JP2005280728A - Cold insulation storage box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problem that a conventional cold insulation storage box is bulky and expensive since a lid consists of a separate member since a side plate is double-structured by folding to overlap an external face plate and an internal face plate. <P>SOLUTION: A cold insulation storage box 1 includes a left side plate 105 and a right side plate 107 with high heat insulation performance since there are pneumatic layers in spaces of plates 11, 23, 15, 41, 17 and 51 constituting a front side plate 103, the left side plate 105 and the right side plate 107. In addition, leading end surfaces of contact pieces 71a, 73a, 75a and 77a of an inner fitting body 7 come into contact with overlap pieces 43 and 53 of a rear side plate 109. Thus, a space is formed between them and a rear side 113 of the inner fitting body 7, resulting in a pneumatic layer present in this space. Therefore, a part corresponding to the rear side plate 109 has high heat insulation performance. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a cold storage box, and more particularly to a cold storage box made of paperboard such as cardboard.

At present, styrene foam boxes are frequently used as containers for transporting refrigerated and frozen foods. However, since the polystyrene box is not easily regenerated, disposal after use has become a problem. Therefore, a cold insulation storage box described in Patent Document 1 can be considered, and this cold insulation storage box has approximately the same degree of cold storage as a cold storage container made of styrene foam and is made of paperboard so that it can be easily regenerated. Has advantages.
The cold storage container described in Patent Document 1 has a double structure in which the four side plates of the box main body are folded so that the outer surface plate portion and the inner surface plate portion overlap each other in order to obtain cold storage performance.

JP 2003-192047 A

However, since the cold insulation storage box described in Patent Document 1 has a double structure by folding the side plate so that the outer surface plate portion and the inner surface plate portion overlap each other, the lid body is constituted by another member. For this reason, not only will it become bulky, but it will take time to assemble and increase the cost.
The present invention has been made paying attention to the above-described problems, and an object thereof is to provide a low-cost and compact cool-keeping storage box that ensures sufficient cool-keeping performance.

  The present invention has been made to solve the above-mentioned problems, and the invention of claim 1 is directed to a box body whose upper surface is open, a lid body that covers the opening of the box body, and an internal fit accommodated in the box body. A cold storage container in which the box body, the lid body, and the inner fitting body are made of paperboard, the inner fitting body is in contact with at least an inner surface of the side plate constituting the box body, and the side plate A cold insulation storage box, characterized in that a contact piece for creating a space is provided between the inner surface of the housing and the inner fitting body.

  According to a second aspect of the present invention, in the cold insulation storage box according to the first aspect, the box body includes a bottom portion and four side plates connected to the bottom portion, and three of the four side plates have a space. It is configured in a double structure having two plate portions that are opened and opposed to each other, the remaining one is not formed by the double structure but is formed by a single plate portion, and the lid body is a single plate portion. The cold storage container is characterized in that the contact piece of the inner fitting body is in contact with the inner surface of the side plate continuous with the lid body.

  According to a third aspect of the present invention, there is provided the cold storage container according to the second aspect, wherein the bottom, the side plate, and the lid are formed of a continuous sheet of paperboard.

  The invention of claim 4 is the cold insulation storage box according to any one of claims 1 to 3, wherein the heat insulating sheet is attached to the lid in a state where the heat insulation sheet can be easily peeled off. It is.

  The invention of claim 5 is the cold insulation storage box according to any one of claims 1 to 4, wherein a heat insulating sheet is provided at least between the bottom plate of the box main body and the inner fitting body. It is a sex storage box.

  A sixth aspect of the present invention is the cold insulation storage box according to any one of the first to fifth aspects, wherein the paperboard is cardboard or cardboard.

  The cold storage container of the present invention is made of paperboard that can be easily reused, can ensure sufficient cold storage performance, can be easily assembled, and can be manufactured at low cost and in a compact manner.

A cold storage container 1 according to Embodiment 1 of the present invention will be described with reference to the drawings.
The cold insulation storage box 1 includes a box body 5 having a cardboard cover 3 as a paperboard, an inner fitting 7 and the like. The cardboard constituting the box body 5 and the inner fitting body 7 is subjected to water repellent finish.
The box body 5 is assembled by folding the corrugated cardboard cut into a plan view shape shown in FIG. 2 at a folding portion indicated by a one-dot chain line. The box body 5 has a rectangular bottom plate 9, and rectangular plate portions 11, 13, 15, and 17 are connected to four sides of the bottom plate 9, respectively. Reinforcing portions 19, 21, 22, and 25 are continuously formed on the pair of short sides of the plate portions 11, 13, 15, and 17, respectively.

A plate portion 23 is connected to the plate portion 11 via a connecting portion 20, and superposed pieces 27 and 29 are continuously formed on a pair of short sides of the plate portion 23. An installation piece 31 is formed on the long side of the plate portion 23. A rectangular insertion hole 33 is formed in the plate portion 11. The plate portion 23 is formed with an insertion hole 35 and a pair of “U” -shaped cut portions 37.

A plate portion 41 is connected to the plate portion 15 via a connecting portion 39. The polymer piece 43 is continuously formed on one short side of the plate portion 41, the convex part 42 is formed on the other short side, and the installation piece 45 is continuously formed on the long side. Yes. The plate portion 41 is formed with a “U” -shaped cutout portion 47.
A plate portion 51 is connected to the plate portion 17 via a connecting portion 49. A polymer piece 53 is continuously formed on one short side of the plate portion 51, a convex part 52 is formed on the other short side, and an installation piece 55 is continuously formed on the long side. Yes. In addition, a “U” -shaped cutout 57 is formed in the plate portion 51.
The plate portion 15, the connecting portion 39, the plate portion 41, the overlap piece 43, the installation piece 45 and the cut portion 47, and the plate portion 17, the connection portion 49, the plate portion 51, the overlap piece 53, the installation piece 55 and the cut portion 57. It has a line-symmetric shape.

  A lid 61 is connected to the plate part 13 via a connection part 59. The lid body 61 is provided with an insertion piece 63. A plastic heat insulating sheet 62 is affixed to the lid 61. The heat insulating sheet 62 is held by the adhesive surfaces 64 formed at the four corners of the lid 61, but can be easily peeled off by being pulled by hand and can be separated from the lid 61.

  The inner fitting body 7 is assembled by bending the cardboard cut into a substantially rectangular plan view shape shown in FIG. 3 at a bent portion indicated by a one-dot chain line. At one end in the longitudinal direction of the inner fitting body 7, a “U” -shaped cut portion 66 is formed. Further, the inner fitting body 7 is formed with a pair of “U” -shaped cut portions 67, 69, 71, 73, 75, 77, and a large cut portion 79 between the cut portions 75 and 77. Is formed. Further, “L” -shaped cut portions 81 and 83 are formed between the plate portion 23 and the polymer pieces 27 and 29.

The box body 5 is assembled by folding the developed view shown in FIG. 2 along the folding line as described above (see FIGS. 1 and 4), and the inner fitting body 7 is similarly assembled (see FIG. 1).
When the box body 5 is assembled, the plate portion 11 and the plate portion 23, the plate portion 15 and the plate portion 41, the plate portion 17 and the plate portion 51 are opposed to each other with a space therebetween, and an air layer is formed in these spaces. It will be. The front plate 103 is constituted by the plate portions 11 and 23 and the connecting portion 20 which are opposed to each other with a space therebetween, and the left side plate 105 is constituted by the plate portions 15 and 41 and the connecting portion 39 which are opposed to each other by opening a space. The left side plate 107 is constituted by the plate portions 17 and 51 and the connecting portion 49 which are opposed to each other with a space therebetween. Further, the rear plate 109 is constituted by the plate portion 13 and the polymer pieces 43 and 53.

  The installation pieces 31, 45, and 55 are installed on the bottom plate 9, and the portions surrounded by the pair of cut portions 37, the cut portions 47, and the cut portions 57 are raised to become support pieces 37a, 47a, and 57a. The pair of support pieces 37a abut on the inner surface of the plate portion 11, the support piece 47a abuts on the plate portion 15, and the support piece 57a abuts on the plate portion 17. Further, the superposed pieces 43 and 53 abut against the plate portion 13. Further, the convex portion 42 of the plate portion 41 and the convex portion 52 of the plate portion 51 are fitted into the notches formed by the portions surrounded by the cut portions 81 and 83 being raised.

  Further, when the inner fitting body 7 is assembled, a portion surrounded by the notches 67, 69, 66 is caused to form insertion pieces 67a, 69a, 66a, and further, the notches 71, 73, 75, 77, 79 are formed. The enclosed portion is raised to form contact pieces 71a, 73a, 75a, 77a, 79a.

Next, the usage method of this cold storage container 1 is demonstrated.
First, after the heat insulating sheet 101 is provided on the bottom plate 9 of the assembled box body 5, the inner fitting body 7 is accommodated in the box body 5. Then, the insertion piece 66a is inserted into the insertion hole 35, and the insertion pieces 67a and 69a are inserted into the holes formed by raising the support pieces 37a. Thereby, the inner fitting body 7 is accommodated in the box main body 5 in a fixed state.
An object to be collected such as refrigerated food (not shown) in the accommodation space 8 surrounded by the inner fitting body 7 is accommodated, the lid body 61 is closed, and the insertion piece 63 is inserted into the insertion hole 33 to fix the lid body 61. Further, the space between the lid 61 and the opening on the upper surface of the box body 5 is closed with an adhesive tape as necessary.

  In the cool box 1, since the air layer exists in the space of the plate portions 11, 23, 15, 41, 17, 51 constituting the front side plate 103, the left side plate 105 and the right side plate 107 as described above, the left side plate 105 and the right side plate 107 have high heat insulation performance. Moreover, since the heat insulating sheet 101 is provided on the bottom plate 9 and the bottom portion 111 of the inner fitting body 7 is disposed with the heat insulating sheet 101 interposed therebetween, a so-called triple structure is provided and high heat insulating performance is achieved.

Further, the front end surfaces of the contact pieces 71 a, 73 a, 75 a, 77 a of the inner fitting body 7 come into contact with the overlapping pieces 43, 53 of the rear side plate 109. Thereby, a space is formed between the rear side portion 113 of the inner fitting 7 and an air layer exists in this space. Accordingly, the portion corresponding to the rear side plate 109 has high heat insulating performance.
Further, the contact piece 79 a contacts the heat insulating sheet 62 attached to the lid 61. Thereby, a space is formed between the inner fitting body 7 and the upper surface portion 115, and an air layer exists in this space. Accordingly, the portion corresponding to the lid 61 has high heat insulating performance due to the presence of the air layer and the heat insulating sheet 62.
Since the box body 5 is composed of the bottom 9, the side plates 11, 13, 15, 17, 23, 41, 51, the lid 3 and the like by a single cardboard, the number of gaps is small and air circulation is suppressed. In addition, water leakage can be prevented.

As described above, since all of the six surfaces of the cold insulating storage box 1 have high heat insulating performance, it is possible to cool the object to be stored for a long time.
Moreover, since the box body 5 and the internal fitting 7 are made of cardboard, they can be easily recycled. Further, since the heat insulating sheet 62 can be easily peeled off from the lid body 61, it can be separated from the box body 5 and discarded. Moreover, the heat insulating sheets 62 and 101 not only exhibit the heat insulating performance, but also function as cushions that effectively prevent the contained objects from being damaged.
A thing similar to the heat insulating sheet 101 may be provided between the upper surface portion 115 of the inner fitting body 7 and the lid body 61, and the heat insulating sheet 101 may be further provided inside the inner fitting body 7. Further, the heat insulating sheet 101 may be wound around the inner fitting body 7.
Of course, the heat insulating sheet 101 is not only installed and provided to the box body 5 and the inner fitting 7 but may be attached.
As a result, the heat insulation performance is further improved and the cushion performance is improved.
When opening the cold insulation storage box 1 and taking out the object to be stored, the lid 61 is opened, a finger is inserted from the notch 65 of the inner fitting body 7 and the upper surface portion 115 is hung and lifted. Open the upper surface 115.

A cold insulation storage box 121 according to a second embodiment of the present invention will be described with reference to the drawings.
The cold insulation storage box 121 includes a cardboard box body 123, an internal fitting 125, and the like. The cardboard constituting the box body 123 and the inner fitting 125 is subjected to water repellent finish.

The box body 123 is a JISZ1507-0201 type corrugated cardboard box, and is provided with four side plates 135, 137, 139, 141, and closures provided continuously at the upper and lower ends of these side plates 135, 137, 139, 141, respectively. It consists of pieces 145, 147, 149, 151. The closing pieces 145, 147, 149, 151 are closed to the four plates provided at the lower ends of the side plates 135, 137, 139, 141 to form the bottom portion 143. Further, a lid body is constituted by the four closing pieces 145, 147, 149, 151 provided on the upper end portions of the side plates 135, 137, 139, 141, and the opening 153 on the upper surface is covered by the lid body.

  As shown in FIG. 7, the inner fitting 125 has a long and substantially rectangular shape when unfolded, and has an insertion piece 129 having an insertion hole 127 at one end and a notch 128 at the other end. ing. In addition, six “L” -shaped cut portions 131 are formed in the inner fitting body 125, and the cut portions 131 reach the side edges from both ends in the width direction of the inner fitting body 125, and are aligned in the longitudinal direction. Yes. Further, three “U” -shaped cut portions 133 are formed in the inner fitting body 125, and the cut portions 133 are provided in the center of the inner fitting body 125 in the width direction and are arranged in the longitudinal direction.

  The inner fitting body 125 is bent at a bending portion indicated by a one-dot chain line, and the insertion piece 129 is inserted into the insertion hole 127 and assembled. When the inner fitting 125 is assembled, as shown in FIG. 6, a portion surrounded by the “L” -shaped cut portion 131 is caused to form six contact pieces 131 a, and the “U” -shaped cut portion is formed. A portion surrounded by the portion 133 is raised to form three contact pieces 133a. Two contact pieces 131a are arranged at the upper and lower ends of the three corners of the assembled inner fitting 125, and the contact pieces 133a are arranged at the middle part in the vertical direction of the two contact pieces 131a. An insertion piece 129 protruding from the insertion hole 127 is located at the remaining one corner of the assembled inner fitting 125. A contact piece 159 is also formed at a portion protruding forward from the insertion piece 129.

  The contact pieces 131a and 159 protrude in the front-rear direction (the short width direction of the assembled inner fitting 125). Further, the contact piece 133a and the insertion piece 129 that also functions as the contact piece protrude in the left-right direction (the longitudinal direction of the assembled inner fitting 125).

Next, the usage method of this cold storage container 121 is demonstrated.
After the bottom portion 143 of the box body 123 is formed, the bottom portion 143 is provided with a heat insulating sheet 161. Next, the inner fitting 125 is provided on the heat insulating sheet 161. The contact pieces 131a and 159 of the inner fitting 125 are in contact with the inner surface of the side plate 135 of the box body 123, the contact piece 131a is in contact with the inner surface of the side plate 137, and the contact piece 133a is in contact with the inner surface of the side plate 141. The pieces 133a and 129 are in contact with the inner surface of the side plate 139. Therefore, a space is opened between the side plates 135, 137, 139, 141 and the inner fitting body 125, and an air layer exists (see FIGS. 8 and 9).
And the to-be-contained objects, such as refrigerated food, are provided in the accommodation space 162 surrounded by the internal fitting body 125. Further, another heat insulating sheet 163 is provided on the inner fitting body 125, and then the lid body including the closing pieces 145, 147, 149, 151 is closed and fixed with an adhesive tape.

In the cold insulation storage box 121, as described above, an air layer exists in the space between the side plates 135, 137, 139, 141 and the inner fitting body 125, and the bottom 143 and the portion corresponding to the lid body are insulated. Sheets 161 and 163 are respectively disposed. Thus, since all the six surfaces of the cold insulating storage box 1 have high heat insulating performance, the temperature of the object to be stored can be kept cold for a long time. In addition, since the box body 123 and the inner fitting 125 are made of cardboard, they can be easily recycled.
The box body 123 according to the second embodiment is a JISZ1507-0201 type box as described above, and has an advantage that there is almost no waste when the cardboard base paper is cut and manufactured.

The embodiment of the present invention has been described in detail above. However, the specific configuration is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention, it is included in the invention. .
For example, in the above embodiment, the box body and the inner fitting are made of corrugated cardboard. However, the present invention is not limited to corrugated cardboard as long as it is a recyclable paperboard, and may be made of cardboard.

It is a disassembled perspective view of the cold storage container which concerns on Example 1 of this invention. It is an expanded view of the box main body which comprises the cold insulating accommodation box which concerns on Example 1 of this invention. It is an expanded view of the internal fitting body which comprises the cold insulating accommodation box which concerns on Example 1 of this invention. It is a perspective view which shows the state in the middle of the assembly of the box main body which comprises the cold insulating accommodation box which concerns on Example 1 of this invention. It is sectional drawing cut | disconnected in the front-back direction of the cold storage container which concerns on Example 1 of this invention. It is a disassembled perspective view of the cold storage container which concerns on Example 2 of this invention. It is an expanded view of the internal fitting body which comprises the cold insulating accommodation box which concerns on Example 2 of this invention. It is sectional drawing cut | disconnected in the left-right direction of the cool storage container which concerns on Example 2 of this invention. It is sectional drawing cut | disconnected in the front-back direction of the cool storage container which concerns on Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Cold storage container 3 Cover body 4 Opening 5 Box main body 7 Inner fitting body 8 Storage space 9 Bottom plate 11, 13, 15, 17, 41 Plate part 19, 21, 22, 25 Reinforcement part 20, 39, 49, 59 Connection Part 27, 29 Polymerization piece Installation piece 31
33, 35 Insertion hole 37 Cut part 23, 41 51 Plate part 42, 52 Convex part 43, 53 Superposition piece 45, 55 Installation piece 47, 57 Cut part 61 Cover body 62 Thermal insulation sheet 63 Insertion piece 64 Adhesive surface 65 Notch 66 67, 69, 71, 73, 75, 77, 79, 81, 83 Notches 66a, 67a, 69a Insertion pieces 71a, 73a, 75a, 77a, 79a Contact pieces 37a, 47a, 57a Support pieces
DESCRIPTION OF SYMBOLS 101 Thermal insulation sheet 103 Front side plate 105 Left side plate 107 Right side plate 109 Rear side plate 111 Bottom part 113 Rear side part 115 Upper surface part 121 Cold storage container 123 Box body 125 Inner fitting 127 Insertion hole 128 Notch part 129 Insertion piece 131, 133 Notch Part 135, 137, 139, 141 Side plate 131a, 133a, 159 Contact piece 143 Bottom part 145, 147, 149, 151 Closure piece 153 Opening 161, 163 Thermal insulation sheet 162 Housing space

Claims (6)

  A box body having an upper surface opened, a lid that covers the opening of the box body, and an inner fitting accommodated in the box body, wherein the box body, the lid, and the inner fitting are constituted by paperboard. In the storage box, the inner fitting body is provided with a contact piece that makes contact with at least the inner surface of the side plate constituting the box body and creates a space between the inner surface of the side plate and the inner fitting body. Features a cool storage box. 2. The cold insulation storage box according to claim 1, wherein the box body has a bottom portion and four side plates connected to the bottom portion, and three of the four side plates open two spaces and face each other. The remaining one is not a double structure but a single plate, and the lid is continuous with a side plate formed by a single plate. The cold insulation storage box, wherein the contact piece of the inner fitting body is in contact with the inner surface of the side plate continuous with the lid body.   The cold storage container according to claim 2, wherein the bottom, the side plate, and the lid are constituted by a single continuous paperboard. The cold storage container according to any one of claims 1 to 3, wherein the heat insulating sheet is attached to the lid so that the heat insulating sheet can be easily peeled off.   The cold storage container according to any one of claims 1 to 4, wherein a heat insulating sheet is provided at least between the bottom plate of the box body and the internal fitting. 6. The cold storage box according to claim 1, wherein the paperboard is cardboard or cardboard.

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