JP6979755B2 - Composite fittings - Google Patents

Description

The present invention relates to, for example, a composite fitting in which a shoji is housed in a frame provided at an opening of a skeleton.

Conventionally, a heated foam material is fixed to a metal frame in a vertical window or a sliding window in which a shoji is placed inside a frame provided with a metal frame such as an aluminum alloy and a resin frame. In the event of a fire, the heated foam material expands and foams due to the heat of hot air or flame to fill the indoor and outdoor space, delaying or suppressing the spread of fire indoors and outdoors.
For example, in the vertical sloping window described in Patent Document 1, a heated foam material is attached and caulked to a rising portion of metal rising from the metal lower frame between the metal lower frame and the lower frame of the shoji. Then, when a fire breaks out, the shoji and the window frame are deformed, and when hot air or flame enters the gap between the lower frame and the lower frame of the shoji from the outside, the heated foam material foams and expands, and the room is used to block the hot air and flame. Fire protection can be improved by preventing the spread of fire inward.

Japanese Unexamined Patent Publication No. 2015-42799

By the way, like the composite type siding window described in Patent Document 1, when the heated foaming material is attached between the lower frame and the shoji, it is possible to suppress the spread of fire due to fire from indoors and outdoors and improve the fire resistance. It is necessary to install the heated foam material in an effective position to do so. For that purpose, the metal lower frame made of aluminum alloy must be extended to a position effective for installing the heated foam material, which has the disadvantages that the design and construction are complicated and the installation cost of the metal lower frame increases. there were.

The present invention has been made in view of such a problem, and provides a composite fitting that enables easy and inexpensive installation of a heated foaming material at a position effective for suppressing the spread of fire and preventing fire. The purpose.

The composite fitting according to the present invention includes a resin lower frame provided on the metal lower frame of the frame body and a heated foam material attached to the resin lower frame in the composite fitting having a shoji sliding door inside the frame. The metal lower frame is formed in a substantially stepped shape from the outdoor side to the indoor side, and has a first step portion on the outdoor side and a second step portion on the indoor side via a step. resin sill, the disposed on the upper surface of the second stage unit, the heat-foamable material, together are installed indoors side of the shoji, the the bottom rail of the sash at the rising portion of the resin sill metal It is characterized in that it is provided only at a position facing the space formed between the lower frame and the lower frame.
According to the present invention, since the heated foam material is attached to the resin lower frame provided on the metal lower frame in the lower frame of the frame body, the heated foam material can be used even if the resin lower frame is exposed to hot air, flame, etc. in the event of a fire. Since the resin lower frame is prevented from melting and collapsing until it foams and expands, it is possible to prevent hot air and flames from communicating indoors and outdoors and improve fire resistance. Moreover, since the heated foam material is attached to the resin lower frame connected to the metal lower frame, it is not necessary to extend the metal lower frame to the installation position of the heated foam material, and the installation is easy and low cost. In addition, since the heated foam material attached to the resin lower frame is installed indoors from the shoji, the distance between the shoji and the frame is large, and in the event of a fire from the outdoor side, the resin lower frame and the heated foam material will be exposed to hot air and flames. Less susceptible. In addition, since the resin member such as the resin frame to which the heated foam material is attached is installed at the rising portion from the metal lower frame, the heated foam material is used before the metal lower frame supporting the resin member collapses or deforms due to heat in the event of a fire. Can be expanded and foamed. Further, the space between the metal lower frame and the lower frame of the shoji can be sealed by the thermal expansion of the heated foam material, and the flame and smoke can be suppressed from flowing indoors and outdoors.
Further, the resin lower frame may be formed with a plurality of hollow portions.

According to the composite fitting according to the present invention, even if the resin lower frame provided on the metal lower frame is exposed to a high temperature in the event of a fire or the like, the heated foam material can be held so as not to melt and collapse until it expands. It can prevent the spread of fire and improve fire resistance. Moreover, since the heated foam material is attached to the resin lower frame provided on the metal lower frame, it is not necessary to extend the metal lower frame or the like to the installation position of the heated foam material, and the installation is easy and low cost.

It is a vertical cross-sectional view of a main part which shows the arrangement structure of the lower frame of a vertical siding window and a shoji, according to an embodiment of this invention. It is an enlarged sectional view of the heated foaming material installed between the lower frame and a shoji shown in FIG. 1.

Hereinafter, as an example of the composite fitting according to the embodiment of the present invention, a vertical window will be described with reference to FIGS. 1 and 2.
The vertical window 1 according to the embodiment shown in FIG. 1 is made of a composite fitting of a metal such as an aluminum alloy and a resin. In the vertical sloping window 1, a frame body 5 in which an upper frame and a lower frame 3 made of aluminum alloy and resin and left and right vertical frames 4 are formed in a quadrangular frame shape is attached to an opening 2 of the skeleton, respectively. In the frame body 5, a metal frame provided on the outdoor side and a resin frame provided on the indoor side are engaged with each other.
The shoji 7 housed in the frame 5 so as to be openable and closable has an upper stile and a lower stile 21 made of an aluminum alloy and a resin, and left and right vertical stiles, and the inside thereof is made of double glazing such as double glazing. The glass panel 9 is housed. The hanging source of the shoji 7 is provided near one end of the frame body 5 in the finding direction, and its axis extends in the vertical direction and is supported by an upper frame and a lower frame 3 (not shown).

In the frame body 5 shown in FIG. 2, the metal lower frame 11 made of, for example, an aluminum alloy of the lower frame 3 extends from the outdoor side to the indoor side in a cross-sectional view. The lower lower frame 11a of the metal lower frame 11 extends from the outdoor side to the indoor side along the opening 2, and the bent portion 11aa bent downward on the way is fixed to the skeleton with a fixing screw 10. The upper lower frame 11b formed on the upper side of the lower lower frame 11a is formed in a substantially stepped shape from the outdoor side to the indoor side, and a drain hole 11c is formed in the lower portion on the outdoor side.

The stepped portion of the upper lower frame 11b forms a first step portion 11ba and a second step portion 11bb via a step, and a resin lower frame 12 forming a plurality of hollow portions is attached to the second step portion 11bb. Has been done. The resin lower frame 12 has a base portion 12b having a tip claw portion 12a locked to a claw portion 14 having a substantially L-shaped cross section provided on the second step portion 11bb, and a rising portion 12c standing upward. There is. A receiving portion 17 is formed in the rising portion 12c of the resin lower frame 12 as a holder for holding the heated foaming material 16, and the heated foaming material 16 is inserted into the receiving portion 17 from the side, for example, and fixed by crimping the receiving portion 17. Has been done.

Here, the heated foaming material 16 is a known material, and is made of a material that is flame-retardant and expands and foams when heated to a predetermined temperature to increase its volume. The expansion start temperature is not particularly limited, but is preferably about 150 ° C., for example, in accordance with the building standard law and the heating curve of the same construction ordinance. The expansion ratio is not particularly limited, but is preferably 10 to 40 times. The material of the heat foam material 16 is not particularly limited as long as it has such performance, and contains, for example, a heat foam such as graphite or carbon fiber, and the base material is an epoxy resin, a polyvinyl chloride resin, or the like. Examples thereof include those using butyl rubber and the like.

Conventionally, as a member for supporting the heated foam material 16, a metal member having high heat resistance has been used because the resin is weaker in heat than a metal member such as an aluminum alloy or stainless steel and melts and collapses in a relatively short time. .. However, according to the research by the present inventors, the resin member melts before the expansion foaming of the heated foam material 16 because the temperature becomes relatively high between the upper frame and the upper frame of the shoji 7 in the event of a fire or the like. However, it has been found that the resin member can be held without melting down until the heated foam material 16 expands and foams in order to keep the temperature relatively low between the lower frame 3 and the lower frame 3 and the lower frame 21 of the shoji 7. rice field. For example, when a fire breaks out, the resin member remains unmelted in the range of 200 ° C. to 300 ° C. for about 18 to 19 minutes, so that the resin member expands and foams until the heated foaming material 16 expands and foams even when exposed to hot air or flame. It was found that it remained in the startup state.

Therefore, in the embodiment of the present invention, the heat foaming material 16 is held by the resin lower frame 12 of the lower frame 3. In this case, it is more preferable that the heated foaming material 16 is provided with a receiving portion 17 at the rising portion 12c of the resin lower frame 12 that is close to the metal lower frame 11 and rises from the metal lower frame 11 to hold the heated foaming material 16.
The upper end portion of the rising portion 12c is bent toward the shoji 7 side, and the first fin portion 18 made of an elastic member is installed at the tip thereof so as to abut on the shoji 7 that opens and closes. Further, a second fin portion 19 made of an elastic member such as rubber is attached to the outdoor side tip portion of the first step portion 11ba.

Further, the shoji 7 provided above the lower frame 3 houses a glass panel 9 made of double glazing, for example, double glazing, in a frame. The outdoor side glass 9a is set to have a large thickness, for example, wire-reinforced glass, and the indoor side glass 9b is set to have a smaller thickness than the outdoor side glass 9a. The lower stile 21 of the stile has a metal lower stile 22 and a resin lower stile 23 provided on the indoor side thereof, and the metal lower stile 22 has a glass panel 9 having a glass panel 9 having a substantially U-shaped cross section via a glazing channel 24. It is supported by the support receiving portion 22a. The outdoor side hanging portion 22b of the metal lower stile 22 has a substantially L-shaped draining portion 22c provided at the lower end while pressing and supporting one of the glazing channels 24 at the upper end. Further, the second fin portion 19 attached to the first stage portion 11ba of the metal lower frame 11 abuts on the draining portion 22c to prevent rainwater and the like from entering.
Two-stage engaging receiving portions 22d and 22e located on the indoor side of the glass panel 9 are formed at the indoor side end of the metal lower stile 22, and the resin lower stile 23 engages with the engaging receiving portions 22d and 22e. The engaging claws 23a and 23b are formed. The resin lower stile 23 has a plurality of flow portions on the upper and lower sides, and a locking portion 23c for pressing and fixing the glazing channel 24 is formed on the outdoor side of the upper portion thereof. The first fin portion 18 formed at the upper end of the resin lower frame 12 is in contact with the resin lower stile 23 of the shoji 7 that opens and closes.

Then, a space K extending in the indoor / outdoor direction is formed between the metal lower frame 11 of the lower frame 3 and the metal lower stile 22 and the resin lower stile 23 of the shoji 7, and the outdoor side thereof is the outdoor side hanging of the metal lower stile 22. The portion 22b and the second fin portion 19 are sealed, and the indoor side is sealed by the rising portion 12c of the resin lower frame 12 rising from the metal lower frame 11 and the first fin portion 18. Moreover, the heated foaming material 16 is vertically held by the receiving portion 17 at the rising portion 12c of the resin lower frame 12 facing the space K.

The vertical sloping window 1 according to the present embodiment has the above-mentioned configuration, and the operation thereof will be described next.
For example, when a fire breaks out on the outdoor side of a building and the vertical window 1 is exposed to high temperature, hot air or hot air is generated in the space K between the shoji 7 and the upper frame and the space K between the shoji 7 and the lower frame 3. It is easy for flames to flow in. On the upper frame side, the space between the upper frame and the shoji 7 is relatively hot, so the resin upper frame and the like are exposed to high temperatures and easily melt, but the space K between the lower frame 3 and the shoji 7 is relatively hot. Since it is low, the resin lower frame 12 does not melt immediately even when exposed to hot air or flame, and is held on the metal lower frame 11 for a predetermined time. In particular, the rising portion 12c and the heated foaming material 16 are located on the indoor side of the glass panel 9 of the shoji 7 and are not easily affected by hot air or flame, and the heated foaming material 16 melts by preventing it from falling or collapsing until it expands and foams. Can hold up without.
Then, before the rising portion 12c of the resin lower frame 12 melts at a high temperature, the heated foaming material 16 expands and foams to seal the space K. As a result, it is possible to prevent the communication of hot air and flames indoors and outdoors of the vertical window 1 and suppress the spread of fire.

As described above, according to the vertical sloping window 1 according to the present embodiment, even if the heated foam material 16 is provided on the rising portion 12c of the resin lower frame 12 in the lower frame 3, hot air or hot air is generated from the outdoor side in the event of a fire or the like. When exposed to a flame, the resin lower frame 12 does not melt until the expansion foaming of the heated foaming material 16. Therefore, it is not necessary to extend the metal lower frame 11 or install a metal piece for attaching the heated foaming material 16 in order to fix the heated foaming material 16, and the heated foaming material 16 can be attached easily and inexpensively.
Moreover, since the rising portion 12c of the resin lower frame 12 to which the heated foam material 16 is attached is raised from the metal lower frame 11 and installed on the indoor side of the shoji 7, it is difficult for hot air, flames, etc. to reach, and in this respect as well, the resin lower frame 12 is difficult to dissolve.

The mounting structure of the heated foam material 16 of the vertical sloping window 1 according to the present invention is not limited to the above-described embodiment, and can be appropriately changed or replaced without departing from the gist of the present invention. be. Hereinafter, modifications and the like of the present invention will be described, but the same or similar parts and the same parts as those described in the above-described embodiment will be omitted by using the same reference numerals.

In the above-described embodiment, the heated foaming material 16 is attached vertically to the rising portion 12c of the resin lower frame 12 so as to stand upright in a substantially vertical direction. The orientation and posture of the is arbitrary.
Further, it is preferable that the heated foaming material 16 is installed in the space K between the metal lower frame 11 and the lower stile 21 where hot air and flames easily flow indoors and outdoors in the lower frame 3. However, the mounting position of the heated foam material 16 in the region of the lower frame 3 according to the present invention does not necessarily have to be the space K between the lower frame 3 and the lower frame 21 of the shoji 7. For example, it may be attached to the resin lower frame 12 or the resin lower stile 23 in the lower frame 3 or the lower stile 21, and at that time, a resin member other than the resin lower frame 12 or the resin lower stile 23 may be provided and attached. good. The resin lower frame 12 and the resin lower frame 23 are also included in the resin member of the present invention.

Further, the heated foam material 16 and the rising portion 12c of the resin lower frame 12 do not have to be installed on the indoor side of the shoji 7, and may be, for example, the lower side of the lower stile 21 of the shoji 7.
In the above-described embodiment, the case where a fire occurs on the outdoor side has been described, but the present invention can also be applied to the case where a fire occurs on the indoor side.
Further, although the vertical siding window 1 has been described as an example of the composite fitting according to the present invention, the present invention is not limited to this, and the present invention is not limited to this, and the horizontal sloping window, the sliding window, the FIX window, the continuous window, the single window, etc. It can be applied to various composite fittings of.

1 Vertical window 2 Opening 3 Lower frame 5 Frame body 7 Shoji 9 Glass panel 11 Metal lower frame 12 Resin lower frame 12c Rising part 16 Heated foam material 17 Receiving part 21 Lower stile 22 Metal lower stile 23 Resin lower stile

Claims (2)

In a composite fitting with shoji inside the frame,
The resin lower frame provided on the metal lower frame of the frame body and
With a heated foam material attached to the resin lower frame,
The metal lower frame is formed in a substantially stepped shape from the outdoor side to the indoor side, and has a first step portion on the outdoor side and a second step portion on the indoor side via a step.
The resin lower frame is arranged on the upper surface of the second stage portion.
The heat-foamable material, together are installed indoors side of the sash, provided only at a position facing the space formed between the bottom rail and the metal sill of the sliding door at the rising portion of the resin sill A composite fitting that is characterized by being made. The composite fitting according to claim 1, wherein the resin lower frame is formed with a plurality of hollow portions.

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