STRUCTURE OF VIBRATION ACTUATOR
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United States of America Patent
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N/A
Issued Date -
Jul 5, 2012
app pub date -
Jun 30, 2010
filing date -
Jul 1, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Provided is a vibration actuator the amplitude of which is increased without reducing the number and width of arms, even in a structure that supports a magnetic circuit section by a single suspension. Both increased amplitude and stabilized vibrating properties are achieved by using a structure in which the middle part of each arm of a suspension is provided with a bent portion in the planar direction, and the metal fatigue of the suspension produced when vibrating is reduced by incorporating the suspension in a state in which the suspension is deformed in advance in an expansion/contraction direction (i.e. the vibrating direction of said magnetic circuit section). Additionally, these advantages, which extend the life of the whole component, allow the component to be environmentally friendly.
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