JP2022144857A - Fireproof member and fireproof structure - Google Patents

Abstract

To provide a fireproof member or the like capable of coping with even a large deformation of a wall material.SOLUTION: A fireproof member 1 is mainly constituted of a noncombustible material 3 and a thermal expansion member 5 or the like. The noncombustible material 3 is folded, has one folded portion 7 in a substantially center portion, and has a substantial V-shape as a whole. The thermal expansion member 5 is attached so as to be laminated on the noncombustible material 3. The fireproof member 1 is disposed between wall materials 11. The fireproof member 1 is inserted between the wall materials 11 from an outer wall side of the wall material 11. At this time, a fin portion 9 is positioned on a surface of the outer wall side of the wall material 11, and the folded portion 7 is positioned between the wall materials 11 (or at an indoor side of the wall material 11). When a gap between the wall materials 11 becomes large, since the folded portion 7 is opened, at least a part of a gap between the wall materials 11 can be closed. That is, the noncombustible material 3 can follow change of the gap between the wall materials 11 to be deformed.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a fire-resistant member or the like for ensuring fire resistance of joints of wall materials of buildings that require fire resistance or quasi-fire resistance.

The joints of the outer and inner walls of a building are filled with a fire-resistant joint material to protect the building from the heat and flames of a fire in a neighboring house. As a general fire-resistant joint material, there is a method of filling the joint using a sealing material such as a caulking material. At this time, there is a method of using rock wool, ceramic wool, or the like as a backup material.

FIG. 13 is a diagram showing a common wall material. In addition, in FIG. 13, illustration of a joint material (refractory material) is omitted. As shown in FIG. 13(a), a wall member 101 is arranged as an inner wall on the indoor side, and an outer wall 100 is arranged on the outside thereof. Normally, both the outer wall 100 and the wall material 101 have sufficient fire resistance.

Here, when the wall material is made of, for example, ceramic or metal, deformation due to heat in the event of fire is small. For this reason, even if a fire breaks out outside, gaps between the joints are unlikely to occur, and there is no problem even with ordinary fire-resistant joint fillers. However, when a fire breaks out outside, depending on the material of the wall materials, the joints may open wide due to the deformation or shrinkage of the members themselves.

For example, when the wall material is composed of inorganic fiber heat insulating material, resin fiber heat insulating material, resin foam heat insulating material, or gypsum board, as shown in FIG. There is a risk of creating a large gap in the part. For this reason, a general fireproof joint material cannot follow the contraction, and flames and hot air flow into the interior through the gaps, making it impossible to ensure sufficient fireproof performance.

On the other hand, as a fireproof joint material, a method of using a thermal expansion member having a T-shaped cross section and a method of arranging a thermal expansion member around a core material made of thermoplastic resin or thermosetting resin have been proposed. (For example, Patent Literature 1 and Patent Literature 2).

JP 2009-197477 A JP 2008-144393 A

Since the thermal expansion member expands due to the heat generated by the fire, even if the deformation of the outer wall 100 is large to some extent, the gap can be filled. However, it is difficult for the wall material 101 using a material having a large joint opening to sufficiently follow the opening of the joint.

FIG. 14(a) is a diagram showing a state in which the thermal expansion member 103 is arranged in the joint portion of the wall material 101. FIG. By increasing the expansion ratio of the thermal expansion member 103, even if the amount of deformation of the wall material 101 is large, it is possible to secure a volume sufficient to fill the gap in the event of a fire. However, even if the final expansion ratio is sufficient, if the expansion speed of the thermal expansion member 103 is slow, as shown in FIG. cannot be blocked.

On the other hand, if the expansion speed of the thermal expansion member 103 is too fast, expansion will be completed before the deformation of the wall material 101 progresses, as shown in FIG. 14(c). For this reason, if the deformation of the wall material 101 further progresses gradually thereafter, the gap cannot be filled and hot air from the gap cannot be blocked. However, it is difficult to link the deformation speed of the wall material 101 and the expansion speed of the thermal expansion member 103 .

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire-resistant member or the like that can cope with a large deformation of a wall material.

In order to achieve the above object, a first invention provides a fire-resistant member disposed between wall materials, the non-combustible material being deformable following a change in the interval between the wall materials, and the non-combustible material. and a thermal expansion member attached to the non-combustible material, the non-combustible material being bent, and when the space between the wall materials is widened in a state where the non-combustible material is inserted between the wall materials, the non-combustible The fire-resistant member is characterized in that the material is deformed to open the bent portion, and the expansion of the thermal expansion member can close the gaps between the wall materials.

The incombustible material may be arranged on the outer peripheral surface side of the folded fireproof member, and the thermal expansion member may be arranged on the inner peripheral surface side of the folded fireproof member.

An adhesive layer may be provided on the outer surface of the incombustible material.

The size of the noncombustible material may be larger than the size of the thermal expansion member, and the noncombustible material may protrude from both ends of the thermal expansion member.

A release member may be arranged on the surface of the thermal expansion member.

According to the first invention, by combining a flexible and elastically deformable incombustible material with a thermal expansion member, the expansion of the joint can be partly absorbed by the deformation of the incombustible material to form a gap. can be suppressed, and the expansion of the thermal expansion member can more reliably ensure fire resistance. In particular, since the incombustible material is bent, the incombustible material can be deformed more reliably following changes in the gap between the wall materials.

Further, by arranging the thermal expansion member on the inner peripheral surface side of the folded incombustible material, the thermal expansion member can be expanded in the direction in which the folded portion of the incombustible material opens. Therefore, it is easy to control the direction of expansion.

In addition, by forming an adhesive layer on the outer surface of the incombustible material, the fireproof member can be easily fixed to the wall material.

In addition, by making the size of the incombustible material larger than the size of the thermal expansion member so that the incombustible material protrudes from both ends of the thermal expansion member, the fireproof member can be fixed to the wall material using the relevant portion.

In addition, by arranging the release member on the surface of the thermal expansion member, it is possible to suppress the damage of the thermal expansion member during handling and the adhesion of the thermal expansion member to other members, thereby improving the handleability. can be done.

A second invention is a fire-resistant structure using the fire-resistant member according to the first invention, wherein the fire-resistant member is inserted between wall materials.

The noncombustible material may be arranged on the indoor side, and the thermal expansion member may be arranged on the outer wall side.

According to the second aspect of the invention, it is possible to more reliably ensure fire resistance performance for a wall material that undergoes a large amount of change in shape in the event of a fire or the like.

In particular, by arranging the thermal expansion member on the outer wall side, the fireproof performance can be exhibited outside the wall material, and the inflow of heat into the room can be more reliably suppressed.

ADVANTAGE OF THE INVENTION According to this invention, the fireproof member etc. which can respond also to the large deformation|transformation of a wall material can be provided.

(a) is a cross-sectional view of the fire-resistant member 1, (b) is a view showing the fire-resistant structure to which the fire-resistant member 1 is attached, and (c) is a diagram showing the deformation of the wall material 11 and the The figure which shows the state in which the expansion member 5 expanded. (a) is a cross-sectional view of a fire-resistant member 1a, and (b) is a cross-sectional view of a fire-resistant member 1b. Sectional drawing of the fireproof member 1c. (a) is a cross-sectional view of the fire-resistant member 1d, and (b) is a cross-sectional view of the fire-resistant member 1e. (a) is a cross-sectional view of the fire-resistant member 1f, and (b) is a cross-sectional view of the fire-resistant member 1g. (a) is a cross-sectional view of the fire-resistant member 1h, (b) is a view showing the fire-resistant structure to which the fire-resistant member 1h is attached, and (c) is the wall material 11 deformed by heat and The figure which shows the state in which the expansion member 5 expanded. (a) is a diagram showing another fireproof structure to which a fireproof member 1h is attached, and (b) shows a state in which the wall material 11 is deformed by heat and the thermal expansion member 5 is expanded with respect to (a). figure. (a) is a cross-sectional view of a fire-resistant member 1i, and (b) is a cross-sectional view of a fire-resistant member 1j. Sectional drawing of the fireproof member 1k. (a) is a cross-sectional view of the fire-resistant member 1m, (b) is a view showing the fire-resistant structure to which the fire-resistant member 1m is attached, and (c) is a diagram showing the deformation of the wall material 11 due to heat in comparison with (b). The figure which shows the state in which the expansion member 5 expanded. (a) is a front view showing a fireproof structure to which a fireproof member 1o is attached, and (b) is a sectional view taken along the line AA of (a). FIG. 11 shows a state in which the wall material 11 is deformed by heat and the thermal expansion member 5 is expanded by heat, where (a) is a front view and (b) is a cross-sectional view taken along line BB of (a). . (a) is a diagram showing a conventional wall structure, and (b) is a diagram showing a state in which a wall member 101 using a material with a large gap between an outer wall 100 and a joint is contracted with respect to (a). (a) is a diagram showing a state in which a thermal expansion member 103 is arranged between wall members 101, and (b) to (d) are diagrams showing a state when heat is applied.

(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 diagram showing a fire-resistant member 1 according to the present invention. The fireproof member 1 is mainly composed of a noncombustible material 3, a thermal expansion member 5, and the like.

The incombustible material 3 is composed of a flexible sheet-like member, and for example, rock wool, ceramic wool, aluminum glass cloth, metal foil, etc. can be applied. A sheet-like or putty-like one, for example, can be applied to the thermal expansion member 5 . The thermal expansion member 5 is mainly composed of a thermal expansion material, a flame retardant, a shape-destroying agent, an organic binder, an inorganic filler, and the like. A thermal expansion material is a member that expands when heated and increases its volume to close gaps caused by shrinkage, burnout, melting, deformation, etc. due to flames and heat of a fire. Ammonium or the like can be used.

The incombustible material 3 is bent and has one bent portion 7 at a substantially central portion, and has a substantially V shape as a whole. The thermal expansion member 5 is attached so as to be laminated on the incombustible material 3 . At this time, the noncombustible material 3 is folded so that the noncombustible material 3 is arranged on the outer peripheral surface side of the folded fireproof member 1 and the thermal expansion member 5 is arranged on the inner peripheral surface side of the folded fireproof member 1. there is

Both ends of the incombustible material 3 and the thermally expandable member 5 form fins 9 projecting in the direction of separation from each other in a laminated state. In this embodiment, the size of the noncombustible material 3 is larger than the size of the thermal expansion member 5 . Therefore, the noncombustible material 3 protrudes from both ends of the thermal expansion member 5 at the fins 9 .

FIG.1(b) is a figure which shows the fireproof structure using the fireproof member 1. FIG. The refractory member 1 is arranged between wall materials 11 . The wall material 11 may be either an outer wall or an inner wall, but if the deformation amount of the inner wall is larger than that of the outer wall, it is preferably applied to the inner wall.

The fireproof member 1 is inserted between the wall materials 11 from the outer wall side (upper side in the drawing) of the wall materials 11 . At this time, the fin portion 9 is positioned on the surface of the wall material 11 on the outer wall side, and the bent portion 7 is positioned between the wall materials 11 (or on the interior side of the wall material 11). As described above, the noncombustible material 3 protrudes from both sides of the thermal expansion member 5 at the fins 9 . Therefore, the protruding portion of the noncombustible material 3 can be fixed to the wall material 11 with a tucker or the like.

FIG.1(c) is a figure which shows the state where the fire broke out on the outer wall side. The wall material 11 shrinks (deforms) due to heat and the gap increases. At this time, the incombustible material 3 is inserted between the wall materials 11 in a folded state. It is possible to close at least part of the gap. In other words, the incombustible material 3 can be deformed following changes in the spacing between the wall materials 11 . Also, the thermal expansion member 5 expands due to heat. In this way, the incombustible material 3 is bent, and when the interval between the wall materials 11 becomes wide while the fireproof member 1 is inserted between the wall materials 11, the incombustible material 3 is deformed and bent. As the portion 7 opens, the expansion of the thermal expansion member 5 can close the gap between the wall members 11 .

In addition, as described above, the thermal expansion member 5 is arranged on the inner peripheral surface side of the V-shaped incombustible material 3 . Therefore, in the fireproof structure (FIG. 1(b)), the noncombustible material 3 faces the end surface of the wall material 11, and the thermal expansion members 5 face each other on the inner peripheral surface side. Moreover, the fireproof member 1 is inserted between the wall materials 11 from the outer wall side. That is, the incombustible material 3 is arranged on the indoor side, and the thermal expansion member 5 is arranged on the outer wall side.

Therefore, the expansion direction of the thermal expansion member 5 is restricted by the noncombustible material 3 , and the thermal expansion member 5 expands toward the outer wall side with respect to the noncombustible material 3 . A part of the thermal expansion member 5 is arranged on the outer surface side of the wall member 11 in the fin portion 9 . Therefore, the thermal expansion member 5 after expansion can be arranged on the outer surface side of the wall member 11 . By arranging the thermal expansion member 5 closer to the outer wall than the gap between the wall materials 11 in this way, the thermal insulation performance of the thermal expansion member 5 can be ensured more reliably.

According to the first embodiment, by combining the noncombustible material 3 deformable in the parallel direction of the wall materials 11 and the thermal expansion member 5, the noncombustible material 3 can be reliably secured regardless of the deformation speed of the wall materials 11. The deformation of the wall member 11 can be followed. Moreover, thermal insulation can be ensured by the expansion of the thermal expansion member 5 .

In particular, by forming the bent portion 7 in the incombustible material 3, it is possible to follow the large deformation of the wall material 11 more reliably. In addition, by forming the fins 9 at the ends of the fire-resistant member 1, it is easy to position the fire-resistant member 1 when inserting the fire-resistant member 1 into the gap between the wall members 11 from the outer wall side. In addition, since the noncombustible material 3 protrudes from the thermal expansion member 5, the fireproof member 1 can be easily fixed.

(Second embodiment)
Next, a second embodiment will be described. Fig.2 (a) is a figure which shows the fireproof member 1a concerning 2nd Embodiment. In addition, in the following description, the same reference numerals as in FIG. 1 are given to the structures having the same functions as those of the fire-resistant member 1, 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 plurality of bent portions 7 are formed. In the illustrated example, the bent portions 7 are formed at two locations and the cross section is formed in a substantially W shape. By forming the bent portions 7 at a plurality of locations in this way, it is possible to follow a larger deformation.

In addition, like the fireproof member 1b shown in FIG.2(b), the bending part 7 may be three or more. In addition, the folded height of the noncombustible material 3 to be folded back (the height of the upward convex portion between the folded portions 7) is assumed to be substantially the same as the height from the folded portion 7 to the fin portion 9 as in the fire-resistant member 1a. Alternatively, the folded height of the folded incombustible material 3 may be lower than the height from the folded portion 7 to the fin portion 9 as in the case of the fireproof member 1b.

According to the second embodiment, effects similar to those of the first embodiment can be obtained. In addition, by forming a plurality of bent portions 7, it is possible to ensure a length that can be extended in the width direction, so that even greater deformation of the wall material 11 can be followed.

(Third Embodiment)
Next, a third embodiment will be described. Fig.3 (a) is a figure which shows the fireproof member 1c concerning 3rd Embodiment. The fire-resistant member 1c has substantially the same structure as the fire-resistant member 1, but differs in that the bent portion 7 is formed in an arc shape.

The bent portions 7 of the refractory member 1c are formed so as to be wider than the incombustible materials 3 on both sides. That is, the width near the bent portion 7 is formed to be wider than the width between the bent portion 7 and the fin portion 9 .

FIG. 3(b) is a diagram showing a state in which the fireproof member 1c is attached to the wall material 11. FIG. As described above, the refractory member 1c has a wide portion near the bent portion 7 . At this time, the narrow linear portion is sandwiched between the wall materials 11, and the wide portion is arranged so as to protrude to the interior side of the wall material 11 (on the side opposite to the outer wall side where the fins 9 are arranged).

In this case, the outer surface of the noncombustible material 3 (the portion other than the fins 9) may be completely fixed to the end surface of the wall material 11 by adhesion or the like, or the fins 9 alone may be used to attach the fireproof member 1c to the wall material. 11 may be fixed.

According to the third embodiment, effects similar to those of the first embodiment can be obtained. Further, by forming the bent portion 7 in an arc shape and opening the arc portion, it is possible to secure a length extending in the width direction. For this reason, even larger deformation of the wall material 11 can be followed. In addition, by making the vicinity of the bent portion 7 a wide portion and sandwiching the wall member 11 from the inside and outside between the fin portion 9 and the wide portion, the fireproof member 1 can be prevented from coming off.

(Fourth embodiment)
Next, a fourth embodiment will be described. FIG. 4(a) is a diagram showing a fireproof member 1d according to the fourth embodiment. The fire-resistant member 1d has substantially the same structure as the fire-resistant member 1, but the shape of the fin portion 9 is different.

In each of the above-described embodiments, the length in the width direction of the noncombustible material 3 is formed longer than the length in the width direction of the thermal expansion member 5, but they may have the same length as in the case of the fireproof member 1d. In this case, the noncombustible material 3 and the thermal expansion member 5 may be combined and fixed with a tucker or the like at the fins 9, and the back side of the noncombustible material 3 at the fins 9 is fixed to the wall material 11 by adhesion or the like. You may

Furthermore, the widthwise length of the incombustible material 3 may be shorter than the widthwise length of the thermal expansion member 5, as in the fireproof member 1e shown in FIG. 4(b). In the fireproof member 1e, the incombustible material 3 is arranged only in a predetermined range from the bent portion 7, and the fin portion 9 is formed only by the thermal expansion member 5. As shown in FIG.

In this case, the fireproof member 1e may be fixed to the wall material 11 by bonding the surface of the wall material 11 and the fin portion 9 (thermal expansion member 5) by the adhesive force of the thermal expansion member 5. FIG. The fireproof member 1e is arranged so that when the space between the wall materials 11 widens in the event of a fire and the bent portions 7 open accordingly, the incombustible material 3 extends over the entire space between the wall materials 11. Therefore, a part where the incombustible material 3 does not exist is generated in the gap between the wall materials 11 . Even in this case, the fireproof performance can be ensured by closing the portion with the thermal expansion member 5 .

According to the fourth embodiment, effects similar to those of the first embodiment can be obtained. Further, if it is possible to block at least a part of the gap between the wall materials 11 by opening the bent portion 7 when the space between the wall materials 11 becomes wide, the noncombustible material 3 is not necessarily the wall material. 11 do not have to be arranged throughout.

(Fifth embodiment)
Next, a fifth embodiment will be described. Fig.5 (a) is a figure which shows the fireproof member 1f concerning 5th Embodiment. The fireproof member 1f has substantially the same structure as the fireproof member 1e, but the form of the thermal expansion member 5 is different.

In the fireproof member 1f, the thermal expansion member 5 is divided into two and arranged. In the example shown. The thermal expansion member 5 is not formed in the bent portion 7, and the bent portion 7 is composed only of the incombustible material 3. As shown in FIG. That is, the incombustible material 3 and the thermal expansion member 5 are laminated only in a portion between the bent portion 7 and the fin portion 9 .

Although the shape of the noncombustible material 3 is the same as that of the noncombustible material 3 of the fireproof member 1e, it is not limited to this, and the shape of the noncombustible material 3 in each embodiment described above can be combined. For example, like a fireproof member 1g shown in FIG. 5(b), a plurality of bent portions 7 are formed by a noncombustible material 3, and the thermal expansion member 5 is arranged only on a portion thereof (on the outer peripheral surface side of the bent portion 7). You may

In the refractory members 1f and 1g, when a fire occurs, the space between the wall materials 11 widens, and the bent portions 7 open accordingly. Since the thermal expansion member 5 is not arranged in the space between them, there is a portion where only the incombustible material 3 is present. However, when the thermal expansion member 5 expands after the noncombustible material 3 spreads or at the same time, the expansion of the thermal expansion member 5 causes the thermal expansion member 5 to close substantially the entire space between the wall members 11 . Thus, the thermal expansion member 5 does not have to be arranged so as to span the entire space between the wall materials 11 .

According to the fifth embodiment, effects similar to those of the first embodiment can be obtained. Moreover, since the thermal expansion member 5 may be arranged only at a necessary portion, the usage amount of the thermal expansion member 5 can be reduced.

(Sixth embodiment)
Next, a sixth embodiment will be described. Fig.6 (a) is a figure which shows the fireproof member 1h concerning 6th Embodiment. The fireproof member 1h has substantially the same structure as the fireproof member 1, but the arrangement of the incombustible material 3 and the thermal expansion member 5 is reversed.

The fireproof member 1h is bent, and the noncombustible material 3 is arranged on the inner peripheral surface side, and the thermal expansion member 5 is arranged on the outer peripheral surface side. Fins 9 are formed at both ends of the incombustible material 3, and the thermal expansion member 5 is arranged at a portion other than the fins 9. As shown in FIG.

FIG.6(b) is a figure which shows the fireproof structure using the fireproof member 1h. The fire-resistant member 1h is arranged between the wall materials 11 like the fire-resistant members 1 and the like. The fireproof member 1h is inserted between the wall materials 11 from the outer wall side (upper side in the figure) of the wall materials 11 . At this time, the fin portion 9 is positioned on the outer wall side surface of the wall material 11 , and the thermal expansion member 5 is positioned between the wall materials 11 . Since the fin portion 9 of the fire-resistant member 1h is composed only of the noncombustible material 3, the noncombustible material 3 in the fin portion 9 can be fixed to the wall material 11 with a tucker or the like.

FIG.6(c) is a figure which shows the state where the fire broke out on the outer wall side. When the wall material 11 shrinks (deforms) and the gap increases, the noncombustible material 3 closes at least a part of the gap between the wall materials 11 by opening the bent portions 7, and expands the thermal expansion member 5 to It is possible to close the gap between the wall materials 11 .

At this time, the thermal expansion member 5 is arranged on the outer peripheral surface side of the V-shaped incombustible material 3 . Therefore, the thermal expansion member 5 faces the end surface of the wall material 11, and the noncombustible materials 3 face each other on the inner peripheral surface side. That is, the thermal expansion member 5 is arranged on the indoor side, and the incombustible material 3 is arranged on the outer wall side.

Even in this case, the expansion direction of the thermal expansion member 5 is restricted by the noncombustible material 3, and the thermal expansion member 5 expands toward the interior side of the noncombustible material 3. As shown in FIG. By reliably closing the space between the wall members 11 with the thermal expansion member 5 in this manner, the thermal insulation performance of the thermal expansion member 5 can be ensured.

In addition, the fireproof member 1h can also be attached from the indoor side. Fig.7 (a) is a figure which shows the other fireproof structure using the fireproof member 1h. In this embodiment, the fire-resistant member 1h is inserted between the wall materials 11 from the interior side of the wall materials 11 (lower side in the figure). At this time, the fin portion 9 is positioned on the surface of the wall material 11 on the indoor side, and the thermal expansion member 5 is positioned between the wall materials 11 .

FIG. 7(b) is a diagram showing a state in which a fire has broken out on the outer wall side. When the wall material 11 shrinks (deforms) and the gap increases, the noncombustible material 3 closes at least a part of the gap between the wall materials 11 by opening the bent portions 7, and expands the thermal expansion member 5 to It is possible to close the gap between the wall materials 11 .

Even in this case, the expansion direction of the thermal expansion member 5 is restricted by the noncombustible material 3 and expands toward the outer wall side with respect to the noncombustible material 3 . By reliably closing the space between the wall members 11 with the thermal expansion member 5 in this manner, the thermal insulation performance of the thermal expansion member 5 can be ensured.

According to the sixth embodiment, effects similar to those of the first embodiment can be obtained. Further, if the thermal expansion member 5 is arranged on the outer peripheral surface side of the noncombustible material 3, for example, even if the fireproof member 1h is attached from the inside of the wall material 11, the thermal expansion member 5 can be expanded toward the outer wall. can.

(Seventh embodiment)
Next, a seventh embodiment will be described. FIG. 8(a) is a view showing a fireproof member 1i according to the seventh embodiment. The fire-resistant member 1i has substantially the same structure as the fire-resistant member 1, but differs in that a release member 13 is arranged.

A release member 13 is arranged on the surface of the thermal expansion member 5 in the fireproof member 1i. That is, the thermal expansion member 5 is covered with the release member 13 . The release member 13 is, for example, release paper or release film. In general, the thermal expansion member 5 has adhesiveness, so there is a risk that it will stick to other parts during handling. Therefore, by arranging the release member 13, the thermal expansion member 5 can be protected and the handleability can be improved.

Note that the form of laminating the release member 13 on the surface of the thermal expansion member 5 is not limited. For example, like a fireproof member 1j shown in FIG. 8(b), one release member 13 may be arranged between the thermal expansion members 5 which are bent and opposed to each other. Also, the release member 13 may be arranged so as to straddle the thermal expansion member 5 exposed to the fin portion 9 . That is, the release member 13 does not need to have the same shape as the thermal expansion member 5 .

According to the seventh embodiment, effects similar to those of the first embodiment can be obtained. In addition, by using the release member 13, during handling and transportation, the work is performed with the release member 13 attached, and the release member 13 is peeled off immediately before (or after) insertion into the gap between the wall materials 11. refractory members 1i and 1j can be arranged on the wall material 11. Therefore, the handleability is good.

(Eighth embodiment)
Next, an eighth embodiment will be described. FIG. 9 is a diagram showing a fireproof member 1k according to the eighth embodiment. The fire-resistant member 1k has substantially the same structure as the fire-resistant member 1, but differs in that an adhesive layer 15 is further provided.

The adhesive layer 15 is composed of an adhesive material or an adhesive material. The adhesive layer 15 is formed on the entire outer surface of the noncombustible material 3 . For example, the adhesive layer 15 is also formed on the rear side of the fin 9 . The adhesive layer 15 is used for bonding with the wall material 11 . By using the adhesive layer 15 in this way, a separate fixing member or the like is unnecessary.

Note that the adhesive layer 15 may not be arranged on the entire surface of the noncombustible material 3 and may be formed on at least a part of the noncombustible material 3 . For example, by forming the adhesive layer 15 only on the rear surface of the fin 9, the fin 9 can be adhered to the surface of the wall material 11 and the fireproof member 1k can be fixed to the wall material 11. - 特許庁Also, the release member 13 described above may be arranged on the surface of the adhesive layer 15 .

According to the eighth embodiment, effects similar to those of the first embodiment can be obtained. Further, by providing the adhesive layer 15, the work of fixing the fireproof member 1k to the wall material 11 is facilitated.

(Ninth embodiment)
Next, a ninth embodiment will be described. Fig.10 (a) is a figure which shows the fireproof member 1m concerning 9th Embodiment. The fireproof member 1m is different from the embodiments described so far in that the bent portion 7 is not formed in the incombustible material 3 itself.

In this embodiment, the incombustible material 3 is made of elastic and expandable rock wool or ceramic wool. A pair of block-shaped noncombustible materials 3 are used for the fireproof member 1m, and thermal expansion members 5 are provided between the noncombustible materials 3 and on the upper and lower surfaces of the noncombustible materials 3 (surfaces perpendicular to the mutually facing surfaces of the noncombustible materials 3). placed. That is, the thermal expansion member 5 is formed in a substantially H shape, and is arranged so that the incombustible material 3 is fitted into the concave portions on both sides of the thermal expansion member 5 .

FIG.10(b) is a figure which shows the fireproof structure using 1m of fireproof members. The fireproof member 1m is inserted between the wall members 11 by compressing and deforming the incombustible material 3. As shown in FIG. At this time, the end portions of the wall material 11 are arranged so as to fit into the concave portions on both sides of the thermal expansion member 5 . That is, the thermal expansion members 5 are arranged so as to straddle the adjacent wall materials 11 inside and outside the wall materials 11 .

FIG. 10(c) is a diagram showing a state in which a fire has broken out on the outer wall side. When the wall material 11 shrinks (deforms) and the gap increases, the compressed incombustible material 3 returns to its original state. That is, the incombustible material 3 expands following the contraction of the wall materials 11 to close at least a part of the gap between the wall materials 11, and the expansion of the thermal expansion member 5 closes the gap between the wall materials 11. is possible. In this way, the noncombustible material 3 can be compressed to follow the deformation of the wall material 11 by its restoring force.

Note that the thermal expansion member 5 may be substantially T-shaped instead of substantially H-shaped, and may be disposed so as to straddle adjacent wall members 11 on either the inner side or the outer side of the wall member 11 .

According to the ninth embodiment, effects similar to those of the first embodiment can be obtained. Further, instead of opening the bent portion 7 of the incombustible material 3 , expansion and contraction of the incombustible material 3 itself can be used to follow the contraction of the wall material 11 .

(Tenth embodiment)
Next, a tenth embodiment will be described. FIG. 11(a) is a front view of a fire-resistant structure using a fire-resistant member 1o according to the tenth embodiment, and FIG. 11(b) is a sectional view taken along line AA of FIG. 11(a). The fireproof member 1o differs from each of the above-described embodiments in the form of the incombustible material 3 and the mounting method.

The incombustible material 3 has a substantially L-shaped cross-sectional shape in which a part is bent, and a hole 17 is formed in one surface. The hole 17 is a long hole formed in a predetermined range from the end of the surface of the noncombustible material 3 toward the bent portion. A thermal expansion member 5 is arranged on the outer surface side of the surface of the incombustible material 3 different from the surface on which the holes 17 are formed.

The surface of the incombustible material 3 on which the holes 17 are formed is arranged on the outer surface of the wall material 11 , and the surface on which the thermal expansion member 5 is arranged is arranged between the wall materials 11 . At this time, the guide 19 is inserted through the hole 17 . For example, the guide 19 is arranged so as to straddle the plurality of holes 17 and fixed to the surface of the wall material 11 . Moreover, the thermal expansion member 5 is adhered to the end surface of the wall material 11 and the noncombustible material 3 , and the noncombustible material 3 is not adhered to the wall material 11 .

12A and 12B are diagrams showing a state in which a fire has broken out on the outer wall side, FIG. 12A being a front view and FIG. When the wall member 11 shrinks (deforms) and the gap increases, the wall member 11 and the thermal expansion member 5 are not separated because the thermal expansion member 5 is adhered to one wall member 11 . Moreover, since the thermal expansion member 5 and the noncombustible material 3 are adhered to each other, the wall material 11 moves relatively while the noncombustible material 3 and the thermal expansion member 5 are kept in close contact with each other. At this time, the guide 19 moves along the hole 17 .

In addition, since the thermal expansion member 5 expands, the deformation of the noncombustible material 3 and the relative movement with respect to the wall material 11 close at least a part of the gap between the wall materials 11, and the expansion of the thermal expansion member 5 causes It is possible to close the gap between the wall materials 11 . Thus, the deformation of the wall material 11 can be followed by the deformation of the incombustible material 3 and the relative movement with respect to the wall material 11 .

In FIG. 12(b), the size and position of the hole 17 are set so that the gap between the hole 17 and the wall material 11 does not overlap when the incombustible material 3 moves relative to the wall material 11. . For example, the holes 17 are not formed on the bending portion side of the center of the surface of the noncombustible material 3 on which the holes 17 are formed. In this way, when the wall materials 11 are separated from each other, the holes 17 do not overlap with the gaps between the wall materials 11, so that the fireproof performance can be reliably secured.

According to the tenth embodiment, effects similar to those of the first embodiment can be obtained. Thus, the incombustible material 3 may be moved relative to the wall material 11 .

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 is needless to say that the form of each part in each embodiment described above can be combined with each other.

1, 1a, 1b, 1c, 1d, 1e, 1f, 1g, 1h, 1i, 1j, 1k, 1m, 1o Fireproof member 3 Noncombustible material 5 Thermal expansion member 7 Bent portion 9: Fin portion 11: Wall material 13: Release member 15: Adhesive layer 17: Hole 100: Outer wall 101: Wall material 103: Thermal expansion member

Claims (7)

A refractory member disposed between wall materials,
a noncombustible material that can be deformed to follow changes in the spacing between the wall materials;
a thermal expansion member attached to the incombustible material;
and
The incombustible material is bent, and when the space between the wall materials is widened while being inserted between the wall materials, the incombustible material is deformed, the bent portion opens, and the heat is generated. A fire-resistant member characterized in that the gap between the wall materials can be closed by expansion of the expansion member. 2. The fire-resistant member according to claim 1, wherein the incombustible material is arranged on the outer peripheral surface side of the folded fire-resistant member, and the thermal expansion member is arranged on the inner peripheral surface side of the folded fire-resistant member. 3. The fire-resistant member according to claim 2, wherein an adhesive layer is provided on the outer surface of said incombustible material. 4. The fire-resistant member according to any one of claims 1 to 3, wherein the size of the incombustible material is larger than the size of the thermal expansion member, and the incombustible material protrudes from both ends of the thermal expansion member. . 5. The fire-resistant member according to any one of claims 1 to 4, wherein a release member is arranged on the surface of said thermal expansion member. A fire-resistant structure using the fire-resistant member according to any one of claims 1 to 5, wherein the fire-resistant member is inserted between wall materials. 7. The fireproof structure according to claim 6, wherein said incombustible material is arranged inside the room, and said thermal expansion member is arranged on the outer wall side.

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