JPH0446572Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heat-insulating portable metal can container containing drinks, carbonated drinks, water, alcohol, beer, soy sauce, etc.

[Prior art and its problems]

Traditionally, when taking a metal can containing drinking water with you on a drive or hike, you would carry ice or a cold storage agent and the cold metal can inside a cooler box made of expanded polystyrene molding.

However, these cooler boxes are usually square and large, and have the disadvantage that the metal cans roll around inside the box while being carried.

A container body made of expanded polystyrene molded in a mold and having a cylindrical storage part for storing one beer can, as a cold storage container for metal cans for a small number of people or for personal use;
A portable beer can container has been proposed that consists of three members: a lid and an injection-molded resin handle that houses the container body (Utility Model Application No. 153873/1983).

This portable beer can container is convenient for hiking, but compared to beer cans, the expanded polystyrene of the container body is thicker and bulkier, and the handle and container body are located in the radial extension of the container, making it unnecessary to store them. It has a volume. Furthermore, there are three container members, which makes handling difficult.

If there were no handle, only two members would be required, but the printed polystyrene foam is only a single color gravure printing, and the appearance is poor.

[Specific measures to solve the problem]

The present invention provides a heat-retaining portable metal cylindrical can that is made of one member and has good heat retention and good appearance, and can be stacked and stored before use. Specifically, this container is made of a laminated sheet in which a foamed thermoplastic resin sheet and an aluminum vapor-deposited thermoplastic film are bonded together, and is obtained by molding this laminated sheet. , has a substantially symmetrical shape with a hinge line in the center, and this substantially symmetrically formed laminated sheet has at least a plurality of semi-cylindrical metal cylindrical can storage recesses and a notch for a handle. A heat-retaining portable metal cylindrical can for drinking water, etc., characterized in that when the container is folded in half via the hinge line to form a portable container, the outside of the container is an aluminum vapor-deposited thermoplastic resin film layer. It provides a container.

〔Example〕

Hereinafter, the present invention will be explained in detail using the drawings.
In Fig. 1, 1 is a heat-retaining portable container, 2 is a hinge part provided at the center of the sheet, and 3' is a laminated sheet with a structure that is approximately symmetrical about the hinge 2. Each laminated sheet 3, 3' has a Semi-cylindrical storage recesses 4a, 4b, 4c, 4'a, for storing cylindrical metal cans;
4'b, 4'c and handles 5, 5' are provided with notches 6, 6' for inserting fingers therein.

The compressed parts 7, 7,..., 7', 7'... of the laminated sheet provided at the edges in the vertical direction with respect to the hinge 2 are as follows:
The wall thickness is thinner than that of the original laminated sheet portion 8. These compressed parts 7, 7, . . . , 7', 7' . . . indicate locations where the container 1 is fixed with adhesive tape 9, staples, clips, etc. after storing the metal cylindrical can. The compressed portion is formed by differential pressure molding of the laminated sheet to form the storage recess, and then compressed portions 7, 7', . . . when forming the hinge. Note that this compression portion may not be provided depending on the locking method.
The notch 6 is formed by trimming after differential pressure molding.

Examples of the differential pressure forming method include vacuum forming, pressure forming, vacuum/pressure combined forming, and matte die forming. If necessary, plug-assisted molding may be performed.

However, the material for the laminated sheet is shown in Figure 2a.
As shown in the figure, an aluminum vapor-deposited thermoplastic resin film 8a and a foamed thermoplastic resin sheet 8b are bonded together, and the aluminum vapor-deposited thermoplastic resin film side forms the outer layer of the container, which improves the appearance and gloss. An excellent container can be obtained. This aluminum vapor deposition layer may be provided between the thermoplastic resin film and the foamed thermoplastic resin sheet, or may be formed in the order of the aluminum vapor deposition layer, the film layer, and the foamed sheet layer so as to form the outermost layer of the container. Preferably, the former improves the gloss of the container by differential pressure molding.

FIG. 4 is a partially cutaway sectional view showing a state in which beer cans are stored.

Furthermore, as shown in FIG. 2b, an aluminum vapor-deposited film layer 8 is provided on the foam sheet layer side of the inner layer of the container.
A′ may be provided to improve the cool feeling and heat insulation performance of the inner and outer surfaces of the container.

As another embodiment, an aluminum vapor-deposited film 8
By further providing a primer layer containing a dye such as wine red, cobalt blue, or yellow on the surface of a, the aluminum metallic luster can be changed to a metallic luster such as wine red metallic luster or cobalt blue gold. Furthermore, in order to improve the product value, a product name, company name, pattern, etc. may be printed on the outermost layer.

As the foamed resin sheet, an extruded foamed sheet of thermoplastic resin such as polystyrene, polypropylene, high density polyethylene, linear low density polyethylene, etc. is used. The wall thickness of this foam sheet is 0.5 to 5 mm.
degree, and the density is 0.01-0.1 g/ ^cm3 .

Thermoplastic resin films include polypropylene, polystyrene, polyethylene terephthalate, polyamide, ethylene/vinyl acetate copolymer, low-density polyethylene, and metal salts of ethylene/methacrylic acid copolymer (Na ⁺ , K ⁺ , Zn ⁺⁺ , Al ⁺⁺⁺
etc.) is used, and the wall thickness is 1~
It is about 100 microns.

The laminated sheet is most economically obtained by melt coextrusion followed by aluminum vapor deposition on the film side. Of course, it can also be obtained by adhesively laminating an aluminum vapor-deposited film on the surface of a foam sheet using an adhesive.

Because of its flexibility, the film is effective in preventing damage to the foamed resin sheet from impact.

As another aspect of the heat insulating portable container, as shown in FIG.
It may be connected to

Furthermore, the container is sealed by providing fitting pieces 11, 11', . . . and fitting grooves 12, 12', . . . on the edge of the container as shown in FIG. 3 without using adhesive tape or staples. , this may be fitted. Further, as in the locking structure shown in FIG. 5, one sheet 8 may be provided with a hole 13, and the other sheet 8' may be provided with a convex portion 14 for locking, or as shown in FIG. Alternatively, holes may be provided in the sheets 8, 8' and these holes may be secured with plastic clips 15.

〔effect〕

The heat-retaining portable container of the present invention has an excellent heat insulating effect due to the combination of the aluminum vapor deposited layer and the foamed resin sheet layer, and the wall thickness can be reduced.

In addition, since the outer layer is an aluminum vapor-deposited resin film, it has excellent metallic luster and smoothness. Furthermore,
This resin film can prevent the foamed resin sheet from being destroyed.

Furthermore, the heat-insulating portable containers can be stacked and stored before use, which has the advantage of making the storage space more compact.

[Brief explanation of the drawing]

Figures 1a and 3 are plan views of a portable thermal container showing an example of the present invention, Figure 1b is a sectional view taken along line A-A in Figure 1a, and Figures 2a and 2b are views of the container. A cross-sectional view of the laminated sheet of material, and FIG. 4 shows a partial cross-sectional view of the heat-insulating portable container when it is in use. 5 and 6 are partial sectional views showing another locking method.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. A heat-insulating portable container made of a laminated sheet in which a foamed thermoplastic resin sheet and an aluminum vapor-deposited thermoplastic resin film are integrally bonded together, and obtained by molding this laminated sheet. This container has a substantially symmetrical shape with a hinge line in the center, and this substantially symmetrically molded laminated sheet has a plurality of semi-cylindrical metal cylindrical can storage recesses and a handle. 2. A drinking water container characterized in that the container has at least a cutout portion, and when the container is folded in half through the hinge line to form a portable container, the outside of the container is an aluminum vapor-deposited thermoplastic resin film layer. Heat-retaining portable container made of metal cylindrical can. 2. The heat-insulating portable container according to claim 1, wherein the laminated sheet has a structure in which an aluminum vapor-deposited layer, a thermoplastic resin film layer, and a foamed thermoplastic resin sheet layer are laminated in this order.