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Coaxially mounted electromechanical transmission with locking device

A locking device, transmission technology, applied in the direction of vehicle gearbox, chain/belt drive, transportation and packaging, etc., can solve the problem of undesired shifting process and so on

Pending Publication Date: 2022-03-04
SRAM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Undesired shifts are more likely to occur in both cases

Method used

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  • Coaxially mounted electromechanical transmission with locking device
  • Coaxially mounted electromechanical transmission with locking device
  • Coaxially mounted electromechanical transmission with locking device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] Detailed Description of the Preferred Embodiment

[0063] The directional specifications "front / rear", "outer / inner", "up / down" and "left / right" used in the following text refer to the bicycle aligned and applied in the direction of travel. The bicycle frame 1 has left and right dropouts 2 between which a rear wheel (not shown here) is mounted. The rear wheel rotates around the rear wheel axis A together with the pinion set 4 . The pinion set 4 is shown schematically and rotates about the rear axle A. Such a pinion set 4 can comprise, for example, 12 pinions, the smallest pinion having ten teeth and the largest pinion having 52 teeth.

[0064] An electromechanical transmission 10 is mounted on the right fork 2 . When switching from a larger pinion to a smaller pinion, the transmission 10 moves the chain 5 axially outward (outward). When shifting from a smaller pinion to a larger pinion, the transmission 10 moves the chain 5 axially inward (inwardly). Axially refers...

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PUM

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Abstract

The invention relates to an electromechanical rear derailleur for coaxial mounting on a rear axle. The transmission has a base element, a pivot mechanism, and a movable element including a chain guide arrangement. The chain guide arrangement is connected to the movable element so as to be rotatable about an axis of rotation. A locking device enables the chain guide arrangement to be fixed relative to the movable element. The locking device can engage the movable element in two different positions.

Description

technical field [0001] The invention relates to a rear derailleur, in particular an electromechanical derailleur for coaxial mounting on the rear axle. Background technique [0002] The rear derailleur is usually secured to the right fork of the frame by means of the derailleur lug. The transmission lug is fastened at one end coaxially to the vehicle frame with the rear wheel axle and at the other end is connected coaxially with the B-axis of the basic element of the transmission (B knuckle). The distance between the geometric axis A of the rear axle and the B axis of the base element is bridged by the transmission lug. The base element can rotate about the B-axis relative to the transmission lug in the state mounted on the vehicle frame. Rotation of the derailleur is limited to counterclockwise forward with the aid of the B-screw. The rearward (clockwise) rotation of the derailleur is counteracted by the chain tension. [0003] EP 0 875 444 A1, EP 1 342 658 A1 and EP 1 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62M9/121B62M9/128B62M9/125
CPCB62M9/121B62M9/128B62M9/125B62M9/122B62M9/126B62M9/1248
Inventor 亨利克·布莱特海科·雷德克
Owner SRAM