JP2012154161A - Sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sash capable of preventing indoor dew condensation and inhibiting opening of a gap between an outdoor sill member and an indoor sill member which causes deformation-induced collapse of the outdoor sill member toward the outdoor side during fire.SOLUTION: A sill 5 of a sash frame comprises an outdoor sill member 5a having an outer rail 9, an indoor sill member 5b having an inner rail 10, a resin insulator 7 which connects the outdoor sill member 5a and the indoor sill member 5b, and a connection member 60 which is inserted in a hole 62 or a cutout formed in the inner rail 10 and extends over the outdoor sill member 5a and the indoor sill member 5b.

Description

  The present invention relates to a sash having improved fireproof performance.

  Conventionally, in order to prevent condensation on the indoor side of the lower frame, the lower frame is divided into an outdoor lower frame material and an indoor lower frame material, and the outdoor lower frame material and the indoor lower frame material are separated. Some are connected by a heat insulating material such as urethane resin. In a sash using such a heat-insulating sash frame, when a fire breaks out and the heat insulation of the lower frame starts to burn out, the space between the outdoor lower frame material and the indoor lower frame material opens, and the outdoor lower frame Since the material is deformed so as to fall to the outside, and the outer rail of the lower frame falls down while falling to the outside of the room, the external shoji is easily removed.

  In view of the circumstances described above, the present invention prevents the condensation on the indoor side and opens the space between the outdoor lower frame material and the indoor lower frame material in the event of a fire so that the outdoor lower frame material falls to the outdoor side. It aims at providing the sash which can prevent trying to deform | transform.

  In order to achieve the above object, the sash according to the invention described in claim 1 is such that the lower frame of the sash frame includes an outdoor lower frame member having an outer rail, an indoor lower frame member having an inner rail, and an outdoor lower frame. It is provided with a resin heat insulating material that connects the frame material and the indoor lower frame material, and is provided across the outdoor lower frame material and the indoor lower frame material by being inserted into a hole or notch formed in the inner rail. It is characterized by having a connecting material.

  The sash according to the invention described in claim 2 is characterized in that, in addition to the configuration of the invention described in claim 1, the connecting member has a hooking portion wider than the hole or notch of the inner rail on the indoor side of the inner rail. And The hook portion may be provided integrally with the connecting material, or may be formed separately from the connecting material and fixed to the connecting material with screws or the like.

  A sash according to a third aspect of the present invention is characterized in that, in addition to the configuration of the first or second aspect of the present invention, a sash is provided between the inner and outer rails and has a reinforcing member that receives a load of a shoji during a fire.

  The sash according to the first aspect of the present invention can prevent dew condensation on the indoor side due to the configuration in which the outdoor lower frame material and the indoor lower frame material are connected by a resin heat insulating material. Even if it starts to burn out, it has a connecting material that is inserted into a hole or notch formed in the inner rail and straddles the outdoor lower frame material and the indoor lower frame material. It is possible to surely prevent the outdoor lower frame member from opening and the indoor lower frame member from being deformed so as to fall to the outdoor side. As a result, it is possible to prevent the fallout from falling off in the event of a fire. The inner rail is originally formed with holes and notches for draining the water accumulated on the indoor side of the inner rails to the outdoor side. By using these holes and notches, new processing can be performed on the lower frame. The connecting material can be easily installed without the need to attach the connecting material to the lower frame of the existing sash.

  In the sash according to the second aspect of the present invention, the connecting member has a catching portion wider than the hole or notch of the inner rail on the outer side of the inner rail, so that the inner rail can be pulled even if the connecting member is pulled outward. The bottom frame can be reliably prevented from being deformed without coming out of the hole or notch.

  The sash according to the invention described in claim 3 has a reinforcing material that receives the load of the external shoji between the inner and outer rails in the event of a fire, so that the connecting material prevents the lower frame from being deformed, The sliding door can be more reliably prevented from falling off.

It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is an outdoor side front view which shows one Embodiment of the sash of this invention. It is a top view of the lower frame of the sash. It is a longitudinal cross-sectional view of the sash. It is a cross-sectional view of the sash. It is a figure which expands and shows the drainage part of a lower frame, Comprising: (a) is a top view, (b) is an outdoor side front view, (c) is CC sectional drawing. It is a disassembled perspective view which shows the drain hole of a lower frame, the refractory material attachment member attached to a drain hole, and a refractory material. It is AA sectional drawing of FIG. 3 at the time of a fire. It is a figure which shows the other example of the attachment method of the refractory material for plugging up the drain hole of a lower frame, Comprising: (a) is an outdoor front view, (b) is DD sectional drawing. It is a longitudinal cross-sectional view which shows another example of the attachment method of the refractory material for plugging up the drain hole of a lower frame, Comprising: (a) shows the state at the time of normal, (b) shows the state at the time of a fire. It is a top view of the lower frame which shows the example in the case of providing a degassing part in the reinforcing material of a lower frame. It is EE sectional drawing of FIG. It is a top view of the lower frame which shows embodiment which connected the outdoor lower frame material and the indoor lower frame material with the connection material inserted in the drain hole of the inner rail. It is FF sectional drawing of FIG. It is a longitudinal cross-sectional view of the lower frame which shows the other example of the attachment method of a connection material. It is a top view of the lower frame which shows another example of a connection material. It is GG sectional drawing of FIG. It is a longitudinal cross-sectional view of the lower frame part which shows the other example of a reinforcing material. It is a longitudinal cross-sectional view of the lower frame part which shows the state at the time of a fire at the time of using the reinforcing material of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1-6 show one embodiment of the sash of the present invention. The sash includes a sash frame 1 attached to a housing opening, and a shroud 2 and an inner pouch 3 that are accommodated in the sash frame 1 so as to be freely opened and closed.

The sash frame 1 is constituted by an upper frame 4, a lower frame 5, and left and right collar frames 6, 6. As shown in FIG. 1, the lower frame 5 has a structure in which an outdoor lower frame material 5a formed of an extruded shape of an aluminum alloy and an indoor lower frame material 5b are connected by a heat insulating material 7 made of urethane resin. ing. A resin angle 8 is attached to the upper part of the indoor side lower frame member 5b. In this way, the lower frame 5 prevents the indoor dew condensation by the heat insulating material 7 and the resin angle 8. The upper surface of the lower frame 5 is formed in a substantially flat shape, and an outer rail 9 for guiding the outer shoji 2 and an inner rail 10 for guiding the inner shroud 3 are formed to protrude upward at the same height.
As shown in FIGS. 1, 4, and 7, the upper surface of the lower frame 5 is provided with a drain hole 11 at a position on the indoor side of the outer rail 9 at the longitudinal end of the lower frame 5. Rain water and dew condensation water that has entered between 10 are guided through the drain hole 11 into the hollow portion 12 of the outdoor lower frame member 5a. A drainage hole 13 is provided at the lower part of the outdoor wall of the lower frame 5, and the water in the hollow part 12 is drained to the outside through the drainage hole 13. A resin drain valve 14 is attached to the drain hole 13 to prevent rain wind from blowing through the drain hole 13. The drainage valve 14 has a case 14a fitted and held in the drainage hole 13, and a valve body 14b that is pivotally supported by the case 14a and rotates outwardly from the room.

As shown in FIG. 1, in the position adjacent to the drain hole 11 and the drain hole 13 of the lower frame 5, a refractory material 15 that expands and expands when heated and closes the drain hole 11 and the drain hole 13, respectively. 16 are provided. Such heat-foaming refractory materials 15 and 16 can be appropriately selected from commercially available products, and for example, trade name “Fibro” manufactured by Sekisui Chemical Co., Ltd. can be used. This is an organic refractory material that utilizes plastic technology. In normal conditions, it is a flexible thin sheet. When heated to 200 ° C or higher, it foams and expands 5 to 40 times in the thickness direction. Form a layer. It does not disappear in the event of a fire, and no harmful gases are generated. The fibro has an adhesive layer with release paper on one side and can be easily attached by peeling off the release paper.
In order to install this refractory material 15, a refractory material mounting member 17 formed by bending a thin stainless steel plate is fitted into the drain hole 11 from above as shown in FIGS. The refractory material mounting member 17 is divided into an outdoor side and an indoor side, and each refractory material mounting member 17 is inserted into the drain hole 11 and placed in the hollow portion 12 in a U-shaped insertion portion 17a. And a locking piece 17b projecting laterally from the upper edge of the insertion portion 17a, and the refractory material 15 is previously attached to the inner surface in the longitudinal direction of the insertion portion 17a. An refractory material mounting member 18 having an L-shaped cross section is attached with a screw 19 at a position adjacent to the drain hole 13 in the hollow portion 12, and the refractory material 16 is attached to the lower surface of the refractory material mounting member 18.

  In the event of a fire, as shown in FIG. 9, the refractory materials 15 and 15 attached to the inner surface of the refractory material mounting member 17 attached to the drain hole 11 are foamed and expanded in the thickness direction, and in the indoor and outdoor directions. The drain hole 11 is closed by pressing. The drain valve 14 attached to the drain hole 13 melts and disappears due to the heat of the fire, but is attached to the lower surface of the refractory material mounting member 18 attached adjacently above the drain hole 13 in the hollow portion 12. The material 16 foams and expands in the thickness direction, and is pressed against the bottom surface of the hollow portion 12 to close the drain hole 13. In this way, when the water drainage hole 11 and the drainage hole 13 of the lower frame 5 are closed by the expanded refractory materials 15 and 16 in the event of a fire, hot air, smoke, etc. from the drainage path of the lower frame 5 or Intrusion from the room to the outside can be prevented, and the fire prevention performance can be improved. Since the refractory material 15 for closing the drainage hole can be attached to the drainage hole 11 from the outside of the hollow portion 12 after being attached to the refractory material mounting member 17, it can be easily attached to the lower frame 5 of the existing sash frame. Can be installed on. Since the refractory materials 15 and 16 are in the form of a thin sheet in a normal state and are arranged in parallel to the prospective direction of the drain hole 11 and the drain hole 13, the drainage performance of the lower frame 5 is affected. Absent.

  FIG. 10 shows another example of how to attach the refractory material 16 for closing the drain hole. In this example, a refractory material mounting member 18 having a U-shaped cross section is mounted on the outdoor surface of the lower frame 5 with a screw 19 above the drain hole 13, and a sheet-like refractory material is mounted on the lower surface of the refractory material mounting member 18. 16 is pasted. The openings on the outdoor side and the side surface of the refractory mounting member 18 are closed by attaching caps 20a and 20b. In the event of a fire, the refractory material 16 foams and expands in the thickness direction, and presses against the upper surface of the water slice 21 of the lower frame 5 to close the drain hole 13 from the outside. According to this embodiment, the refractory material 16 for closing the drain hole can also be retrofitted to the lower frame 5 of the existing sash frame.

  FIG. 11 shows still another example of how to attach the refractory material 16 for closing the drain hole. In this example, a refractory material mounting member 18 having a crank-shaped cross section is attached to the outdoor surface of the lower frame 5 with a screw 19 from the outdoor side above the drain hole 13, and is adjacent to the outdoor side of the drain hole 13 with a gap. A sheet-like refractory material 16 is attached to the inner surface of the refractory material mounting member 18. In the event of a fire, the refractory material 16 foams and expands in the thickness direction, and presses against the outdoor surface of the lower frame 5 to close the drain hole 13 from the outside. Also according to this embodiment, the refractory material 16 for closing the drain hole can be easily retrofitted to the lower frame 5 of the existing sash frame.

  The material of the refractory attachment members 17 and 18 is not particularly limited, but a material that does not easily melt or deform in the event of a fire, or a metal such as stainless steel or iron is preferable. The refractory materials 15 and 16 are not limited to the above-mentioned “Fibro”, and any refractory material having a property of expanding and expanding by heat can be used.

  As shown in FIG. 1, a non-combustible sheet 22 is attached to the upper surface of the lower frame 5 between the inner and outer rails 9 and 10. The incombustible sheet 22 is provided over almost the entire length of the lower frame 5 in the longitudinal direction, and a hole is provided above the drain hole 11. The incombustible sheet 22 is a sheet-like incombustible material made of glass fiber, ceramic fiber, etc., and protects the upper surface of the lower frame 5 and the heat insulating material 7 from flames in the event of a fire, and the heat insulating material 7 of the lower frame 5 melts and burns By containing the combustible gas generated by this, it works to prevent the spread of fire. As the non-combustible sheet 22, for example, trade name “Super Wool Paper” manufactured by Nikka Chemical Ceramics Co., Ltd. can be used. This incombustible sheet 22 is a flexible thin sheet made of fibers of SiO2, CaO, MgO, and does not burn even at a high temperature of 1000 ° C. or higher, is not easily torn, has excellent thermal shock and heat insulation properties, and does not generate harmful gases. Have. A flame-retardant double-sided tape is used for attaching the non-combustible sheet 22 to the upper surface of the lower frame 5.

  As shown in FIGS. 1 and 4, a stainless steel reinforcing material 23 is provided in the region of the left half of the lower frame 5 between the inner and outer rails 9 and 10 when viewed from the indoor side where the closed outer shoji 2 is located. It is provided. The reinforcing member 23 is provided at the upper edge of the lower frame upper surface contact portion 23a that contacts the upper surface of the lower frame 5, the outer rail reinforcement portion 23b that rises along the indoor side surface of the outer rail 9, and the outer rail reinforcement portion 23b. The outer rail 9 has an outer rail receiving portion 23c that receives the upper portion of the outer rail 9 when the outer rail 9 is about to be lowered, and the lower frame upper surface contact portion 23a contacts the upper surface of the nonflammable sheet 22 from the upper surface of the lower frame 5. It is fixed to the lower frame 5 with screws 24 at a predetermined pitch in the longitudinal direction. The inner rail 10 is located at the outdoor side end of the indoor lower frame member 5b, and a groove-like locking portion 25 having an open outdoor side is formed at the base of the inner rail 10 for reinforcement. The indoor side end of the lower frame upper surface contact portion 23 a of the material 23 is inserted into the locking portion 25. The outer rail 9 has a protrusion 26 that swells indoors at the upper end of the outer rail 9, and the outer rail receiving portion 23 c of the reinforcing member 23 is positioned below the protrusion 26 with a gap therebetween. Between the lower frame upper surface contact part 23a and the outer rail reinforcement part 23b of the reinforcing material 23, it has the inclination part 23d inclined upward toward the outdoor side.

  In the event of a fire, when the heat insulating material 7 of the lower frame 5 made of urethane resin melts and burns, a highly flammable gas is generated. As described above, the non-combustible sheet 22 is pasted on the upper surface of the lower frame 5 between the inner and outer rails 9 and 10. Since the heat insulating material 7 is covered with the non-combustible sheet 22, the heat insulating material 7 is protected from the flame by the non-combustible sheet 22, and even if the heat insulating material 7 melts and burns to generate combustible gas, the combustible gas is sashed. Since it can prevent entering the inner peripheral side of the frame 1, it is possible to prevent the fire from moving from the outdoor to the indoor or from the indoor to the outdoor, and to improve the fireproof performance. Further, the nonflammable sheet 22 is pressed by the lower frame upper surface contact portion 23a of the reinforcing material 23, so that the incombustible gas generated from the heat insulating material 7 tries to enter the inner peripheral side of the sash frame 1 and the lower side. The frame upper surface abutting portion 23a can more reliably block the nonflammable sheet 22 and the lower frame upper surface abutting portion 23a can reinforce the nonflammable sheet 22 and prevent the nonflammable sheet 22 from detaching from the upper surface of the lower frame 5.

  In addition to the function of reinforcing and protecting the non-combustible sheet 22 as described above, the reinforcing material 23 has a function of suppressing the deformation of the lower frame 5 and preventing the outer shoji 2 from falling off in a fire. When a fire breaks out, the lower frame 5 is softened by the heat of the fire, and the outer rail 9 of the lower frame 5 has a force that pushes downward due to the weight of the outer cover 2 and the heel of the outer cover 2 being extended by the heat of the fire. In order to work, the position of the outer rail 9 tends to be lowered or deformed. However, in the present sash, as shown in FIG. 9, the outer rail receiving portion 23 c of the reinforcing member 23 has the protrusion 26 on the upper portion of the outer rail 9. By receiving, it can suppress that the position of the outer rail 9 falls or deform | transforms, and, thereby, the fall of the outer shoji 2 can be prevented reliably. Even if the outer rail 9 is softened or melted by the heat of the fire, the outer rail reinforcing portion 23b can be engaged with the lower part of the outer shoji 2 to prevent the outer shoji 2 from falling off. The reinforcing member 23 has an inclined portion 23d inclined upward toward the outdoor side between the lower frame upper surface contact portion 23a and the outer rail reinforcing portion 23b, whereby the strength of the reinforcing member 23 is improved and the lower frame 5 The effect of suppressing deformation is enhanced, and by providing the drain hole 11 on the upper surface of the lower frame 5 below the inclined portion 23d, rainwater and dew condensation water collected between the inner and outer rails 9 and 10 can be drained well. Further, the indoor side end portion of the reinforcing member 23 is locked to the locking portion 25 formed at the base of the inner rail 10, so that the downward load can be stably supported by the reinforcing member 23 and the reinforcing member 23 is lifted. Since it is regulated, it is possible to more reliably prevent the external shoji 2 from falling off. In a normal state, as shown in FIG. 1, between the protrusion 26 on the upper portion of the outer rail 9 and the outer rail receiving portion 23 c, the locking portion 25 at the base of the inner rail 10 and the indoor side end portion of the reinforcing member 23 Since a slight gap is provided between the inner and outer rails 9 and 10, the reinforcing member 23 can be easily attached from above.

  The incombustible sheet 22 to be attached to the upper surface of the lower frame 5 is not limited to the “super wool paper” described above, and any incombustible material may be used, for example, a metal foil. Further, the non-combustible material 22 is not limited to being formed into a sheet shape, and may be applied. The non-combustible material 22 may be provided only in a portion that covers the heat insulating material 7 of the lower frame 5, but the reinforcing material 23 is removed by providing the non-combustible material 22 so as to cover the entire width between the inner and outer rails 9 and 10 as in the embodiment. It can be mounted stably without rattling, and the upper surface of the lower frame 5 can be protected from flames to further improve the fireproof performance.

FIG. 19 shows another example of the reinforcing material 23 of the lower frame. The reinforcing member 23 is provided with a step-like bent portion 23e between the lower frame upper surface abutting portion 23a and the outer rail reinforcing portion 23b. Provided. The refractory material 68 is located directly above the drain hole 11 on the upper surface of the lower frame. A non-combustible sheet 22 is not provided on the upper surface of the lower frame 5 between the inner and outer rails 9 and 10.
If the reinforcing member 23 is formed in this way, a wide gap 67 between the reinforcing member 23 and the indoor lower frame member 5a can be secured, so that drainage of rainwater and condensed water that has entered between the inner and outer rails 9 and 10 is improved. To do. Moreover, in the event of a fire, as shown in FIG. 20, since the gap 67 between the reinforcing member 23 and the indoor side lower frame material 5a is blocked by the foamed refractory material 68, it is blocked by the foamed refractory material 68 and insulated. It is possible to prevent the combustible gas 69 generated from the material 7 from entering the inside of the shoji 2 through the gap between the upper surface of the lower frame 5 and the reinforcing material 23. Thereby, it is possible to prevent the flammable gas from igniting and spreading fire around the external shoji 2, and to improve the fireproof performance of the sash. Further, the drainage hole 11 on the upper surface of the lower frame is closed by the foamed refractory material 68, and the drainage hole 13 is also closed by the foamed refractory material 16, so that hot air, smoke, etc. from the drainage path of the lower frame 5 from the outside Intrusion into the room or from the room to the outside can be prevented, and the fireproof performance can be improved.

  The material of the reinforcing member 23 is not particularly limited, but a material that does not easily melt or deform in the event of a fire, or a metal such as stainless steel or iron is preferable. The reinforcing member 23 does not have the outer rail reinforcing portion 23b and the outer rail receiving portion 23c, and may simply be a plate-like member that reinforces the noncombustible material (noncombustible sheet 22) in the event of a fire, or the outer rail reinforcing portion. A member having a U-shaped cross section having a rising portion along the outdoor side surface of the inner rail 10 in addition to 23b may be used. When the rising portion along the inner rail 10 is provided, the height is preferably set to a height equal to or less than half that of the inner rail 10 so as not to rub against the lower tight material 53a (see FIG. 2) of the inner shoji 3. . A fixing tool (for example, a rivet) other than the screw 24 can be used to fix the reinforcing member 23 to the lower frame.

  As shown in FIGS. 2 and 4, a resin cover 27 is installed on the side of the inner shoji 3 between the inner and outer rails 9 and 10 of the lower frame 5. The resin cover 27 is locked and attached to a locking portion 25 at the base of the inner rail 10 and a protrusion 28 formed at an intermediate portion of the inner side surface of the outer rail 9. Thus, the design property can be improved by providing the resin cover 27 on the side of the inner shroud 3 between the inner and outer rails 9 and 10 of the lower frame 5. In FIG. 4, reference numeral 29 is a shoji stopper, reference numeral 30 is a shoji stopper, and reference numeral 31 is a sign that prevents rain and wind from invading through the gap between the lower part of the summoning collar of the inner and outer shoji 2 and 3 and the lower frame 5. It is a seal piece.

FIGS. 12 and 13 show an example in which a degassing part 32 is provided in the reinforcing member 23 of the lower frame 5 for releasing the combustible gas generated from the heat insulating material 7 in the event of a fire. The reinforcing member 23 is provided with a notch 33 at the indoor side edge of the lower frame upper surface contact portion 23 a, and the notch 33 serves as a gas vent portion 32. In the range of the gas vent portion 32, the incombustible sheet 22 is also provided with a notch 34 having the same shape as the reinforcing material 23 so that the heat insulating material 7 is not covered. The degassing part 32 is located in the intermediate part in the width direction of the external shoji 2. Further, a notch 59 for draining is provided on the outdoor side in the longitudinal middle portion of the reinforcing member 23.
When the heat insulating material 7 of the lower frame 5 is entirely covered with the non-combustible sheet 22, there is no escape place for the combustible gas generated from the heat insulating material 7 in the event of a fire, and the flammable gas is combustible from the corner portion of the sash frame 1 that corresponds to the cut end of the non-combustible sheet 22 There is a risk of gas spurting, and the corners of the sash frame 1 and the shoji 2 and 3 corners are particularly vulnerable to fire, so the sash frame 1 and the shoji 2 and 3 corners are damaged by igniting the combustible gas. There is a risk of receiving. As described above, when notches 33 and 34 are formed in the reinforcing material 23 and the non-combustible sheet 22 of the lower frame 5 and the gas venting portion 32 is provided, combustible gas generated from the heat insulating material 7 is discharged from the gas venting portion 32. The fireproof performance can be improved by positively letting the combustible gas escape from a place where the fireproof performance is less affected (intermediate portion in the width direction of the outer shoji 2 and the inner hand shoji 3).

  The gas vent 32 provided in the reinforcing member 23 can be provided by making a hole or forming a slit in addition to the notch as described above. The non-combustible sheet 22 may be provided with a portion that does not cover the heat insulating material 7 within the range of the gas vent portion 32 of the reinforcing material 23. Other than the aspect in which the non-combustible sheet 22 is partially cut out or perforated. Alternatively, the non-combustible sheet 22 may be divided on both sides of the degassing part 32 so that the non-combustible sheet 22 is not pasted by the width of the degassing part 32.

  14 and 15, the connecting member 60 for connecting the reinforcing member 23 to the lower frame 5 on the indoor side of the inner rail 10 is provided, and the outdoor lower frame member 5 a and the indoor lower frame member 5 b are connected by the connecting member 60. The form is shown. The connecting member 60 is formed of a stainless steel plate and is disposed at both ends of the reinforcing member 23 in the longitudinal direction. The connecting member 60 contacts the lower frame upper surface contact portion 23a of the reinforcing member 23 and is fixed by screws 61. Main body portion 60a and an extension portion 60b extending from the main body portion 60a to the indoor side, and the extension portion 60b is inserted through a drain hole 62 formed in the lower portion of the inner rail 10. A base material 63 formed of a stainless steel plate having the same thickness as that of the reinforcing member 23 and wider than the drain hole 62 is attached to the upper surface of the indoor lower frame member 5b on the indoor side of the inner rail 10 with screws 64. The extending part 60 b of the connecting member 60 is fixed on the base member 63 with screws 65.

  When the heat insulating material 7 of the lower frame 5 starts to burn out in the event of a fire, the space between the outdoor lower frame material 5a and the indoor lower frame material 5b opens, and the outdoor lower frame material 5a tends to be deformed to fall to the outdoor side. However, since the reinforcing member 23 is connected to the indoor lower frame member 5b via the connecting member 60 and the base member 63 as in the present embodiment, the outdoor lower frame member 5a and the indoor lower frame member 5b are connected. It is possible to prevent the gap from being opened and to prevent the outdoor lower frame member 5a from being deformed so as to fall to the outdoor side. Further, since the movement of the reinforcing member 23 to the outdoor side is restricted by the connecting member 60, the indoor side end portion of the reinforcing member 23 can be maintained in a state of being locked to the locking portion 25 at the base of the inner rail 10. Accordingly, it is possible to prevent the outer rail 9 from being lowered, and thus it is possible to more reliably prevent the outer shoji 2 from falling off. The connecting member 60 can be easily installed by utilizing the drain hole 62 originally formed in the inner rail 10, and the connecting member 60 can be retrofitted to the lower frame 5 of the existing sash. Since the base material 63 wider than the drain hole 62 of the inner rail 10 is installed in the indoor lower frame material 5b, and the extending portion 60b of the connecting material 60 is fixed to the base material 63 with the screw 65, it is connected in the event of a fire. Even if the material 60 is pulled to the outdoor side, the base material 63 is not caught by the drain hole 62 and pulled out, and the connecting material 60 can be firmly connected to the indoor side lower frame material 5b. Further, by installing the base material 63 having the same thickness as that of the reinforcing material 23, the heights of the mounting surfaces on the outdoor side and the indoor side of the connecting material 60 coincide with each other, and the connecting material 60 can be attached stably.

  The material of the connecting member 60 and the base member 63 is not particularly limited, but a material that does not easily melt or deform in the event of a fire, or a metal such as stainless steel or iron is preferable. As shown in FIG. 16, the base member 63 may not be installed, and the extending portion 60b of the connecting member 60 may be directly fixed to the upper surface of the indoor side lower frame member 5b with screws 65. The connecting member 60 is the one in which the interior and the exterior are reversed, that is, the extended portion 60 b of the connecting member 60 is inserted into the drain hole 62 of the inner rail 10 from the indoor side and fixed to the reinforcing member 23. Alternatively, the wide main body 60a may be fixed to the indoor lower frame member 5b. Further, the connecting member 60 may be formed in a strip shape with a constant width narrower than the drain hole 62.

  17 and 18 show an embodiment in which the connecting member 66 is provided without providing the reinforcing member 23 on the lower frame 5. The connecting member 66 has a main body portion 66a wider than the drain hole 62 of the inner rail 10 on the indoor side of the inner rail 10, and an extending portion 66b extending outward of the main body portion 66a. The protruding portion 66b is inserted into the drain hole 62 of the inner rail 10 from the indoor side and fixed to the upper surface of the outdoor lower frame member 5a with screws 61, and the main body 66a is fixed to the upper surface of the indoor lower frame member 5b with screws 65. It is fixed. Even when the outdoor lower frame member 5a and the indoor lower frame member 5b are connected by the connecting member 66 inserted into the drain hole 62 of the inner rail 10 without providing the reinforcing member 23 as in the present embodiment, the outdoor side. The effect of preventing the outer frame 2 from falling off by preventing the opening between the lower frame member 5a and the indoor lower frame member 5b is obtained. In FIGS. 14 to 18, the non-combustible sheet 22 is not described on the upper surface of the lower frame between the inner and outer rails 9 and 10, but the non-combustible sheet 22 can be installed as in FIG. 13. The connecting members 60 and 66 are not necessarily inserted into the drain hole 62 of the inner rail 10, and are installed by being inserted into holes or notches formed in the inner rail 10 separately from the drain hole 62. You can also.

  As shown in FIG. 5, the upper frame 4 of the sash frame 1 is formed by caulking and connecting an outdoor upper frame member 4a made of an aluminum alloy extruded shape member and an indoor upper frame member 4b to a heat insulating material 39 made of resin. In addition, a resin angle 35 is engaged and attached to the indoor upper frame member 4b, and a resin cover 38 is engaged and attached between the inner and outer rails 36 and 37, thereby preventing condensation on the indoor side. The heat insulating material 39 of the upper frame 4 is made of nylon resin mixed with glass fiber, and is less likely to melt and burn in the event of a fire than the heat insulating material 7 of the lower frame 5 using urethane resin. Since the influence by the combustible gas generated from 39 is small, the heat insulating material 39 is not covered with a non-combustible sheet like the lower frame 5. In addition, in order to protect the upper frame 4 from a flame, you may stick an incombustible sheet to the inner peripheral side surface of the upper frame 4. FIG. Moreover, when the heat insulating material 39 of the upper frame 4 is also urethane resin like the lower frame 5, the fireproof performance can be improved by covering the heat insulating material 39 with a non-combustible sheet attached to the inner peripheral side surface of the upper frame.

  As shown in FIGS. 5 and 6, the external shoji 2 and the inner shoji 3 are composed of an upper arm 40 a, 40 b, a lower arm 41 a, 41 b, a door toe 42 a, 42 b, and a summon armor 43 a, 43 b. A glass 44 is fitted and attached to the inner periphery via a glazing channel 45. As the glass 44, a multilayer glass is used. The upper rods 40a, 40b, the lower rods 41a, 41b and the door toe rods 42a, 42b are made of aluminum on the outdoor side and formed of resin on the indoor side. Is covered with a cover 46 made of resin. The external shoji 2 and the internal shoji 3 prevent dew condensation on the indoor side by covering the indoor side of the bag with resin and using double glazing.

As shown in FIG. 6, the door rods 42 a and 42 b and the calling rods 43 a and 43 b have a hollow portion 58, and a reinforcing material 47 having a U-shaped cross section is provided in the hollow portion 58 over almost the entire length in the longitudinal direction. It is arranged and fixed with screws 48 at a predetermined pitch in the longitudinal direction. The reinforcing material 47 is formed by bending a hot-dip galvanized steel sheet. By providing the reinforcing material 47 in this way, it is possible to prevent thermal elongation and deflection of the door-towers 42a and 42b and the summons 43a and 43b during a fire.
In addition, the upper plate 40a, 40b, the lower plate 41a, 41b, the door-end plate 42a, 42b, and the sump rod 43a, 43b are formed in the glass holding groove 49 on the inner peripheral side by bending a stainless steel plate into a U-shape. The glass front opening reinforcing material 50 is disposed so as to surround the outside of the glazing channel 45 and is fixed with screws 51 at a predetermined pitch in the longitudinal direction. The glass front reinforcing material 50 covers the entire peripheral edge of the glass 44. By providing the glass front opening reinforcing member 50 in this way, it is possible to prevent the glass 44 from falling off even if the outdoor wall and the indoor wall of the glass holding groove 49 of the firewood are melted by the heat of the fire.

As shown in FIGS. 1 and 2, the lower rods 41 a and 41 b are formed with grooves 52 that squeeze the rails 9 and 10 on the outer peripheral side, and tight materials 53 a and 53 b are provided along the lower edges of the grooves 52. Refractory materials 57a and 57b are provided which expand and expand when heated above the tight materials 53a and 53b. The refractory materials 57a and 57b are provided continuously over the entire length of the lower rod 41a and 41b. In the event of a fire, as shown in FIG. 9, the refractory materials 57 a and 57 b expand to close the gap between the lower rods 41 a and 41 b and the rails 9 and 10.
As shown in FIG. 6, the door-end rods 42 a and 42 b are formed with grooves 55 that squeeze the protrusions 54 of the rod frame 6 on the outer peripheral side, and expand and expand when heated on the bottom surface of the grooves 55. The refractory material 57c is provided continuously over the entire length of the door-end fences 42a and 42b. In the event of a fire, the refractory material 57c expands and expands, closing the gap between the fence frame 6 and the door-end fences 42a and 42b.
A fireproof material 57d that foams and expands when heated in the vicinity of the smoke return 56 is provided on the side of the indoor side of the sump 43a of the shoji 2 so as to extend continuously over the entire length of the sump 43a. The refractory material 57d foams and expands, and closes the gap between the inner and outer shoji summons 43a and 43b. As each said refractory material 57a, 57b, 57c, 57d, the brand name "Fibro" by Sekisui Chemical Co., Ltd. can be used, for example.
Thus, in the event of a fire, this sash has a gap between the lower fences 41a and 41b and the rails 9 and 10 of the lower frame 5, a gap between the door-end fences 42a and 42b and the fence frame 6, and a gap between the inner and outer shoji summons 43a and 43b. Are closed by the refractory materials 57a, 57b, 57c, 57d, respectively, so that the lower rod 41a, 41b and the lower frame 5, the door rod 42a, 42b and the rod frame 6, and the inner and outer shoji summoned rod 43a, 43b. It is possible to prevent hot air, smoke, etc. from entering from the outside to the inside or from the inside to the outside, thereby improving the fire prevention performance.

  The present invention is not limited to the embodiments described above. The cross-sectional shape of the lower frame 5 can be changed as appropriate, and may be a stepped lower frame that does not have the hollow portion 12, for example. The incombustible material 22 is not necessarily provided. The resin cover 27 between the inner and outer rails 9 and 10 may be omitted, and the resin cover 22 may be installed so as to hide the reinforcing member 23 not only on the inner shroud 3 side but also on the outer shroud 2 side. The present invention can be applied not only to a sliding sash having two sheets of shoji but also to a sliding sash having three or four shoji. Further, the present invention can also be applied to a one-sided sash in which either one of the external shoji 2 or the inner shout 3 is fixed to the sash frame 1.

DESCRIPTION OF SYMBOLS 1 Sash frame 2 External shoji 3 Endoscope 5 Lower frame 5a Outdoor outer lower frame material 5b Indoor lower frame material 7 Heat insulating material 9 Outer rail 10 Inner rail 11 Drain hole 12 Hollow part 13 Drain hole 15, 16 Refractory material 17, 18 Refractory material mounting member 22 Non-combustible sheet (non-combustible material)
23 Reinforcing material 23a Lower frame upper surface contact portion 23b Outer rail reinforcing portion 23c Outer rail receiving portion 23d Inclined portion 24 Screw (fixing tool)
25 Locking portion 27 Resin cover 32 Gas venting portion 60 Connecting material 62 Water drainage hole (hole) of inner rail
63 Base material (Hook)
66 Linking material 66a Body (Hook)

Claims (3)

  The lower frame of the sash frame includes an outdoor lower frame member having an outer rail, an indoor lower frame member having an inner rail, and a resin heat insulating material that connects the outdoor lower frame member and the indoor lower frame member. And a sash comprising a connecting member that is inserted into a hole or notch formed in the inner rail and is provided across the outdoor lower frame member and the indoor lower frame member.   The sash according to claim 1, wherein the connecting member has a catching portion wider than the hole or notch of the inner rail on the indoor side of the inner rail.   The sash according to claim 1 or 2, further comprising a reinforcing member provided between the inner and outer rails and receiving a load of a shoji screen during a fire.

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