JPH01164173U

JPH01164173U -

Info

Publication number: JPH01164173U
Application number: JP6087788U
Authority: JP
Priority date: 1988-05-09
Filing date: 1988-05-09
Publication date: 1989-11-16

Description

[Brief explanation of the drawing]

第１図はこの考案の密封容器の縦断面図、第２
図及び第３図は同上の平面図、第４図は同上の開
封状態を示す斜視図、第５図は開封時の剥離強度
を説明するための線図、第６図は熱封緘部の別の
例を示す一部拡大縦断面図、第７図は同上の平面
図である。１……密封容器、１０……容器本体、１１……
底壁、１２……周壁、１３……フランジ、２０…
…蓋、２１……基材、２２……ヒートシール層、
２４……熱封緘部、２５……膨出部、２６……外
周縁、２７……内周縁、Ｒ，Ｒ′……曲率半径、
Ｗ，Ｗ′……剥離巾。 Figure 1 is a vertical sectional view of the sealed container of this invention, Figure 2
Figure 3 is a plan view of the same as above, Figure 4 is a perspective view showing the same as the above in an unsealed state, Figure 5 is a line diagram for explaining the peel strength at the time of opening, and Figure 6 is a diagram showing the different parts of the heat-sealed part. FIG. 7 is a partially enlarged vertical cross-sectional view showing an example of the above, and FIG. 7 is a plan view of the same. 1... Sealed container, 10... Container body, 11...
Bottom wall, 12... Peripheral wall, 13... Flange, 20...
... Lid, 21 ... Base material, 22 ... Heat seal layer,
24...Heat-sealed portion, 25...Bulging portion, 26...Outer peripheral edge, 27...Inner peripheral edge, R, R'... Radius of curvature,
W, W'... Peeling width.

Claims

[Scope of Claim for Utility Model Registration] (1) In a sealed container in which a lid is heat-sealed to the opening of the container main body which is substantially oval or substantially circular, a heat-sealed portion having an approximately oval or substantially circular shape as a whole; A sealed container characterized by having a bulge having a smaller radius of curvature than the bulge, and a portion corresponding to the bulge serving as a peeling start portion of the lid. (2) The bulging portion is characterized in that the depth gradually increases in cross section from the outer circumferential edge to the inner circumferential edge, and the outer circumferential edge is a zigzag bent line, and the inner circumferential edge is a substantially smooth curve. A sealed container according to claim 1.