JP6919532B2 - Flower packaging box - Google Patents

Description

The present invention relates to a flower packaging box used for transporting cut flowers.

Conventionally, so-called double-sided joint boxes have become widespread as packaging boxes for storing cut flowers. Since the two-sided joint box is constructed by combining two sheet materials, it is easy to handle a long box shape and the equipment cost can be suppressed, but on the other hand, the sheet materials are joined to each other with an adhesive or a fastener at the time of assembly. Since work is required, there is a problem that the assembly work becomes complicated.

To solve this problem, various flower packaging boxes that do not require auxiliary materials such as adhesives and fasteners for assembly have been developed. For example, in Patent Document 1, in a flower packaging box formed by bending a single sheet material, an engaging projecting piece formed on a short side plate is fitted into an engaging recess of a folded piece continuously provided on a long side plate. Therefore, the technique of fixing the side surface of the box is described. According to the technique of Patent Document 1, it is said that the flower packaging box can be easily assembled without using auxiliary materials such as tape.

Japanese Unexamined Patent Publication No. 2005-119671

By the way, in the market, for example, when moving a packaging box having an open lid (top plate) so that the housed cut flowers can be seen, the short side plate may be pulled. If the short side plate of the packaging box described in Patent Document 1 is pulled, the engaging projecting piece may come off from the engaging recess and the packaging box may be disassembled. For this reason, it is an issue for flower packaging boxes to suppress unintentional disassembly while ensuring ease of assembly.

This case was devised in view of the above-mentioned problems, and one of the purposes is to provide a flower packaging box that is easy to assemble and can suppress unintended disassembly. .. Not limited to this purpose, it is also possible to exert actions and effects derived from each configuration shown in the "mode for carrying out the invention" described later, which cannot be obtained by the conventional technique. It can be positioned as another purpose.

(1) The flower packaging box disclosed here is a flower packaging box in which one sheet material is bent, and is connected to a rectangular bottom plate and each long side of the bottom plate via a folding line. A pair of rectangular long side plates, a pair of rectangular short side plates connected to each short side of the bottom plate via a folding line, and a long side opposite to the long side connected to the bottom plate in one of the long side plates. A top plate connected via a fold line, a fold piece connected to each short side of each of the long side plates via a fold line, and a side opposite to the end side connected to the bottom plate in each of the short side plates. An edge piece connected to the edge of the edge via a folding line, a flap-shaped tongue formed on each of the edge pieces, and a hole projected from each of the folded pieces and into which the tongue is inserted. It has a portion, and includes a locking piece that locks the tongue portion inserted into the hole portion.

(2) The locking piece preferably has a flap portion in which the peripheral edge of the hole portion is cut except for a part.
(3) The tongue portion preferably has a shape that protrudes in a predetermined direction from the hole portion in a state where the edge piece is overlapped with the locking piece.
(4) The tongue portion preferably has a ruled line extending in a direction intersecting the predetermined direction.

(5) It is preferable that the sheet material is a corrugated cardboard sheet and the flow direction in the tongue portion intersects the predetermined direction.
(6) It is preferable that each of the folded pieces has a temporary assembly portion that engages with each other inside the short side plate.

Since the tongue of the edge piece connected to the short side plate is locked while being inserted into the hole of the locking piece protruding from the folding piece, auxiliary materials such as adhesives and fasteners are used. It is possible to hold the packaging box in a box shape without having to do so, and it is possible to prevent the tongue from coming off when the short side plate is pulled. Therefore, according to the disclosed flower packaging box, assembly can be facilitated and unintentional disassembly can be suppressed.

It is a top view (development view of the flower packaging box) of the sheet material assembled in the flower packaging box which concerns on one Embodiment. It is a perspective view of the flower packaging box of FIG. 1, and shows the state in which the top plate is open. It is a front view of the short side plate and the edge piece of the flower packaging box of FIG. 1, and shows the state in which the short side plate and the edge piece stand upright in the vertical direction. It is a front view of the folding piece and the locking piece of the flower packaging box of FIG. 1, and shows the state in which the folding piece and the locking piece stand upright in the vertical direction. It is a figure for demonstrating the assembly procedure of the flower packaging box of FIG. 1, and shows the state before the short side plate is put on the folding piece. It is a figure for demonstrating the assembly procedure of the flower packaging box of FIG. 1, and shows the state in which the tongue part is inserted into the hole part.

Hereinafter, a flower packaging box as an embodiment will be described with reference to the drawings. It should be noted that the embodiments shown below are merely examples, and there is no intention of excluding the application of various modifications and techniques not specified in the following embodiments. Each configuration of the present embodiment can be variously modified and implemented without departing from the gist thereof. In addition, it can be selected as needed, or can be combined as appropriate.

[1. composition]
[1-1. Basic configuration]
The wrapping box for flowers is a box for storing elongated items such as cut flowers. Hereinafter, the flower packaging box is simply referred to as a packaging box. The articles contained in this packaging box are not limited to cut flowers, and may be, for example, green onions, lotus roots, burdock roots, and the like.

The packaging box 10 according to the present embodiment is formed by bending the sheet material 10A shown in FIG. The sheet material 10A includes a bottom plate 1, a pair of long side plates 2, a pair of short side plates 3, a top plate 4, a long edge piece 5, an insertion piece 6, four folding pieces 7, and two short edge pieces (edge pieces). 8. Four locking pieces 9 are provided.

The bottom plate 1 is formed in a rectangular shape corresponding to the shape of the article housed in the packaging box 10. Hereinafter, in the sheet material 10A, the direction in which the long side of the bottom plate 1 extends is referred to as the first direction D1, and the direction in which the short side of the bottom plate 1 extends is referred to as the second direction D2. Both the first direction D1 and the second direction D2 are directions along the extending surface of the sheet material 10A and are orthogonal to each other.

The long side plate 2 is continuously provided on each long side of the bottom plate 1 via a folding line. The long side plate 2 is formed in a rectangular shape having a long side having the same direction and length as the long side of the bottom plate 1 and a short side extending in the second direction D2.
The short side plate 3 is continuously provided on each short side of the bottom plate 1 via a folding line. The short side plate 3 of the present embodiment is formed in a rectangular shape having a long side having the same direction and the same length as the short side of the bottom plate 1 and a short side extending in the first direction D1.

As described above, in the sheet material 10A, the long side plate 2 is continuously provided on both sides of the second direction D2 and the short side plate 3 is continuously provided on both sides of the first direction D1 with respect to the bottom plate 1. Hereinafter, in the sheet material 10A, the bottom plate 1 is assumed to be located in the center, the side facing the bottom plate 1 is referred to as the inside, and the side separated from the bottom plate 1 is referred to as the outside.

The top plate 4 is continuously provided on the long side (left side in FIG. 1) of one of the pair of long side plates 2 (left side in FIG. 1) via a folding line. In other words, the top plate 4 is continuously provided on one long side plate 2 on the long side connected to the bottom plate 1 and the long side opposite to the long side. The top plate 4 is formed in the same rectangle as the bottom plate 1.

The long edge piece 5 is connected to the long side of the other side (right side in FIG. 1) (right side in FIG. 1) of the pair of long side plates 2 via a folding line. The long edge piece 5 has a function of preventing the top plate 4 from falling in the packaging box 10. A slit-shaped insertion hole 11 is formed on the folding line between the long side piece 5 and the long side plate 2 continuous with the long side piece 5.
The insertion piece 6 is a portion to be inserted into the insertion hole 11 when the packaging box 10 is sealed, and is projected from the top plate 4 toward the outside of the second direction D2.

The fold pieces 7 are connected to each short side of each long side plate 2 via a fold line. That is, the folding pieces 7 are connected to both sides of the second direction D2 of each long side plate 2 and are located on both sides of the first direction D1 of each short side plate 3. The folding piece 7 is arranged inside the short side plate 3 in a state where the sheet material 10A is assembled in the packaging box 10. The folding piece 7 of the present embodiment has a temporary assembly portion 7a that engages with each other in a state of being arranged inside the short side plate 3 in this way. The temporary assembly portion 7a has a function of holding the folding piece 7 and the long side plate 2 in an upright posture by being assembled by mistake in the process of assembling the sheet material 10A into the packaging box 10.

The short edge piece 8 is continuously provided outside the first direction D1 of each short side plate 3. In other words, the short edge piece 8 is connected to each of the short side plates 3 via a folding line on the long side (end side) connected to the bottom plate 1 and the long side (end side) on the opposite side. Like the long edge piece 5, the short edge piece 8 has a function of preventing the top plate 4 from falling in the packaging box 10.

The locking pieces 9 project from each folding piece 7 toward the outside in the first direction D1. The locking piece 9 is arranged so as to overlap the inside of the short edge piece 8 in the packaging box 10. The short edge piece 8 and the locking piece 9 have a function of holding the shape of the packaging box 10. In other words, the packaging box 10 is held in a box shape by the short edge piece 8 and the locking piece 9 without using an auxiliary material such as an adhesive or a stopper. The detailed configuration of the short edge piece 8 and the locking piece 9 will be described later.

The sheet material 10A of the present embodiment is a corrugated cardboard sheet in which a corrugated core is sandwiched between a front liner and a back liner. The sheet material 10A is used with its flow direction being the first direction D1 and its width direction being the second direction D2. Since the bending rigidity of the corrugated cardboard sheet is higher in the width direction than in the flow direction, the sheet material 10A has a property of being less likely to bend in the second direction D2 than in the first direction D1.

The folding line provided on the boundary line of each part 1 to 9 of the sheet material 10A is a line that is bent when the sheet material 10A is assembled in the packaging box 10. Ruled lines (grooves) are processed in these polygonal lines.

As shown in FIG. 2, the packaging box 10 is used in a posture in which the bottom plate 1 is located below the top plate 4. In the packaging box 10, a pair of long side plates 2 and a pair of short side plates 3 are erected perpendicularly to the bottom plate 1 and function as side walls surrounding a space in which articles are housed, and a top plate 4 provides this space. Functions as a sealing lid. The packaging box 10 is sealed by arranging the top plate 4 facing above the bottom plate 1 and inserting the insertion piece 6 into the insertion hole 11. In the state where the packaging box 10 is sealed, the long edge piece 5 closes the gap between the top plate 4 and the long side plate 2, and the short edge piece 8 closes the gap between the top plate 4 and the short wall plate 3. It will be blocked.

[1-2. Main part composition]
Each configuration of the short edge piece 8 and the locking piece 9 in the packaging box 10 will be described in detail with reference to FIGS. 3 and 4. In the following description, the vertical direction is determined assuming that the packaging box 10 is placed on a horizontal surface. FIG. 3 shows a state in which the short side plate 3 and the short edge piece 8 connected to the short side plate 3 are both in an upright posture. Further, FIG. 4 shows a state in which the folding piece 7 and the locking piece 9 connected to the folding piece 7 are both in an upright posture in the vertical direction. Hereinafter, the direction orthogonal to the vertical direction on the extending surface of the short edge piece 8 and the locking piece 9 is also referred to as a left-right direction.

As shown in FIG. 3, a pair of flap-shaped tongue portions 12 are formed on the short edge piece 8. The pair of tongue portions 12 are arranged so as to be separated from each other in the left-right direction. The tongue portion 12 of the present embodiment is a substantially rectangular shape that is long in the left-right direction (the long side direction of the short side plate 3). That is, the tongue portion 12 has a shape surrounded by a pair of upper and lower long sides extending in the left-right direction and a pair of left-right end sides extending in the up-down direction. The tongue portion 12 is formed in a flap shape by cutting a portion other than the central portion 12a of the lower long side among these long sides and short sides.

Hereinafter, the central portion 12a of the long side on the lower side of the tongue portion 12 is referred to as a tongue continuous portion 12a. The tongue continuous portion 12a is a portion that serves as a base when the tongue portion 12 bends with respect to another portion of the short edge piece 8. The tongue continuous portion 12a is processed with a ruled line 17 so that the tongue portion 12 can be easily bent toward the inside of the packaging box 10.

In the tongue portion 12, the flow direction of the corrugated cardboard sheet forming the packaging box 10 is the vertical direction. That is, the tongue portion 12 has a property of being less likely to bend in the left-right direction than in the up-down direction. The tongue portion 12 of the present embodiment has a ruled line 13 extending in a direction intersecting the left-right direction. Here, a case where a pair of ruled lines 13 are provided on each tongue portion 12 so as to be separated from each other in the left-right direction will be illustrated. The pair of ruled lines 13 are formed in a straight line that approaches each other upward from the left and right end portions of the tongue continuous portion 12a.

As shown in FIG. 4, each locking piece 9 has a flap portion 14 formed in the same flap shape as the tongue portion 12, a frame portion 15 provided around the flap portion 14, and a flap portion 14 as a frame. It has a hole portion 16 formed by being pushed into the portion 15. The hole portion 16 is formed at a position overlapping the tongue portion 12 in a state where the short side plate 3 and the short edge piece 8 are arranged so as to overlap the folding piece 7 and the locking piece 9, respectively. In the process of assembling the packaging box 10, the tongue portion 12 is inserted into the hole portion 16.

The locking piece 9 locks the tongue portion 12 inserted into the hole portion 16 with the frame portion 15. That is, the frame portion 15 has a function of preventing the tongue portion 12 inserted into the hole portion 16 from coming out of the hole portion 16. Further, the flap portion 14 has a function of sandwiching the tongue portion 12 inserted into the hole portion 16 with the frame portion 15 and fixing the tongue portion 12.

The flap portion 14 is formed by cutting the peripheral edge of the hole portion 16 except for a part. The flap portion 14 of the present embodiment is composed of a substantially square main portion 14a and a semicircular auxiliary portion 14b connected to the upper side of the main portion 14a, and is below the main portion 14a among its contour lines. It is formed in a flap shape by cutting a portion other than the portion 14c corresponding to one side of the side.

Hereinafter, the portion 14c corresponding to the lower side of the main portion 14a is referred to as a flap continuous portion 14c. The flap continuous portion 14c is a portion that serves as a base portion when the flap portion 14 bends with respect to the frame portion 15. A ruled line 18 is processed on the flap continuous portion 14c so that the flap portion 14 can be easily bent toward the inside of the packaging box 10.

As shown in FIG. 3, the left-right dimension W1 of the tongue portion 12 is made larger than the left-right dimension (maximum dimension) W2 of the hole portion 16. That is, as shown by the alternate long and short dash line in FIG. 4, the tongue portion 12 is arranged from the hole portion 16 in a state where the short side plate 3 and the short edge piece 8 are arranged so as to overlap the folding piece 7 and the locking piece 9, respectively. Also has a shape that protrudes in the left-right direction (predetermined direction). Therefore, the frame portion 15 comes into contact with the left and right ends of the tongue portion 12 when the tongue portion 12 is inserted into the hole portion 16.

In the packaging box 10, the ruled line 17 of the tongue connecting portion 12a is provided above the ruled line 18 of the flap connecting portion 14c. Similarly, in the packaging box 10, the ruled line between the short edge piece 8 and the short side plate 3 is provided above the ruled line between the locking piece 9 and the folding piece 7. The tongue portion 12 is bent by the ruled line 17 of the tongue connecting portion 12a so as to overlap the flap portion 14 bent by the ruled line 18 of the flap connecting portion 14c in the process of assembling the packaging box 10, and the hole portion is formed. It is inserted in 16. Further, when the top plate 4 is closed, the end edge piece 8 is bent from the short side plate 3 so as to overlap the locking piece 9, and is inside the packaging box 10 more than the short side plate 3 and the folding piece 7. Be placed.

[1-3. Assembly procedure]
The procedure for assembling the packaging box 10 will be described with reference to FIGS. 5 and 6. As shown in FIG. 5, first, each long side plate 2 is erected perpendicularly to the bottom plate 1. Next, each folded piece 7 is bent at a right angle to the long side plate 2 to engage the temporary assembled portions 7a with each other. As a result, the long side plate 2 is maintained in an upright posture, and each folding piece 7 is maintained in a posture perpendicular to both the bottom plate 1 and the long side plate 2.

Subsequently, as shown in FIG. 6, each short side plate 3 is erected perpendicularly to the bottom plate 1. In other words, each short side plate 3 is arranged so as to overlap the folding piece 7 from the outside. Then, the tongue portion 12 and the flap portion 14 are pushed inside and downward of the packaging box 10. At this time, the flap portion 14 moves with respect to the frame portion 15 to form the hole portion 16. Further, when the tongue portion 12 is bent along the ruled line 13, the dimension W1 in the left-right direction thereof is reduced, and the tongue portion 12 can pass through the hole portion 16. Then, the tongue portion 12 is inserted into the hole portion 16 formed with the movement of the flap portion 14.

In the state where the tongue portion 12 is inserted into the hole portion 16 and arranged inside the packaging box 10 with respect to the frame portion 15 in this way, the tongue portion 12 is locked by the locking piece 9. That is, the tongue portion 12 is prevented from coming out of the hole portion 16 by hitting the left and right end portions of the tongue portion 12 with the frame portion 15 of the locking piece 9, and is held in a state of being inserted into the hole portion 16. As a result, the short side plate 3 is maintained in a posture perpendicular to the bottom plate 1 and each long side plate 2 in a state of being overlapped with the outside of the folding piece 7. Therefore, the packaging box 10 is held in a box shape in which the bottom plate 1, the pair of long side plates 2, and the pair of short side plates 3 form a container.

When sealing the packaging box 10, the long edge piece 5 and each short edge piece 8 are bent inside the packaging box 10. Then, the long edge piece 5 and the short edge piece 8 are arranged so as to cover the top plate 4 from above, and the insertion piece 6 is inserted into the insertion hole 11. As a result, the top plate 4 is held in a state of being arranged to face each other above the bottom plate 1, and the packaging box 10 is sealed.

[2. Action, effect]
According to the packaging box 10, the following actions and effects can be obtained.
(1) Since the tongue portion 12 formed on the short edge piece 8 is locked while being inserted into the hole portion 16 of the locking piece 9 projecting from the folding piece 7, an adhesive, a stopper, or the like is used. The packaging box 10 can be held in a box shape without using the auxiliary material of the above. Therefore, the packaging box 10 can be easily assembled from one sheet material 10A.

Further, since the tongue portion 12 is locked by the locking piece 9, even if the short edge piece 8 or the short side plate 3 is pulled to the outside of the packaging box 10 with the top plate 4 open, the tongue portion 12 Can be made difficult to come off from the hole 16. Therefore, when the packaging box 10 is moved by pulling the short edge piece 8 or the short side plate 3, it is possible to prevent the packaging box 10 from being disassembled unintentionally.

(2) Since the locking piece 9 has the flap portion 14, the hole portion 16 can be formed by pushing the flap portion 14 when assembling the packaging box 10, and the hole portion 16 is supported when the sheet material 10A is manufactured. It is possible to prevent the generation of punched debris. Therefore, in the production of the sheet material 10A, the work and the apparatus for removing the punched debris can be omitted, which can contribute to the reduction of the production cost.

Further, in the packaging box 10, the tongue portion 12 can be fixed by sandwiching the tongue portion 12 between the flap portion 14 and the frame portion 15. As a result, the tongue portion 12 is more difficult to come off from the hole portion 16, so that unintended disassembly of the packaging box 10 can be further suppressed.

(3) As shown in FIG. 4, in a state where the short edge piece 8 is overlapped with the locking piece 9, the tongue portion 12 has a shape protruding from the hole portion 16 in the left-right direction, and therefore is inserted into the hole portion 16. The tongue portion 12 can be hooked on the frame portion 15 around the hole portion 16. As a result, the tongue portion 12 is easily held in the state of being inserted into the hole portion 16, so that unintended disassembly of the packaging box 10 can be further suppressed.

(4) As shown in FIG. 3, since the tongue portion 12 has a ruled line 13 extending in a direction intersecting the left-right direction, the tongue portion 12 can be easily bent by the ruled line 13. Therefore, even if the tongue portion 12 has a shape that protrudes in the left-right direction from the hole portion 16, it can be easily inserted into the hole portion 16 by bending it along the ruled line 13. In addition, it is possible to prevent unnecessary folding lines from being generated in the tongue portion 12 when the tongue portion 12 is inserted into the hole portion 16. Therefore, it is possible to suppress a decrease in the rigidity of the tongue portion 12 after being inserted into the hole portion 16, and it is possible to easily hold the tongue portion 12 in the state of being inserted into the hole portion 16. Therefore, unintended disassembly of the packaging box 10 can be further suppressed.

(5) When the sheet material 10A is a corrugated sheet and the flow direction in the tongue portion 12 is the vertical direction (the direction intersecting the left-right direction) in the packaging box 10, so that the flow direction in the tongue portion 12 is the left-right direction. Rather, the tongue portion 12 can be made less likely to bend in the left-right direction. Therefore, the tongue portion 12 having a shape protruding in the left-right direction from the hole portion 16 can be made more difficult to come off from the hole portion 16. That is, when the tongue portion 12 is bent in the left-right direction, the dimension W1 in the left-right direction is reduced and the tongue portion 12 is easily pulled out from the hole portion 16. Therefore, the flow direction in the tongue portion 12 is adjusted to make it difficult for the tongue portion 12 to be bent in the left-right direction. By doing so, it is possible to further suppress the pulling out of the tongue portion 12 from the hole portion 16.

(6) Since each folding piece 7 has a temporary assembly portion 7a that engages with each other inside the short side plate 3, the temporary assembly portions 7a are engaged with each other when the sheet material 10A is assembled into the packaging box 10, so that the folding pieces 7 are folded. Both the piece 7 and the pair of long side plates 2 can be held in an upright posture. Further, since the position of the locking piece 9 can be stabilized by this, the packaging box 10 can be more easily assembled. Further, since the packaging box 10 is more difficult to disassemble , when the packaging box 10 is moved by pulling the short edge piece 8 or the short side plate 3, for example, unintended disassembly of the packaging box 10 can be further suppressed.

(7) Since the flap portion 14 has an auxiliary portion 14b arranged on the opposite side of the flap continuous portion 14c with respect to the main portion 14a, the flap portion 14 is pushed against the frame portion 15 by pushing the auxiliary portion 14b. It can be easily moved and the hole 16 can be easily formed.

(8) In the packaging box 10, since the ruled line 17 of the tongue connecting portion 12a is provided above the ruled line 18 of the flap connecting portion 14c, the tongue portion 12 and the flap portion 14 are packaged by these ruled lines 17 and 18, respectively. When bent inward of the box 10, the tongue portion 12 can be appropriately overlapped above the flap portion 14. As a result, the position of the tongue portion 12 can be optimized, and the tongue portion 12 can be more appropriately locked to the locking piece 9.

Further, in the packaging box 10, since the ruled line between the short edge piece 8 and the short side plate 3 is provided above the ruled line between the locking piece 9 and the folding piece 7, the short edge piece is provided with these ruled lines. When the folding piece 8 and the folding piece 7 are each bent inward of the packaging box 10, the short edge piece 8 can be appropriately overlapped on the folding piece 7. As a result, the position of the short edge piece 8 can be optimized, and when the top plate 4 is closed, there is a gap between the top plate 4 and the short edge piece 8 while preventing the top plate 4 from falling. It can be suppressed from occurring.

[3. Modification example]
Hereinafter, a modified example of the present embodiment will be described.
The shapes of the tongue, flaps and holes are not particularly limited. For example, the tongue portion may have a shape that protrudes in the vertical direction from the hole portion in a state where the short edge piece is overlapped with the locking piece. Further, the flap portion may be composed of only the main portion 14a described above, for example.

The locking piece may have a portion corresponding to the flap portion punched out. In other words, the flap portion may be omitted from the locking piece. In this case as well, the packaging box can be held in a box shape by locking the tongue portion inserted into the hole portion with the locking piece. Therefore, the packaging box can be easily assembled without using auxiliary materials, and unintended disassembly of the packaging box can be suppressed.

The fold-in piece may have a configuration in which the above-mentioned temporary assembly portion 7a is omitted. The shape and number of ruled lines provided on the tongue are not particularly limited. For example, one or two linear ruled lines extending in the vertical direction may be provided on the tongue portion, or the ruled lines may be omitted from the tongue portion. Further, the short side plate may be square. In addition, on various ruled lines provided on the sheet material 10A, a broken line-shaped notch may be formed in order to make the sheet material 10A more easily bent along these ruled lines. Further, the sheet material 10A is not limited to the corrugated cardboard sheet, and may be, for example, thick paper.

1 Bottom plate 2 Long side plate 3 Short side plate 4 Top plate 7 Folded piece 7a Temporary assembly part 8 Short edge piece (edge piece)
9 Locking piece 10 Flower packaging box 10A Sheet material 12 Tongue part 13 Ruled line 14 Flap part 16 Hole part

Claims (6)

It is a flower packaging box made by folding a single sheet material.
With a rectangular bottom plate,
A pair of rectangular long side plates connected to each long side of the bottom plate via a folding line, and
A pair of rectangular short side plates connected to each short side of the bottom plate via a fold line,
On one side of the long side plate, a top plate connected to the long side connected to the bottom plate and a long side opposite to the long side via a fold line, and a top plate.
A folding piece that is connected to each short side of each of the long side plates via a folding line and overlaps the inside of the short side plate,
In each of the short side plates, edge pieces connected to the end side connected to the bottom plate and the end side opposite to the bottom plate via a fold line, and
A flap-shaped tongue formed on each of the edges,
It is characterized by having a hole portion that is projected from each of the folded pieces and into which the tongue portion is inserted, and a locking piece that locks the tongue portion inserted into the hole portion. Packaging box for flowers. The flower packaging box according to claim 1, wherein the locking piece has a flap portion in which the peripheral edge of the hole portion is cut except for a part. The tongue portion is characterized in that, in a state where the edge piece is overlapped with the locking piece, the tongue portion protrudes from the hole portion in a predetermined direction along the extending surface of the edge piece. The flower packaging box according to item 1 or 2. The flower packaging box according to claim 3, wherein the tongue portion has a ruled line extending in a direction intersecting the predetermined direction. The sheet material is a corrugated cardboard sheet,
The flower packaging box according to claim 3 or 4, wherein the tongue portion has a property of being less likely to bend in a direction intersecting the predetermined direction than the predetermined direction. The flower packaging box according to any one of claims 1 to 5, wherein each of the folded pieces has a temporary assembly portion that engages with each other inside the short side plate.

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