| 摘要 |
PROBLEM TO BE SOLVED: To provide an airless container capable of avoiding the occurrence of air-biting when discharging an inner fluid so that air does not enter, even when a pump device is removed in the middle of use, by reducing the volume of a headspace.SOLUTION: A hollow inside plug adapter 15 is fitted in a mouth neck part 13a of a container body 13, and a cap part 16 of a pump device 14 is installed by covering the mouth neck part 13a. The inside plug adapter 15 is composed of a cylindrical part 17 having an outer diameter in the same as an inner diameter of the mouth neck part 13a and being longer in the length than the mouth neck part 13a and a bottom part 19 for blocking up a lower end part of the cylindrical part 17 and having an on-off valve 18 capable of inserting a tube part 14a while still keeping a liquid-tight state. The inside plug adapter 15 is pushed in up to fitting a fitting part 17a, and is installed in the mouth neck part 13a in a state of arranging the bottom part 19 under the mouth neck part 13a. |
