Method and apparatus for unloading a piece of equipment placed on a carrying vehicle
US4548541A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 29, 1983 |
| Grant date | Oct 22, 1985 |
| Priority date | — |
| Expiry date | Jul 29, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60P1/6463
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for loading of a piece of equipment on a lorry. The apparatus includes an arm pivotally interconnected with the lorry and a first jack interposed the lorry and the arm. A jib is telescopically interconnected with the arm. A movable platform is interconnected with a hook on the jib. A cable passes over a pulley interconnected with the movable platform and is hooked to the chassis at one of its ends and to the piece of equipment at the other of its ends. The method includes the steps of moving the piece of equipment rearwardly along the movable platform, the movement of the piece of equipment therealong acting through the cable and pulley to displace the movable platform rearwardly relative to the lorry until the movable platform and the piece of equipment are displaced to a position wherein they are unbalanced on the lorry. Gravity is then used to permit the lowering, by a tilting action, of the movable platform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.