JP2015020757A - Packaging container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging container which can be produced by a simple folding process.SOLUTION: A packaging container 1 comprises: a rectangle bottom surface part 11; front, rear, left, and right wall surface parts 12, 13, 14, 15 rising from the bottom surface part 11 continuous to each of the four sides of the bottom surface part 11; an opening/closing surface part 17 continuous to the top edge of the rear wall surface part 13 and covering a top surface; an opening/closing surface part continuous to the top edge of the front wall surface part 12 and folded perpendicular to the front wall surface part 12; stay surface parts 18, 19 continuous to both side ends of the opening/closing surface part 17 and provided along the inner surfaces of left and right side wall surface parts; and flaps 16A, 16B provided along the inner surfaces of the stay surface parts 18, 19 and partially adhered to the left and right side wall surface parts 14, 15 by paste parts n2, n3 while sandwiching the stay surface parts 18, 19 between the left and right side wall surface parts 14, 15. When the opening/closing surface part 17 is rotated and opened, stopper pieces 18a, 19a at the tip of the stay surface part 18, 19 come in contact with the paste parts n2, n3.

Description

  The present invention relates to a packaging container, for example, a packaging container in which a plurality of individually confectionery items (chocolate confectionery, baked confectionery, etc.) are stored.

  The packaging box described in the cited document 1 is provided with hinge plates on both sides of the lid plate to be opened and closed. When the lid plate is rotated, the hinge plate is also rotated in conjunction with this. The stopper piece of the hinge plate is locked to the end of the auxiliary plate, and the movement of the lid plate is stopped here.

JP 2003-267355 A

  In Cited Document 1, the hinge plate 5 is sandwiched between the upper plate 6 and the side plate 2c and between the upper plate 6 and the side plate 2d. To overlap the side plate 2c (2d), the hinge plate 5, and the upper plate 6 in this order from the inside, and to position the lid 3 to which the hinge plate 5 is connected to the outermost surface, as shown in FIG. It is necessary to perform a folding process simultaneously from the two directions of the front and rear sides of the box. The folding process is performed so that the lid 3 is positioned on the outermost surface and the hinge plate 5 connected to the lid 3 is not the outermost surface (between the upper plate 6 and the side plate 2c and between the upper plate 6 and the side plate 2d). It's not easy.

  An object of the present invention is to provide a hatch open type packaging container that can be produced by a simple folding process.

  The packaging container according to the present invention includes a rectangular bottom surface, front and rear wall surfaces rising from the bottom surface continuously to each of the four sides of the bottom surface portion, and the bottom surface portion and the front and back surfaces continuously from the upper end of the rear wall surface portion. An open / close surface covering the top surface of the space surrounded by the left and right wall surfaces, an adhesive surface bonded to the inner surface of the open / close surface continuously from the upper end of the front wall, or a front wall continuous to the tip of the open / close surface An adhesive surface portion bonded to the outer surface of the portion, a stay surface portion extending along the inner surfaces of the left and right side wall surface portions, and a stay surface portion extending along the inner surfaces of the left and right side wall surface portions, and the left and right side wall surface portions along the inner surface of the stay surface portion. A flap member that is partially bonded to the left and right side wall surface portions by an adhesive member with the stay surface portion being pivotably sandwiched therebetween, and the opening / closing surface portion is configured with a fold line on the opening / closing surface portion as an axis. It is free to rotate On rotation locus of the tip of the stopper piece of the stay surface portion that rotates together with the surface portion, wherein the bonding member used in the partially adhered between the left and right sidewall portions and the flap member is positioned.

  Front, rear, left and right wall surfaces rising from the bottom surface portion are continuous with each of the four sides of the rectangular bottom surface portion, and an opening / closing surface portion is further continuous with the upper end of the rear wall surface portion of the four wall surface portions. An adhesive surface portion further continues to the upper end of the front wall surface portion or the tip of the opening / closing surface portion. When the adhesive surface portion is continuous with the upper end of the front wall surface portion, the sleeve having both sides opened can be formed by adhering the inner surface of the opening / closing surface portion to the adhesive surface portion (sacking) . When the adhesive surface portion is continuous with the tip of the opening / closing surface portion, a sleeve having both sides opened can be formed by adhering the adhesive surface portion to the outer surface of the front wall surface portion (sacking) . The contents are accommodated in the sleeve from one or both side openings of the sleeves (end load).

  The opening / closing surface portion is rotatable about a fold line on the opening / closing surface portion, and the fold line is a central axis of rotation of the opening / closing surface portion. The fold as an axis for rotating the opening / closing surface portion may be the boundary between the opening / closing surface portion and the rear wall surface portion, or may be formed on the opening / closing surface portion separately from the boundary. Needless to say, when the opening / closing surface portion is first opened, the adhesion of the adhesive surface portion described above is released (the adhesive portion is peeled off or the adhesion range is cut off). In any case, the open / close surface portion maintains a continuous state with the upper end of the rear wall surface portion.

  Stay surface portions along the inner surfaces of the left and right side wall surface portions are continuous with both ends of the rotating opening / closing surface portion. Since it is continuous with the opening / closing surface portion, the stay surface portion also rotates in conjunction with the rotation of the opening / closing surface portion.

  A flap member that is partially bonded to the left and right side wall surface portions by an adhesive member is provided along the inner surface of the stay surface portion with the stay surface portion sandwiched between the left and right side wall surface portions. That is, the stay surface portion is located in a gap between the left and right side wall surface portions of the wing and the inner surface of the wing flap member, and rotates along the gap.

  According to the present invention, the flap member is positioned in the side opening of the sleeve in a state where both sides are open, the stay surface portion connected to both ends of the opening / closing surface portion is positioned outside the flap member, and finally the bottom surface portion By bending the left and right side wall surface parts leading to the upper side of the flap member and positioning the stay surface part to be rotatable, the left and right side wall surface parts and the flap member are partially bonded by an adhesive member, A box-shaped packaging container can be assembled. A complicated folding process is not required, and it is suitable for automatic box making using end road cartoner.

  According to the present invention, the adhesive member used for partial adhesion of the left and right side wall surface portions and the flap member is positioned on the rotation locus of the stopper piece at the tip of the stay surface portion that rotates together with the opening / closing surface portion. Therefore, when the opening / closing surface portion is rotated in the opening direction, the stopper piece at the tip of the stay surface portion comes into contact with the adhesive member, and the rotation of the opening / closing surface portion stops there. The entire stay surface portion connected to the opening / closing surface portion does not jump out.

  When the adhesive surface portion is continuous with the upper end of the front wall surface portion, the adhesive surface portion can be a top surface portion that covers a part of the top surface of the space surrounded by the bottom surface portion and the front, back, left, and right wall surface portions. . In this case, the flap member partially bonded to the left and right side wall surface portions can be continuously provided on both side ends of the top surface portion.

  When the bonding surface portion is the top surface portion continuous with the upper end of the front wall surface portion, a cutting line is formed on the top surface portion, and the range of the top surface portion cut along the cutting line is bonded to the inner surface of the opening / closing surface portion. It is good to keep. When the opening / closing member is opened for the first time, a part of the top surface portion bonded to the inner surface of the opening / closing member is cut off, so that the top surface of the packaging container is greatly opened and the contents can be easily taken out.

  When the said adhesive surface part is following the front-end | tip of the said opening-and-closing surface part, the said adhesive surface part can be made into the front-end | tip piece adhere | attached on the outer surface of the said front wall surface part. In this case, the flap member partially bonded to the left and right side wall surface portions can be continuously provided on both side ends of the front wall surface portion and the rear wall surface portion.

  When the bonding surface portion is a tip piece continuous to the tip of the opening / closing surface portion, a cutting line is formed on the front wall surface portion, and the range of the front wall surface portion cut along the cutting line is bonded to the inner surface of the tip piece. It is good to leave. When the opening / closing member is opened for the first time, a part of the front wall portion bonded to the inner surface of the tip piece is cut off, so that the opening of the packaging container can be formed also in a part of the front wall portion, It becomes easy to take out the contents.

It is a perspective view of the packaging container of 1st Example of the state which closed the opening-and-closing surface part. It is a perspective view of the packaging container of 1st Example of the state which opened the opening-and-closing surface part. It is an expanded view of the packaging container of 1st Example. The assembly process of the packaging container of 1st Example is shown. The assembly process of the packaging container of 1st Example is shown. The assembly process of the packaging container of 1st Example is shown. The assembly process of the packaging container of 1st Example is shown. The right side surface of the packaging container of 1st Example is shown, and the movement of a stay surface part when an opening-and-closing surface part rotates is shown. It is a perspective view of the packaging container of 2nd Example of the state which closed the opening-and-closing surface part. It is a perspective view of the packaging container of 2nd Example of the state which opened the opening-and-closing surface part. It is an expanded view of the packaging container of 2nd Example. The assembly process of the packaging container of 2nd Example is shown. The assembly process of the packaging container of 2nd Example is shown. The assembly process of the packaging container of 2nd Example is shown. The assembly process of the packaging container of 2nd Example is shown. The right side surface of the packaging container of 2nd Example is shown, The movement of a stay surface part when an opening-and-closing surface part rotates is shown. It is an expanded view of the packaging container of 3rd Example. It is a perspective view of the packaging container of 3rd Example of the state which closed the opening-and-closing surface part. It is a perspective view of the packaging container of 3rd Example of the state which opened the opening-and-closing surface part.

(First embodiment)
1 and 2 are perspective views of the packaging container 1 of the first embodiment. FIG. 1 shows the packaging container 1 with the open / close surface portion 17 closed, and FIG. 2 shows the packaging container 1 with the open / close surface portion 17 open. Respectively. FIG. 3 is a development view of a blank (pattern) that forms the packaging container 1, and shows a surface that is an inner surface of the packaging container 1. 4 to 7 show the assembly process of the packaging container 1. The packaging container 1 is made by folding a piece of cardboard cut into the shape shown in FIG. Instead of cardboard, cardboard, plastic sheet, or a composite material thereof may be used. In the developed view of FIG. 3, the broken line indicates a fold line (fold) that is valley-folded. In order to facilitate folding, a fold line process or a crease process is performed along the broken line. Hereinafter, the assembly process of the packaging container 1 shown in FIGS. 1 and 2 will be described with reference to FIGS.

  Referring to FIG. 3, the packaging container 1 includes a rectangular bottom surface portion 11. The front wall surface portion 12 and the rear wall surface portion 13 are continuous in the opposite direction before and after the bottom surface portion 11 (lower and upper ends in FIG. 3), and left and right side wall surface portions 14 and 15 are continuously connected to the left and right ends of the bottom surface portion 11, respectively. It is extended. Flaps 12A and 12B are continuously extended in the opposite directions in the left and right ends of the front wall surface portion 12, and flaps 13A and 13B are continuously extended in the opposite directions, respectively.

  A top surface portion 16 extends continuously at the lower end of the front wall surface portion 12, and flaps 16 </ b> A and 16 </ b> B continuously extend in opposite directions on the left and right ends of the top surface portion 16. The depth of the top surface portion 16 (the length in the vertical direction in FIG. 3) is shorter than the depth of the bottom surface portion 11. An arcuate (convex) cut line (intermittent cut) K is formed in the top surface portion 16 in a direction toward the upper end thereof, and the top surface portion 16 is continuous with the front wall surface portion 12 and the flaps 16A and 16B by the cut line K. The remaining top surface portion 16a is divided into a cut top surface portion 16b cut along a cut line K as will be described later. A glue portion n1 is provided in the range of the cut top surface portion 16b of the top surface portion 16. The top surface portion 16 is used as an adhesive surface portion for bonding the top surface portion 16 (its cut top surface portion 16b) and an opening / closing surface portion 17 described below to realize body pasting (sack pasting).

  An open / close surface portion 17 extends continuously from the upper end of the rear wall surface portion 13. The depth of the opening / closing surface portion 17 (the length in the vertical direction in FIG. 3) is substantially equal to the depth of the bottom surface portion 11. Small flaps 17A and 17B extend continuously in opposite directions on the left and right ends near the rear wall surface portion 13 of the opening / closing surface portion 17, respectively. Adjacent to the upper sides of the flaps 17A and 17B, substantially fan-shaped stay surface portions 18 and 19 extend in the opposite direction continuously to the left and right ends of the opening and closing surface portion 17, respectively. The outer edges of the stay surface portions 18, 19 draw an outward arc, and their tips protrude outward. Although the details will be described later, the tip end portions 18a and 19a of the stay surface portions 18 and 19 serve as a stopper that defines the opening range (rotation angle) of the opening / closing surface portion 17 described above (hereinafter referred to as stopper pieces 18a and 19a). ).

  The opening / closing surface portion 17 extends laterally in parallel with the fold line at the boundary between the opening / closing surface portion 17 and the rear wall surface portion 13 so as to connect the boundary positions between the left and right flaps 17A, 17B of the opening / closing surface portion 17 and the stay surface portions 18, 19. A perforation or a crease M is formed (the perforation or crease M is indicated by a thick dashed line). As will be described later, a part of the opening / closing surface portion 17 (range from the tip of the opening / closing surface portion 17 to the perforation M) is rotated about the perforation M, and the opening / closing surface portion 17 is thereby opened / closed.

  In the vicinity of the front end (upper end) of the opening / closing surface portion 17, an arc-shaped cut is formed to form a locking piece 22 for easily maintaining the closed state of the opening / closing surface portion 17. Between the notch forming the locking piece 22 and the leading edge of the opening / closing surface portion 17, three folds 22 a for making the opening / closing surface portion 17 easy to grasp are formed. The range in which the three folds 22a are formed slightly protrudes outward.

  Referring to FIG. 4, first, the front wall surface portion 12 is folded at the boundary with the bottom surface portion 11. Referring to FIG. 5, the opening / closing surface portion 17 is then folded at the boundary with the rear wall surface portion 13. The cut top surface portion (outer surface) 16b and the open / close surface portion (inner surface) 17 are bonded together by the glue portion n1 provided on the cut top surface portion 16b of the top surface portion 16. Part of the stay surface portions 18 and 19 that are continuous to both ends of the opening / closing surface portion 17 overlaps the flaps 16A and 16B that are continuous to the left and right ends of the top surface portion 16 (remaining top surface portion 16a) that is folded first.

  With reference to FIG. 6, the front wall surface portion 12 and the rear wall surface portion 13 are erected substantially vertically with respect to the bottom surface portion 11. A sleeve that is open on both sides is shaped. Next, one of the left and right side surfaces, for example, the right side surface is assembled. A flap 12B continuous to the right end of the front wall surface portion 12 and a flap 13B continuous to the right end of the rear wall surface portion 13 are bent substantially at a right angle. Referring to FIG. 7, a flap 16B continuous to the right end of the top surface portion 16 (remaining top surface portion 16a) located on the lower side of the opening / closing surface portion 17, and a flap 17B and stay surface portion 19 continuing to the right end of the opening / closing surface portion 17 Bend it at a right angle. Finally, the right wall surface 15 continuous to the right end of the bottom surface portion 11 is bent upward at a substantially right angle, and both upper ends of the inner surface of the right wall surface 15 are bonded to the flaps 16B and 17B by glue portions n3 and n5. To do. The right side is closed.

  A stored item (not shown) is stored from the side of the open left side (end load). The right side that is closed first serves as a stopper for the stored items. After the stored items are put in, the packaging container 1 storing the stored items is completed by assembling the left side surface in the same manner as described above (see FIG. 1).

  In the state where the packaging container 1 is assembled, the above-described stay surface portions 18 and 19 have the left and right side wall surface portions 14 and 15 along the outer surface and the flaps 13A, 16A, 13B and 16B along the inner surface (see FIG. 7). Since the stay surface portions 18 and 19 are not glued, they can be rotated in the vertical direction of the packaging container 1.

  When the tip of the opening / closing surface portion 17 is grasped and lifted, the opening / closing surface portion 17 is bent along the perforation M. Since the cut top surface portion 16b is bonded to the inner surface of the open / close surface portion 17 by the glue portion n1, the cut top surface portion 16b is cut from the top surface portion 16 along the cut line K when the open / close surface portion 17 is first lifted. The cut top surface portion 16b remains adhered to the inner surface of the opening / closing surface portion 17 (see FIG. 2). By cutting the top surface portion 16b from the top surface portion 16, the packaging container 1 is greatly opened, and the contents can be easily taken out.

  FIG. 8 shows the right side surface of the packaging container 1 with a part of the right wall surface portion 15 omitted, and shows the movement of the stay surface portion 19 when the opening / closing surface portion 17 rotates. In FIG. 8, the stay surface portion 19 when the opening / closing surface portion 17 is opened is indicated by a solid line, and the stay surface portion 19 when the opening / closing surface portion 17 is closed is indicated by an alternate long and short dash line. Since the packaging container 1 is bilaterally symmetrical, it goes without saying that the stay surface portion 18 provided on the left side performs the same movement as the stay surface portion 19 provided on the right side.

  When the open / close surface portion 17 is closed (see alternate long and short dash line, see FIG. 1), the stay surface portion 19 connected to the open / close surface portion 17 is sandwiched between the right wall surface portion 15 and the flaps 13B and 16B. It is in. When the opening / closing surface portion 17 is closed, the stay surface portion 19 cannot be seen from the outside.

  When the opening / closing surface portion 17 is lifted (see solid line, FIG. 2), the stay surface portion 19 connected to the opening / closing surface portion 17 is also lifted together with the opening / closing surface portion 17 and gradually exposed to the outside. The opening / closing surface portion 17 and the stay surface portion 19 rotate around the perforation M.

  When the opening / closing surface portion 17 continues to rotate, the stopper piece 19a at the tip of the stay surface portion 19 hits the end portion of the glue portion n3 used for bonding the right wall surface portion 15 and the flap 16B, where the stay surface portion 19 rotates. The movement stops. The rotation of the opening / closing surface portion 17 is stopped.

  When closing the open / close surface portion 17 once opened, the closed state of the open / close surface portion 17 is easily maintained by inserting the locking piece 22 at the tip of the open / close surface portion 17 into the edge of the remaining top surface portion 16a from the lower side ( (See FIG. 2).

  As described above, the left and right side wall surface portions 14 and 15 are formed continuously to the left and right ends of the bottom surface portion 11, and the left and right side wall surface portions 14 and 15 are finally folded upward from the lower side (bottom side). Thus, the packaging container 1 is completed. The stay surface portions 18 and 19 can be sandwiched between the left and right side wall surface portions 14 and 15 and the flaps 13A, 13B, 16A and 16B continuous to the left and right ends of the rear wall surface portion 13 and the remaining top surface portion 16a. The packaging container 1 can be formed by folding the blanks in the order described above, and the stay surface portions 18 and 19 can be sandwiched from both sides without going through a complicated folding process, so an automatic box making machine was used. Suitable for box making.

  In the packaging container 1, as described above, the glue portions n2 and n3 used for bonding the left and right side wall surface portions 14 and 15 come into contact with the stopper pieces 18a and 19a at the tips of the stay surface portions 18 and 19 to open and close the open / close surface portion. It is also used to restrict the rotation range of 17 and prevent the stay surface portions 18 and 19 from jumping out. There is no need to consider a surface portion for contacting the stopper pieces 18a, 19a at the tips of the stay surface portions 18, 19 separately. Further, since the packaging container 1 has a small range in which the paper is overlapped, the material can be saved.

(Second embodiment)
9 and 10 are perspective views of the packaging container 2 of the second embodiment. FIG. 9 shows the packaging container 2 with the opening / closing surface 27 closed, and FIG. 10 shows the packaging container 2 with the opening / closing surface 27 opened. Respectively. FIG. 11 is a development view of a blank forming the packaging container 2, and is a view of a surface that becomes the inner surface of the packaging container 2. 12 to 15 show the assembly process of the packaging container 2.

  Referring to FIG. 11, the packaging container 2 includes a rectangular bottom surface portion 21. The front wall surface portion 22 and the rear wall surface portion 23 are continuous in the opposite direction at the front and rear of the bottom surface portion 21 (lower and upper ends in FIG. doing. Flaps 22A and 22B are connected to the left and right ends of the front wall portion 22, and flaps 23A and 23B are connected to the left and right ends of the rear wall portion 23 in opposite directions.

  An arcuate (convex) cut line K extending upward from the lower end of the front wall surface part 22 is formed, and the front wall surface part 22 remains continuous with the bottom surface part 21 and the flaps 22A and 22B by the cut line K. It is divided into a front wall surface portion 22a and a pre-cut wall surface portion 22b cut along a cut line K as will be described later. The glue part n6 is provided in the wall surface part 22b before cutting.

  An open / close surface portion 27 continues to the upper end of the rear wall surface portion 23, and a tip piece 30 continues to the upper end of the open / close surface portion 27. The tip piece 30 is used as an adhesive surface portion for bonding to the front wall surface portion 22 (the pre-cut wall surface portion 22b) by the glue portion n6 to realize cylinder bonding (sack bonding). Stay surface portions 28 and 29 are connected to left and right ends of the opening / closing surface portion 27 in opposite directions. Stopper pieces 28a and 29a projecting outward are formed at the tips of the stay surface portions 28 and 29, respectively. In addition, arc-shaped depressions 28b and 29b are formed at locations near the opening / closing surface 27 and the rear wall 23 of the stay surfaces 28 and 29, respectively. At the upper end of the tip piece 30 connected to the upper end of the opening / closing surface portion 27, a rectangular knob portion 30a is formed to project outward.

  Referring to FIG. 12, first, the front wall surface portion 22 is folded at the boundary with the bottom surface portion 21. Referring to FIG. 13, the opening / closing surface portion 27 is then folded at the boundary with the rear wall surface portion 23. The pre-cut wall surface portion (outer surface) 22b and the front end piece 30 (inner surface) of the front wall surface portion 22 are bonded together by the glue portion n6 provided on the front wall surface portion 22 before cutting.

  Referring to FIG. 14, the front wall surface portion 22 and the rear wall surface portion 23 are erected substantially vertically with respect to the bottom surface portion 21. As in the first embodiment, one of the left and right side surfaces, for example, the right side surface is assembled. A flap 22B continuing to the right end of the front wall surface portion 22 (remaining front wall surface portion 22a) and a flap 23B continuing to the right end of the rear wall surface portion 23 are bent substantially at a right angle. Referring to FIG. 15, stay surface portion 29 that is continuous with the right end of opening / closing surface portion 27 is bent at a right angle. Finally, the right wall surface portion 25 continuous to the right end of the bottom surface portion 21 is bent upward substantially at a right angle, and the right wall surface portion 25 is formed by glue portions n9 and n10 provided at both upper ends of the inner surface of the right wall surface portion 25. Is bonded to the flaps 22B and 23B. The right side is closed.

  A stored item (not shown) is stored from the side of the open left side (end load). The right side that is closed first serves as a stopper for the stored items. After the stored items are inserted, the left side surface is assembled in the same manner as described above to complete the packaging container 2 storing the stored items (see FIG. 9).

  FIG. 16 shows the right side surface of the packaging container 2 with a part of the right wall surface portion 25 omitted, and shows the rotation operation of the stay surface portion 29 when the opening / closing surface portion 27 rotates. Needless to say, the stay surface portion 28 provided on the left side surface of the packaging container 2 moves in the same manner as the stay surface portion 29.

  When the open / close surface portion 27 is closed (see alternate long and short dash line, see FIG. 9), the stay surface portion 29 connected to the open / close surface portion 27 is sandwiched between the right wall surface portion 25 and the flaps 22B and 23B. When the opening / closing surface portion 27 is closed, the stay surface portion 29 cannot be seen from the outside. When the opening / closing surface portion 27 is closed, the recess 29b of the stay surface portion 29 prevents interference with the glue portion n9.

  When the grip portion 30a of the tip piece 30 connected to the tip of the opening / closing surface portion 27 is grasped and lifted (see solid line, FIG. 10), the stay surface portion 29 connected to the opening / closing surface portion 27 is also lifted together with the opening / closing surface portion 27. The opening / closing surface portion 27 and the stay surface portion 29 rotate about the fold line at the boundary between the opening / closing surface portion 27 and the rear wall surface portion 23 as the central axis. Since the pre-cut wall surface 22b is bonded to the inner surface of the tip piece 30, when the open / close surface 27 is first lifted, the pre-cut wall 22b is cut from the front wall 22 along the cut line K. The pre-cut wall surface 22b remains adhered to the inner surface of the tip piece 30. By cutting the front wall surface portion 22b from the front wall surface portion 22, a part of the front wall surface portion 22 of the packaging container 2 is opened, and the contents can be easily taken out obliquely from above (see FIG. 10).

  When the opening / closing surface portion 27 continues to rotate, the stopper piece 29a at the tip of the stay surface portion 29 comes into contact with the glue portion n10 used for bonding the right wall surface portion 25 and the flap 22B, where the stay surface portion 29 rotates. Stops. The opening / closing surface portion 27 connected to the stay surface portion 29 is pivoted.

  When the opening / closing surface portion 27 once opened is closed again, the opening / closing surface portion 27 is closed by the repulsive force of the paper by hooking the knob portion 30a at the tip of the tip piece 30 connected to the opening / closing surface portion 27 to the edge of the remaining front wall surface portion 22a. Is easily retained.

  The packaging container 2 is also completed by folding the left and right side wall surface portions 24 and 25 that are continuous with the left and right ends of the bottom surface portion 21 from the lower side (bottom surface). Since the stay face portions 28 and 29 can be sandwiched from both sides without going through a complicated folding process, it is suitable for box making using an automatic box making machine. In addition, the packaging container 2 has a small range in which the paper is doubled, so that material can be saved.

(Third embodiment)
FIG. 17 is a development view of a blank of the packaging container 3 of the third embodiment. 18 is a perspective view of the packaging container 3 with the opening / closing surface portion 27 closed, and FIG. 19 is a perspective view of the packaging container 3 with the opening / closing surface portion 27 opened. The same members as those in the packaging container 2 shown in FIG. 9 to FIG.

  The packaging container 3 is different from the packaging container 2 described above in the structure of the front wall surface portion 22 and the tip piece 30. Referring to FIG. 17, the cut line K is not formed on the front wall surface portion 22 of the packaging container 3, and a cut S for inserting the insertion piece 34 included in the tip piece 30 is formed instead. Further, the tip piece 30 of the packaging container 3 includes a connecting piece 31 continuous to the opening / closing surface 27, a cut piece 32 sandwiched by two perforations M formed at intervals in the left-right direction of the tip piece 30, and a cut piece The adhesive pieces 33 connected to the pieces 32 are arranged in this order. The adhesive piece 33 is provided with a glue portion n11.

  Referring to FIG. 18, the tip piece 30 is bonded to the front wall surface portion 22 of the packaging container 3 by the glue portion n 11 provided on the adhesive piece 33. The end of the cut piece 32 sandwiched between the two perforations M is grasped and pulled sideways, whereby the cut piece 32 is cut off. By lifting the opening / closing surface portion 27 and the connecting piece 31 connected thereto, the opening / closing surface portion 27 covering the top surface of the packaging container 3 is rotated to open the top surface of the packaging container 3. Stopper pieces 28a and 29a at the tips of the stay surface portions 28 and 29 abut against the glue portions n8 and n10 used for bonding the left and right side wall surface portions 24 and 25 and the flaps 22A and 22B. The rotation and the rotation of the opening / closing surface portion 27 are the same as in the packaging container 2.

  When the opening / closing surface portion 27 once opened is closed again, the insertion piece 34 at the tip of the connecting piece 31 continuous to the opening / closing surface portion 27 is inserted into the cut S formed in the front wall surface portion 22, whereby the opening / closing surface portion 27 is closed. Easy to keep.

1,2,3 Packaging container
11, 21 Bottom
12, 22 Front wall
13, 23 Rear wall
14, 24 Left wall
15, 25 Right side wall
16 Top surface (bonded surface)
17, 27 Opening / closing surface
12A, 12B, 13A, 13B, 16A, 16B, 17A, 17B, 22A, 22B, 23A, 23B Flap
18, 19, 28, 29 Stay surface
18a, 19a, 28a, 29a Stopper piece
30 Tip piece (adhesion surface)
n1, n2, n3, n4, n5, n6, n7, n8, n9, n10, n11 glue part (adhesive member)
M crease (perforation)
K cut line

Claims (5)

Square bottom,
Front, back, left, and right wall surfaces rising from the bottom surface continuously to each of the four sides of the bottom surface,
An opening / closing surface portion covering the top surface of the space surrounded by the bottom surface portion and the front, back, left, and right wall surface portions continuously from the upper end of the rear wall surface portion;
An adhesive surface portion bonded to the inner surface of the opening / closing surface portion continuously to the upper end of the front wall surface portion, or an adhesive surface portion bonded to the outer surface of the front wall surface portion continuously to the tip of the opening / closing surface portion;
The stay surface portion is rotatably sandwiched between the left and right side wall surface portions along the inner surface of the left and right side wall surface portions and the stay surface portion along the inner surface of the left and right side wall surface portions. A flap member that is partially bonded to the left and right side wall surfaces by an adhesive member in an
The open / close surface portion is rotatable about a fold line on the open / close surface portion,
The adhesive member used for partial adhesion of the left and right side wall surface portions and the flap member is located on the rotation locus of the stopper piece at the tip of the stay surface portion that rotates together with the opening and closing surface portion.
Packaging container. The adhesive surface portion that is continuous with the upper end of the front wall surface portion is a top surface portion that covers a part of the top surface of the space surrounded by the bottom surface portion and the front, back, left, and right wall surface portions,
The flap member partially bonded to the left and right side wall surface portions is continuous to both side ends of the opening / closing surface portion,
The packaging container according to claim 1. A cutting line is formed on the top surface part, and the range of the top surface part cut along the cutting line is bonded to the inner surface of the opening and closing surface part.
The packaging container according to claim 2. The adhesive surface portion continuous with the front end of the opening / closing surface portion is a front end piece bonded to the outer surface of the front wall surface portion,
The flap member partially bonded to the left and right side wall surface portions is continuous with both side ends of the front wall surface portion and the rear wall surface portion,
The packaging container according to claim 1. A cutting line is formed on the front wall surface, and a range of the front wall surface cut along the cutting line is bonded to the inner surface of the tip piece.
The packaging container according to claim 4.

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