Vibration absorbing unit
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United States of America Patent
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N/A
Issued Date -
Jun 19, 2003
app pub date -
Nov 21, 2002
filing date -
Dec 13, 2001
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A vibration absorbing unit comprises: a casing 1 having a piston 3 which reciprocates and vibrates, a first fixed member 5 and a second fixed member 7 provided substantially orthogonal to a vibration direction Y of the piston 3, one weight 8 provided between the fixed members 5 and 7 so as to be substantially coaxial with the center of vibration of the piston 3, and a coil spring mechanism 12 fitted substantially parallel with the direction Y for suspending the weight 8 between the members 5 and 7. These components are provided inside the casing 1. In accordance with the vibration of the reciprocating piston 3, the weight 8 suspended by the coil spring mechanism 12 resonates inside the casing 1 with the vibration of the piston 3, so that the vibration transmitted to the casing 1 can be absorbed, and also the casing 1 can be made small.
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