Automatic slack adjuster with adjusting clutch in control train
US10704630B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 14, 2018 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | May 14, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2057/127
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A vehicle brake slack adjuster includes a housing coupled to a brake actuator and supporting a driving worm wheel engaging the brake cam shaft and a driving worm screw meshed with the driving worm wheel and transferring a brake actuating force, imparted by the brake actuator to the housing, to the driving worm wheel and cam shaft. The adjuster further includes a wear adjustment mechanism including a reference arm fixed against movement and including a control ring gear, a pinion gear meshed with the control ring gear and configured for rotation about an axis, a clutch ring disposed about the axis and configured for rotation with the pinion gear, a control worm screw disposed about the axis, a wrap spring engaging surfaces of the clutch ring and control worm screw and a control worm wheel meshed with the control worm screw and configured for rotation with the driving worm screw.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.