TWI557019B - Bicycle three speed inner speed change mechanism - Google Patents
Bicycle three speed inner speed change mechanism Download PDFInfo
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- TWI557019B TWI557019B TW103143416A TW103143416A TWI557019B TW I557019 B TWI557019 B TW I557019B TW 103143416 A TW103143416 A TW 103143416A TW 103143416 A TW103143416 A TW 103143416A TW I557019 B TWI557019 B TW I557019B
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Description
本發明涉及一種自行車變速裝置，尤指一種自行車三速內變速機構。 The invention relates to a bicycle shifting device, in particular to a bicycle three-speed internal shifting mechanism.
為了提升騎乘時的踩踏效率，以及適用不同的坡度騎乘狀況，大部分的自行車均裝配有變速裝置，其中根據變速裝置的零件組成以及裝配分式，大致可分為外變速器以及內變速器兩種，外變速器包含一前飛輪、一後飛輪以及兩撥鏈機構，其中該前飛輪以及該後飛輪均為複數片不同齒數的鏈輪疊加而成的裝置，外變速器係利用該兩撥鏈機構控制該前、後飛輪的鏈輪位置，藉以改變前、後輪的轉速與扭矩，達到多段變速的目的，外變速器具有加工製造容易以及價格低廉等優點，但在騎乘過程中較易為環境所汙染，以及切換檔位不順而導致鏈條由飛輪上脫落等缺點； 而內變速器具有體積小而不受限於輪軸空間，換檔穩定而不會在變換檔位時脫軌，以及不受外在環境所影響的優點，因此，內變速器逐漸成為折疊式自行車以及電動自行車等配備的變速器；然而，如TW第584128號「內變速之改良」發明專利案雖揭露一種現有的內變速器，但其動力轉換機構包含眾多零組件，且變速過程較為繁複，因此，現有內變速器誠有加以改良之必要。 In order to improve the pedaling efficiency during riding and to apply different slope riding conditions, most bicycles are equipped with a shifting device, which can be roughly divided into an external transmission and an internal transmission according to the components and assembly parts of the transmission. The outer transmission includes a front flywheel, a rear flywheel and two derailleur mechanisms, wherein the front flywheel and the rear flywheel are devices in which a plurality of sprocket wheels of different numbers of teeth are superposed, and the outer transmission system utilizes the two derailleur mechanisms The position of the sprocket of the front and rear flywheels is controlled to change the rotational speed and torque of the front and rear wheels to achieve the purpose of multi-speed shifting. The outer transmission has the advantages of easy manufacturing and low price, but is easier to be in the riding process. Contamination, and the disadvantage that the switching gear is not smooth and the chain is detached from the flywheel; The internal transmission has a small size and is not limited by the axle space, the shift is stable without derailing when shifting gears, and is not affected by the external environment. Therefore, the internal transmission gradually becomes a folding bicycle and an electric bicycle. The transmission is equipped; however, the invention patent of TW No. 584128 "Improvement of Internal Transmission" discloses a conventional internal transmission, but the power conversion mechanism includes a large number of components, and the shifting process is complicated, so the existing internal transmission There is a need to improve it.
為了解決現有內變速器有關於零件眾多且變速過程繁複的缺失，本發明的主要目的在於提供一種自行車三速內變速機構，本發明主要係以軸向平移調速套筒來達到嚙合或解除兩行星臂與環齒輪，達到變換檔位的目的， 進一步調整調速套筒上的調速凸緣以及調速棘輪面位置，可獲得兩組內變速器的設計構想。 In order to solve the problem that the existing internal transmission has many parts and the shifting process is complicated, the main object of the present invention is to provide a three-speed internal shifting mechanism for a bicycle. The present invention mainly uses an axial translational speed-regulating sleeve to achieve engagement or release of two planets. Arm and ring gear, to achieve the purpose of changing gears, Further adjustment of the speed control flange on the speed control sleeve and the position of the speed adjustment ratchet surface can obtain the design concept of the two internal transmissions.
本發明解決先前技術問題所提出的自行車三速內變速機構，係包括：一輪轂單元，該輪轂單元包括一輪轂、一主軸以及一調速機構，該輪轂為一水平設置的筒體，該輪轂包括一輸入側以及一輸出側，該輪轂在接近該輸入側處徑向環凹形成一輪轂內齒面，該輪轂內齒面為一棘輪面，該輪轂於靠近該輸出側的位置徑向環凹形成一輪轂棘輪面，該主軸為一水平設置的桿體且包括一太陽齒面，該太陽齒面環凸於該主軸靠近該輸出側的壁面，該調速機構以可相對該主軸軸向滑動的形式套設於該主軸上且包括一調速套筒，該調速套筒套設於該主軸且包括一調速凸緣、一調速室以及一調速棘輪面，該調速凸緣由該調速套筒外環側面徑向朝外環凸形成，該調速室為一開口朝向該輸出側且形成於靠近該輸出側的調速套筒內的容置空間，該調速棘輪面由該調速室內環側面徑向環凹形成；一傳動變速單元，該傳動變速單元結合於該輪轂單元的輸入側，該傳動變速單元包括一鏈盤套筒機構以及一鏈盤，該鏈盤套筒機構套設於該主軸接近該輸入側的一側，該鏈盤套筒機構為包括一套筒本體以及一第一離合器，該套筒本體為一筒體且其一側套設於該調速套筒接近該輸入側的外部，該套筒本體的另一側由位於該輪轂的輸入側伸出，該第一離合器設置於該套筒本體靠近該輸出側的外周；一第二變速單元，該第二變速單元套設於該輪轂單元的主軸且位於該輪轂內部，該第二變速單元連接於該傳動變速單元，該第二變速單元包括一第一行星臂以及一第二離合器，該第一行星臂為一筒體且套設並固接於該主軸，使得 該第一行星臂與該主軸同步轉動，且該第一行星臂設置於該調速套筒的調速室內，該第二離合器設置於該第一行星臂上靠近該調速機構的外周；一第三變速單元，該第三變速單元套設於該輪轂單元的主軸，且連接於該第一變速單元以及該輪轂單元的輪轂，該第三變速單元包括一第二行星臂、至少一行星齒輪以及一第三離合器，該第二行星臂為一筒體且套設並固接於該主軸，使得該第二行星臂與該主軸同步轉動，該第二行星臂位於該第一行星臂以及該輸出側之間，該至少一行星齒輪分別樞設於該第一行星臂與該第二行星臂之間，且該至少一行星齒輪與該主軸的太陽齒面相互嚙合，使得該至少一行星齒輪與該主軸的太陽齒面可相互帶動，該第三離合器設置於該第二行星臂上靠近該輸出側的外周，該第三離合器卡制於該輪轂的輪轂棘輪面；以及一第四變速單元，該第四變速單元設置於該輪轂單元的輪轂內部，且與該調速套筒、該傳動變速單元以及該第三變速單元相連結，該第四變速單元包括一環齒輪以及一第四離合器，該環齒輪包覆在該套筒本體接近該調速機構的一側、該調速套筒以及該至少一行星齒輪的外部，且該環齒輪位於該輪轂內部，該環齒輪包括一單向棘輪面、複數個置齒孔以及一同步內齒面，該單向棘輪面環凹設於該環齒輪靠近該輸入側的內側壁，使得該鏈盤套筒機構的第一離合器卡制於該單向棘輪面，該複數個置齒孔對應設置於該輪轂的輪轂內齒面徑向內側，各置齒孔分別為徑向貫穿該環齒輪且間隔設置的長形孔，該同步內齒面環凹設於該環齒輪靠近該輸出側的內側壁，使得該同步內齒面與該第三變速單元的至少一行星齒輪相互嚙合，該第四離合器設置於該環齒輪的各置齒孔，使得該第四離合器與該輪轂的輪轂內齒面形成一空隙。 The present invention solves the prior art problem of the bicycle three-speed internal shifting mechanism, comprising: a hub unit, the hub unit includes a hub, a main shaft and a speed governing mechanism, the hub is a horizontally disposed cylinder, the hub An input side and an output side are disposed, and the hub is radially annularly formed to form an inner tooth surface of the hub near the input side, the internal tooth surface of the hub is a ratchet surface, and the radial ring of the hub near the output side The concave surface forms a hub ratchet surface, the main shaft is a horizontally disposed rod body and includes a sun tooth surface, the sun tooth surface ring is convex on the wall surface of the main shaft near the output side, and the speed regulating mechanism is axially opposite to the main shaft The sliding form is sleeved on the main shaft and includes a speed control sleeve. The speed control sleeve is sleeved on the main shaft and includes a speed control flange, a speed control chamber and a speed control ratchet surface. The timing of the outer ring of the speed regulating sleeve is formed by a radially outward ring, and the speed regulating chamber is an opening space facing the output side and formed in the speed control sleeve near the output side, the speed adjusting ratchet The inner side of the speed control a radial ring is formed; a transmission shifting unit is coupled to the input side of the hub unit, the transmission shifting unit includes a chain sleeve mechanism and a chain plate, and the chain sleeve mechanism is sleeved thereon The spindle sleeve is disposed on a side of the input side, and the sprocket sleeve mechanism comprises a sleeve body and a first clutch, the sleeve body is a cylinder and one side of the sleeve sleeve is sleeved near the input shaft. The other side of the sleeve body is extended from the input side of the hub, the first clutch is disposed on the outer circumference of the sleeve body near the output side; a second shifting unit, the second shifting unit The second shifting unit is connected to the main shaft of the hub unit, and the second shifting unit is coupled to the transmission shifting unit. The second shifting unit includes a first planetary arm and a second clutch. The first planetary arm is a first planetary arm. The cylinder is sleeved and fixed to the main shaft, so that The first planetary arm rotates synchronously with the main shaft, and the first planetary arm is disposed in a speed regulating chamber of the speed control sleeve, and the second clutch is disposed on the first planetary arm near an outer circumference of the speed regulating mechanism; a third shifting unit, the third shifting unit is sleeved on the main shaft of the hub unit, and is coupled to the first shifting unit and the hub of the hub unit, the third shifting unit includes a second planetary arm and at least one planetary gear And a third clutch, the second planetary arm is a cylinder and sleeved and fixed to the main shaft, so that the second planetary arm rotates synchronously with the main shaft, the second planetary arm is located at the first planetary arm and the Between the output sides, the at least one planetary gear is respectively disposed between the first planetary arm and the second planetary arm, and the at least one planetary gear meshes with the sun tooth surface of the main shaft, so that the at least one planetary gear The sun gear surface of the main shaft is mutually movable, the third clutch is disposed on the outer circumference of the second planetary arm near the output side, the third clutch is engaged with the hub ratchet surface of the hub; and a fourth change a fourth shifting unit disposed inside the hub of the hub unit and coupled to the governor sleeve, the transmission shifting unit and the third shifting unit, the fourth shifting unit including a ring gear and a fourth clutch The ring gear is wrapped on a side of the sleeve body that is close to the speed governing mechanism, the speed control sleeve and the outer portion of the at least one planetary gear, and the ring gear is located inside the hub, the ring gear includes a one-way a ratchet surface, a plurality of perforations, and a synchronizing internal tooth surface, the one-way ratchet ring is recessed on the inner side wall of the ring gear adjacent to the input side, such that the first clutch of the sprocket sleeve mechanism is engaged in the a unidirectional ratchet surface, the plurality of perforations are correspondingly disposed radially inward of the inner tooth surface of the hub of the hub, and each of the perforations is an elongated hole radially extending through the ring gear and spaced apart, the synchronous internal tooth surface The annular recess is disposed on the inner side wall of the ring gear adjacent to the output side, such that the synchronous inner tooth surface and the at least one planetary gear of the third shifting unit are in mesh with each other, and the fourth clutch is disposed on each of the perforations of the ring gear. Make The fourth clutch forms a gap with the inner surface of the hub of the gear hub.
前述的自行車三速內變速機構，其中該主軸包括一致動槽，該致動槽環凹於該主軸接近該輸入側的壁面，該調速機構包括一壓縮彈簧，該壓縮彈簧穿設於該主軸並設置於該置動槽內且其一端抵靠於該調速套筒。 The bicycle three-speed internal shifting mechanism, wherein the main shaft includes an actuating groove, the actuating groove ring is concave on a wall surface of the main shaft close to the input side, and the speed regulating mechanism comprises a compression spring, the compression spring is disposed on the main shaft And disposed in the movement groove and one end thereof abuts against the speed control sleeve.
前述的自行車三速內變速機構，其中該第四離合器包括複數個插銷以及複數個第四棘爪，各插銷軸向設置於各置齒孔中，且各插銷軸向穿設各第四棘爪，各棘爪透該各插銷樞設於各置齒孔中。 The bicycle three-speed internal shifting mechanism, wherein the fourth clutch includes a plurality of latches and a plurality of fourth pawls, each of the latches is axially disposed in each of the perforations, and each of the latches is axially disposed through each of the fourth detents Each of the pawls is pivotally disposed in each of the perforations.
前述的自行車三速內變速機構，其中該調速凸緣由該調速套筒外環側面的中段處徑向朝外環凸形成，使得該調速凸緣完全抵靠於該至少一棘爪，該調速棘輪面由靠近該輸出側的調速室內環側面徑向間隔環凹形成，且該至少一置齒孔對應設置於該調速套筒的調速凸緣的徑向外側，使得該第二離合器、該調速凸緣、該第四離合器以及該輪轂內齒面為直線相對。 The bicycle three-speed internal shifting mechanism, wherein the speed regulating flange is formed by a radially outward ring at a middle portion of the side surface of the outer ring of the speed control sleeve, such that the speed regulating flange completely abuts against the at least one pawl. The speed adjusting ratchet surface is formed by a radially spaced annular groove on a side of the speed regulating indoor ring adjacent to the output side, and the at least one positioning hole is correspondingly disposed on a radially outer side of the speed regulating flange of the speed regulating sleeve, so that the The second clutch, the speed control flange, the fourth clutch, and the inner tooth surface of the hub are linearly opposed.
前述的自行車三速內變速機構，其中該調速凸緣朝該輸出側方向偏移，使得該調速凸緣與各第四棘爪徑向偏移，該調速棘輪面由靠近該輸出側的側面延伸至與該調速凸緣徑向切齊，且該第二棘爪與該調速凸緣同步偏移。 The bicycle three-speed internal shifting mechanism, wherein the speed regulating flange is offset toward the output side such that the speed regulating flange is radially offset from each of the fourth pawls, and the speed adjusting ratchet surface is close to the output side The side extends to be radially aligned with the timing flange and the second pawl is offset in synchronization with the timing flange.
前述的自行車三速內變速機構，其中該第一、第二以及第三離合器均為單向棘爪式離合器。 The bicycle three-speed internal shifting mechanism described above, wherein the first, second, and third clutches are all one-way pawl clutches.
前述的自行車三速內變速機構，其中該主軸包括一控制槽、一穿設孔、一控制桿以及一連結桿，該控制槽徑向貫穿該主軸於該致動槽上並朝該太陽齒面延伸，該穿設孔由該主軸接近該輸入側的側面軸向貫穿該主軸的一端且與該控制槽相通，該控制桿橫向穿設於該控制槽，使得該控制桿可在該控制槽中軸向移動，且該控制桿的兩端伸出該控制槽，該連結桿穿設該穿設孔中且設有兩端，該連結桿的其中一端固接於該控制桿，另一端經由該穿設孔而伸出該主軸，且該調速套筒靠近該輸入側的一側固接於該控制桿的兩端，使得該調速套筒隨著該控制桿的移動而移動。 The bicycle three-speed internal shifting mechanism, wherein the main shaft includes a control slot, a through hole, a control rod and a connecting rod, the control slot radially extending through the main shaft on the actuating slot and facing the sun tooth surface Extendingly, the through hole is axially penetrated from one end of the main shaft and penetrates from one end of the main shaft and communicates with the control slot. The control rod is transversely disposed in the control slot, so that the control rod can be in the control slot. Moving axially, and both ends of the control rod extend out of the control slot, the connecting rod passes through the through hole and is provided with two ends, one end of the connecting rod is fixed to the control rod, and the other end is connected thereto The main shaft is extended through the hole, and one side of the speed control sleeve close to the input side is fixed to both ends of the control rod, so that the speed control sleeve moves with the movement of the control rod.
本發明的技術手段可獲得的功效包括： The efficiencies that can be obtained by the technical means of the present invention include:
1.本發明以主軸、太陽齒輪、兩行星齒輪、環齒輪以及兩行星臂的行星齒輪系為基礎，透過複數個離合器的安排，並搭配可軸向移動的調速套筒為主體，最多可提供三個檔位，簡化了調速機構方面的設計，達到操控容易以及作動確實的效果。 1. The invention is based on a main shaft, a sun gear, two planetary gears, a ring gear and a planetary gear system of two planetary arms, and is arranged through a plurality of clutches, and is equipped with an axially movable speed regulating sleeve as a main body. Three gear positions are provided, which simplifies the design of the speed control mechanism, and achieves the effect of easy handling and actuation.
2.本發明進一步調整調速套筒中調速凸緣以及調速棘輪面位置，經過檔位安排，使得在調速套筒在第二檔位時有兩種不同的動力傳動方向，可獲得兩組新式的三速內變速器。 2. The invention further adjusts the speed control flange of the speed control sleeve and the position of the speed adjustment ratchet surface, and the gear position arrangement enables two different power transmission directions when the speed control sleeve is in the second gear position. Two new three-speed internal transmissions.
10‧‧‧輪轂單元 10‧‧‧Wheel unit
11‧‧‧輪轂 11‧‧·wheels
111‧‧‧輸入側 111‧‧‧ Input side
112‧‧‧輸出側 112‧‧‧Output side
113‧‧‧輪轂內齒面 113‧‧·Inner hub
114‧‧‧容置槽 114‧‧‧ accommodating slots
115‧‧‧輪轂棘輪面 115‧‧·wheel hub ratchet
12‧‧‧防塵蓋 12‧‧‧Dust cover
121‧‧‧通孔 121‧‧‧through hole
13‧‧‧滾珠軸承座 13‧‧‧Ball bearing housing
14‧‧‧滾珠軸承 14‧‧‧ Ball Bearings
15‧‧‧主軸 15‧‧‧ Spindle
151‧‧‧致動槽 151‧‧‧ actuation slot
152‧‧‧太陽齒面 152‧‧‧Sun Tooth
153‧‧‧控制槽 153‧‧‧Control slot
154‧‧‧穿設孔 154‧‧‧through holes
155‧‧‧控制桿 155‧‧‧Control lever
156‧‧‧連結桿 156‧‧‧ Connecting rod
16、16A‧‧‧調速機構 16, 16A‧‧ ‧ speed governing mechanism
161、161A‧‧‧調速套筒 161, 161A‧‧ ‧ speed control sleeve
162‧‧‧壓縮彈簧 162‧‧‧Compressed spring
163、163A‧‧‧調速凸緣 163, 163A‧‧‧ speed control flange
164、164A‧‧‧調速室 164, 164A‧ ‧ speed control room
165、165A‧‧‧調速棘輪面 165, 165A‧‧‧Speed ratchet
20‧‧‧傳動變速單元 20‧‧‧Transmission gear unit
21‧‧‧鏈盤套筒機構 21‧‧‧Chassis sleeve mechanism
211‧‧‧套筒本體 211‧‧‧Sleeve body
212‧‧‧第一棘爪 212‧‧‧First pawl
213‧‧‧內滾珠軸承 213‧‧‧Inner ball bearings
22‧‧‧外滾珠軸承 22‧‧‧Outer ball bearings
23‧‧‧鏈盤 23‧‧‧Chassis
30、30A‧‧‧第二變速單元 30, 30A‧‧‧second shifting unit
31、31A‧‧‧第一行星臂 31, 31A‧‧‧ first planetary arm
32、32A‧‧‧第二棘爪 32, 32A‧‧‧second pawl
40‧‧‧第三變速單元 40‧‧‧3rd shifting unit
41‧‧‧第二行星臂 41‧‧‧second planetary arm
42‧‧‧行星齒輪 42‧‧‧ planetary gear
43‧‧‧第三棘爪 43‧‧‧ Third pawl
50‧‧‧第四變速單元 50‧‧‧4th shifting unit
51‧‧‧環齒輪 51‧‧‧ring gear
511‧‧‧單向棘輪面 511‧‧‧One-way ratchet
512‧‧‧置齒孔 512‧‧‧Aperture
513‧‧‧同步內齒面 513‧‧‧Synchronous internal tooth surface
52‧‧‧第四離合器 52‧‧‧fourth clutch
521‧‧‧插銷 521‧‧‧ latch
522‧‧‧第四棘爪 522‧‧‧fourth pawl
圖1是本發明第一較佳實施例的外觀立體圖。 BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view showing the appearance of a first preferred embodiment of the present invention.
圖2是本發明第一較佳實施例的外觀立體分解圖。 Figure 2 is an exploded perspective view showing the appearance of the first preferred embodiment of the present invention.
圖3是本發明第一較佳實施例的局部外觀立體分解圖。 Figure 3 is an exploded perspective view showing a partial appearance of a first preferred embodiment of the present invention.
圖4是本發明第一較佳實施例的剖面側視圖。 Figure 4 is a cross-sectional side view showing a first preferred embodiment of the present invention.
圖5是本發明第一較佳實施例中沿圖4的5-5割面線的剖面側視圖。 Figure 5 is a cross-sectional side view taken along line 5-5 of Figure 4 of the first preferred embodiment of the present invention.
圖6是本發明第一較佳實施例中沿圖4的6-6割面線的剖面側視圖。 Figure 6 is a cross-sectional side view taken along line 6-6 of Figure 4 of the first preferred embodiment of the present invention.
圖7是本發明第一較佳實施例的第一檔的動力傳送方向示意圖。 Figure 7 is a schematic view showing the power transmission direction of the first gear of the first preferred embodiment of the present invention.
圖8是本發明第一較佳實施例的第二檔的動力傳送方向示意圖。 Figure 8 is a schematic view showing the power transmission direction of the second gear of the first preferred embodiment of the present invention.
圖9是本發明第一較佳實施例中沿圖8的9-9割面線的剖面側視圖。 Figure 9 is a cross-sectional side view taken along line 9-9 of Figure 8 of the first preferred embodiment of the present invention.
圖10是本發明第一較佳實施例的第三檔動力傳送方向示意圖。 Figure 10 is a schematic view showing the third gear power transmission direction of the first preferred embodiment of the present invention.
圖11是本發明第一較佳實施例中沿圖10的11-11割面線的剖面側視圖。 Figure 11 is a cross-sectional side view taken along the line 11-11 of Figure 10 in the first preferred embodiment of the present invention.
圖12是本發明第一較佳實施例中沿圖11的12-12割面線的剖面側視圖。 Figure 12 is a cross-sectional side view taken along line 12-12 of Figure 11 in a first preferred embodiment of the present invention.
圖13是本發明第二較佳實施例的第一檔的動力傳送方向示意圖。 Figure 13 is a schematic view showing the power transmission direction of the first gear of the second preferred embodiment of the present invention.
圖14是本發明第二較佳實施例的第二檔的動力傳送方向示意圖。 Figure 14 is a schematic view showing the power transmission direction of the second gear of the second preferred embodiment of the present invention.
圖15是本發明第二較佳實施例的第三檔的動力傳送方向示意圖。 Figure 15 is a schematic view showing the power transmission direction of the third gear of the second preferred embodiment of the present invention.
為能詳細瞭解本發明的技術特徵及實用功效，並可依照發明內容來實現，玆進一步以如圖式所示的較佳實施例，詳細說明如后： In order to understand the technical features and practical effects of the present invention in detail, and in accordance with the present invention, further details are shown in the following preferred embodiments.
本發明所提供的自行車三速內變速機構的第一較佳實施例，係如圖1至圖3所示，該自行車三速內變速機構包括一輪轂單元10、一傳動變速單元20、一第二變速單元30、一第三變速單元40以及一第四變速單元50，其中：該輪轂單元10包括一輪轂11、兩防塵蓋12、一滾珠軸承座13、一滾珠軸承14、一主軸15以及一調速機構16，該輪轂11為一水平設置的圓筒，該輪轂11包括一輸入側111以及一輸出側112，該輪轂11在接近該輸入側111處徑向間隔環凹形成一輪轂內齒面113，該輪轂內齒面113為一棘輪面，該輪轂11在該輸出側112的內環側壁徑向環凹形成一容置槽114，該輪轂11於靠近該容置槽114的位置徑向環凹形成一輪轂棘輪面115，該兩防塵蓋12分別蓋設於該輪轂11的輸入側111及輸出側112，且該兩防塵蓋12均具有一軸向貫穿設置的通孔121；該滾珠軸承座13貼靠於靠近該輸出側112的防塵蓋12內側面，該滾珠軸承14貼靠該滾珠軸承座13並容置於該容置槽114內，該主軸15沿著該輪轂11的軸心穿設並固定於該兩防塵蓋12、該滾珠軸承座13以及該滾珠軸承14，使得該輪轂11轉動時，該兩防塵蓋12、該滾珠軸承座13以及該滾珠軸承14可相對該主軸15的軸心轉動，該主軸15為一水平設置的桿體且包括一致動槽151、一太陽齒面152、一控制槽153、一穿設孔154、一控制桿155以及一連結桿156，該致動槽151環凹於該主軸15遠離該滾珠軸承座13的壁面且呈長條狀，該太陽齒面152環凸於該主軸15靠近該滾珠軸承座13的壁面，該控制槽153徑向貫穿該主軸15於該致動槽151上並朝該太陽齒面152延伸，該穿設孔154由該主軸15接近該輸入側111的側面軸向貫穿該主軸15的一端且與該控制槽153相通，該控 制桿155橫向穿設於該控制槽153，使得該控制桿155可在該控制槽153中軸向移動，且該控制桿155的兩端伸出該控制槽153，該連結桿156穿設該穿設孔154中且設有兩端，該連結桿156的其中一端固接於該控制桿155，另一端經由該穿設孔154而伸出該主軸15。 The first preferred embodiment of the bicycle three-speed internal shifting mechanism provided by the present invention is as shown in FIG. 1 to FIG. 3. The bicycle three-speed internal shifting mechanism includes a hub unit 10, a transmission shifting unit 20, and a first a second shifting unit 30, a third shifting unit 40 and a fourth shifting unit 50, wherein the hub unit 10 includes a hub 11, two dustproof covers 12, a ball bearing seat 13, a ball bearing 14, a main shaft 15, and A speed governing mechanism 16 is a horizontally disposed cylinder. The hub 11 includes an input side 111 and an output side 112. The hub 11 is radially spaced around the input side 111 to form a hub. The flank 113 of the hub is a ratchet surface. The hub 11 is radially annularly recessed on the side wall of the inner side of the output side 112 to form a receiving groove 114. The hub 11 is adjacent to the receiving groove 114. The radial ring recesses form a hub ratchet surface 115, the two dust caps 12 are respectively disposed on the input side 111 and the output side 112 of the hub 11, and the two dust caps 12 each have an axial through hole 121; The ball bearing seat 13 abuts against the output side 112 The inner side of the cover 12 is abutted against the ball bearing seat 13 and received in the receiving groove 114. The main shaft 15 is disposed along the axis of the hub 11 and fixed to the two dustproof covers 12, The ball bearing block 13 and the ball bearing 14 are configured such that when the hub 11 rotates, the two dustproof cover 12, the ball bearing seat 13 and the ball bearing 14 are rotatable relative to the axis of the main shaft 15, and the main shaft 15 is a horizontal setting The rod body includes an actuating groove 151, a sun tooth surface 152, a control groove 153, a through hole 154, a control rod 155 and a connecting rod 156. The actuating groove 151 is concavely concave from the main shaft 15 away from the main shaft 15 The wall surface of the ball bearing block 13 is elongated, and the sun tooth surface 152 is annularly convex on the wall surface of the main shaft 15 near the ball bearing seat 13. The control groove 153 extends through the main shaft 15 on the actuating groove 151. Extending toward the sun tooth surface 152, the through hole 154 is axially penetrated from the side of the input side 111 by the main shaft 15 and penetrates the end of the main shaft 15 and communicates with the control slot 153. The lever 155 is transversely disposed in the control slot 153, such that the lever 155 can move axially in the control slot 153, and both ends of the lever 155 extend out of the control slot 153, and the connecting rod 156 passes through the slot 156. One end of the through hole 154 is provided, and one end of the connecting rod 156 is fixed to the control rod 155, and the other end protrudes from the main shaft 15 via the through hole 154.
請配合參看如圖2至圖4所示，該調速機構16以可相對該主軸15軸向滑動的形式套設於該主軸15上靠近該輸入側111，且包括一調速套筒161以及一壓縮彈簧162，該調速套筒161套設於該主軸15上且介於該致動槽151以及太陽齒面152之間，該調速套筒161為一階級狀圓筒體且其半徑較小的部分靠近該輸入側111，該調速套筒161靠近該輸入側111的一側固接於該控制桿155的兩端，使得該調速套筒161隨著該控制桿155的移動而移動，該調速套筒161包括一調速凸緣163、一調速室164以及一調速棘輪面165，該調速凸緣163由該調速套筒161外環側面的中段處徑向朝外環凸形成，該調速室164為一開口朝向該輸出側112且形成於靠近該輸出側112的調速套筒161內的容置空間，該調速棘輪面165由靠近該輸出側112的調速室164內環側面徑向環凹形成，該壓縮彈簧162套設於該主軸15上且位於該制動槽151內，該壓縮彈簧162的一端抵靠於該調速套筒161靠近該輸入側111的側面。 As shown in FIG. 2 to FIG. 4 , the speed regulating mechanism 16 is sleeved on the main shaft 15 close to the input side 111 in a form of axial sliding relative to the main shaft 15 , and includes a speed control sleeve 161 and a compression spring 162 is disposed on the main shaft 15 and interposed between the actuating groove 151 and the sun tooth surface 152. The speed control sleeve 161 is a class cylindrical body and has a radius thereof. The smaller portion is adjacent to the input side 111, and one side of the speed control sleeve 161 adjacent to the input side 111 is fixed to both ends of the control rod 155, so that the speed control sleeve 161 moves with the control rod 155. Moving, the speed control sleeve 161 includes a speed control flange 163, a speed control chamber 164, and a speed control ratchet surface 165. The speed control flange 163 is defined by the middle section of the outer ring side of the speed control sleeve 161. The speed control chamber 164 is formed by an opening toward the output side 112 and formed in the accommodating sleeve 161 adjacent to the output side 112. The speed regulating ratchet surface 165 is close to the output. The inner side of the ring-shaped adjusting chamber 164 of the side 112 is radially annularly formed. The compression spring 162 is sleeved on the main shaft 15 and located in the braking groove 151. One end of the compression spring 162 abuts against the governor sleeve 161 adjacent the input side surface 111.
該傳動變速單元20係為一鏈輪裝置並結合於該輪轂單元10的輸入側111，該傳動變速單元20包括一鏈盤套筒機構21、一外滾珠軸承22以及一鏈盤23，該鏈盤套筒機構21套設於該主軸15接近該輸入側111的一側且與位於該輸入側111的防塵蓋12相互結合，該鏈盤套筒機構21為包括一套筒本體211、一第一離合器以及一內滾珠軸承213，該套筒本體211為一圓形筒體且其一側套設於該調速套筒161接近該輸入側111的外部，且該套筒本體211包圍在該主軸15的外部，該套筒本體211的另一側由位於該輸入側111的防塵蓋12的通孔121 伸出，而該套筒本體211的中段處卡設於位於該輸入側111的防塵蓋12的通孔121內緣。 The transmission shifting unit 20 is a sprocket device coupled to the input side 111 of the hub unit 10, the transmission shifting unit 20 includes a sprocket sleeve mechanism 21, an outer ball bearing 22, and a chain plate 23, the chain The disk sleeve mechanism 21 is sleeved on a side of the spindle 15 that is close to the input side 111 and is coupled to the dust cover 12 on the input side 111. The sprocket sleeve mechanism 21 includes a sleeve body 211 and a first a clutch and an inner ball bearing 213. The sleeve body 211 is a circular cylinder and one side of the sleeve body 161 is disposed outside the input side 111, and the sleeve body 211 is surrounded by the sleeve body 211. On the outside of the main shaft 15, the other side of the sleeve body 211 is formed by a through hole 121 of the dustproof cover 12 on the input side 111. The middle portion of the sleeve body 211 is protruded from the inner edge of the through hole 121 of the dust cover 12 on the input side 111.
該第一離合器設置於該套筒本體211靠近該調速機構16的外周，該第一離合器為一單向棘爪式離合器，該第一離合器包括複數個第一棘爪212以及一第一束環，該內滾珠軸承213卡設於該主軸15以及該套筒本體211之間，使得該壓縮彈簧162的另一側抵靠於該內滾珠軸承213的內側面，該外滾珠軸承22卡設於該輪轂11的輸入側111與該套筒本體211的中段處之間，且該外滾珠軸承22位於靠近該輸入側111的防塵蓋12內部，該鏈盤23套設且固接於該套筒本體211伸出該防塵蓋12的部分，該鏈盤23係可連接一鏈條傳動裝置(圖未示)，藉由人力或機械力可經由該鏈盤23而帶動該套筒本體211旋轉，並使得動力傳遞至其他部份。 The first clutch is disposed on the outer circumference of the sleeve body 211 near the speed regulating mechanism 16, the first clutch is a one-way pawl clutch, and the first clutch includes a plurality of first pawls 212 and a first bundle The inner ball bearing 213 is disposed between the main shaft 15 and the sleeve body 211 such that the other side of the compression spring 162 abuts against the inner side surface of the inner ball bearing 213, and the outer ball bearing 22 is engaged. Between the input side 111 of the hub 11 and the middle portion of the sleeve body 211, and the outer ball bearing 22 is located inside the dust cover 12 adjacent to the input side 111, the chain plate 23 is sleeved and fixed to the sleeve The barrel body 211 extends from a portion of the dust cover 12, and the chain plate 23 is connected to a chain transmission device (not shown). The sleeve body 211 can be rotated by the human or mechanical force. And the power is transmitted to other parts.
請配合參看如圖3及4所示，該第二變速單元30套設於該輪轂單元10的主軸15且位於該輪轂11內部，該第二變速單元30連接於該傳動變速單元20，該第二變速單元30包括一第一行星臂31以及一第二離合器，該第一行星臂31為一圓形筒體且套設並固接於該主軸15，使得該第一行星臂31與該主軸15同步轉動，且該第一行星臂31設置於該調速套筒161的調速室164內，該第二離合器設置於該第一行星臂上31靠近該調速機構16的外周，該第二離合器一為單向棘爪式離合器，該第二離合器包括複數個第二棘爪32以及一第二束環。 As shown in FIG. 3 and FIG. 4 , the second shifting unit 30 is sleeved on the main shaft 15 of the hub unit 10 and located inside the hub 11 , and the second shifting unit 30 is connected to the transmission shifting unit 20 . The second shifting unit 30 includes a first planetary arm 31 and a second clutch. The first planetary arm 31 is a circular cylinder and is sleeved and fixed to the main shaft 15 such that the first planetary arm 31 and the main shaft 15 is rotated synchronously, and the first planetary arm 31 is disposed in the speed regulating chamber 164 of the speed control sleeve 161, and the second clutch is disposed on the first planetary arm 31 near the outer circumference of the speed regulating mechanism 16, the first The second clutch is a one-way pawl clutch, and the second clutch includes a plurality of second pawls 32 and a second collar.
該第三變速單元40套設於該輪轂單元10的主軸15，且連接於該第二變速單元30以及該輪轂單元10的輪轂11，該第三變速單元40包括一第二行星臂41、至少一行星齒輪42以及一第三離合器，該第二行星臂41為一圓形筒體且套設並固接於該主軸15，使得該第二行星臂41與該主軸15同步轉動，該第二行星41臂位於該第一行星臂31以及該滾珠軸承14之間，該至少一行星齒輪42分別樞設於該第一行星臂31與該第二行星臂41之間，且該至少一行星齒輪42與該 主軸15的太陽齒面152相互嚙合，使得該至少一行星齒輪42與該主軸15的太陽齒面152可相互帶動，該第三離合器設置於該第二行星臂41上靠近該輸出側112的外周，該第三離合器卡扣於該輪轂11的輪轂棘輪面115，該第三離合器為一為單向棘爪式離合器，該第三離合器包括複數個第三棘爪43以及一第三束環。 The third shifting unit 40 is sleeved on the main shaft 15 of the hub unit 10 and is coupled to the second shifting unit 30 and the hub 11 of the hub unit 10, the third shifting unit 40 includes a second planetary arm 41, at least a planetary gear 42 and a third clutch, the second planetary arm 41 is a circular cylinder and sleeved and fixed to the main shaft 15, so that the second planetary arm 41 rotates synchronously with the main shaft 15, the second The planet 41 is located between the first planetary arm 31 and the ball bearing 14. The at least one planetary gear 42 is respectively disposed between the first planetary arm 31 and the second planetary arm 41, and the at least one planetary gear 42 and the The sun tooth faces 152 of the main shaft 15 are engaged with each other such that the at least one planetary gear 42 and the sun tooth surface 152 of the main shaft 15 are mutually coupled, and the third clutch is disposed on the outer periphery of the second planetary arm 41 near the output side 112. The third clutch is engaged with the hub ratchet surface 115 of the hub 11. The third clutch is a one-way pawl clutch, and the third clutch includes a plurality of third pawls 43 and a third bundle ring.
該第四變速單元50設置於該輪轂單元10的輪轂內部11，且與該調速套筒161、該傳動變速單元20以及該第三變速單元40相連結，該第四變速單元50包括一環齒輪51以及一第四離合器52，該環齒輪51包覆在該套筒本體211接近該調速機構16的一側、該調速套筒161以及該至少一行星齒輪42的外部，且該環齒輪51位於該輪轂11內部，該環齒輪51包括一單向棘輪面511、複數個置齒孔512以及一同步內齒面513，請參看圖4與圖5，該單向棘輪面511環凹設於該環齒輪51靠近該輸入側111的內側壁，使得該鏈盤套筒機構21的第一棘爪212嚙合於該單向棘輪面511，該複數個置齒孔512對應設置於該輪轂11的輪轂內齒面113徑向內側，且該複數個置齒孔512對應設置於該調速套筒161的調速凸緣163的徑向外側，該複數個置齒孔512分別為徑向貫穿該環齒輪51且間隔設置的長形孔，該同步內齒面513環凹設於該環齒輪51靠近該輸出側112的內側壁，且該同步內齒面513與該第三變速單元40的複數個行星齒輪42相互嚙合。 The fourth shifting unit 50 is disposed in the hub interior 11 of the hub unit 10, and is coupled to the governor sleeve 161, the transmission shifting unit 20, and the third shifting unit 40. The fourth shifting unit 50 includes a ring gear. And a fourth clutch 52, the ring gear 51 is wrapped around a side of the sleeve body 211 that is close to the speed regulating mechanism 16, the speed control sleeve 161 and the at least one planetary gear 42, and the ring gear 51 is located inside the hub 11, the ring gear 51 includes a one-way ratchet surface 511, a plurality of perforations 512 and a synchronous internal tooth surface 513. Referring to Figures 4 and 5, the one-way ratchet surface 511 is recessed. The ring gear 51 is adjacent to the inner side wall of the input side 111, so that the first pawl 212 of the sprocket sleeve mechanism 21 is engaged with the one-way ratchet surface 511, and the plurality of pinholes 512 are correspondingly disposed on the hub 11 The inner tooth surface 113 of the hub is radially inward, and the plurality of through holes 512 are correspondingly disposed on the outer side of the radial direction of the speed regulating flange 163 of the speed control sleeve 161, and the plurality of through holes 512 are respectively radially penetrated. The ring gear 51 is spaced apart from the elongated hole, and the synchronous internal tooth surface 513 is annularly disposed on Close to the ring gear 51 of the output-side inner side wall 112, and the synchronization and a plurality of inner toothing gear of the third planetary gear unit 40 42 513 face each other.
請參看圖2、圖4與圖6，該第四離合器52設置於該環齒輪51的複數個置齒孔512內且包括複數個插銷521以及複數個第四棘爪522，各插銷521軸向設置於各置齒孔512中，且各插銷521軸向穿設各第四棘爪522，較佳的是，各第四棘爪522為V字型棘爪，各第四棘爪522透過該各插銷521而樞設於各置齒孔512中，因該調速凸緣163抵靠於各第四棘爪522的其中一端讓各第四棘爪522限位，則各第四棘爪522與該輪轂11的輪轂內齒面113形成一空隙，使得各第四棘爪522無法卡扣於該輪轂內齒面113，較佳的是，各第四棘爪522、該調速凸緣163以及該第二棘爪32的位置直線相對。 Referring to FIG. 2, FIG. 4 and FIG. 6, the fourth clutch 52 is disposed in the plurality of pinholes 512 of the ring gear 51 and includes a plurality of pins 521 and a plurality of fourth pawls 522. Each of the pins 512 is disposed in the respective through holes 512, and each of the pins 521 is axially disposed through each of the fourth pawls 522. Preferably, each of the fourth pawls 522 is a V-shaped pawl, and each of the fourth pawls 522 passes through the Each of the latches 521 is pivotally disposed in each of the through holes 512. Since the timing flange 163 abuts against one end of each of the fourth pawls 522 to limit the fourth pawls 522, the fourth pawls 522 Forming a gap with the inner tooth surface 113 of the hub of the hub 11, so that the fourth pawls 522 cannot be engaged with the inner tooth surface 113 of the hub. Preferably, each of the fourth pawls 522 and the speed control flange 163 And the position of the second pawl 32 is linearly opposed.
如圖4所示，本發明係能夠由該傳動變速單元20輸入動力至該第二變速單元30、該第三變速單元40以及該第四變速單元50，藉由該調速套筒161之調整切換不同檔位，進而產生不同的速差，並將動力傳遞至該輪轂單元10。 As shown in FIG. 4, the present invention is capable of inputting power from the transmission shifting unit 20 to the second shifting unit 30, the third shifting unit 40, and the fourth shifting unit 50, and adjusting the speed adjusting sleeve 161. Switching different gear positions, thereby generating different speed differences, and transmitting power to the hub unit 10.
如圖7所示，其係本發明的第一較佳實施例的第一檔(低速檔)的動力傳送方向示意圖，藉由調整鎖在該調速套筒161的調速把手，使得該調速套筒161滑向靠近該輸出側112，則該調速套筒161的調速凸緣163抵靠於第四離合器52的各第四棘爪522，使得各第四棘爪522未卡制於該輪轂11的輪轂內齒面113，其中動力由一鏈條帶動該鏈盤23轉動，該鏈盤23同步帶動該套筒本體211轉動，而因該第一棘爪212嚙合於該環齒輪51的單向棘輪面511，使得該環齒輪51隨之轉動，該環齒輪51的同步內齒面513帶動該第三變速單元40的至少一行星齒輪42轉動，而該至少一行星齒輪42經由該太陽齒面152帶動該第二行星臂41轉動，因該第三棘爪43卡制於輪轂11的輪轂棘輪面115，則最終動力由該第二行星臂41透過該第三棘爪43傳遞至該輪轂11而輸出。 As shown in FIG. 7, it is a schematic diagram of a power transmission direction of a first gear (low gear) of the first preferred embodiment of the present invention, which is adjusted by adjusting a speed control handle locked to the speed control sleeve 161. The speed sleeve 161 is slid toward the output side 112, and the speed control flange 163 of the speed control sleeve 161 abuts against the fourth pawls 522 of the fourth clutch 52, so that the fourth pawls 522 are not locked. In the hub inner tooth surface 113 of the hub 11, wherein the power is rotated by a chain, the chain plate 23 synchronously drives the sleeve body 211 to rotate, and the first pawl 212 is engaged with the ring gear 51. The one-way ratchet surface 511 causes the ring gear 51 to rotate accordingly. The synchronous internal tooth surface 513 of the ring gear 51 drives the at least one planetary gear 42 of the third shifting unit 40 to rotate, and the at least one planetary gear 42 passes through the The sun tooth surface 152 drives the second planet arm 41 to rotate. Since the third pawl 43 is engaged with the hub ratchet surface 115 of the hub 11, the final power is transmitted by the second planet arm 41 through the third pawl 43 to The hub 11 is output.
如圖8與圖9所示，其係本發明的第一較佳實施例的第二檔(直接輸出檔)的動力傳動方向示意圖，調整固接於該調速套筒161的控制桿155，即拉動該連結桿156朝遠離該輸入側111的方向移動，則該壓縮彈簧162相對該第一檔時緊縮，使得該調速套筒161相對該第一檔位置靠近該輸入側111，此時，該調速套筒161的調速凸緣163未抵靠於第四離合器52的各第四棘爪522，如圖9所示，該環齒輪51旋轉時的離心力讓各第四棘爪522的一端翹起，使得各第四棘爪522卡制於該輪轂11的輪轂內齒面113，動力由該鏈條帶動該鏈盤23轉動，該鏈盤23同步帶動該套筒本體211轉動，而因該第一棘爪212嚙合於該環齒輪51的單向棘輪面511，使得該環齒輪51隨之轉動，因各第四棘爪522卡制於該輪轂11 的輪轂內齒面113，使得最終動力由該環齒輪51直接透過該第四離合器52傳遞至該輪轂11而直接輸出。 As shown in FIG. 8 and FIG. 9 , it is a schematic diagram of the power transmission direction of the second gear (direct output gear) of the first preferred embodiment of the present invention, and the control lever 155 fixed to the speed control sleeve 161 is adjusted. That is, when the connecting rod 156 is pulled away from the input side 111, the compression spring 162 is tightened relative to the first gear, so that the speed control sleeve 161 is close to the input side 111 with respect to the first gear position. The speed regulating flange 163 of the speed control sleeve 161 does not abut against the fourth pawls 522 of the fourth clutch 52. As shown in FIG. 9, the centrifugal force when the ring gear 51 rotates allows the fourth pawls 522. One end of the second pawl 522 is clamped to the hub inner tooth surface 113 of the hub 11, and the power is driven by the chain to rotate the chain plate 23, and the chain plate 23 synchronously drives the sleeve body 211 to rotate. Since the first pawl 212 is engaged with the one-way ratchet surface 511 of the ring gear 51, the ring gear 51 rotates accordingly, because each of the fourth pawls 522 is engaged with the hub 11 The inner hub surface 113 of the hub causes the final power to be directly transmitted by the ring gear 51 directly transmitted through the fourth clutch 52 to the hub 11.
如圖10所示，其係本發明的第一較佳實施例的第三檔(高速檔)的動力傳動方向示意圖，調整固接於該調速套筒161的控制桿155，即進一步拉動該連結桿156朝遠離該輸入側111的方向移動，則該壓縮彈簧162相對該第二檔時緊縮，此時，該調速套筒161的調速凸緣163未抵靠於第四離合器52的各第四棘爪522，且該調速套筒161的調速棘輪面165對應設置於該第二變速單元30的第二棘爪32的徑向外側，使得該第二棘爪32卡制於該調速棘輪面165，如圖11所示，使得各第四棘爪522卡制於該輪轂11的輪轂內齒面113，動力由該鏈條帶動該鏈盤23轉動，如圖12所示，各第一棘爪212為單向棘爪式離合器，各第一棘爪212置於該套筒本體211所設置的棘爪槽內，並連結件該套筒本體211與該環齒輪51，當該套筒本體211的轉速小於該環齒輪51，此時該單向棘輪面511會產生一力將各第一棘爪212壓回棘爪槽內，使得該套筒本體211與該環齒輪51的斷開，此特性稱為超速(Overunning)特性，則各第一棘爪212脫離該單向棘輪面511而不產生卡制效果，相同的，因該輪轂11的角速度大於該第二行星臂41的角速度而產生超速特性，使該第三棘爪43脫離該輪轂棘輪面115而不產生卡制效果，則該動力經由該鏈盤23傳遞至該調速機構16，因該第二棘爪32卡制於該第二變速單元165，使得該調速機構16帶動該第一行星臂31轉動，而該第一行星臂31經由該太陽齒面152帶動該第三變速單元40的行星齒輪42，使得該行星齒輪42透過該同步內齒面513而帶動該環齒輪51轉動，因各第四棘爪522卡制於該輪轂11的輪轂內齒面113，則該環齒輪51藉由各第四棘爪522帶動該輪轂11，則最終動力由該環齒輪51經由該第四離合器52傳遞至該輪轂11而輸出。 As shown in FIG. 10, it is a schematic diagram of the power transmission direction of the third gear (high speed gear) of the first preferred embodiment of the present invention, and the control lever 155 fixed to the speed control sleeve 161 is adjusted to further pull the When the connecting rod 156 moves away from the input side 111, the compression spring 162 is tightened relative to the second gear. At this time, the speed regulating flange 163 of the speed adjusting sleeve 161 does not abut the fourth clutch 52. Each of the fourth pawls 522, and the speed regulating ratchet surface 165 of the speed control sleeve 161 is disposed on a radially outer side of the second pawl 32 of the second shifting unit 30, so that the second pawl 32 is locked The speed adjusting ratchet surface 165, as shown in FIG. 11, causes the fourth pawl 522 to be engaged with the hub inner tooth surface 113 of the hub 11, and the power is driven by the chain to rotate the chain plate 23, as shown in FIG. Each of the first pawls 212 is a one-way pawl clutch, and each of the first pawls 212 is disposed in a pawl groove provided in the sleeve body 211, and the sleeve body 211 and the ring gear 51 are coupled. The rotation speed of the sleeve body 211 is smaller than the ring gear 51. At this time, the one-way ratchet surface 511 generates a force to press the first pawls 212 back to the pawl. Internally, the sleeve body 211 is disconnected from the ring gear 51. This characteristic is called an overrunning characteristic, and each of the first pawls 212 is disengaged from the one-way ratchet surface 511 without causing a carding effect, the same. The overspeed characteristic is generated because the angular velocity of the hub 11 is greater than the angular velocity of the second planetary arm 41, and the third pawl 43 is disengaged from the hub ratchet surface 115 without causing a clamping effect, and the power is transmitted via the sprocket 23 To the speed regulating mechanism 16, the second pawl 32 is engaged with the second shifting unit 165, so that the speed adjusting mechanism 16 drives the first planetary arm 31 to rotate, and the first planetary arm 31 passes the solar tooth The surface 152 drives the planetary gear 42 of the third shifting unit 40 such that the planetary gear 42 transmits the ring gear 51 through the synchronous internal tooth surface 513, because each of the fourth pawls 522 is locked in the hub of the hub 11. In the tooth surface 113, the ring gear 51 drives the hub 11 by the fourth pawls 522, and the final power is transmitted from the ring gear 51 to the hub 11 via the fourth clutch 52 to be output.
如圖13所示，本發明的第二較佳實施例的結構大致與第一較佳實施例相同，其差別在於：該調速凸緣163A朝該輸出側112方向偏移，使得該 調速凸緣163A與各第四棘爪522徑向偏移，該調速棘輪面165A由靠近該輸出側112的側面延伸至與該調速凸緣163A徑向切齊，且該第二棘爪32A與該調速凸緣163A同步偏移。 As shown in FIG. 13, the structure of the second preferred embodiment of the present invention is substantially the same as that of the first preferred embodiment, with the difference that the timing flange 163A is offset toward the output side 112 such that the The speed control flange 163A is radially offset from each of the fourth pawls 522, and the speed control ratchet surface 165A extends from a side surface adjacent to the output side 112 to be radially aligned with the speed control flange 163A, and the second spine The pawl 32A is offset in synchronization with the speed control flange 163A.
如圖13所示，其係本發明的第二較佳實施例的第一檔位的動力傳送方向示意圖，其動力傳送方向與該第一較佳實施例的第一檔位相同，容不再贅述；如圖14所示，其係本發明的第二較佳實施例的第二檔的動力傳送方向示意圖，拉動該連結桿156朝遠離該輸入側111的方向移動，則該壓縮彈簧162相對該第一檔時緊縮，使得該調速套筒161A相對該第一檔位置靠近該輸入側111，此時，該調速套筒161A的調速凸緣163A抵靠於第四離合器52的各插銷522，因該調速凸緣163A抵靠於各第四棘爪522的其中一端讓各第四棘爪522限位，則各第四棘爪522與該輪轂11的輪轂內齒面113形成一空隙，使得各第四棘爪522未卡制於該輪轂11的輪轂內齒面113，且該調速套筒161A的調速棘輪面165A對應設置於該第二變速單元30的第二棘爪32A的徑向外側，使得該第二棘爪32A卡制於該調速棘輪面165A，動力由該一鏈條帶動該鏈盤23轉動，該鏈盤23同步帶動該套筒本體211轉動，該套筒本體211進而帶動該調速套筒161A轉動，該調速套筒161A藉由該調速棘輪面165A與第二棘爪32A相嚙合該帶動該第一行星臂31A轉動，該第一行星臂31A藉由該主軸15帶動該第二行星臂41轉動，因該第三棘爪43卡制於輪轂11的輪轂內齒面113，則最終動力由該第二行星臂41透過該第三棘爪43傳遞至該輪轂11而輸出；如圖15所示，其係本發明的第二較佳實施例的第三檔位的動力傳送方向示意圖，其動力傳送方向與該第一較佳實施例的第三檔位相同，容不再贅述。 As shown in FIG. 13 , it is a schematic diagram of the power transmission direction of the first gear position of the second preferred embodiment of the present invention, and the power transmission direction is the same as the first gear position of the first preferred embodiment. As shown in FIG. 14, which is a schematic diagram of the power transmission direction of the second gear of the second preferred embodiment of the present invention, when the connecting rod 156 is pulled away from the input side 111, the compression spring 162 is opposite. The first gear is tightened such that the speed control sleeve 161A is close to the input side 111 with respect to the first gear position. At this time, the speed regulating flange 163A of the speed control sleeve 161A abuts against each of the fourth clutches 52. The latch 522 forms a fourth pawl 522 and a hub internal tooth surface 113 of the hub 11 because the timing flange 163A abuts against one end of each of the fourth pawls 522 to limit the fourth pawls 522. a gap, such that the fourth pawl 522 is not engaged with the hub inner tooth surface 113 of the hub 11, and the speed regulating ratchet surface 165A of the speed control sleeve 161A corresponds to the second spine of the second shifting unit 30. The radially outer side of the claw 32A causes the second pawl 32A to be engaged with the speed regulating ratchet surface 165A, and the power is A chain guide rotates the chain plate 23, and the chain plate 23 synchronously drives the sleeve body 211 to rotate. The sleeve body 211 further drives the speed control sleeve 161A to rotate. The speed control sleeve 161A uses the speed regulating ratchet surface. Engagement 165A with the second pawl 32A drives the first planet arm 31A to rotate. The first planet arm 31A drives the second planet arm 41 to rotate by the spindle 15 because the third pawl 43 is engaged with the hub. The inner tooth surface 113 of the hub 11 is finally outputted by the second planetary arm 41 to the hub 11 through the third pawl 43; as shown in FIG. 15, it is a second preferred embodiment of the present invention. The power transmission direction of the third gear position is the same as the third gear position of the first preferred embodiment, and details are not described herein.
10‧‧‧輪轂單元 10‧‧‧Wheel unit
11‧‧‧輪轂 11‧‧·wheels
111‧‧‧輸入側 111‧‧‧ Input side
112‧‧‧輸出側 112‧‧‧Output side
113‧‧‧輪轂內齒面 113‧‧·Inner hub
114‧‧‧容置槽 114‧‧‧ accommodating slots
115‧‧‧輪轂棘輪面 115‧‧·wheel hub ratchet
12‧‧‧防塵蓋 12‧‧‧Dust cover
121‧‧‧通孔 121‧‧‧through hole
13‧‧‧滾珠軸承座 13‧‧‧Ball bearing housing
14‧‧‧滾珠軸承 14‧‧‧ Ball Bearings
15‧‧‧主軸 15‧‧‧ Spindle
151‧‧‧致動槽 151‧‧‧ actuation slot
153‧‧‧控制槽 153‧‧‧Control slot
154‧‧‧穿設孔 154‧‧‧through holes
155‧‧‧控制桿 155‧‧‧Control lever
156‧‧‧連結桿 156‧‧‧ Connecting rod
16‧‧‧調速機構 16‧‧‧Speed governing mechanism
161‧‧‧調速套筒 161‧‧‧Speed sleeve
162‧‧‧壓縮彈簧 162‧‧‧Compressed spring
163‧‧‧調速凸緣 163‧‧‧Speed flange
164‧‧‧調速室 164‧‧"Speed Control Room
165‧‧‧調速棘輪面 165‧‧‧Speed ratchet
20‧‧‧傳動變速單元 20‧‧‧Transmission gear unit
21‧‧‧鏈盤套筒機構 21‧‧‧Chassis sleeve mechanism
211‧‧‧套筒本體 211‧‧‧Sleeve body
212‧‧‧第一棘爪 212‧‧‧First pawl
213‧‧‧內滾珠軸承 213‧‧‧Inner ball bearings
22‧‧‧外滾珠軸承 22‧‧‧Outer ball bearings
23‧‧‧鏈盤 23‧‧‧Chassis
30‧‧‧第二變速單元 30‧‧‧Second gear unit
31‧‧‧第一行星臂 31‧‧‧First Planetary Arm
32‧‧‧第二棘爪 32‧‧‧second pawl
40‧‧‧第三變速單元 40‧‧‧3rd shifting unit
41‧‧‧第二行星臂 41‧‧‧second planetary arm
42‧‧‧行星齒輪 42‧‧‧ planetary gear
43‧‧‧第三棘爪 43‧‧‧ Third pawl
50‧‧‧第四變速單元 50‧‧‧4th shifting unit
51‧‧‧環齒輪 51‧‧‧ring gear
511‧‧‧單向棘輪面 511‧‧‧One-way ratchet
512‧‧‧置齒孔 512‧‧‧Aperture
513‧‧‧同步內齒面 513‧‧‧Synchronous internal tooth surface
52‧‧‧第四離合器 52‧‧‧fourth clutch
521‧‧‧插銷 521‧‧‧ latch
522‧‧‧第四棘爪 522‧‧‧fourth pawl
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103143416A TWI557019B (en) | 2014-12-12 | 2014-12-12 | Bicycle three speed inner speed change mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103143416A TWI557019B (en) | 2014-12-12 | 2014-12-12 | Bicycle three speed inner speed change mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW201620781A TW201620781A (en) | 2016-06-16 |
| TWI557019B true TWI557019B (en) | 2016-11-11 |
Family
ID=56755279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW103143416A TWI557019B (en) | 2014-12-12 | 2014-12-12 | Bicycle three speed inner speed change mechanism |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI557019B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106741561B (en) * | 2016-12-31 | 2022-04-08 | 张家港川梭车业有限公司 | Three-gear full-automatic transmission |
| CN108266500A (en) * | 2017-01-04 | 2018-07-10 | 李激初 | Centre wheel two-way clutch control mechanism and its speed changer of application |
| TWI673199B (en) * | 2018-02-06 | 2019-10-01 | 大陸商寧波彰星進出口有限公司 | Internal three-speed dual clutch transmission |
| CN108974243B (en) * | 2018-09-12 | 2024-02-13 | 昆山唐泽新能源科技有限公司 | Automatic speed-changing hub |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179953A (en) * | 1976-04-21 | 1979-12-25 | Shimano Industrial Company, Limited | Gear transmission control device for multiple-speed hub for bicycles |
| US4615423A (en) * | 1982-08-17 | 1986-10-07 | Fichtel & Sachs Ag | Hub for a two-wheeled vehicle |
| TW284734B (en) * | 1994-04-28 | 1996-09-01 | Shimano Kk |
-
2014
- 2014-12-12 TW TW103143416A patent/TWI557019B/en not_active IP Right Cessation
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4179953A (en) * | 1976-04-21 | 1979-12-25 | Shimano Industrial Company, Limited | Gear transmission control device for multiple-speed hub for bicycles |
| US4615423A (en) * | 1982-08-17 | 1986-10-07 | Fichtel & Sachs Ag | Hub for a two-wheeled vehicle |
| TW284734B (en) * | 1994-04-28 | 1996-09-01 | Shimano Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201620781A (en) | 2016-06-16 |
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| Date | Code | Title | Description |
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| MM4A | Annulment or lapse of patent due to non-payment of fees |