COIL DEVICE

PROBLEM TO BE SOLVED: To prevent disconnection of a wire by mechanically absorbing tension acting on a copper wire between a bobbin contact point of the copper wire and a contact point of a winding part of a terminal, on which the end part of the copper wire is wound. SOLUTION: When both end parts 16A, 16B of a copper wire 16 wound on a bobbin 14 are fixed by winding them to terminals 13A, 13B planted on an insulating base 12, buffer materials 15, 15 composed of a thermoplastic resin which is softened at atmosphere temperature higher than that during dip processing are provided along the terminals 13A, 13B, on which the end parts 16A, 16B of the copper wire 16 are wound. In this state, the end parts 16A, 16B of the copper wire 16 are wound along envelope curves of the buffer materials 15 and the terminals 13A, 13B.