Patent · US Active

Bumper system for motor vehicles

US8240725B2 · kind B2 · utility

0Cited by

12References

12Claims

0Family size

Assignee

BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

Holger Wiedermann · Munich, DE
Frank Seifert · Schwanau, DE
Torsten Gröning · Paderborn, DE

Key dates

Filing date	Mar 29, 2010
Grant date	Aug 14, 2012
Priority date	—
Expiry date	Jan 7, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60R21/34
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A bumper system for motor vehicles includes a cross member, and at least one crush box positioned between the cross member and the vehicle frame. Two coupling levers have opposite ends operably and pivotally connected with a crush box and cross member. The coupling levers are arranged in a mutually parallel relationship and oriented at an angle relative to vehicle travel, such that the cross member is supported by the crush box for displacement from a ready position toward the vehicle frame in both horizontal and vertical directions. An energy absorption element constructed from a foam material was positioned between a cross member and the crush box, and is clamped between the coupling levers to selectively resist inward movement of the cross member from the ready position upon impact to absorb impact energy.

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