Container with folded-back bottom wall

摘要

A container with a folded-back bottom wall, which is very stable in a rest position, has a strong bottom wall, and makes it possible to minimize the amount of remaining liquid while allowing costs to be reduced is provided. The container with a folded-back bottom wall has a bottom wall and a body part and transforms into a first mode in which the bottom wall is made to project downwards from the lower surface of the body part, and into a second mode in which the bottom wall is folded back inside the body part. The boundary portion between the bottom wall and the body part is folded to have an outwardly-convex shape so that a folding groove is circumferentially formed, and the bottom wall is folded back inside the body part at the folding groove.

主权项

1. A container with a folded-back bottom wall comprising:
a bottom wall; a body part, the container being configured to transform into a first mode in which the bottom wall projects downward from a lower surface of the body part and into a second mode in which the bottom wall is folded inside the body part; a boundary portion between the bottom wall and the body part, the boundary portion being folded to have an outwardly-convex shape so that a folding groove is circumferentially formed in the first mode and so that the bottom wall is folded back inside the body part at the folding groove to transform into the second mode; an opening neck part extending upward from an upper end of the body part; a liquid discharging pump mounted on the opening neck part; and a suction pipe extending down from the liquid discharging pump into the body part in a linear manner, the suction pipe, upon actuation of the liquid discharging pump, allowing liquid in the body part to be sucked up and discharged through the suction pipe, wherein the bottom wall has a truncated cone-shaped peripheral wall extending upward from a lower end of the body part into the interior of the body part, a top surface of the peripheral wall being inclined obliquely downward and forward, and the top surface being recessed to form a liquid retaining part; the body part comprises a V-groove extending along a circumference of a part of a lower portion of the body part, the V-groove being formed by reducing the diameter of the body part; an area of the body part located below a bottom part of the V-groove is brought into watertight contact with the truncated cone-shaped peripheral wall to form a cylindrical leg, a top surface of the cylindrical leg being formed into a tapered surface inclined obliquely downward and forward; and liquid does not enter the cylindrical leg.