Method for producing a flat commutator, and flat commutator

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.