JP4229286B2 - Resin window - Google Patents

Description

  The present invention relates to a resin window in which a resin shoji is attached to a resin window frame so as to be freely opened and closed.

Conventionally, a plastic window frame in which the upper frame, the lower frame, and the left and right vertical frames of the resin profile are connected in a square shape, and the upper, lower and left and vertical vertical frames of the resin profile are connected in a rectangular shape. Various types of resin windows have been known in which resin shojis fitted with glass are mounted in the assembly so as to be freely opened and closed.
As the resin shape of the above-mentioned resin window, those using mainly vinyl chloride resin are known, so that the resin shape material softens or burns down in the event of a fire, and the resin shoji drops or the glass drops off. It does not become a fire window.

Various resin windows have been disclosed in which this problem has been solved to provide a fireproof window.
For example, in order to satisfy fire prevention standards using a vinyl chloride resin, a first one containing a large amount of inorganic filler is disclosed in Patent Document 1, and a second one using a glass fiber reinforced resin is disclosed in Patent Document 2. A third disclosed is disclosed in Patent Document 3 in which a mold steel is inserted into a hollow portion of a shape member, and a combustion sintered material that is foamed and carbonized is filled in the hollow portion, and a sandwiching member is rotated around the glass. Japanese Patent Application Laid-Open No. 2004-26853 discloses a fourth example in which an inflatable incombustible material is interposed.

JP 62-80042 A Japanese Patent No. 3213597 Japanese Patent Publication No. 6-89622 Japanese Patent No. 2788167

When the amount of the inorganic filler is increased as in the first example, the inorganic filler remains by combustion and forms a film, so that the shape as a window remains. Further, when the non-combustible material is filled in the hollow portion of the resin shape like the third one, the shape as the window can be maintained even if the shape of the outer shell is lost. However, even if it keeps its shape, it does not have the power to support the glass, and the shoji falls off, making it difficult to meet the fire protection standards. The same applies to the second one.
Since the 4th thing mentioned above is a window provided only with the resin-made shoji, it is not disclosed at all about preventing the resin-made shoji from dropping from the resin-made window frame.

  An object of the present invention is to prevent a resin shoji from falling off in a fire in a resin window in which a resin shoji is attached to a resin window frame so as to be freely opened and closed.

The present invention is a resin window frame having an upper frame, a lower frame, and left and right vertical frames of a resin shape, and a resin shoji having upper and lower ridges and left and right vertical frames of a resin shape. A resin window,
Metal reinforcements are provided on the upper and lower saddles and left and right vertical fences of the resin shoji, and the metal reinforcements are connected four times around the corner by connecting the adjacent vertical and horizontal metal reinforcements with corner fittings. And
A mounting bracket is attached to the metal reinforcement provided on the upper frame of the resin window frame, and a support fitting is attached to the metal reinforcement provided on the upper arm of the resin shoji,
The resin window is characterized in that the resin shoji is suspended and supported by a support metal fitting and a receiving metal fitting when the resin shoji is in a closed state and the ridges of the resin shoji are softened or burned out.

In the present invention, at least one of the metal reinforcing material and the corner metal fitting, the metal reinforcing material and the receiving metal fitting, the metal reinforcing material and the supporting metal fitting, and the metal reinforcing materials is in contact with the front and back surfaces of a part of the resin shape, respectively, with screws. Concatenated,
It is preferable that the parts connected by the screws are in metal contact with each other.

  If it does in this way, even if the resin shape material is softened or burnt down in the event of a fire, it is possible to maintain a firmly connected state.

  In order to perform the above-mentioned, it is necessary to form a discontinuous portion in the resin shape, draw at least one of the portions to be connected by screws, and the portions to be connected by the screws are in metal contact at the discontinuous portions. preferable.

  If it does in this way, it can connect only by screwing a screw and the connection operation is easy.

  The resin profile used in the present invention is preferably made of a foamable resin, and the heated surface side is foamed and carbonized by the heat of the flame to form a flame barrier layer.

  With this resin shape, it is possible to suppress heat transfer to the non-heated surface and protect the resin on the non-heated surface side.

  The resin profile preferably contains a halogen element in a foamable resin.

  By containing a halogen element in this way, it is effective for flame retardancy.

  The aforementioned foamable resin may be a vinyl chloride resin. In this way, it is effective for flame retardancy without adding a halogen compound (element). Moreover, carbonization tends to occur, and a foamed carbonized layer is formed.

As described above, when a vinyl chloride resin is used, it is preferable to include a polyol as a carbonizing agent.
More preferably, it includes a polyol and a phosphorous acid compound as a carbonizing agent.

  According to the present invention, when each kite is softened or burnt down in the event of a fire, the metal reinforcing material provided on each kite is connected by the corner metal fittings and is continuously connected for four rounds, so that the shape as a shoji is maintained and supported. Since the shoji is suspended and supported by the metal fitting and the receiving metal fitting, the resin shoji does not fall off in the event of a fire in the resin window in which the resin shoji is attached to the resin window frame so as to be opened and closed.

As shown in FIG. 1, a resin window 10 is attached to a resin window frame 1 so as to be freely opened and closed to form a resin window.
The resin window frame 1 has an upper frame 2, a lower frame 3 and left and right vertical frames 4, 4 connected in a square shape. The upper frame 2, the lower frame 3, and the left and right vertical frames 4, 4 are resin-shaped members and are welded by abutting each corner. Each resin profile has the same cross-sectional shape.
The upper frame 2, the lower frame 3, and the left and right vertical frames 4 are provided with a metal reinforcing material 5 in the longitudinal direction, and the metal reinforcing material 5 does not exist at corner portions thereof.
The upper frame 2, the lower frame 3, and the left and right vertical frames 4 are fixedly attached to the building housing side with a fixing tool (not shown) through which a metal reinforcing material 5 is inserted.

The resin shoji 10 has a glass 15 mounted in a cage assembly 14 in which an upper collar 11, a lower collar 12, and left and right vertical collars 13 are connected in a square shape.
The upper rod 11, the lower rod 12, and the vertical rod 13 are resin-shaped members, and are welded by abutting each corner portion. Each resin profile has the same cross-sectional shape.
Since the metal reinforcing material 16 is provided in the longitudinal direction on the upper iron rod 11, the lower iron rod 12, and the left and right vertical iron rods 13, the metal reinforcing material 16 does not exist in the corner portion. The metal reinforcements 16 are continuous with the corner metal fittings 17 and the metal reinforcements 16 are continued four times.
The one vertical frame 4 and one vertical rod 13 are connected by a hinge 6 so as to be freely opened and closed, and a handle 7 is attached to the other vertical rod 13.

A receiving bracket 20 is attached to the upper frame 2. The metal fitting 20 is fixed to the metal reinforcing material 5.
A support fitting 30 is attached to the upper collar 11. The support fitting 30 is fixed to the metal reinforcing material 16.
When the resin shoji 10 is in a closed state, and the heel of the resin shoji 10 is softened or burned out, the support fitting 30 is suspended and supported by the receiving fitting 20 so as not to fall, and the resin shoji 10 is closed. When released from the support bracket 30, the support bracket 30 is detached from the receiving bracket 20.

Thus, when the fire is generated in the closed state of the shoji, when the firewood is softened or burned out, the metal reinforcement 16 provided on the upper firewood 11, the lower firewood 12, and the left and right vertical firewood 13 is the corner metal fitting 17. Because it is connected and maintains a rectangular frame shape, the shape as a shoji remains.
Further, since the metal reinforcement 16 provided on the upper collar 11 is supported by the support metal 30 and the metal reinforcement 5 provided on the upper frame 2 by the support metal 20, the resin shoji 10 is supported by being suspended and dropped off. There is nothing to do.

  When the hinge 6 is made of aluminum or the like and melts in the event of a fire, it is preferable to provide a pair of the receiving bracket 20 and the support bracket 30 apart from each other on the left and right. One on the opposite side of the hinge 6 may be provided.

Next, the specific shape of each member will be described.
The upper frame 2, the lower frame 3, a metal reinforcing member 5 provided on the vertical frame 4, FIG. 2, the hollow portion 2a as shown in FIG. 3, 3a, the first metal reinforcements provided inside 4a 5 ₁ and , in-plane direction of the outer surface 2b, 3b, comprises a second metal reinforcement 5 ₂ provided in 4b, both are fixed with screws 8.
This screw 8 is screwed from the _second metal reinforcing member 52 to the _first metal reinforcing member 51.
The second metal reinforcement 5 ₂ mounting piece 2c the fastener 9 from, 3c, fixed upper frame 2 by fixing to building structures not shown inserted through 4c, the lower frame 3, the vertical frame 4 in building structures Are installed.

Since this be the case, the upper frame 2 in a fire, the lower frame 3, the vertical frame 4 is softened, or burned and second metal reinforcing member 5 ₂ also is secured to the building skeleton, its second metal reinforcement 5 since ₂ first metal reinforcement 5 ₁ is connected, it is attached to the building structures while maintaining the shape of the window frame.

As shown in FIGS. 2 and 3, the metal reinforcement 16 provided on the upper rod 11, the lower rod 12, and the vertical rod 13 includes first hollow portions 11 a, 12 a, 13 a, second hollow portions 11 b, 12 b, comprising a first metal reinforcing member 16 _1, and ₂ second metal reinforcing member 16 provided respectively 13b, plane direction lateral surfaces 11c, 12c, the third metal reinforcement 16 ₃ provided 13c, the first 3 of the metal reinforcing member 16 ₃ are fixed in the first and second metal reinforcing member ₁₆ 1, 16 ₂ each screw 18.
The corner fittings 17 are provided on the inner side surfaces 11 d, 12 d, 13 d in the in-plane direction of each ridge, and are fixed to the _first metal reinforcing member 161 with screws 19.
Incidentally, each stile is provided with ledge 11e, 12e, and 13e, the glass 15 is provided after connecting the first metal reinforcements 16 ₁ aspect corner fitting 17 described above, then the ledge 11e, 12e, 13e Install.

Thus, when each firewood is softened or burned out in the event of a fire, each metal reinforcing member 16 remains connected to the square shape by the corner metal fitting 17 and maintains the shape as a shoji.
At this time, in order to prevent the glass 15 from falling off, a U-shaped metal frame member is fitted to and supported by the peripheral portion of the glass 15 described above, and the metal frame member is fixed to the metal reinforcing member 16 with screws. It ’s fine.

Next, the receiving metal 20 and the support metal 30 will be described.
As shown in FIG. 4, the receiving bracket 20 includes a mounting portion 21 and a receiving portion 22. The mounting portion 21 is in contact with the in-plane inner surface 2d of the upper frame 2 as shown in FIG. screwed into the metal reinforcing member 5 ₁ is mounted.
The receiving portion 22 of the receiving member 20 is separated from the inner surface 2 d in the in-plane direction of the upper frame 2.
The receiving metal fitting 20 shown in FIG. 4 is formed into a substantially U shape by processing a single plate material.

As shown in FIG. 4, the support fitting 30 includes an attachment portion 31 and a hook portion 32, the attachment portion 31 is in contact with the in-plane outer side surface 11 c of the upper collar 11, and the screw 33 is connected to the first metal reinforcing material 16. ₁ is screwed together.
In addition, if the support metal fitting 30 interferes with the _third metal reinforcing member 163, the portion may be cut out.
The hook 32 is directed upward and the resin shoji 10 is closed, so that the hook 32 enters between the inner surface 2d in the in-plane direction of the upper frame 2 and the receiving portion 22. .

As shown in FIGS. 5A, 5B, and 5C, the receiving metal 20 and the support metal 30 have a substantially U-shaped cross section with the mounting part 21, the vertical part 24, and the receiving part 22. Also good.
5A, the receiving portion 22 and the hooking portion 32 are parallel to each other. However, as shown in FIG. 5B, the receiving portion 22 may be inclined upward and the hooking portion 32 may be inclined downward. As shown in FIG. 5C, the tip end portion 22 a of the receiving portion 22 faces downward, the tip end portion 32 a of the hooking portion 32 faces upward, and the tip end portion 22 a is positioned slightly below the receiving portion 22. 32a may be used as a guide.

  6 and 7, a hanging piece 25 is provided on the mounting portion 21 as shown in FIGS. 6 and 7, an opening 26 is formed in the hanging piece 25 to form a receiving portion 22, and a hooking portion 32 of the support fitting 30 is formed. You may make it insert in the opening part 26. FIG.

As mentioned above, when connecting metal reinforcements to each other, metal reinforcements and corner metal fittings with screws, or connecting metal reinforcements to receiving metal fittings and support metal fittings with screws, they are the surface of a part of the resin profile. Since it is in contact with the back surface, it is separated by a part of its wall thickness.
For this reason, when the resin profile is softened or burned out in the event of a fire, the metal reinforcements, metal reinforcements and corner metal fittings, metal reinforcements and metal fittings, metal reinforcements and support metal fittings are only the aforementioned wall thickness. May be rattled.

In order to prevent this, when connecting with a screw in contact with a part of the front and back surfaces of the resin shape member, they are in metal contact with each other and connected with a screw so that no gap is formed between both members.
For example, in the case of connecting the first metal reinforcing member 16 ₁ a corner fitting 17 of the bottom rail 12 in FIG. 2 with screws 19, shown in FIG. 8 (a), (b) , (c), (d) In this way, a discontinuous portion 40 such as a hole or a notch is formed in a part of the lower collar 12, and the corner fitting 17 is in contact with the surface 41 (inner surface 12c in the in-plane direction) of the lower collar 12, and the rear surface 42 ( a first metal reinforcing member 16 ₁ in contact with the inner surface) of the first hollow portion 12a.

Then, the contact discontinuities 40 and squeeze the opposing portion 17a processed first metal stiffener 16 ₁ described above in the corner fittings 17 as shown in FIG. 8 (a), first the screw 19 from the hole 17b 1 screwed into the screw hole ₁₆ 1 -a metal stiffener 16 _1, both connecting to metal contact.
The diaphragm portions 17a of the corner fittings 17 (hole 17b of the rim) and the first metal reinforcements 16 ₁ a portion ₁₆ 1 -b (peripheral screw holes ₁₆ 1 -a) as shown in FIG. 8 (b) The metal is processed and brought into metal contact, and the screw 19 is screwed and connected.
Further, as shown in FIG. 8 (c), a portion 17a of the corner fitting 17 is drawn into a funnel shape in accordance with the dish-shaped head of the screw 19, or drawn into a circular concave shape as shown in FIG. 8 (d). Process.

Foregoing that the coupling between the metal reinforcing member, for example, coupling of the second metal reinforcing member 16 ₂ and the third metal stiffener 16 ₃ in FIG. 2, the coupling of the receiving metal 20 and the metal reinforcing member 5, the support bracket 30 Of course, the present invention can also be applied to the connection of the metal reinforcing material 16.

In the above-described embodiment, the resin window 10 in which the resin shoji 10 is attached to be freely opened and closed by the hinge 6 has been described. However, the present invention is not limited to this, and the resin shoji 10 can be moved in the in-plane direction of the resin window frame 1. Needless to say, the present invention can also be applied to a resin window attached to the housing.
For example, as shown in FIGS. 9 and 10, the present invention can also be applied to a resin sliding window in which a resin shoji 10 is attached to the indoor side and the outdoor side of the resin window frame 1 so as to be movable in the in-plane direction.

  In this case, as shown in FIGS. 5A, 5B, and 5C, the receiving metal 20 and the support metal 30 are shaped so that the support metal 30 can move in the in-plane direction with respect to the metal receiving metal 20. Those are preferred.

Further, in FIG. 10, the receiving metal fitting 20 can be attached to the upper part of the vertical frame 4 and the support metal fitting 30 can be attached to the upper part of the vertical fence (door-to-door fence) 13.
In this case, the receiving metal 20 and the support metal 30 preferably have a shape that fits in the in-plane direction to each other at the shoji closed end.
For example, as shown in FIG. 11, it is assumed that the pin 20 is fixed to the mounting portion 21 of the receiving metal 20, and the mounting portion 21 is in contact with the inner surface in the in-plane direction of the vertical frame 4 and screwed into the metal reinforcing material 5. Then, the pin 27 is directed inward in the in-plane direction.
Further, a hole 34 into which the pin 27 is fitted is formed in the support fitting 30, the hole 34 is used as a hook portion 32, the attachment portion 31 is in contact with the outer surface in the in-plane direction of the vertical rod 13, and the metal reinforcement 16 The holes 34 are fixedly attached with screws which are screwed to the pins 27, and the holes 34 are opposed to the pins 27.

By doing in this way, when the resin shoji 10 moves to the closed end, the hole 34 and the pin 27 are fitted, and the upper part of the vertical rod 13 can be suspended and supported near the upper part of the vertical frame 4.
Also in this case, the resin frame 10 is suspended and supported by the metal fittings 20 and the support metal fittings 30 on the upper frame 11 near the summit 11 and the upper frame 2.

Next, the resin profile used for the resin window of the present invention will be described.
The state when one surface 51 of the resin profile 50 shown in FIG. 12A is heated is shown in FIG.
The resin on one heated surface 51 (heating surface) was foamed and carbonized. There is no change in the resin on the other surface 52 (non-heated surface), indicating that heat has not reached the non-heated surface. Further, there was a carbonized film 53 on the heating surface, and there was a dense foamed carbonized layer 54 immediately below. Below that, there was a discolored layer 55 that was not yet carbonized, and this layer was a large bubble. These layers then serve to block the flame.

If the state at the time of heating of the resin shape member 50 is as described above, it is possible to prevent a gap from being generated between the frame and the shoji at the time of a fire and to prevent the flame from reaching the non-heated surface.
That is, the resin shaped material of the present invention can be foamed and carbonized by the heat of the flame on the heating surface side to form a flame barrier layer, suppress heat transfer to the non-heating surface, and protect the resin on the non-heating surface.

Next, the details will be described.
In order to protect the resin on the non-heated surface, it is essential to make the resin material flame-retardant, but it is not sufficient. This is because, in the flame-shielding and quasi-flame-shielding tests as the fire prevention test, the temperature reaches 781 ° C. after heating for 20 minutes, and exceeds the decomposition temperature of the resin material. At such a high temperature, the non-heated surface also reaches the decomposition temperature of the resin, and the resin on the non-heated surface cannot be left. Therefore, it is necessary to promote carbonization of the resin on the heating surface, further foam and insulate, and reduce heat transfer to the non-heating surface.
In order to make it flame-retardant, it is effective to add a halogen element to the resin material. The halogen element combines with active oxygen at the time of combustion, inhibits the reaction between oxygen and combustible gas, and reduces heat generation. Therefore, the resin is in a steamed state, and carbonization is promoted. In addition, foaming occurs inside the resin because decomposition gas is generated depending on the temperature. Therefore, even if no foaming agent is added, the resin is foamed and a foamed carbonized layer is formed on the surface side, which functions as a fireproof heat insulating layer.

  The resin shape of the present invention is characterized in that the resin shape itself is foam carbonized.

  In the prior art, a method of closing a gap around which a flame wraps by attaching a nonflammable inflatable material such as expansive graphite to a metal shape of a metal window has been performed. In the present invention, the resin shape itself is used as an element that foams and carbonizes to prevent the generation of a gap and the temperature rise of the non-heated surface. In the case of a metal window, the function as a window is ensured by a metal shape, and it was necessary to add an inflatable incombustible material for fire prevention. In the present invention, the resin shape itself has a function of foam carbonization, and the shape functioning as a strength member during normal use has a fireproof function. Also in the conventional resin-made window, the inflatable incombustible material is inserted into the window frame member hollow portion, attached to a place where a gap is expected to be generated, and the like. In the present invention, the resin shape itself foams and decomposes by heat to form a non-combustible foam. Therefore, it is not necessary to use a non-combustible expansion material, or even if used, a smaller amount than in the past. Use it. Further, the expansive incombustible material is fragile and lacks water resistance and wear resistance, so that it has been difficult to use it on exposed surfaces, contact surfaces, and human touch surfaces. According to the present invention, it is possible to form a heat-insulating layer that has been foamed and carbonized also on these surfaces.

Addition of halogen is the most effective for making olefin resin flame-retardant. In order to contain a halogen element in the resin, a method of adding a halogen-based flame retardant is common. Examples of halogen-based flame retardants include hexabromobiphenyl, hexabromobenzene, pentabromodiphenyl ether, decabromodiphenyl oxide, ethylene bispentabromobenzene, tris (2,3-dibromopropyl) isocyanate, 2,2-bis (4- Hydroxyethoxy-3,5-dibromophenyl) propane, 2,2-bis (4-hydroxy-3,5-dibromophenyl) propane, brominated epoxy resin, brominated polystyrene, chlorinated paraffin and the like.
Furthermore, as inorganic flame retardants, aluminum hydroxide, magnesium hydroxide, potassium hydroxide, calcium hydroxide, antimony trioxide, calcium phosphate, zircon oxide, titanium oxide, zinc oxide, magnesium oxide, magnesium carbonate, calcium carbonate, barium sulfate , Barium borate, barium metaborate, zinc metaborate, anhydrous alumina, molybdenum disulfide, clay, red phosphorus, diatomaceous earth, kaolinite, montmorillonite, hydrotalcite, talc, silica, white carbon, celite, asbestos, lithopone, etc. It is possible to do. When these are blended in an amount of 100 parts by weight or more, carbonized resin and residual inorganic matter remain, and the flame can be shut off.

However, the window frame material is required to have high impact resistance. In general, when the amount of filler increases, the impact strength decreases, so materials using these inorganic flame retardants are not suitable for window frame members.

  On the other hand, vinyl chloride resin has chlorine in its molecular structure, and it is not necessary to add a halogen compound. Furthermore, the decomposition of vinyl chloride is preceded by the release of hydrochloric acid, followed by a double bond. For this reason, carbonization is likely to occur as compared with general olefin resins, and a part of the resin is left carbonized to form a foamed carbonized layer. Even if no foaming agent is used, foaming occurs because decomposition gas is generated from the inside. In order to increase the expansion ratio, azodicarbonamide (ADCA), N, N′-dinitrosopentamethylenetetramine (DPT), manganese salt of 5,5′-bis-1H tetrazole, or the like can be used. In order to suppress foaming in the welding step of the resin shape, it is preferable to use these high-temperature foaming agents.

  Furthermore, a polyol can be added to promote carbonization and increase the amount of carbide. The polyol functions as a carbonizing agent and carbonizes under appropriate conditions to form a film. In particular, when a phosphoric acid compound or a phosphorous acid compound is used in combination, it is carbonized efficiently.

As a carbonizing agent, pentaerythritol and a dimer or higher condensate, a polyol such as cellulose, maltose, glucose, arabinose, ethylene glycol, propylene glycol, polyethylene glycol, sorbitol, dextrin, an ethylene / vinyl alcohol copolymer, and an ester compound thereof. Melamine and derivatives thereof, guanamine and derivatives thereof, isocyanuric acid and derivatives thereof, triazine derivatives such as tris (4-hydroxyphenyl) isocyanurate, starch, casein, wood flour and the like. These can be used alone or in combination.
In particular, polyol is an important factor in preventing initial coloration when a calcium-zinc stabilizer is used. Specific examples of the polyol as the stabilizer are as follows. Pentaerythritol, dipentaerythritol, tripentaerythritol, bistrimethylolpropane, bistrimethylolethane, trismethylolpropane, inosite, polyvinyl alcohol, sorbitol, maltite, isomaltite, lactite, ricazine, mannitol, lactose, leuclose, tris (hydroxyethyl) Examples include isocyanurate, paratinite, tetramethylolcyclohexanol, tetramethylolcyclopentanol, tetramethylolcyclopyranol, glycerol, diglycerol, polyglycerol and the like. Dipentaerythritol and tripentaerythritol are suitable as the carbonizing agent, and pentaerythritol, dipentaerythritol, glycerol, and sorbitol are typically used as the stabilizer for the calcium-zinc stabilizer. A combination of these polyols can be used. Furthermore, these polyols can also be used as carbonizing agents.
The phosphite compound that promotes the carbonization of polyol is also useful as an antioxidant and is a suitable stabilizer for preventing coloration. Specific examples include trioctyl phosphite, tridecyl phosphite, tridodecyl phosphite, tritridecyl phosphite, tripentadecyl phosphite, trioleyl phosphite, tristearyl phosphite, triphenyl phosphite, tricresyl phosphite. Phyto, trisnonyl phenyl phosphite, phenyl dioctyl phosphite, phenyl didecyl phosphite, phenyl didodecyl phosphite, phenyl ditridecyl phosphite, phenyl ditetradecyl phosphite, phenyl dipentadecyl phosphite, octyl diphenyl phosphite, Decyl diphenyl phosphite, undecyl diphenyl phosphite, dodecyl diphenyl phosphite, tridecyl diphenyl phosphite, tetradecyl di Phenyl phosphite, pentadecyl diphenyl phosphite, oleyl diphenyl phosphite, 9,10-dihydro-9-oxa 10-phosphaphenanthrene-10-oxide, 10- (3,5-di-t-butyl-4-hydroxybenzyl) -9,10-dihydro-9-oxa 10-phosphaphenanthrene-10-oxide, 10-decyloxy 9,10-dihydro-9-oxa 10-phosphaphenanthrene, tris (2,4-di-t-butylphenyl) phosphite , Cyclic neopentanetetrayl bis (2,4-di-t-butyl) phosphite, cyclic neopentane tetrayl bis (2,6-di-t-butyl 4-methylphenyl) phosphite, 2,2-methylene bis (4,6-di-tert-butylpheny ) Octyl phosphite. In particular, the powdered 9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide or lower phosphorous acid compound is powdery and easy to handle. These phosphorous acid compounds are also effective against vinyl chloride as a flame retardant for carbonizing polyol. In order to mix phosphorous acid with vinyl chloride, zinc used as a stabilizer may be basic zinc phosphite.

  Other antioxidants include alkylated monophenols, alkylthiomethylphenols, hydroquinones and alkylated hydroquinones, hydroxylated thiodiphenyl ethers, alkylidene bisphenols, benzyl compounds, hydroxybenzylated malonates, hydroxybenzyl-aromatic hydrocarbons, hydroxy There are benzyl-aromatic hydrocarbons and the like, and these can be used in combination.

  In the past, phosphite-based plasticizers were sometimes used for soft PVC. For example, when high flame retardancy is required, the plasticizer must be flame retardant, and phosphoric acid and phosphite have been used as the flame retardant plasticizer. However, since hard PVC has high flame retardancy, no flame retardant has been blended. In addition, phosphoric acid and phosphorous acid compounds are components that are dehydrated by a phosphoric acid compound that functions as a dehydration catalyst and form a carbonized layer on a heated fire-resistant coating film. For PVC containing no oxygen, improvement in flame retardancy by adding phosphoric acid or phosphorous acid cannot be expected. Phosphorous acid is used as an antioxidant, and unless it is used in combination with a polyol, it does not become an additive that imparts flame retardancy to hard PVC.

  The object of the present invention is to leave a foamed carbonized layer in a fire prevention test by using a polyol and a phosphorous acid compound in combination. Generally, when a flame retardant is blended with PVC, the physical properties are lowered. If both a flame retardant and a stabilizer can be used, the number of parts of the additive can be reduced, and the influence on physical properties can be reduced. The amount of polyol added is suitably 0.1 to 40 parts by weight, and 0.05 to 5 parts by weight as the phosphite compound.

  In addition, calcium compounds, zinc compounds, hydrotalcite, and β-diketone compounds are added as stabilizers. Examples of calcium compounds include higher fatty acid salts of C8 to C22 such as glycerophosphate, acetate, propionate, heptanoate, 2-ethylhexylate, stearate, 12-hydroxystearate, lactate Citrate, gluconate, sorbate, rosinate, ethyl acetoacetate, benzoate, isodecanoate, neodecanoate, naphthenate are added. The addition amount is suitably 0.01 to 2 parts by weight.

Further, as the zinc compound, for example, a higher fatty acid salt of C _{8 to} C ₂₂ such as orthophosphate, heptanoate, 2-ethylhexylate, stearate, rosinate, dibutyldithiocarbamate, salicylate, Isodecanoic acid, neodecanoate, naphthenate and the like are added. The addition amount is suitably 0.01 to 2 parts by weight.

  Furthermore, 0.01 to 5 parts by weight of hydrotalcite is added. Preferably it is 0.1-1 weight part. If it exceeds 5 parts by weight, foaming occurs during welding, which is not preferable. The amount of β-diketone compound added is suitably 0.01 to 1 part by weight. Usually, calcium carbonate is further added as a filler, and titanium oxide, a processing aid and a lubricant are added as colorants.

  The resin shape foams by heat, but the heated surface side foams quickly, and the foaming on the non-heated surface side is delayed. For this reason, the seal structure collapses at the contact portion of the shoji, and a gap is generated. Such deformation can be prevented by attaching an L-shaped bracket. Since the L-shaped bracket receives a force when foaming, it needs to be fixed to the reinforcing material.

  The extruded resin profile is cut and processed with the resin blended above, and a metal reinforcing material can be attached before or after welding. If necessary, an expansive incombustible material such as expansive graphite may be attached. Furthermore, by attaching the receiving metal 20 and the support metal 30 that connect the frame and the shoji at the top, it prevents the glass from dropping and the generation of through holes in the fire prevention test, and even on exposure to high temperatures, Can be prevented.

Examples The present invention will be described below with reference to examples, but the present invention is not limited to the examples.
Example 1
3 parts by weight of dipentaerythritol, 2 parts by weight of pentaerythritol, 0.2 part by weight of 2,2-methylenebis (4,6-di-t-butylphenyl) octyl phosphite, calcium stearate 5 parts by weight, zinc stearate 0.5 part by weight, hydrotalcite 1 part by weight, calcium carbonate 5 parts by weight, titanium oxide 4 parts by weight, acrylic processing aid 0.1 part by weight, paraffin wax 0.1 part by weight The blend with added was molded by an extruder to obtain a plate-like sample. When this was baked for 20 minutes in a furnace adjusted to 800 ° C., foamed black carbide was obtained.

Example 2
2 parts by weight of dipentaerythritol, 4 parts by weight of wood flour, 1 part by weight of tris (2,4-di-t-butylphenyl) phosphite, 0.5 part by weight of calcium stearate, zinc stearate per 100 parts by weight of PVC Extruder blended with 0.5 parts by weight, hydrotalcite 1 part by weight, calcium carbonate 5 parts by weight, titanium oxide 4 parts by weight, acrylic processing aid 0.1 part by weight, paraffin wax 0.1 part by weight To obtain a plate-like sample. When this was baked for 20 minutes in a furnace adjusted to 800 ° C., foamed black carbide was obtained.

It is a schematic front view of the resin-made windows showing the first embodiment of the present invention. It is a detailed longitudinal cross-sectional view of the resin-made windows showing the first embodiment of the present invention. 1 is a detailed cross-sectional view of a resin window showing a first embodiment of the present invention. It is a perspective view of a receiving metal fitting and a support metal fitting. It is a side view which shows the different shape of a receiving metal fitting and a support metal fitting. It is a perspective view which shows 2nd Embodiment of a receiving metal fitting and a support metal fitting. It is a side view which shows 2nd Embodiment of a receiving metal fitting and a support metal fitting. It is an expanded sectional view of the connection part of a metal reinforcement and a corner metal fitting. It is a schematic front view of the resin-made windows which shows the 2nd Embodiment of this invention. It is a schematic front view of the resin-made window which shows the 3rd Embodiment of this invention. It is a perspective view which shows 3rd Embodiment of a receiving metal fitting and a support metal fitting. It is explanatory drawing of the heating state of a resin shape.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Resin window frame, 2 ... Upper frame, 3 ... Lower frame, 4 ... Vertical frame, 5 ... Metal reinforcement, 10 ... Resin shoji, 11 ... Upper arm, 12 ... Lower arm, 13 ... Vertical arm, 14 DESCRIPTION OF SYMBOLS ... Saddle assembly, 15 ... Lath, 16 ... Metal reinforcement, 17 ... Corner metal fitting, 20 ... Reception metal fitting, 30 ... Support metal fitting, 40 ... Resin shape, 41 ... One surface (heating surface), 42 ... Other Surface (non-heated surface)

Claims (5)

Resin window with resin frame top / bottom frame and left / right vertical frame mounted on a resin window frame with resin frame upper and lower frames and left and right vertical frames. Because
Metal reinforcements are provided on the upper and lower saddles and left and right vertical fences of the resin shoji, and the metal reinforcements are connected four times around the corner by connecting the adjacent vertical and horizontal metal reinforcements with corner fittings. And
A mounting bracket is attached to the metal reinforcement provided on the upper frame of the resin window frame, and a support fitting is attached to the metal reinforcement provided on the upper arm of the resin shoji,
A resin-made window, wherein the resin-made shoji is suspended and supported by a supporting metal fitting and a receiving metal fitting when the resin-made shoji is in a closed state and the ridge of the resin-made shoji is softened or burned out. At least one of the metal reinforcing material and the corner metal fitting, the metal reinforcing material and the receiving metal fitting, the metal reinforcing material and the supporting metal fitting, and the metal reinforcing material is connected to each of the front and back surfaces of a part of the resin shape with screws.
The resin window according to claim 1, wherein the parts connected by the screws are in metal contact with each other.   3. A resin window according to claim 2, wherein a discontinuous portion is formed in the resin shape, and drawing is performed on at least one of the portions connected by screws, and the portions connected by the screws are in metal contact at the discontinuous portions.   The resin window according to any one of claims 1, 2 and 3, wherein the resin shape is made of a foamable resin, and the heating surface thereof is foamed and carbonized by the heat of the flame to form a flame barrier layer. The resin-made window according to claim 4, wherein the foamable resin contains a halogen element.

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