Packaging box assembling sheet, blank sheet capable of forming packaging box assembling sheet, and packaging box

Abstract

To form a storage section at any position on a front plate through which an article is displayed.SOLUTION: A sheet for assembling a packaging box is provided with a front plate, a first side plate, a back plate and a second side plate connected in one direction, the front plate is further connected with a fixed side plate on the opposite side of the first side plate, the second side plate is connected with a mounting plate for placing an article on the side end edge on the opposite side of the back plate, the mounting plate is connected with a joint margin on the opposite side of the second side plate, the mounting plate is provided with one or more valley folding lines for recessing the mounting plate in a V-shape at the middle part in the width direction of the mounting plate, the joint margin is fixed on the inside of the first side plate, and when the first and second side plates are raised, the width dimension of the mounting plate is set with respect to the back plate so as to form a rectangular cylindrical shape in cross sectional view surrounded with the first side plate, the back plate, the second side plate and the mounting plate. The width dimension of the front plate is smaller than the width dimension of the back plate, and the mounting plate is formed in a V-shape by fixing the joint margin to the inside of the first side plate, superposing the front plate on the plate surface of the mounting plate, and superposing the fixed side plate on the second side plate to manufacture the box.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a packaging box assembling sheet, a blank sheet from which the packaging box assembling sheet can be formed, and a packaging box. [Background technology]

[0002] Conventionally, in places where goods are sold, transparent resin cover members or films have been widely used to cover the backing paper or cases that hold the goods so that the actual items inside the case can be seen from outside the package while the goods are held inside the case.

[0003] However, from the perspective of environmental protection, there is a demand for products that do not use petroleum-based resins. For example, Patent 1 below is known as a paper packaging box that can hold items while displaying them. The packaging box of Patent Document 1 is configured so that a storage section can be formed by pushing a space between two slits formed at a corner of the rectangular packaging box, spanning the front panel and side panel, into the inside of the packaging box at a right angle. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 60-195710 Summary of the Invention [Problem to be solved by the invention]

[0005] However, the conventional packaging box has a structure in which one corner of the packaging box is used to form the storage section for the article, and therefore has a problem in that it is difficult to place the article in the center of the packaging box. Therefore, the present invention provides a packaging box capable of forming a storage section at any position on the left or right side including the center of the front panel through which an article is shown. [Means for solving the problem]

[0006] The blank sheet of the present invention comprises a front plate, a first side plate, a rear plate and a second side plate which are connected in one direction so as to form a cylindrical portion, the front plate being connected to a fixed side plate on the opposite side to the side to which the first side plate is connected, the second side plate being connected to a mounting plate on which an article is placed on the opposite side to the side to which the rear plate is connected, the mounting plate being connected to a joint space which is fixed to an inner surface of the first side plate on the opposite side to the side to which the second side plate is connected, the mounting plate being provided with one or more valley fold lines in a widthwise intermediate portion thereof which make the mounting plate V-shaped, the joint space being fixed to the inner surface of the first side plate, The width dimension of the mounting plate is set relative to the width dimension of the rear plate so that when the first side plate and the second side plate are raised, a rectangular tubular shape in cross section is formed surrounded by the first side plate, the rear plate, the second side plate and the mounting plate, and the width dimension of the front plate is set smaller than the width dimension of the rear plate.The mounting plate is placed opposite the rear plate and the joint is fixed to the inside of the first side plate, and the front plate is placed opposite a plate surface of a mounting plate different from the plate surface facing the rear plate, and the box is made so that the fixed side plate overlaps the second side plate, thereby forming the mounting plate into a V shape. According to this configuration, the placement plate is placed in the packaging box without swinging.

[0007] The front panel of the blank sheet of the present invention may have a display window through which the packaged article can be seen. According to this configuration, the packaged item can be displayed through the display window.

[0008] The width dimension of the front panel may be set so that when the front panel of the blank sheet of the present invention is placed opposite the loading plate and the fixed side panel is overlapped on the second side panel, the valley fold line that folds the loading plate into a V shape contacts the rear panel. According to this configuration, the mounting plate can be fixed more reliably.

[0009] An upper cover portion and a lower cover portion may be provided at both open ends of the cylindrical portion of the blank sheet of the present invention so as to be freely opened, and a notch may be formed at both ends along the axial direction of the loading plate. According to this configuration, interference between the placement plate and the upper and lower lids can be avoided during box making.

[0010] The packaging box assembling sheet of the present invention is formed from any one of the blank sheets described above.

[0011] The packaging box of the present invention is formed from the packaging box-assembling sheet. Effect of the Invention

[0012] The packaging box of the present invention has an advantage that a storage section can be formed at any position on the left or right side including the center of the front panel through which an article is shown. [Brief description of the drawings]

[0013] [Figure 1] 1 is a front view of a blank sheet for assembling a packaging box according to one embodiment of the present invention, as viewed from the inner side. FIG. [Diagram 2] FIG. 2 is a front view showing a folding process for producing a packaging box assembling sheet according to one embodiment of the present invention. [Diagram 3] FIG. 2 is a front view showing a folding process for producing a packaging box assembling sheet according to one embodiment of the present invention. [Figure 4] 1A is a front view showing a process of assembling a packaging box using a packaging box assembling sheet according to one embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line AA in FIG. [Diagram 5] 1A is a front view showing a process of assembling a packaging box using a packaging box assembling sheet according to one embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line BB in FIG. [Figure 6] 1A is a plan view showing a packaging box X assembled using a packaging box assembling sheet according to one embodiment of the present invention, and FIG. 1B is a cross-sectional view taken along line CC in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, an embodiment of the blank sheet, packaging box forming sheet, and packaging box of the present invention will be described with reference to the drawings. The dimensions of each part of the drawings used in the following description are not necessarily the same as the actual ones, and can be changed as appropriate. In addition, in this embodiment, each part of the present invention may be referred to as upper, lower, left, and right, but these are intended to indicate the relative positional relationship of each part when the packaging box is installed with the front panel showing the article as the front and the lower cover as the bottom surface, unless otherwise specified in this specification.

[0015] FIG. 1 is a front view of a blank sheet 1a for producing a packaging box assembling sheet according to one embodiment of the present invention, as viewed from the inside.

[0016] As shown in Fig. 1, a blank sheet 1a according to one embodiment of the present invention mainly comprises a front plate 2, a first side plate 3, a back plate 4 and a second side plate 5, which are connected in one direction (the left-right direction in Fig. 1) so as to be able to form a tubular portion 10 shown in Fig. 6, and a mounting plate 6 which is further connected in the same direction to the second side plate 5. In addition, a joint 7 is provided on the mounting plate 6 to fix the mounting plate 6 to the first side plate 3.

[0017] The blank sheet 1a in this embodiment is provided with an upper cover portion 8 and a lower cover portion 9 that can open and close openings 10a, 10b (see Figure 6) at both axial ends of a tubular portion 10 formed by a front panel 2, a first side panel 3, a back panel 4 and a second side panel 5, as well as a hanging portion 15 for a packaging box X used during box making.

[0018] The front panel 2 is formed into an approximately rectangular shape surrounded by an upper edge 2a, a lower edge 2b, and left and right side edges when the blank sheet 1a is viewed from the inside in the same up-down orientation as when it is displayed as a packaging box.

[0019] The front panel 2 is formed with an oval display window 16 that extends in the direction between the upper and lower edges 2a, 2b and extends beyond the left and right side edges to the first side panel 3 and a fixed side panel 17 described later. The rectangular shape of the front plate 2 is not particularly limited, but in this embodiment, the direction in which the side edges extend, that is, the direction between the upper and lower edges 2a, 2b, is taken as the longitudinal direction.

[0020] A first side panel 3 is connected to one side edge 2c (hereinafter referred to as the "front first side edge 2c") of the front panel 2. A fixed side panel 17 is connected to the other side edge 2d (hereinafter referred to as the "front second side edge 2d") of the front panel 2 (the side opposite to the first side panel 3) and is overlapped and fixed onto the second side panel 5 during box making.

[0021] The first side panel 3 is surrounded by an upper edge 3a, a lower edge 3b, a front first side edge 2c, and a back first side edge 4c that is provided parallel to the front first side edge 2c, and is formed into a substantially rectangular shape. The front first side edge 2c side of the first side panel 3 is cut out as a part of the display window 16.

[0022] The first side panel 3 has approximately the same longitudinal dimension as the front panel 2, and is formed so that the upper edges 2a, 3a and the lower edges 2b, 3b are approximately aligned in one direction. The short sides of the first side panel 3 (i.e., the upper edges 3a and lower edges 3b) are one element that determines the thickness dimension between the front panel 2 and the back panel 4 during box making. Side flaps 18 are provided adjacent to the upper edge 3a and the lower edge 3b of the first side panel 3, respectively, for covering part of the tubular portion 10 when the box is made.

[0023] The fixed side panel 17 is formed symmetrically with the first side panel 3, except that it has an insertion portion 17p at a side edge 17d that is parallel to the second front side edge 2d and forms the extreme end in the width direction of the blank sheet 1a. Side flaps 18 are also connected to the upper edge 17a and lower edge 17b of the fixed side panel 17.

[0024] An upper cover 8 and a lower cover 9 are connected to the upper edge 2a and the lower edge 2b of the front plate 2, respectively, so as to open and close the openings at both ends in the direction of the axis L of the cylindrical portion 10 shown in Fig. 6. The upper cover 8 and the lower cover 9 each have an insertion portion 8p, 9p at their tip. The front plate 2, the first side plate 3 and the fixed side plate 17 having the above-mentioned configuration are formed symmetrically except for the insertion portion 17p formed on the side edge of the fixed side plate 17.

[0025] A rear plate 4 is connected to the first side plate 3 at a rear first side edge 4c opposite to a front first side edge 2c to which the front plate 2 is connected. The rear panel 4 is formed into a substantially rectangular shape by being surrounded by an upper edge 4a, a lower edge 4b, a rear first side edge 4c, and a rear second side edge 4d provided parallel to the rear first side edge 4c. An insertion slit S into which the insertion portion 17p provided on the fixed side panel 17 can be inserted is formed in the middle portion (the center portion in this embodiment) of the second rear side edge 4d in the extending direction.

[0026] The rear panel 4 has approximately the same longitudinal dimension as the front panel 2 and the first side panel 3, and is formed so that the upper edges 2a-4a and the lower edges 2b-4b are approximately aligned in one direction. The width dimension of the rear panel 4, i.e., the dimension of the upper edge 4a (or the lower edge 4b), is set larger than the width dimension of the front panel 2, i.e., the dimension of the upper edge 2a (or the lower edge 2b). A hanging portion 15 is connected to the upper edge 4a of the back panel 4.

[0027] The hanging portion 15 is formed so that when folded at a folding line 15a extending parallel to the upper end edge 4a, the hanging portion 15 overlaps almost entirely to form a roughly rectangular shape. Also, the hanging portion 15 is formed with hanging holes 15h, 15h that communicate with each other when folded at the folding line 15a. An insertion portion 15p is provided adjacent to the tip of the hanging portion 15, and is inserted along the inner surface of the back panel 4 during box making.

[0028] A second side panel 5 is connected to the rear second side edge 4d of the rear panel 4. The second side panel 5 is formed into a substantially rectangular shape by an upper edge 5a, a lower edge 5b, a rear second side edge 4d, and an inner second side edge 6d that is provided parallel to the rear second side edge 4d.

[0029] The second side panel 5 has approximately the same longitudinal dimension as the front panel 2, first side panel 3, and back panel 4, and is formed so that upper edges 2a-5a and lower edges 2b-5b are approximately aligned in one direction. The short sides of the second side panel 5 (i.e., upper edge 5a and lower edge 5b) have approximately the same dimensions as the upper and lower edges 3a, 3b of the first side panel 3, and, like the first side panel 3, are one element that determines the thickness dimension between the front panel 2 and back panel 4 during box making. A mounting plate 6 is connected to the second side panel 5 at an inner second side edge 6d opposite to the rear second side edge 4d to which the rear panel 4 is connected.

[0030] The placement plate 6 is surrounded by an upper edge 6a, a lower edge 6b, a second inner side edge 6d, and a first inner side edge 6c that is provided parallel to the second inner side edge 6d. Two valley fold lines 20 extending between the upper and lower edges 6a, 6b are formed in the center of the width direction of the mounting plate 6, i.e., in the direction (one direction) of the connection with the second side plate 5. From the viewpoint of ease of folding, it is preferable that the valley fold lines 20 have slits that penetrate or cut in half in the thickness direction of the plate at regular intervals as appropriate, although this is not essential. The two valley fold lines 20 are formed at the same distance from the center of the mounting plate 6 in the width direction.

[0031] The upper edge 6a of the mounting plate 6 is inclined from both ends toward the lower edge toward the upper ends of the valley folds 20, 20, forming a shallow V-shaped notch 21a as a whole. The depth of the V of the upper edge 6a is formed to be longer than the insertion length of the insertion portion 8p of the upper cover portion 8.

[0032] The lower edge 6b of the mounting plate 6 is bent toward the upper edge 6a in a generally rectangular shape near the center in the width direction to form a notch 21b. The notch 21b is formed so as to sandwich the valley fold lines 20, 20 in the width direction and to be longer in the longitudinal direction than the insertion length of the insertion portion 9p of the lower cover 9.

[0033] The longitudinal dimension of the mounting plate 6 is equal to or smaller than the longitudinal dimensions of the front plate 2, the first side plate 3, the rear plate 4, and the second side plate 5. The width of the mounting plate 6 is approximately the same as the width of the rear plate 4. In this way, the mounting plate 6 is formed symmetrically with respect to the center line in the width direction.

[0034] The mounting plate 6 has a joint margin 7 on the first inner side edge 6c. The joint margin 7 has a length dimension smaller than the first inner side edge 6c and a width dimension slightly smaller than the width dimension of the first side panel 3, and is formed in a trapezoid shape that tapers slightly toward the tip side in the one direction.

[0035] The blank sheet 1a having the above-mentioned structure is formed into a packaging box-assembling sheet 1A in the following manner. As shown in FIG. 2, the blank sheet 1a is folded at the inner second side edge 6d, and the inner surface of the placement plate 6 is overlapped with the inner surface of the back plate 4. In this way, the joint margin 7 overlaps the rear plate 4 with the tip edge 7e aligned with the rear first side edge 4c.

[0036] Adhesive is applied to the outer surface of the joint 7 (the surface facing forward in Figure 2), and the blank sheet 1a is folded at the first rear edge 4c to overlap the first side panel 3, the front panel 2 and the fixed side panel 17 on the outer surface of the support plate 6 as shown in Figure 3. As a result, the inner surface of the first side panel 3 is overlapped on the outer surface of the joint 7 and fixed with adhesive, the front first side edge 2c roughly overlaps the inner surface first side edge 6c, and the inner surface of the front panel 2 is overlapped on the outer surface of the mounting plate 6. Through the above steps, the packaging box assembling sheet 1A of the present invention is completed.

[0037] Next, as shown in Figures 4(a) and (b), when the first side panel 3 and the second side panel 5 are raised relative to the back panel 4, the first side panel 3, the back panel 4, the second side panel 5 and the mounting panel 6 open at the top and bottom, forming a rectangular tubular shape when viewed in the direction of the axis L.

[0038] Next, as shown in Figures 5(a) and (b), a valley fold is made at the valley fold line 20 of the mounting plate 6. Then, the first side plate 3 and the second side plate 5 are inclined, and the width of the mounting plate 6 is narrowed. As shown in Figures 6(a) and (b), the front first side edge 2c and the front second side edge 2d on both sides of the front plate 2 are folded and overlapped with the inner first side edge 6c and the inner second side edge 6d, respectively.

[0039] In this case, since the mounting plate 6 has approximately the same width as the back plate 4, i.e., a width larger than that of the front plate 2, the mounting plate 6 has a V-shape that is recessed toward the back plate 4 in order to match the width of the mounting plate 6 to the width of the front plate 2. In this case, the front plate 2, the first side plate 3, the back plate 4, and the second side plate 5 have a trapezoidal shape that is recessed toward the front plate 2 when viewed in the direction of the axis L.

[0040] Then, by setting the width dimensions of the front panel 2, the first side panel 3, the second side panel 5, the loading panel 6 and the rear panel 4, the bottom 6y between the valley fold lines 20, 20 is brought into contact with the inside of the rear panel 4, and an item storage section D, as shown by the imaginary line, is formed between the loading panel 6 and the front panel 2.

[0041] The front panel 2 is opened, an object is placed in the storage section on the mounting plate 6, the front panel 2 is placed on top of it, the insertion section 17p is inserted into the insertion slit S, and the upper and lower lid sections 8 and 9 are closed to form a packaging box X containing the object. Note that the object to be stored is an object having a longitudinal dimension greater than the longitudinal dimension of the display window section 16.

[0042] In this way, the blank sheet 1a of the present invention can be folded at the inner second side edge 6d and then at the back first side edge 4c, and adhesive can be applied to the joint 7 before or during this process to extremely easily create a packaging box assembly sheet 1A ready to be made into a box having a mounting plate 6 inside.

[0043] In addition, when assembling a packaging box X using the packaging box assembly sheet 1A, the first side panel 3 and the second side panel 5 are raised and a fold is created along the valley fold line 20, thereby forming a storage section D for items or the like, as shown by the imaginary line in FIG. 6(b), in an extremely simple manner.

[0044] Furthermore, the front plate 2 is stacked with the valley fold line 20 folded, folded at the front first side edge 2c and the front second side edge 2d, and the fixed side plate 17 is stacked on the second side plate 5 and the insertion portion 17p is inserted, so that the placement plate 6 can be reliably fixed. That is, when the front plate 2 is stacked on the placement plate 6 and the fixed side plate 17 is stacked on the second side plate 5, the placement plate 6 is bent in a V-shape so that the front first side edge 2c and the inner first side edge 6c, and the front second side edge 2d and the inner second side edge 6d, respectively, tend to overlap. Then, the packaging box X is in a state where the first side plate 3 is fixed to the joint margin 7, and the fixed side plate 17 is stacked and fixed on the second side plate 5.

[0045] Therefore, the V-shape of the mounting plate 6 sandwiched between the first side plate 3 and the fixed side plate 17 and second side plate 5 is almost completely fixed to form a stable storage section D. Furthermore, as shown in Fig. 6(b), the bottom 6y of the V-shape of the mounting plate 6 is fixed in contact with the back plate 4, so that the position of the mounting plate 6 within the cylindrical section 10 becomes even more stable.

[0046] As described above, the blank sheet 1a of the present invention has the effect of making it possible to produce a packaging box-assembling sheet 1A capable of forming a stable mounting plate 6 extremely easily. Furthermore, the packaging box assembling sheet 1A of the present invention makes it possible to form a packaging box X that allows a stable placement plate 6 to be formed extremely easily.

[0047] The box is assembled so that the front first side edge 2c and the inner first side edge 6c, the front second side edge 2d and the inner second side edge 6d overlap, the first side panel 3 and the joint margin 7, and the fixed side panel 17 and the second side panel 5 overlap. Therefore, the packaging box assembling sheet 1A and the packaging box X have the effect of maintaining the shape of the storage section D and showing the article as widely as possible without compromising the stability of the placement plate 6, even if the display window 16 is opened to reach the first side panel 3 and the fixed side panel 17. The packaging box assembling sheet 1A and the packaging box X also have the effect of increasing the degree of freedom in design of the packaging box X with respect to the shape of the display window 16.

[0048] In addition, since notches 21a, 21b are formed on the top and bottom of the mounting plate 6, it is possible to avoid a situation in which the bottom 6y of the mounting plate 6 becomes V-shaped and the insertion portions 8p, 9p of the upper and lower lid portions 8, 9 interfere with each other, making it difficult to close the lid.

[0049] In this embodiment, notches 21a, 21b are formed on the top and bottom of the mounting plate 6. However, the mounting plate 6 is substantially rectangular, and the longitudinal dimension may be reduced to avoid interference with the insertion portions 8p, 9p of the upper and lower lid portions 8, 9 at the top and bottom, respectively. Moreover, the display window 16 does not necessarily have to extend to the first side panel 3 and / or the second side panel 5.

[0050] Also, only one valley fold line 20 may be formed and provided so as not to contact the inner surface of the back panel 4, or preferably so as to contact the inner surface. Furthermore, the position of the valley fold line 20 does not necessarily have to be located at the widthwise center of the back panel 4 or the front panel 2, so long as it is formed at a position that allows the packaged item to be effectively displayed in the display window portion 16. [Explanation of symbols]

[0051] 1A Packaging box assembly sheet 1a Blank sheet 2 Front plate 3 First side panel 4 Back plate 5 Second side panel 6. Placement plate 8 Top cover 9 Lower lid part 16 Exhibition window 20 Valley fold 21a Notch 21b Notch X packaging box

Claims

1. The device includes a front plate, a first side plate, a rear plate, and a second side plate that are arranged in one direction to form a cylindrical portion, A fixed side plate is further connected to the front plate on the opposite side to the side to which the first side plate is connected, A loading plate for placing an article is further connected to the second side plate on the opposite side to the side to which the back plate is connected, The mounting plate has a joint portion connected to an inner surface of the first side plate on the opposite side to the side where the second side plate is connected, The intermediate portion of the loading plate in the width direction is provided with one or more valley fold lines that make the loading plate V-shaped; The width dimension of the mounting plate is set relative to the width dimension of the rear plate so that when the joint is fixed to the inside of the first side plate and the first side plate and the second side plate are raised, a rectangular tubular shape is formed in cross section surrounded by the first side plate, the rear plate, the second side plate, and the mounting plate; The width dimension of the front panel is set smaller than the width dimension of the rear panel, A packaging box assembly sheet in which the placement plate is formed in a V shape by placing the placement plate opposite the rear plate and fixing the joint to the inside of the first side plate, and placing the front plate opposite a plate surface of the placement plate different from the plate surface facing the rear plate, and forming the box so that the fixed side plate overlaps the second side plate.

2. 2. The packaging box assembling sheet according to claim 1, wherein the front plate has an exhibition window through which an article to be packaged can be seen.

3. 3. A packaging box assembly sheet as described in claim 1 or 2, wherein the width dimension of the front panel is set so that when the front panel is placed opposite the loading panel and the fixed side panel is overlapped on the second side panel, the valley fold line that folds the loading panel into a V shape contacts the rear panel.

4. An upper lid portion and a lower lid portion are provided at both open ends of the cylindrical portion so as to be freely opened, 3. The packaging box assembling sheet according to claim 1, wherein a notch is formed in each of both axial ends of said support plate.

5. A blank sheet from which the packaging box assembling sheet according to claim 1 or 2 can be formed.

6. A packaging box formed using the packaging box assembling sheet according to claim 1 or 2.

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