shielding device

Abstract

To provide a shielding device capable of obtaining various shielding states without requiring a space in a depth direction.SOLUTION: A shielding device 100 includes: a plurality of first shielding members 120 aligned and suspended in a longitudinal direction of a head rail 110; and a plurality of second shielding members 130 aligned and suspended in the longitudinal direction of the head rail 110. The first shielding members 120 and the second shielding members 130 at least partially overlap each other in a lateral direction of the head rail 110 in a closed state substantially parallel to the longitudinal direction of the head rail 110. The first shielding members 120 and the second shielding members 130 is characterized in that the overlapping state changes by relatively moving along the longitudinal direction of the head rail 110 while maintaining the closed state. The shielding device does not require a space in a depth direction, and therefore the shielding device can be installed even in a space having a small depth dimension so that various shielding states can be obtained.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a shielding device. [Background technology]

[0002] A conventional shading device is disclosed in Japanese Patent Laid-Open Publication No. 2009-221743 (Patent Document 1). The shading device disclosed in this document has a louver group suspended from multiple carriers, which is composed of first louvers and second louvers having first and second portions on the left and right sides when viewed from the front, with the first louvers arranged on both sides of the second louvers. The document discloses that when the louver group rotates in one direction to enter a closed state, at least a portion of the first portion of the second louver covers the gap between the adjacent first louvers, and when the louver group rotates in the other direction to enter a closed state, at least a portion of the second portion of the second louver covers the gap between the adjacent first louvers.

[0003] With this, when the louver group rotates in one direction to become closed, and when the louver group rotates in the other direction to become closed, different first or second parts of the second louver cover the gap between adjacent first louvers, thereby providing a wide variety of shielding states. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2009-221743 Summary of the Invention [Problem to be solved by the invention]

[0005] However, in conventional shading devices such as that disclosed in Patent Document 1, the shading state is switched by rotating the louver group in one direction or the other to close the state, so if the width of the louvers is large, it is necessary to secure a large space in the depth direction of the shading device, which poses a problem of restrictions on the installation location of the shading device.

[0006] The present invention has been made in consideration of such problems, and its purpose is to provide a shading device that can obtain a wide variety of shading states without requiring space in the depth direction. [Means for solving the problem]

[0007] In order to solve the above problems, according to the present invention, there is provided a shielding device comprising a plurality of first shielding materials aligned and hung in the longitudinal direction of a support member, and a plurality of second shielding materials aligned and hung in the longitudinal direction of the support member, wherein the first shielding materials and the second shielding materials overlap at least partially in the short direction of the support member when in a closed state that is approximately parallel to the longitudinal direction of the support member, and the first shielding materials and the second shielding materials change their overlap state by moving relatively along the longitudinal direction of the support member while maintaining the closed state.

[0008] According to this configuration, by moving one of the first and second shielding materials relative to the other along the longitudinal direction of the support member while maintaining the closed state, it is possible to change the overlap state between the first and second shielding materials without the width of the shielding material affecting the depthwise space of the shielding device. Therefore, it is possible to install a shielding device that can obtain a wide variety of shielding states even in a space with a small depth dimension without requiring a depthwise space.

[0009] Various application examples of the present invention are also conceivable. For example, the second shielding material may be formed so that a first portion and a second portion, each having a different color pattern, material, or transparency, are continuous in the width direction. With this configuration, the second shielding material is formed with a first portion and a second portion, each having a different color pattern, material, or transparency in the width direction. Therefore, by switching the portion of the second shielding material that overlaps the first shielding material, a wide variety of shielding states can be obtained, allowing for a variety of design changes.

[0010] Furthermore, the width of the first shielding material may be equal to or greater than the width of the first portion of the second shielding material. With this configuration, when the first shielding material and the first portion of the second shielding material are overlapped, the shielding state of the entire first portion can be changed.

[0011] Furthermore, the first portion of the second shielding material may be a transmissive portion, and the second portion may be an opaque portion. With this configuration, the first shielding material and the second shielding material can be switched between a light-transmitting state and a light-blocking state by moving the first shielding material and the second shielding material relative to each other.

[0012] Furthermore, when the first shielding material or the second shielding material moves relative to one another, one of the shielding materials may be movable relative to the other such that the shielding material passes between the adjacent shielding materials. According to this configuration, the moving shielding material is arranged to pass between the adjacent other shielding materials, thereby preventing the shielding materials from being swapped back and forth.

[0013] Furthermore, a plurality of carriers may be allowed to run on the support member, and the carrier that suspends the first shielding material and the carrier that suspends the second shielding material and is positioned at the forefront in the deployment direction may be allowed to run while maintaining a state of proximity by a connecting means. With this configuration, by moving one of the shielding materials in the longitudinal direction, the first shielding material and the second shielding material can be moved simultaneously. [Effects of the Invention]

[0014] According to the present invention, a shading device can achieve a wide variety of shading states without requiring space in the depth direction. Other effects of the present invention will be described in the detailed description of the invention below. [Brief explanation of the drawings]

[0015] [Figure 1] 1 is a front view showing the overall configuration of a shading device 100 according to a first embodiment. [Figure 2] FIG. 1 is a partial perspective view of a shielding device 100. [Figure 3] 1A and 1B are cross-sectional views of a first carrier 140 and a second carrier 150, where FIG. 1A shows the first carrier 140 and FIG. 1B shows the second carrier 150. FIG. [Figure 4] This is a plan view of the inside of the head rail 110 to explain the state of the first shielding material 120, the second shielding material 130, the first carrier 140, and the second carrier 150, where (a) shows the state in the middle of deployment, (b) shows the shielding state, and (c) shows the lighting state. [Figure 5] 1A and 1B are schematic plan views showing the operation of the shading device 100, in which (a) shows the folded state, (b) shows the state in the middle of unfolding, (c) shows the shading state, and (d) shows the light-admitting state. [Figure 6] 1A and 1B are schematic front views showing the operation of the shading device 100, in which (a) shows the folded state, (b) shows the state in the middle of unfolding, (c) shows the shading state, and (d) shows the light-admitting state. [Figure 7] 10A and 10B are diagrams showing the operation of the second shielding material 130, where FIG. 10A shows the shielding state and FIG. [Figure 8] 10A and 10B are diagrams showing the operation of the second shielding material 230 of the second embodiment, where FIG. 10A shows a first state and FIG. 10B shows a second state. [Figure 9] 10A and 10B are diagrams showing the operation of the second shielding material 330 of the third embodiment, where (a) shows a first state and (b) shows a second state. [Figure 10] 10A and 10B are diagrams showing the operation of the first shielding material 420 of the fourth embodiment, where (a) shows a first state and (b) shows a second state. [Figure 11] 10A and 10B are diagrams showing the configuration of a first shielding material 520 and a second shielding material 530 of the fifth embodiment, where (a) shows a first state and (b) shows a second state. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functional configurations are designated by the same reference numerals, and redundant explanations will be omitted.

[0017] (First embodiment) The overall configuration of a shading device 100 according to a first embodiment will be described with reference to Figs. 1 to 3. Fig. 1 is a front view showing the overall configuration of the shading device 100 of this embodiment. Fig. 2 is a partial perspective view of the shading device 100. Fig. 3 is a cross-sectional view of a portion of the first carrier 140 and the second carrier 150. Fig. 4 is a plan view inside the head rail 110 for explaining the state of the first shielding material 120, the second shielding material 130, and the first carrier 140 and the second carrier 150.

[0018] 1, the shading device 100 comprises a plurality of first shielding materials 120 aligned and suspended in the longitudinal direction of a head rail (support member) 110, and a plurality of second shielding materials 130 aligned and suspended in the longitudinal direction of the head rail 110, the first shielding materials 120 and the second shielding materials 130 at least partially overlapping in the short direction of the head rail 110 in a closed state substantially parallel to the longitudinal direction of the head rail 110, and the first shielding materials 120 and the second shielding materials 130 are configured to change their overlapping state by moving relatively along the longitudinal direction of the head rail 110 while maintaining the closed state. Each component will be described below.

[0019] (Headrail 110) The head rail 110 suspends and supports the first shielding material 120 and the second shielding material 130 so that they can move in the longitudinal direction. As shown in Fig. 1, the head rail 110 is attached to a window frame or the like by brackets 112. As shown in Fig. 1, a plurality of first carriers 140 and second carriers 150 are arranged alternately within the head rail 110 so that they can move in the longitudinal direction.

[0020] 2, a first shielding material 120 is suspended from the first carrier 140 via a suspension shaft 142, and a second shielding material 130 is suspended from the second carrier 150 via an offset suspension shaft 152. In addition, a first spacer link 144 that connects adjacent first carriers 140 and a second spacer link 154 that connects adjacent second carriers 150 are provided within the head rail 110.

[0021] As shown in Figure 1, near one end of the head rail 110, there is disposed a master carrier 140M, which is a carrier disposed at the front of the first carrier 140 in the deployment direction. A first shielding material 120 is suspended from the master carrier 140M. In addition, a baton carrier 160 for controlling the movement of the master carrier 140M is disposed further toward the end of the head rail 110 than the master carrier 140M. The master carrier 140M and the baton carrier 160 are connected by a connecting member 170, and can move together in the longitudinal direction of the head rail 110.

[0022] As shown in Fig. 1, a baton (first operating unit) 180 for operating the movement of the baton carrier 160 is suspended from the baton carrier 160. A stopper 114 is provided at one end of the head rail 110 to detachably engage with the baton 180 so as to hold the baton carrier 160 in the deployed position. Within the head rail 110, an endless opening / closing cord (second operating unit) 190 for operating the movement of the second carrier 150 is movably inserted through the first carrier 140, the second carrier 150 (excluding the second carrier 150 located at the rearmost position in the deployment direction), the master carrier 140M, and the baton carrier 160 over the entire longitudinal length, and is suspended from the other end of the head rail 110.

[0023] (First shielding material 120, second shielding material 130) The first shielding material 120 and the second shielding material 130 keep the opening closed at all times. As shown in FIG. 1, the first shielding material 120 and the second shielding material 130 are always in a closed state, substantially parallel to the longitudinal direction of the head rail 110, and at least a portion of them overlap in the lateral direction of the head rail 110. The first shielding material 120 and the second shielding material 130 change their overlapping state by moving relatively along the longitudinal direction of the head rail 110 while maintaining their closed state. The first shielding material 120 and the second shielding material 130 can be switched between a first state, which is a shielding state in which the opening is shielded, and a second state, which is a light-admitting state in which light is admitted, depending on the change in overlapping state. The second shielding material 130 can move relatively to pass between adjacent first shielding materials 120.

[0024] The first shielding material 120 can have a configuration similar to that of a louver in a general shielding device. As shown in Fig. 3, the upper end of the first shielding material 120 is suspended from the first carrier 140 by a hanger 122. The first shielding material 120 is made of an opaque material.

[0025] As shown in FIG. 2, the second shielding material 130 is formed so that a first portion 132 and a second portion 134 are continuous in the width direction. The first portion 132 is a transmissive portion that transmits light, and the second portion 134 is an opaque portion that does not transmit light. The first portion 132 is configured to have a width equal to or smaller than the width of the first shielding material 120. The second portion 134 is configured to be equal to or larger than the distance between adjacent first shielding materials 120, but slightly smaller than the width of the first shielding material 120. As shown in FIG. 3, the second shielding material 130 is hung from the second carrier 150 by a hanger 136 at the boundary between the first portion 132 and the second portion 134.

[0026] The first shielding material 120 and the second shielding material 130 can change their shielding state depending on their overlapping state. By arranging the first portion 132 so that it overlaps with the first shielding material 120, the first shielding material 120 and the second portion 134 are arranged continuously in the width direction, as shown in Fig. 4(b), thereby forming a first state which is a shielding state. Furthermore, by arranging the second portion 134 so that it overlaps with the first shielding material 120, the first shielding material 120 and the first portion 132 are arranged continuously in the width direction, as shown in Fig. 4(c), thereby forming a second state which is a light-transmitting state.

[0027] (First carrier 140, second carrier 150) The first carrier 140 suspends the first shielding material 120, and the second carrier 150 suspends the second shielding material 130. The first carrier 140 and the second carrier 150 have the same configuration as a general carrier except for the points described below, so the differences will mainly be described.

[0028] First, the first carrier 140 will be described. As shown in FIG. 1, the carrier located at the front of the first carrier 140 in the deployment direction is called the master carrier 140M. The master carrier 140M has almost the same configuration as the first carrier 140, except that it is connected to the baton carrier 160 by a connecting member 170 and is attracted to the second carrier 150 by a built-in magnet 149 (see FIG. 5(a)). Therefore, the following description will be given using the first carrier 140 as an example.

[0029] As shown in FIG. 2, the first carrier 140 has a linear hanging shaft 142 for hanging the first shielding material 120. As shown in FIG. 3(a), the first shielding material 120 is hung from the hanging shaft 142 by a hanger 122. A first spring 146 is provided on the upper part of the hanging shaft 142. The first spring 146 biases the hanging shaft 142 so that the first shielding material 120 maintains a horizontal state. This allows the first shielding material 120 to return to a horizontal state even if it is blown by wind or the like, and allows the first shielding material 120 to maintain a closed state together with the second shielding material 130, which partially overlaps with the first shielding material 120.

[0030] As shown in Figure 3(a), the first carrier 140 has a pair of first insertion holes 148-1, 148-2 formed on the left and right sides of the hanging shaft 142. An opening / closing cord 190 arranged on the front side of the head rail 110 is movably inserted through the first insertion hole 148-1, and an opening / closing cord 190 arranged on the rear side of the head rail 110 is movably inserted through the first insertion hole 148-2. Therefore, movement of the opening / closing cord 190 does not cause movement of the first carrier 140.

[0031] 3(a), a first spacer link 144 and a second spacer link 154 are respectively arranged on the front and rear upper portions of the first carrier 140, sandwiching the suspension shaft 142 therebetween. As shown in FIG. 2, the first spacer link 144 connects adjacent first carriers 140 and can pull the adjacent first carriers 140 when opening or closing. On the other hand, the second spacer link 154 is not provided with a means for connecting to the first carrier 140, and does not act on the first carrier 140.

[0032] 1, the second carrier 150 has a substantially L-shaped offset hanging shaft 152 for hanging the second shielding material 130. The offset hanging shaft 152 is offset to the position of the side end of the first shielding material 120 when the first carrier 140 and the second carrier 150 are adjacent to each other. As shown in FIG. 3(b), the boundary between the first portion 132 and the second portion 134 of the second shielding material 130 is hung from the offset hanging shaft 152 by a hanger 136.

[0033] As shown in FIG. 3(b), a second spring 156 is provided on the upper part of the offset hanging shaft 152. The second spring 156 biases the offset hanging shaft 152 so that the second shielding material 130 maintains a horizontal state. A pair of second insertion holes 158-1, 158-2 are formed on the left and right sides of the offset hanging shaft 152 in the second carrier 150. Similar to the first insertion holes 148-1, 148-2 of the first carrier 140, an opening / closing cord 190 is movably inserted through the second insertion holes 158-1, 158-2 of the other second carriers 150 except for the second carrier 150 disposed at the other end of the head rail 110.

[0034] In the second carrier 150 arranged at the rear end in the deployment direction, an opening / closing cord 190 is fixed to one second insertion hole 158-1 by a cord fixing part 192, and the opening / closing cord 190 is movably inserted into the other second insertion hole 158-2. Therefore, when the opening / closing cord 190 is operated, the second carrier 150 arranged at the rear end in the deployment direction moves, and the other second carriers 150 also move.

[0035] In the second carrier 150 located at the front in the deployment direction, a magnet 159 is provided on the side facing the master carrier 140M (see FIG. 5(a)). The magnet 159 attracts the magnet 149 of the master carrier 140M, allowing the second carrier 150 and the master carrier 140M to move together.

[0036] 3(b), a first spacer link 144 and a second spacer link 154 are respectively arranged on the front and rear upper portions of the second carrier 150, sandwiching the offset suspension shaft 152 therebetween. As shown in FIG. 2, the second spacer link 154 connects adjacent second carriers 150 and can pull the adjacent second carriers 150 when opening or closing. On the other hand, the first spacer link 144 is not provided with a means for connecting to the second carrier 150, and does not act on the second carrier 150.

[0037] The above has described the configuration of the first carrier 140 and the second carrier 150. Below, the operation of the first carrier 140 and the second carrier 150 will be described with reference to Fig. 4. When the first shielding material 120 and the second shielding material 130 are in the process of being deployed, as shown in Fig. 4(a), the master carrier 140M and the second carrier 150 are attracted by a magnet and can move together, so the first carrier 140 and the second carrier 150 move adjacent to each other in the direction of the arrow a in the figure.

[0038] When the first shielding material 120 and the second shielding material 130 are set to the first state, which is the shielding state, the first carrier 140 and the second carrier 150 are placed adjacent to each other, as shown in FIG. 4(b). This is the state when the first shielding material 120 and the second shielding material 130 are deployed. At this time, the first portion 132 of the second shielding material 130 overlaps the first shielding material 120, and the second portion 134 is disposed between adjacent first shielding materials 120. In this way, the second portion 134, which is an opaque portion, and the first shielding material 120, which is an opaque portion, are disposed alternately in the longitudinal direction of the head rail 110, resulting in the first state, which is the shielding state.

[0039] When the first shielding material 120 and the second shielding material 130 are placed in the second state, which is a light-transmitting state, the opening / closing cord 190 is operated to relatively move the second carrier 150 in a direction away from the first carrier 140, as shown in FIG. 4(c). When the second carrier 150 is positioned at the intermediate position between adjacent first carriers 140, the second portion 134 of the second shielding material 130 overlaps with the first shielding material 120, and the first portion 132 is positioned between the adjacent first shielding materials 120. In this way, the first portion 132, which is a transmissive portion, and the first shielding material 120, which is an opaque portion, are alternately positioned in the longitudinal direction of the head rail 110, resulting in the second state, which is a light-transmitting state.

[0040] The configuration of the shading device 100 of this embodiment has been described above. Next, the operation of the shading device 100 will be described with reference to FIGS. 5 to 7. FIG. 5 is a schematic plan view showing the operation of the shading device 100. FIG. 6 is a schematic front view showing the operation of the shading device 100. FIG. 7 is a diagram showing the operation of the second shielding material 130. In FIG. 6, for the sake of convenience, the second shielding material 130 is shown lower than the first shielding material 120 in order to make the relationship between the first shielding material 120 and the second shielding material 130 easier to understand. In addition, in FIGS. 5 and 6, the master carrier 140M and the baton carrier 160 are shown as being integrated together for the sake of convenience.

[0041] When the first shielding material 120 and the second shielding material 130 are folded, as shown in Fig. 5(a), the first carrier 140, the second carrier 150, and the master carrier 140M are arranged adjacent to the other end of the head rail 110. At this time, the second carrier 150 adjacent to the master carrier 140M has magnets 149 and 159 attracted to each other, making them movable as a unit. As shown in Fig. 6(a), the first shielding material 120 and the second shielding material 130 are arranged approximately parallel to the longitudinal direction of the head rail 110, and are alternately overlapped front to back.

[0042] 5(b), when the first shielding material 120 and the second shielding material 130 are deployed, the baton 180 is pulled toward one end of the head rail 110, and the master carrier 140M is moved together with the baton carrier 160. Therefore, as the master carrier 140M moves, the first carrier 140 is successively pulled toward one end of the head rail 110 by the first spacer link 144.

[0043] The second carriers 150 positioned at the front in the deployment direction are attracted to the master carrier 140M and move integrally, and are successively pulled by the second spacer links 154 toward one end of the head rail 110.

[0044] As shown by arrow b in Fig. 6(b), the first shielding material 120 and the second shielding material 130 move in a state that is approximately parallel to the longitudinal direction of the head rail 110. At this time, the first shielding material 120 and the second shielding material 130 are unfolded so that the amount of overlapping becomes smaller from the first shielding material 120 and the second shielding material 130 at the leading end in the unfolding direction.

[0045] When the first carrier 140 and the second carrier 150 are fully deployed as shown in FIG. 5(c), the baton 180 engages with the stopper 114 (not shown) at one end of the head rail 110, entering the first state, which is a shielded state. At this time, the master carrier 140M and the second carrier 150 located at the front in the deployment direction remain attracted to each other by the magnets 149 and 159. Adjacent first carriers 140 are spaced equally apart by the first spacer links 144, and adjacent second carriers 150 are also spaced equally apart by the second spacer links 154. The second, third, fourth, etc. first carriers 140 and second carriers 150 from the front in the deployment direction are positioned adjacent to each other. Only the first carrier 140 at the other end of the head rail 110 is positioned alone.

[0046] In the first state, as shown in Figures 6(c) and 7(a), the first shielding material 120 and the second shielding material 130 are arranged such that the first portion 132 of the second shielding material 130 overlaps the back side of the first shielding material 120. The second portion 134 of the second shielding material 130 is arranged between adjacent first shielding materials 120, with its side edge slightly overlapping the front side of the side edge of the adjacent first shielding material 120. Because the opaque first shielding material 120 and the opaque second portion 134 are arranged alternately in the longitudinal direction of the head rail 110, the first state is reached in which the opening is shielded from light, as shown by arrow c in Figure 7(a).

[0047] To enter the second state, which is the light-admitting state, the opening / closing cord 190 is operated in the direction of arrow d in Figures 5(d) and 6(d), and the second carrier 150 connected to it is pulled in the direction of arrow e in Figure 5(d). Then, while the engagement between the baton 180 and the stopper 114 is maintained, the attraction between the magnet 159 of the second carrier 150 located at the forefront in the deployment direction and the magnet 149 of the master carrier 140M is released by the pulling of the second spacer link 154. Therefore, the first carrier 140 and the master carrier 140M do not move, and only the second carrier 150 moves in the direction of arrow e. The second state is entered when the second carrier 150 is moved to a position midway between the adjacent first carrier 140 and master carrier 140M.

[0048] In this way, when changing from the first state to the second state, the second shielding material 130 moves in the direction shown by arrow f in Fig. 6(d). Therefore, in the second state, the first shielding material 120 and the second shielding material 130 are arranged such that the second portion 134 of the second shielding material 130 overlaps the front side of the first shielding material 120, as shown in Fig. 6(d) and Fig. 7(b). The first portion 132 of the second shielding material 130 is arranged between adjacent first shielding materials 120, and its side edge slightly overlaps the rear side of the side edge of the adjacent first shielding material 120.

[0049] Therefore, the opaque first shielding material 120 and the transparent first portion 132 are alternately arranged in the longitudinal direction of the head rail 110, resulting in a second state in which light is admitted to the opening, as shown by arrow g in Figure 7(b). In this way, the second shielding material 130 can be switched between the first state and the second state by moving relative to the first shielding material 120, as shown by arrow h in Figure 7(b).

[0050] (Effects of the first embodiment) As described above, according to this embodiment, of the first shielding material 120 and the second shielding material 130, by moving the second shielding material 130 relative to the first shielding material 120 along the longitudinal direction of the head rail 110 while maintaining the closed state, it is possible to change the overlap state between the first shielding material 120 and the second shielding material 130 without the width of the shielding material affecting the space in the depth direction of the shading device 100. Therefore, it is possible to install the shading device 100, which is capable of obtaining a wide variety of shielding states, even in a space with a small depth dimension, without requiring space in the depth direction.

[0051] Furthermore, since the first part 132 of the second shielding material 130 is a transmissive part and the second part 134 is an opaque part, the second shielding material 130 can be switched between a light-transmitting state and a light-blocking state by relative movement between the first shielding material 120 and the second shielding material 130.

[0052] Furthermore, by arranging the second shielding material 130 so that it passes between the adjacent first shielding materials 120, it is possible to prevent the first shielding material 120 and the second shielding material 130 from being swapped front to back.

[0053] In addition, by attracting the master carrier 140M and the second carrier 150 located at the front of the deployment direction with magnets 149, 159, the first shielding material 120 can be moved in the longitudinal direction, thereby moving the first shielding material 120 and the second shielding material 130 simultaneously.

[0054] (Second embodiment) The configuration of a shading device according to a second embodiment will be described with reference to Fig. 8. Fig. 8 is a diagram showing the operation of the second shading material of this embodiment, with (a) showing the shading state and (b) showing the light-receiving state. This embodiment differs from the first embodiment above mainly in the configuration of the second shading material 230, and the following description will focus on the differences from the first embodiment above. Components having substantially the same functional configuration will be assigned the same reference numerals, and redundant description will be omitted.

[0055] The second shielding material 230 is not composed of two parts, a first part and a second part, like the second shielding material 130 of the first embodiment, but is composed of a material whose transmittance gradually changes in the width direction.

[0056] In the first state, the first shielding material 120 and the second shielding material 230 are arranged in the same manner as the first shielding material 120 and the second shielding material 130 of the first embodiment. Then, the first shielding material 120 and the second shielding material 230 are in the first state in which they shield the opening, as shown by the arrow c in Fig. 8(a).

[0057] In the second state, the first shielding material 120 and the second shielding material 230 are arranged in the same manner as the first shielding material 120 and the second shielding material 130 of the first embodiment. Then, the first shielding material 120 and the second shielding material 230 enter the second state in which light is let in through the opening, as shown by the arrow g in Fig. 8(b).

[0058] The second shielding material 230 is made of a material whose transmittance gradually changes in the width direction, so that by moving relative to the first shielding material 120 as shown by arrow h in Figure 8(b), the shielding state can be gradually changed between the first state and the second state.

[0059] (Effects of the second embodiment) As described above, according to this embodiment, the second shielding material 230 is made of a material whose transmittance gradually changes in the width direction, so that the shielding state can be gradually changed by moving the second shielding material 230.

[0060] (Third embodiment) The configuration of a shading device according to a third embodiment will be described with reference to Fig. 9. Fig. 9 is a diagram showing the operation of the second shielding material 330 of this embodiment, with (a) showing the shielding state and (b) showing the light-admitting state. This embodiment differs from the first embodiment above mainly in the configuration of the second shielding material 330, and the following description will focus on the differences from the first embodiment above. Components having substantially the same functional configuration will be assigned the same reference numerals, and redundant description will be omitted.

[0061] The second shielding material 330 is configured such that the first portion 332 and the second portion 334 have different colors and patterns.

[0062] 9(a), in the first state, similar to the first shielding material 120 and the second shielding material 130 of the first embodiment, the first portion 332 of the second shielding material 330 is arranged so as to overlap with the back side of the first shielding material 120. Then, the first shielding material 120 and the second portion 334 are arranged alternately in the longitudinal direction of the head rail 110. Therefore, a design is created in which the first shielding material 120 and the second portion 334 are arranged alternately.

[0063] 9(b), in the second state, similar to the first shielding material 120 and the second shielding material 130 of the first embodiment, the second portion 334 of the second shielding material 330 is arranged so as to overlap with the front surface side of the first shielding material 120. Then, the first portion 332 and the second portion 334 of the second shielding material 330 are arranged side by side. Therefore, a design is created in which the first portions 332 and the second portions 334 are arranged alternately.

[0064] As shown by arrow h in Figure 9(b), the second shielding material 330 can be moved relative to the first shielding material 120, so that the first shielding material 120, the second portion 334, and the first portion 332 can be arranged in this order midway between the first state and the second state. By changing the amount of relative movement of the second shielding material 330 with respect to the first shielding material 120, it is possible to change the proportions of the first shielding material 120, the second portion 334, and the first portion 332 that are exposed. In this way, the design can be changed in a variety of ways.

[0065] Furthermore, by making the second portion 334 of the second shielding material 330 the same color and pattern as the first shielding material 120, the entire opening can be shielded with the same color and pattern in the first state.

[0066] (Effects of the third embodiment) As described above, according to this embodiment, the second shielding material 330 is configured such that the first portion 332 and the second portion 334 have different colors and patterns, and by switching the portion of the second shielding material 330 that overlaps the first shielding material 120, it is possible to obtain a variety of shielding states, and the design can be changed in a variety of ways.

[0067] (Fourth embodiment) The configuration of a shielding device according to a fourth embodiment will be described with reference to Fig. 10. Fig. 10 is a diagram showing the operation of a first shielding material 420 according to the fourth embodiment, where (a) shows a first state and (b) shows a second state. This embodiment differs from the first embodiment in the configuration in which the first shielding material 420 moves relative to the second shielding material 130, and the following description will focus on the differences from the first embodiment. Components having substantially the same functional configuration will be assigned the same reference numerals, and redundant description will be omitted.

[0068] 10, in this embodiment, the first shielding material 420 is always disposed on the rear side of the second shielding material 130. The first shielding material 420 moves relative to the rear side of the second shielding material 130 in the longitudinal direction of the head rail 110.

[0069] In the first state, which is the shielding state, as shown in Fig. 10(a), the first shielding material 420 is arranged so as to overlap the back side of the first portion 132 of the second shielding material 130. Then, the first portion 132, which is the transmissive portion, overlaps the first shielding material 420, which is the opaque portion, so that the first shielding material 420 blocks light and becomes opaque, as shown by arrow c in the figure. Therefore, the entire opening can be shielded.

[0070] To enter the second state, which is a light-transmitting state, as shown in FIG. 10(b), the first shielding material 420 is moved relative to the second shielding material 130, and the first shielding material 420 is positioned so as to overlap the back side of the second portion 134 of the second shielding material 130. Then, the second portion 134, which is an opaque portion, overlaps the first shielding material 420, and light becomes transmittable through the first portion 132 of the second shielding material 130, as shown by arrow g in the figure. Therefore, the transmissive portions and opaque portions are arranged alternately throughout the entire opening, allowing light to enter.

[0071] As shown by arrow h in Figure 10(b), the first shielding material 420 can move relative to the second shielding material 130, thereby changing the width of the overlap with the first portion 132 between the first state and the second state, thereby changing the lighting state.

[0072] (Effects of the fourth embodiment) As described above, according to this embodiment, by moving the first shielding material 420 and switching between the first state and the second state, it is possible to obtain the same effects as in the first embodiment.

[0073] (Fifth embodiment) The configuration of a shielding device according to a fifth embodiment will be described with reference to Fig. 11. Fig. 11 is a diagram showing the configuration of a first shielding material 520 and a second shielding material 530 of this embodiment, with (a) showing a first state and (b) showing a second state. This embodiment differs from the fourth embodiment in the arrangement of the first shielding material 520 and the second shielding material 530, and the following description will focus on the differences from the first embodiment. Components having substantially the same functional configuration will be assigned the same reference numerals, and redundant description will be omitted.

[0074] 11, the first shielding material 520 and the second shielding material 530 are spaced apart in the front-to-rear direction and are arranged more parallel to the longitudinal direction of the head rail 110 than the first shielding material 420 and the second shielding material 130 of the fourth embodiment. The side edge of the second shielding material 530 overlaps the side edge of the adjacent second shielding material 530 in the short direction.

[0075] 11(a), in the first shielding state, the first shielding material 520 is arranged so as to overlap the back side of the first portion 532 of the second shielding material 530. Then, the first portion 532, which is the transmissive portion, overlaps the first shielding material 520, which is the opaque portion, so that light is blocked by the first shielding material 520 and becomes opaque, as shown by arrow c in the figure. Therefore, the entire opening can be shielded.

[0076] To enter the second state, which is a light-transmitting state, as shown in FIG. 11(b), the first shielding material 520 is moved relative to the second shielding material 530, and the first shielding material 520 is positioned so as to overlap the back side of the second portion 534 of the second shielding material 530. Then, the second portion 534, which is an opaque portion, overlaps the first shielding material 520, and light becomes transmissive through the first portion 532 of the second shielding material 530, as shown by arrow g in the figure. Therefore, transmissive portions and opaque portions are arranged alternately throughout the entire opening, allowing light to enter.

[0077] As shown by arrow h in Figure 11(b), the first shielding material 520 can move relative to the second shielding material 530, thereby changing the width of the overlap with the first portion 532 between the first state and the second state, thereby changing the lighting state.

[0078] (Effects of the fifth embodiment) As described above, according to this embodiment, by arranging the first shielding material 520 and the second shielding material 530 at a distance in the front-to-rear direction, the side end of the second shielding material 530 can be arranged to overlap in the short direction with the side end of the adjacent second shielding material 530. Therefore, the adhesion between the second shielding materials 530 can be increased, and the shielding performance can be improved.

[0079] While the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such examples. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that these modifications and alterations also fall within the technical scope of the present invention.

[0080] For example, in the first embodiment described above, the first shielding material 120 and the second shielding material 130 are arranged alternately, but the present invention is not limited to this example. Any design is possible as long as the overlap state changes as the first shielding material and the second shielding material move relative to each other. For example, a configuration in which two first shielding materials are arranged adjacent to each other and one second shielding material is arranged may be repeated in the longitudinal direction of the head rail. The same applies to the second and third embodiments.

[0081] In the first embodiment, the first portion 132 of the second shielding material 130 is a transmissive portion that transmits light, and the second portion 134 is an opaque portion that does not transmit light, but the present invention is not limited to this example. For example, the first portion and the second portion may have different colors, patterns, materials, or transmittances. The same applies to the third to fifth embodiments.

[0082] Furthermore, in the first embodiment, the second shielding material 130 is configured from two parts, the first part 132 and the second part 134, but the present invention is not limited to this example. Any design is possible as long as the overlap state changes as the first shielding material and the second shielding material move relative to each other. For example, the second shielding material may be configured from three or more parts. The same applies to the third to fifth embodiments.

[0083] Furthermore, in the first embodiment described above, the width of the first shielding material 120 is configured to be equal to or greater than the width of the first portion 132 of the second shielding material 130, but the present invention is not limited to this example. Any design is possible as long as the overlap state changes as the first shielding material and the second shielding material move relative to each other. For example, the width of the first shielding material may be smaller than the width of the first portion.

[0084] In the first embodiment, the second shielding material 130 moves relatively to pass between the first shielding materials 120, but the present invention is not limited to this example. For example, one shielding material may move on the front or back side of the other shielding material. The same applies to the second and third embodiments.

[0085] Furthermore, in the first embodiment, magnets 149 and 159 are used as coupling means for allowing the master carrier 140M and the second carrier 150 positioned at the front of the deployment direction to travel while maintaining a state of close proximity between them. However, the present invention is not limited to this example. The coupling means can be designed arbitrarily as long as it allows movement while maintaining a state of close proximity between them. For example, the master carrier 140M and the second carrier 150 positioned at the front of the deployment direction may be configured to fit together.

[0086] The above-described embodiments, applications, modifications, etc. can be implemented in appropriate combinations. [Explanation of symbols]

[0087] 100 Shielding Device 110 Head rail (support member) 112 Bracket 120, 420, 520 1st shielding material 122 Hanger 130, 230, 330, 530 2nd shielding material 132, 332, 532 Part 1 134, 334, 534 2nd part 136 Hanger 140 First Carrier 140M Master Carrier 142 Hanging shaft 144 1st spacer link 146 First Spring 148-1, 148-2 First insertion hole 149 Magnet 150 Second Career 152 Offset hanging axis 154 Second spacer link 156 Second Spring 158-1, 158-2 Second insertion hole 159 Magnet 160 Baton Carrier 170 Connecting member 180 Baton 190 Opening and Closing Cord 192 Cord fixing part

Claims

1. a plurality of first shielding materials aligned and suspended in the longitudinal direction of the support member; a plurality of second shielding members aligned in the longitudinal direction of the support member and suspended therefrom; Equipped with the first shielding material and the second shielding material at least partially overlap in a short-side direction of the support member in a closed state substantially parallel to a long-side direction of the support member, the first shielding material and the second shielding material change their overlapping state by moving relatively along the longitudinal direction of the support member while maintaining a closed state; The second shielding material is formed so that a first portion and a second portion, each having a different color pattern, material, or transparency, are continuous in the width direction, A shielding device, characterized in that the width of the first shielding material is equal to or greater than the width of the first portion of the second shielding material.

2. 2. The shielding device according to claim 1, wherein the first portion of the second shielding material is a transparent portion and the second portion is an opaque portion.

3. A plurality of first shielding materials aligned and suspended in the longitudinal direction of the support member; a plurality of second shielding members aligned in the longitudinal direction of the support member and suspended therefrom; Equipped with the first shielding material and the second shielding material at least partially overlap in a short-side direction of the support member in a closed state substantially parallel to a long-side direction of the support member, the first shielding material and the second shielding material change their overlapping state by moving relatively along the longitudinal direction of the support member while maintaining a closed state; A shielding device, characterized in that when the first shielding material or the second shielding material moves relative to each other, one of the shielding materials can move relatively to pass between the other shielding material.

4. A plurality of first shielding materials aligned and suspended in the longitudinal direction of the support member; a plurality of second shielding members aligned in the longitudinal direction of the support member and suspended therefrom; Equipped with the first shielding material and the second shielding material at least partially overlap in a short-side direction of the support member in a closed state substantially parallel to a long-side direction of the support member, the first shielding material and the second shielding material change their overlapping state by moving relatively along the longitudinal direction of the support member while maintaining a closed state; A plurality of carriers are allowed to travel on the support member, a carrier that suspends the first shielding material and is positioned at the front in the deployment direction, and a carrier that suspends the second shielding material and is positioned at the front in the deployment direction, are capable of traveling while maintaining a close proximity to each other by a connecting means.

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