JP2017019547A - Two-piece packing box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two-piece packing box which can be easily separated regardless of the weight of a content even when a tray and a cover are firmly fixed, and is excellent in compression strength in a packed state.SOLUTION: A two-piece packing box comprises a tray 1 and a cover 2. The tray 1 comprises a rear wall 3, a pair of side walls 4, and a bottom wall 30. The cover 2 comprises a front wall 21, a pair of side walls 22, and a top wall 31. Cut-off pieces 26 facing lower sides are formed on the side walls 22 by forming side part cut lines 25. In a packed state, the packing box is formed so that the side walls 22 overlap with the outsides of the side walls 4, the side walls 4, 22 are pasted inside the cut-off pieces 26, the top wall 31 is connected to an upper end of the rear wall 3, an upper cut line 11 for separating the tray 1 and the cover 2 is provided, and the side walls 22 reach a bottom part of the tray 1. When the packing box is unpacked, the cover 2 rotates forward by simply pulling a rear part of the top wall 31 forward and upward, and the tray 1 and the cover 2 are separated in a state in which the cut-off pieces 26 are pasted to the side walls 4 without interfering with the side walls 22.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a two-piece packaging box comprising a tray and a cover fixed on the tray and provided with a separating means.

  The following Patent Document 1 describes a two-piece packaging box including a tray 51 for storing contents and a cover 52 for covering the contents as shown in FIGS. 9 and 10. The tray 51 of the two-piece packaging box includes a bottom wall 53, a front wall 54 having a small vertical dimension, a rear wall 55 having a large vertical dimension, and a pair of trapezoidal side walls with an upper edge serving as a hypotenuse. 56 and a ceiling plate 57 that becomes a part of a ceiling wall 60 to be described later. The top plate 61, 62 which extends from the upper end of the side wall 59 and the front wall 58 and the side wall 59 and constitutes the top wall 60 is provided.

  In addition, a perforated cut line 63 is provided at the boundary between the rear wall 55 and the top plate 57, and a U-shaped cut line is provided at the center of the upper end of the rear wall 55 so as to face the cut line 63. A piece 64 is formed. The side wall 59 of the cover 52 is formed with a finger insertion hole 65 that faces the middle part of the oblique side.

  9, the cover 52 is fitted into the tray 51 so that the front wall 58 and the side wall 59 of the cover 52 are along the inner surface side of the front wall 54 and the side wall 56 of the tray 51. The trays 51 and the cover 52 are fixed to each other with the adhesive portions 66 that face the hypotenuses near the finger insertion holes 65. Moreover, the top wall 60 is formed by bending the top plate 62 inward and folding the top plates 57 and 61 together.

  When unpacking the two-piece packaging box, as shown in FIG. 10, the pushing piece 64 is pushed in and the rear portion of the top wall 60 is pulled upward to cut the cut line 63, and then the adhesive portion 66 is moved. After peeling, the finger is put into the finger insertion hole 65, and the cover 52 is pulled out from the tray 51 vertically upward. Accordingly, the tray 51 and the cover 52 are separated with the top plate 57 of the tray 51 attached to the top plate 62 of the cover 52.

Japanese Patent No. 5458089

  However, in the two-piece packaging box as described above, when unpacking, the rear portion of the top wall 60 is pulled upward to cut the cut line 63, and then the cover 52 must be pulled out from the tray 51 vertically upward. Because one action is required, it can be annoying.

  Further, when the adhesive portion 66 is peeled off, a large force is required. If this adhesive force is weakened, there is a risk that the tray 51 will fall when the cover 52 is gripped and transported. Furthermore, when the stored article is light, if the cover 52 is pulled out vertically upward from the tray 51 in a state where the adhesive portion 66 is not sufficiently peeled off, the tray 51 is lifted together with the cover 52, and the tray 51 and the cover 52 are removed. And may not be separated.

  In addition, in the packaged state, the side wall 59 of the cover 52 does not contribute to the compressive strength, and there is a problem that the overall strength with respect to the loading load is relatively low.

  Therefore, the present invention provides a two-piece packaging box that can be easily separated regardless of the weight of the contents even when the tray and the cover are firmly fixed, and that is excellent in compressive strength in the packed state. This is the issue.

  In order to solve the above problems, the present invention provides a two-piece packaging box comprising a tray for storing contents and a cover for covering the contents. The tray includes a rear wall, a pair of side walls, and a bottom wall. The cover includes a front wall, a pair of side walls, and a top wall, and a cut piece is formed on the side wall with a side cut line facing the lower side. The side wall of the cover overlaps, the tray and the side wall of the cover are bonded to each other inside the cut piece, the top wall is connected to the upper end of the rear wall, and the tray and the top wall are passed through any area of the top wall. The upper cut line for separating the cover is inserted, the cover side wall is shaped to reach the bottom of the tray, the front lower corner of the cover side wall is point A, the front edge of the cut piece at the lower side of the side wall is point B, If the back edge of the piece is point C, The piece exists in a region sandwiched between an arc of radius AB centered on point A and an arc of radius AC, and when unpacking, the upper cut line is cut when the rear part of the top wall is pulled forward and upward. At the same time, the cover is rotated forward with the lower end of the front wall as an axis, the side cut line is cut, and the tray and the cover are separated with the cut piece stuck to the side wall of the tray.

  In the two-piece packaging box, the tray blank has a rear wall, a pair of side walls, and a front wall sequentially connected in the horizontal direction, a bottom plate connected to the lower end thereof, and a top plate connected to the upper end of the rear wall. The cover blank has a structure in which the side walls are connected to both sides of the front wall, and the top plate is continuously connected to the upper ends thereof, and the tray and the cover blank are bonded together, and the bottom surface and the top surface In the packaged state, the rear wall of the tray, the pair of side walls and the front wall are folded into a square tube shape, and the pair of side walls are folded backward from the front wall of the cover. It was made three-dimensional, and the bottom plate was overlaid to form the bottom wall, and the top plate was overlaid to form the top wall.

  In the two-piece packaging box according to the present invention, when unpacking, the upper cut line is cut and the side cut line is cut only by pulling the rear part of the top wall forward and upward. The cover rotates forward with the lower end of the front wall as an axis without interfering with the side wall, and the tray and the cover are separated, so it can be easily unpacked with one operation, and is affected by the weight of the contents Nor.

  In addition, after unpacking, the cut piece remains attached to the side wall of the tray, so the side wall of the tray and cover are strongly bonded within the cut piece area without considering the force required for peeling. It is possible to prevent the tray from falling off the cover during transportation.

  Also, since the side wall of the cover reaches the bottom of the tray in the packaged state, the cover contributes to the compressive strength and can obtain excellent strength against the loading load. You can also

  In addition, since there are only three components on the peripheral wall of the cover, the front wall and the pair of side walls, the cover can be folded flatly with the tray and cover attached together, and assembled quickly from the folded state. be able to.

The figure which shows the blank of the 2 piece packaging box which concerns on embodiment of this invention Enlarged view of the side wall of the cover The figure which shows the state which stuck the blank of the same tray and the cover The perspective view which shows a folded state same as the above The perspective view which shows a packing state same as the above The perspective view which shows a front opening state same as the above A perspective view showing the unpacking process The perspective view of a tray which shows an unpacking state same as the above The perspective view which shows the packing state of the 2 piece packaging box of patent document 1 A perspective view showing the unpacking process

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  The two-piece packaging box according to this embodiment is used both for product packaging and store display, and is composed of a blank of the tray 1 and the cover 2 shown in FIG. The tray 1 and the cover 2 are made of corrugated cardboard having a thickness of about 2 mm.

  In the blank of the tray 1, one side wall 4, the front wall 5, and the other side wall 4 are sequentially arranged side by side on one side of the rear wall 3, and the passage piece 6 is continuously arranged on the other side of the rear wall 3. ing. The rear wall 3 is a vertically long rectangle, the front wall 5 has a small size in the vertical direction, and is shaped so that the middle portion of the upper edge is curled. A hypotenuse that decreases toward the 5 side is provided.

  A bottom plate 7 having an oblique crease line on one side is connected to the lower ends of the rear wall 3 and the front wall 5, and a bottom plate 8 is connected to the lower ends of the pair of side walls 4. A top plate 9 which is a part of a ceiling wall 31 described later is connected to the upper end of the rear wall 3.

  At the center of the upper end of the rear wall 3, a pushing piece 10 is formed with a perforated cut line from the boundary with the top plate 9, and both ends of the boundary between the rear wall 3 and the top plate 9 are formed from both ends of the pushing piece 10. A zipper-type upper cut line 11 in which a bowl-shaped cut is intermittent is formed. A reinforcing piece 12 is provided on the upper side of the side wall 4 via a score line.

  In the blank of the cover 2, side walls 22 are continuously provided on both sides of the front wall 21, and the front wall 21 and the side wall 22 are each a rectangle having the same height as the rear wall 3 of the tray 1. Top plates 23 and 24 are connected to the upper edges of the front wall 21 and the side wall 22, respectively.

  On the side wall 22, a zipper-shaped side cut line 25 is formed in a mountain shape, and a cut piece 26 facing the lower side is formed. Here, as shown in FIG. 2, when the front lower corner of the side wall 22 is a point A, the front end of the cut piece 26 at the lower side of the side wall 22 is a point B, and the rear end of the cut piece 26 is a point C, the side cut line The point C side portion of 25 is curved in an arc shape, the point B side portion is tilted backward toward the upper side, and the cut piece 26 is sandwiched between an arc of radius AB centering on point A and an arc of radius AC Exists in the area.

  Further, as shown in FIG. 1, at the boundary between the front wall 21 and the one side wall 22, the folded portion at the boundary between the front wall 5 and the one side wall 4 of the tray 1 is released at the time of folding. A slit 27 is inserted. In addition, the front wall 21 is formed with a window plate portion 28 surrounded by a cut line so that the product can be seen by opening the front surface at the time of exhibition. A finger insertion part 29 is formed with a score line.

  Prior to providing the user with the tray 1 and the cover 2, as shown in FIG. 3, the side wall 22 and the front wall 21 of the cover 2 on the outer surface side of the side wall 4 and the front wall 5 of the tray 1. Are laminated with their lower sides aligned, and the adhesive portion 26a inside the cut piece 26 and the adhesive portion 12a of the reinforcing piece 12 are bonded together with an adhesive.

  Then, as shown in FIG. 4, in a folded state, the passage piece 6 is attached to the inner surface of the other side wall 4, and at the same time, the bottom plates 7, 8 are folded inward, A folded portion along the crease line is attached to the outer surface of the bottom plate 8. Thereby, a 2 piece packaging box will be in a flat folded state, and can provide it to a user in the state which is not bulky.

  In order to assemble the product in such a folded state and pack the product, as shown in FIG. 5, the rear wall 3, the pair of side walls 4 and the front wall 5 of the tray 1 are folded into a square tube shape, and the front of the cover 2. A pair of side walls 22 are folded backward from the wall 21 to form a three-dimensional shape, and the bottom plates 7 and 8 are extended to a plane to form the bottom wall 30. After that, the product is stored in the box through the opening on the top surface, the top plates 9 and 23 are folded forward and backward, the reinforcing pieces 12 are folded on each other, and the pair of top plates 24 are folded inward. The top wall 31 is formed by bonding the top plates 9 and 23 together.

  When the two-piece packaging box in which products are packed in this way is transported to a retail store and the products are displayed without removing the cover 2 at the storefront, the finger insertion portion 29 is pushed in and the window plate portion 28 is pulled forward. Cut out from the wall 21 and open the front as shown in FIG. In this front open state, a plurality of two-piece packaging boxes can be stacked and displayed.

  Further, when the display is displayed with the cover 2 removed from the tray 1, as shown in FIG. 7, when the pushing piece 10 is pushed in and the rear part of the top wall 31 is pulled forward and upward, the upper cut line 11 is cut. The cover 2 rotates forward about the lower end of the front wall 21, the side cut line 25 is cut, and the cut piece 26 is attached to the side wall 4 of the tray 1. To separate.

  As a result, the cover 2 can be removed, and the product can be exposed from the tray 1 and displayed in an open state from the top to the front as shown in FIG.

  In the two-piece packaging box as described above, when unpacking, the upper cut line 11 is cut and the side cut line 25 is cut only by pulling the rear part of the top wall 31 forward and upward. 26 and the side wall 22 of the cover 2 do not interfere with each other, and the cover 2 rotates forward about the lower end of the front wall 21 so that the tray 1 and the cover 2 are separated, so that it can be easily unpacked with one operation. Since the cover 2 is not pulled out vertically from the tray 1 but is removed by rotating it forward, the ease of unpacking is not impaired even if the product is light.

  Further, since the cut piece 26 remains attached to the side wall 4 of the tray 1 after unpacking, the side walls of the tray 1 and the cover 2 within the area of the cut piece 26 without considering the force required for peeling. 4 and 22 can be strongly bonded to each other, and the tray 1 can be prevented from dropping from the cover 2 during transportation.

  Furthermore, since the side wall 22 of the cover 2 reaches the bottom of the tray 1 in the packaged state, the cover 2 contributes to the compressive strength, and can obtain an excellent strength against the load load. It can also be transported and displayed.

  In addition, since there are only three members of the peripheral wall of the cover 2, that is, the front wall 21 and the pair of side walls 22, the influence of the dimensional difference in the circumferential direction due to the thicknesses of the tray 1 and the cover 2 are bonded together. It can be folded flat without receiving and can be quickly assembled from the folded state.

  In the above-described embodiment, the tray 1 is exemplified by the one-touch assembly type of the bottom wall 30, but the tray 1 is continuously provided around the rectangular bottom wall 30 when it is not necessary to fold it during distribution. The rear wall 3, the pair of side walls 4, and the front wall 5 may be assembled upright. Further, when the tray 1 is in such a form, the front wall 5 may be omitted, and the front surface of the tray 1 may be entirely opened when the cover 2 is removed.

  In addition, the upper cut line 11 is illustrated so as to extend toward the both ends along the boundary between the rear wall 3 and the top wall 31. However, the upper cut line 11 is formed by connecting the tray 1 and the cover 2 with cutting. As long as it can be separated, it does not have to go to both ends of the boundary between the rear wall 3 and the top wall 31.

DESCRIPTION OF SYMBOLS 1 Tray 2 Cover 3 Rear wall 4 Side wall 5 Front wall 6 Passage piece 7, 8 Bottom plate 9 Top plate 10 Pushing piece 11 Upper cut line 12 Reinforcement piece 12a Adhesive part 21 Front wall 22 Side wall 23, 24 Top plate 25 Side cut Line of sight 26 Cut piece 26a Adhesion part 27 Slit 28 Window plate part 29 Finger insertion part 30 Bottom wall 31 Top wall

Claims (2)

Consists of a tray (1) for storing contents and a cover (2) for covering the tray, the tray (1) having a rear wall (3), a pair of side walls (4) and a bottom wall (30) The cover (2) includes a front wall (21), a pair of side walls (22), and a top wall (31), and a side cut line (25) is inserted into the side wall (22) to face the lower side. (26) was formed,
In the packed state, the side wall (22) of the cover (2) overlaps the outer surface side of the side wall (4) of the tray (1), and the side wall of the tray (1) and the cover (2) ( 4, 22) are pasted together, the top wall (31) is connected to the upper end of the rear wall (3), and the tray (1) passes through any area of the rear wall (3) to the top wall (31). The upper cut line (11) for separating the cover and the cover (2) is inserted, the side wall (22) of the cover (2) is shaped to reach the bottom of the tray (1),
If the front lower corner of the side wall (22) of the cover (2) is point A, the front end of the cut piece (26) at the lower side of the side wall (22) is point B, and the rear end of the cut piece (26) is point C, The piece (26) exists in a region sandwiched between a circular arc having a radius AB and a circular arc having a radius AC centering on the point A,
When unpacking, pull the rear part of the top wall (31) forward and upward, the upper cut line (11) is cut and the cover (2) rotates forward around the lower end of the front wall (21). Two-piece packaging in which the tray (1) and cover (2) are separated with the side cut line (25) cut and the cut piece (26) attached to the side wall (4) of the tray (1) box. 2. The two-piece packaging box according to claim 1, wherein the blank of the tray (1) has a rear wall (3), a pair of side walls (4), and a front wall (5) sequentially connected in the lateral direction, The bottom plate (7, 8) is connected continuously, the top plate (9) is connected to the upper end of the rear wall (3), and the blank of the cover (2) has side walls on both sides of the front wall (21). (22) is connected, and the top plate (23, 24) is connected to the upper end of these,
The tray (1) and cover (2) blanks are pasted together and can be folded flat with the bottom and top surfaces open.
In the packed state, the rear wall (3) of the tray (1), the pair of side walls (4), and the front wall (5) are bent into a square tube shape, and the pair of side walls from the front wall (21) of the cover (2). (22) is folded backwards to form a three-dimensional shape, the bottom plate (7, 8) is overlaid to form the bottom wall (30), and the top plate (9, 23, 24) is overlaid to form the top wall (31) The two-piece packaging box according to claim 1, wherein:

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