JP7382845B2 - seat storage box - Google Patents

Description

The present invention relates to a seat storage box.

In conventional sheet storage boxes, sheets such as tissue paper are stored in a box (also referred to as a carton) made of cardboard or the like, and are pulled out from an outlet opening at the top of the box. In such sheet storage boxes, a resin film (so-called window film) is provided at the outlet, and the sheets are pulled out through slits formed in the film (for example, Japanese Patent No. 4142238). (see publication).

Furthermore, there is a movement to suppress the use of plastics from the viewpoint of reducing the use of fossil fuels and suppressing marine pollution such as microplastics as a measure against global warming caused by recent CO ₂ emissions. On the other hand, sheet storage boxes that do not use resin films (so-called filmless cartons) have been known (see, for example, Japanese Patent No. 6554284).

Patent No. 4142238 Patent No. 6554284

An object of the present invention is to provide a sheet storage box in which an outlet can be easily formed.

A first aspect of the present invention includes a box that accommodates a plurality of stacked sheets, and an outlet formed by opening a part of the top surface of the box, and A portion of the top surface includes a first region having a given length extending in a first direction and a given width extending in a second direction intersecting the first direction; The sheet storage box has a pair of second regions facing each other with a region in between, and the second region opens independently from the first region.

In this specification, the take-out port refers to an opening formed in the top surface of the box to pull out the sheet from the box. A part of the top surface refers to a portion that is less than half of the top surface. The first direction refers to a direction along a predetermined direction on the top surface of the box. The second direction intersecting the first direction refers to a direction perpendicular to a predetermined direction on the top surface of the box or a direction intersecting the brace.

The outlet formed by opening a part of the top surface is formed by cleaving a perforation or the like formed in the top surface. The first region and the second region are formed by cleaving a part of the perforation or the like that forms the outlet.

In the first aspect, a part of the top surface corresponding to the outlet is opened independently of the first area, so that a pair of second areas facing each other in the first direction with the first area in between are opened independently of the first area. The second region or the first region can be opened before the region or the second region is opened.

Thereby, the first region or the second region can serve as a trigger for opening a part of the top surface corresponding to the outlet. Note that the trigger refers to a part (or a part that becomes a trigger) for starting the operation of opening the outlet. Therefore, according to the first aspect, it is possible to provide a sheet storage box in which the outlet can be easily formed.

In a second aspect of the present invention, the second area is a sheet storage box that constitutes a trigger for opening the outlet. In the second aspect, the second region constitutes a trigger that opens the outlet, and such triggers can be provided on both edges of the first region in the first direction. Accordingly, when opening the first region after opening the second region, the opening can be opened from both edges of the first region in the first direction, thereby making it easier to form the outlet.

A third aspect of the present invention is a sheet storage box in which the second region constitutes a pair of flaps extending from both end edges of the outlet in the first direction to the inside of the outlet. Here, the flap refers to a protruding piece whose distal end moves up and down with respect to a fixed base end. In the third aspect, since the second region forms such a flap, flaps can be formed at both ends of the outlet in the first direction.

In such a configuration, the sheet pulled out from the outlet hits the flaps provided at both ends of the outlet, and the flaps are tilted upward, allowing the sheet to come into smooth contact with the flaps. This makes it possible to reduce the resistance to the sheet being pulled out at both ends of the outlet where the sheet is easily rubbed and easily broken. Therefore, in the third aspect, the sheet is less likely to become clogged at the outlet, and breakage of the sheet can be suppressed.

Further, in the third aspect, since such flaps are provided at both ends of the outlet, the sheet is easily supported by the outlet. This can prevent the sheet from falling into the box during use.

A fourth aspect of the present invention is a sheet storage box in which the second area has a curved first edge on the first area side. Here, the edge on the first region side refers to the edge of the second region adjacent to the first region.

In the fourth aspect, by curving the first edge of the second area, both edges of the first area after the second area is opened are bent in a convex shape toward the second area, This makes it easier for hands and fingers to hang onto both edges of the first area. Therefore, according to the fourth aspect, when opening the outlet in the top surface, the first region can be easily opened.

A fifth aspect of the present invention is that the second region has a second edge opposite to the first region that curves convexly toward the outside of the outlet in the first direction. It's a box. Here, the second edge on the opposite side to the first area is an edge adjacent to the first area in the second area and an edge opposite in the first direction, and is an edge in the first direction at the open outlet. Corresponds to both edges of the outlet.

In the fifth aspect, the second edge of the second region is bent in a convex shape toward the outside of the outlet in the first direction, thereby making both edges of the outlet convex outward in the first direction. It can be curved into. Accordingly, in the fifth aspect, the resistance to the sheet being pulled out can be reduced at both ends of the outlet where the sheet is easily rubbed and easily broken. Therefore, in the fifth aspect, the sheet is less likely to become clogged at the outlet, and breakage of the sheet can be suppressed.

A sixth aspect of the present invention is a sheet storage box in which the second edge is partially connected to the top surface. In the sixth aspect, by connecting a portion of the second edge to the top surface, flaps having base ends at a portion of the second edge of the second region can be formed at both ends of the outlet. can. Moreover, since the other portions except for a portion of the second edge are not connected to the top surface, the flap can move smoothly. This makes it possible to reduce the resistance to the sheet at both ends of the outlet.

A seventh aspect of the present invention is a sheet storage box, wherein a dimension of the second region in the first direction is 5% or more and 20% or less of the length of the first region. Here, the dimension of the second region in the first direction refers to the dimension in which the length or width of the second region is maximum along the first direction.

In the seventh aspect, by setting the dimension of the second region in the first direction to be 5% or more and 20% or less of the length of the first region in the first direction, the second region can be used as a trigger for opening the outlet. The area can be made to an appropriate size. Therefore, in the seventh aspect, it becomes easier to open the first region after opening the second region, and it becomes easier to form the outlet.

Further, in the seventh aspect, projecting pieces of appropriate size can be formed as flaps at both ends of the outlet. Thereby, the resistance to the sheet being pulled out can be reduced to such an extent that the flap does not interfere with the sheet being pulled out. Therefore, in the seventh aspect, it is possible to form an ejection port with high precision, which prevents sheets from clogging at the ejection port and which can suppress sheet breakage.

An eighth aspect of the present invention is the sheet storage box, wherein the dimension of the second region in the second direction is larger than the width of the first region. Here, the dimension of the second region in the second direction refers to the dimension in which the length or width of the second region is maximum along the second direction.

In the eighth aspect, by making the dimension of the second region in the second direction larger than the width of the first region, both ends of the ejection port where the sheet is easily clogged and easily broken when the sheet is pulled out can be moved in the second direction. It spreads to As a result, in the eighth aspect, sheets are less likely to become clogged and breakage can be suppressed, so that a sheet storage box with excellent retrieval properties can be obtained.

A ninth aspect of the present invention is a sheet storage box in which the width of the first region increases from a central portion in the first direction toward the second region. Here, when the width of the first region expands from the center part in the first direction toward the second region side, it means that the width of the first region in the second direction increases from the center part of the first region to both ends closer to the second region. It shows that it gets wider towards the end.

In the ninth aspect, the width of the first area is expanded from the center part in the first direction to the second area side, so that when opening the outlet, the width of the first area is increased from both ends of the first area to the center part. Since the first region can be opened in the direction in which the width becomes narrower, the first region can be easily opened after the second region is opened. In addition, since the width of the outlet is wider at both ends than in the center of the outlet, sheets are less likely to get jammed and break at both ends of the outlet, where sheets tend to get clogged and break when pulled out. can do.

A tenth aspect of the present invention is a sheet storage box in which the width of the first area at the center in the first direction increases toward the outside of the outlet in the second direction. Here, the width at the center of the first region in the first direction refers to a dimension where the width at the center of the first region is maximum along the second direction.

In the tenth aspect, the width at the center of the first region in the first direction expands toward the outside of the outlet in the second direction, making it easier for fingers and the like to enter the center of the open outlet. Thereby, the upper sheet of the sheet stack (for example, the first sheet or the first set of sheets) that tends to get stuck in the ejection port can also be easily pulled out. Also, sheets that fall into the box during use can be easily taken out.

An eleventh aspect of the present invention is the sheet storage box, wherein the length of the outlet in the first direction is 85% or more and 95% or less of the length of the top surface in the first direction. The length of the outlet in the first direction indicates a dimension in which the length of the outlet is maximum along the first direction. The length of the top surface indicates the total length of the top surface along the first direction.

In the eleventh aspect, the length of the outlet in the first direction is set to 85% or more and 95% or less of the length of the top surface in the first direction, so that the length of the outlet opening in the top surface in the first direction is The length can be made sufficiently large. This makes it easier to take out the sheet from the outlet. Moreover, even if the length of the outlet in the first direction becomes large, flaps can be provided at both ends of the outlet as described above, so it is possible to suppress the sheet from falling.

According to one aspect of the present invention, it is possible to provide a sheet storage box in which it is easy to form an outlet.

FIG. 3 is a diagram showing a sheet storage box according to an embodiment. FIG. 2 is a view of FIG. 1 viewed from above the sheet storage box. FIG. 2 is a view of FIG. 1 viewed from the front side of the sheet storage box. FIG. 2 is a view of FIG. 1 viewed from the right side of the seat storage box. 3 is a diagram showing an outlet in FIG. 2. FIG. 6 is an enlarged view of the second region on the left side in FIG. 5. FIG. 6 is an enlarged view of the second region on the right side in FIG. 5. FIG. FIG. 3 is a diagram in which the second region in FIG. 2 is open (both ends of the outlet are open); FIG. 9 is a diagram in which the first region is opened in FIG. 8 (the entire outlet is opened). FIG. 10 is a diagram showing broken pieces generated after the first region is opened (the entire extraction port is opened) in FIG. 9; 10 is a diagram showing a state in which the sheet is supported at the outlet in FIG. 9. FIG. 12 is a view of FIG. 11 viewed from the front side of the sheet storage box. 12 is a view of FIG. 11 viewed from the right side of the seat storage box.

Embodiments of the present invention will be described in detail with reference to the drawings. Note that in each figure, common parts may be given the same reference numerals and explanations may be omitted. Furthermore, in each figure, the scale of each member may differ from the actual scale.

In this specification, a three-dimensional orthogonal coordinate system with three axes (X direction, Y direction, Z direction) is used, and the longitudinal direction or left and right direction of the sheet storage box is defined as the X direction (first direction), and the lateral direction or The front-rear direction is the Y direction (second direction), and the height direction or the up-down direction is the Z direction. Further, the term "upper" refers to the upper side of the top surface of the box in the height direction (Z direction) of the sheet storage box.

FIG. 1 is a diagram showing a sheet storage box according to an embodiment. 2 is a view of FIG. 1 viewed from above the seat storage box, FIG. 3 is a view of FIG. 1 viewed from the front side of the seat storage box, and FIG. 4 is a view of FIG. 1 viewed from the top of the seat storage box. It is a view seen from the right side. Note that this embodiment shows a state in which sheets (sheet stacks) are stored in a sheet storage box.

As shown in FIGS. 1 to 4, the sheet storage box 100 according to the present embodiment includes a box 10 formed in a substantially rectangular parallelepiped (including cube) shape. The box body 10 has a top surface 11, a bottom surface 12, side surfaces 13 and 14, and 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 box body 10, the side faces 13 and 14 face each other in the transverse direction (Y direction) of the box body 10, and the end face 15, 16 faces the box 10 in the longitudinal direction (X direction).

The material of the box 10 is not limited, and examples thereof include coated cardboard made from virgin pulp, waste paper pulp, and the like. Further, the dimensions of the box body 10 are not limited, and can be determined depending on the amount and dimensions of the sheets S (sheet stacked body SL) to be stored.

As for the dimensions of the box 10, for example, the length L1 of the box 10 in the longitudinal direction (X direction) can be set to 100 mm or more and 250 mm or less, preferably 200 mm or more and 250 mm or less. Further, the width W1 in the lateral direction (Y direction) can be set to 100 mm or more and 150 mm or less, preferably 100 mm or more and 130 mm or less. Furthermore, the height H in the height direction (Z direction) can be set to 30 mm or more and 150 mm or less, preferably 40 mm or more and 80 mm or less.

The basis weight of the box 10 is not limited, but from the viewpoint of ensuring sufficient strength to withstand use, it is preferably 250 g/m ² or more and 450 g/m ² or less, more preferably 300 g/m ² or more and 400 g/m 2 or less. ^m2 or less. In addition, in this specification, the basis weight is measured according to the basis weight measurement method of JIS P 8124 (1998).

In the sheet storage box 100, the box body 10 accommodates a plurality of stacked sheets S (sheet stack SL). In this embodiment, a plurality of sheets of thin paper (tissue paper) whose stacking direction SD is the height direction (Z direction) are accommodated as the sheets S constituting the sheet stacked body SL.

The use of the sheet S is not limited to tissue paper, and can be applied to, for example, articles such as toilet paper, kitchen paper, paper towels, paper diapers for babies or nursing care, and sanitary napkins. Note that sanitary thin paper such as tissue paper also includes sanitary thin paper containing a moisturizing component (for example, lotion tissue, etc.). Moreover, the sheet S can be applied to any of industrial, household, and portable uses. Note that, among these materials, household tissue paper is preferably used in the sheet storage box 100 of the present embodiment.

The form of the sheet laminate SL is not particularly limited, and may include, for example, one in which each sheet S is folded and stacked alternately (a so-called pop-up sheet laminate SL), or a plurality of sheets (or a plurality of sets) of sheets. Examples include one in which the sheets S are simply laminated, and one in which the sheets S are laminated in a folded state. Note that 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 laminate SL are such that the length in the longitudinal direction (X direction) is 150 mm or more and 250 mm or less, and the length in the transverse direction (Y direction) is 60 mm or more and 130 mm or less, The height in the height direction (Z direction) is 20 mm or more and 110 mm or less. Such sheet stacks can be produced, for example, by rotary or multi-stand interfolders.

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

The material of the sheet S is not particularly limited, and for example, a sheet of paper, nonwoven fabric, or cloth can be used, and preferably a paper sheet (hereinafter referred to as a paper sheet). Note that when the sheet S is a paper sheet, a base paper whose main raw material is pulp is used. As the pulp composition, a known composition for paper sheets can be used. For example, the blending ratio of pulp can be 50% by mass or more, preferably 90% by mass or more, and more preferably 100% by mass.

Further, the pulp composition in the sheet S (paper sheet) is not particularly limited. For example, softwood pulp such as NBKP (softwood kraft pulp) or NUKP (softwood unbleached pulp) and hardwood pulp such as LBKP (hardwood kraft pulp) or LUKP (hardwood unbleached pulp) can be used in any ratio. I can do it. Note that the ratio of softwood pulp to hardwood pulp is not limited, but is preferably 10:90 to 80:20, and more preferably a pulp composition in which the ratio of softwood pulp to hardwood pulp is higher. Furthermore, waste paper pulp may be used as the pulp contained in the sheet S (paper sheet).

In addition, the basis weight of the sheet S 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. Something is desirable. Note that the basis weight can be measured in accordance with the regulations of JIS P 8124.

Further, the thickness of the sheet S is not particularly limited, and a paper thickness measured under the environment of JIS P 8111 (1998) can be adopted. For example, the paper thickness of the paper sheet constituting the sheet S can be 50 μm or more and 500 μm or less, and preferably 60 μm or more and 330 μm or less per 2 plies.

Further, the sheet S (paper sheet) may be embossed. Such embossing can be performed by a known embossing method.

The sheet storage box 100 has an outlet 20. The outlet 20 is formed by opening a portion 11A of the top surface 11 of the box body 10. The outlet 20 is an opening OP formed in the top surface 11 of the box 10 in order to pull out the sheet S from inside the box 10 (see FIG. 9). The portion 11A of the top surface 11 is less than half of the top surface 11 (see FIGS. 1 and 2).

In this embodiment, the outlet 20 is surrounded by a perforation M formed on the top surface 11. The outlet 20 becomes an opening OP formed in the top surface 11 of the box body 10 by cleaving this perforation M (see FIG. 9). Here, the perforation M is a cleavage cut where cuts C and ties T (the uncut portion between two cuts C) are arranged alternately, and when the tie T breaks, the cuts C on both sides become continuous cuts. Indicates line of sight (see Figure 5).

In the sheet storage box 100 of this embodiment, the open portion 11A of the top surface 11 has a first region 30 and a pair of second regions 40 and 50. The first region 30 has a given length L3 extending in a first direction (X direction) and a given width W3 extending in a second direction (Y direction) intersecting the first direction (X direction). . Further, the pair of second regions 40 and 50 face each other with the first region 30 in between in the first direction (X direction).

Here, the first direction (X direction) indicates a direction along a predetermined direction on the top surface 11 of the box 10. The second direction (Y direction) intersecting with the first direction (X direction) indicates a direction perpendicular to a direction along a predetermined direction on the top surface 11 of the box 10 or a direction along a direction intersecting the braces. .

In this embodiment, the first direction (X direction) corresponds to the longitudinal direction of the sheet storage box 100, and the second direction (Y direction) corresponds to the lateral direction of the sheet storage box 100. Note that the relationship between the first direction (X direction) and the second direction (Y direction) is not limited to this. For example, the first direction (X direction) corresponds to the lateral direction of the sheet storage box 100, and the The two directions (Y direction) may correspond to the longitudinal direction of the sheet storage box 100.

In this embodiment, the second regions 40 and 50 open independently of the first region 30. Here, the expression that the second regions 40 and 50 are opened independently of the first region 30 means that the first region 30 and the second regions 40 and 50 can be opened separately.

Specifically, the first region 30 is formed by a part of the perforation M (perforation M1) surrounding the outlet 20 (see FIG. 5), and the second regions 40 and 50 are formed by a part of the perforation M surrounding the outlet 20. It is formed by other parts of the stitch M (perforations M2 and M3) (see FIGS. 5 and 6). Then, the perforation M1 forming the first region 30 and the perforations M2 and M3 forming the second regions 40 and 50 are cleaved separately to form the outlet 20 (opening OP) (FIG. 2 , see Figures 5 to 9).

In addition, in the perforation M1 surrounding the first region 30, the length of each cut C1 can be 0.3 mm or more and 20 mm or less, preferably 0.5 mm or more and 15 mm or less, and more preferably 1 mm or more and 13 mm or less. It is as follows. Further, 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. .

Further, in the perforations M2 and M3 surrounding the second regions 40 and 50, the length of each cut C2 can be 0.3 mm or more and 20 mm or less, preferably 0.5 mm or more and 15 mm or less, and more preferably is 1 mm or more and 10 mm or less. Further, the length of each tie T2 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. . Furthermore, the length of the tie T3 can be 5 mm or more and 20 mm or less, preferably 7 mm or more and 18 mm or less, and more preferably 10 mm or more and 15 mm or less.

In this embodiment, when the perforation M1 of the first region 30 is torn, the base 21 of the outlet 20 (opening OP) is formed. Further, when the perforations M2 and M3 forming the second regions 40 and 50 are torn, the ends 22 and 23 of the outlet 20 (opening OP) are formed.

The order in which the perforation M1 of the first region 30 and the perforations M2 and M3 forming the second regions 40 and 50 are cleaved is not limited. In this embodiment, after the perforations M2 and M3 forming the second regions 40 and 50 are cleaved, the perforation M1 of the first region 30 is cleaved (FIGS. 2, 5, 8, and 9). refer. Thereby, the second regions 40 and 50 constitute triggers P1 and P2 that open the outlet 20 (see FIG. 8). Note that the triggers P1 and P2 indicate parts (or parts that become a trigger) for starting the operation of opening the outlet 20.

In the sheet storage box 100, the first region 30 has a width W3 that increases from the central portion 34 in the first direction (X direction) toward the second regions 40 and 50. Specifically, the first region 30 has a base portion 31 and end portions 32 and 33. The width W2 of the first region 30 in the second direction (Y direction) is wider from the central portion 34 of the first region 30 toward both end portions 32 and 33 closer to the second regions 40 and 50. Become. Note that the base portion 31 has tapered portions 31A and 31B (see FIG. 5).

Further, in the first region 30, the width W4 at the center portion 34 in the first direction (X direction) expands toward the outside OD of the outlet 20 in the second direction (Y direction). Here, the width at the center portion 34 of the first region 30 in the first direction (X direction) is determined by the dimension W4 at which the width of the center portion 34 of the first region 30 is maximum along the second direction (Y direction). show. As a result, in the first region 30, the central portion 34 forms a bulging portion 31C between the tapered portions 31A and 31B (see FIGS. 1, 2, and 5).

Specifically, when the perforation M1 of the first region 30 is torn, the base 21 of the outlet 20 (opening OP) is formed on the top surface 11. The base 21 of the outlet 20 (opening OP) has a central portion 21A and tapered portions 21B and 21C (see FIG. 9). Note that when the perforation M1 of the first region 30 is torn, the base 21 of the outlet 20 (opening OP) is formed and at the same time, the broken pieces B are generated (see FIG. 10).

The base 21 of the outlet 20 (opening OP) corresponds to the base 31 of the first region 30. Specifically, the central portion 21A of the base 21 corresponds to the central portion 34 (bulging portion 31C) of the base 31 in the first region 30, and the tapered portions 21B and 21C of the base 21 correspond to the central portion 34 (bulging portion 31C) of the base 31 in the first region 30. 31 (see FIG. 9).

In the sheet storage box 100, the second regions 40, 50 constitute a pair of flaps F1, F2 extending from both end edges 22A, 23A of the outlet 20 in the first direction (X direction) to the inside ID of the outlet 20 ( (See Figures 2, 9, and 11 to 13). Here, the flaps F1 and F2 are protruding pieces whose tips FT1 and FT2 move up and down with respect to the fixed base ends FB1 and FB2 (portions indicated by dotted lines).

In the sheet storage box 100, when the perforations M2 and M3 forming the second regions 40 and 50 are torn, the ends 22 and 23 of the outlet 20 (opening OP) are formed on the top surface 11. Then, the base ends FB1 and FB2 connect to the top surface 11 to the ends 22 and 23 of the outlet 20 (opening OP), and the flaps F1 and F2 whose tips FT1 and FT2 move up and down are connected to the second regions 40 and 50. are correspondingly formed (see FIGS. 9 and 11 to 13).

In the second regions 40 and 50, first edges 41 and 51 on the first region 30 side are curved. Here, the first edges 41, 51 on the first region 30 side indicate the edges of the second regions 40, 50 adjacent to the first region 30 (see FIGS. 5 to 7).

Further, second edges 42 and 52 of the second regions 40 and 50 on the opposite side to the first region 30 are curved in a convex shape toward the outside OD of the outlet 20 in the first direction (X direction). Here, the second edges 42, 52 on the side opposite to the first area 30 are connected to the first edges 41, 51 adjacent to the first area 30 in the second areas 40, 50 in the first direction (X direction). and corresponds to both end edges 22A and 23A of the outlet 20 in the first direction (X direction) in the open outlet 20 (see FIGS. 5 to 7).

Specifically, the second region 40 has a first edge 41 , a second edge 42 , and side edges 43 and 44 . The first edge 41 has a concave portion 41A and ends 41B and 41C, and the second edge 42 has a convex portion 42A and ends 42B and 42C. The side edge 43 has a convex portion 43A and ends 43B, 43C, and the side edge 44 has a convex portion 44A and ends 44B, 44C (see FIG. 6).

In the second region 40, the end 41B of the first edge 41 corresponds to the end 43B of the side edge 43, and the end 41C of the first edge 41 corresponds to the end 44B of the side edge 44. corresponds to Furthermore, the end 42B of the second edge 42 corresponds to the end 43C of the side edge 43, and the end 42C of the second edge 42 corresponds to the end 44C of the side edge 44 (see FIG. reference).

Further, the second region 50 has a first edge 51, a second edge 52, and side edges 53 and 54. The first edge 51 has a concave portion 51A and ends 51B and 51C, and the second edge 52 has a convex portion 52A and ends 52B and 52C. The side edge 53 has a convex portion 53A and ends 53B, 53C, and the side edge 54 has a convex portion 54A and ends 54B, 54C (see FIG. 7).

In the second region 50, the end 51B of the first edge 51 corresponds to the end 53B of the side edge 53, and the end 51C of the first edge 51 corresponds to the end 54B of the side edge 54. corresponds to Further, the end 52B of the second edge 52 corresponds to the end 53C of the side edge 53, and the end 52C of the second edge 52 corresponds to the end 54C of the side edge 54 (Fig. reference).

In the second regions 40 and 50, the second edges 42 and 52 are partially connected to the top surface 11. Here, a portion of the second edges 42, 52 connected to the top surface 11 corresponds to the tie T3 (portion indicated by a dotted line). In this embodiment, by connecting a part of the second edges 42, 52 (tie T3) to the top surface 11, the second edges of the second areas 40, 50 are connected to both ends 22, 23 of the outlet 20. Flaps F1 and F2 are constructed in which parts of 42 and 52 (tie T3) serve as base ends FB1 and FB2 (see FIGS. 6, 7, and 9 to 13).

The dimension L4 of the second regions 40, 50 in the first direction (X direction) is 5% or more and 20% or less, preferably 7% or more and 18% or less, more preferably 10% or more of the length L3 of the first region 30. % or more and 15% or less. Here, the dimension of the second regions 40, 50 in the first direction (X direction) indicates a dimension L4 in which the length of the second regions 40, 50 is maximum along the first direction (X direction) (Fig. (see 2).

Further, the dimension W3 of the second regions 40 and 50 in the second direction (Y direction) is larger than the width W2 of the first region 30. Here, the dimension of the second regions 40, 50 in the second direction (Y direction) indicates a dimension W3 in which the length of the second regions 40, 50 is maximum along the second direction (Y direction) (Fig. (see 2).

In the sheet storage box 100, the length L2 of the outlet 20 in the first direction (X direction) is 80% or more and 95% or less of the length L1 of the top surface 11 in the first direction (X direction), preferably It is 82% or more and 93% or less, more preferably 85% or more and 90% or less. The length of the outlet 20 in the first direction (X direction) indicates a dimension L2 in which the length of the outlet 20 is maximum along the first direction (X direction). The length of the top surface 11 refers to the total length L1 of the top surface 11 along the first direction (X direction) (see FIG. 2).

The effects of this embodiment will be explained below. In this embodiment, as described above, the part 11A of the top surface 11 corresponding to the outlet 20 is connected to a pair of second regions 40 and 50 facing each other across the first region 30 in the first direction (X direction). By opening independently of the first region 30, the second region 40, 50 or the first region 30 can be opened before the first region 30 or the second region 40, 50 is opened (FIG. 8 ~See Figure 10).

This causes the first region 30 or the second regions 40, 50 to act as a trigger for opening a portion 11A of the top surface 11 corresponding to the outlet 20 (a portion for starting the operation of opening the outlet 20). (see Figures 1, 2, and 8 to 10). Therefore, according to this embodiment, the sheet storage box 100 in which the outlet 20 can be easily formed can be obtained.

Further, in this embodiment, as described above, by configuring the triggers P1 and P2 that open the outlet 20 in the second regions 40 and 50, such triggers P1 and P2 are connected to the first region 30 of the first region 30. It can be provided on both end edges 32A and 33A in the direction (X direction). With this, when opening the first region 30 after opening the second regions 40 and 50, it is possible to open from both edges 32A and 33A of the first region 30 in the first direction (X direction), so that it can be removed. Formation of the outlet 20 becomes easier (see FIGS. 8 and 9).

In this embodiment, as described above, the second regions 40 and 50 constitute the flaps F1 and F2, so that the flaps F1 are provided at both ends 22 and 23 of the outlet 20 in the first direction (X direction). , F2 can be configured. In such a configuration, the sheet S pulled out from the outlet 20 hits the flaps F1 and F2 provided at both ends 22 and 23 of the outlet 20, and the flaps F1 and F2 are inclined upward, so that the sheet S is pulled out from the flap. It is possible to smoothly contact F1 and F2 (see FIGS. 9 and 11 to 13).

As a result, in this embodiment, the resistance to the sheet S being pulled out can be reduced at both ends 22 and 23 of the outlet 20, where the sheet S is easily rubbed and easily broken. Therefore, in this embodiment, the sheet S is less likely to become clogged at the outlet 20, and breakage of the sheet S can be suppressed (see FIGS. 11 to 13).

Further, in this embodiment, since such flaps F1 and F2 are provided at both ends 22 and 23 of the outlet 20, the sheet S is easily supported by the outlet 20. Thereby, it is possible to prevent the sheet S from falling into the box body 10 during use (see FIGS. 11 to 13).

In this embodiment, as described above, by curving the first edges 41, 51 of the second regions 40, 50, both edges 32A of the first region 30 after the second regions 40, 50 are opened, 33A is curved in a convex shape toward the second regions 40 and 50, making it easier for hands and fingers to hang onto both end edges 32A and 33A of the first region 30. Therefore, according to this embodiment, when opening the outlet 20 in the top surface 11, the first region 30 can be opened easily (see FIGS. 2 and 5 to 8).

In this embodiment, as described above, the second edges 42, 52 of the second regions 40, 50 are bent convexly toward the outer side OD of the outlet 20 in the first direction (X direction), so that the Both end edges 22A and 23A of the outlet 20 can be curved in a convex shape outward OD in the first direction (X direction) (see FIGS. 2 and 5 to 8).

As a result, in this embodiment, the resistance to the sheet S being pulled out can be reduced at both ends 22 and 23 of the outlet 20, where the sheet S is easily rubbed and easily broken. Therefore, in this embodiment, the sheet S is less likely to become clogged at the outlet 20, and breakage of the sheet S can be suppressed (see FIGS. 11 to 13).

In this embodiment, as described above, the flaps F1 and F2 are not connected to the top surface 11 because the other portions (part of the cut C2) except for a portion of the second edges 42 and 52 (tie T3) are not connected to the top surface 11. Can move smoothly. Thereby, the resistance against the sheet S at both ends 22 and 23 of the outlet 20 can be reduced (see FIGS. 2, 5 to 9, and 11 to 13).

In this embodiment, as described above, the dimension L4 of the second regions 40 and 50 in the first direction (X direction) is set to 5% or more of the length L3 of the first region 30 in the first direction (X direction). % or less, the second regions 40, 50 can be made to have an appropriate size as triggers P1, P2 for opening the outlet 20 (see FIGS. 2 and 8). Therefore, in this embodiment, after opening the second regions 40 and 50, it becomes easier to open the first region 30, and the formation of the outlet 20 becomes easier (see FIG. 8).

Further, in this embodiment, projecting pieces of appropriate size can be formed as flaps F1 and F2 at both ends 22 and 23 of the outlet 20 (see FIG. 9). Thereby, the resistance to the sheet S being pulled out can be reduced to such an extent that the flaps F1 and F2 do not interfere with the sheet S being pulled out. Therefore, in this embodiment, it is possible to form the outlet 20 with high precision, which prevents the sheet S from clogging at the outlet 20 and prevents the sheet S from breaking (see FIGS. 11 to 13).

In this embodiment, as described above, by making the dimension W3 of the second regions 40 and 50 in the second direction (Y direction) larger than the width W2 of the first region 30, the sheet Both ends 22 and 23 of the outlet 20, where S is easily clogged and easily broken, expand in the second direction (Y direction) (FIGS. 2, 5, 9, and 11 to 13). As a result, in this embodiment, the sheets S are less likely to become clogged and breakage can be suppressed, so that the sheet storage box 100 with excellent retrieval properties can be obtained.

In this embodiment, as described above, the width W2 of the first region 30 expands from the central portion 34 in the first direction (X direction) toward the second regions 40 and 50, so that when opening the outlet 20, The first region 30 can be opened in a direction in which the width W2 of the first region 30 becomes narrower from both ends 32 and 33 of the first region 30 toward the center portion 34. Therefore, the first region 30 is easily opened after the second regions 40 and 50 are opened (see FIGS. 2, 5, 9, and 11).

Further, the width of the outlet 20 (width W2 of the first region 30) is wider at both ends 22 and 23 than at the center 24 of the outlet 20. Therefore, in this embodiment, the sheet S is less likely to become clogged at both ends 22 and 23 of the outlet 20, where the sheet S is easily clogged and easily broken when the sheet S is pulled out, and breakage can be suppressed (see FIG. (See Figure 11).

In the present embodiment, as described above, the width W4 at the center portion 34 of the first region 30 in the first direction (X direction) expands to the outside OD of the outlet 20 in the second direction (Y direction), so that the opening This makes it easier to insert fingers or the like into the central portion 24 of the outlet 20 (see FIGS. 9 and 11). Thereby, the upper sheet S (for example, the first sheet or the first set of sheets S1) of the sheet stack SL, which is likely to get clogged in the ejection port 20, can also be easily pulled out. Moreover, the sheet S that has fallen into the box body 10 during use can be easily taken out.

In this embodiment, as described above, the length L2 of the outlet 20 in the first direction (X direction) is set to 85% or more and 95% or less of the length L1 of the top surface 11 in the first direction (X direction). By doing so, the length in the first direction (X direction) of the outlet 20 that opens in the top surface 11 can be made sufficiently large (see FIGS. 2 and 9). Thereby, the sheet S can be easily taken out from the takeout port 20. Further, even if the length L2 of the outlet 20 in the first direction (X direction) becomes large, the flaps F1 and F2 can be provided at both ends 22 and 23 of the outlet 20 as described above, so the sheet S (See FIGS. 9 and 11).

Hereinafter, the present invention will be further described in detail using Examples. Evaluations of Examples, Comparative Examples, and Experimental Examples were performed by the following tests.

[Sheet storage box (test specimen)]
A box 10 was prepared in which the base paper was a backing paperboard with a basis weight of 310 g/m ² and dimensions were approximately 44 mm in height, approximately 229 mm in width, and approximately 110 mm in depth. An outlet 20 extending in the longitudinal direction (X direction) of the top surface 11 is formed in the top surface 11 of the box body 10. The outlet 20 was configured with a perforation M, and by tearing the perforation M, the outlet 20 became an opening OP (see FIGS. 1, 2, 5, and 9).

[Sheet (tissue paper)]
Sheet S (sheet laminate SL) is tissue paper (basis weight: 10.7 g/m ² , paper thickness: 110 μm, number of plies: 2 plies) that is alternately folded and stacked so that it can be pulled out one set at a time in a pop-up style. , number of sets: 150 sets (300 sheets), dimensions: bulk (height) about 40 mm, length width about 197 mm, width about 207 mm) were used. Further, the sheets S (sheet stacked body SL) were housed in the box body 10 so that the stacking direction SD was in the height direction (Z direction) of the sheet storage box 100 (see FIGS. 1, 3, and 4).

[Openability]
As for the unsealability of the sheet storage box (test specimen), when opening the box by placing a finger on the perforation M formed on the top surface 11 of the box body 10 and tearing the perforation to form the outlet 20 (opening OP), The ease of opening the body 10 was evaluated. The unsealability was evaluated based on the following criteria, with scores of 4 or higher being considered good and those below 4 being bad.
5: Easy to hang and tear with fingers 4: Easy to hang and tear with fingers 3: Difficult to hang with fingers but can tear 2: Easy to hang with fingers but difficult to tear 1: Difficult to hang with fingers and hard to tear

[Easy to take out]
To remove the sheet storage box (test specimen), remove the first set of sheets S from the sheet stack SL housed in the box body 10 by inserting your thumb and forefinger into the removal port 20 formed on the top surface 11. We checked the ease of picking when picking. The removability was evaluated based on the following criteria. As for the evaluation criteria for the retrieval property, when the removability was 4 or more, it was considered good (the sheet S was easy to take out), and when it was less than 4, it was considered bad (the sheet S was difficult to take out).
5: The first pair of fingers can be pinched without touching the outlet 4: The fingers slightly touch the outlet but the first pair can be pinched 3: The fingers touch the outlet but the first pair can be pinched 2: The first set is difficult to pick up when your fingers touch the outlet 1: The first set is difficult to pick up

[Takeout resistance value]
To obtain the extraction resistance value of the sheet storage box (test specimen), the specimen was placed on a flat mounting surface, and the first set of tissue paper (sheet S) was pulled out by approximately 40 mm from the extraction port 20 of the box body 10. Clip the upper end of the sheet S (the center of the edge of the sheet S) with a double clip (manufactured by Plus Co., Ltd., "CP-103", the size of the gripping part is about 32 mm), and attach it to one side of the handle part of the double clip. Hook the push-pull gauge (manufactured by Imada Co., Ltd., Digital Force Gauge Z2-20N) to the sheet at a constant speed for 0.4 to 0.6 seconds in a direction perpendicular to the top surface of the container. The resistance force (unit: gf) when S was pulled out was measured. The evaluation criteria for the extraction resistance value is that if the average value of the resistance force is 130 gf or less when the fifth set of sheets S is pulled out after measurement is performed three times, it is considered good (sheet S is easy to take out), and if it exceeds 130 gf. In this case, it was classified as defective (sheet S was difficult to take out).

[Depression]
As the fall resistance of the sheet storage box (test specimen), when 150 sets of sheets S were pulled out to the last set, the number of times the sheet S was not held in the ejection port 20 and fell into the box body 10 was measured. . The evaluation criteria for depression is that if the average value of the number of times the sheet S fell when the measurement was performed 5 times is less than 0.5, it is considered good (the sheet did not fall), and if it is 0.5 or more, it is considered good. was determined to be defective (the sheet fell down).

Examples, comparative examples, and experimental examples will be described below.

[Example 1]
As a test specimen, a portion 11A of the top surface 11 of the box 10 extends to a length L3 extending in the first direction (X direction) and in a second direction (Y direction) intersecting the first direction (X direction). It has a first region 30 having a width W3, and a pair of second regions 40 and 50 that face each other across the first region 30 in the first direction (X direction), and the second regions 40 and 50 are the outlet. A pair of flaps F1 that serve as triggers P1 and P2 to open the outlet 20 (the outlet having a wide shape at both ends) and extend from both end edges 22A and 23A of the outlet 20 in the first direction (X direction) to the inner side ID of the outlet 20; The sheet storage box 100 constituting F2 (side end flap) was evaluated for its unsealability, ejectability, ejection resistance value, and fallability. The results are shown in Table 1.

[Comparative example 1]
An elliptical perforation is split on the top of the box to form an outlet (elliptical outlet), and a resin film (so-called window film) covering the outlet is placed on the back side of the top. The evaluation was carried out in the same manner as in Example 1, except that the film was provided with a slit extending in the longitudinal direction of the outlet (the sheet was pulled out by tearing). The results are shown in Table 1.

[Comparative example 2]
It was evaluated in the same manner as Comparative Example 1 except that no window sticking film was attached. The results are shown in Table 1.

[Comparative example 3]
The sheet storage box (S-shaped outlet) disclosed in Patent Document 2 was evaluated in the same manner as in Example 1. The results are shown in Table 1.

From Table 1, the second regions 40 and 50 forming a part of the top surface of the box become the triggers P1 and P2 that open the outlet 20, and both ends of the outlet 20 in the first direction (X direction) The sheet storage box 100 that constitutes the pair of flaps F1 and F2 extending from 22A and 23A to the inner ID of the outlet 20 was good in all of the ease of opening, ease of taking out, taking out resistance value, and fallability (Example 1 ).

On the other hand, the sheet storage box provided with an elliptical outlet and a window film on the top surface had poor unsealability, ejectability, and ejection resistance (Comparative Example 1). In addition, the sheet storage box without the window film had poor opening performance, take-out property, take-out resistance value, and drop-in property (Comparative Example 2). Furthermore, a sheet storage box without a window film, in which a part of the top surface acts as a trigger to open the extraction port but does not constitute a flap, had poor extraction performance, extraction resistance, and dropability (comparison). Example 3).

Based on these results, a part of the top surface of the box is configured such that a pair of second regions face each other across the first region in the first direction, and the second region opens independently of the first region. Thus, the sheet storage box in which the second region constitutes a trigger for opening the outlet and a pair of flaps extending from both end edges of the outlet in the first direction to the inside of the outlet is configured such that the opening is not formed. It was found that the sheet was easy to remove, and the sheet did not fall easily.

Although the embodiments of the present invention have been described above, the present invention is not limited to specific embodiments, and various modifications and changes can be made within the scope of the invention described in the claims. .

100 Sheet storage box S Sheet (tissue paper)
SL Sheet laminate 10 Box 11 Top 11A Part 12 Bottom 13, 14 Sides 15, 16 End 20 Outlet ID Inside OD Outside 21 Base 21A Center 21B, 21C Tapered part 22, 23 End 22A, 23A End Edge 24 Central part 30 First region 31 Base 31A, 31B Taper part 31C Swelling part 32, 33 End part 32A, 33A Edge 34 Central part 40, 50 Second region 41, 51 First end edge 41A, 51A Recessed part 41B , 41C, 51B, 51C End portion 42, 52 Second edge 42A, 52A Convex portion 42B, 42C, 52B, 52C End portion 43, 44, 53, 54 Side edge 43A, 44A, 53A, 54A Convex portion 43B, 43C, 44B, 44C, 53B, 53C, 54B, 54C End L1, L2, L3, L4 Length W1, W2, W3, W4 Width H Height M, M1, M2, M3 Perforation C1, C2 Cut T1, T2, T3 Tie P1, P2 Trigger F1, F2 Flap FB1, FB2 Proximal end FT1, FT2 Tip OP Opening B Fragment

Claims (9)

a box housing a plurality of stacked sheets;
and an outlet formed by opening a part of the top surface of the box,
The part of the top surface that opens is
a first region having a given length extending in a first direction and a given width extending in a second direction intersecting the first direction;
a pair of second regions facing each other across the first region in the first direction;
The second region opens independently from the first region and constitutes a pair of flaps extending from both edges of the outlet in the first direction to the inside of the outlet,
A sheet storage box, wherein a first edge of the second area on the first area side has a concave portion convexly curved toward the both edge sides of the outlet. The sheet storage box according to claim 1, wherein the second region constitutes a trigger for opening the outlet. 3. The sheet storage box according to claim 1 , wherein the second area has a second edge opposite to the first area that is curved in a convex shape toward the outside of the outlet in the first direction. The sheet storage box according to claim 3 , wherein a portion of the second edge is connected to the top surface. The sheet storage box according to any one of claims 1 to 4 , wherein a dimension of the second region in the first direction is 5% or more and 20% or less of the length of the first region. The sheet storage box according to any one of claims 1 to 4 , wherein a dimension of the second region in the second direction is larger than the width of the first region. The sheet storage box according to any one of claims 1 to 6 , wherein the width of the first region increases from a central portion in the first direction toward the second region. The sheet storage box according to any one of claims 1 to 7 , wherein the width of the first region at a central portion in the first direction increases toward the outside of the outlet in the second direction. The sheet storage box according to any one of claims 1 to 7 , wherein the length of the outlet in the first direction is 85% or more and 95% or less of the length of the top surface in the first direction. .

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