Winding material storage box and winding material storage device

Abstract

To facilitate opening and closing the lid of the winding material storage box. [Solution] A winding body storage box 10 is configured to house a winding body 11 of film F in the internal space 20b, comprising a storage section 20 having an internal space 20b and an opening 20a formed by a front plate 30, a bottom plate 31, a rear plate 32, and a side plate 34, and a lid section 21 attached to the storage section 20 to open and close the opening 20a, having a top plate 40 connected to the upper end 32U of the rear plate 32 and a cover piece 41 connected to the front end 40F of the top plate 40, wherein at least one linear recess 60 is formed in the longitudinal center of the surface of the cover piece 41. The depth D of the linear recess 60 is 0.4 times or more and 0.8 times or less the thickness T of the cover piece 41, and the value obtained by multiplying the depth D of the linear recess 60 by its width W is 0.2 to 2.0.

Description

Technical Field

[0001] The present invention relates to a winding body storage box and a winding body storage device.

Background Art

[0002] Conventionally, a winding body formed by winding a wrap film, paper, or the like around a core body has been used for transportation, sales, use, etc. in a state of being stored in a substantially rectangular parallelepiped cosmetic box. Currently, as a means for making such a cosmetic box (winding body storage box) easier to hold, it has been proposed to reduce the gap formed between the user's hand and the cosmetic box by chamfering or curving the corners of the cosmetic box (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, when trying to open and close the lid of the cosmetic box with respect to the chamfered or curved corners as disclosed in Patent Documents 1 and 2, since there is no folding line at the corners, the load during opening and closing of the lid increases. When the load during opening and closing of the lid increases in this way, for example, if the thumb is released while the lid is being opened, the lid closes forcefully, and troubles such as contact between the blade and the finger may occur, or the film may be cut in a state where the lid is not completely closed, and the pulled-out film may not adhere to the adhesive portion applied to the front plate of the cosmetic box and may wind back.

[0005] The present invention has been made in view of such circumstances, and an object thereof is to facilitate the opening and closing of the lid of the winding body storage box. [Means for solving the problem]

[0006] A first aspect of the present invention for achieving the above objective is a winding body storage box configured to house a winding body of film in its internal space, comprising: a storage section having an internal space and an opening formed by a front plate, a bottom plate, a rear plate, and side plates; and a lid attached to the storage section to open and close the opening, having a top plate connected to the upper end of the rear plate and a cover piece connected to the front end of the top plate, wherein at least one linear recess is formed in the longitudinal center of the surface of the cover piece, the depth of the linear recess is 0.4 times or more and 0.8 times the thickness of the cover piece, and the value obtained by multiplying the depth and width of the linear recess is 0.2 or more and 2.0 or less.

[0007] Adopting this configuration, at least one linear recess is formed approximately in the longitudinal center of the surface of the lid's covering piece, the depth of the linear recess is set within a specific range (0.4 to 0.8 times the thickness of the covering piece), and the product of the depth and width of the linear recess is set within a specific range (0.2 to 2.0). This has the advantage of making it easier for the user's thumb to grip the linear recess when opening and closing the lid of the storage box, and also suppressing cracking of the recess during punching. If the linear recess is too deep (exceeding 0.8 times the thickness of the covering piece), cracking of the recess is likely to occur during punching, and if the linear recess is too shallow (less than 0.4 times the thickness of the covering piece), it becomes difficult for the user's thumb to grip it, so both are undesirable. Furthermore, if at least one of the depths or widths of the linear recess (for example, the width) is too small, and the product of the two is too small (less than 0.2), the recess is more likely to crack during punching. Conversely, if at least one of the depths or widths of the linear recess (for example, the width) is too large, and the product of the two is too large (greater than 2.0), it becomes difficult to close the lid. Both of these conditions are undesirable.

[0008] In the winding body storage box according to the present invention, linear recesses can be formed parallel to the grid lines that form the boundary between the top plate and the cover piece.

[0009] Adopting this configuration has the advantage that, because the linear recess is formed parallel to the grid lines that form the boundary between the top panel and the lid piece, the user's thumb can easily grip the linear recess when opening and closing the lid.

[0010] In the winding material storage box according to the present invention, a flat portion can be formed between the score line and the linear recess in the cover piece. In this case, the distance between the score line and the linear recess can be set to 5 mm or more and 30 mm or less.

[0011] With this configuration, a flat portion of the lid is formed between the score line and the linear recess, and the distance between these score line and the linear recess is set within a specific range (5 mm to 30 mm). This has the advantage that when opening and closing the lid, the user's thumb can easily grip the linear recess, making it easier to open the lid. If the two are too close (the distance between them is less than 5 mm), it becomes difficult to fold along the score line during the folding process (i.e., it may fold at the linear recess), causing the box to bend easily. If the two are too far apart (the distance between them exceeds 30 mm), it becomes difficult to open the lid, so neither is desirable.

[0012] In the winding body containment box according to the present invention, linear recesses can be extended from the longitudinal center of the cover piece to the left and right along the longitudinal direction. In this case, the length of the linear recesses can be set to 10 mm or more and 100 mm or less, and 20% or less of the total length of the cover piece.

[0013] Adopting this configuration has the advantage that the linear recess extends from the longitudinal center of the cover piece to the left and right along the longitudinal direction, and its length is set within a specific range (10 mm to 100 mm and 20% or less of the total length of the cover piece), making it easier for the user's thumb to grip the linear recess when opening and closing the cover. If the linear recess is too short (less than 10 mm), it becomes difficult for the user's thumb to grip the linear recess, and if the linear recess is too long (more than 100 mm or 20% of the total length of the cover piece), it may cause the user to remove their thumb from the center when opening the cover and pulling out the film, potentially causing the film to come into contact with the saw blade at the end of the cover piece and resulting in a longitudinal tear of the film. Neither of these is desirable.

[0014] In the winding material storage box according to the present invention, the width of the linear recess can be set to 5 mm or less.

[0015] Adopting this configuration has the advantage that the width of the linear recess is set to a specific value (5 mm) or less, making it easier for the user's thumb to grip the linear recess when opening and closing the lid of the storage box. If the width of the linear recess exceeds 5 mm, it becomes difficult to close the lid, which is undesirable.

[0016] A second aspect of the present invention is a winding body storage box configured to house a winding body of film in its internal space, comprising: a storage section having an internal space and an opening formed by a front plate, a bottom plate, a rear plate, and side plates; and a lid attached to the storage section to open and close the opening, having a top plate connected to the upper end of the rear plate and a cover piece connected to the front end of the top plate, wherein at least one linear protrusion is formed approximately in the longitudinal center of the surface of the cover piece, the height of the linear protrusion is 0.2 times or more and 0.4 times or less the thickness of the cover piece, and the value obtained by multiplying the height and width of the linear protrusion is 0.1 to 1.0.

[0017] With this configuration, at least one linear protrusion is formed approximately in the longitudinal center of the surface of the lid's covering piece, and the height of the linear protrusion is set within a specific range (0.2 times or more and 0.4 times the thickness of the covering piece), and the value obtained by multiplying the height and width of the linear protrusion is set within a specific range (0.1 or more and 1.0 or less). As a result, when opening and closing the lid of the storage box, the user's thumb can easily grip the linear protrusion, making it easier to open and close the storage box, and the covering piece of the lid curves in the convex direction, which has the advantage of fitting more easily to the grip. If the linear protrusion is too high (exceeding 0.4 times the thickness of the covering piece), the central part of the storage box will curve excessively in the convex direction, which can impair operability such as closing the lid and cutting operations, and if the linear protrusion is too low (less than 0.2 times the thickness of the covering piece), it will be difficult for the user's thumb to grip it, so neither is desirable. Furthermore, if at least one of the height and width values ​​of the linear protrusion (for example, width) is too small, and the product of the two is too small (less than 0.1), the protrusion is more prone to cracking. Conversely, if at least one of the height and width values ​​of the linear protrusion (for example, width) is too large, and the product of the two is too large (greater than 1.0), it becomes difficult to close the lid. Both of these conditions are undesirable.

[0018] A third aspect of the present invention is a winding body storage device in which a winding body of film is stored in a winding body storage box according to the first or second aspect. Here, a polyvinylidene chloride film can be used as the film. [Effects of the Invention]

[0019] According to the present invention, it is possible to easily open and close the lid of the winding material storage box. [Brief explanation of the drawing]

[0020] [Figure 1] This is a perspective view of a winding material storage box according to an embodiment of the present invention. [Figure 2] Figure 1 is a perspective view showing the lid of the winding material storage box in the open position. [Figure 3] Figure 1 is a perspective view showing the rolled material removed from the rolled material storage box. [Figure 4] Figure 1 is an unfolded view of the front surface of the winding material storage box. [Figure 5] Figure 1 is a front view showing the rolled material storage box with the opening tab removed. [Figure 6] Figure 1 is a cross-sectional view of the cover piece (linear recess) of the lid of the winding material storage box. [Figure 7] Figure 1 is a cross-sectional view of the lid flap (linear projection) of the winding material storage box shown. [Modes for carrying out the invention]

[0021] Embodiments of the present invention will be described below with reference to the drawings. Note that the following embodiments are merely preferred examples, and the scope of application of the present invention is not limited to these.

[0022] <Overall configuration of the winding body housing device> First, the overall configuration of the winding body storage device 1 according to this embodiment will be described using Figures 1 to 5. In this specification, "up" and "down" in the configuration of the winding body storage device 1 and the winding body storage box 10 refer to the orientation shown in Figure 1, that is, the orientation when the bottom plate 31 (described later) of the winding body storage box 10 is at the bottom and the lid plate 40 (described later) is at the top. Also, the side of the winding body storage box 10 with the front plate 30 (described later) is referred to as "front," and the side with the rear plate 32 (described later) is referred to as "rear." Furthermore, the longitudinal direction (left-right direction) of the winding body storage box 10 is referred to as the "X direction," the front-back direction perpendicular to the longitudinal direction X of the winding body storage box 10 is referred to as the "Y direction," and the up-down direction of the winding body storage box 10 is referred to as the "Z direction."

[0023] As shown in Figures 1 to 3, the winding body storage device 1 according to this embodiment comprises a winding body storage box 10 and a winding body 11 on which the film F is wound.

[0024] As shown in Figure 1, the winding material storage box 10 has an overall elongated rectangular parallelepiped shape. The material used to construct the winding material storage box 10 is, for example, paper such as cardboard, coated cardboard, or corrugated cardboard, but other materials may be selected and used as appropriate.

[0025] As shown in Figures 2 and 3, the winding body storage box 10 is configured to house a winding body 11 on which the film F is wound, and includes a storage section 20 having an opening 20a formed at the top and an internal space 20b in which the winding body 11 is housed, and a lid section 21 that opens and closes the opening 20a of the storage section 20.

[0026] As shown in Figures 1 to 4, the storage section 20 includes a front plate 30, a bottom plate 31, a rear plate 32, a side piece 33 on the front plate, a side plate 34, a side piece 35 on the rear plate, a back plate 36, a side piece 37 on the back plate, and so on.

[0027] In the unfolded view of Figure 4, the back plate 36, front plate 30, bottom plate 31, and rear plate 32 each have a rectangular shape that is long in the left-right direction X, and are connected to each other in this order in the front-back direction Y. The side pieces 33 of the front plate have a stepped shape and are connected to both ends of the front plate 30 in the left-right direction X. The side plates 34 have a square shape and are connected to both ends of the bottom plate 31 in the left-right direction X. The side pieces 35 of the rear plate have a roughly square shape and are connected to both ends of the rear plate 32 in the left-right direction X. The side pieces 37 of the back plate are connected to both ends of the back plate 36 in the left-right direction X.

[0028] The front plate 30 has a wavy cutout 30a formed across both ends in the left-right direction X. The surface of the front plate 30 is provided with a temporary fastening member Q for temporarily securing the end of the film F. The back plate 36 has a cutout 36a formed thereon that connects to the connection line (fold line) between the back plate 36 and the front plate 30.

[0029] As shown in Figures 2 and 3, the storage section 20 is formed in the shape of a rectangular parallelepiped with an opening 20a at the top. The front plate 30, bottom plate 31, rear plate 32, and side plates 34 constitute the five wall surfaces of the storage section 20 other than the top surface, and together they form the internal space 20b of the storage section 20. The back plate 36 is folded inward to the front plate 30 and positioned on the back surface of the front plate 30. The part of the front plate 30 above the notch 30a is raised forward, away from the lower part. The part of the back plate 36 above the notch 36a is raised backward, away from the lower part. The rear plate side piece 35 is folded inward to the side plate 34 and covers the inner surface of the side plate 34. The front plate side piece 33 and the back plate side piece 37 are folded inward to the inner surface of the side plate 34 and interposed between the rear plate side piece 35 and the side plate 34.

[0030] As shown in the unfolded view of Figure 4, the lid portion 21 includes a top plate 40, a cover piece 41, a side piece 42 of the top plate, a side piece 43 of the cover piece, an opening piece 44, and so on.

[0031] The top plate 40 and the cover piece 41 have a roughly rectangular shape that is elongated in the left-right direction X, and are connected to each other in the front-back direction Y. The top plate 40 is connected to the upper end 32U of the rear plate 32, and the cover piece 41 is connected to the front end 40F of the top plate 40. The top plate side piece 42 has a roughly rectangular shape and is connected to both ends of the top plate 40 in the left-right direction X. The cover side piece 43 has a roughly rectangular shape and is connected to both ends of the cover piece 41 in the left-right direction X. The opening piece 44 is formed in a strip shape and is detachably connected to the tip of the cover piece 41. A connecting line (cutting line) P1 is formed between the cover piece 41 and the opening piece 44. The cutting line P1 is curved convexly towards the opening piece 44 at its center in the left-right direction X, and both sides are curved convexly towards the cover piece 41. That is, the cutting line P1 is formed in a roughly M shape.

[0032] As shown in Figures 1 to 3, the top plate 40 extends from the upper end 32U of the rear plate 32 toward the front plate 30, covering the upper surface of the housing 20 and closing the opening 20a when the lid 21 is closed. The cover piece 41 extends from the front end 40F of the top plate 40 toward the front plate 30. The cover piece 41 has a smaller vertical width than the front plate 30 and is configured to cover the upper area of ​​the front plate 30 when the lid 21 is closed. As shown in Figures 2 and 3, the cover side piece 43 is folded inward of the top plate side piece 42 and covers the inner surface of the top plate side piece 42. Preferably, the top plate side piece 42 has an area that covers at least the upper half of the side plate 34 of the housing 20.

[0033] As shown in Figure 5, the tip of the cover piece 41 is provided with a cutting blade 50 for cutting the film F pulled out from the winding body 11 in the storage section 20. The cutting blade 50 is formed, for example, in the shape of a saw blade. The cutting blade 50 has a thin plate shape, such as metal, resin, or vulcanized fiber, and is attached to the back surface of the tip of the cover piece 41. The shape of the cutting blade 50 can be, for example, straight, V-shaped, or arched. The cutting blade 50 may also be positioned on the ridge between the bottom plate 31 and the front plate 30.

[0034] As shown in Figure 3, the winding body 11 has a cylindrical core 12, and the film F is wound around the core 12. The core 12 can be made of paper or plastic, for example, having a length approximately the same as the length in the left-right direction X inside the winding body housing box 10. The winding body 11 may also be a so-called coreless type (one that does not have a core 12). The film F in this embodiment is a so-called wrap film (for example, a vinylidene chloride-based film, a polyethylene film, etc.). Note that the film F is not limited to wrap film for food packaging, but may also be aluminum foil, cooking sheet, etc.

[0035] <Linear recess> Next, the characteristic configuration (linear recess 60) of the winding body housing box 10 according to this embodiment will be described using Figure 6 and other figures.

[0036] As shown in Figures 1-2 and 4-5, a linear recess 60 with a specific configuration is formed approximately in the longitudinal center of the lid piece 41 of the lid portion 21 of the winding material storage box 10. The linear recess 60 is a part that allows the user to place their thumb when opening and closing the lid portion 21 relative to the storage portion 20. The linear recess 60 is formed parallel to the grid line (front end portion 40F of the top plate 40) that forms the boundary between the top plate 40 and the lid piece 41.

[0037] In this embodiment, the depth D of the linear recess 60 (depth dimension at the deepest position: see Figure 6) is set to 0.4 times or more and 0.8 times or less the thickness T of the cover piece 41 (see Figure 6), and the value obtained by multiplying the depth D of the linear recess 60 by the width W of the linear recess 60 (dimension in the vertical direction: see Figure 6) is set to 0.2 to 2.0. That is, in this embodiment, the linear recess 60 is configured to satisfy the following equations (1) and (2). In addition, in this embodiment, the width W of the linear recess 60 is set to 5 mm or less. 0.4T ≤ D ≤ 0.8T …… (1) 0.2 ≤ D × W ≤ 2.0 …… (2)

[0038] The linear recess 60 is configured in this way, which has the advantage of making it easier for the user's thumb to grip the linear recess 60 when opening and closing the lid 21 of the storage box 20, thus facilitating the opening and closing of the lid 21, and also suppressing cracking of the recess during punching. If the linear recess 60 is too deep (the depth D of the linear recess 60 exceeds 0.8 times the thickness T of the lid piece 41), cracking of the recess is likely to occur during punching, and if the linear recess 60 is too shallow (the depth D of the linear recess 60 is less than 0.4 times the thickness T of the lid piece 41), it becomes difficult for the user's thumb to grip it, so neither is desirable. Furthermore, if at least one of the depth D and width W of the linear recess 60 is too small, and the product of the two is too small (less than 0.2), the recess is more likely to crack during punching. If at least one of the depth D and width W of the linear recess 60 is too large, and the product of the two is too large (greater than 2.0), it becomes difficult to close the lid 21, so both are undesirable. In addition, since the width of the linear recess 60 is set to a specific value (5 mm) or less, there is an advantage that the user's thumb can easily grip the linear recess 60 when opening and closing the lid 21 on the storage box 20. If the width W of the linear recess 60 exceeds 5 mm, it becomes difficult to close the lid 21, which is undesirable.

[0039] Furthermore, in this embodiment, as shown in Figures 5 and 6, the cover piece 41 has a flat portion 41P formed between the grid line (front end portion 40F of the top plate 40) and the linear recess 60, and the narrowest dimension of the distance between the grid line 40F and the linear recess 60 in the flat portion 41P (hereinafter referred to as the "width of the flat portion 41P") R (see Figure 6) is set to 5 mm or more and 30 mm or less. In other words, in this embodiment, the linear recess 60 is arranged to satisfy the following equation (3). 5 ≤ R ≤ 30 …… (3)

[0040] When the linear recess 60 is arranged in this way, when the lid part 21 is opened and closed, the user's thumb is likely to catch on the linear recess 60, which has the advantage of making it easier to open the lid part 21. If the ruled line (the front end part 40F of the top plate 40) and the linear recess 60 are too close (the distance between the two is less than 5 mm), it is difficult to fold along the ruled line during the folding process (that is, it may fold at the linear recess 60), and the box is likely to bend, which is not preferable. On the other hand, if the ruled line and the linear recess 60 are too far apart (the distance between the two exceeds 30 mm), it becomes difficult to open the lid part 21, which is not preferable.

[0041] Also, as shown in FIG. 5, the linear recess 60 in the present embodiment extends left and right along the longitudinal direction from the central part in the longitudinal direction (left - right direction X) of the covering piece 41, and its length L 60 is set to be 10 mm or more and 100 mm or less and is 20% or less of the total length L 41 of the covering piece 41. That is, in the present embodiment, the linear recess 60 is configured to satisfy the following formulas (4) and (5). 10 ≤ L 60 ≤ 100 …… (4) L 60 ≤ 0.20 × L 41 …… (5)

[0042] When the linear recess 60 is configured in this way, when the lid part 21 is opened and closed, the user's thumb is likely to catch on the linear recess 60. If the linear recess 60 is too short (its length L 60 is less than 10 mm), it is difficult for the user's thumb to catch on the linear recess 60. If the linear recess 60 is too long (its length L 60 is 100 mm or exceeds 20% of the total length L 41 of the covering piece 41), it will induce the user to move the thumb out from the central part when opening the lid part 21 and pulling out the film F, and there is a risk that the film F and the saw blade at the end of the covering piece 41 will come into contact and cause a longitudinal crack in the film F. Therefore, neither is preferable.

[0043] Note that the depth D of the linear recess 60 can be measured using a laser microscope, and the width W and length L 60Furthermore, the width R of the flat portion 41P can be measured using a caliper (or other precision instrument).

[0044] In this embodiment, an example is shown in which a linear recess 60 is formed on the surface of the lid piece 41 of the lid portion 21 of the winding body storage box 10. However, instead of this linear recess 60, at least one linear protrusion 60' can be formed on the surface of the lid piece 41 (see Figure 7). In this case, as shown in Figure 7, it is preferable to set the height H of the linear protrusion 60' to 0.2 times or more and 0.4 times or less the thickness T of the lid piece 41, set the value obtained by multiplying the height H of the linear protrusion 60' by its width W' to 0.1 to 1.0, and set the width W' of the linear protrusion 60' to 5 mm or less. Furthermore, it is preferable to set the distance R' between the ruled line in the flat portion 41P and the linear protrusion 60' (width of the flat portion) to 5 mm or more and 30 mm or less, and to arrange the linear protrusion 60' so as to extend from the center of the longitudinal direction (left-right direction X) of the lid piece 41 to the left and right along the longitudinal direction, and set its length L 60 ′ is 10 mm or more and 100 mm or less, and the total length L of the cover piece 41 41 It is preferable to set it to 20% or less.

[0045] Furthermore, the storage section 20 only needs to have at least a front plate, a bottom plate, a rear plate, and side plates, and the lid section 21 only needs to have at least a top plate and a cover piece. The film F is not limited to food packaging wrap film, but may also be aluminum foil, cooking sheet, etc.

[0046] In the winding body storage box 10 according to the embodiment described above, at least one linear recess 60 is formed in the longitudinal center of the surface of the lid piece 41 of the lid 21, and the depth D of the linear recess 60 is set within a specific range (0.4 times or more and 0.8 times the thickness T of the lid piece 41), and the value obtained by multiplying the depth D of the linear recess 60 by its width W is set within a specific range (0.2 or more and 2.0 or less). As a result, when opening and closing the lid 21 of the storage box 20, the user's thumb can easily grip the linear recess 60, making it easier to open and close the lid 21, and it is also possible to suppress cracking of the recess during punching.

[0047] Furthermore, in the winding body storage box 10 according to the embodiment described above, the linear recess 60 is formed parallel to the scribed line that forms the boundary between the top plate 40 and the cover piece 41 of the lid 21 (the front end portion 40F of the top plate 40), which has the advantage that the user's thumb can easily grip the linear recess 60 when opening and closing the lid 21.

[0048] Furthermore, in the winding body storage box 10 according to the embodiment described above, a flat portion 41P of the cover piece 41 is formed between the score line (front end portion 40F of the top plate 40) and the linear recess 60, and the distance R between these score line and the linear recess 60 is set within a specific range (5 mm or more and 30 mm or less). This has the advantage that when opening and closing the lid 21, the user's thumb can easily grip the linear recess 60, making it easier to open the lid 21.

[0049] Furthermore, in the winding body storage box 10 according to the embodiment described above, the length L of the linear recess 60 is 60 within a specific range (10 mm to 100 mm and the total length L of the cover piece 41) 41 Since it is set to 20% or less, there is an advantage that the user's thumb can easily grip the linear recess 60 when opening and closing the lid 21.

[0050] Furthermore, in the winding body storage box 10 according to the embodiment described above, the width W of the linear recess 60 is set to a specific value (5 mm) or less, which has the advantage that it is easier for the user's thumb to grip the linear recess 60 when opening and closing the lid 21 of the storage box 20. [Examples]

[0051] Next, examples and comparative examples of the present invention will be described using Table 1.

[0052] [Table 1]

[0053] [Load measurement method] The load (N) when opening and closing the lid of the winding material storage box in each example and comparative example was measured using an eraser manufactured by Tombow Pencil Co., Ltd. (MONO PE-01A: 17mm wide x 43mm long x 11mm thick) and a force gauge manufactured by Imada Co., Ltd. The eraser was completely cleaned of any talc adhering to its surface before measurement. When measuring the load when opening the lid, the lid was completely closed to the storage compartment of the winding material storage box, with the back plate facing downwards (lid cover facing upwards). The eraser, acting as a substitute for the user's thumb, was placed at an angle of approximately 45° to the surface of the lid cover. The lid was slowly opened while applying a pulling force to the eraser, and the load (N) at that time was measured using the force gauge. This measurement was repeated five times, and the smallest value was recorded. To measure the load when the lid is closed, the lid of the winding material storage box was opened relative to the storage area, with the rear plate facing downwards (the cover piece facing upwards). An eraser was placed at an angle of approximately 45° to the surface of the cover piece, and the lid was slowly closed while applying a pulling force to the eraser. The load (N) at this time was measured using a force gauge. This measurement was repeated five times, and the smallest value was recorded.

[0054] [Evaluation Method] Based on the above measurements, a "○" was given if the load when the lid was open and closed was less than "3.0(N)" and no creasing occurred during the fabrication of the winding material storage box (each example). On the other hand, a "×" was given if, based on the above measurements, the load when the lid was open or closed was "3.0(N)" or greater, or if creasing occurred during the fabrication of the winding material storage box (each comparative example). Before evaluating each example and comparative example, the depth of the linear recesses (height of the linear protrusions) was measured using a Keyence VK-X1000 laser microscope, and other dimensions were measured using a Shinwa Sokutei Co., Ltd. digital caliper.

[0055] <Example 1> A rolled-up body storage box 10 is made using coated cardboard with a thickness of T:0.72 mm as the base material, and on the surface of the cover piece 41 there is a mark with a depth D:0.3 mm, a width W:2 mm (D×W:0.6), and a length L 60A linear recess 60 with a depth of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the grid line (front end 40F of the top plate 40) and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T (0.72 mm) of the cover piece 41 was 0.42. Also, the length L in the longitudinal direction of the cover piece 41 was... 41 The length is 316 mm, and the length L of the linear recess 60 relative to this is 316 mm. 60 The proportion accounted for was 9.5%. In Example 1, as shown in Table 1, the load when the lid was open was 2.6N and the load when the lid was closed was 2.5N, and no creasing occurred during manufacturing (evaluation: ○).

[0056] <Example 2> A winding body containment box 10 was fabricated using the same material as in Example 1, and a depth D: 0.5 mm, width W: 2 mm (D × W: 1), and length L was applied to the surface of its cover piece 41. 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.69. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion of this was 9.5%. In Example 2, as shown in Table 1, the load when the lid was open was 1.7N and the load when the lid was closed was 2.0N, and no creasing occurred during manufacturing (evaluation: ○).

[0057] <Example 3> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.5 mm, width W: 3 mm (D × W: 1.5), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.69. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60The proportion accounted for was 9.5%. In Example 3, as shown in Table 1, the load when the lid was open was 1.9N and the load when the lid was closed was 2.5N, and no creasing occurred during manufacturing (evaluation: ○).

[0058] <Example 4> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.3 mm, a width W: 1 mm (D × W: 0.3), and a length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.42. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for was 9.5%. In Example 4, as shown in Table 1, the load when the lid was open was 2.5N and the load when the lid was closed was 2.1N, and no creasing occurred during manufacturing (evaluation: ○).

[0059] <Example 5> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.3 mm, width W: 2 mm (D × W: 0.6), and length L 60 A linear recess 60 measuring 100 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.42. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for was 31.6%. In Example 5, as shown in Table 1, the load when the lid was open was 2.5N and the load when the lid was closed was 2.4N, and no creasing occurred during manufacturing (evaluation: ○).

[0060] <Example 6> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.3 mm, width W: 2 mm (D × W: 0.6), and length L 60A linear recess 60 measuring 150 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.42. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for by 47.5%. In Example 6, as shown in Table 1, the load when the lid was open was 2.5N and the load when the lid was closed was 2.6N, and no creasing occurred during manufacturing (evaluation: ○).

[0061] <Example 7> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.3 mm, width W: 2 mm (D × W: 0.6), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 10 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.42. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion of this was 9.5%. In Example 7, as shown in Table 1, the load when the lid was open was 2.6N and the load when the lid was closed was 2.5N, and no creasing occurred during manufacturing (evaluation: ○).

[0062] <Example 8> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.3 mm, width W: 2 mm (D × W: 0.6), and length L 60 A linear recess 60 with a depth of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 30 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.42. Also, the length L in the longitudinal direction of the cover piece 41 was... 41 Length L of the linear recess 60 relative to the length L 60The proportion of this was 9.5%. In Example 8, as shown in Table 1, the load when the lid was open was 2.9N and the load when the lid was closed was 2.4N, and no creasing occurred during manufacturing (evaluation: ○).

[0063] <Example 9> A rolled-up body storage box 10 is made using coated cardboard with a thickness of T:0.50 mm as the base material, and on the surface of the cover piece 41 there is a mark with a depth D:0.2 mm, a width W:2 mm (D×W:0.4), and a length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.40. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion of this was 9.5%. In Example 9, as shown in Table 1, the load when the lid was open was 2.4N and the load when the lid was closed was 2.4N, and no creasing occurred during manufacturing (evaluation: ○).

[0064] <Example 10> A winding body containment box 10 was fabricated using the same material as in Example 9, and a lid piece 41 was made on its surface with a depth D: 0.4 mm, width W: 2 mm (D × W: 0.8), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.80. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion of this was 9.5%. In Example 10, as shown in Table 1, the load when the lid was open was 2.0N and the load when the lid was closed was 2.1N, and no creasing occurred during manufacturing (evaluation: ○).

[0065] <Example 11> A winding body containment box 10 was fabricated using the same material as in Example 9, and a lid piece 41 was made on its surface with a depth D: 0.4 mm, a width W: 4 mm (D × W: 1.6), and a length L60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.80. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion of this was 9.5%. In Example 11, as shown in Table 1, the load when the lid was open was 2.1N and the load when the lid was closed was 2.8N, and no creasing occurred during manufacturing (evaluation: ○).

[0066] <Example 12> A winding body containment box 10 was fabricated using the same material as in Example 9, and a lid piece 41 was made on its surface with a depth D: 0.2 mm, width W: 1 mm (D × W: 0.2), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.40. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for was 9.5%. In Example 12, as shown in Table 1, the load when the lid was open was 2.5N and the load when the lid was closed was 1.9N, and no creasing occurred during manufacturing (evaluation: ○).

[0067] <Example 13> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.2 mm, width W': 2 mm (H × W': 0.4), and length L was made on the surface of the cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.28. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60The proportion of ′ was 9.5%. In Example 13, as shown in Table 1, the load when the lid was open was 2.1N and the load when the lid was closed was 2.6N, and no creasing occurred during manufacturing (evaluation: ○).

[0068] <Example 14> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.1 mm, width W': 2 mm (H × W': 0.2), and length L was made on the surface of the cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.14. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60 The proportion of ′ was 9.5%. In Example 14, as shown in Table 1, the load when the lid was open was 2.6N and the load when the lid was closed was 2.4N, and no creasing occurred during manufacturing (evaluation: ○).

[0069] <Example 15> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.2 mm, width W': 4 mm (H × W': 0.8), and length L was made on the surface of its cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.28. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60 The proportion of ′ was 9.5%. In Example 15, as shown in Table 1, the load when the lid was open was 2.4N and the load when the lid was closed was 2.7N, and no creasing occurred during manufacturing (evaluation: ○).

[0070] <Comparative Example 1> A winding body storage box 10 was fabricated using the same material as in Example 1, and the load during opening and closing of the lid was measured without forming linear recesses 60 on the surface of the lid piece 41. In Comparative Example 1, since linear recesses 60 were not formed, no creasing occurred during fabrication, but as shown in Table 1, the load when the lid was open was 3.5N and the load when the lid was closed was 3.8N (Evaluation: ×).

[0071] <Comparative Example 2> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.2 mm, width W: 2 mm (D × W: 0.4), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.28. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for was 9.5%. In Comparative Example 2, although no creasing occurred during manufacturing, as shown in Table 1, the load when the lid was open was 3.0N and the load when the lid was closed was 3.0N (Evaluation: ○).

[0072] <Comparative Example 3> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.7 mm, width W: 2 mm (D × W: 1.4), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.97. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for by 9.5%. In Comparative Example 3, as shown in Table 1, the load when the lid was open was 1.5N and the load when the lid was closed was 1.8N, but creasing occurred during manufacturing (evaluation: ×).

[0073] <Comparative Example 4> A winding body containment box 10 was fabricated using the same material as in Example 1, and a lid piece 41 was made on its surface with a depth D: 0.5 mm, width W: 5 mm (D × W: 2.5), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.69. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for was 9.5%. In Comparative Example 4, no creasing occurred during manufacturing, and as shown in Table 1, the load when the lid was open was 2.0N, but the load when the lid was closed was 3.1N (Evaluation: ×).

[0074] <Comparative Example 5> A winding body containment box 10 was fabricated using the same material as in Example 9, and a lid piece 41 was made on its surface with a depth D: 0.4 mm, width W: 6 mm (D × W: 2.4), and length L 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.80. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L 60 The proportion accounted for by 9.5%. In Comparative Example 5, no creasing occurred during manufacturing, and as shown in Table 1, the load when the lid was open was 2.1N, but the load when the lid was closed was 3.1N (Evaluation: ×).

[0075] <Comparative Example 6> A winding body containment box 10 was fabricated using the same material as in Example 9, and a depth D: 0.2 mm, width W: 0.5 mm (D × W: 0.1), and length L was applied to the surface of its cover piece 41. 60 A linear recess 60 with a length of 30 mm was formed. The linear recess 60 was positioned such that the distance R between the score line and the linear recess 60 was 5 mm. The value obtained by dividing the depth D of the linear recess 60 by the thickness T of the cover piece 41 was 0.40. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear recess 60 relative to the length L60 The proportion accounted for was 9.5%. In Comparative Example 6, as shown in Table 1, the load when the lid was open was 2.6N and the load when the lid was closed was 2.0N, but creasing occurred during manufacturing (evaluation: ×).

[0076] <Comparative Example 7> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.3 mm, width W': 2 mm (H × W': 0.6), and length L was made on the surface of its cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.4. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60 The proportion of ' was 9.5%. In Comparative Example 7, as shown in Table 1, the load when the lid was open was 2.4N and the load when the lid was closed was 2.7N, but creasing occurred during manufacturing (evaluation: ×).

[0077] <Comparative Example 8> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.2 mm, width W': 6 mm (H × W': 1.2), and length L was made on the surface of its cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.28. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60 The proportion of ' was 9.5%. In Comparative Example 8, as shown in Table 1, no creasing occurred during manufacturing, and the load when the lid was closed was 2.6N, but the load when the lid was open was 3.1N (Evaluation: ×).

[0078] <Comparative Example 9> A winding body containment box 10 was fabricated using the same material as in Example 1, and a mark with a height H: 0.1 mm, a width W': 1 mm (H × W': 0.1), and a length L was made on the surface of its cover piece 41. 60 A linear projection 60' with a length of 30 mm was formed. The linear projection 60' was positioned such that the distance R' between the score line and the linear projection 60' was 5 mm. The value obtained by dividing the height H of the linear projection 60' by the thickness T of the cover piece 41 was 0.28. Furthermore, the length L in the longitudinal direction of the cover piece 41 was also determined. 41 Length L of the linear protrusion 60′ relative to the linear protrusion 60 The proportion of ′ was 9.5%. In Comparative Example 9, no creasing occurred during manufacturing, but as shown in Table 1, the load when the lid was open was 3.3N and the load when the lid was closed was 3.6N (Evaluation: ×).

[0079] The present invention is not limited to the embodiments described above, and any modifications made to these embodiments by those skilled in the art are also included within the scope of the present invention, as long as they retain the features of the present invention. In other words, the elements of the embodiments and their arrangement, materials, conditions, shapes, sizes, etc., are not limited to those exemplified and can be modified as appropriate. Furthermore, the elements of the embodiments can be combined to the extent that it is technically possible, and any combinations thereof are also included within the scope of the present invention, as long as they retain the features of the present invention. [Industrial applicability]

[0080] This invention is useful for facilitating the opening and closing of the lid of a winding material storage box. [Explanation of Symbols]

[0081] 1... Retractable body housing device 10...Rotating body containment box 11... Coiled body 20...Detention Unit 20b…Internal space 20a…Aperture 21...Lid part 30... Front board 31...Bottom plate 32…Rear plate 32U... Upper end of the rear panel 34... Side panel 40... Tabletop 40F...Front edge of the top panel (grid lines) 41...cover piece 60…Linear recess 60′…Linear convex part D... Depth of linear recess F... Film H...Height of the linear protrusion L 41 ...Total length of the cover piece (length in the longitudinal direction) L 60 ...Length of the linear recess R... Distance between the ruled line and the linear recess (width of the flat area) T... Covering plate thickness W...Width of linear recess W'...Width of the linear protrusion

Claims

1. A winding body storage box is configured to house a winding body of film in the internal space, comprising: a storage section having an internal space and an opening formed by a front plate, a bottom plate, a rear plate, and side plates; and a lid attached to the storage section to open and close the opening, having a top plate connected to the upper end of the rear plate and a cover piece connected to the front end of the top plate, At least one linear recess is formed approximately in the longitudinal center of the surface of the cover piece. The depth of the linear recess is 0.4 times or more and 0.8 times or less the thickness of the cover piece. A coiled material storage box in which the product of the depth and width of the linear recess is 0.2 or more and 2.0 or less.

2. The winding box according to claim 1, wherein the linear recess is formed parallel to the grid lines forming the boundary between the top plate and the cover piece.

3. The cover piece has a flat portion formed between the grid line and the linear recess. The winding body storage box according to claim 2, wherein the distance between the ruled line and the linear recess is 5 mm or more and 30 mm or less.

4. The coiled body storage box according to claim 1, wherein the length of the linear recess is 10 mm or more and 100 mm or less, and is 20% or less of the total length of the cover piece.

5. The winding body housing box according to claim 1, wherein the width of the linear recess is 5 mm or less.

6. A winding body storage box is configured to house a winding body of film in the internal space, comprising: a storage section having an internal space and an opening formed by a front plate, a bottom plate, a rear plate, and side plates; and a lid attached to the storage section to open and close the opening, having a top plate connected to the upper end of the rear plate and a cover piece connected to the front end of the top plate, At least one linear protrusion is formed approximately in the longitudinal center of the surface of the cover piece. The height of the linear protrusion is 0.2 times or more and 0.4 times or less the thickness of the cover piece. A coiled material storage box in which the product of the height and width of the linear protrusion is 0.1 or more and 1.0 or less.

7. A winding body storage device comprising a winding body storage box according to any one of claims 1 to 6, wherein a winding body of film is stored in the winding body storage box.

8. The winding body housing device according to claim 7, wherein the film is a polyvinylidene chloride film.

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