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A vibration insulating device to be installed between two members of a vibration system of an automotive vehicle. The device consists of an annular elastic member disposed between coaxial inner and outer cylindrical members and located coaxial with the outer cylindrical member. The elastic member is

A vibration insulating device to be installed between two members of a vibration system of an automotive vehicle. The device consists of an annular elastic member disposed between coaxial inner and outer cylindrical members and located coaxial with the outer cylindrical member. The elastic member is formed at its outer peripheral surface with a deep annular groove coaxial with the outer cylindrical member which groove is covered with the outer cylindrical member to define an annular hollow chamber. A generally cylindrical flexible diaphragm member is secured between the outer cylindrical member and the elastic member in such a manner that its central annular section divides the hollow chamber into a radially outward gas chamber and a radially inward liquid chamber, thereby effectively absorbing even high frequency small amplitude vibration transmitted to the device under deformation of the flexible diaphragm member.

대표청구항 ▼

A vibration insulating device comprising: an inner cylindrical member; an outer cylindrical member disposed generally coaxially around said inner cylindrical member; an annular elastic member disposed between said inner and outer cylindrical members and securely connected to said inner and outer cyl

A vibration insulating device comprising: an inner cylindrical member; an outer cylindrical member disposed generally coaxially around said inner cylindrical member; an annular elastic member disposed between said inner and outer cylindrical members and securely connected to said inner and outer cylindrical members, respectively, said annular elastic member being generally coaxial with said inner cylindrical member; means defining an annular hollow chamber between said inner and outer cylindrical members, said annular hollow chamber being generally coaxial with said inner cylindrical member, at least a part of said annular hollow chamber being defined by said annular elastic member; an annular flexible diaphragm member at least a part of which is disposed within said hollow chamber to define, within said hollow chamber, an annular liquid chamber filled with a liquid and an annular gas chamber filled with a gas, said flexible diaphragm member, said liquid chamber, and said gas chamber being generally coaxial with said outer cylindrical member, each of said liquid and gas chambers extending throughout a periphery of said annular elastic member and being effective for vibrations in all radial directions.