Crash box

US7823939B2 · kind B2 · utility

Assignee

• BENTELER AUTOMOBILTECHNIK GMBH · DE

Inventors

• Christian Handing · Neviges, DE
• Jochen Dörr · Bad Driburg, DE

Key dates

• Filing date: Mar 25, 2009
• Grant date: Nov 2, 2010
• Expiry date: Mar 25, 2029

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R19/34
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A crash box for installation between a bumper beam and a side rail of a motor vehicle includes an outer tube, and an inner tube which is held inside the outer tube, with the outer and inner tubes being movable in relation to one another. At least one of the inner and outer tubes is provided with a coat of varnish at least in a contact area between the outer pipe and the inner pipe.