JP2004001849A - Thermally insulated container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thermally insulated container which can be handled with bare hands without being influenced by heat of a content such as hot water or the like, and is excellent in convenience and safety. <P>SOLUTION: The container is constituted of a container body, an outer layer film and an inner layer film sheathing the body part of this container body in a rolled state, and a bag-shaped label provided with an air blowing inlet capable of forming an air chamber between both films. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a container having a body provided with a heat insulating and heat retaining function.
[0002]
[Prior art]
Containers used to pour coffee, pour hot water into it, cook, and then eat and drink, such as cup noodles and instant miso soup, have insulation that is not hot when held with bare hands. A function to keep the function and the temperature of the contents low is required. For such a purpose, a container made of styrene foam is conventionally used.
[0003]
In Japanese Patent Application Laid-Open No. Hei 6-32379, a protrusion is formed on all or a part of the outer peripheral surface of a container body, a heat-shrinkable plastic film is provided outside the protrusion, and the plastic film is heated to apply heat. There is disclosed a technique in which a heat insulating container is formed by shrinking the container so that the container is in close contact with the outer periphery of the container main body and a heat insulating space is formed between the projections.
[0004]
[Problems to be solved by the invention]
However, even in the case of the above-mentioned conventionally used styrofoam container or the container described in JP-A-6-32379, it is often impossible to grasp it with bare hands immediately after pouring hot water. there were.
[0005]
In view of the above, the present invention has been made in order to solve the above-described problems in the related art, and has made it possible to handle containers with bare hands without being affected by the heat of contents such as boiling water. An object of the present invention is to provide an insulated container excellent in convenience and safety.
[0006]
[Means for Solving the Problems]
Among the means for solving the above technical problems, the means of the invention according to claim 1 comprises a container main body, an outer layer film and an inner layer film for covering the body portion of the container main body in a wound shape, and both of them. And a bag-shaped label provided with an air blowing port with a check valve so that an air chamber can be formed between the films.
[0007]
According to the above configuration, when air is not blown between the two films, the label performs the same function as a normal label, such as displaying a product name and decorating a container.
[0008]
When air is blown in from the air blowing port as needed, air enters between the outer layer film and the inner layer film to form an air chamber, and further, the air chamber is maintained by the action of the check valve. In addition, the air chamber exhibits an excellent heat insulating effect, the container can be handled with bare hands without being affected by the heat of the contents such as boiling water, and a decrease in the temperature of the contents can be suppressed.
[0009]
According to a second aspect of the present invention, in the first aspect of the present invention, a belt-shaped sealing portion for sealing the outer layer film and the inner layer film is formed in a state where the entire air chamber is in communication.
[0010]
According to the above configuration, the sealing portion serves as a knot portion relating to deformation of the outer layer film and the inner layer film when air is blown, and the air chamber is formed in a shape having irregularities.
[0011]
Here, in the convex portion of the air chamber, the dent deformation of the outer layer film due to the pressing of the finger or the like at the time of grasping with bare hands is suppressed, so that the air of the portion suppressed by the finger etc. escapes to another portion and the outer layer film is Can effectively suppress a phenomenon in which heat is transmitted to a finger or the like by contact with the inner layer film.
[0012]
According to a third aspect of the present invention, in the second aspect of the present invention, the container main body forms a vertical striped rib over the entire outer surface, and the label has a vertical strip at a position facing the top of the rib. A configuration in which a seal portion is formed and the container body is exteriorly provided.
[0013]
According to the above configuration, when air is blown from the air blowing port, the seal portion located at the apex of the rib and formed in the vertical direction serves as a knot portion and a fixed portion, and the outer layer film is formed between the adjacent ribs outside. , The inner layer film is deformed toward the concave portion formed between the adjacent ribs.
[0014]
As a result of the above-mentioned deformation mode, an air chamber is formed while arranging a large number of substantially tube-shaped spaces in the vertical direction along the entire periphery of the container body, and this shape is a shape that is not easily crushed by pressing with a finger or the like, Sufficient heat insulating effect is obtained, and the shape becomes easy to hold with bare hands.
[0015]
The method of blowing air when using the heat insulating container of the present invention is not particularly limited.For example, when selling after blowing air at a store, the air may be blown from an air cylinder or the like, Air can be blown from the mouth when needed.
[0016]
A bag-shaped label is a method in which two pieces of film are stacked and heat-sealed at the periphery. A cylindrical film obtained by inflation molding is folded in two, cut into appropriate sizes, and then heat-sealed on the cut two sides. There are methods.
[0017]
The film forming the label is not particularly limited, but depending on the shape of the container body, etc., heat-shrinkable PET (polyethylene terephthalate), PS (polystyrene), PVC (polyvinyl chloride), PP (polypropylene) , PE (polyethylene) film or the like, or a stretchable PET, PB (polybutylene), PVC, PVD (polyvinylidene chloride) film or the like allows the outer surface of the container main body to be covered without slack.
[0018]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 3 show a first embodiment of the heat insulating container of the present invention, and FIG. 1 shows a state where the container body 1 and the label 7 are disassembled and a state where air is blown.
[0019]
The container body 1 is a container made of a synthetic resin formed by a thermoforming method, and a large number of ribs 3 are formed on a cylindrical body 2 in the form of vertical stripes up to the bottom except for the upper part. .
[0020]
The label 7 is formed by laminating two heat-shrinkable rectangular synthetic resin films, heat-sealing the four sides thereof, and attaching an air blowing port 8 provided with a check valve 9 inside the center of the upper side by heat welding. A number of vertical strip-shaped seal portions 12 are formed by heat sealing in a region excluding upper and lower portions in accordance with the number of ribs 3 and intervals of the container body 1 in the vertical direction.
[0021]
The left and right end portions of the label 7 are overlapped and heat-sealed to form a cylindrical shape. The position of each vertical band-shaped seal portion 12 is aligned with the top of each rib 3 of the container body 1, and the body portion of the container body 1 is formed. 2 is packaged. When the film is thermally shrunk by being inserted in hot air or a hot atmosphere in the state of being packaged as described above, the label 7 composed of the package film 5 and the inner layer film 6 is placed on the top of the rib 3 in the state shown in FIG. The body 2 is externally attached in a state in which the body 2 is in close contact with the body.
[0022]
In this state, when air is blown from the mouth or from an air cylinder or the like, the air chamber 11 expands to have a shape as shown in FIGS. 1 and 3, and the exterior film 5 expands outward between the adjacent ribs 3. .
[0023]
Further, since the inner film 6 is deformed so as to follow the shape of the concave portion 4 formed by the adjacent rib 3, when the air is blown, the position of the sealing portion 12 and the apex of the rib 3 are maintained without being shifted. be able to.
[0024]
As a result of the deformation of the outer layer film 5 and the inner layer film 6, an air chamber 11 is formed while arranging a large number of substantially tube-shaped spaces in the vertical direction along the entire circumference of the container body 1, and this shape is formed by a finger or the like. The shape is not easily crushed by pressing, and a sufficient heat insulating effect is obtained. Further, the shape is easy to hold with bare hands.
[0025]
In the first embodiment, a heat-shrinkable film was used to cover the label 7 in close contact with the top of the rib 3, but the film used in the present invention is limited to a heat-shrinkable film. Instead, a film to be used can be selected and used according to the shape of the container body and the like.
[0026]
FIG. 4 shows a second embodiment of an insulated container according to the present invention. The container body 1 is formed by a bag-shaped label 7 having an air blowing port 8 provided with a check valve 9 inside a coffee cup made of synthetic resin. Of the body 2 of FIG.
[0027]
Although the label 7 does not have the seal portion 12 seen in the first embodiment, the width of the label in the height direction is made relatively small, so that the portion to which a finger or the like is pressed when grasped by hand is applied. The air layer does not collapse easily.
[0028]
In the first and second embodiments, the container body 1 is made of synthetic resin. However, according to the structure of the present invention, the effects of the present invention are sufficient even when the container body 1 is made of metal or ceramic. It is exhibited in.
[0029]
【The invention's effect】
Since the present invention is configured as described above, the following effects can be obtained.
According to the first aspect of the present invention, before use, it functions as a normal label, and by blowing air, the air chamber exhibits an excellent heat insulating effect and is affected by the heat of the contents such as boiling water. The container can be handled with bare hands without the need, and a decrease in the temperature of the contents can be suppressed.
[0030]
According to the second aspect of the present invention, by providing a large number of band-shaped seal portions in the air chamber, the air chamber has a shape having irregularities, dents caused by fingers or the like when gripping are suppressed, and Handleability can be better ensured.
[0031]
According to the third aspect of the invention, since the air chamber is formed while arranging a large number of substantially tube-shaped spaces in the vertical direction along the entire circumference of the container body, there is no crushing due to pressing of a finger or the like, Sufficient heat insulating effect is obtained, and the shape becomes easy to hold with bare hands.
[0032]
Further, since the inner layer film 6 is deformed into a shape along the concave portion formed by the rib 3 of the adjacent container body, the label can be kept in a stable shape without displacement due to blowing of air.
[Brief description of the drawings]
FIG. 1 is an explanatory perspective view showing a disassembled state of a first embodiment of a heat insulating container of the present invention and a state in which air is blown into an air chamber in a perspective view as a whole.
FIG. 2 is a cross-sectional plan view showing, in an enlarged manner, a part of a body portion of the label in the first embodiment of the heat insulating container of the present invention.
FIG. 3 is a plan sectional view showing a state in which air is blown into an air chamber in FIG. 2;
FIG. 4 is an overall perspective view showing a second embodiment of the heat insulating container of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1; Container main body 2; Body part 3; Rib 4; Concave part 5; Outer film 6; Inner film 7; Label 8; Air blowing port 9; Check valve 11; Air chamber 12;

Claims (3)

A container body (1) and an outer layer film (5) and an inner layer film (6) for winding the body (2) portion of the container body (1) in a roll shape, and an air chamber is provided between the two films. A bag-shaped label (7) provided with an air blowing port (8) with a check valve (9) to enable the formation of (11). The heat insulating container according to claim 1, wherein a band-shaped sealing portion (12) for sealing the outer film (5) and the inner film (6) is formed in a state where the entire air chamber (11) is in communication. The container body (1) forms a vertically striped rib (3) over the entire outer surface, and the label (7) is positioned at a position facing the top of the rib (3) to form a vertical strip-shaped sealing portion (12). The heat insulating container according to claim 2, wherein the container main body (1) is formed so as to form an exterior.

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