Head-rest

US6715829B2 · kind B2 · utility

Assignee

• Autoliv Development AB · SE

Inventors

• Ander Svantesson · Tollered, SE
• Karl-Gunnar Lindblad · Vårgårda, SE

Key dates

• Filing date: Jun 15, 2001
• Grant date: Apr 6, 2004
• Expiry date: Aug 23, 2021

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60N2205/30
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A head-rest arrangement for a motor vehicle includes a rear part and a front part mounted on the rear part by a parallel arm linkage. A spring biases the front part forwardly. A releasable catch holds the two parts together until a sensor senses a rear impact. The front part is movable forwardly relatively freely once the catch is released. Any subsequent rearward movement of the front part is resisted by an energy-absorbing element which converts energy to a form no longer available to bias the front part of the head-rest forwardly.