JP4903831B2 - Cooling container for delivery - Google Patents

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 insulation 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 dry ice D, the lid body 2 includes a frame plate-shaped lid body 3 and an upper lid. 4 and the lower lid 5 are detachably divided into three parts, and the lower lid 5 is fitted into a step portion 3e formed on a lid receiving rib protruding along the lower edge of the inner wall surface of the lid body 3. 4 is placed on the lid body 3 so that a cold air supply chamber S with a space filled with cold air is formed around the dry ice D which is placed on the lower lid 5 and accommodated therein. assembly, the lower cover 5 is made of aluminum of the heat conduction plate While it formed on the inner wall surface 1b of the container body 1, assembled aluminum heat conduction plate 11 in between the cold storage body 10, bent in a direction opposed to the upper end of the heat conduction plate 11 fold When the bent plate part 11a is formed and the container body 1 is covered with the lid 2, the heat conducting plate of the lower lid 5 and the bent plate part 11a are in contact with each other. .

The invention according to claim 2 is the delivery cold insulation container A1 according to claim 1 , for example, as shown in the embodiment described below with reference to the drawings, covering the resin heat insulating cover 15 so that it can be opened and closed. and wherein the Rukoto, such as to cover the whole.

The invention described in claim 3 is, for example, a box-shaped container main body 20 having an open top made of a foam heat insulating material and a lid covering the container main body 20 as shown in the embodiment described below with reference to the drawings. In the cool storage container A5 configured to hold the delivery product C while being cooled with dry ice D, the lid body 21 is divided into a box-shaped middle lid 22 and an upper lid 23 that are opened upward. The lower lid portion of the inner lid 22 is composed of an aluminum heat conduction plate 35, and the heat conduction plate 35 is projected along the lower edge of the inner wall surface of the inner lid 22 and is a plate receiving rib 25c. On the other hand, by covering the inner lid 22 with the upper lid 23, the heat conductive plate 35 of the lower lid part partitions the space between the container body 20 and the inside of the lower lid part. Cool around the dry ice D placed on top Together but form a cool air supply chamber S of perforated filled to space them inner cover 22 and upper cover 23 and the container body 20, the outer casing of the outer shape corresponding to each of the foam insulation 24, 25, 26 27, 28 · to fit with the structure 29, the inner lid 22 relative to the container body 20 by connecting to each other through a hinge means 30, while freely individually opening and closing the upper cover 23 relative to middle cover 22, the container body 20, the foam insulation 24 is interposed a slight gap on the joint surface with respect to the outer case 27 with fitted with, made by forming an air layer d airtightly between the said foam insulation 24 exterior case 27 It is characterized by that.

The invention according to claim 4 is the cold-reserving container A5 for delivery according to claim 3 , for example, as shown in an embodiment described below with reference to the drawings, the hinge means 30 is connected to the container body 20 and the container The middle lid 22 and the upper lid 23 are each provided with a string hooking portion 49, and a string member 50 spanned between the string hooking portions 49 is coupled to be configured.

  The invention according to claim 5 is the delivery insulated container A5 according to claim 3 or 4, for example, as shown in the embodiment described below with reference to the drawings, the foam insulation 24 of the container body 20 A guide groove 24c for guiding cool air descending from the cool air supply chamber S is provided on the inner wall surface.

The invention described in claim 6 is the delivery cooler container A5 according to claim 3, 4 or 5 , for example, as shown in the embodiment described below with reference to the drawings. The fasteners 39 for stopping the lid 22 and the fasteners 40 for stopping the upper lid 23 with respect to the inner lid 22 can be detachably attached, and can be replaced. It is characterized by identifying the type of C.

  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 heat conduction plate of the lower lid during the transportation time from the collection of the delivery goods to the delivery, and the container body At the same time, the cool air generated from the regenerator in the container body is sent to the delivery product through the heat conduction plate, so it is often used during transshipment and unloading operations during delivery. Even if it is exposed to room temperature, the predetermined cold temperature can be maintained more reliably by continuing for a longer time. In addition, the lower lid is a heat conduction plate made of aluminum, and from the top, the structure is configured to apply cold air to the delivery product indirectly through the heat conduction of the cold heat. The delivered product can be well kept cold without being adversely affected.

  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.

  In addition, even if it is necessary to replenish dry ice exceptionally as a result of frequent extension of the cold insulation period at the time of delivery, it is possible to simply open the lid and put dry ice in that case. 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 , when the lid is placed on the container body, the lower lid side of the lid body and the heat conduction plate in the container body partly contact each other. It is transmitted to the heat conduction plate, and the cooling effect can be improved by cooling the delivery product in the container body efficiently.

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.

According to the invention described in claim 3 , during the transportation time from the collection of the delivery item to the delivery, the cold air generated in the dry ice descends from the cold air supply chamber along the heat conduction plate and enters the container body. In addition, in the container body, because it is a configuration that keeps cold from entering by preventing the intrusion of heat from outside by the condenser effect due to the air layer between the foam insulation and the outer case, Even if it is often exposed to room temperature during unloading work, it can continue to be maintained for a long time to reliably maintain a predetermined cold temperature. As a result, even if the required cold insulation period is further extended by carrying back in the absence of a delivery destination, the predetermined cold insulation temperature can be maintained as it is. As a result of the extended period of cooling required in this way, even if dry ice may need to be replenished exceptionally, only the top lid of the lid can be opened and dry ice can be placed. Is not released, so that the cool air is not escaped, and as a result, the predetermined cool temperature can still be maintained. Moreover, when supplying dry ice, it is not necessary to touch the delivery items such as foods, which is advantageous in terms of hygiene.

In addition, according to the third aspect of the present invention, since the inner lid, the upper lid, and the container main body are fitted to the outer case of the outer shape corresponding to each foam heat insulating material, the outside air is doubled. The airtightness is improved by shutting off, and the predetermined cold insulation temperature can be reliably maintained for a longer time. On the other hand, it is less likely to be damaged and is more resistant to impact, so that the durability can be further improved.

According to the invention of claim 4 , when covering the container body with the lid, and when covering the upper lid with respect to the middle lid, the lid and the upper lid can be moved freely by the amount of loosening the string member, The foamed heat insulating material and the outer case can be engaged with each other in the vertical direction without loosening, thereby improving the sealing performance as a cold storage container. Further, the impact of the string member can be easily absorbed, and the risk of breakage can be reduced as compared with a normal hinge. Furthermore, the protruding portion of the hinge structure can be reduced, and the entire container can be made compact accordingly.

According to the invention described in claim 5 , the cold air poured into the container main body from the cold air supply chamber can be guided downward as it is in the guide groove, and the cold air can be uniformly fed around the delivery product. Therefore, it is possible to further improve the cooling effect by cooling the delivery product within the container body.

According to the invention described in claim 6 , by replacing the fastener with a different color according to the type of the delivery product to be transported, the delivery product can be easily and reliably identified at a glance without mistaking the delivery product. Can do.

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. It is a longitudinal cross-sectional view which shows the 3rd example of the cold storage container for delivery by this invention. It is an external appearance perspective view which shows the cold storage container for delivery of the 3rd example. It is a longitudinal cross-sectional view which divides | segments a container main body into a foaming heat insulating material and an exterior case. It is a perspective view which shows the foam heat insulating material in a container main body. It is a perspective view which decomposes | disassembles and shows each foam heat insulating material of a container main body, an inner cover, and an upper cover. It is a longitudinal cross-sectional view which divides | segments an inner cover into a foaming heat insulating material and an exterior case. It is a longitudinal cross-sectional view which divides | segments an upper cover into a foaming heat insulating material and an exterior case. It is a front view which shows the fastener side of the cold storage container for delivery of the 3rd example. It is a perspective view of a fastener. It is a rear view which shows the hinge side of the cold storage container for delivery of the 3rd example.

  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 component parts divided into a lid body 3, an upper lid 4 and a lower lid 5. That is, the frame plate-shaped lid body 3 and the upper lid 4 and the lower lid 5 that are detachably assembled to the top and bottom of the lid body 3 are formed in a box shape, and a cold air supply chamber S for storing the dry ice D is formed therein. To be configured.

  The lid body 3 is formed in the shape of a rectangular frame plate with a thickness of about 30 mm using the same heat insulating material as that of the container body 1, for example, the above-mentioned expanded polypropylene, and the protruding rib engaging rib 3a is formed along the inner edge of the upper end surface. On the other hand, a protruding engagement rib 3b is formed along the outer edge of the lower end surface. Further, the inner wall surface 3c is provided with a convex lid receiving rib along the lower edge in the figure.

  The upper lid 4 is formed in the shape of a rectangular flat plate having a thickness of about 15 mm using the same heat insulating material as that of the container main body 1, for example, the above-mentioned foamed polypropylene, and a convex strip corresponding to the engaging rib 3a of the lid main body 3 on the lower edge. The engaging rib 4a is provided.

  On the other hand, the lower lid 5 is formed of a heat conductive plate made of a rectangular aluminum plate. Therefore, a step 3e is formed on the lid receiving rib of the lid body 3 in accordance with the outer shape of the heat conduction plate, and the heat conduction plate is fitted into the step 3e to form the lower lid 5.

  In this cold storage container A1, the upper end portion of the heat conducting plate 11 on the container body 1 side is bent in a direction facing each other to form a bent plate portion 11a, and the container body 1 is covered with the lid body 2. In this case, the heat conduction plate of the lower lid 5 and the heat conduction plate 11 on the container body 1 side are in contact with each other. Thereby, the cool air on the lower lid 5 side is also transmitted to the heat conduction plate 11 on the container body 1 side, and the delivery product C in the container body 1 can be cooled efficiently.

  Therefore, the lid 2 is placed on the lid receiving rib by fitting the lower lid 5 into the stepped portion 3e of the lid main body 3, while the engagement rib 4a is engaged with the engagement rib 3a. An upper lid 4 is placed on the top, and the whole is assembled in a box shape. And in this box-shaped cover body 2, the cool air supply chamber S which stores the dry ice D on the lower cover 5 is formed.

  Now, when delivering the delivery item C, for example, a gift ice cream or the like 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 5. Place it in the cold 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 cool storage container A1, the cool air generated from the dry ice D is transported from the cool air supply chamber S to the lower lid as shown by an arrow a in FIG. The heat conduction plate 5 descends and is fed into the container 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 travels through the heat conduction plate 11 as indicated by an arrow b in FIG. It is sent from three sides toward the delivery item C. Therefore, even if the delivery cooler container A1 is often exposed to room temperature during transshipment or unloading operations during delivery, it continues for a long period of 24 hours or longer, for example, -23 ° C or It is maintained at a predetermined low temperature below that.

  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.

  In addition, in the cold storage container A1 for delivery, the cool storage body 10 and the heat conduction plate 11 are provided over the three surfaces of the left and right side surfaces and the bottom surface of the inner wall of the container body 1, but the present invention is not limited to this, Alternatively, the configuration provided on some two or one side is not excluded. 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.

  By the way, this invention can be set as a respectively different structure as shown in FIGS. 4-14, for example instead of the cold storage container A1 for delivery mentioned above. In addition, in the other cool storage containers exemplified below, the same components as those in the cool delivery container A1 will be described with the same reference numerals.

  The above-described delivery cold storage container is preferably provided with a heat insulating cover 15 as shown in FIG. 4, for example, and covered with the heat insulating cover 15 to cover the whole. 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.

  Now, in the illustrated embodiment described above, in the cold storage container for delivery, the whole is covered with a box bag-like heat insulating cover, but the present invention has a rigid rigidity as shown in the following embodiment. It can also be set as the structure reinforced by covering with the resin exterior case. The structure of the cold storage container A5 for delivery of other examples is shown in FIGS.

  As shown in FIGS. 5 and 6, a delivery cold storage container A5 of another example shown in FIG. 5 divides the lid 21 for the container body 20 into an inner lid 22 and an upper lid 23, and the inner lid 22, the upper lid 23, and the container The main body 20 has a structure in which all of the foam heat insulating materials 24, 25, and 26 made of polypropylene and the outer case 27, 28, and 29 corresponding to them are fitted and reinforced, and the airtightness is improved. Yes. Then, they are connected to each other by hinge means 30 having a well-known hinge structure, and an inner lid 22 is attached to the container main body 20 and an upper lid 23 is attached to the inner lid 22 so as to be opened and closed individually.

  The container body 20 is formed by integrally molding the foam heat insulating material 24 and the outer case 27 into an upwardly open box shape. As shown in FIGS. 7 to 8, one foam heat insulating material 24 is formed to be thick like the above-described example, and provided with convex engagement ribs 24 a on the upper end surface in a frame shape, The part is made to be one step thicker outward, and a bump step 24b is formed there. On the other hand, a large number of cool air guide grooves 24c are provided on the inner wall surface from the opening edge to the bottom surface. Further, the same inner wall surface is provided with a delivery product extracting recess 24d having a width that allows a finger to enter from above.

  The outer case 27 of the container body 20 is provided with an engaging portion 27a having a protrusion upward at the upper end portion. Then, the foam heat insulating material 24 is press-fitted and fitted into the outer case 27 to form the container body 20 as shown in FIG. 5, and between the joint surface of the foam heat insulating material 24 and the outer case 27, the abutting step 24 b A slight gap is interposed by the height of, and an airtight air layer d is formed there. The air layer d is formed to be narrow (for example, 2 to 3 mm), and has a structure that prevents convection in the layer and improves heat insulation.

  The inner lid 22 of the lid 21 is formed by integrally molding the foam heat insulating material 25 and the outer case 28 into a rectangular frame shape. As shown in FIGS. 9 and 10, one foam heat insulating material 25 is formed to be thick like the above-described example, and a protruding engagement rib 25 a is provided in a frame shape on the inner edge of the upper end surface. The engaging groove 25b is provided on the lower end surface, and the protruding plate receiving rib 25c is provided along the lower edge of the inner wall surface in the figure. Then, as shown in FIG. 10, an aluminum heat conduction plate 35 is mounted on the plate receiving rib 25c and assembled. The heat conduction plate 35 may be provided with a large number of ventilation holes through which cool air passes.

  The outer case 28 of the inner lid 22 is provided with an engaging portion 28a having a concave groove downward at the lower end portion, and provided with a protruding engagement protrusion 28b at the upper end portion. Then, the foam heat insulating material 25 is press-fitted and fitted into the outer case 28 to form the inner lid 22 as shown in FIG.

  The upper lid 23 integrally forms the foam heat insulating material 26 into a thick rectangular disk shape as shown in FIG. 9, while the exterior case 29 is opened downward according to the shape of the foam heat insulating material 26 as shown in FIG. It is integrally molded into a rectangular thin box. The foam heat insulating material 26 is provided with an engagement groove 26a corresponding to the engagement rib 25a of the foam heat insulating material 25 of the inner lid 22 on the lower surface in the drawing. The outer case 29 is provided with an engaging groove 29 a corresponding to the engaging protrusion 28 b of the outer case 28 of the inner lid 22 at the opening edge of the lower end portion. Then, the foam heat insulating material 26 is press-fitted and fitted into the outer case 29 to form the upper lid 23 as shown in FIG.

  Therefore, in the state of use, the delivery cold storage container A5 rotates the inner lid 22 of the lid body 21 with respect to the container body 20 via the hinge means 30, and engages with the engagement ribs 24a of the foam heat insulating materials 24 and 25. The concave groove 25b is engaged, and the engaging portions 27a and the engaging portions 28a of the exterior cases 27 and 28 are engaged and covered with an uneven fit. Further, the upper lid 23 is rotated with respect to the inner lid 22 via the hinge means 30 to engage the engaging ribs 25a of the foamed heat insulating materials 25 and 26 with the engaging concave grooves 26a, and to engage the outer cases 28 and 29. The mating protrusions 28b and the engaging grooves 29a are engaged with each other with an uneven fit and covered. At this time, between the outer cases 27, 28, and 29, the engaging portion 27a and the engaging portion 28a, and the engaging protrusion 28b and the engaging groove 29a are engaged with each other with a concave and convex fit, so that the case strength is increased accordingly. It is connected with good airtightness in a state where is raised. The container body 20 and the lid body 21 are hermetically sealed, while the lid body 21 and the container body 20 are partitioned by a heat conduction plate 35, and dry ice D is placed on the heat conduction plate 35 in the lid body 21. A cold air supply chamber S is formed to store and store the air.

  In this use state, the delivery cooler container A5 has two fasteners 39 and 39 for fastening the inner lid 22 to the container body 20 on the front side opposite to the hinge means 30 as shown in FIG. The fastener 40 having the same structure as the upper lid 23 is attached to the inner lid 22.

  In the illustrated example, the fasteners 39 and 40 include a pair of upper and lower stopper plate pieces 41 and 42 made of, for example, black resin. Among them, the top stopper plate piece 41 has a rectangular shallow bottom cap shape as shown in FIG. 13, and has a rotation shaft portion 41a on one side thereof, and a convex piece-like hook on the opposite side of the rotation shaft portion 41a. A portion 41b is provided. The other bottom plate 42 has a rectangular plate shape, and has a rotation shaft portion 42a on one side thereof, and a pair of bearing recess portions 42b are provided near both ends of the rotation shaft portion 42a. . The fasteners 39 and 40 are detachably fitted into the bearing recesses 42b of the lower stopper plate piece 42 so that the rotation shaft portion 41a of the upper stopper plate piece 41 is detachable, and both the stopper plate pieces 41 and 42 are rotatably connected to each other. It has a structure.

  On the other hand, as shown in FIG. 12, the outer case 27 on the side to which the fasteners 30 and 40 are attached has a pair of horizontally long shafts having shaft insertion recesses 27b along the longitudinal direction on the left and right in the figure on the upper front side. The latching protrusions 27c and 27c are provided. The outer case 28 of the inner lid 22 is provided with a pair of plate-like convex portions 28d and 28d having latching concave portions 28c on the upper side in the figure at positions corresponding to the latching projections 27c, and further between the plate-like convex portions 28d. A latching projection 28f having a shaft fitting recess 28e along the longitudinal direction is provided on the center upper side of the. The outer case 29 of the upper lid 23 is provided with a plate-like convex portion 29c having a latching concave portion 29b on the upper side in the figure at a central position corresponding to the latching projection 28f. The fasteners 39 and 39 are rotatably attached to the container body 20 by removably fitting the rotation shaft portion 42a of the lower stopper plate piece 42 in the shaft fitting recess 27b of the latching protrusion 27c. The fastener 40 is rotatably attached to the inner lid 22 by removably fitting the rotation shaft portion 42a of the lower stopper plate piece 42 into the shaft fitting recess 28e of the latching projection 28f. In addition, as shown in FIG. 6, the outer cases 27 to 29 are provided with protrusions 48 for protectors that prevent breakage of the fasteners on both sides of the fasteners 39 and 40.

  Then, the fasteners 39 and 39 respectively cover the container body 20 with the inner lid 22 by fitting the upper stopper plate piece 41 to the plate-like convex portion 28d and engaging the hook portion 41b with the latching concave portion 28c. Lock in an airtight state. The fastener 40 is locked in an airtight state in which the upper lid 23 is covered with the inner lid 22 by fitting the upper stopper plate piece 41 to the plate-like convex portion 29c and engaging the hook portion 41b with the latching concave portion 28b. .

  Therefore, when the delivery product C, for example, an ice cream for gifts is delivered by courier using the delivery cold storage container A5 having the above-described configuration, the upper plate 41 of the fastener 40 is attached to the plate-like convex portion 29c. The upper lid 23 is rotated and opened, and the dry ice D is placed on the heat conduction plate 35 and placed in the cold air supply chamber S in advance as shown in FIG. In consideration of the cost, the dry ice D may be placed in contact with the heat conductive plate 35 so as to be superposed on the heat conductive plate 35 and placed in contact with the surface to reduce the surface area. Then, the upper lid 23 is closed, and the fastener 40 is hermetically locked to the inner lid 22.

  On the other hand, at the collection destination, the upper stopper plate piece 41 of the fasteners 39 and 39 is removed from the plate-like convex portion 28 d, the lid body 21 is rotated and opened, and the delivery product C is put into the container body 1. After that, the lid body 21 is closed and put on the container body 20, and the container body 20 is airtightly locked with the fasteners 39 and 39. Then, the container body 20 is held and the delivery cold storage container A5 is carried. 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 A5, the cold air generated in the dry ice D during the transportation time from the collection of the delivery item C to the delivery passes through the heat conduction plate 35 from the cold air supply chamber S as shown by an arrow in FIG. Then, it descends and is fed into the container body 20. At that time, near the inner wall surface of the container body 20, the cooling air is guided by the large number of guide grooves 24 a so that the cold air is poured evenly around the delivery product C.

  Moreover, in the container body 20, the condenser effect by the air layer d between the foam heat insulating material 24 and the outer case 27 prevents the intrusion of heat from the outside, keeps the cold at a low temperature, and maintains a high cold insulation performance. Therefore, in the cold storage container A5, even if it is frequently exposed to room temperature during transshipment and unloading operations during delivery, it continues for a long time of 24 hours or more, for example, -23 ° C or It can be maintained at a predetermined low temperature below that.

  Further, similarly to the above, even if it is brought back due to the absence of the delivery destination and the necessary period for the cold insulation is further extended, the predetermined cold insulation temperature can be maintained as it is. As a result of extending the period of necessary cooling as described above, when the dry ice D needs to be replenished exceptionally, only the upper lid 23 of the lid 21 is opened and the dry ice D is inserted. At that time, since the container body 20 is not opened, the cool air is not released, and as a result, the predetermined cool temperature is still maintained. Moreover, when the dry ice is replenished, it is not necessary to touch the delivery product C and it is hygienic.

  By the way, the above-described delivery cold storage container A5 is provided with fasteners of different colors according to the type of delivery items for transportation. And the fastener which differs according to the kind of delivery goods to transport is comprised, and it has the structure which identifies the stored delivery goods. Accordingly, in the illustrated example, the black fasteners 39 and 40 for identifying that the delivery product C is ice cream are attached. However, when transporting a delivery product of a different type from the ice cream, the fastener 39 is used. • 40 can be removed and replaced with a corresponding different color fastener. Thereby, the difference of a delivery item can be easily identified at a glance by the color of the fastener.

  Further, in the above-described delivery cold storage container A5, the fasteners 39 and 40 are attached to the front side opposite to the hinge means 30, but instead, the same fasteners are attached to the left and right side surfaces to seal the container. It is also possible to make a structure that increases the fitting strength.

  In addition, in the above-described delivery cold storage container A5, the hinge means 30 is preferably configured as shown in FIG. 14, for example. The hinge means 30 in the illustrated example is provided with a string hanging portion 49 on the outer case 27, 28, and 29 of the container body 20, the inner lid 22, and the upper lid 23, respectively, and the string member 50 is hung between the string hanging portions 49. It has a structure. As the string member 50, for example, a belt-like body is used, and the string hooking portion 49 is formed by forming a through hole through which the string member 50 is inserted. The string member 50 is fastened in an annular shape with one end slackened to the string hooking portion 49 of the upper lid 23, and the other end side of each of the inner lid 22 and the string hooking portion 49 of the container body 20. It passes through the through hole, and the edge is folded back and secured with screws. The string body 50 connects the container body 20, the inner lid 22, and the upper lid 23 to each other so that the container body 20 is rotatable, and the lid body 21 is opened with respect to the container body 20, and the upper lid 23 is opened and closed with respect to the inner lid 22. The strap 49 may be configured by using a separate strap fitting having a strap hole and attaching it to the exterior cases 27, 28, and 29.

  Therefore, in the delivery cold storage container A5, since the hinge means 30 has a hinge structure using the string member 50 as described above, when the container body 20 is covered with the lid body 21, the upper lid 23 is attached to the inner lid 22. When covering, the lid 21 and the upper lid 23 can be freely moved by the amount of loosening of the string member 50, so that the foam insulation and the exterior case can be engaged with each other without looseness in the vertical direction. As a result, the airtightness of the container can be improved. Further, the impact of the string member 50 is easily absorbed by the flexibility of the string member 50, thereby reducing the possibility of damage as compared with a normal hinge. In addition, the protruding portion of the hinge structure can be reduced, and the entire container can be made compact accordingly.

  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.

1.20 Container body 2.21 Lid body 3. Lid body 4.23 Upper lid 5. Lower lid (cool storage body, heat conduction plate)
DESCRIPTION OF SYMBOLS 10 Cold storage body 11 * 35 Heat conduction board 11a Bending board part 15 Heat insulation cover 22 Inner cover 24 * 25 * 26 Foam heat insulating material 24c Guide groove 27 * 28 * 29 Outer case 30 Hinge means 39 * 40 Fastener 49 Strap part 50 Cord members A1 and A5 Delivery cooler container C Delivery item D Dry ice S Cold air supply chamber d Air layer (gap)

Claims (6)

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 is
A frame plate-shaped lid body and an upper lid and a lower lid are detachably divided into three parts, and the lower lid is fitted into a step formed on a lid receiving rib projecting along the lower edge of the inner wall surface of the lid body. By assembling the upper lid on the lid body, it is assembled into a box shape in which a cold air supply chamber with a space filled with cold air is formed around the dry ice stored on the lower lid .
While the lower lid is formed of a heat conductive plate made of aluminum,
On the inner wall surface of the container body, an aluminum heat conduction plate is assembled with a regenerator interposed therebetween, and a bent plate portion bent in a direction facing each other is formed at the upper end portion of the heat conduction plate, and the container A cold storage container for delivery , wherein the heat conducting plate of the lower lid and the bent plate portion are in contact with each other when the main body is covered with the lid . 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. Each is composed of a box-shaped container main body made of foamed heat insulating material and a lid that covers the container main body, and in the cool storage container for storing the delivery product while keeping it cool with dry ice,
The lid is
The upper lid is divided into a box-shaped inner lid and an upper lid that are open at the top. The lower lid of the inner lid is made of an aluminum heat conduction plate, and the heat conduction plate is placed under the inner wall of the inner lid. While placing on the plate receiving rib projecting along the edge, by covering the upper lid on the inner lid, the heat conduction plate of the lower lid part partitions the space between the container body and the inside And forming a cool air supply chamber with a space filled with cool air around the dry ice to be placed on the lower lid portion and stored ,
And said container body and lid and upper lid in them a structure which attached fitted to the outer casing of the outer shape corresponding to each of the foam insulation, the inner lid relative to the container body by connecting with each other in the hinge means, while freely individually opening and closing the upper lid to the inner lid,
The container body, characterized in that the foam heat-insulating material is interposed a slight gap on the bonding surface with respect to the outer case attach fitting, obtained by forming an air layer airtightly between the said foam insulation case member A cold storage container for delivery. Said hinge means, to the container body and the inner-lid and the top lid, each provided with a string hooking portion, and characterized by being constituted by combining the string member passed over between these cord hook, wherein Item 4. A cold storage container for delivery according to Item 3 . The delivery cold storage container according to claim 3 or 4 , wherein a guide groove for guiding cool air descending from the cool air supply chamber is provided on an inner wall surface of the foam heat insulating material of the container body. While the fastener that stops the inner lid with respect to the container body and the fastener that stops the upper lid with respect to the inner lid can be detachably attached and replaced, the colors of the fasteners are different, The cold storage container for delivery according to claim 3, 4 or 5 , wherein the type is identified.

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