Dynamo electric machine brush assembly.

摘要

A brush assembly comprising an electrically insulating plate 11 having therein an aperture 12 with which communicate first and second slots 13, 14. The slots each slidably receive a brush 16 and a compression spring 18 acts between the closed end of each of the slots and the respective brush to urge the brush slidably towards the aperture 12. The brushes and at least one wall of each of the slots are provided with mating surfaces 21,24 whereby the brush may be latched in a retracted position relative to its respective slot against the action of its respective compression spring.