| 摘要 |
PROBLEM TO BE SOLVED: To provide a linear actuator that can obtain stable fixing strength, and is compact and excellent in dismantlability and provided with coils and a permanent magnet fixing means. SOLUTION: The linear actuator comprises a latch plate 35 that fixes a coil 22 on a yoke 21 (laminated core), and the latch plate 35 comprises a retaining plate 38 that fixes permanent magnets 24 on the yoke 21 by elastic force. Specifically, the linear actuator is so constituted that the retaining portion 38 producing elastic force by bending is formed on one edge of the latch plate 35. The yoke 21 is provided with a groove 30a in which the other portion of the edge is fit, and a groove 30b in which the other edge of the latch plate 35 is fit. When the latch plate 35 is fit into the grooves 30a and 30b formed in the yoke 21, it fixes the coils 22 on the yoke 21, and the retaining portion 38 is bent and presses the permanent magnets 24 against the yoke 21. COPYRIGHT: (C)2005,JPO&NCIPI
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