FLUID-SEALED ANTI-VIBRATION DEVICE

PROBLEM TO BE SOLVED: To provide a fluid-sealed anti-vibration device of a new structure capable of selectively changing over an anti-vibration characteristic in response to input vibration without requiring an external negative pressure source, an actuator or the like.SOLUTION: A through-hole 68 is...

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Bibliographische Detailangaben
Hauptverfasser:	SAEKI AKIO, OGAWA YUICHI, SHIMIZU YORISHIGE, ISHIKAWA RYOTA
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MEANS FOR DAMPING VIBRATION MECHANICAL ENGINEERING PERFORMING OPERATIONS SHOCK-ABSORBERS SPRINGS THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fluid-sealed anti-vibration device of a new structure capable of selectively changing over an anti-vibration characteristic in response to input vibration without requiring an external negative pressure source, an actuator or the like.SOLUTION: A through-hole 68 is formed on a movable rubber membrane 48 to be elastically deformed based on a pressure difference between a pressure reception chamber 42 and an equilibrium chamber 44. In addition, a valve piece 70 for covering and closing the through-hole 68 based on elastic deformation in at least one-side opening part of the through-hole 68 is formed integrally with the movable rubber membrane 48.