Multi-speed transmission

Details Multi-speed transmission Multi-speed transmission

1980-10-20

1983-07-26

Staab, Lawrence J.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

And member has plural, relatively axially movable drive faces

474 29, 474152, 474160, F16H 5556, F16H 5530, F16H 1104

Patent

active

043952488

ABSTRACT:
A multi-part sprocket and a multi-speed transmission comprising at least a pair of the sprockets, the sprockets each comprising an external toothed drive member surrounded by a two part externally toothed ring member, one part of which is axially movable with respect to the other with both parts having internal teeth meshing with the external teeth of the drive member. Another similar two part member surrounds the first; the similar member having external and internal teeth.
A chain connects a pair of sprockets, the chain meshing the external teeth. The speed ratio between the sprocket can be changed by axially moving parts of the ring member. The ring members have beveled surfaces facing one another to guide the chain during a speed ratio change.

REFERENCES:
patent: 280519 (1883-07-01), Rumley
patent: 1629564 (1927-05-01), White
patent: 1993131 (1935-03-01), Borgna
patent: 2074997 (1937-03-01), Faltermayer
patent: 3037396 (1962-06-01), Martin
patent: 3707883 (1973-01-01), Kamenick
patent: 3918515 (1975-12-01), Shiing

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