Method for manufacturing shielding material unit roll, and fabric set for light-control vertical blind

Abstract

To provide a method for manufacturing a shielding material unit roll capable of suppressing the formation of a curl habit at the lower end of a fabric while suppressing the formation of a mark of a hanger member on the fabric.SOLUTION: There is provided a method of manufacturing a shielding material unit roll 8 in which a shielding material unit 6U including hanger members 61, 62 at an upper end portion of a fabric including a drape portion and a lace portion is wound around a cylindrical body 9 having a slit 90 extending in an axial direction as a winding core such that the upper end portion is arranged inside the cylindrical body 9, the fabric is pulled out from the slit 90, and a lower end portion of the fabric is on an outer peripheral side.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to a shielding material formed by connecting a plurality of shielding material units. [Background technology]

[0002] Conventionally, there is a shielding material that is suspended from a runner that is movably provided on a hanger rail and is configured by connecting a plurality of shielding material units to each other. For example, Patent Document 1 discloses a shielding material that connects shielding material units (blackout curtain parts) by fixing hanger members (connectors) for suspending the shielding material to each other. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 2018-509190 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, such a shielding material unit is usually formed into a shielding material unit roll by winding a thick hanger member around a winding core so that the thick hanger member forms the outer periphery, and is packaged so that the hanger member does not leave marks on the fabric. However, when winding so that the upper end of the fabric where the hanger member is provided forms the outer periphery, the lower end of the fabric inevitably becomes the winding core side (center side), and there is a risk that the lower end will have a tendency to curl when the fabric is hung up after being unpacked.

[0005] The present invention has been made in consideration of these circumstances, and provides a method for manufacturing a shielding material unit roll that can prevent the hanger member from leaving marks on the fabric while also preventing the lower end of the fabric from becoming curled. [Means for solving the problem]

[0006] According to the present invention, the following inventions are provided. [1] A method for manufacturing a shielding material unit roll, in which a shielding material unit having a hanger member at the upper end of a fabric having a drape portion and a lace portion is wound around a cylindrical body having a slit extending in the axial direction, the upper end is placed inside the cylindrical body, the fabric is pulled out from the slit, and the lower end of the fabric is wound around the cylindrical body so that it faces the outer periphery. [2] A method for manufacturing a shielding material unit roll according to [1], comprising stacking a plurality of the shielding material units, placing the upper end portions of the stacked shielding material units inside the cylindrical body, and winding the shielding material units in the stacked state. [3] A method for manufacturing a shielding material unit roll as described in [2], wherein the spacing between the slits is narrower than the thickness of the upper ends of the plurality of shielding material units in the stacked state, and is wider than the thickness of the fabric excluding the upper ends of the plurality of shielding material units in the stacked state. [4] A method for manufacturing a shielding material unit roll as described in [3], wherein the slits are continuous to the end of the cylindrical body in the axial direction, and the upper end is slid from the end along the axial direction to be positioned inside the cylindrical body. [5] A method for manufacturing a shielding material unit roll according to any one of [1] to [4], wherein the cylindrical body has an inner diameter that is larger than the length of the hanger member in the up-down direction. [6] A method for manufacturing a shielding material unit roll as described in [5], wherein an interlining is formed on the upper end side of the fabric, extending in the left-right direction to a position lower than the hanger member, and the inner diameter of the cylindrical body is wider than the vertical length of the interlining. [7] A fabric set for a light-controlling vertical blind in which a predetermined number of shielding material units are packed in one or more boxes, wherein each of the predetermined number of shielding material units has a hanger member at the upper end of a fabric having a drape portion and a lace portion, and wherein a plurality of the shielding material units are connected in the left-right direction by the hanger member and are suspended and supported by runners that are freely movable on a hanger rail to form the light-controlling vertical blind, wherein the predetermined number of shielding material units are wound around a cylindrical body having a slit extending in the axial direction as a core, and one or more of the shielding material units are wound around the cylindrical body so that the upper end is placed inside the cylindrical body, the fabric is pulled out from the slit, and the lower end of the fabric is on the outer periphery to form a shielding material unit roll, and wherein a plurality of the shielding material unit rolls are packed in the one or more boxes. [Effects of the Invention]

[0007] According to the present invention, by placing the upper end equipped with the hanger member inside the cylindrical body and wrapping the fabric so that the lower end is on the outer periphery, it is possible to prevent the hanger member from leaving marks on the fabric while also preventing the lower end of the fabric from developing a curling tendency. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1A is a front view of a light control vertical blind 100 equipped with a shading material 6 according to one embodiment of the present invention, and FIG. 1B is a left side view of the light control vertical blind 100. As shown in FIG. [Figure 2] FIG. 2 is a plan view of the light-controlling vertical blind 100 of FIG. [Figure 3] FIG. 2 is a perspective view showing the runner 5 and the screen hanger 10 of the light-controlling vertical blind 100 of FIG. 1. [Figure 4] 4A is a front view of the upper part of the shielding material unit 6U of the shielding material 6 of FIG. 1, and FIG. 4B is an explanatory diagram showing the shielding material unit 6U in the state before assembly of FIG. 4A. [Figure 5] FIG. 4 is an exploded view of the screen hanger 10 of FIG. 3. [Figure 6]6A is a perspective view of a first hanger member 61 of the shielding material unit 6U of FIG. 3, and FIG. 6B is an exploded perspective view of a second hanger member 62 thereof. [Figure 7] FIG. 7A is a plan view showing the state when the shading material 6 of the light control vertical blind 100 shown in FIG. 1A is in an open state, and FIG. 7B is a plan view showing the state when the shading material 6 is in a closed state. [Figure 8] FIG. 4A is a front view of the upper part of the left-end shielding material unit 6UL, and FIG. 8B is a front view of the upper part of the right-end shielding material unit 6UR. [Figure 9] 4 is a side view showing a shielding material unit roll 8 in which the shielding material units 6U of FIG. 3 are wound around a cylindrical body 9. FIG. [Figure 10] FIG. 10 is a perspective view of the cylindrical body 9 in FIG. [Figure 11] 10 is an explanatory diagram showing a method for manufacturing the shielding material unit roll 8 of FIG. 9. [Figure 12] 12A and 12B are explanatory diagrams showing a fabric set S for a light-controlling vertical blind, which is configured by packing a plurality of shielding material unit rolls 8 in a box B. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] The following describes embodiments of the present invention. The various features shown in the following embodiments can be combined with each other. Furthermore, each feature can be an independent invention.

[0010] 1. Overall configuration of the dimming vertical blind 100 A dimming vertical blind 100 as a shading device equipped with a shading material 6 according to one embodiment of the present invention comprises, as shown in Figures 1A to 2, a hanger rail 1, a tilt axis 2, a tilt operation rod 3, an operation cord 4, a runner 5, and a shading material 6 consisting of a plurality of shading material units 6U.

[0011] As shown in Fig. 1A, the clothes hanger rail 1 is configured in a case shape and is installed, for example, on the wall, ceiling, or window frame of a building. A tilt shaft 2 and multiple runners 5 are housed inside the clothes hanger rail 1. Multiple runners 5 are attached to the tilt shaft 2. When the tilt shaft 2 rotates, each runner 5 rotates.

[0012] As shown in Fig. 1A, a tilt operation rod 3 and an operation cord 4 are arranged on the left side, which is one end in the width direction of the hanger rail 1. The tilt operation rod 3 is configured to rotate the tilt shaft 2, and by operating the tilt operation rod 3 to rotate the tilt shaft 2, the shaft portion 5c of each runner 5 shown in Fig. 3 rotates.

[0013] The operating cord 4 is configured in a ring shape. As shown in FIGS. 1A and 1B, the operating cord 4 hangs down from the left side of the hanger rail 1 and can be grasped by a user. The operating cord 4 is connected to a leading runner 5A (see FIG. 1A), and each runner 5 is connected via a thin, elongated spacer 5s (see FIGS. 2 and 3). For example, when a user operates the operating cord 4 to pull out the shielding material 6, the leading runner 5A is pulled out by the operating cord 4 and moves to the right side, which is the other end side in FIG. 1A. Thereafter, the following runners 5 move sequentially to the right at equal intervals via the spacers 5s. Conversely, when a user operates the operating cord 4 to fold the shielding material 6, the leading runner 5A is pulled back by the operating cord 4 and moves to the left side in FIG. 1A, and the following runners 5 also move to the left side. In this way, the runners 5 are provided on the hanger rail 1 so as to be freely movable in the left-right direction.

[0014] As shown in Fig. 1A, the runner 5 is attached to the tilt shaft 2 and has the function of transmitting the rotation of the tilt shaft 2 to each shielding material unit 6U via a screen hanger 10 (described later). As shown in Fig. 3, the runner 5 has a case portion 5a, a gear mechanism portion 5b, a shaft portion 5c, and a hanging portion 5d.

[0015] The case 5a is provided with a gear mechanism 5b and a shaft 5c. The gear mechanism 5b has a gear into which the tilt shaft 2 is inserted and a gear that transmits the rotation of this gear to the shaft 5c, and when the tilt shaft 2 rotates, the various gears of the gear mechanism 5b rotate, causing the shaft 5c to rotate. The rotation of the shaft 5c then causes the shielding material unit 6U to rotate. The shaft 5c is provided to protrude from the case 5a, and a hanging portion 5d is formed at the lower end of the shaft 5c.

[0016] 2. Structure of the shielding material 6 In the present embodiment, as shown in Figures 1A and 2, the shielding material 6 is configured by connecting a plurality of shielding material units 6U to one another. As shown in Figures 4A and 4B, the shielding material unit 6U includes a shielding member 60 as fabric, and a first hanger member 61 and a second hanger member 62 as hanger members. The first hanger member 61 is attached to an upper portion of the shielding member 60 at one end in the width direction. The second hanger member 62 is attached to an upper portion of the shielding member 60 at the other end in the width direction. As shown in Figure 2, the first hanger member 61 of one of the shielding material units 6U and the second hanger member 62 of the other of the adjacent shielding material units 6U are fixed together, thereby connecting the respective shielding material units 6U to one another.

[0017] Of the entire vertical length of the shielding material unit 6U, the portion to which the first hanger member 61 and the second hanger member 62 are attached is referred to as the upper end 6U1, and the opposite end is referred to as the lower end 6U2 (see FIGS. 9 and 11).

[0018] Each component included in the shielding unit 6U will be described in more detail below.

[0019] <Shielding member 60> 1B, 4A, and 4B, the shielding member 60 includes a lace portion 60a and a pair of drape portions 60b, and the lace portion 60a is provided between the pair of drape portions 60b. The shielding member 60 is made of fabric, and the lace portion 60a and the pair of drape portions 60b are integrally formed by sewing.

[0020] 4B, a folded portion 60c that protrudes above the lace portion 60a is formed at the top of each drape portion 60b during the manufacturing process. The shielding member 60 is then folded back at the folded portion 60c to the rear side, and the first hanger member 61 and the second hanger member 62 are disposed between the drape portion 60b and the folded portion 60c, and are then attached with double-sided tape or adhesive, thereby fixing the first hanger member 61 and the second hanger member 62. Here, the shielding member 60 of this embodiment is configured so that the first hanger member 61 is fixed to the upper left side when viewed from the front, and the second hanger member 62 is fixed to the upper right side of the first hanger member 61, but these may be fixed in reverse.

[0021] Additionally, holes 60d are formed in the drape portion 60b and the folded portion 60c to expose to the outside a first fixing member 61b of the first hanger member 61 and a second fixing member 62b of the second hanger member 62, which will be described later. Also, long holes 60e are formed in the drape portion 60b and the folded portion 60c, continuing beyond the folded portion, to accommodate the suspended portion 61c of the first hanger member 61.

[0022] It should be noted that the first hanger member 61 and the second hanger member 62 can also be fixed to the shielding member 60 by bag stitching, rather than by adhering to the drape portion 60b and the folded portion 60c. However, bag stitching can cause the fabric to swell, increasing the gap between the pieces of fabric, which can impair the design, so it is preferable to use double-sided tape or the like to attach them.

[0023] 4A and 4B, the shielding material unit 6U of this embodiment has interlining 60f provided across the upper end of the shielding member 60 in the left-right direction so as to straddle the lace portion 60a and the pair of drape portions 60b. As shown in Fig. 4A, the length L1 in the up-down direction of the interlining 60f is longer than the length L2 in the up-down direction of the first hanger member 61 and the second hanger member 62. Furthermore, the interlining 60f also has through-holes (not shown) provided at positions corresponding to the holes 60d and the elongated holes 60e of the drape portions 60b.

[0024] <First hanger member 61> As shown in FIGS. 5 and 6A, the first hanger member 61 includes a first base member 61a and a pair of first fixing members 61b that are separate from the first base member 61a and are attached to the first base member 61a. The first base member 61a is thin and molded from, for example, resin. The first base member 61a is formed with a suspended portion 61c for hanging from the hanging portion 5d of the runner 5 and a pair of through-holes 61d (see FIG. 6A) for fixing the pair of first fixing members 61b, at approximately the same height. As a result, the suspended portion 61c and the pair of first fixing members 61b are located at approximately the same height. The first base member 61a is also hollowed out to the extent that it does not impair its strength as a hanger.

[0025] 6A, the first fixing member 61b is composed of a clamp 61b1 having a protruding portion of a so-called American hook (also called a ring snap) and a claw 61b2. The first fixing member 61b is attached to the through-hole 61d of the first base member 61a by sandwiching the first base member 61a between the clamp 61b1 and the claw 61b2.

[0026] <Second hanger member 62> On the other hand, as shown in FIGS. 5 and 6B, the second hanger member 62 includes a second base member 62a and a pair of second fixing members 62b that are separate from the second base member 62a and are attached to the second base member 62a. The second base member 62a is thin and molded from, for example, resin. A pair of through-holes 62d (see FIG. 6B) for fixing the pair of second fixing members 62b are formed in the second base member 62a at approximately the same height. The second base member 62a is also hollowed out to the extent that it does not impair its strength as a hanger. The second base member 62a does not have a suspended portion for hanging from the suspending portion 5d of the runner 5. Instead, a notch 62c is formed at a position corresponding to the suspended portion 61c of the first base member 61a to prevent interference with the suspending portion 5d. In this embodiment, the first base member 61a and the second base member 62a differ only in whether or not they have a suspended portion, and the other configurations are the same.

[0027] 6B, the second fixing member 62b is composed of a spring 62b1 having a recessed portion of an American hook and a claw 62b2 (the same as the claw 61b2 of the first fixing member 61b). The second fixing member 62b is attached to the position of the through-hole 62d of the second base member 62a so that the second base member 62a is sandwiched between the spring 62b1 and the claw 62b2.

[0028] The first fixing member 61b and the second fixing member 62b that constitute the American hook may be made of metal or resin.

[0029] <Function as Screen Hanger 10> 3 and 5, the first hanger member 61 and the second hanger member 62 configured as described above are respectively fixed to a pair of first fixing members 61b and a pair of second fixing members 62b that form American hooks, thereby forming a screen hanger 10 that is hung from the hanging portion 5d of the runner 5 and supports the shielding member 60. More specifically, the screen hanger 10 of this embodiment is made up of a second hanger member 62 provided on the right side of the left shielding material unit 6U of adjacent shielding material units 6U, and a first hanger member 61 provided on the left side of the right shielding material unit 6U.

[0030] In the light-controlling vertical blind 100 according to this embodiment, when the shaft portion 5c of each runner 5 is rotated by operating the tilt control rod 3 described above, the screen hanger 10 rotates, causing the shading material 6 (each shading material unit 6U) to transition (rotate) between the open state and the closed state (see FIGS. 7A and 7B). With this configuration, the light-controlling vertical blind 100 according to this embodiment allows light to be projected through the lace portion 60a in the open state, and in the closed state, the drape portion 60b overlaps to form a blackout curtain, making light control possible. Furthermore, when the runner 5 moves to the right or left, the screen hanger 10 moves to the right or left, and the shading material 6 is pulled out or folded in.

[0031] 3. Other configurations of the shielding material 6 The shielding material 6 of this embodiment is constructed by connecting a plurality of shielding material units 6U having the above-described configuration to the runners 5 of the hanger rail 1 in a suspended manner.

[0032] Specifically, the suspended portion 61c of the first hanger member 61 of each shielding material unit 6U is hooked onto the hanging portion 5d of the runner 5, and the first fixing member 61b of the first hanger member 61 and the second fixing member 62b of the second hanger member 62 of the left-side shielding material unit 6U are fixed. By performing this work in sequence, the shielding material 6 is constructed.

[0033] In this embodiment, as shown in Figures 2 and 8A, the shielding material unit 6U arranged on the far left (hereinafter referred to as the left-end shielding material unit 6UL) has a first hanger member 61 (hereinafter referred to as the left-end first hanger member 61L) on the left side that does not have a first fixing member 61b and is made up of only a first base member 61a. Also, as shown in Figures 2 and 8B, the shielding material unit 6U arranged on the far right (hereinafter referred to as the right-end shielding material unit 6UR) has a first hanger member 61 (hereinafter referred to as the right-end first hanger member 61R) on the right side that has a suspended portion 61c instead of the second hanger member 62. However, the right-end first hanger member 61R also does not have a first fixing member 61b and is made up of only a first base member 61a.

[0034] On the other hand, when removing the shielding material 6 of this embodiment from the runner 5, the opposite procedure is followed: the first fixing member 61b and the second fixing member 62b of the adjacent shielding material unit 6U are released from their respective fixing members, and the hanging portion 61c of the first hanger member 61 of each shielding material unit 6U is removed from the hanging portion 5d of the runner 5.

[0035] 4. Shielding material unit roll 8 Incidentally, the shading material 6 of this embodiment is shipped and transported in a package with each shading material unit 6U separated, and is then unpacked at the installation location of the light-controlling vertical blind 100. Specifically, as shown in Fig. 9, the shading material units 6U of this embodiment are packaged as a shading material unit roll 8 by overlapping and winding a plurality of units around a cylindrical body 9, which is a winding core. Hereinafter, this shading material unit roll 8 will be described in detail.

[0036] <Shielding material unit roll 8> In this embodiment, the shielding material unit roll 8 is composed of a cylindrical body 9 and a predetermined number (four in the illustrated example) of shielding material units 6U wound around the cylindrical body 9 as a winding core. The number of shielding material units 6U to be stacked and wound around one cylindrical body 9 is adjusted appropriately depending on the vertical length of the shielding material units 6U (shielding members 60), etc.

[0037] The cylindrical body 9 of this embodiment is formed in a cylindrical shape as shown in FIG. 10. The cylindrical body 9 is preferably made of polyvinyl chloride, but may be made of other materials, such as a cardboard tube, as long as it is lightweight and has sufficient rigidity to maintain its shape. The cylindrical body 9 is configured so that its inner diameter d (see FIG. 10) is greater than the vertical length L1 (see FIG. 4A) of the interlining 60f. Therefore, the inner diameter d of the cylindrical body 9 is greater than the vertical length L2 (see FIG. 4A) of the first hanger member 61 and the second hanger member 62. Furthermore, the axial (i.e., longitudinal) length L3 (see FIG. 10) of the cylindrical body 9 is configured to be equal to or slightly longer than the width L4 of the shielding member 60. This allows the left and right ends of the shielding member 60 to be protected during transport of the shielding material unit roll 8, etc.

[0038] Additionally, the cylindrical body 9 of this embodiment has slits 90 that extend in the axial direction (see arrow A) and continue to both ends in the axial direction, as shown in Fig. 10. As shown in Fig. 10 and Fig. 11, the interval G (length of the gap) of the slits 90 is narrower than the thickness t1 of the upper end portion 6U1 of the shielding material unit 6U in a state where a predetermined number of sheets are stacked, and is wider than the thickness t2 of the shielding member 60 excluding the upper end portions 6U1 of the plurality of shielding material units 6U in a state where a predetermined number of sheets are stacked.

[0039] <Method of manufacturing the shielding material unit roll 8> A manufacturing method (packaging method) for the shielding material unit roll 8 will be specifically described below. To manufacture the shielding material unit roll 8, first, a predetermined number of shielding material units 6U are spread out so as not to wrinkle the shielding member 60, and then the edges of the fabric are aligned and placed one on top of the other. Next, the upper end portions 6U1 of the stacked shielding material units 6U are slid from the end of the slit 90 along the axial direction, and the upper end portions 6U1 are placed inside the cylindrical body 9. At this time, the interlining 60f of the shielding material units 6U is also placed inside the cylindrical body 9, and the left and right ends of the shielding material units 6U are also placed inside the cylindrical body 9 so as to fit within the axial length of the cylindrical body 9.

[0040] Next, the cylindrical body 9 is rotated, and a predetermined number of shielding members 60 of the shielding material units 6U are wound around the cylindrical body 9 (see arrow R in FIG. 11). Note that by attaching both ends of the shielding members 60 to the cylindrical body 9 with masking tape or the like when the first turn is halfway wrapped, it is possible to prevent misalignment between the shielding material units 6U and the cylindrical body 9.

[0041] Then, the shielding member 60 is wound around the cylindrical body 9 up to its lower end 6U2 to complete the shielding material unit roll 8. It is preferable that the completed shielding material unit roll 8 is wrapped in bubble cushioning material and then wrapped in a band that can be fastened with a hook-and-loop fastener to prevent the load from shifting.

[0042] <Fabric set S for dimming vertical blinds> 12A and 12B, a plurality of shading material unit rolls 8 manufactured as described above are bundled together so that the number of shading material units 6U required to constitute the light-controlling vertical blind 100 (a predetermined number) is achieved, and the bundled shading material units 6U are packed into one or more boxes B (for example, cardboard boxes) as a fabric set S for light-controlling vertical blinds. That is, the fabric set S for light-controlling vertical blinds is a set of shading material units 6U configured by packing the required number (a predetermined number) of shading material units 6U into boxes B. The fabric set S for light-controlling vertical blinds configured in this manner is unpacked at the installation site of the light-controlling vertical blind 100.

[0043] 5. Effects (1) In the manufacturing method of the shielding material unit roll 8 according to this embodiment, the upper end portion 6U1 equipped with the hanger members 61, 62 is placed inside the cylindrical body 9, and the shielding member 60 is wrapped around the cylindrical body 9. This makes it possible to prevent the hanger members 61, 62 from leaving marks on the shielding member 60 while also preventing the lower end portion 6U2 of the shielding member 60 from developing a curling tendency.

[0044] (2) By stacking multiple shielding material units 6U and winding them around a cylindrical body 9 to produce a shielding material unit roll 8, it is possible to reduce the number of cylindrical bodies 9 required for the fabric set S for dimming vertical blinds compared to winding each shielding member 60 around the cylindrical body 9 one by one, thereby reducing waste.

[0045] (3) The interval G (length of the gap) of the slits 90 in the cylindrical body 9 is narrower than the thickness t1 of the upper end 6U1 of the shielding material unit 6U when a predetermined number of sheets are stacked, and is wider than the thickness t2 of the shielding member 60 excluding the upper end 6U1 of the plurality of shielding material units 6U when a predetermined number of sheets are stacked. As a result, the upper end 6U1 of the shielding material unit 6U when a predetermined number of sheets are stacked is positioned inside the cylindrical body 9, making it possible to suppress misalignment when the shielding member 60 is wound.

[0046] (4) By sliding the upper end portion 6U1 of the shielding material unit 6U along the axial direction from the end of the slit 90 and positioning the upper end portion 6U1 inside the cylindrical body 9, the upper end portion 6U1 can be easily accommodated inside the cylindrical body even if the spacing between the slits 90 is narrower than the thickness t1 of the upper end portion 6U1 of the shielding material unit 6U when a predetermined number of sheets are stacked.

[0047] (5) Since the inner diameter d (see FIG. 10) of the cylindrical body 9 is configured to be wider than the vertical length L2 (see FIG. 4A) of the first hanger member 61 and the second hanger member 62, it is possible to prevent these hanger members 61, 62 from leaving marks on the shielding member 60.

[0048] (6) Since the inner diameter d (see Figure 10) of the tubular body 9 is configured to be wider than the vertical length L1 (see Figure 4A) of the interlining 60f, it is possible to suppress deformation of the interlining 60f when the shielding member 60 is wound.

[0049] 6. Variations The present invention can also be implemented in the following aspects.

[0050] In the above embodiment, a shielding material unit roll is constructed by winding a plurality of shielding material units 6U in a stacked state around a cylindrical body 9. However, a cylindrical body 9 may be prepared for each shielding material unit 6U, and each shielding material unit 6U may be wound around the cylindrical body 9. Even with this manufacturing method for the shielding material unit roll 8, it is possible to prevent the shielding member 60 (fabric) from being left with marks from the hanger members 61, 62 when the package is subsequently unpacked, and also to prevent the lower end of the shielding member 60 from becoming curled.

[0051] In the above embodiment, a plurality of shielding material units 6U are wound around a cylindrical body 9 to form a shielding material unit roll 8, but the shielding material units 6U may be wound directly without using a cylindrical body 9 (winding core). Even with this manufacturing method for the shielding material unit roll 8, it is possible to prevent the lower end of the shielding member 60 (fabric) from becoming curled when the package is subsequently unpacked.

[0052] In the above embodiment, the shielding member 60 (fabric) of the shielding material unit 6U includes a lace portion 60a and a pair of drape portions 60b, with the lace portion 60a being disposed between the pair of drape portions 60b. However, the shielding member 60 only needs to include the lace portion 60a and the drape portions 60b, and does not necessarily have to be disposed between the pair of drape portions 60b. Furthermore, the shielding member 60 (fabric) may be made of a single material as long as it can be wound around the cylindrical body 9 (winding core). Even in these cases, the manufacturing method of the shielding material unit roll 8 according to the present invention can prevent the shielding member 60 (fabric) from being marked by the hanger members 61, 62 during subsequent unpacking, while also preventing the lower end of the shielding member 60 from becoming curled. [Explanation of symbols]

[0053] 1: Clothes rail 2: Tilt axis 3: Tilt control stick 4: Operation code 5: Runner 5A: Leading runner 5a: Case part 5b: Gear mechanism 5c:Shaft part 5d: Hanging part 5s: Spacer 6: Shielding material 6U: Shielding unit 6U1: Upper end 6U2: Bottom end 6UL: Shielding unit 6UL: Left end shielding unit 6UR: Right end shielding unit 6UR: Shielding unit 8: Shielding material unit roll 9: Cylindrical body 10: Screen hanger 60: Shielding member 60a: Lace section 60b: Drape section 60c: Folded part 60d:hole 60e: Long hole 60f: Interlining 61: Hanger parts 61: First hanger member 61L: Left end first hanger member 61R: Right end first hanger member 61a: First base member 61b: First fixing member 61b1: Genko 61b2: Claw 61c: Hanging part 61d: Through hole 62: Hanger parts 62: Second hanger member 62a: second base member 62b: Second fixing member 62b1: Spring 62b2: Claw 62c: Notch 62d: Through hole 90: Slit 100: Dimmable vertical blinds A: Arrow view B: Box S: Fabric set for dimming vertical blinds

Claims

1. A method for manufacturing a shielding material unit roll, in which a shielding material unit having a hanger member at the upper end of a fabric having a drape portion and a lace portion is wound around a cylindrical body having a slit extending in the axial direction as a winding core, the upper end is placed inside the cylindrical body, the fabric is pulled out through the slit, and the lower end of the fabric is wound around the cylindrical body so that it faces the outer periphery.

2. A method for producing a shielding material unit roll according to claim 1, A manufacturing method comprising stacking a plurality of the shielding material units, placing the upper ends of the stacked shielding material units inside the cylindrical body, and rolling up the shielding material units in the stacked state.

3. A method for producing a shielding material unit roll according to claim 2, A manufacturing method in which the spacing between the slits is narrower than the thickness of the upper ends of the multiple shielding material units in the stacked state and wider than the thickness of the fabric excluding the upper ends of the multiple shielding material units in the stacked state.

4. The method for producing a shielding material unit roll according to claim 3, the slit continues to the end of the cylindrical body in the axial direction, The upper end portion is slid from the end portion along the axial direction to be positioned inside the cylindrical body.

5. A method for producing a shielding material unit roll according to any one of claims 1 to 4, The manufacturing method, wherein the cylindrical body has an inner diameter wider than the vertical length of the hanger member.

6. A method for producing a shielding material unit roll according to claim 5, An interlining is formed on the upper end side of the fabric, extending in the left-right direction to a position below the hanger member, The manufacturing method, wherein the inner diameter of the cylindrical body is greater than the vertical length of the interlining.

7. A fabric set for a light-controlling vertical blind, in which a predetermined number of shading material units are packed in one or more boxes, Each of the predetermined number of shielding material units has a hanger member at the upper end of a fabric having a drape portion and a lace portion, and the plurality of shielding material units are connected in the left-right direction by the hanger member and suspended and supported by a runner provided movably on a hanger rail to form the light-controlling vertical blind, the predetermined number of shielding material units are wound around a cylindrical body having a slit extending in the axial direction as a winding core, and one or more shielding material units are wound around the cylindrical body so that the upper end portion is disposed inside the cylindrical body, the fabric is pulled out from the slit, and the lower end portion of the fabric is on the outer periphery side, thereby constituting a shielding material unit roll; A fabric set for a light-controlling vertical blind, in which a plurality of the shading material unit rolls are packed in the one or more boxes.

Images