Folding display frame for forming column-like structures
US5351843A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 1992 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Apr 27, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16M2200/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A collapsible portable framework is expanded to an open position forming a long, narrow, column-like structure for a folding display frame, in which generally rectangular frame-like cubicles are aligned serially and are pivotally joined at common ends of the cubicles. Each cubicle has hubs at its corners pivotally joined to ends of rigid rods interconnected at pivot points forming a pair of scissor members along opposite sides of each cubicle. End braces releasably interlock as a rigid box frame to support the ends of the scissor members and the hubs at the corners of the cubicles in rigid spaced-apart positions. A diagonal cross-brace extends from a lower front corner to an upper rear corner of each cubicle, and another diagonal cross-brace extends from an upper front corner to a rear lower corner of each cubicle. Disconnection of the end brace members permits the frame to be collapsed by folding the scissor members so the cubicles are collapsed into a compact side-by-side form. Preferred end support members comprise a pair of rigid U-frames affixed to corresponding hubs at the ends of the cubicle so that base portions of each U are movable adjacent to one another. A pin and socke…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.