Tokai Rubber Industries, Ltd.

Michio Ito

Shinji Miyakawa

Tsukasa Oshima

A soundproofing cover absorbs noises, produced by a vehicle. It is fastened to a plurality of vehicle-side installation portions, and includes a cover body, composed of a polymer foamed substance, and a plurality of brackets, held integrally to the cover body. The respective brackets have an installation portion and a holding portion. The installation portion is to be fastened to the vehicle-side installation portions. The holding portion is held and fastened integrally to the cover body. At least two of the installation portions constitute a datum bracket, connected by one of the holding portions shared commonly. The positioning accuracy can be improved in the installation of the soundproofing cover to the vehicle-side installation portions so that the installation operability can be upgraded. In addition, the increment of the weight can be kept minimum so that the lightweighting requirement can be satisfied.

Soundproofing cover for vehicle

An upper support for a suspension system manufactured by preparing a first intermediate product including an inner rigid member, a first outer rigid member and a first elastic body for elastically connecting the inner and first outer rigid members. The first intermediate product is then placed within a mass of a non-compressible fluid. A second elastic body and a resonance member are then assembled with the inner and first outer rigid members, so as to prepare a second intermediate product having a fluid chamber filled with the fluid and defined between the first and second elastic bodies. The second intermediate product is then removed from the mass of the non-compressible fluid, and a second outer rigid member having an attaching portion mounted, in the atmosphere on the second intermediate product.

Upper support for suspension system having two outer rigid members, and

A fluid-filled cylindrical elastic mount having an inner and an outer sleeve, a pair of intermediate support members axially opposed to each other and having respective cylindrical portions with a predetermined axial spacing therebetween, and an elastic body elastically connecting the inner sleeve and the support members. The elastic body cooperates with the inner sleeve to define an annular recess which is open radially outwardly through the axial spacing between the cylindrical portions of the support member. The outer sleeve is fitted on cylindrical portions of the support members, so as to close the annular recess to thereby form an annular fluid chamber. A spacer is interposed between the cylindrical portions of the support members, to prevent a relative axial movement of the support members toward each other and thereby maintain the predetermined axial spacing between the cylindrical portions.

Fluid-filled cylindrical elastic mount having axially extending legs for

A fluid-filled cylindrical elastic mount including an inner sleeve, an outer sleeve, at least one elastic body disposed between these sleeves for flexible connection therebetween. The elastic mount has at least one fluid chamber extending in a circumferential direction of the mount between the two sleeves. The elastic mount further includes a wing member fixed to one of the inner and outer sleeves so as to protrude toward the other sleeve. Each fluid chamber is divided by the wing member into two axially opposite sections. Between a radial end face of the wing member and an inner wall of each fluid chamber is defined a restricted fluid passage which has a predetermined radial dimension and communicates with the two sections. The elastic mount has at least one rigid protrusion protruding radially from the other sleeve by a radial distance which is larger than the predetermined radial dimension of the restricted fluid passage. The rigid protrusion(s) defines at least one of axially opposite ends of at least a radial portion of the fluid chamber(s), which ends are opposed to each other in an axial direction of the mount.

Fluid-filled cylindrical elastic mount having rigid protrusion axially

An upper support for a suspension system, having an inner and an outer rigid member, at least one generally annular elastic body interposed between the inner and outer rigid members for elastic connection therebetween, and which defines a generally annular fluid chamber that is filled with a non-compressible fluid. The upper support also includes an annular resonance member which is accommodated in the fluid chamber, and which is supported by one of the inner and outer rigid members so as to radially extend toward the other rigid member, so that the fluid chamber is substantially divided into two sections located on axially opposite sides of the resonance member. The upper support further includes a support device for elastically supporting the resonance member with respect to the above-indicated one of the inner and outer rigid members, such that the resonance member can be axially displaced relative to the one rigid member due to elastic deformation of the support device.

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Inuyama, Japan

Michio Ito