| 摘要 |
PURPOSE:To improve an adhesive strength by approximating the external configuration of a spacer to a parallelogram and by providing a through hole in its center portion. CONSTITUTION:A spacer 5 has an external configuration similar to a parallelogram, and a circular through hole 6 is provided in its center portion. And then, an adhesive agent coated on magnetic feet of both sides of an E type core adheres also to an I type core from an end face of the spacer 5. An adhesive agent coated on a magnetic foot of a center of the E type core adheres also to the I type core through the through hole 6 of the spacer 5. Therefore, an direct adhesive binding can be made in a but composition plane of the E type core and the I type core, and an adhesive strength is improved. |
