Antivibration rubber device

Details Antivibration rubber device Antivibration rubber device

1997-12-24

1999-10-19

Schwartz, Chris

Spring devices

Resilient shock or vibration absorber

Including energy absorbing means or feature

248562, 267219, F16F 500

Patent

active

059675004

ABSTRACT:
An orifice plate is projectingly provided within a fluid chamber formed inside an elastic block to damp the medium to high frequency vibrations. The orifice plate 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 at a bottom thereof which traverses in the same direction (as the direction X). 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 which perform the displacement control in the direction X. In another embodiment, the stoppers are asymmetrically shaped.

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