Blank sheet, box before box-making formed by using blank sheet, packaging box and manufacturing method of box before box-making

Abstract

To provide a box before box-making in which a handle can be formed at a back plate of a tray member, a packaging box, and a blank sheet capable of forming them.SOLUTION: A box before box-making comprises a plurality of bottom plate flaps 11, 12, etc. forming a bottom surface plate, and an inner front plate 5, an inner back plate 7, an inner right side plate 6 and an inner left side plate 4 capable of rising from each end edge of the plurality of bottom plate flaps 11, 12, etc., and includes a tray member 2 capable of storing and displaying a commodity or the like. A folded-back plate 20 adhered to an inner surface of the inner back plate 7 is connected to an upper end edge of the inner back plate 7. At least two slits extending in a vertical direction at box-making are formed in the inner back plate 7 connected to the folded-back plate 20. A handle-forming part capable of forming a handle 25 by separating the part between the at least two slits from a wall part of both outer sides is formed over the folded-back plate 20.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to a blank sheet, a box before case-making formed using this blank sheet, a packaging box, and a method for manufacturing a box before case-making.

Background Art

[0002] A tray member capable of containing and displaying goods and the like has been widely developed. The tray member often has a lid member that covers it from above, and the upper part is open.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The upper end of the tray member is open, and it does not have a flap or the like at the upper edge and cannot create a handle. Since there was no tray member with a handle, it was difficult to grip the tray member. Also, it was not easy to form a tray member with a handle integrally with the lid member. Therefore, the present invention provides a blank sheet capable of forming a handle on the back plate or the front plate of the tray member, a box before case-making formed using this blank sheet, a packaging box, and a method for manufacturing a box before case-making.

Means for Solving the Problems

[0005] The pre-box for case-making of the present invention includes a plurality of bottom plate flaps forming a bottom plate, and an inner front plate, an inner back plate, an inner right side plate, and an inner left side plate that can rise from the respective edges of the plurality of bottom plate flaps, and has a tray member capable of accommodating and displaying products and the like. At the upper edge of the inner back plate, a folded-back plate adhered to the inner surface of the inner back plate is continuously provided. At least two slits extending in the vertical direction during case-making are formed in the inner back plate to which the folded-back plate is continuously provided. A handle forming portion capable of forming a handle by separating the space between the at least two slits from the wall portions on both outer sides thereof is formed across the folded-back plate. According to this configuration, a handle forming portion can be provided in the tray member.

[0006] At least one of the outer sides of both sides of the handle forming portion of the pre-box for case-making of the present invention is provided with a notch or a notch forming portion, and the folded-back plate covers the handle forming portion while avoiding the notch or the notch forming portion. According to this configuration, the rigidity of the inner back plate provided with the handle is increased.

[0007] The pre-box for case-making of the present invention includes an outer front plate, an outer back plate, an outer right side plate, and an outer left side plate that can form a covering cylinder for each of the inner front plate, the inner back plate, the inner right side plate, and the inner left side plate, and a lid member including a top plate flap for closing the upper end opening of the cylinder during case-making. A separation portion capable of forming an opening by separating a part of the side plate surrounded by a plurality of slits is provided on either one or both of the inner right side plate and the inner left side plate. An opening window portion capable of opening is formed at a location of the outer right side plate and the outer left side plate facing the separation portion, and the separation portion and the opening window portion facing the separation portion are adhered. According to this configuration, since it has a lid member, both packaging of products and the like and display of products can be performed.

[0008] The blank sheet of the present invention forms any one of the above pre-boxes for case-making. The packaging box of the present invention is formed by any one of the above pre-boxes for case-making.

[0009] The manufacturing method of the pre-box for manufacturing a case of the present invention is as follows: It includes a plurality of bottom plate flaps for forming a bottom plate, and an inner front plate, an inner back plate, an inner right side plate, and an inner left side plate that can rise from the respective edges of the plurality of bottom plate flaps. A folded-back plate that is adhered to the inner surface of the inner back plate is continuously provided at the upper edge of the inner back plate. At least two slits extending in the vertical direction during case manufacturing are formed in the inner back plate. A handle forming portion capable of forming a handle by separating the space between the at least two slits from the wall portions on both outer sides thereof is formed across the folded-back plate. A blank sheet for forming a tray member capable of accommodating and displaying products, etc., is provided with separation portions on both the inner right side plate and the inner left side plate, which are surrounded by a plurality of slits and can form an opening by separating a part of the side plate. An outer front plate, an outer back plate, an outer right side plate, and an outer left side plate that can be formed into a cylindrical body covering the inner front plate, the inner back plate, the inner right side plate, and the inner left side plate respectively, and a top plate flap for closing the upper end opening of the cylindrical body during case manufacturing are provided. A lid member having an opening window portion that can be opened at a position of the outer right side plate and the outer left side plate facing the separation portion is formed using a blank sheet. The outer surface of the blank sheet for forming the tray member is overlapped with the inner surface of the blank sheet for forming the lid member, and The inner front plate, the inner back plate, the inner right side plate, and the inner left side plate are aligned so as to correspond to the outer front plate, the outer back plate, the outer right side plate, and the outer left side plate respectively, and the separation portion and the opening window portion are adhered. The folded-back plate is folded together with the top plate flap overlapping it, and the folded-back plate is adhered to the inner back plate. The top plate flap is unfolded by releasing the fold. The bottom plate flaps are folded and an adhesive is applied to form a one-touch bottom. After overlapping both the inner left panel and the outer left panel on a part of the inner front panel and the inner right panel, overlap both the inner back panel and the outer back panel on another part of the inner right panel, and connect the inner left panel and the inner back panel through a joint margin provided on the inner left panel, and connect the outer back panel and the outer left panel through a joint margin provided on the outer back panel. According to this method, it is possible to form a pre-box for box making in a state where the blank sheet of the tray member having the handle forming portion and the blank sheet of the lid member are folded simultaneously and individually.

Advantages of the Invention

[0010] The present invention can form a handle on the inner back panel of the tray member and has the effect of being able to easily grip the tray member.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Mode for Carrying Out the Invention

[0012] Hereinafter, with reference to the drawings, an embodiment of a blank sheet, a box before box-making, and a packing box of the present invention will be described. Note that 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 this embodiment, each part may be referred to as upper, lower, horizontal direction, side, etc. Unless otherwise specified, these indicate the relative positional relationship of each part when viewing the blank sheet or the packing box from a specific direction shown in the specification or the drawings with the bottom plate as the lower side. Therefore, these do not necessarily define the orientation of the packing box, etc. Also, the front and the front indicate the orientation when the front plate of the box before box-making and the packing box of the present invention is the front, and the rear and the rear indicate the orientation when the back plate is the rear.

[0013] As shown in FIG. 1, a packing box 1 according to an embodiment of the present invention includes a tray member 2 for storing an object therein and a lid member 3 for closing the tray member 2.

[0014] The tray member 2 has an inner left side plate 4, an inner front plate 5, an inner right side plate 6, an inner back plate 7 which become the lower cylindrical body 10 during box-making, and bottom plate flaps 11 to 14 for closing the bottom when forming the cylindrical body 10. In this embodiment, the tray member 2 adopts a so-called one-touch bottom configuration.

[0015] The lid member 3 includes an outer left side plate 31, an outer front plate 32, an outer right side plate 33, an outer back plate 34 which form the lid-side cylindrical body 30 during box-making, and top plate flaps 35 - 38 for closing the upper part when forming the cylindrical body 30. Hereinafter, the tray member 2 and the lid member 3 will be described in detail.

[0016] Figure 2 is a plan view of the blank sheet 2x of the tray member 2 as viewed from the outer surface side during the manufacturing of the case. The blank sheet 2x is formed by punching out a single sheet made of rigid paper or synthetic resin and providing slits and break lines. As shown in FIG. 2, the blank sheet 2x of the tray member 2 mainly includes an inner left side plate 4, an inner front plate 5, an inner right side plate 6, an inner back plate 7, and first to fourth bottom plate flaps 11 to 14 continuously provided at the lower end edges 4b to 7b of each of them.

[0017] In FIG. 2, the inner left side plate 4, the inner front plate 5, the inner right side plate 6, and the inner back plate 7 are continuously provided in this order from the left, and are continuously provided in four in one direction via side edges b1 to b3 that are bending lines formed between adjacent plate surfaces.

[0018] In the present embodiment, the inner left side plate 4 has a lateral support portion 15 formed in a substantially L shape, and a separation portion 16 formed so as to protrude upward from a horizontally extending portion of the lateral support portion 15.

[0019] The lateral support portion 15 is surrounded by an upper end edge 4a having an upper stage line 4h extending substantially horizontally, curving and then vertically extending toward the lower end edge side, and then again extending substantially horizontally, a side edge b1, a lower end edge 4b, and a side edge b4 parallel to the side edge b1.

[0020] The separation portion 16 protrudes from the lower stage line 4j. In the present embodiment, it is provided at a position adjacent to a vertical edge 4k extending from the upper stage line 4h toward the lower end edge 4b. A part of the lower stage line 4j where the separation portion 16 is extended is formed by a perforation that is slightly curved upward.

[0021] The shape of the separation portion 16 is not particularly limited, but in the present embodiment, it is formed in a substantially rectangular shape with rounded corners at both upper corners. A bonding margin 8 for bonding to the end portion of the inner back plate 7 is provided on the side edge b4 of the inner left side plate 4. The joint generation 8 is formed in a substantially trapezoidal shape where the upper edge 8a and the lower edge 8b taper toward the side edge 8e.

[0022] The inner front panel 5 is formed in a substantially rectangular shape by a lower edge 5b extending on the extension line of the lower edge 4b of the inner left panel 4, an upper edge 5a extending on the extension line of the lower line 4j, and side edges b1, b2.

[0023] The inner right panel 6 is formed in a shape symmetrical to the inner left panel 4 with respect to the left and right.

[0024] The inner back panel 7 is formed in a rectangular shape surrounded by a lower edge 7b extending on the extension line of the lower edge 6b of the inner right panel 6, an upper edge 7a extending on the extension line of the upper line 6h, side edges b3, and a side edge 7e.

[0025] A folding plate 20 is continuously provided on the upper edge 7a of the inner back panel 7. The folding plate 20 is formed in a rectangular shape that is narrower than the width dimension of the inner back panel 7 (that is, the dimension between the side edges b3 and 7e).

[0026] Specifically, the width of the folding plate 20 is provided between a position slightly inward from the side edge b3 between the inner right panel 6 and a position leaving a width W2 slightly larger than the width dimension W1 of the joint generation 8 from the side edge 7e.

[0027] The extension dimension L2 of the folding plate 20 in the vertical direction from the upper edge 7a is formed to be equal to or less than the dimension L3 to a position that does not reach the notches 25k, 25k on both sides of the handle 25 described later from the upper edge 7a (L2 is equal to or less than L3). As a result, the folding plate 20 can be folded at the upper edge 7a without interfering with the joint generation 8 and without covering the notch 25k.

[0028] At a substantially central portion in the horizontal direction of the inner back panel 7, two slits S having breakable joints extending to the folding plate 20 are formed at a predetermined interval, and the handle 25 is formed to be able to be raised. The slits S, S extend parallel to each other from the lower end edge 7b toward the upper end edge 7a with a predetermined interval therebetween. They curve toward each other and become narrower while approaching each other, then extend with a constant width, and then curve again and become wider while gradually separating from each other, and extend to the folding plate 20 with a certain width dimension. The slits S, S are formed symmetrically with respect to a line in this embodiment.

[0029] The interval between the slits S, S has a width dimension such that a person can easily grip it by hand. The handle 25 formed between these slits S, S has a plurality of bending lines formed at both longitudinal end edges 25e, 25e and at a predetermined position between the both end edges 25e, 25e, and is configured to be easily bent when pulled out.

[0030] The two slits S, S only need to be formed at a width equal to or less than the width of the slits S, S at the end on the upper end edge 7a side of the inner back plate 7 in the folding plate 20, and are preferably formed symmetrically with respect to a line (or substantially similar shape) to the shape of the slits at the end on the upper end edge 7a side of the inner back plate 7 with the upper end edge 7a as the center. Also, in this embodiment, in the folding plate 20, the slits S, S are formed to be the same as the length of the slits S, S extending parallel from the upper end edge 7a to the lower end edge 7b of the inner back plate 7 and the width between the slits S, S, and then the ends draw arcs facing opposite sides in the width direction.

[0031] If the length of the slits S, S in the folding plate 20 is too short, the bending between the two slits S, S becomes small and it becomes difficult to hold the handle 25. If it is too close to the tip edge of the folding plate 20, the connection portion with the folding plate 20 becomes small and the slits S, S may tear. Therefore, it is preferable to adjust the length in relation to the extension length of the folding plate 20 so that the pulled-up handle 25 can be appropriately gripped by a person's hand. Note that the length of the two slits S, S in the folding plate 20 can be, for example, 10 mm to 30 mm.

[0032] On both outer sides of the two slits S, S, there are formed substantially semi-circular cutouts 25k that grip the handle 25 from both sides thereof around the central portion in the extending direction of the slit S to facilitate pulling out. The cutout 25k may be formed, for example, to a size that allows an adult's fingertip to fit in. The space between the above two slits S, S constitutes a handle forming portion capable of forming a handle.

[0033] The first bottom plate flap 11 has a substantially trapezoidal base portion 40 with the lower end edge 4b of the inner left side plate 4 as the lower base and a step portion 40d formed on the gently inclined side 40c, and a linking joint portion 41 that protrudes from the base portion 40 and can be joined to and interlocked with the second bottom plate flap 12.

[0034] The base portion 40 is surrounded by the lower end edge 4b, an inclined side 40f that rises steeply from one end thereof, an upper base 40a that extends substantially parallel to the lower end edge 4b, and an inclined side 40c that gently inclines in two steps from the end of the upper base 40a to the lower end edge 4b with the step portion 40d interposed therebetween.

[0035] The lower side of the inclined side 40c serves as a folding line when the linking joint portion 41 is projected toward the second bottom plate flap 12 side and the linking joint portion 41 is overlapped on the outer surface of the base portion 40. The linking joint portion 41 of the first bottom plate flap 11 is formed so as to be able to be connected to the second bottom plate flap 12 by overlapping a part of the second bottom plate flap 12 and bonding during box manufacturing.

[0036] The second bottom plate flap 12 has the lower end edge 5b as the lower base and is formed in a substantially trapezoidal shape that is continuously provided to the inner front plate 5. The second bottom plate flap 12 has a shape that gradually narrows from the lower end edge 5b toward the tip edge.

[0037] The third bottom plate flap 13 is continuously provided to the lower end edge 6b of the inner right side plate 6 and is formed in substantially the same shape as the first bottom plate flap 11. The fourth bottom plate flap 14 is continuously provided to the lower end edge 7b of the inner back plate 7 and is formed in substantially the same shape as the second bottom plate flap 12.

[0038] As shown in Fig. 3, the lid member 3 is connected in sequence from the left by the outer left side plate 31, the outer front plate 32, the outer right side plate 33, and the outer back plate 34 in the state of a blank sheet 3x. The lid member 3 is formed such that the outer left side plate 31, the outer front plate 32, the outer right side plate 33, and the outer back plate 34 are substantially rectangular so as to completely cover the tray member 2 at a level just in contact with the outer surface of the tray member 2 during box manufacturing.

[0039] The outer left side plate 31, the outer front plate 32, the outer right side plate 33, and the outer back plate 34 are connected by connecting the outer left side plate 31 and the outer back plate 34 with a joint margin 39 described later to form the cylindrical body 30 on the lid side shown in Fig. 1.

[0040] Specifically, the outer left side plate 31 is formed with dimensions such that its width and vertical dimensions are slightly larger than the maximum values of the width and vertical dimensions (i.e., height) of the inner left side plate 4 it covers. An opening window portion 45 is formed at a position covering the separation portion 16 when covering the inner left side plate 4, at substantially the center of the outer left side plate 31 in the width direction and the vertical direction. The opening window portion 45 has a substantially rectangular main window portion 46 that substantially covers the entire separation portion 16, and a sub-window portion 47 formed adjacent to the main window portion 46.

[0041] The main window portion 46 is surrounded by a folding line 46c that is substantially parallel to the side b5 and extends in the direction between the upper and lower edges 31a, 31b, an upper side 46a and a lower side 46b that extend while curving horizontally from both ends of the folding line 46c, and a slit line 46s that extends substantially parallel to the folding line 46b between the ends of the upper side 46a and the lower side 46b.

[0042] The upper side 46a and the lower side 46b that are curved to bulge slightly toward the upper edge 31a side are formed by perforations that are moderately easy to break. The sub-window portion 47 is formed by slit lines 47s, 47s that extend perpendicularly to the slit portion 46s from near both ends of the slit portion 46s in the direction of the side edge b5, and a folding line 47c that connects the tips of the slit lines 47s, 47s.

[0043] At the upper edge 31a of the outer left panel 31, a substantially rectangular first top plate flap 35 that is the same as or slightly wider than the width dimension of the outer left panel 31 and slightly tapers toward the tip is continuously provided. The extension dimension of the first top plate flap 35 with respect to the width dimension is not particularly limited, but is formed to have a length dimension that can close half of the upper opening of the cylindrical body 30, that is, a dimension about half of the width dimension of the outer front panel 32.

[0044] The outer front panel 32 is continuously provided to the outer left panel 31 via a side b5 between the outer left panel 31. The width dimension of the outer front panel 32 is formed to be slightly larger than the width dimension of the inner front panel 5, and the vertical dimension of the outer front panel 32 is formed to be the same as the vertical dimension of the outer left panel 31 so as to cover substantially the entire inner front panel 5.

[0045] Below the side b5 between the outer left panel 31 and the outer front panel 32 is elongated and notched in the vertical direction. At the upper edge 32a of the outer front panel 32, a second top plate flap 36 that is slightly smaller than the width dimension of the outer front panel 32 and has the same extension dimension as the first top plate flap 35 is continuously provided. The outer right panel 33 is continuously provided to the outer front panel 32 in a shape that is symmetric to the outer left panel 31 about the left - right direction.

[0046] At the upper edge 33a of the outer right panel 33, a third top plate flap 37 is continuously provided. The third top plate flap 37 is formed to be substantially symmetric to the first top plate flap 35 about the left - right direction.

[0047] The outer back panel 34 is formed in substantially the same shape as the outer front panel 32 and is continuously provided to the outer right panel 33. At the upper edge 34a of the outer back panel 34, a fourth top plate flap 38 is continuously provided. The fourth top plate flap 38 is formed to be substantially the same shape as the second top plate flap 36. At the side edge 34e of the outer back panel 34, a joint margin 39 is formed. As described above, the blank sheet 3x of the lid member 3 is configured.

[0048] Next, a method of creating the pre-box 50 using the blank sheet 2x of the tray member 2 and the blank sheet 3x of the lid member 3 will be described. The blank sheet 2x of the tray member 2 can be made into the pre-box 50 that can be easily boxed by simply assembling the inner front plate 5 etc. onto the cylindrical body 10 as follows.

[0049] First, turn over the blank sheet 3x of the lid member 3 shown in Fig. 3 so that its inner surface side faces upward. Then, apply an adhesive in the region where the separation part 16 overlaps at the main window part 46 of the opening window part 45.

[0050] As shown in Fig. 4, turn the inner surface side of the blank sheet 2x of the tray member 2 upward and place it on the blank sheet 3x of the lid member 3. At this time, arrange the inner left side plate 4, the inner front plate 5, the inner right side plate 6, and the inner back plate 7 on the outer inner left side plate 31, the outer front plate 32, the outer right side plate 33, and the outer back plate 34 respectively, and align them so that the corresponding lower end edges 4b etc. and the side edges b1, b5 overlap.

[0051] Since the outer surface of the separation part 16 faces the inner surface of the main window part 46 of the opening window part 45, press on the separation part 16 to stick and integrate the blank sheet 3x of the lid member 3 and the blank sheet 2x of the tray member 2 at the separation part 16 and the main window part 46.

[0052] Next, as shown in Fig. 5, apply an adhesive as appropriate to the location where the folding plate 20 of the inner back plate 7 overlaps, fold the folding plate 20 together with the fourth top plate flap 38 at the upper end edge 7a, and stick the folding plate 20 to the inner surface side of the inner back plate 7. Then, release the folding of the fourth top plate flap 38 and spread it to return to approximately the original state away from the folding plate 20 (it may remain in a state with some folding marks).

[0053] The first to fourth bottom plate flaps 11 to 14 are each bent at their lower edges 4b to 7b and overlapped on the inner surface sides of the inner left side plate 4, the inner front plate 5, the inner right side plate 6, and the inner back plate 7. Then, the interlocking joints 41 of the first bottom plate flap 11 and the third bottom plate flap 13 are bent along the inclined line 40c and overlapped on the outer surface sides of their respective base portions 40, and an adhesive is applied to the surfaces of the interlocking joints 41.

[0054] Apply an adhesive to the outer surface of the joint margin 8 of the blank sheet 2x of the tray member 2 and the inner surface of the joint margin 39 of the blank sheet 3x of the lid member 3.

[0055] In this state, as shown in FIGS. 6 and 7, the inner left side plate 4 together with the outer left side plate 31 is bent at the side edges b1, b5 and folded onto a part of the inner front plate 5 and the inner right side plate 6. Then, as shown in FIG. 6, the joint margin 8 continuously provided at the side edge b4 of the inner left side plate 4 protrudes from the side edge 31e of the outer left side plate 31. On the other hand, the joint margin 39 continuously provided at the side edge 34e of the outer back plate 34 protrudes from the side edge 7e of the inner back plate 7. Therefore, the inner back plate 7 and the outer back plate 34 are bent at the side edge b3 and folded onto a part of the inner right side plate 6 and on the joint margin 8.

[0056] As a result, the interlocking joint 41 of the first bottom plate flap 11 and the second bottom plate flap 12 are adhered and connected, and the interlocking joint 41 of the third bottom plate flap 13 and the fourth bottom plate flap 14 are adhered and connected. Also, the end of the inner back plate 7 overlaps and adheres on the joint margin 8, and the inner left side plate 4 and the inner back plate 7 are connected to form the folded cylindrical body 10. At the same time, the joint margin 39 of the lid member 3 overlaps and adheres on the outer surface of the end of the outer left side plate 31, and the outer left side plate 31 and the outer back plate 34 are connected to form the folded cylindrical body 30.

[0057] In the above manner, as shown in FIG. 7, the flat-folded pre-packaging box 50 integrating the lid member 3 and the tray member 2 is completed.

[0058] Thus, according to the manufacturing method of the pre-box 50 of the present invention, since the blank sheet 2x of the tray member 2 and the blank sheet 3x of the lid member 3 of the present invention are used, they can be easily folded together by adhesion at the predetermined locations described above. Further, by folding the blank sheet 2x of the tray member 2 and the blank sheet 3x of the lid member 3 together, the tray member 2 and the lid member 3 can be simultaneously and individually formed into the cylindrical bodies 10 and 30 respectively. Therefore, it has the effect that the tray member 2 having the packaging box 1 and the handle forming portion 25 can be manufactured extremely efficiently.

[0059] To assemble this pre-box 50 into the packaging box 1 capable of accommodating objects, the space between the outer left side plate 31 and the outer back plate 34 is bent at a right angle, and the space between the outer front plate 32 and the outer right side plate 33 is bent at a right angle to form a rectangular cylindrical body 30 in plan view. As a result, the tray member 2 integrated with the lid member 3 is similarly assembled into a rectangular cylindrical body 10 in plan view. At the same time, the first to fourth bottom plate flaps 11 - 14 are also raised, and as shown in FIG. 8, a bottom plate for closing the lower edge side of the tray member 2 as a whole is formed. Thus, the packaging box 1 of the present invention is completed.

[0060] Next, the usage method of the packaging box 1 of the present invention will be described. When the pre-box 50 is assembled three-dimensionally, since the first to fourth top plate flaps are open, when the packaging box 1 is assembled, goods etc. are accommodated, and the top plate flaps are closed as shown in FIG. 9.

[0061] When the lid member 3 is closed with the goods accommodated, since the lid member 3 closely encloses the tray member 2 and is further adhered at the opening window portion 45 and the separation portion 16, the lid member 3 can maintain a firmly closed state without being easily detached from the tray member.

[0062] When displaying the product in the packaging box 1 containing the product at a store or the like, gently press the sub-window portion 47 of the opening window portion 45, place a finger on the end of the main window portion 46, and rotate the main window portion 46 about the folding line 46c to pull it out to the outside of the packaging box 1 and open it. As a result, the separation portion 16 is separated from each of the inner left side plate 4 and the inner right side plate 6 while being adhered to the inner surface of the opening window portion 45, and the connection between the lid member 3 and the tray member 2 is released. Therefore, the lid member 3 is pulled out from the tray member 2.

[0063] As described above, as shown in Fig. 10(a), it becomes the tray member 2 in a state where the product (not shown) is accommodated, and the product (not shown) can be displayed as it is.

[0064] By extending the two slits S, S to the folding plate 20, when the folding plate 20 is folded to the inner surface side of the inner back plate 7 as shown in Fig. 10(b), the space between the edge 25e of the handle 25 and the upper edge 7a rises from the inner back plate 7. Thus, the handle 25 can be formed by bending the space between the slits S, S in an arc shape to the outside of the inner back plate 7.

[0065] In addition, since the folding plate 20 is provided as large as possible so as not to overlap the notch 25k and the bonding margin 39, the rigidity in the vicinity where the handle 25 is formed on the inner back plate 7 is increased.

[0066] Since the handle 25 is formed on the inner back plate 7, as shown in the figure, by raising the handle 25, there is an effect that the handle 25 can be gripped to easily lift or move the tray member.

Explanation of Signs

[0067] 1 Packaging box 2 Tray member 2x Blank sheet 3 Lid member 3x Blank sheet 4 Inner left side plate 5 Inner front plate 6 Inner right side plate 7 Inner back panel 11 First bottom plate flap 12 Second bottom plate flap 13 Third bottom plate flap 14 Fourth bottom plate flap 31 Outer left side panel 32 Outer front panel 33 Outer right side panel 34 Outer back panel 35 First top plate flap 36 Second top plate flap 37 Third top plate flap 38 Fourth top plate flap 10 Cylinder 25 Handle 25k Notch 30 Cylinder 50 Pre - made box S Slit

Claims

1. A tray member having a plurality of bottom plate flaps forming a bottom plate and an inner front plate, an inner back plate, an inner right side plate, and an inner left side plate that can rise from respective edges of the plurality of bottom plate flaps, capable of accommodating and displaying goods and the like, At the upper edge of the inner back plate, a folded-back plate adhered to the inner surface of the inner back plate is continuously provided, At least two slits extending in the vertical direction during box manufacturing are formed in the inner back plate to which the folded-back plate is continuously provided, and a handle forming portion capable of forming a handle by separating the space between the at least two slits from the wall portions on both outer sides is formed across the folded-back plate. A box before box manufacturing.

2. At least one of both outer sides of the handle forming portion is provided with a notch or a notch forming portion, The folded-back plate covers the handle forming portion while avoiding the notch or the notch forming portion. The box before box manufacturing according to Claim 1.

3. An outer front plate, an outer back plate, an outer right side plate, and an outer left side plate that can form a covering cylinder for each of the inner front plate, the inner back plate, the inner right side plate, and the inner left side plate, and a lid member having a top plate flap forming a top plate capable of closing the upper opening of the cylinder during box manufacturing, A separation portion capable of forming an opening by separating a part of the side plate surrounded by a plurality of slits is provided on either one or both of the inner right side plate and the inner left side plate, An opening window portion capable of opening is formed at a location on the outer right side plate and the outer left side plate facing the separation portion, The box before box manufacturing according to Claim 1, wherein the separation portion and the opening window portion facing the separation portion are adhered.

4. A blank sheet for forming the box before box manufacturing according to any one of Claims 1 to 3.

5. A packaging box formed by the box before box manufacturing according to any one of Claims 1 to 3.

6. A blank sheet forming a tray member for accommodating and displaying goods, etc., comprising a plurality of bottom plate flaps forming a bottom panel, and an inner front panel, an inner rear panel, an inner right side panel, and an inner left side panel that can rise from respective edges of the plurality of bottom plate flaps. A folded-back plate adhered to the inner surface of the inner rear panel is continuously provided at the upper edge of the inner rear panel. At least two slits extending in the vertical direction during box manufacturing are formed in the inner rear panel. A handle forming portion capable of forming a handle by separating the space between the at least two slits from the wall portions on both outer sides thereof is formed across the folded-back plate. Separating portions capable of forming openings by cutting off a part of the side panel surrounded by a plurality of slits are provided on both the inner right side panel and the inner left side panel. Using a blank sheet forming a lid member, comprising an outer front panel, an outer rear panel, an outer right side panel, and an outer left side panel that can be formed into a cylindrical body covering the inner front panel, the inner rear panel, the inner right side panel, and the inner left side panel respectively, and a top plate flap capable of closing the upper opening of the cylindrical body during box manufacturing. Opening windows capable of being opened are formed at positions of the outer right side panel and the outer left side panel facing the separating portions. Overlaying the outer surface of the blank sheet forming the tray member on the inner surface of the blank sheet forming the lid member, Aligning the inner front panel, the inner rear panel, the inner right side panel, and the inner left side panel with the outer front panel, the outer rear panel, the outer right side panel, and the outer left side panel so that they respectively correspond, and a step of adhering the separating portion and the opening window portion. Folding the folded-back plate together with the top plate flap overlapping it, adhering the folded-back plate to the inner rear panel, and a step of unfolding the top plate flap by releasing the fold. Folding the bottom plate flaps and applying an adhesive to form a one-touch bottom. A method of manufacturing a pre-box manufacturing box, comprising the steps of: after overlapping both the inner left side panel and the outer left side panel on a part of the inner front panel and the inner right side panel, overlapping both the inner rear panel and the outer rear panel on another part of the inner right side panel, connecting the inner left side panel and the inner rear panel through a joining margin provided on the inner left side panel, and connecting the outer rear panel and the outer left side panel through a joining margin provided on the outer rear panel.

Images