Self energizing disc brakes
US4787482A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 7, 1984 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Jun 7, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/10
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A self-energizing disc brake of the spreading type is disclosed. In the disc brake rotatable friction discs provided on opposite sides with linings are adapted to be brought into engagement with radial braking surfaces in a housing by an actuator assembly. The actuator assembly comprises pressure plates located between the discs and centered by pilot lugs, and balls located in oppositely inclined recesses in the adjacent faces of the pressure plates. At least the linings which engage with the pressure plates are separated into annular rings by an annular groove, and the groove is substantially coincident with a pitch circle of constant diameter upon which the recesses lie in an angularly spaced relationship. The groove increases the degree of cooling in the regions of the base of the recesses, thereby reducing the likelihood of hot spotting occurring in such regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.