Patent ID: 7518281

Claim:
An electric motor comprising a holder ( 6 ) for at least two carbon brushes ( 5 ), which by means of a spring force ( 7 ) are pressed in a radial direction against a jacket face of a cylindrical collector ( 4 ) fixed to an armature shaft ( 2 ) of the motor, and a pivot bearing ( 3 ) that holds the armature shaft ( 2 ), characterized in that the holder ( 6 ) can be pulled off together with the carbon brushes ( 5 ) from the collector ( 4 ) in the axial direction of the armature shaft ( 2 ); and that covering means ( 11 , 12 ) for covering the pivot bearing ( 3 ) to protect it against entry of dirt are disposed on a side of the covering means ( 11 , 12 ) facing the holder ( 6 ) for the carbon brushes ( 5 ), provided with one or more chamfers ( 14 , 15 ) in such a way that the carbon brushes ( 5 ) slide over the covering means ( 11 , 12 ) as the holder ( 6 ) is being pulled off and that the carbon brushes ( 5 ) thereby are thrust radially outward counter to the spring force ( 7 ).