US 11,919,569 B2
Cast part of a motor vehicle
Jean-Baptiste Roy, Guyancourt (FR)
Assigned to Nissan Motor Co., Ltd., Kanagawa (JP)
Appl. No. 17/598,089
Filed by Nissan Motor Co., Ltd., Kanagawa (JP)
PCT Filed Mar. 12, 2020, PCT No. PCT/EP2020/056726
§ 371(c)(1), (2) Date Sep. 24, 2021,
PCT Pub. No. WO2020/193166, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 1903035 (FR), filed on Mar. 25, 2019.
Prior Publication US 2022/0185372 A1, Jun. 16, 2022
Int. Cl. B62D 21/00 (2006.01); B62D 21/02 (2006.01); B62D 25/08 (2006.01); B62D 29/00 (2006.01)
CPC B62D 21/00 (2013.01) [B62D 21/02 (2013.01); B62D 25/08 (2013.01); B62D 29/008 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A casting made of aluminum, for a motor vehicle, comprising:
a bottom wall;
at least two upper walls rising in a first direction from the bottom wall to form a passage; and
at least two lower walls extending the upper walls beyond the bottom wall in a second direction opposite the first direction, such that the upper walls and lower walls form with the bottom wall a section transverse to the passage that has the overall shape of an H,
in one or more given cross sections, at least one upper internal rib extending inside the H and transversely to the upper walls and to the bottom wall, at least one external rib extending outside the H in the extension of the upper internal rib, and at least one lower internal rib extending inside the H and in the extension of the upper internal rib,
wherein the upper internal rib and the lower internal rib are shaped such that a reduced height of the upper internal rib in a central zone of the H is compensated for by an increased height of the lower internal rib in the same central zone (ZC), the height being considered relative to the bottom wall.