Fitting and construction method of fitting

Abstract

To provide a fitting with multiple windows installed in a row at an opening in the building frame, which can improve design.SOLUTION: A fitting 1 includes multiple windows 2, 3 placed side by side. The members 24, 33, which are adjacent to windows 2, 3 adjacent to each other out of the adjacent windows 2, 3 are fastened and connected to each other by a fastening member 37 without using a connection member between the adjacent windows 2 and 3 out of the multiple windows 2, 3.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present disclosure relates to a fitting and a method for installing a fitting.

Background Art

[0002] Conventionally, a fitting in which a plurality of window portions are continuously provided in an opening of a building body has been known (see, for example, Patent Document 1).

Prior Art Document

Patent Document

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the fitting in which a plurality of window portions are continuously provided in the opening of the building body described in Patent Document 1, adjacent window portions are connected using a stile (connecting member). In Patent Document 1, since the finding width (width in the left-right direction) of the stile (connecting member) is large, there is room for improving the design property.

[0005] An object of the present disclosure is to provide a fitting and a method for installing a fitting that can improve the design property in a fitting in which a plurality of window portions are continuously provided in an opening of a building body.

Means for Solving the Problems

[0006] The present disclosure relates to a fitting including a plurality of window portions arranged side by side adjacent to each other, wherein a connecting member is not arranged between adjacent window portions among the plurality of window portions, and members adjacent to each other in the adjacent window portions are fastened and connected by a fastening member.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Embodiments for Carrying Out the Invention

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. In this specification, the "prospective direction" is the direction along the indoor-outdoor direction in the fitting. The "finding direction" is the direction along the surface direction of the facing material (glass) in the fitting, and is a direction orthogonal to the prospective direction. The "found surface" means each surface facing the outdoor side and the indoor side in the fitting, and the "prospective surface" means the surface extending in the indoor-outdoor direction in the fitting. In the drawings, the outdoor side of the fitting is designated as "outdoor side X1", and the indoor side of the fitting is designated as "indoor side X2". The horizontal direction when the fitting is viewed from the front is referred to as "left and right".

[0009] The continuous window 1 (fitting) of the first embodiment is housed in the opening 11 formed in the building body 100. As shown in FIGS. 1 to 4, the continuous window 1 is a continuous window in which two window portions are arranged adjacent to each other in the left-right direction (lateral direction) of the finding direction, and is arranged on one side in the left-right direction of the opening 11 of the building body 100 (the left side in FIG. 1, the right side in FIG. 2). The fixed window 3 (FIX window, window portion, one window portion) and the opening window 2 (window portion, the other window portion) arranged on the other side in the left-right direction of the opening 11 of the building body 100 (the right side in FIG. 1, the left side in FIG. 2). The opening window 2 and the fixed window 3 are connected to each other by fastening the intermediate side vertical frames 24, 33 (adjacent members, vertical members) to each other with screws 37 (fastening members) without arranging a connecting member such as a mullion between the opening window 2 and the fixed window 3.

[0010] As shown in FIG. 1, the opening window 2 is housed on the right side of the opening 11 of the building body 100 when viewed from the outdoor side X1, and on the left side of the opening 11 of the building body 100 when viewed from the indoor side X2 as shown in FIG. 2. As shown in FIGS. 2 and 3, the opening window 2 includes a frame body 20 and a rectangular shoji 25 housed in the frame body 20. The shoji 25 can be opened by pushing the door tip side to the outdoor side X1 and rotating it around a rotation shaft (not shown) provided on the suspension side.

[0011] As shown in FIGS. 2 and 3, the frame body 20 is a frame body framed in a rectangle by an upper frame 21, a lower frame 22, and left and right vertical frames 23 and 24. The upper frame 21, the lower frame 22, and the left and right vertical frames 23 and 24 are composed of metal frames 211, 221, 231, and 241 and resin frames 213, 223, 233, and 243 connected to the indoor side X2 of the metal frames 211, 221, 231, and 241.

[0012] As shown in FIG. 3, in the upper frame 21 and the lower frame 22, the metal frames 211 and 221 are divided into two in the expected direction into an outdoor side frame member 2111, 2211 and an indoor side frame member 2112, 2212. The outdoor side frame members 2111, 2211 and the indoor side frame members 2112, 2212 are both metal frame members, and each is made of an extruded profile extruded in the length direction from a metal material such as aluminum. Between the outdoor side frame members 2111, 2211 and the indoor side frame members 2112, 2212, connecting members 2113, 2213 (bridge materials) are arranged. The outdoor side frame members 2111, 2211 and the indoor side frame members 2112, 2212 are integrally connected by the connecting members 2113, 2213. The connecting members 2113, 2213 are made of a heat-insulating member such as resin, and block the heat transfer from the outdoor side frame members 2111, 2211 to the indoor side frame members 2112, 2212 in the upper frame 21 and the lower frame 22.

[0013] In the upper frame 21 and the lower frame 22, resin frames 213 and 223 are attached to the lower part or the upper part of the indoor side frame members 2112 and 2212 of the metal frames 211 and 221. The resin frames 213 and 223 are made of a synthetic resin such as vinyl chloride resin. More specifically, the resin frames 213 and 223 are formed by extruding a synthetic resin such as vinyl chloride resin. The resin frames 213 and 223 have extending pieces 213a and 223a extending in the finding direction at the end of the indoor side X2. The extending pieces 213a and 223a are screwed and fixed to the frame member 101.

[0014] As shown in Fig. 2, the left and right vertical frames 23 and 24 are composed of a left vertical frame 23 arranged on the left side in the left - right direction of the opening 11 of the building body 100 when viewed from the indoor side X2, and an intermediate - side vertical frame 24 (one - side member) arranged in the middle in the left - right direction of the opening 11 of the building body 100.

[0015] As shown in Fig. 2, the left vertical frame 23 and the intermediate - side vertical frame 24 have a metal frame 231, 241 and a resin frame 233, 243 connected to the indoor side X2 of the metal frame 231, 241. The metal frames 231, 241 are formed of a metal material such as aluminum, for example. More specifically, the metal frames 231, 241 are formed by extrusion - molding an aluminum material. The resin frame 233 of the left vertical frame 23 has an extension piece 233a extending in the finding direction at the end on the indoor side X2. The extension piece 233a is screwed and fixed to the frame member 101. The resin frames 233, 243 are composed of a synthetic resin such as vinyl chloride resin, for example. More specifically, the resin frames 233, 243 are formed by extrusion - molding a synthetic resin such as vinyl chloride resin.

[0016] The metal frame 241 of the intermediate - side vertical frame 24 of the casement window 2 is fastened and fixed to the metal frame 331 of the intermediate - side vertical frame 33 of the fixed window 3 with screws 37. Details of the connection structure connecting the metal frame 241 of the intermediate - side vertical frame 24 of the casement window 2 and the metal frame 331 of the intermediate - side vertical frame 33 of the fixed window 3 will be described later.

[0017] As described above, the casement window 2 of the continuous window 1 according to the present embodiment is a composite type of building fitting in which the outdoor side X1 is made of metal and the indoor side X2 is made of resin. Since the indoor side X2 of the metal frames 211, 221, 231, 241 is covered with the resin frames 213, 223, 233, 243, the casement window 2 of the continuous window 1 has excellent heat insulation properties and dew condensation is suppressed.

[0018] In addition, the opening window 2 of the continuous window 1 according to the present embodiment is configured such that the frame body 20 (upper frame 21, lower frame 22, and left and right vertical frames 23, 24) has metal frames 211, 221, 231, 241 formed of a metal material. Therefore, even if ultraviolet rays become stronger due to factors such as global warming, deterioration against ultraviolet rays can be suppressed more effectively than in a resin sash in which the frame body is formed only of resin. Further, since the frame body 20 (upper frame 21, lower frame 22, and left and right vertical frames 23, 24) has metal frames 211, 221, 231, 241 formed of a metal material such as aluminum, it is easier to recycle than a resin sash in which the frame body is formed only of resin.

[0019] As shown in FIGS. 1 to 3, the shoji 25 includes an upper frame 251, a lower frame 252, left and right vertical frames 253, 254, a frame body 255 formed in a rectangular shape by these frames, and glass 256 fitted and fixed within the frame body 255. As shown in FIG. 2, the left and right vertical frames 253, 254 are composed of a vertical frame 253 on the suspension side disposed on the left side and a vertical frame 254 on the door tip side disposed on the right side when viewed from the indoor side X2.

[0020] As shown in FIGS. 2 and 3, the upper frame 251, the lower frame 252, and the left and right vertical frames 253, 254 include metal frames 2511, 2521, 2531, 2541 and resin frames 2512, 2522, 2532, 2542 connected to the indoor side X2 of the metal frames 2511, 2521, 2531, 2541.

[0021] The metal frames 2511, 2521, 2531, 2541 are formed of a metal material such as aluminum, for example. More specifically, the metal frames 2511, 2521, 2531, 2541 are formed by extrusion molding an aluminum material. The resin frames 2512, 2522, 2532, 2542 are made of a synthetic resin such as vinyl chloride resin, for example. More specifically, the resin frames 2512, 2522, 2532, 2542 are formed by extrusion molding a synthetic resin such as vinyl chloride resin, for example.

[0022] As shown in FIGS. 1 to 3, the glass 256 is formed in a rectangular shape and is fitted and fixed in the frame body 255. The glass 256 fitted in the frame body 255 of the shoji 25 is, as shown in FIGS. 2 and 3, a double-layer glass including a plate glass 256a on the indoor side X2, a plate glass 256b on the outdoor side X1, and a spacer 256c sandwiched between these two plate glasses 256a and 256b at the ends of these two plate glasses 256a and 256b, and has excellent heat insulation properties.

[0023] On the vertical frame 254 on the door tip side, an indoor handle 257a, an outdoor handle 257b, and a handle mechanism 258 are provided. The indoor handle 257a is provided approximately at the center in the vertical direction on the indoor side X2 surface of the vertical frame 254 on the door tip side. The outdoor handle 257b is provided approximately at the center in the vertical direction on the outdoor side X1 surface of the vertical frame 254 on the door tip side. When the indoor handle 257a or the outdoor handle 257b is rotated with the shoji 25 closed, the lock of the handle mechanism 258 is released. In this state, when the door tip side of the shoji 25 is pushed out to the outdoor side X1, the shoji 25 is opened by rotating around the rotation axis on the suspension side. Further, when the door tip side of the shoji 25 is pulled back to the indoor side X2 and the indoor handle 257a or the outdoor handle 257b is rotated, the shoji 25 is locked in the closed state by the handle mechanism 258.

[0024] As shown in FIG. 1, the fixed window 3 is placed on the left side of the opening 11 of the building body 100 when viewed from the outdoor side X1, and as shown in FIG. 2, is placed on the right side of the opening 11 of the building body 100 when viewed from the indoor side X2. The fixed window 3 includes a frame body 30 and a rectangular glass 35 fitted and fixed in the frame body 30, as shown in FIGS. 2 and 4. The fixed window 3 is also referred to as a FIX window.

[0025] The glass 35 disposed in the fixed window 3 and the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged side by side in the finding direction in a state where at least a part of the expected thickness portions of the glasses 35 and 256 face each other overlap when viewed in the finding direction. In the present embodiment, the glass surface on the outdoor side X1 of the glass 35 disposed in the fixed window 3 and the glass surface on the outdoor side X1 of the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged on the same plane (flush). The glass surface on the indoor side X2 of the glass 35 disposed in the fixed window 3 and the glass surface on the indoor side X2 of the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged on the same plane (flush).

[0026] As shown in FIGS. 2 and 4, the frame body 30 is a frame body framed in a rectangle by an upper frame 31, a lower frame 32, and left and right vertical frames 33 and 34. The upper frame 31, the lower frame 32, and the left and right vertical frames 33 and 34 include metal frames 311, 321, 331, and 341 and resin frames 313, 323, 333, and 343 connected to the indoor side X2 of the metal frames 311, 321, 331, and 341.

[0027] As shown in FIG. 4, in the upper frame 31 and the lower frame 32, the metal frames 311 and 321 are divided into two in the expected direction into an outdoor side frame member 3111, 3211 and an indoor side frame member 3112, 3212. The outdoor side frame members 3111, 3211 and the indoor side frame members 3112, 3212 are both metal frame members, each made of an extruded profile extruded in the length direction from a metal material such as aluminum. Connecting members 3113, 3213 (bridge materials) are disposed between the outdoor side frame members 3111, 3211 and the indoor side frame members 3112, 3212. The outdoor side frame members 3111, 3211 and the indoor side frame members 3112, 3212 are integrally connected by the connecting members 3113, 3213. The connecting members 3113, 3213 are made of a heat-insulating member such as resin, and block the heat transfer from the outdoor side frame members 3111, 3211 to the indoor side frame members 3112, 3212 in the upper frame 31 and the lower frame 32.

[0028] In the upper frame 31 and the lower frame 32, resin frames 313 and 323 are attached to the lower portions of the indoor-side frame members 3112 and 3212 of the metal frames 311 and 321. The resin frames 313 and 323 are made of a synthetic resin such as vinyl chloride resin. More specifically, the resin frames 313 and 323 are formed by extrusion molding a synthetic resin such as vinyl chloride resin. The resin frames 313 and 323 have extending pieces 313a and 323a that extend in the finding direction at the ends on the indoor side X2. The extending pieces 313a and 323a are screwed to the frame member 101.

[0029] As shown in FIG. 4, an edge pressing member 314 is provided on the outdoor side X1 of the upper frame 31. The edge pressing member 314 presses the peripheral edge of the glass 35 via a buffer member 314a. As a result, the edge of the upper end portion of the glass 35 is clamped between the resin frame 313 of the upper frame 31 and the edge pressing member 314.

[0030] As shown in FIG. 2, the left and right vertical frames 33 and 34 are composed of an intermediate-side vertical frame 33 (the other-side member) disposed in the middle in the left-right direction of the opening 11 of the building body 100 and a right-side vertical frame 34 disposed on the right side in the left-right direction of the opening 11 of the building body 100 when viewed from the indoor side X2.

[0031] As shown in FIG. 2, the intermediate-side vertical frame 33 and the right-side vertical frame 34 have metal frames 331 and 341 and resin frames 333 and 343 connected to the indoor side X2 of the metal frames 331 and 341. The metal frames 331 and 341 are formed of a metal material such as aluminum. More specifically, the metal frames 331 and 341 are formed by extrusion molding an aluminum material. The resin frame 343 of the right-side vertical frame 34 has an extending piece 343a that extends in the finding direction at the end on the indoor side X2. The extending piece 343a is screwed to the frame member 101. The resin frames 333 and 343 are made of a synthetic resin such as vinyl chloride resin. More specifically, the resin frames 333 and 343 are formed by extrusion molding a synthetic resin such as vinyl chloride resin.

[0032] As shown in FIG. 2, on the outdoor side X1 of the intermediate vertical frame 33 and the right vertical frame 34, pressing edges 334 and 344 are provided. The pressing edges 334 and 344 press the peripheral edge of the glass 35 via the buffer members 334a and 344a. Thereby, between the resin frames 333 and 343 of the intermediate vertical frame 33 and the right vertical frame 34 and the pressing edges 334 and 344, the edge portions of the left and right ends of the glass 35 are clamped.

[0033] As shown in FIGS. 1, 2, and 4, the glass 35 is formed in a rectangle and is fitted and fixed in the frame body 30. As shown in FIGS. 2 and 4, the glass 35 is a multilayer glass including a plate glass 351 on the indoor side X2, a plate glass 352 on the outdoor side X1, and a spacer 353 sandwiched between these two plate glasses 351 and 352 at the ends of these two plate glasses 351 and 352, and has excellent heat insulation properties.

[0034] The metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 is fastened and fixed to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 with screws 37. Details of the connection structure for connecting the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 will be described later.

[0035] As described above, the fixed window 3 of the continuous window 1 according to the present embodiment is a composite fixture in which the outdoor side X1 is made of metal and the indoor side X2 is made of resin. Since the indoor side X2 of the metal frames 311, 321, 331, and 341 is covered with the resin frames 313, 323, 333, and 343, the fixed window 3 of the continuous window 1 has excellent heat insulation properties and dew condensation is suppressed.

[0036] In addition, the fixed window 3 of the continuous window 1 according to the present embodiment is configured such that the frame body 30 (upper frame 31, lower frame 32, left and right vertical frames 33, 34) has metal frames 311, 321, 331, 341 formed of a metal material. Therefore, even if ultraviolet rays become stronger due to factors such as global warming, deterioration against ultraviolet rays can be suppressed more effectively than in a resin sash in which the frame body is formed only of resin. Further, since the frame body 30 (upper frame 31, lower frame 32, left and right vertical frames 33, 34) has metal frames 311, 321, 331, 341 formed of a metal material such as aluminum, it is easier to recycle than a resin sash in which the frame body is formed only of resin.

[0037] Next, a connection structure for connecting the opening window 2 and the fixed window 3 will be described. As shown in FIG. 5, in the present embodiment, in the portion connecting the opening window 2 and the fixed window 3, no connecting member such as a mullion is provided, and the opening window 2 and the fixed window 3 are arranged side by side adjacent to each other in the left - right direction. In this state, the opening window 2 and the fixed window 3 are connected by screwing (fastening member) the intermediate - side vertical frame 24 of the opening window 2 and the intermediate - side vertical frame 33 of the fixed window 3 adjacent to each window part of the opening window 2 and the fixed window 3 without arranging a connecting member such as a mullion between the opening window 2 and the fixed window 3. Specifically, the metal frame 241 of the intermediate - side vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate - side vertical frame 33 of the fixed window 3 are fastened and connected by a screw 37 (fastening member).

[0038] First, before describing the connection structure for connecting the opening window 2 and the fixed window 3, the configurations of the intermediate - side vertical frame 24 of the opening window 2 and the intermediate - side vertical frame 33 of the fixed window 3 will be described.

[0039] As shown in FIG. 5, the intermediate - side vertical frame 24 of the opening window 2 has a metal frame 241 extending in the expected direction and a resin frame 243 connected to the end of the metal frame 241 on the indoor side X2.

[0040] As shown in FIG. 5, the metal frame 241 includes a prospective direction extending plate 2411 (one-side prospective surface portion) that is disposed to face the end surface of the end portion of the glass 256 (see FIG. 2) of the shoji 25 in the finding direction and extends in the prospective direction, an L-shaped hook piece 2412 formed at the end portion of the prospective direction extending plate 2411 on the outdoor side X1 and protruding toward the fitting-killing window 3 in the left-right direction, a hollow frame 2413 having a hollow portion 2413a formed to protrude in a rectangular shape in cross-section on the inner peripheral side of the frame body 20 of the opening window 2 on the outdoor side X1 of the prospective direction extending plate 2411, a protruding piece 2413c protruding toward the indoor side X2 from the middle in the left-right direction of the left-right direction extending piece 2413b formed at the end portion of the hollow frame 2413 on the indoor side X2 side, an indoor-side end fitting-killing side protruding piece 2414 formed at the end portion of the prospective direction extending plate 2411 on the indoor side X2 and protruding toward the fitting-killing window 3 in the left-right direction, an indoor-side end shoji-side extending plate 2415 (finding surface portion) formed at the end portion of the prospective direction extending plate 2411 on the indoor side X2, extending to the inner peripheral side of the frame body 20 of the opening window 2, and extending in the finding direction, a protrusion 2416 protruding toward the outdoor side X1 at the end portion side on the shoji 25 side of the indoor-side end shoji-side extending plate 2415, a first intermediate protruding piece 2417 (one-side protruding portion) and a second intermediate protruding piece 2418 that are spaced apart in the prospective direction and protrude toward the fitting-killing window 3 in the left-right direction at a position in the middle of the prospective direction of the prospective direction extending plate 2411, and a shoji-side intermediate protruding piece 2419 protruding to the inner peripheral side of the frame body 20 of the opening window 2 at a position in the middle of the prospective direction of the prospective direction extending plate 2411.

[0041] The resin frame 243 is attached to the inner peripheral side of the frame body 20 of the opening window 2 at the end of the indoor side X2 of the metal frame 241. The resin frame 243 is composed of a hollow structure having a plurality of hollow parts. The resin frame 243 includes a lattice part 2431 in which four hollow parts 2431a are arranged in a lattice pattern, a first hollow part 2432 arranged on the side of the shoji 25 in the left - right direction of the prospective surface at the end of the indoor side X2 of the lattice part 2431, a second hollow part 2433 arranged side by side in the indoor side X2 in the prospective direction of the first hollow part 2432, an outdoor - direction extending plate 2434 extending from the end of the inner peripheral side of the frame body 20 of the opening window 2 at the end of the outdoor side X1 of the lattice part 2431 to the outdoor side X1, an intermediate hooking projection part 2435 protruding from the middle of the outdoor - direction extending plate 2434 in the prospective direction to the side of the fitting - killing window 3 in the left - right direction, a waterproof - material arrangement part 2436 formed on the outdoor - side X1 surface of the first hollow part 2432, an indoor - side hooking projection 2437 protruding from the middle of the indoor side X2 in the prospective direction of the second hollow part 2433 to the side of the fitting - killing window 3 in the left - right direction, and an extending plate 2438 extending from the end of the left - right direction of the shoji 25 side at the end of the indoor side X2 of the second hollow part 2433 to the indoor side X2.

[0042] When the resin frame 243 is attached to the inner peripheral side of the frame body 20 of the opening window 2 at the end of the indoor side X2 of the metal frame 241, the outdoor - direction extending plate 2434 of the resin frame 243 is arranged along the shoji - 25 - side surface of the protruding piece 2413c of the metal frame 241. The L - shaped hooking projection 2435a at the tip of the intermediate hooking projection part 2435 of the resin frame 243 is hooked and engaged with the tip part of the shoji - side intermediate protruding piece 2419 of the metal frame 241.

[0043] Also, the hooking part 2437a at the tip of the indoor - side hooking projection 2437 of the resin frame 243 is hooked and engaged with the projection 2416 protruding to the outdoor side at the end of the shoji - 25 - side of the indoor - side end - shoji - side extending plate 2415 of the metal frame 241. A waterproof material 2436a is attached to the waterproof - material arrangement part 2436 of the resin frame 243, and the waterproof material 2436a is pressed against the indoor - side X2 surface of the resin frame body 2542 of the vertical frame 254 of the shoji 25 when the shoji 25 is in the closed position.

[0044] As shown in Fig. 5, the intermediate vertical frame 33 of the deadening window 3 has a metal frame 331 extending in the prospective direction and a resin frame 333 connected to the end of the metal frame 331 on the indoor side X2.

[0045] As shown in Fig. 5, the metal frame 331 has a prospective direction extending plate 3311 (the other side prospective surface portion) extending in the prospective direction, a water stop material arrangement portion 3312 formed on the surface on the side of the opening window 2 in the left - right direction at the end side on the outdoor side X1 of the prospective direction extending plate 3311, a T - shaped protrusion 3313 protruding toward the opening window 2 in the left - right direction on the outdoor side X1 of the water stop material arrangement portion 3312, a pair of engagement protrusions 3314, 3315 spaced apart in the prospective direction and protruding toward the inner peripheral side of the frame body 30 of the deadening window 3 at the end side on the outdoor side X1 of the prospective direction extending plate 3311, an intermediate protrusion portion 3316 protruding toward the inner peripheral side of the frame body 30 of the deadening window 3 in the middle of the prospective direction of the prospective direction extending plate 3311 and having a U - shaped open portion 3316a at the tip, an indoor side end extending plate 3317 (searching surface portion) formed at the end on the indoor side X2 of the prospective direction extending plate 3311, extending toward the opening window 2 in the left - right direction and extending in the searching direction, an end indoor side protruding plate 3318 protruding toward the indoor side X2 from the end on the side of the opening window 2 in the left - right direction of the indoor side end extending plate 3317, an intermediate indoor side protruding plate 3319 protruding toward the indoor side X2 from the middle of the indoor side end extending plate 3317 in the left - right direction, an indoor side end extending plate 3320 formed at the end on the indoor side X2 of the prospective direction extending plate 3311 and extending toward the inner peripheral side of the frame body 30 of the deadening window 3, an intermediate indoor side protruding plate 3321 protruding toward the indoor side X2 from the middle of the indoor side end extending plate 3320 in the left - right direction, a protrusion 3322 protruding toward the outdoor side X1 at the end side on the inner peripheral side of the frame body 30 of the deadening window 3 of the indoor side end extending plate 3320, and a first intermediate protruding piece 3323 (the other side protruding portion) and a second intermediate protruding piece 3324 spaced apart in the prospective direction and protruding toward the opening window 2 in the left - right direction in the middle of the prospective direction of the prospective direction extending plate 3311.

[0046] A waterstop material 3312a is attached to the waterstop material placement part 3312. The waterstop material 3312a is pressed against the surface on the side of the fitting stop window 3 in the left - right direction at the end side on the outdoor side X1 of the extending plate 2411 in the expected direction of the metal frame 241 of the middle - side vertical frame 24 of the opening window 2. A pressing edge 334 is attached to the pair of engaging protrusions 3314, 3315.

[0047] The resin frame 333 is attached to the inner - peripheral side of the frame body 30 of the fitting stop window 3 at the end on the indoor side X2 of the metal frame 331. The resin frame 333 is composed of a hollow structure having a plurality of hollow parts. The resin frame 333 has a main body frame 3331 having two hollow parts 3331a, 3331b arranged side by side in the expected direction, an outdoor - side protrusion 3332 protruding toward the opening window 2 side in the left - right direction at the end side on the outdoor side X1 of the main body frame 3331, an indoor - side protrusion 3333 protruding toward the opening window 2 side in the left - right direction at the end side on the indoor side X2 of the main body frame 3331, and an extending plate 3334 extending from the end on the inner - peripheral side of the frame body 30 to the indoor side X2 at the end side on the indoor side X2 of the main body frame 3331.

[0048] The outdoor - side protrusion 3332 of the resin frame 333 engages with an engaging protrusion 3316b formed in the U - shaped opening part 3316a of the intermediate protruding part 3316 of the metal frame 331. The indoor - side protrusion 3333 of the resin frame 333 engages with a protrusion 3322 formed in the indoor - side end - extending plate 3320 of the metal frame 331. A waterstop material 3331c is provided at the end on the outdoor side X1 of the main body frame 3331. The waterstop material 3331c is pressed against the surface on the outdoor side X1 of the end of the glass 35 on the middle - side vertical frame 33 side in the left - right direction by the resin frame 333.

[0049] Next, a connecting structure for connecting the middle - side vertical frame 24 of the opening window 2 and the middle - side vertical frame 33 of the fitting stop window 3 will be described. As shown in FIG. 5, the metal frame 241 of the middle - side vertical frame 24 of the opening window 2 and the metal frame 331 of the middle - side vertical frame 33 of the fitting stop window 3 are fastened and fixed by a screw 37 (fastening member) in a state where they are engaged with each other.

[0050] As shown in Fig. 5, in a state where the middle vertical frame 24 of the opening window 2 and the middle vertical frame 33 of the fixed window 3 are connected, the middle vertical frame 24 of the opening window 2 and the middle vertical frame 33 of the fixed window 3 are formed to extend in the expected direction and are arranged side by side in the left - right direction without passing through a connecting member such as a vertical post. There is no connecting member such as a vertical post arranged between the middle vertical frame 24 of the opening window 2 and the middle vertical frame 33 of the fixed window 3, and an elongated hollow portion 40a extending in the expected direction is formed.

[0051] As shown in Fig. 5, the metal frame 241 of the middle vertical frame 24 of the opening window 2 and the metal frame 331 of the middle vertical frame 33 of the fixed window 3 are engaged such that the T - shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the middle vertical frame 33 of the fixed window 3 is hooked on the L - shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the middle vertical frame 24 of the opening window 2 at the end on the outdoor side X1. On the indoor side X2, the indoor - side end partition - side extension plate 2415 of the metal frame 241 of the middle vertical frame 24 of the opening window 2 and the indoor - side end extension plate 3317 of the metal frame 331 of the middle vertical frame 33 of the fixed window 3 are arranged to overlap in the expected direction. In this state, the indoor - side end partition - side extension plate 2415 of the metal frame 241 of the middle vertical frame 24 of the opening window 2 and the indoor - side end extension plate 3317 of the metal frame 331 of the middle vertical frame 33 of the fixed window 3 are fastened together by passing a screw 37 penetrating in the expected direction from the indoor side X2 to the outdoor side X1. Thus, the indoor - side end partition - side extension plate 2415 of the metal frame 241 of the middle vertical frame 24 of the opening window 2 and the indoor - side end extension plate 3317 of the metal frame 331 of the middle vertical frame 33 of the fixed window 3 are fastened and connected by the screw 37.

[0052] In this state, an elongated hollow portion 40a extending in the prospective direction is formed between the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3. From the prospective direction extending plate 2411 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, a first intermediate protruding piece 2417 protrudes toward the intermediate vertical frame 33 side of the fixed window 3. From the prospective direction extending plate 3311 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, a first intermediate protruding piece 3323 protrudes toward the intermediate vertical frame 24 side of the opening window 2. A water stop material 36 is sandwiched and disposed between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the first intermediate protruding piece 3323 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3.

[0053] By sandwiching and disposing the water stop material 36 between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the first intermediate protruding piece 3323 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, the flow of water is blocked in the middle of the prospective direction between the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3, suppressing the intrusion of water from the outdoor side X1 to the indoor side X2. Thereby, the water stop performance can be improved at the connecting portion between the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3.

[0054] In the state where the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 are connected, the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 are formed to extend in the prospective direction with respect to each other, and are arranged side by side in the left - right direction so that the distance between them becomes closer. Therefore, compared with the case of using a connecting member such as a stile, the width (search width) in the left - right direction can be made smaller.

[0055] In this embodiment, as shown in FIG. 5, on the indoor side X2, the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the middle-side vertical frame 33 of the fitted-and-killed window 3 overlap in the prospective direction and are fixed by screws 37. On the outdoor side X1, at a position shifted in the left-right direction toward the fitted-and-killed window 3 from the portion where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the middle-side vertical frame 33 of the fitted-and-killed window 3 overlap in the prospective direction and are fixed by screws 37, a T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the middle-side vertical frame 33 of the fitted-and-killed window 3 is hooked and engaged with an L-shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2. As a result, on the outdoor side X1, the engaging portion where the T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the middle-side vertical frame 33 of the fitted-and-killed window 3 is hooked and engaged with the L-shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2, and the screw-fixing portion where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the middle-side vertical frame 33 of the fitted-and-killed window 3 overlap in the prospective direction and are fixed by screws 37 are arranged on an inclined line inclined and shifted with respect to a line extending in the prospective direction. Thus, in a state where the middle-side vertical frame 24 of the opening window 2 and the middle-side vertical frame 33 of the fitted-and-killed window 3 are combined, the engaging portion and the screw-fixing portion are arranged diagonally. Therefore, in a state where the middle-side vertical frame 24 of the opening window 2 and the middle-side vertical frame 33 of the fitted-and-killed window 3 are combined, even without a stile, the strength of the portion where the middle-side vertical frame 24 of the opening window 2 and the middle-side vertical frame 33 of the fitted-and-killed window 3 are combined can be ensured.

[0056] As shown in Fig. 5, in a state where the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 is connected to the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, a resin cover material 4 is detachably attached to the surface of the indoor side X2 at the end of the indoor side X2 of the portion where the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 is connected to the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3.

[0057] The resin cover material 4 has a width in the left - right direction and extends in the up - down direction. The resin cover material 4 is arranged across the portion connecting the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 in the left - right direction.

[0058] The resin cover material 4 is arranged to cover the surface of the indoor side X2 of the connecting portion connecting the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3. The size of the width of the resin cover material 4 in the left - right direction is formed to be equal to or larger than the width of the connecting portion connecting the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3. In this embodiment, the size of the width of the resin cover material 4 in the left - right direction is formed to be the same as the size of the width of the connecting portion connecting the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 in the left - right direction.

[0059] The prospective surface 4a on the opening window 2 side in the left - right direction of the resin cover material 4 is arranged on the same plane as the prospective surface 243a on the inner peripheral side of the frame body 20 of the opening window 2 of the resin frame 243 of the intermediate vertical frame 24 of the opening window 2, and the prospective surface 4b on the fixed window 3 side in the left - right direction of the resin cover material 4 is arranged on the same plane as the prospective surface 333a on the inner peripheral side of the frame body 30 of the fixed window 3 of the resin frame 343 of the intermediate vertical frame 33 of the fixed window 3.

[0060] The resin cover material 4 includes a cover material main body 41 formed in a plate shape having a thickness in the expected direction, having a width in the left - right direction and extending in the up - down direction, a pair of end - restricting hollow portions 42 formed at both end portions in the width direction of the cover material main body 41, and a pair of outdoor - side protruding hollow frames 43 protruding to the outdoor side X1 inside the resin cover material 4 in the left - right direction, inside the pair of end - restricting hollow portions 42 on both end - side portions in the width direction of the cover material main body 41. Each of the pair of outdoor - side protruding hollow frames 43 has an outdoor - side engaging protrusion 431 formed on the outdoor - side X1 side surface inside the resin cover material 4 in the left - right direction, and an indoor - side engaging protrusion 432 formed on the indoor - side X2 side surface inside the resin cover material 4 in the left - right direction, inside the outdoor - side engaging protrusion 431.

[0061] When attaching the resin cover material 4 to the indoor side X2 of the connecting portion connecting the intermediate - side vertical frame 24 of the opening window 2 and the intermediate - side vertical frame 33 of the fixed - sash window 3, among the pair of outdoor - side protruding hollow frames 43, the outdoor - side protruding hollow frame 43 on the opening - window 2 side is inserted between the extension plate 2438 of the resin frame 243 of the intermediate - side vertical frame 24 of the opening window 2 and the end - indoor - side protruding plate 3318 of the metal frame 331 of the intermediate - side vertical frame 33 of the fixed - sash window 3, and the outdoor - side protruding hollow frame 43 on the fixed - sash window 3 side is inserted between the extension plate 3334 of the resin frame 333 of the intermediate - side vertical frame 33 of the fixed - sash window 3 and the intermediate - indoor - side protruding plate 3321 of the metal frame 331 to be attached.

[0062] In the state where the resin cover material 4 is attached, the surface on the outdoor side X1 of the end regulation hollow portion 42 on the opening window 2 side abuts against the end face on the indoor side X2 of the extension plate 2438 of the resin frame 243 of the intermediate vertical frame 24 of the opening window 2, and the surface on the outdoor side X1 of the end regulation hollow portion 42 on the fixed window 3 side abuts against the end face on the indoor side X2 of the extension plate 3334 of the resin frame 333 of the intermediate vertical frame 33 of the fixed window 3. Then, the outdoor protruding hollow frame 43 on the opening window 2 side is disposed between the extension plate 2438 of the resin frame 243 of the intermediate vertical frame 24 of the opening window 2 and the end indoor protruding plate 3318 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, and the protruding portion on the tip side of the end indoor protruding plate 3318 engages with the outdoor engaging protrusion 431. Further, the outdoor protruding hollow frame 43 on the fixed window 3 side is disposed between the extension plate 3334 of the resin frame 333 of the intermediate vertical frame 33 of the fixed window 3 and the intermediate indoor protruding plate 3321 of the metal frame 331, and the protruding portion on the tip side of the intermediate indoor protruding plate 3321 engages with the outdoor engaging protrusion 431.

[0063] A procedure for connecting the opening window 2 and the fixed window 3 will be described. When connecting the opening window 2 and the fixed window 3, as shown in the left and center views of FIG. 6, first, the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 is connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. When connecting the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, as shown in FIG. 5, the resin frame 243 is preliminarily attached to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, and the resin frame 333 is preliminarily attached to the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, and then the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 is connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. In FIG. 6, the resin frames 243 and 333 are not shown.

[0064] Specifically, as shown in the left figure of Fig. 6, the water stop material 36 is arranged at the tip of the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. In this state, without arranging a connecting member such as a square post between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3, at the end on the outdoor side X1, the T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 is hooked and engaged with the L-shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. With the parts on the indoor side X2 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 approaching each other, with respect to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 is rotated around the T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3, and as shown in the central figure of Fig. 6, on the indoor side X2, the indoor-side end shoji-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 are moved so as to overlap in the expected direction.

[0065] Thereby, in order to rotate and attach the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 around the T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 with respect to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, rather than moving and attaching the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 in the expected direction, the water stop material 36 is sandwiched between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the first intermediate protruding piece 3323 of the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 in a non-turnable state, and the metal frame 331 of the intermediate vertical frame 33 of the fitted window 3 can be attached to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2.

[0066] Next, as shown in the central view of FIG. 6, with the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 overlapped in the prospective direction, a screw 37 is passed through from the indoor side X2 to the outdoor side X1 and tightened together. As shown in the right view of FIG. 6, the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 are fastened and connected by the screw 37. Thereby, even without using a connecting member such as a corner post, the opening window 2 and the fixed window 3 can be connected.

[0067] In addition, in the present embodiment, the waterproofing material 36 is first attached to the side of the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, but it is not limited thereto. The waterproofing material 36 may be first attached to the side of the first intermediate protruding piece 3323 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3.

[0068] Thereafter, as shown in FIG. 5, a resin cover material 4 is attached to the indoor-side X2 surface of the connecting portion where the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 are connected.

[0069] The continuous window 1 of the first embodiment has the following effects. In the continuous window 1 of the present embodiment, no connecting member is arranged between the adjacent opening window 2 and the fixed window 3, and the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 adjacent to each window portion in the adjacent opening window 2 and fixed window 3 are fastened and connected by the screw 37.

[0070] As a result, a connecting member can be eliminated between the adjacent opening window 2 and the fixed window 3, so that the connecting portion of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 can be slimmed down, improving the design property. Also, since a connecting member can be eliminated between the adjacent opening window 2 and the fixed window 3, the cost required for the connecting member can be reduced. Further, since a connecting member can be eliminated between the adjacent opening window 2 and the fixed window 3, the connecting portion of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 can be slimmed down, and the areas facing the indoor side X2 and the outdoor side X1 can be reduced, thus improving the heat insulation performance.

[0071] In the present embodiment, the opening window 2 and the fixed window 3 are connected by fastening the intermediate vertical frames 24 and 33 of each other with screws 37. As a result, since they can be fastened and connected by screw fixing with the screws 37, while ensuring the connection strength, slimming of the connection portion of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 can be realized.

[0072] In the present embodiment, the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 are overlapped and connected in the prospecting direction. As a result, by overlapping and connecting the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 extending in the finding direction and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 extending in the finding direction in the prospecting direction, while improving the strength in the prospecting direction (e.g., wind pressure resistance strength), by overlapping in the prospecting direction, the finding width (width in the left-right direction) can be reduced and slimmed down.

[0073] In this embodiment, on the indoor side X2, the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate-side vertical frame 33 of the fixed window 3 are fixed by screws 37 in a state where they overlap in the prospective direction. On the outdoor side X1, at a position shifted in the left-right direction toward the fixed window 3 side from the portion fixed by the screws 37 in a state where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate-side vertical frame 33 of the fixed window 3 overlap in the prospective direction, a T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the intermediate-side vertical frame 33 of the fixed window 3 is hooked and engaged with an L-shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate-side vertical frame 24 of the opening window 2. As a result, on the outdoor side X1, the engaging portion where the T-shaped protrusion 3313 formed on the outdoor side X1 of the metal frame 331 of the intermediate-side vertical frame 33 of the fixed window 3 is hooked and engaged with the L-shaped hook piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate-side vertical frame 24 of the opening window 2, and the screw fixing portion where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate-side vertical frame 24 of the opening window 2 and the indoor-side end extension plate 3317 of the metal frame 331 of the intermediate-side vertical frame 33 of the fixed window 3 overlap in the prospective direction and are fixed by the screws 37 are arranged on an inclined line inclined and shifted with respect to a line extending in the prospective direction. Thus, in a state where the intermediate-side vertical frame 24 of the opening window 2 and the intermediate-side vertical frame 33 of the fixed window 3 are combined, the engaging portion and the screw fixing portion are arranged on a diagonal line. Therefore, in a state where the intermediate-side vertical frame 24 of the opening window 2 and the intermediate-side vertical frame 33 of the fixed window 3 are combined, even without a stile, the strength of the portion where the intermediate-side vertical frame 24 of the opening window 2 and the intermediate-side vertical frame 33 of the fixed window 3 are combined can be ensured.

[0074] In this embodiment, a waterproofing material 36 is sandwiched and disposed between a first intermediate protruding piece 2417 of a metal frame 241 of a middle-side vertical frame 24 of the opening window 2 and a first intermediate protruding piece 3323 of a metal frame 331 of a middle-side vertical frame 33 of the fixed window 3. Thereby, the waterproof performance between members of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2 and the metal frame 331 of the middle-side vertical frame 33 of the fixed window 3 can be improved.

[0075] In this embodiment, the frame body 20 of the opening window 2 and the frame body 30 of the fixed window 3 each have at least a metal frame formed of a metal material. Thereby, since the opening window 2 and the fixed window 3 are composed of metal sashes, deterioration due to ultraviolet rays and the like can be suppressed as compared with resin sashes in which the entire frame body is formed of a resin material.

[0076] In this embodiment, the adjacent opening window 2 and fixed window 3 are different in the type of window part. The glass 35 disposed in the fixed window 3 and the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged side by side in the finding direction in a state where at least a part of the expected thickness portions of the mutually facing glasses 35 and 256 overlaps in the finding direction. Conventionally, for example, when an opening window and a fixed window were arranged adjacent to each other, considering the heat insulation performance, the glass of the fixed window was arranged closer to the indoor side. On the other hand, in the present disclosure, as a result of improving the heat insulation performance by slimming the connecting portion of the metal frame 241 of the middle-side vertical frame 24 of the opening window 2 and the metal frame 331 of the middle-side vertical frame 33 of the fixed window 3, the glass 35 disposed in the fixed window 3 can be moved to the outdoor side, and it is possible to arrange them side by side in the finding direction in a state where at least a part of the expected thickness portions of the mutually facing glasses 35 and 256 overlaps in the finding direction, so that the design property can be improved.

[0077] In this embodiment, the adjacent opening window 2 and the fixed window 3 are of different window types. The glass surface on the outdoor side X1 of the glass 35 arranged in the fixed window 3 and the glass surface on the outdoor side X1 of the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged on the same plane. The glass surface on the indoor side X2 of the glass 35 arranged in the fixed window 3 and the glass surface on the indoor side X2 of the glass 256 of the shoji 25 of the adjacent opening window 2 are arranged on the same plane. Conventionally, for example, when an opening window and a fixed window were arranged adjacent to each other, considering the heat insulation performance, the glass of the fixed window was arranged closer to the indoor side. In contrast, in the present disclosure, by slimming the connecting portion of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, the heat insulation performance could be improved. As a result, the glass 35 arranged in the fixed window 3 could be moved to the outdoor side, and by arranging the glass surface on the indoor side X2 of the glass 35 arranged in the fixed window 3 and the glass surface on the indoor side X2 of the glass 256 of the shoji 25 of the adjacent opening window 2 on the same plane, it is possible to align the glass surfaces on the same plane, so that the design property can be improved.

[0078] In the construction method of the fitting of this embodiment, without arranging a connecting member between the adjacent opening window 2 and the fixed window 3, the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 adjacent to each window part in the adjacent opening window 2 and the fixed window 3 are fastened and connected by screws 37. Thereby, the labor of fixing the metal frame 241 of the intermediate vertical frame 24 of the adjacent opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 to a connecting member such as a stile is reduced, and the number of assembly steps can be reduced.

[0079] In the construction method of the fitting of this embodiment, a waterproof material 36 is disposed between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3. When connecting the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, with respect to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 is rotated and fixed in an engaged state. Thereby, when connecting the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3, it is possible to suppress the curling of the waterproof material 36.

[0080] Next, a second embodiment will be described. As shown in FIGS. 7 and 8, compared with the continuous window 1 of the first embodiment, the continuous window 1A (fitting) of the second embodiment mainly has a different connection structure for connecting the opening window 2 (window portion) and the fixed window 3A (window portion). The connection structure for connecting the opening window 2 and the fixed window 3A in the second embodiment is a connection structure in which they are connected via an intermediate member 45 between the opening window 2 and the fixed window 3A. In the description of the second embodiment, the description of the same configuration as that of the first embodiment will be omitted.

[0081] As shown in FIG. 7, the continuous window 1A (fitting) of the second embodiment is, similar to the first embodiment, a continuous window in which two window portions 2 and 3A are arranged adjacent to each other in the left - right direction of the finding direction, and is an opening window 2 (window portion) disposed on one side in the left - right direction of the opening 11 of the building body 100, a fixed window 3A (FIX window, window portion) disposed on the other side in the left - right direction of the opening 11 of the building body 100, and an intermediate member 45 disposed between the opening window 2 and the fixed window 3A. The opening window 2 and the fixed window 3A are connected via the intermediate member 45.

[0082] Since the configuration of the opening window 2 in the second embodiment is the same as the configuration of the opening window 2 in the first embodiment, the description thereof will be omitted.

[0083] As shown in FIG. 7, the intermediate vertical frame 33A of the blind window 3A of the second embodiment has a metal frame 335 and a resin frame 333. Since the resin frame 333 of the intermediate vertical frame 33A of the blind window 3A of the second embodiment has the same configuration as the resin frame 333 of the intermediate vertical frame 33 of the blind window 3 of the first embodiment, the description thereof is omitted.

[0084] As shown in FIG. 8, the metal frame 335 of the intermediate vertical frame 33A of the blind window 3A of the second embodiment includes a prospective direction extending plate 3351 extending in the prospective direction, a water stop material arrangement portion 3352 formed on the surface on the side of the opening window 2 in the left-right direction at the end of the prospective direction extending plate 3351 on the outdoor side X1, an inclined protrusion 3353 that curves and protrudes toward the blind window 3 side in the left-right direction on the indoor side X2 of the water stop material arrangement portion 3352, a pair of engaging protrusions 3354, 3355 that are arranged at intervals in the prospective direction on the end side of the prospective direction extending plate 3351 on the outdoor side X1 and protrude to the inner peripheral side of the frame body 30 of the blind window 3A, a midway protrusion 3356 that protrudes to the inner peripheral side of the frame body 30 of the blind window 3A in the middle of the prospective direction of the prospective direction extending plate 3351 and has a U-shaped opening portion 3356a at the tip, an indoor side end extending plate 3360 that extends from the end of the prospective direction extending plate 3351 on the indoor side X2 to the inner peripheral side of the frame body 30 of the blind window 3A, a midway indoor side protruding plate 3361 that protrudes to the indoor side X2 from the middle in the left-right direction of the indoor side end extending plate 3360, a finding direction extending plate 3365 that extends from the end of the midway indoor side protruding plate 3361 on the indoor side X2 to the side of the opening window 2 in the left-right direction, a protrusion 3362 that protrudes to the outdoor side X1 at the end side on the inner peripheral side of the frame body 30 of the blind window 3 of the indoor side end extending plate 3360, and a first intermediate protruding piece 3363 and a second intermediate protruding piece 3364 that are arranged at intervals in the prospective direction in the middle of the prospective direction of the prospective direction extending plate 3351 and protrude to the side of the opening window 2 in the left-right direction.

[0085] A water stop material 3352a is attached to the water stop material arrangement portion 3352, and the water stop material 3352a is pressed against the surface on the side of the blind window 3A in the left-right direction at the end side of the outdoor side X1 of the intermediate member 45 and the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. A pressing edge 334 is attached to the pair of engaging protrusions 3354, 3355.

[0086] The intermediate member 45 is disposed between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A. The intermediate member 45 is formed to extend in the prospective direction.

[0087] As shown in FIG. 8, the intermediate member 45 includes a prospective direction extending plate 4511 extending in the prospective direction, an engaging convex portion 4512 formed at the end of the prospective direction extending plate 4511 on the outdoor side X1, an engaging concave portion 4513 formed on the surface of the fitting window 3A in the left-right direction on the indoor side X2 of the engaging convex portion 4512, an indoor side end extending plate 4517 formed at the end of the prospective direction extending plate 4511 on the indoor side X2 and extending toward the opening window 2 side in the left-right direction, an end indoor side protruding plate 4518 protruding from the end of the indoor side end extending plate 4517 on the opening window 2 side in the left-right direction toward the indoor side X2, an indoor side protruding plate 4519 protruding from the middle of the indoor side end extending plate 4517 in the left-right direction toward the indoor side X2, and an indoor side finding direction protruding plate 4520 protruding from the end of the indoor side protruding plate 4519 on the indoor side X2 toward the fitting window 3A side in the left-right direction.

[0088] A connection structure between the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33A of the fitting window 3A will be described. As shown in FIG. 8, the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A have the intermediate member 45 disposed therebetween, and are fastened and fixed by screws 38, 39 (fastening members) via the intermediate member 45.

[0089] As shown in Fig. 8, in a state where the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33 of the fixed window 3 are connected, the intermediate vertical frame 24 of the opening window 2, the intermediate vertical frame 33 of the fixed window 3, and the intermediate member 45 are formed to extend in the prospective direction. The metal frame 241 of the intermediate vertical frame 24 of the opening window 2, the intermediate member 45, and the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A are arranged side by side from left to right in this order. An elongated hollow portion 40b extending in the prospective direction is formed between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45. An elongated hollow portion 40c extending in the prospective direction is formed between the intermediate member 45 and the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A.

[0090] As shown in Fig. 8, at the outdoor-side X1 end, the engaging convex portion 4512 formed at the outdoor-side X1 end of the intermediate member 45 is hooked and engaged with the L-shaped hooking piece 2412 formed on the outdoor-side X1 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45. On the indoor-side X2, the indoor-side end shoji-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 are arranged to overlap in the prospective direction. In this state, the indoor-side end shoji-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 are fastened together by passing a screw 38 penetrating in the prospective direction from the indoor-side X2 to the outdoor-side X1. Thus, the indoor-side end shoji-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 are fastened and connected by the screw 38.

[0091] In this state, an elongated hollow portion 40b extending in the prospective direction is formed between the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45, and a water stop material 45a is sandwiched and disposed between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the prospective direction extending plate 4511 of the intermediate member 45. Thereby, the water stop material 45a blocks the flow of water in the middle of the prospective direction between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the prospective direction extending plate 4511 of the intermediate member 45, and suppresses the intrusion of water from the outdoor side X1 to the indoor side X2. Therefore, the water stop performance can be improved.

[0092] Also, as shown in FIG. 8, the intermediate member 45 connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A are engaged with each other at the outdoor side X1, where the inclined protrusion 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A is engaged with the engaging recess 4513 formed on the outdoor side X1 of the intermediate member 45. On the indoor side X2, the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A are arranged to overlap in the prospective direction. In this state, the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A are fastened together by passing a screw 39 penetrating in the prospective direction from the indoor side X2 to the outdoor side X1. Thus, the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A are fastened and connected by the screw 39.

[0093] In this state, an elongated hollow portion 40c extending in the prospective direction is formed between the intermediate member 45 and the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A. A water stop material 45b is sandwiched and disposed between the prospective direction extending plate 4511 of the intermediate member 45 and the first intermediate protruding piece 3363 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A. Thereby, the water stop material 45b blocks the flow of water in the middle of the prospective direction between the prospective direction extending plate 4511 of the intermediate member 45 and the first intermediate protruding piece 3363 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A, suppressing the intrusion of water from the outdoor side X1 to the indoor side X2. Therefore, the water stop performance can be improved.

[0094] When the intermediate vertical frame 24 of the opening window 2 and the intermediate vertical frame 33A of the fitting window 3A are connected via the intermediate member 45 with the intermediate member 45 disposed therebetween, the intermediate vertical frame 24 of the opening window 2, the intermediate member 45, and the intermediate vertical frame 33 of the fitting window 3 are formed to extend in the prospective direction and arranged side by side in the left-right direction so that the distance between them becomes closer. Therefore, the width (search width) in the left-right direction can be made small.

[0095] In this embodiment, as shown in FIG. 8, the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 are fixed by screws 38 in a state where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 overlap in the prospective direction on the indoor side X2. On the outdoor side X1, at a position shifted toward the fitting-mortise window 3A side in the left-right direction from the portion fixed by the screws 38 in a state where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 overlap in the prospective direction, an engaging convex portion 4512 formed at the outdoor-side X1 end of the intermediate member 45 is hooked and engaged with an L-shaped hooking piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. As a result, on the outdoor side X1, the engaging convex portion 4512 formed at the outdoor-side X1 end of the intermediate member 45 is hooked and engaged with the L-shaped hooking piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, and the screw fixing portion where the indoor-side end shutter-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor-side end extension plate 4517 of the intermediate member 45 are fixed by screws 38 in a state where they overlap in the prospective direction on the indoor side X2 are arranged on an inclined line inclined and shifted with respect to a line extending in the prospective direction. In this way, in a state where the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 are combined, the engaging portion and the screw fixing portion are arranged on a diagonal line. Therefore, in a state where the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 are combined, the strength of the portion where the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 are combined can be ensured.

[0096] Further, an intermediate member 45 connected to a metal frame 241 of an intermediate vertical frame 24 of the opening window 2 and a metal frame 335 of an intermediate vertical frame 33A of the deadlight window 3A are fixed by screws 39 in a state where a protruding plate 4520 in the finding direction on the indoor side of the intermediate member 45 and an extending plate 3365 in the finding direction of the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A overlap in the prospective direction on the indoor side X2. On the outdoor side X1, at a position shifted toward the opening window 2 in the left - right direction from the portion fixed by the screws 39 in a state where the protruding plate 4520 in the finding direction on the indoor side of the intermediate member 45 and the extending plate 3365 in the finding direction of the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A overlap in the prospective direction, an inclined protrusion 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A is engaged with an engaging recess 4513 formed on the outdoor side X1 of the intermediate member 45. As a result, on the outdoor side X1, an engaging portion where the inclined protrusion 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A is engaged with the engaging recess 4513 formed on the outdoor side X1 of the intermediate member 45, and on the indoor side X2, a fixing portion fixed by the screws 39 in a state where the protruding plate 4520 in the finding direction on the indoor side of the intermediate member 45 and the extending plate 3365 in the finding direction of the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A overlap in the prospective direction, are arranged on an inclined line inclined and shifted with respect to a line extending in the prospective direction. Thus, in a state where the intermediate member 45 and the intermediate vertical frame 33A of the deadlight window 3A are combined, the engaging portion and the screw - fixed portion are arranged diagonally. Thereby, in a state where the intermediate member 45 and the intermediate vertical frame 33A of the deadlight window 3A are combined, the strength of the portion where the intermediate member 45, the intermediate vertical frame 33A of the deadlight window 3A are combined can be ensured.

[0097] As described above, by connecting the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 while ensuring strength, and by connecting the intermediate member 45 connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the metal frame 335 of the intermediate vertical frame 33A of the deadlight window 3A while ensuring strength, the strength of the portion where the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, the intermediate member 45, and the intermediate vertical frame 33A of the deadlight window 3A are connected can be ensured.

[0098] A procedure for connecting the opening window 2 and the fixed window 3A via an intermediate member 45 will be described. When connecting the opening window 2 and the fixed window 3A via the intermediate member 45, as shown in the left and center diagrams of Fig. 9, first, the intermediate member 45 is connected to the metal frame 241 of the intermediate vertical frame 24 on the intermediate side of the opening window 2. When connecting the metal frame 331 of the intermediate vertical frame 33 of the fixed window 3 to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 via the intermediate member 45, as shown in Fig. 8, a resin frame 243 is pre-attached to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, and a resin frame 333 is pre-attached to the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A. In this state, the intermediate member 45 is connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, and the metal frame 335 of the intermediate vertical frame 33A of the fixed window 3A is connected to the intermediate member 45 connected to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. In Fig. 9, the resin frames 243 and 333 are not shown.

[0099] Specifically, as shown in the left diagram of Fig. 9, a waterproof material 45a is attached to the surface of the intermediate member 45 on the side of the opening window 2, and a waterproof material 45b is attached to the surface of the intermediate member 45 on the side of the fixed window 3A. In this state, on the outdoor side X1, the engaging convex portion 4512 formed at the outdoor end of the intermediate member 45 is hooked and engaged with the L-shaped hooking piece 2412 formed on the outdoor side X1 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2. With the indoor portions of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the intermediate member 45 approaching each other, the intermediate member 45 is rotated about the engaging convex portion 4512 formed at the outdoor end of the intermediate member 45 with respect to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, and as shown in the center diagram of Fig. 9, on the indoor side X2, it is moved so that the indoor end shoji-side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor end extension plate 4517 of the intermediate member 45 overlap in the expected direction.

[0100] Thus, in order to rotate and attach the engagement convex portion 4512 formed at the end portion on the outdoor side X1 of the intermediate member 45 with respect to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2, rather than moving and attaching the intermediate member 45 in the expected direction, the waterproofing material 45a is sandwiched between the first intermediate protruding piece 2417 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the expected direction extending plate 4511 of the intermediate member 45 in a non-foldable state, and the intermediate member 45 can be attached to the metal frame 241 of the intermediate vertical frame 24 of the opening window 2.

[0101] Next, as shown in the central view of FIG. 9, with the indoor side end shutter side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor side end extension plate 4517 of the intermediate member 45 overlapped in the expected direction, the screw 38 is passed through from the indoor side X2 toward the outdoor side X1 and tightened together. Thus, as shown in the right view of FIG. 9, the indoor side end shutter side extension plate 2415 of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 and the indoor side end extension plate 4517 of the intermediate member 45 are fastened and connected by the screw 38.

[0102] Subsequently, as shown in the central view of FIG. 9, on the outdoor side X1, the inclined protrusion 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the fitted and killed window 3A is engaged with the engagement recess 4513 formed on the outdoor side X1 of the intermediate member 45. Then, with respect to the intermediate member 45, the fitted and killed window 3A is rotated around the inclined protrusion 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the fitted and killed window 3A so that the portions on the indoor side X2 of the intermediate member 45 and the metal frame 335 of the intermediate vertical frame 33A of the fitted and killed window 3A approach each other. As shown in the central view of FIG. 9, on the indoor side X2, the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fitted and killed window 3A are moved so as to overlap in the expected direction.

[0103] Thus, with respect to the intermediate member 45 connected to the metal frame 241 of the intermediate vertical frame 24 on the intermediate side of the opening window 2, it is rotated about the inclined projection 3353 formed on the outdoor side X1 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A for attachment. Therefore, rather than moving and attaching the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A in the prospective direction, the waterstop material 45b is sandwiched between the prospective direction extending plate 4511 of the intermediate member 45 and the first intermediate protruding piece 3363 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A in a non-foldable state, and the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A can be attached to the intermediate member 45.

[0104] Next, as shown in the right figure of Fig. 9, with the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A overlapped in the prospective direction, the screw 39 is passed through from the indoor side X2 toward the outdoor side X1 and tightened together. As shown in the right figure of Fig. 9, the indoor side finding direction protruding plate 4520 of the intermediate member 45 and the finding direction extending plate 3365 of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A are fastened and connected by the screw 39.

[0105] In this embodiment, the waterstop material 45a is attached to the opening window 2 side of the intermediate member 45 first and the waterstop material 45b is attached to the fitting window 3A side of the intermediate member 45 first, but it is not limited to this. The waterstop material 45a may be attached to the first intermediate protruding piece 2417 side of the metal frame 241 of the intermediate vertical frame 24 of the opening window 2 first, and the waterstop material 45b may be attached to the first intermediate protruding piece 3363 side of the metal frame 335 of the intermediate vertical frame 33A of the fitting window 3A first.

[0106] In the second embodiment, in the connecting structure for connecting the opening window 2 and the fixed window 3A, with an intermediate member 45 disposed between adjacent opening windows 2 and fixed windows 3A, the adjacent opening window 2 and the intermediate member 45 are engaged on the outdoor side X1 and then fastened and connected by a screw 38 on the indoor side X2. At the same time, for the intermediate member 45 and the fixed window 3A, they are engaged on the outdoor side X1 and then fastened and connected by a screw 39 on the indoor side X2. Thereby, in the connecting structure for connecting the opening window 2 and the fixed window 3A, the connecting portion between adjacent opening windows 2 and fixed windows 3A can be made slimmer, improving the design property. Also, since the connecting portion between adjacent opening windows 2 and fixed windows 3A is made slimmer, the area facing the indoor side X2 and the outdoor side X1 can be reduced, thus improving the heat insulation performance.

[0107] Next, a third embodiment will be described. The fitting of the third embodiment is different from the fittings of the first and second embodiments in that the fittings of the first and second embodiments are continuous windows 1, 1A in which a plurality of window portions 2, 3 (3A) are connected and installed in the left - right direction (horizontal direction), while the step window 5 of the third embodiment is a step window in which a plurality of window portions 6, 7, 8 are connected and installed in the up - down direction (vertical direction).

[0108] The step window 5 (fitting) of the third embodiment is housed in an opening 11 formed in the building body 100. As shown in FIG. 10, the step window 5 is a step window in which three window portions are arranged adjacent to each other in the up - down direction (vertical direction) of the finding direction. In the up - down direction of the opening 11 of the building body 100, it includes a horizontal sliding - out window 6 (window portion) disposed in the upper stage, a fixed window 7 (FIX window, window portion) disposed in the middle stage, and a fixed window 8 (FIX window, window portion) disposed in the lower stage. In this embodiment, the horizontal sliding - out window 6 disposed in the upper stage, the fixed window 7 disposed in the middle stage, and the fixed window 8 disposed in the lower stage are arranged in this order from above to below, adjacent to each other.

[0109] The horizontal sliding window 6 arranged in the upper section and the fitting-killing window 7 arranged in the middle section are connected by screwing the lower frames 62 and upper frames 71 (adjacent members, horizontal members) of each other with screws 51 (fastening members) without arranging a connecting member such as a plain surface between the horizontal sliding window 6 in the upper section and the fitting-killing window 7 in the middle section as shown in FIG. 11. The fitting-killing window 7 arranged in the middle section and the fitting-killing window 8 arranged in the lower section are connected by screwing the lower frames 72 and upper frames 81 (adjacent members, horizontal members) of each other with screws 52 (fastening members) without arranging a connecting member such as a plain surface between the fitting-killing window 7 in the middle section and the fitting-killing window 8 in the lower section.

[0110] As shown in FIGS. 10 and 11, the upper horizontal sliding window 6 is housed in the upper section of the opening 11 of the building body 100. The upper horizontal sliding window 6 includes a frame body 60, a rectangular shoji 65 housed in the frame body 60, and a net portion 66 arranged on the indoor side X2 of the shoji 65. The shoji 65 can be opened by pushing the door tip side to the outdoor side X1 and rotating about a rotation axis (not shown) provided on the hanging side of the upper end portion.

[0111] As shown in FIGS. 11 and 12, the frame body 60 is a frame body framed in a rectangle by an upper frame 61, a lower frame 62, and left and right vertical frames 63, 64. The upper frame 61, the lower frame 62, and the left and right vertical frames 63, 64 are composed of metal frames 611, 621, 631, 641 and resin frames 613, 623, 633, 643 connected to the indoor side X2 of the metal frames 611, 621, 631, 641.

[0112] The metal frames 611, 621, 631, 641 are formed of a metal material such as aluminum, for example. More specifically, the metal frames 611, 621, 631, 641 are formed by extrusion molding of an aluminum material. The resin frames 613, 623, 633, 643 are composed of a synthetic resin such as vinyl chloride resin, for example. More specifically, the resin frames 613, 623, 633, 643 are formed by extrusion molding of a synthetic resin such as vinyl chloride resin, for example.

[0113] The metal frame 621 of the lower frame 62 of the horizontal sliding window 6 is fastened and fixed to the metal frame 711 of the upper frame 71 of the fixed window 7 with screws 51. Details of the connection structure for connecting the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the fixed window 7 will be described later.

[0114] As described above, the horizontal sliding window 6 of the stepped window 5 according to the present embodiment is a composite fitting in which the outdoor side X1 is made of metal and the indoor side X2 is made of resin. Since the indoor sides X2 of the metal frames 611, 621, 631, 641 are covered with resin frames 613, 623, 633, 643, the horizontal sliding window 6 of the stepped window 5 has excellent heat insulation properties and condensation is suppressed.

[0115] Further, in the horizontal sliding window 6 of the stepped window 5 according to the present embodiment, since the frame body 60 (upper frame 61, lower frame 62, and left and right vertical frames 63, 64) is configured to have metal frames 611, 621, 631, 641 formed of a metal material, even if ultraviolet rays become stronger due to factors such as global warming, deterioration against ultraviolet rays can be suppressed more effectively than in a resin sash in which the frame body is formed only of resin. Also, since the frame body 60 (upper frame 61, lower frame 62, and left and right vertical frames 63, 64) has metal frames 611, 621, 631, 641 formed of a metal material such as aluminum, it is easier to recycle than a resin sash in which the frame body is formed only of resin.

[0116] As shown in FIGS. 11 and 12, an operator handle 624 is provided on the lower frame 62. By rotating the operator handle 624, a rotational force is transmitted through the handle mechanism 625 to the shoji 65, and the shoji 65 can be opened and closed by rotating about a rotating shaft on the hanging side provided at the upper end portion.

[0117] As shown in FIGS. 11 and 12, the shoji 65 includes an upper frame 651, a lower frame 652, left and right vertical frames 653, 654, a frame body 655 formed in a rectangular frame by these, and a glass 656 fitted and fixed within the frame body 655.

[0118] The glass 656 is formed in a rectangular shape and fitted and fixed into the frame body 655. The glass 656 fitted into the frame body 655 of the shoji 65 is a multilayer glass including a plate glass 656a on the indoor side X2, a plate glass 656b on the outdoor side X1, and a spacer 656c sandwiched between these two plate glasses 656a and 656b at the ends of these two plate glasses 656a and 656b, and has excellent heat insulation properties.

[0119] As shown in FIGS. 10 and 11, the middle fitting window 7 is housed in the middle of the opening 11 of the building body 100. The lower fitting window 8 is housed in the lower part of the opening 11 of the building body 100. The fitting windows 7 and 8 are also referred to as FIX windows.

[0120] As shown in FIGS. 11 and 13, the middle fitting window 7 includes a frame body 70 and a rectangular glass 75 fitted and fixed into the frame body 70.

[0121] As shown in FIG. 11, the glass 75 disposed in the middle fitting window 7 and the glass 656 of the shoji 65 of the upper horizontal sliding window 6 disposed adjacent to the upper side are arranged side by side in the finding direction in a state where at least a part of the expected thickness portions of the glasses 75 and 656 overlap each other when viewed in the finding direction. In this embodiment, the glass surfaces on the outdoor side X1 and the indoor side X2 of the glass 75 disposed in the middle fitting window 7 and the glass surfaces on the outdoor side X1 and the indoor side X2 of the glass 656 of the shoji 65 of the upper horizontal sliding window 6 disposed adjacent to the upper side are not arranged on the same plane (flush), but may be arranged on the same plane (flush). When the glass surfaces are arranged on the same plane (flush), the glass surfaces can be aligned on the same plane, so that the design property can be improved.

[0122] As shown in FIGS. 11 and 13, the frame body 70 is a frame body formed into a rectangle by an upper frame 71, a lower frame 72, and left and right vertical frames 73 and 74. The upper frame 71, the lower frame 72, and the left and right vertical frames 73 and 74 include metal frames 711, 721, 731, and 741, and resin frames 713, 723, 733, and 743 connected to the indoor side X2 of the metal frames 711, 721, 731, and 741.

[0123] The metal frames 711, 721, 731, and 741 are formed of a metal material such as aluminum. More specifically, the metal frames 711, 721, 731, and 741 are formed by extrusion molding of an aluminum material. The resin frames 713, 723, 733, and 743 are composed of a synthetic resin such as vinyl chloride resin. More specifically, the resin frames 713, 723, 733, and 743 are formed by extrusion molding of a synthetic resin such as vinyl chloride resin.

[0124] On the indoor side X2 of the upper frame 71 and the left and right vertical frames 73 and 74, pressing edges 714, 734, and 744 are provided. The pressing edges 714, 734, and 744 press the peripheral edge of the glass 75 via buffer members 714a, 734a, and 744a. Thereby, the peripheral edge of the glass 75 is sandwiched between the resin frames 713, 733, and 743 of the upper frame 71 and the left and right vertical frames 73 and 74 and the pressing edges 714, 734, and 744.

[0125] As shown in FIGS. 10, 11, and 13, the glass 75 is formed into a rectangle and is fitted and fixed to the frame body 30. As shown in FIGS. 11 and 13, the glass 75 is a multilayer glass including a plate glass 751 on the indoor side X2, a plate glass 752 on the outdoor side X1, and a spacer 753 sandwiched between these two plate glasses 751 and 752 at the ends of these two plate glasses 751 and 752, and has excellent heat insulation properties.

[0126] The metal frame 711 of the upper frame 71 of the deadlight window 7 disposed in the middle section is fastened and fixed to the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 disposed in the upper section by screws 51. Details of the connection structure for connecting the metal frame 711 of the upper frame 71 of the deadlight window 7 disposed in the middle section and the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 disposed in the upper section will be described later.

[0127] The metal frame 721 of the lower frame 72 of the deadlight window 7 disposed in the middle section is fastened and fixed to the metal frame 811 of the upper frame 81 of the deadlight window 8 disposed in the lower section by screws 52. Details of the connection structure for connecting the metal frame 721 of the lower frame 72 of the deadlight window 7 and the metal frame 811 of the upper frame 81 of the deadlight window 8 will be described later.

[0128] As described above, the deadlight window 7 in the middle section of the stepped window 5 according to the present embodiment is a composite fitting in which the outdoor side X1 is made of metal and the indoor side X2 is made of resin. Since the indoor sides X2 of the metal frames 711, 721, 731, 741 are covered with resin frames 713, 723, 733, 743, the deadlight window 7 in the middle section of the stepped window 5 has excellent heat insulation properties and condensation is suppressed.

[0129] Further, the deadlight window 7 of the stepped window 5 according to the present embodiment has a frame body 70 (upper frame 71, lower frame 72, and left and right vertical frames 73, 74) configured to have metal frames 711, 721, 731, 741 formed of a metal material. Therefore, even if ultraviolet rays become stronger due to factors such as global warming, deterioration against ultraviolet rays can be suppressed more than that of a resin sash in which the frame body is formed only of resin. Further, since the frame body 70 (upper frame 71, lower frame 72, and left and right vertical frames 73, 74) has metal frames 711, 721, 731, 741 formed of a metal material such as aluminum, it is easier to recycle than a resin sash in which the frame body is formed only of resin.

[0130] As shown in Fig. 11, the lower blind window 8 includes a frame body 80 and a rectangular glass 85 fitted and fixed in the frame body 80. The configuration of the lower blind window 8, except for the upper frame 81 and the lower frame 82, is the same as that of the middle blind window 7. Therefore, for the configuration similar to that of the middle blind window 7, corresponding reference numerals are given and the description thereof is omitted.

[0131] The glass 85 disposed in the lower blind window 8 and the glass 75 disposed in the middle blind window 7 adjacent to the upper side are arranged side by side in the finding direction in a state where at least a part of the expected thickness portions of the glasses 85 and 75 overlap each other when viewed in the finding direction. In the present embodiment, the glass surface on the outdoor side X1 of the glass 85 disposed in the lower blind window 8 and the glass surface on the outdoor side X1 of the glass 75 of the middle blind window 7 disposed adjacent to the upper side are arranged on the same plane. The glass surface on the indoor side X2 of the glass 85 disposed in the lower blind window 8 and the glass surface on the indoor side X2 of the glass 75 of the middle blind window 7 disposed adjacent to the upper side are arranged on the same plane.

[0132] As shown in Figs. 10 and 11, the frame body 80 is a frame body framed in a rectangle by an upper frame 81, a lower frame 82, and left and right vertical frames 83 and 84. As shown in Fig. 11, the upper frame 81 and the lower frame 82 include metal frames 811 and 821 and resin frames 813 and 823 connected to the indoor side X2 of the metal frames 811 and 821.

[0133] The metal frame 811 of the upper frame 81 of the blind window 8 disposed in the lower stage is fastened and fixed to the metal frame 721 of the lower frame 72 of the blind window 7 disposed in the middle stage by screws 52 in the same manner as the configuration of the lower frame 72 of the blind window 7 disposed in the middle stage described above. Details of the connection structure for connecting the metal frame 811 of the upper frame 81 of the blind window 8 disposed in the lower stage and the metal frame 721 of the lower frame 72 of the blind window 7 disposed in the middle stage will be described later.

[0134] Next, a connection structure for connecting the horizontal sliding window 6 arranged in the upper stage and the blocking window 7 arranged in the middle stage will be described. As shown in FIG. 14, in the portion connecting the horizontal sliding window 6 arranged in the upper stage and the blocking window 7 arranged in the middle stage, no connecting members such as plain surfaces are provided, and the upper horizontal sliding window 6 and the middle blocking window 7 are arranged adjacent to each other in the vertical direction. In this state, between the upper horizontal sliding window 6 and the middle blocking window 7, no connecting members such as plain surfaces are arranged, and the lower frame 62 of the upper horizontal sliding window 6 and the upper frame 71 of the middle blocking window 7 adjacent to each window portion of the upper horizontal sliding window 6 and the middle blocking window 7 are fastened and connected by screws 51 (fastening members). Specifically, the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the middle blocking window 7 are fastened and connected by screws 51 (fastening members).

[0135] First, before describing the connection structure for connecting the upper horizontal sliding window 6 and the middle blocking window 7, the configurations of the lower frame 62 of the upper horizontal sliding window 6 and the upper frame 71 of the middle blocking window 7 will be described.

[0136] As shown in FIG. 14, the lower frame 62 of the upper horizontal sliding window 6 has a metal frame 621 extending in the expected direction and a resin frame 623 connected to the end of the metal frame 621 on the indoor side X2.

[0137] As shown in Fig. 14, the metal frame 621 includes a prospective direction extending plate 6211 extending in the prospective direction, a hollow frame 6212 formed at the upper part of the indoor side X2 portion of the prospective direction extending plate 6211 and having a hollow portion 6212a, an upward extending portion 6213 extending upward from the middle of the upper surface of the hollow frame 6212 in the prospective direction, an outdoor side protruding portion 6214 protruding from the upper end portion of the upward extending portion 6213 to the outdoor side X1, an indoor side protruding portion 6215 protruding from the lower end side in the vertical direction of the upward extending portion 6213 to the indoor side X2, an indoor side downward extending portion 6216 (finding surface portion) extending downward from the lower end portion at the end of the indoor side X2 of the hollow frame 6212 and extending in the downward (finding direction), an indoor side side protruding portion 6217 protruding from the middle of the vertical direction of the end of the indoor side X2 of the hollow frame 6212 to the indoor side X2, a water stop material arranging portion 6218 arranged at the upper end of the outdoor side X1 surface of the hollow frame 6212, an outdoor side extending portion 6219 extending in the prospective direction on the outdoor side X1 of the prospective direction extending plate 6211 rather than the hollow frame 6212, a downward protruding portion 6220 protruding downward from the outdoor side X1 portion in the prospective direction of the outdoor side extending portion 6219, an engaging protruding portion 6221 protruding from the lower end portion of the downward protruding portion 6220 to the indoor side X2, a downward inclined piece 6222 extending linearly downward and inclined downward from the lower end portion of the downward protruding portion 6220 to the outdoor side X1, and an L-shaped bent piece 6223 extending downward from the lower end portion of the downward inclined piece 6222 and bending to the indoor side X2.

[0138] A water stop material 6218a is attached to the water stop material arranging portion 6218. When the shoji 65 of the upper horizontal sliding window 6 is in the closed position, the water stop material 6218a is pressed against the indoor side X2 surface of the lower frame 652 of the shoji 65.

[0139] The resin frame 623 is attached above the indoor side X2 of the metal frame 621. The resin frame 623 includes a vertically extending vertically extending portion 6231, an inclined engaging portion 6232 that extends downward and obliquely from the lower end of the vertically extending portion 6231 to the outdoor side X1, an indoor side prospective direction extending portion 6233 that extends from the lower end of the vertically extending portion 6231 to the indoor side X2, an indoor side hollow frame 6234 that extends from the upper end of the vertically extending portion 6231 to the outdoor side X1, an engaging protrusion 6235 that protrudes from the lower end of the lower step formed in the lower portion of the indoor side hollow frame 6234 to the indoor side X2, a net holding member arrangement portion 6236 that is formed on the outdoor side X1 of the indoor side hollow frame 6234 and is open upward, and an outdoor side hollow frame 6237 that is formed on the outdoor side X1 of the net holding member arrangement portion 6236.

[0140] When the resin frame 623 is attached to the upper part of the indoor side X2 of the metal frame 621, the inclined engaging portion 6232 engages with the indoor side protruding portion 6215 of the metal frame 621. The engaging protrusion 6235 engages with the outdoor side protruding portion 6214 of the metal frame 621. The net holding portion 661 of the net portion 66 is arranged in the net holding member arrangement portion 6236.

[0141] As shown in FIG. 14, the upper frame 71 of the middle-stage caulking window 7 has a metal frame 711 that extends in the prospective direction and a resin frame 713 that is connected to the end of the indoor side X2 of the metal frame 711.

[0142] As shown in FIG. 14, the metal frame 711 includes a prospective direction extending plate 7111 extending in the prospective direction, a hollow frame 7112 having a hollow portion 7112a formed at the upper part of the portion on the indoor side X2 of the prospective direction extending plate 7111 and extending in the prospective direction, a hook piece 7113 protruding upward from the upper surface of the end side on the outdoor side X1 of the prospective direction extending plate 7111 and opening toward the outdoor side X1, a pair of lower engaging protrusions 7114, 7115 arranged at intervals in the prospective direction on the lower surface of the prospective direction extending plate 7111 on the outdoor side X1 and protruding downward, an intermediate lower protruding portion 7116 protruding downward in the middle of the prospective direction of the prospective direction extending plate 7111 and having a U-shaped open portion 7116a at the tip, an indoor side end lower extending plate 7117 extending downward from the end of the indoor side X2 of the prospective direction extending plate 7111, an outdoor side extending portion 7118 protruding into the indoor side X2 from the upper side portion of the indoor side end lower extending plate 7117, a protrusion 7119 protruding into the outdoor side X1 at the lower end side of the indoor side end lower extending plate 7117, and an indoor side end upper extending plate 7120 (search surface portion) formed at the end of the indoor side X2 of the prospective direction extending plate 7111 and extending upward and extending in the search direction.

[0143] An edge 714 is attached to the pair of lower engaging protrusions 7114, 7115.

[0144] The resin frame 713 is attached downward at the end of the indoor side X2 of the metal frame 711. The resin frame 713 is composed of a hollow structure having a plurality of hollow portions. The resin frame 713 includes a main body frame 7131 having three hollow portions 7131a arranged side by side in the prospective direction, an outdoor side upper protrusion 7132 protruding upward at the end side on the outdoor side X1 of the main body frame 7131, an extending plate 7133 extending into the indoor side X2 from the lower end of the end of the indoor side X2 of the main body frame 7131, and an indoor side upper protrusion 7134 protruding upward at the end side on the indoor side X2 of the main body frame 7131.

[0145] The upper outdoor protrusion 7132 of the resin frame 713 engages with an engaging protrusion 7116b formed in a U-shaped opening 7116a of the lower middle protrusion 7116 of the metal frame 711. The upper indoor protrusion 7134 of the resin frame 713 engages with a protrusion 7119 formed on an extension plate 7117 below the indoor end of the metal frame 711. A waterproof material 7131b is provided at the end of the outdoor side X1 of the main body frame 7131. The waterproof material 7131b is pressed by the resin frame 713 toward the surface of the outdoor side X1 on the upper end side of the glass 75.

[0146] Next, a connection structure for connecting the lower frame 62 of the upper horizontal sliding window 6 and the upper frame 71 of the middle concealed window 7 will be described. As shown in FIG. 14, the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the concealed window 7 are fastened and fixed by screws 51 (fastening members) in a state where they are engaged with each other.

[0147] As shown in FIG. 14, in a state where the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the concealed window 7 are connected, the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the concealed window 7 are formed to extend in the prospective direction and are arranged side by side in the vertical direction without passing through a connecting member such as a seamless joint. No connecting member such as a seamless joint is arranged between the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the concealed window 7, and an elongated hollow portion 50a extending in the prospective direction is formed.

[0148] As shown in FIG. 14, the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 are engaged on the outdoor side X1. The hook piece 7113 formed on the outdoor side X1 of the metal frame 711 of the upper frame 71 of the blind window 7 is hooked and engaged with the engaging protrusion 6221 formed on the outdoor side X1 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6. On the indoor side X2, the indoor-side lower extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 overlap in the prospective direction and are arranged. In this state, the indoor-side lower extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 are fastened together by passing a screw 51 penetrating in the prospective direction from the indoor side X2 to the outdoor side X1. Thus, the indoor-side lower extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 are fastened and connected by the screw 51.

[0149] In this state, an elongated hollow portion 50a extending in the prospective direction is formed between the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7.

[0150] In the state where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are connected, the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are formed to extend in the prospective direction and are arranged side by side in the left-right direction so that the distance between them becomes closer. Therefore, compared with the case where a connecting member such as a blind is used, the width (search width) in the vertical direction can be made smaller.

[0151] In this embodiment, as shown in FIG. 14, on the indoor side X2, the lower indoor extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the upper indoor extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 overlap in the prospective direction and are fixed by screws 51. On the outdoor side X1, at a position shifted toward the blind window 7 from the portion fixed by the screws 51 in a state where the lower indoor extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the upper indoor extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 overlap in the prospective direction, a hook piece 7113 formed on the outdoor side X1 of the metal frame 711 of the upper frame 71 of the blind window 7 is hooked and engaged with an engaging protrusion 6221 formed on the outdoor side X1 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6. As a result, on the outdoor side X1, the engaging portion where the hook piece 7113 formed on the outdoor side X1 of the metal frame 711 of the upper frame 71 of the blind window 7 is hooked and engaged with the engaging protrusion 6221 formed on the outdoor side X1 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6, and the screw fixing portion where the lower indoor extension 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the upper indoor extension plate 7120 of the metal frame 711 of the upper frame 71 of the blind window 7 overlap in the prospective direction and are fixed by screws 51 are arranged on an inclined line inclined and shifted with respect to a line extending in the prospective direction. Thus, in a state where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are combined, the engaging portion and the screw fixing portion are arranged diagonally. Therefore, in a state where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are combined, even without a pattern, the strength of the portion where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are combined can be ensured.

[0152] As shown in FIG. 14, in a state where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are connected, a resin cover material 9 is detachably attached to the indoor surface of the end portion on the indoor side X2 of the portion where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are connected.

[0153] The resin cover member 9 has a width in the vertical direction and extends in the left - right direction. The resin cover member 9 is disposed so as to straddle a portion connecting the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the fitting - out window 7 in the vertical direction.

[0154] The resin cover member 9 is disposed so as to cover the surface on the indoor side X2 of the connecting portion connecting the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the fitting - out window 7. The size of the width of the resin cover member 9 in the vertical direction is formed to be equal to or larger than the width in the vertical direction of the connecting portion connecting the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the fitting - out window 7. In the present embodiment, the size of the width of the resin cover member 9 in the vertical direction is formed to be the same as the size of the width in the vertical direction of the connecting portion connecting the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the fitting - out window 7.

[0155] The prospective surface 9a of the upper end portion of the resin cover member 9 is disposed on the same plane as the prospective surface 6233a of the indoor - side prospective - direction extension portion 6233 of the resin frame 623 of the lower frame 62 of the horizontal sliding window 6, and the prospective surface 9b of the lower end portion of the resin cover member 9 is disposed on the same plane as the prospective surface 7133a of the extension plate 7133 of the resin frame 713 of the upper frame 71 of the fitting - out window 7.

[0156] The resin cover member 9 has a U - shaped frame portion 91 formed by five hollow portions 91a, and a pair of end - regulating hollow portions 92 formed at the upper end portion and the lower end portion of the end portion on the indoor side X2 of the U - shaped frame portion 91. The U - shaped frame portion 91 is formed in a U - shaped cross - section view in which the indoor side X2 is closed and the outdoor side X1 is open. A pair of engaging protrusions 93 are formed at the open - side ends of a pair of inner surfaces 91b formed on the inner side in the vertical direction on the open side of the U - shaped frame portion 91. On the upper surface 91c and the lower surface 91d in the vertical direction on the open side of the U - shaped frame portion 91, the indoor - side prospective - direction extension portion 6233 of the resin frame 623 of the lower frame 62 of the horizontal sliding window 6 is screwed to the upper surface 91c, and the extension plate 7133 of the resin frame 713 of the upper frame 71 of the fitting - out window 7 is screwed to the lower surface 91d.

[0157] When attaching the resin cover material 9 to the indoor side X2 of the connecting portion where the lower frame 62 of the horizontal sliding window 6 and the upper frame 71 of the blind window 7 are connected, insert the hollow portion 91a at the upper part of the open side of the U-shaped frame portion 91 of the resin cover material 9 between the indoor side projected portion 6233 of the resin frame 623 of the lower frame 62 of the horizontal sliding window 6 and the indoor side lateral protruding portion 6217 of the metal frame 621, and insert the hollow portion 91a at the lower part of the open side of the U-shaped frame portion 91 of the resin cover material 9 between the extended plate 7133 of the resin frame 713 of the upper frame 71 of the blind window 7 and the outdoor side extended portion 7118 of the metal frame 711 to attach it.

[0158] In the state where the resin cover material 9 is attached, among the pair of end restricting hollow portions 92, the surface on the outdoor side X1 of the upper end restricting hollow portion 92 abuts against the indoor side X2 end face of the indoor side projected portion 6233 of the resin frame 623 of the lower frame 62 of the horizontal sliding window 6, and the surface on the outdoor side X1 of the lower end restricting hollow portion 92 abuts against the indoor side X2 end face of the extended plate 7133 of the resin frame 713 of the upper frame 71 of the blind window 7. Then, with the hollow portion 91a on the upper side of the open side of the U-shaped frame portion 91 of the resin cover material 9 disposed between the indoor side projected portion 6233 of the resin frame 623 of the lower frame 62 of the horizontal sliding window 6 and the indoor side lateral protruding portion 6217 of the metal frame 621, the indoor side lateral protruding portion 6217 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 engages with the upper engaging protrusion 93, and with the hollow portion 91a on the lower side of the open side of the U-shaped frame portion 91 of the resin cover material 9 disposed between the extended plate 7133 of the resin frame 713 of the upper frame 71 of the blind window 7 and the outdoor side extended portion 7118 of the metal frame 711, the outdoor side extended portion 7118 of the metal frame 711 of the upper frame 71 of the blind window 7 engages with the lower engaging protrusion 93.

[0159] Next, the procedure for connecting the upper horizontal sliding window 6 and the middle fitting window 7 will be described. When connecting the upper horizontal sliding window 6 and the middle fitting window 7, as shown in the left figure of Fig. 15, first, connect the metal frame 711 of the upper frame 71 of the middle fitting window 7 to the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6. When connecting the metal frame 711 of the upper frame 71 of the middle fitting window 7 to the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6, as shown in Fig. 14, a resin frame 623 is pre-attached to the end of the indoor side X2 of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6, and a resin frame 713 is pre-attached to the end of the indoor side X2 of the metal frame 711 of the upper frame 71 of the middle fitting window 7. Then, connect the metal frame 711 of the upper frame 71 of the middle fitting window 7 to the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6. In Fig. 15, the resin frames 623 and 713 are not shown.

[0160] Specifically, as shown in the left figure of Fig. 15, without arranging a connecting member such as a joint between the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the middle fitting window 7, on the outdoor side X1, the hook piece 7113 formed on the outdoor side X1 of the metal frame 711 of the upper frame 71 of the middle fitting window 7 is hooked and engaged with the engaging protrusion 6221 formed on the outdoor side X1 of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6. In this engaged state, the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the middle fitting window 7 are rotated around the hook piece 7113 formed on the outdoor side X1 of the metal frame 711 of the upper frame 71 of the middle fitting window 7 so that the parts on the indoor side X2 of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the middle fitting window 7 approach each other. Then, as shown in the right figure of Fig. 15, on the indoor side X2, the downward extension 6216 on the indoor side of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the upward extension plate 7120 on the indoor side end of the metal frame 711 of the upper frame 71 of the middle fitting window 7 are moved so as to overlap in the expected direction.

[0161] Next, as shown in the right diagram of Fig. 15, with the indoor-side lower extension 6216 of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the middle deadening window 7 overlapped in the viewing direction, a screw 51 is passed through from the indoor side X2 toward the outdoor side X1 and tightened together. As shown in the right diagram of Fig. 15, the indoor-side lower extension 6216 of the metal frame 621 of the lower frame 62 of the upper horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the middle deadening window 7 are fastened and connected by the screw 51. Thereby, even without using a connecting member such as a blind joint, the upper horizontal sliding window 6 and the middle deadening window 7 can be connected.

[0162] Next, a connecting structure for connecting the deadening window 7 disposed in the middle stage and the deadening window 8 disposed in the lower stage will be described. As shown in Fig. 16, in the portion connecting the deadening window 7 disposed in the middle stage and the deadening window 8 disposed in the lower stage, similar to the portion connecting the horizontal sliding window 6 disposed in the upper stage and the deadening window 7 disposed in the middle stage described above, no connecting member such as a blind joint is provided, and the deadening window 7 in the middle stage and the deadening window 8 in the lower stage are arranged adjacent to each other in the vertical direction. In this state, between the deadening window 7 in the middle stage and the deadening window 8 in the lower stage, no connecting member such as a blind joint is disposed, and the lower frame 72 of the deadening window 7 in the middle stage and the upper frame 81 of the deadening window 8 in the lower stage adjacent to each window portion of the deadening window 7 in the middle stage and the deadening window 8 in the lower stage are fastened and connected by a screw 52 (fastening member). Specifically, the metal frame 721 of the lower frame 72 of the deadening window 7 in the middle stage and the metal frame 811 of the upper frame 81 of the deadening window 8 in the lower stage are fastened and connected by a screw 52 (fastening member).

[0163] First, before describing the connecting structure for connecting the upper horizontal sliding window 6 and the middle deadening window 7, the configurations of the lower frame 72 of the middle deadening window 7 and the upper frame 81 of the lower deadening window 8 will be described.

[0164] As shown in FIG. 16, the lower frame 72 of the middle flush window 7 has a metal frame 721 extending in the prospective direction and a resin frame 723 connected to the end of the metal frame 721 on the indoor side X2.

[0165] As shown in FIG. 16, the metal frame 721 has a prospective direction extending plate 7211 extending in the prospective direction, a hollow frame 7212 formed on the upper part of the indoor side X2 portion of the prospective direction extending plate 7211 and having a hollow portion 7212a, an outdoor side upper protruding portion 7213 protruding upward from the upper surface of the end of the hollow frame 7212 on the outdoor side X1 and having a U-shaped open portion 7213a at the tip, an indoor side upper protruding portion 7214 formed by protruding upward from the upper surface of the end of the hollow frame 7212 on the indoor side X2, a protrusion 7215 protruding toward the outdoor side X1 on the upper end side of the indoor side upper protruding portion 7214, an indoor side lower extending portion 7216 (searching portion) extending downward from the lower end and extending in the searching direction at the end of the hollow frame 7212 on the indoor side X2, an indoor side side protruding portion 7217 protruding toward the indoor side X2 from the middle in the vertical direction of the end of the hollow frame 7212 on the indoor side X2, an outdoor side end upper extending portion 7218 extending upward from the end of the prospective direction extending plate 7211 on the outdoor side X1, an L-shaped hook piece 7219 protruding downward in the middle of the prospective direction of the prospective direction extending plate 7211 and opening toward the indoor side X2, a lower protruding portion 7220 protruding downward from the portion on the outdoor side X1 of the L-shaped hook piece 7219 in the middle of the prospective direction of the prospective direction extending plate 7211, an extending portion 7221 extending from the lower end of the lower protruding portion 7220 toward the outdoor side X1, and a downward inclined portion 7222 extending linearly with a downward inclination from the end of the extending portion 7221 on the outdoor side X1.

[0166] A protruding portion 7218a protruding toward the indoor side X2 is formed at the upper end of the outdoor side end upper extending portion 7218, and a water stop material 7218b is attached to the tip of the protruding portion 7218a. The water stop material 7218b is pressed against the surface of the outdoor side X1 on the lower end side of the glass 75 by the outdoor side end upper extending portion 7218.

[0167] The resin frame 723 is attached above the indoor side X2 of the metal frame 721. The resin frame 723 is composed of a hollow structure having a plurality of hollow parts. The resin frame 723 includes a main body frame 7231 having three hollow parts 7231a arranged side by side in the prospective direction, an outdoor-side lower protrusion 7232 protruding downward at the end side of the outdoor side X1 of the main body frame 7231, an extension plate 7233 extending from the upper end of the end of the indoor side X2 of the main body frame 7231 to the indoor side X2, and an indoor-side lower protrusion 7234 protruding downward at the end side of the indoor side X2 of the main body frame 7231.

[0168] The outdoor-side lower protrusion 7232 of the resin frame 723 engages with an engagement protrusion 7213b formed in a U-shaped open portion 7213a of the outdoor-side upper protrusion 7213 of the metal frame 721. The indoor-side lower protrusion 7234 of the resin frame 723 engages with a protrusion 7215 formed in the indoor-side upper protrusion 7214 of the metal frame 721. A waterproof material 7231b is provided at the end of the outdoor side X1 of the main body frame 7231. The waterproof material 7231b is pressed against the surface of the outdoor side X1 on the lower end side of the glass 75 by the resin frame 723.

[0169] As shown in FIG. 16, the upper frame 81 of the lower blind window 8 has a metal frame 811 extending in the prospective direction and a resin frame 813 connected to the end of the indoor side X2 of the metal frame 811.

[0170] As shown in FIG. 16, the metal frame 811 includes a prospective direction extending plate 8111 extending in the prospective direction, a hollow frame 8112 formed at the upper part of the indoor side X2 portion of the prospective direction extending plate 8111 and having a hollow portion 8112a extending in the prospective direction, a pair of lower engaging protrusions 8114 and 8115 spaced apart in the prospective direction and protruding downward on the lower surface of the outdoor side X1 of the prospective direction extending plate 8111, an intermediate lower protruding portion 8116 protruding downward in the middle of the prospective direction of the prospective direction extending plate 8111 and having a U-shaped open portion 8116a at the tip, an indoor side end lower extending plate 8117 extending downward from the end of the indoor side X2 of the prospective direction extending plate 8111, an outdoor side extending portion 8118 protruding into the indoor side X2 from the upper side portion of the indoor side end lower extending plate 8117, a protrusion 8119 protruding into the outdoor side X1 at the lower end side of the indoor side end lower extending plate 8117, an indoor side end upper extending plate 8120 (searching surface portion) formed at the end of the indoor side X2 of the prospective direction extending plate 8111 and extending upward in the left-right direction and extending in the searching direction, and an upward inclined protruding portion 8221 protruding upward and inclined from the upper surface of the end of the outdoor side X1 of the hollow frame 8112 into the outdoor side X1.

[0171] An edge 814 is attached to the pair of lower engaging protrusions 8114 and 8115.

[0172] The resin frame 813 is attached downward at the end of the indoor side X2 of the metal frame 811. The resin frame 813 is composed of a hollow structure having a plurality of hollow portions. The resin frame 813 includes a main body frame 8131 having three hollow portions 8131a arranged side by side in the prospective direction, an outdoor side upper protrusion 8132 protruding upward at the end side of the outdoor side X1 of the main body frame 8131, an extending plate 8133 extending into the indoor side X2 from the lower end of the end of the indoor side X2 of the main body frame 8131, and an indoor side upper protrusion 8134 protruding upward at the end side of the indoor side X2 of the main body frame 8131.

[0173] The outdoor upper protrusion 8132 of the resin frame 813 engages with the engaging protrusion 8116b formed in the U-shaped opening 8116a of the middle lower protrusion 8116 of the metal frame 811. The indoor upper protrusion 8134 of the resin frame 813 engages with the protrusion 8119 formed on the indoor side end lower extension plate 8117 of the metal frame 811. A waterproofing material 8131b is provided at the end of the outdoor side X1 of the main body frame 8131. The waterproofing material 8131b is pressed against the surface of the outdoor side X1 of the upper end side of the glass 85 by the resin frame 813.

[0174] Next, a connection structure for connecting the lower frame 72 of the middle-stage blind window 7 and the upper frame 81 of the lower-stage blind window 8 will be described. As shown in FIG. 16, the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 are fastened and fixed by screws 52 (fastening members) in a state where they are engaged with each other.

[0175] As shown in FIG. 16, in a state where the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 are connected, the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 extend in the prospective direction and are arranged side by side in the vertical direction without passing through a connecting member such as a joint. No connecting member such as a joint is arranged between the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8, and an elongated hollow portion 50b extending in the prospective direction is formed.

[0176] As shown in FIG. 16, the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7 and the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8 are such that, on the outdoor side X1, an upwardly inclined protruding portion 8221 formed in the middle in the expected direction of the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8 is hooked and engaged with an L-shaped hooking piece 7219 formed in the middle in the expected direction of the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7. On the indoor side X2, the indoor-side lower extension portion 7216 of the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7 and the indoor-side end upper extension plate 8120 of the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8 are arranged overlapping each other in the expected direction. In this state, the indoor-side lower extension portion 7216 of the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7 and the indoor-side end upper extension plate 8120 of the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8 are fastened and connected by a screw 52 passed through from the indoor side X2 to the outdoor side X1 in the expected direction, so that the indoor-side lower extension portion 7216 of the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7 and the indoor-side end upper extension plate 8120 of the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8 are fastened and connected by the screw 52.

[0177] In this state, an elongated hollow portion 50b extending in the expected direction is formed between the metal frame 721 of the lower frame 72 of the middle-stage deadlight window 7 and the metal frame 811 of the upper frame 81 of the lower-stage deadlight window 8.

[0178] In the state where the lower frame 72 of the middle-stage deadlight window 7 and the upper frame 81 of the lower-stage deadlight window 8 are connected, the lower frame 72 of the middle-stage deadlight window 7 and the upper frame 81 of the lower-stage deadlight window 8 are formed to extend in the expected direction and are arranged side by side in the left-right direction so that the distance between them becomes closer. Therefore, compared with the case where a connecting member such as a blind is used, the width (search width) in the vertical direction can be made smaller.

[0179] In this embodiment, as shown in FIG. 16, on the indoor side X2, the downward extension portion 7216 on the indoor side of the metal frame 721 of the lower frame 72 of the middle fitting window 7 and the upward extension plate 8120 on the upper end of the indoor side of the metal frame 811 of the upper frame 81 of the lower fitting window 8 overlap in the prospective direction and are fixed by screws 52. On the outdoor side X1, the upwardly inclined protruding portion 8221 formed in the middle in the prospective direction of the metal frame 811 of the upper frame 81 of the lower fitting window 8 is hooked and engaged with the L-shaped hook piece 7219 formed in the middle in the prospective direction of the metal frame 721 of the lower frame 72 of the middle fitting window 7. Thereby, in a state where the lower frame 72 of the middle fitting window 7 and the upper frame 81 of the lower fitting window 8 are combined, even without a blind, the strength of the portion where the lower frame 72 of the middle fitting window 7 and the upper frame 81 of the lower fitting window 8 are combined can be ensured.

[0180] As shown in FIG. 16, in a state where the lower frame 72 of the middle fitting window 7 and the upper frame 81 of the lower fitting window 8 are connected, a resin cover material 9 is detachably attached to the surface of the indoor side X2 at the end of the indoor side X2 of the portion where the lower frame 72 of the middle fitting window 7 and the upper frame 81 of the lower fitting window 8 are connected. The resin cover material 9 has the same configuration as the resin cover material 9 provided on the surface of the indoor side X2 at the end of the indoor side X2 of the portion where the lower frame 62 of the upper horizontal sliding window 6 shown in FIG. 14 and the upper frame 71 of the fitting window 7 are connected. Therefore, the description is omitted by referring to the above description.

[0181] Next, the procedure for connecting the middle-stage blind window 7 and the lower-stage blind window 8 will be described. When connecting the middle-stage blind window 7 and the lower-stage blind window 8, as shown in the left diagram of Fig. 17, first, connect the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 to the metal frame 721 of the lower frame 72 of the middle-stage blind window 7. When connecting the lower frame 72 of the middle-stage blind window 7 and the upper frame 81 of the lower-stage blind window 8, as shown in Fig. 16, a resin frame 723 is pre-attached to the end of the metal frame 721 on the indoor side X2 of the lower frame 72 of the middle-stage blind window 7, and a resin frame 813 is pre-attached to the end of the metal frame 811 on the indoor side X2 of the upper frame 81 of the lower-stage blind window 8. Then, connect the lower frame 72 of the middle-stage blind window 7 and the upper frame 81 of the lower-stage blind window 8. In Fig. 17, the resin frames 723 and 813 are not shown.

[0182] Specifically, as shown in the left diagram of Fig. 17, without arranging a connecting member such as a joint between the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8, on the outdoor side X1, hook the upwardly inclined protruding portion 8221 of the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 on the L-shaped hook piece 7219 of the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and engage them. Then, with respect to the metal frame 721 of the lower frame 72 of the middle-stage blind window 7, rotate the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 around the upwardly inclined protruding portion 8221 of the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 so that the portions on the indoor side X2 of the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 approach each other, and move them as shown in the right diagram of Fig. 17 so that the downward extension portion 7216 on the indoor side of the metal frame 721 of the lower frame 72 of the middle-stage blind window 7 and the upward extension plate 8120 at the end on the indoor side of the metal frame 811 of the upper frame 81 of the lower-stage blind window 8 overlap in the expected direction.

[0183] Next, as shown in the right figure of Fig. 17, with the indoor-side lower extension 7216 of the metal frame 721 of the lower frame 72 of the middle-layer blind window 7 and the indoor-side end upper extension plate 8120 of the metal frame 811 of the upper frame 81 of the lower-layer blind window 8 overlapped in the prospective direction, screw 52 is passed through from the indoor side X2 toward the outdoor side X1 and tightened together. Thus, as shown in the right figure of Fig. 17, the indoor-side lower extension 7216 of the metal frame 721 of the lower frame 72 of the middle-layer blind window 7 and the indoor-side end upper extension plate 8120 of the metal frame 811 of the upper frame 81 of the lower-layer blind window 8 are fastened and connected by screw 52. Thereby, even without using a connecting member such as a blind, the middle-layer blind window 7 and the lower-layer blind window 8 can be connected.

[0184] The stepped window 5 of the third embodiment has the following effects. In the stepped window 5 of the present embodiment, no connecting member is arranged between the adjacent upper-layer horizontal sliding window 6 and the middle-layer blind window 7, and the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 adjacent to each window part in the adjacent upper-layer horizontal sliding window 6 and the middle-layer blind window 7 are fastened and connected by screw 51.

[0185] Thereby, since the connecting member can be eliminated between the adjacent upper-layer horizontal sliding window 6 and the middle-layer blind window 7, the connecting part of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 can be made slimmer, and the design property can be improved. Also, since the connecting member can be eliminated between the adjacent upper-layer horizontal sliding window 6 and the middle-layer blind window 7, the cost required for the connecting member can be reduced. Further, since the connecting member can be eliminated between the adjacent upper-layer horizontal sliding window 6 and the middle-layer blind window 7, the connecting part of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 can be made slimmer, and the area facing the indoor side X2 and the outdoor side X1 can be reduced, so that the heat insulation performance can be improved.

[0186] In this embodiment, the upper horizontal sliding window 6 and the middle deadening window 7 are connected by fastening the lower frames 62 and the upper frames 71 thereof to each other with screws 51. As a result, since they can be fastened and connected by screwing with the screws 51, while ensuring the connection strength, it is possible to slim down the connection portion of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the deadening window 7.

[0187] In this embodiment, the indoor-side lower extension portion 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the deadening window 7 are overlapped and connected in the prospective direction. As a result, by overlapping and connecting the indoor-side lower extension portion 6216 of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the indoor-side end upper extension plate 7120 of the metal frame 711 of the upper frame 71 of the deadening window 7 extending in the finding direction in the prospective direction, while improving the strength in the prospective direction (e.g., wind pressure resistance strength), by overlapping in the prospective direction, the finding width (width in the left-right direction) can be reduced and slimmed down.

[0188] In this embodiment, a hollow portion 50a extending in the prospective direction is formed between the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the deadening window 7, and the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the deadening window 7 engage with each other on the outdoor side X1. As a result, after slimming down the connection portion of the metal frame 621 of the lower frame 62 of the horizontal sliding window 6 and the metal frame 711 of the upper frame 71 of the deadening window 7, it is possible to secure the strength corresponding to the slimmed-down portion.

[0189] In this embodiment, the frame body 60 of the horizontal sliding window 6 and the frame body 70 of the deadening window 7 each have at least a metal frame formed of a metal material. As a result, since the horizontal sliding window 6 and the deadening window 7 are composed of metal sashes, deterioration due to ultraviolet rays and the like can be suppressed as compared with resin sashes in which the entire frame body is formed of a resin material.

[0190] In this embodiment, the types of the frame body 70 window parts of the adjacent side-sliding window 6 and the blind window 7 are different. The glass 75 arranged in the blind window 7 and the glass 656 of the shoji 65 of the adjacent side-sliding window 6 are arranged side by side in the finding direction in a state where at least a part of the thickness portions in the expected direction of the mutual glasses 75 and 656 overlap when viewed in the finding direction. Conventionally, for example, when a side-sliding window and a blind window are arranged adjacent to each other, considering the heat insulation performance, the glass of the blind window is arranged closer to the indoor side. On the other hand, in the present disclosure, as a result of improving the heat insulation performance by slimming the connecting portion of the metal frame 621 of the lower frame 62 of the side-sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7, the glass 75 arranged in the blind window 7 can be moved to the outdoor side, and it is possible to realize arranging them side by side in the finding direction in a state where at least a part of the thickness portions in the expected direction of the mutual glasses 75 and 656 overlap when viewed in the finding direction, so that the design property can be improved.

[0191] In the construction method of the stepped window 5 of this embodiment, without arranging a connecting member between the adjacent side-sliding window 6 and the blind window 7, the metal frame 621 of the lower frame 62 of the adjacent side-sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 are fastened and connected to the metal frame 241 of the intermediate vertical frame 24 and the metal frame 331 of the intermediate vertical frame 33 of the blind window 3 by screws 51 at each window part of the adjacent side-sliding window 6 and the blind window 7. Thereby, the labor of fixing the metal frame 621 of the lower frame 62 of the adjacent side-sliding window 6 and the metal frame 711 of the upper frame 71 of the blind window 7 to a connecting member such as a seamless one is reduced, and the assembly man-hours can be reduced.

[0192] As described above, one embodiment of the fitting of the present disclosure has been described, but the fitting of the present disclosure can be appropriately changed.

[0193] For example, in the above embodiment, the frame body is constituted by an aluminum-resin composite sash including a metal frame and a resin frame, but it is not limited thereto. The frame body may be constituted by a metal sash constituted only of a metal material such as aluminum.

Explanation of reference numerals

[0194] 1. Continuous window (fitting), 2. Hinged window (window part, one window part), 3. Fixed window (window part, the other window part), 5. Tiered window (fitting), 6. Horizontal sliding window (window part), 7. Fixed window (window part), 8. Fixed window (window part), 24. Intermediate side vertical frame (one side member, adjacent member), 33. Intermediate side vertical frame (the other side member, adjacent member), 35. Glass, 36. Waterproofing material, 37. Screw (fastening member), 51. Screw (fastening member), 52. Screw (fastening member), 62. Lower frame (one side member, adjacent member), 71. Upper frame (the other side member, adjacent member), 75. Glass, 256. Glass, 656. Glass, 2411. Anticipated direction extending plate (one side anticipated surface part), 2415. Indoor side end shoji side extending plate (finding surface part), 2417. First intermediate protruding piece (one side protruding part), 3311. Anticipated direction extending plate (the other side anticipated surface part), 3317. Indoor side end extending plate (finding surface part), 3323. First intermediate protruding piece (the other side protruding part), 6216. Indoor side lower extending part (finding surface part), 7216. Indoor side lower extending part (finding surface part), 7120. Indoor side end upper extending plate (finding surface part), 8120. Indoor side end upper extending plate (finding surface part)

Claims

1. Comprising a plurality of window portions arranged side by side adjacent to each other, A building fitting in which a connecting member is not arranged between adjacent window portions among the plurality of window portions, and members adjacent to each other in the adjacent window portions are fastened and connected by a fastening member.

2. The building fitting according to claim 1, wherein the members adjacent to each other in each adjacent window portion are connected by being fastened with screws.

3. The members adjacent to each other in each adjacent window portion each have a finding surface extending in the finding direction on the indoor side, The building fitting according to claim 1 or 2, wherein the adjacent finding surfaces of the adjacent members overlap and are connected in the prospective direction.

4. The adjacent window portions are constituted by one window portion and the other window portion, The adjacent members are constituted by one side member provided on one window portion and the other side member provided on the other window portion and arranged adjacent to the one side member, The one side member has a one side prospective surface arranged opposite to an end portion of the glass provided on the one window portion and extending in the prospective direction, and a one side protruding portion protruding from the one side prospective surface toward the other side member side, The other side member has a other side prospective surface arranged opposite to an end portion of the glass provided on the other window portion and extending in the prospective direction, and a other side protruding portion protruding from the other side prospective surface toward the one side member side, The building fitting according to claim 1 or 2, further comprising a water stop material arranged between and sandwiched by the one side protruding portion and the other side protruding portion.

5. The building fitting according to claim 1 or 2, wherein the frame bodies of the plurality of window portions at least have a metal frame formed of a metal material.

6. The adjacent window portions have different types of window portions, The building fitting according to claim 1 or 2, wherein the adjacent glasses arranged in the adjacent window portions are arranged side by side in the finding direction in a state where at least a part of the prospective thickness portions of the glasses of each other overlap when viewed in the finding direction.

7. The adjacent window portions have different types of window portions, The building fitting according to claim 1 or 2, wherein at least one of the glass surfaces on the outdoor side or the indoor side of the adjacent glasses arranged in the adjacent window portions are arranged on the same plane.

8. A construction method of a building fitting for connecting a plurality of window portions arranged side by side adjacent to each other, A method for installing a fitting, wherein fastening members are used to fasten and connect the members adjacent to each other in the adjacent window portions without arranging a connecting member between the adjacent window portions among the plurality of window portions.

9. A waterstop material is arranged between the adjacent members, When connecting the members adjacent to each other in the adjacent window portions, the other member among the adjacent members is rotated and fixed in a state of being engaged with one member among the adjacent members. The method for installing a fitting according to claim 8.

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