Pull actuator release for reclining seats

Patent metadata

Field	Value
Publication number	US-10696191-B2
Application number	US-201615773043-A
Country	US
Kind code	B2
Filing date	Jun 7, 2016
Priority date	Nov 3, 2015
Publication date	Jun 30, 2020
Grant date	Jun 30, 2020

Abstract

Seat assemblies including a substantially perpendicular pull actuator release are described. The seat assemblies can include a seat and a seat recline mechanism. The seat can include a back portion and a seat pan. The seat recline mechanism can include a gas spring, a control cable, an actuator, a frame, and a lever. The gas spring can include a release mechanism. The actuator can couple to a first end of the control cable. The lever can include a pivot location, a first arm, and a second arm. The first arm can couple to the second end of the control cable. The lever can respond to a pulling force exerted by the actuator on the control cable by rotating about the pivot location such that the second arm engages the release mechanism of the gas spring to allow the back portion to rotate relative to the seat pan.

First claim

That which is claimed is:

1. A seat assembly comprising:
a seat with a seat pan and back portion; and
a seat recline mechanism comprising:
a gas spring with a release mechanism, the gas spring including a first part coupled to the back portion of the seat and a second part coupled to the seat pan;
a control cable with a first end and a second end;
an actuator coupled to the first end of the control cable;
a frame with an opening in a section of the frame, the opening for housing a portion of the release mechanism; and
a lever with a pivot location coupled to the frame, and comprising:
a first arm extending from the pivot location; and
a second arm extending from the pivot location and forming an angle α between the first arm and the second arm with the pivot location forming a vertex of the angle α,
a spring mechanism for biasing the lever, wherein the spring mechanism is coupled between the second arm and the frame,
wherein the second end of the control cable is coupled to a portion of the first arm that is spaced apart from the second arm, and
wherein the lever is configured to respond to a pulling force exerted by the actuator on the first end of the of the control cable by rotating about the pivot location toward the frame such that the second arm of the lever engages the release mechanism of the gas spring to allow the back portion to rotate relative to the seat pan.

2. The seat assembly of claim 1 , wherein the seat is a passenger seat on a passenger aircraft, and the actuator includes a button on an armrest of the passenger seat for applying the pulling force to the first end of the control cable when depressed.

3. The seat assembly of claim 1 , wherein the second end of the control cable is arranged substantially perpendicular to a longitudinal axis of the gas spring.

4. The seat assembly of claim 1 , wherein the second end of the control cable is arranged substantially parallel to the section of the frame.

5. The seat assembly of claim 1 , wherein the section of the frame is a first section, the opening in the first section is a first opening, and the frame includes a second section substantially perpendicular to the first section with a second opening for allowing a segment of the control cable to pass therethrough.

6. The seat assembly of claim 5 , wherein the seat recline mechanism further comprises:
a sleeve for housing the control cable, the sleeve extending from the second section of the frame to the actuator; and
the spring mechanism is coupled at one end to the second arm of the lever such that the gas spring prevents the back portion from rotating relative to the seat pan.

7. The seat assembly of claim 1 , wherein the angle α is between 45° and 135°.

8. The seat assembly of claim 1 , wherein the first arm is for responding to the pulling force by rotating along a first arc substantially perpendicular to a longitudinal axis of the release mechanism, and the second arm is for responding to the pulling force by rotating along a second arc substantially parallel to the longitudinal axis of the release mechanism.

9. The seat assembly of claim 1 , wherein the pulling force causes between 15° and 45° of rotation on the lever relative to the pivot location.

10. The seat assembly of claim 1 , wherein the control cable extends from the frame to the actuator without coiling around the frame.

11. A device comprising:
a frame comprising:
a first section defining a first opening for housing a release mechanism of a gas spring;
a second section extending from the first section and defining a second opening for housing a portion of a control cable; and
a third section extending from the first section and defining a pivot location; and

a lever coupled to the frame at the pivot location and biased to a first orientation relative to the frame, and comprising:
a first arm extending in a first direction, wherein the first arm is couplable to an end of the control cable and configured to respond to a pulling force applied to the control cable by causing the lever to rotate about the pivot location to a second orientation relative to the frame; and
a second arm extending from the first arm in a second direction, wherein an angle α is defined between the first arm and the second arm, and wherein, in the second orientation of the lever, the second arm is configured to apply a depressing force to the release mechanism of the gas spring to allow a back portion to rotate relative to a seat pan of a seat; and

a spring mechanism for biasing the lever to the first orientation and positioned between the second section of the frame and the second arm of the lever.

12. The device of claim 11 , wherein the seat is a passenger seat on an aircraft, and the passenger seat includes an armrest with a button for pulling the control cable when depressed.

13. The device of claim 12 , wherein the first arm is for responding to the pulling force by rotating substantially side-to-side in relation to the aircraft, and the second arm is for responding to the pulling force by rotating substantially aft-to-forward in relation to the aircraft.

14. The device of claim 11 , wherein the end of the control cable is arranged substantially perpendicular to a longitudinal axis of the gas spring.

15. The device of claim 11 , wherein the end of the control cable is arranged substantially parallel to the first section of the frame.

16. The device of claim 11 , wherein the second section is substantially perpendicular to the first section and the second opening allows for a segment of the control cable to pass therethrough.

17. The device of claim 11 , wherein
the spring mechanism is coupled at a first end to the second arm of the lever and at a second end to the second section of the frame, and
wherein the angle α is between 45° and 135°.

Assignees

• Safran Seats Usa Llc

Inventors

• Does Sebastiaan

Classifications

• B64D11/064 Primary

  Adjustable inclination or position of seats · CPC title

• B60N2/23

  by {linear actuators, e.g.} linear screw mechanisms · CPC title

• Y02T50/40

  Weight reduction · CPC title

• B60N2/79

  Adaptations for additional use of the arm-rests · CPC title

• F16H21/44

  for conveying or interconverting oscillating or reciprocating motions · CPC title