JPS6030216Y2 - cold container - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a cold storage container, and is intended to provide a cold storage container that has excellent heat insulation and cold storage effects, and also has excellent water retention performance for condensed water generated inside the container.

BACKGROUND ART Sealed containers made of expanded polystyrene have conventionally been used as containers for storing frozen desserts such as ice cream and decorated ice cream to keep them cold when they are taken home after sales, and are popular as they are lightweight and inexpensive.

By the way, if frozen desserts etc. are stored in the container and left for a long time or if the lid is opened and closed frequently, condensation will form on the inner walls of the container and the surface of the frozen dessert, and this condensed water will accumulate and wet the frozen dessert, resulting in poor quality. There were problems with condensation water leaking out of the container and contaminating the surrounding area.

In addition, if the frozen dessert etc. contains a lot of water in advance,
The above-mentioned problems further occur due to the moisture content.

In addition, when using a single material such as expanded polystyrene, it is necessary to use a fairly hard material in order to give the container sufficient rigidity and strength, which causes problems such as poor contact with the stored items and poor cushioning properties. .

Furthermore, in order to improve the cold retention and cushioning properties, it was necessary to increase the thickness of the container wall, which led to concerns that the storage efficiency of stored items would deteriorate and the cost would increase.

Therefore, this invention eliminates the drawbacks of the conventional cold storage container mentioned above and provides a container that has excellent water retention performance such as dew condensation water and cold storage performance. The container is made of a resin foam and has a sealable storage space, and is characterized by having a relatively flexible foam sheet of a synthetic resin capable of absorbing water and having a large number of cuts formed on the inner surface of the container.

Next, embodiments of this invention will be illustrated below with reference to the drawings.

In this example, a carton box-like container is constructed by folding and assembling pre-cut and unfolded sheets to form a rectangular parallelepiped container, and a lid connected to the top can be freely sealed. It shows.

That is, the side pieces 20, 20, . 40 to each other, or insert the folded pieces 41.4 into the engagement notches 21 of the side pieces 20.
1, the rectangular parallelepiped container is assembled and fixed, and the side piece 20 is assembled with the tongue piece 31 at the tip of the lid piece 30.
(
(See Figures 1 and 2).

The entire container is made of a foamed sheet 1 made of a relatively hard synthetic resin such as a foamed polyethylene sheet, and a relatively flexible material capable of absorbing water, with a number of unexpanded cuts 2 of a certain length formed in advance in a staggered manner. It is formed of a laminated sheet in which a foamed sheet 2 made of a synthetic resin such as polyethylene is laminated, and the foamed sheet 1 has paper 3 laminated on both sides (see FIG. 3).

Therefore, in the assembled container, a flexible cut sheet 2 exists on the inner surface of the container facing the internal storage space, and comes into contact with stored items such as frozen desserts.

As the hard foam sheet 1 constituting the container, it is necessary to use a relatively hard material in order to increase the rigidity and strength of the entire container and maintain its shape.Although it is possible to use a foam sheet alone, synthetic resin It is preferable to use a laminated sheet of non-foamed film or paper 3 in terms of strength and appearance, and it is even more preferable to print or the like on the outer surface of the hard foamed sheet 1.

Next, as the cut sheet 2, it is preferable to use a non-crosslinked polyethylene sheet with a high expansion ratio to form the cuts and cut the closed cells to form a perforated wall surface, which is flexible and has water absorption performance. be.

As the cuts 2', a large number of relatively short linear cuts 2' are arranged in a staggered manner in the same direction (the fourth
(see figure).

In addition, the cut 2' may be formed into an arc shape or other curved shape,
The cuts 2' may be arranged not only in the same direction, but also in a mixture of cuts 2' in both directions of the slave machine.

Next, as for the overall structure of the container, in addition to folding and assembling a single unfolded sheet, combining multiple sheet pieces together, or combining sheet materials formed into a three-dimensional shape by vacuum forming etc. etc., can be freely implemented using known structures or shapes used in various conventional containers.

According to the insulated container of this invention constructed as described above,
By attaching a relatively soft foam sheet 2 that can absorb sound water to the inner surface of the foam 1, it can absorb moisture from frozen desserts etc. stored in the container and condensation water generated inside the container.
Since water can be absorbed and retained within the cuts 2 formed in the cut sheet 2, the problem of the water leaking out of the container and degrading the quality of frozen desserts, etc. can be solved.

In addition, when using items such as vegetables that require constant moisture replenishment as storage items, if the cut sheet 2 is soaked with moisture in advance, the moisture content will be gradually replenished to the vegetables etc. during transportation, etc., and the freshness will be maintained. can exhibit excellent effects.

Furthermore, due to the flexibility of the material itself and the deformation of the cuts 2', the cut sheet 2 has excellent cushioning and protection properties when it comes into contact with stored items, and in addition to the insulation properties of the material itself, it retains air within the cuts 2'. By doing so, the insulation properties are further improved, which has the effect of improving the buffering performance and cold storage performance of the entire container.

Therefore, even if the thickness of the foam 1 side is made thinner or a particularly hard foam 1 is used, the container as a whole can exhibit sufficient cushioning and cold retention properties, improving storage efficiency, saving materials, and It is also possible to reduce the weight.

Furthermore, since the cut sheet 2 increases friction due to the formation of the cuts 2', it also has a non-slip effect to prevent stored items from moving or shifting within the container, providing a cold storage container with excellent practical value. It is possible.

[Brief explanation of drawings]

The figures illustrate the embodiment of this invention, and Fig. 1 is a perspective view of the assembled state, Fig. 2 is a plan view of the unfolded state, and Fig. 3 is a perspective view of the assembled state.
The figure is an enlarged sectional view of the main part, and FIG. 4 is an enlarged plan view of the cut sheet. 1... Foam, 2... Cut sheet,
2'...cut, 3...paper.

Claims (1)

[Claims for Utility Model Registration] 1. A container made of relatively hard synthetic resin foam and having a sealable storage space, which is made of a relatively flexible synthetic resin foam sheet with many cuts and capable of absorbing water. A cold insulating container characterized by having a container attached to the inner surface. 2. The cold storage container according to claim 1, wherein the container is constructed by folding and assembling a laminated sheet in which a foamed sheet of relatively hard synthetic resin and a cut sheet are laminated in advance. 3. The cold storage container according to claim 1 of the above-mentioned utility model registration claim, in which the numerous cuts are staggered without widening.