| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pulley unit preventing rising of a roller caused by a centrifugal force, in a torque limit state wherein a roller is received by a recess part for torque limit. <P>SOLUTION: The pulley unit is assembled between a projected tube part 3 projected to one side of a casing 2 of engine accessories 1 and a rotational shaft 4, and is provided with a pulley 11, a rolling bearing 20, and a one-way clutch 40. The one-way clutch 40 has an inner ring body 42, an outer ring body 41, a cam face 45, the roller 61, and the recess part 46 for torque limit. An annular member 30 is disposed between the outer ring body 41 of the one-way clutch 40 and the pulley 11 to connect them to transmit torque between them. A part of a fitting part between a connecting shaft 5 of the rotational shaft 4 and the inner ring body 42, or the annular member 30 (130, 230) is provided with a displacement absorbing part 80 (180, 280, 580) absorbing decentering between the projected tube part 3 and the rotational shaft 4. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
