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Control device for a bicycle derailleur

A technology for control devices and transmissions, applied to bicycle control systems, bicycle gear shifting mechanisms, bicycle brakes, etc., can solve the problems of cyclists' troubles, force reduction, etc., and achieve the effect of simplifying control tasks

Inactive Publication Date: 2005-01-26
CAMPAGNOLO SRL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will result in reduced force on the handlebars and consequent loosening of grip, including possible nuisance for the cyclist, especially on rough trails
[0009] Another flaw that has proven to be the shifting operation, both when shifting up or down, can be troublesome for a cyclist with small hands due to the difficulty in reaching the drive handle, which will force him to go from the optimum Grab the position and move
[0010] The proven flaw associated with the second type of grip is that in order to exert force with one or more fingers on the lever associated with the derailleur, whether it coincides with or behind the brake lever, the rider is forced to Loosen the grip on the control support

Method used

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  • Control device for a bicycle derailleur
  • Control device for a bicycle derailleur
  • Control device for a bicycle derailleur

Examples

Experimental program
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Embodiment Construction

[0039] exist image 3 , reference numeral 1 designates an integral right-hand control device mounted on the curved end 2 of a handlebar 3 of a racing car (see Figure 4 ). The device comprises a support body 4 in the form of a hollow metal body designed to be covered by a protective sheath 5 made of elastomer. The brake handle 7 is connected with the support body 4 by means of a hinge pin, which drives a bicycle brake through a flexible control line (not shown). Support body 4 also can be used as bicycle transmission drive mechanism (in figure 1 Also not shown in ) a case or protective case. In the case of right hand control, normally the mechanism controls the operation of the rear bicycle derailleur, while the operation of the front derailleur is controlled by the same left hand control mechanism mounted on the left end of the bicycle handlebar.

[0040] The drive mechanism of the transmission is controlled by two keys 8, 9 protruding from the inside wall 4a mounted on t...

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PUM

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Abstract

A control device for a bicycle derailleur has a supporting body that can be fixed to the handlebar and which can be gripped by the cyclist and which has an internal side wall and an external side wall, which are substantially parallel to the plane of a respective curved end of the handlebar. The device has an actuator for actuating the derailleur towards higher or lower gear ratios, controlled by means of one a first and one a second control member. The two control members are both arranged on the internal side wall of the supporting body, in a position that can be reached by the cyclist's thumb when his hand is in its normal operating position.

Description

technical field [0001] The invention relates to a control device for a bicycle transmission. The present invention relates to bicycles, in particular racing cars, comprising a frame and a handle, the middle of which is connected to the frame of the bicycle, and two curved ends extending in a plane substantially perpendicular to the middle of the handle. Background technique [0002] In the field of racing, it is generally believed that the control device integrating the bicycle transmission control and the brake can be fixed on the handlebar of the bicycle, which is easy for the rider to grasp. The drive mechanism of the transmission is generally controlled by two handles associated with the controls. [0003] According to a first known technique, the first control handle extends behind and along the brake handle, capable of generating a transverse drive in the direction of movement of the brake handle for transmission control in a first working direction. A second control...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62L3/02B62K23/04B62K23/06B62M9/122B62M9/128B62M9/132B62M9/138B62M25/04B62M25/08
CPCB62K23/06B62M25/04B62M25/08Y10T74/2003Y10T74/20256
Inventor 朱塞佩·达尔普拉
Owner CAMPAGNOLO SRL