Window device

Abstract

To provide a window device with improved fireproof performance.SOLUTION: In a window device comprising a window frame which is composed of an upper frame 2, a lower frame 3 and left and right vertical frames and forms a window opening, and a plurality of shojis 1 which are vertically connected to the window frame and open and close the window opening, when the window opening is fully closed, an upper frame 6 of the highest shoji 1 is closely attached to the upper frame 2, a lower frame 7 of the lowest shoji 1 is closely attached to the lower frame 3, the lower frame 7 of the shoji 1 located on the upper side and the upper frame 6 of the shoji 1 located on the lower side are in close contact with each other to form a meeting part A, and at least one of the lower stile 7 and the upper stile 6 forming the meeting part A is provided with a reinforcing member 64 extending in a width direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a window device, and more particularly to a window device having fire retardant properties. [Background technology]

[0002] A window device opens and closes a window opening with a paper door. Window devices equipped with multiple paper doors are known, and for example, Patent Document 1 describes a sliding window equipped with multiple paper doors.

[0003] In window devices, there are cases where fire resistance is required when the window opening is fully closed, and it is necessary that no gaps that are disadvantageous in terms of fire resistance are created between the outside space and the inside space separated by the screen, even when heated for a specified period of time. [Patent Document 1] Utility model registration No. 2569062 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0004] The present invention aims to provide a window device with improved fire protection performance. [Means for solving the problem]

[0005] The technical means adopted in the present invention to achieve this object are as follows: A window frame that includes an upper frame, a lower frame, and left and right vertical frames and forms a window opening; A number of shoji screens are connected vertically to the window frame to open and close the window opening; In a window device comprising: When the window opening is fully closed, the upper frame of the top shoji screen is in close contact with the upper frame, and the lower frame of the bottom shoji screen is in close contact with the lower frame. The bottom frame of the upper shoji screen and the top frame of the lower shoji screen are in close contact with each other to form a joint. At least one of the lower frame and the upper frame forming the joint portion is provided with an intermediate reinforcing material across the width direction. A window device.

[0006] In one embodiment, an upper end reinforcement material is provided across the width of the upper frame of the uppermost shoji screen, and a lower end reinforcement material is provided across the width of the lowermost shoji screen. In one embodiment, the left and right vertical frames of the shoji screen are not provided with reinforcing members.

[0007] In one embodiment, the window arrangement is a sliding window and the intermediate reinforcement is provided on the top frame of the lower screen. Effect of the Invention

[0008] In the present invention, by providing an intermediate reinforcement material across the width of at least one of the lower and upper frames that form the joint of multiple screens in a window device, it is possible to prevent as much as possible the formation of gaps that are disadvantageous in terms of fire prevention at the adjacent parts (joint parts) of the upper and lower screens due to deformation of the upper and / or lower frames due to heat during a fire when the window opening is in a fully closed state. [Brief description of the drawings]

[0009] [Figure 1] FIG. 2 is a front view of the window device in a fully closed state as viewed from the inside of the room. [Diagram 2] FIG. 2 is a side view of the window device in an open state. [Diagram 3] FIG. 2 is a vertical cross-sectional view of a window device in a fully closed state. [Figure 4] FIG. 2 is a cross-sectional view of a window device in a fully closed state. [Diagram 5] This is a front view of the shoji screens other than the lowest one (the topmost shoji screen and the middle shoji screen) as seen from inside the room. [Figure 6] This is a front view of the lowest shoji screen as seen from inside the room. [Figure 7] These are longitudinal cross-sectional views showing a structure that improves the fire resistance of the bottom frame of a shoji screen, with three different configurations shown as (A), (B), and (C). [Figure 8]These are cross-sectional views showing a structure that improves the fire resistance of the bottom frame of a shoji screen, and (A), (B), and (C) correspond to (A), (B), and (C) in Figure 8. [Figure 9] 9 is a view similar to FIG. 5, having the structure shown in FIG. 7 and FIG. 8. [Figure 10] 9 is a view similar to FIG. 6, having the structure shown in FIG. 7 and FIG. 8. [Figure 11] The left figure is a vertical cross-sectional view of a window device equipped with four shoji screens, and the right figure is a view similar to the left figure and equipped with the structure shown in Figs. 7 to 9. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] [A] Basic structure of window device [A-1] Overall configuration of the window device As shown in Fig. 1, the window device is composed of a window frame and a number of panels or shoji screens 1 (two screens are shown in Fig. 1) that open and close the window opening formed by the window frame. The number of shoji screens 1 that compose the window device is not limited, and for example, three or more shoji screens may be provided, and the embodiment shown in Fig. 11 has four shoji screens 1. The window device according to this embodiment has fireproofing performance, and the fireproofing configuration will be described later.

[0011] The window frame is composed of an upper frame 2, a lower frame 3, and left and right vertical frames 4 and 5, and a vertical rectangular window opening is formed surrounded by the upper frame 2, the lower frame 3, and the left and right vertical frames 4 and 5. The shoji screen 1 is composed of a horizontal rectangular frame made up of an upper frame 6, a lower frame 7, and left and right vertical frames 8 and 9, and a glass panel 10 fitted into the horizontal rectangular area surrounded by the frame, and the window opening is opened and closed by multiple shoji screens 1 connected vertically.

[0012] In this embodiment, the window frame and the frame of the shoji screen 1 are formed from aluminum shaped material. The glass plate 10 has an interior side surface 100, an exterior side surface 101, an upper end surface 102, a lower end surface 103, and side end surfaces 104, 105 at the widthwise ends. The glass plates 10 shown in Figures 4, 5, 7(C), 8(C), and the left diagram of Figure 11 are multi-layer composite glass, whereas the glass plates 10 shown in Figures 7(A), (B), 8(A), (B), and the right diagram of Figure 11 are single-layer and have a smaller thickness than composite glass.

[0013] 2, 3, 7, and 11, the right side is the indoor side and the left side is the outdoor side. In Fig. 4 and Fig. 8, the lower side is the indoor side and the upper side is the outdoor side. It should be noted that in this specification, the expressions "indoor side" and "outdoor side" are used to specify the relative position and direction of a component or part of a component, in addition to the case where a component is actually located on the indoor side or outdoor side.

[0014] [A-2] Opening and closing mechanism of the window device according to this embodiment The window device according to this embodiment is a sliding window. Each shoji screen 1 can rotate back and forth around its upper end as a pivot point, and the pivot point can also be moved up and down via left and right opening and closing operation bars 11 that are provided to be movable up and down along the left and right vertical frames 4 and 5 of the window frame.

[0015] Each shoji screen 1 is connected to the window frame via a connecting mechanism provided between the left and right vertical frames 4, 5 of the window frame and the left and right vertical stiles 8, 9 of each shoji screen 2. The connecting mechanism has an opening / closing operation bar 11, a first arm 12, a second arm 13, a base 14, a bracket 15, and an operating plate 16. The base 14 is fixed to the vertical frames 4, 5. A long hole 140 extending vertically is formed in the base 14, and the upper end of the long hole 140 is inclined toward the room.

[0016] The first arm 12 is connected to the upper portion of the vertical frames 8 and 9 of the shoji screen 1, and the upper end of the first arm 12 is connected to the base 14 via an engagement pin 120 so as to be rotatable and slidable up and down. The engagement pin 120 protruding from the upper portion of the first arm 12 is slidably fitted into an elongated hole 140 of the base 14 and is guided by the elongated hole 140. When the engagement pin 120 is located at the upper end of the elongated hole 140 of the base 14, the shoji screen 1 takes an upright position and closes the window opening, and when the engagement pin 120 is located at the lower end of the elongated hole 140, the shoji screen 1 takes an inclined position and opens the window opening (see FIG. 2). The upper end of the second arm 13 is rotatably connected to a portion below the center of the first arm 12. The lower end of the second arm 13 is rotatably connected to a bracket 15 fixed to the vertical frames 4 and 5.

[0017] The operating plate 16 is provided at a portion of the opening / closing operation bar 11 corresponding to the upper end of each screen 1 so as to protrude from the opening / closing operation bar 11 to the outside of the room, and as the opening / closing operation bar 11 moves up and down, the operating plate 16 moves up and down, moving the engagement pin 120 up and down. A long hole 160 is formed in the operating plate 16, and the operating plate 16 is interposed between the base 14 and the upper end of the first arm 12, and the engagement pin 120 is slidably fitted into the long hole 160, and the engagement pin 120 is guided by the long hole 160. When the opening / closing operation bar 11 moves downward to move the operating plate 16 a predetermined distance, the pin 120 moves downward through the long hole 140 of the base 14, the first arm 12 rotates toward the outside of the room around the engagement pin 120, and the second arm 13 rotates toward the outside of the room around the lower end, and the screen 1 tilts to open the opening.

[0018] An operating mechanism for moving the opening / closing operation bar 11 up and down is connected to the lower end of the opening / closing operation bar 11. The operating mechanism is a bending / stretching mechanism consisting of a link 17 whose upper end is rotatably connected to the left and right opening / closing operation bars 11, and a rotating arm 18 whose upper end is rotatably connected to the lower end of the link 17 and whose lower end serves as a pivot point. An operating mechanism is connected to the lower end of each of the left and right opening / closing operation bars 11, and the left and right operating mechanisms are linked by a rotating shaft 19 that connects the pivot points of the lower ends of the left and right rotating arms 18. One of the operating mechanisms is provided with an operating handle H that bends and stretches the bending / stretching mechanism consisting of the link 17 and the rotating arm 18 up and down via a transmission mechanism. The left and right operating mechanisms, the rotating shaft 19 that links the left and right operating mechanisms, and the operating handle H that bends and stretches one of the operating mechanisms constitute the opening / closing operation mechanism for the shoji screen 1. By rotating the operating handle H, the left and right links 17 and the pivot arms 18 are bent and extended, so that the left and right opening / closing operating bars 11 are moved downward or upward.

[0019] [B] Window frame details [B-1] Upper frame As shown in FIG. 3, the upper frame 2 of the window frame has an indoor facing portion 20, an outdoor facing portion 21, and an upper surface portion 22 that horizontally connects the upper portions of the indoor facing portion 20 and the outdoor facing portion 21. The indoor facing portion 20 is composed of a vertical upper portion 200 and a lower portion 201 that extends from the lower end of the upper portion 200 toward the outdoor side and downward. A pocket portion facing the outdoor side is integrally formed at the lower end of the lower portion 201, and an indoor sealing material S1 is attached to the pocket portion across its width. The outdoor facing portion 21 extends vertically, and a downward-facing outdoor pocket portion is integrally formed at its lower end, and an outdoor sealing material S2 is attached to the pocket portion across its width. In the illustrated embodiment, the height of the outdoor pocket portion is located slightly above the height of the indoor pocket portion.

[0020] [B-2] Bottom frame As shown in Fig. 3, the lower frame 3 has a vertical indoor facing portion 30, an upper surface portion 31 extending horizontally from an upper portion of the indoor facing portion 30 toward the outdoor side, and a lower surface portion 32 extending from a lower portion of the indoor facing portion 30 toward the outdoor side. The lower surface portion 32 extends toward the outdoor side relative to the upper surface portion 31, and an outdoor facing portion 33 is integrally formed on the outdoor side of the lower surface portion 32 at a position below the lower surface portion 32, and a vertical outdoor facing surface 330 is formed at the outermost position of the outdoor facing portion 33. A pocket portion facing the outdoor side is integrally formed at the tip of the upper surface portion 31, and an indoor sealing material S3 is attached to the pocket portion across the width. A bent piece 320 is integrally formed at the outdoor side end of the lower surface portion 32.

[0021] [B-3] Vertical frame As shown in Fig. 4, the vertical frame 4 has an indoor side facing portion 40, an inner facing surface 41 extending from the inner side of the facing direction of the indoor side facing portion 40 to the outdoor side, and an outer facing surface 42 extending from the outer side of the facing direction of the indoor side facing surface 40 to the outdoor side. The outer facing surface 42 extends to the outdoor side relative to the indoor facing surface 41, and an outdoor side facing portion 43 is formed extending outward from the outdoor side end of the outdoor side facing surface 42. A pocket portion facing the outdoor side is integrally formed at the tip of the indoor side facing surface 41 of the vertical frame 4, and an indoor side sealing material S4 is attached to the pocket portion along the height direction. A pocket portion facing inward is integrally formed on the inner surface of the outdoor side portion of the outdoor side facing surface 42 of the vertical frame 4, and an outdoor side sealing material S5 is attached to the pocket portion along the height direction.

[0022] As shown in Fig. 4, the vertical frame 5 has an indoor side facing portion 50, an inner facing surface 51 extending from the inner side of the facing direction of the indoor side facing portion 50 to the outdoor side, and an outer facing surface 52 extending from the outer side of the facing direction of the indoor side facing portion 50 to the outdoor side. The outer facing surface 52 extends to the outdoor side relative to the indoor facing surface 51, and an outdoor side facing portion 53 is formed extending outward from the outdoor side end of the outdoor side facing surface 52. A pocket portion facing the outdoor side is integrally formed at the tip of the indoor side facing surface 51 of the vertical frame 5, and an indoor side sealing material S6 is attached to the pocket portion along the height direction. A pocket portion facing inward is integrally formed on the inner surface of the outdoor side portion of the outdoor side facing surface 52 of the vertical frame 5, and an outdoor side sealing material S7 is attached to the pocket portion along the height direction.

[0023] [B-4] Positional relationship between the window frame and the shoji screen As shown in Figure 3, the upper portion 200 of the indoor facing portion 20 of the upper frame 2 and the indoor facing portion 30 of the lower frame 3 are flush with each other. The height center of the outdoor facing portion 33 of the lower frame 3 is an outdoor facing surface 330 that is flush with the outdoor facing portion 21 of the upper frame 2. As shown in Figure 4, the indoor facing portion 40 of the vertical frame 4 and the indoor facing portion 50 of the vertical frame 5 are flush with each other, and the outdoor facing portion 43 of the vertical frame 4 and the outdoor facing portion 53 of the vertical frame 5 are flush with each other. In the window device of this embodiment, when viewed from the side and in a plan view, the indoor facing surface of the window frame (upper part 200 of the indoor facing portion 20, the indoor facing portion 30, the indoor facing portions 40, 50) is located away from the indoor facing portion of the shoji screen 1 in the fully closed position (indoor facing surfaces 60, 70, 80, 90 described below), and the outdoor facing surface of the window frame (outdoor facing portion 21, outdoor facing surface 330, outdoor facing portions 43, 53) is located close to the outdoor facing portion of the shoji screen 1 in the fully closed position (outdoor facing surfaces 61, 71, 81, 91 described below).

[0024] [C] Details of Shoji screen [C-1] Composition of the upper frame and upper end of the shoji screen As shown in FIG. 3, the upper frame 6 of the shoji screen 1 has an interior facing surface 60, an exterior facing surface 61, an upper surface 62 that connects the interior facing surface 60 and the upper portion of the exterior facing surface 61, and an intermediate upper surface 63 that is spaced below the upper surface 62 and connects the interior facing surface 60 and the exterior facing surface 61, and an upper hollow portion H1 is formed between the upper surface 62 and the intermediate upper surface 63. The lower end portion of the interior facing surface 60 and the lower end portion of the exterior facing surface 61 are spaced apart, and the upper end portion of the glass plate 10 is received and fixed between the lower end portion of the interior facing surface 60 and the lower end portion of the exterior facing surface 61. The upper frame 6 according to this embodiment is constructed by combining two members, but it may be integrally formed from one member.

[0025] A folded piece 600 is integrally formed at the lower end of the indoor facing surface 60 facing the outdoor side, and an indoor side gasket (fixing seal material) G1 is provided on the folded piece, and a pocket portion 610 facing the indoor side is integrally formed at the lower end of the outdoor facing surface 61, and an outdoor side gasket G2 is provided in the pocket portion 610. The upper end portion of the glass plate 10 is sandwiched between the indoor side gasket G1 and the outdoor side gasket G2, and the indoor side gasket G1 is in close contact with the upper end portion of the indoor side surface portion 100 of the glass plate 10, and the outdoor side gasket G2 is in close contact with the upper end portion of the outdoor side surface portion 101 of the glass plate 10.

[0026] The upper end surface 102 of the glass plate 10 is spaced apart from the middle upper surface 63, forming a lower space H2 therebetween. The internal space of the upper frame 6 is divided by the middle upper surface 63 into an upper hollow portion H1 and a lower space H2.

[0027] A reinforcing member 64 is provided in the upper hollow portion H1. The reinforcing member 64 is a long member that extends across the entire width of the upper frame 6 of the shoji screen 1 (see Figs. 5 and 6), and has a U-shaped cross section made up of a surface portion 640 with a width substantially the same as the projected dimension of the upper hollow portion H1, and an interior bent piece 641 and an exterior bent piece 642 that are integrally formed on both ends of the surface portion 640 in the width direction. In the illustrated embodiment, the reinforcing member 64 is housed in the upper hollow portion H1 with the face portion 640 as the upper surface, the indoor bent piece 641, and the outdoor bent piece 642 as the hanging piece, the face portion 640 being close to the upper surface 62, the indoor bent piece 641 and the outdoor bent piece 642 being close to the indoor facing surface 60 and the outdoor facing surface 61, respectively, and the lower ends of the indoor bent piece 641 and the outdoor bent piece 642 being in contact with the end portions in the facing direction of the intermediate upper surface 63. In this embodiment, by housing the reinforcing member 64 in a position in which the face portion 640 is positioned on the upper side, a space is formed below the face portion 640 to receive the screw holes formed in the intermediate upper surface 63, and the height dimension of the facing surface of the upper frame 6 can be reduced, resulting in a neat appearance.

[0028] A pocket is formed on the underside of the intermediate upper surface 63 facing the lower space H2, and a thermally expandable fire-resistant member 630 is provided in the pocket over the entire length of the upper frame 6. A thermally expandable fire-resistant member 6000 is provided over the entire length of the upper frame 6 at the lower end of the inner surface of the indoor facing surface 60, located at the corner with the indoor folding piece 600. The outdoor gasket G2 is a composite material made of resin and a thermally expandable fire-resistant material.

[0029] A protrusion 601 is integrally formed at the upper end of the indoor facing surface 60, and when the shoji screen 1 is in the fully closed position, the indoor facing sealing material S1 of the upper frame 2 abuts against the protrusion 601 of the upper frame 6, and the outdoor facing sealing material S2 of the upper frame 2 abuts against the protrusion 620 formed at the corner between the outdoor facing surface 61 and the top surface 62 of the upper frame 6, so that the upper frame 6 of the topmost shoji screen 1 is in close contact with the upper frame 2 of the window frame.

[0030] [C-2] Composition of the bottom frame and bottom end of the shoji screen The bottom frame 7 of the shoji screen 1 has an interior facing surface 70, an exterior facing surface 71, a bottom surface 72 that connects the interior facing surface 70 and the lower portion of the exterior facing surface 71, and an intermediate bottom surface 73 that is spaced above the bottom surface 72 and connects the interior facing surface 70 and the exterior facing surface 71, and a lower hollow portion H3 is formed between the bottom surface 72 and the intermediate bottom surface 73. The internal space of the bottom frame 7 is divided into a lower hollow portion H3 and an upper space H4 by the intermediate bottom surface 73. The upper end portion of the interior facing surface 70 and the upper end portion of the exterior facing surface 71 are spaced apart, and the lower end portion of the glass plate 10 is received and fixed between the upper end portion of the interior facing surface 70 and the upper end portion of the exterior facing surface 71.

[0031] The upper end of the indoor facing surface 70 has a folded piece 700 formed integrally therewith facing the outdoor side, and an indoor side gasket G3 is provided on the folded piece 700, while the upper end of the outdoor facing surface 71 has a pocket portion 710 formed integrally therewith facing the indoor side, and an outdoor side gasket G4 is provided on the pocket portion 710. The lower end portion of the glass plate 10 is sandwiched between the indoor side gasket G3 and the outdoor side gasket G4, and the indoor side gasket G3 is in close contact with the lower end portion of the indoor side surface portion 100 of the glass plate 10, and the outdoor side gasket G4 is in close contact with the lower end portion of the outdoor side surface portion 101 of the glass plate 10.

[0032] A pocket portion that is dish-shaped or concave in cross section is formed on the lower surface of the intermediate lower surface 73 facing the upper space H4, and a thermal expansion fireproof member 730 is provided in the pocket portion along the length of the lower frame 7. A plurality of setting blocks 74 (two in this embodiment) are provided on the intermediate lower surface 73, positioned above the thermal expansion fireproof member 730, spaced apart in the width direction. The lower end surface 103 of the glass sheet 10 is placed on an upper surface 740 of the setting block 74, and the glass sheet 10 is supported by the setting block 74.

[0033] A pocket portion 720 facing the interior side is integrally formed on the underside of the indoor end of the underside 72 of the lower frame 7, and a sealant S8 is attached to the pocket portion so as to be located below the indoor facing surface 70. A lower projection 711 extending downward beyond the underside 72 is integrally formed on the lower end of the outdoor facing surface 71 of the lower frame 7, and the lower projection 711 is located on the outdoor side relative to the outdoor facing surface 71 and hangs down. A pocket portion 721 facing the interior side is integrally formed at the base end of the lower projection 711, and a sealant S9 is attached to the pocket portion 721. The sealant S9 has a thin-walled hanging piece that is located inside the hanging piece of the lower projection 711 and hangs down oppositely.

[0034] When the multiple shoji screens 1 are in a fully closed position, the indoor-side protrusion 601 of the upper frame 6 of the lower shoji screen 1 abuts against the indoor-side sealant S8 of the lower frame 7 of the upper shoji screen 1, the outdoor-side protrusion 620 of the upper frame 6 of the lower shoji screen 1 abuts against the hanging piece of the outdoor-side sealant S9 of the lower frame 7 of the upper shoji screen 1, and the lower-side protrusion 711 of the lower frame 7 of the upper shoji screen 1 is located on the outdoor side of the upper portion of the outdoor-side visible surface 61 of the upper frame 6 of the lower shoji screen 1 and hangs down opposite said upper portion. In this way, the lower frame of the shoji screen located on the upper side and the upper frame of the shoji screen located on the lower side are in close contact with each other to form a joint A.

[0035] In the bottom frame 7 of the lowest shoji screen 1, no sealant is attached to the pocket portion 720 on the indoor side, and the sealant S10 attached to the pocket portion 721 on the outdoor side has a thicker hanging piece than the sealant S9. When the lowest shoji screen 1 is in the fully closed position, the indoor side visible surface 70 of the bottom frame 7 abuts against the indoor side sealant S3 of the bottom frame 3, and the hanging piece of the sealant S10 provided on the outdoor side of the bottom frame 7 abuts against the bent piece 320 formed on the outdoor side end of the lower surface portion 32 of the bottom frame 3, and the bottom frame 7 of the lowest shoji screen 1 is in close contact with the upper frame 3 of the window frame.

[0036] As shown in Fig. 3, a reinforcing member 75 is provided in the lower hollow portion H3 of the lowest shoji screen 1. The reinforcing member 75 is a long member that extends across the entire width of the bottom frame 7 of the shoji screen 1 (see Fig. 6), and has a U-shaped cross section made up of a surface portion 750 with a width substantially the same as the expected dimension of the lower hollow portion H3, and an interior bent piece 751 and an exterior bent piece 752 that are integrally formed on both ends of the surface portion 750 in the width direction. In the illustrated embodiment, the reinforcing member 75 is housed in the lower hollow portion H3 with the surface portion 750 as the upper surface, the interior bent piece 751 as the interior bent piece 752 as the hanging piece, the surface portion 750 adjacent to the intermediate lower surface 73, the interior bent piece 751 as the interior bent piece 752 adjacent to the interior facing surface 70 and the exterior facing surface 71, respectively, and the lower ends of the interior bent piece 751 as the interior bent piece 752 abutting the ends of the lower surface 72 in the projection direction. In the lowest shoji 1, if the surface portion 750 of the reinforcing member 75 is in a dish-like position in contact with the lower surface 72, rainwater will seep in from the joints between the lower frame 7 and the vertical frames 8 and 9, which will easily cause rust. However, in this embodiment, the surface portion 750 is housed in an upward position, thereby preventing rainwater from accumulating as much as possible. In addition, drainage holes 84 are formed at the lower ends of the vertical frames 8, 9 of each shoji screen 1 (see FIG. 2).

[0037] [C-3] Composition of the vertical frame and side end of the shoji screen The vertical frame 8 of the shoji screen 1 has an interior facing surface 80, an exterior facing surface 81, a side end surface 82 that connects the exterior parts of the interior facing surface 80 and the exterior facing surface 81 in the facing direction, and an intermediate facing surface 83 that is spaced inward in the facing direction of the side end surface 82 and connects the interior facing surface 80 and the exterior facing surface 81, and an outer hollow portion H5 is formed between the side end surface 82 and the intermediate facing surface 83. The exterior facing surface 81 is integrally formed with a protruding portion 811 that protrudes outward from the side end surface 82. The inner end of the interior facing surface 80 and the inner end of the exterior facing surface 81 are spaced apart, and one side end portion of the glass plate 10 is received and fixed between the inner end of the interior facing surface 80 and the inner end of the exterior facing surface 81.

[0038] A bent piece 800 is integrally formed facing the exterior of the room at the inner end in the facing direction of the interior facing surface 80, and an interior gasket G5 is provided on the bent piece 800, and a pocket portion 810 facing the interior is integrally formed at the inner end in the facing direction of the exterior facing surface 81, and an exterior gasket G6 is provided in the pocket portion 810. One side edge portion of the glass sheet 10 is sandwiched between the interior gasket G5 and the exterior gasket G6, and the interior gasket G5 is in close contact with one side edge portion of the interior side surface portion 100 of the glass sheet 10, and the exterior gasket G6 is in close contact with one side edge portion of the exterior side surface portion 101 of the glass sheet 10.

[0039] One side end face 104 of the glass plate 10 and the middle projected surface 83 are spaced apart, and an inner space H6 is formed in the vertical frame 8. The internal space of the vertical frame 8 is divided into an outer hollow portion H5 and an inner space H6 by the middle projected surface 83. A pocket portion is formed in the middle projected surface 83 facing the inner space H6, and a thermally expandable fire-resistant member 830 is provided in the pocket portion along the height direction. At the inner end of the indoor side projected surface 80 in the projected direction, a thermally expandable fire-resistant member 8000 is provided along the height direction at the corner with the indoor side bent piece 800. The outdoor side gasket G6 is a composite material made of resin and a thermally expandable fire-resistant material.

[0040] When the shoji screen 1 is in the fully closed position, the indoor facing surface 80 of the vertical frame 8 of the shoji screen 1 abuts against the indoor facing sealing material S4 of the vertical frame 4, and the protrusion 811 of the outdoor facing surface 81 abuts against the outdoor facing sealing material S5, so that the vertical frame 8 of the shoji screen 1 is in close contact with the vertical frame 4 of the window frame.

[0041] The vertical frame 9 of the shoji screen 1 has an interior facing surface 90, an exterior facing surface 91, a side end surface 92 that connects the exterior parts of the interior facing surface 90 and the exterior facing surface 91 in the facing direction, and an intermediate facing surface 93 that is spaced apart on the inside of the side end surface 92 in the facing direction and connects the interior facing surface 90 and the exterior facing surface 91, and an outer hollow portion H7 is formed between the side end surface 92 and the intermediate facing surface 93. The exterior facing surface 91 is integrally formed with a protruding portion 911 that protrudes outward from the side end surface 92. The inner end of the interior facing surface 90 and the inner end of the exterior facing surface 91 are spaced apart, and the other side end portion of the glass plate 10 is received and fixed between the inner end of the interior facing surface 90 and the inner end of the exterior facing surface 91.

[0042] A bent piece 900 is integrally formed facing the exterior of the room at the inner end in the facing direction of the interior facing surface 90, and an interior gasket G7 is provided on the bent piece 900, and a pocket portion 910 facing the interior is integrally formed at the inner end in the facing direction of the exterior facing surface 91, and an exterior gasket G8 is provided on the pocket portion 910. The other side edge portion of the glass sheet 10 is sandwiched between the interior gasket G7 and the exterior gasket G8, and the interior gasket G7 is in close contact with the other side edge portion of the interior side surface portion 100 of the glass sheet 10, and the exterior gasket G8 is in close contact with the other side edge portion of the exterior side surface portion 101 of the glass sheet 10.

[0043] The other side end surface 105 of the glass plate 10 and the middle projected surface 93 are spaced apart, and an inner space H8 is formed in the vertical frame 9. The internal space of the vertical frame 9 is divided into an outer hollow portion H7 and an inner space H8 by the middle projected surface 93. A pocket portion is formed in the middle projected surface 93 facing the inner space H8, and a thermal expansion fire-resistant member 930 is provided in the pocket portion along the height direction. At the inner end of the indoor side projected surface 90 in the projected direction, a thermal expansion fire-resistant member 9000 is provided along the height direction at the corner with the indoor side bent piece 900. The outdoor side gasket G8 is a composite material made of resin and a thermal expansion fire-resistant material.

[0044] When the shoji screen 1 is in the fully closed position, the indoor facing surface 90 of the vertical frame 9 of the shoji screen 1 abuts against the indoor facing sealing material S6 of the vertical frame 5, and the protrusion 911 of the outdoor facing surface 91 abuts against the outdoor sealing material S8, so that the vertical frame 9 of the shoji screen 1 is in close contact with the vertical frame 5 of the window frame.

[0045] [D] Fireproof structure [D-1] Background The window device according to this embodiment is made up of a window frame that is made up of an upper frame 2, a lower frame 3, and left and right vertical frames 4 and 5, which form a window opening, and multiple shoji screens 1 that are vertically connected to the window frame and open and close the window opening. When the window opening is fully closed, the upper frame 6 of the top shoji screen 1 is in close contact with the upper frame 2, the lower frame 7 of the bottom shoji screen 1 is in close contact with the lower frame 3, and the lower frame 7 of the upper shoji screen 1 and the upper frame 6 of the lower shoji screen 1 are in close contact with each other to form a joint A. In this state, it is important that no gaps that are disadvantageous in terms of fire prevention are formed between the outside space and the inside space partitioned by the shoji screens 1, even when heated for a predetermined period of time.

[0046] [D-2] Fireproof structure with reinforcing members on the frame In this embodiment, in multiple shoji screens 1 arranged vertically, a reinforcing member 64 is provided across the width of the upper frame 6 of the top shoji screen 1, and a reinforcing member 75 is provided across the width of the lower frame 7 of the bottom shoji screen 1. The frame of the shoji screen 1 according to this embodiment is made of aluminum, whereas the reinforcing members 64, 75 are made of a metal with a higher melting point than aluminum, such as steel.

[0047] There is a risk that the upper frame 6 and lower frame 7, which extend horizontally, of the shoji screen 1 may deform due to heating during a fire, but by providing a reinforcing member 64 extending in the width direction on the upper frame 6 of the topmost shoji screen 1, deformation of the upper frame 6 due to heat during a fire is minimized, and gaps are prevented from forming at the upper end of the window opening in the fully closed state (between the upper frame 6 of the topmost shoji screen 1 and the upper frame 2 of the window frame), and by providing a reinforcing member 75 extending in the width direction on the lower frame 7 of the lowest shoji screen 1, deformation of the lower frame 7 due to heat during a fire is minimized, and gaps are prevented from forming at the lower end of the window opening in the fully closed state (between the lower frame 7 of the lowest shoji screen 1 and the lower frame 3 of the window frame).

[0048] The above technical concept can also be applied to a window device that opens and closes a window opening with a single shoji screen. Specifically, by providing reinforcing members extending in the width direction on the upper and lower frames of a single shoji screen, it is possible to minimize deformation of the upper and lower frames due to heat during a fire, and to minimize the occurrence of gaps between the upper end of the shoji screen and the upper frame, and between the lower end of the shoji screen and the lower frame.

[0049] In this embodiment, at the joint A formed by the bottom frame 7 of the upper shoji screen 1 and the top frame 6 of the lower shoji screen 1, the top frame 6 of the lower shoji screen 1 is provided with a reinforcing member 64 across its width. As described above, the reinforcing member is made of a metal with a higher melting point than aluminum, for example, steel.

[0050] Heat during a fire may cause the upper frame 6 and the lower frame 7 of the shoji 1, which extend horizontally, to deform. If the upper frame 6 and the lower frame 7 forming the joining part A deform, a gap may be formed in the joining part A. In this embodiment, a reinforcing member 64 extending in the width direction is provided on the upper frame 6 forming the joining part A, thereby suppressing the deformation of the upper frame 6 due to heat during a fire as much as possible, and preventing the formation of a gap in the adjacent part of the upper and lower shoji 1 that are adjacent vertically and completely close the window opening. Heat during a fire may cause the lower frame 7 of the upper shoji 1 to deform so as to sag downward, but the upper frame 6 of the lower shoji 1 adjacent below the lower frame 7 counters the deformation of the upper lower frame 7, preventing the formation of a gap in the joining part A as much as possible.

[0051] The manner of preventing the formation of a gap at the joint portion A when the window opening is fully closed is not limited to providing a reinforcing member 64 extending in the width direction on the upper frame 6 that forms the joint portion A, but may also include providing a reinforcing member 75 extending in the width direction on the lower frame 7 that forms the joint portion A, or providing reinforcing members 64, 75 extending in the width direction on both the upper frame 6 and the lower frame 7 that form the joint portion A.

[0052] The window device according to this embodiment is a sliding window, and when opening and closing the screen 1, the lower end moves a greater amount than the upper end. By providing a reinforcing member 64 to the upper frame 6 that forms the joining part A, the opening and closing operation of the screen 1 is made lighter than when a reinforcing member 64 is provided to the lower frame 7 that forms the joining part A (the reinforcing member 64 is made of steel, which has a greater specific gravity than the aluminum that mainly constitutes the screen 1, and the weight of the lower end of the screen 1 is greater).

[0053] When viewing the window device according to this embodiment as a whole, as shown in Fig. 3, when the window opening is opened and closed with two shoji screens 1, a reinforcing member 64 is provided on the upper frame 6 of the upper shoji screen 1, a reinforcing member 64 is provided on the upper frame 6 of the lower shoji screen 1, and a reinforcing member 75 is provided on the lower frame 7. Also, as shown in Fig. 11, when the window opening is opened and closed with four shoji screens 1, a reinforcing member 64 is provided on the upper frame 6 of all the shoji screens 1 (the uppermost shoji screen 1, the shoji screen 1 located in the middle, and the lowermost shoji screen 1), and a reinforcing member 75 is provided on the lower frame 7 of the lowermost shoji screen 1. The reinforcing members 64 and 75 according to this embodiment extend along the length directions of the upper frame 6 and the lower frame 7, thereby preventing the upper frame 6 and the lower frame 7 from deforming and sagging downward due to heat during a fire. Furthermore, when the shoji screen 1 is subjected to heat during a fire, pressure may act in different directions in the front-to-back direction (indoor-outdoor direction) on the upper frame 6 and the lower frame 7, but the surfaces 640, 750 of the reinforcing members 64, 75 according to this embodiment are able to resist these pressures because they extend in the thickness direction (projection direction) of the shoji screen 1. In this way, by providing reinforcing members on specific frames extending horizontally, it is possible to provide a fireproof structure without providing reinforcing members on the left and right vertical frames 8, 9 of each shoji screen 1.

[0054] [D-3] Fireproof structure between the four-way frame and the glass panel Heat during a fire may cause gaps to form between the four perimeter frames of the shoji screen 1 and the glass sheet 10, resulting in communication between the indoor and outdoor spaces. In this embodiment, the upper frame 6 has thermally expandable fire-resistant members 630, 6000 provided across its width facing the lower space H2 of the upper frame 6 into which the upper end portion of the glass sheet 10 is received, and the gasket G2 is thermally expandable. The lower frame 7 has a thermally expandable fire-resistant member 7000 provided across its width facing the upper space H4 of the lower frame 7 into which the lower end portion of the glass sheet 10 is received, and a thermally expandable fire-resistant member 730 provided across its width on the middle lower surface 73. Gasket G4 is thermally expandable, and in the vertical frames 8, 9, thermally expandable fire-resistant members 830, 8000, 930, 9000 are provided along the height direction facing the inner space of the vertical frames 8, 9 into which the side ends of the glass plate 10 are received. Gaskets G6, G8 are thermally expandable, and these thermally expandable fire-resistant members expand due to the heat during a fire, thereby preventing as much as possible the occurrence of gaps between the frames circumferentially surrounding the shoji screen 1 and the glass plate 10.

[0055] [D-4] Improving the fire resistance of the bottom frame of shoji screens In the shoji screen 1 into which the glass plate 10 is fitted, a setting block 74 is provided on the bottom frame 7 of the shoji screen 1, and the bottom end surface 103 of the glass plate 10 is supported on the top surface 740 of the setting block 74. In this embodiment, a thermally expandable fireproof member 730 is provided in the dish-shaped or concave pocket portion of the middle lower surface 73 of the bottom frame 7 along the length of the bottom frame 7, but the setting block 74 is provided so as to cover the thermally expandable fireproof member 730, and there is a risk that the expansion of the thermally expandable fireproof member 730 is insufficient in the area where the setting block 74 is provided, and for example, the area near the gasket G3 cannot be sufficiently blocked. This embodiment is intended to further improve the fireproof performance of the bottom frame 7 of the shoji screen 1.

[0056] This embodiment will be described with reference to the right diagrams of Figures 7 to 10. As shown in Figures 7 and 8, the projected width of the upper surface 740 of the setting block 74 is larger than the thickness of the glass sheet 10, and the upper surface 740 of the setting block 74 has an upper surface 740' on which the lower end surface 103 of the glass sheet 10 is not placed. A thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74, spaced apart from the indoor side surface portion 100 of the glass sheet 10. No thermal expansion fireproof member is provided between the lower end surface 103 of the glass sheet 10 and the upper surface 740 of the setting block 74, and the thermal expansion fireproof member 7400 provided on the upper surface 740' is located above the level of the lower end surface 103 of the glass sheet 10. In comparison with the embodiment shown in FIG. 3, the visible width of the upper surface of the setting block 74 in FIG. 3 is slightly larger than the thickness of the glass plate 10, whereas in FIG. 7, the visible width of the upper surface 740 of the setting block 74 is approximately the same as the visible dimension of the internal space of the lower frame 7, and the upper surface 740 of the setting block 74 has an upper surface 740' with a sufficient area.

[0057] In this embodiment, the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74 provided on the thermal expansion fireproof member 730 extending in the length direction of the lower frame 7, so that the thermal expansion fireproof member (730+7400) extending continuously in the width direction of the lower frame 7 is provided in the internal space of the lower frame 7 in a plan view as shown in Fig. 8, and the thermal expansion fireproof member (730+7400) expands evenly over the entire width of the internal space of the lower frame 7 due to heat during a fire, and the internal space can be blocked. In addition, the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block away from the visible surface (indoor side surface portion 100) of the glass plate 10, so that when fitting the glass plate 10 on site, the glass plate 10 can be installed so as to avoid the thermal expansion fireproof member 7400 (the thermal expansion fireproof member 7400 can be used for positioning), which improves workability.

[0058] In Figures 7(A), (B), and (C), the upper surface 740' of the setting block 74 has a portion that faces and is spaced below the folded piece 700 of the indoor facing surface 70 of the bottom frame 7, and at least a part of the thermally expandable fire-resistant member 7400 is located in the portion that faces and is spaced below the folded piece 700 of the upper surface 740'.

[0059] In the embodiment shown in Fig. 7(A) and Fig. 8(A), the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74 at a position separated from the indoor side surface portion 100 of the glass sheet 10 and separated from the indoor side edge of the upper surface 740'. In the embodiment shown in Fig. 7(B), (C), Fig. 8(B), and (C), the thermal expansion fireproof member 7400 is provided on the upper surface 740' of the setting block 74 at a position separated from the indoor side surface portion 100 of the glass sheet 10 and separated from the indoor side edge of the upper surface 740'. The lower diagram of Fig. 8(B) can be used as the lower diagram of Fig. 8(C).

[0060] In the embodiment shown in Figures 7(A) and (B), a hanging piece 701 is formed integrally with the tip of a bent piece 700 extending horizontally toward the outside of the room, and a thermally expandable fire-resistant member 7000 is provided across the width of the lower frame 7 at the outside portion of the hanging piece 701. In the embodiment shown in Figure 7(C), a thermally expandable fire-resistant member 7000 is provided across the width of the lower frame 7 at the base end side of the bent piece 700. When the window opening is fully closed and the shoji screen 1 is heated by heat during a fire, the thermally expandable fire-resistant member 730, the thermally expandable fire-resistant member 7400, and the thermally expandable fire-resistant member 7000 expand in the internal space of the lower frame 7, and work together to close the internal space of the lower frame 7. In the embodiment shown in Figures 7(A) and (C), a thermally expandable fire-resistant member 7400 is provided below the upper thermally expandable fire-resistant member 7000, and these work together to more reliably seal the internal space of the lower frame 7.

[0061] The configuration for improving the fireproof performance of the bottom frame 7 of the shoji screen 1 is not limited to the shoji screen 1 of a window device, but can be provided to architectural panels in general that require fireproof performance. That is, this specification discloses an architectural panel in which glass is embedded, the bottom frame of the architectural panel is provided with a setting block, the lower end of the glass is supported on the upper surface of the setting block, the projected width of the upper surface of the setting block is larger than the plate thickness of the glass, and a thermally expandable fireproof member is provided on the upper surface of the setting block at a distance from the visible surface of the glass. [Explanation of symbols]

[0062] 1 Shoji (architectural panel) 10 Glass plate (glass) 103 Bottom surface of glass plate 2 Top Frame 3 Bottom frame 4, 5 Vertical frame 6. Upper frame of shoji screen 7. Shoji bottom frame 70 Interior side (first side) 71 Outside appearance (2nd appearance) 700 Bent piece (first upper piece) 710 Pocket section (second upper piece) 72 Bottom surface 73 Middle bottom surface 730 Thermal expansion fire-resistant member (lower thermal expansion fire-resistant member) 7000 Thermal expansion fire-resistant member (upper thermal expansion fire-resistant member) 8, 9 Shoji vertical frame 64 Reinforcement members (intermediate reinforcement, upper end reinforcement) 74 Setting Block 740 Top of setting block 740´ Upper surface of the setting block (part where the lower end of the glass plate is not placed), protruding part, first part 7400 Thermal expansion fire-resistant materials 75 Reinforcement member (lower end reinforcement member) A. Matching section

Claims

1. A window frame that includes an upper frame, a lower frame, and left and right vertical frames and forms a window opening; A number of shoji screens are connected vertically to the window frame to open and close the window opening; In a window device comprising: The window device is a sliding window, and when the plurality of screens are opened or closed, the movement amount of the lower end portion of each screen is larger than the movement amount of the upper end portion of each screen, When the window opening is fully closed, the upper frame of the top shoji screen is in close contact with the upper frame, and the lower frame of the bottom shoji screen is in close contact with the lower frame. The bottom frame of the upper shoji screen and the top frame of the lower shoji screen are in close contact with each other to form a joint. The upper frame of the topmost shoji screen, the lower frame of the bottommost shoji screen, and the upper frame and the lower frame forming the joint portion are made of aluminum, An upper reinforcing material is provided on the upper frame of the topmost shoji screen across the width, and a lower reinforcing material is provided on the lower frame of the bottommost shoji screen across the width, At the joint portion, no intermediate reinforcement material is provided on the lower frame of the upper shoji screen, and an intermediate reinforcement material is provided only on the upper frame of the lower shoji screen across the width direction, The upper reinforcing member, the lower reinforcing member, and the intermediate reinforcing member are made of a metal having a higher melting point than aluminum and a higher specific gravity than aluminum. Window device.

2. At the joint portion, the internal space of the upper frame of the lower shoji is divided into an upper hollow portion and a lower space by the middle upper surface, The upper hollow portion is provided with the intermediate reinforcement member placed on the intermediate upper surface, A thermally expandable fire-resistant member is provided on the lower surface of the intermediate upper surface and faces the lower space.

2. The window device of claim 1.

3. The lower reinforcement member has a U-shaped cross-sectional shape consisting of a surface portion, an interior bent piece, and an exterior bent piece integrally formed at both widthwise ends of the surface portion, and is provided in the lower hollow portion of the lowest shoji screen with the surface portion as the upper surface and the interior bent piece and the exterior bent piece as the hanging pieces. Window device according to claim 1 or 2.

4. The window device according to any one of claims 1 to 3, wherein the left and right vertical frames of the shoji screen are not provided with reinforcing members.

Images