Apparatus and method for sensing disc brake actuator position
US7175006B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2004 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | May 18, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2121/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
For an air-operated disc brake there is provided an internal brake actuator stroke indicator which provides an indication, readily ascertained from outside the brake caliper, of the amount of actuator stroke remaining in a disc brake apparatus before a remaining available actuator stroke limit is reached. In one embodiment, the stroke indicator is a mechanical device, readable through a sight glass in a caliper port, coupled to the brake actuator in a manner which results in rotary motion of the indicator when the brake actuator is displaced through its stroke. Alternatively, the indicator may be a rotary sensor such as an electrical potentiometer coupled to the actuator, where the potentiometer sends an electrical signal indicative of the actuator stroke to an external display, such as a remote actuator stroke display at a vehicle operator's position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.