Opening device

Abstract

To provide an opening device capable of adjusting all slats to the same arbitrary angle in the fully closed state of an opening.SOLUTION: And a slat moving mechanism that moves the plurality of slats along the guide rail, wherein the slat moving mechanism moves the plurality of slats along the guide rail in a deploying direction to fully close the opening and moves the plurality of slats along the guide rail in a retracting direction so that the plurality of slats overlap each other. This opening part device constituted so as to fully open an opening part has a slat rotating mechanism part arranged along the extending direction of a guide rail and rotating a plurality of slats in unfolding in the same direction around respective rotary shafts.SELECTED DRAWING: Figure 9C

Description

[Technical Field]

[0001] The present disclosure relates to an opening device. [Background technology]

[0002] Conventionally, a blind-type storm shutter has been known that is configured as an expander type by connecting multiple links in an X-shape so that they can rotate freely, and has two rage tongues with slats attached to the links (see, for example, Patent Document 1).

[0003] The two slat tongues are connected horizontally. When the two slat tongues are fully retracted, the opening is fully open. When one slat tongue is retracted and the other is extended, the opening is fully closed. Furthermore, when the opening is fully closed, by starting to extend one slat tongue and retracting the other slat tongue, a gap can be created between the slats. This blind shutter is configured to allow sufficient light and ventilation between the slats by expanding the gap until the inclination of each slat is approximately the same. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2008-285890 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the above-mentioned conventional technology, all slats can only be adjusted to the same angle when the lengths of the two slat tongues are matched, so when the opening is fully closed, it is not possible to freely control the amount of light and ventilation by adjusting all slats to the same angle.

[0006] An object of the present disclosure is to provide an opening device that allows all slats to be adjusted to the same arbitrary angle when the opening is in a fully closed state. [Means for solving the problem]

[0007] The present disclosure relates to an opening device comprising a guide rail attached to an opening in a building, a plurality of slats arranged so as to be independently movable along the guide rail, and a slat movement mechanism for moving the plurality of slats along the guide rail, configured to fully close the opening by unfolding the plurality of slats along the guide rail, and to fully open the opening by storing the slats so that they overlap along the guide rail, and having a slat rotation mechanism that is arranged along the extension direction of the guide rail and rotates the plurality of slats in the same direction around their respective rotation axes when unfolded. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of an opening device in a fully closed state in one embodiment, as viewed from the outside of the room. FIG. [Figure 2] FIG. 2 is a vertical cross-sectional view of an opening device in a fully closed state according to an embodiment. [Figure 3] FIG. 2 is a perspective view showing the configuration of a slat of the opening device in one embodiment. [Figure 4A] FIG. 10 is a plan view showing the operation of the slat when deployed. [Figure 4B] FIG. 10 is a plan view showing the operation of the slat when deployed. [Figure 4C] FIG. 10 is a plan view showing the operation of the slat when deployed. [Figure 5] FIG. 10 is a perspective view of the slats of the opening device in one embodiment being moved in the deployment direction, as viewed from the outside of the room. [Figure 6] FIG. 10 is a perspective view of the opening device when the slats have finished being deployed in one embodiment, as viewed from the outside of the room. [Figure 7]FIG. 10 is a perspective view of the state in which the slats of the opening device in one embodiment are moved in the storage direction, as viewed from the outside of the room. [Figure 8] FIG. 2 is a perspective view showing the configuration of a slat rotation mechanism of the opening device according to one embodiment. [Figure 9A] 10A and 10B are plan views showing the operation of the slat rotation mechanism. [Figure 9B] 10A and 10B are plan views showing the operation of the slat rotation mechanism. [Figure 9C] 10A and 10B are plan views showing the operation of the slat rotation mechanism. [Figure 10] 10A and 10B are diagrams illustrating the meshing operation of the toothed belt of the slat rotation mechanism with the gear of the slat. [Figure 11] FIG. 10 is a diagram illustrating the rotation angle of the slats. [Figure 12] FIG. 10 is a plan view showing the slats in the retracted state in another embodiment. [Figure 13] FIG. 10 is a side view showing the start of deployment of a slat in another embodiment. [Figure 14] FIG. 10 is a side view showing a slat in the middle of being deployed in another embodiment. [Figure 15] FIG. 10 is a side view showing the slat in another embodiment when deployment is completed. [Figure 16] FIG. 15 is a longitudinal cross-sectional view taken along line AA in FIG. [Figure 17] FIG. 16 is a vertical cross-sectional view taken along line BB in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment of the present disclosure will be described in detail with reference to the drawings. An opening device 1 according to this embodiment is disposed on the outdoor side X1 of a rectangular opening 100 (see FIG. 2) that opens into a building. The opening device 1 is configured to include an upper guide rail 2 disposed horizontally above the opening 100, a lower guide rail 3 disposed horizontally below the opening 100, a pair of vertical frames 4a, 4b disposed vertically on the left and right of the opening 100, a plurality of slats 5 that can open and close the opening 100, a slat moving mechanism 6 that moves all of the slats 5, and a slat rotating mechanism 7 that rotates all of the slats 5 in unison.

[0010] The opening device 1 of this embodiment is a horizontally opening / closing type opening device configured to be able to open and close the opening 100 using a plurality of slats 5. More specifically, the opening device 1 of this embodiment is a one-way sliding type horizontally opening / closing opening device that opens the opening 100 by storing all of the slats 5 so that they overlap on one side of the vertical frame 4a, and closes the opening 100 by deploying them toward the other vertical frame 4b. The opening device 1 shown in FIG. 1 is configured to open and close the opening 100 using eight slats 5, but the number of slats 5 is not limited to eight and is set appropriately depending on the width of one slat and the width of the opening 100.

[0011] Here, the directions in the figure are defined. X1-X2, indicated by arrows in the figure, indicate the indoor / outdoor directions. X1 indicates the outdoor side, and X2 indicates the indoor side. Y1-Y2 is the lateral direction of the opening device 1, and indicates the direction in which the opening 100 is opened and closed by the slats 5. Y1 is the closing direction in which the opening 100 is closed by the slats 5, and indicates the direction in which the slats 5 are deployed. Y2 is the opening direction in which the opening 100 is opened by the slats 5, and indicates the direction in which the slats 5 are stored. When the opening device 1 attached to the opening 100 is viewed from the front, the upward direction is defined as "up" and the downward direction is defined as "down".

[0012] The upper guide rail 2 extends along the Y1-Y2 direction. As shown in FIG. 2 , the upper guide rail 2 has a first storage chamber 21 and a second storage chamber 22 arranged above and below. A first groove 2a is formed in a partition wall separating the first storage chamber 21 arranged above from the second storage chamber 22 arranged below, through which a shaft 511 of a hoisting wheel 51 of a slat 5 (described later) is inserted. Rail portions 211, 211 on which a pair of wheels 512, 512 of the hoisting wheel 51 are rollably mounted are formed by partition wall portions sandwiching the first groove 2a. A second groove 2b is formed in the bottom wall of the upper guide rail 2, through which the shaft 511 of the hoisting wheel 51 is inserted. The first storage chamber 21, the second storage chamber 22, the first groove 2a, and the second groove 2b are formed over the entire length of the upper guide rail 2 in the longitudinal direction.

[0013] The lower guide rail 3 extends along the Y1-Y2 direction. As shown in Fig. 5, the lower guide rail 3 has a rail groove 31. The rail groove 31 extends over the entire length of the lower guide rail 3 in the longitudinal direction.

[0014] The slats 5 are made of a metal material such as aluminum, elongated in the vertical direction relative to the width direction, and thin plate-like members in the thickness direction. The slats 5 are provided across the upper guide rail 2 and the lower guide rail 3 and are independently movable laterally along the upper guide rail 2 and the lower guide rail 3. "Independently movable" means that adjacent slats 5 are not fixed together, and each slat 5 is movable in at least a direction narrowing the gap between adjacent slats 5 when the slats 5 move in the unfolding direction Y1 and the retracting direction Y2. However, the widthwise ends of adjacent slats 5 are configured to overlap each other in the indoor / outdoor direction so that no gap is formed between adjacent slats 5 when all slats 5 are unfolded in the fully closed state shown in FIG. 1 .

[0015] As shown in FIG. 2, each slat 5 has a hoisting wheel 51, a guide pin 52, and a gear 53.

[0016] The hoisting wheel 51 is provided at the center in the width direction at the upper end of the slat 5. As shown in FIG. 2 , the hoisting wheel 51 has a shaft 511 protruding upward from the slat 5 and a pair of wheels 512, 512 rotatably provided on the upper end of the shaft 511. The shaft 511 constitutes the upper rotation shaft of the slat 5 and is provided rotatably relative to the slat 5. The pair of wheels 512, 512 are accommodated in the first accommodation chamber 21 of the upper guide rail 2 and placed on the rail portions 211, 211. The shaft 511 is inserted into the first groove portion 2a and the second groove portion 2b of the upper guide rail 2. As a result, the slats 5 are attached in a suspended manner to the upper guide rail 2 and are configured to be movable along the upper guide rail 2.

[0017] The guide pin 52 is provided at the center of the width direction at the lower end of the slat 5 and protrudes downward from the slat 5. As shown in FIG. 2 , the guide pin 52 is provided coaxially with the shaft portion 511 of the hoisting wheel 51 and constitutes the lower rotation shaft of the slat 5. The guide pin 52 engages with the rail groove 31 of the lower guide rail 3. As a result, when the slat 5 moves, the lower end of the slat 5 slides and is guided within the rail groove 31 of the lower guide rail 3.

[0018] The gear 53 is disposed at the upper end of the slat 5 coaxially with the shaft 511 of the hoisting wheel 51 and protrudes upward. As shown in FIG. 2 , the gear 53 is disposed below the pair of wheels 512, 512 and accommodated in the second accommodation chamber 22 of the upper guide rail 2. The shaft 531 of the gear 53 is disposed coaxially on the outer periphery of the shaft 511 of the hoisting wheel 51. The shaft 531 of the gear 53 is rotatable relative to the shaft 511 of the hoisting wheel 51 but is non-rotatable relative to the slat 5. Therefore, when the gear 53 rotates, the slat 5 also rotates about the rotation axis (shaft 511 and guide pin 52) in conjunction with the rotation, but the shaft 511 of the hoisting wheel 51 does not rotate.

[0019] An upwardly protruding cubic block portion 54 is provided at the upper end of each slat 5. The shaft portion 531 of the gear 53 passes through the block portion 54 and protrudes upward. The block portion 54 is not fixed to the slat 5 or the shaft portion 531, but is provided so as to be rotatable around the shaft portion 531. Adjacent slats 5, 5 are connected by a connecting member 55, as shown in Figures 3, 4B, 4C, and 8. Each connecting member 55 is formed to have the same length.

[0020] The connecting member 55 is a member that can contract or flex so that adjacent slats 5, 5 can overlap each other when all slats 5 are stored on the vertical frame 4a side, and can maintain a constant distance between adjacent slats 5, 5 by expanding when the slats 5 move in the deployment direction Y1 when they are deployed toward the vertical frame 4b. The connecting member 55 of this embodiment is formed of a flexible string-like member. The string-like member is formed of, for example, metal fiber, resin fiber, or natural fiber. Although not shown, the connecting member 55 may be configured to connect adjacent slats 5, 5 using an expandable structure having a bellows shape, a pantograph shape, or the like.

[0021] As shown in Figures 4A and 4B, the slat movement mechanism 6 has a circular belt 61 and a motor 62 that rotates and drives the belt 61. The motor 62 is disposed on one end side in the longitudinal direction of the upper guide rail 2 (for example, on the vertical frame 4a side). The belt 61 is stretched between a drive pulley 63a attached to the rotary shaft of the motor 62 and a driven pulley 63b that is disposed on the other end side in the longitudinal direction of the upper guide rail 2 (for example, on the vertical frame 4b side).

[0022] The belt 61 is arranged at the same position as the block portion 54 of each slat 5 in the vertical height direction of the opening device 1. The block portion 54 of each slat 5 is arranged inside the circular belt 61. Of the multiple slats 5 provided in the opening device 1, only the block portion 54 of the slat 5a that is arranged at the front when moving in the deployment direction Y1 is fixed to the belt 61 by a fixing member 541.

[0023] Next, the movement of the slats 5 by the slat movement mechanism 6 when opening and closing will be described with reference to Figures 4A to 4C and Figures 5 to 7. Figures 4A to 4C show only four slats 5 to make it easier to understand the movement of the slats 5 by the slat movement mechanism 6.

[0024] As shown in Figure 4A, when all the slats 5 are stored so that they overlap each other and the opening 100 is fully open, when the motor 62 rotates the slats 5 to move them in the deployment direction Y1, the belt 61 rotates between the drive pulley 63a and the driven pulley 63b, and the leading slat 5a in the deployment direction Y1, which is fixed to the belt 61, begins to move toward the deployment direction Y1, as shown in Figure 4B.

[0025] When the movement of the slats 5a causes the connecting members 55 attached to the block portions 54 of the slats 5a to extend, the slats 5 adjacent to the leading slat 5a are pulled by the leading slat 5a and start to move together in the unfolding direction Y1. In the same manner, the connecting members 55 of each slat 5 extend sequentially, causing all of the slats 5 to move in the unfolding direction Y1, as shown in Figures 4C and 5. Because each connecting member 55 has the same length, when unfolding is complete, all of the slats 5 are arranged at equal intervals between the pair of vertical frames 4a, 4b, as shown in Figure 6.

[0026] When each slat 5 is moved in the storage direction Y2, the motor 62 is rotated in the reverse direction to move the leading slat 5a in the unfolding direction Y1 in the storage direction Y2. When the leading slat 5a moves in the storage direction Y2, each connecting member 55 is sequentially bent, and all of the slats 5 move in the storage direction Y2 as if they are sequentially pushed by the leading slat 5a, as shown in Fig. 7, until they are finally stored so that they overlap on the vertical frame 4a side.

[0027] As shown in FIG. 1 , when all slats 5 are arranged parallel to the surface direction and no gaps are formed between adjacent slats 5, the rotation angle of the slats 5 is set to 0 degrees. Driven by a slat rotation mechanism 7 (described later), each slat 5 can be rotated 90 degrees and moved in the unfolding direction Y1 and the retracted direction Y2. The slats 5 do not interfere with each other when moved in the unfolding direction Y1 and the retracted direction Y2, allowing for a slimmer fit when retracted. This allows the opening 100 inside the opening device 1 to be widely opened. To enable the slats 5 to move in the unfolding direction Y1 and the retracted direction Y2 when rotated 90 degrees, for example, a control unit may be provided that detects the rotation angle of the slat 5 using a sensor (not shown) and allows the slat 5 to move when it detects that the rotation angle of the slat 5 has reached 90 degrees.

[0028] 9A to 9C, the slat rotation mechanism 7 has a circular toothed belt 71 and a motor 72 that rotates the toothed belt 71. The motor 72 is disposed on one end side of the upper guide rail 2 in the longitudinal direction (for example, on the vertical frame 4a side).

[0029] The toothed belt 71 is made of, for example, a flexible rubber or resin belt, and has teeth 711 on its inner periphery. The toothed belt 71 is arranged at the same position as the gears 53 of each slat 5 in the vertical height direction of the opening device 1, and is housed together with the gears 53 in the second housing chamber 22 of the upper guide rail 2. The gears 53 of each slat 5 are arranged inside the circular toothed belt 71.

[0030] The toothed belt 71 meshes with a drive gear 73 attached to the rotation shaft of the motor 72, and is provided so as to be rotatable within the second housing chamber 22 by the rotation of the motor 72. The toothed belt 71 of this embodiment is a power transmission member that transmits power in the rotational direction to the gear 53 by rotating.

[0031] The length of the toothed belt 71 along the Y1-Y2 direction is slightly shorter than the distance between the drive gear 73 and the gear 53a of the leading slat 5a at the end of deployment when the toothed belt 71 is fully stretched away from the drive gear 73 while meshed with the drive gear 73. As shown in FIG. 9A , the toothed belt 71 is meshed with the drive gear 73 at one end of the second storage chamber 22 in the length direction (e.g., the vertical frame 4a side), but the end 71a located at the other end of the second storage chamber 22 in the length direction (e.g., the vertical frame 4b side) is free. Therefore, as shown in FIG. 9A , when the slat 5 is stored, the toothed belt 71 is not stretched and is accommodated in the second storage chamber 22 in a loosely flexed state while meshed with the drive gear 73.

[0032] When the slats 5 are moved in the deployment direction Y1 by the drive of the slat moving mechanism 6, the toothed belt 71 meshes with the gear 53a of the leading slat 5a that is in the middle of movement at its end 71a farthest from the drive gear 73, as shown in Fig. 10. Thereafter, the toothed belt 71 elongates as the leading slat 5a moves further, and at the end of deployment, the width in the X1-X2 direction between the drive gear 73 and the gear 53a becomes the narrowest. As a result, the toothed belt 71 meshes with all of the gears 53 arranged on the inside, as shown in Figs. 9B and 10.

[0033] After the slats 5 have finished unfolding, the motor 72 is driven to rotate with the gears 53 of all slats 5 meshing with the toothed belt 71, causing the toothed belt 71 to rotate, and the rotation is transmitted to each gear 53. As a result, as shown in FIG. 9C , all slats 5 rotate in the same direction around the rotation axis in conjunction with the rotation of the toothed belt 71. This allows the opening device 1 to admit light and ventilate with the slats 5 unfolded. By adjusting the direction and distance of rotation of the toothed belt 71, the direction and amount of light and ventilation admitted through the gaps between adjacent slats 5 can be freely set for all slats 5.

[0034] Figures 12 to 17 show a slat moving mechanism 6A according to another embodiment. Since parts with the same reference numerals as those in the slat moving mechanism 6 have the same configuration, detailed explanations of those parts will be omitted below, citing the above explanation. Figures 12 to 15 show only four slats 5 to facilitate understanding of the movement of the slats 5 by the slat moving mechanism 6A. The slat rotation mechanism 7 is not shown in Figures 12 to 15.

[0035] The slat movement mechanism 6A has multiple position restriction plates 64 made of plate-like members for restricting the position of each slat 5 when unfolded. The position restriction plates 64 are provided in the same number as the slats 5, and correspond one-to-one to the slats 5. The position restriction plates 64 are arranged at regular intervals along the upper guide rail 2 so as to face each other in the Y1-Y2 direction, and protrude downward. More specifically, the position restriction plates 64 are attached to the underside of the upper guide rail 2 at intervals identical to the intervals between the multiple slats 5 when unfolded, corresponding to the positions of each of the multiple slats 5.

[0036] Each of the position restriction plates 64, except for the position restriction plate 64a that is positioned furthest in the deployment direction Y1, has a notch 641 that extends in the up-down direction in the center of its width. The notch 641 communicates with the second groove 2b in the bottom surface of the upper guide rail 2 and opens downward. Therefore, each of the position restriction plates 64, except for the position restriction plate 64a, is composed of a pair of plate-like members with the notch 641 sandwiched between them. The width of the notch 641 in the X1-X2 direction is formed so that the shaft 531 of the gear 53 of each slat 5 can pass through without interference.

[0037] 13 to 15, the position restricting plates 64 are formed so that the height they protrude downward from the upper guide rail 2 gradually increases along the unfolding direction Y1. That is, the position restricting plate 64a disposed closest to the unfolding direction Y1 has the greatest protrusion height, and the protrusion height of the position restricting plates 64 gradually decreases toward the storage direction Y2. The position restricting plate 64d disposed closest to the storage direction Y2 has the smallest protrusion height.

[0038] Each position restricting plate 64 is provided so as to abut only against the block portion 54 of the corresponding slat 5. Specifically, the length of each slat 5 in the up-down direction, the position of the hoist 51, and the position of the guide pin 52 are the same, but the protruding height of the block portion 54 of each slat 5 extending upward from the slat 5 is formed to gradually decrease in the unfolding direction Y1, in contrast to the position restricting plate 64. That is, the protruding height of the block portion 54a of the slat 5a located closest to the unfolding direction Y1 is the smallest, and the protruding height of the block portion 54 increases sequentially in the retracting direction Y2. The protruding height of the block portion 54d of the slat 5d located closest to the retracting direction Y2 is the greatest.

[0039] The block portion 54 of each slat 5 constitutes an abutment portion that abuts only against the corresponding position restriction plate 64 when the slat 5 moves in the deployment direction Y1. Specifically, the protruding height of the block portion 54a of the leading slat 5a in the deployment direction Y1 is formed so that, when deployed, it passes below the position restriction plates 64d, 64c, and 64b and abuts against the position restriction plate 64a that is located closest to the deployment direction Y1. The protruding height of the block portion 54b of the second slat 5b in the deployment direction Y1 is formed so that, when deployed, it passes below the position restriction plates 64d and 64c and abuts against the position restriction plate 64b. The protruding height of the block portion 54c of the third slat 5c in the deployment direction Y1 is formed so that, when deployed, it passes below the position restriction plate 64d and abuts against the position restriction plate 64c. The protruding height of the block portion 54d of the slat 5d that is located closest to the storage direction Y2 is formed so that it abuts against the position restriction plate 64d when deployed. Fig. 16 shows the state in which the block portion 54a of the slat 5a passes under the position restriction plate 64c, and Fig. 17 shows the state in which the block portion 54c of the slat 5c abuts against the position restriction plate 64c corresponding to that slat 5c.

[0040] Instead of the connecting member 55, each block portion 54 is provided with a magnetic member 56 that attracts adjacent slats 5, 5 to each other when all of the slats 5 are stored so that they overlap each other. The magnetic member 56 is, for example, a magnet. In Figures 13 to 15, adjacent block portions 54, 54 are attracted to each other by the magnetic members 56, 56, but if the block portions 54 are made of a magnetically attractable metal material, the magnetic member 56 may be provided on only one of the opposing surfaces of adjacent block portions 54, 54.

[0041] The movement operation of the slat movement mechanism 6A when opening and closing the slats 5 will now be described. As shown in Figures 12 and 13, when the slats 5 are stored, all of the slats 5 overlap one another and are attracted to the magnetic members 56. From this state, when the motor 62 is driven to rotate and start the unfolding operation of the leading slat 5a fixed to the belt 61, all of the slats 5, attracted and overlapping, start to move toward the position restriction plate 64d closest to the storage direction Y2.

[0042] Because the position restriction plate 64d has the smallest protruding height, the block portion 54a of the leading slat 5a through the block portion 54c of the third slat 5c pass below the position restriction plate 64d and do not come into contact with the position restriction plate 64d. The shaft portions 531 of the gears 53 of the slats 5a to 5c pass through the notches 641 in the position restriction plate 64d. In contrast, the block portion 54d of the slat 5d closest to the storage direction Y2 comes into contact with the position restriction plate 64d. This releases the slat 5d from its adhesive bond with the adjacent slat 5c and stops it at the position where it comes into contact with the position restriction plate 64d.

[0043] Similarly, each of the block portions 54a to 54c of the slats 5a to 5c that have passed through the position restriction plate 64d sequentially comes into contact with only the corresponding position restriction plate 64a to 64c and stops at the position where it comes into contact with the respective position restriction plate 64a to 64c. As a result, when deployment is complete, all of the slats 5 are arranged between the pair of vertical frames 4a, 4b at the same equal intervals as the position restriction plates 64, as shown in Figure 15.

[0044] When each slat 5 is moved toward the storage direction Y2, the motor 62 is rotated in the reverse direction to move the leading slat 5a in the unfolding direction Y1 toward the storage direction Y2. As the leading slat 5a moves toward the storage direction Y2, each slat 5 moves in the storage direction Y2 while being attracted sequentially by the magnetic member 56, and is finally stored so that they overlap on the vertical frame 4a side.

[0045] The opening device 1 according to this embodiment has the following advantages. Specifically, the opening device 1 includes upper and lower guide rails 2 and 3 attached to an opening 100 in a building, a plurality of slats 5 provided so as to be independently movable along the upper and lower guide rails 2 and 3, and a slat movement mechanism 6 that moves the plurality of slats 5 along the upper and lower guide rails 2 and 3. The opening device 1 is configured to fully close the opening 100 by moving the plurality of slats 5 in an unfolding direction Y1 along the upper and lower guide rails 2 and 3, and to fully open the opening 100 by moving the plurality of slats 5 in a retracting direction Y2 so as to overlap along the upper and lower guide rails 2 and 3. The opening device 1 also includes a slat rotation mechanism 7 that is disposed along the extension direction of the upper guide rail 2 and rotates the plurality of slats 5 in the same direction when unfolded about the shafts 511 and guide pins 52 that are their respective rotation axes. Thus, when the opening 100 is fully closed, the angles of all of the slats 5 can be adjusted to the same arbitrary angle by operating the slat rotation mechanism 7.

[0046] In this embodiment, each of the multiple slats 5 has a shaft 511, which is a rotation axis, and a gear 53, which is provided coaxially with the guide pin 52, and the slat rotation mechanism 7 has a toothed belt 71, which is disposed along the extension direction of the upper guide rail 2 and is a power transmission member that meshes with each of the gears 53 of the multiple slats 5 when deployed and rotates to transmit power in the rotational direction to the gear 53. In this way, by rotating the toothed belt 71, all of the slats 5 can be linked together and adjusted to the same arbitrary angle.

[0047] In this embodiment, the toothed belt 71 is formed in a ring shape, accommodates the gears 53 of the multiple slats 5 inside, and is configured to mesh with the gears 53 of the multiple slats 5 when the gear 53a of the slat 5a located at the front in the unfolding direction Y1 is located at the unfolding end position. This prevents the toothed belt 71 from interfering with the gears 53 of the slats 5 while the slats 5 are moving in the unfolding direction Y1.

[0048] In this embodiment, adjacent slats 5, 5 are connected to each other by a connecting member 55. Accordingly, by simply moving only the slats 5 arranged on the deployment direction Y1 side, all of the slats 5 can be moved in the deployment direction Y1 and the storage direction Y2.

[0049] In this embodiment, each of the multiple slats 5 has a magnetic member 56, and when stored, adjacent slats 5, 5 are attracted to each other by the magnetic member 56. As a result, even when adjacent slats 5, 5 are completely separated, all of the slats 5 can be moved in the deployment direction Y1 and the storage direction Y2 simply by moving the slat 5 arranged in the deployment direction Y1. Because only the magnetic member 56 is interposed between adjacent slats 5, 5, the storage state of the slats 5 can be made even more compact.

[0050] In this embodiment, the system has a plurality of position restriction plates 64 that are arranged at regular intervals along the upper guide rail 2 and protrude toward the plurality of slats 5. The plurality of position restriction plates 64 are arranged to correspond to the positions of the plurality of slats 5 when unfolded, and are formed so that their protruding height increases toward the unfolding direction Y1. The plurality of slats 5 each have a block portion 54 that is an abutment portion that is formed so that its height gradually decreases toward the unfolding direction Y1 so as to abut only against the corresponding position restriction plate 64. This allows the slats 5 to be arranged at equal intervals when unfolded, even if adjacent slats 5, 5 are not connected by a connecting member.

[0051] In this embodiment, the slat rotation mechanism 7 is configured to be able to move in the unfolding direction Y1 and the retracting direction Y2 with the plurality of slats 5 rotated 90 degrees, assuming that the rotation angle of the slats 5 when no gaps are formed between adjacent slats 5, 5 is 0 degrees. This prevents the slats 5 from interfering with each other when moving in the unfolding direction Y1 and the retracting direction Y2, allowing for a slimmer fit when retracted. This allows the opening 100 inside the opening device 1 to be opened widely.

[0052] In the above embodiment, the slat moving mechanism 6 is configured to move each slat 5 by rotational driving of the motor 62, but the slat moving mechanism may also be configured to move each slat 5 in the deployment direction Y1 and the storage direction Y2, for example, by the user pulling the operating cord.

[0053] The power transmission member of the slat rotation mechanism 7 is not limited to the toothed belt 71. The power transmission member may be, for example, a chain. In this case, the gear 53 is formed by a sprocket that meshes with the chain.

[0054] The slat rotation mechanism 7 is not limited to one that rotates each slat 5 by the rotational drive of the motor 72. The slat rotation mechanism may be configured to rotate each slat 5, for example, by the user pulling an operating cord.

[0055] In the above embodiment, a single-pull type opening device 1 is shown in which the plurality of slats 5 are moved toward one of the vertical frames 4a when the opening 100 is fully opened, but the opening device of the present disclosure may be a double-pull type opening device in which two sets of the same plurality of slats 5 are provided horizontally. Furthermore, in the above embodiment, an opening device 1 is shown in which the opening 100 is opened and closed by moving the plurality of slats 5 horizontally, but the opening device of the present disclosure may be an opening device in which the opening 100 is opened and closed by moving the plurality of slats vertically.

[0056] The present disclosure includes an opening device according to the following aspects. <Aspect 1> A guide rail attached to an opening in a building; a plurality of slats provided so as to be independently movable along the guide rail; a slat moving mechanism that moves the plurality of slats along the guide rail; Equipped with An opening device configured to fully close the opening by moving the plurality of slats in a deployment direction along the guide rail, and to fully open the opening by moving the plurality of slats in a storage direction so as to overlap along the guide rail, An opening device having a slat rotation mechanism that is arranged along the extension direction of the guide rail and rotates the multiple slats in the same direction around their respective rotation axes when deployed.

[0057] <Aspect 2> Each of the plurality of slats has a gear provided coaxially on the rotation shaft, The slat rotation mechanism of the opening device described in aspect 1 has a power transmission member that is arranged along the extension direction of the guide rail, engages with the gears of the multiple slats when deployed, and rotates to transmit rotational power to the gears.

[0058] <Aspect 3> The opening device described in aspect 2, wherein the power transmission member is formed in an annular shape and houses the gears of the multiple slats inside, and is configured to mesh with the gears of the multiple slats when the gear of the slat located at the front of the deployment direction is located at the end deployment position.

[0059] <Aspect 4> 4. The opening device according to any one of aspects 1 to 3, wherein adjacent slats are connected to each other by a connecting member.

[0060] <Aspect 5> Each of the plurality of slats has a magnetic member, 4. The opening device according to any one of aspects 1 to 3, wherein the adjacent slats are attracted to each other by the magnetic members when stored.

[0061] <Aspect 6> a plurality of position restriction plates arranged at regular intervals along the guide rail and protruding toward the plurality of slats; The plurality of position restriction plates are arranged corresponding to the positions of the plurality of slats when deployed, and are formed so that their protruding height increases toward the deployment direction, The opening device according to aspect 5, wherein each of the plurality of slats has an abutment portion that is formed so as to gradually decrease in height in the deployment direction so as to abut only against the corresponding position restriction plate.

[0062] <Aspect 7> An opening device described in any of aspects 1 to 6, wherein the slat moving mechanism is configured to be movable in the deployment direction and the storage direction when the multiple slats are rotated 90 degrees, when the rotation angle of the slats is 0 degrees when no gaps are formed between adjacent slats. [Explanation of symbols]

[0063] 1 Opening device, 2 Upper guide rail, 3 Lower guide rail, 5 Slat, 511 Shaft portion 511 (rotating shaft), 52 Guide pin (rotating shaft), 53 Gear, 55 Connecting member, 56 Magnetic member, 6 Slat moving mechanism portion, 64 Position restricting plate, 7 Slat rotating mechanism portion, 71 Toothed belt (power transmission member), 100 Opening, Y1 Deployment direction, Y2 Storage direction

Claims

1. A guide rail attached to an opening in a building; a plurality of slats provided so as to be independently movable along the guide rail; a slat moving mechanism that moves the plurality of slats along the guide rail; Equipped with An opening device configured to fully close the opening by moving the plurality of slats in a deployment direction along the guide rail, and to fully open the opening by moving the plurality of slats in a storage direction so as to overlap along the guide rail, An opening device having a slat rotation mechanism that is arranged along the extension direction of the guide rail and rotates the multiple slats in the same direction around their respective rotation axes when deployed.

2. Each of the plurality of slats has a gear provided coaxially on the rotation shaft, The opening device described in claim 1, wherein the slat rotation mechanism is arranged along the extension direction of the guide rail, and has a power transmission member that meshes with each of the gears of the multiple slats when deployed and rotates to transmit rotational power to the gears.

3. The opening device according to claim 2, wherein the power transmission member is formed in an annular shape and accommodates the gears of the plurality of slats inside, and is configured to mesh with the gears of the plurality of slats when the gear of the slat located at the front in the deployment direction is located at the deployment end position.

4. The opening device according to any one of claims 1 to 3, wherein adjacent slats are connected to each other by a connecting member.

5. Each of the plurality of slats has a magnetic member, The opening device according to any one of claims 1 to 3, wherein the adjacent slats are attracted to each other by the magnetic member when stored.

6. a plurality of position restriction plates arranged at regular intervals along the guide rail and protruding toward the plurality of slats; The plurality of position restriction plates are arranged corresponding to the positions of the plurality of slats when deployed, and are formed so that their protruding height increases toward the deployment direction, 6. The opening device according to claim 5, wherein each of the plurality of slats has a contact portion formed so as to gradually decrease in height in the deployment direction so as to contact only the corresponding position restriction plate.

7. An opening device as described in any one of claims 1 to 3, wherein the slat moving mechanism is configured to be movable in the deployment direction and the storage direction when the plurality of slats are rotated 90 degrees when the rotation angle of the slats is 0 degrees when no gaps are formed between adjacent slats.

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