TWI735230B - Bicycle shift operating device - Google Patents

Abstract

A bicycle shift operating device includes a frame, a cable spool assembly, an elastic component, an upshift lever, a drive pawl, a positioning pawl, a pushed component and a downshift lever. The cable spool assembly is rotatably disposed on the frame. The elastic component is configured to force the cable spool assembly to rotate along a released direction. The upshift lever is pivotably disposed on the frame, and the drive pawl is pivotably disposed on the upshift lever. The positioning pawl is pivotably disposed on the frame, and is detachably engaged with the cable spool assembly. The pushed component includes a pivot part and two contact parts. The pivot part is pivotably disposed on the frame, and the contact parts are respectively connected to two opposite sides of the pivot part. One contact part is in contact with the positioning pawl. The downshift lever is pivotably disposed on the frame. The downshift lever has two contact surfaces. The contact surfaces are respectively in contact with the contact parts. The downshift lever is pivotable from an initial position along two opposite directions for shifting a bicycle derailleur.

Description

Variable speed operating device

The present invention relates to an operating device, especially a variable speed operating device.

In recent years, the sports atmosphere has become more and more popular, especially cycling, which has become one of the mainstream leisure activities for the masses. In order to increase riding operability, general bicycles are often equipped with multiple chainrings, transmissions, and operating devices that control the transmission. Riders can operate the operating devices according to terrain or other needs to switch the chain to different gears through the transmission. Disc, and then obtain the required riding effect.

The aforementioned operating device is usually equipped with a shift lever to allow the rider to perform shift actions on the transmission. However, in the current common operating devices, the shift lever can only be operated in a single direction, but such an operation direction does not necessarily conform to the rider's habits, and the rider may not operate the shift lever smoothly. Therefore, researchers in this field are currently working on solving the aforementioned problems.

The present invention is to provide a gear shift operating device to solve the problem that the shift lever described in the prior art can only be operated in a single direction.

An embodiment of the present invention discloses a variable speed operating device for being installed on a handlebar and pulling a bicycle cable, comprising a frame body, a winding assembly, a first elastic biasing member, and a gear shift Lever, a gear-in pawl, a positioning pawl, a pushed part and a gear-back lever. The winding assembly is rotatably arranged on the frame body, and the winding assembly is used for winding the bicycle cable. The first elastic biasing member is disposed on the winding assembly, and the first elastic biasing member is used for applying a force for the winding assembly to rotate in a relaxation direction. The gear shift lever is pivoted on the frame. The gear shift pawl is pivoted on the gear shift lever. When the shift lever is actuated, the shift lever drives the winding assembly to rotate in a tightening direction opposite to the loosening direction through the shift pawl. The positioning pawl is pivoted on the frame body, and the positioning pawl is detachably engaged with the winding assembly. The movement of the shifting pawl and the positioning pawl are independent. The pushed member includes a pivoting portion, a first abutting portion, and a second abutting portion. The pivotal portion is pivoted on the frame body, the first abutment portion and the second abutment portion are respectively connected to two opposite sides of the pivotal portion, and the first abutment portion abuts against the positioning pawl. The shift lever is pivoted on the frame, and the shift lever has a first abutting surface and a second abutting surface. The first abutment surface and the second abutment surface respectively face different directions, and the first abutment surface and the second abutment surface respectively abut the first abutment portion and the second abutment portion. The back gear lever can pivot from an initial position in a first direction or a second direction opposite to each other. When the back shift lever pivots in the first direction from the initial position, the first abutment surface of the back shift lever pushes against the first abutment portion, so that the first abutment portion drives the positioning pawl to separate from the winding assembly . When the back shift lever pivots in the second direction from the initial position, the second abutment surface of the back shift lever pushes against the second abutment portion, so that the first abutment portion drives the positioning pawl to separate from the winding assembly .

According to the shift operating device of the above-mentioned embodiment, the first abutting portion and the second abutting portion of the pushed member are respectively connected to two opposite sides of the pivoting portion, and the first abutting portion abuts against the shift lever The first abutment surface and the positioning pawl, and the second abutment portion abuts against the second abutment surface of the back shift lever, so that the back shift lever from the initial position along the first direction or the second direction When pivoting, the first abutment surface of the back shift lever pushes against the first abutment part, or the second abutment surface of the back shift lever pushes against the second abutment part, so that the first abutment part drives the positioning The pawl is separated from the take-up assembly to allow the take-up assembly to rotate in a relaxed direction under the action of the first elastic biasing member to back-shift the transmission. therefore, The rider can choose the direction he is more accustomed to operating the shift lever in two different directions, so the smoothness of operating the shift lever is improved.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

1: Variable speed operating device

10: Frame

11: bottom plate

111: Lean against the convex part

12: Top plate

121: Lean against the convex part

20: take-up assembly

21: Puller

211: Piercing

22: Traction ratchet

221: cogging

222: Teeth

23: positioning ratchet

231: cogging

232: Teeth

30: Gear shift lever

31: Pivot

311: Perforation

312: Ring bump

32: pawl seat

321: Combined column

33: Joystick

40: The first elastic biasing member

50: Inward gear pawl

51: meshing part

52: Contact

60: Positioning pawl

61: Meshing part

62: Promoted Department

63: Lean against the column

70: Pushed item

71: Pivot

72: The first abutment part

73: The second abutment part

80: Shift lever

81: Piercing

82: The first abutment surface

83: second abutment surface

84: Long slot

90: shell

91: lower cover

911: assembly hole

92: upper cover

S: Internal space

100: Bolt

110: sleeve

120: pivot assembly

1201, 1202: bearing

1203: Bearing spacer ring

1204: bearing gasket

1205: shift lever pivot

1206: Pivot Bolt

130: second elastic biasing member

140: stop ring

150: second elastic biasing member

160: pivot

170: Ring

180: cover

1801: against the convex part

190: Bolt

200: stop pawl

2001: meshing part

2002: Promoted Department

210: Spacer ring

220, 230: second elastic biasing member

240: pivot

250: Bolt

260: second elastic biasing member

270: Pivot

280: Bolt

290: limit piece

P1, P2, P3: axis

L1, L2: connection

θ : included angle

D1, D2: direction

Fig. 1 is a perspective view of a gear shift operating device according to a first embodiment of the present invention.

Fig. 2 is an exploded schematic diagram of Fig. 1.

3 to 5 are exploded schematic diagrams of different parts of the components in FIG. 2.

Fig. 6 is a perspective schematic view of the shift operating device of Fig. 1 with the upper cover removed.

FIG. 7 is a three-dimensional schematic diagram of the shift operating device of FIG. 1 with the upper cover removed from another perspective.

Fig. 8 is a schematic cross-sectional view of the shift operating device of Fig. 1.

FIG. 9 is a schematic cross-sectional view of the gear shift lever of FIG. 8 when it is actuated.

Fig. 10 is a schematic cross-sectional view of the shift lever of Fig. 9 returning to its original position.

11 is a schematic cross-sectional view of the shift lever of FIG. 10 pivoting to the first shift position along the first direction.

Fig. 12 is a schematic cross-sectional view of the back shift lever of Fig. 11 returning to an initial position.

13 is a schematic cross-sectional view of the shift lever of FIG. 10 pivoting to the second shift position along the second direction.

Please refer to Figure 1 to Figure 5. Figure 1 is a speed change according to the first embodiment of the present invention Three-dimensional schematic diagram of the operating device. Fig. 2 is an exploded schematic diagram of Fig. 1. 3 to 5 are exploded schematic diagrams of different parts of the components in FIG. 2.

In this embodiment, the shift operating device 1 is used to install a handlebar (not shown) and pull a bicycle cable (not shown). The speed change operating device 1 includes a frame body 10, a winding assembly 20, a shift lever 30, a first elastic biasing member 40, a shift pawl 50, a positioning pawl 60, and a push member 70 And a back shift lever 80. In addition, in this embodiment or other embodiments, the shift operating device 1 may further include a housing 90.

Next, please refer to FIGS. 6 to 8 together with the aforementioned drawings. FIG. 6 is a perspective view of the shift operating device of FIG. 1 with the upper cover removed. FIG. 7 is a three-dimensional schematic diagram of the shift operating device of FIG. 1 with the upper cover removed from another perspective. Fig. 8 is a schematic cross-sectional view of the shift operating device of Fig. 1.

The housing 90 includes a lower cover 91 and an upper cover 92. The lower cover 91 and the upper cover 92 can be locked by a plurality of bolts 100 to jointly surround an internal space S. The lower cover 91 has an assembling hole 911, and the assembling hole 911 is connected to the inner space S of the housing 90.

The frame body 10 and the winding assembly 20 are located in the internal space S of the housing 90. The frame 10 includes a bottom plate 11 and a top plate 12. The bottom plate 11 is fixed to the lower cover 91 via bolts 100, and the top plate 12 and the bottom plate 11 are kept at a distance. The winding assembly 20 is located between the bottom plate 11 and the top plate 12, and the winding assembly 20 includes a pulling wheel 21, a traction ratchet 22 and a positioning ratchet 23. The traction ratchet 22 and the positioning ratchet 23 are respectively fixed at two opposite ends of the pulling wheel 21, and the traction ratchet 22 is closer to the bottom plate 11 than the positioning ratchet 23 is. In this embodiment, the pulling wheel 21 has a through hole 211, and the speed change operating device 1 further includes a sleeve 110. Wherein, the sleeve 110 is arranged in the through hole 211 of the pulling wheel 21.

The shift lever 30 includes a pivot portion 31, a pawl seat 32 and an operating rod 33. Both the pawl seat 32 and the operating rod 33 protrude from the radial direction of the pivotal portion 31. The pivot portion 31 of the shift lever 30 penetrates the assembly hole 911 of the lower cover 91, and the pawl seat 32 and the operating rod 33 are respectively located inside and outside the internal space S of the housing 90, and the shift lever 30 The pivot portion 31 is located on the side of the bottom plate 11 away from the winding assembly 20.

In this embodiment, the pivot portion 31 of the shift lever 30 has a through hole 311 and an annular protrusion 312 protruding from the inner wall of the through hole 311, and the shift operating device 1 may further include a pivot assembly 120 . The pivot assembly 120 includes two bearings 1201, 1202, a bearing spacer ring 1203, a bearing pad 1204, a shift lever pivot 1205, and a pivot bolt 1206. The two bearings 1201 and 1202 are located in the through hole 311 of the pivotal portion 31 and are located on opposite sides of the annular protrusion 312 respectively. The bearing spacer ring 1203 is located in the space surrounded by the annular protrusion 312 and is sandwiched between the two bearings 1201 and 1202. The bearing pad 1204 is located on the side of the bearing 1202 facing away from the bearing 1201. The shift lever pivot 1205 passes through the bearing 1201, the bearing spacer ring 1203, the bearing 1202, and the bearing spacer 1204 in sequence, the pivot bolt 1206 passes through the sleeve 110 and the bottom plate 11, and the opposite ends of the pivot bolt 1206 are respectively It is locked to the shift lever pivot 1205 and the top plate 12. In this embodiment, the pulling wheel 21, the traction ratchet 22, and the positioning ratchet 23 can be rotated together relative to the bottom plate 11 and the top plate 12 of the frame 10 through the sleeve 110, and the shift lever 30 is through the shift lever pivot 1205. It can pivot relative to the bottom plate 11 of the frame 10.

The traction ratchet 22 has multiple fixed tooth grooves 221. A tooth portion 222 is formed between every two adjacent tooth grooves 221. In addition, the positioning ratchet 23 also has a plurality of tooth grooves 231, and a tooth portion 232 is formed between every two adjacent tooth grooves 231. From Figure 8, each of the adjacent two slots 231 The two connecting lines L1 and L2 between the bottom of the groove and the rotation axis P1 of the positioning ratchet 23 form an included angle θ.

In this embodiment, the cable wheel 21 is used to fix one end of a bicycle cable (not shown), and the other end of the bicycle cable is used to connect to a bicycle transmission (not shown), such as a rear derailleur. When the integral take-up assembly 20 rotates in a loosening direction D1, the bicycle cable can be loosened and the transmission can be reversed; furthermore, after the positioning ratchet 23 rotates in the loosening direction D1 by an angle θ, the transmission can be reversed by one gear. . Conversely, when the integral take-up assembly 20 rotates in a tightening direction D2 opposite to the loosening direction D1, the bicycle cable can be tightened to move the transmission into gear; furthermore, the positioning ratchet 23 rotates in the tightening direction D2 After an angle of θ, the transmission can be moved into one gear.

The first elastic biasing member 40 is, for example, a torsion spring. The first elastic biasing member 40 is partially located between the traction ratchet 22 and the bottom plate 11, and two opposite ends of the first elastic biasing member 40 are respectively fixed to the bottom plate 11 and the pulling wheel 21. The first elastic biasing member 40 is used to apply a force for the integral winding assembly 20 to rotate in the relaxation direction D1. In addition, the shift operating device 1 further includes a second elastic biasing member 130. The second elastic biasing member 130 is, for example, a torsion spring. The second elastic biasing member 130 is partially located between the bottom plate 11 and the pivoting portion 31 of the shift lever 30, and two opposite ends of the second elastic biasing member 130 are respectively fixed to the bottom plate 11 and the pivoting portion 31. The second elastic biasing member 130 is used to apply a force for the entire shift lever 30 to pivot in a direction similar to the loosening direction D1 (clockwise in the viewing angle of FIG. 8 ).

In this embodiment, the pawl seat 32 of the shift lever 30 has a coupling column portion 321. The shifting pawl 50 is pivoted on the connecting column portion 321 of the pawl seat 32, and the shifting pawl 50 is stopped by a stop ring 140 installed on the connecting column portion 321 and cannot be separated from the connecting column portion 321. The bottom plate 11 has an abutting convex portion 111 extending toward the top plate 12, and the shift pawl 50 There is a engaging portion 51 and a contact portion 52. The engagement portion 51 and the contact portion 52 of the shift pawl 50 are located on opposite sides of the pivot axis P2 of the shift pawl 50, and the engagement portion 51 and the contact portion 52 respectively correspond to the abutment protrusions of the traction ratchet 22 and the bottom plate 11部111. As shown in FIG. 8, when the shift lever 30 is not actuated, the contact portion 52 of the shift pawl 50 normally abuts against the abutting convex portion 111 of the bottom plate 11, so that the shift pawl 50 The engaging portion 51 is separated from the traction ratchet 22.

In this embodiment, the shift operating device 1 further includes another second elastic biasing member 150. The second elastic biasing member 150 is, for example, a torsion spring. The second elastic biasing member 150 is sleeved on the coupling column portion 321 of the pawl seat 32, and one end of the second elastic biasing member 150 is fixed to the pawl seat 32, and the other end of the second elastic biasing member 150 is pressed against At the meshing portion 51 of the shift pawl 50. The second elastic biasing member 150 is used for applying a force that the engaging portion 51 of the shift pawl 50 pivots toward the traction ratchet wheel 22.

In this embodiment, the shift operating device 1 further includes a pivot 160, a sleeve ring 170, a cover plate 180, a bolt 190, a stop pawl 200, and a spacer ring 210. The opposite ends of the pivot 160 are disposed on the bottom plate 11 and the top plate 12, the collar 170 is stacked on a side of the top plate 12 away from the bottom plate 11, and the cover plate 180 is stacked on a side of the collar 170 away from the top plate 12. The bolt 190 penetrates the cover plate 180, the collar 170, and the top plate 12 and is locked to the pivot 160. The positioning pawl 60, the stopping pawl 200 and the spacer ring 210 are sleeved on the pivot 160, and the spacer ring 210 is located between the stopping pawl 200 and the positioning pawl 60, and the stopping pawl 200 is closer to the spacer ring 210底板11。 Floor 11.

In this embodiment, the shift operating device 1 further includes two other second elastic biasing members 220 and 230. In addition, the cover plate 180 has an abutting protrusion 1801 protruding toward the top plate 12, In addition, the top plate 12 has an abutting protrusion 121 protruding toward the bottom plate 11. In addition, the positioning pawl 60 has an engaging portion 61, a pushed portion 62 and a supporting column portion 63, and the stopping pawl 200 has an engaging portion 2001 and a pushed portion 2002. The engaging portion 61 and the pushed portion 62 of the positioning pawl 60 respectively extend in two different directions, and the engaging portion 2001 and the pushed portion 2002 of the stopping pawl 200 are respectively located on the pivot axis P3 of the stopping pawl 200 Opposite two sides.

The second elastic biasing member 220 is sleeved on the collar 170, and one end of the second elastic biasing member 220 abuts against the abutting protrusion 1801 of the cover plate 180, and the other end of the second elastic biasing member 220 abuts against The positioning pawl 60 abuts against the column portion 63. The second elastic biasing member 220 is used to apply a force for the engagement portion 61 of the positioning pawl 60 to pivot toward the positioning ratchet 23. When the positioning pawl 60 is not subjected to other external forces, the engagement portion 61 of the positioning pawl 60 is normally engaged with the tooth groove 231 of the positioning ratchet 23.

In addition, the second elastic biasing member 230 is sleeved on the pivot spacer ring 210. Two opposite ends of the second elastic biasing member 230 respectively press against the abutting convex portion 121 of the top plate 12 and the pushed portion 2002 of the stop pawl 200. The second elastic biasing member 230 is used to apply a force for the engagement portion 2001 of the stopping pawl 200 to pivot in a direction away from the traction ratchet 22. When the stopping pawl 200 is not subjected to other external forces, the meshing portion 2001 of the stopping pawl 200 is normally separated from the tooth groove 221 of the traction ratchet wheel 22.

In this embodiment, the shift operating device 1 further includes a pivot 240 and a bolt 250. The pivot 240 is inserted into the bottom plate 11, and one end of the pivot 240 away from the bottom plate 11 abuts against the top plate 12. The bolt 250 passes through the top plate 12 and is locked to the pivot 240. The pushed member 70 includes a pivoting portion 71, a first abutting portion 72 and a second abutting portion 73. The first abutting portion 72 and the second abutting portion 73 are respectively connected to two opposite sides of the pivoting portion 71. 71 sets of pivoting parts of the pushed member 70 It is arranged on the pivot 240 and can pivot relative to the bottom plate 11 and the top plate 12 through the pivot 240. The first abutting portion 72 of the pushed member 70 is partially located between the engaging portion 61 and the pushed portion 62 of the positioning pawl 60 and abuts against the pushed portion 62 of the positioning pawl 60, and the first portion of the pushed member 70 The abutting portion 72 and the second abutting portion 73 protrude from the top plate 12.

The shift lever 80 is located on a side of the top plate 12 away from the bottom plate 11, and one end of the cover plate 180 is stacked on a side of the shift lever 80 away from the top plate 12. The shift lever 80 has a through hole 81, and the shift operating device 1 further includes a pivot 270 and a bolt 280. The pivot 270 is located in the through hole 81 of the shift lever 80, and the bolt 280 passes through the cover 180 and is locked to the pivot 270. The shift lever 80 can pivot relative to the top plate 12 through the pivot 270.

In this embodiment, the shift operating device 1 further includes another second elastic biasing member 260, and the shift lever 80 further has a first abutting surface 82 and a second abutting surface 83. The first abutment surface 82 and the second abutment surface 83 face different directions, respectively. The second elastic biasing element 260 is sleeved on the pivot 240, one end of the second elastic biasing element 260 is fixed to the bottom plate 11, and the other end of the second elastic biasing element 260 is fixed to the first abutting portion 72. The second elastic biasing member 260 is used to apply a force that the first abutting portion 72 pivots toward the first abutting surface 82, so that the pushed member 70 is not subjected to other external forces, and the first abutting portion 72 normally abuts against the first abutment surface 82, and the second abutment portion 73 normally abuts against the second abutment surface 83.

In addition, the shift lever 80 also has an elongated slot 84, and the shift operating device 1 further includes a limiting member 290. The limiting member 290 penetrates through the long through slot 84 of the shift lever 80 and is fixed to the top plate 12. With the combination of the elongated through slot 84 and the limiting member 290, the stroke of the shift lever 80 pivoting in a first direction and a second direction opposite to each other can be restricted. The first direction is similar to the direction D1 (as shown in the clockwise direction of the viewing angle in Fig. 8), and the second direction is similar to the direction D2 (The viewing angle of Fig. 8 is counterclockwise), so in order to simplify the number of direction arrows and labels in the drawing, the first direction and direction D1 use the same arrows and labels, and the second direction and direction D2 use the same arrows and labels.

Next, first introduce the situation of the shifting operation of the shifting operating device 1, please refer to Figures 8 to 10. Figure 9 is a schematic cross-sectional view of the shift lever of Figure 8 when the shift lever is actuated, and Figure 10 is the shifting of Figure 9 A schematic cross-sectional view of the lever returning to its original position. It should be noted that, in order to make the gear shift operation of the gear shift operating device 1 better understandable, parts of the elements in FIGS. 8 to 10 are omitted or cut off to prevent these components from obscuring the gear shift operation of the gear shift operating device 1. In addition, in the illustration of the shifting operation, various arrows are supplemented to indicate the operating direction of the element or these elements, and if different elements move or rotate in the same direction, they can all be indicated by the same direction label. For example, the shift lever 30 can be toggled in the direction D2 to simultaneously drive the traction ratchet 22 to rotate in the direction D2.

As shown in Figs. 8 and 9, when the user wants to shift, the shift lever 30 can be pivoted in the direction D2. Once the shift lever 30 is pivotally actuated, the contact portion 52 of the shift pawl 50 is separated from the abutting protrusion 111 of the bottom plate 11, and the second elastic biasing member 150 forces the shift pawl 50 to engage The portion 51 pivots toward the traction ratchet 22 so that the meshing portion 51 of the shift pawl 50 is engaged with the tooth groove 221 of the traction ratchet 22. Then, the meshing portion 51 of the shift pawl 50 is engaged with the tooth groove 221 of the traction ratchet 22 to continue to pivot in the direction D2, because the surface of the meshing portion 51 of the shift pawl 50 and the tooth groove 221 of the traction ratchet 22 Therefore, the meshing portion 51 of the shifting pawl 50 will drive the traction ratchet 22, so that the traction ratchet 22, the puller 21 and the positioning ratchet 23 rotate in the direction D2 together. In this way, the rotation of the pulling wheel 21 will pull the bicycle cable (not shown), move the transmission into gear, and switch the bicycle chain to Different chainrings.

It is worth noting that, as shown in the above-mentioned Figures 8 and 9, during the pivoting of the traction ratchet 22 in the direction D2, the engagement portion 2001 of the stop pawl 200 is subjected to the second elastic biasing member 230 (as shown in Figure 7). The force shown) remains separated from the traction ratchet 22, so the meshing portion 2001 will not engage and block the rotation of the traction ratchet 22; on the other hand, the positioning ratchet 23 is pivoted in the direction D2 when the positioning ratchet 23 is pivoting The wall surface of the tooth groove 231 will push the engagement portion 61 of the positioning pawl 60 away, so the positioning pawl 60 will not prevent the positioning ratchet wheel 23 from rotating. And, in the process from FIG. 8 to FIG. 9, whenever the engagement portion 61 of the positioning pawl 60 passes over the tooth portion 232 of the positioning ratchet 23 but is affected by the force of the second elastic biasing member 220 and rebounds, the engagement The portion 61 engages with another tooth groove 231 and collides with the positioning ratchet 23. These impacts will generate acoustic feedback, and the user can use the acoustic feedback to determine whether the gear shift is successful, or determine the number of gears switched by the toggle.

In addition, it is understandable that the greater the rotation angle of the cable wheel 21 is, the bicycle chain can be passed over multiple chainrings at one time to achieve the effect of quickly switching gears. For example, from the shifting operation of FIGS. 8-9, the shifting amount of the shifting lever 30 in the direction D2 causes the engagement portion 61 of the positioning pawl 60 to pass over the two teeth 232 of the positioning ratchet 23 and to be located in the other tooth groove. 231; that is to say, the rotation angle of the positioning ratchet 23 is the angle of the two included angles θ, so the gear of the transmission is advanced by two gears, but in fact, the single maximum shift of the shift lever 30 in this embodiment in the direction Momentum can reach up to five gears at a time, but the present invention is not limited to this. For example, in other embodiments, the number of gears that can be advanced each time the forward shift lever or the maximum number of gears that can be moved in a single time is the maximum shift that can be shifted to the second direction by changing the forward shift lever. Momentum, or changing the ratio between the pawl and the ratchet is different.

As shown in FIG. 10, when switching to the desired gear position (as shown in FIG. 9), the user can release the shift lever 30 to allow the second elastic biasing member 130 (as shown in FIG. 2) The accumulated elastic force pivots the shift lever 30 and the shift pawl 50 in the direction D1 together to return to the original position. It is worth noting that during this process, the positioning ratchet 23 is affected by the force of the first elastic biasing member 40 and has a tendency to pivot in the direction D1. The stop of the first abutment portion 72 of 70 prevents the tooth portion 232 of the positioning ratchet 23 from pushing away the engagement portion 61 of the positioning pawl 60, resulting in the positioning ratchet 23 being unable to rotate in the direction D1 and being stopped at the last sound The position of the traction ratchet 22, the positioning ratchet 23 and the pulling wheel 21 are maintained at the positions shown in FIG. 8. However, for the shift pawl 50, the meshing portion 51 is not in contact with the wall surface of the tooth groove 221 (as shown in FIG. 9) of the traction ratchet 22 in the direction D1, so the meshing portion 51 can follow the shift lever The release of 30 sequentially passes over the teeth 222 of the traction ratchet 22 (as shown in FIG. 9) until the contact portion 52 abuts the abutting convex portion 111 of the bottom plate 11, and the meshing portion 51 of the shift pawl 50 is separated from The ratchet wheel 22 is pulled, and the shift lever 30 stops at the initial position. At this point, the shifting operation is completed.

Next, the situation of the gear shift operation of the shift operating device 1 will be introduced. Please refer to Figs. 11 to 12. Fig. 11 is a schematic cross-sectional view of the gear shift lever of Fig. 10 pivoting to the first gear shift position in the first direction. Fig. 12 is a schematic cross-sectional view of the back shift lever of Fig. 11 returning to an initial position. In the same way, in order to better understand the situation of the shift operation device 1 during the shift operation, some elements are omitted or cut off in FIGS. 11 and 12 to prevent these components from obscuring the shift operation device 1. In addition, various arrows are supplemented to indicate the operating direction of the element or elements in the illustration of the back-shift operation. In addition, if different elements move or rotate in the same direction, they can all be represented by the same direction numbers.

As shown in Figures 11 and 12, when the user wants to retreat, he can actuate the reverse gear lever 80. The so-called "actuating the reverse gear lever 80" here refers to applying force to move the reverse gear lever 80 in the direction After D1 pivots from the initial position to the first back-gear position, the force is canceled and the back-gear lever 80 is automatically reset from the first back-gear position to the initial position.

In detail, as shown in FIG. 11, during the process of the shift lever 80 pivoting from the initial position to the first shift position along the direction D1, the first abutment surface 82 of the shift lever 80 will push against The first abutting portion 72 of the pushing member 70 causes the first abutting portion 72 to push against the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stopping pawl 200, thereby pivoting the positioning pawl 60 And the stopping pawl 200, so that the engaging portion 61 of the positioning pawl 60 is separated from the tooth groove 231 of the positioning ratchet 23, and the engaging portion 2001 of the stopping pawl 200 then meshes with the tooth groove 221 of the traction ratchet 22, so the positioning ratchet 23. Under the action of the first elastic biasing member 40, the pulling wheel 21 and the traction ratchet wheel 22 rotate together in the direction D1 for a first stroke and then are stopped by the stopping pawl 200.

Then, as shown in FIG. 12, when the user releases the shift lever, the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stop pawl 200 are no longer subject to the first resistance of the pushed member 70. Due to the push of the back portion 72, the force of the second elastic biasing members 220, 230 (as shown in FIG. 7) causes the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stop pawl 200 to pass through. The first abutting portion 72 of the pushing member 70 drives the back gear lever 80 to pivot from the first back gear position to the initial position. Moreover, under the force of the second elastic biasing members 220 and 230 (as shown in FIG. 7), the meshing portion 2001 of the stopping pawl 200 is disengaged from the tooth groove 221 of the traction ratchet wheel 22 and the positioning pawl 60 respectively The meshing portion 61 is engaged with the other tooth groove 231 of the positioning ratchet 23, and the positioning ratchet 23, the pulling wheel 21 and the traction ratchet 22 are together under the action of the first elastic biasing member 40 After rotating in the direction D1 for a second stroke, it is stopped by the positioning pawl 60. At this point, the file back operation is completed. Wherein, after the positioning ratchet wheel 23 has rotated the first stroke and the second stroke, it has rotated by an angle θ. In other words, from the perspective of FIGS. 11 and 12, the engagement portion 61 of the positioning pawl 60 is changed from the original tooth groove 231 to be engaged with another tooth groove 231 adjacent in the direction D2. It can be seen from this that a single actuation of the shift lever 80 can only move the transmission back by one gear.

In this embodiment, with regard to the shifting operation of the shift operating device 1, in addition to pivoting the shift lever 80 from the initial position to the first shift position in the direction D1 as described above, the shift lever may also be rotated 80 pivots from the initial position in the direction D2 to the second backgear position. In detail, please refer to FIG. 13, which is a schematic cross-sectional view of the shift lever of FIG. 10 pivoting to the second shift position along the second direction.

As shown in FIG. 13, during the process of the reverse shift lever 80 pivoting from the initial position to the second reverse position along the direction D2, the second abutment surface 83 of the reverse shift lever 80 will push against the pusher 70 The second abutting portion 73 makes the first abutting portion 73 push against the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stop pawl 200, and pivot the positioning pawl 60 and the stop pawl The pawl 200 separates the engaging portion 61 of the positioning pawl 60 from the tooth groove 231 of the positioning ratchet 23, and the engaging portion 2001 of the stopping pawl 200 then meshes with the tooth groove 221 of the traction ratchet 22, so the positioning ratchet 23 and the cable The wheel 21 and the traction ratchet 22 rotate together for a first stroke in the direction D1 under the action of the first elastic biasing member 40 and are then stopped by the stopping pawl 200. The operation of the positioning pawl 60, the stopping pawl 200, the pusher 70, the pulling wheel 21, the traction ratchet 22, and the positioning ratchet 23 after the backshift lever 80 at the second backshift position is released is the same as the foregoing description It's similar, so I won't repeat it.

According to the shift operating device of the above-mentioned embodiment, the first abutting portion and the second abutting portion of the pushed member are respectively connected to two opposite sides of the pivoting portion, and the first abutting portion abuts against the shift lever The first abutment surface and the positioning pawl, and the second abutment portion abuts against the second abutment surface of the back shift lever, so that the back shift lever from the initial position along the first direction or the second direction When pivoting, the first abutment surface of the back shift lever pushes against the first abutment part, or the second abutment surface of the back shift lever pushes against the second abutment part, so that the first abutment part drives the positioning The pawl is separated from the take-up assembly, so that the take-up assembly rotates in a relaxed direction under the action of the first elastic biasing member, so as to back-shift the transmission. Therefore, the rider can choose the more accustomed direction among the two different directions to operate the shift lever, thus improving the smoothness of operating the shift lever.

Although the present invention is disclosed in the foregoing embodiments as above, it is not intended to limit the present invention. Anyone familiar with similar art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of patent protection for inventions shall be determined by the scope of patent applications attached to this specification.

1: Variable speed operating device

10: Frame

11: bottom plate

111: Lean against the convex part

12: Top plate

121: Lean against the convex part

20: take-up assembly

21: Puller

211: Piercing

22: Traction ratchet

221: cogging

222: Teeth

23: positioning ratchet

231: cogging

232: Teeth

30: Gear shift lever

31: Pivot

311: Perforation

312: Ring bump

32: pawl seat

321: Combined column

33: Joystick

40: The first elastic biasing member

50: Inward gear pawl

51: meshing part

52: Contact

60: Positioning pawl

61: Meshing part

62: Promoted Department

63: Lean against the column

70: Pushed item

71: Pivot

72: The first abutment part

73: The second abutment part

80: Shift lever

81: Piercing

82: The first abutment surface

83: second abutment surface

84: Long slot

91: lower cover

911: assembly hole

92: upper cover

100: Bolt

110: sleeve

120: pivot assembly

1201, 1202: bearing

1203: Bearing spacer ring

1204: bearing gasket

1205: shift lever pivot

1206: Pivot Bolt

130: second elastic biasing member

140: stop ring

150: second elastic biasing member

160: pivot

170: Ring

180: cover

1801: against the convex part

190: Bolt

200: stop pawl

2001: meshing part

2002: Promoted Department

210: Spacer ring

220, 230: second elastic biasing member

240: pivot

250: Bolt

260: second elastic biasing member

270: Pivot

280: Bolt

290: limit piece

Claims (11)

A variable speed operating device is used to install on a handlebar and pull a bicycle cable, including: A frame A take-up assembly rotatably arranged on the frame, the take-up assembly is used for winding the bicycle cable; A first elastic biasing member disposed on the winding assembly, and the first elastic biasing member is used to apply a force for the winding assembly to rotate in a relaxation direction; A shift lever is pivoted on the frame, An advance pawl is pivoted on the advance shift lever, wherein when the shift shift lever is actuated, the shift shift lever drives the winding assembly through the shift pawl to a direction opposite to the relaxation direction Rotate in a tightening direction; A positioning pawl, pivoted on the frame, the positioning pawl is detachably engaged with the winding assembly, wherein the movement of the shifting pawl and the positioning pawl are independent; A pushed member includes a pivot portion, a first abutment portion, and a second abutment portion, the pivot portion is pivoted on the frame, the first abutment portion and the second abutment portion are respectively Connected to two opposite sides of the pivotal portion, the first abutting portion abuts against the positioning pawl; A back gear lever pivoted on the frame, the back gear lever has a first abutment surface and a second abutment surface, the first abutment surface and the second abutment surface face different , And the first abutment surface and the second abutment surface respectively abut the first abutment portion and the second abutment portion; Wherein, the back shift lever can pivot in a first direction or a second direction opposite from an initial position; when the back shift lever pivots in the first direction from the initial position, the back shift shift The first abutment surface of the lever pushes against the first abutment portion, so that the first abutment portion drives the positioning pawl to separate from the winding assembly; When pivoting in two directions, the second abutting surface of the backshift lever pushes against the second abutting portion, so that the first abutting portion drives the positioning pawl to separate from the winding assembly. The gear shift operating device described in item 1 of the scope of patent application, wherein when the shift lever is not actuated, the shift pawl is separated from the winding assembly, and when the shift lever is actuated , The shift lever drives the shift pawl to engage with the winding assembly. The gear shift operating device described in item 2 of the scope of patent application, wherein the frame body has an abutting convex portion, and when the shift lever is not actuated, the shifting pawl abuts against the abutting convex portion , So that the shifting pawl is separated from the winding assembly. When the shifting lever is actuated, the shifting pawl is separated from the abutting protrusion. As described in item 3 of the scope of patent application, the gear shifting device further includes a second elastic biasing member, the second elastic biasing member is disposed on the shift pawl, and the second elastic biasing member is used to apply A force applied to the shifting pawl toward the direction in which the winding assembly pivots. For example, the gear shift operating device described in item 1 of the scope of the patent application further includes a limiting member. Frame body. For the variable speed operating device described in item 1 of the scope of patent application, wherein the frame body includes a bottom plate and a top plate, the bottom plate and the top plate are kept at a distance, the winding assembly, the positioning pawl, and the push member The pivotal portion is located between the bottom plate and the top plate, the first abutment portion and the second abutment portion of the pushed member protrude from the top plate, and the backshift lever is pivoted on the top plate and is located at the top plate. The top plate is away from one side of the bottom plate. As described in the first item of the scope of patent application, the speed change operation device further includes a stop pawl, the stop pawl pivots the frame body, the first abutting portion abuts the stop pawl, when the stop pawl When the back shift lever pivots in the first direction or the second direction from the initial position, the first abutting portion drives the stopping pawl to engage with the winding assembly. Such as the gear shift operating device described in item 7 of the scope of patent application, wherein the shift lever can pivot from the initial position in the first direction to a first shift position, or pivot in the second direction to a The second back-gear position; when the back-gear lever is pivoted from the initial position to the first back-gear position or the second back-gear position, after the winding assembly rotates in the relaxation direction for a first stroke Is stopped by the stopping pawl; when the back gear lever is pivoted from the first back gear position or the second back gear position to the initial position, the winding assembly rotates in the relaxed direction After a second stroke, it is stopped by the positioning pawl. The variable speed operating device described in item 8 of the scope of patent application, wherein the winding assembly has a plurality of tooth grooves, and the two adjacent groove bottoms of the two tooth grooves and the rotation axis of the winding assembly are connected to each other. The included angle, the sum of the first stroke and the second stroke is equal to the angle of the included angle. As described in item 8 of the scope of patent application, the gear shifting device further includes a second elastic biasing member, the second elastic biasing member is disposed on the stopping pawl, and the second elastic biasing member is used to apply The stopping pawl pivots in a direction away from the winding assembly with a force. As described in item 8 of the scope of patent application, the gear shifting device further includes a second elastic biasing member, the second elastic biasing member is disposed on the positioning pawl, and the second elastic biasing member is used to apply the A force for the positioning pawl to pivot in the direction of the winding assembly.

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