| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an actuator that allows improvement in installability without deteriorating accuracy. <P>SOLUTION: An actuator includes a stopper 31 provided in a case 11 in a protruding manner; an engagement protrusion 32 provided in a worm wheel 15 in a protruding manner and brought into contact with the stopper 31 to regulate rotary movement of the worm wheel 15 at a prescribed initial position; and a torsion coil spring 33 housed in the case 11, having a first leg 33b engaged with the stopper 31 and a second leg 33c engaged with the engagement protrusion 32 on the outer side in its protruding direction with respect to the stopper 31, and urging the worm wheel 15 to rotate in the direction in which the engagement protrusion 32 is brought into contact with the stopper 31. <P>COPYRIGHT: (C)2013,JPO&INPIT |
