Exterior

Abstract

A sheet structure and an exterior body are provided that prevent misalignment of a sheet stack within a package and allow sheets to be easily removed one by one. [Solution] The packaging body has a packaging space 3 for packaging a sheet stack 50 and a packaging opening through which the sheets can be removed. When the sheet structure is in its natural state, the thickness direction of the packaging space is 50 mm or more. A packaging joint 5, which joins the packaging sheets together, is provided along the vertical direction on the outer surface of each of a pair of vertical sides. The packaging body is provided with four movement restriction portions 40 at the four corners where the vertical side and horizontal side intersect, extending from the horizontal outer end of the vertical side to the vertical outer end of the horizontal side, and restricting movement of the sheet stack within the packaging space. The movement restriction portions also reach the packaging joint 5. The total vertical length X41 + X42 of the movement restriction portions 40 at the packaging joint is 40% or more of the overall vertical length X5 of the front mounting joint.

Description

Technical Field

[0001] The present invention relates to a sheet structure and an exterior body that package a sheet laminate in which sheets such as wet tissues are laminated.

Background Art

[0002] There has been provided a sheet structure having a sheet laminate laminated in the thickness direction and a package that packages the sheet laminate (see, for example, Patent Document 1). A packaging opening serving as an outlet for the sheet is formed in the package. The user takes out the sheet through the packaging opening. The sheet structure is used in the state of the sheet structure or used in a state of being housed in an exterior body (for example, Patent Document 2). An exterior opening serving as an outlet for the sheet is formed in the exterior body. When using the sheet structure while housed in the exterior body, the sheet is taken out through the packaging opening and the exterior opening.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, the packaging space of the packaging is larger than the volume of the sheet laminate. Therefore, when used in sheet form, the sheet laminate may shift position within the packaging. When this shift occurs, it becomes difficult to guide each sheet to the packaging opening, sometimes resulting in sheets being unintentionally folded or multiple sheets being removed at once, making it difficult to remove sheets one by one. Also, when used with the sheet structure housed in an outer packaging, if the packaging opening is misaligned with the sheet laminate, and the sheet structure is housed in the outer packaging based on the outer shape of the sheet laminate, the positions of the packaging opening and the outer packaging opening will be misaligned, making it difficult to remove sheets through the outer packaging opening. In particular, in all usage modes, when the sheet laminate is thick, such as when there are many sheets in the sheet laminate, as the number of remaining sheets decreases, the difference between the volume of the packaging space and the volume of the sheet laminate increases, making the shift of the sheet laminate within the packaging more pronounced.

[0005] The present invention has been made in view of the above-mentioned problems, and aims to provide a sheet structure and outer packaging that suppress misalignment of sheet laminates within the packaging and make it easy to remove sheets one by one. [Means for solving the problem]

[0006] A sheet structure according to one aspect has a longitudinal direction (X) and a lateral 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, a sheet stack (50) in which a plurality of the sheets are stacked, and a package (2) constituted by a packaging sheet and packaging the sheet stack. The package has a packaging space for packaging the sheet stack, a packaging opening (7) serving as an outlet for the sheet, an upper surface (11) that extends in the longitudinal direction and the lateral direction and in which the packaging opening is formed, a lower surface (12) facing the upper surface, a pair of longitudinal side surfaces (15) that extend in the longitudinal direction and the thickness direction and are disposed opposite to each other, and a pair of lateral side surfaces (17) that extend in the lateral direction and the thickness direction and are disposed opposite to 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 each outer surface of the pair of longitudinal side surfaces (15), a packaging joint (5) joining the packaging sheets is provided along the longitudinal direction. In the package, at four corners where the longitudinal side surfaces and the lateral side surfaces intersect, four movement restricting portions (40) are provided that extend from the outer end portion in the lateral direction of the longitudinal side surface to the outer end portion in the longitudinal direction of the lateral side surface and restrict the movement of the sheet stack within the packaging space. The movement restricting portion reaches the packaging joint (5). The total length (X41 + X42) in the longitudinal direction of the movement restricting portion (40) at the packaging joint is 40% or more of the total length (X5) in the longitudinal direction of the packaging joint.

[0007] An exterior body according to one aspect is attached to and used for a sheet structure (1) having a sheet stack (50) in which a plurality of sheets are stacked and a package (2) in which a packaging opening (7) serving as an outlet for the sheet is formed, and has an exterior opening (67) that overlaps at least a part of the packaging opening and serves as an outlet for the sheet. The exterior body has a longitudinal direction and a lateral direction that extend in the plane direction of the sheet and are orthogonal to each other, and a thickness direction that extends in the stacking direction of the sheet. When the length in the lateral direction of the packaging space (3) is (Y3), the length in the lateral direction of the sheet stack is (Y50), and the length in the lateral direction of the exterior opening is (Y67), Y3 - Y50 < Y67 is satisfied. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is a perspective view of a sheet structure according to an embodiment. [Figure 2] Figure 2 is a cross-sectional view of the sheet structure along line AA shown in Figure 1. [Figure 3] Figure 3 is a cross-sectional view of the sheet structure along the BB line shown in Figure 1. [Figure 4] Figure 4 is a plan view of the sheet structure. [Figure 5] Figure 5 is a schematic diagram illustrating an example of the manufacturing process for a sheet structure. [Figure 6] Figure 6 is a perspective view of the exterior body and the sheet structure. [Figure 7] Figure 7 is a view of the exterior space of the exterior body 60 from the bottom side. [Figure 8] Figure 8 is a schematic cross-sectional view of the exterior body according to a modified example. [Modes for carrying out the invention]

[0009] (1) Outline of the Embodiment The following matters become clear from this specification and the accompanying drawings: A sheet structure according to one embodiment includes a sheet with a length (X) and a width (Y) extending in the planar direction and mutually orthogonal to each other, a thickness direction (T) extending in the stacking direction of the sheet, a sheet laminate (50) formed by stacking multiple sheets, and a packaging body (2) made of a packaging sheet that packages the sheet laminate. The packaging body includes a packaging space for packaging the sheet laminate, a packaging opening (7) which serves as an outlet for the sheets, an upper surface (11) extending in the vertical and width directions and on which the packaging opening is formed, a lower surface (12) facing the upper surface, a pair of vertical sides (15) extending in the vertical and width directions and arranged facing each other, and a pair of horizontal sides (17) extending in the width and width directions and arranged facing each other. In the natural state of the sheet structure, the length (T3) of the packaging space in the width direction is 50 mm or more. Each of the pair of vertical sides (15) has a packaging joint (5) along the vertical direction on its outer surface, which joins the packaging sheets together. The packaging body is provided with four movement restricting portions (40) at the four corners where the vertical sides and horizontal sides intersect, extending from the horizontal outer end of the vertical side to the vertical outer end of the horizontal side, and restricting the movement of the sheet stack within the packaging space. The movement restricting portions also reach the packaging joint (5). The total length (X41 + X42) of the movement restricting portions (40) in the vertical direction at the packaging joint is 40% or more of the total length (X5) of the packaging joint in the vertical direction. The movement restricting portions provided at the four corners in the planar direction of the packaging body can move the sheet stack contained in the packaging space towards the center in the planar direction and restrict its movement. Therefore, displacement of the sheet stack within the packaging body can be suppressed. In particular, in so-called large-capacity sheet structures where the thickness of the packaging space is 50 mm or more, the movement of the sheet stack in the planar direction is restricted by the movement restricting part, allowing for proper removal through the packaging opening, and enabling the continued removal of sheets one by one even when the number of remaining sheets is small.

[0010] According to a preferred embodiment, 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 part. According to this embodiment, with this configuration, the movement of the sheet laminate in the thickness direction can also be restricted by the movement restricting part. In particular, since the movement restricting part extends from the lower surface side, even when the remaining number of sheets decreases, the movement of the sheet laminate can continue to be restricted, and the user can appropriately take out the last sheet one by one.

[0011] According to a preferred embodiment, the inner edge (40X2) of the movement restricting part in the vertical direction is located inside the outer edge (7X1) of the packaging opening in the vertical direction in the vertical direction. According to this embodiment, since there is a packaging opening in the range (G40X) sandwiched in the vertical direction by the movement restricting part, the center of the sheet laminate in the vertical direction can be aligned so as to overlap the packaging opening (7).

[0012] According to a preferred embodiment, the inner edge (40Y2) of the movement restricting part in the lateral direction is located inside the outer edge (50Y1) of the sheet laminate in the lateral direction (Y) in the lateral direction. The inner edge (40X2) of the movement restricting part in the vertical direction is located inside the outer edge (50X1) of the sheet laminate in the vertical direction in the vertical direction. The inner edge (40T2) of the movement restricting part in the thickness direction is located inside the outer edge (50T1) of the sheet laminate in the thickness direction in the thickness direction. According to this embodiment, the movement of the sheet laminate can be restricted in any of the thickness direction, lateral direction, and vertical direction by the movement restricting part, and the positioning of the sheet laminate can be performed.

[0013] According to a preferred embodiment, when 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 is satisfied. According to this embodiment, even if the lateral position of the sheet laminate shifts within the package, the packaging opening is arranged to overlap the sheet laminate. Therefore, the sheet can continue to be taken out through the packaging opening.

[0014] According to a preferred embodiment, the horizontal inner edge (5Y2) of the packaging joint (5) is located closer to the lower surface (12) than the center (3T3) of the packaging space in the thickness direction. According to this embodiment, the movement restricting portion has reached the packaging joint. Since the packaging joint is located closer to the lower surface than the center of the packaging space in the thickness direction, that is, the packaging joint is biased toward the lower surface in the thickness direction, the remaining sheets with a reduced number can be positioned by the movement restricting portion. Therefore, particularly in a state where the remaining number of sheets is small and the position of the sheet is likely to move, the sheet can be arranged at an appropriate position and the sheets can be continuously taken out one by one.

[0015] According to a preferred embodiment, at least one of the horizontal length (Y7) and the vertical length (X7) of the packaging opening is longer than the length (T3) of the packaging space in the thickness direction. According to this embodiment, since either the horizontal length or the vertical length of the packaging opening is longer than the length of the packaging space in the thickness direction, it is easy for a finger to reach the lower surface of the packaging space, and it is easy to take out the sheets one by one through the packaging opening until the last sheet.

[0016] An exterior body according to an embodiment is attached to and used with a sheet structure (1) having a sheet laminate (50) in which a plurality of sheets are laminated and a packaging body (2) in which a packaging opening (7) serving as an outlet for the sheets is formed, and has an exterior opening (67) that overlaps at least a part of the packaging opening and serves as an outlet for the sheets. The exterior body has a vertical direction and a horizontal direction that extend in the plane direction of the sheet and are orthogonal to each other, and a thickness direction that extends in the stacking direction of the sheets. When the horizontal length of the packaging space (3) is (Y3), the horizontal length of the sheet laminate is (Y50), and the horizontal length of the exterior opening is (Y67), Y3 - Y50 < Y67 is satisfied. According to this embodiment, even if the horizontal position of the sheet laminate is displaced within the packaging body, the exterior opening is arranged to overlap the sheet laminate, and the sheets can be continuously taken out through the exterior opening.

[0017] In one preferred embodiment, the outer casing has an outer space (69) for housing the sheet structure. At least one of the lateral length (Y67) and the vertical length (X67) of the outer opening is longer than the thickness length (T69) of the outer space. In this embodiment, since either the lateral length of the outer opening or the vertical length of the packaging opening is longer than the thickness length of the outer space, it is easy to reach the bottom surface of the outer space with a finger, and it is easy to remove the last sheet through the outer opening.

[0018] In one preferred embodiment, the outer packaging comprises an outer space for housing the sheet structure, and ribs (70) protruding inward within the outer space and restricting the movement of the packaging. The packaging comprises a packaging space for packaging the sheet laminate, an upper surface extending in the vertical and horizontal directions and having a packaging opening formed thereon, a lower surface facing the upper surface, a pair of vertical sides extending in the vertical and thickness directions and facing each other, and a pair of horizontal sides extending in the horizontal and thickness directions and facing each other. The ribs (70) extend inward in the horizontal direction from each of the horizontal end faces of the outer space. The packaging is provided with four movement restricting portions (40) at the four corners where the vertical and horizontal sides intersect, extending from the horizontal outer end of the vertical side to the vertical outer end of the horizontal side, and restricting the movement of the sheet laminate within the packaging space. The lateral distance between the ribs (G70Y) is shorter than the lateral length of the packaging body (Y2) and longer than the lateral distance between the movement restricting parts (G40Y). In this embodiment, since the distance between the movement restricting parts is shorter than the lateral distance between the ribs, the movement of the packaging body can be restricted by the ribs, and furthermore, the movement of the sheet stack within the packaging body can be restricted by the movement restricting parts. That is, the movement of the sheet stack can be restricted in stages, the positioning of the sheet stack can be controlled, and the bias of the sheet stack can be suppressed.

[0019] According to a preferred embodiment, the exterior body has an exterior space for accommodating the sheet structure, and ribs that protrude inward within the exterior space and restrict the movement of the package. The package has a packaging space for packaging the sheet laminate, an upper surface that extends in the longitudinal direction and the lateral direction and in which the packaging opening is formed, a lower surface that faces the upper surface, a pair of longitudinal side surfaces that extend in the longitudinal direction and the thickness direction and are arranged opposite to each other, and a pair of lateral side surfaces that extend in the lateral direction and the thickness direction and are arranged opposite to each other. The ribs extend inward in the longitudinal direction from both end surfaces in the longitudinal direction of the exterior space. At the four corners where the longitudinal side surfaces and the lateral side surfaces of the package intersect, four movement restricting portions are provided that extend from the outer end portion in the lateral direction of the longitudinal side surface to the outer end portion in the longitudinal direction of the lateral side surface and restrict the movement of the sheet laminate within the packaging space. The longitudinal interval (G70X) of the ribs is shorter than the longitudinal length (X2) of the package and longer than the longitudinal interval (G40X) between the movement restricting portions (40). According to this embodiment, since the interval between the movement restricting portions is shorter than the longitudinal interval between the ribs, the movement of the package is restricted by the ribs, and furthermore, the movement of the sheet laminate within the package can be restricted by the movement restricting portions. That is, the movement of the sheet laminate can be restricted step by step, the positioning of the sheet laminate can be performed, and the deviation of the sheet laminate can be suppressed.

[0020] In one preferred embodiment, the outer casing comprises an outer casing space for housing the sheet structure and ribs protruding inward within the outer casing space to restrict the movement of the packaging. The packaging comprises a packaging space for packaging the sheet laminate, an upper surface extending in the longitudinal and transverse directions and having a packaging opening formed thereon, a lower surface facing the upper surface, a pair of longitudinal sides extending in the longitudinal and thickness directions and facing each other, and a pair of transverse sides extending in the transverse and thickness directions and facing each other. The ribs extend inward in the thickness direction from at least one of the end faces of the outer casing space in the thickness direction. The packaging is provided with movement restricting portions extending inward in the thickness direction from the upper and lower surfaces to restrict the movement of the sheet laminate within the packaging space. The distance in the thickness direction between the ribs, or the distance (G70T) between the inner edge of the rib in the thickness direction and the upper or lower end of the outer space facing the rib, is shorter than the length (T2) in the thickness direction of the packaging body and longer than the distance (G40T) in the thickness direction between the movement restricting portions (40) at the lateral outer edge of the sheet laminate. According to this embodiment, since the distance between the movement restricting portions is shorter than the distance in the thickness direction between the ribs, the movement of the packaging body can be restricted by the ribs, and furthermore, the movement of the sheet laminate within the packaging body can be restricted by the movement restricting portions. That is, the movement of the sheet laminate can be restricted in stages, the positioning of the sheet laminate can be performed, and the bias of the sheet laminate can be suppressed.

[0021] (2) Overall outline of the sheet structure The sheet structure 1 and exterior body 60 according to the embodiment will be described below with reference to the drawings. In the following drawings, identical or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and the ratios of dimensions, etc., may differ from those of reality. Therefore, specific dimensions, etc., should be determined by referring to the following explanation. In addition, there may be parts where the relationships and ratios of dimensions differ between drawings.

[0022] Figure 1 is a perspective view of the sheet structure 1. Figure 2 is a cross-sectional view of the sheet structure 1 along line AA shown in Figure 1, and Figure 3 is a cross-sectional view of the sheet structure 1 along line BB shown in Figure 1. Figure 4 is a plan view of the sheet structure 1. The sheet structure 1 has longitudinal directions X and transverse directions Y that extend in the planar direction of the sheet 51 and are mutually orthogonal, and a thickness direction T that extends in the stacking direction of the sheet 51. The sheet structure 1 includes a sheet laminate 50 in which a plurality of sheets 51 are stacked, and a packaging body 2 in which the sheet laminate 50 is packaged.

[0023] The packaging body 2 is composed of a packaging sheet 4. The packaging body 2 only needs to have at least a packaging sheet 4, but may also have materials other than the packaging sheet 4 (for example, a seal described later). The packaging sheet 4 may be composed of a film. The material of the film is not particularly limited, but for example, it may be a mixture of polypropylene and polyethylene. The packaging body 2 has a packaging space 3 for packaging the sheet laminate 50 and a packaging opening 7 which serves as an outlet for the sheet 51. The packaging opening 7 may be located on the top surface 11. That is, the surface on which the packaging opening 7 is formed may constitute the top surface 11. The packaging opening 7 may be covered with a peelable seal (not shown) before being covered by the cover portion 61 of the outer packaging body 60 described later. When the user attaches the cover portion 61 to the packaging body 2, the user may peel off the seal, expose the packaging opening 7, and cover the packaging opening 7 with the cover portion 61. The sheet structure 1 may be used together with the outer packaging body 60, or it may be used in the state of the sheet structure 1 by opening and closing the packaging opening 7 via the seal.

[0024] 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 is not limited to an ellipse, a horizontally elongated (vertically elongated) circle, or a perfect circle in plan view. Preferably, it should be curved and not have sharp corners in order to prevent the sheets 51 from getting caught. In this embodiment, the packaging opening 7 is vertically elongated, with a length in the vertical direction X being longer than a length in the horizontal direction Y. The packaging opening 7 may be located in the center of the packaging body 2 in the vertical direction X and the center in the horizontal direction Y.

[0025] The packaging body 2 has an upper surface 11, a lower surface 12, a pair of vertical sides 15, and a pair of horizontal sides 17. The upper surface 11 and the lower surface 12 extend in the vertical direction X and the horizontal direction Y, and are surfaces aligned with 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 positioned on either side of the packaging space 3 in the thickness direction T. The vertical sides 15 are surfaces that extend in the vertical direction X and the thickness direction T. The pair of vertical sides 15 are positioned on either side of the packaging space 3 in the horizontal direction Y. The horizontal sides 17 are surfaces that extend in the horizontal direction Y and the thickness direction T. The pair of horizontal sides 17 are positioned on either side of the packaging space 3 in the vertical direction X. The packaging space 3 is sandwiched between the inner surfaces of the vertical sides 15 in the horizontal direction Y, between the inner surfaces of the horizontal sides 17 in the vertical direction X, and between the inner surfaces of the upper surface 11 and the lower surface 12 in the thickness direction T. The packaging may be approximately a rectangular parallelepiped. Each face may be rectangular. Furthermore, the faces may not intersect perpendicularly at their boundaries, but rather in a curved manner.

[0026] The sheets 51 of the sheet laminate 50 may be dry sheets or wet sheets (e.g., wet wipes). The sheet laminate 50 is folded at least along a fold line FL that runs in the transverse direction Y. In the folded state, adjacent sheets 51 are arranged alternately in the thickness direction T.

[0027] 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. Also, the number of sheets 51 in the sheet laminate 50 before use may be 70 or more, preferably 80 or more. In other words, the sheet structure 1 of this embodiment is a so-called large-capacity sheet structure. In configurations where the thickness of the sheet laminate 50 and the thickness of the packaging space 3 are thick, such as when the number of remaining sheets 51 is large, as the number of remaining sheets 51 decreases, the difference between the volume of the packaging space 3 and the volume of the sheet laminate 50 becomes large, and the displacement of the sheet laminate 50 within the packaging becomes more pronounced. This embodiment is configured to suppress the positional displacement of the sheet laminate 50 in configurations where the length T in the thickness direction of the packaging space 3 is long. The configuration for suppressing misalignment of the sheet laminate 50 will be explained in detail later.

[0028] Here, the natural state of the sheet structure 1 is defined as the sheet structure 1 being placed on a flat board, and the packaging joints 5 on both sides being grasped by hand until the wrinkles on the top surface 11 and bottom surface 12 of the packaging body 2 disappear, and the packaging joints 5 being pulled outward in the lateral direction Y. Then, with the hands released, the sheet structure is left at a temperature of 25°C for 30 minutes. In the following description, unless otherwise specified, the positional relationships, lengths, and spacing of each component are those of the natural state and before use of the sheet structure (when all sheets are stacked).

[0029] On the outer surface of each of the pair of vertical sides 15, a packaging joint 5 is provided along the vertical direction X, where the packaging sheets 4 are joined together. The length of the packaging joint 5 in the vertical direction X may coincide with the length of the vertical side 15 in the vertical direction X, and may coincide with the length of the upper surface 11 and the lower surface 12 in the vertical direction X. The packaging joint 5 extends from the edge in the horizontal direction Y of the packaging body 2 toward the inside in the horizontal direction Y, and has a predetermined length in the horizontal direction Y. The packaging joint 5 may be a portion where the packaging sheets 4 are joined together by welding means such as heat welding or ultrasonic welding, or it may be a portion joined via adhesive. The packaging joint 5 is provided in pairs with a gap in the horizontal direction Y, and has a first packaging joint 5A located on the left side and a second packaging joint 5B located on the right side in the plan view shown in Figure 4. The first packaging joint 5A and the second packaging joint 5B sandwich the packaging space 3 in the horizontal direction Y. The inner edge 5Y2 of each packaging joint 5 in the lateral direction Y constitutes the outer edge 3Y1 of the packaging space 3 in the lateral direction Y. In other words, the length Y3 of the packaging space 3 in the lateral direction Y is the distance between the inner edges 5Y2 of the packaging joint 5 in the lateral direction Y.

[0030] Figure 5 is a schematic diagram showing an example of the manufacturing process of the sheet structure 1. The manufacturing of the sheet structure 1 may include at least steps 1 to 4. Step 1 (S1) involves conveying the cylindrical packaging sheet 4 in the conveying direction MD. Step 2 (S2) is performed after step 1, by placing the sheet laminate 50 in the hollow part of the cylindrical packaging sheet 4. Step 3 (S3) is performed after step 2, by pressing a pressing member against the side of the packaging sheet 4 that is aligned with the conveying direction MD (the side extending from the lateral side in the conveying direction MD) toward the inside of the intersecting direction CD perpendicular to the conveying direction MD, thereby folding the packaging sheet 4 toward the inside of the intersecting direction CD. Step 4 (S4) is performed after step 3, by joining the folded packaging sheets 4 together to form a packaging joint 5. The packaging joint 5 is formed over the entire area of ​​the packaging body 2 in the intersecting direction (longitudinal direction). The packaging joint 5 has a two-layer portion (see Figure 2) where two packaging sheets 4, one on the upper surface 11 side and the other on the lower surface 12 side, are joined together, and a four-layer portion (see Figure 3) where a folded packaging sheet 4 is sandwiched between the two packaging sheets 4, and four layers of packaging sheets 4 are joined together. In the four-layer portion, the folded packaging sheet 4 extends inward in the vertical direction X and inward in the horizontal direction Y between the two packaging sheets 4. The folded packaging sheet 4 extends into the packaging space 3 and constitutes the movement restricting portion 40 of the present invention.

[0031] Next, a configuration for suppressing misalignment of the sheet laminate 50 in the sheet structure 1 configured in this way will be described in detail. The packaging body 2 of the sheet structure 1 is equipped with a movement restricting section 40, which restricts the movement of the sheet laminate 50 within the packaging space 3. In a plan view, the movement restricting sections 40 are provided at each of the four corners where the vertical side surface 15 and the horizontal side surface 17 intersect. The movement restricting sections 40 extend from the outer end in the horizontal direction of the vertical side surface 15 to the outer end in the vertical direction of the horizontal side surface 17, and may reach both sides of the vertical side surface 15 and the horizontal side surface 17. The movement restricting section 40 has a predetermined length in the vertical direction X and a predetermined length in the horizontal direction Y. Here, the outer edge in this invention is the edge located on the outside, and the inner edge is the edge located on the inside. Also, here, the outer end in this invention includes the outer edge and occupies a certain range. The four movement restricting sections may include a first movement restricting section 41 located on the lower left side, a second movement restricting section 42 located on the upper left side, a third movement restricting section 43 located on the lower right side, and a fourth movement restricting section 44 located on the upper right side in the plan view shown in Figure 4. The first movement restricting section 41 and the second movement restricting section 42 reach the first packaging joint 5A. The first movement restricting section 41 and the second movement restricting section 42 are spaced apart in the vertical direction X. The third movement restricting section 43 and the fourth movement restricting section 44 reach the second packaging joint 5B. The third movement restricting section 43 and the fourth movement restricting section 44 are spaced apart in the vertical direction X. In the modified example, the first movement restricting section 41 and the second movement restricting section 42 may be adjacent in the vertical direction X, and the third movement restricting section 43 and the fourth movement restricting section 44 may be adjacent in the vertical direction X. The length of each movement restricting section 40 in the vertical direction X is longest at the outer edge of the movement restricting section 40 in the horizontal direction Y (the position where it reaches the inner edge 5Y2 of the packaging joint 5), and becomes shorter toward the inside in the horizontal direction Y. The maximum length X41 of the first movement restricting section 41 in the vertical direction X and the maximum length X42 of the second movement restricting section 42 in the vertical direction X are shown in Figure 4. The movement restricting section 40 extends from the outside to the inside in the vertical direction X and from the inside to the outside in the horizontal direction Y.

[0032] The first movement restricting section 41 and the third movement restricting section 43 reach the upper lateral surface 17 shown in Figure 4. The first movement restricting section 41 and the third movement restricting section 43 are spaced apart in the lateral direction Y. The second movement restricting section 42 and the fourth movement restricting section 44 reach the lower lateral surface 17 shown in Figure 4. The second movement restricting section 42 and the fourth movement restricting section 44 are spaced apart in the lateral direction Y. In the modified example, the first movement restricting section 41 and the third movement restricting section 43 may be adjacent in the lateral direction Y, and the second movement restricting section 42 and the fourth movement restricting section 44 may be adjacent in the lateral direction Y. The length of each movement restricting section 40 in the lateral direction Y is longest at the outer edge in the vertical direction X of the movement restricting section 40 and becomes shorter toward the inside in the vertical direction X. The maximum lateral length Y41 of the first movement restricting section 41 and the maximum lateral length Y43 of the third movement restricting section 43 in the lateral direction Y are shown in Figure 4.

[0033] As shown in Figure 3, each movement restricting portion 40 may be formed overlapping in the thickness direction T. Specifically, the first movement restricting portion 41 may have an upper first movement restricting portion 411 extending inward in the thickness direction T from the upper surface 11 side and reaching the first packaging joint 5A, and a lower first movement restricting portion 412 extending inward in the thickness direction T from the lower surface 12 side and reaching the first packaging joint 5A. Similarly, each of the second movement restricting portions 42 to the third movement restricting portions 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 the position where they reach the first packaging joint 5A. The outer edge 40T1 of the movement restricting portion 40 in the thickness direction T reaches the upper surface 11 or the lower surface 12. The inner edge 40T2 of the movement restricting portion 40 in the thickness direction T reaches the packaging joint 5. 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.

[0034] The total length X40 of the movement restricting sections 40 in the vertical direction at the packaging joint 5 is 40% or more of the total length X5 of the packaging joint 5 in the vertical direction. This is the total length of the movement restricting sections 40 at the destination position where they reach the packaging joint 5. More specifically, the total length (X41 + X42) of the vertical length X41 of the first movement restricting section 41 and the vertical length X42 of the second movement restricting section 42 at the destination position is 40% or more of the total length X5A of the first packaging joint 5A in the vertical direction. The total length (X43 + X44) of the vertical length X43 of the third movement restricting section 43 and the vertical length X44 of the fourth movement restricting section 44 at the destination position is 40% or more of the total length X5B of the second packaging joint 5B in the vertical direction. The sheet structure 1 only needs to satisfy at least one of (X41+X42)≧(X5A×0.4) and (X43+X44)≧(X5B×0.4), and preferably both. Movement restricting portions 40 extending into the packaging space 3 are provided at the four corners where the vertical side surface 15 and the horizontal side surface 17 intersect. The movement restricting portions 40 at the four corners in the planar direction of the packaging body 2 can move the sheet laminate 50 housed in the packaging space 3 towards the center in the planar direction and restrict its movement. As a result of the applicant's diligent research, it has been found that by satisfying X40≧(X5×0.4), displacement of the sheet laminate 50 within the packaging body 2 can be effectively suppressed. In particular, in a 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 planar direction is restricted by the movement restricting part 40, allowing for proper removal through the packaging opening 7, and enabling continued removal of sheets 51 one by one even when the number of remaining sheets is small.

[0035] The movement restricting section 40 extends into the packaging space 3 from both the upper surface 11 and the lower surface 12, and may reach the packaging joint 5. With this configuration, the movement restricting section 40 can also restrict the movement of the sheet laminate 50 in the thickness direction T. In particular, because the movement restricting section 40 extends from the lower surface 12 side, the movement of the sheet laminate 50 can be continuously restricted even when the number of remaining sheets is small, allowing the user to properly remove each sheet one by one until the very last one. Furthermore, the packaging joint is the part where the packaging sheets 4 are joined together and is relatively rigid. Because the movement restricting section 40 reaches this highly rigid part, the position of the movement restricting section 40 is less likely to shift, and it is easier to exert the effect of suppressing the displacement of the sheet structure by the movement restricting section 40.

[0036] As shown in Figure 4, the inner edge 40X2 of the movement restricting portion 40 in the vertical direction X may be located inward in the vertical direction X than the outer edge 7X1 of the packaging opening 7 in the vertical direction X. With 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 laminate 50 in the vertical direction X can be aligned so as to overlap the packaging opening 7. In addition, the distance 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. With this configuration, the packaging opening 7 can be arranged overlapping over the entire vertical direction X of the range in which the movement of the vertical direction X is restricted by the movement restricting portion 40. Therefore, it becomes easier to remove the sheet 51 through the packaging opening 7. Furthermore, in the embodiment where each sheet 51 is folded starting from a fold line FL along the transverse direction Y, it is preferable that the packaging opening 7 is positioned on the upper surface 11 side of each sheet 51 and overlaps with the edge 51Y extending in the transverse direction Y (see Figure 1). Therefore, the outer edge 7X1 of the packaging opening 7 in the vertical direction X may be located further out in the vertical direction X than the edge 51Y of the sheet 51.

[0037] The inner edge 40Y2 in the lateral direction Y of the movement restricting portion 40 may be located inside the lateral direction Y of the outer edge 50Y1 in the lateral direction Y of the sheet laminate 50. Further, the inner edge 40X2 in the longitudinal direction X of the movement restricting portion 40 may be located inside the longitudinal direction X of the outer edge 50X1 in the longitudinal direction X of the sheet laminate 50. Further, the inner edge 40T2 in the thickness direction T of the movement restricting portion 40 may be located inside the thickness direction T of the outer edge 50T1 in the thickness direction T of the sheet laminate 50. According to this configuration, the movement restricting portion 40 can restrict the movement of the sheet laminate 50 in any of the thickness direction T, the lateral direction Y, and the longitudinal direction X, and can position the sheet laminate 50.

[0038] As shown in FIG. 2, when the length in the lateral direction Y of the packaging space 3 is Y3, the length in the lateral direction Y of the sheet laminate 50 is Y50, and the length in the lateral direction Y of the packaging opening 7 is Y7, Y3 - Y50 < Y7 may be satisfied. According to this configuration, even if the position of the sheet laminate 50 in the lateral direction Y in the package 2 is displaced, the packaging opening 7 is arranged to overlap the sheet laminate 50. Therefore, the sheet 51 can be continuously taken out through the packaging opening 7. Note that when the number of sheets 51 in the sheet laminate 50 decreases, the length Y3 in the lateral direction Y of the packaging space 3 becomes longer, and Y3 - Y50 < Y7 may not be satisfied. However, even in a case where Y3 - Y50 < Y7 is not satisfied in a form where the number of sheets 51 is small, it is only necessary that Y3 - Y50 < Y7 is satisfied in a state where all the sheets 51 are laminated (state before use).

[0039] As shown in FIG. 3, the inner edge 5Y2 in the lateral direction Y of the packaging joint portion 5 may be located on the lower surface 12 side of the center 3T3 in the thickness direction T of the packaging space 3. The movement restricting portion 40 has reached the packaging joint portion 5. Since the packaging joint portion 5 is located on the lower surface 12 side of 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 movement restricting portion 40 can position the remaining sheets with a reduced number of sheets. Therefore, particularly in a state where the number of remaining sheets is small and the position of the sheet 51 is likely to move, the sheet 51 can be arranged at an appropriate position, and the sheets 51 can be continuously taken out one by one.

[0040] At least one of the horizontal length Y7 and the vertical length X7 of the packaging opening 7 may be longer than the thickness length T3 of the packaging space 3. That is, the sheet structure 1 may satisfy at least one of Y7 > T3 and X7 > T3. With this configuration, since either the horizontal length Y7 and the vertical length X7 of the packaging opening 7 are longer than the thickness length T3 of the packaging space 3, it is easy to reach the bottom surface of the packaging space 3 with a finger, and it is easy to take out sheets 51 one by one through the packaging opening 7 until the last sheet 51. The packaging opening 7 may also be elongated vertically. With this configuration, even if the sheet stack 50 shifts in the vertical direction X, it is easy to continue taking out sheets 51 through the packaging opening 7. In a modified example, the packaging opening 7 may be elongated horizontally. With this configuration, even if the sheet stack 50 shifts in the horizontal direction Y, it is easy to continue taking out sheets 51 through the packaging opening 7.

[0041] As shown in Figure 2, the lateral gap (D1+D2) between the sheet laminate 50 and the inner surface of the packaging body 2 may be 10 mm or more, preferably 20 mm or more. The inner surface of the packaging body 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 laminate 50, and D2 may be the distance in the lateral direction Y between the second packaging joint 5B and the sheet laminate 50. With this configuration, the position of the sheet laminate 50 in the lateral direction Y can be shifted within the packaging body 2. For example, when the sheets 51 are used continuously, the length in the lateral direction Y of the packaging body 2 can be shortened to make it more compact. Making the packaging body 2 more compact makes it easier to determine the remaining number of sheets 51 from the outside of the packaging body 2. Also, making the packaging body 2 more compact allows air to be removed from the packaging space 3, suppressing the drying of the sheets 51.

[0042] Also, the gap (D1 + D2) between the sheet laminate 50 and the inner surface of the package 2 in the lateral direction Y may be smaller than the length T50 of the sheet laminate 50 in the thickness direction T. According to this configuration, the excess in the lateral direction Y of the package 2 is likely to be arranged along the side surface of the sheet laminate 50, and it is difficult for the excess to be arranged on the upper surface side and the lower surface side of the package 2. If the sheet structure 1 is housed in the exterior body with the excess arranged on the upper surface 11 side and the lower surface 12 side of the package 2, there is a risk that the packaging opening 7 may be unintentionally blocked by the excess, or the sheet laminate 50 may be housed in the exterior body in a bent state, making it difficult to smoothly pull out the sheet 51. However, by satisfying (D1 + D2) < T50, the sheet 51 is not arranged on the upper surface 11 side and the lower surface 12 side of the sheet laminate 50, and it is easy to continuously and smoothly take out the sheet 51.

[0043] (3) Configuration of the exterior body Next, referring to FIGS. 6 to 8, the exterior body 60 will be described. FIG. 6 is a perspective view of the exterior body 60 and the sheet structure 1, FIG. 7 is a view of the exterior space 69 of the exterior body 60 as seen from the lower surface 12 side, and FIG. 8 is a schematic cross-sectional view of the exterior body 60 according to a modified example. The exterior body is attached to and used with the sheet structure 1. The exterior body 60 has a longitudinal direction X and a lateral direction Y that extend in the plane direction of the sheet 51 and are perpendicular to each other, and a thickness direction T that extends in the stacking direction of the sheet 51. Each direction of the exterior body 60 coincides with each direction of the sheet structure 1. The exterior body 60 has an exterior opening 67 that overlaps at least a part of the packaging opening 7 and serves as an outlet for the sheet 51.

[0044] The exterior body 60 is composed only of a covering portion 61 that covers at least a part of the upper surface 11 of the sheet structure 1. The covering portion 61 may be detachably attached to the sheet structure 1, or it may have an enclosing portion 62 that is integrated with the covering portion 61 and surrounds the entire sheet structure 1. In this embodiment, the exterior body 60 has a covering portion 61 and an enclosing portion 62. The covering portion 61 covers the upper surface 11 of the sheet structure 1. The enclosing portion 62 is integrated with the covering portion 61 and covers the sides and bottom of the sheet structure 1. The enclosing portion 62 has a bottom area 612 that covers the bottom surface 12, and a side area 615 that covers a pair of vertical sides 15 and a pair of horizontal sides. The bottom area 612 is configured to be detachably attached to the side area 615. With the bottom area 612 removed from the side area 615, the sheet structure 1 can be inserted into and removed from the exterior body 60. The exterior body 60 has an exterior space 69 that accommodates the sheet structure 1. The exterior space 69 is the area enclosed by the surrounding portion (side region 615 and bottom region 612) 62 and the covering portion 61. The length Y69 in the lateral direction of the exterior space 69 is the lateral distance between the side regions 615 located on the outside of the pair of vertical sides, and the length X69 in the vertical direction of the exterior space 69 is the distance X in the vertical direction between the side regions 615 located on the outside of the pair of horizontal sides 17. In addition, the length T69 in the thickness direction of the exterior space 69 is the distance T in the thickness direction between the covering portion 61 and the bottom region 612.

[0045] In the case where the exterior body 60 is composed only of a covering portion 61, the covering portion 61 may have an adhesive portion and be attached to the outer surface of the sheet structure 1 via the adhesive portion. An example of an exterior body consisting only of a covering portion 61 is a configuration having a lid portion that covers the exterior opening 67 so as to be openable and closable, a base portion arranged around the exterior opening 67, and a hinge portion that serves as the opening and closing pivot point for the lid portion relative to the base portion. When the user takes out the sheet 51, they operate the lid portion using the hinge portion as the pivot point, and when the user does not take out the sheet 51, they operate the lid portion to cover the exterior opening 67.

[0046] The exterior opening 67 may be vertically long or horizontally long. The exterior opening of the present embodiment is horizontally long and has a separation guiding portion 68 that bulges inward in the vertical direction X at the center in the horizontal direction Y of the exterior opening 67. The separation guiding portion 68 protrudes inward from the opening outer edge which is the outer edge of the exterior opening 67 in plan view, and is configured to guide the separation of the sheets 51. The separation guiding portion 68 may be a portion that protrudes inward in the vertical direction X from the outer edge in the vertical direction X of the exterior opening 67. In a modification, the separation guiding portion 68 may be a portion that protrudes inward in the horizontal direction Y from the outer edge in the horizontal direction Y of the exterior opening 67. The user pulls out the sheet 51 through the packaging opening 7 and the exterior opening 67. At this time, when the separation guiding portion 68 hits the sheet 51 and there is a possibility that both the sheet to be taken out and the next sheet 51 (located on the lower surface 12 side) are to be pulled out together, the separation guiding portion 68 functions so that only the sheet to be taken out is pulled out.

[0047] If the horizontal length of the packaging space 3 of the package 2 in the horizontal direction is Y3, the horizontal length in the horizontal direction Y of the sheet laminate 50 is Y50, and the horizontal length in the horizontal direction Y of the exterior opening 67 is Y67, then Y3 - Y50 < Y67 may be satisfied. According to this configuration, even if the position of the sheet laminate 50 in the horizontal direction Y in the package 2 is displaced, the exterior opening 67 is arranged to overlap the sheet laminate 50, and the sheet 51 can be continuously taken out through the exterior opening 67.

[0048] At least one of the horizontal length Y of the exterior opening 67 and the vertical length X of the exterior opening 67 in the vertical direction X may be longer than the length T69 in the thickness direction T of the exterior space 69. According to this configuration, since either the horizontal length of the exterior opening 67 or the vertical length of the packaging opening is longer than the length in the thickness direction of the exterior space, it is easy for a finger to reach the lower surface of the exterior space 69, and it is easy to take out the last sheet through the exterior opening 67.

[0049] The outer casing 60 may have ribs 70 that protrude inward within the outer casing space 69 and restrict the movement of the package 2. Figure 7 is a view of the outer casing 60 from the bottom side, with the bottom region removed, and the outer casing 60 is provided with four ribs 70 that protrude inward into the outer casing space 69. Each rib 70 may be spaced apart in the vertical direction X and also spaced apart in the horizontal direction Y. The ribs 70 extend inward in the horizontal direction Y from each of the two end faces of the outer casing space 69 in the horizontal direction Y. The horizontal distance G70Y between the ribs 70 is shorter than the horizontal length Y2 of the package 2 and longer than the horizontal distance G40Y between the movement restricting sections 40. With this configuration, the movement of the package 2 in the horizontal direction Y can be restricted by the ribs 70. Furthermore, since the lateral Y spacing G40Y of the movement restricting section 40 is shorter than the lateral Y spacing between the ribs 70, the movement of the package 2 can be restricted by the ribs 70, and the movement of the sheet stack 50 inside the package 2 can be restricted by the movement restricting section 40. In other words, the movement of the sheet stack 50 can be restricted in stages, the positioning of the sheet stack 50 can be controlled, and the bias of the sheet stack 50 can be suppressed.

[0050] The ribs 70 may extend inward in the longitudinal direction from both ends of the outer packaging space 69 in the longitudinal direction X. The longitudinal spacing G70X of the ribs 70 is shorter than the longitudinal length X2 of the packaging body 2 and longer than the longitudinal spacing G40X between the movement restricting parts 40. With this configuration, the movement of the packaging body 2 in the longitudinal direction X can be restricted by the ribs 70. Furthermore, since the longitudinal spacing G40X between the movement restricting parts 40 is shorter than the longitudinal spacing G70X between the ribs 70, the movement of the packaging body 2 in the longitudinal direction X can be restricted by the ribs 70, and the movement of the sheet laminate 50 inside the packaging body 2 can be restricted by the movement restricting parts 40. In other words, the movement of the sheet laminate 50 can be restricted in stages, the positioning of the sheet laminate 50 can be controlled, and the bias of the sheet laminate 50 can be suppressed.

[0051] Figure 8 is a schematic cross-sectional view of the modified exterior body 60P. The cross-section shown in Figure 8 is a cross-section along a plane extending in the thickness direction T and the transverse direction Y. In the modified exterior body 60P, the side region 615 is configured to be separable in the vertical direction. The upper side region 6151 is integrated with the cover portion 61, and the lower side region 6152 is integrated with the bottom region 612. The cover portion 61 and the upper side region 6151 are configured to be openable and closable relative to the lower side region 6152 via hinges or the like, and are configured to allow the sheet structure 1 to be inserted and removed when open. The modified exterior body 60P is provided with ribs 70P that restrict the movement of the sheet structure 1 in the thickness direction T. The ribs 70P of the exterior body 60P shown in Figure 8 extend inward from the bottom region 612 in the thickness direction T. Furthermore, the ribs 70P only need to extend inward in the thickness direction T from at least one of the end faces of the outer packaging space 69 in the thickness direction T, and may also extend inward in the thickness direction T from the inner surface of the cover portion 61. In a configuration where the ribs 70P are spaced apart vertically on both sides, the distance between the ribs 70P in the thickness direction T may be shorter than the length T2 of the packaging body 2 in the thickness direction T, and longer than the distance G40T between the movement restricting portions 40 in the thickness direction T at the outer edge of the sheet laminate 50 in the lateral direction Y. Also, in a configuration where the ribs 70 are provided only on the upper or lower side, the distance G70T between the inner edge of the rib 70 in the thickness direction T and the upper or lower end of the outer packaging space 69 facing the rib may be shorter than the length T2 of the packaging body 2 in the thickness direction T, and longer than the distance G40T between the movement restricting portions 40 in the thickness direction T at the outer edge 50Y1 of the sheet laminate. G70T is the distance in the thickness direction T between the upper end of the rib 70P and the upper end of the outer packaging space 69 when the rib 70P is located on the lower side, and the distance in the thickness direction T between the lower end of the rib 70P and the lower end of the outer packaging space 69 when the rib 70P is located on the upper side. Note that the length T2 of the packaging body 2 in the thickness direction T and the distance G40T between the movement restricting parts 40 in the thickness direction T are the lengths before the sheet structure 1 is housed inside the outer packaging body, not when it is housed inside. With this configuration, by housing the sheet structure 1 inside the outer packaging body, the movement of the packaging body 2 in the thickness direction T can be restricted by the rib 70P, and furthermore, the movement of the sheet laminate 50 inside the packaging body 2 can be restricted by the movement restricting part 40.In other words, the movement of the sheet laminate 50 can be restricted in stages, allowing for precise positioning of the sheet laminate 50 and suppressing any bias in the sheet laminate 50.

[0052] Although the present invention has been described in detail above using the embodiments described herein, it will be 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 in modified and altered forms without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description herein is for illustrative purposes only and is not intended to be restrictive in any way to the present invention. In the embodiments described above, the movement restricting portion 40 is composed of a 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 of a material other than a sheet. [Explanation of symbols]

[0053] 1: Sheet structure 2: Packaging 3: Packaging space 4: Packaging sheet 5: Packaging joint 7: Packaging opening 11:Top surface 12: Bottom surface 15: Vertical side 17: Side view 40, 41, 42, 43, 44: Movement control section 50: Sheet laminate 51: Sheet 60, 60P: Exterior 61: Covering part 62: Enclosed section 67: Exterior opening 68: Separation guide part 69:Exterior space 612: Bottom area 615: Side area 70: Rib 70, 70P: Rib T: Thickness direction X: Vertical direction Y: Horizontal direction

Claims

1. An outer casing is used attached to a sheet structure having a sheet laminate in which multiple sheets are stacked and a packaging body having a packaging opening that serves as an outlet for the sheets, and overlaps with at least a portion of the packaging opening and has an outer opening that serves as an outlet for the sheets, The exterior body extends in the planar direction of the sheet and has longitudinal and transverse directions that are perpendicular to each other, and a thickness direction that extends in the stacking direction of the sheet. Let Y3 be the lateral length of the packaging space of the aforementioned packaging body. The lateral length of the sheet laminate is defined as Y50. If the lateral length of the exterior opening is Y67, Y3 - Y50 < Y67 is satisfied, The outer casing comprises an outer space for housing the sheet structure and four ribs that protrude inward within the outer space and restrict the movement of the packaged body. The ribs are arranged at intervals in the longitudinal direction and extend inward in the transverse direction from each of the transverse end faces of the exterior space. The lateral spacing between the ribs is shorter than the lateral length of the packaging body. An outer packaging in which the longitudinal spacing between the ribs is shorter than the longitudinal length of the packaging body.

2. The exterior body according to claim 1, wherein at least one of the lateral length Y67 and the vertical length X67 of the exterior opening is longer than the thickness length T69 of the exterior space.

3. The packaging body according to claim 1 or claim 2, wherein the packaging opening has a vertically elongated shape in which the length in the vertical direction is longer than the length in the horizontal direction.

4. The outer packaging according to any one of claims 1 to 3, wherein the lateral length of the packaging opening is shorter than the lateral length of the outer packaging opening.

5. The exterior body according to any one of claims 1 to 4, wherein each of the four ribs extends from both lateral end faces of the exterior space toward the lateral inward direction toward the longitudinal inward direction.

Images