Traction machine of elevator
US4172509A · kind A · utility
3Cited by
5References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 1977 |
| Grant date | Oct 30, 1979 |
| Priority date | — |
| Expiry date | Dec 6, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/08
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A traction machine of a traction type elevator with a detector operable at occurence of abnormal car traveling. The traction machine includes a painting system to operate at the necessary time to paint the traction surface of a traction sheave of the elevator and at least one of main ropes near the traction sheave with a friction increasing material. It may include a foreign material remover to operate at the necessary time to rub the traction surface of the traction sheave. The painting system and the foreign material remover are driven through the operation of the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.