JP2008136581A - Fireproof instrument for long body penetration hole - Google Patents

Fireproof instrument for long body penetration hole Download PDF

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JP2008136581A
JP2008136581A JP2006324023A JP2006324023A JP2008136581A JP 2008136581 A JP2008136581 A JP 2008136581A JP 2006324023 A JP2006324023 A JP 2006324023A JP 2006324023 A JP2006324023 A JP 2006324023A JP 2008136581 A JP2008136581 A JP 2008136581A
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hole
concrete
annular frame
long
support piece
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JP4753850B2 (en
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Takehito Kashima
毅人 鹿島
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Inaba Denki Sangyo Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fireproof instrument for a long body penetration hole which surely and effectively improves concrete adhesive power generated between the instrument and the inner periphery of the long body penetration hole. <P>SOLUTION: An annular frame 1 is attached to a long body penetration hole A formed on the floor board S in such a manner that the annular frame covers the inner periphery of the hole by concrete adhesive power generated between the frame and the inner periphery of the long body penetration hole A. The annular frame has receive and support pieces 2 for receiving and supporting fireproof filling materials 4 in an annular space between the outer periphery of the inserted long body P and the inner periphery 1a of the annular frame 1 and assist and adhesive pieces 3 that generate concrete adhesive power between themselves and the periphery of an opening of the long body penetration hole A located on the lower surface S1 of the floor board S. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、床板に形成される長尺体貫通用孔を通じて火炎や煙が伝播するのを防止するために長尺体貫通用孔に取り付けて使用される長尺体貫通用孔防火措置具に関し、詳しくは、長尺体貫通用孔の孔内周面との間で発生するコンクリート付着力により孔内周面を被覆する状態で長尺体貫通用孔に取り付けられる環状枠体に、これに挿通された長尺体の外周面と環状枠体の内周面との間の環状空間で耐火充填材を受け止め支持可能な受止支持片部が形成されている長尺体貫通用孔防火措置具に関する。   [Technical Field] The present invention relates to a long-body through-hole fire prevention device that is used by being attached to a long-body through-hole in order to prevent flame and smoke from propagating through the long-body through-hole formed in a floor board. Specifically, an annular frame attached to the long body penetration hole in a state of covering the inner peripheral surface of the hole with the concrete adhesion force generated between the long body penetration hole and the hole inner peripheral surface. A long body through-hole fire prevention measure in which a receiving support piece is formed that can receive and support a refractory filler in an annular space between the outer peripheral surface of the inserted long body and the inner peripheral surface of the annular frame. Concerning ingredients.

この種の長尺体貫通用孔防火措置具は、前記環状枠体の外周面と長尺体貫通用孔の孔内周面とを前記コンクリート付着力(例えば、床板自体を成形するコンクリートや長尺体貫通用孔の周縁部を成形するために床板との間に充填される充填モルタルなどの付着力)で密着させることにより、長尺体貫通用孔への取り付けと合せて、それらの間に隙間ができるのを抑止するとともに、前記受止支持片部に前記耐火充填材を受け止め支持させることにより環状枠体の内周面と長尺体の外周面との間を閉塞し、これにより、長尺体貫通用孔を確実に閉塞して、長尺体貫通用孔を通じて火炎や煙が伝播するのを防止するものである。   This type of long-body through-hole fire-protecting device is formed by connecting the outer peripheral surface of the annular frame and the inner peripheral surface of the long-body through-hole to the concrete adhesion force (for example, concrete or In order to form the peripheral edge of the hole for penetrating the long body, the adhesive is attached to the floor board with an adhesive force such as filling mortar). In addition, the gap between the inner peripheral surface of the annular frame and the outer peripheral surface of the elongated body is blocked by receiving and supporting the refractory filler on the receiving support piece. The long body through hole is reliably closed to prevent the flame and smoke from propagating through the long body through hole.

そして、従来、この種の長尺体貫通用孔防火措置具では、前記環状枠体の外周面の上下方向中間部に周方向に延びる凸条を形成することで、その凸状をコンクリート製の床板に埋め込ませる形態で長尺体貫通用孔と環状枠体との付着面積を増大させて、長尺体貫通用孔と環状枠体との間のコンクリート付着力を高く確保し、これにより、火災時の火炎や熱による環状枠体の変形を抑止して、長尺体貫通用孔と環状枠体との間に隙間ができるのを抑止したものが知られている。(下記特許文献1参照)
特開2001−353229号公報
And conventionally, in this kind of long-body through-hole fire prevention tool, the convex shape is made of concrete by forming a ridge extending in the circumferential direction in the middle portion in the vertical direction of the outer peripheral surface of the annular frame. Increasing the adhesion area between the elongated body penetration hole and the annular frame body in the form embedded in the floor plate, ensuring a high concrete adhesion force between the elongated body penetration hole and the annular frame body, It is known that the deformation of the annular frame due to a flame or heat at the time of a fire is suppressed to prevent a gap from being formed between the elongated body penetration hole and the annular frame. (See Patent Document 1 below)
JP 2001-353229 A

ところが、上記の如き従来の長尺体貫通用孔防火措置具では、床板を成形するコンクリート(すなわち、前記コンクリート付着力を発生させるコンクリート)を打設するとき、環状枠体の外周面に形成された凸条の周囲(特に下方部位)にコンクリートが回り込み難いことから、その凸条の周囲でコンクリートの充填精度が低下してクラックやジャンカなどの不良が発生してしまい、そのことで、長尺体貫通用孔との間で発生するコンクリート付着力が却って低くなって、火災時の火炎や熱による環状枠体の変形により長尺体貫通用孔と環状枠体との間に隙間が生じ易くなったり、或いは、床板の強度が低くなったりする問題あった。   However, in the conventional long-body through-hole fire prevention device as described above, when the concrete for forming the floorboard (that is, the concrete that generates the concrete adhesion force) is placed, it is formed on the outer peripheral surface of the annular frame. Since it is difficult for the concrete to go around the ridges (particularly the lower part), the concrete filling accuracy is reduced around the ridges, resulting in defects such as cracks and jumpers. The concrete adhesive force generated between the through hole for the body is rather low, and a gap is likely to be generated between the long body through hole and the annular frame due to the deformation of the annular frame due to a flame or heat during a fire. Or the strength of the floorboard is low.

この実情に鑑み、本発明の主たる課題は、長尺体貫通用孔との間で発生するコンクリート付着力を確実且つ効果的に高めることのできる長尺体貫通用孔防火措置具を提供する点にある。   In view of this situation, the main problem of the present invention is to provide a long-body through-hole fire prevention device that can reliably and effectively enhance the concrete adhesion force generated between the long-body through-hole. It is in.

本発明の第1特徴構成は長尺体貫通用孔防火措置具に係り、その特徴は、
床板に形成される長尺体貫通用孔の孔内周面との間で発生するコンクリート付着力により孔内周面を被覆する状態で長尺体貫通用孔に取り付けられる環状枠体に、これに挿通された長尺体の外周面と環状枠体の内周面との間の環状空間で耐火充填材を受け止め支持可能な受止支持片部と、前記床板の下面における長尺体貫通用孔の孔口周縁部との間でコンクリート付着力を発生可能な補助付着片部とが形成されている点にある。
The first characteristic configuration of the present invention relates to a long-body through-hole fire prevention measure,
An annular frame attached to the long body through hole in a state where the inner peripheral surface of the hole is covered with the concrete adhesive force generated between the long body through hole formed in the floor plate and the inner peripheral surface. A receiving support piece that can receive and support the refractory filler in an annular space between the outer peripheral surface of the elongated body inserted through the inner peripheral surface of the annular frame, and for passing the elongated body on the lower surface of the floor plate The auxiliary adhesion piece part which can generate | occur | produce a concrete adhesion force between the hole edge peripheral part of a hole exists in the point formed.

上記特徴構成によれば、環状枠体と長尺体貫通用孔の孔内周面との間でのコンクリート付着力に加えて、前記補助付着片部と前記床板の下面との間でコンクリート付着力を発生させることができるから、先述の従来の長尺体貫通用孔防火措置具の如く、前記コンクリート付着力を発生させるコンクリートにクラックやジャンカなどの不良が発生するのを回避しながら、長尺体貫通用孔との間でのコンクリ−ト付着力を確実且つ効果的に高めることができる。   According to the above characteristic configuration, in addition to the concrete adhesion force between the annular frame body and the inner peripheral surface of the elongated body penetration hole, the concrete attachment is provided between the auxiliary adhesion piece portion and the lower surface of the floor board. Since it is possible to generate an adhesion force, it is possible to prevent the occurrence of defects such as cracks and jumpers in the concrete that generates the above-mentioned concrete adhesion force, as in the conventional long-body through-hole fire prevention measures described above. It is possible to reliably and effectively increase the concrete adhesion force with the scale body through hole.

本発明の第2特徴構成は、第1特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、
前記補助付着片部には、前記コンクリート付着力を発生させるコンクリートをそれの打設時において受け止めるコンクリート受止板に対して仮固定するための仮固定部が備えられている点にある。
The second feature configuration of the present invention specifies an embodiment suitable for the implementation of the first feature configuration.
The auxiliary adhering piece portion is provided with a temporary fixing portion for temporarily fixing the concrete generating the concrete adhering force to a concrete receiving plate for receiving the concrete at the time of placing.

つまり、例えば、前記仮固定部が前記受止支持片部に備えられている場合では、前記コンクリート受止板への仮固定作業を環状枠体の内側から行う必要がある。   That is, for example, in the case where the temporary fixing portion is provided in the receiving support piece portion, it is necessary to perform temporary fixing work on the concrete receiving plate from the inside of the annular frame.

それに対し、仮固定部が前記補助付着片部に備えられている上記特徴構成であれば、前記コンクリート受止板への仮固定作業を環状枠体の外側から行うことができるから、上述の如く仮固定部が前記受止支持片部に備えられている場合に比べ、仮固定作業のための作業空間を広く確保することができて、作業内容の簡略化と作業時間の短縮化を図ることができる。   On the other hand, if the temporary fixing portion is provided in the auxiliary attachment piece portion, the temporary fixing operation to the concrete receiving plate can be performed from the outside of the annular frame. Compared to the case where the temporary fixing part is provided in the receiving support piece part, a work space for the temporary fixing work can be secured widely, and the work content can be simplified and the working time can be shortened. Can do.

本発明の第3特徴構成は、第1又は第2特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、
前記受止支持片部の先端部が曲面形状に形成されている点にある。
The third feature configuration of the present invention specifies an embodiment suitable for the implementation of the first or second feature configuration.
The tip of the receiving support piece is formed in a curved shape.

上記特徴構成によれば、例えば、前記受止支持片部の先端部に角部が形成されている場合に比べ、受止支持片部の先端部と長尺体の外周面との接触抵抗を小さくすることができるから、長尺体を環状枠体に挿通する挿通操作を極力スムーズに行うことができる。   According to the above characteristic configuration, for example, the contact resistance between the distal end portion of the receiving support piece portion and the outer peripheral surface of the elongated body is reduced as compared with a case where a corner portion is formed at the distal end portion of the receiving support piece portion. Since it can be made small, the insertion operation of inserting the long body into the annular frame can be performed as smoothly as possible.

また、受止支持片部の先端部と長尺体の外周面との接触によって長尺体に破損が生じることも効果的に抑止することができる。   In addition, it is possible to effectively prevent the long body from being damaged by the contact between the distal end portion of the receiving support piece portion and the outer peripheral surface of the long body.

本発明の第4特徴構成は、第3特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、
前記受止支持片部の先端側を折り返す形態に折り曲げることにより受止支持片部の先端部が曲面形状に形成されている点にある。
The fourth feature configuration of the present invention specifies an embodiment suitable for the implementation of the third feature configuration.
The distal end portion of the receiving support piece portion is formed in a curved shape by bending the distal end side of the receiving support piece portion into a folded shape.

上記特徴構成によれば、前記受止支持片部の先端部が曲面形状に形成するのに合せて、受止支持片部の体積を増加させることができるから、その体積の増加分、受止支持片部の強度を効果的に高めることができて、受止支持片部の変形を抑止することができ、これにより、受止支持片部の変形により受止支持片部に受け止め支持させた耐火充填材が不測に脱落したりするなどの不具合を効果的に抑止することができる。   According to the above characteristic configuration, the volume of the receiving support piece portion can be increased as the tip end portion of the receiving support piece portion is formed in a curved shape. The strength of the support piece portion can be effectively increased, and the deformation of the receiving support piece portion can be suppressed, whereby the receiving support piece portion is received and supported by the deformation of the receiving support piece portion. It is possible to effectively suppress problems such as accidental dropping of the refractory filler.

本発明の第5特徴構成は、第4特徴構成の実施に好適な実施形態を特定するものであり、その特徴は、
前記環状枠体の下端部を内側に折り曲げることにより前記受止支持片部が形成され、その受止支持片部の先端側を折り返す形態に外側に折り曲げることにより前記補助付着片部が形成されている点にある。
The fifth feature configuration of the present invention specifies an embodiment suitable for the implementation of the fourth feature configuration.
The receiving support piece portion is formed by bending the lower end portion of the annular frame body inward, and the auxiliary attachment piece portion is formed by bending the tip end side of the receiving support piece portion outward. There is in point.

上記特徴構成によれば、前記受止支持片部と前記補助付着片部が前記環状枠体に一体的に構成されているから、例えば、受止支持片部と補助付着片部を環状枠体とは別部材として構成して、環状枠体に取り付ける場合に比べ、受止支持片部と補助付着片部が環状枠体から不測に離脱してしまうなどの不具合を確実に防止することができる。   According to the above characteristic configuration, since the receiving support piece and the auxiliary attachment piece are integrally formed with the annular frame, for example, the receiving support piece and the auxiliary attachment piece are connected to the annular frame. It is possible to reliably prevent problems such as the receiving support piece portion and the auxiliary attachment piece portion being unexpectedly detached from the annular frame body as compared with the case where it is configured as a separate member and attached to the annular frame body. .

しかも、受止支持片部を2層構造にする形態で受止支持片部の体積を一層増加させることができるから、その体積の増加分、受止支持片部の強度を一層効果的に高めることができて、受止支持片部の変形を一層抑止することができ、これにより、受止支持片部の変形により受止支持片部に受け止め支持させた耐火充填材が不測に脱落したりするなどの不具合を一層効果的に抑止することができる。   In addition, since the volume of the receiving support piece portion can be further increased in the form of the receiving support piece portion having a two-layer structure, the strength of the receiving support piece portion is further effectively increased by the increase in the volume. It is possible to further suppress the deformation of the receiving support piece, and thereby the fireproof filler that is received and supported by the receiving support piece due to the deformation of the receiving support piece is accidentally dropped off. It is possible to more effectively suppress problems such as

本発明の第6特徴構成は、第1〜第5特徴構成のいずれかの実施に好適な実施形態を特定するものであり、その特徴は、
前記環状枠体が複数の枠体形成片から構成されているとともに、それら複数の枠体形成片を連結する連結部が外方に突出する形態に構成されている点にある。
The sixth characteristic configuration of the present invention specifies an embodiment suitable for the implementation of any of the first to fifth characteristic configurations,
The annular frame body is composed of a plurality of frame body forming pieces, and a connecting portion that connects the plurality of frame body forming pieces is configured to protrude outward.

上記特徴構成によれば、例えば、前記環状枠体が単一の部材から構成されている場合に比べ、運搬時の占有体積を小さくすることができるから、製作現場からの運搬効率を効果的に向上させることができる。   According to the above characteristic configuration, for example, the occupied volume at the time of transportation can be reduced as compared with the case where the annular frame is composed of a single member. Can be improved.

しかも、複数の枠体形成片を連結する連結部が外方に突出する形態に構成されているから、その外方に突出する連結部の表面積の分だけ長尺体貫通用孔の孔内周面との付着面積を広く確保することができ、これにより、長尺体貫通用孔との間でのコンクリート付着力を一層効果的に高めることができる。   In addition, since the connecting portion that connects the plurality of frame forming pieces is configured to protrude outward, the inner circumference of the hole for penetrating the elongated body is equal to the surface area of the connecting portion protruding outward. A wide adhesion area with the surface can be ensured, whereby the concrete adhesion force between the elongated body penetrating holes can be more effectively increased.

図1〜図4は、複数の空調配管や電気ケーブル等の長尺体Pを床板S(本例では、コンクリート製)を貫通させる目的で床板Sに形成される長尺体貫通用孔Aに取り付けられる長尺体貫通用孔防火措置具Tを示し、この長尺体貫通用孔防火措置具Tは、長尺体貫通用孔Aの孔内周面との間で発生するコンクリート付着力により孔内周面を被覆する状態で長尺体貫通用孔Aに取り付けられる板金製の環状枠体1に、これに挿通された長尺体Pの外周面と環状枠体1の内周面1aとの間の環状空間sで耐火充填材4(図7、8を参照)を受け止め支持可能な複数の受止支持片部2と、床板Sの下面S1における長尺体貫通用孔Aの孔口周縁部との間でコンクリート付着力を発生可能な複数の補助付着片部3とを形成して構成されている。   1 to 4 show a long body penetration hole A formed in the floor board S for the purpose of penetrating the long body P such as a plurality of air conditioning pipes and electric cables through the floor board S (made of concrete in this example). 1 shows a long-body through-hole fire prevention device T to be attached, and this long-body through-hole fire prevention device T is caused by a concrete adhesive force generated between the long body through-hole A and the inner peripheral surface of the hole. An outer peripheral surface of the long body P inserted through the annular frame 1 made of sheet metal attached to the long body penetration hole A in a state of covering the inner peripheral surface of the hole and an inner peripheral surface 1a of the annular frame 1. A plurality of receiving support piece portions 2 capable of receiving and supporting the refractory filler 4 (see FIGS. 7 and 8) in the annular space s, and a hole in the elongated body penetration hole A on the lower surface S1 of the floor board S. A plurality of auxiliary attachment pieces 3 capable of generating a concrete adhesion force with the peripheral edge of the mouth are formed.

前記環状枠体1は、上下両端面に長尺体挿通用の開口部1c、1dを有する平面視略長方形の箱型形状に構成されており、その内周面1aの下端部には、複数の前記受止支持片部2が環状に配置形成されているとともに、外周面1bの下端部には、複数の前記補助付着片部3が略環状に配置形成され、更に、外周面1bの上端部には、環状枠体1の上端面の開口部1cを一時的に閉塞するコンクリート型枠用合板製などの蓋体6(例えば、図7、図8を参照)を取り付けるための蓋体取付片部5が環状に配置形成されている。   The annular frame 1 is configured in a box shape having a substantially rectangular shape in plan view having openings 1c and 1d for inserting a long body on both upper and lower end faces. The receiving support piece portion 2 is annularly formed, and a plurality of the auxiliary attachment piece portions 3 are substantially annularly formed at the lower end portion of the outer peripheral surface 1b. Further, the upper end of the outer peripheral surface 1b is formed. A lid attachment for attaching a lid 6 (for example, see FIGS. 7 and 8) made of a plywood for concrete mold that temporarily closes the opening 1c on the upper end surface of the annular frame 1 The piece 5 is arranged and formed in an annular shape.

具体的には、前記環状枠体1は、複数の枠体形成片としての一対の側面視略長方形状の長辺板部材1Aと一対の側面視略正方形状の短片板部材1Bとをボルトやナット等の締結手段7により連結して構成されていて、それら長辺板部材1Aと短片板部材1Bの各々の下端部に、前記受止支持片部2が、枠体連結時において環状枠体1の内周面1aの下端部に環状に配置される形態に内向き略水平姿勢で突出形成されているとともに、前記補助付着片部3が、枠体連結時において環状枠体1の外周面1bの下端部に環状に配置される形態に外向き略水平姿勢に突出されている。   Specifically, the annular frame 1 includes a pair of substantially rectangular long side plate members 1A and a pair of substantially square short piece plate members 1B as side surfaces. It is configured to be connected by a fastening means 7 such as a nut, and the receiving support piece 2 is connected to the lower end of each of the long side plate member 1A and the short piece plate member 1B when the frame is connected. 1 is formed so as to protrude in a generally horizontal posture in an annularly arranged manner at the lower end of the inner peripheral surface 1a, and the auxiliary attachment piece 3 is an outer peripheral surface of the annular frame 1 when the frame is connected. It protrudes in a substantially horizontal posture outward in a form that is annularly arranged at the lower end of 1b.

また、長辺板部材1Aと短片板部材1Bの各々の上端部には、前記蓋体取付片部5が、枠体連結時において環状枠体1の外周面1bの上端部に環状に配置される形態に外向き略水平姿勢で突出形成されている。   In addition, at the upper end of each of the long side plate member 1A and the short piece plate member 1B, the lid attaching piece 5 is annularly arranged at the upper end of the outer peripheral surface 1b of the annular frame 1 when the frame is connected. And projecting outward in a substantially horizontal posture.

つまり、前記受止支持片部2は、その上面部で後述する耐火充填材4を受け止め支持可能に構成され、前記補助付着片部3は、その上面部で床板Sの下面S1における長尺体貫通用孔Aの孔口周縁部に付着可能に構成され、前記蓋体取付片部5は、その上面部で蓋体6を取付可能に構成されている。   That is, the receiving support piece 2 is configured to receive and support a refractory filler 4 to be described later on its upper surface, and the auxiliary attachment piece 3 is a long body on the lower surface S1 of the floor board S on its upper surface. The lid body attaching piece 5 is configured to be attachable to the peripheral edge of the hole A of the penetrating hole A, and the lid body 6 can be attached to the upper surface portion thereof.

すなわち、この長尺体貫通用孔防火措置具Tは、環状枠体1と長尺体貫通用孔Aの孔内周面との間でのコンクリート付着力に加えて、補助付着片部3の上面と床板Sの下面S1との間でコンクリート付着力を発生させて、長尺体貫通用孔1との間でのコンクリ−ト付着力を高く確保する。   That is, the long body through-hole fire-protecting measure T has the auxiliary adhesion piece 3 in addition to the concrete adhesion force between the annular frame 1 and the inner circumferential surface of the long-body penetration hole A. A concrete adhesion force is generated between the upper surface and the lower surface S1 of the floor board S to ensure a high concrete adhesion force with the elongated body penetration hole 1.

また、長片板部材1Aに形成された補助付着片部5には、前記コンクリート付着力を発生させるコンクリート(本例では、床板Sを成形するコンクリート)をそれの打設時において受け止めるコンクリート受止板8に対して釘、ビス、ネジ等の仮固定具9により仮固定するための仮固定部としての挿通孔が多数形成されており、具体的には、コンクリート受止板8の一例であるコンクリート型枠用合板に仮固定するための小径の一対の第1挿通孔10aと、コンクリート受止板8の一例であるデッキプレートに仮固定するための第1挿通孔10aよりも大径の一対の第2挿通孔10bとが形成されている。   Further, the auxiliary adhering piece portion 5 formed on the long piece plate member 1A has a concrete receiving portion for receiving the concrete (in this example, the concrete for forming the floor board S) that generates the concrete adhering force when it is placed. A large number of insertion holes are formed as temporary fixing portions for temporarily fixing the plate 8 with temporary fixing tools 9 such as nails, screws, screws and the like. Specifically, this is an example of the concrete receiving plate 8. A pair of first insertion holes 10a having a small diameter for temporarily fixing to a concrete formwork plywood and a pair having a larger diameter than the first insertion hole 10a for temporarily fixing to a deck plate which is an example of a concrete receiving plate 8. The second insertion hole 10b is formed.

そのため、コンクリート受止板8への仮固定作業を環状枠体1の外側から極力広い作業空間を用いて行うことができ、作業内容の簡略化と作業時間の短縮化を図ることができる。   Therefore, the temporary fixing work to the concrete receiving plate 8 can be performed from the outside of the annular frame 1 using a work space that is as wide as possible, and the work content can be simplified and the work time can be shortened.

さらに説明を加えると、受止支持片部2は、図3に示すように、環状枠体1(詳しくは、長辺板部材1A及び短辺板部材1B)の下端部を内側に折り曲げることにより形成されているとともに、補助付着片部3は、受止支持片部2の先端側を折り返す形態に外側に折り曲げることにより形成されている。   Further, as shown in FIG. 3, the receiving support piece 2 is formed by bending the lower end of the annular frame 1 (specifically, the long side plate member 1A and the short side plate member 1B) inward. In addition to being formed, the auxiliary attachment piece 3 is formed by bending outward in a form in which the distal end side of the receiving support piece 2 is folded back.

つまり、受止支持片部2と補助付着片部3が環状枠体1に一体的に構成されているから、受止支持片部2と補助付着片部3が環状枠1から不測に離脱してしまうなどの不具合を確実に防止することができるとともに、受止支持片部2を2層構造にする形態で受止支持片部2の体積を増加させることができるから、その体積の増加分、受止支持片部2の強度を効果的に高めることができて、受止支持片部2の変形を効果的に抑止することができる。   That is, since the receiving support piece 2 and the auxiliary attachment piece 3 are integrally formed with the annular frame 1, the receiving support piece 2 and the auxiliary attachment piece 3 are unexpectedly detached from the annular frame 1. Can be reliably prevented, and the volume of the receiving support piece 2 can be increased in the form of the receiving support piece 2 having a two-layer structure. And the intensity | strength of the receiving support piece part 2 can be raised effectively, and a deformation | transformation of the receiving support piece part 2 can be suppressed effectively.

11は、長辺板部材1Aと短片板部材1Bとを連結する外向き突出形状の縦姿勢の連結部であり、この連結部11は、前記長辺板部材1Aの横方向両端縁部1eと、前記短片板部材1Bの左右方向両端縁部に形成された長辺板部材1Aの横方向両端縁部1eに接合するための外向き突出形状の縦姿勢の接合片部1fとから構成されている。   Reference numeral 11 denotes an outwardly projecting vertically connecting portion that connects the long side plate member 1A and the short piece plate member 1B. The connecting portion 11 includes both end edges 1e in the lateral direction of the long side plate member 1A. , And a longitudinally extending joining piece portion 1f having an outwardly projecting shape for joining to both lateral edge portions 1e of the long side plate member 1A formed at both lateral edge portions of the short piece plate member 1B. Yes.

そして、短片板部材1Bの接合片部1fと長辺板部材1Aの横方向両端縁部1eの各々には、前記締結手段7が挿通可能な挿通孔11aが枠体連結時において相対向する配置で形成されており、短片板部材1Bの接合片部1fと長辺板部材1Aの横方向両端縁部1eの各々を相対向させた状態で締結手段7により短片板部材1Bと長片板部材1Aとを挿通孔11aを通じて締結可能に構成されている。   And the insertion hole 11a in which the said fastening means 7 can be inserted in each of the joining piece part 1f of the short piece board member 1B and the horizontal direction both-ends edge part 1e of the long side board member 1A mutually arrange | positions at the time of a frame body connection. The short piece plate member 1B and the long piece plate member are formed by the fastening means 7 in a state where the joining piece portion 1f of the short piece plate member 1B and the lateral end edges 1e of the long side plate member 1A are opposed to each other. 1A can be fastened through the insertion hole 11a.

そのため、施工現場において短片板部材1Bと長片板部材1Aとを連結する使用形態を採ることにより、運搬時の占有体積を小さくして製作現場からの運搬効率を効果的に向上させることができるとともに、外方に突出する連結部11の表面積の分だけコンクリート製の床板との付着面積を広く確保することがでて、長尺体貫通用孔Aとの間でのコンクリート付着力を一層効果的に高めることができる。   Therefore, by adopting a usage pattern in which the short piece plate member 1B and the long piece plate member 1A are connected at the construction site, the occupied volume at the time of transportation can be reduced, and the transportation efficiency from the production site can be effectively improved. At the same time, it is possible to ensure a large adhesion area with the concrete floor board by the surface area of the connecting portion 11 protruding outward, and the concrete adhesion force with the long body penetration hole A is further effective. Can be enhanced.

なお、2aは、耐火充填材4の種別や長尺体貫通用孔の大きさ等により受止支持片部3よりも内方位置で耐火充填材を受け止める必要がある場合に、適宜に別部材(専用の受止支持部材や木片など)をネジやビスなどの締結具14により取り付けるためのネジ受け孔であり、このネジ受け孔2aは、環状枠体1の長手側の受止支持片部3(すなわち、長辺板部材1Aの受止支持片部3)の中央部の各々に形成されている。   In addition, 2a is another member as appropriate when it is necessary to receive the refractory filler at a position inward of the receiving support piece portion 3 due to the type of the refractory filler 4 and the size of the elongated body penetration hole. This is a screw receiving hole for attaching (a dedicated receiving support member, a piece of wood, or the like) with a fastener 14 such as a screw or a screw. The screw receiving hole 2a is a receiving support piece portion on the longitudinal side of the annular frame 1 3 (that is, the receiving support piece 3 of the long side plate member 1A) is formed at each of the central portions.

次に、長尺体貫通用孔防火措置具T(以下、単に、防火措置具Tと略称する)の使用方法の一例について説明する。   Next, an example of a method for using the long body penetration hole fire prevention tool T (hereinafter simply referred to as fire protection tool T) will be described.

(イ)長尺体貫通用孔Aへの取り付け
図5に示すように、前記コンクリート受止板8(詳しくは、コンクリート型枠用合板)を、床板Sを形成すべき所定位置に配置したのち、防火措置具Tをコンクリート受止板8の所定位置(すなわち、床板Sに長尺体貫通用孔Aを形成する位置)に載置し、環状枠体1に形成された補助付着片部3の挿通孔10(詳しくは、第1挿通孔10a)を通して仮固定具9によりコンクリート受止板8に対して仮固定する。
(A) Attachment to the long body penetration hole A As shown in FIG. 5, after the concrete receiving plate 8 (specifically, the plywood for concrete formwork) is arranged at a predetermined position where the floor plate S is to be formed. The fire protection tool T is placed at a predetermined position of the concrete receiving plate 8 (that is, the position where the long body through hole A is formed in the floor plate S), and the auxiliary attachment piece 3 formed on the annular frame 1 is formed. Is temporarily fixed to the concrete receiving plate 8 by the temporary fixing tool 9 through the insertion hole 10 (specifically, the first insertion hole 10a).

そして、コンクリート受止板8の上方からコンクリートを防火措置具Tの内部に入り込まないように打設し、コンクリートが硬化したのち(詳しくは、所定期間が経過してコンクリートが所定強度に達したのち)、コンクリート受止板8を撤去し、長尺体貫通用孔Aを成形するのと同時に長尺体貫通用孔Aへの防火措置具Tの取り付けを完了する。   After placing concrete from above the concrete receiving plate 8 so as not to enter the fire protection device T, and after the concrete has hardened (specifically, after a certain period of time has passed, the concrete has reached a predetermined strength). ), Removing the concrete receiving plate 8 and forming the elongated body penetration hole A, and at the same time, complete the attachment of the fire protection device T to the elongated body penetration hole A.

つまり、防火措置具Tは、コンクリートの硬化に伴い、長尺体貫通用孔Aの孔内周面と環状枠体1の外周面1bとの間、及び、床板Sの下面S1における長尺体貫通用孔Aの孔口周縁部と環状枠体1の下端部に形成の補助付着片部3の上面との間で夫々発生するコンクリート付着力により長尺体貫通用孔Aに対し取り付けられる。   That is, the fire protection tool T is a long body on the bottom surface S1 between the inner peripheral surface of the long body penetration hole A and the outer peripheral surface 1b of the annular frame 1 and the lower surface S1 of the floor board S as the concrete hardens. It is attached to the elongated body penetration hole A by the concrete adhesion force generated between the peripheral edge of the penetration hole A and the upper surface of the auxiliary attachment piece 3 formed at the lower end of the annular frame 1.

なお、コンクリートを打設するのに先立ち、コンクリート型枠用合板等で形成された蓋体6(図7、図8を参照)を環状枠体1の上端部の蓋体取付片部5に対し取り付けて、環状枠体4の上端面の開口部1cを閉塞しておくのが好ましい。このようにしておけば、コンクリート打設時において環状枠体1の内部にコンクリートが入り込んでしまうのを確実に防止することができるとともに、コンクリート受止板8の撤去後において、作業者が環状枠体1の内部に脚を捕られてしまったり、或いは、作業者が環状枠体1の内部を通じて落下してしまうなどの不具合を防止することができる。   Prior to placing the concrete, the lid body 6 (see FIGS. 7 and 8) formed of a concrete mold plywood or the like is attached to the lid body mounting piece 5 at the upper end of the annular frame body 1. It is preferable to attach and close the opening 1c on the upper end surface of the annular frame 4. In this manner, it is possible to reliably prevent the concrete from entering the inside of the annular frame 1 at the time of placing the concrete, and after the concrete receiving plate 8 is removed, the operator can remove the annular frame. It is possible to prevent problems such as a leg being caught inside the body 1 or an operator falling through the inside of the annular frame 1.

(ロ)防火措置具Tへの長尺体Pの挿通(図6を参照)
長尺体貫通用孔Aへの防火措置具Tの取り付けが完了したあと、まず、長尺体貫通用孔Aに取り付けられた環状枠体1の受止支持片部2に対し、環状枠体1の下端面の開口部1dを被覆する状態で受止支持補助部材としての合成樹脂製(例えば、PP製など)の補助ネット12を貼設する。
(B) Inserting the long body P into the fire protection device T (see FIG. 6)
After the installation of the fire protection device T to the long body penetration hole A is completed, first, the annular frame body with respect to the receiving support piece 2 of the annular frame 1 attached to the long body penetration hole A An auxiliary net 12 made of synthetic resin (for example, made of PP) as a receiving support auxiliary member is attached in a state of covering the opening 1d on the lower end surface of 1.

この補助ネット12は、前記環状枠体1の下端面の開口部1dの開口形状及び開口面積に対応した大きさに形成されているとともに、ネット中央部に長手方向に沿って一連の切り込み12aが予め形成されており、長尺体Pの挿通を許容するように構成されている。   The auxiliary net 12 is formed in a size corresponding to the opening shape and the opening area of the opening 1d at the lower end surface of the annular frame 1, and a series of cuts 12a along the longitudinal direction at the center of the net. It is formed in advance and is configured to allow insertion of the long body P.

次に、防火措置具Tの環状枠体1、及び、貼設された補助ネット12に対して上方又は下方から長尺体Pを挿通させる。このとき、環状枠体1の下端部に形成の受止支持片部2の先端部は曲面形状に構成されているから、受止支持片部2の先端部と長尺体Pの外周面との接触抵抗を小さくすることができて、長尺体Pを環状枠体1に挿通する挿通操作を極力スムーズに行うことができるとともに、受止支持片部2の先端部と長尺体Pの外周面との接触によって長尺体Pに破損が生じることも効果的に抑止することができる。   Next, the elongated body P is inserted from above or below into the annular frame 1 of the fire protection tool T and the auxiliary net 12 attached. At this time, since the tip of the receiving support piece 2 formed at the lower end of the annular frame 1 is formed in a curved shape, the tip of the receiving support piece 2 and the outer peripheral surface of the elongated body P The contact resistance can be reduced, and the insertion operation of inserting the elongated body P through the annular frame 1 can be performed as smoothly as possible. The distal end of the receiving support piece 2 and the elongated body P It is possible to effectively prevent the elongated body P from being damaged by contact with the outer peripheral surface.

(ハ)環状空間sへの耐火充填材Tの充填(図6を参照)
防火措置具Tへの長尺体Pの挿通が完了したあと、環状枠体1の内周面1aと、これに挿通された長尺体Pの外周面との間の環状空間sに対し、大きさの異なる複数サイズ(本例では、3サイズ)の多数の耐火充填材4を充填して環状空間sを閉塞し、長尺体貫通用孔Aの防火措置を完了する(図7、図8の状態)。
(C) Filling the annular space s with the refractory filler T (see FIG. 6)
After the insertion of the elongated body P into the fire protection device T is completed, the annular space s between the inner circumferential surface 1a of the annular frame 1 and the outer circumferential surface of the elongated body P inserted through the annular frame 1, A large number of refractory fillers 4 of different sizes (in this example, 3 sizes) are filled to close the annular space s and complete the fire prevention measures for the elongated body penetration holes A (FIGS. 7 and 7). 8 state).

前記耐火充填材4は、本例では、図6に示すように、耐火材を主体とする耐火ブロックを袋体に袋詰して構成された袋入耐火ブロック4Aと、熱膨張性耐火材を主体とする熱膨張性シートを可撓性の袋体に袋詰して構成された袋入熱膨張性耐火シート4Bとを一体化して構成されており、詳しくは、袋入熱膨張性耐火シート4Bを袋入耐火ブロック4Aに対し袋入耐火ブロック4Aの両端面が露出する状態で巻装するとともに、袋入熱膨張性耐火シート4Bの巻装方向と交差する方向に不織布などで製作された帯状バンド4Cを巻着して構成されている。   As shown in FIG. 6, the fireproof filler 4 includes a fireproof block 4A formed by packing a fireproof block mainly composed of a fireproof material in a bag, and a thermally expandable fireproof material. It is constructed by integrating a bag-containing heat-expandable fireproof sheet 4B formed by packing a heat-expandable sheet as a main body into a flexible bag body. 4B was wound around the fireproof block 4A in a bag while the both end faces of the fireproof block 4A in the bag were exposed, and made of a nonwoven fabric or the like in a direction intersecting with the winding direction of the heat expandable fireproof sheet 4B in the bag. A belt-like band 4C is wound around.

前記耐火ブロックとしては、ロックウールやグラスウールの短繊維どうしを絡ませた綿塊状のものを採用しており、また、前記熱膨張性耐火シートとしては、断熱性を備えるロックウール(耐火性材料の一例)の短繊維を主体に、膨張黒鉛などの熱膨張性材料をパルプ材などの有機性繊維に含浸させたフェルト状のものを採用している。   As the fireproof block, a cotton lump in which short fibers of rock wool or glass wool are entangled is adopted, and as the thermally expandable fireproof sheet, rock wool having heat insulation (an example of a fireproof material) Felt-like materials in which a thermally expandable material such as expanded graphite is impregnated in an organic fiber such as pulp material.

なお、耐火充填材4の充填順序としては、まず、環状空間sの長手方向両端部から充填するのが好ましい。このような順序で充填すれば、長手方向両端部への耐火充填材4の充填により、補助ネット12を引張状態にすることができ、これに続く耐火充填材4の充填作業を行い易くすることができる。   In addition, as a filling order of the refractory filler 4, it is preferable to first fill from both ends in the longitudinal direction of the annular space s. If the filling is performed in this order, the auxiliary net 12 can be brought into a tensile state by filling the both ends in the longitudinal direction with the refractory filler 4 and facilitate the subsequent filling operation of the refractory filler 4. Can do.

〔その他の実施形態〕
(1)前述の第1実施形態の改良として、図9、図10に示すように、環状枠体1の長手側の受止支持片部2の中央部の各々に形成されたネジ受け孔2aに、受止支持片部2よりも内方で耐火充填材4を受止支持可能な板金製の補助受止支持部材13を設けてもよい。
[Other Embodiments]
(1) As an improvement of the above-described first embodiment, as shown in FIGS. 9 and 10, screw receiving holes 2 a formed in each of the central portions of the receiving support piece 2 on the longitudinal side of the annular frame 1. Moreover, you may provide the auxiliary | assistant receiving support member 13 made from a sheet metal which can receive and support the refractory filler 4 inwardly from the receiving support piece part 2.

前記補助受止支持部材13は、図10(イ)、(ロ)に示すように、前記受止支持片部2のネジ受け孔2aを通じてネジ止め可能な取り付け孔13aを有し、受止支持片部2に取り付けた状態で長尺体Pの挿通方向と直交する姿勢で受止支持片部2の内方に突出配置される形態に構成された第1受け片部13Aの先端側に、長尺体の挿通方向と直交する姿勢で第1受け部受止支持片部の内方に突出配置可能な第2受け片部13Bが、長孔の切欠からなる脆弱部13cを介して長尺体から遠ざける側に折り曲げ可能な状態で一体成形されている。   As shown in FIGS. 10 (a) and 10 (b), the auxiliary receiving support member 13 has an attachment hole 13a that can be screwed through the screw receiving hole 2a of the receiving support piece portion 2, and receives the support. On the distal end side of the first receiving piece portion 13A that is configured to protrude inward of the receiving support piece portion 2 in a posture orthogonal to the insertion direction of the long body P in a state attached to the piece portion 2, The second receiving piece portion 13B, which can be arranged to protrude inward of the first receiving portion receiving support piece portion in a posture orthogonal to the insertion direction of the long body, is long through a fragile portion 13c made of a long hole notch. It is integrally molded in a state that it can be bent on the side away from the body.

また、第1受け片部13Aの中央部には、前記補助ネット12の網目に係止可能なネット係止部13bが長尺体Pの挿通方向に沿う起立姿勢に折り曲げ形成されている。   Further, a net locking portion 13b that can be locked to the mesh of the auxiliary net 12 is bent and formed in an upright posture along the insertion direction of the long body P at the central portion of the first receiving piece portion 13A.

つまり、この実施形態では、補助受止支持部材13のネット係止部13bにより、補助ネット12の貼付作業の簡略化と作業時間の短縮化を図ることができる。また、補助受止支持部材13の第1、第2受け片部13A、1Bにも耐火充填材4を受け止め支持させることができるから、特に、長尺体貫通用孔の長手方向長さが大きくなる場合の使用に有効である。   That is, in this embodiment, the net engaging portion 13b of the auxiliary receiving support member 13 can simplify the attaching operation of the auxiliary net 12 and shorten the operation time. Further, since the first and second receiving piece portions 13A and 1B of the auxiliary receiving support member 13 can also receive and support the refractory filler 4, the length in the longitudinal direction of the elongated body penetration hole is particularly large. It is effective for use.

なお、第2受け片部13Bが、長尺体Pの挿通操作の邪魔になる場合には、第2受け片部13Bを長尺体Pから遠ざける側に折り曲げればよい。   In addition, what is necessary is just to bend the 2nd receiving piece part 13B to the side away from the elongate body P, when the 2nd receiving piece part 13B obstructs insertion operation of the elongate body P. As shown in FIG.

(2)前述の実施形態では、環状枠体1が板金製である場合を例に示したが、例えば、プラスチックなどの合成樹脂製や木製などであってもよい。 (2) In the above-described embodiment, the case where the annular frame 1 is made of sheet metal has been described as an example, but may be made of synthetic resin such as plastic or wooden.

(3)環状枠体1の大きさや形状などの具体的構成は、前述の実施形態で示した如き構成に限られるものではなく、種々の構成変更が可能であり、例えば、形状としては、正面視正方形、正面視円形、称面視多角形などの箱型形状であってもよい。 (3) The specific configuration such as the size and shape of the annular frame 1 is not limited to the configuration shown in the above-described embodiment, and various configuration changes are possible. It may be a box shape such as a square in view, a circle in front view, or a polygon in front view.

(4)前述の実施形態では、環状枠体1に受止支持片部2が複数形成されている場合を例に示したが、環状枠体1に受止支持片部2が1つだけ形成されていてもよい。 (4) In the above-described embodiment, the case where a plurality of receiving support piece portions 2 are formed on the annular frame body 1 is shown as an example. However, only one receiving support piece portion 2 is formed on the annular frame body 1. May be.

(5)前述の実施形態では、環状枠体1に補助付着片部が複数形成されている場合を例に示したが、環状枠体1に補助付着片部3が1つだけ形成されていてもよい。 (5) In the above-described embodiment, the case where a plurality of auxiliary attachment pieces are formed on the annular frame 1 is shown as an example, but only one auxiliary attachment piece 3 is formed on the annular frame 1. Also good.

(6)前述の実施形態では、受止支持片部2、補助付着片部3、蓋体取付片部5が環状枠体1に一体成形されている場合を例に示したが、それらの全部又は一部を環状枠体1とは別部材として成形し、環状枠体1に取り付けるようにしてもよい。 (6) In the above-described embodiment, the case where the receiving support piece portion 2, the auxiliary attachment piece portion 3, and the lid attachment piece portion 5 are integrally formed with the annular frame 1 is shown as an example. Alternatively, a part may be formed as a separate member from the annular frame 1 and attached to the annular frame 1.

(7)前述の実施形態では、床板Sがコンクリート製である場合において、床板Sを成形するコンクリートのコンクリート付着力により環状枠体1を長尺体貫通用孔Aに取り付ける場合を例に示したが、例えば、床板Sを発泡コンクリートや不燃ボードなどの材料で構成するとともに、床板Sと環状枠体1との間にモルタルを充填することで、その充填モルタルのコンクリート付着力により環状枠体1を長尺体貫通用孔Aに取り付ける構成にしてもよい。 (7) In the above-described embodiment, in the case where the floor board S is made of concrete, the case where the annular frame 1 is attached to the elongated body penetration hole A by the concrete adhesion force of the concrete that forms the floor board S is shown as an example. However, for example, the floor board S is made of a material such as foamed concrete or incombustible board, and the mortar is filled between the floor board S and the annular frame 1, so that the annular frame 1 is applied by the concrete adhesion force of the filled mortar. May be configured to be attached to the elongated body penetration hole A.

(8)補助ネット12の具体的構成は、前述の実施形態に示した如き構成のものに限らず、種々の構成変更が可能である。 (8) The specific configuration of the auxiliary net 12 is not limited to the configuration shown in the above-described embodiment, and various configuration changes are possible.

(9)前述の実施形態では、受止支持片部2の上面に補助ネット12を貼設する場合を例に示したが、必ずしも補助ネット12を貼設する必要はない。また、補助ネット12に代えて、長尺体Pを挿通可能な開口部を中央に備える板材を設けてもよい。 (9) In the above-described embodiment, the case where the auxiliary net 12 is pasted on the upper surface of the receiving support piece 2 is shown as an example. However, the auxiliary net 12 is not necessarily pasted. Moreover, it may replace with the auxiliary | assistant net | network 12 and may provide the board | plate material provided with the opening part which can penetrate the elongate body P in the center.

(10)前述の実施形態では、受止支持片部2の上面に補助ネット12を一枚だけ貼付する場合を例に示したが、二枚以上貼付してもよい。 (10) In the above-described embodiment, the case where only one auxiliary net 12 is attached to the upper surface of the receiving support piece 2 has been described as an example, but two or more may be attached.

前述の如く、補助ネット12を二枚以上貼付する場合において、例えば、補助ネット12のネット中央部に長手方向に沿う一連の切り込み12aを形成するのに代え、ネット中央からネット一端面に亘るネット一端部に一連の切り込みを形成するとともに、その補助ネット12の二枚を、夫々のネット一端部側から夫々の切り込みに長尺体Pを差し込むことにより、それら二枚の補助ネット12により長尺体Pを挟み込む形態でネット一端部どうしを重合させた重合姿勢で受止支持片部2の上面に貼付する構成にしてもよい。   As described above, when two or more auxiliary nets 12 are attached, for example, instead of forming a series of cuts 12a along the longitudinal direction at the center of the net of the auxiliary net 12, a net extending from the center of the net to one end surface of the net. A series of cuts are formed at one end, and two of the auxiliary nets 12 are inserted into the respective cuts from one end of each net, and the long net P is inserted into each of the cuts. You may make it the structure which affixes on the upper surface of the receiving support piece part 2 in the superposition | positioning attitude | position which superposed | stacked the net one end parts in the form which pinches | interposes the body P.

(11)耐火充填材4は、前述の実施形態に示した如き構成のものに限らず、種々のものを採用できる。 (11) The refractory filler 4 is not limited to the configuration as shown in the above-described embodiment, and various types can be adopted.

なお、耐火充填材4として、例えば、パテ等の流動材を採用する場合には、受止支持片部2に補助ネット12を貼設するのに代えて、パテ等の流動材を受け止め支持可能な板材を設けるのが好適である。   For example, when a fluid material such as putty is used as the refractory filler 4, the fluid material such as putty can be received and supported instead of attaching the auxiliary net 12 to the receiving support piece 2. It is preferable to provide a flat plate material.

本発明に係る長尺体貫通用孔防火措置具を示す斜視図The perspective view which shows the elongate body penetration hole fire prevention tool which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具を示す平面図The top view which shows the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具を示す側面断面図Side surface sectional view which shows the elongate body penetration hole fire prevention tool which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具の分解斜視図The disassembled perspective view of the elongate body penetration hole fire prevention tool which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具の使用方法を示す説明図Explanatory drawing which shows the usage method of the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具の使用方法を示す説明図Explanatory drawing which shows the usage method of the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具の使用方法を示す説明図Explanatory drawing which shows the usage method of the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具の使用方法を示す説明図Explanatory drawing which shows the usage method of the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具のその他の実施形態を示す平面図The top view which shows other embodiment of the hole fire prevention tool for elongate body which concerns on this invention 本発明に係る長尺体貫通用孔防火措置具のその他の実施形態を示す要部斜視図The principal part perspective view which shows other embodiment of the hole fire prevention tool for elongate body which concerns on this invention

符号の説明Explanation of symbols

S 床板
S1 床板の下面
A 長尺体貫通用孔
P 長尺体
T 長尺体貫通用孔防火措置具
1 環状枠体
1a 環状枠体の内周面
1A、1B 枠体形成片(長辺板部材、短辺板部材)
2 受止支持片部
3 補助付着片部
4 耐火充填材
10a、10b 仮固定部(挿通孔)
11 連結部
s 環状空間
DESCRIPTION OF SYMBOLS S Floor board S1 Lower surface A of a floor board Long hole penetration hole P Long body T Long body penetration hole Fire prevention tool 1 Annular frame 1a Inner peripheral surface 1A of an annular frame 1B Frame formation piece (long side plate Member, short side plate member)
2 Supporting support piece 3 Auxiliary adhering piece 4 Refractory filler 10a, 10b Temporary fixing part (insertion hole)
11 connecting part s annular space

Claims (6)

床板に形成される長尺体貫通用孔の孔内周面との間で発生するコンクリート付着力により孔内周面を被覆する状態で長尺体貫通用孔に取り付けられる環状枠体に、これに挿通された長尺体の外周面と環状枠体の内周面との間の環状空間で耐火充填材を受け止め支持可能な受止支持片部と、前記床板の下面における長尺体貫通用孔の孔口周縁部との間でコンクリート付着力を発生可能な補助付着片部とが形成されている長尺体貫通用孔防火措置具。   An annular frame attached to the long body through hole in a state where the inner peripheral surface of the hole is covered with the concrete adhesive force generated between the long body through hole formed in the floor plate and the inner peripheral surface. A receiving support piece that can receive and support the refractory filler in an annular space between the outer peripheral surface of the elongated body inserted through the inner peripheral surface of the annular frame, and for passing the elongated body on the lower surface of the floor plate A long-body through-hole fire-protecting device in which an auxiliary adhering piece portion capable of generating a concrete adhering force is formed between the peripheral edge of the hole. 前記補助付着片部には、前記コンクリート付着力を発生させるコンクリートをそれの打設時において受け止めるコンクリート受止板に対して仮固定するための仮固定部が備えられている請求項1記載の長尺体貫通用孔防火措置具。   The length of claim 1, wherein the auxiliary adhering piece portion is provided with a temporary fixing portion for temporarily fixing the concrete that generates the concrete adhering force to a concrete receiving plate that receives the concrete when the concrete is placed. Hole fire prevention tool for penetrating the scale. 前記受止支持片部の先端部が曲面形状に形成されている請求項1又は2記載の長尺体貫通用孔防火措置具。   The long-body through-hole fire prevention measure according to claim 1 or 2, wherein a tip end portion of the receiving support piece is formed in a curved shape. 前記受止支持片部の先端側を折り返す形態に折り曲げることにより受止支持片部の先端部が曲面形状に形成されている請求項3記載の長尺体貫通用孔防火措置具。   The elongate body through-hole fire prevention device according to claim 3, wherein the tip end portion of the receiving support piece portion is formed in a curved shape by bending the tip end side of the receiving support piece portion into a folded shape. 前記環状枠体の下端部を内側に折り曲げることにより前記受止支持片部が形成され、その受止支持片部の先端側を折り返す形態に外側に折り曲げることにより前記補助付着片部が形成されている請求項4記載の長尺体貫通用孔防火措置具。   The receiving support piece portion is formed by bending the lower end portion of the annular frame body inward, and the auxiliary attachment piece portion is formed by bending the tip end side of the receiving support piece portion outward. The long-body through-hole fire prevention device according to claim 4. 前記環状枠体が複数の枠体形成片から構成されているとともに、それら複数の枠体形成片を連結する連結部が外方に突出する形態に構成されている請求項1〜5のいずれか1項に記載の長尺体貫通用孔防火措置具。   The said annular frame is comprised from the some frame formation piece, and the connection part which connects these some frame formation pieces is comprised in the form which protrudes outside, either of Claims 1-5 Item 1. A long-body through-hole fire prevention device according to item 1.
JP2006324023A 2006-11-30 2006-11-30 Hole fire prevention tool for long body penetration Expired - Fee Related JP4753850B2 (en)

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Publication number Priority date Publication date Assignee Title
AT514212A1 (en) * 2013-05-06 2014-11-15 Bettermann Obo Gmbh & Co Kg Installation box
CN104652814A (en) * 2015-01-23 2015-05-27 上海建工五建集团有限公司 Locating structure and locating method for pre-burying electrical upturning pipes in concrete guide wall
JP2019206895A (en) * 2018-05-30 2019-12-05 株式会社オカゾエ製作所 Penetration frame

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Publication number Priority date Publication date Assignee Title
AT514212A1 (en) * 2013-05-06 2014-11-15 Bettermann Obo Gmbh & Co Kg Installation box
AT514212B1 (en) * 2013-05-06 2015-01-15 Bettermann Obo Gmbh & Co Kg Installation box
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JP2019206895A (en) * 2018-05-30 2019-12-05 株式会社オカゾエ製作所 Penetration frame

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