US 8,465,088 B2Granted

A-pillar for a vehicle

AssigneeGestamp Hardtech AB

InventorsHans Bodin, Jan Krispinsson, Paul Akerstrom, Daniel Berglund, Lars Wikstrom, Martin Holmberg

Life of this patent

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Abstract

An A-pillar for a vehicle includes a first part (15) extending as far as the windscreen and supporting the door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back in order to serve as a roof beam (19) above the door. This second part consists of two open sections (23, 24) with flanges (25, 26; 27, 28) welded together so as to give the pillar a closed profile. At least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa and the flanges (25, 26; 27, 28) of the sections have a breaking strength below 1100 MPa in a portion (35) situated above the door.

Claims20

Dependent claims

A-pillar for a vehicle including a first part (15) extending as far as a windscreen and supporting door hinges and a second arcuate part (16) extending up along the windscreen and continuing towards the back of the vehicle in order to serve as a roof beam (19) above the door, the second part formed from two sections (23, 24) each having a longitudinal flange at each end of each said section (25, 26;

27, 28) said longitudinal flanges on one said section being welded to said longitudinal flanges on said other section so as to form a closed profile, characterised in that at least one of the sections (23) is press-hardened and has a breaking strength in excess of 1400 MPa, and both of the flanges in at least one pair of flanges (25, 26;
27, 28) welded together have a breaking strength uniformly below 1100 MPa in a region (35) situated above the door.

Dependencies are inferred from the claim text.

Facts

Application: 13/261,321Filed 11 Dec 2010
Priority: SE 0901549-613 Dec 2009
Published: US 2012/0319432 A120 Dec 2012
Granted: 18 Jun 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification4 codes

B62D 25/04
Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for: door pillars ; windshield pillars
B62D 25/02
Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for: side panels
B62D 29/007
Superstructures, understructures, or sub-units thereof, characterised by the material thereof: predominantly of special steel or specially treated…
B62D
Motor vehicles

Family

US 2012/0319432 A1Pre-grant publication · published 20 Dec 2012
US 8,465,088 B2This patent

From the US filing history. Foreign family members aren’t listed.

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