Coil forming apparatus and coil forming method

A coil forming apparatus that forms a belt-shaped coil in a wound state, the belt-shaped coil including a plurality of straight portions and side ends provided on both ends of the plurality of straight portions, the coil forming apparatus comprising:

• a coil winding jig that winds the belt-shaped coil, the coil winding jig including a plurality of comb-shaped grooves on an outer periphery thereof, each of which can hold a respective one of the plurality of straight portions therein;
• a coil conveying organizer that pivotally conveys the belt-shaped coil in a U-shape along at least a portion of the outer periphery of the coil winding jig;
• and
• guide members that are provided in a vicinity of both ends of the coil winding jig in an axial direction, and guide the belt-shaped coil in an arc shape while being in contact with the side ends,
• wherein the guide members guide the belt-shaped coil so as to be in the arc shape having a diameter smaller than an outer diameter of the coil winding jig in a second half portion of the belt-shaped coil upon pivot conveying, and allow the plurality of straight portions to be inserted into a respective one of the plurality of comb-shaped grooves of the coil winding jig.