JPH033465Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to a double container with a lid.

(Prior art) Conventionally, as a double container, an outer box was screwed onto the outer surface of the downward fitting wall of the outward facing flange of the inner box, and a cap was screwed onto the outer surface of the opening of the inner box. (Japanese Utility Model Publication No. 56-40673), or the outer container is fitted to the inner container with an annular protrusion and a sensitive protrusion at the bottom, and the opening above the outer flange of the inner container is fitted. A device in which the cap is screwed together (Japanese Utility Model Publication No. 48-43053) is disclosed.

(Problem to be solved by the invention) Regarding the former disclosed above,
The outward flange of the inner box visible between the outer case and the cap, and in the case of the latter, the outward flange of the inner container visible between the outer container and the cap, are both represented by thin lines. When these double containers are used as storage containers for foods such as ice cream, 2
As a heavy container, it was difficult to detect, and consumers did not have a sense of security.

The present invention was devised in view of these points, and its purpose is to improve the appearance of the
To provide a sense of security to consumers by making it easy to sense the container as a double storage container for foods such as ice cream, and to facilitate engagement and assembly.

(Means for solving the problem) In order to achieve the above object, the present invention solves the problem by forming a wide flange surface between the lid and the outer container body. We are trying to find a solution.

That is, the present invention provides a double container main body having an air layer between the inner container main body and the outer container main body, in which a projecting edge is formed in the vertical direction at the end of the flange projecting outward from the inner container main body. By engaging the outer container main body with the lower flange and the lid body with the inner stepped portions of the upper flange, the lid body, the wide flange surface and the outer container body are connected to each other. The structure is such that the outer surface is a uniform surface.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

As shown in FIG. 1, the double container with lid of the present invention has a lid B fitted to a double container main body A consisting of an inner container main body A and an outer container main body B.

As shown in FIG. 2, the inner container body a constituting the container body A has an outwardly facing flange portion 1, and this flange portion 1 has an upper flange 2 and a lower flange portion at its end. A projecting edge 3 is formed.

The inner sides of the projecting edges 2 and 3 are slightly inclined 2' and 3' toward the inner container body a side.

The outer container body b has a flange 4 on the inside of its upper opening, and the outer container body b has an outwardly inclined portion 4' of the flange 4 so that the flange 1 of the inner container body a is A double container main body A is constructed by fitting and bonding to the inclined part 3' of the lower projecting edge 3,
An air layer 5 is formed between the inner container body a and the outer container body b.

In addition, the lid B has an inner protrusion 6 at its lower end,
An inclined portion 2' of the upper flange 2 of the flange portion 1 of the inner container body a, with an inclined portion 6' directed toward the outside thereof.
It is fitted against the

Since the fitting of the outer container body b and the lid body B to the inner container body a is done by having an inclined step part, the inner container body a and the outer container body b are easily adhered, and the lid body B is easy to fit into the inner container body a.

Since the inner container body a stores food such as ice cream, it is made of sanitary material and is colored in a different color from the outer container body b and the lid B.

3 and 4 show the process and state of engagement of the outer container body b with the inner container body a. Engagement protrusions 7, 7 are provided around the circumference, and engagement protrusions 8, 8 that engage with the above-mentioned engagement protrusions 7, 7 are provided on the inside near the upper opening of the outer container main body b. It is set up.

When the outer container body b is fitted onto the inner container body a having such a structure and pressed in the direction of the arrow x,
These container bodies a and b are made of plastic or a composite material of paper and metal, so
The engaging protrusions 8 are distorted to each other, and the engaging protrusions 8 cross over the engaging protrusions 7 to engage with each other, resulting in the engaged state shown in FIG. ,
It comes into close contact with the inclined portion 3' of the lower protruding edge 3 of the flange portion 1 of the inner container body a, forming a double container body A.

Next, Figure 5 shows a graph comparing the thermal insulation properties of a single-walled container and a double-walled container made of the same material.
It is shown in FIG.

Although the difference in the thickness of the air layer between 1 mm and 3 mm in a double-layered container does not have a great effect on the thermal insulation, there is a noticeable difference in the thermal insulation between a single-layered container and a double-layered container.

In Figure 5, 47℃ hot water is stored in a single container and in two containers.
Fill a heavy container (air space 1mm and 3mm) with 450ml,
Set the sensor (thermocouple) in the center of the container,
This was placed in a case with an average temperature of 8°C, and the temperature drop of each sample was measured every 20 minutes over a period of 5 hours.

In Figure 6, 450 ml of ice cream is filled in a single container and a double container, and the ice cream is cured at -40℃, and the temperature of the ice cream on the side of the container increases at room temperature of 34℃. The temperature was measured every 5 minutes for 60 minutes, and the time it took for the temperature of the ice cream to rise to -10°C was 17 minutes for the single container and 30 minutes for the double container.

As a result, it was confirmed that the double-walled container has good heat insulation properties and is suitable for keeping things hot and cold.

(Effects of the invention) Since the present invention is a double container with a lid, it has excellent heat insulation and impact resistance, and is suitable for keeping warm and cold. A projecting edge is formed in the vertical direction at the end of the flange portion of the container body, and the projecting edge of the lower part has an outer container body, and the projecting edge of the upper part has an inner stepped part for the lid body. By engaging with each other, the outer surfaces of the lid, the wide flange surface, and the outer container body are formed into a uniform surface. When containing food such as cream, it is easy to tell from the appearance that it is a double storage container, giving consumers a sense of security, and improving the appearance of the container as a whole. It will be good.

Furthermore, since the inner container body and the outer container body are engaged by the stepped portion, it is easy to assemble the double container.

[Brief explanation of drawings]

Fig. 1 is a front view of the double container with lid of the present invention, with half cut away, Fig. 2 is an enlarged sectional view of the main part, Fig. 3 is an enlarged sectional view showing another form of engagement process, and Fig. 4 The figure is an enlarged sectional view of the main parts in the engaged state as above, and Figure 5 is 1
Figure 6 is a graph comparing heat insulation properties between a heavy container and a double container, and a temperature rise graph of ice cream packed in a single container and a double container. Code A...Double container body, B...Lid, a...
Inner container main body, b... Outer container main body, 1... Flange portion, 2... Upper projecting edge, 3... Lower projecting edge, 4...
...Inner ridge, 5...Air layer, 6...Inner ridge, 7
...Engagement protrusion, 8...Engagement protrusion.

Claims (1)

[Scope of utility model registration request] In a double container main body having an air layer between the inner container main body and the outer container main body, a projecting edge is formed in the vertical direction at the end of the flange projecting outward from the inner container main body. By engaging the outer container body with the flange and the lid body with the inner step part with the upper flange edge, the outer surfaces of the lid body, the wide flange surface, and the outer container body are made to have a uniform surface. A double container with a lid, characterized in that it is configured so that