IP Library Granted Patent US 8,919,877
Granted Patent B2
US 8,919,877 · App. 13/739,726 · Granted Dec 30, 2014

Head restraint for a vehicle seat

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Quick Facts
Patent No.
US 8,919,877
App. No.
13/739,726
Granted
Dec 30, 2014
Kind
B2
Abstract

A head restraint for a vehicle seat is provided. The head restraint includes a basic body and a foam body surrounding the basic body. The foam body at a front has a contact surface for a head of a person using the vehicle seat, and a front surface of the basic body facing the contact surface has a vertically running concave curvature. The basic body in a region of an upper end of the contact surface comprises a ramp, which, with respect to a portion of the front surface of the basic body arranged below this upper end, is directed towards the front.

Claims (21)

1. A head restraint for a vehicle seat, the head restraint comprising:

a basic body includes a depression formed in a front surface of the basic body and having a vertically running concave curvature and a horizontally running concave curvature, and

a foam body surrounding the basic body, wherein the foam body at a front comprises a contact surface for a head of a person using the vehicle seat, and the front surface of the basic body facing the contact surface, wherein the basic body in a region of an upper end of the contact surface comprises a ramp, which with respect to a portion of the front surface of the basic body arranged below the upper end is directed towards the front.

2. The head restraint according to claim 1 , wherein the head restraint is for a backrest of a motor vehicle seat.

3. The head restraint according to claim 1 , wherein the basic body is configured stiff.

4. The head restraint according to claim 1 , wherein the basic body is in one piece.

5. The head restraint according to claim 1 , wherein the basic body is formed of plastic.

6. The head restraint according to claim 5 , wherein the basic body is formed as plastic injection molding.

7. The head restraint according to claim 1 , wherein a surface of the basic body in a lower portion is arranged substantially vertically.

8. The head restraint according to claim 7 , wherein the surface of the basic body in a region of the lower half of the basic body is arranged substantially vertically.

9. The head restraint according to claim 1 , wherein the basic body is completely surrounded by the foam body.

10. The head restraint according to claim 1 , wherein the ramp extends in width direction of the basic body in a region of its upper end.

11. The head restraint according to claim 10 , wherein the ramp extends in width direction of the basic body in the region of its upper end, in a middle region of the basic body.

12. The head restraint according to claim 1 , wherein a front end of the ramp runs along a horizontal direction.

13. The head restraint according to claim 1 , wherein a thickness of the foam body in the region of the ramp is smaller than the thickness of the foam body in a region of the contact surface located below the ramp.

14. The head restraint according to claim 13 , wherein the thickness of the foam body from the region of the ramp as far as to a lower end of the basic body increases in size.

15. The head restraint according to claim 1 , wherein a thickness of the foam body between the ramp of the basic body and the contact surface of the foam body is about 8 to about 10 mm and the thickness of the foam body from the ramp as far as to a vertical middle of a surface of the basic body increases to about 12 to about 18 mm.

16. The head restraint according to claim 15 , wherein the thickness of the foam body between the ramp of the basic body and the contact surface of the foam body is about 8 to about 10 mm and the thickness of the foam body from the ramp as far as to a vertical lower end of the surface of the basic body increases to about 25 to about 30 mm.

17. The head restraint according to claim 1 , wherein the foam body in a region of the contact surface comprises an upper protrusion directed towards the front at a top and a lower protrusion directed towards the front at a bottom.

18. The head restraint according to claim 17 , wherein a line touching the upper and lower protrusions is arranged at an angle of ≧0°, wherein at an angle >0° the lower protrusion is arranged in front of the upper protrusion.

19. The head restraint according to claim 1 , wherein the foam body in a region of the contact surface comprises a horizontal, concave curvature and/or vertical, concave curvature adapted to a curvature of the head of a vehicle occupant in a region at a back of the head of the vehicle occupant.

Assignments (2)
RELEASE OF SECURITY INTEREST Recorded Nov 7, 2014
From: WILMINGTON TRUST COMPANY
To: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Reel/Frame 034287/0601 →
SECURITY INTEREST Recorded Jun 12, 2014
From: GM GLOBAL TECHNOLOGY OPERATIONS LLC
To: WILMINGTON TRUST COMPANY
Reel/Frame 033135/0336 →