Compartment penetration treatment structure, compartment penetration treatment material, and construction method for compartment penetration treatment structure

Abstract

The present invention provides a compartment penetration treatment structure, a construction method for the compartment penetration treatment structure, and a compartment penetration treatment material that can reduce variations in fire resistance performance and improve fire resistance performance. [Solution] The partition penetration treatment structure of the present invention is a partition penetration treatment structure 10 which provides a fire-resistant structure to a partition penetration 15 formed in a partition 11 of a building, through which a long insertable body 21 is inserted, and comprises a first cover member 5 that closes at least a part of the gap between the opening 13C of the partition penetration 15 provided in the partition 11 and the insertable body 21, and the first cover member 5 has at least a fire-resistant material layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material, and the base material and the fire-resistant material layer are laminated in at least two layers.

Description

Technical Field

[0001] The present invention relates to a partition penetration treatment structure formed in a partition part such as a building, a partition penetration treatment material for forming the partition penetration treatment structure, and a construction method of the partition penetration treatment structure.

Background Art

[0002] In buildings such as apartment houses, office buildings, and schools, in partition parts such as walls, partition penetration parts may be provided to allow long insertion bodies such as cables and pipes to pass through. When a fire breaks out in any section, the partition penetration part is required to have a fire prevention measure (fire-resistant structure) to prevent the spread of fire to other sections. The partition part generally consists of two wall parts, and a hollow wall with a hollow part between the wall parts is common.

[0003] As a method of making the partition penetration part a fire-resistant structure, for example, a method of filling an amorphous filler such as a refractory putty in the gap between the long insertion body and the through-hole is known. When using an amorphous filler, a cylindrical member made of a refractory material or the like may be arranged between the inside of the through-hole of each wall part and the insertion body (see, for example, Patent Documents 1 and 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, when amorphous fillers are used for fire protection treatment of compartment penetrations, variations in workmanship can occur, sometimes resulting in insufficient fire resistance. Furthermore, when fire-resistant materials and their accessories are installed within the building structure, the extent (quantity, thickness, length, etc.) of their installation may be unclear, or it may be difficult to determine if they are installed according to regulations. Therefore, to confirm whether fire-resistant materials are installed according to regulations, it is necessary to destroy the compartment penetration structure and inspect its internal structure.

[0006] Furthermore, in order to reduce variations among workers, there were kits that integrated components of predetermined quantities and sizes. However, these tended to have a large number of components, making it easy for components to be lost or forgotten during installation. Additionally, the packaging of each kit resulted in a large amount of waste.

[0007] Furthermore, in compartment penetration structures where long insertions such as cables and pipes are inserted, if the insertions are moved after the compartment penetration treatment structure has been applied, the fire-resistant materials installed inside may shift from their proper positions. External forces such as earthquakes can also cause the fire-resistant materials to shift from their proper positions. In addition, if the fire-resistant material does not expand uniformly but expands unevenly, it may shift from its proper position or fall off. As a result of the fire-resistant materials shifting from their proper positions, it becomes difficult for the fire-resistant structure of the compartment penetration to exhibit the desired fire resistance performance.

[0008] Therefore, the object of the present invention is to provide a compartment penetration treatment structure, a method for constructing 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] This invention was made to solve the above problems, and the gist of this invention is as follows. [1] A partition penetration treatment structure for which a partition penetration formed in a partition of a building and through which a long insert is inserted is made of a fire-resistant structure, comprising a first cover member that closes at least a portion of the gap between the opening of the partition penetration provided in the partition and the insert, wherein the first cover member has at least a fire-resistant material layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material, and the base material and the fire-resistant material layer are laminated in at least two layers. [2] The partition penetration treatment structure according to [1], wherein the first cover member is made of at least three layers of the base material and the fire-resistant material layer stacked alternately. [3] The partition penetration treatment structure according to [1] or [2], wherein the first cover member is a continuous laminate of the same type of base material and fire-resistant material layer. [4] The partition penetration treatment structure according to any one of [1] to [3], wherein the substrate having an adhesive base material or adhesive layer, or the fire-resistant material layer having an adhesive fire-resistant material layer or adhesive layer, is arranged in contact with the partition portion or the insertion body. [5] The partition penetration treatment structure according to any one of [1] to [4], wherein the first cover member is fixed to the partition portion and the insertion body, and a gap is formed between the partition portion and the insertion body. [6] The partition penetration treatment structure according to any one of [1] to [5], wherein the base material is arranged in the outermost layer on the opposite side of the partition portion. [7] A partition penetration processing structure according to any one of [1] to [6], wherein nothing other than the insertion body is provided inside the partition penetration portion. [8] The partition penetration treatment structure according to any one of [1] to [7], wherein the first cover member is fixed to the partition by at least one of the adhesive fire-resistant material layer or adhesive layer arranged on the inside and a fixing member installed from the outside. [9] A partition penetration treatment structure according to any one of [1] to [8], comprising a second cover member covering the first cover member, wherein the second cover member has at least a base material and a fire-resistant material layer consisting of at least one of a fire-resistant putty material and a thermally expandable expansion material.

[10] The partition penetration treatment structure according to [9], wherein the second cover member is made of at least two layers of the base material and the fire-resistant material layer.

[11] The partition penetration treatment structure according to [9] or

[10] , wherein the second cover member is fixed to the partition and the insertion body by at least one of the following: the fire-resistant material layer or adhesive layer having adhesive properties arranged on the inside, a string-like member or adhesive tape wrapped around from the outside, and a fixing member installed from the outside.

[12] A partition penetration treatment structure according to any one of [9] to

[11] , wherein there is a gap between the first cover member and the second cover member.

[13] A partition penetration processing structure according to any one of [9] to

[12] , wherein nothing other than the first cover member is provided between the partition portion and the second cover member.

[14] The partition penetration treatment structure according to any one of [1] to

[13] , wherein the partition penetration treatment material having the first cover member is provided on both sides of the partition portion.

[15] The partition penetration treatment structure according to any one of [1] to

[14] , wherein the first cover member has a sound-absorbing layer.

[16] The partition penetration treatment structure according to any one of [1] to

[15] , wherein the first cover member has a sound insulation layer.

[17] The partition penetration treatment structure according to any one of [9] to

[16] , wherein the second cover member has a sound-absorbing layer.

[18] The partition penetration treatment structure according to any one of [9] to

[17] , wherein the second cover member has a sound insulation layer.

[19] A partition penetration treatment material used to make a partition penetration formed in a partition of a building and through which a long insert is inserted into the interior of the partition penetration, comprising a first cover member that closes at least a portion of the gap between the opening of the partition penetration provided in the partition and the insert, wherein the first cover member has at least a fire-resistant material layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material, and the base material and the fire-resistant material layer are laminated in at least two layers.

[20] The partition penetration treatment material according to

[19] , wherein the first cover member is made of the base material and the fire-resistant material layer laminated alternately in at least three layers.

[21] A construction method of a partition penetration treatment structure in which a partition penetration portion formed in a partition portion of a building and through which a long insertion body is inserted is made of a fire-resistant structure, including a step of installing a first cover member that closes at least a part of a gap between an opening of the partition penetration portion provided in the partition portion and the insertion body, the first cover member having at least a fire-resistant material layer composed of at least one of a putty material having fire resistance and an expansion material having thermal expansion, and the base material and the fire-resistant material layer being laminated in at least two layers. A construction method of a partition penetration treatment structure.

[22] The construction method of the partition penetration treatment structure according to

[21] , wherein the first cover member has at least three layers of the base material and the fire-resistant material layer laminated alternately.

Effect of the Invention

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

Brief Description of the Drawings

[0011] [Figure 1] It is a perspective view showing a state before a partition penetration treatment material is installed in a partition penetration treatment structure according to a first embodiment of the present invention. [Figure 2] It is a cross-sectional view showing a partition penetration treatment structure according to a first embodiment of the present invention. [Figure 3] It is a schematic cross-sectional view showing the configuration of a first cover member of a partition penetration treatment structure according to a first embodiment of the present invention. [Figure 4] It is a schematic cross-sectional view showing the configuration of a first cover member of a partition penetration treatment structure according to a first embodiment of the present invention. [Figure 5] It is a schematic cross-sectional view showing the configuration of a first cover member of a partition penetration treatment structure according to a first embodiment of the present invention. [Figure 6] It is a perspective view showing another form of a first cover member in a partition penetration treatment structure according to a modification 1 of a first embodiment of the present invention. [Figure 7]It is a cross-sectional view showing a partition penetration processing structure according to a second modification of the first embodiment of the present invention. [Figure 8] It is a cross-sectional view showing a partition penetration processing structure according to the second embodiment of the present invention. [Figure 9] It is a cross-sectional view showing another modification of the partition penetration processing structure according to the first embodiment of the present invention.

Mode for Carrying Out the Invention

[0012] Hereinafter, the present invention will be described in more detail using embodiments.

[0013] [First Embodiment] As shown in FIG. 1, the partition penetration processing structure according to the first embodiment of the present invention is a partition penetration processing structure in which a partition penetration portion 15 formed in a partition portion 11 of a building and through which a long insertion body 21 is inserted is made of a fire-resistant structure.

[0014] The partition portion 11 in the partition penetration processing structure of the present invention is a member that partitions between compartments (the first compartment A and the second compartment B) on the wall surface of the building, and has a partition penetration portion 15 that penetrates from one outer surface 11A side of the partition portion 11 to the other outer surface 11B side. The partition portion 11 shown in FIG. 1 is a hollow wall and is composed of two wall materials (partition materials) 12A and 12B arranged with an interval (hollow portion 13) therebetween. Therefore, the partition penetration portion 15 is composed of a through-hole 13A formed in one wall material 12A, a through-hole 13B formed in the other wall material 12B, and the hollow portion 13 therebetween. And the outer surface of one wall material 12A constitutes the outer surface 11A of the partition portion 11, and the outer surface of the other wall material 12B constitutes the outer surface 11B of the partition portion 11. The through-holes 13A and 13B may have, for example, a circular shape, an elliptical shape, or a shape approximating these. Note that the through-holes 13A and 13B constitute openings 13C and 13D of the partition penetration portion 15 provided in the partition portion 11 on the outer surfaces 11A and 11B, respectively. [[ID=2,6]]

[0015] In this specification, the members installed in the partition penetration section 15 to form the partition penetration treatment structure 10 (in this embodiment, the first cover member 5 and the fixing members for fixing them) are collectively referred to as partition penetration treatment materials. Furthermore, the configuration of the partition penetration processing structure on one side of the partition 11 (opening 13C) will be described below, but in this embodiment, the configuration of the partition penetration processing structure on the other side of the opening 13D is the same, so its description will be omitted.

[0016] The partition penetration treatment structure 10 according to the first embodiment includes a first cover member 5 as a partition penetration treatment material, and the first cover member 5 has at least a fire-resistant material layer as described later.

[0017] [First cover component] The first cover member 5 is installed so as to cover the opening 13C of the partition penetration 15 provided in the partition 11. In this embodiment, as long as the first cover member 5 is positioned to cover the opening 13C, there may be another member between the first cover member 5 and the opening 13C. The first cover member 5 is sheet-like and deformable, allowing it to be easily fitted tightly to the insertion body 21 and easily cover the opening 13C of the partition penetration portion 15.

[0018] As shown in Figures 1 and 2, the first cover member 5 comprises a first cover portion 50 and a plurality of second cover portions 51 (51A to 51E) connected to the first cover portion 50 and separated from each other. The second cover portions 51 are arranged in a row along one side of the first cover portion 50. The first cover member 5 comprises a first cover portion and a second cover portion, which makes it easier to position the second cover portion 51 on the partition portion 11 while surrounding the insertion body 21 with the first cover portion 50, thus making it easier to install the first cover member 5 so as to cover the opening 11C.

[0019] The first cover member 5 is marked with marks (first mark 52, second marks 53A-53D) indicating the installation positions of the fastening members 6A and 6B. The first cover portion 50 of the first cover member 5 is marked with a mark (first mark 52) indicating the installation position of the fastening material 6B. As shown in Figure 2, after the first cover portion 50 is wrapped around the insertion body 21 and installed, the fastening material 6B is installed on the first mark 52 to secure the first cover portion 50 to the insertion body 21. Furthermore, the second cover portion 51 of the first cover member 5 is marked (second marks 53A to 53D) to indicate the installation position of the fastening material 6A. As shown in Figure 2, after the second cover portion 51 is installed on the outer surface 11A of the partition portion 11, the fastening material 6A is installed from the second marks 53A to 53D to fasten the second cover portion 51 to the partition portion 11. The marks (second marks 53A to 53D) can also be considered marks indicating the fixing points between the first cover section 50 and the second cover section 51 and the insertion body 21 and the partition section 11, but they may be omitted.

[0020] As shown in Figure 2, the second cover portion 51 of the first cover member 5 is positioned on the outer surface 11A of the partition portion 11. The second cover portion 51 of the first cover member 5 is then secured to the partition portion 11 of the partition penetration portion 15 by inserting the fastening material 6A from the outside of the second cover portion 51 through the second marks 53A to 53D into the partition portion 11 of the partition penetration portion 15. The fastening material 6A for securing the second cover portion 51 can be any material that can fix and secure the first cover portion 5 to the compartment penetration portion 15 by inserting it from the second marks 53A to 53D attached to the first cover member 5 into the partition portion 11 of the compartment penetration portion 15. Examples include fastening materials such as staples and screws. It is preferable to interpose a washer 60 between the fastening material 6A and the first cover member 5 in order to improve the fixing strength of the first cover member 5.

[0021] The first cover portion 50 of the first cover member 5 surrounds the insertion body 21 so as to be in contact with it, and is secured to the insertion body 21 by being restrained and fixed from the outside by a fastening material 6B along the first mark 52 attached to the first cover portion 50. In a configuration where the first cover member 5 is secured from the outside by a fastening material 6B along the first mark 52, a bendable member can be used as the fastening material 6B, and it is preferable that it be a wire member including a wire or adhesive tape. The wire member may be a metal wire alone, a resin-coated wire made by coating a metal wire such as Nejiriko (registered trademark) with resin, or a wire and fiber intertwined, such as a molding. When a wire member is used, the first cover member 5 can be secured to the insertion body 21 simply by twisting or turning it. The adhesive tape can be used to fix the first cover member 5 to the insert by wrapping the first cover portion 50 around the first mark 52 from the outside. The adhesive tape may have a support and an adhesive layer provided on one side of the support. Paper, resin film, cloth, etc. can be used as the support, or the non-combustible materials mentioned above may be used. As for the adhesive layer, for example, acrylic adhesives, urethane adhesives, rubber adhesives, silicone resin adhesives, etc. can be used. In addition, known flame retardants may be added to the adhesive. Furthermore, in a configuration in which the first cover member 5 is fixed by being restrained from the outside along the first mark 52 by a fastening material 6B, fastening members such as tackers and screws installed from the outside of the first mark 52 can be used as the fastening material 6B. As the fastening material 6B that secures the first cover portion 50 of the first cover member 5 to the insertion body 21, it is possible to combine the means shown in the above-described fixing configuration in order to improve the fixing strength. Specifically, the fastening material 6B can be a combination of a wire member and adhesive tape, or a combination of a wire member and fixing members such as screws or staples.

[0022] As described above, fastening material 6B is installed on the first mark 52, so that at least a portion of the first mark 52 is covered by fastening material 6B. Also, fastening material 6A is installed on the second marks 53A to 53D, so that at least a portion of each second mark 53A to 53D is covered by fastening material 6A. With this configuration, at least a portion of each of the first mark 51 and the second marks 53A to 53D becomes invisible from the outside, making it easy to confirm that they are installed according to the regulations.

[0023] The shape and number of the second cover portion 51 are not particularly limited. The shape of the second cover portion 51 may be, for example, a shape in which the upper side has a vertex angle, as shown in Figure 1, or a shape in which the upper side forms sides such as straight lines and curves. The number of the second cover portion 51 may be, for example, five as shown in Figure 1, five or fewer, or five or more.

[0024] The first cover member 5 is preferably fixed to the partition 11 and the insertion body 21. By fixing the first cover member 5 to the partition 11 and the insertion body 21, the opening 13C of the partition 11 can be closed, thereby improving fire resistance. The first cover member 5 is fixed to the partition 11 and the insertion body 21, and is installed so as to form a gap 40 between the partition 11 and the insertion body 21. The gap 40 between the partition 11 and the insertion body 21 allows the first cover member 5 to be fixed with a margin of safety against the axial movement of the insertion body 21. Because the first cover member 5 is fixed to the insertion body 21 with a margin of safety, even if the insertion body 21, which is positioned inside the first cover member 5, is moved axially after the first cover member 5 has been installed, the margin of safety of the first cover member 5 prevents the first cover member 5 from moving together with the insertion body 21. By preventing the first cover member 5 from moving together with the insertion body 21, it is possible to suppress the first cover member 5 from shifting away from the compartment penetration 15. In other words, with this configuration, the first cover member 5 can be maintained in the appropriate position within the compartment penetration 15, and the fire resistance of the compartment penetration 15 can be maintained. There is a gap 40 between the partition 11 and the insertion body 21, and the configuration in which the first cover member 5 is fixed with a margin of error against the axial movement of the insertion body 21 can take various forms. For example, the first cover member 5 may be made of a flexible or stretchable material so that at least a part of it can be bent or curved, and the first cover member 5 may be fixed to the insertion body 21 so that at least a part of it has some slack.

[0025] The first cover member 5 has at least one of a fire-resistant material layer (putty material) formed from a fire-resistant putty material and a fire-resistant material layer (expansion material) formed from a thermally expandable expansion material. The first cover member 5 has a configuration that includes at least a fire-resistant material layer, thereby ensuring the fire protection performance of the compartment penetration treatment structure 10.

[0026] The fire-resistant layer used in the first cover member 5 can be formed from a fire-resistant putty material. The fire-resistant layer formed from the putty material will not be destroyed by fire or the like, and the fire-resistant layer can be maintained. The putty material is preferably formed from a putty composition as described later. Furthermore, the fire-resistant layer used in the first cover member 5 can be formed from a thermally expandable material. The fire-resistant layer formed from the expandable material can fill gaps in the area where it was installed by expanding in the event of a fire, thereby exhibiting fire resistance such as preventing the spread of fire. The expandable material is preferably formed from a thermally expandable resin composition, as will be described later.

[0027] The thickness of the fire-resistant layer is not particularly limited, but is, for example, 0.01 to 10 mm, preferably 0.1 to 5 mm. Having a thickness of the fire-resistant layer below these upper limits provides flexibility to the first cover member 5. Having a thickness above the lower limit makes it easier to ensure fire resistance.

[0028] The base material used in the first cover member 5 supports the fire-resistant layer and evenly transfers heat to the fire-resistant layer. Examples of base materials include metal foils such as aluminum foil and copper foil, metal foil composites such as glass cloth and aluminum glass cloth, paper, cloth, and resin film. Among these, it is preferable that the base material be made of a non-combustible material from the viewpoint of fire resistance, and specifically, metal foils and metal foil composites are examples. Non-combustible materials are those defined in the Building Standards Act and the Enforcement Order of the Building Standards Act. It is preferable that the base material is placed in the outermost layer on the side opposite to the partition portion 11. By placing the base material in the outermost layer of the first cover member 5, the fire-resistant material layer placed on the inside is well supported and heat can be evenly transferred to the fire-resistant material layer, thereby making it easier for the fire-resistant material layer to perform its function. In addition, the design of the first cover member 5 can be enhanced.

[0029] The thickness of the base material is not particularly limited, but is, for example, 0.01 to 2 mm, preferably 0.05 to 1 mm. Having a non-combustible material layer with a thickness below these upper limits provides flexibility to the first cover member 5. Having a thickness above the lower limit makes it easier to ensure fire resistance.

[0030] The first cover member 5 may have a two-layer structure of fire-resistant material layer / base material, but it is preferable that the first cover member 5 has at least three layers of base material and fire-resistant material layer stacked alternately, as shown in Figures 3(a) to (e). Specifically, as shown in Figure 3(a), the first cover member 5 may have three layers of base material 5a1, 5a2 and fire-resistant material layer 5b1 stacked alternately. For example, it can be base material / fire-resistant material layer (putty material) / base material, or base material / fire-resistant material layer (expansion material) / base material. Note that the fire-resistant material layer (putty material) refers to a fire-resistant material layer formed by putty material. Similarly, the fire-resistant material layer (expansion material) refers to a fire-resistant material layer formed by expansion material.

[0031] As shown in Figure 3(b), the first cover member 5 may have three layers of base material 5a1 and fire-resistant material layers 5b1, 5b2 stacked alternately. For example, it can be fire-resistant material layer (putty material) / base material / fire-resistant material layer (putty material), fire-resistant material layer (putty material) / base material / fire-resistant material layer (expansion material), fire-resistant material layer (expansion material) / base material / fire-resistant material layer (putty material), or fire-resistant material layer (expansion material) / base material / fire-resistant material layer (expansion material). In the above description, the left side is the layer furthest from the partition, and the right side is the layer closest to the partition. The same applies below. Of these structures, it is preferable to have at least a fire-resistant material layer formed of putty material. For example, if the first cover member 5 includes a fire-resistant layer formed by putty and a fire-resistant layer formed by an expansive material, the fire-resistant layer formed by the putty will maintain the shape of the first cover member 5 when a fire occurs, while the fire-resistant layer formed by the expansive material will prevent the spread of the fire. Furthermore, if two fire-resistant layers formed by putty are provided so as to sandwich the base material, the fire-resistant layers formed by the putty will firmly maintain the shape of the first cover member 5 when a fire occurs, thereby preventing the first cover member 5 from collapsing when a fire occurs and maintaining high fire resistance performance.

[0032] The first cover member 5 is not limited to a three-layer structure, and as shown in Figure 3(c), it may be constructed by alternately laminating four layers of base materials 5a1, 5a2 and fire-resistant material layers 5b1, 5b2. For example, it can be a base material / fire-resistant material layer (putty material) / base material / fire-resistant material layer (putty material), a base material / fire-resistant material layer (putty material) / base material / fire-resistant material layer (expansion material), a base material / fire-resistant material layer (expansion material) / base material / fire-resistant material layer (putty material), or a base material / fire-resistant material layer (expansion material) / base material / fire-resistant material layer (expansion material).

[0033] Furthermore, as long as the first cover member 5 has a base material / fire-resistant layer / base material or fire-resistant layer / base material / fire-resistant layer in this order, the base material and fire-resistant layer do not need to be arranged alternately one layer at a time, and layers of the same type may be laminated continuously, such as base material / base material or fire-resistant layer / fire-resistant layer. For example, as shown in Figure 3(d), base materials 5a1 and 5a2 may be laminated continuously, and base materials 5a2, 5a3 and fire-resistant layer 5b1 may be laminated alternately. Also, as shown in Figure 3(e), there is no limit to the number of layers of the first cover member 5, and multiple base materials 5a1,...5a n-1 ,5a n and multiple fire-resistant layers 5b1, ... 5b m-1 ,5b m These can be arranged in alternating layers.

[0034] In this invention, the base material and the fire-resistant material layer are alternately laminated in at least three layers. When the first cover member 5 is heated, the fire-resistant material layer is properly supported by the base material, allowing heat to be distributed evenly and resulting in good fire resistance. Furthermore, by using the first cover member 5, a fire-resistant structure is formed without placing fillers such as fire-resistant putty or rock wool inside the compartment penetration 15, thus eliminating variations caused by different workers.

[0035] Furthermore, the multilayer structure constituting the first cover member 5 may have the same layer configuration throughout, or it may have partially different structures. For example, the layer configuration of the base material and the fire-resistant material layer may be partially changed.

[0036] The first cover member 5 may be configured such that, as shown in Figure 4(a), an adhesive base material 5a1 is formed on its outermost surface, or as shown in Figure 4(b), an adhesive layer 55 is provided on its outermost surface, and the cover member 5 may be placed in contact with the outer surface 11A of the partition portion 11 by the adhesive base material or adhesive layer. Furthermore, the first cover member 5 may be configured such that, as shown in Figure 5(a), an adhesive fire-resistant material layer 5b1 is formed on its outermost surface, or as shown in Figure 5(b), an adhesive layer 55 is provided on its outermost surface, and the cover member 5 may be positioned in contact with the outer surface 11A of the partition portion 11 by the adhesive fire-resistant material layer or the adhesive layer. With the above configuration, the first cover member 5 can be fixed to the partition 11 without using a fixing member separate from the first cover member 5. Furthermore, by making the fire-resistant material layer itself adhesive, it is not necessary to provide an adhesive layer, thus further simplifying the structure of the first cover member 5. If the first cover member 5 has an adhesive fire-resistant material layer or adhesive layer on its outermost surface, a release sheet may be attached to that outermost surface. The release sheet should be peeled off from the outermost surface when in use. The base material can be made tacky by forming its surface with butyl rubber or the like. The fire-resistant layer can be made adhesive by forming it with butyl rubber or the like. The adhesive layer is formed by an adhesive, and examples of adhesives 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 flame retardants may be added to the adhesive used. The thickness of the adhesive layer is, for example, 5 to 400 μm, preferably 10 to 150 μm. Furthermore, the first cover member 5 may be fixed to the outer surface 11A of the partition 11 by fastening material 6A, which is a separate component from the first cover member 5, such as a stapler or screws, and fixed to the insertion body 21 by fastening material 6B. Of course, the first cover member 5 may also be fixed to the partition 11 and the insertion body 21 by a combination of two or more of these methods.

[0037] The first cover member 5 is preferably a deformable sheet, as described above. The thickness of the first cover member 5 is not particularly limited, but it should be flexible and easily deformable, for example, 0.01 to 1 mm, preferably 0.05 to 0.5 mm.

[0038] (Thermally expandable resin composition) The following describes in more detail the heat-expandable resin composition used in fire-resistant materials such as fire-resistant layers. The heat-expandable resin composition contains a resin component and a heat-expandable material. By forming the heat-expandable member from a heat-expandable resin composition containing a resin component, the bending and deformation of the first cover member 5 becomes easier. Examples of thermally expandable materials include foaming agents that foam when heated, vermiculite, and thermally expandable layered inorganic materials such as thermally expandable graphite, with thermally expandable graphite being preferred. By using thermally expandable graphite, it expands appropriately when heated by a fire, and the mechanical strength of the expanded residue after expansion is excellent, making it easier to improve fire resistance. Note that the thermally expandable materials referred to here do not expand substantially through molding or other processes described later, and thermally expandable resin compositions maintain their thermal expandability in fire-resistant materials.

[0039] The expansion initiation temperature of a 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. Setting it below these lower limits prevents the thermally expandable material from expanding unintentionally due to heating other than fire. Setting it below the upper limit makes it easier to reliably expand the thermally expandable material due to heating from a fire. Furthermore, the expansion initiation temperature of a thermally expandable material can be measured by heating a predetermined amount (e.g., 100 mg) of the thermally expandable material at a constant heating rate (e.g., 10°C / min) and measuring the temperature at which the normal force begins to rise. The measuring device can be any device that allows for temperature control and measurement of stress in the normal direction; for example, a rheometer can be used. The thermal expansion ratio of the thermally expandable member is preferably 3 times or more, and preferably 10 times or more. The upper limit of the expansion ratio is not particularly limited, but for example, it is 70 times, preferably 50 times. If multiple fire-resistant material layers with different expansion ratios are laminated on the first cover member, the expansion ratio should be selected within the above range. Also, for example, the difference between the expansion ratio of the fire-resistant material layer furthest from the outer surface of the partition and the expansion ratio of the fire-resistant 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 material to an electric furnace, heating it at 600°C for 30 minutes, measuring the thickness of the test specimen, and then dividing it by (thickness of the test specimen after heating) / (thickness of the test specimen before heating).

[0040] The following describes in detail a thermally expandable resin composition when the thermally expandable material is thermally expandable graphite. Examples of resin components in a thermally expandable resin composition include thermoplastic resins, thermosetting resins, and elastomers. Examples of thermoplastic resins include polyvinyl chloride (PVC), chlorinated polyvinyl chloride resin (CPVC), fluororesins, polyphenylene ether, modified polyphenylene ether, polyphenylene sulfide, polycarbonate, polyetherimide, polyetheretherketone, polyarylate, polyamide, polyamideimide, polybutadiene, polyimide, acrylic resin, polyacetal, polyamide, polyethylene (PE) and polypropylene (PP), polyolefins such as ethylene vinyl acetate (EVA), ethylene-propylene-diene copolymer (EPDM), polyesters such as 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 curable resins include epoxy resins, phenolic resins, melamine resins, urea resins, unsaturated polyester resins, alkyd resins, polyurethanes, and thermosetting polyimides.

[0041] 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 of thermoplastic elastomers include 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 heat-expandable resin composition may be one type or a combination of two or more types.

[0042] Furthermore, the use of an elastomer as a resin component in the thermally expandable resin composition makes it easier to achieve tackiness. From the viewpoint of facilitating the development of tackiness, it is preferable that the elastomer contains a liquid elastomer. A liquid elastomer is an elastomer that becomes liquid at room temperature and pressure.

[0043] The heat-expandable resin composition may contain a plasticizer. Plasticizers are preferably used when the resin component is a thermoplastic resin such as polyvinyl chloride resin. Specific examples of plasticizers include phthalate ester plasticizers such as di-2-ethylhexyl phthalate (DOP), dibutyl phthalate (DBP), diheptyl phthalate (DHP), and diisodecyl phthalate (DIDP); fatty acid ester plasticizers such as adipate esters such as di-2-ethylhexyl adipate (DOA), diisobutyl adipate (DIBA), and dibutyl adipate (DBA), and adipate polyester; epoxidized ester plasticizers such as epoxidized soybean oil; trimellitate ester plasticizers such as tory 2-ethylhexyl trimellitate (TOTM) and triisononyl trimellitate (TINTM); phosphate ester plasticizers such as trimethyl phosphate (TMP) and triethyl phosphate (TEP); and process oils such as mineral oil. One or more types of plasticizers may be used. When a heat-expandable resin composition contains a plasticizer, the amount of plasticizer in the heat-expandable resin composition is, for example, in the range of 0.3 parts by mass to 150 parts by mass per 100 parts by mass of the resin component, preferably in the range of 10 parts by mass to 100 parts by mass. If the amount of plasticizer is above these lower limits, moldability tends to be good, and if it is below the upper limits, the molded article is given appropriate strength.

[0044] The total content of resin components and plasticizers is preferably 10% to 90% by mass, more preferably 25% to 80% by mass, and even more preferably 40% to 70% by mass, based on the total amount of the resin composition. Setting the content above these lower limits improves the moldability of the thermally expandable member. It also ensures flexibility, making bending and deformation easier. Furthermore, setting the content below the upper limits allows for the incorporation of sufficient amounts of components such as thermally expandable graphite and inorganic fillers. Note that the total content of resin components and plasticizers refers to the combined content of both resin components and plasticizers if both are present, and to the content of resin components alone if no plasticizer is present.

[0045] Thermally expandable graphite is a conventionally known substance, produced by treating powders of natural flake graphite, pyrolysis graphite, quiche graphite, etc., with inorganic acids such as concentrated sulfuric acid, nitric acid, and selenic acid, and strong oxidizing agents such as concentrated nitric acid, perchloric acid, perchlorate, permanganate, dichromate, and hydrogen peroxide to generate graphite intercalation compounds. The resulting thermally expandable graphite is a crystalline compound that maintains the layered structure of carbon. The thermally expandable graphite used in this invention may also be obtained by neutralizing thermally expandable graphite obtained by acid treatment with ammonia, aliphatic lower amines, alkali metal compounds, alkaline earth metal compounds, etc. Examples of aliphatic lower amines include monomethylamine, dimethylamine, trimethylamine, ethylamine, propylamine, and butylamine. Examples of alkali metal compounds and alkaline earth metal compounds include hydroxides, oxides, carbonates, sulfates, and organic acid salts of potassium, sodium, calcium, barium, magnesium, and other metals.

[0046] The particle size of the thermally expandable graphite is not particularly limited, but a range of 20 to 200 mesh is preferred. If the particle size is above the lower limit, the degree of expansion of the graphite tends to increase, resulting in good foaming properties. If the particle size is below the upper limit, the dispersibility when kneading with resin improves, and moldability is enhanced.

[0047] 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 per 100 parts by mass of the resin component. When the content of thermally expandable graphite is 3 parts by mass or more, good thermal expandability is achieved. When it is 300 parts by mass or less, good moldability is achieved, and the surface properties, mechanical properties, and flexibility of the sealing member are also good. Furthermore, by selecting the content of thermally expandable graphite within the above range, it becomes easier to adjust the expansion ratio to 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, and more preferably in the range of 15 parts by mass or more and 100 parts by mass or less.

[0048] The thermally expandable resin composition may further contain an inorganic filler. The inorganic filler is not particularly limited as long as it is an inorganic filler commonly used in thermally expandable resin compositions. Specifically, for example, silica, diatomaceous earth, alumina, zinc oxide, titanium oxide, calcium oxide, magnesium oxide, iron oxide, tin oxide, antimony oxide, ferrites, calcium hydroxide, magnesium hydroxide, aluminum hydroxide, calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate, barium carbonate, dohnite, hydrotalcite, calcium sulfate, barium sulfate, gypsum fiber, calcium silicate, talc, kaolinite, clay, myca, montmorillonite, bentonite, activated clay, ceviolite, imogolite, sericite, glass fiber, glass Examples include phosphates such as subsweezers, silica balloons, aluminum nitride, aluminum phosphite, aluminum hydrogen phosphate, aluminum phosphate, and ammonium dihydrogen phosphate, polyphosphates such as ammonium polyphosphate and aluminum polyphosphate, boron nitride, silicon nitride, carbon black, graphite, carbon fiber, carbon balloons, charcoal powder, various metal powders, potassium titanate, magnesium sulfate, lead zirconia titanate, aluminum borate, molybdenum sulfide, silicon carbide, stainless steel fibers, zinc borate, various magnetic powders, slag fibers, fly ash, and dewatered sludge. One or more types of inorganic fillers can be used. When an inorganic filler is included, the amount of 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.

[0049] The thermally expandable resin composition may contain known tackifiers. Including a tackifier makes it easier to impart tackiness to the thermally expandable member. Furthermore, the thermally expandable resin composition used in the present invention may contain, as necessary, additives commonly used in thermally expandable resin compositions, such as heat stabilizers, lubricants, processing aids, antioxidants, antistatic agents, pigments, crosslinking agents, and crosslinking accelerators, to the extent that they do not impair its physical properties. Among these, the use of processing aids is preferred.

[0050] A thermally expandable component can be manufactured, for example, as follows: First, a predetermined amount of resin components, a thermally expandable material, and other additives as needed 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 heat-expandable resin composition, diluted as needed, is applied to a substrate, a support such as a release sheet, and dried and cured as appropriate to form a fire-resistant layer (expandable material) on one surface of the support. Alternatively, the fire-resistant layer may be formed on one surface of the support by known methods such as extrusion molding. The fire-resistant layer formed on the release sheet can be peeled off to obtain a single layer of fire-resistant material. After peeling off the release sheet, it can be laminated onto another layer to obtain a multilayer fire-resistant layer. Alternatively, it may be laminated onto another layer while still laminated on the release sheet or another support.

[0051] (Putty composition) The following describes in more detail the putty composition used in fire-resistant materials such as fire-resistant layers. The putty composition contains a binder component and a filler. The binder component can be any resin component used in a heat-expandable resin composition, preferably an elastomer. More preferably, the binder component is a liquid elastomer, such as liquid polybutadiene rubber, liquid styrene-butadiene rubber, liquid chloroprene rubber, and liquid isoprene rubber. As fillers, inorganic fillers used in thermally expandable resin compositions can be used as appropriate. Among the inorganic fillers, preferred are metal hydroxides such as aluminum hydroxide, magnesium hydroxide, calcium hydroxide, talc and kaolinite, manganese hydroxide, iron hydroxide, and zinc hydroxide, phosphates, polyphosphates, polymeric inorganic polyphosphates, phosphate minerals and other phosphorus compounds, as well as carbonate compounds such as calcium carbonate, magnesium carbonate, zinc carbonate, strontium carbonate and barium carbonate, potassium carbonate, sodium carbonate, lithium carbonate, iron carbonate, and silver carbonate. Using these inorganic fillers makes it easier to impart fire resistance to the putty material. The putty composition may, if necessary, contain plasticizers, tackifiers, and other components, similar to the thermally expandable resin composition. However, the putty composition does not contain any thermally expandable materials.

[0052] The inorganic filler content in the putty composition is preferably in the range of 30 parts by mass or more and 500 parts by mass or less, more preferably in the range of 50 parts by mass or more and 400 parts by mass or less, and even more preferably in the range of 80 parts by mass or more and 250 parts by mass or less, per 100 parts by mass of the binder component. The putty material can be formed by the same method as the above-mentioned heat-expandable resin composition. In the above explanation, the putty composition was described using a resin component (organic material) as the binder component as described above, but any conventionally known material that can be used as a fire-resistant putty can be appropriately selected and used. For example, it is not necessary to use a resin component as the binder component, and a fire-resistant putty that does not contain organic material may also be used, for example, a fire-resistant putty made of clay.

[0053] The construction method for the partition penetration processing structure 10 in this embodiment includes the step of installing the first cover member 5 described above so as to close at least a portion of the gap 13E between the opening 13C of the partition penetration portion 15 provided in the partition portion 11 and the insertion body 21.

[0054] According to the configuration of this embodiment described above, the gap 13E inside the opening 13C of the compartment penetration 15 is sealed by the first cover member 5, and at least the first cover member 5 has a fire-resistant material layer. Therefore, the compartment penetration treatment structure 10 can be given appropriate fire resistance, and its construction is also easy. Furthermore, in this embodiment, since the fire-resistant structure is formed by the first cover member 5 without placing filler materials such as fire-resistant putty or rock wool inside the compartment penetration 15, variations due to the worker are eliminated.

[0055] Furthermore, in this embodiment, at least a portion of the first cover member 5 is exposed and visible from the outside. Also, if a fixing member is provided to secure the first cover member 5, it is preferable to position the fixing member in a location that is also visible from the outside. In addition, no members other than the insertion body 21 are provided inside the partition penetration 15. Therefore, it is easy to check whether the partition penetration treatment material has been installed according to the specifications by visual inspection or photography. This also reduces the likelihood of installation errors.

[0056] [Modification 1 of the first embodiment] In the partition penetration processing structure 10 shown in Figure 1, the first cover member 5 is shown having a specific shape consisting of a first cover portion 50 and a second cover portion 51. However, as shown in Figure 6, the shape of the first cover member 5 is not particularly limited and may be any shape. For example, as shown in Figure 6, the first cover member 5 is rectangular and has a slit 54 through which the insertion body 21 is inserted, with at least one of the slits 54 extending to the outer edge of the first cover member 5. The slit 54 is formed by a cut. The first cover member 5 allows the insertion body 21 to be inserted into the interior of the first cover member 5 through the slit 54 that extends to the outer edge. In this modified example, the first cover portion 5, with the insertion body 21 inserted into the interior of the first cover member 5, can be appropriately deformed so that a part of it is placed on the partition portion 11 and is installed so as to wrap around the insertion body 21. The first cover member 5 according to this modified example is also preferably fixed to the partition portion 11 and the insertion body 21 by fasteners 6A and 6B as described above.

[0057] Furthermore, the first cover member 5 may be arranged in a cylindrical shape. In this case, the cylindrical first cover member may be arranged by passing the insertion body 21 through its inner circumference, fixing one end in the axial direction to the partition 11 with a fastening member 6A, and wrapping the other end around the insertion body 21 and fixing it to the insertion body 21 with a fastening member 6B. In this case, the first cover member 5 may be arranged in a cylindrical shape by, for example, winding a sheet-like material into a cylindrical shape.

[0058] [Modification 2 of the first embodiment] In the partition penetration processing structure 10 shown in Figure 2, the first cover member 5 is shown installed in such a manner that it forms a gap 40 between the partition portion 11 and the insertion body 21. However, as shown in Figure 7, it may also be installed along the partition portion 11 without forming a gap 40. Such a first cover member 5 may or may not have a hole for passing the insertion body 21 through, in addition to the slit 54. Preferably, the hole is the same size as or smaller than the contour of the insertion body 21 (i.e., the inner edge of the hole coincides with or is inside the contour of the insertion body 21) so that no gap is formed between the insertion body 21 and the first cover member 5. Also, for example, if no hole is provided, or if a hole is provided but is smaller than the insertion body 21, it is preferable that the portion of the first cover member 5 surrounding the insertion body 21 is raised on the opposite side from the partition portion 11 when the insertion body 21 is passed through the first cover member 5.

[0059] [Second Embodiment] Next, a second embodiment of the present invention will be described in detail. The difference in the second embodiment from the first embodiment is that, as shown in Figure 8, it includes a second cover member 7 that covers the first cover member 5. The differences between the second embodiment and the first embodiment will be described below. Also, parts that are omitted from the description are the same as in the first embodiment. Furthermore, in the following description, the same reference numerals are used for members having the same configuration as in the first embodiment.

[0060] The second cover member 7 has a base material and a fire-resistant layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material. Preferably, the second cover member 7 has at least two layers of the base material and fire-resistant layer laminated together. If the second cover member 7 consists of a single layer, it is preferably the base material, and if it has at least two layers laminated together, it is preferable that the outermost layer on the side opposite to the partition 11 is the base material. By configuring the second cover member 7 as described above, the first cover member 5 located inside can be well protected, making it easier for the first cover member 5 to perform its function. In addition, the design of the second cover member 7 can be enhanced.

[0061] The second cover member 7 is sheet-like and deformable, allowing it to be easily fitted tightly to the insertion body 21 and easily cover the first cover member 5. The second cover member 7 can take various forms as long as it covers the first cover member 5, and can take the same form as the first cover member 5 described above. For example, the second cover member 7 is marked to indicate the installation positions of fasteners 6C and 6D, and can be fastened to the partition 11 by fastener 6C in the same way as fastener 6A, and fastened to the insertion body 21 by fastener 6D in the same way as fastener 6B.

[0062] The second cover member 7 is fixed to the partition 11 and the insertion body 21, and is installed so as to form a gap 41 between the partition 11 and the insertion body 21. The gap 41 between the partition 11 and the insertion body 21 allows the second cover member 7 to be fixed with a margin of safety against the axial movement of the insertion body 21. Because the second cover member 7 is fixed to the insertion body 21 with a margin of safety, even if the insertion body 21, which is positioned inside the second cover member 7, is moved axially after the second cover member 7 has been installed, the margin of safety of the second cover member 7 prevents the second cover member 7 from moving together with the insertion body 21. By preventing the second cover member 7 from moving together with the insertion body 21, it is possible to suppress the second cover member 7 from shifting away from the compartment penetration 15. In other words, with this configuration, the second cover member 7 can be maintained in the appropriate position within the compartment penetration 15, and the fire resistance of the compartment penetration 15 can be maintained. There is a gap 41 between the partition 11 and the insertion body 21, and the second cover member 7 can be fixed with a margin of error against the axial movement of the insertion body 21. Various configurations are possible. For example, the second cover member 7 may be made of a flexible or stretchable material so that at least a part of it can be bent or curved, or it may be fixed so that at least a part of the second cover member 7 has some slack relative to the insertion body 21.

[0063] The second cover member 7 forms a gap 41 between the partition 11 and the insertion body 21, and this gap 41 functions as an air layer between the first cover member 5 and the second cover member 7. The function of the gap 41 as an air layer between the first cover member 5 and the second cover member 7 improves the fire resistance performance of the compartment penetration treatment structure.

[0064] Furthermore, while the first cover member 5 is as described in the first embodiment above, it is also preferable that the outermost layer of the first cover member 5, located on the opposite side of the partition portion 11, be a fire-resistant material layer. In this embodiment, even if the outermost layer of the first cover member 5 is a fire-resistant material layer, the provision of the second cover member allows for appropriate protection of the outermost fire-resistant material layer. Therefore, preferred structures for the second cover member 15, the void 41, and the first cover member 5 include base material / air layer / fire-resistant material layer / base material, base material / air layer / fire-resistant material layer / base material / fire-resistant material layer, base material / fire-resistant material layer / air layer / fire-resistant material layer / base material, base material / fire-resistant material layer / air layer / fire-resistant material layer / base material, and base material / fire-resistant material layer / air layer / fire-resistant material layer / base material / fire-resistant material layer. In these structures, the fire-resistant layer may be formed from an expansive material or from a putty material.

[0065] According to the configuration of this embodiment described above, the gap 13E inside the opening 13C of the compartment penetration 15 is sealed by the first cover member 5 and the second cover member 7, and at least the first cover member 5 has a fire-resistant material. Therefore, the compartment penetration treatment structure 10 can be given appropriate fire resistance. Furthermore, as explained above, the partition penetration treatment structure 10 is constructed by preparing a first cover member 5 and a second cover member 7, and first installing the first cover member 5 to close the gap 13E between the opening 13C of the partition penetration 15 and the insertion body 21. Then, the second cover member 7 is fixed to the partition 11 and the insertion body 21 so as to cover the first cover member 5. Therefore, its construction is easy. Furthermore, in this embodiment, since the fire-resistant structure is formed by the first cover member 5 and the second cover member 7 without placing filler materials such as fire-resistant putty or rock wool inside the compartment penetration 15, variations due to the worker are eliminated.

[0066] Furthermore, in this embodiment, at least the second cover member 7 is exposed and visible from the outside. Also, if a fixing member is provided to secure the second cover member 7, it is preferable to position the fixing member in a location that is also visible from the outside. In addition, no members other than the insertion body 21 are provided inside the partition penetration 15. Therefore, it is easy to check whether the partition penetration treatment material has been installed according to the specifications by visual inspection or photography. This also reduces the likelihood of installation errors.

[0067] [Other embodiments] The present invention is not limited to the configurations of the first and second embodiments described above, and any improvements or modifications may be made as long as they do not depart from the technical concept of the present invention. For example, in each of the above embodiments, the partition penetration treatment material may have a member that is disposed inside the partition penetration portion 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 Figure 9. As the fire-resistant material, a block-shaped fire-resistant material 80 as shown in Figure 9 may be used, and the block-shaped fire-resistant material 80 may be connected to the first cover member 5. The manner of connection is not particularly limited, but for example, it may be laminated on one side of the first cover member 5, or it may be connected to the end face of the first cover member 5. As described above, the fire-resistant material 80 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.

[0068] Furthermore, although the partition 11 was described as a hollow wall with a hollow section 13 inside, it is not limited to a hollow wall and may be a wall without a hollow section, for example, made of a single wall material. Also, the partition 11 is not limited to the walls of a building, but may be the ceiling or floor of a building. Even in the case of a ceiling or floor, the partition may have a structure with a hollow section between two partition materials, or it may have a structure without a hollow section and may be made of a single partition material, for example.

[0069] Furthermore, in each of the above embodiments, it was assumed that partition penetration treatment materials of the same structure are provided at both openings 13C and 13D of the partition portion 11 (i.e., both sides of the partition portion 11). However, partition penetration treatment structures of different structures may be provided at each opening 13C and 13D. For example, the partition penetration treatment structure according to the first embodiment may be provided at one opening 13C, and the partition penetration treatment structure according to the second embodiment may be provided at the other opening 13D. Also, the partition penetration treatment material at opening 13D may be omitted.

[0070] In each of the above embodiments, the first cover member 5 can be configured to have a sound-absorbing layer (not shown) from the viewpoint of improving the sound absorption of the partition penetration treatment structure 10. The sound-absorbing layer can be made of materials such as glass wool, rock wool, soft polyurethane foam, ceramic fiber, cellulose fiber, and needle-punched mat. The thickness of the sound-absorbing layer is not particularly limited, but is, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm. Having a sound-absorbing layer with a thickness below these upper limits makes it easier to install the first cover member 5. Also, having a sound-absorbing layer with a thickness above these lower limits makes it easier to ensure sound absorption performance.

[0071] In each of the above embodiments, from the viewpoint of improving the sound insulation performance of the partition penetration processing structure 10, the first cover member 5 can be configured to have a sound insulation layer (not shown). The sound insulation layer can be made of asphalt sheets, olefin sheets, and iron-based soft sheets. Alternatively, the sound insulation layer can be made of a resin material highly filled with inorganic fillers such as calcium carbonate. Specifically, it is preferable that the resin composition contains 300 to 600 parts by mass of inorganic filler per 100 parts by mass of olefin resin, more preferably 350 to 550 parts by mass, and even more preferably 400 to 500 parts by mass. In this way, a resin material highly filled with inorganic fillers effectively exhibits a sound insulation effect due to its increased mass per unit volume. The thickness of the sound insulation layer is not particularly limited, but is, for example, 0.1 to 10 mm, preferably 0.5 to 5 mm. Having a sound insulation layer with a thickness below these upper limits makes it easier to install the first cover member 5. Also, having a sound insulation layer with a thickness above these lower limits makes it easier to ensure sound insulation performance.

[0072] When a sound-absorbing or sound-insulating layer is provided, it is preferable that the sound-absorbing or sound-insulating layer be adjacent to the base material, thereby allowing the sound-absorbing or sound-insulating layer to be supported by the base material. Furthermore, the sound-absorbing layer or sound-insulating layer may be provided on the second cover member, and in this case as well, it is preferable that the sound-absorbing layer or sound-insulating layer be adjacent to the base material. The sound-absorbing or sound-insulating layer may be provided in two or more layers on the first cover member, or in two or more layers on the second cover member, or on both the first and second cover members. [Explanation of symbols]

[0073] 5. First cover member 6A~6D Fastening material 7. Second cover member 10 Compartment penetration treatment structure 11 Partition section 12A, 12B Wall materials 13 Hollow part 13A,13B through hole 13C,13D opening 13E Gap 15 Compartment Penetration 21 Insertion body 22 String-like member 30A,...30Y,30Z Base material 31A,...31Y,31Z Fireproof material layer 32 slits 33 Adhesive layer 40 void 41 void 50. Cover Section 1 51. Second Cover Section 52 First Mark 53 Second Mark 54 slits 55 Adhesive layer 60 washers 80 Refractory materials

Claims

1. A partition penetration treatment structure that provides a fire-resistant structure for a partition penetration formed in the partition of a building, through which a long insertable body is inserted. The partition portion is provided with a first cover member that closes at least a portion of the gap between the opening of the partition penetration portion and the insertion body, The first cover member has at least a fire-resistant material layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material, and the base material and the fire-resistant material layer are laminated in at least two layers, forming a partition penetration treatment structure.

2. The partition penetration treatment structure according to claim 1, wherein the first cover member is formed by laminating the base material and the fire-resistant material layer alternately in at least three layers.

3. The partition penetration treatment structure according to claim 1 or 2, wherein the first cover member is formed by continuously laminating layers of the same type as the base material and the fire-resistant material layer.

4. The partition penetration treatment structure according to any one of claims 1 to 3, wherein the substrate having an adhesive base material or adhesive layer, or the fire-resistant material layer having an adhesive fire-resistant material layer or adhesive layer, is arranged in contact with the partition portion or the insertion body.

5. The partition penetration processing structure according to any one of claims 1 to 4, wherein the first cover member is fixed to the partition portion and the insertion body, and a gap is formed between the partition portion and the insertion body.

6. The partition penetration processing structure according to any one of claims 1 to 5, wherein the base material is arranged in the outermost layer on the opposite side from the partition portion.

7. The partition penetration processing structure according to any one of claims 1 to 6, wherein nothing other than the insertion body is provided inside the partition penetration portion.

8. The partition penetration treatment structure according to any one of claims 1 to 7, wherein the first cover member is fixed to the partition by at least one of the adhesive fire-resistant material layer or adhesive layer disposed on the inside and a fixing member installed from the outside.

9. The second cover member covers the first cover member, The partition penetration treatment structure according to any one of claims 1 to 8, wherein the second cover member has at least a base material and a fire-resistant material layer consisting of at least one of a fire-resistant putty material and a thermally expandable expansion material.

10. The partition penetration treatment structure according to claim 9, wherein the second cover member has at least two layers of the base material and the fire-resistant material layer laminated together.

11. The partition penetration treatment structure according to claim 9 or 10, wherein the second cover member is fixed to the partition and the insertion body by at least one of the following: the fire-resistant material layer or adhesive layer having adhesive properties arranged on the inside, a string-like member or adhesive tape wrapped around from the outside, and a fixing member installed from the outside.

12. The partition penetration treatment structure according to any one of claims 9 to 11, wherein there is a gap between the first cover member and the second cover member.

13. The partition penetration processing structure according to any one of claims 9 to 12, wherein nothing other than the first cover member is provided between the partition portion and the second cover member.

14. The partition penetration treatment structure according to any one of claims 1 to 13, wherein the partition penetration treatment material comprising the first cover member is provided on both sides of the partition portion.

15. The partition penetration treatment structure according to any one of claims 1 to 14, wherein the first cover member has a sound-absorbing layer.

16. The partition penetration treatment structure according to any one of claims 1 to 15, wherein the first cover member has a sound insulation layer.

17. The partition penetration treatment structure according to any one of claims 9 to 16, wherein the second cover member has a sound-absorbing layer.

18. The partition penetration treatment structure according to any one of claims 9 to 17, wherein the second cover member has a sound insulation layer.

19. A partition penetration treatment material used to make a partition penetration formed in the partition of a building, through which a long insertable body is inserted, a fire-resistant structure, The partition portion is provided with a first cover member that closes at least a portion of the gap between the opening of the partition penetration portion and the insertion body, The first cover member has at least a fire-resistant layer made of at least one of a fire-resistant putty material and a thermally expandable expansion material, and the base material and the fire-resistant layer are laminated in at least two layers, forming a partition penetration treatment material.

20. The partition penetration treatment material according to claim 19, wherein the first cover member is formed by laminating the base material and the fire-resistant material layer alternately in at least three layers.

21. A construction method for a partition penetration treatment structure in which a partition penetration formed in the partition of a building and through which a long insertable body is inserted is made of a fire-resistant structure, The process includes installing a first cover member that closes at least a portion of the gap between the opening of the partition penetration provided in the partition and the insertion body, A method for constructing a partition penetration treatment structure, wherein the first cover member has at least a fire-resistant material layer made of at least one of a fire-resistant putty material and a thermally expandable material, and the base material and the fire-resistant material layer are laminated in at least two layers.

22. The method for constructing a partition penetration treatment structure according to claim 21, wherein the first cover member is formed by laminating the base material and the fire-resistant material layer alternately in at least three layers.

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