| 摘要 |
<p>The apparatus has a roller clutch (10a) and support bearings (9a) provided between an inner peripheral surface of a pulley (7a) having grooves on an outer peripheral surface of the pulley, and on the outer surface of a sleeve (8). A ratio of a diameter (Da) of rollers (11a) to the diameter (Do) of the inner surface of clutch outer race (22) is greater than 0.07, where rollers constitute the clutch.</p> |
