Liquid-sealed vibration-damping device
AssigneeYamashita Rubber Kabushiki Kaisha
InventorHirokazu Kadowaki
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Abstract
The present invention provides a liquid-sealed vibration-damping device capable of improving damping performance while preventing increase in size and weight thereof, the liquid-sealed vibration-damping device including: a first attachment member; a second attachment member; an insulator; a vibration-damping unit having a partition member; and a housing space provided in the second attachment member and housing the vibration-damping unit, wherein the second attachment member includes an outer tubular part and a fixing part protruding from the outer tubular part; and a portion of the housing space extends to the fixing part.
Claims3
A liquid-sealed vibration-damping device comprising:
- a first attachment member;
- a second attachment member;
- an insulator connecting the first attachment member with the second attachment member;
- a liquid chamber formed to include an inner space of the insulator, wherein hydraulic liquid is sealed in the liquid chamber;
- a vibration-damping unit provided with a partition member partitioning the liquid chamber into a primary liquid chamber and a secondary liquid chamber;
- and
- a housing space provided in the second attachment member and housing the vibration-damping unit, wherein
- the second attachment member comprises:
- an outer tubular part, wherein the insulator is directly fixed to the outer tubular part and wherein a top of the liquid chamber includes a top of the inner space of the insulator and extends over an upper surface of a top of the outer tubular part;
- and
- a fixing part including an inclined portion extending outward and downward from a vertical outer surface of the outer tubular part, wherein
- a portion of the housing space enters inside the inclined portion to extend outward beyond the vertical outer surface of the outer tubular part, and
- thereby an overall length of the housing space in an outward direction in which the inclined portion extends is longer than an overall inner length of the outer tubular part, and
- wherein
- the vibration-damping unit includes an orifice passage communicating the primary liquid chamber with the secondary liquid chamber;
- and
- a portion of the orifice passage is disposed in the portion of the housing space extending to the fixing part.
Dependencies are inferred from the claim text.