JP2009249001A - Engaged closure box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an engaged closure box able to close an opening face easily without damaging an accommodated merchandise and also able to withstand a large load. <P>SOLUTION: In pairs of opposite frame panels 1 and 2 of a peripheral wall, an inner closing flap 4 is connected to one of the opposite frame panels 1, and an outer closing flap 5 is connected to the other frame panel 1. Side closing flaps 6 are connected to the frame panels 2 on both sides. The inner closing flap 4 is folded inside. The side closing flaps 6 are superposed on the inner closing flap 4, and then the outer closing flap 5 is superposed on the side closing flap 6. These flaps are engaged with one another, thereby obtaining the engaged closure box for closing the opening face. In this box, a turned-back piece 7 is connected to the leading end of the outer closing flap 5, and the turned-back piece 7 is folded so as to wrap the steps 6a of the side closing flaps 6. The turned-back pieces 7 are then covered with the inner closing flap 4. This prevents the end edges of the turned-back pieces 7 which may strike a surface of an accommodated merchandise from being exposed inside the box. Since the turned-back pieces 7 are pinched between the inner closing flap 4 and side closing flap 6, the closed state of the opening face is kept. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a meshing closing box that meshes with a flap and closes an opening surface by a self-locking action.

  Generally, as a confectionery box made of paperboard, as shown in FIG. 15 and FIG. 16, of the pair of frame plates 52, 53 of the peripheral wall 51, the opposing frame plate 52 is provided with the inner closed flap 54 and the other frame. An outer closing flap 55 is connected to the plate 52, and side closing flaps 56 are connected to the frame plates 53 on both sides, and these are engaged to close the bottom opening surface.

  The inner closing flap 54 is formed in a U shape having a notch 54 a at the tip intermediate portion, and both side edges are inscribed in the frame plate 53. The outer closing flap 55 has a trapezoidal shape that becomes narrower from the base end to the tip end side, and is provided with a locking piece 55a that protrudes to both sides at the tip end portion. One side edge of the side closing flap 56 is inclined, and a locking piece 56a is provided on the oblique edge side.

  When closing the opening surface of the bottom of the box, the inner closing flap 54 is bent inward, the side closing flap 56 is overlapped on the inner closing flap 54, and the locking piece 56a is pushed into the notch 54a. After that, the outer closing flap 55 is overlapped with the side closing flap 56, and the locking piece 55a is inserted into the notch 54a to be engaged.

  Such a meshing closing box is described in Patent Document 1 below, for example.

Japanese Utility Model Publication No. 31-17088

  However, when the meshing closing structure as described above is applied to a corrugated cardboard box for storing fruits and vegetables, etc., there is a risk that the locking pieces protruding into the box may damage the surface of the fruits and vegetables and reduce the product value. There is also a risk of bottoming out with the weight of.

  Therefore, the present invention is intended to provide a meshing closing box that can easily close an opening surface and can withstand a large load without damaging a product to be stored.

  In order to solve the above-mentioned problems, the present invention provides an inner closing flap on one opposing frame plate, an outer closing flap on the other frame plate, and side closing flaps on both frame plates. In the meshing closing box, the inner closing flap is bent inward, the side closing flap is overlapped with the inner closing flap, the outer closing flap is sequentially overlapped with the side closing flap, and these are meshed to close the opening surface. Folding pieces were continuously provided at the front end of the outer closed flap, the folded pieces were bent so as to wind the step formed on the side closed flap, and the folded pieces were covered with the inner closed flap.

  Further, the folded piece is extended to both sides from the outer closed flap, and a fold line extending from both ends of the boundary with the outer closed flap to the tip direction is put on both sides of the folded piece, and the folding line is bent and restored. The folded piece passes between the side closing flaps and is prevented from coming off.

  In addition, the inner closed flap extends over the entire inner bottom surface, and the steps on the inner bottom surface are eliminated, and both side edges and the leading edge of the inner closed flap are inscribed in the peripheral wall to improve shape retention. .

  In the meshing closed box according to the present invention, when the opening surface is closed, the edge of the folded piece that may hit the surface of the stored product is covered with the inner closing flap and is not exposed in the box, and the product is damaged. Is prevented. In addition, when the product is placed on the inner closed flap at the bottom, the folded piece is pressed through the inner closed flap by the weight of the product, and the return of the folded folded piece is prevented. Etc. can also be accommodated.

  A first embodiment of the present invention will be described with reference to FIGS.

  The mesh closing box shown in FIG. 1 has a cubic shape for packaging spherical fruits and vegetables such as melon as a product, and is formed from a cardboard blank shown in FIG.

  In this blank, a pair of frame plates 1 and 2 are alternately connected to each other, and a passage piece 3 is connected to the outside of one frame plate 2. An inner closing flap 4 is connected to the lower end of one frame plate 1, an outer closing slap 5 is connected to the lower end of the other frame plate 1, and a side closing flap 6 is connected to the lower end of each frame plate 2.

  The inner closing flap 4 has a square shape extending over the entire inner bottom surface of the box. The outer closed flap 5 has a trapezoidal shape that becomes narrower from the base end to the tip end side, and a folded piece 7 is continuously provided at the tip end through a frame portion sandwiched between two ruled lines. One side edge of the side closing flap 6 located on the side opposite to the outer closing flap 5 is inclined, and a step portion 6a is provided on the oblique edge side.

  The folded piece 7 protrudes from the outer closed flap 5 to both sides, and on both sides of the folded piece 7, escape lines 7a extending diagonally outward from the both ends of the boundary with the outer closed flap 5 are inserted.

  A lid receiving flap 8 is connected to the upper end of the frame plate 2, an inner lid flap 9 is connected to the upper end of one frame body 1, and an outer lid flap 10 is connected to the upper end of the other frame plate 1. The inner lid flap 9 and the outer lid flap 10 have a square shape extending over the entire top surface of the box, and the length of the lid receiving flap 8 is about half that of the inner lid flap 9 and the outer lid flap 10.

  At the center of the tip of the lid receiving flap 8 and the inner lid flap 9, there are provided finger insertion notches 8a and 9a for hooking fingers when the lid is opened, and the inner lid flap 9 and the outer lid flap 10 are provided for carrying. For convenience, a semi-annular handle piece 11 is provided with a cut, and a finger insertion notch 11a for raising the handle piece 11 is provided.

  An insertion piece 12 is provided at the center of the front end of the outer lid flap 10, and the insertion piece 12 is provided with a stopper portion 12 a that protrudes on both sides. A slit-like insertion hole 13 is provided at the center of the inner lid flap 9 along the boundary with the frame plate 1, facing the insertion hole 13, and an upper portion of the frame plate 1 has a bowl-shaped cut. The cut piece 14 is provided by inserting a zipper that is intermittent.

  An insertion notch 8b is provided in the outer corner of the front end of the lid receiving flap 8 so that the insertion piece 12 can be inserted into the insertion hole 13.

  When assembling a blank as described above and packaging a product, as shown in FIG. 1, each pair of frame plates 1 and 2 is bent into a square tube shape, and the passage piece 3 is attached to the opposite frame plate 1. After affixing to form a peripheral wall and closing the bottom surface, the product is stored in a box and the top surface is closed.

  When closing the bottom surface, as shown in FIG. 3, with the box turned upside down, the inner closing flap 4 is folded inward as shown in FIG. 4, and then the side closing flap 6 is moved inward. Bend to butt.

  Next, as shown in FIG. 5, when the folded piece 7 is bent so that the stepped portion 6 a of the side closed flap 6 is wound in a state where the inner closed flap 4 is pushed down, both side portions of the folded piece 7 are side closed flap 6. Is folded along the escape line 7a, passes between the oblique edges of the opposite side closing flaps 6 and restored by rebound, and the folded pieces 7 come out from between the side closing flaps 6 Stopped.

  Subsequently, as shown in FIG. 6, when the inner closing flap 4 is restored along with the rebound of the fold at the base end, the folded piece 7 is covered with the inner closing flap 4, and the inner closing flap 4 and the side closing flap are covered. 6, the closed state of the opening surface is maintained.

  Then, as shown in FIG. 7, when the product G is put in the box from the top opening and the product G is placed on the inner flap 4, the inner weight of the product G Since the folded piece 7 is pressed through the closed flap 4 and the return of the folded piece 7 is prevented from returning, the bottom is prevented from coming off. Further, the edge of the folded piece 7 is not exposed in the box, and the product G is prevented from being damaged.

  Thereafter, as shown in FIG. 1, the lid receiving flaps 8 are bent so as to abut against each other, the inner lid flap 9 and the outer lid flap 10 are sequentially stacked on the lid receiving flap 8, and the insertion piece 12 is fixed to the stopper portion. If it inserts in the insertion hole 13 in the state which folded 12a inside, the stopper part 12a will restore | restore, the insertion piece 12 will be prevented from coming off from the insertion hole 13, and a sealing state will be maintained.

  The box thus sealed can be easily carried by gripping the handle piece 11 by putting the finger into the finger insertion notch 11a and raising the two handle pieces 11 in an overlapping state.

  Moreover, it can open by cutting out the cut piece 14, forming a notch part in the upper end part of the frame board 1, and extracting the insertion piece 12 through the notch part. Since this box cannot be opened unless the cut piece 14 is cut off, tampering with the product can be prevented.

  Next, a second embodiment of the present invention will be described with reference to FIGS.

  The meshing closing box shown in FIG. 8 is a non-covered, bottomed hexagonal cylindrical shape used for displaying spherical fruits and vegetables such as watermelon, and is formed from a cardboard blank shown in FIG.

  In this blank, two pairs of frame plates 2 with a pair of frame plates 1 are connected so that the frame plates 2 are adjacent to each other at the center, and a passage piece 3 is provided on the outside of one frame plate 2. Has been. An inner closing flap 4 is connected to the lower end of one frame plate 1, and an outer closing slap 5 is connected to the lower end of the other frame plate 1, and the lower end of the frame plate 2 is laterally closed on both sides of the inner closing flap 4. Side flaps 15 are continuously provided on both sides of the outer flaps 5 and the flaps 6, respectively.

  The inner closing flap 4 has a hexagonal shape over the entire inner bottom surface of the box. The outer closed flap 5 has a trapezoidal shape that becomes narrower from the base end to the tip end side, and a folded piece 7 is continuously provided at the tip end through a frame portion sandwiched between two ruled lines. The side closing flaps 6 and 15 have oblique edges corresponding to the shape of the bottom of the box, and a step portion 6 a is provided on the inner oblique edges of the pair of long side closing flaps 6.

  The folded piece 7 protrudes from the outer closed flap 5 to both sides, and escape lines 7 a extending from both ends of the boundary with the outer closed flap 5 to the front end are put on both sides of the folded piece 7.

  When assembling the blank as described above and displaying the product, as shown in FIG. 8, the pair of frame plates 1 and the two pairs of frame plates 2 are folded into a hexagonal cylinder, and the passage pieces 3 are opposite to each other. Attached to the side frame plate 1 to form a peripheral wall, closes the bottom surface, and then stores the product in the box.

  When closing the bottom surface, as shown in FIG. 10, with the box turned upside down, the inner closing flap 4 is folded inward as shown in FIG. 11, and then as shown in FIG. The side closing flap 15 is bent so as to abut on the inside, and the side closing flap 6 is folded so as to abut on the inside, overlapping with this.

  Next, when the folded piece 7 is folded so that the inner closed flap 4 is pushed down and the stepped portion 6a of the side closed flap 6 is wound, as shown in FIG. 13, both sides of the folded piece 7 are the inner edges of the side closed flap 6. It is folded along the escape line 7 a while abutting on the portion, passes between the inner edges of the opposing side closing flaps 6, and then restored by repulsion, so that the folded pieces 7 are prevented from coming off between the side closing flaps 6. .

  Subsequently, when the inner closed flap 4 is restored along with the repulsion of the fold at the base end, the folded piece 7 is covered with the inner closed flap 4 and sandwiched between the inner closed flap 4 and the side closed flap 6. The closed state of the opening surface is maintained.

  Then, as shown in FIG. 14, when the product G is placed in the box through the top opening and the product G is placed on the inner flap 4, the inner weight of the product G Since the folded piece 7 is pressed through the closed flap 4 and the return of the folded piece 7 is prevented from returning, the bottom is prevented from coming off. Further, the edge of the folded piece 7 is not exposed in the box, and the product G is prevented from being damaged.

  In the above embodiment, the inner closed flap 4 extends over the entire bottom surface of the box. However, the inner closed flap 4 covers the folded piece 7 and both side edges are inscribed in the frame plate 2 to keep the peripheral wall. As long as it can be shaped, it may be of a size that does not reach the frame plate 1 facing the tip.

  In order to close the opening surface at the bottom of the box, the inner closing flap 4, the outer closing flap 5 and the side closing flap 6 are engaged with each other. Such a meshing structure may be adopted.

The perspective view which shows the assembly state of the meshing closing box which concerns on 1st Embodiment. The figure which shows the blank of a meshing closing box same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closed state of a bottom part opening surface same as the above. Vertical side view showing the product storage state The perspective view which shows the assembly state of the meshing closing box which concerns on 2nd Embodiment. The figure which shows the blank of a meshing closing box same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closing process of the bottom opening surface same as the above The partial perspective view which shows the closed state of a bottom part opening surface same as the above. Vertical side view showing the product storage state The perspective view which shows the closing process of the bottom part opening surface of the conventional meshing closing box Bottom view showing the closed state of the bottom opening surface

Explanation of symbols

1, 2 Frame plate 3 Passage piece 4 Inner closing flap 5 Outer closing flap 6 Side closing flap 6a Step 7 Folding piece 7a Retract line 8 Lid receiving flap 8a Finger insertion notch 8b Insertion notch 9 Inner lid flap 9a Finger insertion notch 10 outer lid flap 11 handle piece 11a finger insertion notch 12 insertion piece 12a stopper part 13 insertion hole 14 cut piece 15 side closing flap

Claims (3)

  Out of the frame plates (1, 2) that form the peripheral wall, the opposing frame plate (1) has the inner closed flap (4), the other frame plate (1) has the outer closed flap (5), Side closing flaps (6) are connected to the frame plate (2), the inner closing flap (4) is bent inward, the inner closing flap (4) is closed with the side closing flap (6), and the side closing flap (6). The outer closing flap (5) is sequentially stacked and meshed with each other to close the opening surface, and a folding piece (7) is continuously provided at the tip of the outer closing flap (5), and the side closing flap ( A meshing closing box characterized in that the folded piece (7) is bent so as to wind the step (6a) formed in 6), and the folded piece (7) is covered with an inner closing flap (4).   The folded piece (7) is extended from the outer closed flap (5) to both sides, and the folding line (7) has a fold line extending in the distal direction from both ends of the boundary with the outer closed flap (5) ( The meshing closing box according to claim 1, further comprising 7a).   The meshing closing box according to claim 1 or 2, wherein the inner closing flap (4) extends over the entire inner bottom surface.

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