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Clutch unit for bicycle derailleur

A technology for clutch units and derailleurs, which can be used in vehicle components, vehicle gearboxes, chain/belt transmissions, etc., and can solve problems such as inability to improve accuracy

Active Publication Date: 2017-12-05
II ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the one-way clutch 70 used in the aforementioned No. M481882 patent is an inner wheel idler type roller clutch, and its accuracy is determined by the number of spacer retaining members 70d, but the number of spacer retaining members 70d is limited by the number of rollers. 70c size, so the accuracy cannot be improved, there is still room for improvement

Method used

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  • Clutch unit for bicycle derailleur
  • Clutch unit for bicycle derailleur
  • Clutch unit for bicycle derailleur

Examples

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Embodiment Construction

[0021] The structure and effect of the present invention will be described in detail by citing the following embodiments in conjunction with the accompanying drawings.

[0022] Such as Figure 1 to Figure 3 As shown, a clutch unit 1 of a bicycle derailleur provided by a preferred embodiment of the present invention is arranged between a chain guide 2 and a link mechanism (not shown in the figure), and the clutch unit 1 includes a The main body 10 , a positioning component 20 , a pressurizing component 30 and a cover 40 are disposed on the main body 10 to seal the positioning component 20 and the pressurizing component 30 in the inner space of the main body 10 and the cover 40 .

[0023] The main body 10 is hollow cylindrical and has a receiving groove 11 on a side far away from the chain guide 2 , so that the rotating shaft 2 a of the chain guide 2 can pass through the main body 10 and protrude out of the bottom center of the receiving groove 11 . Therefore, the body 10 is pi...

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Abstract

The invention relates to a clutch unit for a bicycle derailleur. The clutch unit comprises a body and an outer cover covering the body; a positioning assembly and a pressurization assembly are accommodated in the space inside the body and the outer cover. A top surface of the body is provided with an accommodating groove and is pivoted to a rotating shaft and the rotating shaft extends out from the bottom of the accommodating groove; the positioning assembly is provided with a ratchet pivoted to the accommodating groove and rotates synchronously with the rotating shaft; at least one positioning detent is installed adjacently with the ratchet and can move close or away from the ratchet relatively; at least one elastic part which is used for applying elastic force facing the ratchet on the positioning detents; the pressurization assembly is used for applying resistance on the ratchets; the ratchet is provided with a plurality of annularly arranged ratchet teeth with equal intervals; each positioning detent is provided with an engaging tooth for engaging one of the ratchet teeth. Thereby, compared with the structure of a traditional bicycle derailleur, the present invention has a more concise and innovative structure.

Description

technical field [0001] The invention relates to a bicycle derailleur, in particular to a clutch unit which can improve the precision of the bicycle derailleur. Background technique [0002] The traditional bicycle derailleur, as described in the Chinese Taiwan No. M481882 patent, is mainly composed of a base, a connecting rod mechanism and a chain guide. The aforementioned base is used to be fixed on the frame of the bicycle , the link mechanism is connected to the base and is used to drive the chain guide to swing relative to the base, and the direction of the swing axis of the chain guide intersects with the direction of travel of the bicycle, so that the bicycle chain can be guided to sprockets with different numbers of teeth on, achieve the effect of shifting, and provide the proper tension for the chain to ensure smooth operation. [0003] In order to provide proper tension of the chain and reduce the unnecessary swing of the chain guide due to poor road conditions, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/12B62M9/126B62M9/136
CPCB62M9/12B62M9/126B62M9/136
Inventor 张桂荣
Owner II ENG