JP7568189B2 - Seat storage box - Google Patents

Description

The present invention relates to a sheet storage box.

A sheet storage box is structured so that tissue paper or other sheets are stored in a box (also called a carton) made of cardboard or the like, and are removed from an opening on the top of the box. Conventional sheet storage boxes are bulky if disposed of as is after use, so they are designed to be disassembled after use (see, for example, Patent No. 4142238).

Patent No. 4142238

The objective of the present invention is to provide a sheet storage box that places less strain on the hands and fingers when dismantling.

The sheet storage box according to the first aspect has a box body in which a plurality of sheets are removably stored, and an opening for dismantling the box body, the opening being formed on at least one surface constituting the box body, and at least a portion of the periphery of the opening being corrugated. In this specification, the box body is a container in which sheets are stored. Removably storing sheets means that the sheets can be removed from an opening formed in the box body.

The opening is a trigger into which a finger or fingertip (hereinafter referred to as a finger or the like) is inserted to dismantle the box after use of the sheet storage box. "At least one surface" refers to one or more surfaces among the multiple surfaces that make up the box. The periphery of the opening corresponds to an edge of a portion of the surface in which the opening is formed. "At least a portion of the periphery of the opening" refers to all or a portion of the periphery of the opening. "Wave-shaped" refers to a shape in which curved concave and convex portions are repeatedly and continuously formed.

In the first aspect, by making at least a portion of the periphery of the opening for dismantling the box corrugated, fingers etc. that touch the corrugated portion of the periphery of the opening come into contact only with the convex curves that make up the corrugation. This reduces the discomfort felt by fingers etc. that touch the periphery of the opening when dismantling the box. Also, even if fingers etc. are pressed against the periphery of the opening when dismantling the box, the burden on the fingers etc. can be reduced.

In the sheet storage box according to the second aspect, the at least a portion is curved. Curved means that at least a portion of the periphery of the opening is bent so as to be convex outward from the opening. In the second aspect, at least a portion of the periphery of the opening is curved, so that fingers, etc. can smoothly touch the periphery of the opening. Therefore, according to the second aspect, the discomfort felt by fingers, etc. touching the periphery of the opening when dismantling the box is further reduced, and the burden on fingers, etc. is further reduced.

In the sheet storage box according to the third aspect, the other part of the periphery of the opening other than the at least one part is straight. The other part other than the at least one part refers to all or part of the periphery of the opening excluding at least the part that is formed in a corrugated shape.

In the third aspect, by making the other part of the periphery of the opening straight, fingers inserted into the opening are easily caught on the straight periphery. Therefore, in the third aspect, the box body is easily dismantled.

In the sheet storage box according to the fourth aspect, the other part is configured by folding back a part of the one surface. In this specification, "configured by folding back a part of one surface" means that the other part of the periphery of the opening corresponds to a part of the surface of the box body in which the opening is formed that is folded back.

In the fourth aspect, another part of the periphery of the opening is formed by folding back a part of the surface of the box, so that fingers inserted into the opening can be stably hooked onto a part of the periphery that is formed in a straight line. Therefore, according to the fourth aspect, the discomfort of fingers touching the periphery of the opening is reduced, and the work of dismantling the box is made easier while reducing the burden on the fingers.

In the sheet storage box according to the fifth aspect, the other part is corrugated. In the fifth aspect, the other part formed in a straight line around the periphery of the opening is corrugated, so that fingers etc. touching the straight line around the periphery of the opening can only touch the convex curves that make up the corrugation. Therefore, when dismantling the box, it is possible to reduce the discomfort felt by fingers etc. that are hooked on one part of the periphery of the opening. Also, even if a strong force is applied to the part of the periphery around which fingers etc. are hooked when dismantling the box, it is possible to reduce the burden on the fingers etc.

In the sixth aspect, the sheet storage box has a tearing score line formed on at least one surface, which forms the opening when the box is torn, and the cut of the tearing score line is wavy.

In this specification, a splitting score line refers to a score line where cuts and ties (the uncut portion between two cuts) are arranged alternately, and when a tie breaks, the adjacent cuts become a continuous cut. The waveform that constitutes the cut of the splitting score line corresponds to the waveform that constitutes at least a portion of the periphery of the opening that is formed in the top surface after the splitting score line splits.

In the sixth aspect, the cut of the tearing score line is wavy, and the wavy shape constituting the cut of this tearing score line corresponds to the wavy shape constituting at least a part of the periphery of the opening. Therefore, in the sixth aspect, by tearing the tearing score line, an opening for dismantling the box can be formed on at least one surface constituting the box.

In addition, in the sixth aspect, an opening is formed in at least one surface constituting the box by tearing the tearing score line. Therefore, in the sixth aspect, dust is less likely to enter the box containing the sheets while the sheet storage box is in use (before the tearing score line tears).

In the sheet storage box according to the seventh aspect, the at least one surface is a side surface of the box body. The side surface of the box body refers to the surfaces of the box body excluding the top and bottom surfaces. In the seventh aspect, the opening is formed on the side surface of the box body, and since an opening for dismantling the box body is not formed on the top surface, the opening for dismantling can be provided in an inconspicuous position on the box body. This makes it possible to prevent the box body from being dismantled by mistake when using the sheet storage box.

In addition, in the seventh aspect, since an opening for dismantling the box is not formed on the bottom surface, it is possible to avoid a situation in which it is difficult to find the opening for dismantling the box when dismantling the box. Therefore, it is easy to dismantle the box after using the sheet storage box.

In the sheet storage box according to the eighth aspect, the at least one surface is the bottom surface of the box body. The bottom surface of the box body refers to the surface on which the sheet storage box is placed. In the eighth aspect, an opening is formed in the bottom surface of the box body, so that an opening for dismantling can be provided in an inconspicuous position on the box body. This makes it possible to prevent the box body from being dismantled by mistake when the sheet storage box is in use.

In the eighth aspect, an opening for dismantling the box can be provided on the bottom surface of the box, thereby increasing the area of the opening for dismantling. This increases the area into which fingers, etc. can be inserted when dismantling the box, making it easier to dismantle the box.

In the eighth aspect, an opening for dismantling the box is provided on the bottom of the box, so that if the top of the sheet storage box is provided with an outlet with a plastic film attached, the plastic film can be removed from the box by inserting fingers or the like through the opening on the bottom. This makes it easy to separate the box and the plastic film when dismantling the box.

In the sheet storage box according to the ninth aspect, the area of the opening is 10% to 80% of the area of the bottom surface. In this specification, the area of the opening refers to the area of the opening that is flush with the bottom surface of the box. The area of the bottom surface refers to the area of the entire bottom surface.

In the ninth aspect, by making the area of the opening 10% to 80% of the area of the bottom surface, it is possible to provide an opening for dismantling in the box body that is large enough for fingers to be inserted. This makes it possible to provide a sheet storage box that is easy to dismantle.

In the sheet storage box according to the tenth aspect, the box body is made of base paper, and the edges of the base paper exposed to the outside of the box body are corrugated. In this specification, base paper refers to a stiff, thick paper that is used as a material for assembling the box body. The edges of the base paper exposed to the outside of the box body refer to the edges of the base paper that appear on the exterior of the box body when the box body is assembled with the base paper.

In the tenth aspect, by corrugating the edge of the base paper exposed on the outside of the box body, it is possible to reduce the burden on the fingers, etc., even if the fingers touch the edge of the base paper exposed around the opening for dismantling the box body when dismantling the box body. In addition, it is possible to reduce the burden on the fingers, etc., not only when dismantling the box body, but also when touching or gripping the sheet storage box before or during use of the sheet storage box.

In the sheet storage box according to the eleventh aspect, the period of the waveform is 0.1 mm or more and 6 mm or less. In this specification, the period of the waveform refers to the distance between two adjacent convex portions or the distance between two adjacent concave portions of the waveform. A period of the waveform of 0.1 mm or more and 6 mm or less indicates that the scale of the waveform is minute.

In the eleventh aspect, the period of the waveform is set to 0.1 mm or more and 6 mm or less, thereby reducing the distance between the convex or concave portions of the waveform. This further reduces the discomfort felt by fingers and other parts of the body touching the periphery of the opening when dismantling the box, and further reduces the strain on the fingers and other parts of the body.

In addition, in the eleventh aspect, the spacing between the convex or concave portions around the edge of the opening is reduced, which makes it possible to prevent deterioration in the appearance (or appearance) of the sheet storage box caused by making the edge of the opening corrugated.

In the twelfth embodiment, the period of the waveform of the sheet storage box is at least twice the wave height of the waveform. In this specification, the wave height of the waveform refers to the vertical distance from the top of the convex part to the bottom of the concave part of the waveform.

In the twelfth aspect, by making the period of the waveform at least twice the wave height of the waveform, the inclination of the convex parts of the waveform formed on the periphery of the opening becomes gentler, and the periphery of the opening becomes smoother. Therefore, when dismantling the box, the discomfort felt by fingers and other hands touching the periphery of the opening is further reduced, and the strain on the fingers and fingertips is further reduced.

In addition, in the twelfth aspect, the inclination of the corrugated convex portion formed around the periphery of the opening is gentle, which makes it possible to prevent deterioration of the appearance (or appearance) of the sheet storage box caused by making the periphery of the opening corrugated.

According to one aspect of the present invention, it is possible to provide a sheet storage box that places less strain on the hands and fingers when dismantling it.

FIG. 2 is a diagram showing a sheet storage box according to the first embodiment. FIG. 2 is a development view of the sheet storage box according to the first embodiment. FIG. 2 is a diagram showing the sheet storage box of the first embodiment as viewed from the side (one end surface). FIG. 13 is a diagram showing an example of a dismantling opening. FIG. 5 is a diagram showing the cleavage cut line in FIG. 4 cleaved. FIG. 13 is a diagram showing a state in which a fingertip is inserted into the opening. FIG. FIG. 13 is a diagram showing an example of a waveform of an opening. FIG. 13 is a diagram showing another example of the waveform of the opening. FIG. 13 is a diagram showing yet another example of the waveform of the opening. FIG. 13 is a diagram showing a first modified example of a dismantling opening. FIG. 12 is a view showing the state where the tearing score line is torn in the opening of FIG. 11 . FIG. 13 is a diagram showing a second modified example of the dismantling opening. FIG. 14 is a view showing the state in which the tearing score line in the opening of FIG. 13 has been torn. FIG. 11 is a side view (end surface) of the seat storage box of the second embodiment; 13A and 13B are diagrams illustrating an example of an opening for dismantling in a sheet storage box according to a second embodiment. FIG. 17 is a diagram showing a state in which the splitting score line in FIG. 16 has been split. FIG. 13 is a bottom view of the sheet storage box of the third embodiment. 13 is a diagram showing a state in which the tearing score line is torn in the sheet storage box of the third embodiment. FIG.

The embodiment of the present invention will be described in detail with reference to the drawings. Note that in each drawing, common parts may be given the same reference numerals and explanations may be omitted. Also, in each drawing, the scale of each component may differ from the actual scale.

In this specification, a three-dimensional Cartesian coordinate system in three axial directions (X, Y, and Z directions) is used, with the longitudinal direction of the sheet storage box defined as the X direction, the lateral direction defined as the Y direction, and the height direction defined as the Z direction. Additionally, "upper" refers to the upper side of the top surface of the box body in the height direction (Z direction) of the sheet storage box, and "lower" refers to the lower side of the bottom surface of the box body in the height direction (Z direction) of the sheet storage box.

Figure 1 shows a sheet storage box of the first embodiment, Figure 2 shows an exploded view of the sheet storage box of the first embodiment, and Figure 3 shows the sheet storage box of the first embodiment as seen from the side (one end face). In Figure 2, the symbols G1, G2, and G3 indicate the positions where adhesive is applied when the sheet storage box is manufactured.

The sheet storage box 100 according to the first embodiment has a box body 10 in which a plurality of sheets S (sheet stack SL) are removably stored, and an opening for dismantling the box body 10 (hereinafter referred to as the dismantling opening).

The box 10 is a container in which the sheet S is stored. In this embodiment, as shown in FIG. 1, the box 10 is formed in a substantially rectangular parallelepiped (including a cube) shape. Specifically, the box 10 has a top surface 11, a bottom surface 12, side surfaces 13 and 14, and side surfaces (end surfaces) 15 and 16. The top surface 11 and the bottom surface 12 face each other in the height direction (Z direction), the side surfaces 13 and 14 face each other in the short direction (Y direction), and the end surfaces 15 and 16 face each other in the longitudinal direction (X direction).

As shown in FIG. 2, the box 10 has a patch 17 with adhesive G1 attached to the edge 12C of the bottom surface 12, and this patch 17 is joined to the edge 13C of the side surface 13. The end surface 15 is composed of a top surface flap 151, a bottom surface flap 152, a side surface flap 153, and a side surface flap 154, and the end surface 16 is composed of a top surface flap 161, a bottom surface flap 162, a side surface flap 163, and a side surface flap 164.

Specifically, as shown in FIG. 2, top surface side flaps 151, 161 extend from edges 11A, 11B of the top surface 11, and bottom surface side flaps 152, 162 extend from edges 12A, 12B of the bottom surface 12. In addition, side surface side flaps 153, 163 extend from edges 13A, 13B of the side surface 13, and side surface side flaps 154, 164 extend from edges 14A, 14B of the side surface 14.

The edges 11A, 11B of the top surface 11, the edges 12A, 12B of the bottom surface 12, the edges 13A, 13B of the side surface 13, and the edges 14A, 14B of the side surface 14 have folds (not shown) that allow the top surface flaps 151, 161 to be folded relative to the top surface 11, the bottom surface flaps 152, 162 to the bottom surface 12, the side surface flaps 153, 163 to the side surface 13, and the side surface flaps 154, 164 to the side surface 14 to be folded relative to the side surface.

A pair of adhesives G3 are provided on the 152B and 152C sides of the edge 152A of the bottom side flap 152, and on the 162B and 162C sides of the edge 162A of the bottom side flap 162. An adhesive G2 is provided on the 153C and 154C sides of the side side flaps 153 and 154, and on the 163C and 164C sides of the side side flaps 163 and 164 (Figure 2).

The bottom side flap 152 is joined to the side side flaps 153, 154 via adhesive G2, and the bottom side flap 162 is joined to the side side flaps 163, 164 via adhesive G2. In this state, when the top side flaps 151, 161 are joined to the bottom side flaps 152, 162, the end faces 15, 16 are formed (Figures 1 and 2).

In addition, on the end faces 15 and 16, the top surface side flaps 151 and 161 are entirely exposed. In addition, the bottom surface side flaps 152 and 162 are concealed in the portions that overlap with the top surface side flaps 151 and 161, and the portions other than the overlapping portions are exposed. Furthermore, the side surface side flaps 153 and 154 are concealed (Figures 2 and 3).

In addition, on the end face 15, the side flaps 153, 154 are arranged such that the edges 153A, 154A face each other in the short direction (Y direction), the edges 153B, 154B are located on the top face 11 side, and the edges 153C, 154C are located on the bottom face 12 side. In addition, on the end face 16, the side flaps 163, 164 are arranged such that the edges 163A, 164A face each other in the short direction (Y direction), the edges 163B, 164B are located on the top face 11 side, and the edges 163C, 164C are located on the bottom face 12 side (Figure 3).

The material of the box body 10 is not limited, and for example, base paper J made mainly of pulp is used. Here, base paper refers to a hard, thick paper that is used as a material for assembling the box body 10. The pulp composition of the base paper can be a known composition for boxes. For example, the pulp blending ratio 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.

The dimensions of the box 10 are not limited and can be determined based on the amount and dimensions of the sheets S (sheet stack SL) to be stored. For example, the dimensions of the box 10 can be such that the length in the longitudinal direction (X direction) of the box 10 is 100 mm or more and 300 mm or less, and preferably 150 mm or more and 280 mm or less. The width in the lateral direction (Y direction) can be 100 mm or more and 150 mm or less, and preferably 100 mm or more and 130 mm or less. Furthermore, the height in the height direction (Z direction) can be 30 mm or more and 150 mm or less, and preferably 40 mm or more and 100 mm or less.

The basis weight of the box 10 is not limited, but from the viewpoint of ensuring sufficient strength to withstand use, the basis weight of the base paper can be 200 g/m ² or more and 500 g/m ² or less, preferably 230 g/m ² or more and 450 g/m ² or less, and more preferably 270 g/m ² or more and 430 g/m ² or less. In this specification, the basis weight is measured in accordance with the basis weight measurement method of JIS P 8124 (1998).

The thickness of the box body 10 is not particularly limited, and the paper thickness measured under the environment of JIS P 8111 (1998) can be used. For example, if the box body 10 is made of coated cardboard, the paper thickness of the box body 10 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.

In this embodiment, the multiple sheets S stored in the box 10 are configured as a sheet stack SL in which multiple sheets S are stacked in the height direction (Z direction).

The material of the sheet S is not particularly limited, and may be, for example, a sheet of paper, nonwoven fabric, cloth, or the like, and is preferably a paper sheet (hereinafter referred to as a paper sheet). The pulp composition may be a known composition for paper sheets. For example, the pulp content may be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

The basis weight of the sheet S is not particularly limited, but is preferably 5 g/ ^m2 or more and 80 g/m2 ^{or less} in the case of paper, and 20 g/m2 ^{or more} and 100 g/m2 or ^less in the case of nonwoven fabric, depending on the number of plies. The basis weight can be measured in accordance with the provisions of JIS P 8124.

The thickness of the sheet S is not particularly limited, and the paper thickness measured under the environment of JIS P 8111 (1998) can be used. For example, the thickness of the paper sheet constituting the sheet S can be 50 μm or more and 500 μm or less per two plies, and is preferably 60 μm or more and 330 μm or less.

The use of the sheet S is not limited to tissue paper, and it can be applied to products such as toilet paper, kitchen paper, paper towels, disposable diapers for babies or elderly care, sanitary napkins, etc. Sanitary thin paper such as tissue paper also includes sanitary thin paper containing moisturizing ingredients (for example, lotion tissue, etc.). The sheet S can be applied to industrial, household, and portable uses. Of these, household tissue paper is preferably used in the sheet storage box 100 of this embodiment.

The number of plies of the sheet S can be one or more, preferably one ply, and more preferably two plies (two plies stacked). The shape of the sheet S is not particularly limited, and it is preferable that, for example, the shape of the two-ply sheet when folded is rectangular in a plan view.

The form of the sheet stack SL is not particularly limited, and examples include a sheet stack SL in which each sheet S is folded and stacked in a staggered manner (a so-called pop-up type sheet stack SL), a sheet stack in which multiple sheets (or multiple sets) of sheets S are simply stacked, and a sheet stack in which each sheet S is folded and stacked. From the viewpoint of pulling out the sheets S one by one or one set at a time, the form of the sheet stack SL is preferably a pop-up type sheet stack SL.

For example, in the case of tissue paper, the dimensions of the sheet stack SL are: length in the longitudinal direction (X direction) of 150 mm or more and 250 mm or less, length in the transverse direction (Y direction) of 60 mm or more and 130 mm or less, and height in the height direction (Z direction) of 20 mm or more and 110 mm or less. Such sheet stacks can be manufactured, for example, by a rotary or multi-stand interfolder.

In the sheet storage box 100 of this embodiment, the sheets S are stored in a removable manner in the box body 10. Specifically, an outlet is formed in the box body 10, and the sheets S (sheet stack SL) can be removed from this outlet. In this embodiment, a first opening 20 is formed on the top surface 11 of the box body 10 as an outlet for the sheets S, with a given length in the longitudinal direction (X direction) and a given width in the lateral direction (Y direction) (FIGS. 1 and 2).

In addition, in the longitudinal direction (X direction), the length of the first opening 20 is 40% to 95% of the length of the top surface 11, preferably 45% to 90%, and more preferably 50% to 85%. Here, the length of the top surface 11 is the entire length of the top surface 11 along the longitudinal direction (X direction), and the length of the first opening 20 is the length of the first opening 20 along the longitudinal direction (X direction).

The width of the first opening 20 in the short direction (Y direction) is 10% to 85% of the width of the top surface 11 in the short direction (Y direction), preferably 15% to 70%, and more preferably 20% to 60%. Here, the width 1 of the top surface 11 is the total width of the top surface 11 along the short direction (Y direction), and the width of the first opening 20 is the dimension at which the width of the first opening 20 is maximum along the longitudinal direction (X direction) (the maximum width of the central portion 21 or both ends 22, 23).

In this embodiment, the width of the first opening 20 increases from the center 21 side in the longitudinal direction (X direction) of the first opening 20 toward both ends 22, 23 in the longitudinal direction (X direction). In this embodiment, the width of the first opening 20 in the lateral direction (Y direction) increases in the lateral direction (Y direction) as it progresses from the center 21 side of the first opening 20 to both ends 22, 23 along the longitudinal direction (X direction) (Figs. 1 and 2).

In this embodiment, both ends 22, 23 of the first opening 20 are curved. Here, "both ends 22, 23 are curved" means that the periphery E1 of the first opening 20 is curved so as to be convex toward the outside of the first opening 20 at both ends 22, 23 of the first opening 20.

In this embodiment, the width of the first opening 20 expands in the short-side direction (Y direction) at the center 21 in the longitudinal direction (X direction) of the first opening 20. In this embodiment, the width in the short-side direction (Y direction) at the center 21 of the first opening 20 expands toward the side surfaces 13 and 14 along the short-side direction (Y direction) (Figure 2).

The length of the central portion 21 of the first opening 20 in the longitudinal direction (X direction) is 1% to 40% of the length of the top surface 11 in the longitudinal direction (X direction), preferably 5% to 30%, and more preferably 10% to 20%. The width of the central portion 21 of the first opening 20 in the transverse direction (Y direction) is 10% to 40% of the width of the top surface 11 in the longitudinal direction (X direction), preferably 15% to 35%, and more preferably 20% to 30% (see FIG. 2).

In this embodiment, the central portion 21 of the first opening 20 is curved in the short side direction (Y direction). Here, the central portion 21 being curved in the short side direction (Y direction) means that the periphery E1 of the first opening 20 is curved so as to be convex outward in the short side direction (Y direction) of the first opening 20 at the central portion 21 in the longitudinal direction (X direction).

The sheet storage box 100 according to this embodiment has a tearing score line M1 formed on the top surface 11, which forms a first opening 20 when torn open. Here, the tearing score line indicates a score line where cuts and ties (uncut portions between two cuts) are arranged alternately, and when a tie is broken, the adjacent cuts on both sides become a continuous cut.

In addition, the length of each cut in the tearing cut line M1 can be 0.3 mm or more and 40 mm or less, preferably 0.5 mm or more and 35 mm or less, and more preferably 1 mm or more and 30 mm or less. Also, the length of each tie can be 0.3 mm or more and 2.5 mm or less, preferably 0.5 mm or more and 1.5 mm or less, and more preferably 0.8 mm or more and 1.2 mm or less.

In this embodiment, second openings 30, 40 for splitting the split score line M1 are formed in a portion 11C of the top surface 11 surrounded by the split score line M1. The portion 11C of the top surface 11 occupies an area less than half of the top surface 11, and is a portion where a first opening 20 is formed in the top surface 11 when the split score line M1 splits (FIGS. 1 and 2). The second openings 30, 40 form a trigger for splitting the split score line M1.

The second openings 30, 40 are formed at both ends in the longitudinal direction (X direction) of the part 11C of the top surface 11. Here, the both ends 22, 23 in the longitudinal direction (X direction) of the part 11C of the top surface 11 correspond to the both ends 22, 23 in the longitudinal direction (X direction) of the first opening 20 formed in the top surface 11 when the part 11C of the top surface 11 is cleaved along the cleavage cut line M1.

In this embodiment, the second openings 30, 40 curve from the center 21 side in the longitudinal direction (X direction) of the first opening 20 to both ends 22, 23 in the longitudinal direction (X direction). Here, curving from the center 21 side in the longitudinal direction (X direction) of the first opening 20 to both ends 22, 23 in the longitudinal direction (X direction) means that the periphery E2 of the second openings 30, 40 curves so as to be convex toward the outside in the longitudinal direction (X direction) of the first opening 20 (FIGS. 1 and 2).

In the sheet storage box 100 according to this embodiment, a tearing score line M2 along which the second openings 30, 40 are formed when the box is torn open is formed on a portion 11C of the top surface 11. In the tearing score line M2, the length of each cut can be 0.3 mm or more and 40 mm or less, preferably 0.5 mm or more and 35 mm or less, and more preferably 1 mm or more and 30 mm or less. Also, the length of each tie can be 0.3 mm or more and 2.5 mm or less, preferably 0.5 mm or more and 1.5 mm or less, and more preferably 0.8 mm or more and 1.2 mm or less.

In the sheet storage box 100 of this embodiment, an opening for dismantling the box body 10 is formed on at least one surface constituting the box body 10. Specifically, third openings 50, 60 are formed on the side surfaces (end surfaces) 15, 16 of the box body 10 (FIGS. 1 and 2). Here, the openings (third openings 50, 60) are used by inserting fingers or fingertips (hereinafter referred to as fingers, etc.) F, and serve as a trigger when dismantling the box body 10 after use of the sheet storage box 100.

The "at least one surface" refers to one or more surfaces among the multiple surfaces that constitute the box body 10. In this embodiment, the at least one surface is the side surface of the box body 10. Here, the side surface of the box body 10 refers to the surfaces excluding the top surface 11 and bottom surface 12 of the box body 10. In this embodiment, the third openings 50, 60 are formed in the end faces 15, 16 of the side surface of the box body 10 (Figs. 2 and 3).

Specifically, the third opening 50 is formed in the bottom side flap 152 near the edge 151A between the edge 151A of the top side flap 151 and the bottom surface 12, and between the edge 153A of the side side flap 153 and the edge 154A of the side side flap 154. The third opening 60 is formed in the bottom side flap 162 near the edge 161A between the edge 161A of the top side flap 161 and the bottom surface 12, and between the edge 163A of the side side flap 163 and the edge 164A of the side side flap 164 (Figure 3).

Figure 4 shows an example of an opening for dismantling. In the sheet storage box 100 of this embodiment, as shown in Figure 4, at least a portion of the periphery E3, E4 of the third opening 50, 60 is corrugated W1. Here, the periphery E3, E4 of the third opening 50, 60 corresponds to a portion 15A, 16A of the end surface 15, 16 in which the third opening 50, 60 is formed.

In addition, at least a portion of the periphery E3, E4 of the third opening 50, 60 represents all or a portion of the periphery E3, E4 of the third opening 50, 60, and in this embodiment, a portion of the periphery E3, E4 of the third opening 50, 60 becomes the first portion 51, 61 (Fig. 3). The waveform W1 represents a shape in which curved convex portions B and concave portions D are repeatedly and continuously arranged (Fig. 8).

In the sheet storage box 100 according to this embodiment, the tearing score lines 70, 80 that form the third openings 50, 60 when torn are formed on at least one surface (end surfaces 15, 16), and the cuts C1 of the tearing score lines 70, 80 are wavy W1.

In this specification, the splitting score lines 70, 80 refer to score lines where cuts C1 and ties T1 (uncut portions between two cuts C1) are alternately arranged, and when a tie T1 breaks, the adjacent cuts C1 become continuous cuts. The waveform W1 that constitutes the cut C1 of the splitting score lines 70, 80 corresponds to the waveform W1 that constitutes at least a portion (first portion 51, 61) of the periphery E3, E4 of the opening (third opening 50, 60) that is formed in the end faces 15, 16 after the splitting score lines 70, 80 split.

In addition, in the tearing score lines 70, 80, the length of each cut C1 can be 0.3 mm or more and 40 mm or less, preferably 0.5 mm or more and 35 mm or less, and more preferably 1 mm or more and 30 mm or less. Also, the length of each tie T1 can be 0.3 mm or more and 2.5 mm or less, preferably 0.5 mm or more and 1.5 mm or less, and more preferably 0.8 mm or more and 1.2 mm or less.

In this embodiment, as shown in Figure 2, the tearing score line 70 is composed of a channel portion 71 and a curved portion 72, and is formed on the bottom side flap 152 of the end face 15. The third opening 50 corresponds to the portion surrounded by the channel portion 71 and the curved portion 72 of the tearing score line 70 (part 15A of the end face 15) (Figures 2 and 4). The curved portion 72 of the tearing score line 70 corresponds to part of the periphery E3 of the third opening 50 (first portion 51) (Figures 2 to 4).

The splitting score line 80 is composed of a channel portion 81 and a curved portion 82, and is formed on the bottom side flap 162 of the end face 16. The third opening 60 corresponds to the portion surrounded by the channel portion 81 and the curved portion 82 of the splitting score line 80 (part 16A of the end face 16) (Figs. 2 and 4). The curved portion 82 of the splitting score line 80 corresponds to part of the periphery E4 of the third opening 60 (first portion 61) (Figs. 2 to 4).

When the curved portion 72 of the tearing cut line 70 is torn, the third opening 50 forms a fragment L with a part of the channel portion 71 (second portion 52) as its base end, and the part 15A of the end face 15 is surrounded by a part of the periphery E3 of the third opening 50 (first portion 51) and a part of the edge 151A of the top side flap 151 (second portion 52) (Figure 5). When the curved portion 82 of the tearing cut line 80 is torn, the third opening 60 forms a fragment L with a part of the channel portion 81 as its base end, and the part 16A of the end face 16 is surrounded by a part of the periphery E4 of the third opening 60 (first portion 61) and a part of the edge 161A of the top side flap 161 (second portion 62).

Figure 6 shows the state in which a fingertip F is inserted into the third opening 60 in the end face 16 of the sheet storage box 100 of this embodiment, and Figure 7 shows the state in which the box body 10 is disassembled. As shown in Figure 6, when the fingertip F is inserted into the third opening 60 in the end face 16, the first portion 61 (the curved portion 72 of the tearing cut line 70) tears open, and an opening OP is formed.

As shown in FIG. 7, when the fingertip F inserted into the third opening 60 is hooked on the second portion 62 and pulled in the longitudinal direction (X direction) while being pulled upward in the height direction (Z direction), the top surface side flap 161 is peeled off from the bottom surface side flap 162, and at the same time, the bottom surface side flap 162 is also peeled off from the side surface side flaps 163 and 164.

In addition, in the bottom side flap 162 from which the top side flap 161 has been torn off, a notch R1 corresponding to the channel portion 81 of the torn tearing score line 80 and a notch R2 corresponding to the curved portion 82 are formed (FIG. 7). Meanwhile, parts of the bottom side flap 162 corresponding to the notches R1 and R2 are attached as broken pieces (not shown) to the back surface of the edge 161A side of the top side flap 161 torn off from the bottom side flap 162.

In the sheet storage box 100 according to this embodiment, the period P of the waveform W1 is 0.1 mm or more and 5 mm or less. In this specification, the period P of the waveform W1 refers to the distance between two adjacent convex portions B (convex portions B1, B2) or the distance between two adjacent concave portions D (concave portions D1, D2) of the waveform W1. The period P of the waveform W1 being 0.1 mm or more and 5 mm or less indicates that the scale of the waveform W1 is minute.

In the sheet storage box 100 according to this embodiment, the period P of the waveform W1 is at least twice the wave height H of the waveform W1. Here, the wave height H of the waveform W1 indicates the vertical distance H from the top of the convex portion B of the waveform W1 to the bottom of the concave portion D (FIG. 4).

In this embodiment, the waveform W1 of the periphery E3, E4 of the third opening 50, 60 may be, for example, a waveform W1 whose period P1 is about 5 times the wave height H1 (FIG. 5). Also, a waveform W1 whose period P2 is about 10 times the wave height H2 (FIG. 6). Furthermore, a waveform W1 whose period P3 is about 2 times the wave height H3 (FIG. 7).

As shown in FIG. 4, in the sheet storage box 100 according to this embodiment, at least a part (first portion 51, 61) of the periphery E3, E4 of the third opening 50, 60 is curved. Here, "curved" means that the first portion 51, 61 of the third opening 50, 60 is bent so as to be convex toward the outside of the third opening 50, 60. Specifically, in the case of the third opening 50, the first portion 51 of the periphery E3 is formed by a curve extending from the end 51A to the end 51B on the edge 151A of the top side flap 151, and this curve is arranged in a convex shape from the edge 151A of the top side flap 151 toward the bottom surface 12 (FIG. 4).

As shown in FIG. 4, the sheet storage box 100 according to this embodiment has at least a portion (first portion 51, 61) of the periphery E3, E4 of the opening (third opening 50, 60) other than the portion (second portion 52, 62) which is linear. Here, the other portion (second portion 52, 62) other than the at least a portion (first portion 51, 61) refers to all or a portion of the periphery E3, E4 of the opening (third opening 50, 60) excluding at least a portion (first portion 51, 61) which is formed into a waveform W1.

As shown in FIG. 4, the sheet storage box 100 according to this embodiment is configured by folding back a portion 15A, 16A of one face (end face 15, 16) to form another portion (second portion 52, 62). Here, "the portion 15A, 16A of one face (end face 15, 16)" means that the other portion (second portion 52, 62) of the periphery E3, E4 of the opening (third opening 50, 60) corresponds to the portion 15A, 16A of the face (end face 15, 16) of the box body 10 in which the opening (third opening 50, 60) is formed, which is folded back.

In the sheet storage box 100 according to this embodiment, the box body 10 is made of base paper J as described above, and the edges 13C, 151A, 151B, 151C, 152B, 152C, 161A, 161B, 161C, 162B, and 162C of the base paper J exposed to the outside of the box body 10 are corrugated W1. The edges of the base paper J exposed to the outside of the box body 10 refer to the edges 13C, 151A, 151B, 151C, 152B, 152C, 161A, 161B, 161C, 162B, and 162C of the base paper J that appear on the exterior of the box body 10 when the box body 10 is assembled with the base paper J.

At least a portion of the periphery E1 of the first opening 20 formed on the top surface 11 of the box body 10 may be corrugated. The corrugation of the periphery E1 of the first opening 20 can have the same period and wave height as the corrugation W1 of the peripheries E3, E4 of the third openings 50, 60 and each edge 13C of the base paper J described above. In addition, the tearing score line M1 along which the first opening 20 is formed when torn can have the same cut C1 and tie T1 as the tearing score lines 70, 80 along which the third openings 50, 60 are formed when torn described above.

In addition, at least a portion of the periphery E2 of the second openings 30, 40 for splitting the tearing score line M1 may be corrugated. The corrugation of the periphery E2 of the second openings 30, 40 can have the same period and wave height as the periphery E3, E4 of the third openings 50, 60 and the corrugation W1 of each edge 13C of the base paper J described above. In addition, the tearing score line M2 that forms the second openings 30, 40 when split can have the same cuts C1 and ties T1 as the tearing score lines 70, 80 that form the third openings 50, 60 when split described above.

The effects of the first embodiment will be described below. In the sheet storage box 100 of the first embodiment, as described above, by forming at least a part (first part 51, 61) of the periphery E3, E4 of the opening for dismantling the box body 10 (third opening 50, 60) into a corrugated W1, fingers F touching the part (first part 51, 61) formed in the corrugated W1 of the periphery E3, E4 of the opening for dismantling (third opening 50, 60) contacts only the convex part B (convex part B1, B2) of the curve constituting the corrugated W1. Therefore, when dismantling the box body 10, it is possible to reduce the discomfort of fingers F touching the periphery E3, E4 of the opening for dismantling (third opening 50, 60). In addition, even if the fingers F are pressed against the periphery E3, E4 of the opening for dismantling (third opening 50, 60) during dismantling of the box body 10, the burden on the fingers F can be reduced (FIGS. 1 to 7).

In this embodiment, as described above, at least a portion (first portion 51, 61) of the periphery E3, E4 of the opening for disassembly (third opening 50, 60) is curved, so that the fingers F can smoothly touch the periphery E3, E4 of the opening for disassembly (third opening 50, 60). Therefore, according to this embodiment, the discomfort felt by the fingers F touching the periphery E3, E4 of the opening for disassembly (third opening 50, 60) when disassembling the box 10 is further reduced, and the burden on the fingers F is further reduced (FIGS. 1 to 7).

In this embodiment, as described above, by making the other part (second part 52, 62) of the periphery E3, E4 of the opening for disassembly (third opening 50, 60) straight, the fingertip F inserted into the opening for disassembly (third opening 50, 60) can be easily caught on the part (second part 52, 62) of the periphery E3, E4 which is formed in a straight line. Therefore, in this embodiment, the disassembly work of the box body 10 is easy (Figs. 1 to 7).

In this embodiment, as described above, the other part (second part 52, 62) of the periphery E3, E4 of the opening for dismantling (third opening 50, 60) is formed by folding back the part 15A, 16A of the face (end face 15, 16) of the box body 10, so that the fingers F inserted into the opening for dismantling (third opening 50, 60) can be stably hooked on the part (second part 52, 62) of the periphery E3, E4 formed in a straight line. Therefore, according to this embodiment, the discomfort of the fingers F touching the periphery E3, E4 of the opening for dismantling (third opening 50, 60) is reduced, and the work of dismantling the box body 10 is made easier while reducing the burden on the fingers F.

In this embodiment, the cuts C1 of the tearing score lines 70, 80 are waveforms W1, and the waveforms W1 constituting the cuts C1 of the tearing score lines 70, 80 correspond to the waveforms W1 constituting at least a portion (first portions 51, 61) of the peripheries E3, E4 of the dismantling openings (third openings 50, 60). Therefore, in this embodiment, by tearing the tearing score lines 70, 80, a dismantling opening (third openings 50, 60) for dismantling the box body 10 can be formed in at least one surface (end surfaces 15, 16) constituting the box body 10 (FIGS. 1 to 4).

In addition, in this embodiment, the tearing score lines 70, 80 tear open, forming an opening for disassembly (third openings 50, 60) in at least one surface (end surface 15, 16) that constitutes the box body 10. Therefore, in this embodiment, dust is less likely to enter the box body 10 containing the sheet S (sheet stack SL) while the sheet storage box 100 is in use (before the tearing score lines 70, 80 tear open) (FIGS. 1 to 4).

In this embodiment, as described above, by setting the period P of the waveform W1 to 0.1 mm or more and 5 mm or less, the spacing between the convex portions B (convex portions B1, B2) or concave portions D (concave portions D1, D2) of the waveform W1 is reduced. This further reduces the discomfort felt by the fingers F touching the periphery E3, E4 of the disassembly openings (third openings 50, 60) when dismantling the box 10, and further reduces the strain on the fingers F (Figures 4 to 7).

In this embodiment, the openings for dismantling (third openings 50, 60) are formed on the side surfaces (end faces) 15, 16 of the box body 10, and because the openings for dismantling (third openings 50, 60) for dismantling the box body 10 are not formed on the top surface 11, the openings for dismantling (third openings 50, 60) can be provided in inconspicuous positions on the box body 10. This makes it possible to prevent the box body 10 from being dismantled accidentally when the sheet storage box 100 is in use (Figs. 1 to 3, 6, 7).

In addition, in this embodiment, the openings for dismantling the box 10 (third openings 50, 60) are not formed on the bottom surface 12, so it is possible to avoid a situation in which it is difficult to find the openings for dismantling (third openings 50, 60) when dismantling the box 10. Therefore, it is easy to dismantle the box 10 after using the sheet storage box 100 (Figures 1 to 3, 6, and 7).

In addition, in this embodiment, the spacing between the convex portions B (convex portions B1, B2) or concave portions D (concave portions D1, D2) of the periphery E3, E4 of the dismantling opening (third opening 50, 60) is reduced, thereby preventing deterioration in the appearance (or appearance) of the sheet storage box 100 caused by making the periphery E3, E4 of the dismantling opening (third opening 50, 60) corrugated W1 (Figures 4 to 7).

In this embodiment, by making the period P of the waveform W1 at least twice the wave height H of the waveform W1, the slope of the convex portion B (convex portions B1, B2) of the waveform W1 formed on the periphery E3, E4 of the opening for dismantling (third openings 50, 60) becomes gentler, and the periphery E3, E4 of the opening for dismantling (third openings 50, 60) becomes smoother. Therefore, when dismantling the box body 10, the discomfort of the fingers F touching the periphery E3, E4 of the opening for dismantling (third openings 50, 60) is further reduced, and the strain on the fingers or fingertips is further reduced (Figures 4 to 7).

In addition, in this embodiment, the inclination of the convex portions B (convex portions B1, B2) of the waveform W1 formed on the periphery E3, E4 of the opening for dismantling (third opening 50, 60) is gentle, which prevents deterioration of the appearance (or appearance) of the sheet storage box 100 caused by making the periphery E3, E4 of the opening for dismantling (third opening 50, 60) into the waveform W1 (Figures 4 to 7).

In this embodiment, by forming the edges 13C, 151A, 151B, 151C, 152B, 152C, 161A, 161B, 161C, 162B, and 162C of the base paper J exposed to the outside of the box body 10 into a corrugated shape W1, it is possible to reduce the burden on the fingers F even if the fingers F touch the edges 13C, 151A, 151B, 151C, 152B, 152C, 161A, 161B, 161C, 162B, and 162C of the base paper J exposed around the opening for disassembly (third openings 50 and 60) when dismantling the box body 10. In addition, it is possible to reduce the burden on the fingers F not only when dismantling the box body 10, but also when touching or gripping the sheet storage box 100 before or during use of the sheet storage box 100.

Figure 11 shows a first modified example of the opening for disassembly in the sheet storage box 100 of the first embodiment, and Figure 12 shows the state in which the tearing score line has been torn in the opening of Figure 11. In this example, another part (second part 52, 62) of the periphery E3, E4 of the third opening 50, 60 is corrugated W2. In this example, a part (first part 51, 61) of the periphery E3, E4 of the third opening 50, 60 is not corrugated.

The splitting score lines 70, 80 constituting the first portions 51, 61 of the third openings 50, 60 are cut along a line along which the cuts C2 and ties T2 (the uncut portions between two cuts C2) are alternately arranged, and when a tie T2 breaks, the adjacent cuts C2 on both sides become continuous cuts. In the splitting score lines 70, 80, the length of each cut C2 and the length of each tie T1 can be the same as when the cut C1 is wavy W1.

Figure 13 shows a second modified example of the opening for dismantling in the sheet storage box 100 of the first embodiment, and Figure 14 shows the state where the tearing score line has been torn in the opening of Figure 13. In this example, at least a part (first portion 51, 61) of the periphery E3, E4 of the third opening 50, 60 is a waveform W1, and another part (second portion 52, 62) of the periphery E3, E4 of the third opening 50, 60 is a waveform W2. The period and wave height of the waveform W2 can be the same as those of the waveform W1 described above.

In this embodiment, in both the first and second modified examples of the opening for disassembly, the other part (second part 52, 62) formed in a straight line of the periphery E3, E4 of the opening for disassembly (third opening 50, 60) is made into a waveform W2, so that the fingers F touching the straight line-formed part (second part 52, 62) of the periphery E3, E4 of the opening (third opening 50, 60) can only contact the curved convex part B (convex part B1, B2) that constitutes the waveform W2. Therefore, when disassembling the box body 10, it is possible to reduce the discomfort of the fingers F hooked on the part (second part 52, 62) of the periphery E3, E4 of the opening (third opening 50, 60). In addition, even if the fingers F are pressed against the part (second part 52, 62) of the periphery E3, E4 on which they are hooked when disassembling the box body 10, the burden on the fingers F can be reduced (FIGS. 11 and 12).

In this embodiment, as described above, when at least a portion of the periphery E1 of the first opening 20 formed on the top surface 11 of the box body 10 is made into a corrugated shape W1, the only part of the periphery E1 of the first opening 20 that comes into contact with the fingers is the convex part B of the corrugated shape W1, and the burden on the fingers is reduced when using the sheet storage box 100. In addition, the only part of the periphery E1 of the first opening 20 that the sheet S rubs against is the convex part B of the corrugated shape W1, and the sheet S is less likely to be damaged when the sheet S is removed. Furthermore, the sheet S being removed is more likely to be supported by the wavy convex part B formed on the periphery E1 of the first opening 20, and the sheet S is less likely to fall down (Figs. 1 and 2).

When removing sheets S from the outlet of a sheet storage box, the sheets S are likely to get stuck and break at both ends in the longitudinal direction of the outlet. In contrast, in this embodiment, the width of the first opening 20 that constitutes the outlet is wider from the center 21 side in the first direction (X direction) of the first opening 20 toward both ends 22, 23 in the first direction (X direction), so that the width of the first opening 20 that constitutes the outlet is wider at both ends 22, 23 than at the center 21 side in the first direction (X direction). Therefore, the sheets S are less likely to get stuck at both ends in the longitudinal direction of the outlet where the sheets S are likely to get stuck and break when removing the sheets S, and breakage can be suppressed (Figs. 1 and 2).

In this embodiment, as described above, both ends 22, 23 of the first opening 20 are curved, which reduces the resistance to the pulled-out sheets S at both ends of the outlet where the sheets S are easily rubbed and broken. Therefore, in this embodiment, the sheets S are less likely to get stuck at the outlet, and breaking of the sheets S can be suppressed (FIGS. 1 and 2).

In this embodiment, as described above, the central portion 21 of the first opening 20 in the first direction (X direction) expands in the second direction (Y direction), making it easier to insert fingers or the like into the central portion 21 of the open first opening 20. This makes it easier to pull out the upper layer of sheets S (e.g., the first sheet or first set of sheets S1) that tend to get stuck in the removal outlet. Also, sheets S that fall into the box body 10 during use can be easily removed by inserting fingers into the box body 10. Furthermore, when inserting fingers into the first opening 20, the discomfort felt when the fingers touch the periphery E1 of the first opening 20 can be further reduced, while also reducing the strain on the fingers (Figs. 1 and 2).

In this embodiment, as described above, when a finger whose central portion 21 of the first opening 20 is curved in the short direction (Y direction) is inserted into the central portion 21 of the first opening 20, the finger can smoothly touch the periphery E2 of the first opening 20. Therefore, the discomfort of the finger touching the periphery E2 of the first opening 20 can be further reduced while the burden on the finger can be further reduced (FIGS. 1 and 2).

In this embodiment, as described above, if the cut of the tearing score line M1 formed on the top surface 11 is made to have the same waveform as the waveform W1 of the periphery E3, E4 of the third openings 50, 60 and each edge 13C of the base paper J, etc., the tearing score line M1 formed on the top surface 11 can be torn to form an outlet for the sheet S on the top surface 11 of the box body 10 (Figures 1 and 2).

In addition, in this embodiment, as described above, the width of the first opening 20 in the second direction (Y direction) narrows in the second direction (Y direction) as it progresses from both ends 22, 23 of the first opening 20 toward the center 21 along the first direction (X direction). Therefore, when the tearing cut line M1 is torn to form the first opening 20, the tearing cut line M1 can be smoothly torn by tearing the tearing cut line M1 from both ends 22, 23 of the first opening 20, which have a wide width W2 in the second direction (Y direction), toward the narrow center 21 (FIGS. 1 and 2).

In this embodiment, as described above, by forming the second openings 30, 40 for splitting the split score line M1 in the part 11C of the top surface 11 surrounded by the split score line M1, a fingertip can be inserted into the second openings 30, 40 and the inserted fingertip can be pulled upward over the part 11C of the top surface 11. This allows the second openings 30, 40 to act as a trigger when splitting the split score line M1, making it easier to form the first opening 20 by splitting the split score line M1 formed on the top surface 11 (Figures 1 and 2).

In this embodiment, as described above, when at least a portion of the periphery E2 of the second openings 30, 40 is formed into a waveform W1, the portion of the periphery E2 of the second openings 30, 40 that the fingertips touch is only the convex portion B of the waveform W1. Therefore, when the first opening 20 is formed in the top surface 11 by splitting the splitting cut line M1, the burden on the fingers can be reduced when inserting the fingertips into the second openings 30, 40 or when pulling the inserted fingertips upward over a portion 11C of the top surface 11 (Figs. 1 and 2).

In this embodiment, as described above, at least a portion of the periphery E2 of the second openings 30, 40 is curved from the center 21 side in the first direction (X direction) of the first opening 20 toward both ends 22, 23 in the first direction (X direction), so that when the fingertip is inserted into the second openings 30, 40, the fingertip can smoothly touch the periphery E2 of the second openings 30, 40. Therefore, the discomfort of the fingertip touching the periphery E2 of the second openings 30, 40 can be further reduced while the burden on the fingertip can be further reduced (Figs. 1 and 2).

In this embodiment, as described above, when the cut C1 of the tearing score line M2 formed on the part 11C of the top surface 11 is a waveform W1, the tearing score line M2 formed on the part 11C of the top surface 11 can be torn to form the second opening 30, 40 on the part 11C of the top surface 11 of the box body 10 (FIGS. 1 and 2). The second opening 30, 40 formed on the part 11C of the top surface 11 in this manner can constitute a trigger when tearing the tearing score line M1. Specifically, by tearing the tearing score line M2, a fragment (not shown) connected to the part 11C of the top surface 11 via the base end R is formed, and the second opening 30, 40 is formed by tilting the fragment inward or outward of the box body 10. Then, by inserting a fingertip into the second opening 30, 40, the fingertip can be hooked on the part 11C of the top surface 11. In addition, the fingertips inserted into the second openings 30, 40 rest on the base ends (not shown) of the pieces that will form the folds, further reducing strain on the fingertips (Figures 1 and 2).

In this embodiment, as described above, a fingertip can be inserted into the second openings 30, 40 formed on both ends 22, 23 of the first opening 20 in the first direction (X direction) of the part 11C of the top surface 11, and the inserted fingertip can be pulled upward over the part 11C of the top surface 11. This allows the tearing cut line M1 to be cleaved from both ends 22, 23 of the first opening 20 in the first direction (X direction) toward the center 21, making it easy to form the first opening 20 in the top surface 11 (Figs. 1 and 2).

In addition, in this embodiment, as described above, if the width of the first opening 20 in the second direction (Y direction) narrows in the second direction (Y direction) as it progresses from both ends 22, 23 of the first opening 20 toward the center 21 along the first direction (X direction), when the tearing cut line M1 is to be cleaved to form the first opening 20, the tearing cut line M1 can be cleaved smoothly by cleaving the tearing cut line M1 from both ends 22, 23 of the first opening 20, which have a wider width in the second direction (Y direction), toward the center 21, which has a narrower width (Figures 1 and 2).

In this embodiment, when the period of the waveform W1 of the periphery E1 of the first opening 20 and the periphery E2 of the second openings 30, 40 is set to 0.1 mm or more and 5 mm or less, the interval (periods P1, P2, P3) of the convex portions B1, B2 (or concave portions D1, D2) of the waveform W1 becomes small (Figs. 8 to 10). This further reduces the discomfort of the fingers touching the periphery E1 of the first opening 20 or the fingers touching E2 of the second openings 30, 40, while further reducing the burden on the fingers or fingertips (Figs. 1 and 2).

In addition, in this embodiment, when the periphery E1 of the first opening 20 and the periphery E2 of the second openings 30, 40 form a waveform W1, by reducing the spacing (periods P1, P2, P3) between the convex portions B1, B2 (or concave portions D1, D2) of the waveform W1, it is possible to suppress deterioration in the appearance (or appearance) of the sheet storage box 100 caused by making the periphery E1 of the first opening 20 and the periphery E2 of the second openings 30, 40 into a waveform W1 (Figures 1, 2, 8 to 10).

In this embodiment, as described above, when the periphery E1 of the first opening 20 and the periphery E2 of the second openings 30, 40 form a waveform W1, the period of the waveform W1 is set to be at least twice the wave height H of the waveform W1, so that the slope of the convex portion B of the waveform W1 formed on the periphery E1 of the first opening 20 or the periphery E2 of the second openings 30, 40 becomes gentle. This makes the periphery E1 of the first opening 20 or the periphery E2 of the second openings 30, 40 smooth, further reducing the discomfort of the fingers touching the periphery E1 of the first opening 20 or the fingertips touching the periphery E2 of the second openings 30, 40, while further reducing the burden on the fingers or fingertips (FIGS. 1, 2, 8 to 10).

In addition, in this embodiment, the inclination of the convex portion B of the corrugated W1 formed on the periphery E1 of the first opening 20 or the periphery E2 of the second openings 30, 40 is gentle, which makes it possible to suppress deterioration in the appearance (or appearance) of the sheet storage box 100 caused by making the periphery E1 of the first opening 20 corrugated W1 or the periphery E2 of the second openings 30, 40 corrugated W1 (Figures 1, 2, 8 to 10).

Figure 15 is a view of the sheet storage box of the second embodiment as seen from the side (end surface), Figure 16 shows an example of an opening for dismantling the sheet storage box of the second embodiment, and Figure 17 shows the state in Figure 16 after the tearing score line has been torn. Note that in Figures 15 to 17, parts that are common to the first embodiment are given the same reference numerals as in Figures 3 to 5, and descriptions thereof will be omitted.

In the second embodiment, the third opening 50 is formed in the top flap 151 near the edge 152A between the top surface 11 and the edge 152A of the bottom flap 152 and between the edge 153A of the side flap 153 and the edge 154A of the side flap 154. The third opening 60 is formed in the top flap 161 near the edge 162A between the top surface 11 and the edge 162A of the bottom flap 162 and between the edge 163A of the side flap 163 and the edge 164A of the side flap 164 (Figure 15).

In this embodiment, as shown in FIG. 15, the tearing score line 70 is composed of a curved portion 72 and a pair of straight portions 73, and is formed on the top side flap 151 of the end face 15. The third opening 50 corresponds to the portion (part 15A of the end face 15) surrounded by the extension line (first portion 51) of the pair of straight portions 73 of the tearing score line 70 and the curved portion 72 (second portion 52). In addition, the tearing score line 80, although not shown, has a structure corresponding to the tearing score line 70.

The splitting score lines 70, 80 are cut lines in which the cuts C2 and ties T2 (the uncut portions between two cuts C2) are arranged alternately, and when a tie T2 breaks, the adjacent cuts C2 on both sides become continuous cuts. The cuts C2 of the splitting score lines 70, 80 are composed of a waveform W3 (Figure 16).

In the second embodiment, when the curved portion 72 of the tearing score line 70 is torn, a fragment L is formed with the extension line (first portion 51) of the pair of straight portions 73 of the tearing score line 70 as its base end, and a portion 15A of the end face 15 becomes an opening OP surrounded by a portion (first portion 51) of the periphery E3 of the third opening 50 and a portion (second portion 52) of the edge 151A of the top side flap 151 (FIG. 17). The third opening 60, not shown, has a structure corresponding to the third opening 50.

In this structure, in the second embodiment, when a finger is inserted into the third opening 50 (OP) and hooked on the first portion 51 and pulled in the longitudinal direction (X direction) while being pulled downward in the height direction (Z direction), the pair of straight portions 73 of the tearing cut line 70 are torn. Then, the top side flap 151 is separated from the bottom side flap 152, and at the same time, the bottom side flap 152 is pulled away from the side side flaps 153, 154 (Figures 15 to 17).

In addition, a notch (not shown) is formed in the top-side flap 151 that has been separated from the bottom-side flap 152, corresponding to the curved portion 72 of the tearing cut line 70 that has been torn off. Meanwhile, a part of the top-side flap 151 that corresponds to the notch adheres as a broken piece (not shown) to the surface of the edge 162A side of the bottom-side flap 162 from which the top-side flap 161 has been torn off (Figures 15 to 17).

In this embodiment, as described above, the second portions 52, 62 of the disassembly openings (third openings 50, 60) are curved, allowing the fingers, etc. to smoothly touch the periphery E3, E4 of the disassembly openings (third openings 50, 60). Therefore, according to this embodiment, the discomfort felt by the fingers, etc. F touching the periphery E3, E4 of the disassembly openings (third openings 50, 60) when disassembling the box 10 is further reduced, and the burden on the fingers, etc. is further reduced (Figures 15 to 17).

In addition, according to the second embodiment, the first parts 51, 61 of the openings for disassembly (third openings 50, 60) are made straight, so that fingers inserted into the openings for disassembly (third openings 50, 60) can easily be caught on parts (first parts 51, 61) of the edges E3, E4 which are straight. Therefore, in this embodiment, the disassembly work of the box body 10 is easy (Figs. 15 to 17).

Furthermore, in this embodiment, as described above, the second portions 52, 62 of the openings for dismantling (third openings 50, 60) are formed by folding back portions 15A, 16A of the faces (end faces 15, 16) of the box body 10, so that fingers F inserted into the openings for dismantling (third openings 50, 60) can be stably hooked onto portions (second portions 52, 62) of the linearly formed peripheries E3, E4. Therefore, according to this embodiment, the discomfort of fingers touching the peripheries E3, E4 of the openings for dismantling (third openings 50, 60) is reduced, and the work of dismantling the box body 10 is made easier while reducing the burden on the fingers (Figs. 15 to 17).

Figure 18 is a bottom view of the sheet storage box of the third embodiment, and Figure 19 shows the sheet storage box of the third embodiment with the tearing score line torn. In Figure 18, parts common to the first embodiment are given the same reference numerals as in Figures 1 and 2, and descriptions thereof are omitted.

In the third embodiment, at least one surface on which an opening for dismantling is formed is the bottom surface 12 of the box body 10. The bottom surface 12 of the box body 10 indicates the surface on which the sheet storage box 100 is placed. In this embodiment, a fourth opening 90 is formed in the bottom surface 12 of the box body 10 as an opening for dismantling.

The fourth opening 90 has a curved periphery E5. Specifically, the periphery E5 of the fourth opening 90 is configured with a curve extending from end 91A to end 91B on edge 12C of the bottom surface 12, and this curve is arranged in a convex shape from edge 12C to edge 12D of the bottom surface 12 (FIG. 18).

In this embodiment, as shown in FIG. 18, the tearing score line 110 is formed on the bottom surface 12 and is composed of a curved portion 111. The fourth opening 90 corresponds to the portion surrounded by the curved portion 111 of the tearing score line 110 and a portion of the bottom surface 12C (a portion 12E of the bottom surface 12).

The tearing score line 110 is a score line in which the cuts C3 and ties T3 (the uncut portions between two cuts C3) are arranged alternately, and when a tie T3 breaks, the adjacent cuts C3 on both sides become continuous cuts. The cuts C3 of the tearing score line 110 are composed of a waveform W4 (Figure 18).

The splitting cut line 110 indicates a cut line where cuts C3 and ties T3 (the uncut portions between two cuts C3) are arranged alternately, and when a tie T3 breaks, the adjacent cuts C3 on both sides become a continuous cut. In the splitting cut line 110, the length of each cut C3 and the length of each tie T3 can be the same as when cut C1 is waveform W1. In addition, the period and wave height of waveform W4 can be the same as those of waveform W1 described above.

In the third embodiment, when the curved portion 111 of the tearing cut line 110 of the fourth opening 90 is torn, a fragment L is formed with a portion of the edge 12C of the bottom surface 12 as its base end, and a portion 12E (periphery E5) of the bottom surface 12 becomes an opening OP (Figure 19).

In the sheet storage box 100 of the third embodiment, the area of the opening for disassembly (fourth opening 90) is 10% or more and 80% or less of the area of the bottom surface 12. Here, the area of the opening for disassembly (fourth opening 90) refers to the area of the opening for disassembly (fourth opening 90) that overlaps on the same plane as the bottom surface 12 of the box body 10. The area of the bottom surface 12 refers to the area of the entire bottom surface 12.

In addition, in the sheet storage box 100 of the third embodiment, in addition to the opening for disassembly (fourth opening 90), the opening for disassembly (third openings 50, 60) in the first embodiment (FIGS. 1 to 14) or the opening for disassembly (third openings 50, 60) in the fourth embodiment (FIGS. 15 to 17) may be combined.

In the sheet storage box 100 of the third embodiment, the opening (fourth opening 90) is formed on the bottom surface 12 of the box body 10, so that the opening for disassembly (fourth opening 90) can be provided in an inconspicuous position on the box body 10. This makes it possible to prevent the box body 10 from being disassembled by mistake when the sheet storage box 100 is in use.

In addition, in this embodiment, an opening (fourth opening 90) for dismantling the box body 10 is provided on the bottom surface 12 of the box body 10, so that the area of the opening for dismantling (fourth opening 90) can be increased. Therefore, when dismantling the box body 10, the range into which fingers or the like F can be inserted is increased, making it easier to dismantle the box body 10.

In addition, in this embodiment, an opening (fourth opening 90) for dismantling the box body 10 is provided on the bottom surface 12 of the box body 10, so that if the top surface 11 of the sheet storage box 100 is provided with an outlet (first opening 20) to which a resin film is attached, the resin film can be removed from the box body 10 by inserting a finger or the like F through the opening (fourth opening 90) on the bottom surface 12. Therefore, it is easy to separate the box body 10 and the resin film when dismantling the box body 10.

In this embodiment, the area of the opening for disassembly (fourth opening 90) is set to 10% to 80% of the area of the bottom surface 12, so that the opening for disassembly (fourth opening 90) has a large area for inserting fingers, etc., in the box body 10. Therefore, it is possible to provide a sheet storage box 100 in which the box body 10 can be easily disassembled.

In this embodiment, the above-mentioned first, second, and third embodiments are shown as examples of openings for disassembly, but this embodiment is not limited to these forms and can be used widely for disassembling sheet storage boxes.

The present invention will now be described in more detail with reference to examples. The examples, comparative examples, and experimental examples were evaluated by the following tests.

[Sheet storage box (test specimen)]
A box 10 having dimensions of about 44 mm in height, about 229 mm in width, and about 110 mm in depth was produced using base paper J (needle-coated cardboard) with a basis weight of 310 g/ ^m2 . A tearing score line M1 for forming the first opening 20 was formed on the top surface 11 of the box 10. A tearing score line M2 for forming the second openings 30, 40 was formed on a part 11C of the top surface 11 of the box 10 (on both ends 22, 23 of the first opening 20). A tearing score line 70, 80 for forming the third openings 50, 60 was formed on the end faces 15, 16 of the box 10 (FIGS. 1 to 4).

[Easy to disassemble]
The dismantling property of the sheet storage box (test specimen) was evaluated by tearing the curved portion 82 of the tearing score line 80 with a fingertip F, inserting the fingertip F into the opening for dismantling (third opening 60), hooking the inserted fingertip F on the second portion 62 of the third opening 60 and pulling it in the longitudinal direction (X direction) while pulling it upward in the height direction (Z direction) to dismantle the box body 10 (FIGS. 6 and 7). The dismantling property was evaluated according to the following criteria, with 3 or more being good and less than 3 being bad.
5: No discomfort during insertion or disassembly 4: Feels uncomfortable during insertion, but not during disassembly 3: Feels uncomfortable during insertion, but feels uncomfortable during disassembly 2: Feels uncomfortable during both insertion and disassembly 1: Feels pain during both insertion and disassembly

The following describes examples and comparative examples.

[Example 1]
The first parts 51, 61 of the peripheries E3, E4 of the third openings 50, 60 were curved, the cuts C1 of the tearing score lines 70, 80 were made into a waveform W1, and the second parts 52, 62 of the peripheries E3, E4 of the third openings 50, 60 were made straight and made into a waveform W2. The period of the waveforms W1 and W1 was about 0.5 mm, and the wave height was about 0.2 mm. The obtained test specimens were evaluated for dismantling properties. The results are shown in Table 1.

[Example 2]
Except for setting the waveform W1 and the period of the waveform W1 to about 1 mm and the wave height to about 0.3 mm, a test specimen was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Example 3]
Except for setting the waveform W1 and the period of the waveform W1 to about 2 mm and the wave height to about 0.6 mm, a test specimen was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Example 4]
Except for setting the waveform W1 and the period of the waveform W1 to about 3 mm and the wave height to about 1 mm, a test specimen was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Example 5]
Except for setting the waveform W1 and the period of the waveform W1 to about 4 mm and the wave height to about 1.3 mm, a test specimen was prepared and evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Comparative Example 1]
15, a sheet storage box in which the cuts C2 of the tearing score lines 70, 80 were not corrugated W3 was produced, and the exterior was evaluated in the same manner as in Example 1. The results are shown in Table 1.

[Reference Example 1]
15, a test specimen was prepared and evaluated in the same manner as in Comparative Example 1, except that the third opening 50 was formed in the bottom flap 152 near the edge 151A between the edge 151A of the top flap 151 and the bottom surface 12 and between the edge 153A of the side flap 153 and the edge 154A of the side flap 154, and the third opening 60 was formed in the bottom flap 162 near the edge 161A between the edge 161A of the top flap 161 and the bottom surface 12 and between the edge 163A of the side flap 163 and the edge 164A of the side flap 164. The results are shown in Table 1.

As can be seen from Table 1, the sheet storage box with a corrugated edge around the opening for disassembly had good disassembly properties (Examples 1 to 4).

On the other hand, sheet storage boxes in which the edges of the opening for disassembly were not corrugated were poorly dismantled (Comparative Example 1, Reference Example 1).

These results show that a sheet storage box that has a box body that can removably store multiple sheets and an opening for dismantling the box body, where the opening is formed on at least one surface that constitutes the box body and where at least a portion of the periphery of the opening is corrugated, places less strain on the hands and fingers when dismantling the box.

Although the embodiment of the present invention has been described above, the present invention is not limited to a specific embodiment, and various modifications and variations are possible within the scope of the invention described in the claims.

100 Sheet storage box J Base paper S Sheet (tissue paper)
SL Sheet laminate 10 Box body 11 Top surface 11A, 11B Edge 11C Part 12 Bottom surface 12A, 12B, 12C Edge 13 Side surface 13A, 13B, 13C Edge 14 Side surface 14A, 14B Edge 15 Side surface (end surface)
15A Part 151 Top side flap 151A, 151B, 151C Edge 152 Bottom side flap 152A, 152B, 152C Edge 153 Side side flap 153A, 153B, 153C Edge 154 Side side flap 154A, 154B, 154C Edge 16 Side (end surface)
16A Part 161 Top side flap 161A, 161B, 161C Edge 162 Bottom side flap 162A, 162B, 162C Edge 163 Side side flap 163A, 163B, 163C Edge 164 Side side flap 164A, 164B, 164C Edge 17 Adhesive G1, G2, G3 Adhesive 20 First opening 21 Central portion 22, 23 End portion 30, 40 Second opening 50 Third opening 51 First portion 51A End portion 51B End portion 52 Second portion 70 Cut line for tearing 71 Channel portion 72 Curved portion 73 Straight portion 60 Third opening 61 First portion 62 Second portion 80 Cut line for splitting 81 Channel portion 82 Curved portion M1, M2 Cut line for splitting E1, E2, E3, E4, E4, E5 Circumference W1, W2, W3, W4 Waveform B, B1, B2 Convex portion D, D1, D2 Concave P, P1, P2, P3 Period H, H1, H2, H3 Wave height C1, C2, C3 Cut T1, T2, T3 Tie OP Opening L Fragment R1, R2 Notch F Fingers, etc. (fingertip)

Claims (11)

A box body that removably stores a plurality of sheets;
An opening for dismantling the box body,
The opening is formed in at least one surface constituting the box body,
At least a portion of the periphery of the opening is wavy in shape, with a plurality of curved recesses and a plurality of curved protrusions being repeatedly and continuously formed ,
a tear score line is formed in the at least one surface, the tear score line being configured to tear to form the opening;
The sheet storage box has a corrugated shape as described above, wherein the cut of the tearing score line is corrugated . The sheet storage box according to claim 1, in which at least a portion of the box is curved. The sheet storage box according to claim 1 or 2, wherein a part other than the at least part of the periphery of the opening is linear. The sheet storage box according to claim 3, wherein the other part is formed by folding back a part of the one surface. The sheet storage box according to claim 3, wherein the other part is corrugated. The sheet storage box according to claim 1 , wherein the at least one surface is a side surface of the box body. The sheet storage box according to claim 1 , wherein the at least one surface is a bottom surface of the box body. 8. The sheet storage box according to claim 7 , wherein an area of the opening is 10% to 80% of an area of the bottom surface. The box body is made of base paper,
The sheet storage box according to claim 1 , wherein an edge of the base paper exposed to the outside of the box body is corrugated. The sheet storage box according to claim 1 , wherein a period of the waveform is 0.1 mm or more and 6 mm or less. The sheet storage box according to claim 1 , wherein a period of the waveform is at least twice the height of the waveform.

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