Daimler Ag

Daimler Chrysler Ag

Wilfried Heise

Asmir Salkic

J&ouml;rg Sikorski

Klaus Haegele

Joachim Seidel

Jens Peter Weber

Achim Hoffmann

Joachim Ruhs

Klaus HÄGELE

A connection structure between a first and a second component, the second component being formed from a steel material. The first component is made from a lightweight construction material of the minimum possible weight and having a high degree of stiffness, such as a fiber-reinforced plastic. Both components are connected by a metallic intermediate component, which is non-detachably connected by a plug-in means of connection with the first component.

Connecting arrangement

A motor vehicle body includes stiffening struts created from a composite fiber material. Each stiffening strut is connected at both ends to the adjoining body components via a connection section. The fibers of the stiffening strut run essentially unidirectionally in the direction of loading of the stiffening strut and the cross-sectional area of the stiffening strut remains constant at least between the connection sections of the stiffening strut along a length of the stiffening strut.

Motor vehicle body with stiffening struts

A cross member as part of a motor-vehicle floor assembly is provided which, on both sides, comprises an attachment region for the screwing on of a rear axle unit, and a spring-receiving region which is adjacent to the attachment region and is intended for the fixing in place of a helical spring. In order to be able to absorb in a specific manner the compression and bending stresses introduced in the attachment and spring-receiving region, the cross member is provided with a stiffening structure of additional metal plates, the stiffening structure being used to obtain a local increase in the stiffening and strength of these regions. The stiffening structure is formed by extruded and bent steel plates which are nested one into another like boxes and are connected to one another and to the base and side walls of the cross member by spot welding. This box structure enables the screw-on intersecting point to be adjusted with respect to the rear axle in the body shell in the X- and Y-directions. This stiffening structure can be welded into the cross member with little manufacturing outlay and fulfils the stiffness requirements placed on the connecting region.

Cross member as part of a motor-vehicle floor assembly

Growing community of inventors

Rottenburg, Germany

Wilfried Heise