Bumper beam for motor vehicles

US6371540B1 · kind B1 · utility

Assignees

• Peugeot Citröen {overscore (A)}utomobiles S.A. · FR
• Recherche et Developpement du Groupe Cockerill Sambre en Abrégé · BE

Inventors

• Thierry Campanella · Linas, FR
• Richard Kergen · Fexhe-le-Haut-Clocher, BE
• Pascal Magain · Montbliart, BE

Key dates

• Filing date: May 15, 2001
• Grant date: Apr 16, 2002
• Expiry date: May 15, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R2019/1806
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A bumper beam for motor vehicles includes vertical front and rear plates made of at least one metallic material. At least one elongated core made of metallic material is positioned between the two sole plates. An energy absorber is located at each end of the core and formed of a metallic hollow body, the energy absorber being positioned at right angles to the sole plates or to the core. The metallic materials of the core and the energy absorber have a ratio of elastic limit to breaking stress that is lower than that of the sole plate metallic material and lower than 0.9.