Loading patent…
AssigneesVAW Aluminium AG, Thyssen Umformtechnik GmbH
InventorsDieter Bungarten, Olaf Elsner, Herbert Linden, Karl-Heinz von Zengen, Peter Harbig, Joachim Lowen, Franz Steimmel, Walther Hasenpatt, Kai-Uwe Jentsch, Jorg Ebert, Michael Hellenkamp, Gerhardt Sollner
Estimating the term…
The invention relates to an integral motor vehicle rear axle of the twist-beam axle type, which comprises an opposed pair of longitudinal control arms (2) of a high flexural strength and torsional stiffness for carrying a wheel carrier for a wheel, and a transverse strut (3) which is resistant to bending but resilient relative to torsional stress and which comprises a profiled cross-section changing the position of the shear center. The transverse strut (3) consists of an extruded aluminum profile with an extrusion structure extending in the longitudinal direction of the transverse strut. A method of producing a motor vehicle rear axle of the twist-beam axle type using transverse struts and longitudinal control arms consists in joining the longitudinal control arms (2) with a transverse carrier or strut (3) which, at each end, comprises a bore, opening or bonding surface extending transversely to the longitudinal axis, and in connecting said longitudinal control arms in a form-fitting and force-locking way, such as by hydro-forming, welding or similar methods.
A motor vehicle rear axle of the twist-beam axle type having unitary control arm assembly comprising an opposed pair of longitudinal control arms (2) of a high flexural strength and torsional stiffness, each for supporting a wheel carrier plate for a wheel, and a transverse strut (3) which is resistant to bending but resilient relative to torsional stress and which has a profiled cross-section and which twists to change the location of the shear center thereof, opposed ends of said strut being integral with a said control arm at a joining zone, characterized in that the transverse strut (3) consists of an aluminum extrusion having the following composition:
A motor vehicle rear axle of the twist beam axle type having a unitary control arm assembly comprising an opposed pair of longitudinal control arms (2) of a high flexural strength and torsional stiffness, each for supporting a wheel carrier plate (47) for a wheel, and an elongate transverse strut (3) which extends between said opposed pair of control arms and has opposed ends, said strut being resistant to bending but resilient relative to torsional stress to twist and thereby vary the location of the shear center thereof, and having a profiled hollow cross-section, each of the opposed ends of said strut being united with a said longitudinal control arm, characterized in that the transverse strut (3) consists of an aluminum extrusion having bifurcated ends which transition and curve into opposed longitudinal legs extending in opposed longitudinal directions, parallel to the longitudinal control arms, to provide an opening therebetween, each pair of said legs being connected to a said longitudinal control arm, having a section which extends into said opening and is integral with said legs.
Dependencies are inferred from the claim text.