Commutator arrangement for use in electrical machine to adjust e.g. seat, of motor vehicle, has sliding element with two portions, where one of portions at turned side is larger than other portion at turned away side

摘要

The arrangement (1) has a retainer (4) guiding a current-transmitting sliding element (3) at a commutator (2), where the sliding element comprises a coal or carbon brush. The element includes two sides (5, 6) and two portions (7, 9), where one of the sides is turned towards the commutator, and the other side is turned away from the commutator. One of the portions of the element in a tangential direction (8) to the commutator at the turned side is larger than the other portion of the element in the tangential direction to the commutator at the turned away side.