Equipment for carrying out operations in an elevator shaft
US6202800A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2000 |
| Grant date | Mar 20, 2001 |
| Priority date | — |
| Expiry date | May 4, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0246
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A maintenance trestle is stowed in folded-together form below the floor of an elevator car. The maintenance trestle is erected by tilting the floor up towards the car wall about a first fulcrum. The maintenance trestle includes a platform hinged to at least one fastening point on the bottom side of the tilted-up floor and at least one support hinged to the platform at a fulcrum opposite the fastening point and engaging the elevator car. The floor and the support position the platform in an extended position wherein a person standing on the platform can reach through a hatch in the car ceiling to work in the elevator shaft. A stay for stabilizing the maintenance trestle can extend between the fulcrum on the platform and another fulcrum on the car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.