Electro-mechanical brake unit, preferably for a rail vehicle
US4953669A · kind A · utility
16Cited by
8References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1989 |
| Grant date | Sep 4, 1990 |
| Priority date | — |
| Expiry date | Mar 20, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/48
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electro-mechanical brake unit includes a drive sleeve (8), which may be subjected to a torque, for example from a coil spring (6), and a ball screw (15, 25) for transforming the torque into an axial force for brake application. Between the drive sleeve and the ball screw there is a control arrangement, comprising an outer locking spring (16), a control sleeve (17), and an inner locking spring (18), a control motor (20) being connected to the control sleeve for rotation thereof in either direction. The control sleeve is connected to the locking springs for control of their locking and unlocking functions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.