Electrically actuated electric brake with wear compensating adjuster
US5150773A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Mar 21, 2011 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16D2127/06
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An electrically actuated brake is provided with an adjustment mechanism to compenate for wear of the brake shoes. The brake in a preferred embodiment includes a motor driven actuator to apply the brake shoes and a first rotative member torsionally associated with a rotor of the motor. A spring returns the brake shoes from an actuated position to a release position causing the first rotative member to rotate in a releasing direction. A second rotative member having a first surface for making torsional transferring engagement with the first rotative member when the first rotative member is rotating in a friction member applying or releasing direction is provided. The second rotative member also has a second surface of a non-torsional transferring engagement. The second surface is exposed to the first rotative member when the first rotative member has rotated in an applying direction beyond a predetermined limit due to wear of the brake shoes. A stop is provided for limiting the retractive rotation of the second rotative member when the first surface of the second rotative member is in torsional engagement with the first rotative member. A compliant radial projection of the second rot…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.