摘要:
A connected structure includes a supporting member and a bushing mounting member connected thereto. The supporting member is made of a pipe having a round cross-sectional shape. The bushing mounting member includes a bushing mounting portion for mounting a bushing having a rubber elastic member and a connecting portion protruded from the bushing mounting portion. The connecting portion is press-fitted into an opening at one end of the supporting member, and the connecting portion and the supporting member are joined together along a circumference of the supporting member by a friction agitation joining method. Accordingly, the connecting member which is light in weight and high in strength with an improved efficiency for utilizing the surrounding space and a predetermined characteristics of a bushing can be obtained.
摘要:
There is disclosed a member for use with an arm that is used as an automobile suspension arm, for example. The member comprises a rodlike body and bushing-mounting portions formed at both ends of the rodlike body. The rodlike body consists of a hollow tube fabricated by extruding an aluminum material into a circular cross section. The bushing-mounting portions are formed by welding bushing-mounting members to both ends of the rodlike body. Each bushing-mounting member has a hole in which a bushing is mounted with a press fit. The curved wall of the rodlike body is recessed at the longitudinal center of the rodlike body. When an automobile having the aforementioned member collides, an axial compressive load is applied to the rodlike body. The rodlike body buckles at the recessed portion. This mitigates the impact in the collision.
摘要:
An arm member is used as, for example, a suspension arm of an automobile. The arm member comprises a main body made of a pipe member and a coupling member having a connecting portion. The pipe member is made of aluminum or its alloy. The coupling member is made of aluminum and includes a bushing mounting portion for mounting a vibroisolating bushing. The thickness of the peripheral wall of the end portion of the main body is increased in thickness to have a thickness thicker than that of the other portion of the main body. The connecting portion is abutted to the peripheral wall of the end portion to form an abutted portion, and connected thereto at the abutted portion. Thus, the coupling member is coupled to the main body.
摘要:
A joining structure for joining adjacent members includes a first member and a second member. One end portion of the first member is joined to one end portion of the second member such that protruded portions formed on the one end portion of the first and second members are engaged with corresponding dented portions formed on one end portion of the second and first members, respectively. A hollow joining member is fitted on a joined portion of said first and second members and crimped on the joined portion.
摘要:
A process for producing a vibration isolator includes the steps of preparing an axial member, an outside member, the outside member including a cylinder-shaped portion and a bracket having a hollow, and a cylinder-shaped rubber elastic member, and drawing the cylinder-shaped portion by inserting a stationary mold, with which a drawing apparatus is provided, into the hollow of the outside member so that an outer peripheral surface of the cylinder-shaped portion contacts with the stationary mold, by disposing the rubber elastic member and the axial member inside the cylinder-shaped portion, and by pressing the cylinder-shaped portion onto the stationary mold and simultaneously diametrically reducing the cylinder-shaped portion to plastically deform the same. The production process can obviate the conventional pressed-in construction in which metallic members contact with each other, can make the manufacture of the vibration isolator easy, and can reduce the manufacturing cost.
摘要:
A process for producing a vibration isolator. The process involves steps of forming an intermediate product including an axial member, an outside member having a cylinder-shaped portion and a rubber elastic member, and drawing the cylinder-shaped portion with a drawing apparatus provided with a drawing hole at least by pressing the cylinder-shaped portion into the drawing hole. The drawing hole has a predetermined dimensional diameter being smaller than an outer peripheral diameter of the cylinder-shaped portion. Thus, the cylinder-shaped portion is reduced diametrically to plastically deform. The production process can obviate the conventional pressed-in construction in which metallic members contact with each other, can make the manufacture of the vibration isolator easy, and can reduce the manufacturing cost.
摘要:
This invention relates to a suspension arm comprised of a bent arm member, and a pair of bearing members joined to end portion thereof. The arm member of the conventional suspension is made of the aluminium alloy and manufactured by the forging. So, the arm member of hollow construction and has a bent portion is hardly manufactured by the forging. In view of this, in the present invention, the arm member 1 made of the aluminium alloy and has hollow construction is manufactured by the extrusion, and bent before a pair of bearing members 2,3 are joined to each of end portions.
摘要:
A crosslinked elastomer body is composed of an electrically conductive composition comprising an electrically conductive filler and an insulative elastomer (matrix). The electrically conductive filler is in a spherical particulate form and has an average particle diameter of 0.05 to 100 μm. The electrically conductive filler has a critical volume fraction (φc) of not less than 30 vol % as determined at a first inflection point of a percolation curve at which an insulator-conductor transition occurs with an electrical resistance steeply reduced when the electrically conductive filler is gradually added to the elastomer. A resistance observed under compressive strain or bending strain increases according to the strain over a resistance observed under no strain when the electrically conductive filler is present in a volume fraction not less than the critical volume fraction (φc) in the composition.
摘要:
A fluid-filled elastic mount (10) wherein a fluid-tight space (40) defined by two mounting members (12, 14), an elastic body (16) and a flexible diaphragm (36) is divided by a partition member (34) into pressure-receiving and an equilibrium chambers (44, 46) communicating with each other through a first orifice (64). The partition member has a communication hole (62) for fluid communication of the first orifice with the equilibrium chamber. The elastic mount has a cover member (76) which cooperates with the diaphragm to define a space in which a pushing member (84) is accommodated such that it is pressed onto the diaphragm by a biasing member (86), so that the diaphragm closes the communication hole. The pushing member cooperates with a rubber plate (94) to divide the space within the cover member into static pressure and operating chambers (96, 100), and the pushing member is sucked toward the cover member by a negative pressure applied to the operating chamber, so that the diaphragm is displaced away from the communication hole to open the same for fluid communication of the orifice with the equilibrium chamber.
摘要:
A fluid-filled elastic mount wherein an elastic body elastically connecting a first and a second support partially defines a fluid chamber filled with a non-compressible fluid. The elastic mount includes an oscillating plate which partially defines the fluid chamber and which is supported by the second support such that the oscillating plate is displaceable relative to the second support, and an actuator for oscillating the oscillating plate to thereby change a pressure of the fluid in the fluid chamber. The elastic mount further includes an elastic support member for flexibly connecting the oscillating plate to the second support such that the oscillating plate is movable toward and away from the fluid chamber. This elastic support member is formed of an elastic material which substantially permits shearing deformation of the elastic support member and inhibits its compressive and tensile deformation.