JPH0225411U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is an explanatory longitudinal cross-sectional view showing an easy-open sealed container according to an embodiment of the first invention, and FIG. 2 is an explanatory vertical cross-sectional view showing the easy-open sealed container shown in FIG. 1 in a state immediately before opening. Figure 3 is a vertical cross-sectional explanatory view showing the state in which internal pressure is applied to the easily openable sealed container shown in Figure 1, and Figure 4 is an explanatory longitudinal cross-sectional view showing the state in which internal pressure is applied to the easily opened sealed container shown in Figure 1. FIG. 5 is an explanatory diagram of the main parts showing the state, FIG. 5 is a diagram showing the manufacturing method of the container body, FIG. Fig. 5c is a vertical cross-sectional view showing the state in which the mold has been removed, Fig. 5c is a longitudinal cross-sectional view showing the state in which the folded portion is glued, Fig. 5d is a longitudinal cross-sectional view showing the container body, and Fig. 6 is the second Fig. 6a shows the state before opening, Fig. 6b shows the state of opening A, and Fig. 6c shows the opening process of the easy-to-open sealed container according to an embodiment of the invention.
is an explanatory longitudinal cross-sectional end view showing the state of opening B, FIG. 6d is a longitudinal cross-sectional end view showing the state immediately before opening C, and FIG.
FIG. 8 is a plan view of the easily openable sealed container of the second invention shown in FIG. 8, and FIG.
Fig. 9 is a longitudinal cross-sectional view showing another example of the easy-to-open sealed container of the second invention, and Fig. 10 compares the opening force of the easy-to-open sealed container of the second invention with that of a conventional product. It is a graph. 1...Easy-to-open sealed container, 2...Container body, 3
... Lid, 4 ... Flange, 5 ... Folding part, 5a
... lower wall, 5b ... outer edge, 5c ... upper surface, 5d
...Upper wall, 5e...Face, 5f...Inner edge, 5g...
... Top surface, 5h ... Surface, 6 ... Surface layer, 7 ... Body, 8 ... Shaft, 10 ... Container wall, 11 ... Mold, 1
1a... Split mold, 12... Hot plate, 13... Direction of tensile force, 21... Easy-open sealed container, 22... Container body, 23... Lid, 23a... Inner surface material, 24...
Flange, 25...Seal area, 26...Tab, 2
7... Both sides.

Claims (1)

[Claims for Utility Model Registration] (1) A container body having a flange at the upper end and a lid that is adhered to the surface of the flange to seal the container body, the flange having a folded portion in at least a portion thereof; The folding portion includes a lower wall connected to the upper end of the body of the container body and extending outward from the upper end of the body, and folded back from the outer edge of the lower wall to overlap the upper surface of the lower wall and have an overlapping surface. An easily openable sealed container comprising an upper wall bonded to the lower wall, the adhesive force between the lower wall and the upper wall being smaller than the adhesive force between the lid and the flange surface. (2) a container body having a flange at an upper end; and a lid removably adhered to the container body in a sealing area on the flange to seal the container body, the lid having a tab adhered thereto; The tab has one end located outside the sealing area and the other end located inside the sealing area, and is bonded across the sealing area with an adhesive force greater than the adhesive force in the sealing area, and is resistant to peeling. An easily openable sealed container characterized by having rigidity against required force.