JPH0419121A - Manufacture of laminated spiral pipe - Google Patents
Manufacture of laminated spiral pipeInfo
- Publication number
- JPH0419121A JPH0419121A JP2123127A JP12312790A JPH0419121A JP H0419121 A JPH0419121 A JP H0419121A JP 2123127 A JP2123127 A JP 2123127A JP 12312790 A JP12312790 A JP 12312790A JP H0419121 A JPH0419121 A JP H0419121A
- Authority
- JP
- Japan
- Prior art keywords
- spiral
- tube
- guide body
- strips
- pipe
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 51
- 239000000463 material Substances 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000011162 core material Substances 0.000 claims description 10
- 229920003002 synthetic resin Polymers 0.000 claims description 7
- 239000000057 synthetic resin Substances 0.000 claims description 7
- 238000010030 laminating Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 12
- 239000011248 coating agent Substances 0.000 abstract description 7
- 238000000576 coating method Methods 0.000 abstract description 7
- 238000000465 moulding Methods 0.000 abstract 1
- 238000007664 blowing Methods 0.000 description 23
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、各種流体輸送用ラインパイプ、ダクト、煙突
、立坑等に用いて好適な積層スパイラル管の製造方法に
関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of manufacturing a laminated spiral pipe suitable for use in various fluid transport line pipes, ducts, chimneys, shafts, etc.
［従来の技術］
従来、例えば特公昭５Ｂ−２９２１６号公報に記載の如
くの積層スパイラル管が提案されている。積層スパイラ
ル管は、複数のストリップを、それぞれスパイラル状に
巻き回し、内層側ストリップのエツジ継ぎ合わせ部を外
層側ストリップにて覆うように互いに積層し、かつ接着
することにて構成されている。[Prior Art] Conventionally, a laminated spiral tube as described in, for example, Japanese Patent Publication No. 5B-29216 has been proposed. A laminated spiral tube is constructed by winding a plurality of strips in a spiral shape, stacking them on each other so as to cover the edge joints of the inner strips with the outer strips, and bonding them together.
この時、従来の積層スパイラル管を構成するストリップ
としては、鋼板、又は合成樹脂板等が用いられている。At this time, a steel plate, a synthetic resin plate, or the like is used as the strip constituting the conventional laminated spiral pipe.
［発明が解決しようとする課題］
然るに、鋼板からなるストリップを用いた積層スパイラ
ル管は、高強度、かつ高変形能を備えるために地震等の
動的外力に強いものの、錆び易いという問題点がある。[Problem to be solved by the invention] However, although a laminated spiral pipe using strips made of steel plates has high strength and high deformability and is resistant to dynamic external forces such as earthquakes, it has the problem of being susceptible to rust. be.
又、合成樹脂板からなるストリップを用いた積層スパイ
ラル管は、錆びにくいものの、強度、及び変形能の点で
脆弱であるという問題点がある。Furthermore, although a laminated spiral tube using strips made of synthetic resin plates is resistant to rust, it has the problem of being fragile in terms of strength and deformability.
本発明は、錆びに＜＜、高強度、かつ高変形能を備えた
積層スパイラル管を製造可能とすることを目的とする。An object of the present invention is to make it possible to manufacture a laminated spiral pipe that is resistant to rust, has high strength, and has high deformability.
［課題を解決するための手段］
請求項１に記載の本発明は、鋼板からなる芯材を合成樹
脂からなる被覆材により被覆したストリップを用意し、
複数の上記ストリップをスパイラル状に巻き回し、内層
側ストリップのエツジ継ぎ合わせ部を外層側ストリップ
にて覆うように互いに一部積層し、かつ接着することに
て構成される積層スパイラル管の製造方法であって、製
造対象管の管軸と同軸をなすガイド体を該製造対象管の
内壁が沿うように配置し、複数の前記ストリ・ツブを前
記が一部積層状態となるように、かつ該ガイド体の軸に
対して一定の入射角度で該ガイド体まわりに送り込み、
それらストリップの積層部を互いに熱融着するとともに
スパイラル成形するようにしたものである。[Means for Solving the Problems] The present invention according to claim 1 provides a strip in which a core material made of a steel plate is covered with a covering material made of a synthetic resin,
A method for manufacturing a laminated spiral tube, which is constructed by winding a plurality of the above strips in a spiral, partially laminating each other so that the edge joints of the inner strips are covered with the outer strips, and gluing them together. A guide body coaxial with the tube axis of the tube to be manufactured is arranged so that the inner wall of the tube to be manufactured runs along the guide body, and the plurality of strips and tubes are arranged so that they are partially laminated, and the guide Feed around the guide body at a constant angle of incidence with respect to the axis of the body,
The laminated portions of these strips are heat-sealed together and spirally formed.
請求項２に記載の本発明は、前記ガイド体の外周部に管
送出ベルトをスパイラル状に巻き付け、該ガイド体まわ
りにてスパイラル成形されるストリップを該ガイド体と
該管送出ベルトとの間に挿入し、該管送出ベルトの駆動
により、該ストリップにて成形済のスパイラル管を該ガ
イド体に沿って順次送出するようにしたものである。In the present invention as set forth in claim 2, a tube delivery belt is spirally wound around the outer periphery of the guide body, and a strip spirally formed around the guide body is disposed between the guide body and the tube delivery belt. The spiral tube formed by the strip is sequentially delivered along the guide body by driving the pipe delivery belt.
請求項３に記載の本発明は、前記ガイド体の周囲に、該
ガイド体まわりを回転かつ横移動てきる旋回部材を配置
し、該旋回部材上に複数のストリップ供給装置を設け、
該旋回部材を回転かつ横移動しながら、前記複数のスト
リップを各ストリップ供給装置から該ガイド体まわりに
送り込んでスパイラル成形し、該スパイラル成形後に該
ガイド体を縮径し、該ガイド体まわりのスパイラル管を
該ガイド体の外方に移送するようにしたものである。The present invention according to claim 3 provides a method for disposing a rotating member around the guide body that rotates and moves laterally around the guide body, and providing a plurality of strip supply devices on the rotating member,
While rotating and laterally moving the rotating member, the plurality of strips are fed from each strip supply device around the guide body to form a spiral, and after the spiral forming, the diameter of the guide body is reduced to form a spiral around the guide body. The tube is transferred to the outside of the guide body.
［作用コ
請求項１に記載の本発明によれば、芯材を構成する鋼板
の存在により、高強度、かつ高変形能を備える積層スパ
イラル管を形成できる。又、合成樹脂からなる被覆材に
より上記鋼板を被覆するものであるから、錆びにくい積
層スパイラル管を形成てきる。即ち、錆びに＜＜、高強
度、かつ高変形能を備えた積層スパイラル管を製造する
ことかできる。[Function] According to the present invention as set forth in claim 1, a laminated spiral tube having high strength and high deformability can be formed due to the presence of the steel plate constituting the core material. Furthermore, since the steel plate is covered with a covering material made of synthetic resin, a laminated spiral pipe that is resistant to rust can be formed. That is, it is possible to manufacture a laminated spiral tube that is resistant to rust, has high strength, and has high deformability.
尚、本発明において、被覆材は、必ずしも芯材の両面を
覆うものでなく、芯材の片面のみを覆うものであっても
良い。In the present invention, the covering material does not necessarily cover both sides of the core material, and may cover only one side of the core material.
請求項２に記載の本発明によれば、複数のストリップは
ガイド体まわりにてスパイラル成形されるとともに、管
送出ベルトの駆動により該ガイド体に沿って順次送出さ
れ、結果として、長尺スパイラル管を連続造管てきる。According to the present invention as set forth in claim 2, the plurality of strips are spirally formed around the guide body, and are sequentially delivered along the guide body by driving the tube delivery belt, and as a result, a long spiral tube is formed. can be manufactured continuously.
請求項３に記載の本発明によれば、複数のストリップが
ガイド体まわりにてスパイラル成形され、単位長のスパ
イラル管が成形されると、ガイド体の縮径によって該単
位長のスパイラル管を該ガイド体の外方に容易に移送せ
しめ得る。そして、該スパイラル管のテール部に切離さ
れることなく後続している新たなストリップにて新たな
スパイラル管の成形をくり返すことができ、結果として
長尺スパイラル管を連続造管できる。According to the present invention as set forth in claim 3, when a plurality of strips are spirally formed around the guide body and a unit length spiral tube is formed, the diameter of the guide body is reduced to form the unit length spiral tube. It can be easily transferred to the outside of the guide body. Then, forming a new spiral tube can be repeated using a new strip following the tail portion of the spiral tube without being cut off, and as a result, a long spiral tube can be continuously manufactured.
［実施例］
第１図は本発明の実施に用いられるスパイラル管製造装
置の一例を模式的に示す平面図、第２図はスパイラル管
製造装置を示す正面図、第３図は第１図の■−■線に沿
う矢視図、第４図は第１図のＴＶ−ＴＶ線に沿う矢視図
、第５図（Ａ）〜（Ｃ）はスパイラル管製造装置の他の
例を示す模式図、第６図はスパイラル管製造装置の更に
他の例を示す斜視図、第７図は第６図の要部断面図、第
８図は第７図の■−■線に沿う矢視図、第９図は積層ス
パイラル管を示す全体図、第１０図は第９図のＸ−Ｘ＠
に沿う断面図である。[Example] FIG. 1 is a plan view schematically showing an example of a spiral tube manufacturing device used for carrying out the present invention, FIG. 2 is a front view showing the spiral tube manufacturing device, and FIG. Fig. 4 is a view taken along the TV-TV line in Fig. 1, and Figs. 5 (A) to (C) are schematic diagrams showing other examples of spiral pipe manufacturing equipment. Fig. 6 is a perspective view showing still another example of the spiral pipe manufacturing device, Fig. 7 is a sectional view of the main part of Fig. 6, and Fig. 8 is a view taken along the line ■-■ in Fig. 7. , Fig. 9 is an overall view showing the laminated spiral tube, and Fig. 10 is the X-X@ of Fig. 9.
FIG.
積層スパイラル管１０は、第９図、第１０図に示す如く
、２枚の同一断面サイズのストリップ１１．１２を、互
いにストリップ幅の例えば半幅をずらした状態でそれぞ
れスパイラル状に巻き回し、内層側ストリップ１１の突
き合わせ状のエツジ継ぎ合わせ部１１Ａを外層側ストリ
ップ１２にて覆うように互いに積層し、かつ接着するこ
とにて構成されている。１２Ａは外層側ストリップ１２
の突き合わせ状のエツジ継ぎ合わせ部である。As shown in FIGS. 9 and 10, the laminated spiral tube 10 is constructed by winding two strips 11 and 12 of the same cross-sectional size in a spiral shape with the strip width shifted by, for example, half the width of the strip, so that the inner layer side It is constructed by laminating the outer layer side strips 12 so as to cover the abutted edge joint portions 11A of the strips 11 and bonding them together. 12A is the outer layer side strip 12
This is a butt-like edge joint.
然して、両ストリップ１１．１２のそれぞれは、鋼板か
らなる芯材１３を、塩化ビニル樹脂、ポリエチレン樹脂
、合成ゴム等の合成樹脂からなる被覆材１４により被覆
したものを用いることとされている。Each of the strips 11 and 12 uses a core material 13 made of a steel plate covered with a covering material 14 made of a synthetic resin such as vinyl chloride resin, polyethylene resin, or synthetic rubber.
この時、積層スパイラル管１０は、第１図〜第４図に示
す如くのスパイラル管製造装置２０により製造される。At this time, the laminated spiral tube 10 is manufactured by a spiral tube manufacturing apparatus 20 as shown in FIGS. 1 to 4.
スパイラル管製造装置２０は、第１と第２の２基のピン
チローラ装置２１．２２が、基台２０Ａ上の機枠２３に
配設されている０両ピンチローラ装置２１．２２は、そ
れぞれ、ピンチローラ２４と、その駆動装置２５を有し
て構成され、ピンチローラ装置２１は内層側ストリップ
１１を、ピンチローラ装置２２は外層側ストリップ１２
を送り込み可能とする。The spiral tube manufacturing apparatus 20 includes two pinch roller devices 21.22, a first and a second pinch roller device 21.22, which are disposed on a machine frame 23 on a base 20A. The pinch roller device 21 is configured to have a pinch roller 24 and its driving device 25, and the pinch roller device 21 drives the inner strip 11, and the pinch roller device 22 drives the outer strip 12.
It is possible to send.
尚、スパイラル管製造装置２０は、各ピンチローラ装置
２１．２２の入側に、ストリップ１１．１２の両側縁部
をガイドするストリップ挿入ガイド盤２６を配置しであ
る。ストリップ挿入ガイド盤２６は、ガイトローラによ
って代替できる。Incidentally, the spiral tube manufacturing apparatus 20 is arranged with a strip insertion guide board 26 for guiding both side edges of the strip 11.12 on the entry side of each pinch roller device 21.22. The strip insertion guide board 26 can be replaced by a guide roller.
スパイラル管製造装置２０は、基台２０Ａの一端部に設
けた支持部２７と他端部に設けた受部２８とに、ガイド
管２９を支持させている。２８Ａはポールキャスタであ
る。ガイド管２９はスパイラル管１０の管軸と同軸をな
し、かつ該スパイラル管１０の内壁が沿うように配置さ
れている。In the spiral tube manufacturing apparatus 20, a guide tube 29 is supported by a support section 27 provided at one end of the base 20A and a receiving section 28 provided at the other end. 28A is a pole caster. The guide tube 29 is coaxial with the tube axis of the spiral tube 10, and is arranged along the inner wall of the spiral tube 10.
そして、スパイラル管製造袋Ｗ２０は、機枠２３に設け
た軸受部３０に支持される圧着ローラ３１を有している
。圧着ローラ３１は、ガイド管２９の外周部に相対する
状態で、スパイラル管１０の管軸に対して斜交し、該ス
パイラル管１０の外壁に沿うように配置されている。The spiral tube manufacturing bag W20 has a pressure roller 31 supported by a bearing portion 30 provided on the machine frame 23. The pressure roller 31 is disposed opposite to the outer periphery of the guide tube 29, obliquely intersecting the tube axis of the spiral tube 10, and along the outer wall of the spiral tube 10.
スパイラル管製造装置２０は、圧着ローラ３１の入側に
熱風吹出し装置３４を配置しである。熱風吹出し装置３
４は、送風機３５とヒータ３６と熱風吹出しノズル３７
とを有して構成され、■ピンチローラ装置２１．２２に
より送り込まれて互いに重なり合うストリップ１１．１
２の積層部を加、熱するとともに、■スパイラル管１０
として既にスパイラル成形過程にある内層側ストリップ
１１と、ピンチローラ装置２２により送り込まれて該内
層側ストリップ１１の上面に重なることとなる外層側ス
トリップ１２の積層部を加熱する。The spiral tube manufacturing apparatus 20 has a hot air blowing device 34 disposed on the entrance side of the pressure roller 31. Hot air blowing device 3
4 is a blower 35, a heater 36, and a hot air blowing nozzle 37
1. Strips 11.1 fed by a pinch roller device 21.22 and overlapping each other;
While heating the laminated part of 2, ■ the spiral tube 10
As a result, the laminated portion of the inner strip 11, which is already in the process of spiral forming, and the outer strip 12, which is fed by the pinch roller device 22 and overlaps the upper surface of the inner strip 11, is heated.
熱風吹出し装置３４による上記■、■により、両ストリ
ップ１１．１２はそれらの被覆材１４を溶融せしめられ
、その後、熱風吹出し装置３４に後続する圧着ローラ３
１により挟圧されて互いに熱融着される。The coating materials 14 of both strips 11, 12 are melted by the hot air blowing device 34 as described above, and then the pressure roller 3 following the hot air blowing device 34
1 and heat-sealed to each other.
スパイラル管製造装置２０は、圧着ローラ３１の出側に
冷風吹出しノズル３８を配置しである。The spiral tube manufacturing apparatus 20 has a cold air blowing nozzle 38 disposed on the exit side of the pressure roller 31.
冷風吹出しノズル３８は圧着ローラ３１により熱融着さ
れる内層側ストリップ１１と外層側ストリップ１２の溶
融被覆材１４を冷却し、固化せしめる。冷風吹出しノズ
ル３８は、冷却ローラにより代替できる。The cold air blowing nozzle 38 cools and solidifies the molten coating material 14 of the inner layer side strip 11 and the outer layer side strip 12 which are thermally fused by the pressure roller 31. The cold air blowing nozzle 38 can be replaced by a cooling roller.
更に、スパイラル管製造装置２０は、冷風吹出しノズル
３８の下流側に管送用ベルト３９を配置しである。管送
用ベルト３９は、耐熱ベルトからなり、基台２０Ａ上の
機枠４１に配設されている駆動プーリ４２、アイドルロ
ーラ４３に巻き回され、かつガイド管２９の外周部にス
パイラル状に緊張状態にて巻き付けられている。駆動プ
ーリ４２は、駆動モータ４４、減速機４５により駆動さ
れる。これにより、スパイラル管製造装置２０にあって
は、−ガイド管２９まわりにてスパイラル成形されるス
トリップ１１．１２を該ガイド管２９と該管送用ベルト
３９との間に挿入し、該管送用ベルト３９の駆動により
、該ストリップ１１．１２にて成形済のスパイラル管１
０を該ガイド管２９に沿って順次送出可能とするもので
ある。Furthermore, the spiral tube manufacturing apparatus 20 has a tube feeding belt 39 disposed downstream of the cold air blowing nozzle 38. The tube feeding belt 39 is made of a heat-resistant belt, is wound around a drive pulley 42 and an idle roller 43 disposed on a machine frame 41 on the base 20A, and is tensioned spirally around the outer periphery of the guide tube 29. It is wrapped in condition. The drive pulley 42 is driven by a drive motor 44 and a reduction gear 45. As a result, in the spiral tube manufacturing apparatus 20, - the strip 11, 12 to be spirally formed around the guide tube 29 is inserted between the guide tube 29 and the tube conveying belt 39; By driving the belt 39, the spiral tube 1 which has been formed by the strip 11.12 is
0 can be sequentially delivered along the guide tube 29.
尚、ガイド管２９の外周面は、表面硬質クロムメツキが
施され、ストリップ１１．１２との摩擦を低減せしめら
れている。又、ガイド管２９の外周部に拾紙としての油
紙等を巻き込み、この拾紙の外周部にストリップ１１．
１２を送り込むものとすれば、ストリップ１１．１２と
ガイド管２９との摩擦をより一層低減できる。The outer peripheral surface of the guide tube 29 is plated with hard chrome to reduce friction with the strips 11 and 12. Also, oil paper or the like is wrapped around the outer periphery of the guide tube 29 as a pick-up paper, and the strip 11.
12, the friction between the strip 11.12 and the guide tube 29 can be further reduced.
次に、上記スパイラル管製造装置２０によるスパイラル
管１０の製造方法について説明する。Next, a method for manufacturing the spiral tube 10 using the spiral tube manufacturing apparatus 20 will be described.
■ストリップ１１．１２を用意し、これらを例えばバイ
ブライン建設現場にてアンコイルしつつ、第１と第２の
ピンチローラ装置２１．２２により圧着／送りローラ３
１に向けて送り込む。■Prepare strips 11 and 12, and while uncoiling them at a Vibration line construction site, press the strips 11 and 12 with the first and second pinch roller devices 21 and 22 and press the feed roller 3.
Send it towards 1.
この時、内層側ストリップ１１と外層側ストリップ１２
は、内層側ストリップ１１のエツジ継ぎ合わせ部１１Ａ
が外層側ストリップ１２にて覆われ、互いに一部積層状
態となる如くに、それらのストリップ挿入ガイド盤２６
によりガイドされて送り込まれる。At this time, the inner layer side strip 11 and the outer layer side strip 12
is the edge joint portion 11A of the inner layer side strip 11
are covered with the outer layer side strip 12, and the strip insertion guide plate 26 is inserted so that the strips are partially laminated with each other.
guided by.
■ストリップ１１．１２は、ガイド管２９と圧着リーラ
３１の間に挿入されるに際し、熱風吹出し装置３４によ
り加熱される。これにより、ストリップ１１．１２は、
それらの被覆材１４を溶融せしめられて、互いの積層部
を熱融着せしめられ、ガイド管２９の管軸に対して一定
の入射角度で該ガイド管２９まわりに送り込まれる。(2) When the strips 11 and 12 are inserted between the guide tube 29 and the crimping reeler 31, they are heated by the hot air blowing device 34. This makes strips 11.12
The coating materials 14 are melted to heat-seal the laminated parts to each other, and fed around the guide tube 29 at a constant angle of incidence with respect to the tube axis of the guide tube 29.
尚、熱融着されたストリップ１１．１２の被覆材１４は
、冷風吹出しノズル３８により固化せしめられる。The coating material 14 of the heat-sealed strips 11, 12 is solidified by a cold air blowing nozzle 38.
■ガイド管２９まわりに送り込まれたストリップ１１．
１２は、ガイド管２９の外周部に沿ってスパイラル成形
され、更にガイド管２９と管送用ベルト３９の間に挿入
されて挟圧され、長尺スパイラル管１０となる。■Strip 11 fed around guide tube 29.
12 is formed into a spiral along the outer periphery of the guide tube 29, and is further inserted between the guide tube 29 and the tube feeding belt 39 and compressed to form the long spiral tube 10.
そして、スパイラル管１ｏは、管送用ベルト３９の裏地
と外層側ストリップ１２の外表面との摩擦により、表面
滑らかなガイド管２９の外周部に沿って連続的に送出さ
れる。スパイラル管１゜は直ちに直進布設可能である。The spiral tube 1o is continuously fed out along the outer periphery of the guide tube 29, which has a smooth surface, due to friction between the lining of the tube feeding belt 39 and the outer surface of the outer layer side strip 12. The 1° spiral pipe can be immediately installed in a straight line.
上記スパイラル管製造装置２ｏによれば、芯材１３を構
成する鋼板の存在により、高強度、かつ高変形能を備え
る積層スパイラル管１ｏを形成できる。又、合成樹脂か
らなる被覆材１４により上記鋼板を被覆するものである
から、錆びにくい積層スパイラル管１０を形成できる。According to the spiral tube manufacturing apparatus 2o, due to the presence of the steel plate constituting the core material 13, a laminated spiral tube 1o having high strength and high deformability can be formed. Furthermore, since the steel plate is covered with the covering material 14 made of synthetic resin, the laminated spiral pipe 10 that is resistant to rust can be formed.
即ち、錆びに〈＜、高強度、かつ高変形能を備えた積層
スパイラル管１０を製造することかできる。That is, it is possible to manufacture a laminated spiral pipe 10 that is resistant to rust, has high strength, and has high deformability.
又、ストリップ１１．１２はガイド管２９まわりにてス
パイラル成形されるとともに、管送用ベルト３９の駆動
により該ガイド管２９に沿って順次送出され、結果とし
て長尺スパイラル管１ｏを連続造管できる。Further, the strips 11 and 12 are spirally formed around the guide tube 29, and are sequentially sent out along the guide tube 29 by driving the tube feeding belt 39, so that a long spiral tube 1o can be continuously formed. .
本発明者は、上記スパイラル管製造装置２ｏによる具体
的製造例として、ポリエチレン被覆鋼板をストリップ１
１．１２としてスパイラル管１゜を製造した。この時、
ストリップ輻１００ｓ＋ｍ 、管内径３００ｍｍである
。又、熱風吹出し装置３４の熱風温度は３００℃、管送
用ベルト３９の張力は１３０ｋｇ 、 ＋（１）駆動プ
ーリ４２の直径は３００１１ｍ テあった。その結果、
錆びに＜＜、高強度、かつ高変形能を備えたスパイラル
管１０を提供できることを確認した。 第５図（Ａ）〜
（Ｃ）は上記第１図〜第４図のスパイラル管製造装置２
０を一部変形したスパイラル管製造装置５０である。As a specific manufacturing example using the spiral pipe manufacturing apparatus 2o, the present inventor fabricated a polyethylene-coated steel plate into a strip 1.
A 1° spiral tube was manufactured as 1.12. At this time,
The strip radius is 100 s+m, and the tube inner diameter is 300 mm. Further, the hot air temperature of the hot air blowing device 34 was 300°C, the tension of the pipe belt 39 was 130 kg, and the diameter of the driving pulley 42 was 30011 m. the result,
It has been confirmed that it is possible to provide a spiral tube 10 that is resistant to rust, has high strength, and has high deformability. Figure 5 (A) ~
(C) is the spiral tube manufacturing apparatus 2 shown in Figs. 1 to 4 above.
This is a spiral tube manufacturing apparatus 50 that is a partially modified version of 0.
このスパイラル管製造装置５０が上記装置２゜と異なる
主たる点は、（１）圧着ローラとして、前述の装置２０
における圧着ローラ３１の他に、圧着ローラ３１の入側
にも圧着ローラ３１Ａを設けて、（２）熱風吹出し装置
として、圧着ローラ３１Ａの入側に設けた第１の熱風吹
出し装置３４Ａと、圧着ローラ３１の入側に設けた第２
の熱風吹出し装置３４Ｂの２基の熱風吹出し装置を設け
たことにある。この時、■第１の熱風吹出し装置３４Ａ
はピンチローラ装置２１．２２により送り込まれて圧着
ローラ３１Ａにより圧着せしめれるストリップ１１．１
２の積層部を加熱し、■第２の熱風吹出し装置３４Ｂは
既にガイド管２９まわりにてスパイラル成形済であるス
トリップ１１と、ピンチローラ装置２２により送り込ま
れて圧着ローラ３１により該ストリップ１１の上面に圧
着されるストリップ１２の積層部を加熱する。The main points in which this spiral tube manufacturing apparatus 50 differs from the above-mentioned apparatus 2 are that (1) the above-mentioned apparatus 20 is used as a pressure roller;
In addition to the pressure roller 31, a pressure roller 31A is also provided on the inlet side of the pressure roller 31, and (2) a first hot air blower 34A provided on the inlet side of the pressure roller 31A serves as a hot air blower; A second roller provided on the entrance side of the roller 31
The hot air blowing device 34B is provided with two hot air blowing devices. At this time, ■first hot air blowing device 34A
is a strip 11.1 fed by a pinch roller device 21.22 and crimped by a crimping roller 31A.
2. The second hot air blowing device 34B heats the laminated portion of the second hot air blowing device 34B. The stack of strips 12 to be crimped is heated.
尚、スパイラル管製造装置５０にあっては、装置２０に
おけるストリップ挿入ガイド盤２６に代わり、ガイドロ
ーラ５１によりストリップ１１．１２の両側縁部をガイ
ドする。In the spiral tube manufacturing apparatus 50, instead of the strip insertion guide plate 26 in the apparatus 20, guide rollers 51 guide both side edges of the strips 11 and 12.
又、スパイラル管製造装置５０は、前述した拾紙供給装
置５２を備えている。Further, the spiral tube manufacturing apparatus 50 is equipped with the above-mentioned picked paper supply device 52.
尚、スパイラル管製造装置５０は、装置２０における管
送出ベルト３９を備え、スパイラル管１０を連続的に送
出可能としている。Note that the spiral tube manufacturing device 50 includes the tube delivery belt 39 in the device 20, and is capable of continuously feeding out the spiral tube 10.
第６図、第７図のスパイラル管製造装置６゜は、製造対
象管１０の管軸と同軸をなすガイド管６１を該製造対象
管１０の内壁か沿うように配置しである。In the spiral tube manufacturing apparatus 6° shown in FIGS. 6 and 7, a guide tube 61 coaxial with the tube axis of the tube 10 to be manufactured is arranged along the inner wall of the tube 10 to be manufactured.
そして、スパイラル管製造装置６０は、上記ガイド管６
１の周囲に該ガイド管６１まわりを回転かつ横移動でき
る旋回部材６２を配置しである。Then, the spiral tube manufacturing device 60 includes the guide tube 6
A rotating member 62 that can rotate and move laterally around the guide tube 61 is disposed around the guide tube 61.
旋回部材６２は、ガイド管６１に沿って横移動される一
対の送りねじ６３の回転により横移動され、かつ両送り
ねし６３まわりに設けられているプーリ６４に巻き回さ
れているチェーン６５により回転される。６６は旋回部
材６２の外周部に設けられているスプロケット歯である
。The turning member 62 is moved laterally by the rotation of a pair of feed screws 63 that are moved laterally along the guide tube 61, and is moved laterally by a chain 65 wound around a pulley 64 provided around both feed screws 63. be rotated. 66 is a sprocket tooth provided on the outer periphery of the rotating member 62.
スパイラル管製造装置６０は、旋回部材６２に複数個（
この実施例では２個）のストリップ供給装置７１．７２
を備えており、各ストリップ供給装置７１．７２はそれ
ぞれ内層側ストリップ１１と外層側ストリップ１２を該
ガイド管６１まゎりに供給可能とする。この時、旋回部
材６２は、ガイド管６１に対するストリップ１１．１２
の送り込み部位に近接する熱風吹出し装置７３も備えて
いる。The spiral tube manufacturing device 60 has a plurality of (
In this embodiment, there are two strip feeding devices 71, 72.
Each of the strip supply devices 71 and 72 is capable of supplying the inner strip 11 and the outer strip 12 around the guide tube 61, respectively. At this time, the pivoting member 62 moves the strip 11.12 relative to the guide tube 61.
A hot air blowing device 73 is also provided near the feeding site.
又、スパイラル管製造装置６ｏは、ガイド管６１を周方
向に例えば４分割している。そして、ガイド管６１の各
セグメント６１Ａ〜６１Ｄは、リンク装置７４、送りね
じ７５まゎりに螺着されている送りスリーブ７６にて拡
縮される。即ち、送りねじ７５により拡径方向に送られ
る送りスリーブ７６がストッパ７７に係合する状態でガ
イド管６１の各セグメント６１Ａ〜６１Ｄは今回製造対
象管１０の内径位置に設定され、送りスリーブ７６が送
りねじ７５により縮径方向に送られる時、ガイド管６１
の各セグメント６１Ａ〜６１Ｄは今回製造対象管１０の
内径位置より縮径されて該ガイド管６１まわりにて成形
済のスパイラル管１０を該ガイド管６１の外方に移送可
能とする。Further, in the spiral tube manufacturing device 6o, the guide tube 61 is divided into, for example, four parts in the circumferential direction. Each segment 61A to 61D of the guide tube 61 is expanded or contracted by a link device 74 and a feed sleeve 76 screwed around a feed screw 75. That is, each segment 61A to 61D of the guide tube 61 is set at the inner diameter position of the tube 10 to be manufactured this time, with the feed sleeve 76 sent in the diametrically expanding direction by the feed screw 75 engaged with the stopper 77, and the feed sleeve 76 is When the guide tube 61 is sent in the diameter reduction direction by the feed screw 75
Each of the segments 61A to 61D is reduced in diameter from the inner diameter position of the tube 10 to be manufactured this time, so that the formed spiral tube 10 can be transferred to the outside of the guide tube 61 around the guide tube 61.
次に、上記スパイラル管製造装置６ｏによるスパイラル
管１０の製造方法について説明する。Next, a method for manufacturing the spiral tube 10 using the spiral tube manufacturing apparatus 6o will be described.
■ストリップ１１．１２を用意し、これらを旋回部材６
２上のストリップ供給装置７１．７２にセットする。他
方、ガイド管６１を拡径し、各セグメント６１Ａ〜６１
Ｄを今回製造対象管１ｏの内径位置に設定する。■Prepare strips 11 and 12 and attach them to the turning member 6.
2 on the strip supply device 71, 72. On the other hand, the diameter of the guide tube 61 is expanded, and each segment 61A to 61
D is set to the inner diameter position of the pipe 1o to be manufactured this time.
■旋回部材６２をガイド管６１まゎりにて回転かつ横移
動しながら、各ストリップ供給装置７１．７２のストリ
ップ１１．１２をガイド管６１まわりに送り込む。(2) While rotating and laterally moving the turning member 62 around the guide tube 61, the strips 11 and 12 of each strip supply device 71 and 72 are fed around the guide tube 61.
この時、ストリップ１１．１２は、内層側ストリップ１
１のエツジ継ぎ合わせ部１１Ａが外層側ストリップ１２
にて覆われ、互いに一部積層状態となる如くに送り込ま
れる。At this time, the strips 11 and 12 are the inner layer side strip 1.
The edge joint part 11A of 1 is the outer layer side strip 12
and are fed so that they are partially laminated with each other.
■ストリップ１１．１２は、ガイド管６１まわりに送り
込まれるに際し、熱風吹出し装置７３により加熱される
。これにより、ストリップ１１．１２は、それらの被覆
材１４を溶融せしめられて、互いの積層部を熱融着せし
められ、ガイド管６１上にてスパイラル成形される。(2) When the strips 11 and 12 are fed around the guide tube 61, they are heated by the hot air blowing device 73. As a result, the strips 11 and 12 are spirally formed on the guide tube 61 by melting their covering materials 14 and heat-sealing their laminated parts.
尚、熱融着されたストリップ１１．１２の被覆材１４は
、不図示の冷却手段により固化せしめられる。The heat-sealed coating material 14 of the strips 11, 12 is solidified by a cooling means (not shown).
■旋回部材６２の上記横移動の１ストロークにより、ス
トリップ１１．１２がガイド管６１の長手方向に渡る単
位長のスパイラル管１０を形成し終ると、ガイド管６１
の各セグメント６１Ａ〜６１Ｄを縮径する。そして、上
記スパイラル管１０及び旋回部材６２をガイド管６１に
沿って管送出方向に移送する。これら■〜■をくり返し
、上記スパイラル管１０を順次長尺化する。(1) When the strips 11 and 12 finish forming the spiral tube 10 of unit length extending in the longitudinal direction of the guide tube 61 by one stroke of the above-mentioned lateral movement of the turning member 62, the guide tube 61
The diameter of each segment 61A to 61D is reduced. Then, the spiral tube 10 and the turning member 62 are transferred along the guide tube 61 in the tube delivery direction. By repeating these steps (1) to (2), the spiral tube 10 is successively lengthened.
上記スパイラル管製造装置６０によれば、複数のストリ
ップ１１．１２がガイド管６１まわりにてスパイラル成
形され、単位長のスパイラル管１０か成形されると、ガ
イド管６１の縮径によって該単位長のスパイラル管１ｏ
を該ガイド管６１の外方に容易に移送せしめ得る。そし
て、該スパイラル管のテール部に切離されることなく後
続している新たなストリップ１１．１２にて新たなスパ
イラル管１０の成形をくり返すことができ、結果として
長尺スパイラル管１０を連続造管できる。According to the spiral tube manufacturing apparatus 60, when a plurality of strips 11, 12 are spirally formed around the guide tube 61 and a unit length spiral tube 10 is formed, the diameter of the guide tube 61 is reduced to reduce the unit length. spiral tube 1o
can be easily transferred to the outside of the guide tube 61. Then, the forming of a new spiral tube 10 can be repeated with a new strip 11, 12 that follows the tail portion of the spiral tube without being cut off, and as a result, a long spiral tube 10 is continuously manufactured. Can be piped.
本発明者は、上記スパイラル管製造装置６０による具体
的製造例として、ポリエチレン被覆鋼板をストリップ１
１．１２としてスパイラル管１０を製造した。この時、
ストリップ暢１００畷園、管内径３００鳳鳳である。又
、熱風吹出し装置７３の熱風温度は３００℃であった。As a specific manufacturing example using the spiral pipe manufacturing apparatus 60, the present inventor fabricated a polyethylene-coated steel plate into a strip 1.
A spiral tube 10 was manufactured as Example 1.12. At this time,
The strip length is 100 mm, and the inner diameter of the tube is 300 mm. Further, the hot air temperature of the hot air blowing device 73 was 300°C.
その結果、錆びにくく、高強度、かつ高変形能を備えた
スパイラル管１０を提供できることを確認した。As a result, it was confirmed that a spiral tube 10 that is resistant to rust, has high strength, and has high deformability can be provided.
尚、本発明の実施において、芯材の鋼板強度レベルの変
化、芯材の埋込み位置或いはストリップを適宜３枚以上
多層巻きすることにより、強度、及び変形能をより向上
できる。In carrying out the present invention, the strength and deformability can be further improved by changing the strength level of the steel plate of the core material, by changing the embedding position of the core material, or by appropriately winding three or more strips in multiple layers.
又、被覆材の材料や膜厚の選定により、錆びにくいこと
の他、各種用途に応じた表面性状を具備できる。In addition, by selecting the material and film thickness of the coating material, it is possible to provide not only resistance to rust but also surface properties suitable for various uses.
又、本発明の実施において、製造対象管の管軸まわりに
配設するローラ個数は、管径、管厚に応して任意である
。Further, in carrying out the present invention, the number of rollers disposed around the tube axis of the tube to be manufactured is arbitrary depending on the tube diameter and tube thickness.
［発明の効果］
以上のように本発明によれば、錆びにくく、高強度、か
つ高変形能を備えた積層スパイラル管を製造することか
てきる。[Effects of the Invention] As described above, according to the present invention, it is possible to manufacture a laminated spiral pipe that is resistant to rust, has high strength, and has high deformability.
第１図は本発明の実施に用いられるスパイラル着製造装
置の一例を模式的に示す平面図、第２図はスパイラル管
製造装置を示す正面図、第３図は第１図の■−■線に沿
う矢視図、第４図は第１図のＩＶ−ＩＶ線に沿う矢視図
、第５図（Ａ）〜（Ｃ）はスパイラル管製造装置の他の
例を示す模式図、第６図はスパイラル管製造装置の更に
他の例を示す斜視図、第７図は第６図の要部断面図、第
８図は第７図の■−■線に沿う矢視図、第９図は積層ス
パイラル管を示す全体図、第１０図は第９図のＸ−Ｘ線
に沿う断面図である。
１０・・・積層スパイラル管、
１１．１２・・・ストリップ、
１３・・・芯材、
１４・・・被覆材、
２０・・・スパイラル管製造装置、
２９・・・ガイド管、
３４・・・熱風吹出し装置、
３９・・・管送出ベルト、
５０・・・スパイラル管製造装置、
３４Ａ、３４Ｂ・・・熱風吹出し装置、６０・・・スパ
イラル管製造装置、
６１・・・ガイド管、
６２・・・旋回部材、
７３−・・熱風吹出し装置。
代理人 弁理士 塩 川 修 治
第５図（Ａ）
第５図（Ｂ）
第６図
第８図
第９図
第１０図Fig. 1 is a plan view schematically showing an example of a spiral pipe manufacturing apparatus used in carrying out the present invention, Fig. 2 is a front view showing the spiral pipe manufacturing apparatus, and Fig. 3 is a line taken along the line ■-■ in Fig. 1. 4 is a view along the line IV-IV in FIG. 1, FIGS. 5A to 5C are schematic diagrams showing other examples of the spiral pipe manufacturing apparatus, The figure is a perspective view showing still another example of the spiral tube manufacturing device, FIG. 7 is a sectional view of the main part of FIG. 6, FIG. 8 is a view taken along the line ■-■ in FIG. 7, and FIG. 9 10 is an overall view showing the laminated spiral tube, and FIG. 10 is a sectional view taken along the line XX in FIG. 9. DESCRIPTION OF SYMBOLS 10... Laminated spiral tube, 11. 12... Strip, 13... Core material, 14... Covering material, 20... Spiral tube manufacturing device, 29... Guide tube, 34... Hot air blowing device, 39... Pipe delivery belt, 50... Spiral tube manufacturing device, 34A, 34B... Hot air blowing device, 60... Spiral tube manufacturing device, 61... Guide tube, 62... - Swivel member, 73--Hot air blowing device. Agent Patent Attorney Osamu Shiokawa Figure 5 (A) Figure 5 (B) Figure 6 Figure 8 Figure 9 Figure 10
Claims (3)
り被覆したストリップを用意し、複数の上記ストリップ
をスパイラル状に巻き回し、内層側ストリップのエッジ
継ぎ合わせ部を外層側ストリップにて覆うように互いに
一部積層し、かつ接着することにて構成される積層スパ
イラル管の製造方法であって、製造対象管の管軸と同軸
をなすガイド体を該製造対象管の内壁が沿うように配置
し、複数の前記ストリップを前記が一部積層状態となる
ように、かつ該ガイド体の軸に対して一定の入射角度で
該ガイド体まわりに送り込み、それらストリップの積層
部を互いに熱融着するとともにスパイラル成形する積層
スパイラル管の製造方法。(1) Prepare a strip in which a core material made of a steel plate is covered with a covering material made of synthetic resin, and wind a plurality of the above strips in a spiral shape so that the edge joints of the inner layer strips are covered with the outer layer strips. A method for manufacturing a laminated spiral pipe consisting of partially laminating and gluing together a plurality of spiral pipes, the method comprising arranging a guide body coaxial with the tube axis of the pipe to be manufactured so that the inner wall of the pipe to be manufactured runs along the guide body. Then, the plurality of strips are fed around the guide body so that the strips are partially laminated and at a constant angle of incidence with respect to the axis of the guide body, and the laminated portions of the strips are heat-sealed to each other. A method for manufacturing a laminated spiral tube that is spirally formed with the
ル状に巻き付け、該ガイド体まわりにてスパイラル成形
されるストリップを該ガイド体と該管送出ベルトとの間
に挿入し、該管送出ベルトの駆動により、該ストリップ
にて成形済のスパイラル管を該ガイド体に沿って順次送
出する請求項１記載の積層スパイラル管の製造方法。(2) Wrap a tube delivery belt around the outer periphery of the guide body in a spiral shape, insert a strip spirally formed around the guide body between the guide body and the tube delivery belt; 2. The method for manufacturing a laminated spiral tube according to claim 1, wherein the spiral tube formed by the strip is sequentially sent out along the guide body by driving.
かつ横移動できる旋回部材を配置し、該旋回部材上に複
数のストリップ供給装置を設け、該旋回部材を回転かつ
横移動しながら、前記複数のストリップを各ストリップ
供給装置から該ガイド体まわりに送り込んでスパイラル
成形し、該スパイラル成形後に該ガイド体を縮径し、該
ガイド体まわりのスパイラル管を該ガイド体の外方に移
送する請求項１記載の積層スパイラル管の製造方法。(3) A rotating member that can rotate and move laterally around the guide body is arranged, a plurality of strip supply devices are provided on the rotating member, and while rotating and laterally moving the rotating member, The plurality of strips are fed from each strip supply device around the guide body to form a spiral, and after the spiral forming, the guide body is reduced in diameter, and the spiral tube around the guide body is transferred to the outside of the guide body. A method for manufacturing a laminated spiral tube according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2123127A JPH0419121A (en) | 1990-05-15 | 1990-05-15 | Manufacture of laminated spiral pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2123127A JPH0419121A (en) | 1990-05-15 | 1990-05-15 | Manufacture of laminated spiral pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0419121A true JPH0419121A (en) | 1992-01-23 |
Family
ID=14852851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2123127A Pending JPH0419121A (en) | 1990-05-15 | 1990-05-15 | Manufacture of laminated spiral pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0419121A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6826874B2 (en) | 1999-06-30 | 2004-12-07 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| US7225588B2 (en) | 2003-07-08 | 2007-06-05 | Nippon Steel Corporation | Damping brace and structure |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US9447596B2 (en) | 2012-08-03 | 2016-09-20 | Nippon Steel & Sumikin Engineering Co., Ltd. | Axially yielding elasto-plastic hysteresis brace and vibration-damping steel-frame structure |
| US9631391B2 (en) | 2013-04-08 | 2017-04-25 | Nippon Steel & Sumikin Engineering Co., Ltd | Buckling restrained brace and load-bearing structure provided with the same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236172A (en) * | 1975-09-15 | 1977-03-19 | Midwestern Mfg Co | Machine for covering pipes with tape * having improved means of controlling tension of tape |
| JPS5577529A (en) * | 1978-12-05 | 1980-06-11 | Sekisui Chem Co Ltd | Method of producing complex pipe |
| JPS55101422A (en) * | 1979-01-30 | 1980-08-02 | Sekisui Chem Co Ltd | Method and apparatus for continuous preparation of specially shaped tube |
| JPS5675835A (en) * | 1979-11-26 | 1981-06-23 | Mitsuya Tekko Kk | Synthetic resin cylinder with spiral band core and its preparation |
| JPS5829216A (en) * | 1981-08-14 | 1983-02-21 | Nippon Technical Co Ltd | Push-button type tuner |
| JPS58205752A (en) * | 1982-05-26 | 1983-11-30 | アイ・テイ・エス・エス・ア−ル・エル | Method and device for producing reinforced rubber or plastic tube |
| JPS62169618A (en) * | 1986-01-21 | 1987-07-25 | Showa Prod Kk | Preparing composite cylindrical material |
-
1990
- 1990-05-15 JP JP2123127A patent/JPH0419121A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5236172A (en) * | 1975-09-15 | 1977-03-19 | Midwestern Mfg Co | Machine for covering pipes with tape * having improved means of controlling tension of tape |
| JPS5577529A (en) * | 1978-12-05 | 1980-06-11 | Sekisui Chem Co Ltd | Method of producing complex pipe |
| JPS55101422A (en) * | 1979-01-30 | 1980-08-02 | Sekisui Chem Co Ltd | Method and apparatus for continuous preparation of specially shaped tube |
| JPS5675835A (en) * | 1979-11-26 | 1981-06-23 | Mitsuya Tekko Kk | Synthetic resin cylinder with spiral band core and its preparation |
| JPS5829216A (en) * | 1981-08-14 | 1983-02-21 | Nippon Technical Co Ltd | Push-button type tuner |
| JPS58205752A (en) * | 1982-05-26 | 1983-11-30 | アイ・テイ・エス・エス・ア−ル・エル | Method and device for producing reinforced rubber or plastic tube |
| JPS62169618A (en) * | 1986-01-21 | 1987-07-25 | Showa Prod Kk | Preparing composite cylindrical material |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6826874B2 (en) | 1999-06-30 | 2004-12-07 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7231743B2 (en) | 1999-06-30 | 2007-06-19 | Nippon Steel Corporation | Buckling restrained braces and damping steel structures |
| US7174680B2 (en) | 2002-05-29 | 2007-02-13 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7284358B2 (en) | 2002-05-29 | 2007-10-23 | Sme Steel Contractors, Inc. | Methods of manufacturing bearing brace apparatus |
| US7305799B2 (en) | 2002-05-29 | 2007-12-11 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7716882B2 (en) | 2002-05-29 | 2010-05-18 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7762026B2 (en) | 2002-05-29 | 2010-07-27 | Sme Steel Contractors, Inc. | Bearing brace apparatus |
| US7225588B2 (en) | 2003-07-08 | 2007-06-05 | Nippon Steel Corporation | Damping brace and structure |
| US7185462B1 (en) | 2003-07-25 | 2007-03-06 | Sme Steel Contractors, Inc. | Double core brace |
| US9447596B2 (en) | 2012-08-03 | 2016-09-20 | Nippon Steel & Sumikin Engineering Co., Ltd. | Axially yielding elasto-plastic hysteresis brace and vibration-damping steel-frame structure |
| US9631391B2 (en) | 2013-04-08 | 2017-04-25 | Nippon Steel & Sumikin Engineering Co., Ltd | Buckling restrained brace and load-bearing structure provided with the same |
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