Paddle shifters

Abstract

This utility model discloses a shifter, including a mounting base. Along the axial direction of a support shaft, the mounting base is arranged from bottom to top as follows: a winding spool and a lever, the lever being actuable to rotate around the support shaft to wind the shift cable onto the winding spool; an elastic element, the lower end of which abuts against the winding spool and extends and retracts in the vertical direction; a floating disc, rotatably connected to the mounting base around the support shaft and rotating synchronously with the winding spool, the floating disc being able to rise and fall relative to the winding spool, the upper end of which is provided with a first end face gear; and a positioning disc, whose position is adjustable in the vertical direction and relatively fixed to the support shaft in the circumferential direction, the lower end of which is provided with a second end face gear, the first end face gear being positioned and engaged in a meshing tooth groove. This shifter uses fewer transmission parts, resulting in a simple and efficient transmission, allowing the rider to customize and adjust the shift feel and force to a comfortable level, facilitating quick tactile judgment of whether the shift operation has been successfully completed.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a finger shifter. Background Technology

[0002] Shifter shifters are widely used on multi-speed bicycles. They typically employ a locating pawl to constrain the locating ratchet on a locating gear. The shift pawl then moves the shift teeth on the shift gear, causing the shift gear, locating gear, and spool to rotate simultaneously. This, in turn, winds the shift cable around the derailleur, allowing the chain to shift between different sprockets. These shifter shifters often require more transmission components and have a more complex transmission mechanism. Furthermore, the shift lever returns to its initial position after a shift, making it difficult for the rider to quickly determine if a shift was successful. The rider needs to look down and check the gear indicator, which distracts their attention while riding. Additionally, the rider cannot adjust the shift feel or effort. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a shifter that is highly efficient in transmission, allows for quick and easy judgment of whether a shift has been successfully completed, and can be adjusted to a comfortable shifting feel and force.

[0004] A shifter gearbox according to an embodiment of the present invention includes a mounting base mounted on a handlebar. A support shaft is fixedly mounted on the mounting base, and the axial direction of the support shaft extends vertically. From bottom to top along the axial direction of the support shaft, the mounting base comprises: a winding reel and a lever. The winding reel is rotatably connected to the mounting base around the support shaft. The lever is mounted on the winding reel and can be actuated to rotate around the support shaft to wind the shift cable onto the winding reel. An elastic element, the lower end of which abuts against the winding reel and extends vertically. A floating disc, rotatably connected to the mounting base around the support shaft and rotating synchronously with the winding reel, the lower end of which is abutted by the upper end of the elastic element. The floating disc can rise and fall relative to the winding reel. A first end face gear is provided at the upper end of the floating disc. The end face gear has multiple meshing teeth radially distributed around the support shaft; the positioning disk is adjustable in the vertical direction and relatively fixed to the support shaft in the circumferential direction. A second end face gear is provided at the lower end of the positioning disk. The second end face gear has multiple meshing tooth grooves radially distributed around the support shaft; the first end face gear is positioned and engaged in the meshing tooth grooves through the meshing teeth. The elastic element always applies an upward elastic force to the floating disk to limit the downward movement of the floating disk relative to the winding disk. When the lever is actuated to rotate around the support shaft, the winding disk winds up or unwinds the shift line, and the first end face gear rotates and jumps relative to the second end face gear. When the lever is released from actuation, the first end face gear is again positioned and engaged in the meshing tooth grooves through the meshing teeth.

[0005] At least the following beneficial effects are achieved: This shifter directly mounts the lever on the winding spool. When the lever is actuated and rotates around the support shaft, it drives the winding spool and the floating disc to rotate synchronously, causing the winding spool to wind or unwind the shift cable. The first end face gear rotates and jumps relative to the second end face gear. At the same time, because the elastic element always applies an upward elastic force to the floating disc, the floating disc is first forced closer to the winding spool and then away from it. When the lever is released, the first end face gear is repositioned and engaged in the meshing tooth groove through the meshing teeth. Moreover, the elastic force of the elastic element can maintain the meshing state between the first end face gear and the second end face gear, achieving axial... The purpose of locking the floating disc upwards is to prevent the winding disc from rotating freely. It uses fewer transmission parts, enabling fast and accurate power transmission. The transmission is simple and efficient. By adjusting the vertical position of the positioning disc, the height difference between the floating disc and the winding disc, as well as the elastic force of the elastic element, can be changed. Ultimately, this achieves the goal of adjusting the minimum force required to shift the lever, allowing the rider to customize a comfortable shifting feel and force. After the lever has rotated a certain angle to complete the shifting operation, it does not need to return to the initial position. The rider's fingers can feel the rotation angle of the lever, allowing the rider to quickly judge whether the shifting operation has been successfully completed by touch.

[0006] According to some embodiments of the present invention, the slope of the biting teeth on one side in the gear-advancing rotation direction is smaller than the slope on one side in the gear-reversing rotation direction, the gear-advancing rotation direction is opposite to the gear-reversing rotation direction, and the slope of the biting tooth groove on one side in the gear-advancing rotation direction is smaller than the slope on one side in the gear-reversing rotation direction.

[0007] According to some embodiments of the present invention, a limit block is provided at the upper end of the floating disk, and a stop block is provided at the lower end of the positioning disk. The stop block is configured to stop the limit block to limit the rotation range of the floating disk relative to the positioning disk.

[0008] According to some embodiments of the present invention, the limiting block is located on the inner ring of the first end face gear, and the stop block is located on the inner ring of the second end face gear.

[0009] According to some embodiments of this utility model, it also includes an adjusting screw. The upper end of the support shaft is provided with an internal thread. The screw of the adjusting screw is threadedly connected to the internal thread. The head of the adjusting screw abuts against the upper end of the positioning plate. When the adjusting screw spirals up and down relative to the support shaft, the positioning plate squeezes or expands the height difference between the floating plate and the winding plate, and changes the deformation of the elastic element.

[0010] According to some embodiments of the present invention, a washer is provided between the head of the adjusting screw and the upper end of the positioning plate, and the screw rod of the adjusting screw passes through the washer and is threadedly connected to the internal thread.

[0011] According to some embodiments of the present invention, the outer peripheral surface of the support shaft is recessed inward and provided with an axial guide groove, and the inner peripheral surface of the positioning disk is correspondingly provided with an axial slider, which slides up and down to connect with the axial guide groove.

[0012] According to some embodiments of the present invention, the elastic element is a diaphragm spring, the diaphragm spring includes a connecting ring abutting against the floating disk and a plurality of elastic spring sheets arranged circumferentially on the inner wall of the connecting ring, the elastic spring sheets extending obliquely toward the winding disk and abutting against the winding disk.

[0013] According to some embodiments of the present invention, the winding reel is provided with a plurality of locking blocks along the circumference, and the floating disk is provided with a plurality of corresponding locking slots along the circumference. The locking blocks extend in the vertical direction and are embedded in the locking slots so that the winding reel can drive the floating disk to rotate synchronously, and the floating disk can slide up and down relative to the locking blocks.

[0014] According to some embodiments of the present invention, the lever is fastened to the winding reel, and the winding reel and the lever form a winding groove, which can be used to wind the shift cable.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0018] Figure 2 for Figure 1 Top view;

[0019] Figure 3 for Figure 2 AA section view;

[0020] Figure 4 for Figure 1 A breakdown diagram from one perspective;

[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 for Figure 1 A breakdown diagram from another perspective;

[0023] Figure 7 for Figure 6 A magnified view of a section at point C.

[0024] Reference numerals: Mounting base 1, Support shaft 11, Internal thread 111, Axial guide groove 112, Winding disc 2, Locking block 21, Lever 3, Shift line 4, Elastic element 5, Connecting ring 51, Elastic spring 52, Floating disc 6, First end face gear 61, Engaging tooth 611, Limiting block 62, Slot 63, Positioning disc 7, Second end face gear 71, Engaging tooth groove 711, Gear tooth 712, Stop block 72, Axial slider 73, Shim 8, Adjusting screw 9, Winding groove 10. Detailed Implementation

[0025] In the description of this utility model, it should be understood that the orientation descriptions, such as up, down, inside, outside, axial, circumferential, etc., are based on the orientation or positional relationship shown in the drawings and are only for the convenience of describing this utility model and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, the use of "first" and "second" is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features or the order of the technical features.

[0027] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0028] Reference Figures 1 to 7 This utility model discloses a shifter, including a mounting base 1 installed on the handlebars, a support shaft 11 fixedly installed on the mounting base 1, the axial direction of the support shaft 11 extending in the vertical direction, and the mounting base 1 arranged from bottom to top along the axial direction of the support shaft 11 with a lever 3, a winding disc 2, an elastic element 5, a floating disc 6 and a positioning disc 7.

[0029] Among them, reference Figure 3 The winding reel 2 is rotatably connected to the mounting base 1 around the support shaft 11, and the lever 3 is mounted on the winding reel 2. (See further details...) Figure 1 and Figure 2 The lever 3 can be actuated to rotate around the support shaft 11 so that the winding reel 2 winds the shift cable 4. The rider can operate the winding reel 2 to wind or unwind the shift cable 4 by flicking the lever 3 with his finger, thereby pulling the derailleur to change the chain on different freewheels.

[0030] Reference Figure 3 , Figure 4 and Figure 5 The floating disk 6 rotates around the support shaft 11 and is connected to the mounting base 1 and rotates synchronously with the winding disk 2. There is a certain height difference between the floating disk 6 and the winding disk 2. The floating disk 6 can rise and fall relative to the winding disk 2. The upper end of the floating disk 6 is provided with a first end face gear 61. The first end face gear 61 has multiple meshing teeth 611 that are radially distributed around the support shaft 11.

[0031] Reference Figure 3 , Figure 6 and Figure 7 The positioning disk 7 is adjustable in the vertical direction and is relatively fixed to the support shaft 11 in the circumferential direction. The lower end of the positioning disk 7 is provided with a second end face gear 71. The second end face gear 71 has a plurality of meshing tooth grooves 711 radially distributed around the support shaft 11. A gear tooth 712 is formed between two adjacent meshing tooth grooves 711. The first end face gear 61 is positioned and meshed in the meshing tooth grooves 711 by the meshing teeth 611.

[0032] Reference Figure 3The elastic element 5 extends and contracts in the vertical direction. The elastic element 5 is disposed between the winding reel 2 and the floating disk 6. Specifically, the lower end of the elastic element 5 abuts against the winding reel 2, and the upper end abuts against the lower end of the floating disk 6. The elastic element 5 always applies an upward elastic force to the floating disk 6 to restrict the floating disk 6 from moving downward relative to the winding reel 2 and to press the floating disk 6 upward against the positioning disk 7. On the other hand, the elastic element 5 also applies a downward elastic force to the winding reel 2 to realize the function of pressing the winding reel 2 downward and mounting it on the mounting base 1.

[0033] Reference Figure 1 , Figure 3 , Figure 4 and Figure 6 When the lever 3 is actuated to rotate around the support shaft 11, the lever 3 drives the winding reel 2 and the floating disc 6 to rotate synchronously. The winding reel 2 winds up or unwinds the shift line 4, and the first end face gear 61 rotates and jumps relative to the second end face gear 71. At the same time, since the elastic element 5 always applies an upward elastic force to the floating disc 6, the floating disc 6 is first forced to approach the winding reel 2 and then move away from the winding reel 2.

[0034] When the lever 3 is released, the first end face gear 61 is once again positioned and engaged in the engagement groove 711 by the engagement teeth 611, and the elastic force of the elastic element 5 can keep the first end face gear 61 and the second end face gear 71 engaged, so as to lock the floating disk 6 in the axial and circumferential directions and prevent the winding disk 2 from rotating freely.

[0035] This shifter uses fewer transmission parts, enabling fast and accurate power transmission. The transmission is simple and efficient. (Refer to...) Figure 3 Furthermore, by adjusting the vertical position of the positioning plate 7, the height difference between the floating plate 6 and the winding plate 2, as well as the elastic force of the elastic element 5, can be changed, ultimately achieving the purpose of adjusting the minimum force required to shift the lever 3. This allows the rider to customize and adjust to a comfortable shifting feel and force. After the lever 3 completes the shifting operation by rotating a certain angle, it does not need to return to the initial position. The rider's fingers can sense the rotation angle of the lever 3, making it convenient for the rider to quickly judge whether the shifting operation has been successfully completed by touch.

[0036] In some embodiments of this utility model, reference is made to Figure 4 and Figure 5 The slope of the engagement tooth 611 on one side of the gear engagement rotation direction is smaller than the slope on the other side of the gear disengagement rotation direction. The gear engagement rotation direction and the gear disengagement rotation direction are opposite. (Refer to...) Figure 6 and Figure 7The slope of the meshing tooth groove 711 on one side of the gear shifting direction is smaller than that on the other side of the gear shifting direction. The meshing tooth 611 rotates more easily in the gear shifting direction than in the gear shifting direction. This makes it easier for the rider to apply different forces when turning the lever 3 in the gear shifting direction and in the gear shifting direction. The resulting difference in feel helps the rider to judge whether they are shifting up or down.

[0037] Reference Figure 4 and Figure 6 In some embodiments, a limit block 62 is provided at the upper end of the floating disk 6, and a stop block 72 is provided at the lower end of the positioning disk 7. When the floating disk 6 rotates to the limit position, the stop block 72 is configured as a stop limit block 62 to limit the rotation range of the floating disk 6 relative to the positioning disk 7.

[0038] The limiting block 62 is located on the inner ring of the first end face gear 61, and the stop block 72 is located on the inner ring of the second end face gear 71 to prevent interference with the engagement between the first end face gear 61 and the second end face gear 71.

[0039] In some embodiments, refer to Figure 1 and Figure 2 This shifter also includes an adjusting screw 9, see reference. Figure 3 and Figure 4 The upper end of the support shaft 11 is provided with an internal thread 111. The screw of the adjusting screw 9 is threadedly connected to the internal thread 111. The head of the adjusting screw 9 abuts against the upper end of the positioning plate 7. When the adjusting screw 9 is spirally raised and lowered relative to the support shaft 11, the positioning plate 7 squeezes or expands the height difference between the floating plate 6 and the winding plate 2, and changes the deformation and elasticity of the elastic element 5, thereby adjusting the minimum force required to move the lever 3, which is convenient for adjustment.

[0040] In some embodiments, a washer 8 is sandwiched between the head of the adjusting screw 9 and the upper end of the positioning plate 7. The screw of the adjusting screw 9 passes through the washer 8 and is threadedly connected to the internal thread 111. The washer 8 can protect the adjusting screw 9 and the positioning plate 7 from damage.

[0041] Reference Figure 4 and Figure 6 In some embodiments, the outer peripheral surface of the support shaft 11 is recessed inward and provided with an axial guide groove 112. The inner peripheral surface of the positioning disk 7 is correspondingly provided with an axial slider 73. The axial slider 73 slides up and down to connect with the axial guide groove 112, ensuring that the vertical position of the positioning disk 7 relative to the support shaft 11 is adjustable, and also preventing the positioning disk 7 from rotating, ensuring that the positioning disk 7 maintains a relatively fixed positional relationship with the support shaft 11 along the circumferential direction.

[0042] Elastic element 5 can specifically be a diaphragm spring, see reference. Figure 3 and Figure 4The diaphragm spring includes a connecting ring 51 that abuts against the floating disk 6 and a plurality of elastic spring sheets 52 arranged circumferentially on the inner wall of the connecting ring 51. The elastic spring sheets 52 extend obliquely toward the winding disk 2 and abut against the winding disk 2. The diaphragm spring as a whole can extend and retract vertically and is always in a compressed state, always applying an upward elastic force to the floating disk 6, so that the floating disk 6 presses upward against the positioning disk 7.

[0043] In some embodiments, refer to Figure 3 and Figure 4 The winding disc 2 is provided with multiple locking blocks 21 along the circumference, and the floating disc 6 is provided with multiple locking slots 63 along the circumference. The locking blocks 21 extend in the vertical direction and are embedded in the locking slots 63 so that the winding disc 2 can drive the floating disc 6 to rotate synchronously, and the floating disc 6 can slide up and down relative to the locking blocks 21.

[0044] In some embodiments, refer to Figure 1 The lever 3 is fastened to the winding reel 2. The lever 3 can drive the winding reel 2 to rotate synchronously. The winding reel 2 and the lever 3 form a winding groove 10. The winding groove 10 can wind the shift line 4 and constrain the winding direction of the shift line 4.

[0045] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] Of course, this utility model is not limited to the above-described embodiments. Those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of this utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A manual transmission, characterized in that, Includes a mounting base for mounting on a handlebar, on which a support shaft is fixedly mounted. The support shaft extends axially in a vertical direction, and the mounting base is provided with the following components sequentially from bottom to top along the axial direction of the support shaft: A winding reel and a lever, wherein the winding reel is rotatably connected to the mounting base about the support shaft, and the lever is mounted on the winding reel and can be actuated to rotate about the support shaft to wind the shift line onto the winding reel; The elastic element has its lower end abutting against the winding reel and extends and retracts in the vertical direction; A floating disk is rotatably connected to the mounting base around the support shaft and rotates synchronously with the winding disk. The lower end of the floating disk is abutted by the upper end of the elastic element. The floating disk can rise and fall relative to the winding disk. A first end face gear is provided at the upper end of the floating disk. The first end face gear has a plurality of meshing teeth that are radially distributed around the support shaft. The positioning disk is adjustable in the vertical direction and relatively fixed to the support shaft in the circumferential direction. The lower end of the positioning disk is provided with a second end face gear, which has a plurality of meshing tooth grooves radially distributed around the support shaft. The first end face gear is positioned and engaged in the meshing tooth groove by meshing teeth. The elastic element always applies an upward elastic force to the floating disk to limit the downward movement of the floating disk relative to the winding disk. When the lever is actuated to rotate around the support shaft, the winding disk winds up or unwinds the shift line, and the first end face gear rotates and jumps relative to the second end face gear. When the lever is released from actuation, the first end face gear is positioned and engaged in the meshing tooth groove again by meshing teeth.

2. The selector gearbox according to claim 1, characterized in that The slope of the engagement teeth on one side in the gear-up rotation direction is smaller than the slope on one side in the gear-down rotation direction. The gear-up rotation direction is opposite to the gear-down rotation direction. The slope of the engagement tooth groove on one side in the gear-up rotation direction is smaller than the slope on one side in the gear-down rotation direction.

3. The selector gearbox according to claim 1, characterized in that The upper end of the floating disk is provided with a limit block, and the lower end of the positioning disk is provided with a stop block. The stop block is configured to stop the limit block to limit the rotation range of the floating disk relative to the positioning disk.

4. The selector gearbox according to claim 3, characterized in that The limiting block is located on the inner ring of the first end face gear, and the stop block is located on the inner ring of the second end face gear.

5. The selector gearbox according to claim 1, characterized in that It also includes an adjusting screw. The upper end of the support shaft has an internal thread. The screw of the adjusting screw is threaded to the internal thread. The head of the adjusting screw abuts against the upper end of the positioning plate. When the adjusting screw spirals up and down relative to the support shaft, the positioning plate squeezes or expands the height difference between the floating plate and the winding plate, and changes the deformation of the elastic element.

6. The selector gearbox according to claim 5, characterized in that A washer is sandwiched between the head of the adjusting screw and the upper end of the positioning plate, and the screw rod passes through the washer and is threaded into the internal thread.

7. The selector gearbox according to claim 5, characterized in that The outer circumferential surface of the support shaft is recessed inward and has an axial guide groove. The inner circumferential surface of the positioning disk is correspondingly provided with an axial slider, which slides up and down to connect with the axial guide groove.

8. The selector gearbox according to claim 1, characterized in that The elastic member is a diaphragm spring, which comprises a connecting ring abutting against the floating disc and a plurality of elastic spring blades arranged on the inner wall of the connecting ring in the circumferential direction, the elastic spring blades extend obliquely towards the winding disc and abut against the winding disc.

9. The selector gearbox according to claim 1, characterized in that The winding disc is provided with a plurality of clamping blocks in the circumferential direction, and the floating disc is provided with a plurality of clamping grooves in the circumferential direction, the clamping blocks extend in the up-down direction and are embedded in the clamping grooves, so that the winding disc can drive the floating disc to rotate synchronously, and the floating disc can slide up and down relative to the clamping blocks.

10. The selector gearbox according to claim 1, characterized in that The shifting lever is tightly connected with the winding disc, and a winding groove is formed between the winding disc and the shifting lever, and the winding groove can wind the shift wire.

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