JP2007062789A - Container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve a container capable of storing various content such as food and drink. <P>SOLUTION: The container comprises a sheath sleeve having an outward curled part on the upper end of a cylindrically formed body part and an inward folded-back lower end, and an inner container made of a plastic having a flange part outward fitting on the curled part on its upper end and fitted in the hollow of the sheath sleeve. The sheath sleeve can be formed by using an existing forming machine for a paper cup, and as the sheath sleeve appears on the surface, it can be used for heat insulating effect and when it is used in a microwave oven. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement of a container that can store various contents such as food and drink.

Conventionally, a container in which a compressed air molded product of a resin sheet is used as an inner container and combined with an outer rectangular paper container or a round cup container has been used as, for example, a food lunch container.
However, in the above configuration, there are many square and round containers, and there are no other shaped containers.
In order to increase the rigidity of the container itself, (1) the thickness of the resin inner container is increased, and the outer container is made of only the shrink film or only the outer sleeve of the paperboard. (2) Although the thickness of the resin inner container is reduced, the type that obtains rigidity in the exterior that is combined with the paper container box and paper cup container with the bottom on the exterior is known, both of which increase the cost Had to be forced.
Reality No. 1-28005

This invention was invented in view of the above circumstances, and its main problem is
By inserting a plastic inner container into a paper outer sleeve with the same structure as a paper cup without a bottom, the container can be made to have the desired strength and shape, and on the surface Since the outer sleeve appears, the object is to provide a container that can be printed and has a heat insulating effect.

In order to solve the above-mentioned problems, the present invention provides
A paper-made outer sleeve having an outwardly curled portion at the upper end of the barrel portion formed in a cylindrical shape, and a lower end folded inside;
It comprises a plastic inner container fitted at the upper end with a flange part fitted on the curl part and fitted into the hollow of the outer sleeve.
In the invention of claim 2,
The inner container has a curved corner, a peripheral wall surface is formed in a tapered shape that gradually becomes narrower downward, and the outer sleeve and the inner container are formed so that the gap gradually expands downward. It is characterized by being.

In the present invention, the plastic inner container is fitted into a paper cylindrical body to form a container, so the inner container can have a desired shape with strength, while the surface is made of paper. Beautiful printing can be performed, and even if the inner container is heated, a heat insulating effect can be obtained.
Since the outer sleeve processes the curled portion and the bottom, it is possible to obtain rigidity even with thin paper, and to reduce the thickness of the inner container, thereby reducing the cost.
Even if the inner container is an elliptical container, a deformed container, or a deformed container, it can be easily handled, and a deformed container with a partition can be formed.
Since the outer sleeve and the inner container are fitted together, separation is easy, and separation and disposal can be easily performed.
Since the round outer sleeve is fitted into the oval container, the central part of the container is lifted from the installation surface, and a gap is formed, which improves the range (i.e., heating).
Moreover, since the bottom part has a yarn bottom structure, the frictional resistance on the conveyor line during filling of food is reduced.

  In the present invention, a plastic inner container is fitted into the hollow of the paper outer sleeve 2 to realize a container having a desired shape and a paper surface.

Hereinafter, preferred embodiments of the container of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 to 4, the container 1 includes a paper outer sleeve 2 and a plastic inner container 10 fitted in the hollow of the outer sleeve 2.

The outer sleeve 2 is made of paper and is formed in a substantially circular shape when viewed from above, and has a barrel portion 3 formed in a cylindrical shape and an outward curl bent at the upper end of the barrel portion 3. And a lower end of the body portion 3 is a leg portion 5 folded inward.
Here, the paper product may have a configuration in which a known plastic film or barrier layer is laminated on the base paper according to the intended use.
At this time, the outer peripheral wall of the outer sleeve 2 may have a shape that hangs as it is, or may have a tapered cross-section that gradually narrows downward.

Since the outer sleeve 2 has the above-described shape, a round sleeve shape without a bottom paper is molded by a conventional paper cup molding machine at the time of molding.
Since the upper curl and bottom part folding-back processing similar to those of the paper cup are performed and processed into a round shape, it is possible to have pinching strength and compressive strength of the sleeve alone.

And it can manufacture easily by removing the attachment process of a bottom surface with the machine which shape | molds a paper cup.
Further, since it is made of paper, a known heat insulating structure such as foaming the surface or forming irregularities can be applied.

On the other hand, the inner container 10 is made of a substantially oval plastic container, and has a structure in which a partition portion and the like are integrally formed as necessary.
The inner container 10 has a flange portion 11 that is hooked on the curl portion 4 from above at the upper end, and the outer peripheral wall 12 is formed in a tapered shape that gradually becomes narrower.
That is, the collar portion 11 is formed in a channel shape and completely covers the curled portion 4 and is fitted and fixed, so that no adhesive is required, and it can be used for a deformed container.
And in the midway position of the collar part 11, the recessed part 11a recessed inside is formed in order to engage with the curl part 4.

When the outer sleeve 2 is also formed in a tapered shape, the angle of the sectional taper of the inner container 10 is set to be larger.
As a result, the inner container 10 hooked to the curled part 4 by the flange part 11 gradually increases the distance between the inner wall surface of the outer sleeve 2 and the outer peripheral wall 12 of the inner container 10 downward. It is difficult for the heat of the vessel 10 to be transmitted to the outer sleeve 2.

Moreover, since the bottom surface 13 of the inner container 10 is set shorter than the lower end of the outer sleeve 2, the bottom surface 13 of the inner container 10 is held in a hollow position by the outer sleeve 2.
In the above embodiment, the case where the inner container 10 is shorter than the outer sleeve 2 is exemplified. However, in the present invention, the inner container 10 may be the same height as the outer sleeve 2 or the inner container 10 may be higher.

Further, although the inner container 10 has an elliptical shape, it may be any shape as long as the corner of the outer peripheral surface 12 of the inner container 10 is curved, such as a circular shape, an oval shape, or a rounded square shape.
Since the outer sleeve 2 has a substantially circular cylindrical shape, the upper end portion of the outer sleeve 2 bends along the outer peripheral wall 12 of the inner container 10 by fitting the inner container 10 into the hollow of the outer sleeve 2, and fits without a gap. It can be worn (Figure 4).

Here, the length of the outer periphery of the inner container 10 is preferably set in advance corresponding to the length of the inner periphery of the upper end of the outer sleeve.
Thus, according to the present invention, the outer sleeve can be formed using a paper cup or paper cup molding machine, and the container can be assembled simply by bending the outer sleeve along the outer periphery of the inner container 10. it can.
In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

It is a perspective view of the container concerning the present invention. It is principal part sectional drawing of a container. It is a perspective view which shows the assembly state of a container, Comprising: (a) is an inner container, (b) is an exterior sleeve, (c) is a figure which shows the state which fitted the inner container to the exterior sleeve. It is a perspective view which shows the assembly state of a container in case an inner container is a deformed container, (a) is an inner container, (b) is an exterior sleeve, (c) is the state which fitted the inner container to the exterior sleeve. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container 2 Exterior sleeve 3 Trunk part 4 Curl part 5 Leg part 10 Inner container 11 Eaves part 12 Outer wall surface 13 Bottom face

Claims (2)

A paper-made outer sleeve having an outwardly curled portion at the upper end of the barrel portion formed in a cylindrical shape, and a lower end folded inside;
A container comprising: a plastic inner container having a flange part fitted on the curl part at an upper end and fitted into a hollow of an outer sleeve. The inner container has a curved corner and a peripheral wall surface that is tapered so that the width gradually decreases downward, so that the outer sleeve and the inner container gradually widen downward. The container according to claim 1, wherein the container is formed as follows.

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