JP6603120B2 - Cold storage container - Google Patents

Description

  The present invention relates to a cold storage container.

  Conventionally, a polystyrene foam container used as a fish box or the like is known (see, for example, Patent Document 1 below). The polystyrene foam container described in Patent Document 1 is provided with at least a bottom wall and a side wall, a drain hole is provided in the bottom wall or the lower part of the side wall, and the drain hole opening portion of the container is closed with a thin wall and molded. Occasionally, the thin wall is broken so that a drain hole can be opened.

  According to Patent Document 1, when cooling is desired during transportation or the like, the drain hole opening is closed to eliminate communication between the inside of the container and the outside air, preventing the ice packed inside from being melted by the outside air, and keeping the cooling effect Can be maintained. And when drainage is needed, the thin wall can be damaged and the water accumulated in the container can be discharged.

Utility Model Registration No.3054360

  The styrofoam container described in Patent Document 1 cannot discharge the water accumulated in the container until the thin wall is damaged and the drain hole is opened. Therefore, when ice is packed in a container together with contents such as fresh fish, the ice melts and water accumulates inside the container, and the contents may be immersed in water. For example, depending on the type of merchandise that is the content, such as Fuefukidai, the merchandise value may decrease when immersed in water.

  In addition, in order to prevent water from accumulating inside the container, if a thin wall is damaged in advance and a drain hole is opened, warm air flows from the drain hole into the container to promote melting of ice. The ice packed in the container disappears in a shorter time. When the ice packed in the container disappears, not only does the appearance of the product as the content worsen, but the temperature of the content may rise and the product value may decrease.

  The present invention has been made in view of the above problems, and can prevent the contents from being immersed in water, and can keep ice packed with the contents for a longer time. The purpose is to provide a container.

  In order to achieve the above object, the cold storage container of the present invention is a cold storage container for storing the contents together with ice, the storage section for storing the contents and the ice, the ice and the water in which the ice is melted. A water ice storage part in which water is stored, a drainage part at the bottom of the housing part having a drain hole for discharging the water, and a partition wall that partitions the water ice storage part and the drainage part. Features.

  In the cold storage container of the present invention, the contents are stored together with ice in the storage portion inside the container, and ice is stored in the water ice storage portion inside the container. The ice stored in the storage unit and the water ice storage unit melts to become water over time, but the melted ice in the storage unit drains water from the drainage unit at the bottom of the storage unit. It is discharged outside through the hole. Therefore, in the accommodating part, water is not stored, only ice remains, and the contents can be prevented from being immersed in water.

  On the other hand, the water in which the ice in the water ice storage part has melted is stored in the water ice storage part together with the remaining ice. Therefore, in the water ice storage unit, ice and water are mixed and stored, and the ice is in a state of water ice immersed in water at approximately 0 ° C. Therefore, even if warm air enters the inside of the container from the drain hole of the housing portion, the inside of the container can be effectively cooled by water ice, and the temperature rise of the contents can be suppressed.

  In addition, by storing the melted ice in the water ice storage unit, the specific heat of water ice as a refrigerant stored in the water ice storage unit is compared with the case where water is discharged and only ice is stored. Can be increased. Therefore, it is possible not only to improve the appearance of the contents, but also to improve the commercial value by suppressing the temperature rise of the contents. be able to.

  Moreover, the cold storage container of this invention may be provided with the box body by which upper part was open | released, and the cover body which obstruct | occludes the opening part of the upper part of this box body. In this case, the box body has the accommodating portion and the water ice storage portion inside, the bottom portion has the drainage portion, and the water ice storage portion has the opening of the box body opened. In the state, the upper part may be opened. As a result, with the lid on the top of the box removed and the opening at the top of the box open, the contents are placed in the container inside the box, and ice is stored in the container and the water ice reservoir. After that, the opening of the box can be closed with a lid. Therefore, the contents and ice can be stored in the storage part of the cold storage container, and the ice can be easily stored in the water ice storage part.

  In the cold storage container of the present invention, the housing part and the upper part of the water ice storage part may communicate with each other in a state where the opening of the box is closed by the lid. Thereby, the warm air which flowed into the inside of a container from the drain hole of the drainage part of the bottom part of a storage part moves to the upper part of a storage part, and moves to the upper part of a water ice storage part. Further, the air cooled by the water ice stored in the water ice storage part moves from the upper part of the water ice storage part to the accommodation part, and further moves to the bottom part of the accommodation part. Therefore, the storage unit can be effectively cooled by the air cooled in the water ice storage unit, and the temperature rise of the contents of the storage unit can be more effectively suppressed.

  Moreover, the cold storage container of this invention WHEREIN: It is preferable that the said water ice storage part is provided adjacent to the wall surface of the said box. As a result, the heat that enters the inside of the container through the wall surface of the box can be absorbed more for a longer time by the water ice in the water ice storage section having a larger specific heat than in the case of ice alone. it can. Therefore, the heat which reaches | attains a accommodating part via the wall surface of a box can be interrupted over a longer time, and the temperature rise of a accommodating part can be suppressed more effectively.

  Moreover, the cold storage container of this invention can have the said several water ice storage part. More specifically, for example, a pair of water ice storage units are arranged along a pair of long side surfaces of a rectangular parallelepiped box, or a plurality of water ice storage units are enclosed so as to surround the storage unit arranged in the center part. Or a water ice storage part can be arranged at the four corners of a rectangular box. Thereby, the heat | fever which reaches | attains an accommodating part via the wall surface of a box can be interrupted | blocked more appropriately in a wider range according to the space of a box, and the shape and magnitude | size of a content.

  Moreover, the cold storage container of the present invention can have a plurality of partition walls having different heights. Thereby, for example, the height of the partition wall can be varied according to the shape and size of the contents, and the space of the accommodating portion can be increased. In addition, the volume of the plurality of water ice storage parts can be different, the heat reaching the housing part through the wall surface of the box, depending on the space inside the box and the shape and size of the contents, It can be blocked more appropriately.

  Moreover, the cold storage container of this invention WHEREIN: The said partition may be provided integrally with the said box. Thereby, it is prevented that a partition falls from a cold storage container, and the movement of the water between a storage part and a water ice storage part can be controlled more reliably.

  Moreover, the cold storage container of this invention WHEREIN: The said partition may be installed in the said box so that removal is possible. In this case, the position and number of the partition walls can be flexibly changed according to the space inside the box and the size and shape of the contents, and the cold storage container can be used for various purposes.

  As described above, according to the cold container of the present invention, the contents can be prevented from being immersed in water, and the ice packed together with the contents can be left for a longer time.

The perspective view of the cold storage container which concerns on Embodiment 1 of this invention. Sectional drawing of the cold storage container along the II-II line | wire shown in FIG. The top view of the box body of the cold storage container shown in FIG. Sectional drawing of the cold storage container which concerns on Embodiment 2 of this invention. FIG. 5 is a plan view of a box body of the cold storage container shown in FIG. 4. The top view of the box of the cold storage container which concerns on Embodiment 3 of this invention. The perspective view of the cold storage container which concerns on Embodiment 4 of this invention. FIG. 8 is a plan view of a box body of the cold storage container shown in FIG. 7.

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

[Embodiment 1]
FIG. 1 is a perspective view of a cold insulation container 1 according to Embodiment 1 of the present invention. FIG. 2 is a cross-sectional view of the cold insulating container 1 along the line II-II shown in FIG. FIG. 3 is a plan view of the box 10 of the cold insulation container 1 shown in FIG.

  The cold storage container 1 of this embodiment is the cold storage container 1 which accommodates content FF, such as fresh fish, with ice BI, for example. The cold insulation container 1 includes a storage unit 11 in which the contents FF and the ice BI are stored, a water ice storage unit 12 in which water in which the ice BI and ice BI are melted is stored, and water that discharges water in which the ice BI is melted. It is characterized by comprising a drainage portion 13 at the bottom of the accommodating portion 11 having a punched hole 13 a and a partition wall 30 that partitions the water ice storage portion 12 and the drainage portion 13.

  More specifically, the cold insulation container 1 according to the present embodiment includes a box body 10 whose upper part is opened, and a lid body 20 that closes the opening 10 a at the upper part of the box body 10. The box 10 has the accommodating part 11 and the water ice storage part 12 in the inside, and has the drainage part 13 in the bottom part. The water ice storage unit 12 is opened in the state where the opening 10 a of the box 10 is opened, and can accommodate the ice BI from the opening 10 a of the box 10.

  As a material of the box 10 and the lid 20, for example, a foamed resin can be used. Examples of the foamed resin include polystyrene, styrene-modified polyolefin resin, high impact polystyrene, styrene-ethylene copolymer, styrene-maleic anhydride copolymer, styrene-acrylonitrile copolymer and other polystyrene resins, polyethylene, Foams of various synthetic resins such as polyolefin resins such as polypropylene and ethylene-vinyl acetate copolymer, and polyester resins such as polyethylene terephthalate can be used.

  In the cold insulation container 1 of the present embodiment, the accommodating portion 11 is a space inside the box body 10, and not only a space above the drainage portion 13 partitioned by the partition wall 30 but also a space above the water ice storage portion 12. Is included. Moreover, in the cold insulation container 1 of this embodiment, the water ice storage part 12 is demarcated by the inner bottom face 10b and the wall face 10w of the box 10, and the side face 31 of the partition wall 30, and has a substantially rectangular parallelepiped shape. It is the space inside.

  In the cold insulation container 1 of the present embodiment, the height 30 h of the partition wall 30 is lower than the height 10 h from the bottom surface 10 b inside the box body 10 to the lower surface of the lid body 20. Thereby, a gap is formed between the lower surface of the lid body 20 and the upper end portion of the partition wall 30, and the housing portion 11 and the water ice storage portion 12 are in a state where the opening portion 10 a of the box body 10 is closed by the lid body 20. The upper part of is in communication. The height 30 h from the inner bottom surface 10 b of the box body 10 to the upper end of the partition wall 30 is, for example, about 30% to 80% of the height 10 h from the inner bottom surface 10 b of the box body 10 to the lower surface of the lid body 20. Can be

  The height 30 h of the partition wall 30 may be equal to the height 10 h from the inner bottom surface 10 b of the box body 10 to the lower surface of the lid body 20. In this case, the upper end portion of the partition wall 30 is in contact with the lower surface of the lid body 20, and the storage unit 11 and the water ice storage unit 12 are isolated by the partition wall 30. However, even in this case, for example, by providing a through hole in the upper part of the partition wall 30, the opening part 10 a of the box body 10 is closed by the lid body 20, and the upper part of the storage part 11 and the water ice storage part 12. Can be communicated.

  In the cold insulating container 1 of the present embodiment, the water ice storage unit 12 is provided adjacent to the wall surface 10 w of the box 10. More specifically, the box 10 has a rectangular parallelepiped shape having a long side wall 14 and a short side wall 15, and has a partition wall 30 that faces the wall surface 10 w of the long side wall 14 with a space therebetween. The partition wall 30 is provided substantially perpendicularly to the bottom wall 16 of the box body 10, and extends between the pair of short side walls 15 along the wall surface 10 w of the long side wall 14 in parallel with the long side wall 14. And the water ice storage part 12 formed between the side surface 31 of the partition 30 and the wall surface 10w of the long side wall 14 is extended between the pair of short side walls 15 along the wall surface 10w of the long side wall 14, and is long. The side wall 14 is provided adjacent to the wall surface 10w.

  The cold insulation container 1 of the present embodiment has a pair of water ice storage units 12 adjacent to the wall surfaces 10 w of the pair of long side walls 14 of the box 10. Thus, the cold insulation container 1 can have a plurality of water ice storage units 12 according to the space inside the box 10 and the shape and size of the contents FF stored in the storage unit 11. In addition, the water ice storage part 12 is not limited to multiple, A single may be sufficient.

  Further, in the cold insulation container 1 of the present embodiment, the drainage portion 13 at the bottom of the housing portion 11 is a part of the bottom surface 10 b inside the box body 10. That is, the drainage portion 13 is a portion between the pair of partition walls 30 on the bottom surface 10 b inside the box body 10 partitioned by the pair of partition walls 30. The drainage part 13 has a drain hole 13 a provided in the bottom wall 16 of the box 10. The drainage unit 13 mainly discharges water from which the ice BI of the storage unit 11 has melted to the outside of the box body 10 through the drain hole 13a. In addition, the drainage unit 13 also discharges the overflowed water when the ice BI in the storage unit 11 above the water ice storage unit 12 melts and the water stored in the water ice storage unit 12 overflows into the drainage unit 13. It discharges to the exterior of the box 10 through the drain hole 13a.

  The ratio S1: S2 between the area S1 of the drainage section 13 and the area S2 of the water ice storage section 12 on the bottom surface 10b of the box 10 can be set, for example, between 5: 5 and 8: 2. The position, shape, size, number, and the like of the drain holes 13a in the drainage unit 13 can prevent the contents FF stored in the storage unit 11 from being immersed in water, and the temperature of the storage unit 11 Is not particularly limited as long as it can be maintained at a low temperature. In the cold insulation container 1 of the present embodiment, the drainage section 13 is inclined such that the vicinity of one short side wall 15 is lower than the vicinity of the other short side wall 15, and two drain holes 13 a are formed at the lowest part. have.

  Further, in the cold insulation container 1 of the present embodiment, the partition wall 30 is provided integrally with the box body 10. That is, when the foamed resin box 10 is formed, the pair of partition walls 30 are integrally formed with the box 10. Therefore, in the cold insulation container 1 of the present embodiment, the partition wall 30 is made of the same foamed resin as the box body 10 and the lid body 20.

  Hereinafter, the operation of the cold container 1 of the present embodiment will be described.

  The cold storage container 1 of this embodiment is a container which accommodates the contents FF, such as fresh fish, with the ice BI as mentioned above. The cold storage container 1 of the present embodiment includes a storage unit 11 that stores the contents FF and ice BI, a water ice storage unit 12 that stores water in which the ice BI and ice BI are melted, and a drain that discharges water. A drainage portion 13 at the bottom of the accommodating portion 11 having a hole 13a, and a partition wall 30 that partitions the water ice storage portion 12 and the drainage portion 13 are provided.

  In order to accommodate the content FF such as fresh fish in the inside of the cold container 1 together with the ice BI, first, the content FF such as fresh fish is accommodated in the accommodation unit 11 and then the accommodation unit 11 and the water ice storage unit 12 from above. Contains ice BI. Or after accommodating ice BI in the accommodating part 11 and the water ice storage part 12, the contents FF, such as a fresh fish, are accommodated in the accommodating part 11, and also ice BI is accommodated in the accommodating part 11 from it. At this time, a water-absorbing sheet may be laid on the accommodating portion 11, and the content FF such as fresh fish may be disposed thereon.

  Here, the cold insulation container 1 of the present embodiment includes a box body 10 whose upper part is opened, and a lid body 20 that closes the opening 10 a at the upper part of the box body 10. And the box 10 has the accommodating part 11 and the water ice storage part 12 inside, has the drainage part 13 in the bottom part, and the water ice storage part 12 is the state by which the opening part 10a of the box 10 was open | released And the top is open.

  Thereby, with the lid 20 at the top of the box 10 removed and the opening 10a at the top of the box 10 opened, the contents FF are placed in the storage 11 inside the box 10, and the storage 11 and the water ice reservoir 12 can be filled with ice BI, and the opening 10a of the box 10 can be closed with the lid 20. Therefore, it is possible to easily store the ice BI together with the contents FF such as fresh fish in the storage unit 11 of the cold storage container 1 and store the ice BI in the water ice storage unit 12.

  As described above, the ice BI stored in the storage unit 11 of the cold storage container 1 and the water ice storage unit 12 melts with time and becomes water, but the water in which the ice BI of the storage unit 11 melts is stored. The water is discharged from the drainage portion 13 at the bottom of the portion 11 to the outside through a drain hole 13a. Therefore, in the accommodating part 11, water is not stored but only ice BI can remain | survive and it can prevent that content FF, such as a fresh fish, is immersed in water. Thereby, it can prevent that the merchandise value of the contents FF whose merchandise value falls when it is immersed in water like a Fukiedai, for example, falls.

  On the other hand, the water in which the ice BI in the water ice reservoir 12 has melted is stored in the water ice reservoir 12 together with the remaining ice BI. Therefore, in the water ice storage unit 12, the ice BI and water are mixed and stored, and the ice BI is in a state of water ice immersed in water at approximately 0 ° C. Therefore, even if warm air enters the inside of the cold insulation container 1 from the drain hole 13a of the accommodating part 11, the inside of the cold insulation container 1 can be effectively cooled by water ice, and the temperature rise of the contents FF is increased. Can be suppressed.

  Further, by storing the water in which the ice BI is melted in the water ice storage unit 12, water as a refrigerant stored in the water ice storage unit 12 is compared with the case where the water is discharged and only the ice BI is stored. The specific heat of ice can be increased. Therefore, the ice BI packed together with the contents FF in the inside of the cold container 1 can be left more for a long time, and not only the appearance of the contents FF such as fresh fish can be improved, but the contents The product value can be improved by suppressing the temperature rise of the FF.

  Moreover, the cold storage container 1 of this embodiment has the accommodating part 11 and the upper part of the water ice storage part 12 in communication with the opening 10 a of the box 10 closed by the lid 20. Therefore, the warm air that has flowed into the container from the drain hole 13 a of the drainage unit 13 at the bottom of the storage unit 11 moves to the top of the storage unit 11 and moves from the storage unit 11 to the top of the water ice storage unit 12. The air cooled by the water ice stored in the water ice storage unit 12 moves from the upper part of the water ice storage unit 12 to the storage unit 11, and further moves to the bottom of the storage unit 11. Therefore, the accommodating part 11 can be effectively cooled by the air cooled in the water ice storage part 12, and the temperature rise of the content FF of the accommodating part 11 can be suppressed more effectively.

  Further, in the cold insulation container 1 of the present embodiment, the water ice storage unit 12 is provided adjacent to the wall surface 10 w of the box 10. Therefore, the heat that enters the inside of the cold storage container 1 through the wall surface 10w of the box 10 is longer than the ice BI by the water ice in the water ice storage unit 12 having a large specific heat compared to the case of only the ice BI. More can be absorbed. Therefore, the heat which reaches the accommodating part 11 via the wall surface 10w of the box 10 can be interrupted for a longer time, and the temperature rise of the accommodating part 11 can be more effectively suppressed.

  In general, fresh fish has a total length from the head to the tail that is longer than the total width from the back to the belly. Therefore, when the fresh fish is accommodated in the accommodating portion 11 of the rectangular parallelepiped box 10, for example, the head and tail of the fresh fish are directed toward the short side wall 15 and the back and the stomach are accommodated toward the long side wall 14. Therefore, by providing the water ice storage part 12 adjacent to the wall surface 10w of the long side wall 14 of the box 10, the water ice storage part 12 is provided in a wider area of the wall surface 10w of the box 10, and the water ice storage part 12 is provided. It is possible to effectively cool the head and tail of fresh fish by the water ice stored in the water.

  In addition, the cold container 1 of the present embodiment has a plurality of water ice reservoirs 12. Thereby, the heat | fever which reaches | attains the accommodating part 11 via the wall surface 10w of the box 10 can be interrupted | blocked more appropriately in a wider range according to the space of the box 10, and the shape and magnitude | size of the contents FF. it can. For example, when the fresh fish is accommodated in the accommodating portion 11 of the rectangular parallelepiped box 10, the water stored in the water ice reservoir 12 is provided by providing the pair of water ice reservoirs 12 along the pair of long side walls 14. Ice makes it possible to cool the fresh fish from head to tail effectively from both sides of the belly and back.

  Further, in the cold insulation container 1 of the present embodiment, the partition wall 30 is provided integrally with the box body 10. Thereby, it is prevented that the partition 30 falls off from the cold storage container 1, and the movement of the water between the accommodating part 11 and the water ice storage part 12 can be controlled more reliably.

  Moreover, in the cold storage container 1 of this embodiment, ratio S1: S2 of the area S1 of the drainage part 13 in the bottom face 10b of the box 10 and the area S2 of the water ice storage part 12 is, for example, 5: 5 to 8: 2. Can be set between. Thereby, not only can the volume of the storage unit 11 necessary for storing the contents FF be sufficiently secured, but also the volume of the water ice storage unit 12 that can leave ice for a longer time than before. It can be secured sufficiently.

  As described above, according to the cold container 1 of the present embodiment, the content FF such as fresh fish can be prevented from being immersed in water, and the ice BI packed together with the content FF can be kept for a longer time. It can be left over. Therefore, not only can the appearance of the content FF such as fresh fish be improved, but also the commercial value can be improved by suppressing the temperature rise of the content FF.

[Embodiment 2]
Next, Embodiment 2 of the cold insulation container of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a cross-sectional view of the box 10A of the cold insulating container 1A according to Embodiment 2 of the present invention. FIG. 5 is a plan view of the box 10A of the cold insulating container 1A shown in FIG. 4 is a cross-sectional view of the cold storage container 1A along the line IV-IV in FIG.

  The cold insulation container 1A of the present embodiment has a plurality of partition walls 30 having different heights, and the plurality of partition walls 30 are provided in a plurality of annular shapes on the bottom wall 16 of the box 10A, and are partitioned by the innermost partition wall 30. This is different from the cold insulation container 1 of the first embodiment described above in that a part of the bottom surface 10b on the inner side of the box 10A is the drainage part 13 at the bottom of the housing part 11. Since the other points of the cold insulating container 1A of the present embodiment are the same as those of the cold insulating container 1 of the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

  1 A of cold storage containers of this embodiment have the some water ice storage part 12 divided by the some partition 30 from which height differs. The height of the partition wall 30 is lowered as it is closer to the drainage part 13 at the bottom of the housing part 11, and is made higher as it is closer to the wall surface 10w of the side wall 14A of the box 10A. Thereby, the capacity | capacitance of the some water ice storage part 12 is large, so that it is close to the wall surface 10w of the side wall 14A of the box 10A.

  The accommodating portion 11 has the highest height above the drainage portion 13 inside the innermost partition 30 located at the center of the bottom surface 10b of the box 10A, and is adjacent to the wall surface 10w on the side wall of the box 10A. Above the outermost water ice reservoir 12 and the partition wall 30, the height is the lowest. Thereby, the accommodating part 11 has a comparatively big space in the center part of 10 A of box bodies.

  According to the cold insulating container 1A of the present embodiment, the water in which the ice BI of the storage unit 11 has melted is discharged from the drainage unit 13 at the bottom of the storage unit 11 as in the cold storage container 1 of the first exemplary embodiment. It is discharged to the outside through the water drain hole 13 a or stored in the water ice storage unit 12. Accordingly, it is possible to prevent the content FF such as fresh fish stored in the storage unit 11 from being immersed in water, and the ice BI packed together with the content FF can be left for a longer time.

  Moreover, 1 A of cold storage containers of this embodiment can increase the quantity of the water ice stored by the several water ice storage part 12 being provided in multiple. In addition, the water ice in the inner water ice reservoir 12 can be kept cold by the water ice in the outer water ice reservoir 12, and the ice BI packed together with the contents FF can be left for a longer time. .

  Moreover, 1 A of cold storage containers of this embodiment have the some partition 30 from which height differs, and according to the shape and magnitude | size of the content FF accommodated in the accommodating part 11, the water ice storage part 12 of FIG. The accommodating part 11 of a required magnitude | size can be formed upwards. In general, fresh fish has a thin back and belly and a thick middle part between the back and belly. Accordingly, for example, the height of the partition wall 30 at the center of the bottom surface 10b of the box body 10A is lowered and the height of the partition wall 30 at the outer edge portion of the bottom surface 10b of the box body 10A is increased corresponding to the shape of the fresh fish. Therefore, the volume of the water ice storage part 12 can be increased while ensuring a space necessary for accommodating the contents FF in the accommodation part 11.

[Embodiment 3]
Next, Embodiment 3 of the cold insulation container of the present invention will be described with reference to FIG. FIG. 6 is a plan view of the box 10B of the cold insulation container 1B according to Embodiment 3 of the present invention. In addition, illustration of the cover body 20 is abbreviate | omitted in FIG.

  The cold insulation container 1B of the present embodiment is different from the cold insulation container 1 of the first embodiment described above in that the water ice storage part 12 is provided at the corner of the bottom surface 10b of the rectangular parallelepiped box 10B. Since the other points of the cold insulation container 1B of the present embodiment are the same as those of the cold insulation container 1 of the first embodiment, the same parts are denoted by the same reference numerals and description thereof is omitted.

  According to the cold insulation container 1B of the present embodiment, the water in which the ice BI of the storage unit 11 has melted is discharged from the drainage unit 13 at the bottom of the storage unit 11 as in the cold storage container 1 of the first exemplary embodiment. It is discharged to the outside through the water drain hole 13 a or stored in the water ice storage unit 12. Therefore, the contents FF such as fresh fish can be prevented from being immersed in water, and the ice BI packed together with the contents FF can be left for a longer time.

  Moreover, the water ice storage part 12 is arrange | positioned in the corner | angular part which becomes easy to become a dead space inside the rectangular parallelepiped box 10B. Therefore, the drainage part 13 can be widely used without effectively reducing the volume of the water ice storage part 12 by effectively using the space inside the box 10B, and the drainage part at the bottom of the storage part 11 13 and the contents FF such as fresh fish can be easily disposed above the upper side.

[Embodiment 4]
Next, Embodiment 4 of the cold insulation container of the present invention will be described with reference to FIGS. FIG. 7 is a perspective view of a cold insulating container 1C according to Embodiment 4 of the present invention. FIG. 8 is a plan view of the box 10C of the cold insulating container 1C shown in FIG.

  The cold insulation container 1C of the present embodiment is the above-described Embodiment 1 in that the partition wall 30 that partitions the water ice storage unit 12 and the drainage unit 13 at the bottom of the storage unit 11 is detachably installed in the box 10C. This is different from the cold storage container 1. Since the other points of the cold insulating container 1C of the present embodiment are the same as those of the cold insulating container 1 of the above-described first embodiment, the same portions are denoted by the same reference numerals and description thereof is omitted.

  In the cold container 1C of the present embodiment, a partition wall 30 that divides the water ice storage unit 12 and the drainage unit 13 at the bottom of the storage unit 11 is detachably installed in the box 10C. More specifically, a groove 17 is provided in the inner wall surface 10w of the long side wall 14 and the bottom wall 16 of the box body 10C, and the lower end portion and both side end portions of the rectangular partition wall 30 are fitted into the groove 17. ing. By this partition wall 30, the box body 10 </ b> C is partitioned into the ice / ice storage part 12 in which the ice BI and the water in which the ice BI is melted is stored, and the drainage part 13 at the bottom of the storage part 11 having the drain hole 13 a. Yes.

  Further, the box 10C has a plurality of rectangular box-shaped inner boxes 40 arranged on the inner bottom surface 10b. The inner box 40 has a bottom wall 41 and a side wall 42, and is formed in a bottomed rectangular tube shape with an open top. The bottom of the inner box 40 may be fitted into a recess provided on the bottom surface 10b of the box body 10C, or may simply be in contact with the bottom surface 10b inside the box body 10C. The side wall 42 of the inner box 40 is a partition wall that partitions the water ice storage unit 12 and the drainage unit 13, and the inside of the side wall 42 that is a partition wall is the water ice storage unit 12. The inner box 40 may be made of foamed resin or may be made of solid resin, that is, non-foamed resin.

  According to the cold insulation container 1 </ b> C of the present embodiment, as with the cold insulation container 1 of the first embodiment described above, the water in which the ice BI of the storage unit 11 has melted is discharged from the drainage unit 13 at the bottom of the storage unit 11. It is discharged to the outside through the water drain hole 13 a or stored in the water ice storage unit 12. Therefore, the contents FF such as fresh fish can be prevented from being immersed in water, and the ice BI packed together with the contents FF can be left for a longer time.

  Furthermore, the inner box 40 including the partition wall 30 and the side wall 42 which is the partition wall is detachably installed in the box body 10C, so that it is flexible according to the space inside the box body 10C and the size and shape of the contents FF. The position and number of the partition walls 30 can be changed. Therefore, the cold insulating container 1C can be used for many purposes.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

  Hereinafter, the Example using the cold storage container of this invention and the comparative example using the conventional cold storage container are demonstrated.

[Example]
First, the cold storage container of the Example which has the same structure as the cold storage container demonstrated in above-mentioned Embodiment 1 was prepared. The cold container was made of a foamed resin having a thickness of 20 mm, and the outer dimensions were 550 mm × 350 mm × 140 mm. The ratio S1: S2 between the area S1 of the drainage part and the area S2 of the water ice storage part on the bottom surface of the box was 6: 4. The drainage part was provided with four circular drain holes with a diameter of 15 mm.

  A total of 10 kg of ice is stored in the storage part and the water ice storage part inside the cold storage container of the example, the opening of the box is closed with a lid, and the environmental temperature outside the cold storage container is set to 30 ° C., When the weight of the ice after 10 hours was measured, 1.4 kg of ice remained.

[Comparative example]
Next, four circular water drain holes with a diameter of 15 mm were provided at the bottom, and a cold storage container of a comparative example having no water ice storage part was prepared. The cold storage container of the comparative example was made of a foamed resin having a thickness of 20 mm, as in the cold storage container of the example, and the outer dimensions were 550 mm × 350 mm × 140 mm.

  10 kg of ice is accommodated in the cold storage container of the comparative example, the opening of the box is closed with a lid, the environmental temperature outside the cold storage container is set to 30 ° C., and the ice weight after 10 hours is measured. As a result, 0.7 kg of ice remained.

  From the above results, the cold storage container of the example including the storage unit, the water ice storage unit, the drainage unit, and the partition is packed inside the container as compared with the cold storage container of the comparative example that does not have the water ice storage unit and the partition. It was confirmed that the produced ice can remain for a longer time.

1, 1A-1C Cold storage container 10, 10A-10C Box 10a Opening 10w Wall 11 Housing 12 Water ice storage 13a Drain hole 13 Drain 20 Lid 30 Lid 30 Bulkhead 30h Height 42 Side wall
BI ice FF contents

Claims (5)

A cold storage container for storing contents together with ice,
A box body having an open top, a lid for closing the opening of the upper part of the box body, and a housing portion in which the content and the ice is provided inside the box body is housed, the box body A water ice storage part provided inside for storing the ice and water in which the ice has melted ; a drainage part provided at the bottom of the box body and having a drain hole for discharging the water; A partition wall provided integrally with the box body and partitioning the water ice storage part and the drainage part ,
Wherein the water ice reservoir, in a state where the opening of the box body is opened, cold container, characterized that you have top is opened. Wherein in a state where the opening of the box body is closed by a lid, cold container according to claim 1, wherein the housing portion and the upper portion of the water ice reservoir is equal to or communicating. The cold water storage container according to claim 1 , wherein the water ice storage part is provided adjacent to a wall surface of the box. The cold storage container according to claim 3 , comprising a plurality of the water ice storage units. The cold storage container according to claim 4 , comprising a plurality of partition walls having different heights.

Images