WO2021239333A1 - Raccord tuyau-connecteur - Google Patents

Raccord tuyau-connecteur Download PDF

Info

Publication number
WO2021239333A1
WO2021239333A1 PCT/EP2021/060118 EP2021060118W WO2021239333A1 WO 2021239333 A1 WO2021239333 A1 WO 2021239333A1 EP 2021060118 W EP2021060118 W EP 2021060118W WO 2021239333 A1 WO2021239333 A1 WO 2021239333A1
Authority
WO
WIPO (PCT)
Prior art keywords
hose
connector
section
adhesive
mandrel
Prior art date
Application number
PCT/EP2021/060118
Other languages
German (de)
English (en)
Inventor
Matthias Klein
Martin Dopadlo
Original Assignee
Eugen Forschner 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 Eugen Forschner Gmbh filed Critical Eugen Forschner Gmbh
Priority to EP21721015.2A priority Critical patent/EP4158231A1/fr
Publication of WO2021239333A1 publication Critical patent/WO2021239333A1/fr

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
    • F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
    • F16L33/34—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses with bonding obtained by vulcanisation, gluing, melting, or the like
    • 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
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/10—Adhesive or cemented joints
    • F16L13/11—Adhesive or cemented joints using materials which fill the space between parts of a joint before hardening
    • F16L13/116—Adhesive or cemented joints using materials which fill the space between parts of a joint before hardening for socket pipes

Definitions

  • the present invention relates to a hose connector connection according to the preamble of claim 1 and a method for producing a hose connector connection according to the preamble of claim 10.
  • a device for connecting a plastic pipe to a connection nipple is known from EP 2 154 411 B1, one connection end of the plastic pipe being designed with a bevel at the end to facilitate slipping over the connection nipple.
  • the clamping sleeve for its part, is widened at the front to enable the plastic pipe to be inserted.
  • the connection presented there achieves the connection exclusively by clamping.
  • the solution presented there has the disadvantage that the play between the connector and the hose increases in the direction of the connector end, which in the long term leads to the adhesive Un leakage or loosening of the connection claimed.
  • the object of the invention is to provide a hose-connector connection and a method for producing a hose-connector connection which overcome the disadvantages of the prior art and provide a permanent, tight seal. Allow connection between hose and connector. Furthermore, an inexpensive solution is desired.
  • a hose connector connection according to the invention comprises a connector which has a first end and a second end provided at the opposite end with respect to a flow direction.
  • the first end is also referred to as the front end in the context of the invention.
  • the connector has a flow channel running between the front end and the second end and a partition which divides the flow channel into a first section facing the front end and a second section facing the second end.
  • the flow channel is provided with a passage opening for establishing a fluid connection between the first section and the second section.
  • the connector is, for example, an SAE plug or T-connector known from the prior art.
  • the hose-connector connection also comprises a hose, the first section of the connector forming a receiving opening for the hose.
  • the connector on its first section in particular designed as a sleeve, is provided on the inside with insertion ribs whose dimensions are matched to the outer dimensions of a free hose end in such a way that the hose is centered when the free hose end is inserted.
  • the inclined insertion or guide ribs ensure that the hose moves in a straight line when it is plugged on. As a result, the hose can no longer be pushed onto the connector at an angle.
  • the connector comprises a plurality of insertion ribs, which are preferred on the inside of its first section regular circular division are arranged.
  • the connector in the area of the first section, in cross section, the connector is provided with an approximately star-shaped or gear-shaped recess, which is surrounded in a ring-shaped manner by the insertion ribs. Due to the particularly regular distribution of the insertion ribs, a homogeneous distribution of an adhesive in the free space between the outside of the hose and the connector sleeve can be achieved.
  • At least two, more preferably at least three, insertion ribs are expediently provided on the inside of the first section of the connector.
  • the insertion ribs at the front end of the connector are provided with insertion ramps which form a phase or bevel in the direction of the front end.
  • the insertion ramps delimit between them a free volume which decreases in the direction of the second end, more precisely a recess in the form of a free space cone with a ribbed outer surface which tapers in the direction of the second end.
  • the tube end to be pushed onto the connector is forcibly centered by the insertion ramps, even if the clamping jaw holding the tube is not completely coaxially aligned with the connector.
  • the insertion ribs have longitudinal guide sections which preferably adjoin the insertion ramps.
  • the longitudinal guide sections limit a free space between them in which a section of the hose is received.
  • the free space located between the longitudinal guide sections is designed, for example, in the form of a cylinder with a ribbed outer surface.
  • the hose connector connection contains an adhesive for attaching the hose to the connector.
  • the adhesive is located in the receiving opening of the connector, namely in the area of the first section with respect to the partition.
  • the connector has a mandrel which extends from the partition wall in the direction of the front end and which has an axial bore penetrating it for establishing a fluid connection for the passage opening is provided.
  • the hose comprises a push-on section which is pushed onto the mandrel from the front end.
  • the insertion ribs provided according to the invention align the hose in the direction of the dome when the free hose end is inserted.
  • the first section is designed as a receiving opening for the hose attached to the mandrel and the adhesive so that the adhesive there over the outside of the hose with the Connector connects.
  • the receiving opening is at least essentially filled with adhesive when the hose is attached.
  • the mandrel is configured at its end facing away from the partition wall with a bevel tapering towards the front end.
  • the tapering bevel of the mandrel makes it easier to plug the hose end onto the mandrel.
  • the insertion ribs are formed in one piece on the connector. On the one hand, this makes handling easier, but on the other hand, it requires a different design of the connector compared to standardized SAE connectors.
  • the insertion ribs are formed on a separate component which, according to a second alternative, can be placed either in the entrance area of the first face end of the connector in a form-fitting manner or, according to a third alternative, can be placed at the free end of the hose.
  • a method according to the invention for producing a hose connector connection comprises the following steps:
  • a connector which has a front first end and a second end provided with respect to a flow direction at the opposite end and a flow channel running between them and a partition arranged between the front end and the second end, which divides the flow channel into one of the front ends facing first Section and a second section facing the second end is subdivided and provided with a passage opening for establishing a fluid connection between the first section and the second section, and the first section of which is provided on the inside with insertion ribs;
  • the first section being designed as a receiving opening for the hose and the dimensions of the insertion ribs being matched to the external dimensions of a free hose end;
  • the method according to the invention can achieve the same or similar advantages as with the hose connector connection according to the invention, which is why reference is made to the above statements in connection with the hose connector connection according to the invention in order to avoid repetition.
  • the connector is provided with a mandrel which extends from the partition wall to the first end and which is provided with an axial bore penetrating it for establishing a fluid connection to the passage opening, the first section as a receiving opening for the the hose to be attached to the mandrel and an adhesive is designed that, in addition to that, the hose is provided with a push-on section to be attached to the mandrel and with the following further steps:
  • the amount of adhesive is preferably dimensioned such that an annular space between the mandrel and a surrounding outer sleeve of the connector at the end of the Aufsteckvor gang surrounding the hose end is at least largely filled with adhesive.
  • FIG. 1 shows an embodiment of a hose-connector connection according to the prior art, the hose being shown outside the connector in a position not yet attached to the mandrel
  • FIG. 2 shows a first embodiment of a hose-connector connection according to the invention the inside of the connector formed insertion ribs, wherein the hose is shown in the state not yet attached to the mandrel outside of the connector
  • FIG. 3 shows the first embodiment of a hose connector connection according to the invention, rotated by 180 ° in relation to FIG. 2 in the fully assembled state
  • FIG. 4 shows a second embodiment of a hose connector connection according to the invention with insertion ribs formed on a separate annular component, the separate component being pushed onto the first end of the connector,
  • Fig. 5 shows a third and fourth embodiment of a hose connector connection according to the invention, wherein in the left part of the figure, as a third embodiment, a separate annular component with a guide ribs formed on the inside thereof is inserted into the first end of the connector limited by a stop surface and wherein in the right part of the figure as a fourth embodiment form, a separate annular component with formed on the outside th insertion ribs on the free end of the hose limited by a stop surface is attached.
  • Fig. 1 shows an embodiment of a hose connector connection 10 'according to the prior art.
  • the hose connector connection 10 ' comprises a hose 40' which is shown outside a connector 20 ', that is to say is not yet in an attached state.
  • the hose 40 ‘ is held by a pair of jaws 60‘ and is moved with its free end 43 ‘in the direction of the connector 20‘ to enter into a connector with this.
  • the connector 20 ' has a front first end 2T and a second end 22', which is arranged downstream in relation to a flow emanating from the hose 40 'through a flow channel 24'.
  • a partition wall 30 'with a passage opening 32' separates a first section 25 ', which faces the front first end 2T, from a second section 26', which faces the second end 22 'of the connector 20' arranged opposite the first end 2T is.
  • a mandrel 36‘ is arranged in the direction of the first front end 2T, on which the free end 43 ‘of the hose 40‘ is to be attached.
  • the mandrel 36 ‘ has an axial bore 37‘, which connects the partition wall 30 ‘penetrating the first section 25‘ with the second section 26 ‘.
  • the embodiment of a hose connector connection 10 according to the invention shown in FIG. 2 is formed from three main components: a connector 20, a hose 40 and an adhesive 70 with which the hose 40 is attached to the connector 20.
  • the hose 40 is also held during the insertion process by a pair of clamping jaws 60 and is moved with its free end 43 in the direction of the connector 20 in the direction of the coupling path K indicated by a double arrow to enter into a plug connection with this.
  • the connector 20 has a first end 21, shown on the right in FIG. 2, and a second end 22, shown on the left in FIG. 2.
  • the second end 22 of the connector 20 is typically connected to a device (not shown) or integrated into this device, which is to be provided with a fluid that can be conveyed through the hose 40.
  • the first end 21 of the connector 20 is a free end to which the hose 40 is connected with its free end 43 in the manner described below.
  • a flow channel 24 runs between the first end 21 and the second end 22.
  • a passage opening 32 is provided in the partition wall 30.
  • a mandrel 36 extends from the partition wall 30 coaxially to the passage opening 32 to the first end 21, which is penetrated by an axial bore 37 through which the fluid from the first section 25 to the second section 26 - or depending on the intended use swept - can flow.
  • the mandrel 36 has a bevel 38 which tapers towards the first end 21. This bevel 38 is used to make it easier to attach the hose 40.
  • the hose 40 comprises a push-on section 42 which is pushed onto the mandrel 36, as shown in FIG. 3.
  • the inner diameter of the hose 40 is slightly smaller than the outer diameter of the dome 36 and thus the hose 40 is plug onto the mandrel 36, widened somewhat, and lie tightly against the outside of the mandrel 36.
  • the first section 25 of the flow channel 24 is designed as a receiving opening for the hose 40 and the adhesive 70. As can be seen in FIG. 2, the annular space remaining in this receiving opening, which is not occupied by the hose 40 and the mandrel 36, is partially filled with the adhesive 70.
  • the hose 40 consists for example of polyamide (PA), polyphthalamide (PPA), Po lyethylene (PE), polypropylene (PP) or polyvinyl chloride (PVC).
  • PA polyamide
  • PPA polyphthalamide
  • PE polypropylene
  • PVC polyvinyl chloride
  • PA 12HL polyamide
  • PA 12 HL polyamide pipes for motor vehicles
  • PA 12 MHLR polyamide pipes for motor vehicles
  • PA 12 MHLR, 18-010N according to ISO 1874.
  • Polyphthalamide (PPA) is preferably used for so-called high-temperature hoses. All of the above material specifications are only to be understood as examples and not restrictive.
  • the mandrel 36 can have a length of approximately 5.2 mm.
  • the outside diameter of the hose 40 can be about 4.65 mm and the inside diameter of the hose about 2.05 mm.
  • the connector 20 is designed as a sleeve 28 in the area of the first section 25 in the area of its outer wall, i.e. tubular with a constant outer diameter over its length.
  • the inside of the sleeve 28 is preferably provided with a plurality of insertion ribs 50.
  • the insertion ribs 50 come into contact with the outside 41 of the tube 40 and center it.
  • the insertion ribs 50 in the illustrated embodiment are not restrictively but advantageously chamfered, i.e. designed with insertion ramps 51, and comprise longitudinal guide sections 52 which adjoin the insertion ramps 51 which narrow inwards at an angle. In the area of the insertion ramps 51, these delimit a free volume in the form of a conical section 56, which decreases in the direction of the second end.
  • the insertion ramps 51 are matched to the external dimensions of the free hose end 43 in such a way that the hose 40 when the free hose end 43 is inserted is centered, in particular also in a case when the clamping jaws 60 are not aligned parallel to the connector 20 or mandrel 36.
  • the centering of the hose 40 in relation to the connector 20 or, in the exemplary embodiment shown, also in relation to the mandrel 36 is further supported by the longitudinal guide sections 52 of the insertion ribs 50.
  • the adhesive 70 is evenly distributed in the free volume 54 outside the hose 40 and connects the hose 40 to the connector 20.
  • FIG 3 shows an alternative embodiment of a hose connector connection 10 designed according to the invention in the assembled state.
  • the hose 40 shown here on the left, is slipped over the mandrel 36, with the hose 40 having widened somewhat in the area of the push-on section 42.
  • the adhesive 70 has been displaced from the original area and ideally surrounds the tube 40 as far as possible as far as the frontal first end 21 of the connector 20.
  • the area between the insertion ribs 50 is also filled with the adhesive 70.
  • the connector 20 in FIG. 3 is formed on the outside with a number of ring flanges 29 which, for example, fulfill sealing or holding functions. Furthermore, in the illustrated embodiment, the connector 20 in the area of the second section 26 is provided with an outer diameter that is larger than that of the first section 25, which is also to be understood as an expedient and not restrictive embodiment.
  • the hose 40 is not pushed onto the mandrel 36 as far as it will go against the partition 30. It is advantageous to have a gap 72 between the hose 40 and the separating wall 30 is provided, which is also filled with the adhesive 70, so that the adhesive 70 surrounds the hose end 43 on its end face and on its outside.
  • the gap 72 ensures that the front end 44 of the hose 40 is securely fastened to the partition 30 by means of the adhesive 70 and thus improves the tightness of the system. In practice, a width of the gap 72 between 0.1 and 0.6 mm has proven itself.
  • FIG. 4 shows a further variant of the invention in which the connector 20 is provided with a separate annular component 80 at its first end 21.
  • the component 80 has an annular body 81, which rests with a larger diameter part with a stop surface 82 on the face of the first end 21 of the connector 20 and which rests with a smaller diameter part against the inside of the first section 25 of the connector 20 .
  • On the inside of the separate component 80 in the exemplary embodiment shown, four insertion ribs 50A are provided, evenly distributed around the circumference, which have an insertion ramp 51A which widens obliquely outwards towards the outer end of the component 80.
  • the insertion ribs 50A in conjunction with the insertion ramps 51A, serve to center a hose 40 when it is inserted into the annular space 35 and when the inner diameter of the hose 40 is pushed onto the mandrel 36.
  • FIG. 5 two further variants of the invention are shown.
  • the first end 21 of the connector 20 has a cylindrical widening which is delimited inwardly by a stop surface 82A.
  • a separate component 80A is inserted into the annular space formed by the cylindrical enlargement, which has inwardly projecting insertion ribs 50B with insertion ramps 51B arranged on the outside. Insertion ribs 50B and insertion ramps 51B, several of which are evenly distributed on the inner circumference of the separate component 80A, serve for the centered insertion of the hose 40.
  • FIG. 5 a further alternative of the invention is shown, which can be used independently of the separate component 80A described in the preceding paragraph.
  • an additional separate component 90 is seen, which can be plugged onto the end 43 of the hose 40.
  • a force-fit plugging is just as possible as that shown in the right part of FIG. 5
  • Positive attachment possible in which the separate component 90 is pushed up with a ring body by 91 into an annular recess on the outer circumference of the hose 40, which is delimited by a stop surface 92.
  • the separate component 90 has a plurality of insertion ribs 50C which are uniformly spaced and which, starting from longitudinal guide sections 52C, have insertion ramps 51C which taper towards the end of the hose 40.
  • the insertion ribs 50C with the insertion ramps 51C also serve to insert the hose 40 into the connector 20 in a centered manner.
  • a method according to the invention for producing a hose connector connection 10 is explained below with reference to the illustration in FIG. 3.
  • the adhesive 70 is introduced into the first section 25 of the flow channel 24 in such a way that the space from the partition wall 30, for example, to the start of the bevel 38 of the dome 36, but rather over a smaller part of the Annular space 35 is filled with adhesive 70 starting from the partition wall 30.
  • the push-on section 42 of the hose 40 is pushed onto the mandrel 36 so far that the gap 72 in which the adhesive 70 remains is formed between the front end 44 of the push-on section 42 and the partition 30.
  • This attachment process can be programmed in a simple manner in the machine used for this purpose in such a way that it is ensured that the gap 72 remains after the attachment process has ended.
  • the insertion ribs 50 center the hose 40 with respect to the connector 20 or with respect to the dome 36 when the free hose end 43 is inserted.
  • slip-on section (from 40)
  • Front end (from 40 or 42), 50 A, 50 B insertion rib, 51A, 51B, 51C insertion ramp
  • Ring body, 82 A stop surface 83 outer wall (of 80)

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints That Cut Off Fluids, And Hose Joints (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)

Abstract

L'invention concerne un raccord tuyau-connecteur comprenant : un connecteur (20) comportant une première extrémité côté face (21), une deuxième extrémité (22) prévue à l'extrémité opposée par rapport à la direction d'écoulement, un canal d'écoulement (24) s'étendant entre ces extrémités, et une paroi de séparation (30) qui est agencée entre l'extrémité côté face (21) et la deuxième extrémité (22) et qui divise le canal d'écoulement (24) en une première partie (25) orientée vers l'extrémité côté face (21) et une deuxième partie (26) orientée vers la deuxième extrémité (22), ainsi qu'une ouverture de passage (32) servant à créer une liaison fluidique entre la première partie (25) et la deuxième partie (26) ; et un tuyau (40), ladite première partie (25) formant une ouverture de réception pour ce tuyau (40). L'objectif de cette invention est de pouvoir produire un raccord tuyau-connecteur de manière fiable. À cet effet, le connecteur (20) comporte, côté interne, dans la zone de sa première partie (25), des nervures d'introduction (50) dont les dimensions sont adaptées aux dimensions extérieures d'une extrémité de tuyau (43) libre de manière que le tuyau (40) soit centré lors de l'introduction de l'extrémité de tuyau (43) libre. Cette invention concerne également un procédé pour produire un tel raccord tuyau-connecteur.
PCT/EP2021/060118 2020-05-29 2021-04-19 Raccord tuyau-connecteur WO2021239333A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP21721015.2A EP4158231A1 (fr) 2020-05-29 2021-04-19 Raccord tuyau-connecteur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020114512.8A DE102020114512A1 (de) 2020-05-29 2020-05-29 Schlauch-konnektor-verbindung
DE102020114512.8 2020-05-29

Publications (1)

Publication Number Publication Date
WO2021239333A1 true WO2021239333A1 (fr) 2021-12-02

Family

ID=75659992

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2021/060118 WO2021239333A1 (fr) 2020-05-29 2021-04-19 Raccord tuyau-connecteur

Country Status (3)

Country Link
EP (1) EP4158231A1 (fr)
DE (1) DE102020114512A1 (fr)
WO (1) WO2021239333A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642155A1 (fr) * 1989-01-24 1990-07-27 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes colles et procede pour sa fabrication
DE19945218C1 (de) * 1999-09-21 2001-03-22 Raymond A & Cie Rohrförmiges Kupplungsteil und Verfahren zur Herstellung einer Klebeverbindung mit einer Fluidleitung
DE102010010765A1 (de) * 2010-03-09 2011-09-15 Eugen Forschner Gmbh Vorrichtung und Verfahren zum Verbinden einer ein Fluid führenden Leitung mit einem benachbarten Bauteil
EP2154411B1 (fr) 2008-07-29 2011-11-02 KE-KELIT Kunststoffwerk Gesellschaft m.b.H. Dispositif de raccordement d'un tuyau en matière plastique sur un raccord de connexion
EP2804251A1 (fr) * 2013-04-24 2014-11-19 MAGNA STEYR Battery Systems GmbH & Co OG Système de batterie de véhicule

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1775504C3 (de) 1968-08-20 1974-05-09 Hansa Metallwerke Ag, 7000 Stuttgart Schlaucheinbindung, insbesondere für die Verwendung in Druckleitungen
DE29619501U1 (de) 1996-11-09 1997-01-02 Rehau Ag + Co, 95111 Rehau Kupplung für Saug- oder Druckschläuche
DE102012000491A1 (de) 2012-01-13 2013-07-18 Neoperl Gmbh Lösbare Steckverbindung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2642155A1 (fr) * 1989-01-24 1990-07-27 Valeo Thermique Moteur Sa Echangeur de chaleur a tubes colles et procede pour sa fabrication
DE19945218C1 (de) * 1999-09-21 2001-03-22 Raymond A & Cie Rohrförmiges Kupplungsteil und Verfahren zur Herstellung einer Klebeverbindung mit einer Fluidleitung
EP2154411B1 (fr) 2008-07-29 2011-11-02 KE-KELIT Kunststoffwerk Gesellschaft m.b.H. Dispositif de raccordement d'un tuyau en matière plastique sur un raccord de connexion
DE102010010765A1 (de) * 2010-03-09 2011-09-15 Eugen Forschner Gmbh Vorrichtung und Verfahren zum Verbinden einer ein Fluid führenden Leitung mit einem benachbarten Bauteil
EP2804251A1 (fr) * 2013-04-24 2014-11-19 MAGNA STEYR Battery Systems GmbH & Co OG Système de batterie de véhicule

Also Published As

Publication number Publication date
DE102020114512A1 (de) 2021-12-02
EP4158231A1 (fr) 2023-04-05

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