JPH0720059Y2 - Insulation case - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a heat insulating case useful for packaging foodstuffs that are troubled when heated by the outside air or commodities that should not be cooled.

[Conventional technology]

Conventionally, foods and the like that have to be kept cold are stored in frozen showcases and the like at stores, and when this is sold, it may be put in a foam synthetic resin container, or depending on the item, or It was placed in a slightly larger size paper box and was kept cold by packing dry ice pieces into the gap between the side walls.

On the other hand, foamed synthetic resin containers were often used for products that must be cooled.

[Problems to be solved by the device]

However, the foamed synthetic resin container has a problem that the surface is uneven and is not dirty, printing cannot be easily performed, and the container is fragile in strength and the corner is easily damaged.

The present invention has been made in view of the above problems in the related art, and an object thereof is to provide a heat insulating case that utilizes the heat insulating effect of a foam synthetic resin container and is easy to print on the surface. It is what

[Means for Solving the Problems]

In order to achieve the above object, a heat insulating case in the present invention comprises a tray type foam synthetic resin heat insulating material in which side walls are connected to a peripheral edge of a bottom wall, and a cardboard outer casing covering the heat insulating material. Each of the lid boxes is formed, and the lower surface of the side wall of the lid box is abutted against the upper surface of the side wall of the body box to seal the body box and the side wall of the heat insulating material forming the lid box. Forming recesses and protrusions that fit together, the outer envelope extends on four sides of a flat plate and sequentially connects an outer plate, a top plate, and an inner plate, and on the top plate, the recesses and protrusions of the heat insulating material are formed. Is formed by forming a through hole corresponding to.

[Action]

According to this invention, the foamed synthetic resin heat insulating material is completely covered with one die-cut blank for reinforcement, and printing is possible. Only one mold is required.

Since the recesses and protrusions formed on the heat insulating material covered by the cardboard outer casing are directly fitted through the through holes of the outer casing,
The body box and lid box fit together without rattling.

〔Example〕

An embodiment of the present invention will be described with reference to the accompanying drawings. This heat insulating case covers a tray-shaped foamed synthetic resin heat insulating material 4 in which two pairs of side walls 2 and side walls 3 facing each other are formed on a peripheral edge of a relatively thick rectangular bottom wall 1, and the heat insulating material 4. A box A is formed from a cardboard outer casing 5 such as a corrugated cardboard and a lid box B of the same shape is formed in the same manner. The bottom surfaces of the shaped side walls are butted (see FIG. 3) and sealed.

The heat insulating material 4 is provided with a square recess 6 at the center of the upper surface of one of the pair of side walls 3 and a recess 6 at the center of the upper surface of the other side wall 3.
Is provided with a square protrusion 7. The concave portion 6 and the convex portion 7 are also provided on the lid box B in the same manner, and when the convex portions are engaged with each other, the body box A and the lid box B fit together without rattling. (See FIG. 3).

The outer envelope body 5 is formed from the blank blank X in the development view shown in FIG. The blank blank X is a bottom plate in the body box and a top plate in the lid box. The outer plate 10, the top plate 11, and the inner plate 12 are formed through fold lines 9 at one of opposite edges of the rectangular flat plate 8.
Are successively arranged, and the fold line is formed on the other opposite edge of the flat plate 8.
An outer plate 14, a top plate 15, and an inner plate 16 are sequentially connected via 13, an outer folding piece 17 is connected to both end edges of the outer plate 14, and an inner folding piece 18 is connected to both end edges of the inner plate 16. It is a thing.

The inner plate 16 is provided with cut lines 19 which serve as notches (see FIG. 1) at the free ends at the time of assembly, and the other inner plate 12 has free ends and small corners which are fitted into the notches. A stop piece 20 is projected.

Further, in the central portion of the top plate 15, there is provided a rectangular through hole 21 corresponding to the concave portion 6 or the convex portion 7 of the side wall 3 of the heat insulating material.

When covering the heat insulating material 4 with the above-mentioned blank blank X, the heat insulating material 4 is placed on the flat plate 8, and the outer side plate 14, the top plate 15 and the inner side plate 16 are first bent to wrap the side wall 3 of the heat insulating material. Side wall 2
The outer folding piece 17 is folded on the outer side, and the inner folding piece 18 is folded on the inner side, and then the outer side plate 10, the top plate 11 and the inner side plate 12 are bent to form the side wall 2 of the heat insulating material and both folding pieces 17, 18. Along with the wrapping, the locking piece 20 is pushed into the notch formed by the cut line 19 with a fingertip and locked. At this time, a rectangular intermediate plate 22 made of cardboard or the like can be fitted in advance on the bottom wall 1 of the heat insulating material 4,
The middle plate is in a state of being prevented from being pushed out by the lower end of each inner plate.

The symmetrical recesses and protrusions on the upper surface of the side wall 3 of the heat insulating material 4 may have other shapes, and the outer folding piece 17 and the inner folding piece 18 of the outer envelope body 5 may be omitted.

When the heat insulating case is used, for example, foodstuffs taken out from the frozen showcase are stored in the body box A, and the lid box B is butt-sealed so that the concave portion 6 and the convex portion 7 face each other. Done. The body box and the lid box are closely meshed with each other at the concave portion and the convex portion, and there is no rattling.

Further, when a synthetic resin tape or the like is attached to the abutting portions on the side surfaces of the body box A and the lid box B, the heat insulating effect is further enhanced.

[Effect of device]

Since the present invention is configured as described above, it has the following effects.

The foamed synthetic resin insulation is covered with a cardboard outer wrapping, which gives it a good appearance and is easy to print, effective for sales promotion, and the fragile corners of the insulation are reinforced for safe handling. is there. Further, since the cardboard outer casing is used, it has hygroscopicity and can prevent the harmful effects of dew condensation.

Since the recesses and protrusions formed on the heat insulating material covered by the cardboard outer casing are directly fitted through the through holes of the outer casing,
The effect is that the body box and lid box fit together without rattling.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention, FIG. 2 is a developed view of an outer package of the same, and FIG. 3 is a longitudinal sectional view showing an assembled state of the same. A ... body box, B ... lid box, X ... blank, 1 ... bottom wall, 2 ... 3 side wall, 4 ... heat insulating material, 5 ... outer package, 8
...... Flat plate, 10, 14 …… Outside plate, 11, 15 …… Top plate, 12, 16
…… Inner plate, 22 …… Middle plate.

Claims (1)

[Scope of utility model registration request] 1. A body box and a lid box are formed from a tray-shaped foam synthetic resin heat insulating material having side walls connected to the periphery of a bottom wall, and a cardboard outer casing covering the heat insulating material. The bottom surface of the side wall of the lid box is abutted against the upper surface of the side wall and sealed, and a recess and a protrusion are formed on the abutting surface of the side wall of the heat insulating material that forms the body box and the lid box. The outer envelope is
A heat insulating case formed by sequentially connecting an outer plate, a top plate and an inner plate extending to four sides of a flat plate, and forming through holes corresponding to the recesses and the protrusions of the heat insulating material on the top plate.