Elevator safety plank assembly
US6722475B2 · kind B2 · utility
7Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jul 12, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B11/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A safety plank assembly for mounting on a bottom of an elevator car in a traction-type elevator system includes a pair of parallel extending plank beams connected by a cross support member. A rope sheave is rotatably mounted at each of opposed ends of the plank beams to define a diagonal rope path through the assembly for underslung support of the elevator car. Traction weights and balancing weights can be attached to the beams and provision is made for mounting safety equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.