JP2900302B2 - Cardboard return box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated cardboard which is useful for storing, storing or transporting articles such as clothes, miscellaneous goods, food, cosmetics, etc., and then folding or storing or forwarding an empty box. About return box.

[0002]

2. Description of the Related Art A corrugated cardboard box of this type has conventionally been proposed in various shapes and structures and is widely used.

FIG. 13 shows an example of a conventionally used corrugated cardboard box, which is a perspective view from the bottom plate side, and FIG.
FIG. 4 is a perspective view showing a state in which the cardboard box shown in FIG. 13 is folded.

The conventional cardboard box shown in FIG. 13 is composed of one end plate 51, one side plate 52, the other end plate 53, the other side plate 54, first, second, third, and third plates. A bottom plate, in which the components 55, 56, 57, 58 of FIG. 4 are assembled, and a cover plate (not shown) are assembled into a box.

The hatched portion of the bottom plate is
This shows a portion bonded with an adhesive.

[0006]

However, the conventional corrugated cardboard box of the prior art has the first to fourth components 55 to 5 of the bottom plate.
8 and the cover plate are folded into the inside of the box, and even when folded flat, as shown in FIG.
However, there is a problem that the size is not always satisfactory when folded and stored or transported when folded and stored.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, to have a simple shape and structure, to be extremely compact, thin and orderly foldable, and to be able to strongly retain the shape when used. An object of the present invention is to provide a corrugated cardboard return box that can be easily retained.

Another object of the present invention is to provide a corrugated cardboard box that can be formed by simply punching out a rational template by effectively utilizing one piece of corrugated cardboard.

[0009]

In order to achieve the above object, in a corrugated cardboard box constituted by connecting at least both end plates, both side plates, a bottom plate and a lid plate, each end plate has a side plate side bottom plate. Provided on the upper surface of the end plate side bottom plate to be superimposed, in the state where the end plate side bottom plate is overlapped between both end plate side bottom plates, to form an elongated substantially U-shaped latch groove on each side plate side when viewed from a plane, The side plates are provided with side plate reinforcing plates that are bent inside the side plates and reinforced, and each of the side plate reinforcing plates is provided at a lower end portion in a state where the side plates are bent inside the side plates, with a hook formed between the two bottom plates and the bottom plate. Provide a projection that fits into the stop groove,
The side plate side bottom plate is configured by arranging a half portion and another half portion bent from the bottom side of each side plate, and a connection plate is provided on one side portion of the side plate side bottom plate and one side portion of the other half portion, and a side plate side bottom plate One half of the bottom plate is connected to a part of one bottom plate via a connection plate, and the other half of the bottom plate is connected to a part of the other bottom plate via a connection plate, and assembled in a box. A hook provided at an end of the side plate reinforcing plate bent inside the side plate is hooked into a locking groove formed on each side plate side of the both end plate side bottom plate superimposed on the side plate side bottom plate. By forming a strong box, by opening the lid plate, and pulling out the reinforcing plate for each side plate upwards from the inside of the side plate, or after further bending it outward, the side plate side bottom plate A set of one half and one bottom plate, and the other half of the bottom plate and the other bottom plate While folding the set of bottom plates at the fold line at the boundary between the half plate or the other half of the side plate side bottom plate and the connecting plate, respectively, pull it up inside the box and provide it to the half plate of the side plate side bottom plate and this A set of the connecting plate and one end plate-side bottom plate, the other half of the side plate-side bottom plate, and a set of the connecting plate and the other end plate-side bottom plate provided therein are folded into the inside of the box body, and one side plate is further folded. And a set of the other half of the reinforcing plate for the side plate and the side plate side bottom plate, and a set of the other half of the reinforcing plate for the side plate and the other half of the side plate side bottom plate, respectively, provided at the center in the length direction. It is foldable inside the box at the point of the line so that it can be folded.

In order to achieve the above object, according to the present invention, one end plate and one side plate, and the other end plate and the other side plate are connected to each other via a folding line in the longitudinal direction of the cardboard base paper. A connecting piece is attached to an end of one of the base plates or the other side plate, and a base plate-side bottom plate is provided on one side of each base plate via a folding line in a width direction orthogonal to the length direction of the base paper. A notch for forming a substantially U-shaped locking groove, which is elongated in a plan view, on each side plate in a state where both end plates are overlapped on the side plate on the side plate, at both ends in the length direction. The other side of one end plate is provided with a half of the cover plate via a fold line, and the other side of the other end plate is provided with the other half of the cover plate via a fold line. One side of the side plate has a half of the side plate side bottom plate through a fold line, and one side of the other side plate The other half of the side plate-side bottom plate is provided via the folding line, and the other side of each side plate is provided with the reinforcing plate for the side plate via the folding line, and the reinforcing plate for each side plate is provided at the outer end in the width direction. In the state assembled in the box body, a protruding piece is provided which fits into a locking groove formed between the bottom plates on both sides, and a flat cover plate is provided between each side plate reinforcing plate and each side plate. Provide a mounting portion for, a set of one side plate reinforcing plate and the half of the side plate and the side plate side bottom plate, and the other set of the side plate reinforcement plate and the other half of the side plate and the side plate side bottom plate, A folding line is provided at the center in the longitudinal direction, and a connecting plate is provided on one half of the side plate-side bottom plate and one side of the other half via a folding line, and attached to the one end plate or the other side plate. The connection piece thus formed is connected to the other side plate or one end plate, and the connection plates provided on one half and the other half of the side plate-side bottom plate are applied. Connected to a part of the bottom plate side bottom plate, one half of the side plate side bottom plate and the other half are lined up on the bottom of the box to form a bottom plate, and reinforced by overlapping the bottom plate side plate provided for each wife plate on this bottom plate Then, the reinforcing plate for the side plate is bent and reinforced inside each side plate, and the protrusion provided on the reinforcing plate for the side plate is formed in a retaining groove formed between the both bottom plates on the side plate which is overlapped on the bottom plate on the side plate. The piece is hung and retained, so that the edge of the lid is placed on the mounting portion for the lid plate.

[0011]

According to the present invention, both end plates, both end plates, a side plate side bottom plate formed by arranging one half and the other half bent from the bottom of each side plate, a cover plate, and a side plate provided on each end plate are provided. Two bottom plates on the upper side of the side bottom plate for reinforcement, a reinforcing plate for the side plate provided on each side plate and bent inside the side plates for reinforcement, and both ends in the longitudinal direction of each bottom plate on the bottom plate In the state where a cutout portion is provided and assembled in a box body, a latching groove formed by the cutout portion on each side plate side of the double bottom plate side bottom plate superimposed on the side plate side bottom plate, and a reinforcing plate for each side plate A protruding piece that is provided at the outer end in the width direction and that is hooked on the locking groove in a state where each side plate reinforcing plate is bent inside the side plate, one half of the side plate side bottom plate and one side of the other half And a connecting plate connected to a part of the bottom plate on the end plate side. Because there, the shape, the structure both simple and fabrication of the mold plate, and can be carried out with simple assembly of the box, yet, by the engagement between the latching groove and protrusion,
For example, even when a force is applied from below, the bottom does not rise, and a solid box strong against external force can be obtained.

Further, in the present invention, both end plates are provided with end plates on the side plate side to be reinforced on the side plate side bottom plate, and each side plate is provided with a reinforcing plate for the side plate which is bent inside the side plate and reinforced. Between the bottom plates, on each side plate side, an elongated substantially U-shaped locking groove is formed, and each side plate reinforcing plate is provided with a protruding piece that fits into the locking groove in a state assembled in a box body. With these reinforcing members, the box body can be reinforced firmly in the assembled state and can be retained, and the edge of the lid can be placed on the mounting portion for the lid plate. There are no gaps, and there are no drops inside.

Further, in the present invention, the lid plate is opened, and the reinforcing plate for each side plate is pulled out upward from the inside of the side plate, or further bent outward, and then the bottom plate for the side plate is opened. As one half and one set of the bottom plate-side bottom plate, and the other half of the side plate-side bottom plate and the other set of the bottom plate-side bottom plate are pulled upward inside the box body, one half of the side plate-side bottom plate is provided on this. The pair of the connecting plate and the one bottom plate-side bottom plate, the other half of the side plate-side bottom plate, and the pair of the connecting plate and the other bottom plate-side bottom plate provided therein are folded into the inside of the box, and then A set of a side plate, a reinforcing plate for the side plate, and a half of the side plate side bottom plate, and a set of the other side plate, a pair of the reinforcing plate for the side plate, and the other half of the side plate side bottom plate, which are formed at the center in the length direction. By simply crimping the inside of the box at the point of the line, it is easy and almost equivalent to the size of the wife plate Small to, yet in a very thin Te,
It can be folded neatly, and by following the reverse of the procedure described above, it is very easy to keep the mold in use.

Further, in the present invention, one end plate, one side plate, the other end plate, and the other side plate are connected via a folding line in the length direction of the cardboard base paper, and one end plate or the other end plate is connected. A connecting piece is attached to the end of the side plate, and in the width direction orthogonal to the length direction of the base paper, a side plate of the end plate is provided on one side of each end plate via a folding line, and the length direction is provided on each end plate side bottom plate. At both end portions, a notch portion is formed on each side plate side to form a slender, substantially U-shaped locking groove as viewed from a plane in a state where the both bottom plate side plates are overlapped on the side plate side bottom plate,
One half of the cover plate is provided on the other side of one end plate via a fold line, and the other half of the cover plate is provided on the other side of the other end plate via a fold line. Is provided with one half of the side plate side bottom plate through a fold line, and the other side plate is provided with another half of the side plate side bottom plate through a fold line, and the other side of each side plate is provided with a fold line The side plate reinforcing plate is provided, and each side plate reinforcing plate is fitted at the outer end in the width direction with a locking groove formed between the end plates on the side of the both end plates in a state of being assembled into a box. The set of one half of the reinforcing plate for one side plate, the side plate and one half of the side plate side bottom plate, and the other set of the reinforcing plate for the side plate and the other half of the side plate and the side plate side bottom plate have lengthwise directions, respectively. A folding line is formed at the center, and a connecting plate is provided on each side of one half of the side plate-side bottom plate and one side of the other half via a folding line. The connecting piece attached to the other side plate is connected to the other side plate or one end plate, and further, the connecting plate provided on one half and the other half of the side plate side bottom plate is connected to a part of the end plate side bottom plate, One half and the other half of the side plate side bottom plate are arranged on the bottom of the box body to form a bottom plate, and the bottom plate side bottom plate provided for each wife plate is superimposed on the bottom plate to reinforce, and the side plate is provided inside each side plate. The reinforcing plate for the side plate is bent and reinforced, and the protrusion provided on the reinforcing plate for the side plate is retained in the retaining groove formed between the bottom plates on both the side plates superimposed on the bottom plate to hold the mold. As can be seen from FIG. 1, a box can be formed by effectively using a substantially rectangular piece of corrugated cardboard, and a template having a reasonable shape can be easily punched and formed. .

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 9 show a first embodiment of the present invention. FIG. 1 is an exploded view of a box body showing a template, FIG. 2 is a perspective view showing a use state, and FIG. 3 is a sectional view taken along the line AA of FIG. 2, FIG. 4 is a perspective view showing a state in which the cover plate and the side plate reinforcing plate are opened,
FIG. 5 is a perspective view of the assembled box in which the upper part of the box is cut off, FIG. 6 is a perspective view of the same seen from the bottom of the box, FIG.
FIG. 8 is a perspective view showing a process of folding the box, and FIG. 9 is a perspective view of the folded state.

In the first embodiment shown in these figures, as shown in FIG. 1, a box template 1 is connected to one end plate 2 via a folding line 31 in the length direction y of the cardboard base paper. The one side plate 3, the other end plate 4, and the other side plate 5 are provided continuously. Further, in this embodiment, the connecting piece 6 is provided at the end of the one end plate 2 via the folding line 31, but this connecting piece 6 may be provided at the end of the other side plate 5.

On one side of the one side plate 3 in the width direction x,
One half 7 of the side plate-side bottom plate and the connecting plate 9 are provided continuously, and the other side has a mounting portion 12 for a lid plate, a reinforcing plate 14 for a side plate,
The projecting piece 16 is provided continuously. One half 7 of the side plate-side bottom plate is formed in a substantially trapezoidal shape, and a folding line 32 is formed on one side plate 3.
Is provided via The connecting plate 9 is provided on one side of the half part 7 of the side plate-side bottom plate via a folding line 33. The mounting portion 12 for the cover plate is formed between folding lines 34 and 35 provided at a predetermined interval, and is provided on one side plate 3 via the folding line 34. The side plate reinforcing plate 14 is connected to the placing section 12 via a folding line 35. The protruding piece 16 is integrally provided at an outer end portion in the width direction x of the side plate reinforcing plate 14, and the notch 1
The predetermined length is set by 8, 18. This protruding piece 1
A semicircular cutout 19 for hanging a finger when folded is formed at a substantially middle portion in the length direction y of 6.

A fold line 36 for folding is provided at the center in the longitudinal direction y of the projecting piece 16, the side plate reinforcing plate 14, one side plate 3, and one half 7 of the side plate bottom plate. ing.

On one side of the other side plate 5 in the width direction y,
The other half 8 of the side plate-side bottom plate and the connecting plate 10 are continuously provided, and the other side has a mounting portion 13 for a cover plate and a reinforcing plate 15 for a side plate.
And the protruding piece 17 are continuously provided. The other half 8 of the side plate-side bottom plate is also formed in a substantially trapezoidal shape, and is provided on the other side plate 5 via a folding line 32. The connecting plate 10 is provided on one side of the other half 8 of the side plate-side bottom plate via a folding line 33. The mounting portion 13 for the lid plate is formed between folding lines 34 and 35 provided at a predetermined interval, and is provided on the other side plate 5 via the folding line 34. The side plate reinforcing plate 15 is connected to the mounting portion 13 via a folding line 35. The protruding piece 17 is integrally provided at an outer end of the side plate reinforcing plate 15 in the width direction x, and is set to a predetermined length by the notches 18. A semi-circular cutout 19 on which a finger is put when folded is formed at a substantially middle portion in the length direction y of the protruding piece 17.

A fold line 36 for folding is formed in the center in the longitudinal direction y over the projecting piece 17, the side plate reinforcing plate 15, the other side plate 5, and the other half 8 of the side plate side bottom plate. Have been.

On one side of the one end plate 2 in the width direction x,
A bottom plate 20 is provided on the end plate side, and a half portion 29 of the cover plate is provided on the other side. The wife plate side bottom plate 20 is
It is provided on one end plate 2 via a fold line 32. In the bottom plate 20 at the end plate, hook-shaped notches 22 and 23 are formed at both ends in the length direction y. One half 29 of the cover plate is provided on one of the end plates 2 via a fold line 34.

On one side of the other end plate 4 in the width direction x,
A bottom plate-side bottom plate 21 is provided, and the other half 30 of the cover plate is provided on another side. The bottom plate 21 is
It is provided on the other end plate 4 via a fold line 32. Key-shaped cutouts 24 and 25 are formed at both ends in the length direction y of the end plate-side bottom plate 21. The other half 30 of the cover plate is provided on the other end plate 4 via a fold line 34.

In a state in which the bottom plates 20 and 21 are superimposed on the side plates, the side plates bent inside one of the side plates 3 by notches 22 and 24 formed in the bottom plates 20 and 21. A latching groove 26 for fitting the protruding piece 16 provided on the reinforcing plate 14 is formed, and notches 23 and 25 formed on the bottom plates 20 and 21 on the side of the end plate.
Side plate reinforcing plate 15 bent inside the other side plate 5
A latch groove 27 is formed to fit the protruding piece 17 provided at the bottom. The length of the retaining grooves 26, 27 is slightly longer than the width of the protruding pieces 16, 17, and the width of the retaining grooves 26, 27 is substantially equal to the width of the mounting portions 12, 13.

The first half 29 and the other half 30 of the cover plate are
In this embodiment, as can be seen from FIG. 2, it is formed so as to be wider than half the width of the opening of the box so that when the cover is closed, one half 29 of the cover plate and the other half 30 partially overlap. Has become.

The inclination of the fold line 33 at the boundary between the one half 7 of the side plate and the connecting plate 9 and the boundary of the other half 8 and the connecting plate 10 on the base paper, the shape of the bottom plate 20 and 21 and the like are as follows. It is advisable to experimentally select one suitable for folding and assembling the box described in (1).

In order to assemble the template 1 into a box, one end plate 2, one side plate 3, the other end plate 4 and the other side plate 5 are bent at right angles at the fold lines 31, respectively. In the example, the connecting piece 6 provided at the end of one end plate 2 is bent at the fold line 31 and connected to the inside of the other side plate 5 by bonding or spot-binding. A portion where the half 7 of the side plate-side bottom plate and the end plate-side bottom plate 20 and the other half 8 of the side plate-side bottom plate and the end plate-side bottom plate 21 are bonded or stapled,
6 and 7 are hatched.

Then, at the location of the folding line 32, the bottom plate 2
The first half 7 of the side plate-side bottom plate, the other half 8 of the bottom plate-side bottom plate 21 and the other half 8 of the side plate-side bottom plate are bent, and the first half 7 and the other half 8 of the side plate-side bottom plate are arranged on the bottom surface of the box. Then, the connecting plate 9 provided on one half 7 of the side plate-side bottom plate is connected to one of the bottom plate-side bottom plates 20 and 21 by bonding or stapling, and connected.
The connecting plate 10 provided on the other half 8 of the side plate-side bottom plate is connected to the other one of the bottom plate-side bottom plates 20 and 21 by bonding or stapling, and as can be seen from FIGS. And the other half part 8 are arranged on the side plate-side bottom plate, which is superimposed on the bottom plate-side bottom plates 21 and 20 in this order to reinforce the bottom plate, and at the same time, to form notches 22 formed in the bottom plate-side bottom plates 20 and 21. 2
4 is provided with a retaining groove 26 on one side plate 3 side, and notches 23 and 25 are provided with retaining grooves 27 on the other side plate 4 side.
To form As can be seen from FIGS. 3, 4 and 5, the mounting portion 1 for the lid plate provided on each of the side plates 3 and 5.
2 and 13 at the fold line 34 respectively.
Bend at right angles to the inside. Further, the side plate reinforcing plates 14 and 15 connected to the cover plate mounting portions 12 and 13 are respectively provided inside the side plates 3 and 5 at the fold line 35, and substantially with the side plates 3 and 5. Fold it in parallel. Next, the protruding pieces 16 and 17 provided on the reinforcing plates 14 and 15 for the side plates, respectively.
Notches 22, 24; 2 of the bottom plates 20 and 21
The engaging grooves 26 and 27 formed by the engaging members 3 and 25 are fitted and latched.

Since the protruding pieces 16 and 17 fit exactly into the retaining grooves 26 and 27, even if the inside of the box is empty, the side plate reinforcing plates 14 and 15 are stable without returning by elasticity, and The widths of 12, 13 are kept substantially parallel to the side plates 3, 5. The tips of the protruding pieces 16 and 17 are connected to one half 7,
The edge of the notch 18 is in the other half 8,
Since each of them is pressed at 21, the bottom is not lifted even when an external force is applied from the bottom of the box, and a strong assembly state is obtained. With the above, the box can be used,
It can be easily assembled.

In this state, articles such as clothes, miscellaneous goods, food, cosmetics, etc. are packed inside the box, and one half 29 and the other half 30 of the cover plate are bent at the fold lines 34, respectively. , 5, the lid plate is placed on one of the first half 29 and the other half 30 in the order of the other half 3,
0 and the half part 29 in this order, and in this embodiment, the half part 29 and the other half part 30 of the cover plate are stopped by a band, a string or an adhesive tape or the like, as shown in FIGS. 2 and 3. Put together.

In this use state, the bottom plate of the box body is connected by the connecting plates 9 and 10 and reinforced by the bottom plate side plates 20 and 21 laid on the side plate side bottom plates so as to be folded. Side plate 3, which is folded in
5 is bent inside the side plates 3 and 5 and the projection 1
Since the side plates 6 and 17 are reinforced by the side plate reinforcing plates 14 and 15 which are hooked on the hooking grooves 26 and 27, it can be used in a state of being strongly retained.

When the box is folded, the following is performed. That is, after opening the half part 29 and the other half part 30 of the cover plate from the state shown in FIG. 2 and taking out the articles housed inside the box, a finger is hung on the semicircular notch 19 and The reinforcing plates 14 and 15 are pulled up, and the protrusions 16 and 17 are removed from the retaining grooves 26 and 27. The cover plates 29, 30 and the side plate reinforcing plates 14, 15 may be put into the next folding step with being pulled up as they are, or, further, as shown in FIGS. 4 and 7, the side plate reinforcing plates. The mounting portions 12 and 13 for the cover plates 14 and 15 are bent outside the side plates 3 and 5.

Next, as shown in FIG. 7, when the large-numbered bottom plate 20 is raised, the bottom plate 20 and one half 7 of the side plate bottom plate are also moved. Since the half portions 8 are connected to each other, while the end plates 2, 4 and the side plates 3, 5 are distorted in a rhombus shape, the other end portion 7 of the end plate-side bottom plate 20 and the side plate-side bottom plate, the end plate 21 and the side plate-side bottom plate, etc. The halves 8 are lifted together. Raise the half part 7 of the bottom plate 20 and the bottom plate, and the other half 8 of the bottom plate 21 and the bottom plate 4 until they are along the second plate 3, the third plate 4, the fourth plate 5, and the fifth plate 5 (at this time, the rhombus is almost crushed). ), Fold line 36
And fold it flat as shown in FIG. At this time,
The cover plates 39, 40 and the side plate reinforcing plates 14, 15 may not be folded and may be kept up, and in this case, the fold line 36 of the side plate reinforcing plates 14, 15 is bent to the opposite side. Further, the area in which the box is folded is about twice that of FIG.

As described above, in this embodiment, the box body can be easily folded from the used state to the flat state, and can be stored or forwarded after being folded to the size of the end plates 2 and 4 and extremely thin. Becomes possible.

When the box is formed from the folded state to the used state again, a procedure reverse to the above-mentioned case of folding is performed.

Then, the articles are put into the box-shaped box body, and one half 29 and the other half 30 of the lid plate are closed.

10 to 12 show a second embodiment of the present invention. FIG. 10 is an exploded view of a box body showing a template, and FIG. 11 is a perspective view showing a use state. FIG. 12 is a perspective view showing a state in which the lid plate and the side plate reinforcing plate are opened.

In the second embodiment shown in these figures, a half portion 39 of the cover plate is provided on the other side of the end plate 2 via a fold line 34, and the other side of the end plate 4 is provided via a fold line 34 on the other side. The other half 40 of the cover plate is provided. One half 39 of the lid plate
The other half 40 is formed in substantially half the width of the opening of the box, and is provided in a double door type. Also, insertion pieces 41 and 42 are connected to one half 39 and the other half 40 of the cover plate via a fold line 43.

On the other hand, the insertion hole 44 extends between the mounting portion 12 for the lid plate and the reinforcing plate 14 for the side plate, which are connected to the side plate 3.
Are formed. Similarly, insertion holes 44 are formed in the mounting portion 13 for the lid plate and the reinforcing plate 15 for the side plate, which are connected to the side plate 4. Each insertion hole 44 is provided with an insertion piece 4 provided in one half 39 and the other end 40 of the cover plate.
1, 42 are formed in a size that can be inserted together.

Therefore, in the second embodiment, after assembling into a box body in the same procedure as in the first embodiment and storing the object therein, the first half 39 of the cover plate and the other half 40 are connected. Each is bent at the fold line 34, and the insertion pieces 41,
42 are bent at the fold lines 43 to cover the opening of the box with the first half 39 and the other half 40 of the cover plate, and the insertion pieces 41 and 42 are overlapped. It is inserted and stopped in the insertion hole 44 formed in the set of the side plate reinforcing plate 14 and the set of the mounting portion 13 and the side plate reinforcing plate 15.

In the second embodiment, the other structure is the same as that of the first embodiment, and the operation and effects are the same as those of the first embodiment.

[0042]

According to the first aspect of the present invention described above, the double-sided plate, both side plates, and the side plate side formed by arranging one half and the other half bent from the bottom of each side plate are arranged. A bottom plate, a cover plate, two bottom plate side bottom plates provided on each bottom plate and superposed on the top surface of the bottom plate for reinforcement, and a side plate reinforcement plate provided on each side plate and bent inside the side plates for reinforcement. In the state where notches are provided at both ends in the longitudinal direction of each endplate-side bottom plate and assembled into a box, the cutout portions are formed on the respective side plate sides of both endplate-side bottom plates superimposed on the side plate-side bottom plates. Hook groove, a protruding piece that is provided at the outer end in the width direction of each side plate reinforcing plate and hooks into the hanger groove in a state where each side plate reinforcing plate is bent inside the side plate,
Since it is constituted by one half of the side plate-side bottom plate and a connecting plate provided on one side of the other half and connected to a part of the end plate-side bottom plate, the shape and structure are simple, and the production of the template and the box There is an effect that the body can be easily assembled.

Also, in the present invention, the endplates are provided on both endplates to be laid on the sideplate side bottom plates for reinforcement, and each sideplate is provided with a side plate reinforcing plate which is bent inside the sideplates for reinforcement. Between the bottom plates, on each side plate side, an elongated substantially U-shaped locking groove is formed, and each side plate reinforcing plate is provided with a protruding piece that fits into the locking groove in a state assembled in a box body. In addition, there is also an effect that these reinforcing members can firmly reinforce and retain the shape in a state where the box body is assembled.

Further, in the present invention, the lid plate is opened, and the reinforcing plate for each side plate is bent to the outside of the side plate to form a set of one half of the side plate side bottom plate, one end plate side bottom plate, and the other half of the side plate side bottom plate. And the other set of the bottom plate on the upper side of the box body, the half of the bottom plate on the side plate, the set of the connecting plate and the pair of the bottom plate on the one side, and the other half of the bottom plate on the side plate are provided. A part and a set of a connecting plate and the other end plate side bottom plate provided therein are folded into the inside of the box body, and thereafter, a set of one side plate, the reinforcing plate for the side plate and a half part of the side plate side bottom plate, and the other By simply folding the side plate, the reinforcing plate for the side plate, and the other half of the side plate-side bottom plate into the inside of the box at the location of the folding line provided at the center in the longitudinal direction, easily and If necessary, make it extremely small or approximately double the size of A very thin, outer with effects that may fold neatly, by following the aforementioned procedure in reverse order, there is an effect that may be Hogata very easy to use.

According to the second aspect of the present invention, one end plate and one side plate, and the other end plate and the other side plate are connected to each other through the folding line in the length direction of the cardboard base paper. At the same time, a connecting piece is attached to one end of the end plate or the other side plate, and a end plate side bottom plate is provided on one side of each end plate via a folding line in a width direction orthogonal to the length direction of the base paper. In each end plate in the longitudinal direction, each of the end plates in the longitudinal direction is formed with a substantially U-shaped locking groove that is elongated in a plan view on each side plate in a state in which both end plates are overlapped on the side plate. The other side of one end plate is provided with a half of the cover plate via a fold line, and the other side of the other end plate is provided with another half of the cover plate via a fold line. Provided, one side of one side plate, one half of the side plate side bottom plate via a fold line, and one side of the other side plate Is provided with the other half of the side plate-side bottom plate via a fold line, the other side of each side plate is provided with the side plate reinforcement plate via a fold line, and each side plate reinforcement plate has an outer end in the width direction. In the state assembled to the box body, provided with a protruding piece that fits into a retaining groove formed between the two end plates side bottom plate, a set of one side plate reinforcing plate and one half of the side plate and the side plate side bottom plate, The other side plate reinforcing plate, the side plate, and the other half portion of the side plate side bottom plate are each provided with a fold line at the center in the longitudinal direction, and a half portion of the side plate side bottom plate and one side portion of the other half portion are provided. Is provided with a connecting plate via a fold line, a connecting piece attached to the one end plate or the other side plate is connected to the other side plate or one end plate, and further, one half and the other half of the side plate side bottom plate The connecting plate provided on the part is connected to a part of the bottom plate on the end plate side, and one half and the other half of the side plate side bottom plate are connected to the bottom of the box. The bottom plate is arranged side by side, and the base plate side bottom plate provided for each wife plate is overlapped and reinforced on this bottom plate, and the side plate reinforcing plate is bent and reinforced inside each side plate, and is stacked on the side plate side bottom plate. A substantially rectangular single piece of corrugated cardboard is configured so that a projection provided on the side plate reinforcing plate is latched and retained in a retaining groove formed between the paired bottom plates on both sides. Can be effectively used to form a box, and there is an effect that a template having a reasonable shape can be easily punched and formed.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is an exploded view of a box showing a template.

FIG. 2 is a diagram showing a use state in the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view of the first embodiment with a cover plate and a side plate reinforcing plate opened.

FIG. 5 is a perspective view of the first embodiment, in which the upper part of the box is cut and shown in an assembled state.

FIG. 6 is a perspective view of the first embodiment viewed from the bottom of the box.

FIG. 7 is a perspective view showing a process when the box is folded in the first embodiment.

FIG. 8 is a perspective view showing a process of folding the box following FIG. 7;

FIG. 9 is a perspective view showing a state in which the box is folded in the first embodiment.

FIG. 10 shows a second embodiment of the present invention, and is an exploded view of a box body showing a template.

FIG. 11 is a diagram showing a use state in the second embodiment.

FIG. 12 is a perspective view of the second embodiment with a cover plate and a side plate reinforcing plate opened.

FIG. 13 is a perspective view showing an example of a conventional cardboard box, viewed from the bottom side.

FIG. 14 is a perspective view showing a state where the cardboard box shown in FIG. 13 is folded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Template board x Length direction of base paper y Width direction of base paper 2 One end plate 3 One side plate 4 The other end plate 5 The other side plate 6 Connecting piece 7 One half of side plate side bottom plate 8 The other half of side plate side bottom plate 9, REFERENCE SIGNS LIST 10 connecting plate 12, 13 cover plate mounting portion 14, 15 side plate reinforcing plate 16, 17 protruding piece fitted in locking groove 20, end plate side bottom plate 22 to 25 cutout formed in end plate side bottom plate 26, 27 Latch groove formed by cutout 29 One half of lid plate 30 Other half of lid plate 31-36 Folding line 39 One half of lid plate 40 Other half of lid plate 41, 42 Insertion piece 43 Fold Line 44 Insert hole

Claims (2)

(57) [Claims] 1. A corrugated cardboard box body constituted by connecting at least both end plates, both side plates, a bottom plate, and a lid plate, each end plate is provided with a end plate side bottom plate which is superimposed on the upper surface of the side plate side bottom plate, In the state where the bottom plate is overlapped between both bottom plates, a substantially U-shaped locking groove is formed on each side plate that is long and narrow when viewed from the top, and each side plate is bent inside the relevant side plate for reinforcement. Provide a side plate reinforcing plate, each side plate reinforcing plate at the lower end in a state of being bent inside the side plate, provided with a protruding piece that fits into a latching groove formed between the end plate side bottom plate, The side plate side bottom plate is configured by arranging a half portion and another half portion bent from the bottom side of each side plate, and a connection plate is provided on one side portion of the side plate side bottom plate and one side portion of the other half portion, and a side plate side bottom plate Is connected to a part of the bottom plate on the side of one end plate through the connecting plate, The other half of the bottom plate was connected to a part of the other bottom plate side plate via a connection plate, and was formed on each side plate side of the both wife plate side bottom plates superimposed on the side plate side bottom plate in a state assembled in a box body. In the retaining groove,
By hooking a protruding piece provided at an end of the side plate reinforcing plate bent inside the side plate, a strong box body is formed, the lid plate is opened, and each side plate reinforcing plate is After pulling up from the inside of the side plate or bending it further outward, a set of one half of the side plate side bottom plate and one end plate side bottom plate, the other half of the side plate side bottom plate and the other end plate side bottom plate Each of the sets was pulled up upward inside the box body while being folded at a fold line at a boundary between one half or the other half of the side plate and the bottom plate and the connecting plate. A set of a connecting plate and one end plate-side bottom plate, the other half of the side plate-side bottom plate, and a set of the connecting plate and the other end plate-side bottom plate provided therein are folded into the box body. A set of a side plate reinforcing plate and a half of a side plate side bottom plate, and the other side plate and the side plate reinforcement And a pair of the other half of the side plate and the bottom plate are folded in the inside of the box body at a fold line provided at a central portion in the longitudinal direction, and are configured to be foldable. Returnable box. 2. One end plate, one side plate, the other end plate, and the other side plate are connected to each other via a folding line in the length direction of the cardboard base paper, and the end of one end plate or the other side plate is provided. In the width direction orthogonal to the length direction of the base paper, a connecting plate is provided on one side, and a base plate-side bottom plate is provided on one side of each base plate via a folding line, and both ends of the base plate-side bottom plate in the length direction are provided. In each of the side plates, a notch is formed on each of the side plates so as to form an elongated substantially U-shaped latch groove when viewed from the top in a state where the two bottom plates are overlapped on the side plate. One side of the lid plate is provided with a fold line on one side, and the other half of the other end plate is provided with the other half of the lid plate via a fold line.One side plate is provided with a fold line One half of the bottom plate on the side plate side, and the other half of the bottom plate on the side plate side on one side of the other side plate via a fold line. The reinforcing plate for the side plate is provided on the other side of each side plate via a folding line, and the reinforcing plate for the side plate is provided at the outer end in the width direction at the outer end in the width direction. Protrusions that fit into the latch grooves formed between them are provided,
And, between each side plate reinforcing plate and each side plate, a flat lid mounting portion is provided, a set of one side plate reinforcing plate and one half of the side plate and the side plate side bottom plate, and the other side plate. The set of the side plate reinforcing plate, the side plate and the other half of the side plate side bottom plate is provided with a fold line at the center in the longitudinal direction, and the half of the side plate side bottom plate and the other half of the other half are respectively formed. A connecting plate is provided via a folding line, and the connecting piece attached to the one side plate or the other side plate is connected to the other side plate or one side plate, and further provided on one half and the other half of the side plate side bottom plate. The connected connecting plate is connected to a part of the bottom plate-side bottom plate, and one half and the other half of the side plate-side bottom plate are arranged on the bottom of the box to form a bottom plate. The bottom plate is overlapped and reinforced, and the reinforcing plate for the side plate is bent and reinforced inside each side plate, and the weight is placed on the bottom plate on the side plate side. The projection provided on the side plate reinforcing plate is hooked into the locking groove formed between the paired bottom plates, and the mold is retained, so that the edge of the lid is placed on the mounting portion for the lid plate. A corrugated cardboard box constructed as described above.