PURPOSE: To reduce the size of a device to a relatively low value and to enable fine and rapid execution of response, by providing a torque generating mechanism, converting electric energy to torque, and a torque-thrust force converting mechanism, converting torque of a screw mechanism, a cam mechanism, etc., into a thrust force with the increase in a force.
CONSTITUTION: When, based on signals from sensors, detecting a throttle opening, a running speed, etc., a proper electric signal is outputted from a control part, according to the signals, electric energy is converted into torque by means of a torque generating mechanism. The torque is converted into a thrust force by means of a torque-thrust force converting mechanism, and further, the thrust force causes engagement or disengagement of a friction engaging device through a friction engaging press mechanism. In this case, through location of a torque increasing mechanism between the torque generating mechanism and the torque- thrust force converting mechanism, a thrust force is produced. Namely, the engaging force of the friction engaging device can be controlled directly by means of electricity, control is facilitated, and response is improved.
FUKAYA TAKAHARU
JPS3924911Y1 | 1964-08-26 | |||
JPS5820812A | 1983-02-07 |