DRILLING TOOL

To provide a drilling tool which can reduce labor and time required for a drilling work.SOLUTION: A drilling tool 1 comprises a cylindrical body part 10 of which a tip 11 is opened to the exterior, and a rotational operation part 20 for rotationally operates the body part 10 around a cylindrical sha...

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1. Verfasser: NOMOTO HIROMASA
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a drilling tool which can reduce labor and time required for a drilling work.SOLUTION: A drilling tool 1 comprises a cylindrical body part 10 of which a tip 11 is opened to the exterior, and a rotational operation part 20 for rotationally operates the body part 10 around a cylindrical shaft core X, and is so configured as to cut a part of a drilling object P at a marginal part 11a of the tip 11 of the body part 10 and to be capable of forming a hole H in the drilling object P in the state that the rotational operation part 20 is operated and the body part 10 is rotated. A part on a base end side of a peripheral wall part 13 of the body part 10 with respect to the tip 11 is provided with a discharge port 15 for discharging a part of the drilling object P, which is cut from the drilling object P and enters into the body part 10, to the outside of the main body 10.SELECTED DRAWING: Figure 1 【課題】孔開け作業に要する労力と時間を削減することができる孔開け具を提供する。【解決手段】先端部11が外部開放された円筒状の本体部10と、本体部10を筒軸芯X周りで回転操作するための回転操作部20とが備えられ、回転操作部20が操作されて本体部10が回転している状態で本体部10の先端部11の縁部11aにて孔開け対象Pの一部を切り抜いて孔開け対象Pに孔Hを形成可能に構成されている孔開け具1であって、本体部10の周壁部13における先端部11よりも基端側の部位には、孔開け対象Pから切り抜かれて本体部10の内部に入り込んだ孔開け対象Pの一部を本体部10の外部に放出するための放出口15が備えられている。【選択図】図1