Brake device for a drive machine of an elevator
US6478124B2 · kind B2 · utility
4Cited by
6References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 7, 2001 |
| Grant date | Nov 12, 2002 |
| Priority date | — |
| Expiry date | May 7, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D5/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A brake device has magnets arranged on a frame that is fastened to a bearing pedestal of an elevator drive machine. The frame includes a pair of spaced stabilizers attached to a pair of magnet carriers on which the magnets are fastened. The magnets act on disk armatures arranged on brake arms pivoted on the pedestal. The magnetic forces act in opposition to the spring forces of compression springs and release the brake shoes from a brake drum, the forces which then occur being absorbed by the frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.