Mazda Motor Corporation

Molten Corporation

Tadashi Yoshimura

Susumu Sano

Tadanobu Yamamoto

Masaya Hiramatsu

Hiroyuki Okamoto

Eiji Okada

Kazuhiro Okuyama

Hiroki Kimura

Hiromi Miwade

Haruaki Iseri

Takahiko Shigyo

Naoki Kurata

Ryo Ogawa

Tomohiro Tuji

Masayuki Mochizuki

The bushing includes an outer cylinder, an inner cylinder, and an elastic body therebetween. The outer cylinder has a central recess portion formed in a curved shape. The inner cylinder has a central convex portion being formed in a curved shape. A distance between a vertex of the central recess portion and the vertex of the central convex portion is smaller than a distance between a point other than the vertex of the central recess portion and a point at which a straight line extending from the point other than the vertex of the central recess portion to an intersection point of the perpendicular line and the axis of the inner cylinder intersects the central convex portion.

Bushing and vehicle suspension device

The bushing includes an outer cylinder, an inner cylinder, and an elastic body therebetween. The outer cylinder has a central recess portion recessed from the inner peripheral surface in the radial direction at the central portion in the axial direction, and the thickness of both end portions is thicker than the thickness of the central portion. The central recess portion is formed in a curved shape or having a curved and a straight shape. The inner cylinder has a central convex portion swelling from the outer peripheral surface in the radial direction at a position corresponding to the central recess portion. The maximum outer diameter of the central convex portion is larger than the minimum inner diameter of the inner peripheral surface of the outer cylinder.

A pair of bushing including an outer member having an outer main body and an outer flange; an inner member having an inner main body inserted into the outer member, an inner flange, and a through hole; and an elastic member disposed between the outer member and the inner member. The bushings are press-fit into a top aperture and a bottom aperture of a bushing-attaching hole in a suspension cross-member, respectively. When each bushing is press-fit into the apertures there exists a predetermined clearance between the inner members. For fixing the suspension cross-member to vehicle body, a stud is inserted through the respective through holes and a nut is fitted onto a stud and screwed until the inner members abut each other.

Suspension bushing, motor vehicle and a suspension cross-member for a motor vehicle

A sub-frame structure of a motor vehicle includes a pair of side frame sections and a cross member section. The pair of side frame sections extend in the longitudinal direction of the vehicle at prescribed lateral spacing and include laterally inward bends in each section. The cross member section connects front ends of the side frame sections. The cross member section and end portions of the side frame sections connected to the cross member section are integrally formed of a deformed tube member. The remaining portions of the frame member sections including said bends are formed of a closed section member fabricated by joining a plurality of members at flanges.

Sub-frame structure of motor-vehicle

A swing arm of a suspension system for supporting the body of a motor vehicle comprises a main swing arm body on which a support portion for supporting a suspension damper is provided, a support member fixed to a rear portion of the main swing arm body and having supporting parts for supporting first to third suspension arms, and a support reinforcing member for reinforcing at least the supporting parts of the support member for supporting the second and third suspension arms. The main swing arm body, the support member and the support reinforcing member are produced by individually press-forming single steel plates and the swing arm is formed by joining the main swing arm body, the support member and the support reinforcing member.

Motor vehicle suspension system

Growing community of inventors

Hiroshima, Japan

Tadashi Yoshimura