Packing box

Abstract

To provide a packaging box whose inclination angle can be changed arbitrarily.SOLUTION: A packaging box includes a packaging box main body 2 that is provided with an opening window 20B on a front wall surface 20 and can store a predetermined content N, and an opening / closing member 3 capable of opening / closing the opening window 20B. The packaging box main body 2 is provided separately from the opening / closing member 3. The opening / closing member 3 is provided in the packaging box main body 2 and includes: an inclination portion 30 that inclines downward toward a side of the opening window 20B; and an opening / closing portion 31 that is provided outside the packaging box main body 2 and is integrally provided so as to be inclined with respect to the inclination portion 30 such that the opening window 20B can be opened and closed.SELECTED DRAWING: Figure 3

Description

Technical Field

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

Background Art

[0002] As a conventional packing box, for example, the one described in Patent Document 1 is known. The packing box described in Patent Document 1 has a bottom opening on the lower surface, a peripheral wall for accommodating contents inside, and is provided so as to extend from the lower end portion at the rear of the peripheral wall toward the front so as to close the bottom opening and be in contact with or close to the lower end portion at the front of the peripheral wall, and forms a gap for taking out the contents between the lower end portion at the front of the peripheral wall by bending downward, and is provided with a bottom wall.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above-mentioned packing box has a problem that the inclination angle of the bottom wall cannot be arbitrarily changed.

[0005] Therefore, in view of the above problems, an object of the present invention is to provide a packing box whose inclination angle can be arbitrarily changed.

Means for Solving the Problems

[0006] The object of the present invention is achieved by the following means. The numbers in parentheses are the reference numerals of the embodiments described later, but the present invention is not limited thereto.

[0007] According to the packing box of claim 1, an opening window (20B) is provided on one side surface (front wall surface 20), and a packing box body (2, 2A, 2B) capable of storing a predetermined content (N), and an opening / closing member (3, 3A, 3B) capable of opening and closing the opening window (20B), wherein the packing box body (2, 2A, 2B) and the opening / closing member (3, 3A, 3B) are provided separately, and the opening / closing member (3, 3A, 3B) is provided inside the packing box body (2, 2A, 2B), and has an inclined portion (30) that inclines downward toward the opening window (20B) side, and an opening / closing portion (31) that is provided outside the packing box body (2, 2A, 2B) and is integrally provided so as to be tiltable with respect to the inclined portion (30) so as to be able to open and close the opening window (20B). 、 A support piece (30B) is provided on the lower side of the opening / closing part (31). In the packaging box body (2B), at a position facing the support piece (30B), a support hole (20BcB) capable of locking the support piece (30B) is provided. It is characterized by this.

[0008] According to the invention of claim 2, in the packing box (1, 1A, 1B) according to claim 1, a protrusion (20Ba) is provided on the upper side of the opening window (20B).

[0009] According to the invention of claim 3, in the packing box (1, 1A, 1B) according to claim 1 or 2, a locking hole (20A) is provided on one side surface (front wall surface 20) of the packing box body (2, 2A, 2B), and a locking piece (31A, 31AA) capable of being locked to the locking hole (20A, 20AA) is provided on the opening / closing portion (31).

[0010] According to the invention of claim 4, in the packing box (1, 1A, 1B) according to any one of claims 1 to 3, on both side surfaces (left side surface 31a, right side surface 31b) of the opening / closing portion (31), along with the tilting operation of the opening / closing portion (31), a pair of wall portions (left wall portion 32, right wall portion 33) that can be inserted into and removed from the inside of the packing box body (2, 2A, 2B) through the inside of the opening window (20B) are provided. On each of the pair of wall portions (left wall portion 32 and right wall portion 33), when the opening / closing portion (31) tilts in the direction of opening the opening window (20B), a contact piece (34) is provided which contacts the inner surface (20C) of one side surface (front wall surface 20) of the packing box body (2, 2A, 2B). This is the gist of the invention.

[0011] According to the invention of claim 5, in the packing box (1, 1A, 1B) described in claim 4 above, on both side surfaces of one side surface (front wall surface 20) of the packing box body (2, 2A, 2B), notch portions (20B1) communicating with the opening window (20B) are respectively provided. In the notch portion (20B1), the pair of wall portions (left wall portion 32 and right wall portion 33) are respectively inserted. This is the gist of the invention.

[0012] According to the invention of claim 6, in the packing box (1, 1A, 1B) described in any one of claims 1 to 5 above, the width (lateral width W2) of the inclined portion (30) is formed to be narrower than the width (lateral width W1) of the opening / closing portion (31). This is the gist of the invention.

Advantages of the Invention

[0014] Next, the effects of the present invention will be described with reference numerals in the drawings. Note that the reference numerals in parentheses are those of the embodiments described later, but the present invention is not limited thereto.

[0015] According to the invention of claim 1, since the packing box body (2, 2A, 2B) and the opening / closing member (3, 3A, 3B) are provided separately, it is possible to freely change only the inclination angle of the inclined portion (30) of the opening / closing member (3, 3A, 3B). Therefore, according to the present invention, it is possible to provide a packing box in which the inclination angle can be arbitrarily changed. Furthermore, according to the invention of claim 1, the support hole (20BcB) provided in the packaging box body (2B) is provided at a position facing the support piece (30B), and the support piece (30B) can be locked in the support hole (20BcB). And further, the support piece (30B) is provided on the lower side of the opening / closing part (31). Thereby, even if the opening / closing part (31) is tilted, the displacement between the packaging box body (2B) and the opening / closing member (3B) is less likely to occur, and thus the stability is improved.

[0016] According to the invention of claim 2, since the protrusion portion (20Ba) is provided on the upper side of the opening window (20B), it is possible to prevent a situation where a plurality of predetermined contents (N) jump out to the outside of the opening window (20B).

[0017] According to the invention of claim 3, if the locking pieces (31A, 31AA) provided on the opening / closing part (31) are locked in the locking holes (20A, 20AA), the state in which the opening / closing part (31) closes the opening window (20B) can be maintained. Thereby, it is possible to reduce the situation where a predetermined content (N) accidentally jumps out from the opening window (20B).

[0018] According to the invention of claim 4, on each of the pair of wall parts (left wall part 32, right wall part 33), there is provided a contact piece (34) that contacts the inner surface (20C) of one side surface (front wall surface 20) of the packaging box body (2, 2A, 2B) when the opening / closing part (31) tilts in the direction of opening the opening window (20B). Thereby, if the contact piece (34) is provided at a free position of the pair of wall parts (left wall part 32, right wall part 33), the opening / closing part (31) can be stopped at a desired angular position with respect to one side surface (front wall surface 20) of the packaging box body (2, 2A, 2B).

[0019] According to the invention of claim 5, since the pair of wall parts (left wall part 32, right wall part 33) are respectively inserted into the notch part (20B1), the pair of wall parts (left wall part 32, right wall part 33) will be inserted into and removed from the inside of the packaging box body (2, 2A, 2B) through the notch part (20B1). Thereby, the pair of wall parts (left wall part 32, right wall part 33) can be smoothly inserted into and removed from the inside of the packaging box body (2, 2A, 2B) without being affected by the shape of the opening window (20B).

[0020] According to the invention of claim 6, the width (lateral width W2) of the inclined part (30) is formed narrower than the width (lateral width W1) of the opening / closing part (31). Thereby, it is possible to prevent the inclined part (30) from getting in the way and making it difficult for the opening / closing part (31) to be exposed outside the opening window (20B) of the packaging box body (2, 2A, 2B).

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Embodiments for Carrying Out the Invention

[0023] Hereinafter, an embodiment of the present invention will be specifically described with reference to the drawings. In the following description, when indicating the up / down, left / right directions, it refers to the up / down, left / right as seen from the front of the illustration.

[0024] <Description of the packaging box> As shown in FIGS. 1 to 3, the packaging box 1 according to the present embodiment includes a packaging box body 2 capable of storing a predetermined content N, and an opening / closing member 3 provided separately from the packaging box body 2. Hereinafter, each component will be described in detail.

[0025] <Explanation of the packaging box body> As shown in FIG. 3, the packaging box body 2 is formed in a substantially rectangular cross-sectional shape with a cavity K formed inside, and a plurality of contents N (six in the illustration) can be stacked vertically and stored in this cavity K. And as shown in FIG. 2, on the front wall surface 20 of the packaging box body 2, a substantially rectangular opening window 20B is provided so as to penetrate inside and outside the packaging box body 2 on the lower wall surface 25 side.

[0026] By the way, the packaging box body 2 formed in this way is formed using a single sheet S1 made of cardboard or the like as shown in FIG. 4(a). In this regard, to explain in detail, as shown in FIG. 4(a), the single sheet S1 has a vertically long rectangular front wall surface 20. In the central portion of this front wall surface 20, a substantially T-shaped locking hole 20A is formed, and on the lower surface side, an opening window 20B penetrating in a substantially rectangular shape from the left side surface to the right side surface is formed. And on the upper side of this opening window 20B, a semicircular protrusion 20Ba is formed so as to be integral with the front wall surface 20 toward the lower surface side of the front wall surface 20 (toward the opening window 20B side). And further, a folding line 20Bb is formed on the lower surface of this opening window 20B, and based on this folding line 20Bb, a trapezoidal flap 20Bc is formed so as to be integral with the front wall surface 20 toward the upper surface side of the front wall surface 20 (toward the opening window 20B side). Furthermore, on the upper surface of the opening window 20B, slight cutout portions 20B1 are formed on the left and right side surfaces respectively toward the upper surface side of the front wall surface 20 (in the direction away from the opening window 20B). Note that this pair of cutout portions 20B1 communicates with the opening window 20B.

[0027] Thus, as shown in Fig. 4(a), bending lines 20a to 20d are formed on the outer peripheral surface of the front wall surface 20 formed in this way. And on the upper surface of this front wall surface 20, a rectangular upper wall surface 21 having the same width as the front wall surface 20 is provided continuously with the front wall surface 20 with the bending line 20a as a base point. A bending line 21a is formed on the upper surface of this upper wall surface 21, and a rectangular outer flap 22 having the same width as the upper wall surface 21 is provided continuously with the upper wall surface 21 with this bending line 21a as a base point. Note that a pair of slits 21b are slightly formed on the upper surface of the upper wall surface 21 so as to communicate with the bending line 21a on the left and right side surfaces.

[0028] On the other hand, as shown in Fig. 4(a), on the right side surface of the front wall surface 20, a rectangular right wall surface 23 having the same vertical width as the front wall surface 20 is provided continuously with the front wall surface 20 with the bending line 20b as a base point. A bending line 23a is formed on the upper surface of this right wall surface 23, and a rectangular right inner flap 24 having the same width as the right wall surface 23 is provided continuously with the right wall surface 23 with this bending line 23a as a base point. Note that a right protruding piece 24a is integrally provided on the right inner flap 24 on the bending line 23a side.

[0029] On the other hand, as shown in Fig. 4(a), a bending line 23b is formed on the lower surface of the right wall surface 23, and a substantially trapezoidal first lower wall surface 25a having the same width as the right wall surface 23 is provided continuously with the right wall surface 23 with this bending line 23b as a base point.

[0030] On the other hand, as shown in Fig. 4(a), on the lower surface of the front wall surface 20, a substantially trapezoidal second lower wall surface 25b having the same width as the front wall surface 20 is provided continuously with the front wall surface 20 with the bending line 20c as a base point.

[0031] On one hand, as shown in Fig. 4(a), on the left side surface of the front wall surface 20, a rectangular left wall surface 26 having a vertical width approximately the same as that of the front wall surface 20 is provided continuously with the front wall surface 20 with the folding line 20d as the base point. A folding line 26a is formed on the upper surface of this left wall surface 26, and a rectangular left inner flap 27 having a horizontal width approximately the same as that of the left wall surface 26 is provided continuously with the left wall surface 26 with the folding line 26a as the base point. Note that a left protruding piece 27a is integrally provided on the left inner flap 27 on the folding line 26a side.

[0032] On the other hand, as shown in Fig. 4(a), a folding line 26b is formed on the lower surface of the left wall surface 26, and a substantially trapezoidal third lower wall surface 25c having a horizontal width approximately the same as that of the left wall surface 26 is provided continuously with the left wall surface 26 with the folding line 26b as the base point. Further, a folding line 26c is formed on the left side surface of the left wall surface 26, and a rectangular rear wall surface 28 having a vertical width approximately the same as that of the left wall surface 26 is provided continuously with the left wall surface 26 with the folding line 26c as the base point. A folding line 28a is formed on the lower surface of this rear wall surface 28, and a concave fourth lower wall surface 25d having a horizontal width approximately the same as that of the rear wall surface 28 is provided continuously with the rear wall surface 28 with the folding line 28a as the base point. And a folding line 28b is formed on the left side surface of the rear wall surface 28, and a vertically long rectangular pasting margin 29 having a vertical width approximately the same as that of the rear wall surface 28 is provided continuously with the rear wall surface 28 with the folding line 28b as the base point.

[0033] Note that the lower wall surface 25 shown in Figs. 1 to 3 is composed of a first lower wall surface 25a, a second lower wall surface 25b, a third lower wall surface 25c, and a fourth lower wall surface 25d.

[0034] <Description of the opening and closing member> As shown in FIG. 3, the opening / closing member 3 is provided inside the packaging box body 2 and has an inclined portion 30 that inclines downward toward the opening window 20B side. As shown in FIG. 3, this inclined portion 30 inclines downward from the rear wall surface 28 to the front wall surface 20 of the packaging box body 2 so that the lower end portion 30A of the inclined portion 30 is located on the lower surface of the opening window 20B. And as shown in FIG. 3, a plurality of contents N (six in the drawing) stored in the cavity K of the packaging box body 2 are stacked vertically on this inclined portion 30. Further, an opening / closing portion 31 having an L-shaped cross section is integrally provided on this inclined portion 30 so as to be continuous with the lower end portion 30A. As shown in FIG. 2, this opening / closing portion 31 is formed in a substantially semi-circular arc shape, and as shown in FIG. 3, it is formed so as to be tiltable in the direction of arrow Y1 so as to be able to open and close the opening window 20B. In FIG. 3, the state located at the broken line portion of the opening / closing portion 31 indicates the state of closing the opening window 20B, and the state located at the solid line portion indicates the state of opening the opening window 20B.

[0035] On the other hand, as shown in FIG. 2, a fan-shaped left wall portion 32 is integrally erected on the left side surface 31a of the opening / closing portion 31, and a fan-shaped right wall portion 33 is integrally erected on the right side surface 31b of the opening / closing portion 31. As shown in FIG. 3, the left wall portion 32 and the right wall portion 33 are provided so as to be insertable and removable into the packaging box body 2 through the opening window 20B when the opening / closing portion 31 tilts in the direction of arrow Y1. That is, the state located at the solid line portion of the right wall portion 33 (left wall portion 32) shown in FIG. 3 is the state of being pulled out from the inside of the packaging box body 2, and the state located at the broken line portion of the right wall portion 33 (left wall portion 32) is the state of being inserted into the packaging box body 2. Further, as shown in FIG. 2, the left wall portion 32 and the right wall portion 33 are inserted into the notch portion 20B1. As a result, the left wall portion 32 and the right wall portion 33 are inserted and removed into the packaging box body 2 through the notch portion 20B1, so that they can be smoothly inserted and removed into the packaging box body 2 regardless of the shape of the opening window 20B.

[0036] Incidentally, as shown in FIG. 3, a rectangular contact piece 34 projects integrally outward from the arc surface of the right wall portion 33 (left wall portion 32). As a result, when the opening / closing portion 31 tilts in the direction of opening the opening window 20B and, accordingly, the left wall portion 32 and the right wall portion 33 are pulled out from inside the packaging box body 2, as shown in FIG. 3, the contact piece 34 comes into contact with the inner surface 20C of the front wall surface 20 of the packaging box body 2. However, when the contact piece 34 comes into contact with the inner surface 20C of the front wall surface 20 of the packaging box body 2, the movement of the opening / closing portion 31, the left wall portion 32, and the right wall portion 33 is restricted. Therefore, as shown in FIG. 3, the opening / closing portion 31 can only move to a position 90 degrees with respect to the front wall surface 20 of the packaging box body 2. Thus, if the contact piece 34 is provided at a free position on the arc surface of the right wall portion 33 (left wall portion 32), the opening / closing portion 31 can be stopped at a desired angular position with respect to the front wall surface 20 of the packaging box body 2.

[0037] On the other hand, as shown in FIG. 2, a semi-circular locking piece 31A projects integrally outward from the central portion of the arc surface of the opening / closing portion 31. As shown in FIGS. 1 and 3, this locking piece 31A can be inserted into the locking hole 20A of the packaging box body 2. Thereby, as shown in FIG. 1, the state in which the opening window 20B is closed by the opening / closing portion 31 (see FIG. 3) can be maintained. Therefore, it is possible to reduce the situation where the contents N accidentally jump out from the opening window 20B.

[0038] Incidentally, the opening and closing member 3 formed in this way is formed using a single sheet S2 made of cardboard or the like, as shown in Fig. 4(b). In this regard, to explain in detail, as shown in Fig. 4(b), the single sheet S2 has a rectangular inclined portion 30. On the outer peripheral surface of this inclined portion 30, bending lines 30a to 30d are formed as shown in Fig. 4(b). And on the upper surface of this inclined portion 30, starting from the bending line 30a, a substantially semi-circular arc-shaped opening and closing portion 31 having the same width as the inclined portion 30 is provided continuously with the inclined portion 30. In the central portion of the arc surface of this inclined portion 30, a bending line 31Aa is formed, and starting from this bending line 31Aa, a semi-circular locking piece 31A protrudes integrally outward. Further, a bending line is formed on the left side surface 31a of the inclined portion 30, and starting from this bending line, a fan-shaped left wall portion 32 having the same vertical width as the inclined portion 30 is provided continuously with the inclined portion 30. And further, a bending line is formed on the right side surface 31b of the inclined portion 30, and starting from this bending line, a fan-shaped right wall portion 33 having the same vertical width as the inclined portion 30 is provided continuously with the inclined portion 30. Note that rectangular contact pieces 34 protrude integrally outward on the arc surfaces of the left wall portion 32 and the right wall portion 33, respectively.

[0039] On the other hand, as shown in Fig. 4(b), on the right side surface of the inclined portion 30, starting from the bending line 30b, a trapezoidal first support portion 35 that supports the inclined portion 30 having the same vertical width as the inclined portion 30 is provided continuously with the inclined portion 30. And on the lower surface of the inclined portion 30, starting from the bending line 30c, a rectangular second support portion 36 that supports the inclined portion 30 having the same width as the inclined portion 30 is provided continuously with the inclined portion 30. And further, on the left side surface of the inclined portion 30, starting from the bending line 30d, a trapezoidal third support portion 37 that supports the inclined portion 30 having the same vertical width as the inclined portion 30 is provided continuously with the inclined portion 30.

[0040] <Explanation of the method for assembling the packaging box> Thus, the packaging box 1 configured as described above is assembled as follows.

[0041] First, with the folding line 20d shown in Fig. 4(a) as the reference point, the left wall surface 26, the rear wall surface 28, and the adhesive margin 29 are folded outward, that is, mountain-folded. Further, with the folding line 26c as the reference point, the rear wall surface 28 and the adhesive margin 29 are folded outward, and with the folding line 28b as the reference point, the adhesive margin 29 is folded inward, that is, valley-folded.

[0042] Next, with the folding line 20b shown in Fig. 4(a) as the reference point, the right wall surface 23 is folded outward, that is, mountain-folded, and the adhesive margin 29 is attached to the right wall surface 23. Then, the packaging box body 2 will be in the state shown in Fig. 5. As a result, as shown in Fig. 3, a cavity K will be formed inside the packaging box body 2.

[0043] Next, with the folding line 30a shown in Fig. 4(b) as the reference point, the inclined portion 30 and the second support portion 36 are folded outward, that is, mountain-folded. Then, with the folding line 30c as the reference point, the second support portion 36 is folded inward, that is, valley-folded. Further, with the folding line 30b as the reference point, the first support portion 35 is folded inward, and with the folding line 30d as the reference point, the third support portion 37 is folded inward. And further, with the folding line formed on the left side surface 31a of the opening / closing member 3 as the reference point, the left wall portion 32 is folded outward, and with the folding line formed on the right side surface 31b of the opening / closing member 3 as the reference point, the right wall portion 33 is folded outward. As a result, the opening / closing member 3 will be in the state shown in Fig. 6.

[0044] Next, as shown in Fig. 6, the opening / closing member 3 is inserted into the packaging box body 2 from below the lower wall surface 25 of the packaging box body 2. As a result, as shown in Fig. 7, the opening / closing member 3 is inserted into the packaging box body 2 with the opening / closing portion 31 exposed outside through the opening window 20B of the packaging box body 2. At this time, the flap 20Bc shown in Fig. 6 is folded into the opening window 20B with the folding line 20Bb as the reference point.

[0045] Incidentally, as shown in Fig. 4(b), the lateral width W2 of the inclined portion 30 is formed to be narrower than the lateral width W1 of the opening / closing portion 31, that is, W1 > W2. This is because if the lateral width W2 of the inclined portion 30 and the lateral width W1 of the opening / closing portion 31 are made to be of the same degree, the inclined portion 30 will be in close contact with the inner wall surface of the packaging box body 2, making it difficult for the opening / closing portion 31 to be exposed outside the opening window 20B. Therefore, the lateral width W2 of the inclined portion 30 is formed to be narrower than the lateral width W1 of the opening / closing portion 31 so that the inclined portion 30 does not interfere and the opening / closing portion 31 is not made difficult to be exposed outside the opening window 20B of the packaging box body 2.

[0046] Next, as shown in Fig. 7, the inclined portion 30, the first support portion 35, the second support portion 36, and the third support portion 37 of the opening / closing member 3 exposed outside the packaging box body 2 are pushed into the packaging box body 2 so as to be immersed therein. Then, with the folding line 26b shown in Fig. 7 as a base point, the third lower wall surface 25c is bent inward, that is, valley-folded, and further, with the folding line 23b shown in Fig. 4 as a base point, the first lower wall surface 25a is bent inward. And further, with the folding line 28c shown in Fig. 6 as a base point, the fourth lower wall surface 25d is bent inward, and with the folding line 20c shown in Fig. 7 as a base point, the second lower wall surface 25b is bent inward. As a result, as shown in Fig. 8, the lower wall surface 25 having a so-called "American lock" structure is formed.

[0047] Next, with the folding line 26a shown in Fig. 8 as a base point, the left inner flap 27 is bent inward, that is, valley-folded, and with the folding line 23a shown in Fig. 4 as a base point, the right inner flap 24 is bent inward. As a result, the state shown in Fig. 9 is obtained. Before the left inner flap 27 and the right inner flap 24 are bent inward, the upper part of the packaging box body 2 is open. Therefore, a plurality of contents N or a single content N are put into the cavity K shown in Fig. 3 from this open upper part. And then, the left inner flap 27 and the right inner flap 24 will be bent inward.

[0048] Next, with the folding line 21a shown in FIG. 9 as a base point, the outer flap 22 is folded outward, that is, valley-folded, and the upper wall surface 21 is folded inward with the folding line 20a as a base point so as to conceal the outer flap 22 inside the packaging box body 2. As a result, the state as shown in FIG. 1 is obtained, and the upper part of the packaging box body 2 is closed. At this time, the left projecting piece 27a of the left inner flap 27 and the right projecting piece 24a of the right inner flap 24 are respectively inserted into the pair of slits 21b shown in FIG. 9. As a result, the outer flap 22 is firmly fixed and arranged inside the packaging box body 2, so that the upper part of the packaging box body 2 can be firmly closed by the upper wall surface 21.

[0049] Further, if the opening / closing part 31 is tilted in the direction of closing the opening window 20B so that the locking piece 31A is inserted into the locking hole 20A of the packaging box body 2, as shown in FIG. 1, the opening / closing part 31 can close the opening window 20B.

[0050] Thus, when using the packaging box 1 assembled as described above, the opening / closing part 31 is tilted in the direction of opening the opening window 20B to obtain the state shown in FIG. 2. Then, if the packaging box 1 is moved up and down in the direction of the arrow Y2 shown in FIG. 3, the content N in contact with the inclined part 30 (the lowermost content N shown in FIG. 3), that is, a single content N will jump out of the opening window 20B to the outside and move to the upper surface of the opening / closing part 31. As a result, the content N stored in the packaging box body 2 can be taken out. At this time, as shown in FIGS. 2 and 3, a protrusion 20Ba is provided so that a plurality of contents N do not jump out of the opening window 20B. That is, even if, for example, two contents N try to jump out of the opening window 20B, one content N located on the upper side of the packaging box body 2 among the two contents N is inhibited from jumping out to the outside by the protrusion 20Ba. Therefore, a single content N will jump out of the opening window 20B. As a result, the protrusion 20Ba can prevent a situation where a plurality of contents N jump out of the opening window 20B to the outside.

[0051] Thus, according to the present embodiment described above, since the packaging box main body 2 and the opening / closing member 3 are provided separately, it is possible to freely change only the inclination angle of the inclined portion 30 of the opening / closing member 3. Therefore, according to the present embodiment, it is possible to provide a packaging box 1 in which the inclination angle can be arbitrarily changed.

[0052] Note that the shapes and the like shown in the present embodiment are merely examples, and various modifications and changes are possible within the scope of the gist of the present invention described in the claims. For example, in the present embodiment, an example in which the shape of the protrusion 20Ba is semicircular is shown, but it is not limited thereto, and it may be rectangular or triangular, or any shape. Also, instead of a single protrusion 20Ba, a plurality of protrusions 20Ba may be formed at appropriate intervals.

[0053] Also, the shapes of the locking holes 20A and the locking pieces 31A shown in the present embodiment are merely examples, and any shape may be used. For example, it can also be made like the packaging box 1A shown in FIGS. 10 and 11. Hereinafter, this will be described in detail. Regarding the same configuration as the packaging box 1 described above, the same reference numerals will be given and the description will be omitted.

[0054] As shown in FIGS. 10 and 11, the packaging box main body 2A of the packaging box 1A has a concave slit formed in the central portion of the front wall surface 20 as shown in FIG. 11, and the locking hole 20AA is formed by this concave slit.

[0055] On the other hand, as shown in FIG. 11, the opening / closing member 3A of the packaging box 1A has a locking piece 31AA integrally protruding outward at the central portion of the arc surface of the opening / closing portion 31. This locking piece 31AA is composed of a semicircular locking piece main body 31AAa and a tongue-shaped insertion piece 31AAb formed near the opening / closing portion 31 at the central portion of the locking piece main body 31AAa.

[0056] Thus, when locking the locking piece 31AA to the locking hole 20AA configured as such, the opening / closing part 31 is tilted in the direction of closing the opening window 20B. Then, the locking piece main body 31AAa is grasped and the insertion piece 31AAb is inserted into the locking hole 20AA. Thereby, as shown in FIG. 10, the locking piece 31AA can be locked to the locking hole 20AA. Thus, even with such a locking hole 20AA and locking piece 31AA, the opening window 20B can be closed by the opening / closing part 31.

[0057] On the other hand, it can also be configured like the packaging box 1B shown in FIGS. 12 and 13. Hereinafter, this will be described in detail. For the same configurations as the above-described packaging box 1 and packaging box 1A, the same reference numerals will be given and the description will be omitted.

[0058] As shown in FIG. 12(b), a tongue-shaped support piece 30B is provided on the lower side of the opening / closing part 31 of the opening / closing member 3B of this packaging box 1B. Further, as shown in FIG. 12(a) (particularly, FIG. 12(b)), on the lower wall surface 25 side of the front wall surface 20 of the packaging box body 2B, a support hole 20BcB capable of locking the support piece 30B is provided at a position facing the support piece 30B. Thereby, even if the opening / closing part 31 is tilted, the deviation between the packaging box body 2B and the opening / closing member 3B is less likely to occur, and thus the stability is improved.

[0059] More specifically, the positions where the support piece 30B and the support hole 20BcB are provided will be described with reference to FIG. 13. As shown in a single sheet S2B shown in FIG. 13(b), a rectangular slit is provided at the central portion of the bending line 30a that is the base point of the opening / closing part 31 communicating with the inclined part 30. Thereby, the support piece 30B is formed in a tongue shape and is further provided on the lower side of the opening / closing part 31 of the opening / closing member 3B.

[0060] On one hand, as shown on a single sheet S1B shown in Fig. 13(a), a rectangular hole (a hole corresponding to the shape of the support piece 30B) penetrates through the inside and outside of the packaging box body 2 at the central portion of the folding line 20Bb located on the lower surface of the trapezoidal flap 20Bc. As a result, the support hole 20BcB is provided at a position facing the support piece 30B on the lower wall surface 25 side of the front wall surface 20 of the packaging box body 2B.

[0061] Thus, by providing the support piece 30B and the support hole 20BcB in this way, as shown in Fig. 12(b), the support piece 30B can be locked within the support hole 20BcB. As a result, even when the opening / closing part 31 is tilted, the displacement between the packaging box body 2B and the opening / closing member 3B is less likely to occur, and the stability is improved.

[0062] On the other hand, in this embodiment, an example of providing the opening window 20B on the front wall surface 20 of the packaging box body 2 is shown. However, it is not limited to this, and it may be provided on any of the right wall surface 23, the left wall surface 26, and the rear wall surface 28.

[0063] Also, the contents N shown in this embodiment can be applied to any items such as snacks and stationery.

Explanation of Reference Numerals

[0064] 1, 1A, 1B Packaging box 2, 2A, 2B Packaging box body 20 Front wall surface (one side surface) 20A, 20AA Locking hole 20B Opening window 20Ba Protrusion 20C Inner surface 20BcB Support hole 3, 3A, 3B Opening / closing member 30 Inclined portion 30B Support piece 31 Opening / closing part 31A, 31AA Locking piece 31a Left side surface 31b Right side surface 32 Left wall portion (wall portion) 33 Right wall portion (wall portion) 34 When the tab N Contents W1 Banner (width) W2 Banner (width)

Claims

1. A packing box body provided with an opening window on one side and capable of storing predetermined contents, and an opening / closing member capable of opening and closing the opening window, and having the packing box body and the opening / closing member are provided separately, the opening / closing member is provided in the packing box body and has an inclined portion that inclines downward toward the opening window side, and is provided outside the packing box body and is integrally provided so as to be tiltable with respect to the inclined portion so as to be able to open and close the opening window, and has an opening / closing portion, a support piece is provided on the lower side of the opening / closing portion, the packing box body is provided with a support hole at a position facing the support piece and capable of locking the support piece.

2. The packing box according to claim 1, wherein a protrusion is provided on the upper side of the opening window.

3. A locking hole is provided on one side surface of the packing box body, The packing box according to claim 1 or 2, wherein the opening / closing portion is provided with a locking piece capable of locking to the locking hole.

4. On both side surfaces of the opening / closing portion, a pair of wall portions that can be inserted into and removed from the packing box body through the opening window are provided along with the tilting operation of the opening / closing portion, and on each of the pair of wall portions, a contact piece that contacts the inner surface of one side surface of the packing box body when the opening / closing portion tilts in the direction of opening the opening window is provided. The packing box according to any one of claims 1 to 3.

5. Notches communicating with the opening window are provided on both side surfaces of one side surface of the packing box body, respectively, The packing box according to claim 4, wherein the pair of wall portions are respectively inserted into the notches.

6. The packing box according to any one of claims 1 to 5, wherein the width of the inclined portion is formed to be narrower than the width of the opening / closing portion.

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