Internal shoe drum brake adjusting device
US4431088A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1981 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Sep 9, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D65/546
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An internal shoe drum brake automatic adjuster comprising a strut extending between one brake shoe and a wedge, mounted between the strut and an abutment on a second brake shoe. The wedge is spring loaded to increase the spacing between the adjacent end of the strut and the abutment. The wedge has serrations thereon that engage with a pawl on the second brake shoe so that the wedge can only move to increase said spacing and not in the reverse direction. There is also provided a brake in which the strut is engageable with a mechanical lever pivoted to the one brake shoe. The brake is de-adjusted by moving the lever so that it no longer contacts the strut.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.