Positive clutch

A positive clutch comprising:

• an inner race and an outer race that are coaxial and rotatable relative to each other;
• and
• a plurality of rollers disposed between the inner race and the outer race and transmitting or interrupting torque, the inner race and the outer race being configured to engage with each other via part or all of the plurality of rollers held in a circumferential direction between roller support parts and pocket parts, the roller support parts being formed on one of an outer circumferential surface of the inner race and an inner circumferential surface of the outer race, and the pocket parts being formed on the other of the outer circumferential surface of the inner race and the inner circumferential surface of the outer race and being configured to accommodate the rollers,
• the positive clutch further comprising a torque limiting member that applies a radial load on the rollers to press the rollers against the roller support parts, the torque limiting member being coaxial with the inner race and the outer race, and being flat and annular in an axial direction, and moreover being resiliently deformable in a radial direction,
• wherein the rollers each have an outer circumferential surface serving as a retaining ring receiving surface, and
• an outer circumferential surface or an inner circumferential surface of the torque limiting member is in contact with the retainer ring receiving surfaces of the plurality of rollers so as to apply a load to one or both axial ends of each of the plurality of rollers.

A positive clutch comprising:

• an inner race and an outer race that are coaxial and rotatable relative to each other;
• and
• a plurality of rollers disposed between the inner race and the outer race and transmitting or interrupting torque, the inner race and the outer race being configured to engage with each other via part or all of the plurality of rollers held in a circumferential direction between roller support parts and pocket parts, the roller support parts being formed on one of an outer circumferential surface of the inner race and an inner circumferential surface of the outer race, and the pocket parts being formed on the other of the outer circumferential surface of the inner race and the inner circumferential surface of the outer race and being configured to accommodate the rollers,
• the positive clutch further comprising a torque limiting member that applies a radial load on the rollers to press the rollers against the roller support parts, the torque limiting member being coaxial with the inner race and the outer race, and being flat and annular in an axial direction, and moreover being resiliently deformable in a radial direction,
• wherein there is an angle difference between a wall surface of the roller support part and a wall surface of the pocket part that hold each of the rollers.