Building materials

Abstract

To provide a fitting whose fire-retardant property can be enhanced.SOLUTION: A door 1 includes a door frame 2 and a door body 3 disposed in the door frame 2 in an opening / closing manner. The door frame 2 is configured by framing an upper frame, a lower frame 22, a door-end vertical frame 23, and a hanging-end vertical frame 24. The door body 3 is configured by framing an upper rail, a lower rail 32, a door-end vertical frame 33, and a hanging-end vertical frame 34 in the vertical direction. The lower end portion of the hanging-end vertical frame 34 is provided with a first thermally expansive refractory material 11 for closing its hollow portion, and the lower frame 22 has a lower frame body portion 221 opposed to the lower end portion of the hanging-end vertical frame 34 in the Y-axis direction and a door body receiving portion erected from the lower frame body portion 221 and arranged on the indoor side with respect to the hanging-end vertical frame 34. The face of the door body receiving portion is provided with a second thermally expansive refractory material 12 for closing a space between the lower end portion of the hanging-end vertical frame 34 and the lower frame 22. A third thermally expansive refractory material 13 is provided on a surface of the lower frame 32 opposed to the lower frame body portion 221 in the vertical direction.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a fitting in which a shoji screen is arranged within a frame so that it can be opened and closed. [Background technology]

[0002] A known fixture is a back door that includes a frame, an outer frame placed within the frame, and an inner unit shoji screen placed within the outer frame (see Patent Document 1). The outer frame is made up of outer frame members with a hollow section along the longitudinal direction that are assembled vertically from top to bottom and left to right. The lower end of the left and right outer vertical frames (vertical frames) and the outer frame members (lower frames) located below them are opposed in the vertical direction by the lower part of the frame (lower frame). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-202000 Summary of the Invention [Problem to be solved by the invention]

[0004] In the door described in Patent Document 1, the outer frame is assembled vertically, so the lower end of the vertical frame is positioned vertically opposite the bottom frame. Therefore, in the event of a fire, the lower end of the vertical frame, which has a hollow portion, is likely to be melted by flames entering, making it difficult to improve fire resistance by sealing the gap between the corner of the outer frame where the lower end is located and the frame body.

[0005] An object of the present invention is to provide a building material that can improve fire resistance. [Means for solving the problem]

[0006] The building fixture of the present invention comprises a frame body and a shoji screen that is arranged within the frame body so that it can be opened and closed, the frame body being formed by framing an upper frame, a lower frame and left and right vertical frames, the shoji screen being formed by assembling an upper stile, a lower stile and left and right vertical frames in a vertical order, at least one of the left and right vertical frames having a hollow portion, and a first thermally expandable fire-resistant material that seals the hollow portion at the lower end of one of the vertical frames, the lower frame having a lower frame main body portion that faces the lower end of one of the vertical frames in the vertical direction, and a shoji holder portion that rises from the lower frame main body portion and is arranged on one side of the one of the vertical frames in the forward direction, the visible surface of the shoji holder portion being provided with a second thermally expandable fire-resistant material that seals the gap between the lower end of one of the vertical frames and the lower frame, and a third thermally expandable fire-resistant material being provided on the surface of the lower frame that faces the lower frame main body portion in the vertical direction. [Effects of the Invention]

[0007] According to the present invention, a fitting that can improve fire resistance can be provided. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external view showing a door according to an embodiment of the present invention; [Figure 2] FIG. 2 is a vertical cross-sectional view showing the door according to the embodiment. [Figure 3] FIG. 3 is a cross-sectional view showing the door according to the embodiment. [Figure 4] FIG. 2 is an explanatory diagram showing a main part of a door according to the embodiment. [Figure 5] FIG. 2 is an explanatory diagram showing the hanging vertical frame and bottom frame of the door according to the embodiment. [Figure 6] FIG. 2 is an explanatory diagram showing the bottom stile and bottom frame of the door according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] [Configuration of this embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 to 3, a terrace door 1 as a fixture according to this embodiment is configured as an outward-opening door, comprising a door frame 2 (frame body) and a door body 3 (shoji screen) arranged in the door frame 2 so as to be able to open and close. The door frame 2 is configured by framing a top frame 21, a bottom frame 22, a door end vertical frame 23, and a hanging vertical frame 24 (left and right vertical frames) in a vertical alignment. The door body 3 is configured by framing a top stile 31, a bottom stile 32, a door end vertical frame 33, a hanging vertical frame 34 (left and right vertical frames), and a surface material 35 such as a glass panel in a vertical alignment. A first thermally expansive fire-resistant material 11 is provided at the lower end of the hanging vertical frame 34, a second thermally expansive fire-resistant material 12 is provided at a door body receiving portion 222 (described later) of the bottom frame 22, and a third thermally expansive fire-resistant material 13 is provided on the underside of the bottom stile 32. In the following description, the left-right direction of the door 1 is the X-axis direction, the up-down direction of the door 1 is the Y-axis direction, and the front direction of the door 1 is the Z-axis direction. The X, Y, and Z-axis directions are perpendicular to each other.

[0010] As shown in Figures 2 and 3, the top frame 21, the door-end vertical frame 23, and the hanging vertical frame 24 each have a metal frame body 201 with a hollow cross section, and a resin door body support member 202 (shoji support member) that extends from the room-side portion of the frame body 201 toward the inner periphery of the door frame 2. The top frame 21, the door-end vertical frame 23, and the hanging vertical frame 24 are appropriately provided with thermally expandable fireproof material that seals the gaps between them and the top stile 31, the door-end vertical frame 33, and the hanging vertical frame 34. Each frame body 201 is formed as a single unit from an aluminum extrusion. Each door body support member 202 is formed as a single unit from a resin extrusion and engages with the corresponding frame body 201. The door-end vertical frame 23 is provided with accessories such as a lock receiver. Upper hinges 51, 52 and a lower hinge 53 positioned below the upper hinges 51, 52 are attached to the hanging vertical frame 24 by screws, and the hanging vertical frame 24 is connected to the hanging vertical stile 34 via the upper hinges 51, 52 and the lower hinge 53. As shown in Figures 2, 5 and 6, the lower frame 22 is made of metal (in this embodiment, it is made of extruded aluminum) and has a lower frame main body 221 with a hollow frame cross section and a door body receiving portion 222 (shoji receiving portion) that rises upward from the lower frame main body 221, and is positioned on the indoor side in the Z-axis direction relative to the lower end of the lower stile 32, the door tip vertical stile 33 and the lower end of the hanging vertical stile 34. The lower frame main body 221 has a lower frame exterior viewing surface 223, a lower frame interior viewing surface 224, a lower frame inner periphery viewing surface 225 and a lower frame outer periphery viewing surface 226, and the lower frame inner periphery viewing surface 225 extends further toward the interior of the room than the lower frame interior viewing surface 224. The door body receiving portion 222 has a receiving exterior visible surface portion 227 that rises from the indoor end of the lower frame inner peripheral visible surface portion 225, a receiving interior visible surface portion 228 that is positioned on the indoor side of the receiving exterior visible surface portion 227, and a receiving inner peripheral visible surface portion 229 and a receiving outer peripheral visible surface portion 230 that are continuous with the receiving exterior visible surface portion 227 and the receiving interior visible surface portion 228, and the receiving inner peripheral visible surface portion 229 is formed in a shape that can engage with a resin cover 231. The door body receiving portion 222 is covered from the inner peripheral side by the resin cover 231 that engages with the receiving inner peripheral visible surface portion 229. The exterior-facing receiving surface 227 has an airtight material mounting groove 233 into which an airtight material 232 is mounted, the airtight material 232 contacting the interior surface 1B of the door body 3 when the door 1 is closed, and a fireproof material mounting groove 234 formed below the airtight material mounting groove 233 and into which the second thermally expandable fireproof material 12 is mounted. The airtight material mounting groove 233 and the fireproof material mounting groove 234 extend in the X-axis direction over the entire length of the door body receiving portion 222 and are each open to the exterior side. The upper and lower ends of the fireproof material mounting groove 234 are each concave, preventing the second thermally expandable fireproof material 12 from falling out of the opening of the fireproof material mounting groove 234.

[0011] As shown in Figures 2 and 3, the upper frame 31, the door end frame 33, and the hanging frame 34 have metal frame members 311, 331, and 341 on the exterior side and plastic frame members 312, 332, and 342 on the interior side of the metal frame members 311, 331, and 341. The metal frame members 311, 331, and 341 are each integrally formed from an aluminum extrusion. The plastic frame members 312, 332, and 342 are each integrally formed from a plastic extrusion and are engaged with the metal frame members 311, 331, and 341. The metal frame members 311, 331, and 341 are formed in a hollow frame-like cross section, with hollow portions 311A, 331A, and 341A formed along their entire lengths. 3 and 5, the metal frame 311 of the hanging frame 34 has a frame exterior facing surface 345 (exterior facing surface), a frame interior facing surface 346 (interior facing surface), a frame interior facing surface 347 (inner facing surface), and a frame exterior facing surface 348 (outer facing surface), and upper hinges 51, 52 and lower hinge 53 are attached to the frame exterior facing surface 348 with screws. In addition, reinforcing member 40 that reinforces the metal frame 341 is arranged in the hollow portion 341A defined by the frame interior facing surface 346, the frame interior facing surface 347, and the frame exterior facing surface 348. Here, the reinforcing member 40 has an L-shaped cross section, including a reinforcing sight piece 41 along the stile exterior sight surface 345 and a reinforcing sight piece 42 along the stile interior sight surface 347. A first thermal expansion fire-resistant material 11 is attached to the lower end of the inner surface of the reinforcing sight piece 41, which faces the stile interior sight surface 346 in the Z-axis direction. In this embodiment, the reinforcing member 40 is made of steel, but it may be made of any material with higher rigidity than the hanging stile 34, such as stainless steel. Resin caps 45 are attached to the upper and lower ends of the hanging stile 34. The resin caps 45 seal the small ends of the upper and lower ends of the hanging stile 34. As shown in FIG. 2, the lower frame 32 has a metal frame 321 on the exterior side and a resin frame 322 on the interior side of the metal frame 321. The metal frame 321 is integrally formed from an aluminum extrusion, and the resin frame 322 is also integrally formed from a resin extrusion. As shown in FIGS. 2 and 6, the metal frame 321 has a hollow cross section, with a hollow portion 321A formed along its entire length and including an exterior facing surface 323, an interior facing surface 324, an inner facing surface 325, and an outer facing surface 326. A reinforcing member 6 is arranged in the hollow portion 321A to reinforce the metal frame 321. A thermally expandable fire-resistant material 7 is appropriately provided within the reinforcing member 6. A third thermally expandable fire-resistant material 13 is attached to the underside of the lower frame outer periphery visible surface portion 326.

[0012] The first thermally expandable fire-resistant material 11 is formed in a rectangular sheet shape and is arranged to extend downward from a height position covering the lower hinge 53 to the position of the lower end of the reinforcing piece 41. For this reason, in this embodiment, the first thermally expandable fire-resistant material 11 is arranged only at the lower end of the hanging vertical frame 34. The second thermally expandable fire-resistant material 12 is formed in a rectangular sheet shape extending in the X-axis direction over the entire length of the bottom frame 22, and is slidably inserted into the fire-resistant material mounting groove 234 of the bottom frame 22 before the door frame 2 is framed. Therefore, the second thermally expandable fire-resistant material 12 is provided on the visible surface on the exterior side of the door body receiving portion 222, with at least a part of the upper edge 121 being positioned opposite the lower ends of the front stile 33 and the hanging stile 34 in the Z-axis direction, and the portion below the upper edge 121 being positioned facing the space between the bottom frame 22 and the front stile 33 / hanging stile 34 and the bottom frame 22. The third thermally expandable fire-resistant material 13 is formed in a rectangular sheet shape extending in the X-axis direction along the lower frame 32, and is attached to the lower surface of the lower frame outer periphery projection surface 326 as described above, so that it faces in the Y-axis direction the upper surface of the lower frame main body 221, i.e., the upper surface of the lower frame inner periphery projection surface 225. In this embodiment, the third thermally expandable fire-resistant material 13 is disposed on both ends of the lower frame 32 in the X-axis direction, but may be attached along the entire length of the lower frame 32 in the X-axis direction.

[0013] Hereinafter, thermal expansion of the first thermally expandable fire-resistant material 11, the second thermally expandable fire-resistant material 12, and the third thermally expandable fire-resistant material 13 of the door 1 according to this embodiment in the event of an outdoor fire will be described. In the event of an outdoor fire, when the first thermally expandable fire-resistant material 11 reaches its thermal expansion temperature, it thermally expands toward the indoor side, sealing off the lower end of the hanging vertical frame 34 at the hollow portion 341A. Here, the resin cap 45 may melt and come off the metal frame material 341 of the hanging vertical frame 34, but the first thermally expandable fire-resistant material 11 also thermally expands downward to a certain extent, sealing off the gap between the hanging vertical frame 34 and the lower frame main body 221. Furthermore, when the third thermally expandable fire-resistant material 13 reaches its thermal expansion temperature, it thermally expands downward, sealing off the gap between the lower frame 32 and the lower frame 22, and can also connect with the thermally expanding first thermally expandable fire-resistant material 11, indirectly improving the shielding between the hanging vertical frame 34 and the lower frame 22. Following the thermal expansion of the first thermally expandable fireproof material 11 and the third thermally expandable fireproof material, the second thermally expandable fireproof material 12 thermally expands toward the outside when it reaches its thermal expansion temperature, hanging over the lower ends of the door end stile 33 and the hanging base stile 34 and sealing the gap between these lower ends and the door body receiving part 222, and also sealing the gap between the bottom stile 32, the door end stile 33, the hanging base stile 34 and the bottom frame main body part 221. In addition, the second thermally expandable fireproof material 12 is also connected in the Z-axis direction to the thermally expanded third thermally expandable fireproof material 13, thereby improving the shielding state between the bottom stile 32 and the bottom frame 22. In this way, the space between the lower part of the door body 3 and the lower frame 22 is sealed by the first thermally expandable fire-resistant material 11, the second thermally expandable fire-resistant material 12 and the third thermally expandable fire-resistant material 13.

[0014] [Variations] In the above embodiment, the first thermally expandable fire-resistant material 11 is provided on the hanging vertical frame 34, but this is not limited thereto, and the first thermally expandable fire-resistant material 11 may also be provided on the door end vertical frame 33. In the above embodiment, the first thermally expandable fire-resistant material 11 is disposed extending downward from a height position covering the lower hinge 53 attached to the lower part of the hanging vertical frame 34, but is not limited to this, and may be disposed extending downward from a position lower than the above-mentioned height position. Also, in the above embodiment, the first thermally expandable fire-resistant material 11 is provided only in the portion below the height position covering the above-mentioned lower hinge 53, but may be provided over the entire length of the hanging vertical frame 34. In the above embodiment, the first thermal expansion fire-resistant material 11 is provided on the reinforcing visible piece portion 41, but this is not limited thereto and it may be provided in a portion that can seal the lower end of the hanging vertical frame 34 and the space between the hanging vertical frame and the lower frame main body portion 221. For example, if the configuration of the reinforcing material 40 is omitted, it may be provided on the vertical frame exterior visible surface portion 345. In the above embodiment, a terrace door 1 was described as a fixture, but the present invention is not limited to this and may be applied to any fixture that swings open and closes with a frame, such that a sliding screen opens and closes to the outside or inside of the room.

[0015] [Summary of the invention] The building fixture of the present invention comprises a frame body and a shoji screen that is arranged within the frame body so that it can be opened and closed, the frame body being formed by framing an upper frame, a lower frame and left and right vertical frames, the shoji screen being formed by assembling an upper stile, a lower stile and left and right vertical frames in a vertical order, at least one of the left and right vertical frames having a hollow portion, and a first thermally expandable fire-resistant material that seals the hollow portion at the lower end of one of the vertical frames, the lower frame having a lower frame main body portion that faces the lower end of one of the vertical frames in the vertical direction, and a shoji holder portion that rises from the lower frame main body portion and is arranged on one side of the one of the vertical frames in the forward direction, the visible surface of the shoji holder portion being provided with a second thermally expandable fire-resistant material that seals the gap between the lower end of one of the vertical frames and the lower frame, and a third thermally expandable fire-resistant material being provided on the surface of the lower frame that faces the lower frame main body portion in the vertical direction. According to the fittings of the present invention, in the event of a fire, the first thermally expandable fire-resistant material thermally expands to seal the hollow at the lower end of one of the vertical stiles, thereby preventing flames from penetrating the hollow from the lower end of the vertical stile. Furthermore, the second thermally expandable fire-resistant material attached to the facing surface of the shoji screen holder thermally expands to seal the gap between the lower end of one of the vertical stiles and the bottom frame, thereby preventing flames from penetrating between the one of the vertical stiles and the bottom frame. Furthermore, the thermal expansion of the third thermally expandable fire-resistant material seals the gap between the bottom frame and the bottom frame body, while also connecting with the thermally expanding second thermally expandable fire-resistant material at the lower end of one of the vertical stiles. In this way, fire resistance can be improved by utilizing the thermal expansion of both the first and second thermally expandable fire-resistant materials.

[0016] In the building fixture of the present invention, the second thermally expandable fire-resistant material may be arranged facing the space between the one vertical frame and the lower frame in the prospective direction. With this configuration, in the event of a fire, the second thermally expandable fire-resistant material arranged as described above thermally expands toward the space between the lower end of one of the vertical frames and the lower frame, thereby more effectively sealing the space between the lower end of one of the vertical frames and the lower frame.

[0017] In the building fixture of the present invention, the one of the vertical frames is a hanging vertical frame whose upper and lower parts are connected to the vertical frame via hinges, and the hanging vertical frame has an exterior facing surface, an interior facing surface, an inner peripheral facing surface, and an outer peripheral facing surface, and the hinge is attached to the outer peripheral facing surface, and the first thermally expandable fire-resistant material may be arranged to extend downward from a height position covering the hinge attached to the lower part. With this configuration, in the event of a fire, the thermal expansion of the first thermally expandable fire-resistant material arranged as described above can block the lower end of the hanging vertical frame, while also covering the hinge mounting portion at the bottom of one of the vertical frames, thereby further improving fire resistance.

[0018] In the fitting of the present invention, a reinforcing material having a reinforcing piece along the exterior visible surface portion and a reinforcing piece along the interior visible surface portion is arranged in the hollow portion of the hanging vertical frame, The first thermally expandable fire-resistant material may be provided on the reinforcing piece portion. According to this configuration, the reinforcing member has a reinforcing projection portion along the exterior-facing surface of the hanging stile and a reinforcing projection portion along the interior-facing surface, so that the reinforcing member does not interfere with the mounting portion of the hinge attached to the lower part of the exterior-facing surface of one of the stiles. Also, by providing the first thermally expansive fire-resistant material on the reinforcing projection portion, installation is easier than, for example, providing the first thermally expansive fire-resistant material on the exterior-facing surface of the stile. Furthermore, compared to, for example, providing the first thermally expansive fire-resistant material on the reinforcing projection portion, in the event of an outdoor fire, the first thermally expansive fire-resistant material can be thermally expanded more quickly by causing an increase in temperature. [Explanation of symbols]

[0019] 1...door (fitting), 11...first thermal expansion fire-resistant material, 12...second thermal expansion fire-resistant material, 121...upper edge, 13...third thermal expansion fire-resistant material, 1B...indoor surface, 2...door frame (frame body), 201...frame body, 202...door body receiving member, 21...upper frame, 22...lower frame, 221...lower frame body part, 222...door body receiving part (shoji receiving part), 223...lower frame exterior visible surface part, 224...lower frame interior visible surface part , 225... lower frame inner peripheral projection surface portion, 226... lower frame outer peripheral projection surface portion, 227... receiving room exterior projection surface portion, 228... receiving room interior projection surface portion, 229... receiving inner peripheral projection surface portion, 23... door end vertical frame (vertical frame), 230... receiving outer peripheral projection surface portion, 231... resin cover, 232... airtight material, 233... airtight material installation groove portion, 234... fireproof material installation groove portion, 24... hanging vertical frame (vertical frame), 3... door body (Shoji), 31...Upper frame, 311,321,331,341...Metal frame material, 311A,321A,331A,341A...Hollow part, 312,322,332,342...Resin frame material, 32...Lower stile, 323...Lower stile interior exterior facing surface, 324...Lower stile interior facing surface, 325...Lower stile inner periphery projected surface, 326...Lower stile outer periphery projected surface, 33...Door stile (vertical stile), 34...Hanging Original vertical frame (vertical frame), 345...vertical frame exterior visible surface portion, 346...vertical frame interior visible surface portion, 347...vertical frame inner peripheral visible surface portion, 348...vertical frame outer peripheral visible surface portion, 35...face material, 40,6...reinforcing material, 41...reinforcing visible piece portion, 42...reinforcing visible piece portion, 45...resin cap, 51...upper hinge (hinge), 52...upper hinge (hinge), 53...lower hinge (hinge), 7...thermal expansion fire-resistant material.

Claims

1. A frame body and a shoji screen disposed within the frame body so as to be able to be opened and closed, The frame body is formed by an upper frame, a lower frame, and left and right vertical frames, The shoji screen is made up of an upper frame, a lower frame, and left and right vertical frames joined vertically. One of the left and right vertical frames is a hanging vertical frame having a hollow portion, The hanging vertical frame has an exterior facing surface, an interior facing surface, an inner periphery facing surface, and an outer periphery facing surface, and the upper and lower parts are connected to the vertical frame via hinges on the outer periphery facing surface, A reinforcing material having a reinforcing piece along the exterior visible surface portion and a reinforcing piece along the inner periphery visible surface portion is arranged in the hollow portion of the hanging vertical frame, The reinforcing piece portion is provided with a first thermally expandable fireproof material that is disposed only at the lower end of the hanging vertical frame and closes the hollow portion, The first thermally expandable fire-resistant material is disposed to extend downward from a height position covering the hinge attached to the lower portion, The lower frame has a lower frame main body portion that faces the lower end of the hanging vertical frame in the vertical direction, and a shoji receiving portion that stands up from the lower frame main body portion and is arranged on one side of the one vertical frame in the projection direction, A second thermal expansion fireproof material is provided on the visible surface of the shoji receiving portion to seal the gap between the lower end of the one vertical stile and the bottom frame, A third thermal expansion fireproof material is provided on a surface of the lower frame that faces the lower frame main body in the vertical direction, The first thermally expandable refractory material, the second thermally expandable refractory material, and the third thermally expandable refractory material are arranged to be connected to each other in a thermally expanded state. A fixture characterized by:

2. In the fitting according to claim 1, The second thermal expansion refractory material is arranged facing the space between the one vertical frame and the lower frame in the prospective direction. A fixture characterized by:

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