| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electric actuator which ensures the reliability of apparatus driving and achieves the simplification and the downsizing of the structure, which suppresses the increase of the weight and the costs and prevents partial failure from causing limitations on the overall operation. <P>SOLUTION: A first electric motor 11 generates rotation driving torque transmitted to a first screw 23 and displaces a first output part 19 relative to a housing 13. A first nut runner 24 is integrally provided with the first output part 19, and the first screw 23 is installed so as to be locked by a first lock mechanism 16. A second screw 26 is fixed to a second output part 20 and a second nut runner 27 is installed so as to be locked by a second lock mechanism 17. The first screw 23 and the second screw 26 are installed on the same axis line. An end part of the second screw 26 is inserted into the inner side of a cylinder portion of the first screw 23 having a gap therebetween. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
