| 主权项 |
1. A liquid storage body comprising:
a hollow plug member having a hollow portion at an inside thereof, the hollow portion being extended in an axial direction; and a bag connected to the hollow plug member at a first end portion of the bag and extending in an extending direction being a direction extending from the first end portion to a second end portion of the bag along the axial direction, the bag including a first flexible sheet and a second flexible sheet facing each other in a facing direction orthogonal to the extending direction and jointed to each other, the bag including: a side edge joint portion formed to join the first flexible sheet and the second flexible sheet on an end of the bag in a width direction orthogonal to both the facing direction and the extending direction; a rear joint portion extending in the width direction and formed to join the first flexible sheet and the second flexible sheet on the second end portion of the bag; a liquid storage portion formed between the rear joint portion and the first end portion of the bag in the extending direction, the liquid storage portion having an enclosed space in which liquid can be stored and connected to the hollow plug member at the first end portion; an extension portion partitioned from the liquid storage portion in the extending direction by the rear joint portion liquid-tightly sealing the liquid storage portion, the extension portion extending from the rear joint portion in the extending direction being opposite to a direction from the rear joint portion toward the liquid storage portion, the extension portion having a length in the extending direction longer than a length in the width direction of the side edge joint portion; and the extension portion being formed in a tapered shape having a width in the width direction becoming narrower as advancing toward the extending direction, the tapered shape having first outer edge linearly extending from one end of the bag in the width direction to a tip end, in the extending direction, of the extension portion and a second outer edge linearly extending from another end of the bag in the width direction to the tip end of the extension portion, the first outer edge and the second outer edge approaching each other as advancing toward the tip end of the extension portion. |
