To stabilize the posture (position) of a roller by a simple means.
The reverse input shutting-off clutch is constituted in such a way that: an input shaft 2 in which rotation torque is inputted, and an output shaft 3 for outputting rotation torque are stored in a fixed outer ring 1 whose rotation is restrained so as to rotate forward, freely reversely; a plurality of pairs of rollers 10a, 10b are provided between the fixed outer ring 1 and the output shaft 3 so as to engage and disengage; a plate spring 12 for energizing the rollers 10a, 10b on both sides in the direction for engaging them with the fixed outer ring 1 and the output shaft 3, respectively, is arranged between each pair of rollers 10a, 10b, the output shaft 3 is locked for reversely inputted torque from the output shaft 3 by engagement/disengagement of the rollers 10a, 10b; and a locked condition is released for input torque from the input shaft 2 to transmit the input torque to the output shaft 3. Restraining parts 12a
COPYRIGHT: (C)2007,JPO&INPIT
IKEDA YOSHINORI
Hideka Tanaka
Yoshiyuki Shiraishi
Kunihiko Shiromura
Tsuyoshi Kumano
Hiroaki Yamane
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