DE4238697C1 - Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section - Google Patents

Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section

Info

Publication number
DE4238697C1
DE4238697C1 DE19924238697 DE4238697A DE4238697C1 DE 4238697 C1 DE4238697 C1 DE 4238697C1 DE 19924238697 DE19924238697 DE 19924238697 DE 4238697 A DE4238697 A DE 4238697A DE 4238697 C1 DE4238697 C1 DE 4238697C1
Authority
DE
Germany
Prior art keywords
rib
coupling
section
fluid line
cut
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 - Fee Related
Application number
DE19924238697
Other languages
German (de)
Inventor
Ralf Hohmann
Janos Kertesz
Bernd Keinhens
Ralf Spors
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.)
Norma Germany GmbH
Original Assignee
Rasmussen GmbH
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 Rasmussen GmbH filed Critical Rasmussen GmbH
Priority to DE19924238697 priority Critical patent/DE4238697C1/en
Application granted granted Critical
Publication of DE4238697C1 publication Critical patent/DE4238697C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/04Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/12Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/12Rigid pipes of plastics with or without reinforcement
    • F16L9/127Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The pipe has several circumferential solid ribs (2) spread out over its length. The pipe is made in a continuous process by a corrugator or by an injection moulding process. Sections of the desired length are cut off from the pipe and have a rib at least at one end. This section is then used in a fluid pipe coupling so that the rib acts as a retaining rib to engage with a rear cut section in the coupling. ADVANTAGE - The ribbed pipe can be made and sold by the metre and used as required.

Description

Die Erfindung bezieht sich auf die Verwendung einer ge­ rippten Fluidleitung aus thermoplastischem Kunststoff, die eine Vielzahl über ihre Länge verteilter, umlaufen­ der, massiver Rippen aufweist.The invention relates to the use of a ge ripped fluid line from thermoplastic, which circulate a multitude distributed over their length which has massive ribs.

Bei einer bekannten Fluidleitung (US-Patentschrift 4 601 497) wird in der Nähe des einen Endes oder beider Enden eine Halterippe durch axiales Stauchen eines zy­ lindrischen Grundkörpers in einem entsprechenden Form­ werkzeug hergestellt. Die Herstellung einer solchen Fluidleitung durch Stauchen ist aufwendig. Darüber hin­ aus hat eine solche Fluidleitung den Nachteil, daß sich die Halterippe aufgrund einer gewissen Eigenelastizität des Materials, sei es Kunststoff oder Metall, oder, im Fall der Ausbildung der Fluidleitung aus thermoplasti­ schem Kunststoff, auch bei thermischer Belastung zumin­ dest teilweise wieder zurückverformt. Wollte man die Fluidleitung im Spritzgießverfahren herstellen, würde man für die unterschiedlichen Fluidleitungslängen ent­ sprechend unterschiedliche Formwerkzeuge benötigen. In a known fluid line (U.S. Patent 4 601 497) is near one end or both Ends a retaining rib by axially compressing a zy lindrian body in a corresponding shape tool manufactured. The making of such Fluid conduction by upsetting is complex. Beyond that Such a fluid line has the disadvantage that the holding rib due to a certain inherent elasticity of the material, be it plastic or metal, or, in Case of forming the fluid line from thermoplastic chemical plastic, even under thermal stress at least partially reshaped. Did you want that Would produce fluid line by injection molding one for the different fluid line lengths need different molds.  

Fluidleitungen der eingangs genannten Art sind aus der DE 36 22 543 A1 oder dem DE-GM 17 84 761 bekannt. Bei der Fluidleitung nach DE 36 22 543 A1 dienen im Quer­ schnitt abgestufte Rippen zur Erhöhung der Schlag­ festigkeit der Fluidleitung. Bei der Fluidleitung nach dem DE-GM 17 84 761 haben die Rippen eine kontinuierli­ che Sinusform. Sie dienen zur Querschnittsversteifung der Fluidleitung und zur Verbesserung der Biegsamkeit zwischen den Rippen. Bei der Fluidleitung nach der US-PS 26 22 623 sind zwischen Wellungen der Fluidleitungs­ wand massive Rippen und glatte Abschnitte zur Anbrin­ gung von Klemmen, Schellen und dergleichen vorgesehen.Fluid lines of the type mentioned are from the DE 36 22 543 A1 or DE-GM 17 84 761 known. At the fluid line according to DE 36 22 543 A1 are used transversely cut graduated ribs to increase the blow strength of the fluid line. With the fluid line after the DE-GM 17 84 761 the ribs have a continuous che sinus shape. They serve to reinforce the cross-section the fluid line and to improve flexibility between the ribs. With the fluid line after the US-PS 26 22 623 are between corrugations of the fluid line twisted massive ribs and smooth sections to the Anbrin supply of clamps, clamps and the like is provided.

Der Erfindung liegt die Aufgabe zugrunde, eine vorteil­ hafte Verwendung einer Fluidleitung der eingangs genann­ ten Art anzugeben, die auf einfache Weise herstellbar und formbeständig ist.The invention has for its object an advantage hafte use of a fluid line of the beginning to specify the type that can be produced in a simple manner and is dimensionally stable.

Erfindungsgemäß wird eine gerippte Fluidleitung aus thermoplastischem Kunststoff, die eine Vielzahl über ihre Länge verteilter, umlaufender, massiver Rippen aufweist, in Form eines Abschnitts oder der gesamten Länge der Fluidleitung in Verbindung mit einer Fluid­ leitungskupplung, wobei eine der Rippen als Halterippe ausgebildet ist und mit einer Hinterschneidung in der Kupplung in Eingriff kommt, verwendet.According to the invention, a ribbed fluid line is made thermoplastic that a variety over their length of distributed, circumferential, massive ribs has, in the form of a section or the whole Length of the fluid line in connection with a fluid line coupling, one of the ribs as a holding rib is trained and with an undercut in the Coupling is used.

Eine solche Fluidleitung kann in großer Länge, als so­ genannte Meterware, in einem kontinuierlichen Verfahren mittels eines Corrugators hergestellt werden. Alterna­ tiv können die Rippen in einem kontinuierlichen Verfah­ ren an einem ebenfalls beliebig langen zylindrischen Grundkörper angeformt werden. Danach kann dann ein Fluidleitungsabschnitt in der gewünschten Länge zugeschnitten oder die gesamte Fluidleitung, wenn sie von vornherein die gewünschte Länge aufweisen sollte, auf einfache Weise mit der Fluidleitungskupplung in Ein­ griff gebracht werden.Such a fluid line can be of great length, as so in a continuous process be produced by means of a corrugator. Alterna tiv the ribs in a continuous process on an equally long cylindrical one Base body are molded. Then one can Fluid line section cut to the desired length or the entire fluid line if from should have the desired length in advance  simple way with the fluid line coupling in one be brought under control.

Die Erfindung wird nachstehend anhand der Zeichnung von Ausführungsbeispielen näher beschrieben. Es zeigen:The invention is described below with reference to the drawing of Embodiments described in more detail. Show it:

Fig. 1 eine Seitenansicht, teilweise im Längsschnitt, einer erfindungsgemäßen Fluidleitung, Fig. 1 is a side view, partly in longitudinal section, of a fluid line according to the invention,

Fig. 2 den Querschnitt II-II der Fluidleitung nach Fig. 1 und die Fig. 2 shows the cross section II-II of the fluid line of FIG. 1 and the

Fig. 3 bis 9 Ausschnitte der Fluidleitung mit verschie­ denen Rippenformen im Querschnitt. Fig. 3 to 9 sections of the fluid line with various rib shapes in cross section.

Die Fluidleitung nach den Fig. 1 und 2 besteht aus ei­ nem zylindrischen Grundkörper 1 mit einer Vielzahl über ihre Länge in gleichen Abständen verteilter umlaufender massiver Rippen 2 aus thermoplastischem Kunststoff. Diese Fluidleitung wird in einem kontinuierlichen Ver­ fahren mittels eines Corrugators hergestellt. Alterna­ tiv können die Rippen 2 auch in einem kontinuierlichen Verfahren, z. B. im Spritzgießverfahren, nachträglich an dem zylindrischen Grundkörper 1 angeformt sein. The fluid line according to FIGS . 1 and 2 consists of egg nem cylindrical base body 1 with a plurality of circumferential solid ribs 2 made of thermoplastic material distributed at equal intervals along its length. This fluid line is produced in a continuous process using a corrugator. Alternatively, the ribs 2 can also be used in a continuous process, e.g. B. in the injection molding process, subsequently molded onto the cylindrical base body 1 .

Von dieser Fluidleitung können Abschnitte in der ge­ wünschten Länge mit einer Rippe an wenigstens einem der beiden Enden des Abschnitts abgeschnitten und in Ver­ bindung mit einer Fluidleitungskupplung, bei der eine der Rippen 2 als Halterippe mit einer Hinterschneidung in der Kupplung in Eingriff kommt, verwendet werden. Fluidleitungskupplungen, für die diese Fluidleitung geeignet ist, sind beispielsweise in der US-Patent­ schrift 4 601 497 oder der (einen älteren Zeitrang auf­ weisenden) deutschen Patentanmeldung 41 39 124 darge­ stellt.From this fluid line sections in the desired length can be cut off with a rib on at least one of the two ends of the section and used in conjunction with a fluid line coupling in which one of the ribs 2 as a holding rib engages with an undercut in the coupling . Fluid line couplings for which this fluid line is suitable are, for example, in US Pat. No. 4,601,497 or the (an older seniority pointing) German patent application 41 39 124 Darge.

Die Rippen 2 können alternativ eine oder mehrere der in den Fig. 3 bis 9 dargestellten Querschnittsformen auf­ weisen, d. h. gemäß Fig. 3 mit einer zylindrischen Stirnfläche, einer radialen Flanke und einer schrägen Flanke, gemäß Fig. 4 mit einer abgerundete Stirnfläche und zwei gegensinnig unter gleichen Winkeln geneigten Flanken, gemäß Fig. 5 mit etwa rechteckigem Quer­ schnitt, gemäß Fig. 6 mit etwa trapezförmigem Quer­ schnitt, gemäß Fig. 7 mit einem im Querschnitt recht­ eckigen Fußteil und einem trapezförmigen radial außen liegenden Teil, gemäß Fig. 8 mit einem Querschnitt in Form etwa eines rechtwinkligen Dreiecks und gemäß Fig. 9 mit etwa halbkreisförmigem Querschnitt.The ribs 2 can alternatively have one or more of the cross-sectional shapes shown in FIGS. 3 to 9, ie according to FIG. 3 with a cylindrical end face, a radial flank and an oblique flank, according to FIG. 4 with a rounded end face and two in opposite directions Flanks inclined at the same angle, according to FIG. 5 with an approximately rectangular cross-section, according to FIG. 6 with an approximately trapezoidal cross-section, according to FIG. 7 with a foot part with a rectangular cross section and a trapezoidal radially outer part, according to FIG. 8 with a cross section in the form of a right triangle and according to FIG. 9 with an approximately semicircular cross section.

Das Material der Fluidleitung und auch die Fluidleitung selbst ist biegsam, so daß sie auf einfache Weise gebo­ gen werden kann. Vorzugsweise ist das Material ein Po­ lyamid.The material of the fluid line and also the fluid line itself is flexible, so that it is easily born can be gen. The material is preferably a bottom lyamide.

Claims (3)

1. Verwendung einer gerippten Fluidleitung aus thermo­ plastischem Kunststoff, die eine Vielzahl über ihre Länge verteilter, umlaufender, massiver Rippen (2) aufweist, in Form eines Abschnitts oder der gesam­ ten Länge der Fluidleitung in Verbindung mit einer Fluidleitungskupplung, wobei eine der Rippen (2) als Halterippe ausgebildet ist und mit einer Hin­ terschneidung in der Kupplung in Eingriff kommt. 1. Use of a ribbed fluid line made of thermoplastic, which has a plurality of circumferential, solid ribs ( 2 ) distributed over its length, in the form of a section or the entire length of the fluid line in connection with a fluid line coupling, one of the ribs ( 2 ) is designed as a retaining rib and comes with an undercut in the coupling. 2. Verwendung der Fluidleitung nach Anspruch 1, mit der Maßgabe, daß sie in einem kontinuierlichen Verfahren mittels eines Corrugators hergestellt ist.2. Use of the fluid line according to claim 1, with the proviso that that they're in a continuous process is produced by means of a corrugator. 3. Verwendung der Fluidleitung nach Anspruch 1, mit der Maßgabe, daß die Rippen (2) in einem kontinuierlichen Verfahren an einem zylindrischen Grundkörper (1) angeformt sind.3. Use of the fluid line according to claim 1, with the proviso that the ribs ( 2 ) are integrally formed on a cylindrical base body ( 1 ) in a continuous process.
DE19924238697 1992-11-17 1992-11-17 Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section Expired - Fee Related DE4238697C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19924238697 DE4238697C1 (en) 1992-11-17 1992-11-17 Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19924238697 DE4238697C1 (en) 1992-11-17 1992-11-17 Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section

Publications (1)

Publication Number Publication Date
DE4238697C1 true DE4238697C1 (en) 1994-05-05

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DE19924238697 Expired - Fee Related DE4238697C1 (en) 1992-11-17 1992-11-17 Application for ribbed thermoplastics fluid pipe - is cut in sections with rib of each section fitting and engaging in fluid pipe coupling, rib acting as retainer engaging coupling cut section

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT1846U1 (en) * 1996-03-20 1997-12-29 Geberit Technik Ag LENGTHABLE TUBE, IN PARTICULAR PROTECTIVE TUBE FOR A PIPELINE

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622623A (en) * 1938-11-25 1952-12-23 Prod Du Lynx Jaune Flexible, extensible, and compressible tube with regular passage section
DE1784761A1 (en) * 1968-09-14 1971-11-18 Kloeckner Humboldt Deutz Ag Method and device for the production of molded articles by compression
US4601497A (en) * 1980-10-29 1986-07-22 Proprietary Technology Swivelable quick connector assembly
DE3622543A1 (en) * 1985-07-30 1987-02-12 Uponor Ab PLASTIC PIPE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2622623A (en) * 1938-11-25 1952-12-23 Prod Du Lynx Jaune Flexible, extensible, and compressible tube with regular passage section
DE1784761A1 (en) * 1968-09-14 1971-11-18 Kloeckner Humboldt Deutz Ag Method and device for the production of molded articles by compression
US4601497A (en) * 1980-10-29 1986-07-22 Proprietary Technology Swivelable quick connector assembly
DE3622543A1 (en) * 1985-07-30 1987-02-12 Uponor Ab PLASTIC PIPE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT1846U1 (en) * 1996-03-20 1997-12-29 Geberit Technik Ag LENGTHABLE TUBE, IN PARTICULAR PROTECTIVE TUBE FOR A PIPELINE

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Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee