Drum brake and electric actuator therefor
US6684988B2 · kind B2 · utility
9Cited by
12References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 2002 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jun 19, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An actuator for a drum brake comprises a housing (1), a screw mechanism having at least one screw (3,6) and a nut (4, 7), which screw mechanism (2) is supported with respect to the housing (1), and drive means (3) which are drivingly connected to the screw mechanism for providing a linear movement of at least one of the screw and nut with respect to the housing upon driving the screw mechanism. The screw mechanism comprises two axially aligned screws which have opposite lead angles and two corresponding nuts, said screws each engaging a respective nut, the drive means being connected to both screws or to both nuts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.