MANUFACTURE OF ARMATURE COIL OF DC MOTOR

PURPOSE:To realize a simple and easy process for manufacture of an armature coil having a double-layer structure by a method wherein the axial direction intermediate parts of respective conductor coil wires are the axial direction intermediate parts of inner and outer coil and both the axial direction end parts of the respective conductor coil wires are in parallel with the axial direction. CONSTITUTION:The method of manufacture of an armature coil 14 of the present embodiment is such that the axial direction intermediate parts of respective conductor coil wires 26 and 36 to which ferromagnetic elements 28 and 38 are fixed are the axial direction intermediate parts of an inner coil 20 and an outer coil 30. Further, both the axial direction end parts, i.e., the parts near the inner sides of slit plates 22 and 32 are in parallel with the axial direction. Therefore, in order to insert the coil conductors into the slits 24 or the slits 34 of a pair of slit plates 22 or a pair of slit plates 32, the respective conductor soil wires 26 and 36 can be inserted into the slits of the respective slit plates 22 and 32 which are provided on both axial direction end parts from the same direction simultaneously.