Double-sided safety gear
US5370208A · kind A · utility
15Cited by
2References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1994 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Apr 28, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A safety gear e.g. for an elevator car or counterweight, comprises at least one wedge chamber (8) and at least one working wedge (9) acting on an elevator guide rail (30) and activated by a transmission element. For each working wedge (9), the safety gear has at least one counter wedge (10) moving along guide surfaces (14 and 39) provided in the wedge chamber (8). The counter wedge (10) of a working wedge (9) is on the same side of the guide rail as the working wedge (9) in question.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.