JP2023006147A - Fireproof member and fireproof structure - Google Patents

Abstract

To provide a fireproof member and the like excellent in usability for attachment.SOLUTION: A fireproof member 1 comprises a thermal expansive member 5 laminated on one surface of a substrate 3. The substrate 3, for example, is a member having shape retainability in some extent such as a metal sheet such as aluminum or a metallic glass cloth composite sheet. A plurality of cut-off parts are formed in a radial shape in a plan view. A cut-in part 7 is formed from a substantial center of the fireproof member 1 to an intermediate on a side end part. A plurality of tongue-like pieces 11 on which the thermal expansive member 5 is laminated is formed by the cut-in part 7. A cut-divided part 9 is formed from the substantial center of the cut-n part 7 in the radial shape to one side end in a plan view.SELECTED DRAWING: Figure 1

Description

The present invention relates to, for example, a fireproof member or the like for ensuring fireproof performance for penetrating parts such as pipes and cables into compartments.

2. Description of the Related Art In a building or the like, pipes and cables (hereinafter sometimes simply referred to as long bodies) may be laid in each room partitioned by partitions. In this case, it is necessary to reliably close the gap around the elongated body inserted through the through hole.

For example, as a gap blocker for inserting a pipe through a through-hole formed in the floor, a gap blocker with radial cut lines is arranged on the lower surface side (ceiling surface) of the floor slab. A method has been proposed in which the formed flap covers the periphery of the elongated body and closes the through hole (for example, Patent Document 1).

JP 2018-44660 A

By arranging such a gap blocker and filling the gap between the through hole and the pipe with a noncombustible material such as mortar, the gap can be completely closed.

On the other hand, when a long body is laid through such a partition, for example, if a fire breaks out in one room, the fire spreads through the long body and spreads throughout the building, causing serious damage. There is a risk. For this reason, a method has been proposed in which a thermal expansion member is wound around the elongated body.

In this case, first, the thermal expansion member is wrapped around the elongated body located inside the through hole, and the gap blocker as disclosed in Patent Document 1 is disposed on the elongated body around which the thermal expansion member is wound. , the inside of the through-hole is filled with mortar or the like. By doing so, the through hole can be reliably blocked, and when the elongated body is destroyed by fire, the hole is blocked by the thermal expansion member, thereby suppressing the spread of the fire. can be done.

However, in order to construct such a fireproof structure, it is necessary to separately perform the work of fixing the thermal expansion member to the elongated body and the work of attaching the gap blocker, resulting in poor workability. Further, if the position of the elongated body is adjusted after the thermal expansion member is attached and before the gap blocker is fixed, the attachment position of the thermal expansion member needs to be corrected again.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire-resistant member or the like which is excellent in mounting workability.

In order to achieve the object described above, a first invention comprises a base material having a shape-retaining property, and a thermally expandable member laminated on at least a part of the base material. The refractory member is characterized by having a plurality of formed cut portions and a plurality of tongue-shaped pieces in which the thermally expandable member is laminated by the cut portions.

In a plan view, a split portion may be formed extending from substantially the center of the radial cut portion to one side end.

A foam may be further laminated on the thermally expandable member.

An adhesive layer may be formed on the surface of the substrate on which the thermally expandable member is laminated.

The thermally expandable member may be laminated on the base material in the area of the tongue-shaped piece, and the thermally expandable member may not be laminated on other portions.

A fixing metal may be disposed on the side of the base material, and the fixing metal may have a fixing portion protruding to the side opposite to the side of the base material of the refractory member.

A fixing metal fitting is arranged on the side of the base material, and the fixing metal fitting is provided in an annular main body portion with a part notched and the main body portion, and protrudes to the opposite side of the base material side of the fireproof member. and a fixing portion, and the notch portion of the body portion may be arranged at the position of the cutout portion.

The plurality of fixing portions may have spring properties, and may adhere to the inner surface of the through-hole or the outer surface of the elongated body by elastic force to temporarily fix the fixing member to the through-hole.

According to the first aspect of the invention, since the base material having the shape retention property and the thermal expansion member are laminated, the above-described gap closing member and the thermal expansion member can be combined simply by attaching the thermal expansion member with the thermal expansion member facing inward. can exhibit both functions. That is, a fireproof structure can be obtained with a simple installation work.

In addition, by forming a split portion formed from the approximate center of the radially cut portion to one side end, the fire-resistant member can be attached to the elongated body by the split portion from the side of the elongated body. Therefore, even after the long body is inserted into the through hole, the fireproof member can be attached.

Further, by further laminating the foam on the thermally expandable member, the foam can follow the outer shape of the elongated body, and the elongated body and the fireproof member can be brought into close contact with each other to close the gap.

In addition, an adhesive layer may be formed on the surface of the base material on which the thermally expansive member is laminated (that is, the surface of the thermally expansible member or the surface of the foam when the foam is arranged). , the refractory member can be attached by sticking to the compartment.

In addition, by making sure that the thermally expansive member is laminated only on the base material in the range of the tongue-shaped piece and is not laminated on other parts, the long body can be reliably destroyed by fire. The hole can be closed with the thermal expansion member, and the thermal expansion member used in a portion where thermal expansion is unnecessary, such as between the fireproof member and the partition, can be reduced. In addition, if thermal expansion occurs between the compartment and the refractory member, the expansion of the thermal expansion member may cause the refractory member to fall off. Dropping can be suppressed.

Further, by using a fixing metal fitting having a fixing portion protruding on the side opposite to the base material side of the fireproof member, the fireproof member can be fixed to the through hole by the fixing metal fitting. Therefore, it is easy to fix the fireproof member.

At this time, if the refractory member has a cutout, by aligning the notch of the fixture with the cutout, the refractory member can be inserted from the side of the elongated body even with the fixture. can be done.

Further, if the fixing portion has spring properties, it is possible to temporarily fix the fixing member to the through hole by bringing the fixing portion into close contact with the inner surface of the through hole or the outer surface of the elongated body by elastic force. Therefore, the installation of the fireproof member is completed only by inserting the fixing portion into the through hole, and the work is easy.

A second invention is a fireproof structure using the fireproof member according to the first invention, comprising: a through hole formed in a partition; and the fireproof member fixed to the partition around the through hole a long body inserted through the through-hole and the fire-resistant member; and a noncombustible material filled in the through-hole surrounded by the partition, the long body, and the fire-resistant member. and the tongue-shaped piece is bent so as to come into close contact with the outer peripheral portion of the elongated body.

A second invention is a fireproof structure using the fireproof member according to the first invention, comprising: a through hole formed in a partition; a fire-resistant member, a long body inserted through the through-hole and the fire-resistant member, and an incombustible material filled inside the through-hole surrounded by the partition portion, the long body, and the fire-resistant member; and wherein the fixing member is fixed to the through hole by the fixing portion of the fixing member, and the tongue-shaped piece is bent to be in close contact with the outer peripheral portion of the elongated body. There may be.

The fixing part may be embedded in the incombustible material to fix the fixture to the through hole by an anchor effect.

The fixing member may be fixed to the through hole by inserting the fixing portion from one side of the through hole and engaging with an edge portion on the other side.

The elongated body may be a vinyl chloride pipe.

The refractory member may be secured to the compartment using a securing member.

The refractory member may be fixed to the compartment with an adhesive.

In the fire-resistant member, the heat-expandable member is laminated on the tongue-shaped piece, and the heat-expandable member is arranged between the base material and the elongated body, and the fire-resistant member and the partition are arranged. The thermally expansive member may not be arranged between the portions.

According to the second invention, the base material can reliably receive the noncombustible material, and the thermally expandable member can be arranged together with the base material, so that a fireproof structure can be obtained with a simple installation work. .

In addition, by using the fixture, it is possible to easily attach the fire-resistant member and prevent the fire-resistant member from coming off in the event of a fire.

In particular, by burying the fixed portion of the fixture in the incombustible material, it is possible to reliably prevent the refractory member from coming off due to the anchor effect.

In addition, by hooking the fixing portion of the fixing fitting on the edge portion on the opposite side of the through hole, it is possible to reliably prevent the refractory member from coming off.

In addition, if the long pipe is made of vinyl chloride, even in the event of a fire, the pipe will not be completely destroyed by fire due to its flame retardant properties. can.

Further, if the fire-resistant member is fixed by a fixing member such as a screw, it is possible to reliably prevent the fire-resistant member from coming off.

Also, the fire-resistant member may be fixed with an adhesive, and in this case also falling off of the fire-resistant member can be suppressed.

In addition, by making sure that the thermally expansive member is laminated only on the base material in the range of the tongue-shaped piece and is not laminated on other parts, the long body can be reliably destroyed by fire. The hole can be closed with the thermal expansion member, and the thermal expansion member used in a portion where thermal expansion is unnecessary, such as between the fireproof member and the partition, can be reduced.

ADVANTAGE OF THE INVENTION According to this invention, the fireproof member etc. which were excellent in installation workability can be provided.

1(a) is a plan view showing a fire-resistant member 1, and FIG. 1(b) is a diagram showing a laminated structure of the fire-resistant member 1. FIG. The figure which shows the construction method of fireproof structure. The figure which shows the fireproof structure 20. FIG. (a) is a front view showing the fire prevention structure 20, and (b) is a diagram showing a state in which a noncombustible tape is further attached. The figure which shows the laminated structure of the fireproof member 1a. The figure which shows the fireproof structure 20a. The figure which shows the fireproof structure 20b. (a) is a figure which shows the laminated structure of the fire-resistant member 1c, (b) is a figure which shows the laminated structure of 1 d of fire-resistant members. (a) is a plan view showing the fixture 29; (b) is a side view showing the fixture 29; (a) is a plan view showing a fireproof sheet 37 before attaching a fixture, and (b) is a view showing a fireproof member 1e. The figure which shows the fireproof structure 20c. The figure which shows the fireproof structure 20d.

(First embodiment)
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail. FIG. 1(a) is a plan view showing a fire-resistant member 1 according to the present invention, and FIG. 1(b) is a diagram showing a laminated structure of the fire-resistant member 1. FIG. The fireproof member 1 is mainly composed of a base material 3, a thermally expandable member 5, and the like. The fireproof member 1 has a substantially rectangular shape as a whole. In addition, the shape of the fire-resistant member 1 is not specifically limited.

The refractory member 1 has a thermally expandable member 5 laminated on one surface of the base material 3 . The base material 3 is, for example, a member having a certain degree of shape retention, such as a sheet of metal such as aluminum or a composite sheet of metallic glass cloth.

The thermally expandable member 5 is composed of a thermally expandable member, a shape retaining material, an inorganic filler, a base resin, and the like. A thermally expansive member expands when heated and increases its volume to cover areas that have been burned away by flames or heat of a fire. Examples include thermally expandable graphite, vermiculite, and thermally expandable microcapsules. Applicable. For example, one or more selected from the group consisting of polyphenylene ether, phosphate ester, red phosphorus, and ammonium polyphosphate can be applied as the shape-retaining material. As the inorganic filler, for example, one or more selected from the group consisting of aluminum hydroxide, magnesium hydroxide, talc, clay, calcium carbonate, inorganic balloon, aluminum oxide, magnesium oxide, and silica can be applied. . As the base resin, thermoplastic resin, butyl rubber, polybutadiene rubber, polyurethane, etc. can be applied. The material forming the thermally expandable member 5 is not particularly limited.

In plan view, a plurality of cuts are formed radially. The cut portion 7 is formed in a substantially linear shape from substantially the center of the refractory member 1 to the middle of the side end portion. The cuts 7 form a plurality of tongue-shaped pieces 11 in which the thermally expandable members 5 are laminated.

Further, in a plan view, the cut portion 9 is formed in a substantially straight line from substantially the center of the radial cut portion 7 to one side end. Note that the cut and split portion 9 is not necessarily required, and for example, the cut and split portion 9 in the drawing may be replaced with the cut portion 7 .

Next, a method for constructing a fireproof structure using the fireproof member 1 will be described. FIG. 2 is a diagram showing the construction process of the fireproof structure. For example, a through hole 17 is formed in a partition 13 such as a floor material. The elongated body 15 is inserted through the through hole 17 . The elongated body 15 may be a pipe or a cable, but is preferably a vinyl chloride pipe, for example. The shape of the through-hole 17 and the diameter of the long body 15 are not particularly limited, and are not limited to the illustrated example.

First, the refractory member 1 is attached to the long body 15 by opening the cut portion 9 of the long body 15 . At this time, the tongue-shaped piece 11 can be brought into close contact with the outer peripheral portion of the long body 15 by bending the tongue-shaped piece 11 to one side. That is, the elongated body 15 is inserted into the through hole 17 and the fireproof member 1 .

By providing the cut and split portion 9, the fireproof member 1 can be attached to the long body 15 after the long body 15 is installed. If it is possible, the cut and split part 9 is unnecessary.

The refractory member 1 at the outer peripheral portion of the tongue-shaped piece 11 is fixed to the partition portion 13 around the through hole 17 . A fixing member 19 such as a screw is used for fixing the fireproof member 1 to the partition portion 13 .

As shown in the figure, the fireproof member 1 is arranged so that the base material 3 is on the outer surface side and the thermally expandable member 5 is on the inner surface side. Therefore, the thermally expandable member 5 of the fireproof member 1 is in close contact with the outer surface of the elongated body 15 .

Next, as shown in FIG. 3, the inside of the through hole 17 surrounded by the partition 13, the elongated body 15 and the fireproof member 1 is filled with a noncombustible material 21 such as mortar. As described above, since the base material 3 has a certain degree of shape retention, it functions as a receiver for the noncombustible material 21 so that the noncombustible material 21 does not flow downward even when the noncombustible material 21 is filled.

FIG. 4(a) is a front view of the fireproof member 1 in this state. As described above, the refractory member 1 is provided with the cut-out portion 9 . Therefore, the weight of the incombustible material 21 may cause the cut part 9 to open. In such a case, as shown in FIG. 4(b), a nonflammable tape 23 made of aluminum or the like may be attached so as to straddle the tongue-shaped pieces 11 on both sides of the cut portion 9. As shown in FIG.

When the incombustible material 21 hardens, construction of the fireproof structure 20 is completed. If a fire breaks out in this state, part of the elongated body 15 is destroyed by fire, but the expansion of the thermally expandable member 5 closes the hole formed by the reduction in the volume of the elongated body 15 , leaving the partition 13 open. It is possible to suppress the fire from spreading beyond.

As described above, according to the fire-resistant member 1 according to the first embodiment, the base material 3 having a shape-retaining property serves as a receiver for the incombustible material 21, and the thermally expandable member 5 serves as a fire prevention function. Therefore, there is no need to attach a separate member, and the attachment work is easy. Further, the base material 3 can prevent the fire-resistant member 1 from losing its shape and the thermally expandable member 5 from coming off even in the event of a fire.

Further, by providing the cut and split portion 9, the fireproof member 1 can be attached even after the elongated body 15 is installed.

In addition, by fixing the fire-resistant member 1 to the partition portion 13 with the fixing member 19, it is possible to prevent the fire-resistant member 1 from coming off.

(Second embodiment)
Next, a second embodiment will be described. FIG. 5 is a diagram showing a fireproof member 1a according to the second embodiment. In the following description, the same reference numerals as those in FIGS. 1 to 4 are given to the structures having the same effects as those of the first embodiment, and overlapping descriptions are omitted.

The fire-resistant member 1a has substantially the same structure as the fire-resistant member 1, but differs in that a foam 25 is further laminated on the thermally expandable member 5. FIG. The foam 25 is, for example, a sponge-like member and can be easily elastically deformed. Note that the foam 25 may be combustible.

FIG. 6 shows a fireproof structure 20a using the fireproof member 1a. In this case, foam 25 is positioned on the innermost surface. That is, the foam 25 is in close contact with the elongated body 15 and the like. For example, the elongated body 15 has a circular cross section and a curved outer surface. The foam 25 can be deformed to follow the curved surface of the outer peripheral surface of the long body 15 and the like.

According to the second embodiment, effects similar to those of the first embodiment can be obtained. In addition, by providing the foam 25, it can be deformed to follow the uneven shape of the long body 15 and the partition 13, so that the fireproof member 1a can be more securely attached to the long body 15 and the like. can be made

(Third embodiment)
Next, a third embodiment will be described. FIG. 7 shows a fireproof structure 20b using the fireproof member 1b. The fire-resistant member 1b has substantially the same structure as the fire-resistant member 1, but the arrangement of the thermally expandable member 5 is different.

In this embodiment, the thermally expandable member 5 is laminated on the base material 3 in the region of the tongue 11, and the thermally expandable member 5 is not laminated on other portions. Therefore, in the fireproof structure 20b using the fireproof member 1b, the thermally expandable member 5 is arranged between the base material 3 and the elongated body 15, but between the fireproof member 1 and the partition 13 , the thermally expandable member 5 is not arranged.

As described above, the thermally expandable member 5 does not have to be laminated on the entire surface of the base material 3 and may be laminated on at least a part of the base material 3 . By doing so, the usage amount of the thermally expandable member 5 can be reduced. Moreover, since there is no thermal expansion between the partitioned portion 13 and the base material 3 , it is possible to prevent the base material 3 from falling off from the partitioned portion 13 .

Note that the foam 25 may also be laminated on the fireproof member 1b. In this case, the foam 25 may be arranged over the entire surface of the substrate 3 . By doing so, the tongue-shaped piece 11 has a three-layer structure, and the other portions have a two-layer structure. Further, the foam 25 may also be arranged only on the tongue-shaped piece 11 in the same manner as the thermally expandable member 5 .

According to the third embodiment, effects similar to those of the first embodiment can be obtained. In addition, by arranging the thermally expansive member 5 only on the tongue-shaped piece 11 and not arranging the thermally expansive member 5 on at least part of the other portions, it is possible to reduce the amount of the thermally expansive member 5 used. .

(Fourth embodiment)
Next, a fourth embodiment will be described. Fig.8 (a) is a figure which shows the fireproof member 1c. The fire-resistant member 1 c has substantially the same configuration as the fire-resistant member 1 , but differs in that an adhesive layer 27 is formed on the surface of the thermally expandable member 5 . In addition, when the foam 25 is laminated, the adhesive layer 27 is formed on the surface of the foam 25 like the fireproof member 1d shown in FIG.8(b). That is, the adhesive layer 27 is formed on the surface of the fireproof member on which the thermally expandable member 5 is laminated with respect to the base material 3 . The adhesive layer 27 is made of an adhesive.

According to the fourth embodiment, effects similar to those of the first embodiment can be obtained. Also, the fireproof members 1c and 1d can be fixed to the partition portion 13 with an adhesive. Therefore, it is not necessary to use fixing members 19 such as screws. Also, the tongue-shaped piece 11 can be brought into close contact with the elongated body 15 more reliably.

(Fifth embodiment)
Next, a fifth embodiment will be described. FIG. 9(a) is a plan view showing the fixture 29, and FIG. 9(b) is a side view. The fixing bracket 29 is composed of a substantially C-shaped main body portion 31 in which a part of the ring is notched, a plurality of fixing portions 33 provided on the main body portion 31, and the like. In the illustrated example, the fixing portions 33 are provided at three locations, and are provided so as to protrude from the main body portion 31 in the same direction. Note that the forms of the main body portion 31 and the fixing portion 33 are not limited to the illustrated examples.

FIG. 10(a) is a diagram showing the fireproof sheet 37 before the fixtures 29 are attached. The fireproof sheet 37 has a structure composed of the base material 3, the thermally expandable member 5, and the like, similarly to the fireproof member 1 and the like, but differs in that it has a substantially circular shape and that holes 35 are formed therein. The shape of the fireproof sheet 37 and the fixture 29 may be rectangular corresponding to the shape of the through hole, for example.

FIG. 10(b) is a diagram showing a fireproof member 1e in which a fixing metal fitting 29 is attached to a fireproof sheet 37. FIG. The main body portion 31 of the fixture 29 is arranged on the base material 3 side of the fireproof sheet 37 . The fixing portion 33 of the fixing bracket 29 is inserted into the hole 35 of the fireproof sheet 37 . That is, the fixing portion 33 protrudes to the opposite side of the base material 3 side of the fireproof member 1e. A notch formed in the body portion 31 of the fixing bracket 29 is arranged at the position of the cut portion 9 .

FIG. 11 shows a fireproof structure 20c using fireproof members 1e. As described above, the fireproof sheet 37 has the base material 3 and the thermally expandable member 5 . The fixing bracket 29 is arranged on the side of the base material 3 , and the fixing portion 33 is inserted through the fireproof sheet 37 into the through hole 17 .

Each of the plurality of fixing portions 33 has springiness. In the illustrated example, the fixing portion 33 is bent outward and has an outward spring force. Therefore, when inserted into the through-hole 17 , the plurality of fixing portions 33 are brought into close contact with the inner surface of the through-hole 17 by elastic force, and the fixing bracket 29 can be temporarily fixed to the through-hole 17 . By bending the fixing portion 33 inward and forming a spring force inward, the fixing portion 33 is brought into close contact with the outer surface of the elongated body 15 by elastic force, and the fixing metal fitting 29 is inserted into the through hole 17 . It is also possible to temporarily fix to In addition, if temporary fixation is possible with an adhesive or the like, springiness is not necessarily required.

In this state, the through holes 17 are filled with the noncombustible material 21 and hardened to form the fireproof structure 20c. At this time, since the fixing portion 33 of the fixing metal fitting 29 is bent inside the through hole 17, the fixing metal fitting 29 is fixed by the anchor effect by being embedded in the incombustible material 21 and hardened. That is, the fireproof member 1e can be fixed to the through hole 17. As shown in FIG.

Instead of embedding the fixing portion 33 in the incombustible material 21 and fixing by the anchor effect, the fixing metal fitting 29 may be fixed by another method. FIG. 12 shows a fireproof structure 20d using the fireproof member 1f. In the fireproof member 1f, the fixture 29 is attached to the fireproof sheet 37 in the same manner as in the fireproof member 1e, but the form of the fixing portion 33 is different.

In the refractory member 1f, the fixing portion 33 is bent outward, but does not require springiness. In this embodiment, the fixing portion 33 of the fixing fitting 29 is inserted from one side (lower side in the drawing) of the through hole 17 and is locked to the edge portion on the other side (upper side in the drawing). As described above, the structure of the fixing portion 33 is not particularly limited as long as the fixing metal fitting 29 can be fixed to the through hole 17 .

According to the fifth embodiment, effects similar to those of the first embodiment can be obtained. Moreover, by using the fixing metal fittings 29, the fireproof member can be easily fixed to the through-hole. In addition, the fixture 29 can prevent the fireproof member from coming off.

Although the embodiments of the present invention have been described above with reference to the accompanying drawings, the technical scope of the present invention is not influenced by the above-described embodiments. It is obvious that a person skilled in the art can conceive various modifications or modifications within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. be understood to belong to

For example, it goes without saying that the configurations in each embodiment can be combined with each other.

1, 1a, 1b, 1c, 1d, 1e, 1f …… Fireproof member 3 …… Base material 5 …… Thermal expansion member 7 …… Cut portion 9 …… Cut portion 11 …… Tongue shape Piece 13 Section 15 Elongated body 17 Through hole 19 Fixing members 20, 20a, 20b, 20c, 20d Fire prevention structure 21 Incombustible material 23 Incombustible tape 25 Foam 27 Adhesive layer 29 Fixing bracket 31 Body part 33 Fixing part 35 Hole 37 Fire resistant sheet

Claims (16)

a shape-retaining base material;
a thermally expandable member laminated on at least part of the base material;
and
1. A fire-resistant member comprising a plurality of cuts formed radially in a plan view, and a plurality of tongue-shaped pieces in which the thermally expandable member is laminated by the cuts. 2. The fire-resistant member according to claim 1, further comprising a split portion formed from substantially the center of said radial cut portion to one side end in plan view. 3. The fire-resistant member according to claim 1, wherein the thermally expandable member is further laminated with a foam. 4. The fire-resistant member according to claim 1, wherein an adhesive layer is formed on the surface of the fire-resistant member on which the thermally expandable member is laminated with respect to the base material. . 5. The thermally expansible member is laminated on the base material in the region of the tongue-shaped piece, and the thermally expansible member is not laminated on other portions. The refractory member according to 1. A fixing bracket is arranged on the base material side,
6. The fire-resistant member according to any one of claims 1 to 5, wherein the fixing fitting has a fixing portion protruding to the opposite side of the base material of the fire-resistant member. A fixing bracket is arranged on the base material side,
The fixing bracket has a main body portion having a partially cut-out annular shape, and a fixing portion provided on the main body portion and projecting to the side opposite to the base material side of the refractory member. 3. The fire-resistant member according to claim 2, wherein the notch portion is arranged at the position of the cut portion. The plurality of fixing parts have spring properties, and can be brought into close contact with the inner surface of the through-hole or the outer surface of the elongated body by elastic force, thereby temporarily fixing the fixing fitting to the through-hole. The fire-resistant member according to claim 6 or claim 7. A fireproof structure using the fireproof member according to any one of claims 1 to 8,
a through hole formed in the partition;
the refractory member fixed to the partition around the through hole;
a long body inserted through the through hole and the fireproof member;
a noncombustible material filled inside the through-hole surrounded by the partition, the elongated body, and the fireproof member;
and
A fireproof structure, wherein the tongue-shaped piece is bent to closely contact the outer peripheral portion of the elongated body. A fireproof structure using the fireproof member according to any one of claims 6 to 8,
a through hole formed in the partition;
the refractory member fixed to the partition around the through hole;
a long body inserted through the through hole and the fireproof member;
a noncombustible material filled inside the through-hole surrounded by the partition, the elongated body, and the fireproof member;
and
The fixing bracket is fixed to the through hole by the fixing portion of the fixing bracket,
A fireproof structure, wherein the tongue-shaped piece is bent to closely contact the outer peripheral portion of the elongated body. 11. The fire prevention structure according to claim 10, wherein the fixing part is embedded in the incombustible material so that the fixture is fixed to the through hole by an anchor effect. 10. The fixing member is fixed to the through hole by inserting the fixing part from one side of the through hole and engaging with the edge of the other side of the through hole. Fire protection construction as described. 13. The fire prevention structure according to any one of claims 9 to 12, wherein said elongated body is a pipe made of vinyl chloride. 10. The fireproof structure according to claim 9, wherein the fireproof member is fixed to the partition using a fixing member. 10. The fireproof structure according to claim 9, wherein said fireproof member is fixed to said partition with an adhesive. In the fire-resistant member, the heat-expandable member is laminated on the tongue-shaped piece, and the heat-expandable member is arranged between the base material and the elongated body, and the fire-resistant member and the partition are arranged. 16. The fire prevention structure according to any one of claims 9 to 15, wherein the thermally expansive member is not arranged between the part.

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