Slider unit with built-in moving-coil linear motor
AssigneeNippon Thompson Co., Ltd.
InventorsTakaaki Tsuboi, Norimitsu Kitade
Life of this patent
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Abstract
A slider unit having built in a moving-coil linear motor is incorporated in a linear motion guide unit having a track rail and a slide. The slider unit is made easy in mounting to the appliances or works. The linear motion guide unit has the track rail and the slider movable lengthwise of the track rail. A linear motor is arranged between any one of widthwise opposing side walls of the track rail and the slider, and composed of a stator comprising a magnet yoke and field magnets, and a moving-coil assembly held on a side edge of a mount of the slider. The linear motor is preferred to make compact or slim in construction the linear motion guide unit, in which the linear motor is incorporated, thus making the slider unit simple in construction.
Claims13
A slider unit with a built-in moving-coil linear motor;
- comprising a track rail supported on a bed and having a pair of side walls connected with one another, a slider mounted to a table to be moved with respect to the bed, the slider being movable in a lengthwise direction of the track rail in a sliding manner along a guide way defined between the side walls of the track rail, and a moving-coil linear motor providing a driving power to move the slider relatively of the track rail;
- wherein the moving-coil linear motor is composed of a magnet yoke having a pair of field magnets and held on an outside surface of at least one side wall of the track rail, and a moving-coil assembly held on the slider and arranged in an air gap between the confronting field magnets to come into electromagnetic interaction with the field magnets, thereby producing a force to move the assembly along the lengthwise direction of the track rail.
Dependencies are inferred from the claim text.