The invention relates to a single-shell spring control arm formed of sheet metal for a wheel suspension of a motor vehicle, with upwardly directed side limbs connected to one another by a base, with a first end section for connection to a chassis girder, with a second end section for wheel-side connection, with a spring receiving section, which is located between the two end sections and has a spring support surface formed on the base, and with a damper receiving section formed between the spring receiving section and the second end section for connecting a shock absorber. In order to achieve at relatively low component weight and favorable manufacturing costs improved stiffness with respect to high axle loads, the invention provides that a U-shaped constriction is formed between the spring support surface and the damper receiving section, which constriction extends in the base and in the side limbs.

Provided is a trailing arm riding mower suspension system that includes trailing arms adapted to support hydraulic motor units and having leading ends pivotally coupled to a mower frame by way of leading end spherical joints and trailing ends having hydraulic drive unit mounts, where the trailing arms are adapted to pivot about leading end pivot locations defined by the leading end spherical joints.

The invention relates to an axle unit comprising an axle tube and a link element, wherein the axle tube substantially extends along a tube axis, wherein the link element has a joining portion with a first welding portion and a second welding portion, wherein the link element is arranged with its joining portion adjacent to the axle tube and substantially transversely with respect to the tube axis, wherein, in the first welding portion and in the second welding portion, a welded joint can be produced between the link element and the axle tube.

Relates to a link element, in particular for use in utility vehicles, comprising a first wall region, a second wall region and a third wall region, wherein the link element has a pivot region for pivotable support about a pivot axis, wherein the first wall region and the second wall region extend substantially parallel with a transverse plane, wherein the transverse plane is orthogonal to the pivot axis, wherein the third wall region protrudes along a lateral plane from the first wall region and/or from the second wall region, wherein the lateral plane is orientated perpendicularly to the transverse plane, wherein the third wall region is arranged parallel with the transverse plane eccentrically with respect to the extent of the first wall region and/or the second wall region.

A suspension and steering mechanism for a vehicle including at least one suspension arm, a steering arm, and a steering actuator. The suspension arm includes a wheel mounting end and a base end rotatably coupled with a reference frame via a base axis. The steering arm is coupled with the suspension arm at a rotation point of the steering arm. An actuated end of the steering arm extends toward a first direction from the rotation point. The steering actuator includes an actuating end and a fixed end, and is rotatably coupled at the fixed end with the suspension arm and rotatably coupled at the actuating end with the actuated end of the steering arm. A horizontal location of the fixed end is within at least one of a horizontal cross-section of the suspension arm and a triangle defined by the rotation point and the largest width of the base axis.

A chassis component for a wheel suspension, having a strut arrangement with at least one strut which has a profile with an open cross-section. The at least one strut has a profile base and two wall sections which extend away from the base. An end of the strut has an articulation point that receives a first joint component having a spherical joint body and a second joint component which holds the joint body so as to rotate and/or pivot. A first joint accommodation aperture and a second joint accommodation aperture are arranged, in the area of the articulation point, opposite one another. The joint body is positioned via a circular-segment-shaped fastening element arranged on the joint body between the joint accommodation apertures. The joint accommodation apertures and the joint body positioned between them are integrated in a joint housing produced by overmolding, which forms the second joint component.

A suspension arm for a chassis of a vehicle, having a first shell element which has a first open cross-section and having a second shell element which is connected to the first shell element and has a second open cross-section. The second shell element is arranged at least in part in the first open cross-section, and the open cross-sections are open in the same direction.

A chassis link has a link body, a ball joint socket being arranged at one link end of the link body. The ball joint socket has a cylindrical portion and an outwardly directed flange which is formed from the same material as and in one piece with the cylindrical portion. The ball joint socket is joined by way of the flange to a first web of the link body. A second lower web of the link body is joined to the cylindrical portion.

A vehicular suspension control arm comprises a first arm component and a second arm component formed from sheet metal, each arm component comprising an outer wall and two side walls, bushing connecting means adjacent a first end, at least one bracket receiving rivet aperture adjacent a second end, at least one component connecting rivet aperture located between the first end and the second end, a ride bushing and a handling bushing, a ball joint bracket comprising bracket rivet apertures corresponding to the at least one bracket receiving rivet aperture adjacent the second end of each of the first and second arm components and a plurality of rivets. When constructed, the ball joint bracket is riveted to both the first and second arm components adjacent the second end thereof via the at least one bracket receiving rivet aperture and the corresponding at least one bracket rivet aperture, the first arm component is riveted to the second arm component at the at least one component connecting rivet aperture, the ride bushing is connected at the first end of the first arm component and the handling bushing is connected at the first end of the second arm component.

A manufacturing method of a member according to an aspect of the present invention is a manufacturing method of a member including a specific three-dimensional tubular portion, the manufacturing method including: a U-forming step of performing U-forming on metal material sheet using a U-forming die and punch including a U-forming punch to manufacture a U-formed article having a recessed cross-sectional shape; and an O-forming step of causing side end portions of the U-formed article to abut each other by an O-forming die to form abutting portions, in which a forming condition ratio a=Du/Do is set to 0.85 to 0.95.