| 摘要 |
PURPOSE:To simplify construction, by restricting vibrations of a damper means in directions substantially orthogonal to the oscillating directions of an oscillating member. CONSTITUTION:An armature-pressing spring 31 is disposed between a metallic stopper member 28 and a damper 32, and is fixed to a sub-body 24 by a small screw 33 through the damper 32. The damper 32 absorbs an impact sound generated at the time of impact of an armataure lever 23 against a stopper 27. A damper-pressing spring 34 is disposed on the damper 32 to press the damper 32 with a moderate pressure. A rear cover 5 is provided with a ring form damper support part 5A projected from a central part thereof. The support part 5A is fitted into an opening formed in a metallic stopper 28, and absorbs vibrations of the damper 32 in directions orthogonal to the moving directions of the lever 23. Thus, an extremely simply construction is obtained. |
