A structural component for a motor vehicle, with a component body (2) made from a sheet, which includes at least one shell-shaped body portion (3) formed from the sheet and at least one receiving bush (6) formed from the sheet that extends along its circumference between first and second circumferential ends (4, 5), which at the first circumferential end (4) merges into the shell-shaped body portion (3) and at the second circumferential end (5) merges into a strengthening strip (7) formed from the sheet and attached to the shell-shaped body portion (3). The strengthening strip (7) completes the shell-shaped body portion (3) to form an at least partially closed hollow section (8).

A tubular type torsion beam is provided. The tubular type torsion beam is manufactured by bending and welding and coupling a plate material. The plate material has a plurality of protrusions disposed on a plurality of side surfaces in a width direction of the vehicle. The torsion beam is manufactured by molding the plate material in a pipe shape by bending the plate material in the width direction and molding the plate material to dispose the plurality of protrusions to contact each other to form a gap between the plurality of side surfaces of the plate material and then welding and coupling the plurality of side surfaces of the plate material.

A fragile portion is provided at a portion of a suspension arm which is positioned near a vehicle-body attachment portion. The fragile portion is configured such that when a load which is greater than a specified magnitude is inputted to a front wheel from a vehicle forward side, the suspension arm is bent at the fragile portion, whereby the front wheel is rotated rearwardly around the fragile portion.

A system and method for manufacturing a top mount for a vehicle suspension includes loading a top mount body, a journal, and a plurality of knurled studs into a lower die assembly. The lower die assembly includes a stationary die base, a floating die top, and a pusher shaft. A pusher head assembly applies a downward pressure to insert the knurled studs into the top mount body, while the pusher shaft substantially simultaneously applies an upward pressure to insert the journal into the top mount body. The floating die top and the pusher head assembly are raised in tandem to eject the top mount from the stationary die base. The floating die top and the pusher head assembly then retract so that the top mount can be removed from the system.

[Problem] To provide a suspension link having excellent reliability in strength or the like of a coupling portion of the suspension link while being inexpensive. [Solution] The present invention relates to a production method for a suspension link (100) having a tire coupling portion (11) that rotatably couples a tire to a suspension and a suspension coupling portion (12) that is coupled to a sub-frame member constituting the suspension, the method including: a bending process in which a plate is bent, a bent portion of the bent plate is formed into a hollow shape, and the hollow shape is used as one of the tire coupling portion and the suspension coupling portion; and an edge bending process in which an outer peripheral edge portion of the plate is bent prior to the bending process. The outer peripheral edge portion of the plate is bent by the edge bending process, the outer peripheral edge portion of the plate including an area from an arm (15) to a bent portion (24).

A torsion beam of a vehicle torsion beam suspension has a closed cross section. A beam center portion has an inverse substantially v-shaped cross section or a substantially v-shaped cross section. Circumference increasing portions having a longer circumferential length toward the beam ends are disposed at opposite sides of the beam center portion. Each circumference increasing portion has a beam width that is a width in the fore and aft direction of a vehicle body, the beam width gradually increasing toward a beam end, and increasing at a higher rate as a position of the beam width is closer to the beam end.

In order to reduce both the weight and the production costs in the case of vehicle chassis components consisting of at least two parts, a first part is made as a sheet component by press hardening and the second part is produced by a conventional production method, which does not include press hardening. The part produced by press hardening forms a structural component, whereas the other component serves to stiffen the part produced by press hardening.

A suspension member having an arm member and a ball joint section. The ball joint section having an opening receiving a press fit ball joint. The material of the ball joint section having a smaller material thickness than the material of the arm member. The ball joint section connected to the arm member.

[Object] Damage to a surface of a resin bush caused by press-fitting is prevented even when a configuration for positioning during welding is added. [Solving Means] A rolled collar (40) is a steel rolled collar into which a resin bush (90) is pressed-fitted, and which is joined to a joining member by welding. The rolled collar includes a main body part (50) formed in a hollow cylindrical shape, and a clinch part that joins both end surfaces of the main body part together by fitting. The rolled collar includes a notch part (70) formed by cutting off a portion of an annular edge (53) in the main body part. Here, a convex jig determining a position of the main body part at a time of welding is fit into the notch part. The rolled collar includes a cavity part (80) formed to be hollow from an inner circumferential surface side on a wall surface around the notch part to form a clearance (81) between the press-fitted resin bush and an edge portion (71) of the notch part on the inner circumferential surface side.

A suspension structure for vehicle (a suspension arm for vehicle) is formed of a first plate and a second plate, and includes a mounting part for mounting a component (a collar or a bush). The first plate is partially open toward a first flat plate part so that a first mounting surface can be formed by stamping in a state of a single unit where a first flat plate part is bent. The second plate is also partially open toward a second flat plate part. The mounting part is configured by facing the first flat plate part of the first plate and the second flat plate part of the second plate each other at a distance, and disposing the first mounting surface and a second mounting surface at a distance.