| 摘要 |
In a locking type reverse input blocking clutch of the present invention, smooth finished surfaces having no directionality are formed, by barrel polishing, on surfaces brought into contact with rollers (10) while rotation is being transmitted from the input side to the output side, i.e. an inner peripheral cylindrical surface of an outer ring (5) and a surface of a lid portion (6b) opposed to the rollers (10). With this arrangement, it is possible to reduce the sliding resistance between the rollers (10) and the outer ring (5) and between the rollers (10) and the lid portion (6b), without the need to reduce the forces of springs (11) for pushing the rollers (10) into narrow portions of wedge-shaped spaces (14). This in turn makes it possible to reduce the torque necessary to transmit rotation from the input side to the output side, while maintaining high locking performance. |
