Braking device for elevator winding machine and elevator using the braking device
US5067593A · kind A · utility
11Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 1989 |
| Grant date | Nov 26, 1991 |
| Priority date | — |
| Expiry date | Nov 20, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/22
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A braking device for an elevator winding machine generates a braking force by contacting a rotary body driven by a rotary shaft of the winding machine with a brake section supported through the intermediary of an elastic body. The elastic body has a nonlinear elastic characteristic so that a starting shock to the passengers in the elevator car is prevented and the braking torque detecting accuracy is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.