JP7714386B2 - Door and window connection structure - Google Patents

Description

This disclosure relates to a fitting connection structure.

Conventionally, when fixtures are installed side by side in the left-right direction in an opening in a building, mounting members are provided between the left and right fixtures to secure each of them (see, for example, Patent Document 1). The mounting members are steel members that extend the entire vertical length of the opening, with their upper and lower ends fixed to the building's framework. Multiple piece-shaped anchor members are fixed at intervals in the vertical direction to the vertical frames of each of the left and right fixtures. By fixing the anchor members to the mounting members, the fixtures are fixed to the mounting members via the anchor members, connecting the fixtures to each other. To increase the strength of the connections between the fixtures, it is common to increase the projected dimensions (dimensions in the indoor/outdoor directions) of the mounting members toward the interior, thereby increasing the strength of the mounting members.

Japanese Patent Application Laid-Open No. 2020-176440

However, if the projected dimensions of the mounting components and cover components that cover the interior side of the mounting components are too large, there is a risk that they may interfere with parts such as opening and closing handles attached to the fixture. There is a risk that the mounting components and cover components that cover the interior side of the mounting components may protrude into the interior, reducing the design aesthetic.

The purpose of this disclosure is to provide a fitting connection structure that can increase the strength of the connections between fittings without interfering with other components or compromising design.

In order to achieve the above-mentioned object, the door and window connecting structure of the present disclosure comprises a pair of door and window frames arranged adjacent to each other in the left-right direction in an opening provided in a wall portion, mounting members arranged between the vertical frames adjacent to each other in the left-right direction of the pair of door and extending in the up-down direction, and fixing members extending in the up-down direction and fixed to the vertical frames and fixed to the mounting members, wherein the fixing members comprise a first fixing member extending in the up-down direction and fixed to the mounting members, and a second fixing member extending in the up-down direction and fixed to the first fixing member , and the second fixing member is arranged inside in the left-right direction from the outer left-right surface of the vertical frames .

This is a horizontal cross-sectional view showing the fitting connection structure, taken along line AA in Figure 2. This is a vertical cross-sectional view showing the fitting connection structure, taken along line B-B in Figure 1. FIG. 10 is a horizontal cross-sectional view showing the fitting connection structure. FIG. 4 is a perspective view showing a first fixing member and a second fixing member in a temporarily fastened state. FIG. 4 is a cross-sectional view showing a first fixing member and a second fixing member in a temporarily fastened state. FIG. 2 is a perspective view showing a first fixing member and a second fixing member fixed to a vertical frame. 10 is a cross-sectional view showing a first fixing member and a second fixing member fixed to a vertical frame. FIG. FIG. 2 is a perspective view showing a first fixing member and a second fixing member fixed to a vertical frame. 10 is a cross-sectional view showing a first fixing member and a second fixing member fixed to a vertical frame. FIG.

As shown in Figure 1, the door and window connection structure 1 of this embodiment has two doors and windows 2, 2 arranged side by side in the left-right direction in an opening 12 in a wall 11 that separates the interior and exterior of a room, and a connecting part 3 that connects the two doors and windows 2, 2. Hereinafter, the horizontal direction perpendicular to the wall 11 (the direction of arrow Y in the figure) will be referred to as the indoor-outdoor direction, and the horizontal direction along the wall 11 (the direction of arrow X in the figure) will be referred to as the left-right direction. A vertical plane along the left-right direction (a plane facing the indoor-outdoor direction) will sometimes be referred to as a facing plane, and a vertical plane along the indoor-outdoor direction (a plane facing the left-right direction) will sometimes be referred to as a visible plane. In the figure, the up-down direction is indicated by arrow Z, the outdoors is indicated by symbol 13, and the indoors is indicated by symbol 14.

The connecting portion 3 includes a mounting member 4, a fixing member 5, a connecting member 6, and a cover member 7. The mounting member 4 is a rectangular cylindrical member. The mounting member 4 is made of, for example, steel or aluminum. As shown in FIG. 2 , the mounting member 4 is arranged so that it extends vertically with a length approximately equal to the height dimension of the opening 12. The upper end 4a of the mounting member 4 is fixed to the upper edge of the opening 12 via a fixing bracket 49, and the lower end 4b is fixed to the lower edge of the opening 12 via a fixing bracket 49. In other words, the mounting member 4 is fixed to the structure above the opening 12 (e.g., beams or ceiling material) and the structure below the opening 12 (e.g., beams or floor material).

As shown in Figure 3, the flat plate-shaped portions that form the rectangular tube of the mounting member 4 are referred to as the mounting chamber outer plate portion 41, the mounting chamber inner plate portion 42, the first mounting side plate portion 43, and the second mounting side plate portion 44. The mounting chamber outer plate portion 41 is flat and located on the exterior side of the room with its plate surface facing outward. The mounting chamber inner plate portion 42 is flat and located on the interior side of the room with its plate surface facing outward. The first mounting side plate portion 43 is flat and located on one side in the left-right direction with its plate surface facing outward. The second mounting side plate portion 44 is flat and located on the other side in the left-right direction with its plate surface facing outward.

The fittings 2 are placed on both the left and right sides of the mounting member 4, and each of these fittings 2, 2 is fixed to the mounting member 4 via a fixing member 5. The fixing member 5, connecting member 6, and cover member 7 of the connecting portion 3 will be described later.

As shown in Figure 3, the two fittings 2, 2 each have a frame 21 and a shoji screen. The frame 21 is a rectangular frame, with the shoji screen positioned inside the left and right vertical frames, upper frame, and lower frame. In the following description of the vertical frames 211, 212, the side on which the shoji screen is positioned in the left-right direction may be referred to as the inside or inner periphery, and the opposite side as the outside or outer periphery. The two fittings 2, 2 are each fire-rated sashes. The fitting 2 positioned on one side of the two fittings 2, 2 in the left-right direction (the right side in Figure 1) will be referred to as the first fitting 2A, and the fitting 2 positioned on the other side in the left-right direction (the left side in Figure 1) will be referred to as the second fitting 2B. In this embodiment, the first fitting 2A is a sliding window, and the second fitting 2B is a fixed window.

The vertical frame 211 (referred to as the first vertical frame 211) on the other left-right side of the first fitting 2A and the vertical frame 212 (referred to as the second vertical frame 212) on one left-right side of the second fitting 2B are adjacent to each other in the left-right direction. In the fitting connection structure 1, the first vertical frame 211 and the second vertical frame 212 are connected by a connecting part 3. The first vertical frame 211 and the second vertical frame 212 are each shaped members with approximately the same cross-sectional shape throughout the entire vertical direction. The first vertical frame 211 and the second vertical frame 212 each have a fixing part 24 connected to the shoji support part 23 and fixed to the mounting member 4, and a shoji support part 23 that supports the shoji. The shoji support part 23 of the first vertical frame 211 supports the shoji of the sliding window. The shoji of the sliding window is positioned on one left-right side of the shoji support part 23 of the first vertical frame 211. The shoji support portion 23 of the second vertical frame 212 supports the shoji of the fixed window. The shoji of the fixed window is positioned on the other left-right side of the shoji support portion 23 of the second vertical frame 212.

The fixing portion 24 of the first vertical frame 211 and the fixing portion 24 of the second vertical frame 212 are symmetrical in shape. The shoji support portion 23 of the first vertical frame 211 and the shoji support portion 23 of the second vertical frame 212 have different shapes. Below, we will explain the fixing portion 24 of the first vertical frame 211, the shoji support portion 23 of the first vertical frame 211, and the shoji support portion 23 of the second vertical frame 212, and will omit explanation of the fixing portion 24 of the second vertical frame 212. In the drawings, each part of the fixing portion 24 of the second vertical frame 212 will be marked with the same reference numeral as the corresponding part of the fixing portion 24 of the first vertical frame 211.

The fixing portion 24 has a vertical frame outer panel portion 241, a vertical frame inner panel portion 242, a vertical frame intermediate panel portion 243, a vertical frame inner panel portion 244, a vertical frame outer panel portion 245, a first vertical frame fixing piece 246, a second vertical frame fixing piece 247, a first protruding piece 248, and a second protruding piece 249.

The vertical frame exterior panel 241, the vertical frame interior panel 242, and the vertical frame intermediate panel 243 are each formed as flat plates and are arranged with the panel surface facing in the direction of the front. The vertical frame exterior panel 241, the vertical frame interior panel 242, and the vertical frame intermediate panel 243 are arranged with a gap between them from the outside to the inside of the room in the following order: vertical frame exterior panel 241, vertical frame intermediate panel 243, vertical frame interior panel 242. The vertical frame exterior panel 241 and the vertical frame intermediate panel 243 have the same left-to-right dimensions. The vertical frame interior panel 242 has a smaller left-to-right dimension than the vertical frame exterior panel 241 and the vertical frame intermediate panel 243. The vertical frame exterior panel 241, the vertical frame interior panel 242, and the vertical frame intermediate panel 243 are arranged with one left-to-right side, i.e., the end on the shoji side of the first fitting 2A, facing the interior/exterior direction.

The vertical frame inner plate portion 244 and the vertical frame outer plate portion 245 are each formed in a flat plate shape and are arranged so that the plate surface is the visible surface. The vertical frame inner plate portion 244 is arranged on one side of the vertical frame outer plate portion 241, the vertical frame inner plate portion 242, and the vertical frame intermediate plate portion 243 in the left-right direction. The vertical frame outer plate portion 245 is arranged on the other side of the vertical frame outer plate portion 241 and the vertical frame intermediate plate portion 243 in the left-right direction. The other left-right side surface 245a of the vertical frame outer plate portion 245 is the other left-right end of the first vertical frame 211, i.e., the outer peripheral surface (outer peripheral surface) of the first vertical frame 211 located at the outer left-right end of the first vertical frame 211.

The outdoor end of the vertical frame inner plate portion 244 is connected to one of the left-right end portions of the vertical frame outer plate portion 241. The indoor end of the vertical frame inner plate portion 244 is connected to one of the left-right end portions of the vertical frame inner plate portion 242. One of the left-right end portions of the vertical frame intermediate plate portion 243 is connected to the indoor-outdoor middle portion of the vertical frame inner plate portion 244. The outdoor end of the vertical frame outer plate portion 245 is connected to the other left-right end portion of the vertical frame outer plate portion 245. The indoor end of the vertical frame outer plate portion 245 is connected to the other left-right end portion of the vertical frame intermediate plate portion 243.

The first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 are each formed in a flat plate shape and are arranged with the plate surface facing outward. The first vertical frame fixing piece 246 protrudes toward the interior of the room from a position slightly offset to one side of the other left-right end of the vertical frame intermediate plate portion 243. The second vertical frame fixing piece 247 protrudes toward the exterior of the room from one left-right end of the indoor side plate portion. The first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 are arranged with a gap between them in the indoor and outdoor directions. A groove portion 263 is provided in the fixing portion 24 between the indoor end of the first vertical frame fixing piece 246 and the outdoor end of the second vertical frame fixing piece 247.

The fixing portion 24 has a first hollow portion 261 surrounded by the vertical frame outer panel portion 241, the vertical frame intermediate panel portion 243, the portion of the vertical frame inner panel portion 244 facing outside the room relative to the vertical frame intermediate panel portion 243, and the vertical frame outer panel portion 245; and a second hollow portion 262 surrounded by the vertical frame intermediate panel portion 243, the vertical frame inner panel portion 242, the portion of the vertical frame inner panel portion 244 facing inside the room relative to the vertical frame intermediate panel portion 243, the first vertical frame fixing piece 246, and the second vertical frame fixing piece 247.

The first protruding piece 248 protrudes toward the outside of the room from a position between the vertical frame inner plate portion 244 and the vertical frame outer plate portion 245, at the left-right middle of the vertical frame intermediate plate portion 243. The second protruding piece 249 protrudes to the other side in the left-right direction from the corner between the vertical frame outer plate portion 245 and the vertical frame intermediate plate portion 243. The second protruding piece 249 is located closer to the inside of the room than the vertical frame intermediate plate portion 243.

The shoji support portion 23 of the first vertical frame 211 has an exterior shoji support plate portion 233, an interior shoji support plate portion 234, an interior shoji support plate portion 235, and a shoji support protrusion 236. The exterior shoji support plate portion 233 protrudes to one side in the left-right direction, i.e., toward the shoji side, from a position slightly inside the room from the exterior end of the vertical frame inner plate portion 244. The interior shoji support plate portion 234 protrudes to one side in the left-right direction from a position outside the room from the vertical frame intermediate plate portion 243 of the vertical frame inner plate portion 244. The interior shoji support plate portion 235 connects one left-right end of the exterior shoji support plate portion 233 to one left-right end of the interior shoji support plate portion 234. The shoji support protrusion 236 protrudes to one side in the left-right direction from a position on the interior side of the vertical frame inner plate 244, further inside the room than the vertical frame intermediate plate 243.

The shoji support portion 23 of the second vertical frame 212 has a shoji support plate portion 231 and a ledge attachment portion 232. The shoji support plate portion 231 protrudes to the other left-right direction from a position slightly inside the room from the outside end of the vertical frame inner plate portion 244. The ledge attachment portion 232 is located on the vertical frame inner plate portion 244 at a portion outside the room from the vertical frame intermediate plate portion 243. The shoji ledge 25 is attached to the ledge attachment portion 232.

The first vertical frame 211 and the second vertical frame 212 have their vertical frame outer panel portions 245 facing each other in the left-right direction, their first vertical frame fixing pieces 246 facing each other in the left-right direction, and their second vertical frame fixing pieces 247 facing each other in the left-right direction. The other left-right side surface 245a of the vertical frame outer panel portion 245 of the first vertical frame 211 faces the left-right side surface 245a of one left-right side of the vertical frame outer panel portion 245 of the second vertical frame 212. In other words, the outer peripheral surfaces of the first vertical frame 211 and the second vertical frame 212 face each other in the left-right direction. The first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 of the first vertical frame 211 face each other in the left-right direction and the second vertical frame fixing piece 247 of the second vertical frame 212 via the mounting member 4. An airtight material 26 is filled between the outer vertical frame plate portion 245 of the first vertical frame 211 and the outer vertical frame plate portion 245 of the second vertical frame 212.

The fixing members 5 are fixed to the fixing portions 24 of the first vertical frame 211 and the second vertical frame 212, respectively, and then fixed to the mounting member 4. The fixing members 5 are made of, for example, steel or aluminum. The fixing members 5 fixed to the fixing portions 24 of the first vertical frame 211 and the fixing members 5 fixed to the fixing portions 24 of the second vertical frame 212 have the same shape and are fixed to the fixing portions 24 of the first vertical frame 211 and the fixing portions 24 of the second vertical frame 212 in symmetrical orientations in the left-right direction. The fixing members 5 fixed to the fixing portions 24 of the first vertical frame 211 will be described in detail below, and the fixing members 5 fixed to the fixing portions 24 of the second vertical frame 212 will be omitted.

The fixing member 5 has a first fixing member 51 and a second fixing member 52. The first fixing member 51 is fixed to the mounting member 4. The second fixing member 52 is fixed to the first fixing member 51. In this embodiment, the fixing member 5 is fixed such that the first fixing member 51 and the second fixing member 52 sandwich the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247, and the first fixing member 51 is fixed to the mounting member 4.

The first fixing member 51 is a long member with an L-shaped cross section that is arranged to extend vertically. The first fixing member 51 is approximately the same length as the first vertical frame 211. When fixed to the first vertical frame 211, the upper end 51a is located at a height near the upper end of the first vertical frame 211, and the lower end 51b is located at a height near the lower end of the first vertical frame 211. The first fixing member 51 is a continuous member that extends across almost the entire height of the first vertical frame 211. The first fixing member 51 has a first fixing piece 511 and a second fixing piece 512. The first fixing piece 511 is flat and is one piece of the L-shaped cross section of the first fixing member 51. The first fixing piece 511 is arranged so that the plate surface is the visible surface. The second fixing piece 512 is flat and is the other piece of the L-shaped cross section of the first fixing member 51. The second fixed piece 512 is oriented so that its plate surface serves as the finding surface. When the first fixed member 51 is oriented in this way, the second fixed piece 512 protrudes to the other left or right side from the outdoor edge of the first fixed piece 511.

The second fixing member 52 is a long member with an L-shaped cross section that is arranged to extend vertically. The second fixing member 52 is approximately the same length as the first vertical frame 211. When fixed to the first vertical frame 211, the upper end 52a is located at a height near the upper end of the first vertical frame 211, and the lower end 52b is located at a height near the lower end of the first vertical frame 211. The first fixing member 51 is a continuous member that extends almost the entire height of the first vertical frame 211. The second fixing member 52 has a third fixing piece 521 and a fourth fixing piece 522. The third fixing piece 521 is flat and is one piece of the L-shaped cross section of the second fixing member 52. The fourth fixing piece 522 is arranged so that its plate surface is the visible surface. The fourth fixing piece 522 is flat and is the other piece of the L-shaped cross section of the second fixing member 52. The fourth fixed piece 522 is oriented so that its plate surface serves as the finding surface. When the second fixed member 52 is oriented in this way, the fourth fixed piece 522 protrudes to one side in the left-right direction from the outdoor edge of the second fixed piece 512.

The first fixing member 51 is arranged on the other left-right side of the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 of the first vertical frame 211. The first fixing piece 511 is arranged along the other left-right surface of the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247. The corner between the first fixing piece 511 and the second fixing piece 512 is arranged along the corner between the first vertical frame fixing piece 246 and the vertical frame intermediate plate portion 243. One left-right side portion of the second fixing piece 512 (the portion near the corner with the first fixing piece 511) faces the interior-facing surface of the vertical frame intermediate plate portion 243 and the interior-facing surface of the second protruding piece 249. The other left-right side portion of the second fixing piece 512 protrudes to the other left-right side beyond the second protruding piece 249. The exterior end face of the first fixed piece 511 is adjacent in the left-right direction to the interior face of the interior vertical frame panel portion 242 of the first vertical frame 211.

The second fixing member 52 is positioned within the second hollow portion of the first vertical frame 211. The second fixing member 52 is positioned on one side of the other left-right surface 245a of the vertical frame outer panel portion 245. In other words, the second fixing member 52 is positioned on the inner side of the outer peripheral surface of the first vertical frame 211. The third fixing piece 521 of the second fixing member 52 is positioned along one side of the left-right surface of the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247. The fourth fixing piece 522 is positioned along the interior-facing surface of the vertical frame intermediate panel portion 243. The fourth fixing piece 522 is positioned between the first vertical frame fixing piece 246 and the first protruding piece 248. The corner between the third fixing piece 521 and the fourth fixing piece 522 is positioned along the corner between the vertical frame intermediate panel portion 243 and the first vertical frame fixing piece 246. The outdoor end face of the third fixed piece 521 faces the outdoor surface of the indoor vertical frame panel portion 242 of the first vertical frame 211 with a gap between them.

When the fixing member 5 is positioned relative to the first vertical frame 211 as described above, the first fixing piece 511 and the third fixing piece 521 sandwich the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247. In this state, the first fixing piece 511 and the third fixing piece 521 are fixed from the first fixing piece 511 side with a screw 81. The first fixing piece 511 and the third fixing piece 521 are fixed with the screw 81 at a position where they overlap the groove portion 263 between the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247. In other words, the screw 81 does not pass through the first vertical frame fixing piece 246 or the second vertical frame fixing piece 247. When the screw 81 is tightened, the first fixing piece 511 and the third fixing piece 521 sandwich the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247, respectively, thereby fixing the fixing member 5 to the first vertical frame 211.

The fixing member 5 is fixed to the first vertical frame 211 as follows. As shown in Figures 4 and 5, the first fixing member 51 and the second fixing member 52 are stacked so that the first fixing piece 511 and the third fixing piece 521 face each other, and temporarily fastened with a screw 81. A gap is left between the first fixing piece 511 and the third fixing piece 521. As shown in Figures 6 and 7, the second fixing member 52 of the first fixing member 51 and the second fixing member 52, which are temporarily fastened with the screw 81, is inserted from above into the second hollow portion 262 of the first vertical frame 211, so that the first fixing piece 511 and the third fixing piece 521 sandwich the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247. The screw 81 is moved along the groove portion 263 of the first vertical frame 211. Once the fixing member 5 is in the specified position, tighten the screw 81 to firmly sandwich the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 between the first fixing piece 511 and the third fixing piece 521. In this way, the fixing member 5 is fixed to the first vertical frame 211.

The vertical frame to which the fixing member 5 is fixed is arranged so that the first fixing piece 511 runs along one of the left-right surfaces of the first side panel portion of the mounting member 4, and the second fixing piece 512 runs along the outside surface of the mounting room exterior panel portion of the mounting member 4. The indoor end surface of the first fixing piece 511 is adjacent to the outdoor surface of the mounting member 4 in the left-right direction. As a result, the indoor surface of the vertical frame indoor panel portion 242 of the vertical frame adjacent to the indoor end surface of the first fixing piece 511 is also aligned flush with the indoor surface of the mounting member 4. The other left-right end of the second fixing piece 512 overlaps approximately in the left-right center of the outdoor surface of the mounting room exterior panel portion 41.

The first vertical frame 211 and fixing member 5 are positioned relative to the mounting member 4 as described above, and the second fixing piece 512 of the first fixing member 51 is fixed to the mounting chamber outer panel portion 41 of the mounting member 4 from the outside of the room with a screw 82. In this way, the first vertical frame 211 is fixed to the mounting member 4 via the fixing member 5. The second vertical frame 212 is also fixed to the mounting member 4 in the same manner as the first vertical frame 211. When the first vertical frame 211 and the second vertical frame 212 are fixed to the mounting member 4 via the fixing member 5, the room-side surfaces of the vertical frame interior panel portions 242 of each of the first vertical frame 211 and the second vertical frame 212, the room-side end faces of the first fixing piece 511 of the fixing member 5 fixed to each of the first vertical frame 211 and the second vertical frame 212, and the room-side surface of the mounting member 4 are aligned flush with each other. As shown in FIG. 2, the upper end 51a of the first fixing member 51 and the upper end 52a of the second fixing member 52 are positioned near the upper end 4a of the mounting member 4. The lower end 51b of the first fixing member 51 and the lower end 52b of the second fixing member 52 are positioned near the lower end 4b of the mounting member 4.

As shown in FIG. 3 , the connecting member 6 is arranged along the interior surface of the vertical frame interior panel portion 242 of each of the first and second vertical frames 211 and 212, the interior end surface of the first fixing piece 511 of the fixing member 5 fixed to each of the first and second vertical frames 211 and 212, and the interior surface of the mounting member 4. The connecting member 6 is fixed to the vertical frame interior panel portion 242 of each of the first and second vertical frames 211 and 212 with screws 83. The connecting member 6 is a C-shaped member that is arranged extending in the vertical direction. The connecting member 6 is made of, for example, steel or aluminum. The connecting member 6 has a connecting plate portion 61 whose plate surface serves as the facing surface, and a pair of cover mounting protrusions 62, 62 that protrude into the interior from each of the left and right ends of the connecting plate portion 61.

The connecting plate 61 is positioned to overlap the vertical frame indoor panel 242, the indoor-side end face of the first fixing piece 511, and the indoor-side face of the mounting member 4. The connecting plate 61 is fixed to the first vertical frame 211 and the second vertical frame 212 with screws 83 at a position where it overlaps with the vertical frame indoor panel 242 of the first vertical frame 211 and a position where it overlaps with the vertical frame indoor panel 242 of the second vertical frame 212. The connecting plate 61 also connects the first vertical frame 211 and the second vertical frame 212. The pair of cover mounting projections 62, 62 have claws 63 formed near their outdoor ends (on the connecting plate 61 side) that project away from each other in the left-right direction.

The cover member 7 is a C-shaped member arranged to extend vertically. The cover member 7 has an interior cover plate portion 71, whose plate surface serves as the finding surface, and a pair of cover protrusions 72, 72 that protrude to the outside of the room from each of the left and right ends of the interior cover plate portion 71. The interior cover plate portion 71 is formed slightly larger in the left-right direction than the connecting plate portion 61. The pair of cover protrusions 72, 72 are formed with larger dimensions in the indoor-outdoor direction than the pair of cover mounting protrusions 62, 62. The pair of cover protrusions 72, 72 have claw portions 73 formed on their exterior ends that protrude toward each other in the left-right direction. The cover member 7 overlaps the interior side of the connecting member 6. The cover member 7 is attached to the connecting member 6 by having a pair of cover projections 72, 72 positioned laterally outside the pair of cover mounting projections 62, 62, and by having the claws 73 of the cover projections 72, 72 engage with the claws 63 of the cover mounting projections 62, 62. The cover chamber inner plate 71 and the connecting plate 61 face each other with a gap between them. A fire-resistant member 9 (see Figure 1) is provided between the cover chamber inner plate 71 and the connecting plate 61.

In the door/window connecting structure 1 according to the above embodiment, the fixing member 5 is a continuous member that extends across almost the entire height of the vertical frames 211, 212. Therefore, in the door/window connecting structure 1 according to this embodiment, the strength of the fixing member 5 is higher than in conventional door/window connecting structures in which the member fixed to the vertical frames 211, 212 and then to the mounting member 4 is a piece-shaped anchor member. This allows both the mounting member 4 and the fixing member 5 to bear the strength of the connecting section 3. Therefore, there is no need to enlarge the mounting member 4 in the indoor/outdoor direction to increase the strength of the connecting section 3. As a result, in the door/window connecting structure 1 according to this embodiment, the mounting member 4 can be enlarged in the indoor/outdoor direction, increasing the strength of the connecting section 3 that connects the door/windows 2, 2 without interfering with other parts, such as handles, attached to the door/window 2 or reducing the design.

In the door/window connecting structure 1 according to the above embodiment, the fixing member 5 consists of two members: a first fixing member 51 fixed to the mounting member 4, and a second fixing member 52 fixed to the first fixing member 51. Therefore, in the door/window connecting structure 1 according to this embodiment, the strength of the fixing member 5 is higher than when there is only one member fixed to the vertical frames 211, 212 and then to the mounting member 4. This allows the fixing member 5 to further bear the strength of the connecting portion 3, thereby increasing the strength of the connecting portion 3 that connects the door/windows 2, 2 together.

In the door/window connecting structure 1 according to the above embodiment, the second fixing member 52 is positioned inward relative to the outer peripheral surfaces of the vertical frames 211, 212. As a result, the second fixing member 52 does not protrude outward from the outer peripheral surfaces of the vertical frames 211, 212. In this embodiment, the second fixing member 52 is positioned in the second hollow portion 262 of the vertical frames 211, 212. As a result, the internal space of the vertical frames 211, 212 can be effectively used to connect the door/windows 2, 2, saving space, and the fixing member 5 can securely fasten the mounting member 4 to the vertical frames 211, 212 with high strength.

In the fitting connection structure 1 according to the above embodiment, the first fixing member 51 and the second fixing member 52 are fixed with screws 81 while sandwiching the vertical frames 211, 212. As a result, the first fixing member 51 and the second fixing member 52 are not directly fixed to the vertical frames 211, 212 with screws 81. Therefore, if the vertical frames 211, 212 and the fixing member 5 are heated by a fire or other event, and the vertical frames 211, 212 and the fixing member 5 undergo different thermal expansion, deformation can be suppressed compared to when the vertical frames 211, 212 and the fixing member 5 are directly fixed. If the fittings 2, 2 are fire doors, fire resistance can be improved.

In the fitting connection structure 1 according to the above embodiment, the upper end 51a of the first fixing member 51 and the upper end 52a of the second fixing member 52 are positioned near the upper end 4a of the mounting member 4. The lower end 51b of the first fixing member 51 and the lower end 52b of the second fixing member 52 are positioned near the lower end 4b of the mounting member 4. In other words, the upper end of the fixing member 5 is positioned near the upper end of the mounting member 4, and the lower end of the fixing member 5 is positioned near the lower end of the mounting member 4. With this configuration, the fixing members 5 are provided across almost the entire mounting member 4 in the vertical direction, thereby increasing the strength of the connection portion 3.

The present disclosure is not limited to the above embodiment and can be modified as appropriate. In the above embodiment, the fixing member 5 is made up of two members: a first fixing member 51 fixed to the mounting member 4 and a second fixing member 52 fixed to the first fixing member 51, but it may also be made up of a single member.

The fixing member 5 may be fixed to the vertical frames 211, 212 and the mounting member 4 in a manner other than that described above. In the above embodiment, the first fixing member 51 is fixed to the mounting member 4 with a screw 82, but fixing methods other than screw fixing are also acceptable. In the above embodiment, the first fixing member 51 and the second fixing member 52 are fixed to the vertical frames 211, 212 with the first vertical frame fixing piece 246 and the second vertical frame fixing piece 247 of the vertical frames 211, 212 sandwiched between them, and the portions of the vertical frames 211, 212 sandwiched between the first fixing member 51 and the second fixing member 52 may be fixed in a manner other than that described above. The first fixing member 51 and the second fixing member 52 may be fixed directly to the vertical frames 211, 212, respectively, without sandwiching the vertical frames 211, 212. The second fixing member 52 may be fixed to the vertical frames 211 and 212, and the first fixing member 51 and the second fixing member 52 may be fixed together.

In the above embodiment, the upper end of the fixing member 5 is located near the upper end of the mounting member 4, and the lower end of the fixing member 5 is located near the lower end of the mounting member 4. The positional relationship of the fixing member 5 with the mounting member 4 may be other than that described above, as long as the fixing member 5 is a member that extends in the vertical direction.

1. Door and window connection structure, 2. Door and window, 3. Connection portion, 4. Mounting member, 4a. Upper end, 4b. Lower end, 5. Fixing member, 11. Wall portion, 12. Opening, 13. Outdoor portion, 14. Indoor portion, 24. Fixing portion, 51. First fixing member, 51a. Upper end, 51b. Lower end, 52. Second fixing member, 52a. Upper end, 52b. Lower end, 81. Screw, 211. Vertical frame, 212. Vertical frame, 245a. Surface (outer surface)

Claims (3)

A pair of fittings provided adjacent to each other in the left-right direction in an opening provided in a wall portion;
Mounting members are arranged between adjacent vertical frames of each of the pair of fittings in the left-right direction and extend in the up-down direction;
a fixing member extending in the vertical direction and fixed to the vertical frame and the mounting member;
The fixing member is
a first fixing member extending in the vertical direction and fixed to the mounting member;
a second fixing member extending in the vertical direction and fixed to the first fixing member ,
A fitting connection structure in which the second fixing member is positioned further inward in the left-right direction than the outer left-right surface of the vertical frame . The fixture connecting structure according to claim 1 , wherein the first fixing member and the second fixing member are fixed with screws while sandwiching the vertical frame therebetween. 3. The fixture connecting structure according to claim 1, wherein the upper end of the fixing member is positioned near the upper end of the mounting member, and the lower end of the fixing member is positioned near the lower end of the mounting member.