Portable chair

Patent metadata

Field	Value
Publication number	US-11389003-B2
Application number	US-202017135535-A
Country	US
Kind code	B2
Filing date	Dec 28, 2020
Priority date	Jan 12, 2018
Publication date	Jul 19, 2022
Grant date	Jul 19, 2022

Abstract

A folding chair can include a seat pan being formed by a pair of seat bars. The seat pan can be tensioned by a pair of vertical legs. The chair can also include a backrest formed by a pair of diagonally extending backrest bars, a front frame formed by a pair of cross bars, a rear frame formed by rear cross bars, and a pair of armrests. The vertical legs can each be provided with a lower leg and an upper leg. The inner leg can be configured to telescope out of the outer leg and at least one of the vertical legs can be provided with a latch for locking the outer leg to the inner leg. The latch can include a trigger and a projection can be configured to rotate the projection out of a slot formed in the inner leg.

First claim

The invention claimed is:

1. A folding chair comprising:
a front frame;
a rear frame;
a seat pan;
a backrest;
a pair of arm rests; and
a pair of vertical legs;
wherein the vertical legs are each provided with an inner leg and an outer leg and the inner leg is configured to telescope out of the outer leg,
wherein each of the vertical legs include a leg locking system for locking the outer leg to the inner leg when the chair is in an unfolded position,
wherein the leg locking system includes a trigger housing, a trigger, and a latch,
wherein the latch is configured to engage a bushing on the inner leg, and
wherein the trigger and the trigger housing are substantially upside-down “L” shaped.

2. The folding chair of claim 1 , wherein the bushing on the inner leg further includes a slot, and wherein the latch further includes a lower projection configured to engage the slot in a locked position.

3. The folding chair of claim 2 , wherein the trigger is pressed upwards to rotate the lower projection out of the slot in the bushing thereby unlocking the inner leg.

4. The folding chair of claim 3 , wherein the slot is generally rectangular shaped and further includes a plurality of notches configured to engage the lower projection, and wherein the plurality of notches corresponds to a plurality of different telescoping leg positions.

5. The folding chair of claim 4 , wherein the inner leg telescopes out of the outer leg when the leg locking system is in an unlocked position, and wherein the chair is foldable in the unlocked position.

6. The folding chair of claim 1 , wherein the leg locking system is hingedly coupled to an underside of the pair of armrests.

7. The folding chair of claim 1 further comprising a cup holder engaged with a vertical leg.

8. The folding chair of claim 1 , wherein the seat pan and the backrest are formed of a suspension fabric comprising a first yarn, a second yarn, and a thermoplastic polyurethane film, wherein the first yarn is a polymer and the second yarn is more elastomeric than the first yarn, and wherein the thermoplastic polyurethane film is heat pressed to the first yarn and second yarn.

9. The folding chair of claim 7 , wherein the backrest includes a tensioner configured to maintain the backrest in a tensioned position, the tensioner comprising a rear tensioner handle, and a pair of rear tensioner arms.

10. The folding chair of claim 9 , wherein the tensioner further comprises at least one internal stop and a plurality of pivot points.

11. A method of forming a folding chair comprising:
forming a seat pan comprising a pair of seat bars, a pair of vertical legs configured to tension the seat pan, a locking system, a backrest comprising a pair of diagonally extending backrest bars, a front frame comprising a pair of cross bars, a rear frame comprising rear cross bars, and a pair of armrests;
wherein the seat pan and the backrest are formed of a suspension fabric having an overlap and a core placed into a hollow section created by the overlap,
wherein the core in the hollow section is secured in a notch asymmetrically located in a top portion of the pair of diagonally extending backrest bars,
wherein the vertical legs further comprise an inner leg and an outer leg,
wherein the inner leg is configured to telescope out of the outer leg, and
wherein each of the vertical legs include the leg locking system configured to lock the outer leg to the inner leg when the chair is in an unfolded position.

12. The method of claim 11 further comprising forming a cup holder configured to engage a vertical leg.

13. The method of claim 12 , wherein the cup holder is formed from a canvas or a hard molded plastic.

14. The method of claim 11 further comprising forming the seat pan and the backrest from a first yarn, a second yarn, and a thermoplastic polyurethane film.

15. The method of claim 14 , wherein the first yarn is a polymer and the second yarn is more elastomeric than the first yarn.

16. The method of claim 14 , wherein the first yarn and the second yarn are weaved.

17. The method of claim 14 , wherein the thermoplastic polyurethane film is heat pressed to the first yarn and second yarn.

18. The method of claim 17 , wherein the thermoplastic polyurethane film includes a thickness of at least 0.1 mm.

19. The method of claim 17 , wherein the thermoplastic polyurethane film includes a melting point lower than melting points of the first yarn and second yarn.

20. A folding chair comprising:
a front frame;
a rear frame;
a seat pan;
a backrest;
a pair of arm rests;
a pair of vertical legs; and
a rear tensioner;
wherein the vertical legs are each provided with an inner leg and an outer leg and the inner leg is configured to telescope out of the outer leg,
wherein each of the vertical legs include a leg locking system for locking the outer leg to the inner leg when the chair is in an unfolded position,
wherein the rear tensioner is configured to maintain the backrest in a tensioned position, the tensioner comprising a rear tensioner handle, and a pair of rear tensioner arms.

Assignees

• Yeti Coolers Llc

Inventors

• Winterhalter Andrew J
• Cieszko Michael
• Goldberg Evan
• Sullivan Derek
• Desroches Donald Edward

Classifications

• A47C4/48

  with cross legs · CPC title

• A47C4/38

  with cross legs · CPC title

• A47C4/30 Primary

  Attachment of upholstery or fabric to frames · CPC title

• A47C4/32

  having a frame made of wood or plastics · CPC title

• A47C4/42

  having a frame made of metal · CPC title