US 11,987,192 B2
Bumper cross beam for a motor vehicle
Alexander Günther, Olpe (DE); Lena Kremer, Finnentrop (DE); Maria Schmitt, Attendorn (DE); and Marco Töller, Cologne (DE)
Assigned to KIRCHHOFF AUTOMOTIVE DEUTSCHLAND GMBH, Attendorn (DE)
Appl. No. 17/636,946
Filed by Kirchhoff Automotive Deutschland GmbH, Attendorn (DE)
PCT Filed Sep. 3, 2020, PCT No. PCT/EP2020/074588
§ 371(c)(1), (2) Date Feb. 21, 2022,
PCT Pub. No. WO2021/043899, PCT Pub. Date Mar. 11, 2021.
Claims priority of application No. 10 2019 124 019.0 (DE), filed on Sep. 6, 2019; and application No. 10 2019 124 020.4 (DE), filed on Sep. 6, 2019.
Prior Publication US 2022/0363211 A1, Nov. 17, 2022
Int. Cl. B60R 19/34 (2006.01); B60R 19/02 (2006.01); B60R 19/18 (2006.01)
CPC B60R 19/34 (2013.01) [B60R 19/023 (2013.01); B60R 19/18 (2013.01); B60R 2019/1813 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A bumper crossmember for a motor vehicle, wherein an x-direction corresponds to a longitudinal extension of the vehicle, a y-direction corresponds to a transverse extension of the vehicle, and a z-direction corresponds to a vertical direction, the bumper crossmember comprising:
a crossmember having a longitudinal extension extending in the y-direction and two crashboxes connected thereto in respective end sections of the crossmember, the crashboxes each having a first end connected to the crossmember and an opposite second end configured to be connected to a structural component of the vehicle, wherein the crossmember has a corrugated structure in a connection area of at least one of the crashboxes, and
a tow sleeve integrated in the bumper crossmember in the connection area of the crashbox, wherein the tow sleeve is held in the corrugated structure in a form-fitting manner in the z-direction and in the y-direction in a vertex structure of the corrugated structure, the vertex structure having a vertex area pointing away from the crashbox, with a lateral surface of the tow sleeve on flanks of the corrugated structure facing one another and forming the vertex structure.