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US 9,981,696 B2Granted
Pillar for a motor vehicle and method for manufacturing a pillar
AssigneeBenteler Automobiltechnik GmbH
InventorsHenning Von Watzdorf, Georg Frost, Martin Schroeter
Life of this patent
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Abstract
A pillar for a motor vehicle bodywork is disclosed having a main element with an upper coupling section for attaching to a roof frame, and a secondary element composed of metallic alloy. The secondary element is connected in a planar fashion at least over certain sections of the main element, and the main element has a middle layer composed of a hardened steel alloy, and at least one outer layer which bounds the middle layer toward the outside.
Claims11
A pillar for a motor vehicle bodywork, comprising:
- a main element with an upper coupling section for attaching to a roof frame, and a secondary element composed of a metallic alloy, wherein the secondary element is connected in a planar fashion at least over certain sections to the main element, and the main element has in cross section a middle layer composed of a hardened steel alloy and at least one outer layer which bounds the middle layer toward the outside,
- wherein either the main element has a lower coupling section for attachment to a sill of the motor vehicle bodywork or a lower coupling section for attachment to a sill of the motor vehicle bodywork is formed by the secondary element,
- wherein the pillar also has a central longitudinal section which extends between the coupling sections, characterized in that the outer layer of the main element is composed of a ferritic stainless steel alloy, wherein the outer layer is connected to the middle layer in a planar and materially joined fashion, and the main element has a bending angle (α) greater than 70 degrees and a tensile strength (Rm) of at least 1350 megapascal.
Dependencies are inferred from the claim text.