| 摘要 |
PURPOSE:To cancel each other of sucking force working between a magnetic piece and an armature and to obtain an easy support by a method wherein a magnetic piece sucking material, holding a permanent magnet between two soft magnetic plates, is provided on the reverse side of the opposite surface on an armature of a magnetic piece with tooth sections. CONSTITUTION:A tooth section 3 is provided on the lower surface of a narrow- stripped magnetic piece 1 and an armature 7, having a tooth section 8 and a magnetic piece 5 to be excited by a coil 6, is arranged on the opposite side of the tooth section 3. Also a tooth section extending to longitudinal direction is formed on the upper surface of the magnetic piece 1. And, on the upper surface of a support 15 of a nonmagnetic substance block 14 fixed on both ends of the armature 7, a magnetic piece sucking material 22, consisted of soft magnetic materials 16 and 17 holding a permanent magnet 18, is fixed and a tooth section 20 formed on the lower sourface of the soft magnetic materials 16 and 17 is opposed to a magnetic piece 11 in such way that they are intersecting. Thus, due to the sucking force of the magnetic piece sucking material 22 and the magnetic piece 1, the sucking force of the armature 7 and the magnetic piece 1 is cancelled each other and a relative support of the armature 7 and the magnetic piece 1 can be obtained easily. |
