Linear motor device
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United States of America Patent
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Oct 22, 2019
Grant Date -
Oct 13, 2016
app pub date -
Dec 20, 2013
filing date -
Dec 20, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A linear motor device comprising: a path member including a magnet extending in a movement direction; and a moving body including a coil that is movably mounted on the path member; the linear motor device generates thrust in the movement direction between the magnet and the coil by current being passed through the coil; the moving body further includes a magnetic shielding target object, and a magnetic shielding member formed from strongly magnetic material that shields the magnetic shielding target. The magnetic shielding member includes a parallel shielding plate provided parallel to the movement direction between the magnetic shielding target object and the magnet, and a perpendicular shielding plate provided extending away from the magnet in a direction perpendicular to the movement direction at at least one of a front edge and a rear edge of the parallel shielding plate in the movement direction.
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