Patent · US Active

Bumper assembly

US8770639B2 · kind B2 · utility

1Cited by

1References

15Claims

0Family size

Assignee

Cosma Engineering Europe GmbH · AT

Inventors

Michael Blümel · Flatz, AT
Christian Hengst · Wien, AT
Ernst Lindtner · Baden, AT

Key dates

Filing date	Aug 3, 2011
Grant date	Jul 8, 2014
Priority date	—
Expiry date	Aug 3, 2031

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49826
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A method of making a beam-box crash management system comprises forming a first shell (100a) from a fist sheet metal blank by a hot forming process. The first shell has a high tensile strength beam portion (102a) and integrally formed there-with a first low yield strength crash box portion (104a)proximate a first end of the beam portion and second low yield strength crash box portion proximate a second end of the beam portion. The first shell also has an open face extending continuously along the beam portion and each of the first and second crash box portions (104a, 106a). A closing element (100b) is formed from a second sheet metal blank, and is fixedly secured adjacent to the open face of the first shell.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.