Traveling chain derailer

Details Traveling chain derailer Traveling chain derailer

1997-02-27

1999-01-12

Schoeppel, Roger J.

Endless belt power transmission systems or components

Control for variable input to output speed-ratio

Including belt shiftable axially from one to another surface...

474 80, 474 85, F16H 5900

Patent

active

058579311

ABSTRACT:
A traveling chain mechanism has spaced sprockets with an endless chain trained around them. A traveling chain is transferable between the sprockets radially inward of the endless chain. The speed ratio between the sprockets is dependent upon which sprocket has the traveling chain connected thereto. By transferring the traveling chain between the sprockets, the speed ratio is changed. A derailer mechanism initiates the transfer of the traveling chain from one sprocket to the other. The derailer mechanism incorporates a pair of axially spaced derailer arms that are axially movable into the path of a long pin on a lead link of the traveling chain. The long pin engages the arms to cause pivoting thereof thereby aligning a ramp thereon with the shorter pins on each link. The derailer arms guide the traveling chain to a guide track for transportation by the endless chain to the other sprocket.

REFERENCES:
patent: 5180340 (1993-01-01), Vahabzadeh
patent: 5180341 (1993-01-01), Vahabzadeh et al.
patent: 5201688 (1993-04-01), Vahabzadeh
patent: 5234380 (1993-08-01), Vahabzadeh
patent: 5234381 (1993-08-01), Vahabzadeh et al.
patent: 5246406 (1993-09-01), Vahabzadeh

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