Seat

Abstract

To provide a seat plate with improved fire resistance. [Solution] The seat plate 3 consists of a vertical portion 30 with an interlocking connecting portion 32 at its upper end and a horizontal portion 31 at the lower end of the vertical portion 30. A reinforcing member 9 having a U-shape in cross section is fixed to the vertical portion 30 from a vertical edge 90, an upper edge 91, and a lower edge 92.

Description

[Technical Field]

[0001] The present invention relates to a seat panel, and more particularly to a seat panel with improved fire resistance. [Background technology]

[0002] In lightweight shutters, the opening is closed when the seat plate at the bottom of the shutter curtain hits the floor, but in the event of a fire, the seat plate is directly exposed to the heat of the fire. In particular, if the seat plate is made of aluminum, the heat during the fire can reduce its rigidity, causing it to deform or lift off the floor.

[0003] If a gap is created between the seat plate and the floor when the opening is fully closed, flames will penetrate through the gap, and the fire resistance will no longer be met.

[0004] Patent Document 1 discloses a window shutter device that improves the fire resistance of the lower part of a window opening that is closed by the window shutter. When the opening is closed, the seat plate fits into a lower frame with a recess, and the fire resistance structure is based on the seat plate shape that is unique to window shutters. [Patent Document 1] Patent Publication No. 2013-53421 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0005] SUMMARY OF THE INVENTION An object of the present invention is to provide a seat panel with improved fire resistance. [Means for solving the problem]

[0006] The technical means adopted by the present invention to solve such problems are as follows: a vertical section having an interlocking connection at its upper end; a horizontal portion at the lower end of the vertical portion, A reinforcing member having a U-shape in cross section is fixed to the vertical portion from the vertical side, the upper side, and the lower side. It's a seat board. In one embodiment, the vertical portion and the horizontal portion are made of aluminum, and the reinforcing member is made of a metal material (such as steel or stainless steel) having a melting point higher than that of aluminum.

[0007] In one embodiment, the vertical portion includes a vertical side, an upper horizontal side at an upper end of the vertical side, and a lower horizontal side at a lower end of the vertical side; the vertical edge of the reinforcing member abuts against and is fixed to the vertical edge of the vertical portion, The upper side of the reinforcing member abuts or is close to the upper horizontal side, and the lower side of the reinforcing member abuts or is close to the lower horizontal side. In one embodiment, a hollow raised portion is formed at the lower end of the vertical side of the vertical portion, The upper surface of the rising portion forms the lower horizontal side. [Effects of the Invention]

[0008] In the present invention, by providing a reinforcing member at the vertical portion of the seat panel, the vertical portion that is easily deformed due to the influence of heat is reinforced, thereby suppressing deformation of the seat panel and improving the fire resistance of the seat panel. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a front view of the shutter device according to the embodiment. [Figure 2] FIG. 2 is a vertical cross-sectional view of the shutter device according to the embodiment. [Figure 3] FIG. 2 is a partial cross-sectional view of the shutter device according to the embodiment. [Figure 4] FIG. 2 is a cross-sectional view showing the guide rail assembly (first form) attached to the body. [Figure 5] FIG. 2 is a cross-sectional view of the guide rail assembly (first embodiment). [Figure 6] 1A and 1B are a front view and a side view of a guide rail assembly (first embodiment). [Figure 7] FIG. 10 is a cross-sectional view showing the guide rail assembly (second embodiment) attached to the body. [Figure 8] FIG. 10 is a cross-sectional view of the guide rail assembly (second configuration). [Figure 9] 4A and 4B are a front view and a side view of a guide rail assembly (second mode). [Figure 10] FIG. 10 is a vertical cross-sectional view showing the upper portion of a jamb to which a guide rail assembly (second embodiment) is attached. [Figure 11] FIG. 10 is a cross-sectional view showing a guide rail assembly (a modified example of the second embodiment) attached to a body. [Figure 12] FIG. 10 shows a center post assembly. [Figure 13] FIG. 1 is a cross-sectional view of the center post assembly. [Figure 14] FIG. 14 is an exploded view of the center post assembly of FIG. [Figure 15] FIG. 2 is a vertical cross-sectional view of the seat plate according to the embodiment. [Figure 16] 3A and 3B are a plan view and a front view of the seat panel according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] [A] Overall structure of the shutter FIG. 1 is a front view of the shutter device as seen from outside the room, FIG. 2 is a vertical cross-sectional view of the shutter device with the opening fully closed, and FIG. 3 is a partial horizontal cross-sectional view of the shutter device with the opening fully closed.

[0011] As shown in Figures 1 and 2, the shutter device comprises a shutter case C located above the opening and attached to the outer wall (main body) W in a corrugated form, left and right guide rail assemblies G located on both sides of the width of the opening and attached to the outer wall W in a corrugated form, a center pillar assembly P erected in the center of the width of the opening, a pair of winding units 1 provided within the shutter case C, and a pair of shutter curtains 2 whose upper ends are connected to the winding units 1 and which are wound / unwound by the winding units 1 so that their widthwise ends rise and fall while being guided by the guide rail assemblies G and the center pillar assembly P to open and close the opening, and when the opening is fully closed, the seat plate 3 at the lower end of the shutter curtains 2 rests on the floor FL.

[0012] The shutter device of this embodiment is an electric shutter, and each retractable assembly 1 is equipped with an opening / closing mechanism M. The opening is rotated by the opening / closing mechanism M, which opens and closes the opening with the shutter curtain 2. The shutter device of this embodiment is a so-called twin-mounted shutter device, and the opening, divided into left and right halves by a center post assembly P, is opened and closed by each shutter curtain 2. Note that the present invention is not limited to twin-mounted shutter devices; the configurations of the guide rail assembly G and the base plate 3 also apply to general shutter devices in which both widthwise ends of the shutter curtain are guided by left and right guide rails. Note that while the shutter device of this embodiment is an electric shutter, the configurations of the guide rail assembly G, center post assembly P, and base plate 3 of this embodiment can also be applied to manual shutters. In addition, in the illustrated embodiment, the bracket B and shutter case C supporting the longitudinal ends of the retractable assembly 1 are attached to the outdoor side in a corrugated manner. However, depending on the installation of the shutter device, the bracket B and shutter case C may be attached to the indoor side in a corrugated manner. For example, this may be the case when the bracket B and shutter case C are attached to the indoor facing surface of the hanging wall above the opening. It should be noted that such an embodiment can be explained by replacing the terms "outdoor side" and "indoor side" in this specification with "indoor side" and "outdoor side".

[0013] [B] Guide rail assembly [B-1] First form The guide rail assembly G shown in Figures 3 to 6 comprises a guide rail 4 and a reinforcing member 5, and is attached to the visible surface of an exterior wall (body) W via a frame member 6. The guide rail 4 is made of aluminum, and the reinforcing member 5 is made of a metal material (such as steel or stainless steel) that has a higher melting point than aluminum.

[0014] [B-1-1] Guide rail The guide rail 4 is made from an aluminum extrusion and is a long member that extends perpendicular to the height direction of the opening, with a height corresponding to the total height of the opening, extending vertically from the floor to the shutter case C. The upper end of the guide rail 4 is located at the lower end of upper guides 4A attached to brackets B located at both ends of the shutter case C in the width direction, and extends into the shutter case C (see Figure 2).

[0015] 3 to 6, the guide rail 4 has a guide rail body that is generally U-shaped in cross section and is formed from a first visible edge 40 located on the outdoor side, a second visible edge 41 located on the building frame side, and a bottom edge 42. An extension edge 420 that extends toward the building frame beyond the second visible edge 41 is integrally formed with the bottom edge 42. An inner projected edge 43 that faces the extension edge 420 and extends toward the building frame is formed at the tip side of the second visible edge 41.

[0016] The second visible edge 41 is on the side closer to the exterior wall W, and the first visible edge 40 is on the side farther from the exterior wall W. The first visible edge 40 and the second visible edge 41 are spaced apart and extend substantially parallel to the exterior wall W of the building, and an internal space is formed between the opposing first visible edge 40 and second visible edge 41, and the longitudinal ends of the shutter curtain 2 are received through openings at the tip ends of the first visible edge 40 and the second visible edge 41.

[0017] Sound-absorbing material 44 extending in the height direction is provided opposite the tip portions (openings of the internal space) of the first visible edge 40 and the second visible edge 41. The width of the internal space is narrowed by the sound-absorbing material 44, so that the indoor and outdoor surfaces of the widthwise ends of the shutter curtain 2 received in the internal space come into contact with the sound-absorbing material 44. A locking protrusion 45 extending in the height direction is formed on the inner surface of the first visible edge 40 and the second visible edge 41 adjacent to the rear of the sound-absorbing material 44 (the bottom side of the internal space, i.e., the bottom edge 42 side). A recessed groove 46 extending in the height direction is formed at the tip of the outer surface of the first visible edge 40.

[0018] [B-1-2] Reinforcement member The reinforcing member 5 is formed from a metal plate with a higher melting point than aluminum, such as a steel plate, and has an L-shaped cross section consisting of a visible edge 50 that covers the outer surface of the first visible edge 40 of the guide rail 4, and a visible edge 51 that covers the outer surfaces of the base edge 42 and the extended edge 420. The reinforcing member 5 connects the visible edge 50 to the first visible edge 40 with a fastening member (rivet) 500, thereby forming a guide rail assembly G. The reinforcing member 5 is an elongated member that extends perpendicular to the height direction of the opening, extending vertically from the floor surface to the shutter case C. The reinforcing member 5 is provided across substantially the entire height of the guide rail 4 (excluding the upper end portion located inside the shutter case C). The tip of the visible edge 50 of the reinforcing member 5 fits into a groove 46 formed at the tip of the outer surface of the first visible edge 40 of the guide rail 4, so that in the guide rail assembly G, burrs at the tip of the visible edge 50 are not exposed to the outside.

[0019] [B-1-3] Guide rail assembly mounting structure The guide rail assembly G is attached to the exterior wall W by being fixed to a frame member 6 provided on the exterior wall W. The frame member 6 has a U-shape in plan view or cross section, consisting of a visible edge 60 fixed to the exterior wall W, and an outer visible edge 61 and an inner visible edge 62 extending outdoors from both widthwise ends of the visible edge 60, and the visible edge 60 abuts against the exterior wall W and is fixed with screws S3. The frame member 6 is a long element extending in the height direction of the opening, but may also be a plurality of short elements provided in the height direction.

[0020] The extending edge 420 of the guide rail 4 abuts against the outer surface of the outer projected edge 61 of the frame member 6, and the projected edge 51 of the reinforcing member 5 abuts against the outer surface of the extending edge 420 of the guide rail 4, and the projected edge 51 of the reinforcing member 5, the extending edge 420 of the guide rail 4, and the outer projected edge 61 of the frame member 6 are fastened together and connected with screws S1. The tip of the extending edge 420 and the tip of the projected edge 51 of the reinforcing member 5 abut against or are close to the outer wall W.

[0021] The inner projected edge 43 of the guide rail 4 abuts against the outer surface of the inner projected edge 62 of the frame member 6, and the inner projected edge 43 and the inner projected edge 62 are connected by a screw S2. The tip of the inner projected edge 43 abuts against or is close to the body W.

[0022] In the guide rail assembly G, the outer surface of the first visible edge 40 of the guide rail 4, the bottom edge 42, and the outer surface of the extending edge 420 are covered by the visible edge 50 and the visible edge 51 of the reinforcing member 5, and are not exposed to the outside. When the opening is fully closed, the widthwise end of the shutter curtain 2 is located in the internal space of the guide rail 4, and the inner visible edge 43 of the guide rail 4 is located inside the shutter curtain 2 and is not exposed to the outdoor space.

[0023] [Note] a guide rail (4) having a first visible edge (40) on the side farther from the skeleton (exterior wall W), a second visible edge (41) on the skeleton side, and a bottom edge (42); a reinforcing member (5) having a visible edge (50) and a visible edge (51) that cover the outer surfaces of at least the first visible edge (40) and the bottom edge (42), and a guide rail assembly (G) is formed from the reinforcing member (5); The guide rail assembly (G) is attached to the frame (exterior wall W) via a frame member (6) in such a manner that the outer surface of the guide rail 4 is not exposed. In one embodiment, the bottom edge (42) of the guide rail (4) has an extension edge (420) that extends beyond the second visible edge (41) toward the body side, An inner projected edge (43) is formed at the tip end of the second projected edge (40) so as to face the extension edge (420) and extend toward the body side. The reinforcing member (5) has an L-shaped cross section, which is made up of a visible edge (50) located on the outer surface of the first visible edge (40) and a visible edge (51) located on the outer surfaces of the base edge (42) and the extended edge (420). The frame member (6) comprises a front edge (60) fixed to the frame (exterior wall W), an outer front edge (61), and an inner front edge (62). The projected edge (51) of the reinforcing member (5) is fixed to the outer projected edge (61) of the frame member 6 together with the extended edge (420) with its tip abutting or in close proximity to the skeleton (exterior wall W), The inner projected edge (43) of the guide rail (4) is fixed to the inner projected edge (62) of the frame member (6) with its tip abutting or in close proximity to the frame (exterior wall W). In one embodiment, the first visible edge (40) of the guide rail (4) is located on the outdoor side, and the outer surface of the first visible edge (40) of the guide rail (4), the bottom edge (42), and the outer surface of the extension edge (420) are covered with the reinforcing member (5) in a manner that they are not exposed to the outdoor space, When the opening is fully closed, the second visible edge (41) and the inner visible edge (43) of the guide rail (4) are positioned in the indoor space. In one embodiment, the first visible edge (40) of the guide rail (4) is located on the indoor side, and the outer surface of the first visible edge (40) of the guide rail (4), the bottom edge (42), and the outer surface of the extension edge (420) are covered with the reinforcing member (5) in a manner that they are not exposed to the indoor space, When the opening is fully closed, the second visible edge (41) and the inner visible edge (43) of the guide rail (4) are positioned in the outdoor space.

[0024] [B-2] Second form 7 to 9, the guide rail assembly G comprises a guide rail 4 and a reinforcing member 5, and is attached to a furring strip (body) 12 via a frame member 6' and a side frame 10. The guide rail 4 is made of aluminum, and the reinforcing member 5 is made of a metal material (such as steel or stainless steel) that has a higher melting point than aluminum.

[0025] [B-2-1] Guide rail The guide rail 4 is made of aluminum extrusion and is a long member that extends perpendicular to the height direction of the opening, with a height corresponding to the total height of the opening, extending vertically from the floor to reach the shutter case C. The upper end of the guide rail 4 is located at the lower end of upper guides 4A attached to brackets B located at both ends of the shutter case C in the width direction, and extends into the shutter case C.

[0026] 7 and 8, the guide rail 4 is formed in a generally U-shape in plan view or cross section, with a first visible edge 40 located on the outdoor side, a second visible edge 41 located on the main body side, and a bottom edge 42. The first visible edge 40 and the second visible edge 41 are spaced apart and extend generally parallel to each other in the width direction of the opening, and an internal space is formed between the opposing first visible edge 40 and second visible edge 41, and the longitudinal ends of the shutter curtain 2 are received through openings at the tip ends of the first visible edge 40 and second visible edge 41.

[0027] Sound-absorbing material 44 extending in the height direction is provided opposite the tip portions (openings of the internal space) of the first visible edge 40 and the second visible edge 41. The width of the internal space is narrowed by the sound-absorbing material 44, so that the indoor and outdoor surfaces of the widthwise ends of the shutter curtain 2 received in the internal space come into contact with the sound-absorbing material 44. Locking protrusions 45 extending in the height direction are formed on the inner surfaces of the first visible edge 40 and the second visible edge 41 adjacent to the rear of the sound-absorbing material 44 (the bottom side of the internal space, i.e., the bottom edge 42 side). A recessed groove 46 extending in the height direction is formed at the tip of the outer surface of the first visible edge 40, and a recessed groove 47 extending in the height direction is formed at the tip of the outer surface of the second visible edge 41.

[0028] [B-2-2] Reinforcement member The reinforcing member 5 is formed from a metal plate having a higher melting point than aluminum, for example, a steel plate, and has a U-shape in plan view or cross section, which is made up of a first visible edge 50 provided to cover the outer surface of the first visible edge 40 of the guide rail 4, a visible edge 51 provided to cover the outer surface of the bottom edge 42, and a second visible edge 52 provided to cover the outer surface of the second visible edge 41. The guide rail assembly G has a U-shape in cross section, which is made up of the first visible edges 40, 50, the second visible edges 41, 52, the bottom edge 42, and the visible edge 51, and the outer surface of the guide rail 4 is covered by the reinforcing member 5. The tip of the first visible edge 50 of the reinforcing member 5 fits into a groove 46 formed at the tip on the outer surface of the first visible edge 40 of the guide rail 4, and the tip of the second visible edge 52 fits into a groove 47 formed at the tip on the outer surface of the second visible edge 41 of the guide rail 4, so that in the guide rail assembly G, burrs at the tips of the first visible edge 50 and the second visible edge 52 are not exposed to the outside.

[0029] [B-2-3] Guide rail assembly mounting structure In the second form, the opening consists of a three-sided frame attached to the main body (furring strips 12, 12'), and the three-sided frame is formed from left and right side frames 10 attached to the left and right furring strips 12 extending in the height direction, and an upper frame 11 attached to the upper furring strip 12' (see Figures 7 and 10). The guide rail assembly G is attached to the side frames 10 and furring strips 12 of the three-sided frame via frame members 6'.

[0030] The frame member 6' is a long member extending in the height direction, and as shown in Fig. 7, has a generally U-shaped configuration in plan view or cross section, consisting of a visible edge 60', an outer visible edge 61' extending from both widthwise ends of the visible edge 60' toward the frame body, and an inner visible edge 62', and the visible edge 60' is fastened to the second visible edges 41, 52 with fastening members (rivets 520). The outer surface of the visible edge 51 of the reinforcing member 5 and the outer surface of the outer visible edge 61' of the frame member 6' form the same vertical plane. In the illustrated embodiment, the outer visible edge 61' of the frame member 6' is longer than the inner visible edge 62'.

[0031] The side frame 10 is a long member extending in the height direction, and as shown in Figure 7, consists of a projected edge 100 that forms the side of the opening, an outdoor-side visible edge 101 at the outdoor-side end of the projected edge 100, an outdoor-side visible edge 102 that extends from the tip of the outdoor-side visible edge 101 to the outdoor side, an indoor-side visible edge 103 at the indoor-side end of the projected edge 100, an indoor-side visible edge 104 that extends from the tip of the indoor-side visible edge 103 to the outdoor side, and a second indoor-side visible edge 105 that extends from the tip of the indoor-side visible edge 104 in a direction away from the projected edge 100.

[0032] The furring strip 12 is a long member extending in the vertical direction, and as shown in Figure 7, has a roughly C-shape in plan view or cross section, consisting of a projected edge 120, an outdoor-side visible edge 121, an indoor-side visible edge 122, a bent edge 123 at the tip of the outdoor-side visible edge 121, and a bent edge 124 at the tip of the indoor-side visible edge 122.

[0033] The outer projected edge 61' of the frame member 6' is fixed to the furring strip 12 via the first connecting member 13. More specifically, the first connecting member 13 has an L-shape in plan view or cross section, consisting of a projected edge 130 and a visible edge 131, and the projected edge 130 is fixed to the outer projected edge 61' of the frame member 6' with a screw S4, and the visible edge 131 is fixed to the outdoor-side visible edge 121 of the furring strip 12 with a screw S6. A tip end portion of the projected edge 130 of the first connecting member 13 abuts against the projected edge 51 of the guide rail assembly G (reinforcement member 5).

[0034] The inner projected edge 62' of the frame member 6' abuts against the outdoor projected edge 102 of the side frame 10 and is fixed with a screw S5. The tip side portion of the second projected edge 52 of the reinforcing member 5 of the guide rail assembly G faces the outdoor projected edge 101 of the side frame 10 at a distance, and the screw S5 is concealed by filling it with caulking material 106.

[0035] The side frame 10 is fixed to the furring strip 12 via the second connecting member 14. More specifically, the second connecting member 14 has an L-shape in plan view or cross section, consisting of a projected edge 140 and a visible edge 141, and the visible edge 141 is fixed to the second indoor-side visible edge 105 of the side frame 10 with a screw S7, and the visible edge 140 is fixed to the visible edge 120 of the furring strip 12 with a screw S8.

[0036] Figure 11 shows a modified example of the second form of the mounting structure for the guide rail assembly G. The difference from the second form shown in Figure 7 is that instead of furring strips 12 as the frame, the frame is formed from ALC panels 12A and uprights 12B. The side frames 10 are attached to the ALC panels 12A, and the outer projected edges 61' of the frame members 6' are attached to the uprights 12B.

[0037] [Note] a guide rail (4) having a first visible edge (40) on the side farther from the skeleton (exterior wall W), a second visible edge (41) on the skeleton side, and a bottom edge (42); a reinforcing member (5) having a visible edge (50) and a visible edge (51) that cover the outer surfaces of at least the first visible edge (40) and the bottom edge (42), and a guide rail assembly (G) is formed from the reinforcing member (5); The guide rail assembly (G) is attached to the main body (side frame 10, furring strip 12; side frame 10, ALC panel 12A + upright 12B) via a frame member (6') in such a way that the outer surface of the guide rail (4) is not exposed. In one embodiment, the guide rail 4 has a U-shaped cross section including a first visible edge (40), a second visible edge (41), and a bottom edge (42), The reinforcing member (5) has a U-shaped cross section, which is made up of a first visible edge (50) covering the outer surface of the first visible edge (40), a second visible edge (52) covering the outer surface of the second visible edge (41), and a visible edge (51) covering the outer surface of the base edge (42). The frame member (6') comprises a front edge (60'), an outer front edge (61'), and an inner front edge (62'), The second facing edge (41) of the guide rail (4) is fixed to the facing edge (60') of the frame member (6') together with the second facing edge (52) of the reinforcing member (5). The frame member (frame member 6') is attached to the main body (side frame 10, furring strip 12; side frame 10, ALC panel 12A + post 12B) via the outer projected edge (61') and the inner projected edge (62'). In one embodiment, the first visible edge (40) of the guide rail (4) is located on the outdoor side, and the outer surface of the first visible edge (40) and the outer surface of the bottom edge (42) of the guide rail (4) are covered with the reinforcing member (5) in a manner that they are not exposed to the outdoor space, When the opening is fully closed, the second visible side (41) of the guide rail (4) is positioned in the indoor space. In one embodiment, the first visible edge (40) of the guide rail (4) is located on the indoor side, and the outer surface of the first visible edge (40) of the guide rail (4) and the outer surface of the bottom edge (42) are covered with the reinforcing member (5) in a manner that they are not exposed to the indoor space, When the opening is fully closed, the second visible side (41) of the guide rail (4) is positioned in the outdoor space.

[0038] [C] Middle pillar assembly As shown in Figures 12 to 14, the center post assembly P consists of a center post 7, a first reinforcing member 8, and a second reinforcing member 8'. The center post assembly P according to this embodiment is movable or removable. The center post 7, the first reinforcing member 8, and the second reinforcing member 8' are made of aluminum.

[0039] The center post 7 has an H-shape in plan view or cross section, consisting of a first visible edge 70, a second visible edge 71, and a visible edge 72 connecting the centers of the first and second visible edges 70 and 71. A guide groove is formed on one widthwise end of the first and second visible edges 70 and 71, and a guide groove is formed on the other widthwise end of the first and second visible edges 70 and 71. A first locking groove 700 is formed at the end of the outer surface of the first visible edge 70 of the center post 7. A second locking groove 710 is formed at the end of the outer surface of the second visible edge 71 of the center post 7. A groove 701 for fitting sound-deadening material is formed at the end of the inner surface of the first visible edge 70 of the center post 7, and sound-deadening material (not shown) is fitted therein. A groove 711 for fitting sound-deadening material is formed at the end of the inner surface of the second visible edge 71 of the center post 7. A locking protrusion 702 is formed adjacent to the groove 701 at the end of the inner surface of the first visible side 70 of the center post 7. A locking protrusion 712 is formed adjacent to the groove 711 at the end of the inner surface of the second visible side 71 of the center post 7.

[0040] The first reinforcing member 8 is a hollow element formed in a semicircular shape in plan view or cross section by an arcuate side 81 and an oblique side 80 fixed to the first oblique side 70 of the center post 7. The second reinforcing member 8' is a hollow element formed in a semicircular shape in plan view or cross section by an arcuate side 81' and an oblique side 80' fixed to the second oblique side 71 of the center post 7. The first reinforcing member 8 and the second reinforcing member 8' have the same cross-sectional shape except for the difference in height.

[0041] The upper end portion of the center post 7 protrudes higher than the upper ends of the first reinforcing member 8 and the second reinforcing member 8', and this portion is located inside the shutter case C. The lower end of the first reinforcing member 8 is located slightly higher than the lower end of the center post 7. The lower end of the second reinforcing member 8' is located higher than the lower end of the first reinforcing member 8, exposing the lower portion of the second visible edge 71 of the center post 7, and a lifting rod 73 is provided in this portion.

[0042] A first locking protrusion 800 is formed on the outer surface of the first visible edge 80 of the first reinforcing member 8 at the end portion thereof, which can be slidably locked into the first locking groove 700 in the length direction, and the central portion of the first visible edge 80 in the width direction is a thick portion 801. With the first locking protrusion 800 of the first reinforcing member 8 engaged with the first locking groove 700 of the center post 7, the first visible edge 80 of the first reinforcing member 8 and the first visible edge 70 of the center post 7 are fixed with a fastening member (screw S9) with the thick portion 801 of the first visible edge 80 abutting against the first visible edge 70.

[0043] A second locking protrusion 800' is formed on the end of the outer surface of the second visible edge 80' of the second reinforcing member 8', which is capable of slidingly locking into the second locking groove 710 in the longitudinal direction, and the central portion of the second visible edge 80' in the width direction is a thick portion 801'. With the second locking protrusion 800' of the second reinforcing member 8' engaged with the second locking groove 710 of the center post 7, the second visible edge 80' of the second reinforcing member 8' and the second visible edge 71 of the center post 7 are fixed with a fastening member (screw S9) with the thick portion 801' of the second visible edge 80' abutting against the second visible edge 71.

[0044] The center post assembly P is formed by sliding the first reinforcing member 8 (first locking groove 700 and first locking protrusion 800) onto the first visible edge 70 of the center post 7 from the length direction of the center post 7, and fixing it with an upper screw S9 using an upper part of the internal space of the center post 7 and an upper part of the hollow part of the first reinforcing member 8, and fixing it with a lower screw S9 using a lower part of the internal space of the center post 7 and a lower part of the hollow part of the first reinforcing member 8. The second reinforcing member 8' is slidingly engaged (second locking groove 710 and second locking protrusion 800') onto the second visible edge 71 of the center post 7 from the length direction of the center post 7, and fixing it with an upper screw S9 using an upper part of the internal space of the center post 7 and an upper part of the hollow part of the second reinforcing member 8', and fixing it with a lower screw S9 using a lower part of the internal space of the center post 7 and a lower part of the hollow part of the second reinforcing member 8'.

[0045] The center post assembly P according to this embodiment has a larger cross-sectional dimension due to the provision of the first reinforcing member 8 and the second reinforcing member 8' on the center post 7, making it stronger than the center post 7 alone and providing high wind pressure resistance. Furthermore, the provision of the hollow first reinforcing member 8 and the hollow second reinforcing member 8' on the center post 7 creates an air layer in the center post assembly P, which delays the transfer of heat in the event of a fire and thereby delays the time until the center post 7, which is made of aluminum extrusion, melts. The thicknesses of the first arc-shaped side 81 of the first reinforcing member 8 and the second arc-shaped side 81' of the second reinforcing member 8' are thicker than the thicknesses of the first visible side 70 and the second visible side 71 of the center post 7.

[0046] [Note] a center post (7) including a first visible edge (70), a second visible edge (71), and a visible edge (72) connecting the central portions of the first visible edge (70) and the second visible edge (71), and having a pair of guide grooves formed therein; a hollow first reinforcing member (8) formed in a semicircular cross section from a first visible edge (80) fixed to a first visible edge (70) of the center post (7) and a first arcuate edge (81); a second reinforcing member (8') having a hollow shape and formed in a semicircular cross section from a second visible edge (80') fixed to the second visible edge (71) of the center pillar (7) and a second arcuate edge (81'); A center pillar assembly (P) consisting of: In one embodiment, a first locking groove (700) is formed at the end of the first visible edge (70) of the center post (7), A first locking protrusion (800) is formed at the end of the first facing edge (80) of the first reinforcing member (8), and is capable of slidingly locking in the first locking groove (700) from the longitudinal direction. The first reinforcing member (8) is fixed by the fastening member (S9) in a state where the first locking projection (800) is engaged with the first locking groove (700) of the center post (7), and the first visible edge (80) of the first reinforcing member (8) and the first visible edge (70) of the center post (7) are in partial contact with each other. A second locking groove (710) is formed at the end of the second facing edge (71) of the center post (7). A second locking protrusion (800') is formed at the end of the second facing side (80') of the second reinforcing member (8'), and is capable of slidingly locking in the second locking groove (710) from the length direction. The second reinforcing member (8') is fixed by the fastening member (S9) in a state where the second locking projection (800') is engaged with the second locking groove (710) of the center post (7), and the second visible edge (80') of the second reinforcing member (8') and the second visible edge (71) of the center post (7) are in partial contact with each other.

[0047] [D] Shutter Curtain As shown in Figures 1 and 2, the shutter curtain 2 consists of a shutter curtain body formed by interlocking multiple slats 20 together, and a seat plate 3 connected to the lower end slat 20.

[0048] [D-1] Slat The shutter curtain 2 has a predetermined height and is formed by connecting long, plate-like slats 20 that extend in the width direction of the opening so that they can rotate in the height direction. The upper end of the shutter curtain 2 is connected to the winding assembly 1 via a hanging point 21, and a seat plate 3 is provided at the lower end of the shutter curtain 2. The slats 20 have a width dimension such that both longitudinal ends extend into the internal space of the guide rail 4 and center post 7, and when the shutter curtain 2 is raised or lowered or when the opening is fully closed, one of the widthwise end portions of the slat 20 is received in the guide groove of the guide rail 4 and the other in the guide groove of the center post 7.

[0049] The slats 20 are highly wind-resistant slats, and have locking recesses 200 formed on the surfaces at both widthwise ends, which can be locked onto the locking protrusions 45 on the first and second visible edges 40 and 41 of the guide rail 4, and onto the locking protrusions 702 and 712 on the center post 7. When the shutter curtain 2 expands due to wind pressure or the like with the opening fully closed, the locking recesses 200 on the exterior side of the slat end lock onto the locking protrusions 45 and 702 and 712, preventing the slat end from slipping out of the guide groove.

[0050] [D-2] Seat board The seat panel 3 has an inverted T-shape in cross section, consisting of a vertical portion 30 and a horizontal portion 31 at the lower end of the vertical portion 30. An interlocking connecting portion 32 is provided at the upper end of the vertical portion 30. The vertical portion 30 is composed of a plate-like vertical side 30' extending vertically, with an upper horizontal side 300 formed at the upper end of the vertical side 30'. At the tip of the upper horizontal side 300, a rising side 301 with a locking piece 301' at its upper end is formed, and a locking piece 302 is formed rising from the side closer to the vertical side 30'. The interlocking connecting portion 32 has an engaging portion 320 that engages with the lower end of the slat 20 directly above, and is connected to the rising piece 301 and locking piece 302 of the vertical portion 30.

[0051] A hollow raised portion is formed at the lower end of the vertical side 30' of the vertical portion 30 of the seat panel 3, and the upper surface of the raised portion forms the lower horizontal side 303 of the vertical portion 30. The hollow raised portion is formed by the lower horizontal side 303, a hanging piece 304 at the tip of the lower horizontal side 303, the lower end portion of the vertical side, and a widthwise central portion 310 of the horizontal portion 31. By forming the hollow raised portion at the lower end portion of the vertical portion 30, the strength of the lower end of the vertical portion 30 is increased.

[0052] The horizontal section 31 of the seat panel 3 consists of a widthwise central section 310 and wide sections 311 that extend from the central section 310 toward the outdoor side and toward the building frame. The central section 310 of the horizontal section 31 has the same length as the vertical section 30 (including the hollow rising section), and its longitudinal ends extend into the grooves of the guide rail 4 and the center post 7. The wide section 311 is shorter than the central section 310 and does not reach the guide rail 4 or the center post 7. Covers 313 are attached to both longitudinal end sections of the wide section 311. Abutment sections 312 that extend longitudinally are attached to the underside of the tip of the wide section 311, and are designed to rest against the floor when the opening is fully closed. The seat panel 3 is made of aluminum.

[0053] [D-2] Reinforcement member A reinforcing member 9 having a U-shaped cross section is fixed to the vertical portion 30 of the seat panel 3 by a vertical edge 90, a horizontal upper edge 91, and a horizontal lower edge 92. The reinforcing member 9 is made of a metal material (such as steel or stainless steel) with a higher melting point than aluminum. The reinforcing member 9 is a long member that extends in the width direction of the opening, similar to the seat panel 3, and is provided over the entire length of the vertical portion 30 of the seat panel 3. The reinforcing member 9 is provided over approximately the entire height of the inner surface of the vertical edge 30' of the vertical portion 30 of the seat panel 3. The vertical edge 90 of the reinforcing member 9 abuts against the indoor side portion of the vertical edge 30' of the vertical portion 30 of the seat panel 3 and is fixed with a fastening member (rivet 33). The upper edge 91 of the reinforcing member 9 abuts against or is close to the underside of the upper horizontal edge 300, and the lower edge 92 is close to the upper surface of the lower horizontal edge 303. By providing a reinforcing member 9 on the vertical portion 30 of the seat panel 3, the vertical edge 30' of the vertical portion 30, which is easily deformed due to the influence of heat, is reinforced, thereby suppressing deformation of the seat panel 3 and improving the fire resistance of the seat panel 3.

[0054] [Note] a vertical section (30) having an interlocking connection section (32) at its upper end; A seat plate (3) consisting of a vertical portion (30) and a horizontal portion (31) at the lower end thereof, A reinforcing member (9) having a U-shaped cross section is fixed to the vertical portion (30) from a vertical side (90), an upper side (91), and a lower side (92). Seat board. In one embodiment, the vertical portion (30) comprises a vertical side (30'), an upper horizontal side (300) at the upper end of the vertical side, and a lower horizontal side (303) at the lower end of the vertical side (30'); The vertical edge (90) of the reinforcing member (9) is fixed in contact with the vertical edge (30') of the vertical portion (30), The upper side (91) of the reinforcing member (9) is in contact with or close to the upper horizontal side (300), and the lower side (92) of the reinforcing member (9) is in contact with or close to the lower horizontal side (303). In one embodiment, the vertical portion (30) has a hollow raised portion formed at the lower end of the vertical side (30'), The upper surface of the rising portion forms the lower horizontal side (303). [Explanation of symbols]

[0055] 1-volume assembly 2. Shutter Curtains 3 Seat board 4 guide rails 40 First junction area 41 Second Mitsuke Area 42 Bottom 5 Reinforcement member (guide rail) 50. Front edge (first front edge) 51 Prospect 52 Second Mitsuke Area 6 Frame members 6´ Frame member 7 Middle pillar 70 First junction area 71 Second Mitsuke Area 72 Prospect 8 First reinforcing member (center column) 80 Mitsukebe 81 Arc edge 8´ Second reinforcing member (center column) 80´ Mitsukebe 81´ Arc edge 9 Reinforcement member (seat plate) 10 Side frame (frame) 12. Furring strip (body) 12A ALC panel (body) 12B mullion (framework) G Guide rail assembly P Middle pillar assembly W External wall (framework)

Claims

1. a vertical section having an interlocking connection at its upper end; a horizontal portion at the lower end of the vertical portion, A reinforcing member having a U-shape in cross section is fixed to the vertical portion from the vertical side, the upper side, and the lower side. Seat board.

2. the vertical portion includes a vertical side, an upper horizontal side at an upper end of the vertical side, and a lower horizontal side at a lower end of the vertical side, the vertical edge of the reinforcing member abuts against and is fixed to the vertical edge of the vertical portion, The upper side of the reinforcing member abuts against or is close to the upper horizontal side, and the lower side of the reinforcing member abuts against or is close to the lower horizontal side. The seat panel according to claim 1 .

3. In the vertical portion, a hollow rising portion is formed at a lower end of the vertical side, The upper surface of the rising portion forms the lower horizontal edge. The seat panel according to claim 2.

4. the vertical portion and the horizontal portion are made of aluminum, and the reinforcing member is made of a metal material having a melting point higher than that of aluminum. The seat panel according to any one of claims 1 to 3.

Images