| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an actuator which is capable of suppressing inertia load increase caused by inertia rotor rotation. <P>SOLUTION: An actuator comprises a motor, a mechanism to be driven, and a ball screw mechanism. The motor includes an exciting coil which is wound around an armature core, a permanent magnet member which is magnetized while varying its position relatively to the armature core, a rotary shaft which is rotated together with any one of the armature core and the permanent magnet member rotated by electrification of the exciting coil, and a brake coil which applies force inverse to a rotating direction to either the armature core or the permanent magnet member which is rotating, and is wound around the armature core and connected annularly. The ball screw mechanism transmits rotations from the rotary shaft to the mechanism to be driven as linear motion. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
