PROBLEM TO BE SOLVED: To suppress generation of fusion flash of ejection member through a simple structure, and to satisfactorily maintain a melt-sticking state between a resin sheet and the ejection member.SOLUTION: A reservoir bag 10 includes: a reservoir body 40 for storing a reserve and a drain terminal 50 which is melt-stuck to a seal part 44. The drain terminal 50 is equipped with a nearly boat-shaped installation part 54 which is long along the extending direction of the seal part 44 to be melt-stuck and which has a prescribed thickness in the direction orthogonal to the extending direction. In the outer part 70a of the installation part 54, there are installed a melt-sticking part 82 to which a resin sheet 42 is melt-stuck and a non-melt-sticking part 84 to which no resin sheet 42 is melt-stuck in the corner 80a on a storage chamber 41 side among the ends 80 projecting at least along the extending direction.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2016,JPO&INPIT【課題】簡単な構成により吐出部材の溶融バリの発生を抑制して、樹脂シートと吐出部材の溶着状態を良好に保つ。【解決手段】貯留用バッグ10は、貯留物を収容する貯留本体部40と、シール部44に溶着される流出用端子50と、を含む。流出用端子50は、溶着されるシール部44の延在方向に沿って長く、且つ延在方向と直交する方向に所定の厚みを有する略舟型状の取付部54を備える。取付部54の外側部70aには、樹脂シート42が溶着される溶着部82と、少なくとも延在方向に沿って突出する端部80のうち収容室41側の角部80aに樹脂シート42が溶着されない非溶着部84と、が設けられる。【選択図】図2
