Crash-active headrest

US7070235B2 · kind B2 · utility

Assignee

• KEIPER GMBH & CO. KG · DE

Inventors

• Jurgen Schilling · Oberndorf am Neckar, DE
• Michael Bohmer · Austin, US
• Daniel Hippel · Winnweiler, DE
• Darius Wrobel · Kaiserslautern, DE
• Harald Klein · Bessenbach, DE
• Georg Ruess · Oberarnbach, DE
• Ali Peter Rihlmann · Kaiserslautern, DE

Key dates

• Filing date: Jan 18, 2005
• Grant date: Jul 4, 2006
• Expiry date: Jan 18, 2025

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2/888
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

In a headrest (1) for a vehicle seat, having a carrier (5), at least one upper and lower linkage (11, 15) linked to the carrier (5), which can be pivoted around horizontal axles (7, 17), a impact element (13) linked to the linkages (11, 15) which forms at least one four-bar linkage (19) with the linkages (11, 15) and the carrier (5), and an energy storage device (25), the energy storage device (25) driving the four-bar linkage (19) in the event of a crash, so that the impact element (13) comes out forward from an original position into a crash position that is locked against a backward movement by a crash lock, the upper linkage (11) and the lower linkage (15) are unparallel with respect to one another.