Section penetration processing structure, section penetration processing material and construction method of section penetration processing structure

Abstract

To reduce unevenness of fireproof performance and easily confirm that a section penetration processing material is installed according to a regulation.SOLUTION: In a section penetration processing structure 10, a section penetration part 15 which is formed at a partition part 11 of a building and into which a long insertion body 21 is inserted is in a fireproof structure. The section penetration processing structure 10 comprises: a sheet shape member 18 blocking at least a part of a gap 13E between an opening 13C of the section penetration part 15 provided at the partition part 11 and the insertion body 21; and a tape shape member 19 wound one or more turns around the sheet shape member 21. At least one of the sheet shape member 18 and the tape shape member 19 has a fireproof material.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a compartment penetration structure formed in a partition section of a building or the like, a compartment penetration material for forming the compartment penetration structure, and a construction method for the compartment penetration structure. [Background technology]

[0002] In buildings such as apartment buildings, office buildings, and schools, compartment penetrations are often installed in partitions such as walls to allow the passage of long objects such as cables and pipes. Compartment penetrations are required to be designed with fire prevention measures (fireproof construction) to prevent the spread of fire to other compartments in the event of a fire in one compartment. Partitions are generally hollow walls, consisting of two walls with a hollow space between them.

[0003] Known methods for making compartment penetrations fireproof include filling the gap between the long insert and the penetration hole with fireproof putty or a fireproof pack containing fireproof putty inside a bag. When using an irregular filler, a tubular member made of fireproof material may also be placed inside the penetration hole of each wall section and between the insert (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6150933 [Patent Document 2] Patent No. 6348320 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when unshaped fillers are used to treat compartment penetrations, there is variation among workers, and sufficient fire protection performance may not be achieved. Furthermore, when installing fire-resistant materials and their accessories within the structure, it is sometimes unclear to what extent they have been installed (quantity, thickness, length, etc.), or it is difficult to determine whether they have been installed according to regulations. Therefore, in order to confirm whether fire-resistant materials have been installed according to regulations, it is necessary to destroy the compartment penetration structure and examine the internal structure.

[0006] Additionally, to reduce variations among workers, kits were available that combined parts of predetermined quantities and sizes, but these tended to have a large number of parts, making it easy for parts to be lost or forgotten to be installed. Additionally, packaging for each kit also created the problem of a large amount of waste.

[0007] Therefore, the present invention aims to provide a compartment penetration treatment structure, a construction method for a compartment penetration treatment structure, and a compartment penetration treatment material that reduces variation in fire resistance performance and allows easy confirmation that the compartment penetration treatment material is installed as specified. [Means for solving the problem]

[0008] The present invention has been made to solve the above problems, and the gist of the present invention is as follows. [1] A compartment penetration processing structure formed in a partition of a building and having a compartment penetration part into which a long penetrating body is inserted as a fireproof structure, a sheet-like member that closes at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; A tape-shaped member is wound around the insertion body one or more times, A compartment penetration treatment structure, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material. [2] The compartment penetration structure described in [1] above, wherein the sheet-like member and the tape-like member are visible from the outside. [3] A compartment penetration processing structure as described in [1] or [2] above, in which at least one of a fire-resistant material and an accessory connected to at least one of the tape-shaped member and the sheet-shaped member is arranged inside the compartment penetration portion. [4] A compartment penetration processing structure described in any one of [1] to [3] above, in which nothing other than an insert is provided inside the compartment penetration portion, and no member other than the sheet-like member and the tape-like member is provided alone. [5] A compartment penetration processing structure described in any one of [1] to [4] above, wherein the tape-shaped member is fixed to the insert by at least one of an adhesive layer or a fire-resistant material layer arranged on the inner side, and a string-shaped member or an adhesive tape wound from the outer side. [6] The compartment penetration structure according to any one of the above [1] to [5], wherein compartment penetration materials comprising the tape-shaped member and the sheet-shaped member are provided on both sides of the partition. [7] The compartment penetration structure according to any one of the above [1] to [6], wherein the sheet-like member is in contact with the insert and the partition. [8] The compartment penetration structure according to any one of the above [1] to [7], wherein the sheet-like member is disposed so as to cover the gap from the outside of the partition. [9] The compartment penetration structure according to any one of the above [1] to [6], wherein the sheet-like member is formed into a sleeve shape and inserted into the gap between the opening and the inserter.

[10] A compartment penetration treatment material used to make a compartment penetration part formed in a partition part of a building and into which a long penetrating body is inserted into a fireproof structure, a sheet-like member that closes at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; A tape-shaped member is wound around the insertion body one or more times, A compartment penetration treatment material, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material.

[11] A construction method for a compartment penetration processing structure in which a compartment penetration part formed in a partition part of a building and into which a long penetrating body is inserted has a fireproof structure, a step of placing a sheet-like member so as to close at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; and a step of winding a tape-shaped material around the insertion body at least once. A construction method for a compartment penetration treatment structure, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide a compartment penetration treatment structure, a construction method for a compartment penetration treatment structure, and a compartment penetration treatment material that reduce variation in fire resistance performance and allow easy confirmation that the compartment penetration treatment material is installed as specified. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a cross-sectional view showing a compartment penetration structure according to a first embodiment of the present invention. [Figure 2] 1 is a perspective view showing a state before a compartment penetration treatment material is installed in a compartment penetration treatment structure according to a first embodiment of the present invention. FIG. [Figure 3] 1 is a perspective view showing a compartment penetration processing structure according to a first embodiment of the present invention. [Figure 4] FIG. 4 is a cross-sectional view showing a compartment penetration structure according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a perspective view showing a state before a compartment penetration treatment material is installed in a compartment penetration treatment structure according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a perspective view showing a compartment penetration structure according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a perspective view showing a modified example of the sheet-like member in the second embodiment. [Figure 8] FIG. 10 is a cross-sectional view showing a modified example of the compartment penetration processing structure according to the second embodiment. [Figure 9] FIG. 10 is a cross-sectional view showing another modified example of the compartment penetration processing structure according to the second embodiment. [Figure 10]FIG. 10 is a cross-sectional view showing another modified example of the compartment penetration processing structure according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Hereinafter, the pipe shielding structure of the present invention will be described in more detail using embodiments. [First embodiment] Fig. 1 is a cross-sectional view showing a compartment penetration structure 10 according to a first embodiment of the present invention. The compartment penetration structure 10 is formed in a partition 11 of a building and is intended to provide a fireproof structure for a compartment penetration part 15 through which a long penetrating body 21 is inserted. The penetrating body 21 may be a cable, a pipe, or the like, but Fig. 1 shows an embodiment in which both a pipe 21A and a cable 21B are inserted.

[0012] The partition 11 is a member that separates compartments (a first compartment A and a second compartment B) on the wall surface of a building, and has a compartment penetration part 15 that penetrates from one outer surface 11A of the partition 11 to the other outer surface 11B. In this embodiment, the partition 11 is a hollow wall, and is composed of two wall materials (partition materials) 12A and 12B that are arranged with a gap (hollow part 13) between them. Therefore, the compartment penetration part 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 part 13 between them. The outer surface of one wall material 12A forms the outer surface 11A of the partition 11, and the outer surface of the other wall material 12B forms the outer surface 11B of the partition 11. The through holes 13A and 13B on the outer surfaces 11A and 11B respectively constitute openings 13C and 13D of the compartment through-hole 15 provided in the partition 11.

[0013] In this specification, the components that are applied to the compartment penetration section 15 to form the compartment penetration processing structure 10 (in this embodiment, the sheet-like member 18, the tape-like member 19, and the fixing members for fixing these, etc.) are sometimes collectively referred to as compartment penetration processing materials. In addition, the following describes the configuration of the compartment penetration processing structure on one opening 13C side of the partition section 13, but in this embodiment, the configuration of the compartment penetration processing structure on the other opening 13D side is similar, so the description thereof will be omitted.

[0014] The compartment penetration treatment structure 10 comprises a sheet-like member 18 and a tape-like member 19 as compartment penetration treatment materials, and either the tape-like member 19 or the sheet-like member 18 has a fire-resistant material as described below.

[0015] 2, the sheet-shaped member 18 has a hole 18A through which the inserting body 21 is inserted, and a slit 18B extending from the hole 18A to the outer edge of the sheet-shaped member 18. The slit 18B is formed by a cut. The sheet-shaped member 18 allows the inserting body 21 to be inserted into the hole 18A through the slit 18B. The sheet-like member 18 with the insert 21 inserted inside the hole 18A is placed on the outer surface 11A from the outside of the partition 11 so as to cover the gap 13E between the opening 13C and the insert 21, thereby closing the gap 13E with the sheet-like member 18. The sheet-like member 18 is placed so as to be in contact with both the outer surface 11A of the partition 11 and the outer periphery of the insert 21.

[0016] The sheet-like member 18 may be fixed to the outer surface 11A of the partition 11 by an adhesive layer or a fire-resistant material layer provided on the sheet-like member 18, or may be fixed to the outer surface 11A of the partition 11 by a fixing member such as a tacker or a screw that is separate from the sheet-like member 18. Of course, the sheet-like member 18 may be fixed to the partition 11 by a combination of two or more of these methods.

[0017] 1 and 3, the tape-shaped member 19 is disposed further outward than the sheet-shaped member 18 with respect to the partition section 11. The tape-shaped member 19 is wound around the outer periphery of the insert 21 one or more times. As a result, the tape-shaped member 19 is disposed so that its end surface 19A covers the space between the sheet-shaped member 18 and the insert 21. With the above configuration, a gap may be formed between the sheet-like member 18 and the insert 21, but such a gap is blocked by the tape-like member 19. Therefore, the entire gap 13E between the opening 13C of the compartment penetration part 15 and the insert 21 is blocked by the sheet-like member 18 and the tape-like member 19.

[0018] The sheet-shaped member 18 has at least one of a non-combustible material layer and a fire-resistant material layer. Similarly, the tape-shaped member 19 has at least one of a non-combustible material layer and a fire-resistant material layer. However, either the sheet-shaped member 18 or the tape-shaped member 19 has a fire-resistant material layer (fire-resistant material). This allows the compartment penetration structure 10 to ensure fire resistance. Furthermore, from the viewpoint of ensuring fire resistance, it is preferable that at least the sheet-shaped member 18 has a fire-resistant material layer, and more preferably, both the sheet-shaped member 18 and the tape-shaped member 19 have fire-resistant material layers.

[0019] The fire-resistant material layer used in the sheet-like member 18 or the tape-like member 19 is preferably a thermally expandable material that expands when heated. The thermally expandable material prevents the spread of fire by expanding in the event of a fire. The thermally expandable material is preferably formed from a thermally expandable resin composition, as described below. The fire-resistant material layer may also have adhesive properties. The thickness of the fire-resistant material layer is not particularly limited, but is, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm. When the fire-resistant material layer has a thickness equal to or less than these upper limits, flexibility is imparted to the sheet-shaped member 18 and the tape-shaped member 19. Therefore, for example, even if the tape-shaped member 19 has a fire-resistant material layer, it can be wound around the outer periphery of the insert 21 while being in close contact with the insert 21. Furthermore, when the thickness is equal to or greater than the lower limit, fire resistance is more easily ensured.

[0020] The sheet-like member 18 may be composed of a single layer of fire-resistant material, a single layer of non-combustible material, or both a layer of fire-resistant material and a layer of non-combustible material. Furthermore, the sheet-like member 18 may have layers other than the layer of fire-resistant material and the layer of non-combustible material, such as a substrate layer and an adhesive layer. Similarly, the tape-shaped member 19 may consist of a single layer of fire-resistant material, a single layer of non-combustible material, or both a layer of fire-resistant material and a layer of non-combustible material. Furthermore, the tape-shaped member 19 may have layers other than the layer of fire-resistant material and the layer of non-combustible material, such as a substrate layer and an adhesive layer.

[0021] The sheet-shaped member 18 may have, for example, an adhesive fire-resistant material layer or an adhesive layer. Similarly, the tape-shaped member 19 may have an adhesive fire-resistant material layer or an adhesive layer. The adhesive fire-resistant material layer and the adhesive layer may form the outermost surface of the sheet-shaped member 18 or the tape-shaped member 19. With the above-described configuration, the sheet-like member 18 or the tape-like member 19 can be fixed to the partition section 11 or the insert 21 without using a fixing member separate from the sheet-like member 18 or the tape-like member 19. Furthermore, by imparting adhesiveness to the fire-resistant material layer itself, it is not necessary to provide an adhesive layer, which further simplifies the configuration of the sheet-like member 18 or the tape-like member 19. When the sheet-like member 18 and the tape-like member 19 are provided with an adhesive fire-resistant material layer or an adhesive layer on their outermost surfaces, a release sheet may be attached to the outermost surface. The release sheet may be peeled off from the outermost surface when used.

[0022] The non-combustible material layer used in the sheet-like member 18 or the tape-like member 19 is made of a non-combustible material. Non-combustible materials are those defined in the Building Standards Act and the Building Standards Act Enforcement Order. Specific examples of the non-combustible material layer include metal foils such as aluminum foil and copper foil, glass cloth, and composites of metal foil and glass cloth such as aluminum glass cloth. Of these, aluminum glass cloth is preferred from the viewpoint of fire resistance. The thickness of the non-combustible material layer is not particularly limited, but is, for example, 0.01 to 1 mm, preferably 0.05 to 0.5 mm. When the non-combustible material layer has a thickness equal to or less than these upper limits, flexibility is imparted to the sheet-shaped member 18 and the tape-shaped member 19. Therefore, even if the tape-shaped member 19 has a non-combustible material layer, it can be wound around the outer periphery of the insert 21 while being in close contact with the insert 21. Furthermore, when the thickness is equal to or greater than the lower limit, fire resistance is more easily ensured.

[0023] Examples of the substrate constituting the substrate layer include paper, cloth, resin film, etc. The thickness of the substrate is, for example, 0.01 to 1 mm, and preferably 0.05 to 0.5 mm. The pressure-sensitive adhesive layer is preferably formed from a pressure-sensitive adhesive, and examples of the pressure-sensitive adhesive that can be used include acrylic pressure-sensitive adhesives, urethane pressure-sensitive adhesives, rubber pressure-sensitive adhesives, and silicone resin pressure-sensitive adhesives. The pressure-sensitive adhesive layer may be non-flammable, semi-non-flammable, or flame-retardant, and a flame retardant may be blended into the pressure-sensitive adhesive used. The thickness of the pressure-sensitive adhesive layer is, for example, 5 to 400 μm, and preferably 10 to 150 μm.

[0024] The thickness of the sheet-like member 18 is not particularly limited, but is, for example, 0.1 to 10 mm, and preferably 0.5 to 5 mm. The thickness of the tape-like member 19 is not particularly limited, but is, for example, 0.1 to 10 mm, and preferably 0.5 to 5 mm.

[0025] When the sheet-like member 18 and the tape-like member 19 have a multi-layer structure, they may have a two-layer structure, or a three-layer or more layer structure. Examples of two-layer structures include a non-combustible material layer / fire-resistant material layer, a non-combustible material layer / adhesive layer, a fire-resistant material layer / adhesive layer, a substrate / fire-resistant material layer, and a substrate / non-combustible material layer. Furthermore, examples of three-layer structures that have an adhesive layer include non-combustible material layer / fire-resistant material layer / adhesive layer, substrate / fire-resistant material layer / adhesive layer, substrate / non-combustible material layer / adhesive layer, etc. Other examples of three-layer structures that do not have an adhesive layer include non-combustible material layer / substrate / fire-resistant material layer, substrate / non-combustible material layer / fire-resistant material layer, and substrate / fire-resistant material layer / non-combustible material layer. Examples of structures with four or more layers include a three-layer structure in which an additional adhesive layer is provided as the outermost layer of the three-layer structure not provided with an adhesive layer. Typical examples include adhesive layer / non-combustible material layer / substrate / fire-resistant material layer, non-combustible material layer / substrate / fire-resistant material layer / adhesive layer, substrate / non-combustible material layer ... and substrate / fire-resistant material layer / non-combustible material layer / adhesive layer. Furthermore, in the above multilayer structures, adjacent non-combustible material layers and fire-resistant material layers, non-combustible material layers and substrates, and fire-resistant material layers and substrates may be bonded together with known adhesives, and therefore, in each of the above laminated structures, an adhesive layer may be provided between each of the above layers. In the multilayer structure, the sheet-like member 18 and the tape-like member 19 may have the same layer configuration throughout, or may have partially different structures. For example, a pressure-sensitive adhesive layer may be provided on part of the sheet-like member 18 and the tape-like member 19, so that part of the sheet-like member 18 and the tape-like member 19 has a single-layer structure and part of the sheet-like member 18 has a multilayer structure.

[0026] The tape-shaped member 19 wound around the outer periphery of the inserter 21 may be in close contact with the inserter 21, and therefore may be deformed appropriately to fit the shape of the inserter 21. The tape-shaped member 19 is fixed to the outer periphery of the inserter 21. The tape-shaped member 19 may be fixed to the outer periphery of the inserter 21 by an adhesive layer or a fire-resistant material layer disposed on the inner periphery of the tape-shaped member 19. The tape-shaped member 19 may be fixed to the inserter 21 by a fixing member provided separately from the tape-shaped member 19. Examples of such fixing members include a string-shaped member wound around the outer periphery of the tape-shaped member 19 or an adhesive tape. The tape-shaped member 19 may also be fixed to the inserter 21 by a combination of two or more of these.

[0027] The string-like member may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, a resin-coated wire such as Nejirikko (registered trademark) in which a metal wire is coated with resin, or a wire and fiber entangled member such as a mould. When a wire member is used, the tape-like member 19 can be fixed to the insertion body 21 simply by twisting or twisting it. The adhesive tape may have a substrate and an adhesive layer provided on one side of the substrate. The substrate may be made of paper, a resin film, cloth, or any of the above-mentioned non-flammable materials. The adhesive layer may be made of, for example, an acrylic adhesive, a urethane adhesive, a rubber adhesive, or a silicone resin adhesive. The adhesive may contain a known flame retardant.

[0028] (Thermal Expandable Resin Composition) The thermally expandable resin composition used in the fire-resistant material such as the fire-resistant material layer will be described in more detail below. The thermally expandable resin composition contains a resin component and a thermally expandable material. When the thermally expandable member is formed from the thermally expandable resin composition containing the resin component, the sheet-shaped member or tape-shaped member can be easily curved or deformed. Examples of thermally expandable materials include foaming agents that expand upon heating, thermally expandable layered inorganic materials such as vermiculite and thermally expandable graphite, with thermally expandable graphite being preferred. The use of thermally expandable graphite allows for appropriate expansion by the heat of a fire, and the mechanical strength of the expansion residue after expansion is excellent, making it easier to improve fire resistance. The thermally expandable material referred to here does not substantially expand upon molding, etc., as described below, and the thermally expandable resin composition maintains its thermal expandability in the fire-resistant material.

[0029] The expansion start temperature of the thermally expandable material is not particularly limited, but is preferably 150 to 350°C, more preferably 170 to 300°C, and even more preferably 180 to 280°C. By setting the temperature at or below these lower limits, the thermally expandable material is prevented from accidentally expanding due to heating other than that caused by a fire. Furthermore, by setting the temperature at or below the upper limits, the thermally expandable material is more likely to expand reliably due to heating caused by a fire. The expansion starting temperature of a thermally expandable material can be measured by heating a predetermined amount (e.g., 100 mg) of the material at a constant heating rate (e.g., 10°C / min) and measuring the temperature at which the normal force rises. Any measuring device can be used as long as it is capable of controlling the measurement temperature and measuring the normal stress, and a rheometer, for example, can be used. The expansion ratio of the thermally expandable member is preferably 3 times or more, and more preferably 10 times or more. The upper limit of the expansion ratio is not particularly limited, but is, for example, 50 times. The expansion ratio can be calculated by feeding the thermally expandable member into an electric furnace, heating it at 600°C for 30 minutes, measuring the thickness of a test piece, and then calculating the ratio by dividing the thickness of the test piece after heating by the thickness of the test piece before heating.

[0030] The thermally expandable resin composition in which the thermally expandable material is thermally expandable graphite will be described in detail below. 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), polypropylene (PP), polyolefins such as ethylene vinyl acetate (EVA), polyesters such as ethylene-propylene-diene copolymer (EPDM), chloroprene (CR), polyethylene terephthalate, and polybutylene terephthalate, polycarbonate, polystyrene (PS), polyphenylene sulfide, acrylonitrile-butadiene-styrene copolymer (ABS), acrylonitrile-styrene-acrylonitrile copolymer (ASA), and acrylonitrile / ethylene-propylene-diene / styrene copolymer (AES). Examples of the curable resin include epoxy resin, phenol resin, melamine resin, urea resin, unsaturated polyester resin, alkyd resin, polyurethane, and thermosetting polyimide.

[0031] 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 fluororubber. Other examples include 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.

[0032] Furthermore, the thermally expandable resin composition is more likely to have adhesiveness when an elastomer is used as a resin component. To facilitate the development of adhesiveness, the elastomer preferably contains a liquid elastomer. The liquid elastomer is an elastomer that is liquid at room temperature and normal pressure.

[0033] The thermally expandable resin composition may contain a plasticizer. A plasticizer is preferably used when the resin component is a thermoplastic resin such as polyvinyl chloride resin. Specific examples of the plasticizer include phthalate ester plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), and diisodecyl phthalate (DIDP); adipic acid esters such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), and dibutyl adipate (DBA), and 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 (TO™) and triisononyl trimellitate (TINT™); phosphate ester plasticizers such as trimethyl phosphate (TMP) and triethyl phosphate (TEP); and process oils such as mineral oil. One or more 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, for example, in the range of 0.3 parts by mass or more and 150 parts by mass or less, and preferably in the range of 10 parts by mass or more and 100 parts by mass or less, per 100 parts by mass of the resin component. When the amount of the plasticizer is equal to or greater than these lower limits, good moldability is likely to be achieved, and when the amount is equal to or less than the upper limits, an appropriate strength is imparted to the molded article.

[0034] 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 the content at or above these lower limits, the moldability of the thermally expandable member can be improved. In addition, flexibility is ensured, making it easier to deform into a sleeve shape. In addition, by setting the content at or below the upper limits, it becomes possible to blend sufficient amounts of components such as thermally expandable graphite and inorganic filler. The total content of the resin component and the plasticizer means the total content of both the resin component and the plasticizer when both are contained, and means the content of the resin component alone when no plasticizer is contained.

[0035] Thermally expandable graphite is a conventionally known substance, and is produced by treating powder of natural flake graphite, pyrolytic graphite, kish graphite, or the like with an inorganic acid such as concentrated sulfuric acid, nitric acid, or selenic acid, and a strong oxidizing agent such as concentrated nitric acid, perchloric acid, perchlorates, permanganates, dichromates, or hydrogen peroxide to produce a graphite intercalation compound. The produced thermally expandable graphite is a crystalline compound that maintains the layered structure of carbon. The thermally expandable graphite used in the present invention may be thermally expandable graphite obtained by acid treatment and neutralizing it with ammonia, aliphatic lower amines, alkali metal compounds, alkaline earth metal compounds, or the like. Examples of the aliphatic lower amine include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, and butylamine. Examples of the alkali metal compounds and alkaline earth metal compounds include hydroxides, oxides, carbonates, sulfates, and organic acid salts of potassium, sodium, calcium, barium, magnesium, and the like.

[0036] The particle size of the thermally expandable graphite is not particularly limited, but is preferably in the range of 20 to 200 mesh. If the particle size is equal to or greater than the lower limit, the degree of expansion of the graphite tends to increase, resulting in good expandability. On the other hand, if the particle size is equal to or less than the upper limit, good dispersibility when kneaded with a resin is achieved, improving moldability.

[0037] The content of 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, relative to 100 parts by mass of the resin component. When the content of thermally expandable graphite is 3 parts by mass or more, thermal expandability is improved. When the content is 300 parts by mass or less, moldability is improved, and the surface properties, mechanical properties, flexibility, etc. of the sealing member are also improved. From these viewpoints, the content of 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.

[0038] The thermally expandable resin composition may further contain an inorganic filler. There are no particular limitations on the inorganic filler, as long as it is an inorganic filler that is generally used in thermally expandable resin compositions. Specific examples include 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, dawnnite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate, talc, clay, mycelium, montmorillonite, bentonite, activated clay, seviolite, 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 zirconium titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fiber, zinc borate, various magnetic powders, slag fiber, fly ash, and dewatered sludge. The inorganic filler may be used alone or in combination of two or more. When an inorganic filler is contained, 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, and more preferably in the range of 10 parts by mass or more and 150 parts by mass or less, per 100 parts by mass of the resin component.

[0039] The thermally expandable resin composition may contain a known tackifier, which makes it easier to impart tackiness to the thermally expandable member. Furthermore, the thermally expandable resin composition used in the present invention may contain additives commonly used in thermally expandable resin compositions, such as heat stabilizers, lubricants, processing aids, antioxidants, antistatic agents, pigments, crosslinking agents, crosslinking accelerators, etc., as needed, within the range that does not impair the physical properties of the composition. Among these, it is preferable to use processing aids.

[0040] The thermally expandable member can be manufactured, for example, as follows: First, predetermined amounts of resin components, a thermally expandable material, and other additives, if necessary, are mixed in a mixer such as a kneading roll to obtain a thermally expandable resin composition. The thermally expandable resin composition may be diluted by adding a solvent as appropriate. The thermally expandable resin composition, diluted as necessary, is applied to a support such as a substrate, a non-combustible material, or a release sheet, and then dried, cured, or the like as appropriate to form a fire-resistant material layer (thermally expandable member) on one side of the support. Alternatively, the fire-resistant material layer may be formed on one side of the support by a known method such as extrusion molding. The fire-resistant material layer formed on the release sheet may be peeled from the release sheet to form a sheet-like member or tape-like member consisting of a single fire-resistant material layer. Alternatively, a sheet-like member or tape-like member having a multilayer structure may be obtained by laminating the fire-resistant material layer on another layer after peeling it from the release sheet. Alternatively, the fire-resistant material layer may be laminated on another layer while still laminated on the release sheet or another support.

[0041] According to the configuration of the present embodiment, the gap 13E inside the opening 13C of the compartment penetration 15 is filled with the sheet-like member 18 and the tape-like member 19, and at least one of them contains a fire-resistant material. Therefore, the compartment penetration treatment structure 10 can be provided with appropriate fire resistance. As explained above, the compartment penetration structure 10 can be constructed by placing the sheet-like member 18 so as to close the gap 13E between the opening 13C of the compartment penetration part 15 and the insert 21, and then wrapping the tape-like member 19 around the insert 21 one or more times. Therefore, construction is easy. Furthermore, in this embodiment, the fireproof structure is formed using the sheet-like member 18 and the tape-like member 19 without placing filler materials such as fire-resistant putty or rock wool inside the compartment penetration portion 15, so there is no variation among workers.

[0042] Furthermore, in this embodiment, both the sheet-like member 18 and the tape-like member 19 are exposed and visible from the outside. If a fixing member is provided to fix the sheet-like member 18 or the tape-like member 19, the fixing member should also be positioned in a position that is visible from the outside. No other members than the insert 21 are provided inside the compartment penetration portion 15, and each member that makes up the compartment penetration treatment material is visible from the outside. Therefore, the compartment penetration treatment material can be easily inspected visually or by photographing to ensure that it has been installed as specified. Furthermore, it is less likely that installation will be forgotten.

[0043] [Second embodiment] Next, a second embodiment of this invention will be described in detail. The second embodiment differs from the first embodiment in the configuration of the sheet-like member and the tape-like member. The differences between the second embodiment and the first embodiment will be described below. Furthermore, parts for which description is omitted are the same as those in the first embodiment. Furthermore, in the following description, parts having the same configuration as those in the first embodiment will be given the same reference numerals.

[0044] 4 to 6, the compartment penetration treatment structure 30 according to this embodiment includes, as compartment penetration treatment materials, a sheet-like member 38 and a tape-like member 39. The structural details of the sheet-like member 38 and the tape-like member 39 themselves are the same as those of the first embodiment, and at least one of the sheet-like member 38 and the tape-like member 39 has a fire-resistant material.

[0045] The sheet-like member 38 is formed into a sleeve shape at the construction site and inserted into the gap 13E between the opening 13C and the inserter 21. As a result, the sheet-like member 38 partially blocks the gap 13E. Here, the sheet-like member 38 is inserted into the compartment through-hole 15. More specifically, as shown in Fig. 4, one end 38A of the sheet-like member 38 is disposed inside the through-hole 13A. However, the sheet-like member 38 may be inserted further to the back, with one end 38A disposed inside the hollow portion 13. On the other hand, the other end 38B of the sheet-like member 38 is disposed outside the partition portion 11. That is, the end 38B is disposed so as to protrude outward beyond the opening 13C.

[0046] The sleeve-shaped sheet member 38 may be fixed to the inner surface of the through hole 13A by a fire-resistant material layer or an adhesive layer arranged on the outer peripheral surface of the sheet member 38. However, the sheet member 38 does not have to be fixed to the partition portion 11 by a fire-resistant material layer or an adhesive layer, and may be fixed to the partition portion 11 by a fixing member that is separate from the sheet member 18, such as a stapler or a screw. Of course, the sheet member 38 may be fixed to the partition portion 11 by a combination of two or more of these methods.

[0047] 4 and 6, one end 39A of the tape-shaped member 39 is wrapped around the outer periphery of the inserter 21 one or more times, but in this embodiment, as shown in Figures 4 and 6, one end 39A of the tape-shaped member 39 is wrapped around the outside of the other end 38B of the sleeve-shaped sheet-shaped member 38, and the other end 39B of the tape-shaped member 39 is wrapped around the outside of the inserter 21. With this configuration, in this embodiment, the gap between the sheet-shaped member 38 and the inserter 21 is filled with the tape-shaped member 39, and the entire gap 13E is filled with the sheet-shaped member 38 and the tape-shaped member 39.

[0048] The tape-shaped member 39 may be wound around the outer periphery of the other end 38B of the sheet-shaped member 38 so that a portion of the sheet-shaped member 38 protruding from the opening 13C is exposed. In other words, the tape-shaped member 39 is not wound around the portion of the sheet-shaped member 38 protruding from the opening 13C. Furthermore, the tape-shaped member 39 has an outer diameter smaller at the end 39B side wound around the outer periphery of the insert 21 than at the end 39A side wound around the outer periphery of the sheet-shaped member 38. Therefore, it is preferable to increase the overlapping portion of the tape-shaped members 39 on the end 39B side compared to the end 39A side, or to deform the end 39B side more.

[0049] 4 and 6, both ends 39A, 39B of the tape-shaped member 39 may be fixed to the outer circumferential surfaces of the sheet-shaped member 38 and the insert 21 by string-shaped members 37A, 37B. However, both ends 39A, 38B of the tape-shaped member 39 may be fixed by members other than string-shaped members, and may be fixed to the outer circumferential surfaces of the sheet-shaped member 38 and the insert 21 by a fire-resistant material layer or an adhesive layer arranged on the inner circumferential side of the tape-shaped member 39, or an adhesive tape that is a separate member from the tape-shaped member 39. Of course, two or more of these may be combined.

[0050] As described above, in this embodiment as well, the gap 13E inside the opening 13C of the compartment penetration 15 is filled with the sheet-like member 38 and the tape-like member 39, and at least one of these has a fire-resistant material layer. Therefore, appropriate fire resistance can be imparted to the compartment penetration treatment structure 30. Furthermore, if the sheet-like member 38 has a fire-resistant material layer, a fire-resistant material will be disposed inside the compartment penetration 15, further improving the fire resistance. Furthermore, the compartment penetration portion treatment structure 30 of this embodiment can be constructed by inserting a sleeve-shaped sheet-like member 38 between the opening 13C of the compartment penetration portion 15 and the insert 21, closing a part of the gap 13E with the sheet-like member 38, and then wrapping the tape-like member 39 around the outer periphery of the sheet-like member 38 and the insert 21. Therefore, construction is easy. Furthermore, in this embodiment, the fireproof structure is formed using the sheet-like member 38 and the tape-like member 39 without placing filler materials such as fire-resistant putty or rock wool inside the compartment penetration portion 15, so there is no variation among workers.

[0051] Furthermore, in this embodiment, both the sheet-like member 38 and the tape-like member 39 are exposed and visible from the outside. Also, a fixing member for fixing the sheet-like member 38 may be disposed inside the compartment penetration part 15, but it is merely a member for fixing the sheet-like member 38 and is not installed independently inside the compartment penetration part 15. In other words, the fixing member can be said to be a member that is fixed to the sheet-like member 38 and is integrated with it. Therefore, in this embodiment, apart from the insert 21, no other components are provided inside the compartment penetration part 15 other than the sheet-like member 38 and the tape-like member 39, which are components visible from the outside, and it is possible to check from the outside whether the compartment penetration treatment material in this embodiment has been installed. Therefore, it is possible to easily check by visual inspection or photography that the compartment penetration treatment material has been installed as specified, and it is less likely that installation will be forgotten.

[0052] [Other variations] The present invention is not limited to the configurations of the first and second embodiments described above, and any improvements and modifications may be made without departing from the technical spirit of the present invention. For example, in the second embodiment, the sheet-like member 38 is rolled into a sleeve shape at the construction site. However, the sheet-like member 48 may be pre-formed into a sleeve shape as shown in FIG. 7. However, the sleeve-shaped sheet member 48 has a slit 48F extending along its axial direction. The slit 48F may be provided from one end 48A to the other end 48B of the sheet-like member. The sheet-like member 48 having this structure is preferably made of a fire-resistant material (fire-resistant material layer). When the sheet-like member 48 is made of a fire-resistant material and is further formed from the above-mentioned thermally expandable resin composition, good moldability is achieved. However, as described in the first and second embodiments, the sheet-like member 48 may have an adhesive layer or the like laminated on the fire-resistant material layer as appropriate, or may contain a non-combustible material layer, a base material, or the like as appropriate.

[0053] In this modification, the sheet-like member 48 can have the inserting body 21 inserted therein through the slit 48F. The sleeve-like sheet-like member 48 is inserted into the partition portion 11 through the opening 13C, and is thereby placed inside the compartment penetrating portion 13, as in the second embodiment (see FIGS. 4 to 6). On the other hand, as described in the second embodiment (see Figures 4 to 6), one end 39A of the tape-shaped member 39 is wound around the outside of the other end 48B of the sleeve-shaped sheet-shaped member 48, and the other end 39B of the tape-shaped member 39 is wound around the outside of the insert 21. As a result, in this modification as well, the entire gap 13E is filled with the sheet-shaped member 48 and the tape-shaped member 39.

[0054] Furthermore, the compartment penetration structure may further be provided with a cover material as a compartment penetration processing material. FIG. 8 shows a modified example of the second embodiment in which a cover material is provided. As shown in FIG. 8, the cover material 50 may be arranged, for example, to cover the connection portion between the outer surface 11A of the partition portion 11 and the sheet-like member 38. The cover material 50 makes the connection portion invisible, improving the appearance of the compartment penetration structure. The cover material 50 may be formed from a known resin material or metal. The cover material 50 has, for example, an annular shape, but is not limited to this configuration. Furthermore, the cover material 50 covers a portion of the sheet-like member 38, but the sheet-like member 38 remains partially exposed. Therefore, in this modified example, as in the second embodiment, the sheet-like member and tape-like member that make up the compartment penetration treatment material are visible from the outside. Therefore, it is easy to visually check that the compartment penetration treatment material has been installed as specified.

[0055] In each of the above embodiments, the compartment penetration treatment material may have a member connected to at least one of the sheet-like member and the tape-like member and placed inside the compartment penetration part 15. Examples of such members include fire-resistant materials and accessories. A specific example is shown in Fig. 9 as a modified example of the second embodiment. As the fire-resistant material, for example, a block-shaped fire-resistant material 51 as shown in Fig. 9 is used, and the block-shaped fire-resistant material 51 may be connected to the sheet-shaped member 38. The manner of connection is not particularly limited, and for example, the fire-resistant material 51 may be laminated on one side of the sheet-shaped member 38, or may be connected to an end face of the sheet-shaped member 38. As described above, the fire-resistant material 51 is preferably made of a thermally expandable material that expands when heated, and in particular, it is preferably made of a thermally expandable resin composition.

[0056] This modified example allows a relatively large amount of fire-resistant material to be placed inside the compartment penetration portion 15, further improving fire prevention performance. On the other hand, the fire-resistant material is placed as an integrated part with a sheet-like member, tape member (a sheet-like member in this modified example) or the like that is visible from the outside. Therefore, in this modified example, as in the second embodiment, no member other than the sheet-like member or the tape-like member is installed independently inside the compartment penetration portion 15. Therefore, the compartment penetration treatment material can be easily inspected visually or by photographing to ensure that it has been installed as specified, and it is less likely that installation will be forgotten. It should be noted that the term "integrated object" as used herein refers to an object that is fixed to a sheet-like or tape-like member, which is a member that can be seen from the outside, and that will not fall off the sheet-like or tape-like member due to its own weight, for example.

[0057] The above-mentioned accessories also include a locking portion, which is a member that is locked to the partition portion 11, and by locking the locking portion to the partition portion, the sheet-like material or tape-like material can be installed more stably. Furthermore, just like the above-mentioned fire-resistant material, the accessories only need to be arranged as one unit with the sheet-like or tape-like member, which is a member that can be seen from the outside, so that apart from the insert, no other member other than the sheet-like or tape-like member is provided independently inside the compartment penetration part 15. Therefore, it is easy to check by visual inspection or photography that the compartment penetration treatment material has been installed as specified, and it is less likely that installation will be forgotten. Furthermore, the accessories may be functional components having functions such as sound insulation, deodorization, and vibration damping. Specifically, they may be sound insulation materials such as foams and rubber materials, deodorizers and deodorizers themselves, or resin materials or rubber materials containing deodorizers and deodorizers. They may also be rubber materials that function as vibration damping materials.

[0058] Furthermore, in the above description, the partition 11 is a hollow wall having a hollow portion 13 therein, but it is not limited to a hollow wall and may be a wall without a hollow, for example, made of a single wall material. Furthermore, the partition 11 is not limited to a wall of a building and may be a ceiling or floor of a building. Even if the partition is a ceiling or floor, it may have a structure with a hollow portion between two partition materials, or a structure without a hollow portion, for example, made of a single partition material.

[0059] Furthermore, in each of the above embodiments, it has been explained on the assumption that compartment penetration treatment materials of the same structure are provided in both openings 13C, 13D of partition 11 (i.e., on both sides of partition 11), but compartment penetration treatment structures of different structures may be provided in each opening 13C, 13D. For example, one opening 13C may be provided with a compartment penetration treatment structure according to the first embodiment, and the other opening 13D may be provided with a compartment penetration treatment structure according to the second embodiment. Furthermore, the compartment penetration treatment material in opening 13D may be omitted.

[0060] Furthermore, in the compartment penetration structure according to the second embodiment, the sheet-like members 38, 38 provided in the openings 13C, 13D are provided as separate members, but they may also be provided as an integrated member. That is, as shown in Fig. 10, one sleeve-shaped sheet-like member 58 may be provided spanning from one opening 13C to the other opening 13D. [Explanation of symbols]

[0061] 10, 30 compartment penetration processing structure 11 Partition 13 Hollow part 13C,13D opening 13E Gap 15 Compartment penetration 18, 38, 48, 58 Sheet-shaped members 18B, 48F slit 19, 39 Tape-shaped members 21 Penetrator 37A, 37B String-like member

Claims

1. A compartment penetration processing structure that is formed in a partition of a building and has a compartment penetration part into which a long penetrating body is inserted as a fireproof structure, a sheet-like member that closes at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; A tape-shaped member is wound around the insertion body one or more times, A compartment penetration treatment structure, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material.

2. The compartment penetration structure according to claim 1 , wherein the sheet-like member and the tape-like member are visible from the outside.

3. A compartment penetration processing structure as described in claim 1 or 2, wherein at least one of a fire-resistant material and an accessory connected to at least one of the tape-shaped member and the sheet-shaped member is arranged inside the compartment penetration portion.

4. A compartment penetration processing structure described in any one of claims 1 to 3, wherein nothing other than the insert is provided inside the compartment penetration portion, and no member other than the sheet-like member and the tape-like member is provided alone.

5. The compartment penetration processing structure according to any one of claims 1 to 4, wherein the tape-shaped member is fixed to the insert by at least one of an adhesive layer or a fire-resistant material layer arranged on the inner periphery and a string-shaped member or an adhesive tape wound from the outer periphery.

6. The compartment penetration treatment structure according to any one of claims 1 to 5, wherein compartment penetration treatment materials comprising the tape-shaped member and the sheet-shaped member are provided on both sides of the partition.

7. The compartment penetration structure according to any one of claims 1 to 6, wherein the sheet-like member is in contact with the insert and the partition.

8. The compartment penetration structure according to any one of claims 1 to 7, wherein the sheet-like member is arranged so as to cover the gap from the outside of the partition.

9. 7. The compartment penetration structure according to claim 1, wherein the sheet-like member is formed into a sleeve shape and inserted into the gap between the opening and the insert.

10. A compartment penetration treatment material used to make a compartment penetration part formed in a partition part of a building and into which a long penetrating body is inserted into a fireproof structure, a sheet-like member that closes at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; A tape-shaped member is wound around the insertion body one or more times, A compartment penetration treatment material, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material.

11. A construction method for a compartment penetration processing structure in which a compartment penetration part formed in a partition part of a building and into which a long penetrating body is inserted has a fireproof structure, a step of placing a sheet-like member so as to close at least a part of a gap between the opening of the compartment penetration portion provided in the partition portion and the insertion body; and a step of winding a tape-shaped material around the insertion body at least once. A construction method for a compartment penetration treatment structure, wherein at least one of the sheet-like member and the tape-like member has a fire-resistant material.

Images