Tokai Rubber Industries, Ltd.

Toyota Jidosha Kabushiki Kaisha

Sumitomo Riko Company Limited

Sekido Kiko Mfg. Co., Ltd.

Norimasa Kuki

Kazuhiko Kato

Yoshikane Akiyama

Mitiharu Hikosaka

Takashi Kume

Yuji Homma

Hitoshi Kawai

Ryusuke Yamada

Koichi Matsuda

Masami Endo

Hiroki Sunouchi

Daiki Mimpo

Mie Miyauchi

Yuji Mizuno

Kazumasa Sekido

Daisuke Ueda

Taisuke Nishimura

Harumi Niwa

Hiroshi Itazu

A stabilizer bushing installed on a stabilizer bar is made of two divided parts of rubber or the like to prevent or decrease generation of a gap in a bonding surface. The stabilizer bushing installed on an outer periphery of the stabilizer bar by adhesion includes divided rubber bushings of an upper rubber bushing and a lower rubber bushing. Before adhesion, both end portions of the upper and lower rubber bushings, respectively, in a circumferential direction are tapered so that an overlapping amount between the upper and lower rubber bushings increases toward the outer periphery side of the bushings. After adhesion, a bonding surface is bonded by pressure.

Stabilizer bushing

A manufacturing method of a vibration damping bushing wherein an outer cylindrical member arranged on an outer peripheral side of an inner axial member is provided with on its both axial sides a pair of first inclined cylindrical parts each having a diameter gradually reduced toward an axial outside and a pair of second inclined cylindrical parts each extending further toward the axial outside from an axial end of the corresponding first inclined cylindrical part with an inclination angle smaller than that of the first inclined cylindrical part. The outer cylindrical member is arranged on the outer peripheral side of the inner axial member to be connected thereto by a main rubber elastic body. Axial ends of the main rubber elastic body are deformed by increasing the inclination angle of the second inclined cylindrical parts of the outer cylindrical member through a drawing operation.

Vibration damping bushing and manufacturing method of vibration damping bushing

A vibration damping rubber bushing including: an inner cylindrical member; a main rubber elastic body bonded to an outer circumferential face of the inner cylindrical member; a plurality of anti-slip projections provided on at least one of axial end faces of the inner cylindrical member that project axially outward from the axial end face and extend with ribbed shape in a diametrical direction on the axial end face to produce a spokewise pattern overall; and an annular water barrier projection provided on a diametrical medial section of the at least one of the axial end faces of the inner cylindrical member, projecting axially outwardly and extending circumferentially, with the anti-slip projections being disposed to both radially inner side and radially outer side of the annular water barrier projection.

Vibration damping rubber bushing

A method of manufacturing a cylindrical member having anti-slip projections formed on axial end faces, the method comprising the steps of: employing a roller die, which is provided with a circumferential die groove of annular form extending through a medial section in a generatrix direction of a die face defined by an integral tapered outside peripheral face, and with a plurality of sloping die grooves extending in a tapered slope direction of the die face situated to both large-diameter and small-diameter sides of the circumferential die groove; providing plastic working to the axial end face with the small-diameter side of the roller die facing towards an inner peripheral side of the cylindrical member and with the large-diameter side facing towards an outer peripheral side, by pushing the die face against the axial end face while rotating circumferentially; and forming simultaneously an annular water barrier projection and the anti-slip projections.

Manufacturing method of cylindrical member and manufacturing method of vibration damping rubber bushing having the cylindrical member

A dust cover strike plate in a suspension mechanism having a dust cover disposed about a shock absorber and arranged radially inward of a coil spring, and being superimposed on an inner portion of an upper face of a lower spring support member, and includes an abutting face opposite to a lower end of the dust cover in an axial direction. The abutting face has an axial projection height from the lower spring support member that is varied in a circumferential direction corresponding to an incline angle of the lower spring support member to the center axis of the shock absorber so that the abutting face is arranged on a plane substantially perpendicular to the center axis of the shock absorber, with which the lower end of the dust cover comes into contact. A suspension mechanism equipped with the dust cover strike plate is also enclosed.

Dust cover strike plate and suspension mechanism having the same

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Komaki, Japan

Norimasa Kuki