| 摘要 |
<p>PURPOSE:To make it possible to operate the separation of an armature smoothly by forming rotary shafts with a non-magnetic substance, and generating no residual magnetism in the rotatary shafts when the current flow is stopped. CONSTITUTION:The first rotary shaft 20 is formed of a non-magnetic material and penetrated through the center penetrating hole 22 of an electromagnetic coil 16. The second rotary shaft 28 is also formed of a non-magnetic material. When the first rotary shaft is started to rotate, the force input to the second rotary shaft 28 is delivered to the mechanism installed to the first rotary shaft 20. When the current flow to the electromagnetic coil 16 is stopped, an armature 32 is separated from a bearing 14 by the elasticity of a coil spring 34. As a result, since the first and the second rotary shafts 20 and 28 have not been magnetized at all, no residual magnetism is generated, and the armature 32 can be separated smoothly.</p> |
