JPH0232981A - Container for food and drink - Google Patents

Abstract

PURPOSE:To provide a container high in the exterior strength of its outer container part and inexpensive to manufacture while maintaining an insulating effect by bringing the side wall of an inner container into a linear contact with that of an outer container. CONSTITUTION:An outer container 1 has a side wall 2 shaped into the form of a regular hexagon and tapered down to a similar form, and a bottom 3 near the lower part of the side wall 2. An inner container 4, provided inside the outer container 1, is gradually blended to the form of a cylinder with its side wall 5 tapering down while internally touching the side wall 2 of the outer container 1 at six touching parts thereof, leaving spacings 7 out of touch with the other parts thereof. The bottom 8 of the inner container 4 is curved upwardly leaving a spacing 9 in the center thereof with its outer peripheral edge in contact with the bottom 3 of the outer container 1.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a food and beverage container for storing processed seasoning foods such as soups and curries.

[Conventional technology]

BACKGROUND ART Recently, retort foods have become widely consumed due to their ease of consumption, food preservation, and safety.

Conventionally, containers for such retort food have had an inner container that can be sterilized by retort, and an outer container that holds this inner container, and the opening of the inner container is sealed with a lid material and covered with an overcap. There was something I put in.

(Problems to be Solved by the Invention) By the way, in such retort food, the food stored in the microwave oven etc. is heated when eaten.Therefore, the conventional outer container and inner container are in close contact with each other. In containers, the heat of the stored food is directly transmitted to the outer container via the inner container, resulting in poor heat retention of the food and, in some cases, the outer container becomes so hot that it cannot be held by hand.

Further, in order to solve this problem, there has been a container in which the inner container and the outer container are not brought into close contact with each other, but are provided with a space, and this space has a heat insulating effect.

However, in containers with a space between the inner container and the outer container, the outer container has weak external strength, so it may deform during transportation and lose its commercial value, and it may feel unstable when held in the hand. It was. In particular, this was a big problem in the case of large containers and tube-shaped outer containers.

Furthermore, if the rigidity of the outer container is increased in order to increase its external strength, the cost of materials increases.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems and provide a container for food and beverages that maintains a heat insulating effect, has a strong outer container, and is inexpensive.

[Means for Solving the Problems] The present invention has been made to achieve the above object, and is configured such that an inner container and an outer container are brought into contact with each other with a space interposed therebetween.

That is, the food and beverage container of the present invention includes an inner container for storing food and beverages, and an outer container provided outside the inner container with a space therebetween, in which a side wall portion of the inner container is provided. The structure is characterized in that the container and the side wall of the outer container are in linear contact with each other.

The inner container stores food and drink products, and is formed of various shapes and materials depending on the food and drink products to be stored. for example,
If retort food such as soup is directly stored,
It must be made of a material that can be retort sterilized and maintain quality such as gas barrier properties.

The outer container holds the inner container, and its shape may be changed as appropriate, such as cup-shaped, sleeve-shaped, bottle-shaped, etc., depending on the food and drink to be accommodated. Further, the outer container is formed of paper, polypropylene resin, polyethylene resin, etc. into the above-mentioned predetermined shape.

To bring the side wall of the inner container into linear contact with the side wall of the outer container, for example, the outer container may be formed into a circular shape and the inner container may be formed into a polygon that is inscribed in the outer container, or vice versa. The outer container may be formed into a circular shape, and the outer container may be formed into a polygon that circumscribes the inner container, or the inner container and the outer container may be formed into the same polygon, and the corners of the inner container may be in contact with the center of each side of the outer container. Alternatively, a protrusion may be provided on the outer circumferential surface of the inner container so that the protrusion makes contact with the outer container, or an annular protrusion may be provided in the circumferential direction of the inner container and this annular protrusion may be attached to the outer container. Let them come into contact. In addition,
It is preferable to form the outer container into a polygonal shape because it has a design effect.

Moreover, the contact of the filaments does not need to be provided over the entire length of the outer container in the axial direction or the circumferential direction, and may be provided only partially. Furthermore, this linear shape may have a certain width within a range that does not transmit much heat.

In short, any contact that can improve the external strength of the outer container while maintaining the heat insulation properties between the inner container and the outer container may be used, and may be changed as appropriate depending on the size and shape of the container, the type of food and drink to be stored, etc. Ru.

The food and drink container of the present invention is used for various food and drink containers that require insulation. Examples of the foods and drinks include soup, curry, porridge, miso soup, coffee, and tea.

[Effect]

In the food and beverage container of the present invention, the space between the outer container and the inner container prevents heat from the inner container, which has become high due to microwave ovens, pouring boiling water, etc., from being transferred to the outer container. The inner container supports the outer container at the contact part of the container so that it can withstand external pressure.

〔Example〕

An embodiment of the food and beverage container according to the present invention will be described with reference to FIGS. 1 to 3.

FIG. 1 is a partially cutaway plan view of the food and beverage container, FIG. 2 is a cross-sectional view taken along the line A--A in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line B--B in FIG.

In these figures, numeral 1 is an outer container, and this outer container 1
The side wall portion 2 is formed in a regular hexagonal shape and narrows in a similar shape toward the bottom, and a bottom portion 3 is formed near the lower end of the side wall portion 2.

An inner container 4 is provided inside the outer container 1, and the inner container 4 is formed into a cylindrical shape whose side wall 5 becomes narrower toward the bottom where it is inscribed in the side wall 2 of the outer container 1. It contacts the side wall portion 2 at six contact portions 6, and the other portions do not contact the side wall portion 2, forming a space portion 7. The bottom 8 of the inner container 4 is curved upward at the center, and its outer periphery contacts the bottom 3 of the outer container 4, forming a space 9 at the center.

Further, the upper end of the inner container 4 is bent in the horizontal direction to form a flange portion 10 , and the outer circumferential end of this flange portion 10 is bent downward to form a bent portion 11 , which is a bent portion of the outer container 1 . 1
2 is engaged.

A lid material 13 that allows easy beer is attached to the upper surface of the flange portion 10 of the inner container 4, and an overcap 14 is provided above the lid material 13 to engage with the bent portion 11. There is.

The outer container 1 is made of waterproof paper, the inner container 4 is made of a laminated film consisting of a layer of polypropylene and a layer of polyvinylidene chloride, and the lid material 13 is made of an easy-peel material of a multilayer film. 14 is made of polypropylene.

4 to 6 are views showing other embodiments, in which FIG. 4 is a longitudinal cross-sectional view of the food and beverage container, FIG. 5 is a cross-sectional view taken along the line CC in FIG. 4, and FIG. It is a sectional view taken along the line DD in FIG. 4.

The food and beverage containers shown in these figures are formed into a cylindrical shape in which the side wall portion 2 of the outer container 1 becomes narrower as it goes downward. The side wall portion 5 of the inner container 4 is formed in a regular hexagonal shape, and its upper half is inscribed in the side wall portion 2 at six contact portions 6, and the approximately lower half thereof has a tapered portion 16 that is more inclined inwardly. The outer periphery of this tapered portion 16 forms a space 7 over the entire surface.

Figures 7 to 9 also show other embodiments, where Figure 7 is a longitudinal cross-sectional view of the food and beverage container, Figure 8 is a cross-sectional view taken along the line CC in Figure 4, and Figure 9 is a cross-sectional view of the container for food and beverages. It is a sectional view taken along the line FF in FIG. 7.

In the food and beverage containers shown in these figures, the side wall 2 of the outer container 1 has a regular hexagonal shape and is formed into a cylindrical shape that becomes narrower toward the bottom. Further, the inner container 4 is formed in the same shape as the inner container 4 of the embodiment shown in FIGS. The tapered portion 16 in the substantially lower half is in contact with the side wall portion 2.
The entire outer periphery is in contact with the space 7 without contacting with the space 7.

FIG. 10 and FIG. 11 are also diagrams showing other embodiments.
The figure is a vertical cross-sectional view of a container for food and beverages, and Figure 11 is C in Figure 4.
-C line sectional view.

In the food and beverage containers shown in these figures, the outer container 1 is formed similarly to the outer container 1 of the embodiment shown in FIGS. 1 to 3 above. The inner container 4 is formed into a cylindrical shape with a side wall 5 that narrows downward, and the outer peripheral surface of the side wall 5 is provided with three stages of contact pieces 18 that protrude along the entire circumference. It is formed.

The tip of this contact piece 18 is connected to the side wall portion 2 of the outer container 1.
A four-stage space 7 is formed in the vertical direction between the inner container 4 and the outer container 1.

FIGS. 12 to 14 are cross-sectional views of other embodiments, respectively.

In the food and beverage container shown in FIG. 12, an outer container 1 is formed in a cylindrical shape, and an inner container 4 is formed in a square rectangular tube shape inscribed in the outer container 1. It is in contact with the outer container 1 as a contact portion 6 .

In the food and beverage container shown in FIG. 13, both the outer container 1 and the inner container 4 are formed in a square rectangular tube shape, and the inner container 4 is arranged in a state rotated by 45 degrees with respect to the outer container 1, and the inner container 4 is arranged in a state rotated by 45 degrees with respect to the outer container 1. A corner of the container 4 is in contact with the middle of each side wall 2 of the outer container 1.

In the food and beverage container shown in FIG. 14, the outer container 1 is
Like the outer container 1 of the embodiment shown in FIGS. 6 to 6, it is formed into a substantially cylindrical shape. The inner container 4 is formed into a substantially cylindrical shape like the outer container 1, and a contact piece 20 that protrudes outward in the generatrix direction is formed on the outer peripheral surface of the inner container 4. Four spaces 7 are formed which are in contact with the inner circumferential surface of and divided in the circumferential direction.

(Effects of the Invention) In the present invention, the side wall of the inner container and the side wall of the outer container are brought into linear contact, and the outer container is supported by the inner container on the inside thereof. Therefore, the outer container can be easily held without being deformed when eating, and the container can be made larger, and sleeve-shaped outer containers without a bottom can be widely adopted.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view of an embodiment of the food and beverage container according to the present invention, FIG. 2 is a sectional view taken along the line CC in FIG. 4, and FIG.
The figure is a sectional view taken along the line C-C in FIG. 4, FIG. 4 is a vertical sectional view of another embodiment, FIG. 5 is a sectional view taken along the line C-C in FIG. 4, and FIG. -D sectional view, FIG. 7 is also a longitudinal sectional view of another embodiment, FIG. 8 is an E-E IFr sectional view in FIG. FIG. 10 is also a longitudinal cross-sectional view of another embodiment, FIG. 11 is a cross-sectional view taken along line GG in FIG. 10, and FIGS. 12 to 14 are cross-sectional views of other embodiments. 1...Outer container 4...Inner container 6...Contact part 2...Side wall part 5...Side wall part 7...Space part

Claims (1)

[Claims] In a container having an inner container for storing food and drink and an outer container provided outside the inner container through a space, a side wall of the inner container and a side wall of the outer container are in linear contact with each other. A food and beverage container characterized by being