Coil apparatus and manufacturing method for the same

摘要

A core-coupling unit (5) includes a top cover (20) and a bottom cover (21) each having a U-shape. The core-coupling unit (5) clamps a pair of core members (4) in a coupled state with the top cover (20) and the bottom cover (21) being coupled with each other. The top cover (20) is provided with apertures (24) formed in respective legs (23) of the top cover (20), and the bottom cover (21) is provided with projections (25) formed on respective legs of the bottom cover (21), the projections (25) mating with the apertures (24) so as to prevent removal. Play-gaps (5) are provided between each projection (25) and respective front and rear edges of the aperture (24). Lips are provided on the covers (20, 21) for maintaining the positions of the core members (4) in the backward and forward directions. The top and bottom covers (20, 21) covers are moved backward and forward relative to each other while the core members (4) are clamped, whereby the core members (4) are moved together with the respective top and bottom covers (20, 21), thereby performing core-rubbing.