A hub carrier includes a front arm part extending toward an inner side of the vehicle on a front side of the vehicle relative to an axle of the rear wheel; and a rear arm part extending on a rear side of the vehicle relative to the axle of the rear wheel. The rear arm part is joined to a lateral beam, extending in a vehicle width direction, on the rear side of the vehicle relative to the axle of the rear wheel. A vehicle rear end portion of a trailing arm, extending in a vehicle front-rear direction, is joined to the lateral beam. A vehicle front end portion of the trailing arm is joined to a vehicle body by using a first bush. A front arm part is joined to a front arm attachment part disposed on the trailing arm by using a second bush. A first support shaft of the first bush and a second support shaft of the second bush have respectively axial directions oriented differently from each other.

Provided are a suspension bush and a suspension device that are able to achieve both steering operability and stability of a vehicle at the time of turning. A projection portion is formed on the outer circumference of an inner cylinder. A guide is formed on the inner circumference of an outer cylinder. In the guide, a slit is formed along an extending direction that includes: a component, in a parallel direction, which runs parallel with an axial line; and a component in a circumferential direction around the axial line. The projection portion is disposed in the slit, and a threaded mechanism is formed by the projection portion and the slit.

The axle beam type suspension includes: the pair of trailing arms extending in the front-rear direction with the respective front end sections supported on the vehicle body and the respective rear end sections coupled to the wheels; the axle beam extending in the vehicle width direction and coupling the pair of trailing arms to each other; the pair of Watt's linkage mechanisms extending in the vehicle width direction, coupling the pair of trailing arms to each other at a position rearward of the axle beam, and fixed at a middle part to the vehicle body; and the inner shafts as connection members connecting the vehicle-width-direction outer end portions of one of the pair of Watt's linkage mechanisms and the other Watt's linkage mechanism. The inner shafts are characterized in that they are fixed to the trailing arms via the elastic members surrounding the inner shafts.

A tubular vibration-damping device including: a vibration-damping device main unit wherein a main rubber elastic body is externally fixed to an inner shaft member; an outer tube member mounted on an outer peripheral face of the main unit; a pair of stopper protrusions protruding to opposite sides of a first axis-perpendicular direction at the inner shaft member; a cushion rubber layer fixed to the stopper protrusions; a stopper concavity provided in an inner peripheral face of the outer tube member to receive the stopper protrusions being inserted, with a wall opposed to the stopper protrusions in an axial direction, the first axis-perpendicular direction, and a second axis-perpendicular direction orthogonal thereto; and stoppers for all the directions constituted by contact of the wall and the stopper protrusions to limit relative displacement between the inner shaft member and the outer tube member.

A bearing device (7) for a leaf spring assembly (1) of a wheel suspension, having a leaf spring (2) and a connection device, which serves for the installation of the leaf spring (2) at the vehicle body. The connection device has a bolt. The leaf spring (2) is fabricated from a fiber composite material and has a recess that passes through the leaf spring, in a transverse direction, and through which the bolt (10) extends in order to provide the bearing device (7) with a compact construction and a low manufacturing cost and effort.

A torsion axle assembly for supporting of a vehicle body on an undercarriage, including an elongated inner member having an inner member longitudinal axis; a torsion arm interconnected with the elongated inner member and the undercarriage; an elongated enclosure interconnected with the vehicle body and having an interior space; and resilient polymeric material residing within the interior space to support the elongated inner member within the interior space, such that the inner member longitudinal axis resides at an unloaded camber angle to an elongated enclosure longitudinal axis when none of the weight of the vehicle body is borne by the torsion axle assembly and at a loaded camber angle when the weight of the vehicle body is borne by the torsion axle assembly, such that the unloaded camber angle is greater than the loaded camber angle. A vehicle having such a torsion axle assembly and a method are disclosed.

The twist axle assembly includes a pair of spaced apart trailing arms and a twist beam which is made of a single piece and is operably connected with the trailing arms. The twist beam has a top wall, a bottom wall and a pair of side walls. The twist beam presents a pair of end portions which are bent to present edges that face towards one another when viewed in cross-section, and the twist beam presents a middle portion which extends between the end portions. The middle portion has an opening with a generally elliptical shape formed into the bottom wall for reducing a torsion stiffness of the middle portion of the twist beam in comparison to the end portions.

A rear suspension structure includes a hub carrier having a wheel support portion by which a rear wheel is rotatably supported, the hub carrier includes a front arm portion that extends in a vehicle inner direction and toward the vehicle front side beyond an axle of the rear wheel and a rear arm portion that extends toward the vehicle rear side, the rear arm portion is coupled to a lateral beam extending in a vehicle width direction, on the vehicle rear side of the axle, a vehicle rear side end portion of a trailing arm extending in a vehicle front-rear direction is coupled to the lateral beam, and the front arm portion is coupled to a front arm attachment portion provided in the trailing arm.

A chassis arrangement (10), in particular for utility vehicles (1), with at least one axle (3) that extends transverse to the travel direction and carries wheels (4). Movement of the axle (3) is damped by vibration dampers (11) provided with end sections (15), and with at least one stabilizer assembly (12) that has two longitudinally extending sections (13) and a transverse section (14) that connects the longitudinally extending sections. An end section (15) of the vibration damper (11) is held directly on and is connected to the stabilizer assembly (12) on an extension (16, 17) of the transversely orientated section (14) beyond the longitudinal section (13).

A twist axle assembly (20) of a vehicle includes a pair of trailing arms (22) and a twist beam (24) extending along an axis (A) between first and second twist beam ends (26, 28). The twist axle assembly (20) further includes a bushing (38) interconnected to each one of the first and second twist beam ends (26, 28) and a respective trailing arm (22) for establishing a weld-less joint between the twist beam (24) and the trailing arm (24). In an embodiment, the twist beam (24) and bushings (38) are tubular, and the bushings (38) are press-fit or molded onto the respective first or second twist beam ends (36, 38). In a further embodiment, the trailing arms (26) define an orifice (40) aligned on the axis (A), and the tubular bushings (38) are press-fit into the orifices (40) of the trailing arms (26) to establish the weld-less joint.