Rolled body storage box

Abstract

To provide a rolled body storage box with high operability and handleability.SOLUTION: A rolled body storage box 10 includes: a storage portion 20 capable of storing a rolled body 11 around which a film F is wound, including a front plate 30, a bottom plate 31, a rear plate 32 and side plates 34, and having a top face portion which is open; and a lid portion 21 that can open and close an opening on the top face of the storage portion 20 and includes a cover plate 40 and a cover piece 41. The lid portion 21 is configured to rotate relative to the storage portion 20 about a ridgeline between the cover plate 40 and the rear plate 32 as a pivot point to open and close the opening. A maximum lid-opening load with an opening angle of the lid portion 21 that is greater than 0° and less than 90°is 2.0 N or less, and a ratio of the maximum lid-opening load with the opening angle of the lid portion 21 that is greater than 90° and less than 180° to the maximum lid-opening load with the opening angle of the lid portion 21 that is greater than 0° and less than 90° is 2.0 or more.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present application relates to a wound body housing box. [Background technology]

[0002] Films such as wraps and foils are wound into a roll around a long cylindrical core (a roll), and then stored in a long, rectangular parallelepiped roll storage box.

[0003] The wound body storage box has a storage section that can store the wound body and has an open top, and a lid section that opens and closes the opening on the top of the storage section. The storage section is composed of a front plate, a bottom plate, a rear plate, and side plates, etc., and the lid section is composed of a lid plate that covers the opening on the top of the storage section, a cover piece that extends from the lid plate toward the front plate, and a cutting blade provided at the tip of the cover piece, etc. (see Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2018-27807 A [Patent Document 2] JP 2018-27808 A Summary of the Invention [Problem to be solved by the invention]

[0005] When using the film, for example, a user holds the roll storage box with his / her left hand, opens the lid with his / her left hand, and then grabs and pulls out the film with his / her right hand. At this time, the roll rotates inside the storage box, and the film peels off from the roll and is pulled out to the outside of the roll storage box. After pulling out the required length of film, the user closes the lid with his / her left hand, cuts the film using a cutting blade, and then uses the cut film for tableware, etc.

[0006] When using the film in this manner, the lid is opened and closed, and the movement of the lid relative to the container greatly affects the operability and handling of the roll container.

[0007] The present invention has been made in consideration of the above points, and has an object to provide a wound body storage box that is easy to operate and handle. [Means for solving the problem]

[0008] As a result of extensive research, the inventors have found that the above problem can be solved by a maximum lid-opening load of 2.0 N or less when the lid opening angle is from 0° to 90° or less, and a ratio of the maximum lid-opening load when the lid opening angle is from 90° to 180° or less to the maximum lid-opening load when the lid opening angle is from 0° to 90° or less is 2.0 or more, and have thus completed the present invention.

[0009] (1) A roll storage box comprising: a storage section capable of storing a roll around which a film is wound, the storage section including a front plate, a bottom plate, a rear plate, and side plates, and an open top surface; and a lid section capable of opening and closing the opening on the top surface of the storage section, the lid section including a lid plate and a cover piece, wherein the lid section is configured to rotate relative to the storage section using a ridgeline between the lid plate and the rear plate as a rotation fulcrum to open and close the opening, a maximum lid-opening load when the opening angle of the lid section is greater than 0° and less than 90° is 2.0 N or less, and a ratio of the maximum lid-opening load when the opening angle of the lid section is greater than 0° and less than 90° to the maximum lid-opening load when the opening angle of the lid section is greater than 90° and less than 180° is 2.0 or more. (2) The wound body storage box according to (1), wherein the ratio of the maximum lid-opening load when the opening angle of the lid portion is more than 90° and less than 180° to the maximum lid-opening load when the opening angle of the lid portion is more than 180° and less than 270° is 2.0 or more. Effect of the Invention

[0010] According to the present invention, a wound body storage box with high operability and handleability can be provided. [Brief description of the drawings]

[0011] [Figure 1] FIG. 2 is a perspective view showing an example of a configuration of a wound body accommodating device. [Diagram 2] FIG. 4 is a perspective view showing the wound body accommodating device when the lid portion is open. [Diagram 3] FIG. 2 is a perspective view showing the configuration of a wound body and a wound body storage box. [Figure 4] FIG. 4 is a development view of the front side of the wound body housing box. [Diagram 5] 1 is a front view of a roll-containing box with the opening strip removed. FIG. [Figure 6] 4 is a diagram showing an example of a ridge line and first and second coating regions of a wound body housing box. FIG. [Figure 7] FIG. 13 is a diagram for explaining a ridgeline including a pressed crease and a reverse crease. [Figure 8] FIG. 13 is a diagram for explaining an example of forming a half cut on an imaginary straight line. [Figure 9] FIG. 13 is a diagram for explaining an example of forming a half cut on a second line. [Figure 10] FIG. 13 is a diagram for explaining an apparatus for measuring the maximum load for opening the lid portion. [Figure 11] (a) is an explanatory diagram showing the state when the opening angle is 0°, (b) is an explanatory diagram showing the state when the opening angle is 90°, (c) is an explanatory diagram showing the state when the opening angle is 180°, and (d) is an explanatory diagram showing the state when the opening angle is 270°. [Figure 12] 13 is a graph showing the results of measuring the maximum load required to open the lid. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. Note that the same elements are given the same reference numerals and duplicated explanations will be omitted.

[0013] FIG. 1 is a perspective view showing an example of the wound body accommodating device 1. FIG. 2 is a perspective view showing the wound body accommodating device 1 in an unsealed state. FIG. 3 is a perspective view showing the wound body accommodating box 10 and the wound body 11 of the wound body accommodating device 1. In this specification, the terms "upper" and "lower" in the configuration of the wound body accommodating device 1 and the wound body accommodating box 10 are based on the position shown in FIG. 1, that is, the position when the bottom plate 31 (described later) of the wound body accommodating box 10 is placed down and the cover plate 40 is placed up. In addition, the front plate 30 side of the wound body accommodating box 10 is referred to as the "front", and the rear plate 32 side is referred to as the "rear". Furthermore, the longitudinal direction (left-right direction) of the wound body accommodating box 10 is referred to as "X", the front-rear direction perpendicular to the longitudinal direction X of the wound body accommodating box 10 is referred to as "Y", and the up-down direction of the wound body accommodating box 10 is referred to as "Z".

[0014] As shown in FIGS. 1 to 3, the rolled body accommodating device 1 has a rolled body accommodating box 10 and a rolled body 11 on which a film F is wound.

[0015] The rolled body storage box 10 has, for example, an elongated rectangular parallelepiped shape as a whole. The material constituting the rolled body storage box 10 is, for example, paper such as cardboard, coated cardboard, corrugated cardboard, etc., but is not limited thereto, and paper or other materials known in the industry may be appropriately selected and used. The rolled body 11 is constituted by winding the film F around a cylindrical core 12.

[0016] Fig. 4 is a development view showing the surface of the rolled body storage box 10 when the rolled body storage box 10 is developed. As shown in Figs. 3 and 4, the rolled body storage box 10 can store the rolled body 11 around which the film F is wound, and has a storage section 20 with an open top and a lid section 21 for opening and closing the opening on the top of the storage section 20.

[0017] As shown in FIG. 4, the storage section 20 has, for example, a front panel 30, a bottom panel 31, a rear panel 32, front panel side pieces 33, side panels 34, rear panel side pieces 35, a rear panel 36, and rear panel side pieces 37.

[0018] In the development view shown in Fig. 4, the back panel 36, the front panel 30, the bottom panel 31 and the back panel 32 each have a rectangular shape and are connected to one another in this order in the front-to-rear direction Y. The front panel side pieces 33 have a square shape and are connected to both ends of the front panel 30 in the left-right direction X. The side panels 34 have a square shape and are connected to both ends of the bottom panel 31 in the left-right direction X. The back panel side pieces 35 have a square shape and are connected to both ends of the back panel 32 in the left-right direction X. The back panel side pieces 37 are connected to both ends of the back panel 36 in the longitudinal direction X.

[0019] The front plate 30 has a wavy cut 30a formed along both ends in the left-right direction X. A temporary fastening member G for temporarily fastening an end of the film F is provided on the surface of the front plate 30. The back plate 36 has a cut 36a formed therein, which is connected to a connection line (fold line) between the back plate 36 and the front plate 30.

[0020] As shown in FIG. 3, the storage section 20 is formed in a rectangular parallelepiped shape with an opening at the top. The front plate 30, the bottom plate 31, the rear plate 32, and the side plate 34 constitute five walls of the storage section 20 other than the top opening 20a. The back plate 36 is folded back inside the front plate 30 and disposed on the back surface of the front plate 30. The upper part of the front plate 30 above the cut 30a is separated from the lower part and rises forward. The upper part of the back plate 36 above the cut 36a is separated from the lower part and rises backward. The rear plate side piece 35 is folded back inside the side plate 34 to cover the inner surface of the side plate 34. The front plate side piece 33 and the rear plate side piece 37 are folded back to the inner surface of the side plate 34 and are interposed between the rear plate side piece 35 and the side plate 34.

[0021] As shown in the development view of FIG. 4, the lid portion 21 has a lid plate 40, a cover piece 41, a lid plate side piece 42, a cover side piece 43, an opening piece 44, and the like.

[0022] The cover plate 40 and the cover piece 41 have a rectangular shape that is long in the left-right direction X, and are connected to each other in the front-rear direction Y. The cover plate 40 is connected to the upper end of the rear plate 32, and the cover piece 41 is connected to the front end of the cover plate 40. The cover plate side pieces 42 have a rectangular shape and are connected to both ends of the cover plate 40 in the left-right direction X. The cover side pieces 43 have a rectangular shape and are connected to both ends of the cover piece 41 in the left-right direction X. The opening piece 44 is formed in a belt shape and is connected to the tip of the cover piece 41 so that it can be cut off. A connection line (cut line) H1 is formed between the cover piece 41 and the opening piece 44. The center of the cutting line H1 in the left-right direction X is curved convexly toward the opening piece 44 side, and both sides are curved convexly toward the cover piece 41 side. That is, the cutting line H1 is formed in a substantially M-shape.

[0023] The cover plate 40 extends from the upper end of the rear plate 32 toward the front plate 30 as shown in Fig. 3, and covers the upper surface of the storage section 20 and closes the opening when the lid part 21 is closed as shown in Fig. 1. The cover piece 41 extends from the front end of the cover plate 40 toward the front plate 30. The cover piece 41 has a vertical width smaller than that of the front plate 30, and is configured to cover the upper region of the front plate 30 when the lid part 21 is closed. As shown in Fig. 3, the cover side piece 43 is folded back inside the cover plate side piece 42 and covers the inner surface of the cover plate side piece 42.

[0024] 5 is a front view of the roll storage box 10 with the opening piece 44 cut away. As shown in FIG. 5, a cutting blade 50 is provided at the tip of the cover piece 41 to cut the film F pulled out from the roll 11 in the storage section 20.

[0025] The cutting blade 50 is formed, for example, in a saw blade shape. The cutting blade 50 has a thin plate shape made of, for example, metal, resin, vulcanized fiber, or the like, and is attached to the back surface of the tip of the cover piece 41. The shape of the cutting blade 50 is a conventionally known shape, such as a straight line, a V-shape, an arch shape, or the like. The cutting blade 50 may also be disposed on the ridge between the bottom plate 31 and the front plate 30.

[0026] As shown in Fig. 2, the cover 21 is configured to rotate relative to the storage section 20 around a ridgeline A between the cover plate 40 and the rear plate 32 as a rotation fulcrum to open and close the opening. As shown in Fig. 4 and Fig. 6, the ridgeline A serving as the rotation fulcrum includes a first line A1 and a second line A2 connected to both sides of the first line A1.

[0027] The first line A1 has, for example, a curved shape. The first line A1 is provided at the center of the ridge line A in the left-right direction (extension direction) X. The first line A1 has a first curved portion 60 that is curved convexly toward the cover plate 40 side, and a second curved portion 61 that is connected to both ends of the first curved portion 60 and is curved convexly toward the rear plate 32 side. The first line A1 has a wave shape as a whole.

[0028] The second line A2 has, for example, a straight line shape. The second line A2 is connected to the outer ends of the second curved portions 61 of the first line A1. The second line A2 may have a curved line shape.

[0029] As shown in FIG. 4, the rear plate 32 and the cover plate 40 have on their surfaces a first coating area 70 arranged along the ridge line A and a second coating area 71 arranged on both sides of the first coating area 70.

[0030] The first coating region 70 includes the ridge line A and is provided along the ridge line A. The first coating region 70 is provided in a corrugated band shape. The first coating region 70 has a first region 80 having a constant first width D1 and a second region 81 having a constant second width D1 provided on both sides of the first region 80. The first region 80 is disposed in a central position including the first line A1, and the second region 81 is disposed in a position including the second line A2. The first width D1 is greater than the second width D2.

[0031] The arithmetic mean height Sa (ISO 25178) of the first coating region 70 is less than 3 μm, preferably less than or equal to 2 μm. The first coating region 70 is formed, for example, by applying a first high-gloss varnish.

[0032] The second coating area 71 is adjacent to the first coating area 70 and is provided on the entire cover plate 40 and the rear plate 32. The second coating area 71 is spaced 2 mm or more from the ridge line A. The second coating area 71 has a substantially rectangular shape on the cover plate 40 and the rear plate 32. The second coating area 71 is formed on each of the cover plate 40 and the rear plate 32 from near one end to near the other end in the front-rear direction Y and from near one end to near the other end in the left-right direction X. The arithmetic mean height Sa (ISO 25178) of the second coating area 71 is 3 μm or more. The second coating area 71 has, for example, an embossed area 90 with unevenness. The second coating area 71 is formed, for example, by applying a third varnish having high water repellency on the second varnish. For example, the second varnish has a lower gloss than the first varnish.

[0033] A boundary line C1 between the first region 80 of the first coating region 70 and the second coating region 71 has the same shape as the first line A1, i.e., a curved shape. A boundary line C2 between the second region 81 of the first coating region 70 and the second coating region 71 has the same shape as the second line A2, i.e., a straight shape.

[0034] As shown in Figures 4 and 6, the second coating region 71 may have a non-embossed region 91 in the center of the cover plate 40 and the rear plate 32 in the left-right direction X. The non-embossed region 91 is formed linearly along the front-to-rear direction Y on the cover plate 40 and the rear plate 32. A plurality of non-embossed regions 91 are arranged in the left-to-right direction X. The non-embossed regions 91 are formed across both ends of the second coating region 71 in the front-to-rear direction Y on the cover plate 40 and the rear plate 32. For example, the non-embossed region 91 is formed by applying a third varnish that is different from the first varnish of the first coating region 70.

[0035] The second coating region 71 is provided on the cover plate 40, spaced apart from the ridge line E1 between the cover plate 40 and the cover piece 41 and the ridge line E2 between the cover plate 40 and the cover plate side piece 42. In other words, the second coating region 71 is not formed in the vicinity of the ridge line E1 and the ridge line E2 of the cover plate 40.

[0036] The second coating region 71 is provided on the rear plate 32, spaced apart from a ridge line E3 between the rear plate 32 and the bottom plate 31 and a ridge line E4 between the rear plate 32 and the rear plate side piece 35. In other words, the second coating region 71 is not formed in the rear plate 32 near the ridge line E3 and the ridge line E4.

[0037] The wound body storage box 10 is configured such that the maximum load P1 for opening the lid portion 21 when the opening angle α1 of the lid portion 21 is greater than 0° and less than 90° is 2.0N or less, and the ratio (P2 / P1) of the maximum load P2 for opening the lid portion 21 when the opening angle α1 of the lid portion 21 is greater than 90° and less than 180° to the maximum load P1 for opening the lid portion 21 when the opening angle α1 of the lid portion 21 is greater than 0° and less than 90° is 2.0 or more. The maximum load P1 for opening the lid may be 2.0N or less, 0.1N or more, preferably 1.5N or less, 0.2N or more. The ratio (P2 / P1) may be 2.0 or more, 6.0 or less, preferably 2.5 or more, 5.0 or less. The opening angle α1 of the lid portion 21 is defined as the angle at which the lid portion 21 is opened relative to the storage portion 20, with the ridge line A as the pivot point, from a state in which the lid portion 21 is completely closed relative to the storage portion 20, as shown in Figure 8 described below (the angle between the cover plate 40 of the lid portion 21 and the top opening 20a of the storage portion 20).

[0038] Furthermore, the wound body housing box 10 is configured so that the ratio (P3 / P2) of the maximum lid-opening load P3 when the opening angle α1 of the lid portion 21 is more than 180° and less than 270° to the maximum lid-opening load P2 when the opening angle α1 of the lid portion 21 is more than 90° and less than 180° is 2.0 or more. The ratio (P3 / P2) may be 2.0 or more and 6.0 or less, more preferably 2.5 or more and 5.0 or less. The ratio (P3 / P2) may be greater than the ratio (P2 / P1).

[0039] Examples of means for providing a wound body storage box 10 in which the maximum lid-opening load P1 when the opening angle α1 of the lid portion 21 is greater than 0° and less than or equal to 90° is 2.0 N or less, and the ratio P2 of the maximum lid-opening load when the opening angle α1 of the lid portion 21 is greater than 90° and less than or equal to 180° to the maximum lid-opening load P1 when the opening angle α1 of the lid portion 21 is greater than 0° and less than or equal to 90° is 2.0 or more include the following. These means may be used alone or in combination.

[0040] As one method, as shown in Fig. 7, the ridge line A serving as the pivot point may include a pressed crease a-1 and a reverse crease a-2. The ridge line A may have a pressed crease a-1, a reverse crease a-2, and a pressed crease a-1 in this order in the front-rear direction Y from the cover plate 40 toward the rear plate 32. That is, the ridge line A may have a recess, a protrusion, and a recess successively in this order in the front-rear direction Y perpendicular to the extension direction of the ridge line A (the left-right direction X). The ridge line A including the pressed crease a-1 and the reverse crease a-2 may be formed across the first line A1 and the second line A2 (from one end Ae to the other end Ae in the left-right direction X of the ridge line A).

[0041] As another method, as shown in Fig. 8, a half slit R may be formed on an imaginary straight line B that linearly connects both ends Ae of the ridge line A in the left-right direction X on the rear surface of the wound body storage box 10. The half slit R may be formed along the imaginary straight line B in an area where the first line A1 of the ridge line A is located. In this case, the half slit R does not need to be formed in an area where the first line A1 and the imaginary straight line B intersect.

[0042] As another means, as shown in Fig. 9, a half cut R may be formed on the second line A2 of the ridge line A on the back surface of the wound body housing box 10. In this case, the half cut R does not need to be formed on the first line A1.

[0043] Here, a method for measuring the maximum loads P1, P2, and P3 for opening the lid 21 will be described. The wound body storage box 10 is an unused one, and is placed in an environment of 23°C and 50% RH for three days or more before being subjected to the measurement. First, as shown in FIG. 10, the force gauge 100 and the cover piece 41 of the wound body storage box 10 are connected with a paper strip 101 having a length of 100 mm and a width of 25 mm and having double-sided tape attached to both ends. In this state, the load of the force gauge is reset to zero. Then, with the positions of the force gauge 100 and the wound body storage box 10 fixed, the storage part 20 of the wound body storage box 10 is rotated with respect to the lid 21 at a speed of 90 (±10) degrees / second with the ridge line A as the rotation fulcrum, and the load is measured by the force gauge 100 at that time. The opening angle α1 when the lid 21 is completely closed is set to 0° (FIG. 11(a)). The maximum load measured when the opening angle α1 is between 0° and 90° (FIG. 11(b)) is defined as the maximum lid-opening load P1. Furthermore, the maximum load measured when the opening angle α1 is between 90° and 180° (FIG. 11(c)) is defined as the maximum lid-opening load P2. The maximum load measured when the opening angle α1 is between 180° and 270° (FIG. 11(d)) is defined as the maximum lid-opening load P3. If there is a possibility that the load measured when the cover side piece 43 and the claw portion extending from the side panel 34 come out of engagement during opening of the lid may be picked up, the claw portion extending from the side panel 34 may be cut off in advance, for example, so that the maximum lid-opening load can be measured.

[0044] According to this embodiment, the lid 21 of the wound body storage box 10 is configured to rotate with respect to the storage part 20 around the ridge A between the lid plate 40 and the rear plate 32 as a rotation fulcrum to open and close the top opening 20a, and the maximum lid-opening load P1 when the opening angle α1 of the lid 21 is from 0° to 90° or less is 2.0 N or less, and the ratio of the maximum lid-opening load P2 when the opening angle of the lid 21 is from 90° to 180° or less to the maximum lid-opening load P1 when the opening angle α1 of the lid 21 is from 0° to 90° or less is 2.0 or more. In this case, the maximum lid-opening load P1 when the lid 21 is opened from an opening angle of 0° to 90° is extremely small, and the lid-opening load and the lid-closing load are close to each other, so that the lid can be opened and closed as intended by the user. In addition, the maximum load P2 for opening the lid 21 when opening the lid from an opening angle of 90° to 180° increases rapidly, and the load for opening the lid becomes larger than the load for closing the lid, so that the user's action can be naturally guided in the direction of decreasing the lid opening angle. This allows the user to use the lid 21 without opening it too much. As a result, for example, when cutting the film F of the roll 11, it is possible to prevent the lid 21 from being opened too far beyond 90°, causing the leading end of the remaining film F to stick to the film F of the roll 11, making it difficult to peel off the leading end of the film F the next time, or preventing the film F from being cut cleanly in a straight line. This improves the handling and operability of the roll storage box 10.

[0045] The ratio of the maximum lid-opening load P3 when the opening angle α1 of the lid part 21 is more than 180° and is less than 270° to the maximum lid-opening load P2 when the opening angle α1 of the lid part 21 is more than 90° and is less than 180° is 2.0 or more. This applies a larger load when the lid part 21 is opened to more than 180°, preventing the lid part 21 from accidentally opening too far.

[0046] Fig. 12 shows the results of measuring the maximum lid-opening loads P1, P2, and P3 using an example of the wound body housing box 10. As shown in Fig. 12, the maximum lid-opening load P1 was 1.9 N, the maximum lid-opening load P2 was 4.4 N, and the maximum lid-opening load P3 was 11.0 N. The ratio of the maximum lid-opening load P2 to the maximum lid-opening load P1 was 2.3, and the ratio of the maximum lid-opening load P3 to the maximum lid-opening load P2 was 2.5.

[0047] In addition, when a conventional rolled body storage box (manufactured by Kureha Corporation, product name "NEW Cling Wrap") was used for measurement, the maximum lid-opening load Q1 when the lid opening angle was greater than 0° and less than 90° was 2.8 N, the maximum lid-opening load Q2 when the lid opening angle was greater than 90° and less than 180° was 8.9 N, and the maximum lid-opening load Q3 when the lid opening angle was greater than 180° and less than 270° was 12.9 N. The ratio of the maximum lid-opening load Q2 to the maximum lid-opening load Q1 was 3.2, and the ratio of the maximum lid-opening load Q3 to the maximum lid-opening load Q2 was 1.4.

[0048] Although the preferred embodiment of the present invention has been described above with reference to the accompanying drawings, the present invention is not limited to such an example. It is clear that a person skilled in the art can come up with various modified or altered examples within the scope of the ideas described in the claims, and it is understood that such examples also naturally belong to the technical scope of the present invention.

[0049] The roll storage box 10 is not limited to the above embodiment, and may have other configurations and shapes. The storage section 20 may have at least a front plate, a bottom plate, a rear plate, and a side plate, and the lid section 21 may have at least a lid plate and a cover piece. The film F is not limited to a wrap film for food packaging, and may be aluminum foil, cooking sheet, or the like. The material of the film F is not limited. From the viewpoint of suppressing the trouble that the tip of the film sticks to the film of the roll and becomes difficult to peel off the tip of the film next time, it is more suitable for a roll storage box of a wrap film for food packaging having self-adhesiveness. [Industrial Applicability]

[0050] The present invention is useful in providing a wound body storage box that is easy to operate and handle. [Explanation of symbols]

[0051] 1. Winding body storage device 10. Rolled body storage box 11 Winding body 20 Storage unit 21 Lid 30 Front Panel 31 Bottom plate 32 Rear plate 34 Side Panel 40 Lid plate 41 Cover piece 70 First Coating Area 71 Second Coating Area F Film A Ridgeline A1 First Line A2 Second Line

Claims

1. A roll storage box comprising: a storage section capable of storing a roll around which a film is wound, the storage section including a front plate, a bottom plate, a rear plate, and side plates, and an open top surface; and a lid section capable of opening and closing the opening at the top surface of the storage section, the lid section including a lid plate and a cover piece, the cover portion is configured to rotate relative to the storage portion around a ridgeline between the cover plate and the rear plate as a rotation fulcrum to open and close the opening, The maximum load for opening the lid when the opening angle of the lid is more than 0° and less than 90° is 2.0 N or less, and The ratio of the maximum load for opening the lid when the opening angle of the lid is more than 90° and less than 180° to the maximum load for opening the lid when the opening angle of the lid is more than 0° and less than 90° is 2.0 or more. Rolled body storage box.

2. The ratio of the maximum load for opening the lid when the opening angle of the lid is more than 180° and less than 270° to the maximum load for opening the lid when the opening angle of the lid is more than 90° and less than 180° is 2.0 or more. The wound body storage box according to claim 1 .

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