Shutter device

Abstract

To provide a shutter device capable of preventing slats from coming off from a guide rail when a flying object collides therewith.SOLUTION: A shutter device 10 includes: a shutter curtain 3 that consists of multiple slats 2 that extends in the horizontal direction and is connected in the vertical direction; a guide rail 4 that supports the ends of the shutter curtain 3 in the horizontal direction; and a slat support 5 that has an outer abutment portion abutting against slats 2 and an inner contact part that contacts a sash frame of the fitting provided on the indoor side of the shutter curtain 3.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a shutter device.

Background Art

[0002] Patent Document 1 discloses a shutter device having a slat curtain. This device includes a middle post provided on the back side of the slats, and a movable member for fixing the slats attached to this middle post. By connecting this movable member and the slat curtain, the slat curtain is configured to be fixed. The movable member of the middle post has a protrusion that enters the hole of the slat, and this protrusion enters the engaging hole that opens toward the indoor side of the slat. By moving the protrusion that has entered the hole up and down, the protrusion is prevented from coming out of the hole, and the middle post is connected to the slats.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Patent Document 1 discloses a technique of providing a middle post provided on the back side of the slats, but does not disclose a technique for coping with a large impact when a flying object collides with the shutter.

[0005] One object of the present disclosure is to provide a shutter device in which the slats are difficult to come off the guide rail when a flying object collides.

Means for Solving the Problems

[0006] To solve the above problems, a shutter device according to an aspect of the present disclosure includes a shutter curtain formed by vertically connecting a plurality of slats extending in the lateral direction, a guide rail that supports the lateral ends of the shutter curtain, an outer contact portion that contacts the slats, and an inner contact portion that contacts a frame of a fitting provided on the indoor side of the shutter curtain, and a slat support portion having the inner contact portion.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Modes for Carrying Out the Invention

[0008] The inventor of the present application studied shutters and obtained the following new recognition. High-speed flying objects caused by strong winds such as typhoons may collide with the shutters provided at the openings of buildings, causing the glass of the sash on the indoor side of the shutters to break. In this case, there is a concern that the glass may fly into the room and that strong winds may enter the room and blow off the roof, causing significant damage.

[0009] Such glass breakage occurred when the end of the shutter slat came off the guide rail due to the impact of the flying object (hereinafter referred to as "slat detachment"), and the slat collided with the glass together with the flying object. Therefore, by suppressing the slat detachment when the flying object collides, the glass breakage can be reduced. Hereinafter, a technique for suppressing slat detachment will be described with reference to the embodiments.

[0010] Hereinafter, an example of the embodiment will be described. The same reference numerals are assigned to the same components, and redundant descriptions are omitted. In each drawing, for the sake of convenience of explanation, a part of the components may be appropriately omitted, enlarged, or reduced. The drawings should be viewed in accordance with the direction of the reference numerals. The structures and shapes referred to in this specification include not only the structures and shapes that exactly match the content referred to, but also the structures and shapes that are deviated by the amount of errors such as dimensional errors and manufacturing errors. In each drawing, some of the members that are not important for explaining the embodiment are omitted from the display.

[0011] Terms including ordinal numbers such as first and second are used to explain various components. This term is used only for the purpose of distinguishing one component from another, and the configuration of the present disclosure is not limited by this term. The following embodiments are exemplified to assist in understanding the content of the present disclosure and do not limit the configuration of the present disclosure.

[0012] [Embodiment] Refer to FIGS. 1-6. An embodiment of the present disclosure is a shutter device 10. The shutter device 10 is preferably provided for opening and closing an opening such as a window or an entrance / exit of a building. In the embodiment, as shown in FIG. 1, the shutter device 10 is provided to cover the outdoor side of a rectangular window 98 provided in an opening 94 of a wall surface 92. In the embodiment, the shutter device 10 mainly includes a shutter curtain 3, a guide rail 4, and a slat support portion 5. FIG. 1 shows a state where the shutter curtain 3 is fully closed, and FIG. 2 shows a state where the shutter curtain 3 is fully opened and the window 98 is visible.

[0013] Hereinafter, for convenience, the opening and closing direction of the shutter curtain 3 is referred to as the "vertical direction", the direction along the width of the shutter curtain 3 is referred to as the "horizontal direction", and the direction orthogonal to the vertical direction and the horizontal direction is referred to as the "front-rear direction". In the front-rear direction, the side on which the shutter device 10 is arranged with respect to the window 98 is referred to as the "outdoor side", and the opposite side is referred to as the "indoor side". In this example, the horizontal direction and the front-rear direction are horizontal directions, and the vertical direction is a direction along the up and down. Such a notation of directions does not limit the posture of the shutter device 10, and the shutter device 10 can be used in any posture. The horizontal dimension may be denoted as the "horizontal width", the vertical dimension as the "vertical width", and the front-rear dimension as the "front-rear width". In the horizontal direction, the direction from the end of the shutter curtain 3 toward the center is referred to as "inward" or "inward direction", and the opposite is referred to as "outward" or "outward direction".

[0014] The shutter curtain 3 is configured by connecting a plurality of slats 2 extending in the horizontal direction in the vertical direction. As shown in FIG. 1, the plurality of slats 2 includes normal slats 22 and reinforcing slats 24 (shown by hatching) which will be described later. The guide rail 4 supports the horizontal ends of the shutter curtain 3. In this example, two guide rails 4 are provided horizontally apart so as to support both ends of the shutter curtain 3. The two guide rails 4 are fixed to the wall surface 92 with the opening 94 therebetween.

[0015] From the perspective of suppressing damage caused by flying objects, when a flying object collides with the shutter curtain 3, it is desirable that the slats 2 do not come off the guide rails 4. Therefore, the embodiment has a slat support portion 5 that supports the slats 2 in the front-rear direction. As shown in FIG. 3, the slat support portion 5 has an outer contact portion 52 that contacts the slats 2 and an inner contact portion 54 that contacts the shoji frame 82 of the fitting 8 provided on the indoor side of the shutter curtain 3. The fitting 8 is attached to the window 98. The fitting 8 will be described later.

[0016] The slat support portion 5 is interposed between the slats 2 and the shoji frame 82 of the fitting 8, and when a flying object collides, it restricts the movement of the slats 2 in the front-rear direction. The slats 2 are supported by the slat support portion 5, thereby suppressing deformation due to the collision.

[0017] The outer contact portion 52 in this example contacts the lateral intermediate region of the slats 2, which is a region near the bisecting line M that bisects the lateral width of the slats 2. As an example, the lateral intermediate region may be in the range of 30% or more and 70% or less from one end in the lateral direction when the lateral width of the slats 2 is 100%.

[0018] Since the collision range of flying objects is not constant, it is desirable to support a wide range of slats 2 in the vertical direction. Therefore, in the embodiment, the slat support portion 5 has a columnar portion 56 that extends in the vertical direction beyond the range of two or more slats 2. As an example, when the vertical dimension of the exposed portion exposed to the outdoor side of the shutter curtain 3 is 100% in the state where the shutter curtain 3 is closed, the columnar portion 56 may extend in the vertical direction over a range of 30% or more. The vertical width of the columnar portion 56 is more preferably 50% or more of the exposed portion, further preferably 70% or more, and is 100% in the embodiment.

[0019] This specification describes a fitting. The fitting includes a shoji screen and a shoji screen support frame that surrounds the periphery of the shoji screen and supports the shoji screen. The shoji screen support frame includes those that support the shoji screen movably and those that support the shoji screen immovably. The shoji screen support frame may also be referred to as a window frame or a fitting frame. The shoji screen includes a shoji screen body and a shoji screen frame that surrounds the periphery of the shoji screen body and supports the shoji screen body. The shoji screen frame may also be referred to as a frame. Examples of the type of shoji screen body include glass, a net body, etc. In this specification, the frame of the fitting includes the shoji screen support frame and the shoji screen frame.

[0020] Mainly with reference to FIGS. 2 and 3, the fitting 8 of the embodiment will be described. The fitting 8 includes a glass shoji screen 85 (which may be referred to as a sash) disposed on the indoor side and a net body shoji screen 81 (which may be referred to as a screen door) disposed on the outdoor side of the glass shoji screen 85. The shoji screen body of the glass shoji screen 85 is glass 86, and the shoji screen body of the net body shoji screen 81 is a net body 83. In this example, the shoji screen support frame 80 supports the glass shoji screen 85 and the net body shoji screen 81 together as a single unit.

[0021] The net body shoji screen 81 has a rectangular net body 83 and a shoji screen frame 82 that supports the four sides of the net body 83. The net body 83 may be an insect screen for preventing the intrusion of foreign objects such as insects into the room. The glass shoji screen 85 has a rectangular glass 86 (double glass in this example) and a shoji screen frame 84 that supports the four sides of the glass 86. In the embodiment, the frame of the fitting 8 that abuts against the inner abutting portion 54 is the shoji screen frame 82 of the net body shoji screen 81.

[0022] As shown in FIG. 2, the shoji screen frame 82 includes two vertical shoji screen frames 821, 822 that extend in the vertical direction and two horizontal shoji screen frames 823, 824 that extend in the horizontal direction. The two vertical shoji screen frames 821, 822 are arranged apart in the horizontal direction. The horizontal shoji screen frame 823 is spanned across the upper ends of the vertical shoji screen frames 821, 822, and the horizontal shoji screen frame 824 is spanned across the lower ends of the vertical shoji screen frames 821, 822.

[0023] The shoji frame 82 has a vertical width substantially equal to the vertical width of the window 98 and a horizontal width approximately half of the horizontal width of the window 98. Therefore, as shown in FIG. 2, with the vertical shoji frame 821 approaching the lateral end of the shoji support frame 80, the vertical shoji frame 822 is positioned at the lateral center of the window 98.

[0024] The inner contact portion 54 of the slat support portion 5 will be described mainly with reference to FIGS. 1-4. In the embodiment, the indoor side surface of the columnar portion 56 constitutes the inner contact portion 54 that contacts the shoji frame 82 of the fixture 8.

[0025] From the perspective of dispersing the impact of flying objects, it is desirable that the contact range of the inner contact portion 54 with the shoji frame 82 is wide. Therefore, in the embodiment, when the vertical range (vertical width) of the shoji frame 82 of the fixture 8 is taken as 100%, the inner contact portion 54 is configured to contact a portion of 50% or more of the vertical range of the shoji frame 82 of the fixture 8. The contact range of the inner contact portion 54 with the shoji frame 82 of the fixture 8 is more preferably 70% or more, and is 100% in the embodiment. In this example, the columnar portion 56 has a vertical width substantially equal to the vertical width of the shoji frame 82 of the fixture 8, and the inner contact portion 54 is provided over the entire vertical range of the indoor side of the columnar portion 56.

[0026] Recesses may be provided in the floor and ceiling to support the slat support portion, and the upper and lower ends of the slat support portion may be fitted into these recesses. From the perspective of facilitating attachment and detachment, in the embodiment, as shown in FIG. 4, the slat support portion 5 has an engaging portion 58 that engages with the shoji frame 82 (vertical shoji frame 822) of the fixture 8. There is no limitation on the configuration of the engaging portion 58. In this example, the fitting plate-shaped portion 826 provided on the vertical shoji frame 822 and the fitting groove 582 provided on the engaging portion 58 are fitted to each other, whereby the slat support portion 5 engages with the vertical shoji frame 822. In other words, the inner contact portion 54 and the engaging portion 58 form a fitting groove 582 therebetween. When the fitting plate-shaped portion 826 is inserted into the fitting groove 582, it is clamped on both sides of the fitting groove 582 by the elasticity of the engaging portion 58.

[0027] The fitting plate-like portion 826 is a flat plate-like portion that extends in the vertical direction on the outdoor side of the vertical shoji frame 822. The fitting groove 582 is a linear recess formed in the vertical direction on the indoor side of the inner contact portion 54 of the slat support portion 5, and has a shape that allows the fitting plate-like portion 826 to be inserted and removed. The engaging portion 58 has elasticity capable of self-retaining the state when the slat support portion 5 is engaged with the vertical shoji frame 822.

[0028] The vertical range of the engaging portion 58 is preferably 30% or more, more preferably 50% or more, and is 100% in the embodiment, of the vertical range of the shoji frame 82 (vertical shoji frame 822). Note that the engaging portion 58 may have a shape that fits into a fitting recess provided in the vertical shoji frame 822.

[0029] The outer contact portion 52 of the slat support portion 5 will be mainly described with reference to FIGS. 1-4. In the embodiment, the outdoor side surface of the columnar portion 56 constitutes the outer contact portion 52 that contacts the slat 2. In this example, the outer contact portion 52 is provided over the entire vertical range on the indoor side of the columnar portion 56. From the viewpoint of alleviating the impact when a flying object collides, it is desirable that the slat support portion 5 has a predetermined impact absorption performance. Therefore, in the embodiment, as shown in FIG. 4, the outer contact portion 52 has a convex curved surface 522 that is convex toward the slat 2. By adjusting the curvature of the convex curved surface 522, the desired impact absorption performance can be realized. The radius of curvature of the convex curved surface 522 in plan view may be set in the range of 30% or more and 70% or less of the lateral width of the columnar portion 56, and is set to 50% in this example.

[0030] In the embodiment, the columnar portion 56 has a hollow portion sandwiched between the outer contact portion 52 and the inner contact portion 54, and is, for example, an extruded material made of resin. The columnar portion 56 may be an extruded material made of a metal material such as aluminum. The columnar portion 56 has elasticity in the front-rear direction, and can absorb a part of the impact of the flying object by this elasticity.

[0031] The reinforcing slat 24 will mainly be described with reference to FIGS. 1, 5, and 6. It is desirable to have high impact resistance against flying objects. Thus, in the embodiment, the plurality of slats 2 include a reinforcing slat 24 having a reinforcing member 6 provided by overlapping on the indoor side of the slat main body 21. Note that a slat 2 without the reinforcing member 6 is denoted as a slat 22. A part of the plurality of slats 2 constituting the shutter curtain 3 may be the reinforcing slat 24 and the other part may be the slat 22, or all of them may be the reinforcing slat 24.

[0032] The reinforcing member 6 is a plate-shaped member whose lateral width is longer than its longitudinal width (hereinafter referred to as "horizontally long"), and is formed of, for example, an iron-based metal. The reinforcing member 6 is fixed to the slat main body 21 using a fastener such as a bolt 63 while being in contact with the indoor side of the slat main body 21. The reinforcing member 6 is arranged so as to contact the outer contact portion 52 of the slat support portion 5. The lateral width of the reinforcing member 6 is larger than the lateral width of the outer contact portion 52. When the lateral width of the outer contact portion 52 is taken as 100%, the lateral width of the reinforcing member 6 is preferably 150% or more, more preferably 200% or more, and even more preferably 300% or more.

[0033] The reinforcing member 6 may be a single member or may include a plurality of members. In the embodiment, the reinforcing member 6 includes a movable member 64 that can be engaged with the guide rail 4 by moving in the lateral direction. As shown in FIGS. 5 and 6, the reinforcing member 6 includes an intermediate member 62 that contacts the outer contact portion 52 and two movable members 64 arranged on both lateral sides of the intermediate member 62. The intermediate member 62 and the movable member 64 are horizontally long plate-shaped members, and the lateral width of the movable member 64 is larger than the lateral width of the intermediate member 62. The movable member 64 is supported so as to be slidable in the lateral direction by a guide 28 provided on the slat main body 21.

[0034] The movable member 64 is connected to the intermediate member 62 via the link member 65. By changing the posture of the link member 65, the movable member 64 moves outward in the lateral direction, and as shown in FIG. 6, the tip portion 642 of the movable member 64 protrudes laterally from the slat body 21. The tip portion 642 of the movable member 64 is configured to be engageable with the guide rail 4, and in this example, it has a bent portion 644 that bends inward. As shown in FIG. 5, the movable member 64 moves inward in the lateral direction by changing the posture of the link member 65.

[0035] In the disaster prevention mode where there is a possibility of flying objects flying in, with the shutter curtain 3 closed, the movable member 64 can be protruded from the slat body 21, and the tip portion 642 can be locked to the guide rail 4. In this state, the shutter curtain 3 is firmly supported by the guide rail 4, and it becomes difficult for the slats 2 to come off the guide rail 4. In the disaster prevention mode, the slat support portion 5 is engaged with the shoji frame 82 of the fitting 8 and attached to the fitting 8. In this state, the shutter curtain 3 is also supported in the plane direction.

[0036] In the normal mode where the possibility of flying objects flying in is low, the slat support portion 5 is removed from the shoji frame 82 of the fitting 8. By moving the movable member 64 closer to the intermediate member 62 side, the tip portion 642 retracts laterally and the lock with the guide rail 4 is released. In this state, the shutter curtain 3 can be opened and closed in the vertical direction.

[0037] The shutter curtain 3 may be entirely composed of the reinforcing slats 24, or a part of it may be composed of the reinforcing slats 24. When a flying object collides with the central portion in the vertical direction, the slats 2 may easily come off the guide rail 4, and it is desirable to strengthen the central portion. Therefore, in the embodiment, as shown in FIG. 1, when the vertical dimension of the exposed portion of the shutter curtain 3 exposed to the outdoor side is set to 100% with the shutter curtain 3 closed, at least one reinforcing slat 24 is arranged in the range of 30% or more and 70% or less from the vertical end of the exposed portion.

[0038] The features of the shutter device 10 configured as described above will be described. The shutter device 10 includes a shutter curtain 3 formed by vertically connecting a plurality of slats 2 extending in the horizontal direction, a guide rail 4 that supports the horizontal end portions of the shutter curtain 3, an outer contact portion 52 that contacts the slat 2, and an inner contact portion 54 that contacts a shoji frame 82 of a fitting 8 provided on the indoor side of the shutter curtain 3. The shutter device 10 further includes a slat support portion 5 having the above components.

[0039] According to this configuration, since the slats 2 are supported by the fitting 8, it is possible to reduce the detachment of the slats due to flying objects and thus reduce the risk of glass breakage when the shutter is pulled.

[0040] In an embodiment, the slat support portion 5 has a columnar portion 56 that extends vertically beyond the range of two or more slats 2. In this case, a wide range of slats 2 in the vertical direction can be supported.

[0041] In an embodiment, when the vertical range of the shoji frame 82 of the fitting 8 is taken as 100%, the inner contact portion 54 contacts a portion of the vertical range of the shoji frame 82 of the fitting 8 that is 50% or more. In this case, the impact of flying objects can be dispersed in the vertical direction.

[0042] In an embodiment, the slat support portion 5 has an engagement portion 58 that engages with the shoji frame 82 of the fitting 8. In this case, since the slat support portion 5 is supported by the shoji frame 82, it can be easily attached and detached. It is not necessary to provide a recess in the floor, ceiling, etc. to support the slat support portion 5.

[0043] In an embodiment, the outer contact portion 52 has a convex curved surface 522 that protrudes toward the slat 2. In this case, the impact when a flying object collides can be mitigated.

[0044] In an embodiment, the plurality of slats 2 includes reinforced slats 24 having a reinforcing member 6 provided on the indoor side of the slat body 21. In this case, the impact resistance against flying objects can be improved.

[0045] In the embodiment, the reinforcing member 6 includes a movable member 64 that can be engaged with the guide rail 4 by moving in the lateral direction. In this case, the tip 642 of the movable member 64 can be locked to the guide rail 4.

[0046] In the embodiment, when the vertical dimension of the exposed portion exposed to the outdoor side of the shutter curtain 3 in the state where the shutter curtain 3 is closed is taken as 100%, at least one reinforcing slat 24 is arranged in the range of 30% or more and 70% or less from the vertical end of the exposed portion. In this case, the central portion of the shutter curtain 3 can be strengthened.

[0047] Hereinafter, modified examples will be described. In the drawings and descriptions of the modified examples, the same or equivalent components and members as those in the embodiment are denoted by the same reference numerals. Descriptions overlapping with the embodiment are omitted as appropriate, and the configurations different from the embodiment are mainly described.

[0048] [First Modified Example] The shutter device 10 of the first modified example will be described with reference to FIGS. 7 and 8. This modified example is different from the embodiment in that it includes a lateral support portion 77, and the other configurations are the same. Therefore, overlapping descriptions are omitted, and the lateral support portion 77 will be mainly described.

[0049] From the viewpoint of dispersing the impact of flying objects in the lateral direction, it is desirable that the lateral contact range of the slat support portion 5 with respect to the shoji frame 82 is wide. Therefore, in this modified example, the slat support portion 5 further includes a lateral support portion 77 that extends laterally and contacts the shoji frame 82 of the fixture 8. FIG. 7 shows a state in which the lateral support portion 77 is connected to the columnar portion 56. The lateral support portion 77 is a horizontally long member and may be formed of resin or a metal material such as aluminum.

[0050] The width of the lateral support portion 77 in this example is set to be capable of abutting against the shoji frame 82 (vertical shoji frame 821) of the fitting 8. The lateral support portion 77 has a frame abutting portion 772 that abuts against the shoji frame 82 (vertical shoji frame 821) of the fitting 8. The columnar portion 56 is provided with a through hole 568 penetrating in the lateral direction, and the lateral support portion 77 is attached to the columnar portion 56 by being passed through the through hole 568.

[0051] When the vertical dimension of the exposed portion exposed to the outdoor side of the shutter curtain 3 is set to 100% with the shutter curtain 3 closed, the lateral support portion 77 is disposed, for example, in a range of 30% or more and 70% or less from the longitudinal end of the exposed portion.

[0052] According to the first modification, the same operations and effects as those of the embodiment are achieved. In addition, according to the first modification, since the slat support portion 5 further includes a lateral support portion 77 that extends in the lateral direction and abuts against the shoji frame 82 of the fitting 8, the impact of flying objects can be dispersed in the lateral direction.

[0053] [Second Modification] The shutter device 10 of the second modification will be described with reference to FIGS. 9 to 12. This modification is different from the embodiment in that it includes an intervening member 72 and a clamping mechanism 74, and the other configurations are the same. Therefore, redundant descriptions are omitted, and the intervening member 72 and the clamping mechanism 74 will be mainly described.

[0054] It is conceivable that the slat 2 vibrates due to the impact of flying objects and slat detachment occurs. Therefore, this modification further includes an intervening member 72 that extends in the vertical direction and intervenes in the gap between the guide rail 4 and the slat 2, and a clamping mechanism 74 that clamps the guide rail 4 and the intervening member 72 therebetween. The intervening member 72 is a vertically long member whose vertical width sandwiched between the indoor side of the slat 2 and the overhanging portion 48 of the guide rail 4 is longer than the horizontal width. FIG. 9 shows the state before the intervening member 72 is attached, and FIG. 10 shows the state in which the intervening member 72 is attached to the guide rail 4.

[0055] As shown in Fig. 9, the intervening member 72 has a strip-shaped first strip portion 722 extending in the lateral direction and a strip-shaped second strip portion 724 provided away from the indoor side from the first strip portion 722 and extending in the lateral direction. The intervening member 72 has a third strip portion 726 extending from the first strip portion 722 in the indoor direction and a fourth strip portion 728 extending from the end of the first strip portion 722 in the indoor direction to connect the first strip portion 722 and the second strip portion 724. The lateral width of the first strip portion 722 is longer than the lateral width of the second strip portion 724.

[0056] The intervening member 72 is formed of a resin such as an elastomer having elasticity. For this reason, as shown in Fig. 10, the outside of the first strip portion 722 than the third strip portion 726 and the second strip portion 724 can be pushed into the gap between the guide rail 4 and the slat 2. By pulling the fourth strip portion 728 inward, the intervening member 72 can be removed from the gap between the guide rail 4 and the slat 2.

[0057] As an example, when the vertical range (vertical width) of the intervening member 72 is 100% of the vertical dimension of the exposed portion exposed to the outdoor side of the shutter curtain 3 in the state where the shutter curtain 3 is closed, it is preferably 30% or more, more preferably 50% or more, still more preferably 70% or more of the exposed portion, and is 100% in this modified example. The vertical width of the intervening member 72 may be the same as the vertical width of the columnar portion 56.

[0058] Fig. 11 shows the state before the clamping mechanism 74 is attached, and Fig. 12 shows the state where the clamping mechanism 74 is attached to the guide rail 4. The clamping mechanism 74 includes a first member 741, a second member 742, and a bolt 743. The bolt 743 is screwed into a tapped hole 745 provided in the bent portion of the second member 742 through a through hole 744 provided in the bent portion of the first member 741. The first member 741 and the second member 742 can be formed by bending a strip-shaped plate of an iron-based metal into a C shape with corners.

[0059] A first clamping portion 746 is provided at the bent end of the first member 741, and a second clamping portion 747 is provided at the bent end of the second member 742. The first clamping portion 746 and the second clamping portion 747 extend parallel to each other, and the interval therebetween is variable.

[0060] As shown in FIG. 11, by loosening the bolt 743, the first clamping portion 746 and the second clamping portion 747 are separated. As shown in FIG. 12, by tightening the bolt 743, the first clamping portion 746 of the first member 741 and the second clamping portion 747 of the second member 742 approach each other. As shown in FIG. 11, in the separated state, the second clamping portion 747 is pushed into the gap between the guide rail 4 and the slat 2. In this state, by tightening the bolt 743, the first clamping portion 746 approaches the second clamping portion 747, and the intervening member 72 is clamped to the guide rail 4. By loosening the bolt 743, the clamping mechanism 74 can be removed.

[0061] The intervening member 72 and the clamping mechanism 74 are attached to the guide rail 4 in the disaster prevention mode and removed from the guide rail 4 in the normal mode.

[0062] The intervening member 72 is provided on each of the two guide rails 4. One or more clamping mechanisms 74 are provided for each intervening member 72. When a plurality of clamping mechanisms 74 are provided for the intervening member 72, the plurality of clamping mechanisms 74 are arranged at a predetermined interval in the vertical direction.

[0063] According to the second modification, the same operations and effects as those of the embodiment are achieved. In addition, according to the second modification, since it includes an intervening member 72 that intervenes in the gap between the guide rail 4 and the slat 2 and extends in the vertical direction, and a clamping mechanism 74 that clamps the guide rail 4 and the intervening member 72, the vibration of the slat 2 due to the impact of flying objects can be suppressed.

[0064] [Other Modifications] In the description of the embodiment, an example in which the frame of the fitting 8 that abuts against the inner abutting portion 54 is the shoji frame 82 of the mesh shoji 81 was shown, but the present invention is not limited thereto. For example, in a configuration that does not include the mesh shoji 81, the frame of the fitting 8 that abuts against the inner abutting portion 54 may be the shoji frame 84 of the glass shoji 85.

[0065] In the description of the embodiment, an example in which one columnar portion 56 is provided was shown, but the present invention is not limited thereto. A plurality of columnar portions may be provided apart from each other in the lateral direction.

[0066] In the description of the embodiment, an example in which both ends of the lateral support portion 77 do not enter the guide rail 4 was shown, but the present invention is not limited thereto. Both ends of the lateral support portion may be configured to enter the guide rail.

[0067] In the description of the embodiment, an example in which one lateral support portion 77 is provided was shown, but the present invention is not limited thereto. A plurality of lateral support portions may be provided apart from each other in the longitudinal direction.

[0068] Any combination of the above components is also effective as an aspect of the technical idea abstracted from the embodiment and the modification example. For example, any explanatory matter of another embodiment may be combined with the embodiment, or any explanatory matter of the embodiment and other modification examples may be combined with the modification example.

[0069] The embodiment and the modification example have been described above. In understanding the technical idea abstracted from the embodiment and the modification example, the technical idea should not be construed as being limited to the contents of the embodiment and the modification example. The above-described embodiment and modification example are merely specific examples, and many design changes such as changes, additions, and deletions of components are possible. In the embodiment, the content in which such design changes are possible is emphasized by adding the notation "embodiment". However, design changes are also allowed for the content without such notation. The hatching attached to the cross section of the drawing does not limit the material of the object to which the hatching is attached.

Description of Reference Numerals

[0070] 2 slats, 3 shutter curtain, 4 guide rail, 5 slat support part, 6 reinforcing member, 8 fitting, 10 shutter device, 21 slat body, 24 reinforcing slat, 52 outer contact part, 54 inner contact part, 56 columnar part, 58 engaging part, 64 movable member, 72 intervening member, 74 clamping mechanism, 77 lateral support part, 522 convex curved surface.

Claims

1. A shutter curtain formed by connecting a plurality of slats extending in the horizontal direction in the vertical direction, A guide rail for supporting the horizontal ends of the shutter curtain, A slat support portion having an outer contact portion that contacts the slat and an inner contact portion that contacts a first vertical shutter frame of a shoji provided on the indoor side of the shutter curtain, Comprising, The slat support portion includes a horizontal support portion extending in the horizontal direction, The horizontal support portion has a frame contact portion that contacts a second vertical shutter frame of the shutter that is located on the opposite side of the shutter body across the shutter body from the first vertical shutter frame in the horizontal direction, a shutter device.

2. The slat support portion has a columnar portion extending in the vertical direction beyond the range of two or more slats, the shutter device according to claim 1.

3. When the vertical range of the first vertical shutter frame is 100%, the inner contact portion contacts a portion of 50% or more of the vertical range of the first vertical shutter frame, the shutter device according to any one of claims 1 to 2.

4. The slat support portion has an engaging portion that engages with the first vertical shutter frame, the shutter device according to any one of claims 1 to 3.

5. The outer contact portion has a convex curved surface facing the slat, the shutter device according to any one of claims 1 to 4.

6. The plurality of slats include reinforced slats having a reinforcing member provided on the indoor side of the slat body, the shutter device according to any one of claims 1 to 5.

7. The reinforcing member includes a movable member that can engage with the guide rail by moving in the horizontal direction, the shutter device according to claim 6.

8. When the vertical dimension of the exposed portion exposed to the outdoor side of the shutter curtain in the closed state of the shutter curtain is 100%, The reinforced slats are arranged at least one in the range of 30% or more and 70% or less from the vertical ends of the exposed portion, the shutter device according to any one of claims 6 to 7.

9. An intervening member extending in the vertical direction intervening in the gap between the guide rail and the slat, A clamping mechanism for clamping with the guide rail and the intervening member interposed therebetween, Further comprising, the shutter device according to any one of claims 1 to 8.

Images