JP2002193240A - Box which can be resealed - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a box which can improve the workability in assembling and can be readily opened and resealed in a box with excellent air permeability due to its top opening. SOLUTION: This box is provided with a pair of inner flaps folded inwardly and oppositely and a pair of outer flaps folded onto the inner flaps oppositely at the upper edges of four connecting side surfaces, and a ventilation opening is provided at the top surface of the box when the pair of inner flaps and outer flaps are folded. Each inner flap is provided with a pair of engaging holes in the shape of inverted V toward the score to which the inner flap is connected, each outer flap is formed with two scores in a slant direction from both ends of the score to which the outer flap is connected toward the edge of the outer flap to form inserting pieces with substantially chevron shape at the right and the left corners of the edge of each outer flap, and each inserting piece engageable to the engaging hole is formed with a lock piece or a locking groove by being cut.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resealable packaging box useful for transporting agricultural products and horticultural products such as fresh vegetables, fruits, and flowers.

[0002]

2. Description of the Related Art Conventionally, when fresh vegetables, fruits or flowers are packed in a box and shipped, a large number of pieces are shipped at a time, so that a box of the JIS-Z1507 0201 type (former A-1 type) is easy to assemble. Is often used. This box is a rectangular parallelepiped box in which four rectangular side plates are connected in one direction, and the bottom and top surfaces of the box are closed above and below the four side plates. is there. After storing the items in this box, when closing the top surface of the box, close it so that an opening is provided by the inner and outer flaps,
As shown in FIG. 9, the overlapping portion of the inner and outer flaps is mainly shipped with the four corners of the top surface stopped by metal fittings S called staples.

[0003]

However, in the operation of closing the lid by the above-described staple method, it is necessary to prepare a staple and a staple driving machine each time the lid is sealed. In addition, since the sealing operation occupies most of the time in the box assembling operation, it is desired to improve the workability. Also, shipping boxes for agricultural products such as fresh vegetables are generally
Inspection is performed in the course of distribution after storing the articles, and the box is opened to inspect the stored articles for any abnormalities. After inspection, close the box, reseal it, and transport it. However, with the conventional box in which the four corners of the top surface are stopped by metal fittings, it is not easy to open at the time of inspection, the flap on the top surface of the packaging box is often damaged or the appearance is impaired, and when resealing, staples or tapes must be renewed. It has the drawback of requiring resealing when used, making resealing difficult when the flap is damaged. Furthermore, when disposing of used boxes, if the staples are driven into the boxes, the staples are metal and cannot be incinerated together with combustible materials such as paper, so that they need to be separated. In addition, even when a used box is reused as used paper, there is a problem that it takes time to separate metals from paper pieces as impurities. Thus, the environmental problems associated with the disposal of packaging waste have not been solved.

SUMMARY OF THE INVENTION An object of the present invention is to eliminate the use of staples and to solve the problems of workability in assembling a box and environmental problems after use, to facilitate opening in preparation for inspection and the like, and to provide a reliable resealing function. Further, the present invention provides a packaging box having breathability so that articles packed in a box are not stuffy during cargo handling and easy to reseal.

[0005]

Means for Solving the Problems To solve the above problems, the box of the present invention employs the following means. (1) A pair of inner flaps which are folded inward opposite to each other and a pair of outer flaps which are folded opposite to each other on the inner flap are provided at upper ends of the four side surfaces connected to each other. In a packaging box in which an opening is formed in a box top surface in a state in which a flap and a pair of outer flaps are folded, the pair of inner flaps have a V-shape toward a fold line where the inner flap is connected to the side surface. A pair of engaging holes are respectively arranged in a shape (the connecting fold line side is widely spaced),
On the other hand, two fold lines are formed in the outer flap in a diagonal direction from both ends of the fold line where the outer flap is connected to the side surface toward the leading edge of the outer flap, so that the left and right corners of the tip of the outer flap are formed. A substantially angled insertion piece is formed at each of the insertion pieces, and each of the insertion pieces is separated from the oblique fold line by a cut line near the fold line or connected to the insert piece on the opposite side. A lock piece having a bent line is formed by cutting. (2) The chevron-shaped insertion piece formed on the outer flap of the re-sealable box has a step substantially parallel to the oblique fold line at the outer edge on the tip side of the outer flap. It is characterized by the following. (3) A pair of inner flaps are provided at the upper ends of the four side surfaces connected to each other and are folded inward and opposed to each other, and a pair of outer flaps are provided to be folded on the inner flaps and are opposed to each other. In a packaging box in which an opening is formed in a box top surface in a state in which a flap and a pair of outer flaps are folded, the pair of inner flaps have a V-shape toward a fold line where the inner flap is connected to the side surface. A pair of engaging holes are respectively arranged in a shape (the connecting fold line side is widely spaced),
On the other hand, two fold lines are formed in the outer flap in an oblique direction from both ends of the fold line where the outer flap is connected to the side surface toward the leading edge of the outer flap, so that the left and right corners of the tip of the outer flap are formed. A substantially mountain-shaped insertion piece is formed in the portion, and a step portion substantially parallel to the diagonal folding line is formed on the insertion piece at the outer edge portion on the tip side of the outer flap, and the step portion is recessed. By forming a groove in the portion, a projection that can be engaged with the engagement hole is formed.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments. In this embodiment, a description will be given of a packaging box suitable for maintaining freshness and having air permeability so as not to be stuffy during transportation, particularly when fresh vegetables such as corn are shipped.

<First Embodiment> FIG. 1 shows a sheet (also referred to as a blank) before assembly for forming a cardboard box according to a first embodiment. The blank 10 is an example. It is formed from a single substantially corrugated cardboard sheet, but it can also be formed from paperboard.

The box shown in the present embodiment is a
In the center of the box 0, a pair of rectangular side plates 11 and 11 forming a long surface (long surface) and rectangular side plates 12 and 12 forming a short surface (width surface) are formed by folding lines. Are connected in one direction via A pair of side plates 12, 12 are provided with a handle hole 13 at the center thereof. A pair of bottom outer flaps 14, 14 and a bottom inner flap 15, 15 are connected to the lower portion of each of the pair of side plates 11, 11, 12 and 12 via folding lines. In addition, the top outer flaps 16, 16 and the top inner flaps 17, 17 are connected to the upper portions of the pair of side plates 11, 11, 12, 12 via folding lines.

In the present invention, both top flaps 16 and 1
The length F1 in the length direction of the side plate 1 constitutes the width of the box.
The length W is formed to be shorter than 1/2 of the width dimension W of No. 2. Therefore, when the top flaps 16 and 17 are overlapped and the top of the box is sealed at the time of assembling the box, an opening 18 suitable for ventilation is formed in the top of the box (see FIG. 2). On the other hand, the dimension F2 in the length direction of each of the bottom flaps 14 and 15 is formed to be half the width dimension W of the side plate 12 constituting the width surface of the box.
When sealing the bottom surface of the box by overlapping 4 and 15, the entire bottom surface is closed. Reference numerals 19, 19a and 19b are:
A glue margin connected to the end of the side plate 11 and a glue margin provided at both ends thereof.

<Locking mechanism of canopy> By the way, the above-mentioned outer flaps 16 and 16 and the inner flaps 17 and 1
7, a canopy lock mechanism having the following configuration is formed. That is, a pair of engagement holes 20a and 20b are provided in a U-shape toward the fold line, respectively, near the fold line (joint fold line) where the inner flaps 17 and 17 for the top surface are connected to the side surface. The shape of each engagement hole is not particularly limited.
On the other hand, the top outer flaps 16, 16 are formed by forming two fold lines 21 a, 21 b diagonally from both ends of the fold line connected to the top outer flap toward the top edge of the top outer flap. On the left and right sides of the tip of the outer flap for the top surface, there are provided angled insertion pieces 22a and 22b, and the insertion piece has a step 23a parallel to the oblique fold line 21a at the outer edge of the outer flap tip side. , 23b.
Also, the lock pieces 24a, 24b are provided near the angled insertion pieces 22a, 22b in the vicinity of the oblique fold lines 21a, 21b.
b is provided as a substantially U-shaped cut so that the fold lines 21a and 21b are separated by a cut line. 25
Reference numerals a and 25b denote folding lines provided at the bases of the lock pieces so that the lock pieces are connected to the insertion pieces.

In order to assemble a blank having such a configuration, the four side plates 11, 11, 12, and 12 are combined with a glue allowance of one.
After being connected in the shape of a square tube via 9, 19a, 19b, the outer flaps 14, 14 for the bottom surface and the inner flaps 15, 1, 1 for the bottom surface
Glue 5 and seal the bottom. After assembling the box in this way, the stored items are stored in the box. Further, when the top surface is sealed with the top outer flaps 16 and 16 and the top inner flaps 17 and 17, first, the top inner flaps 17 and 17 are connected to the inside of the box by a fold line connecting the side plate 12. Bend to Next, the outer flaps 16, 16 for the top surface are
While being bent inward at the connecting fold line, the angled insertion pieces 22a and 22b are inserted obliquely from above into the C-shaped engagement holes 20a and 20b through the diagonal fold lines 21a and 21b. At this time, the mountain-shaped insertion pieces 22a, 2
The lock pieces 24a and 24b provided on the inner flaps 17a and 17b hit the edges of the engagement holes 20a and 20b provided on the inner flaps 17 for the top surface, and the insertion pieces 22a and 22b are engaged with the engagement holes 20a and 20b.
When the lock pieces 24a and 24b are removed from the engagement holes 20a and 20b, the lock pieces 24a and 24b
The inner flaps 17 for the top surface are sandwiched from above and below by the lock pieces 22a and the lock pieces 24a and 24b (FIG. 3). in this case,
Even if the insertion pieces 22a, 22b come out of the engagement holes 20a, 20b due to the repulsive force of the fold lines 21a, 21b, the lock pieces 24a, 24b work as check valves to prevent it, so that the inner and outer flaps on the top surface are overlapped. Fitting part (four corners of the top)
In the same manner as in the case where the inner and outer flaps are closed by staples, the inner and outer flaps are prevented from opening.

Therefore, as shown in FIG. 2, even if the box has an opening 18 in the top surface, the outer flaps 16 and 16 for the top surface and the inner flaps 17 and 17 for the top surface are opened carelessly during cargo handling. It can be fixed securely without any. When opening the top of the box, such as when inspecting stored items, the top ends of the outer flaps 16, 16 for the top are forcibly pulled upward, and the lock pieces 24a, 24b are folded along the folding lines 25a, 25b. The top of the box can be easily opened by reversing the part with the fulcrum.

<Second Embodiment> FIG. 5 shows a blank for forming a cardboard box of a second embodiment.
This blank 30 is formed from a corrugated cardboard sheet as in the first embodiment. Since the configuration of the entire box in this embodiment is substantially the same as that of the first embodiment,
The same portions are denoted by the same reference numerals, and the description of each member will be omitted. Hereinafter, only different points will be described in detail.

In this embodiment, as shown in FIG. 5, similarly to the first embodiment, the inner flaps 17, 17 for the top surface are provided.
A pair of engagement holes 20a and 20b are respectively provided in the shape of a letter C in the vicinity of a fold line (joint fold line) connected to the side surface. The shape of each engagement hole is not particularly limited. On the other hand, two fold lines 21a and 21b are formed on the top outer flaps 16 and 16 obliquely from both ends of the connecting fold line toward the leading edge of the flap, so that the top outer flaps Small angled insertion pieces 22a and 22b are provided on both left and right sides of the tip, and the angled insertion piece has an oblique fold line 21 at the outer edge of the outer flap tip side.
Steps 23a and 23b are formed substantially in parallel with a, and locking recesses 26a and 23b are formed in the recessed portions of the steps 23a and 23b.
26b, the engagement holes 20a, 20
The projections 27a and 27b are formed so as to be engaged with the b.

Therefore, as shown in FIG. 7, when the angled insertion pieces 22a and 22b are inserted obliquely from above toward the engagement holes 20a and 20b via the oblique folding lines 21a and 21b, the angled insertion pieces 22a , 22b formed with locking grooves 26a, 26b provided in locking grooves 26a, 26b.
b engages with the edges of the engagement holes 20a and 20b. Insert 2
2a and 22b are pulled upward to form the engagement holes 20a and 2b.
0b, the protrusions 27a and 27b and the edges of the engagement holes are strongly engaged, and the top outer flap 16 is locked. Therefore, the insertion pieces 22a, 22b
Are rebounded by the folding lines 21a, 21b.
Since the projections 27a and 27b prevent the user from slipping out of the box b, the overlapped portion (four corners of the top surface) of the inner and outer flaps on the top surface is fixed with staples. It has the effect of securely fixing the inner and outer flaps.

In the case of this embodiment, when the top of the box is opened for inspection or the like, the outer flap 1 for the top is used.
When the engaging portions of the inner flaps 17 and 17 are forcibly pushed downward, the projections 27a and 27b and the engaging holes 20
Since the engagement with a and 20b is loosened and the lock is released, if the top outer flaps 16 and 16 are slowly pulled up in this state, the top of the box can be easily opened.

[0017]

As described above, according to the structure of the present invention, the use of staples for sealing a box can be abolished, the workability of assembling the box and environmental problems can be improved. It is possible to provide a packaging box that can be easily opened in preparation for inspection work, has a reliable and easy reseal function, and has air permeability so that boxed articles do not become stuffy during transportation. You can do it.

[Brief description of the drawings]

FIG. 1 is a plan view of a blank showing one embodiment of a box according to the present invention.

FIG. 2 is an assembled perspective view of the box of the embodiment.

FIG. 3 is a partially enlarged sectional view showing an engagement state between an insertion piece and an engagement hole in the embodiment.

FIG. 4 is a partially enlarged plan view of the same.

FIG. 5 is a plan view of a blank showing another embodiment of the box according to the present invention.

FIG. 6 is an assembled perspective view of the box of the embodiment.

FIG. 7 is a partially enlarged sectional view showing an engagement state between the insertion piece and the engagement hole in the embodiment.

FIG. 8 is a partially enlarged plan view of the same.

FIG. 9 is a perspective view of a conventional packaging box in which four corners of the top surface are stopped by metal fittings S called staples.

[Explanation of symbols]

 10, 30 blank 11 side plate 12 side plate 13 handle hole 14 bottom outer flap 15 bottom inner flap 16 top outer flap 17 top inner flap 18 opening 19 glue allowance 20a, 20b engaging hole 21a, 21b oblique direction Folded lines 22a, 22b Angled inserts 23a, 23b Steps 24a, 24b Lock pieces 25a, 25b Folded lines 26a, 26b Lock grooves 27a, 27b Projections

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shinya Osawa 2-3-4 Nishiki, Naka-ku, Nagoya-shi, Aichi Nagoya Branch, National Federation of Agricultural Cooperatives (72) Inventor Fumio Asada Nishiyukicho, Toyohashi-shi, Aichi 111 Kasamatsu Aichi Prefecture Economic and Agricultural Cooperative Federation Association (72) Inventor Masayuki Komatsu 75 Sakaemachi Nezaki, Toyoake City, Aichi Prefecture Chubu Oji Danboru Co., Ltd.Nagoya Division (72) Inventor Masataka Urata 4 Ginza, Chuo-ku, Tokyo 7-7-5 Oji Paper Co., Ltd. F term (reference) 3E035 AA11 BA01 BB08 BB10 CA02 3E060 AA03 AB05 BA08 BC02 BC04 CA12 CA23 DA16 DA19 DA25 EA06 EA12

Claims (3)

[Claims] 1. A pair of inner flaps which are folded inward facing each other at an upper end of four connecting side surfaces, and a pair of outer flaps which are folded on the inner flaps facing each other are provided. The inner flap and the pair of outer flaps are folded and an opening is formed in the box top surface in a state where the inner flap is folded toward the fold line where the inner flap is connected to the side surface. A pair of engagement holes are respectively arranged in the shape of a square, and two fold lines are formed in the outer flap in a diagonal direction from both ends of the fold line connecting the outer flap to the leading edge of the outer flap. By doing so, a substantially angled insertion piece is formed at the left and right corners of the tip of the outer flap, and each of the insertion pieces has the fold line side close to or on the diagonal fold line. Cut Disconnected, the lock piece having a fold line which connects the insertion portion on the opposite side, again sealing possible boxes, characterized in that it is cut form. 2. A chevron-shaped insert formed on the outer flap of the re-sealable box has a step substantially parallel to the diagonal fold line at the outer edge of the outer flap on the tip side. The resealable box of claim 1, wherein 3. A pair of inner flaps which are folded inward facing each other at upper ends of four side surfaces connected to each other, and a pair of outer flaps which are folded over the inner flaps facing each other are provided. The inner flap and the pair of outer flaps are folded and an opening is formed in the box top surface in a state where the inner flap is folded toward the fold line where the inner flap is connected to the side surface. A pair of engagement holes are respectively arranged in the shape of a square. On the other hand, the outer flap has two fold lines obliquely from both ends of a fold line where the outer flap is connected to the side surface toward the leading edge of the outer flap. By being formed, a substantially mountain-shaped insertion piece is formed at the left and right corners of the tip of the outer flap, and the insertion piece has an outer edge portion on the tip side of the outer flap, which is substantially along the oblique fold line. flat A stepped portion is formed, by cutting into the groove in recessed portion of the stepped portion, re-sealing can box, characterized in that the engagement can be fastened relates to engagement hole projection is formed.