Fitting

The building fixture with a reinforced hollow portion addresses strength issues in dry construction and reduces manufacturing costs by using a reinforcing material only when necessary, ensuring structural integrity and cost-effectiveness.

JP2025182794APending Publication Date: 2025-12-16YKK AP INC
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Patent Information

Application Number
JP2024090405
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-04
Publication Date
2025-12-16

AI Technical Summary

Technical Problem

Existing frame constructions for fixtures like glass panels face strength issues during dry construction, leading to potential deformation when external forces are applied, and using hollow extensions increases manufacturing costs in wet construction.

Method used

A building fixture with a panel accommodating section on the outdoor side of the anchor mounting section, featuring a hollow portion reinforced by attaching a reinforcing material to the outer periphery, which prevents deformation during dry construction and reduces manufacturing costs by omitting the reinforcing material in wet construction.

Benefits of technology

The solution ensures strength during dry construction without increasing manufacturing costs, as the reinforcing material is only needed for dry construction, and can be omitted in wet construction.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a panel housing section at a location of outdoor side of an anchor mounting part without causing a problem in strength when dry construction is performed, and to prevent an increase in manufacturing costs even when the panel housing section is used in common with wet construction.SOLUTION: A fitting is provided in which an anchor fitting section 21e is provided to an upper frame 11 constituting a frame body 10 and the upper frame 11 is supported by a skeleton B through an anchor member D1 fitted to the anchor fitting section 21e, the upper frame 11 being provided with an upper panel containing section 21h so that a part thereof is located on the outdoor side of the anchor fitting section 21e, the upper panel containing section 21h being provided at the outer periphery with a reinforcing member 30 to define a hollow section 32 therebetween on the outdoor side of the anchor fitting section 21e.SELECTED DRAWING: Figure 2
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Description

[Technical Field]

[0001] The present invention relates to a fitting, and more particularly to a fitting in which a frame material is supported on a building frame via an anchor member. [Background technology]

[0002] When supporting the frame of a fixture on a concrete skeleton such as reinforced concrete or aluminum-alloy (ALC), anchor members are sometimes used. Anchor mounting parts are provided on frame materials such as the upper frame that make up the frame so that anchor members can be attached, and the frame materials are attached to the skeleton by connecting the anchor members attached to the anchor mounting parts to the skeleton (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-124355 Summary of the Invention [Problem to be solved by the invention]

[0004] In some cases, the panel housing for a glass panel or other panel is located outside the anchor mounting portion. By extending the extension portion of the panel housing from the anchor mounting portion toward the exterior, the panel can be mounted outside the anchor mounting portion. However, while wet construction, in which mortar is filled between the frame and the main frame, is sufficient, dry construction without mortar can pose strength issues. In other words, with wet construction, the periphery of the extension is filled with mortar, preventing deformation and movement of the extension toward the periphery even when external forces are applied. In contrast, with dry construction, the extension cannot be held from the periphery, which could lead to deformation of the extension toward the periphery when an external force is applied, such as to move the panel outside the room. In particular, in fixed windows in which the panel is fixedly fitted to the frame, the edge of the panel is in contact with the extension via a sealing material, so external forces applied to the panel are directly applied to the extension, raising concerns that the above-mentioned problems may become more pronounced. Incidentally, it is possible to provide a hollow extension, which is advantageous in terms of strength. However, frames with hollow extensions are less costly to manufacture than frames with plate-shaped extensions. Therefore, when using the same frame for both dry and wet construction, there is a risk that the wet construction method will result in a significant increase in manufacturing costs.

[0005] In view of the above circumstances, the present invention aims to provide a fitting that can be provided with a panel accommodating section on the outdoor side of the anchor mounting section without causing strength problems when dry construction is used, and that can prevent manufacturing costs from increasing even when the fitting is used in conjunction with wet construction. [Means for solving the problem]

[0006] In order to achieve the above-mentioned objective, the building fixture of the present invention is a building fixture in which an anchor mounting portion is provided on the frame material that constitutes the frame body, and the frame material is supported on the main body via an anchor member attached to the anchor mounting portion, and the frame material is provided with a panel accommodating portion so that at least a portion of it is on the outside of the room relative to the anchor mounting portion, and a hollow portion is formed by attaching a reinforcing material to the outer periphery of the panel accommodating portion in the portion that is on the outside of the room relative to the anchor mounting portion. [Effects of the Invention]

[0007] According to the present invention, by attaching a reinforcing material, a hollow portion is formed in the portion on the exterior side of the anchor attachment portion, which is advantageous in terms of strength compared to when a panel housing portion is simply constructed by providing a plate-shaped member. Therefore, there is no risk of strength problems occurring even in dry construction. Moreover, when the frame material is used for both wet construction and dry construction, the reinforcing material can be omitted, thereby reducing manufacturing costs. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing a fitting according to an embodiment of the present invention as seen from the inside of a room. [Figure 2] FIG. 2 is a vertical cross-sectional view showing the state in which the fitting shown in FIG. 1 is supported on a building frame. [Figure 3] FIG. 2 is a cross-sectional view showing the state in which the fitting shown in FIG. 1 is supported on a framework. [Figure 4] This shows the reinforcing material to be applied to the fitting shown in Figure 1, where (a) is an end view of the reinforcing material to be applied to the upper frame, and (b) is an end view of the reinforcing material attached to the metal frame part of the upper frame. [Figure 5] FIG. 2 is an end view showing the metal frame portion of the lower frame applied to the fitting shown in FIG. [Figure 6] 2 shows the reinforcement material shown in FIG. 1, where (a) is an end view of the reinforcement material applied to the vertical frame, and (b) is an end view of the reinforcement material attached to the metal frame part of the vertical frame. [Figure 7]1A and 1B show a reinforcing material according to a first modified example of the present invention, in which FIG. 1A is an end view of the reinforcing material, and FIG. 1B is an end view of the reinforcing material attached to the metal frame portion of the upper frame. [Figure 8] 10A and 10B show a reinforcing material according to a second modified example of the present invention, in which FIG. 10A is a longitudinal cross-sectional view of the reinforcing material, and FIG. 10B is a longitudinal cross-sectional view of the reinforcing material attached to the metal frame portion of the upper frame. [Figure 9] 10A and 10B show a reinforcing material according to a third modified example of the present invention, in which (a) is an end view of the reinforcing material, and (b) is an end view of the reinforcing material attached to the metal frame portion of the upper frame. [Figure 10] 10A and 10B show a reinforcing material according to a fourth modified example of the present invention, in which (a) is an end view of the reinforcing material, and (b) is an end view of the reinforcing material attached to the metal frame portion of the upper frame. DETAILED DESCRIPTION OF THE INVENTION

[0009] Preferred embodiments of the fittings according to the present invention will be described in detail below with reference to the accompanying drawings. Note that, for convenience, the terms "invisible direction" and "visible direction" will be used below. The "invisible direction" is the direction along the depth of the fittings, as indicated by arrow A in the drawings. A surface along the invisible direction will be referred to as a "visible face." The "visible direction" is the direction perpendicular to the invisible direction in the case of an object that extends horizontally, such as a sill. In the case of an object that extends vertically, such as a vertical frame, the "visible direction" is the horizontal direction perpendicular to the invisible direction. A surface along the invisible direction will be referred to as a "visible face."

[0010] 1 to 3 show a fixture according to an embodiment of the present invention. The fixture exemplified here is a so-called fixed window that is applied to a building or other structure with a concrete skeleton B, such as reinforced concrete or aluminum-alloy (ALC), and includes a panel 1 and a frame 10 provided around the panel 1. The panel 1 is a surface material having a rectangular outer shape, and is made of, for example, double-glazed glass. The frame 10 is formed by assembling an upper frame (frame material) 11, a lower frame (frame material) 12, and left and right vertical frames (frame materials) 13 all around. The upper frame 11, lower frame 12, and vertical frames 13 that make up the frame 10 each include a metal frame portion that is an extruded shape formed from a metal such as an aluminum alloy, and a resin frame portion that is an extruded shape formed from a resin.

[0011] As shown in Figures 2 and 4(b), the metal frame portion 21 of the upper frame 11 is integrally formed with an upper recessed wall portion (recessed wall portion) 21a, an upper outer recessed wall portion 21b, an upper inner recessed wall portion 21c, an upper resin frame fitting portion 21d, an upper anchor mounting portion (anchor mounting portion) 21e, an upper outer peripheral recessed wall portion (outer peripheral recessed wall portion) 21f, and upper screw holes (screw-receiving portions) 21g. The upper recessed wall portion 21a is a plate-like portion extending approximately horizontally along the recessed direction. The upper outer recessed wall portion 21b and the upper inner recessed wall portion 21c form an upper panel housing portion (panel housing portion) 21h that houses the upper edge of the panel 1 between them, and extend approximately parallel to each other from the upper recessed wall portion 21a toward the inner periphery. In the illustrated example, an upper outer sight wall 21b is provided on the edge of the upper projection wall 21a facing the exterior of the room, and an upper inner sight wall 21c is provided in the approximate middle of the upper projection wall 21a. An upper pocket 21i is provided on the extended edge of the upper outer sight wall 21b facing the interior of the room, and an upper resin frame engaging portion 21j is provided on the extended edge of the upper inner sight wall 21c facing the exterior of the room. The upper pocket 21i protrudes from the upper outer sight wall 21b and opens toward the interior of the room. The upper resin frame engaging portion 21j protrudes from the extended edge of the upper inner sight wall 21c toward the exterior of the room. The upper resin frame fitting portion 21d is provided on the edge of the upper projection wall 21a facing the interior of the room, and is shaped like a slit that opens toward the inner periphery. The upper anchor mounting portion 21e is used to mount the anchor member D1 that supports the upper frame 11 on the concrete skeleton B, and has an inner mounting piece (mounting piece) 21e1 on the indoor side and an outer mounting piece (mounting piece) 21e2 on the outdoor side. The inner mounting piece 21e1 extends from the indoor-side edge of the upper projection wall portion 21a toward the outer periphery and then bends toward the outdoor side. The outer mounting piece 21e2 extends from a portion of the upper projection wall portion 21a that is midway between the upper outer sight wall portion 21b and the upper inner sight wall portion 21c toward the outer periphery and then bends toward the indoor side. The upper outer periphery sight wall portion 21f extends from the outdoor-side edge of the upper projection wall portion 21a toward the outer periphery.The extension dimension of upper outer peripheral sight wall portion 21f toward the outer periphery is approximately equal to the extension dimension of outer mounting piece 21e2. Upper screw hole 21g has center hole 21g1 into which a connecting screw (not shown) is threaded when connecting the upper end of vertical frame 13, which will be described later, and each upper screw hole 21g has a cylindrical shape that follows the longitudinal direction of upper frame 11. In this embodiment, the upper screw holes 21g are provided in a total of three locations: a portion on the outer peripheral surface of upper sight wall portion 21a between outer mounting piece 21e2 and inner mounting piece 21e1, a portion between outer mounting piece 21e2 and upper outer peripheral sight wall portion 21f, and a portion on the inner peripheral surface of upper sight wall portion 21a that forms an interior corner between upper inner sight wall portion 21c and upper inner sight wall portion 21c. As is clear from the figure, upper screw holes 21g provided on the outer periphery of upper visible wall portion 21a have slits 21g2 on the outer periphery, and upper screw holes 21g provided on the inner periphery of upper visible wall portion 21a have slits 21g2 diagonally located on the inner periphery toward the room. Slits 21g2 are formed with a width narrower than the inner diameter of center hole 21g1 of upper screw hole 21g.

[0012] As shown in FIG. 2, the resin frame portion 22 of the upper frame 11 covers the interior portion of the metal frame portion 21 of the upper frame 11, extending from the inner peripheral edge of the upper inner sight wall portion 21c. The resin frame portion 22 is integrally molded with an upper resin frame main body 22a, an upper fitting fin portion 22b, an upper mounting fin portion 22c, and an upper engaging fin portion 22d. The upper resin frame main body 22a has a horizontally elongated rectangular tubular cross section. The upper fitting fin portion 22b extends from an outer peripheral corner located on the interior side of the upper resin frame main body 22a toward the outer periphery. The upper mounting fin portion 22c extends from an outer peripheral corner located on the interior side of the upper resin frame main body 22a toward the interior side. The upper engaging fin portion 22d extends from an inner peripheral corner located on the exterior side of the upper resin frame main body 22a toward the exterior side, then bends toward the outer periphery and then bends toward the interior side. The resin frame portion 22 of the upper frame 11 is attached to the metal frame portion 21 of the upper frame 11 by engaging the upper engagement fin portion 22d with the upper resin frame engagement portion 21j and by fitting the upper fitting fin portion 22b with the upper resin frame fitting portion 21d.

[0013] As shown in Figures 2 and 5, the metal frame portion 23 of the lower frame 12 is integrally molded with a lower metal frame body 23a, a lower outer sight wall 23b, a lower inner sight wall 23c, a lower resin frame fitting 23d, a lower anchor mounting portion (anchor mounting portion) 23e, and lower screw holes 23f. The lower metal frame body 23a has an outer lower metal body portion 23a1 extending approximately horizontally along the projection direction and an inner lower metal body portion 23a2 extending gradually inward from the interior edge of the outer lower metal body portion 23a1 toward the interior. A lower hollow portion 23g is formed on the outer periphery of the outer lower metal body portion 23a1, which is closer to the interior of the room. A drip piece 23h is provided on the exterior outer peripheral edge of the lower hollow portion 23g. The lower hollow portion 23g is composed of an indoor-side projection plate portion 23g1 and an outdoor-side projection plate portion 23g2 that are approximately parallel to each other, an outer peripheral plate portion 23g3 that connects the outer peripheral edges of these indoor-side projection plate portion 23g1 and outdoor-side projection plate portion 23g2, and an outer lower metal main body portion 23a1. The drip piece 23h extends from the outer peripheral corner that is on the outdoor side of the lower hollow portion 23g toward the outer periphery. The lower outer sight wall portion 23b and the lower inner sight wall portion 23c form a lower panel accommodating portion (panel accommodating portion) 23i that accommodates the lower edge of the panel 1 between them, and extend approximately parallel to each other from the outer lower metal main body portion 23a1 toward the inner periphery. In the illustrated example, a lower outer sight wall 23b is provided on the outer edge of the outer lower metal body 23a1 facing the room, and a lower inner sight wall 23c is provided on the inner side of the outer lower metal body 23a1. The distance between the lower outer sight wall 23b and the lower inner sight wall 23c is the same as the distance between the upper outer sight wall 21b and the upper inner sight wall 21c of the upper frame 11. The lower outer sight wall 23b has a lower pocket 23j on the extended edge facing the room, and the lower inner sight wall 23c has a lower resin frame engagement portion 23k on the extended edge facing the room. The lower pocket 23j protrudes from the lower outer sight wall 23b and opens toward the room. The lower resin frame engaging portion 23k is provided so as to protrude from the extended edge of the lower inner sight wall portion 23c toward the outside of the room.The lower resin frame fitting portion 23d is provided on the interior-facing edge of the inner lower metal main body portion 23a2 and has a slit-like shape that opens to the inner periphery. The lower anchor mounting portion 23e is used to mount an anchor member D2 that supports the lower frame 12 on the concrete skeleton B, and has an interior mounting piece (mounting piece) 23e1 on the interior side and an exterior mounting piece (mounting piece) 23e2 on the exterior side. The interior mounting piece 23e1 extends from the interior-facing edge of the inner lower metal main body portion 23a2 toward the outer periphery and then bends toward the exterior. The exterior mounting piece 23e2 extends from approximately the middle of the outer periphery of the outer peripheral plate portion 23g3 that constitutes the lower hollow portion 23g toward the outer periphery and then bends toward the interior side. The lower screw holes 23f are cylindrical holes that extend along the length of the lower frame 12, and a connecting screw (not shown) is threaded into the center hole 23f1 of the lower screw hole 23f when connecting the lower end of the vertical frame 13 (described later). In this embodiment, the lower screw holes 23f are provided in a total of three locations: the visible surface of the lower inner visible wall 23c that faces the interior of the room, the visible surface that faces the outer periphery of the lower inner metal body 23a2, and the interior corner of the room between the outer periphery plate 23g3 and the drip edge 23h.

[0014] As shown in Figure 2, the resin frame portion 24 of the lower frame 12 covers the portion of the metal frame portion 23 of the lower frame 12 that extends from the inner peripheral edge of the lower inner sight wall portion 23c toward the interior of the vehicle. It is an integrally molded lower resin frame body 24a, lower fitting fin portion 24b, lower mounting fin portion 24c, and lower engaging fin portion 24d. The lower resin frame body 24a has an outer resin body portion 24a1 with a horizontally elongated rectangular cylindrical cross-section and an inner resin body portion 24a2 with a horizontally elongated rectangular cross-section that extends from the interior edge of the outer resin body portion 24a1 toward the vehicle interior. The lower fitting fin portion 24b extends from the outer peripheral corner located on the interior side of the inner resin body portion 24a2 toward the exterior in the sight direction. The lower mounting fin 24c extends from an inner peripheral corner located on the indoor side of the inner resin main body 24a2 toward the indoor side. The lower engaging fin 24d extends from an inner peripheral corner located on the outdoor side of the outer resin main body 24a1 toward the outdoor side, then bends toward the outdoor side, and then bends again toward the indoor side. The resin frame 24 of the lower frame 12 is attached to the metal frame 23 of the lower frame 12 by engaging the lower engaging fin 24d with the lower resin frame engaging portion 23k and by fitting the lower fitting fin 24b with the lower resin frame fitting portion 23d.

[0015] The metal frame portion 25 of the vertical frame 13 is configured to be symmetrical on the left and right. As shown in Figures 3 and 6(b), it comprises a side metal frame body (front wall portion) 25a, an outer ledge engagement portion 25b, an outer resin frame engagement portion 25c, a side outer sight wall portion 25d, an inner ledge engagement portion 25e, a side resin frame fitting portion 25f, a side anchor mounting portion (anchor mounting portion) 25g, and a side outer peripheral sight wall portion (outer peripheral sight wall portion) 25h, which are integrally molded. The side metal frame body 25a comprises an outer metal body portion 25a1 having a rectangular cylindrical cross section and an inner metal body portion 25a2, which is a plate-like member extending from the outer peripheral edge of the outer metal body portion 25a1 facing the interior toward the interior. The outer metal body portion 25a1 is configured so that its front dimension is longer than its front dimension. The dimension of the outer metal body portion 25a1 along the projection direction is approximately the same as the distance between the upper outer sight wall portion 21b and the upper inner sight wall portion 21c provided on the upper frame 11. The outer ledge engagement portion 25b protrudes inward from the projection surface on the inner periphery of the outer metal body portion 25a1 and then bends toward the interior of the vehicle. The outer resin frame engagement portion 25c protrudes toward the interior from the projection surface of the outer metal body portion 25a1 facing the vehicle and then bends toward the interior. The side outer sight wall portion 25d extends inward from the inner peripheral edge of the outer metal body portion 25a1 facing the vehicle exterior. A side pocket portion 25i is provided on the side outer sight wall portion 25d at the portion of the extended edge facing the vehicle interior. The side pocket portion 25i protrudes from the side outer sight wall portion 25d and opens toward the interior of the room. The inner ledge engagement portion 25e extends inward from the inner peripheral edge of the outer metal main body portion 25a1, which faces the interior of the room, and then extends toward the exterior. A ledge 26 is attached between this inner ledge engagement portion 25e and the outer ledge engagement portion 25b. The ledge 26 is composed of a metal ledge portion 26A formed from a metal such as an aluminum alloy and a resin ledge portion 26B formed from a resin. The metal ledge portion 26A extends inward from the inner ledge engagement portion 25e and forms a side panel storage portion (panel storage portion) 25j between the inner ledge engagement portion 25e and the side outer sight wall portion 25d, which stores the side edge of the panel 1.The resin ridge 26B is attached to the inner periphery of the metal ridge 26A, covering the inner periphery of the metal ridge 26A and its interior-facing surface. In the illustrated example, the resin ridge 26B has a rectangular cylindrical cross-section. The outer corners of the resin ridge 26B, located on the interior side of the room, are provided with resin frame engagement fins 26a. The side resin frame fitting 25f is provided on the interior-facing edge of the inner metal body 25a2 and has a slit-like opening on the inner periphery. The side anchor mounting 25g is used to mount the anchor member D3 that supports the vertical frame 13 on the concrete structure B. It has an inner mounting piece (mounting piece) 25g1 on the interior side and an outer mounting piece (mounting piece) 25g2 on the exterior side. The inner mounting piece 25g1 extends from the interior-facing edge of the inner metal main body 25a2 toward the outer periphery and then bends toward the exterior. The outer mounting piece 25g2 extends from approximately the middle of the outer periphery of the outer metal main body 25a1 toward the outer periphery and then bends toward the interior. An engaging protrusion 25g3 protrudes toward the exterior from the extending edge of the outer mounting piece 25g2. The side outer peripheral sight wall 25h extends from the exterior-facing edge of the outer metal main body 25a1 toward the outer periphery. An engaging protrusion 25h1 protrudes toward the interior from the extending edge of the side outer peripheral sight wall 25h. The extension dimension of the side outer peripheral sight wall 25h toward the outer periphery is approximately equal to the extension dimension of the outer mounting piece 21e2. An engaging protrusion 25h1 provided on the side outer peripheral sight wall 25h is provided at a position facing an engaging protrusion 25g3 provided on the outer mounting piece 21e2.

[0016] The resin frame portion 27 of the vertical frame 13 covers the portion of the metal frame portion 25 of the vertical frame 13 from the outer resin frame engaging portion 25c toward the interior side of the vehicle, and is formed by integrally molding a side resin frame main body 27a, side fitting fins 27b, side mounting fins 27c, side engaging fins 27d, and side engaging protrusions 27e. The side resin frame main body 27a has a rectangular tubular cross-section whose dimension in the front-view direction is longer than its dimension in the front-view direction. The side fitting fins 27b extend in the front-view direction from an outer peripheral corner located on the interior side of the side resin frame main body 27a toward the outer periphery. The side mounting fins 27c extend in the front-view direction from an inner peripheral corner located on the interior side of the side resin frame main body 27a toward the interior side. The side engagement fins 27d extend from the outer peripheral edge located on the exterior side of the side resin frame main body 27a in the forward direction toward the exterior side of the room, and then bend toward the exterior. The side engagement protrusions 27e protrude toward the exterior from the exterior face of the side resin frame main body 27a. The resin frame portion 27 of the vertical frame 13 is attached to the metal frame portion 25 of the vertical frame 13 by engaging the side engagement fins 27d with the outer resin frame engaging portions 25c and by engaging the side fitting fins 27b with the side resin frame fitting portions 25f. The side engagement protrusions 27e provided on the side resin frame main body 27a engage with the resin frame engagement fins 26a of the resin push edge portion 26B.

[0017] The above-mentioned upper frame 11, lower frame 12, and vertical frame 13 constitute frame body 10 by threading a connecting screw (not shown) into center hole 21g1 of upper screw hole 21g through metal frame portion 25 of vertical frame 13 with upper frame 11 positioned between the upper ends of left and right vertical frames 13, and threading a connecting screw (not shown) into center hole 23f of lower screw hole 23f through metal frame portion 25 of vertical frame 13 with lower frame 12 positioned between the lower ends of left and right vertical frames 13. Although not shown in the figure, planar sealing materials are interposed between the fore-end face of upper frame 11 and vertical frame 13, and between the fore-end face of lower frame 12 and vertical frame 13, respectively. In the upper panel accommodating section 21h of the top frame 11, the upper edge of the panel 1 is supported between the upper outer sight wall 21b and the upper inner sight wall 21c via a sealant S, and in the lower panel accommodating section 23i of the bottom frame 12, the lower edge of the panel 1 is supported between the lower outer sight wall 23b and the lower inner sight wall 23c via a sealant S. In the side panel accommodating section 25j of the vertical frame 13, the side edge of the panel 1 is supported between the ledge 26 and the side outer sight wall 25d via a sealant S.

[0018] As shown in Figures 2 and 3, this FIX window is supported on concrete frame B by attaching anchor members D1, D2, and D3 to anchor mounting points 21e, 23e, and 25g, respectively, and welding anchor members D1, D2, and D3 to angle members E on the frame B side. Furthermore, outer frames G are attached to upper peripheral sight wall 21f and side peripheral sight wall 25h of top frame 11 and vertical frame 13 via attachments F, respectively. On the indoor side of frame 10, mounting fins 22c, 24c, and 27c are attached to inner frames H.

[0019] In dry construction where mortar is not filled between the skeleton B and the frame 10, if an external force acts on the panel 1 to move it outside the room, the external force is applied to the frame 10 via the outer sight walls 21b, 23b, and 25d. This may cause, for example, the upper frame 11 to deform in a manner that the portion located outside the room beyond the outer mounting piece 21e2 expands toward the periphery. The vertical frame 13 may also deform in a manner that the portion located outside the room beyond the outer mounting piece 25g2 expands toward the periphery. For this reason, in this fitting, reinforcing materials are provided in the portions of the upper frame 11 and the vertical frame 13 that are outside the room beyond the outer mounting pieces 21e2 and 25g2.

[0020] The reinforcing member 30 attached to the upper frame 11 is an extruded member made of a metal such as an aluminum alloy. As shown in FIG. 4, the reinforcing member 30 includes an upper reinforcing base 30a, two upper support walls 30b, and two engaging pieces 30c. The upper reinforcing base 30a is flat and extends along the projection direction. Its dimensions allow it to be positioned between the upper outer peripheral sight wall 21f and the outer mounting piece 21e2 of the upper frame 11. The upper support walls 30b extend from both side edges of the upper reinforcing base 30a toward the inner periphery so as to be substantially parallel to each other. The extension dimension of the upper support walls 30b is set so that when the extending edge is abutted against the outer periphery of the upper projection wall 21a, the outer peripheral surface of the upper reinforcing base 30a is positioned on substantially the same plane as the extending edge of the upper outer peripheral sight wall 21f. The engagement pieces 30c extend substantially parallel to each other from the inner peripheral surface of the upper reinforcing base 30a at portions corresponding to the upper screw holes 21g, and then the extending edges are bent toward each other. The spacing between the engagement pieces 30c is greater than the outer diameter of the upper screw holes 21g. The extension dimension of the engagement pieces 30c is smaller than that of the upper support wall 30b, and is sized to allow them to engage with the engagement receiving portions 31 (described below) provided in the upper screw holes 21g.

[0021] Meanwhile, the upper frame 11 has an engagement receiving portion 31 in the upper screw hole 21g between the outer mounting piece 21e2 and the upper outer peripheral visible wall portion 21f. The engagement receiving portion 31 extends approximately horizontally from both sides of the slit 21g2 on the outer periphery of the upper screw hole 21g in directions away from each other. Both engagement receiving portions 31 protrude outward beyond the outer periphery of the upper screw hole 21g. When the upper frame 11 having this engagement receiving portion 31 is inserted from the fore-end face of the upper frame 11 with the bent edge of the engagement piece 30c positioned between the engagement receiving portion 31 and the upper visible wall portion 21a, the engagement piece 30c engages with the engagement receiving portion 31, thereby maintaining the reinforcing member 30 positioned on the outer peripheral side of the upper visible wall portion 21a. Although not shown in the figure, the reinforcing member 30 is provided along almost the entire length of the upper frame 11. More specifically, the reinforcing material 30 is formed to a size that is slightly shorter than the upper frame 11 and that allows it to be attached while being pressed against the planar sealing material provided on the vertical frame 13. The reinforcing material 30 attached to the upper frame 11 defines a hollow portion 32 between the upper reinforcing base portion 30a and the two upper support wall portions 30b and the upper projected wall portion 21a, making it possible to prevent the portion of the upper frame 11 that is on the outdoor side beyond the outer mounting piece 21e2 from deforming toward the outer periphery.

[0022] The reinforcement member 40 attached to the vertical frame 13 is an extruded member made of a metal such as an aluminum alloy. As shown in FIG. 6, it has a side reinforcement base (reinforcement base) 40a and two side support walls (support walls) 40b. The side reinforcement base 40a is a flat plate extending along the projection direction and has a width that allows it to be placed between the side peripheral sight wall 25h of the vertical frame 13 and the outer mounting piece 25g2. The side support walls 40b extend perpendicularly from both side edges of the side reinforcement base 40a so that they are approximately parallel to each other. The extension dimension of the side support walls 40b is set so that when the extended edge abuts against the outer peripheral surface of the outer metal main body portion 25a1, the outer peripheral surface of the side reinforcement base 40a is positioned approximately on the same plane as the extended edge of the side peripheral sight wall 25h. The corners between the side reinforcing bases 40a and the side support walls 40b are provided with engaging recesses 40c into which the engaging protrusions 25g3 of the outer mounting pieces 25g2 and the engaging protrusions 25h1 of the side peripheral sight walls 25h can be positioned. When the side support walls 40b are inserted into the vertical frame 13 from the small end face with the engaging protrusions 25g3 and 25h1 of the outer mounting pieces 25g2 and the side support walls 40b positioned between the engaging protrusions 25g3 and 25h1 of the outer peripheral sight walls 25h and the outer metal body 25a1, the engaging recesses 40c engage with the engaging protrusions 25g3 and 25h1, thereby maintaining the reinforcing member 40 positioned on the outer peripheral side of the outer metal body 25a1. Although not shown in the drawings, the reinforcing member 40 is provided along substantially the entire length of the vertical frame 13. The reinforcing material 40 attached to the vertical frame 13 forms a hollow portion 41 between the side reinforcing base 40a and the two side support wall portions 40b and the outer metal main body portion 25a1, making it possible to prevent the portion of the vertical frame 13 that is on the outside of the room beyond the outer mounting piece 25g2 from deforming toward the outer periphery.

[0023] As described above, the reinforcing members 30, 40 are provided separately for the upper frame 11 and the vertical frame 13. Therefore, when dry construction is performed using these upper frame 11 and vertical frame 13, the hollow portions 32, 41 can be formed by attaching the reinforcing member 40, thereby preventing deformation of the upper frame 11 and the vertical frame 13, and when wet construction is performed, the reinforcing member 40 can be attached to the framework B without attaching it, thereby reducing manufacturing costs.

[0024] In the above-described embodiment, reinforcing materials are provided on the upper frame 11 and the vertical frame 13, but reinforcing materials may also be provided on the lower frame 12. In this case, it is not necessary to provide reinforcing materials 40 on multiple frame materials; for example, reinforcing material 40 may be provided only on the upper frame 11. Also, while a fixed window is exemplified as the fixture, application to fixtures other than fixed windows, such as tilt-down windows, is also possible. Furthermore, while the frame materials 11, 12, and 13 that make up the frame body are exemplified as having a metal frame portion and a resin frame portion, the present invention is not limited to this, and frame materials formed solely from metal or resin may also be used.

[0025] In the above-described embodiment, the upper screw holes 21g are provided with the engagement receiving portions 31, and the reinforcing material 30 has the engagement pieces 30c that engage with the engagement receiving portions 31, but the present invention is not limited to this. For example, the frame and reinforcing material may be configured as in Modifications 1 to 4 shown below.

[0026] (Variation 1) In the reinforcing member 50 of Modification 1 shown in FIG. 7, an insertion portion 50c is provided on the upper reinforcing base 30a of the reinforcing member 50 instead of the engagement piece 30c described in the embodiment. The insertion portion 50c extends from the inner peripheral surface of the upper reinforcing base 30a and includes a base portion 50c1 having a thickness that allows insertion into the slit 21g2 of the upper screw hole 21g, and a wide portion 50c2 provided at the tip of the base portion 50c1. The wide portion 50c2 is configured to be insertable into the center hole 21g1 of the upper screw hole 21g and to have a width greater than the slit 21g2. Similar to the embodiment, the reinforcing member 50 of Modification 1 is formed from a metal such as an aluminum alloy. Furthermore, the upper frame 11 of Modification 1 has two upper screw holes 21g that do not have engagement receiving portions 31. When the inserting portion 50c is inserted into the small end face of the upper frame 11 with the inserting portion 50c positioned in the slit 21g2 of the upper screw hole 21g, the wide portion 50c2 of the inserting portion 50c engages with the inner circumferential surface of the center hole 21g1, maintaining the reinforcing member 50 positioned on the outer circumferential side of the upper recessed wall portion 21a. As in the embodiment, the reinforcing member 50 is provided along almost the entire length of the upper frame 11. However, although not shown in the figure, the inserting portion 50c is shorter than the upper reinforcing base 30a so that, when inserted into the center hole 21g1 of the upper screw hole 21g, mounting space is provided at both ends of the upper screw hole 21g. Although not shown in the figure, the mounting space is a void large enough to accommodate the connecting screw (not shown). The reinforcing member 50 attached to the upper frame 11 defines a hollow portion 51 between the upper reinforcing base 30a and the two upper support wall portions 30b and the upper projecting wall portion 21a, making it possible to prevent the portion of the upper frame 11 that is on the outside of the room beyond the outer mounting piece 21e2 from deforming toward the outer periphery. Moreover, because mounting space is secured at both ends of the upper screw hole 21g, there is no risk of the insertion portion 50c interfering with the connecting screw (not shown) when connecting to the vertical frame 13. In Modification 1, the same components as those in the embodiment are designated by the same reference numerals.

[0027] (Variation 2) In Modification 2 shown in FIG. 8 , a reinforcing member 60 is used that does not include the engagement piece 30c shown in the embodiment. That is, the reinforcing member 60 of Modification 2 includes an upper reinforcing base 30a and two upper support walls 30b. The upper reinforcing base 30a has multiple screw insertion holes 60a along its length in a portion corresponding to the upper screw holes 21g. Similarly to Modification 1, the upper frame 11 of Modification 2 also has two upper screw holes 21g without engagement receiving portions 31. With the upper frame 11, screws (connectors) 61 are threaded into the upper screw holes 21g via the upper reinforcing base 30a while the extended edges of the upper support walls 30b are abutted against the upper projected walls 21a. This allows the reinforcing member 60 to be maintained in a position on the outer periphery of the upper projected walls 21a. As in the embodiment, the reinforcing member 60 is provided along substantially the entire length of the upper frame 11. The reinforcing member 60 attached to the upper frame 11 forms a hollow portion 62 between the upper reinforcing base 30a and the two upper support wall portions 30b and the upper projecting wall portion 21a, making it possible to prevent the portion of the upper frame 11 that is on the outdoor side of the outer mounting piece 21e2 from deforming toward the outer periphery. Moreover, since the cross-sectional shape of the reinforcing member 60 is simple, it can also be formed from steel. In the second modification, the same components as those in the embodiment are designated by the same reference numerals.

[0028] (Variation 3) In the reinforcing member 70 of Modification 3 shown in FIG. 9, the two upper support walls 30b shown in the embodiment are omitted, but two support protrusions 70c are provided on the upper reinforcing base 30a in the portion between the engagement pieces 30c. The support protrusions 70c are formed to have dimensions that allow them to abut on the outer periphery of the upper screw hole 21g when the engagement pieces 30c are engaged with the engagement receptacles 31 of the upper screw hole 21g, which will be described later. The reinforcing member 70 of Modification 3 is formed from a metal such as an aluminum alloy, as in the embodiment. Furthermore, the upper frame 11 of Modification 3 has engagement receptacles 31 provided in the upper screw hole 21g, as in the embodiment. When the upper frame 11 is inserted from the small end face of the upper frame 11 with the bent edge of the engagement piece 30c positioned between the engagement receptacle 31 and the upper visible wall portion 21a and the support protrusion 70c positioned on the outer periphery of the upper screw hole 21g, the engagement piece 30c engages with the engagement receptacle 31, thereby maintaining the reinforcing material 70 positioned on the outer periphery of the upper visible wall portion 21a. As in the embodiment, the reinforcing material 70 is provided along almost the entire length of the upper frame 11. When the reinforcing material 70 is attached to the upper frame 11, a hollow portion 71 is formed between the upper reinforcing base 30a and the upper visible wall portion 21a, the upper outer periphery visible wall portion 21f, and the outer attachment piece 21e2, making it possible to prevent the portion of the upper frame 11 that is on the outside of the room from deforming toward the outer periphery.

[0029] (Variation 4) In a reinforcing member 80 of Modification 4 shown in FIG. 10, the upper support wall portion 30b and engagement piece 30c shown in the embodiment are omitted, but instead, stepped-down portions (mounting portions) 80a are provided on both side edges of the upper reinforcing base 30a, and two support protrusions 80b are provided on the upper reinforcing base 30a at portions corresponding to the upper screw holes 21g. The stepped-down portions 80a protrude inward from both side edges of the upper reinforcing base 30a and then bend away from each other, so that the outer surfaces on both sides are inward by the plate thickness. The support protrusions 80b protrude inward from portions of the inner surface of the upper reinforcing base 30a corresponding to the upper screw holes 21g. Similar to the embodiment, the reinforcing member 80 of Modification 4 is formed from a metal such as an aluminum alloy. Furthermore, the upper frame 11 of Modification 4 has engaging protrusions 21k, 21m on the extended edge of the upper outer peripheral sight wall 21f and the extended edge of the outer mounting piece 21e2. The engaging protrusions 21k, 21m have the same configuration as the engaging protrusions 25h1, 25g3 provided on the vertical frame 13 shown in the embodiment. The engaging receptacle 31 shown in the embodiment is omitted from the upper screw hole 21g. With respect to this upper frame 11, if the step-down portion 80a is inserted from the fore-end face of the upper frame 11 with the step-down portion 80a positioned between the engaging protrusions 21k of the upper outer peripheral visible wall portion 21f and the engaging protrusions 21m of the outer mounting piece 21e2 and the upper visible wall portion 21a, respectively, and the support protrusions 80b positioned on the outer periphery of the upper screw holes 21g, the step-down portion 80a will engage with the engaging protrusions 21k, 21m, thereby maintaining the reinforcing material 80 positioned on the outer periphery of the upper visible wall portion 21a. This reinforcing material 80 is provided over almost the entire length of the upper frame 11, as in the embodiment. The reinforcing material 80 attached to the upper frame 11 forms a hollow portion 81 between the upper reinforcing base 30a and the upper visible wall portion 21a, the upper outer peripheral visible wall portion 21f, and the outer mounting piece 21e2, making it possible to prevent the portion of the upper frame 11 that is on the outside of the room beyond the outer mounting piece 21e2 from deforming toward the outer periphery.

[0030] As described above, the building fixture of the present invention is a building fixture in which an anchor mounting portion is provided on the frame material that constitutes the frame body, and the frame material is supported on the main body via an anchor member attached to the anchor mounting portion, and the frame material is provided with a panel accommodating portion so that at least a portion of it is on the outside of the room relative to the anchor mounting portion, and a hollow portion is formed by attaching a reinforcing material to the outer periphery of the panel accommodating portion in the portion that is on the outside of the room relative to the anchor mounting portion. According to this invention, by attaching the reinforcing material, a hollow portion is formed in the portion outside the room, beyond the anchor attachment portion, which is advantageous in terms of strength compared to when the panel housing portion is simply constructed using a plate-shaped member. Therefore, there is no risk of strength problems occurring even in dry construction. Moreover, when the frame material is used for both wet construction and dry construction, the reinforcing material can be omitted, which reduces manufacturing costs.

[0031] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material is provided with a projected wall portion extending along the projected direction and having the panel accommodating portion configured on its inner periphery, and the reinforcing material has a reinforcing base arranged opposite the projected wall portion and a support wall portion extending from the indoor side edge and the outdoor side edge of the reinforcing base toward the projected wall portion, respectively, and is supported by the frame material with the support wall portion abutting the projected wall portion. According to this invention, a hollow portion is formed between the reinforcing base provided on the reinforcing material, the two support wall portions, and the concealed wall portion of the frame material.

[0032] The present invention is also characterized in that, in the above-mentioned building fixture, the reinforcing material has an attachment portion that supports the reinforcing base on the frame material, and is supported on the frame material via the attachment portion. According to this invention, the reinforcing material is supported on the frame material via the mounting portion, so there is no risk of it accidentally falling off the frame material.

[0033] The present invention is also characterized in that, in the above-mentioned building fixture, the reinforcing material is supported by the frame material by attaching a connector to the frame material via the support wall portion. According to this invention, the reinforcing material is supported on the frame material via connecting devices such as screws, so the shape of the reinforcing material does not become complicated and there is no risk of it accidentally falling off the frame material.

[0034] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material is provided with a projected wall portion that extends along the projected direction and on whose inner periphery the panel accommodating portion is configured, and the edge of the projected wall portion on the outside of the room is provided with a peripheral sight wall portion that extends in the projected direction toward the outer periphery, the anchor mounting portion has two mounting pieces that extend from the projected wall portion toward the outer periphery, and the reinforcing material has a reinforcing base that extends in the projected direction between the peripheral sight wall portion and the mounting pieces, and an attachment portion that supports the reinforcing base on the frame material, and is supported on the frame material via the attachment portions. According to this invention, a hollow portion is formed between the reinforcing base of the reinforcing material and the projecting wall portion, the outer peripheral projecting wall portion, and the mounting piece of the frame material, and the reinforcing material is supported on the frame body via the mounting portion, so the shape of the reinforcing material does not become complicated and there is no risk of it accidentally falling off the frame material.

[0035] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material has a screw-receiving portion provided on the outer periphery of the projected wall portion, the screw-receiving portion has an engaging portion provided on the screw-receiving portion, and the mounting portion has an engaging portion that engages with the engaging portion to support the reinforcing base on the frame material. According to this invention, the reinforcing material can be supported on the frame material by utilizing the screw-receiving portions such as screw holes used when connecting the frame materials together.

[0036] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material has a screw-receiving portion on the outer periphery of the projected wall portion, the screw-receiving portion has a slit, and the mounting portion has an insertion portion that is inserted into the slit. According to this invention, the reinforcing material can be supported on the frame material by utilizing the screw-receiving portions such as screw holes used when connecting the frame materials together. The length of the insertion portion is preferably set so that, when inserted into the screw-receiving portion, mounting space can be secured at both ends of the screw-receiving portion to allow mounting of connectors for fixing the frame material.

[0037] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material is provided with a projected wall portion that extends along the projected direction and has the panel accommodating portion configured on its inner periphery, and the edge of the projected wall portion that faces the outside of the room is provided with a peripheral sight wall portion that extends in the projected direction toward the outer periphery, and the projected wall portion is provided with a screw-receiving portion on the outer periphery side, and the anchor mounting portion has two mounting pieces that extend from the projected wall portion toward the outer periphery, and the peripheral sight wall portion and the mounting piece on the outside of the room are provided with engaging protrusions that face toward each other on their outer periphery edge portions, and the reinforcing material has a reinforcing base that extends in the projected direction between the projected wall portion and the mounting piece, and a support protrusion that abuts the reinforcing base against the screw-receiving portion, and when the support protrusion is abutted against the screw-receiving portion, the outdoor edge and indoor edge of the reinforcing base each engage with the engaging protrusion, so that the reinforcing base is supported by the frame material. According to this invention, the reinforcing material can be supported by the frame material by abutting the support protrusions on the screw-receiving portions and by arranging both side edges of the reinforcing base portion to face the inner peripheral surfaces of the engaging protrusions.

[0038] The present invention is also characterized in that, in the above-mentioned building fixture, the frame material is provided with a projected wall portion that extends along the projected direction and has the panel accommodating portion configured on its inner periphery, and the edge of the projected wall portion on the outside of the room is provided with a peripheral sight wall portion that extends in the projected direction toward the outer periphery, the anchor mounting portion has two mounting pieces that extend from the projected wall portion toward the outer periphery, and the peripheral sight wall portion and the outside-of-room mounting piece are provided with engaging protrusions that face toward each outer periphery edge, and the reinforcing material has a reinforcing base that extends in the projected direction between the projected wall portion and the mounting piece, and a support wall portion that extends from the inside edge and the outside edge of the reinforcing base toward the projected wall portion, respectively, and the reinforcing base is supported by the frame material by interposing the support wall portions between the projected wall portion and the engaging protrusions, respectively. According to this invention, by disposing the support wall portion between the projection wall portion and the engaging protrusion, the reinforcing material can be supported by the frame material. [Explanation of symbols]

[0039] 10 frame body, 11 upper frame, 12 lower frame, 13 vertical frame, 21a upper projection wall portion, 21e upper anchor mounting portion, 21e1, 23e1, 25g1 inner mounting piece, 21e2, 23e2, 25g2 outer mounting piece, 21f upper outer peripheral sight wall portion, 21g upper screw hole, 21g1 center hole, 21g2 slit, 21h upper panel accommodating portion, 21k, 21m, 25g3, 25h1 engaging protrusion, 23e lower anchor mounting portion, 23i lower panel accommodating portion, 25a side metal frame body, 25g side anchor mounting portion, 25h side outer peripheral sight wall portion, 25j side panel accommodating portion, 30, 40, 50, 60, 70, 80 reinforcement material, 30a upper reinforcement base, 30b Upper support wall portion, 30c engagement piece, 31 engagement receiving portion, 32, 41, 51, 62, 71, 81 hollow portion, 40a side reinforcement base portion, 40b side support wall portion, 50c insertion portion, 61 screw, 70c support protrusion, 80a step-down portion, 80b support protrusion, B body, D1, D2, D3 anchor member

Claims

1. A fitting in which an anchor mounting portion is provided on a frame material that constitutes a frame body, and the frame material is supported on a skeleton via an anchor member attached to the anchor mounting portion, The frame material is provided with a panel accommodating portion such that at least a portion of the panel accommodating portion is located outside the room relative to the anchor mounting portion, A building fixture characterized in that a hollow section is formed by attaching a reinforcing material to the outer periphery of the panel accommodating section, in a section that is on the outside of the room relative to the anchor mounting section.

2. The frame material is provided with a projection wall portion extending along a projection direction and having the panel accommodating portion configured on an inner peripheral side thereof, The building fixture described in claim 1, characterized in that the reinforcing material has a reinforcing base arranged opposite the projected wall portion, and a support wall portion extending from the indoor side edge and the outdoor side edge of the reinforcing base toward the projected wall portion, and is supported by the frame material with the support wall portion abutting the projected wall portion.

3. The fixture according to claim 2, characterized in that the reinforcing material has an attachment portion that supports the reinforcing base on the frame material, and is supported on the frame material via the attachment portion.

4. 3. The fixture according to claim 2, wherein the reinforcing material is supported by the frame material by attaching a connector to the frame material via the support wall portion.

5. The frame material has a projection wall portion extending along the projection direction, and the panel accommodating portion is formed on the inner periphery side. The edge of the projection wall portion on the outdoor side has an outer peripheral projection wall portion extending in the projection direction toward the outer periphery side. The anchor mounting portion has two mounting pieces extending from the projecting wall portion toward the outer periphery, The building fixture described in claim 1, characterized in that the reinforcing material has a reinforcing base extending in the forward direction between the outer peripheral visible wall portion and the mounting piece, and an attachment portion that supports the reinforcing base on the frame material, and is supported on the frame material via the attachment portion.

6. The frame material is provided with a screw-receiving portion on the outer periphery side of the projected wall portion, The screw-receiving portion is provided with an engagement receiving portion, The fixture according to claim 3 or claim 5, characterized in that the mounting portion has an engaging portion that engages with the engaging receiving portion to support the reinforcing base on the frame material.

7. The frame material is provided with a screw-receiving portion on the outer periphery side of the projected wall portion, The screw-receiving portion is provided with a slit, The fixture according to claim 3 or claim 5, wherein the mounting portion has an insertion portion that is inserted into the slit.

8. The frame material has a projection wall portion extending along the projection direction, and the panel accommodating portion is formed on the inner periphery side. The edge of the projection wall portion on the outdoor side has an outer peripheral projection wall portion extending in the projection direction toward the outer periphery side. The projection wall portion has a screw-receiving portion provided on an outer peripheral side thereof, The anchor mounting portion has two mounting pieces extending from the projecting wall portion toward the outer periphery, The outer peripheral wall portion and the outdoor mounting piece are provided with engagement protrusions at their respective outer peripheral edges in directions approaching each other, The reinforcing material has a reinforcing base portion extending in the projection direction between the projection wall portion and the mounting piece, and a support protrusion portion that abuts the reinforcing base portion against the screw-receiving portion, The fixture described in claim 1, characterized in that when the support protrusion is abutted against the screw-receiving portion, the outdoor edge and indoor edge of the reinforcing base engage with the engaging protrusion, thereby supporting the reinforcing base on the frame material.

9. The frame material has a projection wall portion extending along the projection direction, and the panel accommodating portion is formed on the inner periphery side. The edge of the projection wall portion on the outdoor side has an outer peripheral projection wall portion extending in the projection direction toward the outer periphery side. The anchor mounting portion has two mounting pieces extending from the projecting wall portion toward the outer periphery, The outer peripheral wall portion and the outdoor mounting piece are provided with engagement protrusions at their respective outer peripheral edges in directions approaching each other, The reinforcing material has a reinforcing base extending in the projection direction between the projection wall portion and the mounting piece, and a support wall portion extending from the indoor side edge and the outdoor side edge of the reinforcing base toward the projection wall portion, respectively, and the reinforcing base is supported on the frame material by interposing the support wall portions between the projection wall portion and the engaging protrusion, respectively.

Citation Information

Patent Citations

  • Sash body

    JP2004124355A