WO2023084798A1

WO2023084798A1 - Sheet structure and outer packaging body

Info

Publication number: WO2023084798A1
Application number: PCT/JP2021/046836
Authority: WO
Inventors: 大輔三宅
Original assignee: ユニ・チャーム株式会社
Priority date: 2021-11-12
Filing date: 2021-12-17
Publication date: 2023-05-19
Also published as: JP2023072627A; JP2023072543A; JP7048811B1

Abstract

Provided are a sheet structure and an outer packaging body which suppress a positional shift of a sheet laminate inside a packaging body, and make it easy to remove the sheets one at a time. A sheet structure (1) has a sheet laminate (50) obtained by layering multiple sheets, and a packaging body (2) which comprises a packaging sheet and packages the sheet laminate therein. The packaging body has a packaging space (3) for packaging a sheet laminate therein, and a packaging opening (7) which functions as the sheet removal port. The length (T3) of the packaging space in the thickness direction in the natural state of the sheet structure is at least 50mm. A packaging joining part (5) for joining packaging sheets to one another is provided in the vertical direction on the outer surface of each of a pair of vertical lateral surfaces (15). The packaging body is provided with four movement-restricting parts (40) which restrict the movement of a sheet laminate inside the packaging space, and extend in the four corners where the vertical lateral surfaces and horizontal lateral surfaces intersect one another from the outer end sections of the vertical lateral surfaces in the horizontal direction to the outer end sections of the horizontal lateral surfaces in the vertical direction. The movement-restricting parts reach the packaging joining part (5). The total length (X41+X42) of the movement-restricting parts (40) in the vertical direction in the packaging joining part is at least 40% of the total length (X5) of the packaging joining part in the vertical direction.

Description

Seat structure and exterior body

The present invention relates to a sheet structure and an outer package in which a sheet laminate of wet tissues and the like is packed.

A sheet structure has been provided that includes a sheet laminate in which a plurality of sheets are laminated in the thickness direction and a packaging body in which the sheet laminate is packaged (see, for example, Patent Document 1). The packaging body is formed with a packaging opening that serves as an outlet for the sheet. A user removes the sheet through the packaging opening. The seat structure is used in the state of the seat structure, or in the state of being accommodated in an exterior body (for example, Patent Document 2). The exterior body is formed with an exterior opening serving as a sheet outlet. When using the sheet structure housed in the exterior body, the sheet is taken out through the packaging opening and the exterior opening.

Japanese Unexamined Patent Application Publication No. 2018-33560 JP 2020-196517 A

Generally, the packaging space of the package is larger than the volume of the sheet laminate. Therefore, when the sheet structure is used, the position of the sheet stack may shift within the package. When the positional deviation occurs, it is difficult to guide each sheet to the packaging opening, and the sheet may be unintentionally folded, or multiple sheets may be taken out, making it difficult to take out the sheets one by one. rice field. Further, when the sheet structure is used in a state in which it is accommodated in the outer package, the sheet structure is accommodated in the outer package with the outer shape of the sheet stack as a reference in a state in which the position of the packaging opening with respect to the sheet stack is displaced. As a result, the positions of the packaging opening and the exterior opening are misaligned, making it difficult to take out the sheet through the exterior opening. In particular, in any mode of use, when the thickness of the sheet stack is large, such as when the number of sheets in the sheet stack is large, when the number of remaining sheets decreases, the volume of the packaging space and the thickness of the sheet stack increase. The difference in volume became large, and the shift of the sheet stack in the package tended to become conspicuous.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a sheet structure and an outer package that suppress the positional deviation of the sheet stack in the package and facilitate taking out the sheets one by one. do.

The sheet structure according to one aspect includes a longitudinal direction (X) and a transverse direction (Y) that extend in the plane direction of the sheet and are orthogonal to each other, a thickness direction (T) that extends in the stacking direction of the sheet, and the sheet It has a sheet laminate (50) in which a plurality of layers are laminated, and a package (2) composed of a packaging sheet and packaging the sheet laminate. The packaging body includes a packaging space for packaging the sheet laminate, a packaging opening (7) serving as an outlet for the sheets, and an upper surface (7) extending in the vertical direction and the horizontal direction and formed with the packaging opening ( 11), a lower surface (12) facing the upper surface, a pair of vertical side surfaces (15) extending in the vertical direction and the thickness direction and arranged to face each other, and in the horizontal direction and the thickness direction a pair of lateral sides (17) extending and arranged opposite each other. In the natural state of the sheet structure, the length (T3) in the thickness direction of the packaging space is 50 mm or more. On the outer surface of each of the pair of vertical side surfaces (15), packaging joints (5) where the packaging sheets are joined are provided along the vertical direction. In the package, at four corners where the longitudinal side and the lateral side intersect, the sheet in the packaging space extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side. Four movement restricting portions (40) are provided to restrict movement of the laminate. The movement restricting portion also reaches the packaging joint (5). The total longitudinal length (X41+X42) of the movement restricting portion (40) at the packaging joint is 40% or more of the total longitudinal length (X5) of the packaging joint.

An exterior body according to one aspect includes a sheet structure (1 ), has an exterior opening (67) that overlaps at least a portion of the packaging opening and serves as an outlet for the sheet. The exterior body has a vertical direction and a horizontal direction extending in the planar direction of the sheet and perpendicular to each other, and a thickness direction extending in the stacking direction of the sheet. The lateral length of the packaging space (3) is (Y3), the lateral length of the sheet stack is (Y50), and the lateral length of the exterior opening is (Y67). Then, Y3-Y50<Y67 is satisfied.

1 is a perspective view of a seat structure according to an embodiment; FIG. 2 is a cross-sectional view of the seat structure along line AA shown in FIG. 1. FIG. 3 is a cross-sectional view of the seat structure taken along line BB shown in FIG. 1. FIG. FIG. 4 is a plan view of the seat structure. FIG. 5 is a diagram schematically showing an example of the manufacturing process of the sheet structure. FIG. 6 is a perspective view of an exterior body and a seat structure. FIG. 7 is a diagram of the exterior space of the exterior body 60 viewed from the bottom side. FIG. 8 is a schematic cross-sectional view of an exterior body according to a modification.

(1) Overview of Embodiments At least the following matters will become clear from the description of this specification and the accompanying drawings. The sheet structure according to one aspect includes a longitudinal direction (X) and a transverse direction (Y) that extend in the plane direction of the sheet and are orthogonal to each other, a thickness direction (T) that extends in the stacking direction of the sheet, and the sheet It has a sheet laminate (50) in which a plurality of layers are laminated, and a package (2) composed of a packaging sheet and packaging the sheet laminate. The packaging body includes a packaging space for packaging the sheet laminate, a packaging opening (7) serving as an outlet for the sheets, and an upper surface (7) extending in the vertical direction and the horizontal direction and formed with the packaging opening ( 11), a lower surface (12) facing the upper surface, a pair of vertical side surfaces (15) extending in the vertical direction and the thickness direction and arranged to face each other, and in the horizontal direction and the thickness direction a pair of lateral sides (17) extending and arranged opposite each other. In the natural state of the sheet structure, the length (T3) in the thickness direction of the packaging space is 50 mm or more. On the outer surface of each of the pair of vertical side surfaces (15), packaging joints (5) where the packaging sheets are joined are provided along the vertical direction. In the package, at four corners where the longitudinal side and the lateral side intersect, the sheet in the packaging space extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side. Four movement restricting portions (40) are provided to restrict movement of the laminate. The movement restricting portion also reaches the packaging joint (5). The total longitudinal length (X41+X42) of the movement restricting portion (40) at the packaging joint is 40% or more of the total longitudinal length (X5) of the packaging joint. The sheet stack accommodated in the packaging space can be moved to the center side in the plane and movement can be restricted by the movement regulating portions provided at the four corners in the plane direction of the package. Therefore, it is possible to suppress positional deviation of the sheet stack in the package. In particular, in a so-called large-capacity sheet structure in which the thickness of the packaging space is 50 mm or more, the movement of the sheet stack in the plane direction is restricted by the movement restricting portion, so that it can be properly taken out through the packaging opening. , the sheets can be continuously taken out one by one even when the remaining number of sheets is small.

According to a preferred aspect, the movement restricting part (40) extends into the packaging space (3) from each of the upper surface (11) and the lower surface (12) and reaches the packaging joint. According to this aspect, according to the configuration, the movement of the sheet stack in the thickness direction can also be regulated by the movement regulating portion. In particular, since the movement regulating portion extends from the lower surface side, the movement of the stacked sheets can be continuously regulated even when the number of remaining sheets is small, and the user can appropriately perform sheet by sheet until the last sheet. can be retrieved properly.

According to a preferred aspect, the longitudinal inner edge (40X2) of the movement restricting portion is located inside the longitudinal outer edge (7X1) of the packaging opening. According to this aspect, since the packaging opening is in the range (G40X) sandwiched in the vertical direction by the movement restricting portion, the center of the stack of sheets in the vertical direction can be aligned so as to overlap the packaging opening (7).

According to a preferred aspect, the lateral inner edge (40Y2) of the movement restricting portion is located inside the lateral direction (Y) of the lateral outer edge (50Y1) of the sheet stack. To position. The vertical inner edge (40X2) of the movement restricting portion is located inside the vertical outer edge (50X1) of the sheet stack. The inner edge (40T2) in the thickness direction of the movement restricting portion is located inside the outer edge (50T1) in the thickness direction of the laminated sheet body in the thickness direction. According to this aspect, it is possible to position the sheet stack by restricting the movement of the sheet stack in any of the thickness direction, the horizontal direction, and the vertical direction by the movement restricting portion.

According to a preferred aspect, if the lateral length of the packaging space is Y3, the lateral length of the sheet laminate is Y50, and the lateral length of the packaging opening is Y7 , Y3−Y50<Y7. According to this aspect, even if the position of the laminated sheet body is shifted in the lateral direction within the package, the packaging opening is arranged so as to overlap the laminated sheet body. As such, sheets can continue to be removed through the packaging opening.

According to a preferred aspect, the lateral inner edge (5Y2) of the packaging joint (5) is located closer to the lower surface (12) than the center (3T3) in the thickness direction of the packaging space. . According to this aspect, the movement restricting portion reaches the packaging joint portion. Since the packaging joint portion is located on the lower surface side of the center of the packaging space in the thickness direction, that is, the packaging joint portion is biased toward the lower surface side in the thickness direction, the remaining number of sheets is reduced by the movement restricting portion. Positioning can be performed. Therefore, especially when the number of remaining sheets is small and the position of the sheets tends to move, the sheets can be arranged at appropriate positions and the sheets can be continuously taken out one by one.

According to a preferred aspect, at least one of the lateral length (Y7) of the packaging opening and the longitudinal length (X7) of the packaging opening is the thickness of the packaging space in the thickness direction. longer than the length (T3). According to this aspect, since either one of the length of the packaging opening in the horizontal direction and the length of the packaging opening in the vertical direction is longer than the length of the packaging space in the thickness direction, the lower surface of the packaging space can be reached. is easy to reach, and it is easy to take out the sheets one by one through the packaging opening until the last sheet.

An exterior body according to one aspect includes a sheet structure (1 ), has an exterior opening (67) that overlaps at least a portion of the packaging opening and serves as an outlet for the sheet. The exterior body has a vertical direction and a horizontal direction extending in the planar direction of the sheet and perpendicular to each other, and a thickness direction extending in the stacking direction of the sheet. The lateral length of the packaging space (3) is (Y3), the lateral length of the sheet stack is (Y50), and the lateral length of the exterior opening is (Y67). Then, Y3-Y50<Y67 is satisfied. According to this aspect, even if the position of the sheet stack is shifted in the lateral direction within the package, the exterior opening is arranged so as to overlap the sheet stack, and the sheets can be continuously taken out through the exterior opening.

According to a preferred aspect, the exterior body has an exterior space (69) that accommodates the seat structure. At least one of the lateral length (Y67) of the exterior opening and the vertical length (X67) of the exterior opening is greater than the length (T69) of the exterior space in the thickness direction. too long. According to this aspect, since either one of the length of the exterior opening in the horizontal direction and the length of the packaging opening in the vertical direction is longer than the length of the exterior space in the thickness direction, the lower surface of the exterior space can be reached. is easy to reach and even the last sheet is easy to take out through the exterior opening.

According to a preferred aspect, the exterior body has an exterior space that accommodates the sheet structure, and a rib (70) that protrudes inward in the exterior space and restricts movement of the package. The packaging body includes a packaging space for packaging the sheet laminate, an upper surface extending in the vertical direction and the horizontal direction and having the packaging opening formed therein, a lower surface facing the upper surface, the vertical direction and the It has a pair of vertical side surfaces extending in the thickness direction and arranged to face each other, and a pair of horizontal side surfaces extending in the horizontal direction and the thickness direction and arranged to face each other. The rib (70) extends inward in the lateral direction from each of the lateral end surfaces of the exterior space. In the package, at four corners where the longitudinal side and the lateral side intersect, the sheet in the packaging space extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side. Four movement restricting portions (40) are provided to restrict movement of the laminate. The lateral spacing (G70Y) between the ribs is shorter than the lateral length (Y2) of the package and longer than the lateral spacing (G40Y) between the movement restrictors. According to this aspect, since the distance between the movement restricting portions is shorter than the distance between the ribs in the horizontal direction, the movement of the package is restricted by the ribs, and the movement of the stack of sheets in the package is restricted by the movement restriction portion. can be regulated. That is, it is possible to regulate the movement of the sheet stack in stages, position the sheet stack, and suppress the deviation of the sheet stack.

According to a preferred aspect, the exterior body has an exterior space that houses the sheet structure, and a rib that protrudes inward in the exterior space and restricts movement of the package. The packaging body includes a packaging space for packaging the sheet laminate, an upper surface extending in the vertical direction and the horizontal direction and having the packaging opening formed therein, a lower surface facing the upper surface, the vertical direction and the It has a pair of vertical side surfaces extending in the thickness direction and arranged to face each other, and a pair of horizontal side surfaces extending in the horizontal direction and the thickness direction and arranged to face each other. The ribs extend inward in the vertical direction from both vertical end surfaces of the exterior space. In the package, at four corners where the longitudinal side and the lateral side intersect, the sheet in the packaging space extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side. Four movement restricting portions are provided to restrict the movement of the laminate. The longitudinal spacing (G70X) of the ribs is shorter than the longitudinal length (X2) of the package and longer than the longitudinal spacing (G40X) between the movement restricting portions (40). . According to this aspect, since the interval between the movement restricting portions is shorter than the interval between the ribs in the vertical direction, the movement of the package is restricted by the ribs, and the movement of the stack of sheets in the package is restricted by the movement restriction portion. can be regulated. That is, it is possible to regulate the movement of the sheet stack in stages, position the sheet stack, and suppress the deviation of the sheet stack.

According to a preferred aspect, the exterior body has an exterior space that houses the sheet structure, and a rib that protrudes inward in the exterior space and restricts movement of the package. The packaging body includes a packaging space for packaging the sheet laminate, an upper surface extending in the vertical direction and the horizontal direction and having the packaging opening formed therein, a lower surface facing the upper surface, the vertical direction and the It has a pair of vertical side surfaces extending in the thickness direction and arranged to face each other, and a pair of horizontal side surfaces extending in the horizontal direction and the thickness direction and arranged to face each other. The rib extends inward in the thickness direction from at least one of both end faces in the thickness direction of the exterior space. The package body is provided with a movement restricting portion that extends inward in the thickness direction from the top surface and the bottom surface and restricts movement of the sheet stack within the packaging space. The distance between the ribs in the thickness direction or the distance between the inner edge of the rib in the thickness direction and the upper end or the lower end of the exterior space facing the rib (G70T) is the length of the package in the thickness direction ( T2) and longer than the thickness-direction interval (G40T) between the movement restricting portions (40) at the lateral outer edges of the sheet stack. According to this aspect, since the interval between the movement restricting portions is shorter than the interval between the ribs in the thickness direction, the movement of the package is restricted by the ribs, and the movement of the stacked sheets in the package is restricted by the movement restriction portion. can be regulated. That is, it is possible to regulate the movement of the sheet stack in stages, position the sheet stack, and suppress the deviation of the sheet stack.

(2) Overall Schematic Configuration of Seat Structure Hereinafter, a seat structure 1 and an exterior body 60 according to an embodiment will be described with reference to the drawings. In addition, in the following description of the drawings, the same or similar reference numerals are given to the same or similar parts. However, it should be noted that the drawings are schematic, and the ratio of each dimension is different from the actual one. Therefore, specific dimensions and the like should be determined with reference to the following description. In addition, portions having different dimensional relationships and ratios may also be included between the drawings.

FIG. 1 is a perspective view of the seat structure 1. FIG. 2 is a sectional view of the seat structure 1 taken along line AA shown in FIG. 1, and FIG. 3 is a sectional view of the seat structure 1 taken along line BB shown in FIG. FIG. 4 is a plan view of the seat structure 1. FIG. The sheet structure 1 has a vertical direction X and a horizontal direction Y extending in the planar direction of the sheets 51 and orthogonal to each other, and a thickness direction T extending in the stacking direction of the sheets 51 . The sheet structure 1 includes a sheet laminate 50 in which a plurality of sheets 51 are laminated, and a package 2 in which the sheet laminate 50 is packaged.

The packaging body 2 is composed of a packaging sheet 4. The packaging body 2 should just have the packaging sheet 4 at least, and may have materials (for example, the seal|sticker mentioned later) other than the packaging sheet 4. FIG. The packaging sheet 4 may be made of a film. The film material is not particularly limited, but may be, for example, a mixture of polypropylene and polyethylene. The packaging body 2 has a packaging space 3 for packaging the sheet stack 50 and a packaging opening 7 serving as an outlet for the sheet 51 . The packaging opening 7 may be arranged on the top surface 11 . That is, the surface in which the packaging opening 7 is formed may constitute the upper surface 11 . The packaging opening 7 may be covered by a peelable seal (not shown) before being covered by a cover portion 61 of the exterior body 60, which will be described later. When the user attaches the cover portion 61 to the package 2 , the user may peel off the seal to expose the package opening 7 and cover the package opening 7 with the cover portion 61 . The sheet structure 1 may be used together with the exterior body 60, or may be used in the state of the sheet structure 1 by opening and closing the packaging opening 7 via a seal.

The dimensions of the packaging opening 7 should be such that each sheet 51 can be pulled out. The shape of the packaging opening 7 may be an ellipse, a laterally long (longitudinally) circular shape, or a perfect circular shape in a plan view, and the shape is not limited. Preferably, in order to prevent the sheet 51 from being caught, it may be curved and not have sharp corners. The packaging opening 7 of this embodiment has a vertically long shape in which the length in the vertical direction X is longer than the length in the horizontal direction Y. As shown in FIG. The packaging opening 7 may be arranged centrally in the longitudinal direction X and transversely Y of the package 2 .

The package 2 has an upper surface 11, a lower surface 12, a pair of vertical side surfaces 15, and a pair of horizontal side surfaces 17. The upper surface 11 and the lower surface 12 are surfaces extending in the vertical direction X and the horizontal direction Y and along the planar direction of the sheet 51 . A packaging opening 7 is formed in the upper surface 11 . The upper surface 11 and the lower surface 12 are arranged across the packaging space 3 in the thickness direction T. As shown in FIG. The vertical side surface 15 is a surface extending in the vertical direction X and the thickness direction T. As shown in FIG. The pair of vertical side surfaces 15 are arranged across the packaging space 3 in the horizontal direction Y. As shown in FIG. The lateral side surface 17 is a surface extending in the lateral direction Y and the thickness direction T. As shown in FIG. The pair of lateral sides 17 are arranged in the vertical direction X with the packaging space 3 interposed therebetween. The packaging space 3 is sandwiched between the inner surfaces of the vertical side surfaces 15 in the horizontal direction Y, between the inner surfaces of the horizontal side surfaces 17 in the vertical direction X, and between the inner surface of the upper surface 11 and the inner surface of the lower surface 12 in the thickness direction T. . The package may be substantially rectangular parallelepiped. Each face may be a rectangular face. Moreover, the surfaces may not intersect perpendicularly at the boundary where they intersect with each other, but may intersect in a curved line.

The sheet 51 of the sheet laminate 50 may be a dry sheet or a wet sheet (for example, wet tissue). The sheet stack 50 is folded at least with a folding line FL along the lateral direction Y as a base point. Sheets 51 adjacent to each other in the thickness direction T are alternately arranged in a folded state.

In the natural state of the sheet structure 1, the length T3 in the thickness direction T of the packaging space 3 may be 50 mm or more, preferably 55 mm or more. The length T50 in the thickness direction T of the sheet laminate 50 before use may be 45 mm or more, preferably 50 mm or more. The number of sheets 51 in the sheet stack 50 before use may be 70 or more, preferably 80 or more. That is, the seat structure 1 of this embodiment is a so-called large-capacity seat structure. In a configuration in which the thickness of the sheet stack 50 and the thickness of the packaging space 3 are large, such as when the number of sheets 51 in the sheet stack 50 is large, the volume of the packaging space 3 and the stacking of sheets decrease when the number of remaining sheets 51 decreases. The difference in the volume of the body 50 becomes large, and the deviation of the sheet stack 50 within the package tends to become noticeable. The present embodiment is configured so as to suppress misalignment of the sheet stack 50 in a mode in which the length of the packaging space 3 in the thickness direction T is long. A configuration for suppressing the positional deviation of the sheet stack 50 will be described later in detail.

Here, the natural state of the sheet structure 1 means that the sheet structure 1 is placed on a flat plate, and the packaging joints 5 on both sides are separated until wrinkles on the upper surface 11 and the lower surface 12 of the package 2 are no longer visible. The packaging joint portion 5 is pulled outward in the lateral direction Y by grasping it by hand. Next, with the pulling hand removed, the sample was left for 30 minutes at a temperature of 25°C. In the following description, unless otherwise specified, the positional relationship, length, and spacing of each member are assumed to be in a natural state and before use of the sheet structure (a state in which all sheets are laminated). .

The outer surface of each of the pair of vertical side surfaces 15 is provided along the vertical direction X with a packaging joint portion 5 that joins the packaging sheets 4 together. The length in the longitudinal direction X of the packaging joint 5 may correspond to the length in the longitudinal direction X of the longitudinal side surface 15 , and to the length in the longitudinal direction X of the upper surface 11 and the length in the longitudinal direction X of the lower surface 12 . You can do it. The package joint portion 5 extends inward in the lateral direction Y from the edge of the package 2 in the lateral direction Y, and has a predetermined length in the lateral direction Y. As shown in FIG. The packaging joint portion 5 may be a portion where the packaging sheets 4 are joined together by a welding means such as heat welding or ultrasonic welding, or may be a portion joined via an adhesive. A pair of packaging joints 5 are provided with an interval in the horizontal direction Y, and in the plan view shown in FIG. and have The first packaging joint portion 5A and the second packaging joint portion 5B sandwich the packaging space 3 in the horizontal direction Y. As shown in FIG. An inner edge 5Y2 in the lateral direction Y of each packaging joint 5 constitutes an outer edge 3Y1 in the lateral direction Y of the packaging space 3. As shown in FIG. That is, the length Y3 of the packaging space 3 in the horizontal direction Y is the distance between the inner edges 5Y2 of the packaging joint 5 in the horizontal direction.

FIG. 5 is a diagram schematically showing an example of the manufacturing process of the seat structure 1. FIG. Manufacturing the seat structure 1 may include at least steps 1 to 4. FIG. Step 1 (S1) transports the tubular packaging sheet 4 in the transport direction MD. In step 2 ( S<b>2 ), after step 1 , the sheet laminate 50 is placed in the hollow portion of the tubular packaging sheet 4 . In step 3 (S3), after step 2, the side surface of the packaging sheet 4 along the conveying direction MD (the side surface extending in the conveying direction MD from the lateral side surface) is directed toward the inner side of the cross direction CD orthogonal to the conveying direction MD. The pressing member is pushed in by pressing, and the packaging sheet 4 is folded inward in the cross direction CD. In step 4 (S4), after step 3, the folded packaging sheets 4 are joined together to form packaging joints 5. FIG. The packaging joint portion 5 is formed over the entire crossing direction (vertical direction) of the packaging body 2 . The packaging joint portion 5 is a two-layer portion (see FIG. 2) in which two packaging sheets 4, a sheet on the upper surface 11 side and a sheet on the lower surface 12 side, are joined, and between the two packaging sheets 4. A four-layer portion (see FIG. 3) in which the folded packaging sheet 4 is sandwiched and four layers of the packaging sheet 4 are joined. In the four-layer portion, the folded packaging sheet 4 extends inward in the longitudinal direction X and inward in the lateral direction Y between the two packaging sheets 4 . The folded packaging sheet 4 extends into the packaging space 3 and constitutes a movement restricting portion 40 of the present invention.

Next, a detailed description will be given of a configuration for suppressing displacement of the sheet stack 50 in the sheet structure 1 configured as described above. The package 2 of the sheet structure 1 includes a movement restricting portion 40 that restricts movement of the sheet stack 50 within the packaging space 3 . The movement restricting portions 40 are provided at four corners where the vertical side surface 15 and the horizontal side surface 17 intersect in plan view. The movement restricting portion 40 extends from the longitudinal side 15 and the lateral outer end to the longitudinal outer end of the lateral side 17 and may reach both sides of the longitudinal side 15 and the lateral side 17 . The movement restricting portion 40 has a predetermined length in the vertical direction X and a predetermined length in the horizontal direction Y. As shown in FIG. Here, the outer edge in the present invention is an edge located on the outside, and the inner edge is an edge located on the inside. Also, here, the outer end portion in the present invention is a portion that includes the outer edge and occupies a certain range. The four movement restricting portions are a first movement restricting portion 41 located on the lower left side, a second movement restricting portion 42 located on the upper left side, and a third movement restricting portion 42 located on the lower right side in the plan view shown in FIG. It may have a restricting portion 43 and a fourth movement restricting portion 44 positioned on the upper right side. The first movement restricting portion 41 and the second movement restricting portion 42 reach the first packaging joint portion 5A. The first movement restricting portion 41 and the second movement restricting portion 42 are arranged with a space therebetween in the vertical direction X. As shown in FIG. The third movement restricting portion 43 and the fourth movement restricting portion 44 reach the second packaging joint portion 5B. The 3rd movement control part 43 and the 4th movement control part 44 are arrange|positioned at the vertical direction X at intervals. In addition, in a modification, the first movement restricting portion 41 and the second movement restricting portion 42 may be adjacent to each other in the vertical direction X, and the third movement restricting portion 43 and the fourth movement restricting portion 44 may be adjacent to each other in the vertical direction. It may be adjacent to X. The length of each movement regulating portion 40 in the vertical direction X is the longest at the outer edge of the movement regulating portion 40 in the horizontal direction Y (the position reaching the inner edge 5Y2 of the packaging joint portion 5), and is the inner side in the horizontal direction Y. shortening towards A maximum length X41 in the vertical direction X of the first movement restricting portion 41 and a maximum length X42 in the vertical direction X of the second movement restricting portion 42 are shown in FIG. The movement restricting portion 40 extends from the outside in the vertical direction X toward the inside and from the inside in the horizontal direction Y toward the outside.

The first movement restricting part 41 and the third movement restricting part 43 reach the upper lateral side surface 17 shown in FIG. The first movement restricting portion 41 and the third movement restricting portion 43 are arranged in the horizontal direction Y with an interval therebetween. The second movement restricting portion 42 and the fourth movement restricting portion 44 reach the lower lateral side surface 17 shown in FIG. The second movement restricting portion 42 and the fourth movement restricting portion 44 are arranged in the horizontal direction Y with an interval therebetween. In a modified example, the first movement restricting portion 41 and the third movement restricting portion 43 may be adjacent to each other in the lateral direction Y, and the second movement restricting portion 42 and the fourth movement restricting portion 44 may be adjacent to each other in the lateral direction. It may be adjacent to Y. The length of each movement restricting portion 40 in the lateral direction Y is the longest at the outer edge in the longitudinal direction X of the movement restricting portion 40 and decreases toward the inside in the longitudinal direction X. As shown in FIG. FIG. 4 shows the maximum lateral length Y41 of the first movement restricting portion 41 and the maximum lateral Y length Y43 of the third movement restricting portion 43 .

As shown in FIG. 3, each movement restricting portion 40 may be formed overlapping in the thickness direction T. As shown in FIG. Specifically, the first movement restricting portion 41 extends inward in the thickness direction T from the upper surface 11 side and reaches the first packaging joint portion 5A. and a lower first movement restricting portion 412 that extends inwardly and reaches the first packaging joint portion 5A. Similarly, each of the second movement restricting portion 42 to the third movement restricting portion 43 may have a movement restricting portion extending from the upper surface 11 side and a movement restricting portion extending from the lower surface 12 side. The upper first movement restricting portion 411 and the lower first movement restricting portion 412 overlap in the thickness direction T at a position reaching the first packaging joint portion 5A. An outer edge 40T1 in the thickness direction T of the movement restricting portion 40 reaches the upper surface 11 or the lower surface 12. As shown in FIG. An inner edge 40T2 of the movement restricting portion 40 in the thickness direction T reaches the packaging joint portion 5. As shown in FIG. The movement restricting portion 40 extends from the outside to the inside in the thickness direction T and from the inside to the outside in the lateral direction Y. As shown in FIG.

The total length X40 in the vertical direction X of the movement restricting portion 40 in the packaging joint portion 5 is 40% or more of the total length X5 in the vertical direction X of the packaging joint portion 5. It is the total length of the movement restricting portion 40 at the arrival position where the packaging joint portion 5 is reached. More specifically, the total length (X41+X42) of the length X41 in the vertical direction of the first movement restricting portion 41 at the arrival position and the length X42 in the vertical direction X of the second movement restricting portion 42 at the arrival position is 40% or more of the total length X5A in the longitudinal direction X of the first packaging joint portion 5A. The total length (X43+X44) of the length X43 in the vertical direction X of the third movement restricting portion 43 at the arrival position and the length X44 in the vertical direction X of the fourth movement restricting portion 44 at the arrival position is the second It is 40% or more of the total length X5B in the vertical direction X of the packaging joint portion 5B. Note that the seat structure 1 only needs to satisfy at least one of (X41+X42)≧(X5A×0.4) and (X43+X44)≧(X5B×0.4). may be satisfied. Movement restricting portions 40 extending into the packaging space 3 are provided at four corners where the vertical side surface 15 and the horizontal side surface 17 intersect. The sheet stack 50 housed in the packaging space 3 can be moved toward the center of the plane and movement can be restricted by the movement restricting portions 40 at the four corners in the plane direction of the package 2 . As a result of intensive research conducted by the present applicant, it was found that by satisfying X40≧(X5×0.4), displacement of the sheet stack 50 within the package 2 can be effectively suppressed. In particular, in the so-called large-capacity sheet structure 1 in which the thickness of the packaging space 3 is 50 mm or more, the movement of the sheet stack 50 in the plane direction is restricted by the movement restricting part 40, so that the appropriate The sheets 51 can be taken out immediately, and the sheets 51 can be taken out one by one even when the remaining number of sheets is small.

The movement restricting part 40 may extend into the packaging space 3 from each of the upper surface 11 and the lower surface 12 and reach the packaging joint part 5 . According to this configuration, the movement of the sheet stack 50 in the thickness direction T can also be regulated by the movement regulating portion 40 . In particular, since the movement restricting portion 40 extends from the lower surface 12 side, it is possible to continue restricting the movement of the stack of sheets 50 even when the remaining number of sheets is small, so that the user can properly handle the stack until the last sheet. You can take them out one by one. Moreover, the packaging joint portion is a portion where the packaging sheets 4 are joined to each other, and has relatively high rigidity. Since the movement restricting portion 40 reaches the portion with high rigidity, the position of the movement restricting portion 40 is less likely to shift, and the effect of suppressing the positional deviation of the seat structure by the movement restricting portion 40 is likely to be exhibited.

As shown in FIG. 4, the inner edge 40X2 of the movement restricting portion 40 in the longitudinal direction X may be located inside the longitudinal direction X of the outer edge 7X1 of the packaging opening 7 in the longitudinal direction X. As shown in FIG. According to this configuration, since the packaging opening 7 is located in the range G40X sandwiched in the vertical direction X by the movement restricting portion 40, the center of the sheet stack 50 in the vertical direction X can be aligned so as to overlap the packaging opening 7. . In addition, the interval G40X between the movement restricting portions 40 in the vertical direction X may be shorter than the length X7 of the packaging opening 7 in the vertical direction X. According to this configuration, the packaging openings 7 can be overlapped and arranged over the entire range in the vertical direction X in which movement in the vertical direction X is restricted by the movement restricting portion 40 . Therefore, it becomes easier to take out the sheet 51 through the packaging opening 7 . In addition, as in the present embodiment, when each sheet 51 is folded with the folding line FL along the horizontal direction Y as the starting point, the fold line is located on the upper surface 11 side of each sheet 51 and extends in the horizontal direction Y. The packaging opening 7 is preferably arranged so as to overlap the edge 51Y (see FIG. 1). Therefore, the outer edge 7X1 of the packaging opening 7 in the longitudinal direction X may be located outside the edge 51Y of the sheet 51 in the longitudinal direction X.

The lateral Y inner edge 40Y2 of the movement restricting portion 40 may be located inside the lateral Y Y outer edge 50Y1 of the sheet stack 50 in the lateral direction. In addition, the longitudinal direction X inner edge 40X2 of the movement restricting portion 40 may be positioned inside the longitudinal direction X of the longitudinal direction X outer edge 50X1 of the sheet stack 50 . In addition, the inner edge 40T2 in the thickness direction T of the movement restricting portion 40 may be located inside the outer edge 50T1 in the thickness direction T of the sheet stack 50 in the thickness direction T. As shown in FIG. According to this configuration, the movement of the stacked sheet body 50 can be restricted by the movement restricting portion 40 in any of the thickness direction T, the horizontal direction Y, and the vertical direction X, and the sheet stacked body 50 can be positioned. .

As shown in FIG. 2, if the length of the packaging space 3 in the horizontal direction Y is Y3, the length of the sheet stack 50 in the horizontal direction Y is Y50, and the length of the packaging opening 7 in the horizontal direction Y is Y7. , Y3−Y50<Y7. According to this configuration, the packaging opening 7 is arranged so as to overlap the sheet stack 50 even if the sheet stack 50 is displaced in the lateral direction Y within the package 2 . Therefore, the sheet 51 can continue to be taken out through the packaging opening 7 . When the number of sheets 51 in the sheet stack 50 decreases, the length Y3 of the packaging space 3 in the horizontal direction Y increases, and Y3-Y50<Y7 may not be satisfied. However, even if Y3-Y50<Y7 is not satisfied in a mode in which the number of sheets 51 is small, it is sufficient if Y3-Y50<Y7 is satisfied in a state in which all the sheets 51 are stacked (state before use). .

As shown in FIG. 3, the inner edge 5Y2 of the packaging joint portion 5 in the lateral direction Y may be positioned closer to the lower surface 12 than the center 3T3 in the thickness direction T of the packaging space 3. The movement restricting portion 40 reaches the packaging joint portion 5 . Since the packaging joint portion 5 is positioned closer to the lower surface 12 than the center 3T3 in the thickness direction T of the packaging space 3, that is, the packaging joint portion 5 is biased toward the lower surface 12 side in the thickness direction T, the remaining number of sheets is reduced. The sheet can be positioned by the movement restricting portion 40 . Therefore, especially in a state where the position of the sheet 51 tends to move and the remaining number of sheets is small, the sheet 51 can be arranged at an appropriate position and the sheets 51 can be continuously taken out one by one.

At least one of the length Y7 of the packaging opening 7 in the horizontal direction Y and the length X7 of the packaging opening 7 in the vertical direction may be longer than the length T3 of the packaging space 3 in the thickness direction T. That is, the seat structure 1 may satisfy at least one of Y7>T3 and X7>T3. According to this configuration, either the length Y7 of the packaging opening 7 in the horizontal direction Y or the length X7 of the packaging opening 7 in the vertical direction X is longer than the length T3 of the packaging space 3 in the thickness direction T. , the finger can easily reach the lower surface of the packaging space 3, and the sheets 51 can be easily taken out one by one through the packaging opening 7 up to the last sheet 51.例文帳に追加Moreover, the packaging opening 7 may have a vertically long shape. According to this configuration, even when the sheet stack 50 is displaced in the vertical direction X, it is easy to continue to take out the sheet 51 through the packaging opening 7 . In a variant, the packaging opening 7 may be oblong in shape. According to this configuration, even when the sheet stack 50 is shifted in the lateral direction Y, it is easy to continue to take out the sheet 51 through the packaging opening 7 .

As shown in FIG. 2, the gap (D1+D2) between the sheet stack 50 and the inner surface of the package 2 in the lateral direction may be 10 mm or more, preferably 20 mm or more. The inner surface of the package 2 is the outer edge of the packaging space 3, D1 is the distance in the lateral direction Y between the first packaging joint 5A and the sheet stack 50, and D2 is the distance between the second packaging joint 5B and the sheet stack. It may be the lateral Y spacing of the body 50 . According to this configuration, the position of the sheet stack 50 in the lateral direction Y within the package 2 can be shifted. For example, when the sheet 51 is used continuously, the length of the package 2 in the horizontal direction Y can be shortened to make it compact. By making the packaging body 2 compact, it becomes easy to grasp the remaining number of sheets 51 from the outside of the packaging body 2.例文帳に追加In addition, by making the packaging body 2 compact, the air in the packaging space 3 can be removed to suppress drying of the sheet 51. - 特許庁

Also, the gap (D1+D2) between the inner surface of the laminated sheet 50 and the package 2 in the lateral direction Y may be smaller than the length T50 of the laminated sheet 50 in the thickness direction T. According to this configuration, the excess portion of the package 2 in the horizontal direction Y is easily arranged along the side surfaces of the sheet stack 50 , and the excess portion is less likely to be arranged on the upper surface side and the lower surface side of the package 2 . If the sheet structure 1 is accommodated in the outer package with the surplus portions arranged on the upper surface 11 side and the lower surface 12 side of the package 2, the surplus portion may unintentionally close the packaging opening 7, or the sheet may be damaged. There is a possibility that the laminated body 50 may be stored in the outer package in a bent state, making it difficult to pull out the sheet 51 smoothly. However, by satisfying (D1+D2)<T50, the sheets 51 are not arranged on the upper surface 11 side and the lower surface 12 side of the sheet stack 50, and the sheets 51 can be easily continuously taken out.

(3) Configuration of Exterior Body Next, the exterior body 60 will be described with reference to FIGS. 6 to 8. FIG. 6 is a perspective view of the exterior body 60 and the seat structure 1, and FIG. 7 is a view of the exterior space 69 of the exterior body 60 viewed from the lower surface 12 side. FIG. 8 is a schematic cross-sectional view of an exterior body 60 according to a modification. The exterior body is attached to the seat structure 1 and used. The exterior body 60 has a vertical direction X and a horizontal direction Y that extend in the planar direction of the sheet 51 and are orthogonal to each other, and a thickness direction T that extends in the stacking direction of the sheets 51 . Each direction of the exterior body 60 matches each direction of the seat structure 1 . The exterior body 60 has an exterior opening 67 that overlaps at least a portion of the packaging opening 7 and serves as an outlet for the sheet 51 .

The exterior body 60 is composed only of a cover portion 61 that covers at least a portion of the upper surface 11 of the seat structure 1 , and the cover portion 61 may be detachably attached to the seat structure 1 . and an enclosing portion 62 that is integrated and surrounds the entire seat structure 1 . The exterior body 60 of this embodiment has a covering portion 61 and an enclosing portion 62 . The covering portion 61 covers the upper surface 11 of the seat structure 1 . The surrounding portion 62 is integrated with the cover portion 61 and covers the side and bottom surfaces of the seat structure 1 . The enclosing portion 62 has a lower surface area 612 covering the lower surface 12 and side areas 615 covering the pair of longitudinal side surfaces 15 and the pair of lateral side surfaces. The lower surface region 612 is configured to be attachable and detachable with respect to the side surface region 615 . With the lower surface area 612 removed from the side surface area 615 , the seat structure 1 can be put in and taken out of the exterior body 60 . The exterior body 60 has an exterior space 69 that accommodates the seat structure 1 . The exterior space 69 is a region surrounded by the surrounding portion (the side surface region 615 and the bottom surface region 612) 62 and the cover portion 61. As shown in FIG. The length Y69 in the lateral direction Y of the exterior space 69 is the lateral distance between the side regions 615 arranged outside the pair of longitudinal side surfaces, and the length X69 in the longitudinal direction X of the exterior space 69 is the length X69 of the pair of longitudinal side surfaces. It is the longitudinal X spacing between side regions 615 located outside of the lateral sides 17 . A length T69 in the thickness direction T of the exterior space 69 is the distance in the thickness direction T between the cover portion 61 and the lower surface region 612 .

In addition, in a form in which the exterior body 60 is configured only by the cover portion 61, the cover portion 61 may be provided with an adhesive portion and attached to the outer surface of the sheet structure 1 via the adhesive portion. The exterior body consisting only of the cover portion 61 includes a lid portion that openably and closably covers the exterior opening 67, a base portion disposed around the exterior opening 67, a hinge portion serving as an opening/closing base point of the lid portion with respect to the base portion, can be exemplified. When the user takes out the sheet 51 , the user performs an operation to open the lid using the hinge as a base point, and closes the lid to cover the exterior opening 67 when the user does not take out the sheet 51 .

The exterior opening 67 may be vertically long or horizontally long. The exterior opening of the present embodiment has a laterally long shape, and has a separation guide portion 68 that bulges inward in the longitudinal direction X at the center in the lateral direction Y of the exterior opening 67 . The separation guide portion 68 is configured to protrude inward from the outer edge of the exterior opening 67, which is the outer edge of the exterior opening 67 in a plan view, and guide the separation of the sheets 51 from each other. The separation guide portion 68 may be a portion that protrudes inward in the longitudinal direction X from the outer edge of the exterior opening 67 in the longitudinal direction X. As shown in FIG. In a modified example, the separation guide portion 68 may be a portion that protrudes inward in the horizontal direction Y from the outer edge of the exterior opening 67 in the horizontal direction Y. As shown in FIG. A user pulls out the sheet 51 through the packaging opening 7 and the exterior opening 67 . At this time, the separation guiding portion 68 hits the sheet 51, and only the sheet to be taken out is pulled out when the sheet to be taken out and the next sheet 51 (located on the lower surface 12 side) are likely to be pulled out together. function as

Assuming that the lateral length of the packaging space 3 of the package 2 is Y3, the lateral Y length of the sheet stack 50 is Y50, and the lateral Y length of the exterior opening 67 is Y67, Y3 - Y50. <Y67 may be satisfied. According to this configuration, even if the sheet stack 50 is displaced in the lateral direction Y within the package 2 , the exterior opening 67 is arranged so as to overlap the sheet stack 50 , and the sheet 51 continues to be taken out through the exterior opening 67 . be able to.

At least one of the length Y67 in the lateral direction Y of the exterior opening 67 and the length X67 in the longitudinal direction X of the exterior opening 67 may be longer than the length T69 of the exterior space 69 in the thickness direction T. According to this configuration, since either the length of the exterior opening 67 in the horizontal direction Y or the length of the packaging opening in the vertical direction is longer than the length of the exterior space in the thickness direction, the lower surface of the exterior space 69 can be reached. is easy to reach, and even the last sheet can be easily taken out through the exterior opening 67.例文帳に追加

The exterior body 60 may have ribs 70 that protrude inward in the exterior space 69 and restrict the movement of the package 2 . FIG. 7 is a bottom view of the exterior body 60 with the bottom area removed. Each rib 70 may be longitudinally X-spaced and laterally Y-spaced apart. The ribs 70 extend inward in the lateral direction Y from both end faces in the lateral direction Y of the exterior space 69 . The lateral Y spacing G70Y between the ribs 70 is shorter than the lateral Y length Y2 of the package 2 and longer than the lateral Y spacing G40Y between the movement restricting portions 40 . According to this configuration, the movement of the package 2 in the lateral direction Y can be restricted by the ribs 70 . In addition, since the interval G40Y in the lateral direction Y of the movement restricting portion 40 is shorter than the interval in the lateral direction Y between the ribs 70, the movement of the package 2 is restricted by the ribs 70, and furthermore, the stack of sheets in the package 2 50 can be restricted by the movement restricting part 40 . That is, the movement of the sheet stack 50 can be restricted step by step, the sheet stack 50 can be positioned, and the bias of the sheet stack 50 can be suppressed.

The ribs 70 may extend inward in the vertical direction from both end faces in the vertical direction X of the exterior space 69 . The longitudinal interval G70X of the ribs 70 is shorter than the longitudinal length X2 of the package 2 and longer than the longitudinal X interval G40X between the movement restricting portions 40 . According to this configuration, the movement of the package 2 in the vertical direction X can be restricted by the ribs 70 . In addition, since the interval G40X in the longitudinal direction X between the movement restricting portions 40 is shorter than the interval G70X in the longitudinal direction X between the ribs 70, the ribs 70 restrict the movement of the package 2 in the longitudinal direction X, 2 can be regulated by the movement regulating portion 40 . That is, the movement of the sheet stack 50 can be restricted step by step, the sheet stack 50 can be positioned, and the bias of the sheet stack 50 can be suppressed.

FIG. 8 is a schematic cross-sectional view of an exterior body 60P according to a modification. The cross section shown in FIG. 8 is a cross section along a plane extending in the thickness direction T and the lateral direction Y. As shown in FIG. The exterior body 60P according to the modification is configured such that the side area 615 can be separated in the vertical direction. The upper side area 6151 is integrated with the cover portion 61 and the lower side area 6152 is integrated with the lower surface area 612 . The cover portion 61 and the upper side surface region 6151 are configured to be openable and closable with respect to the lower side surface region 6152 via a hinge or the like, and in the open state, the seat structure 1 is configured to be taken in and out. there is The exterior body 60P according to the modification is provided with ribs 70P that restrict the movement of the seat structure 1 in the thickness direction T. As shown in FIG. The rib 70P of the exterior body 60P shown in FIG. 8 extends inward in the thickness direction T from the lower surface region 612. As shown in FIG. The ribs 70P may extend inward in the thickness direction T from at least one of both end faces in the thickness direction T of the exterior space 69, and may extend inward in the thickness direction T from the inner surface of the cover portion 61. good. In the mode in which the ribs 70P are arranged on both sides with a gap in the vertical direction, the interval in the thickness direction T between the ribs 70P is shorter than the length T2 in the thickness direction T of the package 2, and the sheet stack 50 may be longer than the interval G40T in the thickness direction T between the movement restricting portions 40 at the outer edge in the lateral direction Y of the . In addition, in the form in which the ribs 70 are provided only on the upper side or the lower side, the gap G70T between the inner edge in the thickness direction T of the ribs 70 and the upper end or lower end of the exterior space 69 facing the ribs is It may be shorter than the length T2 in the thickness direction T and longer than the interval G40T in the thickness direction T between the movement restricting portions 40 at the lateral outer edges 50Y1 of the sheet stack. G70T is the distance in the thickness direction T between the upper end of the rib 70P and the upper end of the exterior space 69 in the mode in which the rib 70P is provided on the lower side. is the interval in the thickness direction T between the lower end of the rib 70P and the lower end of the exterior space 69. As shown in FIG. Note that the length T2 in the thickness direction T of the package 2 and the interval G40T in the thickness direction T between the movement restricting portions 40 are the lengths in the state before the sheet structure 1 is accommodated in the outer package, not in the state in which the sheet structure 1 is accommodated in the package. is. According to this configuration, by housing the sheet structure 1 in the exterior body, the movement of the package 2 in the thickness direction T can be restricted by the ribs 70P, and further, the movement of the sheet stack 50 inside the package 2 can be moved. It can be regulated by the regulating section 40 . That is, the movement of the sheet stack 50 can be restricted step by step, the sheet stack 50 can be positioned, and the bias of the sheet stack 50 can be suppressed.

Although the present invention has been described in detail using the above-described embodiments, it is clear to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented with modifications and variations without departing from the spirit and scope of the invention defined by the claims. Accordingly, the descriptions herein are for the purpose of illustration and description, and are not intended to have any limiting meaning with respect to the present invention. The movement restricting portion 40 of the above-described embodiment is configured by the folded portion of the packaging sheet 4 . However, in other forms, it may be composed of a sheet other than the packaging sheet 4, or may be composed of a member other than the sheet.

The entire contents of Japanese Patent Application No. 2021-185165 filed on November 12, 2021 are incorporated herein by reference.

According to this aspect, it is possible to provide a sheet structure and an outer package that suppresses the positional deviation of the sheet stack in the multiple package and makes it easy to take out the sheets one by one.

1: sheet structure, 2: package, 3: package space, 4: package sheet, 5: package joint, 7: package opening, 11: upper surface, 12: lower surface, 15: longitudinal side, 17: lateral side, 40, 41, 42, 43, 44: Movement restricting part, 50: Sheet laminate, 51: Sheet, 60, 60P: Exterior body, 61: Cover part, 62: Surrounding part, 67: Exterior opening, 68: Separation guide Part 69: Exterior space 612: Lower surface area 615:

Side area

70, 70P: Rib T: Thickness direction X: Vertical direction Y: Horizontal direction

Claims

The stack of sheets is composed of a longitudinal direction and a lateral direction extending in the planar direction of the sheet and orthogonal to each other, a thickness direction extending in the stacking direction of the sheets, a sheet stack in which a plurality of the sheets are stacked, and a packaging sheet. a package containing a body, and
The packaging body includes a packaging space for packaging the sheet stack, a packaging opening serving as an outlet for the sheets, an upper surface extending in the vertical direction and the horizontal direction and having the packaging opening formed therein, and the upper surface. and a pair of vertical side surfaces extending in the vertical direction and the thickness direction and arranged to face each other, and a pair of vertical side surfaces extending in the horizontal direction and the thickness direction and arranged to face each other A seat structure having lateral sides,
In the natural state of the sheet structure, the length of the packaging space in the thickness direction is 50 mm or more,
Each outer surface of the pair of vertical side surfaces is provided with a packaging joint portion in which the packaging sheets are joined together along the vertical direction,
The package extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side at four corners where the longitudinal side and the lateral side intersect, and is provided in the packaging space. Four movement regulating portions are provided for regulating the movement of the sheet stack,
The movement restricting portion reaches the packaging joint,
The sheet structure according to claim 1, wherein the total longitudinal length of the movement restricting portion at the packaging joint is 40% or more of the total longitudinal length of the packaging joint.
The sheet structure according to claim 1, wherein the movement restricting portion extends into the packaging space from each of the upper surface and the lower surface and reaches the packaging joint portion.
The sheet structure according to claim 1 or 2, wherein the longitudinal inner edge of the movement restricting portion is located inside the longitudinal outer edge of the packaging opening in the longitudinal direction.
the lateral inner edge of the movement restricting portion is located inside the lateral outer edge of the sheet stack in the lateral direction;
the longitudinal inner edge of the movement restricting portion is positioned inside the longitudinal outer edge of the sheet stack in the longitudinal direction;
4. The method according to any one of claims 1 to 3, wherein an inner edge in the thickness direction of the movement restricting portion is positioned inside in the thickness direction of an outer edge in the thickness direction of the sheet stack. Seat structure as described.
Y3 is the lateral length of the packaging space,
The lateral length of the sheet laminate is Y50,
Assuming that the lateral length of the packaging opening is Y7,
5. The seat structure according to claim 1, wherein Y3-Y50<Y7 is satisfied.
The sheet structure according to any one of claims 1 to 5, wherein the lateral inner edge of the packaging joint portion is located closer to the lower surface than the center of the packaging space in the thickness direction. .
7. At least one of the length of the packaging opening in the horizontal direction and the length of the packaging opening in the vertical direction is longer than the length of the packaging space in the thickness direction. The seat structure according to any one of .
It is used by being attached to a sheet structure having a sheet laminate in which a plurality of sheets are laminated and a packaging body in which a packaging opening serving as an outlet for the sheet is formed, overlaps at least a part of the packaging opening, and An exterior body having an exterior opening serving as a sheet outlet,
The exterior body has a vertical direction and a horizontal direction that extend in the planar direction of the sheet and are orthogonal to each other, and a thickness direction that extends in the stacking direction of the sheet,
Y3 is the lateral length of the packaging space of the packaging body,
The lateral length of the sheet laminate is Y50,
Assuming that the lateral length of the exterior opening is Y67,
An exterior body that satisfies Y3-Y50<Y67.
The exterior body has an exterior space that accommodates the seat structure,
8. At least one of the horizontal length Y67 of the exterior opening and the vertical length X67 of the exterior opening is longer than the thickness direction length T69 of the exterior space. The exterior body described in .
The exterior body has an exterior space that accommodates the sheet structure, and a rib that protrudes inward in the exterior space and restricts movement of the package,
The package includes an upper surface extending in the longitudinal direction and the lateral direction and having the packaging opening formed thereon, a lower surface facing the upper surface, and an upper surface extending in the longitudinal direction and the thickness direction and arranged to face each other. and a pair of lateral side surfaces extending in the lateral direction and the thickness direction and arranged to face each other,
The rib extends inward in the lateral direction from each of the lateral end surfaces of the exterior space,
The package extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side at four corners where the longitudinal side and the lateral side intersect, and is provided in the packaging space. Four movement regulating portions are provided for regulating the movement of the sheet stack,
The exterior according to claim 8 or 9, wherein the lateral spacing between the ribs is shorter than the lateral length of the package and longer than the lateral spacing between the movement restricting portions. body.
The exterior body has an exterior space that accommodates the sheet structure, and a rib that protrudes inward in the exterior space and restricts movement of the package,
The package includes an upper surface extending in the longitudinal direction and the lateral direction and having the packaging opening formed thereon, a lower surface facing the upper surface, and an upper surface extending in the longitudinal direction and the thickness direction and arranged to face each other. and a pair of lateral side surfaces extending in the lateral direction and the thickness direction and arranged to face each other,
The ribs extend inward in the vertical direction from both vertical end surfaces of the exterior space,
The package extends from the lateral outer end of the longitudinal side to the longitudinal outer end of the lateral side at four corners where the longitudinal side and the lateral side intersect, and is provided in the packaging space. Four movement regulating portions are provided for regulating the movement of the sheet stack,
11. Any one of claims 8 to 10, wherein the longitudinal spacing of the ribs is shorter than the longitudinal length of the package and longer than the longitudinal spacing between the movement restricting portions. The exterior body described in .
The exterior body has an exterior space that accommodates the sheet structure, and a rib that protrudes inward in the exterior space and restricts movement of the package,
The package includes an upper surface extending in the longitudinal direction and the lateral direction and having the packaging opening formed thereon, a lower surface facing the upper surface, and an upper surface extending in the longitudinal direction and the thickness direction and arranged to face each other. and a pair of lateral side surfaces extending in the lateral direction and the thickness direction and arranged to face each other,
The rib extends inward in the thickness direction from at least one of both end faces in the thickness direction of the exterior space,
The package body is provided with a movement restricting portion that extends inward in the thickness direction from the top surface and the bottom surface and restricts movement of the sheet stack in the packaging space,
The distance between the ribs in the thickness direction or the distance between the inner edge of the rib in the thickness direction and the upper end or the lower end of the exterior space facing the rib is shorter than the length of the package in the thickness direction, The exterior body according to any one of claims 8 to 11, wherein the outer body according to any one of claims 8 to 11 is longer than the distance in the thickness direction between the movement restricting portions at the lateral outer edges of the sheet stack.