JP5977028B2 - Insulated cold storage container that does not leak water - Google Patents

Description

  The present invention relates to an A-type cardboard box, which is a heat-insulated cold-insulated container that is entirely covered with a heat-insulating waterproof sheet on the inside and outside and does not leak.

  The cardboard container is made of paper and lacks waterproofness, and is likely to generate paper dust. Furthermore, the heat insulation is not sufficient compared to the polystyrene foam container. Although a polystyrene foam container is frequently used as the heat insulation cold storage container, the foam polystyrene container is excellent in heat insulation cold insulation, but cannot be folded and is bulky and is difficult to dispose of.

  The present applicant has previously developed a corrugated cardboard covering box that is excellent in water resistance, heat insulation and dust protection by combining with a water resistant sheet (Patent Document 1).

JP 2006-103786 A

  According to the cardboard box of the above publication, in the A-type cardboard box main body whose upper and lower ends are opened and closed by flaps, and in the shape of the box main body opened up and down, a tubular water-resistant sheet having a length approximately double that length. And the open-type box body was placed in a water-resistant sheet and its upper and lower ends were folded inward and connected to each other. Even if the bottom is formed by assembling, it is inevitable that water leaks during the closing of the sheet because it is assembled together with the water-resistant sheet.

  In view of the above situation, the present invention has outstanding waterproofness in combination with a waterproof sheet while being an A type cardboard box, can prevent the occurrence of paper dust, and can be easily disposed of, An object of the present invention is to provide a heat-insulated cold-insulated container that can close the bottom flap while keeping the bottom waterproof and does not leak.

In order to solve the above-mentioned problems, the present invention can open and close the top and bottom of the body, which is a rectangular rectangular tube, by the upper and lower flaps, respectively, and becomes the largest extension body by opening the upper and lower flaps. A tube body integrally formed with a box body in the form of an A-type cardboard box having a bottom structure and an upper and lower endothelium formed by reversing the upper and lower ends of the outer shell that fits outside the elongated body of the box body inside the elongated body. Insulated and cold-insulated container composed of a waterproof sheet in the form, and the endothelium by reversing the upper part of the waterproof sheet is formed as an inner bag in which the lower end of the tubular body is sealed and the water does not leak in the portion that fits in the trunk of the elongated body, The bottom of the inner bag is formed with a bottom wall that can be received together with the contents of the bag at the bottom of the box body, and the box body is provided with a folding line that extends to the range of the flap along the width center of the left and right side walls. , Both the box body A heat-insulated cold-insulated container that does not leak water, and is configured to be folded together with the waterproof sheet so that two face walls are combined, and is provided with a wrap for sealing the mouth of the upper and lower flaps by reversing the upper and lower inner skin of the waterproof sheet I will provide a.

Since the heat-insulated cold storage container that does not leak water is configured as described above, for manufacturing, the box body is assembled into a rectangular tube with cardboard, the waterproof sheet assembled into an envelope-like bag is fitted into the box body, and the upper end of the seal is When folded into the shape, the inner bag is housed in the body, and the flap edge at the upper end is closed by folding the waterproof sheet. Further, at the lower end, the end of the waterproof sheet is folded back as an outer skin, and the flap edge is also sealed by the folding.

As a result, the box body is entirely covered with the waterproof sheet, and the cardboard is protected and the watertight state is high. Since the bottom is closed by the entanglement of the flap with the waterproof sheet, watertightness cannot be said to be perfect, but the inner bag that fits in the trunk is a complete waterproof body, so water leakage never occurs.

Moreover, this water bag is a part of the waterproof sheet, that is, an integral part of the outer skin and the like, and is generated in the manufacturing procedure, so it can be securely fixed to the predetermined location and height by following the procedure. And workability is very good.

Therefore, the contents can be packaged and safely transported and stored so as not to leak water, and when the empty box has no contents, it can be folded with a folding line with the upper and lower flaps open. it can.

As described above, according to the heat-insulated cold storage container that does not leak water according to the present invention, since it is entirely covered with a waterproof sheet, it is excellent in waterproofness while being an A-type cardboard box, and paper dust is also generated. It can be prevented and disposed of easily without being bulky, and a container-like inner bag is formed on the inside, so that the flap can be closed while maintaining the waterproofness that the bottom does not leak. effective.

It is a perspective view which shows the heat insulation cold storage container which does not leak water of this invention in the form of the extending | stretching body which opened the upper and lower flaps. It is sectional drawing of the AA arrow of FIG. It is sectional drawing of a BB line arrow. It is a perspective view which shows a box main body with an elongate body form. FIG. 2 is a development view of the waterproof sheet (a) and an envelope-like plan view (b) assembled therewith. It is a perspective view which shows the bottom part by reversing the heat insulation cold insulation container for the procedure which closes a snap bottom. It is a perspective view shown in the packing use state which assembled the heat insulation cold insulation container which does not leak water. It is a bottom view of the container similarly shown in a packing use state.

  The heat-insulated cold storage container that does not leak water according to the present invention includes a box body 1 and a bag-shaped waterproof sheet 3 whose original shape is an envelope shape, and the combined structure of both provides heat insulation and waterproof properties.

  Examples of the corrugated cardboard include double-sided cardboard, double-sided cardboard, double-sided cardboard, and plastic cardboard, but are not particularly limited.

  For example, the waterproof sheet 3 may have a laminate structure of a film and a heat insulating material in terms of strength and handling. In this case, the type of film is not particularly limited, such as polyethylene, polypropylene, nylon / polyethylene, polyethylene / nylon, nylon / polyethylene / nylon, pet / nylon / aluminum foil / polyethylene, foamed polyethylene / nylon / polyethylene. When putting in, nylon is particularly desirable for the inside touching the contents. The production method of the film is not particularly limited, such as a coextruded film or a laminate film. “/” Indicates lamination or bonding.

  Examples of the heat insulating material include foamed polyethylene, air cushioning material (air cap), aluminum vapor deposition film / foamed polyethylene, aluminum vapor deposition film / air cushioning material, and the like.

  The structure of the waterproof sheet 3 includes a case where the sheet is assembled with a single sheet (a joint is taped or the like), a case where a tube-shaped end is sealed (without a seam), and a case where a four-side seal is used (a seam is not present). Can be mentioned. In addition, the bag shape is basically a flat bag, but other width gusset bags, bottom gusset bags, and the like are not particularly limited because the same effect can be obtained.

  The heat-insulated cool container that does not leak water according to the present invention comprises a box body 1 in which a corrugated cardboard is pressed to form an unfolded mold, and a waterproof sheet 3 that covers almost the entire cardboard (all of the small edges), For the waterproof sheet 3, a heat insulating material in which a film and a heat insulating material are joined is used.

  The box body 1 is a kind of A type, and the body 10 is composed of left and right side walls 5, 5 and front and back side walls 7, 7. Inner flaps 11, 11 project from the body 10 on the left and right side walls 5, 5 at the upper end, and outer flaps 13, 13 project from the front and rear side walls 7, 7. The inner flap 11 is not obstructed by the waterproof sheet 3. , 11 is formed in a triangle so that it can be folded first.

  The bottom of the box body 1 is a snap bottom 8 (also called US bottom, hell-stop, hell-bottom), and has a flap structure that can make a locked bottom that does not open only by closing without using a sealing material. . About this, it consists of the 1st flap 15 which protrudes from the one surface wall 7 in folding order, the left and right 2nd flaps 16 and 16 which protrude from the side walls 5 and 5, and the 3rd flap 17 which protrudes from the other surface wall 7. The second flaps 16, 16 are provided with notches 19, 19 so that the first flap 15 is folded together with the waterproof sheet 3, and then the third flaps are folded so that the second flaps 16, 16 are folded together with the waterproof sheet 3. Notches 21 and 21 are provided on the left and right sides of 17. Finally, when the third flap 17 is closed and its tip 17a is pushed under the tip of the first flap 15 (see the arrow in FIG. 6), the third flap 17 is brought into the second flaps 16 and 16, and the second flap 16 , 16 are locked on the third flap 17 and the third flap 17 on the first flap 15 so that they cannot be opened.

  In order to release the lock, the tip of the first flap 15 is forcibly pushed in, and the hook of the tip 17a of the third flap 17 is popped out from below. Note that cuts 18 and 18 may be provided near the tip in order to prevent inadvertent protrusion of the tip 17a and enhance safety (see the two-dot chain line in FIG. 4).

  Since the box body 1 has a rectangular body 10, the box body 1 itself has a structure that can be deformed and folded in a rhombus direction, but is folded with the face walls 7 and 7 facing each other in relation to the waterproof sheet 3. In order to obtain, the middle broken lines 23 and 23 along the width center of the left and right side walls 5 and 5 are provided.

As shown in FIG. 5, the waterproof sheet 3 is assembled from a single sheet material having a long rectangular shape (FIG. 5A), and is first assembled into an envelope shape. (B), a bag-like inner skin 3a (FIGS. 2 and 3) that fits in close contact with the open elongated body H of the box body 1 and a cylindrical outer skin 3b that fits in close contact with the outside. Are formed integrally with each other and have a shape centered on a rectangular bottom wall 25 received by the snap bottom 8, and the width of the front and rear wall 7 is taken by the left and right width L of the bottom wall 25. Half widths M and M which are the width of the side wall 5 are taken together.

There are various methods for combining the box body 1 and the waterproof sheet 3. In this case, as shown in FIG. 5, the waterproof sheet 3 is folded in two, and both ends are bonded to each other to provide seams 42 and 42. (B). Then, in the state where the envelope-shaped waterproof sheet 3 is placed on the elongated body H of the box body 1 from above and the outer skin 3b is formed in the lower half, the upper half is pushed into the elongated body H with the inner skin 3a and the front and rear walls The inner bag 4 of the waterproof sheet 3 was formed by bonding to 7 and 7 and stopping.

  Both ends are folded back 36 and 36 for sealing the edge of the cardboard. In addition, a double fold line 37 is located in the middle of the front and rear width of the bottom wall 25 so as to communicate with the middle fold lines 23 and 23 so that the bottom wall 25 is flattened horizontally during folding open (FIGS. 1 to 4). Triangle-shaped bag-like residues 39 and 39 are easily generated at both ends, and isosceles triangular polygonal lines 41 and 41 are formed. In this case, although the cost is high, by forming the waterproof sheet 3 as a bottom gusset bag, it is possible to eliminate the bag-like remainders 39 and 39 having a triangular width.

(I) Fisheries-related, fishery processing-related, food field (b) Transportation of ice cream, frozen food, fresh food, etc., home delivery field (c) Medical product field, bio-related field, etc.
(D) As an alternative to a thick polystyrene container, it can be folded without leaking and can be used in a wide range of applications as an environmentally friendly container.

1 Box body 3 Tarpaulin 3a Endothelium 3b Outer skin 4 Inner bag 8 Snap bottom 10 Body
11, 13 flaps
15 First flap
16 Second flap
17 Third flap
17a End of the third flap 18 Cut
19, 21 Notch 23 Middle fold line 25 Bottom wall 36 Folding 37 Bi-fold line 41 Isosceles triangle fold line
H extension

Claims (2)

  A rectangular cardboard box with a top and bottom that can be opened and closed by upper and lower flaps. The upper and lower flaps are the largest extension, and the bottom is a bottom, and the bottom is a combined structure. A heat insulating cold insulation container comprising a main body and a cylindrical waterproof sheet integrally formed with upper and lower endotheliums formed by reversing the upper and lower ends of an outer skin fitted inside the elongated body of the box body to the inner side of the elongated body, respectively. The inner skin by reversing the upper part of the waterproof sheet is formed as an inner bag in which the lower end of the tubular body is sealed and the water is not leaked at the part of the body of the elongated body. A bottom wall that can be received with objects is formed, and the box body is provided with a folding line that extends along the width center of the left and right side walls to the range of the flap, so that the two sides of the box body are combined With tarpaulin A heat-insulated cold-insulated container that does not leak water, and is provided with a folding back that seals the top and bottom of the upper and lower flaps by reversing the upper and lower inner linings of the waterproof sheet. The bottom of the box body is a folding structure with a flap that is locked closed by only folding the flap that closes the mouth by folding the waterproof sheet, so that the waterproof sheet adapts to the folding of the flap by deformation, In order of folding, the first flap protruding from the one surface wall, the second flaps on the left and right sides provided with the oblique notches allowing the deformation on the first flap side, and the second flaps protruding from the other surface wall and on both sides The third flap is provided with a third flap that is similarly provided with a notch that allows deformation, and the tip of the third flap is formed in a narrow shape that can be inserted under the first flap between the two second flaps. The heat insulation cold insulation container according to claim 1, wherein the heat insulation cold storage container is a snap bottom locked by insertion of a portion .

Images