JP2017096013A - Building member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof sash not only capable of developing reliable fireproof performance but also capable of reducing costs.SOLUTION: A fireproof sash (an opening frame body 1 and an outer peripheral frame body 2), which is one embodiment of a building member, has sides provided with hollow parts 14A-14C extended in longitudinal directions of the sides. A metal reinforcement material 4 is inserted into each of the hollow parts 14A-14C. A thermally-expansible resin composition layer 5 is directly formed in at least a part of the reinforcement material 4.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a building member such as a fire sash or a fire door installed in an opening of a structure such as a building.

  One of the performances required for fittings such as windows, shojis, doors, doors, brans, and balustrades used in the openings of buildings such as houses is fireproofing, and fireproofing is applied to enhance fireproofing performance. ing. For example, a frame (sash) of a fitting installed in an opening of a building is equipped with a heat-expandable refractory material so that the flame does not penetrate. A metal reinforcing material in which a sheet-like heat-expandable refractory material is attached with an adhesive tape or the like is inserted into the hollow portion.

Japanese Patent No. 4691324

  Here, in order to ensure sufficient fireproofing performance with the thermally expandable refractory material, each type of reinforcing material with different size, shape, etc., has a thermal expandability with thickness, length, thermal expandability, etc. It is necessary to attach a refractory material to the reinforcement. However, when a sheet-like heat-expandable refractory material is pasted on a reinforcing material, a heat-expandable refractory material having a different thickness, length, thermal expansibility, etc., which should not be pasted, is mistakenly pasted on the reinforcing material. There is a fear. In addition, affixing the sheet-like thermally expandable refractory material to the reinforcing material also has a problem that costs are increased.

  This invention is made | formed paying attention to the said subject, and it aims at providing the building member which can express reliable fireproof performance and can reduce cost.

  The object of the present invention is a building member having a hollow portion installed in the opening of a structure and extending in the longitudinal direction inside, wherein a metal reinforcing material is inserted in the hollow portion, This is achieved by a building member in which a heat-expandable resin composition layer is formed directly on at least a part of the reinforcing material.

  The building member having the above structure can be, for example, a fire sash that supports a plate material.In this case, each side of the fire sash has the hollow part extending in the longitudinal direction, and the hollow part has The reinforcing material is inserted.

  In addition, the building member having the above configuration can be, for example, a fire door. In this case, the fire door includes a surface material and a back material, and the hollow portion is provided between the surface material and the back material. The reinforcing material is inserted into the hollow portion. When the building member is a fire door, an attachment hole for attaching a key cylinder and / or a handle is formed in the surface material and the back material, and the reinforcing material is disposed to face the surface material. A first flat plate portion and a second flat plate portion arranged to face the back material, and the first flat plate portion and the second flat plate portion have a through hole formed at a position facing the mounting hole. The thermally expandable resin composition layer is preferably formed on the reinforcing material so as to sandwich the through hole.

  Moreover, in any building member having the above-described configuration, the thermally expandable resin composition layer is cured by a putty-like resin composition containing a thermosetting resin, thermally expandable graphite, and an inorganic filler. It is preferable to form. In this case, it is preferable that the thermosetting resin is an epoxy resin.

  Further, in any building member having the above-described configuration, the thermally expandable resin composition layer may be formed by molding a resin composition containing a thermoplastic resin, thermally expandable graphite, and an inorganic filler. it can.

  According to the building member of the present invention, reliable fireproof performance can be expressed and cost can be reduced.

It is a front view of the building member (fire protection sash) concerning one embodiment of the present invention. It is sectional drawing of the principal part in alignment with the AA of FIG. It is sectional drawing of the principal part of the fireproof sash of a modification. It is a front view of the building member (fire door) which concerns on other embodiment of this invention. It is sectional drawing which follows the BB line of FIG. It is a front view of a surface material. It is a front view of the reinforcing material in which the thermally expansible resin composition layer was formed. It is a disassembled perspective view of the principal part of a fire door (a heat insulating material, a key cylinder, and a handle are abbreviate | omitting illustration).

  Embodiments of the present invention will be described below with reference to the accompanying drawings. The building member of the present invention is, for example, in an opening of a structure such as a detached house, an apartment house, a high-rise house, a high-rise building, a commercial facility, a public facility, a ship such as a passenger ship, a transport ship, a ferry It will be installed. As a building member, a sash, a door, etc. can be illustrated, for example. The sash includes an opening frame body such as a window frame and a door frame fixed to the opening of the structure, and an outer peripheral frame body that reinforces an outer peripheral edge portion of a fitting such as a window and a door. In addition, when the sash is an outer frame, the fitting itself such as a window or a door is a plate material, and when the fire sash is an opening frame, the outer frame is fixed to the fitting such as a window or a door ( The joinery including the frame is the plate material.

  FIG. 1 shows a front view of a sliding window as an embodiment of the present invention, and FIG. 2 shows a cross-sectional view of a main part taken along line AA of FIG. In this example, the building member is a fireproof sash, and as the fireproof sash, in addition to the opening frame 1 fixed to the rectangular opening of the building, the outer periphery that reinforces the outer peripheral edge of the fitting 3 such as a window or a door A frame 2 is shown. In this embodiment, the two fittings 3 are slidably attached to the opening frame 1, and the vertical rod members 22, 21 on the center side of the outer peripheral frame 2 overlap each other to form a summing unit.

  The opening frame body 1 has a rectangular shape in plan view, and is constituted by left and right vertical frame members 10 and 11 and upper and lower horizontal frame members 12 and 13, and the inside surrounded by the respective frame members 10 to 13 is an opening portion. It has become. The left and right vertical frame members 10 and 11 and the upper and lower horizontal frame members 12 and 13 form four sides of the opening frame body 1. The material of the opening frame 1 is made of a synthetic resin such as a chlorine-containing resin such as polyvinyl chloride, a polyolefin resin such as polyethylene / polypropylene, a polyester resin such as polyethylene terephthalate / polybutylene terephthalate, or the like, aluminum, stainless steel, steel, alloy Examples thereof include a metal such as aluminum and a composite of aluminum and a synthetic resin, and the material thereof is not limited.

  Each of the frame members 10 to 13 constituting the opening frame body 1 has a U-shaped cross-sectional view in which a pair of side wall portions 16 protrudes from both ends of the long main body portion 15 against which the fitting 3 abuts, and the width of the main body portion 15 is It is formed in the size which can arrange two fittings 3 in parallel. In the main body 15, two hollow portions 14A extending in the longitudinal direction are provided in a partitioned state. A hollow portion 14B extending in the longitudinal direction is also provided in the side wall portion 16. The horizontal frame members 12 and 13 are not shown, but have the same shape as the vertical frame members 10 and 11. In addition, the configuration of the opening frame 1 is not particularly limited, and the upper, lower, left, and right frame members 10 to 13 constituting the opening frame 1 are hollow portions extending along the longitudinal direction, and the longitudinal direction Any known form may be used as long as it has one or a plurality of hollow portions in a cross section orthogonal to the above.

  The outer peripheral frame body 2 has a rectangular shape in plan view, and is composed of left and right vertical rod members 20 and 21 and upper and lower horizontal rod members 22 and 23. The left and right vertical rod members 20 and 21 and the upper and lower horizontal rod members 22 and 23 form four sides of the outer peripheral frame 2. The outer frame 2 is made of synthetic resin such as chlorine-containing resin such as polyvinyl chloride, polyolefin resin such as polyethylene / polypropylene, polyester resin such as polyethylene terephthalate / polybutylene terephthalate, aluminum, stainless steel, steel, alloy Examples thereof include a metal such as a composite of aluminum and a synthetic resin, and the material is not limited.

  Each of the eaves members 20 to 23 constituting the outer peripheral frame 2 is also long and has a hollow portion 14C extending in the longitudinal direction. Note that the hollow portion 14C may be divided into a plurality of hollow portions. The joinery 3 is located at a step portion of each of the roofing materials 20 to 23 and is fixed by a rubber seal material or a sealing material 24. In addition, although illustration of the horizontal bar materials 22 and 23 is abbreviate | omitted, it is the same shape as the vertical bar materials 20 and 21. The configuration of the outer peripheral frame 2 is not particularly limited, and the upper, lower, left, and right saddle members 20 to 23 constituting the outer peripheral frame 2 are hollow portions extending along the longitudinal direction, and the longitudinal direction Any known form may be used as long as it has one or a plurality of hollow portions in a cross section orthogonal to the above.

  Each frame material 10-13 of the above-mentioned opening frame body 1 and each collar material 20-23 of the outer periphery frame body 2 can be shape | molded, for example by extrusion molding or injection molding.

  The fitting 3 closes the opening of the opening frame 1, and the outer peripheral frame 2 is fixed to the outer peripheral edge. The joinery 3 can be exemplified by windows, doors, etc., but is formed of any material such as glass, plaster, ceramic, cement, calcium silicate, pearlite, aluminum, stainless steel, steel, alloy, synthetic resin, etc. Good.

  The hollow portions 14A and 14B of the frame members 10 to 13 constituting the opening frame body 1 and / or the hollow portions 14C of the flange members 20 to 23 constituting the outer peripheral frame body 2 are made of metal along the longitudinal direction. The reinforcing material 4 is inserted. The reinforcing member 4 is inserted in a state having a large space in the hollow portions 14A, 14B, and 14C.

  The reinforcing material 4 is inserted into some or all of the hollow portions 14A, 14B, and 14C. The reinforcing material 4 may be simply inserted into the hollow portions 14, 14B, 14C as it is in accordance with the shape and size of the hollow portions 14, 14B, 14C, or the hollow portions 14, 14B, 14C using an adhesive tape or the like. You may affix on the inner surface (the wall surface of each member 10-13, 20-23 which defines hollow part 14A, 14B, 14C). The shape of the reinforcing member 4 is not particularly limited as long as it can be inserted into the hollow portions 14A, 14B, and 14C. For example, a flat plate type, an L-shape in which two flat plates are connected at right angles, and three flat plates are connected at right angles. There are various shapes such as a square shape, a T shape, and a square pipe shape in which four flat plates are connected in a cylindrical shape. Moreover, it does not specifically limit as a material of the reinforcing material 4, Iron, stainless steel, aluminum, an aluminum alloy etc. are mentioned.

  A heat-expandable resin composition layer 5 is formed directly on the surface of the reinforcing material 4. “Directly” means that the heat-expandable resin composition layer 5 is laminated on the surface of the reinforcing material 4 without using an adhesive tape, an adhesive, an adhesive, or the like.

  The dimensions of the thermally expandable composition layer 5, that is, the length, width, and thickness are not particularly limited, and are appropriately set according to the dimensions of the reinforcing material 4. The heat-expandable resin composition layer 5 does not need to be formed entirely on the surface of the reinforcing material 4 and may be formed only partially. That is, for example, as shown in FIG. 2, when the reinforcing member 4 is U-shaped, it may be formed on the surface of one, two, or all of the three flat plates. Further, for example, as shown in FIG. 3, when the reinforcing member 4 has a square pipe shape, it may be formed on the surface of one, a plurality of plates, or all of the four flat plates. In addition, it is preferable that the heat-expandable resin composition layer 5 is formed on a surface (a surface parallel to the fitting 3) of the reinforcing member 4 facing the room or the room. Moreover, in each flat plate which comprises the reinforcing material 4, the thermally expansible resin composition layer 5 does not need to be formed in the whole surface of a flat plate, and includes a part (one place and several places) of the surface of a flat plate. ) May be formed only. The thermally expandable resin composition layer 5 faces the inner surfaces of the hollow portions 14A, 14B, 14C of the reinforcing material 4 (the wall surfaces of the members 10-13, 20-23 that define the hollow portions 14A, 14B, 14C). It is preferable that it be formed on the surface on the side to be processed.

  The reinforcing material 4 on which the above-described thermally expandable resin composition layer 5 is laminated is the hollow portions 14A and 14B of the frame materials 10 to 13 and / or the outer peripheral frame body 2 constituting the opening frame body 1. When inserted into the hollow portion 14C of the materials 20 to 23, the fireproof sash is heated by a fire or the like, and even if a part of the fireproof sash is burnt out, the thermally expandable resin composition layer 5 is thermally expanded and the fireproof sash burns. Then, since the burned-out portion is buried, it is possible to prevent the flame from entering. Moreover, since the intrusion of the flame can be prevented by the reinforcing material 4 as well, a good fireproof performance can be exhibited. In addition, even if the thickness of the heat-expandable resin composition layer 5 is reduced, the fireproof performance can be ensured, so that the cost can be reduced and the weight can be reduced.

  Next, the thermally expandable resin composition that forms the above-described thermally expandable resin composition layer 5 will be described. The thermally expandable resin composition is a resin component containing a thermally expandable layered inorganic material and an inorganic filler.

  Examples of the resin component include thermoplastic resins, thermosetting resins, rubber substances, and combinations thereof.

  Examples of the thermoplastic resin include polypropylene resins, polyethylene resins, poly (1-) butene resins, polyolefin resins such as polypentene resins, polystyrene resins, acrylonitrile-butadiene-styrene (ABS) resins, and polycarbonates. And synthetic resins such as polyresin, polyphenylene ether resin, acrylic resin, polyamide resin, polyvinyl chloride resin, phenol resin, polyurethane resin, and polyisobutylene.

  Examples of the thermosetting resin include polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, polyimide, and the like.

  Rubber materials include natural rubber, isoprene rubber, butadiene rubber, 1,2-polybutadiene rubber, styrene-butadiene rubber, chloroprene rubber, nitrile rubber, butyl rubber, chlorinated butyl rubber, ethylene-propylene rubber, chlorosulfonated polyethylene, acrylic rubber , Rubber materials such as epichlorohydrin rubber, polyvulcanized rubber, non-vulcanized rubber, silicon rubber, fluorine rubber, urethane rubber, and the like.

  These synthetic resins and / or rubber substances can be used alone or in combination of two or more. Among these synthetic resins and / or rubber substances, those having flexible and rubbery properties are preferable. Those having such properties can be highly filled with an inorganic filler, and the resulting heat-expandable resin composition is flexible and easy to handle. In order to obtain a heat-expandable resin composition that is more flexible and easy to handle, a non-vulcanized rubber such as butyl or a polyethylene resin is preferably used. Furthermore, an epoxy resin is preferable from the viewpoint of improving the fire resistance by increasing the flame retardancy of the resin itself.

  Next, the heat-expandable layered inorganic material expands upon heating, but such heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. Can do. Thermally expandable graphite is a conventionally known substance, and powders such as natural scaly graphite, pyrolytic graphite and quiche graphite are mixed with inorganic acids such as concentrated sulfuric acid, nitric acid and selenic acid, concentrated nitric acid, perchloric acid, A graphite intercalation compound was produced by treatment with a strong oxidant such as chlorate, permanganate, dichromate, dichromate, hydrogen peroxide, etc., and the layered structure of carbon was maintained. It is a kind of crystalline compound as it is.

  The heat-expandable graphite obtained by acid treatment as described above is preferably further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like.

  The particle size of the thermally expandable graphite is preferably 20 mesh to 200 mesh. If the particle size is smaller than 200 mesh, the degree of expansion of graphite is small, and a sufficient expanded heat insulating layer cannot be obtained. If the particle size is larger than 20 mesh, there is an advantage that the degree of expansion of graphite is large. At the same time, dispersibility deteriorates and physical properties deteriorate. Examples of commercially available products of thermally expandable graphite include “GREP-EG” manufactured by Tosoh Corporation, “GRAFGUARD” manufactured by GRAFTECH, and the like.

  Next, the inorganic filler increases the heat capacity and suppresses heat transfer when the expanded heat insulating layer is formed, and works as an aggregate to improve the strength of the expanded heat insulating layer. The inorganic filler is not particularly limited, and examples thereof include metal oxides such as alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, and ferrites; calcium hydroxide And water-containing inorganic substances such as magnesium hydroxide, aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate and barium carbonate.

  In addition to the above, inorganic fillers include calcium salts such as calcium sulfate, gypsum fiber, calcium silicate; silica, diatomaceous earth, dosonite, barium sulfate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite. , Imogolite, sericite, glass fiber, glass beads, silica balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate MOS ”(trade name), lead zirconate titanate, zinc stearate, calcium stearate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, dehydrated sludge, etc. All It is. These inorganic fillers may be used alone or in combination of two or more.

  The particle size of the inorganic filler is preferably 0.5 μm to 100 μm, more preferably 1 μm to 50 μm, but is not particularly limited. When the addition amount of the inorganic filler is small, the dispersibility largely affects the performance, so that the particle size is preferably small. However, when it is less than 0.5 μm, secondary aggregation occurs and the dispersibility deteriorates. When the particle size exceeds 100 μm, the surface properties of the molded body and the mechanical properties of the resin composition are lowered.

  As the inorganic filler, for example, in aluminum hydroxide, “Hijilite H-31” (manufactured by Showa Denko) having a particle size of 18 μm, “B325” (manufactured by ALCOA) having a particle size of 25 μm, and calcium carbonate, Examples thereof include “Whiteon SB Red” having a particle size of 1.8 μm (manufactured by Bihoku Flour Industry Co., Ltd.), “BF300” having a particle size of 8 μm (manufactured by Bihoku Powder Company).

  Further, the thermally expandable resin composition may further contain a phosphorus compound in addition to the above-described components in order to increase the strength of the expanded heat insulating layer and improve the fireproof performance. The phosphorus compound is not particularly limited. For example, red phosphorus; various phosphate esters such as triphenyl phosphate, tricresyl phosphate, trixylenyl phosphate, cresyl diphenyl phosphate, xylenyl diphenyl phosphate; sodium phosphate, Examples thereof include metal phosphates such as potassium phosphate and magnesium phosphate; ammonium polyphosphates; compounds represented by the following chemical formula (1), and the like. Among these, from the viewpoint of fire prevention performance, red phosphorus, ammonium polyphosphates, and compounds represented by the following chemical formula (1) are preferable, and ammonium polyphosphates are more preferable in terms of performance, safety, cost, and the like. .

  In chemical formula (1), R1 and R3 represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R2 is a hydroxyl group, a linear or branched alkyl group having 1 to 16 carbon atoms, a linear or branched alkoxyl group having 1 to 16 carbon atoms, an aryl group having 6 to 16 carbon atoms, or a carbon number Represents 6 to 16 aryloxy groups.

  As red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of safety such as moisture resistance and not spontaneous ignition during kneading, a material in which the surface of red phosphorus particles is coated with a resin is preferably used. The ammonium polyphosphates are not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability. Examples of commercially available products include “AP422” and “AP462” manufactured by Clariant, “FR CROS 484” and “FR CROS 487” manufactured by Budenheim Iberica.

  The compound represented by the chemical formula (1) is not particularly limited. For example, methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, propylphosphonic acid, butylphosphonic acid, 2-methylpropylphosphonic acid, t- Butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphinic acid, phenylphosphine Examples include acid, diethylphenylphosphinic acid, diphenylphosphinic acid, bis (4-methoxyphenyl) phosphinic acid and the like. Among them, t-butylphosphonic acid is preferable in terms of high flame retardancy although it is expensive. The above phosphorus compounds may be used alone or in combination of two or more.

  Further, in the thermally expandable resin composition, as long as the physical properties are not impaired, antioxidants such as phenols, amines, and sulfurs, metal damage inhibitors, antistatic agents, stabilizers, crosslinking agents, lubricants , Softeners, pigments and the like may be added. Moreover, a general flame retardant may be added and fire prevention performance can be improved by the combustion suppression effect by a flame retardant.

  The thermally expandable resin composition contains 10 to 350 parts by weight of a thermally expandable layered inorganic substance and 5 to 400 parts by weight of an inorganic filler with respect to 100 parts by weight of a resin component such as a thermoplastic resin or an epoxy resin. preferable.

  The total of the thermally expandable layered inorganic substance and the inorganic filler is preferably in the range of 25 to 600 parts by weight with respect to 100 parts by weight of the resin component.

  Such a heat-expandable resin composition expands by heating to form a fire-resistant expanded heat insulating layer. According to this formulation, the thermally expandable resin composition layer expands by heating such as a fire, and can obtain a necessary volume expansion coefficient. After expansion, a residue having a predetermined heat insulation performance and a predetermined strength is obtained. It can be formed, and stable fireproof performance can be achieved.

  When the total amount of the thermally expandable layered inorganic substance and the inorganic filler in the thermally expandable resin composition is 50 parts by weight or more, the amount of residue after combustion is satisfied and sufficient fire resistance is obtained, and is 600 parts by weight or less. Mechanical properties are maintained.

  Furthermore, the heat-expandable resin composition may be used in addition to antioxidants such as phenols, amines, sulfurs, etc., as well as metal damage inhibitors, antistatic agents, stabilizers, cross-linking agents, lubricants, softeners. And additives such as pigments, tackifying resins and molding aids, and tackifiers such as polybutene and petroleum resins.

  Each component of the above-described thermally expandable resin composition is kneaded using a known apparatus such as a single-screw extruder, a twin-screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a reiki machine, a planetary stirrer, or a disper. Thus, a thermally expandable resin composition can be obtained.

The heat-expandable resin composition is not particularly limited as long as it is heat-insulated by the expanded heat-insulating layer when exposed to a high temperature such as in a fire, and the expanded heat-insulating layer has strength, but preferably 50 kW. The volume expansion coefficient after heating for 30 minutes under the heating condition of / m ² is in the range of 3 to 50 times, more preferably the volume expansion coefficient is in the range of 5 to 40 times, more preferably 8 The range is from double to 35 times.

  For the heat-expandable resin composition layer 5, for example, a putty-like two-component thermosetting resin composition (putty material) is used, and this putty material is applied to the desired surface of the reinforcing material 4 and cured to reinforce the reinforcing material. By being integrated with 4, it can be formed directly on the surface of the reinforcing material 4.

  As the putty material, a resin composition obtained by blending at least expandable graphite and an inorganic filler with a thermosetting resin can be used, and an epoxy resin can be suitably used as the thermosetting resin.

 Examples of the epoxy resin include a resin obtained by reacting a monomer having an epoxy group with a curing agent. As a monomer having an epoxy group, for example, as a bifunctional glycidyl ether type, polyethylene glycol type, polypropylene glycol type, neopentyl glycol type, 1,6-hexanediol type, trimethylolpropane type, propylene oxide-bisphenol A, Examples thereof include monomers such as hydrogenated bisphenol A type, bisphenol A type, and bisphenol F type.

  Examples of the glycidyl ester type include monomers such as hexahydrophthalic anhydride type, tetrahydrophthalic anhydride type, dimer acid type, and p-oxybenzoic acid type.

  Furthermore, examples of the polyfunctional glycidyl ether type include monomers such as phenol novolac type, orthocresol type, DPP novolac type, dicyclopentadiene, and phenol type.

  These can use 1 type, or 2 or more types.

  Examples of the curing agent include a polyaddition type curing agent and a catalyst type curing agent. Examples of polyaddition type curing agents include polyamines, acid anhydrides, polyphenols, polymercaptans, and the like. Examples of the catalyst-type curing agent include tertiary amines, imidazoles, and Lewis acid complexes. The method for curing these epoxy resins is not particularly limited, and can be performed by a known method.

  The heat-expandable resin composition layer 5 is obtained by, for example, melting a resin composition obtained by blending at least a heat-expandable graphite and an inorganic filler with a thermoplastic resin as a binder, By supplying the desired surface of the reinforcing material 4 by injection molding using a mold, solidifying it and integrating it with the reinforcing material 4, it can be formed directly on the desired surface of the reinforcing material 4.

  In the fireproof sash (opening frame body 1 and outer peripheral frame body 2) described above, the reinforcing material 4 having the thermally expandable resin composition layer 5 is inserted into the hollow portions 14A to 14C of the members constituting the fireproof sash. The fireproof performance can be easily imparted to a general fireproof sash that is not fireproof. Therefore, it can be used in fire prevention areas. Moreover, compared with the case where only a thermally expansible refractory material is inserted in the hollow part of the member which comprises a fireproof sash, the weight reduction and cost reduction of a fireproof sash can be achieved. In addition, by applying the heat-expandable resin composition layer 5 to the reinforcing material 5, applying a putty-like two-component thermosetting resin composition, or supplying the thermoplastic resin composition by injection molding, Since it forms, compared with the case where a sheet-like thermally expansible refractory material is affixed on the reinforcing material 5 using an adhesive tape etc., forming the thermally expansible resin composition layer 5 in the reinforcing material 4 correctly. Therefore, the fireproof sash can be provided with a certain fireproof performance, and the cost can be reduced.

  As mentioned above, although one Embodiment of this invention was described, this invention is not limited to the said embodiment, A various change is possible unless it deviates from the meaning of this invention. For example, in the above embodiment, the example of the sliding window is shown as an example of the fireproof sash, but it is not limited to this, and a vertically movable glass door, a glass door for metal fitting, a metal door, a rotating door The present invention can be applied to appropriate types such as an open / close door, a sliding door, and a sliding door.

  Further, the member constituting the fire sash may have a hollow portion into which only the reinforcing material 4 is inserted, or may have a hollow portion into which only the thermally expandable refractory material is inserted. There may be a hollow part into which nothing is inserted.

  Moreover, in the said embodiment, although the fireproof sash was mentioned as an example and demonstrated as a building member, a fire door can be mentioned as another example of a building member, for example. FIG. 4 shows a front view of a fire door as another embodiment of the present invention, and FIG. 5 shows a cross-sectional view taken along line BB of FIG. 6 is a front view of the surface material, FIG. 7 is a front view of the reinforcing material, and FIG. 8 is an exploded view of the main part of the fire door 6.

  The fire door 6 is fixed to an opening formed at the entrance of a structure such as a house so as to be openable and closable by a hinge or the like. For example, a rectangular steel or aluminum frame member (upper and lower end surfaces) A pair of steel or aluminum decorative materials (surface material 62 and back material 63) are bonded to the front and back surfaces of the material (not shown) and the left and right side materials 60, 61). The metal reinforcing material 4 is inserted in the hollow portion 65 formed between the pair of the surface material 62 and the back material 63 along the longitudinal direction. Further, a heat insulating material 64 is provided between the pair of the surface material 62 and the back material 63. In addition, the structure of the fire door 6 will not be specifically limited if it has a hollow part inside.

  Attachment holes 65 and 66 for attaching the key cylinder 7 and the handle 8 are formed in the surface material 62 and the back material 63, respectively. In the illustrated example, two mounting holes 65 for the key cylinder 7 and two mounting holes 66 for the handle 8 are formed. The number of through holes 65 and 66 can be changed as appropriate depending on the number of key cylinders 7 and the shape of the handle 8. The key cylinder 7 is exposed to the outside of the fire door 6 through the mounting hole 65. Further, in the handle 8, the connecting portion 80 is exposed to the outside of the fire door 6 through the attachment hole 66, and the handle portion 81 is connected to each connecting portion 80 on the outside of the fire door 6. The main body (not shown) of the key cylinder 7 and the main body (not shown) of the handle 8 are built in a hollow portion between the surface material 62 and the back material 63.

The reinforcing material 4 is affixed to the inner surface of the hollow portion 65 (the inner surface of the surface material 62 and the back material 63 defining the hollow portion 65) using an adhesive tape, an adhesive, or the like. The shape of the reinforcing member 4 includes a first flat plate portion 42 that can be inserted into the hollow portion 65 and is disposed to face the surface material 62, and a second flat plate portion 43 that is disposed to face the back material 63. For example, there is no particular limitation, and a U-shaped type in which three flat plates are connected at right angles and a square pipe type in which four flat plates are connected in a cylindrical shape can be used. Moreover, it does not specifically limit as a material of the reinforcing material 4, Iron, stainless steel, aluminum, an aluminum alloy etc. are mentioned. The reinforcing material 4 does not need to be in contact with the surface material 62 and the back material 63, and a heat insulating material or the like may be sandwiched therebetween.

  In the first flat plate portion 42 and the second flat plate portion 43 of the reinforcing member 4, through holes 40 and 41 are formed at the center in the width direction so as to face the mounting holes 65 and 66. The through hole 40 is formed in a size that allows the key cylinder 7 and the through hole 41 to be inserted through the connecting portion 80 of the handle 8, and is formed between the first flat plate portion 42 and the second flat plate portion 43 of the reinforcing member 4. The main body (not shown) of the key cylinder 7 and the main body (not shown) of the handle 8 are incorporated in the main body.

  The heat-expandable resin composition layer 5 is directly formed on the outer side surface and the inner side surface of the first flat plate portion 42 and the second flat plate portion 43 of the reinforcing material 4. “Directly” means that the heat-expandable resin composition layer 5 is laminated on the surface of the reinforcing material 4 without using an adhesive tape, an adhesive, an adhesive, or the like.

  For example, as shown in FIGS. 5 and 8, the thermally expandable resin composition layer 5 extends along the longitudinal direction on the left and right side edges of the first flat plate portion 42 and the second flat plate portion 43. Can be provided. In this case, the through holes 40 and 41 are sandwiched between the pair of thermally expandable resin composition layers 5. The length (width) in the width direction of the thermally expandable resin composition layer 5 is not particularly limited.

  In addition, the thermally expansible resin composition layer 5 provided in the right and left of each through-holes 40 and 41 may extend the 1st flat plate part 42 and the 2nd flat plate part 43 continuously in a longitudinal direction, or intermittently. In other words, a plurality of the first flat plate portion 42 and the second flat plate portion 43 may be provided at intervals along the longitudinal direction. In this case, the thermally expandable resin composition layer 5 is provided only to the extent that it can sufficiently cover the vicinity of each through hole 40, 41, that is, the length in the longitudinal direction (vertical width) of each through hole 40, 41. It may be done.

  Further, the thermally expandable resin composition layer 5 may also be provided so as to sandwich the through holes 40 and 41 in the longitudinal direction of the first flat plate portion 42 and the second flat plate portion 43. That is, the thermally expandable resin composition layer 5 can be provided so as to surround the through holes 40 and 41.

  In the illustrated example, the thermally expandable resin composition layer 5 is provided on the inner and outer surfaces of the first flat plate portion 42 and the second flat plate portion 43, but the first flat plate portion 42 and the second flat plate portion 43. It may be provided only on at least one of the inner surface and the outer surface.

  As in the above embodiment, the thermally expandable resin composition layer 5 uses a putty-like two-component thermosetting resin composition (putty material), and applies this putty material to a desired surface of the reinforcing material 4. By being cured and integrated with the reinforcing material 4, it can be formed directly on the surface of the reinforcing material 4.

  The thermally expandable resin composition layer 5 is prepared by melting a resin composition obtained by blending at least a thermally expandable graphite and an inorganic filler with a thermoplastic resin as a binder, and then forming a predetermined mold. By supplying the desired surface of the reinforcing material 4 by the injection molding used, solidifying it and integrating it with the reinforcing material 4, it can be formed directly on the desired surface of the reinforcing material 4.

  In the fire door 6 described above, since the reinforcing material 4 having the thermally expandable resin composition layer 5 is inserted into the hollow portion 65, fire performance can be easily imparted to a general fire door that is not fire-proof. . That is, when the fire door 6 is heated due to a fire or the like, the thermally expandable resin composition layer 5 is thermally expanded and fills the through holes 40 and 41 and the mounting holes 65 and 66. It is possible to prevent the flame from entering. In addition, since the hollow portion 65 is also filled with the thermally expandable resin composition layer 5 that has been thermally expanded, it is possible to prevent the flame from spreading, and thus good fireproof performance can be exhibited. In addition, similar to the above embodiment, the cost of the fire door 6 can be reduced and the weight can be reduced.

1 Opening frame (fire sash)
2 Outer frame (fire sash)
4 Reinforcing Material 5 Thermally Expandable Resin Composition Layer 6 Fire Door 7 Key Cylinder 8 Handles 14A to 14C Hollow Parts 40, 41 Through Hole 42 First Flat Plate Part 43 Second Flat Plate Part 60, 61 Mounting Hole 62 Surface Material 63 Back Material 65 Hollow part

Claims (7)

A building member having a hollow portion installed in the opening of the structure and extending in the longitudinal direction therein,
In the hollow portion, a metal reinforcing material is inserted,
A building member in which a thermally expandable resin composition layer is formed directly on at least a part of the reinforcing material. The building member is a fire sash that supports a plate material,
Each side of the fire protection sash has the hollow portion extending in the longitudinal direction of the side,
The building member according to claim 1, wherein the reinforcing material is inserted into the hollow portion. The building member is a fire door,
The building according to claim 1, wherein the fire door includes a surface material and a back material, has the hollow portion between the surface material and the back material, and the reinforcing material is inserted into the hollow portion. Element. An attachment hole for attaching a key cylinder and / or a handle is formed in the surface material and the back material,
The reinforcing member has a first flat plate portion arranged to face the surface material and a second flat plate portion arranged to face the back material,
A through hole is formed in the first flat plate portion and the second flat plate portion at a position facing the mounting hole,
The building member according to claim 3, wherein the thermally expandable resin composition layer is formed on the reinforcing material so as to sandwich the through hole.   The said heat-expandable resin composition layer hardens | cures the putty-like resin composition containing a thermosetting resin, a heat-expandable graphite, and an inorganic filler. Building material.   The building member according to claim 5, wherein the thermosetting resin is an epoxy resin.   The building member according to any one of claims 1 to 4, wherein the thermally expandable resin composition layer is formed by molding a resin composition containing a thermoplastic resin, thermally expandable graphite, and an inorganic filler.