JP3074149B2 - Cooler - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a regenerator used for keeping cold inside a shipping container.

[0002]

2. Description of the Related Art When delivering various kinds of drinking water to a home, drinking water cooled in a refrigerator in advance is transported in a heat insulating container filled with ice as a cooling body. However, especially in summer, the ice melts quickly and fills the cold storage container, so that the drinking water container gets wet and looks bad. To deal with this problem, we wiped the container of wet drinking water with a cloth, but this was cumbersome, and if a label with the product name was placed on the surface of the container, the label would come off. There was a problem. In addition, when water is filled in the cold storage container, microorganisms and fungi easily propagate, which is very unsanitary.

[0003] In order to solve the problem that the melted water is filled in the cold storage container, ice has been packed in a plastic bag, or dry ice has been used as a cooling body instead of ice. However, the work of packing ice in plastic bags is troublesome, and frequently the melted ice leaks into the cold storage container due to breakage of the plastic bag, and eventually the water in the cold storage container is filled with water. A sanitary situation could not be avoided. In addition, when dry ice is used instead of ice, the problem of filling the cooling container with water is solved, but it is impossible to recover vaporized gaseous dry ice, so it can be used repeatedly. Cost increased.

[0004] Some cold insulators intended to solve the problems of water leakage and repeated use as described above have been developed so far. For example, Jiko 45-27082
Japanese Patent Application Publication No. JP-A-2005-64139 discloses a cooling body in which a hydrogel formed by adding borax or boric acid to a polyvinyl alcohol aqueous solution is filled in a bag of plastic or the like, or a polyvinyl acetate obtained by dispersing polyvinyl acetate in a polyvinyl alcohol aqueous solution. JP-B-57-28505 discloses that a cold storage device in which a regenerator made of a hydrogel formed by adding borax or boric acid to an emulsion and filled into a plastic bag is disclosed in Japanese Patent Publication No. 57-28505. Storage material consisting of hydrogel obtained by adding a compound having a group,
No. 34 discloses a regenerator consisting of a gel obtained by dissolving a saturated carboxylic acid in a polyacrylic acid aqueous solution, neutralizing and crosslinking with sodium hydroxide and sodium aluminate, and then adding sodium hydrogen carbonate and inorganic salts. Have been. However, these cold insulators were plastically deformed at temperatures above and below the cold insulator temperature, and could not maintain a constant shape. In other words, the insulated body, which had an irregular shape at a temperature higher than the insulated temperature, is extremely difficult to use because if it is cooled at a temperature lower than the insulated temperature before use, it freezes in its inconstant shape. Had issues.

[0005] In addition, ice, dry ice, and the above-mentioned gel-like cold insulator cannot sort and store various kinds of drinking water in a cold insulator. That is, it is impossible to search for a target product from several kinds of drinking water in a short time, and there is also a problem that work efficiency is poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and is capable of separating and storing various kinds of drinking water in a cold storage container, which is sanitary and can be used repeatedly. The purpose is to obtain.

[0007]

According to a first aspect of the present invention, there is provided a cold insulator, wherein a plurality of cold accumulators are provided for use in a cold insulator. A regenerator comprising a plurality of regenerator packs, wherein the regenerator has a hard plate-shaped hollow container in which a regenerator is sealed in a hollow portion inside the inside of a cover sheet. The regenerators are connected to each other by joining the cover sheets on the front and back surfaces located on the side portions thereof in a bendable manner, or by joining the ends to form the end of the regenerator pack. Forming a cold storage pack,
The cold storage pack is housed in the cold storage container in a state of being erected in a direction perpendicular to the continuous direction, and forms a partition in the cold storage container. .

According to a second aspect of the present invention, there is provided the cold insulator according to the first aspect, wherein the cover sheet portion of the foldable portion of the first cold storage pack and the foldable portion of the second cold storage pack are provided. The first regenerative pack and the second regenerative pack are connected to each other by joining the cover sheet part of the first regenerative pack.

According to a third aspect of the present invention, there is provided the cold insulator according to the first aspect, wherein the first cold storage pack and the second cold storage pack each have a foldable portion between the cover sheet portions. A third regenerative pack having one or more regenerators is disposed in a direction perpendicular to the direction in which the regenerators of each regenerative pack are connected, and a cover sheet portion of a bendable portion of the first and second regenerative packs is provided. And the covering sheet portions at both ends of the third regenerative pack are joined in a bendable manner.

According to a fourth aspect of the present invention, there is provided a cold insulator according to the first aspect of the present invention, comprising: four dual cold storage packs each having two of the cold storage units; and four of the cold storage units. One four-stage cold storage pack, wherein the one four-stage cold storage pack is formed into an annular shape by joining the covering sheet portions at both ends thereof to each other. The covering sheet portion and the covering sheet portion of each of the bendable portions of the quadruple cold storage pack are respectively joined, and the four quadruple cold storage packs and the four two cold storage packs are joined together.
The continuous storage cold pack is connected to one.

According to a fifth aspect of the present invention, there is provided a cool body according to any one of the first to fourth aspects, wherein the regenerator has a property of not being plastically deformed at a temperature above and below a cool temperature. It is characterized by being.

According to a sixth aspect of the present invention, there is provided the cold insulator according to any one of the first to fourth aspects, wherein the hollow container is made of a water-resistant plastic cardboard.
Alternatively, it is formed by a blow molding method.

[0013] Further, the cold insulator according to claim 7 of the present invention is the cold insulator according to any one of claims 1 to 4, wherein the cool container is a synthetic resin container main body, and is fitted to the container main body. And a lid made of a synthetic resin to be combined.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1 Hereinafter, a cold insulator according to Embodiment 1 will be described with reference to the drawings. FIG. 1 is a diagram showing a state in which an example of the cool insulator according to the first embodiment is housed in a cool container. In the figure, 1 is a cold insulator, 2 is a cold storage body, 3 is a bendable part, 4 is a partition room, 5 is a cold insulator main body, 6 is a lid, and 7 is a cold insulator. FIG. 1 (a) shows that a cold insulator 1 composed of 12 cold storage bodies 2 is set in a cold storage container main body 5 so as to form nine partition rooms 4, and drinking water is divided into each partition room 4 by type. It shows a state of being sorted and stored. The cold insulator main body 5 containing the cold insulator 1 and the drinking water is transported with the lid 6 as shown in FIG. 1 (b). As described above, the cool container 7 composed of the cool container body 5 and the lid 6 is made of a non-foamable resin in which a foam resin is interposed as a heat insulating layer (Japanese Kosho Sho 5).
9-11098) or a synthetic resin foam or the like, the size of which is, for example, 340 × 163 × 280.
mm, 400 × 400 × 278 mm, 410 × 203 ×
278mm, 500x345x300mm, 435x2
There are various sizes such as 85 × 265 mm, 380 × 200 × 260 mm and the like. The products stored in the cold storage container 7 need not be limited to drinking water, but may be foods such as ice cream and yogurt that need to be kept cold.

The cold insulator 1 according to the first embodiment is composed of a plurality of cold accumulators 2 as described above. First, the cold accumulator 2 will be described. FIG. 2 is a view showing the appearance of the cool storage body, and FIG. 3 is a view showing a cross-sectional structure of the cool storage body. As described above, the regenerator 2 includes the regenerator 8, the plastic cardboard 9 for filling the regenerator 8, and the covering sheet 1 for enclosing the plastic cardboard 9 filled with the regenerator 8.
It consists of 0.

As the regenerator 8, it is preferable to use a purine-like elastic gel composed of a crosslinkable monomer of acrylamide or methacrylamide and having high elasticity at room temperature and high cooling efficiency. Since this purine-like elastic gel can be frozen without plastic deformation above and below the cold storage temperature compared to the conventional cold storage agent, the plastic cardboard 9 for fitting the given space and filling the elastic gel can be used. It is possible to reduce the size. Further, since the melting temperature of this elastic gel can be controlled in the range of -20 ° C to 0 ° C, it is possible to produce an elastic gel having a melting temperature that is optimal for proper temperature control of a product. Further, since this purine-like elastic gel is a substance safe for the human body, it is harmless even if it comes into direct contact with food. As long as the regenerator 8 can be filled in the plastic cardboard box 9, sodium benzoate is added as a preservative to a 4% aqueous solution of sodium carboxymethylcellulose so as to have a concentration of about 0.3%, as described above. It may be a conventional cold storage agent,
Although they may simply use water, they are inferior in cooling efficiency to the purine-like elastic gels described above.

The cross section of the plastic cardboard 9 has a honeycomb core structure as shown in FIG.
It is a hard plate made of polypropylene with a thickness of about 1.0 mm, has high strength and self-holding shape, and has a space in which air can flow. The size of the plastic cardboard 9 is set to be about 8 mm in thickness, the height is set to be substantially the same as the height of the cold storage container body 5, and the width is set to the width of the cold storage container body 5.
Is determined in consideration of the number of regenerators 2 connected in the width direction. The cold storage agent 8 is filled in the space through which the air flows inside the plastic cardboard 9 as described above, and the both ends of the plastic cardboard 9 are subjected to a heat treatment, whereby the cold storage agent 8 is heated.
Is enclosed inside. The cross-sectional shape need not be limited to the honeycomb core structure, but may be a shape using a corrugated core material or a saw-tooth shape. If the inside can be filled with the regenerator 8, instead of the plastic cardboard 9, for example, a plate formed so that the inside becomes hollow using the blow molding method disclosed in Japanese Utility Model Publication No. 3-51667. May be used. The hollow container manufactured by using the blow molding method also has a high strength and a shape self-holding property like the plastic cardboard cardboard 9, and the cold storage agent 8 is filled in the hollow portion inside.

When the plastic corrugated cardboard 9 as described above is used, even if a conventional regenerator or water which is plastically deformed before and after the cooling temperature is used as the regenerator 8, they are sealed in the plastic cardboard 9. As a result, the plate-like shape can always be maintained, and a state of freezing with an irregular shape is avoided. Also,
Any kind of regenerator 8 can be used as long as it can be sealed in the plastic cardboard 9.
The range of application for the cold storage agent 8 is expanded.

The covering sheet 10 contains a plastic cardboard 9 filled with a regenerator 8 and is made of a vinyl chloride resin sheet having a thickness of about 0.2 mm, a nonwoven fabric or a woven fabric. For example, when the plastic cardboard 9 is internally provided with a covering sheet 10 made of a vinyl chloride resin sheet, the plastic cardboard 9 is sandwiched between two vinyl chloride resin sheets, and the two end covering sheet parts are welded using a high frequency welding method. . Alternatively, in the case where the plastic cardboard 9 is provided with the covering sheet 10 made of a nonwoven fabric or a woven fabric, a bag-shaped nonwoven fabric or a woven fabric may be made and the plastic cardboard 9 may be provided therein. The binding may be performed using a method. For example, if a fastener or the like is used in the opening of the bag, the plastic cardboard 9 can be freely taken out.

A regenerator 1 is formed by connecting a plurality of regenerators 2 having the above-described structure in a horizontally long manner to form a regenerative pack, and combining and connecting a plurality of regenerative packs. Therefore, a cold storage pack in which a plurality of cold storage bodies 2 are provided in series will be described. FIG. 3 is a view showing a state of a cold storage pack composed of two cold storage bodies, and FIG. 3 (a) shows a cover sheet 10 of the foldable portion 3 of the two cold storage bodies 2 using, for example, a magic tape or the like. 1 shows a cold storage pack 11 formed by detachably bonding the heat storage pack 11. FIG. 3 (b) shows two regenerators 2
FIG. 4 is a diagram showing a cold storage pack 11 formed by welding a bendable portion 3 of a cover sheet 10 of FIG. 3 (a) and 3 (b), it is possible to freely fold the covering sheet 10 located in the foldable portion 3 and thus freely fold the covering sheet 10 in the foldable portion 3. If
The regenerator 2 may be joined using any method other than the above. Although FIG. 3 shows the cold storage pack 11 in which the two cold storage bodies 2 are connected, the cold storage pack 11 in which two or more cold storage bodies 2 are connected horizontally may be used.

Next, the shape of the cold insulator 1 will be described.
The cold insulator 1 is formed by connecting a plurality of cold storage bodies 2 in a horizontally long manner to form a cold storage pack 11, and connecting a plurality of the cold storage packs 11 in combination. FIG. 4 is a view showing the shape of the cold insulator housed in the cold insulator main body, and is a plan view of the cold insulator main body shown in FIG. 1 (a). The cold insulator 1 shown in FIG. 4 and FIG. 1A has four double cold storage packs 11 a having two cold storage bodies 2 and one four cold storage pack 11 having four cold storage bodies 2.
And a continuous accumulation pack 11b. The method of connecting the two consecutive cold packs 11a and the four consecutive cold packs 11b will be described below. First, the quadruple cold storage pack 11b is formed into an annular shape by joining the covering sheet portions at both ends by welding or detachably bonding to each other to form an annular shape. The cover sheet 10 of the foldable portion 3 of the cover sheet of the dual cold storage pack 11a is added to the cover sheet 10 of the four foldable portions 3.
The two cold storage packs 11a and the four continuous cold storage packs 11b are connected together by welding or detachably bonding the zeros. Such a method of connecting the cold storage body 2 and the cold storage pack 11 is performed by welding using a high-frequency welding method.
Alternatively, it may be detachably adhered using a magic tape or the like, or another method may be used. For example, in the case of the cold insulator 1 shown in FIG.
The two regenerators 2 are connected in series to form two triple regenerator packs, and one or more (one in the figure) regenerators are provided between the covering sheet portions 10 of the foldable portions 3 of the three regenerative packs. 2, the cover sheet portion of the bendable portion of the triple regenerative storage pack and the cover sheet portions 10 at both ends of the regenerator 2 are welded in a bendable manner or bonded detachably to be joined. Good.

Next, the case where the cold insulator 1 having the shape shown in FIG. FIG.
The figure shows that the cold insulator 1 is set in the cold insulator main body 5 in a state where nine partition rooms 4 are formed, and drinking water is stored in each of the partition rooms 4 by type. Since the plastic cardboard 9 constituting the cold insulator 1 has a shape self-holding property, the cold insulator 1 is stored in the cold insulator main body 5 in a state of standing upright in a direction perpendicular to the connecting direction of the cold insulator 2. Can be. That is, since it is possible to form a partition in the cool container body 5, several kinds of drinking water can be separated and stored in the cool container body 5, and the target product can be immediately searched for. Becomes In addition, the cold insulator 1 is previously frozen by freezing or the like before use, but if the cover sheet 10 of each foldable portion 3 is folded and placed in a freezer in a compact state, the space can be used effectively. . As shown in FIG. 1 (b), the insulated container body 5 in which drinking water can be separately stored by the insulated body 1 is transported with the lid 6 set.

Next, a case where the cold insulator having the shape shown in FIG. 4 is stored in cold insulators 7 of different sizes will be described. For example, as shown in FIG. 5, when the cold insulator 1 is stored in the cold insulator main body 5 having a smaller size than the cold insulator main body 5 of FIG. 4, the cold insulators 2a and 2b (see FIG. 4) of the cold insulator 1 are folded. The cold insulator 1 can be stored in a state fitted to the small-sized cold insulator main body 5 (see FIG. 5). At this time, the cold insulator 1 forms six partition rooms 4.
When the size of the cold storage container 7 to be used is different as described above, if the folding shape of the cover sheet 10 of the foldable portion 3 is changed so as to conform to the size of the cold storage container 7, several types of the cold storage container 7 can be obtained. Thus, one cold insulator 1 can be used. Further, even in the same cold storage container 7, when the quantity of certain drinking water is large or the number of types of drinking water to be stored is different, the folding shape of the cover sheet 10 of the foldable portion 3 is changed to change the size of the partition room 4 or the like. What is necessary is just to change a number. In addition, when storing the cold insulator 1 in a cold container larger than the currently used cold container 7, a new cold storage 2 may be connected to fit the size, and a large cold container is used. If it is known, the regenerator 2 may be connected in advance. That is, the size and the number of the regenerators 2 constituting the refrigerating body 1 or the folded shape of the refrigerating body 1 are set in consideration of the size of the refrigerating container 7 to be used and the number and type of the required drinking water. I just need.

The cold insulator 1 according to the first embodiment
Has been described using the shapes shown in FIGS. 1 (a), 4 and 5, but the shape of the cold insulator 1 is not limited to this. What is necessary is just to set the shape of the cold insulator 1 in consideration of the number, type, and the like.

As described above, the cold insulator 1 of the first embodiment
Is a cold storage pack 11 formed by connecting a plurality of cold storage bodies 2 in a horizontally long manner.
And a plurality of the cold storage packs 11 are combined and connected, and the cold storage body 2 which is the minimum unit of the cold storage body 1 is formed.
Is to enclose a gel-like regenerator 8 having high elasticity at room temperature in a plastic cardboard 9 having a high strength and a self-holding shape, and the plastic cardboard 9 is coated with a cover sheet 1.
0, the cold insulator 1 has an effect of being rugged and hardly damaged. Further, even if the cold insulator 1 is damaged, the cold storage agent 8 is a gel-like material having high elasticity even at normal temperature, so that the cold storage container is no longer filled with water as in the related art. It is possible to prevent the drinking water container from getting wet and to prevent microorganisms and mold from multiplying, which is very hygienic. In addition, the cold insulator 1 after use
Can be used over and over again by putting it in a freezer and freezing it again, which has the effect of reducing costs.

The size and number of the regenerators 2 constituting the refrigerating body 1 or the folded shape of the refrigerating body 1 are set in consideration of the size of the refrigerating container 7 used and the required number of types of drinking water. It is possible to reuse one cold insulator 1 in several types of cold containers 7 of different sizes,
Cost reduction. Further, since the cold insulator 1 is shaped so that a partition can be formed in the cold insulator 7, various types of drinking water can be separated and stored in the cold insulator 7,
This makes it possible to immediately search for the desired product, which has the effect of increasing work efficiency.

[0027]

As described above, the regenerator according to the present invention (claims 1 to 7) is a regenerator composed of a plurality of regenerative packs in which a plurality of regenerators are connected in series, and the regenerator has a hollow inside. It is assumed that a hard plate-shaped hollow container in which a cold storage agent is enclosed is enclosed in a covering sheet, and a plurality of regenerators are joined to be able to bend the covering sheets on the front and back located on the sides. Or a cold storage container in a state where the cold storage packs are connected to each other to form a terminal end of the cold storage pack so as to be connected to each other to form a cold storage pack, and the cold storage packs are erected to form a partition room. Since various types of drinking water can be stored separately in the cool container, the effect of being hygienic and capable of being used repeatedly can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a state in which a cold insulator according to a first embodiment of the present invention is housed in a cold insulator.

FIG. 2 is a diagram showing a regenerator according to the first embodiment.

FIG. 3 is a diagram showing a cold storage pack having two cold storage bodies according to the first embodiment.

FIG. 4 is a diagram showing a state where the cool insulator according to the first embodiment is housed in a cool container.

FIG. 5 is a view showing a modification of the cool insulator according to the first embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cold insulator, 2, 2a, 2b Cold storage body, 3 bendable part, 4 partition room, 5 cold insulator main body, 6 lid, 7
Cold storage container, 8 cold storage agent, 9 plastic cardboard, 10 covering sheet, 11, 11a, 11b cold storage pack.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tadayoshi Teramoto 1-16-5 Tamade Nishi, Nishinari-ku, Osaka-shi, Osaka Toho Shoji Co., Ltd. 215 (72) Inventor Minoru Yamada 3-15-51 Migatadai, Nishi-ku, Kobe City, Hyogo Prefecture (56) References JP-A-59-142965 (JP, A) Japanese Utility Model Application Hei 3-58121 (JP, U) 46-21579 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) F25D 3/00

Claims (7)

(57) [Claims] Claims: 1. An insulated container for use in a cold storage container.
A regenerator comprising a plurality of regenerative packs in which a plurality of regenerators are connected in series, wherein the regenerator has a hard plate-shaped hollow container in which a regenerator is sealed in a hollow part of the inside thereof, in a covering sheet. The plurality of regenerators are joined so as to be able to fold the front and back cover sheets located on the side of the regenerator, and are joined to form the end of the regenerator pack at the end. The cold storage packs are connected to each other to form the cold storage pack, and the cold storage packs are stored in the cold storage container in a state of being erected in a direction perpendicular to the connecting direction, and are stored in the cold storage container. A cold insulator characterized by forming a partition. 2. The cold insulator according to claim 1, wherein a cover sheet portion of a foldable portion of the first cold storage pack;
By joining the cover sheet portion of the bendable portion of the second regenerative pack, the first regenerative pack and the second regenerative pack are joined together.
A cold storage pack characterized by being connected to each other. 3. The regenerative body according to claim 1, wherein the direction of the regenerative body of each regenerative pack is between the covering sheet portions of the foldable portions of the first regenerative pack and the second regenerative pack. Third with one or more regenerators in a perpendicular direction
And each of the covering sheet portions of the foldable portions of the first and second regenerative packs and each of the covering sheet portions at both ends of the third regenerative pack are foldably joined. A cold insulator characterized by comprising: 4. The cold storage body according to claim 1, wherein four double storage packs each having two of the cold storage bodies are provided.
And a single quadruple cold storage pack having a plurality of the cold storage bodies, wherein the single quadruple cold storage pack is formed into an annular shape by joining the covering sheets at both ends thereof, and the four double cold storage packs are provided. The covering sheet portion of each bendable portion of the pack and the covering sheet portion of each bendable portion of the four-fold cold storage pack are respectively joined, and the one four-fold cold storage pack and the four two-fold cold storage pack are connected to one another. A cold insulator characterized by being connected to one another. 5. The cold insulator according to claim 1, wherein the regenerator has a property that it does not plastically deform at temperatures above and below the cold temperature. 6. The cold insulator according to claim 1, wherein the hollow container is formed of a water-resistant plastic cardboard or a blow molding method. 7. The cold insulator according to claim 1, wherein the cold insulator comprises a synthetic resin container body and a synthetic resin lid fitted to the container body. A cold insulator characterized by being a heat insulating container.