JPS6040409Y2 - liquid paper container - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a so-called gable-top carton, which is a house-shaped paper container generally used to store milk or the like.

In recent years, so-called gameful top cartons have become quite popular as packaging containers for milk, juices, etc., but there are still various problems that must be solved in order to use these cartons for other liquids such as concentrated juices. It contains prerequisite problems and cannot be used easily, but in particular, the following problems exist when using the carton for oil such as salad oil, and it is impossible to use it. This is the actual situation.

That is, since oils are highly flammable, it is absolutely necessary that the container will not be damaged even if it is subjected to impact such as dropping or colliding with the container.

However, in the conventional so-called gable top carton, 5
If the container is smaller than 00 cc, it will never be damaged by falling, but if the capacity is large, for example, 1000 cc, the container may be damaged in rare cases.

For this reason, the so-called gable top carton is 500cc.
Those with a capacity that exceeds the intended use, especially 1000, which is in relatively high demand.
It was considered impossible to use a cc type for oils.

The present invention eliminates the disadvantages of conventional so-called gable top cartons.

The creator of this invention has tested the so-called gable top cartons mentioned above for damage through repeated experiments, and has found that almost all carton damage occurs at the bonded part of the body, so much so that it can be said that 100% of the damage occurs in the gable top carton. I understand.

In other words, as long as you prevent the bonding on the body from peeling off, you can make a so-called gable top carton 100%.
It has been found that it is also possible to store and use oils as a container with a large capacity such as a 0cc container.

In addition, as a result of research based on the results of high-speed photography of the tearing pattern of the bonded parts when dropped, we found that the length of each horizontal crease increases as we move downward. It has been found that by carving the tape so that the length becomes shorter in sequence, it is possible to completely prevent the bonded portion of the body from peeling off when the product is dropped.

Based on this understanding, the inventor of the present invention devised a liquid paper container as shown in the perspective view of FIG.

The liquid paper container according to the present invention shown in FIG. 1 is a conventional gable-top carton having a synthetic resin layer on the inner surface that is oil-resistant and heat-sealable. Side plates 1, 2, which are made of blank plates in a developed view and form the body. 3.4 A plurality of horizontal folding lines 5 are carved in the lower part of the container so that the length of each horizontal folding line 5 becomes shorter as it goes downward across the vertical folding line a which should be the ridgeline of the container body. Features.

The assembly method is the same as a normal so-called gable top carton.

Since the present invention has the above-described configuration, when a shock is applied to the container body due to a drop or the like, the horizontal folding line 5
The body in the vicinity bends and becomes wavy, absorbing the impact energy caused by a fall, etc., and reducing the impact transmitted to the bonded part of the body, improving drop strength and preventing the bonded part of the body from peeling off. First, it has the remarkable effect of completely preventing damage to the container.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, with FIG. 1 being a perspective view and FIG. 2 being a developed view. Explanation of the symbols representing the main parts of the figure, 1, 2° 3.4.
...Side plate, 5...Horizontal crease.

Claims (1)

[Scope of utility model registration request] In a house-shaped liquid paper container consisting of a rectangular cylindrical body, a bottom connected to the lower end of the body, and a roof-shaped top connected to the upper end of the body, a ridge line is formed at the lower corner of the body. A paper container for liquid, characterized in that a plurality of horizontal folding lines are carved so that the length of each horizontal folding line becomes shorter as the line moves downward.