Headrest assembly

• US 10,737,603 B2
• Filed: 10/27/2016
• Issued: 08/11/2020
• Est. Priority Date: 10/27/2016
• Status: Active Grant

• Current Assignee: Daimay North America Automotive, Inc.
• Original Assignee: Daimay North America Automotive, Inc.
• Inventors: Jiang, Yingtai, Wang, Jianhua, Tang, Guojun
• Primary Examiner(s): White, Rodney B
• Application Number:
  US15/737,989
• Publication Number:
  US 20200031264A1
• Time in Patent Office: 1,384 Days
• Field of Search: 297408, 297 61
• 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 2/874 movable to an inoperative or stowed position B60N2/832, B60N2/856 take precedence
• CPC Class Codes: B60N 2/876 specially adapted for rear seats B60N2/835, B60N2/859 take precedence
• CPC Class Codes: F16C 1/18 in which the end portion of the flexible member is laid along a curved surface of a pivoted member

Abstract

A headrest assembly according to an exemplary aspect of the present disclosure includes, among other things, a head restraint including a push-button and a cam rotatable by a pull cable. The head restraint is moveable from an upright position to a folded position by movement of the push-button or the cam.

Claims

1. A headrest assembly, comprising:

a head restraint including a push-button and a cam rotatable by a pull cable, wherein the head restraint is moveable from an upright position to a folded position by movement of the push-button or movement of the cam caused by application of a pulling force onto the pull cable;

wherein the head restraint includes a locking plate and a locking trigger engaged with the locking plate when the head restraint is in the upright position, and

wherein the locking trigger is configured to disengage the locking plate in response to movement of the push-button or the cam,

wherein the push-button is directly coupled to a push-pin,

wherein the push-pin is directly coupled to a push-lever,

wherein the push-lever is directly coupled to the locking trigger,

wherein the push-lever is configured to translate linear movement of the push-pin into rotational movement of the locking trigger, and

wherein the push-lever is pivotable about an axis perpendicular to an axis of rotation of the locking trigger.

2. The headrest assembly as recited in claim 1, wherein the cam is rotatably moveable in response to movement of a pull-cable connected to the cam.

3. A headrest assembly, comprising:

a head restraint including a push-button and a cam rotatable by a pull cable, wherein the head restraint is moveable from an upright position to a folded position by movement of the push-button or movement of the cam caused by application of a pulling force onto the pull cable,

the head restraint includes a locking plate and a locking trigger engaged with the locking plate when the head restraint is in the upright position, and

the locking trigger is configured to disengage the locking plate in response to movement of the push-button or the cam,

wherein the cam is rotatably moveable in response to movement of a pull-cable connected to the cam,

wherein the cam is coupled to a cam trigger,

wherein the cam trigger is coupled to the locking trigger by a rotatable shaft, and

wherein rotational movement of the cam trigger causes rotational movement of the locking trigger.

4. A headrest assembly, comprising:

a head restraint including a push-button and a cam rotatable by a pull cable;

wherein the head restraint is moveable from an upright position to a folded position by movement of the push-button or the cam,

wherein the head restraint includes a locking plate and a locking trigger engaged with the locking plate when the head restraint is in the upright position,

wherein the locking trigger is configured to disengage the locking plate in response to movement of the push-button or the cam,

wherein the cam is rotatably moveable in response to movement of a pull-cable connected to the cam,

wherein the cam is coupled to a cam trigger,

wherein the cam trigger is coupled to the locking trigger by a rotatable shaft;

wherein rotational movement of the cam trigger causes rotational movement of the locking trigger,

wherein the cam is configured to rotate from a resting position by a first amount of rotation to release the locking trigger from the locking plate, and

wherein the cam is configured to rotate to by a second amount of rotation greater than the first amount of rotation in response to additional movement of the pull-cable.

5. The headrest assembly as recited in claim 4, wherein the second amount of rotation is about 40°

greater than the first amount of rotation.

6. The headrest assembly as recited in claim 5, wherein:

the cam includes a flat surface, and

the cam trigger is engaged with the flat surface from a resting position until the cam is rotated by the first amount of rotation.

7. A seat for a motor vehicle, comprising:

a seat back;

a pull-cable;

a headrest assembly, comprising;

a head restraint including a push-button and a cam rotatable by a pull cable, wherein the head restraint is moveable from an upright position to a folded position by movement of the push-button or the cam; and

an actuator configured to pull the pull-cable to move the head restraint to a folded position and to fold the seat back,

wherein the head restraint includes a locking plate and a locking trigger engaged with the locking plate when the head restraint is in the upright position,

wherein the locking trigger is configured to disengage the locking plate in response to movement of the push-button or the cam,

wherein the push-button is directly coupled to a push-pin,

wherein the push-pin is directly coupled to a push-lever,

wherein the push-lever is directly coupled to the locking trigger,

wherein the push-lever is configured to translate linear movement of the push-pin into rotational movement of the locking trigger, and

wherein the push-lever is pivotable about an axis perpendicular to an axis of rotation of the locking trigger.

8. The seat as recited in claim 7, the cam is rotatably moveable in response to movement of a pull-cable connected to the cam.

9. The seat as recited in claim 8, wherein:

the cam is coupled to a cam trigger,

the cam trigger is coupled to the locking trigger by a rotatable shaft, and

rotational movement of the cam trigger causes rotational movement of the locking trigger.

10. The seat as recited in claim 9, wherein:

the cam is configured to rotate from a resting position by a first amount of rotation to release the locking trigger from the locking plate, and

the cam is configured to rotate to by a second amount of rotation greater than the first amount of rotation in response to additional movement of the pull-cable.

11. The seat as recited in claim 10, wherein the second amount of rotation is about 40°

greater than the first amount of rotation.

12. The seat as recited in claim 11, wherein:

the cam includes a flat surface,

and the cam trigger is engaged with the flat surface from a resting position until the cam is rotated by the first amount of rotation.