Rotary electric machine with coil member and method of manufacturing coil member

A rotary electric machine for rotating an armature based on a magnetic field, the rotary electric machine comprising:

• a yoke having a circumferential surface and first and second pole cores mounted on the circumferential surface, each of the first and second pole cores having an outer periphery, the outer periphery having at least one rounded corner;
• a field coil member working to produce a magnetic field when energized, the field coil member being composed of a rectangular wire strap, the rectangular wire strap having a pair of opposing major sides and a thickness therebetween substantially less than a width of the major sides, the rectangular wire strap being wound edgewise into the field coil member, the field coil member comprising:
• a first edgewise coil composed of a plurality of coaxially layered convolutions, the plurality of coaxially layered convolutions of the first edgewise coil being wound around the outer periphery of the first pole core, the first edgewise coil having one and the other coil ends, the one coil end of the first edgewise coil extending from a start point on the at least one rounded corner of the first pole core in a direction parallel to a tangential direction of the start point of the one rounded corner, the extending direction of the one coil end of the first edgewise coil being tilted from an axial direction of the yoke;
• and
• a second edgewise coil composed of a plurality of coaxially layered convolutions, the plurality of coaxially layered convolutions of the second edgewise coil being wound around the outer periphery of the second pole core, the second edgewise coil having one and the other coil ends, the one coil end of the second edgewise coil extending from a start point on the at least one rounded corner of the second pole core in a direction parallel to a tangential direction of the start point of the one rounded corner, the extending direction of the one coil end of the second edgewise coil being tilted from the axial direction of the yoke, the other coil end of the second edgewise coil being electrically connected to the other coil end of the first edgewise coil in series.