Bumper arrangement

US6174008A · kind A · utility

Assignee

• Daimlerchrysler AG · US

Inventors

• Johann Kramer · Leonberg, DE
• Bernd Schröder · Jülich, DE
• Martin Tebbe · Lörrach, DE

Key dates

• Filing date: Oct 13, 1999
• Grant date: Jan 16, 2001
• Expiry date: Oct 13, 2019

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R19/28
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

bumper arrangement for a motor vehicle includes a bumper mounted in such a way that it can be moved between a rest position and an operating position. A spring acts on the bumper and is prestressed in the rest position. A locking device holds the bumper in the rest and/or operating position. A control unit actuates the locking device as a function of signals from an accident detection sensor system. When the locking device is unlocked, the spring moves the bumper abruptly into the operating position in which the bumper absorbs impact loads resulting from relative velocities up to a predetermined limit in a substantially elastic manner.