Antivibration rubber device
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United States of America Patent
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-
Jun 30, 1998
Issued Date -
N/A
app pub date -
Aug 4, 1997
filing date -
Jun 15, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An orifice plate 20 is projectingly provided within a fluid chamber formed inside an elastic block to damp the medium to high frequency vibrations. The orifice plate 20 is arranged to have a projection area which is maximum in the principal input direction Z of vibrations to be isolated, medium in the direction Y of the two input directions X and Y which are perpendicular to the direction Z, and minimum in the direction X by providing a recess 26 at a bottom thereof which traverses in the same direction (as the direction X), whereby the resonance frequency is high in the direction Y and the circumferential edge portions of the projection surface in the direction Y are adapted to serve as stoppers 25 which perform the displacement control in the direction X.
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Cited Art Landscape
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