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Speed-changing operation apparatus

A control device and hand-operated technology, which can be used in vehicle gearboxes, chain/belt transmissions, bicycle gear shifting mechanisms, etc., and can solve the problems of difficult, complicated and expensive installation of gear indicators

Inactive Publication Date: 2004-06-30
SHIMANO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such gear indicators are often difficult, complex and expensive to install

Method used

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  • Speed-changing operation apparatus
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  • Speed-changing operation apparatus

Examples

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Embodiment Construction

[0044] see first figure 1 and 2 , shows a conventional bicycle 10 on which a pair of shifting units 11a and 11b according to the first embodiment of the present invention are connected. The bicycle 10 is a conventional bicycle comprising a frame 12, a handle bar 13, a pair of wheels 14, a pair of pedals 15 for driving a chain 16, a rear derailleur 17 and a front derailleur 18, wherein the rear derailleur The chain guide guides the chain 16 in the lateral direction of a plurality of rear sprockets mounted on the rear wheel 14, and the front derailleur guides the chain 16 in the lateral direction of a plurality of front sprockets mounted on the chassis (not shown).

[0045] The bicycle 10 and its various components, with the exception of the shifting units 11a and 11b, are well known in the art. Accordingly, bicycle 10 and its various components will not be discussed or shown in detail herein, other than those pertaining to the present invention. In other words, only the tran...

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PUM

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Abstract

A shift operating device 19a, 19b for a bicycle 10 is provided to change gears of the bicycle. The shift operating device 19a, 19b is coupled to the front or rear derailleur 18 via a shift cable 20a, 20b. The shift operating device 19a, 19b is also coupled to a gear indicator device 21a, 21b via an indicator cable 22a, 22b. The shift operating device 19a, 19b has an attachment portion 24, 24', 24'', a hand operating portion 25, 25', 25'', and a take up member 26, 26', 26''. The attachment portion 24, 24', 24'' is adapted to be coupled to a portion of a handlebar 13 of the bicycle 10. The hand operating portion 25, 25', 25'' is coupled to the attachment portion 24, 24', 24'' to move between a plurality of shifting positions. The take up member 26, 26', 26'' is operatively coupled to the hand operating portion 25, 24', 25'' to move in response to movement of the hand operating portion 25, 25', 25''. The take up member has a peripheral winding surface 35, 35', a first cable attachment point 36, 36' and a second cable attachment point 37, 37'. The first and second cable attachment points 36, 36'; 37 37' of the take up member 26, 26', 26'' are located such that shift and indicator cables 20a, 20b; 22a, 22b extend outwardly from the take up member 26, 26', 26'' and winds about the peripheral winding surface 35, 35'.

Description

technical field [0001] The present invention generally relates to a shift operating device for a bicycle. In particular, the present invention relates to a shift operating device with a gear indicator operatively connected to a portion of a bicycle driveline to indicate the position of the bicycle's front or rear gears. Background technique [0002] Cycling is an increasingly popular form of recreation and mode of transportation. And cycling has become a very popular competitive sport. Whether the bicycle is used for recreation, transportation, or competition, the bicycle industry is constantly improving various components of the bicycle. In particular, bicycle components are constantly becoming lighter and cheaper while maintaining a high level of performance. Moreover, bicycle components are continually being designed to become more ergonomic and user-friendly. The bicycle shifting unit is an example of a bicycle part that has been redesigned several times over the pas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M25/00B62J99/00B62K23/06B62M9/127B62M9/128B62M9/137B62M9/138B62M25/02B62M25/04
CPCY10T74/20438Y10T74/2048B62M25/04B62K23/06Y10T74/20287Y10T74/20486
Inventor 尾濑宪治
Owner SHIMANO INC