Gas spring device, and balancer device and actuator which use gas spring device
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United States of America Patent
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Aug 15, 2017
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app pub date -
Apr 29, 2014
filing date -
Jul 18, 2012
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Abstract
A gas spring device includes a gas spring which generates a force proportional to a differential pressure between an inner space pressure and an atmospheric pressure, a suction/discharge part which can adjust a gas amount in the gas spring inner space, a rotary body which is connected to the gas spring, to which a torque due to the force generated by the spring is applied, a displacement part which is connected to the rotary body, and is displaced in conjunction with a rotary body rotary movement, a speed change part which is arranged in one of or both of between the rotary body and the displacement part and between the gas spring and the rotary body, and a torque compensating part which sets the torque applied to the rotary body to substantially 0 when the inner space gas amount of the gas spring is at a predetermined value.
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