JP2000016468A - Heat insulating container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make clear an indicating part on the outer surface a heat insulating container for receiving foodstuffs such as hot soup and reduce the temperature rise of the outer surface of the container due to the temperature of the contents thereof, thereby allowing the container to be held by hand. SOLUTION: A cup comprises a cup body 2 and a jacket 3. The body is made from a polypropylene. A plurality of vertical protruding strips 21 are spaced apart predetermined intervals circumferentially alternately with grooves 22, each of which is formed between the strips 21. The jacket 3 also is made from a polypropylene, and the upper and lower parts of the strips 21 are covered with the upper and lower parts of the jacket 3, respectively; however, the upper and lower parts of each groove 22 are not closed but opened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulated container, and more particularly to an insulated container capable of mitigating a rise in the temperature of an outer surface due to the temperature of a stored item and being safely used without fear of burns.

[0002]

2. Description of the Related Art At a food store in a large supermarket or a large event venue such as a shopping street, a large number of people who are present can place hot soup, miso soup, shiruko, zenzai, and udon in a container on the spot. Distributed for publicity. Further, there is an instant food in which the above-mentioned food or the like is stored in a container. In the case of an instant food, etc., it is cooked by pouring hot water before being eaten or heated by a microwave oven or the like.

[0003] Containers for eating the above-mentioned heated food include containers such as plastic or paper cups provided with heat insulation as described below in order to prevent the user from being burned. Had been used.

[0004] A plastic cup formed of foam beads and provided with heat insulation by the heat insulation property of the foam and the thickness of the cup itself. A paper cup in which a corrugated piece of paper is mounted on the outer surface, the corrugated piece of paper is covered with another piece of paper, and a closed space is formed. A paper cup with a paper handle.

[0005]

However, the above-mentioned cup has a problem that the outer surface thereof has an uneven shape and the display portion is not clearly formed by printing or the like. Although a material with low thermal conductivity is used, the temperature of the outer surface rises considerably after a certain period of time, and the cup becomes hot, so it cannot be held firmly by hand, which is inconvenient to eat. Was. In addition, although the cup uses a material with low thermal conductivity, the air gap formed on the surface is closed and convection does not occur, so the temperature of the outer surface rises considerably after some time, The cup became hot and could not be held firmly by hand, which was inconvenient to eat. Furthermore,
The cup was not strong enough to be deformed or damaged when food was put into it, and could not be eaten with confidence.

The present invention has been made to solve the above-mentioned problems, and the display portion on the outer surface is clear, so that the temperature rise of the outer surface due to the temperature of the stored items can be reduced, and there is no hindrance to holding the container by hand. An object of the present invention is to provide a heat insulating container that can maintain the temperature of the outer surface.

[0007]

Means of the present invention taken to achieve the above object are as follows. According to the first invention, there is provided an insulated container provided with a structure for mitigating a rise in temperature of an outer surface due to a temperature of a container, the container body, and a jacket covering an outer surface of the container body, , Wherein a ventilable space is provided between the container body and the outer cover.

According to a second aspect of the present invention, there is provided an insulated container provided with a structure for mitigating a rise in temperature of an outer surface due to a temperature of a stored object, the container body and an outer covering the outer surface of the container body. And a plurality of vertically extending ridges and concave grooves formed between the ridges are provided on the outer surface of the container body at a required interval in the circumferential direction. A heat-insulating container characterized in that a ventilable space is formed between the case and the outer cover.

According to a third aspect of the present invention, there is provided an insulated container provided with a structure for alleviating a rise in the temperature of the outer surface due to the temperature of the container, wherein the outer wall of the container covers the outer surface of the container body. And a plurality of vertical ridges and concave grooves formed between the convex ridges are provided on the outer surface of the container main body at required intervals in the circumferential direction. A gap is formed between the casing and the outer casing, and the gap is open at the top and bottom to enable ventilation.

According to a fourth aspect of the present invention, there is provided the heat insulating container according to the first, second or third aspect, wherein the surface of the outer cover is a display portion.

Although the material of the container body is not particularly limited, for example, plastic or paper is used. As the plastic, polyvinyl chloride, polyethylene, polypropylene, polyethylene terephthalate, or the like is used. In general, a solid body is used, but a foam may be used.

The material of the jacket covering the outer surface of the container main body is not particularly limited, and for example, the above-mentioned plastic or paper is used. When an instant food or the like is stored in the container, the outer cover serves as a display unit, and a product name or a description of the product for advertisement of the stored food is printed.

(Operation) When a high-temperature food or the like is stored in the heat-insulating container according to the present invention, the heat is transmitted through the container main body to increase the temperature of the air in the concave groove, and the temperature of the jacket also increases. Since the groove is configured to be able to ventilate, when the air in the groove becomes hot and light, it rises inside the groove and is discharged to the outside,
At the same time, new room temperature air comes in from below.

In this way, the heat is efficiently released to the outside of the gap by the exchange of air, and the container is cooled. Therefore, even if high-temperature food is stored in the container body, the temperature of the outer jacket does not rise so much, and even if the container is held, the hand does not become hot and cannot be held. Can eat food. Further, the heat insulating container is covered with a plastic or paper jacket, and the jacket is usually almost smooth in surface, so that a printed display portion is clear.

[0015]

Embodiments of the present invention will be described in more detail with reference to the drawings. 1 is a front view showing an embodiment of a cup according to the present invention, FIG. 2 is a cross-sectional view taken along line AA in FIG. 1, FIG. 3 is a bottom view of the cup, and FIG. FIG. 5 is a partial perspective view of the lower side of the cup,
6 is a front view of a cup body constituting the cup, FIG. 7 is a sectional view taken along line BB in FIG. 6, and FIG. 8 is a perspective view of a jacket constituting the cup.

The cup 1 includes a cup body 2 and a jacket 3 covering the cup body 2. The cup body 2 is made of polypropylene. On the outer surface of the cup body 2, a plurality of vertical ridges 21 and concave grooves 22 formed between the ridges 21 are provided at predetermined intervals in the circumferential direction.

The jacket 3 is also made of polypropylene. The outer cover 3 has a cylindrical shape, and a display unit 31 is printed on a surface thereof. The upper and lower portions of the jacket 3 cover the upper and lower portions of the concave groove 22, but the upper and lower portions of the concave groove 22 are not closed as described above, and are in an open state (FIG. 2, FIG. 3 or FIG. 6, FIG. 7).

(Operation) The operation of the embodiment of the present invention will be described with reference to FIGS. When high-temperature food or the like is stored in the cup 1, the high-temperature heat travels through the cup body 2 to increase the temperature of the air in the concave groove 22 and the temperature of the jacket 3. Since the air in the groove 22 becomes lighter as the temperature rises, it rises in the groove 22 and is discharged to the outside from the upper open part. Instead, new air outside enters from the lower part and enters the groove 22. The air is replaced by cold air.

Since the air is exchanged in this manner, heat is efficiently released, so that the cup 1 is cooled. Therefore, even if high-temperature food or the like is stored in the cup body 2, the temperature of the jacket 3 does not rise so much, and the hands do not become hot even when the cup 1 is held, and the inside of the cup 1 is safely protected. You can eat food.

In addition, unlike the conventionally used paper cup with a paper handle or the like, the cup 1 has
Since there is no paper handle or the like, there is no risk of deformation or breakage, and the stored food can be eaten with confidence.

The terms and expressions used in the present specification are for explanation only, are not restrictive, and do not exclude terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the technical idea.

[0022]

The present invention has the above configuration and has the following effects. (A) When high-temperature food or the like is stored in the heat-insulating container, the heat is transmitted through the container main body to increase the temperature of the air in the concave groove, and the temperature of the jacket also increases. Since the groove is configured to be ventilable, when the air in the groove becomes high in temperature and becomes light, it rises in the groove and is discharged to the outside, and at the same time, new room temperature air enters from the lower part. In this manner, heat is efficiently released to the outside of the gap by the exchange of air, and the container is cooled. Therefore, even if high-temperature food is stored in the container body, the temperature of the outer jacket does not rise so much, and even if the container is held, the hand does not become hot and cannot be held. Can eat food.

(B) The heat-insulating container according to the present invention is covered with a plastic or paper jacket, and the jacket usually has a substantially smooth surface, so that the printed portion is clear.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a cup according to the present invention.

FIG. 2 is a cross-sectional view taken along line AA in FIG.

FIG. 3 is a bottom view of the cup.

FIG. 4 is a partial perspective view of the upper side of the cup.

FIG. 5 is a partial perspective view of a lower portion of the cup.

FIG. 6 is a front view of a cup body constituting the cup.

FIG. 7 is a sectional view taken along line BB in FIG. 6;

FIG. 8 is a perspective view of a jacket constituting the cup.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cup 2 cup body 21 ridge 22 concave groove 3 jacket 31 display

Claims (4)

[Claims] 1. A heat insulating container provided with a structure for mitigating a rise in temperature of an outer surface due to a temperature of a container, comprising: a container main body; and a jacket covering an outer surface of the container main body. An insulated container, characterized in that a ventilable space is provided between the container body and the jacket. 2. A heat insulating container provided with a structure for mitigating a rise in temperature of an outer surface due to a temperature of a container, comprising: a container main body; and a jacket covering an outer surface of the container main body. A plurality of vertical ridges and concave grooves formed between the convex ridges are provided on the outer surface of the container main body at a required interval in the circumferential direction, and between the concave grooves and the jacket. Is an insulated container characterized by having a ventilable void formed therein. 3. A heat insulating container provided with a structure for mitigating a rise in temperature of an outer surface due to a temperature of a container, comprising: a container main body; and a jacket covering an outer surface of the container main body. A plurality of vertical ridges and concave grooves formed between the convex ridges are provided on the outer surface of the container body at a required interval in the circumferential direction, and between the concave grooves and the jacket. Is an insulated container, characterized in that a void is formed, and the void is open at the top and bottom to allow ventilation. 4. The heat-insulating container according to claim 1, wherein the surface of the jacket is a display section.