JP2012245989A - Packaging box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging box having superior workability for storing vegetables and fruit and which can be stored and carried while maintaining sufficient ventilation in a stably stacked condition.SOLUTION: The packaging box includes a rectangular body part having a pair of rectangular side wall plates 2, 2 having top face and bottom face closing inner flaps 4a, 4b having folding lines L4 for dividing the flaps into two of upper and lower portions continuously provided to both upper and lower ends thereof, and a pair of octagonal side wall plates 3, 3 having top face and bottom face closing outer flaps 5a, 5b continuously provided at tip ends of end regions 3c projecting further outward in isosceles trapezoidal shapes than both the upper and lower ends of the rectangular wall plates. The outer flaps are folded over a three-face body closing structure formed by covering the top face and the bottom face in trapezoidal shapes with the inner flaps, insertion pieces 5c of the outer flaps are inserted into insertion holes 4c of the three-face body closing structure and are engaged, and the closing structure of the top face and the bottom face is formed.

Description

The present invention is a packaging box for packaging products such as vegetables, fruits, fresh flowers, etc., and has a shape and structure particularly suitable for packaging products that are required to be stacked, stored and transported while maintaining air permeability It is related with the packaging box currently formed from one blank sheet.
In particular, the present invention is capable of reliably closing the top and bottom surfaces, allowing the contents to be stored after being laid down, transported and stored in a standing state, and stored in a stacked state. The present invention relates to a non-staple type packaging box that can maintain the air permeability in the packaging box at all times and maintain the freshness of the stored goods during the transportation operation.

  As packaging boxes for packaging fruits and vegetables, fresh flowers, and the like, JIS-Z1507 0201 type (former A-1 type) cardboard boxes that are produced in factory and delivered in a bonded state are often used. This 0201 type box has a rectangular parallelepiped shape in which a rectangular four-side plate is connected in one direction, and an inner flap and an outer flap for sealing the bottom and top surfaces of the box are connected to the upper and lower ends of the four-side plate. Box.

  When the boxes of the above type are stacked in the product accommodation state, the surfaces of the box bodies are in close contact with each other, so that it is necessary to maintain air permeability for the products contained in the box body. Even if vent holes are formed on the wall, the vents are blocked and do not function in the stacked state, and it is unstable if stacked so that a gap is formed between the boxes in order to make the vents function. There is a risk of collapse of the cargo during transportation due to the state of proper stacking.

  As a packaging container having a body shape of a polyhedron, a packaging container having an octahedral structure in which the body part has two side panels, end panels, and slope panels are proposed (Patent Document 1, Patent Document). 2). When packaging containers having these octahedral-structured body parts are stacked, a space is formed between adjacent containers in the sloped panel part, and air permeability is maintained by forming a vent hole in the sloped panel part. Can be stacked and transported. However, the stability at the time of carrying by laminating many is not as stable as a rectangular parallelepiped box in which the body surface of the packaging box is in full contact.

  In addition, it is desirable to hold fresh flowers, leafy vegetables, and the like in an upright state from the viewpoint of maintaining freshness, but when storing the contents, it is desirable to lay them down for work efficiency. Therefore, a packaging box that can be transported and stored in a state in which the contents are stood by tumbling the packaging container 90 ° after containing the contents is required. However, when the packaging box is turned over, when the bottom surface portion and the lid portion become side surfaces, the normal non-staple type bottom surface closing structure has a problem that the lid opens due to impact or vibration because the engagement is weak.

JP 2000-326954 A JP 04-239442 A

In the case of the octahedron-shaped packaging container as described above, the top and bottom closing structures are combined with closing members connected to the upper and lower ends of the side plate, the end face plate, and the sloped plate. There is also a problem that the operation of forming the closed structure portion on the top surface and the bottom surface becomes complicated.
The present invention is particularly suitable as a packaging box for fruits and flowers that need to be handled and transported in a state where the air permeability of the accommodated goods is ensured, and is easy to accommodate the goods and close the top and bottom surfaces. In addition, it is possible to transport and store the contents in an upright state after the contents are laid down and accommodated, and from a blank sheet made of a piece of corrugated cardboard or paperboard. The present invention relates to a packaging box that forms a closed portion of a top surface and a bottom surface.

(1) The top surface closing inner flap 4a is connected to the top surface side end portion 2a via a folding line, and the bottom surface closing inner flap 4b is connected to the bottom surface side end portion 2b via a folding line. A pair of rectangular side wall plates 2, 2;
The rectangular side wall plate 2 has end regions 3c extending in an isosceles trapezoidal shape outwardly from the positions of the end portion 2a on the top surface side and the end portion 2b on the bottom surface side on the top surface side and the bottom surface side. The top 5 has a plug 5c that is connected to the end 3a on the top surface side corresponding to the trapezoidal upper base of the end region 3c and the end 3b on the bottom surface side through a broken line from both sides. The outer flap 5a for closing the surface and the outer flap 5b for closing the bottom surface are composed of a pair of octagonal side wall plates 3 and 3 connected via a fold line,
The top flap closing inner flap 4a and the bottom closing inner flap 4b of the rectangular side wall plates 2 and 2 are formed in the shape of an isosceles trapezoid of the outer flaps 5a and 5b by a fold line L4 that divides the inside of each flap vertically. The end region 3c is divided into base end flap portions 4a1 and 4b1 and top end flap portions 4a2 and 4b2 having a vertical width equal to the length of the inclined end portions 3d and 3d, and at the symmetrical position in the width direction of the folding line L4. A pair of insertion holes 4c, 4c are formed along the folding line L4, and are inner flaps that form an isosceles trapezoidal trihedral closing structure on the top and bottom surfaces,
The top surface closing outer flap 5a and the bottom surface closing outer flap 5b of the octagonal side wall plates 3 and 3 are folded on the flat top surface of the isosceles trapezoidal trihedral closing structure portion, and inserted on both sides. A packaging box, which is an outer flap that inserts and engages the piece 5c into the insertion hole 4c of the trihedral closing structure portion to fix each of the trihedral closing structure portions.

(2) The insertion pieces 5c connected to both side portions of the top surface closing outer flap 5a and the bottom surface closing outer flap 5b via fold lines are symmetrically formed from both side portions of the outer flaps 5a and 5b. It consists of L-shaped and inverted L-shaped projecting portions that are formed to project, and is located at two symmetrical positions in the width direction along the folding line L4 in the top flap closing inner flap 4a and the bottom closing inner flap 4b. The formed insertion holes 4c and 4c are each composed of a narrow notch portion along the fold line L4 and a notch line portion continuing to the notch portion.

(3) The top flap closing inner flaps 4a and 4a and the bottom closing inner flaps 4b and 4b of the rectangular side wall plates 2 and 2 have their base end flap portions 4a1, 4a1 and 4b1, 4b1 connected to the octagonal side walls. The end flaps are bent from the end portion 2a and the end portion 2b along the inclined opposite sides 3d and 3d in the end regions 3c and 3c of the isosceles trapezoidal shape of the plates 3 and 3, and then from the folding line L4 dividing the inside of the flap portion. 4a2 and 4b2 are inner flaps that further bend parallel to the top and bottom surfaces to form a trihedral closing structure that covers the top and bottom surfaces in an isosceles trapezoidal shape, and the top surfaces of the octagonal side wall plates 3 and 3 The outer flaps 5a and 5a for closing and the outer flaps 5b and 5b for closing the bottom surface are further bent from the end portion 3a and the end portion 3b and folded on the flat top surface of the trihedral closing structure portion. Insert the insert 5c Wherein the engagement plug into the hole 4c and an outer flap for fixing the trihedron closure structure (1) or (2) Packaging box according to claim.

(4) Vent holes 7 are formed in the base end flap portions 4a1, 4a1 and 4b1, 4b1 of the top side closing inner flaps 4a, 4a and the bottom side closing inner flaps 4b, 4b of the rectangular side wall plates 2, 2, respectively. The packaging box according to any one of items (1) to (3), wherein

(5) The packaging box according to any one of (1) to (4), wherein the top structure and the bottom structure have the same structure.

(6) The packaging box according to any one of (1) to (5), wherein the one blank sheet is one kind selected from corrugated cardboard and paperboard sheets.

  When the packaging box of the present invention is stacked in a product-accommodating state, the rectangular body surfaces of the stacked packaging box are in close contact with each other, so the stacked state is stable and can be transported without worrying about collapse of the load. The top surface and bottom surface closing structure is an isosceles trapezoidal trihedral structure, and a breathable gap is formed between the stacked packaging boxes, so that the top surface and bottom surface closing structure is formed. It is particularly suitable as a packaging box for transporting fruits and vegetables and the like that are required to maintain air permeability in the accommodated state only by forming a ventilation hole communicating with the inside and outside of the packaging box.

  The packaging box of the present invention can be folded and stored flat in a state where a rectangular body is formed from a blank sheet formed by punching out a single cardboard sheet or paperboard sheet, This assembly work is also a simple structure for assembling the top and bottom closure structures in a non-staple manner, and does not require skilled workers.

It is a figure which shows the blank sheet which expand | deployed the packaging box of this invention. FIG. 2 is an assembly process diagram in which a rectangular body is formed from the blank sheet of FIG. 1. It is a figure which shows the middle state of the bottom face closing operation | work following the state of FIG. It is a figure which shows the fixing operation | work of a bottom face closing part following FIG. It is the figure which finished the bottom face closing operation. It is a figure which shows the state which completed the closing operation | work of a top surface and a bottom face in the state which accommodated goods.

The packaging box of the present invention has a rectangular body and a top and bottom closing structure of a trihedral structure from a blank sheet made of corrugated cardboard or paperboard, which is easy to store goods, and to close the top and bottom surfaces. It is the packaging box which forms a part.
Hereinafter, the packaging box of the present invention will be specifically described with reference to the drawings. However, the packaging box of the present invention is not limited to the examples specifically illustrated in the drawings, and is described in the claims. The present invention also includes a packaging box in which various changes are made to the shape and structure of the packaging box illustrated in the drawings without departing from the technical idea of the invention.

FIG. 1 shows a blank sheet for assembling the packaging box of the present invention, which is formed by punching a cardboard sheet or a paperboard sheet.
As shown in FIG. 1, the blank sheet (1) which forms the packaging box 1 of this invention is the rectangular side wall board 2, the octagonal side wall board 3, the rectangular side wall board 2, and the octagon which form the rectangular trunk | drum of a packaging box. A side wall plate 3 is provided continuously through a fold line L, and a side wall portion of one octagonal side wall plate 3 is bonded to a side end portion of the other rectangular side wall plate 2 to form a rectangular body. An adhesive margin 6 is provided.

One pair of side wall plates that form the rectangular body are rectangular side wall plates 2 and 2, and a folding line L <b> 2 that forms the end portion 2 a is formed on the end portion 2 a on the top surface side and the end portion 2 b on the bottom surface side. The inner flap 4a for closing the top surface is continuously provided via the fold line L2, and the inner flap 4b for closing the bottom surface is continuously provided via the fold line L2 forming the end 2b. The inside flap 4a for closing the top surface is divided into a base end flap portion 4a1 and a tip end flap portion 4a2 by a fold line L4 at the intermediate portion in the vertical direction, and the fold line at the intermediate portion in the vertical direction is also divided in the bottom flap 4b. The base end flap portion 4b1 and the front end flap portion 4b2 are divided by L4. And in two places along the fold line L4 which divides the inside of the top surface closing flap 4a and the inside of the bottom surface closing flap 4b, the width direction symmetry of each of the top surface closing flap 4a and the bottom surface closing flap 4b is symmetrical. Insertion holes 4c and 4c having symmetrical narrow notches and continuous cuts are formed at the positions.
A vent hole 7 is formed in each of the base end flap portions 4a1 and 4b1.

  The other pair of side wall plates 3, 3 forming the rectangular body portion has an end region 3 c on the top surface side and an end region 3 c on the bottom surface side, and an end portion 2 a on the top surface side of the rectangular side wall plate 2 and the bottom surface side. These are octagonal side wall plates 3 and 3 projecting in an isosceles trapezoidal shape from the imaginary line L on the extension line of the folding line L2 forming the side end 2b. In addition, a rectangular top outer closure flap 5a and a bottom closure outer flap 5b are connected to the isosceles trapezoidal end region 3c via a fold line L3 that forms a tip 3a corresponding to the upper base of the trapezoid. In addition, an insertion piece 5c that protrudes laterally through a fold line L5 is connected to each side of the outer flap 5a for closing the top surface and the outer flap 5b for closing the bottom surface.

  As shown in the drawing, the insertion piece 5c bends upward in parallel to the side edges from the side edges of the top surface closing outer flap 5a and the bottom surface closing outer flap 5b. By forming a pair of insertion pieces composed of an L-shape and an inverted L-shape that is symmetrical to the L-shape, a portion bent upward is formed in an inner flap that closes the top surface and the bottom surface. It can be set as the insertion piece which is hard to be pulled out by being caught in the inner flap inner surface in the state inserted in the insertion hole 4c.

  The respective heights (distances from the folding line L2 to the tip of the flap) of the inner flap 4a for closing the top surface and the inner flap 4b for closing the bottom surface of the rectangular side wall plates 2 and 2 are the same as the end region 3c of the octagonal side wall plate 3. It is set to be equal to the sum of the heights of the rectangular top surface closing outer flaps 5a (or bottom surface closing outer flaps 5b) (that is, the distance from the imaginary line L to the outer flap tip). Also, the length of the inclined end portions 3d on both sides, which are the opposite sides of the isosceles trapezoidal shape, which is the end region 3c of the outer flap 3 for closing the top surface, and the base end flap portions of the inner flaps 4a and 4b for closing the top surface The heights of 4a1 and 4b1 (that is, the distance between the fold line L2 and the fold line L4) are also set equal.

  As described above, the length of the inclined end portion 3d in the end region 3c of the outer flap 5a for closing the top surface, the height of the base end flap portion 4a1 in the inner flap 4a for closing the top surface, and the outer flap 5b for closing the bottom surface By making the length of the inclined end portion 3d in the end region 3c equal to the height of the base end flap portion 4b1 in the bottom closing inner flap 4b, the base end flap portion 4a1 of the inner flaps 4a and 4b covering the top surface and the bottom surface. And 4b1 are bent obliquely along the inclined end portion 3d in the end region 3c of the top surface closing outer flap 5a and the bottom surface closing outer flap 5b, and the tip flap portions 4a2 and 4b2 are further formed on the top surface and the bottom surface. If the top and bottom surfaces of the top and bottom surfaces are covered as if the front edges of both front and back flaps are butted together, Shape can be formed inside the closed structure part is a trihedron structure as a isosceles trapezoid.

Further, the height of the pair of top side closing outer flaps 5a folded on the outer surface of the inner side closing structure part of the trihedral structure (from the folding line L3 which becomes the end part 3a of the octagonal side wall plate 3 from both outer flap leading edges) Is set to be equal to the width of the top flap closing inner flap 4a (equal to the width of the rectangular side wall plate 2), and similarly, the height of the pair of bottom side closing outer flaps 5b. The sum of the distances from the fold line L3, which is the end portion 3b of the octagonal side wall plate 3, to the leading edge of the outer flap 5b is equal to the width of the bottom flap inner flap 4b (equal to the width of the rectangular side wall plate 2). Is set as follows.
By setting the size of the top and bottom outer flaps as described above, the outer flap covers the entire flat top surface corresponding to the trapezoidal upper bottom of the inner closed portion of the trihedral structure by the inner flap. The closure structure can be fixed.

The procedure for assembling the packaging box of the present invention from the blank sheet of FIG. 1 will be described below with reference to FIGS.
First, in the broken line L1 which divides the blank sheet | seat of FIG. 1 in order of the rectangular side wall board 2, the octagonal side wall board 3, the rectangular side wall board 2, and the octagonal side wall board 3 which form a rectangular trunk | drum, respectively. A tubular shape having a rectangular body shown in FIG. 2 by being bent at a right angle and pasting a margin 6 connected to a side edge of the last octagonal side wall plate 3 to a side edge of the first rectangular side wall plate 2 Form the body.

  Next, the base end flap portions 4b1 of the bottom side closing inner flaps 4b, 4b of the rectangular side wall plates 2, 2 are connected to the inclined end portions 3d of the end regions 3c of the isosceles trapezoidal shape of the adjacent octagonal side wall plates 3. After being bent in an inclined state from the fold line L2 forming the end portion 2b, the front end flap portion 4b2 is bent parallel to the bottom surface from the fold line L4 dividing the inside of the bottom side closing inner flap 4b. Thus, the bottom closed structure part of the trihedral structure protruding in a trapezoidal shape shown in FIG.

  Next, as shown in FIG. 4, the bottom-side closing outer flap 5 b of one octagonal side wall plate 3 is bent at a right angle from the folding line L 5 to the insertion piece 5 c protruding from both sides thereof. After the state, it is folded on the top flat surface formed by the pair of front end flap portions 4b2 in the bottom face closing structure portion protruding in the trihedral shape from the folding line L3 which becomes the end portion 3b of the octagonal side wall plate 3. At the same time, the insertion piece 5c is inserted into the opposite insertion hole 4c, and the bottom side closure outer flap 5b of the other octagonal side wall plate 3 is folded on the remaining top flat surface in the same manner. 5c is inserted in the opposing insertion hole 4c, and the bottom face closing structure part which protrudes in the shape of a trihedron as shown in FIG. 5 is fixed.

  After storing fruits and vegetables etc. from the top side in the packaging box with the bottom face closed as described above, the first facing each other by a procedure similar to the procedure for forming the bottom face closing structure portion shown in FIGS. Each base end side flap portion 4a1 of the pair of top surface side closing inner flaps 4a is inclined from the folding line L2 along the inclined end portion 3d of the isosceles trapezoidal end region 3c of the adjacent octagonal side wall plate 3 After folding the top surface side closing flap 4a, the front flap portion 4a2 is folded in parallel to the top surface from the folding line L4 that bisects the top surface side closing inner flap 4a, and the opposite front ends are brought into contact with each other. An inner top surface closing structure portion protruding in a trihedral shape whose cross-sectional shape in the direction is an isosceles trapezoid is formed.

  Next, after the outer flap 5a for closing the top surface of one octagonal side wall plate 3 is in a state in which the insertion piece 5c projecting from both sides thereof is bent inward from the folding line L5 at right angles, Folding is performed on the top flat surface formed by the pair of front end flap portions 4a2 in the top face closing structure portion of the trihedral shape from the fold line L3 which is the upper end 3a of the square side wall plate 3, and the insertion piece 5c is opposed. As shown in FIG. 6, it inserts in the insertion hole 4c, fixes an inner top surface closing structure part, and completes the packaging box which accommodated the content.

  The packaging box containing the contents formed as described above has a rectangular body, a top surface projecting into a trihedral shape whose vertical cross-sectional shape is an isosceles trapezoid, and a closed structure portion on the bottom surface. Therefore, when transporting in a state in which the contents are accommodated, a stable stacked state can be obtained by stacking so that the rectangular body portions are in contact with each other. In addition, a gap is created between the top and bottom surfaces of the adjacent packaging boxes in a stacked state so that air can always flow therethrough, and it passes through the base end flap portion of the top surface closing inner flap and the bottom surface closing inner flap. Since the air permeability in the packaging box is always maintained when the pores are formed, it is particularly suitable for packaging products such as fruits and vegetables and fresh flowers that are required to be kept air-permeable during storage and transportation.

1: Packaging box 2: Rectangular side wall plate 2a: Top side end 2b: Bottom side end 3: Octagonal side wall plate 3a: Top side end 3b: Bottom side end 3c: Isosceles trapezoidal end region 3d: Inclined end portion 4a: Top flap closing inner flap 4a1: Base end flap portion 4a2: Tip flap portion 4b: Bottom flap closing inner flap 4b1: Base end flap portion 4b2: Tip flap portion 4c: Insertion hole 5a: Top Surface closing outer flap 5b: Bottom closing outer flap 5c: Insert piece 6: Adhesive margin 7: Vent hole L: Virtual line (corresponding to the bottom of the isosceles trapezoid)
L1-L5: broken line

Claims (6)

A pair of rectangles in which the top surface closing inner flap 4a is connected to the top surface side end portion 2a via a folding line, and the bottom surface closing inner flap 4b is connected to the bottom surface side end portion 2b via a folding line. Side wall plates 2, 2;
The rectangular side wall plate 2 has end regions 3c extending in an isosceles trapezoidal shape outwardly from the positions of the end portion 2a on the top surface side and the end portion 2b on the bottom surface side on the top surface side and the bottom surface side. The top 5 has a plug 5c that is connected to the end 3a on the top surface side corresponding to the trapezoidal upper base of the end region 3c and the end 3b on the bottom surface side through a broken line from both sides. The outer flap 5a for closing the surface and the outer flap 5b for closing the bottom surface are composed of a pair of octagonal side wall plates 3 and 3 connected via a fold line,
The top flap closing inner flap 4a and the bottom closing inner flap 4b of the rectangular side wall plates 2 and 2 are formed in the shape of an isosceles trapezoid of the outer flaps 5a and 5b by a fold line L4 that divides the inside of each flap vertically. The end region 3c is divided into base end flap portions 4a1 and 4b1 and top end flap portions 4a2 and 4b2 having a vertical width equal to the length of the inclined end portions 3d and 3d, and at the symmetrical position in the width direction of the folding line L4. A pair of insertion holes 4c, 4c are formed along the folding line L4, and are inner flaps that form an isosceles trapezoidal trihedral closing structure on the top and bottom surfaces,
The top surface closing outer flap 5a and the bottom surface closing outer flap 5b of the octagonal side wall plates 3 and 3 are folded on the flat top surface of the isosceles trapezoidal trihedral closing structure portion, and inserted on both sides. A packaging box, which is an outer flap that inserts and engages the piece 5c into the insertion hole 4c of the trihedral closing structure portion to fix each of the trihedral closing structure portions.   Insertion pieces 5c connected to both sides of the outer flap 5a for closing the top surface and the outer flap 5b for closing the bottom surface via a fold line are formed to project symmetrically from both sides of the outer flaps 5a and 5b. Are formed at two symmetrical positions in the width direction along the fold line L4 in the top flap closing inner flap 4a and the bottom closing inner flap 4b. 2. The packaging box according to claim 1, wherein the insertion holes 4c and 4c are formed of a narrow notch along the folding line L4 and a notch line continuous to the notch.   The top flap closing inner flaps 4a and 4a and the bottom closing inner flaps 4b and 4b of the rectangular side wall plates 2 and 2 have their base end flap portions 4a1, 4a1 and 4b1 and 4b1 connected to the octagonal side wall plate 3, respectively. 3 isosceles trapezoidal end regions 3c and 3c, and is bent obliquely from the end 2a and end 2b along the opposite sides 3d and 3d, and then from the folding line L4 dividing the inside of the flap, the leading end flap 4a2 and 4b2 is an inner flap that further bends parallel to the top and bottom surfaces to form a trihedral closing structure that covers the top and bottom surfaces in an isosceles trapezoidal shape. The flaps 5a and 5a and the outer flaps 5b and 5b for closing the bottom surface are further inserted from the end 3a and the end 3b, and are folded on the flat top surface of the trihedral closing structure. 5c in the insertion hole 4 Packaging box according to claim 1 or 2, characterized in that the outer flap for fixing the trihedron closure structure engagement with plug into.   Vent holes 7 are formed in the base end flap portions 4a1, 4a1 and 4b1, 4b1 of the top side closing inner flaps 4a, 4a and the bottom side closing inner flaps 4b, 4b of the rectangular side wall plates 2, 2, respectively. The packaging box of any one of Claims 1-3 characterized by the above-mentioned.   The packaging box according to any one of claims 1 to 4, wherein the top structure and the bottom structure have the same structure.   The packaging box according to any one of claims 1 to 5, wherein the one blank sheet is one kind selected from corrugated cardboard and paperboard sheets.

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