Side part for a motor vehicle body

Patent metadata

Field	Value
Publication number	US-2025091650-A1
Application number	US-202418884891-A
Country	US
Kind code	A1
Filing date	Sep 13, 2024
Priority date	Sep 14, 2023
Publication date	Mar 20, 2025
Grant date	—

Abstract

A rear side part of a motor vehicle body, has a C pillar, a D pillar and a wheel housing segment, and is produced as a one piece sheet metal forming part in a press stroke. The C pillar and the D pillar being C-shaped, U-shaped or hat-shaped in cross-section, characterized in that the side part includes adjacent areas with different tensile strengths and/or different wall thicknesses.

First claim

1 - 11 . (canceled)

12 . A rear side part of a motor vehicle body, the rear side part comprising:
a C pillar, a D pillar, and a wheel housing segment, manufactured as a one piece sheet metal forming part in one press stroke, wherein the C pillar and the D pillar are C-shaped, U-shaped or hat-shaped in cross-section, wherein the rear side part has adjacent areas with at least one of different tensile strengths or different wall thicknesses.

13 . The rear side part according to claim 12 , being a hot-formed and press-hardened component.

14 . The rear side part according to claim 12 , wherein a high-tensile area of the rear side part has a tensile strength greater than or equal to 1350 MPa.

15 . The rear side part according to claim 12 , wherein a low-tensile area of the rear side part has a tensile strength of less than 1000 MPa.

16 . The rear side part according to claim 12 , further comprising a reinforcement patch applied at least locally to the C pillar.

17 . The rear side part according to claim 12 , wherein the wheel housing segment is contoured in the shape of a partial sphere or a spherical segment, or the wheel housing segment is contoured in an L-shape in cross-section in an area of a wheel arch.

18 . The rear side part according to claim 12 , wherein the wheel housing segment has at least one of a lower tensile strength or an increased wall thickness in an area of a wheel arch.

19 . The rear side part according to claim 18 , wherein the wheel arch has a semi-circular configuration and extends over an angular range greater than 30°.

20 . The rear side part according to claim 12 , wherein the one piece sheet metal forming part is manufactured from a tailored welded blank used as sheet metal blank.

21 . The rear side part according to claim 12 , wherein the C pillar has a first section with a tensile strength >1,350 MPa, and a second section with a tensile strength of <1,000 MPa.

22 . The rear side part according to claim 12 , wherein the C pillar, the D pillar and the wheel housing segment enclose an opening.

Assignees

• Benteler Automobiltechnik Gmbh

Inventors

• Frost Georg
• Hielscher Christian
• Hitz Andreas
• Kaupmann Paul
• Lohberg Mathias
• Toelle Joern

Classifications

• B62D25/08

  Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)} · CPC title

• B62D25/16

  Mud-guards or wings; Wheel cover panels (equipped with means for freeing wheels or tyres from foreign matter B60S) · CPC title

• B62D25/04 Primary

  Door pillars {; windshield pillars} · CPC title

• B62D29/007

  predominantly of special steel or specially treated steel, e.g. stainless steel or locally surface hardened steel · CPC title

• B62D21/15

  having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body (bumpers B60R19/02; shock absorbers in general F16F) · CPC title