JP2023156977A - Package of light control sheet and manufacturing method of package of the same - Google Patents

Abstract

To provide a package of a light control sheet capable of preventing a corner portion of the light control sheet from being bent when the light control sheet is unwound from a cylindrical member, and to provide a manufacturing method of the package.SOLUTION: In a package in which a light control sheet 11 is packaged in a state of being wound around a cylindrical member 31, the cylindrical member 31 has two cylindrical end parts 31a which are exposed from the light control sheet 11 wound around the cylindrical member 31 and project on both sides in the axial direction X of the cylindrical member 31. In the light control sheet 11, a winding start part 21 which is a portion coming into contact with an outer peripheral surface 31b of the cylindrical member 31 and starting to be wound around the cylindrical member 31 has one short side 14 of the light control sheet 11, and a portion-to-be-fixed 24 located apart from the short side 14 in each of two long sides 15 linked to the short side 14. The short side 14 is fixed to the outer peripheral surface 31b of the cylindrical member 31 by a first easily releasable tape 16a, and each of two portions-to-be-fixed 24 is fixed to the outer peripheral surface 31b of the cylindrical end part 31a by a second easily releasable tape 16b.SELECTED DRAWING: Figure 3

Description

The present disclosure relates to a light control sheet package and a method for manufacturing the package.

A plastic film take-up roll is a roll in which a plastic film is wound around a cylindrical core. The starting point of the wrap in the plastic film is attached to the core by means of a single-sided adhesive tape. As a result, the starting point, which is the part where the plastic film starts to be wound, is fixed to the cylindrical core (see, for example, Patent Document 1).

JP 2018-76162 Publication

The light control sheet has a rectangular shape like the plastic film described above. After the winding start portion, which is the starting point of winding, is fixed to a cylindrical tube member, the light control sheet is wrapped and packed around the tube member. During the unpacking process, when the light control sheet is gradually unwound from the cylindrical member, the outer light control sheet, which is holding the winding start part toward the cylinder member, will be pressed against the innermost light control sheet. Leave the club. At this time, the light control sheet wrapped around the cylindrical member floats up so as to return to a planar shape along the tangential direction of the cylindrical member. The restoring force that returns the light control sheet to a flat shape acts on the light control sheet so that the periphery of the winding start portion is lifted from the outer peripheral surface of the cylindrical member.

In this case, since the light control sheet includes a liquid crystal composition sealed between two transparent electrode films, it has greater bending rigidity than a single plastic film. On the other hand, the winding start portion of the light control sheet continues to be fixed to the outer peripheral surface of the tube member until the entire light control sheet is unwound from the tube member. On the other hand, in the light control sheet, the vicinity of the corner, which is the end of the side including the winding start part, rises due to the above-mentioned restoring force. Therefore, there is a risk that the large restoring force that lifts the light control sheet from the outer circumferential surface of the cylindrical member may excessively bend the corners of the light control sheet.

A package of light control sheets that solves the above problems is a package in which a light control sheet including a liquid crystal composition sealed between two transparent electrode films is wrapped around a cylindrical member. , the cylindrical member includes two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member on both sides in the axial direction of the cylindrical member, and the light control sheet extends around the outer periphery of the cylindrical member. It includes a winding start part that is a part that starts winding around the cylindrical member in contact with a surface, and the winding start part is formed on one short side of the light control sheet and on each of two long sides connected to the short side. , a fixed part located away from the short side, the short side is fixed to the outer circumferential surface of the cylindrical member by a first easily peelable tape, and each of the two fixed parts is fixed to a second fixed part. It is fixed to the outer peripheral surface of the tube end with an easily peelable tape.

A method of manufacturing a package for solving the above problem is such that two cylindrical ends are formed on both sides of the cylindrical member in the axial direction, and are exposed from the light control sheet wrapped around the cylindrical member. A method for producing a package, the method comprising: wrapping the light control sheet containing a liquid crystal composition encapsulated between two transparent electrode films around the cylindrical member, the light control sheet covering the outer peripheral surface of the cylindrical member. a winding start part that is a part that starts winding around the cylindrical member in contact with the cylindrical member, and the winding start part includes one short side of the light control sheet and two long sides connected to the short side, respectively. a fixed part located away from the short side, the short side is fixed to the outer peripheral surface of the cylindrical member with a first easily peelable tape, and the two fixed parts are fixed with a second easily peelable tape. and fixing each to the outer circumferential surface of the cylinder end.

According to each of the above configurations, the short side at the winding start part of the light control sheet and the two fixed parts are fixed to the outer peripheral surface of the cylindrical member, so that when the light control sheet is unwound from the cylinder member, , the burden caused by the force that causes the winding start portion to rise from the outer peripheral surface of the cylindrical member is dispersed to areas other than the short sides. Therefore, when the light control sheet is unwound from the cylindrical member, it is possible to suppress the corners of the light control sheet from being bent due to the force that causes the winding start portion to rise from the outer peripheral surface of the cylindrical member.

In the above configuration, a point of the fixed portion farthest from the short side is a fixing end point, and a central angle formed by the short side and the fixing end point with respect to the center of the cylindrical member is a first point. The first angle has a magnitude of 69 degrees or less.

According to the above configuration, when the magnitude of the first angle that determines the fixing end point becomes smaller, the force for turning up the corner of the short side becomes smaller than when the first angle is large. Since the force for turning up the corners of the short sides is reduced, the force for lifting the corners of the short sides is also reduced. When the magnitude of the first angle is 69 degrees or less, the force that lifts up the corners of the short sides is reduced, so that the corners of the light control sheet are less likely to break. That is, when the magnitude of the first angle is 69 degrees or less, the corner portion of the light control sheet can be further prevented from folding while firmly fixing the winding start portion.

In the above configuration, a point of the fixed portion farthest from the short side is a fixing end point, and a central angle formed by the short side and the fixing end point with respect to the center of the cylindrical member is a first point. The first angle has a magnitude of 46 degrees or more.

According to the above configuration, when the magnitude of the first angle that determines the fixing end point increases, the distance between the short side and the fixing end point increases when the light control sheet is unwound from the cylindrical member. This stabilizes the fixation to the cylindrical member at the winding start portion. When the magnitude of the first angle is 46 degrees or more, the frequency at which the light control sheet and the cylindrical member are not stably fixed at the winding start portion is reduced. That is, when the magnitude of the first angle is 46 degrees or more, the winding start portion can be fixed more firmly.

In the above configuration, a point of the fixed part that is closest to the short side is a fixing start point, and a central angle formed by the short side and the fixing start point with respect to the center of the cylindrical member is a second point. The second angle has a magnitude of 23 degrees or more.

According to the above configuration, when the magnitude of the second angle that determines the fixing start point becomes large, the force for turning up the corner of the short side becomes smaller than when the second angle is small. Since the force for turning up the corners of the short sides is reduced, the force for lifting the corners of the short sides is also reduced. When the magnitude of the second angle is 23 degrees or more, the force that lifts up the corners of the short sides is reduced, so that the corners of the light control sheet are less likely to break. That is, when the magnitude of the second angle is 23 degrees or more, it is possible to further suppress the bending of the corners of the light control sheet while firmly fixing the winding start portion.

In the above configuration, the first transparent electrode film, which is one of the transparent electrode films, includes a first transparent electrode layer, and the light control sheet further includes a flexible wiring board connected to the first transparent electrode layer. The flexible wiring board includes an extending portion extending from the short side of the light control sheet toward the outside of the first transparent electrode film, and the extending portion is connected to the cylindrical member and the light control sheet. A third easily peelable tape is fixed to at least one of the sheets.

According to the above configuration, the position of the flexible wiring board becomes difficult to shift with respect to the cylindrical member or the light control sheet. Therefore, it is possible to suppress the application of force to the joint portion between the first transparent electrode film and the flexible wiring board.

In the above configuration, the package includes a first fixing member fitted into one of the tube ends, and a second fixing member fitted into the other tube end, and the first fixing member and the first fixing member are fitted into the other tube end. 2 fixing members position the light control sheet with respect to the cylindrical member in the axial direction of the cylindrical member.

According to the above configuration, the first fixing member and the second fixing member position the dimming sheet with respect to the tubular member in the axial direction of the tubular member, so that the dimming that is not fixed to the outer circumferential surface of the tubular member is controlled. Also in the sheet portion, the light control sheet is prevented from moving in the axial direction of the cylindrical member. Therefore, it is possible to prevent the outer surface of the n-th turn of the light control sheet from rubbing against the inner surface of the n+1-th turn of the light control sheet.

In the above configuration, the packaging body includes a packaging box in which the light control sheet wound around the cylindrical member is packed, and one end of the cylindrical member in the axial direction of the cylindrical member with respect to the packaging box. It includes a third fixing member for fixing, and a fourth fixing member for fixing the other end of the cylindrical member in the axial direction of the cylindrical member to the packaging box.

According to the above configuration, the third fixing member and the fourth fixing member position the tubular member with respect to the packaging box in the axial direction of the tubular member, so that the light control sheet wrapped around the tubular member can be To suppress movement of the cylindrical member in the axial direction within the packaging box. Therefore, it is possible to suppress the light control sheet from shifting in the axial direction of the cylindrical member with respect to the packaging box.

In the above configuration, the first transparent electrode film, which is one of the transparent electrode films, includes a first transparent electrode layer, and the light control sheet has a portion connected to the first transparent electrode layer that is connected to the axis of the cylindrical member. a flexible wiring board extending in the direction, the flexible wiring board being an extending part extending in the circumferential direction of the cylindrical member from a portion connected to the first transparent electrode layer; A part of the extension part may be fixed to at least one of the cylindrical member and the light control sheet with an easily peelable tape.

According to the above configuration, the extending portion of the flexible wiring board is arranged to extend in the circumferential direction of the cylindrical member. Moreover, the extending portion of the flexible wiring board is connected to the first transparent electrode layer along the axial direction of the cylindrical member. Therefore, compared to the case where the extending portion of the flexible wiring board is arranged to extend in the axial direction of the cylindrical member, the shape of the flexible wiring board is fixed and easily follows the outer peripheral surface of the cylindrical member. Flexible wiring board does not easily lift up. Since the shape of the flexible wiring board easily follows the outer circumferential surface of the cylindrical member, stress that causes the flexible wiring board to separate from the first transparent electrode layer is applied to the first transparent electrode layer and the flexible wiring board. It is possible to suppress the effect on the connecting part. As a result, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or the light control sheet is not fixed to the outer peripheral surface of the cylindrical member, the flexible wiring board is Peeling from the transparent electrode layer can be suppressed. Further, it is possible to suppress an increase in electrical resistance between the flexible wiring board and the first transparent electrode layer.

In the above configuration, a packaging box in which the light control sheet wound around the cylindrical member is packed, a first fixing member fitted into one of the cylindrical ends, and a second fixing member fitted into the other cylindrical end. a fixing member, the first fixing member and the second fixing member position the light control sheet with respect to the cylindrical member in the axial direction of the cylindrical member, and the light control sheet is positioned between the inner surface of the packaging box and the light control sheet. A flap forming the packaging box and forming a gap with the light sheet may be disposed on an outer surface of the packaging box.

In the method for manufacturing a package, a first fixing member is fitted into one of the cylindrical ends of the cylindrical member wrapped with the light control sheet, and a second fixing member is fitted into the other cylindrical end. positioning the light control sheet with respect to the cylindrical member in the axial direction of the cylindrical member; By arranging the first fixing member and the second fixing member, a gap is formed between the bottom wall of the packaging box in the blank and the light control sheet, and a peripheral wall surrounding the cylindrical member is The method may further include assembling the packaging box by folding the blank up from a bottom wall of the blank.

According to each of the above configurations, the flaps constituting the packaging box are arranged on the outer surface of the packaging box, so a step corresponding to the thickness of the flap is formed on the outer surface of the packaging box, and is not formed on the inner surface of the packaging box. Not done. Therefore, the light control sheet is housed in the packaging box such that the outer surface of the light control sheet faces the flat surface that is the inner surface of the packaging box. As a result, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or not, the outer surface of the light control sheet comes into contact with the step of the flap. can be suppressed. In addition, damage to the light control sheet due to contact between the light control sheet and the step can be suppressed.

In the above configuration, the light control sheet may include a two-dimensional code marked with a laser.
The above configuration includes a packaging box, a cylindrical member housed in the packaging box, and two transparent electrode films and a liquid crystal composition sealed between the transparent electrode films, and the liquid crystal composition is arranged in a circumferential direction of the cylindrical member. A light control sheet package comprising a light control sheet that can be wrapped around one turn or more, wherein a portion of the light control sheet that is in contact with the outer circumferential surface of the cylindrical member is a first turn sheet portion; The first round sheet portion includes two or more fixed parts arranged in the circumferential direction of the cylindrical member on the outer surface of the light control sheet, and each of the fixed parts is fixed to the cylindrical member with an easily peelable tape. The cylindrical member is fixed to an outer peripheral surface, and includes cylindrical ends exposed from the light control sheet on both sides in the axial direction of the cylindrical member, and the outer peripheral surface of each of the cylindrical ends and the inner surface of the packaging box are connected to each other. a pair of light control sheets located in between, which separate the light control sheet wrapped around the cylinder member from the inner surface of the packaging box and position the light control sheet with respect to the cylinder member in the axial direction of the cylinder member; It further includes a position regulating member.

According to the above configuration, the unwinding of the sheet portion in the first round is suppressed by fixing at multiple locations with the easily peelable tape, and the light control sheet is separated from the inner surface of the packaging box while the unwinding is suppressed. Position regulating members are arranged at both ends in the axial direction. The position regulating members located at both ends in the axial direction prevent the light control sheet from shifting in the axial direction with respect to the cylinder member even in the portion of the light control sheet that is not fixed to the outer peripheral surface of the cylinder member. Therefore, it is possible to suppress the outer surface of the outermost light control sheet from rubbing, and the n-th light control sheet and the n+1th light control sheet from rubbing against each other.

According to the present disclosure, when the light control sheet is unwound from the cylindrical member, the winding start portion is lifted up from the outer circumferential surface of the cylindrical member by a force that causes the light control sheet to move at the winding start portion fixed to the cylindrical member. It is possible to prevent the corners from breaking.

FIG. 1 is a plan view showing the planar structure of the light control sheet. FIG. 2 is a cross-sectional view showing the cross-sectional structure taken along line 2-2 in FIG. FIG. 3 is a perspective view showing a method of fixing the light control sheet when starting to wind the light control sheet. FIG. 4 is a perspective view showing a method of fixing the light control sheet when winding the light control sheet is finished. FIG. 5 is a schematic diagram showing the bent shape of the light control sheet when the light control sheet is unwound. FIG. 6 is a schematic diagram showing the bent shape of the light control sheet when the first angle is large. FIG. 7 is a schematic diagram showing the bent shape of the light control sheet when the second angle is small. FIG. 8 is a perspective view showing how the light control sheet is positioned in the axial direction. FIG. 9 is a perspective view showing how the cylindrical member is positioned in the axial direction. FIG. 10 is a cross-sectional view showing the cross-sectional structure taken along line 10-10 in FIG. FIG. 11 is a process diagram showing a method for manufacturing a package in a modified example. FIG. 12 is a process diagram showing a method for manufacturing a package in a modified example.

Each structure will be explained in the following order: a light control sheet as a packaged object, a rolled body in which one light control sheet is wound around a cylindrical member, and a packaged body of light control sheets when the rolled body is transported. do.
[Configuration of light control sheet]
The light control sheet 11 includes a first surface and a second surface opposite to the first surface. The first surface and the second surface each extend along the direction in which the light control sheet 11 extends. FIG. 1 shows the planar structure of the light control sheet 11 as seen from a viewpoint facing the first surface of the light control sheet 11. As shown in FIG.

As shown in FIG. 1, the light control sheet 11 has a rectangular shape. The light control sheet 11 has a pair of opposing short sides 14 and a pair of opposing long sides 15. The light control sheet 11 includes a pair of flexible wiring boards 12. The pair of flexible wiring boards 12 are connected to the outer peripheral portion 13 of the light control sheet 11 and lined up along one short side 14 of the light control sheet 11 .

As shown in FIG. 2, the light control sheet 11 includes a first transparent electrode film 11a, a second transparent electrode film 11d, a light control layer 11i containing a liquid crystal composition 11g, and a sealing part 11h. . A liquid crystal composition 11g is enclosed between two transparent electrode films 11a and 11d. The light control layer 11i is sandwiched between the first transparent electrode film 11a and the second transparent electrode film 11d. The sealing portion 11h seals the outer peripheral portion 13, which is the peripheral portion between the first transparent electrode film 11a and the second transparent electrode film 11d.

The first transparent electrode film 11a includes a first transparent base material 11b and a first transparent electrode layer 11c. The first transparent base material 11b supports the first transparent electrode layer 11c. The second transparent electrode film 11d includes a second transparent base material 11e and a second transparent electrode layer 11f. The second transparent base material 11e supports the second transparent electrode layer 11f.

The flexible wiring board 12 extends from the short side 14 of the first transparent electrode film 11a and the second transparent electrode film 11d toward the outside of the first transparent electrode film 11a and the second transparent electrode film 11d. A portion 12a is provided. One of the pair of flexible wiring boards 12 is electrically connected to the first transparent electrode layer 11c. The other of the pair of flexible wiring boards 12 is electrically connected to the second transparent electrode layer 11f.

The light control layer 11i includes a transparent polymer layer and a liquid crystal composition 11g. The transparent polymer layer defines voids to be filled with 11 g of liquid crystal composition. The voids defined by the transparent polymer layer have a size and quantity that scatter visible light entering the light control layer 11i due to the difference in refractive index between the transparent polymer layer and the liquid crystal composition, thereby making the light control layer 11i cloudy. Equipped with The liquid crystal composition 11g is filled into the voids in the transparent polymer layer.

The holding type of the liquid crystal composition is any one of a polymer dispersion type, a polymer network type, and a capsule type. The polymer dispersed type has a large number of isolated voids in a transparent polymer layer, and holds a liquid crystal composition in the voids dispersed in the polymer layer. The polymer network type has a transparent polymer network having a three-dimensional network shape, and holds the liquid crystal composition in the interconnected network voids. A polymer network is an example of a transparent polymer layer. The capsule type holds a capsule-shaped liquid crystal composition in a transparent polymer layer. In addition, the liquid crystal composition may contain, in addition to the liquid crystal compound, a monomer for forming a transparent polymer layer, a dichroic dye, a plasticizer, and the like. The light control layer 11i may contain a spacer for maintaining the thickness of the light control layer 11i within a certain range.

The pair of flexible wiring boards 12 applies a driving voltage to the light control layer 11i sandwiched between the first transparent electrode film 11a and the second transparent electrode film 11d.
For example, in the normal type light control sheet 11, when no electric field is formed between the transparent electrode layers 11c and 11f, the long axis direction of the liquid crystal compound is not aligned so that the light incident on the light control sheet 11 is scattered. They are arranged in a regular manner, thereby making the light control sheet 11 opaque. When an electric field is formed between the transparent electrode layers 11c and 11f, the long axis direction of the liquid crystal compound follows the electric field so that the light incident on the light control sheet 11 is transmitted. Make it transparent.

For example, in the reverse type light control sheet 11, when no electric field is formed between the transparent electrode layers 11c and 11f, the long axis direction of the liquid crystal compound follows the regulating force of the alignment layer, and as a result, The light control sheet 11 is made transparent. When an electric field is formed in the transparent electrode layers 11c and 11f, the long axis direction of the liquid crystal compound follows the electric field so that the light incident on the light control sheet 11 is scattered, thereby making the light control sheet 11 opaque. do.

In this way, the light control sheet 11 reversibly switches from transparent to opaque. The first surface of the light control sheet 11 may be attached to a transparent body such as a window glass, a partition, a showcase, or the like. Further, the first surface of the light control sheet 11 is attached to the first transparent plate, and the second surface of the light control sheet 11 is attached to the second transparent plate. It may be sandwiched between two transparent plates. Alternatively, the light control sheet 11 may be used as a projection screen without being attached to a transparent body.

[Configuration of wound body]
As shown in FIG. 3, the wound body 35 includes a cylindrical tube member 31 extending in the axial direction X and a light control sheet 11. In this embodiment, the cylindrical member 31 extends in the axial direction X and has a through hole 32 that penetrates in the axial direction X. Note that as long as the outer periphery of the cylindrical member 31 has a cylindrical shape, the presence or absence of the through hole 32 is not limited. Therefore, the shape of the cylindrical member 31 may be cylindrical. However, since the weight of the cylindrical member 31 is reduced by the through-hole 32, it is preferable that the cylindrical member 31 has the through-hole 32.

The cylindrical member 31 is preferably made of a material that does not have a hard surface in order to prevent the surface of the light control sheet 11 from being damaged. For example, a paper tube is used for the cylinder member 31. A paper tube is a tube or tube made of paper, and is mainly used as a shaft for winding paper, fibers, films, etc. Since the light control sheet 11 has high bending rigidity, a paper tube with a large diameter, for example, a paper tube with a diameter of 10 inches is used.

The light control sheet 11 includes a winding start portion 21 that is a portion that contacts the outer circumferential surface 31b of the tube member 31 and starts winding around the tube member 31. The winding start portion 21 includes one short side 14 of the light control sheet 11 .

The short side 14 of the winding start portion 21 is fixed to the outer circumferential surface 31b of the cylindrical member 31 by the first easily peelable tape 16a. The short side 14 of the winding start portion 21 is located approximately at the center of the cylindrical member 31 in the axial direction X, and the length direction of the short side 14 is in the same direction as the axial direction X of the cylindrical member 31. , fixed. Thereby, in the cylinder member 31, the central part where the light control sheet 11 is wound in the circumferential direction Y of the cylinder member 31, and the central part where the light control sheet 11 is wound around the cylinder member 31, Two cylindrical end portions 31a exposed on both sides of the member 31 in the axial direction X are formed. That is, the cylindrical member 31 has a central part around which the light control sheet 11 is wound, and two cylinder end parts 31a exposed from the light control sheet 11 wrapped around the cylinder member 31 on both sides in the axial direction X of the cylinder member 31. and.

The wound body 35 includes a first easily peelable tape 16a. In this embodiment, at the winding start portion 21, the short side 14 is fixed to the cylindrical member 31 by five first easily peelable tapes 16a. More specifically, the adhesive surface of the first easily peelable tape 16a and the outer surface of the light control sheet 11 are pasted, and the adhesive surface of the first easily peelable tape 16a and the outer peripheral surface 31b are pasted. By doing so, the short side 14 is fixed to the cylindrical member 31. A portion of the outer surface of the light control sheet 11 that is attached to the adhesive surface of the first easily peelable tape 16a is referred to as a fixed portion 23. The adhesive force of the first easily peelable tape 16a per unit adhesive area is set to be weak so that the adhesive component of the first easily peelable tape 16a is unlikely to remain on the surface of the light control sheet 11 when unpacking.

The three first easily peelable tapes 16a are attached in the circumferential direction Y to fix the central portion of the short side 14 and the outer circumferential surface 31b. The number of first easily peelable tapes 16a attached to the center portion of the short side 14 in the circumferential direction Y may be changed depending on the length of the short side 14, the width of the first easily peelable tape 16a used, etc. good.

One first easily peelable tape 16a is attached at one end of the short side 14 in a direction between the axial direction It is pasted in the direction toward the edge of the This fixes the corner 14a of the light control sheet 11, which is one end of the short side 14, and the outer peripheral surface 31b.

The corner portion 14 a is included in the fixed portion 23 at the end of the short side 14 . The corner portion 14a includes an end of the short side 14 and an end of the long side 15. That is, the first easily peelable tape 16a that fixes the corner portion 14a of the light control sheet 11 fixes the end of the short side 14 and the end of the long side 15 to the outer circumferential surface 31b.

One first easily peelable tape 16a is attached at the other end of the short side 14 in a direction between the axial direction It is pasted in the direction toward the edge of the This fixes the corner 14a of the light control sheet 11, which is the other end of the short side 14, and the outer peripheral surface 31b.

By pasting one long first easily peelable tape 16a in the axial direction X, the entire short side 14 may be fixed to the cylindrical member 31 by one first easily peelable tape 16a. In that case, the number of fixed parts 23 on the short side 14 is one.

In the winding start portion 21, the first easily peelable tapes 16a that fix the short sides 14 are preferably arranged at substantially equal intervals. The short side 14 can be efficiently fixed with a small number of first easily peelable tapes 16a.

In the winding start portion 21, it is preferable that the corner portion 14a of the light control sheet 11 is fixed to the outer circumferential surface 31b by the first easily peelable tape 16a, as in the present embodiment. The corner portions 14a of the light control sheet 11, which have weak strength, can be protected by the first easily peelable tape 16a.

The wound body 35 includes two second easily peelable tapes 16b. The winding start portion 21 includes a fixed portion 24 located away from the short side 14 on each of the two long sides 15 connected to the short side 14 . At the winding start portion 21, with the inner surface of the light control sheet 11 aligned with the outer circumferential surface 31b, each of the two fixed portions 24 is attached to the outer circumferential surface 31b of the cylinder end portion 31a with the second easily peelable tape 16b. Fixed. More specifically, the outer surface of the light control sheet 11 and the adhesive surface of the second easily peelable tape 16b are attached, and the outer peripheral surface 31b of the cylindrical member 31 and the adhesive surface of the second easily peelable tape 16b are attached. As a result, the fixed portion 24 is fixed to the cylindrical member 31. A portion of the outer surface of the light control sheet 11 that is attached to the adhesive surface of the second easily peelable tape 16b is referred to as a fixed portion 24. The second easily peelable tape 16b has a weak adhesive force per unit adhesive area so that the adhesive component of the second easily peelable tape 16b is unlikely to remain on the surface of the light control sheet 11 when unpacking.

A portion of the light control sheet 11 that is in contact with the outer circumferential surface 31b of the cylindrical member 31 is referred to as a first round sheet portion. The fixed portion 24 is the outer surface of the light control sheet 11 including a part of the long side 15, and is a part of the first round of the light control sheet 11 wound around the cylindrical member 31. In this embodiment, the first round of the sheet portion includes two fixed objects arranged in the circumferential direction Y of the cylindrical member 31 on each of the two long sides 15 connected to the short sides 14 on the outer surface of the light control sheet 11. It includes sections 23 and 24. The fixed parts 23 and 24 are fixed to the outer circumferential surface 31b of the cylindrical member 31 with easily peelable tapes 16a and 16b, respectively. Note that the first round sheet portion may include two or more fixed portions 23 and 24 arranged on the outer surface of the light control sheet 11 in the circumferential direction Y of the cylindrical member 31. That is, by using two or more second easily peelable tapes 16b for one long side 15, the sheet portion of the first round has two peelable tapes on each of the two long sides 15 connected to the short side 14. The above fixed portion 24 may be provided.

Among the long sides 15 included in the fixed part 24, the point closest to the short side 14 is called a fixing start point 24a, and among the long sides 15 included in the fixed part 24, the point farthest from the short side 14 is called a fixing end point. It is called 24b. The light control sheet 11 is fixed to the tube end portion 31a by the second easily peelable tape 16b such that the portion of the long side 15 from the fixation start point 24a to the fixation end point 24b is in contact with the outer peripheral surface 31b of the tube member 31. Ru.

As shown in FIG. 4, the light control sheet 11 is wound around the cylindrical member 31 in the circumferential direction Y for one or more turns. The light control sheet 11 includes a winding end portion 25 that is a portion that contacts the outer surface of the light control sheet 11 wound around the tube member 31 and ends the winding around the tube member 31 . The winding end portion 25 includes one short side 14 of the light control sheet 11 and a pair of flexible wiring boards 12 connected to the short side 14.

The wound body 35 includes a first easily peelable tape 16a. The short side 14 at the winding end portion 25 is fixed to the outer surface of the light control sheet 11 wound around the cylindrical member 31 with the first easily peelable tape 16a. When the light control sheet 11 is finished winding, the position of the short side 14 in the axial direction X at the winding start part 21 and the position of the short side 14 in the axial direction X at the winding end part 25 become the same position. The length direction of the short side 14 in the winding end portion 25 is the same as the axial direction X of the cylindrical member 31. In this state, the short side 14 of the winding end portion 25 is fixed to the light control sheet 11 and the cylindrical member 31.

In this embodiment, the short side 14 is fixed to the light control sheet 11 and the cylindrical member 31 by the five first easily peelable tapes 16a at the winding end portion 25. The adhesive force of the first easily peelable tape 16a per unit adhesive area is set to be weak so that the adhesive component of the first easily peelable tape 16a is unlikely to remain on the outer surface of the light control sheet 11 when unpacking. .

The three first easily peelable tapes 16a are attached in the circumferential direction Y to fix the central portion of the short side 14 and the outer surface of the light control sheet 11 wound around the cylindrical member 31. The outer surface of the light control sheet 11 at the winding end portion 25 and the adhesive surface of the first easily peelable tape 16a are attached by the three first easily peelable tapes 16a. At the same time, the outer surface of the light control sheet 11 wound around the cylindrical member 31 and the adhesive surface of the first easily peelable tape 16a are attached. Thereby, the short side 14 is fixed to the outer surface of the light control sheet 11 by the three first easily peelable tapes 16a. The number of first easy-peel tapes 16a attached to the center portion of the short side 14 in the circumferential direction Y is changed depending on the length of the short side 14, the width of the first easy-peel tape 16a used, etc. It's okay.

One first easily peelable tape 16a is attached at one end of the short side 14 in a direction between the axial direction It is pasted in the direction toward the edge of the As a result, one first easily peelable tape 16a can be attached to the corner 14a of the light control sheet 11, which is one end of the short side 14, and to the outer surface of the light control sheet 11 wrapped around the cylindrical member 31. , and its corner 14a and outer circumferential surface 31b are fixed. More specifically, the adhesive surface of the first easily peelable tape 16a and the outer surface of the light control sheet 11 at the winding end portion 25 are pasted, and the adhesive surface of the first easily peelable tape 16a and the outer surface of the cylindrical member 31 are pasted together. The outer surface of the light control sheet 11 wrapped around the light control sheet 11 is attached. Furthermore, the adhesive surface of the first easily peelable tape 16a and the outer circumferential surface 31b are pasted. As a result, one corner 14a of the short side 14 in the winding end portion 25 is connected to the outer surface of the light control sheet 11 wound around the cylinder member 31 and the outer circumferential surface 31b by one first easily peelable tape 16a. and is fixed to.

In this embodiment, the corner portion 14a includes an end of the short side 14 and an end of the long side 15. That is, the first easily peelable tape 16a that fixes the corner 14a of the light control sheet 11 connects the ends of the short side 14 and the long side 15 of the light control sheet 11 wrapped around the cylindrical member 31. It is fixed to the outer surface and the outer peripheral surface 31b.

One first easily peelable tape 16a is attached at the other end of the short side 14 in a direction between the axial direction It is pasted in the direction toward the edge of the As a result, one first easily peelable tape 16a is attached to the corner 14a of the light control sheet 11, which is the other end of the short side 14, and to the outer surface of the light control sheet 11 wrapped around the cylindrical member 31. , and its corner 14a and outer circumferential surface 31b are fixed. More specifically, the adhesive surface of the first easily peelable tape 16a and the outer surface of the light control sheet 11 at the winding end portion 25 are pasted, and the adhesive surface of the first easily peelable tape 16a and the outer surface of the cylindrical member 31 are pasted together. The outer surface of the light control sheet 11 wrapped around the light control sheet 11 is attached. Furthermore, the adhesive surface of the first easily peelable tape 16a and the outer circumferential surface 31b are pasted. As a result, the other corner 14a of the short side 14 in the winding end portion 25 is connected to the outer surface of the light control sheet 11 wound around the cylindrical member 31 and the outer circumferential surface 31b by one first easily peelable tape 16a. and is fixed to.

By pasting one long first easily peelable tape 16a in the axial direction X, the entire short side 14 may be fixed to the cylindrical member 31 by one first easily peelable tape 16a. In that case, the number of fixed parts 23 on the short side 14 is one.

In the winding end portion 25, the first easily peelable tapes 16a that fix the short sides 14 are preferably arranged at substantially equal intervals. The short side 14 can be efficiently fixed with a small number of first easily peelable tapes 16a. Further, in the winding end portion 25, it is preferable that the corner portion 14a of the light control sheet 11 is fixed to the outer circumferential surface 31b as in the present embodiment. The corner portions 14a of the light control sheet 11, which have weak strength, can be protected by the first easily peelable tape 16a.

The wound body 35 includes a third easily peelable tape 16c. The third easily peelable tape 16c fixes the tip end 12c of the extending portion 12a of the flexible wiring board 12 to the light control sheet 11 wrapped around the cylindrical member 31. In this embodiment, the tips 12c of each of the two flexible wiring boards 12 are fixed to the outer surface of the light control sheet 11 wrapped around the cylindrical member 31 by the respective third easily peelable tapes 16c. Ru.

The tips 12c of the two flexible wiring boards 12 may be fixed to the outer surface of the light control sheet 11 with one long third easily peelable tape 16c. Further, the base end portion 12b of the flexible wiring board 12 may be fixed to the outer surface of the light control sheet 11 with yet another third easily peelable tape 16c. Further, in that case, the third easily peelable tape 16c that fixes the base end portion 12b may be attached to overlap the first easily peelable tape 16a that fixes the short side 14. The third easily peelable tape 16c is arranged per unit adhesive area so that the adhesive component of the third easily peelable tape 16c is unlikely to remain on the surface of the flexible wiring board 12 and the surface of the light control sheet 11 when unpacking. The adhesive force is set to be weak.

At the winding end portion 25, the light control sheet 11 may be finished winding around the cylindrical member 31 at the short side 14 where the flexible wiring board 12 is lined up. At this time, the third easily peelable tape 16c may fix the tip end 12c of the extending portion 12a of the flexible wiring board 12 to the light control sheet 11 wrapped around the cylindrical member 31. Alternatively, the winding may be started around the cylindrical member 31 from the short side 14 where the flexible wiring board 12 is lined up, and the winding around the cylindrical member 31 may be finished at the short side 14 where another flexible wiring board 12 is lined up. That is, the extending portion 12a may be fixed to at least one of the cylindrical member 31 and the light control sheet 11 with the third easily peelable tape 16c.

It is preferable that the flexible wiring board 12 is fixed to at least one of the cylindrical member 31 and the light control sheet 11 via a protective sheet (not shown). For example, a foam sheet, a foam cushioning material, or the like is used as the protective sheet. A foamed sheet is a cushioning material made by foaming polyethylene, for example, to include closed cells in the sheet to give it elasticity. Bubble cushioning refers to a sheet formed by trapping air in cylindrical protrusions, such as Bubble Wrap (registered trademark) or Air Cap (registered trademark). Because the protective sheet 51 prevents the outer surface of the cylindrical member 31 or the light control sheet 11 from coming into contact with the inner surface of the flexible wiring board 12, the surfaces of the flexible wiring board 12 and the light control sheet 11 are not scratched. It is possible to suppress sticking. Further, the entire flexible wiring board 12 or a part thereof may be protected from above the flexible wiring board 12 with a protective sheet (not shown).

The wound body 35 includes a fourth easily peelable tape 16d. On the outer surface of the light control sheet 11 to which the winding end portion 25 is fixed, there are two positions located at 180° opposite the position of the short side 14 of the winding end portion 25 with respect to the center CL of the cylindrical member 31. The long side 15 portion is fixed to the outer circumferential surface 31b by the fourth easily peelable tape 16d. More specifically, the adhesive surface of the fourth easily peelable tape 16d is attached to the outer surface of the light control sheet 11 to which the winding end portion 25 is fixed, and the adhesive surface of the fourth easily peelable tape 16d is attached. The outer peripheral surface 31b is attached. The two long side portions 15 are the long side portion 15 on one side in the axial direction X of the light control sheet 11 to which the winding end portion 25 is fixed, and the long side portion 15 on the other side.

In the winding end portion 25, the two corners 14a of the short side 14 are fixed to the outer circumferential surface 31b by the first easily peelable tape 16a, so that the position of the light control sheet 11 on the short side 14 is aligned with the axis. It becomes difficult to shift in direction X. Further, in the light control sheet 11 to which the winding end portion 25 is fixed, the long side 15 portion of the winding end portion 25 located 180° opposite to the position of the short side 14 is fixed to the outer peripheral surface 31b. Therefore, the position of the light control sheet 11 becomes difficult to shift in the axial direction X at this long side 15 portion. That is, at each of both ends of the cylindrical member 31, the outside of the dimmer sheet 11 when the dimmer sheet 11 is completely wound is located at two positions 180 degrees opposite to the center CL of the cylindrical member 31. The position of the side surface in the axial direction X is fixed. Thereby, the position of the entire light control sheet 11 can be made difficult to shift in the axial direction X during transportation.

[State of light control sheet 11 when the rolled body is unwound]
As shown in FIG. 5, when the light control sheet 11 is unwound from the cylindrical member 31 during the unpacking operation, the light control sheet 11 that was pressing the winding start part 21 from above is removed from the winding start part 21. When separated, the winding start portion 21 is exposed. In the winding start portion 21, a plurality of fixed portions 23 and two fixed portions 24 are fixed to the outer circumferential surface 31b such that the inner surface of the light control sheet 11 is along the outer circumferential surface 31b of the cylindrical member 31. has been done. FIG. 5 is a schematic diagram showing the bent shape of the long side 15 of the light control sheet 11 when the light control sheet 11 is unwound.

Since only a portion of the inner surface of the light control sheet 11 at the winding start portion 21 is fixed to the outer circumferential surface 31b, the other portion easily separates from the outer circumferential surface 31b. More specifically, a portion of the inner surface of the light control sheet 11 excluding a part of the short side 14 and a part of the long side 15 included in the fixed part 23 and a part of the long side 15 included in the fixed part 24 is not fixed to the outer peripheral surface 31b. Therefore, while slightly deforming the shapes of the easily peelable tapes 16a and 16b, the light control sheet 11 is attached to a part of the short side 14 and a part of the long side 15 included in the fixed part 23, and to a long part included in the fixed part 24. A portion other than a portion of the side 15 is raised from the outer circumferential surface 31b.

Here, the central angle formed by the short side 14 and the fixed end point 24b with respect to the center CL of the cylindrical member 31 is defined as a first angle θ1, and the short side 14 and the fixed starting point 24a form the center of the cylindrical member 31. The central angle formed with respect to CL is defined as a second angle θ2.

As shown in FIG. 6, when the distance between the short side 14 and the fixing end point 24b becomes larger than in the state shown in FIG. As such, the distance of the part to be fixed becomes longer. In other words, as the first angle θ1 increases, the angle at which the easily peelable tapes 16a, 16b fix the inner surface of the light control sheet 11 along the outer circumferential surface 31b increases. Similar to FIG. 5, FIG. 6 is a schematic diagram showing the bent shape of the long side 15 of the light control sheet 11 when the light control sheet 11 is unwound. More specifically, FIG. 6 shows the force acting when the light control sheet 11 is unwound when the central angle formed by the two free ends with respect to the center CL of the cylindrical member 31 greatly exceeds 60 degrees. It is a figure showing a relationship.

As shown in FIG. 7, when the distance between the short side 14 and the fixation start point 24a becomes smaller than in the state shown in FIG. length becomes shorter. In other words, when the second angle θ2 becomes smaller, the angle of the portion where the inner surface of the light control sheet 11 is not fixed to the outer circumferential surface 31b becomes smaller between the easily peelable tapes 16a and 16b. Similar to FIGS. 5 and 6, FIG. 7 is a schematic diagram showing the bent shape of the light control sheet 11 on the long side 15 when the light control sheet 11 is unwound. More specifically, FIG. 7 shows the force acting when the light control sheet 11 is unwound when the central angle formed by the two free ends with respect to the center CL of the cylindrical member 31 is much less than 60 degrees. It is a figure showing a relationship.

As shown in FIG. 7, when the distance between the short side 14 and the fixing end point 24b becomes short, the two first easily peelable tapes 16a fix the inner surface of the light control sheet 11 along the outer peripheral surface 31b. distance becomes shorter. In other words, when the first angle θ1 becomes smaller, the angle at which the two first easily peelable tapes 16a fix the inner surface of the light control sheet 11 along the outer circumferential surface 31b becomes smaller.

[Packaging structure]
As shown in FIG. 8, the package 100 of the light control sheet 11 is packed with the light control sheet 11 wrapped around the cylindrical member 31. Then, the protective sheet 51 is wound in the circumferential direction Y from above the light control sheet 11 to which the winding end portion 25 is fixed. Then, the terminal end of the wound protective sheet 51 is fixed in the circumferential direction Y to the outer surface of the wound protective sheet 51 by an easily peelable tape (not shown). As a result, due to the frictional force when the outer surface of the light control sheet 11 in the nth turn and the inner surface of the light control sheet 11 in the n+1 turn are pressed together, the outer surface of the light control sheet 11 in the nth turn is , and the inner surface of the n+1th turn of the light control sheet 11 can be prevented from being misaligned. The length of the protective sheet 51 in the axial direction X is slightly longer than the length of the short side 14 of the light control sheet 11. Thereby, the protective sheet 51 protects the entire outer surface of the light control sheet 11. Then, both ends of the protective sheet 51 in the axial direction X are fixed to the outer circumferential surface 31b of the cylindrical member 31 with an easily peelable tape (not shown). Due to the frictional force between the surface of the protection sheet 51 and the outer surface of the light control sheet 11, it is possible to suppress the positional relationship between the light control sheet 11 and the protection sheet 51 from shifting. Note that the protective sheet 51 is preferably wound at least twice. By winding the protective sheet 51 at least twice, the surfaces of the protective sheet 51 overlap with each other, so that it is possible to suppress the securing of the protective sheet 51 from loosening due to the frictional force between the surfaces of the protective sheet 51.

The package 100 includes a first fixing member 41 fitted into one cylindrical end 31a, and a second fixing member 42 fitted into the other cylindrical end 31a. The first fixing member 41 and the second fixing member 42 are plates having a substantially square shape, and for example, a corrugated board is used. Note that plastic cardboard may also be used.

The first fixing member 41 and the second fixing member 42 have a first hole 45 approximately in the center. In this embodiment, the first fixing member 41 and the second fixing member 42 have the same shape. One cylindrical end 31 a is fitted into the first hole 45 of the first fixing member 41 . The other cylindrical end 31 a is fitted into the first hole 45 of the second fixing member 42 . The first fixing member 41 and the second fixing member 42 are fitted to a position where the periphery of the first hole 45 on the side where the cylinder end 31 a is fitted contacts the end of the protective sheet 51 . The frictional force between the surface of the protective sheet 51 and the outer surface of the light control sheet 11 prevents the positional relationship between the light control sheet 11 and the protection sheet 51 from shifting. Therefore, by regulating the positions of both ends of the protective sheet 51 in the axial direction X, the position of the light control sheet 11 is regulated. Thereby, the first fixing member 41 and the second fixing member 42 position the light control sheet 11, around which the protective sheet 51 is wound, with respect to the cylindrical member 31 in the axial direction X of the cylindrical member 31. In other words, the first fixing member 41 and the second fixing member 42 are a pair of position regulating members that position the light control sheet 11 with respect to the cylindrical member 31 in the axial direction X of the cylindrical member 31.

The protective sheet 51 may be omitted. Further, the length of the protective sheet 51 in the axial direction X may be slightly shorter than the length of the short side 14 of the light control sheet 11, and the long side 15 of the light control sheet 11 may be exposed from the protection sheet 51. In that case, the first fixing member 41 and the second fixing member 42 may directly position the light control sheet 11 with respect to the cylindrical member 31 in the axial direction X of the cylindrical member 31. However, in order to protect the long sides 15 of the light control sheet 11, it is preferable that the protective sheet 51 protects the entire outer surface of the light control sheet 11.

The distance between the first fixing member 41 and the long side 15 on one side and the distance between the second fixing member 42 and the long side 15 on the other side are preferably 10 mm or more. Due to the impact buffering effect of the protective sheet 51 located between the first fixing member 41 and the long side 15 on one side, when the first fixing member 41 receives an impact, the impact is transmitted to the light control sheet 11. , damage to the light control sheet 11 can be suppressed. Further, due to the impact buffering effect of the protective sheet 51 located between the second fixing member 42 and the other long side 15, when the second fixing member 42 receives an impact, the impact is transferred to the light control sheet 11. It is possible to prevent the light control sheet 11 from being damaged due to the light transmission.

The first fixing member 41 and the second fixing member 42 each have two second holes 46. The two second holes 46 are provided at positions that are approximately symmetrical about the center of the first hole 45 . The first fixing member 41 and the second fixing member 42 are arranged such that the first fixing member 41 is attached to one cylindrical end 31a and the second fixing member 42 is attached to the other end with the two second holes 46 facing upward. They are fitted into the cylinder end 31a in the same phase. At this time, the first holes 45 are arranged at a height where the outer peripheral surface of the protective sheet 51 wound around the light control sheet 11 does not come into contact with the floor surface or the work surface.

When the light control sheet 11 wound around the protective sheet 51 is fitted into the first fixing member 41 and the second fixing member 42, the short side 14 where the flexible wiring board 12 is lined up is facing down. It is preferable that it be fitted. The electrode portion of the light control sheet 11 is located on the short side 14 where the flexible wiring board 12 is lined up, and the electrode portion is a place that is vulnerable to impact. Unpacking is performed from the top. Therefore, by locating the short side 14 where the flexible wiring board 12 is lined up at a position far from the top where the packaging box 61 is most likely to receive a shock when the packaging box 61 is unpacked, it is possible to can be prevented from being damaged. Further, since the short side 14 on which the flexible wiring board 12 is arranged is placed downward, the position of the electrode part is the farthest position from the upper part. Therefore, even if the light control sheet 11 wrapped around the protective sheet 51 rotates a little in the circumferential direction Y during transportation, the electrode part will rarely rotate all the way to the top, so the electrode part will be damaged when unpacking. can be restrained from doing so.

The first operator inserts the fingers of his right hand into one of the second holes 46 in the upper part of the first fixing member 41, and inserts the fingers of his left hand into the other second hole 46. Then, the second worker inserts the fingers of his right hand into one of the second holes 46 in the upper part of the second fixing member 42, and inserts the fingers of his left hand into the other second hole 46. Thereby, two workers can lift the light control sheet 11 wrapped around the protection sheet 51 without directly touching the light control sheet 11 wrapped around the protection sheet 51. That is, the wound light control sheet 11 can be moved without changing the state of the light control sheet 11 wound around the cylindrical member 31.

As shown in FIG. 9, the package 100 of the light control sheet 11 includes: a packaging box 61 in which the light control sheet 11 wrapped around the cylinder member 31 is packed; a cylinder member 31 housed in the packaging box 61; A light control sheet 11 is provided. In other words, in the package 100, the cylindrical member 31 is housed in the packaging box 61. The packaging box 61 is preferably made of a material that is light, strong, durable, and inexpensive. For example, a cardboard box is used as the cylindrical member 31. The light control sheet 11 wrapped around the cylindrical member 31 is lifted by the two second holes 46 of the first fixing member 41 and the two second holes 46 of the second fixing member 42, and then packed. It is placed in a box 61.

As shown in FIG. 10, the package 100 includes a third fixing member 43 that fixes one end 31c of the cylindrical member 31 in the axial direction X of the cylindrical member 31 to the packaging box 61. The package 100 includes a fourth fixing member 44 that fixes the other end 31 d of the cylindrical member 31 in the axial direction X of the cylindrical member 31 to the packaging box 61 . The third fixing member 43 and the fourth fixing member 44 are plates having a substantially square shape, and for example, a corrugated board is used. Note that plastic cardboard may also be used.

Compared to the dimension of the cylindrical member 31 in the axial direction X, the inner dimension of the packaging box 61 in the axial direction It is shorter by the same size. Therefore, the light control sheet 11 wrapped around the cylindrical member 31 can be easily placed inside the packaging box 61. After the light control sheet 11 wrapped around the cylindrical member 31 is placed in the packaging box 61, the third fixing member 43 and the fourth fixing member 44 are placed. More specifically, the third fixing member 43 is inserted between the inner wall 61a of the packaging box 61 and one end 31c, and the third fixing member 43 is inserted between the inner wall 61b of the packaging box 61 and the other end 31d. , the fourth fixing member 44 is inserted. As a result, the position of the light control sheet 11 wrapped around the cylindrical member 31 in the axial direction X within the packaging box 61 is fixed.

Since the light control sheet 11 wrapped around the cylindrical member 31 is supported by the first fixing member 41 and the second fixing member 42, the outer surface of the protective sheet 51 wrapped around the light control sheet 11 and the packaging box A gap Δ is formed between the inner surface including the inner bottom 61c of 61. In other words, the first fixing member 41 and the second fixing member 42 are located between the respective outer circumferential surfaces 31b of the cylinder end 31a on both sides in the axial direction X and the inner surface of the packaging box 61. This is a position regulating member that separates the light control sheet 11 wrapped around the cylindrical member 31 from the inner surface of the box 61. Note that the inner surfaces including the inner bottom 61c of the packaging box 61 are the four inner surfaces located in the direction perpendicular to the axial direction X when the packaging box 61 is closed. Further, the values of the gaps Δ between the four inner surfaces may be different values.

[Method of manufacturing the package]
A method of manufacturing the package 100 in this embodiment will be described.
The package 100 is manufactured using the following procedure.

(a) The light control sheet 11 to be packaged is spread out flat and placed on a workbench with the side to which the product label is attached facing up. A cylindrical member 31 having a length longer than the short side 14 of the light control sheet 11 by 50 mm or more and a diameter of 10 inches is placed next to the light control sheet 11.

(b) Two corner portions 14a of the short side 14 in the winding start portion 21 of the light control sheet 11 and a plurality of central portions of the short side 14 are connected to the cylindrical member 31 with an easily peelable tape 16a having a width of 50 mm. is fixed to the outer circumferential surface 31b of. The position of the short side 14 in the winding start portion 21 is approximately at the center of the cylindrical member 31 in the axial direction X, and the length direction of the short side 14 is in the same direction as the axial direction X of the cylindrical member 31. Become.

(c) While the inner surface of the light control sheet 11 is aligned with the outer peripheral surface 31b of the cylindrical member 31, each of the two long sides 15 connected to the short side 14 is attached to the cylindrical member 31 using an easily peelable tape 16b having a width of 50 mm. It is fixed to the outer peripheral surface 31b. The fixed position is a position where the distance between the short side 14 and the fixed start point 24a is 50 mm or more and 100 mm or less.

(d) When there is a flexible wiring board 12 connected to the short side 14 of the winding start part 21 of the light control sheet 11, the base end 12b and the tip end 12c of the flexible wiring board 12 are It is fixed to the outer circumferential surface 31b of the cylindrical member 31 via the protective sheet by the easily peelable tape 16c. The entire short side 14 of the flexible wiring board 12, including the base end 12b which is the electrode portion, is protected from above by a protective sheet.

(e) The light control sheet 11 is wound around the outer peripheral surface 31b of the cylindrical member 31 one or more times. The two corner portions 14a of the short side 14 at the winding end portion 25 of the light control sheet 11 and the plurality of central portions of the short side 14 are connected to the light control sheet 11 wrapped around the cylindrical member 31 with an easily peelable tape 16a. It is fixed to the outer surface of the optical sheet 11 and the outer peripheral surface 31b of the cylindrical member 31.

(f) With respect to the center CL of the cylindrical member 31, two long side 15 portions located 180° opposite to the short side 14 in the winding end portion 25 are fixed with the fourth easily peelable tape 16d having a width of 50 mm. It is fixed to the outer peripheral surface 31b of the cylindrical member 31.

(g) When there is a flexible wiring board 12 connected to the short side 14 of the winding end portion 25 of the light control sheet 11, the base end 12b and the tip end 12c of the flexible wiring board 12 are It is fixed to the outer surface of the light control sheet 11 via the protective sheet with the easily peelable tape 16c.

(h) The protective sheet 51 is wound over the light control sheet 11 to which the winding end portion 25 is fixed. Then, the terminal end of the protective sheet 51 when wound is fixed to the outer surface of the wound protective sheet 51. Then, both ends of the protective sheet 51 in the axial direction X are fixed to the outer circumferential surface 31b of the cylindrical member 31. Then, a label sticker indicating that the product is a packaged product is pasted on the protective sheet 51.

(i) With the first fixing member 41 and the second fixing member 42 facing upward, the first fixing member 41 is attached to one cylindrical end 31a, and the second fixing member 42 is attached to the other end. It is fitted into the cylindrical end 31a of. The first fixing member 41 and the second fixing member 42 are fitted to a position where the periphery of the first hole 45 presses against the edge of the protective sheet 51.

(j) The light control sheet 11 wrapped around the cylindrical member 31 is lifted by the two second holes 46 of the first fixing member 41 and the two second holes 46 of the second fixing member 42. and placed in the packaging box 61.

(k) The third fixing member 43 is inserted between the inner wall 61a of the packaging box 61 and one end 31c, and between the inner wall 61b of the packaging box 61 and the other end 31d, By inserting the fourth fixing member 44, the position of the light control sheet 11 in the axial direction X is fixed.

(l) The lid of the packaging box 61 is closed and sealed with packaging tape. Finally, a label sticker indicating that the product is a packaged product is attached to the outer surface of the packaging box 61, and the packaging work for manufacturing the packaged body 100 in this embodiment is completed.

[Operation of this embodiment]
The operation of this embodiment will be explained.
As shown in FIG. 5, when the light control sheet 11 is unwound from the cylindrical member 31 during the unpacking operation, the light control sheet 11 that was pressing the winding start part 21 from above is removed from the winding start part 21. When separated, the winding start portion 21 is exposed. In the winding start part 21, the light control sheet 11 is fixed to the outer peripheral surface 31b at a fixed part 23 that fixes the short side 14, and a fixed part 24 that fixes a position away from the short side 14. and is fixed to the outer peripheral surface 31b.

At the long side 15 portion, the fixed part 23 becomes one free end due to the adhesive force Fa of the first easily peelable tape 16a, and the fixed part 24 becomes the other free end due to the adhesive force Fb of the second easily peelable tape 16b. becomes. The light control sheet 11 forms a beam bending curve by slightly lifting a portion between the fixed portion 23 and the fixed portion 24 that are not fixed to the outer peripheral surface 31b.

The deflection curve of the beam is a cubic curve, and the outer peripheral surface 31b is a circle. A circular arc that is part of a circle is approximated by a quadratic curve. The slope of the cubic curve passing through the origin of the XY coordinates near the origin is smaller than the slope of the quadratic curve passing through the origin of the XY coordinates near the origin. In other words, the radius of curvature near the origin of a cubic curve passing through the origin of the XY coordinates is larger than the radius of curvature near the origin of a quadratic curve passing through the origin of the XY coordinates. Therefore, in the vicinity of the free end of the light control sheet 11, the radius of curvature of the light control sheet 11 becomes larger than the radius of curvature of the outer peripheral surface 31b of the cylindrical member 31. More specifically, in the light control sheet 11, the part between the fixed part 23, which is one free end, and the fixed part 24, which is the other free end, is slightly raised, so that the light control sheet 11 is free. The end portion is deformed so that the radius of curvature becomes larger than the radius of curvature of the outer peripheral surface 31b. Then, while slightly deforming the shapes of the easily peelable tapes 16a and 16b by the bending force Fc of the light control sheet 11, the light control sheet 11 is applied to the outer peripheral surface of the portion between the fixed part 23 and the fixed part 24. It rises from 31b. The force that causes the light control sheet 11 fixed to the fixed portion 23 and the fixed portion 24 as free ends to rise from the outer circumferential surface 31b at the winding start portion 21 is the bending force Fc.

It is desirable that the central angle formed by the two free ends with respect to the center CL of the cylindrical member 31 is approximately 60 degrees. At this time, the light control sheet 11 as a beam deflection curve which is a cubic curve is in contact with the outer circumferential surface 31b as a circular arc at two free ends. Therefore, at the two free ends, the directions of the forces Fd1a, Fd1b, Fd2a, and Fd2b that turn up the easily peelable tapes 16a and 16b from the outer circumferential surface 31b are substantially perpendicular to the outer circumferential surface 31b. The forces Fd1a, Fd1b, Fd2a, and Fd2b that turn up the easily peelable tapes 16a and 16b are generated by the bending force Fc of the light control sheet 11.

More specifically, a force Fd1a is applied to turn up the easily peelable tapes 16a and 16b on the short side 14 side of the fixed part 23 from the direction of the end of the beam, and a force Fd1a is used to turn up the easily peelable tapes 16a and 16b on the short side 14 side of the fixed part 23, and a force Fd1a is applied on the short side 14 side of the fixed part 23 toward the center of the beam. The force Fd1b for turning up the easily peelable tapes 16a and 16b is approximately equal. Then, a force Fd2b is applied to flip up the easily peelable tapes 16a, 16b from the direction of the end of the beam on the fixing end point 24b side of the fixed part 24, and a force Fd2b is applied to flip up the easily peelable tapes 16a, 16b from the direction of the center of the beam on the fixing start point 24a side. The turning-up force Fd2a is approximately equal. As a result, at the two free ends, the directions of the forces Fd1a, Fd1b, Fd2a, and Fd2b that turn up the easily peelable tapes 16a and 16b from the outer circumferential surface 31b are substantially perpendicular to the outer circumferential surface 31b. Therefore, even if the easily peelable tapes 16a and 16b have small adhesive forces Fa and Fb, they can withstand the lifting forces Fd1a, Fd1b, Fd2a, and Fd2b. This makes it difficult for the easily peelable tapes 16a, 16b to peel off from the outer peripheral surface 31b. That is, when the central angle formed by the two free ends with respect to the center CL of the cylindrical member 31 is approximately 60 degrees, the fixation of the light control sheet 11 to the outer circumferential surface 31b at the winding start portion 21 is stable.

As shown in FIG. 6, in the circumferential direction Y, the position of the fixed part 24 moves away from the position of the fixed part 23. That is, in the light control sheet 11, the fixed part 24 shown in FIG. 6, which is located at a position farther from the center of the beam than the fixed part 24 shown in FIG. 5, is brought into close contact with the outer peripheral surface 31b. Then, the force Fd2b that lifts up the fixing end point 24b side of the fixed part 24 from the end side of the beam increases by the wrapping angle. Since the deflection curve of the beam is symmetrical with respect to the center of the beam, similarly, the force Fd1a that lifts up the short side 14 side of the fixed portion 23 from the end side of the beam becomes large.

More specifically, as the first angle θ1 increases, the bending force Fc increases by the amount that the first angle θ1 increases, and the forces Fd1a and Fd2b that turn up the beam from the end side increase. Then, the adhesive forces Fa and Fb of the easily peelable tapes 16a and 16b cannot withstand the flipping forces Fd1a and Fd2b. Then, compared to the state shown in FIG. 5, the fixing end point 24b side of the fixed part 24 is raised significantly, and the short side 14 side of the fixed part 23 is raised significantly. Note that when the first angle θ1 is large, the bending force Fc becomes large, so that when the light control sheet 11 is unwound from the cylindrical member 31, the fixed part 24 is completely flipped up from the fixed end point 24b side. Therefore, the second easily peelable tape 16b may be peeled off.

The fixed portion 24 only fixes a portion of the long side 15 on the inner surface of the light control sheet 11 to the outer circumferential surface 31b. Therefore, in the central portion of the light control sheet 11 in the axial direction X, the inner surface of the light control sheet 11 does not align with the outer peripheral surface 31b, and the light control sheet 11 is lifted from the outer peripheral surface 31b by the bending force Fc. As a result, in the center portion of the light control sheet 11 in the axial direction X, the bending shape becomes gentler, so that the force that lifts the fixed portion 23 is reduced. However, on the long side 15 of the light control sheet 11, the second easily peelable tape 16b fixing a part of the long side 15 included in the fixed portion 24 suppresses the light control sheet 11 from lifting up. In other words, the force that lifts up the fixed portion 23 is greatest at the corner 14a of the short side 14.

In this way, the light control sheet 11 is deformed so that the corner 14a of the short side 14 of the fixed part 23 is lifted up the most while the fixed end point 24b side of the fixed part 24 is turned up. A restoring force is generated in the deformed light control sheet 11. The restoring force is a force that causes the bent light control sheet 11 to return to its straight state.

Since the light control sheet 11 has a rectangular shape, the strength of the corners 14a is weaker than the strength of other parts. The force that lifts up the fixed portion 23 is greatest at the corner 14a of the short side 14. Furthermore, as the first angle θ1 increases, the bending force Fc increases by the amount that the first angle θ1 increases, so a large restoring force acts on the bent light control sheet 11. Therefore, if the first angle θ1 becomes large, there is a risk that the corner portion 14a may break due to the restoring force when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work. Since the central angle formed by the two free ends of the beam's deflection curve with respect to the center CL of the cylindrical member 31 is set to approximately 60 degrees, the easily peelable tapes 16a and 16b are not peeled off during unpacking work. , and corner portions 14a can be prevented from breaking.

As shown in FIG. 7, in the circumferential direction Y, the position of the fixed part 24 approaches the position of the fixed part 23. That is, in the light control sheet 11, the fixed part 24 shown in FIG. 7, which is located closer to the center of the beam than the fixed part 24 shown in FIG. 5, is brought into close contact with the outer peripheral surface 31b. This portion is a portion where the light control sheet 11 was lifted from the outer circumferential surface 31b due to the bending force Fc. Then, the force Fd2a that lifts up the fixing starting point 24a side of the fixed part 24 from the center side of the beam increases by the angle of close contact. Since the deflection curve of the beam is symmetrical with respect to the center of the beam, similarly, the force Fd1b that lifts up the fixed portion 23 from the center side of the beam becomes large.

More specifically, as the second angle θ2 becomes smaller, although the bending force Fc becomes smaller, the forces Fd2a and Fd1b that lift up the beam from the center side become larger. Then, the adhesive forces Fa and Fb of the easily peelable tapes 16a and 16b cannot withstand the lifting force Fd2a and Fd1b, and the fixing start point 24a side of the fixed part 24 is lifted up compared to the state shown in FIG. The opposite side of the short side 14 of the fixed part 23 is raised. That is, the center portion of the beam is lifted up while turning over the easily peelable tapes 16a and 16b.

The fixed portion 24 only fixes a portion of the long side 15 on the inner surface of the light control sheet 11 to the outer circumferential surface 31b. Therefore, in the central portion of the light control sheet 11 in the axial direction X, the inner surface of the light control sheet 11 does not align with the outer peripheral surface 31b, and the light control sheet 11 is lifted from the outer peripheral surface 31b by the bending force Fc. As a result, in the center portion of the light control sheet 11 in the axial direction X, the bending shape becomes gentler, so that the force that lifts the fixed portion 23 is reduced. However, on the long side 15 of the light control sheet 11, the second easily peelable tape 16b fixing a part of the long side 15 included in the fixed portion 24 suppresses the light control sheet 11 from lifting up. In other words, the force that lifts up the fixed portion 23 is greatest at the corner 14a of the short side 14.

In this way, the light control sheet 11 is deformed so that the fixing start point 24a side of the fixed part 24 is turned up, and the corner part 14a of the short side 14 of the fixed part 23 is lifted up the most. A restoring force is generated in the deformed light control sheet 11. The restoring force is a force that causes the bent light control sheet 11 to return to its straight state.

Since the light control sheet 11 has a rectangular shape, the strength of the corners 14a is weaker than the strength of other parts. The force that lifts up the fixed portion 23 is greatest at the corner 14a of the short side 14. Therefore, as shown in FIG. 7, when the second angle θ2 becomes small, there is a risk that the corner portion 14a may break due to the restoring force when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work. Since the central angle formed by the two free ends of the beam's deflection curve with respect to the center CL of the cylindrical member 31 is set to approximately 60 degrees, the easily peelable tapes 16a and 16b are not peeled off during unpacking work. , and corner portions 14a can be prevented from breaking.

When the second angle θ2 becomes smaller, the first angle θ1 also becomes smaller. When the first angle θ1 becomes small, the fixation between the light control sheet 11 and the cylindrical member 31 at the winding start portion 21 becomes unstable. When a member to be fixed has two fixing locations, the longer the distance between the two locations, the more stable the fixing of the member. By increasing the first angle θ1, the fixation between the light control sheet 11 and the cylinder member 31 at the winding start portion 21 can be stabilized. That is, it is possible to prevent the easily peelable tapes 16a and 16b from peeling off and to prevent the corner portion 14a from breaking during unpacking.

As shown in FIG. 4, in the winding end portion 25, the short side 14 is fixed to the outer peripheral surface 31b by the first easily peelable tape 16a, and the short side 14 is fixed to the outer circumferential surface 31b by the first easily peelable tape 16a, and is 180° opposite the position of the short side 14 in the winding end portion 25. The located long side 15 portion is fixed to the outer peripheral surface 31b. That is, at two positions 180° opposite to the center CL of the cylindrical member 31, in the axial direction The position is fixed.

As shown in FIG. 8, the protective sheet 51 is wound in the circumferential direction Y from above the light control sheet 11 whose position in the axial direction X of the outer surface of the light control sheet 11 is fixed. Then, the terminal end of the wound protective sheet 51 is fixed in the circumferential direction Y to the outer surface of the wound protective sheet 51 by an easily peelable tape (not shown). As a result, the outer surface of the n-th turn of the light control sheet 11 and the inner surface of the n+1th turn of the light control sheet 11 are pressed together. The frictional force at that time prevents the outer surface of the n-th turn of the light control sheet 11 and the inner surface of the n+1th turn of the light control sheet 11 from shifting. The positions of the light control sheet 11 and the protection sheet 51 are fixed by the frictional force between the surface of the protection sheet 51 and the outermost outer surface of the light control sheet 11.

The first fixing member 41 and the second fixing member 42 position both ends of the protective sheet 51 in the axial direction X with respect to the cylindrical member 31 in the axial direction X of the cylindrical member 31 . This makes it possible to position the light control sheet 11 wound around the tube member 31 from the first circumference light control sheet 11 to the outermost circumference light control sheet 11 in the axial direction X of the tube member 31. can.

As shown in FIG. 9, the third fixing member 43 and the fourth fixing member 44 position the cylindrical member 31 in the axial direction X within the packaging box 61. Thereby, the entire light control sheet 11 can be positioned within the packaging box 61.

[Results of stability confirmation at the start of winding]
When the value of the first angle θ1 and the value of the second angle θ2 are changed to form a rolled body 35 in which the light control sheet 11 is wound around the cylindrical member 31, and the rolled body 35 is unwound. Regarding the stability at the winding start portion 21, the following results were obtained.

When the first angle θ1 is larger than 69 degrees, when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work, the easily peelable tapes 16a and 16b are peeled off or the corner portion 14a is broken. It was confirmed that there is. Further, when the second angle θ2 is smaller than 23 degrees, the easily peelable tapes 16a and 16b may be peeled off when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work, or the corner portion 14a may be It was confirmed that it may break. Furthermore, when the first angle θ1 is smaller than 46 degrees, the easily peelable tapes 16a and 16b may be peeled off when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work, or the corner portion 14a may be peeled off. It was confirmed that it may break. Note that "folding" includes a state of deformation that reduces the commercial value due to damage to the light control sheet 11, such as an irreversibly bent state, a scratch, or a crack.

That is, if the first angle θ1 is larger than 69 degrees, there is a risk that the corner portion 14a may break due to the restoring force when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work. Furthermore, if the second angle θ2 is smaller than 23 degrees, there is a risk that the corner portion 14a may break due to the restoring force when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work. Furthermore, if the first angle θ1 is smaller than 46 degrees, when the light control sheet 11 is unwound from the cylindrical member 31 during unpacking work, the fixation of the light control sheet 11 may shift, causing the corner portion 14a to break. There is a possibility.

In this embodiment, the magnitude of the first angle θ1 is 69 degrees or less. Therefore, it is possible to suppress the corner portion 14a from breaking during unpacking work. In this embodiment, the magnitude of the second angle θ2 is 23 degrees or more. Therefore, it is possible to suppress the corner portion 14a from breaking during unpacking work. In this embodiment, the magnitude of the first angle θ1 is 46 degrees or more. Therefore, it is possible to suppress the corner portion 14a from breaking during unpacking work.

For confirmation, a paper tube with a diameter of 10 inches was used for the cylindrical member 31, a masking tape with a width of 50 mm was used for the easily peelable tapes 16a and 16b, and light control sheets 11 with multiple specifications were used for the light control sheet 11. Ta. When the corner portion 14a can be prevented from breaking during unpacking work, the distance between the short side 14 and the fixing start point 24a is 50 mm or more and 100 mm or less, and the distance between the short side 14 and the fixing end point 24b is 50 mm or more and 100 mm or less. The distance was 100 mm or more and 150 mm or less. Specifically, when the distance between the short side 14 and the fixed start point 24a is 100 mm, the distance between the short side 14 and the fixed end point 24b is 150 mm, and the first angle θ1 is 69 degrees. Further, when the distance between the short side 14 and the fixed start point 24a is 50 mm, the distance between the short side 14 and the fixed end point 24b is 100 mm, the first angle θ1 is 46 degrees, and the second angle θ2 The magnitude of is 23 degrees.

[Effects of this embodiment]
The effects of this embodiment will be explained.
(1) The winding start portion 21 includes a fixed portion 24 located away from the short side 14 on one short side 14 of the light control sheet 11 and on each of the two long sides 15 connected to the short side 14. Be prepared. The short side 14 is fixed to the outer peripheral surface 31b of the cylinder member 31 by the first easily peelable tape 16a, and each of the two fixed parts 24 is fixed to the outer peripheral surface 31b of the cylinder end 31a by the second easily peelable tape 16b. Fixed. Therefore, when the light control sheet 11 is unwound from the cylindrical member 31, the burden due to the force that causes the winding start portion 21 to rise from the outer circumferential surface 31b of the cylindrical member 31 is not applied only to the short side 14. Therefore, when the light control sheet 11 is unwound from the cylindrical member 31, the corner portion 14a of the light control sheet 11 is prevented from being bent due to the force that causes the winding start portion 21 to rise from the outer peripheral surface 31b of the cylindrical member 31. be able to.

(2) When the first angle θ1 that determines the fixing end point 24b becomes smaller, the force Fd1a that turns up the corner 14a of the short side 14 becomes smaller than when the first angle θ1 is large. Since the force Fd1a that lifts up the corner 14a of the short side 14 becomes smaller, the force that lifts up the corner 14a of the short side 14 also becomes smaller. When the magnitude of the first angle θ1 is 69 degrees or less, the force that lifts up the corner 14a of the short side 14 is reduced, so that the corner 14a of the light control sheet 11 is less likely to break. That is, when the magnitude of the first angle θ1 is 69 degrees or less, it is possible to further suppress the bending of the corner portion 14a of the light control sheet 11 while firmly fixing the winding start portion 21.

(3) When the first angle θ1 that determines the fixed end point 24b becomes larger, the short side 14 when the light control sheet 11 is unwound from the cylindrical member 31 becomes smaller than when the first angle θ1 is small. The distance between the fixed end point 24b and the fixed end point 24b increases. This stabilizes the fixation of the winding start portion 21 to the cylindrical member 31. When the magnitude of the first angle θ1 is 46 degrees or more, the frequency of unstable fixation between the light control sheet 11 and the cylindrical member 31 at the winding start portion 21 decreases. That is, when the magnitude of the first angle θ1 is 46 degrees or more, the winding start portion 21 can be fixed more firmly.

(4) When the magnitude of the second angle θ2 that determines the fixing start point 24a increases, the force Fd1b that turns up the corner portion 14a of the short side 14 becomes smaller than when the second angle θ2 is small. Since the force Fd1b for turning up the corner 14a of the short side 14 is reduced, the force for lifting the corner 14a of the short side 14 is also reduced. When the magnitude of the second angle θ2 is 23 degrees or more, the force that lifts up the corner portion 14a of the short side 14 is reduced, and the frequency of folding of the light control sheet 11 is reduced. That is, when the magnitude of the second angle θ2 is 23 degrees or more, it is possible to further suppress the bending of the corner portion 14a of the light control sheet 11 while firmly fixing the winding start portion 21.

(5) The extending portion 12a is fixed to at least one of the cylindrical member 31 and the light control sheet 11 with the third easily peelable tape 16c. Therefore, the position of the flexible wiring board 12 becomes difficult to shift with respect to the cylindrical member 31 or the light control sheet 11. Therefore, it is possible to suppress the application of force to the joint portion between the first transparent electrode film 11a and the flexible wiring board 12.

(6) The first fixing member 41 and the second fixing member 42 position the light control sheet 11 with respect to the cylindrical member 31 in the axial direction X of the cylindrical member 31. Therefore, even in the portion of the light control sheet 11 that is not fixed to the outer peripheral surface 31b of the cylinder member 31, movement of the light control sheet 11 in the axial direction X of the cylinder member 31 is suppressed. For this reason, it is possible to suppress the outer surface of the n-th turn of the light control sheet 11 and the inner surface of the n+1th turn of the light control sheet 11 from rubbing against each other.

(7) A light control sheet wrapped around the cylindrical member 31 by positioning the cylindrical member 31 with respect to the packaging box 61 in the axial direction X of the cylindrical member 31 by the third fixing member 43 and the fourth fixing member 44 11 suppresses movement of the cylindrical member 31 in the axial direction X inside the packaging box 61. Therefore, it is possible to suppress the light control sheet 11 from shifting in the axial direction X of the cylindrical member 31 with respect to the packaging box 61.

(8) The unwinding of the sheet portion in the first round is suppressed by fixing at multiple locations with the easily peelable tape 16b, and the light control sheet 11 is separated from the inner surface of the packaging box 61 while the unwinding is suppressed. Fixing members 41 and 42 are arranged at both ends in the axial direction X. The fixing members 41 and 42 located at both ends in the axial direction Prevents deviation from occurring. Therefore, the outer surface of the outermost light control sheet 11 is prevented from rubbing, and the outer surface of the nth light control sheet 11 and the inner surface of the n+1th light control sheet 11 are prevented from rubbing. I can do it.

[Example of modification of this embodiment]
Note that this embodiment can be implemented with the following modifications. This embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.

- After overlapping the protective sheet on the outer surface of the light control sheet 11, the light control sheet 11 and the protection sheet are wrapped around the cylindrical member 31 while the light control sheet 11 and the protection sheet are still overlapped. It's okay. Since the outer surface of the n-th turn of the light control sheet 11 and the inner surface of the n+1th turn of the light control sheet 11 do not come into contact with each other due to the protective sheet, it is possible to suppress the surfaces of the light control sheet 11 from rubbing against each other. can.

- The second light control sheet 11 may be further wrapped around the light control sheet 11 wrapped around the cylindrical member 31 and then packed. In that case, it is preferable that the second light control sheet 11 is wound onto the protective sheet 51 which is wound over the light control sheet 11 wound around the cylindrical member 31 . Because the protective sheet 51 prevents the outermost surface of the light control sheet 11 wrapped around the cylindrical member 31 from coming into contact with the inner surface of the first turn of the second light control sheet 11, the light control sheet 11 can prevent scratches on the surface. Furthermore, after the protective sheet 51 is wrapped around the second light control sheet 11, the third light control sheet 11 may be wrapped and packed. In this way, after a plurality of light control sheets 11 are wrapped around one cylindrical member 31, they may be packed in one packaging box 61. Thereby, a plurality of light control sheets 11 can be packed in one packaging box 61.

- As mentioned above, when packing a plurality of light control sheets 11 in one packaging box 61, the positions of the flexible wiring boards 12 in each light control sheet 11 in the axial direction X do not overlap. The light control sheet 11 may be wound with shifted positions in the axial direction X. This can prevent the wrapping state of the plurality of light control sheets 11 from becoming unstable due to overlapping positions of the flexible wiring boards 12 in the axial direction X.

- The light control sheet 11 may include a lead wire connected to the first transparent electrode layer 11c and a lead wire connected to the second transparent electrode layer 11f instead of the flexible wiring board 12. The lead wire may include an extending portion 12a extending from the short side 14 of the light control sheet 11 toward the outside of the first transparent electrode film 11a or the second transparent electrode film 11d. The extending portion 12a may be fixed to at least one of the cylindrical member 31 and the light control sheet 11 with a third easily peelable tape 16c. The lead wire is preferably fixed to at least one of the cylindrical member 31 and the light control sheet 11 via a protective sheet. Since the protective sheet 51 prevents the outer surface of the cylindrical member 31 or the light control sheet 11 from coming into contact with the lead wires thereof, it is possible to suppress the surface of the light control sheet 11 from being scratched. Further, the entire lead wire or a portion thereof may be protected with a protective sheet over the lead wire.

- By using two or more second easily peelable tapes 16b for one long side 15, the first round sheet portion has two or more second easily peelable tapes on each of the two long sides 15 connected to the short side 14. When the fixed portion 24 is provided, the interval between the second easily peelable tapes 16b is preferably about 60 degrees. More specifically, with respect to the center CL of the cylindrical member 31, the fixing start point 24a of the second easily peelable tape 16b closest to the short side 14 and the fixing start point of the second easily peelable tape 16b next closest to the short side 14. It is preferable that the central angle formed by 24a and 24a is approximately 60 degrees.

- The light control sheet 11 may be provided with a two-dimensional code marked by a laser. The two-dimensional code may be embedded with various manufacturing information such as the manufacturing date of the light control sheet 11, the manufacturing lot, the manufacturing location, the type of manufacturing equipment, the manufacturing equipment, and the model of the light control sheet 11. The two-dimensional code may be placed at the edge of the light control sheet 11 or at the corner of the light control sheet 11. The two-dimensional code may be configured such that a portion of the transparent electrode layers 11c and 11f where the two-dimensional code is located has a different conductivity than the surrounding portions, so that it can be visually recognized. Alternatively, the two-dimensional code may be configured such that a portion of the light control layer 11i where the two-dimensional code is located has a different refractive index from the surrounding portions, thereby making it visible.

- The protective sheet 51 may include aluminum foil that covers the entire outer surface of the light control sheet 11. The protective sheet 51 may be made of only aluminum foil, or may have a multilayer structure of aluminum foil and a cushioning material such as a foam sheet or bubble buffer material. The aluminum foil may be placed on the opposite side of the cushioning material from the light control sheet 11, or may be placed on the same side of the cushioning material as the light control sheet 11.

When the protective sheet 51 includes aluminum foil, it is possible to prevent the light control sheet 11 from being scratched and moisture absorption of the light control sheet 11 is suppressed.
- The rolled body 35 may further include a desiccant. When the protective sheet 51 includes aluminum foil, the desiccant may be placed on the outer surface of the aluminum foil, between the aluminum foil and the cylindrical end 31a of the cylindrical member 31, It may be fixed to the cylindrical member 31 so as to surround the edges of the foil.

When the rolled body 35 includes a desiccant, moisture absorption of the light control sheet 11 is further suppressed. At this time, if the placement of the desiccant is required to improve moisture absorption, the desiccant may be placed over the entire circumferential direction of the wound body 35 so as to cover at least the long sides 15 in the light control sheet 11. good.

[Packaging box 61]
- The corrugated board constituting the packaging box 61 may be a single-layer corrugated board or a corrugated board having a two-layer structure such as ByWall (registered trademark). When the packaging box 61 is required to have improved mechanical strength, the thickness of the corrugated board having a two-layer structure is preferably 10 mm or more.

- If the packaging box 61 is required to have improved mechanical strength, the bottom surface of the packaging box 61 may be provided with a plurality of girders. The plurality of girders are arranged along the axial direction X and extend in the width direction of the packaging box 61. When the packaging box 61 includes a plurality of girders on the bottom surface, deformation and deterioration of the bottom surface due to the bottom surface of the packaging box 61 coming into contact with the floor surface is suppressed.

- The packaging box 61 may have a rectangular parallelepiped shape and include a peripheral wall rising from the bottom wall of the packaging box 61. The peripheral wall of the packaging box 61 may include a pair of long walls extending in the axial direction X and a pair of short walls extending in the width direction of the packaging box 61. The long wall of the packaging box 61 may be joined to the short wall of the packaging box 61 by a flap.
- The packaging box 61 may be a type A corrugated box whose top wall is formed by a flap, or a type B corrugated box consisting of a body and a lid.

- As shown in FIG. 11, when manufacturing the package 100, the cylindrical member 31 wrapped with the light control sheet 11 is placed not in the packaging box 61 assembled from the blank 71, but in the packaging. The blank 71 may be used before being assembled into the box 61. The blank 71 before being assembled into the packaging box 61 has a plate shape. The blank 71 includes a bottom wall 74 having a rectangular plate shape, short walls 72 and 73 connected to a pair of short sides of the bottom wall 74, a long wall 75 connected to a pair of long sides of the bottom wall 74, and a short wall 72. , 73 are provided.

When manufacturing the package 100, first, the cylindrical member 31 wrapped with the light control sheet 11 is inserted into the cylinder of the cylindrical member 31 by the arm part 77 of a crane extending in the axial direction X of the cylindrical member 31. The cylindrical member 31 into which the arm portion 77 has been inserted is lifted up by a crane and placed on the bottom wall 74 of the blank 71. Note that when the package 100 includes the first fixing member 41 and the second fixing member 42, the cylindrical member 31 has the first fixing member 41 fitted into one cylindrical end 31a and the other cylindrical end 31a. The arm portion 77 is inserted into the cylinder of the cylindrical member 31 with the second fixing member 42 fitted therein.

As shown in FIG. 12, when the cylindrical member 31 is placed on the bottom wall 74 of the blank 71, the arm portion 77 of the crane is pulled out from the inside of the cylindrical member 31. Next, the blank 71 is bent so that the short walls 72 and 73 and the long wall 75 of the blank 71 stand up against the bottom wall 74. The flaps 71F of the short walls 72 and 73 are bent to cover part of the outer surface of the long wall 75 and fixed to the long wall 75 with tape 71T. Note that when the packaging box 61 includes the third fixing member 43 and the fourth fixing member 44, the one short wall 72 and the cylindrical end 31a of the cylindrical member 31 sandwich the third fixing member 43. Two short walls 72 are bent against the bottom wall 74. Further, the other short wall 73 is bent relative to the bottom wall 74 so that the fourth fixing member 44 is sandwiched between the other short wall 73 and the cylinder end 31a of the cylinder member 31. As a result, the light control sheet 11 wrapped around the cylindrical member 31 is housed in a rectangular parallelepiped-shaped housing box having an opening facing the bottom wall. Then, the lid 81 is attached to the storage box so that the rectangular parallelepiped-shaped lid 81 that opens downward closes the opening of the storage box.

According to the above modification example, the effects listed below can be obtained.
(9) When the light control sheet 11 wound in the circumferential direction of the cylindrical member 31 bends with respect to the imaginary straight line extending in the axial direction X, folds and wrinkles are likely to occur in the light control sheet 11. In this regard, since the cylindrical member 31 is transported with the arm portion 77 of the crane inserted into the cylinder of the cylindrical member 31, the cylindrical member 31 itself can easily maintain its shape extending in the axial direction X. As a result, the cylindrical member 31 and the light control sheet 11 that are lifted are suppressed from bending due to their own weight with respect to the imaginary straight line extending in the axial direction X. If the shape of the cylindrical member 31 is such that it can easily maintain its extension in the axial direction X by inserting the arm portion 77, it is possible to suppress the formation of creases in the light control sheet 11.

(10) The lifted cylinder member 31 is placed on the blank 71 before being assembled into the packaging box 61. Therefore, the light control sheet 11 can be prevented from coming into contact with the packaging box 61 compared to the case where the light control sheet 11 is placed inside the assembled packaging box 61. As a result, damage to the light control sheet 11 due to contact with the packaging box 61 can be suppressed.

(11) After the cylindrical member 31 is placed on the blank 71, the packaging box 61 is assembled from the blank 71. Therefore, even if the cylindrical member 31 is arranged such that the crane arm 77 protrudes from the cylindrical end 31a of the cylindrical member 31, the light control sheet 11 can be accommodated in the packaging box 61.

(12) Since the flap 71F of the packaging box 61 is arranged on the outside of the long wall 75, a step corresponding to the thickness of the flap 71F is formed on the outer surface of the packaging box 61 and not on the inner surface of the packaging box 61. . Therefore, the light control sheet 11 is housed in the packaging box 61 so that the outer surface of the light control sheet 11 faces the flat surface that is the inner surface of the long wall 75. As a result, it is possible to prevent the outer surface of the light control sheet 11 from coming into contact with the step of the flap 71F, and furthermore to prevent the light control sheet 11 from being damaged by contact between the light control sheet 11 and the step.

- In the package 100 including the first fixing member 41 fitted into one tube end 31a and the second fixing member 42 fitted into the other tube end 31a, the first easy-peel tape 16a and the second easy-peel tape At least one of the release tape 16b may be omitted. Moreover, at least one of the third easily peelable tape 16c and the fourth easily peelable tape 16d may be omitted. Even with these configurations, it is possible to obtain effects similar to the above (6) and (7).

- The flexible wiring board 12 may include an extending portion 12a extending in the axial direction X from the light control sheet 11. Even with this configuration, effects similar to the above (1) to (12) can be obtained.
Note that the base end portion 12b of the flexible wiring board 12 connected to the light control sheet 11 may be arranged along the axial direction X. The extending portion 12a of the flexible wiring board 12 may be arranged to extend in the circumferential direction of the cylindrical member 31. At this time, a part of the extending portion 12a of the flexible wiring board 12 may be fixed to at least one of the light control sheet 11 and the cylindrical member 31 with the third easily peelable tape 16c. The base end portion 12b of the flexible wiring board 12 may be connected to the first transparent electrode layer 11c or the second transparent electrode layer 11f via an anisotropic conductive agent or the like.

With this configuration, the shape of the flexible wiring board 12 is smaller than that of the cylindrical member 31, compared to the case where the extending portion 12a of the flexible wiring board 12 is arranged to extend in the axial direction X of the cylindrical member 31. It is easy to follow the outer circumferential surface 31b, and the flexible wiring board 12 is not easily lifted up. Since the shape of the flexible wiring board 12 easily follows the outer circumferential surface 31b of the cylindrical member 31, stress that causes the flexible wiring board 12 to peel off from the first transparent electrode layer 11c is applied to the first transparent electrode layer 11c. It is possible to suppress the effect on the connecting portion between the flexible wiring board 12 and the flexible wiring board 12. Furthermore, stress that would cause the flexible wiring board 12 to peel off from the second transparent electrode layer 11f can be suppressed from acting on the connection portion between the second transparent electrode layer 11f and the flexible wiring board 12. As a result, it is possible to prevent the flexible wiring board 12 from peeling off from the first transparent electrode layer 11c due to the packaging of the light control sheet 11, and to prevent the electrical connection between the flexible wiring board 12 and the first transparent electrode layer 11c. The increase in resistance can be suppressed. In addition, the packaging of the light control sheet 11 can suppress the peeling of the flexible wiring board 12 from the second transparent electrode layer 11f, and the electrical connection between the flexible wiring board 12 and the second transparent electrode layer 11f can be suppressed. It is possible to suppress the increase in resistance.

At this time, an easily peelable tape for fixing the connecting portion between the flexible wiring board 12 and the light control sheet 11 may be further provided on at least one of the cylindrical member 31 and the light control sheet. Note that at least one of the first easily peelable tape 16a, the second easily peelable tape 16b, and the third easily peelable tape 16c may be omitted. Further, the fourth easily peelable tape 16d may be omitted. Moreover, at least one of the third fixing member 43 and the fourth fixing member 44 may be omitted.

According to the above embodiments and modified examples, the following technical idea can be derived.
[Additional note 1]
A package in which a light control sheet including a liquid crystal composition encapsulated between two transparent electrode films is wrapped around a cylindrical member, the package comprising:
The cylindrical member is
Two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member are provided on both sides in the axial direction of the cylindrical member,
The package includes:
a packaging box in which the light control sheet wrapped around the cylindrical member is packed;
a first fixing member fitted into one of the cylinder ends;
a second fixing member fitted into the other cylinder end;
The first fixing member and the second fixing member position the light control sheet with respect to the tube member in the axial direction of the tube member, and there is a gap between the inner surface of the packaging box and the light control sheet. form,
a third fixing member that fixes one end of the cylindrical member in the axial direction of the cylindrical member to the packaging box;
further comprising a fourth fixing member that fixes the other end of the cylindrical member in the axial direction of the cylindrical member to the packaging box;
Light control sheet packaging.

According to the light control sheet package described in Supplementary Note 1, the first fixing member and the second fixing member position the light control sheet with respect to the cylindrical member in the axial direction of the cylindrical member. Therefore, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or not, the light control sheet is prevented from moving in the axial direction of the cylindrical member. can. Therefore, it is possible to prevent the outer surface of the n-th turn of the light control sheet from rubbing against the inner surface of the n+1-th turn of the light control sheet.

Furthermore, the third fixing member and the fourth fixing member position the tubular member relative to the packaging box in the axial direction of the tubular member. Therefore, the light control sheet wrapped around the tube member moves in the axial direction of the tube member together with the tube member, and the light control sheet wrapped around the tube member moves relative to the tube member in the packaging box. The axial movement of the cylindrical member within the cylindrical member can be suppressed. Therefore, it is possible to suppress the light control sheet from shifting in the axial direction of the cylindrical member with respect to the packaging box.

[Additional note 2]
A package in which a light control sheet including a liquid crystal composition encapsulated between two transparent electrode films is wrapped around a cylindrical member, the package comprising:
A first transparent electrode film, which is one of the transparent electrode films, includes a first transparent electrode layer,
The light control sheet includes a flexible wiring board in which a portion connected to the first transparent electrode layer extends in the axial direction of the cylindrical member,
The flexible wiring board is
An extending portion extending in the circumferential direction of the cylindrical member from a portion connected to the first transparent electrode layer, wherein a part of the extending portion is easily connected to at least one of the cylindrical member and the light control sheet. the extension portion being secured by a release tape;
Light control sheet packaging.

According to the light control sheet package described in Appendix 2, the extending portion of the flexible wiring board is arranged so as to extend in the circumferential direction of the cylindrical member. Moreover, the extending portion of the flexible wiring board is connected to the first transparent electrode layer along the axial direction of the cylindrical member. For this reason, the shape of the flexible wiring board is fixed and easier to follow the outer circumferential surface of the cylindrical member, compared to the case where the extending portion of the flexible wiring board is arranged to extend in the axial direction of the cylindrical member. Since the shape of the flexible wiring board easily follows the outer circumferential surface of the cylindrical member, stress that causes the flexible wiring board to separate from the first transparent electrode layer is applied to the first transparent electrode layer and the flexible wiring board. It is possible to suppress the effect on the connecting part. As a result, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or the light control sheet is not fixed to the outer peripheral surface of the cylindrical member, the flexible wiring board is Peeling from the transparent electrode layer can be suppressed. Further, it is possible to suppress an increase in electrical resistance between the flexible wiring board and the first transparent electrode layer.

[Additional note 3]
A package in which a light control sheet including a liquid crystal composition encapsulated between two transparent electrode films is wrapped around a cylindrical member, the package comprising:
The cylindrical member is
Two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member are provided on both sides in the axial direction of the cylindrical member,
The package includes:
a packaging box in which the light control sheet wrapped around the cylindrical member is packed;
a first fixing member fitted into one of the cylinder ends;
a second fixing member fitted into the other cylinder end;
The first fixing member and the second fixing member position the light control sheet with respect to the tube member in the axial direction of the tube member, and there is a gap between the inner surface of the packaging box and the light control sheet. form,
A flap constituting the packaging box is arranged on an outer surface of the packaging box,
Light control sheet packaging.

According to Appendix 3, since the flaps that make up the packaging box are arranged on the outer surface of the packaging box, a step corresponding to the thickness of the flap is formed on the outer surface of the packaging box and not on the inner surface of the packaging box. . Therefore, the light control sheet is housed in the packaging box such that the outer surface of the light control sheet faces the flat surface that is the inner surface of the packaging box. As a result, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or not, the outer surface of the light control sheet comes into contact with the step of the flap. can be suppressed. In addition, damage to the light control sheet due to contact between the light control sheet and the step can be suppressed.

[Additional note 4]
A liquid crystal composition is encapsulated between two transparent electrode films so that two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member are formed on both sides in the axial direction of the cylindrical member. Wrapping the provided light control sheet around the cylindrical member;
By fitting a first fixing member into one of the cylindrical ends of the cylindrical member wrapped with the light control sheet and fitting a second fixing member into the other cylindrical end, the cylindrical member is fixed in the axial direction. positioning the light control sheet with respect to the cylindrical member;
By arranging the first fixing member and the second fixing member fitted in the cylindrical member on the bottom wall of the packaging box in the blank before being assembled into a packaging box, the bottom of the packaging box in the blank can be fixed. forming a gap between the wall and the light control sheet;
assembling the packaging box by folding the blank so that a peripheral wall surrounding the cylindrical member rises from a bottom wall of the blank;
Method of manufacturing packaging.

According to appendix 4, the packaging box is assembled from the blank after the cylindrical member is placed on the blank. When packing the light control sheet, if you put the light control sheet into the inside of the packaging box from the opening of the assembled packaging box, if the light control sheet comes into contact with the corner of the packaging box or the edge that separates the opening, the light control sheet may be damaged. The sheet will be damaged. In this regard, if the packaging box is assembled from the blank after the cylindrical member is placed on the blank, it is possible to prevent the light control sheet from coming into contact with the corner of the packaging box, the edge that partitions the opening, etc. As a result, whether the light control sheet is fixed to the outer peripheral surface of the cylindrical member or the light control sheet is not fixed to the outer peripheral surface of the cylinder member, damage caused by contact between the light control sheet and the packaging box can be avoided. It can be suppressed.

[Additional note 5]
Assembling the packaging box includes folding the flaps of the packaging box so that the flaps constitute an outer surface of the packaging box.
A method for manufacturing the package described in Appendix 4.

11... Light control sheet 11a... First transparent electrode film 11b... First base material 11c... First transparent electrode layer 11d... Second transparent electrode film 11e... Second base material 11f... Second transparent electrode layer 11g... Liquid crystal composition 11h... Sealing part 11i... Light control layer 12... Flexible wiring board 12a... Extension part 12b... Base end part 12c... Tip part 13... Outer periphery part 14... Short side 14a... Corner part 15... Long side 16a... th 1. Easy-peel tape 16b...Second easy-peel tape 16c...Third easy-peel tape 16d...Fourth easy-peel tape 21...Winding start part 23...Fixed part 24...Fixed part 24a...Fixing start point 24b...Fixing end Point 25... End of winding 31... Cylinder member 31a... Cylinder end 31b... Outer peripheral surface 31c... One end 31d... Other end 32... Through hole 35... Wound body 41... First fixing member as a position regulating member 42... Second fixing member as a position regulating member 43... Third fixing member 44... Fourth fixing member 45... First hole 46... Second hole 51... Protective sheet 61... Packing box 61a... Inner wall 61b... Inner wall 61c ...Inner bottom 100...Package Δ...Gap θ1...First angle θ2...Second angle CL...Center Fa...Adhesive force Fb...Adhesive force Fc...Bending force Fd1a...Turning up force Fd1b...Turning up force Fd2a...Turning up force Fd2b...Turning up force X...Axis direction Y...Circumferential direction

Claims (13)

A package in which a light control sheet including a liquid crystal composition encapsulated between two transparent electrode films is wrapped around a cylindrical member, the package comprising:
The cylindrical member is
Two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member are provided on both sides in the axial direction of the cylindrical member,
The light control sheet is
comprising a winding start portion that is a portion that is in contact with the outer peripheral surface of the cylindrical member and starts winding around the cylindrical member;
The winding start part is
one short side of the light control sheet;
a fixed portion located away from the short side on each of the two long sides connected to the short side,
The short side is fixed to the outer circumferential surface of the tube member by a first easily peelable tape, and each of the two fixed parts is fixed to the outer circumferential surface of the tube end by a second easily peelable tape. sheet packaging. Among the fixed parts, a point farthest from the short side is a fixing end point,
A central angle formed by the short side and the fixed end point with respect to the center of the cylindrical member is a first angle,
The light control sheet package according to claim 1, wherein the first angle is 69 degrees or less. Among the fixed parts, a point farthest from the short side is a fixing end point,
A central angle formed by the short side and the fixed end point with respect to the center of the cylindrical member is a first angle,
The light control sheet package according to claim 1 or 2, wherein the first angle is 46 degrees or more. Among the fixed parts, a point closest to the short side is a fixing start point,
A central angle formed by the short side and the fixing start point with respect to the center of the cylindrical member is a second angle,
The light control sheet package according to claim 1 or 2, wherein the second angle has a size of 23 degrees or more. A first transparent electrode film, which is one of the transparent electrode films, includes a first transparent electrode layer,
The light control sheet further includes a flexible wiring board connected to the first transparent electrode layer,
The flexible wiring board is
comprising an extending portion extending from the short side of the light control sheet toward the outside of the first transparent electrode film,
The extension part is
The light control sheet package according to claim 1 or 2, wherein the light control sheet is fixed to at least one of the cylindrical member and the light control sheet with a third easily peelable tape. The package includes:
a first fixing member fitted into one of the cylinder ends;
a second fixing member fitted into the other cylinder end;
The light control sheet package according to claim 1 or 2, wherein the first fixing member and the second fixing member position the light control sheet with respect to the cylinder member in the axial direction of the cylinder member. The package includes:
a packaging box in which the light control sheet wrapped around the cylindrical member is packed;
a third fixing member that fixes one end of the cylindrical member in the axial direction of the cylindrical member to the packaging box;
The light control sheet package according to claim 1 or 2, further comprising a fourth fixing member that fixes the other end of the cylindrical member in the axial direction of the cylindrical member to the packaging box. A first transparent electrode film, which is one of the transparent electrode films, includes a first transparent electrode layer,
The light control sheet includes a flexible wiring board in which a portion connected to the first transparent electrode layer extends in the axial direction of the cylindrical member,
The flexible wiring board is
An extending portion extending in the circumferential direction of the cylindrical member from a portion connected to the first transparent electrode layer, wherein a part of the extending portion is easily connected to at least one of the cylindrical member and the light control sheet. The light control sheet package according to claim 1 or 2, comprising the extension portion fixed with a release tape. a packaging box in which the light control sheet wrapped around the cylindrical member is packed;
a first fixing member fitted into one of the cylinder ends;
a second fixing member fitted into the other cylinder end;
The first fixing member and the second fixing member position the light control sheet with respect to the tube member in the axial direction of the tube member, and there is a gap between the inner surface of the packaging box and the light control sheet. form,
The light control sheet package according to claim 1 or 2, wherein the flaps constituting the packaging box are arranged on the outer surface of the packaging box. The light control sheet package according to claim 1 or 2, wherein the light control sheet includes a two-dimensional code marked by a laser. packaging box and
a cylindrical member accommodated in the packaging box;
A light control sheet package comprising two transparent electrode films and a liquid crystal composition sealed between the transparent electrode films, and a light control sheet that is wound one or more times in the circumferential direction of the cylindrical member. And,
A portion of the light control sheet that is in contact with the outer peripheral surface of the cylindrical member is a first round sheet portion,
The first round sheet portion includes two or more fixed portions arranged in the circumferential direction of the cylindrical member on the outer surface of the light control sheet,
Each of the fixed parts is fixed to the outer peripheral surface of the cylindrical member with an easily peelable tape,
The cylindrical member includes cylindrical ends exposed from the light control sheet on both sides in the axial direction of the cylindrical member,
The light control sheet, which is located between the outer circumferential surface of each of the tube ends and the inner surface of the packaging box, is spaced from the inner surface of the packaging box and is wrapped around the tube member, and is The light control sheet package further includes a pair of position regulating members that position the light control sheet with respect to the cylindrical member. A liquid crystal composition is encapsulated between two transparent electrode films so that two cylindrical ends exposed from the light control sheet wrapped around the cylindrical member are formed on both sides in the axial direction of the cylindrical member. A method for manufacturing a package, the method comprising: wrapping the light control sheet around the cylindrical member,
The light control sheet is
comprising a winding start portion that is a portion that is in contact with the outer peripheral surface of the cylindrical member and starts winding around the cylindrical member;
The winding start part is
one short side of the light control sheet;
a fixed portion located away from the short side on each of the two long sides connected to the short side,
fixing the short side to the outer peripheral surface of the cylindrical member with a first easily peelable tape;
further comprising: fixing each of the two fixed parts to the outer circumferential surface of the cylinder end with a second easily peelable tape;
Method of manufacturing packaging. By fitting a first fixing member into one of the cylindrical ends of the cylindrical member wrapped with the light control sheet and fitting a second fixing member into the other cylindrical end, the cylindrical member is fixed in the axial direction. positioning the light control sheet with respect to the cylindrical member;
By arranging the first fixing member and the second fixing member fitted in the cylindrical member on the bottom wall of the packaging box in the blank before being assembled into a packaging box, the bottom of the packaging box in the blank can be fixed. forming a gap between the wall and the light control sheet;
The method for manufacturing a package according to claim 12, further comprising: assembling the packaging box by folding the blank so that a peripheral wall surrounding the cylindrical member rises from a bottom wall of the blank.

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