JP2018109283A - Sleeve, compartment penetration structure, and refractory filling structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compartment penetration structure capable of reducing sound leakage through a compartment through hole.SOLUTION: Disclosed compartment penetration structure has a compartment through hole 11 which is formed in a floor or wall of an architectural structure for allowing a piping or wiring 12 to be inserted therethrough. The compartment through hole 11 is constituted of a hollow part 10 of a cylindrical sleeve 1. The material constituting the sleeve 1 contains a material having vacant spaces therein.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sleeve for forming a partition through hole in a floor or wall of a building, a partition through structure including the sleeve, and a fireproof filling structure.

Conventionally, a through hole is formed in a wall body such as a floor of a building or a partition wall, and piping is inserted through the through hole. In order to keep the temperature of the fluid passing through the pipe, the surface of the pipe is covered with a sheet made of a heat insulating material (hereinafter referred to as a heat insulating sheet) (for example, Patent Document 1). The heat insulating sheet has a predetermined thickness, and is wound around the surface of the pipe in advance before the pipe is passed through the through hole.

JP 2004-27554 A

By the way, when the pipe covered with the heat insulating sheet is inserted into the through hole as described above, the heat insulating sheet does not have a soundproofing / deodorizing function, or a large diameter through hole is provided to improve workability Therefore, excessive sound leakage may occur through the through hole.

  Accordingly, an object of the present invention is to provide a partition through structure in which piping or wiring is inserted into the partition through hole, and which can suppress the sound leakage through the partition through hole. .

  To achieve the above object, the present invention includes the subject matter described in the following section.

Item 1. A section through structure in which piping or wiring is inserted into a section through hole formed in a floor or wall of a building,
The partition through hole is constituted by a hollow portion of a cylindrical sleeve,
A compartment-penetrating structure, wherein the material constituting the sleeve includes a material having a void inside.

Item 2. The sleeve is composed of a plurality of continuous cylinders,
Item 2. The partition-penetrating structure according to Item 1, wherein at least one of the plurality of cylinders is formed using a material having a gap inside.

Item 3. The sleeve is
A first cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
A second cylinder having thermal expansibility;
A third cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
One end side of the second cylinder is inserted into the enlarged diameter part of the first cylinder, and the other end side of the second cylinder is inserted into the enlarged diameter part of the third cylinder, The first cylinder, the second cylinder, and the third cylinder are connected to form the sleeve,
Item 3. The partition penetration structure according to Item 2, wherein at least one of the first cylinder, the second cylinder, and the third cylinder is formed using a material having a gap inside.

  Item 4. The sleeve according to Item 5, wherein the first cylinder and the third cylinder have non-expandability.

Item 5. The sleeve is
A first cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
A second tubular body having thermal expansibility,
The one end side portion of the second cylinder is inserted into the enlarged diameter portion of the first cylinder, so that the first cylinder and the second cylinder are connected to form the sleeve,
Item 3. The partition through structure according to Item 2, wherein at least one of the first cylinder and the second cylinder is formed using a material having a gap inside.

  Item 6. Item 4. The partition-penetrating structure according to Item 3, wherein the first cylindrical body has non-expandability.

  Item 7. Item 7. The compartment penetrating structure according to Item 1 to 6, wherein the material having voids therein is a foamed material that creates voids by foaming.

  Item 8. Item 8. The partition penetration structure according to Item 7, further comprising piping or wiring inserted through the hollow portion.

  According to the partition penetrating structure of the present invention, the material constituting the sleeve includes a material having a gap inside, so that sound that has entered the partition through hole is absorbed by the sleeve. Therefore, sound leakage through the partition through hole can be suppressed to a small level.

The disassembled schematic perspective view of the sleeve of one Embodiment of this invention. The side sectional view of a sleeve. (A) Top view of a 1st cylinder and a 3rd cylinder, (B) Side sectional view, (C) Bottom view. (A) Top view of 2nd cylinder, (B) Side sectional view, (C) Bottom view. The schematic sectional drawing of the construction method of the division penetration structure of this invention using the sleeve of FIG. The sectional side view which shows the state which the 2nd cylinder expanded. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example. The sectional side view of the sleeve of another example.

  Hereinafter, the sleeve 1 which concerns on embodiment of this invention is demonstrated, referring drawings. The sleeve 1 according to the present embodiment is also referred to as a void, and is used for forming a partition through hole in a floor or wall of a building. The above-mentioned “building” is, for example, 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, or a vehicle. However, the building to which the sleeve of the present invention is applicable is not limited to the above example.

  As shown in FIGS. 1 to 3, the sleeve 1 includes a first cylindrical body 2, a second cylindrical body 3, a third cylindrical body 4, a non-inflatable material 5 (FIG. 2), and a fixed frame 6. The hollow part 10 (FIG. 2) is configured by connecting the inside 7 of the first cylinder 2, the inside 8 of the second cylinder 3, and the inside 9 of the third cylinder 4 (hereinafter referred to as the first cylinder 2). (As a general term for the first cylindrical body 2, the second cylindrical body 3, and the third cylindrical body 4, they are appropriately referred to as cylindrical bodies 2 to 4).

  The sleeve 1 is fixed in the formwork K together with the reinforcing bar R. The concrete C is poured into the formwork K, so that the concrete C is placed around the outside of the sleeve 1. And the floor or wall of a building is formed when the concrete C hardens | cures, and the sleeve 1 will be in the state installed in the floor base or wall base which consists of the reinforcing bar R and the concrete C. The hollow portion 10 of the sleeve 1 functions as a partition or through hole 11 on the floor or wall, and a pipe or wiring 12 is inserted into the partition through hole 11 (hollow portion 10). The pipe includes various pipes such as a water pipe, a refrigerant pipe, a heat medium pipe, a gas pipe, and an intake / exhaust pipe. The wiring 12 includes various cables such as a power cable and a communication cable.

  The sleeve 1 of this embodiment has high sound absorption, and can prevent sound leakage through the partition through hole 11 (hollow portion 10) and sound leakage through the joint T of the cylindrical bodies 2-4. (The joints T of the tubular bodies 2 to 4 include the joint T1 between the first tubular body 2 and the second tubular body 3, the joint T2 between the second tubular body 3 and the third tubular body 4, A joint T3 between the first cylinder 2 and the third cylinder 4 is included). When a fire occurs, the sleeve 1 causes thermal expansion of the second cylindrical body 3 (FIG. 6) and closes the partition through hole 11 (hollow portion 10), so that the partition through hole 11 (hollow portion 10). ) To prevent the propagation of fire. Furthermore, the sleeve 1 has the non-expandable material 5 and the fixed frame 6 positioned in the partition through-hole 11 (hollow part 10), so that when the fire does not occur, there is no concern about the psychological aspects of the residents and the like. 11 to prevent sound leakage, water leakage and smoke leakage. Hereinafter, the structures of the cylindrical bodies 2 to 4, the non-expandable material 5, and the fixed frame 6 included in the sleeve 1 will be described in detail.

  The first cylinder 2 and the third cylinder 4 have the same structure. Therefore, hereinafter, the same reference numerals are assigned to the configurations of the first cylinder 2 and the third cylinder 4, and the description of the first cylinder 2 and the third cylinder 4 will be collectively performed. Hereinafter, the first cylinder 3 and the third cylinder 4 are collectively referred to as first and third cylinders 2 and 4.

  Each of the first and third cylindrical bodies 2 and 4 includes a substantially cylindrical main body 13 and a substantially cylindrical enlarged diameter portion 15 continuous through the main body 13 and the stepped portion 14 (FIG. 1 to 4). In the first and third cylinders 2 and 4, the material constituting the main body portion 13, the stepped portion 14, and the diameter-expanded portion 15 may be a non-thermally expandable material that does not expand due to the heat of fire or heat applied during molding. The foaming material which foams and produces the space | gap Q inside is contained.

  The non-thermally expandable material is, for example, a metal such as steel, copper, or stainless steel, or a non-thermally expandable refractory resin material such as an acrylic resin, an epoxy resin, a polypropylene resin, or vinyl chloride.

  The foam material is a thermally expandable microcapsule, a water-containing microcapsule, an inorganic foaming agent, an organic foaming agent, a microencapsulated foaming agent, a thermally expandable layered inorganic material, or a combination thereof.

  The heat-expandable microcapsule has a temperature below the softening point of the polymer in a shell formed from a plastic polymer obtained by polymerizing a composition containing one or more types of monomers and a crosslinking agent. A volatile swelling agent that becomes gaseous at about 150 ° C. to 250 ° C. is included. As the above heat-expandable microcapsule, for example, from a polymer obtained by polymerizing a monomer mixture in which the shell contains 95% by weight or more of (meth) acrylonitrile and 70% by weight or more in (meth) acrylonitrile is acrylonitrile. And having a degree of crosslinking of 60% by weight or more, such a thermally expandable microcapsule is described in WO2010 / 052972. When the polymer contains monomers other than (meth) acrylonitrile, such monomers include monomers selected from the group consisting of methacrylic acid esters, acrylic acid esters, styrene, vinylidene chloride and vinyl acetate.

  Examples of the volatile swelling agent include a low boiling point organic solvent and a compound that is thermally decomposed by heating to become a gaseous state, and are preferably used. Among them, a low boiling point organic solvent is particularly preferably used. These volatile swelling agents may be used alone or in combination of two or more.

  Examples of the low-boiling organic solvent include ethane, ethylene, propane, propene, n-butane, isobutane, n-butene, isobutene, n-pentane, isopentane, neopentane, n-hexane, heptane, nonane, decane, petroleum Hydrocarbons such as ether; chlorofluorocarbons such as CCl3F, CCl2F2, CClF3, CClF2-CCl2F2; and tetraalkylsilanes such as tetramethylsilane, trimethylethylsilane, trimethylisopropylsilane, and trimethyl-n-propylsilane. Of these, hydrocarbons such as n-butane, isobutane, n-pentane, isopentane, n-hexane, nonane, decane, and petroleum ether can be used, and those having 3 to 12 carbon atoms are preferably used. Further, straight chain hydrocarbons and esters may be used together. Particularly preferred are hydrocarbons having 4 or more carbon atoms. These low boiling point organic solvents may be used alone or in combination of two or more.

  The microcapsule containing water is the above-described microcapsule enclosing water.

  Examples of the inorganic foaming agent include gas generating materials that are inorganic compounds such as water and sodium hydrogen carbonate. These inorganic foaming agents can be used alone or in combination of two or more.

  Examples of the organic foaming agent include ethane, ethylene, propane, propene, n-butane, isobutane, n-butene, isobutene, n-pentane, isopentane, neopentane, n-hexane, heptane, nonane, decane, petroleum ether, and the like. Hydrocarbons containing azo compounds such as azodicarbonamide (ADCA) and azodiaminobenzene; nitroso compounds such as dinitrosopentamethylenetetramine (DPT) and N, N'-dinitroso-N, N'-dimethylterephthalamide Containing foaming agents; sulfonyl hydrazide-containing foaming agents such as benzenesulfonyl hydrazide, p, p′-oxybisbenzenesulfonyl hydrazide (OBSH), hydrazodicarbonamide (HDCA), and the like. One or more of these organic foaming agents can be used in combination.

  The microencapsulated foaming agent is one in which one or more of the above foaming agents are encapsulated in a microcapsule. As the synthetic resin used for the microcapsule, for example, a thermoplastic synthetic resin having a viscosity that melts when the temperature reaches a certain temperature or more and expands into a substantially spherical shape without cracking the microcapsule may be used.

  By adding a microencapsulated foaming agent to the materials constituting the first and third cylinders 2 and 4, the synthetic resin melts when heated above a certain temperature during molding. The material can be foamed.

  A plate-like fixing portion 16 is attached to one end of the first and third cylinders 2 and 4 (the end of the main body portion 13 on the opposite side of the stepped portion 14) (in the illustrated example, the first cylinder body). One end of 2 corresponds to the lower end of the first cylinder 2, and one end of the third cylinder 4 corresponds to the upper end of the third cylinder 4). The fixing portion 16 is made of, for example, metal, and extends vertically outward with respect to the axes of the first and third cylinders 2 and 4. As shown in FIG. 3, four fixing portions 16 are attached to the first and third cylinders 2 and 4, respectively. These four fixing portions 16 are the first and third cylinders 2 and 4. Are provided at equal intervals around the circumference.

  Each fixing portion 16 is formed with a hole 17 penetrating the fixing portion 16 in the thickness direction, and a fixing member such as a metal wire such as a wire, a bolt, a screw, or a nail can be passed through the hole 17. The sleeve 1 can be fixed by tying a metal wire passed through the hole 17 to the reinforcing bar R or screwing a fixing member (bolt, screw, nail) passed through the hole 17 into the mold K. In the illustrated example, the fixing member 18 passed through the hole 17 of the fixing portion 16 of the first cylindrical body 2 is screwed into the mold frame K, whereby the sleeve 1 is fixed. In the third cylinder 4, the fixing member 18 or the like is not passed through the hole 17, and the fixing portion 16 is not used for the fixing purpose. However, the third cylinder 4 also includes the first cylinder 2 and the third cylinder 4. Similarly, the purpose of forming the fixing portion 16 is to reduce the labor for manufacturing the sleeve 1 by making the structures of the first cylinder 2 and the third cylinder 4 the same.

  As shown in FIGS. 1, 2, and 4, the second cylinder 3 has a substantially cylindrical shape, and, as shown in FIG. 2, the one end side (lower part) of the second cylinder 3 is the first one. The first cylinder 2 is fitted into the enlarged diameter portion 15, and the other end side (upper portion) of the second cylinder 3 is fitted into the enlarged diameter portion 15 of the third cylinder 4. And by performing the above-mentioned fitting, the inside 7 of the 1st cylinder 2, the inside 8 of the 2nd cylinder 3, and the inside 9 of the 3rd cylinder 4 are continued, and the hollow part 10 is comprised. It is like that. In addition, in the state where the second cylinder 3 is fitted to the first and third cylinders 2 and 4 as described above, one end (lower end) of the second cylinder 3 is connected to the step portion 14 of the first cylinder 2. The other end (upper end) of the second cylinder 3 comes into contact with the step portion 14 of the first cylinder 2. This is because the height P (FIG. 4) of the second cylindrical body 3 is the height D (FIG. 3) of the enlarged diameter portion 15 of the first cylindrical body 2 and the height of the enlarged diameter portion 15 of the third cylindrical body 4. D (FIG. 3) and 2D in total, and the outer diameter A (FIG. 4) of the second cylinder 3 is equal to the inner diameter B (FIG. 3) of the main body 13 of the first and third cylinders 2 and 4. Is larger than In the state where the second cylindrical body 3 is fitted to the first and third cylindrical bodies 2 and 4 as described above, the first cylindrical body 3 extends on the extension of the inner peripheral surface 3a (FIG. 2) of the second cylindrical body 3. The inner peripheral surface 13a of the main body 13 of the third cylinders 2 and 4 is located. This is because the inner diameter E (FIG. 4) of the second cylinder 3 is equal to the inner diameter B (FIG. 3) of the main body 13 of the first and third cylinders 2, 4.

  The second cylinder 3 is formed from a thermally expandable fireproof resin material. The refractory resin material is a resin composition containing a thermally expandable layered inorganic substance as a resin component. When forming the second cylindrical body 3, each component of the resin composition is subjected to a known apparatus such as a single screw extruder, a twin screw extruder, a Banbury mixer, a kneader mixer, a kneading roll, a lye machine, a planetary stirrer, or the like. And kneading. And the 2nd cylinder 3 is obtained by carrying out injection molding of the kneaded refractory resin material. In addition, the refractory resin material which forms the 2nd cylinder 3 is made into the thing which produced the space | gap Q inside by raising the temperature of a metal mold | die to 200 to 300 degreeC in the case of injection molding. Moreover, the foam Q may be included in the material which forms the 2nd cylinder 3, and the space | gap Q may be produced inside the 2nd cylinder 3 by making the said foam material foam with the heat | fever at the time of shaping | molding. The foam material may be, for example, the above-described heat-expandable microcapsule, water-containing microcapsule, inorganic foaming agent, organic foaming agent, microencapsulated foaming agent, heat-expandable layered inorganic material, or a combination thereof. is there.

  As said resin component, a well-known resin component can be used widely, For example, a thermoplastic resin, a thermosetting resin, a rubber substance, and those combinations are mentioned.

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

  Examples of the thermosetting resin include synthetic resins such as polyurethane, polyisocyanate, polyisocyanurate, phenol resin, epoxy resin, urea resin, melamine resin, unsaturated polyester resin, and polyimide.

  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 And rubber materials such as epichlorohydrin rubber, polyvulcanized rubber, non-vulcanized rubber, silicon rubber, fluororubber, and urethane rubber.

  These synthetic resins and / or rubber substances can be used singly or in combination.

  Among these synthetic resins and / or rubber substances, those having properties capable of flexibly adjusting properties such as cold resistance, heat resistance and oil resistance are preferable. In order to obtain a resin composition that is more flexible and easy to handle, a resin obtained by adding a plasticizer to a vinyl chloride resin is preferably used. Instead, an epoxy resin is preferable from the viewpoint of improving the fire resistance by increasing the flame retardancy of the resin itself.

  The thermally expandable layered inorganic material expands when heated. Such a heat-expandable layered inorganic material is not particularly limited, and examples thereof include vermiculite, kaolin, mica, and heat-expandable graphite. 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 may be further neutralized with ammonia, an aliphatic lower amine, an alkali metal compound, an alkaline earth metal compound, or the like. Examples of commercially available products of thermally expandable graphite include “GREP-EG” manufactured by Tosoh Corporation, “ADT-351” “ADT-501” manufactured by ADT Corporation, and “GRAFGUARD” manufactured by GRAFTECH Corporation.

  It is preferable that the said resin composition contains the said thermally expansible layered inorganic substance in 10-350 weight part with respect to 100 weight part of resin components, such as the said thermoplastic resin and an epoxy resin.

  The resin composition constituting the thermally expandable refractory material may further contain an inorganic filler. When the expanded heat insulating layer is formed, the inorganic filler increases the heat capacity and suppresses heat transfer, 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 ferrite; calcium hydroxide, magnesium hydroxide, Water-containing inorganic substances such as aluminum hydroxide and hydrotalcite; metal carbonates such as basic magnesium carbonate, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, barium carbonate and the like. In addition to these, 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-based balun, aluminum nitride, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balun, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, Examples include 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, and dewatered sludge. These inorganic fillers can be used alone or in combination of two or more.

  Among the inorganic fillers, specific examples of aluminum hydroxide include “Hijilite H-31” (manufactured by Showa Denko) with a particle size of 18 μm, “B325” (manufactured by ALCOA) with a particle size of 25 μm, and calcium carbonate. Examples thereof include “Whiteon SB Red” having a particle diameter of 1.8 μm (manufactured by Bihoku Flour Industries), “BF300” having a particle diameter of 8 μm (manufactured by Bihoku Flour Industries).

  The resin composition preferably contains an inorganic filler in the range of 30 to 400 parts by weight with respect to 100 parts by weight of the resin component such as the thermoplastic resin and epoxy resin.

  The total of the thermally expandable layered inorganic material and the inorganic filler is preferably in the range of 50 to 600 parts by weight with respect to 100 parts by weight of the resin component.

  Furthermore, the resin composition constituting the thermally expandable refractory material 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 polyphosphate; compounds represented by the following chemical formula (1). Among these, red phosphorus, ammonium polyphosphate, and a compound represented by the following chemical formula (1) are preferable from the viewpoint of fireproof performance, and ammonium polyphosphate is more preferable in terms of performance, safety, cost, and the like.

In the chemical formula (1), R ¹ and R ³ represent hydrogen, a linear or branched alkyl group having 1 to 16 carbon atoms, or an aryl group having 6 to 16 carbon atoms. R ² 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 carbon. The aryloxy group of Formula 6-16 is represented.

  As red phosphorus, commercially available red phosphorus can be used, but from the viewpoint of safety such as moisture resistance and not spontaneously igniting during kneading, a material in which the surface of red phosphorus particles is coated with a resin is preferably used. The ammonium polyphosphate is not particularly limited, and examples thereof include ammonium polyphosphate and melamine-modified ammonium polyphosphate. Ammonium polyphosphate is preferably used from the viewpoint of handleability and the like. 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, and examples thereof include methylphosphonic acid, dimethyl methylphosphonate, diethyl methylphosphonate, ethylphosphonic acid, n-propylphosphonic acid, n-butylphosphonic acid, and 2-methylpropylphosphone. Acid, t-butylphosphonic acid, 2,3-dimethyl-butylphosphonic acid, octylphosphonic acid, phenylphosphonic acid, dioctylphenylphosphonate, dimethylphosphinic acid, methylethylphosphinic acid, methylpropylphosphinic acid, diethylphosphinic acid, dioctylphosphine Examples include acids, phenylphosphinic 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 said phosphorus compound can also be used independently and can also use 2 or more types together.

  Such a resin composition expands by heating to form a refractory heat insulating layer. According to this composition, the thermally expandable refractory material expands by heating such as a fire and can obtain a necessary volume expansion coefficient. After expansion, the heat expandable refractory material has a predetermined heat insulating performance and can also form a combustion residue. Stable fireproof performance can be achieved.

  Furthermore, the resin composition is a range that does not impair the object of the present invention, and if necessary, other than antioxidants such as phenols, amines, sulfurs, etc., metal damage inhibitors, antistatic agents, stabilizers. , Crosslinking agents, lubricants, softeners, pigments, tackifier resins, additives such as molding aids, and tackifiers such as polybutene and petroleum resins.

  The heat-expandable refractory resin material is available as a commercial product. For example, a fire barrier manufactured by Sumitomo 3M Limited (a heat-expandable refractory material comprising a resin composition containing chloroprene rubber and vermiculite, expansion ratio: 3 times) , Thermal conductivity: 0.20 kcal / m · h · ° C., Mitsui Metal Paint Co., Ltd. medhihi cut (a thermally expandable refractory material comprising a resin composition containing polyurethane resin and thermally expandable graphite, expansion coefficient: 4 times , Thermal conductivity: 0.21 kcal / m · h · ° C.), and heat-expandable refractory materials such as Sekisui Chemical Co., Ltd. Fiblock.

The heat-expandable refractory material is not particularly limited as long as the heat-expandable refractory material is insulated by the expansion layer when exposed to a high temperature such as a fire and has strength of the expansion layer. It is preferable if the volume expansion coefficient after heating for 30 minutes under a heating condition of 50 kW / m ² is 3 to 50 times. When the volume expansion coefficient is 3 times or more, the expansion volume can sufficiently fill the burned-out portion of the resin component, and when it is 50 times or less, the strength of the expansion layer is maintained and flame penetration is prevented. Effect is maintained.

  By forming the second cylinder 3 from a heat-expandable refractory resin material, the adhesion between the second cylinder 3 and the concrete C is improved (when the fire occurs, the second cylinder 3 and the concrete C of the combustion residue) The heat-insulating layer is less likely to collapse. Moreover, the intensity | strength with respect to an external impact can be increased by forming the 1st, 3rd cylinders 2 and 4 with non-thermally expansible materials, such as a metal. In addition, since the amount of the expansion material used can be minimized, the sleeve 1 can be provided at an appropriate price. As described above, the sleeve 1 is configured by combining the non-thermally expandable first and third cylinders 2 and 4 and the thermally expandable second cylinder 3 to provide fire resistance to the partition through structure. Furthermore, it has both strength against external impact and adhesion to concrete C, and can be provided at an appropriate price.

  The non-expandable material 5 and the fixed frame 6 are arranged in a range other than the inside 8 of the second cylinder 3 in the hollow portion 10 (the non-expandable material 5 and the fixed frame 6 are the same as those of the second cylinder 3 described above. It is arranged in a space between the pipe or wiring 12 and the sleeve 1 in a range other than the inside 8). That is, as shown in FIG. 2, the non-expandable material 5 is disposed in the inside 13 b of the main body 13 of the first cylinder 2 or in the inside 13 b of the main body 13 of the third cylinder 4 (the above-described first first). The interior 13b of the main body 13 of the third cylinders 2 and 4 is a part of the interiors 7 and 9 of the first and third cylinders 2 and 4). The fixed frame 6 is disposed at the upper end of the interior 9 of the third cylinder 4 (the upper end of the interior 9 of the third cylinder 4 is the end of the interior 13 b of the main body 13 opposite to the stepped portion 14. Equivalent to

  The non-intumescent material 5 is formed from a non-intumescent material that is incombustible or flame retardant. Nonflammable or flame-retardant non-intumescent substances are, for example, inorganic materials such as glass wool and rock wool, nonflammable urethane, PTFE, polyvinyl chloride, and phenol resin compounds.

  The fixed frame 6 has an annular shape, and a pipe or wiring 12 is inserted through a hole 28 (FIG. 1) in the center thereof. The fixed frame 6 may be formed from a metal, or may be formed from a non-fire resistant or fire resistant resin composition. Preferably, the fixed frame 6 is formed from a non-intumescent material that is nonflammable or flame retardant. Nonflammable or flame-retardant non-intumescent substances include, for example, metals such as steel, copper, and stainless steel, non-thermally-expandable refractory resin materials such as acrylic resin, epoxy resin, polypropylene resin, vinyl chloride, and butyl rubber, A non-fire resistant resin composition containing a flame retardant such as a bromine compound, a phosphorus compound, a chlorine compound, an antimony compound, a metal hydroxide, a nitrogen compound, or a boron compound. The fixed frame 6 may be further provided with a finishing layer such as a coating or coloring so as to give an aesthetic appearance.

  Next, with reference to FIG. 5, a method for constructing the partition through structure using the sleeve 1 will be described.

  First, the sleeve 1 is fixed in the mold K. Specifically, as shown in FIG. 5A, by passing the fixing member 29 (bolt) through the hole 17 of the fixing portion 16 of the second cylindrical body 3 and screwing the fixing member 29 into the formwork K, The sleeve 1 is fixed. A hole for inserting a pipe or wiring 12 (see FIG. 5C) is made at the position of the mold K facing the hollow portion 10 of the sleeve 1. Further, the sleeve 1 may be fixed to the reinforcing bar R by connecting a metal wire passed through the hole 17 of the fixing part 16 of the second cylindrical body 3 to the reinforcing bar R.

  Next, as shown in FIG. 5 (B), concrete C is poured into the mold K. As a result, the concrete C is placed around the outside of the sleeve 1, and the hollow portion 10 of the sleeve 1 functions as the partition through hole 11. In this case, as in the example of FIG. 5B, by making the thickness H of the concrete C equal to the height L from the lower end of the first cylinder 2 to the upper end of the third cylinder 4, Although it is preferable to bury the entire height of the sleeve 1 in the concrete C, the concrete C may be placed so that a part of the sleeve 1 (such as the upper end of the third tubular body 4) comes out of the concrete C (that is, The thickness C of the concrete C may be made lower than the height L of the sleeve 1).

  Next, as shown in FIG. 5C, one or a plurality of pipes or wires 12 are inserted through the hollow portion 10 (the partition through hole 11). In addition, the non-expandable material 5 is disposed in a range other than the inside 8 of the second cylindrical body 3 in the hollow portion 10. Specifically, the non-expandable material 5 is disposed in the inside 13 b of the main body 13 of the first cylinder 2 or the inside 13 b of the main body 13 of the third cylinder 4. At this time, for the purpose of filling a gap between the sleeve 1 and the concrete C, a filler (not shown) is filled around the outside of the sleeve 1, and then the partition through hole 11 (hollow The pipe 10 or the wiring 12 may be passed through the part 10).

  Next, as shown in FIG. 5D, the fixed frame 6 is arranged in a range other than the inside 8 of the second cylinder 3 in the hollow portion 10. Specifically, the fixed frame 6 is arranged at the upper end of the inside 9 of the third cylinder 4. Thus, the partition penetration structure 100 is completed.

  According to the partition penetrating structure 100 of the present embodiment, the first cylindrical body 2, the second cylindrical body 3, and the third cylindrical body 4 constituting the sleeve 1 are formed using a material having a gap Q therein. Therefore, it has high sound absorption, and the sound that has entered the partition through hole 11 (hollow part 10) and the joint T (FIG. 2) of the cylinders 2 to 4 is absorbed by the cylinders 2 to 4. . Thereby, the sound leak through the partition through-hole 11 (hollow part 10) and the sound leak through the joint of the cylinders 2-4 can be suppressed small.

  In addition, when a fire occurs from the direction of the arrow in FIG. 5D on the downstairs of the partition penetration structure 100, the second cylinder 3 is thermally expanded as shown in FIG. At this time, the first cylindrical body 2 and the third cylindrical body 4 sandwich the second cylindrical body 3 up and down, and the outside of the second cylindrical body 3 is the first and third cylindrical bodies 2 and 4. The expansion of the second cylindrical body 3 toward the axial direction of the sleeve 1 (vertical direction in FIG. 6) and the outside of the sleeve 1 (the side away from the piping or wiring 12) is restricted. The Therefore, since the expansion of the second cylinder 3 toward the inner side of the sleeve 1 (the side approaching the pipe or wiring 12) is promoted, the second cylinder 3 has no waste in closing the partition through hole 11. It causes expansion. For this reason, it is not necessary to increase the refractory resin material of the thermally expandable portion (second cylindrical body 3) constituting the sleeve 1, and the partition through hole 11 can be reliably closed. Therefore, it is possible to reliably close the partition through hole 11 while keeping the material cost of the sleeve 1 low.

Note that the volume V _{1 of} the material constituting the first cylinder 2, the volume V _{2 of} the material constituting the second cylinder 3,
The volume V _{3 of} the material constituting the third cylinder 4 preferably satisfies the following formula (2).

10 (%) ≦ V ₂ / (V ₁ + V ₃ ) × 100 (%) ≦ 80 (%) (2)
V ₁ : Volume of material constituting the first cylinder 2 V ₂ : Volume of material constituting the second cylinder 3 V ₃ : Volume of material constituting the third cylinder 4

When V ₂ / (V ₁ + V ₃ ) × 100 (%) is 10 (%) or more, the fire resistance of the sleeve 1 is sufficient. When (V ₂ ) / (V ₁ + V ₃ ) × 100 (%) is 80 (%) or less, the price of the sleeve 1 can be suppressed. Moreover, destruction of the fireproof structure such as pushing up of the non-expandable material 5 and the fixed frame 6 due to excessive expansion at the time of a fire is prevented.

  Further, according to the present embodiment, the gap between the sleeve 1 and the pipe or the wiring 12 is filled with the non-expandable material 5 or the fixed frame 6, so that the user's psychological aspect is uneasy when no fire occurs. Without giving, sound leakage, water leakage and smoke leakage through the partition through hole 11 (hollow part 10) can be reliably prevented. In addition, said user means the person who exists in the building where the sleeve 1 is used. For example, a resident who lives in a house as a building corresponds to the above user.

  Moreover, according to this embodiment, the non-expandable material 5 and the fixed frame 6 are disposed in the hollow portion 10 in a range other than the inside 8 of the second cylindrical body 3, so that the non-expandable material 5 and the fixed frame are disposed. 6 does not contact the second cylinder 3. As a result, when the fire occurs, the non-inflatable material 5 and the fixed frame 6 do not hinder the expansion of the second cylinder 3, so that the partition through hole 11 can be reliably closed by the expansion of the second cylinder 3. Further, the non-inflatable material 5 is disposed in the inside 13b of the main body 13 of the first cylinder 2 or the inside 13b of the main body 13 of the third cylinder 4, so that it is non-inflatable in the event of a fire. The material 5 restricts the expansion of the second cylindrical body 3 in the axial direction of the sleeve 1 (upward or downward in FIG. 6). Also from this point, the expansion of the second cylinder 3 toward the inner side of the sleeve 1 (on the pipe or wiring 12 side) is promoted, so that the partition through hole 11 can be reliably closed.

  Further, since the fixed frame 6 closes the gap between the sleeve 1 and the pipe or wiring 12, when the partition penetrating structure 100 is viewed from above, the inside of the partition through hole 11 cannot be seen, and the visual A beautiful aesthetic is also preserved.

  In addition, this invention is not limited to the said embodiment, It can change as follows.

  For example, in the said embodiment, the example which includes a non-thermally expansible material in the material which comprises the main-body part 13, the level | step-difference part 14, and the enlarged diameter part 15 in the 1st, 3rd cylinders 2 and 4 was shown. However, in the first and third cylindrical bodies 2 and 4, at least one of the main body portion 13, the stepped portion 14, and the enlarged diameter portion 15 may be formed using a thermally expandable material. In particular, the main body 13 of the first and third cylinders 2 and 4 may be formed of a material having a lower expansion ratio during heating than the second cylinder 3. In the above case, as shown in the following formula (3), the ratio between the expansion ratio of the main body 13 of the first and third cylinders 2 and 4 and the expansion ratio of the second cylinder 3 is 0. It is preferable that the number is less than 1.

0 ≦ (Expansion magnification of the main body 13 of the first and third cylinders 2 and 4 / Expansion magnification of the second cylinder 3) <1 Equation (3)

  Further, as described above, when the material constituting the first and third cylinders 2 and 4 includes a thermally expandable material, for example, when the first and third cylinders 2 and 4 are injection-molded. As the mold temperature is increased, the thermally expandable material has voids Q inside.

  In the above-described embodiment, the second cylinder 3 is fitted to the first and third cylinders 2 and 4, and the upper and lower ends of the second cylinder 3 are the first and third cylinders 2 and 4. Although the example which contact | abuts to the level | step-difference part 14 was shown, the lower end and upper end of the 2nd cylinder 3 are the step part 14 of the 1st cylinder 2, and the 3rd cylinder 4 like the sleeve 30 shown in FIG. It may be separated from the stepped portion 14. In this case, the gap L1 between the lower end of the second cylinder 3 and the stepped portion 14 of the first cylinder 2 is set so as to satisfy the following formula (4). Further, the gap L2 between the upper end of the second cylinder 3 and the stepped portion 14 of the third cylinder 4 is set so as to satisfy the following formula (5).

0 <L1 ≦ (1/2 of the length of the first cylinder 2) (4)
0 <L2 ≦ (1/2 of the length of the third cylinder 4) (5)

  By setting the gaps L1 and L2 so as to satisfy the expressions (4) and (5), respectively, the expansion of the second cylindrical body 3 in the axial direction of the sleeve 30 (vertical direction in FIG. 7) is suppressed to a small level. Thus, the expansion of the second cylinder 3 can be directed to the inside of the sleeve 30. Accordingly, the partition through hole 11 can be satisfactorily closed. As shown in FIG. 7, when the gaps L 1 and L 2 are generated between the second cylinder 3 and the first and third cylinders 2 and 4, the inside of the enlarged diameter portion 15 of the first cylinder 2. Annular projections 31 are respectively formed on the peripheral surface and the inner peripheral surface of the enlarged diameter portion 15 of the third cylindrical body 4. The annular protrusions 31 extend around the inner circumference of the first cylinder 2 and the third cylinder 4, and the annular protrusions 31 are in contact with the upper and lower ends of the second cylinder 3, The insertion of the second cylinder 3 into the third cylinders 2 and 4 is stopped.

  Moreover, in the said embodiment, although the outer side of the 2nd cylinder 3 is entirely surrounded by the enlarged diameter part 15 of the 1st, 3rd cylinders 2 and 4, the 1st cylinder like the sleeve 32 shown in FIG. Part of the outer peripheral surface of the second cylinder 3 may be exposed from the gap S between the second cylinder 3 and the third cylinder 4. In this case, the area of the outer peripheral surface of the second cylinder 3 exposed from the gap S, the area of the outer peripheral surface of the first cylinder 2, and the area of the outer peripheral surface of the third cylinder 4 are expressed by the following formula (6). It is set to satisfy.

  0 <(area of outer peripheral surface of second cylinder 3 exposed from gap S / total of outer peripheral surface of first cylinder 2 and area of outer peripheral surface of third cylinder 4) × 100 ≦ 100・ Formula (6)

  In Expression (6), “the outer peripheral surface of the second cylindrical body 3 exposed from the gap S” is the outer peripheral surface in the G range of FIG. 8 and is the outer peripheral surface of the second cylindrical body 3 in contact with the concrete C. Moreover, the outer peripheral surface of the 1st cylinder 2 in Formula (6) is an outer peripheral surface in F range (the whole height of the 1st cylinder 2) of FIG. Moreover, the outer peripheral surface of the 3rd cylinder 4 is an outer peripheral surface in the H range (the whole height of the 3rd cylinder 4) of FIG. When the above expression (6) is satisfied, the area of the outer peripheral surface of the first and third cylindrical bodies 2 and 4 is larger than the exposed area of the outer peripheral surface of the second cylindrical body 3, so that external impact (physical, It has the effect of increasing resistance to (chemical). In addition, it is preferable that the clearance gap S is as narrow as possible from the viewpoint of preventing sound leakage and preventing the outward expansion of the second cylinder 3 during a fire.

  Moreover, in the said embodiment, the internal diameter B (FIG. 3) of the main-body part 13 of the 1st, 3rd cylinders 2 and 4 and the internal diameter E (FIG. 4) of the 2nd cylinder 3 showed the example which corresponded. However, the inner diameter B of the main body 13 of the first and third cylinders 2 and 4 may be in the range of 90% to 110% of the inner diameter E of the second cylinder 3 (sleeve 33 shown in FIG. 9). Is a change in which the inner diameter B of the main body 13 of the first and third cylinders 2 and 4 is changed to 90% of the inner diameter E of the second cylinder 3). As described above, if the inner diameter B is 90% to 110% of the inner diameter E, the difference between the inner diameter B and the inner diameter E is small. Since the expansion of the second cylinder 3 toward the vertical direction in FIG. 9 is restricted, the expansion of the second cylinder 3 toward the inside of the sleeve can be promoted.

  Further, if it can be confirmed that there is no problem in practical durability such as fireproof performance, sound insulation and water leakage, the fixing frame 6 (FIG. 2 and the like) is omitted as in the sleeve 34 shown in FIG. Only the material 5 may be disposed inside the first and third cylinders 2 and 4. Alternatively, the non-expandable material 5 may be disposed inside the main body 13 of either the first cylinder 2 or the third cylinder 4 (as an example, FIG. A sleeve 35 in which the non-expandable material 5 is disposed only inside the main body 13 of the cylindrical body 2 is shown). Further, a lid member, a cover member, or a cap other than the fixed frame 6 may be used.

  Moreover, the cylinder which comprises the sleeve of this invention is not restricted only to the 1st cylinder 2, the 2nd cylinder 3, and the 3rd cylinder 4 which were shown to the said embodiment. That is, for the purpose of adjusting the height of the sleeve or the like, by connecting another cylinder to the main body 13 of the first cylinder 2 and / or the main body 13 of the third cylinder 4, the sleeve is You may comprise from four or more cylinders. For example, the sleeve 36 shown in FIG. 12 has five cylinders by connecting the cylinder 40 to the main body 13 of the first cylinder 2 and connecting the cylinder 41 to the main body 13 of the third cylinder 4. It consists of bodies 40, 2, 3, 4, 41. The 1st cylinder 2, the 2nd cylinder 3, and the 3rd cylinder 4 have the structure similar to what is shown in the said embodiment, and are formed using the material which has the space | gap Q inside. The cylinders 40 and 41 are the main body part 13, the step part 14, and the diameter-enlarged part 15, which are formed using a material (foaming material) having a gap Q inside, like the first cylinder body 2 and the third cylinder body 4. The main body 13 of the first cylinder 2 is fitted into the enlarged diameter portion 15 of the cylinder 40, and the main body 13 of the third cylinder 4 is inserted into the enlarged diameter portion 15 of the cylinder 41. It is designed to be fitted. A fixing portion 16 is attached to the main body portion 13 of the cylindrical body 40 located at the bottom, and a fixing member 29 (bolt) passed through the hole 17 of the fixing portion 16 is screwed into the mold K. It has become.

  In the above-described sleeve 36, the hollow portions 10 (the partition through holes 11) are configured by connecting the insides of the cylinders 40, 2, 3, 4, 41, and the pipes or wiring 12 are formed in the hollow portions 10 (the partition through holes 11). Is inserted. Further, the non-inflatable material 5 and the fixed frame 6 are arranged in a range other than the inside 8 of the second cylindrical body 3 in the hollow portion 10.

  According to the sleeve 36 described above, the cylinders 40, 2, 3, 4, 41 are formed using a material having a gap Q inside, so that the partition through-hole 11 (hollow part 10) and the cylinder are formed. Sound that has entered the joints 40, 2, 3, 4, 41 is absorbed by the cylinders 40, 2, 3, 4, 41. Thereby, sound leakage can be suppressed small. In addition, when a fire occurs, the second cylinder 3 is thermally expanded to close the partition through hole 11, thereby preventing the propagation of fire through the partition through hole 11. In addition, since the gap between the sleeve 1 and the pipe or wiring 12 is filled with the non-expandable material 5 or the fixed frame 6, the user's psychological aspect is not anxious when the fire does not occur. Sound leakage, water leakage and smoke leakage through the through-hole 11 (hollow portion 10) can be reliably prevented.

  Moreover, in order to make manufacture and assembly of a sleeve easy, you may comprise a sleeve from one or two cylinders. Hereinafter, a sleeve 37 shown in FIG. 13 will be described as an example in the case where the sleeve is constituted by two cylindrical bodies.

  A sleeve 37 shown in FIG. 13 includes a first cylinder 50 and a second cylinder 51 having a thermal expansion property. The first cylindrical body 50 includes a main body 52 and a diameter-expanded portion 54 that is continuous with the main body 52 via a stepped portion 53, and constitutes the main body 52, the stepped portion 53, and the diameter-expanded portion 54. The material includes the above-described non-thermally expandable material and a foam material having a void Q inside.

  The second cylinder 51 has a substantially cylindrical shape, and the upper portion of the second cylinder 51 (one end side portion of the second cylinder 51) is fitted into the enlarged diameter portion 54 of the first cylinder 50. Thus, the sleeve 37 is configured. The second cylinder 51 is obtained by injection-molding the same hot water as the second cylinder 3 shown in the above embodiment and a heat-expandable refractory resin material. It is assumed that the void Q is generated inside by increasing the mold temperature.

  An annular protrusion 55 is formed on the outer peripheral surface of the second cylinder 51. When the second cylinder 51 is fitted to the first cylinder 50, the lower end of the first cylinder 50 is an annular protrusion. The fitting of the second cylinder 20 into the first cylinder 50 is stopped at a position in contact with 55. The annular protrusion 55 may be formed from the above-described thermally expandable refractory resin material, or may be formed from a metal such as steel or a non-thermally expandable refractory resin material such as hard vinyl chloride. A fixing portion 16 is attached to the lower end of the second cylinder 51, and a fixing member 29 (bolt) passed through the hole 17 of the fixing portion 16 is screwed into the formwork K.

  In the sleeve 37, the hollow portion 10 (the partition through hole 11) is configured by connecting the inside 56 of the first tube body 50 and the inside 57 of the second tube body 51, and the hollow portion 10 (the partition through hole 11). Piping or wiring 12 is inserted. Further, the non-expandable material 5 and the fixed frame 6 are disposed in the hollow portion 10 in a range other than the inside 57 of the second cylinder 51 (specifically, the main body 52 of the first cylinder 50). The non-inflatable material 5 and the fixed frame 6 are disposed inside the inside.

  According to the sleeve 37 described above, the cylinders 50 and 51 are formed using the material having the gap Q inside, so that the partition through hole 11 (hollow part 10) and the joints of the cylinders 50 and 51 are formed. The intruding sound is absorbed by the cylinders 50 and 51. Thereby, sound leakage can be suppressed small. In addition, when a fire occurs, the second cylinder 51 is thermally expanded to block the partition through-hole 11, thereby preventing the propagation of the fire. In addition, since the gap between the sleeve 1 and the pipe or wiring 12 is filled with the non-expandable material 5 or the fixed frame 6, the user's psychological aspect is not anxious when the fire does not occur. Sound leakage, water leakage and smoke leakage through the through-hole 11 (hollow portion 10) can be reliably prevented.

  In addition, in the sleeves 1, 30, 32, 33, 34, 35, 36, and 37 shown in FIGS. 1 to 13, all of the plurality of cylindrical bodies constituting these are formed using a material having a gap Q therein. However, at least one of the plurality of cylinders may be formed using a material having a gap Q therein. That is, in the sleeves 1, 30, 32, 33, 34, and 35 shown in FIGS. 1 to 11, at least one of the cylindrical bodies 2, 3, and 4 may be formed using a material having a gap Q inside. . In the sleeve 36 shown in FIG. 12, at least one of the cylinders 40, 2, 3, 4 and 41 may be formed using a material having a gap Q inside. In the sleeve 37 shown in FIG. 13, at least one of the cylinders 50 and 51 may be formed using a material having a gap Q inside. Even if it does as mentioned above, since the material which has the space | gap Q is contained in the material which comprises the sleeve 1, 30, 32, 33, 34, 35, 36, 37, it penetrate | invades into the division | segmentation through-hole 11 (hollow part 10). The absorbed sound is absorbed by the sleeve, and sound leakage through the partition through hole 11 (hollow portion 10) can be suppressed to a small level.

  Further, the shape of the cylinder constituting the sleeve is not limited to the substantially cylindrical shape shown in the embodiment. In other words, the shape of the cylinder constituting the sleeve may be adapted to the desired shape of the partition through hole 11. For example, when the desired partition through hole 11 has a substantially elliptical cross section, the sleeve is formed. The cylinder to be made has an inside with a substantially elliptical cross section.

  In addition to the above-described sleeve, the above-described compartment penetration structure further includes any known fire-resistant filler, fire-resistant resin composition, fire-resistant sheet, fire-resistant metal plate, or the like in order to improve fire resistance. May be used.

  In the above embodiment, the example in which the sleeve 1 is constructed from above the floor has been described. However, the sleeves 1, 30, 32, 33, 34, 35, 36, and 37 shown in FIGS. 1 to 13 are constructed from below the floor. It is also possible to do. Further, the sleeves 1, 30, 32, 33, 34, 35, 36, and 37 are not only floors (including not only floors that are relatively concrete flooring materials but also ceiling floors), side walls, and the like. It can also be applied to other wall bodies. In this case, the sleeve is installed on a wall base made of, for example, concrete and reinforcing bars, and constitutes a partition through hole of the wall body.

1, 30, 32, 33, 34, 35, 36, 37 sleeve,
2,38 1st cylinder,
3,39 second cylinder,
4 third cylinder,
7,50 The inside of the first cylinder,
8,51 Inside the second cylinder,
9 Inside the third cylinder,
10 hollow part,
11 compartment through holes,
12 Wiring,
13 Main body of the first cylinder or the third cylinder,
14 Steps of the first cylinder and the third cylinder,
15 Diameter-enlarged portion of the first cylinder or the third cylinder,
40,41 another cylinder,
52 main body of the first cylinder,
53 steps of the first cylinder,
54, the enlarged diameter portion of the first cylinder,
100 compartment penetration structure

Claims (8)

A section through structure in which piping or wiring is inserted into a section through hole formed in a floor or wall of a building,
The partition through hole is constituted by a hollow portion of a cylindrical sleeve,
A compartment-penetrating structure, wherein the material constituting the sleeve includes a material having a void inside. The sleeve is composed of a plurality of continuous cylinders,
The partition penetration structure according to claim 1, wherein at least one of the plurality of cylinders is formed using a material having a gap inside. The sleeve is
A first cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
A second cylinder having thermal expansibility;
A third cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
One end side of the second cylinder is inserted into the enlarged diameter part of the first cylinder, and the other end side of the second cylinder is inserted into the enlarged diameter part of the third cylinder, The first cylinder, the second cylinder, and the third cylinder are connected to form the sleeve,
The partition penetration structure according to claim 2, wherein at least one of the first cylinder, the second cylinder, and the third cylinder is formed using a material having a gap inside.   The sleeve according to claim 5 with which said 1st cylinder and said 3rd cylinder have non-expandability. The sleeve is
A first cylindrical body having a main body portion and a diameter-expanded portion continuous with the main body portion via a stepped portion;
A second tubular body having thermal expansibility,
The one end side portion of the second cylinder is inserted into the enlarged diameter portion of the first cylinder, so that the first cylinder and the second cylinder are connected to form the sleeve,
The partition penetration structure according to claim 2, wherein at least one of the first cylinder and the second cylinder is formed using a material having a gap inside.   The division penetration structure according to claim 3 in which said 1st cylinder has non-expandability.   The partition penetrating structure according to claim 1, wherein the material having a void in the inside is a foam material that creates a void by foaming.   The partition penetrating structure according to claim 7, further comprising a pipe or a wiring inserted through the hollow portion.