ELECTROMAGNETIC ACTUATOR, AND ACTIVE VIBRATION DAMPER AND FLUID-FILLED ACTIVE VIBRATION DAMPING DEVICE USING THE SAME
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United States of America Patent
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Issued Date -
Jul 16, 2015
app pub date -
Dec 3, 2014
filing date -
Jan 10, 2014
priority date (Note) -
Abandoned
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Abstract
An electromagnetic actuator including a plate spring elastically coupling a stator and a mover. The plate spring includes an outer circumference attachment part and a center attachment part respectively attached to one and another of the stator and the mover. A plurality of spiral-shaped connection arm parts are provided at equal intervals in a circumferential direction radially between the outer circumference attachment part and the center attachment part. A direction recognizer is provided such that an orientation of the plate spring in the circumferential direction is recognizable from outside. The direction recognizer arranges the plate spring such that connection sites of the connection arm parts to the center attachment part and the outer circumference attachment part are circumferentially separated from at least one of input directions of a main load and a maximum load in a radial direction.
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