Connecting system

F - Mech Eng,Light,Heat,Weapons – 16 – H

Patent

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Details

F16H 48/20 (2006.01) F16D 21/08 (2006.01) F16D 27/115 (2006.01) F16D 43/21 (2006.01)

Patent

CA 2116411

A connecting system which includes a pilot clutch brought into an engaged state by an actuator, a cam member operated by an engaging force of the pilot clutch, an urging member driven and moved by the cam member, and a main clutch brought into an engaged state by a movement of the urging member. The cam member includes a first cam ring restrained by the pilot clutch, a second cam ring provided on the urging member, and rolling members interposed the first and second cam rings for converting the relative rotation of the cam rings into a thrust. The system further includes a biasing member for biasing the urging member and the first cam ring in a direction of abutment against each other in order to generate a frictional force between the urging member and the first cam ring. Thus, it is possible to prevent the engaging force of the main clutch from being influenced by a drag torque produced in the pilot clutch.

ystème de raccordement qui comprend un embrayage pilote amené par un actionneur en position engagée, une came actionnée par la force d'engagement de l'embrayage pilote, un organe d'attaque entraîné et déplacé par la came, et un embrayage principal amené en position engagée par un déplacement de l'organe d'attaque. La came comprend un premier excentrique retenu par l'embrayage pilote, un deuxième excentrique posé sur l'organe d'attaque et des pièces roulantes interposées entre le premier et le deuxième excentrique pour convertir la rotation relative des excentriques en poussée. Le système comprend aussi une pièce de dérive pour amener l'organe d'attaque et le premier excentrique en aboutement de manière à provoquer une force de friction entre eux. Il est ainsi possible de soustraire la force d'engagement de l'embrayage principal à l'effet du couple d'entraînement produit dans l'embrayage pilote.

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