CUTTER

To provide a single edge type pipe cutter which reduces slide resistance in accordance with contact with a cross section of an object to be cut by its edge surface, reduces a force necessary for a cutting work, and prevents occurrence of breaks in the object to be cut.SOLUTION: A cutter 1 includes a first handle 4 having a receiving part 6, a moving edge 2 pivot-connected to the first handle 4, and a second handle 5 for opening/closing the moving edge 2, and fully opens the moving edge 2 by operating the second handle 5 in a direction separating from the first handle 4, closes the moving edge 2 by operating the second handle 5 in a direction approaching the first handle 4, and cuts a pipe 30 supported by the receiving part 6 by the closing moving edge 2, in which a through hole 2b for avoiding contact with a cross section of the pipe 30 of an edge surface 2a of the moving edge 2 is provided on a trajectory for passing the cross section. Due to existence of the through hole 2b, slide resistance between a part where the pipe 30 has been already cut and the moving blade 2 is reduced, a force necessary for the cut work is reduced, and occurrence of breaks and cracks can be blocked.SELECTED DRAWING: Figure 1 【課題】片刃式のパイプカッタにおいて、その刃面の切断対象物の断面が接触することに伴う摺動抵抗を減じ、切断作業に要する力を低減するとともに切断対象物に割れ等が生じることを防止する。【解決手段】受け部６を有する第１の把手４と、その第１の把手４にピボット結合させた動刃２と、その動刃２を開閉させる第２の把手５を備え、第２の把手５を第１の把手４から離反する方向に操作して動刃２を全開させ、第２の把手５を第１の把手４に接近する方向に操作して動刃２を閉じ、その閉じる動刃２によって受け部６で支えたパイプ３０を切断するカッタ１につき、動刃２の刃面２ａのパイプ３０の断面が通過する軌跡上に、その断面との接触を回避するための透孔２ｂを設ける。透孔２ｂの存在により、パイプ３０の既に切断が終わった箇所と動刃２との摺動抵抗が減じられ、切断作業に要する力を低減し、割れやヒビ等の発生を阻止することが可能となる。【選択図】図１