Dolly for maneuvering modules of a modular wall system
US4023686A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1974 |
| Grant date | May 17, 1977 |
| Priority date | — |
| Expiry date | Apr 30, 1994 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04G21/26
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dolly for maneuvering, lifting and transporting removable wall modules in the erection and disassembly of a modular wall system comprises an upwardly extending A-frame pivotally secured to a triangularly shaped wheeled base frame and having a vertically extendable grip arm with a lip at its end engageable in a groove in the module ceiling channel for moving the latter into and out of operative position against the ceiling; the lower edge of the A-frame has a horizontal lift member engageable in a longitudinal groove of the modular floor channel for lifting and supporting the module in cooperation with the grip arm. The A-frame is pivotally supported on the base frame about two axes so that the module when gripped by the grip arm end plate and the lift member may be lifted off the floor and tilted rearwardly to make an acute angle with the base frame for convenience and stability in transporting the module.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.