< Topic > Be able to open this invention, simply, furthermore the opening surface is abbreviation even, it designates that the end for the closed housing which the damage piece is difficult to occur is offered as purpose.Solutions As for the above-mentioned topic, point (1) The point the connected section of truncated cone condition in order to connect (1) and the substance section (2) (3) It possesses the terminal area (4) The point (1), the terminal area (4), the connected section (3) and the substance section (2) the medial axis (5) that tries becomes the same axis The space which the terminal area (4) extends to the middle from the substance section (2) and continues (14,13,12) possessing As by the fact that the medial axis (5) adds power from cross direction, the terminal area (4) breaks in the point (1), the connected section of truncated cone condition (3) the head makes bare, the space of the connected section (13) makes the open edge, it is solved by the end and the like for the closed housing.< Selective figure > Figure 1【課題】 本発明は,簡易に開口でき,しかも開口面が略平坦であって,破損片が発生しにくい密封容器用端部を提供することを目的とする。【解決手段】 上記課題は,先端部(1)と;先端部(1)と本体部(2)とを連結するための円錐台状の連結部(3)と;接続部(4)とを具備し;先端部(1),接続部(4),連結部(3)及び本体部(2)は,中心軸(5)が同軸となるようにされ;本体部(2)から接続部(4)の途中まで伸びる連続した空間部(14,13,12)を有し;先端部(1)に中心軸(5)の横方向から力を加えることで,接続部(4)が破損し,円錐台状の連結部(3)の頭部がむき出しとされるとともに,連結部の空間部(13)が開放端とされる,密封容器用端部などにより解決される。【選択図】 図1
