Patent ID: 8887378

Claim:
A method for producing a flat commutator for a dynamoelectric machine, which commutator comprises an insulating support body ( 1 ), a plurality of carbon segments ( 2 ) and a plurality of conductor segments ( 5 ) connected electrically conductively therewith, wherein the carbon segments define a substantially plane brush running surface ( 4 ) and the conductor segments each have a rotor-winding terminal ( 6 ), the method comprising: preparation of an annular carbon disk ( 14 ); molding of the support body ( 1 ) onto the annular carbon disk by injection-molding plastic material thereon in such a way that the support body bears interlockingly and frictionally thereon in radially outward position and radially inward position as well as on the end face ( 13 ) of the annular carbon disk opposite the brush running surface; creation, in the support body, of openings ( 23 ) that extend from a surface ( 24 ) of the support body opposite the brush running surface to a surface ( 19 ) of the carbon segments ( 2 ) or of the annular carbon disk ( 14 ) opposite the brush running surface; mounting of the conductor segments ( 5 ) on the support body in such a way that a contact pin ( 26 ) of the conductor segments passes respectively through one of the openings and at its free end contacts the surface ( 19 ) of the annular carbon disk ( 14 ) opposite the brush running surface; and separation of the annular carbon disk ( 14 ) into carbon segments ( 2 ) insulated from one another.