JPH08280837A - Sprinkler unwinding piping - Google Patents
Sprinkler unwinding pipingInfo
- Publication number
- JPH08280837A JPH08280837A JP7083783A JP8378395A JPH08280837A JP H08280837 A JPH08280837 A JP H08280837A JP 7083783 A JP7083783 A JP 7083783A JP 8378395 A JP8378395 A JP 8378395A JP H08280837 A JPH08280837 A JP H08280837A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- metal
- bellows
- joint
- metal flexible
- 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
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Joints Allowing Movement (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建築物等の天井裏に備
えられる消火スプリンクラー用の巻き出し配管に関する
ものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an unwinding pipe for a fire extinguishing sprinkler provided on the ceiling of a building or the like.
【０００２】[0002]
【従来の技術】従来、特開昭５７−８６６６８号公報で
開示されたスプリンクラー巻き出し配管がある。ホテル
や商業ビル等の建築物では、天井にスプリンクラーヘッ
ドを設置することが義務付けられている。このスプリン
クラー配管には高圧の水が噴出するので、一般に高圧の
本管から分岐した主管を天井裏に配置し、主管から適宜
枝管を取り出し、この給水用枝管からスプリンクラーヘ
ッドまでの間をスプリンクラー巻き出し配管で配管して
導いていた。ここで可撓管としてはステンレス蛇腹管が
知られている。このような巻き出し配管において給水用
枝管とスプリンクラーヘッドまでの取付け位置や長さは
個々の配管場所によって異なり、１ｍ以下の短い個所や
２ｍ以上の長い個所があり、配管場所に応じた長さの可
撓管を用いている。またステンレス蛇腹管は高圧水を加
えると蛇腹部が延びてしまうので、ステンレス蛇腹管の
外面にステンレスブレード等を装着してブレードの両端
を金具で固定したブレード付のステンレス蛇腹管があ
る。2. Description of the Related Art Conventionally, there is a sprinkler unwinding pipe disclosed in JP-A-57-86668. In buildings such as hotels and commercial buildings, it is mandatory to install a sprinkler head on the ceiling. Since high-pressure water jets out into this sprinkler pipe, a main pipe branched from the high-pressure main pipe is generally placed behind the ceiling, a branch pipe is taken out from the main pipe as appropriate, and the sprinkler head is connected to the sprinkler head. It was guided by piping with unrolling piping. Here, a stainless steel bellows tube is known as a flexible tube. In such unwinding piping, the installation position and length from the water supply branch pipe to the sprinkler head differ depending on the individual piping location, and there are short locations of 1 m or less and long locations of 2 m or more. The flexible tube is used. Further, since the bellows portion of the stainless steel bellows tube expands when high-pressure water is applied, there is a stainless bellows tube with a blade in which a stainless steel blade or the like is attached to the outer surface of the stainless bellows tube and both ends of the braid tube are fixed with metal fittings.
【０００３】[0003]
【発明が解決しようとする課題】しかしステンレスブレ
ードでは蛇腹管が内圧によってダメージを受けるのを補
強するだけの強度が不足している。また無理な曲げや衝
撃に対して強くないし外傷部分が応力腐食割れ等の原因
となる。そして高価であるという問題がある。また、ブ
レードは単に外装するだけでは位置がずれるから、例え
ば実公昭60-1343号にあるように溝付リングと固定金具
の間にブレード材を挟んでこれを継手の溝の中に圧入す
る取付構造がある。しかし、この構造では部品点数が多
いし取付作業が面倒であった。従って、本発明はこのよ
うなスプリンクラー巻き出し配管に用いるステンレス蛇
腹管を補強する手段と、これと継手との固定構造として
簡単かつ確実なものを提供することを目的とする。However, the stainless blade is insufficient in strength to reinforce the bellows tube from being damaged by the internal pressure. Also, it is not strong against excessive bending and impact, and the scratched portion causes stress corrosion cracking and the like. And there is the problem of being expensive. Also, since the position of the blade will shift if it is simply sheathed, for example, as in Japanese Utility Model Publication No. 60-1343, insert the blade material between the grooved ring and the fixing metal fitting and press it into the groove of the fitting. There is a structure. However, this structure has a large number of parts and the mounting work is troublesome. Therefore, an object of the present invention is to provide a means for reinforcing a stainless steel bellows pipe used for such a sprinkler unwinding pipe, and a simple and reliable fixing structure for the stainless bellows pipe and the joint.
【０００４】[0004]
【課題を解決するための手段】本発明は、枝管とスプリ
ンクラーヘッドとの間を継手と可撓管により接続するス
プリンクラー巻き出し配管において、前記可撓管が内側
のステンレス製蛇腹管とこの蛇腹管に外装した金属製可
撓管とからなり、かつ前記ステンレス製蛇腹管と金属製
可撓管との隙間を片側で０．２〜２．０ｍｍとしたスプ
リンクラー巻き出し配管である。また前記金属製可撓管
の端部外面に継手の内径より外側に突出した突起部を有
した止め金具を装着し、前記継手の端部内周に凹溝を形
成し、前記金属製可撓管と止め金具を共に継手内に押し
込み、前記凹溝内に前記突起部を係止して継手内部に金
属製可撓管を取り付けたスプリンクラー巻き出し配管で
ある。According to the present invention, in a sprinkler unwinding pipe for connecting a branch pipe and a sprinkler head with a joint and a flexible pipe, the flexible pipe is a stainless steel bellows pipe inside and the bellows. It is a sprinkler unwinding pipe which is composed of a metal flexible tube which is sheathed in a tube and has a gap between the stainless bellows tube and the metal flexible tube of 0.2 to 2.0 mm on one side. Further, a stopper having a projection protruding outside the inner diameter of the joint is attached to the outer surface of the end of the metal flexible tube, and a concave groove is formed on the inner circumference of the end of the joint to form the metal flexible tube. Is a sprinkler unwinding pipe in which a metal flexible tube is attached to the inside of the joint by pushing both the stopper and the stopper into the joint, locking the protrusion in the groove.
【０００５】前記可撓管の内、ステンレス蛇腹管は、ス
テンレスチューブの内径側に蛇腹状の波付けをしたもの
を用い、その両端はフレア加工し、継手側の面とフレア
シール接続で気密に接続するようにすると良い。他方蛇
腹管の外周に装着する金属製可撓管は、例えばＪＩＳＣ
８３０９で規定された金属製可撓電線管あるいはこれと
類似の規格外品を用いることが出来る。この金属製可撓
管は大きな蛇腹状の波形片を組み合わせた構造であるか
ら軸線方向にもまた径方向にも若干延びることが出来
る。また、蛇腹管の外径に対して金属製可撓管の内径は
大きい程装着がしやすいが、本発明の場合ほぼ０．２か
ら２．０ｍｍ（片側の間隙）程度のものが好ましい。更
に好ましくは０．２〜０．６ｍｍがよい。Among the flexible tubes, the stainless steel bellows tube is made of a stainless steel tube whose inner diameter side is corrugated, and both ends thereof are flared and airtightly connected to the joint side surface by flare seal connection. It is good to connect. On the other hand, the flexible metal tube attached to the outer circumference of the bellows tube is, for example, JISC.
A flexible metal conduit tube defined by 8309 or a similar nonstandard product can be used. Since this flexible metal tube has a structure in which large corrugated corrugated pieces are combined, it can extend slightly in the axial direction and in the radial direction. Further, the larger the inner diameter of the metal flexible tube with respect to the outer diameter of the bellows tube, the easier the mounting, but in the case of the present invention, it is preferably about 0.2 to 2.0 mm (gap on one side). More preferably, it is 0.2 to 0.6 mm.
【０００６】[0006]
【作用】蛇腹管の外周に装着した金属製可撓管は外部に
対するよろい管の働きをなし、ステンレス蛇腹管が内圧
によって変形するのを防止する。両者の隙間が０．２〜
２．０ｍｍであればそれぞれの巻き出し配管の状況に応
じて曲がり部を形成するとき、蛇腹管の外周面が金属可
撓管の内周面で拘束されて曲げられ、かつ金属可撓管に
与えられている最小曲げ半径以下の極端な曲げは行われ
ないから蛇腹管の無理な曲げや捩れが起こらない。更に
配管が行われた後で、他の建設工事中の溶接スパッタが
飛んできてこの巻き出し配管に付着した場合でも、外側
の金属可撓管が内側の蛇腹管を遮断しているので蛇腹管
に影響を与えず、配管工事中の他の物体とのこすれによ
る外傷や釘打ち等の外的要因による損傷の問題も生じな
い。よって、応力腐食割れなどの発生要因がなくなる。The metal flexible tube mounted on the outer circumference of the bellows tube acts as a vibrating tube to the outside, and prevents the stainless bellows tube from being deformed by the internal pressure. The gap between the two is 0.2 ~
If it is 2.0 mm, when forming a bent portion according to the situation of each unwinding pipe, the outer peripheral surface of the bellows tube is constrained by the inner peripheral surface of the metal flexible tube to be bent, and No excessive bending below the given minimum bending radius is performed, so that the bellows tube is not excessively bent or twisted. Even if welding spatter is blown off during other construction work and adheres to the unwound pipe after the pipe is further piped, the metal flexible pipe on the outer side shuts off the bellows pipe on the inner side. And the problem of damage due to external factors such as rubbing against other objects during plumbing or nailing will not occur. Therefore, the cause of stress corrosion cracking is eliminated.
【０００７】金属可撓管の両端部は止め金具で覆って継
手内に押し込みそのまま係止させるから施工がごく簡単
である。その上で止め金具をカシメて固定すれば、ある
いは予め金属可撓管の凹溝に合わせて止め金具をカシメ
るように止めておくとこの凹溝はねじ様になっているか
ら止め金具が螺合して締め付けられるから金属可撓管が
ずれることがなく安心である。これらによって怪我の恐
れもないし、上記した間隙を絶えず一定に保つことがで
きる。また、ステンレス蛇腹管は内径側に波付けしたも
のであるから加工が容易であるし、直管部分の加工硬化
がなく焼鈍などの余分な手間が掛からない。Since both ends of the metal flexible tube are covered with stoppers and pushed into the joint and locked as they are, the construction is very simple. Then, if the stopper is caulked and fixed, or if the stopper is clamped in advance so that it fits into the groove of the metal flexible tube, this groove is like a screw, so the stopper is screwed. Since it is tightened together, it is safe because the metal flexible tube does not move. With these, there is no fear of injury, and the above-mentioned gap can be constantly kept constant. Further, since the stainless steel bellows pipe is corrugated on the inner diameter side, it is easy to process, and there is no work hardening of the straight pipe portion, and no extra work such as annealing is required.
【０００８】[0008]
【実施例】以下本発明の実施例について図面を参照して
説明する。図１は本発明の一実施例を示すスプリンクラ
ー巻き出し配管であって金属可撓管を取り付ける前の半
断面図である。図２は金属可撓管を取り付けた継手部分
の半断面図である。図３はこれらの接続構造を用いて配
管したスプリンクラー巻き出し配管の一例を示す斜視図
である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a half cross-sectional view showing a sprinkler unwinding pipe according to an embodiment of the present invention before a metal flexible pipe is attached. FIG. 2 is a half cross-sectional view of a joint portion to which a flexible metal tube is attached. FIG. 3 is a perspective view showing an example of a sprinkler unwinding pipe piped using these connection structures.
【０００９】図において、１はステンレス蛇腹管、３は
金属製可撓管、１０は止め金具、２１は継手２の一方の
部品である袋ナット、３１は継手本体である。本例で
は、ステンレス蛇腹管１と金属製可撓管３の寸法はその
隙間が片側で０．３ｍｍ程度になるものを用いている。
止め金具１０は金属製の円環部材であるが、その先端は
袋ナット２１の内径より外側に突出した突起部１１を備
えている。突起部１１は円環状に形成しても良いが円周
のうち２〜８箇所程度不連続に突出したものであっても
良い。また、先端がカールしていた方が押し込み易いの
で都合がよい。一方、袋ナット２１の端部には凹溝２２
を形成し、ここに上記した突起部１１を押し込んでその
跳ね返り部分が溝壁に係止するようにしている。蛇腹管
１の端部には直管部分１３があり先端はフレア加工した
フレア部１５を形成している。このフレア部は継手本体
３１側のフレアシール面との間で挟着して密封的に接続
する。１２はカシメ部で止め金具１０を全周にわたって
あるいは数ヶ所だけ押圧して金属可撓管３と止め金具１
０を締結することができる。また予めねじ状に斜めに延
びるカシメ部分を対向して突設すると、金属可撓管３の
外面はスパイラル状の溝が構成されているのでこのスパ
イラル溝とカシメ部分がねじの様に螺合して、これで前
進、後退させて締め付けて止め金具１０と金属可撓管３
を固定することができる。In the figure, 1 is a stainless bellows tube, 3 is a flexible metal tube, 10 is a stopper, 21 is a cap nut which is one part of the joint 2, and 31 is a joint body. In this example, the dimensions of the stainless steel bellows tube 1 and the flexible metal tube 3 are such that the gap between them is about 0.3 mm on one side.
The stopper 10 is a metallic annular member, and the tip of the stopper 10 is provided with a protrusion 11 protruding outward from the inner diameter of the cap nut 21. The protrusion 11 may be formed in an annular shape, but may be one that discontinuously protrudes from about 2 to 8 points on the circumference. Further, it is convenient that the tip is curled because it is easier to push. On the other hand, a groove 22 is formed at the end of the cap nut 21.
Is formed, and the above-mentioned projection 11 is pushed in here so that the rebounded portion is locked to the groove wall. A straight pipe portion 13 is provided at the end of the bellows pipe 1, and a flare portion 15 that is flared is formed at the tip thereof. The flare portion is sandwiched between the flare seal surface on the joint body 31 side and sealingly connected. Reference numeral 12 is a caulking portion, which presses the stopper 10 over the entire circumference or at only a few places so that the metal flexible tube 3 and the stopper 1
0 can be concluded. Further, when caulking portions obliquely extending in a screw shape are provided so as to face each other in advance, a spiral groove is formed on the outer surface of the metal flexible tube 3. Therefore, the spiral groove and the caulking portion are screwed like screws. Then, forward and backward with this, tighten and tighten the stopper 10 and the metal flexible tube 3
Can be fixed.
【００１０】次に接続手順を説明すると、先ず蛇腹管１
に金属可撓管３を挿通し、さらに可撓管３の端部に止め
金具１０を図の向きに装着する。その後フレア加工を施
し継手本体３１に対し袋ナット２１をねじ込み接続す
る。そして、金属可撓管３と止め金具１０を共に袋ナッ
トの端部から凹溝側に押し込んで突起部１１を凹溝内に
係止させる。この状態で止め金具１０の外面の一部を内
径側に押し込みカシメ１２をして金属可撓管３の位置を
蛇腹管１と継手に対して固定する。尚、継手本体と袋ナ
ットのねじ込みはこの後に行なっても良い。また、カシ
メ１２で固定することなく、上記のように止め金具をね
じ込んで固定するようにしても良い。Next, the connection procedure will be described. First, the bellows tube 1
The metal flexible tube 3 is inserted through, and the stopper 10 is attached to the end of the flexible tube 3 in the direction shown in the drawing. After that, flare processing is performed, and the cap nut 21 is screwed into and connected to the joint body 31. Then, the metal flexible tube 3 and the stopper 10 are both pushed into the groove from the end of the cap nut to lock the projection 11 in the groove. In this state, a part of the outer surface of the stopper 10 is pushed toward the inner diameter side and the caulking 12 is performed to fix the position of the metal flexible tube 3 to the bellows tube 1 and the joint. The joint body and the cap nut may be screwed in after this. Further, instead of fixing with the caulking 12, the fastener may be screwed and fixed as described above.
【００１１】蛇腹管１について、外径側に波付けしたも
の即ち直管部径より外径側に波付け部を形成するにはス
テンレスチューブを蛇腹状に波付けした後、両端の直管
部は波山を引き延ばして形成するからこの部分は加工硬
化を起こす。従って、その後焼鈍処理を施す必要があ
る。この点内径側に波付けしているのでもともとのステ
ンレスチューブの直管がそのまま残ることとなり加工も
し易く焼鈍などの手間が掛からない。よって安価に製造
できる。To form a corrugated portion of the bellows pipe 1 on the outer diameter side, that is, to form a corrugated portion on the outer diameter side of the straight pipe portion diameter, after corrugating the stainless steel tube in a bellows shape, the straight pipe portions at both ends are formed. Is formed by extending the wave crests, so this portion causes work hardening. Therefore, it is necessary to perform the annealing treatment thereafter. Since the straight pipe of the original stainless steel tube is left as it is by corrugating it on the inner diameter side, it is easy to process and does not require annealing and the like. Therefore, it can be manufactured at low cost.
【００１２】外側の金属可撓管３は、ここではＪＩＳＣ
８３０９で規定された金属製可撓電線管と同類品を用い
ている。この金属可撓管は容易に手に入るし安価であ
る。その外周面は自由状態では滑らかな一様の面である
が、伸ばすとスパイラル状の条溝が現われるようになっ
ており、全般に取扱性において優れている。このものは
比較的大きな最小曲げ半径を有し剛性があり偏平せずに
簡単容易に自由に手で曲げることが出来るので蛇腹管の
曲げ性を損なわずに、内挿した蛇腹管の外的要因による
損傷を防止することもできる。そして、巻き出し配管の
途中で必要に応じて曲がり部を形成する際にも、蛇腹管
１の外周はほぼ拘束された状態で曲げが行われるので蛇
腹管が強度的に弱いものであっても折損や捩れがなく耐
久性がある。また金属可撓管３の両端は止め金具１０に
よって覆われ袋ナット内に隠れるから切り口などの鋭利
な部分露出せず安全である。The outer metal flexible tube 3 is a JISC here.
The same product as the flexible metal conduit tube defined by 8309 is used. This flexible metal tube is easily available and inexpensive. The outer peripheral surface is a smooth and uniform surface in a free state, but when extended, a spiral groove is formed, which is excellent in handleability in general. This one has a relatively large minimum bending radius, is rigid, and can be easily and freely bent without flattening, so the external factors of the inserted bellows tube can be maintained without impairing the bendability of the bellows tube. It is also possible to prevent damage due to. Even when a bent portion is formed in the unwinding pipe as needed, the bellows pipe 1 is bent with its outer periphery being substantially restrained, so that even if the bellows pipe is weak in strength. Durable without breaking or twisting. Further, since both ends of the metal flexible tube 3 are covered with the stoppers 10 and hidden in the cap nut, it is safe that no sharp portion such as a cut end is exposed.
【００１３】次に図３は、実際スプリンクラー巻き出し
配管を施工した例を示す斜視図である。 給水主管から
適宜分岐した枝管６にチーズ５を接続し、このチーズ５
に接続口が５つ（周囲に４つと下端に１つ）備わった分
岐継手４を接続し、この接続口のめねじに上記した継手
２の本体３１側のおねじをねじ込んで接続する。一方ス
プリンクラーヘッド取付け管７にスプリンクラーヘッド
９と蛇腹管１を接続する。この時、金属可撓管３を上述
した止め金具１０によって継手２に固定している。そし
て、分岐継手４側を接続し、障害物を避けるようにして
金属可撓管３とともに蛇腹管１を適宜曲げて導き、最終
的に取付管７を固定金具８を用いて固定材８０に固定し
ている。他の接続口も上記と同様に巻き出し配管がされ
るが、それぞれ他の配管や梁などを避けるために曲がり
部が少なくとも１箇所は設けられている。Next, FIG. 3 is a perspective view showing an example in which a sprinkler unwinding pipe is actually installed. The cheese 5 is connected to a branch pipe 6 which is appropriately branched from the main water supply pipe.
Is connected to the branch joint 4 having five connection ports (four on the periphery and one on the lower end), and the female thread of the connection port is screwed into the male thread on the main body 31 side of the joint 2 for connection. On the other hand, the sprinkler head 9 and the bellows tube 1 are connected to the sprinkler head mounting tube 7. At this time, the metal flexible tube 3 is fixed to the joint 2 by the above-mentioned fastener 10. Then, the branch joint 4 side is connected, the bellows tube 1 is appropriately bent and guided together with the metal flexible tube 3 so as to avoid an obstacle, and finally the mounting tube 7 is fixed to the fixing member 80 using the fixing metal fitting 8. are doing. The other connection ports are also unwound pipes in the same manner as above, but at least one bent portion is provided to avoid other pipes and beams.
【００１４】[0014]
【発明の効果】本発明によれば、内圧に対する強度が充
分で外的衝撃等にも強いスプリンクラー巻き出し配管と
なった。また金属可撓管の位置がずれることなく継手に
簡単に装着固定することが出来る。According to the present invention, the sprinkler unwinding pipe has sufficient strength against internal pressure and is strong against external impact. Further, the metal flexible tube can be easily attached and fixed to the joint without shifting the position.
【図１】 本発明の一実施例を示す巻き出し配管の半断
面図である。FIG. 1 is a half sectional view of an unwinding pipe showing an embodiment of the present invention.
【図２】 本発明の一実施例を示す継手部分の半断面図
である。FIG. 2 is a half sectional view of a joint portion showing an embodiment of the present invention.
【図３】 本発明による巻き出し配管の施工状態を示す
斜視図である。FIG. 3 is a perspective view showing a construction state of the unwinding pipe according to the present invention.
１：蛇腹管 ２：継手 ３：金属
可撓管 ４：分岐継手 ５：チーズ ６：枝管 ７：取付管 ８：固定金具
９：スプリンクラーヘッド １０：止め金具 １１：突起部 １２：カシ
メ部 １３：直管部 １５：フレア部 ２１：袋ナ
ット ２２：凹溝 ３１：継手本体1: Bellows tube 2: Joint 3: Metal flexible tube 4: Branch joint 5: Cheese 6: Branch tube 7: Mounting tube 8: Fixing metal fitting
9: Sprinkler head 10: Stopper 11: Protrusion 12: Crimping 13: Straight pipe 15: Flare 21: Cap nut 22: Groove 31: Joint body
───────────────────────────────────────────────────── フロントページの続き (72)発明者 森田 和明 三重県桑名市大福２番地日立金属株式会社 桑名工場内 (72)発明者 恩田 和昌 三重県桑名市大福２番地日立金属株式会社 桑名工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuaki Morita 2 Daifuku, Hitachi Metals Co., Ltd., Kuwana City, Mie Prefecture, Kuwana Plant (72) Inventor Kazuma Onda 2 Daifuku, Kuwana City, Mie Hitachi Metals, Ltd. Kuwana Plant Within
Claims (4)
手と可撓管により接続するスプリンクラー巻き出し配管
において、前記可撓管が内側のステンレス製蛇腹管とこ
の蛇腹管に外装した金属製可撓管とからなり、かつ前記
ステンレス製蛇腹管と金属製可撓管との隙間が片側で
０．２〜２．０ｍｍとしたことを特徴とするスプリンク
ラー巻き出し配管。1. A sprinkler unwinding pipe connecting a branch pipe and a sprinkler head with a joint and a flexible pipe, wherein the flexible pipe is a stainless steel bellows pipe on the inside and a metal flexible pipe that is externally mounted on the bellows pipe. A sprinkler unwinding pipe comprising a pipe and a gap between the stainless steel bellows pipe and the metal flexible pipe being 0.2 to 2.0 mm on one side.
部内径より外側に突出した突起部を有した止め金具を装
着し、前記継手の端部内周に凹溝を形成し、前記金属製
可撓管と止め金具を共に継手内に押し込み、前記凹溝内
に前記突起部を係止して継手内部に金属製可撓管を取り
付けたことを特徴とする請求項１記載のスプリンクラー
巻き出し配管。2. A metal fitting having a protrusion having a protrusion projecting outward from the inner diameter of the end of the joint is mounted on the outer surface of the end of the metal flexible tube, and a groove is formed on the inner circumference of the end of the joint. The metal flexible tube is attached to the inside of the joint by pushing both the metal flexible tube and the stopper into the joint and locking the protrusion in the groove. Sprinkler unwinding piping.
部内径より若干小径の止め金具を装着し、前記金属製可
撓管と止め金具を共に継手内に押し込んだ後、前記蛇腹
管を内側から拡径して継手内部に金属製可撓管を取り付
けたことを特徴とする請求項１記載のスプリンクラー巻
き出し配管。3. A metal fitting which is slightly smaller than the inner diameter of the end of the joint is attached to the outer surface of the end of the metal flexible tube, and the metal flexible tube and the metal fitting are both pushed into the joint, and then, The sprinkler unwinding pipe according to claim 1, wherein the bellows pipe is expanded in diameter from the inside and a metal flexible pipe is attached inside the joint.
局部的に押圧かしめて金属製可撓管と止め金具が動かな
いように固定したことを特徴とする請求項２又は３記載
のスプリンクラー巻き出し配管。4. The metal flexible tube and the metal fastener are fixed so as not to move by locally pressing the outer surface of the metal fastener to the metal flexible tube side. Sprinkler unwinding piping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7083783A JPH08280837A (en) | 1995-04-10 | 1995-04-10 | Sprinkler unwinding piping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7083783A JPH08280837A (en) | 1995-04-10 | 1995-04-10 | Sprinkler unwinding piping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08280837A true JPH08280837A (en) | 1996-10-29 |
Family
ID=13812236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7083783A Pending JPH08280837A (en) | 1995-04-10 | 1995-04-10 | Sprinkler unwinding piping |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08280837A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000257123A (en) * | 1999-03-04 | 2000-09-19 | Omura Katsuyuki | Connection water supply pipe facility and indoor hydrant facility |
| DE10227180A1 (en) * | 2001-06-25 | 2003-01-16 | Dong A Flexible Metal Tubes Co | Coupling structure for protective net fixed to flexible tube of sprinkler, has ends of protective net set around straight portions of flexible tube, and fixed in place by fuse welding material |
| JP2009185351A (en) * | 2008-02-07 | 2009-08-20 | Nippon Steel & Sumikin Stainless Steel Corp | Flexible tube made of ferritic stainless steel |
| CN110005211A (en) * | 2019-04-12 | 2019-07-12 | 中建八局第二建设有限公司 | A kind of wet wall and the concrete surface of plastering conserves the water spraying tool combined |
-
1995
- 1995-04-10 JP JP7083783A patent/JPH08280837A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000257123A (en) * | 1999-03-04 | 2000-09-19 | Omura Katsuyuki | Connection water supply pipe facility and indoor hydrant facility |
| DE10227180A1 (en) * | 2001-06-25 | 2003-01-16 | Dong A Flexible Metal Tubes Co | Coupling structure for protective net fixed to flexible tube of sprinkler, has ends of protective net set around straight portions of flexible tube, and fixed in place by fuse welding material |
| DE10227180B4 (en) * | 2001-06-25 | 2008-02-07 | Dong-A Flexible Metal Tubes Co., Ltd. | Method for producing a protective net reinforced, flexible hose for a sprinkler |
| JP2009185351A (en) * | 2008-02-07 | 2009-08-20 | Nippon Steel & Sumikin Stainless Steel Corp | Flexible tube made of ferritic stainless steel |
| CN110005211A (en) * | 2019-04-12 | 2019-07-12 | 中建八局第二建设有限公司 | A kind of wet wall and the concrete surface of plastering conserves the water spraying tool combined |
| CN110005211B (en) * | 2019-04-12 | 2024-03-08 | 中建八局第二建设有限公司 | Water spraying tool combining plastering wet wall and concrete surface maintenance |
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