Patent ID: 10954113

Abstract:
A flexible container (80) includes a reservoir part (82) that reserves a liquid and a discharge passage part (81) that communicates with the reservoir part (82) to take out the liquid. A discharge pump includes a plurality of roller parts (50) that press the discharge passage part (81) and an endless transfer mechanism unit (60) that has the plurality of roller parts (50) attached at a predetermined interval and causes the roller parts (50) to go around. The endless transfer mechanism unit (60) has an arrangement including a straight-line portion in which the roller parts (50) linearly move, in a path of the go-around movement. An attachment interval of the plurality of roller parts (50) is set to such an interval that before a certain roller part (50) going around reaches a position where the certain roller part (50) does not press the discharge passage part (81), a subsequent roller part (50) is able to reach a position where the subsequent roller part (50) presses the discharge passage part (81). Each of the roller parts (50) linearly moves sequentially in a discharge direction of the liquid with respect to the discharge passage part (81) while pressing the discharge passage part (81).