JPH02287074A - Cold-heat holding case - Google Patents

Abstract

PURPOSE:To assure the holding of cold-heat of frozen materials when the above case containing said materials therein is transferred from a freezing storeroom by unitarily mounting a cold-heat storage material for cooling the interior of a heat insulating container to said container that heat-insulates the interior and exterior thereof. CONSTITUTION:A heat insulating container 2 is constituted of a heat insulating material 21 and sheets 22, 23, 24 formed into a three-layer. The heat insulating material 21 is made of resin low in heat conductivity such as urethane foam and heat-insulates the interior and exterior of a cold-keep case 1 so as to maintain the temperature of a cold storage material 3 to a predetermined level. The sheets 22, 23, 24 are made of resin, and the cold storage material 3 in the form of a liquid is interposed between the sheets 22, 23 while its melting point is made adjustable. The liquid cold storage material 3 is made in the form of a solid by freezing and positioned inside the cold- keep case 1 over the heat insulating material 21 which is inserted between the sheets 23, 24. Accordingly, materials 4 to be cooled that are put into the cold-keep case 1 will be kept cooled without being exposed to the external air even when the cold- keep case 1 is taken out of a freezing storeroom to be transferred, and assorting work of the materials 4 to be cooled and the storage of the same in the cold-keep case 1 become easier.

Description

Detailed Description of the Invention [Field of Application in Industry-1] The present invention relates to a cooling box for keeping objects to be cooled at a constant temperature.

1. Conventional technology] In recent years, with the spread of convenience stores, the mainstream method for constant-temperature transportation of food from distribution centers to retail stores is to combine room-temperature foods, refrigerated foods, frozen foods, etc. into one cold storage vehicle. It has become. In addition.

In such consolidated transportation, food is sorted at each retail store at the distribution center into half-dozen, one-dozen, or two-dozen packages, taking into account the work and loading efficiency of food into the freezer truck. Opportunities to use two or more types of dedicated cases are increasing.

[Problem M to be solved by the invention] However, in constant-temperature transportation of food, there are There were cases where food could not be maintained at a constant temperature due to direct contact with outside air.

For this reason, conventionally, in constant-temperature transportation in which foods such as refrigerated foods or frozen foods are transported while being kept at a constant temperature, as described in Japanese Patent Laid-Open No. 198976, a cold storage material is used in an insulated container. Both food and food are placed in the container, and the food is kept at a constant temperature before being transported.

However, there is a problem in that the food and the cold storage material must be placed in an insulated container, which complicates the sorting of the food at the distribution center and the work of storing it in the insulated container.

The present invention allows the sorting work and the storage work in the insulated container to be carried out by JF.
'- Our aim is always to provide an easy-to-use cold storage box.

[Means for Solving the Problems] The cold box of the present invention includes a heat insulating container 2 that insulates the inside and the outside;
and a cold storage shrine that is integrally provided with the heat insulating container and cools the inside of the heat insulating container.

[(t 1., T'l 11) The cold box of the present invention is manufactured by the following process [
fl]1'-ru.

By using a cold box that integrates a heat insulating container and a cold storage material, even if the cold box comes into contact with the outside air, the heat insulating container will insulate the inside and outside, and the cooling box will keep the inside of the heat insulating container warm. Since it can be cooled, the objects to be cooled stored in the cold box can be kept at a low temperature and constant temperature for a long period of time.

In addition, by simply storing a predetermined number of objects to be cooled in a cold storage box without requiring a separate cold storage material, for example, different types or different numbers of objects to be cooled can be quickly transported. This makes it easier to sort the cooled items and store them in cold boxes.

[Effects of the Invention] The cold box of the present invention has the same effects as the above-mentioned technical means and functions.

The object to be cooled can be kept at low temperature and constant temperature for a long time.
Sorting the objects to be cooled and storing them in cold storage boxes can be done very easily.

"Example] DESCRIPTION OF THE PREFERRED EMBODIMENTS A cold storage box of the present invention will be explained based on an embodiment shown in the drawings.

1 to 6 show a first embodiment of the invention. 1st
The figure shows a cold storage box, and figures 2 and 3 [4] show cold storage material sheets.

A cold box 1 stores objects to be cooled 4 such as frozen foods, dairy products, fish, meat, etc.
It is used for constant-temperature transportation, and is integrally formed with a heat-insulating container 2 that insulates the inside and the outside, and a cold storage material 3 that cools the inside of the heat-insulating container 2. This cold storage box 1 is formed by bending a flat-shaped cold storage material sheet h10 shown in FIG. 2 in a predetermined direction at each bending portion 10a to 10e.

The cold box 1 has a cubic shape, and includes a lid plate part 11 and a bottom plate part 1.
2 and the plurality of side plate parts 13-16.

A drain hole 12a is formed in the bottom plate portion 12 to facilitate drainage of drain water. Therefore, the object to be cooled 4 is prevented from getting wet due to moisture due to the drain hole 12a of the bottom plate portion 12.

One of the fasteners 17 that adheres the lid plate part 11 and the side plate part 13.14 to the side plate part 15.1G is adhered at a predetermined location on the inner surface of the lid plate part 11 and the side plate part 13.14. The side plate parts 15 and 16 have side plate parts? 5.16 to one of the fasteners 17 of the side plate part 13.14, the other fastener 18 is heat-sealed in a predetermined position towards the inside. Further, the other fastener 18 of the side plate portion 16 is adhered to one fastener 17 of the lid plate portion 11.

The heat insulating container 2 includes a heat insulating material 21 and three layers of thin plates 22 and 23.
．． It has 24.

The heat insulating material 21 is made of a resin with low thermal conductivity such as urethane foam, and insulates the inside and outside of the cold box 1.
This is to keep the temperature of the cold storage material 3 at a constant temperature.

The thin plates 22, 23, and 24 are made of resin or laminate and function as reinforcing plates to maintain the cubic shape. In addition, the thin plates 22, 23 are arranged at each bending portion 10 of the thin plates 22, 23 in order to prevent the cool storage material 3 that has been inserted inside from flowing out.
Thin plates 22 and 23 are bonded together with adhesive or the like at a to 10e and the outer periphery. Furthermore, the thin plate 24 prevents the surface of the heat insulating material 21 from sliding against the inner wall surface of the returnable box 5 and from being abraded when the returnable box 5 is put in and taken out of the cold storage box 1. Thin plate 23.2
4 is bonded to the heat insulating material 21 with an adhesive or the like.

The cold storage material 3 is manufactured from an inorganic or organic material,
It is placed between the thin plates 22 and 23 of the heat insulating container 2 to keep the object 4 to be cooled stored inside the cold box 1 cold. A low-viscosity liquid regenerator is used as the regenerator material 3, and the melting point is adjusted by increasing or decreasing the components, formulation, and amount of additives.

Here, in consideration of ease of use, it is considered that the color of the thin plates 22 and 24 of the cold box 1 is changed depending on the temperature range in which it is used. For example, 0°C is orange, 18°C
is green, etc. In addition, the thickness of the cold storage material sheet 10 may vary depending on the J and 2 degree zones used and the thickness of the C cold storage material 3. Taking this into consideration, approximately 3m111.about.20mm is appropriate.

The operation of the cold storage material sheet 10 of this embodiment will be explained with reference to FIGS. 1 to 6.

A liquid cold storage material is put into the thin plates 22.23, and the bent portions 10 of the two thin plates 22.23 are bent so that the liquid cold storage material does not flow out.
．． 1 to 1 oe and the outer periphery are pasted together using adhesive, etc.
Further, the heat insulating material 21 and the thin plate 24 are sequentially bonded to the thin plate 23 with an adhesive or the like ζ, and the cold storage box 1 is expanded to form a cold storage material sheet I.10. This cold storage material sea 1-
10 is folded and placed in a freezer 6 as shown in FIG. 4 to freeze the liquid cold storage material.

Next, as shown in FIG. ,
Each bent portion 10a-10e is bent in a predetermined direction. And -force's) "r fastener 17 and the other no fastener 18
Glue them to the side plate parts 13 and 14.
．． 16 and assemble the cold box 1.

A predetermined number of objects to be cooled "!f@4" are stored in this cold box 1, and as shown in FIG. Insert it so that it is facing downward.

At this time, even when different types of liquid-cooled objects 4 are sorted into a plurality of cold storage boxes 1, there is no need to store cold storage material or heat insulation 4A together with the objects 4 in the cold storage boxes 1. By performing the sorting operation, the objects can be quickly brought into a state ready for transport, so the sorting of different types of objects to be cooled 4 becomes very easy.

In addition, by performing the storage work without storing a cold storage material or a heat insulating material together with the object to be cooled 4 in the cold insulation Wi1,
The objects 4 to be cooled can be quickly brought into a transportable state. Therefore, sorting the objects 4 to be cooled and storing them in the cold box 1 becomes very easy.

Note that by placing the cold box 1 in a returnable box 5 of a predetermined shape and loading it into a cold storage vehicle such as a refrigerated truck or a refrigerated truck, the returnable box 5 can be loaded efficiently. 1 loading efficiency will also be improved.

Furthermore, the objects 4 to be cooled, such as frozen foods, dairy products, fish, and meat, are placed inside the cold box 1. 1- By doing so, the object to be cooled 4
is the delivery sensor - from the freezer to the freezer truck, and then to the freezer 1F.
During the process of being displayed in a showcase at a retail store, the cold box 1 was exposed to the outside air, and the object to be cooled 4 was not exposed to the outside air, so it was kept at a low and constant temperature. A plurality of objects 4 to be cooled can be transported in this state.

The inside of the cold storage W11 is kept at a predetermined low temperature at the time of delivery, so for example, if the object to be cooled 4 is ice cream, the island ζ is also loaded from the freezer of the delivery center to the refrigerated truck. It is possible to reliably prevent the release of melt during the process of storing the product or displaying it from the refrigerated truck to the case in the retail store.

7 and 8 show a cold storage material sheet 100 according to a second embodiment of the present invention.

(Same as the first embodiment - the same numbers are used for functional objects) The cold storage material sheet 100 of this embodiment has a circular cover plate portion 111, a circular cover plate portion 111, and a circular It has a bottom plate part 112 and a side plate part 113.

This side plate portion 113 covers one fastener 114 and the other fastener 115 bonded to the one fastener 114. Also, 01! ! The plate portion 113 prevents the object 4 to be cooled from getting wet with moisture. It has a drain hole 116.

Figures 9, 1 and 10 show a cold storage material sheet with a freshness preservation sheet according to the third embodiment of the present invention. -200 is shown.

(The same 4!1 functions as in the first embodiment have the same numbers.) The cold storage t-shirts 1 to 200 with freshness preservation sheets of this embodiment are as follows:
Freshness maintaining sheet 201 instead of thin plate 22 in the first embodiment
It is pasted. The combination of the freshness preservation sheet 201 and the cold storage material 3 allows constant temperature transportation without degrading the quality of the food.

The material of the freshness preservation sheet 201 is polyethylene mixed with Oya stone and zeolite, which is effective in adsorbing ethylene.
, r 11, or 11 It is good to mix silica-based pores with the resin-applied seal l- and use a T4 material that is effective for chanting.

No. 1114 is the cold storage material sheet 3 of the first and first embodiment of the present invention.
Does not indicate 00.

(The same functional objects as in the first embodiment are given the same numbers.) The cold storage material sheet 1-300 of this embodiment becomes a straight horn-shaped cold storage box when assembled. This cold storage material 3-1-300 is not attached to all the top plate parts 301, the bottom plate part 302, and the plurality of side plate parts 303 to 306 as in the first embodiment, but is For example, only the lid plate 301 and the bottom plate 302 of the heat insulating container 2 are equipped with the cold storage material 3.

FIG. 12 shows a cold storage material sheet 400 with a moisture adsorption sheet according to a fifth embodiment of the present invention.

(Same as the first embodiment - Functional objects have the same numbers ↓ J to A-1) The cold storage material sheet 400 with a moisture adsorption sheet of this embodiment becomes a rectangular parallelepiped-shaped cold box when assembled, and the lid plate part 401, It has a bottom plate part 402 and a plurality of side plate parts 403 to 406. Instead of the drain hole as in the first embodiment, the bottom plate portion 402 uses a moisture-absorbing sheet 407 attached by a connection method such as foot-sealing method 411 or the like.

[Other Examples] In this example, the heat insulating container and the cold storage material are bonded together to form an integral structure, but the cold storage material may be enclosed in the heat insulating material of the heat insulating container.

In this embodiment, a returnable box containing one cold box is used, but a returnable box containing a plurality of five cold boxes may be used.

In addition, when a hard J] material is used for the thin plate of the cold storage material sheet, a returnable box is not used and the shape of the sheet does not deteriorate.

In this example, the shape of the cold box was a cube, a rectangular parallelepiped, or a cylinder, but the shape of the cold box was a polygonal prism,
It may have various shapes such as a conical shape and a polygonal pyramid shape.

In this practical example, the shape of the cold storage material sheet is the developed shape of a simple cold storage box, but the shape of the cold storage material sheet may also be the developed shape of a cold storage box having a glue portion.

Further, as the cold storage material sheet, a cold storage material sheet with a grid may be used so that cans, bottles, etc. can be placed in the cold storage box. Further, the thin plate placed outside the heat insulating material (!t!i) may not be provided.

In this example, fasteners were used as a method of connecting the lid plate, the bottom plate, and the plurality of side plates of the cold storage material sheets.
As a part of the bonding method, gluing, adhesive bonding, etc. may be used, and temperatures at °C may also be used.

[Brief explanation of drawings]

1 to 6 show a first embodiment of the invention. 1st
Figure 2 is a perspective view showing the cold storage box, Figure 2 is a plan view showing the cold storage material sheet (leap, No. 31A is a sectional view showing the cold storage material sheet, Figure 4 is a perspective view showing the cold storage material sheet freezer, Figure 5 is a perspective view showing the cold storage material sheet, The figure is a perspective view showing a state in which a cold insulating box is placed in a returnable box, and FIG. 6 is a sectional view showing a state in which a cold insulating box containing broken refrigerant is placed in a returnable box. A second example is shown.Seventh
The figure is a plan view without showing the cold storage material sheet, and 81''A is a cross section 13 showing the cold storage material sheet. Figures 9 and 10 show a third embodiment of the present invention. Cold storage with freshness preservation sheets (a perspective view showing four sheets, FIG. 10 is a sectional view showing a cold storage material sheet with freshness preservation sheets. FIG. 11 shows the fourth embodiment of the present invention). Fig. 12 is a perspective view showing a cooling material sheet I in which a cold storage material is provided only in the lid plate portion and the bottom plate portion. Fig. 12 shows a fifth embodiment of the present invention. It is a ♀゛) perspective view showing a cold storage material sheet with attached. In the figure 1...Cold storage box 2...Insulating container 3...Cold storage material
4...Object to be cooled 21...Insulating material

Claims (1)

[Claims] 1) (a) A heat-insulating container that insulates the inside and outside;
) A cold storage box that is integrally provided with the heat insulating container and includes a cold storage material that cools the inside of the heat insulating container.