| 主权项 |
1. A linear motor comprising:
a stator including an armature, the armature including a core and coils, the core including a plurality of teeth arranged in a first direction, the coils being attached respectively to the teeth of the core; a mover including a shaft-like member extending in the first direction and having an opposed surface opposed to the armature and a field magneton made of a plurality of permanent magnets fixed in a state in which the plurality of permanent magnets are arrayed in the first direction on the opposed surface of the shaft-like member such that magnetic poles of the magnets on a side of the armature are alternately different; a frame member configured to support the stator; and a retaining member configured to retain the shaft-like member movably in a longitudinal direction thereof such that the mover is movable in the first direction with respect to the stator, the retaining member being fixed to the frame member, wherein the shaft-like member and the retaining member are configured by a guide device including a rail made of a magnetic material and a slider relatively movably supported along the rail, the slider is fixed to the frame member as the retaining member and the plurality of permanent magnets are fixed to the rail as the shaft-like member, and the stator, the mover, and the retaining member are arrayed in a row in a direction opposing the armature and the permanent magnets. |
