Kirchhoff Automotive Deutschland Gmbh

Lena Kremer

Alexander Günther

Marco Töller

Maria Schmitt

Ralf Stegmeyer

Stephan Lagin

Patrick Tlauka

Rolf Schwarzer

Cristina Matthey

Rolf Peter Röttger

A bumper cross member for a motor vehicle, having a crossmember extending transversely to the longitudinal axis of the vehicle, and two crashboxes connected thereto and designed as hollow chamber sections. Each crashbox is connected with its end facing away from the vehicle to the crossmember in a respective end section thereof, and may be connected, with its end facing the vehicle, to a structural component of the vehicle. The crashboxes are supported with their end faces only in sections on the rear side of the crossmember, in particular such that the support is continuous or at least substantially continuous either in the upper and lower end-face areas, or in the two lateral end-face areas, while support of the other end-face areas is provided only in sections or absent. The distance between the end-face areas of the crashboxes, which are unsupported on the crossmember, is set from the rear side of the crossmember, such that only after a first phase of energy absorption with deformation of the crashbox is the end face facing the crossmember supported over its whole surface on the rear side of the crossmember.

Bumper crossbeam for a motor vehicle

A hollow chamber support assembly for a vehicle comprising a hollow chamber support, an insert component designed as a hollow chamber profile, which is arranged in the hollow chamber support with the outer sides of the walls of the insert component spaced apart from the inner wall of the hollow chamber support, and means for holding a first end section of the insert component on an end of the hollow chamber support in its arrangement provided in the hollow chamber support(. The means are designed as clamping means and comprise a clamping element and an abutment element, wherein to clamp the insert component, the clamping element is supported on the abutment element and, in this supported arrangement, acts against the outer side of at least one wall of the insert component.

Hollow chamber support assembly for a vehicle

A bumper crossmember for a vehicle having a first crossmember provided by an outer shell facing away from the vehicle and an inner shell facing toward the vehicle, which two shells are connected to one another along their circumference. This crossmember has at least one passage oriented in the direction of its longitudinal extension and extending over its middle with respect to its longitudinal extension (y direction), and by which the crossmember is divided into an upper hollow chamber section and a lower hollow chamber section. Crash boxes arranged at distance from one another are connected to the lower hollow chamber section on its side facing the vehicle. The bumper crossmember has a second lower crossmember spaced apart in the z direction from the lower hollow chamber section and connected by at least two connector parts to the lower hollow chamber section of the first crossmember. Crash boxes arranged at a distance to one another are connected on the side of the second crossmember facing the vehicle.

Bumper crossmember for a vehicle

A bumper crossmember for a motor vehicle having a crossmember extending transversely to the longitudinal axis of the vehicle and two crashboxes connected thereto. Each crashbox is connected with its end facing away from the vehicle to the crossmember in a respective end section thereof, and with its end facing the vehicle is connectable to a structural component of the vehicle, e.g., a longitudinal member. The crossmember has a corrugated structure in the area where a crashbox is connected. A tow sleeve is integrated into the bumper crossmember in the connection area of the crashbox. The tow sleeve is held in a vertex structure of the corrugated structure in a form-fitting manner in the z and y directions, the vertex area of this vertex structure facing away from the crashbox, with the lateral surface of the tow sleeve on the flanks facing one another and forming the vertex structure.

Bumper cross beam for a motor vehicle

A bumper crossmember comprising a wave structure oriented in the vertical direction (z direction), wherein the wave structure comprises at least three apex structures which extend in the bumper crossmember longitudinal direction and are adjacent in the vertical direction. This crossmember comprises a first length section that follows its longitudinal extent, at least one second length section that follows its longitudinal extent, and at least one transition section that is arranged respectively between these length sections. In the second length section, the wave structure is inverted with respect to the first length section, in that the opening direction of the apex structures switches in the transition section. In the transition section, there is at least one additional apex-forming structure, the apex of which is offset in the frontal direction (x direction) with respect to a frontal plane (yz-plane) in which at least two apex structures that are adjacent in the longitudinal sections lie.

Growing community of inventors

Finnentrop, Germany

Lena Kremer