| 摘要 |
Disclosed is a rotation transmission device that controls, by an electromagnetic clutch, the engagement/disengagement of a bidirectional clutch that transmits/interrupts rotation between an input shaft and an output shaft. A spring holder (50) fitted onto the input shaft (1) prevents a pair of rollers (15) from shifting/moving in the axial direction. An engagement surface (53) that comes into surface engagement with a cam surface (14) on the outer periphery of an inner race is provided to a spring holding piece (52) provided on the spring holder (50), and serves to prevent the spring holder (50) from rotating. Thus, it is unnecessary to process the input shaft (1) to prevent the spring holder from rotating, and cost reduction can be achieved. |
