JP2003328700A - Sag preventive hanger for air duct, and air duct having sag preventive hanger - Google Patents
Sag preventive hanger for air duct, and air duct having sag preventive hangerInfo
- Publication number
- JP2003328700A JP2003328700A JP2002132806A JP2002132806A JP2003328700A JP 2003328700 A JP2003328700 A JP 2003328700A JP 2002132806 A JP2002132806 A JP 2002132806A JP 2002132806 A JP2002132806 A JP 2002132806A JP 2003328700 A JP2003328700 A JP 2003328700A
- Authority
- JP
- Japan
- Prior art keywords
- hanger
- wind
- wind pipe
- air duct
- clock
- 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.)
- Granted
Links
Landscapes
- Supports For Pipes And Cables (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、風管用垂れ防止ハ
ンガーおよび垂れ防止ハンガーを備えた風管に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drip prevention hanger for a wind pipe and a wind pipe provided with the drip prevention hanger.
【０００２】[0002]
【従来の技術】一般に、トンネル工事では、図７（Ａ）
（Ｂ）に示すように、切羽などの作業現場へ新鮮空気を
送り込んだり、現場の汚れた空気を排気するために風管
Ｄが使用されている。この風管Ｄは、例えば、ポリエス
テル等の高張力の合成樹脂などの繊維で織成された芯材
布の両面をポリ塩化ビニル等の樹脂で被覆した生布を、
約３００〜２,０００ｍｍφの直径を有する長さ約１０
ｍの管状に加工したものであり、トンネルの長さに応じ
て接続して使用される。2. Description of the Related Art Generally, in tunnel construction, FIG.
As shown in (B), a wind pipe D is used for sending fresh air to a work site such as a face and exhausting dirty air at the site. This wind tube D is, for example, a raw cloth in which both surfaces of a core material cloth woven with fibers such as high tension synthetic resin such as polyester are covered with resin such as polyvinyl chloride,
Length about 10 with diameter of about 300-2,000 mmφ
It is processed into a tubular shape of m and is used by connecting according to the length of the tunnel.
【０００３】ところで、上記種類の風管Ｄは、一日の掘
削作業等が終了して空気の送排気の必要がなくなれば、
上記送排気装置Ｂの運転を停止する。送排気が停止され
ると、図７（Ｃ）に示すように、風管Ｄは垂れ下がる。
近年、特に小断面のトンネルでは、風管Ｄが垂れ下がる
と、その下を通行する作業車Ｍが接触して破損事故等を
招く虞があった。By the way, the wind pipe D of the above-mentioned type is provided when the excavation work for one day is completed and the need for air supply and exhaust is eliminated.
The operation of the air supply / exhaust device B is stopped. When the air supply / exhaust is stopped, the air duct D hangs down as shown in FIG. 7 (C).
In recent years, especially in a tunnel having a small cross section, when the wind pipe D hangs down, the work vehicle M passing under the wind pipe D may come into contact with the work vehicle M and cause a damage accident or the like.
【０００４】[0004]
【発明が解決しようとする課題】上述のような破損事故
等を防止するため、従来、図７（Ｄ）に示すように、風
管Ｄの下にネットＮを張装して、その垂れ下がりを防止
していた。しかしながら、ネットＮの設置には時間と労
力がかかるだけでなく、風管Ｄの交換や撤去の際にネッ
トＮも取り外さなければならない等の問題点があった。In order to prevent the above-mentioned damage accidents and the like, conventionally, as shown in FIG. 7 (D), a net N is stretched under a wind pipe D to prevent its hanging. Had been prevented. However, the installation of the net N is not only time-consuming and labor-intensive, but there is also a problem that the net N must be removed when the wind pipe D is replaced or removed.
【０００５】本発明は、上記従来の問題点を解決するた
めになされたもので、その目的とするところは、風管を
設置したり撤去する時に、同時に迅速且つ容易に取付け
たり撤去することができ、また、風管の垂れ下がりを最
小限にして、作業車等との接触事故を効果的に防止する
ことができる風管用垂れ防止ハンガーおよび垂れ防止ハ
ンガーを備えた風管を提供することにある。The present invention has been made in order to solve the above-mentioned conventional problems, and an object thereof is to simultaneously and promptly and easily attach or remove the wind pipe when installing or removing it. Another object of the present invention is to provide a wind pipe drip prevention hanger and a wind pipe provided with the drip prevention hanger that can prevent the accident of contact with a work vehicle or the like by minimizing the drip of the wind pipe. .
【０００６】[0006]
【課題を解決するための手段】本発明の風管用垂れ防止
ハンガーは、下方が開放した剛性材料により構成される
ハンガーであって、その頂部には、風管を吊設するメッ
センジャーワイヤに取り付ける手段を設け、その両側の
端部には、上記風管の両側部に付設した側ヒレに着脱自
在に連結する手段を設けたことを特徴とする。また、円
筒状に膨らんだ状態の風管の直径より僅かに大きな直径
を有する略円弧状に形成されることを特徴とする。さら
に、上記メッセンジャーワイヤへの取付け手段が、相互
に逆向きに取り付けられた一対のＪ字状掛留杆から成る
ことを特徴とする。また更に、上記風管の側ヒレに着脱
自在に連結する手段が、該側ヒレに開設した掛止孔に掛
け止められるフックから成ることを特徴とする。更にま
た、上記両側の端部が、風管の横断面のほぼ４時および
ほぼ８時の方向に位置することを特徴とする。また、上
記両側の端部が、弾性的に稍拡がっていることを特徴と
するものである。SUMMARY OF THE INVENTION A drip prevention hanger for a wind pipe according to the present invention is a hanger made of a rigid material having an open lower portion, and a means for attaching a wind pipe to a messenger wire for hanging the wind pipe on the top thereof. And a means for detachably connecting to side fins attached to both sides of the wind tube is provided at both ends thereof. Further, it is characterized in that it is formed in a substantially arc shape having a diameter slightly larger than the diameter of the wind tube in the state of being bulged in a cylindrical shape. Further, the attachment means to the messenger wire is characterized in that it comprises a pair of J-shaped hooking rods attached in mutually opposite directions. Still further, the means for detachably connecting to the side fin of the air duct is characterized by a hook that is hooked to a hook hole formed in the side fin. Furthermore, it is characterized in that the ends on both sides are located in the direction of approximately 4 o'clock and approximately 8 o'clock of the cross section of the wind pipe. Further, it is characterized in that the ends on both sides are elastically expanded.
【０００７】本発明の垂れ防止ハンガーを備えた風管
は、トンネルの天井に沿設されたメッセンジャーワイヤ
に吊設され、送排気中に円筒状に膨らむと共に、送排気
が停止されると垂れ下がる風管において、風管の両側に
側ヒレを設け、上記メッセンジャーワイヤに取り付けら
れた上記構成の風管用垂れ防止ハンガーの両側の端部に
より、上記側ヒレをそれぞれ保持せしめるように構成し
たことを特徴とする。また、上記側ヒレを、円筒状に膨
らんだ風管の横断面のほぼ４時およびほぼ８時の方向位
置に設けたことを特徴とするものである。The wind pipe provided with the drip prevention hanger of the present invention is hung on a messenger wire provided along the ceiling of a tunnel and swells in a cylindrical shape during air supply / exhaust, and hangs down when the air supply / exhaust is stopped. In the pipe, side fins are provided on both sides of the wind pipe, and the side fins are configured to be held by the end portions on both sides of the wind pipe sag prevention hanger of the above-mentioned configuration attached to the messenger wire. To do. Further, the side fins are provided at a directional position of about 4 o'clock and about 8 o'clock of a cross section of a wind tube which is bulged in a cylindrical shape.
【０００８】[0008]
【発明の実施の形態】以下、本発明の実施の形態につい
て、図面を参照しながら説明する。図１（Ａ）及び
（Ｂ）において、１は風管であって、その頂部には吊ヒ
レ１ａが長手方向に沿設されている。該吊ヒレ１ａに
は、適当な間隔をあけて鳩目など多数の吊り孔（図示せ
ず）が設けられている。該吊り孔に掛け止めたＳ字環な
どの掛止具２を介して、上記風管１がメッセンジャーワ
イヤ３に吊設される。該メッセンジャーワイヤ３はアイ
ボルトなどの固定具４によりトンネルＴの天井に張設さ
れている。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIGS. 1 (A) and 1 (B), 1 is a wind pipe, and a suspension fin 1a is provided along the longitudinal direction on the top thereof. The suspension fin 1a is provided with a large number of suspension holes (not shown) such as eyelets at appropriate intervals. The wind tube 1 is suspended from the messenger wire 3 via a retaining member 2 such as an S-shaped ring that is suspended in the suspension hole. The messenger wire 3 is stretched around the ceiling of the tunnel T by a fixture 4 such as an eyebolt.
【０００９】５は垂れ防止ハンガーであって、上記風管
１に空気が送り込まれて膨らんだ際の直径より僅かに大
きな直径の円弧状を成し、その下方は開放されている。
該垂れ防止ハンガー５は、上記風管１の重さにより撓ん
で変形する虞のない金属製パイプなどの剛性材料により
構成される。Reference numeral 5 is a drip prevention hanger, which has an arcuate shape having a diameter slightly larger than the diameter when the air is blown into the air duct 1 to expand it.
The drip prevention hanger 5 is made of a rigid material such as a metal pipe that is not likely to be bent and deformed due to the weight of the wind tube 1.
【００１０】上記垂れ防止ハンガー５の頂部には、図２
（Ａ）に示すように、一対のＪ字状掛留杆５ａ、５ｂが
付設されている。これらのＪ字状掛留杆５ａおよび５ｂ
は、垂れ防止ハンガー５を挟む状態で相互に逆向きに取
り付けられている。従って、上記垂れ防止ハンガー５を
上記メッセンジャーワイヤ３に取り付ける場合には、先
ず、図２（Ａ）に示すように、垂れ防止ハンガー５をメ
ッセンジャーワイヤ３に対してほぼ同じ向き（ほぼ平
行）にして矢印方向に降ろし、図２（Ｂ）に示すよう
に、両Ｊ字状掛留杆５ａ、５ｂの間にメッセンジャーワ
イヤ３を挟み込む。続いて、同図に旋回矢印で示すよう
に、垂れ防止ハンガー５をほぼ９０度回転せしめて、図
２（Ｃ）に示すように、垂れ防止ハンガー５とメッセン
ジャーワイヤ３を直交せしめる。この吊設状態（図２
（Ｄ）及び（Ｅ）も参照）で、垂れ防止ハンガー５はメ
ッセンジャーワイヤ３に対して、上下左右の動きが規制
され、風管１の揺れ等により容易に外れる虞はない。As shown in FIG.
As shown in (A), a pair of J-shaped hooking rods 5a and 5b are attached. These J-shaped hanging rods 5a and 5b
Are attached in mutually opposite directions with the sagging prevention hanger 5 sandwiched therebetween. Therefore, when attaching the sagging prevention hanger 5 to the messenger wire 3, first, as shown in FIG. 2 (A), the sagging prevention hanger 5 is placed in substantially the same direction (almost parallel) to the messenger wire 3. It is lowered in the direction of the arrow, and as shown in FIG. 2B, the messenger wire 3 is sandwiched between the J-shaped hooking rods 5a and 5b. Then, as shown by the turning arrow in the figure, the sagging prevention hanger 5 is rotated by approximately 90 degrees, and the sagging prevention hanger 5 and the messenger wire 3 are made orthogonal to each other as shown in FIG. 2 (C). This suspension state (Fig. 2
(See also (D) and (E)), the sagging prevention hanger 5 is restricted from moving vertically and horizontally with respect to the messenger wire 3, and there is no fear that it will come off easily due to shaking of the wind tube 1 or the like.
【００１１】図１および図３から明らかなように、上記
垂れ防止ハンガー５の両側の端部５ｃは扁平状に潰され
ていて、ここに止め孔５ｃ′が開設されている。該止め
孔５ｃ′にはフック６が取り付けられている。１ｂは、
風管１の両側に付設された側ヒレであって、鳩目などの
掛止孔１ｃが開設されている。該掛止孔１ｃには、上記
フック６が着脱自在に掛け止められる。図１（Ａ）から
明らかなように、左右の側ヒレ１ｂは、それぞれ時計の
短針の４時方向ｄ１と８時方向ｄ２の位置に配置されて
いる。この側ヒレ１ｂの４時−８時位置は、図４に示す
ように、送排気を停止して窄んだ状態の風管１の最下部
の垂れ下がり量ができるだけ少なくなる位置である。As is apparent from FIGS. 1 and 3, the end portions 5c on both sides of the sagging prevention hanger 5 are flatly crushed, and stop holes 5c 'are formed therein. A hook 6 is attached to the stop hole 5c '. 1b is
Side fins attached to both sides of the wind pipe 1, and hook holes 1c for eyelets and the like are formed. The hook 6 is detachably hooked in the hook hole 1c. As is clear from FIG. 1A, the left and right side fins 1b are arranged at the positions of the short hand of the clock in the 4 o'clock direction d1 and the 8 o'clock direction d2, respectively. The 4 o'clock-8 o'clock position of the side fin 1b is a position where the amount of sagging of the lowermost portion of the wind tube 1 in a closed state by stopping the air supply and exhaustion is as small as possible, as shown in FIG.
【００１２】本発明の対象とする風管は、トンネルの天
井に沿設されたメッセンジャーワイヤに吊設され、送排
気中に円筒状に膨らむと共に、送排気が停止されると垂
れ下がる種類の風管であれば、その材質、構成や大きさ
等はいずれでもよい。また、これらの風管の両側に付設
する横ヒレの取付位置は、上記４時−８時の位置に限定
するものではなく、３時−９時の位置から５時−７時の
位置の間のいずれの位置でもよい。The air duct to which the present invention is applied is hung on a messenger wire provided along the ceiling of a tunnel and swells in a cylindrical shape during air supply / exhaust, and hangs down when air supply / exhaust is stopped. Any material, structure, size, etc. may be used. Moreover, the mounting positions of the lateral fins attached to both sides of these air ducts are not limited to the above-mentioned positions of 4 o'clock-8 o'clock, but between the positions of 3 o'clock-9 o'clock and 5 o'clock-7 o'clock. Any position of
【００１３】図５に示すように、上記垂れ防止ハンガー
５は、その両側の端部５ｃが風管１の側ヒレ１ｂに接続
されていないフリーの状態において、破線で示すよう
に、弾性的に稍拡がった状態に構成してもよい。この場
合には、風管１の垂れ下がり量を更に防止することがで
きる。また、上記垂れ防止ハンガー５は、上記円弧状に
限定するものではなく、例えば、図６に示すように、そ
の中央頂部が上記メッセンジャーワイヤ３に吊設された
状態で、両側の端部５ｃが風管１の側ヒレ１ｂの近くに
位置する形状であれば、いずれでもよい。As shown in FIG. 5, the sagging prevention hanger 5 is elastically elastic as shown by a broken line in a free state in which both end portions 5c are not connected to the side fins 1b of the wind tube 1. It may be configured in a slightly expanded state. In this case, the hanging amount of the wind tube 1 can be further prevented. Further, the sagging prevention hanger 5 is not limited to the arc shape, and for example, as shown in FIG. 6, when the central top portion is suspended from the messenger wire 3, the end portions 5c on both sides are Any shape may be used as long as it is located near the side fin 1b of the wind tube 1.
【００１４】さらに、上記垂れ防止ハンガー５の頂部
は、相互に逆向きに取り付けられた一対のＪ字状掛留杆
５ａ、５ｂによりメッセンジャーワイヤ３に取り付けら
れているが、本発明の取り付け手段は、これに限定する
ものではなく、風管１の揺れなどにより動揺することな
く安定して取り付けられる構造であれば、いずれでもよ
い。なお、上記実施例のように、垂れ防止ハンガー５の
頂部をメッセンジャーワイヤ３の上側に位置させるほう
が、取付構造が簡単で、トンネルＴの天井に近づけて安
定かつコンパクトに納めることができて、好ましい。Further, the top portion of the hanging prevention hanger 5 is attached to the messenger wire 3 by a pair of J-shaped hooking rods 5a and 5b which are attached in opposite directions to each other. However, the structure is not limited to this, and any structure may be used as long as the structure can be stably attached without shaking due to the shaking of the wind tube 1. In addition, it is preferable that the top portion of the sagging prevention hanger 5 is located above the messenger wire 3 as in the above-described embodiment, because the mounting structure is simpler and it can be brought closer to the ceiling of the tunnel T and can be stored stably and compactly. .
【００１５】[0015]
【発明の効果】本発明の風管用垂れ防止ハンガーおよび
垂れ防止ハンガーを備えた風管によれば、風管を設置し
たり撤去する時に、同時に迅速且つ容易に取付けたり撤
去することができ、また、風管の垂れ下がりを最小限に
して、作業車等との接触事故を効果的に防止することが
できる。EFFECTS OF THE INVENTION According to the drip prevention hanger for a wind pipe and the wind pipe provided with the drip prevention hanger of the present invention, when installing or removing the wind pipe, it is possible to quickly and easily attach or remove the wind pipe. It is possible to effectively prevent the accident of contact with the work vehicle or the like by minimizing the hanging of the wind pipe.
【図１】本発明の風管用垂れ防止ハンガーおよび垂れ防
止ハンガーを備えた風管の一実施例を示す説明図であ
る。FIG. 1 is an explanatory view showing an embodiment of a wind pipe sag prevention hanger and a wind pipe provided with a sag prevention hanger of the present invention.
【図２】風管用垂れ防止ハンガーをメッセンジャーワイ
ヤに取り付ける手段の一実施例を示す構成および取り付
け説明図である。FIG. 2 is a configuration and attachment explanatory view showing an embodiment of a means for attaching a drip prevention hanger for a wind pipe to a messenger wire.
【図３】風管用垂れ防止ハンガーの両側の端部を風管の
側ヒレに取り付ける手段の一実施例を示す説明図であ
る。FIG. 3 is an explanatory view showing an embodiment of a means for attaching both end portions of the drip prevention hanger for a wind pipe to side fins of the wind pipe.
【図４】送排気を停止した状態の風管およびその垂れを
防止する風管用垂れ防止ハンガーの説明図である。FIG. 4 is an explanatory diagram of a wind pipe in a state where air supply and exhaust are stopped and a wind pipe hanging prevention hanger that prevents the wind pipe from hanging.
【図５】風管用垂れ防止ハンガーの別の実施例を示す説
明図である。FIG. 5 is an explanatory view showing another embodiment of the drip prevention hanger for a wind pipe.
【図６】風管用垂れ防止ハンガーの更に別の実施例を示
す説明図である。FIG. 6 is an explanatory view showing still another embodiment of the drip prevention hanger for a wind pipe.
【図７】従来の風管およびその問題点を説明する図であ
る。FIG. 7 is a diagram illustrating a conventional air duct and its problems.
【符号の説明】 １ 風管 １ａ 吊ヒレ １ｂ 側ヒレ １ｃ 掛止孔 ２ 掛止具 ３ メッセンジャーワイヤ ４ 固定具 ５ 垂れ防止ハンガー ５ａ、５ｂ Ｊ字状掛留杆 ５ｃ 端部 ５ｃ′止め孔 ６ フック Ｂ 送排気装置 Ｄ 風管 Ｍ 作業車 Ｎ ネット Ｔ トンネル[Explanation of symbols] 1 wind tube 1a hanging fin 1b fin 1c Hook hole 2 hook 3 messenger wire 4 fixtures 5 Dripping prevention hanger 5a, 5b J-shaped hanging rod 5c end 5c 'stop hole 6 hooks B air supply / exhaust device D wind tube M work vehicle N net T tunnel
───────────────────────────────────────────────────── フロントページの続き (72)発明者 遠藤 信之 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 (72)発明者 鮫島 寛 東京都新宿区西新宿一丁目25番１号 大成 建設株式会社内 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Nobuyuki Endo 1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd. (72) Inventor Hiroshi Samejima 1-25-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Taisei Construction Co., Ltd.
Claims (8)
るハンガーであって、その頂部には、風管を吊設するメ
ッセンジャーワイヤに取り付ける手段を設け、その両側
の端部には、上記風管の両側部に付設した側ヒレに着脱
自在に連結する手段を設けたことを特徴とする風管用垂
れ防止ハンガー。1. A hanger composed of a rigid material having an open lower part, the top part of which is provided with means for attaching to a messenger wire for suspending a wind tube, and the wind tube is provided at both ends thereof. A hanger for wind pipes, characterized in that means for detachably connecting to side fins attached to both sides of the hanger are provided.
僅かに大きな直径を有する略円弧状に形成されることを
特徴とする請求項１に記載の風管用垂れ防止ハンガー。2. The drip prevention hanger for a wind pipe according to claim 1, wherein the wind pipe is formed in a substantially arcuate shape having a diameter slightly larger than the diameter of the wind pipe in a state of being bulged in a cylindrical shape.
段が、相互に逆向きに取り付けられた一対のＪ字状掛留
杆から成ることを特徴とする請求項１または２に記載の
風管用垂れ防止ハンガー。3. The hanger for a wind pipe according to claim 1, wherein the means for attaching to the messenger wire comprises a pair of J-shaped hanging rods attached in mutually opposite directions. .
手段が、該側ヒレに開設した掛止孔に掛け止められるフ
ックから成ることを特徴とする請求項１、２または３に
記載の風管用垂れ防止ハンガー。4. The device according to claim 1, 2 or 3, wherein the means for detachably connecting to the side fin of the wind pipe comprises a hook that is hooked to a hook hole formed in the side fin. Hanger for wind pipes.
４時およびほぼ８時の方向に位置することを特徴とする
請求項１、２、３または４に記載の風管用垂れ防止ハン
ガー。5. The windpipe sag according to claim 1, 2, 3 or 4, wherein the ends on both sides are located in a direction of approximately 4 o'clock and approximately 8 o'clock of a cross section of the wind duct. Prevention hanger.
いることを特徴とする請求項１、２、３、４または５に
記載の風管用垂れ防止ハンガー。6. The wind pipe sag prevention hanger according to claim 1, 2, 3, 4, or 5, wherein the ends on both sides are elastically expanded.
ャーワイヤに吊設され、送排気中に円筒状に膨らむと共
に、送排気が停止されると垂れ下がる風管において、風
管の両側に側ヒレを設け、上記メッセンジャーワイヤに
取り付けられた請求項１、２、３、４、５または６に記
載の風管用垂れ防止ハンガーの両側の端部により、上記
側ヒレをそれぞれ保持せしめるように構成したことを特
徴とする垂れ防止ハンガーを備えた風管。7. A wind pipe suspended from a messenger wire installed along a ceiling of a tunnel, which swells in a cylindrical shape during air supply / exhaust, and which hangs down when air supply / exhaust is stopped, has side fins on both sides of the air pipe. The side fins are provided respectively by the end portions on both sides of the wind pipe sag prevention hanger according to claim 1, 2, 3, 4, 5, or 6 provided and attached to the messenger wire. A wind tube with a characteristic drip prevention hanger.
横断面のほぼ４時およびほぼ８時の方向位置に設けたこ
とを特徴とする請求項６に記載の垂れ防止ハンガーを備
えた風管。8. The sagging preventive hanger according to claim 6, wherein the side fins are provided at a position of about 4 o'clock and about 8 o'clock of a cross section of the air tube which is bulged in a cylindrical shape. Wind duct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002132806A JP4127766B2 (en) | 2002-05-08 | 2002-05-08 | Wind pipe sag hanger and wind pipe with sag hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002132806A JP4127766B2 (en) | 2002-05-08 | 2002-05-08 | Wind pipe sag hanger and wind pipe with sag hanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003328700A true JP2003328700A (en) | 2003-11-19 |
| JP4127766B2 JP4127766B2 (en) | 2008-07-30 |
Family
ID=29696172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002132806A Expired - Fee Related JP4127766B2 (en) | 2002-05-08 | 2002-05-08 | Wind pipe sag hanger and wind pipe with sag hanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4127766B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009180412A (en) * | 2008-01-30 | 2009-08-13 | Kumagai Gumi Co Ltd | Blower facility, gas leakage prevention material used for it, and gas leakage prevention method |
| JP2015151846A (en) * | 2014-02-19 | 2015-08-24 | 株式会社流機エンジニアリング | flexible duct device |
| NO337239B1 (en) * | 2013-12-06 | 2016-02-22 | Storroesaeter Rune | System and method for extracting smoke from road tunnels |
-
2002
- 2002-05-08 JP JP2002132806A patent/JP4127766B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009180412A (en) * | 2008-01-30 | 2009-08-13 | Kumagai Gumi Co Ltd | Blower facility, gas leakage prevention material used for it, and gas leakage prevention method |
| NO337239B1 (en) * | 2013-12-06 | 2016-02-22 | Storroesaeter Rune | System and method for extracting smoke from road tunnels |
| JP2015151846A (en) * | 2014-02-19 | 2015-08-24 | 株式会社流機エンジニアリング | flexible duct device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4127766B2 (en) | 2008-07-30 |
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