Vertically adjustable work station assembly
US5119907A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1991 |
| Grant date | Jun 9, 1992 |
| Priority date | — |
| Expiry date | Dec 19, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66F11/04
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vertically adjustable work station for use proximate a conveyor belt or the like. The work station includes a platform with side rail assemblies that is mounted for vertical displacement to ground engaging support posts. The posts are telescoped inside the rail assembly and a displacement assembly is provided to raise and lower the platform on the posts. In one embodiment, the posts are externally threaded and belt-driven gear nuts are mounted on the posts and carry the platform. In another embodiment, the posts and side rails are formed to provide a fluid piston-cylinder assembly. In a final embodiment, a pneumatic constant force spring biases the rail assembly and platform upwardly from the posts, and a brake assembly is used to hold the platform at the desired elevation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.