Fitting

Abstract

To provide a fitting capable of improving fire prevention while maintaining heat insulation properties.SOLUTION: A window unit 1 includes a window frame 2, and a sash 7 and a panel 8 which serve as a panel body arranged within the window frame 2. The window frame 2 is constructed by combining metal frame materials 42, 52, 62 on an exterior side and resin frame materials 46, 56, 66 on an interior side. The resin frame materials 46, 56, 66 have receiving portions 48, 58, 68A to which airtight materials 10 are attached that abut against the sash 7 and the panel 8. The metal frame materials 42, 52, 62 have restricting portions 49, 59, 65A which engage with the receiving portions 48, 58, 68A. The restricting portions 49, 59, 65A restrict movement of the receiving portions 48, 58, 68A toward an inner periphery of the window frame 2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a fitting configured by combining a metal outdoor profile and a resin indoor profile.

Background Art

[0002] Conventionally, as a composite fitting, a continuous window in which a fixed window and a vertically sliding window are arranged in the left - right direction with a mullion in between is known within a rectangular frame (see Patent Document 1). The frame is composed of a metal frame such as an aluminum alloy provided on the outdoor side and a resin frame made of synthetic resin provided on the indoor side. The mullion is composed of a metal mullion part on the outdoor side and a resin mullion part on the indoor side. In this continuous window, receiving parts for receiving panel bodies such as shoji screens and double - layer glass, such as packings and bead materials, are formed in the resin parts of the frame and the mullion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] By the way, in the continuous window described in Patent Document 1, the heat insulation property is improved by configuring the indoor side with resin parts such as the resin frame of the frame and the resin mullion part of the mullion. However, if the resin part softens during a fire and the receiving part for receiving the panel body moves, there is a risk of leading to the intrusion of flames.

[0005] An object of the present invention is to provide a fitting capable of improving fire resistance while maintaining heat insulation.

Means for Solving the Problems

[0006] The fitting of the present invention is a fitting including a frame body and a panel body disposed within the frame body. The frame body is configured by combining a metal frame member on the outdoor side and a resin frame member on the indoor side. The resin frame member has a receiving portion to which an airtight material that abuts against the panel body is attached. The metal frame member has a restricting portion that engages with the receiving portion, and the restricting portion restricts movement of the receiving portion toward the inner peripheral side of the frame body.

Effect of the Invention

[0007] According to the present invention, it is possible to provide a fitting capable of improving fire resistance while maintaining heat insulation properties.

Brief Description of the Drawings

[0008]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Mode for Carrying Out the Invention

[0009] [Configuration of the Present Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 to 3, the window unit 1 as a fitting according to the present embodiment is a single-sleeve opening window installed in an opening of a building body, and includes a window frame 2 (frame body), a shoji 7 and a panel 8 as panel bodies arranged in the window frame 2. The window frame 2 includes an upper frame 21, a lower frame 31, left and right vertical frames 41 and 51 that are framed on all four sides, and an intermediate vertical frame 61 disposed between the left and right vertical frames 41 and 51. The shoji 7 includes a frame body 75 in which an upper frame 71, a lower frame 72, and left and right vertical frames 73 and 74 are framed on all four sides, and a face material 76 such as a glass panel disposed in the frame body 75. The panel 8 has a face material 81 such as a glass panel, and a sleeve upper frame 82 and a sleeve lower frame 83 are provided at the upper and lower portions of the face material 81. The window unit 1 is configured with an opening window portion 1A arranged side by side left and right and a fixed window portion 1B (FIX window portion). The opening window portion 1A is configured such that the shoji 7 is rotatably arranged in the Z-axis direction within a frame formed by the upper frame 21, the lower frame 31, the vertical frame 41, and the intermediate vertical frame 61. The fixed window portion 1B is configured such that the panel 8 is arranged within a frame formed by the upper frame 21, the lower frame 31, the vertical frame 51, and the intermediate vertical frame 61. In the following description, the left-right direction of the window unit 1 is defined as the X-axis direction, the up-down direction of the window unit 1 is defined as the Y-axis direction, and the prospective direction (indoors-outdoors direction) of the window unit 1 is defined as the Z-axis direction. The X, Y, and Z-axis directions are orthogonal to each other.

[0010] [Window Frame] The upper frame 21 extends along the X-axis direction and is a composite frame material formed by combining a metal upper frame material 22 (metal frame material) on the outdoor side and a resin upper frame material 26 (resin frame material) on the indoor side, as shown in FIGS. 2 to 4. The metal upper frame member 22 is made of metal and is formed by an extruded aluminum member extruded in this embodiment. The metal upper frame member 22 has a substantially rectangular metal frame main body 23 having a hollow portion along the X-axis direction, and an indoor projected surface portion 24 (projected surface portion) extending from the metal frame main body 23 toward the indoor side in the Z-axis direction. On the indoor projected surface portion 24, a substantially L-shaped extension piece 241 extending downward (inner peripheral side) in the Y-axis direction, and engaging pieces 242 and 243 with which the resin upper frame member 26 is engaged are formed. The tip of the extension piece 241 faces the indoor side, and a protruding piece 25 protruding downward (inner peripheral side) in the Y-axis direction is formed on the inner peripheral surface thereof. The engaging piece 242 extends from the base end portion 241A of the extension piece 241 toward the outdoor side in the Z-axis direction, and the engaging piece 243 extends downward in the Y-axis direction from the indoor projected surface portion 24 at a position closer to the indoor side than the position of the extension piece 241. An engaging claw portion 243A protruding toward the indoor side is formed at the tip of the engaging piece 243. An engaging claw portion 251 protruding toward the outdoor side is formed on the protruding piece 25. The above-described protruding piece 25 constitutes a restricting portion 28 that restricts the movement of a receiving portion 29, which will be described later, toward the inner peripheral side of the window frame 2. The resin upper frame member 26 is made of synthetic resin and is formed by an extruded resin member formed by extrusion molding in the present embodiment. The resin upper frame member 26 has an outdoor finding surface portion 261 formed at the upper end with an engaging claw portion 261A protruding inwardly of the room in a snap fit form that engages with the engaging piece 242, an indoor finding surface portion 262 formed at the upper end with a crank-shaped engaging step portion 262A that engages with the engaging claw portion 243A, and a prospective surface portion 263 continuous with the outdoor finding surface portion 261 and the indoor finding surface portion 262. At a position above the position of the prospective surface portion 263, a continuous surface portion 264 continuous with the bottom portion 271 and the indoor finding surface portion 262 described later is formed. A concave portion 27 is formed in the continuous portion of the outdoor finding surface portion 261 and the prospective surface portion 263. The concave portion 27 has a bottom portion 271 extending upward in the Y-axis direction from the prospective surface portion 263 and a piece 273A extending in the Z-axis direction from the bottom portion 271 toward the outdoor finding surface portion 261. The portion of the prospective surface portion 263 outside the bottom portion 271 and the portion of the outdoor finding surface portion 261 continuous with and extending upward from this portion constitute the inner peripheral side portion 272 of the concave portion 27, and the piece 273A and the portion of the outdoor finding surface portion 261 continuous with and extending downward from the piece 273A constitute the outer peripheral side portion 273 of the concave portion 27. An opening 275 in which the tight material 11 can be arranged is formed between the pair of side portions 272 and 273. The opening 275 is arranged at a position closer to the side portion 273 in the Y-axis direction. For this reason, the side portion 272 constitutes a shoulder portion 272A larger than the side portion 273, and the bead material 12 described later can be easily applied to the shoulder portion 272A. A protruding piece 25 is arranged at a position where it overlaps in the Z-axis direction on the indoor side of the bottom portion 271 and is received in the Z-axis direction by the protruding piece 25. An engaged protrusion 271A is formed protruding inwardly of the room on the bottom portion 271, and the engaging claw portion 251 of the protruding piece 25 is engaged with the engaged protrusion 271A. Further, the indoor finding surface portion 262 and the prospective surface portion 263 constitute a covering portion 265 that covers the extending piece 241, the engaging pieces 242 and 243, and the protruding piece 25 from the indoor side. Note that the extending piece 241 constitutes the indoor finding surface portion of the metal upper frame member 22. The above-described concave portion 27 constitutes a receiving portion 29 to which an airtight material 10 such as a tight material 11 that abuts against the shoji 7 or a bead material 12 that abuts against the panel 8 (see FIGS. 1 and 4) can be attached. The receiving portion 29 is disposed at a position on the inner peripheral side with respect to the position of the indoor prospective surface portion 24 of the metal upper frame member 22. In the present embodiment, a tight material 11 is attached to the portion of the receiving portion 29 that constitutes the opening window portion 1A, and a sleeve upper frame 82 is fitted to the portion that constitutes the fixed window portion 1B. The bottom portion 271 and the side portions 272, 273 constitute a groove portion 276 into which the base portion 11A of the tight material 11 is fitted, and the side portion 272 constitutes the above-described shoulder portion 272A to which the bead material 12 is applied.

[0011] As shown in FIGS. 2 and 3, the lower frame 31 is made of metal and is formed of an aluminum extrusion molded product in the present embodiment. The lower frame 31 has a lower frame main body 32 having a hollow portion along the X-axis direction, an indoor frame portion 33 having a hollow portion located on the indoor side with respect to the lower frame main body 32, and a continuous finding surface portion 34 along the Z-axis direction that connects the lower frame main body 32 and the indoor frame portion 33. A receiving portion 39 formed of a concave portion to which the airtight material 10 can be attached is formed in the indoor frame portion 33, and a resin cover 35 is engaged and attached to the inner peripheral side of the indoor frame portion 33. A tight material 11 is fitted and attached to the portion of the receiving portion 39 that constitutes the opening window portion 1A, and a sleeve lower frame 83 is fitted to the portion that constitutes the fixed window portion 1B.

[0012] The intermediate vertical frame 61 constitutes a vertical frame on the door tip side on the opening window portion 1A side and a vertical frame that holds one vertical edge portion of the panel 8 on the fixed window portion 1B side, and extends along the Y-axis direction. As shown in FIGS. 1 and 5, the intermediate vertical frame 61 is a composite frame material formed by combining an outdoor metal intermediate frame member 62 (metal frame member) and an indoor resin intermediate frame member 66 (resin frame member). The metal intermediate frame member 62 is made of metal and is formed by an extruded aluminum member that is extruded in this embodiment. The metal intermediate frame member 62 has an outdoor finding surface portion 621 and an indoor finding surface portion 622, and prospective surface portions 623 and 624 that are continuous with the outdoor finding surface portion 621 and the indoor finding surface portion 622, and is formed in a substantially rectangular shape, forming a hollow portion along the X-axis direction. At the indoor end of the prospective surface portion 623 located on the vertical frame 41 side, a protruding piece 65 that protrudes toward the vertical frame 41 side (the inner peripheral side in the opening window portion 1A) in the X-axis direction is formed, and an engaging claw portion 651 that protrudes to the outdoor side is formed on the protruding piece 65. The protruding piece 65 is configured as a restricting portion 65A that supports the concave portion 68 described later from the indoor side and restricts the movement of the concave portion 68. On the prospective surface portion 624 located on the vertical frame 51 side, a panel pressing portion 625 that protrudes toward the vertical frame 51 side in the X-axis direction is formed. A bead material 13 is fitted and attached to the panel pressing portion 625, and the panel 8 is held from the outdoor side by bringing the bead material 13 into contact with the outdoor surface of the panel 8. Further, a stepped portion 626 that is recessed in a stepped shape is formed in the indoor portion of the prospective surface portion 624. The stepped portion 626 is composed of a bottom wall 627 along the X-axis direction and a side wall 628 along the Z-axis direction that is continuous with the bottom wall 627, and an engaging piece portion 629 that protrudes toward the indoor side in the Z-axis direction is formed at the continuous portion of the bottom wall 627 and the prospective surface portion 624. The resin intermediate frame member 66 has a finding surface portion 671 along the X-axis direction, a prospective surface portion 672 along the Z-axis direction that is continuous with the end of the finding surface portion 671 on the vertical frame 41 side and extends toward the outdoor side, and a prospective surface portion 673 along the Z-axis direction that is continuous with the end of the finding surface portion 671 on the vertical frame 51 side and extends toward the outdoor side, which constitute a resin intermediate frame body 67, a concave portion 68 formed continuously with the prospective surface portion 672, and a concave portion 69 formed continuously with the prospective surface portion 673. The resin intermediate frame body 67 is disposed so as to cover the metal intermediate frame member 62 from the indoor side. On the finding surface portion 671, two convex portions 674 that protrude toward the outdoor side and contact the indoor finding surface portion 622 of the metal intermediate frame member 62 are formed. The concave portion 68 constitutes a receiving portion 68A on which the airtight material 10 is mounted to receive the panel body, and includes a bottom portion 681 extending in the X-axis direction from the prospective surface portion 672 toward the metal intermediate frame member 62, a side portion 682 formed by a portion of the prospective surface portion 672 located outside the room with respect to the bottom portion 681, and a side portion 683 continuous with the bottom portion 681 and extending outside the room in the Z-axis direction from the tip of the bottom portion 681. The bottom portion 681 is arranged such that the protruding piece 65 of the metal intermediate frame member 62 overlaps the indoor side in the Z-axis direction, and is received in the Z-axis direction by this protruding piece 65. A engaged protrusion 681A with which the engaging claw portion 651 of the protruding piece 65 is engaged protrudes from the bottom portion 681 toward the indoor side. The tip portions of the side portions 682 and 683 extend in a direction approaching each other in the X-axis direction, and an opening 684 in which the tight material 11 can be arranged is formed between the tip portions of the side portions 682 and 683. The dimensions of the tip portions of the side portions 682 and 683 in the X-axis direction are equal. The bottom portion 681 and the pair of side portions 682 and 683 constitute a groove portion 685 into which the base portion 11A of the tight material 11 is fitted, and the base portion 11A of the tight material 11 fitted into the groove portion 685 hangs on the tip portions of the pair of side portions 682 and 683. This concave portion 68 is arranged on the vertical frame 41 side with respect to the prospective surface portion 623 of the metal intermediate frame member 62, and the side portion 683 is in contact with the prospective surface portion 623. Note that the side portion 682 constitutes a shoulder portion on which the bead material 12 can be applied. The concave portion 69 constitutes a receiving portion 69A on which the airtight material 10 is mounted to receive the panel body, and includes a bottom portion 691 extending in the X-axis direction from the prospective surface portion 673 toward the metal intermediate frame member 62, a side portion 692 formed by a portion of the prospective surface portion 673 located on the outdoor side of the bottom portion 691, and a side portion 693 extending in the outdoor side in the Z-axis direction from the tip of the bottom portion 691. The tip portions of the side portions 692 and 693 extend in a direction approaching each other in the X-axis direction, and an opening 694 in which the tight material 11 can be disposed is formed between the tip portions of the side portions 692 and 693. An engaging piece portion 696 is formed on the side portion 693, which extends in the X-axis direction toward the metal intermediate frame member 62 and has a claw portion 696A at its tip. A reinforcing piece portion 697 continuous with the prospective surface portion 673 is formed at the continuous portion of the bottom portion 691 and the side portion 693. The reinforcing piece portion 697 is inclined with respect to the Z-axis direction such that the position of its indoor end portion is disposed closer to the vertical frame 51 side than the position of its outdoor end portion. The dimensions of the tip portions of the side portions 692 and 693 in the X-axis direction are equal. The bottom portion 691 and the pair of side portions 692 and 693 constitute a groove portion 695 into which the base portion 11A of the tight material 11 can be fitted, and a shoulder portion on which the bead material 12 can be mounted is formed on the side portion 692, and the bead material 12 is mounted on the shoulder portion. This concave portion 69 is disposed on the vertical frame 51 side (inner peripheral side in the fixed window portion 1B) with respect to the prospective surface portion 624 of the metal intermediate frame member 62, and the claw portion 696A of the engaging piece portion 696 is engaged with the engaging piece portion 629. In the above-described intermediate vertical frame 61, the resin intermediate frame member 66 continuously covers the indoor side of the metal intermediate frame member 62, and the tight material 11 and the bead materials 12 and 13 are disposed on both the left and right sides of the resin intermediate frame member 66. Therefore, for example, even if gas enters from the outdoor side space between the metal intermediate frame member 62 and the resin intermediate frame member 66, it is possible to prevent this gas from entering the indoor side space.

[0013] The vertical frame 41 is along the Y-axis direction and constitutes the vertical frame on the suspension side of the opening window portion 1A. As shown in FIGS. 1 and 6, the vertical frame 41 is a composite frame member formed by combining an outdoor metal vertical frame member 42 (metal frame member) and an indoor resin vertical frame member 46 (resin frame member). The metal vertical frame member 42 is made of metal and is formed by an extruded aluminum profile extruded in this embodiment. The metal vertical frame member 42 has an outdoor finding surface portion 421 and an indoor finding surface portion 422 along the X-axis direction, and prospective surface portions 423 and 424 along the Z-axis direction continuous with the outdoor finding surface portion 421 and the indoor finding surface portion 422. The outdoor finding surface portion 421, the indoor finding surface portion 422, and the prospective surface portions 423 and 424 form a substantially rectangular metal frame body 43 having a hollow portion along the X-axis direction. The prospective surface portion 423 located on the outer peripheral side extends outside the outdoor finding surface portion 421 and also extends inside the indoor finding surface portion 422. The prospective surface portion 424 located on the inner peripheral side with respect to the prospective surface portion 423 extends inside the indoor finding surface portion 422, and a protruding piece 45 protruding toward the vertical frame 51 side (inner peripheral side) in the X-axis direction is formed at the indoor end of the prospective surface portion 424. An engaging claw portion 451 protruding outside is formed on the protruding piece 45. A fitting recess 422A into which a fitting piece 462A (to be described later) of the resin vertical frame member 46 fits is formed at the outer peripheral end of the indoor finding surface portion 422. The above-described protruding piece 45 constitutes a restricting portion 49 that restricts the movement of a receiving portion 48 (to be described later) toward the inner peripheral side of the window frame 2. The resin vertical frame member 46 is made of synthetic resin and is formed by an extruded resin profile extruded in this embodiment. The resin vertical frame member 46 has a hollow frame portion 461 that forms a hollow portion along the X-axis direction, a finding surface portion 466 that extends from the hollow frame portion 461 toward the vertical frame 51 side in the X-axis direction, a prospective surface portion 467 that extends outside in the Z-axis direction from the indoor end of the finding surface portion 466, and a concave portion 47 continuous with the prospective surface portion 467. The hollow frame portion 461 has an outdoor surface portion 462 and an indoor surface portion 463 along the X-axis direction, and a pair of side surface portions 464, 465 along the Z-axis direction continuous with the outdoor surface portion 462 and the indoor surface portion 463. The outdoor surface portion 462, the indoor surface portion 463, and the pair of side surface portions 464, 465 form a hollow portion along the X-axis direction. The side surface portion 464 is arranged along the indoor side portion of the prospective surface portion 423 of the metal vertical frame member 42. At the continuous portion of the outdoor surface portion 462 and the side surface portion 464, a fitting piece 462A protruding in the Z-axis direction toward the outdoor side is formed. At the continuous portion of the indoor surface portion 463 and the side surface portion 465, an extension piece 469 extending in the Z-axis direction toward the indoor side is formed. The side surface portion 465 has a substantially L-shaped step portion 465A in plan view. The hollow frame portion 461, the finding surface portion 466, and the prospective surface portion 467 constitute a covering portion 468 that covers the metal vertical frame member 42 from the indoor side, and the covering portion 468 covers the indoor finding surface portion 422 of the metal vertical frame member 42, the indoor side portion of the prospective surface portion 424, and the protruding piece 45. The concave portion 47 has a bottom portion 471 extending from the prospective surface portion 467 of the resin vertical frame member 46 toward the prospective surface portion 424 side of the metal vertical frame member 42 in the X-axis direction, a side portion 472 along the Z-axis direction formed in a portion of the prospective surface portion 467 located on the outdoor side of the bottom portion 471, and a side portion 473 continuous with the bottom portion 471 and extending from the bottom portion 471 to the outdoor side along the Z-axis direction. The tip portions of the pair of side portions 472, 473 extend in a direction approaching each other in the X-axis direction, and an opening 474 in which the tight material 11 can be arranged is formed between the tip portions of the pair of side portions 472, 473. The bottom portion 471 and the pair of side portions 472, 473 form a groove portion 475 into which the base portion 11A of the tight material 11 is fitted and mounted. On the indoor side of the bottom portion 471, the protruding piece 45 is arranged at a position overlapping in the Z-axis direction, and is received in the Z-axis direction by this protruding piece 45. On the bottom portion 471, an engaged protrusion 471A with which the engaging claw portion 451 of the protruding piece 45 is engaged in a snap fit manner protrudes toward the indoor side in the Z-axis direction. The tip portion of the side portion 472 is formed longer in the X-axis direction than the tip portion of the side portion 473, and the opening 474 is arranged at a position closer to the side portion 473. For this reason, a shoulder portion 472A is formed on the side portion 472 so as to be large and easy to apply the bead material 12. The above-mentioned concave portion 47 constitutes a receiving portion 48 to which an airtight material 10 such as a tight material 11 that abuts against the shoji 7 or a bead material 12 that abuts against the panel 8 can be attached. The receiving portion 48 is disposed at a position on the inner peripheral side with respect to the position of the prospective surface portion 424 of the metal vertical frame member 42.

[0014] The vertical frame 51 extends along the Y-axis direction and constitutes a vertical frame that holds the vertical edge portion of the panel 8 in the fixed window portion 1B. As shown in FIGS. 1 and 7, the vertical frame 51 is a composite frame material formed by combining an outdoor metal vertical frame member 52 (metal frame member) and an indoor resin vertical frame member 56 (resin frame member). The metal vertical frame member 52 is made of metal and is formed of an extruded aluminum extruded shape in this embodiment. The metal vertical frame member 52 has an outdoor finding surface portion 521 and an indoor finding surface portion 522 along the X-axis direction, and prospective surface portions 523 and 524 along the Z-axis direction that are continuous with the outdoor finding surface portion 521 and the indoor finding surface portion 522. The outdoor finding surface portion 521, the indoor finding surface portion 522, and the prospective surface portions 523 and 524 form a substantially rectangular metal frame body 53 having a hollow portion along the X-axis direction. The prospective surface portion 523 located on the outer peripheral side extends to the outdoor side beyond the outdoor finding surface portion 521 and also extends to the indoor side beyond the indoor finding surface portion 522. The prospective surface portion 524 located on the inner peripheral side with respect to the prospective surface portion 523 extends to the indoor side beyond the indoor finding surface portion 522. At the indoor end of the prospective surface portion 524, a protruding piece 55 protruding toward the vertical frame 41 side (inner peripheral side) in the X-axis direction is formed. An engaging claw portion 551 protruding to the outdoor side is formed on the protruding piece 55. Further, a panel pressing portion 525 protruding toward the vertical frame 41 side in the X-axis direction is formed on the prospective surface portion 524. A bead material 13 is fitted and attached to the panel pressing portion 525, and the panel 8 is held from the outdoor side by bringing the bead material 13 into contact with the outdoor surface of the panel 8. A fitting recess 522A into which a fitting piece 562A (to be described later) of the resin vertical frame member 56 is fitted is formed at the outer peripheral end of the indoor finding surface portion 522. The above-mentioned protruding piece 55 constitutes a restricting portion 59 that restricts the movement of a receiving portion 58 (to be described later) toward the inner peripheral side of the window frame 2. The resin vertical frame member 56 is made of synthetic resin and is formed by an extruded resin member obtained by extrusion molding in the present embodiment. The resin vertical frame member 56 has a hollow frame portion 561 that forms a hollow portion along the X-axis direction, a finding surface portion 566 that extends from the hollow frame portion 561 toward the vertical frame 41 side in the X-axis direction, a prospective surface portion 567 that extends from the indoor end portion of the finding surface portion 566 to the outdoor side in the Z-axis direction, and a concave portion 57 that is continuous with the prospective surface portion 567. The hollow frame portion 561 has an outdoor surface portion 562 and an indoor surface portion 563 along the X-axis direction, and a pair of side surface portions 564 and 565 along the Z-axis direction that are continuous with the outdoor surface portion 562 and the indoor surface portion 563. The outdoor surface portion 562, the indoor surface portion 563, and the pair of side surface portions 564 and 565 form a hollow portion along the X-axis direction. The side surface portion 564 is arranged along the indoor side portion of the prospective surface portion 423 of the metal vertical frame member 52. A fitting piece 562A that protrudes in the Z-axis direction toward the outdoor side is formed at the continuous portion of the outdoor surface portion 562 and the side surface portion 564. An extension piece 569 that extends in the Z-axis direction toward the indoor side is formed at the continuous portion of the indoor surface portion 563 and the side surface portion 565. The side surface portion 565 has a substantially L-shaped step portion 565A in plan view. The hollow frame portion 561, the finding surface portion 566, and the prospective surface portion 567 constitute a covering portion 568 that covers the metal vertical frame member 52 from the indoor side, and the covering portion 568 covers the indoor finding surface portion 522 of the metal vertical frame member 52, the indoor side portion of the prospective surface portion 524, and the protruding piece 55. The concave portion 57 has a bottom portion 571 extending from the prospective surface portion 567 of the resin vertical frame member 56 toward the prospective surface portion 524 side of the metal vertical frame member 52 in the X-axis direction, a side portion 572 along the Z-axis direction formed at a portion of the prospective surface portion 567 located outside the room with respect to the bottom portion 571, and a side portion 573 along the Z-axis direction that is continuous with the bottom portion 571 and extends from the bottom portion 571 to the outside of the room. The tip portions of the pair of side portions 572 and 573 extend in a direction approaching each other in the X-axis direction, and an opening 574 in which the tight material 11 can be disposed is formed between the tip portions of the pair of side portions 572 and 573. The bottom portion 571 and the pair of side portions 572 and 573 form a groove portion 575 into which the base portion 11A of the tight material 11 can be fitted and mounted. The bottom portion 571 is disposed at a position where the protruding piece 55 overlaps in the Z-axis direction on the indoor side thereof, and is received in the Z-axis direction by this protruding piece 55. On the bottom portion 571, an engaged protrusion 571A with which the engaging claw portion 551 of the protruding piece 55 is engaged in a snap fit manner protrudes toward the indoor side in the Z-axis direction. The side portion 572 constitutes a shoulder portion 572A on which the bead material 12 can be applied. The bead material 12 for receiving the panel 8 from the indoor side is applied to the shoulder portion 572A. The above-described concave portion 57 constitutes a receiving portion 58 to which an airtight material 10 such as the tight material 11 that abuts against the shoji 7 and the bead material 12 that abuts against the panel 8 can be attached. The receiving portion 58 is disposed at a position on the inner peripheral side with respect to the position of the prospective surface portion 524 of the metal vertical frame member 52.

[0015] [Opening window portion] As described above, the opening window portion 1A of the window unit 1 is configured such that a frame body of the opening window portion 1A is formed by the upper frame 21, the lower frame 31, the vertical frames 41, and the intermediate vertical frame 61 (vertical frame), and the shoji 7 is disposed in the frame body so as to be openable and closable. The upper frame 71, lower frame 72, and left and right vertical frames 73, 74 of the shoji 7 are composite frames formed by combining a metal frame material 70A on the outdoor side and a resin frame material 70B on the indoor side. The vertical frame 73 constitutes the vertical frame on the suspension side, and the vertical frame 74 constitutes the vertical frame on the door tip side. The vertical frame 73 constitutes the vertical frame on the suspension side, and as shown in FIG. 6, it is rotatably connected to the vertical frame 41 via the prospective surface portion 424 of the metal vertical frame material 42 and the hinge 5 attached to the prospective surface portion of the vertical frame 73, enabling the shoji 7 to be opened and closed between indoors and outdoors by this rotation. In the closed state of this opening window portion 1A, the indoor surface of each resin frame material 70B abuts against the tight material 11 attached to each frame material, thereby forming a tight line in the opening window portion 1A. Also, in the open state, the frame body 75 is separated from the frame body, opening the opening partitioned by the frame body.

[0016] [Fixed window portion] The fixed window portion 1B of the window unit 1 is configured such that the frame body of the fixed window portion 1B is formed by the upper frame 21, lower frame 31, vertical frame 51, and intermediate vertical frame 61 as described above, and a panel 8 is fixed within this frame body. An upper sleeve frame 82 for holding the upper part of the facing material 81 is attached to the upper frame 21, and a lower sleeve frame 83 for holding the lower part of the facing material 81 is attached to the lower frame 31. The upper sleeve frame 82 and the lower sleeve frame 83 are each constituted by combining a metal sleeve frame material 801, 802 on the outdoor side and a resin sleeve frame material 803, 804 on the indoor side. The metal sleeve frame materials 801, 802 are fixedly engaged with the upper frame 21 and the lower frame 31, and the resin sleeve frame materials 803, 804 are engaged with the indoor side portions of the metal sleeve frame materials 801, 802. In addition, presser portions 801A and 802A for pressing the facing material 81 from the outdoor side are formed on the metal sleeve frame members 801 and 802. Bead materials 13 are respectively fitted and attached to the presser portions 801A and 802A, and by the bead materials 13 abutting against the outdoor surface of the facing material 81, the facing material 81 is pressed from the outdoor side. Receiving portions 803A and 804A for receiving the facing material 81 from the indoor side are formed on the resin sleeve frame members 803 and 804. Bead materials 12 are respectively hung and attached to the receiving portions 803A and 804A, and by the bead materials 12 abutting against the outdoor surface of the facing material 81, the facing material 81 is received from the indoor side.

[0017] [Action during a fire] When the temperature rises during a fire, the above window unit 1 becomes a state where each resin part softens and easily moves to the inner peripheral side or the like.

[0018] In the case of the opening window portion 1A, it is as follows. In the upper frame 21, since the bottom portion 271 in the concave portion 27 of the resin upper frame member 26 is received in the Z-axis direction by the protruding piece 25 which is the regulating portion 28 of the metal upper frame member 22, the receiving portion 29 is held in a predetermined position in the Z-axis direction. Also, since the engaged protruding portion 271A of the bottom portion 271 is engaged with the engaging claw portion 251 of the protruding piece 25, the movement of the receiving portion 29 and its periphery downward (inner peripheral side) is suppressed. For this reason, the intrusion of flames from between the upper frame 21 and the shoji 7 is suppressed. In the lower frame 31, except for the resin cover 35, it is made of aluminum, and the receiving portion 39 to which the tight material 11 is attached is also made of aluminum. Therefore, the movement of the receiving portion 39 is less likely to occur compared to the case where the receiving portion 39 is made of resin. For this reason, the intrusion of flames from between the lower frame 31 and the shoji 7 is suppressed. Note that the lower frame 31 is disposed at the lower part of the window unit 1, and since the temperature rise is less likely to occur in the configuration of the upper part than the lower frame 31, even if the receiving portion 39 is made of resin, deformation and movement due to softening are less likely to occur. In the vertical frame 41, since the bottom portion 471 in the concave portion 47 of the resin vertical frame member 46 is received in the Z-axis direction by the protruding piece 45 which is the restricting portion 49 of the metal vertical frame member 42, the receiving portion 48 is held in a predetermined position in the Z-axis direction. Also, since the engaged protruding portion 471A of the bottom portion 471 is engaged with the engaging claw portion 451 of the protruding piece 45, movement of the receiving portion 48 and its periphery toward the intermediate vertical frame 61 side (inner peripheral side), or tilting of the resin vertical frame member 46 toward the inner peripheral side, is suppressed. For this reason, intrusion of flames from between the vertical frame 41 and the shoji 7 is suppressed. In the intermediate vertical frame 61 (vertical frame), since the bottom portion 681 in the concave portion 68 of the resin intermediate frame member 66 is received in the Z-axis direction by the protruding piece 65 which is the restricting portion 65A of the metal intermediate frame member 62, the concave portion 68 which constitutes the receiving portion is held in a predetermined position in the Z-axis direction. Also, since the engaged protruding portion 681A of the bottom portion 681 is engaged with the engaging claw portion 651 of the protruding piece 65, movement of the concave portion 68 and its periphery toward the vertical frame 41 side (inner peripheral side), or tilting of the resin intermediate frame member 66 toward the inner peripheral side, can be suppressed. For this reason, intrusion of flames from between the intermediate vertical frame 61 and the shoji 7 is suppressed. In this way, in the opening window portion 1A, by using the composite frame member to maintain heat insulation and suppressing intrusion of flames as described above, the fire resistance is improved.

[0019] In the fixed window portion 1B, it is as follows. In the upper frame 21, since the receiving portion 29 for receiving the sleeve upper frame 82 is received in the Z-axis direction by the protruding piece 25 of the metal upper frame member 22, the receiving portion 29 is held in a predetermined position in the Z-axis direction. Also, since the engaged portion of the bottom portion 271 is engaged with the engaging claw portion 251 of the protruding piece 25, movement of the receiving portion 29 and its periphery downward (inner peripheral side) is suppressed. For this reason, intrusion of flames from between the upper frame 21 and the panel 8 is suppressed. In the lower frame 31, since the receiving portion 39 is also made of aluminum, movement of the receiving portion 39 is less likely to occur compared to the case where the receiving portion 39 is made of resin, for example. For this reason, intrusion of flames from between the lower frame 31 and the panel 8 is suppressed. In the vertical frame 51, since the bottom portion 571 in the concave portion 57 of the resin vertical frame member 56 is received in the Z-axis direction by the protruding piece 55 which is the restricting portion 59 of the metal vertical frame member 52, the receiving portion 58 is fixed at a predetermined position in the Z-axis direction. Also, since the engaged protruding portion 571A of the bottom portion 571 is engaged with the engaging claw portion 551 of the protruding piece 55, it is possible to suppress the receiving portion 58 and its periphery from moving to the intermediate vertical frame 61 side (inner peripheral side), or the resin vertical frame member 56 from falling to the inner peripheral side. For this reason, it is possible to suppress the intrusion of flames from between the vertical frame 51 and the panel 8. In the intermediate vertical frame 61 (vertical frame), since the concave portion 69 of the resin intermediate frame member 66 is reinforced by the reinforcing piece portion 697, and the claw portion 696A of the engaging piece portion 696 is engaged with the engaging piece portion 629 of the metal intermediate frame member 62, the concave portion 69 is fixed at a predetermined position. Also, it is possible to suppress the concave portion 69 and its periphery from moving to the vertical frame 51 side (inner peripheral side), or the resin intermediate frame member 66 from falling to the inner peripheral side. For this reason, it is possible to suppress the intrusion of flames from between the intermediate vertical frame 61 and the panel 8. As described above, in the fixed window portion 1B, by using the composite frame member to maintain heat insulation and suppressing the intrusion of flames as described above, the fire resistance is improved.

[0020] [Modification Example] In the above-described embodiment, the window unit 1 (hinged window with a single sleeve) having the hinged window portion 1A and the fixed window portion 1B has been described as a fitting, but the present invention is not limited thereto. For example, as shown in FIG. 8, a fitting may be configured by the hinged window 100. The hinged window 100 has a shoji 7 disposed therein so as to be openable and closable within a frame body constituted by the upper frame 21, the lower frame 31, and the left and right vertical frames 41 and 51 described above. The vertical frame 41 constitutes the vertical frame on the hanging side, and the vertical frame 51 constitutes the vertical frame on the door end side. Instead of the bead material 12, a tight material 11 is fitted and attached to the vertical frame 51. Also in this hinged window 100, as described above, it is possible to improve the fire resistance while maintaining the heat insulation.

[0021] In the above-described embodiment, each of the protruding pieces 25, 45, 55, and 65 is provided, but the present invention is not limited thereto. When it is sufficient for fire prevention, a configuration having only at least any one of the protruding pieces 25, 45, 55, and 65 may be used. Further, although the protruding pieces 25, 45, 55, and 65 are arranged so as to overlap the indoor side with respect to the respective concave portions 27, 47, 57, and 68, if it is possible to suppress the movement of the concave portions 27, 47, 57, and 68 toward the inner peripheral side, a different arrangement from the above arrangement may be used. Furthermore, if it is possible to suppress the movement of the concave portions 27, 47, 57, and 68 toward the inner peripheral side, the engaging claw portions 251, 451, 551, and 651 of the protruding pieces 25, 45, 55, and 65 and the configured engaged protrusions 271A, 471A, 571A, and 681A of the concave portions 27, 47, 57, and 68 may be omitted. In the above-described embodiment, the openings 275, 474, 574, 684, and 694 respectively formed between the side portions 272, 682, 472, 572, and 692 and the side portions 273, 683, 473, 573, and 693 may be arranged at positions closer to the side portions 272, 682, 472, 572, and 692 according to the usage form in which the airtight material 10 is attached, may be arranged at positions closer to the side portions 273, 683, 473, 573, and 693, or may be arranged at the central position between the side portions 272, 682, 472, 572, and 692 and the side portions 273, 683, 473, 573, and 693. In the above-described embodiment, the resin upper frame member 26 and the resin vertical frame members 46 and 56 are formed with covering portions 265, 468, and 568 that cover at least a part of the metal upper frame member 22 and the metal vertical frame members 42 and 52 from the indoor side, and the resin intermediate frame member 66 covers at least a part of the metal intermediate frame member 62 from the indoor side. However, the present invention is not limited thereto. For example, when sufficient heat insulation between the indoor and outdoor sides is obtained, the covering portions 265, 468, and 568 may not be configured, and the resin intermediate frame member 66 may be configured without covering at least a part of the metal intermediate frame member 62 from the indoor side. In the above-described embodiment, the metal frame members 22, 42, 52, and 62 are integrally and continuously formed. However, the present invention is not limited thereto. For example, the metal frame members 22, 42, 52, and 62 may be composed of an outdoor member and an indoor member made of metal and a heat insulating material such as urethane resin provided between the outdoor member and the indoor member. In this case, the heat insulation between the indoor and outdoor sides of the metal frame members 22, 42, 52, and 62 can be improved. In the above-described embodiment, the lower frame 31 is made of an aluminum extrusion molding and has a resin cover 35 attached thereto, and is configured to have high strength. However, the present invention is not limited thereto, and if it has sufficient strength, it may be configured with a composite molding in which a metal frame member on the outdoor side and a resin frame member on the indoor side are combined. In the above-described embodiment, the window unit 1 which is a single-sleeve opening window is configured as a fitting. However, in addition to this, various windows with both sleeves or various windows without sleeves may be used. As the various windows, windows that can be opened and closed may be used, or fixed windows that cannot be opened and closed may be used. Further, it may be a single layer, or a continuous window or a stepped window may be used. Furthermore, the present invention is not limited to windows, and for example, it may be configured with various doors such as a single-sleeve door, a double-sleeve door, or a single-opening door. As the door, an entrance door or a sliding door having a flush structure may be used.

[0022] [Summary of the Invention] (1) The fitting of the present invention is a fitting including a frame body and a panel body disposed within the frame body, wherein the frame body is configured by combining a metal frame member on the outdoor side and a resin frame member on the indoor side, the resin frame member has a receiving portion to which an airtight material that abuts against the panel body is attached, the metal frame member has a restricting portion that engages with the receiving portion, and the restricting portion restricts movement of the receiving portion toward the inner peripheral side of the frame body. According to the fitting of the present invention, by combining the metal frame member on the outdoor side with the resin frame member on the indoor side, heat insulation between the indoor and outdoor can be maintained. Moreover, as described above, in the event of a fire, the resin frame member softens, and movement of the receiving portion that receives the panel body toward the inner peripheral side can be restricted by the restricting portion, thereby reducing the risk of leading to the intrusion of flames and improving fire resistance. (2) In the fitting of the present invention, the metal frame member has a prospective surface portion where the receiving portion is disposed on the inner peripheral side, the restricting portion is configured by a protruding piece that protrudes from the prospective surface portion toward the inner peripheral side, and the protruding piece may be disposed to overlap the receiving portion on the indoor side and engage with the receiving portion. According to such a configuration, since the protruding piece protruding from the prospective surface portion of the metal frame member is disposed and engaged with the receiving portion on the indoor side, during a fire, as described above, the movement of the receiving portion toward the inner peripheral side can be suppressed, and the receiving portion can be retained at a predetermined position by supporting the receiving portion from the indoor side in the prospective direction, and the receiving portion can be stably supported. (3) In the fitting of the present invention, the resin frame member may have a covering portion that is continuous with the receiving portion and covers the protruding piece from the indoor side. According to such a configuration, the design property can be improved without the protruding piece being exposed on the indoor side, and since the protruding piece, which is a metal portion connected to the outdoor side, is covered with the above-described covering portion, the heat insulation property can be improved. (4) In the fitting of the present invention, the metal frame member may include an outdoor member made of metal, an indoor member made of metal disposed on the indoor side with respect to the outdoor member, and a heat insulating material provided between the outdoor member and the indoor member. According to such a configuration, since the heat insulating material is provided between the outdoor member and the indoor member that constitute the metal frame member in which the above-described regulating portion is formed, the heat insulation property of the frame body can be improved. (5) In the fitting of the present invention, the frame body may include an upper frame, a lower frame, and left and right vertical frames, and at least the upper frame and the left and right vertical frames may be configured by combining the metal frame member having the regulating portion and the resin frame member having the receiving portion. According to such a configuration, during a fire, the temperature of the upper portion tends to rise, and the left and right vertical frame portions and the upper frame disposed above the lower frame located below are more likely to become hotter than the lower frame. By providing a regulating portion that restricts the movement of the receiving portion toward the inner peripheral side in the left and right vertical frames and the upper frame, the movement of the receiving portion toward the inner peripheral side due to the softening of the resin frame member in the three-sided frame portion can be suppressed, and thereby, the risk leading to the intrusion of flames can be reduced, and an efficient improvement in fire resistance can be achieved. On the other hand, the lower frame, which is less likely to experience a temperature rise compared to the above-described three-sided frame portion, can be configured with, for example, a metal frame member to improve the overall strength. (6) In the fitting of the present invention, the panel body is composed of a shoji that can be opened and closed with respect to the frame body or a panel fixed to the frame body, the airtight material is composed of a tight material that abuts against the shoji or a bead material that abuts against the panel, the receiving portion is formed as a concave portion having a bottom portion that is received from the indoor side by the restricting portion and a pair of side portions continuous with the bottom portion, the concave portion forms a groove portion into which the tight material is fitted, and a shoulder portion on which the bead material is hung may be formed on one of the pair of side portions disposed on the inner peripheral side. According to such a configuration, for example, when the fitting is an opening and closing window that can be opened and closed, the tight material that abuts against the shoji can be fitted and attached to the groove portion of the concave portion. Also, for example, when the fitting is a fixed window in which the panel is fixed to the frame body, the bead material that abuts against the panel can be hung on the shoulder portion of the concave portion. In this way, even if the fitting is an opening and closing window or a fixed window, the resin frame material having the above-described receiving portion can be used in common.

Explanation of Reference Numerals

[0023] 1…Window unit (fitting), 10…Airtight material, 100…Opening window, 11…Tight material, 11A…Base part, 12, 13…Bead material, 1A…Opening window part, 1B…Fixed window part, 2…Window frame (frame body), 21…Upper frame, 22…Metal upper frame material (metal frame material), 23, 43, 53…Metal frame body, 24…Indoor projected surface part (projected surface part), 241, 469, 569…Extended piece, 241A…Base end part, 242, 243…Engaging piece, 243A, 251, 261A, 451, 551, 651…Engaging claw part, 25, 45, 55, 65…Projecting piece, 26…Resin upper frame material (resin frame material), 261, 421, 521, 621…Outdoor finding surface part, 262, 422, 522, 622…Indoor finding surface part, 262A…Engaging step part, 263, 423, 424, 467, 523, 524, 567, 623, 624, 672, 673…Projected surface part, 264…Continuous surface part, 265…Covering part, 27, 47, 57, 68, 69…Concave part, 271, 471, 571, 681, 691…Bottom part, 271A, 471A, 571A, 681A…Engaged protruding part, 272, 273, 472, 473, 572, 573, 682, 683, 692, 693…Side part, 272A, 472A, 572A…Shoulder part, 273A…Piece, 275, 474, 574, 684, 694…Opening, 276, 475, 575, 685, 695…Groove part, 28, 49, 59, 65A…Regulating part, 29, 39, 48, 58, 68A, 69A, 803A, 804A…Receiving part, 31…Lower frame, 32…Lower frame body, 33…Indoor frame part, 34…Continuous finding surface part, 35…Resin cover, 41, 51…Vertical frame, 42, 52…Metal vertical frame material (metal frame material), 422A, 522A…Fitting concave part, 46, 56…Resin vertical frame material (resin frame material), 461, 561…Hollow frame part, 462, 562…Outdoor surface part, 462A, 562A…Fitting piece, 463, 563…Indoor surface part, 464, 465, 564, 565…Side surface part, 465A, 565A, 626…Step part, 466, 566, 671…Finding surface part, 468, 568…Covering part, 5…Hinge, 525, 625…Panel pressing part, 61…Intermediate vertical frame (vertical frame), 62…Metal intermediate frame material (metal frame material), 627…Bottom wall, 628…Side wall, 629, 696…Engaging piece part, 66…Resin intermediate frame material (resin frame material), 67…Resin intermediate frame body, 674…Convex part, 696A…Claw part, 697…Reinforcing piece part, 7…Shoji (panel body), 70A…Metal frame material, 70B…Resin frame material, 71…Upper frame, 72…Lower frame, 73, 74…Vertical frame, 75…Frame body, 76,81... face material, 8... panel (panel body), 801, 802... metal sleeve frame material, 801A, 802A... pressing part, 803, 804... resin sleeve frame material, 82... upper sleeve frame, 83... lower sleeve frame.,

Claims

1. A fitting comprising a frame body and a panel body disposed within the frame body, wherein the frame body is configured by combining a metal frame member on the outdoor side and a resin frame member on the indoor side, the resin frame member has a receiving portion to which an airtight material that abuts against the panel body is attached, the metal frame member has a restricting portion that engages with the receiving portion, and the restricting portion restricts movement of the receiving portion toward the inner peripheral side of the frame body. The fitting is characterized by this.

2. In the fitting according to Claim 1, the metal frame member has an expected surface portion where the receiving portion is disposed on the inner peripheral side, the restricting portion is composed of a protruding piece that protrudes from the expected surface portion toward the inner peripheral side, and the protruding piece is disposed so as to overlap the receiving portion on the indoor side and engages with the receiving portion. The fitting is characterized by this.

3. In the fitting according to Claim 2, the resin frame member has a covering portion that is continuous with the receiving portion and covers the protruding piece from the indoor side. The fitting is characterized by this.

4. In the fitting according to Claim 1, the metal frame member includes a metal outdoor member, a metal indoor member disposed on the indoor side with respect to the outdoor member, and a heat insulating material provided between the outdoor member and the indoor member. The fitting is characterized by this.

5. In the fitting according to Claim 1, the frame body has an upper frame, a lower frame, and left and right vertical frames, and at least the upper frame and the left and right vertical frames are configured by combining the metal frame member having the restricting portion and the resin frame member having the receiving portion. The fitting is characterized by this.

6. In the fitting according to Claim 1, the panel body is composed of a shoji that can be opened and closed with respect to the frame body or a panel fixed to the frame body, the airtight material is composed of a tight material that abuts against the shoji or a bead material that abuts against the panel, the receiving portion is formed as a concave portion having a bottom portion that is received from the indoor side by the restricting portion and a pair of side portions continuous with the bottom portion, the concave portion forms a groove portion into which the tight material is fitted, and a shoulder portion on which the bead material is hung is formed on one of the pair of side portions disposed on the inner peripheral side. The fitting is characterized by this.

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