| 摘要 |
PURPOSE:To improve the residual magnetic characteristic while to lower the height of an adsorbing face plate by employing a permanent magnet having high coercive force while directing the magnetic pole of permanent magnet at the slidable section perpendicular with the adsorbing face plate assembled with a fixed permanent magnet. CONSTITUTION:Pole chips 11a made of soft steel and permanent magnets 12 having high coercive force are laminated alternatively while end pole chips 11b are secured to the opposite ends and a polarization member 13 is burried at the upper portion of magnet 12 to constitute an adsorbing face plate. The permenent magnets 12 are arranged while directing the magnetic pole in the horizontal direction to face same poles of adjoining magnets each other. A slidable magnet element composed of a slidable frame 14 and a permanent magnet 15 having high coercive force is fixed to the lower face of the absorbing face plate slidably in the laminating direction of the permanent magnet 12 on the adsorbing face plate. The permanent magnet 15 is arranged with same pitch with the lamination pitch of the permanent magnet 12 and pole chip 11a to direct the magnetic pole perpendicular with the adsorbing face thus to provide different poles alternatively on the face contacting with the absorbing face.
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