| 摘要 |
PURPOSE:To alleviate the shock of hit by a movable plunger against a stator yoke and to secure a constant gap between them when energized by holding an elastic member between these yokes. CONSTITUTION:A coil 1 which is hold by a holder 3 forming a magnetic circuit is wound on a cylindrical bobbin 2. To the rear part of a circular hole 2a of said cylindrical bobbin 2, the holder 3 is engaged and fixed. Through a small hole of said holder 3, a stator yoke 4 is fixed. In a conical projection part 4c of said stator yoke 4, a ring-form elastic member 5 made of silicone rubber and etc., is set. When this coil 1 is energized electrically, a plunger yoke 6 set in front of the circular hole 2a is moved and the member 5 is pinched and held by the yokes 4 and 6. Thus, the hit shock of both yokes can be alleviated and a noise is not produced. Also, an interval between the stator yoke and the plunger yoke is made constant by the elastic member without changing a shape, size, and etc., so that its quick operation can be improved. |
