JP6275430B2 - Window fire prevention structure - Google Patents

Description

  The present invention relates to a fire prevention structure for sliding windows and raising / lowering windows installed in a building such as a house.

  Windows such as sliding windows in buildings are required to have a function to prevent the spread of fire in the event of a fire. As one means for enhancing such a fire spread prevention function, there is one using a fireproof crescent having high fire resistance as described in Patent Document 1. Further, Patent Document 2 discloses that the sliding window having a multilayer panel composed of two glass panels having different fire resistances exposes all four folds of the shoji as viewed from the glass panel side having high fire resistance. It has been proposed that the temperature distribution of the soot at the time of the fire is made as uniform as possible by taking the construction of either covering or hiding all of the frame, thereby preventing the glass panel from cracking.

No. 7-55244 JP 2013-108259 A

  However, as described in Patent Document 1, in the case of using a fireproof crescent, the fireproof crescent is more expensive and expensive than the non-fireproof crescent, and the fireproof crescent is included in one building. When non-fireproof crescents are mixed, there is a problem that the design properties cannot be unified.

  On the other hand, when a non-fireproof crescent is used for the sliding window described in Patent Document 2, there are the following problems. FIG. 7 is a transverse cross-sectional view showing the joint portions of the summing rods 8 and 13 of the indoor shoji 5 and the outdoor shoji 6 with the sliding window closed. Reference numeral 17 denotes a crescent attached to the summing bowl 8 of the indoor shoji 5, and reference numeral 20 denotes a metal fitting provided on the summing bowl 13 of the outdoor shoji 6. Numerals 24 and 25 are smoke smokes provided on the opposing surfaces of the summons 8 and 13, respectively. When the shoji 5 and 6 are closed as shown, these smoke smokes 24 and 25 are opposite to each other. It will be in the state where it crossed so that it might face.

  Here, when a non-fire-proof crescent is used as the crescent 17, when the crescent 17 melts due to the occurrence of a fire from the indoor side, the combination of the summons 8, 13 is released, and as shown in FIG. As a result of the thermal expansion of the reed 6 (not shown) and the glass panels 11 and 16, the summons 8 and 13 move to the opposite sides as indicated by arrows X1 and X2, respectively.

  That is, when the shoji 5 and 6 are closed, the shochu (not shown) on the opposite side of the summons 8 and 13 among the shochu of the shoji 5 and 6 is the vertical frame of the window frame (not shown). ), The vertical saddle on the opposite side of the summons 8 and 13 cannot move even when the shoji 5 and 6 expand, but when the crescent 17 is melted, the summons 8 and 13 Are unconstrained with each other, so that the summoning rods 8 and 13 are moved as indicated by arrows X1 and X2 by the expansion of the shoji 5 and 6.

  Further, when fired indoors, the vertical center of the summoning bowl 8 of the indoor shoji 5 is deformed to the indoor side as indicated by the arrow Y1 due to thermal expansion, so that the smoke return 24, 25 is disconnected. As a result, the gap g between the summon bowls 8 and 13 is increased, and hot air or flame is ejected from the indoor side toward the outdoor side through the enlarged gap g, and it is easy to cause fire spread. Such a problem also occurs in the raising and lowering windows.

  In view of the above-mentioned problems, the present invention prevents fire spread due to an increase in the gap between the doors for indoor and outdoor shoji even in the case of using a non-fire-proof crescent in the sliding window and the raising and lowering window, thereby preventing fire. An object is to provide an improved window fire prevention structure.

The fire prevention structure of a window according to claim 1 is a fire prevention structure of a window configured as a sliding window or a raising / lowering window,
Each of the outdoor shoji and indoor shoji summons has a smoke return that crosses so that the back sides of the other party face each other when the shoji is closed,
In calling combined stile of the indoor side shoji, the surface facing the calling mating stile of the outdoor side shoji, recessed into the indoor side from the outdoor side of the smoke-back of the indoor side shoji, songs on both sides is approximately C-shaped cross section With a mounting groove formed,
The mounting groove, the heat-foamable material for closing the gap between the mating stile each other callings and foamed by heating, and characterized in that attached by fitting the both sides in the song formation portions of both sides of the mounting groove To do.

The window fire prevention structure according to claim 2 is the window fire prevention structure according to claim 1 ,
And characterized in that the calling combined stile of the outdoor side shoji, heated foam for closing the gap between the mating stile each other callings and foamed by also heating the opposed surfaces of the calling mating stile of the indoor side sash is provided To do.

The window fire prevention structure according to claim 3 is the window fire prevention structure according to claim 1 or 2 ,
The heat-foamable material, characterized in that the foaming temperature is 250 ° C. or less.

The window fire prevention structure of claim 4 is a window fire prevention structure configured as a sliding window or a raising and lowering window,
A heating foam material that foams by heating and closes the gap between the summons on the opposite side of the summit screen of the outdoor shojis in the summit screen of the indoor shoji,
A non-fire-proof crescent is attached to the sumo bowl for the indoor shoji.

  According to the invention of claim 1, when the fire breaks out, the heated foam material provided in the candy foaming foams, and the gap between the indoor shoji summoning candy and the outdoor shoji summoning candy is blocked by the foam. Is done. For this reason, it is prevented that hot air and a flame from the summoning room of the inner and outer shoji are ejected to the outside of the room, and the spread of fire is prevented. As a result, even when a non-fireproof crescent is used as the crescent, it is possible to achieve an improvement in fireproofing by preventing the spread of fire.

  In addition, since the heating foam was provided on the indoor shoji summon, when the fire broke out from the indoor side, the indoor shoji summon was heated prior to the outdoor shoji summon. The foam material foams in a short time. For this reason, even when a non-fireproof crescent is used, before and after the crescent melts, the inner and outer sump spaces are filled with the foam, and a reliable fire spread prevention effect is obtained.

In addition , the gap between the inner and outer candy baskets is filled with foam, so that a force to separate the candy jars is generated, so that the smoke return formed on the inner and outer jars is pressed against each other. . As a result, the frictional resistance between the smoke return increases, and this frictional resistance is added to the frictional resistance generated between the foam and the sump so that there is a large friction between the internal and external summits. Resistance occurs, making it difficult to open the shoji. For this reason, the fire spread preventing effect is further improved, and fire resistance is improved.

According to the second aspect of the present invention, since the heating foam material is also provided on the opposite side of the outside shoji summon screen to the indoor shoji summon screen, the foam is widely and widely foamed between the inside and outside summon screens. The body can be filled, and furthermore, the friction resistance between the inner and outer summons and the foam increases, making it difficult for the summons to move, so fire resistance can be improved.

  In addition, in the case with smoke return, since the force to press the summons with foam in the event of a fire increases, the frictional resistance between the inside and outside smoke increases also increases. Combined with an increase in the frictional resistance between the two, the fire spread prevention effect is further increased, and the fire resistance is improved.

According to the invention of claim 3 , since a foaming temperature of 250 ° C. or less was used as the heating foam material, in combination with the provision of the heating foam material on the sump for the indoor shoji, a fire occurred. The foamed material can be foamed in a short time from time to time, and before the crescent melts and the gap between the inner and outer summons increases, the foam closes the gap between the summons and improves fire resistance. Can be secured.

According to the invention of claim 4, a non-fireproof crescent is used as the crescent, but a heat-foaming material that closes the gaps between the serving cups when a fire occurs is provided, thereby providing a highly fireproof window. It can be realized. In addition, since the non-fireproof crescent is used as the crescent, the price of the crescent can be reduced, and the crescent and design of the window where fireproofing is not required can be unified.

It is the sliding window which shows one Embodiment of the fire prevention structure of the window of this invention, and is the figure which looked at the window from the indoor side. It is EE expanded sectional drawing of FIG. In this embodiment, it is a cross-sectional view showing a state where a heating foam material is foamed when a fire occurs. It is a cross-sectional view which shows other embodiment of the fire prevention structure of the window of this invention. In embodiment of FIG. 4, it is a cross-sectional view which shows the state which the foaming material heated at the time of fire outbreak. It is a longitudinal cross-sectional view which shows the example which applied the fire prevention structure of the window of this invention to the raising / lowering window. It is a cross-sectional view which shows the part of the summoning bowl of the conventional sliding window. FIG. 8 is a cross-sectional view showing a change in the summoning bowl when a sliding window in FIG. 7 fires.

  FIG. 1 is a sliding window showing one embodiment of the fire prevention structure of a window according to the present invention, as viewed from the indoor side. 2 is an enlarged cross-sectional view taken along line E-E in FIG. In FIG. 1, reference numeral 1 denotes a window frame. The window frame 1 is composed of left and right vertical frames 2, 2 mainly composed of a metal extruded shape such as an aluminum alloy, and an upper frame 3 and a lower frame 4. The Reference numerals 5 and 6 denote an indoor shoji and an outdoor shoji that are slidably mounted on the window frame 1 and constitute a sliding window.

  The indoor shoji 5 is incorporated in a vertical frame 2 side vertical fence 7, a summoning basket 8, an upper basket 9 provided between them, a lower basket 10, and a basket composed of these baskets 7 to 10. Glass panel 11. The outdoor shoji 6 is composed of a vertical frame 2 side vertical rod 12, a summoning rod 13 (see FIG. 2), an upper rod 14 provided therebetween, a lower rod 15, and a rod 12-15. The glass panel 16 is incorporated in the set. These ridges 7 to 10 and 12 to 15 are mainly composed of a metal extruded shape such as an aluminum alloy.

  Reference numeral 17 denotes a crescent attached to the summon bowl 8 of the indoor shoji 5. In this embodiment, for example, a non-fireproof crescent mainly composed of zinc die casting is used. If a non-fireproof crescent is used as the crescent 17 in this way, the price of the crescent can be reduced and the design of the crescent can be unified.

  In addition, as the non-fireproof crescent, in addition to those mainly composed of zinc die casting, those mainly composed of aluminum die casting, magnesium die casting, polyamide resin and the like can be used. However, when realizing the fireproof structure of the present invention, as the crescent 17, for example, a fireproof crescent mainly composed of steel may be used.

  As shown in FIG. 2, the glass panels 11 and 16 are configured as a multi-layer panel by using glass panels 11a and 16a with nets and glass panels 11b and 16b without nets, respectively, in order to improve fire resistance and heat insulation. ing. Reference numerals 11c and 16c denote glazing channels for incorporating these glass panels 11 and 16 into the summons 8 and 13, respectively.

  In the indoor side shoji 5, 8 a is an extruded product made of resin that covers the surface other than the outdoor surface of the summon bowl 8 with an air layer in order to improve heat insulation. The crescent 17 is fastened by screwing the mounting screw 18 through the mounting hole of the crescent 17 and the extruded shape member 8 a and the summing bar 8 into the screw hole of the back plate 19 provided in the summing bar 8. Attach to summon bowl 8 by Reference numeral 20 denotes a metal fitting attached to the summing bar 13 of the outdoor shoji 6 in order to lock the hook 17a of the crescent 17.

  Reference numeral 22 denotes an airtight material provided on the summing bowl 8 of the indoor shoji 5, which is brought into contact with the summing bowl 13 of the outdoor shoji 6 when the shoji 5, 6 is closed. Reference numeral 23 denotes an airtight material provided on the summing bowl 13 of the outdoor shoji 6, which is brought into contact with the summing bowl 8 of the indoor shoji 5 when the shoji 5, 6 is closed. Numerals 24 and 25 are smoke smokes formed on the opposing surfaces of the summons 8 and 13, respectively. In the state where the shojis 5 and 6 are closed, the smoke smokes 24 and 25 are the surfaces on the other side (框 8, 13 and the opposite surface of the 13 opposing surfaces).

Reference numeral 27 denotes a heating foam material provided on the surface of the summing bowl 8 of the indoor shoji 5 facing the summing bowl 13 of the outdoor shoji 6. In order to attach this heating foam material 27 to the summon bowl 8, an attachment groove 28 for the heating foam material 27 is provided over the entire length of the summing bowl 8 (see FIG. 1). The heated foam material 27 is foamed by heating when a fire occurs. The mounting groove 28 is recessed from the smoke refrigeration 25 toward the indoor side of the indoor side of the smoke fold 25 of the indoor shoji, and is formed in a shape in which both sides are bent into a substantially U-shaped cross section. The heating foam material 27 is attached over the entire length of the summon bowl 8 by fitting both sides thereof into the U-shaped bent portions on both sides of the attachment groove 28. Accordingly, the heating foam material 27 can be attached in a state where the heating foam material 27 is securely held by the attachment groove 28 without protruding from the outdoor side surface of the summon bowl 8.

  In this configuration, when the heating foam material 27 foams in the event of a fire, as shown in FIG. 3, the gap between the summon bowls 8 and 13 is filled with the foam 27a. In particular, when a fire breaks out from the indoor side, the summing bowl 8 of the indoor shoji 5 is heated prior to the summing bowl 13 of the outdoor shoji 6, so the heating foam provided on the summing bowl 8 of the indoor shoji 5 The material 27 foams early, and the gap between the summons 8 and 13 is closed by the foam 27a. For this reason, it is prevented that hot air and a flame from between the summons 8 and 13 of the indoor / outdoor shoji 5 and 6 are ejected to the outdoor side, and the spread of fire is prevented. For this reason, even when a non-fireproof crescent is used as the crescent 17, an improvement in fireproofing by preventing fire spread can be achieved.

  In addition, in the case where the smoke returns 24 and 25 are provided in the summon bowls 8 and 13, respectively, as in this embodiment, the gap between the summon bowls 8 and 13 is filled with the foam 27a. As shown by the arrow Y2, a force is generated that separates the summons 8 and 13 so that the smoke return 24 and 25 formed on the inner and outer summits 8 and 13 are in pressure contact with each other. As a result, the frictional resistance between the smoke returns 24 and 25 is increased, and the frictional resistance generated between the foam 27a and the summoning basket 13 is added to the frictional resistance. , 13 generates a large frictional resistance, making it difficult to open the shoji. For this reason, the fire spread preventing effect is further improved, and fire resistance is improved. That is, even if the crescent 17 is melted by the heat from the fire, it is possible to maintain the effect of preventing the spread of fire.

  Here, it is preferable that the heated foam material 27 is foamed before the crescent 17 melts in the event of a fire. Thus, in order to quickly foam the heated foam material 27, it is preferable to use a heated foam material that foams at a relatively low temperature, and for example, a material having a foaming temperature of 250 ° C. or lower, for example, based on an epoxy resin is used. Is preferred. If the foaming temperature is 250 ° C. or lower, it has been confirmed that the fired foam 27 can be foamed in 6 to 7 minutes in a fire experiment in which fire is ignited indoors.

  If such a heated foam material is used, foaming is more reliably performed before the crescent 17 is melted, and the space between the summoning tubs 8 and 13 is quickly closed with the foam 27a. Thus, the summons 8 and 13 can be maintained in a state where they are not separated from each other.

  FIG. 4 shows another embodiment of the fire prevention structure for a window according to the present invention. In addition to the summing bowl 8 for the indoor shoji 5, the summing bowl for the indoor shoji 5 in the summing bowl 13 for the outdoor shoji 6. The heating foam material 30 is also provided over the almost entire length of the summoning bowl 13 on the surface facing 8. Also in this embodiment, the heating foam 30 is fitted into the mounting groove 31 provided in the summoning bowl 13 and attached.

  FIG. 5 shows a state in which the heated foam materials 27 and 30 expand and expand when the fire breaks out, and the gaps between the summons 8 and 13 are closed as foams 27a and 30a. According to this embodiment, the foam 27a, 30a can be filled in a large amount and in a wide range in the gap between the inner and outer summons 8, 13, and the fire resistance can be further improved. Further, in the configuration in which the smoke smokers 24 and 25 are engaged with each other when the shoji 5 and 6 are closed, the force (in the arrow Y2) that presses the summons 8 and 13 with the foams 27a and 30a when a fire occurs. Since the frictional resistance between the foams 27a and 30a and the summons 13 and 8 is increased and the frictional resistance between the inner and outer smoke refrigerations 24 and 25 is also increased, the spread of fire is further prevented. Increases effectiveness and improves fire protection.

  In the above embodiment, an example in which the fire prevention structure of the present invention is applied to the sliding window has been shown. However, the present invention can also be applied to the raising and lowering window as shown in the longitudinal sectional view of FIG. . In FIG. 6, 33 is an indoor shoji, and 34 is an outdoor shoji. Numeral 35 is a summon bowl serving as the upper arm of the indoor shoji 33, and numeral 36 is a summon bowl serving as the lower arm of the outdoor shoji 34.

  Reference numeral 37 denotes a glass panel (multi-layer panel) of the indoor side shoji 33 composed of a netted glass panel 37a and a netless glass panel 37b. Reference numeral 38 denotes a glazing channel for incorporating the glass panel 37 into the summon bowl 35. Reference numeral 39 denotes a glass panel (multi-layer panel) of the outdoor shoji 34 composed of a netted glass panel 39a and a netless glass panel 39b. Reference numerals 40 and 41 denote beats for incorporating the glass panel 39 into the summon bowl 36.

  In the indoor shoji 33, 35a is a resin extruded shape that is combined so as to cover a surface other than the outdoor surface of the summon bowl 35 through an air layer in order to improve heat insulation. Reference numeral 44 denotes a crescent attached to the summon bowl 35. Reference numeral 45 denotes a receiving bracket attached to the summing rod 36 of the outdoor shoji 34 in order to lock the hook 44 a of the crescent 44.

  Reference numerals 46 and 47 denote airtight materials attached to the summing bowl 35 of the indoor shoji 33, which are brought into contact with the summing bowl 36 of the outdoor shoji 34 when the shoji 33 and 34 are closed. Reference numeral 48 denotes an airtight material attached to the summing rod 36 of the outdoor shoji 34, which is brought into contact with the summing rod 35 of the indoor shoji 33 when the shoji 33, 34 is closed. 50 and 51 are smoke returns formed on the opposing surfaces of the summoning bowls 35 and 36, respectively, and the smoke return 50 and 51 face the other side of the opponent when the shoji 33 and 34 are closed. To be engaged.

  Reference numeral 52 denotes a heating foam material provided on a surface of the summing cage 35 of the indoor shoji 33 that faces the summing cage 36 of the outdoor shoji 34. The heated foaming material 52 is attached to the summing bowl 35 over the entire length of the summing bowl 35 by bonding or a fixing tool such as a screw (not shown). The heating foam material 52 may be attached by providing a mounting groove in the summoning bowl 35 and fitting the heating foam material 52 into the mounting groove, as in the above embodiment.

  As shown in the figure, in the state where the shojis 33 and 34 are closed so that the summoning bowls 35 and 36 face each other, the heating foam material 52 is connected to the airtight material 46 attached to the summing bowl 35 of the indoor shoji 33. The outdoor shoji 34 is configured so as to be positioned between the airtight material 48 attached to the summoning cage 36.

  The raising / lowering window is opened by raising the indoor side shoddle 33 or lowering the outdoor side shoddle 34, and in the closed state, the hook 44 a of the crescent 44 is engaged with the metal fitting 45.

  Also in this raising and lowering window, in the event of a fire, the heating foam material 52 foams and closes the gap between the sump bars 35 and 36, and the smoke return 50 and 51 are pressed against each other due to the expansion of the foam. Thus, the frictional resistance is increased, and the frictional resistance between the foam and the summoning rod 36 is also added to prevent the movement of the shoji 33 and 34 in the opening direction. Therefore, even if the crescent 44 is melted, the shoji 33 and 34 are closed. The state can be maintained and fire resistance can be improved.

  Further, as in this embodiment, by providing the heating foam material 52 on the summing bowl 35 of the indoor shoji 33, the heating foam material 52 quickly foams when the fire breaks out from the indoor side, and the crescent 44 melts. The posture which maintains the closed state of the shoji 33 and 34 can be established previously.

  Further, in this embodiment, since the heating foam material 52 is interposed between the upper and lower airtight materials 46, 48 in the closed state of the shoji 33, 34, the foam is not dropped downward during foaming. It can be closed and the foam can be filled between the summon baskets 35 and 36 in an efficient state.

  Also in the raising and lowering window as shown in FIG. 6, heating foam is provided not only on the summing bowl 35 of the indoor side shoji 33 but also on the surface facing the summing bowl 35 of the summing bowl 36 of the outdoor side shoji 34. Also good. Thus, if the foaming material is also provided in the summing bowl 36 of the outdoor shoji 34, the gap between the summing bowls 35 and 36 can be closed by a larger amount and a wide range of foams, and the smoke return 50 , 51 and the frictional resistance between the foam and the sump 35, 36 are further increased, so that the fire resistance is further improved.

  As described above, the present invention has been described with reference to the embodiment. However, when the present invention is implemented, various modifications are made to the specific structure of the window frame and the shoji, the mounting structure of the heating foam material, and the like within the scope of the present invention. Can be added.

1: window frame, 2: vertical frame, 3: upper frame, 4: lower frame, 5: indoor shoji, 6: outdoor shoji, 7: vertical coffin, 8: summoning coffin, 9: upper coffin, 10: Lower arm, 11: Glass panel, 12: Vertical arm, 13: Summoning arm, 14: Upper arm, 15: Lower arm, 16: Glass panel, 17: Crescent, 18: Mounting screw, 19: Back plate, 20: 24, 25: smoke return, 27: heated foam material, 27a: foam, 28: mounting groove, 30: heated foam material, 30a: foam, 31: mounting groove, 33: indoor shoji, 34: Outdoor shoji, 35, 36: Summoning bowl, 37, 39: Glass panel, 44: Crescent, 45: Bracket, 50, 51: Smoke return, 52: Heated foam

Claims (4)

In the fire protection structure of windows configured as sliding windows or raising and lowering windows,
Each of the outdoor shoji and indoor shoji summons has a smoke return that crosses so that the back sides of the other party face each other when the shoji is closed,
In calling combined stile of the indoor side shoji, the surface facing the calling mating stile of the outdoor side shoji, recessed into the indoor side from the outdoor side of the smoke-back of the indoor side shoji, songs on both sides is approximately C-shaped cross section With a mounting groove formed,
The mounting groove, the heat-foamable material for closing the gap between the mating stile each other callings and foamed by heating, and characterized in that attached by fitting the both sides in the song formation portions of both sides of the mounting groove Fire-proof structure of the window to play. In the fire prevention structure of the window according to claim 1 ,
And characterized in that the calling combined stile of the outdoor side shoji, heated foam for closing the gap between the mating stile each other callings and foamed by also heating the opposed surfaces of the calling mating stile of the indoor side sash is provided The fire protection structure of the window that does In the fire prevention structure of the window of Claim 1 or 2 ,
The heat-foamable material, fire structure of the window, wherein the foaming temperature is 250 ° C. or less. In the fire protection structure of windows configured as sliding windows or raising and lowering windows,
A heating foam material that foams by heating and closes the gap between the summons on the opposite side of the summit screen of the outdoor shojis in the summit screen of the indoor shoji,
Fire protection structure of the window, characterized in that the callings mating stile of the indoor side sash, non-fire resistant crescent is attached.

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