Methods for manufacturing a motor

A method for manufacturing a motor, the motor including a stator, a split core and a coil, wherein the split core defines a part of the stator that has substantially a cylindrical shape, the coil is wound into a ring-like form and tied in advance, and the tied coil is mounted to the split core, and wherein the split core includes a field core extending from an inner peripheral surface of the split core, a pair of pole pieces extending from both circumferential ends of the field core in a manner of intersecting with the field core, and two coil receiving parts defined by the field core, the pair pole pieces and the inner peripheral surface of the split core, each of the coil receiving parts having an opening on the tip end side of the associated pole piece, the coil being installed in the two coil receiving parts, the method comprising:

• preparing the split core such that the spacing between the pair pole pieces in the circumferential direction of the split core corresponds to the inner dimension of the coil in the circumferential direction of the split core, the split core having a bending part at a predetermined location in the circumferential direction of the split core,
• inserting the tied coil into the two coil receiving parts through the openings and
• deforming the split core such that the spacing between the pair pole pieces is increased to be longer than the inner dimension of the coil,
• wherein the deforming the split core includes bending the split core at the bending part with the coil being installed in the two coil receiving parts.