Fireproof partition structure

Abstract

To provide a sealing body capable of preventing heat transfer to another space and inhibiting fire spread.SOLUTION: A fireproof partition structure 1 is installed in a partition penetration structure 2, where an elongated member 21 is inserted through a penetration hole 200 formed in a partition body 20 that partitions a space into multiple sections. The fireproof partition structure comprises: a thermally expandable material 103 that is expanded by heat; a holding member 100 that holds the thermally expandable material 103 around the elongated member 21. A sealing body 101 applied to the fireproof partition structure 1 is positioned on one or both sides, in the penetration direction of the elongated member 21, of the thermally expandable material 103 of the fireproof partition structure 1. The sealing body 101 is configured to allow the elongated member 21 to pass through while being in contact with an outer peripheral surface of the elongated member 21, and is configured to close the gap between the penetration hole 200 and the elongated member 21.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a shield, a fire prevention device, and a fire-resistant compartment structure that can prevent the spread of fire to a space partitioned by partitions such as walls and floors. [Background technology]

[0002] When installing long cylindrical objects such as pipes or cables through penetration holes in the partitions across multiple spaces separated by partitions such as walls, it is necessary to take fire prevention measures by filling the gaps between the penetration holes and the long objects with fire-resistant material to prevent a fire that breaks out in one space from spreading to the other space on either side of the partition.

[0003] A conventional fireproofing method is described in Patent Document 1. In this method, after inserting a plurality of elongated bodies into holes in a fireproofing compartment, a pair of cylinders formed in two and shorter than the length of the holes in the fireproofing compartment are arranged around the elongated bodies in a plurality of spaces partitioned by the fireproofing compartment. The pair of cylinders is then joined so as to surround the elongated bodies in the plurality of spaces, and a fireproofing treatment member is inserted into the holes until the flange portion comes into contact with the wall surface of the fireproofing compartment. According to this fireproofing treatment method, when a fire breaks out, the heat-expandable fireproofing sheet expands when exposed to the fire, and the fireproofing treatment member is arranged around the elongated bodies in a plurality of spaces partitioned by the fireproofing compartment. The fireproofing treatment member is composed of a pair of cylinders formed in two and shorter than the length of the holes in the fireproofing compartment, a heat-expandable fireproofing sheet attached to the inner surface of the cylinder, and a flange portion formed at one end of the cylinder. Next, the pair of cylinders is joined so as to surround the elongated bodies in the plurality of spaces, and a fireproofing treatment tool is inserted into the holes until the flange portion comes into contact with the wall surface of the fireproofing compartment. According to this fireproofing treatment method, when a fire breaks out, the heat-expandable fireproofing sheet expands when exposed to the fire, and the fireproofing treatment member is arranged in a manner that the fireproofing treatment member is inserted into the holes until the flange portion comes into contact with the wall surface of the fireproofing compartment. The gap between the plurality of elongated bodies and the holes can be blocked by stretching the elongated bodies. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-341649 Summary of the Invention [Problem to be solved by the invention]

[0005] However, if the heat of the fire is used to expand the heat-expandable fireproof sheet, gaps remain in the holes. Therefore, the pressure and temperature differences caused by the fire make it easier for heat to pass through the gaps and be transferred from one space to the other. This causes the temperature in the other space to rise, accelerating the spread of the fire.

[0006] Therefore, an object of the present invention is to provide a shield, a fire prevention device, and a fire-resistant compartment structure that can prevent heat from flowing out to another space and prevent the spread of fire. [Means for solving the problem]

[0007] The present invention is a blocking body applied to a fire-resistant compartment structure installed in a compartment penetration structure in which a long body is inserted into a through hole formed in a compartment that divides a space into multiple sections, the fire-resistant compartment structure comprising a thermal expansion material configured to expand due to heat and arranged to cover the long body, and a retaining member that holds the thermal expansion material around the long body, the blocking body being arranged on one and / or the other side of the thermal expansion material in the fire-resistant compartment structure in the penetration direction of the long body, configured to be penetrable by the long body, and configured to contact the outer peripheral surface of the long body and close the gap between the through hole and the long body.

[0008] The blocking body is brought into contact with the outer peripheral surface of the elongated body to block the gap between the through hole and the elongated body, thereby preventing a gap from being formed on the outer periphery of the elongated body, thereby preventing, for example, the flow of heat from one space to the other.

[0009] The present invention is also characterized in that the thermal expansion material is placed within a through hole, and the retaining member is applied to a fire-resistant compartment structure formed in a cylindrical shape that can penetrate the through hole, and is configured to block the opening on one and / or the other side of the cylindrical shape of the retaining member.

[0010] The blocking body is configured to close the opening on one and / or the other side of the cylindrical shape, and therefore can prevent heat from flowing out from the opening to the other space.

[0011] It is also applied to a fire-resistant compartment structure installed in a compartment penetration structure in which multiple elongated bodies are inserted into the through hole, and is characterized in that it is provided with a gap closing portion that fills the recess formed between the outer peripheries of adjacent elongated bodies among the multiple elongated bodies.

[0012] According to the blocking body, by filling the recess with the gap closing portion, the gap through which heat passes can be blocked more reliably.

[0013] The fire prevention device also includes the above-mentioned thermal expansion material, a holding member, and a shield, the thermal expansion material and the shield being held by the holding member.

[0014] Furthermore, the above-mentioned fire-resistant compartment structure may include the above-mentioned shielding body and a clamping member having an auxiliary hole through which the multiple elongated bodies pass and which is in contact with the outer peripheral surfaces of the multiple elongated bodies, the clamping member being arranged on one and / or the other side of the shielding body and being circumferentially divided by a cut line extending from the auxiliary hole toward the outer edge.

[0015] According to the above configuration, the circumferential ends formed by the division by the cut line overlap in the thickness direction, so that, for example, the pressing member is formed so as to expand from one space side to the other space side in the penetration direction of the elongated body. Therefore, even if the gap blocking portion appears due to the expansion of the thermal expansion material and the expansion and contraction of the piping, it can be hidden by the pressing member, and the pressing member can prevent the gap blocking portion from coming off. Effect of the Invention

[0016] As described above, according to the shielding body, fire prevention device, and fire-resistant compartment structure of the present invention, by blocking the gap between the through hole and the elongated body, it is possible to prevent heat from leaking into the other space and prevent the spread of fire. [Brief description of the drawings]

[0017] [Figure 1] 1 is a perspective view of a fire-resistant compartment structure in which a shield according to one embodiment of the present invention is used; [Diagram 2] FIG. 2 is a perspective view of the fire prevention device according to the embodiment. [Diagram 3] FIG. 2 is a perspective view of a holding member of the fire prevention device. [Figure 4] 1A is a front view of the shielding body of the fire prevention device, and FIG. 1B is a plan view of the thermal expansion material. [Diagram 5] FIG. 11 is a diagram showing an insertion process of the fire prevention device arrangement process according to the embodiment. [Figure 6] FIG. 11 is a diagram showing a thermal expansion material pushing step of the fire prevention device arrangement step according to the embodiment. [Figure 7] FIG. 11 is a diagram showing a gap closing portion pushing step of the fire prevention device arranging step according to the embodiment. [Figure 8] 11A to 11C are diagrams showing a long body winding step according to the embodiment; [Figure 9] 11 is a cross-sectional view of a plurality of elongated bodies around which the elongated body winding section according to the embodiment is constrained and wound. FIG. [Figure 10] FIG. 11 is a front view of a pressing member according to another embodiment. [Figure 11] FIG. 11 is a perspective view of a fire-resistant compartment structure according to another embodiment. [Figure 12] FIG. 11 is a front view of a pressing member according to another embodiment. [Figure 13a] FIG. 11 is a front view of a pressing member according to another embodiment, showing a state in which circumferential ends overlap each other. [Figure 13b] FIG. 11 is a right side view of a pressing member according to another embodiment, showing a state in which circumferential ends overlap each other. [Figure 13c] 13b shows a cross-sectional view of a pressing member according to another embodiment shown in FIG. 13a. [Figure 14] FIG. 13 is a perspective view of a fire prevention structure to which a pressing member according to another embodiment is applied. [Figure 15] 13 is a cross-sectional view of a fire prevention structure to which a pressing member according to another embodiment is applied. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] The present invention will be described below by taking up one embodiment. Fig. 1 shows a fire-resistant compartment structure 1 of this embodiment. The fire-resistant compartment structure 1 of this embodiment is installed in a compartment penetration structure 2 in which a plurality of elongated bodies 21 including at least one covered pipe 211, the outer periphery of which is covered with a covering material 212, are inserted into a penetration hole 200 formed in a partition body 20 that divides the space inside a building into a plurality of spaces. In the following, for convenience, of the spaces divided by the partition body 20, the space shown on the left side of Fig. 1 will be referred to as "one space" and the space shown on the right side of Fig. 1 will be referred to as "the other space".

[0019] In this embodiment, the compartment penetration structure 2 is configured by inserting a plurality of elongated bodies 21 into through holes 200 formed so as to penetrate the partition body 20 in the thickness direction. The partition body 20 in this embodiment is a wall that divides the space inside a building into one space and another space. The partition body 20 is erected so as to follow the vertical direction inside the building, and divides the space horizontally into a plurality of spaces (two in this embodiment). The partition body 20 as a wall corresponds to a solid wall or a hollow wall formed of reinforced concrete or the like. In this embodiment, the description will be made on the assumption that the partition body 20 is a solid wall.

[0020] In this embodiment, the partition 20 is formed with a through hole 200 that penetrates from one side to the other in a round shape. The through hole 200 in this embodiment extends straight in the thickness direction of the partition 20 and is formed so as to penetrate one space and the other space partitioned by the partition 20. A plurality of elongated bodies 21 (four in this embodiment) including two of the covering pipes 211 are inserted into the through hole 200, and the plurality of elongated bodies 21 extend across one space and the other space partitioned by the partition 20.

[0021] The covered pipe 211 is composed of a pipe 213 as the long body 21 and a covering material 212 covering the outer periphery of the pipe 213. The pipe 213 is, for example, a copper pipe through which a fluid (gas or liquid) such as a refrigerant flows. The covering material 212 is a resin foam having properties of protecting the pipe 213, insulating heat, and insulating sound, and further having a property of expanding due to heat. An example of the covering material 212 is a thermal insulation material that covers the outer periphery of a pipe through which a refrigerant passes and keeps the pipe warm. The covering material 212 in this embodiment is a resin foam made of polyethylene foam that expands due to heat and increases in volume.

[0022] In this embodiment, as the elongated bodies 21 other than the coated pipe 211, an electric wiring 21 and a polyvinyl chloride pipe 21 larger than the electric wiring are inserted through the through hole 200. Furthermore, in this embodiment, each elongated body 21 is formed in a cylindrical shape, and multiple elongated bodies 21 are inserted into the through hole 200 with the outer circumferential surfaces of the elongated bodies 21 in contact with each other. Therefore, a gap space 210 is formed between the outer peripheries of adjacent elongated bodies 21. This gap space 210 is composed of a central recess 210a formed approximately in the center of the multiple elongated bodies 21 and recesses 210b formed on the outer peripheries of the multiple elongated bodies 21.

[0023] The fireproof compartment structure 1 is installed in the compartment penetration structure 2 as shown in Fig. 1. The fireproof compartment structure 1 includes a fireproofing device 10 attached to the compartment penetration structure 2, and a long body winding section 11 configured to wind a plurality of long bodies 21 in a belt shape. The fireproofing device 10 of this embodiment is inserted into the through hole 200 in a state where it is wound around the plurality of long bodies 21 as shown in Fig. 1. The fireproofing device 10 is disposed over the entire area of ​​the through hole 200. The fireproofing device 10 of this embodiment further includes a holding member 100, a shielding body 101, and a thermal expansion material 103.

[0024] FIG. 2 shows the fire prevention device 10 before being attached to the compartment penetration structure 2. The fire prevention device 10 is formed in a cylindrical shape so as to cover the entire circumference of the through hole 200 and the entire area in the penetration direction, and is configured so that a plurality of long bodies are inserted inside. In the fire prevention device 10, the thermal expansion material 103 is arranged inwardly along the inner circumferential surface of the holding member 100. The thermal expansion material 103 also protrudes in the axial direction from the flange portion 1001 of the holding member 100. In the shielding body 101 arranged in the circumferential direction of the holding member 100 along the bottom surface of the flange portion 1001, as shown in FIG. 2, the gap blocking portion 101e extending in the radial direction is bent along the outer circumferential surface of the thermal expansion material 103 and protrudes in the axial direction from the flange portion 1001. In other words, in the fire prevention device 10 of this embodiment, before being attached to the compartment penetration structure 2, the thermal expansion material 103 and the shielding body 101 protrude in the axial direction from the flange portion 1001 of the holding member 100, and the flange portion 1001 (holding member 100), the shielding body 101, and the thermal expansion material 103 are arranged in that order from the radially outer side to the radially inner side.

[0025] FIG. 3 shows the holding member 100 of this embodiment. The holding member 100 holds the thermal expansion material 103 around the elongated body 21. As shown in FIG. 1, the holding member 100 of this embodiment is configured in a cylindrical shape that can be inserted into the through hole 200. In addition, the holding member 100 of this embodiment is formed in a C-shaped cylindrical shape with a part of the circumferential direction cut open in the axial direction in order to correspond to the circular through hole 200. The axial length of the holding member 100 is approximately the same as the length of the through hole 200 in the penetrating direction, and the circumferential length is formed to be smaller than the length of the inner circumferential surface of the through hole 200. The diameter of this holding member 100 can be reduced by bringing the circumferential ends 1000e (a pair of cut open ends) closer to each other. This allows the outer periphery of the fire prevention device 10 to be deformed according to the size of the through hole 200. In this embodiment, since the outer diameter of the holding member 100 before being reduced is substantially the same as the inner circumference of the through hole 200, a case will be described in which the holding member 100 is not reduced in diameter. Furthermore, a thermal expansion material 103 and a shield 101, which will be described later, are attached to this holding member 100. The holding member 100 of this embodiment includes a cylindrical sleeve main body 1000 and a flange portion 1001 protruding radially outward from the sleeve main body 1000.

[0026] The sleeve main body 1000 is a part that becomes the main body of the holding member 100 that fits along the inner surface of the through hole 200 when the holding member 100 is inserted into the through hole 200. The sleeve main body 1000 of this embodiment is formed in a C-shaped tube with a circumferential portion cut open along the axial direction. Therefore, a pair of circumferential end portions 1000e are defined in the cut open portion. The sleeve main body 1000 also includes an inner protrusion 1000d that supports the thermal expansion material 103 in the axial direction, a thermal expansion material mounting portion 1000c that mounts the thermal expansion material 103 so as to fit it along the inner circumferential surface of the holding member 100, and a slit portion 1000a for mounting the shield 101.

[0027] The inner protrusion 1000d is formed at one end in the axial direction of the sleeve body 1000. This inner protrusion 1000d protrudes in the radial direction of the C-shaped cylindrical sleeve body 1000. As shown in FIG. 2, this inner protrusion 1000d can receive and support the thermal expansion material 103 at the end in the axial direction when the thermal expansion material 103 is arranged overlapping the inner peripheral surface of the holding member 100. In addition, this inner protrusion 1000d has a predetermined circumferential width, and is formed in a trapezoid shape in which the circumferential width narrows as it protrudes in the radial inward direction. And, the end in the radial inward direction of the inner protrusion 1000d is bent in the axial direction. In this embodiment, four inner protrusions 1000d are arranged at intervals in the circumferential direction. In addition, the distance between the inner protrusions 1000d in the circumferential direction is approximately the same as the size in the circumferential direction of the through-hole portion 1000b described later.

[0028] The thermal expansion material mounting portion 1000c is for arranging and locking the thermal expansion material 103 along the inner circumferential surface of the holding member 100. The thermal expansion material mounting portion 1000c of this embodiment includes a bifurcated locking claw 1000cb inserted into the insertion hole 103a of the thermal expansion material 103, and a locking portion 1000ca that attaches the thermal expansion material 103 by engaging with the locking claw 1000cb. The locking portion 1000ca protruding radially inward from the sleeve main body portion 1000 is bent toward the locking claw 1000cb, and the locking claw 1000cb is inserted into the hole of the locking portion 1000ca to form the thermal expansion material mounting portion 1000c. In this embodiment, three thermal expansion material mounting portions 1000c are arranged in the circumferential direction, and the inner protruding portion 1000d is arranged between the thermal expansion material mounting portions 1000c in the circumferential direction. Furthermore, in the sleeve body 1000 of this embodiment, the thickness is reduced at the location where the thermal expansion material mounting portion 1000c is formed.

[0029] As shown in Fig. 3, the slit portion 1000a extends along the circumferential direction of the sleeve main body 1000 and penetrates the sleeve main body 1000 in the thickness direction. The slit portion 1000a is used when attaching a blocking body 101 (described later) to the holding member 100. The slit portion 1000a of this embodiment has a substantially rectangular shape in which the circumferential direction is longer than the axial direction in the sleeve main body 1000, and three slit portions 1000a are arranged in the circumferential direction of the sleeve main body 1000. Furthermore, the edge of the slit portion 1000a is defined by the sleeve main body 1000 and a flange portion 1001 (described later). Therefore, the slit portion 1000a of this embodiment is arranged on the other end side in the axial direction of the sleeve main body 1000 as shown in Fig. 3.

[0030] In the sleeve body 1000 of this embodiment, a through-hole 1000b is formed penetrating in the thickness direction. As shown in Fig. 3, three through-holes 1000b are formed in the circumferential direction of the sleeve body 1000. Each through-hole 1000b is formed in a trapezoidal shape whose width increases from the axial end on the side where a flange 1001 (described later) is formed toward the opposite end.

[0031] A flange portion 1001 protruding in the radial outward direction is formed at the other end of the sleeve body 1000 in the axial direction. This flange portion 1001 abuts against the outer surface of the partition body 20 when the fire prevention device 10 is inserted into the through hole 200. That is, the sleeve body 1000 is inserted into the through hole 200, and the flange portion 1001 abuts against the opening edge of the through hole 200 on the outer surface of the partition body 20, and the holding member 100 is installed in the through hole 200. The flange portion 1001 of this embodiment is formed in a plate shape provided on the entire circumference in a state of extending radially outward from the sleeve body 1000. In addition, in this embodiment, since the sleeve body 1000 is formed in a C-shaped cylindrical shape so as to follow the inner surface of the circular through hole 200, the flange portion 1001 is formed in a C-shaped ring shape cut at the same position as the cut position of the sleeve body 1000. The flange portion 1001 is formed with screw holes 1001a used when fixing the fire prevention device 10 to the partition body 20, cutout portions 1001b cut radially inward from the outer periphery of the flange portion 1001, and fixing bracket attachment portions 1001c for attaching fixing brackets (not shown). The screw holes 1001a in this embodiment are formed at locations where the outer periphery of the flange portion 1001 protrudes radially outward. Furthermore, multiple cutout portions 1001b (five in this embodiment) are arranged in the circumferential direction of the flange portion 1001, and some of them are arranged in the same positions as the fixing bracket attachment portions 1001c.

[0032] In addition, a recessed portion 1001d recessed in the radially outward direction is formed on the inner periphery of the flange portion 1001 in this embodiment. This recessed portion 1001d is formed in a portion of the flange portion 1001 that defines the slit portion 1000a. The recessed portion 1001d functions to allow the gap closing portion 101e of the shielding body 101 to expand in the radially outward direction from the fire prevention device 10 in the fire prevention device 10 before it is attached to the compartment penetration structure 2, as shown in FIG.

[0033] 4(a) shows a plan view of the shield 101 of this embodiment. The shield 101 of this embodiment is formed in a substantially circular sheet shape with a screw fastening portion 101f formed on the outer edge, and a circular auxiliary hole 101a for inserting the long body 21 is formed in the center. Also, the shield 101 includes a cut line portion 101b extending from the auxiliary hole 101a toward the outer edge of the shield 101, and a dividing line portion 101c dividing the circular shield 101 in the radial direction. The cut line portion 101b is formed so as to cut the shield 101 in the radial direction and thickness direction. Also, the cut lines 101b of this embodiment are arranged radially such that the intervals between the cut lines 101b become larger from the auxiliary hole 101a side toward the outer edge side. In this embodiment, the first incision line portion 101ba, which has a long incision length from the auxiliary hole 101a to the outer edge, and the second incision line portion 101bb, which has a shorter incision length than the first incision line portion 101ba, are alternately arranged in the circumferential direction. Furthermore, the division line portion 101c is arranged between the second incision line portions 101bb, as shown in FIG. 4(a).

[0034] In this embodiment, the gap between the cut lines 101b in the circumferential direction of the blocking body 101 or between the dividing line 101c and the cut line 101b is defined as a gap closing portion 101e. In the blocking body 101 of this embodiment, the gap closing portion 101e is extended in the radial inward direction and is arranged in a plurality of rows so as to cover the entire circumference in the circumferential direction, and the first cut line portion 101ba and the second cut line portion 101bb are arranged alternately. Therefore, the gap between the first cut line portion 101ba or the dividing line portion 101c and the second cut line portion 101bb is defined as a small gap closing portion 101eb, and the gap between the first cut line portions 101ba or between the dividing line portion 101c and the first cut line portion 101ba is defined as a large gap closing portion 101ea. The gap closing portion 101e of this embodiment is tapered so as to become narrower as it approaches the center position of the blocking body 101.

[0035] The shield 101 of this embodiment has an attachment hole 101d for attachment to the holding member 100. The attachment hole 101d is formed from the outer edge of the shield 101 toward the center. In this embodiment, four attachment holes 101d are arranged in the circumferential direction. Specifically, the shield 101 has a first attachment hole 101da for attachment to the circumferential end 1000e of the sleeve body 1000, and a second attachment hole 101db for attaching the sleeve body 1000 between the two slits 1000a. Two first attachment holes 101da are arranged on the upper side of FIG. 4(a) so as to sandwich the dividing line 101c in the circumferential direction, and two second attachment holes 101db are arranged on the lower side. The first attachment hole 101da is formed by a cut line extending from the outer edge of the shield 101 toward the center and a cutout in the circumferential direction from the end of the cut line on the center side. On the other hand, the second mounting hole 101db is cut inward from the outer edge of the blocking body 101 in a T-shape. In this embodiment, slit insertion portions 101g to be inserted into the slit portions 1000a of the sleeve main body 1000 are defined between the first mounting hole 101da and the second mounting hole 101db and between the two second mounting holes 101db. In this embodiment, the slit insertion portions 101g are inserted into the slit portions 1000a, the gaps between the slit portions 1000a are inserted into the second mounting holes 101db, and the circumferential end portions 1000e of the sleeve main body 1000 are inserted into the first mounting hole 101da, so that the dividing line portions 101c are disposed between the circumferential end portions 1000e of the sleeve main body 1000, as shown in FIG. 2, and the blocking body 101 is attached to the holding member 100. In this embodiment, the blocking body 101 attached to the holding member 100 is disposed on the bottom side of the flange portion 1001 (the surface side facing the outer surface of the partition body 20) as shown in Fig. 2. Here, the thickness of the blocking body 101 in this embodiment is formed to be shorter than the length of the slit portion 1000a in the axial direction. Therefore, the slit insertion portion 101g can be easily inserted into the slit portion 1000a. After being attached to the holding member 100, the blocking body 101 is allowed to move in the axial direction of the holding member 100.Furthermore, when the shield 101 is disposed on the bottom side of the flange portion 1001, the screw fastening portion 101f is disposed so as to overlap with the screw fastening hole 1001a of the flange portion 1001. Therefore, the holding member 100 and the shield 101 can be fixed to the partition body 20 with a screw. The shield 101 of this embodiment has at least one of thermal expansion properties (a property in which the volume increases due to heat), fire resistance (a property in which the shield 101 is resistant to fire and difficult to burn), and heat insulation properties (a property in which the heat is not easily transmitted).

[0036] The thermal expansion material 103 of this embodiment expands due to the heat of fire and fills the gap between the inner surface of the through hole 200 and the outer circumferential surface of the plurality of elongated bodies 21. Specifically, the thermal expansion material 103 of this embodiment is composed of a fireproof material 1031 having a property of expanding due to heat, and a bag 1030 that seals the fireproof material 1031 and has flexibility. The fireproof material 1031 has fire resistance (a property of being resistant to fire and difficult to burn), thermal expansion (a property of increasing in volume due to heat), and thermosetting (a property of being hardened by heat). Furthermore, the fireproof material 1031 of this embodiment is in a paste form. Therefore, as shown in FIG. 2, the bag 1030 in which the fireproof material 1031 is sealed can be arranged along the inner circumferential surface of the holding member 100 curved into a C-shaped cylinder.

[0037] The bag 1030 has a sealed periphery with the fireproof material 1031 stored therein. The bag 1030 of this embodiment is formed in a rectangular shape, with the long side being longer than the inner circumference of the holding member 100. The short side of the bag 1030 is longer than the axial length of the holding member 100. Furthermore, the long side of the sealed periphery has insertion holes 103a formed at predetermined intervals. Specifically, the bag 1030 of this embodiment has three insertion holes 103a formed therein, which are spaced apart near one short side of the rectangular bag 1030. In this embodiment, the interval is the same as the interval between the thermal expansion material mounting parts 1000c of the sleeve main body 1000. Therefore, when the thermal expansion material 103 is fixed to the holding member 100, the insertion holes 103a and the thermal expansion material mounting parts 1000c are used for attachment. Specifically, after folding the long side on which the insertion hole 103a is formed toward the inner surface of the bag 1030, one of the short sides is aligned with the circumferential end 1000e of the sleeve main body 1000, and while inserting the locking claw 1000cb into the insertion hole 103a, the thermal expansion material 103 is positioned along the inner surface of the sleeve main body 1000, the locking portion 1000ca is bent toward the locking claw 1000cb, and the locking claw 1000cb is engaged with the hole in the locking portion 1000ca to perform the installation.

[0038] As shown in FIG. 1, the long body winding part 11 of this embodiment is disposed on one side of the fire prevention device 10 in the penetration direction of the through hole 200, and winds the outer periphery of the multiple long bodies 21. The long body winding part 11 is formed in a band shape and is formed longer than the outer periphery of the multiple long bodies 21 so as to be wound around the outer periphery of the multiple long bodies 21. In addition, an adhesive material is applied to the short side of the surface of the long body winding part 11 of this embodiment that contacts the outer periphery of the multiple long bodies 21. Therefore, when the long body winding part 11 is wound around the multiple long bodies 21, the long body winding part 11 can be fixed to the outer periphery of the multiple long bodies 21 by the adhesive material. The adhesive material can be provided on the entire surface of the surface that contacts the outer periphery of the multiple long bodies 21, or on a part of the surface.

[0039] The above is a description of the fireproof compartment structure 1 of this embodiment. Next, a method for constructing the fireproof compartment structure 1 of this embodiment will be described. When constructing the fireproof compartment structure 1 of this embodiment, it is necessary to perform a fire prevention device arrangement step and a long body winding step.

[0040] FIG. 5 shows an insertion step of the fire prevention device arrangement step. In this insertion step, after attaching the fire prevention device 10 to the outer periphery of the plurality of elongated bodies 21 extending to the plurality of spaces through the through hole 200 in one space, the fire prevention device 10 is inserted into the through hole 200. At this time, the circumferential ends 1000e of the sleeve main body 1000 are spread apart, and the overlapping state of both ends of the thermal expansion material 103 in the circumferential direction is eliminated. As a result, the dividing line portion 101c of the shielding body 101 arranged between the circumferential ends 1000e is spread apart in the circumferential direction, and the fire prevention device 10 can be attached to the outer periphery of the plurality of elongated bodies 21 as shown by the two-dot chain line in FIG. 5. Here, in this embodiment, the shielding body 101 is arranged away from the bottom surface of the flange portion 1001 as shown in FIG. 5. In this embodiment, the fire prevention device 10 is arranged in one space so that the end opposite to the end where the flange portion 1001 of the sleeve main body 1000 is formed is located on the through hole 200 side.

[0041] After the fire prevention device 10 is attached along the outer circumference of the multiple elongated bodies 21, the fire prevention device 10 is slid along the elongated bodies 21 toward the other space side, and the fire prevention device 10 is pushed into the through hole 200 until the blocking body 101 overlapping with the bottom surface of the flange portion 1001 abuts against the outer surface of the partition body 20. After the blocking body 101 abuts against the outer surface of the partition body 20, the flange portion 1001 is moved toward the through hole 200, filling the gap between the flange portion 1001 and the blocking body 101, and the blocking body 101 is sandwiched between the outer surface of the partition body 20 and the bottom surface of the flange portion 1001. Then, screws are inserted into the screw fastening portion 101f and the screw fastening hole 1001a (not shown in FIG. 5) to fix the fire prevention device 10 to the partition body 20.

[0042] FIG. 6 shows the thermal expansion material pushing step of the fire prevention device arrangement step. In this thermal expansion material pushing step, the thermal expansion material 103, which is longer than the axial length of the holding member 100 and protrudes from the flange portion 1001 in the axial direction, is bent toward the through hole 200 and pushed into the through hole 200. At this time, the thermal expansion material 103 shown by the two-dot chain line in FIG. 6 is bent toward the elongated body 21 as shown by the arrow in FIG. 6. Then, the thermal expansion material 103 is pushed into the through hole 200 so as to fill the gap between the thermal expansion material 103 and the multiple elongated bodies 21. Also, as shown in FIG. 6, when the thermal expansion material 103 is pushed into the through hole 200, the thermal expansion material 103 is pushed so as to be positioned closer to the through hole 200 than the shielding body 101. This allows the thermal expansion material 103 to be stored in the through hole 200. Furthermore, by storing the thermal expansion material 103 in the through hole 200, the gap closing portion 101e that was bent along the outer circumferential surface of the thermal expansion material 103 is aligned along the outer periphery of the elongated body 21.

[0043] FIG. 7 shows a gap blocking portion pushing step of the fire prevention device arrangement step. In this gap blocking portion pushing step, the gap blocking portion 101e protruding along the outer periphery of the plurality of elongated bodies 21 is pushed into the through hole 200. Here, the plurality of elongated bodies 21 of this embodiment are inserted into the through hole 200 with the outer peripheries of the elongated bodies 21 in contact with each other. Therefore, as shown in FIG. 9, a recess 210b is formed as a gap space 210 between the elongated bodies 21. Therefore, in the gap blocking portion pushing step, the gap blocking portion 101e is pushed into the through hole 200 so as to fill the recess 210b. Specifically, the gap blocking portion 101e is bent toward the inside of the through hole 200, then folded back toward the flange portion 1001 side, and the gap blocking portion 101e is bent toward the inside of the through hole 200 again, pushed between the thermal expansion material 103 and the elongated body 21, and inserted into the through hole 200. Here, in this embodiment, the gap closing portion 101e includes a large gap closing portion 101ea and a small gap closing portion 101eb, and the large gap closing portion 101ea largely closes the recess 210b, and the small gap closing portion 101eb closes the recess 210b that cannot be completely closed by the large gap closing portion 101ea. As shown in FIG. 7, the gap closing portion 101e is disposed on the side of the plurality of elongated bodies 21 relative to the thermal expansion material 103. This concludes the description of the fire prevention device arrangement process. Next, the elongated body winding process will be described.

[0044] In the long body winding step, the long body winding part 11 is used to bind the multiple long bodies 21 in a bundle shape in a region from one space to the other space of the fire prevention device 10 in the penetration direction of the through hole 200. In this embodiment, after the fire prevention device placement step, the long body winding part 11 is placed on the multiple long bodies 21 on the one space side of the fire prevention device 10, and the long body winding part 11 is wound around the multiple long bodies 21 near the flange part 1001 of the fire prevention device 10 inserted into the through hole 200 as shown in FIG. In addition, since the long body winding part 11 of this embodiment has an adhesive member on the short side of the surface that contacts the outer circumferential surface of the multiple long bodies 21, when winding the long body winding part 11, one short side of the long body winding part 11 is attached to the outer circumferential surface of the long body 21 using the adhesive member of the long body winding part 11, and the long body winding part 11 is wound around the outer periphery of the multiple long bodies 21, and then the adhesive member of the other short side is attached to the outer surface of the long body winding part 11, and the long body winding part 11 is fixed to the multiple long bodies 21 as shown in FIG. 9. The long body 21 is bound by the long body winding part 11 with an appropriate tightening force so that the covering material 212 of the covered pipe 211 does not expand at the bound portion due to the heat of a fire. In this manner, the fireproof compartment structure 1 shown in FIG. 1 is formed.

[0045] As described above, according to the fireproof compartment structure 1 and the construction method thereof of the present embodiment, the long body winding part 11 binds the multiple long bodies 21 in a bundle in the region from a predetermined region on one space side of the fire prevention device 10 to a predetermined region on the other space side in the penetration direction, thereby restricting the radially outward expansion of the covering material 212, so that the covering material 212 expands to block the gaps between the long bodies 21 due to the heat of the fire. Therefore, it is possible to block the heat passage between the bundled long bodies 21. Specifically, in this embodiment, the long body winding part 11 is wound around the multiple long bodies 21 in one space and near the fire prevention device 10 inserted into the through hole 200. Therefore, when a fire breaks out in the other space, the covering material 212, which expands due to the heat flowing from the other space through the through hole 200 to the one space, expands to block the gap space 210 (recess 210b, central recess 210a) shown in FIG. 9. In this embodiment, the plurality of elongated bodies 21 are wound by the elongated body winding section 11, so that the covering material 212 is restricted from expanding the plurality of elongated bodies 21 in the radially outward direction, and the covering material 212 expands in the radially inward direction of the plurality of elongated bodies 21, thereby filling the gap space 210 and preventing heat from flowing to the adjacent space.

[0046] Furthermore, according to the fire-resistant compartment structure 1, the long body wound part 11 is disposed on one space side of the thermal expansion material 103, so that it is possible to prevent the expansion of the thermal expansion material 103 from being hindered by the long body wound part 11. Specifically, since the long body wound part 11 is disposed in one space in the through hole direction of the through hole 200, when the thermal expansion material 103 in the through hole 200 expands due to the heat of a fire, the thermal expansion material 103 can fill the through hole 200 regardless of whether the long body wound part 11 is wound around the long body 21 or not.

[0047] In addition, since the shield 101 of this embodiment is disposed on one space side of the fire prevention device 10, it is possible to prevent heat from flowing out from the opening of the fire prevention device 10 to one or the other space. Specifically, since the shield 101 is disposed so as to overlap with the bottom surface of the flange portion 1001, it is possible to prevent heat from flowing out from the opening of the fire prevention device 10 to one or the other space.

[0048] In the fire-resistant compartment structure 1 of the present embodiment, the gap closing portion 101e is inserted into the through hole 200 so as to fill the recess 210b. Therefore, the gap (recess 210b) between the elongated bodies 21 in the through hole 200 can be blocked. This makes it possible to prevent the fire from spreading to one of the spaces.

[0049] In this embodiment, the fire prevention device 10 is pushed into the through hole 200 until the blocking body 101 overlapping with the bottom surface of the flange portion 1001 hits the outer surface of the partition body 20, and the blocking body 101 is sandwiched between the bottom surface of the flange portion 1001 and the outer surface of the partition body 20. Therefore, the blocking body 101 (gap closing portion 101e) is prevented from moving to one space side, and the gap space 210 between the elongated bodies 21 can be reliably kept closed.

[0050] Furthermore, the gap blocking portion 101e is arranged along the circumferential direction of the cylindrical holding member 100 by inserting the slit insertion portion 101g into the slit portion 1000a of the holding member 100. This makes it possible to prevent the blocking body 101 from rotating in the circumferential direction relative to the holding member 100. Therefore, after the gap blocking portion 101e is inserted into the gap space (recess 210b) between the elongated bodies 21, the blocking body 101 rotates in the circumferential direction, making it possible to prevent the gap blocking portion 101e from colliding with the outer circumferential surface of the elongated body 21 and coming out of the recess 210b.

[0051] Furthermore, in this embodiment, the multiple cut lines 101b extending from the center to the outer edge of the shield 101 are formed radially so that the distance in the circumferential direction increases toward the outer edge, and therefore the gap blockage portion 101e defined by the multiple cut lines has a tapered shape that narrows toward the center position of the shield 101. This makes it easy to insert the gap blockage portion 101e into the recess 210b.

[0052] Next, a fire-resistant compartment structure 1 according to another embodiment will be described with reference to Fig. 10 and Fig. 11. In the fire-resistant compartment structure 1 according to the other embodiment, the same components as those in the above-mentioned embodiment will be denoted by the same reference numerals, and the description thereof will be omitted.

[0053] The fireproof compartment structure 1 of the other embodiment includes a pressing member 102 in addition to the fireproof device 10 and the long body winding part 11 described in the first embodiment. In the fireproof compartment structure 1 of the other embodiment, as shown in Fig. 11, the pressing member 102 is attached to the front of the fireproof device 10 inserted into the through hole 200. As shown in Fig. 10, the pressing member 102 is formed in a circular sheet shape, and the long body 21 is passed through the pressing member 102 by utilizing the auxiliary hole 102b having a substantially octagonal shape formed in the center. In the other embodiment, the outer diameter of the holding member 100 before the diameter reduction is larger than the inner circumference of the through hole 200. Therefore, in another embodiment, after the fire prevention device 10 is attached along the outer periphery of the plurality of elongated bodies 21, the circumferential ends 1000e are brought close to each other, the outer diameter of the holding member 100 is reduced to be smaller than the inner circumference of the through hole 200, and then the holding member 100 is inserted into the through hole 200, and then the diameter of the holding member 100 is expanded along the inner circumference of the through hole 200. Therefore, in the fireproof compartment structure 1 of the other embodiment, the fire prevention device 10 inserted into the through hole 200 is reduced in diameter. Furthermore, in the fireproof compartment structure 1 of the other embodiment, the elongated body winding portion 11 is arranged so as to overlap with the expanded portion 102f described later.

[0054] FIG. 10 is a front view of the pressing member 102. The pressing member 102 of this embodiment has cut lines 102c extending to the outer edge side at each corner of the octagonal auxiliary hole 102b. The cut lines 102c are shorter than the dividing line 102a described later, and also have two circumferential cut lines 102ca extending in the circumferential direction. The cut lines 102c are mutually connected, or the cut lines 102c and the dividing line 102a define the widened portion 102f. In the pressing member 102 of this embodiment, the cut lines 102c and the dividing line 102a are formed in the circumferential direction, so that eight widened portions 102f are arranged around the auxiliary hole 102b. Therefore, the widened portion 102f can be bent to widen the auxiliary hole 102b. As shown in FIG. 10, the circumferential cut line portion 102ca is formed in the widened portion 102f, so that the degree of bending can be adjusted by the widened portion 102f. Therefore, the size of the auxiliary hole 102b can be changed according to the outer periphery of the elongated body 21. Furthermore, the pressing member 102 includes a dividing line portion 102a that extends from the auxiliary hole 102b to the outer edge and divides the pressing member 102. The circular pressing member 102 is attached to the elongated body 21 by using the dividing line portion 102a. In addition, the pressing member 102 of this embodiment is provided with a screw hole 102e. The pressing member 102 is fixed to the partition body 20 by using the screw hole 102e.

[0055] When the pressing member 102 of this embodiment is attached to the fireproof compartment structure 1, the attachment is performed after the fireproof device arrangement step and the long body winding step (pressing and attaching step). In other embodiments, the fireproof device 10 is fixed to the partition body 20 with a screw in the pressing and attaching step. Specifically, in the pressing and attaching step, after the fireproof device 10 is inserted into the through hole 200, the pressing member 102 is expanded in the circumferential direction, and the multiple long bodies 21 are inserted from the dividing line part 102a to the auxiliary hole 102b. At this time, in order to correspond to the diameters of the multiple long bodies 21, the expanding part 102f is bent toward one space side, and the auxiliary hole 102b is expanded. Here, the bent expanding part 102f is arranged so as to overlap the long body winding part 11. Then, the pressing member 102 is arranged on one space side of the fireproof device 10. Furthermore, in another embodiment, the screw hole 102e is arranged to overlap the screw hole 1001a and the screw portion 101f (not shown) of the holding member 100. Therefore, the fire prevention device 10 and the pressing member 102 are fixed to the partition body 20 by inserting a screw (not shown) into the screw hole 102e so as to pass through the screw portion 101f and the screw hole 1001a.

[0056] As described above, in the fireproof compartment structure 1 according to the other embodiment, since the pressing member 102 is arranged on one space side of the fireproofing device 10, the fireproofing material 1031 coming out of the bag 1030 can be prevented from leaking out of the through hole 200. Also, since the fireproofing device 10 can be hidden from one space, the blocking body 101 can be prevented from coming out of the recess 210b into one space side. Furthermore, since the expanding portion 102f is arranged so as to overlap the long body winding portion 11, the long body winding portion 11 can be maintained in a wound state without coming off the multiple long bodies 21.

[0057] Furthermore, in the method of constructing a fire-resistant compartment structure 1 in one or other embodiment, the fire prevention device 10 is placed on the outer periphery of the elongated body 21 in one space and inserted into the through hole 200 (a fire prevention device placement process is performed), and the elongated body winding section 11 is wound around multiple elongated bodies 21 (elongated body winding process), so that the fire-resistant compartment structure 1 can be constructed without moving to the other space.

[0058] As described above, the shielding body 101 of this embodiment can block the heat path, thereby preventing heat from flowing from the space where the fire has occurred to the adjacent space across the partition body 20, and preventing the fire from spreading.

[0059] Next, another embodiment of the pressing member 102 described in the above other embodiment will be described with reference to Figures 12-15. Note that the same components as those described in the first and second embodiments are denoted by the same reference numerals, and the description thereof will be omitted.

[0060] The pressing member 102 of the other embodiment is divided by the dividing line portion 102a in the circumferential direction more widely than the other embodiments described above. Therefore, as shown in Fig. 12, the pressing member 102 of the other embodiment is formed in a substantially C-shape. Moreover, the pressing member 102 of the other embodiment is used in the shape shown in Figs. 13a and 13b by moving the circumferential end portion 102A in the circumferential direction and overlapping it in the thickness direction (specifically, overlapping portions 102g described later).

[0061] As shown in Figs. 12 and 13a, the pressing member 102 of the other embodiment has eight expansion parts 102f, similar to the other embodiment. These expansion parts 102f are defined by two cut lines (specifically, the dividing line part 102a and the cut line part 102c, and the cut line parts 102c are mutually connected) extending from the auxiliary hole 102b through which the elongated body 21 penetrates to the outer edge 102h side of the pressing member 102. Among them, the cut line part 102c is formed shorter in the direction extending to the outer edge 102h side of the pressing member 102 than in the other embodiment. Specifically, in the other embodiment, the auxiliary hole 102b is formed larger than in the other embodiment. Therefore, the length of the cut line part 102c in the other embodiment is shorter than in the other embodiment. Therefore, the expansion part 102f of this embodiment is formed shorter than in the other embodiment.

[0062] In another embodiment, the edge 102fa of the widened portion 102f that defines the auxiliary hole 102b is recessed toward the outer edge 102h. Therefore, as shown in FIG. 13a, the auxiliary hole 102b of the other embodiment is formed in a substantially circular shape. Furthermore, in another embodiment, the circumferential corner 102fb of the edge 102fa is rounded. In addition, in the widened portion 102f of the other embodiment, a circumferential cut line portion 102ca is formed at the end of the cut line portion 102c on the outer edge 102h side.

[0063] Each of the circumferential end portions 102A of the pressing member 102 in this embodiment includes an overlapping portion 102g. Specifically, the overlapping portion 102g is formed so as to protrude in the circumferential direction from the two circumferential end portions 102A formed by dividing the pressing member 102 at the dividing line portion 102a. In another embodiment, the overlapping portion 102g is disposed closer to the outer edge 102h than the expanding portion 102f.

[0064] These two overlapping portions 102g are arranged with a gap therebetween in the circumferential direction when the pressing member 102 is shaped like the letter C shown in Fig. 12. On the other hand, when the pressing member 102 is in the state shown in Figs. 13a and 13b, the two overlapping portions 102g overlap in the thickness direction of the pressing member 102.

[0065] In this embodiment, a screw hole 102e is formed in each of the two overlapping portions 102g. As shown in Fig. 13a, these screw holes 102e communicate with each other when the overlapping portions 102 are overlapped, thereby forming a single screw hole 102e. Furthermore, as shown in Figs. 12 and 13a, a screw hole 102e is also provided on the opposite side of the pressing member 102 across the auxiliary hole 102b.

[0066] The pressing member 102 of another embodiment is formed in a C-shape as shown in Fig. 12. On the other hand, when the overlapping portions 102g of the pressing member 102 are overlapped in the thickness direction to change from the state shown in Fig. 12 to the state shown in Fig. 13a, the length in the circumferential direction is shortened. Therefore, the pressing member 102 in the state shown in Fig. 13a is formed so as to expand from one side (edge ​​portion 102fa) to the other side (outer edge 102h) as shown in Figs. 13b and 13c.

[0067] Next, a method for constructing a fireproof compartment structure 1 to which a pressing member 102 of another embodiment is applied will be described. Note that in the fireproof compartment structure 1 of this embodiment, the case where the long body winding part 11 is not wound around the long body 21 will be described as shown in Fig. 14. Therefore, the pressing member attachment process is performed after the fire prevention device arrangement process.

[0068] In the pressing and attaching step, the fire prevention device 10 is inserted into the through hole 200, and then the long body 21 is inserted between the circumferential ends 102A and into the auxiliary hole 102b. Then, at least the circumferential ends 102A are overlapped in the thickness direction (specifically, the overlapped portions 102g are overlapped). Then, a screw is inserted into the screw hole 102e on the opposite side to the screw hole 102e of the overlapped overlapped portions 102g, thereby attaching the pressing member 102 to the fire prevention device 10, as shown in FIG.

[0069] As described above, according to the clamping member 102 of another embodiment, as in the other embodiments described above, the clamping member 102 is positioned on the side of one space relative to the fire prevention device 10, so that the fire prevention device 10 (specifically, the blocking body 101) can be hidden from one space.

[0070] Furthermore, according to another embodiment of the pressing member 102, the auxiliary hole 102b can be expanded by bending the expansion portion 102f. Therefore, even if the outer diameter of the elongated body 21 becomes larger, the auxiliary hole 102b can be enlarged by bending the expansion portion 102f, so that the state in which the elongated body 21 passes through the auxiliary hole 102b can be maintained.

[0071] In addition, in the pressing member 102 of another embodiment, as shown in Figs. 12 and 13a, the edge 102fa of the expanding portion 102f is formed to be recessed toward the outer edge 102h, and the auxiliary hole 102b is formed as a circular hole, so that the edge 102fa of the expanding portion 102f can be aligned along the outer peripheral surface of the cylindrical elongated body 21, as shown in Figs. 14 and 15. In addition, the circumferential corner 102fb of the expanding portion 102f is formed to be rounded, so that the expanding portion 102f can be prevented from biting into the elongated body 21. In particular, when the elongated body 21 is a coated pipe 211, when the coating material 212 expands, the expanding portion 102f can be prevented from biting into the coating material 212.

[0072] Moreover, when the pressing member 102 of another embodiment is applied to the fireproof compartment structure 1 in a state where at least the circumferential ends 102A are overlapped in the thickness direction (specifically, in a state where the overlapping portions 102g are overlapped), it is formed in a cone shape expanding from one space side to the other space side as shown in Figs. 13b, 14, and 15. Therefore, as shown in Fig. 13c, a space 102i can be formed inside the pressing member 102. Therefore, for example, even if the gap blocking portion 101e protrudes from the through hole 200, the gap blocking portion 101e can be hidden from the outside because it is disposed in the space 102i of the pressing member 102.

[0073] In addition, the pressing member 102 in another embodiment is attached to the fire prevention device 10 by inserting a screw into the communicating screw hole 102e with the overlapping parts 102g overlapping each other. Therefore, for example, the end 102A in the circumferential direction is not in a free state, so that it is possible to prevent the bending toward one of the spaces. Also, the auxiliary hole 102b can be maintained in a circular shape.

[0074] In addition, in a fire-resistant compartment structure 1 to which another embodiment of the clamping member 102 is applied, as shown in FIG. 15, the clamping member 102 is formed so as to expand from one side (expansion portion 102f) to the other side (outer edge 102h), so that the outer edge 102h comes into contact with the surface of the partition body 20, eliminating any gap between the partition body 20 and the clamping member 102, thereby improving the aesthetic appearance.

[0075] Although an embodiment of the present invention has been described above by way of example, the present invention is not limited to one or other embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0076] In the present embodiment, the partition 20 is a solid wall, but the partition may be a hollow wall in which plate-like members such as gypsum boards are arranged facing each other with a space therebetween. In the case of a hollow wall, a cylindrical steel sleeve is inserted into the through hole 200 before inserting the fire prevention device 10 into the through hole 200. In the above embodiment, the partition 20 is a wall that divides the space inside the building, but the partition may be a wall that divides the inside and outside of the building. The partition 20 is not limited to a wall, but may be a floor or ceiling that divides the inside of the building into multiple vertical sections. Furthermore, the partition may be a floor outside the building.

[0077] In this embodiment, the case where the through hole 200 is cylindrical (round hole) has been described, but this is not limited thereto, and the shape of the through hole 200 may be a hole other than the cylindrical shape described above, for example, a polygonal shape, an elliptical shape, or another shape.

[0078] In the present embodiment, the through-hole 200 extends straight in the thickness direction of the partition 20, but the present invention is not limited thereto, and the through-hole 200 may be formed in an L-shape, for example. In this case, the multiple elongated bodies 21 pass through the L-shaped through-hole 200 while bending midway.

[0079] Further, in this embodiment, four elongated bodies 21 are inserted into the through hole 200, but this is not limiting, and it is sufficient that at least one elongated body 21 is inserted.

[0080] In addition, in the present embodiment, a case has been described in which the covered pipe 211 composed of the pipe 213 and the covering material 212 covering the outer periphery of the pipe 213 is inserted into the through hole 200, but the present invention is not limited to this, and may be applied to a long body other than a pipe, for example, a case in which an electric wiring is covered with the covering material 212. In other words, any multi-layer long body whose outer periphery is covered with the covering material 212 may be used.

[0081] In addition, in this embodiment, the multiple elongated bodies 21 include two coated pipes 211 (multi-layered elongated bodies), but this is not limited to this, and three or more multi-layered elongated bodies may be inserted, or there may be only one.

[0082] In addition, in the present embodiment, the case where the fire prevention device 10 is inserted into the through hole 200 has been described, but the present invention is not limited thereto. For example, the fire prevention device 10 may be configured to be arranged on the outer surface of the partition body 20 corresponding to the through hole 200 (i.e., the opening edge portion of the through hole 200 in the partition body 20) so as to block the through hole 200. In addition, in the above one or other embodiment, the case where the fire prevention device 10 is arranged over the entire area of ​​the through hole 200 has been described, but the present invention is not limited thereto. The fire prevention device 10 may be set to a length up to the middle of the through hole 200. That is, in this case, the axial length of the sleeve main body is formed shorter than the length of the through hole. Furthermore, in this case, the fire prevention device 10 may be inserted into the through hole 200 from both one space and the other space.

[0083] In the present embodiment, the long body winding part 11 is disposed on one space side of the fire prevention device 10, but the present invention is not limited to this, and the long body winding part 11 may be disposed on the other space side of the fire prevention device 10, or may be disposed on both one and the other space sides with the fire prevention device 10 in the center. Furthermore, the long body winding part 11 may be a case where a plurality of long bodies 21 are wound so as to be continuous from one space to the other space from the fire prevention device 10, so as to include the fire prevention device 10 in the middle.

[0084] In addition, in this embodiment, the long body winding portion 11 is formed in a band shape and is longer than the outer circumference of the multiple long bodies 21 in order to be wound around the outer circumference of the multiple long bodies 21. However, this is not limited to this, and the long body winding portion 11 does not have to be band-shaped as long as it is capable of binding the multiple long bodies in a bundle shape. For example, the long body winding portion 11 may be formed by combining semi-annular ring members.

[0085] In addition, in this embodiment, the case where the retaining member 100 is formed in a cylindrical shape to correspond to the inner shape of the through hole 200 has been described, but this is not limited thereto, and the retaining member 100 only needs to be configured so as to become cylindrical at least when inserted into the through hole 200, and for example, may be formed in a flat plate shape prior to insertion.

[0086] In addition, in this embodiment, a case has been described in which one elongated body winding section 11 winds multiple elongated bodies 21, but this is not limited to the above, and multiple elongated body winding sections 11 may be wound around multiple elongated bodies 21.

[0087] In addition, in the present embodiment, the shield 101 is described as having the gap closing portion 101e, but this is not limiting, and the shield 101 may be configured to come into contact with the outer peripheral surface of the elongated body 21 penetrating the shield 101 and close the gap between the through hole 200 and the elongated body 21. This makes it possible to prevent heat from flowing out to one space or the other space.

[0088] In this embodiment, a case has been described in which the long body winding portion 11 is wound around multiple long bodies 21 in the same space as the gap blocking portion 101e, but this is not limited to the above, and the long body winding portion 11 may be wound around multiple long bodies 21 in a space different from the gap blocking portion 101e, or the long body winding portion 11 may be wound around multiple long bodies 21 in both the same space and different spaces.

[0089] In this embodiment, the case where the blocking body 101 is disposed only in one space has been described, but the present invention is not limited to this, and the blocking body 101 may be disposed in both the one space and the other space.

[0090] In addition, in this embodiment, the case has been described in which the fire prevention device 10 is constituted by placing the blocking body 101 so as to overlap the bottom surface of the flange portion 1001 and holding it with the holding member 100, but this is not limited to this, and the blocking body 101 can also be placed on one side of the space from the fire prevention device 10 and be a separate member from the fire prevention device 10.

[0091] In the present embodiment, the case where the fire prevention device 10 is placed and then the long body winding part 11 is wound around the multiple long bodies 21 has been described, but this is not limiting, and the fire prevention device 10 may be placed after the long body winding part 11 is wound around the multiple long bodies 21. That is, the "fire prevention device placement process" may be performed after the "long body winding process". In addition, the pressing member 102 may be placed on one side of the space from the fire prevention device 10 after the fire prevention device placement process and before the long body winding process.

[0092] In addition, in this embodiment, the gap blocking portion 101e is formed in a tapered shape by radially arranged cut lines, but this is not limited to this, and the gap blocking portion 101e may be formed in a rectangular shape by a plurality of cut lines extending parallel to the outer edge side.

[0093] In the present embodiment, in the gap blocking portion pushing step, the gap blocking portion 101e is bent toward the inside of the through hole 200, inserted into the through hole 200, and then folded back toward the flange portion 1001 side. However, this is not limiting, and the gap blocking portion 101e may simply be pushed between the thermal expansion material 103 and the elongated body 21. Here, the gap blocking portion 101e includes a large gap blocking portion 101ea and a small gap blocking portion 101eb, and the recess 210b is largely blocked by the large gap blocking portion 101ea, and the small gap blocking portion 101eb blocks the recess 210b to the back. Therefore, the gap blocking portion 101e can be inserted to the back of the recess 210b. [Explanation of symbols]

[0094] 1...fireproof compartment structure, 10...fire prevention device, 100...holding member, 101...shielding body, 102...holding member, 103...thermal expansion material, 2...compartment penetration structure, 20...compartment body, 21...long body

Claims

[Claim 1] A shielding body applied to a fire-resistant compartment structure installed in a compartment penetration structure in which a long body is inserted into a through hole formed in a compartment body that divides a space into a plurality of compartments, The fire-resistant compartment structure is configured to expand due to heat and includes a thermal expansion material provided so as to cover the elongated body, and a holding member that holds the thermal expansion material around the elongated body, In the penetration direction of the elongated body, it is arranged on one side and / or the other side of the thermal expansion material in the fire-resistant compartment structure, A blocking body, characterized in that the blocking body is configured to be penetrable by the elongated body, and configured to contact an outer peripheral surface of the elongated body and close a gap between the through hole and the elongated body.

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