Disposable chair
US4556253A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 27, 1983 |
| Grant date | Dec 3, 1985 |
| Priority date | — |
| Expiry date | May 27, 2003 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C5/005
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Lightweight chair from a single unitary die-cut and scored generally rectangular blank of sheet material which is collapsible for easy storing and carrying, and which pops open for easy set-up. The lower 10-20% of the blank has a plurality of flaps gulable to the inner face of adjoining sidewall panels to form a reinforced base perimeter. Half of the blank forms the chair base sidewalls, and the remaining upper half forms a pair of adjoining seat/back panels which are delineated from the sidewalls by a set of generally W-shaped score lines. An assembly tab at one end is fastened to the opposite side of the other end of the blank to form in cross-section an enclosed polygon, preferably a modified hexagon of unequal sides. A first of the pair of seat/back panel assemblies is folded down with one or more tabs or flaps frictionally engaging one or more of the sidewall panels. Then the second of the pair of seat/back panel assemblies is folded over the first, and an interlocking tab engages a slot in the first to complete the assembly. In use the seat is oriented with one of the polygon (hexagon) corners forward to provide leg room on either side. A generally triangular or trapezoidal b…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.