TWI795653B - Bicycle hub assembly - Google Patents

Bicycle hub assembly Download PDF

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Publication number
TWI795653B
TWI795653B TW109122289A TW109122289A TWI795653B TW I795653 B TWI795653 B TW I795653B TW 109122289 A TW109122289 A TW 109122289A TW 109122289 A TW109122289 A TW 109122289A TW I795653 B TWI795653 B TW I795653B
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TW
Taiwan
Prior art keywords
bicycle
sprocket
hub assembly
ratchet member
axial
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TW109122289A
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Chinese (zh)
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TW202118652A (en
Inventor
藤田寬司
腰山和喜
中西崇
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日商島野股份有限公司
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Priority claimed from US15/608,924 external-priority patent/US11332213B2/en
Priority claimed from US15/608,915 external-priority patent/US11059541B2/en
Priority claimed from US15/673,346 external-priority patent/US10377174B2/en
Priority claimed from US15/686,179 external-priority patent/US11220309B2/en
Priority claimed from US15/686,177 external-priority patent/US11179967B2/en
Application filed by 日商島野股份有限公司 filed Critical 日商島野股份有限公司
Publication of TW202118652A publication Critical patent/TW202118652A/en
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Publication of TWI795653B publication Critical patent/TWI795653B/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
    • B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
    • B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
    • B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
    • B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0015—Hubs for driven wheels
    • B60B27/0021—Hubs for driven wheels characterised by torque transmission means from drive axle
    • B60B27/0026—Hubs for driven wheels characterised by torque transmission means from drive axle of the radial type, e.g. splined key
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/0047—Hubs characterised by functional integration of other elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/023—Hubs adapted to be rotatably arranged on axle specially adapted for bicycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B27/00—Hubs
    • B60B27/02—Hubs adapted to be rotatably arranged on axle
    • B60B27/04—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets
    • B60B27/047—Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets comprising a freewheel mechanisms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/24—Freewheels or freewheel clutches specially adapted for cycles
    • F16D41/36—Freewheels or freewheel clutches specially adapted for cycles with clutching ring or disc axially shifted as a result of lost motion between actuating members

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Gears, Cams (AREA)
  • Steering Devices For Bicycles And Motorcycles (AREA)
  • Automatic Cycles, And Cycles In General (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

A bicycle hub assembly comprises a hub axle, a hub body, a sprocket support body, and a freewheel structure. The sprocket support body includes at least ten external spline teeth configured to engage with a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external-spline driving surface and an external-spline non-driving surface. The freewheel structure includes a first ratchet member and a second ratchet member. The first ratchet member includes at least one first ratchet tooth. The second ratchet member includes at least one second ratchet tooth configured to engage with the at least one first ratchet tooth in a torque transmitting manner.

Description

自行車輪轂總成Bicycle hub assembly

本發明係關於一種自行車輪轂總成。 The invention relates to a bicycle hub assembly.

騎車正變成更日益流行的消遣形式以及交通方式。此外，騎車已變成業餘及專業人員兩者之非常流行的競技運動。不論自行車是用於消遣、交通抑或是用於競賽，自行車行業正不斷地改良自行車之各種組件。已經充分重新設計之一個自行車組件為輪轂總成。 Cycling is becoming an increasingly popular form of recreation as well as a mode of transportation. Furthermore, cycling has become a very popular competitive sport for both amateurs and professionals. Whether the bicycle is used for recreation, transportation, or competition, the bicycle industry is constantly improving the various components of the bicycle. One of the bicycle components that has been substantially redesigned is the wheel hub assembly.

根據本發明之第一態樣，一種自行車輪轂總成包含一輪轂軸、一輪轂主體、一鏈輪支撐主體及一自由輪結構。該輪轂主體圍繞該自行車輪轂總成之一旋轉中心軸線可旋轉地安裝於該輪轂軸上。該鏈輪支撐主體圍繞該旋轉中心軸線可旋轉地安裝於該輪轂軸上。該鏈輪支撐主體包括經構形以與一自行車後鏈輪總成嚙合之至少十個外部花鍵齒。該至少十個外部花鍵齒中之每一者具有一外部花鍵傳動表面及一外部花鍵非傳動表面。該自由輪結構包括一第一棘輪構件及一第二棘輪構件。該第一棘輪構件包括至少一個第一棘輪齒。該第二棘輪構件包括經構形以按一扭矩傳輸方式與該至少一個第一棘輪齒嚙合之至少一個第二棘輪齒。該第一棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之一者嚙合。該第 二棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之另一者嚙合。該第一棘輪構件及該第二棘輪構件中之至少一者可在相對於該旋轉中心軸線之一軸向方向上相對於該輪轂軸移動。 According to a first aspect of the present invention, a bicycle hub assembly includes a hub shaft, a hub body, a sprocket supporting body and a freewheel structure. The hub main body is rotatably mounted on the hub axle around a rotation center axis of the bicycle hub assembly. The sprocket support body is rotatably mounted on the hub shaft around the rotation center axis. The sprocket support body includes at least ten external spline teeth configured to engage a bicycle rear sprocket assembly. Each of the at least ten external spline teeth has an external spline drive surface and an external spline non-drive surface. The free wheel structure includes a first ratchet component and a second ratchet component. The first ratchet member includes at least one first ratchet tooth. The second ratchet member includes at least one second ratchet tooth configured to engage the at least one first ratchet tooth in a torque transmitting manner. The first ratchet member is configured to engage one of the hub body and the sprocket support body in a torque transmitting manner. The first Two ratchet members are configured to engage the other of the hub body and the sprocket support body in a torque transmitting manner. At least one of the first ratchet member and the second ratchet member is movable relative to the hub shaft in an axial direction relative to the rotational center axis.

在根據第一態樣之自行車輪轂總成之情況下，相比於包括九個或更少外部花鍵齒之鏈輪支撐主體，至少十個外部花鍵齒減少施加至至少十個外部花鍵齒中之每一者的旋轉力。此改良鏈輪支撐主體之耐久性及/或改良挑選鏈輪支撐主體之材料的自由度而不降低鏈輪支撐主體之耐久性。此外，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the first aspect, at least ten external spline teeth are reduced to at least ten external splines compared to a sprocket support body comprising nine or fewer external spline teeth The rotational force of each of the teeth. This improves the durability of the sprocket support body and/or improves the freedom to choose the material of the sprocket support body without reducing the durability of the sprocket support body. In addition, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第二態樣，如第一態樣之自行車輪轂總成經構形以使得該至少十個外部花鍵齒之一總數目等於或大於20。 According to a second aspect of the invention, the bicycle hub assembly of the first aspect is configured such that the total number of one of the at least ten external spline teeth is equal to or greater than twenty.

在根據第二態樣之自行車輪轂總成之情況下，有可能進一步改良鏈輪支撐主體之耐久性及/或進一步改良挑選鏈輪支撐主體之材料的自由度而不降低鏈輪支撐主體之耐久性。 In the case of the bicycle hub assembly according to the second aspect, it is possible to further improve the durability of the sprocket support body and/or further improve the degree of freedom in selecting the material of the sprocket support body without reducing the durability of the sprocket support body sex.

根據本發明之第三態樣，如第一態樣之自行車輪轂總成經構形以使得該至少十個外部花鍵齒之一總數目等於或大於25。 According to a third aspect of the invention, the bicycle hub assembly of the first aspect is configured such that the total number of one of the at least ten external spline teeth is equal to or greater than twenty-five.

在根據第三態樣之自行車輪轂總成之情況下，有可能進一步改良鏈輪支撐主體之耐久性及/或進一步改良挑選鏈輪支撐主體之材料的自由度而不降低鏈輪支撐主體之耐久性。 In the case of the bicycle hub assembly according to the third aspect, it is possible to further improve the durability of the sprocket support body and/or further improve the degree of freedom in selecting the material of the sprocket support body without reducing the durability of the sprocket support body sex.

根據本發明之第四態樣，如第一態樣至第三態樣中任一項之自行車輪轂總成經構形以使得該至少十個外部花鍵齒具有一第一外部周節角及不同於該第一外部周節角之一第二外部周節角。 According to a fourth aspect of the present invention, the bicycle hub assembly of any one of the first to third aspects is configured such that the at least ten external spline teeth have a first external circumferential pitch angle and A second outer circumferential pitch angle different from the first outer circumferential pitch angle.

在根據第四態樣之自行車輪轂總成之情況下，有可能易於在正確的 圓周位置中將自行車後鏈輪總成附接至自行車輪轂總成。 In the case of the bicycle hub assembly according to the fourth aspect, it is possible to easily The bicycle rear sprocket assembly is attached to the bicycle hub assembly in a circumferential position.

根據本發明之第五態樣，如第一態樣至第四態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體包括經構形以與一自行車後鏈輪總成嚙合之複數個外部花鍵齒。該複數個外部花鍵齒中之至少兩個外部花鍵齒相對於該自行車輪轂總成之一旋轉中心軸線以一第一外部周節角沿圓周配置。該第一外部周節角在10度至20度之範圍內。 According to a fifth aspect of the present invention, the bicycle hub assembly of any one of the first to fourth aspects is configured so that the sprocket support body includes a A plurality of external spline teeth in mesh. At least two of the plurality of external spline teeth are arranged along the circumference at a first external peripheral pitch angle relative to a rotation center axis of the bicycle hub assembly. The first outer pitch angle is in the range of 10 degrees to 20 degrees.

在根據第五態樣之自行車輪轂總成之情況下，有可能進一步改良鏈輪支撐主體之耐久性及/或進一步改良挑選鏈輪支撐主體之材料的自由度而不降低鏈輪支撐主體之耐久性。 In the case of the bicycle hub assembly according to the fifth aspect, it is possible to further improve the durability of the sprocket support body and/or further improve the degree of freedom in selecting the material of the sprocket support body without reducing the durability of the sprocket support body sex.

根據本發明之第六態樣，如第五態樣之自行車輪轂總成經構形以使得該第一外部周節角在12度至15度之範圍內。 According to a sixth aspect of the present invention, the bicycle hub assembly of the fifth aspect is configured such that the first outer circumferential pitch angle is in the range of 12 degrees to 15 degrees.

在根據第六態樣之自行車輪轂總成之情況下，有可能進一步改良鏈輪支撐主體之耐久性及/或進一步改良挑選鏈輪支撐主體之材料的自由度而不降低鏈輪支撐主體之耐久性。 In the case of the bicycle hub assembly according to the sixth aspect, it is possible to further improve the durability of the sprocket support body and/or further improve the degree of freedom in selecting the material of the sprocket support body without reducing the durability of the sprocket support body sex.

根據本發明之第七態樣，如第一態樣至第六態樣中任一項之自行車輪轂總成經構形以使得該至少一個第一棘輪齒安置於該第一棘輪構件之一軸向表面上。該至少一個第二棘輪齒安置於該第二棘輪構件之一軸向表面上。該第二棘輪構件之該軸向表面面朝該第一棘輪構件之該軸向表面。 According to a seventh aspect of the present invention, the bicycle hub assembly of any one of the first to sixth aspects is configured such that the at least one first ratchet tooth is disposed on a shaft of the first ratchet member to the surface. The at least one second ratchet tooth is disposed on an axial surface of the second ratchet member. The axial surface of the second ratchet member faces the axial surface of the first ratchet member.

在根據第七態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the seventh aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第八態樣，如第一態樣至第七態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體包括具有一第一螺旋花鍵之一外周邊表面。該第一棘輪構件經構形以按一扭矩傳輸方式與該鏈輪支撐主體嚙 合，且包括與該第一螺旋花鍵配合之一第二螺旋花鍵。 According to an eighth aspect of the present invention, the bicycle hub assembly of any one of the first to seventh aspects is configured such that the sprocket supporting body includes an outer periphery having a first helical spline surface. The first ratchet member is configured to engage the sprocket support body in a torque transmitting manner and includes a second helical spline mated with the first helical spline.

在根據第八態樣之自行車輪轂總成之情況下，第一螺旋花鍵及第二螺旋花鍵回應於第一棘輪構件與鏈輪支撐主體之間的相對旋轉而相對於鏈輪支撐主體順利地移動第一棘輪構件。此使自由輪結構之狀態在扭矩傳輸方式與扭矩非傳輸方式之間順利地切換。 In the case of the bicycle hub assembly according to the eighth aspect, the first helical spline and the second helical spline move smoothly with respect to the sprocket support body in response to the relative rotation between the first ratchet member and the sprocket support body. to move the first ratchet member. This enables a smooth switching of the state of the freewheel structure between torque transmitting mode and torque non-transmitting mode.

根據本發明之第九態樣，如第八態樣之自行車輪轂總成經構形以使得該第一棘輪構件係在藉由自該鏈輪支撐主體施加之一第一推力傳動期間經由與該第一螺旋花鍵配合之該第二螺旋花鍵在相對於該鏈輪支撐主體之該軸向方向上可移動地安裝。 According to a ninth aspect of the present invention, the bicycle hub assembly according to the eighth aspect is configured such that the first ratchet member is driven by a first thrust force applied from the sprocket support body via the The second helical spline to which the first helical spline engages is movably mounted in the axial direction relative to the sprocket support body.

在根據第九態樣之自行車輪轂總成之情況下，有可能使自由輪結構之狀態在扭矩傳輸方式與扭矩非傳輸方式之間更順利地切換。 In the case of the bicycle hub assembly according to the ninth aspect, it is possible to switch the state of the freewheel structure more smoothly between the torque transmission mode and the torque non-transmission mode.

根據本發明之第十態樣，如第一態樣至第九態樣中任一項之自行車輪轂總成經構形以使得該至少一個第二棘輪齒與該至少一個第一棘輪齒嚙合以將一旋轉力自該鏈輪支撐主體傳輸至該輪轂主體。 According to a tenth aspect of the present invention, the bicycle hub assembly according to any one of the first to ninth aspects is configured such that the at least one second ratchet tooth meshes with the at least one first ratchet tooth to A rotational force is transmitted from the sprocket support body to the hub body.

在根據第十態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the tenth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第十一態樣，如第八態樣或第九態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體具有設置於該外周邊表面上之一導引部分以在惰轉期間朝向該輪轂主體導引該第一棘輪構件。 According to the eleventh aspect of the present invention, the bicycle hub assembly of any one of the eighth aspect or the ninth aspect is configured such that the sprocket supporting body has a guide provided on the outer peripheral surface. The guide portion guides the first ratchet member toward the hub body during idling.

在根據第十一態樣之自行車輪轂總成之情況下，導引部分減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the eleventh aspect, the guide portion reduces noise during idling.

根據本發明之第十二態樣，如第十一態樣之自行車輪轂總成經構形以使得該導引部分在惰轉期間朝向該輪轂主體導引該第一棘輪構件以解除 該至少一個第一棘輪齒與該至少一個第二棘輪齒之間的一嚙合。 According to a twelfth aspect of the present invention, the bicycle hub assembly of the eleventh aspect is configured such that the guide portion guides the first ratchet member toward the hub main body during idling for release. An engagement between the at least one first ratchet tooth and the at least one second ratchet tooth.

在根據第十二態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the twelfth aspect, the guide portion effectively reduces noise during idling.

根據本發明之第十三態樣，如第十一態樣或第十二態樣之自行車輪轂總成經構形以使得該導引部分在相對於該鏈輪支撐主體之至少一圓周方向上延伸。 According to a thirteenth aspect of the present invention, the bicycle hub assembly such as the eleventh aspect or the twelfth aspect is configured such that the guide portion is in at least one circumferential direction relative to the sprocket supporting body extend.

在根據第十三態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the thirteenth aspect, the guide portion effectively reduces noise during idling.

根據本發明之第十四態樣，如第十一態樣至第十三態樣中任一項之自行車輪轂總成經構形以使得該導引部分經構形以相對於該第一螺旋花鍵界定一鈍角。 According to a fourteenth aspect of the present invention, the bicycle hub assembly according to any one of the eleventh aspect to the thirteenth aspect is configured such that the guide portion is configured to be opposite to the first spiral The spline defines an obtuse angle.

在根據第十四態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the fourteenth aspect, the guide portion effectively reduces noise during idling.

根據本發明之第十五態樣，如第一態樣至第十四態樣中任一項之自行車輪轂總成經構形以使得該第二棘輪構件包括一輪轂主體嚙合部分，該輪轂主體嚙合部分按一扭矩傳輸方式與該輪轂主體嚙合以經由該輪轂主體嚙合部分將一旋轉力自該第一棘輪構件傳輸至該輪轂主體。 According to a fifteenth aspect of the present invention, the bicycle hub assembly of any one of the first to fourteenth aspects is configured such that the second ratchet member includes a hub main body engaging portion, the hub main body The engaging portion is engaged with the hub body in a torque transmission manner to transmit a rotational force from the first ratchet member to the hub body via the hub body engaging portion.

在根據第十五態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifteenth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第十六態樣，如第十五態樣之自行車輪轂總成經構形以使得該輪轂主體嚙合部分及該輪轂主體中之一者包括相對於該自行車輪轂總成之該旋轉中心軸線徑向延伸的至少一個突起部。該輪轂主體嚙合部分及該輪轂主體中之另一者包括與該至少一個突起部嚙合之至少一個凹 槽。 According to a sixteenth aspect of the present invention, the bicycle hub assembly of the fifteenth aspect is configured such that one of the hub body engaging portion and the hub body includes the rotation relative to the bicycle hub assembly. At least one protrusion extending radially from the central axis. The other of the hub body engaging portion and the hub body includes at least one recess that engages the at least one protrusion. groove.

在根據第十六態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the sixteenth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第十七態樣，如第一態樣至第十六態樣中任一項之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 According to a seventeenth aspect of the present invention, the bicycle hub assembly according to any one of the first aspect to the sixteenth aspect further includes a biasing member disposed between the hub main body and the first between the ratchet members to bias the first ratchet member toward the second ratchet member in the axial direction.

在根據第十七態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the seventeenth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第十八態樣，如第十一態樣至第十四態樣中任一項之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。該第二棘輪構件按一扭矩傳輸方式與該輪轂主體嚙合。該偏置構件與該輪轂主體嚙合以與該輪轂主體一起旋轉。該第一棘輪構件接觸該導引部分以藉由在惰轉期間在該偏置構件與該第一棘輪構件之間產生之一旋轉摩擦力與該第二棘輪構件脫嚙。 According to the eighteenth aspect of the present invention, the bicycle hub assembly according to any one of the eleventh aspect to the fourteenth aspect further includes a biasing member arranged between the hub main body and the first A ratchet member is disposed therebetween to bias the first ratchet member toward the second ratchet member in the axial direction. The second ratchet member is engaged with the hub body in a torque transmitting manner. The biasing member is engaged with the hub body for rotation therewith. The first ratchet member contacts the guide portion to disengage from the second ratchet member by generating a rotational friction force between the biasing member and the first ratchet member during idling.

在根據第十八態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the eighteenth aspect, the guide portion effectively reduces noise during idling.

根據本發明之第十九態樣，如第一態樣至第十八態樣中任一項之自行車輪轂總成經構形以使得該至少一個第一棘輪齒包括複數個第一棘輪齒。該至少一個第二棘輪齒包括複數個第二棘輪齒。 According to a nineteenth aspect of the present invention, the bicycle hub assembly of any one of the first to eighteenth aspects is configured such that the at least one first ratchet tooth includes a plurality of first ratchet teeth. The at least one second ratchet tooth includes a plurality of second ratchet teeth.

在根據第十九態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the nineteenth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第二十態樣，如第一態樣至第十九態樣中任一項之自行車輪轂總成經構形以使得該第一棘輪構件及該第二棘輪構件中之每一者具有一環狀形狀。 According to a twentieth aspect of the present invention, the bicycle hub assembly according to any one of the first to nineteenth aspects is configured such that each of the first ratchet member and the second ratchet member Those have a ring shape.

在根據第二十態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the twentieth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第二十一態樣，如第一態樣至第二十態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體包括一鄰接件，該鄰接件用以鄰接該第二棘輪構件以限制該第二棘輪構件遠離該輪轂主體之一軸向移動。該第一棘輪構件安置於該第二棘輪構件之一軸向側上，該第二棘輪構件在該軸向方向上與該鏈輪支撐主體之該鄰接件相對。 According to a twenty-first aspect of the present invention, the bicycle hub assembly of any one of the first to twentieth aspects is configured such that the sprocket supporting body includes an abutment for to abut the second ratchet member to limit axial movement of the second ratchet member away from one of the hub bodies. The first ratchet member is arranged on an axial side of the second ratchet member, which is opposite the abutment of the sprocket support body in the axial direction.

在根據第二十一態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the twenty-first aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第二十二態樣，如第二十一態樣之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 According to a twenty-second aspect of the present invention, the bicycle hub assembly according to the twenty-first aspect further includes a biasing member disposed between the hub main body and the first ratchet member to move between the hub body and the first ratchet member. The first ratchet member is biased toward the second ratchet member in an axial direction.

在根據第二十二態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the twenty-second aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第二十三態樣，如第二十二態樣之自行車輪轂總成經構形以使得該輪轂主體包括一內部空間。該鏈輪支撐主體之該外周邊表面支撐該第一棘輪構件及該第二棘輪構件。該鏈輪支撐主體、該偏置構件、該第一棘輪構件及該第二棘輪構件中之每一者至少部分地安置於該輪轂主體之該內部空間中。 According to a twenty-third aspect of the present invention, the bicycle hub assembly of the twenty-second aspect is configured such that the hub main body includes an inner space. The outer peripheral surface of the sprocket supporting body supports the first ratchet member and the second ratchet member. Each of the sprocket support body, the biasing member, the first ratchet member, and the second ratchet member are at least partially disposed within the interior space of the hub body.

在根據第二十三態樣之自行車輪轂總成之情況下，有可能進一步改 良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the twenty-third aspect, it is possible to further modify Improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the free wheel structure.

根據本發明之第二十四態樣，根據第一態樣至第二十三態樣如中任一項之自行車輪轂總成經構形使得該輪轂主體包括一第一輪輻安裝部分、一第二輪輻安裝部分及一第一軸向長度。該第一輪輻安裝部分具有一第一軸向最外部分。該第二輪輻安裝部分具有一第二軸向最外部分。該第一軸向長度在該軸向方向上界定於該第一輪輻安裝部分之該第一軸向最外部分與該第二輪輻安裝部分之該第二軸向最外部分之間。該第一軸向長度等於或大於55mm。 According to a twenty-fourth aspect of the present invention, the bicycle hub assembly according to any one of the first aspect to the twenty-third aspect is configured such that the hub main body includes a first spoke mounting portion, a first Two spoke mounting portions and a first axial length. The first spoke mounting portion has a first axially outermost portion. The second spoke mounting portion has a second axially outermost portion. The first axial length is defined in the axial direction between the first axially outermost portion of the first spoke mounting portion and the second axially outermost portion of the second spoke mounting portion. The first axial length is equal to or greater than 55 mm.

在根據第二十四態樣之自行車輪轂總成之情況下，第一軸向長度改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the twenty-fourth aspect, the first axial length improves the strength of the wheel including the bicycle hub assembly.

根據本發明之第二十五態樣，如第二十四態樣之自行車輪轂總成經構形以使得該第一軸向長度等於或大於60mm。 According to a twenty-fifth aspect of the present invention, the bicycle hub assembly of the twenty-fourth aspect is configured such that the first axial length is equal to or greater than 60 mm.

在根據第二十五態樣之自行車輪轂總成之情況下，該第一軸向長度進一步改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the twenty-fifth aspect, the first axial length further improves the strength of the wheel comprising the bicycle hub assembly.

根據本發明之第二十六態樣，如第二十四態樣之自行車輪轂總成經構形以使得該第一軸向長度等於或大於65mm。 According to a twenty-sixth aspect of the present invention, the bicycle hub assembly of the twenty-fourth aspect is configured such that the first axial length is equal to or greater than 65 mm.

在根據第二十六態樣之自行車輪轂總成之情況下，第一軸向長度進一步改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the twenty-sixth aspect, the first axial length further improves the strength of the wheel including the bicycle hub assembly.

根據本發明之第二十七態樣，如第二十四態樣至第二十六態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形 以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於140mm。 According to a twenty-seventh aspect of the present invention, the bicycle hub assembly according to any one of the twenty-fourth aspect to the twenty-sixth aspect is configured such that the hub shaft includes a first axial frame adjoining surface, a second axial frame adjoining surface and a second axial length. The first axial frame abutment surface is configured to abut a first portion of the bicycle frame in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. The second axial frame abutment surface is textured To adjoin a second portion of the bicycle frame in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. The second axial length is bounded in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 140mm.

在根據第二十七態樣之自行車輪轂總成之情況下，第二軸向長度使得自行車輪轂總成可附接至各種類型之自行車框架，同時獲得第一態樣之效果。 In the case of the bicycle hub assembly according to the twenty-seventh aspect, the second axial length enables the bicycle hub assembly to be attached to various types of bicycle frames while obtaining the effects of the first aspect.

根據本發明之第二十八態樣，如第二十四態樣至第二十六態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於145mm。 According to a twenty-eighth aspect of the present invention, the bicycle hub assembly according to any one of the twenty-fourth aspect to the twenty-sixth aspect is configured such that the hub shaft includes a first axial frame adjoining surface, a second axial frame adjoining surface and a second axial length. The first axial frame abutment surface is configured to abut a first portion of the bicycle frame in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. The second axial frame abutment surface is configured to abut a second portion of the bicycle frame in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. The second axial length is bounded in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 145mm.

在根據第二十八態樣之自行車輪轂總成之情況下，第二軸向長度改良挑選第一軸向長度之自由度及/或達成自行車後鏈輪總成之較寬範圍，且使得第一軸向長度能夠伸長以使得更多鏈輪可安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the twenty-eighth aspect, the second axial length improves the degree of freedom in selecting the first axial length and/or achieves a wider range of the bicycle rear sprocket assembly, and makes the second An axial length can be extended so that more sprockets can be mounted to the bicycle hub assembly.

根據本發明之第二十九態樣，如第二十四態樣至第二十六態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向 方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於147mm。 According to a twenty-ninth aspect of the present invention, the bicycle hub assembly according to any one of the twenty-fourth aspect to the twenty-sixth aspect is configured such that the hub shaft includes a first axial frame adjoining surface, a second axial frame adjoining surface and a second axial length. The first axial frame abutment surface is configured to be in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. Directionally adjoins a first portion of the bicycle frame. The second axial frame abutment surface is configured to abut a second portion of the bicycle frame in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. The second axial length is bounded in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 147 mm.

在根據第二十九態樣之自行車輪轂總成之情況下，第二軸向長度改良挑選第一軸向長度之自由度及/或達成自行車後鏈輪總成之較寬範圍，且使得第一軸向長度能夠伸長以使得更多鏈輪可安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the twenty-ninth aspect, the second axial length improves the degree of freedom in selecting the first axial length and/or achieves a wider range of the bicycle rear sprocket assembly, and makes the second axial length An axial length can be extended so that more sprockets can be mounted to the bicycle hub assembly.

根據本發明之第三十態樣，一種自行車輪轂總成包含一輪轂軸、一輪轂主體、一鏈輪支撐主體及一自由輪結構。該輪轂主體圍繞該自行車輪轂總成之一旋轉中心軸線可旋轉地安裝於該輪轂軸上。該鏈輪支撐主體圍繞該旋轉中心軸線可旋轉地安裝於該輪轂軸上。該鏈輪支撐主體包括經構形以與一自行車後鏈輪總成嚙合之至少一個外部花鍵齒。該至少一個外部花鍵齒具有等於或小於30mm之一外部花鍵頂徑。該自由輪結構包括一第一棘輪構件及一第二棘輪構件。該第一棘輪構件包括至少一個第一棘輪齒。該第二棘輪構件包括經構形以按一扭矩傳輸方式與該至少一個第一棘輪齒嚙合之至少一個第二棘輪齒。該第一棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之一者嚙合。該第二棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之另一者嚙合。該第一棘輪構件及該第二棘輪構件中之至少一者可在相對於該旋轉中心軸線之一軸向方向上相對於該輪轂軸移動。 According to a thirtieth aspect of the present invention, a bicycle hub assembly includes a hub shaft, a hub body, a sprocket supporting body, and a freewheel structure. The hub main body is rotatably mounted on the hub axle around a rotation center axis of the bicycle hub assembly. The sprocket support body is rotatably mounted on the hub shaft around the rotation center axis. The sprocket support body includes at least one external spline tooth configured to engage a bicycle rear sprocket assembly. The at least one external spline tooth has an external spline crown diameter equal to or less than 30 mm. The free wheel structure includes a first ratchet component and a second ratchet component. The first ratchet member includes at least one first ratchet tooth. The second ratchet member includes at least one second ratchet tooth configured to engage the at least one first ratchet tooth in a torque transmitting manner. The first ratchet member is configured to engage one of the hub body and the sprocket support body in a torque transmitting manner. The second ratchet member is configured to engage the other of the hub body and the sprocket support body in a torque transmitting manner. At least one of the first ratchet member and the second ratchet member is movable relative to the hub shaft in an axial direction relative to the rotational center axis.

在根據第三十態樣之自行車輪轂總成之情況下，外部花鍵頂徑使得自行車輪轂總成能夠將包括具有十個或更少鏈輪齒之鏈輪的自行車後鏈輪 總成安裝至自行車輪轂總成。此加寬安裝該自行車輪轂總成之自行車後鏈輪總成之齒輪範圍。此外，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。第三十態樣可與第一態樣至第二十九態樣中之任一者組合。 In the case of the bicycle hub assembly according to the thirtieth aspect, the external spline crown diameter enables the bicycle hub assembly to incorporate a bicycle rear sprocket comprising a sprocket with ten or fewer sprockets The assembly is mounted to the bicycle hub assembly. This widens the range of gears of the rear sprocket assembly of the bicycle wheel hub assembly installed. In addition, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure. The thirtieth aspect may be combined with any one of the first to twenty-ninth aspects.

根據本發明之第三十一態樣，如第三十態樣之自行車輪轂總成進一步包含一制動轉子支撐主體，該制動轉子支撐主體包括經構形以與一自行車制動轉子嚙合之至少一個額外外部花鍵齒。該至少一個額外外部花鍵齒具有大於該外部花鍵頂徑之一額外外部花鍵頂徑。 According to a thirty-first aspect of the present invention, the bicycle hub assembly of the thirtieth aspect further includes a brake rotor support body including at least one additional brake rotor configured to engage with a bicycle brake rotor. External spline teeth. The at least one additional external spline tooth has an additional external spline crown diameter greater than the external spline crown diameter.

在根據第三十一態樣之自行車輪轂總成之情況下，制動轉子支撐主體改良制動效能，同時加寬安裝至自行車輪轂總成之自行車後鏈輪總成的齒輪範圍，同時獲得第三十態樣之效果。制動轉子支撐主體亦改良自行車制動轉子之附接及脫離屬性。 In the case of the bicycle hub assembly according to the thirty-first aspect, the brake rotor supporting body improves braking performance while widening the gear range of the bicycle rear sprocket assembly mounted to the bicycle hub assembly, while obtaining the thirty-first The effect of form. The brake rotor support body also improves the attachment and detachment properties of bicycle brake rotors.

根據本發明之第三十二態樣，如第三十態樣或第三十一態樣之自行車輪轂總成經構形以使得該外部花鍵頂徑等於或大於25mm。 According to a thirty-second aspect of the present invention, the bicycle hub assembly of the thirtieth aspect or the thirty-first aspect is configured such that the outer spline top diameter is equal to or greater than 25 mm.

在根據第三十二態樣之自行車輪轂總成之情況下，有可能確保鏈輪支撐主體之強度，同時使得自行車輪轂總成能夠將包括具有十個或更少鏈輪齒之鏈輪的自行車後鏈輪總成安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the thirty-second aspect, it is possible to secure the strength of the sprocket supporting body while enabling the bicycle hub assembly to incorporate a bicycle including a sprocket having ten or fewer sprocket teeth The rear sprocket assembly is mounted to the bicycle hub assembly.

根據本發明之第三十三態樣，如第三十態樣或第三十一態樣之自行車輪轂總成經構形以使得該外部花鍵頂徑等於或大於29mm。 According to a thirty-third aspect of the present invention, the bicycle hub assembly of the thirtieth aspect or the thirty-first aspect is configured such that the outer spline top diameter is equal to or greater than 29 mm.

在根據第三十三態樣之自行車輪轂總成之情況下，有可能確保鏈輪支撐主體之強度，同時使得自行車輪轂總成能夠將包括具有十個或更少鏈輪齒之鏈輪的自行車後鏈輪總成安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the thirty-third aspect, it is possible to secure the strength of the sprocket supporting body while enabling the bicycle hub assembly to incorporate a bicycle including a sprocket having ten or fewer sprocket teeth The rear sprocket assembly is mounted to the bicycle hub assembly.

根據本發明之第三十四態樣，如第三十態樣至第三十三態樣中任一 項之自行車輪轂總成經構形以使得該至少一個外部花鍵齒具有一外部花鍵底徑。該外部花鍵底徑等於或小於28mm。 According to the thirty-fourth aspect of the present invention, any one of the thirty-third aspect to the thirty-third aspect The bicycle hub assembly of claim 1 is configured such that the at least one external spline tooth has an external spline base diameter. The external spline bottom diameter is equal to or less than 28mm.

在根據第三十四態樣之自行車輪轂總成之情況下，外部花鍵底徑可增大至少一個外部花鍵齒之傳動表面之徑向長度。此改良鏈輪支撐主體之強度。 In the case of the bicycle hub assembly according to the thirty-fourth aspect, the outer spline bottom diameter may increase the radial length of the transmission surface of at least one outer spline tooth. This improved sprocket supports the strength of the main body.

根據本發明之第三十五態樣，如第三十四態樣之自行車輪轂總成經構形以使得該外部花鍵底徑等於或大於25mm。 According to a thirty-fifth aspect of the present invention, the bicycle hub assembly of the thirty-fourth aspect is configured such that the external spline bottom diameter is equal to or greater than 25 mm.

在根據第三十五態樣之自行車輪轂總成之情況下，有可能確保鏈輪支撐主體之強度，同時使得自行車輪轂總成能夠將包括具有十個或更少鏈輪齒之鏈輪的自行車後鏈輪總成安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the thirty-fifth aspect, it is possible to secure the strength of the sprocket supporting body while enabling the bicycle hub assembly to incorporate a bicycle including a sprocket having ten or less sprocket teeth The rear sprocket assembly is mounted to the bicycle hub assembly.

根據本發明之第三十六態樣，如第三十四態樣之自行車輪轂總成經構形以使得該外部花鍵底徑等於或大於27mm。 According to a thirty-sixth aspect of the present invention, the bicycle hub assembly of the thirty-fourth aspect is configured such that the outer spline bottom diameter is equal to or greater than 27 mm.

在根據第三十六態樣之自行車輪轂總成之情況下，有可能確保鏈輪支撐主體之強度，同時使得自行車輪轂總成能夠將包括具有十個或更少鏈輪齒之鏈輪的自行車後鏈輪總成安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the thirty-sixth aspect, it is possible to secure the strength of the sprocket supporting body while enabling the bicycle hub assembly to incorporate a bicycle including a sprocket having ten or fewer sprocket teeth The rear sprocket assembly is mounted to the bicycle hub assembly.

根據本發明之第三十七態樣，如第三十態樣至第三十六態樣中任一項之自行車輪轂總成經構形以使得該至少一個外部花鍵齒包括複數個外部花鍵齒，該複數個外部花鍵齒包括用以在踩踏期間接收來自該自行車後鏈輪總成之一傳動旋轉力的複數個外部花鍵傳動表面。該複數個外部花鍵傳動表面各自包括一徑向最外邊緣、一徑向最內邊緣及自該徑向最外邊緣至該徑向最內邊緣界定之一徑向長度。該複數個外部花鍵傳動表面之該等徑向長度之一總和等於或大於7mm。 According to the thirty-seventh aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the thirty-sixth aspect is configured such that the at least one external spline tooth includes a plurality of external spline teeth. Spline teeth, the plurality of external spline teeth include a plurality of external spline drive surfaces for receiving a drive rotational force from a drive of the bicycle rear sprocket assembly during pedaling. Each of the plurality of external splined drive surfaces includes a radially outermost edge, a radially innermost edge, and a radial length defined from the radially outermost edge to the radially innermost edge. The sum of one of the radial lengths of the plurality of external splined transmission surfaces is equal to or greater than 7 mm.

在根據第三十七態樣之自行車輪轂總成之情況下，有可能增大複數 個外部花鍵傳動表面之徑向長度。此改良鏈輪支撐主體之強度。 In the case of the bicycle hub assembly according to the thirty-seventh aspect, it is possible to increase the plural The radial length of the drive surface of an external spline. This improved sprocket supports the strength of the main body.

根據本發明之第三十八態樣，如第三十七態樣之自行車輪轂總成經構形以使得該等徑向長度之該總和等於或大於10mm。 According to a thirty-eighth aspect of the present invention, the bicycle hub assembly of the thirty-seventh aspect is configured such that the sum of the radial lengths is equal to or greater than 10 mm.

在根據第三十八態樣之自行車輪轂總成之情況下，有可能進一步增大複數個外部花鍵傳動表面之徑向長度。此進一步改良鏈輪支撐主體之強度。 In the case of the bicycle hub assembly according to the thirty-eighth aspect, it is possible to further increase the radial length of the plurality of external spline transmission surfaces. This further improves the strength of the sprocket support body.

根據本發明之第三十九態樣，如根據第三十七態樣之自行車輪轂總成經構形以使得該等徑向長度之該總和等於或大於15mm。 According to a thirty-ninth aspect of the present invention, the bicycle hub assembly according to the thirty-seventh aspect is configured such that the sum of the radial lengths is equal to or greater than 15 mm.

在根據第三十九態樣之自行車輪轂總成之情況下，有可能進一步增大複數個外部花鍵傳動表面之徑向長度。此進一步改良鏈輪支撐主體之強度。 In the case of the bicycle hub assembly according to the thirty-ninth aspect, it is possible to further increase the radial length of the plurality of external spline transmission surfaces. This further improves the strength of the sprocket support body.

根據本發明之第四十態樣，如第三十態樣至第三十九態樣中任一項之自行車輪轂總成經構形以使得該至少一個第一棘輪齒安置於該第一棘輪構件之一軸向表面上。該至少一個第二棘輪齒安置於該第二棘輪構件之一軸向表面上。該第二棘輪構件之該軸向表面面朝該第一棘輪構件之該軸向表面。 According to the fortieth aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the thirty-ninth aspect is configured such that the at least one first ratchet tooth is disposed on the first ratchet on one of the axial surfaces of the member. The at least one second ratchet tooth is disposed on an axial surface of the second ratchet member. The axial surface of the second ratchet member faces the axial surface of the first ratchet member.

在根據第四十態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fortieth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第四十一態樣，如第三十態樣至第四十態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體包括具有一第一螺旋花鍵之一外周邊表面。該第一棘輪構件經構形以按一扭矩傳輸方式與該鏈輪支撐主體嚙合，且包括與該第一螺旋花鍵配合之一第二螺旋花鍵。 According to the forty-first aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the fortieth aspect is configured such that the sprocket support body includes a first helical spline one of the outer peripheral surfaces. The first ratchet member is configured to engage the sprocket support body in a torque transmitting manner and includes a second helical spline cooperating with the first helical spline.

在根據第四十一態樣之自行車輪轂總成之情況下，第一螺旋花鍵及 第二螺旋花鍵回應於第一棘輪構件與鏈輪支撐主體之間的相對旋轉而相對於鏈輪支撐主體順利地移動第一棘輪構件。此使自由輪結構之狀態在扭矩傳輸方式與扭矩非傳輸方式之間順利地切換。 In the case of the bicycle hub assembly according to the forty-first aspect, the first helical spline and The second helical spline smoothly moves the first ratchet member relative to the sprocket support body in response to relative rotation between the first ratchet member and the sprocket support body. This enables a smooth switching of the state of the freewheel structure between torque transmitting mode and torque non-transmitting mode.

根據本發明之第四十二態樣，如第四十一態樣之自行車輪轂總成經構形以使得該第一棘輪構件係在藉由自該鏈輪支撐主體施加之一第一推力傳動期間經由與該第一螺旋花鍵配合之該第二螺旋花鍵在相對於該鏈輪支撐主體之該軸向方向上可移動地安裝。 According to the forty-second aspect of the present invention, the bicycle hub assembly of the forty-first aspect is configured such that the first ratchet member is driven by a first thrust force applied from the sprocket support body. During this period, the second helical spline engaged with the first helical spline is movably mounted in the axial direction relative to the sprocket supporting body.

在根據第四十二態樣之自行車輪轂總成之情況下，有可能使自由輪結構之狀態在扭矩傳輸方式與扭矩非傳輸方式之間更順利地切換。 In the case of the bicycle hub assembly according to the forty-second aspect, it is possible to switch the state of the freewheel structure more smoothly between the torque transmission mode and the torque non-transmission mode.

根據本發明之第四十三態樣，如第三十態樣至第四十二態樣中任一項之自行車輪轂總成經構形以使得該至少一個第二棘輪齒與該至少一個第一棘輪齒嚙合以將一旋轉力自該鏈輪支撐主體傳輸至該輪轂主體。 According to the forty-third aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the forty-second aspect is configured such that the at least one second ratchet tooth is aligned with the at least one second ratchet tooth. A ratchet tooth engages to transmit a rotational force from the sprocket support body to the hub body.

在根據第四十三態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the forty-third aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第四十四態樣，如根據第四十一態樣或第四十三態樣之自行車輪轂總成經構形以使得該鏈輪支撐主體具有設置於該外周邊表面上之一導引部分以在惰轉期間朝向該輪轂主體導引該第一棘輪構件。 According to a forty-fourth aspect of the present invention, the bicycle hub assembly according to the forty-first aspect or the forty-third aspect is configured such that the sprocket supporting body has a A guide portion guides the first ratchet member toward the hub body during idling.

在根據第四十四態樣之自行車輪轂總成之情況下，導引部分減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the forty-fourth aspect, the guide portion reduces noise during idling.

根據本發明之第四十五態樣，如第四十四態樣之自行車輪轂總成經構形以使得該導引部分在惰轉期間朝向該輪轂主體導引該第一棘輪構件以解除該至少一個第一棘輪齒與該至少一個第二棘輪齒之間的一嚙合。 According to a forty-fifth aspect of the present invention, the bicycle hub assembly of the forty-fourth aspect is configured such that the guide portion guides the first ratchet member toward the hub main body during idling to release the ratchet member. An engagement between at least one first ratchet tooth and the at least one second ratchet tooth.

在根據第四十五態樣之自行車輪轂總成之情況下，導引部分有效地 減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the forty-fifth aspect, the guide part effectively Reduce noise during idling.

根據本發明之第四十六態樣，如第四十四態樣或第四十五態樣之自行車輪轂總成經構形以使得該導引部分在相對於該鏈輪支撐主體之至少一圓周方向上延伸。 According to the forty-sixth aspect of the present invention, the bicycle hub assembly such as the forty-fourth aspect or the forty-fifth aspect is configured such that the guide portion is at least one side relative to the sprocket supporting body. extending in the circumferential direction.

在根據第四十六態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the forty-sixth aspect, the guide portion effectively reduces noise during idling.

根據本發明之第四十七態樣，如第四十四態樣至第四十六態樣中任一項之自行車輪轂總成經構形以使得該導引部分經構形以相對於該第一螺旋花鍵界定一鈍角。 According to the forty-seventh aspect of the present invention, the bicycle hub assembly according to any one of the forty-fourth aspect to the forty-sixth aspect is configured such that the guide portion is configured to be relatively opposite to the The first helical spline defines an obtuse angle.

在根據第四十七態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the forty-seventh aspect, the guide portion effectively reduces noise during idling.

根據本發明之第四十八態樣，如第三十態樣至第四十七態樣中任一項之自行車輪轂總成經構形以使得該第二棘輪構件包括一輪轂主體嚙合部分，該輪轂主體嚙合部分按一扭矩傳輸方式與該輪轂主體嚙合以經由該輪轂主體嚙合部分將一旋轉力自該第一棘輪構件傳輸至該輪轂主體。 According to a forty-eighth aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the forty-seventh aspect is configured such that the second ratchet member includes a hub main body engaging portion, The hub body engaging portion is engaged with the hub body in a torque transmission manner to transmit a rotational force from the first ratchet member to the hub body via the hub body engaging portion.

在根據第四十八態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the forty-eighth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第四十九態樣，如第四十八態樣之自行車輪轂總成經構形以使得該輪轂主體嚙合部分及該輪轂主體中之一者包括相對於該自行車輪轂總成之該旋轉中心軸線徑向延伸的至少一個突起部。該輪轂主體嚙合部分及該輪轂主體中之另一者包括與該至少一個突起部嚙合之至少一個凹槽。 According to the forty-ninth aspect of the present invention, the bicycle hub assembly of the forty-eighth aspect is configured such that one of the hub main body engaging portion and the hub main body includes a At least one protrusion extending radially from the central axis of rotation. The other of the hub body engaging portion and the hub body includes at least one groove that engages the at least one protrusion.

在根據第四十九態樣之自行車輪轂總成之情況下，有可能進一步改 良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the forty-ninth aspect, it is possible to further modify Improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the free wheel structure.

根據本發明之第五十態樣，如第三十態樣至第四十九態樣如中任一項之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 According to the fiftieth aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the forty-ninth aspect further includes a biasing member arranged between the hub main body and The first ratchet member is biased toward the second ratchet member in the axial direction.

在根據第五十態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fiftieth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十一態樣，如第四十四態樣至第四十七態樣如中任一項之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。該第二棘輪構件按一扭矩傳輸方式與該輪轂主體嚙合。該偏置構件與該輪轂主體嚙合以與該輪轂主體一起旋轉。該第一棘輪構件接觸該導引部分以藉由在惰轉期間在該偏置構件與該第一棘輪構件之間產生之一旋轉摩擦力與該第二棘輪構件脫嚙。 According to the fifty-first aspect of the present invention, the bicycle hub assembly according to any one of the forty-fourth aspect to the forty-seventh aspect further includes a biasing member arranged on the hub The first ratchet member is biased toward the second ratchet member in the axial direction between the main body and the first ratchet member. The second ratchet member is engaged with the hub body in a torque transmitting manner. The biasing member is engaged with the hub body for rotation therewith. The first ratchet member contacts the guide portion to disengage from the second ratchet member by generating a rotational friction force between the biasing member and the first ratchet member during idling.

在根據第五十一態樣之自行車輪轂總成之情況下，導引部分有效地減少惰轉期間之雜訊。 In the case of the bicycle hub assembly according to the fifty-first aspect, the guide portion effectively reduces noise during idling.

根據本發明之第五十二態樣，如第三十態樣至第五十一態樣中任一項之自行車輪轂總成經構形以使得該至少一個第一棘輪齒包括複數個第一棘輪齒。該至少一個第二棘輪齒包括複數個第二棘輪齒。 According to the fifty-second aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the fifty-first aspect is configured such that the at least one first ratchet tooth includes a plurality of first ratchet teeth. ratchet teeth. The at least one second ratchet tooth includes a plurality of second ratchet teeth.

在根據第五十二態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifty-second aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十三態樣，如第三十態樣至第五十二態樣中任一項之自行車輪轂總成經構形以使得該第一棘輪構件及該第二棘輪構件中之 每一者具有一環狀形狀。 According to the fifty-third aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the fifty-second aspect is configured such that the first ratchet member and the second ratchet member Of Each has a ring shape.

在根據第五十三態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifty-third aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十四態樣，如第三十態樣至第五十三態樣中任一項之自行車輪轂總成經構形以使得該鏈輪支撐主體包括括一鄰接件，該鄰接件用以鄰接該第二棘輪構件以限制該第二棘輪構件遠離該輪轂主體之一軸向移動。該第一棘輪構件安置於該第二棘輪構件之一軸向側上，該第二棘輪構件在該軸向方向上與該鏈輪支撐主體之該鄰接件相對。 According to the fifty-fourth aspect of the present invention, the bicycle hub assembly according to any one of the thirtieth aspect to the fifty-third aspect is configured such that the sprocket supporting body includes an abutment, the The abutment is used to abut the second ratchet member to limit the axial movement of the second ratchet member away from one of the hub main bodies. The first ratchet member is arranged on an axial side of the second ratchet member, which is opposite the abutment of the sprocket support body in the axial direction.

在根據第五十四態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifty-fourth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十五態樣，如第五十四態樣之自行車輪轂總成進一步包含一偏置構件，該偏置構件安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 According to a fifty-fifth aspect of the present invention, the bicycle hub assembly of the fifty-fourth aspect further includes a biasing member disposed between the hub main body and the first ratchet member so as to move between the hub main body and the first ratchet member. The first ratchet member is biased toward the second ratchet member in an axial direction.

在根據第五十五態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifty-fifth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十六態樣，如第五十五態樣之自行車輪轂總成經構形以使得該輪轂主體包括一內部空間。該鏈輪支撐主體之該外周邊表面支撐該第一棘輪構件及該第二棘輪構件。該鏈輪支撐主體、該偏置構件、該第一棘輪構件及該第二棘輪構件中之每一者至少部分地安置於該輪轂主體之該內部空間中。 According to a fifty-sixth aspect of the present invention, the bicycle hub assembly of the fifty-fifth aspect is configured such that the hub main body includes an inner space. The outer peripheral surface of the sprocket supporting body supports the first ratchet member and the second ratchet member. Each of the sprocket support body, the biasing member, the first ratchet member, and the second ratchet member are at least partially disposed within the interior space of the hub body.

在根據第五十六態樣之自行車輪轂總成之情況下，有可能進一步改良自行車輪轂總成之傳動效率且減輕自由輪結構之重量。 In the case of the bicycle hub assembly according to the fifty-sixth aspect, it is possible to further improve the transmission efficiency of the bicycle hub assembly and reduce the weight of the freewheel structure.

根據本發明之第五十七態樣，如第三十態樣至第五十六態樣中任一 項之自行車輪轂總成經構形以使得該輪轂主體包括一第一輪輻安裝部分、一第二輪輻安裝部分及一第一軸向長度。該第一輪輻安裝部分具有一第一軸向最外部分。該第二輪輻安裝部分具有一第二軸向最外部分。該第一軸向長度在該軸向方向上界定於該第一輪輻安裝部分之該第一軸向最外部分與該第二輪輻安裝部分之該第二軸向最外部分之間。該第一軸向長度等於或大於55mm。 According to the fifty-seventh aspect of the present invention, any one of the thirtieth to fifty-sixth aspects The bicycle hub assembly of Item 1 is configured such that the hub body includes a first spoke mounting portion, a second spoke mounting portion, and a first axial length. The first spoke mounting portion has a first axially outermost portion. The second spoke mounting portion has a second axially outermost portion. The first axial length is defined in the axial direction between the first axially outermost portion of the first spoke mounting portion and the second axially outermost portion of the second spoke mounting portion. The first axial length is equal to or greater than 55 mm.

在根據第五十七態樣之自行車輪轂總成之情況下，第一軸向長度改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the fifty-seventh aspect, the first axial length improves the strength of the wheel including the bicycle hub assembly.

根據本發明之第五十八態樣，如第五十七態樣之自行車輪轂總成經構形以使得該第一軸向長度等於或大於60mm。 According to a fifty-eighth aspect of the present invention, the bicycle hub assembly of the fifty-seventh aspect is configured such that the first axial length is equal to or greater than 60 mm.

在根據第五十八態樣之自行車輪轂總成之情況下，第一軸向長度進一步改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the fifty-eighth aspect, the first axial length further improves the strength of the wheel including the bicycle hub assembly.

根據本發明之第五十九態樣，如第五十七態樣之自行車輪轂總成經構形以使得該第一軸向長度等於或大於65mm。 According to a fifty-ninth aspect of the present invention, the bicycle hub assembly of the fifty-seventh aspect is configured such that the first axial length is equal to or greater than 65 mm.

在根據第五十九態樣之自行車輪轂總成之情況下，第一軸向長度進一步改良包括自行車輪轂總成之車輪的強度。 In the case of the bicycle hub assembly according to the fifty-ninth aspect, the first axial length further improves the strength of the wheel including the bicycle hub assembly.

根據本發明之第六十態樣，如第五十七態樣至第五十九態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該 第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於140mm。 According to a sixtieth aspect of the present invention, the bicycle hub assembly of any one of the fifty-seventh to fifty-ninth aspects is configured such that the hub axle includes a first axial frame abutment surface , a second axial frame abutment surface and a second axial length. The first axial frame abutment surface is configured to abut a first portion of the bicycle frame in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. The second axial frame abutment surface is configured to abut a second portion of the bicycle frame in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. The second axial length is defined in the axial direction by the Between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 140 mm.

在根據第六十態樣之自行車輪轂總成之情況下，第二軸向長度使得自行車輪轂總成可附接至各種類型之自行車框架，同時獲得第三十態樣之效果。 In the case of the bicycle hub assembly according to the sixtieth aspect, the second axial length enables the bicycle hub assembly to be attached to various types of bicycle frames while obtaining the effect of the thirtieth aspect.

根據本發明之第六十一態樣，如第五十七態樣至第五十九態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於145mm。 According to the sixty-first aspect of the present invention, the bicycle hub assembly according to any one of the fifty-seventh aspect to the fifty-ninth aspect is configured such that the hub axle includes a first axial frame adjoining surface, a second axial frame adjoining surface and a second axial length. The first axial frame abutment surface is configured to abut a first portion of the bicycle frame in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. The second axial frame abutment surface is configured to abut a second portion of the bicycle frame in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. The second axial length is bounded in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 145mm.

在根據第六十一態樣之自行車輪轂總成之情況下，第二軸向長度改良挑選第一軸向長度之自由度及/或達成自行車後鏈輪總成之較寬範圍，且使得第一軸向長度能夠伸長以使得更多鏈輪可安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the sixty-first aspect, the second axial length improves the degree of freedom in selecting the first axial length and/or achieves a wider range of the bicycle rear sprocket assembly, and makes the second axial length An axial length can be extended so that more sprockets can be mounted to the bicycle hub assembly.

根據本發明之第六十二態樣，如第五十七態樣至第五十九態樣中任一項之自行車輪轂總成經構形以使得該輪轂軸包括一第一軸向框架鄰接表面、一第二軸向框架鄰接表面及一第二軸向長度。該第一軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分。該第二軸向框架鄰接表面經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰 接該自行車框架之一第二部分。該第二軸向長度在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間。該第二軸向長度等於或大於147mm。 According to the sixty-second aspect of the present invention, the bicycle hub assembly according to any one of the fifty-seventh aspect to the fifty-ninth aspect is configured such that the hub shaft includes a first axial frame adjoining surface, a second axial frame adjoining surface and a second axial length. The first axial frame abutment surface is configured to abut a first portion of the bicycle frame in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame. The second axial frame abutment surface is configured to adjoin in the axial direction in the state where the bicycle hub assembly is mounted to the bicycle frame. Attach the second part to one of the bike frames. The second axial length is bounded in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface. The second axial length is equal to or greater than 147mm.

在根據第六十二態樣之自行車輪轂總成之情況下，第二軸向長度改良挑選第一軸向長度之自由度及/或達成自行車後鏈輪總成之較寬範圍，且使得第一軸向長度能夠伸長以使得更多鏈輪可安裝至自行車輪轂總成。 In the case of the bicycle hub assembly according to the sixty-second aspect, the second axial length improves the degree of freedom in selecting the first axial length and/or achieves a wider range of the bicycle rear sprocket assembly, and makes the second An axial length can be extended so that more sprockets can be mounted to the bicycle hub assembly.

10:自行車傳動系統 10: Bicycle drive system

12:自行車輪轂總成 12: Bicycle hub assembly

14:自行車後鏈輪總成 14:Bicycle rear sprocket assembly

16:自行車制動轉子 16: Bicycle brake rotor

18:曲柄總成 18: crank assembly

20:自行車鏈條 20: Bicycle chain

22:曲柄軸 22: crankshaft

24:右曲柄臂 24: Right crank arm

26:左曲柄臂 26: Left crank arm

27:前鏈輪 27: Front sprocket

28:鏈輪支撐主體 28: Sprocket support body

28A:內部帶螺紋部分 28A: internal threaded part

28B:第一軸向端 28B: first axial end

28C:第二軸向端 28C: second axial end

28D:軸向鏈輪鄰接表面 28D: Axial sprocket abutment surface

28E:鄰接件 28E: Adjacent parts

28G:導引部分 28G: Guide part

28H:第一螺旋花鍵 28H: The first helical spline

28I:輪轂指示器 28I: hub indicator

28P:外周邊表面 28P: Outer peripheral surface

30:輪轂軸 30: hub shaft

30A:通孔 30A: Through hole

30B:第一軸端 30B: first shaft end

30B1:第一軸向框架鄰接表面 30B1: First axial frame abutment surface

30C:第二軸端 30C: second shaft end

30C1:第二軸向框架鄰接表面 30C1: Second Axial Frame Adjacent Surface

32:鎖環 32: lock ring

32A:外部帶螺紋部分 32A: external threaded part

32B:鎖定凸緣 32B: Locking flange

34:制動轉子支撐主體 34: Brake rotor support body

36:輪轂主體 36: Hub main body

36A:第一輪輻安裝部分 36A: The first spoke installation part

36A1:第一附接孔 36A1: First attachment hole

36B:第二輪輻安裝部分 36B: Second spoke installation part

36B1:第二附接孔 36B1: Second attachment hole

36C:第一軸向最外部分 36C: the outermost part of the first axis

36D:第二軸向最外部分 36D: the outermost part of the second axis

36F:連接孔 36F: connection hole

36H:自由輪外殼 36H: Free wheel housing

36R:凹槽 36R: Groove

36S:內周邊表面 36S: inner peripheral surface

36T:第一齒 36T: first tooth

38:自由輪結構/單向聯軸結構 38: Free wheel structure / one-way coupling structure

39A:第一軸承 39A: First bearing

39B:第二軸承 39B:Second bearing

40:外部花鍵齒 40: External spline teeth

40A:徑向最外端 40A: Radial outermost end

40G:溝槽 40G: Groove

41:基座支撐件 41: Base support

42:較大直徑部分 42: Larger diameter part

42A:軸向端 42A: axial end

44:凸緣 44: Flange

46:螺旋外部花鍵齒 46: Helical external spline teeth

48:外部花鍵傳動表面 48: External spline drive surface

48A:徑向最外邊緣 48A: Radial outermost edge

48B:徑向最內邊緣 48B: Radial innermost edge

50:外部花鍵非傳動表面 50: External spline non-drive surface

50A:徑向最外邊緣 50A: Radial outermost edge

50B:徑向最內邊緣 50B: Radial innermost edge

50R:參考點 50R: Reference point

52:額外外部花鍵齒 52: Extra external spline teeth

54:額外基座支撐件 54: Additional Base Supports

56:鏈輪支撐件 56: sprocket support

58:間隔件 58: spacer

58A:第一間隔件 58A: first spacer

58B:第二間隔件 58B: second spacer

58C:第三間隔件 58C: third spacer

58D:第四間隔件 58D: fourth spacer

58E:第五間隔件 58E: fifth spacer

58F:第六間隔件 58F: sixth spacer

58G:第七間隔件 58G: seventh spacer

59A:第一環 59A: First ring

59B:第二環 59B: Second ring

60:輪轂嚙合部分 60: hub engagement part

62:支撐臂 62: Support arm

62A:第一附接部分 62A: first attachment part

62B:第二附接部分 62B: Second attachment part

62C:第三附接部分 62C: Third attachment part

62D:第四附接部分 62D: Fourth attachment part

62E:第五附接部分 62E: Fifth attachment part

62F:第六附接部分 62F: Sixth attachment part

62G:第七附接部分 62G: Seventh attachment part

62H:第八附接部分 62H: Eighth attachment part

64:內部花鍵齒 64: Internal spline teeth

64A:徑向最內端 64A: Radial innermost end

64G:溝槽 64G: Groove

66:內部花鍵傳動表面 66: Internal spline drive surface

66A:徑向最外邊緣 66A: Radial outermost edge

66B:徑向最內邊緣 66B: Radial innermost edge

68:內部花鍵非傳動表面 68: Internal spline non-drive surface

68A:徑向最外邊緣 68A: Radial outermost edge

68B:徑向最內邊緣 68B: Radial innermost edge

68R:參考點 68R: Reference point

70:內部花鍵齒 70: Internal spline teeth

72:內部花鍵齒 72: Internal spline teeth

74:內部花鍵齒 74: Internal spline teeth

76:內部花鍵齒 76: Internal spline teeth

78:內部花鍵齒 78: Internal spline teeth

80:第一棘輪構件 80: first ratchet member

80A:第一棘輪齒 80A: 1st ratchet tooth

80H:第二螺旋花鍵 80H: Second helical spline

80H1:螺旋內部花鍵齒 80H1: Helical internal spline teeth

80S:軸向表面 80S: axial surface

82:第二棘輪構件 82: second ratchet member

82A:第二棘輪齒 82A: second ratchet teeth

82E:輪轂主體嚙合部分 82E: hub body engaging part

82P:外周邊表面 82P: Outer peripheral surface

82S:軸向表面 82S: axial surface

82T:突起部 82T: protrusion

84:偏置構件 84: Offset member

84A:捲曲主體 84A: curly body

84B:連接端 84B: Connecting end

86:間隔件 86: spacer

86A:中間部分 86A: middle part

86B:連接部分 86B: Connection part

88:支撐構件 88: Support member

90:滑動構件 90: sliding member

92:額外偏置構件 92: Extra offset member

94:收納構件 94: storage components

96:軸向收納部分 96:Axial storage part

98:徑向收納部分 98: radial storage part

100:密封結構 100: sealed structure

102:內部空間 102: Internal space

236:輪轂主體 236: hub body

236A:第一輪輻安裝部分 236A: First spoke installation part

236A2:第一凹槽 236A2: first groove

236B:第二輪輻安裝部分 236B: Second spoke installation part

236B2:第二凹槽 236B2: second groove

A1:旋轉中心軸線 A1: Rotation center axis

AG11:第一外部花鍵表面角 AG11: First external spline surface angle

AG12:第二外部花鍵表面角 AG12: Second external spline surface angle

AG21:第一內部花鍵表面角 AG21: First internal spline surface angle

AG22:第二內部花鍵表面角 AG22: Second internal spline surface angle

AG28:鈍角 AG28: obtuse angle

AL1:第一軸向長度 AL1: first axial length

AL2:第二軸向長度 AL2: second axial length

AL3:鏈輪配置軸向長度 AL3: Axial length of sprocket arrangement

AL4:額外軸向長度 AL4: Extra axial length

AL5:較大直徑軸向長度 AL5: Larger diameter axial length

BF:自行車框架 BF: Bike Frame

BF1:第一框架 BF1: First frame

BF2:第二框架 BF2: Second Frame

BF11:第一凹槽 BF11: First Groove

BF12:第一部分 BF12: Part 1

BF21:第二凹槽 BF21: Second groove

BF22:第二部分 BF22: Part Two

CL1:圓周齒尖中心線 CL1: Circumferential tooth tip centerline

CL2:圓周齒尖中心線 CL2: Circumferential tooth tip centerline

CP1:圓周中心點 CP1: circle center point

CP2:圓周中心點 CP2: circle center point

CPL:軸向中心平面 CPL: axial center plane

D1:圓周方向 D1: Circumferential direction

D2:軸向方向 D2: axial direction

D11:傳動旋轉方向 D11: Transmission rotation direction

D12:反向旋轉方向 D12: reverse direction of rotation

D21:第一軸向方向 D21: The first axial direction

D22:第二軸向方向 D22: Second axial direction

DM11:外部花鍵頂徑 DM11: Top diameter of external spline

DM12:外部花鍵底徑 DM12: Bottom diameter of external spline

DM13:外徑 DM13: outer diameter

DM14:額外外部花鍵頂徑 DM14: Extra external spline top diameter

DM21:內部花鍵頂徑 DM21: Internal spline top diameter

DM22:內部花鍵底徑 DM22: Bottom diameter of internal spline

DM236A:第一外徑 DM236A: First outer diameter

DM236B:第二外徑 DM236B: second outer diameter

F1:傳動旋轉力 F1: transmission rotational force

F2:推力 F2: Thrust

F3:推力 F3: Thrust

F5:偏置力 F5: bias force

F6:旋轉摩擦力 F6: Rotational friction

IV-IV:線 IV-IV: line

L11:第一徑向線 L11: first radial line

L12:第二徑向線 L12: second radial line

L21:第一徑向線 L21: first radial line

L22:第二徑向線 L22: second radial line

MW1:圓周最大寬度 MW1: the maximum width of the circumference

MW2:圓周最大寬度 MW2: the maximum width of the circumference

PA11:第一外部周節角 PA11: First outer pitch angle

PA12:第二外部周節角 PA12: second outer pitch angle

PA21:第一內部周節角 PA21: First internal pitch angle

PA22:第二內部周節角 PA22: second internal pitch angle

RC11:第一參考圓 RC11: First reference circle

RC12:外部花鍵齒根圓 RC12: external spline root circle

RC21:第二參考圓 RC21: Second reference circle

RC22:內部花鍵齒根圓 RC22: Internal spline root circle

RL11:徑向長度 RL11: radial length

RL12:額外徑向長度 RL12: Extra radial length

RL21:徑向長度 RL21: radial length

RL22:額外徑向長度 RL22: Extra radial length

SK1:第一輪輻 SK1: first spoke

SK2:第二輪輻 SK2: Second spoke

SP1:鏈輪 SP1: sprocket

SP1A:鏈輪主體 SP1A: Sprocket body

SP1B:鏈輪齒 SP1B: sprocket teeth

SP2:鏈輪 SP2: sprocket

SP2A:鏈輪主體 SP2A: Sprocket body

SP2B:鏈輪齒 SP2B: sprocket teeth

SP3:鏈輪 SP3: Sprocket

SP3A:鏈輪主體 SP3A: Sprocket body

SP3B:鏈輪齒 SP3B: sprocket teeth

SP4:鏈輪 SP4: Sprocket

SP4A:鏈輪主體 SP4A: Sprocket body

SP4B:鏈輪齒 SP4B: sprocket teeth

SP5:鏈輪 SP5: sprocket

SP5A:鏈輪主體 SP5A: Sprocket body

SP5B:鏈輪齒 SP5B: sprocket teeth

SP6:鏈輪 SP6: sprocket

SP6A:鏈輪主體 SP6A: Sprocket body

SP6B:鏈輪齒 SP6B: sprocket teeth

SP7:鏈輪 SP7: Sprocket

SP7A:鏈輪主體 SP7A: Sprocket body

SP7B:鏈輪齒 SP7B: sprocket teeth

SP8:鏈輪 SP8: Sprocket

SP8A:鏈輪主體 SP8A: Sprocket body

SP8B:鏈輪齒 SP8B: sprocket teeth

SP9:鏈輪 SP9: Sprocket

SP9A:鏈輪主體 SP9A: Sprocket body

SP9B:鏈輪齒 SP9B: sprocket teeth

SP10:鏈輪 SP10: Sprocket

SP10A:鏈輪主體 SP10A: Sprocket body

SP10B:鏈輪齒 SP10B: sprocket teeth

SP11:鏈輪 SP11: Sprocket

SP11A:鏈輪主體 SP11A: Sprocket body

SP11B:鏈輪齒 SP11B: sprocket teeth

SP12:鏈輪 SP12: Sprocket

SP12A:鏈輪主體 SP12A: Sprocket body

SP12B:鏈輪齒 SP12B: sprocket teeth

T1:踩踏扭矩 T1: pedaling torque

T2:惰轉扭矩 T2: idle torque

WS:車輪緊固結構 WS: wheel fastening structure

WS1:緊固桿 WS1: fastening rod

XVI-XVI:線 XVI-XVI: Line

XXIII-XXIII:線 XXIII-XXIII: Line

XXXVIII-XXXVIII:線 XXXVIII-XXXVIII: line

當結合附圖考慮時，參考以下詳細描述，本發明之更完整評價及其許多伴隨優點將易於獲得，同樣變得更好理解，其中：圖1為根據第一實施例之自行車傳動系統的示意圖。 A more complete appreciation of the invention and its many attendant advantages will be readily obtained, and likewise better understood, with reference to the following detailed description when considered in conjunction with the accompanying drawings, in which: FIG. 1 is a schematic diagram of a bicycle drivetrain according to a first embodiment .

圖2為圖1中所說明之自行車傳動系統的分解透視圖。 FIG. 2 is an exploded perspective view of the bicycle drivetrain illustrated in FIG. 1. FIG.

圖3為圖2中所說明之自行車傳動系統的另一透視圖。 FIG. 3 is another perspective view of the bicycle drivetrain illustrated in FIG. 2 .

圖4為沿圖2之線IV-IV截取之自行車傳動系統的橫截面圖。 4 is a cross-sectional view of the bicycle transmission system taken along line IV-IV of FIG. 2 .

圖5為圖2中所說明之自行車傳動系統之自行車輪轂總成的分解透視圖。 FIG. 5 is an exploded perspective view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2. FIG.

圖6為圖4中所說明之自行車傳動系統的放大橫截面圖。 FIG. 6 is an enlarged cross-sectional view of the bicycle drivetrain illustrated in FIG. 4. FIG.

圖7為圖2中所說明之自行車傳動系統之自行車輪轂總成之鏈輪支撐主體的透視圖。 7 is a perspective view of the sprocket support body of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .

圖8為圖2中所說明之自行車傳動系統之自行車輪轂總成之鏈輪支撐主體的另一透視圖。 8 is another perspective view of the sprocket support body of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .

圖9為圖7中所說明之鏈輪支撐主體的側視圖。 FIG. 9 is a side view of the sprocket support body illustrated in FIG. 7 .

圖10為根據修改之自行車輪轂總成之鏈輪支撐主體的側視圖。 Fig. 10 is a side view of a sprocket supporting body of a bicycle hub assembly according to a modification.

圖11為圖7中所說明之鏈輪支撐主體的放大橫截面圖。 FIG. 11 is an enlarged cross-sectional view of the sprocket support body illustrated in FIG. 7 .

圖12為圖7中所說明之鏈輪支撐主體的橫截面圖。 12 is a cross-sectional view of the sprocket support body illustrated in FIG. 7 .

圖13為圖2中所說明之自行車傳動系統之自行車輪轂總成的透視圖。 FIG. 13 is a perspective view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .

圖14為圖2中所說明之自行車傳動系統之自行車輪轂總成的側視圖。 FIG. 14 is a side view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2 .

圖15為圖2中所說明之自行車傳動系統之自行車輪轂總成的後視圖。 FIG. 15 is a rear view of the bicycle hub assembly of the bicycle drivetrain illustrated in FIG. 2. FIG.

圖16為沿圖5之線XVI-XVI截取之自行車輪轂總成的橫截面圖。 Fig. 16 is a cross-sectional view of the bicycle hub assembly taken along line XVI-XVI of Fig. 5 .

圖17為圖2中所說明之自行車傳動系統之自行車後鏈輪總成的側視圖。 17 is a side view of the bicycle rear sprocket assembly of the bicycle drivetrain illustrated in FIG. 2 .

圖18為圖17中所說明之自行車後鏈輪總成的分解透視圖。 FIG. 18 is an exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖19為圖17中所說明之自行車後鏈輪總成的部分分解透視圖。 FIG. 19 is a partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖20為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 20 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖21為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 21 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖22為圖17中所說明之自行車後鏈輪總成的另一部分分解透視圖。 FIG. 22 is another partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖23為沿圖17之線XXIII-XXIII截取之自行車後鏈輪總成的透視橫截面圖。 23 is a perspective cross-sectional view of the bicycle rear sprocket assembly taken along line XXIII-XXIII of FIG. 17 .

圖24為圖17中所說明之自行車後鏈輪總成之最小鏈輪的透視圖。 24 is a perspective view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖25為圖17中所說明之自行車後鏈輪總成之最小鏈輪的另一透視圖。 25 is another perspective view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖26為圖17中所說明之自行車後鏈輪總成之最小鏈輪的側視圖。 FIG. 26 is a side view of the smallest sprocket of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖27為根據修改之最小鏈輪的側視圖。 Fig. 27 is a side view of the smallest sprocket according to the modification.

圖28為圖24中所說明之最小鏈輪的放大橫截面圖。 FIG. 28 is an enlarged cross-sectional view of the smallest sprocket illustrated in FIG. 24. FIG.

圖29為圖24中所說明之最小鏈輪的橫截面圖。 FIG. 29 is a cross-sectional view of the smallest sprocket illustrated in FIG. 24. FIG.

圖30為圖2中所說明之自行車傳動系統之鏈輪支撐主體及最小鏈輪的橫截面圖。 30 is a cross-sectional view of the sprocket support body and smallest sprocket of the bicycle drivetrain illustrated in FIG. 2 .

圖31為圖17中所說明之自行車後鏈輪總成的部分分解透視圖。 FIG. 31 is a partially exploded perspective view of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖32為圖17中所說明之自行車後鏈輪總成之鏈輪支撐件的透視圖。 32 is a perspective view of a sprocket support of the bicycle rear sprocket assembly illustrated in FIG. 17. FIG.

圖33為圖5中所說明之自行車輪轂總成之一部分的分解透視圖。 FIG. 33 is an exploded perspective view of a portion of the bicycle hub assembly illustrated in FIG. 5. FIG.

圖34為圖33中所說明之自行車輪轂總成之一部分的分解透視圖。 FIG. 34 is an exploded perspective view of a portion of the bicycle hub assembly illustrated in FIG. 33. FIG.

圖35為圖33中所說明之自行車輪轂總成之一部分的分解透視圖。 FIG. 35 is an exploded perspective view of a portion of the bicycle hub assembly illustrated in FIG. 33. FIG.

圖36為圖33中所說明之自行車輪轂總成之一部分的分解透視圖。 FIG. 36 is an exploded perspective view of a portion of the bicycle hub assembly illustrated in FIG. 33. FIG.

圖37為圖33中所說明之自行車輪轂總成的部分橫截面圖。 FIG. 37 is a partial cross-sectional view of the bicycle hub assembly illustrated in FIG. 33. FIG.

圖38為沿圖37之線XXXVIII-XXXVIII截取之自行車輪轂總成的橫截面圖。 38 is a cross-sectional view of the bicycle hub assembly taken along line XXXVIII-XXXVIII of FIG. 37 .

圖39為圖33中所說明之自行車輪轂總成之間隔件的透視圖。 FIG. 39 is a perspective view of a spacer between the bicycle hub assembly illustrated in FIG. 33. FIG.

圖40為圖33中所說明之自行車輪轂總成之間隔件的透視圖。 FIG. 40 is a perspective view of a spacer between the bicycle hub assembly illustrated in FIG. 33. FIG.

圖41為展示圖33中所說明之自行車輪轂總成之第一棘輪構件及鏈輪支撐主體之作用(踩踏)的示意圖。 Fig. 41 is a schematic view showing the function (pedaling) of the first ratchet member and the sprocket supporting body of the bicycle hub assembly illustrated in Fig. 33 .

圖42為展示圖33中所說明之自行車輪轂總成之第一棘輪構件及鏈輪支撐主體之作用(惰轉)的示意圖。 Fig. 42 is a schematic view showing the function (idling) of the first ratchet member and the sprocket supporting body of the bicycle hub assembly illustrated in Fig. 33 .

圖43為根據第二實施例之自行車輪轂總成的透視圖。 Fig. 43 is a perspective view of a bicycle hub assembly according to a second embodiment.

圖44為圖43中所說明之自行車輪轂總成的側視圖。 FIG. 44 is a side view of the bicycle hub assembly illustrated in FIG. 43. FIG.

圖45為根據第一及第二實施例之修改之鏈輪支撐主體的放大橫截面圖。 Fig. 45 is an enlarged cross-sectional view of the sprocket supporting body according to a modification of the first and second embodiments.

圖46為根據第一及第二實施例之修改之最小鏈輪的放大橫截面圖。 Fig. 46 is an enlarged cross-sectional view of the smallest sprocket according to a modification of the first and second embodiments.

相關申請案之交叉參考 Cross References to Related Applications

本申請案為2017年5月30日申請之美國專利申請案第15/608,915號之部分接續申請案。該申請案之內容以全文引用之方式併入本文中。 This application is a continuation-in-part of U.S. Patent Application Serial No. 15/608,915 filed on May 30, 2017. The content of this application is incorporated herein by reference in its entirety.

現將參看附圖描述實施例，其中相似參考數字指定在各種圖式中之對應或相同元件。 Embodiments will now be described with reference to the drawings, wherein like reference numerals designate corresponding or identical elements in the various views.

第一實施例 first embodiment

首先參考圖1，根據第一實施例之自行車傳動系統10包含自行車輪轂總成12及自行車後鏈輪總成14。自行車輪轂總成12緊固至自行車框架BF。自行車後鏈輪總成14安裝於自行車輪轂總成12上。自行車制動轉子16安裝於自行車輪轂總成12上。 Referring first to FIG. 1 , a bicycle transmission system 10 according to a first embodiment includes a bicycle hub assembly 12 and a bicycle rear sprocket assembly 14 . The bicycle hub assembly 12 is fastened to the bicycle frame BF. The bicycle rear sprocket assembly 14 is installed on the bicycle hub assembly 12. The bicycle brake rotor 16 is installed on the bicycle hub assembly 12 .

自行車傳動系統10進一步包含曲柄總成18及自行車鏈條20。曲柄總成18包括曲柄軸22、右曲柄臂24、左曲柄臂26及前鏈輪27。右曲柄臂24及左曲柄臂26緊固至曲柄軸22。前鏈輪27緊固至曲柄軸22及右曲柄臂24中之至少一者。自行車鏈條20與前鏈輪27及自行車後鏈輪總成14嚙合以將踩踏力自前鏈輪27傳輸至自行車後鏈輪總成14。曲柄總成18包括前鏈輪27作為所說明實施例中之單一鏈輪。然而，曲柄總成18可包括複數個前鏈輪。自行車後鏈輪總成14為後鏈輪總成。然而，自行車後鏈輪總成14之結構可應用於前鏈輪。 The bicycle transmission system 10 further includes a crank assembly 18 and a bicycle chain 20 . The crank assembly 18 includes a crankshaft 22 , a right crank arm 24 , a left crank arm 26 and a front sprocket 27 . Right crank arm 24 and left crank arm 26 are secured to crankshaft 22 . Front sprocket 27 is secured to at least one of crankshaft 22 and right crank arm 24 . The bicycle chain 20 meshes with the front sprocket 27 and the bicycle rear sprocket assembly 14 to transmit the pedaling force from the front sprocket 27 to the bicycle rear sprocket assembly 14 . Crank assembly 18 includes front sprocket 27 as a single sprocket in the illustrated embodiment. However, crank assembly 18 may include a plurality of front sprockets. The bicycle rear sprocket assembly 14 is the rear sprocket assembly. However, the structure of the bicycle rear sprocket assembly 14 can be applied to the front sprocket.

在本申請案中，以下方向性術語「前」、「後」、「向前」、「向後」、「左」、「右」、「橫向」、「向上」及「向下」以及任何其他類似方向性術語係指基於坐在自行車之車座(未展示)上且面向把手(未展示)的使用者(例如，騎乘者)而判定之彼等方向。因此，此等術語在用以描述自行車傳動系統10、自行車輪轂總成12或自行車後鏈輪總成14時，應關於配備有如在水平表面上在直立騎乘位置中所使用之自行車傳動系統10、自行車輪轂總成12或自行車後鏈輪總成14的自行車而加以解譯。 In this application, the following directional terms "front", "rear", "forward", "backward", "left", "right", "lateral", "upward" and "downward" and any other Similar directional terms refer to those directions determined based on a user (eg, rider) sitting on the saddle (not shown) of the bicycle and facing the handlebars (not shown). Accordingly, these terms, when used to describe the bicycle drivetrain 10, the bicycle hub assembly 12, or the bicycle rear sprocket assembly 14, shall refer to the bicycle drivetrain 10 equipped as used in an upright riding position on a horizontal surface. , bicycle hub assembly 12 or the bicycle of bicycle rear sprocket assembly 14 and explain.

如圖2及圖3中所見，自行車輪轂總成12及自行車後鏈輪總成14具有 旋轉中心軸線A1。自行車後鏈輪總成14相對於自行車框架BF(圖1)圍繞旋轉中心軸線A1由自行車輪轂總成12可旋轉地支撐。自行車後鏈輪總成14經構形以與自行車鏈條20嚙合，從而在踩踏期間在自行車鏈條20與自行車後鏈輪總成14之間傳輸傳動旋轉力F1。在踩踏期間，自行車後鏈輪總成14在傳動旋轉方向D11上圍繞旋轉中心軸線A1旋轉。傳動旋轉方向D11係沿自行車輪轂總成12或自行車後鏈輪總成14之圓周方向D1界定。反向旋轉方向D12為傳動旋轉方向D11之相反方向，且係沿圓周方向D1界定。 As seen in Fig. 2 and Fig. 3, bicycle hub assembly 12 and rear sprocket wheel assembly 14 of bicycle have Rotate the central axis A1. The bicycle rear sprocket assembly 14 is rotatably supported by the bicycle hub assembly 12 about a rotational center axis A1 relative to the bicycle frame BF ( FIG. 1 ). The bicycle rear sprocket assembly 14 is configured to engage a bicycle chain 20 to transmit a transmission rotational force F1 between the bicycle chain 20 and the bicycle rear sprocket assembly 14 during pedaling. During pedaling, the bicycle rear sprocket assembly 14 rotates about the rotation center axis A1 in the transmission rotation direction D11. The transmission rotation direction D11 is defined along the circumferential direction D1 of the bicycle hub assembly 12 or the bicycle rear sprocket assembly 14 . The counter-rotational direction D12 is the opposite direction of the drive rotation direction D11 and is defined along the circumferential direction D1.

如圖2中所見，自行車輪轂總成12包含鏈輪支撐主體28。自行車後鏈輪總成14安裝於鏈輪支撐主體28上以在鏈輪支撐主體28與自行車後鏈輪總成14之間傳輸傳動旋轉力F1。自行車輪轂總成12包含輪轂軸30。鏈輪支撐主體28圍繞旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。自行車輪轂總成12包含鎖環32。鎖環32緊固至鏈輪支撐主體28以在平行於旋轉中心軸線A1之軸向方向D2上相對於鏈輪支撐主體28固持自行車後鏈輪總成14。 As seen in FIG. 2 , the bicycle hub assembly 12 includes a sprocket support body 28 . The bicycle rear sprocket assembly 14 is mounted on the sprocket support body 28 to transmit the transmission rotational force F1 between the sprocket support body 28 and the bicycle rear sprocket assembly 14 . The bicycle hub assembly 12 includes a hub axle 30 . The sprocket support body 28 is rotatably mounted on the hub shaft 30 around the rotation center axis A1. The bicycle hub assembly 12 includes a lock ring 32 . A lock ring 32 is secured to the sprocket support body 28 to retain the bicycle rear sprocket assembly 14 relative to the sprocket support body 28 in an axial direction D2 parallel to the rotational center axis A1 .

如圖4中所見，自行車輪轂總成12藉由車輪緊固結構WS緊固至自行車框架BF。輪轂軸30具有通孔30A。車輪緊固結構WS之緊固桿WS1延伸穿過輪轂軸30之通孔30A。輪轂軸30包括第一軸端30B及第二軸端30C。輪轂軸30沿旋轉中心軸線A1在第一軸端30B與第二軸端30C之間延伸。第一軸端30B設置於自行車框架BF之第一框架BF1之第一凹槽BF11中。第二軸端30C設置於自行車框架BF之第二框架BF2之第二凹槽BF21中。輪轂軸30藉由車輪緊固結構WS固持於第一框架BF1與第二框架BF2之間。車輪緊固結構WS包括在所申請之自行車中已知的結構。因此，出於簡潔 起見，此處將不作詳細描述。 As seen in FIG. 4 , the bicycle hub assembly 12 is fastened to the bicycle frame BF by the wheel fastening structure WS. The hub shaft 30 has a through hole 30A. The fastening rod WS1 of the wheel fastening structure WS extends through the through hole 30A of the hub shaft 30 . The hub shaft 30 includes a first shaft end 30B and a second shaft end 30C. The hub shaft 30 extends along the rotation center axis A1 between the first shaft end 30B and the second shaft end 30C. The first shaft end 30B is disposed in the first groove BF11 of the first frame BF1 of the bicycle frame BF. The second shaft end 30C is disposed in the second groove BF21 of the second frame BF2 of the bicycle frame BF. The hub axle 30 is held between the first frame BF1 and the second frame BF2 by the wheel fastening structure WS. The wheel fastening structure WS includes structures known in the bicycle of the application. Therefore, for brevity For the sake of reason, it will not be described in detail here.

如圖4及圖5中所見，自行車輪轂總成12進一步包含制動轉子支撐主體34。制動轉子支撐主體34圍繞旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。制動轉子支撐主體34耦接至自行車制動轉子16(圖1)以將制動旋轉力自自行車制動轉子16傳輸至制動轉子支撐主體34。 As seen in FIGS. 4 and 5 , the bicycle hub assembly 12 further includes a brake rotor support body 34 . The brake rotor supporting body 34 is rotatably mounted on the hub axle 30 around the rotation center axis A1. The brake rotor support body 34 is coupled to the bicycle brake rotor 16 ( FIG. 1 ) to transmit braking rotational force from the bicycle brake rotor 16 to the brake rotor support body 34 .

如圖5中所見，自行車輪轂總成12包含輪轂主體36。輪轂主體36圍繞自行車輪轂總成12之旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。在此實施例中，鏈輪支撐主體28為來自輪轂主體36之單獨構件。制動轉子支撐主體34與輪轂主體36一體地設置為單件式整體構件。然而，鏈輪支撐主體28可與輪轂主體36一體地設置。制動轉子支撐主體34可為來自輪轂主體36之單獨構件。 As seen in FIG. 5 , the bicycle hub assembly 12 includes a hub body 36 . The hub main body 36 is rotatably mounted on the hub axle 30 around the rotation center axis A1 of the bicycle hub assembly 12 . In this embodiment, the sprocket support body 28 is a separate component from the hub body 36 . The brake rotor support body 34 is provided integrally with the hub body 36 as a one-piece unitary member. However, the sprocket support body 28 may be provided integrally with the hub body 36 . The brake rotor support body 34 may be a separate component from the hub body 36 .

鎖環32包括外部帶螺紋部分32A。鏈輪支撐主體28包括內部帶螺紋部分28A。在鎖環32緊固至鏈輪支撐主體28之狀態中，外部帶螺紋部分32A與內部帶螺紋部分28A螺紋嚙合。 Lock ring 32 includes an external threaded portion 32A. The sprocket support body 28 includes an internally threaded portion 28A. In the state where the lock ring 32 is fastened to the sprocket support body 28, the outer threaded portion 32A is in threaded engagement with the inner threaded portion 28A.

如圖6中所見，自行車輪轂總成12包含自由輪結構38。鏈輪支撐主體28藉由自由輪結構38可操作地耦接至輪轂主體36。自由輪結構38經構形以將鏈輪支撐主體28耦接至輪轂主體36，從而在踩踏期間使鏈輪支撐主體28連同輪轂主體36在傳動旋轉方向D11(圖5)上旋轉。自由輪結構38經構形以允許鏈輪支撐主體28在惰轉期間在反向旋轉方向D12(圖5)上相對於輪轂主體36旋轉。因此，自由輪結構38可解釋為單向聯軸結構38。稍後將詳細描述自由輪結構38。 As seen in FIG. 6 , the bicycle hub assembly 12 includes a freewheel structure 38 . The sprocket support body 28 is operably coupled to the hub body 36 by a freewheel structure 38 . The freewheel structure 38 is configured to couple the sprocket support body 28 to the hub body 36 to rotate the sprocket support body 28 together with the hub body 36 in the drive rotation direction D11 ( FIG. 5 ) during pedaling. The freewheel structure 38 is configured to allow the sprocket support body 28 to rotate relative to the hub body 36 in a counter-rotational direction D12 ( FIG. 5 ) during idling. Therefore, the freewheel structure 38 can be interpreted as a one-way coupling structure 38 . The freewheel structure 38 will be described in detail later.

自行車輪轂總成12包括第一軸承39A及第二軸承39B。第一軸承39A及第二軸承39B設置於鏈輪支撐主體28與輪轂軸30之間以圍繞旋轉中心軸 線A1相對於輪轂軸30可旋轉地支撐鏈輪支撐主體28。 The bicycle hub assembly 12 includes a first bearing 39A and a second bearing 39B. The first bearing 39A and the second bearing 39B are disposed between the sprocket supporting body 28 and the hub shaft 30 so as to surround the central axis of rotation The wire A1 rotatably supports the sprocket support body 28 with respect to the hub shaft 30 .

在此實施例中，鏈輪支撐主體28、制動轉子支撐主體34及輪轂主體36中之每一者由諸如鋁、鐵或鈦之金屬材料製成。然而，鏈輪支撐主體28、制動轉子支撐主體34及輪轂主體36中之至少一者可由非金屬材料製成。 In this embodiment, each of the sprocket support body 28, the brake rotor support body 34, and the hub body 36 is made of a metal material such as aluminum, iron or titanium. However, at least one of the sprocket support body 28, the brake rotor support body 34, and the hub body 36 may be made of a non-metallic material.

如圖7及圖8中所見，鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之至少一個外部花鍵齒40。鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之複數個外部花鍵齒40。亦即，至少一個外部花鍵齒40包括複數個外部花鍵齒40。鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之至少九個外部花鍵齒40。鏈輪支撐主體28包括經構形以與自行車後鏈輪總成14(圖6)嚙合之至少十個外部花鍵齒40。 As seen in FIGS. 7 and 8 , the sprocket support body 28 includes at least one external spline tooth 40 configured to engage the bicycle rear sprocket assembly 14 ( FIG. 6 ). The sprocket support body 28 includes a plurality of external spline teeth 40 configured to mesh with the bicycle rear sprocket assembly 14 ( FIG. 6 ). That is, at least one external spline tooth 40 includes a plurality of external spline teeth 40 . The sprocket support body 28 includes at least nine external spline teeth 40 configured to engage the bicycle rear sprocket assembly 14 ( FIG. 6 ). The sprocket support body 28 includes at least ten external spline teeth 40 configured to mesh with the bicycle rear sprocket assembly 14 ( FIG. 6 ).

鏈輪支撐主體28包括具有管狀形狀之基座支撐件41。基座支撐件41沿旋轉中心軸線A1延伸。外部花鍵齒40自基座支撐件41徑向向外延伸。鏈輪支撐主體28包括較大直徑部分42、凸緣44及複數個螺旋外部花鍵齒46。較大直徑部分42及凸緣44自基座支撐件41徑向向外延伸。較大直徑部分42在軸向方向D2上設置於複數個外部花鍵齒40與凸緣44之間。較大直徑部分42及凸緣44在軸向方向D2上設置於複數個外部花鍵齒40與複數個螺旋外部花鍵齒46之間。如圖6中所見，自行車後鏈輪總成14在軸向方向D2上固持於較大直徑部分42與鎖環32之鎖定凸緣32B之間。較大直徑部分42可具有內部空腔，使得諸如單向聯軸結構之傳動結構可容納於內部空腔內。根據需要，可自自行車輪轂總成12省略較大直徑部分42。 The sprocket support body 28 includes a base support 41 having a tubular shape. The base support 41 extends along the rotation center axis A1. External spline teeth 40 extend radially outward from base support 41 . The sprocket support body 28 includes a larger diameter portion 42 , a flange 44 and a plurality of helical outer spline teeth 46 . The larger diameter portion 42 and the flange 44 extend radially outward from the base support 41 . The larger diameter portion 42 is disposed between the plurality of outer spline teeth 40 and the flange 44 in the axial direction D2. The larger diameter portion 42 and the flange 44 are disposed between the plurality of outer spline teeth 40 and the plurality of helical outer spline teeth 46 in the axial direction D2. As seen in FIG. 6 , the bicycle rear sprocket assembly 14 is held between the larger diameter portion 42 and the locking flange 32B of the locking ring 32 in the axial direction D2 . The larger diameter portion 42 may have an internal cavity such that a transmission structure, such as a one-way coupling, may be accommodated within the internal cavity. The larger diameter portion 42 may be omitted from the bicycle hub assembly 12 as desired.

如圖9中所見，至少十個外部花鍵齒40之總數目等於或大於20。至少 十個外部花鍵齒40之總數目等於或大於25。在此實施例中，至少十個外部花鍵齒40之總數目為26。然而，外部花鍵齒40之總數目不限於此實施例及以上範圍。 As seen in FIG. 9 , the total number of at least ten external spline teeth 40 is equal to or greater than twenty. At least The total number of ten external spline teeth 40 is equal to or greater than twenty-five. In this embodiment, the total number of at least ten external spline teeth 40 is twenty-six. However, the total number of external spline teeth 40 is not limited to this embodiment and the above range.

至少十個外部花鍵齒40具有第一外部周節角PA11及第二外部周節角PA12。複數個外部花鍵齒40中之至少兩個外部花鍵齒相對於自行車輪轂總成12之旋轉中心軸線A1以第一外部周節角PA11沿圓周配置。複數個外部花鍵齒40中之至少兩個外部花鍵齒相對於自行車輪轂總成12之旋轉中心軸線A1以第二外部周節角PA12沿圓周配置。在此實施例中，第二外部周節角PA12不同於第一外部周節角PA11。然而，第二外部周節角PA12可實質上等於第一外部周節角PA11。 At least ten outer spline teeth 40 have a first outer circumferential pitch angle PA11 and a second outer circumferential pitch angle PA12. At least two of the plurality of external spline teeth 40 are arranged along the circumference at a first external pitch angle PA11 with respect to the rotation center axis A1 of the bicycle hub assembly 12 . At least two of the plurality of external spline teeth 40 are arranged along the circumference at a second external peripheral pitch angle PA12 with respect to the rotation center axis A1 of the bicycle hub assembly 12 . In this embodiment, the second outer pitch angle PA12 is different from the first outer pitch angle PA11. However, the second outer pitch angle PA12 may be substantially equal to the first outer pitch angle PA11.

在此實施例中，外部花鍵齒40係在圓周方向D1上以第一外部周節角PA11配置。外部花鍵齒40中之兩個外部花鍵齒係在圓周方向D1上以第二外部周節角PA12配置。然而，外部花鍵齒40中之至少兩個外部花鍵齒可在圓周方向D1上以另一外部周節角配置。 In this embodiment, the outer spline teeth 40 are arranged at a first outer circumferential pitch angle PA11 in the circumferential direction D1. Two of the outer spline teeth 40 are arranged at a second outer circumferential pitch angle PA12 in the circumferential direction D1. However, at least two of the outer spline teeth 40 may be arranged at another outer circumferential pitch angle in the circumferential direction D1.

第一外部周節角PA11在10度至20度之範圍內。第一外部周節角PA11在12度至15度之範圍內。第一外部周節角PA11在13度至14度之範圍內。在此實施例中，第一外部周節角PA11為13.3度。然而，第一外部周節角PA11不限於此實施例及以上範圍。 The first outer pitch angle PA11 is in the range of 10 degrees to 20 degrees. The first outer pitch angle PA11 is in the range of 12 degrees to 15 degrees. The first outer pitch angle PA11 is in the range of 13 degrees to 14 degrees. In this embodiment, the first outer pitch angle PA11 is 13.3 degrees. However, the first outer pitch angle PA11 is not limited to this embodiment and the above range.

第二外部周節角PA12在5度至30度之範圍內。在此實施例中，第二外部周節角PA12為26度。然而，第二外部周節角PA12不限於此實施例及以上範圍。 The second outer peripheral pitch angle PA12 is in the range of 5 degrees to 30 degrees. In this embodiment, the second outer peripheral pitch angle PA12 is 26 degrees. However, the second outer peripheral pitch angle PA12 is not limited to this embodiment and the above range.

外部花鍵齒40具有實質上彼此相同的形狀。外部花鍵齒40具有實質上彼此相同的花鍵大小。當沿旋轉中心軸線A1檢視時，外部花鍵齒40具 有實質上彼此相同的輪廓。然而，如圖10中所見，至少十個外部花鍵齒40中之至少一者可具有不同於至少十個外部花鍵齒40中之另一者之第二花鍵形狀的第一花鍵形狀。至少十個外部花鍵齒40中之至少一者可具有不同於至少十個外部花鍵齒40中之另一者之第二花鍵大小的第一花鍵大小。當沿旋轉中心軸線A1檢視時，至少十個外部花鍵齒40中之至少一者可具有不同於至少十個外部花鍵齒40中之另一者之輪廓的輪廓。在圖10中，外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之花鍵形狀的花鍵形狀。外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之花鍵大小的花鍵大小。當沿旋轉中心軸線A1檢視時，外部花鍵齒40中之一者具有不同於外部花鍵齒40中之其他齒之輪廓的輪廓。 The external spline teeth 40 have substantially the same shape as each other. The external spline teeth 40 have substantially the same spline size as one another. When viewed along the axis of rotation A1, the outer spline teeth 40 have have substantially the same profiles as each other. However, as seen in FIG. 10 , at least one of the at least ten external spline teeth 40 may have a first spline shape different from the second spline shape of another of the at least ten external spline teeth 40 . At least one of the at least ten external spline teeth 40 may have a first spline size that is different from a second spline size of another of the at least ten external spline teeth 40 . At least one of the at least ten external spline teeth 40 may have a different profile than another of the at least ten external spline teeth 40 when viewed along the rotational center axis A1 . In FIG. 10 , one of the external spline teeth 40 has a spline shape different from that of the other of the external spline teeth 40 . One of the outer spline teeth 40 has a different spline size than the other of the outer spline teeth 40 . One of the outer spline teeth 40 has a different profile than the other of the outer spline teeth 40 when viewed along the rotational center axis A1 .

如圖11中所見，至少十個外部花鍵齒40中之每一者具有外部花鍵傳動表面48及外部花鍵非傳動表面50。至少一個外部花鍵齒40包括複數個外部花鍵齒，該複數個外部花鍵齒包括用以在踩踏期間接收來自自行車後鏈輪總成14(圖6)之傳動旋轉力F1的複數個外部花鍵傳動表面48。複數個外部花鍵齒40包括複數個外部花鍵非傳動表面50。外部花鍵傳動表面48可與自行車後鏈輪總成14接觸以在踩踏期間接收來自自行車後鏈輪總成14(圖6)之傳動旋轉力F1。外部花鍵傳動表面48面向反向旋轉方向D12。外部花鍵非傳動表面50在圓周方向D1上設置於外部花鍵傳動表面48之反向側上。外部花鍵非傳動表面50面向傳動旋轉方向D11，從而在踩踏期間不接收來自自行車後鏈輪總成14之傳動旋轉力F1。 As seen in FIG. 11 , each of the at least ten external spline teeth 40 has an external spline drive surface 48 and an external spline non-drive surface 50 . The at least one external spline tooth 40 includes a plurality of external spline teeth including a plurality of external spline teeth for receiving transmission rotational force F1 from the bicycle rear sprocket assembly 14 ( FIG. 6 ) during pedaling. Splined drive surface 48 . The plurality of external spline teeth 40 includes a plurality of external spline non-drive surfaces 50 . The external splined drive surface 48 can contact the bicycle rear sprocket assembly 14 to receive the drive rotational force F1 from the bicycle rear sprocket assembly 14 ( FIG. 6 ) during pedaling. The external spline drive surface 48 faces in the counter-rotational direction D12. The external spline non-transmission surface 50 is disposed on the opposite side of the external spline transmission surface 48 in the circumferential direction D1. The external splined non-drive surface 50 faces the drive rotation direction D11 so as not to receive the drive rotation force F1 from the bicycle rear sprocket assembly 14 during pedaling.

至少十個外部花鍵齒40分別具有圓周最大寬度MW1。外部花鍵齒40分別具有圓周最大寬度MW1。圓周最大寬度MW1定義為接收施加至外部花鍵齒40之推力F2的最大寬度。圓周最大寬度MW1定義為基於外部花鍵 傳動表面48之直線距離。 At least ten external spline teeth 40 each have a circumferential maximum width MW1. The outer spline teeth 40 each have a maximum circumferential width MW1. The circumferential maximum width MW1 is defined as the maximum width receiving the thrust F2 applied to the external spline teeth 40 . Circumferential maximum width MW1 is defined based on external spline The linear distance of the driving surface 48.

複數個外部花鍵傳動表面48各自包括徑向最外邊緣48A及徑向最內邊緣48B。外部花鍵傳動表面48自徑向最外邊緣48A延伸至徑向最內邊緣48B。第一參考圓RC11界定於徑向最內邊緣48B上且以旋轉中心軸線A1為中心。第一參考圓RC11與外部花鍵非傳動表面50在參考點50R處相交。圓周最大寬度MW1在圓周方向D1上自徑向最內邊緣48B直線延伸至參考點50R。 The plurality of outer splined drive surfaces 48 each include a radially outermost edge 48A and a radially innermost edge 48B. The outer splined drive surface 48 extends from a radially outermost edge 48A to a radially innermost edge 48B. The first reference circle RC11 is defined on the radially innermost edge 48B and centered on the rotation central axis A1. The first reference circle RC11 intersects the outer splined non-drive surface 50 at a reference point 50R. The circumferential maximum width MW1 extends linearly from the radially innermost edge 48B to the reference point 50R in the circumferential direction D1.

複數個外部花鍵非傳動表面50各自包括徑向最外邊緣50A及徑向最內邊緣50B。外部花鍵非傳動表面50自徑向最外邊緣50A延伸至徑向最內邊緣50B。參考點50R設置於徑向最外邊緣50A與徑向最內邊緣50B之間。然而，參考點50R可與徑向最內邊緣50B重合。 The plurality of external splined non-drive surfaces 50 each include a radially outermost edge 50A and a radially innermost edge 50B. The outer splined non-drive surface 50 extends from a radially outermost edge 50A to a radially innermost edge 50B. The reference point 50R is disposed between the radially outermost edge 50A and the radially innermost edge 50B. However, the reference point 50R may coincide with the radially innermost edge 50B.

圓周最大寬度MW1之總和等於或大於55mm。圓周最大寬度MW1之總和等於或大於60mm。圓周最大寬度MW1之總和等於或大於65mm。在此實施例中，圓周最大寬度MW1之總和為68mm。然而，圓周最大寬度MW1之總和不限於此實施例及以上範圍。 The sum of the maximum circumferential widths MW1 is equal to or greater than 55 mm. The sum of the maximum circumferential widths MW1 is equal to or greater than 60 mm. The sum of the maximum circumferential widths MW1 is equal to or greater than 65 mm. In this embodiment, the sum of the maximum circumferential widths MW1 is 68 mm. However, the sum of the maximum circumferential widths MW1 is not limited to this embodiment and the above range.

如圖12中所見，至少一個外部花鍵齒40具有外部花鍵頂徑DM11。外部花鍵頂徑DM11等於或大於25mm。外部花鍵頂徑DM11等於或大於29mm。外部花鍵頂徑DM11等於或小於30mm。在此實施例中，外部花鍵頂徑DM11為29.6mm。然而，外部花鍵頂徑DM11不限於此實施例及以上範圍。 As seen in Fig. 12, at least one external spline tooth 40 has an external spline top diameter DM11. External spline top diameter DM11 is equal to or greater than 25mm. External spline top diameter DM11 is equal to or greater than 29mm. External spline top diameter DM11 is equal to or less than 30mm. In this embodiment, the external spline top diameter DM11 is 29.6 mm. However, the external spline top diameter DM11 is not limited to this embodiment and the above range.

至少一個外部花鍵齒40具有外部花鍵底徑DM12。至少一個外部花鍵齒40具有外部花鍵齒根圓RC12，外部花鍵齒根圓RC12具有外部花鍵底徑DM12。然而，外部花鍵齒根圓RC12可具有不同於外部花鍵底徑DM12之 另一直徑。外部花鍵底徑DM12等於或小於28mm。外部花鍵底徑DM12等於或大於25mm。外部花鍵底徑DM12等於或大於27mm。在此實施例中，外部花鍵底徑DM12為27.2mm。然而，外部花鍵底徑DM12不限於此實施例及以上範圍。 At least one external spline tooth 40 has an external spline base diameter DM12. At least one external spline tooth 40 has an external spline root circle RC12 having an external spline base diameter DM12. However, the external spline root circle RC12 may have a different diameter than the external spline base diameter DM12. another diameter. External spline bottom diameter DM12 is equal to or less than 28mm. External spline bottom diameter DM12 is equal to or greater than 25mm. External spline bottom diameter DM12 is equal to or greater than 27mm. In this embodiment, the external spline base diameter DM12 is 27.2mm. However, the external spline bottom diameter DM12 is not limited to this embodiment and the above range.

較大直徑部分42具有大於外部花鍵頂徑DM11之外徑DM13。外徑DM13在32mm至40mm之範圍內。在此實施例中，外徑DM13為35mm。然而，外徑DM13不限於此實施例。 The larger diameter portion 42 has an outer diameter DM13 that is larger than the outer spline top diameter DM11. The outer diameter DM13 is in the range of 32mm to 40mm. In this embodiment, the outer diameter DM13 is 35mm. However, the outer diameter DM13 is not limited to this embodiment.

如圖11中所見，複數個外部花鍵傳動表面48各自包括自徑向最外邊緣48A至徑向最內邊緣48B界定之徑向長度RL11。複數個外部花鍵傳動表面48之徑向長度RL11之總和等於或大於7mm。徑向長度RL11之總和等於或大於10mm。徑向長度RL11之總和等於或大於15mm。在此實施例中，徑向長度RL11之總和為19.5mm。然而，徑向長度RL11之總和不限於此實施例。 As seen in FIG. 11 , the plurality of outer splined drive surfaces 48 each include a radial length RL11 defined from a radially outermost edge 48A to a radially innermost edge 48B. The sum of the radial lengths RL11 of the plurality of external spline transmission surfaces 48 is equal to or greater than 7mm. The sum of the radial lengths RL11 is equal to or greater than 10 mm. The sum of the radial lengths RL11 is equal to or greater than 15 mm. In this embodiment, the sum of the radial lengths RL11 is 19.5 mm. However, the sum of the radial lengths RL11 is not limited to this embodiment.

複數個外部花鍵齒40具有額外徑向長度RL12。額外徑向長度RL12分別自外部花鍵齒根圓RC12至複數個外部花鍵齒40之徑向最外端40A界定。額外徑向長度RL12之總和等於或大於12mm。在此實施例中，額外徑向長度RL12之總和為31.85mm。然而，額外徑向長度RL12之總和不限於此實施例。 The plurality of external spline teeth 40 has an additional radial length RL12. The additional radial lengths RL12 are respectively defined from the outer spline root circle RC12 to the radially outermost ends 40A of the plurality of outer spline teeth 40 . The sum of the extra radial lengths RL12 is equal to or greater than 12 mm. In this embodiment, the sum of the additional radial lengths RL12 is 31.85 mm. However, the sum of the additional radial lengths RL12 is not limited to this embodiment.

至少九個外部花鍵齒40中之至少一者相對於圓周齒尖中心線CL1具有不對稱形狀。圓周齒尖中心線CL1為連接旋轉中心軸線A1與外部花鍵齒40之徑向最外端40A之圓周中心點CP1的線。然而，外部花鍵齒40中之至少一者可相對於圓周齒尖中心線CL1具有對稱形狀。至少九個外部花鍵齒40中之至少一者包含外部花鍵傳動表面48及外部花鍵非傳動表面50。 At least one of the at least nine external spline teeth 40 has an asymmetric shape with respect to the circumferential tooth tip centerline CL1. The circumferential tooth tip centerline CL1 is a line connecting the rotation center axis A1 and the circumferential center point CP1 of the radially outermost end 40A of the external spline tooth 40 . However, at least one of the outer spline teeth 40 may have a symmetrical shape with respect to the circumferential tooth tip centerline CL1. At least one of the at least nine external spline teeth 40 includes an external spline drive surface 48 and an external spline non-drive surface 50 .

外部花鍵傳動表面48具有第一外部花鍵表面角AG11。第一外部花鍵表面角AG11界定於外部花鍵傳動表面48與第一徑向線L11之間。第一徑向線L11自自行車輪轂總成12之旋轉中心軸線A1延伸至外部花鍵傳動表面48之徑向最外邊緣48A。第一外部周節角PA11或第二外部周節角PA12界定於相鄰第一徑向線L11(參見例如圖9)之間。 The outer splined drive surface 48 has a first outer splined surface angle AG11. A first outer spline surface angle AG11 is defined between the outer spline drive surface 48 and the first radial line L11. The first radial line L11 extends from the central axis of rotation A1 of the bicycle hub assembly 12 to the radially outermost edge 48A of the outer splined drive surface 48 . The first outer circumferential pitch angle PA11 or the second outer circumferential pitch angle PA12 is defined between adjacent first radial lines L11 (see, eg, FIG. 9 ).

外部花鍵非傳動表面50具有第二外部花鍵表面角AG12。第二外部花鍵表面角AG12界定於外部花鍵非傳動表面50與第二徑向線L12之間。第二徑向線L12自自行車輪轂總成12之旋轉中心軸線A1延伸至外部花鍵非傳動表面50之徑向最外邊緣50A。 External splined non-drive surface 50 has a second external splined surface angle AG12. A second external spline surface angle AG12 is defined between the external spline non-drive surface 50 and the second radial line L12. The second radial line L12 extends from the central axis of rotation A1 of the bicycle hub assembly 12 to the radially outermost edge 50A of the outer splined non-transmission surface 50 .

在此實施例中，第二外部花鍵表面角AG12不同於第一外部花鍵表面角AG11。第一外部花鍵表面角AG11小於第二外部花鍵表面角AG12。然而，第一外部花鍵表面角AG11可等於或大於第二外部花鍵表面角AG12。 In this embodiment, the second external spline surface angle AG12 is different from the first external spline surface angle AG11. The first external spline surface angle AG11 is smaller than the second external spline surface angle AG12. However, the first external spline surface angle AG11 may be equal to or greater than the second external spline surface angle AG12.

第一外部花鍵表面角AG11在0度至10度之範圍內。第二外部花鍵表面角AG12在0度至60度之範圍內。在此實施例中，第一外部花鍵表面角AG11為5度。第二外部花鍵表面角AG12為45度。然而，第一外部花鍵表面角AG11及第二外部花鍵表面角AG12不限於此實施例及以上範圍。 The first external spline surface angle AG11 is in the range of 0° to 10°. The second external spline surface angle AG12 is in the range of 0 degrees to 60 degrees. In this embodiment, the first external spline surface angle AG11 is 5 degrees. The second external spline surface angle AG12 is 45 degrees. However, the first external spline surface angle AG11 and the second external spline surface angle AG12 are not limited to this embodiment and the above range.

如圖13及圖14中所見，制動轉子支撐主體34包括經構形以與自行車制動轉子16(圖4)嚙合之至少一個額外外部花鍵齒52。在此實施例中，制動轉子支撐主體34包括額外基座支撐件54及複數個額外外部花鍵齒52。額外基座支撐件54具有管狀形狀，且沿旋轉中心軸線A1自輪轂主體36延伸。額外外部花鍵齒52自額外基座支撐件54徑向向外延伸。額外外部花鍵齒52之總數目為52。然而，額外外部花鍵齒52之總數目不限於此實施例。 As seen in FIGS. 13 and 14 , the brake rotor support body 34 includes at least one additional external spline tooth 52 configured to engage the bicycle brake rotor 16 ( FIG. 4 ). In this embodiment, the brake rotor support body 34 includes an additional base support 54 and a plurality of additional external spline teeth 52 . The additional base support 54 has a tubular shape and extends from the hub body 36 along the rotational center axis A1. Additional external spline teeth 52 extend radially outward from an additional base support 54 . The total number of additional external spline teeth 52 is fifty-two. However, the total number of additional external spline teeth 52 is not limited to this embodiment.

如圖14中所見，至少一個額外外部花鍵齒52具有額外外部花鍵頂徑DM14。如圖15中所見，額外外部花鍵頂徑DM14大於外部花鍵頂徑DM11。額外外部花鍵頂徑DM14實質上等於較大直徑部分42之外徑DM13。然而，額外外部花鍵頂徑DM14可等於或小於外部花鍵頂徑DM11。額外外部花鍵頂徑DM14可不同於較大直徑部分42之外徑DM13。 As seen in Figure 14, at least one additional external spline tooth 52 has an additional external spline top diameter DM14. As seen in FIG. 15 , the extra external spline top diameter DM14 is larger than the external spline top diameter DM11 . The additional outer spline top diameter DM14 is substantially equal to the outer diameter DM13 of the larger diameter portion 42 . However, the additional external spline top diameter DM14 may be equal to or smaller than the external spline top diameter DM11. The additional outer spline top diameter DM14 may be different from the larger diameter portion 42 outer diameter DM13 .

如圖15中所見，輪轂主體36包括第一輪輻安裝部分36A及第二輪輻安裝部分36B。複數個第一輪輻SK1耦接至第一輪輻安裝部分36A。複數個第二輪輻SK2耦接至第二輪輻安裝部分36B。在此實施例中，第一輪輻安裝部分36A包括複數個第一附接孔36A1。第一輪輻SK1延伸穿過第一附接孔36A1。第二輪輻安裝部分36B包括複數個第二附接孔36B1。第二輪輻SK2延伸穿過第二附接孔36B1。如本文中所使用，術語「輪輻安裝部分」涵蓋輪輻安裝開口具有凸緣狀形狀以使得輪輻安裝部分相對於如圖15中所見之自行車輪轂總成之旋轉中心軸線徑向向外延伸的構形，及輪輻安裝部分為直接形成於輪轂主體之徑向外周邊表面上之開口的構形。 As seen in FIG. 15 , the hub body 36 includes a first spoke mounting portion 36A and a second spoke mounting portion 36B. A plurality of first spokes SK1 are coupled to the first spoke mounting portion 36A. A plurality of second spokes SK2 are coupled to the second spoke mounting portion 36B. In this embodiment, the first spoke mounting portion 36A includes a plurality of first attachment holes 36A1. The first spoke SK1 extends through the first attachment hole 36A1. The second spoke mounting portion 36B includes a plurality of second attachment holes 36B1. The second spoke SK2 extends through the second attachment hole 36B1. As used herein, the term "spoke mounting portion" encompasses configurations in which the spoke mounting opening has a flange-like shape such that the spoke mounting portion extends radially outward relative to the central axis of rotation of the bicycle hub assembly as seen in FIG. 15 , and the spoke mounting portion is a configuration of an opening formed directly on the radially outer peripheral surface of the hub main body.

第二輪輻安裝部分36B在軸向方向D2上與第一輪輻安裝部分36A間隔開。第一輪輻安裝部分36A在軸向方向D2上設置於鏈輪支撐主體28與第二輪輻安裝部分36B之間。第二輪輻安裝部分36B在軸向方向D2上設置於第一輪輻安裝部分36A與制動轉子支撐主體34之間。 The second spoke mounting portion 36B is spaced apart from the first spoke mounting portion 36A in the axial direction D2. The first spoke mounting portion 36A is disposed between the sprocket support body 28 and the second spoke mounting portion 36B in the axial direction D2. The second spoke mounting portion 36B is disposed between the first spoke mounting portion 36A and the brake rotor supporting body 34 in the axial direction D2.

第一輪輻安裝部分36A具有第一軸向最外部分36C。第二輪輻安裝部分36B具有第二軸向最外部分36D。第一軸向最外部分36C包括在自行車輪轂總成12安裝至自行車框架BF之狀態中在軸向方向D2上面朝第一框架BF1的表面。第二軸向最外部分36D包括在自行車輪轂總成12安裝至自行 車框架BF之狀態中在軸向方向D2上面朝第二框架BF2的表面。 The first spoke mounting portion 36A has a first axially outermost portion 36C. The second spoke mounting portion 36B has a second axially outermost portion 36D. The first axially outermost portion 36C includes a surface facing the first frame BF1 in the axial direction D2 in the state where the bicycle hub assembly 12 is mounted to the bicycle frame BF. The second axially outermost portion 36D includes the bicycle hub assembly 12 mounted to the bicycle The state of the vehicle frame BF faces the surface of the second frame BF2 in the axial direction D2.

輪轂主體36包括第一軸向長度AL1。第一軸向長度AL1在相對於旋轉中心軸線A1之軸向方向D2上界定於第一輪輻安裝部分36A之第一軸向最外部分36C與第二輪輻安裝部分36B之第二軸向最外部分36D之間。第一軸向長度AL1可等於或大於55mm。第一軸向長度AL1可等於或小於80mm。第一軸向長度AL1可等於或大於60mm。第一軸向長度AL1可等於或大於65mm。第一軸向長度AL1可為67mm。然而，第一軸向長度AL1不限於此實施例及以上範圍。第一軸向長度AL1之實例包括55.7mm、62.3mm及67mm。 Hub body 36 includes a first axial length AL1. The first axial length AL1 is defined between the first axially outermost portion 36C of the first spoke mounting portion 36A and the second axially outermost portion of the second spoke mounting portion 36B in the axial direction D2 relative to the rotation center axis A1. between outer portions 36D. The first axial length AL1 may be equal to or greater than 55mm. The first axial length AL1 may be equal to or less than 80 mm. The first axial length AL1 may be equal to or greater than 60mm. The first axial length AL1 may be equal to or greater than 65mm. The first axial length AL1 may be 67mm. However, the first axial length AL1 is not limited to this embodiment and the above range. Examples of the first axial length AL1 include 55.7mm, 62.3mm and 67mm.

如圖15中所見，輪轂軸30包括第一軸向框架鄰接表面30B1及第二軸向框架鄰接表面30C1。第一軸向框架鄰接表面30B1經構形以在自行車輪轂總成12安裝至自行車框架BF之狀態中在軸向方向D2上鄰接自行車框架BF之第一部分BF12。第二軸向框架鄰接表面30C1經構形以在自行車輪轂總成12安裝至自行車框架BF之狀態中在軸向方向D2上鄰接自行車框架BF之第二部分BF22。相比於第二軸向框架鄰接表面30C1，第一軸向框架鄰接表面30B1經定位成在軸向方向D2上更接近鏈輪支撐主體28。鏈輪支撐主體28在軸向方向D2上設置於第一軸向框架鄰接表面30B1與第二軸向框架鄰接表面30C1之間。 As seen in FIG. 15 , the hub axle 30 includes a first axial frame abutment surface 30B1 and a second axial frame abutment surface 30C1 . The first axial frame abutment surface 30B1 is configured to abut the first portion BF12 of the bicycle frame BF in the axial direction D2 in the state where the bicycle hub assembly 12 is mounted to the bicycle frame BF. The second axial frame abutment surface 30C1 is configured to abut the second portion BF22 of the bicycle frame BF in the axial direction D2 in the state where the bicycle hub assembly 12 is mounted to the bicycle frame BF. The first axial frame abutment surface 30B1 is positioned closer to the sprocket support body 28 in the axial direction D2 than the second axial frame abutment surface 30C1 . The sprocket support body 28 is disposed between the first axial frame abutment surface 30B1 and the second axial frame abutment surface 30C1 in the axial direction D2.

輪轂軸30包括第二軸向長度AL2。第二軸向長度AL2在軸向方向D2上界定於第一軸向框架鄰接表面30B1與第二軸向框架鄰接表面30C1之間。第二軸向長度AL2可等於或大於140mm。第二軸向長度AL2可等於或小於160mm。第二軸向長度AL2可等於或大於145mm。第二軸向長度AL2可等於或大於147mm。第二軸向長度AL2可為148mm。然而，第二 軸向長度AL2不限於此實施例及以上範圍。第二軸向長度AL2之實例包括142mm、148mm及157mm。 Hub axle 30 includes a second axial length AL2. A second axial length AL2 is defined in the axial direction D2 between the first axial frame abutment surface 30B1 and the second axial frame abutment surface 30C1 . The second axial length AL2 may be equal to or greater than 140mm. The second axial length AL2 may be equal to or less than 160mm. The second axial length AL2 may be equal to or greater than 145mm. The second axial length AL2 may be equal to or greater than 147mm. The second axial length AL2 may be 148mm. However, the second The axial length AL2 is not limited to this embodiment and the above range. Examples of the second axial length AL2 include 142mm, 148mm and 157mm.

第一軸向長度AL1對第二軸向長度AL2之比率可等於或大於0.3。第一軸向長度AL1對第二軸向長度AL2之比率可等於或大於0.4。第一軸向長度AL1對第二軸向長度AL2之比率可等於或小於0.5。舉例而言，第一軸向長度AL1(67mm)對第二軸向長度AL2(148mm)之比率為大致0.45。然而，第一軸向長度AL1對第二軸向長度AL2之比率不限於此實施例及以上範圍。第一軸向長度AL1對第二軸向長度AL2之比率的實例包括大致0.42(AL1為62.3mm，且AL2為148mm)，或包括大致0.39(AL1為55.7mm，且AL2為142mm)。 A ratio of the first axial length AL1 to the second axial length AL2 may be equal to or greater than 0.3. A ratio of the first axial length AL1 to the second axial length AL2 may be equal to or greater than 0.4. A ratio of the first axial length AL1 to the second axial length AL2 may be equal to or less than 0.5. For example, the ratio of the first axial length AL1 (67 mm) to the second axial length AL2 (148 mm) is approximately 0.45. However, the ratio of the first axial length AL1 to the second axial length AL2 is not limited to this embodiment and the above range. Examples of the ratio of the first axial length AL1 to the second axial length AL2 include approximately 0.42 (AL1 is 62.3 mm and AL2 is 148 mm), or approximately 0.39 (AL1 is 55.7 mm and AL2 is 142 mm).

如圖16中所見，鏈輪支撐主體28包括第一軸向端28B、第二軸向端28C及軸向鏈輪鄰接表面28D。第二軸向端28C在軸向方向D2上與第一軸向端28B相對。自行車輪轂總成12具有在軸向方向D2上將自行車輪轂總成12二等分之軸向中心平面CPL。相比於第一軸向端28B，軸向鏈輪鄰接件表面28D經定位成在軸向方向D2上更接近自行車輪轂總成12之軸向中心平面CPL。相比於軸向鏈輪鄰接表面28D，第二軸向端28C經定位成在軸向方向D2上更接近自行車輪轂總成12之軸向中心平面CPL。自行車輪轂總成12之軸向中心平面CPL垂直於旋轉中心軸線A1。在此實施例中，軸向鏈輪鄰接表面28D設置於較大直徑部分42上，然而軸向鏈輪鄰接表面28D可根據需要設置於自行車輪轂總成12之其他部分上。在自行車後鏈輪總成14安裝於鏈輪支撐主體28上之狀態中，軸向鏈輪鄰接表面28D與自行車後鏈輪總成14接觸。軸向鏈輪鄰接表面28D在軸向方向D2上面向第一軸向端28B。 As seen in FIG. 16 , the sprocket support body 28 includes a first axial end 28B, a second axial end 28C, and an axial sprocket abutment surface 28D. The second axial end 28C is opposed to the first axial end 28B in the axial direction D2. The bicycle hub assembly 12 has an axial center plane CPL that bisects the bicycle hub assembly 12 in the axial direction D2. Axial sprocket abutment surface 28D is positioned closer to axial center plane CPL of bicycle hub assembly 12 in axial direction D2 than first axial end 28B. The second axial end 28C is positioned closer to the axial center plane CPL of the bicycle hub assembly 12 in the axial direction D2 than the axial sprocket abutment surface 28D. The axial center plane CPL of the bicycle hub assembly 12 is perpendicular to the rotation center axis A1. In this embodiment, the axial sprocket abutment surface 28D is provided on the larger diameter portion 42 , however the axial sprocket abutment surface 28D may be provided on other portions of the bicycle hub assembly 12 as desired. The axial sprocket abutment surface 28D is in contact with the bicycle rear sprocket assembly 14 in a state where the bicycle rear sprocket assembly 14 is mounted on the sprocket support body 28 . The axial sprocket abutment surface 28D faces the first axial end 28B in the axial direction D2.

輪轂軸30包括鏈輪配置軸向長度AL3。鏈輪配置軸向長度AL3在軸向方向D2上界定於第一軸向框架鄰接表面30B1與鏈輪支撐主體28之軸向鏈輪鄰接表面28D之間。在此實施例中，鏈輪配置軸向長度AL3在35mm至45mm之範圍內。舉例而言，鏈輪配置軸向長度AL3為39.64mm。鏈輪配置軸向長度AL3亦可例如藉由省略較大直徑部分42而延伸達至44.25mm。然而，鏈輪配置軸向長度AL3不限於此實施例及以上範圍。 Hub axle 30 includes a sprocket configuration axial length AL3. The sprocket arrangement axial length AL3 is defined in the axial direction D2 between the first axial frame abutment surface 30B1 and the axial sprocket abutment surface 28D of the sprocket support body 28 . In this embodiment, the sprocket arrangement axial length AL3 is in the range of 35 mm to 45 mm. For example, the axial length AL3 of the sprocket configuration is 39.64mm. The sprocket arrangement axial length AL3 can also be extended up to 44.25 mm, eg by omitting the larger diameter portion 42 . However, the sprocket configuration axial length AL3 is not limited to this embodiment and the above range.

較大直徑部分42具有在軸向方向D2上離第一軸向框架鄰接表面30B1最遠之軸向端42A。額外軸向長度AL4係在軸向方向D2上自第一軸向框架鄰接表面30B1至軸向端42A界定。額外軸向長度AL4在38mm至47mm之範圍內。額外軸向長度AL4可在44mm至45mm之範圍內。額外軸向長度AL4亦可在40mm至41mm之範圍內。在此實施例中，額外軸向長度AL4為44.25mm。然而，額外軸向長度AL4不限於此實施例及以上範圍。 The larger diameter portion 42 has an axial end 42A furthest from the first axial frame abutment surface 30B1 in the axial direction D2. The additional axial length AL4 is defined in the axial direction D2 from the first axial frame abutment surface 30B1 to the axial end 42A. The additional axial length AL4 is in the range of 38mm to 47mm. The additional axial length AL4 may be in the range of 44mm to 45mm. The additional axial length AL4 may also be in the range of 40 mm to 41 mm. In this embodiment, the additional axial length AL4 is 44.25mm. However, the additional axial length AL4 is not limited to this embodiment and the above range.

較大直徑部分42之較大直徑軸向長度AL5在3mm至6mm之範圍內。在此實施例中，較大直徑軸向長度AL5為4.61mm。然而，較大直徑軸向長度AL5不限於此實施例及以上範圍。 The larger diameter axial length AL5 of the larger diameter portion 42 is in the range of 3 mm to 6 mm. In this embodiment, the major diameter axial length AL5 is 4.61 mm. However, the larger diameter axial length AL5 is not limited to this embodiment and the above range.

第一軸向長度AL1對鏈輪配置軸向長度AL3之比率在1.2至1.7之範圍內。舉例而言，若第一軸向長度AL1為55.7mm且鏈輪配置軸向長度AL3為39.64mm，則第一軸向長度AL1對鏈輪配置軸向長度AL3之比率為1.4。然而，第一軸向長度AL1對鏈輪配置軸向長度AL3之比率不限於此實施例及以上範圍。舉例而言，若第一軸向長度AL1為62.3mm且鏈輪配置軸向長度AL3為39.64mm，則第一軸向長度AL1對鏈輪配置軸向長度AL3之比率可為1.57，或若第一軸向長度AL1為67mm且鏈輪配置軸向長度AL3為39.64mm，則第一軸向長度AL1對鏈輪配置軸向長度AL3之比率 可為1.69。 The ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 is in the range of 1.2 to 1.7. For example, if the first axial length AL1 is 55.7 mm and the sprocket arrangement axial length AL3 is 39.64 mm, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 is 1.4. However, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 is not limited to this embodiment and the above scope. For example, if the first axial length AL1 is 62.3 mm and the sprocket arrangement axial length AL3 is 39.64 mm, the ratio of the first axial length AL1 to the sprocket arrangement axial length AL3 may be 1.57, or if the first The first axial length AL1 is 67mm and the sprocket configuration axial length AL3 is 39.64mm, then the ratio of the first axial length AL1 to the sprocket configuration axial length AL3 Can be 1.69.

如圖17中所見，自行車後鏈輪總成14包含至少一個鏈輪。至少一個鏈輪包括最小鏈輪SP1及最大鏈輪SP12。最小鏈輪SP1亦可被稱作鏈輪SP1。最大鏈輪SP12亦可被稱作鏈輪SP12。在此實施例中，至少一個鏈輪進一步包括鏈輪SP2至SP11。鏈輪SP1對應於高速齒輪。鏈輪SP12對應於低速齒輪。自行車後鏈輪總成14之鏈輪之總數目不限於此實施例。 As seen in FIG. 17, the bicycle rear sprocket assembly 14 includes at least one sprocket. The at least one sprocket includes a smallest sprocket SP1 and a largest sprocket SP12. The smallest sprocket SP1 may also be referred to as sprocket SP1. The largest sprocket SP12 may also be referred to as sprocket SP12. In this embodiment, the at least one sprocket further includes sprockets SP2 to SP11. The sprocket SP1 corresponds to a high speed gear. The sprocket SP12 corresponds to a low gear. The total number of sprockets of the bicycle rear sprocket assembly 14 is not limited to this embodiment.

最小鏈輪SP1包括至少一個鏈輪齒SP1B。最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目等於或小於10。在此實施例中，最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目為10。然而，最小鏈輪SP1之至少一個鏈輪齒SP1B之總數目不限於此實施例及以上範圍。 The smallest sprocket SP1 includes at least one sprocket tooth SP1B. The total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is equal to or less than ten. In this embodiment, the total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is ten. However, the total number of at least one sprocket tooth SP1B of the smallest sprocket SP1 is not limited to this embodiment and the above scope.

最大鏈輪SP12包括至少一個鏈輪齒SP12B。最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目等於或大於46。最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目等於或大於50。在此實施例中，最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目為51。然而，最大鏈輪SP12之至少一個鏈輪齒SP12B之總數目不限於此實施例及以上範圍。 The largest sprocket SP12 includes at least one sprocket tooth SP12B. The total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is equal to or greater than 46. The total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is equal to or greater than 50. In this embodiment, the total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is fifty-one. However, the total number of at least one sprocket tooth SP12B of the largest sprocket SP12 is not limited to this embodiment and the above scope.

鏈輪SP2包括至少一個鏈輪齒SP2B。鏈輪SP3包括至少一個鏈輪齒SP3B。鏈輪SP4包括至少一個鏈輪齒SP4B。鏈輪SP5包括至少一個鏈輪齒SP5B。鏈輪SP6包括至少一個鏈輪齒SP6B。鏈輪SP7包括至少一個鏈輪齒SP7B。鏈輪SP8包括至少一個鏈輪齒SP8B。鏈輪SP9包括至少一個鏈輪齒SP9B。鏈輪SP10包括至少一個鏈輪齒SP10B。鏈輪SP11包括至少一個鏈輪齒SP11B。 The sprocket SP2 includes at least one sprocket tooth SP2B. The sprocket SP3 includes at least one sprocket tooth SP3B. The sprocket SP4 includes at least one sprocket tooth SP4B. The sprocket SP5 includes at least one sprocket tooth SP5B. The sprocket SP6 includes at least one sprocket tooth SP6B. The sprocket SP7 includes at least one sprocket tooth SP7B. The sprocket SP8 includes at least one sprocket tooth SP8B. The sprocket SP9 includes at least one sprocket tooth SP9B. The sprocket SP10 includes at least one sprocket tooth SP10B. The sprocket SP11 includes at least one sprocket tooth SP11B.

至少一個鏈輪齒SP2B之總數目為12。至少一個鏈輪齒SP3B之總數目為14。至少一個鏈輪齒SP4B之總數目為16。至少一個鏈輪齒SP5B之總數 目為18。至少一個鏈輪齒SP6B之總數目為21。至少一個鏈輪齒SP7B之總數目為24。至少一個鏈輪齒SP8B之總數目為28。至少一個鏈輪齒SP9B之總數目為33。至少一個鏈輪齒SP10B之總數目為39。至少一個鏈輪齒SP11B之總數目為45。鏈輪SP2至SP11中之每一者之鏈輪齒的總數目不限於此實施例。 The total number of at least one sprocket SP2B is twelve. The total number of at least one sprocket SP3B is fourteen. The total number of at least one sprocket SP4B is sixteen. Total number of at least one sprocket SP5B Mesh is 18. The total number of at least one sprocket SP6B is twenty-one. The total number of at least one sprocket SP7B is twenty-four. The total number of at least one sprocket SP8B is twenty-eight. The total number of at least one sprocket SP9B is thirty-three. The total number of at least one sprocket SP10B is thirty-nine. The total number of at least one sprocket SP11B is 45. The total number of sprocket teeth of each of the sprockets SP2 to SP11 is not limited to this embodiment.

如圖18中所見，鏈輪SP1至SP12為彼此分離的構件。然而，鏈輪SP1至SP12中之至少一者可至少部分地與鏈輪SP1至SP12中之另一者一體地設置。自行車後鏈輪總成14包含鏈輪支撐件56、複數個間隔件58、第一環59A及第二環59B。在所說明之實施例中，鏈輪SP1至SP12附接至鏈輪支撐件56。舉例而言，鏈輪SP1至SP12藉由諸如黏附劑之黏合結構附接至鏈輪支撐件56，使得歸因於不使用金屬緊固構件而可減輕自行車後鏈輪總成14之重量。 As seen in FIG. 18, the sprockets SP1 to SP12 are separate members from each other. However, at least one of the sprockets SP1 to SP12 may be provided at least partially integrally with the other of the sprockets SP1 to SP12. The bicycle rear sprocket assembly 14 includes a sprocket support 56 , a plurality of spacers 58 , a first ring 59A and a second ring 59B. In the illustrated embodiment, the sprockets SP1 - SP12 are attached to a sprocket support 56 . For example, the sprockets SP1 to SP12 are attached to the sprocket support 56 by an adhesive structure such as an adhesive, so that the weight of the bicycle rear sprocket assembly 14 can be reduced due to the absence of metal fastening members.

如圖19中所見，鏈輪SP1包括鏈輪主體SP1A及複數個鏈輪齒SP1B。複數個鏈輪齒SP1B自鏈輪主體SP1A徑向向外延伸。鏈輪SP2包括鏈輪主體SP2A及複數個鏈輪齒SP2B。複數個鏈輪齒SP2B自鏈輪主體SP2A徑向向外延伸。鏈輪SP3包括鏈輪主體SP3A及複數個鏈輪齒SP3B。複數個鏈輪齒SP3B自鏈輪主體SP3A徑向向外延伸。鏈輪SP4包括鏈輪主體SP4A及複數個鏈輪齒SP4B。複數個鏈輪齒SP4B自鏈輪主體SP4A徑向向外延伸。鏈輪SP5包括鏈輪主體SP5A及複數個鏈輪齒SP5B。複數個鏈輪齒SP5B自鏈輪主體SP5A徑向向外延伸。第一環59A設置於鏈輪SP3與鏈輪SP4之間。第二環59B設置於鏈輪SP4與鏈輪SP5之間。 As seen in FIG. 19 , the sprocket SP1 includes a sprocket body SP1A and a plurality of sprocket teeth SP1B. A plurality of sprocket teeth SP1B extend radially outward from the sprocket body SP1A. The sprocket SP2 includes a sprocket main body SP2A and a plurality of sprocket teeth SP2B. A plurality of sprocket teeth SP2B extend radially outward from the sprocket body SP2A. The sprocket SP3 includes a sprocket main body SP3A and a plurality of sprocket teeth SP3B. A plurality of sprocket teeth SP3B extend radially outward from the sprocket body SP3A. The sprocket SP4 includes a sprocket main body SP4A and a plurality of sprocket teeth SP4B. A plurality of sprocket teeth SP4B extend radially outward from the sprocket body SP4A. The sprocket SP5 includes a sprocket main body SP5A and a plurality of sprocket teeth SP5B. A plurality of sprocket teeth SP5B extend radially outward from the sprocket body SP5A. The first ring 59A is provided between the sprocket SP3 and the sprocket SP4. The second ring 59B is provided between the sprocket SP4 and the sprocket SP5.

如圖20中所見，鏈輪SP6包括鏈輪主體SP6A及複數個鏈輪齒SP6B。複數個鏈輪齒SP6B自鏈輪主體SP6A徑向向外延伸。鏈輪SP7包括鏈輪主 體SP7A及複數個鏈輪齒SP7B。複數個鏈輪齒SP7B自鏈輪主體SP7A徑向向外延伸。鏈輪SP8包括鏈輪主體SP8A及複數個鏈輪齒SP8B。複數個鏈輪齒SP8B自鏈輪主體SP8A徑向向外延伸。 As seen in FIG. 20, the sprocket SP6 includes a sprocket body SP6A and a plurality of sprocket teeth SP6B. A plurality of sprocket teeth SP6B extend radially outward from the sprocket body SP6A. Sprocket SP7 including sprocket master body SP7A and a plurality of sprocket teeth SP7B. A plurality of sprocket teeth SP7B extend radially outward from the sprocket body SP7A. The sprocket SP8 includes a sprocket main body SP8A and a plurality of sprocket teeth SP8B. A plurality of sprocket teeth SP8B extend radially outward from the sprocket body SP8A.

如圖21中所見，鏈輪SP9包括鏈輪主體SP9A及複數個鏈輪齒SP9B。複數個鏈輪齒SP9B自鏈輪主體SP9A徑向向外延伸。鏈輪SP10包括鏈輪主體SP10A及複數個鏈輪齒SP10B。複數個鏈輪齒SP10B自鏈輪主體SP10A徑向向外延伸。鏈輪SP11包括鏈輪主體SP11A及複數個鏈輪齒SP11B。複數個鏈輪齒SP11B自鏈輪主體SP11A徑向向外延伸。鏈輪SP12包括鏈輪主體SP12A及複數個鏈輪齒SP12B。複數個鏈輪齒SP12B自鏈輪主體SP12A徑向向外延伸。 As seen in FIG. 21 , the sprocket SP9 includes a sprocket body SP9A and a plurality of sprocket teeth SP9B. A plurality of sprocket teeth SP9B extend radially outward from the sprocket body SP9A. The sprocket SP10 includes a sprocket main body SP10A and a plurality of sprocket teeth SP10B. A plurality of sprocket teeth SP10B extend radially outward from the sprocket body SP10A. The sprocket SP11 includes a sprocket main body SP11A and a plurality of sprocket teeth SP11B. A plurality of sprocket teeth SP11B extend radially outward from the sprocket main body SP11A. The sprocket SP12 includes a sprocket main body SP12A and a plurality of sprocket teeth SP12B. A plurality of sprocket teeth SP12B extend radially outward from the sprocket body SP12A.

如圖22中所見，鏈輪支撐件56包括輪轂嚙合部分60及複數個支撐臂62。複數個支撐臂62自輪轂嚙合部分60徑向向外延伸。支撐臂62包括第一附接部分62A至第八附接部分62H。複數個間隔件58包括複數個第一間隔件58A、複數個第二間隔件58B、複數個第三間隔件58C、複數個第四間隔件58D、複數個第五間隔件58E、複數個第六間隔件58F及複數個第七間隔件58G。 As seen in FIG. 22 , the sprocket support 56 includes a hub engaging portion 60 and a plurality of support arms 62 . A plurality of support arms 62 extend radially outward from the hub engaging portion 60 . The support arm 62 includes a first attachment portion 62A to an eighth attachment portion 62H. The plurality of spacers 58 includes a plurality of first spacers 58A, a plurality of second spacers 58B, a plurality of third spacers 58C, a plurality of fourth spacers 58D, a plurality of fifth spacers 58E, and a plurality of sixth spacers. The spacer 58F and the plurality of seventh spacers 58G.

如圖23中所見，第一間隔件58A設置於鏈輪SP5與鏈輪SP6之間。第二間隔件58B設置於鏈輪SP6與鏈輪SP7之間。第三間隔件58C設置於鏈輪SP7與鏈輪SP8之間。第四間隔件58D設置於鏈輪SP8與鏈輪SP9之間。第五間隔件58E設置於鏈輪SP9與鏈輪SP10之間。第六間隔件58F設置於鏈輪SP10與鏈輪SP11之間。第七間隔件58G設置於鏈輪SP11與鏈輪SP12之間。 As seen in FIG. 23 , the first spacer 58A is disposed between the sprocket SP5 and the sprocket SP6 . The second spacer 58B is disposed between the sprocket SP6 and the sprocket SP7. The third spacer 58C is disposed between the sprocket SP7 and the sprocket SP8. The fourth spacer 58D is disposed between the sprocket SP8 and the sprocket SP9. The fifth spacer 58E is disposed between the sprocket SP9 and the sprocket SP10 . The sixth spacer 58F is disposed between the sprocket SP10 and the sprocket SP11. The seventh spacer 58G is provided between the sprocket SP11 and the sprocket SP12.

鏈輪SP6及第一間隔件58A藉由諸如黏附劑之黏合結構附接至第一附 接部分62A。鏈輪SP7及第二間隔件58B藉由諸如黏附劑之黏合結構附接至第二附接部分62B。鏈輪SP8及第三間隔件58C藉由諸如黏附劑之黏合結構附接至第三附接部分62C。鏈輪SP9及第四間隔件58D藉由諸如黏附劑之黏合結構附接至第四附接部分62D。鏈輪SP10及第五間隔件58E藉由諸如黏附劑之黏合結構附接至第五附接部分62E。鏈輪SP11及第六間隔件58F藉由諸如黏附劑之黏合結構附接至第六附接部分62F。鏈輪SP12及第七間隔件58G藉由諸如黏附劑之黏合結構附接至第七附接部分62G。鏈輪SP5及第二環59B藉由諸如黏附劑之黏合結構附接至第八附接部分62H。輪轂嚙合部分60、鏈輪SP1至SP4、第一環59A及第二環59B在軸向方向D2上固持於較大直徑部分42與鎖環32之鎖定凸緣32B之間。 The sprocket SP6 and the first spacer 58A are attached to the first attachment by an adhesive structure such as an adhesive. connect to part 62A. The sprocket SP7 and the second spacer 58B are attached to the second attachment portion 62B by an adhesive structure such as an adhesive. The sprocket SP8 and the third spacer 58C are attached to the third attaching portion 62C by an adhesive structure such as an adhesive. The sprocket SP9 and the fourth spacer 58D are attached to the fourth attaching portion 62D by an adhesive structure such as an adhesive. The sprocket SP10 and the fifth spacer 58E are attached to the fifth attaching portion 62E by an adhesive structure such as an adhesive. The sprocket SP11 and the sixth spacer 58F are attached to the sixth attachment portion 62F by an adhesive structure such as an adhesive. The sprocket SP12 and the seventh spacer 58G are attached to the seventh attaching portion 62G by an adhesive structure such as an adhesive. The sprocket SP5 and the second ring 59B are attached to the eighth attachment portion 62H by an adhesive structure such as an adhesive. The hub engaging portion 60 , the sprockets SP1 to SP4 , the first ring 59A and the second ring 59B are held between the larger diameter portion 42 and the locking flange 32B of the locking ring 32 in the axial direction D2 .

在此實施例中，鏈輪SP1至SP12中之每一者由諸如鋁、鐵或鈦之金屬材料製成。鏈輪支撐件56、第一間隔件58A至第七間隔件58G、第一環59A及第二環59B中之每一者由諸如樹脂材料之非金屬材料製成。然而，鏈輪SP1至SP12中之至少一者可至少部分地由非金屬材料製成。鏈輪支撐件56、第一間隔件58A至第七間隔件58G、第一環59A及第二環59B中之至少一者可至少部分地由諸如鋁、鐵或鈦之金屬材料製成。 In this embodiment, each of the sprockets SP1 to SP12 is made of a metal material such as aluminum, iron, or titanium. Each of the sprocket support 56 , the first spacer 58A to the seventh spacer 58G, the first ring 59A, and the second ring 59B is made of a non-metallic material such as a resin material. However, at least one of the sprockets SP1 to SP12 may be at least partially made of a non-metallic material. At least one of the sprocket support 56, the first spacer 58A to the seventh spacer 58G, the first ring 59A, and the second ring 59B may be at least partially made of a metallic material such as aluminum, iron, or titanium.

至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之至少一個內部花鍵齒。如圖24及圖25中所見，至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之至少十個內部花鍵齒。至少一個內部花鍵齒包括複數個內部花鍵齒。因此，至少一個鏈輪包括經構形以與自行車輪轂總成12嚙合之複數個內部花鍵齒。在此實施例中，鏈輪SP1包括經構形以與自行車輪轂總成12嚙合之至少十個內部花鍵齒64。在此實施例中，鏈輪SP1包括經構形以與自行車輪轂總成12之鏈輪支撐主體28之外部花鍵齒40嚙合的內 部花鍵齒64。鏈輪主體SP1A具有環狀形狀。內部花鍵齒64自鏈輪主體SP1A徑向向內延伸。 At least one sprocket includes at least one internal spline tooth configured to mesh with the bicycle hub assembly 12 . As seen in FIGS. 24 and 25 , at least one sprocket includes at least ten internal spline teeth configured to mesh with the bicycle hub assembly 12 . The at least one internal spline tooth includes a plurality of internal spline teeth. Accordingly, at least one sprocket includes a plurality of internal spline teeth configured to mesh with the bicycle hub assembly 12 . In this embodiment, the sprocket SP1 includes at least ten internal spline teeth 64 configured to mesh with the bicycle hub assembly 12 . In this embodiment, the sprocket SP1 includes an inner spline tooth 40 configured to engage the outer spline teeth 40 of the sprocket support body 28 of the bicycle hub assembly 12 . External spline teeth 64. The sprocket main body SP1A has an annular shape. Inner spline teeth 64 extend radially inwardly from sprocket body SP1A.

如圖26中所見，至少十個內部花鍵齒64之總數目等於或大於20。至少十個內部花鍵齒64之總數目等於或大於25。在此實施例中，內部花鍵齒64之總數目為26。然而，內部花鍵齒64之總數目不限於此實施例及以上範圍。 As seen in FIG. 26 , the total number of at least ten internal spline teeth 64 is equal to or greater than twenty. The total number of at least ten internal spline teeth 64 is equal to or greater than twenty-five. In this embodiment, the total number of internal spline teeth 64 is twenty-six. However, the total number of internal spline teeth 64 is not limited to this embodiment and above.

至少十個內部花鍵齒64具有第一內部周節角PA21及第二內部周節角PA22。複數個內部花鍵齒64中之至少兩個內部花鍵齒相對於自行車後鏈輪總成14之旋轉中心軸線A1以第一內部周節角PA21沿圓周配置。複數個內部花鍵齒64中之至少兩個內部花鍵齒相對於旋轉中心軸線A1以第二內部周節角PA22沿圓周配置。在此實施例中，第二內部周節角PA22不同於第一內部周節角PA21。然而，第二內部周節角PA22可實質上等於第一內部周節角PA21。 At least ten inner spline teeth 64 have a first inner circumferential pitch angle PA21 and a second inner circumferential pitch angle PA22. At least two of the plurality of internal spline teeth 64 are arranged along the circumference at a first internal circumferential pitch angle PA21 with respect to the rotation center axis A1 of the bicycle rear sprocket assembly 14 . At least two of the plurality of internal spline teeth 64 are circumferentially arranged at a second internal circumferential pitch angle PA22 with respect to the rotation center axis A1. In this embodiment, the second inner circumferential pitch angle PA22 is different from the first inner circumferential pitch angle PA21. However, the second inner circumferential pitch angle PA22 may be substantially equal to the first inner circumferential pitch angle PA21.

在此實施例中，內部花鍵齒64係在圓周方向D1上以第一內部周節角PA21沿圓周配置。內部花鍵齒64中之兩個內部花鍵齒係在圓周方向D1上以第二內部周節角PA22配置。然而，內部花鍵齒64中之至少兩個內部花鍵齒可在圓周方向D1上以另一內部周節角配置。 In this embodiment, the internal spline teeth 64 are circumferentially arranged at the first internal circumferential pitch angle PA21 in the circumferential direction D1. Two of the inner spline teeth 64 are arranged at a second inner circumferential pitch angle PA22 in the circumferential direction D1. However, at least two of the inner spline teeth 64 may be arranged at another inner circumferential pitch angle in the circumferential direction D1.

第一內部周節角PA21在10度至20度之範圍內。第一內部周節角PA21在12度至15度之範圍內。第一內部周節角PA21在13度至14度之範圍內。在此實施例中，第一內部周節角PA21為13.3度。然而，第一內部周節角PA21不限於此實施例及以上範圍。 The first inner circumferential pitch angle PA21 is in the range of 10 degrees to 20 degrees. The first inner circumferential pitch angle PA21 is in the range of 12 degrees to 15 degrees. The first inner circumferential pitch angle PA21 is in the range of 13 degrees to 14 degrees. In this embodiment, the first inner circumferential pitch angle PA21 is 13.3 degrees. However, the first internal pitch angle PA21 is not limited to this embodiment and the above range.

第二內部周節角PA22在5度至30度之範圍內。在此實施例中，第二內部周節角PA22為26度。然而，第二內部周節角PA22不限於此實施例及 以上範圍。 The second inner circumferential pitch angle PA22 is in the range of 5 degrees to 30 degrees. In this embodiment, the second inner circumferential pitch angle PA22 is 26 degrees. However, the second inner circumferential pitch angle PA22 is not limited to this embodiment and above range.

至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之第二花鍵形狀的第一花鍵形狀。至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之第二花鍵大小的第一花鍵大小。至少十個內部花鍵齒64中之至少一者具有不同於至少十個內部花鍵齒64中之另一者之橫截面形狀的橫截面形狀。然而，如圖27中所見，內部花鍵齒64可具有彼此相同的形狀。內部花鍵齒64可具有彼此相同的大小。內部花鍵齒64可具有彼此相同的橫截面形狀。 At least one of the at least ten internal spline teeth 64 has a first spline shape that is different from the second spline shape of another of the at least ten internal spline teeth 64 . At least one of the at least ten internal spline teeth 64 has a first spline size that is different from a second spline size of another of the at least ten internal spline teeth 64 . At least one of the at least ten internal spline teeth 64 has a cross-sectional shape that is different from the cross-sectional shape of another of the at least ten internal spline teeth 64 . However, as seen in Fig. 27, the inner spline teeth 64 may have the same shape as each other. The inner spline teeth 64 may be the same size as each other. The inner spline teeth 64 may have the same cross-sectional shape as one another.

如圖28中所見，至少一個內部花鍵齒64包含內部花鍵傳動表面66及內部花鍵非傳動表面68。至少一個內部花鍵齒64包括複數個內部花鍵齒64。複數個內部花鍵齒64包括用以在踩踏期間接收來自自行車輪轂總成12(圖6)之傳動旋轉力F1的複數個內部花鍵傳動表面66。複數個內部花鍵齒64包括複數個內部花鍵非傳動表面68。內部花鍵傳動表面66可與鏈輪支撐主體28接觸以在踩踏期間將傳動旋轉力F1自鏈輪SP1傳輸至鏈輪支撐主體28。內部花鍵傳動表面66面向傳動旋轉方向D11。內部花鍵非傳動表面68在圓周方向D1上設置於內部花鍵傳動表面66之反向側上。內部花鍵非傳動表面68面向反向旋轉方向D12，從而在踩踏期間不將傳動旋轉力F1自鏈輪SP1傳輸至鏈輪支撐主體28。 As seen in FIG. 28 , at least one internal spline tooth 64 includes an internal spline drive surface 66 and an internal spline non-drive surface 68 . The at least one internal spline tooth 64 includes a plurality of internal spline teeth 64 . The plurality of internal spline teeth 64 includes a plurality of internal spline drive surfaces 66 for receiving the drive rotational force F1 from the bicycle hub assembly 12 ( FIG. 6 ) during pedaling. The plurality of internal spline teeth 64 includes a plurality of internal spline non-drive surfaces 68 . The inner splined drive surface 66 may contact the sprocket support body 28 to transmit the drive rotational force F1 from the sprocket SP1 to the sprocket support body 28 during pedaling. The inner splined drive surface 66 faces the drive rotational direction D11. The internal spline non-transmission surface 68 is disposed on the opposite side of the internal spline transmission surface 66 in the circumferential direction D1. The inner splined non-drive surface 68 faces the counter-rotational direction D12 so that no drive rotation force F1 is transmitted from the sprocket SP1 to the sprocket support body 28 during pedaling.

至少十個內部花鍵齒64分別具有圓周最大寬度MW2。內部花鍵齒64分別具有圓周最大寬度MW2。圓周最大寬度MW2定義為接收施加至內部花鍵齒64之推力F3的最大寬度。圓周最大寬度MW2定義為基於內部花鍵傳動表面66之直線距離。 At least ten inner spline teeth 64 each have a circumferential maximum width MW2. The inner spline teeth 64 each have a maximum circumferential width MW2. The circumferential maximum width MW2 is defined as the maximum width receiving the thrust force F3 applied to the inner spline teeth 64 . The circumferential maximum width MW2 is defined as the linear distance based on the internal spline drive surface 66 .

內部花鍵傳動表面66包括徑向最外邊緣66A及徑向最內邊緣66B。內 部花鍵傳動表面66自徑向最外邊緣66A延伸至徑向最內邊緣66B。第二參考圓RC21界定於徑向最外邊緣66A上且以旋轉中心軸線A1為中心。第二參考圓RC21與內部花鍵非傳動表面68在參考點68R處相交。圓周最大寬度MW2在圓周方向D1上自徑向最內邊緣66B直線延伸至參考點68R。 The inner splined drive surface 66 includes a radially outermost edge 66A and a radially innermost edge 66B. Inside The upper spline drive surface 66 extends from a radially outermost edge 66A to a radially innermost edge 66B. The second reference circle RC21 is defined on the radially outermost edge 66A and centered on the rotation central axis A1. The second reference circle RC21 intersects the inner splined non-drive surface 68 at a reference point 68R. The circumferential maximum width MW2 extends linearly in the circumferential direction D1 from the radially innermost edge 66B to the reference point 68R.

內部花鍵非傳動表面68包括徑向最外邊緣68A及徑向最內邊緣68B。內部花鍵非傳動表面68自徑向最外邊緣68A延伸至徑向最內邊緣68B。參考點68R設置於徑向最外邊緣68A與徑向最內邊緣68B之間。 The inner splined non-drive surface 68 includes a radially outermost edge 68A and a radially innermost edge 68B. The inner splined non-drive surface 68 extends from a radially outermost edge 68A to a radially innermost edge 68B. Reference point 68R is disposed between radially outermost edge 68A and radially innermost edge 68B.

圓周最大寬度MW2之總和等於或大於40mm。圓周最大寬度MW2之總和等於或大於45mm。圓周最大寬度MW2之總和等於或大於50mm。在此實施例中，圓周最大寬度MW2之總和為50.8mm。然而，圓周最大寬度MW2之總和不限於此實施例。 The sum of the maximum circumferential widths MW2 is equal to or greater than 40 mm. The sum of the maximum circumferential widths MW2 is equal to or greater than 45 mm. The sum of the maximum circumferential widths MW2 is equal to or greater than 50 mm. In this embodiment, the sum of the circumferential maximum widths MW2 is 50.8 mm. However, the sum of the circumferential maximum widths MW2 is not limited to this embodiment.

如圖29中所見，至少一個內部花鍵齒64具有內部花鍵頂徑DM21。至少一個內部花鍵齒64具有內部花鍵齒根圓RC22，內部花鍵齒根圓RC22具有內部花鍵頂徑DM21。然而，內部花鍵齒根圓RC22可具有不同於內部花鍵頂徑DM21之另一直徑。內部花鍵頂徑DM21等於或小於30mm。內部花鍵頂徑DM21等於或大於25mm。內部花鍵頂徑DM21等於或大於29mm。在此實施例中，內部花鍵頂徑DM21為29.8mm。然而，內部花鍵頂徑DM21不限於此實施例及以上範圍。 As seen in Figure 29, at least one internal spline tooth 64 has an internal spline top diameter DM21. At least one internal spline tooth 64 has an internal spline root circle RC22 having an internal spline crown diameter DM21 . However, the inner spline root circle RC22 may have another diameter than the inner spline top diameter DM21. Internal spline top diameter DM21 is equal to or less than 30mm. Internal spline top diameter DM21 is equal to or greater than 25mm. Internal spline top diameter DM21 is equal to or greater than 29mm. In this embodiment, the inner spline top diameter DM21 is 29.8mm. However, the inner spline top diameter DM21 is not limited to this embodiment and the above range.

至少一個內部花鍵齒64具有等於或小於28mm之內部花鍵底徑DM22。內部花鍵底徑DM22等於或大於25mm。內部花鍵底徑DM22等於或大於27mm。在此實施例中，內部花鍵底徑DM22為27.7mm。然而，內部花鍵底徑DM22不限於此實施例及以上範圍。 At least one internal spline tooth 64 has an internal spline base diameter DM22 equal to or smaller than 28 mm. Internal spline bottom diameter DM22 is equal to or greater than 25mm. Internal spline bottom diameter DM22 is equal to or greater than 27mm. In this embodiment, the internal spline base diameter DM22 is 27.7 mm. However, the internal spline bottom diameter DM22 is not limited to this embodiment and the above range.

如圖28中所見，複數個內部花鍵傳動表面66包括徑向最外邊緣66A 及徑向最內邊緣66B。複數個內部花鍵傳動表面66各自包括自徑向最外邊緣66A至徑向最內邊緣66B界定之徑向長度RL21。複數個內部花鍵傳動表面66之徑向長度RL21之總和等於或大於7mm。徑向長度RL21之總和等於或大於10mm。徑向長度RL21之總和等於或大於15mm。在此實施例中，徑向長度RL21之總和為19.5mm。然而，徑向長度RL21之總和不限於此實施例及以上範圍。 As seen in FIG. 28, the plurality of interior spline drive surfaces 66 includes a radially outermost edge 66A and radially innermost edge 66B. The plurality of inner splined drive surfaces 66 each include a radial length RL21 defined from a radially outermost edge 66A to a radially innermost edge 66B. The sum of the radial lengths RL21 of the plurality of internal spline transmission surfaces 66 is equal to or greater than 7mm. The sum of the radial lengths RL21 is equal to or greater than 10 mm. The sum of the radial lengths RL21 is equal to or greater than 15 mm. In this embodiment, the sum of the radial lengths RL21 is 19.5 mm. However, the sum of the radial lengths RL21 is not limited to this embodiment and the above range.

複數個內部花鍵齒64具有額外徑向長度RL22。額外徑向長度RL22分別自內部花鍵齒根圓RC22至複數個內部花鍵齒64之徑向最內端64A界定。額外徑向長度RL22之總和等於或大於12mm。在此實施例中，額外徑向長度RL22之總和為27.95mm。然而，額外徑向長度RL22之總和不限於此實施例及以上範圍。 The plurality of internal spline teeth 64 has an additional radial length RL22. The additional radial length RL22 is defined from the inner spline root circle RC22 to the radially innermost end 64A of the plurality of inner spline teeth 64 , respectively. The sum of the extra radial lengths RL22 is equal to or greater than 12mm. In this embodiment, the sum of the additional radial lengths RL22 is 27.95 mm. However, the sum of the additional radial lengths RL22 is not limited to this embodiment and the above range.

內部花鍵齒64中之至少一者相對於圓周齒尖中心線CL2具有不對稱形狀。圓周齒尖中心線CL2為連接旋轉中心軸線A1及內部花鍵齒64之徑向最內端64A之圓周中心點CP2的線。然而，內部花鍵齒64中之至少一者可相對於圓周齒尖中心線CL2具有對稱形狀。內部花鍵齒64中之至少一者包含內部花鍵傳動表面66及內部花鍵非傳動表面68。 At least one of the internal spline teeth 64 has an asymmetric shape with respect to the circumferential tooth tip centerline CL2. The circumferential tooth tip centerline CL2 is a line connecting the rotation center axis A1 and the circumferential center point CP2 of the radially innermost end 64A of the internal spline tooth 64 . However, at least one of the inner spline teeth 64 may have a symmetrical shape with respect to the circumferential tip centerline CL2. At least one of the internal spline teeth 64 includes an internal spline drive surface 66 and an internal spline non-drive surface 68 .

內部花鍵傳動表面66具有第一內部花鍵表面角AG21。第一內部花鍵表面角AG21界定於內部花鍵傳動表面66與第一徑向線L21之間。第一徑向線L21自自行車後鏈輪總成14之旋轉中心軸線A1延伸至內部花鍵傳動表面66之徑向最外邊緣66A。第一內部周節角PA21或第二內部周節角PA22界定於相鄰第一徑向線L21(參見例如圖26)之間。 The inner splined drive surface 66 has a first inner splined surface angle AG21. A first internal spline surface angle AG21 is defined between the internal spline drive surface 66 and the first radial line L21. The first radial line L21 extends from the central axis of rotation A1 of the bicycle rear sprocket assembly 14 to the radially outermost edge 66A of the inner splined drive surface 66 . The first inner circumferential pitch angle PA21 or the second inner circumferential pitch angle PA22 is defined between adjacent first radial lines L21 (see, eg, FIG. 26 ).

內部花鍵非傳動表面68具有第二內部花鍵表面角AG22。第二內部花鍵表面角AG22界定於內部花鍵非傳動表面68與第二徑向線L22之間。第 二徑向線L22從自行車後鏈輪總成14之旋轉中心軸線A1延伸至內部花鍵非傳動表面68之徑向最外邊緣68A。 The internal splined non-drive surface 68 has a second internal splined surface angle AG22. A second internal spline surface angle AG22 is defined between the internal spline non-drive surface 68 and the second radial line L22. No. Two radial lines L22 extend from the central axis of rotation A1 of the bicycle rear sprocket assembly 14 to the radially outermost edge 68A of the inner splined non-drive surface 68 .

在此實施例中，第二內部花鍵表面角AG22不同於第一內部花鍵表面角AG21。第一內部花鍵表面角AG21小於第二內部花鍵表面角AG22。然而第一內部花鍵表面角AG21可等於或大於第二內部花鍵表面角AG22。 In this embodiment, the second internal spline surface angle AG22 is different from the first internal spline surface angle AG21. The first internal spline surface angle AG21 is smaller than the second internal spline surface angle AG22. However, the first internal spline surface angle AG21 may be equal to or greater than the second internal spline surface angle AG22.

第一內部花鍵表面角AG21在0度至10度之範圍內。第二內部花鍵表面角AG22在0度至60度之範圍內。在此實施例中，第一內部花鍵表面角AG21為5度。第二內部花鍵表面角AG22為45度。然而，第一內部花鍵表面角AG21及第二內部花鍵表面角AG22不限於此實施例及以上範圍。 The first internal spline surface angle AG21 is in the range of 0° to 10°. The second internal spline surface angle AG22 is in the range of 0 degrees to 60 degrees. In this embodiment, the first internal spline surface angle AG21 is 5 degrees. The second internal spline surface angle AG22 is 45 degrees. However, the first internal spline surface angle AG21 and the second internal spline surface angle AG22 are not limited to this embodiment and the above range.

如圖30中所見，內部花鍵齒64與外部花鍵齒40嚙合以將傳動旋轉力F1自鏈輪SP1傳輸至鏈輪支撐主體28。內部花鍵傳動表面66可與外部花鍵傳動表面48接觸以將傳動旋轉力F1自鏈輪SP1傳輸至鏈輪支撐主體28。在內部花鍵傳動表面66與外部花鍵傳動表面48接觸之狀態中，內部花鍵非傳動表面68與外部花鍵非傳動表面50間隔開。 As seen in FIG. 30 , the inner spline teeth 64 mesh with the outer spline teeth 40 to transmit the transmission rotational force F1 from the sprocket SP1 to the sprocket support body 28 . The inner splined drive surface 66 may contact the outer splined drive surface 48 to transmit the drive rotational force F1 from the sprocket SP1 to the sprocket support body 28 . In the state where the inner splined drive surface 66 is in contact with the outer splined drive surface 48 , the inner splined non-drive surface 68 is spaced apart from the outer splined non-drive surface 50 .

如圖31中所見，鏈輪SP2包括複數個內部花鍵齒70。鏈輪SP3包括複數個內部花鍵齒72。鏈輪SP4包括複數個內部花鍵齒74。第一環59A包括複數個內部花鍵齒76。如圖32中所見，鏈輪支撐件56之輪轂嚙合部分60包括複數個內部花鍵齒78。複數個內部花鍵齒70具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒72具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒74具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒76具有與複數個內部花鍵齒64之結構實質上相同的結構。複數個內部花鍵齒78具有與複數個內部花鍵齒64之結構實質上相同的結構。因此，出於簡潔起見， 此處將不作詳細描述。 As seen in FIG. 31 , sprocket SP2 includes a plurality of internal spline teeth 70 . The sprocket SP3 includes a plurality of internal spline teeth 72 . Sprocket SP4 includes a plurality of internal spline teeth 74 . The first ring 59A includes a plurality of internal spline teeth 76 . As seen in FIG. 32 , the hub engaging portion 60 of the sprocket support 56 includes a plurality of internal spline teeth 78 . The plurality of internal spline teeth 70 has substantially the same structure as the plurality of internal spline teeth 64 . The plurality of internal spline teeth 72 has substantially the same structure as the plurality of internal spline teeth 64 . The plurality of internal spline teeth 74 has substantially the same structure as the plurality of internal spline teeth 64 . The plurality of internal spline teeth 76 has substantially the same structure as the plurality of internal spline teeth 64 . The plurality of internal spline teeth 78 has substantially the same structure as the plurality of internal spline teeth 64 . Therefore, for brevity, A detailed description will not be given here.

如圖9及圖10中所見，鏈輪支撐主體28包括設置於基座支撐件41之軸向端處的輪轂指示器28I。當沿旋轉中心軸線A1檢視時，輪轂指示器28I設置於第二外部周節角PA12之區域中。在此實施例中，輪轂指示器28I包括點。然而，輪轂指示器28I可包括其他形狀，諸如三角形及線。此外，輪轂指示器28I可為例如藉由諸如黏附劑之黏合結構附接至鏈輪支撐主體28的單獨構件。輪轂指示器28I之位置不限於此實施例。 As seen in FIGS. 9 and 10 , the sprocket support body 28 includes a hub indicator 28I disposed at an axial end of the base support 41 . The hub indicator 28I is disposed in the region of the second outer peripheral pitch angle PA12 when viewed along the rotational center axis A1. In this embodiment, hub indicator 281 includes dots. However, hub indicator 281 may include other shapes, such as triangles and lines. Additionally, the hub indicator 281 may be a separate component attached to the sprocket support body 28, for example, by an adhesive structure such as an adhesive. The position of the hub indicator 28I is not limited to this embodiment.

如圖26及圖27中所見，鏈輪SP1包括設置於鏈輪主體SP1A之軸向端處的鏈輪指示器SP1I。當沿旋轉中心軸線A1檢視時，鏈輪指示器SP1I設置於第二內部周節角PA22之區域中。在此實施例中，鏈輪指示器SP1I包括點。然而，鏈輪指示器SP1I可包括其它形狀，諸如三角形及線。此外，鏈輪指示器SP1I可為例如藉由諸如黏附劑之黏合結構附接至鏈輪SP1的單獨構件。鏈輪指示器SP1I之位置不限於此實施例。鏈輪指示器SP1I可提供至其他鏈輪SP2至SP12中之任一者。鏈輪指示器SP1I亦可提供至鏈輪支撐件56。 As seen in FIGS. 26 and 27 , the sprocket SP1 includes a sprocket indicator SP1I provided at an axial end of the sprocket main body SP1A. The sprocket indicator SP1I is arranged in the region of the second inner peripheral pitch angle PA22 when viewed along the rotation center axis A1. In this embodiment, the sprocket indicator SP1I includes dots. However, the sprocket indicator SP1I may include other shapes, such as triangles and lines. Furthermore, the sprocket indicator SP1I may be a separate member attached to the sprocket SP1, for example, by an adhesive structure such as an adhesive. The position of the sprocket indicator SP1I is not limited to this embodiment. Sprocket indicator SP1I may be provided to any of the other sprockets SP2-SP12. A sprocket indicator SP1I may also be provided to the sprocket support 56 .

如圖33中所見，自由輪結構38包括第一棘輪構件80及第二棘輪構件82。第一棘輪構件80經構形以按扭矩傳輸方式與輪轂主體36及鏈輪支撐主體28中之一者嚙合。第二棘輪構件82經構形以按扭矩傳輸方式與輪轂主體36及鏈輪支撐主體28中之另一者嚙合。在此實施例中，第一棘輪構件80按扭矩傳輸方式與鏈輪支撐主體28嚙合。第二棘輪構件82按扭矩傳輸方式與輪轂主體36嚙合。然而，第一棘輪構件80可經構形以按扭矩傳輸方式與輪轂主體36嚙合。第二棘輪構件82可經構形以按扭矩傳輸方式與鏈輪支撐主體28嚙合。 As seen in FIG. 33 , the freewheel structure 38 includes a first ratchet member 80 and a second ratchet member 82 . The first ratchet member 80 is configured to torque-transmittingly engage one of the hub body 36 and the sprocket support body 28 . The second ratchet member 82 is configured to torque-transmittingly engage the other of the hub body 36 and the sprocket support body 28 . In this embodiment, the first ratchet member 80 is torque-transmittingly engaged with the sprocket support body 28 . The second ratchet member 82 is torque transmitting engaged with the hub body 36 . However, the first ratchet member 80 may be configured to engage the hub body 36 in a torque transmitting manner. The second ratchet member 82 may be configured to torque-transmittingly engage the sprocket support body 28 .

第一棘輪構件80安裝至鏈輪支撐主體28以圍繞旋轉中心軸線A1相對於輪轂主體36與鏈輪支撐主體28一起旋轉。第二棘輪構件82安裝至輪轂主體36以圍繞旋轉中心軸線A1相對於鏈輪支撐主體28與輪轂主體36一起旋轉。第一棘輪構件80及第二棘輪構件82中之每一者具有環狀形狀。 The first ratchet member 80 is mounted to the sprocket support body 28 to rotate with the sprocket support body 28 relative to the hub body 36 about the rotation center axis A1. The second ratchet member 82 is mounted to the hub body 36 to rotate with the hub body 36 about the rotation center axis A1 relative to the sprocket support body 28 . Each of the first ratchet member 80 and the second ratchet member 82 has a ring shape.

第一棘輪構件80及第二棘輪構件82中之至少一者可在相對於旋轉中心軸線A1之軸向方向D2上相對於輪轂軸30移動。在此實施例中，第一棘輪構件80及第二棘輪構件82中之每一者可在軸向方向D2上相對於輪轂軸30移動。第二棘輪構件82可在軸向方向D2上相對於輪轂主體36移動。第一棘輪構件80可在軸向方向D2上相對於鏈輪支撐主體28移動。 At least one of the first ratchet member 80 and the second ratchet member 82 is movable relative to the hub axle 30 in an axial direction D2 relative to the rotation center axis A1 . In this embodiment, each of the first ratchet member 80 and the second ratchet member 82 is movable relative to the hub axle 30 in the axial direction D2. The second ratchet member 82 is movable relative to the hub body 36 in the axial direction D2. The first ratchet member 80 is movable relative to the sprocket support body 28 in the axial direction D2.

輪轂主體36包括具有環狀形狀之自由輪外殼36H。自由輪外殼36H在軸向方向D2上延伸。第一棘輪構件80及第二棘輪構件82在經組裝狀態中設置於自由輪外殼36H中。 The hub body 36 includes a freewheel housing 36H having an annular shape. The freewheel housing 36H extends in the axial direction D2. The first ratchet member 80 and the second ratchet member 82 are disposed in the freewheel housing 36H in the assembled state.

如圖34中所見，第一棘輪構件80包括至少一個第一棘輪齒80A。在此實施例中，至少一個第一棘輪齒80A包括複數個第一棘輪齒80A。複數個第一棘輪齒80A係在圓周方向D1上配置以提供鋸齒。 As seen in FIG. 34 , the first ratchet member 80 includes at least one first ratchet tooth 80A. In this embodiment, at least one first ratchet tooth 80A includes a plurality of first ratchet teeth 80A. The plurality of first ratchet teeth 80A are arranged in the circumferential direction D1 to provide saw teeth.

如圖35中所見，第二棘輪構件82包括經構形以按扭矩傳輸方式與至少一個第一棘輪齒80A嚙合之至少一個第二棘輪齒82A。至少一個第二棘輪齒82A與至少一個第一棘輪齒80A嚙合以將旋轉力F1自鏈輪支撐主體28傳輸至輪轂主體36(圖33)。在此實施例中，至少一個第二棘輪齒82A包括經構形以按扭矩傳輸方式與複數個第一棘輪齒80A嚙合之複數個第二棘輪齒82A。複數個第二棘輪齒82A係在圓周方向D1上配置以提供鋸齒。複數個第二棘輪齒82A可與複數個第一棘輪齒80A嚙合。在第二棘輪齒82A與第一棘輪齒80A嚙合之狀態中，第一棘輪構件80與第二棘輪構件82一起旋 轉。 As seen in FIG. 35 , the second ratchet member 82 includes at least one second ratchet tooth 82A configured to torque-transmittingly engage the at least one first ratchet tooth 80A. The at least one second ratchet tooth 82A meshes with the at least one first ratchet tooth 80A to transmit the rotational force F1 from the sprocket support body 28 to the hub body 36 ( FIG. 33 ). In this embodiment, the at least one second ratchet tooth 82A includes a plurality of second ratchet teeth 82A configured to torque-transmittingly mesh with the plurality of first ratchet teeth 80A. The plurality of second ratchet teeth 82A are arranged in the circumferential direction D1 to provide saw teeth. The plurality of second ratchet teeth 82A can engage with the plurality of first ratchet teeth 80A. In the state where the second ratchet teeth 82A are engaged with the first ratchet teeth 80A, the first ratchet member 80 rotates together with the second ratchet member 82 . change.

如圖34及圖35中所見，鏈輪支撐主體28包括具有第一螺旋花鍵28H之外周邊表面28P。第一棘輪構件80經構形以按扭矩傳輸方式與鏈輪支撐主體28嚙合，且包括與第一螺旋花鍵28H配合之第二螺旋花鍵80H。第一棘輪構件80係在藉由自鏈輪支撐主體28施加之第一推力傳動期間經由與第一螺旋花鍵28H配合之第二螺旋花鍵80H在相對於鏈輪支撐主體28之軸向方向D2上可移動地安裝。在此實施例中，第一螺旋花鍵28H包括複數個螺旋外部花鍵齒46。第二螺旋花鍵80H包括與複數個螺旋外部花鍵齒46配合之複數個螺旋內部花鍵齒80H1。 As seen in FIGS. 34 and 35 , the sprocket support body 28 includes an outer peripheral surface 28P having a first helical spline 28H. The first ratchet member 80 is configured for torque transmitting engagement with the sprocket support body 28 and includes a second helical spline 80H cooperating with the first helical spline 28H. The first ratchet member 80 is rotated in the axial direction relative to the sprocket support body 28 through the second helical spline 80H cooperating with the first helical spline 28H during transmission by the first thrust force applied from the sprocket support body 28. Removably mounted on D2. In this embodiment, the first helical spline 28H includes a plurality of helical outer spline teeth 46 . The second helical spline 80H includes a plurality of helical inner spline teeth 80H1 cooperating with the plurality of helical outer spline teeth 46 .

如圖36中所見，輪轂主體36包括內周邊表面36S及至少一個第一齒36T。至少一個第一齒36T設置於內周邊表面36S上。在此實施例中，自由輪外殼36H包括內周邊表面36S。輪轂主體36包括複數個第一齒36T。複數個第一齒36T設置於內周邊表面36S上且相對於旋轉中心軸線A1自內周邊表面36S徑向向內延伸。第一齒36T係在圓周方向D1上配置以在第一齒36T中之鄰近的兩個齒之間界定複數個凹槽36R。 As seen in FIG. 36 , the hub body 36 includes an inner peripheral surface 36S and at least one first tooth 36T. At least one first tooth 36T is provided on the inner peripheral surface 36S. In this embodiment, freewheel housing 36H includes an inner peripheral surface 36S. The hub body 36 includes a plurality of first teeth 36T. A plurality of first teeth 36T are disposed on the inner peripheral surface 36S and extend radially inward from the inner peripheral surface 36S relative to the rotation center axis A1. The first teeth 36T are arranged in the circumferential direction D1 to define a plurality of grooves 36R between adjacent two of the first teeth 36T.

第二棘輪構件82按扭矩傳輸方式與輪轂主體36嚙合。第二棘輪構件82包括輪轂主體嚙合部分82E，輪轂主體嚙合部分82E按扭矩傳輸方式與輪轂主體36嚙合以經由輪轂主體嚙合部分82E將旋轉力F1自第一棘輪構件80傳輸至輪轂主體36。輪轂主體嚙合部分82E及輪轂主體36中之一者包括相對於自行車輪轂總成12之旋轉中心軸線A1徑向延伸的至少一個突起部。輪轂主體嚙合部分82E及輪轂主體36中之另一者包括與至少一個突起部嚙合之至少一個凹槽。在此實施例中，輪轂主體嚙合部分82E包括徑向延伸之至少一個突起部82T作為至少一個突起部。輪轂主體36包括與至少 一個突起部82T嚙合之至少一個凹槽36R。在此實施例中，輪轂主體嚙合部分82E包括複數個突起部82T。複數個突起部82T與複數個凹槽36R嚙合。 The second ratchet member 82 is torque transmitting engaged with the hub body 36 . The second ratchet member 82 includes a hub body engaging portion 82E that torque-transmittingly engages the hub body 36 to transmit the rotational force F1 from the first ratchet member 80 to the hub body 36 via the hub body engaging portion 82E. One of the hub body engaging portion 82E and the hub body 36 includes at least one protrusion extending radially with respect to the rotation center axis A1 of the bicycle hub assembly 12 . The other of hub body engaging portion 82E and hub body 36 includes at least one groove that engages at least one protrusion. In this embodiment, the hub body engaging portion 82E includes at least one protrusion 82T extending radially as the at least one protrusion. The hub body 36 includes at least A protrusion 82T engages with at least one groove 36R. In this embodiment, the hub body engaging portion 82E includes a plurality of protrusions 82T. The plurality of protrusions 82T are engaged with the plurality of grooves 36R.

如圖35中所見，鏈輪支撐主體28具有設置於外周邊表面28P上以在惰轉期間朝向輪轂主體36導引第一棘輪構件80之導引部分28G。導引部分28G較佳經配置以相對於第一螺旋花鍵28H界定鈍角AG28(圖41)。鏈輪支撐主體28包括複數個導引部分28G。導引部分28G經構形以在惰轉或空轉期間朝向輪轂主體36導引第一棘輪構件80。導引部分28G在惰轉期間朝向輪轂主體36導引第一棘輪構件80以解除至少一個第一棘輪齒80A(圖34)與至少一個第二棘輪齒82A之間的嚙合。導引部分28G經構形以使第一棘輪構件80在軸向方向D2上移動遠離第二棘輪構件82。導引部分28G在至少圓周方向D1上相對於鏈輪支撐主體28延伸。導引部分28G在至少圓周方向D1上自複數個螺旋外部花鍵齒46中之一個齒延伸。雖然在此實施例中導引部分28G與螺旋外部花鍵齒46一體地設置為單件式整體構件，但導引部分28G可為與複數個螺旋外部花鍵齒46分離的構件。由於導引部分28G，尤其是在導引部分28G經配置以相對於第一螺旋花鍵28H界定鈍角AG 28之情況下，第一棘輪構件80及第二棘輪構件82在惰轉期間彼此順利地脫嚙。此亦導致在惰轉期間減少雜訊，此係因為至少一個第一棘輪齒80A及至少一個第二棘輪齒82A在惰轉期間彼此順利地分離。 As seen in FIG. 35 , the sprocket support body 28 has a guide portion 28G provided on the outer peripheral surface 28P to guide the first ratchet member 80 toward the hub body 36 during idling. Guide portion 28G is preferably configured to define an obtuse angle AG28 relative to first helical spline 28H ( FIG. 41 ). The sprocket supporting body 28 includes a plurality of guide portions 28G. The guide portion 28G is configured to guide the first ratchet member 80 toward the hub body 36 during idle or lost motion. The guide portion 28G guides the first ratchet member 80 toward the hub body 36 during idling to disengage the at least one first ratchet tooth 80A ( FIG. 34 ) and the at least one second ratchet tooth 82A. The guide portion 28G is configured to move the first ratchet member 80 away from the second ratchet member 82 in the axial direction D2. The guide portion 28G extends relative to the sprocket supporting body 28 in at least the circumferential direction D1. The guide portion 28G extends from one of the plurality of helical outer spline teeth 46 in at least the circumferential direction D1. While in this embodiment the guide portion 28G is provided integrally with the helical outer spline teeth 46 as a one-piece unitary member, the guide portion 28G may be a separate member from the plurality of helical outer spline teeth 46 . Due to the guide portion 28G, especially where the guide portion 28G is configured to define an obtuse angle AG 28 with respect to the first helical spline 28H, the first ratchet member 80 and the second ratchet member 82 slide smoothly into each other during idling. out of bite. This also results in reduced noise during idling because the at least one first ratchet tooth 80A and the at least one second ratchet tooth 82A are smoothly separated from each other during idling.

如圖33中所見，自行車輪轂總成12進一步包含偏置構件84。偏置構件84安置於輪轂主體36與第一棘輪構件80之間以在軸向方向D2上朝向第二棘輪構件82偏置第一棘輪構件80。在此實施例中，舉例而言，偏置構件84為壓縮彈簧。 As seen in FIG. 33 , the bicycle hub assembly 12 further includes a biasing member 84 . A biasing member 84 is disposed between the hub body 36 and the first ratchet member 80 to bias the first ratchet member 80 toward the second ratchet member 82 in the axial direction D2. In this embodiment, biasing member 84 is, for example, a compression spring.

如圖37中所見，偏置構件84在軸向方向D2上在輪轂主體36與第一棘輪構件80之間壓縮。偏置構件84朝向第二棘輪構件82偏置第一棘輪構件80以維持第一棘輪構件80與第二棘輪構件82經由第一棘輪齒80A及第二棘輪齒82A彼此嚙合之嚙合狀態。 As seen in FIG. 37 , the biasing member 84 is compressed in the axial direction D2 between the hub body 36 and the first ratchet member 80 . The biasing member 84 biases the first ratchet member 80 toward the second ratchet member 82 to maintain a meshed state in which the first ratchet member 80 and the second ratchet member 82 are meshed with each other via the first ratchet teeth 80A and the second ratchet teeth 82A.

較佳地，偏置構件84與輪轂主體36嚙合以與輪轂主體36一起旋轉。偏置構件84安裝至輪轂主體36以圍繞旋轉中心軸線A1(圖33)與輪轂主體36一起旋轉。偏置構件84包括捲曲主體84A及連接端84B。輪轂主體36包括連接孔36F。連接端84B設置於連接孔36F中，使得偏置構件84圍繞旋轉中心軸線A1(圖33)與輪轂主體36一起旋轉。 Preferably, the biasing member 84 is engaged with the hub body 36 for common rotation therewith. The biasing member 84 is mounted to the hub body 36 to rotate with the hub body 36 about the rotational center axis A1 ( FIG. 33 ). The biasing member 84 includes a crimped body 84A and a connecting end 84B. The hub main body 36 includes a connection hole 36F. The connection end 84B is disposed in the connection hole 36F such that the biasing member 84 rotates together with the hub body 36 about the rotation center axis A1 ( FIG. 33 ).

如圖37中所見，鏈輪支撐主體28之外周邊表面28P支撐第一棘輪構件80及第二棘輪構件82。第一棘輪構件80包括面向軸向方向D2之軸向表面80S。至少一個第一棘輪齒80A安置於第一棘輪構件80之軸向表面80S上。在此實施例中，複數個第一棘輪齒80A安置於第一棘輪構件80之軸向表面80S上。軸向表面80S實質上垂直於軸向方向D2。然而，軸向表面80S可不垂直於軸向方向D2。 As seen in FIG. 37 , the outer peripheral surface 28P of the sprocket support body 28 supports a first ratchet member 80 and a second ratchet member 82 . The first ratchet member 80 includes an axial surface 80S facing the axial direction D2. At least one first ratchet tooth 80A is disposed on the axial surface 80S of the first ratchet member 80 . In this embodiment, a plurality of first ratchet teeth 80A are disposed on the axial surface 80S of the first ratchet member 80 . The axial surface 80S is substantially perpendicular to the axial direction D2. However, the axial surface 80S may not be perpendicular to the axial direction D2.

第二棘輪構件82包括面向軸向方向D2之軸向表面82S。至少一個第二棘輪齒82A安置於第二棘輪構件82之軸向表面82S上。複數個第二棘輪齒82A安置於第二棘輪構件82之軸向表面82S上。第二棘輪構件82之軸向表面82S面朝第一棘輪構件80之軸向表面80S。軸向表面82S實質上垂直於軸向方向D2。然而，軸向表面82S可不垂直於軸向方向D2。 The second ratchet member 82 includes an axial surface 82S facing the axial direction D2. At least one second ratchet tooth 82A is disposed on the axial surface 82S of the second ratchet member 82 . A plurality of second ratchet teeth 82A are disposed on an axial surface 82S of the second ratchet member 82 . The axial surface 82S of the second ratchet member 82 faces the axial surface 80S of the first ratchet member 80 . Axial surface 82S is substantially perpendicular to axial direction D2. However, the axial surface 82S may not be perpendicular to the axial direction D2.

如圖33中所見，自行車輪轂總成12包含間隔件86、支撐構件88、滑動構件90、額外偏置構件92及收納構件94。然而，有可能自自行車輪轂總成12省略間隔件86、支撐構件88、滑動構件90、額外偏置構件92及收 納構件94中之至少一者。 As seen in FIG. 33 , bicycle hub assembly 12 includes spacer 86 , support member 88 , slide member 90 , additional biasing member 92 , and receiving member 94 . However, it is possible to omit the spacer 86 , support member 88 , slide member 90 , additional biasing member 92 and retractor from the bicycle hub assembly 12 . At least one of the receiving members 94 .

如圖37及圖38中所見，間隔件86在圍繞旋轉中心軸線A1界定之圓周方向D1上至少部分地設置於至少一個第一齒36T與至少一個突起部82T之間。在此實施例中，間隔件86在圓周方向D1上部分地設置於第一齒36T與突起部82T之間。然而，間隔件86可在圓周方向D1上完全設置於第一齒36T與突起部82T之間。 As seen in FIGS. 37 and 38 , the spacer 86 is at least partially disposed between the at least one first tooth 36T and the at least one protrusion 82T in a circumferential direction D1 defined around the rotation center axis A1 . In this embodiment, the spacer 86 is partially disposed between the first tooth 36T and the protrusion 82T in the circumferential direction D1. However, the spacer 86 may be completely disposed between the first tooth 36T and the protrusion 82T in the circumferential direction D1.

如圖38至圖40中所見，間隔件86包括設置於至少一個第一齒36T與至少一個突起部82T之間的至少一個中間部分86A。至少一個中間部分86A在圓周方向D1上設置於至少一個第一齒36T與至少一個突起部82T之間。在此實施例中，間隔件86包括在圓周方向D1上分別設置於第一齒36T與突起部82T之間的複數個中間部分86A。雖然在此實施例中間隔件86包括多個中間部分86A，但間隔件86可包括一個中間部分86A。 As seen in FIGS. 38-40 , the spacer 86 includes at least one intermediate portion 86A disposed between the at least one first tooth 36T and the at least one protrusion 82T. At least one intermediate portion 86A is disposed between the at least one first tooth 36T and the at least one protrusion 82T in the circumferential direction D1. In this embodiment, the spacer 86 includes a plurality of intermediate portions 86A disposed between the first tooth 36T and the protrusion 82T, respectively, in the circumferential direction D1. Although in this embodiment the spacer 86 includes a plurality of intermediate portions 86A, the spacer 86 may include one intermediate portion 86A.

如圖39及圖40中所見，間隔件86包括連接部分86B。複數個中間部分86A在平行於旋轉中心軸線A1之軸向方向D2上自連接部分86B延伸。雖然在此實施例中間隔件86包括連接部分86B，但可自間隔件86省略連接部分86B。 As seen in FIGS. 39 and 40 , the spacer 86 includes a connection portion 86B. The plurality of intermediate portions 86A extend from the connection portion 86B in an axial direction D2 parallel to the rotation center axis A1. Although the spacer 86 includes the connection portion 86B in this embodiment, the connection portion 86B may be omitted from the spacer 86 .

間隔件86包括非金屬材料。在此實施例中，非金屬材料包括樹脂材料。樹脂材料之實例包括合成樹脂。非金屬材料可包括並非樹脂材料、代替樹脂材料或除樹脂材料之外的材料。雖然在此實施例中中間部分86A與連接部分86B彼此一體地設置為單件式整體構件，但中間部分86A中之至少一者可為與連接部分86B分離的部分。 Spacer 86 includes a non-metallic material. In this embodiment, the non-metallic material includes a resin material. Examples of resin materials include synthetic resins. Non-metallic materials may include materials that are not, instead of, or in addition to resin materials. Although in this embodiment the intermediate portion 86A and the connecting portion 86B are provided integrally with each other as a one-piece unitary member, at least one of the intermediate portions 86A may be a separate portion from the connecting portion 86B.

如圖37及圖38中所見，複數個中間部分86A在徑向方向上設置於輪轂主體36之內周邊表面36S與第二棘輪構件82之外周邊表面82P之間。 As seen in FIGS. 37 and 38 , a plurality of intermediate portions 86A are disposed between the inner peripheral surface 36S of the hub main body 36 and the outer peripheral surface 82P of the second ratchet member 82 in the radial direction.

如圖37中所見，支撐構件88在軸向方向D2上設置於輪轂主體36與第二棘輪構件82之間。支撐構件88附接至第二棘輪構件82。支撐構件88設置於第一棘輪構件80之徑向外部。支撐構件88可與第一棘輪構件80接觸。支撐構件88較佳包括非金屬材料。由非金屬材料製成之支撐構件88減少自行車輪轂總成12之操作期間的雜訊。在此實施例中，非金屬材料包括樹脂材料。非金屬材料可包括並非樹脂材料、代替樹脂材料或除樹脂材料之外的材料。 As seen in FIG. 37 , the support member 88 is disposed between the hub body 36 and the second ratchet member 82 in the axial direction D2. A support member 88 is attached to the second ratchet member 82 . The support member 88 is disposed radially outside the first ratchet member 80 . The support member 88 can be in contact with the first ratchet member 80 . Support member 88 preferably comprises a non-metallic material. The support member 88 made of a non-metallic material reduces noise during operation of the bicycle hub assembly 12 . In this embodiment, the non-metallic material includes a resin material. Non-metallic materials may include materials that are not, instead of, or in addition to resin materials.

滑動構件90在平行於旋轉中心軸線A1之軸向方向D2上設置於鏈輪支撐主體28與第二棘輪構件82之間。第二棘輪構件82在軸向方向D2上設置於第一棘輪構件80與滑動構件90之間。滑動構件90較佳包括非金屬材料。由非金屬材料製成之滑動構件90減少自行車輪轂總成12之操作期間的雜訊。在此實施例中，非金屬材料包括樹脂材料。非金屬材料可包括並非樹脂材料、代替樹脂材料或除樹脂材料之外的材料。 The sliding member 90 is disposed between the sprocket support body 28 and the second ratchet member 82 in the axial direction D2 parallel to the rotation center axis A1. The second ratchet member 82 is disposed between the first ratchet member 80 and the slide member 90 in the axial direction D2. The sliding member 90 preferably comprises a non-metallic material. The sliding member 90 made of a non-metallic material reduces noise during operation of the bicycle hub assembly 12 . In this embodiment, the non-metallic material includes a resin material. Non-metallic materials may include materials that are not, instead of, or in addition to resin materials.

鏈輪支撐主體28包括鄰接件28E，鄰接件28E用以鄰接第二棘輪構件82以限制第二棘輪構件82遠離輪轂主體36之軸向移動。在此實施例中，鄰接件28E可經由滑動構件90間接地鄰接第二棘輪構件82。替代地，鄰接件28E可直接地鄰接第二棘輪構件82。第一棘輪構件80安置於第二棘輪構件82之軸向側上，第二棘輪構件82在軸向方向D2上與鏈輪支撐主體28之鄰接件28E相對。滑動構件90在軸向方向D2上設置於鏈輪支撐主體28之鄰接件28E與第二棘輪構件82之間。 The sprocket support body 28 includes an abutment 28E for abutting the second ratchet member 82 to limit axial movement of the second ratchet member 82 away from the hub body 36 . In this embodiment, the abutment 28E may indirectly abut the second ratchet member 82 via the slide member 90 . Alternatively, abutment 28E may directly abut second ratchet member 82 . The first ratchet member 80 is arranged on the axial side of the second ratchet member 82 , which is opposite the abutment 28E of the sprocket support body 28 in the axial direction D2 . The sliding member 90 is disposed between the abutment 28E of the sprocket support body 28 and the second ratchet member 82 in the axial direction D2.

如圖37中所見，額外偏置構件92在軸向方向D2上設置於輪轂主體36與第二棘輪構件82之間以朝向鏈輪支撐主體28偏置第二棘輪構件82。在此實施例中，額外偏置構件92在軸向方向D2上經由支撐構件88偏置第二 棘輪構件82。額外偏置構件92設置於偏置構件84之徑向外部。在此實施例中，額外偏置構件92設置於複數個第二棘輪齒82A之徑向外部。 As seen in FIG. 37 , an additional biasing member 92 is disposed between the hub body 36 and the second ratchet member 82 in the axial direction D2 to bias the second ratchet member 82 toward the sprocket support body 28 . In this embodiment, the additional biasing member 92 is biased in the axial direction D2 via the support member 88 for the second Ratchet member 82 . The additional biasing member 92 is disposed radially outward of the biasing member 84 . In this embodiment, the additional biasing member 92 is disposed radially outward of the plurality of second ratchet teeth 82A.

收納構件94包括非金屬材料。由非金屬材料製成之收納構件94防止偏置構件84在自行車輪轂總成12之操作期間過度扭轉。在此實施例中，非金屬材料包括樹脂材料。非金屬材料可包括並非樹脂材料、代替樹脂材料或除樹脂材料之外的材料。收納構件94包括軸向收納部分96及徑向收納部分98。軸向收納部分96在軸向方向D2上設置於第一棘輪構件80與偏置構件84之間。徑向收納部分98在軸向方向D2上自軸向收納部分96延伸。徑向收納部分98設置於偏置構件84之徑向內部。軸向收納部分96及徑向收納部分98彼此一體地設置為單件式整體構件。然而，軸向收納部分96可為與徑向收納部分98分離的構件。 The storage member 94 includes a non-metallic material. The receiving member 94 made of a non-metallic material prevents excessive twisting of the biasing member 84 during operation of the bicycle hub assembly 12 . In this embodiment, the non-metallic material includes a resin material. Non-metallic materials may include materials that are not, instead of, or in addition to resin materials. The storage member 94 includes an axial storage portion 96 and a radial storage portion 98 . The axial receiving portion 96 is disposed between the first ratchet member 80 and the biasing member 84 in the axial direction D2. The radial receiving portion 98 extends from the axial receiving portion 96 in the axial direction D2. The radial receiving portion 98 is disposed radially inward of the biasing member 84 . The axial receiving portion 96 and the radial receiving portion 98 are provided integrally with each other as a one-piece unitary member. However, the axial receiving portion 96 may be a separate component from the radial receiving portion 98 .

如圖37中所見，自行車輪轂總成12包含密封結構100。密封結構100設置於鏈輪支撐主體28與輪轂主體36之間。輪轂主體36包括內部空間102。鏈輪支撐主體28、偏置構件84、第一棘輪構件80及第二棘輪構件82中之每一者至少部分地安置於輪轂主體36之內部空間102中。內部空間102由密封結構100密封。在此實施例中，潤滑劑未設置於內部空間102中。然而，自行車輪轂總成12可包含設置於內部空間102中之潤滑劑。相比於自行車輪轂總成12可包含設置於內部空間102中之潤滑劑的情況，若未設置潤滑劑，則可減小安置於內部空間102中之構件之間的每一間隙。 As seen in FIG. 37 , the bicycle hub assembly 12 includes a sealing structure 100 . The sealing structure 100 is disposed between the sprocket support body 28 and the hub body 36 . The hub body 36 includes an interior space 102 . Each of the sprocket support body 28 , the biasing member 84 , the first ratchet member 80 , and the second ratchet member 82 are at least partially disposed within the interior space 102 of the hub body 36 . The inner space 102 is sealed by the sealing structure 100 . In this embodiment, lubricant is not disposed in the interior space 102 . However, the bicycle hub assembly 12 may include a lubricant disposed within the interior space 102 . If no lubricant is provided, each gap between components disposed in the interior space 102 can be reduced compared to the case where the bicycle hub assembly 12 may include a lubricant disposed in the interior space 102 .

下文將參考圖37、圖41及圖42詳細描述自行車輪轂總成12之操作。 The operation of the bicycle hub assembly 12 will be described in detail below with reference to FIGS. 37 , 41 and 42 .

如圖37中所見，軸向方向D2包括第一軸向方向D21及與第一軸向方向D21相反之第二軸向方向D22。偏置力F5在第一軸向方向D21上自偏置構件84施加至收納構件94。偏置構件84之偏置力F5使收納構件94、第一 棘輪構件80、第二棘輪構件82及滑動構件90在第一軸向方向D21上朝向鏈輪支撐主體28偏置。此使第一棘輪齒80A與第二棘輪齒82A嚙合。 As seen in FIG. 37 , the axial direction D2 includes a first axial direction D21 and a second axial direction D22 opposite to the first axial direction D21 . A biasing force F5 is applied from the biasing member 84 to the receiving member 94 in the first axial direction D21. The biasing force F5 of the biasing member 84 causes the receiving member 94, the first The ratchet member 80 , the second ratchet member 82 and the slide member 90 are biased toward the sprocket support body 28 in the first axial direction D21 . This engages the first ratchet tooth 80A with the second ratchet tooth 82A.

此外，如圖41中所見，當踩踏扭矩T1在傳動旋轉方向D11上輸入至鏈輪支撐主體28時，由螺旋外部花鍵齒46在第一軸向方向D21上相對於鏈輪支撐主體28導引螺旋內部花鍵齒80H1。此強有力地使第一棘輪齒80A與第二棘輪齒82A嚙合。在此狀態中，踩踏扭矩T1經由第一棘輪構件80及第二棘輪構件82(圖37)自鏈輪支撐主體28傳輸至輪轂主體36(圖37)。 Furthermore, as seen in FIG. 41, when the pedaling torque T1 is input to the sprocket support body 28 in the transmission rotation direction D11, it is guided by the helical external spline teeth 46 relative to the sprocket support body 28 in the first axial direction D21. Lead helical internal spline teeth 80H1. This strongly engages the first ratchet tooth 80A with the second ratchet tooth 82A. In this state, the pedaling torque T1 is transmitted from the sprocket support body 28 to the hub body 36 ( FIG. 37 ) via the first ratchet member 80 and the second ratchet member 82 ( FIG. 37 ).

如圖41中所見，第一棘輪構件80接觸導引部分28G以藉由在惰轉期間在偏置構件84(圖37)與第一棘輪構件80之間產生之旋轉摩擦力F6與第二棘輪構件82脫嚙。如圖42中所見，在惰轉期間，惰轉扭矩T2在傳動旋轉方向D11上施加至輪轂主體36。惰轉扭矩T2經由第二棘輪構件82(圖37)自輪轂主體36(圖37)傳輸至第一棘輪構件80。此時，由螺旋外部花鍵齒46在第二軸向方向D22上相對於鏈輪支撐主體28導引螺旋內部花鍵齒80H1。此使第一棘輪構件80在第二軸向方向D22上抵抗偏置力F5相對於鏈輪支撐主體28移動。因此，第一棘輪構件80在第二軸向方向D22上移動遠離第二棘輪構件82，從而致使第一棘輪齒80A與第二棘輪齒82A之間的嚙合較弱。此允許第二棘輪構件82在傳動旋轉方向D11上相對於第一棘輪構件80旋轉，從而防止惰轉扭矩T2經由第一棘輪構件80及第二棘輪構件82自輪轂主體36傳輸至鏈輪支撐主體28。此時，第一棘輪齒80A在圓周方向D1上與第二棘輪齒82A一起滑動。 As seen in FIG. 41, the first ratchet member 80 contacts the guide portion 28G to engage the second ratchet member 80 by the rotational friction force F6 generated between the biasing member 84 (FIG. 37) and the first ratchet member 80 during idling. Member 82 disengages. As seen in FIG. 42 , during idling, an idling torque T2 is applied to the hub body 36 in the transmission rotational direction D11 . The idle torque T2 is transmitted from the hub body 36 ( FIG. 37 ) to the first ratchet member 80 via the second ratchet member 82 ( FIG. 37 ). At this time, the helical inner spline teeth 80H1 are guided relative to the sprocket support body 28 in the second axial direction D22 by the helical outer spline teeth 46 . This moves the first ratchet member 80 relative to the sprocket support body 28 in the second axial direction D22 against the biasing force F5. Accordingly, the first ratchet member 80 moves away from the second ratchet member 82 in the second axial direction D22 , thereby causing a weaker engagement between the first ratchet teeth 80A and the second ratchet teeth 82A. This allows the second ratchet member 82 to rotate relative to the first ratchet member 80 in the transmission rotation direction D11, thereby preventing the idle torque T2 from being transmitted from the hub body 36 to the sprocket support body via the first ratchet member 80 and the second ratchet member 82 28. At this time, the first ratchet teeth 80A slide together with the second ratchet teeth 82A in the circumferential direction D1.

第二實施例 second embodiment

下文將參看圖43及圖44描述根據第二實施例之自行車輪轂總成212。除輪轂主體36以外，自行車輪轂總成212具有與自行車輪轂總成12相同的 結構及/或構形。因此，具有與第一實施例中之彼等功能實質上相同的功能之元件在此處編號相同，且此處出於簡潔起見將不再次詳細地描述及/或說明。 A bicycle hub assembly 212 according to a second embodiment will be described below with reference to FIGS. 43 and 44 . The bicycle hub assembly 212 has the same features as the bicycle hub assembly 12 except for the hub body 36. structure and/or configuration. Therefore, elements having substantially the same functions as those in the first embodiment are numbered the same here, and will not be described and/or illustrated again in detail here for the sake of brevity.

如圖43中所見，自行車輪轂總成212包含輪轂主體236。輪轂主體236圍繞自行車輪轂總成212之旋轉中心軸線A1可旋轉地安裝於輪轂軸30上。輪轂主體236具有與第一實施例之輪轂主體36實質上相同的結構。 As seen in FIG. 43 , the bicycle hub assembly 212 includes a hub body 236 . The hub main body 236 is rotatably mounted on the hub shaft 30 around the rotation center axis A1 of the bicycle hub assembly 212 . The hub body 236 has substantially the same structure as the hub body 36 of the first embodiment.

在此實施例中，輪轂主體236包括第一輪輻安裝部分236A及第二輪輻安裝部分236B。第一輪輻安裝部分236A具有與第一實施例之第一輪輻安裝部分36A實質上相同的結構。第二輪輻安裝部分236B具有與第一實施例之第二輪輻安裝部分36B實質上相同的結構。 In this embodiment, the hub body 236 includes a first spoke mounting portion 236A and a second spoke mounting portion 236B. The first spoke mounting portion 236A has substantially the same structure as the first spoke mounting portion 36A of the first embodiment. The second spoke mounting portion 236B has substantially the same structure as the second spoke mounting portion 36B of the first embodiment.

第一輪輻安裝部分236A包括複數個第一附接孔36A1及複數個第一凹槽236A2。複數個第一凹槽236A2設置於第一輪輻安裝部分236A之外周邊上。複數個第一凹槽236A2係在圓周方向D1上配置。 The first spoke mounting portion 236A includes a plurality of first attachment holes 36A1 and a plurality of first grooves 236A2 . A plurality of first grooves 236A2 are disposed on the outer periphery of the first spoke mounting portion 236A. The plurality of first grooves 236A2 are arranged in the circumferential direction D1.

第二輪輻安裝部分236B包括複數個第二附接孔36B1及複數個第二凹槽236B2。複數個第二凹槽236B2設置於第二輪輻安裝部分236B之外周邊上。複數個第二凹槽236B2係在圓周方向D1上配置。 The second spoke mounting portion 236B includes a plurality of second attachment holes 36B1 and a plurality of second grooves 236B2. A plurality of second grooves 236B2 are disposed on the outer periphery of the second spoke mounting portion 236B. The plurality of second grooves 236B2 are arranged in the circumferential direction D1.

如圖44中所見，複數個第一附接孔36A1係以恆定間距在圓周方向D1上配置。複數個第一凹槽236A2係以恆定間距在圓周方向D1上配置。當沿旋轉中心軸線A1檢視時，第一凹槽236A2之圓周位置在圓周方向D1上自第一附接孔36A1之圓周位置偏移。第一凹槽236A2在圓周方向D1上設置於複數個第一附接孔36A1中之鄰近的兩個孔之間。 As seen in FIG. 44, the plurality of first attachment holes 36A1 are arranged at a constant pitch in the circumferential direction D1. The plurality of first grooves 236A2 are arranged at a constant pitch in the circumferential direction D1. When viewed along the rotation center axis A1, the circumferential position of the first groove 236A2 is offset from the circumferential position of the first attachment hole 36A1 in the circumferential direction D1. The first groove 236A2 is disposed between adjacent two holes among the plurality of first attachment holes 36A1 in the circumferential direction D1.

複數個第二附接孔36B1係以恆定間距在圓周方向D1上配置。複數個第二凹槽236B2係以恆定間距在圓周方向D1上配置。當沿旋轉中心軸線 A1檢視時，第二凹槽236B2之圓周位置在圓周方向D1上自第二附接孔36B1之圓周位置偏移。第二凹槽236B2在圓周方向D1上設置於複數個第二附接孔36B1中之鄰近的兩個孔之間。 The plurality of second attachment holes 36B1 are arranged at a constant pitch in the circumferential direction D1. The plurality of second grooves 236B2 are arranged at a constant pitch in the circumferential direction D1. When along the axis of rotation When A1 is viewed, the circumferential position of the second groove 236B2 is offset from the circumferential position of the second attachment hole 36B1 in the circumferential direction D1. The second groove 236B2 is disposed between adjacent two holes among the plurality of second attachment holes 36B1 in the circumferential direction D1.

第一輪輻安裝部分236A具有第一外徑DM236A。第二輪輻安裝部分236B具有第二外徑DM236B。第一外徑DM236A大於第二外徑DM236B，此係因為自由輪結構38需要相對於旋轉中心軸線A1自第一輪輻安裝部分236A徑向向內安置。然而，第一外徑DM236A可等於或小於第二外徑DM236B。 The first spoke mounting portion 236A has a first outer diameter DM236A. The second spoke mounting portion 236B has a second outer diameter DM236B. The first outer diameter DM236A is larger than the second outer diameter DM236B because the freewheel structure 38 needs to be positioned radially inward from the first spoke mounting portion 236A relative to the rotation center axis A1. However, the first outer diameter DM236A may be equal to or smaller than the second outer diameter DM236B.

當沿旋轉中心軸線A1檢視時，複數個第一附接孔36A1設置於第二輪輻安裝部分236B之徑向外部。當沿旋轉中心軸線A1檢視時，複數個第一附接孔36A1設置於複數個第二附接孔36B1及複數個第二凹槽236B2之徑向外部。 The plurality of first attachment holes 36A1 are provided radially outward of the second spoke mounting portion 236B when viewed along the rotation center axis A1. When viewed along the rotation center axis A1 , the plurality of first attachment holes 36A1 are disposed radially outside the plurality of second attachment holes 36B1 and the plurality of second grooves 236B2 .

當沿旋轉中心軸線A1檢視時，第二凹槽236B2之圓周位置與第一附接孔36A1之圓周位置實質上相同。當沿旋轉中心軸線A1檢視時，第一凹槽236A2之圓周位置與第二附接孔36B1之圓周位置實質上相同。第一凹槽236A2與第二附接孔36B1之間的此圓周位置關係允許輪輻容易且順利地安裝至第二輪輻安裝部分236B。 When viewed along the rotation center axis A1, the circumferential position of the second groove 236B2 is substantially the same as the circumferential position of the first attachment hole 36A1. When viewed along the rotation center axis A1 , the circumferential position of the first groove 236A2 is substantially the same as that of the second attachment hole 36B1 . This circumferential positional relationship between the first groove 236A2 and the second attachment hole 36B1 allows the spoke to be easily and smoothly mounted to the second spoke mounting portion 236B.

修改 Revise

如圖45中所見，在上述實施例中，外部花鍵齒40可包括在圓周方向D1上設置於外部花鍵傳動表面48與外部花鍵非傳動表面50之間的溝槽40G。溝槽40G減少自行車輪轂總成12或212之重量。 As seen in FIG. 45 , in the above-described embodiment, the external spline teeth 40 may include the groove 40G provided between the external spline transmission surface 48 and the external spline non-transmission surface 50 in the circumferential direction D1 . The groove 40G reduces the weight of the bicycle hub assembly 12 or 212 .

如圖46中所見，在上述實施例中，內部花鍵齒64可包括在圓周方向D1上設置於內部花鍵傳動表面66與內部花鍵非傳動表面68之間的溝槽 64G。溝槽64G減少自行車後鏈輪總成14之重量。 As seen in FIG. 46 , in the above-described embodiments, the inner spline teeth 64 may include grooves disposed between the inner spline drive surface 66 and the inner spline non-drive surface 68 in the circumferential direction D1 64G. The groove 64G reduces the weight of the rear sprocket assembly 14 of the bicycle.

如本文中所使用之術語「包含」及其派生詞意欲為指定所陳述特徵、元件、組件、群組、整數及/或步驟之存在但不排除其他未陳述特徵、元件、組件、群組、整數及/或步驟之存在的開放術語。此概念亦適用於類似含義之詞語，例如術語「具有」、「包括」及其派生詞。 As used herein, the term "comprises" and its derivatives are intended to specify the presence of stated features, elements, components, groups, integers and/or steps but not to exclude other unstated features, elements, components, groups, An open term for the presence of integers and/or steps. This concept also applies to words of similar meaning, such as the terms "having", "including" and their derivatives.

術語「構件」、「區段」、「部分」、「部件」、「元件」、「主體」及「結構」當以單數形式使用時可具有單一部件或複數個部件之雙重含義。 The terms "member", "section", "portion", "part", "element", "body" and "structure" when used in the singular can have the dual meaning of a single part or a plurality of parts.

諸如本申請案中敍述的「第一」及「第二」之序數數目僅為標識符，而不具有任何其他含義，例如特定次序及類似者。此外，例如，術語「第一元件」自身不暗示「第二元件」之存在，且術語「第二元件」自身不暗示「第一元件」之存在。 Ordinal numbers such as "first" and "second" described in this application are only identifiers and do not have any other meaning, such as a specific order and the like. Furthermore, for example, the term "first element" does not imply the existence of a "second element" by itself, and the term "second element" does not imply the existence of a "first element" by itself.

如本文中所使用之術語「對」可涵蓋除其中成對元件具有彼此相同的形狀或結構之構形外之其中成對元件具有彼此不同的形狀或結構之構形。 The term "pair" as used herein may encompass configurations in which paired elements have different shapes or structures from each other, in addition to configurations in which paired elements have the same shape or structure as each other.

因此，術語「一」、「一或多個」及「至少一個」在本文中可互換地使用。 Accordingly, the terms "a", "one or more" and "at least one" are used interchangeably herein.

最後，如本文中所使用之諸如「實質上」、「大約」及「大致」之程度術語意謂所修飾之術語之合理量之偏差以使得最終結果並無顯著改變。本申請案中所描述之所有數值可被理解為包括諸如「實質上」、「大約」及「大致」之術語。 Finally, terms of degree such as "substantially", "about" and "approximately" as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. All numerical values described in this application can be understood to include terms such as "substantially", "about" and "approximately".

顯然，鑒於以上教示，本發明之眾多修改及變化係可能的。因此應理解，在所附申請專利範圍之範疇內，可以不同於如本文中特定描述之方式的其他方式實踐本發明。 Obviously many modifications and variations of the present invention are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the invention may be practiced otherwise than as specifically described herein.

28:鏈輪支撐主體 28: Sprocket support body

28A:內部帶螺紋部分 28A: internal threaded part

40:外部花鍵齒 40: External spline teeth

41:基座支撐件 41: Base support

42:較大直徑部分 42: Larger diameter part

44:凸緣 44: Flange

46:螺旋外部花鍵齒 46: Helical external spline teeth

A1:旋轉中心軸線 A1: Rotation center axis

D2:軸向方向 D2: axial direction

Claims (28)

一種自行車輪轂總成，其包含：一輪轂軸；一輪轂主體，其圍繞該自行車輪轂總成之一旋轉中心軸線可旋轉地安裝於該輪轂軸上；一鏈輪支撐主體，其圍繞該旋轉中心軸線可旋轉地安裝於該輪轂軸上，該鏈輪支撐主體包括複數個外部花鍵齒，該複數個外部花鍵齒包括複數個外部花鍵傳動表面及複數個外部花鍵非傳動表面，該複數個外部花鍵傳動表面用以在踩踏期間接收來自一自行車後鏈輪總成之傳動旋轉力，該複數個外部花鍵傳動表面之每一者包括：一徑向最外邊緣；一徑向最內邊緣；及一徑向長度，其係自該徑向最外邊緣至該徑向最內邊緣界定，且該複數個外部花鍵傳動表面之該等徑向長度之一總和等於或大於7mm；該複數個外部花鍵傳動表面之每一者，具有界定於該外部花鍵傳動表面及自該旋轉中心軸線延伸至該外部花鍵傳動表面的該徑向最外邊緣的一第一徑向線之間的一第一外部花鍵表面角；該第一外部花鍵表面角在0度至10度之範圍內；及一自由輪結構，其包括：一第一棘輪構件，其包括至少一個第一棘輪齒；及一第二棘輪構件，其包括經構形以按一扭矩傳輸方式與該至少一 個第一棘輪齒嚙合之至少一個第二棘輪齒，該第一棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之一者嚙合，該第二棘輪構件經構形以按一扭矩傳輸方式與該輪轂主體及該鏈輪支撐主體中之另一者嚙合，該第一棘輪構件及該第二棘輪構件中之至少一者可在相對於該旋轉中心軸線之一軸向方向上相對於該輪轂軸移動。 A bicycle hub assembly, which comprises: a hub shaft; a hub body, which is rotatably mounted on the hub shaft around a rotation center axis of the bicycle hub assembly; a sprocket supporting body, which surrounds the rotation center The axis is rotatably mounted on the hub shaft, the sprocket support body includes a plurality of external spline teeth, and the plurality of external spline teeth includes a plurality of external spline transmission surfaces and a plurality of external spline non-transmission surfaces, the A plurality of external splined drive surfaces for receiving drive rotational force from a bicycle rear sprocket assembly during pedaling, each of the plurality of external splined drive surfaces comprising: a radially outermost edge; a radially outermost edge; an innermost edge; and a radial length defined from the radially outermost edge to the radially innermost edge, and the sum of one of the radial lengths of the plurality of external splined drive surfaces is equal to or greater than 7mm each of the plurality of external splined surfaces has a first radial direction defined on the external splined surface and extending from the central axis of rotation to the radially outermost edge of the external splined surface a first external spline surface angle between the lines; the first external spline surface angle is in the range of 0° to 10°; and a freewheel structure comprising: a first ratchet member comprising at least one first ratchet teeth; and a second ratchet member comprising a torque transmission pattern configured to communicate with the at least one At least one second ratchet tooth engaged by a first ratchet tooth, the first ratchet member configured to engage with one of the hub body and the sprocket support body in a torque transmission manner, the second ratchet member via configured to engage the other of the hub body and the sprocket support body in a torque transmission manner, at least one of the first ratchet member and the second ratchet member can be positioned relative to the rotation center axis moves in an axial direction relative to the hub axle. 如請求項1之自行車輪轂總成，其中該複數個外部花鍵齒具有一第一外部周節角及不同於該第一外部周節角之一第二外部周節角。 The bicycle hub assembly according to claim 1, wherein the plurality of external spline teeth have a first external pitch angle and a second external pitch angle different from the first external pitch angle. 如請求項1之自行車輪轂總成，其中該等徑向長度之該總和等於或大於10mm。 The bicycle hub assembly according to claim 1, wherein the sum of the radial lengths is equal to or greater than 10 mm. 如請求項1之自行車輪轂總成，其中該等徑向長度之該總和等於或大於15mm。 The bicycle hub assembly according to claim 1, wherein the sum of the radial lengths is equal to or greater than 15mm. 如請求項1之自行車輪轂總成，其中該至少一個第一棘輪齒安置於該第一棘輪構件之一軸向表面上，該至少一個第二棘輪齒安置於該第二棘輪構件之一軸向表面上，且該第二棘輪構件之該軸向表面面朝該第一棘輪構件之該軸向表面。 The bicycle hub assembly according to claim 1, wherein the at least one first ratchet tooth is arranged on an axial surface of the first ratchet member, and the at least one second ratchet tooth is arranged on an axial surface of the second ratchet member on the surface, and the axial surface of the second ratchet member faces the axial surface of the first ratchet member. 如請求項1之自行車輪轂總成，其中 該鏈輪支撐主體包括具有一第一螺旋花鍵之一外周邊表面，且該第一棘輪構件經構形以按一扭矩傳輸方式與該鏈輪支撐主體嚙合，且包括與該第一螺旋花鍵配合之一第二螺旋花鍵。 Such as the bicycle hub assembly of claim 1, wherein The sprocket support body includes an outer peripheral surface having a first helical spline, and the first ratchet member is configured to engage the sprocket support body in a torque transmission manner and includes a first helical spline The key mates with one of the second helical splines. 如請求項6之自行車輪轂總成，其中該第一棘輪構件係在藉由自該鏈輪支撐主體施加之一第一推力傳動期間經由與該第一螺旋花鍵配合之該第二螺旋花鍵在相對於該鏈輪支撐主體之該軸向方向上可移動地安裝。 The bicycle hub assembly according to claim 6, wherein the first ratchet member is transmitted through the second helical spline cooperating with the first helical spline during transmission by a first thrust applied from the sprocket support body Mounted movably in the axial direction relative to the sprocket support body. 如請求項1之自行車輪轂總成，其中該至少一個第二棘輪齒與該至少一個第一棘輪齒嚙合以將一旋轉力自該鏈輪支撐主體傳輸至該輪轂主體。 The bicycle hub assembly of claim 1, wherein the at least one second ratchet tooth engages with the at least one first ratchet tooth to transmit a rotational force from the sprocket support body to the hub body. 如請求項6之自行車輪轂總成，其中該鏈輪支撐主體具有設置於該外周邊表面上之一導引部分以在惰轉期間朝向該輪轂主體導引該第一棘輪構件。 The bicycle hub assembly according to claim 6, wherein the sprocket support body has a guide portion provided on the outer peripheral surface to guide the first ratchet member toward the hub body during idling. 如請求項9之自行車輪轂總成，其中該導引部分在惰轉期間朝向該輪轂主體導引該第一棘輪構件以解除該至少一個第一棘輪齒與該至少一個第二棘輪齒之間的一嚙合。 The bicycle hub assembly according to claim 9, wherein the guide portion guides the first ratchet member toward the hub body during idling to release the at least one first ratchet tooth and the at least one second ratchet tooth One mesh. 如請求項9之自行車輪轂總成，其中該導引部分在相對於該鏈輪支撐主體之至少一圓周方向上延伸。 The bicycle hub assembly according to claim 9, wherein the guide portion extends in at least one circumferential direction relative to the sprocket supporting body. 如請求項9之自行車輪轂總成，其中該導引部分經配置以相對於該第一螺旋花鍵界定一鈍角。 The bicycle hub assembly of claim 9, wherein the pilot portion is configured to define an obtuse angle relative to the first helical spline. 如請求項1之自行車輪轂總成，其中該第二棘輪構件包括一輪轂主體嚙合部分，該輪轂主體嚙合部分按一扭矩傳輸方式與該輪轂主體嚙合以經由該輪轂主體嚙合部分將一旋轉力自該第一棘輪構件傳輸至該輪轂主體。 The bicycle hub assembly as claimed in claim 1, wherein the second ratchet member includes a hub body engaging portion, and the hub body engaging portion engages with the hub body in a torque transmission manner to transfer a rotational force from the hub body through the hub body engaging portion The first ratchet member is transmitted to the hub body. 如請求項13之自行車輪轂總成，其中該輪轂主體嚙合部分及該輪轂主體中之一者包括相對於該自行車輪轂總成之該旋轉中心軸線徑向延伸的至少一個突起部，且該輪轂主體嚙合部分及該輪轂主體中之另一者包括與該至少一個突起部嚙合之至少一個凹槽。 The bicycle hub assembly according to claim 13, wherein one of the hub body engaging portion and the hub body includes at least one protrusion extending radially relative to the rotation center axis of the bicycle hub assembly, and the hub body The other of the engaging portion and the hub body includes at least one groove engaging the at least one protrusion. 如請求項1之自行車輪轂總成，其進一步包含一偏置構件，其安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 The bicycle hub assembly of claim 1, further comprising a biasing member disposed between the hub body and the first ratchet member to bias the first ratchet member toward the second ratchet member in the axial direction Ratchet member. 如請求項9之自行車輪轂總成，其進一步包含一偏置構件，其安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件，該第二棘輪構件按一扭矩傳輸方式與該輪轂主體嚙合， 該偏置構件與該輪轂主體嚙合以與該輪轂主體一起旋轉，且該第一棘輪構件接觸該導引部分以藉由在惰轉期間在該偏置構件與該第一棘輪構件之間產生之一旋轉摩擦力與該第二棘輪構件脫嚙。 The bicycle hub assembly according to claim 9, further comprising a biasing member disposed between the hub body and the first ratchet member to bias the first ratchet member toward the second ratchet member in the axial direction a ratchet member, the second ratchet member engaging the hub body in a torque transmitting manner, The biasing member is engaged with the hub main body to rotate with the hub main body, and the first ratchet member contacts the guide portion to create a gap between the biasing member and the first ratchet member during idling. A rotational friction force disengages the second ratchet member. 如請求項1之自行車輪轂總成，其中該至少一個第一棘輪齒包括複數個第一棘輪齒，且該至少一個第二棘輪齒包括複數個第二棘輪齒。 The bicycle hub assembly according to claim 1, wherein the at least one first ratchet tooth includes a plurality of first ratchet teeth, and the at least one second ratchet tooth includes a plurality of second ratchet teeth. 如請求項1之自行車輪轂總成，其中該第一棘輪構件及該第二棘輪構件中之每一者具有一環狀形狀。 The bicycle hub assembly of claim 1, wherein each of the first ratchet member and the second ratchet member has a ring shape. 如請求項1之自行車輪轂總成，其中該鏈輪支撐主體包括一鄰接件，該鄰接件用以鄰接該第二棘輪構件以限制該第二棘輪構件遠離該輪轂主體之一軸向移動，且該第一棘輪構件安置於該第二棘輪構件之一軸向側上，該第二棘輪構件在該軸向方向上與該鏈輪支撐主體之該鄰接件相對。 The bicycle hub assembly of claim 1, wherein the sprocket support body includes an abutment for abutting against the second ratchet member to limit axial movement of the second ratchet member away from the hub body, and The first ratchet member is arranged on an axial side of the second ratchet member, which is opposite the abutment of the sprocket support body in the axial direction. 如請求項19之自行車輪轂總成，其進一步包含一偏置構件，其安置於該輪轂主體與該第一棘輪構件之間以在該軸向方向上朝向該第二棘輪構件偏置該第一棘輪構件。 The bicycle hub assembly according to claim 19, further comprising a biasing member disposed between the hub body and the first ratchet member to bias the first ratchet member toward the second ratchet member in the axial direction Ratchet member. 如請求項20之自行車輪轂總成，其中該輪轂主體包括一內部空間， 該鏈輪支撐主體之一外周邊表面支撐該第一棘輪構件及該第二棘輪構件，且該鏈輪支撐主體、該偏置構件、該第一棘輪構件及該第二棘輪構件中之每一者至少部分地安置於該輪轂主體之該內部空間中。 The bicycle hub assembly as claimed in item 20, wherein the hub body includes an inner space, An outer peripheral surface of the sprocket support body supports the first ratchet member and the second ratchet member, and each of the sprocket support body, the biasing member, the first ratchet member and the second ratchet member or at least partially disposed in the inner space of the hub body. 如請求項1之自行車輪轂總成，其中該輪轂主體包括：一第一輪輻安裝部分，其具有一第一軸向最外部分；一第二輪輻安裝部分，其具有一第二軸向最外部分；及一第一軸向長度，其在該軸向方向上界定於該第一輪輻安裝部分之該第一軸向最外部分與該第二輪輻安裝部分之該第二軸向最外部分之間，該第一軸向長度等於或大於55mm。 The bicycle hub assembly as claimed in claim 1, wherein the hub body comprises: a first spoke mounting portion having a first axially outermost portion; a second spoke mounting portion having a second axially outermost portion outer portion; and a first axial length defined in the axial direction between the first axially outermost portion of the first spoke mounting portion and the second axially outermost portion of the second spoke mounting portion Between the outer parts, the first axial length is equal to or greater than 55mm. 如請求項22之自行車輪轂總成，其中該第一軸向長度等於或大於60mm。 The bicycle hub assembly according to claim 22, wherein the first axial length is equal to or greater than 60mm. 如請求項22之自行車輪轂總成，其中該第一軸向長度等於或大於65mm。 The bicycle hub assembly according to claim 22, wherein the first axial length is equal to or greater than 65mm. 如請求項22之自行車輪轂總成，其中該輪轂軸包括：一第一軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一 第一部分；一第二軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分；及一第二軸向長度，其在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間，該第二軸向長度等於或大於140mm。 The bicycle hub assembly as claimed in claim 22, wherein the hub axle includes: a first axial frame abutment surface configured to be in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame on one of the frames adjoining the bike a first portion; a second axial frame abutment surface configured to abut a second portion of the bicycle frame in the axial direction in the state in which the bicycle hub assembly is mounted to the bicycle frame; and a A second axial length defined in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface is equal to or greater than 140 mm. 如請求項22之自行車輪轂總成，其中該輪轂軸包括：一第一軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分；一第二軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分；及一第二軸向長度，其在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間，該第二軸向長度等於或大於145mm。 The bicycle hub assembly as claimed in claim 22, wherein the hub axle includes: a first axial frame abutment surface configured to be in the axial direction in a state where the bicycle hub assembly is mounted to a bicycle frame a first portion adjacent to the bicycle frame; a second axial frame abutment surface configured to abut the bicycle frame in the axial direction in the state in which the bicycle hub assembly is mounted to the bicycle frame a second portion; and a second axial length defined in the axial direction between the first axial frame abutment surface and the second axial frame abutment surface, the second axial length being equal to or Greater than 145mm. 如請求項22之自行車輪轂總成，其中該輪轂軸包括：一第一軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝 至一自行車框架之一狀態中在該軸向方向上鄰接該自行車框架之一第一部分；一第二軸向框架鄰接表面，其經構形以在該自行車輪轂總成安裝至該自行車框架之該狀態中在該軸向方向上鄰接該自行車框架之一第二部分；及一第二軸向長度，其在該軸向方向上界定於該第一軸向框架鄰接表面與該第二軸向框架鄰接表面之間，該第二軸向長度等於或大於147mm。 The bicycle hub assembly of claim 22, wherein the hub axle includes: a first axial frame abutment surface configured to be mounted on the bicycle hub assembly a first portion adjoining the bicycle frame in the axial direction in a state to a bicycle frame; a second axial frame abutment surface configured to mount the bicycle hub assembly to the bicycle frame a second portion adjacent to the bicycle frame in the axial direction; and a second axial length defined in the axial direction between the first axial frame abutment surface and the second axial frame Between abutment surfaces, the second axial length is equal to or greater than 147 mm. 如請求項1之自行車輪轂總成，進一步包含：一制動轉子支撐主體，其包括經構形以與一自行車制動轉子嚙合之至少一個額外外部花鍵齒，該至少一個額外外部花鍵齒具有大於該複數個外部花鍵齒之一外部花鍵頂徑之一額外外部花鍵頂徑。 The bicycle hub assembly of claim 1, further comprising: a brake rotor support body including at least one additional external spline tooth configured to engage a bicycle brake rotor, the at least one additional external spline tooth having a diameter greater than One of the external spline top diameters and one of the extra external spline top diameters of the plurality of external spline teeth.
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US15/608,924 US11332213B2 (en) 2017-05-30 2017-05-30 Bicycle rear sprocket assembly and bicycle drive train
US15/608,924 2017-05-30
US15/608,915 2017-05-30
US15/608,915 US11059541B2 (en) 2017-05-30 2017-05-30 Bicycle hub assembly
US15/673,346 2017-08-09
US15/673,346 US10377174B2 (en) 2017-08-09 2017-08-09 Bicycle hub assembly
US15/686,179 US11220309B2 (en) 2017-05-30 2017-08-25 Bicycle rear sprocket assembly
US15/686,177 2017-08-25
US15/686,177 US11179967B2 (en) 2017-05-30 2017-08-25 Bicycle hub assembly
US15/686,179 2017-08-25

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TW111140632A TW202323130A (en) 2017-05-30 2018-05-11 Bicycle rear sprocket assembly
TW107116085A TWI707801B (en) 2017-05-30 2018-05-11 Bicycle rear sprocket assembly
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TW107116085A TWI707801B (en) 2017-05-30 2018-05-11 Bicycle rear sprocket assembly
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US11603166B2 (en) * 2021-04-29 2023-03-14 Shimano Inc. Rear sprocket assembly and lock device
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