Mobile scaffold with fixed-use-position outriggers
US4194591A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 17, 1978 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Jul 17, 1998 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G2001/242
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pedestal scaffold having casters on the scaffold base to permit the scaffold to be rolled horizontally while the scaffold is in a generally vertical position. Retractable outriggers are extended outwardly and locked in position to provide a large support area for the scaffold, with the act of extension and locking of the outriggers causing the casters to lift off the ground so that the scaffold cannot be moved when in use. When the outriggers are not in use and the scaffold is movable on its casters, the casters support the scaffold with a substantial tilt from elevation so that it cannot be used. Additional wheel support frames are provided so that the scaffold can be tilted down for rolling transport, such wheel support frames also serving to protect the user in case the scaffold should tip over when it is generally vertical and supported on its base casters.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.