Electronic stroke sensor for air disc brake
US9855940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 28, 2014 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Aug 2, 2034 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2125/582
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle brake monitor assembly for an air disk brake includes a brake actuator having a pushrod projecting from inside a chamber of said brake actuator. The pushrod releasably actuates a lever arm of a caliper thereby moving the disk brake into a braking position when the pushrod is in an extended position and releasing the disk brake from the braking position when the pushrod is in a retracted position. The pushrod includes a pushrod shaft and a contact member biased in a telescoping relationship relative to the pushrod shaft and the lever arm of the caliper abuts the contact member counteracting the bias of the contact member. A sensor is integrated with the assembly proximate the contact member and detects movement of the pushrod relative to the lever arm and to the pushrod shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.