Doors and windows

Abstract

The present invention provides a joinery component that does not require the use of special parts to accommodate the heat-expanding material, and is also easy to assemble. [Solution] The joinery 10 has a frame 22 positioned on the inner circumference side of the frame 12. The metal vertical frame 57 of the frame 22 has a first wall hole 82a and a second wall hole 82b that connect the inner circumference side and the outer circumference side of the frame 22. The metal vertical frame 40 of the frame 12 is provided with a heat-expandable material 86 at a position facing the first wall hole 82a and the second wall hole 82b, at a position below the same height as the lower opening 59j of the vertical frame hollow part 59, and at a position facing the hole 59g through which the head of the screw 78 passes.

Description

Technical Field

[0006] , , ,

[0001] The present invention relates to a fitting in which a sash is arranged on the inner peripheral side of a frame body.

Background Art

[0002] [[ID=]11]<The shoji in which the panel is surrounded by the sash is arranged on the inner peripheral side of the frame body, and drain holes may be formed in the vertical sash of the shoji. The drain holes communicate the inner peripheral side and the outer peripheral side of the sash, and since there is a concern that smoke may enter during a fire, a heat-expandable material may be arranged in the vicinity. In Patent Document 1, drain holes are formed in the prospective wall on the inner peripheral side in the hollow portion of the vertical sash, and a heat-expandable material is provided inside the hollow portion. In Patent Document 1, a dedicated mounting member is screwed inside the hollow portion, and the heat-expandable material is attached to the mounting member.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In Patent Document 1, a dedicated mounting member must be set up to provide a heat-expandable material, increasing the number of parts and the number of assembly steps.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a fitting that does not require the use of dedicated parts to provide a heat-expandable material and is easy to assemble.

Means for Solving the Problems

[0006] <00 extraordinar000033>​To solve the above-mentioned problems and achieve the objective, the building fitting according to the present invention is a building fitting in which a frame body is arranged on the inner circumference side of a frame body, wherein the vertical frame of the frame body has a communication hole formed therein that connects the inner circumference side and the outer circumference side of the frame body, and the vertical frame of the frame body is provided with a heat-expandable material at a location that closes the communication hole when heated. [Effects of the Invention]

[0007] In the joinery according to the present invention, the heat-expandable material is provided in the vertical frame, eliminating the need to use special parts to provide the heat-expandable material in the vertical stile, and also simplifying assembly. [Brief explanation of the drawing]

[0008] [Figure 1] This is a view of a door / window according to an embodiment of the present invention, as seen from the interior side. [Figure 2] This is a longitudinal cross-sectional view of a building component that is an embodiment of the present invention. [Figure 3] This is a cross-sectional view of a building component that is an embodiment of the present invention. [Figure 4] This is a perspective view of the lower end of a door or window, which is an embodiment of the present invention, as seen from the interior side. [Figure 5] This is a perspective view of the intersection of the vertical and bottom frames in a frame structure, seen from the oblique inner side. [Figure 6] This is a exploded perspective view of the vertical and bottom frames of a frame structure. [Figure 7] This is a partial cross-sectional perspective view of the intersection of the metal vertical frame and the metal lower frame, seen from an oblique angle on the exterior side. [Figure 8] This is a side view of the lower part of a door or window frame, specifically the bottom frame, vertical stile, and bottom stile. [Modes for carrying out the invention]

[0009] The embodiments of the building components according to the present invention will be described in detail below with reference to the drawings. However, the present invention is not limited to these embodiments.

[0010] In the following, for convenience, the terms "depth direction" and "face direction" may be used. The depth direction (indicated by arrow Z in the diagram) is the direction of interior and exterior along the depth of the joinery. Surfaces and walls along the depth direction may be called the depth surface and depth wall. The face direction is the direction along the vertical direction perpendicular to the depth direction (indicated by arrow Y in the diagram) for elements that extend horizontally, such as top frames, bottom frames, top stiles, and bottom stiles. For elements that extend vertically, such as vertical frames and vertical stiles, it is the direction along the horizontal direction perpendicular to the depth direction (indicated by arrow X in the diagram). Surfaces and walls along the face direction may be called the face surface and face wall.

[0011] Figure 1 is a view of the interior side of the joinery 10 according to an embodiment of the present invention. Figure 2 is a vertical cross-sectional view of the joinery 10. Figure 3 is a horizontal cross-sectional view of the joinery 10. The joinery 10 is a vertical sliding window, which holds a sash 14 on the inner circumference side of the frame 12 and opens by sliding the sash 14 outwards along a rail. The joinery 10 is applied to buildings such as office buildings.

[0012] The shoji screen 14 is constructed by arranging a panel 24 inside a frame body 22, which is formed by assembling a lower frame 16, an upper frame 18, and left and right vertical frames 20 around the perimeter. The frame body 12 is constructed by assembling a lower frame 26, an upper frame 28, and left and right vertical frames 30 around the perimeter. Each frame material and each frame material is a composite material made by combining extruded profiles of metal such as aluminum alloy and resin materials, and each is constructed to have a substantially uniform cross-sectional shape along its entire length.

[0013] The lower frame 26 is a combination of a metal lower frame 32 that mainly constitutes the outer perimeter and exterior side and a resin lower frame 34 that mainly constitutes the inner perimeter and interior side. The resin lower frame 34 may also constitute part of the floor surface. The upper frame 28 is a combination of a metal upper frame 36 that mainly constitutes the outer perimeter and exterior side and a resin upper frame 38 that mainly constitutes the inner perimeter and interior side. The left and right vertical frames 30 are basically symmetrical in structure. The vertical frames 30 are a combination of a metal vertical frame 40 that mainly constitutes the outer perimeter and exterior side and a resin vertical frame 42 that mainly constitutes the inner perimeter and interior side. In this way, the frame body 12 is a metal-resin composite window frame. A hollow space is provided between each metal frame and each resin frame for heat insulation. Each resin frame functions as a decorative frame. In this embodiment, the metal upper frame 36 and the metal vertical frame 40 have the same shape except for details such as screw holes and some dimensions. In this embodiment, the resin upper frame 38 and the resin vertical frame 42 have the same shape except for the visible dimensions. The depth dimensions of each resin frame are the same.

[0014] The bottom frame 16 and the top frame 18 have a basically vertically symmetrical structure. The left and right vertical frames 20 have a basically left-right symmetrical structure. Seals 44 are provided in the gaps in the depth direction between the bottom frame 16 and the bottom frame 26, between the top frame 18 and the top frame 28, and between the vertical frame 20 and the vertical frame 30. Friction stays 46 for the sliding function are provided in the gaps in the visibility direction between the bottom frame 16 and the bottom frame 26, and between the top frame 18 and the top frame 28. The friction stays 46 are link mechanisms that perform the opening and closing operation of the sash 14 relative to the frame 12. A pull-in member 47 is provided between the left vertical frame 20 and the vertical frame 30 in Figure 3. Since the vertical sliding window is not directly connected by hinges, when closed, the tilt is used to pull the sash towards the room by the pull-in member 47. In Figure 3, a handle 50 is provided on the right-hand vertical frame 20, which engages with and disengages from the latch member of the vertical frame 30 to open and close the sash 14. In this embodiment, the panel 24 is made of double-glazed glass.

[0015] The lower frame 16 has a metal lower frame 52 and a pressing edge 54. Among these, the pressing edge 54 is composed of a metal pressing edge 54a and a resin pressing edge 54b, and the lower frame 16 is a metal-resin composite frame. The metal lower frame 52 has three hollow parts 49, 51, 53 arranged in the prospective direction, and on the outdoor side, an inner peripheral side outdoor finding piece 52a protruding toward the inner peripheral side and an outer peripheral side outdoor finding piece 52b protruding toward the outer peripheral side are provided.

[0016] The three hollow parts 49, 51, 53 (also refer to FIGS. 5 and 6) are arranged in this order from the outdoor side toward the indoor side. The hollow part 49 is substantially square and smaller than the hollow parts 51, 53. The inner peripheral side outdoor finding piece 52a and the outer peripheral side outdoor finding piece 52b protrude so as to be continuous from the outdoor side finding surface of the hollow part 49. The hollow part 51 is long in the prospective direction, and substantially half of the outdoor side is formed so as to be continuous from the hollow part 49. The upper side of this part is called an upper wall 51a. The upper wall 51a protrudes slightly toward the indoor side to form a protruding piece 51b. The end of the metal pressing edge 54a is engaged with the protruding piece 51b. Substantially half of the indoor side in the hollow part 51 is slightly lower than the hollow part 49. The upper side of this part is called a step wall 51c. The step wall 51c forms the bottom wall of a shallow recess 51d that opens upward between the hollow part 53. The lower side of the hollow part 51 is called a lower wall 51e. A C-shaped screw hole 51f is formed at the outdoor side upper corner part in the hollow part 51.

[0017] The hollow part 53 is slightly higher than the outdoor side parts of the hollow part 49 and the hollow part 51, and has a height about twice that of the indoor side part of the hollow part 51. The upper wall of the hollow part 53 protrudes slightly toward the outdoor side to form a protruding piece 53b. A part of the metal pressing edge 54a is engaged with the protruding piece 5)a. A rectangular depression 53b is formed in the upper part of the indoor side of the hollow part 53. A C-shaped screw hole 53c is formed adjacent to the depression 53b at the indoor side upper corner part in the hollow part 53. The screw hole 51f and the screw hole 53c have the same shape. The fitting 10 is further provided with a plurality of screw holes, but the description is omitted here.

[0018] The metal edge trim 54a and the resin edge trim 54b are engaged with each other. The metal edge trim 54a is plate-shaped and its tip is engaged with the protruding piece 51b of the metal lower frame 52. The resin edge trim 54b is substantially square with two hollow portions and is engaged with the outdoor-side end portion of the metal lower frame 52. The inner peripheral side outdoor finding piece 52a and the resin edge trim 54b protrude inward, and hold the edge of the panel 24 via the seal 56 respectively. A backup material is provided on the seal 56. The space formed by surrounding the edge of the panel 24 by the metal lower frame 52, the inner peripheral side outdoor finding piece 52a, and the resin edge trim 54b on three sides is called the panel holding space 55. Similar panel holding spaces 55 are formed above, below, left, and right of the panel 24 and communicate with each other. A small amount of water can enter the panel holding space 55.

[0019] The vertical frame 20 has a metal vertical frame 57 and an edge trim 54. The edge trim 54 of the vertical frame 20 is the same as that provided on the lower frame 16. The metal vertical frame 57 has a vertical frame hollow portion 59 that is long in the prospective direction, and a prospective piece 63 that protrudes further indoors from the indoor-side end portion of the vertical frame hollow portion 59. The vertical frame hollow portion 59 is rectangular with an indoor-side finding wall 59a, an outdoor-side finding wall 59b, an inner peripheral side prospective wall 59c, and an outer peripheral side prospective wall 59d. In this embodiment, the aspect ratio in FIG. 3 is about 4:1. The prospective piece 63 is continuous with the inner peripheral side prospective wall 59c but is slightly thicker than the inner peripheral side prospective wall 59c. The vertical frame hollow portion 59 and the prospective piece 63 have approximately the same prospective dimension. From the outdoor-side finding wall 59b, an inner peripheral side outdoor finding piece 57a protrudes inward and an outer peripheral side outdoor finding piece 57b protrudes outward. A seal 44 is provided on the outer peripheral side outdoor finding piece 57b via a pocket 57ba to seal between the vertical frame 30. The inner peripheral side outdoor finding piece 57a holds the edge of the panel 24 together with the edge trim 54 via the seal 56.

[0020] A flat pocket 59e is formed on the inner circumference of the vertical frame hollow section 59 on the indoor side. The pocket 59e consists of an L-shaped projection on the outdoor side and a T-shaped projection on the indoor side, with the end of the metal trim 54a engaging with the T-shaped projection. A flat pocket 59f is formed on the outer circumference of the vertical frame hollow section 59 on the indoor side, consisting of a pair of opposing L-shaped projections. Pocket 59f is smaller than pocket 59e. A flat pocket 63a is formed on the outer circumference of the projection piece 63, consisting of a pair of opposing L-shaped projections. Pocket 63a is larger than pocket 59e. Pocket 63a is located on the indoor side of the projection piece 63 and is slightly away from the vertical frame hollow section 59. A small hollow section 63b is formed on the outer circumference of the projection piece 63. Pocket 63a and hollow section 63b are located on the front and back sides of the projection piece 63. The depth of the hollow section 63b is approximately half that of the hollow section 59 of the vertical frame. The upper frame 18 has the same configuration as the lower frame 16, or a configuration with some differences in shape and dimensions, so a detailed explanation is omitted.

[0021] The metal upper frame 36 is slightly longer in the depth direction. The resin upper frame 38 protrudes inward from the indoor end of the metal upper frame 36, and the upper frame 28 as a whole has a roughly L-shape. Seals 44 are provided between the resin upper frame 38 and the metal lower frame 52, and between the metal upper frame 36 and the outer-exterior facing piece 52b. Friction stays 46 are provided in the gap between the metal upper frame 36 and the metal lower frame 52 in the facing direction.

[0022] The metal lower frame 32 has a flat hollow section 32a, an outdoor-side facing wall 32b, an outdoor-side hollow section 32c, an intermediate facing wall 32d, an indoor-side facing wall 32e, and an indoor-side facing wall 32f. The flat hollow section 32a has an elongated shape in the depth direction. The outdoor-side facing wall 32b protrudes from the lower end of the flat hollow section 32a towards the outdoors, slightly inclined. The flat hollow section 32a and the outdoor-side facing wall 32b face the lower surface of the metal lower frame 52, and a friction stay 46 is provided in the gap between the flat hollow section 32a and the metal lower frame 52 in the facing direction. The outdoor-side hollow section 32c is a small hollow section at the outdoor end, and the outdoor-side facing wall 32b forms its upper wall.

[0023] The interior end of the flattened hollow section 32a protrudes slightly, and the intermediate visible wall 32d extends upward from its tip. The interior visible wall 32f is located on the interior side of the intermediate visible wall 32d and slightly below the center of the intermediate visible wall 32d. The interior visible wall 32e connects the intermediate visible wall 32d and the interior visible wall 32f, forming a roughly H shape. The portion of the intermediate visible wall 32d above the interior visible wall 32e forms part of the watertight line between the interior and exterior of the joinery 10, and this portion will hereafter be referred to as the watertight visible wall 58.

[0024] At the upper end of the watertight wall 58, a pocket 60 is formed on the outdoor side and a hook 61 on the indoor side. The pocket 60 holds the seal 44 and is formed by a pair of vertically symmetrical protrusions 60a.

[0025] The resin lower frame 34 is a flat, roughly T-shaped piece and has a projection piece 34a and a facing piece 34b that protrudes downward from the projection piece 34a. The projection piece 34a engages with the hook 61 near the outdoor end. The facing piece 34b and the indoor facing wall 32f engage at their tips. The projection piece 34a, the facing piece 34b, the water-stopping facing wall 58, the indoor projection wall 32e, and the indoor facing wall 32f form a space 66. The projection piece 34a has a shallow recess 34c that protrudes into the space 66. A hole 34d is formed in the recess 34c. A drain valve 68 is provided in the hole 34d. Condensation water generated on the indoor side of the panel 24 enters the space 66 through the recess 34c and hole 34d, travels along the indoor projection wall 32e, and is discharged from a predetermined drain hole. The amount of condensation water is small.

[0026] The metal vertical frame 40 has a vertical frame hollow section 70 that is long in the depth direction, and a facing piece 72 that protrudes a short distance inward from the indoor end of the vertical frame hollow section 70, and a facing piece 74 that protrudes a short distance inward. The vertical frame hollow section 70 is rectangular and has an indoor facing wall 70a, an outdoor facing wall 70b, an inner facing wall 70c, and an outer facing wall 70d. The tip of the facing piece 72 is provided with a pocket 60 and a hook 61, similar to the water-stopping facing wall 58, and a seal 44 is provided in the pocket 60 to seal the space between it and the metal lower frame 52. The facing piece 72 and the indoor facing wall 70a are continuous.

[0027] The resin vertical frame 42 has a hollow section 42a, a projection piece 42b, and a facing piece 42c. The hollow section 42a has an irregular shape formed by the joining of two rectangles. The projection piece 42b protrudes from the inner circumference side of the hollow section 42a toward the exterior side. The facing piece 42c protrudes from the interior side of the hollow section 42a toward the outer circumference side. The projection piece 42b engages with the hook 61. The facing piece 42c engages with the tip 74a of the projection piece 74.

[0028] Figure 4 is a perspective view of the lower end of the door 10 as seen from the interior side. Figure 5 is a perspective view of the intersection of the vertical frame 20 and the bottom frame 16 of the frame body 22 as seen from the oblique inner side. Figure 6 is an exploded perspective view of the vertical frame 20 and the bottom frame 16 of the frame body 22. Figures 4, 5, 6, and Figures 7 and 8 (described later) illustrate the lower right portion of the door 10 as seen from the interior side (see Figure 1), but the lower left portion also has a symmetrical configuration.

[0029] As shown in Figure 4, the relationship between the trim strip 54 attached to the vertical frame 20 (hereinafter referred to as trim strip 54A) and the trim strip attached to the lower frame 16 (hereinafter referred to as trim strip 54B) is such that the vertical trim is dominant. In other words, the end of trim strip 54B faces the lower end of trim strip 54A. Trim strip 54A is set to be slightly shorter to account for dimensional tolerances so as not to interfere with the metal lower frame 52 on the lower frame 16, and a small gap 76 may be created between it and the metal lower frame 52.

[0030] As shown in Figures 5 and 6, the relationship between the metal vertical frame 57 and the metal lower frame 52 is such that the vertical orientation prevails. In other words, the end of the metal lower frame 52 faces the lower end of the metal vertical frame 57. The metal lower frame 52 and the metal vertical frame 57 are fixed together by two screws (fixing devices) 78 running along the X direction. The screw on the exterior side 78 is screwed into the screw hole 51f of the metal lower frame 52 through a hole (communication hole, fixing device insertion hole) 59g formed in the outer peripheral wall 59d and a hole 59h formed in the inner peripheral wall 59c. The screw on the interior side 78 is screwed into the screw hole 53c of the metal lower frame 52 through a hole 59i formed in the fascia piece 63. The hole 59g has a diameter sufficient for the head of the screw 78 to pass through. The heads of the screws 78 cannot pass through the holes 59h and 59i, and the inner circumferential wall 59c is fixed to the metal lower frame 52. The holes 59h and 59i are substantially blocked by the heads of the screws 78. The hollow portion 59 of the vertical frame forms a lower opening (communication hole) 59j. The hole 59g is not blocked and communicates with the hollow wall hole 84. In other words, the lower opening 59j and the hole 59g connect the inner and outer sides of the frame body 22 via the hollow wall hole 84.

[0031] As shown in Figure 5, a primary lower frame hole (lower communication hole) 51g is formed in the upper wall 51a, a primary lower frame hole (lower communication hole) 51h is formed in the stepped wall 51c, and a secondary lower frame hole 51i is formed in the lower wall 51e. Each hole 51g, 51h, and 51i is a rectangle that is slightly elongated in the X direction and has arcs at its four corners. The primary lower frame hole 51g is located slightly away from the end of the metal lower frame 52 so as not to expose the screw 78, and its depth extends almost the entire depth of the upper wall 51a excluding the protruding piece 51b, with an X width of about three times the depth. The primary lower frame hole 51h is located on the interior side of the primary lower frame hole 51g, and its depth and X width are approximately half that of the primary lower frame hole 51g. The lower frame secondary hole 51i is positioned offset in the X direction so as not to overlap with the lower frame primary hole 51g, and its depth and X width are approximately equal to those of the lower frame primary hole 51g. The lower frame secondary hole 51i is located slightly away from the end of the metal lower frame 52, its depth extends almost the entire width of the upper wall 51a, and its X width is about three times the depth. Note that a portion of the screw hole 51f is cut away when the lower frame primary hole 51g is drilled. As shown in Figure 6, in the metal vertical frame 57, the lower portion of the vertical frame hollow section 59 and the depth section 63 are cut out and are slightly shorter compared to the inner perimeter exterior facing piece 57a and the outer perimeter exterior facing piece 57b.

[0032] A heat-expandable material 80 is provided on the upper surface (inner circumferential surface) of the upper wall 51a and projection 51b so as to surround three sides of the lower frame primary hole 51g. The heat-expandable material 80 is flattened rectangular U-shaped and consists of a horizontal portion 80a extending in the X direction along the projection 51b and projections 80b and 80c protruding outwards from both ends of the horizontal portion 80a. The heat-expandable material 80 surrounds at least the entire width in the X direction and the entire width of the interior side of the lower frame primary hole 51g. The projection 80b follows the edge of the metal lower frame 52. The projection 80c is on the opposite side of the lower frame primary hole 51g from the projection 80b. The projection 80b and the lower frame primary hole 51g are slightly separated. This is because, as will be described later, the main function of the projection 80b is to seal the hollow wall hole 84 in the event of a fire. The protrusion 80c and the primary hole 51g of the lower frame are close together, but a small gap is maintained between them. The lateral portion 80a of the heat-expandable material 80 extends at least across the entire width in the X direction on the outdoor side of the primary hole 51h of the lower frame. The thickness of the heat-expandable material 80 is, for example, about 1.6 mm. The heat-expandable material 80 is a non-combustible or flame-retardant fire-resistant material that expands with heat, and is, for example, a heat-expandable material such as graphite that foams when heated. The heat-expandable material 86 described later is similar.

[0033] Incidentally, since a small amount of water may enter the internal space of the frame and frame, it is desirable to provide drainage holes to the outside, and it is also desirable to provide ventilation holes to maintain equal pressure so that distortion does not occur due to the pressure difference with the outside air. In this embodiment, the lower frame primary hole 51g, lower frame primary hole 51h, and lower frame secondary hole 51i serve as both drainage holes and ventilation holes for maintaining equal pressure.

[0034] As described above, a small amount of water may enter the panel holding space 55, but this water enters the hollow section 51 through the lower frame primary holes 51g and 51h, and then drains to the outside through the lower frame secondary holes 51i. Here, the lower frame primary hole 51g is surrounded on three sides by the heat-expandable material 80 and is located higher than the lower frame primary hole 51h, so the lower frame primary hole 51h acts more primarily as a drainage hole than the lower frame primary hole 51g.

[0035] On the other hand, when the outside air pressure is high, air enters the hollow section 51 through the lower frame secondary hole 51i and then enters the panel holding space 55 through the lower frame primary hole 51g and lower frame primary hole 51h. The airflow is reversed when the outside air pressure is low. The lower frame primary hole 51g is located closer to the lower frame secondary hole 51i than the lower frame primary hole 51h, and also has a larger area, so the lower frame primary hole 51g acts more primarily as a ventilation hole than the lower frame primary hole 51h. The names lower frame primary hole 51g, lower frame primary hole 51h, and lower frame secondary hole 51i are based on the direction in which water or air escapes from the panel holding space 55 to the outside for ease of understanding, but as mentioned above, air can flow in the reverse direction.

[0036] The heat-expandable material 80 expands when heated during a fire, blocking the primary holes 51g of the lower frame that surround it on three sides, thus preventing smoke from entering from the outside. The primary holes 51g and secondary holes 51i of the lower frame are not positioned to overlap, so the expanded heat-expandable material 80 does not leak out to the outside without resistance. The primary hole 51h of the lower frame is not surrounded by the heat-expandable material 80, but it is nearby and has a small area, so it is blocked by the expanded heat-expandable material 80.

[0037] The heat-expandable material 80 can be attached to the upper wall 51a, which is exposed above before the panel 24 is installed, making the attachment and assembly work easier compared to narrow spaces such as the inside of the hollow section 51. Furthermore, no special mounting parts or jigs are required, and there is no increase in the number of parts or assembly man-hours.

[0038] Figure 7 is a partial cross-sectional perspective view of the lower end of the door / window 10, as seen from the exterior side. In Figure 7, the trim 54 and other elements are omitted. Figure 8 is a side view of the lower part of the door / window 10, showing the bottom frame 26, vertical stile 20, and bottom stile 16. In Figure 8, the bottom stile 16 is shown with a dashed line, and the heat-expanded foam material 86 is shown with a dashed line, with a dotted background in that area.

[0039] The following explanation will be given with reference to Figures 5, 7, and 8. The vertical frame 20 is provided with a first wall hole (communication hole) 82a, a second wall hole (communication hole) 82b, and a hollow wall hole (ventilation hole) 84, which serve as drainage and ventilation holes, similar to the primary holes 51g and 51h of the lower frame 16. The wall holes 82a and 82b connect the inner and outer sides of the frame body 22. The hollow wall hole 84 connects the inner and outer sides of the frame body 22 via the lower opening 59j. Each hole 82a, 82b, and 84 is slightly elongated in the depth direction and is a rectangle with arcs at its four corners. The first wall hole 82a and the second wall hole 82b are provided in positions that avoid the pocket 63a (see Figure 3) and the hollow section 63b in the depth piece 63, and since they communicate directly with the outside air, there is no distinction between primary and secondary.

[0040] The first wall hole 82a and the second wall hole 82b are the same size and relatively small, and are arranged adjacent to each other vertically. The first wall hole 82a is at the bottom, and the second wall hole 82b is at the top. The combined area of ​​the two holes 82a and 82b is about the same as the primary hole 51h of the lower frame. The lower end of the first wall hole 82a coincides with the upper surface of the stepped wall 51c, and drains water that has flowed into the recess 51d. By forming the first wall hole 82a and the second wall hole 82b separately, they are less conspicuous compared to one large hole, and prevent foreign objects of a certain size or larger from becoming stuck.

[0041] The hollow wall hole 84 is located near the lower end of the inner circumferential wall 59c, and its lower end is approximately 2 mm from the upper wall 51a, slightly higher than the projection 80b of the heat-expandable material 80. The hollow wall hole 84 is within the depth of the projection 80b. The heat-expandable material 80 expands when heated, and the hollow wall hole 84 can be sealed mainly by the expansion of the projection 80b. The pocket 59e of the metal vertical frame 57 (see Figure 5) is cut out at the location of the hollow wall hole 84. The area of ​​the hollow wall hole 84 is approximately three times that of the first wall hole 82a and the second wall hole 82b.

[0042] The hollow wall hole 84 communicates with the interior of the hollow section 59 of the vertical frame and communicates with the outside air through the lower opening 59j (see Figure 6) and the hole 59g (see Figure 6). In other words, the hollow wall hole 84 is a primary hole, and the lower opening 59j and the hole 59g are secondary holes.

[0043] As described above, a small amount of water may enter the panel holding space 55, but water that falls down the inner perimeter wall of the vertical frame 20 is discharged to the outside through the second wall hole 82b, or through the hollow wall hole 84 and the lower opening 59j. Water that is not discharged through the second wall hole 82b and the hollow wall hole 84 falls down to the recess 51d and is discharged to the outside through the first wall hole 82a.

[0044] On the other hand, when the outside air pressure is high, air enters the hollow section 59 of the vertical frame through the lower opening 59j and holes 59g, and then enters the panel holding space 55 through the hollow wall holes 84, or enters the panel holding space 55 directly through the first wall holes 82a and second wall holes 82b. The airflow is reversed when the outside air pressure is low.

[0045] On the inner circumferential facing wall 70c of the metal vertical frame 40, a heat-expandable material 86 is provided at the lower part of the inner circumferential facing surface closer to the outdoor side, facing the outer circumferential facing surface of the metal vertical frame 57. The lower edge 86a of the heat-expandable material 86 has a stepped shape that runs from the upper wall 32aa of the flattened hollow portion 32a to the outdoor facing wall 32b. The upper edge 86b covers up to a position somewhat higher than the second wall hole 82b, and the rear edge 86d covers up to a position somewhat indoors from the wall holes 82a and 82b. The front edge 86c of the heat-expandable material 86 covers up to a position somewhat outdoors from the hole 59h, and the lower end 86ca covers up to a position lower than the outer circumferential facing piece 52b, close to the outer circumferential facing piece 52b. The heat-expandable material 86 is larger than the heat-expandable material 80.

[0046] Since the heat-expandable material 86 is provided on the inner circumferential surface of the metal vertical frame 40, including a position facing the wall holes 82a and 82b, it can expand when heated during a fire and seal the wall holes 82a and 82b.

[0047] The heat-expandable material 86 is provided on the inner circumferential surface of the metal vertical frame 40 so as to include the same height as the lower opening 59j and the area below it, and can expand when heated during a fire to close the lower opening 59j.

[0048] The heat-expandable material 86 is provided on the inner circumferential surface of the metal vertical frame 40 so as to include a position facing the hole 59g, and can expand when heated during a fire to seal the hole 59g. In this way, the heat-expandable material 86 seals the wall holes 82a, 82b, the lower opening 59j, and the hole 59g during a fire, preventing smoke from entering from the outside. As described above, the hollow wall hole 84 is sealed by the expansion of the heat-expandable material 80 during a fire, so the hollow portion 59 of the vertical frame is sealed on both the primary and secondary sides.

[0049] Furthermore, a pocket 57ba for holding the seal 44 (see Figure 3) is provided on the indoor side of the outer peripheral exterior facing piece 57b (see Figure 6). Since the pocket 57ba also serves as the outdoor end of the outer peripheral facing wall 59d in the hollow section of the vertical frame 59, it extends together with the pocket 57ba to the lower end of the metal vertical frame 57. Therefore, strictly speaking, the lower opening 59j of the hollow section of the vertical frame 59 has an irregular shape because a part of the outer peripheral facing wall 59d protrudes downwards, but the front edge 86c of the heat-expandable material 86 covers down to a position lower than the outer peripheral exterior facing piece 52b, and can close the lower opening 59j including the vertical pocket 57ba.

[0050] The heat-expandable material 86 can be applied to the inner surface of the metal vertical frame 57 that is exposed when the shoji screen 14 is opened, making the application and assembly work easier compared to narrow spaces such as the inside of the hollow section 59 of the vertical frame. Furthermore, no special mounting parts or jigs are required. Although the hollow section 59 of the vertical frame has a smaller cross-sectional area than the hollow section 70 of the vertical frame, the fluid resistance is small because there are no parts inside, and air and water can easily flow between the hollow wall hole 84 and the lower opening 59j.

[0051] In the joinery 10 according to this embodiment, water that enters the panel holding space 55 can be drained through holes 51g, 51h, and 51i formed in the metal lower frame 52, but it can also be drained through holes 82a, 82b, and 84 formed in the metal vertical frame 57. Of these, the holes 82a, 82b, and 84 formed in the metal vertical frame 57 can suppress water from leaking into the room through gaps 76 that may occur due to the vertical overlap of the trim 54A and trim 54B (see Figure 4).

[0052] The joinery according to this embodiment is a joinery in which a frame body is arranged on the inner circumference side of a frame body, wherein the vertical frame of the frame body has a communication hole formed therein that connects the inner circumference side and the outer circumference side of the frame body, and the vertical frame of the frame body is provided with a heat-expanding material at a location that closes the communication hole when heated.

[0053] The heat-expandable material is installed in the vertical frame, eliminating the need for special parts to install the heat-expandable material in the vertical frame, and also simplifying assembly.

[0054] The communication hole is a wall hole formed in the visible wall of the vertical frame, and the heat-expandable material may be provided at a position facing the wall hole on the inner circumferential visible surface of the vertical frame.

[0055] The communication hole is a lower opening in the hollow portion of the vertical frame provided in the vertical frame, and the heat-expandable material may be provided below the same height as the lower opening on the inner circumferential surface of the vertical frame.

[0056] The frame is vertically oriented, the communication hole is a fastener insertion hole through which a fastener for fixing the lower frame in the frame passes relative to the vertical frame, and the heat-expandable material may be provided at a position facing the fastener insertion hole on the inner circumferential surface of the vertical frame.

[0057] Ventilation holes may be provided in the inner circumferential wall of the hollow portion of the vertical frame, and a heat-expanding material may be provided on the inner circumferential surface of the lower frame of the frame body at a location that blocks the ventilation holes when heated.

[0058] In the frame body, a lower connecting hole is formed in the inner circumferential wall of the lower frame, connecting the inner and outer sides of the frame body, and a heat-expanding material may be provided in the inner circumferential wall at a location that closes the lower connecting hole when heated.

[0059] A panel is held on the inner circumference of the frame, and the vertical and bottom frames of the frame may each have a frame that supports the edge of the panel, with the vertical frame being the dominant one. [Explanation of symbols]

[0060] 10 Joinery, 12 Frame, 14 Shoji screen, 16 Bottom frame, 20 Vertical frame, 22 Frame body, 26 Bottom frame, 30 Vertical frame, 32 Metal bottom frame, 40 Metal vertical frame, 51 Hole section, 51g, 51h Primary hole in bottom frame, 51i Secondary hole in bottom frame, 52 Metal bottom frame, 54, 54A, 54B Trim, 55 Panel holding space, 57 Metal vertical frame, 59j Bottom opening, 59 Hole section in vertical frame, 59g Hole, 80 Heat-expandable material, 82a First wall hole, 82b Second wall hole, 84 Hollow wall hole, 86 Heat-expandable material

Claims

1. A door or window frame in which the frame body is positioned on the inner circumference side of the frame, In the frame, the vertical frame has a communication hole formed that connects the inner circumference and the outer circumference of the frame. The vertical frame of the aforementioned frame is provided with a heat-expanding material at a location that closes the communication hole when heated. A type of joinery characterized by its features.

2. The aforementioned communication hole is a wall hole formed in the visible wall of the vertical frame, The heat-expandable material is provided at a position on the inner circumferential surface of the vertical frame facing the wall hole. The joinery according to feature 1.

3. The aforementioned communication hole is a lower opening in the hollow portion of the vertical frame provided in the vertical frame, The heat-expandable material is provided below the lower opening on the inner circumferential surface of the vertical frame, including the same height as the lower opening. The joinery according to feature 1.

4. The aforementioned frame is vertically dominant, The aforementioned communication hole is a fastener insertion hole through which a fastener for fixing the lower frame in the frame body to the vertical frame passes. The heat-expandable material is provided at a position facing the fastener insertion hole on the inner circumferential surface of the vertical frame. The joinery according to feature 1.

5. Ventilation holes are provided in the inner circumferential wall of the hollow portion of the vertical frame. In the frame body, a heat-expanding material is provided on the inner circumferential surface of the lower frame at a location that blocks the ventilation holes when heated. The joinery according to feature 1.

6. In the lower frame of the frame, a lower communication hole is formed in the inner circumferential wall that connects the inner and outer sides of the frame. The inner circumferential wall is provided with a heat-expanding material at a location that closes the lower communication hole when heated. The joinery according to feature 1.

7. A panel is held on the inner circumference side of the frame, In the aforementioned frame, the vertical frame and the bottom frame are each provided with a frame that supports the edge of the panel, with the frame being oriented vertically. The joinery according to feature 1.

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