Apparatus for the control by a cable of speed change devices of

Details Apparatus for the control by a cable of speed change devices of Apparatus for the control by a cable of speed change devices of

1977-03-24

1979-07-17

Gerin, Leonard H.

Machine element or mechanism

Gearing

Toothed gear and recirculated unconnected elements

742423, F16H 710, F16H 900, F16H 1108

Patent

active

041611241

ABSTRACT:
Apparatus for the control by a cable of a speed change device comprising an articulated parallelogram including a fixed upper support, a laterally movable lower support and two parallel levers pivotably connected to the supports. A chain guide is secured to the lower support and is laterally movable therewith for derailing a chain on pinions of a free wheel cluster. The parallelogram is subject to an elastic member which deforms the parallelogram in one direction, the cable acting on the parallelogram to deform it in the other direction against the action of the elastic member. The sheath of the cable is secured to the upper support of the parallelogram and the cable itself is secured to the lower support of the parallelogram such that application of external force to the cable produces deformation of the parallelogram. The upper support has a projection which can be integral therewith or attached thereto for carrying the sheath stop and disposing the same in an offset position laterally in the direction of the free wheel cluster and vertically in the direction of the lower support. The projection can have a groove in which the cable is received.

REFERENCES:
patent: 3394604 (1968-07-01), Kimura
patent: 3994167 (1976-11-01), Juy
patent: 4061048 (1977-12-01), Huret et al.

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