Actuating lever in particular for a derailleur

Details Actuating lever in particular for a derailleur Actuating lever in particular for a derailleur

1986-08-28

1988-02-09

Smith, Gary L.

Machine element or mechanism

Control lever and linkage systems

Elements

74501R, 74523, F16C 110, G05G 506

Patent

active

047234628

ABSTRACT:
An arrangement whereby the resisting force tending to oppose the shifting of a lever is roughly constant, irrespective of the direction in which the lever is shifted. For this purpose, the lever 1 is roughly freely rotatively mounted on its support 4 and an intermediate ring 7 is provided and frictionally mounted relative to the support, the lever 1 defining a cavity 18 which opens onto the outer surface of the ring 7 and in which is received an element 19 for achieving a coupling between the lever and the ring. The cavity defines a cam surface which is so oriented as to achieve a unidirectional coupling by a wedging of the coupling element between the lever and the ring.

REFERENCES:
patent: 2139863 (1938-12-01), Snell
patent: 2559960 (1951-07-01), Houplain
patent: 3915029 (1975-10-01), Shimada

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