JP7403333B2 - 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). Publication No.).

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 (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, and a central portion of the first region. The sheet storage box has a second area adjacent to one of the second directions, and the second area opens independently of the first area.

In this specification, the outlet may constitute an opening formed in the top surface of the box body for pulling out the sheet from the box body. A part of the top surface indicates a portion less than half of the top surface. 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 direction indicates a direction along a predetermined direction on the top surface of the box. The second direction intersecting the first direction is a direction perpendicular to a predetermined direction on the top surface of the box or a direction intersecting the brace. One of the second directions refers to one of the two second directions.

The first region and the second region are opened by cleaving a perforation or the like that forms an outlet. The central part of the first region includes the center (or centroid) of the first region, and has a length in the first direction of about 1/3 to 1/2 of the length of the first region in the first direction. Indicates a range. The expression that the second region is opened independently of the first region means that the first region and the second region can be opened separately.

In the first aspect, a part of the top surface corresponding to the outlet is opened independently of the first area in the second area adjacent to the central part of the first area and in one of the second directions. , the second region can be opened before the first region is opened.

In such a configuration, the second region can serve as a trigger for opening the outlet on the top surface. Note that the trigger indicates a site for starting the operation of opening the outlet (or a site that triggers the opening). As a result, in the first aspect, it is possible to provide a sheet storage box in which the outlet can be easily formed.

Further, in the first aspect, the second region is adjacent to the central portion of the first region in one direction of the second direction, so that the outlet after a part of the top surface is opened can be opened in the second direction. The range can be expanded from the center of the first region to include the second region.

With such a configuration, it becomes easy to insert fingers or the like into the center of the open outlet. Therefore, in the first aspect, it is possible to easily pull out the upper sheet of the sheet stack (for example, the first sheet or the first set of sheets) that tends to get clogged in the ejection port. Also, sheets that fall into the box during use can be easily taken out.

A second aspect of the present invention is that a first edge of the first region on a side opposite to the second region side of the first region in the second direction is connected to the top surface; The sheet storage box has an extending portion extending from the edge toward the second region.

Here, the first edge of the first region is an edge opposite in the second direction to the edge adjacent to the second region in the first region, and is one edge in the second direction of the opened outlet. corresponds to The expression that the first edge is connected to the top surface means that the first region after opening is connected to the top surface through all or part of the first edge. Further, the extension portion indicates a portion corresponding to the first region after opening.

With such a configuration, the extending portion corresponding to the first area after being opened is fixed to the top surface with the first edge of the first area opposite to the second area serving as the base end, The distal end can be moved up and down using the base end as an axis. Thereby, the extending portion formed after the first region is opened can serve as a cover (or lid) that covers the outlet opened on the top surface. Therefore, according to the second aspect, it is difficult for dust and dirt to enter the box body from the outlet.

Further, in the second aspect, by opening the first area while being connected to the top surface, no broken pieces are generated after opening the first area.

A third aspect of the present invention is a sheet storage box in which the first region is intermittently provided with slits penetrating the top surface at the first edge. Here, the slits provided intermittently indicate perforations. Further, the slits are intermittently provided at the first edge with the first region after opening connected to the top surface.

In the third aspect, by providing such intermittent slits on the first edge of the first area on the opposite side to the second area, the first edge of the first area is easily bent, and the first edge of the first area is easily bent. The extending portion formed after one region is opened can easily move up and down via the base end. Thereby, the extending portion formed after the first region is opened can constitute a cover that allows easy opening and closing of the outlet.

Moreover, in the third aspect, since the base end of the extending portion is configured with a perforation, the extending portion can be split along the base end. Therefore, the extending portion formed after the first region is opened can be cut off as desired.

A fourth aspect of the present invention provides a sheet storage box in which the central portion of the first region is convex toward the second region in the second direction. In the fourth aspect, the central part of the first area is convex toward the second area side in the second direction, so that after the second area is opened, the fingers can hang on the second area side of the first area. It becomes easier. Therefore, according to the fourth aspect, opening of the first region is facilitated.

Further, in the fourth aspect, since the central portion of the first region expands toward the second region in the second direction, it becomes easier to insert fingers or the like into the central portion of the open outlet. Therefore, in the fourth aspect, it is possible to easily pull out the upper sheet of the sheet stack (for example, the first sheet or the first set of sheets) that tends to clog the ejection port. Also, sheets that fall into the box during use can be easily taken out.

A fifth aspect of the present invention is that the first region has a second edge on the second region side of the first region in the second direction that extends from the central portion to the second end edge of the first region in the first direction. To provide a sheet storage box that is curved over both ends of the area. Here, the second edge of the first area is an edge adjacent to the second area in the first area, and corresponds to the other edge of the open outlet in the second direction.

Also, the second edge of the first region is curved from the center of the first region to both ends, and the width of the center of the first region in the second direction is the maximum, and the width of the center of the first region is the largest in the second direction. This indicates that the second edge of the first region is curved convexly toward the second region so that the width in the second direction is the minimum.

In the fifth aspect, the second edge of the first area is curved from the center of the first area to both ends in the first direction, so that the first area after the second area is opened is When opening the first area, the first area can be opened smoothly.

A sixth aspect of the present invention is the sheet storage box, wherein the width of the first region in the second direction of both ends is 40% or more and 70% or less of the width of the central portion. In the sixth aspect, by setting the width of both ends of the first region in the second direction to 60% or more and 80% or less of the width of the central portion, the sheet is less likely to clog the outlet, and moreover, the sheet is not clogged inside the box. Become less depressed.

Furthermore, in the sixth aspect, while suppressing the falling of the sheet in this manner, it becomes easier to insert fingers and the like into the central portion of the open outlet. Therefore, the upper sheet of the sheet stack (for example, the first sheet or the first set of sheets) that tends to get clogged in the ejection port can be pulled out more easily. Also, sheets that fall into the box during use can be taken out more easily.

A seventh aspect of the present invention is a sheet storage box in which the second area has a curved third edge on the first area side. Here, the third edge of the second region indicates the edge of the second region adjacent to the first region. In the seventh aspect, the third edge of the second area on the first area side is curved, so that after the second area is opened, the second edge of the first area on the second area side is curved. Since it is convex on the side, it becomes easier to put your fingers on the first area. Therefore, according to the seventh aspect, opening of the first region is facilitated.

An eighth aspect of the present invention is that the second area is a sheet storage box in which a fourth edge opposite to the third edge in the second direction is curved in a convex shape in a direction away from the first area. It is. Here, the third edge of the second area and the fourth edge opposite to the second direction refer to the edge of the second area opposite to the edge (third edge) on the first area side. show. The direction away from the first region refers to the direction from the first region side to the second region side along the second direction.

In the eighth aspect, the fourth edge opposite to the third edge in the second direction in the second area is bent convexly in a direction away from the first area, making it easier for fingers to hang on the second area. , the opening of the second region becomes easier. In addition, since it becomes easier to insert fingers into the second region after opening, it becomes easier to open the first region. This makes it easier to form the outlet in the eighth aspect.

In a ninth aspect of the present invention, the second area is a sheet storage box in which the fourth edge is connected to the top surface. In the ninth aspect, the fourth edge of the second region is connected to the top surface, so that the second region can be opened while being connected to the top surface.

Further, in the ninth aspect, by opening the second region while being connected to the top surface, no broken pieces are generated after opening the second region. Furthermore, in the ninth aspect, since the second region does not connect to the top surface except for the fourth edge, the second region can be easily opened even when the second region is connected to the top surface. .

A tenth aspect of the present invention is the sheet storage box, wherein a dimension of the second region in the first direction is 15% or more and 25% 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 tenth aspect, the size of the second region in the first direction is set to be 15% or more and 25% or less of the length of the first region, so that the second region has an appropriate size as a trigger for opening the outlet. It can be made into Therefore, opening the second region becomes easier. Furthermore, in the tenth aspect, opening the first region after opening the second region becomes easier. This further facilitates the formation of the outlet.

An eleventh aspect of the present invention is that the size of the second region in the second direction is 15% or more and 50% or less of the width of the central portion of the first region in the second direction. It's a box. 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 eleventh aspect, the dimension of the second region in the second direction is 15% or more and 50% or less of the width of the central portion of the first region in the second direction, so that the trigger for opening the outlet can be used as a trigger. The two areas can be made to have a more appropriate size. Therefore, in the eleventh aspect, opening of the second region becomes easier. Further, it becomes easier to open the first region after opening the second region. Thereby, in the eleventh aspect, formation of the outlet becomes easier.

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 (top side) of 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. FIG. 3 is a diagram in which the second region is opened in FIG. 2; FIG. 7 is a diagram in which the first region is opened in FIG. 6 (the outlet is opened). FIG. 8 is a diagram showing a state in which the first region constitutes an extension portion in FIG. 7; 9 is a diagram showing a state in which the sheet is supported at the outlet in FIG. 8. FIG. FIG. 9 is a view of FIG. 9 viewed from the front side of the seat storage box. FIG. 9 is a view of FIG. 9 viewed from the right side of the seat storage box. FIG. 10 is a diagram showing a state in which the extending portion in FIG. 9 has been cut away. FIG. 10 is a diagram showing a broken piece after the extension part is cut off in FIG. 9;

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 (top side) of 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. is a view of the seat storage box viewed 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 vertical 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. Can be done. 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 portions 11A and 11B of the top surface 11 of the box 10. The outlet 20 is an opening OP formed in the top surface 11 of the box 10 for pulling out the sheet S from inside the box 10 (FIGS. 7 to 9). Parts 11A and 11B of the top surface 11 are smaller than half of the top surface 11 (FIGS. 1 and 2).

In the sheet storage box 100 of 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 (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 the line of sight (Figure 5).

Further, in the sheet storage box 100, the open portions 11A and 11B of the top surface 11 have a first region 30 and a second region 40. The first region 30 has a given length L2 extending in a first direction (X direction) and a given width W2 extending in a second direction (Y direction) intersecting 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 the sheet storage box 100, 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 the sheet storage box 100, the first region 30 has a pair of ends 31 and 32 facing each other in the first direction (X direction) and a pair of ends 33 and 34 facing each other in the second direction (Y direction). have The first region 30 is surrounded by edges 31A, 32A, 33A, and 34A of the end portions 31, 32, 33, and 34, respectively.

The second region 40 has a pair of ends 41 and 42 facing in the first direction (X direction) and a pair of ends 43 and 44 facing in the second direction (Y direction). The second region 40 is surrounded by edges 41A, 42A, 43A, and 44A of end portions 41, 42, 43, and 44, respectively.

In the sheet storage box 100 of this embodiment, the second region 40 is adjacent to the center portion 35 of the first region 30 in one direction OD2 of the second direction (Y direction). Here, the central portion 35 of the first region 30 includes the center (or centroid) 35A of the first region 30, and the length L3 in the first direction (X direction) of the first region 30 is (Fig. 2). One direction of the second direction (Y direction) indicates one direction OD2 of both directions OD1 and OD2 of the second direction (Y direction) (FIGS. 2 and 5).

Further, in the sheet storage box 100, the second area 40 opens independently of the first area 30. Here, the expression that the second region 40 is opened independently of the first region 30 means that the first region 30 and the second region 40 can be opened separately.

Specifically, the first region 30 corresponds to a portion 11A of the top surface 11 formed by a portion of the perforation M surrounding the outlet 20 (perforations M1, M2) (FIGS. 1, 2, Figure 5). Further, the second region 40 corresponds to a part 11B of the top surface 11 formed by another part (perforation M3) of the perforation M surrounding the outlet 20 (FIGS. 1, 2, 5, Figure 6). The perforation M1 forming the first region 30 and the perforation M3 forming the second region 40 can be cleaved separately.

In the perforation M1 forming the first region 30, the length of each cut C1 can be 0.3 mm or more and 25 mm or less, preferably 0.5 mm or more and 20 mm or less, and more preferably 1 mm or more and 15 mm or less. It is. 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 perforation M2 forming the first region 30, the length of each cut C2 can be 0.1 mm or more and 5 mm or less, preferably 0.5 mm or more and 4 mm or less, and more preferably 0.1 mm or more and 5 mm or less. It is 5 mm or more and 3 mm or less. Moreover, the length of each tie T2 can be 0.1 mm or more and 2 mm or less, preferably 0.3 mm or more and 2.5 mm or less, and more preferably 0.5 mm or more and 1 mm or less.

Further, in the perforation M3 forming the second region 40, the length of each cut C3 can be 0.3 mm or more and 20 mm or less, preferably 0.5 mm or more and 17 mm or less, and more preferably 1 mm or more. It is 15 mm or less. Further, the length of each tie T3 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 T4 can be 5 mm or more and 30 mm or less, preferably 7 mm or more and 27 mm or less, and more preferably 10 mm or more and 25 mm or less.

In the sheet storage box 100 of this embodiment, when the perforation M1 forming the first region 30 is torn, an opening OP1 is formed in the part 11A of the top surface 11, and the perforation M3 forming the second region 40 is torn. Then, an opening OP2 is formed in a portion 11B of the top surface 11, and an outlet 20 (opening OP) is formed in the top surface 11 (FIGS. 1, 2, and 5 to 8).

The order in which the perforation M1 of the first region 30 and the perforation M3 forming the second region 40 are torn is not limited. In this embodiment, after the perforation M3 forming the second region 40 is cleaved, the perforation M1 of the first region 30 is cleaved (FIG. 2, FIGS. 5 to 7). Thereby, the second region 40 constitutes a trigger P that opens the outlet 20 (FIG. 7). The trigger P is a part (a part that becomes a trigger) for starting the operation of opening the extraction port 20.

In the sheet storage box 100 of the present embodiment, the first edge of the first area 30 on the side opposite to the second area 40 side of the first area 30 in the second direction (Y direction) is connected to the top surface 11; An extending portion F is formed that extends from the first edge toward the second region 40 (FIGS. 7 to 11).

In this embodiment, the first edge of the first region 30 corresponds to the edge 34A of the first region 30 adjacent to the second region 40 and the edge 33A opposite in the second direction (Y direction). Further, the first edge (edge 33A) of the first region 30 corresponds to one edge 22 of the opened outlet 20 in the second direction (Y direction) (FIGS. 2, 5, 8, Figure 9).

Note that the first edge (edge 33A) is connected to the top surface 11, which means that the first region after opening is connected to the top surface through all or part of the first edge (edge 33A). shows. Further, the extending portion F corresponds to the first region 30 after opening. In this embodiment, the first region 30 after opening is torn at the perforation M1, but not at the perforation M2. The first region 30 (extending portion F) after opening is connected to the top surface 11 via a part (perforation M2) of the first edge (edge 33A) (FIG. 7).

With such a configuration, in the sheet storage box 100 of the present embodiment, the extension portion F corresponding to the first region 30 after being opened is the first region F on the opposite side to the second region 40 side of the first region 30. A part of the edge (edge 33A) becomes the base end FB and is fixed to the top surface 11. The extending portion F can move the distal end FT up and down with the base end FB as an axis.

In the sheet storage box 100 of this embodiment, the first region 30 is intermittently provided with slits M2 that penetrate the top surface 11 at the first edge (edge 33A). Here, the intermittently provided slits M2 correspond to the above-mentioned perforations M2.

In this embodiment, the slit (perforation) M2 is provided at the first edge (edge 33A) in a state where the first region 30 after opening is connected to the top surface 11. Specifically, a part of the first edge (edge 33A) of the first region 30 constitutes the base end FB of the extension part F, and the perforation M2 is provided at the base end FB of the extension part F. (Figures 5 to 9).

In the sheet storage box 100 of this embodiment, the center portion 35 of the first region 30 is convex toward the second region 40 side in the second direction (Y direction). Specifically, the central portion 35 of the first region 30 constitutes a convex portion 30A that is adjacent to the second region 40 and protrudes in an arc shape toward the second region 40 (see FIGS. 1, 2, and 5). Figure 7).

In the sheet storage box 100 of the present embodiment, the first area 30 has a second edge on the second area 40 side of the first area 30 in the second direction (Y direction) from the center part 35 in the first direction (X direction). 1, 2, and 5).

In this embodiment, the second edge of the first region 30 corresponds to the edge 34A of the first region 30 to which the second region 40 is adjacent. Further, the second edge (edge 34A) of the first region 30 corresponds to the other edge 23 of the opened outlet 20 in the second direction (Y direction) (FIGS. 2, 5, 8, Figure 9).

Specifically, the width of the central portion 35 of the first region 30 in the second direction (Y direction) is the maximum (width W3), and the width of both end portions 31 and 32 of the first region 30 in the second direction (Y direction) is the maximum (width W3). The second edge (edge 34A) of the first region 30 is bent convexly toward the second region 40 so that the width is the minimum (width W2). As a result, arc-shaped curved portions 30B and 30C are formed in the first region 30 from the center portion 35 in the first direction (X direction) to both end portions 31 and 32 (FIGS. 5 to 7).

In the sheet storage box 100, the width W2 of the first region 30 in the second direction (Y direction) of both end portions 31 and 32 is 40% or more and 70% or less of the width W3 of the central portion 35, preferably 45%. 65% or less, more preferably 50% or more and 60% or less (FIG. 2).

In the sheet storage box 100 of this embodiment, the third edge of the second region 40 on the first region 30 side is curved. Note that the third edge of the second region 40 corresponds to the edge 43A of the second region 40 adjacent to the first region 30 (FIG. 2, FIGS. 5 to 7).

In the sheet storage box 100 of the present embodiment, the second area 40 has a third edge (edge 43A) and a fourth edge (edge 44A) opposite to the second direction (Y direction) that is connected to the first area 30. It bends in a convex shape in the direction away from (Fig. 2, Fig. 5 to Fig. 7).

In this embodiment, the third edge (edge 43A) of the second area 40 and the fourth edge opposite in the second direction (Y direction) are the edge 43A of the second area 40 on the first area 30 side. (FIG. 2, FIGS. 5 to 7). Here, the direction away from the first area 30 is the direction from the first area 30 side to the second area 40 side along the second direction (Y direction) (one direction OD2 of the second direction (Y direction)). ) (Fig. 2, Fig. 5).

In the sheet storage box 100 of this embodiment, the fourth edge (edge 44A) of the second region 40 is connected to the top surface 11 (FIGS. 2, 5 to 9). Specifically, the trigger P formed corresponding to the second area 40 after opening is connected to the top surface with the fourth edge (edge 44A) on the opposite side to the first area 30 serving as the base end PB. It is fixed at 11. The tip PT of the trigger P is movable around the base end PB (FIG. 7).

In the sheet storage box 100 of the present embodiment, the dimension L4 of the second region 40 in the first direction (X direction) is 15% or more and 25% or less, preferably 16% or more, of the length L2 of the first region 30. It is 24% or less, more preferably 17% or more and 23% or less (FIG. 2). Here, the dimension L4 of the second region 40 in the first direction (X direction) indicates the dimension where the length of the second region 40 is the maximum (length L4) along the first direction (X direction).

In the sheet storage box 100 of this embodiment, the dimension W4 of the second region 40 in the second direction (Y direction) is 15% or more of the width W3 of the central portion 35 of the first region 30 in the second direction (Y direction). It is 50% or less, preferably 20% or more and 45% or less, more preferably 25% or more and 40% or less (FIG. 2). Here, the dimension W4 of the second region 40 in the second direction (Y direction) indicates the dimension in which the width of the second region 40 is the maximum (width W4) along the second direction (Y direction).

The effects of this embodiment will be explained below. In this embodiment, as described above, the part (11A, 11B) of the top surface 11 corresponding to the outlet 20 is located in the second area adjacent to the central part 35 of the first area 30 in the second direction (Y direction). By opening the region 40 independently of the first region 30, the second region 40 can be opened before the first region 30 is opened (FIGS. 1, 2, and 5 to 8).

In such a configuration, the second region 40 can serve as a trigger P for opening the outlet 20 on the top surface 11 (FIGS. 5 to 7). Thereby, in this embodiment, it is possible to provide the sheet storage box 100 in which the outlet 20 can be easily formed.

Further, in this embodiment, as described above, the second region 40 is adjacent to the center portion 35 of the first region 30 in the second direction (Y direction), so that a portion of the top surface 11 (11A, 11B) After opening, the outlet 20 can be expanded in the second direction (Y direction) from the center 35 of the first region 30 to a range including the second region 40 (FIGS. 7 and 8).

With this configuration, it becomes easy to insert fingers or the like into the central portion 21 of the open outlet 20. Therefore, in this embodiment, the upper sheet S (for example, the first sheet or the first set of sheets S1) of the sheet stack SL that tends to get clogged in the extraction port 20 can also be easily pulled out. Furthermore, sheets S that have fallen into the box body 10 during use can be easily taken out (FIGS. 9 to 11).

In this embodiment, as described above, the extension portion F corresponding to the first region 30 after being opened uses a part of the first edge (edge 33A) of the first region 30 as the base end FB. It is fixed to the top surface 11, and the distal end FT can be moved up and down with the base end FB as an axis. Thereby, the extending portion F corresponding to the first region 30 becomes a cover (or lid) F that covers the outlet 20 opened in the top surface 11. Therefore, in this embodiment, it is difficult for dust and dirt to enter the box body 10 from the outlet 20 (FIGS. 7 and 8).

Further, in this embodiment, by opening the first region 30 while being connected to the top surface 11 in this manner, it is possible to prevent broken pieces from being generated after the first region 30 is opened.

In this embodiment, as described above, by providing the intermittent slits (perforations) M2 on the first edge (edge 33A) of the first area 30 on the opposite side to the second area 40, the first The first end edge (edge 33A) of the region 30 becomes easier to bend, and the extension portion F formed after the first region 30 is opened becomes easier to move up and down via the base end FB. Thereby, the extending portion F formed after the first region 30 is opened can constitute a cover F that allows easy opening and closing of the outlet 20 (FIGS. 7 and 8).

Moreover, in this embodiment, since the base end FB of the extension part F is configured with the perforation M2, the extension part F can be split along the base end FB. Therefore, the extending portion F formed after the first region 30 is opened can be cut out as desired (FIGS. 8 and 12). In addition, the extension part F is cut off from the top surface 11 of the box body 10 by tearing the slit (perforation) M2 along the base end FB, and a broken piece B is generated (FIGS. 12 and 13). reference).

In this embodiment, as described above, the center portion 35 of the first region 30 is convex toward the second region 40 side in the second direction (Y direction), so that after the second region 40 is opened, It becomes easier to put fingers on the second region 40 side of the first region 30. Therefore, according to this embodiment, opening of the first region 30 becomes easy (FIGS. 7 and 8).

In addition, in this embodiment, since the central portion 35 of the first region 30 expands toward the second region 40 in the second direction (Y direction), it becomes easier to insert fingers or the like into the central portion 21 of the open outlet 20 ( Figure 8). Therefore, in this embodiment, the upper sheet S (for example, the first sheet or the first set of sheets S1) of the sheet stack SL that tends to get clogged in the extraction port 20 can also be easily pulled out. Furthermore, sheets S that have fallen into the box body 10 during use can be easily taken out (FIGS. 9 to 11).

In this embodiment, as described above, the second edge (edge 34A) of the first region 30 extends from the center 35 of the first region 30 to both ends 31 and 32 in the first direction (X direction). curve. Thereby, when the first region 30 is opened after the second region 40 is opened, the first region 30 can be opened smoothly (FIGS. 2, 5 to 8).

In this embodiment, as described above, by setting the width W2 of both ends 31 and 32 of the first region 30 in the second direction (Y direction) to 40% or more and 70% or less of the width W3 of the central portion 35, The sheet S is less likely to become clogged in the outlet 20 (opening OP), and moreover, the sheet S is less likely to fall into the box body 10 (FIGS. 2, 8 to 11).

In addition, in this embodiment, while suppressing the fall of the sheet S in this way, it becomes easier to insert fingers or the like into the central part 21 of the open outlet 20 (FIG. 8). The upper sheet S (for example, the first sheet or the first set of sheets S1) of the stacked body SL can also be pulled out more easily. Further, the sheet S that has fallen into the box body 10 during use can be taken out more easily (FIGS. 9 to 11).

In this embodiment, as described above, the third edge (edge 43A) of the second area 40 on the first area 30 side is curved, so that after the second area 40 is opened, the third edge (edge 43A) of the second area 40 on the first area 30 side is curved. The second edge (edge 34A) on the second region 40 side is convex toward the second region 40 side. Therefore, it becomes easier to put the fingers on the first region 30, and the opening of the first region 30 becomes easier (FIGS. 5 to 8).

In the present embodiment, as described above, in the second region 40, the fourth edge (edge 44A) opposite to the third edge (edge 43A) in the second direction (Y direction) is separated from the first region 30. By bending in a convex shape in the direction of separation, it becomes easier to put fingers on the second region 40, and the opening of the second region 40 becomes easier (FIGS. 2, 5, and 7). Furthermore, since it becomes easier to insert fingers into the second region 40 after opening, the first region 30 can be opened more easily (FIGS. 7 and 8). This makes it easier to form the outlet 20 in this embodiment.

In this embodiment, as described above, the fourth edge (edge 44A) of the second area 40 connects to the top surface 11, so that the second area 40 opens while being connected to the top surface 11. (Figure 2, Figures 5 to 7). Furthermore, in this embodiment, by opening the second region 40 while being connected to the top surface 11, no broken pieces are generated after the second region 40 is opened (FIGS. 2, 5 to 7).

Furthermore, in the present embodiment, the second region 40 includes other portions (edges 41A, 42A, 43A) other than PB (T4) (portion indicated by a dotted line) corresponding to the fourth edge (edge 44A). ) is not connected to the top surface 11, opening of the second region 40 is easy even when the second region 40 is connected to the top surface 11 (FIGS. 2, 5 to 8).

Specifically, by pushing the second region 40 (trigger P) after opening into the inside of the box body 10 from the top surface 11 side, the trigger P is opened while the base end PB of the trigger P is connected to the top surface 11. A gap GP is generated between the tip PT of and the second edge (edge 34A) of the first region 30. By inserting a finger into this gap GP, the second end edge (edge 34A) of the first region 30 can be easily hooked onto the second end edge (edge 34A), and the first region 30 can be easily opened (FIGS. 6 to 8). ).

In this embodiment, as described above, by setting the dimension L4 of the second region 40 in the first direction (X direction) to 15% or more and 25% or less of the length L2 of the first region 30, the outlet 20 can be expanded. The second region 40 can be made to have an appropriate size as a trigger P for opening (FIG. 2). Therefore, opening of the second region 40 becomes easier (FIGS. 2, 5 to 7). Furthermore, opening the first region 30 after opening the second region 40 becomes easier (FIGS. 7 and 8).

In the present embodiment, as described above, the dimension W4 of the second region 40 in the second direction (Y direction) is set to 15% or more of the width W3 of the central portion 35 of the first region 30 in the second direction (Y direction). % or less, the second region 40 can be made to have a more appropriate size as a trigger P for opening the outlet 20. Therefore, opening of the second region 40 becomes easier. Furthermore, opening the first region 30 after opening the second region 40 becomes easier (FIGS. 2, 5 to 8).

Hereinafter, the present invention will be further described in detail using Examples. Evaluation of Examples and Comparative Examples was 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 (FIGS. 1 to 8).

[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 stored in the box 10 so that the stacking direction SD was in the height direction (Z direction) of the sheet storage box 100 (FIGS. 1 to 3).

[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

[Occurrence of fragments]
As for the generation of fragments in the sheet storage box (test specimen), it was confirmed whether or not fragments (cut ends, small pieces, fragments, etc. cut off from the box body 10) were generated when the outlet 20 was opened. The occurrence of fragments was evaluated based on the following criteria.
〇: No fragments were generated. ×: Fragments were generated.

[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 150 gf or less when the 10th 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 150 gf. In this case, it was classified as defective (sheet S was difficult to take out).

[Sheet drop]
The number of times the sheet S was not held in the take-out port 20 and fell into the box body 10 when 150 sets of sheets S were pulled out to the last set, as the number of times the sheet S fell into the box body 10 in the sheet storage box (test specimen). was measured. The evaluation criteria for depression is that when the average value of the number of times the sheet S has fallen 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 (the sheet did not fall). In this case, it was considered defective (the sheet fell in).

Examples and comparative examples will be described below.

[Example 1]
As a test specimen, parts 11A and 11B of the top surface 11 of the box 10 have a length L2 extending in the first direction (X direction) and a second direction (Y direction) intersecting the first direction (X direction). The first region 30 has a width W2 extending to When the second area 40 opens, a hanger-shaped outlet 20 (opening OP) is formed on the top surface 11, the first area 30 constitutes a cover F that covers the outlet 20, and the second area 40 forms a cover F that covers the outlet 20. The sheet storage box 100 constituting the trigger P for opening the sheet was evaluated for its unsealability, generation of broken pieces, retrieval performance, retrieval resistance value, and sheet depression. 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 (window film) is placed on the back side of the top to cover the outlet. Evaluation was carried out in the same manner as in Example 1, except that the film was pasted and a slit (the sheet was pulled out by tearing) extending in the longitudinal direction of the outlet was provided in the film. 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 region 40 adjacent to the central portion 35 of the first region 30 serves as the trigger P for opening the outlet 20, and the first region 30 constitutes the cover F that covers the outlet 20 in the sheet storage box 100. was good in terms of ease of opening, occurrence of broken pieces, ease of removal, resistance to removal, and sheet depression (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 opening performance, generation of broken pieces, and removal performance (Comparative Example 1). In addition, the sheet storage box without the window film had poor opening performance, generation of broken pieces, removal performance, and dropability (Comparative Example 2). Furthermore, a sheet storage box that does not have a window film and a trigger on a part of the top surface (the end of the outlet), but does not constitute a cover, has problems with the occurrence of broken pieces, difficulty in taking out the box, and difficulty in taking out the box. The value and dropability were poor (Comparative Example 3).

From these results, it can be seen that a part of the top surface of the box has a first region having a given length extending in the first direction and a given width extending in the second direction intersecting the first direction; A sheet storage box that has a central part of the area and a second area adjacent to one of the second directions, and the second area opens independently of the first area, is easy to form an outlet, It was found that no broken pieces were generated, the sheet was easy to take out, and the sheet was difficult to fall into.

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, S1 Sheet (tissue paper)
SL Sheet laminate SD Stacking direction 10 Box 11 Top surface 11A, 11B Part 12 Bottom surface 13, 14 Side surface 15, 16 Gable surface 20 Output port 21 Center part 22 One edge 23 Other edge 30 First area 30A Convex portion 30B, 30C Curved portion 31, 32, 33, 34 End portion 31A Edge 32A Edge 33A Edge (first edge)
34A Edge (second edge)
35 Central part 35A Center (centroid)
40 Second region 41, 42, 43, 44 End portion 41A Edge 42A Edge 43A Edge (third edge)
44A Edge (4th edge)
OD One direction of the second direction L1, L2, L3, L4 Length W1, W2, W3, W4 Width H Height M, M1, M3 Perforation M2 Slit (perforation)
C, C1, C2, C3 Cut T, T1, T2, T3, T4 Tie P Trigger PB Base end PT Tip F Extension part (cover)
FB Base end FT Tip OP, OP1, OP2 Opening B Fragment

Claims (10)

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 second region adjacent to the center of the first region and one of the second directions;
The second region opens independently from the first region,
In the first region, a second edge of the first region on the second region side in the second direction extends from the center to both ends of the first region in the first direction. curved so as to be convex in a direction opposite to the one direction;
The sheet storage box , wherein each edge of the both end portions is a straight line extending in the second direction . A first edge of the first area opposite to the second area side of the first area in the second direction is connected to the top surface, and extends from the first edge toward the second area side. The sheet storage box according to claim 1, which constitutes an extending portion. 3. The sheet storage box according to claim 2, wherein the first region has slits intermittently provided at the first edge to penetrate the top surface. The sheet storage box according to any one of claims 1 to 3, wherein the central portion of the first region is convex toward the second region in the second direction. The sheet storage box according to any one of claims 1 to 4, wherein the width of the first region in the second direction of both end portions is 40% or more and 70% or less of the width of the central portion. . The sheet storage box according to any one of claims 1 to 5 , wherein the second area has a curved third edge on the first area side. 7. The sheet storage box according to claim 6 , wherein the second area has a fourth edge opposite to the third edge in the second direction that curves convexly in a direction away from the first area. The seat storage box according to claim 7 , wherein the fourth edge of the second region is connected to the top surface. The sheet storage box according to any one of claims 1 to 8 , wherein a dimension of the second region in the first direction is 15% or more and 25% or less of the length of the first region. The dimension of the second region in the second direction is 15% or more and 50% or less of the width of the central portion of the first region in the second direction, according to any one of claims 1 to 9 . seat storage box.

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