A wheel suspension unit for a motor vehicle having a longitudinal link, having a first end for pivotable vehicle-side connection, a second end for connection to a wheel carrier, and a blade-like link portion resilient in the direction of the transverse axis (Y) and rigid transversely relative thereto. The wheel suspension reduces the number of components by providing a longitudinal link having a resilient portion resilient toward the longitudinal axis (X), wherein the longitudinal link is at least partially produced from a fiber-reinforced plastics material.

A vehicle wheel suspension of a control blade design has three wheel-guiding control arms essentially oriented in the transverse direction of the vehicle and one longitudinal control arm fastened rigidly to the wheel carrier and barely limiting its transverse movement with respect to the vehicle body. The longitudinal control arm is constructed of a fiber composite material and is also rigidly fastened to the vehicle body and thereby takes over the function of a main spring between the wheel carrier and the vehicle body. Other than stop springs integrated in a vibration damper, no further main spring element is provided between the wheel carrier and the vehicle body. The above-mentioned longitudinal control arm may be formed by two, in a wide area, individual control arm parts, which are essentially situated in a common vertical plane, specifically such that the first control arm part of the longitudinal control arm is fastened to the wheel carrier above the wheel center, and second control arm part is fastened to the wheel carrier below the wheel center. The two control arm parts, guided together with their other ends in a common fastening element, are, as required, slightly elastically fastened to the vehicle body.

The invention relates to a spring arm device (1) for a motor vehicle, comprising two flanges (2) arranged at a distance from each other and which are made of a first fiber composite material (4) having fibers (6) each oriented in a longitudinal direction (5) of the flanges (2). The spring arm device (1) also comprises a web (3) which connects the flanges (2) and is made of a second fiber composite material (7) having the fibers (8) oriented at positive angles to the longitudinal directions (5) of the flanges (2). The spring arm device (1) can be fastened in end regions (15) opposite to each other to vehicle parts as part of a wheel suspension. The end regions (15) comprise end segments (14) of the two flanges (2) associated with each other and each comprise an end segment (9) of the web (3) that connects the end segments (14) of the flanges (2). Respective forces applied to the spring arm device (1) in the longitudinal direction (5) by means of the end regions (15) can be transmitted by means of the flanges (2). By means of a spring force, the flanges (2) counteract deformation of the spring arm device (1) caused by forces acting in a normal direction (16) of the web (3). Forces acting on the spring arm device (1) in a transverse direction (13) are transmitted from the web (3) to the end regions (15).

An independent wheel suspension for a two-track vehicle has a wheel carrier, a vibration damper designed and arranged in the manner of a damper strut, and a leaf spring element, which has, in particular, a fiber composite material or is made from a fiber composite material. The leaf spring element is oriented at least approximately in the transverse direction of the vehicle and is designed to provide a suspension function and, together with the vibration damper, to guide a vehicle wheel fastened to the wheel carrier when the independent wheel suspension is installed in a vehicle for functional usage. The leaf spring element is connected, on the wheel carrier end, to the wheel carrier via two rubber bearings, each having a bearing axis and a central bearing point, so as to be rotatable about the respective bearing axis of each rubber bearing and is designed to be connected, on the vehicle body end, to an axle support in a torsion-resistant manner and/or directly to a vehicle body.

An independent wheel suspension for a two-track vehicle has a wheel carrier, a vibration damper designed and arranged in the manner of a damper strut, and a leaf spring element, which has, in particular, a fiber composite material or is made from a fiber composite material. The leaf spring element is oriented at least approximately in the transverse direction of the vehicle and is designed to provide a suspension function and, together with the vibration damper, to guide a vehicle wheel fastened to the wheel carrier when the independent wheel suspension is installed in a vehicle for functional usage. The leaf spring element is connected, on the wheel carrier end, to the wheel carrier via two rubber bearings, each having a bearing axis and a central bearing point, so as to be rotatable about the respective bearing axis of each rubber bearing and is designed to be connected, on the vehicle body end, to an axle support in a torsion-resistant manner and/or directly to a vehicle body.

A suspension arm assembly for supporting at least a section of a recreational vehicle, such as a snowmobile or all-terrain vehicle front end, above a support surface is described. The suspension arm assembly has at least one segmented suspension arm formed by an upper arm section, a lower arm section and an intermediate arm section. The intermediate arm section is interconnected between the upper and lower arm sections by detachable end connectors. The intermediate arm section when impacted by objects in its pathway, when the vehicle is in motion and when damaged by an impact force of a strength overcoming its resistance strength, will deform or break. The intermediate arm can then be easily detached from the detachable end connectors for replacement by a further intermediate arm section and thereby permitting on site repair of the suspension arm assembly.

A suspension arm assembly for supporting at least a section of a recreational vehicle, such as a snowmobile or all-terrain vehicle front end, above a support surface is described. The suspension arm assembly has at least one segmented suspension arm formed by an upper arm section, a lower arm section and an intermediate arm section. The intermediate arm section is interconnected between the upper and lower arm sections by detachable end connectors. The intermediate arm section when impacted by objects in its pathway, when the vehicle is in motion and when damaged by an impact force of a strength overcoming its resistance strength, will deform or break. The intermediate arm can then be easily detached from the detachable end connectors for replacement by a further intermediate arm section and thereby permitting on site repair of the suspension arm assembly.

A wheel suspension (1) for a motor vehicle, having a wheel carrier (3) which is mounted so that the wheel carrier (3) can pivot relative to a wheel-guiding control arm (4). The wheel-guiding control arm (4) includes a longitudinal control arm section (4a) with a forward body-side bearing (11) and a transverse control arm section (4b) with a rear body-side bearing (12). The rear body-side bearing (12) is designed as a ball joint.

An axle unit, includes a control arm and a clamping unit that surround a tube region, wherein a first side of the control arm faces away from the tube region, and a second side of the control arm forms a boundary face on the control-arm side of the tube region, wherein the clamping unit can be brought into supporting abutment with the first side of the control arm and has a boundary face on the clamp side, which face defines the tube region, wherein the clamping unit has a first and second clamping parts each having a wedge portion, wherein the wedge portions are formed in such a way that a displacement of the clamping parts substantially in parallel with a clamping axis toward one another results in a narrowing of the tube region transversely to the clamping axis.

A wheel suspension unit for a motor vehicle having a longitudinal link, having a first end for pivotable vehicle-side connection, a second end for connection to a wheel carrier, and a blade-like link portion resilient in the direction of the transverse axis (Y) and rigid transversely relative thereto. The wheel suspension reduces the number of components by providing a longitudinal link having a resilient portion resilient toward the longitudinal axis (X), wherein the longitudinal link is at least partially produced from a fiber-reinforced plastics material.