Packing box

Abstract

To provide a packaging member causing little damage of a corner part of an outer box against impact like falling.SOLUTION: A body part 20 of a packaging box 1 is formed of a pair of facing first peripheral face plates 21 and 22, and a pair of facing second peripheral face plates 23 and 24 orthogonal to the pair of first peripheral face plates 21 and 22. A lid part 30 has a first lid plate 31 and a second lid plate 32. The first lid plate 31 is continued to a first end edge 21a on an open face side of one first peripheral face plate 21 of the pair of first peripheral face plates, to close an open face. The second lid plate is continued to a second end edge 22a on the open face side of the other first peripheral face plate 22 of the pair of first peripheral face plates, and bonded to an upper face of the first lid plate 31 via a bonding region P2. The second lid plate 32 is separated to a bonding piece 321 bonded to the first lid plate 31, and a peeling piece 322 peeled from the bonding piece 321 along a break line 32a with one side continued to the second end edge 22a and formed to face the one side.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a packing box.

Background Art

[0002] A conventional packing box is disclosed in Patent Document 1. This packing box has a lid portion that closes the opening surface of the body portion. The lid portion has a first lid plate that covers the opening surface and a second lid plate that is adhered to the upper surface of the first lid plate via an adhesion region. The second lid plate has a belt-like portion surrounded by a break line.

[0003] By peeling off the belt-like portion along the break line extending in parallel, the second lid plate is divided and the opening surface of the body portion is opened.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] According to the above conventional packing box, when opening, since the belt-like portion is separated from the packing box, there is a problem that the number of garbage increases. Also, when opening, there is a problem that the belt-like portion breaks halfway and the convenience is low.

[0006] In order to achieve the above object, an object of the present invention is to provide a packing box that can improve the convenience at the time of opening while reducing the amount of garbage.

Means for Solving the Problems

[0007] In order to achieve the above object, the packaging box of the first configuration of the present invention is assembled by bending a cardboard sheet, and has a trunk portion in the shape of a rectangular tube in cross section and a lid portion for closing the opening surface of the trunk portion. The trunk portion is composed of a pair of opposed first peripheral plates and a pair of second peripheral plates opposed to the pair of first peripheral plates and orthogonal thereto. The lid portion has a first lid plate and a second lid plate. The first lid plate is connected to the first edge on the opening surface side of one of the pair of first peripheral plates, and closes the opening surface. The second lid plate is connected to the second edge on the opening surface side of the other of the pair of first peripheral plates, and is adhered to the upper surface of the first lid plate via an adhesion region. The second lid plate is separated into an adhesion piece adhered to the first lid plate and a peeling piece whose one side is connected to the second edge and is peeled off from the adhesion piece along a breaking line formed so as to face one side.

Advantages of the Invention

[0008] In the configuration of the present invention, it is possible to provide a packaging box that can improve the convenience at the time of opening while reducing the amount of garbage.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0010] <First Embodiment> Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the packaging box 1 according to the first embodiment, and FIG. 2 is a perspective view showing an enlarged view of one end portion in the longitudinal direction of the packaging box 1, showing the state before opening.

[0011] The packaging box 1 is an individual packaging box for individually packaging an object to be packaged (for example, a toner cartridge in this embodiment). The packaging box 1 is a rectangular parallelepiped box body with one end portion in the longitudinal direction being openable. The packaging box 1 is assembled by bending a cardboard sheet punched out into a predetermined shape. A plurality of packaging boxes 1 are accommodated in a collective box (not shown) larger than the packaging box 1 in contact with each other without gaps.

[0012] The packaging box 1 has a body portion 20 and a lid portion 30. The body portion 20 is composed of a pair of first peripheral plates 21 and 22 facing each other, and a pair of second peripheral plates 23 and 24 facing each other orthogonally to the pair of first peripheral plates 21 and 22. In this embodiment, it is composed of a pair of first peripheral plates 21 and 22 facing up and down, and a pair of second peripheral plates 23 and 24 facing front and back. The second peripheral plate 23 connects the front ends of the pair of first peripheral plates 21 and 22. The second peripheral plate 24 connects the rear ends of the pair of first peripheral plates 21 and 22.

[0013] The lid portion 30 closes the opening surface of the body portion 20 and is openable and closable after the packaging box 1 is opened. The lid portion 30 is composed of a first lid plate 31, a second lid plate 32, and a pair of flap plates 33 and 34 (see FIG. 3). The first lid plate 31 is connected to the first edge 21a on the opening surface side of the first peripheral plate 21. The second lid plate 32 is connected to the second edge 22a on the opening surface side of the first peripheral plate 22. The second lid plate 32 is adhered to the upper surface of the first lid plate 31 via an adhesion region P2.

[0014] The flap plate 33 is connected to the edge on the opening surface side of the second peripheral plate 23. The flap plate 34 is connected to the edge on the opening surface side of the second peripheral plate 24.

[0015] The second cover plate 32 has a broken line 32a and a through hole 32b. The broken line 32a crosses between the adhesion region P2 and the second edge 22a. The second cover plate 32 is divided along the broken line 32a. The broken line 32a is formed in a V shape convex toward the second edge 22a. The through hole 32b is disposed adjacent to the central portion in the extending direction of the broken line 32a. In the present embodiment, the through hole 32b is disposed adjacent to the apex of the broken line 32a and a finger can be inserted therein.

[0016] The first cover plate 31 has a pair of cut lines 31a. The pair of cut lines 31a are formed linearly and disposed around the region facing the through hole 32b. One end of the cut line 31a is disposed at the tip of the first cover plate 31. Thereby, when the region facing the through hole 32b is pressed downward, the first cover plate 31 separates along the cut line 31a and a pressing piece 31b is formed.

[0017] The flap plate 33 is provided with a slit-shaped insertion hole 33a. The flap plate 34 is provided with a trapezoidal insertion piece 34a that can be inserted into the insertion hole 33a. By inserting the insertion piece 34a into the insertion hole 33a, the flap plate 33 and the flap plate 34 can be engaged.

[0018] FIG. 3 shows a developed view of the packaging box 1. The packaging box 1 has a paste margin piece 25, a second peripheral panel 24, a first peripheral panel 21, a second peripheral panel 23, and a first peripheral panel 22 that are successively connected via a folding line L. The first peripheral panels 21 and 22 and the second peripheral panels 23 and 24 are formed in a rectangle.

[0019] A first cover plate 31 is connected via a folding line L (first edge 21a) to one end in the longitudinal direction of the first peripheral panel 21, and a bottom plate 28 is connected via a folding line L to the other end in the longitudinal direction of the first peripheral panel 21. A second cover plate 32 is connected via a folding line L (second edge 22a) to one end in the longitudinal direction of the first peripheral panel 22, and a bottom plate 26 is connected via a folding line L to the other end in the longitudinal direction of the first peripheral panel 22.

[0020] A flap plate 33 is connected in series to one longitudinal end of the second circumferential panel 23 via a fold line L, and a flap plate 27 is connected in series to the other longitudinal end of the second circumferential panel 23 via the fold line L. A flap plate 34 is connected in series to one longitudinal end of the second circumferential panel 24 via the fold line L, and a flap plate 29 is connected in series to the other longitudinal end of the second circumferential panel 24 via the fold line L.

[0021] The above-mentioned break line 32a and through hole 32b are formed in the second cover plate 32. The above-mentioned cut line 31a is formed in the first cover plate 31. The break line 32a and the cut line 31a are formed in a perforated shape in which a plurality of cuts penetrating the packaging box 1 are continuously formed discontinuously.

[0022] The assembly of the packaging box 1 is first to perform a mountain fold on each fold line L and bond the inner surface of the paste margin piece 25 and the outer surface of the first circumferential panel 21 via the bonding area P1. Thereby, a cylindrical body 20 is formed. Next, the outer surface of the first cover plate 31 and the inner surface of the second cover plate 32 are bonded via the bonding area P2. Thereby, one longitudinal end portion of the packaging box 1 is closed.

[0023] Next, for example, a toner cartridge (not shown) is inserted into the packaging box 1, and the outer surface of the bottom panel 28 and the inner surface of the bottom panel 26 are bonded via the bonding area P3. Thereby, the other longitudinal end portion of the packaging box 1 is closed, and the assembly of the packaging box 1 and the packaging operation of the toner cartridge are completed.

[0024] Figures 4 and 5 are perspective views of the packaging box 1, showing the state after opening. When opening, insert the index finger into the through hole 32b, break the first cover plate 31 along the cut line 31a, and push through the push piece 31b. Next, pick up and lift the overlapping first cover plate 31 and second cover plate 32 with the thumb and index finger. As a result, the second cover plate 32 breaks along the break line 32a and is separated into the adhesive piece 321 and the peeling piece 322. The adhesive piece 321 of the separated second cover plate 32 remains adhered to the first cover plate 31 through the adhesion area P2. Also, the peeling piece 322 of the separated second cover plate 32 remains in a state of being peeled off from the adhesive piece 321 along the break line 32a formed so as to face one side and having one side connected to the second edge 22a. Therefore, it is possible to provide the packaging box 1 that can improve the convenience during opening while reducing the amount of garbage.

[0025] By folding back the peeling piece 322 of the second cover plate 32, the first cover plate 31, and the flap plates 33 and 34 to the outside, one end in the longitudinal direction of the packaging box 1 opens. As a result, the contents can be easily taken out from the packaging box 1.

[0026] Also, after the packaging box 1 is opened, the packaging box 1 can be closed by inserting the insertion piece 34a into the insertion hole 33a and engaging the flap plate 33 and the flap plate 34.

[0027] <Second Embodiment> Next, the second embodiment will be described. Figures 6 and 7 are perspective views showing an enlarged view of one end portion in the longitudinal direction of the packaging box 1 according to the second embodiment. Figure 6 shows the state before opening, and Figure 7 shows the state after opening. For convenience of explanation, the same parts as those in the first embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals. In this embodiment, the shape of the break line 32a is different.

[0028] The break line 32a is formed in a convex V shape toward the first edge 21a. Cutting lines 321a are formed at both ends of the second edge 22a. The cutting line 321a is formed by a cut that penetrates the cardboard sheet. The cutting line 321a may be in the form of a perforation in which the cuts are continuously formed discontinuously.

[0029] The broken line 32a has a pair of inclined portions 322a extending from the inner end of the cutting line 321a toward the first edge 21a. The cut line 31a is formed in a U shape in plan view and surrounds the area facing the through hole 32b. Thereby, when the area facing the through hole 32b is pressed downward, the first cover plate 31 breaks on the cut line 31a, and the pushing piece 31b is formed.

[0030] At the time of opening, insert the index finger into the through hole 32b, and lift the overlapping first cover plate 31 and second cover plate 32 by pinching them with the thumb and index finger. Thereby, the broken line 32a breaks along the inclined portion 322a and reaches the cutting line 321a. Thereby, it is separated into the adhesive piece 321 and the peeling piece 322. At this time, the peeling piece 322 is formed in a substantially triangular shape.

[0031] It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is shown not by the description of the above embodiments but by the claims, and further includes all changes within the meaning and scope equivalent to the claims.

[0032] For example, in the above embodiment, the packaging box 1 has a pair of first peripheral plates 21 and 22 facing each other vertically, but the pair of first peripheral plates 21 and 22 may be arranged facing each other front and back or left and right. Further, the broken line 32a may be linear or wavy, etc. other than V-shaped.

[0033] Also, the configurations obtained by appropriately combining the configurations of the above-described embodiments and modifications are also included in the technical scope of the present invention.

Explanation of reference numerals

[0034] 1 Packaging box 20 Barrel part 21, 22 First peripheral plates 21a First edge 22a Second edge 23, 24 Second peripheral plates 25 Paste margin piece 26 Bottom plate 27 Flap plate 28 Bottom plate 29 Flap plate 30 Cover part 31 First cover plate 31a Cutting line 31b Pushing-in piece 32 Second cover plate 32a Breaking line 32b Through hole 33, 34 Flap plates 33a Insertion hole 34a Insertion piece 321 Adhesive piece 321a Cutting line 322a Inclined part 322 Release piece L-fold line P1, P2, P3, Adhesive areas

Claims

1. It is assembled by bending a cardboard sheet, and has a rectangular cross-section and a square tube-shaped body, and a lid that closes the opening surface of the body, wherein the body is composed of a pair of opposed first peripheral plates and a pair of second peripheral plates that are orthogonal to and opposed to the pair of first peripheral plates, and the lid has a first lid plate that is continuously provided at a first edge on the opening surface side of one of the pair of first peripheral plates and closes the opening surface, and a second lid plate that is continuously provided at a second edge on the opening surface side of the other of the pair of first peripheral plates and is adhered to the upper surface of the first lid plate via an adhesive region, wherein the second lid plate is separated into an adhesive piece that is adhered to the first lid plate and a peeling piece that has one side continuously provided at the second edge and is peeled off from the adhesive piece along a breaking line formed so as to face the one side, the second lid plate is disposed adjacent to the central portion in the extending direction of the breaking line and has a through hole into which a finger can be inserted, the first lid plate is provided with a cutting line around a region facing the through hole and has a pushing piece that can be separated and pushed in along the cutting line, one end of the cutting line is disposed at the tip of the first lid plate, and at the time of opening, a finger is pushed into the through hole, the region of the first lid plate facing the through hole is pressed downward to break the first lid plate along the cutting line, and a pushing piece that is partially continuously provided on the first lid plate is broken through. A packaging box characterized by this.

2. The packaging box according to claim 1, wherein the breaking line is formed in a V-shaped shape convex toward the second edge.

3. The packaging box according to claim 1, wherein the breaking line is formed in a V-shaped shape convex toward the first edge.

4. Cutting lines are formed at both ends of the second edge, and the breaking line has a pair of inclined portions extending from the inner ends of the cutting lines toward the first edge. The packaging box according to claim 3, characterized by this.

5. The lid has a pair of flap plates respectively continuously provided at the side edges of the pair of second peripheral plates, one of the flap plates has a through hole penetrating therethrough, and the other flap plate is formed with an insertion piece that can be inserted into the through hole. The packaging box according to any one of claims 1 to 4, characterized by this.

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