Relates to multi-chamber container of two liquid mixing type which opens the discharge port in conjunction with the partition wall opening, [Problems] The present invention aims to ensure a more opening operation of the discharge port of the partition wall opening time. With a tab 28 as a closing part of the upper wall surface 12-2 extending portion to the drug inside the bag, the outlet 12 of resolution means synthetic resin molded article in the thin-walled portion 30 as a vulnerable part of the outer periphery tab 28 and is integrally molded with the remaining portion of the outlet 12. Spring 40 is disposed within the outlet port 12, the spring 40 is given an elastic force in the opening direction against the tab 28 is contracted upon closure of the outlet 12. Thin part 30 is broken by the expansion of the medical bag of the two-liquid mixing during the drug solution of the drug bag is introduced into the discharge port 12 by the tab 28 is opened. It is subsidized thin portion 30 is to destroy by the elastic force of the spring 40.【課題】本発明は隔壁開通と連動して排出口を開口させる二液混合式の複室容器に関し、隔壁開通時の排出口の開口動作をより確実化することを目的とする。【解決手段】合成樹脂成形品の排出口12は薬剤バッグ内部への延出部12-2の上壁面に開閉部としてのタブ28を備え、タブ28の外周は脆弱部としての薄肉部30に排出口12の残余の部位と一体成形されている。排出口12の内部にスプリング40が配置され、スプリング40は排出口12の閉鎖時は縮められタブ28に対して開放方向の弾性力を付与している。二液混合時の薬剤バッグの膨れで薄肉部30が破壊され、タブ28が開くことで薬剤バッグ内の薬液が排出口12に導入される。スプリング40の弾性力によって薄肉部30が破壊するように助成される。
