JP7614775B2 - Fittings - Google Patents

Description

This disclosure relates to building materials.

In recent years, grilles with louvers that can be adjusted in angle like blinds have been adopted in buildings. These grilles are also called adjustable louver grilles, and when the louvers are closed, they block the view from outside the building. On the other hand, when the louvers are open, sunlight and natural breezes can be let into the building. For example, Patent Document 1 discloses a device that includes a sliding shoji screen, a grille that is placed on the outside of the sliding shoji screen and is equipped with multiple louvers, and an insect screen door that is placed between the sliding shoji screen and the grille.

JP 2012-041731 A

When a fire breaks out indoors with the louvers closed, hot gas is generated from the metal frame to which the movable louver grille is attached. The hot gas generated from the frame accumulates between the shoji screen and the louver grille in the depth direction. When the louvers are closed, or when a screen door is provided between the louver grille and the shoji screen, the hot gas accumulated between the louver grille or the screen door and the shoji screen may spontaneously ignite, or the hot gas may form a through hole in the frame and cause a flame to break out near the through hole. In each of the configurations that exhibit the fire prevention function described above, if the entire louver grille or the mechanism that opens and closes each individual louver is lost due to hot gas, the hot gas accumulated between the louver grille and the shoji screen is not discharged to the outside, and there is a risk of spontaneous ignition of the hot gas or flame breaking out from the frame as described above. On the other hand, there is a demand for a screen door or the like to be provided during normal times to allow air to pass from the outside while preventing the intrusion of garbage, insects, etc. into the room even when the louvers are open.

This disclosure provides fittings that allow ventilation between the outdoors and indoors, prevent dirt, insects, etc. from entering the interior, and can exhaust high-temperature gases generated inside the building in the event of a fire, etc., to the outdoors without opening or closing grilles.

The fixture of the present disclosure comprises a frame body in which a shoji screen is housed, a grille facing the shoji screen and positioned outdoors relative to the shoji screen, which is formed to be able to be opened and closed, a screen door facing the shoji screen and positioned between the grille and the shoji screen, and a connecting member that connects the peripheral portion of the screen door to the frame body without any gaps and connects the peripheral portion to the grille , the connecting member having an upper connecting member, a side connecting member and a lower connecting member, and when the area near the indoor side of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in any one of the upper connecting member, the side connecting member and the lower connecting member at a position facing the frame body. The fixture disclosed herein comprises a frame body in which a shoji screen is housed, a grille facing the shoji screen and positioned outdoors relative to the shoji screen, which is formed to be able to be opened and closed, a screen door facing the shoji screen and positioned between the grille and the shoji screen, and a connecting member that connects the peripheral portion of the screen door to the frame body without any gaps and also connects the peripheral portion to the grille , and when the area near the indoor side of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in an upper connecting member that is positioned facing the upper frame of the frame body. The fittings disclosed herein comprise a grille attached to a frame body in which a shoji screen is housed, facing the shoji screen and positioned outdoors rather than on the other side, and configured to be able to be opened and closed; a screen door facing the shoji screen and positioned between the grille and the shoji screen; and a connecting member which connects the peripheral edge of the screen door to the frame body without any gaps; when the area near the indoor side of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in an upper connecting member of the connecting member which is positioned opposite the upper frame of the frame body, and the upper connecting member is formed of a molten material which melts at or above the predetermined temperature.

FIG. 1 is an oblique view of a first embodiment of a screen-equipped louvered grille according to the present disclosure, viewed from outdoors. 2 is a cross-sectional view in the height direction of the screen louver grille shown in FIG. 1 as seen from the width direction. 2 is a cross-sectional view in the width direction of the screen louver grille shown in FIG. 1 as viewed from the height direction. FIG. 2 is a cross-sectional view showing the state of the screen louver grille shown in FIG. 1 in an emergency. FIG. 2 is a cross-sectional view showing a modified example of the screen louver grille shown in FIG. 1. A cross-sectional view in the height direction of a screen louvered surface grille of a second embodiment according to the present disclosure, as viewed from the width direction. A cross-sectional view in the width direction of a screen louvered surface grille of a second embodiment according to the present disclosure, as viewed from the height direction. A cross-sectional view in the height direction of a third embodiment of a screen louvered surface grille according to the present disclosure, as viewed from the width direction. A cross-sectional view in the width direction of a screen louver grille of a third embodiment according to the present disclosure, as viewed from the height direction.

First Embodiment
As shown in FIG. 1, a first embodiment of the present disclosure, a louvered grille with a screen door (fitting) 50, is attached to a frame 10. The frame 10 is provided in an opening 5 formed in a wall 2 of a building (not shown). In the first embodiment, an outdoor surface 10a of the frame 10 is approximately overlapped with an outdoor surface 2a of the wall 2 in a depth direction D3. The frame 10 accommodates shoji screens 14 and 15 via a door roller 35 (see FIG. 2). Each of the shoji screens 14 and 15 has a width that is approximately half the width of the inner region surrounded by the frame 10 in a width direction D1. Each of the shoji screens 14 and 15 has a height that is approximately equal to the height of the inner region surrounded by the frame 10 in a height direction D2. The shoji screens 14 and 15 are accommodated in the frame 10 with a shift from each other in the depth direction D3, and are movable along the width direction D1 within the inner region of the frame 10, and are so-called sliding shoji screens. The frame 10 is made of a material such as aluminum or stainless steel.

The louvered screen grille 50 protrudes toward the outside in the depth direction D3 beyond the frame 10 and the shoji screens 14 and 15. The louvered screen grille 50 comprises a movable louvered screen grille (grating) 60, a screen 90, and a connecting member 100. Figure 1 is a perspective view of the louvered screen grille 50 with a portion cut away.

The louvered grille 60 is attached to the frame body 10 via a connecting member 100. The louvered grille 60 includes a frame body 62, a mullion 64, a plurality of louvers 70, and an opening/closing device 80. The frame body 62 overlaps with the frame body 10 when viewed from the depth direction D3, and has a width corresponding to the width of the inside of the frame body 10, a height corresponding to the height of the inside of the frame body 10, and a predetermined depth. The mullion 64 is arranged so as to divide the inner area surrounded by the frame body 62 into approximately equal parts in the width direction D2, and extends along the height direction D2. Both ends of the mullion 64 in the height direction D2 are connected to the upper horizontal frame 67 and the lower horizontal frame 68 of the frame body 62 that extend along the width direction D1. That is, the inner area of the frame body 62 is divided into small areas adjacent to each other in the width direction D1 by the mullion 64. The frame body 62 and the mullion 64 are made of a material such as aluminum or stainless steel.

2 and 3, the louver 70 includes a louver body 72 and an axis member 74. The louver body 72 is formed in a long plate shape and is disposed between one of the two vertical frames 65, 66 extending along the height direction D2 of the frame body 62 and the upright 64, with the longitudinal direction facing the width direction D1. The axis member 74 penetrates the center of the louver body 72 in the height direction D2 and the depth direction D3 along the width direction D1. As shown in FIG. 2, the louver body 72 can rotate at any angle in the circumferential direction around the axis of the axis member 74 when viewed from the width direction D1. As shown in FIG. 3, the end of the axis member 74 closer to one of the vertical frames 65, 66 in the width direction D1 penetrates one of the axis insertion holes 75, 75 provided in each of the vertical frames 65, 66 and is fixed to one of the vertical frames 65, 66. The end of the shaft member 74 closer to the upright 64 in the width direction D1 passes through one of the shaft insertion holes 76, 76 provided in the upright 64 and is fixed to the upright 64. The material of the louver body 72 is, for example, synthetic resin such as polyamide, polypropylene, polyethylene, or acrylonitrile-butadiene-styrene copolymer synthetic resin (ABS resin). The strength of the louver body 72 may be increased by driving a metallic screw into the louver body 72. The material of the shaft member 74 is, for example, aluminum, stainless steel, synthetic resin such as polyamide, or the like.

As shown in Figs. 1 to 3, the multiple louvers 70 are arranged at a predetermined interval in a small area surrounded by the vertical frame 65 or vertical frame 66, the horizontal frames 67, 68, and the mullion 64. The predetermined interval is appropriately set so that when each of the multiple louver bodies 72 is rotated circumferentially around the axis of the shaft member 74 so as to be maximally aligned in the height direction D2, the end 72e in the height direction D2 of one louver body 72 contacts the end 72f in the height direction D2 of the adjacent louver body 72 in the height direction D2 in the depth direction D3. In other words, the louver lattice 60 is arranged facing the shoji screens 14, 15 in the depth direction D3, and is arranged on the outdoor side of either of the shoji screens 14, 15.

In the following, in the louver 70, as described above, the state in which the ends 72e, 72f of the louver bodies 72, 72 adjacent to each other in the height direction D2 are in contact with each other is the closed state, and the state in which the ends 72e, 72f of the louver bodies 72, 72 are separated from each other is the open state. In particular, the fully open state is a state in which each of the multiple louver bodies 72 is rotated around the axis of the shaft member 74 in the circumferential direction so as to be approximately parallel to the depth direction D3, and the interval between the louver bodies 72, 72 in the height direction D2 is maximized. The fully open state is included in the open state. When the louver 70 is in the closed state, ventilation is not performed between the outdoors and the indoors. On the other hand, when the louver 70 is in the open state, ventilation is performed between the outdoors and the indoors. When the louver 70 is in the fully open state, the amount of ventilation between the outdoors and the indoors is maximum in the open state. In other words, the louver lattice 60 is formed so as to be openable and closable by the multiple louvers 70.

As shown by the dashed line and the two-dot chain line in FIG. 2, the opening and closing device 80 is provided at a predetermined position on the inner side surface in the width direction D1 of each of the vertical frames 65, 66. The inner side means the side and relative position closer to the center when viewed from the depth direction D3 of the louver lattice 60 or the frame body 10 in each of the width direction D1 and the height direction D2. The opening and closing device 80 rotates each of the multiple louver bodies 72 at an arbitrary angle in the circumferential direction around the axis of the shaft member 74, and switches the multiple louvers 70 to either a closed state or an open state. The opening and closing device 80 may be capable of switching the open and closed state of some of the multiple louvers 70, or may be capable of switching the open and closed state of all of the multiple louvers 70. The main material of the opening and closing device 80 is a synthetic resin such as polyamide. The locking portion of the opening and closing device 80 that locks the opening and closing of the louvers 70 is made of, for example, stainless steel.

2 and 3, the screen door 90 is disposed facing the shoji screens 14 and 15 in the depth direction D3, and is disposed between the louver lattice 60 and the shoji screens 14 and 15. The screen door 90 has a width corresponding to the width of the inside of each of the frames 10 and 62, and a height corresponding to the height of the inside of each of the frames 10 and 62, so that the screen door 90 overlaps the inner area of the frame 10 and the inner area of the frame 62 when viewed from the depth direction D3. The material of the screen door 90 is, for example, polypropylene, stainless steel, etc. By providing the screen door 90, when the louver 70 is in the open state, ventilation between the outdoors and the indoors is not impeded, and the intrusion of dust and insects from the outdoors into the indoors is prevented.

The connection member 100 connects the peripheral portion 92 of the screen door 90 and the frame body 10 in the depth direction D3. More specifically, as shown in Figs. 1 to 3, the connection member 100 connects the surface 10a of the frame body 10 and the indoor peripheral end surface 62b of the frame body 62, and is disposed so as to surround the space 250 between the screen door 90 and the frame body 10 in the depth direction D3, sealing the space 250 under normal conditions. The connection member 100 is formed in a rectangular frame shape when viewed from the depth direction D3, approximately overlaps with the frame body 62, and has a width corresponding to the width of the frame body 62, a height corresponding to the height of the frame body 62, and a predetermined depth.

The connection member 100 includes an upper connection member 102, side connection members 104 and 106, and a lower connection member 108. One end 102p of the upper connection member 102 in the width direction D1 and one end 108p of the lower connection member 108 in the width direction D1 are connected by the side connection member 104. The other end 102q of the upper connection member 102 in the width direction D1 and the other end 108q of the lower connection member 108 in the width direction D1 are connected by the side connection member 106. Of the connection member 100, the upper connection member 102 is disposed at a position facing the upper frame 11 extending along the width direction D1 of the frame body 10. The side connection member 104 is disposed at a position facing the vertical frame 12 extending along the height direction D2 of the frame body 10. The side connection member 106 is disposed at a position facing the vertical frame 13 extending along the height direction D2 of the frame body 10. The lower connection member 108 is disposed in a position facing the lower frame 18, which extends along the width direction D1 of the frame body 10.

As shown in FIG. 3, the connection member 100 includes brackets 110 and 130 that are disposed on the inside of the side connection members 104 and 106 in the width direction D1. The bracket 110 includes a frame body fitting portion 112, a side piece portion 114, and a frame body connecting portion 116. The vertical frames 12 and 13 are provided with protruding pieces 25 and 26 that protrude inward in the width direction D1 from the outdoor side ends of each.

The frame body fitting portion 112 is fitted into the protruding piece 25 and contacts the protruding piece 25 from the inside in the width direction D1 and from the indoor side and the outdoor side in the depth direction D3. The frame body fitting portion 112 is fixed to the protruding piece 25 from the indoor side in the depth direction D3 by a screw 118. The side piece portion 114 extends from the outdoor side end of the frame body fitting portion 112 along the depth direction D3. The frame body connecting portion 116 extends from the outdoor side end of the side piece portion 114 toward the inside in the width direction D2. The frame body connecting portion 116 is fixed to the connecting member connecting portion 165 of the vertical frame 65 from the indoor side in the depth direction D3 by a screw 120. The connecting member connecting portion 165 protrudes from the indoor side end 126 of the vertical frame 65 to the indoor side in the depth direction D3. The outdoor end 122 of the side connection member 104 is fixed to the end 126 from the indoor side in the depth direction D3 with a screw 124. A screen fixing part 128 is provided at the inner end of the end 126 in the width direction D2. The peripheral part 92 of the screen 90 is fixed to the screen fixing part 128.

The bracket 130 has a shape similar to that of the bracket 110, and includes a frame body fitting portion 132, a side piece portion 134, and a frame body connecting portion 136. The frame body fitting portion 132 is fitted to the protruding piece 26, and contacts the protruding piece 26 from the inside in the width direction D1 and from the indoor side and the outdoor side in the depth direction D3. The frame body fitting portion 132 is fixed to the protruding piece 26 from the indoor side in the depth direction D3 by a screw 138. The side piece portion 134 extends from the outdoor side end of the frame body fitting portion 132 along the depth direction D3. The frame body connecting portion 136 extends from the outdoor side end of the side piece portion 134 toward the inside in the width direction D2 so as to approach the frame body connecting portion 116. The frame body connecting portion 136 is fixed to the connection member connecting portion 166 of the vertical frame 66 from the indoor side in the depth direction D3 by a screw 140. The connection member coupling portion 166 protrudes from the indoor end portion 146 of the vertical frame 66 toward the indoor side in the depth direction D3. The outdoor end portion 142 of the side connection member 106 is fixed to the end portion 146 from the indoor side in the depth direction D3 with a screw 144. A screen fixing portion 148 is provided at the inner end portion of the end portion 146 in the width direction D2. The peripheral portion 92 of the screen 90 is fixed to the screen fixing portion 148.

The material of each of the side connection members 104, 106 is an infusible material that does not melt above a predetermined temperature, such as a metal material such as aluminum or stainless steel. The predetermined temperature refers to a threshold temperature that is recognized as being high if exceeded in the event of a fire, etc., and is, for example, 100°C, but is determined appropriately taking into account the fire resistance required of the building. The material of each of the brackets 110, 130 and the screws 120, 124, 140, 144 is, for example, aluminum, stainless steel, etc.

As described above, the side connection members 104, 106 of the connection member 100 are screwed to both the frame body 10 and the frame body 62 via the brackets 110, 130, and are firmly fixed to the frame bodies 10, 62. Therefore, as shown in FIG. 2, the upper connection member 102 and the lower connection member 108 are positioned so that they contact the frame body 10 from the outdoor side in the depth direction D3.

The upper connection member 102 includes a central portion 150 and a clamping portion 180. The central portion 150 includes an upper piece portion 152 and a frame body fitting portion 154. The upper piece portion 152 extends from near the outdoor end of the frame body 10 to the outdoor side along the depth direction D3. The frame body fitting portion 154 extends slightly downward from the outdoor end of the upper piece portion 152 and then extends forward and backward in the depth direction D3. The frame body fitting portion 154 fits into a fitting portion 156 formed in the horizontal frame 67. The fitting portion 156 is formed on the upper side of the horizontal frame 67 in the height direction D2 and on the indoor side end 167 in the depth direction D3. The fitting portion 156 contacts the frame body fitting portion 154 from below in the height direction D2 and from the indoor side and outdoor side in the depth direction D3. The clamping portion 180 clamps the center portion 150 from above and below in the height direction D2. The upper clamping portion 180 extends further outdoors than the lower clamping portion 180, and covers the horizontal frame 67 from above in the height direction D2. The end portion 167 of the horizontal frame 67 has a screen fixing portion 172 that protrudes indoors. The peripheral portion 92 of the screen 90 is fixed to the screen fixing portion 172. The lower clamping portion 180 contacts the screen fixing portion 172 from the indoor side in the depth direction D3.

The material of the upper connection member 102 is a melting material that melts at a predetermined temperature or higher, such as polyvinyl chloride, nylon, acrylic, elastomer, etc. For ease of manufacturing, polyvinyl chloride may be used as the material of the center portion 150, and nylon may be used as the material of the clamping portion 180. As shown in FIG. 4, when the temperature of the vicinity area 280 on the indoor side of the shoji screens 14, 15 reaches a temperature higher than a predetermined temperature, gas 310 that is higher than the predetermined temperature is supplied to the space 250, and the temperature of the upper connection member 102 increases due to heat conduction from the frame body 10, and the upper connection member 102, which is made of a melting material, melts and falls, and an opening 300 is formed in the connection member 100 in the area where the upper connection member 102 was provided.

The lower connection member 108 includes a central portion 190 and a clamping portion 220. The central portion 190 includes a lower piece portion 192 and a frame body fitting portion 194. The lower piece portion 192 extends from near the outdoor end of the frame body 10 to the outdoor side along the depth direction D3. The frame body fitting portion 194 extends slightly downward from the outdoor end of the lower piece portion 192 and then extends forward and backward in the depth direction D3. The frame body fitting portion 194 fits into a fitting portion 196 formed in the horizontal frame 68. The fitting portion 196 is formed protruding from the lower side of the horizontal frame 68 in the height direction D2 and the indoor side end 207 in the depth direction D3 to the indoor side. The fitting portion 196 contacts the frame body fitting portion 194 from below in the height direction D2 and from the indoor side and the outdoor side in the depth direction D3. The clamping portion 220 clamps the center portion 190 from above and below in the height direction D2. The lower clamping portion 220 extends further outdoors than the upper clamping portion 220, and covers the horizontal frame 68 from below in the height direction D2. The end portion 207 of the horizontal frame 68 has a screen fixing portion 232 that protrudes indoors. The peripheral portion 92 of the screen 90 is fixed to the screen fixing portion 232. The lower clamping portion 220 contacts the screen fixing portion 232 from the indoor side in the depth direction D3.

The material of the lower connection member 108 is an insoluble material that does not melt above a certain temperature, such as a metal material such as aluminum or stainless steel.

The louver grille with screen door 50 of the first embodiment described above includes at least the louver grille 60, the screen door 90, and the connection member 100. The louver grille 60 is attached to the frame body 10 in which the screen doors 14 and 15 are housed, faces the screen doors 14 and 15 in the depth direction D3, and is located outside of the screen doors 14 and 15. The louver grille 60 includes a plurality of louvers 70, each of which has a louver body 72 that can rotate in the circumferential direction around the axis of the shaft member 74, and is formed so as to be openable and closable. The screen door 90 faces the screen doors 14 and 15 in the depth direction D3, and is located between the louver grille 60 and the screen doors 14 and 15. The connection member 100 connects the peripheral portion 92 of the screen door 90 to the frame body 10 without any gaps in the depth direction D3.

In the louvered screen grille 50, under normal circumstances, the connecting member 100 seals the space 250 between the peripheral portion 92 of the screen 90 and the frame body 10 in the depth direction D3. Under normal circumstances, it is meant that there is no fire or the like occurring indoors, and no hot gas or other fluids that could cause spontaneous combustion or flames are being supplied from indoors to the louvered screen grille 50. With the louvered screen grille 50, it is possible to adjust the ventilation between the outdoors and indoors, and the amount of light coming in from outdoors, by switching the multiple louvers 70 of the louvered screen grille 60 between the closed and open states, and adjusting the angle of the louver body 72 in the open state. According to the louvered grille with screen 50, a screen 90 and a connecting member 100 are provided between the louvered grille 60 and the frame 10, so even if dust, insects, etc. enter from outside when the louvers 70 are open, they are blocked in the depth direction D3 by the screen 90 and in the width direction D1 and height direction D2 by the connecting member 100. In other words, the louvered grille with screen 50 allows ventilation between the outdoors and indoors under normal conditions, and can prevent dust, insects, etc. from entering the indoors.

In the case of a fire or other emergency, when the indoor side neighborhood 280 of the shoji screens 14, 15 reaches a temperature higher than a predetermined temperature, an opening 300 is formed in the upper connection member 102 of the connection member 100, which is disposed in a position facing the upper frame 11 of the frame body 10 in the depth direction D3, as shown in FIG. 4. When the indoor side neighborhood 280 reaches a temperature higher than a predetermined temperature, the building fixtures, especially the frame body 10, catch fire, and the high-temperature gas 310 generated by the fire spreads and begins to accumulate in the space 250 because it is blocked by the screen 90. However, in the case of the louvered screen 50, the opening 300 is formed, and the high-temperature gas 310 generated on the indoor side in an emergency can be discharged from the opening 300 to the outdoors without opening and closing the louvered screen 60 as in the conventional device, or without damage to the opening and closing device 80. This makes it possible to prevent spontaneous combustion of the high-temperature gas 310 or the outbreak of flames from the frame body 10. In the first embodiment, the outdoor surface 10a of the frame 10 is substantially overlapped with the outdoor surface 2a of the wall 2 in the depth direction D3, and there are almost no objects above the opening 300 that impede the air flow. Therefore, the high-temperature gas 310 discharged from the opening 300 is immediately diffused into the outdoor air, and does not cause damage to the building. The upper connection member 102 can be manufactured in a simple flat plate shape so that it is substantially parallel to the depth direction D3.

In the first embodiment of the louvered screen grille 50, the upper connection member 102 of the connection member 100 is formed of a melting material that melts at a predetermined temperature or higher. As a result, as shown in FIG. 4, when high-temperature gas 310 that has begun to accumulate in the space 250 during a fire or the like rises and hits the upper connection member 102 from below, the upper connection member 102, which has been heated to a predetermined temperature or higher, naturally melts and falls, forming an opening 300. According to the first embodiment of the louvered screen grille 50, the upper connection member 102 is melted by the high-temperature gas 310, naturally forming the opening 300, and the high-temperature gas 310 can be efficiently discharged from the opening 300 to the outdoors.

In the first embodiment, the upper connection member 102 of the connection member 100 may be made of a melting material. As a modified example of the first embodiment of the louvered screen grille 50, for example, the louvered screen grille 51 shown in FIG. 5 can be given. As shown in FIG. 5, in the louvered screen grille 51, the upper connection member 102 is composed of a central portion 151. The central portion 151 includes an upper piece portion 152 and a frame body connecting portion 155. As with the central portion 150, the upper piece portion 152 extends from near the outdoor end of the frame body 10 to the outdoor side along the depth direction D3, and contacts the screen fixing portion 172 of the horizontal frame 67 from above in the height direction D2. The frame body connecting portion 155 contacts the end portion 167 of the horizontal frame 67 from above in the height direction D2, and is fixed to the horizontal frame 67 by a screw 158.

The material of the center 151 of the upper connection member 102 is a molten material that melts at a predetermined temperature or higher, such as polyvinyl chloride, nylon, acrylic, elastomer, etc. Although not shown, when the temperature of the indoor side adjacent area 280 of the screens 14, 15 reaches a temperature higher than the predetermined temperature, gas hotter than the predetermined temperature is supplied to the space 250 and rises, causing the center 151 made of the molten material to melt and fall, forming an opening 300 in the area of the connection member 100 where the upper connection member 102 was provided.

The louvered grille with screen 51 of the modified first embodiment, like the louvered grille with screen 50 of the first embodiment, comprises the above-mentioned louvered grille 60, the screen 90, and the connecting member 100. The louvered grille with screen 51 allows ventilation between the outdoors and indoors, prevents dust, insects, etc. from entering the indoors, and allows high-temperature gases generated on the indoor side in an emergency to be exhausted to the outdoors through the opening 300.

According to the louvered grille with screen 51, which is a modified example of the first embodiment, as with the louvered grille with screen 50 of the first embodiment, the upper connecting member 102 of the connecting member 100 is formed from a molten material, so that the upper connecting member 102 is melted by the high-temperature gas 310 to naturally form the opening 300, and the high-temperature gas 310 can be efficiently exhausted from the opening 300 to the outdoors.

In the first embodiment of the screen-equipped louvered grille 50, the side connection members 104, 106 are fixed to the frame body 10 and the frame body 62 via the brackets 110, 130 as described above, but the side connection members 104, 106 may also be fixed directly to the frame body 10 or the frame body 62.

Second Embodiment
Next, a second embodiment of the louvered screen grille (fitting) 52 according to the present disclosure will be described. In the following embodiments, components common to the louvered screen grille 50 of the first embodiment are given the same reference numerals as the corresponding components of the louvered screen grille 50, and detailed descriptions of those components will be omitted. In the following embodiments, the configurations different from the louvered screen grille 50 of the first embodiment will be mainly described.

6 and 7, in the second embodiment, the outdoor surface 2a of the wall 2 protrudes outdoors further than the outdoor surface 10a of the frame 10 in the depth direction D3, and substantially overlaps with the surface 62a of the frame 62 of the louvered surface grille 60. In other words, the frame 10 is disposed on the indoor side of the opening 5 formed to have a predetermined depth in the depth direction D3. On the outer side of the frame 10 in the width direction D1 and the outer side of the height direction D2, there is provided the wall 2 which protrudes outdoors further than the frame 10 by a dimension substantially equal to that of the louvered surface grille 52 with a screen.

As shown in FIG. 6, in the second embodiment, the frame 62 of the louvered grille 60 and the portion of the wall 2 that is closer to the outdoors than the frame 10 overlap each other in the depth direction D3. In the height direction D2, a gap is provided between the upper horizontal frame 67 of the frame 62 and the wall 2 above it. A space 260 is formed between the top surface 67c of the horizontal frame 67 and the bottom surface 2d of the wall 2 above the horizontal frame 67.

In the second embodiment of the screen-equipped louvered grille 52, the upper connection member 102 of the connection member 100 includes an inner layer 153 and an outer layer 240. The inner layer 153 includes an upper piece 157 and a frame fitting portion 154. The upper piece 157 extends from near the outdoor end of the frame 10 between the upper surface 67c of the horizontal frame 67 and the bottom surface 2d of the wall portion 2 in the height direction D2 along the depth direction D3 to the outdoor side, then bends downward and connects to the end 167 of the horizontal frame 67. The frame fitting portion 154 is fitted into the fitting portion 156. The outer layer 240 covers the inner layer 153 from above in the height direction D2 and from the outdoor side in the depth direction D3. That is, the outer layer 240 extends from near the outdoor end of the frame 10 directly above the upper piece 157 toward the outdoor side along the depth direction D3, then bends downward, contacts the end 167, and extends to the outdoor side in the depth direction D3 to cover the upper surface 67c of the horizontal frame 67.

The material of the upper connection member 102 is a melting material that melts at a predetermined temperature or higher, such as polyvinyl chloride, nylon, acrylic, elastomer, etc. For ease of manufacture, polyvinyl chloride may be used as the material of the inner layer 153, and nylon may be used as the material of the outer layer 240. Although not shown, when the temperature of the indoor side adjacent area 280 of the shoji screens 14, 15 reaches a temperature higher than a predetermined temperature, gas higher than the predetermined temperature is supplied to the space 250 and rises, causing the inner layer 153 and outer layer 240 made of the melting material to melt and fall, forming an opening 302 in the area of the connection member 100 where the upper connection member 102 was provided.

The louvered grille with screen 52 of the second embodiment described above comprises a louvered grille 60, a screen 90, and a connecting member 100, similar to the louvered grille with screen 50 of the first embodiment. The louvered grille with screen 52 allows ventilation between the outdoors and indoors, prevents dust, insects, etc. from entering the indoors, and allows high-temperature gases generated on the indoor side in an emergency to be exhausted to the outdoors through the opening 302.

According to the louvered grille with screen 52 of the second embodiment, as in the louvered grille with screen 50 of the first embodiment, the upper connecting member 102 of the connecting member 100 is formed of a molten material, so that the upper connecting member 102 is melted by the high-temperature gas 310 generated from the frame body 10 in an emergency, etc., to naturally form an opening 302, and the high-temperature gas 310 can be efficiently discharged from the opening 302 to the outdoors. In the second embodiment, as shown in FIG. 6, the outdoor surface 10a of the frame body 10 is located on the indoor side of the outdoor surface 2a of the wall part 2 in the depth direction D3, and the bottom surface 2d of the wall part 2 is located above the opening 302. However, by forming the opening 302, the space 250 and the space 260 are connected to form an escape route for the fluid. Therefore, the high-temperature gas 310 discharged from the opening 302 passes through the space 260 as shown by the dashed line in FIG. 6 to the outdoor side in the depth direction D3, and is diffused into the outdoor air, without causing damage to the building.

Third Embodiment
Next, a third embodiment of the screen-equipped louvered grille (fitting) 53 according to the present disclosure will be described.

As shown in FIG. 8, in the third embodiment of the louvered screen grille 53, the connecting member 100 does not include the brackets 110, 130 described in the first embodiment, and is formed integrally with the louvered screen grille 60. In the third embodiment, the upper connecting member 102 of the connecting member 100 includes a core portion 271 and a covering portion 281.

The core 271 includes a frame insert 261 and an upper piece 262. The frame insert 261 extends along the height direction D2, is disposed between the upper frame 11 and the shoji 15 in the depth direction D3, and is attached to the upper frame 11 from the indoor side. The upper piece 262 extends from the lower end of the frame insert 261 to the outdoor side along the depth direction D3. The outdoor end of the upper piece 262 in the depth direction D3 is connected to the screen fixing part 172. The screen fixing part 172 of the third embodiment is provided below the horizontal frame 67 in the height direction D2 and protrudes further indoors from the indoor end 168 in the depth direction D3. In the depth direction D3, an opening 304 is formed in the upper piece 262 of the core 271 between the screen 90 and the outdoor surface 11a of the upper frame 11. The opening 304 is formed over almost the entire width direction D1 and depth direction D3, leaving only the peripheral edge of the upper piece 262 when viewed from the height direction D3.

The covering portion 281 covers the opening 304 from below in the height direction D2. That is, the covering portion 281 contacts the upper piece portion 262 around the opening 304 in the space 250. The covering portion 281 is adhered to the upper piece portion 262, for example, by an adhesive (not shown).

The material of the core 271 of the upper connection member 102 is an insoluble material that does not melt above a predetermined temperature, such as a metal material such as aluminum or stainless steel. On the other hand, the material of the covering portion 281 is a molten material that melts above a predetermined temperature, such as polyvinyl chloride, nylon, acrylic, or elastomer. When the nearby area 280 on the indoor side of the shoji screens 14 and 15 reaches a temperature higher than the predetermined temperature, gas that is higher than the predetermined temperature is supplied to the space 250, causing the covering portion 281, which is made of a molten material, to melt and fall, and opening 304 in the core 271 of the connection member 100 that was blocked by the covering portion 281 is opened.

In the third embodiment, the lower connection member 108 of the connection member 100 has a core 311 corresponding to the upper connection member 102. The core 311 has a frame body insertion portion 341 and a lower piece portion 342. The frame body insertion portion 341 extends along the height direction D2, is disposed in a position between the lower frame 18 and the shoji screen 15 in the depth direction D3, and is attached to the lower frame 18 from the indoor side. The lower piece portion 263 extends from the upper end of the frame body insertion portion 261 to the outdoor side along the depth direction D3. The outdoor end of the lower piece portion 263 in the depth direction D3 is connected to the screen fixing portion 232. The screen fixing portion 232 of the third embodiment is provided to protrude further indoors from the upper side of the horizontal frame 68 in the height direction D2 and the indoor end 208 in the depth direction D3.

The material of the core 331 of the lower connection member 108 is an insoluble material that does not melt above a certain temperature, such as a metal material such as aluminum or stainless steel.

As shown in Fig. 9 , a frame body fitting portion 351 is provided at the lower end in the height direction D3 of the side connection member 104 of the connection member 100. The frame body fitting portion 351 extends inward in the width direction D1 and indoors in the depth direction D3, is inserted into the lower frame 18 from the outdoor side in the depth direction D3, and is fastened to the lower frame 18 from the indoor side. Similarly, a frame body fitting portion 361 is provided at the lower end in the height direction D3 of the side connection member 106 of the connection member 100. The frame body fitting portion 361 extends inward in the width direction D1 and indoors in the depth direction D3, is inserted into the lower frame 18 from the outdoor side in the depth direction D3, and is fastened to the lower frame 18 from the indoor side.

The louvered grille with screen 53 of the third embodiment described above comprises a louvered grille 60, a screen 90, and a connecting member 100, similar to the louvered grille with screen 50 of the first embodiment. The louvered grille with screen 52 allows ventilation between the outdoors and indoors, prevents dust, insects, etc. from entering the indoors, and allows high-temperature gases generated on the indoor side in an emergency to be exhausted to the outdoors through the opening 304.

In the third embodiment of the louvered screen grille 53, the upper connection member 102 includes a core 271 and a covering 281. The core 271 is made of an infusible material that does not melt even at a predetermined temperature or higher, and an opening 304 is formed in the core 271. The covering 281 is made of a molten material that melts at a predetermined temperature or higher, and is arranged to cover the opening 304. According to the third embodiment of the louvered screen grille 53, the covering 281 that covers the opening 304 formed in advance in the core 271 of the upper connection member 102 of the connection member 100 is made of a molten material, so that the covering 281 melts and falls off due to high-temperature gas 310 generated from the frame 10 or the like in an emergency, naturally opening the opening 304, and the high-temperature gas 310 can be efficiently discharged from the opening 304 to the outdoors. In the third embodiment, as in the first embodiment, the outdoor surface 10a of the frame 10 is substantially overlapped with the outdoor surface 2a of the wall 2 in the depth direction D3, and there are almost no objects above the opening 304 that impede the flow of air. Therefore, the high-temperature gas 310 discharged from the opening 304 is immediately diffused into the outdoor air, and does not cause damage to the building. The amount of molten material used can be reduced to only the amount necessary to close the opening 304 that has been formed in advance in the core 271.

In the third embodiment, when viewed from the height direction D3, the upper piece 262 may have a plurality of openings 304 formed at intervals in at least one of the width direction D1 and the depth direction D3, leaving the peripheral edge.

The above describes preferred embodiments of the present disclosure in detail. The present disclosure is not limited to the above-described embodiments, and may be modified as appropriate within the scope of the claims.

For example, the grille provided in the fittings according to the present disclosure is not limited to the louver grille described in each of the above embodiments. The grille includes all grilles that are formed to be openable and closable so that the amount of ventilation between the outdoors and the indoors can be changed, and may be, for example, a shutter-type or sliding grille.

For example, the configuration of the connection member provided in the fitting according to the present disclosure is not limited to the configuration described in each of the above-mentioned embodiments, as long as an opening is formed in the upper connection member arranged at a position facing the upper frame of the frame body provided at the opening of the building when the temperature of the area near the indoor side of the shoji screen reaches a temperature higher than a predetermined temperature. As an example, the upper connection member may be formed of an infusible material, and an openable and closable door may be formed on the upper connection member. Under normal circumstances, the door may be held in a closed state from the inside of the connection member by a support member formed of a molten material. In such a configuration, gas with a temperature higher than a predetermined temperature is supplied to the space inside the connection member, and the support member formed of the molten material melts and falls, opening the door and opening the opening. Therefore, the high-temperature gas can be discharged from the opening and diffused into the outdoor air.

For example, the connection structure and connection method between the connection member and the frame and grille installed at the opening of the building are not limited to the configurations described in the above embodiments, so long as the peripheral portion of the screen door and the frame installed at the opening of the building are connected without any gaps under normal circumstances. The connection structure and connection method between the connection member and the frame and grille may be changed as appropriate depending on the arrangement of the openings in at least the upper connection member of the connection member and the mechanism for forming the openings.

For example, in the fittings according to the present disclosure, not only the upper connecting member but also at least one of the side connecting member arranged at a position facing the horizontal frame of the frame body provided at the opening of the wall and the lower connecting member arranged at a position facing the lower frame of the frame body may be formed from a molten material, and an opening may be formed in at least one of the side connecting member and the lower connecting member. When the lower connecting member is formed from a molten material and an opening is formed in the lower connecting member by high-temperature gas during a fire, etc., air that is lower in temperature than the high-temperature gas from the outdoors is naturally supplied from the opening to the space inside the connecting member from below the location where the lower connecting member was provided, that is, in the height direction D2. As a result, the high-temperature gas generated on the indoor side during a fire, etc., can be pushed out by the low-temperature gas and discharged to the outdoors without opening or closing the grille, and the temperature of the space inside the connecting member can be reduced in a short time compared to when no opening is formed in the lower connecting member. The configuration in which the lower connecting member is formed from a molten material and an opening is formed in the lower connecting member by high-temperature gas during a fire, etc., enhances the fire resistance of the fittings.

For example, when the size of the frame body in the height direction is relatively small compared to the size in the width direction, or when the size of the connection member in the depth direction is relatively small, the passage area through which high-temperature gas is discharged to the outdoors can be increased by forming an opening in the side connection member or the lower connection member. When openings are formed in the side connection member or the lower connection member, it is considered that the connection strength between the grille and the screen door and the frame body will decrease due to the parts formed with the molten material melting and falling off in an emergency. Therefore, it is preferable that the connection between the outer periphery of the screen door and the grille and the frame body installed at the opening of the building is reinforced in the direction along the outer periphery of the connection member using multiple brackets formed with an insoluble material.

For example, the shoji screens housed in a frame installed in an opening in a building are not limited to the two shoji screens that make up the so-called sliding shoji screens described in each of the above embodiments, but may be one shoji screen or three or more shoji screens.

10...frame, 14, 15...paper screen, 50, 51, 52, 53...louvered grille with screen (fitting), 60...louvered grille (grating), 100...connecting member, 102...upper connecting member, 271...core, 281...covering portion, 300, 302, 304...opening

Claims (5)

The frame in which the shoji screen is placed,
A grille that faces the shoji screen and is disposed on the outdoor side of the shoji screen and is formed to be openable and closable;
A screen door is disposed between the lattice and the shoji screen, facing the shoji screen;
A connecting member that connects the peripheral portion of the screen door to the frame body without any gaps and connects the peripheral portion to the grille;
Equipped with
The connecting member is
An upper connecting member;
A side connection member;
A lower connection member;
having
When the temperature of the area near the indoor side of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in any one of the upper connection member, the side connection member, and the lower connection member at a position facing the frame body.
Building materials. Any one of the members is formed of a melting material that melts at a temperature equal to or higher than the predetermined temperature.
The fixture according to claim 1. Any of the above members may be
a core portion formed of an infusible material that does not melt even at a temperature equal to or higher than the predetermined temperature, the core portion having the opening formed therein;
a covering portion formed of a melting material that melts at or above the predetermined temperature and disposed so as to cover the opening;
Equipped with
The fixture according to claim 1. The frame in which the shoji screen is placed,
A grille that faces the shoji screen and is disposed on the outdoor side of the shoji screen and is formed to be openable and closable;
A screen door is disposed between the lattice and the shoji screen, facing the shoji screen;
A connecting member that connects the peripheral portion of the screen door to the frame body without any gaps and connects the peripheral portion to the grille;
Equipped with
When the temperature of the indoor area of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in the upper connecting member of the connecting members that is disposed at a position facing the upper frame of the frame body.
Building materials. A grille is attached to a frame in which a shoji screen is housed, and is disposed facing the shoji screen and on the outdoor side of the shoji screen, and is formed to be openable and closable;
A screen door is disposed between the lattice and the shoji screen, facing the shoji screen;
A connecting member that connects the peripheral portion of the screen door and the frame body without any gaps;
Equipped with
When the temperature of the indoor side of the vicinity of the shoji screen reaches a temperature higher than a predetermined temperature, an opening is formed in the upper connection member arranged at a position facing the upper frame of the frame body among the connection members,
The upper connection member is formed of a melting material that melts at a temperature equal to or higher than the predetermined temperature.
Building materials.

Images