Patent ID: 7057325

Claim:
A commutator in the form of a planar commutator having a planar commutating surface comprising a plurality of commutator terminals each having a contact part and a separate terminal part, first and second supports of insulating material for supporting the contact parts and the terminal parts, respectively, wherein the first support is in the form of a commutator base of insulating material, the base having a rotational axis and front and rear surfaces extending, at least in part, transversely to the rotational axis, wherein the contact parts extend through respective apertures in the base and are bent over to lie against, or in close proximity to, the front surface of the base, and wherein rearwardly extending portions of the contact parts make a mechanical connection with respective terminal parts, and a plurality of carbon segments formed on the first support and over the contact parts, respectively, of the terminals, the terminal parts each comprising a first portion to which armature winding wire of a motor can be connected by a thermal connection process and a second portion for making a mechanical connection with a respective contact part.