JPS5944213B2 - Manufacturing method of flexible tube - Google Patents
Manufacturing method of flexible tubeInfo
- Publication number
- JPS5944213B2 JPS5944213B2 JP52099789A JP9978977A JPS5944213B2 JP S5944213 B2 JPS5944213 B2 JP S5944213B2 JP 52099789 A JP52099789 A JP 52099789A JP 9978977 A JP9978977 A JP 9978977A JP S5944213 B2 JPS5944213 B2 JP S5944213B2
- Authority
- JP
- Japan
- Prior art keywords
- bellows tube
- metal plate
- flexible tube
- tube
- manufacturing
- 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.)
- Expired
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000002184 metal Substances 0.000 claims description 14
- 229910052751 metal Inorganic materials 0.000 claims description 14
- 229920003002 synthetic resin Polymers 0.000 claims description 8
- 239000000057 synthetic resin Substances 0.000 claims description 8
- 238000000071 blow moulding Methods 0.000 claims 1
- 238000005452 bending Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
-
- 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
- B29L2023/00—Tubular articles
- B29L2023/18—Pleated or corrugated hoses
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Description
【発明の詳細な説明】
本発明は、合成樹脂パイプ’１をブロー成形して蛇腹筒
部２を有する蛇腹管３を形成し、蛇腹筒部２の軸方向断
面と略同形状に曲成した金属板帯４を蛇腹筒部２外面に
沿つて装着することを特徴とする自在管の製造方法に係
り、その目的とするところは任意角度に曲げた状態に形
状を保持できる自在管を簡単に製造できる自在管の製造
方法を提供するにある。DETAILED DESCRIPTION OF THE INVENTION In the present invention, a synthetic resin pipe '1 is blow-molded to form a bellows tube 3 having a bellows tube section 2, and the bellows tube 3 is bent into approximately the same shape as the axial cross section of the bellows tube section 2. This method of manufacturing a flexible tube is characterized by attaching a metal plate band 4 along the outer surface of a bellows tube 2, and its purpose is to easily produce a flexible tube that can maintain its shape when bent at any angle. The purpose of the present invention is to provide a method for manufacturing a flexible tube that can be manufactured.
従来の合成樹脂製自在エルボのように蛇腹筒部を形成し
て屈曲自在とし、任意角度に曲げて竪樋などを連結する
自在管にあつては、合成樹脂の弾力性に起因して曲げ角
度が元の直管状態に復元してしまうという欠点があつた
。As with conventional synthetic resin flexible elbows, a bellows cylinder part is formed to allow for free bending, and in the case of flexible pipes that can be bent at arbitrary angles to connect vertical pipes, etc., the bending angle can be adjusted due to the elasticity of the synthetic resin. The disadvantage was that the pipe would return to its original straight state.
本発明は上記の点に鑑みて成されたものであつて、以下
実施例により詳述する。The present invention has been made in view of the above points, and will be explained in detail below using Examples.
先ずポリ塩化ビニル樹脂のような熱可塑性の合成樹脂を
押出し成形機よりパイプ状に押し出し、第１図ａのよう
にこの合成樹脂パイプ１すなわちパリリンを内周面に蛇
腹形成用凹凸面５を有する二つ割り構造の金型６、６間
に挾み、合成樹脂パイプ１内にエアーを吹き込む。こう
して上下端を切断して周囲に蛇腹筒部２が形成された蛇
腹管３が得られる。一方、金属板帯４は軟鉄や銅合金な
どのような塑性を有し強じんな金属で形成され、蛇腹筒
部２を軸に沿つて切断した断面形状と略等しい形状に曲
折してある。この金属板帯４を第１図ｄからｅのように
蛇腹管３の蛇腹鮪部２外面に嵌め込み、第２図の如き自
在管が完成される。この自在管を例えばエルボとして使
用するにあたつては、第３図のように金属板帯４が伸び
側もしくは縮み側となるように自在管を蛇腹筒部２部分
で曲げ、上下の接続筒部□、８に竪樋９．９を嵌め込ん
で両竪樋９．９を連結するものである。上述のように本
発明は、金属板帯を軸方向に沿つて蛇腹筒部外面に嵌着
してあるので、自在管を蛇腹筒部にて曲げるとこの曲げ
に伴つて曲げられた金属板帯の塑性で合成樹脂の弾性力
に起因する角度の復元が阻止され、自在管を設定した曲
げ角度に保持できるものであり、しかも金属板帯をブロ
ー成形した蛇腹筒部の軸方向断面と略同形状に曲成して
蛇腹筒部外面に装着するものであるから、蛇腹筒部に金
属板帯を嵌込むだけで装着でき金属板帯を蛇腹筒部の凹
凸に沿つて取着できるものであつて、自在管の曲げ状態
を保持する為の金属板帯を簡単に取付けることができる
と共に通常のやや硬い金属板であつても予じめ曲成され
ているので使用できるものである。First, a thermoplastic synthetic resin such as polyvinyl chloride resin is extruded into a pipe shape using an extrusion molding machine, and as shown in FIG. Air is blown into the synthetic resin pipe 1 by sandwiching it between two molds 6, 6 having a split structure. In this way, the bellows tube 3 having the bellows tube portion 2 formed around it is obtained by cutting the upper and lower ends. On the other hand, the metal plate band 4 is made of a plastic and strong metal such as soft iron or copper alloy, and is bent to have a cross-sectional shape substantially equal to the cross-sectional shape of the bellows tube section 2 cut along the axis. This metal plate band 4 is fitted onto the outer surface of the bellows section 2 of the bellows tube 3 as shown in FIGS. 1d to 1e, and the flexible tube as shown in FIG. 2 is completed. When using this flexible tube as an elbow, for example, bend the flexible tube at the 2 parts of the bellows tube part so that the metal plate band 4 is on the extension side or the contraction side as shown in Fig. 3, and then connect the upper and lower connecting tubes. A vertical gutter 9.9 is fitted into parts □ and 8 to connect both vertical gutter 9.9. As described above, in the present invention, the metal plate band is fitted to the outer surface of the bellows tube part along the axial direction, so that when the flexible tube is bent at the bellows tube part, the metal plate band bent along with this bending. The plasticity of the plastic prevents the angle from restoring due to the elastic force of the synthetic resin, allowing the flexible tube to be held at a preset bending angle.Moreover, the cross section in the axial direction is approximately the same as the axial cross section of the bellows tube made of blow-molded metal plate strip. Since it is bent into a shape and attached to the outer surface of the bellows tube, it can be attached by simply fitting the metal plate band into the bellows tube, and the metal plate band can be attached along the unevenness of the bellows tube. Therefore, it is possible to easily attach a metal plate band for maintaining the bending state of the flexible tube, and even an ordinary slightly hard metal plate can be used because it is pre-bent.
第１図ａ、ｂ、ｃ、ｄ、ｅは本発明の工程の概略説明図
、第２図は同上より製造した自在管の斜視図、第３図は
同上の使用状態図であつて、１は合成樹脂パイプ、２は
蛇腹筒部、３は蛇腹管、４は金属板帯である。Figures 1 a, b, c, d, and e are schematic explanatory diagrams of the steps of the present invention, Figure 2 is a perspective view of a flexible tube manufactured from the above, and Figure 3 is a usage state diagram of the same. 2 is a synthetic resin pipe, 2 is a bellows tube, 3 is a bellows tube, and 4 is a metal plate band.
Claims (1)
蛇腹管を形成し、蛇腹筒部の軸方向断面と略同形状に曲
成した金属板帯を蛇腹筒部外面に沿つて装着することを
特徴とする自在管の製造方法。1 Blow molding a synthetic resin pipe to form a bellows tube having a bellows tube section, and attaching a metal plate band bent to approximately the same shape as the axial cross section of the bellows tube section along the outer surface of the bellows tube section. Characteristics of the manufacturing method for flexible tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52099789A JPS5944213B2 (en) | 1977-08-15 | 1977-08-15 | Manufacturing method of flexible tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP52099789A JPS5944213B2 (en) | 1977-08-15 | 1977-08-15 | Manufacturing method of flexible tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5431470A JPS5431470A (en) | 1979-03-08 |
| JPS5944213B2 true JPS5944213B2 (en) | 1984-10-27 |
Family
ID=14256685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP52099789A Expired JPS5944213B2 (en) | 1977-08-15 | 1977-08-15 | Manufacturing method of flexible tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5944213B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5913692A (en) * | 1982-07-15 | 1984-01-24 | Hitachi Chem Co Ltd | Growing method of bi4(ge, si)3o12 single crystal |
| US5169590A (en) * | 1990-11-21 | 1992-12-08 | Automotive Composites Consortium | Resin molding process utilizing a blow molded core |
-
1977
- 1977-08-15 JP JP52099789A patent/JPS5944213B2/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5431470A (en) | 1979-03-08 |
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