Foldable chair assembly

• US 6,454,348 B1
• Filed: 05/11/2001
• Issued: 09/24/2002
• Est. Priority Date: 05/11/2001
• Status: Expired due to Fees

• Current Assignee: Wu, Chung-Sen
• Original Assignee: Wu, Chung-Sen
• Inventors: Wu, Chung-Sen
• Primary Examiner(s): WHITE, RODNEY BARNETT
• Application Number:
  US09/853,238
• Time in Patent Office: 501 Days
• Field of Search: 297/16.2, 297/35, 297/45, 297/46, 297/47
• US Class Current: 297/16.2
• CPC Class Codes: A47C 4/286 foldable side to side and front to back, e.g. umbrella type

Abstract

A foldable chair assembly includes front and rear leg rods, sleeve members sleeved slidably and respectively on the leg rods, a fabric seat connected to the sleeve members, a fabric backrest connected to the rear leg rods, and four foldable cross-frames connected pivotally to the leg rods and the sleeve members. Each of a pair of armrest rods is connected pivotally to one of the front leg rods at one end, and is connected movably to one of the rear leg rods at the other end.

Claims

1. A foldable chair assembly comprising:

a pair of upright front leg rods, each of which has an upper end portion and a lower end portion;

a pair of upright rear leg rods, each of which has an upper end portion and a lower end portion;

a pair of front sleeve members sleeved slidably and respectively on said front leg rods between said upper and lower end portions of said front leg rods;

a pair of rear sleeve members sleeved slidably and respectively on said rear leg rods between said upper and lower end portions of said rear leg rods;

a fabric seat having four corner portions connected respectively to said front and rear sleeve members;

a fabric backrest having opposite lateral sides connected respectively to said upper end portions of said rear leg rods;

a foldable front cross-frame having a lower end section connected pivotally to said lower end portions of said front leg rods, and an upper end section connected pivotally to said front sleeve members;

a foldable rear cross-frame having a lower end section connected pivotally to said lower end portions of said rear leg rods, and an upper end section connected pivotally to said rear sleeve members;

a foldable left cross-frame having a lower end section connected pivotally to said lower end portions of a first adjacent pair of said front and rear leg rods, and an upper end section connected pivotally to a first adjacent pair of said front and rear sleeve members;

a foldable right cross-frame having a lower end section connected pivotally to said lower end portions of a second adjacent pair of said front and rear leg rods, and an upper end section connected pivotally to a second adjacent pair of said front and rear sleeve members; and

a pair of armrest rods, each of which has a front end portion connected pivotally to said upper end portion of a respective one of said front leg rods, and a rear end portion connected movably to said upper end portion of a respective one of said rear leg rods.

2. The foldable chair assembly of claim 1, wherein each of said front, rear, left and right cross-frames includes first and second cross-bars having intermediate portions that are pivoted to each other.

3. The foldable chair assembly of claim 1, wherein said fabric seat has a rear end, and said fabric backrest has a lower end connected to said rear end of said fabric seat.

4. The foldable chair assembly of claim 1, wherein said upper end portion of each of said front leg rods is provided with a pivot connector for connecting pivotally with said front end portion of the respective one of said armrest rods.

5. The foldable chair assembly of claim 1, wherein said lower end portion of each of said front and rear leg rods is provided with a foot pad, said lower end sections of said front, rear, left and right cross-frames being connected pivotally to said foot pads on said front and rear leg rods.

6. The foldable chair assembly of claim 1, wherein said upper end portion of each of said rear leg rods is provided with a rod fastener for engaging removably said rear end portion of the respective one of said armrest rods.

7. The foldable chair assembly of claim 6, wherein said rod fastener has a generally U-shaped cross-section to define a clamping groove for receiving removably said rear end portion of the respective one of said armrest rods therein.

8. The foldable chair assembly of claim 7, wherein said rod fastener has a fastener wall formed with a limiting notch, said rear end portion of each of said armrest rods being formed with a radial limiting projection that engages removably said limiting notch in said rod fastener on the respective one of said rear leg rods.

9. The foldable chair assembly of claim 1, wherein each of said rear leg rods is provided with a rod fastener formed with a through-hole that permits said rear end portion of the respective one of said armrest rods to extend slidably therethrough.

10. The foldable chair assembly of claim 9, wherein said rod fastener has a fastener wall formed with a limiting notch, said rear end portion of each of said armrest rods being formed with a radial limiting projection that engages removably said limiting notch in said rod fastener on the respective one of said rear leg rods.

11. The foldable chair assembly of claim 9, wherein each of said front leg rods includes an inner tube portion that is connected pivotally to said front cross-frame and a corresponding one of said left and right cross-frames, and an outer tube portion that is connected slidably and telescopically to said inner tube portion, that has a respective one of said front sleeve members sleeved slidably thereon, and that is connected pivotally to said front end portion of the respective one of said armrest rods.

12. The foldable chair assembly of claim 1, further comprising a rod retainer mounted on one of said rear leg rods and formed with a retaining groove for engaging removably one of said armrest rods.

13. The foldable chair assembly of claim 12, wherein said rod retainer is disposed below said rear sleeve member on said one of said rear leg rods.

14. The foldable chair assembly of claim 1, wherein said rear leg rods are longer than said front leg rods.