Bicycle derailleur

A technology for derailleurs and bicycles, which is applied to vehicle components, vehicle gearboxes, chain/belt transmissions, etc., which can solve problems such as chain slack and prevent chain drop

Active Publication Date: 2017-02-22
TEKTRO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a bicycle derailleur to solve the unexpected slack of the chain caused by the vibration generated by the collision

Method used

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  • Bicycle derailleur
  • Bicycle derailleur
  • Bicycle derailleur

Examples

Experimental program
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Effect test

Embodiment Construction

[0050] Below in conjunction with accompanying drawing, structural principle and working principle of the present invention are specifically described:

[0051] see figure 1 . figure 1 It is a partial plan view of the rear half of the bicycle according to the first embodiment of the present invention.

[0052] The structure of the rear half part 1 of the bicycle of this embodiment generally includes a frame 10 , a rear gear shift wheel set 20 , a rear derailleur 30 and a chain 40 . The rear derailleur 20 and the rear derailleur 30 are all installed on the vehicle frame 10, and the rear derailleur 30 includes a driving element 31, a connecting rod member 32, a bicycle derailleur 33, a guide sprocket 34 and a tension wheel 35 . The driving element 31 includes, for example, a driving motor coupled with a reduction gear set. The guide wheel 34 and the tension wheel 35 are respectively disposed on the bicycle derailleur 33 , and the tension wheel 35 can be driven by the bicycle ...

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PUM

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Abstract

A bicycle derailleur is arranged on a linkage member and includes a movable member, a chain guide member and a resistance applying member. The movable member is connected to linkage assembly. The chain guide member is pivoted to the movable member. The resistance applying member is connected between the movable member and the chain guide member. The resistance applying member includes a pivot base, a first engagement member and a second engagement member. The pivot base includes a pivot part and a pressing part. The pressing part extends radially outwardly from the pivot part. The first engagement member is pivoted to the pivot part and pressed by the pressing part. The second engagement member is unidirectionally engaged with the first engagement member so that the first engagement member is only rotatable with respect to the second engagement member in a rotatable direction. When the chain guide member moves in a direction with respect to the movable member, the pivot base and the first engagement member rotate relative to the second engagement member. When the chain guide member rotates in a reverse direction, the first engagement member is pressed by the second engagement member and is pushed to rotate relative to the pivot base.

Description

technical field [0001] The invention relates to a bicycle transmission device, in particular to a bicycle derailleur with rotation resistance. Background technique [0002] A typical bicycle derailleur transmission includes multiple sprockets that rotate with the front crank or with the rear wheel, a chain, and a derailleur that selectively shifts or shifts the chain between the multiple sprockets. A typical derailleur includes a base member adapted to be mounted to a bicycle frame, a movable member movably coupled to the base member, and a chain guide coupled to the movable member. The chain guide engages the chain to selectively shift the chain between the plurality of sprockets as the movable member moves relative to the base member. [0003] The chain guide of the rear derailleur is usually rotatably mounted to the movable member and is spring biased in a clockwise direction so that when the chain engages the smaller diameter sprocket, the chain guide can tighten (take ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/126B62M9/16
CPCB62M9/1242B62M9/124B62M9/126B62M9/16B62M2009/007
Inventor 约翰·卡兰卓尔
Owner TEKTRO TECH
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