Adjustable knockdown tray assembly
US4579233A · kind A · utility
Inventor
Key dates
| Filing date | Aug 9, 1984 |
| Grant date | Apr 1, 1986 |
| Priority date | — |
| Expiry date | Aug 9, 2004 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47B47/06
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A knockdown tray assembly comprising a plurality of horizontal rectangular trays made of paperboard or cardboard from a one-piece blank and supporting members formed by interfitting a T-beam bracing member over a comparable T-beam by the interfitting of a pin on the top of the beam with a socket at the bottom beam at the center, these beams serving as a cross brace below the tray and each of the beams having a double socket at the end with a supporting web, these double sockets adapted to receive tubular members which are supported on the webs. The sockets each have a flange and each of the trays has a hole cut out at the corners for the insertion of the socket. Tubular posts fit in each socket above and below the trays to form the assembled rack useful for storage or display. The trays are different from the ordinary cardboard trays in that they are free from metal fasteners and have cut-outs at the corners which adapt them to serve as the shelves to bear substantial loads in a shelf system in which there are no locking parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.