Drum brake
US4573557A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 1985 |
| Grant date | Mar 4, 1986 |
| Priority date | — |
| Expiry date | Jul 18, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2051/003
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A drum brake assembly with a center guide backing plate, channeled web brake shoe assemblies slidably received on the center guide braking plate. A wheel cylinder assembly mounted in a notch on the center guide braking plate and engaged by a first set of adjacent brake shoe ends. A brake adjuster mounted between a second set of adjacent brake shoe ends, and retractor springs attached to the shoe assemblies and holding the shoe assemblies, wheel cylinder and brake adjuster in position on the center guide backing plate. The brake shoes are made of two identical shoe halves symmetrically formed about an axis so that the shoes also provide integral push rod-like which cylinder and adjuster engaging end.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.