TW202144233A - 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

Gear shift operating device

The present invention relates to an operating device, in particular to a shifting operating device.

In recent years, the popularity of sports has gradually become popular, especially cycling, which has become one of the mainstream leisure activities of the public. In order to increase the operability of riding, a general bicycle is often equipped with multiple chainrings, derailleurs and an operation device for controlling the derailleur. The rider can operate the operation device according to the terrain or other needs to switch the chain to different gears through the derailleur. to obtain the desired riding effect.

The aforementioned operating device is usually configured with a shift lever to allow the rider to perform shifting actions for the transmission respectively. However, in the current common operating device, the shift lever can only be operated in a single direction, but such an operation direction does not necessarily conform to the habit of the rider, so that 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, so as to solve the problem of the prior art that the shift lever can only be operated in a single direction.

An embodiment of the present invention discloses a shifting operation device, which is installed on a handlebar and pulls a bicycle cable, comprising a frame body, a winding assembly, a first elastic biasing member, and a gear shifter A lever, a forward gear pawl, a positioning pawl, a pushed member and a reverse gear lever. The take-up assembly is rotatably arranged on the frame body, and the take-up assembly is used for winding the bicycle cable. The first elastic biasing member is disposed on the coiling assembly, and the first elastic biasing member is used for applying a force to rotate the coiling assembly in a loosening direction. The gear shift lever is pivoted on the frame body. The shift pawl is pivoted on the shift lever. When the gear shift lever is actuated, the gear shift lever drives the winding assembly to rotate in a tensioning direction opposite to the loosening direction through the gear shifting 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 advance pawl is independent of the movement of the positioning pawl. The pushed member includes a pivot portion, a first abutting portion and a second abutting portion. The pivoting portion is pivoted on the frame body, the first abutting portion and the second abutting portion are respectively connected to two opposite sides of the pivoting portion, and the first abutting portion abuts against the positioning pawl. The back gear lever is pivoted on the frame body, and the back gear lever has a first abutting surface and a second abutting surface. The first abutting surface and the second abutting surface face in different directions respectively, and the first abutting surface and the second abutting surface abut the first abutting portion and the second abutting portion respectively. The reverse shift lever can pivot in an opposite first direction or a second direction from an initial position. When the backshift lever pivots from the initial position in the first direction, the first abutting surface of the backshift lever pushes against the first abutting portion, so that the first abutting portion drives the positioning pawl to separate from the winding assembly . When the backshift lever pivots from the initial position in the second direction, 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 . .

According to the speed change 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 reverse gear lever. The setting of the first abutting surface and the positioning pawl, and the second abutting portion abuts against the second abutting surface of the reversing lever, so that the reversing lever moves along the first direction or the second direction from the initial position When pivoting, the first abutting surface of the backshift lever pushes against the first abutting portion, or the second abutting surface of the backshift lever pushes against the second abutting portion, so that the first abutting portion drives the positioning The pawl is separated from the take-up assembly, so that the take-up assembly rotates in the loosening direction under the action of the first elastic biasing member, so as to reverse the transmission. Therefore, the rider can choose the direction he is more accustomed to to operate the reverse gear lever from two different directions, thus improving the smoothness of operating the reverse gear lever.

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 provide further explanation of the scope of the patent application of the present invention.

See Figures 1 to 5. FIG. 1 is a schematic perspective view of a shift operating device according to a first embodiment of the present invention. FIG. 2 is an exploded schematic view of FIG. 1 . 3 to 5 are exploded schematic views of different parts of the components of FIG. 2 .

In this embodiment, the shifting operation device 1 is used to be mounted on a handlebar (not shown) and pull a bicycle cable (not shown). The shift operating device 1 includes a frame body 10 , a take-up assembly 20 , a forward gear lever 30 , a first elastic biasing member 40 , a forward gear pawl 50 , a positioning pawl 60 , and a push member 70 and a shift lever 80. In addition, in this embodiment or other embodiments, the speed change operating device 1 may further include a casing 90 .

Next, please refer to FIG. 6 to FIG. 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 perspective view of the shift operating device of FIG. 1 from another perspective with the upper cover removed. FIG. 8 is a schematic cross-sectional view of the shift operating device of FIG. 1 .

The casing 90 includes a lower cover 91 and an upper cover 92 . The lower cover 91 and the upper cover 92 can be locked with each other through a plurality of bolts 100 to enclose an inner space S together. The lower cover 91 has an assembly hole 911 , and the assembly hole 911 communicates with the inner space S of the housing 90 .

The frame body 10 and the winding assembly 20 are located in the inner space S of the casing 90 . The frame body 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 keep a distance. The coiling assembly 20 is located between the bottom plate 11 and the top plate 12 , and the coiling assembly 20 includes a wire pulling wheel 21 , a traction ratchet 22 and a positioning ratchet 23 . The traction ratchet 22 and the positioning ratchet 23 are respectively fixed on opposite ends of the pulley 21 , and the traction ratchet 22 is closer to the bottom plate 11 than the positioning ratchet 23 . In this embodiment, the wire pulley 21 has a through hole 211 , and the speed change operating device 1 further includes a sleeve 110 . The sleeve 110 is disposed in the through hole 211 of the wire pulling wheel 21 .

The gear shift lever 30 includes a pivot portion 31 , a pawl seat 32 and an operating lever 33 . The pawl seat 32 and the operating rod 33 both protrude from the radial direction of the pivoting portion 31 . The pivot portion 31 of the gear shift lever 30 passes through the assembly hole 911 of the lower cover 91 , and the pawl seat 32 and the operating lever 33 are respectively located inside and outside the inner space S of the housing 90 , and the The pivot portion 31 is located on a side of the bottom plate 11 away from the take-up assembly 20 .

In this embodiment, the pivot portion 31 of the gear 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 and 1202 , a bearing spacer ring 1203 , a bearing washer 1204 , a gear lever pivot 1205 and a pivot bolt 1206 . The two bearings 1201 and 1202 are located in the through holes 311 of the pivot 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 spacer 1204 is located on the side of the bearing 1202 facing away from the bearing 1201 . The gear lever pivot shaft 1205 passes through the bearing 1201, the bearing spacer ring 1203, the bearing 1202 and the bearing washer 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 wire pulley 21 , the traction ratchet 22 and the positioning ratchet 23 can rotate together relative to the bottom plate 11 and the top plate 12 of the frame body 10 through the sleeve 110 , and the shift lever 30 passes through the shift lever pivot 1205 It can pivot relative to the bottom plate 11 of the frame body 10 .

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

In this embodiment, the pulley 21 is used for fixing one end of a bicycle cable (not shown), and the other end of the bicycle cable is used for connecting to a derailleur (not shown) of a bicycle, such as a rear derailleur. When the whole coiling assembly 20 is rotated in a loosening direction D1, the bicycle cable can be loosened to make the derailleur back; further, after the positioning ratchet 23 is rotated by an angle θ in the loosening direction D1, the derailleur can be backed by a gear . On the contrary, when the integral reeling assembly 20 is rotated in a tensioning direction D2 opposite to the loosening direction D1, the bicycle cable can be tensioned to make the gear shift; further, the positioning ratchet 23 is rotated in the tensioning direction D2 After an angle of included angle θ, the transmission can be moved into a 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 opposite ends of the first elastic biasing member 40 are respectively fixed to the bottom plate 11 and the pulley 21 . The first elastic biasing member 40 is used for applying a force to rotate the whole winding assembly 20 in the loosening 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 pivot portion 31 of the shift lever 30 , and opposite ends of the second elastic biasing member 130 are respectively fixed to the bottom plate 11 and the pivot portion 31 . The second elastic biasing member 130 is used for imparting a force for pivoting the integral gear shift lever 30 in a direction similar to the releasing direction D1 (clockwise from the perspective of FIG. 8 ).

In this embodiment, the pawl seat 32 of the gear shift lever 30 has a coupling column portion 321 . The advancing pawl 50 is pivoted on the coupling column portion 321 of the pawl base 32 , and the advancing pawl 50 is blocked by a stop ring 140 installed on the coupling column portion 321 and cannot be separated from the coupling column portion 321 . The bottom plate 11 has an abutting convex portion 111 extending toward the top plate 12 , and the gear pawl 50 has an engaging portion 51 and a contact portion 52 . The engaging portion 51 and the contact portion 52 of the advancing pawl 50 are located on opposite sides of the pivot axis P2 of the advancing pawl 50 , and the engaging portion 51 and the contacting portion 52 correspond to the abutting protrusions of the traction ratchet 22 and the bottom plate 11 respectively. Section 111. As shown in FIG. 8 , when the gear lever 30 is not actuated, the contact portion 52 of the gear pawl 50 is normally abutted against the abutting convex portion 111 of the bottom plate 11 , so that the 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 base 32 , one end of the second elastic biasing member 150 is fixed to the pawl base 32 , and the other end of the second elastic biasing member 150 is pressed against on the engaging portion 51 of the forward gear pawl 50 . The second elastic biasing member 150 is used for applying the force of the engaging portion 51 of the forward gear pawl 50 to pivot in the direction of the pulling ratchet 22 .

In this embodiment, the speed change operating device 1 further includes a pivot shaft 160 , a collar 170 , a cover plate 180 , a bolt 190 , a stopper 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 the side of the top plate 12 away from the bottom plate 11 , and the cover plate 180 is stacked on the side of the collar 170 away from the top plate 12 . The bolts 190 pass through the cover plate 180 , the collar 170 , and the top plate 12 and are locked to the pivot shaft 160 . The positioning pawl 60 , the retaining pawl 200 and the spacer ring 210 are sleeved on the pivot shaft 160 , and the spacer ring 210 is located between the retaining pawl 200 and the positioning pawl 60 , and the retaining pawl 200 is closer to the spacer ring 210 Bottom plate 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 convex portion 1801 protruding toward the top plate 12 , and the top plate 12 has an abutting convex portion 121 protruding toward the bottom plate 11 . In addition, the positioning pawl 60 has an engaging portion 61 , a pushed portion 62 and an abutting 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 extend toward two different directions respectively, and the engaging portion 2001 and the pushed portion 2002 of the stopping pawl 200 are respectively located at the pivot axis P3 of the stopping pawl 200 . opposite sides.

The second elastic biasing member 220 is sleeved on the collar 170 , 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 abutting protrusion 1801 of the cover plate 180 The positioning pawl 60 abuts against the column portion 63 . The second elastic biasing member 220 is used for applying a force for pivoting the engaging portion 61 of the positioning ratchet 60 in the direction of the positioning ratchet 23 . When the positioning ratchet 60 is not subjected to other external forces, the engaging portion 61 of the positioning ratchet 60 is normally engaged with the tooth slot 231 of the positioning ratchet 23 .

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

In this embodiment, the shift operating device 1 further includes a pivot shaft 240 and a bolt 250 . The pivot shaft 240 is inserted into the bottom plate 11 , and one end of the pivot shaft 240 away from the bottom plate 11 abuts against the top plate 12 . The bolts 250 pass through the top plate 12 and are locked to the pivot shaft 240 . The pushed member 70 includes a pivot 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 . The pivot portion 71 of the push member 70 is sleeved on the pivot shaft 240 and can pivot relative to the bottom plate 11 and the top plate 12 through the pivot shaft 240 . The first abutting portion 72 of the pushing member 70 is partially located between the engaging portion 61 and the pushing portion 62 of the positioning pawl 60 and abuts against the pushing portion 62 of the positioning pawl 60 , and the first abutting portion 70 of the pushing member 70 is The abutting portion 72 and the second abutting portion 73 protrude from the top plate 12 .

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

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

In addition, the gear shift lever 80 also has an elongated through slot 84 , and the shift operating device 1 further includes a limiting member 290 . The limiting member 290 is inserted through the elongated through groove 84 of the shift lever 80 and fixed to the top plate 12 . Through the combination of the elongated through-grooves 84 and the limiting members 290 , the pivoting strokes of the reverse shift lever 80 in a first direction and a second direction opposite to each other can be limited. The first direction is similar to the direction D1 (the clockwise direction from the perspective of FIG. 8 ), and the second direction is similar to the direction D2 (the counterclockwise direction from the perspective of FIG. 8 ), so in order to simplify the number of direction arrows and labels in the drawing , the first direction and the direction D1 use the same arrows and signs, and the second direction and the direction D2 use the same arrows and signs.

Next, the situation when the gear shift operating device 1 is in the gear shift operation will be described first. Please refer to FIGS. 8 to 10 . FIG. 9 is a schematic cross-sectional view of the shift lever in FIG. 8 when the shift lever is actuated, and FIG. 10 is the shift shift in FIG. 9 Schematic cross-sectional view of the lever returning to its original position. It should be noted that, in order to make the shifting operation of the shift operating device 1 easier to understand, some elements are omitted or cut off in FIGS. In addition, in the explanatory diagram of the shifting operation, various arrows are supplemented to indicate the actuation 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 sign. For example, the gear shift lever 30 can be moved in the direction D2 to drive the traction ratchet 22 to rotate in the direction D2.

As shown in FIG. 8 and FIG. 9 , when the user wants to shift, the shift lever 30 can be pivoted in the direction D2. Once the gear lever 30 is pivotally actuated, the contact portion 52 of the gear pawl 50 is separated from the abutting protrusion 111 of the bottom plate 11 , and the second elastic biasing member 150 forces the engagement of the gear pawl 50 at this time. The portion 51 is pivoted toward the traction ratchet 22 so that the engaging portion 51 of the forward gear pawl 50 is engaged with the tooth slot 221 of the traction ratchet 22 . Next, in the state where the engaging portion 51 of the forward gear pawl 50 is engaged with the tooth slot 221 of the traction ratchet 22, it continues to pivot in the direction D2. Therefore, the engaging portion 51 of the advancing pawl 50 will drive the traction ratchet 22, so that the traction ratchet 22, the wire pulley 21 and the positioning ratchet 23 rotate together in the direction D2. In this way, the rotation of the cable pulley 21 will pull the bicycle cable (not shown), so that the derailleur is geared, and the bicycle chain is switched to different chainrings.

It is worth noting that, as can be seen with reference to the aforementioned FIGS. 8 and 9 , during the pivoting process of the traction ratchet 22 in the direction D2, the engaging portion 2001 of the stopping pawl 200 is subjected to the second elastic biasing member 230 (as shown in FIG. 7 ). (shown) is maintained and separated from the traction ratchet 22, so the engaging portion 2001 will not engage and block the rotation of the traction ratchet 22; on the other hand, during the pivoting process of the positioning ratchet 23 in the direction D2, the positioning ratchet 23 The wall of the tooth slot 231 will push the engaging portion 61 of the positioning pawl 60 away, so the positioning pawl 60 will not prevent the positioning ratchet 23 from rotating. In addition, in the process from FIG. 8 to FIG. 9 , whenever the engaging portion 61 of the positioning ratchet 60 passes over the tooth portion 232 of the positioning ratchet 23 but is rebounded by the force of the second elastic biasing member 220 , the engaging portion 61 is engaged. The portion 61 will engage with the other tooth slot 231 and collide with the positioning ratchet 23 . These impacts will generate sound feedback, and the user can use the sound feedback to determine whether the gear shift is successful, or to determine the number of gears switched by the toggle.

In addition, it can be understood that the larger the rotation angle of the cable pulley 21 is, the faster the gear shift can be achieved by passing the bicycle chain over multiple chainrings at one time. For example, from the perspective of the shifting operation in FIGS. 8 to 9 , the shifting amount of the shifting lever 30 in the direction D2 causes the engaging portion 61 of the positioning pawl 60 to pass over the second tooth portion 232 of the positioning ratchet 23 and locate in another tooth slot 231; that is to say, the rotation angle of the positioning ratchet 23 is the angle of two included angles θ, so the gear of the transmission advances two gears, but in fact, the single maximum shift of the gear shift lever 30 in this embodiment in the direction of The momentum can be 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 shift lever is moved or the maximum number of gears that can be reached by a single maximum shift amount is the maximum number of shifts that can be shifted in the second direction by changing the shift lever Momentum, or changing the ratio between pawl and ratchet.

As shown in FIG. 10 , when switching to a desired gear (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 together in the direction D1 to return to the original position. It is worth noting that during this process, the positioning ratchet 23 will be affected by the force of the first elastic biasing member 40 and also tends to pivot in the direction D1, but because the pushed portion 62 of the positioning ratchet 60 is affected by the pushed member The stop of the first abutting portion 72 of the 70 prevents the tooth portion 232 of the positioning ratchet 23 from pushing away the engaging portion 61 of the positioning ratchet 60, so that the positioning ratchet 23 cannot rotate in the direction D1 and is stopped at the last sound. When 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 . But for the gear pawl 50, the engaging portion 51 of the engaging portion 51 is not in contact with the wall surface of the tooth slot 221 (shown in FIG. 9) of the traction ratchet 22 in the direction D1, so the engaging portion 51 can follow the gear lever. 30 is released to pass over the teeth 222 of the traction ratchet 22 in sequence (as shown in FIG. 9 ), until the contact portion 52 abuts against the abutment convex portion 111 of the bottom plate 11 , so that the engaging portion 51 of the advance pawl 50 is separated from the The ratchet 22 is pulled, and the shift lever 30 is stopped at the initial position. At this point, the gear-in operation is completed.

Next, the situation when the gear shifting operation device 1 is reversed will be described. Please refer to FIGS. 11 to 12 . FIG. 11 is a schematic cross-sectional view of the reverse gear lever of FIG. 10 pivoted along the first direction to the first reverse gear position. FIG. 12 is a schematic cross-sectional view of the backshift lever of FIG. 11 returning to the initial position. Similarly, in order to make the shifting operation of the shift operating device 1 better understandable, some elements are omitted or cut off in FIGS. In addition, in the explanatory diagrams of the shifting operation, various arrows are supplemented to indicate the actuation direction of the element or the elements. 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 FIG. 11 and FIG. 12 , when the user wants to reverse the gear, the user 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 is pivoted from the initial position to the first shift-back position, the force is cancelled and the shift-back lever 80 is automatically reset from the first shift-back position to the initial position.

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

Next, 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 subjected to the first resistance of the pushed member 70 Due to the push of the leaning portion 72, the force of the second elastic biasing members 220, 230 (as shown in FIG. 7) makes the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stop pawl 200 pass through The first abutting portion 72 of the push member 70 drives the shift lever 80 to pivot from the first shift back position to the initial position. And, under the force of the second elastic biasing members 220 and 230 (as shown in FIG. 7 ), the engaging portion 2001 of the stopping pawl 200 is disengaged from the tooth slot 221 of the traction ratchet 22, and the positioning pawl 60 is respectively caused The engaging portion 61 is engaged with the other tooth slot 231 of the positioning ratchet 23, and under the action of the first elastic biasing member 40, the positioning ratchet 23, the wire pulley 21 and the traction ratchet 22 rotate together in the direction D1 for a second rotation. Immediately after the stroke, it is stopped by the positioning pawl 60 . At this point, the operation of backing off is completed. Wherein, after the positioning ratchet 23 rotates the first stroke and the second stroke, it rotates an angle of an included angle θ. 11 and FIG. 12 , the engaging portion 61 of the positioning pawl 60 is changed from the originally engaged tooth slot 231 to another adjacent tooth slot 231 in the direction D2. It can be seen from this that a single actuation of the reverse lever 80 can only reverse the transmission by one gear.

In the present embodiment, regarding the shifting operation of the shift operating device 1, in addition to pivoting the shifting lever 80 from the initial position to the first shifting position along the direction D1 through the above-mentioned method, the shifting shifting lever can also be rotated 80 pivots in direction D2 from the initial position to the second reverse position. In detail, please refer to FIG. 13 . FIG. 13 is a schematic cross-sectional view of the reverse gear lever of FIG. 10 pivoted to the second reverse position along the second direction.

As shown in FIG. 13 , during the process of pivoting the reverse gear lever 80 from the initial position to the second reverse gear position along the direction D2 , the second abutting surface 83 of the reverse gear lever 80 will push against the surface of the pushed member 70 . The second abutting portion 73 pushes the first abutting portion 73 against the pushed portion 62 of the positioning pawl 60 and the pushed portion 2002 of the stop pawl 200 , and pivots the positioning pawl 60 and the stop pawl 200 pawl 200, so that the engaging portion 61 of the positioning pawl 60 is separated from the tooth slot 231 of the positioning ratchet 23, and the engaging portion 2001 of the stopping pawl 200 is then engaged with the tooth slot 221 of the traction ratchet 22, so the positioning ratchet 23, the pull wire The wheel 21 and the traction ratchet 22 rotate together for the 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 actions of the positioning pawl 60 , the stopping pawl 200 , the pushed member 70 , the wire pulley 21 , the traction ratchet 22 and the positioning ratchet 23 are described above after the shift lever 80 at the second shift back position is released. similar, so it is not repeated here.

According to the speed change 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 reverse gear lever. The setting of the first abutting surface and the positioning pawl, and the second abutting portion abuts against the second abutting surface of the reversing lever, so that the reversing lever moves along the first direction or the second direction from the initial position When pivoting, the first abutting surface of the backshift lever pushes against the first abutting portion, or the second abutting surface of the backshift lever pushes against the second abutting portion, so that the first abutting portion drives the positioning The pawl is separated from the take-up assembly, so that the take-up assembly rotates in the loosening direction under the action of the first elastic biasing member, so as to reverse the transmission. Therefore, the rider can choose the direction he is more accustomed to to operate the reverse gear lever from two different directions, thus improving the smoothness of operating the reverse gear lever.

Although the present invention is disclosed above by the aforementioned embodiments, it is not intended to limit the present invention. Anyone who is familiar with similar techniques can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of patent protection of the invention shall be determined by the scope of the patent application attached to this specification.

1: Variable speed operating device 10: Frame 11: Bottom plate 111: Against the convex part 12: Top plate 121: Against the convex part 20: Coil assembly 21: pulley 211: Perforation 22: Traction ratchet 221: Cogging 222: Teeth 23: Positioning ratchet 231: Cogging 232: Teeth 30: Gear shift lever 31: Pivot part 311: Perforation 312: annular protrusion 32: Pawl seat 321: Combined column 33: Operation lever 40: The first elastic biasing member 50: Gear Pawl 51: Engagement part 52: Contact part 60: Positioning pawl 61: Engagement part 62: Pushed Department 63: Against the column 70: Pushed pieces 71: Pivot part 72: The first contact part 73: Second contact part 80: Backshift lever 81: Perforation 82: The first contact surface 83: Second contact surface 84: Long slotted 90: Shell 91: lower cover 911: Assembly hole 92: upper cover S: interior space 100: Bolts 110: Sleeve 120:Pivot components 1201, 1202: Bearings 1203: Bearing spacer ring 1204: Bearing spacer 1205: Shift lever pivot 1206: Pivot Bolt 130: Second elastic biasing member 140: Stop ring 150: Second elastic biasing member 160: Pivot 170: Collar 180: Cover 1801: Abutting the boss 190: Bolts 200: Stop Pawl 2001: Meshing 2002: Pushed Division 210: Spacer Ring 220, 230: the second elastic biasing member 240: Pivot 250: Bolt 260: Second elastic biasing member 270: Pivot 280: Bolt 290: Limiter P1, P2, P3: axis L1, L2: connection θ: included angle D1, D2: direction

FIG. 1 is a schematic perspective view of a shift operating device according to a first embodiment of the present invention. FIG. 2 is an exploded schematic view of FIG. 1 . 3 to 5 are exploded schematic views of different parts of the components of FIG. 2 . FIG. 6 is a perspective view of the speed change operating device of FIG. 1 with the upper cover removed. FIG. 7 is a perspective view of the shift operating device of FIG. 1 from another perspective with the upper cover removed. 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 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 pivoted along a first direction to a first shift position. FIG. 12 is a schematic cross-sectional view of the backshift lever of FIG. 11 returning to the initial position. 13 is a schematic cross-sectional view of the shift lever of FIG. 10 pivoted along a second direction to a second shift back position.

1: Variable speed operating device

10: Frame

11: Bottom plate

111: Against the convex part

12: Top plate

121: Against the convex part

20: Coil assembly

21: pulley

211: Perforation

22: Traction ratchet

221: Cogging

222: Teeth

23: Positioning ratchet

231: Cogging

232: Teeth

30: Gear shift lever

31: Pivot part

311: Perforation

312: annular protrusion

32: Pawl seat

321: Combined column

33: Operation lever

40: The first elastic biasing member

50: Gear Pawl

51: Engagement part

52: Contact part

60: Positioning pawl

61: Engagement part

62: Pushed Department

63: Against the column

70: Pushed pieces

71: Pivot part

72: The first contact part

73: Second contact part

80: Backshift lever

81: Perforation

82: The first contact surface

83: Second contact surface

84: Long slotted

91: lower cover

911: Assembly hole

92: upper cover

100: Bolts

110: Sleeve

120:Pivot components

1201, 1202: Bearings

1203: Bearing spacer ring

1204: Bearing spacer

1205: Shift lever pivot

1206: Pivot Bolt

130: Second elastic biasing member

140: Stop ring

150: Second elastic biasing member

160: Pivot

170: Collar

180: Cover

1801: Abutting the boss

190: Bolts

200: Stop Pawl

2001: Meshing

2002: Pushed Division

210: Spacer Ring

220, 230: the second elastic biasing member

240: Pivot

250: Bolt

260: Second elastic biasing member

270: Pivot

280: Bolt

290: Limiter

Claims (11)

A shift operating device for mounting on a handlebar and pulling a bicycle cable, comprising: a body; a coiling assembly, rotatably disposed on the frame body, the coiling assembly is used for winding the bicycle cable; a first elastic biasing member disposed on the reeling assembly, the first elastic biasing member is used for applying a force to rotate the reeling assembly in a loosening direction; A gear shift lever is pivoted on the frame body, A forward gear pawl is pivoted on the forward gear lever, wherein when the forward gear lever is actuated, the forward gear lever drives the winding assembly to a direction opposite to the loosening direction through the forward gear pawl. Rotate in a tightening direction; a positioning pawl pivoted on the frame body, the positioning pawl is detachably engaged with the winding assembly, wherein the movement of the advancing pawl and the positioning pawl is independent; A pushed member includes a pivoting portion, a first abutting portion and a second abutting portion, the pivoting portion is pivoted on the frame body, the first abutting portion and the second abutting portion are respectively connected to two opposite sides of the pivoting portion, the first abutting portion abuts the positioning pawl; A gear shift lever is pivoted on the frame body, the gear shift lever has a first abutting surface and a second abutting surface, the first abutting surface and the second abutting surface respectively face different direction, and the first abutting surface and the second abutting surface respectively abut the first abutting portion and the second abutting portion; Wherein, the back gear lever can be pivoted from an initial position in an opposite first direction or a second direction; when the back gear lever is pivoted from the initial position along the first direction, the back gear switch The first abutting surface of the rod pushes against the first abutting portion, so that the first abutting 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 shift operating device of claim 1, wherein when the gear lever is not actuated, the gear pawl is separated from the take-up assembly, and when the gear lever is actuated , the gear shift lever drives the gear pawl to engage with the take-up assembly. The speed change operating device as described in claim 2, wherein the frame body has an abutting protrusion, and when the forward gear lever is not actuated, the forward gear pawl abuts against the abutting protrusion , so that the advance pawl is separated from the winding assembly. When the advance lever is actuated, the advance pawl is separated from the abutting convex portion. The speed change operating device as described in claim 3, further comprising a second elastic biasing member, the second elastic biasing member is disposed on the forward gear pawl, and the second elastic biasing member is used for applying A force of the advance pawl in the direction in which the take-up assembly pivots. The shift operating device as described in claim 1 of the scope of the application further comprises a limiter, the shift lever has an elongated through slot, the limiter is inserted through the elongated slot and fixed to the frame. The speed change operating device as described in claim 1, wherein the frame body comprises a bottom plate and a top plate, the bottom plate and the top plate keep a distance, the winding assembly, the positioning pawl and the The pivoting portion is located between the bottom plate and the top plate, the first abutting portion and the second abutting portion of the pushed member protrude out of the top plate, and the shift lever is pivoted on the top plate and located at the top plate. A side of the top plate remote from the bottom plate. The speed change operating device as described in claim 1 further comprises a stop pawl, the stop pawl pivots the frame body, the first abutting portion abuts against the stop pawl, when the stop pawl is When the shift lever pivots from the initial position along the first direction or the second direction, the first abutting portion drives the locking pawl to engage with the winding assembly. The shift operating device as described in claim 7, wherein the reverse shift lever can be pivoted from the initial position to a first reverse position along the first direction, or pivoted along the second direction to a first reverse position The second gear-back position; when the gear-back lever is pivoted from the initial position to the first gear-back position or the second gear-back position, after the take-up assembly rotates along the releasing direction for a first stroke is stopped by the stopping pawl; when the reverse shift lever is pivoted from the first reverse position or the second reverse position to the initial position, the winding assembly rotates along the loosening direction After a second stroke, it is stopped by the positioning pawl. The speed change operating device as described in claim 8, wherein the reeling assembly has a plurality of tooth slots, and the bottom of each adjacent two tooth slots is connected with two connecting lines of the rotation axis of the reeling assembly. For the included angle, the sum of the first stroke and the second stroke is equal to the angle of the included angle. The speed change operating device as described in claim 8, further comprising a second elastic biasing member, the second elastic biasing member is disposed on the stop pawl, and the second elastic biasing member is used for applying A force for pivoting the stop pawl away from the take-up assembly. The speed change operating device as described in claim 8, further comprising a second elastic biasing member, the second elastic biasing member is disposed on the positioning pawl, and the second elastic biasing member is used for applying the second elastic biasing member to the positioning pawl. A force for positioning the pawl pivoting in the direction of the take-up assembly.

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