Patent ID: 7861836

Claim:
A roller type one-way clutch comprising: an annular outer race provided at its inner periphery with a cam surface; an inner race spaced radially inwardly from said outer race and disposed coaxially with said outer race for relative movement therebetween, said inner race having an annular outer peripheral track surface; 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; a cage having a plurality of radially penetrating pocket portions, said cage holding said plurality of rollers with each roller being received in a respective one of said pocket portions and each pocket portion having a circumferential width that is smaller than a diameter of the corresponding roller; and a C-shaped annular spring biasing said rollers, through said cage, toward engagement with said cam surface, wherein said spring has a plurality of curved portions equidistantly disposed along a circumferential direction and protruding from an inner diameter side of said spring, said curved portions each being fitted into a respective one of said pocket portions of said cage.