| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an actuator for a brake device capable of being applied in both of a parking brake device and a brake device for adjusting a car speed though it has a simple constitution. <P>SOLUTION: When a vehicle is stopped, and a driver pulls out a main key, a nut 10 is allowed to be axially pressed by energizing force of a coil spring 14 even in such a state that a main power source is off, thus a state in which the brake device 20 brakes wheels not shown in the figure, can be kept. As a parking brake is automatically operated by energizing force of the coil spring 14 after the main key is pulled out without particular awareness by the driver, a trouble that the vehicle moves in an unmanned state after being parked on a sloping road, can be prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
