Safety device for use in an elevator system including a triggering member for activating a safety brake
US7650969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2004 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | Feb 17, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/06
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elevator system includes a safety device strategically positioned within a hoistway to provide overhead or under car clearance during an inspection procedure, for example. An example safety device includes a triggering member that is selectively moved into a stopping position to engage a safety brake for preventing movement of an elevator car beyond a selected vertical position. The triggering member is selectively moveable in an automated manner between a retracted position and a stopping position. When the triggering member is in a retracted position, it has no effect on normal elevator system operation. When the triggering member is in the stopping position, it provides for maintaining adequate clearance between an elevator car assembly and another surface or structure within an elevator hoistway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.