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DE3043174A1 - Helically wound plastics hose - has lapped foil joints and longitudinal stretch in foil other than at joints - Google Patents

Helically wound plastics hose - has lapped foil joints and longitudinal stretch in foil other than at joints

Info

Publication number
DE3043174A1
DE3043174A1 DE19803043174 DE3043174A DE3043174A1 DE 3043174 A1 DE3043174 A1 DE 3043174A1 DE 19803043174 DE19803043174 DE 19803043174 DE 3043174 A DE3043174 A DE 3043174A DE 3043174 A1 DE3043174 A1 DE 3043174A1
Authority
DE
Germany
Prior art keywords
foil
stretched
plastic film
seam
film web
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.)
Withdrawn
Application number
DE19803043174
Other languages
German (de)
Inventor
Hans-Georg 5628 Heiligenhaus Schauenburg
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19803043174 priority Critical patent/DE3043174A1/en
Publication of DE3043174A1 publication Critical patent/DE3043174A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/581—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material
    • B29C53/582—Winding and joining, e.g. winding spirally helically using sheets or strips consisting principally of plastics material comprising reinforcements, e.g. wires, threads
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
    • 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
    • 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
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4329—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms the joint lines being transversal but non-orthogonal with respect to the axis of said tubular articles, i.e. being oblique
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C—MAKING WOUND ARTICLES, e.g. WOUND TUBES, OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31C3/00—Making tubes or pipes by feeding obliquely to the winding mandrel centre line
    • B31C3/04—Seam processing
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
    • B29C65/5035—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being in thread form, i.e. in the form of a single filament, e.g. in the form of a single coated filament
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B29K2105/103—Oriented helically
    • 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
    • B29L2023/005—Hoses, i.e. flexible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

A flexible tube consisting of a stretch plastics foil and peripheral or circumferential reinforcement has the plastics foil laid with an overlapping helical seam, sealed by hot-pressure and also acting as reinforcement. The plastic foil (1), in the zones (4) not covered by the seam, is stretched substantially in the longitudinal direction of the tube or hose itself. More specifically, this stretched zone (4) has a transition zone (5) to the overlapping zone (3) where the degree of stretch is reduced. In the preferred prodn. method, where helical winding is used to form the tube from the foil and its reinforcement, the stretching is carried out after the lapped seam (3) has been formed.

Description

Die Erfindung bezieht sich gattungsgemäß auf einen Schlauch ausThe invention relates generically to a hose

einer verstreckten Kunststoff-Folienbahn und umlaufender Bewehrung, wobei die Kunststoff-Folienbahn mit überlappungsnabt schraubenwendelförmig gewickelt, die Uberlappungsnaht die ebenfalls wendelförmige Bewehrung bildet und die überlappungsnaht unter Anwendung von Druck und Wärme verschweißt ist. Die Kunststoff-Folienbahn kann bei solchen Schläuchen aus allen üblichen verstreckbaren Kunststoffen bestehen. Di Bewehrung besteht aus einen Metalldraht oder aus einem Kunststoi -draht, d. h. aus drahtförmigen Profilsträngen hoher Festigkeit, die in die Überlappungsnaht eingelegt sind, oder 2U5 einer zuge cd eine Bewehrung bildende Profilierung der Kunststoff-Folienbahn 1 Bereich der Überlappungsnaht.a stretched plastic film strip and all-round reinforcement, wherein the plastic film web is wound in a helical manner with overlapping nabs, the overlap seam, which also forms helical reinforcement, and the overlap seam is welded using pressure and heat. The plastic film web can in the case of such hoses, consist of all conventional stretchable plastics. The reinforcement consists of a metal wire or a synthetic wire, i.e. H. made of wire-shaped profile strands of high strength, which are inserted into the overlap seam are, or 2U5 a supplied cd profiling of the plastic film web that forms reinforcement 1 area of the overlap seam.

Bei den (aus der Praxis) bekannten Schläuchen der beschriebenen Gattung ist die Kunststoff-Folienbahn in ihrer Längsrichtung und damit im Schlauch entsprechend dem Wendelverlauf, d. h. hauptsäcnlich in Umfangsrichtung, verstreckt. Die Verstreckung ist an der Kunststoff-Folienbahn durchgeführt worden, bevor die Kunststoff-Folienbahn in der beschriebenen Weise mit Überlappungchaht gewthkelt und im Bereich der Überlappungsnaht verschweißt wurde.In the hoses of the type described known (from practice) is the plastic film web in its longitudinal direction and thus in the tube accordingly the helix course, d. H. mainly in the circumferential direction, drawn. The stretching has been carried out on the plastic film web before the plastic film web knitted in the manner described with the overlap seam and in the area of the overlap seam was welded.

Eine Verstreckung bewirkt bekanntlich eine Erhöhung der ZugfestIgkeit in Verstreckungsrichtung. In der dazu orthogonalen Richtung ist die Festigkeit nicht erhöht und, jc nach eingesetztetn verstreckbaren Kunststoff, häufig sogar reduziert. im Bereich der Überlappungsnaht ist die bei den bekannten Schläuchen durch den Schweißvorgang auIgehoben. Im Ubergangsbereich zwischen der Schweißnaht und dem verstreckten Bereich wird häufig eine Schwächung des Materials beobachtet. Im übrigen bringt diese in Wendelrichtung und damit praktisch in Umfangsrichtung verlaufende Verstreckung der Kunststoff-Folienbahn für die Gestaltfestigkeit des Schlauches insgesamt wenig, da in Umfangsrichtung insoweit die ohnehin vorhandene Bewehrung verstärkend wirkt. Die nicht erhöhte oder sogar reduzierte Festigkeit in Längsrichtung des Schlauches stört.It is known that stretching causes an increase in tensile strength in the direction of stretching. The strength is not in the orthogonal direction increased and, depending on the stretchable plastic used, often even reduced. in the area of the overlap seam is that of the known hoses through the Welding process canceled. In the transition area between the weld seam and the stretched area a weakening of the material is often observed. Incidentally, this brings in Helical direction and thus practically extending in the circumferential direction of the Plastic film web for the structural strength of the hose overall little, because the reinforcement that is already present has a reinforcing effect in the circumferential direction. The not increased or even reduced strength in the longitudinal direction of the hose disturbs.

Demgegenüber liegt der Erfindung die Aufgabe zugrunde, einen gattunggemäßen Schlauch zu schaffen, bei dem die Kunststoff-Folienbahn in Längsrichtung de Schlauches verstreckt ist, und zwar ohne Schwächung der Festigkeit im Übergangsbereich zur verschweißten Überlappungsnaht.In contrast, the invention is based on the object of a generic To create a hose, in which the plastic film web in the longitudinal direction of the hose is stretched, without weakening the strength in the transition area to welded overlap seam.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß die Kunststoff-Folienbahn in dem wendelförmigen Bereich zwischen der überlappungsnaht im wesentlichen in Schlauchlängsrichtung verstreckt ist. Eine bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, d der verstreckte Bereich der Kunststoff-Folienbajin über einen Ubergangsbereich mit gegenüber dem verstreckten Bereich reduziertem Verstreckungsgrad in die praktisch unverstreckte Überlappungsnaht überführt ist. Letzteres läßt sich auf einfache Weise dadurch erreichen, daß der Schlauch aus einer unverstreckten Kunst stoff-Folienbahn gewickelt und nach dem Wickeln und Verschweißen in Längsrichtung gedehnt sowie dadurch der Bereich zwischen der tToerlappungsnaht verstreckt wird. Je nach Auslegung der Bewehrung federt diese nach der Verstreckung elastisch zurück oder erfährt sie bei der Verstreckung eine bleibende Verformung, so daß gleichzeitig mit der Verstreckung auch eine Längung des Schlauches erreicht wird. Im Rahmen der Erfindung liegt eine Ausführungsform, bei der die Kunststoff-Folienbahn vor dem Wickeln des Schlauches in ihrer Kunststoff-Folienbahnlängsrichtung bereits verstreckt iE so daß nach der Lehre der Erfindung eine zweite Verstreckung mit zueinander mehr oder weniger orthogonaler Verstreckungsrichtung erreicht wird und die Kunststoff-Folienbahn festigkeitsmäßig sowohl in Umfangsrichtung als @neh in Längsrichtung des Schlauches verbessert ist. Jedenfalls zeichnet sich ein erfindungsgemäßer Schla@@ch bei vorgegebener Festigkeit durch wesentlich reduzierten Materialeinsatz aus.To solve this problem, the invention teaches that the plastic film web in the helical area between the overlap seam essentially in the longitudinal direction of the hose is stretched. A preferred embodiment of the invention is characterized in that d the stretched area of the plastic film bayin over a transition area with a reduced degree of stretching compared to the stretched area in the practical undrawn overlap seam is transferred. The latter can be done in a simple way achieve in that the tube made of an unstretched plastic film web wound and stretched after winding and welding in the longitudinal direction and thereby the area between the lap seam is stretched. Depending on the design of the Reinforcement springs back elastically after stretching or experiences it the stretching a permanent deformation, so that simultaneously with the stretching an elongation of the hose is also achieved will. Within the scope of the invention is an embodiment in which the plastic film web before winding the Hose already stretched in its longitudinal direction of plastic film web iE so that according to the teaching of the invention, a second stretching with each other more or less orthogonal stretching direction is achieved and the plastic film web in terms of strength both in the circumferential direction and in the longitudinal direction of the hose is improved. In any case, a Schla @@ ch according to the invention is characterized by a predetermined one Strength through significantly reduced material usage.

Im -olgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert.In the following the invention is based on only one embodiment Illustrative drawing explained in more detail.

Es Neigen in schematischer Darstellung Fig. 1 eine Draufsicht auf einen Ausschnitt aus einem erfindungsgemäßen Schlauch Fig. 2 den vergrößerten Ausschnitt A aus dem Gegenstand nach Fig. 1 und Fig. 5 ebenfalls in starker Vergrößerung und ausschnittsweise eisen Längsschnitt durch den Gegenstand nach Fig. 1.It inclines in a schematic representation Fig. 1 is a plan view a detail from a hose according to the invention; FIG. 2 shows the enlarged detail A from the object according to FIG. 1 and FIG. 5 also in high magnification and a fragmentary iron longitudinal section through the object according to FIG. 1.

Der in den Figuren dargestellte Schlauch besteht aus einer verstreckten Kunststoff-Folienbahn 1 und einer umlaufenden Bewehrung 2.The hose shown in the figures consists of a stretched one Plastic film web 1 and a circumferential reinforcement 2.

Die Bewehrung 2 ist im Ausführungsbeispiel, aber keinesfalls beschränkend, eine Drahtbewehrung aus einem Metall- oder Kunststof.-dralt. Die Kunststoff-Folienbahn 1 ist mit Überlappungsnaht 5 schraubenwendelförmig gewickelt. In die Uberlappungsnaht 5 ist die ebenfalls wendelförmige Drahtbewehrung 2 eingelegt. Die Überlappungsnaht D wurde wie üblich unter Anwendung von Druck und Wärme verschweißt.The reinforcement 2 is in the exemplary embodiment, but in no way limiting, a wire reinforcement made of a metal or plastic dralt. The plastic film web 1 is wound helically with an overlap seam 5. In the overlap seam 5, the also helical wire reinforcement 2 is inserted. The overlap seam D was made as usual with the application of pressure and heat welded.

In den Fig. 2 und 5 ist angedeutet worden, daß die Kunststoff-Folienbahn 1 in dem wendelförmigen Bereich 4 zwischen der Uberlappungsnaht 5 im wesentlichen in Schlauchlängsrichtung verstreckt ist. Dabei deuten die eingezeichneten dUnnen Striche die durch die Verstreckung erreichte Molekülorientierung an. Insbesondere aus der Fig. 3 entnimmt man, daß der verstreckte Bereich 4 der Kunststoff-Folienbahn 1 über einen übergangsbereich 5 mit gegenüber dem verstreckten Bereich 4 reduziertem Verstreckungsgrad in die praktisch unverstreckte Uberlappungsnaht 3 überführt ist.In Figs. 2 and 5 it has been indicated that the plastic film web 1 in the helical region 4 between the overlap seam 5 essentially is stretched in the longitudinal direction of the hose. The thin ones indicated indicate this Mark the molecular orientation achieved by the stretching. In particular from Fig. 3 it can be seen that the stretched area 4 of the plastic film web 1 via a transition area 5 with a reduced area compared to the stretched area 4 Degree of stretching is transferred into the practically undrawn overlap seam 3.

Eine vergleichende Betrachtung der Fig. 1 bis 5 macht auch deutlich, daß der dargestellte Schlauch aus einer zunächst unverstreckten Kunststoff-Folienbahn gewickelt wurde. Nach dem Wickeln zum Schlauch und nach dem Verschweißen der Überlappungsnaht 7 wurde der Schlauch in Längsrichtung gedehnt. Durch diese Dehnung wurde im Bereich 4 zwischen der Überlappungsnaht 5 die angestrebte Verstrekkung erreicht, die sich allmählich zur Überlappungsnaht g hin abbaut.A comparative consideration of FIGS. 1 to 5 also makes it clear that the tube shown consists of an initially unstretched plastic film web was wrapped. After winding to the hose and after welding the overlap seam 7 the tube was stretched in the longitudinal direction. As a result of this stretching, the area 4 reached the desired stretching between the overlap seam 5, which is gradually degrades towards the overlap seam g.

LeerseiteBlank page

Claims (3)

Schlauch aus einer verstreckten Kunststoff-Folienbahn P a t e n t a n s p r ü c h e : 1. Schlauch aus einer verstreckten Kunststoff-Folienbahn und umlaufender Bewehrung, wobei die Kunststoff-Folienbahn mit Überlappungsnaht schraubenwendelförmig gewickelt, die Überlappungsnaht die ebenfalls schraubenwendelförmige Bewehrung bildet und die Überlappung@naht, unter Anwendung von Druck und Warme verschweist it, d a d u r c h g e k e n n z e i c h n e t, daß die Kunststoff-Folienbahn (1) in dem wendelförmigen Bereich (4) zwischen der Überlappungsnaht (3) im wesentlichen in Schlauchlängs richtung verstreckt ist. Tube made from a stretched plastic film web P a t e n t A n p r ü c h e: 1. Tube made from a stretched plastic film web and circumferential reinforcement, whereby the plastic film web is helically shaped with an overlap seam wound, the overlap seam also forms the helical reinforcement and the overlap @ seam, using pressure and heat welds it, d a d u r c h g e k e n n n e i c h n e t that the plastic film web (1) in the helical Area (4) between the overlap seam (3) essentially in the longitudinal direction of the hose is stretched. @. Schlauch nach Anspruch 1, dadurch gelrennzeichnet, da der ver-.treckte Bereich (4) der Kunststoff-Folienbahn (1) über einen Übergangsbereich (5) mit gegenüber dem verstreckten Bereich (4) reduziertem Verstreckungsgrad in die Überlappungsnaht (3) überführe ist.@. Hose according to claim 1, characterized in that the stretched Area (4) of the plastic film web (1) over a transition area (5) with opposite the stretched area (4) with a reduced degree of stretching into the overlap seam (3) is convicted. 3. Verfahren ZU Herstellen einet Schlauches nach den Ansprüchen 1 und 2, wobei die Kunststoff-Folienbahn sowie die Bewehrung zunächst zum Schlauch gewickelt und die Uberlappungsnaht verschweißt wird, d a d u r c h g e k e n n z e i c h n e t, daß der Schlauch nach dem Wickeln und Verschweißen der Überlappungsnaht ()) verstreckt wird.3. A method for producing a hose according to claims 1 and 2, wherein the plastic film web and the reinforcement initially to the hose wrapped and the lap seam is welded, so that no z e i c h n e t that the hose after winding and welding the overlap seam ()) is stretched.
DE19803043174 1980-11-15 1980-11-15 Helically wound plastics hose - has lapped foil joints and longitudinal stretch in foil other than at joints Withdrawn DE3043174A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19803043174 DE3043174A1 (en) 1980-11-15 1980-11-15 Helically wound plastics hose - has lapped foil joints and longitudinal stretch in foil other than at joints

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803043174 DE3043174A1 (en) 1980-11-15 1980-11-15 Helically wound plastics hose - has lapped foil joints and longitudinal stretch in foil other than at joints

Publications (1)

Publication Number Publication Date
DE3043174A1 true DE3043174A1 (en) 1982-07-01

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018149860A1 (en) * 2017-02-20 2018-08-23 Leonardo S.R.L. Improved cable tube for furniture
DE102019204776A1 (en) * 2019-04-03 2020-10-08 Aft Automotive Gmbh Method for producing a fluid line and corresponding fluid line
CN115355167A (en) * 2021-05-17 2022-11-18 托马斯马格尼特股份有限公司 Plastic parts for hydraulic applications in pumps or valves or valve blocks

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018149860A1 (en) * 2017-02-20 2018-08-23 Leonardo S.R.L. Improved cable tube for furniture
DE102019204776A1 (en) * 2019-04-03 2020-10-08 Aft Automotive Gmbh Method for producing a fluid line and corresponding fluid line
CN115355167A (en) * 2021-05-17 2022-11-18 托马斯马格尼特股份有限公司 Plastic parts for hydraulic applications in pumps or valves or valve blocks

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