Fitting

Abstract

To ensure wind pressure resistance and enlarge an opening.SOLUTION: A fitting is constituted by connecting frame bodies 10A, 10C, which have panels 24, P2 disposed inside, so as to be in parallel to each other. A batten 25 for supporting an edge part of a surface facing outdoor side of the panel 24 and inner periphery-side edge parts 25a, 23b of a stile 23 are each disposed on the same side as an edge part 15m positioned on an inner peripheral side of an aspect surface facing indoor side of a vertical frame 15 in a depth direction and on an outer peripheral side of an edge part 14f positioned on the inner periphery side of a vertical frame 14 in the frame body 10A. A reinforcement material 50 is provided on the aspect surface facing the indoor side of the vertical frames 15, 44 adjacent to each other of the frame bodies 10A, 10C.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to building materials, and more particularly to building materials such as row windows and stepped windows that are constructed by connecting a plurality of frames to each other. [Background technology]

[0002] One such type of fitting is constructed by connecting vertical frames of juxtaposed frames to each other (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Special Publication No. 7-116888 Summary of the Invention [Problem to be solved by the invention]

[0004] Nowadays, there is a demand for larger openings, in other words thinner front surfaces of the frame material. In other words, if the dimension along the front direction of the frame material is reduced, it is possible to increase the glass opening accordingly. However, if the front dimension of the frame material is reduced, the cross-sectional performance will decrease. In particular, for fittings installed in high places such as buildings, large wind pressure is often applied, and this is not necessarily desirable in terms of wind pressure resistance.

[0005] In view of the above-mentioned circumstances, the present invention has an object to provide a fitting that can achieve a large opening while ensuring wind pressure resistance. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objective, the fitting of the present invention is a fitting constructed by connecting frame bodies with panels arranged inside them in a side-by-side state, and is characterized in that, on at least one of the frame bodies, a first inner periphery edge portion located on the inner periphery of the shaped member supporting the edge portion of the surface of the panel facing the outside of the room and a second inner periphery edge portion located on the inner periphery of the shaped member supporting the edge portion of the surface of the panel facing the inside of the room are each positioned at the same position as the frame material edge portion located on the inner periphery of the visible surface of the frame material facing the inside of the room in the projection direction, or are positioned more outer than the frame material edge portion, and that adjacent frame materials of the frame body have reinforcing materials provided on at least one of the visible surfaces facing the inside of the room. Effect of the Invention

[0007] According to the present invention, reinforcing material is provided on the visible surface of the frame material facing the interior of the room, so that the cross-sectional performance can be improved without increasing the dimension in the visible direction, making it possible to achieve a large opening while ensuring wind pressure resistance. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a fitting according to an embodiment of the present invention as viewed from the inside of a room. [Diagram 2] FIG. 2 is a vertical cross-sectional view of a first stage window constituting the fitting shown in FIG. [Diagram 3] FIG. 2 is a vertical cross-sectional view of a second-stage window constituting the fitting shown in FIG. 1. [Figure 4] FIG. 2 is a cross-sectional view of the upper window pane that constitutes the fixture shown in FIG. 1. [Diagram 5] FIG. 2 is a cross-sectional view of the lower window pane that constitutes the fixture shown in FIG. 1. [Figure 6] 5A and 5B show the main part of the continuous window shown in FIG. 4, where FIG. 5A is an exploded cross-sectional view and FIG. [Figure 7] 6A and 6B show the main part of the continuous window shown in FIG. 5, where FIG. 6A is an exploded cross-sectional view and FIG. 6B is a cross-sectional view. [Figure 8]This shows the main parts of the fixture shown in Figure 1, where (a) is an exploded cross-sectional view of the overlapping pieces of one frame material and the overlapping pieces of the other frame material before they are overlapped, (b) is an exploded cross-sectional view of the one frame material and the other frame material in close proximity, and (c) is a cross-sectional view of the overlapping pieces of one frame material and the overlapping pieces of the other frame material in overlapping state. [Figure 9] This is a cross-sectional view of the main parts of a fitting which is a first modified example of the present invention. [Figure 10] This is a cross-sectional view of the main parts of a fitting according to modified example 2 of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] A preferred embodiment of the fittings according to the present invention will be described in detail below with reference to the attached drawings. In the following, for convenience, the terms "visible direction" and "visible direction" may be used. The "visible direction" is the direction along the depth of the fittings, as shown by arrow A in the figure. A surface along the visible direction may be called a "visible surface." The "visible direction" is the direction along the top and bottom perpendicular to the visible direction in the case of an object that extends along the horizontal direction, such as a bottom frame. In the case of an object that extends along the vertical direction, such as a vertical frame, the direction along the horizontal direction perpendicular to the visible direction is called the "visible direction." A surface along the visible direction may be called a "visible surface."

[0010] (Overview) 1 to 7 show fittings according to an embodiment of the present invention. The fittings exemplified here are a first-stage window W1 with an upper vertical sliding window M11 and a lower fixed window (hereinafter, when distinguished, they will be referred to as the first fixed window M12), and a second-stage window W2 with an upper fixed window (hereinafter, when distinguished, they will be referred to as the second upper fixed window M21) and a lower fixed window (hereinafter, when distinguished, they will be referred to as the second lower fixed window M22), and the first-stage window W1 is connected to both sides of the second-stage window W2 in mutually symmetrical directions to form a two-stage window x three-stage window. The first stage window W1 comprises a first upper frame 11, a first transom 12, a first lower frame 13, and first left and right vertical frames (frame materials) 14, 15. A vertical sliding window M11 is formed by disposing a screen 20 and a screen door 30 inside the upper frame body 10A formed by the first upper frame 11, the first transom 12, and the first vertical frames 14, 15, and a first fixed window M12 is formed by disposing a panel P1 such as double-glazed glass inside the lower frame body 10B formed by the first transom 12, the first lower frame 13, and the first vertical frames 14, 15. The screen 20 is formed by disposing a panel 24 such as double-glazed glass inside a frame body formed by assembling an upper frame 21, a lower frame 22, and left and right vertical frames (shaped materials) 23, 23 around all four sides. A panel 24 is supported between the upper frame 21 and the left and right vertical frames 23, 23 and a ridge (shape) 25 provided on the outside of the room. An operating handle 26 is attached to one of the vertical frames 23 of the shoji screen 20. The screen door 30 is a foldable mesh body 33 disposed between the left and right vertical screen door frames 31, 32, and can be stored inside one of the first vertical frames 14. The second stage window W2 comprises a second upper frame 41, a second transom 42, a second lower frame 43, and second vertical frames (frame materials) 44, 44 on the left and right, and a second upper fixed window M21 is formed by arranging a panel P2 such as double-glazed glass inside the upper frame body 10C formed by the second upper frame 41, the second transom 42, and the second vertical frames 44, 44, and a second lower fixed window M22 is formed by arranging a panel P3 such as double-glazed glass inside the lower frame body 10D formed by the second transom 42, the second lower frame 43, and the second vertical frames 44, 44.The first upper frame 11, the first joiner 12, the first lower frame 13, the first vertical frames 14, 15, the second upper frame 41, the second joiner 42, the second lower frame 43, and the second vertical frames 44, 44 are all extruded shapes formed from a metal such as an aluminum alloy, and are configured so that the entire length along the longitudinal axis has an approximately uniform cross-sectional shape.

[0011] (First stage window W1) The first upper frame 11 has an upper base wall 11a, an upper panel cover wall 11b, an upper door stop wall 11c, an upper screen cover wall 11d, and an upper inner sight wall 11e. The upper base wall 11a extends almost horizontally along the projection direction. The upper panel cover wall 11b extends upward from the edge of the upper base wall 11a located on the outside of the room, and then extends almost horizontally along the projection direction toward the outside of the room. The edge of the upper panel cover wall 11b located on the outside of the room is provided with an upper sight wall 11f extending upward in the sight direction. An upper seal member 11g is attached to the part of the lower surface of the upper panel cover wall 11b located on the inside of the room. The upper door stop wall 11c extends downward in the sight direction from the edge of the upper base wall 11a located on the inside of the room. An inner seal member S1 is attached to the portion of the extended edge of the upper door stop wall 11c facing the outside via a seal mounting portion 11h. The upper screen door cover wall 11d extends almost horizontally toward the inside of the room from a portion of the upper door stop wall 11c's facing surface facing the room that is slightly lower than the upper base wall 11a. The upper inner sight wall 11e extends in the sight direction from the edge of the upper screen door cover wall 11d located on the inside of the room in a vertical direction. The downward protruding dimension of the upper inner sight wall 11e is almost equal to the protruding dimension of the upper door stop wall 11c.

[0012] The first interlining 12 has a middle base wall 12a, a middle panel cover wall 12b, a middle door stop wall 12c, a middle screen cover wall 12d, a middle inner sight wall 12e, and a middle inner panel clamping wall 12f. The middle base wall 12a, the middle panel cover wall 12b, the middle door stop wall 12c, the middle screen cover wall 12d, and the middle inner sight wall 12e correspond to the upper base wall 11a, the upper panel cover wall 11b, the upper door stop wall 11c, the upper screen cover wall 11d, and the upper inner sight wall 11e of the first upper frame 11, respectively. The middle base wall 12a extends almost horizontally along the projection direction. The middle panel cover wall 12b extends downward from the edge located on the outside of the middle base wall 12a and then extends almost horizontally along the projection direction toward the outside of the room. A rib (shaped member) 12g is attached to the exterior side of the lower surface of the middle panel cover wall 12b. The rib 12g has an attachment portion 12h extending along the middle panel cover wall 12b and a panel clamping portion 12i extending downward from the exterior edge of the attachment portion 12h, and is formed from a metal such as an aluminum alloy. The middle door stop wall 12c extends upward in the direction of view from the edge located on the interior side of the middle base wall 12a. The projection dimension of the middle door stop wall 12c from the middle base wall 12a is approximately equal to the projection dimension of the upper door stop wall 11c from the upper base wall 11a. An inner seal member S1 is attached to the portion of the extending edge of the middle door stop wall 12c facing the exterior via a seal mounting portion 12j. The middle screen cover wall 12d extends almost horizontally from a portion slightly above the middle base wall 12a on the visible surface of the middle door stop wall 12c facing the room toward the room. The middle interior visible wall 12e extends vertically in the visible direction from the edge located on the room side of the middle screen cover wall 12d. The upward protruding dimension of the middle interior visible wall 12e is almost equal to the protruding dimension of the middle door stop wall 12c. The middle interior panel clamping wall 12f extends downward in the visible direction from a portion on the room side on the projected surface below the middle panel cover wall 12b. The protruding dimension of the middle interior panel clamping wall 12f from the middle panel cover wall 12b is almost equal to the panel clamping portion 12i of the push edge 12g.Between the extending edge of the middle inner panel clamping wall portion 12f and the lower edge of the middle inner front wall portion 12e, an uninterrupted hollow portion 12m is formed by a middle front wall portion 12k.

[0013] The first lower frame 13 has a lower base wall 13a, a lower inner sight wall 13b, a lower inner panel clamping wall 13c, and a lower outer panel clamping wall 13d. The lower base wall 13a corresponds to the middle base wall 12a, the middle panel cover wall 12b, and the middle screen cover wall 12d of the first interlining 12. The lower inner sight wall 13b, the lower inner panel clamping wall 13c, and the lower outer panel clamping wall 13d correspond to the middle inner sight wall 12e, the middle inner panel clamping wall 12f, and the panel clamping part 12i of the ridge 12g of the first interlining 12, respectively. The lower base wall 13a extends almost horizontally along the projection direction. The lower inner sight wall 13b extends in the projection direction from the edge located on the indoor side of the lower base wall 13a toward the top and bottom. The lower inner panel clamping wall 13c extends upward in the sight direction from a portion corresponding to the middle inner panel clamping wall 12f on the sight surface above the lower base wall 13a. A lower hollow portion 13f is formed by the lower sight wall 13e between the extending edge of the lower inner panel clamping wall 13c and the upper edge of the lower inner sight wall 13b. The lower outer panel clamping wall 13d extends upward in the sight direction from the edge located on the outside of the lower base wall 13a. The protruding dimension of the lower outer panel clamping wall 13d from the lower base wall 13a is approximately the same as the protruding dimension of the lower inner panel clamping wall 13c.

[0014] The first vertical frame (hereinafter, when distinguished, referred to as the first outer vertical frame 14) arranged on the outer periphery of the building material and the first vertical frame (hereinafter, when distinguished, referred to as the first inner vertical frame 15) connected to the second vertical frame 44 of the second stage window W2 are arranged so that they are continuous between the vertical sliding window M11 of the first stage window W1 and the first fixed window M12.

[0015] The first outer vertical frame 14 has an outer base wall portion 14a, an outer door stop wall portion 14b, and an outer frame inner sight wall portion 14c. The outer base wall portion 14a corresponds to the lower base wall portion 13a of the first lower frame 13. The outer door stop wall portion 14b and the outer frame inner sight wall portion 14c correspond to the upper door stop wall portion 11c and the upper inner sight wall portion 11e of the first upper frame 11, respectively. The outer base wall portion 14a extends almost vertically along the projection direction. An attachment hook 14d is provided on the edge portion that faces the outside of the room on the projection surface that is the inner periphery of the outer base wall portion 14a. The attachment hook 14d protrudes toward the inner periphery and then bends toward the inside of the room. The outer door stop wall 14b extends from the portion corresponding to the upper door stop wall 11c of the first upper frame 11 on the inner peripheral side of the outer base wall 14a. The protruding dimension of the outer door stop wall 14b from the outer base wall 14a is set to be larger than the protruding dimension of the upper door stop wall 11c from the upper base wall 11a. The inner seal member S1 is attached only to the portion above the first interlining 12 at the almost middle portion of the protruding surface of the outer door stop wall 14b facing the outside of the room, via the seal attachment portion 14e. The outer frame inner sight wall 14c extends in the sight direction from the edge portion located on the indoor side of the outer base wall 14a toward the inner peripheral side and the outer peripheral side. The protruding dimension of the outer frame inner sight wall 14c toward the inner peripheral side is approximately equal to the protruding dimension of the outer door stop wall 14b.

[0016] The first inner vertical frame 15 has an inner base wall portion 15a, an inner door stop wall portion 15b, and an inner frame inner sight wall portion 15c. The inner base wall portion 15a, the inner door stop wall portion 15b, and the inner frame inner sight wall portion 15c correspond to the outer base wall portion 14a, the outer door stop wall portion 14b, and the outer frame inner sight wall portion 14c of the first outer vertical frame 14, respectively. The inner base wall portion 15a extends almost vertically along the projection direction. An attachment hook 15d similar to that of the first outer vertical frame 14 is provided on the edge portion that faces the outside of the room on the projection surface that is the inner periphery of the inner base wall portion 15a. The inner door stop wall portion 15b extends toward the inner periphery from a portion that corresponds to the outer door stop wall portion 14b of the first outer vertical frame 14 on the projection surface that is the inner periphery of the inner base wall portion 15a. The protruding dimension of the inner door stop wall 15b from the inner base wall 15a is almost equal to the protruding dimension of the upper door stop wall 11c from the upper base wall 11a. The inner seal member S1 is attached to the extending edge of the inner door stop wall 15b, which faces the outside of the room, only above the first flap 12, via the seal mounting part 15e. The inner frame inner sight wall 15c extends in the sight direction from the edge located on the inside of the room of the inner base wall 15a toward the inner periphery. The protruding dimension of the inner frame inner sight wall 15c toward the inner periphery is almost equal to the protruding dimension of the inner door stop wall 15b. As is clear from the figure, the inner frame inner sight wall 15c of this embodiment is configured to have a plate thickness larger than that of the outer frame inner sight wall 14c (almost three times as thick in the illustrated example). An inner locking protrusion 15f is provided on the interior side of the extended edge of the inner frame inner sight wall 15c. The inner locking protrusion 15f has an engagement recess 15g and an introduction inclined surface 15h on the inner peripheral side, and protrudes toward the interior side of the room.

[0017] In addition, the first inner vertical frame 15 is provided with an inner engagement piece 15i and an inner overlapping piece 15j on the outer peripheral surface of the inner base wall portion 15a. The inner engagement piece 15i extends from a portion that is closer to the room than the edge portion located on the room side of the inner base wall portion 15a toward the outer peripheral side, then bends and extends in the inner direction toward the room side. The inner overlapping piece 15j extends from a portion that is closer to the room than the edge portion located on the room side of the inner base wall portion 15a toward the outer peripheral side. The protruding dimension of the inner overlapping piece 15j from the inner base wall portion 15a is approximately equal to the protruding dimension of the inner engagement piece 15i. A fitting groove portion (fitting portion) 15k is provided in the portion located at the connecting portion with the inner base wall portion 15a on the inner surface of the inner overlapping piece 15j facing the room.

[0018] In the first-stage window W1 having the first upper frame 11, first interlining 12, first lower frame 13, and first vertical frames 14, 15 configured as described above, the first upper frame 11, the first interlining 12, and the first vertical frames 14, 15 form an upper frame body 10A, and the first interlining 12, the first lower frame 13, and the first vertical frames 14, 15 form a lower frame body 10B.

[0019] In the upper frame body 10A, a link mechanism 1 called a friction stay is interposed between the upper base wall portion 11a of the first upper frame 11 and the upper frame 21 of the shoji screen 20, and between the middle base wall portion 12a of the first transom 12 and the lower frame 22 of the shoji screen 20, respectively, to form a vertical sliding window M11 that can be opened to the outside. When the shoji screen 20 is placed in the closed position, approximately equal gaps are secured between the four peripheral projection surfaces on the inner periphery of the frame body 10A and the four peripheral projection surfaces on the outer periphery of the shoji screen 20. Therefore, the inner seal members S1 provided on each of the first upper frame 11, the first transom 12, and the first vertical frames 14, 15 are in a state of continuous contact with the projection surfaces of the upper frame 21, the lower frame 22, and the left and right vertical frames 23, 23 facing the room. In addition, an upper seal member 11g provided on the first upper frame 11 is interposed between the first upper frame 11 and the upper frame 21, and side seal members 23a, 23a provided on the vertical frames 23, 23 are interposed between the first vertical frames 14, 15 and the vertical frames 23, 23. Therefore, watertightness and airtightness in the indoor and outdoor directions can be ensured. In addition, a folding screen door 30 is stored between the outer door contact wall 14b of the first outer vertical frame 14 and the inner sight wall 14c of the outer frame in the part of the upper frame body 10A that is on the indoor side of the shoji screen 20. By pulling out this screen door 30, the upper frame body 10A can be covered with a mesh body 33 with the shoji screen 20 open, allowing ventilation between the indoor and outdoor without causing a situation where foreign objects such as insects enter the room.

[0020] As is clear from the figure, in the first inner vertical frame 15, the inner peripheral edge (first inner peripheral edge) 25a of the batten 25 supporting the edge portion of the surface of the panel 24 facing the outside and the inner peripheral edge (second inner peripheral edge) 23b of the vertical frame 23 supporting the edge portion of the surface of the panel 24 facing the inside are both located on the same vertical plane along the projection direction with respect to the edge (frame material edge) 15m located on the innermost side of the inner frame inner sight wall 15c. Similarly, in the first outer vertical frame 14, the inner peripheral edge 25a of the batten 25 supporting the edge portion of the surface of the panel 24 facing the outside and the inner peripheral edge 23b of the vertical frame 23 supporting the edge portion of the surface of the panel 24 facing the inside are both located on the outer peripheral side with respect to the edge (frame material edge) 14f located on the innermost side of the outer frame inner sight wall 14c. Therefore, when viewed from inside the room, the vertical frames 23, 23 and the edges 25, 25 of the shoji screen 20 do not extend beyond the first vertical frames 14, 15 and are not exposed to the inner periphery, which is advantageous in terms of appearance quality.

[0021] On the other hand, in the lower frame 10B, the attachments 16 are attached to the first outer vertical frame 14 and the first inner vertical frame 15, and the panel P1 is disposed between the attachments 16, the first transom 12, and the first bottom frame 13 to form the first fixed window M12. The outer dimensions of the panel P1 are almost the same as the panel P1 of the shoji screen 20 disposed in the upper frame 10A. The attachments 16 are symmetrical on the left and right, and have an attachment base plate 16a, a vertical inner panel clamping plate 16b, and a support plate 16c. The attachment base plate 16a and the vertical inner panel clamping plate 16b correspond to the middle panel cover wall 12b and the middle inner panel clamping wall 12f of the first transom 12, respectively. The attachment base plate 16a extends almost vertically along the projection direction. The attachment base plate 16a is provided with a flange 12g, an engagement leg 16d, and a fixed leg 16e. The flange 12g has a mounting portion 12h and a panel clamping portion 12i, similar to the flange 12 provided on the first transom 12, and is attached to the exterior side of the inner peripheral surface of the attachment base plate 16a. The engagement leg 16d and the fixed leg 16e extend in the viewing direction from the outer peripheral surface of the attachment base plate 16a toward the outer peripheral side. The engagement leg 16d extends from the exterior side toward the outer peripheral side. The extended edge of the engagement leg 16d is provided with an engagement claw portion 16f that is bent toward the exterior side and can engage with the attachment hooks 14d, 15d of the first vertical frames 14, 15. The fixed leg 16e extends from the edge of the attachment base plate 16a on the room side toward the outer periphery in the direction of view, and then bends and extends toward the room side. The projection dimensions of the engagement leg 16d and the fixed leg 16e from the attachment base plate 16a are approximately the same as each other, and are set to be larger than the projection dimension of the inner overlapping piece 15j from the inner base wall 15a. The projection dimension L1 of the engagement leg 16d and the fixed leg 16e is set to be approximately the same as the gap d1 secured between the projection surface on the inner periphery of the inner base wall 15a in the upper frame 10A and the projection surface on the outer periphery of the part of the vertical frame 23 of the shoji screen 20 located on the room side.The vertical inner panel clamping plate portion 16b extends from the edge of the attachment base plate portion 16a on the interior side toward the inner periphery. The projection dimension of the vertical inner panel clamping plate portion 16b from the attachment base plate portion 16a is approximately the same as the panel clamping portion 12i of the pressing edge 12g. The support plate portion 16c extends from the edge of the vertical inner panel clamping plate portion 16b on the interior side toward the interior of the room in the forward direction. The extending edge of the support plate portion 16c is provided with an engagement portion 16g that can engage with the seal mounting portions 14e, 15e. This attachment 16 is attached to the opposing portions of each of the first vertical frames 14, 15 by engaging the extended edge portion of the engagement leg portion 16d with the attachment hooks 14d, 15d of the first vertical frames 14, 15, engaging the engagement portion 16g of the support plate portion 16c with the seal mounting portions 14e, 15e of the first vertical frames 14, 15, and further screwing a fixing screw 16h into the extended edge portion of the fixing leg portion 16e through the outer base wall portion 14a and the inner base wall portion 15a.

[0022] The lower edge of the panel P1 is inserted between the lower inner panel sandwiching wall 13c and the lower outer panel sandwiching wall 13d of the first lower frame 13 into the lower frame 10B to which the attachment 16 is attached, and then the first fixed window M12 is formed by attaching the battens 12g to the attachments 16, 16 of the first transom 12 and the first vertical frames 14, 15. The first fixed window M12 is also formed by attaching the battens 12g to the attachments 16, 16 of the first transom 12, the first lower frame 13, and the first vertical frames 14, 15, which abut against the surface of the panel P1, with the seal member S2 interposed therebetween. In this first fixed window M12, the attachment 16 and the battens 12g supporting the panel P1 do not have their edges located on the inner periphery side exposed beyond the inner frame inner sight wall 15c of the first inner vertical frame 15 or the outer frame inner sight wall 14c of the first outer vertical frame 14 when viewed from the inside of the room, which is advantageous in terms of appearance quality.

[0023] As described above, the gap d1 secured between the screen 20 and the first inner vertical frame 15 in the upper frame body 10A and the gap L1 secured between the attachment base plate 16a and the first inner vertical frame 15 in the lower frame body 10B are substantially the same. Therefore, the gap d1 secured between the first inner vertical frame 15 and the vertical frame 23 of the screen 20 in the upper frame body 10A and the gap L1 secured between the first inner vertical frame 15 and the attachment base plate 16a of the attachment 16 in the lower frame body 10B extend on the same straight line with the first transom 12 in between. In other words, different window types are arranged side by side in the upper frame body 10A and the lower frame body 10B, but the first vertical frames 14, 15 on the left and right each extend on the same straight line, and the vertical frames 23 and ridges 25 supporting the edges of the panel P1 and the ridges 12g of the attachment 16 extend on the same straight line with the same visible dimensions, and further, the gap d1 between the first inner vertical frame 15 and the vertical frame 23 and the gap L1 between the first inner vertical frame 15 and the attachment 16 also extend on the same straight line with the same visible dimensions, which is advantageous in terms of appearance quality when viewed from outside the room.

[0024] (Second stage window W2) The second upper frame 41 has an upper base wall 41a, an upper inner sight wall 41b, and an upper inner panel clamping wall 41c, and is configured so that the dimensions along the projection direction are approximately the same as those of the first upper frame 11. The upper base wall 41a extends approximately horizontally along the projection direction. An upper groove forming wall 41d is provided on the edge located on the outside of the room on the upper surface of the upper base wall 41a. The upper groove forming wall 41d extends upward from the upper base wall 41a in the projection direction, then extends toward the outside of the room in the projection direction, and further extends upward in the projection direction to form a gap groove 41e that opens to the outside above the upper base wall 41a. A batten 12g is attached to the portion of the projection surface below the upper base wall 41a that is the outside of the room. The push edge 12g, like that provided on the first upper frame 11, has an attachment portion 12h and a panel clamping portion 12i, and the panel clamping portion 12i extends downward in the find direction from the projected surface that is the inner periphery of the upper base wall portion 41a. The upper inner find wall portion 41b extends in the find direction from the edge portion located on the indoor side of the upper base wall portion 41a in the vertical direction. The upper inner panel clamping wall portion 41c extends in the find direction from a portion that is slightly outside the room from the center on the projected surface that is the lower side of the upper base wall portion 41a in the find direction downward. Between the extended edge portion of the upper inner panel clamping wall portion 41c to the lower edge portion of the upper inner find wall portion 41b, an upper hollow portion 41g is formed by the upper see-through wall portion 41f. The projection dimension of the upper inner panel clamping wall 41c from the upper base wall 41a is approximately the same as the panel clamping portion 12i of the ridge 12g. Although not shown in the figure, the second upper frame 41 is configured such that when the upper inner sight walls 11e, 41b are matched with the first upper frame 11, the upper base wall 41a is positioned at approximately the same height as the upper frame 21 of the first-stage window W1, and the portion of the upper groove-forming wall 41d extending in the sight direction is positioned at approximately the same height as the upper panel cover wall 11b of the first upper frame 11.

[0025] The second transom 42 has a middle base 42a, a middle-upper panel clamping wall 42b, and a middle-lower panel cover wall 42c. The middle base 42a is an irregular hollow shape. That is, the middle base 42a has a part facing the room, an upper part, and a lower part each extending on a flat surface, while the center part of the part facing the outside of the room is hat-shaped so that it protrudes toward the outside, and has recesses 42d, 42e at the upper corner edge and the lower corner edge on the outside of the room. The middle-upper panel clamping wall 42b extends from the upper part of the part protruding toward the outside of the middle base 42a in the projection direction almost horizontally toward the outside, and then extends upward in the sight direction. The dimension of the middle-upper panel clamping wall 42b along the sight direction is almost the same as the dimension of the sight surface of the lower frame 22 facing the outside of the shoji 20 of the first-stage window W1. The upper edge of the middle-upper panel clamping wall 42b is at approximately the same position as the upper surface of the middle base 42a. The middle-lower panel cover wall 42c extends approximately horizontally from the lower part of the part of the middle base 42a that protrudes to the outside of the room toward the outside of the room. Between the middle-lower panel cover wall 42c and the middle-upper panel clamping wall 42b, a dimension d3 is secured that is approximately the same as the gap d2 secured between the middle panel cover wall 12b of the first transom 12 that constitutes the upper frame 10A of the first stage window W1 and the projected surface that is the outer periphery side of the part located on the outside of the lower frame 22 of the shoji screen 20. A batten 12g is attached to the projected surface that is the lower part of the middle-lower panel cover wall 42c, on the part that is the outside of the room. The pressing edge 12g, like the one provided on the second upper frame 41, has an attachment portion 12h and a panel clamping portion 12i, and the panel clamping portion 12i extends downward in the viewing direction from the projected surface that is the inner periphery of the middle-lower panel cover wall portion 42c.

[0026] The second lower frame 43 has a lower base wall portion 13a, a lower inner sight wall portion 13b, a lower inner panel clamping wall portion 13c, and a lower outer panel clamping wall portion 13d, and has the same cross-sectional shape as the first lower frame 13.

[0027] The second vertical frames 44, 44 are symmetrical to each other on the left and right, and are configured so that the dimensions along the length are approximately the same as those of the first vertical frames 14, 15. In the illustrated example, each second vertical frame 44, 44 is configured with a vertical base wall portion 44a, a vertical inner sight wall portion 44b, and a vertical inner panel clamping plate portion 44c. The vertical base wall portion 44a, the vertical inner sight wall portion 44b, and the vertical inner panel clamping plate portion 44c correspond to the upper base wall portion 41a, the upper inner sight wall portion 41b, and the upper inner panel clamping wall portion 41c of the second upper frame 41, respectively. The vertical base wall portion 44a extends approximately vertically along the projection direction. A batten 12g is attached to the portion of the projection surface on the inner periphery side of the vertical base wall portion 44a that faces the outside of the room. The ridge 12g, like that provided on the second upper frame 41, has an attachment portion 12h and a panel clamping portion 12i, and the panel clamping portion 12i extends in the sight direction from the projected surface that is the inner periphery of the vertical base wall portion 44a toward the inner periphery. The vertical inner sight wall portion 44b extends in the sight direction from the edge portion located on the interior side of the vertical base wall portion 44a toward the inner periphery. As is clear from the figure, the vertical inner sight wall portion 44b in this embodiment is configured to have a plate thickness larger than that of the vertical base wall portion 44a (almost three times as thick in the illustrated example). A vertical locking protrusion 44d is provided on the interior side of the extended edge of the vertical inner sight wall portion 44b. The vertical locking protrusion 44d is paired with the inner locking protrusion 15f of the first inner vertical frame 15, has an engagement recess 44e and an introduction inclined surface 44f on the inner peripheral side, and protrudes toward the inside of the room. The vertical inner panel clamping plate portion 44c extends in the sight direction from a portion corresponding to the lower inner panel clamping wall portion 13c on the inner peripheral side of the projection surface of the vertical base wall portion 44a toward the inner peripheral side. A vertical hollow portion 44h is formed by the vertical projection wall portion 44g between the extending edge portion of the vertical inner panel clamping plate portion 44c and the inner peripheral edge portion of the vertical inner sight wall portion 44b. The projection dimension of the vertical inner panel clamping plate portion 44c from the vertical base wall portion 44a is approximately the same as the panel clamping portion 12i of the push edge 12g.

[0028] In addition, the second vertical frame 44, 44 has a vertical engagement piece 44i and a vertical overlap piece 44j on the projection surface on the outer periphery side of the vertical base wall portion 44a. The vertical engagement piece 44i extends from the portion inside the room from the edge portion located on the outside of the vertical base wall portion 44a toward the outer periphery, then bends and extends in the projection direction toward the outside of the room, forming a gap between the vertical base wall portion 44a and the inner engagement piece 15i of the first inner vertical frame 15. The vertical overlap piece 44j protrudes in the projection direction toward the outer periphery from the edge portion located on the inside of the vertical base wall portion 44a, and is provided so that when the vertical engagement piece 44i is engaged with the inner engagement piece 15i, it can be overlapped with the inner overlap piece 15j of the first inner vertical frame 15 from the inside of the room. The thickness of the vertical overlapping piece 44j is almost the same as that of the vertical inner sight wall 44b, and when it is overlapped with the inner overlapping piece 15j from the inside of the room, the sight surface of the vertical inner sight wall 44b facing the room and the sight surface of the inner frame inner sight wall 15c facing the room are set to be located on the same plane along the sight direction. In addition, at this time, the edge portion located on the outside of the vertical base wall 44a and the edge portion located on the outside of the inner base wall 15a are located on the same plane along the sight direction. The protruding dimension of the vertical overlapping piece 44j from the vertical base wall 44a is almost equal to the protruding dimension of the inner overlapping piece 15j from the inner base wall 15a. The extending edge portion of the vertical overlapping piece 44j is provided with a fitting protrusion (fitting portion) 44k on the part located on the outside of the room. The fitting protrusion 44k fits into the fitting groove portion 15k of the inner polymer piece 15j, and when fitted into the fitting groove portion 15k, the extending end face (defined surface) 44m of the vertical polymer piece 44j abuts against the expected surface on the outer periphery of the inner base wall portion 15a, and the surface of the vertical polymer piece 44j facing outside the chamber and the surface of the inner polymer piece 15j facing inside the chamber abut against each other.

[0029] In the second-stage window W2 having the second upper frame 41, second interlining 42, second lower frame 43, and second vertical frames 44, 44 configured as described above, the upper frame body 10C is formed by the second upper frame 41, the second interlining 42, and the second vertical frames 44, 44, and the lower frame body 10D is formed by the second interlining 42, the second lower frame 43, and the second vertical frames 44, 44, and a second upper FIX window M21 and a second lower FIX window M22 are formed by arranging panels P2, P3 having the same external dimensions in each frame body 10C, 10D. That is, in the upper frame body 10C, the lower edge of the panel P2 is set between the recessed portion 42d provided at the upper corner edge of the second transom 42 and the middle upper panel sandwiching wall portion 42b, and then the second upper frame 41 and the second vertical frame 44, 44 are fitted with the pressing edge 12g, respectively, to form the second upper FIX window M21. The second upper frame 41, the second transom 42, and the second vertical frame 44, 44 have the sealing member S2 interposed therein at their portions that abut against the surface of the panel P2. Similarly, in the lower frame body 10D, the lower edge of the panel P3 is set between the lower inner panel sandwiching wall portion 13c and the lower outer panel sandwiching wall portion 13d of the second lower frame 43, and then the pressing edge 12g is fitted to the second transom 42 and the second vertical frame 44, 44, respectively, to form the second lower FIX window M22. A seal member S2 is interposed in the portions of the second transom 42, the second lower frame 43, and the second vertical frames 44, 44 that come into contact with the surface of the panel P2. The position of the second transom 42 is set so that the upper surface of the middle / lower panel cover wall portion 42c coincides with the upper surface of the middle panel cover wall portion 12b in the first transom 12.

[0030] (Furniture configuration) To connect the first and second window sections W1 and W2 to the left and right, first, the inner engagement piece 15i on the first inner vertical frame 15 is engaged with the vertical engagement piece 44i on the second vertical frame 44, and then, as shown in Fig. 8, the inner overlap piece 15j on the first inner vertical frame 15 is overlapped with the vertical overlap piece 44j on the second vertical frame 44 from the inside of the room, and the fitting protrusion 44k is fitted into the fitting groove 15k. When the fitting protrusion 44k is fitted into the fitting groove 15k, the extending end surface 44m of the vertical overlap piece 44j is maintained in contact with the expected surface on the outer periphery side of the inner base wall portion 15a. That is, on the outside of the room, the engagement of the inner engagement piece 15i and the vertical engagement piece 44i restricts the movement of the first inner vertical frame 15 and the second vertical frame 44 in the direction away from each other, and on the inside of the room, the engagement of the engagement protrusion 44k and the engagement groove portion 15k restricts the movement of the first inner vertical frame 15 and the second vertical frame 44 in the direction away from each other. In addition, the extended edge portion of the inner engagement piece 15i abuts against the vertical base wall portion 44a, and the extended end face 44m of the vertical overlapping piece 44j abuts against the inner base wall portion 15a, so that the mutual distance between the first inner vertical frame 15 and the second vertical frame 44 is accurately determined. Therefore, as shown in Figures 6 and 7, if the screw member B1 is screwed into the inner overlapping piece 15j through the vertical overlapping piece 44j from this state, the first stage window W1 and the second stage window W2 can be connected to each other in a state in which the dimension along the viewing direction is accurately determined. Moreover, this fitting connects the first and second windows W1 and W2 without the need for vertical ribs or mullions, which makes it possible to prevent increases in manufacturing costs and external dimensions. As shown in Figures 6 and 7, the vertical overlapping pieces 44j have recesses 44n in which the heads of the screws B1 can be accommodated in the parts where the screws B1 are screwed. Therefore, the heads of the screws B1 do not protrude into the room from the visible surface of the vertical inner visible wall 44b that faces the room.

[0031] Furthermore, in this fitting, a reinforcing member 50 and a cover member 51 are provided in the portion extending over the first inner vertical frame 15 and the second vertical frame 44 exposed to the interior side. The reinforcing member 50 is formed from metal such as aluminum alloy, steel, or stainless steel, and is provided over the entire length of the first inner vertical frame 15 and the second vertical frame 44 along the longitudinal direction. In the embodiment, the reinforcing member 50 having a reinforcing base 50a, a projected extension 50b, and a visible extension 50c is applied. The reinforcing base 50a is a flat plate having a width corresponding to the mutual distance between the inner locking protrusion 15f and the vertical locking protrusion 44d. The visible extension 50b extends from one edge of the reinforcing base 50a in the projected direction toward the interior of the room. The visible extension 50c extends in the projected direction from the extended edge of the projected extension 50b toward the direction facing the reinforcing base 50a. The reinforcing material 50 is fixed to the second vertical frame 44 by screwing a mounting screw 53 into the vertical inner sight wall 44b via the reinforcing base 50a with the reinforcing base 50a abutting against the sight surface of the inner frame inner sight wall 15c facing the room and the sight surface of the vertical inner sight wall 44b facing the room. The cover member 51 is a square tube with one side open and a length almost equal to the total length along the longitudinal direction of the first inner vertical frame 15 and the second vertical frame 44, and is formed to a size that can accommodate the reinforcing material 50 inside. The cover member 51 is attached to the portion spanning the first inner vertical frame 15 and the second vertical frame 44 via the inner locking projection 15f and the vertical locking projection 44d.

[0032] According to the fitting provided with the reinforcing material 50 as described above, the cross-sectional performance of the first inner vertical frame 15 and the second vertical frame 44 is improved by providing the reinforcing material 50. Therefore, even if the dimensions of the first inner vertical frame 15 and the second vertical frame 44 along the view direction are set small in order to achieve a large opening, it is possible to ensure sufficient rigidity. This has the advantage that even when the fitting is installed in a high place such as a building, there is no risk of the central portion along the length of the first inner vertical frame 15 and the second vertical frame 44 deforming to be convex toward the inside and outside of the room due to the wind pressure from the outside being applied to the panels 24, P1, P2, and P3.

[0033] Between the first and second window stages W1 and W2, which are connected to each other, a groove-shaped recess 2 that opens toward the outside is formed in the area surrounded by the inner base wall portion 15a, the inner engagement piece 15i, and the vertical base wall portion 44a. Therefore, by filling this recess 2 with a sealant S4, it is possible to prevent water and air from passing between the first and second window stages W1 and W2, which is advantageous in terms of watertightness and airtightness.

[0034] Moreover, the gap d4 secured between the first upper frame 11 and the upper frame 21 of the shoji screen 20 in the first step window W1 and the gap groove portion 41e formed by the upper groove forming wall portion 41d of the second upper frame 41 in the second step window W2 have the same visible dimension and extend in the left-right direction at the same height position. Similarly, the gap d2 secured between the middle panel cover wall portion 12b of the first transom 12 and the lower frame 22 of the shoji screen 20 in the first step window W1 and the gap d3 between the middle lower panel cover wall portion 42c of the second transom 42 and the middle upper panel clamping wall portion 42b in the second step window W2 have the same visible dimension and extend in the left-right direction at the same height position. Therefore, in the two adjacent step windows W1 and W2, the gaps extending in the left-right direction are also continuous, which is advantageous in terms of appearance quality when viewed from the outside of the room.

[0035] Furthermore, the dimensions of the gaps provided on both sides of the first inner vertical frame 15 are not the same for the first and second window sections W1 and W2. However, by connecting the first window section W1 to both sides of the second window section W2 symmetrically, the left and right sides are symmetrical with the second window section W2 at the center. This results in a favorable appearance quality of the fixture when viewed from the outside.

[0036] In the above embodiment, the protruding dimension of the inner engagement piece 15i from the first inner vertical frame 15 is configured to be larger than the protruding dimension of the vertical engagement piece 44i from the second vertical frame 44, but the protruding dimension of the vertical engagement piece 44i from the second vertical frame 44 may be configured to be larger than the protruding dimension of the inner engagement piece 15i from the first inner vertical frame 15. In addition, although a plurality of step windows W1, W2 are connected to the left and right, the connecting frame body does not have to be a step window. Furthermore, although a frame body connected to the left and right is illustrated, it may be connected vertically. Furthermore, although a fitting equipped with a screen door 30 is illustrated, it is not necessarily required to have a screen door.

[0037] (Modification) In the above-described embodiment, the reinforcing member 50 has a reinforcing base 50a, a projected extension 50b, and a visible extension 50c, and the reinforcing base 50a is provided so as to span the first inner vertical frame 15 and the second vertical frame 44, but the shape of the reinforcing member is not limited thereto. For example, as in Modification 1 shown in FIG. 9 and Modification 2 shown in FIG. 10, a separate reinforcing member may be provided for each of the first inner vertical frame 15 and the second vertical frame 44. That is, in Modification 1 of FIG. 9, two reinforcing members 54 having a reinforcing base 54a, a projected extension 54b, and a visible extension 54c are prepared, and a mounting screw 53 is screwed into the inner frame inner visible wall portion 15c of the first inner vertical frame 15 through the reinforcing base 54a of one reinforcing member 54. Similarly, the mounting screw 53 is screwed into the vertical inner visible wall portion 44b of the second vertical frame 44 through the reinforcing base 54a of the other reinforcing member 54. In addition, a back plate 56 is disposed on the inner side of the internal locking protrusion 15f and the vertical locking protrusion 44d, and a reinforcing screw 55 is screwed into the back plate 56 through the cover member 51, so that the internal locking protrusion 15f and the vertical locking protrusion 44d are sandwiched between the cover member 51 and the back plate 56.

[0038] 10, two reinforcing members 57 having a reinforcing base 57a, a projected extension 57b, and a projected extension 57c are prepared, and the reinforcing base 57a of one reinforcing member 57 is abutted against the inner frame inner projecting wall 15c of the first inner vertical frame 15, and from this state, the mounting screw 53 is screwed into the projected extension 57b via the cover member 51, so that the inner locking protrusion 15f is sandwiched between the cover member 51 and the back plate 56. Similarly, the reinforcing base 57a of the other reinforcing member 57 is abutted against the vertical inner projecting wall 44b of the second vertical frame 44, and from this state, the mounting screw 53 is screwed into the projected extension 57b via the cover member 51, so that the vertical locking protrusion 44d is sandwiched between the cover member 51 and the back plate 56.

[0039] In the above-mentioned embodiment, the first inner peripheral edge portion located on the inner periphery of the battens and vertical frames supporting the edge portion of the surface of the panel facing the outside of the room, and the second inner peripheral edge portion located on the inner periphery of the battens and vertical frames supporting the edge portion of the surface of the panel facing the inside of the room, are configured to be located on the same side as the frame material edge portion located on the inner periphery of the visible surface of the vertical frame facing the inside of the room in the projection direction, or on the outer side of the frame material edge portion, but this is not necessarily limited to this. In particular, in the case of a sliding window, it is preferable to configure the frame material to protrude from the visible surface of the frame body to the inside of the room from the viewpoint of opening and closing operability. In addition, although the reinforcing material is provided on both vertical frames, it is sufficient to provide it on at least one of the vertical frames, and a cover member is not necessarily required.

[0040] As described above, the fittings of the present invention are fittings constructed by connecting frame bodies with panels arranged inside them in a side-by-side state, and are characterized in that, on at least one of the frame bodies, a first inner periphery edge portion located on the inner periphery of the shaped member supporting the edge portion of the surface of the panel facing the outside of the room and a second inner periphery edge portion located on the inner periphery of the shaped member supporting the edge portion of the surface of the panel facing the inside of the room are each positioned at the same position as the frame material edge portion located on the inner periphery of the visible surface of the frame material facing the inside of the room in the projection direction, or are positioned more outer than the frame material edge portion, and that adjacent frame materials of the frame bodies are provided with reinforcing material on at least one of the visible surfaces facing the inside of the room. According to this invention, reinforcing material is provided on the visible surface of the frame material facing the interior of the room, so that the cross-sectional performance can be improved without increasing the dimension in the visible direction, making it possible to achieve a large opening while ensuring wind pressure resistance.

[0041] Furthermore, the present invention is characterized in that, in the above-mentioned building fixture, the reinforcing material is provided in a portion spanning each of the adjacent frame materials and abuts against each of the visible surfaces facing the interior of the room. According to the present invention, the cross-sectional performance of each of the adjacent frame materials can be improved.

[0042] The present invention is further characterized in that, in the above-mentioned building fixture, the reinforcing material is composed of a reinforcing base covering the visible surface of the frame material facing the interior of the room, and a projected extension extending in a projected direction from the reinforcing base toward the interior of the room. According to this invention, a shaped member having a reinforcing base and a prospective extension can be used as the reinforcing material, thereby preventing an increase in weight.

[0043] The present invention is also characterized in that in the above-mentioned fitting, a cover member is provided on the portion of the frame material facing the interior of the room, covering the reinforcing material. According to this invention, it is possible to prevent the reinforcing material from being exposed to the outside, and there is no risk of impairing the appearance quality.

[0044] The present invention is also characterized in that, in the above-mentioned building fixture, adjacent frame members of the frame body are provided with engaging pieces which extend in the visible direction from the opposing projected surfaces and then bend and extend in the visible direction, and the adjacent frame members are prevented from moving away from each other by engaging the engaging piece provided on one frame member between the projected surface and the engaging piece provided on the other frame member. According to this invention, by engaging the engaging pieces along the projecting direction with each other, it is possible to prevent adjacent frame bodies from moving away from each other, making it possible to connect side-by-side frame bodies without the need for vertical frame members or upright members, thereby preventing increases in manufacturing costs and external dimensions.

[0045] The present invention is also characterized in that, in the above-mentioned building fixture, the one frame material and the other frame material are each provided with overlapping pieces that overlap each other in the front direction at a portion located on the inside of the room relative to the engaging piece, and at least one of the overlapping pieces is provided with a defined surface that abuts against the front surface of the frame material on which the other of the overlapping pieces is provided. According to this invention, it is possible to accurately determine the dimensions of the connected frame body by abutting the specified surface of the overlapping piece with the prospective surface of the frame material.

[0046] The present invention is also characterized in that, in the above-mentioned building fixture, the two overlapping pieces are provided with an engaging portion, which engages when the specified surface abuts the visible surface of the frame material on which the other of the overlapping pieces is provided, thereby regulating the relative movement of the two overlapping pieces along the visible direction. According to this invention, the relative movement is restricted by fitting the fitting portions of the overlapping pieces together, so that the work of connecting the frame bodies and the work of attaching the cover member can be facilitated.

[0047] The present invention is further characterized in that, in the above-mentioned fitting, the overlapping piece that is placed on the inside of the room has a recess in the part facing the room, and an attachment screw is screwed into the overlapping piece that is placed on the outside of the room through the recess of the overlapping piece. According to this invention, adjacent frame members are firmly connected via the overlapping pieces into which the mounting screws are screwed. Moreover, since the heads of the mounting screws do not protrude from the facing surfaces of the frame members that face the room, they do not get in the way when attaching the reinforcing members. [Explanation of symbols]

[0048] 10A, 10B, 10C, 10D frame body, 14, 15 first vertical frame, 14f, 15m edge portion, 15i inner engagement piece, 15j inner overlap piece, 15k fitting groove portion, 23 vertical frame, 23b, 25a inner peripheral edge portion, 24, P1, P2, P3 panel, 25 push edge, 44 second vertical frame, 44i vertical engagement piece, 44j vertical overlap piece, 44k fitting protrusion, 44m extended end surface, 44n recess, 50, 54, 57 reinforcement material, 50a, 54a, 57a reinforcement base portion, 50b, 54b, 57b prospective extension portion, 51 cover member, 53 mounting screw

Claims

1. A fitting constructed by connecting frames with panels arranged inside in a juxtaposed state, In at least one of the frame bodies, a first inner peripheral edge portion located on the inner peripheral side of a shaped member supporting an edge portion of the surface of the panel facing the outside of the room and a second inner peripheral edge portion located on the inner peripheral side of a shaped member supporting an edge portion of the surface of the panel facing the inside of the room are each disposed at the same position as a frame material edge portion located on the inner peripheral side of a visible surface of the frame material facing the inside of the room in the projection direction, or disposed on the outer peripheral side of the frame material edge portion; A fixture characterized in that a reinforcing material is provided on at least one of the adjacent frame members of the frame body, the visible surface facing the interior of the room.

2. 2. The fixture according to claim 1, wherein the reinforcing material is provided in a portion spanning each of the adjacent frame members and abuts against the respective facing surfaces facing the interior of the room.

3. The fixture described in claim 1, characterized in that the reinforcing material is composed of a reinforcing base covering the visible surface of the frame material facing the interior of the room, and a projected extension extending in a projected direction from the reinforcing base toward the interior of the room.

4. 2. The fixture according to claim 1, characterized in that a cover member is provided on the portion of the frame material facing the interior of the room, covering the reinforcing material.

5. The frame members adjacent to each other in the frame body are provided with engagement pieces extending in the front direction from the front surfaces facing each other and then bending to extend in the front direction, The fixture described in claim 1, characterized in that the adjacent frame materials are prevented from moving away from each other by engaging the engaging piece provided on one frame material between the engaging piece and the visible surface of the other frame material.

6. The one frame material and the other frame material are each provided with an overlapping piece that overlaps with each other in the projection direction at a portion located on the indoor side of the engagement piece, The fixture according to claim 5, characterized in that at least one of the overlapping pieces has a defined surface that abuts against the visible surface of the frame material on which the other of the overlapping pieces is provided.

7. The fitting described in claim 6, characterized in that the two overlapping pieces are provided with an engaging portion, which engages with the defined surface when it abuts the visible surface of the frame material on which the other of the overlapping pieces is provided, thereby regulating relative movement of the two overlapping pieces along the visible direction.

8. The fixture described in claim 6, characterized in that the overlapping piece that is placed on the indoor side has a recess in the part facing the room, and an attachment screw is screwed into the overlapping piece that is placed on the outdoor side through the recess of the overlapping piece.

Images