TW202106561A - Transmission device for bicycle - Google Patents

Transmission device for bicycle Download PDF

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Publication number
TW202106561A
TW202106561A TW108127308A TW108127308A TW202106561A TW 202106561 A TW202106561 A TW 202106561A TW 108127308 A TW108127308 A TW 108127308A TW 108127308 A TW108127308 A TW 108127308A TW 202106561 A TW202106561 A TW 202106561A
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TW
Taiwan
Prior art keywords
transmission
transmission gear
clutch
gear
bicycle
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TW108127308A
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Chinese (zh)
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TWI721517B (en
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劉文桂
劉兆軒
劉友淳
劉懿珊
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劉文桂
劉兆軒
劉友淳
劉懿珊
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Application filed by 劉文桂, 劉兆軒, 劉友淳, 劉懿珊 filed Critical 劉文桂
Priority to TW108127308A priority Critical patent/TWI721517B/en
Priority to CN201910750476.XA priority patent/CN112298446B/en
Publication of TW202106561A publication Critical patent/TW202106561A/en
Application granted granted Critical
Publication of TWI721517B publication Critical patent/TWI721517B/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
    • B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
    • B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Transmission Devices (AREA)

Abstract

A transmission device for bicycle includes a case, a mandrel, an assembling member, a transmission assembly, a shift assembly and a clutch assembly. The mandrel is rotatably disposed on the case along an axial direction. The assembling member has a driving gear. The transmission assembly is rotatably disposed on the case and meshed with the driving gear. The shift assembly includes a first shift gear and a second shift gear. The transmission assembly is connected with the first shift gear and the second shift gear in a rotational-connection relationship. The clutch assembly includes a clutch member.

Description

自行車變速裝置Bicycle gear

本發明係有關於一種自行車變速裝置。The invention relates to a bicycle speed change device.

按，一般自行車為了因應騎乘時之路面不同斜度以及速度需求，便會在鍊條的前後兩端設置齒盤，並利用變速器將鍊條進行換齒的動作以進行變速，舉例說明，當前齒盤具有3段變速功能，後齒盤具有6段變速功能，便可具有18種段位。然而，當欲使自行車之變速功能更多時，便需要將齒盤的段位增加，而使得齒盤的厚度變高，如此會導致騎乘時之不便，且齒盤的段位過多容易導致變速器無法精準地變換到各個段位，存在亟待改善之缺弊。According to the general bicycle, in order to respond to the different slopes and speed requirements of the road when riding, a chainring is set at the front and rear ends of the chain, and the chain is used to change gears to change gears. For example, the current chainring It has a 3-stage speed change function, and the rear chainring has a 6-stage speed change function, which can have 18 stages. However, when you want to increase the speed of the bicycle, you need to increase the number of gears, which makes the thickness of the gears higher. This will cause inconvenience during riding, and too many gears can easily cause the transmission to fail. Accurately change to each rank, there are shortcomings that need to be improved.

因此，有必要提供一種新穎且具有進步性之自行車變速裝置，以解決上述之問題。Therefore, it is necessary to provide a novel and progressive bicycle shifting device to solve the above-mentioned problems.

本發明之主要目的在於提供一種自行車變速裝置，可使自行車大幅提高變速的段位，且不會使齒盤過厚而導致變速器無法順利跳齒，因此於使用上更方便。The main purpose of the present invention is to provide a bicycle speed change device, which can greatly increase the speed of the bicycle, and will not make the gear plate too thick and cause the gearbox to skip gears smoothly, so it is more convenient to use.

為達成上述目的，本發明提供一種自行車變速裝置，其包括一殼體、一心軸、一組接件、一傳動組件、一變速組件及一離合組件。該殼體供設於一自行車。該心軸沿一軸向樞設於該殼體，該心軸沿該軸向之兩端分別供與自行車之一曲柄相組接。該組接件供與自行車之一齒盤相組接，該組接件另設有一相連動之一驅動齒輪。該傳動組件樞設於該殼體並與該驅動齒輪相嚙合。該變速組件包括可相對該殼體轉動之一第一變速齒輪及一第二變速齒輪，該第一變速齒輪與該第二變速齒輪分別與該傳動組件轉動連接。該離合組件包括一離合件，該離合件與該心軸連動組接並可沿該軸向移動於一第一位置及一第二位置之間。其中，當該離合件位於該第一位置時，該離合件與該第一變速齒輪轉動連接，該心軸即可帶動該第一變速齒輪、該傳動組件及該驅動齒輪轉動；當該離合件位於該第二位置時，該離合件與該第二變速齒輪轉動連接，該心軸即可帶動該第二變速齒輪、該傳動組件及該驅動齒輪轉動。In order to achieve the above objective, the present invention provides a bicycle transmission device, which includes a housing, a spindle, a set of connecting members, a transmission assembly, a transmission assembly, and a clutch assembly. The shell is provided for a bicycle. The spindle is pivoted on the housing along an axial direction, and the two ends of the spindle along the axial direction are respectively assembled and connected with a crank of a bicycle. The assembling piece is used for assembling with a chainring of the bicycle, and the assembling piece is additionally provided with a driving gear which is connected with one another. The transmission assembly is pivoted on the housing and meshed with the driving gear. The speed change assembly includes a first speed change gear and a second speed change gear rotatable relative to the housing, and the first speed change gear and the second speed change gear are respectively rotatably connected with the transmission assembly. The clutch assembly includes a clutch component, which is connected to the mandrel in a continuous manner and can move between a first position and a second position along the axial direction. Wherein, when the clutch is in the first position, the clutch is rotatably connected with the first transmission gear, and the spindle can drive the first transmission gear, the transmission assembly and the drive gear to rotate; when the clutch is When in the second position, the clutch is rotatably connected with the second transmission gear, and the spindle can drive the second transmission gear, the transmission assembly and the drive gear to rotate.

以下僅以實施例說明本發明可能之實施態樣，然並非用以限制本發明所欲保護之範疇，合先敘明。The following examples are only used to illustrate the possible implementation aspects of the present invention, but they are not intended to limit the scope of protection of the present invention, and are described first.

請參考圖1至圖7，其顯示本發明之一較佳實施例，本發明之自行車變速裝置包括一殼體1、一心軸2、一組接件3、一傳動組件4、一變速組件5及一離合組件6。Please refer to Figures 1 to 7, which show a preferred embodiment of the present invention. The bicycle speed change device of the present invention includes a housing 1, a spindle 2, a set of connecting parts 3, a transmission assembly 4, and a speed change assembly 5. And a clutch assembly 6.

該殼體1供設於一自行車9，於本實施例中該殼體1連接於該自行車9之立管、下管及後下叉管，即習知自行車9之五通管的位置。The housing 1 is provided on a bicycle 9. In this embodiment, the housing 1 is connected to the seat tube, down tube and chainstay tube of the bicycle 9, that is, the position of the bottom bracket tube of the conventional bicycle 9.

該心軸2沿一軸向樞設於該殼體1，該心軸2沿該軸向之兩端分別供與自行車9之一曲柄91相組接，當踩踏該二曲柄91之踏板時即可帶動該心軸2轉動。The spindle 2 is pivoted to the housing 1 along an axial direction. The two ends of the spindle 2 along the axial direction are respectively assembled with a crank 91 of the bicycle 9. When the pedals of the two cranks 91 are stepped on, The mandrel 2 can be driven to rotate.

該組接件3供與自行車9之一齒盤92相組接，該組接件3另設有一相連動之一驅動齒輪31。於本實施例中該組接件3之外周壁設有一外螺紋部32及一沿該軸向延伸之鍵槽33，該鍵槽33供設有鍵體，該齒盤92供螺接於該外螺紋部32且供卡抵於該鍵體，以將該齒盤92固定於該組接件3。The assembling member 3 is for assembling with a chainring 92 of the bicycle 9, and the assembling member 3 is additionally provided with a driving gear 31 which is connected to one another. In this embodiment, the outer peripheral wall of the assembling member 3 is provided with an external thread portion 32 and a key groove 33 extending along the axial direction. The key groove 33 is provided with a key body, and the toothed disc 92 is screwed to the external thread. The portion 32 is used for clamping against the key body, so as to fix the chainring 92 to the assembling member 3.

該傳動組件4樞設於該殼體1並與該驅動齒輪31相嚙合。The transmission assembly 4 is pivoted on the housing 1 and meshed with the driving gear 31.

該變速組件5包括可相對該殼體1轉動之一第一變速齒輪51及一第二變速齒輪52，該第一變速齒輪51與該第二變速齒輪52分別與該傳動組件4轉動連接，於本實施例中該第一變速齒輪51與該第二變速齒輪52之徑向尺寸相異，該第一變速齒輪51之徑向尺寸小於該第二變速齒輪52，以使該第一變速齒輪51具有省力費時之效果，該第二變速齒輪52具有費力省時之效果。The transmission assembly 5 includes a first transmission gear 51 and a second transmission gear 52 rotatable relative to the housing 1. The first transmission gear 51 and the second transmission gear 52 are respectively rotatably connected to the transmission assembly 4, In this embodiment, the radial dimensions of the first transmission gear 51 and the second transmission gear 52 are different, and the radial dimension of the first transmission gear 51 is smaller than that of the second transmission gear 52, so that the first transmission gear 51 It has the effect of saving labor and time, and the second transmission gear 52 has the effect of saving labor and time.

該離合組件6包括一離合件61，該離合件61與該心軸2連動組接並可沿該軸向移動於一第一位置及一第二位置之間。The clutch assembly 6 includes a clutch member 61 that is connected to the spindle 2 in a continuous manner and can move between a first position and a second position along the axial direction.

其中，當該離合件61位於該第一位置時，該離合件61與該第一變速齒輪51轉動連接，該心軸2即可帶動該第一變速齒輪51、該傳動組件4及該驅動齒輪31轉動，以使騎乘者踩踏該二曲柄91之踏柄時具有省力費時之效果，以進行起步或爬坡；當該離合件61位於該第二位置時，該離合件61與該第二變速齒輪52轉動連接，該心軸2即可帶動該第二變速齒輪52、該傳動組件4及該驅動齒輪31轉動，以使騎乘者踩踏該二曲柄91之踏柄時具有省力費時之效果，以進行高速騎乘。因此，假設原本該自行車9具有18段變速效果，藉由本發明可使該自行車9具有36段變速效果，以提供騎乘者更好的變速選擇以及避免齒盤92過厚，因此本發明可大幅提高該自行車9之變速的段位，且不會使齒盤92過厚而導致變速器無法順利跳齒，因此於使用上更方便。Wherein, when the clutch 61 is in the first position, the clutch 61 is rotatably connected with the first transmission gear 51, and the spindle 2 can drive the first transmission gear 51, the transmission assembly 4, and the drive gear 31 is rotated so that the rider has the effect of saving effort and time when stepping on the pedals of the two cranks 91 for starting or climbing; when the clutch 61 is in the second position, the clutch 61 and the second The transmission gear 52 is rotatably connected, and the spindle 2 can drive the second transmission gear 52, the transmission assembly 4 and the drive gear 31 to rotate, so that the rider can save effort and time when stepping on the pedals of the two cranks 91 , For high-speed riding. Therefore, assuming that the bicycle 9 originally has an 18-segment shifting effect, the present invention can enable the bicycle 9 to have a 36-segment shifting effect, so as to provide riders with better gear shifting options and avoid over-thickness of the chainring 92. Therefore, the present invention can greatly The gear shifting position of the bicycle 9 is improved, and the gear wheel 92 will not be too thick to cause the gearbox to skip gears smoothly, so it is more convenient to use.

具體而言，該離合件61不可相對轉動地套設於該心軸2並可相對該心軸2沿該軸向移動於該第一位置與該第二位置之間，該第一變速齒輪51及該第二變速齒輪52可相對轉動地套設於該心軸2且分別位於該離合件61之軸向兩側。Specifically, the clutch member 61 is non-rotatably sleeved on the spindle 2 and can move between the first position and the second position in the axial direction relative to the spindle 2, and the first transmission gear 51 The second transmission gear 52 and the second transmission gear 52 are relatively rotatably sleeved on the spindle 2 and are respectively located on both sides of the clutch 61 in the axial direction.

較佳地，該離合件61沿該軸向之相對兩側分別設有一第一卡部611，該第一變速齒輪51及該第二變速齒輪52朝向該離合件61之一側分別設有一與該第一卡部611相卡抵之第二卡部53，藉由該第一卡部611與該第二卡部53相卡抵以使該離合件61與該第一變速齒輪51或該第二變速齒輪52連帶轉動。於本實施例中各該第一卡部611與各該第二卡部53其中一者為複數沿該軸向延伸之凸部612，另一者為複數徑向凹設之凹孔531，該等凸部612可選擇性地***該等凹孔531，於本實施例中該第一卡部611為複數凸部612，該第二卡部53為複數凹孔531，各該凹孔531沿周向設有一傾斜之導引面532，以使該離合件61在轉動時，該等凸部612仍可順利***該等凹孔531。Preferably, opposite sides of the clutch 61 along the axial direction are respectively provided with a first clamping portion 611, and the first transmission gear 51 and the second transmission gear 52 are respectively provided with a and The first locking portion 611 is locked against the second locking portion 53, and the first locking portion 611 is locked against the second locking portion 53 so that the clutch 61 and the first transmission gear 51 or the second The second transmission gear 52 rotates continuously. In this embodiment, one of each of the first clamping portion 611 and each of the second clamping portion 53 is a plurality of convex portions 612 extending along the axial direction, and the other is a plurality of concave holes 531 recessed in the radial direction. The convex portions 612 can be selectively inserted into the concave holes 531. In this embodiment, the first clamping portion 611 is a plurality of convex portions 612, and the second clamping portion 53 is a plurality of concave holes 531. An inclined guide surface 532 is provided in the circumferential direction, so that when the clutch 61 rotates, the convex portions 612 can still be inserted into the concave holes 531 smoothly.

進一步的說，該離合組件6另包括一螺桿62及一致動件63，該螺桿62沿該軸向樞設於該殼體1，該致動件63一端螺接於該螺桿62，另一端卡抵於該離合件61以帶動該離合件61沿該軸向移動。於本實施例中該螺桿62之一端套設有一捲片彈簧64，該捲片彈簧64之一端供連接一纜線93，該捲片彈簧64常態地將螺桿62朝一方向轉動以使該致動件63常態地將該離合件61朝該第一位置之方向移動，其中，該纜線93之一端連接於該自行車9之下管的一撥桿，藉由扳動該撥桿，即可帶動該纜線93移動以拉動該捲片彈簧64。Furthermore, the clutch assembly 6 further includes a screw 62 and an actuating member 63. The screw 62 is pivoted to the housing 1 along the axial direction. One end of the actuating member 63 is screwed to the screw 62, and the other end is clamped. The clutch member 61 is pressed to drive the clutch member 61 to move along the axial direction. In this embodiment, one end of the screw 62 is sheathed with a coil spring 64, one end of the coil spring 64 is connected to a cable 93, the coil spring 64 normally rotates the screw 62 in one direction to make the actuation The member 63 normally moves the clutch member 61 toward the direction of the first position, wherein one end of the cable 93 is connected to a lever of the lower tube of the bicycle 9. By pulling the lever, the lever can be driven The cable 93 moves to pull the coil spring 64.

較佳地，該離合件61徑向設有二環凸緣613，該致動件63遠離該螺桿62之一端設有一C字型之套接件631，該套接件631套設於該離合件61之外周壁並卡抵於該二環凸緣613之間，以帶動該離合件61沿該軸向移動且不會干涉該離合件61轉動。Preferably, the clutch 61 is radially provided with two ring flanges 613, and the actuator 63 is provided with a C-shaped socket 631 at one end away from the screw 62, and the socket 631 is sleeved on the clutch The outer peripheral wall of the member 61 is clamped between the two ring flanges 613 to drive the clutch member 61 to move along the axial direction without interfering with the rotation of the clutch member 61.

值得一提的是，該傳動組件4包括一傳動軸41、一第一傳動齒輪42及一第二傳動齒輪43，該傳動軸41樞設於該殼體1，該第一傳動齒輪42及該第二傳動齒輪43不可相轉動地套設於該傳動軸41，該第一傳動齒輪42與該第一變速齒輪51相嚙合，該第二傳動齒輪43與該第二變速齒輪52相嚙合。於本實施例中該傳動組件4另包括一第三傳動齒輪44，該第三傳動齒輪44不可相轉動地套設於該傳動軸41並位於該殼體1外，該組接件3可轉動地套設於該心軸2並位於該殼體1外，該第三傳動齒輪44與該驅動齒輪31相嚙合，因此無論該離合件61帶動該第一變速齒輪51或該第二變速齒輪52轉動皆可帶動該傳動軸41轉動，以使該傳動軸41之第三傳動齒輪44帶動該驅動齒輪31轉動，即可使該組接件3帶動該齒盤92轉動。It is worth mentioning that the transmission assembly 4 includes a transmission shaft 41, a first transmission gear 42, and a second transmission gear 43. The transmission shaft 41 is pivoted to the housing 1, the first transmission gear 42 and the The second transmission gear 43 is non-rotatably sleeved on the transmission shaft 41, the first transmission gear 42 is meshed with the first transmission gear 51, and the second transmission gear 43 is meshed with the second transmission gear 52. In this embodiment, the transmission assembly 4 further includes a third transmission gear 44. The third transmission gear 44 is non-rotatably sleeved on the transmission shaft 41 and located outside the housing 1, and the assembly 3 is rotatable The ground is sleeved on the spindle 2 and located outside the housing 1. The third transmission gear 44 meshes with the drive gear 31, so whether the clutch 61 drives the first transmission gear 51 or the second transmission gear 52 Rotation can drive the transmission shaft 41 to rotate, so that the third transmission gear 44 of the transmission shaft 41 drives the drive gear 31 to rotate, so that the assembling member 3 can drive the gear plate 92 to rotate.

綜上，本發明之自行車變速裝置可大幅提高該自行車之變速的段位，且不會使齒盤過厚而導致變速器無法順利跳齒，因此於使用上更方便。In summary, the bicycle speed change device of the present invention can greatly increase the speed of the bicycle, and will not make the gear plate too thick and cause the gearbox to skip gears smoothly, so it is more convenient to use.

1:殼體 2:心軸 3:組接件 4:傳動組件 5:變速組件 6:離合組件 9:自行車 31:驅動齒輪 32:外螺紋部 33:鍵槽 41:傳動軸 42:第一傳動齒輪 43:第二傳動齒輪 44:第三傳動齒輪 51:第一變速齒輪 52:第二變速齒輪 53:第二卡部 531:凹孔 532:導引面 61:離合件 62:螺桿 63:致動件 64:捲片彈簧 611:第一卡部 612:凸部 613:環凸緣 631:套接件 91:曲柄 92:齒盤 93:纜線 1: shell 2: Mandrel 3: Assembled parts 4: Transmission components 5: Variable speed components 6: Clutch components 9: Bicycle 31: drive gear 32: External thread 33: keyway 41: drive shaft 42: The first transmission gear 43: second transmission gear 44: The third transmission gear 51: First gear 52: second gear 53: The second card part 531: Hole 532: Guiding Surface 61: Clutch 62: Screw 63: Actuator 64: coil spring 611: The first card part 612: Convex 613: Ring flange 631: Socket 91: crank 92: Sprocket 93: Cable

圖1為本發明一較佳實施例之裝配示意圖。 圖2為本發明一較佳實施例之立體圖。 圖3為本發明一較佳實施例之分解圖。 圖4為本發明一較佳實施例之側面剖視圖。 圖5至圖7為本發明一較佳實施例之操作示意圖。Fig. 1 is an assembly diagram of a preferred embodiment of the present invention. Figure 2 is a perspective view of a preferred embodiment of the present invention. Figure 3 is an exploded view of a preferred embodiment of the present invention. Figure 4 is a side cross-sectional view of a preferred embodiment of the present invention. 5 to 7 are schematic diagrams of the operation of a preferred embodiment of the present invention.

1:殼體 1: shell

9:自行車 9: Bicycle

91:曲柄 91: crank

92:齒盤 92: Sprocket

93:纜線 93: Cable

Claims (10)

一種自行車變速裝置，包括： 一殼體，供設於一自行車； 一心軸，沿一軸向樞設於該殼體，該心軸沿該軸向之兩端分別供與自行車之一曲柄相組接； 一組接件，供與自行車之一齒盤相組接，該組接件另設有一相連動之一驅動齒輪； 一傳動組件，樞設於該殼體並與該驅動齒輪相嚙合； 一變速組件，包括可相對該殼體轉動之一第一變速齒輪及一第二變速齒輪，該第一變速齒輪與該第二變速齒輪分別與該傳動組件轉動連接； 一離合組件，包括一離合件，該離合件與該心軸連動組接並可沿該軸向移動於一第一位置及一第二位置之間； 其中，當該離合件位於該第一位置時，該離合件與該第一變速齒輪轉動連接，該心軸即可帶動該第一變速齒輪、該傳動組件及該驅動齒輪轉動；當該離合件位於該第二位置時，該離合件與該第二變速齒輪轉動連接，該心軸即可帶動該第二變速齒輪、該傳動組件及該驅動齒輪轉動。A bicycle speed change device, including: A shell for installing on a bicycle; A spindle is pivoted on the housing along an axial direction, and two ends of the spindle along the axial direction are respectively provided for assembling with a crank of the bicycle; A set of connecting parts for assembling with a chainring of the bicycle, and the assembling part is additionally provided with a driving gear which is connected to one another; A transmission assembly pivoted on the housing and meshed with the driving gear; A transmission assembly, including a first transmission gear and a second transmission gear rotatable relative to the housing, the first transmission gear and the second transmission gear are respectively rotatably connected with the transmission assembly; A clutch assembly, including a clutch component, the clutch component is linked to the spindle and can be moved between a first position and a second position along the axial direction; Wherein, when the clutch is in the first position, the clutch is rotatably connected with the first transmission gear, and the spindle can drive the first transmission gear, the transmission assembly and the drive gear to rotate; when the clutch is When in the second position, the clutch is rotatably connected with the second transmission gear, and the spindle can drive the second transmission gear, the transmission assembly and the drive gear to rotate. 如請求項1所述的自行車變速裝置，其中該離合件不可相對轉動地套設於該心軸並可相對該心軸沿該軸向移動於該第一位置與該第二位置之間，該第一變速齒輪及該第二變速齒輪可相對轉動地套設於該心軸且分別位於該離合件之軸向兩側。The bicycle speed change device according to claim 1, wherein the clutch member is sleeved on the spindle in a non-rotatable manner and can move between the first position and the second position in the axial direction relative to the spindle, the The first transmission gear and the second transmission gear are relatively rotatably sleeved on the mandrel and are respectively located on the axial two sides of the clutch. 如請求項1所述的自行車變速裝置，其中該離合件沿該軸向之相對兩側分別設有一第一卡部，該第一變速齒輪及該第二變速齒輪朝向該離合件之一側分別設有一與該第一卡部相卡抵之第二卡部。The bicycle transmission device according to claim 1, wherein the clutch member is provided with a first clamping portion on opposite sides along the axial direction, and the first transmission gear and the second transmission gear respectively face one side of the clutch member There is a second card portion that is engaged with the first card portion. 如請求項3所述的自行車變速裝置，其中各該第一卡部與各該第二卡部其中一者為複數沿該軸向延伸之凸部，另一者為複數徑向凹設之凹孔，該等凸部可選擇性地***該等凹孔，各該凹孔沿周向設有一傾斜之導引面。The bicycle speed change device according to claim 3, wherein one of each of the first clamping portion and each of the second clamping portion is a plurality of convex portions extending along the axial direction, and the other is a plurality of concave concave portions provided in the radial direction The convex parts can be selectively inserted into the concave holes, and each concave hole is provided with an inclined guide surface along the circumferential direction. 如請求項1所述的自行車變速裝置，其中該離合組件另包括一螺桿及一致動件，該螺桿沿該軸向樞設於該殼體，該致動件一端螺接於該螺桿，另一端卡抵於該離合件以帶動該離合件沿該軸向移動。The bicycle speed change device according to claim 1, wherein the clutch assembly further includes a screw and an actuator, the screw is pivoted to the housing along the axial direction, one end of the actuator is screwed to the screw, and the other end The clutch is pressed against the clutch to drive the clutch to move along the axial direction. 如請求項5所述的自行車變速裝置，其中該螺桿之一端套設有一捲片彈簧，該捲片彈簧之一端供連接一纜線，該捲片彈簧常態地將螺桿朝一方向轉動以使該致動件常態地將該離合件朝該第一位置之方向移動。The bicycle speed change device according to claim 5, wherein one end of the screw is sleeved with a coil spring, one end of the coil spring is connected to a cable, and the coil spring normally rotates the screw in one direction to make the The moving part normally moves the clutch part toward the first position. 如請求項5所述的自行車變速裝置，其中該離合件徑向設有二環凸緣，該致動件遠離該螺桿之一端設有一C字型之套接件，該套接件套設於該離合件之外周壁並卡抵於該二環凸緣之間。The bicycle speed change device according to claim 5, wherein the clutch member is provided with a two-ring flange radially, and an end of the actuating member away from the screw is provided with a C-shaped socket, and the socket is sleeved on The outer peripheral wall of the clutch member is clamped between the two ring flanges. 如請求項1所述的自行車變速裝置，其中該傳動組件包括一傳動軸、一第一傳動齒輪及一第二傳動齒輪，該傳動軸樞設於該殼體，該第一傳動齒輪及該第二傳動齒輪不可相轉動地套設於該傳動軸，該第一傳動齒輪與該第一變速齒輪相嚙合，該第二傳動齒輪與該第二變速齒輪相嚙合。The bicycle transmission device according to claim 1, wherein the transmission assembly includes a transmission shaft, a first transmission gear, and a second transmission gear, the transmission shaft is pivoted to the housing, the first transmission gear and the first transmission gear Two transmission gears are non-rotatably sleeved on the transmission shaft, the first transmission gear meshes with the first transmission gear, and the second transmission gear meshes with the second transmission gear. 如請求項8所述的自行車變速裝置，其中該傳動組件另包括一第三傳動齒輪，該第三傳動齒輪不可相轉動地套設於該傳動軸並位於該殼體外，該組接件可轉動地套設於該心軸並位於該殼體外，該第三傳動齒輪與該驅動齒輪相嚙合。The bicycle transmission device according to claim 8, wherein the transmission assembly further includes a third transmission gear, the third transmission gear is non-rotatably sleeved on the transmission shaft and located outside the housing, and the assembly is rotatable The ground is sleeved on the spindle and located outside the housing, and the third transmission gear meshes with the drive gear. 如請求項1至9其中任一項所述的自行車變速裝置，其中該組接件之外周壁設有一外螺紋部及一沿該軸向延伸之鍵槽，該鍵槽供設有鍵體，該齒盤供螺接於該外螺紋部且供卡抵於該鍵體。The bicycle transmission device according to any one of claims 1 to 9, wherein the outer peripheral wall of the assembly member is provided with an external thread portion and a key groove extending along the axial direction, the key groove is provided with a key body, and the tooth The disc is screwed on the external threaded part and clamped against the key body.
TW108127308A 2019-08-01 2019-08-01 Transmission device for bicycle TWI721517B (en)

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CN201910750476.XA CN112298446B (en) 2019-08-01 2019-08-14 Bicycle speed variator

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CN2830254Y (en) * 2005-08-26 2006-10-25 毕忠成 Engine gearbox of speed variable boosting motorcycle
CN101204986A (en) * 2006-12-18 2008-06-25 潘健 Bicycle speed changer
CN101559816A (en) * 2008-04-17 2009-10-21 农豪实业股份有限公司 Bicycle with clutch transmission function system
CN102420494B (en) * 2011-12-27 2013-08-21 南京纳帝机电技术有限公司 Variable speed wheel-disc integrated mid-motor in electrical bicycle
TWI579194B (en) * 2012-05-18 2017-04-21 日馳企業股份有限公司 Drive transmission capable of multi-speed gear-shifting by reverse rotation
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CN206092735U (en) * 2016-09-18 2017-04-12 王则根 Manual two -way clutch of agricultural pump
JP6705740B2 (en) * 2016-12-21 2020-06-03 株式会社シマノ Bicycle transmission and bicycle internal gear hub
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