Brush holder with improved spring clip arrangement
US5256925A · kind A · utility
Inventor
Key dates
| Filing date | Mar 24, 1992 |
| Grant date | Oct 26, 1993 |
| Priority date | — |
| Expiry date | Mar 24, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01R39/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A brush holder for an electrical brush includes a brush holder body and an improved spring clip arrangement. Included in the brush holder body is a spring clip pocket and a brush pocket. The brush pocket slidably guides an electrical brush therein and a spring clip assembly, including a generally V-shaped spring clip with a shoulder stop, is sized to be received in the spring clip pocket. The shoulder stop on the spring clip engages a stop in the brush holder body when the spring clip is seated in the spring clip pocket. The spring clip assembly includes a constant force spring for applying a constant force to an electrical brush in the brush pocket when the spring clip is in the seated position. A latch pin engages a latch aperture in one leg of the spring clip, when the spring clip is seated, and a cross pin removable from the top of the brush holder body, controls separation of the spring clip from the brush holder body when the spring clip is retracted from the spring clip pocket. The cross pin is also positioned to permit the spring clip to be pivoted out of the way when retracted so that a new brush can be installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.