JP6933175B2 - Packaging box, table and sheet material - Google Patents

Description

The present invention relates to a hexahedral packaging box in a basic state, a table formed by deforming the packaging box, and a sheet material that can be assembled into the packaging box.

Conventionally, it has been considered to add a function other than wrapping an article to a packaging box for wrapping an article. For example, a structure has been proposed in which a top plate is fixed on a packaging box (square box) so that the packaging box functions as a table leg (support base for the top plate) (see Patent Document 1). According to this structure, the packaging box can be used as a part of the table.

Japanese Unexamined Patent Publication No. 2002-293386

However, in the above-mentioned structure, since the packaging box is combined with the top plate to form a table, the packaging box alone cannot function as a table. Therefore, there is room for improvement in the above-mentioned structure in order to improve the utilization of the packaging box.

This case was devised in view of the above-mentioned problems, and one of the purposes is to improve the utilization of the packaging box. 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 packaging box disclosed here is provided with four rectangular panels forming a square cylinder and eight flaps connected to both sides of each of the panels, and has a hexahedron in a basic state for packaging articles. Eggplant. The four panels are two side plates facing each other, a top plate arranged above the side plates in a deformed state deformed from the basic state, and a bottom plate arranged below the top plate in the deformed state. It is composed of and. The eight flaps consist of two first outer flaps connected to the top plate and two second outer flaps connected to the bottom plate and facing each other together with the first outer flap in the basic state. It is composed of four inner flaps which are connected to each of the side plates and are arranged so as to overlap the inside of the first outer flap and the second outer flap in the basic state. The packaging box includes a bottom ruled line provided on the bottom plate and the second outer flap, extending linearly at an intermediate position between the two side plates, and being bent convexly toward the top plate in the deformed state. The top plate and the first outer flap are provided on the flap, extend diagonally linearly from the end on the top plate side at the boundary line with the side plate toward the bottom plate side, and are bent in the deformed state. The top ruled line arranged along the boundary line of the above and the bottom ruled line in the deformed state are held, and the position of the top ruled line with respect to the boundary line between the top plate and the first outer flap is held. It is characterized by being provided with a holding means.

(2) The holding means is formed in a pair of flap-shaped tongue pieces formed on each of the first outer flaps and on each of the inner flaps, and the tongue pieces are inserted in the deformed state. It is preferable to have a hole to be locked.
(3) The tongue piece has a trapezoidal shape in a plan view of the first outer flap, and can swing around the upper base of the trapezoidal shape, and the hole portion is perpendicular to the top ruled line. It is preferable that the shape is a rectangle having two sides that extend to the shape of the trapezoid and the distance between the trapezoidal shapes is shorter than that of the lower base of the trapezoidal shape.

(4) It is preferable that the packaging box is formed of a corrugated cardboard sheet having a core, and each flute of the core in the side plate extends in the vertical direction in the deformed state.
(5) The table disclosed here is characterized in that the packaging box is configured in the deformed state, and the two side plates are held in a posture of approaching each other as they go downward by the holding means. ..
(6) The sheet material disclosed here can be assembled in the packaging box, the panels are connected in the horizontal direction, the first outer flaps are connected to both sides in the vertical direction of the top plate, and the first. (Ii) The outer flaps are connected to both sides of the bottom plate in the vertical direction, the inner flaps are connected to both sides of the side plates in the vertical direction, and the bottom ruled line extends over the bottom plate and the two second outer flaps. It is characterized in that it extends along the vertical direction and the top ruled line extends at an angle with respect to the vertical direction. The horizontal direction and the vertical direction are directions along the extending surface of the sheet material and are orthogonal to each other.

According to the disclosed packaging box, table and sheet material, the packaging box can function as a table. Therefore, the utilization of the packaging box can be enhanced.

It is a perspective view which shows the basic state of the packaging box which concerns on embodiment. It is the figure which looked at the packaging box of FIG. 1 from the 1st outer flap and the 2nd outer flap side. It is the figure which omitted the 1st outer flap and the 2nd outer flap from FIG. It is a figure which shows the state which the packaging box of FIG. 1 was bent by the bottom ruled line and the top ruled line, and is shown by omitting the first outer flap. It is a figure which shows the deformed state of the packaging box of FIG. 1 (side view of the table which concerns on embodiment). It is a development view (plan view of the sheet which concerns on embodiment) of the packaging box of FIG.

Hereinafter, a packaging box, a table, and a sheet material as embodiments 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. Packaging box]
As shown in FIG. 1, the packaging box 1 according to the present embodiment forms a hexahedron in a basic state (that is, a box state) for packaging an article. In this embodiment, a so-called 0201 type (so-called A type) packaging box 1 is illustrated. The packaging box 1 includes four rectangular panels 2 having a square tubular shape, and eight rectangular flaps 3 connected to both sides of each panel 2. Hereinafter, in the packaging box 1, the side facing the space surrounded by the four panels 2 is referred to as "inside", and the opposite side thereof is referred to as "outside".

In the basic state, each panel 2 is arranged along the vertical direction (vertical direction) and forms a side surface of the packaging box 1. On the other hand, in the basic state, the flaps 3 are arranged along the horizontal direction orthogonal to the vertical direction, and form the top surface and the bottom surface of the packaging box 1. The packaging box 1 according to the present embodiment is formed of a corrugated cardboard sheet having a core 4. When the packaging box 1 is in the basic state, the extending direction of the flute 4a of the core 4 is the vertical direction. That is, in each panel 2 in the basic state, the flute 4a extends in the direction of connecting the upper and lower flaps 3.

The four panels 2 are composed of two first panels 2A and 2A facing each other and two second panels 2B and 2C provided perpendicular to each first panel 2A. The eight flaps 3 are composed of four inner flaps 3A connected to the first panel 2A and outer flaps 3B and 3C connected to the second panels 2B and 2C, respectively.

The outer flaps 3B and 3C are arranged with their tips abutting each other in the basic state. Of the outer flaps 3B and 3C, the outer flaps 3B and 3C arranged on the upper side of the panel 2 in the basic state form the top surface of the packaging box 1, and the two outer flaps arranged on the lower side of the panel 2 in the basic state. 3B and 3C form the bottom surface of the packaging box 1. That is, in the basic state, the outer flaps 3B and 3C form two opposite surfaces. The inner flap 3A is arranged so as to overlap the inside of the outer flaps 3B and 3C in the basic state.

The packaging box 1 can be deformed from the basic state to the deformed state shown in FIG. The packaging box 1 constitutes a table 1'when it is in a deformed state. In the deformed state, each first panel 2A is arranged along the vertical direction and functions as a leg of the table 1'. Therefore, in the following description, the first panel 2A is also referred to as a "side plate 2A".

Further, in the deformed state, one second panel 2B is arranged above each side plate 2A, and the other second panel 2C is arranged below one second panel 2B. Therefore, in the following description, one second panel 2B is also referred to as "top plate 2B", and the other second panel 2C is also referred to as "bottom plate 2C". Further, among the outer flaps 3B and 3C, the outer flap 3B connected to the top plate 2B is also referred to as "first outer flap 3B", and the outer flap 3C connected to the bottom plate 2C is also referred to as "second outer flap 3C". ..

The packaging box 1 includes a bottom ruled line 5, a top ruled line 6, and a holding means 7 as elements for forming the table 1'. The bottom ruled line 5 and the top ruled line 6 are lines that are bent when the packaging box 1 is changed from the basic state to the deformed state, and have a function of guiding the bending operation. On the other hand, the holding means 7 has a function of holding each of the bent state of the bottom ruled line 5 and the top ruled line 6 in the deformed state and holding the shape of the table 1'.

As shown in FIG. 1, the bottom ruled line 5 is provided over the bottom plate 2C and the second outer flaps 3C on both sides thereof, and extends linearly at an intermediate position between the two side plates 2A. That is, the bottom ruled line 5 is provided at a position where the distances from the two side plates 2A are equal. Specifically, the bottom ruled line 5 is a groove (streak push) formed on each inner surface (inward facing surface) of the bottom plate 2C and the second outer flap 3C. The bottom ruled line 5 of the present embodiment extends parallel to the flute 4a of the core 4. The bottom ruled line 5 is bent convexly toward the top plate 2B in a deformed state.

The top ruled line 6 is provided diagonally on each inner flap 3A. More specifically, the top ruled line 6 extends diagonally and linearly from the end of the boundary line B1 between the side plate 2A and the inner flap 3A on the top plate 2B side toward the bottom plate 2C side. Specifically, the top ruled line 6 of the present embodiment is a lead ruled line (grooves and notches are alternately arranged) formed on each inner surface (surface facing inward) of the inner flap 3A. The top ruled line 6 is bent in a deformed state and is arranged along the boundary line B2 between the top plate 2B and the first outer flap 3B. Hereinafter, of the inner flaps 3A, the right-angled triangular portion 3d on the top plate 2B side of the top ruled line 6 is also referred to as a folding piece 3d. The folded piece 3d is overlapped with the inside of the top plate 2B by bending the inner flap 3A along the top ruled line 6 in the deformed state.

As shown in FIGS. 1 and 5, the holding means 7 holds the folding angle of the bottom ruled line 5 in the deformed state, and the position of the top ruled line 6 with respect to the boundary line B2 between the top plate 2B and the first outer flap 3B. To hold. The holding means 7 of the present embodiment has a pair of tongue pieces 7B formed in each first outer flap 3B and a hole portion 7A formed in each inner flap 3A.

FIG. 2 is a view of the packaging box 1 in the basic state as viewed from the outside of the outer flaps 3B and 3C (top view or bottom view of the packaging box 1 of FIG. 1). As shown in FIG. 2, the tongue piece 7B is a flap-shaped portion formed on the first outer flap 3B and is provided in a region overlapping the inner flap 3A. Each tongue piece 7B of the present embodiment is formed by two notches 7c provided at the tip of the first outer flap 3B (the end farthest from the top plate 2B).

The two notches 7c are both linear, and have a divergent shape in which the distance between them increases as the distance from the top plate 2B increases. That is, the tongue piece 7B has a trapezoidal shape with each notch 7c as a leg in a plan view of the first outer flap 3B. In this trapezoidal shape, the dimension L2 of the lower base 7e is longer than the dimension L1 of the upper base 7d (L1 <L2). The tongue piece 7B is swingable around the trapezoidal upper base 7d. In the deformed state, the tongue piece 7B is inserted into the hole 7A and then bent inward along a line along the upper base 7d to be locked in the state of being inserted into the hole 7A.

FIG. 3 is a diagram in which the outer flaps 3B and 3C are omitted from FIG. 2 (in other words, the outer flaps 3B and 3C in FIG. 2 are seen through). As shown in FIG. 3, each hole 7A is formed in a rectangular shape. More specifically, each hole 7A is surrounded by two first sides (two sides) 7f extending perpendicular to the top ruled line 6 and two second sides 7g extending parallel to the top ruled line 6. It has a rectangular shape.

In the present embodiment, the distance between the two first sides 7f is shorter than the trapezoidal lower base 7e formed by the tongue piece 7B. In other words, the dimension L3 of each second side 7g is shorter than the dimension L2 of the trapezoidal lower base 7e formed by the tongue piece 7B (L3 <L2). The dimension L3 of each second side 7g is made equal to, for example, the dimension L1 of the trapezoidal upper base 7d formed by the tongue piece 7B (L3 = L1).

Hereinafter, a procedure for changing the packaging box 1 from the basic state to the deformed state will be described with reference to FIGS. 4 and 5. FIG. 4 shows a state in which both the bottom ruled line 5 and the top ruled line 6 are bent in the packaging box 1. In FIG. 4, the first outer flap 3B is omitted in order to make the inner flap 3A easier to see.

First, the inner flaps 3A and the outer flaps 3B and 3C are both deployed. Next, as shown in FIG. 4, after the second outer flap 3C is folded inward and overlapped with the inside of the bottom plate 2C (upper side in FIG. 4), the bottom plate 2C and the second outer flap 3C are placed on the top. It is bent at the bottom ruled line 5 toward the plate 2B. That is, the bottom ruled line 5 is bent convexly toward the top plate 2C. As a result, the bottom plate 2C and the second outer flap 3C are deformed into a V shape protruding toward the top plate 2B between the two side plates 2A.

Subsequently, each inner flap 3A is bent along the top ruled line 6, and the folding piece 3d is arranged so as to overlap the inside of the top plate 2B. More specifically, after each inner flap 3A is bent at a right angle along the top ruled line 6, the folding piece 3d is pressed against the top plate 2B from the inside. At this time, the top ruled line 6 is arranged along the boundary line B2 between the top plate 2B and the first outer flap 3B.

Along with this, the inner flap 3A is changed to a posture in which the bottom plate 2C side is tilted inward. As a result, the hole portion 7A has a posture in which the first side 7f extends perpendicularly to the top plate 2B and the second side 7g extends parallel to the top plate 2B. Further, by determining the posture of the inner flap 3A with respect to the top plate 2B, the postures of the bottom plate 2C and the second outer flap 3C are also determined. In other words, the folding angle of the bottom ruled line 5 is determined by arranging the top ruled line 6 along the boundary line B2 between the top plate 2B and the first outer flap 3B.

When the bending of the bottom ruled line 5 and the top ruled line 6 is completed as described above, the holding means 7 holds each of the bent states of the bottom ruled line 5 and the top ruled line 6. Specifically, as shown in FIG. 5, each first outer flap 3B is bent at the boundary line B2 with the top plate 2B and is arranged so as to overlap the outside of the two inner flaps 3A, and each tongue piece 7B is arranged. After being pushed into the hole 7A from the outside, it is bent along a line along the upper bottom 7d and locked to the hole 7A. As a result, the two inner flaps 3A are fixed (held) to each first outer flap 3B. Further, by maintaining the posture of each inner flap 3A, the bending angle of the bottom ruled line 5 is fixed (held).

The packaging box 1 is transformed into a table 1'by being changed from the basic state to the deformed state in this way. The table 1'(that is, the deformed packaging box 1) is used in a posture in which the top plate 2B is substantially horizontal above the bottom plate 2C. At the table 1', the holding means 7 holds the two side portions 2A in a posture in which they approach each other as they move downward. In other words, on the table 1', the two side portions 2A are held in an inclined posture with respect to the vertical direction.

[1-2. Sheet material]
FIG. 6 is a plan view (expanded view of the packaging box 1) of the sheet material 10 that can be assembled in the packaging box 1. The sheet material 10 of the present embodiment is formed of a corrugated cardboard sheet. The sheet material 10 includes the above-mentioned four panels 2, eight flaps 3, a bottom ruled line 5, a top ruled line 6, and a holding means 7.

In the sheet material 10, the four panels 2 are connected in the lateral direction D1. In the present embodiment, the four panels 2 are formed on the top plate 2B, one side plate 2A, the bottom plate 2C, and the other side plate 2A from one side of the lateral direction D1 to the other side (from the left side to the right side in FIG. 6). The case where they are arranged in order is illustrated. The top plate 2B is connected to a bonding piece 11 for connecting the top plate 2B and the other side plate 2A to each other when the sheet material 10 is assembled in the packaging box 1. The bonding piece 11 is projected from the top plate 2B in a direction away from one side plate 2A.

The flaps 3 are connected to both sides of the vertical direction D2 of each panel 2. Specifically, the inner flaps 3A are connected to both sides of each side plate 2A in the vertical direction D2, the first outer flap 3B is connected to both sides of the top plate 2B in the vertical direction D2, and the second outer flap 3C is connected to both sides of the bottom plate 2C in the vertical direction. It is connected to both sides of the direction D2. The vertical direction D2 referred to here is a direction orthogonal to the horizontal direction D1 among the directions along the extending surface of the sheet material 10.

The bottom ruled line 5 extends along the vertical direction D2 over the bottom plate 2C and the second outer flap 3C at an intermediate position in the horizontal direction D1 between the bottom plate 2C and the second outer flap 3C. The top ruled line 6 extends at each inner flap 3A so as to be inclined with respect to the vertical direction D2. More specifically, the top ruled line 6 is from the end of the boundary line B1 between the side plate 2A and the inner flap 3A on the opposite side of the bottom plate 2C (the top plate 2B side in the packaging box 1) to the bottom plate 2C side. It extends diagonally and linearly toward. The extending direction of the flute 4a of the core 4 of the sheet material 10 is the vertical direction D2.

[2. Action, effect]
(1) The packaging box 1 is arranged along a bottom ruled line 5 that is bent convexly toward the top plate 2B in a deformed state and a boundary line B2 that is bent in a deformed state and is bent toward the top plate 2B and the first outer flap 3B. It is provided with a top ruled line 6 to be formed. Further, the packaging box 1 is provided with a holding means 7 for holding the folding angle of the bottom ruled line 5 and holding the position of the top ruled line 6 with respect to the boundary line B2 between the top plate 2B and the first outer flap 3B in the deformed state. There is. Therefore, by deforming the packaging box 1 as shown in FIG. 5, the packaging box 1 can function as a table 1'. Therefore, the utilization of the packaging box 1 can be enhanced.

In the deformed state, each side plate 2A is provided so as to be inclined in the vertical direction. Therefore, when a compressive load CL is applied to the top plate 2B by an object (not shown) placed on the top plate 2B, the side plate 2A is provided. It is possible to prevent buckling from occurring in 2A. In other words, by arranging the side plate 2A at an angle with respect to the direction of gravity in the deformed state, it is possible to suppress the occurrence of buckling of the side plate 2A when an object is placed on the top plate 2B. can. Therefore, according to the packaging box 1, the rigidity and strength of the table 1'can be ensured.

In the deformed state, the bottom plate 2C and the second outer flap 3C are elastically deformed by being bent at the bottom ruled line 5. Therefore, the lower ends of the two side plates 2A are separated from each other by the elastic force F that the bottom plate 2C and the second outer flap 3C try to return to their original shapes (stretch so as to eliminate the bending). Be urged to. On the other hand, in the deformed state, the two side plates 2A are in a posture of approaching each other as they move downward. Therefore, when an object is placed on the top plate 2B, the compression load CL described above causes the two side plates 2A to have the same posture. A moment M in the direction of bringing the lower ends closer to each other acts.

In this way, in the deformed state, when an object is placed on the top plate 2B, the bottom plate 2C and the second outer flap 3C bent by the bottom ruled line 5 with respect to the moment M generated in the side plate 2A by the compressive load CL. The elastic force F acts to oppose (repel). Therefore, when an object is placed on the top plate 2B, the deformation of the table 1'can be suppressed. Therefore, the shape of the table 1'can be stabilized.

(2) The holding means 7 is locked in a state in which a pair of flap-shaped tongue pieces 7B formed on each first outer flap 3B and a tongue piece 7B formed on each inner flap 3A and inserted in a deformed state. It has a hole 7A to be formed. Therefore, the packaging box 1 can be held in the deformed state only by inserting the tongue piece 7B into the hole 7A from the outside and locking the tongue piece 7B. In this way, if the holding means 7 is composed of the tongue piece 7B and the hole 7A, it is only necessary to make a notch 7c in the first outer flap 3B and provide the hole 7A in the inner flap 3A. It can have a simple structure.

(3) As shown in FIGS. 2 and 3, the tongue piece 7B is trapezoidal and the hole 7A is rectangular, and the distance between the rectangular first sides 7f formed by the hole 7A is the tongue piece. Since it is shorter than the trapezoidal lower bottom 7e formed by the 7B, the tongue piece 7B can be easily locked in the state of being inserted into the hole 7A. That is, when the tongue piece 7B is inserted into the hole 7A, even if it moves in the direction of exiting the hole 7A, it is caught in the portion corresponding to the first side 7f, so that the tongue piece 7B is pulled out of the hole 7A. It can be made difficult.

Further, by providing the two rectangular first sides 7f formed by the hole portion 7A perpendicular to the top ruled line 6, the hole portion 7A can be inclined according to the top ruled line 6. Therefore, as shown in FIGS. 4 and 5, when the top ruled line 6 is bent and arranged along the boundary line B2 between the top plate 2B and the first outer flap 3B, the hole portion 7A has a rectangular shape. The second side 7g of the tongue piece 7B can be arranged parallel to the trapezoidal upper bottom 7d formed by the tongue piece 7B. As a result, the tongue piece 7B can be easily inserted into the hole 7A, and the tongue piece 7B can be easily bent along the line along the upper base 7d. Therefore, the packaging box 1 can be more easily transformed into the table 1'.

(4) Since the packaging box 1 is formed of a corrugated cardboard sheet having a core 4 and the bottom ruled line 5 extends parallel to each flute 4a of the core 4, the bottom plate 2C and the second outer flap 3C are formed by the bottom ruled line 5. It can be easily folded. Therefore, the packaging box 1 can be more easily transformed into the table 1'.

(5) Since the packaging box 1 is configured in the deformed state of the table 1', the above-mentioned actions and effects can be obtained also by the table 1'. Further, in the table 1', the holding means 7 holds the two side plates 2A in a posture of approaching each other as they go downward. Therefore, as described above, the elastic force F of the bottom plate 2C and the second outer flap 3C bent by the bottom ruled line 5 can be opposed to the moment M generated in the side plate 2A by the compressive load CL. As a result, when an object is placed on the top plate 2B, the deformation of the table 1'can be suppressed. Therefore, the shape of the table 1'can be stabilized.

(6) Since the sheet material 10 can be assembled in the packaging box 1, the above-mentioned actions and effects can also be obtained by the sheet material 10. Further, in the sheet material 10, the panel 2 is connected to the horizontal direction D1 and the flaps 3 are connected to both sides of the panel 2 in the vertical direction D2. Therefore, the bottom ruled line 5 can be extended along the vertical direction D2 over the bottom plate 2C and the second outer flap 3C, and the top ruled line 6 can be provided symmetrically on the inner flaps 3A on both sides of the side plate 2A. Therefore, it is possible to facilitate the processing of the bottom ruled line 5 and the top ruled line 6.

[3. Modification example]
The packaging box 1 may be of a wraparound type. Further, each flute 4a of the core 4 may extend in the vertical direction in a deformed state on the side plate 2A of the packaging box 1. In other words, the extending direction of each flute 4a of the core 4 may be the lateral direction D1 in the sheet material 10. By setting the orientation of the core 4 in this way, the rigidity of the side plate 2A with respect to the compressive load CL can be increased when the packaging box 1 is in a deformed state. Therefore, the shape of the table 1'can be made more stable.

The configuration of the holding means 7 described above is an example, and the shapes and arrangements of the tongue piece 7B and the hole 7A are not limited to those described above. The hole 7A may be formed in a flap shape, for example, as long as the tongue piece 7B is locked in the inserted state. Further, the holding means 7 may be configured by using an element (for example, tape) other than the tongue piece 7B and the hole 7A.

The bottom ruled line 5 and the top ruled line 6 may have a structure that guides the bending operation, and are not limited to the groove and the lead ruled line described above. The bottom ruled line 5 may be formed on each outer surface (surface facing outward) of the bottom plate 2C and the second outer flap 3C. Similarly, the top ruled line 6 may be formed on the outer surface (the surface facing outward) of each inner flap 3A. If the bottom ruled line 5 is formed on the outer surface of the bottom plate 2C, the bottom plate 2C can be more easily bent convexly toward the top plate 2B at the bottom ruled line 5. Therefore, the packaging box 1 can be more easily transformed into the table 1'.

If the angle (tilt angle of the top ruled line 6) formed by the top ruled line 6 with respect to the boundary line B2 between the top plate 2B and the first outer flap 3B in the basic state is too small, the buckling of the side plate 2A cannot be suppressed and is large. If it is too much, the above-mentioned moment M will increase. Therefore, the inclination angle of the top ruled line 6 may be appropriately set to a size that can suppress the increase in the moment M while suppressing the buckling of the side plate 2A according to the dimensions of the packaging box 1.

The order in which the bottom ruled line 5 and the top ruled line 6 are bent is not particularly limited. Contrary to the above-mentioned order, the bottom ruled line 5 may be bent after the top ruled line 6 is bent. Alternatively, the bottom ruled line 5 and the top ruled line 6 may be bent at the same time.
The packaging box 1, the table 1'and the sheet material 10 may all be formed of a sheet-like member, and the material is not limited to the corrugated cardboard sheet.

1 Packaging box 1'Table 2 Panel 2A Side plate (1st panel)
2B top plate (second panel)
2C bottom plate (second panel)
3 Flap 3A Inner flap 3B First outer flap (outer flap)
3C Second outer flap (outer flap)
3d Folded piece 4 Core 4a Flute 5 Bottom ruled line 6 Top ruled line 7 Holding means 7A Hole 7B Tongue piece 7c Notch 7d Upper bottom 7e Lower bottom 7f First side (two sides)
7g Second side 10 Sheet material 11 Laminating piece B1 Boundary line between side plate 2A and inner flap 3A B2 Boundary line between top plate 2B and first outer flap 3B CL Compressive load F Elastic force D1 Horizontal direction D2 Vertical direction L1 Above Bottom 7d dimensions L2 Bottom bottom 7e dimensions L3 Second side 7g dimensions M Moment

Claims (6)

It is a packaging box that has four rectangular panels forming a square cylinder and eight flaps connected to both sides of each of the panels, and forms a hexahedron in the basic state of packaging articles.
The four panels are two side plates facing each other, a top plate arranged above the side plates in a deformed state deformed from the basic state, and a bottom plate arranged below the top plate in the deformed state. Consists of
The eight flaps are the two first outer flaps connected to the top plate and the two second outer flaps connected to the bottom plate and facing each other together with the first outer flap in the basic state. It is composed of four inner flaps which are connected to each of the side plates and are arranged so as to overlap the inside of the first outer flap and the second outer flap in the basic state.
A bottom ruled line provided on the bottom plate and the second outer flap, extending linearly at an intermediate position between the two side plates, and being bent convexly toward the top plate in the deformed state.
The top plate and the first outer surface are provided on the inner flap, extend diagonally linearly from the end on the top plate side at the boundary line with the side plate toward the bottom plate side, and are bent in the deformed state. The top ruled line placed along the border with the flap,
It is characterized in that it is provided with a holding means for holding the folding angle of the bottom ruled line in the deformed state and holding the position of the top ruled line with respect to the boundary line between the top plate and the first outer flap. Packaging box. The holding means is formed on a pair of flap-shaped tongue pieces formed on each of the first outer flaps and on each of the inner flaps, and is locked in a deformed state in which the tongue pieces are inserted. The packaging box according to claim 1, further comprising a hole portion. The tongue piece has a trapezoidal shape in a plan view of the first outer flap, and is swingable around the upper bottom of the trapezoidal shape.
The packaging according to claim 2, wherein the hole portion extends perpendicularly to the top ruled line and has a rectangular shape having two sides having a distance between each other shorter than that of the lower base of the trapezoidal shape. box. The packaging according to any one of claims 1 to 3, wherein each flute of the core on the side plate is formed of a corrugated cardboard sheet having a core and extends in the vertical direction in the deformed state. box. The packaging box according to any one of claims 1 to 4 is configured in the deformed state.
A table characterized in that the holding means holds the two side plates in a posture in which they approach each other as they go downward. It can be assembled in the packaging box according to any one of claims 1 to 4.
The panels are connected laterally and
The first outer flaps are connected to both sides of the top plate in the vertical direction.
The second outer flap is connected to both sides of the bottom plate in the vertical direction.
The inner flaps are connected to both sides of the side plates in the vertical direction, respectively.
The bottom ruled line extends along the longitudinal direction over the bottom plate and the two second outer flaps.
A sheet material in which the top ruled line extends at an angle with respect to the vertical direction.

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