JPH0318351Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a food container that requires heat or cold insulation, such as a fruit container, in particular, which combines an inner container and an outer container made of a synthetic resin molded product with a space between them. This invention was devised to provide a double container that is convenient to use and allows the internal temperature of the container to be easily checked from the outside.

This type of double container is suitable for use as a container for cold and hot foods such as fruit containers and salad bowls, and as a container for heated foods, but whether the food contained is cold or hot foods such as fruit or heated foods. Even in these cases, there is an appropriate temperature for eating the food; for example, if the temperature of a cold food becomes too high or the temperature of a heated food becomes too low, the taste will deteriorate. It is therefore desirable to easily know the exact temperature of the contained food.

In addition, there are some food and drink containers that have temperature-indicating paint or temperature-indicating tape that changes color depending on temperature changes attached to the outside surface to display the temperature of the contents, but these can be used as is for double containers. However, if the same temperature-indicating paint or temperature-indicating tape as described above is attached to the outside surface, the temperature of the contents cannot be accurately displayed, and since it is exposed to the outside, it may come into contact with other objects or be used repeatedly. Damage or peeling may occur due to cleaning.

Therefore, this invention utilizes the structure of a double container,
By installing a temperature indicator in the gap between the inner and outer containers, there is no risk of damage or peeling due to contact with other objects or container cleaning, and the temperature of the contents inside the container is accurately displayed without being affected by external temperature. This was an attempt to provide a double container that could be checked.

In other words, the present invention is an upwardly-opening double container made by combining an inner container made of a synthetic resin molded body and an outer container made of a transparent or translucent see-through synthetic resin molded body with a gap between the two. The container has a heavy structure, and the opening end of the inner container has a fitting flange extending outward from the upper edge of the side, and this fitting flange extends on the upper surface of the inner periphery of the opening end of the outer container. are tightly fitted flush with each other to maintain a sealed gap between the inner and outer containers, and a tape impregnated with a temperature-indicating pigment that changes color due to temperature changes is applied to the outer surface of the side of the inner container within this gap. Alternatively, it is characterized in that a temperature indicating means made of temperature indicating paint is attached.

Next, embodiments of the present invention will be described based on the drawings.

Reference numeral 10 denotes a substantially hollow hemispherical inner container that opens upward and is made of a synthetic resin molded body. Reference numeral 20 denotes an outer container which corresponds to the inner container 10 and has a substantially hollow hemispherical shape with a radius slightly larger than the inner container 10 and has a planar concave bottom portion 2, and is made of a transparent or translucent see-through synthetic resin molding. In the case shown in the figure, a protruding edge 22' serving as a leg portion is formed on the periphery of the bottom portion 21. Then, the inner container 10 and the outer container 20 are connected by fitting at the open ends 14 and 24 of both containers, and are assembled so that a gap a of a required distance is formed between them, thereby forming a double-structured container. ing. That is, a fitting flange 15 is provided at the open end 14 of the inner container 10 and extends outward from the upper edge of the side part.
5 is tightly fitted into the inner periphery of the open end 24 of the outer container 20 with its upper end surface flush with the inner periphery of the open end 24 of the outer container 20, so that a gap a is maintained between the inner and outer containers 10 and 20.

In the illustrated embodiment, the fitting flange 15 includes a horizontal portion 15a extending outward from the upper edge of the side of the inner container 10, and a hanging portion 15 extending downwardly from the edge of the horizontal portion 15a.
The hanging portion 15 has a substantially hook-shaped cross section with b.
The outer periphery of the outer container 20 is resiliently and relatively tightly fitted into the open end 24 of the outer container 20 like an interference fit, so that the gap a is kept in a sealed state. The open end 24 of the outer container 20 is formed to be slightly thicker than the lower side 21, and the upper end surface of the open end and the upper surface of the fitting flange 15 are flush with the inner periphery. A stepped portion 25 is provided which engages with the lower end of the outer periphery of the fitting flange 15 when fitted, thereby enabling positioning.

Reference numeral 30 denotes a temperature indicating means attached to an appropriate position on the outer surface of the side part 11 of the inner container 10 in the space a, and is provided so as to be able to sense the temperature inside the container via the inner container 10 and display the temperature. Put this in outer container 2
It is possible to see through from the outside of 0.

As the above-mentioned temperature indicating means 30, a tape containing a temperature indicating pigment that changes color due to temperature change is pasted, or a temperature indicating paint containing the pigment is applied so that the temperature can be indicated by the change in color. consists of things. According to such a temperature indicating means, it can be installed without any support in a space a having a fairly narrow interval, and its area can be made quite wide so that it can be easily seen from the outside, and it can be easily and inexpensively manufactured. The temperature indicating means 30 can also be attached to a plurality of locations on the outer side surface of the inner container 10.

As for the combination structure of the inner and outer containers 10 and 20, in addition to fitting at the open ends as described above, in addition to this, it is also possible to connect the inner and outer containers 10 and 20 by fitting means at the bottom. In the embodiment illustrated as the fitting means at the bottom, fitting protrusions 13 and 2 are provided on the outer surface of the bottom 12 of the inner container 10 and the inner surface of the bottom 12 of the outer container 20, respectively, each having an annular shape and fitting into each other.
3 protrudes perpendicularly to the horizontal bottom surface, and in particular both fitting protrusions 13 and 23 are provided so as to be relatively firmly press-fitted like an interference fit by utilizing the elasticity of the material. In addition, there are various structures that can be fitted while maintaining a gap a between the inner and outer containers 10 and 20, such as arranging a plurality of relatively small-diameter protrusions that fit into each other on the inner and outer container bottoms 12 and 22. It is possible to implement it by

Note that the shape of the container is not limited to one having a substantially hollow hemispherical cross section as shown in the figure, but may also be a cup-shaped container with tapered sides whose diameter increases toward the top, a square container, or any other shape. good. Further, the inner container 10 is usually made opaque and colored in an arbitrary color, but it is also possible to make it transparent or translucent.

The present invention is constructed as described above, and is a double-structured container formed by combining an inner container 10 and an outer container 20 so as to maintain a sealed air gap a between them. Utilizing the insulation properties of
It can be suitably used as a container for cold and hot foods such as fruit containers and salad bowls, or as a container for heated foods.

In particular, as a combination structure of the inner and outer containers 10 and 20, a fitting flange 15 is provided extending outward from the open end 14 of the inner container 10, and the fitting flange 15 is connected to the outer container 20.
Since the upper surface is flush with the inner periphery of the container, the inner and outer containers 10 and 20 can be firmly connected with good shape retention without the need for adhesive means, and a sealed state can be maintained between the inner and outer containers. Each space can be kept separate. Moreover, the upper surface and outer periphery of the opening end of the container have no unnecessary protruding parts. Therefore, it can be used as a salad bowl, fruit container, etc.
Good appearance, easy to handle, and easy to clean.

In the present invention, the outer container 20 is formed of a transparent or translucent synthetic resin that can be seen through, and on the outer surface of the side 11 of the inner container 10 within the sealed gap a between the inner and outer containers 10 and 20.
Since a temperature indicating means 30 made of a tape containing a temperature indicating pigment or a temperature indicating paint whose color changes depending on temperature changes is attached, it is possible to display the temperature inside the container. For example, when cold food such as fruit or salad is stored in a container, the temperature of the stored food transmitted through the inner container 10 can be sensed by the display means 30 and displayed by a change in color, and this can also be displayed in the outer container. 20 can be seen through from the outside, and the temperature of the stored food can be easily checked. When the temperature detected by this method rises too much, it is easy to keep the cold food at an appropriate temperature by adding ice, etc., which is convenient. Furthermore, even when the stored food is heated food, it becomes easier to select the appropriate temperature for eating it.

In particular, since the temperature indicating means 10 is provided in the gap a between the inner and outer containers 10 and 20 which are kept in a sealed state, the temperature indicating means 30 is protected by the inner and outer containers 10 and 20 without being exposed to the outside. It is almost unaffected by external temperature, etc., and can accurately display the internal temperature. In addition, there is no risk of unintentional drawings entering the void when cleaning the container, or damage or peeling due to contact with other objects or cleaning the container. It can be used repeatedly over a long period of time.

Furthermore, since the temperature indicating means 30 is attached to the outer surface of the inner container 10 within the gap a by utilizing the gap a between the inner and outer containers 10 and 20 in the double container as described above, the temperature indicating means 30 itself is It is made of tape containing a pigment or temperature-indicating paint, and can be installed in a fairly narrow space, so it does not interfere with the fitting of the inner and outer containers 10 and 20, making the combination easy and inexpensive to manufacture. It also has a good appearance.

Therefore, the present invention can be particularly suitably used as a food storage container for fruit containers, salad bowls, etc., which has a double wall structure, has good heat insulation properties, and can display the internal temperature.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a perspective view, Fig. 2 is a plan view, and Fig. 3 is a front view.
FIG. 4 is an enlarged sectional view of a part of the front view. 10... Inner container, 20... Outer container, 11, 21
... Side part, 12, 22 ... Bottom part, 13, 23 ...
Fitting protrusion, 14, 24... Opening end, 15... Fitting flange edge, 30... Temperature indicating means, a... Gap.

Claims (1)

[Scope of utility model registration request] A double-structured container with an upward opening, consisting of an inner container made of a synthetic resin molded body and an outer container made of a transparent or semi-transparent synthetic resin molded body, with a space between them. And,
A fitting flange is provided at the open end of the inner container and extends outward from the upper edge of the side, and this fitting flange is tightly fitted onto the inner periphery of the open end of the outer container with the top surface flush with the inner periphery of the outer container. A sealed gap is maintained between the inner and outer containers, and a temperature indicating means made of tape or temperature indicating paint impregnated with a thermostat pigment that changes color due to temperature changes is mounted on the outer side surface of the inner container within this gap. A double container characterized by being attached.