| 摘要 |
A starter having a highly reliable overrunning clutch (350) which has grooves (351a, 352a, 355) on both a clutch inner (352) and a clutch outer (351). Rollers (353) are sandwiched from the front and rear torque conveyance direction by the roller contact surface of each groove (351a, 352a, 355), so a large stress such as with the roller-type overrunning clutch using the wedge-effect is not applied on each contact surface and roller contact surface. This reduces the inertia of the clutch (350), and suppresses the impact force generated when a pinion (200) engages an engine ring gear (100). <IMAGE> |
