JPS5924621A - 被覆用外管を内管に固定する方法 - Google Patents

被覆用外管を内管に固定する方法

Info

Publication number
JPS5924621A
JPS5924621A JP13381382A JP13381382A JPS5924621A JP S5924621 A JPS5924621 A JP S5924621A JP 13381382 A JP13381382 A JP 13381382A JP 13381382 A JP13381382 A JP 13381382A JP S5924621 A JPS5924621 A JP S5924621A
Authority
JP
Japan
Prior art keywords
pipe
tube
inner tube
outer coating
inner 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.)
Granted
Application number
JP13381382A
Other languages
English (en)
Other versions
JPS6315906B2 (ja
Inventor
Makoto Shindo
進藤　真
Yasushi Mikuni
三国　靖
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Showa Denko KK filed Critical Showa Denko KK
Priority to JP13381382A priority Critical patent/JPS5924621A/ja
Publication of JPS5924621A publication Critical patent/JPS5924621A/ja
Publication of JPS6315906B2 publication Critical patent/JPS6315906B2/ja
Granted legal-status Critical Current

Links

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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/26—Lining or sheathing of internal surfaces
    • B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
    • B29C63/346—Fixing the end of the lining
    • 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/18—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using tubular layers or sheathings
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
    • 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
    • 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
    • B29C66/72—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 structure of the material of the parts to be joined
    • B29C66/723—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 structure of the material of the parts to be joined being multi-layered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Insulation (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は、内管を外管に挿入してなる内外管からなる二
重管の製造に際し、両管の容易な離脱を防止するための
両管間の固定方法に関するものである。
最近の住宅用、事務所用等の中高層ビルは随所に防火対
策がなされているが、これらビルの上下方向、水平方向
の各区画室に貫通して３祈水管、排水管に附属する通気
管、配電管、給水管、給排気ダクトは金属製、陶磁器製
の他、取り扱い易さ、耐久性、加工性、消音性等の点か
らポリ塩化ビニール製の管等の合成樹脂製管が用いられ
、その外表面に耐火性の被覆例えばセメント原材料から
なる被覆が施されていることが多い。もともと金属製、
陶磁器製の場合も種々の目的の被覆が施される。
しかし、上記の場合、合成樹脂製内管を例にとつて考え
るとその外周に耐火性の例えば無機質被覆を施しても該
合成樹脂製内管の方が通常前記被覆用の外管よりも熱膨
張率が大きいため、若し外部が火災等で高熱になった場
合、該内管の熱膨張により該外管を破壊することがしば
しば発生するため、両内外管間に所望の間隙を設ける手
段が通常とられている。
この間隙を設ける最も簡単な方法は所望の径を有する内
外両管を夫々別々に製造し、内管を外管に挿入する方法
がとられるが、山内外管の位置関係を固定しておかない
と取扱い上の問題例えば、運搬時とか保存時の離脱容易
性が問題になりその対策として種々の固定方法が提案さ
れている。例えば、内外管の間隙端に発泡性樹脂を注入
して発泡させたり、同間隙端にくさびを打ちこんだり、
間隙部の長さ方向にひもを介在させたりする方法が知ら
れている。
しかし、前記発泡性樹脂の場合は狭い例えば０．３咽程
度の間隙への注入が事実上困難であり、前記くさびの場
合は、内外管の芯を合わせなければならないとか、くさ
びの尖突部の勾配の選択が内外間の間隙の大きさで種々
変ることの煩雑さなどがあり、間隙部の長さ方向にひも
を介在させることは、外管内に内管とひもを同時に挿入
する際に外管の破損を招いたり、ひもの端部の余剰部の
処理とか上記ひもの介在処理が量産的でないなどのため
に好ましい方法とはいえない。
本発明者等は、これら従来の方法では不充分であった内
外管間の固定方法について種々検討した結果、プラスチ
ック、ゴム、鋼等の線状体と接着材料を用いることによ
りきわめて容易に解決しうろことを見出し、本発明を完
成した。
以下、本発明を図面を用いて説明する。
第１図は被覆用外管（１）内にポリ塩化ビニル性内管（
２）を挿入し、且つ内管の両端（２′、２′）を継手管
（３）の受口部（３１の長さに合うようその長さを揃え
て露出させ、該露出部外表面のうち外管（１）に可及的
に近接して鋼線（４）を捲きつけ接着剤（５）をその上
から被覆した状態の縦断面の一部切欠き図を示すもので
ある。
第１図では鋼線は１回巻きであるが、その太さ、被覆用
外管（１）の重さ、内、外管間の間隙の大きさによって
は複数回巻きでもよいが、逆に１回未満でもよい。
接着剤は、塩化ビニール管、線状体としての鋼線の両方
に親和性のあるものが選ばれ、エポキシ樹脂、不飽和ポ
リエステル樹脂、ホットメルト型のエチレン酢酸ビニル
樹脂等が選ばれるが、溶剤としてテトラハイドロフラン
、トルエン等力用いられる場合は塩化ビニル内管の外表
面が一部溶けるため、接着強度は向上する。
これら鋼線等の線状体及び接着剤は内管、外管間の相対
的位置変動を抑制できさえすればよいので必要以上に太
い線状体は不要であり、接着剤は量は少い方がよい。こ
のような考慮により、被覆された継手管（３）に被覆用
外管（１）を把握して被覆された内管（２）を挿入する
ことができ、しかも、前記線状体の鋼線は外管（１）の
被覆材と継手管（３）の突き合わせ部の内側部にほとん
ど埋没し表面には通常、目地材又は目地バンド力を施こ
されるので隙間の形成は何ら障害にならない。
また、被覆用外管（１）は第２図にその縦断面図として
示されるごとく通常把持具（６）により建築躯体（７）
に固定され、その荷重が累積して、下方の管に異常な力
がかからないようにしているが′直管状の継手管（３）
を用いて上下に長く接続した場合前記鋼線（４）などに
よる係止がなければ内管もその全荷重が下方の管にかか
り安全上良くないが、本発明に係る方法による鋼線等の
線状体と合成樹脂製内管との接着により、線状体部分に
おいて内管が外管にぶら下った形になり、その荷重は前
記把持具を伝って建築躯体にかかり、前記問題はなくな
る効果を発揮する。ｔた内外管の離脱防止効果をも果し
ている。なお、上記ぶら下り時の荷重対策のみの場合は
上方の線状体のみで良いが運搬等を考慮すれば上下両方
に巻きつける方が良い。
第３図は、前記接着剤の代りに接着テープ（８）で鋼線
（４）を覆って内管（２）に該鋼線を固定した場合の縦
断面図の１部切り欠き図を、第３図は前記接着剤の代り
に両面接着テープ（９）を予め内管に巻きつけておきそ
の表面に鋼線を巻きつけた場合の縦断面図の一部切り欠
き図をそれぞれ示したものである。
このような実施態様においても前記内外管間の固定、継
手管との接続上の問題はないばかりか、実施が容易であ
るので便利である。
以上、本発明の具体例を図面を用いて説明したが、本発
明の要旨は、被覆用外管内に内管を挿入し、内管の両端
を露出させて固定する方法において、内管の該露出部分
外表面のうち被覆用外管に可及的に近接して線状体を巻
きつけ接着剤で固定する被覆用外管を内管に固定する方
法にある。
【図面の簡単な説明】
第１図は内管と外管からなる二重管の内管表面上に外管
に近接させて鋼線等の線状体を巻きつけ接着剤で覆って
固定した状態の一部切欠きの縦断面図を、第２図は本発
明の方法を実施し、継手管を用いて縦に複数個連結した
場合の縦断面図を、第３図、第４図は第１図における接
着剤の代りに接着テープを用いた場合の縦断面図をそれ
ぞれ示す。

Claims (2)

    【特許請求の範囲】
  1. （１）被覆用外管内に内管を挿入し、内管の両端を露出
    させて固定する方法において、内管の該露出部分外表面
    のうち被覆用外管に可及的に近接して線状体を巻きつけ
    接着剤で固定することを特徴とする被覆用外管を内管に
    固定する方法。
  2. （２）線状体の巻きつけが露出部のいずれか一方である
    特許請求の範囲第１項記載の被覆用外管を内管に固定す
    る方法 −（３）接着剤による固定方法が、線状体巻きつけ後の
    塗布方法、接着剤を塗布した線状体を巻きつける方法、
    ホットメルト型接着剤被覆線状体を巻きつけて後加熱及
    び冷却する方法、線状体を巻きつけて後接着テープで覆
    う方法、両面接着テープを予じめ捲きつけその上に線状
    体を巻きつける方法から選ばれる一つの方法である特許
    請求の範囲第１項もしくは第２項記載の被覆用外管を内
    管に固定する方法
JP13381382A 1982-08-02 1982-08-02 被覆用外管を内管に固定する方法 Granted JPS5924621A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13381382A JPS5924621A (ja) 1982-08-02 1982-08-02 被覆用外管を内管に固定する方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13381382A JPS5924621A (ja) 1982-08-02 1982-08-02 被覆用外管を内管に固定する方法

Publications (2)

Publication Number Publication Date
JPS5924621A true JPS5924621A (ja) 1984-02-08
JPS6315906B2 JPS6315906B2 (ja) 1988-04-06

Family

ID=15113637

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13381382A Granted JPS5924621A (ja) 1982-08-02 1982-08-02 被覆用外管を内管に固定する方法

Country Status (1)

Country Link
JP (1) JPS5924621A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186071A (en) * 1990-03-09 1993-02-16 Maeda Industries, Ltd. Bicycle speed change lever assembly
US5303608A (en) * 1990-03-26 1994-04-19 Maeda Industries, Ltd. Bicycle speed change lever assembly

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093813U (ja) * 1973-12-27 1975-08-07
JPS55165191U (ja) * 1979-05-17 1980-11-27

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5093813U (ja) * 1973-12-27 1975-08-07
JPS55165191U (ja) * 1979-05-17 1980-11-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186071A (en) * 1990-03-09 1993-02-16 Maeda Industries, Ltd. Bicycle speed change lever assembly
US5303608A (en) * 1990-03-26 1994-04-19 Maeda Industries, Ltd. Bicycle speed change lever assembly

Also Published As

Publication number Publication date
JPS6315906B2 (ja) 1988-04-06

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