Section penetration processing structure and section penetration processing material

Abstract

To provide a section penetration processing structure and a section penetration processing material capable of reducing variation of a fire resistance performance and improving the fire resistance performance.SOLUTION: A section penetration processing structure 10 has a section penetration part 15 as a fire resistant structure. The section penetration part 15 is formed in a partition part 11 of an architectural structure, and a long insertion body 21 is inserted to the inside of the section penetration part 15. The section penetration processing structure 10 includes: a sheet-like member 3 having a cutout 31 that is formed by cutting and arranged along the insertion body 21, and blocking at least a part of a gap between an opening 13C of the section penetration part 15 provided in the partition part 11 and the insertion body 21; and a fire resistant filler 4 that is arranged so as to contact the cutout 31 and blocks at least a part of a gap between the sheet-like member 3 and the insertion body 21.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a compartment penetration treatment structure and a compartment penetration treatment material formed in a partition of a building or the like. [Background technology]

[0002] In buildings such as apartment complexes, 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 constructed with fire prevention measures (fire-resistant 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] One known method for making compartment penetrations fireproof is to fill the gap between the long insert and the through hole with an unshaped filler such as fireproof putty. When an unshaped filler is used, a tubular member made of fireproof material may also be placed between the inside of the through hole in each wall and 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 filler is used for fireproofing of compartment penetrations, there is variation among workers, and sufficient fire resistance may not be achieved. Also, when installing fireproofing 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 fireproofing materials have been installed according to regulations, it is necessary to destroy the compartment penetration structure and check the internal structure.

[0006] Additionally, to reduce variations among workers, there are kits that integrate predetermined quantities and sizes of components, but these tend to have a large number of components, which can easily lead to components being lost or forgotten to be installed, and there is also the problem of a lot of waste being generated because each kit is packaged separately.

[0007] Furthermore, in compartment penetration structures in which long inserts such as cables and piping are inserted, if the insert is moved after the compartment penetration structure is applied, the fire-resistant material installed inside may be displaced from its original position. External forces such as earthquakes may also cause the fire-resistant material to be displaced from its original position. Furthermore, if the fire-resistant material expands unevenly rather than uniformly, it may be displaced from its original position or fall off. Displacement of the fire-resistant material from its original position makes it difficult to achieve the fire-resistant performance desired for the compartment penetration fire-resistant structure.

[0008] Therefore, an object of the present invention is to provide a compartment penetration treatment structure and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Means for solving the problem]

[0009] 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 that is formed in a partition of a building and has a compartment penetration portion through which a long insert is inserted, and has a fire-resistant structure, the compartment penetration processing structure comprising: a sheet-like member having a cut piece, the cut piece being arranged along the insert, and sealing at least a part of the gap between the opening of the compartment penetration portion provided in the partition and the insert; and a fire-resistant filler material that is arranged in contact with the cut piece and sealing at least a part of the gap between the sheet-like member and the insert. [2] The compartment penetration structure described in [1], wherein the sheet-like member has at least one layer selected from the group consisting of a substrate, an adhesive layer, a cushion layer, and a fire-resistant material layer. [3] The compartment penetration structure described in [1] or [2], wherein the sheet-like member has the substrate and the fire-resistant material layer. [4] A compartment penetration structure described in [2] or [3], in which the adhesive layer or the adhesive fire-resistant material layer is arranged so as to be in contact with the partition portion. [5] A compartment penetration processing structure as described in claim 1, wherein the cushion layer is arranged so as to contact the partition portion. [6] The compartment penetration structure according to any one of [2] to [5], wherein nothing is provided inside the compartment penetration part other than the insert. [7] The compartment penetration structure according to any one of [1] to [6], wherein the piece is disposed inside the compartment penetration part in addition to the insert. [8] The compartment penetration structure according to any one of [1] to [7], wherein the piece functions as a support for the refractory filler. [9] The compartment penetration structure according to any one of [1] to [8], wherein the sheet-like member and the fireproof filler are provided on both sides of the partition.

[10] A compartment penetration processing structure described in any one of [1] to [9], wherein the piece is not in contact with the insert but is arranged so as to be in contact with the fire-resistant filler material which is arranged in contact with the insert.

[11] The compartment penetration structure according to any one of [1] to

[10] , further comprising a cover member that closes at least a part of the gap between the sheet-like member and the insert.

[12] A compartment penetration processing structure as described in

[11] , in which at least one of the sheet-like member and the cover member is fixed to the insert and the partition portion by at least one of an adhesive layer or a fire-resistant material layer having adhesiveness, a string-like member or adhesive tape wound from the outer periphery, a fixing member installed from the outside, and a fixing piece formed by a notch in the cover member.

[13] A compartment penetration processing structure described in

[11] or

[12] , wherein the sheet-like member is covered with the cover member, and at least one of the end face and the surface of the sheet-like member is visible from the outside.

[14] The compartment penetration structure according to any one of

[11] to

[13] , wherein there is a gap between the sheet-like member and the cover member.

[15] A compartment penetration treatment material that is formed in a partition of a building and that makes a compartment penetration portion into which a long insert is inserted a fire-resistant structure, comprising: a sheet-like member having a cut piece, the cut piece being arranged along the insert and sealing at least a part of the gap between the opening of the compartment penetration portion provided in the partition and the insert; and a fire-resistant filler material that is arranged in contact with the cut piece and sealing at least a part of the gap between the sheet-like member and the insert. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a compartment penetration treatment structure and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Brief explanation of the drawings]

[0011] [Figure 1] 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 2] 1 is a cross-sectional view showing a compartment penetration structure according to a first embodiment of the present invention. [Figure 3] FIG. 1 is a cross-sectional view showing a compartment penetration processing structure according to a first modified example of the first embodiment of the present invention. [Figure 4]FIG. 10 is a cross-sectional view showing a compartment penetration structure according to a second modified example of the first 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 cross-sectional view (part 1) showing a compartment penetration structure according to a second embodiment of the present invention. [Figure 7] FIG. 10 is a cross-sectional view (part 2) showing a compartment penetration structure according to a second embodiment of the present invention. [Figure 8] FIG. 10 is a perspective view showing another form of a cover member in a compartment penetration processing structure according to a modified example of the second embodiment of the present invention. [Figure 9] FIG. 10 is a cross-sectional view showing a compartment penetration processing structure according to another embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described in more detail below using embodiments.

[0013] [First embodiment] The compartment penetration structure according to the first embodiment of the present invention is a compartment penetration structure, as shown in FIG. 1, which is formed in a partition 11 of a building and has a compartment penetration portion 15, through which a long penetrating body 21 is inserted, having a fire-resistant structure.

[0014] The partition 11 in the compartment penetration structure of the present invention is a component that separates compartments (first compartment A and second compartment B) in the wall surface of a building, and has a compartment penetration 15 that penetrates from one outer surface 11A of the partition 11 to the other outer surface 11B. The partition 11 shown in FIG. 1 is a hollow wall and is composed of two wall materials (partition materials) 12A and 12B arranged with a gap (hollow portion 13) between them. Therefore, the compartment penetration 15 is composed of a through hole 13A formed in one wall material 12A, a through hole 13B formed in the other wall material 12B, and the hollow portion 13 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 may be, for example, circular, elliptical, or similar shapes. 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.

[0015] In this specification, the components (in this embodiment, the sheet-like member 3, the fire-resistant filling material 4, and the fixing members for fixing these, etc.) that are installed in the compartment penetration portion 15 to form the compartment penetration treatment structure 10 are sometimes collectively referred to as compartment penetration treatment materials. In addition, the following describes the configuration of the compartment penetration processing structure on one opening 13C side of the partition section 11, 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.

[0016] The compartment penetration structure 10 according to the first embodiment includes a sheet-like member 3 and a fireproof filler 4 as a compartment penetration material 1.

[0017] [Sheet-like member] The sheet-shaped member 3 closes at least a portion of the gap between the opening of the compartment penetration portion 15 and the inserting body 21. As shown in FIG. 1 , the sheet-shaped member 3 has slits 30 through which the inserting body 21 is inserted, and at least one of the slits 30 extends to the outer edge of the sheet-shaped member 3. The slits 30 are formed by cutting. The sheet-shaped member 3 allows the inserting body 21 to be inserted into the sheet-shaped member 3 through the slits 30 that extend to the outer edge. The sheet-like member 3 has segments 31 formed by incisions, one end of each segment 31 being a free end. Specifically, the sheet-like member 3 preferably has a plurality of segments 31 in which a plurality of slits 30 (four slits 30 in FIG. 1 ) formed by incisions intersect at a single point in the center of the sheet-like member 3, with the center of the sheet-like member 3 being the free end. With this configuration, when the inserter 21 is inserted through the center of the sheet-like member 3, each segment 31 is easily positioned along the inserter 21, making it possible to efficiently close the gap between the inserter 21 and the sheet-like member 3. However, the slit 30 may have a form including a hole through which the inserting body 21 is inserted and the slit 30 extending from the hole to the outer edge of the sheet-like member 3 . The pieces 31 are arranged along the inserts 21 that pass through the inside of the sheet-shaped member 3. With this configuration, the fire resistance of the sheet-shaped member 3 can be easily improved.

[0018] 2, the sheet-like member 3 is arranged on the outer surface 11A from the outside of the partition section 11, except for the segments 31. The sheet-like member 3 blocks at least a portion of the gap 13E between the opening 13C and the insert 21 with at least the segments 31 arranged along the insert 21. However, the sheet-like member may block at least a portion of the gap 13E between the opening 13C and the insert 21 with the segments 31 and the portions other than the segments 31. The sheet-like member 3 is in contact with the outer surface 11A of the partition 11 at locations other than the segments 31. In this embodiment, the segments 31 are arranged so as to be in contact with the outer periphery of the insert 21. By arranging the sheet-like member 3 so that the segments 31 and the locations other than the segments 31 are in contact with both the insert 21 and the partition 11, it is possible to improve fire resistance.

[0019] In this embodiment, the sheet-like member 3 may have at least one layer selected from the group consisting of a base material, an adhesive layer, a cushion layer, and a fire-resistant layer. The sheet-like member 3 is not particularly limited as long as it has a layer containing at least one of a fire-resistant material and a non-combustible material, but it is sufficient that at least one layer contains at least one of a fire-resistant material and a non-combustible material. The non-combustible material is defined in the Building Standards Act and the Enforcement Order of the Building Standards Act. The thickness of the sheet-like member 3 is not particularly limited, but is, for example, 0.1 to 20 mm, and preferably 0.5 to 10 mm.

[0020] The substrate used in the sheet-like member 3 imparts rigidity to the sheet-like member 3, improving the ease of handling of the sheet-like member 3 and the ability to maintain its installed position. When the sheet-like member 3 has a substrate and a fire-resistant material layer, the substrate can suppress expansion of the fire-resistant material layer and control the shape of the expanded fire-resistant material layer. Examples of the substrate include metal foils such as aluminum foil and copper foil, metal foil composites such as glass cloth and composites of metal foil and glass cloth such as aluminum-glass cloth, paper, cloth, and resin film. Among these, from the viewpoint of fire resistance, it is preferable that the substrate is made of a non-combustible material, and preferred specific examples include metal foils and metal foil composites. The thickness of the substrate is not particularly limited, but is, for example, 0.01 to 1 mm, and preferably 0.05 to 0.5 mm. When the thickness of the substrate is within the above range, the sheet-like member 3 can be provided with appropriate flexibility and rigidity.

[0021] The adhesive layer used in the sheet-like member 3, when arranged as the outermost layer, functions to adhere the sheet-like member 3 itself to other members (e.g., the fire-resistant filler 4 or the outer surface 11A of the partition 12), and when arranged as an inner layer, it functions to bond adjacent layers to each other. The adhesive layer may be formed from an adhesive, and examples of the adhesive that can be used include acrylic adhesives, urethane adhesives, rubber adhesives, and silicone resin adhesives. The adhesive layer may be non-flammable, semi-non-flammable, or flame-retardant, and a flame retardant or the like may be blended into the adhesive used. The thickness of the adhesive layer is, for example, 5 to 400 μm, and preferably 10 to 150 μm. When the thickness of the adhesive layer is within the above range, it is possible to impart appropriate adhesiveness.

[0022] The cushion layer used in the sheet-like member 3 imparts flexibility to the sheet-like member 3 and improves its ability to conform to the irregularities of the member on which the sheet-like member 3 is placed. The cushion layer is preferably a foam, and in particular a flame-retardant foam. Examples of foams include urethane foam, phenol foam, styrene foam, PVC foam, polyethylene foam, cross-linked polyethylene foam, polypropylene foam, and other polyolefin foams, and synthetic rubber, with urethane foam being preferred. Flame-retardant foams are those foams to which a flame retardant has been added. The thickness of the cushion layer is, for example, 0.01 to 20 mm, preferably 0.05 to 10 mm. When the thickness of the cushion layer is within the above range, it is possible to impart appropriate conformability.

[0023] The fire-resistant material layer used in the sheet-shaped member 3 is a thermally expandable member that expands when heated. The thermally expandable member prevents the spread of fire by expanding in the event of a fire. The thermally expandable member is preferably formed from a thermally expandable resin composition, as described below. The thickness of the fire-resistant material layer is not particularly limited, but is, for example, 0.1 to 15 mm, and preferably 0.5 to 8 mm. When the fire-resistant material layer has a thickness equal to or less than these upper limit values, flexibility is imparted to the sheet-shaped member 3. When the fire-resistant material layer has a thickness equal to or greater than the lower limit values, fire resistance is more easily ensured.

[0024] In this embodiment, the sheet-like member 3 may be a single layer, but preferably is a multi-layer structure. When the sheet-like member 3 is a multi-layer structure, it is preferable that the sheet-like member 3 has at least two layers selected from the group consisting of a base material, an adhesive layer, a cushioning layer, and a fire-resistant material layer. Having two layers provides the sheet-like member 3 with multiple functions, making it suitable for fire-resistant structures for compartment penetrations under various conditions. Specifically, the sheet-like member 3 has a base material and a fire-resistant material layer. When the sheet-like member 3 is heated, the fire-resistant material layer is properly supported by the base material, allowing heat to be evenly distributed. This allows the fire-resistant material layer to expand approximately uniformly, resulting in good fire resistance. Furthermore, the approximately uniform expansion of the fire-resistant material layer of the sheet-like member 3 allows the sheet-like member 3 to maintain its proper position and not shift, thereby providing stable fire resistance. Furthermore, when the sheet-shaped member 3 has multiple fire-resistant layers, the fire-resistant layer on the side of the expanded partition 11 is more likely to be embedded in the gap 13E, for example, preventing the sheet-shaped member 3 from separating from the partition 11 as it expands, making it less likely to shift from the appropriate installed position. On the other hand, the fire-resistant layer located away from the partition 11 expands evenly because heat is more easily distributed evenly, and the expansion residue can appropriately prevent the spread of fire.

[0025] The sheet-shaped member 3 is preferably configured to have an adhesive fireproof material layer as its outermost layer, or to have an adhesive layer as its outermost layer. With the above configuration, the sheet-shaped member 3 may be disposed in contact with the outer surface 11A of the partition 11 via an adhesive fireproof material layer or adhesive layer disposed on the inner side (i.e., the partition 11 side). With the above configuration, the sheet-shaped member 3 can be fixed to the partition 11 without using a fixing member separate from the sheet-shaped member 3. Furthermore, by imparting adhesiveness to the fireproof material layer itself, an adhesive layer is not required, thereby further simplifying the configuration of the sheet-shaped member 3. When the sheet-shaped member 3 has an adhesive fireproof material layer or adhesive layer as its outermost layer, a release sheet may be attached to the outermost layer. The release sheet is preferably peeled off from the outermost layer during use. The fire-resistant layer can be made adhesive by forming it from butyl rubber or the like.

[0026] When the sheet-like member 3 has a cushion layer, it is preferable that the cushion layer be configured as the outermost layer on the partition side. Also, when the sheet-like member 3 has a cushion layer and an adhesive layer, it is preferable that the cushion layer and the adhesive layer are arranged in this order, with the adhesive layer being configured as the outermost layer on the partition side. With this configuration, the sheet-like member 3 follows the unevenness of the partition 11, improving the adhesion between the sheet-like member 3 and the partition 11 and further improving fire resistance. However, the cushion layer does not have to be provided as the outermost layer, and even in that case, the cushion layer can urge the sheet-like member 3 against the partition portion to ensure a certain degree of adhesion.

[0027] When the sheet-like member 3 has a single layer structure, it is preferably a substrate or a fire-resistant material layer. When the sheet-like member 3 has a multi-layer structure, it may have a two-layer structure, or a three-layer or more layer structure. Examples of two-layer structures include substrate / adhesive layer, substrate / cushion layer, substrate / fire-resistant material layer, fire-resistant material layer / substrate, fire-resistant material layer / adhesive layer, fire-resistant material layer / cushion layer, adhesive layer / substrate, and adhesive layer / fire-resistant material layer. Furthermore, examples of three-layer structures having an adhesive layer as the outermost layer include structures such as substrate / cushion layer / adhesive layer, substrate / fireresistant material layer / adhesive layer, fireresistant material layer / substrate / adhesive layer, fireresistant material layer / cushion layer / adhesive layer, adhesive layer / substrate / adhesive layer, and adhesive layer / fireresistant material layer / adhesive layer. Examples of three-layer structures having a cushion layer as the outermost layer include structures such as fireresistant material layer / substrate / cushion layer, substrate / fireresistant material layer / cushion layer, and adhesive layer / fireresistant material layer / cushion layer. Further examples include laminated structures such as substrate / fireresistant material layer / substrate and fireresistant material layer / substrate / fireresistant material layer. Examples of structures with four or more layers include a three-layer structure further comprising an adhesive layer or cushion layer as the outermost layer. Representative examples include substrate / fireresistant material layer / substrate / adhesive layer, fireresistant material layer / substrate / fireresistant material layer / adhesive layer, substrate / fireresistant material layer / cushion layer / adhesive layer, fireresistant material layer / substrate / fireresistant material layer / adhesive layer, fireresistant material layer / substrate / cushion layer / adhesive layer, adhesive layer / fireresistant material layer / substrate / cushion layer, adhesive layer / fireresistant material layer / substrate / cushion layer, adhesive layer / substrate / fireresistant material layer / cushion layer, adhesive layer / substrate / fireresistant material layer / adhesive layer, adhesive layer / fireresistant material layer / substrate / cushion layer, substrate / fireresistant material layer / adhesive layer / cushion layer, substrate / fireresistant material layer / substrate ... and substrate / substrate / fireproof material layer / adhesive layer / cushion layer, fireproof material layer / substrate / substrate / adhesive layer / cushion layer, fireproof material layer / substrate / adhesive layer / substrate / adhesive layer / cushion layer, substrate / adhesive layer / substrate / fireproof material layer / adhesive layer / cushion layer, substrate / substrate / fireproof material layer / substrate / adhesive layer / cushion layer, substrate / substrate / fireproof material layer / substrate / adhesive layer / cushion layer, substrate / fireproof material layer / substrate / adhesive layer / substrate / adhesive layer / cushion layer, substrate / adhesive layer / substrate / fireproof material layer / substrate / adhesive layer / cushion layer, substrate / adhesive layer / substrate / fireproof material layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / fireproof material layer layer / substrate, cushion layer / adhesive layer / substrate / fire-resistant layer / substrate, cushion layer / adhesive layer / substrate / substrate / fire-resistant layer, cushion layer / adhesive layer / fire-resistant layer / substrate / substrate, cushion layer / adhesive layer / fire-resistant layer / substrate / adhesive layer / substrate, cushion layer / adhesive layer / substrate / adhesive layer / substrate / fire-resistant layer, cushion layer / adhesive layer / substrate / substrate / fire-resistant layer, cushion layer / adhesive layer / substrate / substrate / fire-resistant layer / substrate, cushion layer / adhesive layer ... Cushion layer / adhesive layer / substrate / fire-resistant material layer / adhesive layer / cushion layer, cushion layer / adhesive layer / fire-resistant material layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / fire-resistant material layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / substrate / fire-resistant material layer / adhesive layer / cushion layer, cushion layer / adhesive layer / fire-resistant material layer / substrate / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / fire-resistant material layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / fire-resistant material layer / substrate / adhesive layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / adhesive layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / adhesive layer / substrate / fire-resistant material layer / adhesive layer / cushion layer,Examples include cushion layer / adhesive layer / substrate / substrate / fire-resistant material layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / fire-resistant material layer / substrate / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / fire-resistant material layer / substrate / adhesive layer / substrate / adhesive layer / cushion layer, cushion layer / adhesive layer / substrate / adhesive layer / substrate / fire-resistant material ... etc. In each of the above-described laminated structures, the left side is the side opposite the partition portion, and the right side is the partition portion side. Also, the outermost layer means the outermost layer on the partition portion side. In a sheet-like member 3 having a multi-layer structure, adjacent layers may be bonded together using a known adhesive, and therefore, in each of the above-mentioned laminated structures, an adhesive layer may be provided between each layer as appropriate. Furthermore, in a sheet-like member 3 having a multi-layer structure, the layers may be bonded together using an adhesive layer. Furthermore, the sheet-like member 3 may have two or more consecutive layers of the same type laminated together, and two consecutive layers of the same type may be conveniently referred to as one layer in each of the above-mentioned laminated structures. For example, in each of the above-mentioned laminated structures, two consecutive layers of different compositions may be referred to as one fire-resistant layer. In the multi-layer structure, the sheet-like member 3 may have the same layer structure throughout, or may have a partially different structure. For example, the layer structure between the base material and the fireproof material layer may be partially changed.

[0028] The sheet-like member 3 can be fixed to the outer surface 11A of the partition 11 by fixing members such as staplers and screws that are separate from the sheet-like member 3. These fixing members are preferably inserted and installed from the outside of the sheet-like member 3 (i.e., the side opposite the partition 11). Of course, the sheet-like member 3 may be fixed to the partition section 11 by a combination of two or more of these methods. The fixing member may fix the sheet-like member 3 to the partition section 11 at a location arranged on the outer surface 11A.

[0029] [Fireproof filler] 2, the refractory filler 4 is arranged so as to be in contact with the pieces 31, and fills at least a part of the gap between the sheet-like member 3 and the insert 21. At this time, the pieces 31 function as a support that supports the refractory filler 4. By being arranged so as to be in contact with the pieces 31 that function as a support, the refractory filler 4 can remain in the gap between the sheet-like member 3 and the insert 21, and can fill the gap between the sheet-like member 3 and the insert 21. Examples of the fireproof filler 4 include amorphous materials such as putty, rock wool, glass wool, cellulose fiber, insulation board, gypsum board and board scraps, extruded polystyrene foam, phenolic foam, rigid urethane foam, and non-flammable urethane foam. To improve the handleability of the fireproof filler 4, which is an amorphous material, the fireproof filler 4 may be covered with an exterior material. The exterior material is not particularly limited as long as it is a material that can encapsulate the fireproof filler 4 and maintain the shape of the fireproof filler 4. Examples of the exterior material include metal and resin materials, and from the perspective of flexibility and handleability, a resin film such as a polyolefin resin is preferable. Alternatively, the exterior material may form a bag, and the fireproof filler 4 may be placed inside the bag.

[0030] The fire-resistant filler 4 is preferably a heat-absorbing material, a heat-insulating material, or a heat-expanding material, and more preferably a heat-expanding material that expands when heated. The heat-expanding material prevents the spread of fire by expanding during a fire. The heat-expanding material is preferably formed from a heat-expanding resin composition, as described below. In order to form the heat-expanding resin composition into an amorphous putty, the type and amount of resin, the amount of heat-expanding graphite, the type and amount of inorganic filler, etc. may be appropriately adjusted.

[0031] (Thermal Expandable Resin Composition) The thermally expandable resin composition used in the fire-resistant material such as the fire-resistant material layer and the fire-resistant filler 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-like member 3 and the fire-resistant filler 4 can be easily bent 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.

[0032] 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, 70 times, and preferably 50 times. When multiple fireproof material layers with different expansion ratios are laminated on the sheet-like member, the expansion ratio may be selected within the above range. Furthermore, for example, the difference between the expansion ratio of the fireproof material layer farthest from the outer surface of the partition and the expansion ratio of the fireproof material layer closest to the outer surface of the partition is preferably 10 to 80 times, more preferably 20 to 70 times, and even more preferably 30 to 60 times. The expansion ratio can be calculated by supplying the thermally expandable member to an electric furnace, heating it at 600°C for 30 minutes, measuring the thickness of the test piece, and then calculating the thickness by dividing the thickness of the test piece after heating by the thickness of the test piece before heating.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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 to 150 parts by mass, and preferably in the range of 10 parts by mass to 100 parts by mass, relative to 100 parts by mass of the resin component. When the plasticizer content is equal to or greater than these lower limits, good moldability is likely to be achieved, and when it is equal to or less than these upper limits, the molded article is provided with appropriate strength.

[0037] 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 easy to bend and deform. 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.

[0038] 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.

[0039] 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.

[0040] 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, the thermal expandability is good. Furthermore, when the content is 300 parts by mass or less, the moldability is good, and the surface properties, mechanical properties, flexibility, etc. of the sealing member are also good. Furthermore, by selecting the content of thermally expandable graphite within the above range, the expansion ratio can be easily adjusted within a desired range. 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, more preferably in the range of 15 parts by mass or more and 100 parts by mass or less.

[0041] 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.

[0042] 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.

[0043] 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 or a release sheet, and then appropriately dried, cured, etc., 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 consisting of a single fire-resistant material layer. After peeling from the release sheet, the sheet-like member may be laminated on another layer to obtain a multilayered sheet-like member. Alternatively, the composition may be laminated on another layer while still laminated on the release sheet or another support.

[0044] [Construction method] The construction method for the compartment penetration treatment structure 10 in this embodiment includes the steps of installing the above-mentioned sheet-like member 3, which has a cut piece 31 and is arranged along the insert 21 so as to block at least a portion of the gap 13E between the insert 21 and the opening 13C of the compartment penetration portion 15 provided in the partition 11. Then, the step of installing the refractory filler 4 is performed, which is arranged so as to be in contact with the piece 31 and to block at least a portion of the gap between the sheet-like member 3 and the insert 21. In this way, construction can be performed by arranging the piece 31 of the sheet-like member 3 along the insert 21 and installing the refractory filler 4 so as to be in contact with the piece 31. Therefore, construction is easy.

[0045] According to the configuration of this embodiment described above, the gap 13E inside the opening 13C of the compartment penetration 15 is filled by the sheet-like member 3 and the fire-resistant filler 4, the sheet-like member 3 has at least one layer containing at least one of a fire-resistant material and a non-combustible material, and the fire-resistant filler 4 contains a fire-resistant material, so that the compartment penetration treatment structure 10 can be given appropriate fire resistance performance. In addition, in this embodiment, the fireproof structure is formed by the sheet-like member 3 and the fireproof filler 4 without placing filler materials such as fireproof putty or rock wool inside the compartment penetration part 15, so there is no variation among workers.

[0046] Furthermore, in this embodiment, at least a portion of each of the sheet-like member 3 and the refractory filler 4 is exposed and visible from the outside. If a fixing member is provided to fix the sheet-like member 3 or the refractory filler 4, the fixing member should also be positioned in a position that is visible from the outside. No other members are provided inside the compartment penetration portion 15 except for the insert 21. Therefore, the compartment penetration treatment material can be easily inspected visually or by photographing whether it has been installed as specified. Furthermore, forgetting to install the material is less likely to occur.

[0047] [Modification 1 of the First Embodiment] In the compartment penetration structure 10 shown in Fig. 2, the segment 31 is arranged outside the compartment penetration portion 15 along the insert 21, so that nothing other than the insert 21 is provided inside the compartment penetration portion 15. However, as shown in Fig. 3, the compartment penetration structure 10 may also be arranged such that the segment 31 is arranged inside the compartment penetration portion 15 along the insert 21, so that the segment 31 is arranged inside the compartment penetration portion 15 in addition to the insert 21.

[0048] In the compartment penetration treatment structure 10 in which the segment 31 is disposed inside the compartment penetration part 15, the segment 31 functions as a support, and the fireproof filler 4 is disposed so as to be in contact with the segment 31 functioning as a support. In other words, the fireproof filler 4 can remain in the gap between the sheet-like member 3 and the insert 21 at the opening 13C of the compartment penetration part 15, and can close the gap between the sheet-like member 3 and the insert 21. In this first modification, the fireproof filler 4 may or may not penetrate into the compartment penetration portion 15 together with the piece 31.

[0049] [Modification 2 of the First Embodiment] 2 shows a configuration in which at least a portion of the segment 31 is disposed in contact with the insert 21. However, as shown in FIG. 4, the segment 31 of the compartment penetration structure 10 may be disposed in such a manner that it is not in contact with the insert 21 but in contact with the refractory filler 4 disposed in contact with the insert 21.

[0050] In the compartment penetration structure 10 shown in Fig. 4, the piece 31 is arranged so as to be in contact with the refractory filler 4 arranged in contact with the insert 21, and as a result, the piece 31 is arranged along the insert 21 and blocks at least a part of the gap between the insert 21 and the opening 13C of the compartment penetration part 15 provided in the partition part 11. In other words, in the compartment penetration structure 10 shown in Fig. 4, it is not necessary to supply the refractory filler 4 after arranging the piece 31 so as to be in contact with the insert 21, and by bonding the piece 31 and the insert 21 with the refractory filler 4, it is possible to block at least a part of the gap between the insert 21 and the opening 13C of the compartment penetration part 15 provided in the partition part 11.

[0051] [Second embodiment] Next, a second embodiment of the present invention will be described in detail. The second embodiment differs from the first embodiment in that it further includes a cover member 5, as shown in FIGS. 5 and 6. The differences between the second embodiment and the first embodiment will be described below. Furthermore, parts whose description will be 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.

[0052] [Cover member] The cover member 5 is provided to connect to the sheet-like member 3 and is a member that closes at least a portion of the gap between the sheet-like member 3 and the insert 21. The cover member 5 is a member that covers the sheet-like member 3 and the fire-resistant filler 4 provided in the partition portion 11. For example, as shown in FIG. 5, four cover members 5 are used to connect to the four edges of the sheet-like member 3, forming four extensions extending outward from the sheet-like member 3, and as shown in FIG. 6, they cover the sheet-like member 3 provided in the partition portion 11. Examples of means for connecting the cover member 5 to at least a portion of the sheet-like member 3 include means for fixing by known fixing means such as adhesives, pressure-sensitive adhesives, adhesive tapes, and fixing members such as tackers and screws. Here, the adhesives, pressure-sensitive adhesives, and adhesive tapes are preferably made of non-combustible, semi-non-combustible, or flame-retardant materials, and it is preferable to blend flame retardants or the like into the adhesives, pressure-sensitive adhesives, etc. The cover member 5 is sheet-shaped and deformable, so that it can easily cover the sheet-shaped member 3 and the refractory filler 4.

[0053] As shown in FIG. 6 , the portion of the cover member 5 that covers the opening 13C of the compartment penetration portion 15 surrounds the penetrating body 21 so as to be in contact with it, and is fixed to the penetrating body 21 by a string-like member 22 wound around it from the outside. The string-like member 22 may be any bendable member, and is preferably a wire member including a wire. The wire member may be a metal wire alone, or 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 maul. When a wire member is used, the cover member 5 can be fixed to the penetrating body 21 simply by twisting or twisting it. In another embodiment (not shown), the cover member 5 has a portion covering the opening 13C of the compartment penetration portion 15 that surrounds the inserter 21 so as to be in contact with the inserter 21, and is fixed to the inserter 21 by adhesive tape wound from the outside (i.e., the side opposite the inserter 21). The adhesive tape preferably has a substrate and an adhesive layer provided on one side of the substrate. The substrate may be made of paper, resin film, cloth, or the like, or may be made of the non-flammable materials described above. 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 also contain a known flame retardant. In another embodiment not shown, the cover member 5 may have a portion covering the opening 13C of the compartment penetration portion 15 that surrounds the penetrating body 21 so as to be in contact with the penetrating body 21, and may be fixed to the penetrating body 21 by a fixing member such as a stapler or screw installed from the outside (i.e., the side opposite the penetrating body 21). In another embodiment not shown, the cover member 5 may have, for example, an adhesive fire-resistant material layer or an adhesive layer. The adhesive fire-resistant material layer and the adhesive layer may constitute the outermost layer of the cover member 5. That is, the cover member 5 may have at least one of an adhesive fire-resistant material layer and an adhesive layer on the inside (i.e., the side facing the inserter 21). In another embodiment (not shown), the cover member 5 may be fixed by, for example, a fixing piece formed by a notch formed in the cover member 5. The fixing piece may, for example, maintain the reduced-diameter shape of the cover member 5 surrounding the inserter 21, thereby fixing the cover member 5 to the inserter 21. Specifically, the tip of the cover member 5 may have a stacked structure in which multiple cover members 5 are stacked, and multiple notches may be formed at intervals in the circumferential direction in the tip, with tongue-shaped fixing pieces provided between adjacent notches in the circumferential direction, and the fixing pieces themselves may have a stacked structure. The cover member 5 is fixed to the inserter 21 by maintaining the reduced-diameter shape with the fixing piece having the stacked structure. The stacked structure may be formed, for example, by folding back the tip of the cover member 5, and the notch may, for example, be provided obliquely relative to the axial direction.

[0054] The cover member 5 preferably covers a portion of the sheet-like member 3 and the refractory filler 4, making the portion of the sheet-like member 3 and the refractory filler 4 invisible from the outside. Specifically, it is preferable to cover the portion of the sheet-like member 3 through which the insert 21 is inserted and the refractory filler 4, thereby improving the design of the compartment penetration part 15 and the fire resistance of the compartment penetration part 15. As another embodiment (not shown), a means for making the portion of the sheet-like member 3 and the refractory filler 4 invisible from the outside may be such that the cover member 5 covers the portion of the sheet-like member 3 and the refractory filler 4, and a metal foil, a metal foil composite, or the like is fixed to the end face 3C of the sheet-like member 3 to cover it. In addition, as a means for making a portion of the sheet-like member 3 and the refractory filler 4 invisible from the outside, in another embodiment not shown, when a portion of the sheet-like member 3 and the refractory filler 4 are covered with a cover member 5, the gap that occurs between the cover member 5 and the sheet-like member 3 and the refractory filler 4 may be covered with a metal foil, a metal foil composite, or the like other than the cover member 5. On the other hand, the cover member 5 may cover a portion of the sheet-like member 3 so that it is visible from the outside. Specifically, the cover member 5 may make the end surface 3C of the sheet-like member 3 visible from the outside, as shown in Fig. 6. By making the end surface 3C of the sheet-like member 3 visible from the outside when the cover member 5 is installed, it is possible to easily perform a visual inspection to confirm that the sheet-like member 3 is installed in the compartment penetration portion 15. Fig. 6 shows a configuration in which only the end surface 3C is visible, but as shown in Fig. 7, a portion of the surface 3A of the sheet-like member 3 may be exposed, making part of the surface 3A visible in addition to the end surface 3C.

[0055] The cover member 5 is preferably placed so as to be in contact with the sheet-like member 3 and the insert 21. By placing the cover member 5 so as to be in contact with the sheet-like member 3 and the insert 21, the opening 13C of the partition portion 11 can be blocked by the sheet-like member 3 and the cover member 5, thereby improving fire resistance.

[0056] The cover member 5 is installed so as to form a gap 40 between it and the sheet-like member 3. The gap 40 between the sheet-like member 3 and the cover member 5 allows the cover member 5 to be fixed with a margin for axial movement of the insert 21. Since the cover member 5 is fixed to the insert 21 with a margin, even if the insert 21 arranged inside the sheet-like member 3 and the cover member 5 is moved in the axial direction after the sheet-like member 3 and the cover member 5 are installed, the margin of the cover member 5 prevents the sheet-like member 3 and the cover member 5 from moving together with the insert 21. By preventing the sheet-like member 3 and the cover member 5 from moving together with the insert 21, it is possible to prevent the sheet-like member 3 and the cover member 5 from shifting from the compartment penetration portion 15. In other words, with this configuration, the sheet-like member 3 and the cover member 5 can be maintained and arranged in an appropriate position in the compartment penetration portion 15, and the fire resistance of the compartment penetration portion 15 can be maintained. There is a gap 40 between the sheet-like member 3 and the cover member 5, and various configurations can be used to fix the cover member 5 with a margin for axial movement of the inserting body 21. For example, a configuration in which at least a part of the cover member 5 is made of a flexible or stretchable material that allows it to bend or curve, or a configuration in which at least a part of the cover member 5 is fixed to the inserting body 21 with some slack, can be mentioned.

[0057] The cover member 5 may be made of a single layer of fire-resistant material, a single layer of non-combustible material, or both a fire-resistant and non-combustible material layer, but preferably has a non-combustible material layer, and more preferably is made of a non-combustible material layer. Furthermore, the cover member 5 may have layers other than the fire-resistant and non-combustible material layers, such as a material layer made of a material other than a non-combustible material, an adhesive layer, etc. The cover member 5 is preferably made of a metal foil such as aluminum foil, glass cloth, or a metal foil composite, which is a composite of metal foil and glass cloth such as aluminum glass cloth. These constitute the non-combustible material layer. Among these, aluminum glass cloth is more 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, and 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 cover member 5. Therefore, even if the cover member 5 has a non-combustible material layer, it can be wrapped 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.

[0058] As described above, the cover member 5 is preferably a sheet that can be deformed to cover the sheet-like member 3, and is preferably thinner than the sheet-like member 3 so as to be flexible and easily deformable. The thickness of the cover member 5 is not particularly limited, but is, for example, 0.01 to 1 mm, and preferably 0.05 to 0.5 mm.

[0059] The fire-resistant material layer used in the cover member 5 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, 0.01 to 1 mm, and preferably 0.05 to 0.5 mm. When the fire-resistant material layer has a thickness equal to or less than these upper limits, flexibility is imparted to the cover member 5. Therefore, even if the cover member 5 has a fire-resistant material layer, it can be wrapped around the outer periphery of the insert 21. Furthermore, when the thickness is equal to or greater than the lower limit, fire resistance is more easily ensured.

[0060] The cover member 5 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 layer of the cover member 5. With the above-described configuration, the cover member 5 can be fixed to the sheet-like member 3 or the insert 21 without using a fixing member separate from the cover member 5. Furthermore, by making the fire-resistant material layer itself adhesive, it is not necessary to provide an adhesive layer, and therefore the configuration of the cover member 5 can be further simplified. When the cover member 5 has an adhesive fire-resistant material layer or an adhesive layer on its outermost layer, a release sheet may be attached to the outermost layer. The release sheet may be peeled off from the outermost layer when in use.

[0061] [Construction method] The construction method for the compartment penetration treatment structure 10 in this embodiment includes the steps of installing the above-mentioned sheet-like member 3, which has a cut piece 31 and is arranged along the insert 21 so as to block at least a portion of the gap 13E between the insert 21 and the opening 13C of the compartment penetration portion 15 provided in the partition 11. Then, the step of installing a refractory filler 4, which is arranged so as to be in contact with the cut piece 31 and block at least a portion of the gap between the sheet-like member 3 and the insert 21, is performed. Then, the sheet-like member 3 and the refractory filler 4 are covered with a cover member 5 installed on the sheet-like member 3, and a portion of the cover member 5 is fixed to the insert 21, thereby completing the construction. Therefore, the construction is easy.

[0062] According to the configuration of this embodiment described above, the gap 13E inside the opening 13C of the compartment penetration 15 is blocked by the sheet-like member 3, the fire-resistant filler 4 and the cover member 5, and the sheet-like member 3 and the cover member 5 have at least one layer containing at least one of a fire-resistant material and a non-combustible material, and the fire-resistant filler 4 contains a fire-resistant material, so that the compartment penetration treatment structure 10 can be imparted with high fire resistance performance. Furthermore, in this embodiment, the fireproof structure is formed by the sheet-like member 3, the fireproof filler 4 and the cover member 5 without placing filler materials such as fireproof putty or rock wool inside the compartment penetration portion 15, so there is no variation among workers.

[0063] Furthermore, in this embodiment, at least a portion of each of the sheet-like member 3 and the cover member 5 is exposed and visible from the outside. If a fixing member is provided to fix the sheet-like member 3 or the cover member 5, the fixing member should also be positioned in a position that is visible from the outside. No other members are provided inside the compartment penetration portion 15 except for the insert 21. Therefore, the compartment penetration treatment material can be easily inspected visually or by photographing whether it has been installed as specified. Furthermore, forgetting to install the material is less likely to occur.

[0064] [Modification of the second embodiment] The compartment penetration structure 10 shown in FIG. 5 uses four cover members 5 connected to the four side edges of the sheet-like member 3. However, as shown in FIG. 8, the compartment penetration structure 10 may have a single cover member 5 having slits 50 for inserting the penetrating body 21 therein, with at least one of the slits 50 extending to the outer edge of the cover member 5. The slits 50 are formed by cutting. The cover member 5 allows the penetrating body 21 to be inserted into the cover member 5 through the slit 50 extending to the outer edge.

[0065] Furthermore, the sheet-shaped member 3 may have a structure in which the base material, which is one layer of the sheet-shaped member 3, extends outward beyond the other layers. With such a structure, the extended portion of the base material can be used as the cover member 5 as it is.

[0066] [Other embodiments] 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 each of the above embodiments, the compartment penetration treatment material may have a member connected to the sheet-like member 3 and placed inside the compartment penetration part 15. Examples of such members include fire-resistant materials and accessories. As a specific example, a modified example of the first embodiment is shown in Fig. 9. As the fire-resistant material, for example, a block-shaped fire-resistant material 60 as shown in Fig. 9 is used, and the block-shaped fire-resistant material 60 is preferably connected to the sheet-shaped member 3. The manner of connection is not particularly limited, and for example, the fire-resistant material 60 may be laminated on one side of the sheet-shaped member 3 or connected to an end face of the sheet-shaped member 3. As described above, the fire-resistant material 60 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.

[0067] 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.

[0068] 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. [Explanation of symbols]

[0069] 3 Sheet-like members 4 Refractory filler 5 Cover member 10 Compartment penetration processing structure 11 Partition 12A, 12B wall material 13 Hollow part 13A,13B through hole 13C,13D opening 13E Gap 15 Compartment penetration 21 Penetrator 22 String-like member 30 slits 31 Intercept 40 void 50 slits 60 Fireproof materials

Claims

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, the compartment penetration part having a fire-resistant structure, a sheet-like member having a cut piece formed by a slit, the cut piece being arranged along the insert and blocking at least a part of the gap between the opening of the compartment penetration part provided in the partition part and the insert; A compartment penetration processing structure comprising: a fire-resistant filler material that is arranged so as to contact the piece and fills at least a portion of the gap between the sheet-like member and the insert.

2. The compartment penetration structure according to claim 1 , wherein the sheet-like member has at least one layer selected from the group consisting of a base material, an adhesive layer, a cushion layer, and a fire-resistant material layer.

3. The compartment penetration treatment structure according to claim 2 , wherein the sheet-like member has the substrate and the fire-resistant material layer.

4. The compartment penetration structure according to claim 2 , wherein the adhesive layer or the adhesive fire-resistant material layer is disposed so as to be in contact with the partition portion.

5. The compartment penetration processing structure according to claim 2 , wherein the cushion layer is disposed so as to be in contact with the partition portion.

6. The compartment penetration structure according to claim 1 , wherein nothing is provided inside the compartment penetration part other than the penetrator.

7. The compartment penetration structure according to claim 1 , wherein the piece is disposed inside the compartment penetration portion in addition to the insert.

8. The compartment penetration treatment structure according to claim 1 , wherein the section acts as a support for the refractory filler material.

9. The compartment penetration structure according to claim 1 , wherein the sheet-like member and the fire-resistant filler are provided on both sides of the partition.

10. The compartment penetration structure according to claim 1 , wherein the segment is not in contact with the insert, but is arranged to be in contact with the refractory filler that is arranged in contact with the insert.

11. The compartment penetration structure according to claim 1 , further comprising a cover member that closes at least a part of the gap between the sheet-like member and the insert.

12. The compartment penetration processing structure described in claim 11, wherein at least one of the sheet-like member and the cover member is fixed to the insert and the partition portion by at least one of an adhesive layer or an adhesive fire-resistant material layer, a string-like member or adhesive tape wound from the outer periphery, a fixing member installed from the outside, and a fixing piece formed by a notch in the cover member.

13. The compartment penetration structure according to claim 11 , wherein the sheet-like member is covered with the cover member, and at least one of an end face and a surface of the sheet-like member is visible from the outside.

14. The compartment penetration treatment structure according to claim 11 , wherein a gap exists between the sheet-like member and the cover member.

15. A compartment penetration treatment material that is formed in a partition of a building and has a fire-resistant structure for a compartment penetration part into which a long penetrating body is inserted, a sheet-like member having a cut piece formed by a slit, the cut piece being arranged along the insert and blocking at least a part of the gap between the opening of the compartment penetration part provided in the partition part and the insert; A compartment penetration treatment material comprising: a fire-resistant filler material that is arranged so as to contact the piece and that fills at least a portion of the gap between the sheet-like member and the insert.

Images