Spring applied, electrically released brake with adjustable thrust element
US4031987A · kind A · utility
12Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 1975 |
| Grant date | Jun 28, 1977 |
| Priority date | — |
| Expiry date | Oct 24, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/22
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An industrial brake for application to an electrically-driven shaft in the event of power supply shut-down. The braking thrust is infinitely adjustable within a predetermined range by screw adjustment of the angle between a pair of levers pivoted to a brake control member at a single pivot. The remote ends of the levers are pivoted to respective arms carrying brake shoes for application to the shaft. A coiled spring tends to pull the brake "on" but an electrically-controlled thrustor normally overcomes the spring force except when its power supply is shut-down.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.