Extension assist for headrest

Patent metadata

Field	Value
Publication number	US-10668844-B2
Application number	US-201816128749-A
Country	US
Kind code	B2
Filing date	Sep 12, 2018
Priority date	Sep 12, 2018
Publication date	Jun 2, 2020
Grant date	Jun 2, 2020

Abstract

A headrest extension assist system is disclosed. In embodiments, a headrest extension assist system includes a headrest extension assembly movably coupled to a backrest assembly. The headrest extension assist system may further include an extension assist assembly. The extension assist assembly may be coupled to the headrest extension assembly at one end, and a fixed point relative to the headrest extension assembly at another end. The extension assist assembly exerts an extension force on the headrest extension assembly to offset, or partially offset, an extension resistance force. The extension assist assembly exerts the extension force to extend the headrest extension assembly to at least one of a retracted position, an intermediate position, and an extended position.

First claim

What is claimed is:

1. An extension assist system, comprising:
a headrest extension assembly comprising a headrest and one or more extension members movably coupled to a backrest assembly of a seat, the headrest extension assembly configured to translate along a movement axis between at least a retracted position and an extended position; and
an extension assist assembly with a first end and a second end, the first end coupled to the one or more extension members and the second end coupled to a fixed point relative to the headrest extension assembly, the extension assist assembly configured to exert an extension force parallel to the movement axis, the extension force configured to counter-balance a weight of the headrest extension assembly and facilitate movement of the headrest extension assembly by a user, wherein the extension force is less than an extension resistance force acting parallel to the movement axis in a direction opposite the extension force.

2. The extension assist system of claim 1 , wherein the extension assist assembly comprises a gas spring assembly.

3. The extension assist system of claim 1 , wherein the extension assist assembly is loaded in compression and is configured to extend to translate the headrest extension assembly from the retracted position to the extended position.

4. The extension assist system of claim 1 , wherein the extension assist assembly is loaded in extension and is configured to retract to translate the headrest extension assembly from the retracted position to the extended position.

5. The extension assist system of claim 1 , wherein the extension force is between two and five pounds less than the extension resistance force.

6. The extension assist system of claim 1 , wherein the extension assist assembly is configured to extend along an extension axis that is parallel to the movement axis.

7. The extension assist system of claim 1 , wherein the extension assist assembly is configured to extend along an extension axis that is not parallel to the movement axis.

8. An extension assist system, comprising:
an extension assembly comprising an extension panel and one or more extension members movably connected to a body assembly, the extension assembly configured to translate along a movement axis between at least a retracted position and an extended position; and
an extension assist assembly with a first end and a second end, the first end coupled to the one or more extension members and the second end coupled to a fixed point relative to the extension assembly, the extension assist assembly configured to exert an extension force parallel to the movement axis, the extension force configured to counter-balance a weight of a headrest extension assembly and facilitate movement of the headrest extension assembly by a user, wherein the extension force is less than an extension resistance force acting parallel to the movement axis in a direction opposite the extension force.

9. The extension assist system of claim 8 , wherein the extension assist assembly comprises a gas spring assembly.

10. The extension assist system of claim 8 , wherein the extension assist assembly is loaded in compression and is configured to extend along an extension axis to translate the extension assembly from the retracted position to the extended position.

11. The extension assist system of claim 8 , wherein the extension assist assembly is loaded in extension and is configured to retract along an extension axis to translate the extension assembly from the retracted position to the extended position.

12. The extension assist system of claim 8 , wherein the extension force is between two and five pounds less than the extension resistance force.

13. The extension assist system of claim 8 , wherein the extension assist assembly is configured to extend along an extension axis that is parallel to the movement axis.

14. The extension assist system of claim 8 , wherein the extension assist assembly is configured to extend along an extension axis that is not parallel to the movement axis.

15. An extension assist assembly for a seat headrest, comprising:
a gas spring assembly with a first end and a second end, the first end coupled to one or more extension members of a headrest extension assembly and the second end coupled to a fixed point relative to the headrest extension assembly, the gas spring assembly configured to exert an extension force along an extension axis, the extension force configured to translate the headrest extension assembly along a movement axis between at least a retracted position and an extended position, the extension force configured to counter-balance a weight of the headrest extension assembly and facilitate movement of the headrest extension assembly by a user, the extension force less than an extension resistance force acting parallel to the movement axis in a direction opposite the extension force.

16. The extension assist assembly of claim 15 , wherein the gas spring assembly is loaded in compression and is configured to extend along the extension axis to translate the extension assembly from the retracted position to the extended position.

17. The extension assist assembly of claim 15 , wherein the gas spring assembly is loaded in extension and is configured to retract along an extension axis to translate the extension assembly from the retracted position to the extended position.

18. The extension assist assembly of claim 15 , wherein the extension force is between two and five pounds less than the extension resistance force.

19. The extension assist assembly of claim 15 , wherein the gas spring assembly is configured to extend along the extension axis that is parallel to the movement axis.

20. The extension assist assembly of claim 15 , wherein the gas spring assembly is configured to extend along an extension axis that is not parallel to the movement axis.

Assignees

• Rockwell Collins Inc

Inventors

• Iossifidis John

Classifications

• B60N2/829 Primary

  characterised by their adjusting mechanisms, e.g. electric motors · CPC title

• B64D11/0642

  Adjustable headrests · CPC title

• B60N2/809 Primary

  vertically slidable · CPC title

• B60N2/897

  with sleeves located in the back-rest for guiding the rods of the head-rest · CPC title