Head restraint, in particular for a motor vehicle

Patent metadata

Field	Value
Publication number	US-9308844-B2
Application number	US-201113582305-A
Country	US
Kind code	B2
Filing date	Jan 12, 2011
Priority date	Mar 5, 2010
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

The invention relates to a head restraint for a vehicle seat, in particular for a motor vehicle seat, wherein the head restraint has a cushion part facing the head of a seat occupant, a main body, and a comfort adjustment device, wherein in a usage situation of the head restraint the cushion part can be adjusted relative to the main body from a first position that is farther from the head of the seat occupant to a second position that is closer to the head of the occupant by means of the comfort adjustment device, wherein the cushion part can also be adjusted from the second position in the direction of the first position by means of the comfort adjustment device, wherein this requires a front extreme position of the cushion part to be set.

First claim

The invention claimed is:

1. A head restraint for a vehicle seat comprising a cushion part configured to be positioned rearward of a head of a seat occupant along a longitudinal axis and to face the head of the seat occupant, a main body, and a comfort adjustment device, wherein the cushion part is positioned forward of the main body along the longitudinal axis, the comfort adjustment device is positioned between the cushion part and the main body along the longitudinal axis, the cushion part is directly rotatably coupled to the main body, the cushion part is movable relative to the main body only by pivoting movement about a substantially horizontal rotational axis, and the substantially horizontal rotational axis is located above the comfort adjustment device in a vertical direction;
wherein in a usage situation of the head restraint, the cushion part is able to be adjusted relative to the main body by the comfort adjustment device from a first position configured to be further removed from the head of the seat occupant into a second position forward of the first position along the longitudinal axis and configured to be closer to the head of the seat occupant, wherein the cushion part may also be adjusted by the comfort adjustment device from the second position in the direction of the first position only by movement of the cushion part to a front extreme position that is forward of the second position;
wherein the comfort adjustment device has a control element which is adjustable into a locked position and into an unlocked position, wherein with an adjustment of the control element into the locked position, a direct movement of the cushion part is possible from the first position into the second position, a movement of the cushion part being blocked in the opposing direction, however, and wherein with an adjustment of the control element into the unlocked position, a direct movement of the cushion part is possible from the first position into the second position and from the second position into the first position;
wherein the comfort adjustment device comprises a latching tooth system configured to interact with the control element, and the latching tooth system comprises a first bearing surface configured to drive the control element to the locked position via contact with a second bearing surface of the control element upon movement of the cushion part to a rear extreme position, rearward of the first position along the longitudinal axis;
wherein the control element is configured to move with the cushion part relative to the main body, and the latching tooth system is connected to the main body.

2. The head restraint as claimed in claim 1 , wherein an adjustment force sufficient to move the cushion part from the first position into the second position is greater in a region proximate to the front extreme position.

3. The head restraint as claimed in claim 1 , wherein the cushion part may be adjusted into a plurality of latching positions, including the first position and the second position, wherein an adjustment force sufficient to move the cushion part in a forward direction is greater within a region between a forward-most latching position of the plurality of latching positions and the front extreme position.

4. The head restraint as claimed in claim 2 , comprising a leaf spring configured to increase the adjustment force.

5. The head restraint as claimed in claim 2 , comprising a spiral spring configured to increase the adjustment force.

Assignees

• Guenther Benjamin
• Johnson Controls Tech Co

Inventors

• Guenther Benjamin
• Stein Alexander

Classifications

• B60N2/4847

  Operations & Transport · mapped topic

• B60N2/4864 Primary

  Operations & Transport · mapped topic

• B60N2/865

  providing a fore-and-aft movement with respect to the occupant's head · CPC title

• B60N2/847 Primary

  with stepwise positioning · CPC title

• A47C7/38 Primary

  for the head, e.g. detachable · CPC title