Frame and fittings

Abstract

To provide a frame body and a fitting capable of improving fire prevention performance by maintaining screws coming off from screw holes for a predetermined period of time in the event of a fire.SOLUTION: A bottom rail 52 has a hollow portion 525 defined by an outdoor width surface 521, an interior width surface 522, an inner circumferential side depth surface 523 in which a screw hole 526 is formed, and an outer circumferential side depth surface 524. An inner circumferential side depth surface 533 of a vertical stile has an insertion hole 5331 into which an assembly screw 91 screwed into the screw hole 526 is inserted. A reinforcing material 62 placed in the hollow portion 525 of the bottom rail 52 has an inner circumferential depth piece 622 disposed opposite to the inner circumferential side depth surface 523 with the screw hole 526 interposed therebetween in at least a part of the screwing area that is screwed together with the assembly screw 91 of the screw hole 526, and a width piece 621 provided along the outdoor width surface 521. A heating foaming material 86 is provided on the inner circumferential depth piece 622.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a frame and a fitting. [Background technology]

[0002] A known fixture includes an opening frame attached to an opening in a building and an opening / closing body supported on the opening frame so that it can be opened and closed (see, for example, Patent Document 1). The opening / closing body includes, for example, a mounting frame and a window unit, and the mounting frame is configured into a square shape by framing an upper mounting frame, a lower mounting frame, and a pair of vertical mounting frames on all four sides. Specifically, the upper mounting frame and the lower mounting frame have a hollow portion inside, and screw holes are formed facing this hollow portion. Then, the small edges on the left and right ends of the upper and lower mounting frames are abutted against the side surfaces of the left and right vertical mounting frames, and screws are screwed from the vertical mounting frames into each screw hole in the upper and lower mounting frames, so that the mounting frame is configured into a square shape on all four sides.

[0003] The hollows of the upper and lower mounting frames are fitted with metal reinforcing members at both ends that cover the exterior side of the screw-insertion areas where the screws are threaded into the screw holes. This reinforcing member ensures that, even if the frame is heated by a fire or other event, the screw-insertion areas will remain in place for a certain period of time before they are deformed by heat. This allows the frame to maintain its desired shape for a certain period of time even in a moderately heated environment, improving fire resistance. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2014-202036 Summary of the Invention [Problem to be solved by the invention]

[0005] However, because the screw holes are formed in an approximately C-shaped cross section and the opening groove facing the hollow section is continuous in the longitudinal direction, when the mounting frame made of aluminum extrusion is heated, even if the outside of the screw holes is covered with metal reinforcing material, the heat is transferred to the screw holes, softening them and causing the opening groove to widen, causing the screws to come loose. The object of the present invention is to provide a frame and fittings that can prevent screws from coming out of screw holes in the event of a fire, thereby improving fire resistance. [Means for solving the problem]

[0006] The frame of the present invention is a frame formed by framing a pair of first frame members and a pair of second frame members, wherein the first frame members have a hollow portion defined by an exterior facing surface portion, an interior facing surface portion, an inner peripheral facing surface portion, and an outer peripheral facing surface portion, and at least the inner peripheral facing surface portion has screw holes formed therein for placement in the hollow portion, and the second frame members have a contact surface portion against which the end of the first frame member contacts, and assembly screws that are threaded into the screw holes are inserted into the contact surface portion. a through hole formed in the first frame member of the pair of first frames, a metal reinforcing material disposed in the hollow portion of at least one of the first frame members, the reinforcing material having an inner peripheral visible piece disposed opposite the inner peripheral visible surface portion across the screw hole in at least a part of the threaded region that threads with the assembly screw of the screw hole, and a visible piece provided along the exterior visible surface portion, and the inner peripheral visible piece is provided with a heat-foamed material.

[0007] The building fixture of the present invention is a building fixture comprising an opening frame formed in a square shape with a framework on all four sides, and an opening / closing body that is arranged on the opening frame so that it can be opened and closed freely, and is characterized in that the opening / closing body is formed with the frame body. [Effects of the Invention]

[0008] According to the frame and fittings of the present invention, screws can be kept from coming out of screw holes for a predetermined period of time in the event of a fire, thereby improving fire resistance. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is an external view showing a terrace door, which is a fixture according to an embodiment of the present invention. [Figure 2] FIG. 2 is a vertical cross-sectional view of the terrace door of the embodiment. [Figure 3] FIG. 2 is a cross-sectional view of the terrace door of the embodiment. [Figure 4] An oblique view showing the exterior member and reinforcing material of the lower frame of the embodiment. [Figure 5] (A) is a longitudinal cross-sectional view of the bottom frame and reinforcing material, and (B) is a cross-sectional view showing the main parts of the bottom frame and reinforcing material. [Figure 6] FIG. 10 is a cross-sectional view showing the main parts of the vertical frame and reinforcing material. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 3, the door 1 of this embodiment is a terrace door that includes a door frame 2 attached to an opening in a building and a door body 5 arranged within the door frame 2.

[0011] As shown in FIG. 1, the door frame 2 is formed by joining an upper frame 10, a lower frame 20, and left and right vertical frames 30, 40 into a rectangular frame shape. As shown in Figure 2, the upper frame 10 is configured to include an upper frame body 11 made of aluminum extrusion material and a synthetic resin cover material 15. Similarly, as shown in Figures 2 and 3, the lower frame 20 and vertical frames 30, 40 are configured to include a lower frame body 21 and vertical frame bodies 31, 41 made of aluminum extrusion material and synthetic resin cover materials 25, 35, 45. Airtight materials 19, 29, 39, 49 that abut the interior surface of the door body 5 are attached to each cover material 15, 25, 35, 45. These airtight materials 19, 29, 39, 49 prevent outside air from flowing into the interior space through gaps 101-104 between the door frame 2 and the door body 5.

[0012] As shown in Figure 1, the door body 5 is composed of a frame body 5A formed by a top frame 51, a bottom frame 52, and left and right vertical frames 53, 54, and double-pane glass 59 installed inside the frame body 5A. A vertical frame 53 on the hanging side of the door body 5 is attached to the vertical frame 30 on the hanging side of the door frame 2 via a hinge 55. This allows the door body 5 to be attached to the door frame 2 so that it can be opened and closed freely. A handle 56 is attached to a vertical frame 54 on the door tip side of the door body 5. 3, an airtight material 57 is attached to the vertical frame 53 to close the gap 103 on the outdoor side of the airtight material 39. An airtight material 58 is attached to the edge cover portion of the vertical frame 54. As shown in FIG. 2, a door closer 90 is attached to the upper frame 10 and the upper stile 51 of the door body 5.

[0013] [Frame] 1, frame body 5A is a so-called vertical frame body in which the ends of upper frame 51 and lower frame 52 are fixed by abutting them against vertical frames 53 and 54. Therefore, in this embodiment, the first frame members are upper frame 51 and lower frame 52, and the second frame members are vertical frames 53 and 54.

[0014] [Upper stile] As shown in FIG. 2, the upper frame 51 is constructed by combining an exterior member 510 made of aluminum and an interior member 519 made of synthetic resin, thereby improving heat insulation. The exterior member 510 has a hollow portion 515 defined by an exterior facing surface 511, an interior facing surface 512, an inner peripheral facing surface 513, and an outer peripheral facing surface 514. Screw holes 516 and second screw holes 517 are formed in the inner peripheral facing surface 513 and the outer peripheral facing surface 514, and are arranged in the hollow portion 515.

[0015] A reinforcing member 61 made of a metal such as steel or stainless steel is arranged in the hollow portion 515 over substantially the entire longitudinal length of the upper frame 51. The reinforcing member 61 includes a sight piece 611 arranged along the exterior sight surface portion 511 and an inner sight piece 612 arranged opposite the inner sight surface portion 513 with a screw hole 516 in between, and is formed with an L-shaped cross section. The reinforcing material 61 is fixed with a screw 615 that is screwed from the inner peripheral projection surface portion 513 into the inner peripheral projection piece 612. Therefore, the reinforcing material 61 is fixed to the inner peripheral projection surface portion 513 with the inner peripheral projection piece 612 abutting against the screw hole 516. The screws 615 are provided at multiple locations along the longitudinal direction of the reinforcing material 61, and the number of screws 615 is set according to the length dimension of the reinforcing material 61.

[0016] A recessed groove for holding the double-glazed glass 59 is formed by the lower end of the exterior facing surface 511 of the upper frame 51, the inner peripheral facing surface 513, and the lower end of the interior member 519. In this recessed groove, a metallic reinforcing member 71 having a substantially L-shaped cross section is fixed to the inner peripheral side visible surface portion 513 with a screw 615 .

[0017] [Lower stile] As shown in Figures 2 and 4 to 6, the lower frame 52 is constructed by combining an aluminum exterior member 520 and a synthetic resin interior member 529, improving heat insulation. Note that Figure 4 shows the reinforcing member 62 slid laterally relative to the exterior member 520, and the longitudinal positions of the exterior member 520 and the reinforcing member 62 differ from the actual assembled state. Similar to the upper frame 51, the exterior member 520 has a hollow portion 525 defined by an exterior facing surface 521, an interior facing surface 522, an inner peripheral facing surface 523, and an outer peripheral facing surface 524. The inner peripheral side visible surface portion 523 and the outer peripheral side visible surface portion 524 are formed with screw holes 526 and second screw holes 527 that are arranged in the hollow portion 525. Furthermore, as shown in Fig. 4, the inner peripheral side visible surface portion 523 is formed with drainage holes 5231 that are rectangular in plan view at three locations: the center in the longitudinal direction and near both left and right ends.

[0018] A reinforcing member 62 made of a metal such as steel or stainless steel is arranged in the hollow portion 525 over approximately the entire length of the lower frame 52. As shown in Figures 4 and 5, the reinforcing member 62 includes a sight piece 621 arranged along the exterior sight surface portion 521, an inner periphery sight piece 622 arranged opposite the inner periphery sight surface portion 523 with a screw hole 526 in between, and an outer periphery sight piece 623 arranged opposite the outer periphery sight surface portion 524 with a second screw hole 527 in between, and is formed into a substantially U-shaped cross section. At both longitudinal ends of the reinforcing material 62, i.e., the ends on the vertical frame 53, 54 side, no inner peripheral projection piece 622 or outer peripheral projection piece 623 is formed, and instead an extension piece 624 extending upward from the projection piece 621 and a second extension piece 625 extending downward from the projection piece 621 are provided. Drainage holes 626 are formed in the inner peripheral projection piece 622. The drainage holes 626 are formed at three positions corresponding to the drainage holes 5231 of the inner peripheral projection surface portion 523, that is, at positions directly below each drainage hole 5231 when the reinforcing member 62 is placed at a predetermined position within the hollow portion 525. In the longitudinal direction, an extension piece 627 extending upward from the sight piece 621 is provided at the position of each drainage hole 626. In addition, round drainage holes 628 are provided in the outer peripheral sight piece 623. The drainage holes 628 are formed in two locations near both ends, and are formed in positions slightly closer to the center than the two drainage holes 626 near both ends.

[0019] The reinforcing material 62 is fixed with a screw 629 that is screwed from the inner peripheral projection surface portion 523 into a screw hole 6221 of the inner peripheral projection piece 622. Therefore, the reinforcing material 62 is fixed to the inner peripheral projection surface portion 523 with the inner peripheral projection piece 622 abutting against the screw hole 526. Note that, as shown in FIG. 4, the screws 629 are provided at multiple locations along the longitudinal direction of the reinforcing material 62.

[0020] As shown in Figures 2 and 5, a recessed groove that holds the double-glazed glass 59 is formed by the upper end of the exterior-facing surface 521 of the lower frame 52, the inner-side facing surface 523, and the upper end of the interior component 529. A metal reinforcing member 72 having a generally U-shaped cross section is disposed in this recessed groove, and the reinforcing member 72 is fixed to the inner peripheral visible surface portion 523 with a screw 629 .

[0021] [Vertical frame (hanging side)] As shown in Figs. 3 and 6, the vertical frame 53 on the hanging side is made up of an aluminum exterior member 530 and a synthetic resin interior member 539, which improves heat insulation. As shown in FIG. 6, the exterior member 530 has a hollow portion 535 defined by an exterior facing surface portion 531, an interior facing surface portion 532, an inner peripheral facing surface portion 533, and an outer peripheral facing surface portion 534. A reinforcing member 63 made of metal such as steel or stainless steel is arranged in the hollow portion 535 over substantially the entire length of the vertical frame 53. The reinforcing member 63 includes a sight piece 631 arranged along the exterior sight surface portion 531, and an inner sight piece 632 arranged along the inner sight surface portion 533, and is formed with an L-shaped cross section. The reinforcing material 63 is fixed with screws 635 that are screwed in from the inner peripheral side projection surface portion 533. Therefore, the reinforcing material 63 is fixed to the inner peripheral side projection surface portion 533 with the inner peripheral projection piece 632 abutting against the inner peripheral side projection surface portion 533. The screws 635 are provided at multiple locations along the vertical direction, which is the longitudinal direction of the reinforcing material 63.

[0022] The inner peripheral projection surface portion 533 is an abutment surface portion against which the small ends at both the left and right ends of the upper frame 51 and the lower frame 52 abut. As shown in FIG. 5B, the inner peripheral projection surface portion 533 of the vertical frame 53 and the lower end portion of the inner peripheral projection piece 632 of the reinforcing member 63 are formed with an insertion hole 5331 and an insertion hole 6321 through which the assembly screw 91 screwed into the screw hole 526 of the lower frame 52 is inserted, and a second insertion hole 5332 and a second insertion hole 6322 through which the second assembly screw 92 screwed into the second screw hole 527 of the lower frame 52 is inserted. Also, as shown in Figure 6, the outer peripheral visible surface portion 534 has an insertion hole 5341 formed at a position opposite the insertion hole 5331 and the second insertion hole 5332, for inserting the assembly screw 91 and the second assembly screw 92. Assembly screw 91 and second assembly screw 92 are configured so that the height of the threads on the head side is higher than the height of the threads on the tip side. Therefore, because the height of the threads on the tip side is low, assembly screw 91 and second assembly screw 92 can be easily screwed into screw hole 526 and second screw hole 527. Furthermore, because the height of the threads on the head side is high, when assembly screw 91 and second assembly screw 92 are screwed in completely, assembly screw 91 and second assembly screw 92 can be firmly joined to screw hole 526 and second screw hole 527. The joint structure between the upper frame 51 and the vertical frame 53 is the same as the joint structure between the lower frame 52 and the vertical frame 53, so explanation will be omitted.

[0023] [Vertical frame (front door)] As shown in FIG. 3, the vertical frame 54 on the door end side is made up of an aluminum exterior member 540 and a synthetic resin interior member 549, which improves heat insulation. The exterior member 540 has a hollow portion 545 defined by an exterior facing surface portion 541 , an interior facing surface portion 542 , an inner peripheral facing surface portion 543 , and an outer peripheral facing surface portion 544 . A reinforcing member 64 made of metal such as steel or stainless steel is disposed in the hollow portion 545 over substantially the entire length of the vertical frame 54. The reinforcing member 64 has an L-shaped cross section like the reinforcing member 63, and is fixed with screws (not shown) that are screwed in from the inner peripheral side visible surface portion 543.

[0024] The inner peripheral projection surface 543 is a contact surface against which the small ends at both the left and right ends of the upper and lower frames 51, 52 contact, and similar to the vertical frame 53, the vertical frame 54, the upper frame 51, and the lower frame 52 are fixed with assembly screws and second assembly screws (not shown), so explanations will be omitted.

[0025] The exterior facing surfaces 531, 541 of the vertical frames 53, 54, the inner peripheral facing surfaces 533, 543, and the interior components 539, 549 form a recessed groove that holds the double glazing 59. Metallic reinforcing members 73, 74 having a generally U-shaped cross section are arranged in each of these recessed grooves, and the reinforcing members 73, 74 are fixed to the inner peripheral visible surface portions 533, 543 with screws.

[0026] [Heated foam material] Heat-forming foam materials 80 are attached to the upper frame 10, lower frame 20, and vertical frames 30 and 40 of the door frame 2. Specifically, the heat-forming foam materials 80 are attached to the visible surfaces of the upper frame body 11 and vertical frame bodies 31 and 41, and to the visible surface of the lower frame body 21. In the event of a fire, these heat-forming foam materials 80 foam and can seal each of the gaps 101 to 104. Heat-forming foam materials 81 are also placed in the retaining grooves of the airtight materials 39 and 49 of the cover materials 35 and 45.

[0027] Heat-forming foam materials 82 that seal the gap between the frame 5A and the door frame 2 in the event of a fire are attached to the outer peripheral surfaces of the upper frame 51, lower frame 52, and vertical frame 53, 54 of the door body 5. Heat-forming foam materials 83 that seal the gap between the frame 5A and the double-glazed glass 59 are also appropriately arranged in the recessed groove that holds the double-glazed glass 59. Furthermore, the reinforcing members 63 and 64 have heat-foaming materials 84 attached at appropriate positions in the vertical direction to close the hollow portions 535 and 545 of the vertical frames 53 and 54.

[0028] Next, the heat-foaming materials 85 and 86 that are attached to the reinforcing material 62 arranged inside the lower frame 52 will be described with reference to FIGS. The heat-foaming material 85 is attached to both the left and right ends of the reinforcing material 62, from the upper end of the extension piece 624 to the lower end of the sight piece 621. Because this heat-foaming material 85 is attached from the upper end to the vicinity of the lower end of the reinforcing material 62, it can foam in the event of a fire, thereby sealing both the left and right ends of the hollow portion 525. The heat-foaming material 86 is attached to the upper surface of the inner peripheral projection piece 622 provided between the extension piece 624 and the extension piece 627 .

[0029] Here, the area at both left and right ends of the screw hole 526 of the lower frame 52 where the assembly screw 91 is screwed is defined as the threaded area, and the area at both left and right ends of the second screw hole 527 of the lower frame 52 where the second assembly screw 92 is screwed is defined as the second threaded area. 5 and 6, the heat-foaming material 85 attached to the extension piece 624 is arranged so as to face the portion of the screw hole 526 where the threads on the head side of the assembly screw 91 are threaded in. Therefore, when the heat-foaming material 85 foams in the event of a fire, it can cover and protect the region of the screw hole 526 where the threads on the head side of the assembly screw 91 are threaded in. Furthermore, the heat-foaming material 86 affixed to the upper surface of the inner peripheral projection piece 622 is positioned so as to face the portion of the screw hole 526 where the threads on the tip side of the assembly screw 91 are threaded. Therefore, when the heat-foaming material 86 foams in the event of a fire, it can cover and protect the area of ​​the screw hole 526 where the threads on the tip side of the assembly screw 91 are threaded. Note that the heat-foaming material 86 is affixed to the upper surface of the inner peripheral projection piece 622, and in the event of a fire, it foams upward, that is, toward the inner peripheral projection surface portion 523. However, since the height between the inner peripheral projection piece 622 and the inner peripheral projection surface portion 523 is the height of the screw hole 526 and is relatively small, the foamed heat-foaming material 86 fills the space partitioned by the exterior-facing surface portion 521, the inner peripheral projection surface portion 523, the inner peripheral projection piece 622, and the screw hole 526, and can instantly cover the exterior surface of the screw hole 526. In addition, there are some areas between the heated foaming materials 85 and 86 where no heated foaming material is attached, but these areas are also filled with the expanded heated foaming materials 85, 86, so that the exterior surface of the screw-engagement area of ​​the screw hole 526 can be covered with the heated foaming materials 85, 86.

[0030] [Effects of the embodiment] In the frame body 5A of this embodiment, a metal reinforcing material 62 is placed in the hollow portion 525 of the lower frame 52, which is the first frame material, and an inner peripheral projection piece 622 of this reinforcing material 62 is placed opposite the inner peripheral projection surface portion 523 across a screw hole 526, and a heated foam material 86 is provided on the indoor side of the screw hole 526 in the inner peripheral projection piece 622. Therefore, in the event of a fire outside the frame 5A, the heated foaming material 86 will foam, covering the outside of the screw holes 526 and protecting the screw holes 526. Furthermore, the opening grooves of the screw holes 526 can be blocked by the metal inner peripheral recessed pieces 622 in at least a portion of the threaded areas of the screw holes 526. Therefore, even if the screw holes 526 are softened by heating, the assembly screws 91 are held by the inner peripheral recessed pieces 622 of the reinforcing material 62, preventing the assembly screws 91 from coming out of the opening grooves of the screw holes 526. As a result, the assembly screws 91 can be prevented from coming out of the screw holes 526 in the event of a fire, and the structure of the frame 5A, which is composed of the first frame members (upper frame 51 and lower frame 52) and the second frame members (vertical frame 53 and 54), can be maintained for a long time. This also prevents the double-glazed glass 59 held within the frame 5A from falling out, improving the fire resistance of the door 1, which is a fixture.

[0031] Since reinforcing material 62 is provided with peripheral recessed piece 623, the open groove of second screw hole 527, into which second assembly screw 92 is threaded, can be blocked by metal peripheral recessed piece 623 in at least a part of the second threaded region of second screw hole 527, whereby second assembly screw 92 is threaded. Therefore, even if second screw hole 527 is softened by heating, second assembly screw 92 is held in place by peripheral recessed piece 623 of reinforcing material 62, preventing second assembly screw 92 from coming off second screw hole 527. As a result, in the event of a fire, both assembly screw 91 and second assembly screw 92 can be prevented from coming off screw hole 516 and second screw hole 527, allowing the structure of frame 5A to be maintained for a longer period of time and further improving the fire resistance of door 1. Furthermore, since the reinforcing member 62 is formed with a U-shaped cross section, it is possible to improve the strength and also to improve the workability since it is stable when inserted into the hollow portion 525.

[0032] Because extension piece 624 is provided on sight piece 621 of reinforcing material 62 and heat-foamable material 85 is provided on extension piece 624, metal extension piece 624 and heat-foamable material 85 can be placed on the outdoor side of at least a portion of the threaded area of ​​screw hole 526. As a result, even if frame body 5A is heated by a fire or the like, heat-foamable material 85 can foam and cover the threaded area of ​​screw hole 526, which extends the time until screw hole 526 is deformed by heating, allowing the structure of frame body 5A to be maintained for an even longer period of time and further improving fire resistance.

[0033] Heat-foaming material 85 is provided on the spot pieces 621 at both longitudinal ends of the reinforcing material 62, so that by foaming the heat-foaming material 85 in the event of a fire, both ends of the hollow portion 525 of the lower frame 52 can be blocked with the heat-foaming material 85, thereby improving fire prevention performance. When the heat-foaming material 85 foams, it can cover the outdoor side of the second screw hole 527, so that even if the second extending piece 625 is not provided with a heat-foaming material, the second screw hole 527 can be protected. Furthermore, because the upper end side of sight piece 621 extends upward to form extension piece 624, heat-foaming material 85 can be provided in the range from the upper end of extension piece 624 to the lower end of sight piece 621. Therefore, the heat-foaming material that protects screw holes 526 and the heat-foaming material that seals hollow portion 525 can be integrated, and the work of attaching heat-foaming material 85 to reinforcing material 62 can be easily performed.

[0034] The joint between the lower frame 52 and the vertical frames 53, 54 is subjected to the load of the double-glazed glass 59 held by the frame body 5A, as well as the load of the upper frame 51 and the vertical frames 53, 54, so if the screw hole 526 softens, the assembly screw 91 is likely to come out of the screw hole 526. However, in this embodiment, the aforementioned reinforcing material 62 is placed on the first frame material, particularly the lower frame 52, so that the assembly screw 91 can be reliably prevented from falling out.

[0035] Drainage hole 5231 is formed in bottom frame 52, and drainage holes 626 and 628 are formed in reinforcing member 62, so that even if rainwater or the like seeps into the glass-retaining groove of bottom frame 52, it can be drained into hollow portion 525 via drainage hole 5231, and further, it can be drained to the outside of the room via drainage holes 626, 628 in reinforcing member 62 and the portions at both ends of reinforcing member 62 where inner peripheral projection piece 622 and outer peripheral projection piece 623 are not provided, and through drainage holes (not shown) formed in outer peripheral projection surface portion 524 of bottom frame 52. Therefore, rainwater or the like does not accumulate in hollow portion 525, and drainage is also ensured.

[0036] [Variations] The fixture of the present invention is not limited to a terrace door as in the above embodiment, but may also be a back door or a ventilation door with an openable window unit such as a sash window built into the door body. Furthermore, the fixture is not limited to a door, but may also be various fixtures such as sliding windows and casement windows that have a shoji screen that can be opened and closed freely in a window frame. In the above embodiment, the first frame is the upper frame 51 and the lower frame 52, and the second frame is the vertical frame 53 and 54, but the first frame may be the vertical frame and the second frame may be the upper frame and the lower frame, resulting in a horizontal fitting.

[0037] In the above embodiment, only the lower frame 52 is provided with a reinforcing material 62 having an inner peripheral projection piece 622 with a heat-foamed material 86, but a similar reinforcing material may also be provided on the upper frame 51. Furthermore, in the reinforcing material 62 of the above embodiment, the outer peripheral projection piece 623 does not have a heat-foaming material provided therein, but the outer peripheral projection piece 623 may have a heat-foaming material provided on the outdoor side of the second screw-in region. Furthermore, although the reinforcing material 62 in the above embodiment does not have a heat-foaming material provided on the second extending piece 625, the heat-foaming material 85 may be provided up to the lower end of the second extending piece 625, and the heat-foaming material 85 may also be provided on the outdoor side of the second screw hole 527. Also, separate heat-foaming materials 85 may be provided on the extending piece 624 and the second extending piece 625 of the reinforcing material 62.

[0038] The reinforcing material 62 in the above embodiment has the outer peripheral visible piece 623, but the reinforcing material may also have a substantially L-shaped cross section that has only the visible piece 621 and the inner peripheral visible piece 622. The reinforcing material may also be a reinforcing material with a U-shaped cross section without including extension piece 624, second extension piece 625, and extension piece 627. In addition, if a drainage path can be provided separately and there is no need to form drainage holes 626 or the like in the reinforcing material, inner peripheral projection piece 622 and outer peripheral projection piece 623 may be formed over the entire length of the reinforcing material. The inner peripheral projection piece 622 of the reinforcing material 62 is not limited to being in contact with the screw hole 526, but may be positioned slightly away from the screw hole 526, as long as the inner peripheral projection piece 622 is positioned in a position that prevents the assembly screw 91 from being completely removed from the screw hole 526. In this case, the heat-foaming material 86 provided on the inner peripheral projection piece 622 may be provided below the screw hole 526. In other words, the position of the heat-foaming material 86 provided on the inner peripheral projection piece 622 is not limited to being on the outdoor side of the screw hole 526, but may be positioned in a position that can protect the screwed area in the screw hole 526 where the assembly screw 91 is screwed in during a fire.

[0039] [Summary of the invention] The frame of the present invention is a frame formed by framing a pair of first frame members and a pair of second frame members, wherein the first frame members have a hollow portion defined by an exterior facing surface portion, an interior facing surface portion, an inner peripheral facing surface portion, and an outer peripheral facing surface portion, and at least the inner peripheral facing surface portion has screw holes formed therein for placement in the hollow portion, and the second frame members have a contact surface portion against which the end of the first frame member contacts, and assembly screws that are threaded into the screw holes are inserted into the contact surface portion. a through hole formed in the first frame member of the pair of first frames, a metal reinforcing material disposed in the hollow portion of at least one of the first frame members, the reinforcing material having an inner peripheral visible piece disposed opposite the inner peripheral visible surface portion across the screw hole in at least a part of the threaded region that threads with the assembly screw of the screw hole, and a visible piece provided along the exterior visible surface portion, and the inner peripheral visible piece is provided with a heat-foamed material. According to the frame of the present invention, the first and second stiles can be connected by abutting the end of the first stile against the abutment surface of the second stile and threading an assembly screw inserted from the abutment surface into a screw hole formed in the inner peripheral projection surface of the first stile and positioned in the hollow portion. Then, a metal reinforcing material is placed in the hollow portion of at least one of the first stiles, and an inner peripheral projection piece of this reinforcing material is positioned opposite the inner peripheral projection surface across the screw hole, and a heat-foaming material is provided in the inner peripheral projection piece. Therefore, in the event of a fire outside the frame, the heated foaming material will foam and cover the screw holes, protecting them. Furthermore, since the opening grooves of the screw holes can be blocked with metal inner peripheral recessed pieces in at least a portion of the threaded area, even if the screw holes soften due to heating, the assembly screws are held in place by the inner peripheral recessed pieces of the reinforcing material, preventing the assembly screws from coming out of the screw hole opening grooves. As a result, assembly screws can be prevented from coming out of the screw holes in the event of a fire, the structure of the frame made up of the first and second frame members can be maintained for a long time, and surface materials such as glass held within the frame can be prevented from falling out, improving fire resistance.

[0040] In the frame body of the present invention, the visible piece of the reinforcing material has an extension piece that extends toward the inner peripheral visible surface portion more than the inner peripheral visible piece and is positioned on the outdoor side relative to at least a portion of the screwed area, and it is preferable that the extension piece is provided with a heated foam material that faces the screwed area. According to the frame body of the present invention, by providing an extension piece on the visible piece of the reinforcing material, a metal extension piece is placed on the outdoor side of at least a portion of the screw hole threading area, and a heat-foaming material is provided on this extension piece.Therefore, even if the frame body is heated by a fire or the like, the heat-foaming material will foam and cover the screw hole threading area, thereby extending the time until the screw hole is deformed by heating, allowing the structure of the frame body to be maintained for an even longer period of time, and preventing the falling off of surface materials such as glass held within the frame body, further improving fire resistance performance.

[0041] In the frame body of the present invention, the extension pieces are formed at both longitudinal ends of the reinforcing material, the inner peripheral visible piece is formed closer to the longitudinal center of the reinforcing material than the extension pieces, and it is preferable that a heated foam material is provided on the visible pieces at both longitudinal ends of the reinforcing material. According to the frame body of the present invention, a heat-foaming material is provided on the visible pieces at both longitudinal ends of the reinforcing material, so that by foaming the heat-foaming material in the event of a fire, both ends of the hollow portion of the first frame material can be sealed with the heat-foaming material, thereby improving fire resistance.

[0042] In the frame body of the present invention, a second screw hole is formed in the outer peripheral visible surface portion of the first frame material and is arranged in the hollow portion, and a second insertion hole is formed in the abutment surface portion of the second frame material and through which a second assembly screw that is screwed into the second screw hole is inserted, and it is preferable that the reinforcing material has an outer peripheral visible piece that is arranged opposite the outer peripheral visible surface portion across the second screw hole in at least a part of a second screwing area that screws into the second assembly screw of the second screw hole. According to the frame of the present invention, the open groove of the second screw hole can be blocked with a metal peripheral recessed piece in at least a portion of the second threaded region, so that even if the second screw hole is softened by heating, the second assembly screw is held in place by the peripheral recessed piece of the reinforcing material, preventing the second assembly screw from coming out of the second screw hole. This prevents both the assembly screw and the second assembly screw from coming out of the first screw hole and the second screw hole in the event of a fire, allowing the structure of the frame made up of the first and second frame members to be maintained for an even longer period of time, and preventing the falling out of face materials such as glass held within the frame, further improving fire resistance.

[0043] The building fixture of the present invention is a building fixture comprising an opening frame formed in a square shape with a framework on all four sides, and an opening / closing body that is arranged on the opening frame so that it can be opened and closed freely, and is characterized in that the opening / closing body is formed with the frame body. According to the fittings of the present invention, the same effects as those of the above-mentioned frame bodies can be achieved. [Explanation of symbols]

[0044] 1...door, 2...door frame, 5...door body, 5A...frame body, 51...upper stile, 52...lower stile, 53...vertical stile, 54...vertical stile, 59...double glazing, 62...reinforcing material, 85...heated foaming material, 86...heated foaming material, 91...assembly screw, 92...second assembly screw, 520...exterior component, 521...exterior visible surface portion, 522...interior visible surface portion, 523...inner peripheral visible surface portion, 524...outer peripheral visible surface portion, 525... Hollow portion, 526...screw hole, 527...second screw hole, 529...interior component, 621...sight piece, 622...inner peripheral sight piece, 623...outer peripheral sight piece, 624...extension piece, 625...second extension piece, 626...drainage hole, 627...extension piece, 628...drainage hole, 629...screw, 5231...drainage hole, 5331...insertion hole, 5332...second insertion hole, 6321...insertion hole, 6322...second insertion hole.

Claims

1. A frame body formed by framing a pair of first frame members and a pair of second frame members, The first frame member has a hollow portion defined by an exterior facing surface portion, an interior facing surface portion, an inner peripheral facing surface portion, and an outer peripheral facing surface portion, At least the inner peripheral side visible surface portion has a screw hole formed therein to be disposed in the hollow portion, The second frame has an abutment surface portion against which the end of the first frame abuts, and this abutment surface portion has an insertion hole through which an assembly screw threaded into the screw hole is inserted, a metal reinforcing member is disposed in the hollow portion of at least one of the pair of first frame members; The reinforcing material has an inner peripheral visible piece arranged opposite the inner peripheral side visible surface portion across the screw hole in at least a part of a threaded region that threads with the assembly screw of the screw hole, and a visible piece provided along the exterior visible surface portion, The inner peripheral piece is provided with a heat-foaming material, The sight piece of the reinforcing material has an extension piece that extends toward the inner periphery side sight surface portion more than the inner periphery sight piece and is arranged on the outdoor side with respect to at least a part of the screwed region, The extension piece is provided with a heat-foaming material facing the screw-engagement area. A frame body characterized by:

2. The frame according to claim 1 , The extension pieces are formed at both longitudinal ends of the reinforcing material, The inner peripheral projection piece is formed closer to the longitudinal center of the reinforcing material than the extension piece, The reinforcement member has a heat-foamed material provided on the end pieces at both ends in the longitudinal direction. A frame body characterized by:

3. The frame according to claim 1 or 2, A second screw hole is formed in the outer peripheral side visible surface portion of the first frame member and is arranged in the hollow portion, A second insertion hole through which a second assembly screw threaded into the second screw hole is inserted is formed in the abutment surface portion of the second frame member, The reinforcing member has an outer peripheral projection piece that is disposed opposite the outer peripheral projection surface portion across the second screw hole in at least a part of a second screwing region that is screwed with the second assembly screw of the second screw hole. A frame body characterized by:

4. An opening frame formed in a square shape with a framework around it, An opening / closing body that is arranged in the opening frame and can be opened and closed freely, The opening and closing body is a fitting comprising a frame body according to any one of claims 1 to 3.

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