PROBLEM TO BE SOLVED: To provide a door or opening for a pet, the door or opening having an opening shape of a pet or character, a minimum size, and a simple structure.SOLUTION: On a base panel "a" is provided an opening "b" having a shape of a pet or character. Into the opening's inner side surface of part corresponding to an ear is inserted a door rotation shaft "d." The rotation shaft pin "d" protruding from the base panel is inserted so as to fit a rotation shaft groove on a door "c" having the same shape as the opening "b" on the base panel before fixing a detachable lid "e" using a bolt and nut "f" or the like. The base panel "a" is made so that its thickness and the size of an opening "b" are varied according to its installation condition, being enabled to fit various installation conditions for a door, sliding door, wall, etc.SELECTED DRAWING: Figure 1【課題】開口形状が、ペットやキャラクター形状で最小限の大きさで、単純な構造のペット用の開口及び扉の提供。【解決手段】ベースパネル「ａ」にペットやキャラクター形状の開口「ｂ」を設け、耳相当の部分の開口内部側面に扉回転軸「ｄ」を差し込む。ベースパネルの開口「b」と同形状の扉「ｃ」の回転軸用の溝に合わせてペースパネルから出ている回転軸ピン「ｄ」を入れ、着脱式蓋「ｅ」をボルトナット等「ｆ」で固定する。ベースパネル「ａ」は、設置する条件に合わせて厚みと開口「ｂ」の大きさを変えて作成することで、ドア、引き戸、壁など、さまざまな設置条件に対応する。【選択図】図１
