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US 6,607,240 B2Granted
Collapsible chair with solid arm rest and tensioned seat
OwnerEdward Zhenginventor
Life of this patent
Estimating the term…
Abstract
A collapsible chair front and rear leg, seat and back support rods, first and second pairs of cross braces, and solid arm rest, all of which are coupled such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods. The seat in preferred chairs is a tensioned seat and continuous with the backrest.
Claims18
A collapsible chair, comprising:
- a pair of front legs, a pair of rear legs, a pair of back support rods, a pair of seat support rods, and a distinct solid arm rest;
- a first pair of cross braces that couple the pair of front legs to the pair of seat support rods, and a second pair of cross braces that couple the pair of rear legs to the pair of back support rods;
- wherein the armrest is (a) at a first position rotatably coupled to at least one of the front legs and (b) at a second position rotatably attached to one of the back support rods;
- wherein at least one of the rear legs is rotatably coupled to at least one of the seat support rods;
- and
- wherein at least one of the seat support rods is rotatably coupled to at least one of the back support rods and at least one of the front legs in a manner such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods.
3 more elements
A method of imparting collapsibility into a chair, comprising:
- providing a pair of front legs, a pair of rear legs, a pair of back support rods, a pair of seat support rods, and a distinct solid arm rest;
- coupling the pair of front legs with the pair of seat support rods via a first cross brace, and coupling the pair of rear legs to the pair of back support rods via a second cross brace;
- rotatably coupling the armrest at a first position to at least one of the front legs, and rotatably attaching the armrest at a second position to one of the back support rods;
- rotatably coupling at least one of the rear legs to at least one of the seat support rods;
- and
- rotatably coupling at least one of the seat support rods to at least one of the back support rods and at least one of the front legs in a manner such that the chair collapses in a single movement in which the front legs approximate each other when the seat support rods pivots towards the back support rods.
3 more elements
Dependencies are inferred from the claim text.