JP3901861B2 - Paper pulling box - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
INDUSTRIAL APPLICABILITY The present invention is a box body (that is, a lower box) that can be folded and transported and stored in a flat shape and can be assembled as a whole by a simple operation, and an upper box (lid box) that covers the box body. ).
[0002]
[Prior art]
Conventionally, a confectionery box is composed of a box body and an upper box placed on the box body and is three-dimensional, and thus has a problem that it is bulky in the case of storage and transportation.
Therefore, the applicant of the present application previously described in Japanese Utility Model Publication No. 64-35820, provided a side wall composed of an inner wall portion and an outer wall portion that can be folded around the rectangular box bottom, and can bend adjacent outer wall portions. A paper pulling box was proposed in which triangular side bent portions were provided on both sides of the opposing inner wall portion and the inner side was joined to the outer wall portion. By using this paper raising box, the paper raising box can be folded and stored and transported in a flat shape, and when used further, the surrounding inner wall and outer wall can be raised by a simple operation. It was designed to be used as a box.
[0003]
[Problems to be solved by the invention]
However, in the paper raising box described in the above publication, in the final assembly stage, the side plate connecting pieces are sandwiched between the opposing inner wall portion and outer wall portion, and the triangular bent portions on both sides of the inner wall portion are provided. Since a pressure-sensitive adhesive was used for fixing, there was no problem while the pressure-sensitive adhesive was new, but there was a problem that when it was old, the adhesive did not work and assembly was not possible.
[0004]
Here, it is conceivable to use double-sided tape, but since the folded part to be joined is on the back side, it is troublesome to peel off the protective tape during assembly, and if the adhesive is used carelessly, the assembled paper There was a problem that the raised box was distorted.
[0005]
Further, in the paper pulling box described in the above publication, the outer wall part that is foldably connected to the periphery of the box bottom and the connecting fold line of the inner wall part that is connected to the outside thereof are one, It is good when the paper is thin, but it is difficult to bend when it is a little thicker.Furthermore, when assembling without using an adhesive, it is necessary to finally fold the bent part of the inner wall part. Since there was no gap between the inner wall and the inner wall, there was a problem that the treatment was difficult.
The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a paper pull-up box that is formed flat during transportation and storage and can be assembled without using an adhesive or the like as a main component during use. And
[0006]
[Means for Solving the Problems]
[0007]
In line with the purpose Claim 1 The paper elevating box is a paper elevating box having a rectangular box bottom 11 having four sides A to D and side walls connected to the four sides A to D via fold lines a1 to d1, respectively. There,
The opposite side walls connected to each other via the folds a1 and c1 are outer wall portions A1 and C1 which are outer walls of the box in an assembled state, and an inner wall portion A2 connected to the side walls via folds a2 and c2. , C2
Inner folds 14 connected to the side edges of the adjacent side walls via folds 12 and 13 and starting from the corners a to d of the box bottom 11 are respectively provided. Side plate connecting pieces E1 to H1 that are folded between the inner wall part A2 and between the outer wall part C1 and the inner wall part C2,
Moreover, the lateral width of the inner wall portions A2 and C2 is narrower than the sides A and C, and the cuts a4, a5 and c4, c5 are equally arranged symmetrically in the center, and the surface side is Joining portions A7 and C7 to be joined to the outer wall portions A1 and C1 are formed, respectively, and both end portions a9, a10 and c9 of the connecting portion of the outer wall portions A1 and C1 are formed on the inner wall portions A2 and C2. From c10 to the cuts a4, a5 and c4, c5, folds a13, a14 and c13, c14 that are planar in the assembled state are formed,
In addition, both side portions of the inner wall portions A2 and C2 are provided with protrusions A15, A16 and C15, C16, respectively, and at both ends of the opposite side walls connected via the fold lines b1 and d1, Provided with engaging holes B5, B6 and D5, D6 where the protrusions A15, A16 and C15, C16 are fitted and stopped at the time of assembly,
Further, from the planar state in which the other side wall is in contact with the box bottom 11, all the side walls are raised, and the protrusions A15, A16 and C15, C16 are respectively connected to the engaging holes B5, B6 and D5, It is assembled by fitting into D6.
[0008]
Claim 2 The paper raising box described in claim 1 In the paper pulling box described above, the fold lines a2 and c2 are double line fold lines.
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
[0017]
(First embodiment)
First, with reference to FIG. 1, a paper pull-up box according to a first embodiment of the present invention in an unfolded state will be described. The paper pulling box according to the present embodiment has a structure suitable for assembling by hand.
The paper raising box 10 according to the first embodiment is made of cardboard (coated ball) whose surface has a thickness of 0.3 to 1.2 mm and is covered with thin paper for makeup. A rectangular box bottom 11 provided with ~ D, outer wall parts A1 to D1 connected to the four sides A to D via folds a1 to d1, respectively, and double line folds a2 to the outer sides of the outer wall parts A1 to D1. It is mainly composed of inner wall portions A2 to D2 respectively connected through d2, and box bottom contact pieces A5, A6, C5 and C6 connected to the outside of the inner wall portions A2 and C2 through folds a3 and c3. In addition, a double side wall is formed by the outer wall portions A1 to D1 and the inner wall portions A2 to D2. Details will be described below. In addition, the broken line in a figure represents a crease | fold and the solid line other than an outline represents a cut | notch or notch | incision.
[0018]
The box bottom 11 is made of paper and has a quadrangular shape (rectangular or square) with four sides A to D constituting the bottom of the box 10.
The outer wall portions A1 to D1 are connected to the four sides A to D of the box bottom portion 11 via folds a1 to d1 having a width of 1.5 to 2.5 mm (2 mm in this embodiment), respectively. It becomes the outside wall. The outer sides of the outer wall portions A1 to D1 become inner walls of the box in an assembled state via double line folds a2 to d2 having a width of 1.5 to 2.5 mm (2 mm in this embodiment). Inner wall parts A2-D2 are connected. In addition, side plate connecting pieces E1 to H1 are connected to side ends of adjacent outer wall portions A1 to D1 through folds 12 and 13. The side plate connecting pieces E1 to H1 are respectively provided with inner folds 14 starting from the corners a to d of the box bottom 11 and in the assembled state, the side plate connecting pieces E1 to H1 are connected to the outer wall portion A1 and the inner wall portion. It is folded between A2 and between the outer wall C1 and the inner wall C2.
[0019]
The inner wall portions A2 and C2 have a rectangular shape, and are connected to the outside of the outer wall portions A1 and C1 through double line folds a2 and c2, and in addition, the cuts a4 and a5 that are equally arranged symmetrically in the left and right center portion and Box bottom contact pieces A5, A6, C5, and C6 separated by c4 and c5 are connected. Moreover, the lateral width of the inner wall portions A2 and C2 is narrower than the sides A and C, and the cuts a4, a5 and c4, c5 are further extended to the inside at the center, and the surface side is At the time of assembling, joints A7 and C7 in which an adhesive (for example, a pressure sensitive adhesive) and a double-sided tape are applied or provided are formed on the outer wall parts A1 and C1, respectively. The joint portions A7 and C7 are connected to the inner wall portions A2 and C2 via folds a17, a18 and c17 and c18, and the width of the joint portions A7 and C7 is 1/5 or less of the width of the inner wall portions A2 and C2. 1/10 or more. When this width exceeds 1/5, it becomes difficult to fold the inner wall portions A2 and C2. On the other hand, when the width is less than 1/10, a predetermined bonding force cannot be obtained. In addition, since the joint portions A7 and C7 are connected to the inner wall portions A2 and C2 through the folds a17, a18 and c17, c18, the outer wall portion provided with a gap in addition to facilitating the manufacture thereof. It can be joined to A1 and C1 without difficulty.
[0020]
In addition, the inner wall portions A2 and C2 have respective intersections a11 and a12 between the folds a3 and c3 and the cuts a4 and a5 and c4 and c5 from both ends a9, a10 and c9 and c10 of the connecting portion of the outer wall portions A1 and C1. And folds a13, a14 and c13, c14 toward c11, c12 are formed, and the folds a13, a14 and c13, c14 are flat when assembled.
Further, small rectangular projections A15, A16 and C15, C16 are respectively provided on both outer sides of the inner wall portions A2 and C2, and the projection lengths of the projections A15, A16, C15 and C16 are one of the paper thickness. About 4 times. This is because the protrusions A15, A16 and C15, C16 can be easily and reliably engaged with the engagement holes B5, B6, D5, D6 within the range of the protrusion length.
The inner wall portions B2 and D2 have a rectangular shape, and are connected to the outside of the outer wall portions B1 and D1 through double line folds b2 and d2, respectively, in the unfolded state, and the fold lines b3 and d2 on both sides of the inner wall portions B2 and D2. The substantially triangular folding pieces B3, B4 and D3, D4 are connected via d3, and the folding pieces B3, B4 and D3, D4 are in the assembled state between the outer wall portion A1 and the inner wall portion A2, and the outer wall portion. It is folded between C1 and the inner wall C2.
[0021]
Outer wall portions A1 to D1 are connected to the four sides A to D of the box bottom portion 11 via fold lines a1 to d1, and inner wall portions A2 to D2 are connected to the outer wall portions A1 to D1 via double line fold lines a2 to d2. Therefore, a gap is formed between the folded outer wall portions A1 to D1 and the inner wall portions A2 to D2.
Engagement holes B5, B6, D5, and D6 are formed at both ends of the inner wall portions B2 and D2 so that the protrusions A15, A16, C15, and C16 are fitted and stopped at the time of assembly, and the engagement holes B5, B6, and D5 are formed. , D6 is formed with cuts b9, b10 and d9, d10 from the outer both ends of the inner wall portions B2, D2 with a width of the paper thickness of the protruding portions A15, A16 and C15, C16, and the end portions are creases. Short notches b11 and b12 and d11 and d12 toward b3 and d3 are formed.
[0022]
The box bottom abutting pieces A5, A6, C5, and C6 are connected to the outside of the inner wall portions A2 and C2 via folds a3 and c3, and come into contact with the box bottom 11 at the time of assembly.
Further, box bottom contact pieces B7 and D7 are provided on the outer side of the inner wall portions B2 and D2 through fold lines b8 and d8. The widths of the box bottom contact pieces B7, D7 are substantially the same as the widths of the box bottom contact pieces A5, A6, C5, C6.
[0023]
An example of the primary assembly method in the factory of the paper pull-up box 10 having the above configuration in the unfolded state will be described with reference to FIGS.
The inner wall portions B2 and D2 on which the box bottom contact pieces B7 and D7 are provided on the outside are bent 180 degrees inward through the double line folds b2 and d2, and overlapped on the outer wall portions B1 and D1. In this case, the folding pieces B3, B4, D3, and D4 provided on both sides of the inner wall portions B2 and D2 overlap the side plate connecting pieces E1 to H1. Next, the outer wall portions B1 and D1 are bent 180 degrees inward via the fold lines b1 and d1.
[0024]
In this state, the inner wall portions A2 and C2 are bent 180 degrees inward via the double line folds a2 and c2, and the joint portions A7 and C7 are joined to the inner side of the outer wall portions A1 and C1. In this case, using the folds a17, a18, c17, and c18 so that the inner wall portions A2 and C2 and the outer wall portions A1 and C1 are parallel, the joining positions of the joining portions A7 and C7 are double-line folds a2, Set to c2. FIG. 2 shows this state. Since the paper pull-up box 10 is held in a flat shape, it is not bulky and is easy to convey.
[0025]
In addition, from the necessity of smoothly assembling the paper pull-up box 10, it is preferable that the folds a13, a14, and c13, c14 are provided with sufficient creases on the outside or folded back 180 degrees. FIG. 3 shows the paper pull-up box 10 in a state where the outer wall C1 and the inner wall C2 are opened with the outer wall B1 and D1 bent by 90 degrees for easy understanding.
[0026]
A procedure for assembling the paper pull-up box 10 folded into a flat state into a box in use will be described with reference to FIGS.
In the paper pull-up box 10 in the state of FIG. 4A, the outer wall portions B1 and D1 to be paired are gradually caused as indicated by arrows P and Q as shown in FIG. 4B and FIG. Since the side plate connecting pieces E1 to H1 are folded between the outer wall portions A1 and C1 and the inner wall portions A2 and C2, the outer wall portions A1 and C1 rise up in conjunction with each other. In this case, both side portions A17, A18, C17, and C18 of the inner wall portions A2 and C2 are formed by the diagonal folds a13, a14, c13, and c14 formed symmetrically with respect to the inner wall portions A2 and C2, as shown in FIG. It bends upward, and in this state, the outer wall portions A1 and C1 are set at a right angle to the box bottom portion 11. As a result, the side plate coupling pieces E1 to H1 and the folding pieces B3, B4, D3, and D4 are folded between the outer wall portions A1 and C1 and the inner wall portions A2 and C2 while being in contact with the outer wall portions A1 and C1. .
[0027]
Then, as shown in FIG.4 (c), it pushes up until it stands | starts up with both palms pinching | interposing outer wall part A1, C1.
Here, when the folding pieces B3, B4, D3, D4 bend at right angles to the inner wall portions B2, D2, the protrusions formed by the cuts b9, b10, d9, d10 and the short cuts b11, b12, d11, d12. The short piece also bends at the same time as the folding pieces B3, B4, D3, and D4, and the engagement holes B5, B6, D5, and D6 are formed in this portion of the inner wall portions B2 and D2. In addition, in the detailed view shown in the upper left of FIG. 6, the engagement hole D6 in a state viewed from the arrow S in a state where a part of the inner wall portion A2 is cut out is shown.
[0028]
As shown in FIG. 4 (d), with the paper pull-up box 10 substantially assembled as described above, place the pushed-up hand on the inner wall portions A2 and C2 on the front with the thumb and push it. The protrusions A15 and C16 of the bent side portions A17 and C18 are fitted into the engagement holes D6 and D5 of the inner wall portion D2.
Next, as shown in FIG. 4 (e), the remaining oppositely bent side bent portions A18 and C17 are fitted into the engaging holes B5 and B6 of the inner wall B2, and assembled. Is completed.
[0029]
Here, since the outer wall parts B1, D1 and the inner wall parts B2, D2 are bent through the fold lines b1, d1 and the double-line fold lines b2, d2, the outer wall parts B1, D1 and the inner wall parts B2, D2 and Between which the engaging holes B5, B6, D5, D6 are sufficiently deeper than the paper thickness, and the corresponding protrusions A15, A16, C15, C16 are fully inserted. It has depth. Furthermore, as shown in FIG. 5, the paper pull-up box 10 once assembled can be flattened by removing the engagement state of the protrusions A15, A16, C15, and C16.
[0030]
(Second Embodiment)
Next, a paper pulling box 20 according to a second embodiment of the present invention will be described with reference to FIGS. It should be noted that components that are basically the same as those of the paper pulling box 10 according to the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In the following description, “′” is added to the reference numerals of the paper pulling box 10 according to the embodiment.
[0031]
In this paper raising box 20, cardboard paper having a thickness of about 1.6 mm is used. The widths of the folds a1 ′ to d1 ′ are 2.5 to 4 mm (3 mm in this embodiment), and the widths of the double line folds a2 ′ to d2 ′ are 5 to 8 mm (6 mm in this embodiment). It has become. As a result, a sufficient gap is formed between the inner wall portions B2 and D2 and the outer wall portions B1 and D1 to form engagement holes B5, B6, D5, and D6 into which the protruding portions A15, A16, C15, and C16 can be sufficiently fitted. it can.
Further, in the paper pulling box 20 according to the second embodiment, the box bottom contact pieces B7 and D7 provided on the outer side of the inner walls B2 and D2 are omitted, but can be provided freely. . In this way, it is possible to provide a paper raising box that can be easily assembled into a box when it is used by using a corrugated paper having a relatively large thickness and is flat even when assembled in a factory.
[0032]
(Third embodiment)
Next, a paper raising box 30 according to a third embodiment of the present invention will be described with reference to FIGS.
Unlike the paper pulling boxes 10 and 20 according to the first and second embodiments described above, the paper pulling box 30 according to the present embodiment is unfolded using a box automatic assembly device (not shown). The paper pull-up box 30 is configured to be assembled in a folded state in a flat shape. In the present embodiment, the paper pulling box 30 is manufactured using thick cardboard paper.
[0033]
In the developed view of FIG. 9, outer sides A21 to D21 which are outer walls of the box in the assembled state are connected to four sides A20 to D20 of the rectangular box bottom 21 via folds a21 to d21.
Inner wall portions A22 to D22, which are inner walls of the box in the assembled state, are connected to the outer sides of the outer wall portions A21 to D21 through double line folds a22 to d22, respectively.
The side ends of the adjacent outer wall portions A21 to D21 are connected through side plate connecting pieces E2 to H2 having folds 22 and 23, and corner portions a20 to d20 of the box bottom portion 21 are connected to the central portions of the side plate connecting pieces E2 to H2. An inner fold line 24, which has a base end, is provided. In the assembled state of the box, the side plate connecting pieces E2 to H2 are folded between the outer wall portion A21 and the inner wall portion A22 and between the outer wall portion C21 and the inner wall portion C22.
[0034]
Box bottom contact pieces A24, A25 and C24, C25 are further connected to the outside of the inner wall portions A22, C22 via folds a23, c23, and these box bottom contact pieces A24, A25 and C24, C25 are connected to the center portion. Are separated by cuts a24, a25 and c24, c25 that are equally arranged symmetrically.
Folding pieces B23, B24 and D23, D24 are connected to both sides of the inner wall portions B22, D22 via folds b23, b24 and d23, d24, respectively. These folding pieces B23, B24 and D23, D24 are In the assembled state, it is folded between the outer wall portion A21 and the inner wall portion A22 and between the outer wall portion C21 and the inner wall portion C22.
Cuts b25, b26 and d25, d26 are provided symmetrically at the center of the inner wall parts B22, D22, and joints B25, D25 are formed between the cuts b25, b26 and between d25, d26, respectively. .
[0035]
The widths of the inner wall portions A22, C22 are narrower than the sides A20, C20, and the incisions a24, a25 and c24, c25 are further extended to the inside at the center, and on the surface side of the tip portion, Joining portions A26 and C26 to be joined to the periphery of the box bottom portion 21 are formed.
The inner wall portions A22 and C22 are respectively connected to the intersection points a28, a29 and c28 of the folds a23 and c23 and the cuts a24, a25 and c24 and c25 from both ends a26, a27 and c26 and c27 of the connecting portion of the outer wall portions A21 and C21. , C29, and folds a30, a31 and c30, c31 which are planar in the assembled state are formed.
Protruding portions A27, A28 and C27, C28 are connected to both side portions of the inner wall portions A22, C22 and the box bottom contact pieces A24, A25, C24, C25, respectively, while at both ends of the inner wall portions B22, D22, respectively. Hook holes B26, B27 and D26, D27 are provided in which the protrusions A27, A28 and C27, C28 are fitted and stopped when the box is assembled.
[0036]
In the above-described configuration, in the present embodiment, the joint portions B25 and D25 are also formed at the central portions of the inner wall portions B22 and D22, and the joint portions B25 and D25 are joined or bonded to the lower inner surfaces of the outer wall portions B21 and D21. It is characterized by that.
That is, as will be described later, when the paper pulling box 30 is assembled using the box automatic assembly apparatus, the inner wall portions B22 and D22 are folded inward via the double line folds b22 and d22 using a folding machine. Thus, when proceeding to the next step, the inner wall portions B22 and D22 bent with the repulsive force possessed by the paper are to be returned to the original state. However, in the present embodiment, the joint portions B25 and D25 are also formed in the central portions of the inner wall portions B22 and D22, and the inner wall portions B22 and D22 are strongly joined to the outer wall portions B21 and D21 by the joint portions B25 and D25. Therefore, there is no such concern and the process can proceed smoothly.
[0037]
Joining portions A26 and C26 are formed at the tip of the portion formed between the cuts a24, a25 and c24, c25 in the central portion of the inner wall portions A22, C22, and the joining portions A26, C26 have a sufficient width. Moreover, it protrudes from the outer periphery of box bottom contact piece A24, A25 and C24, C25, and has sufficient area. Therefore, a sufficient bonding force can be secured by bonding the bonding portions A26 and C26 to the peripheral portion of the box bottom portion 21.
[0038]
As shown in FIG. 9, knobs A29, A30 and C29, C30 are attached to the tips of the box bottom contact pieces A24, A25 and C24, C25, respectively. As will be described later, the paper pulling box 30 that has become unnecessary after use can be easily folded again into a flat plate shape by the knobs A29, A30 and C29, C30. It can be stored in a form for reuse, or it can be disposed of together with newspaper as a recycled resource.
[0039]
In the first embodiment, the folding pieces B3, B4, D3, and D4 are 45 ° right-angled triangles. Therefore, when assembling the paper pull-up box 30 from the unfolded state into a flat plate shape (primary assembly), when folding the folding pieces B3, B4, D3, and D4 up to 45 ° for some of the paper pull-up boxes 30 One side of them hits the outer wall portions A21 and C21 at a parallel right angle, and there is a possibility that the folding becomes impossible.
Therefore, in this embodiment, as shown in FIG. 9, one side of the folding pieces B23, B24, D23, and D24 is formed in an arc shape so that it can be folded without resistance.
[0040]
Further, as shown in FIG. 9, the protruding portions A27, A28 and C27, C28 are connected not only to the inner wall portions A22, C22 but also to both side portions of the box bottom contact pieces A24, A25, C24, C25. The protrusions A27, A28 and C27, C28 are configured to be engageable by being fitted into the engagement holes B26, B27 and D26, D27 when the box is assembled.
Accordingly, the engagement after the engagement of the engagement holes B26, B27 and D26, D27 can be made more reliable.
[0041]
Next, an example of a primary assembly method in the factory of the paper pull-up box 30 having the configuration shown in FIGS. 9 and 10A in the unfolded state will be described with reference to FIG.
As shown in FIG. 10 (b), the inner wall portions B22 and D22 are bent 180 degrees inward through double-line folds b22 and d22, respectively, using a folding machine (not shown) to form outer wall portions B21 and D21. At the same time, the joint portions B25 and D25 are bonded to the inner surfaces of the outer wall portions B21 and D21. In this case, the folding pieces B23, B24, D23, and D24 provided on both sides of the inner wall portions B22 and D22 overlap the side plate connecting pieces E2 to H2.
[0042]
Thereafter, as shown in FIG. 10C, a double side wall composed of the outer wall portions B21, D21 and the inner wall portions B22, D22 is bent 180 ° inward through the folds b21, d21 using a folding machine (not shown).
While maintaining this state, as shown in FIG. 10 (d), using a folding machine (not shown), the inner wall portions A22 and C22 are bent 180 degrees inward through the double-line folds a22 and c22, and the joint portion is obtained. A26 and C27 are joined to the periphery of the box bottom 21.
[0043]
Further, the paper raising box 30 folded in a flat shape is assembled into a box in use (secondary assembly) in the same manner as the paper raising box 10 according to the first embodiment. FIG. 11 shows the paper pull-up box 30 after assembly.
[0044]
FIG. 12 shows a procedure for returning the paper pull-up box 30 assembled in the use state to the flat folded state.
Briefly describing this procedure, as shown in FIG. 12 (a), the knobs A29, A30, C29, and C30 are picked and the protrusions A27, A28 and C27, C28 are engaged with the engaging holes B26, B27, and D26, By pulling out from D27, the engagement can be easily released.
Next, as shown in FIG. 12 (b), the double side wall composed of the outer wall portions B21, D21 and the inner wall portions B22, D22 is bent 90 ° inward via the folds b21, d21, and then the outer wall portions A21, C21. And the double side wall which consists of inner wall part C22 and C22 is bend | folded 90 degree | times outside via the crease | folds a21 and c21.
Thereafter, as shown in FIG. 12 (c), the double side wall composed of the outer wall portions A21 and C21 and the inner wall portions C22 and C22 is pressed from above to be stored and discarded as shown in FIG. 12 (d). Use convenient and compact form.
[0045]
(Fourth embodiment)
Next, a paper pulling box 40 according to a fourth embodiment of the present invention will be described with reference to FIG.
The paper raising box 40 according to the present embodiment has substantially the same configuration as the paper raising box 30 according to the third embodiment described above except for the following configuration. Similarly to the paper raising box 30, the unfolded paper raising box 40 can be assembled into a flat folded state using an unillustrated box automatic assembly apparatus. . Therefore, the same components as those of the paper raising box 30 are denoted by the same reference numerals. In the present embodiment, the paper raising box 40 is manufactured using cardboard (coated balls).
[0046]
As shown in FIG. 13, box bottom contact pieces B28 and D28 are connected to the outer sides of the inner wall portions B22 and D22 via fold lines b27 and d27. In addition, cuts b28, b29, d28, d29 extending in a direction perpendicular to the folds b27, d27 are provided on both sides of the box bottom contact pieces B28, D28. Further, fold lines b30 to b33 and d30 to 33 are provided between the both side ends of the box bottom contact pieces B28 and D28 and the cut lines b28, b29, d28 and d29, and outside the fold lines b30 and b32 and d30 and d32. Are provided with joint portions B29, B30, D29, and D30, and these joint portions B29, B30, D29, and D30 are bonded to the peripheral portion of the box bottom portion 21.
The box bottom abutment pieces 28 and D28 can reinforce the periphery of the box bottom portion 21 and can improve the appearance of the connection between the inner wall portions A22 to D22 and the box bottom portion 21.
[0047]
【The invention's effect】
Claim 1, 2 The described paper raising box does not use an adhesive in the final assembly stage, and the protrusions A15, A16 and C15, C16 provided on both side portions of the inner wall portions A2, C2 are creased b1. , D1 through the engagement holes B5, B6 and D5, D6 formed at both ends of the side walls connected through d1, respectively, the assembly is very simple.
Furthermore, it is difficult with the conventional paper elevating box, and once assembled, the paper elevating box can be further simplified to the original state. The box can be reused.
[0048]
In particular, the claims 2 In the paper raising box described, the bending of the outer wall parts A1 and C1 connected to the periphery of the box bottom part 11 and the inner wall parts A2 and C2 respectively connected to the outer wall parts A1 and C1 is creases a1, c1 and Since they are connected via fold lines a2 and c2 which are double line fold lines, gaps are formed between the assembled outer wall parts A1 and C1 and inner wall parts A2 and C2. As a result, depths are formed in the engagement holes B5, B6 and D5, D6, so that the protrusions A15, A16 and C15, C16 are sufficiently long, and the protrusions A15, A16 and C15, C16 are in the state of engagement. It can be improved to provide a durable paper pull-up box.
[0049]
[0050]
[0051]
[0052]
[0053]
[0054]
[0055]
[0056]
[0057]
[Brief description of the drawings]
FIG. 1 is a development view of a paper pulling box according to a first embodiment of the present invention.
FIG. 2 is a perspective view of a shipping state of the paper pull-up box.
FIG. 3 is an assembly explanatory diagram of the paper pull-up box.
FIG. 4 is an explanatory view of an assembling procedure of the paper pull-up box.
FIG. 5 is an enlarged explanatory view of a procedure for assembling the paper pull-up box.
FIG. 6 is a perspective view showing a state where the paper pull-up box is assembled.
FIG. 7 is a development view of a paper pulling box according to a second embodiment of the present invention.
FIG. 8 is an assembly explanatory view of the paper pull-up box.
FIG. 9 is a development view of a paper pulling box according to a third embodiment of the present invention.
FIG. 10 is an explanatory diagram of an assembly procedure of the paper pull-up box.
FIG. 11 is an explanatory diagram of the assembled state of the paper pull-up box.
FIG. 12 is an explanatory diagram of a folding procedure of the paper pull-up box.
FIG. 13 is a development view of a paper pulling box according to a fourth embodiment of the present invention.
[Explanation of symbols]
10: paper raising box, 11: box bottom, 12: fold, 13: fold, 14: inner fold, 20: paper raising box, 21: box bottom, 22: fold, 23: fold, 24: inside Crease, 30: paper elevating box, 40: paper elevating box, A to D: sides, A1 to D1: outer wall, A2 to D2: inner wall, A5, A6: box bottom contact piece, A7: bonding Part, A15, A16: projecting part, A17, A18: side part, A20: side, A21: outer wall part, A22: inner wall part, A24: box bottom contact piece, A25: box bottom contact piece, A26: joint part, A27 : Protruding part, A28: Protruding part, A29: Picking piece, A30: Picking piece, a to d: Corner part, a1 to d1: Fold, a1 'to d1': Fold, a2 to d2: Double line fold , A2 'to d2': double line fold, a3: fold, a4, a5: cut, a9, a10: end a11, a12: intersection, a13, a14: fold, a17, a18: fold, a20: corner, a21: fold, a22: double line fold, a23: fold, a24: cut, a25: cut, a26: end A27: end, a28: intersection, a29: intersection, a30: fold, a31: fold, B3, B4: folding piece, B5, B6: hooking hole, B7: box bottom abutting piece, B20: side, B21: outer wall Part, B22: Inner wall part, B23: Folding piece, B24: Folding piece, B25: Joining part, B26: Engagement hole, B27: Engagement hole, B28: Box bottom contact piece, B29: Joining part, B30: Joining part, b3 B8: crease, b9 to b12: cut, b20: corner, b21: crease, b22: double line crease, b23: crease, b24: crease, b25: cut, b26: cut, 27: fold, b28: cut, b29: cut, b30: fold, b31: fold, b32: fold, b33: fold, C5, C6: box bottom contact piece, C7: joint, C15, C16: protrusion, C17 C18: side part, C20: side, C21: outer wall part, C22: inner wall part, C24: box bottom contact piece, C25: box bottom contact piece, C26: joint part, C27: protrusion part, C28: protrusion part, C29 : Picking piece, C30: picking piece, c3: crease, c4, c5: cut, c9, c10: end, c11, c12: intersection, c13, c14: fold, c17, c18: fold, c20: corner C21: crease, c22: double line crease, c23: crease, c24: cut, c25: cut, c26: end, c27: end, c28: intersection, c29: intersection, c30: fold, c31: Fold, D3, D4: Folded piece, D5, D6: Engagement hole, D7: Box bottom contact piece, D20: Side, D21: Outer wall part, D22: Inner wall part, D23: Folded piece, D24: Folded piece, D25: Joining Part, D26: hooking hole, D27: hooking hole, D28: box bottom contact piece, D29: joint part, D30: joint part, d3, d8: crease, d9-d12: notch, d20: corner part, d21: crease, d22: double line fold, d23: fold, d24: fold, d25: cut, d26: cut, d27: fold, d28: cut, d29: cut, d30: fold, d31: fold, d32: fold, d33: fold , E1 to H1: Side plate connecting piece, E2 to H2: Side plate connecting piece

Claims (2)

A rectangular box bottom 11 having four sides A to D, and a paper raising box having side walls connected to the four sides A to D via fold lines a1 to d1, respectively.
The opposite side walls connected to each other via the folds a1 and c1 are outer wall portions A1 and C1 which are outer walls of the box in an assembled state, and an inner wall portion A2 connected to the side walls via folds a2 and c2. , C2
Inner folds 14 connected to the side edges of the adjacent side walls via folds 12 and 13 and starting from the corners a to d of the box bottom 11 are respectively provided. Side plate connecting pieces E1 to H1 that are folded between the inner wall part A2 and between the outer wall part C1 and the inner wall part C2,
Moreover, the lateral width of the inner wall portions A2 and C2 is narrower than the sides A and C, and the cuts a4, a5 and c4, c5 are equally arranged symmetrically in the center, and the surface side is Joining portions A7 and C7 to be joined to the outer wall portions A1 and C1 are formed, respectively, and both end portions a9, a10 and c9 of the connecting portion of the outer wall portions A1 and C1 are formed on the inner wall portions A2 and C2. From c10 to the cuts a4, a5 and c4, c5, folds a13, a14 and c13, c14 that are planar in the assembled state are formed,
In addition, both side portions of the inner wall portions A2 and C2 are provided with protrusions A15, A16 and C15, C16, respectively, and at both ends of the opposite side walls connected via the fold lines b1 and d1, Provided with engaging holes B5, B6 and D5, D6 where the protrusions A15, A16 and C15, C16 are fitted and stopped at the time of assembly,
Further, from the planar state in which the other side wall is in contact with the box bottom 11, all the side walls are raised, and the protrusions A15, A16 and C15, C16 are respectively connected to the engaging holes B5, B6 and D5, A paper pull-up box that is assembled by being inserted into D6. 2. The paper pulling box according to claim 1 , wherein the folds a2 and c2 are double line folds.

Images