Elevator car frame and platform assembly
US5564529A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1994 |
| Grant date | Oct 15, 1996 |
| Priority date | — |
| Expiry date | Nov 29, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/0206
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator car includes a car frame and a platform assembly having a composite platform and a support frame. The composite platform includes upper and lower metallic sheets with a oriented strand wood layer therebetween and bonded to the sheets. The support frame includes a perimeter structure and a pair of centrally located stringers. The composite platform is rigidly attached about its outer edges to the perimeter structure and extends unsupported between the centrally located stringers and the perimeter structure. In a particular embodiment, the elevator car includes a door frame extending from the car frame and platform assembly and which is isolated from the cab of the elevator car.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.