Folding vehicle head restraint assembly

• US 8,851,574 B2
• Filed: 12/05/2012
• Issued: 10/07/2014
• Est. Priority Date: 05/06/2009
• Status: Active Grant

• Current Assignee: Lear Corporation
• Original Assignee: Lear Corporation
• Inventors: Yetukuri, Arjun, Smith, Ted, Bade, Kailas, Garge, Manish
• Primary Examiner(s): WHITE, RODNEY BARNETT
• Application Number:
  US13/705,640
• Publication Number:
  US 20130140866A1
• Time in Patent Office: 671 Days
• Field of Search: 297/408
• US Class Current: 297/408
• CPC Class Codes: B60N 2/844 Release mechanisms, e.g. buttons
• CPC Class Codes: B60N 2/853 characterised by their adjusting mechanisms, e.g. electric motors
• CPC Class Codes: B60N 2/859 specially adapted for rear seats

Abstract

A head restraint assembly is provided to be mounted within a vehicle. A head restraint is supported by the cross member in a lateral direction and adapted to rotate about a lateral axis of the cross member. A fixed locking member is mounted within the head restraint. A latch is mounted to slide on the cross member between a first latch position engaged with the locking member and at a second latch position released from the fixed locking member. A lever is provided proximate the latch to move the latch between the first latch position and the second latch position. A motor is in communication with the lever such that the motor moves the lever to translate the latch from the first latch position to the second latch position. The head restraint is rotatable about the cross member when the latch is in the second latch position.

Claims

1. A head restraint assembly comprising:

a cross member extending in a lateral direction and adapted to be mounted within a vehicle;

a head restraint supported by the cross member and adapted to rotate about a lateral axis of the cross member;

a fixed locking member mounted within the head restraint;

a latch mounted to slide on the cross member between a first latch position engaged with the locking member and at a second latch position released from the fixed locking member;

a lever provided proximate the latch to move the latch between the first latch position and the second latch position;

a motor in communication with the lever such that the motor moves the lever to translate the latch from the first latch position to the second latch position; and

an attachment device connected between the lever and the motor which allows pivotal movement of the lever and linear movement of a motor linkage while maintaining a connection therebetween,

wherein the head restraint is rotatable about the cross member when the latch is in the second latch position.

2. The head restraint assembly of claim 1 wherein the latch is mounted to slide on the cross member such that when the latch slides in a linear direction along the cross member, the latch moves from the first latch position to the second latched position.

3. The head restraint assembly of claim 1 wherein the fixed locking member further comprises a pin mounted on the cross member and wherein the latch has a release slot that allows movement of the latch relative to the pin such that when the latch is in the second latch position, the head restraint pivots about the cross member.

4. The head restraint assembly of claim 3 further comprising a biasing member mounted to the head restraint and the latch to bias the latch to allow the latch to move relative to the pin.

5. The head restraint assembly of claim 3 wherein the release slot moves relative to the pin in a first direction as the latch moves along the cross member and the release slot moves relative to the pin in a second direction as the head restraint pivots about the cross member.

6. The head restraint assembly of claim 1 further comprising a biasing member to move the head restraint from a first head restraint position to a second head restraint position when the latch is in the second latch position.

7. The head restraint assembly of claim 1 wherein the motor moves the motor linkage and attachment device linearly in a lateral direction parallel to the movement of the latch.

8. The head restraint assembly of claim 1 wherein the attachment device comprises a tab that engages with a guide slot formed on the lever.

9. A head restraint assembly comprising:

a cross member extending in a lateral direction and adapted to be mounted within a vehicle;

a head restraint supported by the cross member;

a locking member mounted within the head restraint;

a slide latch mounted to slide on the cross member to a first latch position engaged with the locking member and slide linearly in the lateral direction along the cross member to a second latch position released from the locking member;

a lever pivotally supported by the head restraint and in communication with the latch, wherein pivoting the lever thereby slides the latch between the first latch position and the second latch position;

a motor in communication with the lever such that the motor moves the lever to translate the latch from the first latch position to the second latch position; and

an attachment device connected between the lever and the motor which allows pivotal movement of the lever and linear movement of a motor linkage while maintaining a connection therebetween,

wherein the head restraint is pivotable about the cross member when the latch is in the second latch position.

10. The head restraint assembly of claim 9 wherein the motor moves the motor linkage and attachment device linearly in a lateral direction parallel to the movement of the slide latch.

11. The head restraint assembly of claim 9 wherein the attachment device comprises a tab that engages with a guide slot formed on the lever.

12. The head restraint assembly of claim 9 wherein the cross member further comprises at least one terminal end adapted to be mounted within the vehicle.

13. The head restraint assembly of claim 9 wherein the locking member includes a pin, and wherein the latch has a release slot that allows movement of the latch relative to the pin such that when the latch is in the second latch position, the head restraint pivots about the cross member.

14. A head restraint assembly comprising:

a lateral cross member adapted to be mounted within a vehicle;

a head restraint pivotally supported by the cross member, such that the head restraint pivots about a lateral axis of the cross member in order to move the head restraint between an upright position and a stowed position;

a locking member mounted within the head restraint;

a latch mounted on the cross member, wherein the latch slides linearly in a lateral direction along the cross member between at least a first latch position where the latch is engaged with the locking member and a second latch position where the latch is released from the locking member;

a motor mounted within the head restraint connected with the latch such that the motor translates the latch from the first latch position to the second latch position, and releases the latch from the locking member for permitting movement of the head restraint from the upright position to the stowed position;

a lever arm pivotally mounted within the head restraint and connecting the motor and the latch; and

an attachment device connected between the lever arm and the motor which allows pivotal movement of the lever arm and linear movement of a motor linkage while maintaining a connection therebetween.

15. The head restraint assembly of claim 14 wherein the locking member includes a pin, and wherein the latch has a release slot that allows movement of the latch relative to the pin such that when the latch is in the second latch position, the head restraint pivots about the cross member.

16. The head restraint assembly of claim 14 wherein the motor moves the motor linkage and attachment device linearly in a lateral direction parallel to the movement of the latch.