| US 7,579,935 B2 | ||
| Actuator | ||
| Masahiro Ohta, Wako (Japan); and Toru Sukigara, Wako (Japan) | ||
| Assigned to Honda Giken Kogyo Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jun. 12, 2008, as Appl. No. 12/157,764. | ||
| Application 12/157764 is a division of application No. 10/517465, granted, now 7,423,505, previously published as PCT/JP03/06928, filed on Jun. 02, 2003. | ||
| Claims priority of application No. 2002-163850 (JP), filed on Jun. 05, 2002. | ||
| Prior Publication US 2009/0002108 A1, Jan. 01, 2009 | ||
| Int. Cl. H01F 7/08 (2006.01) | ||
| U.S. Cl. 335—220 [335/222; 335/223; 335/229; 335/234; 335/266; 335/268; 335/274] | 16 Claims |
| 5. An actuator, comprising a pair of magnetic field generators, a movable member disposed between said magnetic field generators movably in an axial direction, a ring-shaped magnetic body provided in said movable member, a pair of resilient shape memory members each disposed between said movable member and each magnetic field generator, a frame for supporting said magnetic field generators, and a shaft fixed to said movable member and slidably supported by both ends of said frame, said magnetic field generators being energized to generate a magnetic attractive or repulsive force between said magnetic field generators and said magnetic body to move said movable member. |