To provide a method for easily performing removal of a metal core in a short time and a device therefor.SOLUTION: A metal core removal device is formed of: a pole screw 1 comprising a male screw on each of both ends of a columnar member, and comprising a recess to which a tip of a screw driver is fitted on one bottom surface； an annular pole screw holder 4 into which the pole screw can be inserted； a nut 6 provided on one end of the pole screw holder 4 and which can be screwed to the male screw； and a tripod shaped pole screw holder support member 5 attached to the other end of the pole screw holder 4. When the metal core is removed, a female screw is provided on the metal core, the male screw on one end of the pole screw 1 is screwed thereto, then the pole screw holder 4 and the pole screw holder support member 5 are attached, then, the nut 6 is screwed to the male screw on the other end of the pole screw 1 and the nut 6 is rotated.SELECTED DRAWING: Figure 1【課題】 メタルコアの除去を短時間で簡便に行うための方法と、それに用いられる装置を提供する。【解決手段】 円柱状部材の両端に雄ねじが設けられ、一方の底面にねじ回しの先端が嵌合する凹部が設けられなるポールねじと１、ポールねじを挿通することが可能な環状のポールねじホルダー４と、ポールねじホルダー４の一方の端に配され、前記雄ねじに螺合可能なナット６と、前記ポールねじホルダー４の他方の端に取り付けられてなる三脚形状のポールねじホルダー支持部材５とでメタルコア除去装置を構成する。メタルコアの除去の際は、メタルコアに雌ねじを設け、ポールねじ１の一方の端の雄ねじを螺合し、ポールねじホルダー４とポールねじホルダー支持部材５を取り付け、ポールねじ１の他方の端に設けられた雄ねじにナット６を螺合させ、ナット６を回転する。【選択図】図１
