A BIDIRECTIONAL CONTROLLED FREE-WHEELING DEVICE FOR MOTORCYCLES

WIPO Patent Application WO/2001/018420

A1

A bidirectional controlled free-wheeling device for motorcycles comprises a chain wheel (1), a dust cover (3), a roller race (7) fixed to said chain wheel (1), a polygonal disk (5) which is mounted in the inner periphery of said roller race (7) for providing a plurality of bowed spaces and a plurality of annular recesses therebetween, a bush (2) which is rotatably engaged with said polygonal disk (5) through a bearing (6), a plurality of clamping rollers (10) disposed in said bowed spaces, an annular cage (11) which is provided in said bowed spaces and said annular recesses with a plurality of pockets in which said clamping rollers are holded, an annular dust-proof friction plate (13) which is provided between said cage (11) and a check ring (12) locked at said polygonal disk, and a roller stop provided in said polygonal disk.

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JP2018204785	CLUTCH, DRIVE TRANSMISSION, AND IMAGE FORMING DEVICE
JPH04228933	COMPONENT FOR OVERRUNNING CLUTCH

WU BENYIN (CN)

PCT/CN1999/000184

March 15, 2001

November 11, 1999

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WU BENYIN (CN)

F16D41/10; F16D41/28; (IPC1-7): F16D41/10; F16D41/067; F16D41/28

CN1089554A	1994-07-20
CN2147986Y	1993-12-01
EP0554138A1	1993-08-04
US5443147A	1995-08-22
US4901831A	1990-02-20
US5547054A	1996-08-20
EP0528037A1	1993-02-24
EP0580988A1	1994-02-02
DE4003220A1	1991-08-08

BEIJING SANYOU PATENT AGENCY CO., LTD. (Beijing 8, CN)

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