Electric actuator for S-cam brake
US10001186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 26, 2016 |
| Grant date | Jun 19, 2018 |
| Priority date | — |
| Expiry date | Sep 14, 2036 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/52
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drum brake assembly includes a brake spider having a central aperture configured to receive an axle extending therethrough and first and second brake shoes. Each of the first and second brakes shoes has a first end pivotally coupled to the brake spider. First and second cam followers are disposed at corresponding second ends of the first and second brake shoes. A camshaft has a shaft extending through a camshaft aperture in the brake spider and disposed along a rotational axis and a cam disposed at a first end of the shaft and in engagement with the first and second cam followers. An electric motor has an output shaft coupled to the camshaft. A controller is configured to drive the electric motor to cause rotation of the camshaft and move the first and second brake shoes between positions of engagement and disengagement with an associated braking surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.