PURPOSE: To prevent any random coiling by winding the first line of coil wire rods in an almost hexagonal section so as to cause the one set parallel plane to become a right angle to the winding direction, and coiling these coil wire rods different in a cross sectional area each in succession, in a starter or the like.

CONSTITUTION: In the first line of coil wire rods 2, a winding start 2a in a first winding layer is wound on a groove part 1a of a spool 1, and a set of parallel planes in an almost hexagonal section are aligned so as to become a right angle to the winding direction, and it is wound until reaching to a sixth wind 2f of a fourth winding layer, whereby a winding end 2b is derived from the spool 1. This wound wire rod 2b is changed in form to a lateral hexagonal form different in a cross section from a longitudinal hexagonal form, coming to a winding start 3a of the second line of a coil wire rod 3, and it is wound on the first line of the coil wire rod 2 into four layers in order. Thus, any random coiling state is prevented from occurring, and size of an external wind form and coil resistance value can be kept constant.