Automatic slack adjuster with ball detent clutch
US8453805B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 12, 2008 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Mar 29, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D65/561
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved self-adjusting automatic slack adjuster for reducing slack in the brake of a vehicle is provided, in which an easily accessible external operating feature actuates a ball detent clutch to permit the automatic slack adjuster's adjustment mechanism to be readily disengaged, so as to allow smooth release and retraction of the brake linings of a vehicle brake without damage to the adjustment mechanism's components. When the torque applied to the external feature exceeds a predetermined torque, the balls of the ball detent clutch move out of their retaining detents, thereby disengaging the slack adjuster's worm shaft from the adjustment mechanism and permitting brake shoe retraction without resistance from the adjustment mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.