JPH05262378A - Heat-insulating container for transport - Google Patents

Abstract

PURPOSE:To improve the heat-insulating capability and handling property, and make the container recyclable by a method wherein top and bottom split bodies with a box shape are formed of a flat flexible material, for which a surface layer and back layer are laminated on a central layer of a heat- insulating material, and they are extended and set up as respective top and bottom containers while covering the outside of an object to be stored, for a heat-insulating container for transport of ice, etc. CONSTITUTION:Top and bottom flat flexible materials 10, 20 are constituted in such a manner that e.g. a hard urethane foam is made to be a heatinsulating material, and a front layer and back layer made of polyester and cotton are laminated on the front and rear surfaces of the heat-insulating material. Then, respective overlapping parts 11-14, 21-24 of the upper flat flexible material 10 and lower flat flexible material 20 are bent sideways, and top and bottom bending parts 15-18, 25, 28 are bent to make box bodies, and flat fasteners 40, 41 are attached to the overlapping parts 11-14, 21-24 and the banding parts 15-18, 25-28. The top and bottom flat flexible materials 10, 20 are folded from the extended condition in such a manner that an object to be stored is wrapped by the top and bottom flat flexible materials, 10, 20, to set up a box body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold container for transportation having a binder such as a hook-and-loop fastener used for transporting dry ice and ice.

[0002]

2. Description of the Related Art Dry ice is easy to sublime and is shipped.
Sufficient cold storage is required at each stage of transportation and storage. In particular, the amount of sublimation loss at the stage of storage transportation is not negligible. For this reason, each manufacturer uses the intention of keeping cool during storage and transportation, for example, a method of enclosing and storing dry ice stored in a special basket in a vertical-hole-type heat-insulating muro, or a method of bulk-loading in cold-cooled cars, Methods such as bulk loading in a cool container and covering with a heat insulating material such as a truck shipper have been implemented, and in the case of a small amount, folding as shown in Japanese Utility Model Publication No. 59-2694. A method using a heat shield container is also used.

[0003]

In the method using the heat-insulating muro described above, the hoist is used to carry in and carry out dry ice into the muro, so that the shipping work concentrated in the early morning is always delayed, and the transportation by waiting trucks is always delayed. It is a cause of traffic congestion, and there is the inconvenience of not being able to predict the scheduled delivery time. Furthermore, due to the structure of the heat insulating muro, a so-called steam trace may be performed in which steam piping is provided between the lid and the muro container to prevent freezing of the lid, and heating is performed.
The fact is that sublimation loss for this cannot be ignored.

Further, since loading work on a bulk loading truck is complicated and requires a lot of time and manpower, it is possible to develop a cold container for transportation that can be loaded by a forklift and is efficient. It was requested.

The heat shield container shown in the above-mentioned publication is
This is one of the technologies proposed for such a request. However, due to the freezing of the inner wall of the container and the string for binding, it often becomes difficult to take out dry ice from the container, and It was inconvenient to reuse.

It is an object of the present invention to provide an improved cold storage container for transportation which satisfies the above-mentioned requirements, is excellent in adiabatic cold storage performance, is easy to handle and is excellent in reuse. is there.

[0007]

The cold storage container for transportation of the present invention, which solves the above-mentioned technique, is a flat flexible material having a laminated structure of a heat insulating material as a central layer and a surface material and a lining material, and can be flatly developed. It is a box-shaped structure that is divided into upper and lower parts, and the upper and lower containers are assembled while covering the outside of the stored items.

A cold storage container for transportation according to a typical embodiment of the present invention, which solves the above-mentioned problems, is a plane flexible material having a laminated structure of at least two sheets which are cut by being composed of a heat insulating material as a central layer and a surface material and a lining material. Each of the flat flexible members is bent upward and downward to form upper and lower box bodies, and the upper and lower box bodies are provided with a horizontal overlap margin portion and an upper and lower box margin upper and lower overlap margin portions, respectively. It has a structure with a surface fastener attached.

The present invention will now be described in detail with reference to the accompanying drawings.

FIG. 1 shows a representative embodiment of the present invention.
FIG. 2 is an exploded plan view of the cut flat flexible material 10 forming the upper box body, FIG. 2 is a developed plan view of the cut flat flexible material 20 also forming the lower box body, and FIG. Is shown in an assembled state in another embodiment of. It is preferable that the size of the flat flexible material 10 forming the upper container is large in order to reduce sublimation loss, but considering the handling by a forklift and the space of the truck carrier, about 1850 × 1150 × 800 (mm). The volume of the flat flexible member 20 forming the lower container is 18
It is preferable that the size is about 50 × 1150 × 200 (mm) or the size of each of these is about ½.

Upper plane flexible material 10 and lower plane flexible material 2
In order to form a box body by 0, each overlap margin part,
11 to 14 and 21 to 24 are bent laterally, and the upper and lower bent portions 15 to 18 and 25 to 28 are bent. In order to maintain the state of the box body, the overlap margin portions 11 to 1
4 and 21-24 and upper and lower bent portions 15-18
For example, a surface fastener such as a velvet fastener is used for each of the overlapping margins of 25 to 28.

Similar hook-and-loop fasteners are also used for the upper and lower overlapping portions of the upper and lower boxes. In FIGS. 1 and 2, the upper and lower overlap margin portions are shown with the female surface fastener shown by the upper left diagonal line and the male surface fastener by the upper right diagonal line, but they may be reversed. The virtual line (broken line) indicates the surface fastener on the back surface side.

Male and female hook-and-loop fasteners may be attached to the respective corresponding portions of the horizontal overlap margin portion and the upper and lower overlap margin portions, and the female surface may be attached to the horizontal overlap margin portion and the upper and lower overlap margin portions. You may make it attach a double-sided male surface fastener in the middle of attaching a fastener. The reverse is also possible.

In FIG. 3, female hook-and-loop fasteners 40 are attached to the overlapping portions of the upper and lower bent portions 15 to 18 and 25 to 28, respectively, and both are joined by a belt-shaped male double-sided fastener 41. Is configured to. In this case, the end portion of the strip-shaped male double-sided fastener 41 is the upper box 1
It is preferable to fix it to either 0 or the lower box body 20 in order to prevent loss.

Further, FIG. 3 illustrates that the lower flat flexible material 20 is bent and fixed by a surface fastener, and then the upper flat flexible material 10 is bent and the upper and lower surface fasteners are fixed by a double-sided fastener. ..

In the present invention, the term "planar flexible material having a laminated structure of at least two sheets" includes a case of multiple packaging and does not mean any particular cutting method. 1 and FIG. 2 are typical examples. However, it goes without saying that it includes these modifications that can be usually adopted.
For example, the hook-and-loop fastener preferably covers the entire overlapping portion, but it may be a part thereof.

In the case of packaging contents such as dry ice that need to be kept cool by the flat flexible material having the laminated structure of the present invention, the constitutions shown in the examples described later are representative examples thereof. Can be variously changed according to the contents of the package, the purpose of transportation, and the like.

That is, one of the other embodiments of the present invention is shown in FIG. 4, and as is apparent from FIG. 4, the downward bending portion 15 of the flat flexible member 10 forming the upper container.
To 18 and the upwardly bent portions 25 to 28 of the flat flexible member 20 forming the lower container, a female side 40 of a hook-and-loop fastener is attached, for example, and they are bound by a band-shaped male hook-and-loop fastener 41. It is configured as follows. In order to prevent loss, it is preferable that the end portion of the strip-shaped male surface fastener 41 is fixed to either the flat flexible material 10 forming the upper container or the flat flexible material 20 forming the lower container.

In the present invention, the sealing means such as the overlapping portion is not limited to the binding by the binding tool such as the surface fastener, and a band or the like can be used from the outside, if necessary. If the overlap portion is large, it is not even necessary to use them.

Materials and the like of the planar flexible material having a laminated structure will be described below.

The flat flexible material 10 forming the upper container and the flat flexible material 20 forming the lower container basically have a three-layer structure of a surface material, a heat insulating material, and a lining, respectively, and prevent damage to the outer surface. Therefore, it may further include a surface protective material.

As the surface material, a cloth made of synthetic fiber such as polyester, for example, "Lite No. 6" manufactured by Unitika Ltd.
"050" (trade name) is preferably used, but many materials can be used as long as the heat-resistant temperature is about 70 ° C.

As the lining material, cotton, for example, waterproof material such as "Hari No. 10" (trade name) manufactured by Daiwabo Co., Ltd. is preferably used, but there is no restriction on the material like the outer material.

Soft urethane foam is preferably used as the heat insulating material for the flat flexible material 10 forming the upper container, and hard urethane foam is preferably used as the heat insulating material for the flat flexible material 20 forming the lower container. The material can be freely selected as long as it has a heat resistant temperature of about ℃. In addition,
The thickness of the heat insulating material is appropriately determined depending on the size and the heat insulating property. With the above size, a soft urethane foam, preferably 1
It is about 0 to 50 mm.

Further, the plane flexible member 20 forming the lower container
Dry ice or the like is placed on top of this to fix the horizontal surface fastener, and then the flat flexible material 10 forming the upper container is covered, and after fixing the horizontal surface fastener and the upper and lower surface fasteners, a bag-like polyethylene If you take measures to prevent convection by covering with a plastic sheet, you can expect a further cooling effect.

[0026]

EXAMPLES The above-mentioned polyester and cotton were used as the outer material and the lining, and a soft flexible foam having a thickness of 20 mm and a hard urethane foam having a thickness of 30 mm were separately filled as the heat insulating material of the plane flexible material to form plane flexible materials 10 and 20, respectively.

A flat flexible material 20 forming a lower container is placed on a pallet 30, and a rectangular small package of dry ice (25 kg package) is placed on the top of the pallet in 7 × 3 × 3 layers. Stacking, bending the surfaces 25 to 28 of the flat flexible material upward, and further superposing the surface fasteners of the lateral overlap margin portions 21 to 24 on the respective surface fasteners of the corresponding surfaces 25 to 28, and pressing to fix the surface fasteners. Then, cover it with a flat flexible member 10 forming an upper box, and
Bend 5 to 18 downward, and then the horizontal overlap margin portion 11
The surface fasteners of Nos. 14 to 14 were superposed on the respective surface fasteners of the corresponding surfaces 15 to 18, and the surface fasteners were fixed by pressing to complete the storage of dry ice in the cold container for transportation.

The cold storage container for transportation containing dry ice was placed in a well-ventilated place, and the weight loss was measured after 48 hours. In addition, when the contents were transferred to a cold room, the work efficiency at this time was remarkably superior to the conventional packaging form, and many effects were recognized in terms of reuse.

Judgment result of amount of loss: The loss due to sublimation of dry ice was 7.7% by weight when left for 48 hours.
This value indicates that the loss in the case of the conventional muro method was significantly improved compared with the loss of 14.2% by weight when left for 48 hours.

[0030]

According to the cold storage container for transportation of the present invention, the above-mentioned problems can be solved, and particularly in the typical embodiment, packaging is performed by using a surface fastener,
Since it is extremely easy to store and take out, it is suitable for transportation of, for example, dry ice, which easily sublimes and requires sufficient cooling.

Further, according to the present invention, by preparing in advance the number of shipments in the shipment standby state, it is possible to load the truck quickly with the forklift as soon as the truck arrives. However, the work efficiency is significantly improved. Furthermore, since the ones used as the upper and lower containers can be unfolded flat, they can be brought home with almost no effect on the load capacity of the return truck.
Useful for reuse.

[Brief description of drawings]

FIG. 1 is a development view of a plane soft material forming an upper container according to a representative embodiment of the present invention.

FIG. 2 is a development view of a plane soft material forming a lower container in a representative embodiment of the present invention.

FIG. 3 is a perspective view of an assembled state according to another embodiment of the present invention.

FIG. 4 is a perspective view of an assembled state according to still another embodiment of the present invention.

[Explanation of symbols]

 10 Planar soft material 11-14 which forms an upper container 11-14 Horizontal overlap margin part 15-18 Bending part (face) to the lower part 20 Flat flexible material 21-24 which forms a lower container Horizontal overlap margin part 25-28 Upward Bent part (face) 30 Pallet 40 Female hook-and-loop fastener 41 Male hook-and-loop fastener

Claims (3)

[Claims] 1. A planar flexible material having a laminated structure of a surface material and a lining material with a heat insulating material as a central layer, which is a box-shaped upper and lower parts which can be flatly spread, and which covers the outside of a stored item. Meanwhile, a cool container for transportation characterized by assembling the upper and lower containers. 2. A flat flexible material having a laminated structure of at least two sheets, which is composed of a heat insulating material as a central layer and a surface material and a lining material, and is cut, and the flat flexible material is bent upward and downward, respectively. A cold storage container for transportation, which is formed into a box, and in which hook-and-loop fasteners are attached to the horizontal overlapping margins of the upper and lower boxes and the upper overlapping margins of the upper and lower boxes. 3. The method according to claim 1, which is intended for dry ice.
Cold storage container for transportation as described.