Commutator motor

Claim 1

An axial gap type commutator motor provided with a disk-like armature having a multi-layered conductor of at least four layers, comprising an armature winding including conductors affixed to a plurality of disk-like armature elements, said plurality of armature elements being laminated and disposed in a successively staggered relationship with each other through an angle corresponding to one commutator segment, with an insulating film interposed therebetween; each of said armature elements, each one of which comprises one round of a wave winding and cannot become a completed armature winding by itself, including spiral coils consisting of a flat strip printed-circuit conductor, said coils being provided on the front and rear surfaces of a disk-like insulating film, the number of coils on each one surface of said insulating film being n, where n is the number of field poles on the motor; said spiral coils provided on the front and rear surface of said insulating film being connected with each other at their centers through small apertures formed in the insulating film; all said spiral coils being connected in series with each other; and each of said armature elements being provided on the inner peripheral edge thereof with inwardly projecting terminals adapted for connection with the commutator, said winding and said commutator being connected by welding, and the number of said terminals being n/2 + 1.