| 摘要 |
PURPOSE:To heighten efficiency of use of the space in a drying oven and to improve efficiency of work by pressure contacting a back bar to a head core and solidifying the pressure contacted part with resin. CONSTITUTION:A back bar 13 pressure which is brought into contact by a leaf spring 14 with rear end parts of a center core 11 and side cores 12a, 12b connects the two cores magnetically. The end of the leaf spring 14 is in contact with the inner peripheral face of a bobbin 15 surrounding the center core 11, side cores 12a, 12b and the back bar 13 and energizes the back bar 13 at specified pressure. Drying of resin 18 is made in a drying oven with the back bar energized by the leaf spring 14. However, as no jig is attached, the drying oven can contain many magnetic heads at a time, and the efficiency of work can be heightened.
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