JPS5855005U - plastic containers - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

Figure 1 is a front view with the bottom of the plastic container cut away showing an embodiment of this invention, Figure 2 is a sectional view of the main part of the container showing the state immediately after filling, and Figure 3 is a reduced pressure. FIG. 3 is a sectional view showing an inverted state of the bottom surface in the state. 10... Plastics container, 21... Outer peripheral protrusion,
22... Annular thin-walled concave portion, 23... Central bulging surface, 2
5... Inverted surface.

Claims (1)

[Claims for Utility Model Registration] 1. The bottom surface of a plastics container is formed into a continuous curved surface by an outer circumferential protrusion, an annular thin-walled concave portion, and a central bulging surface, and the top of the central bulging surface is located at the outer periphery. The central bulging surface is located inward from the top of the protrusion, and is configured to be able to be reversed toward the inside of the container via the annular thin-walled recess, and in the inverted state, is inverted with respect to the outer circumferential protrusion. 1. A plastics container characterized by having a continuous curved surface. 2. Scope of utility model registration claims where the general part of the container has a wall thickness of 0.2 to 1.5 cm, and the wall thickness of the thin recessed part is relatively thinner than the crotch part <0.2 mm or less The plastic container according to item 1.