Automatic adjuster for a shoe drum brake
US4476963A · kind A · utility
5Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1981 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | Nov 30, 2001 |
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 body of 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.