INSIDE PLUG AND LIQUID STORAGE CONTAINER EQUIPPED WITH THE INSIDE PLUG, AND TIP STRUCTURE OF NOZZLE AND LIQUID STORAGE CONTAINER EQUIPPED WITH THE STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide an inside plug which has good liquid drainage and can effectively prevent remaining of liquid, and to provide a tip structure of a nozzle and a liquid storage container.SOLUTION: A tip of a nozzle part 11 is provided with an expanded diameter part 15 whose outer diameter is expanded in a radially outward direction with respect to an axis X of the nozzle part 11. The expanded diameter part 15 has a tip outside area 16 from the most tip end position 161 to the maximum outer diameter position 162, and a constricted area 17 connected from the maximum outer diameter position 162 to the base end side of the nozzle part 11 in the side cross section view of the nozzle part 11. The maximum outer diameter dimension A of the expanded diameter part 15 is set in a range from 2.5 mm to 4 mm, and in the tip outside area 16, the width dimension in a direction perpendicular to the axis X and the height dimension parallel to the axis X are set to 0.3 mm or more and 0.3 times or less the maximum outer diameter dimension A.