Fluid-filled resilient bushing
AssigneeTokai Rubber Industries, Ltd.
InventorKeizo Konishi
Life of this patent
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Abstract
A fluid-filled resilient bushing structure having a resilient member interposed between an inner sleeve and an outer sleeve disposed radially outwardly of the inner sleeve. The resilient member has portions in which are formed plural fluid chambers which are filled with an incompressible fluid and held in communication with each other through an orifice. The resilient bushing structure comprises a non-fixed independent radial stop member of a rigid material accommodated in at least one of the plural fluid chambers and movable in this at least one fluid chamber. The radial stop member is abuttable on surfaces defining the at least one fluid chamber, thereby preventing an excessive displacement of the inner and outer sleeves relative to each other in a radial direction thereof.
Claims11
A fluid-filled resilient bushing structure wherein a resilient member is interposed between an inner sleeve and an outer sleeve disposed radially outwardly of the inner sleeve with a predetermined radial distance therebetween, said resilient member having portions at least partially defining plural fluid chambers which are filled with an incompressible fluid and held in communication with each other through an orifice, said resilient bushing structure comprising:
- a movable radial stop member of a rigid material accommodated in at least one of said plural fluid chambers and movable relative to a pair of circumferential surfaces which partially define said at least one fluid chamber and which are opposed to each other in a radial direction of said inner and outer sleeves, said radial stop member being abuttable on said circumferential surfaces, and thereby preventing an excessive displacement of said inner and outer sleeves relative to each other in the radial direction thereof perpendicular to axes of the inner and outer sleeves.
Dependencies are inferred from the claim text.