JP5236050B2 - Square tubular packaging paper box - Google Patents

Description

  The present invention relates to a rectangular tube-shaped packaging paper box, and more particularly to a rectangular tube-shaped packaging paper box suitable for accommodating a packaged object having a circular or elliptical cross section.

  2. Description of the Related Art Conventionally, a rectangular tube-shaped packaging paper box formed in a square in a cross section or a rectangle in a cross section has been used as a packaging paper box that accommodates an article to be wrapped having a true circular or elliptical cross section.

  Such a rectangular paper box with a square cross section or rectangular cross section is stuck in a flat folded state by sticking the required part until the packaged item is packaged. It is assembled and used in the expected rectangular tube shape.

  Thus, in such a rectangular tube-shaped wrapping paper box, a bottom lock type is often employed at the bottom in order to prevent bottom-out and meet the speed of assembly work (see, for example, Patent Document 1). ).

The bottom lock type means that the bottom component pieces provided on a pair of opposed peripheral side walls are joined in advance to the bottom component pieces provided on the adjacent peripheral side walls via a connecting piece, and are flat until they are used. In the folded state, the pair of opposing bottom component pieces and the bottom component piece joined to each of the pair are folded so that the outer surfaces thereof overlap each other, and the rectangular tubular packaging paper box is expected from the flat folded state. When assembling, one end of one bottom component piece is folded so as to enter the inside of the bottom component piece joined to the bottom component piece of the opposed peripheral side wall so that the bottom portion is flush and the same state is maintained. The structure is such that a temporary locked state can be obtained when the cut portions of the required part are engaged with each other.

JP 2006-176188 A

  Such a rectangular tubular packaging paper box, while preventing bottom-out, responds to the quickness of the assembly work, can sufficiently cope with mechanical production, but because it is a simple rectangular parallelepiped or cube in appearance, Visual appeal to users is poor and interesting.

  On the other hand, square tube packaging boxes with regular hexagonal and regular octagonal cross sections tend to attract the user's attention only because of their shape compared to the rectangular parallelepiped or cube. As the number of joints increases, mechanical production becomes difficult.

  In addition, when a round or oval package is accommodated in the rectangular tube-shaped packaging paper box, the corner portion of the paper box is also a wasteful space, and wastes the material used in the paper box. But there is.

  The present invention has been made in view of such technical background, and is intended to provide a rectangular tubular packaging paper box that is attractive in appearance and reduces the materials used, and that is also suitable for mechanical production. Objective.

  Thus, the rectangular tubular packaging paper box according to the present invention has the following configurations [1] to [5].

  [1] A rectangular tubular wrapping paper box whose reference form is a paper box having a rectangular cross section in which four peripheral side walls intersect with each other at right angles, and a pair of diagonal right angle corners formed by the four peripheral side walls. The left two diagonal corners are provided with connecting diagonal walls relatively narrower than the peripheral side walls, in which the adjacent peripheral side walls are diagonally connected in a chamfered manner to the two diagonal corners, A rectangular tubular packaging paper box characterized in that the cross-sectional shape is a hexagon.

  [2] A lid piece is continuously provided on the upper edge of one peripheral side wall via a fold, and an inner flap is continuously provided on each upper edge of a pair of opposed peripheral side walls via a fold. The rectangular tubular packaging according to [1], wherein a bottom component piece is connected to a lower edge of two peripheral side walls through a fold, and a bottom portion that can be unfolded and folded is formed by a combination of these bottom component pieces. Paper box.

  [3] The bottom wall is configured as a bottom lock type in which a bottom constituent piece provided on a pair of opposed peripheral side walls is joined to a bottom constituent piece provided on an adjacent peripheral side wall via a connecting piece. The rectangular tube-shaped packaging paper box described in the preceding item [2].

  [4] An auxiliary flap is connected to the upper edge of the connecting oblique wall via a fold, and the auxiliary flap has a peripheral side wall that does not have an inner flap adjacent to the side edge of the auxiliary flap under an assembled state. The square tube-shaped packaging paper box according to any one of the preceding items [1] to [3], which is formed in a shape that contacts the inner surface of the item.

  [5] The rectangular tube-shaped packaging paper box according to [4], wherein the auxiliary flap is connected to a connecting piece that is connected from the end of the inner flap via a mountain fold through a valley fold. .

  According to the square tubular packaging paper box according to the invention of [1], compared with the conventional normal square tubular packaging paper box according to the reference form, it has a safe accommodation capacity for the circular packaged object as described above. Without any adverse effect, it is possible to reduce the length of the trunk circumference at the time of deployment by the amount of circumference reduction by the inclined wall. Therefore, it is possible to reduce the amount of materials used, thereby contributing to cost reduction and weight reduction.

  In addition, when one peripheral side surface including a connecting oblique wall is arranged on the front side and arranged side by side on a display shelf or the like, the area area that can be viewed from the front side is a conventional simple rectangular cross section. Compared to the case where only one flat peripheral surface of the paper box is seen, it can be relatively enlarged. Therefore, it is possible to add more character information and patterns to the surface, and the oblique wall portion faces the line of sight from diagonally forward to improve the visibility. sell.

  Furthermore, since the connecting slanted wall having a narrower width is connected to the peripheral side wall, the square tube-shaped wrapping paper box having a simple cross-sectional square shape is left to the user while leaving the image of the square tube shape having a rectangular cross section. It can give a different and fresh impression.

  According to the square tubular packaging paper box of the invention of [2], in addition to the effect of the above item [1], automatic box making can be performed using an existing automatic box making machine for square tubular packaging paper boxes. There is an advantage that it is possible and does not require new equipment.

  According to the rectangular tubular packaging paper box according to the invention of [3], in addition to the effect of the above item [2], a bottom lock type is adopted for the bottom wall, so that the conventional rectangular tubular packaging paper box is used. It is possible to realize quick assembly work and prevent damage to the bottom without being inferior to the above.

  According to the square tubular packaging paper box according to the invention of [4], in addition to the effect of any one of the preceding items [1] to [3], a crease is placed on the upper edge of the connecting oblique wall. An auxiliary flap is provided continuously, and the auxiliary flap has an inner flap because the side edge of the auxiliary flap is in contact with the inner surface of the peripheral side wall having no adjacent inner flap under the assembled state. When a force from a direction orthogonal to the peripheral side wall that is not applied is applied, the auxiliary flaps counteract and contribute to deformation prevention.

  According to the rectangular tubular packaging paper box according to the invention of [5], in addition to the effect of the above item [4], the auxiliary flap is connected to the end portion of the inner flap through the mountain fold. Therefore, it is possible to eliminate the problem that the auxiliary flap unintentionally jumps out above the inner flap when the inner flap is deployed to the intended position.

It is the perspective view which notched and showed a part of one Embodiment of the rectangular tube-shaped packaging paper box concerning this invention. It is a top view of the unfolded state seen from the surface side of the same rectangular cylindrical packaging paper box. It is a top view of the same flat folded state. It is a perspective view in the same assembly process. (A) is the II sectional view taken on the line of FIG. 1, (b) is the II-II sectional view taken on the line of FIG. (A) is a development view of the peripheral side wall of the rectangular tubular packaging paper box of the first embodiment, and (b) is a development view of the peripheral side wall of the square cylindrical packaging paper box having a square cross section. It is a perspective view in the middle of an assembly of the rectangular tube-shaped packaging paper box (B) of 2nd Embodiment.

  Hereinafter, embodiments of a rectangular tube-shaped packaging paper box according to the present invention will be specifically described with reference to the drawings. FIG. 1 is an overall perspective view of the rectangular tubular packaging paper box according to the first embodiment, with a part cut away, FIG. 2 is a plan view of the unfolded state viewed from the front side, and FIG. 3 is a flat folded state. 4 is a perspective view during assembly, FIG. 5A is a cross-sectional view taken along the line II of FIG. 1, and FIG. 4B is a cross-sectional view taken along the line II-II of FIG. ) Is an exploded view of the main part of the rectangular tubular packaging paper box of the first embodiment, (b) is an exploded view of the main part of the square tubular packaging paper box having a virtual cross section square, and FIG. 7 is a corner of the second embodiment. It is a perspective view in the middle of an assembly of a cylindrical packaging paper box (B).

  As shown in FIG. 5B, the rectangular tubular packaging paper box (A) of the first embodiment has a square cross section (K) including a pair of virtual diagonal corner portions (Co) (Co) represented by chain lines. ) With four peripheral side walls (1), (2), (3), and (4) corresponding to the side walls of the imaginary cross section square (K) and two connecting oblique walls (11) (12). ) And a hexagonal cross section.

  And the 1st peripheral side wall (1) and the 4th peripheral side wall (4) form one right-angled corner part (60) which mutually intersects at right angles, and the 3rd peripheral side wall (3) and the 2nd peripheral side wall (2) Form a right-angled corner portion (61) facing the right-angled corner portion.

  As shown in FIG. 5 (b), the connecting oblique wall (11) or (12) has a first peripheral side wall (1) and a second peripheral side wall (in the assembled state of the rectangular tubular packaging paper box (A)). 2) or the virtual extension line of the third peripheral side wall (3) and the fourth peripheral side wall (4) is set to intersect at an angle of 45 degrees, and the width thereof is the first to the fourth. It is set narrower than the peripheral side walls (1) (2) (3) (4).

  Further, the interval between the pair of connecting oblique walls (11) and (12) is set to be substantially the same as the interval between the pair of opposed peripheral side walls (1) and (3), and has a perfectly circular cross section. When the packaged item is accommodated, the inner surfaces of the connecting slanted walls (11) and (12) come into contact with the packaged item, and the packaged item is stably accommodated.

  If this square cylindrical packaging paper box (A) is demonstrated based on the expansion | deployment state of FIG. 2, of the 1st surrounding side wall (1) which is one of the surrounding side walls corresponding to the four side walls of a virtual cross-sectional square (K). On the left side are the first slanted wall (11), the second peripheral side wall (2), the third peripheral side wall (3), the second slanted wall (12), and the body-bonding joining piece (5), each having a vertical fold ( 31, (32), (33), (34), and (35). The fourth peripheral side wall (4) is connected to the right side of the first peripheral side wall (1) via a vertical fold (36).

  A lid piece (7) is connected to the upper edge of the first peripheral side wall (1) via a fold (41), and a first bottom component piece ( 21) is continuously provided.

  The said cover piece (7) is formed in the shape corresponding to the cross-sectional shape of this square cylindrical packaging paper box (A), ie, the hexagon shape by which a pair of diagonal corner part of square was cut at 45 degree | times diagonally. The insertion tongue piece (8) is continuously provided through the crease | fold (43) at the front-end | tip.

  The first bottom component piece (21) includes second to fourth bottom portions connected to lower edges of the second peripheral side wall (2), the third peripheral side wall (3), and the fourth peripheral side wall (4). Together with the component pieces (22), (23), and (24), it constitutes the bottom, presents a trapezoidal shape extending diagonally to the left from the lower edge, and has a fold (44) on its long side The connecting piece (25) is provided continuously, and the connecting piece (25) is adhered to the lower surface of the fourth bottom component piece (24) of the adjacent fourth peripheral side wall (4).

  A locking notch (21a) is provided at the end of the first bottom component piece (21) in the vicinity of the connecting piece (25).

  A first auxiliary flap (14) is connected to the upper edge of the first slanted wall (11) on the left side of the first peripheral side wall (1) via a fold (45), and the first auxiliary flap (14 ) Is connected to a first inner flap (16) described later via a connecting piece (19).

  As described above, the first oblique wall (11) is set to be narrower than the first peripheral side wall (1) and the second peripheral side wall (2).

  A first inner flap (16) is connected to the upper edge of the second peripheral side wall (2) connected to the left side of the first inclined wall (11) via a fold (46).

  The first inner flap (16) is provided with a V-shaped cut (16a) at the tip, and a connecting piece (19) for connecting the first auxiliary flap (14) to the lower right side of the first inner flap (16). 53), and the connecting piece (19) and the first auxiliary flap (14) are connected via a valley fold (54).

  A second bottom component piece (22) is connected to the lower edge of the second peripheral side wall (2) via a crease (47).

  A third bottom component piece (23) having the same shape and size as the first bottom component piece (21) connected to the first peripheral side wall (1) is connected to the lower edge of the third peripheral side wall (3). The connecting piece (26) is connected to the long side through the fold (49).

  Similarly to the first bottom component piece (21), the third bottom component piece (23) is provided with a locking notch (23a) at the end near the connecting piece (26).

  A second auxiliary flap (15) is connected to the upper edge of the second inclined wall (12) connected to the left side of the third peripheral side wall (3) via a fold (50). The second auxiliary flap (15) is formed such that, in the assembled state, its side edge is kept parallel to the inner surface of the upper end portion of the third peripheral side wall (3).

  As described above, the second oblique wall (12) is set to be narrower than the third peripheral side wall (3) and the fourth peripheral side wall (4).

  On the left side of the second auxiliary flap (15), there is provided a connecting piece (18) for connecting a joining piece (13) attached to the back surface of a second inner flap (17) described later. The connecting piece (18) is connected to the second auxiliary flap (15) via a valley fold (56), while the connecting piece (13) is connected to the second auxiliary flap (15) via a mountain fold (55). It is installed.

  A fourth bottom component piece (24) is connected to the lower edge of the fourth peripheral side wall (4) connected to the right side of the first peripheral side wall (1) via a fold (52).

  Thus, the rectangular tube-shaped packaging paper box (A) of this embodiment is assembled from the developed state into the expected form as follows.

  First, the third peripheral side wall (3), the second oblique wall (12), and the body bonding joint piece (5) are folded back from the developed state while being flush with each other, while the fourth peripheral side wall (4) is Similarly, it is turned back to the back side, and its end is attached to the body-bonding joining piece (5), and the second inner flap (17) is attached to the joining piece (13).

  At the time of folding, the first to fourth bottom component pieces (21), (22), (23), and (24) are folded inward in advance, and the connecting pieces (25) and (26) are turned to the first bottom component pieces (21). Alternatively, it is folded back to the front side of the third bottom component piece (23), the connection piece (25) is provided on the outer surface side of the fourth bottom component piece (24), and the connection piece is provided on the outer surface side of the second bottom component piece (22). (26) shall be pasted.

  At this time, the lower end portion of the body bonding piece (5) is inserted between the fourth peripheral side wall (4) and the fourth bottom component piece (24).

  FIG. 3 shows a flat folded state in which the required portions as described above are folded and adhered.

  Although not shown in this folded state, the first bottom component piece (21), the fourth bottom component piece (24), and the connecting piece (25) are folded in such a manner that their outer surfaces face each other, and The three bottom component pieces (21), the second bottom component piece (24) and the connecting piece (26) are folded in such a manner that their outer surfaces face each other.

  Thus, from the flat folded state, the fourth peripheral side wall (4) and the second peripheral side wall (2) are raised from the first peripheral side wall (1) to form a rectangular tube.

  When the first to fourth peripheral side walls (1), (2), (3), and (4) are operated in the shape of a rectangular tube, the first bottom component piece (21 that has been folded so that the outer surfaces face each other in the flat state) ), The fourth bottom component piece (24), the third bottom component piece (23), and the second bottom component piece (22) are developed in a flat plate shape, and the locking notches (21a) (23a) of each other. ) Are engaged, and the unfolded state of the first to fourth bottom component pieces (21) (22) (23) (24) is locked.

  Next, after accommodating the article to be packaged in the paper box, as shown in FIG. 4, the first inner flap (16) in an upright state with respect to the second peripheral side wall (2) or the third peripheral side wall (3). When the second inner flap (17) is bent in a direction approaching each other, the connecting piece (18 on the lower surface side of the second inner flap (17) is cut into the V-shaped cut (16a) of the first inner flap (16). ) Is fitted together, the first inner flap (16) and the second inner flap (17) are combined in the locked state.

  During the folding operation of the first and second inner flaps (16) and (17), the auxiliary flaps (14) and (15) are automatically folded below the first and second inner flaps (16) and (17). .

  In such an assembled state, as shown in FIG. 1, a narrow slanted wall is provided at the end of the peripheral side wall, so a novel impression to the user while leaving a virtual cross-sectional square image. Can provide a square box-shaped wrapping paper box rich in interest.

  Furthermore, since the surface formed by the peripheral side wall and the oblique wall is wider than one side wall of the virtual cross section square, more character information and patterns can be attached to the surface, and the visual effect is enhanced. be able to.

  Moreover, as shown to Fig.6 (a), the 1st-4th surrounding side wall (1) (2) (3) (4) of the rectangular tube-shaped packaging paper box (A) of this embodiment, joining for body sticking The total width of the piece (5) and the slanted walls (11) and (12) is the four peripheral side walls (K1) (K2) (K3) of the square cylinder-shaped packaging paper box having a virtual cross section shown in FIG. ) (K4) and the entire width of the cylinder pasting piece (K5), the material used can be reduced.

  In addition to this, the bottom part is combined with the bottom lock type, so that the assembly work can be performed quickly and the bottom part can be prevented from being damaged without being inferior to the conventional rectangular tubular packaging paper box that uses the bottom lock type. .

  Furthermore, a second auxiliary flap (15) is connected to the upper edge of the second inclined wall (12) via a fold (50), and the second auxiliary flap (15) is in an assembled state. Since the side edge of the second auxiliary flap (15) is formed in a shape contacting the inner surface of the third peripheral side wall (3) not having the adjacent inner flap, the direction orthogonal to the third peripheral side wall (3) When a force is applied, the second auxiliary flap (15) can be brought into contact with and opposed to the third peripheral side wall (3), thereby contributing to prevention of deformation.

  Further, the auxiliary flaps (14), (15) are connected to the connecting pieces (19), (18) connected from the ends of the inner flaps (16), (17) via the mountain folds (53), (55). Since the folds (54) and (56) are connected to each other, the auxiliary flaps (14) and (15) are unintentionally moved into the inner flaps (16) and (17) when the inner flaps (16) and (17) are deployed to the intended positions. It is possible to eliminate the problem of popping out above the flaps (16) and (17).

  FIG. 7 shows the process of assembling the rectangular tubular packaging paper box (B) according to another embodiment. The rectangular tubular packaging paper box (B) includes a first inner flap (56) and a first auxiliary flap. (64), the 2nd inner flap (57) and the 2nd auxiliary flap (65) are not connected, but the 1st inner flap (56) and the 2nd inner flap (57) are mutually V-shaped. It is made to combine through a notch part (56a) (57a).

  Since the other configuration is substantially the same as that of the previous embodiment, the detailed description is omitted.

  In addition, the rectangular tube-shaped packaging paper box of any of the above embodiments is also formed in a rectangular tube shape with a square tube-shaped packaging paper box having a square cross section as a reference form, but a square tube with a cross-sectional rectangle as a reference form. It can also be made into a shape.

  The bottom is preferably a bottom lock type, but is not limited thereto.

A ····························································································· 2 4 ........ 4th peripheral side wall 5.... Body bonding joint piece 7... Lid piece 11.・ ・ ・ ・ Second slanted wall 14 ・ ・ ・ ・ ・ ・ First auxiliary flap 15 ・ ・ ・ ・ ・ ・ Second auxiliary flap 16 ・ ・ ・ ・ ・ ・ First inner flap 17 ・ ・ ・ ・ ・ ・ first 2 inner flaps 21 to 24... 1st to 4th bottom component pieces 53 and 55. Mountain folds 54 and 56.

Claims (4)

A rectangular cylindrical packaging paper box having a rectangular paper box with four peripheral side walls intersecting each other at a right angle as a reference form,
The pair of diagonal right angle corners formed by the four peripheral side walls are left as they are, and the adjacent two peripheral wall right angle corners are obliquely connected in a chamfered shape to the adjacent peripheral side walls. A connecting oblique wall having a width relatively narrower than the peripheral side wall is provided, and the cross-sectional shape is formed in a hexagon ,
The auxiliary flap connected to the upper edge of the connecting slanted wall via a fold is folded from the end of the inner flap connected to the upper edge of each of the pair of opposed peripheral side walls via a fold. A rectangular tubular wrapping paper box, characterized in that it is connected to a connecting piece provided continuously through an eye via a valley fold . A lid piece is connected to the upper edge of one peripheral side wall via a fold, and a bottom component piece is connected to the lower edge of four peripheral side walls via a fold. 2. The rectangular tubular packaging paper box according to claim 1, wherein a foldable bottom wall is formed.   The bottom wall is configured in a bottom lock type in which a bottom component piece provided on a pair of opposed peripheral side walls is joined to a bottom component piece provided on an adjacent peripheral side wall via a connecting piece. The rectangular tubular packaging paper box according to claim 2. The auxiliary flaps are connected to each other, and the auxiliary flaps are formed in a shape in which the side edges of the auxiliary flaps abut against the inner surfaces of the peripheral side walls not having the adjacent inner flaps under the assembled state. Item 4. A rectangular tubular packaging paper box according to any one of items 3 to 4.

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