US 7,740,118 B2Granted

Roller-type one-way clutch

AssigneeNSK-Warner K.K.

InventorsHirobumi Shirataki, Kazuhiko Muramatsu

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Abstract

The present invention provides, a roller-type one-way clutch comprising an annular outer race provided at its inner periphery with a cam surface, an inner race spaced apart from the outer race in a radially inner diameter side and disposed in coaxial with the outer race for a relative movement therewith and having an annular outer peripheral track surface, a plurality of rollers disposed between the outer race and the inner race and adapted to transmit torque between the outer peripheral track surface and the cam surface, a cage for holding the plurality of rollers, and a C-shaped annular spring for biasing the rollers toward a direction in which the rollers are engaged by the cam surface, through the cage, and wherein the C-shaped annular spring is assembled in a diameter-enlarged condition.

Claims6

Dependent claims

A roller type one-way clutch comprising:

an annular outer race provided at its inner periphery with a cam surface;
an inner race spaced apart from said outer race at a radially inner diameter side of said outer race, disposed in coaxially with said outer race for a relative movement therewith, and having an annular outer peripheral track surface;
a cage having a plurality of radially penetrating pockets;
a plurality of rollers disposed between said outer race and said inner race and adapted to transmit torque between said outer peripheral track surface and said cam surface, each roller being disposed in one of the pockets of said cage;
and
a C-shaped annular spring having a plurality of curved portions, each curved portion being fitted into one of the pockets of said cage,
wherein said annular spring biases, through said cage, said rollers toward a direction in which said rollers are engaged by said cam surface.

4 more elements

Dependencies are inferred from the claim text.