JP3410270B2 - Fire protection structure for cable penetration - Google Patents
Fire protection structure for cable penetrationInfo
- Publication number
- JP3410270B2 JP3410270B2 JP33851795A JP33851795A JP3410270B2 JP 3410270 B2 JP3410270 B2 JP 3410270B2 JP 33851795 A JP33851795 A JP 33851795A JP 33851795 A JP33851795 A JP 33851795A JP 3410270 B2 JP3410270 B2 JP 3410270B2
- Authority
- JP
- Japan
- Prior art keywords
- cable
- fire
- partition plate
- hole
- refractory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000035515 penetration Effects 0.000 title claims description 14
- 238000005192 partition Methods 0.000 claims description 43
- 230000002265 prevention Effects 0.000 claims description 19
- 239000000945 filler Substances 0.000 claims description 16
- 239000011800 void material Substances 0.000 claims description 2
- 239000000565 sealant Substances 0.000 claims 1
- 230000009970 fire resistant effect Effects 0.000 description 14
- 239000003566 sealing material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000000149 penetrating effect Effects 0.000 description 9
- 230000037431 insertion Effects 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000035939 shock Effects 0.000 description 5
- 230000006399 behavior Effects 0.000 description 4
- 239000011247 coating layer Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 230000001747 exhibiting effect Effects 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011490 mineral wool Substances 0.000 description 2
- 101150096674 C20L gene Proteins 0.000 description 1
- 102220543923 Protocadherin-10_F16L_mutation Human genes 0.000 description 1
- 101100445889 Vaccinia virus (strain Copenhagen) F16L gene Proteins 0.000 description 1
- 101100445891 Vaccinia virus (strain Western Reserve) VACWR055 gene Proteins 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052918 calcium silicate Inorganic materials 0.000 description 1
- 239000000378 calcium silicate Substances 0.000 description 1
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Landscapes
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は、ケーブル貫通部の
防火構造に係わり、特にケーブルまたは複数本のケーブ
ルから成るケーブル群（以下、ケーブルと示す。）が建
築物（建屋）の構造体を貫通する貫通部において、防火
乃至耐火措置がなされた防火構造に関する。
【０００２】
【従来の技術】一般に、発電所や工場、ビルディングな
ど大量の電線、ケーブルが布設される施設では、ケーブ
ルが床や壁を貫通する部分を防火構造とし、建築物に不
慮の火災が発生した場合に、布設されたケーブルを通し
て、一方の防火区画から他方の防火区画へ火災が拡大す
るのを防止している。
【０００３】従来からのケーブル貫通部の防火構造を、
図２に示す。従来の防火構造においては、床や壁のよう
な建築物構造体１に設けられたケーブル貫通孔２の両端
側に、それぞれ耐火仕切板３が配置され、ボルト等（図
示を省略。）により建築物構造体１に取付け固定されて
いる。そして、これらの耐火仕切板３に設けられたケー
ブル挿通孔４を通して、外周に防火塗料を塗布する等の
方法で防火処理がなされたケーブル５が配設され、この
ケーブル５の周りのケーブル貫通孔２内に、ロックウー
ルのような繊維系の耐火充填剤６が密に充填されてい
る。また、耐火仕切板３のケーブル挿通孔４の周りに
は、ケーブル５外周に跨ってパテ状の耐熱シール材７が
塗布充填され、耐火仕切板３とケーブル５との隙間が気
密に封止されている。
【０００４】
【発明が解決しようとする課題】しかしながら、このよ
うなケーブル貫通部の防火構造においては、ケーブル５
が耐熱シール材７により耐火仕切板３に固着され、かつ
耐火仕切板３が建築物構造体１に直接取付け固定されて
いるため、通常の火災に対しては延焼防止効果が高いも
のの、地震時のように建築物構造体１とそれを貫通して
配設されたケーブル５とがそれぞれ別々の震動挙動を行
なう場合には、震動の衝撃により耐熱シール材７の剥
離、脱落や耐火仕切板３の割れ、崩壊等が生じ、ケーブ
ル貫通孔２内の耐火充填剤６が脱落し、延焼防止効果が
著しく低減あるいは消失するという問題があった。
【０００５】本発明はこのような問題を解決するために
なされたもので、地震等の発生時の震動衝撃による構成
部材の崩落を防止し、引き続き発生の予測される火災に
対して高い防火効果を発揮することができるようにした
ケーブル貫通部の防火構造を提供することを目的とす
る。
【０００６】
【課題を解決するための手段】本発明のケーブル貫通部
の防火構造は、建築物構造体のケーブル貫通孔の両端側
に、それぞれ耐火仕切板を、前記貫通孔に挿通されたケ
ーブルに対して十分な間隔を保つように設けるととも
に、前記貫通孔内に前記耐火仕切板と平行に配置された
中間耐火仕切板を耐熱シール材の層を介して前記ケーブ
ルに取着し、かつ前記貫通孔の空隙部に耐火充填剤を充
填してなることを特徴とする。
【０００７】本発明の防火構造においては、ケーブル貫
通孔の両端側でそれぞれ建築物構造体に取付け固定され
た耐火仕切板と、貫通孔に挿通されたケーブルとの間に
十分な間隔が保たれ、耐火仕切板がケーブルと直接接触
しないようになっている。また、このようなケーブルの
貫通部分に別の中間耐火仕切板が取付け固定されるとと
もに、貫通孔の空隙部に耐火充填剤が充填され、充填さ
れた耐火充填剤に中間耐火仕切板が埋設されるようにな
っている。
【０００８】したがって、建築物造体のケーブル貫通孔
がケーブルに取着された中間耐火仕切板および耐火充填
剤により封止され、高い延焼防止効果を発揮するうえ
に、地震等の発生の際に耐火充填剤が震動衝撃を吸収緩
和する機能を果たし、構成部材の崩落が防止される。
【０００９】すなわち、建築物構造体とそれを貫通する
ケーブルとがそれぞれ異なる震動挙動をとった場合で
も、耐火充填剤が震動による衝撃を緩和する働きをする
ので、建築物構造体側の耐火構造すなわち建築物構造体
およびそれに取付けられた耐火仕切板と、ケーブル側の
耐火構造すなわちケーブルおよびそれに取付けられた中
間耐火仕切板とが、それぞれ自由に震動乃至移動するこ
とができる。したがって、これらの耐火構造および構成
部材の崩壊や脱落が防止され、地震に引き続き発生の予
測される火災に対しても、高い延焼防止効果が発揮され
る。
【００１０】
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて説明する。
【００１１】図１は、本発明のケーブル貫通部の防火構
造の一実施例を示す縦断面図である。 図において符号
８は、建築物の床や壁等の構造体９に設けられたケーブ
ル貫通孔を示し、その両端側に、所定の形状に切断加工
が施され、かつ中央に後述するケーブルの外径より十分
大きな内径を有するケーブル挿通孔１０が設けられた耐
火仕切板１１（例えば、せっこう板やケイ酸カルシウム
板）がそれぞれ配置され、ボルトやアンカーボルト等
（図示を省略。）により建築物構造体９に取付けられて
いる。そして、これらの耐火仕切板１１のケーブル挿通
孔１０を通り、ケーブル貫通孔８を貫通してケーブル１
２が配設され、このようなケーブル１２の貫通部分の周
りに、中間耐火仕切板１３がパテ状の耐熱シール材１４
を介して取付けられている。すなわち、ケーブル貫通孔
８内部に位置するケーブル１２の周りには、小サイズの
中間耐火仕切板１３が両端側の耐火仕切板１１と平行に
配置されており、この中間耐火仕切板１３とケーブル１
２との間には、ケーブル１２の外周に跨って耐熱シール
材１４が塗布充填され、隙間が封止されるとともに塗布
充填層を介して中間耐火仕切板１３がケーブル１２に固
着されている。さらに、このような中間耐火仕切板１３
の周りのケーブル貫通孔８内には、ロックウールやガラ
スウールのような繊維系の耐火充填剤１５が密に充填さ
れている。
【００１２】このような構造の防火構造は、例えば以下
に示すようにして施工される。すなわち、まずケーブル
１２の貫通部分の全長に亘って耐熱シール材１４の塗布
層を設けた後、この塗布層を基座にして中間耐火仕切板
１３を、ケーブル貫通孔８内で中間に浮いた状態になる
ように取付ける。そして、この中間耐火仕切板１３とケ
ーブル１２との隙間に耐熱シール材１４を充填し、さら
に耐熱シール材１４を中間耐火仕切板１３に向ってテー
パー状に盛り上げ、固定をより強固なものとする。次い
で、建築物構造体９のケーブル貫通孔８の片側に、耐火
仕切板１１をボルト等により取り付け固定する。そし
て、ケーブル貫通孔８の空隙部に耐火充填材１５を均一
にかつ密に充填した後、その上をもう一方の耐火仕切板
１１で覆い、この耐火仕切板１１を建築物構造体９に取
り付け固定する。
【００１３】このように施工される実施例のケーブル貫
通部の防火構造においては、ケーブル貫通孔８の両端側
にそれぞれ耐火仕切板１１が配置されるとともに、ケー
ブル貫通孔８内でケーブル１２の周りに中間耐火仕切板
１３が配置され、この中間耐火仕切板１３が、耐熱シー
ル材１４の塗布層を介してケーブル１２に固着されてい
る。また、固着された中間耐火仕切板１３の周りのケー
ブル貫通孔１２内に、繊維系の耐火充填剤１５が充填さ
れている。したがって、通常の火災に対して高い延焼防
止効果を発揮し、他の防火区画への火災の拡大が効果的
に防止される。また、ケーブル貫通孔８の両端側でそれ
ぞれ建築物構造体９に取付け固定された耐火仕切板１１
と、そのケーブル挿通孔１０を通って配設されたケーブ
ル１２との間に十分な間隔が保たれており、耐火仕切板
１１とケーブル１２およびその外周に設けられた耐熱シ
ール材１４の塗布層とが直接接することなく、耐火充填
剤１５を介して接触するようになっている。そして、地
震等が発生し建築物構造体９とそれを貫通するケーブル
１２とが異なる震動挙動をとった場合に、耐火充填剤１
５が震動による衝撃を吸収緩和する働きをするので、建
築物構造体９とそれに取付け固定された耐火仕切板１１
とから成る建築物構造体側の耐火構造と、ケーブル１２
とそれに固着された中間耐火仕切板１３とから成るケー
ブル側の耐火構造とが、互いに自由に震動乃至移動する
ことができる。
【００１４】したがって、耐火仕切板１１の屈曲による
破壊や耐熱シール材１４の剥離、脱落のような耐火構成
部材の崩落が防止され、耐火充填剤１５も脱落すること
がないため、地震に引き続き発生の予測される火災に対
しても、高い延焼防止効果が保持される。
【００１５】
【発明の効果】以上の説明から明らかなように、本発明
のケーブル貫通部の防火構造によれば、通常の火災に対
して高い延焼防止効果を有するうえに、地震等が発生し
建築物構造体とケーブルとが異なる震動挙動をとった場
合に、震動衝撃による構造および構成部材等の崩壊、脱
落が防止され、引き続き発生の予測される火災に対して
高い防火効果が発揮される。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire prevention structure for a cable penetrating portion, and more particularly to a cable or a cable group including a plurality of cables (hereinafter, referred to as a cable). The present invention relates to a fire prevention structure in which fire prevention or fire resistance measures have been taken at a penetration portion penetrating a structure of a building (building). 2. Description of the Related Art Generally, in a facility where a large amount of electric wires and cables are laid, such as a power plant, a factory, and a building, a portion where the cable penetrates a floor or a wall is provided with a fire prevention structure, and an unexpected fire occurs in a building. In this case, the spread of the fire from one fire protection section to the other fire protection section is prevented through the laid cable. [0003] The conventional fire prevention structure of the cable penetration part,
As shown in FIG. In the conventional fire prevention structure, fireproof partition plates 3 are arranged at both ends of a cable through hole 2 provided in a building structure 1 such as a floor or a wall, and the building is bolted (not shown). It is attached and fixed to the structure 1. A cable 5 that has been subjected to a fire protection treatment by, for example, applying a fire-resistant paint to the outer periphery is disposed through a cable insertion hole 4 provided in the fire-resistant partition plate 3, and a cable through hole around the cable 5 is provided. 2, a fibrous refractory filler 6 such as rock wool is densely filled. Around the cable insertion hole 4 of the refractory partition plate 3, a putty-like heat-resistant sealing material 7 is applied and filled over the outer periphery of the cable 5, and the gap between the refractory partition plate 3 and the cable 5 is hermetically sealed. ing. [0004] However, in such a fire prevention structure of the cable penetration portion, the cable 5
Is fixed to the fire-resistant partition plate 3 by the heat-resistant sealing material 7, and the fire-resistant partition plate 3 is directly attached and fixed to the building structure 1. Therefore, although the fire spreading effect is high for a normal fire, it is effective in the event of an earthquake. In the case where the building structure 1 and the cable 5 disposed therethrough perform different vibration behaviors as in the above, the vibration-resistant impact causes the heat-resistant seal material 7 to peel off or fall off, or the fire-resistant partition plate 3 Cracking, collapse, etc., and the refractory filler 6 in the cable through-hole 2 falls off, and there is a problem that the effect of preventing fire spread is significantly reduced or lost. SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is intended to prevent collapse of constituent members due to a shock caused by an earthquake at the time of occurrence of an earthquake or the like, and to provide a high fire protection effect against a fire which is expected to continue to occur. It is an object of the present invention to provide a fire prevention structure for a cable penetrating portion capable of exhibiting the following. According to the present invention, there is provided a fireproof structure for a cable penetration portion, wherein a fireproof partition plate is provided at each end of a cable penetration hole of a building structure, and the cable is inserted through the penetration hole. Along with providing a sufficient distance to the, the intermediate fire-resistant partition plate disposed in parallel with the fire-resistant partition plate in the through-hole is attached to the cable via a layer of heat-resistant sealing material , and the It is characterized in that the refractory filler is filled in the voids of the through holes. In the fire prevention structure of the present invention, a sufficient space is maintained between the fireproof partition plate attached and fixed to the building structure at each end of the cable through hole and the cable inserted into the through hole. In addition, the refractory partition does not come into direct contact with the cable. In addition, another intermediate refractory partition plate is attached and fixed to the penetrating portion of such a cable, the refractory filler is filled in the gap of the through hole, and the intermediate refractory partition plate is embedded in the filled refractory filler. It has become so. [0008] Therefore, the cable through-hole of the building structure is sealed with the intermediate refractory partition plate and the refractory filler attached to the cable, thereby exhibiting a high fire-prevention effect, and at the time of occurrence of an earthquake or the like. The refractory filler functions to absorb and mitigate the shock of vibration, thereby preventing component members from collapsing. That is, even when the building structure and the cable penetrating therethrough have different vibration behaviors, the refractory filler acts to reduce the shock due to the vibration, so that the fire-resistant structure on the building structure side, ie, The building structure and the fireproof partition attached thereto and the fireproof structure on the cable side, that is, the cable and the intermediate fireproof partition attached thereto, can freely vibrate or move. Therefore, the fire-resistant structure and the constituent members are prevented from collapsing or falling off, and a high fire spread prevention effect is exerted even on a fire that is expected to occur following an earthquake. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view showing an embodiment of a fire prevention structure for a cable penetration portion of the present invention. In the drawing, reference numeral 8 denotes a cable through hole provided in a structure 9 such as a floor or a wall of a building, and both ends thereof are cut into a predetermined shape, and the outer diameter of a cable described later is provided at the center. A fire-resistant partition plate 11 (for example, a gypsum plate or a calcium silicate plate) provided with a cable insertion hole 10 having a sufficiently larger inner diameter is arranged, and a building structure is formed by bolts, anchor bolts, and the like (not shown). Attached to body 9. Then, the cable 1 passes through the cable insertion hole 10 of the refractory partition plate 11,
2 around the penetrating portion of the cable 12, an intermediate refractory partition plate 13 is putty-shaped heat-resistant sealing material 14.
Mounted through. That is, a small-sized intermediate refractory partition 13 is arranged around the cable 12 located inside the cable through-hole 8 in parallel with the refractory partition 11 on both ends.
A heat-resistant seal material 14 is applied and filled over the outer periphery of the cable 12 to seal the gap, and an intermediate refractory partition plate 13 is fixed to the cable 12 via an applied filling layer. Furthermore, such an intermediate refractory partition 13
The inside of the cable through hole 8 around is filled with a fibrous refractory filler 15 such as rock wool or glass wool. The fire protection structure having such a structure is constructed, for example, as follows. That is, first, a coating layer of the heat-resistant sealing material 14 is provided over the entire length of the penetrating portion of the cable 12, and the intermediate refractory partition plate 13 is floated in the middle of the cable through hole 8 based on the coating layer. Attach so that it is in a state. Then, a gap between the intermediate refractory partition plate 13 and the cable 12 is filled with a heat-resistant sealing material 14, and the heat-resistant sealing material 14 is further tapered toward the intermediate refractory partition plate 13, so that the fixing is further strengthened. . Next, a fireproof partition plate 11 is attached and fixed to one side of the cable through hole 8 of the building structure 9 with bolts or the like. Then, after the refractory filler 15 is uniformly and densely filled in the void portion of the cable through-hole 8, the other portion is covered with another refractory partition plate 11, and the refractory partition plate 11 is attached to the building structure 9. Fix it. In the fire prevention structure of the cable penetration portion of the embodiment constructed as described above, the fire-resistant partition plates 11 are arranged at both ends of the cable penetration hole 8, respectively, and around the cable 12 in the cable penetration hole 8. An intermediate refractory partition 13 is fixed to the cable 12 via a coating layer of a heat-resistant sealing material 14. Further, a fiber-based refractory filler 15 is filled in the cable through-hole 12 around the fixed intermediate refractory partition plate 13. Accordingly, a high fire spread prevention effect is exerted against a normal fire, and the spread of the fire to other fire prevention compartments is effectively prevented. Further, a fire-resistant partition plate 11 attached and fixed to the building structure 9 at both ends of the cable through hole 8 respectively.
And a cable 12 disposed through the cable insertion hole 10, and a sufficient space is maintained between the refractory partition plate 11 and the cable 12 and the coating layer of the heat-resistant sealing material 14 provided on the outer periphery thereof. Are in direct contact with each other via the refractory filler 15. When an earthquake or the like occurs and the building structure 9 and the cable 12 penetrating the building structure 9 take different vibration behaviors, the refractory filler 1
5 functions to absorb and mitigate the shock caused by the vibration, so that the building structure 9 and the fireproof partition plate 11 fixed thereto are fixed.
A fire-resistant structure on the building structure side comprising:
The refractory structure on the cable side, which comprises the intermediate refractory partition plate 13 and the intermediate refractory partition plate 13, can vibrate or move freely with respect to each other. Therefore, collapse of the refractory partitioning plate 11 due to bending and destruction of the refractory components such as peeling and falling off of the heat-resistant sealing material 14 are prevented, and the refractory filler 15 does not fall off. A high fire spread prevention effect is maintained even for a fire expected to occur. As is apparent from the above description, according to the fire prevention structure of the cable penetrating portion of the present invention, it has a high fire-prevention effect against a normal fire, and furthermore, an earthquake or the like occurs. When the building structure and the cable have different vibration behaviors, the collapse and falling off of the structure and components due to the vibration shock are prevented, and a high fire protection effect against the expected fire that continues to occur is exhibited .
【図面の簡単な説明】
【図１】本発明に係わるケーブル貫通部の防火構造の一
実施例を示す縦断面図。
【図２】従来からのケーブル貫通部の防火構造を示す縦
断面図。
【符号の説明】
８………ケーブル貫通孔
９………建築物構造体
１１………耐火仕切板
１２………ケーブル
１３………中間耐火仕切板
１４………耐熱シール材
１５………耐火充填剤BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a longitudinal sectional view showing one embodiment of a fire prevention structure for a cable penetration portion according to the present invention. FIG. 2 is a longitudinal sectional view showing a conventional fire prevention structure for a cable penetration portion. [Description of Signs] 8 ... Cable through hole 9 ... Building structure 11 ... Fireproof partition 12 ... Cable 13 ... Intermediate fireproof partition 14 ... Heat resistant sealing material 15 ... … Fire-resistant filler
フロントページの続き (56)参考文献 特開 昭63−178712（ＪＰ，Ａ) 特開 平５−277202（ＪＰ，Ａ) 実開 昭60−48314（ＪＰ，Ｕ) 実開 平２−20564（ＪＰ，Ｕ) 実開 平１−90568（ＪＰ，Ｕ) 実開 平４−50066（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) H02G 3/22 F16L 5/04 Continued on the front page (56) References JP-A-63-178712 (JP, A) JP-A-5-277202 (JP, A) JP-A-60-48314 (JP, U) JP-A-2-20564 (JP) , U) Japanese Utility Model 1-90568 (JP, U) Japanese Utility Model 4-50066 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) H02G 3/22 F16L 5/04
Claims (1)
に、それぞれ耐火仕切板を、前記貫通孔に挿通されたケ
ーブルに対して十分な間隔を保つように設けるととも
に、前記貫通孔内に前記耐火仕切板と平行に配置された
中間耐火仕切板を耐熱シール材の層を介して前記ケーブ
ルに取着し、かつ前記貫通孔の空隙部に耐火充填剤を充
填してなることを特徴とするケーブル貫通部の防火構
造。(57) [Claims 1] A refractory partition plate is provided at each end of a cable through hole of a building structure so as to keep a sufficient distance from a cable inserted into the through hole. And an intermediate refractory partition plate disposed in the through hole in parallel with the refractory partition plate is attached to the cable via a layer of a heat-resistant sealant , and a refractory filler is filled in a void portion of the through hole. The fire prevention structure of the cable penetration part characterized by filling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33851795A JP3410270B2 (en) | 1995-12-26 | 1995-12-26 | Fire protection structure for cable penetration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33851795A JP3410270B2 (en) | 1995-12-26 | 1995-12-26 | Fire protection structure for cable penetration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09182256A JPH09182256A (en) | 1997-07-11 |
| JP3410270B2 true JP3410270B2 (en) | 2003-05-26 |
Family
ID=18318912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33851795A Expired - Fee Related JP3410270B2 (en) | 1995-12-26 | 1995-12-26 | Fire protection structure for cable penetration |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3410270B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005180608A (en) * | 2003-12-19 | 2005-07-07 | Ask Technica Corp | Thermally expandable linear member and its manufacturing method |
| JP6057068B2 (en) * | 2013-01-15 | 2017-01-11 | 因幡電機産業株式会社 | Through-hole fire prevention structure and fireproof tape used therefor |
| CN114214940B (en) * | 2022-01-25 | 2023-12-08 | 江苏中矿大正表面工程技术有限公司 | A fire-resistant isolation device for suspension bridge steel cables |
-
1995
- 1995-12-26 JP JP33851795A patent/JP3410270B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09182256A (en) | 1997-07-11 |
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| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20030304 |
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| LAPS | Cancellation because of no payment of annual fees |