High performance bicycle propulsion

Details High performance bicycle propulsion High performance bicycle propulsion

1996-07-26

1998-06-02

Boehler, Anne Marie

Motor vehicles

Special wheel base

Rider propulsion with additional source of power, e.g.,...

474111, 474119, 474140, 474206, B62M 2302

Patent

active

057587353

ABSTRACT:
For use in determination of chain transmitted power, the combination comprising a tensioned chain having a succession of chain links with undulating edges; an idler supported to be driven in rotation by the chain, and having an undulating perimeter surface having a sine wave configuration and whose width dimension exceeds the width dimension between outermost chain surfaces; and certain of the chain undulating edges engaging portions of the idler undulating perimeter surfaces, whereby the chain changes direction as it travels lengthwise relative to the idler and rotatably drives the idler.

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