Combined parking and service brake
US6405837B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 10, 2000 |
| Grant date | Jun 18, 2002 |
| Priority date | — |
| Expiry date | Feb 10, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2123/00
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The present disclosure relates to a braking device having a service brake and a parking brake. The braking device includes a housing and a shaft that extends at least partially through the housing. The shaft is rotatable relative to the housing about a longitudinal axis. A stack of plates is spaced axially along the shaft. At least one of the plates is adapted to rotate in concert with the shaft. The stack of plates includes a first axial end positioned opposite from a second axial end. A spring structure is provided for compressing the stack of plates together to provide the parking brake. The spring structure is mounted at the first axial end of the stack of plates. The braking device also includes a first piston for releasing the parking brake, and a second piston for actuating the service brake. The second piston actuates the service brake. The second piston is mounted at the second axial end of the stack of plates. When actuated, the second piston forces the plates axially toward the spring assembly such that the plates are compressed together to provide the service brake.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.