Handle construction

Abstract

To provide a grip structure of being easily gripped even when a use amount of a resin for packaging is reduced.SOLUTION: A grip structure of a collective package is obtained by packaging an aggregate formed by integrating a plurality of sanitary article storage boxes with a film or a sheet. The film or the sheet comprises: a first band body wound in a first direction of the aggregate; and a second band body wound from an upper portion of the first band body in a second direction orthogonal to the first direction of the aggregate. According to the grip structure constituted from a part of the second band body, at least one fold line that extends in a longitudinal direction of the grip structure is formed.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] This invention relates to a handle structure. [Background technology]

[0002] Sanitary products such as tissue paper are stored in boxes (also called cartons) made of cardboard or the like, and are used in the form of sanitary product storage boxes that are pulled out from an opening on the top of the box (see, for example, Patent Document 1). Such sanitary product storage boxes are distributed as a collective package in which multiple boxes are stacked together and wrapped in a resin film packaging material in a caramel or gusset packaging, and a resin film handle is attached (see, for example, Patent Document 2).

[0003] In recent years, reducing or minimizing the amount of resin used in packaging materials has attracted attention from the perspective of reducing CO2 emissions and eliminating plastics. [Prior art documents] [Patent Documents]

[0004] [Patent Document 1] Japanese Patent Publication No. 2009-83866 [Patent Document 2] Japanese Patent Publication No. 2019-177938 [Overview of the project] [Problems that the invention aims to solve]

[0005] The resin film used in collective packaging is utilized as a handle for carrying or as temporary storage material, but is ultimately discarded. Therefore, it is desirable to reduce the amount of resin used in collective packaging. On the other hand, reducing the amount of resin film used in collective packaging makes the packaging of the collective unstable, and the stacked collectives are more likely to shift. In addition, it becomes difficult to secure enough handles, making it difficult to carry the product with a handle structure.

[0006] The objective of this invention is to provide a handle structure that is easy to grip, even while reducing the amount of resin used for packaging. [Means for solving the problem]

[0007] A first aspect of the present invention is a handle structure for a collective packaging body in which a collection of a plurality of sanitary product storage boxes is wrapped in a film or sheet, wherein the film or sheet is composed of a first strip wrapped around the collective body in a first direction and a second strip wrapped over the first strip in a second direction perpendicular to the first direction of the collective body, and the handle structure is composed of a part of the second strip and has at least one fold line extending in the longitudinal direction of the handle structure.

[0008] In the first embodiment, a first strip constituting a film or sheet can be wrapped around the assembly in a first direction, thereby binding the assembly together. Furthermore, a second strip constituting a film or sheet can be wrapped over the first strip in a second direction perpendicular to the first direction of the assembly, thereby binding the assembly and the first strip wrapped around it together simultaneously. As a result, stable packaging can be maintained while reducing the amount of resin used.

[0009] Furthermore, in the first embodiment, since the handle structure of the aggregate packaging, in which the aggregate is wrapped in film or sheet, is formed from a part of the second strip, the second strip can also be used as a handle. In addition, since the handle structure has at least one fold line extending in the longitudinal direction, the handle structure folds along the fold line, making it easier to grasp as a handle. Therefore, in the first embodiment, the aggregate packaging can be easily carried even if the amount of resin is reduced.

[0010] Furthermore, in the first embodiment, since at least one fold line extending in the longitudinal direction of the handle structure is formed, even if the width of the handle structure is increased, the handle structure folds along the fold line, so that the width of the handle structure can be reduced when the handle structure is grasped. Therefore, by increasing the width of the handle structure, the strength of the handle structure as a handle can be increased, and the handle structure can be easily grasped as a handle.

[0011] Furthermore, in the first embodiment, since the handle structure constitutes part of the second band, the width of the handle structure increases as the width of the second band increases. However, as described above, even if the width of the handle structure is increased, it can still be easily grasped as a handle. Therefore, since the width of the second band, which is partly the handle structure, can be increased, the packaging can be further stabilized without reducing the ease of gripping as a handle.

[0012] A second aspect of the present invention is the handle structure according to the first aspect, wherein the at least one fold line is a valley fold line. In the second aspect, since the at least one fold line extending in the longitudinal direction of the handle structure is a valley fold line, the handle structure is folded in a valley fold along the fold line, making the handle structure easier to fit in the hand and easier to grasp.

[0013] A third aspect of the present invention is a handle structure according to the first or second aspect, wherein the fold line comprises at least one mountain fold line and at least two valley fold lines arranged at predetermined intervals in the width direction perpendicular to the longitudinal direction of the handle structure and the mountain fold line.

[0014] In the third embodiment, since the mountain fold line and the valley fold line are provided at a predetermined interval in the width direction of the handle structure, the handle structure can be folded along the fold lines in valley folds and mountain folds, thereby allowing the handle structure to deform into an accordion shape. Therefore, in the third embodiment, even if the width of the handle structure is significantly increased, when the handle structure is grasped, the width of the handle structure shrinks to match the size of the hand, thus increasing the strength of the handle structure while making it easy to grasp.

[0015] A fourth aspect of the present invention is a handle structure according to any one of the first to third aspects, wherein the fold line near at least one end in the width direction is a valley fold line. In the fourth aspect, by making the fold line near at least one end in the width direction of the handle structure a valley fold line, when the handle structure is grasped, the end of the handle structure on the side where the valley fold line in the width direction is formed is less likely to come into contact with the hand, thereby reducing the burden on the hand grasping the handle structure.

[0016] A fifth aspect of the present invention is a handle structure according to any one of the first to fourth aspects, wherein the valley fold line is curved inward in the width direction. In the fifth aspect, since the valley fold line near at least one end in the width direction is curved inward in the width direction of the handle structure, the curved valley fold line folds into a valley fold to match the shape of the hand that grasps the handle structure, the handle structure fits more easily to the hand and can be grasped stably.

[0017] A sixth aspect of the present invention is a handle structure according to any one of the first to fifth aspects, wherein the handle structure is made of polypropylene resin. Compared to polyethylene, for example, as a material for films or sheets, polypropylene resin is a hard and less stretchable material.

[0018] In the sixth embodiment, since the handle structure is formed from such polypropylene resin, the handle structure is less likely to stretch as a grip, allowing for a stable grip. Furthermore, even if the handle structure becomes rigid, it folds along the fold lines, making it easier to grip as a handle.

[0019] A seventh aspect according to the present invention is the handle structure according to any one of the first to sixth aspects, wherein the width of the handle structure is not less than 60 mm and not more than 120 mm. In the seventh aspect, setting the width of the handle structure to be not less than 60 mm and not more than 120 mm allows increasing the width of the second band, a part of which serves as the handle structure, thereby further stabilizing the packaging. In addition, even if the width of the handle structure is increased, the width of the handle structure shrinks when the handle structure is grasped, so the handle structure can be easily grasped as a handle.

[0020] An eighth aspect according to the present invention is a handle structure for a package obtained by wrapping an article to be packaged with a film or sheet band, wherein the handle structure is formed of a part of the band, and at least one fold line extending in the longitudinal direction of the handle structure is formed in the handle structure.

[0021] In the eighth aspect, since the handle structure of the package obtained by wrapping the article to be packaged with the film or sheet band is formed of a part of the band, the band can also serve as a handle. In addition, since at least one fold line extending in the longitudinal direction is formed in the handle structure, the handle structure is folded along the fold line, which makes the handle structure easy to grasp as a handle. Therefore, in the eighth aspect, the package can be easily carried even when the amount of resin used is reduced.

[0022] Furthermore, in the eighth aspect, since at least one fold line extending in the longitudinal direction of the handle structure is formed, the handle structure is folded along the fold line even when the width of the handle structure is increased, so that the width of the handle structure can be reduced when the handle structure is grasped. Therefore, increasing the width of the handle structure can increase the strength of the handle structure as a handle, and allows the handle structure to be easily grasped as a handle.

[0023] Furthermore, in the eighth aspect, since the handle structure forms a part of the band, the width of the handle structure increases as the width of the band increases. However, as described above, even if the width of the handle structure is increased, the handle can be easily grasped. Therefore, the width of the band, a part of which serves as the handle structure, can be increased, so that the packaging can be further stabilized without reducing the ease of grasping as a handle.

[0024] A ninth aspect according to the present invention is a handle structure for a package, which is formed of a film or sheet band, and is formed with at least one fold line extending in the longitudinal direction of the band.

[0025] In the ninth aspect, the handle structure of the package is formed of a film or sheet band, and at least one fold line extending in the longitudinal direction of the band is formed, so that the handle structure is folded along the fold line, which makes the handle structure easy to grasp as a handle. Therefore, in the ninth aspect, the package can be easily carried even when the amount of resin used is reduced.

[0026] Furthermore, in the ninth aspect, since at least one fold line extending in the longitudinal direction of the band is formed, even if the width of the band constituting the handle structure is increased, the band is folded along the fold line, so the width of the band can be reduced when the handle structure is grasped. Therefore, by increasing the width of the band, the strength of the band constituting the handle structure as a handle can be enhanced, and the band can be easily grasped as a handle. Effects of the Invention

[0027] According to one aspect of the present invention, an easily graspable handle structure can be provided even when the usage amount of resin for packaging is reduced. Brief Description of the Drawings

[0028] [Figure 1] It is a perspective view of a collective package provided with the handle structure of the first embodiment. [Figure 2] It is a top view of the collective package of Fig. 2. [Figure 3] This figure shows the handle structure of the first embodiment (part of Figure 2). [Figure 4] This figure shows the handle structure of the second embodiment. [Figure 5] This is a diagram showing the handle structure of the third embodiment. [Figure 6] This diagram shows a handle structure without a fold line. [Modes for carrying out the invention]

[0029] Embodiments of the present invention will be described in detail with reference to the drawings. In each drawing, common parts may be denoted by the same reference numerals and their description may be omitted. Also, the scale of each part in each drawing may differ from the actual scale. In each drawing, a three-dimensional Cartesian coordinate system with three axes (X, Y, and Z directions) is used, with the longitudinal direction (left-right direction) of the handle structure being the X direction, the short direction (front-back direction) being the Y direction, and the thickness direction (up-down direction) being the Z direction.

[0030] Furthermore, in this specification, deviations in directions such as orthogonal are permitted to the extent that they do not impair the function and effect of the embodiment. Orthogonal may include substantially orthogonal directions.

[0031] <First Embodiment> Figures 1 to 3 show a collective packaging body equipped with a handle structure of the first embodiment. The handle structure 31 of the first embodiment constitutes the handle structure of a collective packaging body 100 in which a collection of multiple hygiene product storage boxes 10 is wrapped in film or sheet.

[0032] The hygiene product storage box 10 is a roughly carton containing several sheets of tissue paper (not shown), which is an example of a hygiene product. In this embodiment, five identical hygiene product storage boxes (cartons) 10 are stacked (accumulated) in the vertical direction (Z direction). The number of cartons 10 that make up the accumulation is not limited and can be two or more.

[0033] As shown in Figure 1, the sanitary product storage box 10 is formed in a substantially rectangular parallelepiped shape and has a top surface 11, a bottom surface 12, a pair of side surfaces 13 and 14, and a pair of end surfaces 15 and 16. The top surface 11 and the bottom surface 12 face each other in the height direction (Z direction) of the sanitary product storage box 10. The side surfaces 13 and 14 face each other in the short direction (Y direction) of the sanitary product storage box 10. The end surfaces 15 and 16 face each other in the long direction (X direction) of the sanitary product storage box 10.

[0034] The material of the sanitary product storage box 10 is not limited, and for example, base paper made primarily from pulp can be used. Here, base paper refers to a hard, thick paper that serves as the material for assembling the sanitary product storage box 10. The pulp composition of the base paper is not particularly limited, and for example, the pulp content can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass. In this embodiment, coated cardboard made from virgin pulp, recycled paper pulp, etc., is used as the base paper.

[0035] Furthermore, while there are no restrictions on the basis weight of the base paper, from the perspective of ensuring sufficient strength for use, the basis weight of the base paper should be 200 g / m². 2 More than 500g / m 2 The following, preferably 230 g / m² 2 More than 450g / m 2 The following, and more preferably 270 g / m² 2 More than 430g / m 2 The following applies. In this specification, basis weight is measured in accordance with the provisions of JIS P 8124 (2011).

[0036] The thickness of the base paper is not particularly limited, and the paper thickness measured under the conditions of JIS P 8111 (1998) can be used. For example, if the base paper is coated cardboard, the paper thickness of the base paper can be 0.1 mm or more and 3 mm or less, preferably 0.3 mm or more and 2 mm or less, and more preferably 0.5 mm or more and 1 mm or less.

[0037] The dimensions of the sanitary product storage box 10 are not limited, and can be determined according to the amount and dimensions of the sanitary products to be stored, etc. For example, the length of the sanitary product storage box 10 in the longitudinal direction (X direction) can be 100 mm or more and 300 mm or less, preferably 150 mm or more and 280 mm or less.

[0038] Further, the width of the sanitary product storage box 10 in the width direction (Y direction) can be 100 mm or more and 150 mm or less, preferably 100 mm or more and 130 mm or less. Furthermore, the height of the sanitary product storage box 10 in the height direction (Z direction) can be 30 mm or more and 150 mm or less, preferably 40 mm or more and 100 mm or less.

[0039] The plurality of sanitary products accommodated in the sanitary product storage box 10 are constituted by a sanitary product laminate (not shown) laminated in the lamination direction (Z direction).

[0040] The material of the sanitary product is not particularly limited, and is, for example, paper, nonwoven fabric, cloth, or the like. When the sanitary product is made of paper, a known pulp composition for paper sanitary products (e.g., tissue paper) can be used. The blending ratio of pulp can be, for example, 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

[0041] Further, the basis weight of the sanitary product is not particularly limited, but depending on the number of plies, in the case of paper, it is 5 g / m 2 or more and 80 g / m 2 or less, and in the case of nonwoven fabric, it is 20 g / m 2 or more and 100 g / m 2 or less, which is desirable. The basis weight is measured in accordance with the provisions of JIS P 8124 (2011).

[0042] Further, the thickness of the sanitary product is not particularly limited, and the paper thickness measured under the environment of JIS P 8111 (1998) can be adopted. For example, when the sanitary product is made of paper, the paper thickness per 1 ply (per 2 plies in the case of 2 plies) can be 50 µm or more and 500 µm or less, preferably 60 µm or more and 330 µm or less.

[0043] The form of sanitary products is not particularly limited and can be applied to items such as tissue paper, paper towels, toilet paper, kitchen paper, baby or adult diapers, and sanitary napkins. Furthermore, sanitary tissues containing moisturizing ingredients (e.g., lotion tissues) are also included in the category of sanitary tissues such as paper towels and tissue paper. The sanitary products can be used for industrial, household, or portable purposes.

[0044] The film material can be a resin film such as polyethylene or polypropylene. The sheet material can be a paper sheet such as kraft paper. However, the film or sheet material is not limited to these.

[0045] In the first embodiment, the film or sheet is composed of a first strip 20 and a second strip 30.

[0046] The first strip 20 is wrapped around the assembly 10 in the first direction (Y direction and Z direction). The material of the first strip 20 is not particularly limited, but for example, a resin film such as polyethylene or polypropylene, or a paper sheet such as kraft paper can be used. Both ends of the first strip 20 (not shown) are bonded to the assembly 10 while the first strip 20 is wrapped around it.

[0047] The dimensions of the first strip 20 are not particularly limited. For example, the width of the first strip 20 is 60 mm or more and 120 mm or less, preferably 65 mm or more and 115 mm or less, and more preferably 70 mm or more and 110 mm or less. The thickness of the first strip 20 is 20 μm or more and 60 μm or less, preferably 25 μm or more and 55 μm or less, and 30 μm or more and 50 μm or less.

[0048] The second strip 30 is wrapped around the first strip 20 in a second direction (X and Z directions) perpendicular to the first direction (Y and Z directions) of the assembly 10. The material of the first strip 20 is not particularly limited, but for example, a resin film such as polyethylene or polypropylene, or a paper sheet such as kraft paper can be used, with polypropylene being preferred. Both ends of the second strip 30 (not shown) are bonded to the assembly 10 while the second strip 30 is wrapped around it.

[0049] The dimensions of the second strip 30 are not particularly limited. For example, the width of the second strip 30 is 60 mm or more and 120 mm or less, preferably 65 mm or more and 115 mm or less, and more preferably 70 mm or more and 110 mm or less. The thickness of the second strip 30 is 20 μm or more and 60 μm or less, preferably 25 μm or more and 55 μm or less, and 30 μm or more and 50 μm or less.

[0050] The first strip 20 and the second strip 30 may be bonded to each other. In this case, it is preferable to bond the first strip 20 and the second strip 30 on the bottom surface 12 of the assembly 10.

[0051] The handle structure 31 can constitute the handle (or grip) of the collective packaging 100. The handle structure 31 is made up of a part of the second strip 30 (see Figure 1). That is, a part of the second strip 30 can constitute the handle of the collective packaging 100. In this embodiment, the handle structure 31 is placed on the collective 10 and is formed in the portion of the second strip 30 that intersects with the first strip 20.

[0052] The handle structure 31 has at least one fold line 40 extending in the longitudinal direction (X direction) of the handle structure 31. Here, the fold line indicates a crease along which the handle structure can be folded. In this embodiment, the at least one fold line 40 extending in the longitudinal direction (X direction) is composed of three fold lines (fold lines 41, 42, and 43).

[0053] In this embodiment, the three fold lines (fold lines 41, 42, and 43) that constitute the fold line 40 are arranged at predetermined intervals in the width direction (Y direction) perpendicular to the longitudinal direction (X direction) of the handle structure 31. Fold line 41 is located in the center of the width direction (Y direction) of the handle structure 31, while fold lines 42 and 43 are located near both ends 31A and 31B of the width direction (Y direction) of the handle structure 31, respectively.

[0054] Furthermore, it is preferable that at least one fold line 40 is a valley fold line. In addition, it is preferable that at least one fold line (fold line 42 or fold line 43) near one end in the width direction (Y direction) of the handle structure 31 is a valley fold line. In this embodiment, both the fold line 42 near one end 31A and the fold line 43 near one end 31B of the handle structure 31 are composed of valley fold lines V. Note that in Figures 1 to 3, the valley fold lines V (fold lines 42 and 43) are shown as dashed lines.

[0055] Furthermore, the fold line 40 is composed of at least one mountain fold line M and at least two valley fold lines V, and it is preferable that the two valley fold lines V are arranged at a predetermined interval from the mountain fold line M in the width direction (Y direction) of the handle structure 31. Here, the predetermined interval is arbitrary, but is preferably 3 mm or more and 20 mm or less, more preferably 5 mm or more and 18 mm or less, and even more preferably 10 mm or more and 15 mm or less.

[0056] In this embodiment, of the fold lines 40, fold line 41 (a fold line located in the center of the width direction (Y direction) of the handle structure 31) is composed of a mountain fold line M, and fold lines 42 and 43 (fold lines located on both ends 31A and 31B of the width direction (Y direction) of the handle structure 31) are composed of valley fold lines V. In Figures 1 to 3, the valley fold line V (fold lines 42 and 43) is shown as a dashed line, while the mountain fold line M (fold line 41) is shown as a solid line.

[0057] It is preferable that the valley fold line V constituting the fold line 40 (fold line 42 or fold line 43) near at least one end (end 31A or end 31B) in the width direction (Y direction) of the handle structure 31 curves inward in the width direction (Y direction) of the handle structure 31. In this embodiment, the fold line 41 (mountain fold line M) is formed linearly in the center of the width direction (Y direction) of the handle structure 31, and the fold lines 42 and 43 (both valley fold lines V) are formed in an arc shape that is convex from the end 31A or end 31B side toward the central fold line 41 (mountain fold line M) (Figures 1 to 3).

[0058] The material of the handle structure 31 is not particularly limited, but for example, resin films such as polyethylene and polypropylene, or paper sheets such as kraft paper can be used. Among these, polypropylene is preferred from the viewpoint of ensuring strength and robustness as a handle, and paper sheets are preferred from the viewpoint of reducing the amount of resin and ensuring strength.

[0059] In this embodiment, as described above, the handle structure 31 is part of the second strip 30, and since the second strip 30 is made of polypropylene resin, the handle structure 31, which constitutes part of this second strip 30, is also made of polypropylene resin.

[0060] The width W of the handle structure 31 is 60 mm or more and 120 mm or less, preferably 65 mm or more and 115 mm or less, and more preferably 70 mm or more and 110 mm or less. Since the width of the second band 30 is 60 mm or more and 120 mm or less, the width W of the handle structure 31 which constitutes a part of the second band 30 is also 60 mm or more and 120 mm or less.

[0061] As described above, the handle structure 31 of this embodiment allows the assembly 10 to be bound together by wrapping the first strip 20, which constitutes the film or sheet, around the assembly 10 in a first direction (Y direction and Z direction). Furthermore, by wrapping the second strip 30, which constitutes the film or sheet, over the first strip 20 in a second direction (X direction and Z direction) perpendicular to the first direction (Y direction and Z direction) of the assembly 10, the assembly 10 and the first strip 20 wrapped around the assembly 10 can be bound together simultaneously. Therefore, stable packaging can be maintained while reducing the amount of resin used.

[0062] Furthermore, in this embodiment, since the handle structure 31 of the aggregate packaging 100, in which the aggregate 10 is wrapped in film or sheet, is composed of a part of the second strip 30, the second strip 30 can also be used as a handle. In addition, since the handle structure 31 has at least one fold line 40 extending in the longitudinal direction, the handle structure 31 folds along the fold line 40, making it easier to grasp as a handle. Therefore, in this embodiment, the aggregate packaging 100 can be easily carried even if the amount of resin is reduced.

[0063] Furthermore, in this embodiment, since at least one fold line 40 extending in the longitudinal direction of the handle structure 31 is formed, even if the width W of the handle structure 31 is increased, the handle structure 31 folds along the fold line 40, so that the width W of the handle structure 31 can be reduced when the handle structure 31 is grasped. Therefore, by increasing the width W of the handle structure 31, the strength of the handle structure 31 as a handle can be increased, and the handle structure 31 can be easily grasped as a handle.

[0064] Furthermore, in this embodiment, since the handle structure 31 constitutes a part of the second band 30, the width W of the handle structure 31 also increases as the width of the second band 30 increases. However, as described above, even if the width W of the handle structure 31 is increased, it can still be easily grasped as a handle. Therefore, since the width of the second band 30, which is partly the handle structure 31, can be increased, the packaging can be further stabilized without reducing the ease of gripping as a handle.

[0065] As described above, in this embodiment, the handle structure 31 has at least one fold line 40 (fold lines 42, 43) extending in the longitudinal direction (X direction) of the handle structure 31 which is a valley fold line V. As a result, the handle structure 31 is folded in a valley fold along the fold lines 42, 43, making it easier to fit in the hand and easier to grasp.

[0066] In this embodiment, as described above, the mountain fold line M and the valley fold line V are provided at a predetermined interval in the width direction (Y direction) of the handle structure 31, so that the handle structure 31 can be folded in valley folds and mountain folds along the fold lines 40, and the handle structure 31 can be deformed into an accordion shape. Therefore, in this embodiment, even if the width W of the handle structure 31 is significantly increased, when the handle structure 31 is grasped, the width W of the handle structure 31 shrinks to match the size of the hand, so that the handle structure 31 can be easily grasped while increasing the strength of the handle structure 31.

[0067] In this embodiment, as described above, by making the fold lines 42 and 43 near at least one end (ends 31A and 31B) in the width direction (Y direction) of the handle structure 31 into valley fold lines V, when the handle structure 31 is grasped, the end (ends 31A and 31B) on the side where the valley fold line V in the width direction (Y direction) of the handle structure 31 is formed is less likely to come into contact with the hand, thus reducing the burden on the hand grasping the handle structure 31.

[0068] In the handle structure 31 of the first embodiment, as described above, the valley fold line V near at least one end (ends 31A, 31B) in the width direction (Y direction) of the handle structure 31 is curved inward in the width direction (Y direction). As a result, the curved valley fold line V folds into a valley fold to match the shape of the hand that grasps the handle structure 31, making it easier for the handle structure 31 to fit the hand and allowing for a stable grip on the handle structure.

[0069] In this embodiment, since the handle structure 31 is made of polypropylene resin as described above, the handle structure 31 is less likely to stretch as a handle, allowing for a stable grip. Furthermore, even if the handle structure 31 hardens, it folds along the fold line 40, making it easier to grip as a handle.

[0070] In this embodiment, as described above, by setting the width W of the handle structure 31 to 60 mm or more and 120 mm or less, the width of the second strip 30, which is partly the handle structure 31, can be increased, thereby further stabilizing the packaging of the aggregate packaging 100. In addition, even if the width W of the handle structure 31 is increased, the width W of the handle structure 31 shrinks when the handle structure 31 is grasped, so the handle structure 31 can be easily grasped as a handle.

[0071] Furthermore, by bonding the first band 20 and the second band 30 to each other, the aggregate 10 can be bound together with the first band 20 and the second band 30 fixed to each other. Therefore, in the second embodiment, displacement of the assembled aggregate 10 can be suppressed. Also, even if the second band 30 is used as a handle for the aggregate packaging 200, the second band 30 can be grasped stably.

[0072] In the first embodiment, the handle structure is used for a composite package in which a collection of multiple sanitary product storage boxes is packaged, but the object to which the handle structure can be used is not limited to a composite package of sanitary product storage boxes. In this embodiment, the handle structure 31 of the first embodiment may also be used as a handle structure for a package in which the packaged object is wrapped in a strip of film or sheet.

[0073] In this case, the packaging is a packaging other than the collective packaging of the sanitary product storage boxes, and may be either a collective packaging or individual packaging. The packaged items are multiple packaged items other than the sanitary product storage boxes. The film or sheet can be the same film or sheet as the handle structure 31 of the first embodiment. The band can be the same band as the second band 30 of the first embodiment.

[0074] The handle structure 31 of this embodiment is composed of a part of the band 30, and at least one fold line is formed extending in the longitudinal direction (X direction) of the handle structure 31. This fold line may be configured in the same way as the fold line 40 (fold lines 41, 42, 43) in the handle structure 31 of the first embodiment (see Figures 2 and 3).

[0075] In this embodiment, the handle structure 31 of the packaged body, which is wrapped in a strip 30 of film or sheet, is formed from a part of the strip 30, so the strip 30 can also be used as a handle. Furthermore, the handle structure 31 has at least one fold line 40 (fold lines 41, 42, 43) extending in the longitudinal direction (X direction), so that the handle structure 31 folds along the fold line 40, making it easier to grasp as a handle. Therefore, in this embodiment, the packaged body can be easily carried even if the amount of resin is reduced.

[0076] Furthermore, in this embodiment, at least one fold line 40 (fold lines 41, 42, 43) is formed in the longitudinal direction (X direction) of the handle structure 31. Therefore, even if the width W of the handle structure 31 is increased, the handle structure 31 folds along the fold line 40, thus reducing the width W of the handle structure 31 when it is grasped. As a result, increasing the width W of the handle structure 31 increases its strength as a handle, making it easier to grasp the handle structure 31 as a handle.

[0077] Furthermore, in this embodiment, since the handle structure 31 constitutes a part of the band 30, the width W of the handle structure 31 increases as the width of the band 30 increases. However, as described above, even if the width W of the handle structure 31 is increased, it can still be easily grasped as a handle. Therefore, since the width of the band 30, which is partly the handle structure 31, can be increased, the packaging can be further stabilized without reducing the ease of gripping as a handle.

[0078] Furthermore, although the above embodiment focuses on the handle structure 31 which constitutes a part of the band 30, the handle structure may be configured as a separate component from the band 30. In this embodiment, the handle structure 31 of the first embodiment may be configured as a separate component from the band 30.

[0079] In this embodiment, the handle structure 31 of the packaging is formed from a strip 30 of film or sheet, and at least one fold line 40 (fold lines 41, 42, 43) is formed on the strip 30 in the longitudinal direction (X direction). As a result, the handle structure 31 folds along the fold line 40, making it easier to grasp as a handle. Therefore, in this embodiment, the packaging can be easily carried even if the amount of resin is reduced.

[0080] Furthermore, in this embodiment, since at least one fold line 40 (fold lines 41, 42, 43) is formed extending in the longitudinal direction (X direction) of the band 30, even if the width of the band 30 constituting the handle structure 31 is increased, the band 30 folds along the fold line 40, so that the width of the band 30 can be reduced when the handle structure 31 is grasped. Therefore, by increasing the width of the band 30, the strength of the band 30 as a handle constituting the handle structure 31 can be increased, and the band 30 can be easily grasped as a handle.

[0081] <Second Embodiment> Figure 4 shows the handle structure of the second embodiment. In Figure 4, parts common to the first embodiment (Figure 3) are denoted by the same or corresponding reference numerals as those used in Figure 3, and their descriptions are omitted.

[0082] In the handle structure 31 of the second embodiment, the three fold lines (fold lines 41, 42, and 43) that constitute the fold line 40 are all formed in a straight line in the width direction (Y direction) of the handle structure 31. That is, the handle structure 31 of the second embodiment has the same configuration and effects as the handle structure 31 of the first embodiment, except that the valley fold lines V (fold lines 42 and 43) near both ends 31A and 31B in the width direction (Y direction) of the handle structure 31 are curved inward in the width direction (Y direction) of the handle structure 31.

[0083] <Third Embodiment> Figure 5 shows the handle structure of the third embodiment. In Figure 5, parts common to the first embodiment (Figure 3) are denoted by the same or corresponding reference numerals as those used in Figure 3, and their descriptions are omitted. In the handle structure 31 of the third embodiment, fold line 41 (a fold line located in the center of the width direction (Y direction) of the handle structure 31) of the fold lines 40 is composed of a valley fold line V.

[0084] Then, a fold line 44 is formed between fold line 41 and fold line 42 (a fold line located on one end 31A in the width direction (Y direction) of the handle structure 31), and a fold line 45 is formed between fold line 41 and fold line 43 (a fold line located on one end 31B in the width direction (Y direction) of the handle structure 31). Both fold lines 44 and 45 are composed of straight mountain fold lines M.

[0085] In the handle structure 31 of the third embodiment, two mountain fold lines M are arranged between the valley fold lines V (fold lines 42, 43) near both ends 31A, 31B in the width direction (Y direction) of the handle structure 31, which curve inward in the width direction (Y direction). Furthermore, one valley fold line V is arranged between the two mountain fold lines M. As a result, in the third embodiment, three valley fold lines V (fold lines 41, 42, 43) and two mountain fold lines M (fold lines 44, 45) are arranged alternately.

[0086] In the handle structure 31 of the third embodiment, the configuration and effects common to the handle structure 31 of the first embodiment can be obtained with this configuration.

[0087] Furthermore, in the handle structure 31 of the third embodiment, the alternating arrangement of three valley fold lines V (fold lines 41, 42, 43) and two mountain fold lines M (fold lines 44, 45) allows the handle structure 31 to deform significantly in an accordion-like manner. As a result, even if the width W of the handle structure 31 is made significantly larger, when the handle structure 31 is grasped, the width W of the handle structure 31 shrinks to match the size of the hand, thus providing a handle structure 31 that is even stronger and easier to grasp. [Examples]

[0088] The present invention will be described in more detail below with reference to examples. The examples were evaluated by the following tests.

[0089] [Test specimen] A composite packaging body 100 was fabricated by wrapping a first strip 20 made of polypropylene, 70 mm wide and 30 μm thick, around a composite body of multiple cartons 10 in a first direction (Y and Z directions), and wrapping a second strip 30 made of polypropylene similar to the first strip 20 around a second direction (X and Z directions) perpendicular to the first direction (Y and Z directions). The portion where the second strip 30 intersects with the first strip 20 at the top surface 11 of the composite body 10 was defined as a test specimen (handle structure) 31.

[0090] [Ease of gripping] The ease of gripping the handle structure when holding the test specimen was checked. Five people checked the ease of gripping according to the following criteria, and the average value was used for evaluation. An evaluation of A, B, or C was considered good, while a D was considered poor. <Evaluation Criteria> 5: Satisfied 4: Somewhat satisfied 3: Neither 2: Not very satisfied 1: Not satisfied <Result> A: 4.6 or higher B: 4.1~4.5 C:3.6~4.0 D: 3.5 or less

[0091] [Portability] The stability (degree of displacement) of the carton was checked after walking for one minute while holding the test specimen. Five people checked according to the following criteria, and the evaluation was based on the average value. A, B, and C ratings were considered good, while a D rating was considered poor. <Evaluation Criteria> 5: Satisfied 4: Somewhat satisfied 3: Neither 2: Not very satisfied 1: Not satisfied <Result> A: 4.6 or higher B: 4.1~4.5 C:3.6~4.0 D: 3.5 or less

[0092] Examples and comparative examples will be described below.

[0093] [Example 1] As shown in Figure 4, the three fold lines (fold lines 41, 42, and 43) constituting the fold line 40 were all formed in a straight line in the width direction (Y direction) of the handle structure 31 (number of fold lines: 3, both ends of fold lines: straight). The ease of gripping was evaluated for the test specimen of Example 1. The results are shown in Table 1.

[0094] [Example 2] The test specimen was prepared and evaluated in the same manner as in Example 1, except that the valley fold lines V (fold lines 42, 43) near both ends 31A and 31B in the width direction (Y direction) of the handle structure 31 curved inward in the width direction (Y direction) (number of fold lines: 3, both ends of fold lines: curved). The results are shown in Table 1.

[0095] [Example 3] As shown in Figure 5, a test specimen was prepared and evaluated in the same manner as in Example 1, except that a fold line 44 was formed between fold line 41 and fold line 42 (a fold line located on one end 31A in the width direction (Y direction) of the handle structure 31), and a fold line 45 was formed between fold line 41 and fold line 43 (a fold line located on one end 31B in the width direction (Y direction) of the handle structure 31) (number of fold lines: 5, both ends of fold lines: curved). The results are shown in Table 1.

[0096] [Comparative Example 1] As shown in Figure 6, a test specimen was prepared and evaluated in the same manner as in Example 1, except that no fold lines were formed on the handle structure 31 (number of fold lines: 0, both ends of fold lines: -). The results are shown in Table 1.

[0097] [Table 1]

[0098] Table 1 shows that test specimens with three or five fold lines were easier to grasp (Examples 1-3). Furthermore, test specimens with curved ends on both fold lines showed improved ease of grasping (Examples 2 and 3).

[0099] In contrast, the test specimen without any fold lines (0 fold lines) was poorly gripped (Comparative Example 1).

[0100] These results indicate that a handle structure composed of a portion of the second band, with at least one fold line extending in the longitudinal direction of the handle structure, is easy to grip even with a reduced amount of resin.

[0101] Furthermore, for some embodiments (only Embodiment 3), the relationship between the width of the handle structure 31 (handle width), ease of gripping, and safety of carrying was confirmed in the experimental examples shown below.

[0102] [Experimental Example 1] In Example 3, the handle width was set to 50 mm. The results are shown in Table 2.

[0103] [Experimental Example 2] Except for using Example 3 as is, the evaluation was the same as in Experimental Example 1. The results are shown in Table 2.

[0104] [Experimental Example 3] In Example 3, the evaluation was the same as in Experimental Example 1, except that the handle width was set to 90 mm. The results are shown in Table 2.

[0105] [Experimental Example 4] In Example 4, the evaluation was the same as in Experimental Example 1, except that the handle width was set to 110 mm. The results are shown in Table 2.

[0106] [Table 2]

[0107] Table 2 shows that handles with a width of 50mm to 110mm offered good grip. Furthermore, handles with a width of 70mm to 110mm offered good safety during transport.

[0108] Although embodiments of the present invention have been described above, the present invention is not limited to any particular embodiment, and various modifications and changes are possible within the scope of the invention as described in the claims. [Explanation of Symbols]

[0109] 100 collective packaging 10. Sanitary supplies storage boxes (assembly) 11 Top surface 12. Base 13 Side view 14 Side 15 End face 16 End face 20, 21, 22 First band 30 Second Band 31 Handle structure Fold lines 40, 41, 42, 43, 44, 45 M mountain fold line V-shaped fold line

Claims

1. A handle structure for a collective packaging body in which a collection of multiple sanitary product storage boxes is wrapped in film or a sheet, The aforementioned film or sheet is A first band wrapped around the aggregate in a first direction, It is composed of a second band wrapped around the first band in a second direction perpendicular to the first direction of the aggregate, The aforementioned handle structure is, Composed of a part of the second band, A handle structure having at least one fold line extending in the longitudinal direction of the handle structure.

2. The handle structure according to claim 1, wherein the at least one fold line is a valley fold line.

3. The aforementioned fold line is, At least one mountain fold line, The handle structure according to claim 1, comprising the mountain fold line and at least two valley fold lines arranged at predetermined intervals in the width direction perpendicular to the longitudinal direction of the handle structure.

4. The handle structure according to claim 3, wherein the fold line near at least one end in the width direction is a valley fold line.

5. The handle structure according to claim 4, wherein the valley fold line curves inward in the width direction.

6. The handle structure according to any one of claims 1 to 5, wherein the handle structure is made of polypropylene resin.

7. The handle structure according to claim 6, wherein the width of the handle structure is 60 mm or more and 120 mm or less.

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