To solve a problem where a disc spring is damaged since stress is concentrated at a curved part of the disc spring though the disc spring is interposed to prevent generation of abnormal sound due to rattling of a spline engagement device at the time of changing idling and engagement of a one-way clutch to each other.
A recessed part 15 is formed on one side surface 2a of a spring projection 2 of an outer race outer peripheral surface. The disc spring 13 energizes the projection 2 with the curved part 13a and a linear part 13b as a spring body when its fixed part 13c is fixed and supported on the one side surface 1a of a spline recessed groove 1. Even when the disc spring is bent due to a load of the projection 2, a specified distance (m) against the recessed part 15 exists between a contact part C with a protruded part 14 of the one side surface and the curved part 13a. Thus, the concentrated stress does not work on the curved part.
| JP6095599 | Gearless drive mechanism |
| JPS63195428 | ONE-WAY CLUTCH |
| JP2000130563 | PULLEY UNIT |
KANO TAKEMASU
KIMURA TOUZOU
