초록 ▼

This clutch device has a first cam mechanism and a second cam mechanism disposed on a relatively rotatable a pair of members. When the first cam mechanism is pushed by a piston to one of the pair of members rotating in a direction, the first cam mechanism generates a thrust force corresponding to an

This clutch device has a first cam mechanism and a second cam mechanism disposed on a relatively rotatable a pair of members. When the first cam mechanism is pushed by a piston to one of the pair of members rotating in a direction, the first cam mechanism generates a thrust force corresponding to an input torque and thereby the relatively rotating members are engaged. When the second cam mechanism is pushed by a piston to one of the pair of members rotating in a reverse direction, the second cam mechanism generates a thrust force corresponding to the pushing force of the piston, and thereby the relatively rotating members are engaged. A return spring giving a biasing force to separate the second cam member from the one of relatively rotating member is designed not to reduce the thrust force generated by the first cam member during the action of the first cam mechanism.

대표청구항 ▼

A clutch device comprising: a pair of members disposed at a distance on a common axis and relatively rotating to each other around said common axis; a cam mechanism disposed on said common axis and composed of a first cam mechanism and a second cam mechanism, said first cam mechanism being composed

A clutch device comprising: a pair of members disposed at a distance on a common axis and relatively rotating to each other around said common axis; a cam mechanism disposed on said common axis and composed of a first cam mechanism and a second cam mechanism, said first cam mechanism being composed of a pair of cam members and generating an axial thrust force corresponding to rotational torque in order to engage said pair of members after being pushed by a pushing means to one of said pair of members rotating in a direction and thereby causing a frictional engagement of one of said pair of cam members with said one of said pair of members rotating in said direction, and said second cam mechanism being composed of a pair of cam members and generating an axial thrust force corresponding to a pushing force of said pushing means in order to engage said pair of members after being pushed by said pushing means to one said pair of members rotating in a direction reverse to said direction in which said first cam mechanism generates said axial thrust force corresponding to rotational torque and thereby causing a frictional engagement of one of said pair of cam members with said one of said pair of members rotating in said reverse direction, a biasing means for supplying a biasing force acting on said cam mechanism in a direction contrary to a direction of said pushing force of said pushing means, wherein said axial thrust force generated by said first cam mechanism is kept free from being weakened by said biasing force supplied by said biasing means.