JP2005035595A - Cold insulation container - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make disposal and incineration after use for transportation easy by making a container body for cold-insulated transportation of fresh fish or the like, a lid member or the like of paper, to keep cold-insulated conditions, and to prevent dissolved water or ice or the like from oozing and leaking. <P>SOLUTION: This cold insulation container includes the thermally insulated paper-made container body 1 with an upper part opened, the paper-made lid member 40 to be put over the container body 1 for closing the body 1, and a locking means 50 for fixedly engaging the lid member 40 with the container body 1. The container body 1 is structured so that an inner box member 30 having no gap, hole or the like formed around the upper opening can be fitted into an outer box member 10 having hollow right and left sidewalls 2 and front and rear sidewalls 3. The locking means 50 is formed by inwardly folding a lid side insertion lock piece 51 of a fore-and-aft lid side plate 43 of the lid member 40 to engage with a hole rim of a locking part 53 provided corresponding to the lock piece 51 on an external fore-and-aft outer side plate 17 of the outer box body 10 of the container body 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention, for example, when transporting fresh fish and shellfish such as sea bream in a refrigerated state, simplification of the packaging and sealing work, good appearance, simple disposal of used packaging material containers themselves, etc. It relates to a cold storage container.

  Conventionally, for example, in order to transport fresh fish and shellfish such as sea bream far away in a cold state, a container body made of a synthetic foam plastic material, a cold storage container constituted by a lid is used, and ice or the like is contained in the cold storage container. After being stored together with the cold insulation material, it is sealed with an adhesive tape or the like to maintain the sealing performance. However, since the sealing work when such a cold insulation container made of a synthetic resin material is used is extremely troublesome, the present applicant proposes the cold insulation container and the cold insulation packaging method using the same in Patent Document 1, and the packaging work Simplification, ease of disposal of packaging materials at the transportation destination, and the like.

The structure of the cold storage container according to Patent Document 1 is such that a foldable paper lid member is applied to a container body made of a foamed synthetic resin material, and when the lid member is applied to the container body, the lid member The lid member is fixed to the container body by stopper means that engages with an engaging recess formed in the bottom portion of the side wall of the container body.
Japanese Patent No. 2652362

  According to this conventional cooler container proposed by the present applicant, incineration is harmful because the container body itself is made of a foamed synthetic resin material at the time of disposal at the transportation destination even though the packaging work can be simplified sufficiently. The generation of gas or the like is expected, so it is practically difficult. Even when it is reused, the transportation to the production area is bulky and expensive, and is extremely troublesome. That is, since the lid member itself is made of paper, the container main body itself cannot be easily disposed of even if it is relatively easy to dispose and reuse.

  Therefore, the present invention was created in view of the existing circumstances as described above, and the conventional container body itself is also made of paper together with its lid member, and is also made of paper and accommodates, for example, a bag Fresh fish and shellfish can be kept cool enough, and at least within the time required for transportation, even if ice, which is a cold insulation material to be stored at the same time, melts, the dissolved water does not leach out or leak, and the destination It is possible to maintain its freshness sufficiently, and it is very easy to dispose of it at the transportation destination in the same way as normal paper material disposal. An object is to provide a cold storage container that can be used.

In order to solve the above-described problems, in the present invention, a paper container main body 1 having an upper opening provided with heat-insulating hollow left and right side walls 2 and front and rear side walls 3 and the opening of the container main body 1 are closed. Then, a paper-made lid member 40 that covers the container body 1 and a lock means 50 that engages and fixes the lid member 40 that covers the container body 1 to the container body 1 are provided.
The container body 1 is similarly fitted with an inner box member 30 in which no gaps, holes or the like are formed around the upper opening in the outer box member 10 having the hollow left and right side walls 2 and the front and rear side walls 3 of the upper opening. Can be configured.
The outer box member 10 includes an outer left and right outer plate 12 that is bent up and down on the left and right sides of the outer bottom plate 11, and the outer left and right outer plates 12 are connected to each other via a left and right edge plate 13 that is connected to the upper edge of the outer left and right outer plate 12. The outer left and right inner plates 14 that are folded along the inner side of the outer left and right inner plates 14 are connected to the front and rear edges of the outer left and right inner plates 14. The outer front / rear outer plate 17 is connected to the front / rear outer plate 17 so as to be folded up and down, and along the inner side of the outer front / rear outer plate 17 via the front / rear edge plate 18 connected to the upper edge of the outer front / rear outer plate 17. The outer front and rear inner plates 19 are connected in series, and between the left and right edges of the outer front and rear outer plates 17 and the front and rear edges of the outer left and right inner plates 14, the outer front and rear outer plates 17 and the outer front and rear inner plates 19 are mutually connected. A space between the outer left and right outer plates 12 and the outer left and right inner plates 14 It is assumed that formed by interlocking the front and rear left and right folding plates 21 each fold freely be folded within.
Further, in the outer box member 10, the front and rear edges of the left and right abutting folded pieces 22 arranged in a folded shape so as to abut the lower end edges of the outer left and right inner plates 14 to the inner bottom surfaces of the left and right portions of the outer bottom plate 11, and the outer front and rear inner plates. The left and right edges of the front and rear abutting folded pieces 23 that are continuously provided in a folded shape so as to abut on the inner side surfaces of the outer bottom plate 11 and the lower end edge of the outer bottom plate 11 can be configured to engage with each other.
The inner box member 30 folds the inner left and right side plates 32 that are in contact with the inner side surfaces of the outer left and right inner plates 14 of the outer box member 10 on the left and right sides of the inner bottom plate 31 that is in contact with the inner bottom surface of the outer bottom plate 11 of the outer box member 10, respectively. The left and right water leakage preventing pieces 33 that are in contact with the upper surfaces of the left and right edge plates 13 of the outer box member 10 are folded and connected to the upper edges of the inner left and right side plates 32, while the inner bottom plate 11 The front and rear side plates 34 facing the inner side surfaces of the outer front and rear inner plates 19 of the outer box member 10 are respectively folded back and forth in a folded manner, and the front and rear edge plates 18 of the outer box member 10 are connected to the upper edges of the inner front and rear side plates 34. The front and rear water leakage prevention pieces 35 that are in contact with the upper surface of the inner and rear sides of the inner left and right side plates 32 and the left and right edges of the inner front and rear side plates 32 are folded outside the inner front and rear side plates 34. Fold the front / rear / left / right folding plates 36 respectively. Can with those formed by only freely cooperative.
The lid member 40 has a left and right lid side plate 42 connected to the left and right edges of the upper lid plate 41 arranged in the center, and a front and rear lid side plate 43 to the front and rear edges of the upper lid plate 41. The connecting pieces 44 connected to the left and right edges of the side plate 42 are connected to the front and rear end portions of the left and right lid side plates 42 by oblique folding lines that fold the left and right lid side plates 42 so as to contact the inner surface of the upper lid plate 41. It can be configured to adhere to the partitioned portion 45 having a substantially triangular shape.
The lock means 50 includes a lid-side insertion lock piece 51 that is bent inwardly of the lid member 40 itself on the bottom side of the front-rear lid side plate 43 in the lid member 40, and the outer side of the outer box member 10 in the container body 1. The front / rear outer plate 17 is engaged with the folding hole edge of the main body side bending lock piece 52 that is folded inward corresponding to the position of the lid side insertion locking piece 51.

In the cold insulation container according to the present invention configured as described above, the cold object P accommodated in the container body 1 is surrounded by the left and right side walls 2 and the front and rear side walls 3 formed in a hollow shape. The inside of the container main body 1 blocked from the outside is cooled by a cold insulation material stored at the same time, and for example, the cold object P, which is fresh seafood, is kept in a cooled state to maintain its freshness.
The outer box member 10 of the container main body 1 has an outer left and right outer plate 12 facing each other in the inner and outer directions and an outer left and right inner plate 14 and the outer bottom plate 11 is made hollow and cut off from the outside. The outer bottom plate 11 is hollowed out by the outer plate 17 and the outer front / rear inner plate 19 to be cut off from the outside. Further, the front and rear edges of the inner side surface of the outer bottom plate 11, the left and right abutting folded pieces 22 arranged on the left and right edges, and the left and right engaging pieces 24 are engaged with each other at the four corners of the outer bottom plate 11. The left and right edge plates 13 hold the outer left and right outer plates 12 and the outer left and right inner plates 14 between each other, and the front and rear edge plates 18 on the upper and lower side walls 3 keep the outer front and rear outer plates 17 and the outer front and rear inner plates 19 facing each other. In combination with this, the outer left and right inner plates 14 and the outer front and rear inner plates 19 are rigid, and the left and right side walls 2 and the front and rear side walls 3 are maintained in a hollow state.
The inner box member 30 fitted inside the outer box member 10 is formed between the outer left and right outer plates 12, the outer left and right inner plates 14, the outer front and rear outer plates 17, and the outer front and rear inner plates 19 that face each other inside and outside to be hollow. The inner box member 30 which is formed in a squeezed shape with a single plate without a continuous seam is closed to the outside of the dissolved water such as a cold insulating material dissolved inside. Prevents leaching and leakage.
The locking means 50 locks the container body 1 by covering the container body 1 with the lid member 40 that closes the upper opening of the container body 1 and engaging the lid-side insertion lock piece 51 with the lock portion 53. The lid member 40 is not detached from the container body 1 during transportation. The lid-side insertion lock piece 51 is pushed into the lock portion 53 by being folded inwardly of the container body 1, and this pushing is performed by, for example, applying the lid member 40 to the container body 1 so that the operator's fingers are covered. The member 40 is brought in, and the lid side insertion lock piece 51 is simply performed when it is in the position of the lock portion 53.

  Since the present invention is configured as described above, both the container body 1 itself and its lid member 40 are made of paper, so that ordinary paper can be very easily used for disposal after use at the transportation destination. Since it can be performed in the same way as material disposal, the cost of disposal can be greatly reduced compared to the past, adverse effects on the living environment can be reduced, and in some cases it can be reused, so resources can be used effectively. is there. In addition, fresh fish and shellfish such as salmon and other cold objects to be stored can be sufficiently kept cold, and even if ice, which is a cold storage material to be stored simultaneously, melts at least within the time required for transportation Water is not leached to the outside or leaked, and the freshness can be sufficiently maintained up to the transportation destination.

  That is, in the present invention, the paper container body 1 having a heat insulating top opening, the paper lid member 40 that closes the container body 1 and covers the container body 1, and the lid member 40 are connected to the container body 1. This is because it is provided with a locking means 50 to be fixed together, so that disposal after transport use, easiness of incineration, reusability, cold insulation by a hollow wall structure, one-plate inner box Prevention of leakage and leaching by the member 30, ease of packing work, and the like can be obtained.

  Moreover, since the container main body 1 is configured by fitting the inner box member 30 into the outer box member 10, the left and right side walls 2 serving as the cold insulation space of the hollow double wall structure in the outer box member 10, the front and rear side walls The air flow inside and outside can be substantially blocked by 3 so that the cold state of the internal space of the container body 1 can be maintained for a long time. Moreover, since the inner box member 30 is formed by making a single plate into a squint shape from the periphery, no gaps, holes, or the like are formed around the upper opening. The container body is free from leaking or leaching out even if it gradually melts and forms dissolved water by storing ice or other cold insulation materials that cool fresh seafood such as Keeping 1 itself beautiful.

  In particular, the left and right side walls 2 of the outer box member 10 are formed with gaps in the gap width of the left and right edge plates 13 by the outer left and right outer plates 12 and the outer left and right inner plates 14 which are opposed to each other inside and outside. 3, a gap is formed in the gap width of the front and rear edge plates 18 by the outer front and rear outer plates 17 and the outer front and rear inner plates 19 which are opposed to each other inside and outside, and this gap forms a cold insulation space that blocks the inside and outside. . In addition, the double wall-shaped cold insulation space is configured such that the left and right abutting folded pieces 22 and the front and rear abutting folded pieces 23 that are engaged at the four corners of the outer bottom plate 11 are connected to the outer left and right inner plates 14 and the outer front and rear inner plates 19 respectively. Since the outer plate 12 and the outer front / rear outer plate 17 are maintained in a face-to-face manner, the gap is reinforced and held for a long time.

  Moreover, since the front / rear / left / right folding plate 21 is sandwiched between the outer front / rear outer plate 17 and the outer front / rear inner plate 19 or between the outer left / right outer plate 12 and the outer left / right inner plate 14, the gap can be held more effectively. In this way, the internal / external shut-off in the outer box member 10 is ensured.

  The inner box member 30 fitted into the outer box member 10 folds the inner left and right side plates 32 on the left and right sides of the inner bottom plate 31, and the inner front and rear side plates 34 on the front and rear sides. The side plates 32 and 34 are front and rear left and right folded plates 36, respectively. Since the inner box member 30 itself has no holes, voids, or the like for insertion through the inner box member 30 itself, it is dissolved due to the cold object P to be stored and the cold insulation material. The container body 1 is maintained in a clean state without water or the like leaking out or leaking out.

  Moreover, the left and right water leakage prevention pieces 33 and the front and rear water leakage prevention pieces 35 in the inner box member 30 are placed on the left and right edge plates 13 and the front and rear edge plates 18 of the outer box member 10 and are covered by the lid member 40. Thus, the sealing property between the lid member 40 and the container body 1 is maintained, and the cold insulation state is more effectively maintained.

  The locking means 50 is provided with the lid side insertion lock piece 51 of the front and rear lid side plate 43 in the lid member 40 corresponding to the position of the lid side insertion lock piece 51 on the outer front and rear outer plate 17 of the outer casing member 10 in the container body 1. Since it forms by folding inward so that it may engage with the lock part 53, when performing the lid | cover operation | work with respect to the container main body 1, the lid | cover side insertion lock piece is simultaneously covered with the cover member 40 on the container main body 1. By aligning 51 in accordance with the position of the lock portion 53, it is possible to fold and engage the lock portion 53 by inward folding by the lid-side insertion lock piece 51, and firmly fix the lid member 40 to the container body 1. It can be engaged and fixed. Moreover, since this engagement and fixing does not require any other special auxiliary member for locking, it is easy to remove the lid member 40 after transportation, and it is easier to dispose of it in the sense of reducing waste. To do.

  Note that the reference numerals added in the means for solving the above-described problems and the effects of the invention are given for easy reference to the parts showing the components shown in the drawings. The present invention is not limited to the structure / shape indicated by the reference numeral.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described below with reference to the drawings. Reference numeral 1 shown in the drawing is a container body that stores and cools fresh fish and shellfish such as salmon and other cold objects P, and is hollow. It is formed by folding and assembling corrugated cardboard having an appropriate thickness that is water-resistant so as to form a box having an opening at the top. In addition, the container body 1 is formed by folding and assembling corrugated paper having an appropriate thickness that is similar to water resistance, for example, a thickness of about 0.5 mm to 1 mm, after the object to be cooled P is stored. The lid member 40 is covered, and at the same time as the lid operation, the lid member 40 is firmly locked to the container body 1 via the lock means 50. In addition, the water-resistant treatment on the corrugated cardboard which is a forming material is performed in the papermaking stage, and is performed without any covering treatment such as a synthetic resin film after the papermaking is finished. It can be reused as it is, and even if it is incinerated, no harmful gases are generated. Of course, the forming material of each of the container main body 1 and the lid member 40 may be easily discarded or incinerated after use, and recycled paper may be used because reuse is not normally considered.

  The container body 1 itself is composed of an outer box member 10 and an inner box member 30, and similarly to the outer box member 10 having the hollow left and right side walls 2 and the front and rear side walls 3 of the upper opening, It is configured by fitting the inner box member 30 in which no hole or the like is formed. For example, the inner box member 30 is formed in a rectangular parallelepiped shape that is long in the front-rear direction so as to be suitable for storing a bag or the like as the object to be cooled P. That is, the outer box member 10 is formed by connecting the outer left and right outer plates 12 in a folded manner on the left and right sides of the long rectangular outer bottom plate 11 and externally through the left and right edge plates 13 connected to the upper edges of the outer left and right outer plates 12. External left and right inner plates 14 that are folded along the inner side of the left and right outer plates 12 are provided continuously, and front and rear left and right engagement plates 15 and 16 that are engaged with the front and rear edges of the outer left and right inner plates 14 on the left and right sides. On the other hand, an external front / rear outer plate 17 is connected to the front and rear of the outer bottom plate 11 in a folded state, and the outer front / rear outer plate 17 is connected via a front / rear edge plate 18 connected to the upper edge of the outer front / rear outer plate 17. An external front / rear inner plate 19 that is folded along the inner side is continuously provided, and an outer front / rear outer plate 17 and an outer front / rear plate 17 are disposed between the left and right edges of the outer front / rear outer plate 17 and the front / rear edges of the outer left / right inner plate 14. Between inner plates 19 or outside left and right outer plates 12, outside left and right inside Formed by interlocking the front and rear left and right folding plates 21 is folded into the gap between the plate 14 cross each folding freely. The front and rear edges of the left and right abutting folded pieces 22 connected in a folded manner so as to abut the lower bottom edges of the outer left and right inner plates 14 to the inner bottom surfaces of the left and right portions of the outer bottom plate 11, and the outer bottom plates at the lower edges of the outer front and rear inner plates 19. The left and right edges of the front and rear abutting folded pieces 23 that are connected in a folded shape so as to abut on the inner side surfaces of the front and rear portions 11 are connected to each other by, for example, left and right engaging pieces 24 that project near the bottom of the outer front and rear inner plate 19. It is possible to match.

  Further, the external left and right outer plates 12 and the outer left and right inner plates 14 are opposed to each other, and the external front and rear outer plates 17 and the outer front and rear inner plates 19 are opposed to each other by creating gaps inside and outside through the left and right edge plates 13 and the front and rear edge plates 18 respectively. Thus, hollow left and right side walls 2 and front and rear side walls 3 are formed. The left and right side wall 2 and the front and rear left and right folding plates 21 that are folded into the gaps in the front and rear side walls 3 are useful for maintaining the gap, and ensure a cold insulation space that blocks the inside and outside of the container body 1 by the gap. Yes. The front / rear / left / right folding plate 21 is formed in a substantially rectangular shape connected to the outer left / right outer plate 12 and the outer front / rear outer plate 17 at the four corners of the outer bottom plate 11 as shown in FIG. It is made to be folded into a mountain shape by oblique folding lines from the four corner positions.

  The front and rear left and right engagement plates 15 and 16 are engaged with each other when the outer left and right inner plates 14 are folded at the front and rear portions of the outer box member 10 so that the left and right engagement plates 15 and 16 are brought together from the left and right directions. The engaging portions 15A and 16A, which are substantially L-shaped by being formed in a notch shape on each of the upper edges thereof, are engaged by being engaged in the vertical direction, and the outer box member 10 itself The form after assembly and the shape retention state are reinforced. The front and rear left and right engagement plates 15 and 16 engaged with each other are housed in a space between the opposing front and rear outer plates 17 and the outer front and rear inner plates 19, that is, the outer front and rear inner plates folded inside the outer box member 10. The engagement state is further stabilized by being covered with 19.

  The outer left and right inner plates 14 that are folded inward, the left and right abutting folded pieces 22 that are folded inside the outer front and rear inner plate 19, and the front and rear abutting folded pieces 23 are front and rear inner left and right inner corners inside the outer box member 10. The outer left and right inner plates 14 and the outer front and rear inner plates 19 are urged inward by the left and right engaging pieces 24 to be engaged with each other. The gaps of the left and right side walls 2 and the front and rear side walls 3 are held so as not to separate from the outer plates 17.

  Furthermore, at the four corners of the upper edge of the outer box member 10, the left and right edge plates 13 and the front and rear edge plates 18 do not overlap each other, and the front and rear edges or the left and right edges are slanted so as to be joined in a butt shape. It is meant to cut.

  Since the outer left and right inner plates 14 and the outer front and rear inner plates 19 are folded inside the outer box member 10, the width of the outer left and right outer plates 12 and the outer front and rear outer plates 17 is 17 The box member 10 is made smaller by an amount substantially corresponding to the thickness of the corrugated cardboard.

  The inner box member 30 fitted into the outer box member 10 formed in this way is an outer box formed by the outer left and right inner plates 14 and the outer front and rear inner plates 19 which are folded inward in the outer box member 10. Corresponding to the internal volume shape by the box member 10, the inner left and right side plates 32 that are in contact with the inner side surfaces of the outer left and right inner plates 14 are folded up on the left and right sides of the long rectangular inner bottom plate 31 that is in contact with the inner bottom surface of the outer bottom plate 11. The left and right water leakage prevention pieces 33 that are in contact with the upper surfaces of the left and right edge plates 13 of the outer box member 10 are connected to the upper edges of the inner left and right side plates 32 in a folded manner. Further, an internal front / rear side plate 34 facing the inner side surface of the outer front / rear inner plate 19 is connected in a folded manner, and the front and rear surfaces of the inner front / rear side plate 34 are in contact with the upper surface of the front / rear edge plate 18 of the outer box member 10. Water leakage prevention piece 5 are connected in a folded shape, and front and rear left and right folding plates 36 that are folded outside the inner front and rear side plates 34 can be folded between the front and rear edges of the inner left and right side plates 32 and the left and right edges of the inner front and rear side plates 34, respectively. Concatenated. The front / rear water leakage prevention piece 35 itself does not contact the upper surface of the front / rear edge plate 18 of the outer box member 10, and covers the front / rear / left / right folding plate 36 that is folded outside the inner front / rear side plate 34. 34 may be folded into an inverted L shape when viewed from the side so as to abut the upper inner surface of 34.

  The front / rear / left / right folding plate 36 is formed in a substantially rectangular shape connected to the inner left / right side plate 32 and the inner front / rear side plate 34 at the four corner positions of the inner bottom plate 31 as shown in the figure. It is made to fold in the mountain shape by the diagonal fold line from.

  The inner box member 30 is folded and assembled with a piece of corrugated paper, and the object to be cooled P stored therein, ice as a cold insulating material, and its dissolved water are leached or leaked to the outside. In other words, it is configured so as to have a square constricted shape, and there are no gaps, holes, slits or other communication parts that allow the inner box member 30 itself to communicate with each other. It is as.

  The left and right edge plates 13, the left and right water leakage prevention pieces 33 that abut on the upper surface of the front and rear edge plates 18, and the front and rear water leakage prevention pieces 35, respectively, when the lid member 40 described later is applied to the container body 1. Either the front and rear edges of the left and right water leakage prevention pieces 33 or the left and right edges of the front and rear water leakage prevention pieces 35 are extended so that no gap is formed between the upper surface of the outer box member 10 and the inner side surface of the lid member 40. As a result, it is considered to maintain the cold insulation effect.

  The lid member 40 is made of a foldable paper having a substantially box shape with a lower opening, preferably a thick paper material that can be printed with water resistance. For example, the thickness of the lid member 40 is about 0.5 mm. ing. The lid member 40 itself substantially corresponds to the outer bottom plate 11 of the outer box member 10 which is the bottom wall of the container main body 1, and is attached to the container main body on a long rectangular upper lid 41 which is slightly larger than the outer shape. 1 left and right side walls 2, front and rear side walls 3, that is, outer left and right outer side plates 12 of the outer box member 10, left and right lid side plates 42 that are in contact with the outer side surfaces of the outer front and rear outer side plates 17, and front and rear lid side plates 43. ing.

  That is, as shown in FIG. 8 and FIG. 9, the lid member 40 itself has a left and right lid side plate 42 connected to each of the left and right edges of the upper lid plate 41 arranged at the center, and also the front and rear edges of the upper lid plate 41. The lid side plate 43 is continuously provided, and the connection pieces 44 provided continuously to the left and right edges of the front and rear lid side plate 42 are connected to the front and rear ends of the left and right lid side plate 42, and the left and right lid side plate 42 itself is attached to the inner side surface of the upper lid plate 41. It is configured to adhere to a substantially triangular connecting portion 45 defined by an oblique folding line that is folded so as to abut. The connecting piece 44 is formed by obliquely cutting the front and rear edges of the left and right lid side plates 42 in order to prevent the connecting piece 44 itself from abutting against the inner surface of the upper lid plate 41 when folded.

  Locking means 50 is formed for engaging and fixing the lid member 40 to the container body 1 when the lid member 40 is applied to the container body 1. The locking means 50 includes, for example, a lid-side insertion lock piece 51 that is bent inwardly of the lid member 40 itself on the bottom side of the front-rear lid side plate 43 in the lid member 40, for example, the front-rear side wall 3 in the container body 1. That is, the outer front and rear outer plates 17 of the outer box member 10 are engaged with the folding hole edges (lock portions 53) of the main body side folding lock pieces 52 that are folded inward corresponding to the positions of the lid side insertion lock pieces 51. It is a thing. The lid-side insertion lock piece 51 in the figure is on the front and rear lid side plate 43 itself on the upper edge side of the lid member 40, and the main body side bent lock piece 52 is also on the outer edge on the upper edge side of the container body 1. The lid 19 is connected to the plate 19 so that it can be raised and lowered, and when the lid member 40 is applied to the container body 1 while holding fingers or the like, the lid-side insertion lock piece 51 is placed inside and outside in a state in which the positions correspond to each other. The cover side insertion lock piece 51 is engaged with the folding hole edge of the main body side bending lock piece 52 as the lock portion 53 when pushed inward. Further, these lock pieces 51 and 52 themselves are formed in a horizontally long shape when viewed from the front, so that the horizontally long main body side bent lock piece 52 is similarly folded with respect to the lid side insertion lock piece 51. At the same time, it is forcibly inserted into the lock portion 53 that is the edge of the folding hole of the main body side bending lock piece 52 by applying a pressing force from the outside, and the lid side insertion lock piece 51 is engaged with the edge portion of the lock portion 53. It is supposed to match. In some cases, the lock portion 53 may be formed in a hole shape in which the main body side bending lock piece 52 itself is cut off and the lid side insertion lock piece 51 can be inserted and locked.

  As shown in the figure, the shapes of the lid-side insertion lock piece 51 and the body-side bending lock piece 52 are not limited to the horizontally long rectangular shape shown in the figure, but are, for example, an oval shape in which both ends are arcuate. Furthermore, it is not limited to these shapes such as an elliptical shape, a dovetail shape, a trapezoidal shape, or the like, but the lid-side insertion lock piece 51 is simply folded with respect to the side wall of the container body 1 and engaged. It only has to be something to do. It should be noted that both the lid-side insertion lock piece 51 and the main body-side bent lock piece 52 are connected at any part to the external front / rear outer plate 17 itself and the front / rear lid side plate 43 itself, which are the main body portions. Alternatively, one may be on the lower side and the other on the upper side, so that they may be in different directions.

  Moreover, the display part 55 which displays the content of the to-be-cooled material P to accommodate is formed in the container main body 1, for example in the outer surface of the front-and-back side wall 3, and the content of the display part 55 is shown from the outside of the lid member 40 which covered the lid. Thus, a viewing window portion 56 corresponding to the position of the display portion 55 is formed in the lid member 40 so as to be opened. The display portion 55 shown in the figure is arranged on the front and rear side walls 3 in the container main body 1 and the viewing window portion 56 corresponding thereto is similarly arranged at the position of the front and rear lid side plate 43 in the lid member 40, but the display position is arbitrary. It can be set.

  Next, the assembly of the container body 1 configured as described above, an example of use of the lid member 40 by applying the lid, and the like will be described. The assembly of the container body 1 is performed by placing the inner box member 30 inside the assembled outer box member 10. Insert it. That is, first, the outer box member 10 folds the outer left and right outer plates 12 on the left and right sides of the outer bottom plate 11 and the outer front and rear outer plates 17 on the front and rear sides (see FIG. 5A). It folds inward so as to face the inner side surface of the outer left and right outer plates 12 through the plate 13 (see FIG. 5B). Next, the front left and right engagement plates 15 and the rear left and right engagement plates 16 are engaged with each other at the front and rear, and the front and rear left and right folding plates 21 are positioned outside the front left and right engagement plates 15 and 16 and folded (see FIG. 5C). The outer front / rear inner plate 19 is folded inward so as to face the inner side surface of the outer front / rear outer plate 17 with the front / rear left / right folding plate 21 and the front left / right engagement plates 15, 16 interposed between the front / rear edge plates 18. (See FIG. 5D). After that, the corners of the left and right abutting folded pieces 22 of the outer left and right inner plates 14 and the front and rear abutting folded pieces 23 of the outer front and rear inner plates 19 are engaged and combined with each other and fixed at the four corners of the outer bottom plate 11. The member 10 is assembled.

  On the other hand, the inner box member 30 folds the inner left and right side plates 32 on the left and right sides of the inner bottom plate 31 and the inner front and rear side plates 34 on the front and rear sides (see FIG. 7A). Is folded into the outer side surface of the inner front and rear side plate 34, and the front and rear water leakage prevention pieces 35 are folded and fixed so as to cover the upper part of the front and rear and left and right folding plates 36 (see FIG. 7B). After that, the container body 1 is formed by fitting the inner box member 30 into the outer box member 10.

  In addition, the lid member 40 folds the front and rear lid side plates 43 before and after the upper lid plate 41 and bends the connecting portion 45 with a folding line, folds the left and right lid side plates 42 on the left and right sides, and connects the connecting pieces 44 to each other. It is assembled by bonding to the connecting portion 45 (see FIG. 9), and is folded and flattened before use and stored together with the container body 1.

  In use, the object to be cooled P, which is a fresh fish and shellfish such as sea bream, to be cooled and transported, is stored in the container body 1 (inside the inner box member 30) together with ice as a cold insulator, and is applied by the lid member 40. Cover. In this lidding operation, the container body 1 is covered while supporting the front and back of the lid member 40 with the fingers of the operator, and when covering, the lid side insertion lock piece 51 of the lid member 40 is covered with the outer box member 10 of the container body 1. When positioned on the main body side bending lock piece 52, the lid side insertion lock piece 51 is folded so as to be pushed inwardly of the container main body 1 so as to engage with the lock portion 53 (see FIG. 3). In this way, the lid member 40 is fixedly held on the container body 1 by the locking means 50 by the lid-side insertion lock piece 51 that meshes with the lock portion 53.

  In this way, the cold insulation container according to the present invention in which the predetermined cold object P is packed is arranged in parallel in the front-rear and left-right directions, and further loaded in a transport vehicle or the like in a state of being stacked in an appropriate number of stages, and is transported to a predetermined place. The In the transportation test conducted by the present applicant, it was confirmed that the material to be cooled P was kept in its cooled state and its freshness was sufficiently maintained even after approximately 30 hours had passed when it was transported at room temperature. In addition, after packing with ice as a cold insulation material, it seems that there is no water leakage for about 4 days, and in the state where many are stacked, the cold air is circulated between the cold insulation containers, Compared to conventional cold insulation containers made of foamed synthetic resin material, it was confirmed that the cooling air temperature of the accumulated cold air atmosphere was lowered and the cold insulation state was efficiently maintained.

  In the cold storage container according to the present invention after taking out the object to be cooled P at the transport destination, the lid member 40 is removed, and the inner casing member 30 is removed from the outer casing member 10 in the container main body 1 and is disassembled. It can be flat and compact, and may be discarded or incinerated. In some cases, it can be packed in large numbers and returned to the shipping destination for reuse or recycled paper.

It is a disassembled perspective view which shows one embodiment of this invention. Similarly, it is a partially omitted cross-sectional view when the lid is closed. It is a principal part sectional view when a lid member is similarly locked to a container main part. It is a development view of the outer box member in the container body. It is a perspective view of the principal part explaining the assembly of an outer packaging member similarly, (A) is a state which folds up an external right-and-left outer board, an external right-and-left inner board, etc. A state in which the inner plate is folded and overlapped, (C) is a state in which the outer front / rear outer plate is folded while the front left and right engaging plates are engaged with each other, a state in which the outer front / rear inner plate is folded, and (D) is a The front and rear inner plates are folded and locked. It is the expanded view of the inner box member in a container main body similarly. It is the perspective view of the principal part explaining the assembly of an inner box member similarly, (A) is the state which folds up an internal front-and-back side board and an internal right-and-left side board, respectively, (B) The leakage prevention piece is folded. It is an expanded view of a lid member similarly. It is a perspective view of the principal part explaining the assembly of a cover member similarly.

Explanation of symbols

P ... Cooled object 1 ... Container body 2 ... Left and right side walls 3 ... Front and rear side walls 10 ... Outer box member 11 ... External bottom plate 12 ... External left and right outer plates 13 ... Left and right edge plates 14 ... External left and right inner plates 15 ... Front left and right engagement plates 15A ... engaging portion 16 ... rear left / right engaging plate 16A ... engaging portion 17 ... external front / rear outer plate 18 ... front / rear edge plate 19 ... outer front / rear inner plate 21 ... front / rear left / right folding plate 22 ... left / right contact folding piece 23 ... front / rear contact Folding folding piece 24 ... Left and right engagement piece 30 ... Inner box member 31 ... Inner bottom plate 32 ... Inner left and right side plate 33 ... Left and right water leakage prevention piece 34 ... Interior and rear water leakage prevention plate 35 ... Front and rear water leakage prevention piece 36 ... Front and left and right folding plate 40 ... Lid member 41 ... Upper lid plate 42 ... Left and right lid side plate 43 ... Front and rear lid side plate 44 ... Connection piece 45 ... Connection portion 50 ... Locking means 51 ... Lid side insertion lock piece 52 ... Main body side bending lock piece 53 ... Lock portion 55 ... Display unit 56 ... Viewing window

Claims (7)

  Insulating hollow left and right side walls, upper and lower side paper container body with front and rear side walls, a paper lid member that closes the opening of the container body and covers the container body, and the container body A cold storage container comprising: a lock unit that engages and fixes the lid member to the container body.   The container body is configured by fitting an inner box member having no gap, hole, or the like around the upper opening, similarly to the outer box member having the hollow left and right side walls of the upper opening and the front and rear side walls. Item 2. The cold container according to Item 1.   The outer box member is formed by connecting the outer left and right outer plates to the left and right sides of the outer bottom plate in a folded manner, and along the inner sides of the outer left and right outer plates via the left and right edge plates connected to the upper edges of the outer left and right outer plates. The outer left and right inner plates to be folded are connected to each other, and the front and rear left and right engagement plates that engage with each other on the left and right sides are attached to the front and rear edges of the outer left and right inner plates. The outer front and rear inner plates that are folded along the inner side of the outer front and rear outer plates are continuously connected via the front and rear edge plates that are connected to the upper edge of the outer front and rear outer plates. Between the left and right edges of the front and rear outer plates and the front and rear edges of the outer left and right inner plates, front and rear left and right folded between the outer front and rear outer plates, between the outer front and rear inner plates, or between the outer left and right outer plates and the outer left and right inner plates 3. Either one of Claim 1 or 2 which connects a folding plate so that folding is possible respectively. Cold storage container according.   In the outer box member, the front and rear edges of the left and right abutting folded pieces connected in a folded manner so as to abut the lower bottom edges of the outer left and right inner plates and the inner bottom surfaces of the outer bottom plates, and the outer bottom plate at the lower edge of the outer front and rear inner plates The cold storage container according to any one of claims 1 to 3, wherein the left and right edges of the front and rear abutting folded pieces arranged in a folded shape so as to abut on the inner side surfaces of the front and rear portions are mutually engaged.   The inner box member is connected to the left and right sides of the inner bottom plate that is in contact with the inner bottom surface of the outer bottom plate of the outer box member, and the inner left and right side plates that are in contact with the inner side surfaces of the outer left and right inner plates of the outer box member are connected in a folded manner. The left and right water leakage prevention pieces that are in contact with the upper surfaces of the left and right edge plates of the outer box member are connected in a folded manner to the upper edges of the inner left and right side plates, while the outer front and rear inner plates of the outer box member are arranged in front and rear of the inner bottom plate. The front and rear side plates facing each other on the inner surface are connected in a folded shape, and the front and rear water leakage prevention pieces that contact the upper surface of the front and rear edge plates in the outer box member are connected in a folded shape on the inner front and rear side plate upper edge. And a front / rear / left / right folding plate that is folded outside the inner front / rear side plate between the front / rear edges of the inner left / right side plate and the left / right edges of the inner front / rear side plate. The cold storage container as described.   The lid member has a left and right lid side plate connected to the left and right edges of the upper lid plate disposed in the center, and a front and rear lid side plate similarly connected to the front and rear edges of the upper lid plate, and the left and right edges of the front and rear lid side plates. The connecting pieces connected to the front and rear end portions of the left and right lid side plates are connected to a substantially triangular connecting portion defined by oblique folding lines that fold the left and right lid side plates themselves so as to contact the inner side surface of the upper lid plate. The cold container according to any one of claims 1 to 5, wherein the container is adhered. The locking means inserts a lid-side insertion lock piece that is folded inwardly into the lid member itself into the bottom side of the front-rear lid side plate in the lid member, and inserts the lid-side insertion piece into the outer front-rear outer plate of the outer casing member in the container body. The cold storage container according to any one of claims 1 to 6, wherein a lock portion for inserting and locking the lid-side insertion lock piece is provided corresponding to the position of the lock piece.

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