Braking device with mechanical actuation
US4582177A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 1984 |
| Grant date | Apr 15, 1986 |
| Priority date | — |
| Expiry date | May 18, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/20558
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Braking device comprising a brake motor provided with a mechanically actuated device of the rotary type (a mechanism of the screw-and-nut type with reversible pitch) and a control jack of the "spring cylinder" type connected by a power transmission mechanism to this actuation device. According to the invention, the power transmission mechanism comprises a cam (50) keyed on the spindle of the actuation mechanism of the brake motor (10), and a cable (52) attached at one of its ends to the rod (38) of the control jack (30) and at its other end held wound round the cam, the profile of the latter being determined so as to compensate the weakening of the drive force generated by the spring of the jack during its relaxation. The invention is used especially in brake systems for heavy vehicles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.