WO1998016769A2 - Flexible tube-nozzle connection - Google Patents
Flexible tube-nozzle connection Download PDFInfo
- Publication number
- WO1998016769A2 WO1998016769A2 PCT/EP1997/005518 EP9705518W WO9816769A2 WO 1998016769 A2 WO1998016769 A2 WO 1998016769A2 EP 9705518 W EP9705518 W EP 9705518W WO 9816769 A2 WO9816769 A2 WO 9816769A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- hose
- hose end
- connection according
- socket
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims abstract description 7
- 239000011324 bead Substances 0.000 claims description 10
- 238000005516 engineering process Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
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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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/20—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members
- F16L33/213—Undivided rings, sleeves, or like members contracted on the hose or expanded inside the hose by means of tools; Arrangements using such members only a sleeve being expanded inside the hose
-
- 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
- F16L33/003—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses comprising elements arranged in the hose walls
-
- 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
- F16L33/24—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses with parts screwed directly on or into the hose
-
- 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
- F16L33/32—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses comprising parts outside the hoses only
Definitions
- the invention relates to a nozzle-hose connection, with a nozzle and a hose to be connected or connected to the nozzle with a hose end.
- Nozzle-hose connections have been extensively known for decades, if not more than a century, in many industrial areas, in the household and commercial sector, in particular also in the field of motor vehicle technology.
- the household and commercial sector include e.g. B. dishwashers, washing machines and cleaning machines of other types, which have extensive nozzle-hose connections.
- nozzle-hose connections are required extensively in order to lead liquids of different types, namely fuel, cooling water, brake fluid, etc., to and from the corresponding units.
- socket-hose connections for a long time, which are characterized in that the hose end is plugged onto the corresponding socket and is held there by a spring element which surrounds the hose end, in particular a spring band clamp (cf.
- CONFIRMATION K0P1E the task of specifying a nozzle-hose connection which is free from the disadvantages with which the nozzle-hose connections known in the prior art, ie nozzle-hose connections, in which the hose end is plugged onto the nozzle, are connected.
- the socket-hose connection according to the invention is initially and essentially characterized in that the hose end is arranged within the socket, that is to say is inserted into the socket.
- Pipe-hose connections may have always been carried out in the manner described in the introduction, that is to say with a hose end plugged onto the socket or with a socket arranged inside the hose end, because it was believed that only when the hose end was open the connector is attached, you can adequately fasten the hose end on the connector. This does not take into account the fact that connection-hose connections are "under pressure" during operation.
- This operational "negative pressure” means that the hose end arranged according to the invention within the socket - due to the internal pressure and also because the hose end, as a rule the hose as a whole, is elastic - presses against the socket surrounding the hose end, so that the required seal between the hose end and the nozzle and also the required fixation of the hose end in the nozzle is easily ensured.
- nozzle-hose connections according to the invention can also be used at operating pressures at which nozzle-hose connections with spring band clamps known in the prior art can no longer be used.
- nozzle-hose connections with spring band clamps for operating pressures up to a maximum of 7 bar are used, while nozzle-hose connections according to the invention can easily be used at not insignificantly higher operating pressures.
- connection piece-hose connections In the nozzle-hose connections known in the prior art, the nozzle must be accessible for attaching the hose end; the nozzle must therefore with respect to the corresponding unit to which it belongs, for. B. in relation to a radiator in a motor vehicle, "external".
- connection piece-hose connections according to the invention the connection piece can be “inside”, that is to say it can be arranged within the corresponding unit; the end of the nozzle then closes regularly flush with the outer contour of the corresponding unit.
- This embodiment has the considerable advantage that the dimensions can be reduced.
- connection piece according to the invention the hose end must be kept within the connection piece in the unpressurized state. This can be done in different ways.
- the hose end can be held within the socket in the unpressurized state in that a press fit is realized between the hose end and the socket.
- the elasticity of the hose end makes it possible, even in the case of a press fit, namely in an embodiment in which the outer diameter of the hose end is slightly larger than the inner diameter of the socket, to simply insert the hose end into the socket.
- connection piece-hose connections known in the prior art
- the connection piece is generally provided with an external bead which is used to fix the attached hose end is used.
- the nozzle is expediently provided with an inner bead which serves to fix the inserted hose end.
- Such a bead can also be realized in that the socket has an internal groove and an O-ring is inserted into this groove. Regardless of how the bead is realized, it may be advisable to provide the hose end with an external groove corresponding to the inside bead of the socket.
- connection piece has an internal thread and the hose end has an external thread corresponding to the internal thread of the connection piece are provided, wherein preferably the internal thread of the socket and the external thread of the hose end have a relatively large pitch, namely as large a pitch as is normally not common for threads.
- the hose end which is plugged onto the nozzle is often fixed on the nozzle with a spring element which surrounds the hose end.
- the hose end in the unpressurized state can preferably be held within the socket in that the hose end is provided with a preferably internal spring element, wherein the spring element can preferably be designed as a spring band clamp.
- the spring element be “pre-tensioned” and “self-expanding” after insertion and / or by inserting the hose end into the nozzle.
- Preloaded means an embodiment in which the spring element is delivered from the factory with an outer diameter that is slightly smaller than the outer diameter in the operating state.
- Self-expanding means that the initially “preloaded” spring element automatically reaches the operating state after insertion and / or through the insertion of the hose end into the connecting piece, that is to say the one initially given to the spring element "Preload” is released automatically. This can in particular be implemented in such a way that an initially existing, “pre-tensioning" locking of locking elements of the spring element is released when the hose end is inserted into the socket, in particular in that the spring element interacts with an inner bead of the socket.
- connection piece-hose connection In the nozzle-hose connections known in the prior art, the nozzle often has a relatively large wall thickness. Starting from such a relatively large wall thickness, in the connection piece-hose connection according to the invention the connection piece can have a “reduced” wall thickness.
- the invention relates not only to the nozzle-hose connection described in detail above. Rather, the subject of the invention is, on the one hand, a connection piece for such a connection piece-hose connection, and on the other hand, a hose with a hose end for such a connection piece-hose connection.
- FIG. 1 shows a first embodiment of a nozzle according to the invention
- FIG. 2 shows a second embodiment of a nozzle according to the invention
- Hose connection, 3 shows a third embodiment of a nozzle according to the invention
- FIG. 4 shows a fourth embodiment of a nozzle according to the invention
- FIG. 5 shows a fifth embodiment of a nozzle according to the invention
- nozzle-hose connections shown in the figures each include a nozzle 1 and a hose 3 to be connected or connected to the nozzle 1 with a hose end 2.
- the hose end 2 is arranged within the connector 1, that is, the hose end 2 is inserted into the connector 1.
- the nozzle For the nozzle-hose connections known in the prior art, the nozzle must be accessible for attaching the hose end.
- the nozzle is thus in the prior art with respect to the corresponding unit to which it belongs, for. B. with respect to a radiator in a motor vehicle, "outside".
- FIG. 2 in the nozzle-hose connector according to the invention, Connection of the nozzle 1 to be "inside", that is, to be arranged within the corresponding unit 4.
- the end of the nozzle 1 is flush with the outer contour of the corresponding unit 4.
- a comparison of the exemplary embodiment according to FIG. 2 with the exemplary embodiments according to FIGS. 1, 3 and 4 shows that the embodiment "internal" connector 1 has the considerable advantage that the dimensions can be reduced.
- the connecting piece 1 is preferably provided with an internal bead 5.
- the hose end 2 is provided with an outer groove 6 corresponding to the bead 5 of the connector 1.
- the socket 1 is provided with an internal groove 10 and an O-ring 11 is inserted into the groove 10.
- the socket 1 is provided with an internal thread 7 and the hose end 2 with an internal thread 7 corresponding to the internal thread 7 of the connector 1, the internal thread 7 of the connector 1 and the external thread 8 of the hose end 2 being one have a relatively large slope.
- the hose end 2 is provided with a spring element 9.
- the spring element 9 is designed as a spring band clamp.
- the spring element 9 is “pre-tensioned” and, after insertion and / or by inserting the hose end 2 into the socket 1, “self-expanding”. 5 that in this embodiment the spring element 9 is "integrated” into the hose end 2.
- connection piece-hose connection described in detail.
- subject of the invention is also the connector 1 for a connector-hose connection according to the invention, fertilizer and the hose 3 with a hose end 2 for such a connector-hose connection.
- connection piece-hose connections in the narrower sense
- teaching according to the invention can also be applied "in a broader sense” also in connection piece-hose connections, in particular also, for. B. with so-called quick couplings of any kind.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
- Nozzles (AREA)
Abstract
Description
STUTZEN-SCHLAUCH-VERBINDUNG NOZZLE-HOSE CONNECTION
Die Erfindung betrifft eine Stutzen-Schlauch-Verbindung, mit einem Stutzen und einem mit einem Schlauchende an den Stutzen anzuschließenden bzw. angeschlossenen Schlauch.The invention relates to a nozzle-hose connection, with a nozzle and a hose to be connected or connected to the nozzle with a hose end.
Stutzen-Schlauch-Verbindungen sind seit Jahrzehnten, wenn nicht bereits seit mehr als einem Jahrhundert, umfangreich bekannt, und zwar in vielen industriellen Bereichen, im Bereich von Haushalt und Gewerbe, insbesondere auch im Bereich der Kraftfahrzeugtechnik. Zum Bereich von Haushalt und Gewerbe gehören z. B. Spülmaschinen, Waschmaschinen und Reinigungsmaschinen anderer Art, die umfangreich Stutzen-Schlauch-Verbindungen aufweisen. Im Bereich der Kraftfahrzeugtechnik werden Stutzen-Schlauch-Verbindungen umfangreich benötigt, um Flüssigkeiten unterschiedlicher Art, nämlich Kraftstoff, Kühlwasser, Bremsflüssigkeit usw., von und zu den entsprechenden Aggregaten zu führen.Nozzle-hose connections have been extensively known for decades, if not more than a century, in many industrial areas, in the household and commercial sector, in particular also in the field of motor vehicle technology. The household and commercial sector include e.g. B. dishwashers, washing machines and cleaning machines of other types, which have extensive nozzle-hose connections. In the field of motor vehicle technology, nozzle-hose connections are required extensively in order to lead liquids of different types, namely fuel, cooling water, brake fluid, etc., to and from the corresponding units.
Insbesondere im Bereich der Kraftfahrzeugtechnik gibt es seit längerer Zeit Stutzen- Schlauch- Verbindungen, die dadurch gekennzeichnet sind, daß das Schlauchende auf den entsprechenden Stutzen gesteckt und dort durch ein das Schlauchende umfassendes Federelement, insbesondere eine Federbandschelle, gehalten ist (vgl. die Druckschriften DE-PS 10 764 (aus 1930), die DE- AS 1 228 473, die DE 30 10 424 AI , die DE 30 18 353 AI , die DE 30 18 383 C2, die DE 30 41 106 C2, die DE 31 05 125 AI, die DE 32 10 734 AI, die DE 33 43 501 Cl, die DE 35 43 717 C2, die DE 36 33 486 Cl, die DE 38 32 875 Cϊ, die DE 43 05 649 C2, die DE 43 12 846 Cl, die DE 44 18 763 Cl, die DE 44 24 046 AI, die DE 44 41 439 C2 und die DE 44 45 714 AI).In the field of motor vehicle technology, in particular, there have been socket-hose connections for a long time, which are characterized in that the hose end is plugged onto the corresponding socket and is held there by a spring element which surrounds the hose end, in particular a spring band clamp (cf. documents DE PS 10 764 (from 1930), DE-AS 1 228 473, DE 30 10 424 AI, DE 30 18 353 AI, DE 30 18 383 C2, DE 30 41 106 C2, DE 31 05 125 AI, DE 32 10 734 AI, DE 33 43 501 Cl, DE 35 43 717 C2, DE 36 33 486 Cl, DE 38 32 875 Cϊ, DE 43 05 649 C2, DE 43 12 846 Cl , DE 44 18 763 Cl, DE 44 24 046 AI, DE 44 41 439 C2 and DE 44 45 714 AI).
Allen bekannten Stutzen-Schlauch-Verbindungen der in Rede stehenden Art ist gemeinsam, daß das Schlauchende auf den Stutzen gesteckt, der Stutzen also innerhalb des Schlauchendes angeordnet ist. Das ist bisher wohl, aus welchen Gründen auch immer, als einzige praktikable Möglichkeit gesehen worden, einen Schlauch an einen Stutzen anzuschließen.It is common to all known nozzle-hose connections of the type in question that the hose end is plugged onto the nozzle, that is, the nozzle is arranged inside the hose end. So far, for whatever reason, this has been seen as the only practicable way of connecting a hose to a nozzle.
Erfindungsgemäß ist nun erkannt worden, daß die im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen zumindest bei einer Mehrzahl von Anwendungsfällen mit nicht unerheblichen Nachteilen verbunden sind. Folglich liegt der ErfindungAccording to the invention, it has now been recognized that the nozzle-hose connections known in the prior art are associated with not inconsiderable disadvantages, at least in a plurality of applications. Hence the invention lies
BESTÄTIGUNGSK0P1E die Aufgabe zugrunde, eine Stutzen-Schlauch-Verbindung anzugeben, die von den Nachteilen frei ist, mit denen die im Stand der Technik bekannten Stutzen-Schlauch- Verbindungen, also Stutzen-Schlauch-Verbindungen, bei denen das Schlauchende auf den Stutzen aufgesteckt ist, verbunden sind.CONFIRMATION K0P1E the task of specifying a nozzle-hose connection which is free from the disadvantages with which the nozzle-hose connections known in the prior art, ie nozzle-hose connections, in which the hose end is plugged onto the nozzle, are connected.
Die erfindungsgemäße Stutzen-Schlauch-Verbindung ist zunächst und im wesentlichen dadurch gekennzeichnet, daß das Schlauchende innerhalb des Stutzens angeordnet ist, also in den Stutzen eingesteckt ist.The socket-hose connection according to the invention is initially and essentially characterized in that the hose end is arranged within the socket, that is to say is inserted into the socket.
Möglicherweise sind im Stand der Technik Stutzen-Schlauch-Verbindungen stets in der einleitend beschriebenen Weise ausgeführt worden, also mit auf den Stutzen aufgestecktem Schlauchende bzw. mit innerhalb des Schlauchendes angeordnetem Stutzen, weil man der Auffassung gewesen ist, nur dann, wenn das Schlauchende auf den Stutzen aufgesteckt ist, könne man das Schlauchende auf dem Stutzen hinreichend befestigen. Dabei ist unberücksichtigt geblieben, daß Stutzen-Schlauch-Verbindungen betriebsmäßig "unter Druck stehen". Dieses betriebsmäßige "Unterdruckstehen" führt dazu, daß sich das erfindungsgemäß innerhalb des Stutzens angeordnete Schlauchende - durch den innen herrschenden Druck und auch weil das Schlauchende, wie in der Regel der Schlauch insgesamt, elastisch ist - unter Druck an den das Schlauchende umgebenden Stutzen anlegt, so daß damit ohne weiteres die erforderliche Abdichtung zwischen dem Schlauchende und dem Stutzen und die ebenfalls erforderliche Fixierung des Schlauchendes im Stutzen gewährleistet ist. Überraschenderweise ist nun festgestellt worden, daß erfindungsgemäße Stutzen- Schlauch-Verbindungen auch bei Betriebsdrücken eingesetzt werden können, bei denen im Stand der Technik bekannte Stutzen-Schlauch-Verbindungen mit Federbandschellen nicht mehr verwendet werden können. Tatsächlich werden im Stand der Technik bekannte Stutzen-Schlauch-Verbindungen mit Federbandschellen für Betriebsdrücke bis maximal 7 bar eingesetzt, während erfindungsgemäße Stutzen- Schlauch-Verbindungen ohne weiteres bei nicht unwesentlich höheren Betriebsdrücken eingesetzt werden können, im Bereich der Kraftfahrzeugtechnik z. B. für Hydraulikflüssigkeiten, wie sie für Servolenkungen eingesetzt werden.Pipe-hose connections may have always been carried out in the manner described in the introduction, that is to say with a hose end plugged onto the socket or with a socket arranged inside the hose end, because it was believed that only when the hose end was open the connector is attached, you can adequately fasten the hose end on the connector. This does not take into account the fact that connection-hose connections are "under pressure" during operation. This operational "negative pressure" means that the hose end arranged according to the invention within the socket - due to the internal pressure and also because the hose end, as a rule the hose as a whole, is elastic - presses against the socket surrounding the hose end, so that the required seal between the hose end and the nozzle and also the required fixation of the hose end in the nozzle is easily ensured. Surprisingly, it has now been found that nozzle-hose connections according to the invention can also be used at operating pressures at which nozzle-hose connections with spring band clamps known in the prior art can no longer be used. In fact, known in the prior art nozzle-hose connections with spring band clamps for operating pressures up to a maximum of 7 bar are used, while nozzle-hose connections according to the invention can easily be used at not insignificantly higher operating pressures. B. for hydraulic fluids, such as those used for power steering systems.
Zuvor ist im einzelnen erläutert worden, daß bei der erfindungsgemäßen Stutzen- Schlauch-Verbindung die notwendige Abdichtung zwischen dem Schlauchende und dem Stutzen und die Fixierung des Schlauchendes am Stutzen wesentlich durch den innerhalb des Schlauches herrschenden Druck realisiert ist. Bei der erfindungsgemäßen Stutzen-Schlauch-Verbindung muß natürlich dafür gesorgt werden, daß das Schlauchende im drucklosen Zustand innerhalb des Stutzens gehalten ist; das kann kraft- und/oder form- und/oder materialschlüssig realisiert sein.It has previously been explained in detail that in the connecting piece-hose connection according to the invention the necessary seal between the hose end and the nozzle and the fixation of the hose end on the nozzle is essentially realized by the pressure prevailing within the hose. With the nozzle-hose connection according to the invention, it must of course be ensured that the hose end is held in the unpressurized state within the nozzle; this can be realized in a force-fitting and / or form-fitting and / or material-locking manner.
Im einzelnen gibt es verschiedene Möglichkeiten, die erfindungsgemäße Stutzen- Schlauch-Verbindung auszugestalten und weiterzubilden, was im folgenden nur beispielhaft erläutert werden soll.In particular, there are various options for designing and developing the nozzle-hose connection according to the invention, which will be explained below by way of example only.
Bei den im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen muß der Stutzen für das Aufstecken des Schlauchendes zugänglich sein; der Stutzen muß also in bezug auf das entsprechende Aggregat, zu dem er gehört, z. B. in bezug auf einen Kühler in einem Kraftfahrzeug, "außenliegend" ausgeführt sein. Demgegenüber kann bei den erfindungsgemäßen Stutzen-Schlauch-Verbindungen der Stutzen "innenliegend" ausgeführt sein, also innerhalb des entsprechenden Aggregats angeordnet sein; das Ende des Stutzens schließt dann regelmäßig bündig mit der Außenkontur des entsprechenden Aggregats ab. Diese Ausführungsform hat den erheblichen Vorteil, daß die Baumaße reduziert werden können.In the nozzle-hose connections known in the prior art, the nozzle must be accessible for attaching the hose end; the nozzle must therefore with respect to the corresponding unit to which it belongs, for. B. in relation to a radiator in a motor vehicle, "external". In contrast, in the connection piece-hose connections according to the invention, the connection piece can be “inside”, that is to say it can be arranged within the corresponding unit; the end of the nozzle then closes regularly flush with the outer contour of the corresponding unit. This embodiment has the considerable advantage that the dimensions can be reduced.
Zuvor ist ausgeführt worden, daß bei der erfindungsgemäßen Stutzen-Schlauch-Ver- bindung das Schlauchende im drucklosen Zustand innerhalb des Stutzens gehalten sein muß. Das kann in unterschiedlicher Weise realisiert sein.It has previously been stated that in the connection piece according to the invention the hose end must be kept within the connection piece in the unpressurized state. This can be done in different ways.
Bei der erfindungsgemäßen Stutzen-Schlauch- Verbindung kann das Schlauchende schon dadurch im drucklosen Zustand innerhalb des Stutzens gehalten sein, daß zwischen dem Schlauchende und dem Stutzen ein Preßsitz realisiert ist. Die Elastizität des Schlauchendes ermöglicht es auch bei einem Preßsitz, nämlich bei einer Ausführungsform, bei der der Außendurchmesser des Schlauchendes geringfügig größer ist als der Innendurchmesser des Stutzens, das Schlauchende einfach in den Stutzen einzustecken.In the socket-hose connection according to the invention, the hose end can be held within the socket in the unpressurized state in that a press fit is realized between the hose end and the socket. The elasticity of the hose end makes it possible, even in the case of a press fit, namely in an embodiment in which the outer diameter of the hose end is slightly larger than the inner diameter of the socket, to simply insert the hose end into the socket.
Bei den im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen ist in der Regel der Stutzen mit einem außenliegenden Wulst versehen, der der Fixierung des aufgesteckten Schlauchendes dient. Zweckmäßigerweise wird bei der erfindungsgemäßen Stutzen-Schlauch-Verbindung der Stutzen mit einem innenliegenden, der Fixierung des eingesteckten Schlauchendes dienenden Wulst versehen. Eine solche- Wulst kann auch dadurch realisiert sein, daß der Stutzen eine innenliegende Nut aufweist und in diese Nut ein O-Ring eingelegt ist. Unabhängig davon, wie die Wulst realisiert ist, kann es sich empfehlen, das Schlauchende mit einer der innenliegenden Wulst des Stutzens entsprechenden außenliegenden Nut zu versehen.In the connection piece-hose connections known in the prior art, the connection piece is generally provided with an external bead which is used to fix the attached hose end is used. In the case of the nozzle-hose connection according to the invention, the nozzle is expediently provided with an inner bead which serves to fix the inserted hose end. Such a bead can also be realized in that the socket has an internal groove and an O-ring is inserted into this groove. Regardless of how the bead is realized, it may be advisable to provide the hose end with an external groove corresponding to the inside bead of the socket.
In bezug auf die Notwendigkeit, bei der erfindungsgemäßen Stutzen-Schlauch- Verbindung das Schlauchende im drucklosen Zustand innerhalb des Stutzens zu halten, ist eine andere bevorzugte Ausführungsform dadurch gekennzeichnet, daß der Stutzen mit einem Innengewinde und das Schlauchende mit einem dem Innengewinde des Stutzens entsprechenden Außengewinde versehen sind, wobei vorzugsweise das Innengewinde des Stutzens und das Außengewinde des Schlauchendes eine relativ große Steigung haben, und zwar eine so große Steigung, wie sie normalerweise bei Gewinden nicht üblich ist.With regard to the need to keep the hose end in the unpressurized state within the connection piece in the connection piece according to the invention, another preferred embodiment is characterized in that the connection piece has an internal thread and the hose end has an external thread corresponding to the internal thread of the connection piece are provided, wherein preferably the internal thread of the socket and the external thread of the hose end have a relatively large pitch, namely as large a pitch as is normally not common for threads.
Einleitend ist ausgeführt, daß bei den im Stand der Technik bekannten Stutzen- Schlauch-Verbindungen häufig das auf den Stutzen aufgesteckte Schlauchende mit einem das Schlauchende umfassenden Federelement auf dem Stutzen fixiert ist. Bei der erfindungsgemäßen Stutzen-Schlauch-Verbindung kann das Schlauchende im drucklosen Zustand vorzugsweise dadurch innerhalb des Stutzens gehalten sein, daß das Schlauchende mit einem vorzugsweise innenliegenden Federelement versehen ist, wobei das Federelement vorzugsweise als Federbandschelle ausgeführt sein kann.In the introduction it is stated that in the case of the nozzle-hose connections known in the prior art, the hose end which is plugged onto the nozzle is often fixed on the nozzle with a spring element which surrounds the hose end. In the socket-hose connection according to the invention, the hose end in the unpressurized state can preferably be held within the socket in that the hose end is provided with a preferably internal spring element, wherein the spring element can preferably be designed as a spring band clamp.
Bei der zuletzt beschriebenen bevorzugten Ausführungsform einer erfindungsgemäßen Stutzen-Schlauch-Verbindung empfiehlt es sich, das Federelement "vorgespannt" und nach dem Einführen und/oder durch das Einführen des Schlauchendes in den Stutzen "selbstspreizend" auszuführen. "Vorgespannt" meint dabei eine Ausführungsform, bei der das Federelement werksseitig mit einem Außendurchmesser geliefert wird, der etwas kleiner ist als der Außendurchmesser im Betriebszustand. "Selbstspreizend" meint, daß das zunächst "vorgespannte" Federelement nach dem Einführen und/oder durch das Einführen des Schlauchendes in den Stutzen selbsttätig den Betriebszustand erreicht, also die zunächst dem Federelement mitgegebene "Vorspannung" selbsttätig aufgehoben wird. Das kann insbesondere so realisiert sein, daß eine zunächst vorhandene, die "Vorspannung" realisierende Verrastung von Ver- rastungselementen des Federelements beim Einführen des Schlauchendes in den Stutzen gelöst wird, insbesondere dadurch, daß das Federelement mit einem innenliegenden Wulst des Stutzens zusammenwirkt.In the last-described preferred embodiment of a nozzle-hose connection according to the invention, it is recommended that the spring element be “pre-tensioned” and “self-expanding” after insertion and / or by inserting the hose end into the nozzle. "Preloaded" means an embodiment in which the spring element is delivered from the factory with an outer diameter that is slightly smaller than the outer diameter in the operating state. "Self-expanding" means that the initially "preloaded" spring element automatically reaches the operating state after insertion and / or through the insertion of the hose end into the connecting piece, that is to say the one initially given to the spring element "Preload" is released automatically. This can in particular be implemented in such a way that an initially existing, "pre-tensioning" locking of locking elements of the spring element is released when the hose end is inserted into the socket, in particular in that the spring element interacts with an inner bead of the socket.
Für die im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen kennt man bereits Schlauchenden mit einem "integrierten" Federelement, insbesondere mit einer "integrierten" Federbandschelle (vgl. die DE 35 43 717 C2). Eine solche Realisierung des Federelementes, also "Integration" des Federelementes in das Schlauchende, empfiehlt sich in besonderer Weise für die erfindungsgemäße Stutzen-Schlauch-Verbindung.For the nozzle-hose connections known in the prior art, hose ends with an "integrated" spring element, in particular with an "integrated" spring band clamp, are already known (cf. DE 35 43 717 C2). Such a realization of the spring element, ie "integration" of the spring element into the hose end, is particularly recommended for the nozzle-hose connection according to the invention.
Bei den im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen hat der Stutzen häufig eine relativ große Wandstärke. Von einer solchen relativ großen Wandstärke ausgehend, kann bei der erfindungsgemäßen Stutzen-Schlauch-Verbindung der Stutzen eine "reduzierte" Wandstärke aufweisen.In the nozzle-hose connections known in the prior art, the nozzle often has a relatively large wall thickness. Starting from such a relatively large wall thickness, in the connection piece-hose connection according to the invention the connection piece can have a “reduced” wall thickness.
Die Erfindung betrifft nicht nur die zuvor im einzelnen beschriebene Stutzen- Schlauch- Verbindung. Gegenstand der Erfindung sind vielmehr auch einerseits ein Stutzen für eine solche Stutzen-Schlauch-Verbindung, andererseits ein Schlauch mit einem Schlauchende für eine solche Stutzen-Schlauch- Verbindung.The invention relates not only to the nozzle-hose connection described in detail above. Rather, the subject of the invention is, on the one hand, a connection piece for such a connection piece-hose connection, and on the other hand, a hose with a hose end for such a connection piece-hose connection.
Im folgenden wird die erfindungsgemäße Stutzen-Schlauch-Verbindung und werden bevorzugte Ausführungsformen der erfindungsgemäßen Stutzen-Schlauch-Verbindungen in Verbindung mit der Zeichnung nochmals erläutert. In der Zeichnung zeigt, jeweils in einem Längsschnitt,In the following the nozzle-hose connection according to the invention and preferred embodiments of the nozzle-hose connections according to the invention are explained again in connection with the drawing. In the drawing, in each case in a longitudinal section,
Fig. 1 ein erstes Ausführungsbeispiel einer erfindungsgemäßen Stutzen-1 shows a first embodiment of a nozzle according to the invention
Schlauch-Verbindung,Hose connection,
Fig. 2 ein zweites Ausführungsbeispiel einer erfindungsgemäßen Stutzen-2 shows a second embodiment of a nozzle according to the invention
Schlauch-Verbindung, Fig. 3 ein drittes Ausführungsbeispiel einer erfindungsgemäßen Stutzen-Hose connection, 3 shows a third embodiment of a nozzle according to the invention
Schlauch-Verbindung,Hose connection,
Fig. 4 ein viertes Ausführungsbeispiel einer erfindungsgemäßen Stutzen-4 shows a fourth embodiment of a nozzle according to the invention
Schlauch- Verbindung undHose connection and
Fig. 5 ein fünftes Ausführungsbeispiel einer erfindungsgemäßen Stutzen-5 shows a fifth embodiment of a nozzle according to the invention
Schlauch-Verbindung.Hose connection.
Zu den in den Figuren dargestellten Stutzen-Schlauch-Verbindungen gehören jeweils ein Stutzen 1 und ein mit einem Schlauchende 2 an den Stutzen 1 anzuschließender bzw. angeschlossener Schlauch 3.The nozzle-hose connections shown in the figures each include a nozzle 1 and a hose 3 to be connected or connected to the nozzle 1 with a hose end 2.
Erfindungsgemäß ist, wie alle Figuren zeigen, das Schlauchende 2 innerhalb des Stutzens 1 angeordnet, das Schlauchende 2 also in den Stutzen 1 eingesteckt.According to the invention, as shown in all the figures, the hose end 2 is arranged within the connector 1, that is, the hose end 2 is inserted into the connector 1.
Für Stutzen-Schlauch-Verbindungen gilt, daß sie betriebsmäßig "unter Druck stehen". Das führt dazu, daß sich das erfindungsgemäß innerhalb des Stutzens 1 angeordnete Schlauchende 2 - durch den innen herrschenden Druck und auch weil das Schlauchende 2, wie in der Regel der Schlauch 3 insgesamt, elastisch ist - unter Druck an den das Schlauchende 2 umgebenden Stutzen 1 anlegt. Damit ist dann ohne weiteres die erforderliche Abdichtung zwischen dem Schlauchende 2 und dem Stutzen 1 und die ebenfalls erforderliche Fixierung des Schlauchendes 2 im Stutzen 1 gewährleistet.For nozzle-hose connections it applies that they are "under pressure" during operation. The result of this is that the hose end 2 arranged according to the invention within the socket 1 - due to the internal pressure and also because the hose end 2, as a rule the hose 3 as a whole, is elastic - under pressure to the socket 1 surrounding the hose end 2 creates. The required seal between the hose end 2 and the socket 1 and the likewise necessary fixing of the hose end 2 in the socket 1 are then ensured without further ado.
Bei der erfindungsgemäßen Stutzen-Schlauch- Verbindung muß dafür gesorgt werden, daß das Schlauchende 2 im drucklosen Zustand innerhalb des Stutzens 1 gehalten ist; das kann kraft- und/oder form- und/oder materialschlüssig realisiert sein.In the nozzle-hose connection according to the invention, it must be ensured that the hose end 2 is held within the nozzle 1 in the unpressurized state; this can be realized in a force-fitting and / or form-fitting and / or material-locking manner.
Für die im Stand der Technik bekannten Stutzen-Schlauch-Verbindungen gilt, daß der Stutzen für das Aufstecken des Schlauchendes zugänglich sein muß. Der Stutzen ist also im Stand der Technik in bezug auf das entsprechende Aggregat, zu dem er gehört, z. B. in bezug auf einen Kühler in einem Kraftfahrzeug, "außenliegend" ausgeführt. Wie nun die Fig. 2 zeigt, kann bei der erfindungsgemäßen Stutzen-Schlauch- Verbindung der Stutzen 1 "innenliegend" ausgeführt sein, also innerhalb des entsprechenden Aggregats 4 angeordnet sein. Wie die Fig. 2 zeigt, schließt das Ende des Stutzens 1 bündig mit der Außenkontur des entsprechenden Aggregats 4 ab. Ein Vergleich des Ausführungsbeispiels nach Fig. 2 mit den Ausführungsbeispielen nach den Fig. 1 , 3 und 4 zeigt, daß die Ausführungsform "innenliegender" Stutzen 1 den erheblichen Vorteil hat, daß die Baumaße reduziert werden können.For the nozzle-hose connections known in the prior art, the nozzle must be accessible for attaching the hose end. The nozzle is thus in the prior art with respect to the corresponding unit to which it belongs, for. B. with respect to a radiator in a motor vehicle, "outside". As shown in FIG. 2, in the nozzle-hose connector according to the invention, Connection of the nozzle 1 to be "inside", that is, to be arranged within the corresponding unit 4. As shown in FIG. 2, the end of the nozzle 1 is flush with the outer contour of the corresponding unit 4. A comparison of the exemplary embodiment according to FIG. 2 with the exemplary embodiments according to FIGS. 1, 3 and 4 shows that the embodiment "internal" connector 1 has the considerable advantage that the dimensions can be reduced.
Bei der erfindungsgemäßen Stutzen-Schlauch-Verbindung ist vorzugsweise, wie das die Fig. 2 und 5 zeigen, der Stutzen 1 mit einem innenliegenden Wulst 5 versehen. Im Ausführungsbeispiel nach Fig. 2 ist das Schlauchende 2 mit einer der Wulst 5 des Stutzens 1 entsprechenden außenliegenden Nut 6 versehen. Im Ausführungsbeispiel nach Fig. 4 ist statt der Wulst 5 gemäß den Ausführungsbeispielen nach den Fig. 2 und 5 der Stutzen 1 mit einer innenliegenden Nut 10 versehen und ist in die Nut 10 ein O-Ring 11 eingelegt.In the connecting piece-hose connection according to the invention, as shown in FIGS. 2 and 5, the connecting piece 1 is preferably provided with an internal bead 5. In the exemplary embodiment according to FIG. 2, the hose end 2 is provided with an outer groove 6 corresponding to the bead 5 of the connector 1. In the exemplary embodiment according to FIG. 4, instead of the bead 5 according to the exemplary embodiments according to FIGS. 2 and 5, the socket 1 is provided with an internal groove 10 and an O-ring 11 is inserted into the groove 10.
Für das Ausführungsbeispiel nach Fig. 3 gilt, daß der Stutzen 1 mit einem Innengewinde 7 und das Schlauchende 2 mit einem dem Innengewinde 7 des Stutzens 1 entsprechenden Außengewinde 8 versehen sind, wobei das Innengewinde 7 des Stutzens 1 und das Außengewinde 8 des Schlauchendes 2 eine relativ große Steigung haben.3 applies that the socket 1 is provided with an internal thread 7 and the hose end 2 with an internal thread 7 corresponding to the internal thread 7 of the connector 1, the internal thread 7 of the connector 1 and the external thread 8 of the hose end 2 being one have a relatively large slope.
In den Fig. 4 und 5 sind Ausführungsbeispiele erfindungsgemäßer Stutzen-Schlauch- Verbindungen dargestellt, die dadurch gekennzeichnet sind, daß das Schlauchende 2 mit einem Federelement 9 versehen ist. Nur angedeutet ist, daß das Federelement 9 als Federbandschelle ausgeführt ist. Vorzugsweise ist, wie das weiter oben im einzelnen erläutert worden ist, das Federelement 9 "vorgespannt" und nach dem Einführen und/oder durch das Einführen des Schlauchendes 2 in den Stutzen 1 "selbstspreizend" ausgeführt. Im übrigen ist der Fig. 5 zu entnehmen, daß bei diesem Ausführungsbeispiel das Federlement 9 in das Schlauchende 2 "integriert" ist. Dazu, wie die "Integration" eines Federelementes in einem Schlauchende im einzelnen realisiert werden kann, wird zur Vermeidung von Wiederholungen auf die DE 35 43 717 C2 verwiesen, deren Offenbarungsgehalt ausdrücklich auch hier zum Offenbarungsgehalt gemacht wird. Es sei noch darauf hingewiesen, daß Gegenstand der Erfindung nicht nur die im einzelnen beschriebene Stutzen-Schlauch-Verbindung ist. Vielmehr sind Gegenstand der Erfindung auch der Stutzen 1 für eine erfindungsgemäße Stutzen-Schlauch-Verbin- , düng und der Schlauch 3 mit einem Schlauchende 2 für eine solche Stutzen- Schlauch-Verbindung.4 and 5 show exemplary embodiments of connecting piece-hose connections according to the invention, which are characterized in that the hose end 2 is provided with a spring element 9. It is only indicated that the spring element 9 is designed as a spring band clamp. Preferably, as has been explained in detail above, the spring element 9 is “pre-tensioned” and, after insertion and / or by inserting the hose end 2 into the socket 1, “self-expanding”. 5 that in this embodiment the spring element 9 is "integrated" into the hose end 2. Regarding how the "integration" of a spring element in a hose end can be implemented in detail, reference is made to DE 35 43 717 C2 to avoid repetitions, the disclosure content of which is expressly made the disclosure content here as well. It should also be pointed out that the object of the invention is not only the connection piece-hose connection described in detail. Rather, the subject of the invention is also the connector 1 for a connector-hose connection according to the invention, fertilizer and the hose 3 with a hose end 2 for such a connector-hose connection.
Bisher ist die Lehre der Erfindung immer nur für Stutzen-Schlauch-Verbindungen "im engeren Sinne" erläutert worden. Die erfindungsgemäße Lehre kann aber ohne weiteres auch bei Stutzen-Schlauch-Verbindungen "im weiteren Sinne" angewendet werden, insbesondere auch z. B. bei sogenannten Schnell-Kupplungen jeder Art. So far, the teaching of the invention has always been explained only for connection piece-hose connections "in the narrower sense". However, the teaching according to the invention can also be applied "in a broader sense" also in connection piece-hose connections, in particular also, for. B. with so-called quick couplings of any kind.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996142580 DE19642580A1 (en) | 1996-10-15 | 1996-10-15 | Connector-hose connection |
| DE19642580.8 | 1996-10-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1998016769A2 true WO1998016769A2 (en) | 1998-04-23 |
| WO1998016769A3 WO1998016769A3 (en) | 1998-06-18 |
Family
ID=7808848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1997/005518 WO1998016769A2 (en) | 1996-10-15 | 1997-10-08 | Flexible tube-nozzle connection |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE19642580A1 (en) |
| WO (1) | WO1998016769A2 (en) |
Cited By (2)
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| WO2007022950A3 (en) * | 2005-08-24 | 2007-05-18 | Westfaliasurge Gmbh | Fluid-tight flexible tube connection for use in milking technology and tube, especially milk tube and pulsator tube |
| DE102006006211B3 (en) * | 2006-02-09 | 2007-09-20 | Rehau Ag + Co | Assembly for conducting and tempering a urea-water solution and method for the production thereof |
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|---|---|---|---|---|
| GB0019882D0 (en) * | 2000-08-11 | 2000-09-27 | Thermopol Limited | A hose and pipe coupling arrangement |
| DE10332085A1 (en) * | 2003-07-15 | 2004-08-05 | Siemens Ag | Hose connection for liquid flow distributor to feed liquid to cooling circuits of especially gradient coils of MRI-scanner has hose fitted into sleeve and by outer surface sealed against inner surface of sleeve |
| SE526730C2 (en) | 2003-12-17 | 2005-11-01 | Volvo Lastvagnar Ab | Connection for connecting a hose to a rigid pipe connection |
| US11391398B2 (en) | 2019-02-27 | 2022-07-19 | Delphi Technologies Ip Limited | Fuel system including reinforced fuel connector with retaining rings |
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| DE76250C (en) * | A. POHL in Freienwalde a. O | Hose connection with seal by internal fluid pressure | ||
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| DE1080364B (en) * | 1956-03-09 | 1960-04-21 | Interowa Fuerer Haimendorf Kom | Fastening a line made of elastic material in a connection sleeve |
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| FR1542634A (en) * | 1967-08-08 | 1968-10-18 | Legris Fils | Improvements to fittings for semi-rigid and elastic pipes |
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| DE3041106C2 (en) * | 1980-10-31 | 1985-09-12 | Gemi Metallwarenfabrik Gustav Henning KG, 3538 Marsberg | Clamp made of elastic material |
| DE3105125A1 (en) * | 1981-02-12 | 1982-09-23 | Kato Hatsujyo Co., Ltd., Yokohama, Kanagawa | Hose tie (binder) |
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| FR2630522B1 (en) * | 1988-04-21 | 1990-08-03 | Peugeot | JUNCTION DEVICE BETWEEN A FLEXIBLE CONNECTION AND A RIGID TUBULAR END OF A CIRCUIT CONTAINING A PRESSURIZED FLUID |
| DE3832875C1 (en) * | 1988-09-28 | 1989-08-24 | Fa. Muhr Und Bender, 5952 Attendorn, De | |
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| DE4305649C2 (en) * | 1993-02-25 | 1996-03-21 | Muhr & Bender | Spring band clamp |
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| DE9313141U1 (en) * | 1993-09-01 | 1994-02-03 | Eisele Pneumatik GmbH, 71332 Waiblingen | Device for connecting a hose, in particular a pneumatic hose |
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-
1996
- 1996-10-15 DE DE1996142580 patent/DE19642580A1/en not_active Withdrawn
-
1997
- 1997-10-08 WO PCT/EP1997/005518 patent/WO1998016769A2/en active Application Filing
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007022950A3 (en) * | 2005-08-24 | 2007-05-18 | Westfaliasurge Gmbh | Fluid-tight flexible tube connection for use in milking technology and tube, especially milk tube and pulsator tube |
| DE102006006211B3 (en) * | 2006-02-09 | 2007-09-20 | Rehau Ag + Co | Assembly for conducting and tempering a urea-water solution and method for the production thereof |
| US7773865B2 (en) | 2006-02-09 | 2010-08-10 | Rehau Ag & Co. | Assembly for conducting and tempering fluids and method for producing said assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19642580A1 (en) | 1998-06-04 |
| WO1998016769A3 (en) | 1998-06-18 |
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