JP2009096549A - Sectional box - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To hold and lock erected side boards with a simple composition. <P>SOLUTION: A box sheet S1 includes a top board 1, side boards 2 to 5, outer side flaps 7 to 9, first and second lock flaps 10 and 11, and side board side flaps 12 to 15. The side boards 2 to 4 are folded open and erected with respect to the top board 1. The side board side flaps 12 to 15 are overlapped on inner faces of the side boards 3 and 5. Then, the outer side flaps 7 and 9 are folded and overlapped onto the side board side flaps 13 and 14, and 15 and 12. The lock flaps 10 and 11 are inserted into cross overlapped portions 12c to 15c between the side board side flaps 12 to 15 and the side boards 3 and 5. By that insertion of the lock flaps 10 and 11, the side board side flaps 12 to 15 are fixed onto the inner faces of the side boards 3 and 5 with the outer side flaps 7 and 9 and the side boards 2 to 5 are held in an erected state with respect to the top board 1. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an assembly box that can be easily assembled.

  Boxes made from sheet-like materials composed of paper, cardboard, plastic film, composite sheets of these, etc., except for paper sticker boxes and cardboard boxes, have a place to store and transport these boxes. It is common to assemble the box when it is used so as not to take it.

  Various assembly methods such as a bottom lock method and a side wall folding method are used for assembly boxes such as various corrugated cardboard boxes such as confectionery boxes and shoe boxes and cosmetic boxes made of plastic films.

For example, Patent Document 1 describes a bottom lock type assembly box that forms a bottom portion of a box by overlapping flaps and locking the flaps. Patent Document 2 describes a side wall folding type assembly box. Patent Document 3 describes a simple assembly method for a relatively high box.
JP-A-8-169436 Utility Model Registration No. 3058875 Japanese Utility Model Publication No. 53-135238

  However, in the case of the bottom lock type assembly box, a plurality of flaps are overlapped with each other, so that there is a problem that the bottom is not flat and a gap is generated in the bottom plate. Further, in the case of the side wall folding method, there is a problem that it is difficult to use when importance is attached to the appearance because oblique folding lines enter the side plate. Further, the assembly method in Patent Document 3 has a problem that it takes time to assemble and it is difficult to assemble instantly.

  The present invention is to solve the above problems, and the main plate such as the bottom plate or the top plate has a flat structure so that the side plate does not have a crease that deteriorates the appearance quality, and is higher than the main plate. An object of the present invention is to provide an assembly box that can be easily assembled even with a box with a gap.

  In order to achieve the above object, in the present invention, a main plate, and rectangular first to third side plates that are bent via first to third main plate fold lines composed of at least three adjacent sides of the main plate; A second outer side flap that is bent with respect to a second side plate located in the center of the first to third side plates via a side plate outer side folding line that faces the second main plate folding line; The first lock flap extending from the center of the outer side facing the side plate outer fold line of the outer side flap, and the first side plate and the third side plate located on both sides of the second side plate, A first side plate side flap that is bent through a side plate side fold line intersecting with the first and third main plate fold lines, and an outer side of the first side plate side flap, and the second outer side flap is disposed on the first side plate. While overlapping the side plate side flap, Crossing overlapping portions for changing the overlapping direction of the first to third side plates, bending the first to third side plates via the main plate folding line, and standing up with respect to the main plate, While adjoining adjacent sides, the first side plate side flap is overlapped on the inner side which is the folding side of the second side plate, the second outer side flap is bent via the side plate outer side folding line, The first side plate side flap is overlapped with the first side plate side flap and at least the first lock flap interposed between the first side plate side flap and the second side plate. A first overlapping portion where the side portion overlaps at least the side edge portion of the first lock flap and a second overlapping portion where the second outer side flap overlaps the outer side portion of the first side plate side flap are formed. Then, by the first and second overlapping portions having different overlapping directions, the first side plate side flap is fixed to the inner side surface of the second side plate, and the first to third side plates are fixed to the main plate. It is characterized by maintaining a standing state.

  The main plate is rectangular, the second side plate is formed on a pair of opposite sides, the first and third side plates are formed on the other two sides, and two second plates are formed on the main plate. The side plate and the first and third side plates preferably maintain the upright state of the four side plates, thereby forming a box made up of the main plate and the four side plates surrounding it.

  The main plate has a rectangular shape, is bent at a side facing the second side plate via a fourth main plate fold line, and has the same shape as the second side plate, and the fourth main plate with respect to the fourth side plate. A lid flap that is bent through a side plate outer side folding line that faces the folding line, a second lock flap that extends from the center of the outer side of the lid flap that faces the side plate outer side folding line, and A connection holding portion for connecting and holding the two lock flaps and the second side plate, and a second side plate side flap bent at both side edges of the fourth side plate via side plate side fold lines, and the fourth side plate Bending through the main plate folding line and standing up with respect to the main plate, aligning the adjacent side sides of the first, fourth and third side plates, and making the second side plate side flap a side plate side folding line Bend through the main The first to fourth side plates are raised while the second lock flap and the second side plate are connected and held via the connection holding portion, and the opening portions of the first to fourth side plates are raised. The cover is preferably covered with a lid flap, whereby a main plate and a box made of four side plates surrounding the main plate and a lid covering the opening of the box are integrally formed.

  It is preferable that the connection holding portion is a lock flap insertion opening formed in the second side plate and into which a second lock flap is inserted, and the lock flap insertion opening is closed by the first lock flap. In this case, since the lock flap insertion opening is closed by the first lock flap, the contents are not seen, and the contents do not jump out of the lock flap insertion opening. Moreover, when inserting a 2nd lock flap, a 1st lock flap functions as an insertion guide, and insertion is performed smoothly.

  The second side plate side flap is bent via side plate side folds to both side edges of the fourth side plate and side edges of the first and third side plates adjacent to the both side edges, and corners of the main plate are formed. It is foldable by an oblique fold line as a starting point, and when the fourth side plate is bent through the main plate fold line and is raised from the main plate, it is folded by the oblique fold line, It is preferable to adhere to the side surface. In this case, both side edges of the fourth side plate are not exposed to the outside as end faces, and the appearance is not impaired. Further, since the fourth side plate and the other first and third side plates are connected via the folding line, the sheet stored in the box does not fall out of the gap.

  According to the present invention, the standing state of the first to third side plates can be maintained with respect to the main plate. Therefore, the side plate can be held upright with a simple configuration, and the box can be configured easily. Further, the box can be folded into a flat plate shape by the reverse operation, and the storage space during storage until use is reduced. Appearance quality is improved without overlapping flaps or diagonal creases on the outer surface of the main plate or side plate.

  In the first embodiment of the present invention shown in FIGS. 1 to 7, the assembly box of the present invention is used as a cover box for a whole cake (decoration cake). This cover box is used by placing a cake on a mount and covering it from above.

  FIG. 1 is a developed plan view of a box sheet made of a single piece of single-sided white chipboard, and shows a surface side that is the inside of the box. In the developed plan view of the present invention, a solid line indicates a cutting line, and a broken line indicates a fold line. The box sheet S1 includes a rectangular top plate (main plate) 1 and rectangular side plates 2, 3, and 4 extending on the four sides via first to fourth top plate folding lines 16, 17, 18, and 19. 4 and 5. The top plate 1 and the side plates 2 to 5 form a skeleton as a cover box.

  The outer side (outer side) opposite to the first to fourth top plate folding lines 16 to 19 has a rectangular first side through the first to fourth side plate outer side folding lines 21, 23, 26, and 28. First to fourth outer side flaps 6, 7, 8, and 9 are extended. These outer side flaps 6 to 9 are bent 180 ° by the side plate outer side folding folds 21, 23, 26, and 28 to reinforce the outer sides of the first to fourth side plates 2 to 5.

  Side plate side flaps 12, 13, 14, 15 are extended on both sides of the first and third side plates 2, 4 via side plate side folds 20, 22, 25, 27. Using these side plate side flaps 12 to 15 and the second and fourth outer side flaps 7 and 9, the side plates 2 to 5 are bent 90 ° from the top plate 1 and maintained in a standing state.

  The side plate side flaps 12 to 15 start from the four corners (vertices) of the top plate 1 and are oblique creases 30, 31, 32, 33 at an angle of 45 ° with respect to the side plate side folds 20, 22, 25, 27. Is formed. The side plate side flaps 12 to 15 are separated from the second and fourth side plates 3 and 5 by cutting lines 34, 35, 36 and 37 along both sides of the second and fourth side plates 3 and 5. Further, L-shaped cut lines 38, 39, 40, and 41 are provided in the middle of the folding lines 30 to 33.

  The side plate side flaps 12 to 15 are divided into movable portions 12 a to 15 a and fixed portions 12 b to 15 b by the oblique folding lines 30 to 33 and the cut lines 38 to 41. A part of the fixing portions 12b to 15b (glue margins 12d to 15d shown by hatching in FIG. 2) is glued to the second and fourth side plates 3 and 5, as will be described later. In addition, intersecting overlapping portions 12c to 15c made of notches are formed on the outer sides of the movable portions 12a to 15a so as to be positioned at the center when assembled as a cover box. As shown in FIG. 5, the cross-overlapping portions 12c to 15c are formed so that the first and second lock flaps 10 and 11 slide smoothly when assembled into a box. The width L2 is a little wider than L1.

  As shown in FIG. 1, lock flaps 10 and 11 are extended at the center of the outer sides of the second and fourth outer side flaps 7 and 9 via flap outer side folding lines 24 and 29. The width L1 of the lock flaps 10 and 11 is, for example, half the width L3 of the side plates 3 and 5 (L3 / 2), and the second and fourth side plates 3 and 3 when assembled in a box. 5 and the gap between the fixing portions 12b to 15b (see FIG. 6). The lock flaps 10 and 11 enter the gap, and the lock flap 10 and the second outer side flap 7 and the lock flap 11 and the fourth outer side flap 9 become flat. In this way, the flat state is maintained unless an operation of grasping and pulling out the lock flaps 10 and 11 from the outside is maintained, so that the lock flaps 10 and 11 are difficult to come out of the gap, and the second And the 180 degree bending state to the 2nd and 4th side plates 3 and 5 of the 4th outer edge flaps 7 and 9 is maintained, and the standing state of each side plates 2-5 is locked. In addition, when the second and fourth outer side flaps 7 and 9 are simply folded inward, the central portions of the outer side flaps 7 and 9 swell inward due to the repulsive force of the paper, and the aesthetic appearance is impaired. Although there is a disadvantage that the side plate reinforcing effect by the outer side flaps 7 and 9 cannot be obtained, these can be solved.

  Next, the preliminary assembly of this embodiment will be described. First, in the state of FIG. 1, the first and third outer side flaps 6, 8 are folded inward via the side plate outer side folding folds 21, 26, and the inner side surfaces are fixed by adhesion as shown in FIG. 2. . Further, the lock flaps 10 and 11 are folded back 180 ° inward via the flap outer fold lines 24 and 29.

  Next, in FIG. 1, the side plate side flaps 12 to 15 are folded back 180 ° inward via the oblique folding lines 30 to 33. Next, as shown in FIG. 2, glue is attached to the glue margins 12 d to 15 d indicated by hatching of the folded fixing portions 12 b to 15 b, and the first and third side plates 2, 4 are attached by the top plate folding lines 16, 18. Fold 180 ° inward. By this folding, the fixing portions 12b to 15b are fixed to the inner side surfaces of the second and fourth side plates 3 and 5 through the adhesive margins 12d to 15d. This fixing completes the preliminary assembly. FIG. 3 shows this state, which is a semi-finished product and is in a state before storage or before use. A semicircular cutout 10a is formed at the tip of the lock flap 10 so as not to contact the adhesive margins 12d to 15d.

  In use, when the center part of the second and fourth outer side flaps 7 and 9 is grasped with the thumb and forefinger together with the lock flaps 10 and 11 from the folded state of FIG. As shown in FIG. 4, the box is in the middle of standing. When the second and fourth side plates 3 and 5 are raised in this way, the first and third side plates 2 and 4 connected by the side flaps 12 to 15 are also raised in the same manner. When the second and fourth side plates 3 and 5 are raised at 90 ° with respect to the top plate 1, the other first and third side plates 2 and 4 are also raised at 90 ° with respect to the top plate 1.

  Thereafter, as shown in FIG. 5, when the second outer flap 7 is bent so as to push the first lock flap 10 downward, the first lock flap 10 is placed in the gap between the side flaps 13, 14 and the second side plate 3. Get in. Similarly, the second lock flap 11 enters the gap between the side flaps 12 and 15 and the fourth side plate 5. FIG. 6 shows this state, and the second lock flap 11 is pressed into the fourth side plate 5 by the movable portion 15a. The first lock flap 10 is also fixed in the same manner. Thus, the first and second lock flaps 10 and 11 and the second and fourth outer side flaps 7 and 9 are planar. Accordingly, the planar state is maintained unless an operation of grasping and pulling out the lock flaps 10 and 11 from the outside is applied. Therefore, the side flaps 12 to 15 are securely pressed by the outer side flaps 7 and 9, and the assembly box is completed.

  According to the present embodiment, from the folded box sheet S1 shown in FIG. 3, as shown in FIGS. 4 and 5, the both sides of the box sheet S1 are grasped with both hands, and the side plates 2 to 5 are erected, as they are. By pushing in the lock flaps 10 and 11, the box can be assembled and locked smoothly so that it can flow without having to change both of the gripped hands. On the other hand, the lock flaps 10 and 11 can be easily pulled out from the gap by lifting the outer side flaps 7 and 9 so as to rotate around the side plate outer side folding lines 23 and 28, and the lock is released. . In this state, the first and third side plates 2 and 4 connected via the side flaps 12 to 15 are folded inward by tilting the second and fourth side plates 3 and 5, and a flat box It can be returned to the sheet S1.

  6 and 7 are cross-sectional views showing a coupling state of the fourth outer side flap 9 having the second lock flap 11 and the fourth side flap 15, and FIG. 6 shows an X cross section in FIG. Similarly, each shows a Y cross section. In FIG. 7, it can be seen that the fourth side flap 15 is reliably pressed from the inside by the fourth outer side flap 9, and the upright state of the fourth side plate 5 is maintained. In FIG. 6, the second lock flap 11 and the fourth outer side flap 9 are substantially linear, and the second lock flap 11 is pressed by the fourth side flap 15 from the inside. It can be seen that the second lock flap 11 is prevented from coming off, the side plate 5 is maintained in the standing state, and the side plate 5 is locked in the standing state.

  FIG. 8 shows the relationship between the side flaps 13 and 14, the second side plate 3, the outer side flap 7, and the lock flap 10. In addition, in order to avoid complication of drawing, the top plate 1, the 1st side plate 2, and the 3rd side plate 3 are abbreviate | omitting illustration. (A) shows a state before insertion of the lock flap 10, and (B) shows that the first overlap area H1 and the second overlap area are inserted via the cross overlap portions 13c and 14c after the lock flap is inserted. The locked state by H2 is shown. In the first overlapping area H1, the lock flap 10 is pressed against the side edges of the side flaps 13 and 14, and in the second overlapping area H2, the outer side flap 7 integrated with the lock flap 10 is the side flaps 13, 14. Therefore, the overlapping directions of the side flaps 13 and 14 and the outer side flaps 7 and the lock flap 10 are locked by the reverse overlapping.

  9 and 10 show a second embodiment of the present invention. In this embodiment, the assembly box is used as a shoe box with a lid. The difference from the first embodiment is that the bottom plate (main plate) 51 is formed in a rectangular shape so that it can be used as a shoe box, and the outer side flaps of the first side plate 52 and the third side plate 54 are replaced with lid receiving flaps. 56, lid 58, lid side flaps 92 and 94, and lid lock flap 93 are different, and the basic configuration for supporting side plates 52 to 55 is the same as that of the first embodiment. is there.

  Specifically, in the box sheet S2 of the present invention, first to fourth side plates 52, 53, 54, and 55 are extended from a bottom plate (main plate) 51 via folding lines. Then, the side flaps 62 and 63 and the lid receiving flap 56 are provided on the first side plate 52, the outer side flaps 57 and 59 and the lock flaps 60 and 61 are provided on the second and fourth side plates 53 and 55, and the third side plate 54 is provided. A lid 58 and side flaps 64 and 65 are provided. The side flaps 62 to 65 are provided with diagonal fold lines 80 to 83 and L-shaped cut lines 88 to 91, respectively, and are divided into movable parts 62a to 65a and fixed parts 62b to 65b. A flap insertion opening 95 into which the lid lock flap 93 enters is formed in the folding line 96 of the lid receiving flap 56.

  When the folded box sheet S2 is formed, the fixing portions 62b to 65b of the side flaps 62 to 65 are glued to the side plates 53 and 55 in the same manner as in the first embodiment. The first and third side plates 52 and 54 are bent 180 ° inward to form a flat box sheet S2.

  When used as a box, the second and fourth side plates 53 and 55 are raised and the first and second lock flaps 60 and 61 are moved to the side flaps 63, 64 and 62, 65 in the same manner as in the first embodiment. And the side plates 53 and 55, the box is completed. Thereafter, the lid 58 is closed and the lid lock flap 93 is inserted into the flap insertion port 95, so that it can be used as a box with a lid.

  As described above, in the first and second embodiments, the first to third side plates of the first aspect of the invention are maintained in an upright state, and the first aspect of the present invention is applied to a pair of opposing side plates. The invention is implemented.

  In the above embodiment, in order to obtain a one-touch effect, the side flaps 12 to 15 are divided into movable parts 12a to 15a and fixed parts 12b to 15b via folding lines and cutting lines, and the fixed parts 12b to 15b. Part of the paste is glued as glue margins 12d to 15d. However, when the one-touch effect is not desired, the formation of the fixing portion and the glue may be omitted. Also in this case, the standing state of the side plates 2 to 5 is held (locked) by the side flaps 12 to 15, the second and fourth outer side flaps 7 and 9, and the first and second lock flaps 10 and 11. Can do.

  Next, third to fifth embodiments of the present invention will be described. In these 3rd-5th embodiment, it is the form used as the thin box with a lid | cover, and it can utilize as a gift case of various goods (for example, clothing, such as a shirt, foodstuffs, and other articles), and a document case. These are not the one-touch assembly as in the first and second embodiments, but can be easily deformed between a flat storage state and a box state in which assembly is easy. Moreover, the box state can be maintained without particularly using a fixing means such as glue or snap. Needless to say, gluing or snap fixing may be taken in as appropriate to double the box.

  First, a third embodiment will be described. As shown in FIG. 11, the box sheet S <b> 3 of the present embodiment has a rectangular main plate 101 that forms the bottom of the box and first to fourth main plate folding lines 121 to 124 on four sides of the main plate 101 in the developed plan view. The first to fourth side plates 102 to 105 extending through the first side plate 102 and the first side plate 102 and the third side plate 104 through the first to fourth side plate side fold lines 125 to 128, respectively. Side flaps 106 to 109, outer side flap 110, lid flap 111, holding pieces 112, 113, locking pieces 114, 115, first and second lock flaps 116, 117, and lock pieces 118 It is composed of

  The first and second side flaps 106 and 107 have first and second oblique folds at an angle of 45 ° with respect to the first and second side plate side folds 125 and 126, starting from the corners of the main plate 101. 131 and 132 are formed. The first and second side flaps 106 and 107 are divided into movable parts 106a and 107a and fixed parts 106b and 107b through the first and second oblique folding lines 131 and 132, respectively. Gluing allowances 106c and 107c indicated by hatching are provided on the back surface of the fixing portion 106b, and glue is attached to this portion, and when the first to third side plates 102 to 104 stand at 90 ° with respect to the main plate, It is glued to the inner side surface of the second side plate 103.

  In addition, the first and second side flaps 106 and 107 are obliquely cut out at the center when the outer side is assembled as a box, thereby forming cross-overlapping portions 106d and 107d. Has been.

  The other third side flap 108 of the third side plate 104 and the other fourth side flap 109 of the first side plate 102 extend to the third and first side plates 104, 102 via the side plate side folding lines 127, 128. It is formed in an L shape. The side flaps 108 and 109 are formed with diagonal fold lines 133 and 134 at a 45 ° inclination with respect to the side plate side fold lines 127 and 128 starting from the corners of the main plate 101. The third and fourth side flaps 108 and 109 are connected to the fourth side plate 105 via the side plate side fold lines 131 and 132, and are bent by 90 ° with respect to the main plate 101 to stand up. At 133, 134, it is folded in two and is in close contact with the fourth side plate 105.

  The presser piece 112 is extended on the outer sides of the first side plate 102 and the fourth side flap 109 via a side plate outer side folding line 135. Similarly, the presser piece 112 is extended to the outer sides of the third side plate 104 and the third side flap 108 via the side plate outer side folding line 136. The presser pieces 112 and 113 are folded back so as to be in close contact with the inner side surface via the side plate outer side folding lines 135 and 136. Notches 112a and 113a are formed in the presser pieces 112 and 113, and the locking pieces 114 and 115 when assembled in the box are inserted into the notches 112a and 113a, and outer flaps are formed. Hold 110 so that it does not open.

  The first lock flap 116 is extended to the center of the outer side of the outer side flap 110, and the second lock flap 117 is extended to the outer side of the lid flap 111. Further, the lock piece 118 is extended at the center of the outer side of the second lock flap 117. Reference numerals 141 to 145 denote fold lines for folding the outer side flap 110, the lid flap 111, the first and second lock flaps 116 and 117, and the lock piece 118.

  A lock piece insertion hole 119 into which the lock piece 118 is inserted is provided at a substantially central portion of the second side plate 103. The lock piece insertion hole 119 is covered from the inside by the first lock flap 116 in the assembled state of the box. For this reason, when the lock piece 118 is inserted into the lock piece insertion hole 119, the first lock flap 116 serves as a guide piece, which facilitates insertion. Moreover, since the state pressed against the second side plate 103 by the side flaps 106 and 107 is maintained, the lock piece 118 can be prevented from coming out of the lock piece insertion hole 119.

  In use, the first to third side plates 102 to 104 are erected so as to be 90 ° with respect to the main plate 101, and in this state, the adhesive margins 106c and 107c of the fixing portions 106b and 107b of the side flaps 106 and 107 are set. To the second side plate 103. Next, the second side plate 103 and the fourth side plate 105 are bent inward by 180 ° via the oblique folding lines 131 to 134, the folding lines 121 and 131, and the folding lines 123 and 132. Similarly, the outer side flap 110 and the lid flap 111 are bent 180 ° inward via the folding lines 142 and 143. Thus, as shown in FIG. 12, it can be set as the rectangular flat plate which consists of the 2nd side board 103, the main board 101, and the 3rd side board 104, and is stored in this state.

  When used as a box, in the state of FIG. 12, the first side plate 102 and the third side plate 104 are pulled up to stand at 90 ° with respect to the main plate 101. By this pulling up, the second side plate 103 also stands up. Next, the outer side flap 110 is bent inward so that the movable parts 106a and 107a in a standing state are covered with the outer side flap 110 from above. At this time, both side edges of the first lock flap 116 are pressed by the movable portions 106a and 107a of the side flaps 106 and 107 from the outside so as to be sandwiched between the second side plate 103 and the movable portions 106a and 107a. As shown in FIG. 13, the first lock flap 116 and the outer side flap 110 are substantially flat when the first lock flap 116 is completely inserted into the gap between the side flaps 106 and 107 and the second side plate 103 in this state. Therefore, the bent state of the outer side flap 110 is maintained.

  In addition, the first lock flap 116 is located inside the side flaps 106 and 107 via the intersecting and overlapping portions 106d and 107d, and they overlap (see the second overlapping area H2 indicated by hatching in FIG. 13). Since the outer side flap 110 presses the outer side part of the side flaps 106 and 107 through the overlapping parts 106d and 107d (see the first overlapping area H1 indicated by hatching in FIG. 13), The mutual overlap state between the side flap 110 and the first lock flap 116 prevents the first lock flap 116 from coming out, and this state is maintained. Furthermore, since the locking sides 114 and 115 enter the notches 112a and 113a of the presser pieces 112 and 113 on both sides, the bent state of the outer side flap 110 is maintained on both sides.

  In this way, the standing state of the first to third side plates 102 to 104 with respect to the main plate 101 is maintained. A rectangular box is constructed by closing the fourth side plate 105 after putting documents, shirts, and other objects in the region surrounded by the standing first to third side plates 102 to 104 and the main plate 101, The state in which the box is closed by the lid flap 111 is maintained by inserting the lock piece 118 into the lock piece insertion hole 119. The lock piece insertion hole 119 is covered with the first lock flap 116. When the lock piece 118 is inserted into the lock piece insertion hole 119, the lock piece 118 smoothly enters using the lock flap 116 as a guide plate. . Further, since the lock piece 118 is sandwiched between the first lock flap 116 and the second side plate 103, the state in which the box is closed with the lid is maintained without requiring any particular locking means. .

  In the third embodiment, the inventions of claims 3 and 4 are implemented, and the lid is closed with a simple configuration without using a locking member such as a separate snap or locking means for the box with the lid. State is maintained. In addition, by inserting the lock piece 118 into the lock piece insertion hole 119, instead of maintaining the locked state of the lid flap 111, the locked state can be set using another fixing means including a pair of fasteners such as snaps. May be maintained.

  In the third embodiment, as shown in FIG. 11, the side flaps 106 and 107 are fixed to the second side plate 103 with adhesive margins 106c and 107c, but this need not be glued. In this case, the oblique folding lines 131 and 132 are not necessary. Further, the fixing portions 106b and 107b partitioned by the oblique folding lines 131 and 132 may be omitted.

  Next, a fourth embodiment will be described with reference to FIG. In the fourth embodiment, the shape of the side flaps 151 and 152 on the second side plate 103 side of the first side plate 102 and the third side plate 104 is a box sheet S4 different from that of the third embodiment, and the other configurations are The same as in the third embodiment. Therefore, hereinafter, the same components as those in the third embodiment are denoted by the same reference numerals, and redundant description is omitted.

  The first and second side flaps 151 and 152 of the fourth embodiment have the side plate side fold lines 125 and 126 of the first and third side plates 102 and 104, similarly to the third and fourth side flaps 108 and 109. And extended through side plate side fold lines 153 and 154 of the second side plate 103. The oblique folding lines 155 and 156 are formed so as to be inclined at 45 ° with respect to the side plate side folding lines 125 and 126. In addition, cut lines 157 and 158 are formed in the diagonal fold lines 155 and 156 in parallel with the side plate side fold lines 153 and 154.

  The first movable parts 151a and 152a and the second movable parts 151b and 152b separated by the oblique folding lines 155 and 156 and the cut lines 157 and 158 are bent at 180 ° by the oblique folding lines 155 and 156, so that the second The movable portions 151 b and 152 b are in close contact with the second side plate 103. The width L4 from the side plate side fold lines 125, 126 of the first movable parts 151a, 152a is set so as to satisfy (L3-2 × L4) <L1. The inner edges of the first movable portions 151 a and 152 a of the first and second side flaps 151 and 152 overlap with both side edges of the first lock flap 116. In addition, the width L5 from the side plate side folding lines 153 and 154 of the second movable portions 151b and 152b is set to satisfy (L3−2 × L5)> L1, and these second movable portions 151b and 152b. The first lock flap 116 smoothly enters the space between both side edges.

  In addition, the outer side portions of the first movable portions 151a and 152a of the first and second side flaps 151 and 152 are obliquely cut out at the center portion when assembled as boxes on the outer sides. Crossing overlap portions 151c and 152c are formed. The first movable portions 151a and 152a, the second movable portions 151b and 152b, the first lock flap 116, and the outer side flap 110 are meshed with each other through the intersecting overlapping portions 151c and 152c, as in FIG. The standing state of the first to third side plates 102 to 104 is maintained by the action of the overlapping areas H <b> 1 and H <b> 2 that alternately change the overlapping direction. Moreover, in this embodiment, since the both-sides edge of each side plate 102-105 is folded by a crease, a cut surface is not exposed outside and appearance quality improves. Also in this 4th Embodiment, it can change arbitrarily between a flat box sheet state and a solid box state.

  Next, a fifth embodiment will be described with reference to FIGS. 16 and 17. In the fifth embodiment, the fixing portions 106b and 107b of the first and second side flaps 106 and 107 in the third embodiment are omitted, the shape of the outer side flap of the second side plate 103, and the first and third side plates. The shape of the presser piece and the presser piece of the outer side flap is only changed from that of the third embodiment, and other configurations are the same as those of the third embodiment. The same reference numerals are assigned and duplicate descriptions are omitted.

  In the fifth embodiment, as compared with the third embodiment, the first to third side plates 102 to 104 are raised and held (locked) in a more simple operation. For this reason, the first side flaps 161 and 162 are used in which the fixed portions 106b and 107b of the first and third side flaps 106 and 107 of the third embodiment are eliminated and only the movable portions 106a and 107a are left. Further, the outer side flap 110 and the first lock flap 116 of the third embodiment are integrated into the first lock flap 163 without using the folding line 141, and the box is placed against the cross-overlapping portions 106d and 107d. Diagonally intersecting overlapping portions 163a and 163b are formed in the first lock flap 163 that intersects when assembled. The first lock flap 163 and the first and second side flaps 161 and 162 are overlapped so that the intersecting and overlapping portions 106d and 107d and the intersecting and overlapping portions 163a and 163b intersect with each other, as shown in FIG. As shown in (B), the areas of the overlapping areas H1 and H2 increase, and the standing state of the first to third side plates 102 to 104 is reliably maintained. Moreover, the shape of the holding pieces 164 and 165 and the locking pieces 166 and 167 is changed, and the standing state is reliably held.

  In the case of storing in a flat plate shape, the first side plate 102 and the fourth side flap 109 and the third side plate 104 and the third side flap 108 are folded lines 121, 132, 123 in substantially the same manner as in the third embodiment. , 131 is bent 180 ° toward the main plate 101 to form a rectangular flat plate. At this time, the first lock flap 163 and the second lock flap 117 are bent 180 ° toward the main plate 101 via the folding lines 142 and 143.

  When used as a box, the first and third side plates 102 and 104 are raised, and the second side plate 103 is raised at 90 ° with respect to the main plate 101. At this time, the locking pieces 166 and 167 extending through the folding lines 171 and 172 at both side edges of the first lock flap 163 are bent inward by 90 ° with respect to the second side plate 103. Next, the first side flap 161 of the first side plate 102 is bent at the folding line 125 so as to be 90 ° with respect to the first side plate 102. In this folded state, as shown in FIG. 17A, the first side plate 102 is placed at 90 ° with respect to the main plate 101 while the first side flap 161 is put in the gap between the first lock flap 163 and the second side plate 103. Stand up to become. In the middle of entering the gap, the side edge of the first side flap 161 is projected outside between the intersecting overlap portion 106d and the first lock flap 163. In this state, the first side plate 102 is bent at an angle of 90 ° with respect to the main plate 101, whereby the first and second side plates 102, 103 are at an angle of 90 ° with respect to the main plate 101, as shown in FIG. Standing at. Next, the pressing piece 164 of the first side plate 102 is folded inward, and the locking piece 166 is pressed by the pressing piece 164. Thereby, the locking piece 166 is clamped between the pressing piece 164 and the first side plate 102, and the standing state of the first and second side plates 102 and 103 can be locked.

  Similarly, the third side plate 104 is connected to the second side plate 103 via the side flaps 162 so that the second and third side plates 103 and 104 are raised by 90 ° with respect to the main plate. Thus, the locking piece 167 can be pressed to maintain the standing state of the second and third side plates 103 and 104. In FIG. 17, after the third side plate 104 is first bent by 90 °, the first side plate 102 is bent by 90 ° with respect to the main plate 101.

  After this, for example, a document or the like is placed in the storage portion surrounded by the main plate 101 and the first to third side plates 102 to 104, the lid flap 111 and the second lock flap 117 are folded, and the lock piece 118 is locked. The lid can be closed by inserting it into the insertion hole 119.

  In the fourth and fifth embodiments as well, the inventions of claims 3 and 4 are implemented, and the lid is simply configured without using a locking member such as a separate snap or locking means for the box with the lid. The closed state is maintained. Moreover, it can also be easily returned to a flat plate form by canceling the locked state of the first to third side plates.

  In each of the above embodiments, the box sheets S1 to S5 are formed using corrugated cardboard. Instead, a box sheet is formed using, for example, a plastic sheet made of PP (polypropylene) or other composite sheet. May be. Further, in each of the above embodiments, it may be reinforced by a fixing means such as gluing or snapping if necessary, but from the viewpoint of reducing the number of manufacturing steps or ease of assembly, fixing by gluing or snapping is not performed. Is preferred.

  Further, a window may be formed on any one or a plurality of side plates so that the contents of the box can be seen. The shape of the window may be a rectangle, a circle, an ellipse, a polygon, a star, or other various shapes, and a transparent sheet is preferably attached to the window as necessary.

  Although the rectangular box has been described in the above embodiment, the present invention can also be implemented for a box whose main plate is made of a triangle or other polygons, and also in this case, the side plate can be easily and easily erected, In addition, the standing state can be locked and maintained.

It is an expansion | deployment top view which shows the assembly box of 1st Embodiment of this invention. It is a top view which shows the state before fixing a side flap to a side plate. It is a top view which shows the storage state which made the assembly box flat. It is a perspective view in the middle of assembling a box by raising the second and fourth side plates from the storage state. It is a perspective view which shows the state which locks by lock flap insertion. It is sectional drawing in the X cross section of FIG. It is sectional drawing in the Y cross section of FIG. It is a front view which shows the relationship between a side flap, a 2nd side plate, an outer side flap, and a lock flap, (A) shows before insertion of a lock flap, (B) inserts a lock flap, and cross-overlap part The locked state by the 1st overlap area and the 2nd overlap area is shown via. It is an expansion | deployment top view which shows the assembly box of 2nd Embodiment of this invention. It is a perspective view which shows the assembly box before closing the cover of the embodiment. It is an expansion | deployment top view which shows the assembly box of 3rd Embodiment of this invention. It is a top view which shows the storage state which made the assembly box of the same embodiment flat form. It is a perspective view which shows the principal part in the middle of the box assembly of the same embodiment. It is a perspective view which shows the assembly completion state of the embodiment. It is an expansion | deployment top view which shows the assembly box of 4th Embodiment of this invention. It is an expansion | deployment top view which shows the assembly box of 5th Embodiment of this invention. It is a perspective view which shows the principal part in the middle of the box assembly of the embodiment, (A) shows the state which has inserted the 2nd side flap from the side of the 2nd side plate, (B) is the 2nd side flap. After being fixed to the two side plates, the fixed state is shown using the locking piece and the presser piece.

Explanation of symbols

S1 to S5 Box sheet 1 Top plate 2-5 Side plate 6-9 Outer flap 10, 11 Lock flap 12-15 Side plate side flap 51 Bottom plate 52-55 Side plate 56 Lid receiving flap 57 Outer flap 58 Lid 59 Outer flap 60 , 61 Lock flap 62-65 Side flap 101 Main plate 102-105 Side plate 106-109 Side flap 110 Outer flap 111 Cover flap 116, 117 Lock flap 118 Lock piece 151, 152 Side flap 161, 162 Side flap 163 Lock flap

Claims (5)

A main plate,
A rectangular first to third side plates that are bent via first to third main plate fold lines composed of at least three adjacent sides of the main plate;
Of the first to third side plates, a second outer side flap that is bent via a side plate outer side fold line facing the second main plate fold line with respect to a second side plate located in the center,
A first lock flap extending from a central portion of the outer side facing the side plate outer fold line of the second outer side flap;
A first side plate side flap that is bent with respect to the first side plate and the third side plate located on both sides of the second side plate through side plate side folds intersecting the first and third main plate folds;
Provided on the outer side of the first side plate side flap, and the second outer side flap is overlapped with the first side plate side flap, and includes an intersecting overlapping portion for changing the overlapping direction,
The first to third side plates are bent via the main plate fold line to stand up with respect to the main plate, the adjacent side edges of the first to third side plates are matched, and the first side plate side flap is The second side plate is overlapped on the inner side which is the folding side, the second outer side flap is bent via the side plate outer side folding line, overlapped with the first side plate side flap, and the first side plate side flap At least the first lock flap is interposed between the first side plate and the second side plate, and the side side portion of the first side plate side flap overlaps at least the side edge portion of the first lock flap via the intersecting overlapping portion. The first overlapping portion and the second outer overlapping flap form a second overlapping overlapping portion that overlaps the outer peripheral portion of the first side plate side flap, and the first and second overlapping overlapping positions are different. The allowed section, the assembled box the first side plate side flaps fixed to the inner surface of the second side plate, and maintains a raised state of the first through third side plate to the main plate.   The main plate is rectangular, the second side plate is formed on a pair of opposite sides, the first and third side plates are formed on the other two sides, and two second side plates are formed on the main plate. The assembly box according to claim 1, wherein the upright state of the four side plates is maintained by the first and third side plates. The main plate has a rectangular shape, is bent at a side facing the second side plate via a fourth main plate fold line, and has the same shape as the second side plate, and the fourth main plate with respect to the fourth side plate. A lid flap that is bent through a side plate outer side folding line that faces the folding line, a second lock flap that extends from the center of the outer side of the lid flap that faces the side plate outer side folding line, and A connection holding portion for connecting and holding the two lock flaps and the second side plate, and a second side plate side flap that is bent at both side edges of the fourth side plate via side plate side fold lines,
The fourth side plate is bent through the main plate folding line and is raised with respect to the main plate, the adjacent side edges of the first, fourth and third side plates are aligned with each other, and the second side plate side flap is The first side plate to the fourth side plate are erected with respect to the main plate by bending the side plate side fold line, and the second lock flap and the second side plate are connected and held via the connection holding part, The assembly box according to claim 1, wherein the opening portion of the first to fourth side plates is covered with the lid flap.   The connection holding portion is a lock flap insertion opening formed in the second side plate and into which a second lock flap is inserted, and the lock flap insertion opening is closed by the first lock flap. The assembly box according to claim 3. The second side plate side flap is bent through side plate side folds to both side edges of the fourth side plate and side edges of the first and third side plates adjacent to the both side edges, and corners of the main plate are formed. It can be bent by the diagonal crease starting point,
4. The fourth side plate is folded by the oblique fold when the fourth side plate is bent through the main plate fold and is raised with respect to the main plate, and is in close contact with the inner surface of the fourth side plate. Or the assembly box of 4.

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