JP7283712B2 - refractory material - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fire-resistant member provided in a partition having a through hole through which pipes of a building pass.

For example, in the case of a building such as an apartment house, a through hole is provided in the floor and piping such as a drain pipe is arranged in the through hole so that drainage can flow downward from the rooms on the upper floor. Generally, since the outer diameter of the pipe is smaller than the inner diameter of the through hole, a gap is formed between the outer peripheral surface of the pipe and the inner peripheral surface of the through hole. Fireproof members disclosed in Patent Documents 1 and 2, for example, are placed in this gap to prevent flames from reaching the rooms on the upper floor when a fire breaks out in the rooms on the lower floor. is being done.

The member of Patent Document 1 has a thickness that can be attached between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe, and has a length that allows it to be wound along the outer periphery of the pipe. A heat-resistant sealing material and an adhesive tape attached to the side surface of the sealing material are provided. When the member of Patent Document 1 is used for construction, a heat-expandable heat-resistant sealing material is wound around the outer peripheral surface of the pipe, and this state is maintained with an adhesive tape. Since there is a gap between the heat-expandable heat-resistant sealing material and the inner peripheral surface of the through-hole, the gap is closed by filling the gap with a filler such as mortar or refractory putty.

The member of Patent Literature 2 includes a thermal expansion body, a shape maintaining portion that maintains the shape when the thermal expansion body is deformed, and a locking tool. When the member of Patent Document 2 is used for construction, the thermal expansion body is arranged in the through hole and the locking tool is locked to the upper edge of the through hole. After that, the gap between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe is filled with a caulking material from above to close the gap.

JP-A-2000-240854 JP 2017-109069 A

As described above, the thermal expansion member is provided in the gap between the outer peripheral surface of the pipe and the inner peripheral surface of the through hole to suppress the spread of fire from one room to another. There is a strong demand to further improve the suppression effect.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object of the present invention is to further improve the effect of suppressing the spread of fire by enhancing the sealing effect of the thermally expandable member.

In order to achieve the above object, the first invention is arranged between the inner peripheral surface of a through hole formed in a partition of a building and the outer peripheral surface of a pipe inserted through the through hole, and is provided in the event of a fire. In the refractory member that suppresses the spread of fire through the through-hole, the inner peripheral surface of the through-hole and the outer peripheral surface of the pipe are spaced apart from each other in the center line direction of the through-hole, first and second thermally expandable members that expand with heat; a holding member made of a noncombustible material that holds the first and second thermally expandable members; and inner circumferences of the first thermally expandable member and the through hole. a sponge-made first outer peripheral sealing member made of an elastic material and fixed to the first thermally expansible member; and between the first thermally expansive member and the outer peripheral surface of the pipe. between the first inner peripheral sealing member made of sponge made of an elastic material and fixed to the first thermally expansive member, and the second thermally expansive member and the inner peripheral surface of the through hole A second outer peripheral seal member made of sponge and made of an elastic material and fixed to the second thermally expansive member is arranged between the second thermally expansive member and the outer peripheral surface of the pipe, and the A second inner peripheral sealing member made of sponge and made of an elastic material is fixed to the second thermally expandable member, and the first outer peripheral sealing member and the second outer peripheral sealing member are connected to each other so that the pipe extends. and the first inner peripheral side sealing member and the second inner peripheral side sealing member are arranged with a spacing therebetween in the direction in which the pipe extends. .

According to this configuration, since the plurality of thermally expansive members are spaced apart from each other in the direction of the center line of the through hole of the partition, a gap is formed between these thermally expansive members. Become. For example, if a fire breaks out in one of the rooms partitioned by the partition, the heat of the fire causes the thermal expansion member located on the one room side to expand. At this time, since a gap is formed between the thermally expansive member positioned on the other room side, heat from one room is less likely to be transmitted to the thermally expansive member on the other room side. Further, the expanding thermally expansive member is guided into the through hole, the thermal expansive member expands inside the through hole, and the through hole is closed by the thermal expansive member, thereby suppressing the spread of fire through the through hole. . Similarly, when a fire breaks out in the other room, the spread of the fire to the other room is suppressed.

A second invention is a fire-resistant member provided in a partition of a building having a through-hole formed thereon and suppressing the spread of fire through the through-hole in the event of a fire, wherein the fire-resistant member protrudes from the through-hole on both sides in the direction of the center line. First and second thermally expansible members that are spaced apart from each other in the direction of the center line of the through hole and expand by heat during a fire, and an incombustible material that holds the first and second thermally expansible members. and a first outer peripheral side made of a sponge made of an elastic material and fixed to the first thermally expansive member, disposed between the first thermally expansible member and the inner peripheral surface of the through hole. A first sponge made of an elastic material and fixed to the first thermally expansive member is disposed between the sealing material, the first thermally expansive member, and the outer peripheral surface of the pipe inserted through the through hole. A second outer periphery made of a sponge made of an elastic material and fixed to the second thermally expansive member, disposed between the inner peripheral side sealing material and the inner peripheral surface of the through hole and the second thermally expansive member. a side sealing material, and a second inner peripheral side sealing material made of sponge and made of an elastic material, disposed between the second thermally expansible member and the outer peripheral surface of the pipe and fixed to the second thermally expansible member; wherein the first outer peripheral side sealing material and the second outer peripheral side sealing material are arranged with a space therebetween in the direction in which the pipe extends, and the first inner peripheral side sealing material and the second inner peripheral side sealing material The side seal members are characterized in that they are spaced apart from each other in the direction in which the pipe extends .

According to this configuration, the plurality of thermally expandable members protrude from the through hole to both sides in the center line direction while being separated from each other. For example, if a fire breaks out in one of the rooms partitioned by the partition, the heat of the fire causes the thermal expansion member located on the one room side to expand. Since the thermally expansible member is held by the holding member, the thermally expansible member does not fall off and expands toward the through-hole to close the through-hole with the thermally expansible member. This suppresses the spread of fire through the through holes. Similarly, when a fire breaks out in the other room, the spread of the fire to the other room is suppressed.

Also, the sealing material seals between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe. Therefore, it is not necessary to fill the space between the inner peripheral surface of the through-hole and the outer peripheral surface of the pipe with an irregular filler, which improves workability on site and shortens the construction time. Further, by arranging the sealing material between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe, the pipe can be adjusted to be centered in the through hole without being eccentric.

A third aspect of the invention is characterized in that a heat insulating material is provided between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe inserted through the through hole.

With this configuration, for example, when a fire breaks out in one room, heat in one room is less likely to be transferred to the other room by the heat insulating material, so the effect of suppressing the spread of fire is further enhanced.

Further, it is characterized by comprising a thermally expandable member arranged between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe inserted through the through hole.

According to this configuration, the thermally expansive member expands inside the through-hole and the through-hole is closed by the thermally expansive member, so that the effect of suppressing the spread of fire is further enhanced.

In addition, the thermally expandable member arranged between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe, and the thermally expandable member protruding from the through hole on both sides in the center line direction, It is characterized in that they are spaced apart from each other in the direction of the center line of the through holes.

According to this configuration, since a gap is formed between the plurality of thermally expansive members arranged so as to be adjacent to each other, for example, when a fire breaks out in one room, the heat is transferred to the other room. It becomes difficult to transmit to the thermally expansible member. Moreover, it becomes possible to secure a space for the expansion of the thermally expandable member.

A fourth invention is characterized in that the holding member is a mesh member.

A fifth invention is characterized by comprising a film-like or foil-like incombustible member covering the thermally expandable member.

According to this configuration, by covering the thermally expansive member with the incombustible member, the thermally expansive member is less likely to partially drop when the thermally expansive member expands. Moreover, since the incombustible member is thin and film-like, it does not hinder the expansion of the thermally expansive member.

A sixth aspect of the invention is characterized in that the fireproof member has flexibility to deform into a shape along the outer peripheral surface of the pipe inserted through the through hole.

According to this configuration, the shape of the fireproof member can be easily formed along the outer peripheral surface of the pipe.

In addition, a plurality of thermally expandable members that expand due to heat during a fire penetrate between the inner peripheral surface of the through hole formed in the partition of the building and the outer peripheral surface of the pipe that is inserted through the through hole. The fireproof structure is characterized in that the plurality of thermally expansible members are arranged at intervals in the direction of the center line of the hole and held by a holding member made of a noncombustible material.

Further, the plurality of thermally expandable members are arranged at intervals in the center line direction of the through hole in a state in which they protrude from the through hole formed in the partitioned portion of the building to both sides in the center line direction. The fireproof structure is characterized in that the thermally expandable member is held by a holding member made of a noncombustible material.

According to the first invention, the plurality of thermally expandable members held by the holding member are arranged spaced apart from each other in the centerline direction of the through hole between the inner peripheral surface of the through hole and the outer peripheral surface of the pipe. As a result, the thermally expandable member that expands during fire can be guided into the through hole and expanded inside the through hole, and heat transfer can be suppressed. As a result, the sealing effect of the thermally expandable member can be enhanced, so that the effect of suppressing the spread of fire can be further enhanced.

According to the second invention, since the plurality of thermally expansive members held by the holding member are made to protrude from both sides of the through hole, the thermally expansive members that expand in the event of a fire are prevented from falling through the through hole. The through-hole can be closed by guiding it toward. As a result, the sealing effect of the thermally expandable member can be enhanced, so that the effect of suppressing the spread of fire can be further enhanced.

In addition, since the sealing material can seal between the outer peripheral surface of the pipe and the inner peripheral surface of the through hole, it is possible to improve workability on site and shorten the construction time. .

According to the third invention, by arranging the heat insulating material between the outer peripheral surface of the pipe and the inner peripheral surface of the through-hole, the effect of suppressing the spread of fire can be further enhanced, and the smoke blocking performance can be obtained. can be done.

According to the fourth aspect of the invention, since the holding member is a mesh member, it is possible to hold the thermally expansive member without inhibiting its expansion in the event of a fire while having a simple and inexpensive structure.

According to the fifth invention, since the film-like or foil-like incombustible member covering the thermally expansive member is provided, the thermally expansible member is partially covered without impeding the expansion of the thermally expansive member in the event of a fire. It can prevent falling.

According to the sixth invention, the shape of the refractory member can be easily formed along the outer peripheral surface of the pipe, so that workability on site can be further improved.

It is the figure which looked at the fireproof member which concerns on Embodiment 1 from the outer peripheral side. It is the figure which looked at the fireproof member which concerns on Embodiment 1 from the inner peripheral side. 1 is an end view of a fireproof member according to Embodiment 1. FIG. 1 is a vertical cross-sectional view of a fireproof structure according to Embodiment 1. FIG. 1 equivalent view according to Embodiment 2. FIG. FIG. 2 is a view corresponding to FIG. 2 according to Embodiment 2; FIG. 3 is a view corresponding to FIG. 3 according to Embodiment 2; FIG. 5 is a view corresponding to FIG. 4 according to Embodiment 2;

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail based on the drawings. It should be noted that the following description of preferred embodiments is essentially merely illustrative, and is not intended to limit the invention, its applications, or its uses.

(Embodiment 1)
1 to 3 show a fireproof member 1 according to Embodiment 1 of the present invention, and FIG. 4 shows a fireproof structure A according to Embodiment 1 of the present invention. As shown in FIG. 4, this fireproof member 1 is placed between an inner peripheral surface 101a of a through-hole 101 formed in a partition 100 of a building and an outer peripheral surface 102a of a pipe 102 inserted through the through-hole 101. It is a member that is arranged and used. By arranging this fireproof member 1 between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102, it is possible to suppress the spread of fire through the through hole 101 when a fire occurs. In this embodiment, a case where the building is an apartment complex will be described, but the building may be other than an apartment complex, such as a detached house, an office, a factory, a store, etc. having at least two rooms on the same floor. There may be. Moreover, although the partition part 100 can be a wall having fire resistance such as reinforced gypsum board or ALC ((light cellular concrete)), it is not limited to this, and may be a floor. The example shown in FIG. 4 is an example in which the partition section 100 is composed of two reinforced gypsum boards, and the thickness of one reinforced gypsum board is approximately 21 mm.

The partition 100 extends vertically, and the left side of the partition 100 in FIG. 4 is one room R1, and the right side of the partition 100 in FIG. 4 is the other room R2. Therefore, one room R1 and the other room R2 are partitioned by the partition part 100. As shown in FIG. A through hole 101 is formed in a predetermined portion of the partition portion 100 so as to pass through in the horizontal direction. One room R1 and the other room R2 can be communicated with each other through the through hole 101 . The through hole 101 has a substantially circular cross section.

Also, the pipe 102 may be, for example, a drain pipe, but is not limited to this. The pipe 102 extends substantially horizontally from one room R1 to the other room R2 while being inserted through the through hole 101 . The pipe 102 has a multi-layered structure including, for example, a vinyl chloride pipe 103, a nonwoven fabric 104 provided so as to cover the outer peripheral surface of the pipe 103, and a rubber sheet 105 provided so as to cover the outer peripheral surface of the nonwoven fabric 104. However, it is not limited to this. Further, the pipe 102 can be made of resin. If it is made of resin, it may shrink in diameter or burn down due to the heat of a fire. As a result, the spread of fire to the upper floors is suppressed.

The outer diameter of the pipe 102 is set to be smaller than the inner diameter of the through hole 101. Therefore, the gap between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102 is a predetermined amount over the entire circumference. A gap will be formed. The fire-resistant structure A of the present invention can be configured by installing the fire-resistant member 1 so as to close the gap.

In the description of this embodiment, the side of the fire-resistant member 1 on the pipe 102 side when the fire-resistant structure A is configured is referred to as the "inner peripheral side", and the opposite side, that is, the through-hole 101 side of the fire-resistant member 1 is referred to as the " shall be referred to as the “peripheral side”.

(Structure of refractory member 1)
The fireproof member 1 is arranged between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102, and includes a first thermally expandable member 2A and a second thermally expandable member 2B that expand due to heat during a fire. , a first outer seal member 3A and a first inner seal member 4A, a second outer seal member 3B and a second inner seal member 4B, a holding member 5, and a film-like incombustible member 6. ing.

The first thermally expandable member 2A and the second thermally expandable member 2B may be thermally expandable members used in buildings, and the type is not particularly limited, but mention may be made of members that expand due to heat in the event of a fire. can be done. For example, a compound of expanded graphite and boric acid can be used as the first thermally expandable member 2A and the second thermally expandable member 2B. As the expanded graphite, one that expands, for example, 100 times or more when heated with a flame can be used.

The properties of the first thermally expandable member 2A and the second thermally expandable member 2B are not particularly limited. can do. Preferably, the first thermally expansible member 2A and the second thermally expansive member 2B are formed in a tape shape with a thickness of several mm, and are flexible so that they can be bent when an external force is applied. It is preferred that the

The first thermally expandable member 2A and the second thermally expandable member 2B having such properties can be obtained, for example, by mixing flexible rubber or thermoplastic elastomer with expanded graphite, borax, a plasticizer, or the like. can. Examples of rubber include natural rubber, isoprene rubber, butadiene rubber, and acrylic rubber. Examples of thermoplastic elastomers include styrene-based thermoplastic elastomers and olefin-based thermoplastic elastomers. As the first thermally expandable member 2A and the second thermally expandable member 2B, for example, a butyl rubber sealing material having a thickness of 2 to 8 mm (preferably 4 mm) and containing expanded graphite is preferable.

The first thermally expandable member 2A and the second thermally expandable member 2B are arranged spaced apart from each other in the centerline direction of the through-hole 101 between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102. and arranged to extend continuously in the circumferential direction along the inner peripheral surface 101 a of the through hole 101 .

The first thermally expansive member 2A has a portion arranged in the through hole 101 on the one room R1 side, and the portion arranged in the through hole 101 and toward the one room R1 It also has a portion protruding from the through hole 101 . It is continuous from the portion arranged in the through hole 101 to the portion projecting toward one room R1. The second thermally expandable member 2B has a portion arranged in the through hole 101 on the side of the other room R2. It also has a portion protruding from the through hole 101 . It is continuous from the portion arranged in the through hole 101 to the portion projecting toward the other room R2.

The length of the portion of the first thermally expansive member 2A and the second thermally expansive member 2B that is arranged in the through hole 101 (dimension in the centerline direction of the through hole 101) can be set to 10 mm or more and 30 mm or less. . Also, the length of the portion of the first thermally expansive member 2A and the second thermally expansive member 2B projecting from the through hole 101 (dimension in the direction of the center line of the through hole 101) should be set to, for example, 30 mm or more and 50 mm or less. can be done. Also, the distance between the first thermally expansive member 2A and the second thermally expansive member 2B is preferably, for example, equal to or larger than the thickness of the thermally expansive members 2A and 2B, and in this example is 4 mm or more. is. The distance between the first thermally expansive member 2A and the second thermally expansive member 2B can be about 10 mm, and the upper limit dimension can be 20 mm. By setting the distance between the first thermally expansive member 2A and the second thermally expansive member 2B to be equal to or greater than the thickness of the thermally expansive members 2A and 2B, for example, if a fire breaks out in one room R1, Furthermore, the heat is less likely to be transmitted to the second thermally expandable member 2B.

As shown in FIGS. 1 and 2, the holding member 5 is a member that has a plurality of openings 5a and holds the first thermal expansion member 2A and the second thermal expansion member 2B. The holding member 5 can be a mesh member made of a noncombustible material, specifically a wire mesh (lath wire mesh). It can be configured by a member or the like.

The holding member 5 can be arranged on the inner peripheral side of the first thermally expandable member 2A and the second thermally expandable member 2B. A part of the holding member 5 is embedded in the first thermal expansion member 2A and the second thermal expansion member 2B, thereby fixing the first thermal expansion member 2A and the second thermal expansion member 2B to the holding member 5. It will be. As a result, the first thermally expandable member 2A and the second thermally expandable member 2 can be maintained with a predetermined gap therebetween. The holding member 5 is formed so as to cover the entire thermally expandable members 2A and 2B. A portion of the holding member 5 between the first thermally expandable member 2A and the second thermally expandable member 2B is exposed from the thermally expandable members 2A and 2B.

The holding member 5 is provided with a locking portion 5b projecting to the outer peripheral side of the fireproof member 1. As shown in FIG. The engaging portion 5b is formed by bending a portion of the holding member 5 toward the outer circumference, and is integrated with the main body portion of the holding member 5. As shown in FIG. The locking portion 5b is for suppressing the displacement of the fire-resistant member 1 by engaging with the peripheral portion of the through-hole 101 from the outside when the fire-resistant member 1 is installed. Moreover, the engaging portion 5 b can also be used as a fixing portion for fixing the fireproof member 1 to the partition portion 100 .

As the holding member 5, for example, a wire mesh made of galvanized steel wire of 0.20 to 1.0 kg/m ² (preferably 0.5 kg/m ² ) can be used. Also, the end of the holding member 5 is bent to prevent injury to the operator.

The first outer seal material 3A and the first inner seal material 4A are fixed to the first thermally expandable member 2A, and the second outer seal material 3B and the second inner seal material 4B are fixed to the second thermal expansion member 2A. It is fixed to the inflatable member 2B. The first outer peripheral side sealing material 3A is adhered to the portion arranged in the through hole 101 on the outer peripheral side of the first thermally expandable member 2A. The first inner peripheral side sealing material 4A is adhered to the portion arranged in the through hole 101 on the inner peripheral side of the first thermally expandable member 2A. Therefore, the first outer peripheral side seal member 3A and the first inner peripheral side seal member 4A are arranged between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102 . In addition, the second outer peripheral side sealing material 3B is adhered to the portion arranged in the through hole 101 on the outer peripheral side of the second thermally expandable member 2B. The second inner peripheral side sealing material 4B is adhered to a portion of the inner peripheral side of the second thermally expandable member 2B, which is arranged in the through hole 101. As shown in FIG. Therefore, the second outer peripheral side seal member 3B and the second inner peripheral side seal member 4B are arranged between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102 .

The first outer seal member 3A, the first inner seal member 4A, the second outer seal member 3B, and the second inner seal member 4B are formed between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102. It is a member made of an elastic material for covering the gap between and ensuring airtightness. These sealing materials 3A, 3B, 4A, and 4B can be made of foamed rubber (sponge), for example. If a foam material is used, it is preferably made of rubber. Also, the sealing members 3A, 3B, 4A, and 4B can be fixed to the holding member 5 by, for example, an airtight adhesive tape or the like. The sealing materials 3A, 3B, 4A, 4B and the holding member 5 can be brought into close contact so that no gap is formed between the sealing materials 3A, 3B, 4A, 4B and the holding member 5. FIG. As a result, it is possible to prevent smoke or the like from entering another room through the through hole 101 during a fire.

The cross-sectional shape of the sealing members 3A, 3B, 4A, and 4B can be substantially rectangular, but is not limited to this. Further, the thickness of the first outer peripheral side seal member 3A and the second outer peripheral side seal member 3B can be made approximately the same as the thickness of the first inner peripheral side seal member 4A and the second inner peripheral side seal member 4B. One may be thicker than the other. The thickness of the first outer peripheral side sealing material 3A and the second outer peripheral side sealing material 3B and the thickness of the first inner peripheral side sealing material 4A and the second inner peripheral side sealing material 4B are combined to form the through hole 101. It is set longer than the dimension of the gap between the peripheral surface 101 a and the outer peripheral surface 102 a of the pipe 102 . Thereby, when the sealing materials 3A, 3B, 4A, and 4B are arranged between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102, they can be compressed and elastically deformed.

Examples of the sealing materials 3A, 3B, 4A, and 4B include sponges such as EPDM sponge, CR sponge, and urethane sponge having a density of 0.02 to 0.10 g/cm ³ (preferably 0.06 g/cm ³ ). However, it is not limited to these, and any elastic material capable of exhibiting sealing properties may be used.

A heat insulator disposed between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102 instead of the sealing materials 3A, 3B, 4A, 4B or in addition to the sealing materials 3A, 3B, 4A, 4B It may have material. Glass wool, rock wool, or the like, for example, can be used as the heat insulating material.

The film-like noncombustible member 6 is a member that covers the first thermally expandable member 2A and the second thermally expandable member 2B, and is composed of, for example, a noncombustible aluminum tape or the like in which an adhesive layer is provided on a base material having aluminum foil. However, it is not limited to this, and a film-like incombustible member in which an adhesive layer or an adhesive layer is provided on a thin metal material, a foil-like incombustible member, or the like can be used. The film-like incombustible member 6 may be provided as required.

The film-like incombustible member 6 covering the first thermally expandable member 2A is continuous from the inner peripheral surface of the first thermally expandable member 2A to the outer peripheral surface thereof, and It extends to the vicinity of the sealing material 3A. The film-like incombustible member 6 covering the second thermally expandable member 2B is continuous from the inner peripheral side surface of the second thermally expandable member 2B to the outer peripheral side surface, and is the second outer peripheral side of the second thermally expandable member 2B. It extends to the vicinity of the sealing material 3B. Two film-like noncombustible members 6 may be provided, or one may be provided. Examples of the film-like incombustible member 6 include aluminum foil and copper foil having a thickness of 50 to 500 μm (preferably 200 μm).

As described above, each member constituting the refractory member 1 can be easily deformed by applying force manually by a general worker. It has flexibility to deform into a shape along the

In addition, one refractory member 1 may cover the entire circumference of the outer peripheral surface 102a of the pipe 102, or a plurality of refractory members 1 may be arranged along the outer peripheral surface 102a of the pipe 102. It may be a configuration provided with. For example, by combining two fire-resistant members 1 each having a length of half the circumference of the outer peripheral surface 102a of the pipe 102, the fire-resistant members 1 can be arranged over the entire circumference of the outer peripheral surface 102a of the pipe 102. can be done. Three or more refractory members 1 can also be combined.

(Installation procedure for fireproof member 1)
Next, the construction procedure of the fire-resistant member 1 configured as described above will be described. A method of installing the fire-resistant member 1 after the pipe 102 is inserted through the through-hole 101 is called post-installation. In the following description, post-construction will be described, but the present invention is not limited to post-construction. It can also correspond to the construction method of inserting.

First, the refractory member 1 is deformed into a shape along the outer peripheral surface 102 a of the pipe 102 . At this time, two refractory members 1 can also be used, in which case one refractory member 1 forms a shape close to a semicircular arc after being deformed.

After that, the fireproof member 1 is inserted between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102, and the outer peripheral side sealing materials 3A and 3B and the inner peripheral side sealing materials 4A and 4B are inserted into the through hole 101. It is pushed between the inner peripheral surface 101 a and the outer peripheral surface 102 a of the pipe 102 . The outer sealing members 3A and 3B and the inner sealing members 4A and 4B, which are arranged between the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102, are elastically deformed and compressed. Therefore, the inner peripheral surface 101a of the through-hole 101 and the outer peripheral surface 102a of the pipe 102 are in close contact with each other over the entire periphery to cover the gap. At this time, the locking portion 5b of the holding member 5 is positioned at the peripheral portion of the through hole 101. As shown in FIG. The refractory member 1 can be positioned by engaging the engaging portion 5b with the peripheral portion of the through hole 101 .

As described above, the thermally expandable members 2A, 2B and the sealing materials 3A, 3B, 4A are placed between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102 formed in the partitioned portion 100 of the building. , 4B can be configured. As described above, it can be constructed by just inserting it from one of the rooms R1, so that it is easy to construct. In addition, construction can also be performed from the other room R2.
(Action and effect of the embodiment)
As described above, according to this embodiment, the first thermally expandable member 2A and the second thermally expandable member 2B are spaced apart from each other in the centerline direction of the through hole 101 of the partition 100. Therefore, a gap can be formed between the first thermally expandable member 2A and the second thermally expandable member 2B. For example, if a fire breaks out in one of the rooms R1 partitioned by the partition 100, the heat of the fire causes the first thermally expandable member 2A positioned on the one room R1 side to expand. At this time, since there is a gap between the second thermally expandable member 2B located on the other room R2 side, the heat of the one room R1 is transferred to the second thermally expandable member 2B located on the other room R2 side. It becomes difficult to transmit to 2B. Also, the expanding first thermally expansible member 2A is guided into the through hole 101 so that the first thermally expansive member 2A expands inside the through hole 101, and the through hole 101 is closed by the first thermally expansive member 2A. and the spread of fire through the through holes 101 is suppressed. Similarly, when a fire breaks out in the other room R2, the spread of the fire to the one room R1 is suppressed. In addition, smoke-blocking performance can also be obtained.

In addition, since the outer peripheral surface 102a of the pipe 102 and the inner peripheral surface 101a of the through hole 101 can be sealed by the sealing materials 3A, 3B, 4A, and 4B, it is possible to improve workability on site. It can also shorten the construction time.

(Embodiment 2)
5 to 7 show a fire-resistant member 1 according to Embodiment 2 of the present invention, and FIG. 8 shows a fire-resistant structure A according to Embodiment 2 of the present invention. The second embodiment differs from the first embodiment in the structure of the compartment 100 and the arrangement of the thermally expandable members. In the following, the same parts as in the first embodiment are given the same reference numerals, and the explanation thereof is omitted, and the parts different from the first embodiment will be explained in detail.

The partition 100 of the second embodiment is a wall made of ALC, and is thicker than the partition 100 of the first embodiment, and has a thickness of about 75 mm.

The fire-resistant member 1 of Embodiment 2 is provided in a partition 100 of a building in which a through hole 101 is formed, and is a member for suppressing the spread of fire through the through hole 101 in the event of a fire. A first thermally expandable member 2C and a second thermally expandable member 2D that are arranged in the center line direction of the through hole 101 while protruding on both sides of the and are arranged at intervals in the direction of the center line of the through hole 101, and expand by heat during a fire, A holding member 5 (shown in FIG. 8) made of a noncombustible material is provided to hold the first thermally expandable member 2C and the second thermally expandable member 2D. Furthermore, a third thermally expandable member 2E and a fourth thermally expandable member 2F arranged between the inner peripheral surface 101a of the through hole 101 and the outer peripheral surface 102a of the pipe 102 are also provided.

That is, the first thermally expandable member 2C protrudes from the through-hole 101 toward the room R1, and the second thermally expandable member 2D protrudes from the through-hole 101 toward the other room R1. The third thermally expandable member 2E is provided on the inner peripheral side between the first thermally expandable member 2C and the second thermally expandable member 2D. It is provided on the outer peripheral side between the member 2C and the second thermally expandable member 2D. The third thermally expandable member 2E and the fourth thermally expandable member 2F are held by the holding member 5. As shown in FIG. The first thermally expansive member 2C, the third thermally expansive member 2E, and the fourth thermally expansive member 2F are arranged at intervals in the direction of the center line of the through hole 101, and the second thermally expansive member 2D Also, the third thermally expansive member 2E and the fourth thermally expansive member 2F are arranged in the center line direction of the through-hole 101 with an interval therebetween.

The first outer peripheral sealing material 3A and the first inner peripheral sealing material 4A are attached to the holding member 5 between the first thermally expandable member 2C, the third thermally expandable member 2E and the fourth thermally expandable member 2F. Fixed. Further, the second outer peripheral side sealing material 3B and the second inner peripheral side sealing material 4B are holding members between the second thermally expandable member 2D and the third thermally expandable member 2E and the fourth thermally expandable member 2F. 5 is fixed.

As shown in FIG. 8, by attaching the fireproof member 1 to the building partition 100, the thermally expandable members 2C and 2D are arranged on both sides in the center line direction from the through holes 101 formed in the building partition 100. A refractory structure A can be obtained in which the thermally expansive members 2C and 2D are held by the holding member 5 made of a noncombustible material, while being spaced apart from each other in the centerline direction of the through hole 101 in a projected state.

According to the second embodiment, the first thermally expandable member 2C and the second thermally expandable member 2D are separated from each other and protrude from the through hole 101 on both sides in the center line direction. For example, if a fire breaks out in one of the rooms R1 partitioned by the partition 100, the heat of the fire causes the first thermally expandable member 2C located on the one room R1 side to expand. Since the first thermally expansive member 2C is held by the holding member 5, the first thermally expansive member 2C does not drop and expands toward the through-hole 101, causing the through-hole 101 to undergo the first thermal expansion. It is closed by the elastic member 2C. This suppresses the spread of fire through the through holes 101 . Similarly, when a fire breaks out in the other room R2, the spread of the fire to the one room R1 is suppressed. In addition, heat transfer between the first thermally expandable member 2C, the third thermally expandable member 2E, and the fourth thermally expandable member 2F is suppressed, and the second thermally expandable member 2D and the third heat expandable member 2D are suppressed. Heat transfer between the expansive member 2E and the fourth thermal expansive member 2F can also be suppressed.

The above-described embodiments are merely examples in all respects and should not be construed in a restrictive manner. Furthermore, all modifications and changes within the equivalent scope of claims are within the scope of the present invention.

For example, the engaging portion 5b of the fire-resistant member 1 can be fixed to a gypsum board or the like by fixing means such as a tacker (for example, a stapler). The fixing means is not limited to a tacker, and a member that can be inserted or screwed into the member that constitutes the compartment 100 can be used. Moreover, the engaging portion 5b can be fixed by the fixing means not only to the gypsum board but also to ALC (light aerated concrete) or the like. By fixing the engaging portion 5b, it is possible to suppress displacement of the fire-resistant member 1 due to movement of the pipe 102, an earthquake, or other vibrations, thereby exhibiting the desired fire-resistant performance. Further, in Embodiment 1, the locking portion 5b of the fireproof member 1 can be fixed to the partition portion 100 by fixing means. The refractory member 1 can also be configured with fixing means. Moreover, the fire-resistant structure A can also be configured with fixing means.

As explained above, the present invention can be used for building partitions such as floors and walls.

1 Refractory members 2A, 2B Thermally expandable members 3A, 3B Outer peripheral side sealing members 4A, 4B Inner peripheral side sealing member 5 Holding member 6 Film-like incombustible member 100 Division part 101 Through hole 101a Inner peripheral surface 102 Pipe 102a Outer peripheral surface

Claims (6)

A fire resistance that is placed between the inner peripheral surface of a through-hole formed in a partition of a building and the outer peripheral surface of a resin pipe that is inserted through the through-hole, and suppresses the spread of fire through the through-hole in the event of a fire. in the member,
first and second thermally expansible members arranged spaced apart from each other in the centerline direction of the through-hole between the inner peripheral surface of the through-hole and the outer peripheral surface of the pipe, and which expand due to heat in the event of a fire; ,
a holding member made of a noncombustible material that holds the first and second thermally expandable members;
a first outer peripheral side sealing member made of sponge and made of an elastic material and fixed to the first thermally expansible member, the first outer peripheral sealing member being disposed between the first thermally expansible member and the inner peripheral surface of the through hole;
a first inner peripheral sealing member made of sponge and made of an elastic material, which is arranged between the first thermally expansive member and the outer peripheral surface of the pipe and fixed to the first thermally expansive member;
a second outer peripheral sealing member made of a sponge and made of an elastic material, disposed between the second thermally expansive member and the inner peripheral surface of the through hole and fixed to the second thermally expansive member;
a second inner peripheral sealing material made of sponge and made of an elastic material, which is arranged between the second thermally expansive member and the outer peripheral surface of the pipe and fixed to the second thermally expansive member ;
The first outer peripheral side sealing material and the second outer peripheral side sealing material are arranged at intervals in the direction in which the pipe extends,
A fire-resistant member, wherein the first inner peripheral side sealing material and the second inner peripheral side sealing material are arranged with a space therebetween in a direction in which the pipe extends. In a fire-resistant member provided in a section of a building in which a through-hole is formed and which suppresses the spread of fire through the through-hole in the event of a fire,
first and second thermally expansive members that are arranged in the centerline direction of the throughhole while being spaced apart from each other in a state in which they protrude from the throughhole on both sides in the centerline direction, and that expand due to heat in the event of a fire;
a holding member made of a noncombustible material that holds the first and second thermally expandable members;
a first outer peripheral side sealing member made of sponge and made of an elastic material and fixed to the first thermally expansible member, the first outer peripheral sealing member being disposed between the first thermally expansible member and the inner peripheral surface of the through hole;
A first internal sponge made of an elastic material and fixed to the first thermally expansible member is arranged between the first thermally expansive member and the outer peripheral surface of the resin pipe inserted through the through hole. a peripheral sealing material;
a second outer peripheral sealing member made of a sponge and made of an elastic material and fixed to the second thermally expansive member, disposed between the second thermally expansible member and the inner peripheral surface of the through hole;
a second inner peripheral sealing material made of sponge and made of an elastic material, which is arranged between the second thermally expansive member and the outer peripheral surface of the pipe and fixed to the second thermally expansive member ;
The first outer peripheral side sealing material and the second outer peripheral side sealing material are arranged at intervals in the direction in which the pipe extends,
The fire-resistant member, wherein the first inner peripheral side sealing material and the second inner peripheral side sealing material are arranged with a space therebetween in a direction in which the pipe extends. In the fire-resistant member according to claim 1 or 2,
A fire-resistant member comprising a heat insulating material arranged between an inner peripheral surface of the through hole and an outer peripheral surface of a pipe inserted through the through hole. In the fire-resistant member according to any one of claims 1 to 3,
A fireproof member, wherein the holding member is a mesh member. In the fire-resistant member according to any one of claims 1 to 4,
A fire-resistant member comprising a film-like or foil-like incombustible member covering the thermally expandable member. In the fire-resistant member according to any one of claims 1 to 5,
The fire-resistant member is characterized in that the fire-resistant member has flexibility such that it deforms into a shape along the outer peripheral surface of the pipe inserted through the through-hole.

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