| 摘要 |
<p>In a prior art linear motor, a large burden is applied to the supporting mechanism of a moving member because magnetic attraction acts in one direction between the armature and the moving member and the structure is distorted to cause various troubles. Furthermore, protection of the surface of a permanent magnet is difficult. In the inventive linear motor, a stator having an armature winding and a moving member having a permanent magnet are arranged to move relatively, characterized in that the stator of the linear motor uses the ringlike core, the armature teeth, and the armature winding to constitute a magnetic circuit, a slit groove is arranged in the armature teeth opposing the front surface and the rear surface of the permanent magnet of the moving member through an air gap, and a member having a travelable protrusion member and an internal hollow portion is provided along the slit groove of the armature teeth, and a plurality of permanent magnets are arranged in the hollow portion such that magnetic poles adjoining along the traveling direction have different polarities.</p> |
