Continuously variable all speed transmission

Details Continuously variable all speed transmission Continuously variable all speed transmission

1998-06-12

1999-09-28

Hannon, Thomas R.

Endless belt power transmission systems or components

Means for adjusting belt tension or for shifting belt,...

Tension adjuster has surface in sliding contact with belt

474122, 474149, 474150, 474167, 474204, 474243, F16H 708, F16H 722, F16H 702, F16G 128

Patent

active

059577940

ABSTRACT:
A continuously variable all speed transmission apparatus employs a conically-shaped driven surface which is frictionally contacted by a taut endless compliant transmission member that extends to a circular power source such as the pedal hub of a bicycle. The driven surface is centered upon an axis upon which an axle is disposed that causes rotation of a wheel such as a bicycle wheel. A shifting mechanism moves the contact site of the transmission member axially along the driven surface, thereby producing variation in the rotational speed of the wheel. The transmission member includes a central wire and a series of rollers disposed upon the wire in a manner to rotate about the wire without moving longitudinally thereupon.

REFERENCES:
patent: 4048863 (1977-09-01), Pemberton
patent: 4367067 (1983-01-01), Chao
patent: 4650445 (1987-03-01), Mott
patent: 4676768 (1987-06-01), Miranti, Jr. et al.
patent: 4692128 (1987-09-01), Sadler
patent: 4798567 (1989-01-01), Hoshiro et al.
patent: 4820242 (1989-04-01), Sato
patent: 4900294 (1990-02-01), Schneeberger
patent: 5518460 (1996-05-01), White, Jr. et al.

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