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Auxiliary speed changing device, main speed changing device and speed shifting system

An operating device and main shifting technology, applied in bicycle control systems, bicycle gear shifting mechanisms, bicycle accessories, etc., can solve problems such as difficult shifting operations and different operating positions of shift levers

Inactive Publication Date: 2004-04-28
SHIMANO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this existing shift operating system, there is only one shift lever, so the operating position of the shift lever will vary depending on the position determined on the winding body.
In this way, the shift lever must be operated in different positions corresponding to different shift gears, so it is difficult to reliably and conveniently perform shift operation at two handle positions.

Method used

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  • Auxiliary speed changing device, main speed changing device and speed shifting system
  • Auxiliary speed changing device, main speed changing device and speed shifting system
  • Auxiliary speed changing device, main speed changing device and speed shifting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the main shift operating devices 10f and 10r as an embodiment of the present invention are attached to both ends of the handlebar body 12 extending to the left and right of the handlebar 11 . On the handle 12, in addition to the main shift operating devices 10f and 10r, a handle cover 13 is attached to the outer side thereof. On both outer sides of the handle cover 13, end bars 14 as a constituent member of the handle 11 are mounted. The rod end 14 is installed on the two ends of the handle rod body 12, and its front side rises slightly. The handlebar body 12 is mounted on the front end of the handlebar riser 18 . The base end of the standpipe 18 is fixedly clamped in the front fork standpipe 17 at the front end of the bicycle frame 16 at the upper end of the front fork 15 with the suspension system.

[0050] At the front end of the end lever 14, auxiliary transmission operating devices 20f, 20r provided for remote operation of the front an...

Embodiment 2

[0072] In the above-mentioned embodiment, the auxiliary transmission lever of the auxiliary transmission operating device is rotated in the opposite direction. However, it is also possible to use Figure 10 , 11 shown, turning in the same direction. In this case, the wiring of the steering wires 21a, 21b is easy.

[0073] In this solution, the auxiliary transmission operating device 20r includes an auxiliary operation bracket 60, a first auxiliary transmission lever 61, a second auxiliary transmission lever 62, and a first return torsion spring 63a for returning the first auxiliary transmission lever 61 to a predetermined rotation position. And the second return torsion spring 63ab that makes the second auxiliary transmission lever 62 return to the predetermined rotation position. The auxiliary operating bracket 60 has a connecting piece 65 and a sleeve 66 fastened on the connecting piece 65 . On the outer periphery of the sleeve 66, bearings are provided with a certain di...

Embodiment 3

[0077] In the above-mentioned embodiments, two sub-shift levers are used for shifting in the sub-shift operating device. In the following embodiments, an auxiliary gear lever will be used for gear shifting.

[0078] Such as Figures 12 to 14 As shown, the auxiliary transmission operating device 20r includes an auxiliary operation bracket 90, an auxiliary transmission lever 91 freely rotatably supported on the auxiliary operation bracket 90, and rotates only by being linked with the one-way rotation of the auxiliary transmission lever 91. The rotary member 92, the first return torsion spring 93a that resets the auxiliary transmission lever 91 to a predetermined position, and the second return torsion spring 93b that resets the rotary member 92 to a predetermined position. A connecting piece 95 and a sleeve 96 fastened on the connecting piece 95 are arranged on the auxiliary operation bracket 90 . Such as Figure 13As shown, the lower end of the sleeve 96 is made into a shape...

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PUM

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Abstract

An auxiliary gear shift operation device 20r is mountable on a bar body 12 and coupled to a main gear shift operation device 10r, having first and second gear shift levers to operate a derailer in two gear shifting directions through operation from a home position, through respective two operation cables 21a and 21b, and mountable on a bar end 14 separately from the main gear shift operation device 10r. The device comprises an auxiliary operation bracket 60 mountable on the bar end 14; first and second auxiliary gear shift levers 61 and 62; and a torsional coil spring. The auxiliary gear shift levers 61 and 62 are rotatably arranged at the auxiliary bracket 60, and coupled to the two gear shift levers through two operation cables. The torsional coil spring returns the auxiliary gear shift levers 61 and 62 to respective given rotation positions.

Description

technical field [0001] The present invention relates to an auxiliary transmission operating device for bicycles which can be installed on the handle bar of a bicycle, a main transmission operating device which can be additionally installed on a handle bar different from the auxiliary transmission operating device, and a bicycle transmission including the two operating system. The main speed change operating device is connected with the auxiliary speed change operating device by means of two manipulation pull wires and simultaneously connected with the speed change device by means of the shift pull wires. Background technique [0002] A handle bar body and a handle bar extended to obtain a handle installation position different from the handle bar body are provided on the existing bicycle handle bar. Install brake levers or gearshift levers at both ends of the handle bar body. In particular, on mountain bikes for off-road racing, in order to obtain multiple handle installat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K23/06B62M25/04
CPCB62K23/06B62M25/04
Inventor 尾濑宪治高桥则明
Owner SHIMANO INC