Pulley for a continuously-variable-ratio drive

Details Pulley for a continuously-variable-ratio drive Pulley for a continuously-variable-ratio drive

2007-02-20

2007-02-20

Charles, Marcus (Department: 3682)

Endless belt power transmission systems or components

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

Load responsive

Reexamination Certificate

active

10691161

ABSTRACT:
A pulley for a continuously-variable-ratio drive, having a fixed half-pulley fitted to a shaft of the drive; a movable half-pulley mounted to slide axially with respect to the fixed half-pulley to define with it a V groove of variable size for a V belt; and a torque-sensitive, axial thrust compensating device having an acceleration cam and a deceleration cam, which are interposed between the fixed half-pulley and the movable half-pulley to generate thrust on the movable half-pulley in the compression direction of the belt in response to both a drive torque and a braking torque.

REFERENCES:
patent: 2155351 (1939-04-01), Paulus
patent: 2951388 (1960-09-01), Tacquet
patent: 3605510 (1971-09-01), Laughlin
patent: 4173155 (1979-11-01), Togami et al.
patent: 6413178 (2002-07-01), Chamberland
patent: 6733406 (2004-05-01), Kitai et al.
patent: 2002/0065156 (2002-05-01), Younggren
patent: (58-142060 (1983-08-01), None
patent: (170552 (1984-09-01), None
patent: (63-67453 (1988-03-01), None
patent: (05-60192 (1993-03-01), None
patent: (05-87202 (1993-04-01), None
patent: (11-257447) (1999-09-01), None
patent: (2002-227949 (2002-08-01), None
Patent Abstracts of Japan of JP 10-110797 of Apr. 1998.
Patent Abstracts of Japan of JP 58-142060 of Aug. 1983.
Patent Abstracts of Japan of JP 11-173392 of Jun. 1999.

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