JPH0419091B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION This invention relates to a hermetically sealed container in which a beverage such as juice can be contained.

Prior Art and Its Problems Cans and paper containers are known as containers used for the above-mentioned purposes. Since cans cannot be incinerated, they are difficult to dispose of after use, resulting in so-called can pollution. In addition, cans are sterilized by retort after the contents are sealed.
There is a problem that the flavor of the contents is impaired. Although these problems can be solved by paper containers, paper containers have the following problems. When a drinking spout is formed by breaking a part of the top wall of a container, the broken surface is exposed at the periphery of the drinking spout, but compared to that of a can, the broken surface is
Because it is not smooth, the drinking experience is impaired when trying to drink the contents through the spout.

An object of the present invention is to provide a sealed beverage container that solves the problems of conventional cans and paper containers.

Means for Solving the Problems The sealed beverage container according to the present invention has an upper end of a rectangular parallelepiped container body, which is composed of an outer thermoplastic synthetic resin layer, a paper layer, an aluminum foil layer, and an inner thermoplastic synthetic resin layer in order from the outside. A cap-shaped reinforcing cover made of thermoplastic synthetic resin is placed over the top wall of the container body, and part of the outer thermoplastic synthetic resin layer and paper layer on the top wall of the container body is removed, and the remaining portion is used as a thin wall for forming the drinking spout. A downwardly protruding connecting portion is formed on the lower surface of the top wall of the reinforcing cover in correspondence with the thin-walled portion for forming the spout, and the lower surface of the connecting portion is fused to the upper surface of the thin-walled portion for forming the spout. An annular thin-walled portion for forming a drinking spout is formed at the boundary of the other portions, a knob is provided inside the annular thin-walled portion, and the peripheral wall of the reinforcing cover is fused to the body wall of the container body.

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

The sealed beverage container consists of a rectangular parallelepiped container body 11 that is longer in the left and right directions than the front and rear in plan view, and upper and lower cap-shaped reinforcing covers 12 and 13 that cover the upper and lower ends of the container body, respectively.

The container body 11 is of a well-known form except for two features described below, and the description thereof will be kept brief. and two upper ears 17 that are connected to two ridges in the front and back direction formed by the body wall 15 and overlapped on the body wall 15 and fused thereto, and the front and rear edges formed by the body wall 15 and the bottom wall 16. It consists of two lower ears 18 which are respectively connected to two edges in the direction and overlapped on the bottom wall 16 and fused thereto. In addition, the container body 11, the sixth
As shown in the figure, it is comprised of an outer thermoplastic synthetic resin layer 21, a paper layer 22, an aluminum foil layer 23, and an inner thermoplastic synthetic resin layer 24 in order from the outside.

Next, two feature points will be explained. The first feature is that the shape of the upper ear 17 is different from the conventional one. As shown in FIG. 5, the upper ear 17 consists of a front side component 31 that is connected to both left and right edges of the top wall 14, and a back side component 32 that is connected to the upper edge of the trunk wall 15. ，
As shown by the chain lines in the figure, the numerals 32 were initially triangular and simply overlapped with each other, but they were fused together and the tips were removed to form a trapezoidal shape.

A second feature is that the top wall 14 of the container body 11 is provided with a thin-walled portion 33 for forming a drinking spout. As shown in FIG. 6, a portion of the outer thermoplastic synthetic resin layer 21 and the paper layer 22 of the top wall 14 are removed, and the remaining portion forms a thin wall portion 33 for forming a drinking spout.
This becomes the top wall 33 when viewed from the top, and this forms an outwardly expanding ellipse extending from approximately the center of the top wall 14 toward one corner when viewed from the top.

The upper reinforcing cover 12 is made of thermoplastic synthetic resin and is generally cap-shaped, and includes a peripheral wall 41 and a top wall 42 . An inward protrusion 43 is provided at the lower end of the peripheral wall 41 and is fused to the trunk wall 15 of the container body 11. Top wall 42
An annular embankment portion 44 is provided on the periphery of the upper surface.
The top wall 41 is provided with a connecting part 45 having a substantially same shape as the spout forming thin part 33 of the container body 11 and projecting downward by being made thicker than other parts. and its lower surface is fused to the upper surface of the thin wall portion 33. An annular thin-walled portion 46 for forming a drinking spout is formed at the boundary between the connecting portion 45 and other portions by forming a V-groove 47 on the lower surface of the top wall 42, and a circular knob 48 is integrally formed inside thereof. It is provided. The base of the knob 48 is adjacent to the central end of the annular thin wall portion 46 and extends on the upper surface of the top wall 42 inside thereof. A substantially square aluminum foil 49 is fused to the lower surface of the periphery of the annular thin wall portion 46 of the top wall 42, and the lower surface of the aluminum foil 49 is fused to the upper surface of the periphery of the thin wall portion 33 of the top wall 14 of the container body 11.

Note that the lower reinforcing cover 13 is different from the upper reinforcing cover 12.
Twisted connecting portion 45, annular thin wall portion 46 and knob 4
8 is removed, and its explanation will be omitted.

When opening the container, by pulling the knob 48 diagonally upward toward the outside of the container, the annular thin-walled portion 46 will break from the inner end to the outer end, and at the same time, the connecting portion will break. 45, the thin wall portion 33 of the container body 11 is pulled upward by the thin wall portion 3
A break also occurs at the periphery of the container 3, and the portion inside the annular thin wall portion 46 of the reinforcing cover 12 and the thin wall portion 33 of the container body 11 are removed, thereby forming a drinking spout there.

Even if the contents spill from the drinking spout during drinking, the spilled contents will not spill from the reinforcing cover 12 due to the presence of the embankment 44.

Effects of the Invention According to this invention, a spout can be easily formed by pulling the knob, and the fractured surface of the synthetic resin reinforcing cover is exposed at the periphery of the spout when viewed from the outside. As a result, the fractured surface of the paper-based laminate container body is difficult to see, and the fractured surface of the former is as smooth as that of a can, so the taste of the beverage is not impaired.

[Brief explanation of drawings]

The drawings show an embodiment of the container according to the present invention, in which Fig. 1 is a perspective view, Fig. 2 is an exploded perspective view, Fig. 3 is a plan view, Fig. 4 is a longitudinal sectional view, and Fig. 5 is an explanation of the molding process. 6 is a sectional view taken along the - line in FIG. 3. 11... Container body, 12, 13... Cover, 1
4... Top wall, 15... Trunk wall, 17... Ears, 21...
... Synthetic resin layer, 22 ... Paper layer, 23 ... Aluminum foil layer, 24 ... Synthetic resin layer, 33 ... Thin wall portion, 41 ... Peripheral wall, 44 ... Embankment, 45 ... Connection portion, 46 ... ...Annular thin wall portion, 48...knob.

Claims (1)

[Scope of Claims] 1. A rectangular parallelepiped container body 11 consisting of an outer thermoplastic synthetic resin layer 21, a paper layer 22, an aluminum foil layer 23, and an inner thermoplastic synthetic resin layer 24 in order from the outside.
A cap-shaped reinforcing cover 12 made of thermoplastic synthetic resin is placed on the upper end, and a portion of the outer thermoplastic synthetic resin layer 21 and paper layer 22 of the top wall 14 of the container body 11 is removed, and the remaining portion is removed. The portion is made into a thin-walled portion 33 for forming a drinking spout, and the reinforcing cover 1 corresponds to the thin-walled portion 33 for forming a drinking spout.
A downwardly protruding connecting portion 45 is formed on the lower surface of the top wall 42 of No. 2, the lower surface of which is fused to the upper surface of the thin-walled portion 33 for forming a drinking spout, and an annular connecting portion 45 for forming a drinking spout is formed at the boundary between the connecting portion 45 and other parts. A sealed beverage container in which a thin wall portion 46 is formed, a knob 48 is provided inside the thin wall portion 46, and a peripheral wall 41 of a reinforcing cover 12 is fused to a body wall 15 of a container body 11.