| 摘要 |
PROBLEM TO BE SOLVED: To improve reliability of a liquid storage body, relative to that of a conventional one.SOLUTION: A liquid supply device comprises a liquid storage part for storing a liquid and a liquid derivation unit disposed on an end of the liquid storage part. The liquid storage part has a configuration in which, flexible film materials 84 are jointed into a bag-state. The liquid derivation unit is disposed on the end of the liquid storage part and comprises: a base part 115 jointed to the film materials 84 in a state of being sandwiched between the film materials 84 on a joint part of the film materials 84; and a protrusion part 151 disposed on an opposite side of the liquid storage part side of the base part 115, protruding from the base part 115 to a direction crossing to a direction where the base part 115 is sandwiched between the film materials 84. The protrusion part 151 is overlapped to at least a boundary 155 of the jointed film materials 84 and the base part 115, in view in a direction from the base part 115 to an inside of the liquid storage part.SELECTED DRAWING: Figure 16 |
