JP2000240854A - Thermal expansion material for fire protection - Google Patents

Thermal expansion material for fire protection

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Publication number
JP2000240854A
JP2000240854A JP11040186A JP4018699A JP2000240854A JP 2000240854 A JP2000240854 A JP 2000240854A JP 11040186 A JP11040186 A JP 11040186A JP 4018699 A JP4018699 A JP 4018699A JP 2000240854 A JP2000240854 A JP 2000240854A
Authority
JP
Japan
Prior art keywords
heat
thermal expansion
expandable
hole
resistant
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.)
Pending
Application number
JP11040186A
Other languages
Japanese (ja)
Inventor
Koji Kaneda
好司 金田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inaba Denki Sangyo Co Ltd
Original Assignee
Inaba Denki Sangyo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inaba Denki Sangyo Co Ltd filed Critical Inaba Denki Sangyo Co Ltd
Priority to JP11040186A priority Critical patent/JP2000240854A/en
Publication of JP2000240854A publication Critical patent/JP2000240854A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To reduce manufacturing cost by reducing the number of components and processing stages, while widening application range per type with regard to a plurality of types of tube-like bodies having different bores, shapes, and the like, and also simplifying attachment work to the tube-like bodies. SOLUTION: A maintaining means 5 resistance the restoring force of a thermal expansive heat resistant sealing material 4 for maintaining thereof in a wound state is provided on the thermal expansive heat resistant sealing material 4, having a thickness capable of being attached between an inner peripheral face 2a of a through-hole 2 of a fire-control section body 1 and an outer peripheral face of a tube-like body P disposed in the through-hole 2 and having length and flexibility being wound along the outer periphery of the tube-like body P.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、防火区画領域にあ
る防火区画体(例えば、耐火構造の床や壁等の躯体)に
形成された貫通孔を通して、配管類(ポリ塩化ビニル
管、ポリエチレン管等の可燃性の合成樹脂管、電気ケー
ブル等)或いは配管類の一本又は複数本を挿通させる合
成樹脂製の保護管(サヤ管)などの管様体を配設する際
に用いられる防火用熱膨張材に関し、より詳しくは、管
様体の外周面と貫通孔の内周面との間に装着して、火災
発生時の熱による熱膨張によって貫通孔全体を閉塞する
ことにより、該貫通孔を通して火炎や有害ガス等が隣室
側に流入することを防止する防火用熱膨張材の改良に関
する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pipe (polyvinyl chloride pipe, polyethylene pipe, etc.) through a through hole formed in a fire protection compartment (for example, a frame such as a floor or a wall of a fireproof structure) in a fire protection compartment area. Fire protection heat used when arranging a pipe-like body such as a flammable synthetic resin pipe, electric cable, etc.) or a synthetic resin protective pipe (sheath pipe) through which one or more pipes are inserted. More specifically, the expansion material is mounted between the outer peripheral surface of the tubular body and the inner peripheral surface of the through-hole, and the entire through-hole is closed by thermal expansion caused by heat at the time of a fire, thereby forming the through-hole. The present invention relates to an improvement in a thermal expansion material for fire prevention, which prevents a flame, a harmful gas, or the like from flowing into an adjacent room through the heat exchanger.

【0002】[0002]

【従来の技術】火災発生時に、防火区画体に形成された
貫通孔の内周面と管様体の外周面との間を閉塞する方法
として、従来では、図12、図13に示すように、防火
区画体の一例である躯体1の貫通孔2に挿通可能な外径
でほぼ円筒状に折曲げ形成された板金製のカバー体50
のうち、円筒姿勢への折曲げ操作時に重ね合わされる両
端辺部50a,50bの相対向する部位に、直径方向か
ら係合及び係合離脱自在で、かつ、係合状態では、カバ
ー体50をそれの弾性復元力に抗して円筒姿勢に保持す
る係止片51aと係止孔51bとを形成するとともに、
前記カバー体50の内周面に、弧状に成形された熱膨張
性耐熱ブロック52を取付け、更に、前記熱膨張性耐熱
ブロック52の内周面には、管様体の一例である配管類
3の外周面に接触する収縮率の大きいスポンジ状の耐熱
発泡体53を付設してなる防火区画用貫通部材を用いて
いた(例えば、特開平10‐132147号公報参
照)。
2. Description of the Related Art As a method of closing a gap between an inner peripheral surface of a through hole formed in a fire protection compartment and an outer peripheral surface of a tubular body when a fire occurs, conventionally, as shown in FIGS. A sheet metal cover body 50 formed into a substantially cylindrical shape with an outer diameter that can be inserted into the through-hole 2 of the frame 1 as an example of a fire protection compartment.
Of these, the cover body 50 can be engaged and disengaged from the diametrical direction at opposing portions of both end sides 50a and 50b which are overlapped during the bending operation to the cylindrical posture, and in the engaged state. A locking piece 51a and a locking hole 51b for holding the cylindrical posture against the elastic restoring force thereof are formed,
A heat-expandable heat-resistant block 52 formed in an arc shape is attached to the inner peripheral surface of the cover body 50, and the pipes 3, which are an example of a tubular body, are provided on the inner peripheral surface of the heat-expandable heat resistant block 52. (See, for example, Japanese Patent Application Laid-Open No. 10-132147). A sponge-like heat-resistant foam 53 having a large shrinkage ratio and contacting the outer peripheral surface is provided.

【0003】[0003]

【発明が解決しようとする課題】従来の防火区画用貫通
部材による場合は、ほぼ円筒状に折曲げ形成された板金
製のカバー体50と弧状に成形された熱膨張性耐熱ブロ
ック52及び収縮率の大きいスポンジ状の耐熱発泡体5
3との三層構造であり、しかも、板金製のカバー体50
の両端辺部50a,50bには、係合及び係合離脱自在
な係合片51aと係合孔51bとを形成する必要がある
ため、製造コストの高騰化を招来し易い。しかも、配管
の口径、数、形状の変化を耐熱発泡体53の弾性変形の
みで吸収するため、一つの防火区画用貫通部材による吸
収範囲が狭く、その結果、配管類3の口径、数、形状の
種類に対応した多種類の防火区画用貫通部材を準備する
必要があるため、取り扱いが煩雑化するとともに、製造
コストの高騰化を助長する要因になっていた。
In the case of using a conventional through-hole for a fire-prevention section, a cover member 50 made of a sheet metal bent substantially in a cylindrical shape, a heat-expandable heat-resistant block 52 formed in an arc shape, and a shrinkage ratio are used. Large sponge-like heat-resistant foam 5
3 and a cover 50 made of sheet metal.
Since it is necessary to form an engaging piece 51a and an engaging hole 51b that can be engaged and disengaged at both end sides 50a and 50b, the manufacturing cost is likely to increase. In addition, since the change in the diameter, number, and shape of the pipes is absorbed only by the elastic deformation of the heat-resistant foam 53, the range of absorption by one fire-prevention section penetration member is narrow, and as a result, the diameter, number, and shape of the pipes 3 It is necessary to prepare various types of through-holes for fire protection compartments corresponding to the above types, so that the handling becomes complicated and the production cost is increased.

【0004】本発明は、上述の実状に鑑みて為されたも
のであって、その主たる課題は、部材点数及び加工工程
数の削減によって製造コストの低廉化を図りながらも、
口径や形状等の異なる複数種類の管様体に対する一種類
当りでの適用範囲を拡大することができ、しかも、管様
体に対する装着作業の容易化も図ることのできる有用な
防火用熱膨張材を提供する点にある。
The present invention has been made in view of the above situation, and its main problem is to reduce the manufacturing cost by reducing the number of members and the number of processing steps.
Useful thermal expansion material for fire prevention that can expand the application range per type for a plurality of types of pipe-like bodies with different diameters, shapes, etc., and can also facilitate installation work on the pipe-like bodies. The point is to provide.

【0005】[0005]

【課題を解決するための手段】本発明の請求項1による
防火用熱膨張材の特徴構成は、防火区画の貫通孔の内周
面と該貫通孔に配設された管様体の外周面との間に装着
可能な厚みを有し、かつ、管様体の外周に沿って巻回可
能な長さと可撓性を備えた熱膨張性耐熱シール材に、該
熱膨張性耐熱シール材をそれの復元力に抗して前記の巻
回姿勢に保持する保持手段が設けられている点にある。
上記特徴構成によれば、防火区画領域にある防火区画体
に形成された貫通孔を通して、合成樹脂製の配管類(ポ
リ塩化ビニル管、ポリエチレン管等の可燃性の合成樹脂
管、電気ケーブル等)或いは配管類の一本又は複数本を
挿通させる合成樹脂製の保護管(サヤ管)などの管様体
を配設する際、例えば、貫通孔外の広い空間において、
前記管様体の外周面に沿って可撓性を備えた熱膨張性耐
熱シール材を巻回し、この熱膨張性耐熱シール材の巻回
姿勢を保持手段にて保持したのち、これを貫通孔内の所
定位置に移動させるといった少ない手数で防火用熱膨張
材を装着することができる。しかも、その後は、必要に
応じて、巻回姿勢にある熱膨張性耐熱シール材の外周面
と貫通孔の内周面との間にモルタルやパテ等の耐熱性充
填材を充填するだけで施工の主要部が終了する。従っ
て、従来の防火区画用貫通部材のような大きな板金製の
カバー体が不要であり、かつ、前記のような可撓性を備
えた熱膨張性耐熱シール材とこれの巻回姿勢を保持する
保持手段とを準備するだけで済むから、部材点数及び加
工工程数の削減によって製造コストの低廉化を図ること
ができる。しかも、熱膨張性耐熱シール材による巻回方
式を採るが故に、口径や形状等の異なる複数種類の管様
体に対する一種類当りでの適用範囲を拡大することがで
きるとともに、管様体に対する装着作業の容易化も同時
に達成することができる。
According to the first aspect of the present invention, the thermal expansion material for fire protection is characterized by an inner peripheral surface of a through hole of the fire protection compartment and an outer peripheral surface of a tubular body disposed in the through hole. And a heat-expandable heat-resistant seal material having a length and flexibility capable of being wound along the outer periphery of the tubular body, The point is that a holding means for holding the above-mentioned winding posture against the restoring force is provided.
According to the above characteristic configuration, synthetic resin pipes (flammable synthetic resin pipes such as polyvinyl chloride pipes and polyethylene pipes, electric cables, etc.) through the through holes formed in the fire protection compartment body in the fire protection compartment area. Alternatively, when arranging a tubular body such as a synthetic resin protective tube (sheath tube) through which one or a plurality of pipes are inserted, for example, in a large space outside the through hole,
A heat-expandable heat-resistant sealing material having flexibility is wound along the outer peripheral surface of the tube-like body, and the winding posture of the heat-expandable heat-resistant sealing material is held by holding means, and then the through-hole is inserted. The thermal expansion material for fire prevention can be mounted with a small number of steps such as moving to a predetermined position in the inside. Moreover, after that, if necessary, simply fill the space between the outer peripheral surface of the heat-expandable heat-resistant sealing material in the winding position and the inner peripheral surface of the through-hole with a heat-resistant filler such as mortar or putty. The main part ends. Therefore, a large sheet-metal cover body such as a conventional through-hole for a fire-prevention section is not required, and the above-described heat-expandable heat-resistant seal material having flexibility and the winding posture thereof are maintained. Since it is only necessary to prepare the holding means, manufacturing costs can be reduced by reducing the number of members and the number of processing steps. In addition, since a winding method using a heat-expandable heat-resistant sealing material is employed, the application range per type for a plurality of types of pipe-shaped bodies having different diameters and shapes can be expanded, and mounting to the pipe-shaped bodies can be performed. Simplicity of work can be achieved at the same time.

【0006】本発明の請求項2による防火用熱膨張材の
特徴構成は、前記保持手段が、片面に粘着剤層を形成し
てある粘着テープから構成されている点にある。上記特
徴構成によれば、前記管様体の外周面に沿って熱膨張性
耐熱シール材を巻回したのち、この巻回姿勢にある熱膨
張性耐熱シール材の両端部に亘って粘着テープを貼り付
けるだけで済むから、例えば、前記保持手段が、巻回姿
勢にある熱膨張性耐熱シール材を外周面側から緊締する
バンド、或いは、巻回姿勢にある熱膨張性耐熱シール材
の両端部に亘って突き刺し可能な突刺し連結部材から構
成されている場合に比して、熱膨張性耐熱シール材の巻
回姿勢での止め付け作業を能率良く容易に行うことがで
きるとともに、粘着テープ自体が軽量、薄肉でかつ価格
も低廉であるから、防火用熱膨張材の製造コストの低廉
化を促進することができるとともに、物流時の取り扱い
も容易に行うことができる。
A characteristic configuration of the thermal expansion material for fire protection according to claim 2 of the present invention is that the holding means is formed of an adhesive tape having an adhesive layer formed on one surface. According to the above-mentioned characteristic configuration, after winding the heat-expandable heat-resistant seal material along the outer peripheral surface of the tubular body, the adhesive tape is applied to both ends of the heat-expandable heat-resistant seal material in the wound position. For example, the holding means may be a band that tightens the heat-expandable heat-resistant seal material in the wound position from the outer peripheral surface side, or both ends of the heat-expandable heat-resistant seal material in the wound position. As compared with the case where the connecting member is constituted by a piercing connection member capable of piercing over the entire surface, the operation of fastening the heat-expandable heat-resistant sealing material in the winding position can be performed efficiently and easily, and the adhesive tape itself can be used. However, since it is lightweight, thin, and inexpensive, it is possible to promote a reduction in the production cost of the thermal expansion material for fire prevention and to facilitate handling during distribution.

【0007】本発明の請求項3による防火用熱膨張材の
特徴構成は、前記粘着テープが、熱膨張性耐熱シール材
の表裏両側面のうち、巻回姿勢で外側に位置する側面の
全域に貼り付けられている点にある。上記特徴構成によ
れば、前記熱膨張性耐熱シール材の表裏両側面のうち、
巻回姿勢で外側に位置する側面の全域を粘着テープで保
護することができるから、例えば、防火区画体側の貫通
孔の内周面と巻回姿勢にある熱膨張性耐熱シール材の外
周面との間にモルタルを充填する場合でも、該モルタル
による熱膨張性耐熱シール材の性能の劣化を抑制するこ
とができる。
According to a third aspect of the present invention, the heat-expanding material for fire protection is characterized in that the adhesive tape is provided on the entire side surface of the front and back surfaces of the heat-expandable heat-resistant sealing material which is located outside in the winding position. It is in the point that is pasted. According to the above-mentioned characteristic configuration, of the front and back sides of the heat-expandable heat-resistant sealing material,
Since the entire area of the side surface located outside in the winding position can be protected by the adhesive tape, for example, the inner peripheral surface of the through-hole on the fire protection compartment side and the outer peripheral surface of the heat-expandable heat-resistant sealing material in the winding position. Even when the mortar is filled in between, the deterioration of the performance of the heat-expandable heat-resistant sealing material due to the mortar can be suppressed.

【0008】本発明の請求項4による防火用熱膨張材の
特徴構成は、前記粘着テープが、熱膨張性耐熱シール材
の表裏両側面のうち、巻回姿勢で外側に位置する側面の
一部に貼り付けられている点にある。上記特徴構成によ
れば、巻回姿勢で外側に位置する熱膨張性耐熱シール材
の側面のうち、粘着テープが貼り付けられていない残り
の部分が外部に露出しているから、火災発生時に加熱さ
れて熱膨張性耐熱シール材が熱膨張したとき、そのとき
の圧力で熱膨張性耐熱シール材の露出側面部分が防火区
画体側の貫通孔の内周面に強く圧接されて密着し、有害
ガス等が隣室側に流入することをより効果的に防止する
ことができる。
According to a fourth aspect of the present invention, there is provided a characteristic feature of the thermal expansion material for fire prevention according to the present invention, wherein the pressure-sensitive adhesive tape is a part of a side surface located outside in a winding position on both front and back surfaces of the heat-expandable heat-resistant sealing material. The point is that it is pasted. According to the above characteristic configuration, the remaining portion of the side surface of the heat-expandable heat-resistant sealing material which is positioned outside in the winding position, to which the adhesive tape is not attached, is exposed to the outside, so that it is heated when a fire occurs. When the heat-expandable heat-resistant seal material is thermally expanded by heat, the exposed side surface of the heat-expandable heat-resistant seal material is strongly pressed against and adhered to the inner peripheral surface of the through hole on the fire-prevention compartment side at the pressure at that time, causing harmful gas. And the like can be more effectively prevented from flowing into the adjacent room.

【0009】本発明の請求項5による防火用熱膨張材の
特徴構成は、前記粘着テープの粘着剤層のうち、熱膨張
性耐熱シール材の巻回方向の一端から突出する部位の粘
着剤層部分に離型紙が貼り付けられている点にある。上
記特徴構成によれば、前記粘着テープの粘着剤層のう
ち、熱膨張性耐熱シール材の巻回方向の一端から突出す
る部位の粘着剤層部分に塵埃等が付着することに起因す
る熱膨張性耐熱シール材の巻き弛みを防止することがで
きるとともに、物流時や施工時の取り扱いもラフに行う
ことができる。
[0009] The characteristic structure of the thermal expansion material for fire prevention according to claim 5 of the present invention is that the pressure-sensitive adhesive layer of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape protrudes from one end in the winding direction of the heat-expandable heat-resistant seal material. The point is that release paper is stuck to the part. According to the above-mentioned characteristic configuration, the thermal expansion caused by the attachment of dust or the like to the adhesive layer portion of the adhesive layer of the adhesive tape that protrudes from one end in the winding direction of the heat-expandable heat-resistant sealing material. In addition to preventing the heat-resistant sealing material from becoming loose, the handling during distribution and construction can be performed roughly.

【0010】本発明の請求項6による防火用熱膨張材の
特徴構成は、前記粘着テープのテープ基材が金属箔から
構成されている点にある。上記特徴構成によれば、熱膨
張性耐熱シール材の巻回姿勢での止め付け作業の能率化
及び製造コストの低廉化に効果のある粘着テープを用い
ながらも、火災発生時における粘着テープのテープ基材
からの有害ガスの発生を抑制することができる。
A feature of the thermal expansion material for fire protection according to claim 6 of the present invention is that the tape base of the adhesive tape is made of a metal foil. According to the above-mentioned characteristic configuration, the tape of the adhesive tape in the event of a fire occurs, while using an adhesive tape that is effective for the efficiency of the fastening operation in the winding position of the heat-expandable heat-resistant sealing material and for reducing the manufacturing cost. Generation of harmful gas from the base material can be suppressed.

【0011】本発明の請求項7による防火用熱膨張材の
特徴構成は、前記粘着テープのテープ基材の表面に、適
用可能な管様体の情報が印刷されている点にある。上記
特徴構成によれば、粘着テープのテープ基材の表面を見
るだけで、適用可能な管様体の情報を入手できるから、
作業能率の向上を図ることができる。
A characteristic configuration of the thermal expansion material for fire protection according to claim 7 of the present invention is that information of an applicable tubular body is printed on the surface of the tape base of the adhesive tape. According to the above-mentioned characteristic configuration, only by looking at the surface of the tape base of the adhesive tape, information on the applicable tubular body can be obtained.
Work efficiency can be improved.

【0012】本発明の請求項8による防火用熱膨張材の
特徴構成は、前記熱膨張性耐熱シール材が、該熱膨張性
耐熱シール材の熱膨張を許容する合成樹脂製のフイルム
で被覆されている点にある。上記特徴構成によれば、前
記熱膨張性耐熱シール材の包装の簡素化を図ることがで
きるととともに、合成樹脂製のフイルムの滑り性を利用
して、前記管様体の外周面に沿って巻回された熱膨張性
耐熱シール材の移動操作を迅速、容易に行うことができ
る。
A feature of the thermal expansion material for fire protection according to claim 8 of the present invention is that the heat-expandable heat-resistant seal material is covered with a synthetic resin film that allows the heat-expandable heat-resistant seal material to expand thermally. It is in the point. According to the above-mentioned characteristic configuration, it is possible to simplify the packaging of the heat-expandable heat-resistant sealing material, and along the outer peripheral surface of the tubular body by utilizing the slipperiness of the synthetic resin film. The operation of moving the wound heat-expandable heat-resistant seal material can be performed quickly and easily.

【0013】本発明の請求項9による防火用熱膨張材の
特徴構成は、前記熱膨張性耐熱シール材に、貫通孔の開
口周縁部に対して孔軸芯方向から接当することにより、
熱膨張性耐熱シール材の貫通孔内への挿入位置を規制す
る装着位置規制手段が付設されている点にある。上記特
徴構成によれば、例えば、貫通孔外の広い空間におい
て、管様体の外周面に沿って可撓性を備えた熱膨張性耐
熱シール材を巻回し、この熱膨張性耐熱シール材の巻回
姿勢を保持手段にて保持したのち、これを貫通孔内の所
定位置に孔軸芯方向に沿って移動させる際、前記装着位
置規制手段が貫通孔の開口周縁部に接当する位置にまで
移動操作するだけで、巻回姿勢にある熱膨張性耐熱シー
ル材を貫通孔内の所定位置に装着することができる。特
に、前記貫通孔が上下方向に沿って形成されている場合
では、巻回姿勢にある熱膨張性耐熱シール材が貫通孔を
通過して落下することを防止することができるから、熱
膨張性耐熱シール材の装着作業の容易化を促進すること
ができる。
According to a ninth aspect of the present invention, the thermal expansion material for fire prevention is characterized in that the thermal expansion heat-resistant seal material is brought into contact with the peripheral edge of the opening of the through-hole from the hole axis direction.
The present invention is characterized in that mounting position regulating means for regulating the insertion position of the heat-expandable heat-resistant sealing material into the through hole is provided. According to the above-mentioned characteristic configuration, for example, in a wide space outside the through hole, a heat-expandable heat-resistant seal material having flexibility is wound along the outer peripheral surface of the tubular body, and the heat-expandable heat-resistant seal material is After the winding posture is held by the holding means, when the winding position is moved to a predetermined position in the through hole along the hole axis direction, the mounting position regulating means is brought into a position where it comes into contact with the opening edge of the through hole. By simply moving the heat-sealing member, the heat-expandable heat-resistant sealing material in the winding position can be mounted at a predetermined position in the through-hole. In particular, when the through hole is formed along the vertical direction, it is possible to prevent the heat-expandable heat-resistant sealing material in the winding position from dropping through the through-hole, so It is possible to facilitate the work of mounting the heat-resistant sealing material.

【0014】本発明の請求項10による防火用熱膨張材
の特徴構成は、前記装着位置規制手段が、熱膨張性耐熱
シール材に対して脱着自在に構成されている点にある。
上記特徴構成によれば、巻回姿勢にある熱膨張性耐熱シ
ール材を貫通孔内の所定位置に挿入し、かつ、該熱膨張
性耐熱シール材を防火区画体側に仮止め又は固定した時
点で、不要となる装着位置規制手段を熱膨張性耐熱シー
ル材から取り外すことにより、貫通孔の開口側での仕上
げ処理を容易に行うことができる。また、前記装着位置
規制手段を熱膨張性耐熱シール材に付設した状態では、
該装着位置規制手段が熱膨張性耐熱シール材よりも直径
方向外方に張り出すことになるが、このままでは、防火
用熱膨張材全体が嵩張るため、前記装着位置規制手段を
熱膨張性耐熱シール材から取り外すことによって、物流
時のコンパクト化及び取扱いの容易化を図ることができ
る。
According to a tenth aspect of the present invention, a characteristic feature of the thermal expansion material for fire prevention is that the mounting position regulating means is configured to be detachable from the heat-expandable heat-resistant seal material.
According to the above characteristic configuration, the heat-expandable heat-resistant seal material in the winding position is inserted at a predetermined position in the through hole, and at the time when the heat-expandable heat-resistant seal material is temporarily fixed or fixed to the fireproof compartment side. By removing the unnecessary mounting position regulating means from the heat-expandable heat-resistant sealing material, the finishing process on the opening side of the through-hole can be easily performed. Further, in a state where the mounting position regulating means is attached to the heat-expandable heat-resistant sealing material,
The mounting position restricting means protrudes outward in the diametric direction from the heat-expandable heat-resistant seal material. However, since the entire fire-expanding heat-expanding material is bulky as it is, the mounting position restricting means is replaced by the heat-expandable heat-resistant seal. By removing the material from the material, it is possible to reduce the size and ease of handling during distribution.

【0015】[0015]

【発明の実施の形態】〔第1実施形態〕図1〜図6は、
防火区画領域にある防火区画体の一例で、耐火構造の床
や壁等の躯体1に形成された貫通孔2を通して、管様体
Pの一例である合成樹脂製の配管類(ポリ塩化ビニル
管、ポリエチレン管等の可燃性の合成樹脂管、電気ケー
ブル等)3を配設する際に用いられる防火用熱膨張材を
示し、これは、前記貫通孔2の内周面2aと該貫通孔2
に貫通状態で配設された配管類3の外周面3aとの間に
孔軸芯X方向から装着可能な厚みと弾性を有し、かつ、
配管類3の外周面3aに沿って少なくともほぼ1巻き又
は1巻き以上巻回可能な長さと可撓性(柔軟性)を備え
たシート状(板状又は帯状)の熱膨張性耐熱シール材4
の表裏両側面のうち、巻回姿勢で外側に位置する側面
に、該熱膨張性耐熱シール材4をそれの復元力に抗して
前記の巻回姿勢に保持する保持手段の一例である粘着テ
ープ5が貼り付けられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIGS.
An example of a fire-prevention compartment in the fire-prevention compartment area, through a through hole 2 formed in a frame 1 such as a floor or a wall of a fire-resistant structure, a synthetic resin piping (polyvinyl chloride pipe, 3 shows a thermal expansion material for fire prevention which is used when arranging a flammable synthetic resin pipe such as a polyethylene pipe or an electric cable) 3, and comprises an inner peripheral surface 2 a of the through hole 2 and the through hole 2.
Has a thickness and elasticity that can be attached to the outer peripheral surface 3a of the pipes 3 disposed in a penetrating state from the hole axis X direction, and
A sheet-like (plate-like or band-like) heat-expandable heat-resistant seal material 4 having a length and flexibility (flexibility) capable of winding at least substantially one or more turns along the outer peripheral surface 3a of the piping 3.
Adhesive, which is an example of a holding means for holding the heat-expandable heat-resistant seal material 4 in the above-mentioned winding position against the restoring force of the heat-expandable heat-resistant sealing material 4 on the side surface located outside in the winding position among the front and back side surfaces of The tape 5 is stuck.

【0016】前記熱膨張性耐熱シール材4は、前記貫通
孔2の貫通長さよりも短い幅で平面視ほぼ矩形状となる
シート状(板状又は帯状)に成形されているとともに、
その長手方向の両端面4aの各々は、前記巻回姿勢に巻
回操作したときにそぎ継ぎ形式で接合可能な傾斜面に形
成されている。この熱膨張性耐熱シール材4の長さは、
口径の異なる複数種類(当該実施形態では三種類)の配
管類3に適用できるように、最大口径の配管類3の外周
面に沿って1巻きできる長さに設定されている。そのた
め、口径の小さな配管類3では、1巻き以上巻回するこ
とになる。
The heat-expandable heat-resistant sealing material 4 is formed in a sheet shape (plate shape or band shape) having a width shorter than the penetration length of the through hole 2 and having a substantially rectangular shape in plan view.
Each of the both end surfaces 4a in the longitudinal direction is formed as an inclined surface that can be joined in a splicing manner when the winding operation is performed in the winding posture. The length of this heat-expandable heat-resistant sealing material 4 is
In order to be applicable to a plurality of types (three types in this embodiment) of pipes 3 having different diameters, the length is set to be one turn along the outer peripheral surface of the pipes 3 having the maximum diameter. Therefore, in the case of the small diameter pipes 3, one or more turns are wound.

【0017】また、前記熱膨張性耐熱シール材4は、火
災発生時の加熱により数倍以上(当該実施形態では4倍
以上の発泡倍率に設定)に発泡して、躯体1の貫通孔2
全体を閉塞する発泡性樹脂組成物から構成されていて、
その発泡性樹脂組成物自体としては従来から種々のもの
が存在するが、例えば、柔軟性を備えたゴム(例えば、
天然ゴム、イソブレンゴム、ブタジエンゴム、アクリル
ゴム、エチレンープロビレンゴム等)又は熱可塑性エラ
ストマー(例えば、スチレン系熱可塑性エラストマー、
オレフィン系熱可塑性エラストマー、塩ビ系熱可塑性エ
ラストマー等)からなるベース樹脂に、ホウ砂、膨張性
黒鉛、ひる石、パーライトの群の1種又はそれらの混合
物から成る無機系発泡剤と、アゾジカルボンアミド、ア
ゾジアミノベンゼン、ベンゼンスルホニルヒドラジド群
の1種又はそれらの混合物から成る有機系発泡剤、及
び、柔軟性を付与する可塑剤(例えば、ジメチルフタレ
ート、ジエチルフタト、ジブチルフタレート等)とを同
時に配合したものなどが使用される。要するに、前記熱
膨張性耐熱シール材4を構成する発泡性樹脂組成物とし
ては、火災発生時の加熱で発泡してそのときの圧力で軟
化している合成樹脂製の配管類3を押し潰しながら貫通
孔2全体を閉塞できるものであれば、当該実施形態で説
明した上述の構成要件(又は請求項1の構成要件)を満
たす範囲内で適宜材料を選定するとよい。
The heat-expandable heat-resistant sealing material 4 is foamed to several times or more (in this embodiment, set to a foaming ratio of 4 times or more) by heating in the event of a fire, and
It is composed of a foamable resin composition that blocks the whole,
As the foamable resin composition itself, various types have been conventionally known. For example, rubber having flexibility (for example,
Natural rubber, isoprene rubber, butadiene rubber, acrylic rubber, ethylene-provylene rubber, etc.) or thermoplastic elastomer (for example, styrene-based thermoplastic elastomer,
Olefin-based thermoplastic elastomer, PVC-based thermoplastic elastomer, etc.) and a base resin composed of borax, expandable graphite, vermiculite, perlite, or an inorganic foaming agent comprising a mixture thereof, and azodicarbonamide Azodiaminobenzene, benzenesulfonyl hydrazide, an organic blowing agent comprising one or a mixture thereof, and a plasticizer (for example, dimethyl phthalate, diethyl phthalate, dibutyl phthalate, etc.) for imparting flexibility. Are used. In short, as the foamable resin composition constituting the heat-expandable heat-resistant sealing material 4, while squeezing the synthetic resin piping 3 which has been foamed by heating at the time of fire occurrence and softened by the pressure at that time. As long as the entire through hole 2 can be closed, a material may be appropriately selected within a range that satisfies the above-described configuration requirements (or the configuration requirements of claim 1) described in the embodiment.

【0018】前記粘着テープ5は、金属箔の一例である
補強繊維入りのアルミニウム箔で製作されたテープ基材
5aの片面に粘着剤層5bを形成して構成されていると
ともに、熱膨張性耐熱シール材4の幅と同一の幅で、か
つ、熱膨張性耐熱シール材4の長さよりも貼り合せ代分
だけ長い寸法で矩形状に構成されていて、前記熱膨張性
耐熱シール材4の表裏両側面のうち、巻回姿勢で外側に
位置する側面の全域に貼り付けられている。前記粘着テ
ープ5のテープ基材5aの表面には、口径の異なる複数
の配管類3の種類や1巻きの寸法目盛など、防火用熱膨
張材が適用可能な配管類3の情報8が印刷されている。
また、前記粘着テープ5の粘着剤層5bのうち、熱膨張
性耐熱シール材4の長手方向(巻回方向)の一端から貼
り合せ代分だけ突出する部位の粘着剤層5b部分には離
型紙6が剥離可能に貼り付けられている。前記粘着剤層
5bは、例えば、ゴム系、アクリル系等の粘着素材から
構成されているとともに、前記離型紙は、紙、合成紙、
合成樹脂フイルム等の素材の表面にシリコンを塗布して
構成されている。
The pressure-sensitive adhesive tape 5 is formed by forming a pressure-sensitive adhesive layer 5b on one surface of a tape base material 5a made of an aluminum foil containing reinforcing fibers, which is an example of a metal foil. It has the same width as the width of the sealing material 4 and has a rectangular shape having a dimension longer than the length of the heat-expandable heat-resistant seal material 4 by a bonding margin. It is affixed to the whole area of the side face located outside in the winding posture among the both side faces. On the surface of the tape base 5 a of the adhesive tape 5, information 8 on the pipes 3 to which the thermal expansion material for fire prevention can be applied, such as the type of a plurality of pipes 3 having different diameters and a dimensional scale of one turn, is printed. ing.
In the pressure-sensitive adhesive layer 5b of the pressure-sensitive adhesive tape 5, a portion of the pressure-sensitive adhesive layer 5b protruding from one end in the longitudinal direction (winding direction) of the heat-expandable heat-resistant sealing material 4 by a bonding margin is provided as a release paper. 6 is removably attached. The pressure-sensitive adhesive layer 5b is made of, for example, a rubber-based or acrylic-based pressure-sensitive adhesive material, and the release paper is paper, synthetic paper,
It is configured by applying silicon to the surface of a material such as a synthetic resin film.

【0019】そして、図3〜図6に示すように、前記躯
体1に形成された貫通孔2の内周面とこれに挿通された
合成樹脂製の配管類3の外周面3aとの間の環状空間に
防火用熱膨張材を装着する際、先ず、図3に示すよう
に、前記貫通孔2外の広い空間において、前記配管類3
の外周面3aに沿って可撓性を備えたシート状の熱膨張
性耐熱シール材4を巻回したのち、前記粘着テープ5の
粘着剤層5bのうち、熱膨張性耐熱シール材4の巻回方
向の一端から突出し、かつ、離型紙6が剥離された貼り
合せ代の粘着剤層5b部分を、これに相対向する熱膨張
性耐熱シール材4の長手方向他端側の部位に貼り付け、
熱膨張性耐熱シール材4の巻回姿勢を粘着テープ5にて
保持する。この巻回姿勢に保持されている熱膨張性耐熱
シール材4を配管類3の外周面3aに沿って貫通孔2内
の所定位置にまで移動操作させることにより、防火用熱
膨張材の装着作業が終了する。
As shown in FIGS. 3 to 6, the gap between the inner peripheral surface of the through hole 2 formed in the frame 1 and the outer peripheral surface 3a of the synthetic resin piping 3 inserted therethrough. When mounting the thermal expansion material for fire prevention in the annular space, first, as shown in FIG.
After winding a sheet-shaped heat-expandable heat-resistant seal material 4 having flexibility along the outer peripheral surface 3a of the pressure-sensitive adhesive layer 5, the heat-expandable heat-resistant seal material 4 of the adhesive layer 5b of the adhesive tape 5 is wound. The pressure-sensitive adhesive layer 5b, which protrudes from one end in the turning direction and from which the release paper 6 has been peeled off, is stuck to a portion on the other end in the longitudinal direction of the heat-expandable heat-resistant sealing material 4 opposed to this. ,
The winding posture of the heat-expandable heat-resistant sealing material 4 is held by the adhesive tape 5. By moving the heat-expandable heat-resistant seal material 4 held in this winding position along the outer peripheral surface 3a of the pipes 3 to a predetermined position in the through-hole 2, the mounting operation of the thermal expansion material for fire prevention is performed. Ends.

【0020】当該実施形態では、図4に示すように、巻
回姿勢に保持されている熱膨張性耐熱シール材4の貫通
孔2内への挿入がスムーズに行えるように、巻回姿勢に
ある熱膨張性耐熱シール材4に貼り付けられた粘着テー
プ5の外側面と前記貫通孔2の内周面2aとの間に若干
の空隙(例えば、5〜10mmの隙間)を設けてあるの
で、前記装着作業が終了したのち、図5、図6に示すよ
うに、巻回姿勢にある熱膨張性耐熱シール材4に貼り付
けられた粘着テープ5の外側面と貫通孔2の内周面2a
との間にモルタルや耐火パテ等の耐熱性充填材7を充填
する。また、前記耐熱性充填材7としてモルタルを充填
する場合でも、熱膨張性耐熱シール材4の表裏両側面の
うち、巻回姿勢で外側に位置する側面の全域に粘着テー
プ5が貼り付けられているから、モルタルによる熱膨張
性耐熱シール材4の経時的な劣化を抑制することができ
る。
In this embodiment, as shown in FIG. 4, the heat-expandable heat-resistant seal material 4 held in the winding position is in the winding position so that it can be smoothly inserted into the through hole 2. Since a slight gap (for example, a gap of 5 to 10 mm) is provided between the outer surface of the adhesive tape 5 stuck to the heat-expandable heat-resistant sealing material 4 and the inner peripheral surface 2a of the through hole 2, After the completion of the mounting operation, as shown in FIGS. 5 and 6, the outer surface of the adhesive tape 5 and the inner peripheral surface 2a of the through-hole 2 attached to the heat-expandable heat-resistant sealing material 4 in the wound position.
Is filled with a heat-resistant filler 7 such as mortar or refractory putty. Further, even when mortar is filled as the heat-resistant filler 7, the adhesive tape 5 is applied to the entire area of the side surface located outside in the winding position on both front and back surfaces of the heat-expandable heat-resistant seal material 4. Therefore, it is possible to suppress the deterioration of the heat-expandable heat-resistant sealing material 4 with mortar over time.

【0021】〔第2実施形態〕図7、図8に示す防火用
熱膨張材は、前記熱膨張性耐熱シール材4に、前記躯体
1の貫通孔2の開口周縁部1aに対して孔軸芯X方向か
ら接当することにより、熱膨張性耐熱シール材4の貫通
孔2内への挿入位置を規制する装着位置規制手段9を脱
着自在に付設したものである。前記装着位置規制手段9
は、熱膨張性耐熱シール材4の幅方向両端に位置する端
面4bの一方に対して孔軸芯X方向から突刺し可能な突
刺し部9aと、貫通孔2の開口周縁部1aに対して孔軸
芯X方向から接当する接当規制部9bとをほぼLの字状
に一体成形された合成樹脂製又は金属製の複数の装着位
置規制体9Aから構成されているとともに、前記突刺し
部9aには、突出代の小さな抜け落ち防止用の爪9cが
一体形成されている。そして、前記貫通孔2外の広い空
間において、前記配管類3の外周面3aに沿って可撓性
を備えたシート状の熱膨張性耐熱シール材4を巻回し、
この熱膨張性耐熱シール材4の巻回姿勢を粘着テープ5
にて保持したのち、これを貫通孔2内の所定位置に孔軸
芯X方向に沿って移動させる際、前記熱膨張性耐熱シー
ル材4の端面4bの周方向複数箇所(当該実施形態で
は、周方向の三箇所)に突刺し保持された各装着位置規
制体9Aの接当規制部9bが、前記貫通孔2の開口周縁
部1aに接当する位置まで移動操作するだけで、巻回姿
勢にある熱膨張性耐熱シール材4を貫通孔2内の所定位
置に装着することができる。特に、前記貫通孔2が上下
方向に沿って形成されている場合では、巻回姿勢にある
熱膨張性耐熱シール材4が貫通孔2を通過して落下する
ことを防止することができるから、熱膨張性耐熱シール
材4の装着作業の容易化を促進することができるのであ
る。尚、その他の構成は、第1実施形態で説明した構成
と同一であるから、同一の構成箇所には、第1実施形態
と同一の番号を付記してそれの説明は省略する。
[Second Embodiment] The thermal expansion material for fire prevention shown in FIG. 7 and FIG. 8 is provided in the heat-expandable heat-resistant sealing material 4 with respect to the opening peripheral portion 1a of the through hole 2 of the frame 1. A mounting position restricting means 9 for restricting the insertion position of the heat-expandable heat-resistant sealing material 4 into the through hole 2 by being brought into contact with the core X direction is detachably provided. The mounting position regulating means 9
The piercing portion 9a that can pierce one of the end surfaces 4b located at both ends in the width direction of the heat-expandable heat-resistant sealing material 4 from the hole axis X direction, and the opening peripheral portion 1a of the through hole 2 A plurality of mounting position restrictors 9A made of synthetic resin or metal integrally formed in a substantially L-shape with a contact restricting portion 9b contacting from the hole axis X direction. A small projection 9c for preventing falling off is formed integrally with the portion 9a. Then, in a wide space outside the through hole 2, a sheet-like heat-expandable heat-resistant seal material 4 having flexibility is wound along the outer peripheral surface 3a of the pipes 3,
The winding posture of this heat-expandable heat-resistant sealing material 4 is
After being held at a predetermined position in the through-hole 2 along the hole axis X direction, a plurality of positions (in the present embodiment, in the circumferential direction) of the end surface 4b of the heat-expandable heat-resistant sealing material 4 in the circumferential direction. The winding position is determined by simply moving the contact restricting portion 9b of each mounting position restricting body 9A pierced and held at three positions in the circumferential direction to a position where it comes into contact with the opening peripheral portion 1a of the through hole 2. Can be mounted at a predetermined position in the through hole 2. In particular, when the through-hole 2 is formed along the vertical direction, the heat-expandable heat-resistant sealing material 4 in the winding position can be prevented from dropping through the through-hole 2, This facilitates the work of mounting the heat-expandable heat-resistant sealing material 4. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

【0022】〔第3実施形態〕図9は、防火区画領域に
ある防火区画体の一例で、耐火構造の床や壁等の躯体1
に形成された貫通孔2を通して、管様体Pの一例で、合
成樹脂製の配管類(ポリ塩化ビニル管、ポリエチレン管
等の可燃性の合成樹脂管、電気ケーブル等)3の複数本
を挿通させる横断面形状が楕円状に形成された合成樹脂
製の屈曲自在な保護管(サヤ管)10を配設する際に用
いられる防火用熱膨張材を示し、第1実施形態と同様
に、前記貫通孔2の内周面2aと該貫通孔2に貫通状態
で配設された保護管10の外周面10aとの間に孔軸芯
X方向から装着可能な厚みと弾性を有し、かつ、保護管
10の外周面10aに沿って少なくともほぼ1巻き又は
1巻き以上巻回可能な長さと可撓性(柔軟性)を備えた
シート状(板状又は帯状)の熱膨張性耐熱シール材4の
表裏両側面のうち、巻回姿勢で外側に位置する側面に、
該熱膨張性耐熱シール材4をそれの復元力に抗して前記
の巻回姿勢に保持する保持手段の一例である粘着テープ
5が貼り付けられている。尚、その他の構成は、第1実
施形態で説明した構成と同一であるから、同一の構成箇
所には、第1実施形態と同一の番号を付記してそれの説
明は省略する。
[Third Embodiment] FIG. 9 shows an example of a fire-prevention compartment in a fire-prevention compartment area.
A plurality of pipes 3 made of synthetic resin (flammable synthetic resin pipes such as polyvinyl chloride pipes and polyethylene pipes, electric cables, etc.) 3 are inserted through the through-holes 2 formed in the pipe. This figure shows a thermal expansion material for fire prevention used when arranging a bendable protective tube (sheath tube) 10 made of synthetic resin and having an elliptical cross-sectional shape to be formed, similar to the first embodiment. Has a thickness and elasticity that can be mounted between the inner peripheral surface 2a of the through hole 2 and the outer peripheral surface 10a of the protective tube 10 disposed in the through hole 2 in a penetrating state from the hole axis X direction; A sheet-like (plate-like or band-like) heat-expandable heat-resistant sealing material 4 having a length and flexibility (flexibility) capable of winding at least one or more turns along the outer peripheral surface 10a of the protective tube 10. Of the front and back sides, on the side located outside in the winding position,
An adhesive tape 5, which is an example of a holding means for holding the heat-expandable heat-resistant sealing material 4 in the above-mentioned winding position against its restoring force, is attached. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

【0023】〔第4実施形態〕図10に示す防火用熱膨
張材は、前記熱膨張性耐熱シール材4の表裏両側面のう
ち、巻回姿勢で外側に位置する側面の一部、つまり、熱
膨張性耐熱シール材4の外側面で、かつ、幅方向の両側
に位置する部位にのみそれぞれ粘着テープ5を貼り付け
てある。この実施形態によれば、巻回姿勢で外側に位置
する熱膨張性耐熱シール材4の外側面のうち、粘着テー
プ5が貼り付けられていない残りの部分4cが外部に露
出しているから、火災発生時の熱で熱膨張性耐熱シール
材4が熱膨張したとき、そのときの圧力で熱膨張性耐熱
シール材4の露出外側面部分4cが防火区画体である躯
体1側の貫通孔2の内周面に強く圧接されて密着し、有
害ガス等が隣室側に流入することをより効果的に防止す
ることができるのである。尚、その他の構成は、第1実
施形態で説明した構成と同一であるから、同一の構成箇
所には、第1実施形態と同一の番号を付記してそれの説
明は省略する。
[Fourth Embodiment] The thermal expansion material for fire prevention shown in FIG. 10 is a part of the side surface located outside in the winding position, that is, a part of the front and back sides of the heat-expandable heat-resistant sealing material 4, that is, Adhesive tapes 5 are attached only to the outer surface of the heat-expandable heat-resistant sealing material 4 and only to portions located on both sides in the width direction. According to this embodiment, the remaining portion 4c of the outer surface of the heat-expandable heat-resistant seal material 4 that is positioned outside in the winding position, to which the adhesive tape 5 is not attached, is exposed to the outside. When the heat-expandable heat-resistant seal material 4 thermally expands due to the heat at the time of the fire, the exposed outer surface portion 4c of the heat-expandable heat-resistant seal material 4 is exposed to the pressure at that time, and the through-hole 2 on the side of the skeleton 1 that is the fire protection compartment. Is strongly pressed against and adheres to the inner peripheral surface of the inner chamber, and the harmful gas and the like can be more effectively prevented from flowing into the adjacent chamber. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

【0024】〔第5実施形態〕図11に示す防火用熱膨
張材は、前記熱膨張性耐熱シール材4を、該熱膨張性耐
熱シール材4の熱膨張を延伸又は破断等によって許容す
る合成樹脂製のフイルム11により密着又はほぼ密着状
態で被覆するとともに、該フイルム11のうち、熱膨張
性耐熱シール材4を巻回させたときに外側に位置する外
側面で、かつ、熱膨張性耐熱シール材4の長手方向(巻
回方向)の一端部側に、フイルム11で被覆されたまま
の熱膨張性耐熱シール材4をそれの復元力に抗して前記
の巻回姿勢に保持する保持手段の一例である粘着テープ
5を貼り付けてある。尚、その他の構成は、第1実施形
態で説明した構成と同一であるから、同一の構成箇所に
は、第1実施形態と同一の番号を付記してそれの説明は
省略する。また、前記第1実施形態から第4実施形態の
ように、粘着テープ5が貼り付けられている熱膨張性耐
熱シール材4を、該熱膨張性耐熱シール材4の熱膨張を
延伸又は破断等によって許容する合成樹脂製のフイルム
11により密着又はほぼ密着状態で被覆してもよい。こ
の場合、前記粘着テープ5の粘着剤層5bのうち、熱膨
張性耐熱シール材4の長手方向の一端から貼り合せ代分
だけ突出する部位のみを、被覆フイルム11から外部に
突出させることになる。
[Fifth Embodiment] The thermal expansion material for fire prevention shown in FIG. 11 is obtained by synthesizing the heat-expandable heat-resistant seal material 4 by allowing the thermal expansion of the heat-expandable heat-resistant seal material 4 to be extended or broken. The film 11 is covered with a resin film 11 in close or almost close contact with the film 11, and is an outer surface of the film 11 which is located outside when the heat-expandable heat-resistant sealing material 4 is wound, and At one end in the longitudinal direction (winding direction) of the sealing material 4, the heat-expandable heat-resistant sealing material 4 as covered with the film 11 is held in the above-mentioned winding position against the restoring force of the film 11. An adhesive tape 5 as an example of the means is attached. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted. Further, as in the first embodiment to the fourth embodiment, the heat-expandable heat-resistant seal material 4 to which the adhesive tape 5 is stuck is used to extend or break the thermal expansion of the heat-expandable heat-resistant seal material 4. May be covered with a film 11 made of a synthetic resin, which is allowed by the above, in close contact or almost in close contact. In this case, only the portion of the pressure-sensitive adhesive layer 5b of the pressure-sensitive adhesive tape 5 that protrudes from one end in the longitudinal direction of the heat-expandable heat-resistant seal material 4 by the bonding margin is protruded from the covering film 11 to the outside. .

【0025】〔その他の実施形態〕 (1) 上述の実施形態では、前記管様体Pとして、合
成樹脂製の配管類(ポリ塩化ビニル管、ポリエチレン管
等の可燃性の合成樹脂管、電気ケーブル等)3、或い
は、配管類3の複数本を挿通させる横断面形状が楕円状
に形成された合成樹脂製の屈曲自在な保護管(サヤ管)
10を例に挙げて説明したが、この管様体Pとしては、
前記貫通孔2の貫通長さとほぼ等しい又はそれよりも長
い或いは短い合成樹脂製のスリーブであってもよい。
尚、前記管様体P全体が金属で製作されている場合であ
っても、本発明の防火用熱膨張材を用いることができる
が、最も効果を発揮することができるのは、前述したよ
うに全体が合成樹脂で製作されているか、或いは、合成
樹脂で被覆されている管様体Pの場合である。 (2) 上述の実施形態では、前記熱膨張性耐熱シール
材4をそれの復元力に抗して巻回姿勢に保持する保持手
段5を、片面に粘着剤層5bを形成してある粘着テープ
から構成したが、この保持手段5を、巻回姿勢にある熱
膨張性耐熱シール材4を外周面側から緊締するバンド、
或いは、巻回姿勢にある熱膨張性耐熱シール材4の両端
部に亘って突き刺し可能な突刺し連結部材から構成して
もよい。 (3) 前記熱膨張性耐熱シール材4の形状は、防火区
画体1の貫通孔2の内周面2aと該貫通孔2に配設され
た管様体Pの外周面との間に装着可能な厚みと、管様体
Pの外周に沿って巻回可能な長さと可撓性とを有する範
囲内で適宜変更することが可能である。 (4) 更に、前記熱膨張性耐熱シール材4を管様体P
の外周面に巻回したとき、該熱膨張性耐熱シール材4の
両端面間に若干の空隙が発生していても、火災発生時の
加熱で発泡してそのときの圧力で軟化している合成樹脂
製の管様体Pを押し潰しながら貫通孔2全体を閉塞する
ことができればよい。 (5) 上述の各実施形態では、前記粘着テープ5のテ
ープ基材5aを、補強繊維入りのアルミニウム箔等の金
属箔から構成したが、このテープ基材5aを不織布、
紙、ポリプロピレン、ポリエチレン等から構成してもよ
い。
[Other Embodiments] (1) In the above-described embodiment, as the tubular body P, piping made of synthetic resin (flammable synthetic resin pipe such as polyvinyl chloride pipe or polyethylene pipe, electric cable) Etc.) or a flexible protection tube (sheath tube) made of synthetic resin having an elliptical cross-sectional shape through which a plurality of pipes 3 are inserted.
10 has been described as an example, but as the tubular body P,
It may be a synthetic resin sleeve which is substantially equal to or longer than or shorter than the penetration length of the through hole 2.
In addition, even when the entire tubular body P is made of metal, the thermal expansion material for fire prevention of the present invention can be used, but the most effective effect can be obtained as described above. This is the case of a tubular body P entirely made of synthetic resin or coated with synthetic resin. (2) In the above-described embodiment, the holding means 5 for holding the heat-expandable heat-resistant sealing material 4 in a winding position against its restoring force is provided by an adhesive tape having an adhesive layer 5b formed on one surface. A band that tightens the holding means 5 from the outer peripheral surface side of the heat-expandable heat-resistant sealing material 4 in the winding position;
Alternatively, a piercing connection member that can pierce both ends of the heat-expandable heat-resistant sealing material 4 in the winding posture may be used. (3) The shape of the heat-expandable heat-resistant seal material 4 is set between the inner peripheral surface 2a of the through hole 2 of the fire protection compartment 1 and the outer peripheral surface of the tubular body P disposed in the through hole 2. The thickness can be appropriately changed within a range having a possible thickness, a length capable of being wound along the outer periphery of the tubular body P, and flexibility. (4) Further, the heat-expandable heat-resistant sealing material 4 is
When wound around the outer peripheral surface, even if a slight gap is generated between both end surfaces of the heat-expandable heat-resistant seal material 4, the foam expands by heating when a fire occurs and softens by the pressure at that time. It is sufficient that the entire through-hole 2 can be closed while crushing the synthetic resin tubular body P. (5) In each of the above-described embodiments, the tape base 5a of the adhesive tape 5 is made of a metal foil such as an aluminum foil containing reinforcing fibers.
It may be made of paper, polypropylene, polyethylene or the like.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の防火用熱膨張材の第1実施形態を示す
全体の斜視図
FIG. 1 is an overall perspective view showing a first embodiment of a thermal expansion material for fire prevention of the present invention.

【図2】防火用熱膨張材の縦断面図FIG. 2 is a longitudinal sectional view of a thermal expansion material for fire prevention.

【図3】防火用熱膨張材の巻付け状態を示す斜視図FIG. 3 is a perspective view showing a wrapped state of a thermal expansion material for fire prevention.

【図4】防火用熱膨張材を貫通孔内に装着したときの斜
視図
FIG. 4 is a perspective view when a thermal expansion material for fire prevention is mounted in a through hole.

【図5】施工状態を示す縦断面図FIG. 5 is a longitudinal sectional view showing a construction state.

【図6】施工状態を示す水平断面図FIG. 6 is a horizontal sectional view showing a construction state.

【図7】本発明の防火用熱膨張材の第2実施形態を示す
施工途中の斜視図
FIG. 7 is a perspective view showing a second embodiment of the thermal expansion material for fire prevention according to the present invention in the middle of construction.

【図8】施工状態を示す縦断面図FIG. 8 is a longitudinal sectional view showing a construction state.

【図9】本発明の防火用熱膨張材の第3実施形態を示す
施工途中の斜視図
FIG. 9 is a perspective view showing a third embodiment of the thermal expansion material for fire prevention according to the present invention in the middle of construction.

【図10】本発明の防火用熱膨張材の第4実施形態を示
す斜視図
FIG. 10 is a perspective view showing a fourth embodiment of the thermal expansion material for fire protection of the present invention.

【図11】本発明の防火用熱膨張材の第5実施形態を示
す一部切欠き斜視図
FIG. 11 is a partially cutaway perspective view showing a fifth embodiment of the thermal expansion material for fire protection of the present invention.

【図12】従来の防火区画用貫通部材を示す斜視図FIG. 12 is a perspective view showing a conventional penetration member for a fire protection compartment.

【図13】施工状態を示す縦断面図FIG. 13 is a longitudinal sectional view showing a construction state.

【符号の説明】[Explanation of symbols]

1 防火区画体(躯体) 2 貫通孔 2a 内周面 3 配管類 4 熱膨張性耐熱シール材 5 保持手段(粘着テープ) 5a テープ基材 5b 粘着剤層 8 情報 9 装着位置規制手段 10 保護管(サヤ管) 11 フイルム P 管様体 X 孔軸芯 DESCRIPTION OF SYMBOLS 1 Fire prevention compartment (body) 2 Through-hole 2a Inner peripheral surface 3 Pipings 4 Heat-expandable heat-resistant sealing material 5 Holding means (adhesive tape) 5a Tape base material 5b Adhesive layer 8 Information 9 Mounting position regulating means 10 Protective tube ( Saya pipe) 11 Film P Tube-like body X Hole axis

Claims (10)

【特許請求の範囲】[Claims] 【請求項1】 防火区画体の貫通孔の内周面と該貫通孔
に配設された管様体の外周面との間に装着可能な厚みを
有し、かつ、管様体の外周に沿って巻回可能な長さと可
撓性を備えた熱膨張性耐熱シール材に、該熱膨張性耐熱
シール材をそれの復元力に抗して前記の巻回姿勢に保持
する保持手段が設けられている防火用熱膨張材。
The present invention has a thickness attachable between an inner peripheral surface of a through-hole of a fire prevention compartment and an outer peripheral surface of a tubular body disposed in the through-hole. A heat-expanding heat-resistant seal material having a length and flexibility that can be wound along the heat-expandable heat-resistant seal material is provided with holding means for holding the heat-expandable heat-resistant seal material in the above-mentioned winding position against its restoring force. Thermal expansion materials for fire protection.
【請求項2】 前記保持手段が、片面に粘着剤層を形成
してある粘着テープから構成されている請求項1記載の
防火用熱膨張材。
2. The thermal expansion material for fire prevention according to claim 1, wherein said holding means is formed of an adhesive tape having an adhesive layer formed on one surface.
【請求項3】 前記粘着テープが、熱膨張性耐熱シール
材の表裏両側面のうち、巻回姿勢で外側に位置する側面
の全域に貼り付けられている請求項2記載の防火用熱膨
張材。
3. The thermal expansion material for fire prevention according to claim 2, wherein the pressure-sensitive adhesive tape is affixed to the entire area of the side surface located outside in the winding posture among the front and back side surfaces of the heat-expandable heat-resistant sealing material. .
【請求項4】 前記粘着テープが、熱膨張性耐熱シール
材の表裏両側面のうち、巻回姿勢で外側に位置する側面
の一部に貼り付けられている請求項2記載の防火用熱膨
張材。
4. The thermal expansion for fire prevention according to claim 2, wherein the pressure-sensitive adhesive tape is affixed to a part of a side surface located outside in a winding position among both front and back surfaces of the heat-expandable heat-resistant sealing material. Wood.
【請求項5】 前記粘着テープの粘着剤層のうち、熱膨
張性耐熱シール材の巻回方向の一端から突出する部位の
粘着剤層部分には離型紙が貼り付けられている請求項2
〜4のいずれか1項に記載の防火用熱膨張材。
5. A release paper is attached to a portion of the pressure-sensitive adhesive layer of the pressure-sensitive adhesive tape that protrudes from one end of the heat-expandable heat-resistant sealing material in the winding direction.
The thermal expansion material for fire prevention according to any one of Items 1 to 4, wherein
【請求項6】 前記粘着テープのテープ基材が金属箔か
ら構成されている請求項2〜5のいずれか1項に記載の
防火用熱膨張材。
6. The thermal expansion material for fire prevention according to claim 2, wherein the tape base of the pressure-sensitive adhesive tape is made of a metal foil.
【請求項7】 前記粘着テープのテープ基材の表面に
は、適用可能な管様体の情報が印刷されている請求項2
〜6のいずれか1項に記載の防火用熱膨張材。
7. The information of the applicable tubular body is printed on the surface of the tape base of the adhesive tape.
7. The thermal expansion material for fire prevention according to any one of items 6 to 6.
【請求項8】 前記熱膨張性耐熱シール材が、該熱膨張
性耐熱シール材の熱膨張を許容する合成樹脂製のフイル
ムで被覆されている請求項1〜7のいずれか1項に記載
の防火用熱膨張材。
8. The heat-expandable heat-resistant seal material according to claim 1, wherein the heat-expandable heat-resistant seal material is covered with a film made of a synthetic resin that allows thermal expansion of the heat-expandable heat-resistant seal material. Thermal expansion material for fire protection.
【請求項9】 前記熱膨張性耐熱シール材には、貫通孔
の開口周縁部に対して孔軸芯方向から接当することによ
り、熱膨張性耐熱シール材の貫通孔内への挿入位置を規
制する装着位置規制手段が付設されている請求項1〜8
のいずれか1項に記載の防火用熱膨張材。
9. An insertion position of the heat-expandable heat-resistant seal material into the through-hole by contacting the heat-expandable heat-resistant seal material with respect to an opening peripheral portion of the through-hole from a hole axis direction. 9. A mounting position restricting means for restricting is provided.
The thermal expansion material for fire prevention according to any one of the above.
【請求項10】 前記装着位置規制手段が、熱膨張性耐
熱シール材に対して脱着自在に構成されている請求項9
記載の防火用熱膨張材。
10. The mounting position regulating means is configured to be detachable from a heat-expandable heat-resistant sealing material.
The thermal expansion material for fire prevention according to the above.
JP11040186A 1999-02-18 1999-02-18 Thermal expansion material for fire protection Pending JP2000240854A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11040186A JP2000240854A (en) 1999-02-18 1999-02-18 Thermal expansion material for fire protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11040186A JP2000240854A (en) 1999-02-18 1999-02-18 Thermal expansion material for fire protection

Publications (1)

Publication Number Publication Date
JP2000240854A true JP2000240854A (en) 2000-09-08

Family

ID=12573760

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
JP (1) JP2000240854A (en)

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