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EP0042761A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Rubber vibration isolator

Assignee: Bridgestone Corp
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Filing: 1981-06-23
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Granted: —
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Expires: 2001-06-23
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Abstract

Abstract A rubber vibration isolator comprises a pair of upper and lower liquid-containing chambers (R,, R 2 ) capable of undergoing change in their volumes by elastic deformation of an annular rubber elastomer (5,6) upon longitudinal vibration, and a restricted passage (7) providing communication between these chambers, wherein at least two further liquid-containing chambers (R 3 ,R 4 ) capable of undergoing change in their volumes upon lateral vibration are formed in the outer periphery of the rubber elastomer and communicate with each other through another restricted passage (9).

Inventors

  • 👤 Takuya Dan
  • 👤 Akio Fujita

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-03 00:52
CPC Classifications
F; F16; F16F; F16F13/00; F16F13/04; F16F13/06; F16F13/08; F16F13/18

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 93 words
A rubber vibration isolator comprising a pair of upper and lower liquid-containing chambers (R 1 , R 2 ) capable of undergoing change in their volumes by elastic deformation of an annular rubber elastomer (5,6) upon longitudinal vibration, and a restricted passage (7) providing communication between the said chambers, characterized in that at least two further liquid-containing chambers (R 3 , R4) capable of undergoing change in their volumes upon lateral vibration are formed in the outer periphery of the said rubber elastomer and communicate with each other through another restricted passage (9).
Claim 2
Dependent Claim 93 words
A rubber vibration isolator comprising a pair of upper and lower liquid-containing chambers (R 1 , R 2 ) capable of undergoing change in their volumes by elastic deformation of an annular rubber elastomer (5,6) upon longitudinal vibration, and a restricted passage (7) providing communication between the said chambers, characterized in that at least two further liquid-containing chambers (R 3 , R4) capable of undergoing change in their volumes upon lateral vibration are formed in the outer periphery of the said rubber elastomer and communicate with each other through another restricted passage (9).
Claim 3
Dependent Claim 22 words
A rubber vibration isolator as claimed in claim 1, characterized in that the said liquid-containing chambers are filled with an incompressible liquid.
Claim 4
Dependent Claim 25 words
A rubber vibration isolator as claimed in claim 1 or 2, characterized in that the said liquid-containing chambers communicate with each other through restricted passages.

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