Safety gear
US6109398A · kind A · utility
14Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1997 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Nov 7, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A safety gear (1) comprising a frame provided with a braking surface, which, when the safety gear is braking, is pressed against a first guide surface of a guide rail. Mounted in the frame is a roller (3), which moves along a track in the safety gear. The track comprises at least a first gradient and a second gradient, the first gradient having a larger pitch angle than the second gradient. The roller is pressed against a second guide surface of the guide rail when the safety gear is braking. The roller (3) has a stronger grip on the track on the first gradient than on the second gradient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.