JP2003063570A - Cold insulating container for door-to-door delivery service - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cold insulating container which can be suitably used when perishable foods and beverages are delivered via a door-to-door delivery service, and can be easily disposed of after disuse. SOLUTION: In this cold insulating container 10, a container body 10 is constituted as follows: a heat insulating sheet 2, in which corrugated paper 2a and a foam sheet 2b are laminated together, is fitted into an inner surface of a side wall 1a of a box body 1 made of corrugated paper; a heat insulating sheet 3, in which corrugated paper and a foam sheet are laminated together, is fitted into an inner surface of a bottom plate 1b; and a heat insulating sheet 4, in which corrugated paper 4a and a foam sheet 4b are laminated together, serves as an inner lid. The container 10 has approximately the same cold insulating capacity as a conventional cold insulating container made of styrofoam, so as to eliminate a fear that freshness of the perishable foods and the like may be decreased, even in the case of temporary custody in the absence of a receiver or omission of storage into a refrigerator. In addition, the container 10 can also be disposed of by incineration, and can be more easily disposed of than the conventional cold insulating container made of the styrofoam.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a courier cool box for transporting and storing fresh foods, alcoholic drinks, dairy drinks and the like.

[0002]

2. Description of the Related Art When transporting and storing fresh food products such as fruits, vegetables, meat and seafood, alcoholic drinks such as alcohol, beer and wine, and milk drinks such as yogurt, the freshness of the products is maintained and the quality of products is maintained. In order to prevent deterioration, it is necessary to keep the product in a low temperature state, and a cold storage container is used as a container therefor.

Particularly in recent years, a delivery system called so-called courier service has become widespread, and home delivery of refrigerated products and frozen products has been widely used, and various dedicated cold storage containers suitable for this courier service have been proposed. The basic structure of this type of cold storage container is
It comprises a container body formed of a synthetic resin foam such as expanded polystyrene, and a lid accommodating a regenerator.

For example, Japanese Unexamined Patent Publication No. 2000-159271 discloses a container body, a regenerator, and a lid capable of accommodating the regenerator, the lid being open above and below the regenerator accommodating portion. In addition, an auxiliary lid is freely attachable to the upper opening, a support for the regenerator is formed around the lower opening, and a notch is provided in the middle of the support, and the back of the lid is attached. There is disclosed a cold insulation container having a configuration in which an inclined groove having a lower outer side is provided on an extension of the cutout portion. This cold storage container is an improved cold storage container in which condensed water generated in the cold storage body does not adversely affect stored products (delivery products).

[0005]

As described above, the refrigerating container for courier has undergone various improvements, and in combination with the improvement of the temperature control technology in the storage of the transport vehicle, the storage in the transport process has been improved. Product temperature control is almost perfect.

However, the temperature control of the home delivery is completely performed in the process until the home delivery of the refrigerated product or the frozen product is requested to the home delivery company and the delivery destination is stored in the refrigerator at a low temperature. Is only while the parcel is under the control of the courier, and if the delivery destination is absent and is temporarily stored at the designated storage location of the apartment or a manager, or if the delivery destination is If they are temporarily left after they are received, the cold storage of the parcels will not be achieved. In order to be able to maintain a low temperature to some extent even after the parcel is removed from the courier's hand, the product must be stored in a container with a cold insulation function, such as foamed synthetic resin, and then the courier must request delivery. I don't get.

However, although it is known that complete temperature control is carried out after a delivery request is made to a courier, it can be said that it is a waste of the packaging container to place the delivery request in a container having a cold insulation function. If there is a simple cold insulation container having a cold insulation function even after being delivered to the delivery destination, it is possible to prevent wasteful use of the cold insulation container made of foamed synthetic resin, but at present, there is no cold insulation container suitable for such purpose.

Further, the conventionally used container made of foamed synthetic resin has a problem in disposal when it becomes unnecessary after use. That is, it is not possible to incinerate easily because of the generation of toxic gas, nor is it decomposed or corroded, so that it cannot be disposed of at the disposal site. The fact is that ordinary households are confused about the disposal of containers made of expanded synthetic resin that are no longer needed.

It is an object of the present invention to provide a cold container which can be suitably used when delivering fresh food or beverages by courier and which can be easily disposed of after it is no longer needed.

[0010]

Means for Solving the Problems The inventor of the present invention has various advantages regarding the heat insulating performance, the cushioning performance, the processing performance, the material cost, the restriction on the disposal, etc. of the main material constituting the container main body of the courier cool box. As a result of examining the materials used alone and in combination, it was satisfied that the container body was constructed by combining a foam sheet made mainly of waste paper and cardboard (including corrugated paper) against the above conditions. The inventors have completed the present invention by finding that they should exhibit the required performance.

That is, the courier cool container of the present invention is characterized in that a container body is formed by combining a foam sheet mainly made of powder of waste paper and a cardboard for reinforcing the foam sheet.

Here, examples of the foam made of waste paper powder as a main raw material include, for example, JP-A-7-267276, JP-A-9-13299, and JP-A-10-152173.
As disclosed in, for example, Japanese Patent Publication, there have been proposed some manufacturing methods, and a foam sheet manufactured according to these manufacturing methods can be used, but it is easy to dispose of. It is preferable that the ratio of the synthetic resin component in the raw material is low. Synthetic resin component as an adhesive,
Alternatively, although it is used as a foaming agent, it is preferable that the foaming agent uses a component other than a synthetic resin, and that the synthetic resin component as an adhesive is as small as possible. Furthermore, it is desirable to use a biodegradable resin as the synthetic resin. As such a preferable manufacturing method, for example, Japanese Patent Laid-Open No. 2000-2838.
The gazette is mentioned. This manufacturing method is a method for manufacturing a foam sheet in which powder of used paper such as newspapers and magazines is kneaded with a mixture of a polyolefin resin and / or a biodegradable resin powder as an adhesive and heated and melted to form water. Is the way. The foam sheet produced by this method,
At present, it is possible to manufacture a product having a thickness of about 20 mm, which has good heat insulating properties and excellent characteristics as a cushioning material, and can be suitably used as a cushioning material for a glass bottled beverage. As such a foam sheet, it is possible to use, for example, a waste paper-based cushioning material of “Earth Republic cushioning material” (trade name) manufactured by Environmental Management Research Institute, Inc.

As the cardboard for reinforcing the foam sheet, general-purpose corrugated cardboard or water-resistant corrugated cardboard, having a thickness of 1 m
A general-purpose cardboard having a thickness of about m or more and a water-resistant cardboard can be used. Examples of the method for constructing a container body by combining a foam sheet and a cardboard include a method in which a foam sheet is attached to the inner surface of a box or a cylinder formed of cardboard, or a box in which a cardboard and a foam sheet are attached. Alternatively, a method of forming a tubular body, a method of fitting a box or tubular body formed of a foam sheet into a box or tubular body formed of cardboard, and the like can be adopted. In either case, the container body including the foam sheet is of a prefabricated type to facilitate the disassembly of the container when it is no longer needed, and the bonding of the cardboard and the foam sheet is not necessary. It is preferable that the cardboard and the foam sheet have weak adhesion so that they can be easily separated (peeled) from each other.

With the above-mentioned structure, it is possible to obtain a cooler container for courier which is smaller and lighter than the conventional cooler container for courier made of styrofoam and which can be easily disposed of after it is no longer needed. . When delivering a refrigerated product or a frozen product by courier, the product is stored in the cold storage container and requested to be delivered to a courier, and the courier delivers the cold container to the delivery destination. As a result, even if the product is temporarily not refrigerated at the delivery destination, the product can be kept cold in a state close to the temperature-controlled condition immediately before delivery. After the cold storage container is no longer needed, the assembly-type container can be disassembled, the cardboard and the foam sheet can be separated, and the waste can be discarded as waste separated from the paper and the synthetic resin-containing material. Since the synthetic resin component contained in the foam sheet is a small amount, it can be incinerated, and it is easier to dispose of it as compared with the conventional Styrofoam cold storage container.

Further, since the conventional styrofoam courier cool box for home delivery is a three-dimensional container, the die cost of the styrofoam container is expensive. Therefore, there are restrictions on the type of container size, and the stored product Although it may be inconvenient in terms of size, since the mold of the foam sheet used for the cold insulating container of the present invention may be a flat mold, the mold cost is about 1/10 of the mold cost of the Styrofoam container, Moreover, since it can be easily cut into a required size, other types of containers can be prepared, and a cold storage container having a size and shape suitable for a product to be stored can be used.

[0016]

FIG. 1 is a diagram showing the internal structure of a courier cool box according to a first embodiment of the present invention. The cold insulation container 10 of the present embodiment is configured such that a heat insulating sheet 2 obtained by bonding a corrugated cardboard paper 2a and a foam sheet 2b is fitted to the inner surface of a side wall 1a of a corrugated cardboard box 1 and the corrugated cardboard paper is also attached to the inner surface of a bottom plate 1b. This is a container in which a container body 10 is formed by fitting a heat insulating sheet 3 to which a foam sheet is stuck, and also using a heat insulating sheet 4 to which a corrugated paper 4a and a foam sheet 4b are stuck together as an inner lid.

The box body 1 made of corrugated cardboard is an ordinary assembly type box. In the present embodiment, this box body 1 made of corrugated paper
The heat insulating sheets 2, 3 and 4 in which the corrugated cardboard and the foam sheet are stuck together are fitted into the inner surface of the sheet. Corrugated paper for heat insulation sheets is a box 1
This is the same as the corrugated cardboard paper, and the foam sheet used "Earth Republic cushioning material" (trade name) manufactured by Environmental Management Research Institute, Inc.

This foam sheet is obtained by kneading a mixture of 60% of waste paper powder and 40% of polypropylene powder, heat-melting and water-foaming, and has a specific gravity of about 0.03 and a thermal conductivity of about 0. .03 kcal / m. h. ℃. This thermal conductivity is that of glass wool (0.043 to 0.04).
0 kcal / m. h. ℃), which is almost the same level as the thermal conductivity of styrofoam (0.028 kcal / mh ° C), has excellent properties as a heat insulating material, and has sufficient performance as a cushioning material. ing. Since the foam sheet has a thickness of about 10 to 20 mm and the heat insulating sheet has a thickness of about 13 to 23 mm when laminated with the corrugated paper, it does not significantly impede the storable amount of the box 1.

When this cold-insulating container 10 is used as a container for courier, the contents are stored with the box 1 opened as shown in FIG. If you put a lid on it and seal it, you can get home delivery. The courier will store this parcel in a dedicated cold storage container, transport it to the delivery destination, and deliver it to the delivery destination only as in the conventional case. Even after receiving the parcel, the heat insulation effect of the heat insulation sheet of the cold insulation container 10 has the same cold insulation capacity as that of the conventional Styrofoam cold insulation container, so when the recipient is absent, it is stored in a refrigerator or a refrigerator. Even if you forget
There is no need to worry about the freshness of fresh food products decreasing.

The cold container 10 after the stored items are taken out can be used any number of times. Cold container 10
When you no longer need the heat insulation sheet 2, 3,
If the box 4 is removed and the box 1 is separated as paper dust and the heat insulating sheets 2, 3, 4 as synthetic resin-containing dust, the disposal process is facilitated. The "earth / republic cushioning material" used in this embodiment is treated as a "paper container" in the "Container and Packaging Recycling Law".

FIG. 2 is a view showing an open state of a cooler container for home delivery according to the second embodiment of the present invention, and FIG.
It is a figure which shows the internal structure of the cold insulation container of FIG. 4, and FIG. 4 is a development view of a foam sheet.

The cold insulation container 20 of the present embodiment comprises a box body 11 made of corrugated cardboard and a foam sheet 12 and 1 shown in FIG.
3 is assembled and assembled as shown in FIGS. 2 and 3. The box 11 is made of corrugated cardboard and is an assembling type box including a side wall 11a, a bottom plate 11b, an inner lid 11c and a lid 11d. The foam sheets 12 and 13 are the same as the foam sheets of the first embodiment, the foam sheet 12 is a stack of two foam sheets 12a and 12b, and the foam sheet 13 is a bent piece 13b that is continuous with the lid piece 13a. , 13
As a folding mold composed of c and 13d, it is formed into a box shape when it is assembled in close contact with the inner surface of the box body 11.

When the cold insulation container 20 is used as a courier container, the foam sheets 12, 13 shown in FIG.
As shown in FIG. 3, the box body 11 is assembled, the stored items are stored therein, and the lid piece 13a of the foam sheet 13 is laid inward as shown in FIG. If you seal it, the delivery will be completed. The cold insulation container 20 of the present embodiment also has the same cold insulation performance as the cold insulation container 10 of the first embodiment. Further, the cold insulation container 20 can be repeatedly used any number of times, and when it is no longer needed, it can be easily disposed of by separating the foam sheet.

When water-resistant paper or water-resistant corrugated paper whose surface is water-resistant is used as the box 11 of this embodiment, the cold storage container 20 can be used for delivery of frozen food. In addition, the foam sheets 12, 13
Can be freely cut and bent, so that the foam sheets 12 and 13 can be installed in close contact with each other in the box body 11,
By preventing water from leaking to the outside, the stored product can be stored in the cold storage container 20 in a state of being iced.

FIG. 5 is a view showing an open state of a cool box for home delivery according to the third embodiment of the present invention, and FIG. 6 is shown in FIG.
It is a development view of the cold storage container. Cold storage container 30 of the present embodiment
The heat insulating sheet 23 in which the corrugated paper 21 and the foam sheet 22 are bonded together is punched into the shape shown in FIG. 6 to form a cylindrical container as shown in FIG. In a punched state before forming a cylindrical container, as shown in FIG. 6, it is composed of a body member 23a and lid members 23b and 23c, and the body member 23a has a body locking piece 23d and a body locking cutout portion. Two
3e and lid locking notches 23f and 23g are formed,
The lid members 23b and 23c have lid locking pieces 23h and 2 respectively.
3i is formed.

The cold insulation container 30 of this embodiment also has the same cold insulation performance as the cold insulation containers 10 and 20 of the first and second embodiments. In particular, a container having a cylindrical shape is most suitable as a cold storage container for cylindrical foods such as ham and sausage and beverages in glass bottles.

[0027]

EFFECTS OF THE INVENTION By forming a container body by combining a foam sheet mainly made of waste paper powder and a cardboard which reinforces the foam sheet, it is smaller than a conventional styrofoam cooler for courier delivery. A lightweight cool container can be obtained. By storing parcels in this cold storage container, even if the delivery destination of the parcel does not store the refrigerated products temporarily,
Food items can be kept cool in a manner close to the temperature-controlled state until just before delivery. In addition, since the synthetic resin component contained in the foam sheet is small, it can be incinerated after it is no longer needed, and can be easily disposed of as compared with a conventional styrene foam cool container.

[Brief description of drawings]

FIG. 1 is a diagram showing an internal structure of a courier cool box according to a first embodiment of the present invention.

FIG. 2 is a view showing an open state of a courier cool box according to a second embodiment of the present invention.

FIG. 3 is a diagram showing an internal structure of the cold insulation container of FIG.

FIG. 4 is a development view of the heat insulating sheet of FIG.

FIG. 5 is a view showing an open state of a courier cool box according to a third embodiment of the present invention.

6 is a development view of the cold insulation container of FIG.

[Explanation of symbols]

1 box 1a Side wall 1b Bottom plate 2,3,4 heat insulation sheet 2a, 4a Corrugated paper 2b, 4b foam sheet 10 Cold storage container 11 boxes 11a side wall 11b bottom plate 11c inner lid 11d lid 12, 12a, 12b, 13 Foam sheet 13a lid piece 13b to 13d Bending pieces 20 cold storage container 21 Corrugated paper 22 Foam sheet 23 Insulation sheet 23a Body member 23b, 23c lid member 23d Body locking piece 23e Notch for locking body 23f, 23g Notch for locking the lid 23h, 23i lid locking piece 30 cold storage container

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B65D 81/38 B65D 81/38 BCD F term (reference) 3E060 AA03 BA03 BB01 BB02 BB03 BC01 BC04 DA30 EA13 3E067 AA03 AA13 AA22 AB05 AB06 BA06A BB01A BB17A BB24A BB25A BB30A BC03A BC06A CA30 EE33 EE34 FA01 FC01 GA01

Claims (2)

[Claims] 1. A cool container for courier, wherein a container body is formed by combining a foam sheet mainly made of waste paper powder and a cardboard for reinforcing the foam sheet. 2. The container body, wherein the container body is a box body or a cylinder body formed of cardboard, and a foam sheet is attached to the inner surface of the box body or the cylinder body.
Container body formed in a box or cylinder with a sheet made by sticking thick paper and a foam sheet, and a container body in which a box or cylinder formed of a foam sheet is fitted inside a box or cylinder formed of cardboard The cool container for courier according to claim 1, which is any one of 1.