JP2023027844A - Fireproof member and fireproof structure - Google Patents
Fireproof member and fireproof structure Download PDFInfo
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- JP2023027844A JP2023027844A JP2021133165A JP2021133165A JP2023027844A JP 2023027844 A JP2023027844 A JP 2023027844A JP 2021133165 A JP2021133165 A JP 2021133165A JP 2021133165 A JP2021133165 A JP 2021133165A JP 2023027844 A JP2023027844 A JP 2023027844A
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- 239000006260 foam Substances 0.000 claims abstract description 187
- 239000011347 resin Substances 0.000 claims abstract description 183
- 229920005989 resin Polymers 0.000 claims abstract description 183
- 239000000463 material Substances 0.000 claims abstract description 22
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 230000009970 fire resistant effect Effects 0.000 claims description 51
- 239000011162 core material Substances 0.000 claims description 30
- 238000005192 partition Methods 0.000 claims description 22
- 230000002093 peripheral effect Effects 0.000 claims description 19
- 238000010030 laminating Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 230000015572 biosynthetic process Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000002184 metal Substances 0.000 description 4
- 239000004570 mortar (masonry) Substances 0.000 description 4
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
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Abstract
Description
本発明は、例えば区画部を貫通する配管等の貫通部に対して耐火性能を確保するための耐火部材等に関するものである。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-resistant member or the like for ensuring fire-resistant performance for penetrating portions such as pipes penetrating through partitioned portions, for example.
建造物等において、区画部で区画された各部屋に配管等が敷設される場合がある。この場合、例えば一方の部屋で火災が発生すると、配管等が貫通する貫通孔を伝って、火災が建造物全体に広がり、甚大な被害をもたらすおそれがある。このため、熱膨張部材を用いて、火災時には貫通孔を熱膨張部材の膨張によって塞ぐ方法が採られている。 2. Description of the Related Art In a building or the like, pipes or the like may be laid in each room partitioned by partitions. In this case, for example, if a fire breaks out in one of the rooms, the fire spreads through the through-holes through which the pipes and the like penetrate, and may cause serious damage. For this reason, a method is adopted in which a thermal expansion member is used and the through hole is closed by expansion of the thermal expansion member in the event of a fire.
例えば、配管の外周面と貫通孔の内周面との隙間にパテやモルタル等の不定形な充填材を使用する方法がある。しかし、パテやモルタル等は取り扱い性が悪いため、現場での施工作業性が悪く、施工に時間がかかるという問題がある。 For example, there is a method of using an irregular filler such as putty or mortar in the gap between the outer peripheral surface of the pipe and the inner peripheral surface of the through hole. However, since putty, mortar, etc. are difficult to handle, there is a problem that workability on site is poor and construction takes a long time.
これに対し、熱膨張部材と目隠しを行うための樹脂発泡体を組み合わせて一体化した耐火部材が提案されている。例えば、内面に凹凸のあるウレタン発泡体が丸められ、ウレタン発泡体の外周部に熱膨張部材が配置され、それらが筒状の本体部に挿入された耐火部材がある（特許文献１）。 On the other hand, a fireproof member has been proposed in which a thermal expansion member and a resin foam for blinding are combined and integrated. For example, there is a fire-resistant member in which a urethane foam having irregularities on the inner surface is rolled, a thermal expansion member is arranged on the outer periphery of the urethane foam, and these members are inserted into a cylindrical main body (Patent Document 1).
しかし、特許文献１のように、樹脂発泡体としてウレタンスポンジを用いると、柔軟であるため、貫通させる長尺体の形状に容易に変形可能であるが、難燃性が十分ではないため、例えば大口径の貫通孔に対しては、火災時に熱膨張部材が膨張する前に焼失してしまう恐れがある。一方、より難燃性の高い樹脂発泡体を用いる方法もあるが、一般的に、難燃性の高い樹脂発泡体は変形性能が低くなるため施工性が悪く、また、長尺体の外形への追従性も低下する。 However, when urethane sponge is used as the resin foam as in Patent Document 1, it is flexible and can be easily deformed into the shape of a long body to be penetrated. A large-diameter through-hole may be destroyed by fire before the thermal expansion member expands. On the other hand, there is also a method using a resin foam with higher flame resistance, but in general, resin foam with high flame resistance has poor workability due to its low deformation performance, and it is difficult to fit the outer shape of a long body. followability is also reduced.
本発明は、このような問題に鑑みてなされたもので、特に、大口径の貫通孔に対しても、十分な耐火性能と施工作業性を両立することが可能な耐火部材等を提供することを目的とする。 The present invention has been made in view of such problems, and in particular, provides a fire-resistant member or the like that can achieve both sufficient fire-resistant performance and construction workability even for large-diameter through holes. With the goal.
前述した目的を達成するため、第１の発明は、区画部に形成された貫通孔と、前記貫通孔に挿入された長尺体との間に配置される耐火部材であって、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材と、を具備し、前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成されることを特徴とする耐火部材である。 In order to achieve the above-described object, a first invention provides a fireproof member disposed between a through hole formed in a partition and an elongated body inserted into the through hole, the resin foam and a thermal expansion member disposed on the outer periphery of the resin foam, wherein the resin foam is formed of a plurality of layers of different materials, and is relatively difficult to insert with respect to the insertion direction of the elongated body. A fire-resistant member characterized by being formed by laminating a first resin foam layer having high flame resistance and resistance to deformation and a second resin foam layer having relatively low flame resistance and resistance to deformation. is.
前記熱膨張部材は、前記第２樹脂発泡体層の外周に配置されることが望ましい。 It is preferable that the thermal expansion member is arranged on the outer circumference of the second resin foam layer.
前記樹脂発泡体の外周に、孔を有する芯材が配置され、前記芯材の少なくとも一部は、前記熱膨張部材で挟み込まれてもよい。 A core material having a hole may be arranged around the outer periphery of the resin foam, and at least part of the core material may be sandwiched between the thermal expansion members.
前記樹脂発泡体の外周に、周方向に所定の間隔で略Ｌ字状の位置決め部材が配置され、前記位置決め部材の端部が、外周側に折り曲げられて、径方向に突出してもよい。 Approximately L-shaped positioning members may be arranged on the outer circumference of the resin foam at predetermined intervals in the circumferential direction, and the end portions of the positioning members may be bent toward the outer circumference and protrude in the radial direction.
前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成されてもよい。 The resin foam has a half-split structure, and a plurality of cuts may be formed from the split portion toward the outer periphery.
正面視において、前記切れ込みは、略平行に複数配置されてもよい。 When viewed from the front, a plurality of the cuts may be arranged substantially parallel to each other.
正面視において、前記割り部は一直線状ではなく、互いの対向面同士が噛み合うように凹凸が形成されてもよい。 When viewed from the front, the split portions may not be straight, but may have unevenness so that the opposing surfaces of the split portions mesh with each other.
第１の発明によれば、モルタルなどを使用することなく、防火構造を得ることができるため、作業性に優れる。特に、樹脂発泡体を複数層に形成し、難燃性が相対的に高く、延焼を抑制する能力の高い第１樹脂発泡体層と、長尺体の外形に追従しやすく施工が容易な第２樹脂発泡体層とを積層することで、長尺体の隙間が生じにくく施工が容易であるとともに、熱膨張部材が膨張するまでの間の延焼防止性能も確保することができる。 According to the first invention, a fireproof structure can be obtained without using mortar or the like, so workability is excellent. In particular, the resin foam is formed in multiple layers, the first resin foam layer is relatively high in flame resistance and has a high ability to suppress the spread of fire, and the second resin foam layer is easy to follow the outer shape of a long body and is easy to install. By laminating the two resin foam layers, it is possible to prevent the formation of gaps in the elongated body, facilitating construction work, and ensuring the performance of preventing the spread of fire until the thermal expansion member expands.
また、相対的に早く焼失する第２樹脂発泡体層の外周に熱膨張部材を配置することで、熱膨張部材が膨張する際には、短時間で熱膨張部材の内部に位置する樹脂発泡体が焼失するため、熱膨張部材の膨張の妨げとなることを抑制することができる。 In addition, by arranging the thermal expansion member on the outer periphery of the second resin foam layer that burns off relatively quickly, when the thermal expansion member expands, the resin foam located inside the thermal expansion member can be removed in a short time. can be suppressed from hindering the expansion of the thermal expansion member.
また、樹脂発泡体の外周に孔を有する芯材を配置することで、樹脂発泡体の形状を保持することができる。また、芯材を熱膨張部材で挟み込むようにすることで、熱膨張部材が膨張した際に、芯材を熱膨張部材の脱落防止部材として機能させることができる。 In addition, the shape of the resin foam can be maintained by arranging a core material having holes on the outer periphery of the resin foam. Further, by sandwiching the core material between the thermal expansion members, the core material can function as a drop-off prevention member for the thermal expansion member when the thermal expansion member expands.
また、樹脂発泡体の外周に、周方向に所定の間隔で略Ｌ字状の位置決め部材を配置することで、貫通孔に設置する際の挿入方向の位置決めが容易であるとともに、脱落を抑制することができる。 In addition, by arranging approximately L-shaped positioning members at predetermined intervals in the circumferential direction around the outer periphery of the resin foam, positioning in the insertion direction when installing in the through-hole is easy, and falling off is suppressed. be able to.
また、樹脂発泡体を半割構造とすることで、長尺体に対する設置が容易である。また、割り部から外周側に向けて、複数の切れ込みを形成することで、貫通孔の中心位置から長尺体の配置がずれているような場合でも、確実に長尺体を設置することができる。また、長尺体の周囲を樹脂発泡体で塞ぐことができる。 Moreover, by making the resin foam into a half-split structure, it is easy to install on a long body. In addition, by forming a plurality of notches from the split portion toward the outer circumference, even when the arrangement of the elongated body is displaced from the center position of the through hole, the elongated body can be securely installed. can. Moreover, the periphery of the elongated body can be closed with the resin foam.
この際、複数の切れ込みを互いに略平行に配置することで、例えば放射状に形成する場合と比較して隙間が形成されにくい。例えば、貫通孔の中心からずれた位置に長尺体を配置する際、切れ込みが放射状であると、切れ込みで区分された樹脂発泡体の中心側の幅が狭くなるため、中央近傍に大きな隙間が形成されやすい。しかし、切れ込みを略平行に形成することで、中央近傍でも、切れ込みで区分された樹脂発泡体の幅が十分あるため、中央近傍に隙間が生じることを抑制することができる。 At this time, by arranging the plurality of notches substantially parallel to each other, gaps are less likely to be formed than when they are formed radially, for example. For example, when a long body is placed at a position deviated from the center of a through-hole, if the cuts are radial, the width of the center side of the resin foam divided by the cuts becomes narrow, resulting in a large gap near the center. easy to form. However, by forming the cuts substantially parallel, the width of the resin foam sectioned by the cuts is sufficient even in the vicinity of the center, so that it is possible to suppress the formation of gaps in the vicinity of the center.
また、割り部の形状を直線状とせずに、対向面同士が噛み合うように凹凸形状とすることで、長尺体の外形や配置に対してより追従性を高めることができる。 In addition, by making the shape of the split part not linear but uneven so that the opposing surfaces are engaged with each other, it is possible to improve the conformability to the outer shape and arrangement of the elongated body.
第２の発明は、区画部に形成された貫通孔と、前記貫通孔に挿通される長尺体と、前記貫通孔と前記長尺体との間に配置される耐火部材と、を具備し、前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記貫通孔に前記耐火部材が配置され、前記長尺体が前記耐火部材を貫通することを特徴とする耐火構造である。 A second invention comprises a through hole formed in a partition, a long body inserted through the through hole, and a fireproof member arranged between the through hole and the long body. , the fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam, the resin foam is formed of a plurality of layers of different materials, and the long body is inserted A first resin foam layer, which has relatively high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated in the direction. The fire-resistant structure is characterized in that the fire-resistant member is arranged in the through-hole, and the elongated body penetrates the fire-resistant member.
前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成され、前記長尺体が、前記耐火部材の前記切れ込みの位置で前記耐火部材を貫通してもよい。 The resin foam has a half-split structure, and a plurality of cuts are formed from the split portion toward the outer peripheral side, and even if the elongated body penetrates the fire-resistant member at the position of the cut of the fire-resistant member. good.
第２の発明によれば、耐火性能と施工性とを両立した耐火構造を得ることができる。特に、長尺体を切れ込みに配置することで、貫通孔における長尺体の配置の自由度が高く、また、複数の長尺体を配置することも容易である。 According to the second invention, it is possible to obtain a fire-resistant structure that achieves both fire-resistant performance and workability. In particular, by arranging the elongated bodies in the slits, the degree of freedom in arranging the elongated bodies in the through holes is high, and it is also easy to arrange a plurality of elongated bodies.
本発明によれば、特に、大口径の貫通孔に対しても、十分な耐火性能と施工作業性を両立することが可能な耐火部材等を提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the fire-resistant member etc. which can satisfy both sufficient fire-resistant performance and construction workability can be provided especially also with respect to a large-diameter through-hole.
以下、本発明の実施の形態を詳細に説明する。図１は、本発明にかかる耐火部材１を示す斜視図であり、図２は断面図である。耐火部材１は、床や壁などの区画部に形成された貫通孔と、貫通孔に挿入された配管やケーブル（以下、単に長尺体と称する場合がある）の間に配置される部材である。 BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 is a perspective view showing a fireproof member 1 according to the present invention, and FIG. 2 is a cross-sectional view. The fireproof member 1 is a member arranged between a through-hole formed in a partition such as a floor or a wall and a pipe or cable (hereinafter sometimes simply referred to as a long body) inserted into the through-hole. .
耐火部材１は、主に、樹脂発泡体３と熱膨張部材５等から構成される。樹脂発泡体３は、全体として略円形であり、全体を横断するように割り部１１を有する半割構造である。なお、長尺体の挿通方向から見た際（以下、正面視）の樹脂発泡体３の形態は略円形には限定されず、貫通孔の形状に対応させて多角形等であってもよい。 The fireproof member 1 is mainly composed of a resin foam 3, a thermal expansion member 5, and the like. The resin foam 3 has a substantially circular shape as a whole and has a half-split structure having a split portion 11 extending across the whole. The shape of the resin foam 3 when viewed from the insertion direction of the elongated body (hereinafter referred to as front view) is not limited to a substantially circular shape, and may be polygonal or the like corresponding to the shape of the through hole. .
また、割り部１１は、正面視において、樹脂発泡体３を２分割するように直線状に形成してもよいが、図示したように、割り部１１を一直線状とせずに、互いの対向面同士が噛み合うように凹凸形状を形成してもよい。すなわち、割り部１１のそれぞれの対向面に凸部と凹部とを繰り返し形成し、割り部１１を閉じることで、対向する互いの凸部と凹部とが互いに噛み合うようにしてもよい。このようにすることで、半割状の樹脂発泡体３同士を容易に一体化することができるとともに、挿通する長尺体の外形が複雑な形状である場合にも、樹脂発泡体３を長尺体２１の外形に追従させやすくなる。 In addition, the split portion 11 may be formed linearly so as to divide the resin foam 3 into two parts in a front view. Concavo-convex shapes may be formed so that they mesh with each other. That is, by repeatedly forming convex portions and concave portions on the opposing surfaces of the split portion 11 and closing the split portion 11 , the opposing convex portions and concave portions may be meshed with each other. By doing so, the halved resin foams 3 can be easily integrated with each other, and even when the elongated body to be inserted has a complicated outer shape, the resin foam 3 can be elongated. It becomes easier to follow the outer shape of the scale body 21. - 特許庁
樹脂発泡体３には、割り部１１から外周側に向けて、複数の切れ込み１３が形成される。正面視において、複数の切れ込み１３は、略平行に所定の間隔で配置される。切れ込み１３には、長尺体を配置することができる。このため、切れ込み１３を形成することで、耐火部材１に対する長尺体の配置の自由度を高めることができる。 A plurality of cuts 13 are formed in the resin foam 3 from the split portion 11 toward the outer peripheral side. When viewed from the front, the plurality of cuts 13 are arranged substantially parallel at predetermined intervals. A long body can be arranged in the notch 13 . Therefore, by forming the slits 13, the degree of freedom in arranging the elongated body with respect to the fireproof member 1 can be increased.
なお、切れ込み１３の間隔は特に限定されないが、例えば２０～２５ｍｍ程度の間隔で、６～１０本程度形成することが望ましい。切れ込み１３が少なすぎると、前述した長尺体の配置の自由度が小さくなる。また、切れ込み１３を多くしすぎると、切れ込み１３で区切られた樹脂発泡体片の幅が狭くなり、個々の樹脂発泡体片のコシが弱くなるため、変形やずれが大きくなる。このため、長尺体を挟み込んだ際に、例えば樹脂発泡体片の先端部近傍（樹脂発泡体３の中央部近傍であって割り部１１側）に隙間が形成されやすくなる。 Although the interval of the cuts 13 is not particularly limited, it is desirable to form about 6 to 10 cuts 13 at intervals of about 20 to 25 mm, for example. If the number of cuts 13 is too small, the degree of freedom in arranging the elongated body described above is reduced. On the other hand, if the number of cuts 13 is too large, the width of the resin foam pieces separated by the cuts 13 will be narrowed, and the stiffness of each resin foam piece will be weakened, resulting in increased deformation and displacement. Therefore, when a long body is sandwiched, for example, a gap is likely to be formed in the vicinity of the tip portion of the resin foam piece (near the central portion of the resin foam 3 and on the split portion 11 side).
なお、切れ込み１３を樹脂発泡体３の中心から放射状に形成する方法もあるが、この方法も、切れ込み１３で区切られた樹脂発泡体片の先端部（樹脂発泡体３の中心近傍）の幅が狭くなり、長尺体を切れ込みに挟み込んだ際に、樹脂発泡体片の先端部近傍に隙間が形成されやすくなる。このため、切れ込み１３は、略平行に形成することが望ましい。 There is also a method in which the cuts 13 are formed radially from the center of the resin foam 3. In this method, too, the width of the tip of the resin foam piece (near the center of the resin foam 3) separated by the cuts 13 is It becomes narrower, and when a long body is sandwiched between the slits, a gap is likely to be formed in the vicinity of the tip portion of the resin foam piece. Therefore, it is desirable that the cuts 13 are formed substantially parallel.
図２に示すように、樹脂発泡体３は、材質の異なる複数層で形成される。図示した例では、樹脂発泡体３は、長尺体の挿入方向（以下、単に厚み方向という場合がある）に対して、第１樹脂発泡体層３ａと第２樹脂発泡体層３ｂとが積層された２層構造である。第１樹脂発泡体層３ａは、相対的に難燃性が高く、変形がしにくい材質で構成され、第２樹脂発泡体層３ｂは、相対的に難燃性が低く、変形がしやすい材質で構成される。 As shown in FIG. 2, the resin foam 3 is formed of multiple layers of different materials. In the illustrated example, the resin foam 3 is formed by laminating a first resin foam layer 3a and a second resin foam layer 3b in the insertion direction of the elongated body (hereinafter sometimes simply referred to as the thickness direction). It has a two-layer structure. The first resin foam layer 3a is made of a material that has relatively high flame resistance and is difficult to deform, and the second resin foam layer 3b is made of a material that has relatively low flame resistance and is easy to deform. consists of
なお、樹脂発泡体の難燃性については、例えば、それぞれの樹脂発泡体の密度と酸素指数で比較評価が可能である。例えば、高密度で酸素指数が大きいものほど難燃性は高く、低密度で酸素指数が小さいものほど難燃性は低い傾向にある。で比較評価が可能である。また、変形のしやすさは、樹脂発泡体へ荷重をかけた際の圧縮変形量で比較評価が可能である。このように、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層３ａとしては、例えばＥＰＤＭ（エチレンプロピレンジエンゴム）発泡体を適用可能であり、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層３ｂとしては、例えばウレタン樹脂発泡体を適用可能である。第１樹脂発泡体層３ａと第２樹脂発泡体層３ｂは、例えば接着によって一体化される。 In addition, about the flame retardancy of the resin foam, for example, the density and oxygen index of each resin foam can be compared and evaluated. For example, the higher the density and the higher the oxygen index, the higher the flame retardancy, and the lower the density and the lower the oxygen index, the lower the flame retardancy. A comparative evaluation is possible with Moreover, the easiness of deformation can be comparatively evaluated by the amount of compressive deformation when a load is applied to the resin foam. Thus, as the first resin foam layer 3a, which has relatively high flame retardancy and is difficult to deform, for example, an EPDM (ethylene propylene diene rubber) foam can be applied. As the second resin foam layer 3b which is low and easily deformable, for example, a urethane resin foam can be applied. The first resin foam layer 3a and the second resin foam layer 3b are integrated, for example, by adhesion.
樹脂発泡体３の外周には、熱膨張部材５が配置される。より詳細には、熱膨張部材５は、第２樹脂発泡体層３ｂの外周に配置される。すなわち、第１樹脂発泡体層３ａの外周面の全体又は少なくとも一部には、熱膨張部材５が配置されない。また、熱膨張部材５の一部は、樹脂発泡体３（第２樹脂発泡体層３ｂ）の表面よりも厚み方向に突出する。すなわち、樹脂発泡体３の厚み方向に対する熱膨張部材５の長さは、第２樹脂発泡体層３ｂの厚みよりも長い。 A thermal expansion member 5 is arranged on the outer periphery of the resin foam 3 . More specifically, the thermal expansion member 5 is arranged on the outer periphery of the second resin foam layer 3b. That is, the thermal expansion member 5 is not arranged on the whole or at least part of the outer peripheral surface of the first resin foam layer 3a. A portion of the thermal expansion member 5 protrudes in the thickness direction from the surface of the resin foam 3 (second resin foam layer 3b). That is, the length of the thermal expansion member 5 with respect to the thickness direction of the resin foam 3 is longer than the thickness of the second resin foam layer 3b.
第１樹脂発泡体層３ａの外周側と、第２樹脂発泡体層３ｂの外周の熱膨張部材５の外周側とを覆うように、芯材１５が配置される。さらに、芯材１５の外周側には、熱膨張部材５が配置される。すなわち、芯材１５の少なくとも一部は、内外面から熱膨張部材５で挟み込まれる。なお、第２樹脂発泡体層３ｂと芯材１５との間には熱膨張部材５が配置されるが、このように樹脂発泡体３と芯材１５間に他の部材がある場合でも、芯材１５は、樹脂発泡体３の「外周」に配置されるものとする。 A core material 15 is arranged so as to cover the outer peripheral side of the first resin foam layer 3a and the outer peripheral side of the thermal expansion member 5 on the outer periphery of the second resin foam layer 3b. Furthermore, the thermal expansion member 5 is arranged on the outer peripheral side of the core material 15 . That is, at least part of the core material 15 is sandwiched between the thermal expansion members 5 from the inner and outer surfaces. Note that the thermal expansion member 5 is arranged between the second resin foam layer 3b and the core material 15, but even if there is another member between the resin foam 3 and the core material 15, It is assumed that the material 15 is arranged on the “periphery” of the resin foam 3 .
芯材１５は、例えば金属線によって構成される網状部材である。すなわち、芯材１５には、内外に貫通する孔が形成される。なお、芯材１５としては、網状部材ではなく、孔を有する板状部材であってもよい。 The core material 15 is a mesh member made of, for example, metal wires. That is, the core material 15 is formed with a hole penetrating inside and outside. Note that the core material 15 may be a plate-like member having holes instead of a net-like member.
芯材１５は、樹脂発泡体３の形状保持と、熱膨張部材５を保持するための部材である。例えば、耐火部材１を貫通孔に挿入する際には、芯材１５の剛性によって、樹脂発泡体３が過剰に変形することなく、挿入作業性を向上させることができる。また、芯材１５の孔によって、内外の熱膨張部材５が膨張する際の妨げとなることを抑制し、膨張後の熱膨張部材５と一体化するため、熱膨張部材５の脱落を抑制することができる。 The core material 15 is a member for retaining the shape of the resin foam 3 and retaining the thermal expansion member 5 . For example, when inserting the refractory member 1 into the through-hole, the rigidity of the core material 15 prevents the resin foam 3 from being excessively deformed, thereby improving insertion workability. In addition, the hole of the core material 15 prevents the inner and outer thermal expansion members 5 from becoming a hindrance when expanding, and since the thermal expansion member 5 is integrated with the expanded thermal expansion member 5, the thermal expansion member 5 is prevented from coming off. be able to.
また、芯材１５の外周（樹脂発泡体３の外周）には、周方向に所定の間隔で、複数の位置決め部材７が配置される。位置決め部材７は、略Ｌ字状の部材であり、位置決め部材７の端部（第１樹脂発泡体層３ａ側の端部）が、外周側に折り曲げられて、樹脂発泡体３の外周側の径方向に突出する。 A plurality of positioning members 7 are arranged at predetermined intervals in the circumferential direction on the outer circumference of the core material 15 (the outer circumference of the resin foam 3). The positioning member 7 is a substantially L-shaped member, and the end portion of the positioning member 7 (the end portion on the side of the first resin foam layer 3a) is bent toward the outer peripheral side so that the outer peripheral side of the resin foam 3 is bent. Protrude radially.
なお、前述したように、芯材１５は、樹脂発泡体３（第２樹脂発泡体層３ｂ）の外周側において、熱膨張部材５によって挟み込まれるが、位置決め部材７が配置される部位では、芯材１５とともに位置決め部材７も、熱膨張部材５で挟み込まれる。 As described above, the core material 15 is sandwiched between the thermal expansion members 5 on the outer peripheral side of the resin foam 3 (second resin foam layer 3b). The positioning member 7 is also sandwiched between the thermal expansion members 5 together with the material 15 .
また、熱膨張部材５が配置されていない部位における樹脂発泡体３（第１樹脂発泡体層３ａ）においては、位置決め部材７（芯材１５）の外周側に被覆体９が配置される。なお、被覆体９の材質は特に限定されないが、例えば、第１樹脂発泡体層３ａと同一の材質で構成される。 In addition, in the resin foam 3 (first resin foam layer 3a) in the portion where the thermal expansion member 5 is not arranged, the covering 9 is arranged on the outer peripheral side of the positioning member 7 (core material 15). Although the material of the cover 9 is not particularly limited, it is made of the same material as the first resin foam layer 3a, for example.
このように、芯材１５及び位置決め部材７（Ｌ字状に折り曲げられた部位除く）は、被覆体９又は熱膨張部材５で覆われる。このため、樹脂発泡体３の外周面には芯材１５等が露出しない。したがって、芯材１５が、例えば金属線などからなる部材であっても、耐火部材１の取り扱い時に、芯材１５を構成する金属部材の先端が他の部材に引っかかることがない。また、作業者が、作業中に誤って金属部材の端部に触れることを抑制することができるため安全である。また、耐火部材１を貫通孔に挿入する際に、区画部等を傷つけることを抑制することができる。 Thus, the core member 15 and the positioning member 7 (excluding the L-shaped bent portion) are covered with the cover 9 or the thermal expansion member 5 . Therefore, the core material 15 and the like are not exposed on the outer peripheral surface of the resin foam 3 . Therefore, even if the core material 15 is a member made of, for example, a metal wire, the tip of the metal member constituting the core material 15 will not get caught on other members when the fireproof member 1 is handled. In addition, it is safe because the worker can be prevented from accidentally touching the end of the metal member during work. Moreover, when inserting the fire-resistant member 1 into a through-hole, it can suppress damaging a division part.
なお、図１に示すように、被覆体９及び熱膨張部材５を、割り部１１を除き全周に配置することで、樹脂発泡体３が完全に二つの半割部材に分離せずに、一部を連結することができる。このため取り扱いが容易である。なお、被覆体９及び熱膨張部材５を、半割りした樹脂発泡体３の外周にそれぞれ別々に配置することで、耐火部材１を、完全に半割状に分離してもよい。 In addition, as shown in FIG. 1, by arranging the cover 9 and the thermal expansion member 5 around the entire circumference except for the split portion 11, the resin foam 3 is not completely separated into two half-split members. A part can be concatenated. Therefore, it is easy to handle. The fireproof member 1 may be completely separated into halves by separately arranging the covering 9 and the thermal expansion member 5 on the outer periphery of the resin foam 3 halved.
次に、耐火部材１を用いた耐火構造の施工方法について説明する。図３～図４は、耐火構造の施工工程を示す図である。ここで、以下の説明では、区画部１７が床である例を示す。なお、本発明において、床とは、階下から見た場合において天井となるものも含む。 Next, a method for constructing a fire-resistant structure using the fire-resistant member 1 will be described. 3 and 4 are diagrams showing the construction process of the fireproof structure. Here, in the following description, an example in which the partition section 17 is the floor will be shown. In addition, in the present invention, the floor also includes the ceiling when viewed from downstairs.
図３（ａ）は平面図、図３（ｂ）は、図３（ａ）のＡ－Ａ線断面図である。区画部１７には貫通孔１９が形成される。まず、区画部１７に形成された貫通孔１９に、長尺体２１を挿通する。 FIG. 3(a) is a plan view, and FIG. 3(b) is a sectional view taken along the line AA of FIG. 3(a). A through hole 19 is formed in the partition portion 17 . First, the elongated body 21 is inserted through the through hole 19 formed in the partition portion 17 .
次に、貫通孔１９と長尺体２１との間に耐火部材１を配置する。図４（ａ）、図４（ｂ）は、図３（ａ）、図３（ｂ）に対応する耐火構造２３を示す図である。耐火部材１は半割状であるため、長尺体２１の側方から耐火部材１を長尺体２１の外周に取り付けることができる。この状態で、床上から耐火部材１を貫通孔１９へスライドさせることで、長尺体２１が耐火部材１を貫通した状態で、耐火部材１を貫通孔１９へ配置することができる。すなわち、耐火部材１を用いた耐火構造２３を得ることができる。 Next, the fireproof member 1 is arranged between the through hole 19 and the elongated body 21 . FIGS. 4(a) and 4(b) are diagrams showing the fireproof structure 23 corresponding to FIGS. 3(a) and 3(b). Since the fire-resistant member 1 is split in half, the fire-resistant member 1 can be attached to the outer periphery of the elongated body 21 from the side of the elongated body 21 . In this state, by sliding the fire-resistant member 1 from the floor to the through-hole 19 , the fire-resistant member 1 can be arranged in the through-hole 19 with the elongated body 21 passing through the fire-resistant member 1 . That is, the fireproof structure 23 using the fireproof member 1 can be obtained.
この際、位置決め部材７が、区画部１７の表面（床上）に当接するまで耐火部材１を貫通孔１９に挿入することで、耐火部材１の位置決めが容易であるとともに、耐火部材１の脱落を抑制することができる。また、樹脂発泡体３の弾性変形によって、耐火部材１を貫通孔１９の内面と長尺体２１の外面に密着させることができる。 At this time, by inserting the fire-resistant member 1 into the through hole 19 until the positioning member 7 abuts on the surface (on the floor) of the partition 17, the positioning of the fire-resistant member 1 is facilitated and the falling off of the fire-resistant member 1 is prevented. can be suppressed. In addition, the elastic deformation of the resin foam 3 allows the fireproof member 1 to adhere to the inner surface of the through-hole 19 and the outer surface of the elongated body 21 .
ここで、耐火構造２３は、区画部１７の外面側（床上）に、第１樹脂発泡体層３ａが露出する。第１樹脂発泡体層３ａは、第２樹脂発泡体層３ｂと比較して、相対的に難燃性が高いため、床上の空間で火災が発生した際に、すぐに焼失してしまうことを抑制することができる。例えば、大口径（例えば１２５φ以上）の貫通孔１９に適用しようとすると、熱膨張部材５が完全に膨張するまでの間に、樹脂発泡体３の全てが焼失すると、延焼を防ぐことが困難となるが、第１樹脂発泡体層３ａによって、延焼を抑制することができる。 Here, in the fireproof structure 23, the first resin foam layer 3a is exposed on the outer surface side (above the floor) of the partition section 17. As shown in FIG. Since the first resin foam layer 3a has relatively high flame retardancy compared to the second resin foam layer 3b, it is expected that the first resin foam layer 3a will burn down immediately when a fire breaks out in the space above the floor. can be suppressed. For example, when it is applied to a through hole 19 having a large diameter (for example, 125φ or more), it is difficult to prevent the spread of fire if the entire resin foam 3 is burned out before the thermal expansion member 5 is completely expanded. However, the spread of fire can be suppressed by the first resin foam layer 3a.
一方、一般的に、難燃性を高くしようとすると、柔軟性が低下する場合が多く、また、高価な場合が多いため、第１樹脂発泡体層３ａのみで樹脂発泡体３を構成すると、コスト増や施工作業性の低下の恐れがある。これに対し、第２樹脂発泡体層３ｂは、第１樹脂発泡体層３ａと比較して、相対的に柔軟であり変形しやすいため、全体を第１樹脂発泡体層３ａで構成するよりも、施工性が高く、確実に長尺体２１の外面に密着して、隙間の形成を抑制することができる。 On the other hand, in general, if an attempt is made to increase the flame retardancy, the flexibility often decreases and the cost is often high. There is a risk of cost increase and deterioration of construction workability. On the other hand, since the second resin foam layer 3b is relatively flexible and deformable compared to the first resin foam layer 3a, it is more flexible than the first resin foam layer 3a. , the workability is high, and it is possible to reliably adhere to the outer surface of the long body 21 and suppress the formation of gaps.
なお、区画部１７の他方の側（床下）で火災が発生した際には、熱が上方に向かうため、床上に延焼しやすいが、熱源側の第２樹脂発泡体層３ｂが直ちに焼失するため、熱膨張部材５の中心方向（長尺体２１方向）への膨張の妨げとなることがなく、熱膨張部材５の膨張によって、より確実に貫通孔１９を塞ぐことができる。この際、熱膨張部材５が膨張するまでの間には、第１樹脂発泡体層３ａの難燃性により、延焼を抑制することができる。 When a fire breaks out on the other side (under the floor) of the partition 17, the heat is directed upward, and the fire tends to spread over the floor. , expansion of the thermal expansion member 5 toward the center (direction of the elongated body 21) is not hindered, and the expansion of the thermal expansion member 5 can more reliably close the through hole 19. FIG. At this time, the flame retardancy of the first resin foam layer 3a can suppress the spread of fire until the thermal expansion member 5 expands.
以上説明したように、本実施形態にかかる耐火部材１によれば、貫通孔１９に取り付けた際に、耐火部材１を区画部１７の内面及び長尺体２１の外面に密着させることができる。このため、隙間の形成を抑制して、貫通孔１９を確実に塞ぐことができる。 As described above, according to the fire-resistant member 1 according to the present embodiment, the fire-resistant member 1 can be brought into close contact with the inner surface of the partition portion 17 and the outer surface of the elongated body 21 when attached to the through hole 19 . Therefore, formation of a gap can be suppressed, and the through hole 19 can be reliably closed.
また、樹脂発泡体３を２層構造として、相対的に難燃性の高い第１樹脂発泡体層３ａによって、樹脂発泡体３の難燃性を向上させるとともに、相対的に柔軟性の高い第２樹脂発泡体層３ｂによって、隙間の発生や、長尺体２１の外周部への取り付け作業性を向上させることができる。 In addition, the resin foam 3 has a two-layer structure, and the first resin foam layer 3a, which has relatively high flame resistance, improves the flame resistance of the resin foam 3, and the second resin foam, which has relatively high flexibility. The 2-resin foam layer 3b can improve the creation of gaps and the workability of attaching the elongated body 21 to the outer peripheral portion.
また、第２樹脂発泡体層３ｂの外周部に熱膨張部材５を配置することで、火災時に、第２樹脂発泡体層３ｂがより早く焼失するため、熱膨張部材５の膨張の妨げとなることを抑制することができる。 In addition, by arranging the thermal expansion member 5 on the outer peripheral portion of the second resin foam layer 3b, the second resin foam layer 3b is burned out more quickly in the event of a fire, which hinders the expansion of the thermal expansion member 5. can be suppressed.
また、樹脂発泡体３に割り部１１を設けることで、取り付け作業が容易であるとともに、割り部１１を対向面側に互いに嵌合する凹凸形状とすることで、半割状の樹脂発泡体３を組み合わせるのが容易であるとともに、長尺体２１の外形に応じて追従させることが容易となり、隙間の形成を抑制することができる。 In addition, by providing the split portion 11 in the resin foam 3, the installation work is easy, and by forming the split portion 11 into a concave-convex shape that fits each other on the opposing surface side, the resin foam 3 can be divided into halves. are easily combined with each other, and it becomes easy to follow the contour of the elongated body 21, thereby suppressing the formation of gaps.
なお、長尺体２１が貫通孔１９の略中心に位置する場合だけではなく、長尺体２１が貫通孔１９の中心からずれた位置に配置される場合や、複数の長尺体２１が配置されるような場合もある。このような場合には、長尺体２１を切れ込み１３の位置で耐火部材１を貫通するように配置すればよい。 It should be noted that not only when the long body 21 is positioned substantially at the center of the through hole 19, but also when the long body 21 is arranged at a position deviated from the center of the through hole 19, or when a plurality of long bodies 21 are arranged. There are also cases where it is done. In such a case, the elongated body 21 should be arranged so as to penetrate the fireproof member 1 at the position of the notch 13 .
図５は、長尺体２１を貫通孔１９（耐火部材１）の中心からずれた位置に配置した耐火構造２３を示す図である。なお、図示した例では、複数の長尺体２１が配置された例を示すが、１本の長尺体２１であっても同様である。 FIG. 5 is a diagram showing a fireproof structure 23 in which the elongated body 21 is arranged at a position shifted from the center of the through hole 19 (fireproof member 1). In addition, although the illustrated example shows an example in which a plurality of elongated bodies 21 are arranged, the same applies to one elongated body 21 .
前述したように、切れ込み１３は、互いに略平行に形成される。このため、例えば、外周に行くにつれて切れ込みの間隔が広くなるように放射状に切れ込み１３を形成する場合と比較して、耐火部材１の外周部近傍への配置の自由度が高い。また、放射状の切れ込みでは、切れ込みで区分された樹脂発泡体片の中心側の幅が狭くなるため、中央近傍に大きな隙間が形成されやすい。しかし、切れ込み１３を略平行に形成することで、中央近傍でも、切れ込み１３で区分された樹脂発泡体片の幅が十分であるため、中央近傍に隙間が生じることを抑制することができる。 As described above, the cuts 13 are formed substantially parallel to each other. Therefore, for example, compared to the case where the cuts 13 are formed radially so that the intervals between the cuts become wider toward the outer circumference, the degree of freedom in arranging the refractory member 1 near the outer circumference is high. In addition, in the case of radial cuts, the width of the center side of the resin foam pieces divided by the cuts is narrow, so a large gap is likely to be formed in the vicinity of the center. However, by forming the cuts 13 substantially parallel, the width of the resin foam piece divided by the cuts 13 is sufficient even near the center, so it is possible to suppress the formation of gaps near the center.
以上、添付図を参照しながら、本発明の実施の形態を説明したが、本発明の技術的範囲は、前述した実施の形態に左右されない。当業者であれば、特許請求の範囲に記載された技術的思想の範疇内において各種の変更例または修正例に想到し得ることは明らかであり、それらについても当然に本発明の技術的範囲に属するものと了解される。 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
例えば、区画部１７は、床ではなく壁であってもよい。この場合には、壁の両側からそれぞれ耐火部材１を挿入してもよい。 For example, partition 17 may be a wall instead of a floor. In this case, fireproof members 1 may be inserted from both sides of the wall.
１………耐火部材
３………樹脂発泡体
３ａ………第１樹脂発泡体層
３ｂ………第２樹脂発泡体層
５………熱膨張部材
７………位置決め部材
９………被覆体
１１………割り部
１３………切れ込み
１５………芯材
１７………区画部
１９………貫通孔
２１………長尺体
２３………防火構造
Reference Signs List 1 …… Fireproof member 3 …… Resin foam 3 a …… First resin foam layer 3 b …… Second resin foam layer 5 …… Thermal expansion member 7 …… Positioning member 9 …… Covering body 11 Split part 13 Notch 15 Core material 17 Partitioning part 19 Through hole 21 Elongated body 23 Fireproof structure
前述した目的を達成するため、第１の発明は、区画部に形成された貫通孔と、前記貫通孔に挿入された長尺体との間に配置される耐火部材であって、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材と、を具備し、前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記熱膨張部材は、前記第２樹脂発泡体層の外周に配置されることを特徴とする耐火部材である。 In order to achieve the above-described object, a first invention provides a fireproof member disposed between a through hole formed in a partition and an elongated body inserted into the through hole, the resin foam and a thermal expansion member disposed on the outer periphery of the resin foam, wherein the resin foam is formed of a plurality of layers of different materials, and is relatively difficult to insert with respect to the insertion direction of the elongated body. A first resin foam layer, which has high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform , are laminated to form the thermal expansion member. It is a fireproof member that is arranged on the outer periphery of the second resin foam layer .
第２の発明は、区画部に形成された貫通孔と、前記貫通孔に挿入された長尺体との間に配置される耐火部材であって、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材と、を具備し、前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体の外周に、孔を有する芯材が配置され、前記芯材の少なくとも一部は、前記熱膨張部材で挟み込まれることを特徴とする耐火部材である。 A second invention is a fireproof member disposed between a through hole formed in a partition and an elongated body inserted into the through hole, comprising a resin foam and an outer circumference of the resin foam and a thermal expansion member arranged in the body, wherein the resin foam is formed of a plurality of layers of different materials, has relatively high flame resistance and is not deformable in the insertion direction of the elongated body A first resin foam layer, which is resistant to fire, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated and formed, and a core material having holes is arranged on the outer periphery of the resin foam. and at least part of the core material is sandwiched between the thermal expansion members.
第３の発明は、区画部に形成された貫通孔と、前記貫通孔に挿入された長尺体との間に配置される耐火部材であって、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材と、を具備し、前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成され、正面視において、前記切れ込みは、略平行に複数配置されることを特徴とする耐火部材である。 A third invention is a fireproof member arranged between a through hole formed in a partition and an elongated body inserted into the through hole, comprising a resin foam and an outer circumference of the resin foam and a thermal expansion member arranged in the body, wherein the resin foam is formed of a plurality of layers of different materials, has relatively high flame resistance and is not deformable in the insertion direction of the elongated body The first resin foam layer, which is resistant to fire, and the second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated and formed, and the resin foam has a half-split structure. The fire-resistant member is characterized in that a plurality of notches are formed toward the side, and the plurality of notches are arranged substantially in parallel when viewed from the front.
第４の発明は、区画部に形成された貫通孔と、前記貫通孔に挿入された長尺体との間に配置される耐火部材であって、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材と、を具備し、前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成され、正面視において、前記割り部は一直線状ではなく、互いの対向面同士が噛み合うように凹凸が形成されることを特徴とする耐火部材である。 A fourth invention is a fireproof member arranged between a through hole formed in a partition and an elongated body inserted into the through hole, comprising a resin foam and an outer periphery of the resin foam and a thermal expansion member arranged in the body, wherein the resin foam is formed of a plurality of layers of different materials, has relatively high flame resistance and is not deformable in the insertion direction of the elongated body The first resin foam layer, which is resistant to fire, and the second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated and formed, and the resin foam has a half-split structure. The fire-resistant member is characterized in that a plurality of cuts are formed toward the sides, and in a front view, the split portions are not straight, but uneven so that opposing surfaces are engaged with each other.
第１－４の発明によれば、モルタルなどを使用することなく、防火構造を得ることができるため、作業性に優れる。特に、樹脂発泡体を複数層に形成し、難燃性が相対的に高く、延焼を抑制する能力の高い第１樹脂発泡体層と、長尺体の外形に追従しやすく施工が容易な第２樹脂発泡体層とを積層することで、長尺体の隙間が生じにくく施工が容易であるとともに、熱膨張部材の膨張するまでの間の延焼防止性能も確保することができる。 According to the 1st to 4th inventions, a fireproof structure can be obtained without using mortar or the like, so workability is excellent. In particular, the resin foam is formed in multiple layers, the first resin foam layer is relatively high in flame resistance and has a high ability to suppress the spread of fire, and the second resin foam layer is easy to follow the outer shape of a long body and is easy to install. By laminating the two resin foam layers, it is possible to prevent the formation of gaps in the elongated body, facilitating construction work, and ensuring the performance of preventing the spread of fire until the thermal expansion member expands.
第５の発明は、区画部に形成された貫通孔と、前記貫通孔に挿通される長尺体と、前記貫通孔と前記長尺体との間に配置される耐火部材と、を具備し、前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記熱膨張部材は、前記第２樹脂発泡体層の外周に配置され、前記貫通孔に前記耐火部材が配置され、前記長尺体が前記耐火部材を貫通することを特徴とする耐火構造である。
第６の発明は、区画部に形成された貫通孔と、前記貫通孔に挿通される長尺体と、前記貫通孔と前記長尺体との間に配置される耐火部材と、を具備し、前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体の外周に、孔を有する芯材が配置され、前記芯材の少なくとも一部は、前記熱膨張部材で挟み込まれ、前記貫通孔に前記耐火部材が配置され、前記長尺体が前記耐火部材を貫通することを特徴とする耐火構造である。
A fifth invention comprises a through hole formed in a partition, a long body inserted through the through hole, and a fireproof member arranged between the through hole and the long body. , the fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam, the resin foam is formed of a plurality of layers of different materials, and the long body is inserted A first resin foam layer, which has relatively high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated in the direction. The fire -resistant structure, wherein the thermal expansion member is arranged on the outer periphery of the second resin foam layer, the fire-resistant member is arranged in the through hole, and the elongated body penetrates the fire-resistant member. is.
A sixth invention comprises a through hole formed in a partition, a long body inserted through the through hole, and a fireproof member arranged between the through hole and the long body. , the fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam, the resin foam is formed of a plurality of layers of different materials, and the long body is inserted A first resin foam layer, which has relatively high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated in the direction. A core material having a hole is arranged around the outer periphery of the resin foam, at least a part of the core material is sandwiched between the thermal expansion members, the fireproof member is arranged in the through hole, and the elongated A refractory structure characterized in that a body passes through the refractory member.
第７の発明は、区画部に形成された貫通孔と、前記貫通孔に挿通される長尺体と、前記貫通孔と前記長尺体との間に配置される耐火部材と、を具備し、前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成され、正面視において、前記切れ込みは、略平行に複数配置され、前記貫通孔に前記耐火部材が配置され、前記長尺体が、前記耐火部材の前記切れ込みの位置で前記耐火部材を貫通することを特徴とする耐火構造である。
第８の発明は、区画部に形成された貫通孔と、前記貫通孔に挿通される長尺体と、前記貫通孔と前記長尺体との間に配置される耐火部材と、を具備し、前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、前記樹脂発泡体は半割構造であり、割り部から外周側に向けて、複数の切れ込みが形成され、正面視において、前記割り部は一直線状ではなく、互いの対向面同士が噛み合うように凹凸が形成され、前記貫通孔に前記耐火部材が配置され、前記長尺体が、前記耐火部材の前記切れ込みの位置で前記耐火部材を貫通することを特徴とする耐火構造である。
A seventh invention comprises a through hole formed in a partition, a long body inserted through the through hole, and a fireproof member arranged between the through hole and the long body. , the fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam, the resin foam is formed of a plurality of layers of different materials, and the long body is inserted A first resin foam layer, which has relatively high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated in the direction. The resin foam has a half-split structure, and a plurality of cuts are formed from the split portion toward the outer peripheral side. The fire-resistant structure is characterized in that a member is arranged, and the elongated body penetrates the fire-resistant member at the position of the cut of the fire-resistant member.
An eighth invention comprises a through hole formed in a partition, a long body inserted through the through hole, and a fireproof member arranged between the through hole and the long body. , the fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam, the resin foam is formed of a plurality of layers of different materials, and the long body is inserted A first resin foam layer, which has relatively high flame resistance and is difficult to deform, and a second resin foam layer, which has relatively low flame resistance and is easy to deform, are laminated in the direction. The resin foam has a half-split structure, and a plurality of cuts are formed from the split portion toward the outer peripheral side, and when viewed from the front, the split portions are not in a straight line, and the opposing surfaces are engaged with each other. and the fire-resistant member is arranged in the through-hole, and the elongated body penetrates the fire-resistant member at the cut position of the fire-resistant member.
第５－８の発明によれば、耐火性能と施工性とを両立した耐火構造を得ることができる。特に、長尺体を切れ込みに配置することで、貫通孔における長尺体の配置の自由度が高く、また、複数の長尺体を配置することも容易である。 According to the 5th to 8th inventions, it is possible to obtain a fireproof structure that achieves both fireproof performance and workability. In particular, by arranging the elongated bodies in the slits, the degree of freedom in arranging the elongated bodies in the through holes is high, and it is also easy to arrange a plurality of elongated bodies.
Claims (9)
樹脂発泡体と、
前記樹脂発泡体の外周に配置される熱膨張部材と、
を具備し、
前記樹脂発泡体が、材質の異なる複数層で形成され、長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成されることを特徴とする耐火部材。 A fireproof member disposed between a through hole formed in a partition and an elongated body inserted into the through hole,
a resin foam;
a thermal expansion member arranged on the outer periphery of the resin foam;
and
The resin foam is formed of a plurality of layers made of different materials. A fire-resistant member characterized by being formed by laminating a second resin foam layer having low flammability and being easily deformable.
前記芯材の少なくとも一部は、前記熱膨張部材で挟み込まれることを特徴とする請求項１又は請求項２記載の耐火部材。 A core material having holes is arranged on the outer periphery of the resin foam,
3. The fire-resistant member according to claim 1, wherein at least part of said core material is sandwiched between said thermal expansion members.
前記位置決め部材の端部が、外周側に折り曲げられて、径方向に突出することを特徴とする請求項１から請求項３のいずれかに記載の耐火部材。 Approximately L-shaped positioning members are arranged on the outer periphery of the resin foam at predetermined intervals in the circumferential direction,
4. The fire-resistant member according to any one of claims 1 to 3, wherein the end portion of the positioning member is bent toward the outer circumference and protrudes radially.
前記貫通孔に挿通される長尺体と、
前記貫通孔と前記長尺体との間に配置される耐火部材と、
を具備し、
前記耐火部材は、樹脂発泡体と、前記樹脂発泡体の外周に配置される熱膨張部材とを有し、
前記樹脂発泡体が、材質の異なる複数層で形成され、前記長尺体の挿入方向に対して、相対的に難燃性が高く、変形がしにくい第１樹脂発泡体層と、相対的に難燃性が低く、変形がしやすい第２樹脂発泡体層が積層されて形成され、
前記貫通孔に前記耐火部材が配置され、前記長尺体が前記耐火部材を貫通することを特徴とする耐火構造。 a through hole formed in the partition;
a long body inserted through the through hole;
a fireproof member arranged between the through hole and the elongated body;
and
The fireproof member has a resin foam and a thermal expansion member arranged on the outer periphery of the resin foam,
The resin foam is formed of a plurality of layers of different materials, and has relatively high flame retardancy and is difficult to deform in the insertion direction of the elongated body. The second resin foam layer, which has low flame resistance and is easy to deform, is laminated and formed,
A fire-resistant structure, wherein the fire-resistant member is arranged in the through-hole, and the elongated body penetrates the fire-resistant member.
前記長尺体が、前記耐火部材の前記切れ込みの位置で前記耐火部材を貫通することを特徴とする請求項８記載の耐火構造。 The resin foam has a half-split structure, and a plurality of cuts are formed from the split portion toward the outer peripheral side,
9. The fire-resistant structure according to claim 8, wherein said elongated body penetrates said fire-resistant member at said notch position of said fire-resistant member.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240854A (en) * | 1999-02-18 | 2000-09-08 | Inaba Denki Sangyo Co Ltd | Thermal expansion material for fire protection |
| JP2002010449A (en) * | 2000-06-16 | 2002-01-11 | Furukawa Techno Material Co Ltd | Protecting block and structure against fire for cable penetration part |
| JP2016112345A (en) * | 2014-12-18 | 2016-06-23 | 株式会社古河テクノマテリアル | Fire-proof member, fire-protection structure, structure, and construction method for fire-protection structure |
| JP2017207155A (en) * | 2016-05-19 | 2017-11-24 | 積水化学工業株式会社 | Fire protection material and fire protection structure for partition penetration part |
| JP2019141336A (en) * | 2018-02-21 | 2019-08-29 | 未来工業株式会社 | Fire resistant structure, fire resistant implement and blocking member |
| JP2020074981A (en) * | 2018-11-08 | 2020-05-21 | 古河電気工業株式会社 | Fireproof member and fireproof structure |
| JP2021106661A (en) * | 2019-12-27 | 2021-07-29 | 因幡電機産業株式会社 | Wall penetration hole forming member |
-
2021
- 2021-08-18 JP JP2021133165A patent/JP7097484B1/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000240854A (en) * | 1999-02-18 | 2000-09-08 | Inaba Denki Sangyo Co Ltd | Thermal expansion material for fire protection |
| JP2002010449A (en) * | 2000-06-16 | 2002-01-11 | Furukawa Techno Material Co Ltd | Protecting block and structure against fire for cable penetration part |
| JP2016112345A (en) * | 2014-12-18 | 2016-06-23 | 株式会社古河テクノマテリアル | Fire-proof member, fire-protection structure, structure, and construction method for fire-protection structure |
| JP2017207155A (en) * | 2016-05-19 | 2017-11-24 | 積水化学工業株式会社 | Fire protection material and fire protection structure for partition penetration part |
| JP2019141336A (en) * | 2018-02-21 | 2019-08-29 | 未来工業株式会社 | Fire resistant structure, fire resistant implement and blocking member |
| JP2020074981A (en) * | 2018-11-08 | 2020-05-21 | 古河電気工業株式会社 | Fireproof member and fireproof structure |
| JP2021106661A (en) * | 2019-12-27 | 2021-07-29 | 因幡電機産業株式会社 | Wall penetration hole forming member |
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