| 摘要 |
A plate ( 13 (e)), the outer diameter side of which is fixed to be integral with a plate section ( 13 c), and which is provided with an engagement part ( 13 g) to be engaged with a shoulder ( 13 f) formed on the inner diameter side of a boss section ( 13 a), is integral with a center hub ( 13 ). Thereby, even if a bridge section ( 13 d) is broken and the plate section ( 3 c) moves in the detachment direction of the center hub ( 13 ), the engagement part ( 13 g) of the plate ( 13 e) is engaged with the shoulder ( 13 f) of the boss section ( 13 a), whereby the plate section ( 13 c) and the boss section (13a) are engaged and coupled with each other while interrupting the torque transmission. Accordingly, even if the bridge section ( 13 d) is broken, the boss section ( 13 a) as well as the plate section ( 13 c) side are prevented from being detached from a pulley ( 10 ). |
