EP3661650A1 - Tube assembly - Google Patents
Tube assemblyInfo
- Publication number
- EP3661650A1 EP3661650A1 EP18773080.9A EP18773080A EP3661650A1 EP 3661650 A1 EP3661650 A1 EP 3661650A1 EP 18773080 A EP18773080 A EP 18773080A EP 3661650 A1 EP3661650 A1 EP 3661650A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hoses
- hose
- sheath
- hose assembly
- doing
- 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
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
- B01L3/56—Labware specially adapted for transferring fluids
- B01L3/561—Tubes; Conduits
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- 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
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2200/00—Solutions for specific problems relating to chemical or physical laboratory apparatus
- B01L2200/12—Specific details about manufacturing devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0832—Geometry, shape and general structure cylindrical, tube shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L2300/00—Additional constructional details
- B01L2300/08—Geometry, shape and general structure
- B01L2300/0861—Configuration of multiple channels and/or chambers in a single devices
Definitions
- the present invention relates to a hose assembly for liquid handling devices for use in analysis or medical diagnosis, e.g. in liquid chromatography.
- Hoses used in the above fluid handling devices must have tight tolerances of a few hundredths of a millimeter in diameter to ensure accurate throughput of fluids, and must be chemically resistant to a variety of fluids to withstand buildup of debris and germs wherever possible, to meet hygiene and analytical accuracy requirements, to be robust in order to have a long service life in an automated environment, and to be readily accessible to the installer be processed and installed, and all at a great price. Plastics have proven to be suitable for this purpose.
- Exemplary materials for such hoses are polyetheretherketone (PEEK) or silicone or fluoropolymers, such as tetrafluoroethylene-perfluoropropylene copolymer or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
- PEEK polyetheretherketone
- FEP tetrafluoroethylene-hexafluoropropylene copolymer
- Automated liquid handling devices so-called liquid handling systems, as manufactured and sold by the Applicant, are used purely by way of example on liquid chromatographs for simultaneously introducing different fractions from the chromatograph into different test tubes or microtiter plates arranged in an array and again automatically taken from these.
- the liquid handling For this purpose, the treatment device successively moves a dispensing head with a plurality of outlets for the different fractions over the array of test tubes or microtiter plates, and introduces or withdraws the corresponding fractions into the test tubes.
- individual hoses for the respective fraction have hitherto been guided from the removal point on the liquid chromatograph to the corresponding point on the head of the liquid handling device. These are usually 4 to 8 hoses that must be laid more or less loosely to follow the movement of the dispenser head over the array.
- the invention is therefore based on the object, a hose assembly, which provides an improved arrangement of hoses in a cost effective manner while maintaining the required high cross-sectional accuracy, but with improved handling, and to provide a method for their preparation.
- the method according to the invention should be applicable with any number of hoses, ie from two to three, four to eight or even more hoses.
- FIG. 1 shows a three-dimensional view of a front end section of a first embodiment of a hose arrangement according to the invention
- FIG. 3 shows a cross section through a second embodiment of a hose assembly according to the invention
- FIG. 4 shows a cross section through a third embodiment of a hose arrangement according to the invention
- FIG. 5 shows a cross section through a fourth embodiment of a hose assembly according to the invention
- FIG. 6 shows a cross section through a fifth embodiment of a hose arrangement according to the invention.
- Fig. 1 shows a three-dimensional view of a front end portion of a first embodiment of a hose assembly 100 according to the invention.
- the rear part, in which the hose assembly 100 is wound onto a roll, is not shown in the drawing.
- Such a roll can accommodate 50 m hose and have a winding width of 200 mm and a winding diameter of 250 mm.
- the hose assembly 100 consists of four tubes A arranged in a plane A, which are made of plastic, such as polyetheretherketone (PEEK) or silicone or fluoropolymers, for example in the present case tetrafluoroethylene-perfluoropropylene copolymer (FEP).
- PEEK polyetheretherketone
- FEP tetrafluoroethylene-perfluoropropylene copolymer
- the hoses 120 are provided with a jacket 140.
- the material of the sheath 140; 240; 340; 440; 540 is preferably plastic, such as polyurethane (PU) or polyvinyl chloride (PVC) or silicone, in the present case PVC with a hardness of 75 SH. A, so that the hose assembly 100 remains a total of about as flexible as the individual hoses.
- the front part of the sheath 140 is removed, so that the hoses 120 are exposed at their front end portion 122. At these exposed end portions 120 fittings, not shown, for example, be attached by crimping. These fittings then allow the tubing to be connected, for example, to the pipettes to allow fluid to be drawn in and out through the tubing.
- FIGS. 1 and 2 shows a cross section through the first embodiment of the hose arrangement 100 according to the invention.
- the hoses 120 are arranged at a defined distance P from one another.
- the hoses 120 have an inside diameter Di which in a practical application is eg 2 mm with a tolerance of +/- 5/100 mm.
- the outer diameter Since the tube 120 is for example 3 mm.
- the radius Ru of the cladding 14 is about 2 mm, so that the resulting cladding thickness is about 0.5 mm.
- the hose assembly 100 of FIGS. 1 and 2 is produced by unwinding four hoses 120 of hose reels arranged side by side and placing them next to one another in an extrusion tool at a defined distance P from each other.
- the hose reels can each carry a coiled hose length of 250m, 500m, 1000m or more.
- the sheath forming plastic mass is injected into a cavity formed between the hoses 120 and the extrusion die, while at the same time the hoses 120 are pulled through the tool and thus serve as mandrels.
- the tubes 120 leaving the tool, with the cover layer 140 thereon, are in turn wound up on a roll after cooling as the desired tube assembly 100.
- the outer contour of the hose assembly 100 is selected so that indentations of the shafts optionally fit into tow chain elevations with which liquid handling devices are often equipped to flexibly and flexibly connect hoses and data and power cables protected to lead to a moving dispensing head.
- the hose assembly 100 is thus safe on the
- the drag chain may even be replaced by the hose assembly 100 because the shroud 140 performs the function of guiding and protecting the hoses 120.
- a desired length of the hose assembly 100 is withdrawn from the roll and cut.
- the ends of the hose assembly 100 are prepared for fitting fittings by cutting the shroud 140 a few centimeters from the respective ends of the cut-off hose assembly 100 to the outer diameter Da of the hoses 120 therein then the skin jacket 140 is peeled off from the end of the hose assembly 100 to the recess in the jacket 140 over the hoses 120.
- end portions 122 of the tubes 120 are exposed, which can be provided in the desired manner with fittings.
- the hose end sections 122 can be guided and crimped by threaded sleeves.
- FIG 3 shows a cross section through a second embodiment of a hose arrangement 200 according to the invention of four hoses 220 and a sheathing 240 arranged next to one another in a plane A.
- the sheathing 240 is not the same everywhere, but a smooth outer contour without recesses is provided which may be advantageous depending on the desired application.
- FIG. 4 shows a cross-section through a third embodiment of a hose arrangement 300 according to the invention, consisting of three hoses 320 and a sheath 340 arranged next to each other in a plane A.
- the sheath 340 forms webs 346 between the individual hoses 320 and on the side of the outermost hoses. 348. Via the webs 346 between the hoses 320, a desired distance P2 between the hoses 320 can be established. Thus, the distance between the hoses 320 can be increased via the webs 346, so that more space for fittings to be attached to the hoses is provided and a defined distance between the fittings is ensured without the hoses 320 having to be bent away from one another.
- FIG. 5 shows a cross section through a fourth embodiment of a hose assembly 400 according to the invention, which is constructed similarly to the hose assembly 300 of FIG. 4.
- three tubes 420 are arranged in a plane and covered with a sheath 440.
- the sheath 440 forms edge-side webs 448 and central webs 446 between the individual tubes 420 and consists of two sheath halves 442, 444, which on a Abutment line T abut each other, which forms the plane in which the three tubes 420 are arranged.
- the hoses 420 are inserted next to one another in the lower sheathing half 442 and the upper sheathing halves 444 are put on.
- the sheath halves 442 it is possible to bond the sheath halves 442 to the parting line T, so that one or both surfaces of the sheath halves 442, 444 must be applied before the two halves are brought together, or the possibility of Welding eg via ultrasound, if the material of the sheath is weldable.
- the sonotrodes of the ultrasonic welding device are placed in this case on the webs 446, 448 or rolled as Rollsonotroden on the webs 446, 448.
- FIG. 6 shows a cross-section through a fifth embodiment of a hose assembly 500 according to the invention, which consists of seven hoses 520 and a jacket 540.
- the tubes 520 are in this case arranged not only in a plane A next to each other, but in addition to two other levels B and C.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Agencement de tuyaux comprenant au moins deux tuyaux, disposés à distances prédéfinies dans au moins un plan, et une gaine entourant lesdits tuyaux dans le sens de la longueur.An arrangement of pipes comprising at least two pipes, arranged at predefined distances in at least one plane, and a sheath surrounding said pipes in the longitudinal direction.
Description
Schlauchanordnung hose assembly
Die vorliegende Erfindung betrifft eine Schlauchanordnung für Flüssigkeitshand- habungsvorrichtungen zur Verwendung bei der Analyse oder medizinischen Diagnose, z.B. bei der Flüssigkeitschromatographie. The present invention relates to a hose assembly for liquid handling devices for use in analysis or medical diagnosis, e.g. in liquid chromatography.
Schläuche, die in den oben genannten Vorrichtungen für den Transport von Flüs- sigkeiten eingesetzt werden, müssen Durchmesser mit engen Toleranzen im Bereich von wenigen Hundertstel Millimetern aufweisen, um einen genau bemessenen Durchsatz der Flüssigkeiten zu gewährleisten, sie müssen chemisch beständig sein, um einer Vielzahl von Substanzen standzuhalten, sie müssen die Anlagerung von Rückständen und Keimen möglichst verhindern, um Anforderungen be- züglich Hygiene und Analysegenauigkeit gerecht zu werden, sie müssen robust sein, um in einer automatisierten Umgebung eine lange Standzeit zu haben, und sie müssen vom Monteur leicht zu verarbeiten und einzubauen sein, und dies alles zu einem günstigen Preis. Kunststoffe haben sich hierfür als geeignet erwiesen. Beispielhafte Materialien für solche Schläuche sind Polyetheretherketon (PEEK) oder Silikon oder Fluorpolymere, wie Tetrafluorethylen-Perfluorpropylen-Copo- lymer bzw. Tetrafluorethylen-Hexafluorpropylen-Copolymer (FEP). Hoses used in the above fluid handling devices must have tight tolerances of a few hundredths of a millimeter in diameter to ensure accurate throughput of fluids, and must be chemically resistant to a variety of fluids to withstand buildup of debris and germs wherever possible, to meet hygiene and analytical accuracy requirements, to be robust in order to have a long service life in an automated environment, and to be readily accessible to the installer be processed and installed, and all at a great price. Plastics have proven to be suitable for this purpose. Exemplary materials for such hoses are polyetheretherketone (PEEK) or silicone or fluoropolymers, such as tetrafluoroethylene-perfluoropropylene copolymer or tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
Automatisierte Flüssigkeitshandhabungsvorrichtungen, sogenannte Liquid Hand- ling Systeme, wie sie von der Anmelderin hergestellt und vertrieben werden, wer- den, rein beispielhaft, z.B. an Flüssigkeitschromatographen eingesetzt, um gleichzeitig unterschiedliche Fraktionen aus dem Chromatographen in verschiedene, in einem Array angeordnete Reagenzgläser oder Mikrotiterplatten einzubringen und auch wieder automatisiert aus diesen zu entnehmen. Die Flüssigkeitshandha- bungsvorrichtung bewegt hierzu einen Abgabekopf mit mehreren Auslässen für die unterschiedlichen Fraktionen sukzessive über das Array der Reagenzgläser oder Mikrotiterplatten, und gibt die entsprechenden Fraktionen in die Teströhrchen hinein oder zieht sie daraus ab. Dazu werden bislang jeweils einzelne Schläuche für die jeweilige Fraktion von der Entnahmestelle an dem Flüssigkeitschromatographen zu der entsprechenden Stelle an dem Kopf der Flüssigkeitshandhabungs- vorrichtung geführt. In der Regel sind dies 4 bis 8 Schläuche, die mehr oder weniger lose verlegt werden müssen, um der Bewegung des Abgabekopfes über dem Array folgen zu können. Automated liquid handling devices, so-called liquid handling systems, as manufactured and sold by the Applicant, are used purely by way of example on liquid chromatographs for simultaneously introducing different fractions from the chromatograph into different test tubes or microtiter plates arranged in an array and again automatically taken from these. The liquid handling For this purpose, the treatment device successively moves a dispensing head with a plurality of outlets for the different fractions over the array of test tubes or microtiter plates, and introduces or withdraws the corresponding fractions into the test tubes. For this purpose, individual hoses for the respective fraction have hitherto been guided from the removal point on the liquid chromatograph to the corresponding point on the head of the liquid handling device. These are usually 4 to 8 hoses that must be laid more or less loosely to follow the movement of the dispenser head over the array.
Es ist jedoch mühsam, jeden Schlauch einzeln verlegen zu müssen. Außerdem muss genau darauf geachtet werden, dass sich die einzelnen Schläuche im Verlaufe der Bewegung des Abgabekopfes nicht gegenseitig behindern und möglicherweise in bewegliche Teile der Flüssigkeitshandhabungsvorrichtung gelangen und diese beschädigen oder selbst beschädigt werden. However, it is cumbersome to have to lay each hose individually. In addition, care must be taken to ensure that the individual hoses do not obstruct each other during the movement of the dispensing head and possibly get into moving parts of the liquid handling device and damage or even damaged.
Um dieses Problem zu lösen, sind Versuche unternommen worden, Schläuche mit mehreren Kanälen herzustellen. Es hat sich jedoch herausgestellt, dass solche Schläuche nicht die Anforderungen bezüglich des exakten Querschnitts jedes ein- zelnen Kanals einhalten. Auch Versuche, einzelne Schläuche in Längsrichtung miteinander zu verbinden, waren aufgrund der zu verwendenden Materialien erfolglos. To solve this problem, attempts have been made to produce multi-channel tubing. However, it has been found that such hoses do not meet the requirements for the exact cross section of each individual channel. Even attempts to connect individual tubes in the longitudinal direction, were unsuccessful due to the materials to be used.
Der Erfindung liegt daher die Aufgabe zugrunde, eine Schlauchanordnung, welche auf kostengünstige Weise eine verbesserte Anordnung von Schläuchen unter Beibehaltung der erforderlichen hohen Querschnittsgenauigkeit, aber mit verbesserter Handhabung zur Verfügung stellt, und ein Verfahren zu ihrer Herstellung zu schaffen. Insbesondere soll das erfindungsgemäße Verfahren mit einer beliebigen Anzhl von Schläuchen anwendbar sein, d.h. von zwei bis 3, vier bis 8 oder noch mehr Schläuchen. The invention is therefore based on the object, a hose assembly, which provides an improved arrangement of hoses in a cost effective manner while maintaining the required high cross-sectional accuracy, but with improved handling, and to provide a method for their preparation. In particular, the method according to the invention should be applicable with any number of hoses, ie from two to three, four to eight or even more hoses.
Diese Aufgabe wird durch eine Schlauchanordnung nach Anspruch 1 , eine Flüs- sigkeitshandhabungsvorrichtung nach Anspruch 9 und ein Verfahren zur Herstellung einer Schlauchanordnung nach Anspruch 10 gelöst. This object is achieved by a hose arrangement according to claim 1, a liquid handling device according to claim 9 and a method for producing a hose arrangement according to claim 10.
Weitere vorteilhafte Ausführungsformen sind in den Unteransprüchen angegeben. Die Erfindung wird im Folgenden beispielhaft anhand der Zeichnungen beschrieben, in diesen zeigt: eine dreidimensionale Ansicht eines vorderen Endabschnitts einer ersten Ausführungsform einer erfindungsgemäßen Schlauchanord- nung Further advantageous embodiments are specified in the subclaims. The invention is described below by way of example with reference to the drawings, in which: FIG. 1 shows a three-dimensional view of a front end section of a first embodiment of a hose arrangement according to the invention
Fig. 2 einen Querschnitt durch die erste Ausführungsform der erfindungsgemäßen Schlauchanordnung, 2 shows a cross section through the first embodiment of the hose assembly according to the invention,
Fig. 3 einen Querschnitt durch eine zweite Ausführungsform einer erfindungsgemäßen Schlauchanordnung, 3 shows a cross section through a second embodiment of a hose assembly according to the invention,
Fig. 4 einen Querschnitt durch eine dritte Ausführungsform einer erfindungsgemäßen Schlauchanordnung, 4 shows a cross section through a third embodiment of a hose arrangement according to the invention,
Fig. 5 einen Querschnitt durch eine vierte Ausführungsform einer erfindungsgemäßen Schlauchanordnung, 5 shows a cross section through a fourth embodiment of a hose assembly according to the invention,
Fig. 6 einen Querschnitt durch eine fünfte Ausführungsform einer erfindungsgemäßen Schlauchanordnung. Fig. 1 zeigt eine dreidimensionale Ansicht eines vorderen Endabschnitts einer ersten Ausführungsform einer erfindungsgemäßen Schlauchanordnung 100. Der hintere Teil, in welchem die Schlauchanordnung 100 auf eine Rolle aufgewickelt ist, ist in der Zeichnung nicht dargestellt. Eine solche Rolle kann 50 m Schlauch aufnehmen und eine Wickelbreite von 200 mm und einen Wickeldurchmesser von 250 mm haben. Die Schlauchanordnung 100 besteht aus vier in einer Ebene A angeordneten Schläuchen 120, die aus Kunststoff, wie etwa Polyetheretherketon (PEEK) oder Silikon oder Fluorpolymeren, zum Beispiel im vorliegenden Fall Tet- rafluorethylen-Perfluorpropylen-Copolymer (FEP) hergestellt sind. Die Schläuche 120 sind einer Ummantelung 140 versehen. Das Material der Ummantelung 140; 240; 340; 440; 540 ist vorzugsweise Kunststoff, wie Polyurethan (PU) oder Polyvinylchlorid (PVC) oder Silikon, im vorliegenden Fall PVC mit einer Härte von 75 SH. A, so dass die Schlauchanordnung 100 insgesamt in etwa so flexibel wie die einzelnen Schläuche bleibt. Der vordere Teil der Ummantelung 140 ist entfernt, so dass die Schläuche 120 an ihrem vorderen Endabschnitt 122 freiliegen. An diesen freiliegenden Endabschnitten 120 können nicht dargestellte Fittinge beispielsweise durch Bördeln befestigt werden. Diese Fittinge ermöglichen dann den Anschluss der Schläuche z.B. an die Pipetten, um Flüssigkeiten durch die Schläuche hin- durch aufnehmen und abgeben zu können. 6 shows a cross section through a fifth embodiment of a hose arrangement according to the invention. Fig. 1 shows a three-dimensional view of a front end portion of a first embodiment of a hose assembly 100 according to the invention. The rear part, in which the hose assembly 100 is wound onto a roll, is not shown in the drawing. Such a roll can accommodate 50 m hose and have a winding width of 200 mm and a winding diameter of 250 mm. The hose assembly 100 consists of four tubes A arranged in a plane A, which are made of plastic, such as polyetheretherketone (PEEK) or silicone or fluoropolymers, for example in the present case tetrafluoroethylene-perfluoropropylene copolymer (FEP). The hoses 120 are provided with a jacket 140. The material of the sheath 140; 240; 340; 440; 540 is preferably plastic, such as polyurethane (PU) or polyvinyl chloride (PVC) or silicone, in the present case PVC with a hardness of 75 SH. A, so that the hose assembly 100 remains a total of about as flexible as the individual hoses. The front part of the sheath 140 is removed, so that the hoses 120 are exposed at their front end portion 122. At these exposed end portions 120 fittings, not shown, for example, be attached by crimping. These fittings then allow the tubing to be connected, for example, to the pipettes to allow fluid to be drawn in and out through the tubing.
Fig. 2 zeigt einen Querschnitt durch die erste Ausführungsform der erfindungsgemäßen Schlauchanordnung 100. Die Schläuche 120 sind in einem definierten Abstand P voneinander angeordnet. Die Schläuche 120 weisen einen Innendurch- messer Di auf, der in einer praktischen Anwendung z.B. 2 mm mit einer Toleranz von +/- 5/100 mm beträgt. Der Außendurchmesser Da der Schläuche 120 beträgt z.B. 3 mm. Der Radius Ru der Ummantelung 14 beträgt etwa 2 mm, so dass die resultierende Dicke der Ummantelung etwa 0,5 mm beträgt. Hergestellt wird die Schlauchanordnung 100 der Fig. 1 und 2 indem vier Schläuche 120 von nebeneinander angeordneten Schlauchrollen abgewickelt und in einem definierten Abstand P zueinander nebeneinander in ein Extrusionswerkzeug eingelegt werden. Die Schlauchrollen können zum Beispiel jeweils eine aufgerollte Schlauchlänge von 250m, 500m, 1000m oder mehr tragen. Die die Ummantelung bildende Kunststoffmasse wird in einen zwischen den Schläuchen 120 und dem Extrusionswerkzeug gebildeten Hohlraum eingespritzt, während gleichzeitig die Schläuche 120 durch das Werkzeug hindurch gezogen werden und damit als Dorne dienen. Die das Werkzeug verlassenden Schläuche 120 mit der darauf befind- liehen Ummantelungsschicht 140 werden wiederum nach Abkühlung als die gewünschte Schlauchanordnung 100 auf eine Rolle aufgewickelt. 2 shows a cross section through the first embodiment of the hose arrangement 100 according to the invention. The hoses 120 are arranged at a defined distance P from one another. The hoses 120 have an inside diameter Di which in a practical application is eg 2 mm with a tolerance of +/- 5/100 mm. The outer diameter Since the tube 120 is for example 3 mm. The radius Ru of the cladding 14 is about 2 mm, so that the resulting cladding thickness is about 0.5 mm. The hose assembly 100 of FIGS. 1 and 2 is produced by unwinding four hoses 120 of hose reels arranged side by side and placing them next to one another in an extrusion tool at a defined distance P from each other. For example, the hose reels can each carry a coiled hose length of 250m, 500m, 1000m or more. The sheath forming plastic mass is injected into a cavity formed between the hoses 120 and the extrusion die, while at the same time the hoses 120 are pulled through the tool and thus serve as mandrels. The tubes 120 leaving the tool, with the cover layer 140 thereon, are in turn wound up on a roll after cooling as the desired tube assembly 100.
Im Fall der Ausführungsform von Schlauchanordnung 100 gemäß den Fig. 1 und 2 ist die Außenkontur der Schlauchanordnung 100 gewählt, so dass Vertiefungen der Wellen gegebenenfalls in Erhebungen einer Schleppkette passen, mit welcher Flüssigkeitshandhabungsvorrichtungen häufig ausgestattet sind, um Schläuche und Daten- und Stromkabel flexibel und geschützt zu einem sich bewegenden Abgabekopf zu führen. Die Schlauchanordnung 100 wird damit sicher an der In the case of the embodiment of the hose assembly 100 of FIGS. 1 and 2, the outer contour of the hose assembly 100 is selected so that indentations of the shafts optionally fit into tow chain elevations with which liquid handling devices are often equipped to flexibly and flexibly connect hoses and data and power cables protected to lead to a moving dispensing head. The hose assembly 100 is thus safe on the
Schleppkette geführt und es besteht nicht mehr die Gefahr, dass einzelne Schläu- che in die Mechanik der Flüssigkeitshandhabungsvorrichtung gelangen. Die Schleppkette kann sogar durch die Schlauchanordnung 100 ersetzt werden, da die Ummantelung 140 die Funktion der Führung und des Schutzes der Schläuche 120 übernimmt. Zur Konfektionierung der zu verbauenden Schlauchanordnung 100 wird eine gewünschte Länge der Schlauchanordnung 100 von der Rolle abgezogen und abgeschnitten. Die Enden der Schlauchanordnung 100 werden für den Anschluss von Fittingen vorbereitet, indem die Ummantelung 140 ein paar Zentimeter von den jeweiligen Enden der abgeschnittenen Schlauchanordnung 100 bis zum Außen- durchmesser Da der darin befindlichen Schläuche 120 eingeschnitten wird und dann die Unnnnantelung 140 vom Ende der Schlauchanordnung 100 bis zum Einschnitt in der Ummantelung 140 über die Schläuche 120 hinweg abgezogen wird. Nun liegen Endabschnitte 122 der Schläuche 120 frei, die in gewünschter Weise mit Fittingen versehen werden können. Dazu können beispielsweise die Schlau- chendabschnitte 122 durch Gewindemuffen geführt und umgebördelt werden. Drag chain out and there is no longer the risk that individual hoses get into the mechanics of the liquid handling device. The drag chain may even be replaced by the hose assembly 100 because the shroud 140 performs the function of guiding and protecting the hoses 120. To assemble the hose assembly 100 to be installed, a desired length of the hose assembly 100 is withdrawn from the roll and cut. The ends of the hose assembly 100 are prepared for fitting fittings by cutting the shroud 140 a few centimeters from the respective ends of the cut-off hose assembly 100 to the outer diameter Da of the hoses 120 therein then the skin jacket 140 is peeled off from the end of the hose assembly 100 to the recess in the jacket 140 over the hoses 120. Now end portions 122 of the tubes 120 are exposed, which can be provided in the desired manner with fittings. For this purpose, for example, the hose end sections 122 can be guided and crimped by threaded sleeves.
Fig. 3 zeigt einen Querschnitt durch eine zweite Ausführungsform einer erfindungsgemäßen Schlauchanordnung 200 aus vier nebeneinander in einer Ebene A angeordneten Schläuchen 220 und einer Ummantelung 240. Hier ist die Umman- telung 240 nicht überall gleich dick, aber es ist eine glatte Außenkontur ohne Vertiefungen vorgesehen, die je nach gewünschtem Anwendungsfall vorteilhaft sein kann. 3 shows a cross section through a second embodiment of a hose arrangement 200 according to the invention of four hoses 220 and a sheathing 240 arranged next to one another in a plane A. Here, the sheathing 240 is not the same everywhere, but a smooth outer contour without recesses is provided which may be advantageous depending on the desired application.
Fig. 4 zeigt einen Querschnitt durch eine dritte Ausführungsform einer erfindungs- gemäßen Schlauchanordnung 300 aus drei nebeneinander in einer Ebene A angeordneten Schläuchen 320 und einer Ummantelung 340. Die Ummantelung 340 bildet zwischen den einzelnen Schläuchen 320 und an der Seite der äußersten Schläuche Stege 346, 348. Über die Stege 346 zwischen den Schläuchen 320 kann ein gewünschter Abstand P2 zwischen den Schläuchen 320 hergestellt wer- den. So kann über die Stege 346 der Abstand zwischen den Schläuchen 320 vergrößert werden, so dass mehr Raum für an die Schläuche zu befestigen Fittinge vorhanden ist und ein definierter Abstand zwischen den Fittingen sichergestellt wird, ohne dass die Schläuche 320 voneinander weggebogen werden müssen. Fig. 5 zeigt einen Querschnitt durch eine vierte Ausführungsform einer erfindungsgemäßen Schlauchanordnung 400, die ähnlich wie die Schlauchanordnung 300 der Fig. 4 aufgebaut ist. Wieder sind drei Schläuche 420 in einer Ebene angeordnet und mit einer Ummantelung 440 ummantelt. Die Ummantelung 440 bildet randseitige Stege 448 und zentrale Stege 446 zwischen den einzelnen Schläu- chen 420 und besteht aus zwei Ummantelungshälften 442, 444, die an einer Trennlinie T aneinander anliegen, die die Ebene bildet, in der die drei Schläuche 420 angeordnet sind. 4 shows a cross-section through a third embodiment of a hose arrangement 300 according to the invention, consisting of three hoses 320 and a sheath 340 arranged next to each other in a plane A. The sheath 340 forms webs 346 between the individual hoses 320 and on the side of the outermost hoses. 348. Via the webs 346 between the hoses 320, a desired distance P2 between the hoses 320 can be established. Thus, the distance between the hoses 320 can be increased via the webs 346, so that more space for fittings to be attached to the hoses is provided and a defined distance between the fittings is ensured without the hoses 320 having to be bent away from one another. 5 shows a cross section through a fourth embodiment of a hose assembly 400 according to the invention, which is constructed similarly to the hose assembly 300 of FIG. 4. Again, three tubes 420 are arranged in a plane and covered with a sheath 440. The sheath 440 forms edge-side webs 448 and central webs 446 between the individual tubes 420 and consists of two sheath halves 442, 444, which on a Abutment line T abut each other, which forms the plane in which the three tubes 420 are arranged.
Zur Herstellung dieser Schlauchanordnung werden die Schläuche 420 nebenei- nander in die untere Ummantelungshälfte 442 eingelegt und die obere Ummante- lungshälften 444 wird aufgesetzt. Für die Verbindung der Ummantelungshälften 442 besteht je nach Materialwahl die Möglichkeit der Verklebung an der Trennlinie T, so dass auf eine oder beide berührt Flächen der Ummantelungshälften 442, 444 Klebstoff aufgetragen werden muss, bevor die beiden Hälften zusammenge- bracht werden, oder die Möglichkeit der Verschweißung z.B. über Ultraschall, wenn das Material der Ummantelung schweißbar ist. Die Sonotroden der Ultraschallschweißvorrichtung werden in diesem Fall auf die Stege 446, 448 aufgesetzt oder als Rollsonotroden über die Stege 446, 448 gerollt. Fig. 6 zeigt einen Querschnitt durch eine fünfte Ausführungsform einer erfindungsgemäßen Schlauchanordnung 500, die aus sieben Schläuchen 520 und einer Ummantelung 540 besteht. Die Schläuche 520 sind in diesem Fall aber nicht nur in einer Ebene A nebeneinander angeordnet, sondern zusätzlich in zwei weiteren Ebenen B und C. To produce this hose arrangement, the hoses 420 are inserted next to one another in the lower sheathing half 442 and the upper sheathing halves 444 are put on. Depending on the choice of material, it is possible to bond the sheath halves 442 to the parting line T, so that one or both surfaces of the sheath halves 442, 444 must be applied before the two halves are brought together, or the possibility of Welding eg via ultrasound, if the material of the sheath is weldable. The sonotrodes of the ultrasonic welding device are placed in this case on the webs 446, 448 or rolled as Rollsonotroden on the webs 446, 448. 6 shows a cross-section through a fifth embodiment of a hose assembly 500 according to the invention, which consists of seven hoses 520 and a jacket 540. The tubes 520 are in this case arranged not only in a plane A next to each other, but in addition to two other levels B and C.
Es ist anzumerken, dass es für den Anschluss der einzelnen Schläuche bei der Montage vorteilhaft sein kann, wenn diese eine individuelle Farbe oder Kodierung aufweisen, um die Zuordnung der jeweiligen Enden zu gewährleisten. It should be noted that it may be advantageous for the connection of the individual hoses during assembly if they have an individual color or coding to ensure the assignment of the respective ends.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
A, B, C Ebene A, B, C level
Di Schlauchinnendurchnnesser Da Schlauchaußendurchnnesser Ru Radius UmmantelungInner tubing tubing Since tubing outside diameter Ru radius sheathing
P, P2 Schlauchabstand P, P2 hose distance
T Trennlinie T dividing line
100; 200; 300; 400; 500 Schlauchanordnung 100; 200; 300; 400; 500 hose arrangement
120; 220; 320; 420; 520 Schlauch 120; 220; 320; 420; 520 hose
122 Endabschnitt 122 end section
140; 240; 340; 440; 540 Ummantelung 140; 240; 340; 440; 540 sheathing
346, 348; 446, 448 Stege 346, 348; 446, 448 footbridges
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017119841.5A DE102017119841A1 (en) | 2017-08-29 | 2017-08-29 | hose assembly |
PCT/EP2018/073113 WO2019042989A1 (en) | 2017-08-29 | 2018-08-28 | HOSE ASSEMBLY |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3661650A1 true EP3661650A1 (en) | 2020-06-10 |
Family
ID=63642937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18773080.9A Pending EP3661650A1 (en) | 2017-08-29 | 2018-08-28 | Tube assembly |
Country Status (5)
Country | Link |
---|---|
US (1) | US20200346216A1 (en) |
EP (1) | EP3661650A1 (en) |
JP (1) | JP2020531869A (en) |
DE (1) | DE102017119841A1 (en) |
WO (1) | WO2019042989A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH717820A1 (en) * | 2020-09-08 | 2022-03-15 | Integra Biosciences Ag | Tubing for attaching to a dispensing cassette for inclusion in a peristaltic pump. |
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JPS6298263A (en) * | 1985-10-25 | 1987-05-07 | Toshiba Corp | Tube for automatic chemical analyzer |
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2017
- 2017-08-29 DE DE102017119841.5A patent/DE102017119841A1/en not_active Withdrawn
-
2018
- 2018-08-28 US US16/643,348 patent/US20200346216A1/en not_active Abandoned
- 2018-08-28 WO PCT/EP2018/073113 patent/WO2019042989A1/en unknown
- 2018-08-28 EP EP18773080.9A patent/EP3661650A1/en active Pending
- 2018-08-28 JP JP2020533354A patent/JP2020531869A/en active Pending
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Also Published As
Publication number | Publication date |
---|---|
DE102017119841A1 (en) | 2019-02-28 |
US20200346216A1 (en) | 2020-11-05 |
WO2019042989A1 (en) | 2019-03-07 |
JP2020531869A (en) | 2020-11-05 |
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