Automatic adjuster for a shoe drum brake
US4558766A · kind A · utility
4Cited by
5References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1984 |
| Grant date | Dec 17, 1985 |
| Priority date | — |
| Expiry date | Mar 30, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D65/566
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An adjuster for a shoe drum brake has a variable length strut for maintaining a predetermined maximum shoe to drum clearance. A thermally responsive shape memory effect material (SME material as defined in the specification) is arranged to move the brake shoes outwardly by extending the strut to compensate for drum expansion during excessive temperature conditions. Alternative arrangements are described using a body of (SME) material to disable the adjuster during excessive temperature conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.