Kinetic seat assemblies having dampers for fixed components and movable components including lateral damping mechanisms and fluid reservoirs

Patent metadata

Field	Value
Publication number	US-12304369-B2
Application number	US-202217873703-A
Country	US
Kind code	B2
Filing date	Jul 26, 2022
Priority date	Jul 29, 2021
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

A kinetic seat assembly includes a primary seat cushion frame, a secondary seat cushion frame movable relative to the primary seat cushion frame, a primary seat back frame, a secondary seat back frame movable relative to the primary seat back frame, a pair of lateral dampers extending between the primary seat back frame and the secondary seat back frame, a pair of vertical dampers extending between the secondary seat back frame and the primary seat cushion frame, a pair of fluid reservoirs for providing a fluid into the pair of lateral dampers and the pair of vertical dampers, and an electronic control unit configured to control the rate at which the fluid is provided to and drawn out of each of the dampers to control a damping effect. In embodiments, an end of the lateral dampers is permitted to move freely relative to the secondary seat back frame.

First claim

What is claimed is:

1. A kinetic seat assembly comprising:
a primary seat back frame;
a secondary seat back frame; and
a lateral damping mechanism including a first lateral damper and a second lateral damper, the first lateral damper and the second lateral damper extending between the primary seat back frame and the secondary seat back frame, a first end of the first lateral damper and the second lateral damper is rotatably fixed to the primary seat back frame and an opposite second end of the first lateral damper and the second lateral damper is permitted to move freely through a hole formed in a respective flange extending from the secondary seat back frame.

2. The kinetic seat assembly of claim 1 , wherein:
the first lateral damper and the second lateral damper each comprises:
an outer tube;
an inner tube permitted to extend and retract from the outer tube to adjust a length of the first lateral damper and the second lateral damper based on movement of the secondary seat back frame relative to the primary seat back frame, the inner tube having an outer diameter less than a diameter of the hole formed in the respective flange; and
a stopper provided on the inner tube to inhibit the inner tube from passing through the hole formed in the respective flange when the stopper contacts the flange.

3. The kinetic seat assembly of claim 2 , further comprising:
a bearing housing provided within the hole formed in the respective flange; and
a bearing provided within the bearing housing and defining a channel through which the inner tube slides,
wherein the bearing is rotatable within the bearing housing to permit the inner tube to pivot relative to the respective flange.

4. The kinetic seat assembly of claim 2 , wherein the first lateral damper and the second lateral damper each includes a compressible fluid providing a damping effect between the inner tube and the outer tube.

5. The kinetic seat assembly of claim 4 , wherein the first lateral damper and the second lateral damper permit movement of the secondary seat back frame relative to the primary seat back frame in a lateral direction.

6. The kinetic seat assembly of claim 4 , wherein the first lateral damper and the second lateral damper each includes an inlet for connecting to an air supply, wherein air is supplied to the first lateral damper and the second lateral damper to a predetermined amount to control a degree of damping between the primary seat back frame and the secondary seat back frame.

7. The kinetic seat assembly of claim 4 , wherein only one of the first lateral damper and the second lateral damper provides a damping effect at any given time during movement of the secondary seat back frame relative to the primary seat back frame.

8. The kinetic seat assembly of claim 7 , wherein in response to the secondary seat back frame moving in a first direction, the stopper abuts against a respective flange to cause the inner tube of the first lateral damper to compress into the outer tube of the first lateral damper to provide a damping effect, and the inner tube of the second lateral damper slides freely through the hole formed in a respective flange without compressing into the outer tube of the second lateral damper.

9. The kinetic seat assembly of claim 1 , wherein the first lateral damper and the second lateral damper each includes a ball joint provided at the first end thereof for rotatably coupling the first lateral damper and the second lateral damper to a primary seat cushion frame.

10. The kinetic seat assembly of claim 1 , wherein the primary seat back frame is a fixed seat back frame of a seat and the secondary seat back frame is a movable seat back frame of the seat.

11. A kinetic seat assembly comprising:
a primary seat cushion frame;
a secondary seat cushion frame movable relative to the primary seat cushion frame;
a primary seat back frame;
a secondary seat back frame movable relative to the primary seat back frame;
a pair of lateral dampers extending between the primary seat back frame and the secondary seat back frame; and
a first fluid reservoir for providing a fluid into the pair of lateral dampers, the first fluid reservoir operable to control a rate at which fluid is provided to and drawn out of the pair of lateral dampers to control a damping effect.

12. The kinetic seat assembly of claim 11 , further comprising:
a pair of vertical dampers extending between the secondary seat back frame and the primary seat cushion frame; and
a second fluid reservoir in fluid communication with the pair of vertical dampers.

13. The kinetic seat assembly of claim 11 , wherein:
each fluid reservoir comprises:
an upper portion including an air spring;
a lower portion containing the fluid; and
a piston movably provided within the lower portion and extending in a longitudinal direction of the fluid reservoir; and
fluid flowing in and out of the lower portion results in the piston moving in the longitudinal direction of the fluid reservoir and a pressure within the upper portion increasing and decreasing, respectively.

14. The kinetic seat assembly of claim 13 , further comprising an air pump for delivering air into the upper portion of each of the pair of fluid reservoirs.

15. The kinetic seat assembly of claim 14 , wherein each of the pair of fluid reservoirs includes an air pressure gauge for displaying a pressure within a respective fluid reservoir of the pair of fluid reservoirs.

16. The kinetic seat assembly of claim 14 , wherein each of the pair of fluid reservoirs includes a minimum pressure valve for maintaining an air pressure within a respective fluid reservoir of the pair of fluid reservoirs above a minimum air pressure threshold.

17. The kinetic seat assembly of claim 16 , wherein each of the pair of fluid reservoirs includes a maximum pressure valve for maintaining an air pressure within a respective fluid reservoir of the pair of fluid reservoirs below a maximum air pressure threshold greater than the minimum air pressure threshold.

18. The kinetic seat assembly of claim 14 , wherein each fluid reservoir further comprises a release valve for controlling an amount of fluid permitted to enter and exit an outlet of a respective fluid reservoir.

19. The kinetic seat assembly of claim 18 , wherein:
when the release valve is in a first position, the secondary seat cushion frame and the secondary seat back frame are inhibited from moving relative to the primary seat cushion frame and the primary seat back frame; and
when the release valve is in a second position, the secondary seat cushion frame and the secondary seat back frame move relative to the primary seat cushion frame and the primary seat back frame.

20. The kinetic seat assembly of claim 11 , wherein the primary seat back frame is a fixed seat back frame of a seat, the secondary seat back frame is a movable seat back frame of the seat, the primary seat cushion frame is a fixed seat cushion frame of the seat, and the secondary seat cushion frame is a movable seat cushion frame of the seat.

21. The kinetic seat assembly of claim 18 , further comprising:
an electronic control unit,
wherein the air pump is communicatively coupled to the electronic control unit for controlling the amount of air delivered to the upper portion of each of the fluid reservoirs,
wherein the release valve is communicatively coupled to the electronic control unit for controlling the release valve and adjusting an opening of the outlet.

22. A kinetic s

Assignees

• Toyota Eng & Mfg North America
• Stabilus Gmbh

Inventors

• Muck Todd Rupert
• Patterson Charles P
• Moegling Peter J
• Speck Matthew R
• Toma Leon T
• Piroth Raphael
• Löhken Lars
• Joshi Yashodhan

Classifications

• B60N2/68

  Seat frames · CPC title

• B60N2/686

  Panel like structures · CPC title

• B60N2/39

  Seats tiltable to compensate for roll inclination of vehicles · CPC title

• B60N2002/0208

  the seat or seat part turning about or moving along an inclined axis · CPC title

• B64D25/04

  Seat modifications · CPC title