Partition Penetration Processing Member

Abstract

To provide a compartment penetration treatment member capable of constructing a compartment penetration treatment structure by a simplified method and forming a compartment penetration treatment structure with little variation in performance even after construction.SOLUTION: A compartment penetration treatment member 1 for making a fireproof structure of a compartment penetration portion 15 which is formed in a partition 11 of a building and through which a long insert 21 is inserted inside, comprises: a cover portion 3 arranged with one side 3B in contact with an outer surface 11A1 of the partition 11 and covering an opening 13C of the compartment penetration portion 15 in the partition 11; a body portion 4 having a cylindrical portion 40 protruding to the other side 3A of the cover portion 3 and provided with a fire-resistant material 41 inside, in which the insert 21 is inserted into the cylindrical portion 40; and an engagement portion 5 provided by protruding to one side 3B of the cover portion 3 and engaging with an inner surface 11A2 of the partition 11. The cover portion 3 and the engagement portion 5 sandwich the partition 11 from both sides, and are fixed to the compartment penetration portion 15.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a partition penetration processing member for forming a partition penetration processing structure formed in a partition part such as a building.

Background Art

[0002] In buildings such as apartment houses, office buildings, and schools, partition penetration parts may be provided in partition parts such as walls to allow long insertion bodies such as cables and pipes to pass through. When a fire breaks out in any compartment, the partition penetration part is required to have a fire prevention structure (fireproof structure) to prevent the spread of fire to other compartments. The partition part generally consists of two wall parts, and a hollow wall with a hollow part between the wall parts is common. Other walls that make up the partition part include single walls, lightweight cellular concrete walls (ALC walls), structural walls (RC walls), and walls with a 60-minute fire resistance structure recognized by the Minister of Land, Infrastructure, Transport and Tourism (individually certified walls).

[0003] As a method of making the partition penetration part a fireproof structure, for example, a method of filling a gap between a long insertion body and a through hole with a fireproof putty is known. When using a fireproof putty, a body part made of a fireproof material may be arranged between the inside of the through hole of each wall part and the insertion body (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] As shown in Patent Document 1, when the inner peripheral surface of the through hole of each wall part and the insertion body are blocked by a fireproof putty, there are problems such as poor workability and variations in performance depending on the operator. In recent years, at construction sites, there has been a serious shortage of labor, and the number of skilled technicians has been decreasing year by year. There is a demand to simplify the construction of the partition penetration treatment structure.

[0006] Therefore, an object of the present invention is to provide a partition penetration treatment member that can construct a partition penetration treatment structure in a simplified manner and can form a partition penetration treatment structure with little variation in performance even after construction.

Means for Solving the Problems

[0007] The present invention has been made to solve the above problems, and the gist of the present invention is as follows. [1] A partition penetration treatment member having a fireproof structure for a partition penetration portion formed in a partition portion of a building and through which a long insertion body is inserted, the cover portion having one surface thereof in contact with the outer surface of the partition portion and covering the opening of the partition penetration portion provided in the partition portion, a cylindrical portion protruding from the other surface side of the cover portion and having a refractory material provided therein, and the insertion body being inserted into the cylindrical portion, and an engaging portion protruding from one surface side of the cover portion and engaging with the inner surface of the partition portion, wherein the cover portion and the engaging portion sandwich the partition portion from both sides, thereby being fixed to the partition penetration portion. [2] The partition penetration treatment member according to [1], further comprising an adjuster mechanism for adjusting the positional relationship of the engaging portion with respect to the partition portion. [3] The partition penetration treatment member according to [2], wherein the adjuster mechanism is provided on the inner wall surface or the outer wall surface of the cylindrical portion. [4] The partition penetration treatment member according to [2], wherein the adjuster mechanism is provided on the cover portion. [5] The partition penetration treatment member according to any one of [2] to [4], wherein the adjuster mechanism can adjust the positional relationship of the engaging portion with respect to the partition portion stepwise. [6] The partition penetration treatment member according to any one of [1] to [5], which is divisible. [7] The partition penetration processing member according to any one of [1] to [6], wherein the refractory material is a thermally expandable member that expands upon heating.

Advantages of the Invention

[0008] According to the present invention, it is possible to provide a partition penetration processing member that can construct a partition penetration processing structure by a simplified method and can form a partition penetration processing structure with little variation in performance even after construction.

Brief Description of the Drawings

[0009]

Figure 1

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Mode for Carrying Out the Invention

[0010] [Embodiment] As shown in FIGS. 1 and 2, the partition penetration processing structure 10 according to an embodiment of the present invention has a fireproof structure in a partition portion 11 of a building, and a long insertion body 21 is inserted into the interior thereof through a partition penetration portion 15. The partition penetration processing member 1 used in the partition penetration processing structure 10 according to an embodiment of the present invention includes a cover portion 3, a body portion 4, and an engaging portion 5.

[0011] The partition portion 11 in the partition penetration processing structure of the present invention is a member that partitions between compartments (the first compartment A and the second compartment B) on the wall surface of a building, and has a partition penetration portion 15 that penetrates from one outer surface 11A1 side of the partition portion 11 to the other outer surface 11B1 side. The partition portion 11 shown in FIGS. 1 and 2 is a hollow wall and is composed of two wall materials (partition materials) 12A and 12B arranged with an interval (hollow portion 13) therebetween. Therefore, the partition penetration portion 15 is composed of a through hole 13A formed in one wall material 12A, a through hole 13B formed in the other wall material 12B, and the hollow portion 13 therebetween. And the outer surface of one wall material 12A constitutes the outer surface 11A of the partition portion 11, and the outer surface of the other wall material 12B constitutes the outer surface 11B of the partition portion 11. The through holes 13A and 13B may have, for example, a circular, elliptical, square, rectangular shape, or a shape approximating these. Note that the through holes 13A and 13B constitute openings 13C and 13D of the partition penetration portion 15 provided in the partition portion 11 on the outer surfaces 11A1 and 11B1, respectively. As the wall materials (partition materials) 12A and 12B constituting the partition portion 11, there are, for example, gypsum boards, extruded cement boards, lightweight foam concrete (ALC) boards, precast concrete (PC) boards, glass fiber reinforced concrete (GRC) boards, calcium silicate boards, high-density rock wool molded boards, concrete blocks, composite panels of a core material and metal, etc., and preferably a gypsum board. Examples of the gypsum board include a hard gypsum board (GB-R-H), a reinforced gypsum board (GB-F), and a normal gypsum board (GB-R).

[0012] Hereinafter, the configuration of the partition penetration treatment structure 10 on one opening 13C side of the partition portion 11 will be described. In the present embodiment, since the configuration of the partition penetration treatment structure 10 on the other opening 13D side is the same, the description thereof will be omitted.

[0013] The partition penetration treatment structure 10 according to the embodiment includes, as the partition penetration treatment material 1, a cover portion 3, a body portion 4, and an engagement portion 5, and the cover portion 3 and the engagement portion 5 are fixed to the partition penetration portion 15 by sandwiching the partition portion 11 from both sides.

[0014] The partition penetration treatment material 1 according to the embodiment is, for example, as shown in Fig. 3(a), composed of a pair of split pieces 1A and 1B that are split into two, and as shown in Fig. 3(b), it is configured in a state where the split pieces 1A and 1B are butted against each other. The split pieces 1A and 1B may be fixed to each other, for example, by providing convex portions, concave portions, etc. on their butting surfaces respectively and fitting them together. Since the partition penetration treatment material 1 is configured to be divisible, the insertion body 21 can be easily inserted therein. Note that the partition penetration treatment material 1 is not limited to the above-described configuration that can be split into two, and any shape may be used as long as it is a member that forms the partition penetration treatment structure 10 and allows the insertion body 21 to be inserted therein. For example, the partition penetration treatment material 1 may not be split into two and may be of an integral type, or may be configured to be divisible into three or more parts.

[0015] 〔Cover portion〕 The cover part 3 is arranged with one surface 3B thereof in contact with the outer surface 11A1 of the partition part 11, and covers the opening 13C of the partition through-hole 15 provided in the partition part 11. By arranging the cover part 3 in contact with the partition part 11, the opening 13C of the partition through-hole 15 provided in the partition part 11 can be covered, and the fire resistance and aesthetics can be improved. The cover part 3 may be formed of a non-combustible material, for example, it may be formed of metal, resin, etc., or may be formed of a composite material such as fiber-reinforced plastic.

[0016] 〔Body part〕 As shown in FIGS. 1 and 2, the body part 4 protrudes toward the other surface 3A side of the cover part 3 and has a cylindrical part 40 provided with a refractory 41 inside. Details of the refractory 41 will be described later. The body part 4 may be formed of a non-combustible material, for example, it may be formed of metal, resin, etc., or may be formed of a composite material such as fiber-reinforced plastic. The body part 4 and the cover part 3 are connected to each other integrally. The body part 4 may be integrally formed with the cover part 3, or may be formed separately from the cover part 3 and then integrated.

[0017] As shown in FIG. 2, the body part 4 suppresses the movement of the inserted body 21 inserted therein, and fills the gap between the inner wall surface 40A of the cylindrical part 40 and the inserted body 21 with a filling member 45 in order to close the opening 13C and make it invisible. The filling member 45 is not particularly limited as long as it can suppress the movement of the inserted body 21, and examples thereof include rubber-like materials and sponge-like materials from the viewpoints of ease of filling and weight reduction. Further, the filling member 45 may be a non-combustible material such as rock wool or glass wool, or a heat-resistant sealing material and a refractory putty may be used for the purpose of improving the smoke shielding performance and the sound insulation performance.

[0018] 〔Engagement part〕 As shown in FIGS. 1 and 2, the engaging portion 5 is provided to protrude from one surface 3B side of the cover portion 3 and engages with the inner surface 11A2 of the partition portion 11. By engaging with the inner surface 11A2 of the partition portion 11 by the engaging portion 5, the cover portion 3 and the engaging portion 5 sandwich the partition portion 11 from both sides, and the partitioning through-processing member 1 is fixed to the partitioning through portion 15. The engaging portion 5 may be formed of a non-combustible material. For example, it may be formed of metal, resin, or the like, or may be formed of a composite material such as fiber-reinforced plastic.

[0019] In order to facilitate the engagement with the inner surface 11A2 of the partition portion 11, the engaging portion 5 may be configured to include an engaging portion 50. The engaging portion 50 may be capable of engaging with the inner surface 11A2 of the partition portion 11. For example, as shown in FIG. 4(a), it may be configured to include a first folded-back portion 50A in which a middle portion of the engaging portion 5 is folded back radially outward at an acute angle, and a second folded-back portion 50B in which a middle portion of the first folded-back portion 50A is folded back radially inward. The first folded-back portion 50A forms a tapered shape with a tip that tapers in the entering direction into the through-hole 13A of the engaging portion 50, and enhances the enterability of the engaging portion 50 into the through-hole 13A. The second folded-back portion 50B forms a surface capable of engaging with the inner surface 11A2 of the partition portion 11, and can engage with the inner surface 11A2 of the partition portion 11 reliably and easily. Note that, from the viewpoint of enhancing the enterability into the through-hole 13A, when passing through the through-hole 13A, the engaging portion 5 is preferably made of a material and has a shape such that the engaging portion 50 is pressed against the inner peripheral surface of the through-hole 13A and can bend toward the center of the through-hole 13A and retract. In the present embodiment, the shape of the engaging portion 50 may be any shape that can engage with the inner surface 11A2 of the partition portion 11. Specifically, it may have a structure that protrudes radially outward from the engaging portion 5. For example, as shown in FIG. 4(b), it may have an H-shaped cross-section, or as shown in FIG. 4(c), it may simply have a shape that is bent radially outward, or as shown in FIG. 4(d), it may have a shape provided with protrusions. Further, in the configuration of FIG. 4(a), the second folded-back portion 50B may be omitted. Further, as shown in FIGS. 4(a) to 4(c), the engaging portion 50A is disposed at the tip of the protruding engaging portion 5, so that there is no need to provide an extra portion on the engaging portion 5. Further, as shown in FIGS. 4(a) and 4(c), by adopting a shape in which the tip is bent, the formability and the like are also improved.

[0020] In the engaging portion 5, as shown in FIGS. 3(b) and 4, the distance d from one surface 3B of the cover portion 3 to the engaging portion 50 is made equal to the thickness of the partition portion 11, so that the partitioning penetration processing member 1 can be stably fixed to the partitioning penetration portion 15. The distance d in the engaging portion 5 can be, for example, the thickness of the partition portion 11 having a fire-resistant structure such as the fire-resistant grade, quasi-fire-resistant grade, and ordinance quasi-fire-resistant grade defined in the Ministry of Construction Notification No. 1399. The distance d is, for example, 15 mm, 22 mm, 25 mm, 42 mm, etc. Further, the distance d can be, for example, about 10 to 50 mm in the case of a wall with a hollow structure, and about 70 to 250 mm in the case of a wall with a solid structure.

[0021] The distance d in the engaging portion 5 may be constant or variable. When the distance d is variable, as shown in FIGS. 5 to 7, it is preferable to provide an adjuster mechanism 6 for adjusting the positional relationship of the engaging portion 5 with respect to the partition portion 11. The adjuster mechanism 6 is a mechanism that enables the engaging portion 50 of the engaging portion 5 to slide in the thickness direction of the partition portion 11 and enables the distance d in the engaging portion 5 to be adjusted according to the thickness of the partition portion 11. The adjuster mechanism 6 may be any mechanism that can adjust the positional relationship of the engaging portion 5 with respect to the partition portion 11. For example, it may be adjustable stepwise or continuously. However, from the viewpoints of the ease of installation of the partitioning penetration processing member 1 and the mechanical strength, it is preferably a mechanism that can be adjusted stepwise. Examples of the stepwise adjustable adjuster mechanism 6 include a ratchet adjuster. The ratchet adjuster as the adjuster mechanism 6 enables the engaging part 5 to move forward and backward along the thickness direction of the partition part 11 by adjusting the distance d at the engaging part 5 to match the thickness of the partition part 11. For example, although the engaging part 5 extends elogatedly along the thickness direction of the partition part 11, a plurality of claws are provided in its longitudinal direction, and the adjuster mechanism 6 may be configured to be provided with a stopper for locking the claws provided on the engaging part 5. The stopper of the adjuster mechanism 6 can be selectively locked with any one of the plurality of claws of the engaging part 5, and by releasing the locked state, the distance d at the engaging part 5 can be adjusted. A known stopper can be used, for example, a member that can swing by pressing to release the locked state, etc.

[0022] As shown in FIGS. 5 and 6, the engaging part 5 is provided, for example, on the inner wall surface 40A or the outer wall surface 40B of the cylindrical part 40, and the adjuster mechanism 6 may also be provided on the inner wall surface 40A or the outer wall surface 40B accordingly. Further, for example, a groove 60 is provided on the inner wall surface 40A or the outer wall surface 40B, and the engaging part 5 may be arranged inside the groove 60. By providing the groove 60, even when the engaging part 5 is provided on the outer wall surface 40B of the cylindrical part 40, it is possible to protrude to the other surface 3A side without interfering with the cover part 3. However, it is not necessary to provide the groove 60 on the inner wall surface 40A or the outer wall surface 40B. Even when the groove 60 is not provided, the engaging part 5 and the adjuster mechanism 6 may be appropriately attached to the inner wall surface 40A or the outer wall surface 40B. As shown in FIGS. 5 and 6, the groove 60 may be provided from one end on the cover part 3 side of the cylindrical part 40 to the middle, but may also be provided from one end to the other end of the cylindrical part 40. Further, the engaging part 5 may be provided on the cover part 3, for example, as shown in FIGS. 7(a) and (b). In this case, the cover part 3 is provided with the adjuster mechanism 6 and may be provided with a block 61 that secures a space for enabling the engaging part 5 to move forward and backward.

[0023] <Refractory material> Examples of the refractory material 41 provided in the body portion 4 include a thermally expandable member that expands upon heating, a member made of a chloroprene-based rubber having sinterability, and a member made of a paste-like filler having heat absorption properties. From the viewpoints of ease of construction and weight reduction, a thermally expandable member is preferably used. The thermally expandable member can prevent the spread of a fire by expanding during a fire. For example, even when a fire breaks out in one compartment, it can prevent the fire from spreading to the other compartment. The refractory material 41 is preferably attached to the inner wall surface 40A of the body portion 4 as shown in FIG. 2. However, it is not necessarily required to be attached to the inner wall surface 40A as long as it is disposed inside the cylindrical portion 40. The refractory material 41 may be disposed in a cylindrical shape so as to surround the inserted body 21, for example, inside the cylindrical portion 40, and the cylindrical refractory material 41 may be attached to the inner wall surface 40A of the body portion 4. By attaching the refractory material 41 to the inner wall surface 40A, it becomes unnecessary to separately dispose the refractory material 41 inside the body portion 4 during construction. Further, the refractory material 41 does not necessarily have to be cylindrical. For example, one or more rod-shaped or sheet-shaped refractory materials 41 may be appropriately arranged, and the refractory material 41 may be appropriately attached to the inner wall surface 40A.

[0024] The thermally expandable member constituting the refractory material (inner refractory material) 41 is made of a thermally expandable resin composition. The thermally expandable resin composition is composed of a resin component and a thermally expandable resin composition containing a thermally expandable material. Examples of the thermally expandable material include a foaming agent that foams upon heating, vermiculite, and thermally expandable layered inorganic substances such as thermally expandable graphite. Among them, thermally expandable graphite is preferable. By using thermally expandable graphite, it can be appropriately expanded by the heating of a fire, and the mechanical strength of the expansion residue after expansion is excellent, making it easy to improve the fire resistance. Here, the thermally expandable material does not expand or expands only partially by molding or the like described later, and the thermally expandable resin composition maintains its thermal expandability in the thermally expandable member.

[0025] The expansion start temperature of the thermally expandable material is not particularly limited, but for example, it is preferably 150 to 350°C, more preferably 170 to 300°C, and even more preferably 180 to 280°C. By setting it below these lower limit values, it is possible to prevent the thermally expandable material from expanding erroneously due to heating other than a fire. Also, by setting it below the upper limit value, it becomes easier to surely expand the thermally expandable material by the heating of a fire. Also, the expansion start temperature of the thermally expandable material can be measured by heating a predetermined amount (for example, 100 mg) of the thermally expandable material at a constant heating rate (for example, 10°C / min) and measuring the temperature at which the normal force rises. As the measuring device, any device that can control the measuring temperature and measure the normal stress may be used. For example, a rheometer may be used.

[0026] The expansion ratio of the thermally expandable member is preferably 3 times or more, and preferably 10 times or more. The upper limit of the expansion ratio is not particularly limited, but for example, it is 50 times. The expansion ratio may be calculated by supplying the thermally expandable member to an electric furnace, heating it at 600°C for 30 minutes, measuring the thickness of the test piece, and using (thickness of the test piece after heating) / (thickness of the test piece before heating).

[0027] Hereinafter, the thermally expandable resin composition in the case where the thermally expandable material is expandable graphite will be described in detail. Examples of the resin component of the thermally expandable resin composition include thermoplastic resins, thermosetting resins, and elastomers. Examples of thermoplastic resins include polyvinyl chloride (PVC), chlorinated polyvinyl chloride resin (CPVC), fluororesin, polyphenylene ether, modified polyphenylene ether, polyphenylene sulfide, polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene (PE) and polypropylene (PP), polyolefins such as ethylene vinyl acetate (EVA), ethylene-propylene-diene copolymer (EPDM), chloroprene (CR), polyesters such as polyethylene terephthalate and polybutylene terephthalate, polycarbonate, polystyrene (PS), polyphenylene sulfide, acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene-acrylonitrile copolymer (ASA), acrylonitrile / ethylene-propylene-diene / styrene copolymer (AES), and the like. Examples of curable resins include epoxy resins, phenolic resins, melamine resins, urea resins, unsaturated polyester resins, alkyd resins, polyurethanes, thermosetting polyimides, and the like.

[0028] Examples of elastomers include natural rubber, silicone rubber, styrene-butadiene rubber, isoprene rubber, butadiene rubber, chloroprene rubber, acrylonitrile-butadiene rubber, nitrile butadiene rubber, butyl rubber, ethylene-propylene rubber, ethylene-propylene-diene rubber, urethane rubber, silicone rubber, and rubbers such as fluororubber. Also included are thermoplastic elastomers such as olefin-based thermoplastic elastomers (TPO), styrene-based thermoplastic elastomers (TPS), ester-based thermoplastic elastomers, amide-based thermoplastic elastomers, and vinyl chloride-based thermoplastic elastomers. The resin component of the thermally expandable resin composition may be one type or a combination of two or more types.

[0029] The thermally expandable resin composition may contain a plasticizer. The plasticizer is preferably used when the resin component is a thermoplastic resin such as a polyvinyl chloride resin. Specific examples of the plasticizer include phthalate plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), diisodecyl phthalate (DIDP), adipic acid esters such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), dibutyl adipate (DBA), fatty acid ester plasticizers such as adipic acid polyester, epoxidized ester plasticizers such as epoxidized soybean oil, trimellitic acid ester plasticizers such as tri-2-ethylhexyl trimellitate (TOTM), triisononyl trimellitate (TINTM), phosphate plasticizers such as trimethyl phosphate (TMP), triethyl phosphate (TEP), and process oils such as mineral oil. One kind or two or more kinds of plasticizers can be used. When the thermally expandable resin composition contains a plasticizer, the content of the plasticizer in the thermally expandable resin composition is in the range of, for example, 0.3 parts by mass or more and 150 parts by mass or less, preferably 10 parts by mass or more and 100 parts by mass or less, based on 100 parts by mass of the resin component. When the plasticizer is at or above these lower limit values, the moldability tends to be good, and when it is at or below the upper limit value, an appropriate strength is imparted to the molded body.

[0030] The total content of the resin component and the plasticizer is preferably 10% by mass or more and 90% by mass or less, more preferably 25% by mass or more and 80% by mass or less, and even more preferably 40% by mass or more and 70% by mass or less, based on the total amount of the resin composition. By setting it at or above these lower limit values, the moldability of the thermally expandable member can be improved. Also, by setting it at or below the upper limit value, it becomes possible to blend a sufficient amount of components such as thermally expandable graphite and inorganic fillers. Note that the total content of the resin component and the plasticizer means the total content of these when both the resin component and the plasticizer are contained, and means the content of the resin component alone when the plasticizer is not contained.

[0031] Thermally expandable graphite is a conventionally known substance, which is obtained by treating powders such as natural flaky graphite, pyrolytic graphite, and kish graphite with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, and strong oxidizing agents such as concentrated nitric acid, perchloric acid, perchlorate, permanganate, dichromate, and hydrogen peroxide to form graphite intercalation compounds. The produced thermally expandable graphite is a crystalline compound that maintains the layered structure of carbon. As the thermally expandable graphite used in the present invention, those obtained by neutralizing the thermally expandable graphite obtained by acid treatment with ammonia, aliphatic lower amines, alkali metal compounds, alkaline earth metal compounds, etc. can also be used. Examples of the aliphatic lower amines include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, butylamine, and the like. Examples of the alkali metal compounds and alkaline earth metal compounds include hydroxides, oxides, carbonates, sulfates, organic acid salts, etc. of potassium, sodium, calcium, barium, magnesium, and the like.

[0032] The particle size of the thermally expandable graphite is not particularly limited, but those in the range of 20 to 200 mesh are preferred. When the particle size is above the lower limit value, the expansion degree of the graphite tends to be large and the foaming property becomes good. Also, when it is below the upper limit value, the dispersibility during kneading with the resin becomes good and the moldability is improved.

[0033] The content of the thermally expandable graphite in the thermally expandable resin composition is, for example, 3 parts by mass or more and 300 parts by mass or less with respect to 100 parts by mass of the resin component. When the content of the thermally expandable graphite is 3 parts by mass or more, the thermal expandability becomes good. Also, when it is 300 parts by mass or less, the moldability becomes good, and the surface property, mechanical physical properties, etc. of the seal member also become good. From these viewpoints, the content of the thermally expandable graphite is preferably in the range of 10 parts by mass or more and 200 parts by mass or less, and more preferably in the range of 15 parts by mass or more and 100 parts by mass or less.

[0034] The thermally expandable resin composition may further contain an inorganic filler. The inorganic filler is not particularly limited as long as it is an inorganic filler generally used in thermally expandable resin compositions. Specifically, for example, silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, barium carbonate, dawsonite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate, talc, clay, mica, montmorillonite, bentonite, activated clay, sepiolite, imogolite, sericite, glass fiber, glass beads, silica balloon, aluminum nitride, aluminum phosphite, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balloon, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconate titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, dehydrated sludge, etc. can be mentioned. One kind or two or more kinds of inorganic fillers can be used. When containing an inorganic filler, the content of the inorganic filler in the thermally expandable resin composition is preferably in the range of 3 parts by mass or more and 200 parts by mass or less, more preferably in the range of 10 parts by mass or more and 150 parts by mass or less, based on 100 parts by mass of the resin component.

[0035] In addition, in the thermally expandable resin composition used in the present invention, additives generally used in thermally expandable resin compositions such as heat stabilizers, lubricants, processing aids, antioxidants, antistatic agents, pigments, crosslinking agents, crosslinking accelerators, etc. may be added as necessary within a range that does not impair its physical properties. Among these, it is preferable to use a processing aid.

[0036] The thermally expandable member can be manufactured, for example, as follows. First, a predetermined amount of a resin component, a thermally expandable material, and additives blended as required are kneaded with a kneader such as a kneading roll to obtain a thermally expandable resin composition. Next, when the resin component is a thermoplastic resin, rubber, elastomer, or a combination thereof, the obtained thermally expandable resin composition is formed into a desired shape by a known molding method such as press molding, calender molding, extrusion molding, injection molding, etc. to obtain a thermally expandable member. Also, when the resin component contains a thermosetting resin, the obtained thermally expandable resin composition is heated and pressurized, for example, by press molding, etc., to be thermally cured while being formed into a desired shape such as a sheet shape to obtain a thermally expandable member. Further, the thermally expandable member may be appropriately cut into a predetermined shape from the one molded as described above.

[0037] (Construction method of partition penetration structure) Hereinafter, with reference to FIGS. 8 to 10, the construction method of the partition penetration structure of the present embodiment will be described. In this construction method, as shown in FIG. 8, first, through holes 13A and 13B are formed in each wall member 12A and 12B of the partition portion 11 to form a partition penetration portion 15. Also, the above-described partition penetration treatment member 1 is prepared. Furthermore, in FIG. 8, an example is shown in which an insertion member 21, which is piping or cables, is passed through the partition penetration portion 15 before the partition penetration treatment member 1 is installed in the partition penetration portion 15. However, the insertion member 21 may be passed through the inside of the partition penetration treatment member 1 after the partition penetration treatment member 1 is installed in the partition penetration portion 15. Note that even when the insertion member 21, which is piping or cables, is passed through the partition penetration portion 15 before the partition penetration treatment member 1 is installed in the partition penetration portion 15, by configuring the partition penetration treatment member 1 to be divisible, the insertion body 21 can be easily inserted through the inside by sandwiching the insertion body 21 inside and integrating it.

[0038] Next, as shown in FIG. 9, the engaging portion 5 is inserted into the partition penetrating portion 15 from the outer surface 11A1 to the inner surface A2 of the partition portion 11. At this time, generally, the inner diameters of the through holes 13A and 13B are smaller than the outer diameter of the engaging portion 5. Therefore, while the engaging portion 5 is retracted radially inward, it is inserted into the through hole 13A, and the engaging portion 50 is moved to the outside of the inner surface A2. At this time, the engaging portion 5 moves while being pressed by the inner peripheral surface of the through hole 13A, but by moving to the outside of the inner surface A2, the pressing of the engaging portion 5 from the inner peripheral surface of the through hole 13A is released, and the engaging portion 50 of the engaging portion 5 advances radially outward. As a result, the inner surface 11A2 of the partition portion 11 and the engaging portion 50 come into contact with each other and engage, and the cover portion 3 and the engaging portion 5 sandwich the partition portion 11 from both sides, thereby fixing the partition penetrating processing member 1 to the partition penetrating portion 15. Then, by filling the gap between the inner wall surface 40A of the cylindrical portion 40 and the inserted body 21 with the filling member 45, the partition penetrating processing structure 10 is formed. When the refractory material 41 is not attached to the cylindrical portion, the refractory material 41 may be disposed inside the cylindrical portion 40 and the filling member 45 may be filled. Also, as shown in FIG. 9, when the engaging portion 50 has a tapered shape with a tapered tip, when the engaging portion 5 is passed through the through hole 13A, the engaging portion 5 is pressed by the inner peripheral surface of the through hole 13A and bends toward the center of the through hole 13A, so that it is retracted radially inward. Therefore, the engaging portion 5 can easily pass through the through hole 13A.

[0039] Next, as shown in FIG. 10, in the same manner as the construction method of the partition penetrating processing structure 10 on one opening 13C side of the partition portion 11, the construction method of the partition penetrating processing structure 10 on the other opening 13D side is implemented.

[0040] According to the above-described embodiment, by inserting the engaging portion 5 into the partition penetration portion 15 and sandwiching the partition portion 11 between the cover portion 3 and the engaging portion 5 from both sides, the partition penetration processing member 1 can be fixedly installed in the partition penetration portion 15 to form the partition penetration structure 10. Therefore, without the need for a filling operation for the gap of the through-hole due to putty or the like, the partition penetration structure can be formed by a simple operation, and the time required for construction can also be shortened. In addition, since the operation of forming the partition penetration structure 10 is standardized, even an operator with a low level of skill can appropriately construct the partition penetration structure.

[0041] [Other Embodiments] The present invention is not limited to the configuration of the above-described embodiment, and any improvement or modification may be made without departing from the technical idea of the present invention. For example, as shown in FIG. 11, the cylindrical portion 40 of the body portion 4 may have a top surface 42 on one end side, and a hole 42A for passing the insertion body 21 may be provided in the top surface 42, and the insertion body 21 may be inserted inside. By providing the top surface 42 on the body portion 4, the fire resistance and the aesthetics can be improved. The hole 42A may be circular, but may have any shape other than circular according to the shape of the insertion body 21. The hole 42A may be smaller than the size of the insertion body 21. Further, instead of the hole 42A, a cut may be provided. Even if the size of the hole 42A is smaller than that of the insertion body 21, or even if a cut is provided instead of the hole 42A, when the top surface 42 of the cylindrical portion 40 is formed of a rubber or resin material, when the insertion body 21 is inserted into the hole 42A (or the cut), the top surface 42 is bent and the insertion body 21 can be inserted into the hole 42A (or the cut). Further, one end side of the cylindrical portion 40 of the body portion 4 may be shielded by a shielding member (not shown) such as a sheet that is separate from the body portion 4. When the shielding member is provided or the top surface 42 is provided to shield the opening on one end side, the filling member 45 can be appropriately omitted.

[0042] In the above description, the through holes 13A and 13B in the partition portion 11 are shown as circular, but they may be square or rectangular. In that case, the body portion 4 can be square or rectangular according to the shapes of the through holes 13A and 13B. The body portion 4 can be made square or rectangular by engaging and integrating U-shaped or L-shaped separate members.

[0043] Also, in the above description, the engaging portions 5 provided in the partition through-processing member 1 are shown as two, but they are not limited to two. As shown in FIG. 12, there may be a large number such as four. As the number of the engaging portions 5 increases, the adjuster mechanism 6 may have the same number. By increasing the number of the engaging portions 5, the partition through-processing member 1 can be more stably fixed to the partition through portion 15.

[0044] In the above description, the partition portion 11 is a hollow wall having a hollow portion 13 inside, but it is not limited to a hollow wall and may be a wall without a hollow provided, for example, a wall made of a single wall material. Also, the partition portion 11 is not limited to the wall of a building and may be the ceiling or floor of a building. Even in the case of the ceiling or floor, the partition portion may have a structure having a hollow portion between two partition materials, or may have a structure without a hollow portion and may be composed of, for example, a single partition material.

[0045] In the above description, the partition through-processing structure 10 is shown as being formed in any one of the wall, ceiling, and floor as the partition portion 11 of a building, but it may be formed at the joining portion between the ceiling and the wall or at the joining portion between the floor and the wall. Since the through holes 13A and 13B formed at the joining portion have, for example, a circular, elliptical, square, rectangular, or a shape lacking a part of a shape approximating these, the partition through-processing material 1 may be able to satisfy the fire resistance required performance by arranging one of the divided ones. In one partition through-processing material 1 divided into a plurality, fixing only by the engaging portion 5 is insufficient, so it can be made into the partition through-processing structure 10 by fixing it to the partition portion 11 by adhesion, sticking, physical fixing, etc. using the cover portion 3.

[0046] In the above description, it has been described on the premise that the partition penetration treatment members 1 having the same structure are provided at both openings 13C and 13D (i.e., both sides of the partition portion 11) of the partition portion 11. However, partition penetration treatment structures 10 having different structures may be provided at the respective openings 13C and 13D.

[0047] [Reference Embodiment] As shown in FIG. 13, the partition penetration structure as a reference embodiment includes an insertion member 70 that is inserted into the partition penetration portion 15 in a sleeve shape and through which an insertion body 21 passes inside the sleeve. The insertion member 70 is in a sleeve shape or can be deformed into a sleeve shape. The insertion member 4 that can be deformed into a sleeve shape means that a sheet-like or roll-like member is inserted into the partition penetration portion 15 in a sleeve shape with the ends facing each other. The thickness of the insertion member 4 is not particularly limited, but is, for example, 0.01 to 10 mm, preferably 0.05 to 5 mm. The insertion member 70 preferably has flexibility so that it can be deformed into a sleeve shape. Further, the insertion member 70 is preferably composed of at least one of a refractory material and a non-combustible material, and examples thereof include mortar, a metal pipe such as a steel sleeve, and inorganic fibers and their molded bodies. The insertion member 70 may have a circular, elliptical, square, rectangular, or a shape approximating these shapes so that the outer peripheral surface can conform to the shape of the inner peripheral surface of the through holes 13A and 13B. By conforming the outer peripheral surface of the insertion member 70 to the shape of the inner peripheral surface of the through holes 13A and 13B, it is possible to prevent the hollow portion 13 from communicating with the outside of the partition portion 11.

[0048] The construction method of the partition penetration treatment structure according to the reference embodiment is as follows: First, the insertion member 70 is arranged in the partition penetration portion 15. Examples of means for fixing the insertion member 70 to the partition penetration portion 15 include adhesion, adhesion, and physical fixation. Next, a partition penetration treatment material including the cover portion 3 and the body portion 4 is installed in the partition penetration portion 15 by fixing tools 71 such as screws and nails. Thereafter, the gap between the inner wall surface 40A of the cylindrical portion 40 and the inserted body 21 may be filled with a filling member 45. Further, when the refractory 41 is not attached to the cylindrical portion 40, the refractory 41 may be disposed inside the cylindrical portion 40 and the filling member 45 may be filled therein. Furthermore, in this embodiment, a top surface 42 may be provided on one end side of the cylindrical portion 40, or it may be shielded by a shielding member. By the above construction, an insertion member 70 that passes from one through-hole 13A to the other through-hole 13B is provided in the partition penetration portion 15, and it is possible to prevent the outside of the hollow portion 13 and the partition portion 11 from communicating. Further, the partition penetration portion 15 can be formed into a partition penetration treatment structure by a partition penetration treatment member including the cover portion 3 and the body portion 4.

Explanation of Reference Numerals

[0049] 1 Partition penetration treatment member 1A, 1B Split pieces 3 Cover portion 4 Body portion 5 Engagement portion 6 Adjuster mechanism 10 Partition penetration structure 11 Partition portion 11A1, 11B1 Outer surfaces 11A2, 11B2 Inner surfaces 12A, 12B Wall materials 13 Hollow portion 13A, 13B Through-holes 13C, 13D Openings 15 Partition penetration portion 21 Inserted body 40 Cylindrical portion 40A Inner wall surface 40B Outer wall surface 41 Refractory 42 Top surface 42A Hole 45 Filling member 50 Engagement site 50A First return portion 50B Second return portion 60 Groove 61 Block 70 Insertion member 71 Fixture

Claims

1. A sectional penetration processing member having a fireproof structure for a sectional penetration portion formed in a partition portion of a building and through which a long insertion body is inserted, a cover portion having one surface in contact with the outer surface of the partition portion and covering an opening of the sectional penetration portion provided in the partition portion, a body portion having a cylindrical portion protruding to the other surface side of the cover portion and provided with a refractory material inside, and the insertion body being inserted into the cylindrical portion, and an engaging portion provided to protrude to one surface side of the cover portion and having an engaging portion that comes into contact with and engages with the inner surface of the partition portion. The cover portion extends outward in the radial direction of the cylindrical portion, The sectional penetration processing member fixed to the sectional penetration portion by sandwiching the partition portion between the cover portion and the engaging portion from both sides.

2. The sectional penetration processing member according to claim 1, further comprising an adjuster mechanism for adjusting the positional relationship between the inner surface of the partition portion and the engaging portion in the thickness direction of the partition portion.

3. The sectional penetration processing member according to claim 2, wherein the adjuster mechanism is provided on an inner wall surface or an outer wall surface of the body portion.

4. The sectional penetration processing member according to claim 2, wherein the adjuster mechanism is provided on the cover portion.

5. The sectional penetration processing member according to any one of claims 2 to 4, wherein the adjuster mechanism can adjust the positional relationship of the engaging portion with respect to the partition portion stepwise.

6. The sectional penetration processing member according to any one of claims 1 to 5, which is divisible.

7. The sectional penetration processing member according to any one of claims 1 to 6, wherein the refractory material is a thermally expandable member that expands upon heating.

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