JP2009154966A - Cold insulating container for delivery - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cold insulating container for delivery of delivery articles which securely maintains a predetermined cold service temperature continuously over a long time. <P>SOLUTION: The container includes a container body 1 of a box type which has opened an upper part and a lid 2 which covers the container body each of which is made of a heat insulating material, the lid 2 includes a lid body 3 of a box type which has opened the upper part and a plate-like upper lid 4 which is assembled and attached to the upper opening section of its lid body 3 detachably by covering and is provided with a chill feeding chamber S which contains dry ice D inside. The lid body is provided with an opening 6 for ventilation which sends and feeds the chill within the chill feeding chamber to a container body side in the lower lid section 3f of the lid body is provided, and a heat conduction plate 11 made of aluminum is assembled and attached to the inner wall face 1b of the container body across a chill accumulating body 10. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cold storage container for delivery that is used when a delivery product such as frozen food is delivered together with dry ice while being cooled by courier service or the like.

  Conventionally, this type of delivery cold storage container is generally a lightweight and highly heat insulating foam box body covered with the same foamed polystyrene plate cover. In this cold storage container, the delivered product is stored together with dry ice so as to be kept at a predetermined low temperature, and is loaded on a transportation vehicle and delivered to a destination by a parcel delivery service or the like.

JP 11-79261 A

  However, conventionally, when a delivery item is stored in a cold storage container and delivered to a remote location, it is usually necessary to transfer or unload the cold storage container from a transport vehicle at a delivery / collection work shop or a transit relay shop. Each time, it is easy to be exposed to room temperature such as outside air, and there is a problem that it is difficult to reliably maintain a constant cold temperature up to the delivery destination in the conventional cold container for delivery.

  In addition, when it is necessary to temporarily store the delivery item, such as when the delivery destination is absent and returned, it is necessary to maintain the cold storage state at a constant low temperature for a long time including the storage time plus the storage time. However, in order to do so, the container body must be opened and refilled with dry ice. In this case, there is a problem that the amount of dry ice used is increased and the replenishment work is troublesome. Moreover, since the cold air escapes every time the lid is opened, there is also a problem in maintaining freshness. In addition, when supplying dry ice, there is also a problem that the delivered product is easy to touch and is unsanitary when it is a food. Furthermore, since the delivery items are stored together with the dry ice in the container body and directly cooled, the product delivery value may vary depending on where the dry ice contacts and where it does not contact. There was also a problem that harmful effects such as a decrease occurred.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, which has been a problem in the prior art, and to provide a cold storage container for delivery that maintains a predetermined cold storage temperature reliably for a long time.

  Therefore, in order to achieve the above object, the invention described in claim 1 is a box-shaped container body 1 in which the upper part made of a heat insulating material is opened as shown in the embodiment described below with reference to the drawings. And a lid 2 that covers the container body 1, and in the cold storage container A1 for storing the delivery product C while keeping it cool with the dry ice D, the lid 2 is a box-shaped lid body that opens upward. 3 and a plate-like upper lid 4 that is detachably mounted over the upper open portion of the lid main body 3, and provided with a cold air supply chamber S for storing the dry ice D therein, The lower lid portion 3f is provided with a ventilation opening 6 for supplying the cool air in the cool air supply chamber S to the container body 1 side, while the inner wall 1b of the container body 1 has a cool storage body 10 With a heat conducting plate 11 made of aluminum And characterized by being attached seen.

  The invention described in claim 2 is the delivery cold storage container according to claim 1, for example, as shown in the embodiment described below with reference to the drawings. It is characterized by covering.

  According to the present invention configured as described above, the following effects can be obtained.

  According to the first aspect of the present invention, the cold air generated from the dry ice descends from the cold air supply chamber through the ventilation opening during the transportation time from the collection of the delivery goods to the delivery, and into the container body. In the container body 1, the cool air is poured from the upper cool air supply chamber, and at the same time, the cool air generated from the cool storage body is sent to the delivery product through the heat conduction plate. Therefore, even if it is frequently exposed to room temperature during transshipment and unloading operations during delivery, the predetermined cold temperature can be maintained reliably for a long time. As a result, it is possible to keep the predetermined cool temperature as it is even if the required cool time period is extended by bringing back without the delivery destination.

  Furthermore, the lid body is configured to form a cool air supply chamber for storing dry ice so as to isolate the dry ice and the delivery product and to keep the delivery product in the container body uniformly cooled by the cool air supplied from above. Therefore, it is possible to keep the delivery product uniformly and accurately without causing problems such as uneven cooling of the delivery product between the part where the dry ice is in direct contact and the part where the dry ice is not in contact as in the prior art.

  Furthermore, even if it is necessary to replenish the dry ice exceptionally as a result of the extended period of cold insulation at the time of delivery, in that case, simply open the top lid of the lid and put in the dry ice. Therefore, dry ice can be easily replenished without much trouble. Moreover, since the container body is not opened when this dry ice is replenished, it is possible to avoid exposing the delivery product to the outside air and not to let cool air escape from the inside of the container body. As a result, the predetermined cool temperature can be maintained as it is. Can do. In addition, when dry ice is replenished, it is not necessary to touch a delivery product such as food, which is advantageous in terms of hygiene. Further, when delivering the delivery item at the delivery destination at the time of delivery, it is possible to obtain an effect that the delivery item can be easily taken out without having to wear gloves for protecting against dry ice.

  In addition, in the lid made of a heat insulating material, the lower lid portion is formed integrally with the lid main body, and the opening for ventilation is directly provided in the lower lid portion, so that a cooling effect substantially similar to that described above is obtained. In addition, the structure of the lid can be simplified, and the cost can be reduced accordingly.

  According to the second aspect of the present invention, the heat insulating cover made of resin is provided, and the cover is covered so that it can be opened and closed to cover the whole. The temperature can be reliably maintained for an even longer time.

It is a longitudinal cross-sectional view which shows the 1st example of the cold storage container for delivery by this invention. It is a perspective view which divides | segments the cold storage container for delivery of a 1st example into a container main body and a cover body. It is an assembly appearance perspective view of the 1st example. It is a perspective view which shows the 2nd example of the cold storage container for delivery by this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a longitudinal sectional view showing an example of a cold storage container for delivery according to the present invention, FIG. 2 is a perspective view showing a container body and a cover divided into two parts, and FIG. is there.

  The delivery cold storage container of this example includes a container body 1 and a lid body 2 as indicated by reference numeral A1. Among them, the container body 1 is made of a heat insulating material in the shape of an upwardly open box, and is formed with protruding engagement ribs 1a along the inner edge of the upper end surface. As the heat insulating material, for example, a lightweight and inexpensive foam material is used. Among various foamed materials, it is possible to use polystyrene foam or the like because it is light and inexpensive, but it is desirable to use a foamed polypropylene that is excellent in terms of wear resistance and impact resistance. In the illustrated example, for example, foamed polypropylene having a foaming ratio of 45 times is used as a material, and the container body 1 is manufactured in a rectangular box shape having a length of about 360 mm, a width of about 270 mm, a height of about 160 mm, and a thickness of about 30 mm.

  Further, the delivery cold storage container A1 is formed by assembling a heat conductive plate 11 made of an aluminum plate having extremely good thermal conductivity, with the cold accumulator 10 sandwiched between the inner wall surface 1b of the container main body 1. The regenerator 10 is a resin-made hollow container filled with a liquid regenerator. The regenerator 10 is formed into a thin box plate shape and has a cross-sectionally U-shape along the left and right side surfaces and the bottom surface of the inner wall of the container body 1. It is formed by bending. Then, the cool storage body 10 is attached to the left and right side surfaces and the bottom surface of the inner wall of the container body 1, and the heat conduction plate 11 that is also bent and formed into a U-shaped cross section is polymerized and integrated on the outer surface of the cool storage body 10. . In addition, although not shown in figure, the cool storage body is good to comprise so that many long grooves may be provided in the outer surface of the said hollow container, and it may shape | mold into a surface uneven | corrugated shape, and this may raise a cooling efficiency.

  On the other hand, the lid body 2 is composed of components divided into a lid body 3 and an upper lid 4. That is, the lid body 2 is formed in a box shape with a lid body 3 that is opened upward and a plate-like upper lid 4 that is detachably assembled over the lid body 3 and stores dry ice D therein. The cooling air supply chamber S is formed.

  The lid body 3 has a thickness of about 30 mm and is formed in an upward-opening rectangular bowl shape. The lid main body 3 forms convex engagement ribs 3a along the inner edge of the upper end surface, while engaging the convex stripes along the outer edge of the lower end surface. The joint rib 3b is formed. In particular, the lower lid portion 3f integrated with the lid body 3 is provided with an opening 6 for ventilating the cool air in the cold air supply chamber S to the container body 1 side.

  The upper lid 4 is formed in a rectangular flat plate shape having a thickness of about 15 mm, and is provided with protruding engagement ribs 4a corresponding to the engagement ribs 3a of the lid body 3 on the edge of the lower surface.

  Therefore, the lid body 2 is assembled in a box shape by engaging the engagement rib 4a with the engagement rib 3a and covering the upper lid 4 on the upper open portion of the lid body 3. And in this box-shaped lid 2, the cold air supply chamber S which stores dry ice D on the lower lid 3f of the main body 3 is formed.

  Now, when delivering the delivery product C, for example, an ice cream for gifts, by courier using the delivery cooler A1 having the above-described configuration, the upper lid 4 is opened and the dry ice D is placed on the lower lid portion 3f. And put in the cool air supply chamber S in advance. On the other hand, the delivery item C is put in the container body 1 at the collection destination, the engagement rib 3b is engaged with the engagement rib 1a, the lid body 2 is put on the container body 1, and the container body 1 is held for delivery. Carry cold storage container A1. Then, it is loaded onto a transportation vehicle and, for example, the delivery goods C are delivered from a collection work shop to a relay shop / delivery work shop as appropriate, to a remote delivery destination.

  At this time, in the delivery cold storage container A1, the cold air generated from the dry ice D during the transportation time from the collection of the delivery item C to the delivery is vented from the inside of the cold air supply chamber S as shown by an arrow a in FIG. And is fed into the container main body 1. At the same time, in the container body 1, cold air is poured from the upper cold air supply chamber S, and at the same time, the cold air generated from the regenerator 10 is delivered via the heat conduction plate 11 as shown by the arrow b in FIG. It is sent to product C. Therefore, even if it is frequently exposed to room temperature during transshipment and unloading operations during delivery, it is continuously maintained at a predetermined cool temperature such as -23 ° C. or lower for a long time of 24 hours or more. Is done.

  Moreover, even if it is brought back due to the absence of the delivery destination and the required period for cold insulation is further extended, the predetermined cold insulation temperature can be maintained as it is. As a result of extending the necessary period for the cooling as described above, when the dry ice D needs to be replenished exceptionally, the upper lid 4 of the lid 2 is opened and the dry ice D is put therein. At that time, since the container body 1 is not opened, the cool air is not released, and as a result, the predetermined cool temperature is still maintained. In addition, when the dry ice is replenished, the delivery product C does not need to be touched and is hygienic.

  In addition, the cool containers for delivery that are no longer needed are collected at the delivery destination without being discarded, and are collected from the delivery shop through the predetermined container stock facility, and then collected in the predetermined container cleaning facility. Reuse as a new delivery cooler.

By the way, although the cold storage container A1 for delivery described above is provided with the cool storage body 10 and the heat conduction plate 11 over the three surfaces of the left and right side surfaces and the bottom surface of the inner wall of the container body 1, the present invention is not limited to this and is also provided on the front and rear side surfaces. It is not excluded that the configuration is provided on two or one surface. The installation positions of the cold storage body 10 and the heat conductive plate 11 can be appropriately and selectively considered according to the conditions such as the cold insulation temperature and the cold insulation time.
The

  Further, in the illustrated delivery cold storage container A1, the cool storage body 10 and the heat conduction plate 11 are provided so as to overlap each other on the left and right side surfaces and the bottom surface of the inner wall of the container body 1. However, in the present invention, the heat conductive plate 11 may be provided on the same three surfaces, while the regenerator 10 may be provided only on the bottom surface.

  Now, it is preferable that the delivery cold storage container described above includes a heat insulating cover 15 as shown in FIG. 4, for example, and covers the entire surface by covering the heat insulating cover 15. The illustrated heat insulating cover 15 is made of a resin such as polyester and vinyl chloride having a soft heat insulating property, and is formed into a box bag shape according to the shape of the box-shaped container, and can be opened and closed by attaching fasteners 16 to corners thereof. Formed. In addition, Velcro (registered trademark) 17 is affixed to the front cover portion 15a in the drawing for fastening the upper cover portion 15b. Reference numeral 18 in the figure denotes a carrying handle. Therefore, in the delivery cold storage container of the illustrated example, the predetermined cold insulation temperature can be reliably maintained for an even longer time by covering with the heat insulating cover 15 and blocking the outside air for delivery.

  In the illustrated embodiments described above, a box-shaped delivery cold storage container having a square outer shape is shown and described. However, the present invention is applicable to other polygonal box shapes, for example, depending on the delivery item to be transported. Of course, the present invention can also be applied to the case of forming various other box shapes such as a cylindrical box shape. Furthermore, although the delivery slip etc. may be affixed to the cold storage container for delivery of the present invention, in order to make it easy to peel off the sticking material, a part of the container surface is subjected to embossing, and the height is about 1 mm. It is preferable that a large number of protrusions be provided.

DESCRIPTION OF SYMBOLS 1 Container main body 2 Lid body 3 Lid main body 3f Lower lid part 4 Upper lid 6 Venting opening 10 Cool storage body 11 Thermal conduction plate 15 Heat insulation cover A1 Cooling container C for delivery D Delivery ice D Dry ice S Cold air supply chamber

Claims (2)

Each is composed of a box-shaped container main body made of a heat insulating material and a lid body that covers the container main body, and in the cold storage container for delivery while storing the delivery product with dry ice,
The lid body is formed by a box-shaped lid body having an open top and a plate-like top lid that is detachably assembled over the lid body, and stores the dry ice therein. And providing an opening for ventilation for supplying the cool air in the cold air supply chamber to the container body side in the lower lid portion of the lid body,
A delivery cold storage container characterized in that an aluminum heat conduction plate is assembled on the inner wall surface of the container main body with a regenerator interposed therebetween.   The cold storage container for delivery according to claim 1, wherein the whole is covered with a heat insulating cover made of resin so as to be opened and closed.

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