Patent · US Expired

Headrest for motor vehicle

US7293829B2 · kind B2 · utility

10Cited by

5References

18Claims

0Family size

Assignee

Medical Instill Technologies, Inc. · US

Inventors

Thomas Thiel · Solingen, DE
Rolf Steinmetz · Mülheim an der Ruhr, DE
Burkhard Becker · Ismaning, DE

Key dates

Filing date	Jan 4, 2006
Grant date	Nov 13, 2007
Priority date	—
Expiry date	Jan 4, 2026

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60N2/888
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

The headrest has a first structural component for fastening the headrest to a seat back of a motor vehicle seat and a second structural component that is movable with respect to said first structural component in the event of a crash. A drive unit is disposed between the first structural component and the second structural component and comprises a locking unit, which is locked in the normal case, and a crash sensor connected to the locking unit which it controls. The locking unit comprises a disengagement drive with an electromagnet or a piezoelectric drive. The locking unit has one retainer member associated with the first structural component and one movable disengagement member associated with the second structural component. Retainer member and disengagement member are connected together via a hinge or via balls. The disengagement drive is capable of causing said disengagement member to move.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.