Roller blinds

Abstract

This invention provides a roll screen that can prevent the reduction in aesthetic appeal caused by the visibility of the fasteners due to the exposure of the winding pipe, using a simpler structure. [Solution] The first and second shielding materials 112 and 113 are equipped with an upper screen stopper plate 115 fixed to their upper ends by staples 114. The winding pipe 120 is equipped with first and second mounting grooves 123 and 124, each having a pair of locking pieces 121 and 122 that protrude from one and the other sides of the winding pipe 120 in the circumferential direction, respectively, so as to be able to lock the upper screen stopper plate 115. The upper screen stopper plate 115 is configured to be able to lock into the first and second mounting grooves 123 and 124 when one of the locking pieces 121 and the staple 114 overlap in the radial direction of the winding pipe 120. Thus, the reduction in aesthetic appeal that occurs when the fastener becomes visible due to the exposure of the winding pipe can be prevented with a simple structure.

Description

Technical Field

[0001] The present invention relates to a roll screen.

Background Art

[0002] As a conventional roll screen, the one disclosed in Japanese Unexamined Patent Application Publication No. 2015-200066 (Patent Document 1) is known. The roll screen disclosed in this Patent Document 1 includes a first light-transmissive sheet, a second light-transmissive sheet, a plurality of slats provided between the first and second light-transmissive sheets, and an opening / closing mechanism including a winding pipe to which upper end portions of the first and second light-transmissive sheets are connected so as to be wound up and unwound, and a bottom rail to which lower end portions of the first and second light-transmissive sheets are connected. Then, by relatively moving the first and second light-transmissive sheets by the opening / closing mechanism to rotate the slats, a shielding state and a daylighting state or a viewing state are switched.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the roll screen as disclosed in the above Patent Document 1, since the first and second light-transmissive sheets are wound and unwound in order to rotate the plurality of slats, the winding pipe is exposed and the groove formed in the winding pipe for connecting the upper end portions of the first and second light-transmissive sheets becomes visible. Here, as a connection structure between the first and second light-transmissive sheets and the winding pipe, a structure in which a plate is attached to the upper end portions of the first and second light-transmissive sheets by a fixture such as a staple and the first and second light-transmissive sheets are locked into the groove of the winding pipe through the plate is common.

[0005] In that case, if the winding pipe is exposed, the fasteners inside the groove of the winding pipe become visible from the inside. To prevent the resulting decrease in aesthetic appeal, it was necessary to have a structure that covered the top of the roller screen, including the winding pipe, with a box, or to cover the groove of the winding pipe with a cover. Therefore, there was a need for a roller screen that could prevent the decrease in aesthetic appeal caused by the visibility of the fasteners due to the exposure of the winding pipe with a simpler structure.

[0006] Therefore, the present invention has been made in view of these problems, and its objective is to provide a roll screen that can prevent the deterioration of design caused by the visibility of the fastener when the winding pipe is exposed, with a simpler structure. [Means for solving the problem]

[0007] To solve the above problems, the present invention provides a roll screen that opens and closes a plurality of slats by moving the first and second light-transmitting shielding materials relative to each other by the rotation of a winding pipe to which the first and second shielding materials are connected so as to be able to be wound up and unwound, wherein the first and second shielding materials are provided with a connecting auxiliary member fixed to the upper end by a fastener, and the winding pipe is provided with at least two connected portions having a pair of locking pieces that protrude from one side and the other side in the circumferential direction of the winding pipe, respectively, so as to be able to lock the connecting auxiliary member, and the connecting auxiliary member is provided in such a state that one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe, and the connecting auxiliary member is able to be locked to the connected portion.

[0008] With this configuration, since the fastener is hidden behind the locking piece of the connected part, even if the first and second shielding materials are unwound from the winding pipe and the winding pipe is exposed, the deterioration of the design caused by the fastener becoming visible can be prevented. In other words, the deterioration of the design can be prevented as described above with a simple structure without the need to provide separate components such as boxes or covers to prevent the fastener from being exposed.

[0009] The present invention has various applications. For example, the pair of locking pieces may be a long locking piece and a short locking piece with different lengths protruding in the circumferential direction, and the connecting auxiliary member may be locked to the connected portion with the long locking piece and the fastener overlapping in the radial direction. With such a configuration, the above effect can be obtained simply by redesigning the pair of locking pieces to be longer and shorter.

[0010] Furthermore, the connected portion may consist of a first connected portion provided on the front side of the plurality of slats and a second connected portion provided on the rear side of the plurality of slats. The first connected portion may be formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the lower side and the short locking piece is on the upper side, and the second connected portion may be formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the upper side and the short locking piece is on the lower side. With this configuration, a force acts on the first and second shielding members to push the ends of the connecting auxiliary members toward the short locking piece, making it difficult for the connecting auxiliary members to come loose from the connected portion even if they bend.

[0011] Furthermore, the connected portion may consist of a first connected portion provided on the front side of the plurality of slats and a second connected portion provided on the rear side of the plurality of slats. The first connected portion may be formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the upper side and the short locking piece is on the lower side, and the second connected portion may be formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the lower side and the short locking piece is on the upper side. With this configuration, a force acts on the first and second shielding materials to push the ends of the connecting auxiliary members toward the long locking piece, making the fasteners less visible.

[0012] Furthermore, the connecting auxiliary member may be elongated, and the fastener may be fixed to a position closer to the end of the connecting auxiliary member in the shorter direction. With this configuration, the fastener can be positioned on the back side of the locking piece, thus preventing the fastener from being exposed from the tip of the locking piece.

[0013] Furthermore, the connecting auxiliary member may be provided with a mark indicating the position where the fastener is fixed. With this configuration, the first and second shielding materials and the connecting auxiliary member can be fixed at a fixed position by the fastener. Therefore, there is no variation in the position of the fastener relative to the locking piece, and the fastener can be more reliably covered and concealed by the locking piece. [Effects of the Invention]

[0014] According to the roll screen of the present invention, it is possible to prevent the reduction in aesthetic appeal that occurs when the fasteners become visible due to the exposure of the winding pipe, with a simpler structure. Other effects of the present invention will be explained in the embodiments for carrying out the invention described later. [Brief explanation of the drawing]

[0015] [Figure 1] This is a side view showing the overall configuration of the roller screen 100 of this embodiment. [Figure 2]This is a side cross-sectional view near the winding pipe 120, where (a) shows the screen 110 wound up to its upper limit position, and (b) shows the screen 110 at the start of its descent. [Figure 3] This is a side cross-sectional view of the screen 110 when it is in its lowest position. (a) shows the slats 111 in the fully closed state (shading state), and (b) shows the slats 111 in the horizontal state (lighting state, view state). [Figure 4] This diagram shows the configuration of screen 110, where (a) is a side view and (b) is a front view. [Figure 5] This is a side cross-sectional view showing the configuration of the winding pipe 120, where (a) shows the configuration of the first embodiment and (b) shows the conventional configuration. [Figure 6] This is a side cross-sectional view showing the mounting state of the screen 110 in the second embodiment. [Modes for carrying out the invention]

[0016] Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings. In this specification and the drawings, components having substantially the same functional configuration are denoted by the same reference numerals, and redundant explanations will be omitted. In each figure, the left side as viewed from the page is the indoor side, and the right side is the outdoor side.

[0017] The overall configuration of the roll screen 100 according to this embodiment will be described with reference to Figures 1 to 3. Figure 1 is a side view showing the overall configuration of the roll screen 100 of this embodiment. Figure 2 is a side cross-sectional view near the winding pipe 120, where (a) shows the screen 110 wound up to its upper limit position, and (b) shows the screen 110 at the start of its descent. Figure 3 is a side cross-sectional view of the screen 110 at its lowest position, where (a) shows the slats 111 in a fully closed state (shading state), and (b) shows the slats 111 in a horizontal state (lighting state, viewing state).

[0018] As shown in FIGS. 1 to 3, the roll screen 100 of the present embodiment includes a screen 110 composed of a plurality of slats 111 and first and second light-transmissive shielding materials 112 and 113 provided so as to face the front and rear of the plurality of slats 111, and a winding pipe 120 to which the first and second shielding materials 112 and 113 are connected so as to be wound up and unwound. Then, by rotating the winding pipe 120, the first and second shielding materials 112 and 113 are relatively moved to open and close the plurality of slats 111. Hereinafter, the configuration of each part of the roll screen 100 will be described.

[0019] As shown in FIG. 2, the roll screen 100 is fixed to a fixed surface such as a window frame by a bracket 130. A set frame 132 is supported by the bracket 130, and side plates 134 are provided at both ends of the set frame 132. Both ends of the winding pipe 120 are rotatably supported by the side plates 134, and a side plate cover 136 is provided.

[0020] As shown in FIG. 2, the screen 110 is attached by inserting an upper screen fixing plate 115 (connection auxiliary member) fixed to the upper ends of the first and second shielding materials 112 and 113 by staples 114 (fasteners) into a first attachment groove 123 (first connected portion) and a second attachment groove 124 (second connected portion) formed in the winding pipe 120. At the lower end of the screen 110, a bottom rail 117 is connected by a lower screen fixing plate 116 fixed to the lower ends of the first and second shielding materials 112 and 113 by staples 114. Bottom caps 118 are attached to both ends of the bottom rail 117.

[0021] The rotation operation of the winding pipe 120 is performed by operating an operation cord 142 that hangs down from an operation unit 140 provided at one end of the winding pipe 120, as shown in FIG. 1. When raising and lowering the screen 110, as shown in FIGS. 2 and 3, when the winding pipe 120 is rotated at the lowest position of the screen 110, the first shielding material 112 and the second shielding material 113 move relative to each other in the vertical direction and approach, the slats 111 close, and the bottom rail 117 stands upright. The screen 110 is wound around and unwound from the winding pipe 120 and moves up and down in such a state.

[0022] In the state where the screen 110 is wound around the winding pipe 120, as shown in FIG. 2, the first mounting groove 123 and the second mounting groove 124 of the winding pipe 120 are not visible from the outside due to the screen 110. When the screen 110 is at the lowest position, as shown in FIG. 3, the first shielding material 112 and the second shielding material 113 are completely unwound from the winding pipe 120. Therefore, whether the slats 111 are in a horizontal state or a closed state, the first mounting groove 123 and the second mounting groove 124 of the winding pipe 120 are exposed and visible from the outside.

[0023] The configuration of the roll screen 100 has been described above. Hereinafter, the configurations of the characteristic screen 110 and the winding pipe 120 of the present embodiment will be described with reference to FIGS. 4 and 5 in addition to FIG. 3. FIG. 4 is a diagram showing the configuration of the screen 110, (a) is a side view, and (b) is a front view. FIG. 5 is a side cross-sectional view showing the configuration of the winding pipe 120, (a) shows the configuration of the present embodiment, and (b) shows the conventional configuration.

[0024] (Screen 110) As shown in FIG. 4, the screen 110 is composed of a plurality of slats 111 arranged at intervals in the vertical direction, and first and second shielding materials 112 and 113 having translucency provided so as to face the front and rear of the plurality of slats 111. The first and second shielding materials 112 and 113 include an upper screen fixing plate 115 fixed to the upper end by staples 114.

[0025] As shown in Figure 4, the upper screen retaining plate 115 is a long, rectangular plate and is provided on one side of the upper end of the first and second shielding materials 112 and 113 along its entire width. The upper screen retaining plate 115 has a V-groove (mark) 115a formed in a V shape below the center in the vertical direction, extending along its entire width. The V-groove 115a is a mark indicating the position where the first and second shielding materials 112 and 113 and the upper screen retaining plate 115 are connected, and staples 114 are driven along the V-groove 115a to fix the first and second shielding materials 112 and 113 and the upper screen retaining plate 115. In this way, the staples 114 are positioned vertically closer to the center in the short direction of the upper screen retaining plate 115.

[0026] A lower screen retaining plate 116 is provided on the other side of the lower ends of the first and second shielding materials 112 and 113, extending along the entire width. The lower ends of the first and second shielding materials 112 and 113 and the lower screen retaining plate 116 are connected by staples 114 near the center of the shorter side of the lower screen retaining plate 116.

[0027] As described above, the staples 114 are positioned slightly above and below the center of the upper screen fastening plate 115 in the short direction. To allow the staples 114 to be driven into a stable location, the upper screen fastening plate 115 is constructed as a long plate with a wider vertical width than the lower screen fastening plate 116. For example, the width of the upper screen fastening plate 115 can be approximately 14 mm and the width of the lower screen fastening plate 116 can be approximately 11.5 mm, but they can be designed arbitrarily. The upper screen fastening plate 115 and the lower screen fastening plate 116 are made of resin, for example, by extrusion molding of polyvinyl chloride (PVC).

[0028] (Reeling pipe 120) The winding pipe 120 will be described with reference to Figure 5. As shown in Figure 5(a), the winding pipe 120 is provided with first and second mounting grooves 123 and 124, each having a pair of locking pieces 121 and 122 that protrude from one and the other circumferential side of the winding pipe 120, respectively, so as to be able to lock the upper screen stopper plate 115.

[0029] As shown in Figure 5(a), the pair of locking pieces 121 and 122 are a long locking piece 121 and a short locking piece 122, with different lengths protruding circumferentially from the winding pipe 120. The upper screen stopper plate 115 is locked into the mounting grooves 123 and 124 with the long locking piece 121 and the staple 114 overlapping in the radial direction of the winding pipe 120.

[0030] The upper screen stopper plate 115 is inserted into the mounting grooves 123 and 124 through the opening 125 between the long locking piece 121 and the short locking piece 122. The short locking piece 122 is shorter than the locking piece 321 of the conventional winding pipe 320, which will be described later. For example, the ratio of the lengths of the long locking piece 121 to the short locking piece 122 is approximately 3:1. The width of the opening 125 is approximately 4 mm.

[0031] The first mounting groove 123, provided on the first shielding material 112 side on the indoor side of the multiple slats 111, is formed such that, in a viewing state where the multiple slats 111 are approximately horizontal, the long locking piece 121 is on the lower side and the short locking piece 122 is on the upper side, as shown in Figure 5(a). The second mounting groove 124, provided on the second shielding material 113 side on the outdoor side of the multiple slats 111, is formed such that, in a viewing state where the multiple slats 111 are approximately horizontal, the long locking piece 121 is on the upper side and the short locking piece 122 is on the lower side.

[0032] The first and second shielding materials 112 and 113 are subjected to a force that presses the end of the upper screen retaining plate 115 toward the short locking piece 122 due to the bottom rail 117 and their own weight. Therefore, even if the upper screen retaining plate 115 becomes distorted, it is difficult for it to come loose from the first and second mounting grooves 123 and 124.

[0033] On the other hand, the conventional winding pipe 320, as shown in Figure 5(b), has first and second mounting grooves 323 and 324 similar to the first and second mounting grooves 123 and 124 of this embodiment, and a locking piece 321 that has a different shape from the locking pieces 121 and 122 of this embodiment. That is, the pair of locking pieces 321 that protrude from one side and the other side in the circumferential direction of the first and second mounting grooves 323 and 324 are of the same length, and the opening 325 between the pair of locking pieces 321 is approximately 5 mm. Furthermore, the conventional screen 310 has the same basic configuration as the screen 110 of this embodiment, but differs in the following respects. The upper screen stopper plate 315 is connected to the first shielding material 312 and the second shielding material 313 by staples 314 at the center position in the short direction. Because the winding pipe 320 and the screen 310 have this configuration, the staples 314 are exposed from the opening 325. Therefore, the staples 314 become visible from the outside, reducing the aesthetic appeal.

[0034] Furthermore, in the case of the conventional winding pipe 320, if the staple 314 is positioned so that it overlaps radially with the locking piece 321 to prevent the staple 314 from being exposed, the staple 314 will be too close to the short-side end of the upper screen stopper plate 315. As a result, the first and second shielding materials 312 and 313 may come off the staple 314, and if the staple 314 is positioned so that it does not come off, the possibility of the staple 314 being exposed to the outside increases.

[0035] The configuration of the roll screen 100 of this embodiment has been described above. The operation of the roll screen 100 of this embodiment will now be described again with reference to Figure 3. When the screen 110 is lowered to its lowest position and the slats 111 are closed, as shown in Figure 3(a), the winding pipe 120 rotates 180 degrees counterclockwise in a side view from the state shown in Figure 3(b) and winds up a portion of the second shielding material 113. At this time, the second mounting groove 124 is positioned on the front side on the indoor side and is exposed through the light-transmitting second shielding material 113, but the staples 114 are hidden behind the long locking piece 121 and are not exposed, so only the upper screen stopper plate 115 is visible.

[0036] When the screen 110 is lowered to its lowest position and the slats 111 are in a horizontal viewing position, as shown in Figure 3(b), the first mounting groove 123 is positioned on the interior side and the second mounting groove 124 is positioned on the exterior side and both are exposed. At this time, the staples 114 are hidden behind the long locking piece 121 and are not exposed, so only the upper screen stopper plate 115 is visible.

[0037] In the roll screen 100 of this embodiment, the first and second mounting grooves 123 and 124 are exposed when the screen 110 is lowered to its lowest position, and are not exposed when the screen 110 is wound onto the winding pipe 120 as shown in Figure 2. Although the first and second shielding materials 112 and 113 are light-transmitting, the slats 111 are light-blocking (opaque), so when the screen 110 is wound onto the winding pipe 120 to the extent that the slats 111 cover the perimeter of the winding pipe 120, the first and second mounting grooves 123 and 124 are not exposed.

[0038] (Effects of the first embodiment) As described above, according to this embodiment, since the staples 114 are hidden behind the long locking pieces 121 of the first and second mounting grooves 123 and 124, even when the first and second shielding materials 112 and 113 are unwound from the winding pipe 120 and the winding pipe 120 is exposed, the deterioration of the design caused by the staples 114 becoming visible can be prevented. In other words, the deterioration of the design can be prevented with a simple structure as described above, without providing a separate component such as a box or cover to prevent the staples 114 from being exposed.

[0039] Furthermore, the above effect can be obtained simply by redesigning the pair of locking pieces 121 and 122 so that one is longer and the other is shorter.

[0040] Furthermore, since the first and second shielding materials 112 and 113 exert a force that pushes the ends of the upper screen retaining plate 115 toward the short locking piece 122, even if the upper screen retaining plate 115 bends, it is less likely to come loose from the first and second mounting grooves 123 and 124.

[0041] Furthermore, since the staple 114 can be positioned on the back side of the long locking piece 121, it is possible to prevent the staple 114 from being exposed from the tip of the long locking piece 121.

[0042] Furthermore, there is no variation in the position of the staples 114 relative to the long locking piece 121, and the staples 114 can be more reliably covered and concealed by the long locking piece 121.

[0043] (Second embodiment) The roll screen 200 according to the second embodiment will be described with reference to Figure 6. Figure 6 is a side cross-sectional view showing the mounting state of the screen 110 of the second embodiment. This embodiment differs from the first embodiment in the configuration of the winding pipe 220, and this embodiment will be described focusing on the differences from the first embodiment. Components having substantially the same functional configuration are denoted by the same reference numerals, and redundant explanations will be omitted.

[0044] The winding pipe 220, long locking piece 221, short locking piece 222, first mounting groove 223, and second mounting groove 224 of the roll screen 200 in this embodiment correspond to the winding pipe 120, long locking piece 121, short locking piece 122, first mounting groove 123, and second mounting groove 124 of the roll screen 100 in the first embodiment.

[0045] As shown in Figure 6, the winding pipe 220 has a first mounting groove 223 (first connected portion) provided on the front side (indoor side) of the multiple slats 111 such that when the multiple slats 111 are in a substantially horizontal position, the long locking piece 221 is on the upper side and the short locking piece 222 is on the lower side. The second mounting groove 224 (second connected portion) provided on the rear side (outdoor side) of the multiple slats 111 is also formed such that when the multiple slats 111 are in a substantially horizontal position, the long locking piece 221 is on the lower side and the short locking piece 222 is on the upper side.

[0046] The first and second shielding members 112 and 113 are connected by staples 114 with the upper screen stopper plate 115 positioned in the opposite vertical direction compared to the first embodiment. The first shielding member 112 is attached to the first mounting groove 223 such that the staples 114 are positioned upward. The second shielding member 113 is attached to the second mounting groove 224 such that the staples 114 are positioned downward. Therefore, in both the first mounting groove 223 and the second mounting groove 224, the staples 114 are positioned to overlap the long locking piece 221 in the radial direction and are not exposed to the outside. Furthermore, the first shielding member 112 exerts an upward force on the upper screen stopper plate 115, and the second shielding member 113 exerts an downward force on the upper screen stopper plate 115, restricting the movement of the upper screen stopper plate 115 and thus preventing the staples 114 from being exposed.

[0047] (Effects of the second embodiment) As described above, according to this embodiment, a force acts on the first shielding material 112 and the second shielding material 113 to push the end of the upper screen fixing plate 115 toward the long locking piece 221, thereby making the staples 114 less visible.

[0048] (Other embodiments) In the first embodiment, the first mounting groove 123 and the second mounting groove 124 are configured in a point-symmetric shape, but the first mounting groove and the second mounting groove may be configured in a line-symmetric shape. In this case, the long locking pieces of the first mounting groove and the second mounting groove both protrude in the same direction, and the short locking pieces also protrude in the same direction. That is, when the slat is in a horizontal position, the positions of the first mounting groove and the second mounting groove are as shown in Figure 3, and in this state, the long locking pieces of the first mounting groove and the second mounting groove both protrude upward, and the short locking pieces protrude downward. Conversely, the long locking pieces of the first mounting groove and the second mounting groove can also be configured to protrude downward, and the short locking pieces protrude upward.

[0049] Preferred embodiments of the present invention have been described above with reference to the attached drawings, but it goes without saying that the present invention is not limited to these examples. It will be obvious to those skilled in the art that various modifications or alterations can be conceived within the scope of the claims, and these will naturally also fall within the technical scope of the present invention.

[0050] For example, in the first embodiment described above, the pair of locking pieces 121 and 122 were a long locking piece 121 and a short locking piece 122 with different lengths protruding in the circumferential direction, but the present invention is not limited to this example. The design can be arbitrary as long as the connecting auxiliary member can be locked to the connected portion when one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe. For example, the pair of locking pieces may be configured to be the same length. The second embodiment is similar.

[0051] Furthermore, in the first embodiment described above, the winding pipe 120 is configured to have two mounting grooves 123 and 124 as connecting parts for locking the connecting auxiliary member, but the present invention is not limited to this example. It can be designed arbitrarily as long as it has at least two connecting parts. For example, there may be three or more connecting parts provided in the circumferential direction of the winding pipe, and the connecting auxiliary member may be selectively locked to a connecting part at any position.

[0052] Furthermore, in the first embodiment described above, the connecting auxiliary member was an upper screen stopper plate 115, and the connected portion was the first and second mounting grooves 123 and 124, but the present invention is not limited to this example. The design can be arbitrarily configured such that the connecting auxiliary member can be locked to the connected portion while one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe.

[0053] Furthermore, in the first embodiment described above, the staple 114 was configured to be fixed closer to the end of the upper screen stopper plate 115 than to the vertical center, but the present invention is not limited to this example. It can be designed arbitrarily as long as the connecting auxiliary member can be locked to the connected part when one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe. For example, the staple may be configured to be fixed to the vertical center of the upper screen stopper plate. The second embodiment is similar.

[0054] Furthermore, in the first embodiment described above, the upper screen stopper plate 115 is provided with a V-groove 115a at the position where the staple 114 is fixed, but the present invention is not limited to this example. The design can be arbitrary as long as the connecting auxiliary member can be locked to the connected part when one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe. For example, the mark may be printed on the upper screen stopper plate, or a mark may be provided. The second embodiment is similar. [Explanation of Symbols]

[0055] 100 Roller Blinds 110, 310 screens 111 Slats 112, 312 1st shielding material 113, 313 Second shielding material 114, 314 staples (fasteners) 115, 315 Upper screen retaining plate (connecting auxiliary member) 115a V groove (mark) 116 Lower screen retaining plate 117 Bottom Rail 118 Bottom Cap 120, 220, 320 reel pipes 121, 221, 321 Long locking piece (locking piece) 122, 222 Short locking piece (locking piece) 123, 223, 323 First mounting groove (first connected part) 124, 224, 324 Second mounting groove (second connected part) 125, 325 aperture 130 bracket 132 Set Frame 134 Side Plates 136 Side Plate Cover 140 Operating Unit 142 Operation Codes

Claims

1. A roll screen in which light-transmitting first and second shielding materials, which are provided facing each other in front of and behind a plurality of slats, are connected to a winding pipe that can be wound up and unwound, and the rotation of the winding pipe causes the first and second shielding materials to move relative to each other, thereby opening and closing the plurality of slats, The first and second shielding materials are equipped with connecting auxiliary members fixed to their upper ends by fasteners, The winding pipe is provided with at least two or more connecting portions, each having a pair of locking pieces that protrude from one and the other side of the winding pipe in the circumferential direction, so as to be able to lock the connecting auxiliary member. A roller screen characterized in that the connecting auxiliary member is configured to be able to be locked to the connected portion when one of the pair of locking pieces and the fastener overlap in the radial direction of the winding pipe.

2. The roller screen according to claim 1, characterized in that the pair of locking pieces are a long locking piece and a short locking piece having different lengths protruding in the circumferential direction, and the connecting auxiliary member is locked to the connected portion with the long locking piece and the fastener overlapping in the radial direction.

3. The connected portion is a first connected portion provided on the front side of the plurality of slats and a second connected portion provided on the rear side of the plurality of slats. The first connected portion is formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the lower side and the short locking piece is on the upper side. The roller screen according to claim 2, characterized in that the second connected portion is formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the upper side and the short locking piece is on the lower side.

4. The connected portion is a first connected portion provided on the front side of the plurality of slats and a second connected portion provided on the rear side of the plurality of slats. The first connected portion is formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the upper side and the short locking piece is on the lower side. The roller screen according to claim 2, characterized in that the second connected portion is formed such that, when the plurality of slats are in a substantially horizontal position, the long locking piece is on the lower side and the short locking piece is on the upper side.

5. The aforementioned connecting auxiliary member is elongated in shape. The roller screen according to claim 1, characterized in that the fastener is fixed at a position close to the end in the shorter direction of the connecting auxiliary member.

6. The roller screen according to claim 1, characterized in that the connecting auxiliary member is provided with a mark at the position where the fastener is fixed.

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