Clutch and drive device having the clutch

Details Clutch and drive device having the clutch Clutch and drive device having the clutch

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 41/06 (2006.01) B60J 1/17 (2006.01) E05F 15/16 (2006.01) F16D 41/066 (2006.01) F16D 41/10 (2006.01) F16D 43/02 (2006.01) F16H 1/16 (2006.01) H02K 7/116 (2006.01) E05F 11/50 (2006.01) H02K 7/10 (2006.01)

Patent

CA 2338575

A clutch comprises a driving rotor (11; 52; 83; 202; 302) coupled to a driving source (2) such as a motor, and a driven rotor (12; 53; 85; 204; 303) directly engaged with the driving rotor. Both rotors are accommodated in a housing (13; 51; 82; 201; 301). A lock member (14; 54; 86; 119; 205; 304) comprised of rollers or balls is located between the driven rotor and the housing. When the driven rotor itself is rotated, the lock member is held between the driven rotor and the housing to block the rotation of the driven rotor relative to the housing. When the driving source rotates the driving rotor, the lock member is released from the held state to allow the driving rotor to rotate the driven rotor relative to the housing. Such a clutch can block the transmission of the rotation from the driven rotor to the driving rotor without fail, and can reduce the strength required to both rotors.

On décrit un embrayage comprenant des pièces rotatives menantes (11; 52; 83; 202; 302) connectées à une source d'excitation (2), telle qu'un moteur, et des pièces rotatives menées (12; 53; 85; 204; 303) en contact direct avec les pièces rotatives menantes. Chacun des deux types de pièces rotatives est logé dans un boîtier (13; 51; 82; 201; 304) et des éléments de verrouillage (14; 54; 86; 119; 205; 304) munis de galets et de billes sont disposés entre les pièces rotatives menées et les boîtiers. Lorsque les pièces rotatives menées sont en rotation, les éléments de verrouillage sont retenus entre les pièces rotatives menées et les boîtiers, ce qui empêche une rotation des pièces rotatives menées relativement aux boîtiers. Lorsque la source d'excitation impulse les pièces rotatives menantes, les éléments de verrouillage se remettent à l'état initial de retenue pour amener les pièces rotatives menantes à faire tourner les pièces rotatives menées relativement aux boîtiers, si bien que l'embrayage empêche de manière sûre une transmission de rotation des pièces rotatives menées aux pièces rotatives menantes, ce qui permet en outre de réduire la puissance requise pour entraîner les deux types de pièces.

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