초록 ▼

A fluid-filled cylindrical elastic mount which includes radially spaced-apart inner and outer sleeves, and an elastic body interposed between the inner and outer sleeves for elastical connection thereof. The elastic body has diametrically opposite fluid chambers containing a highly viscous fluid, an

A fluid-filled cylindrical elastic mount which includes radially spaced-apart inner and outer sleeves, and an elastic body interposed between the inner and outer sleeves for elastical connection thereof. The elastic body has diametrically opposite fluid chambers containing a highly viscous fluid, and at least one fluid passage which communicates with the fluid chambers. The outer sleeve has at least one inlet through which the highly viscous fluid is injected into the mount. Each of the inlets is formed in a portion of the outer sleeve which defines the corresponding fluid passage, and is closed by a sealing member fixed to the outer sleeve. The elastic mount further includes a pair of restricting protrusions which are respectively formed in the fluid chambers to protrude from the inner sleeve toward the outer sleeve in radially opposite directions, such that each protrusion has a radial end face which cooperates with the outer sleeve to define a restricted portion which has a predetermined radial dimension.

대표청구항 ▼

A fluid-filled cylindrical elastic mount containing a highly viscous fluid, comprising: an inner sleeve and an outer sleeve which are radially spaced apart from each other; an elastic body interposed between said inner and outer sleeves, for elastically connecting the inner and outer sleeves, said e

A fluid-filled cylindrical elastic mount containing a highly viscous fluid, comprising: an inner sleeve and an outer sleeve which are radially spaced apart from each other; an elastic body interposed between said inner and outer sleeves, for elastically connecting the inner and outer sleeves, said elastic body having a pair of pockets formed on opposite sides of said inner sleeve and opposed to each other in one diametral direction of the mount in which a vibrational load is applied, said pockets being closed by said outer sleeve so as to provide a pair of fluid chambers which contain said highly viscous fluid, said elastic body further having at least one groove formed between corresponding circumferential ends of said pair of pockets; an intermediate sleeve interposed between said elastic body and said outer sleeve, and having a pair of windows aligned with said pair of pockets, respectively, said intermediate sleeve including at least one grooved portion formed between corresponding circumferential ends of said pair of windows, said at least one grooved portion being secured to a surface of said elastic body which defines said at least one groove, said at least one grooved portion being closed by said outer sleeve so as to provide a fluid passage which communicates with said pair of fluid chambers; said outer sleeve having at least one inlet through which said highly viscous fluid is injected into the mount, said at least one inlet being formed in a portion of the outer sleeve which cooperates with said at least one grooved portion of said intermediate sleeve to define said fluid passage, so that said at least one inlet is directly open to said fluid passage; a pair of restricting protrusions which are respectively formed in said pair of fluid chambers, so as to protrude from said inner sleeve toward said outer sleeve in radially opposite directions parallel to said one diametral direction, each of said restricting protrusions having a radial end face which cooperates with said outer sleeve to define a restricted portion which has a predetermined radial dimension; and at least one sealing member fixed to said outer sleeve for closing said at least one inlet.