US 2002/0117790 A1Published application

Engine mount

AssigneeToyo Tire & Rubber Co., Ltd.

InventorsKentaro Yamamoto, Hironori Kato, Tsuyoshi Inada

Life of this patent

Estimating the term…

Loading patent…

Abstract

An engine mount has a stopper rubber portion constituted of an outer peripheral flange protruding radially outwardly from the engine side metal fitting and a coating rubber covering an outer periphery of said outer peripheral flange. A radius of curvature of contact parts positioned at one direction of two radial directions orthogonal to each other in a radial plane substantially equals to a radius of curvature of an inner periphery of the body side metal fitting and a thickness of the coating rubber positioned in said one direction is constant in a circumferential direction thereof, whereby the contact parts positioned in said one direction are widely brought into contact with the inner periphery of the body side metal fitting and distorted uniformly. The distortion of the stopper rubber portion is also made uniform when applying a load thereto.

Claims12

Dependent claims

An engine mount comprising a cylindrical body side metal fitting secured to a vehicle body, an engine side metal fitting secured to an engine, a vibration isolating base body made of an elastic rubber body interposed between the two metal fittings and a stopper rubber portion substantially in a disc shape protruding radially outwardly from the engine side metal fitting and disposed substantially concentrically with and spaced from the body side metal fitting, said stopper rubber portion being arranged in such a manner that a center of curvature of an outer periphery positioned at one direction of two radial directions orthogonal to each other in a radial plane being displaced from a center of curvature of an inner periphery of the body side metal fitting to said one direction and a radius of curvature of said outer periphery being arranged to be larger than a radius of curvature of an imaginary circle passing through a single point of the outer periphery of the stopper rubber portion concentrically with the inner periphery of the body side metal fitting and equal to or smaller than a radius of curvature of the inner periphery of the body side metal fitting, so that contact parts contacting with the body side metal fitting in said one direction of two radial directions orthogonal to each other are widely brought into contact with the body side metal fitting.

An engine mount comprising a cylindrical body side metal fitting secured to a vehicle body, an engine side metal fitting secured to an engine, a vibration isolating base body made of an elastic rubber body interposed between the two metal fittings and a stopper rubber portion substantially in a disc shape protruding radially outwardly from the engine side metal fitting and disposed substantially concentrically with and spaced from the body side metal fitting, said stopper rubber portion being arranged in such a manner that a center of curvature of an outer periphery positioned at one direction of two radial directions orthogonal to each other in a radial plane being displaced from a center of curvature of an inner periphery of the body side metal fitting to said one direction and a radius of curvature of said outer periphery being arranged to be substantially equal to a radius of curvature of the inner periphery of the body side metal fitting, so that contact parts contacting with the body side metal fitting in said one direction of two radial directions orthogonal to each other is widely brought into contact with the body side metal fitting.

Dependencies are inferred from the claim text.