EP1373780A1 - Plug connection - Google Patents

Plug connection

Info

Publication number
EP1373780A1
EP1373780A1 EP02732546A EP02732546A EP1373780A1 EP 1373780 A1 EP1373780 A1 EP 1373780A1 EP 02732546 A EP02732546 A EP 02732546A EP 02732546 A EP02732546 A EP 02732546A EP 1373780 A1 EP1373780 A1 EP 1373780A1
Authority
EP
European Patent Office
Prior art keywords
steel ring
pipe
plug connection
counterpart
end piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02732546A
Other languages
German (de)
French (fr)
Inventor
Guido Regener
Horst Danneberg
Stefan Sinkemat
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel 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
Priority claimed from DE10160043A external-priority patent/DE10160043B4/en
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Publication of EP1373780A1 publication Critical patent/EP1373780A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L37/00—Couplings of the quick-acting type
    • F16L37/08—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members
    • F16L37/084—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking
    • F16L37/088—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring
    • F16L37/0885—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members combined with automatic locking by means of a split elastic ring with access to the split elastic ring from a radial or tangential opening in the coupling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/10091—Air intakes; Induction systems characterised by details of intake ducts: shapes; connections; arrangements
    • F02M35/10144—Connections of intake ducts to each other or to another device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/10—Air intakes; Induction systems
    • F02M35/1034—Manufacturing and assembling intake systems
    • F02M35/10354—Joining multiple sections together

Definitions

  • the invention relates to a plug connection for the connection of a pipe section to a connection piece or counterpart, in that the counterpart is pushed over the hose line and can be locked with the aid of a securing means.
  • plug or coupling connections are used in motor vehicle construction for piping systems, for. B. suitable for sealing air ducts, charge air cooler lines and the like.
  • EP 0 488 844 and EP 0 392 234 describe a plug-in connection which essentially consists of an inner sleeve onto which the hose is pushed and an outer sleeve pushed onto the outside of the hose, the two sleeves being connected to one another at one end.
  • the inner sleeve is necessary to fix the hose, the pushed-on outer sleeve being connected to the inner sleeve by a press fit.
  • a pipe socket which carries a resilient securing means, is pushed over the outer sleeve.
  • DE 196 01 667 describes a plug-in connection without an inner sleeve, the outer sleeve being secured in position and attached to the hose without mechanical fastening means.
  • the outer sleeve is vulcanized onto the hose or vulcanized into an associated recess in the area of the wall.
  • EP 0 573 863 describes a hose connection, the end section of which is formed in one piece from the thermoplastic and a connection with the engagement element on the counterpart is achieved via a separate engagement element, the engagement elements performing movements when the components are locked and acting as a spring.
  • the disadvantage here is the high assembly and disassembly effort.
  • the invention is therefore based on the object of providing a plug connection which ensures the same good properties as the known plug connections with inner and / or outer sleeve, a connection with known standard ball couplings being possible without the assembly or disassembly being made more difficult.
  • the object is further to develop the end piece of the hose so that the use of an outer sleeve is not necessary.
  • the object is achieved in that the end piece of the tube is formed in one piece from the plastic tube in the form of a plastic part and is preferably produced in a blowing process.
  • the tube can e.g. B. can also be produced by injection molding or by rotary sintering.
  • the material must have sufficient temperature resistance and dimensional stability and the shape of the end piece must be adapted to the shape of the counterpart.
  • the plastics known for such applications are suitable, provided they have the properties mentioned.
  • the end piece (2) is produced directly with the tube (1) in the blowing process.
  • An annular groove (4) for receiving a seal (10) is arranged on the upper edge of the end piece (2).
  • the seal (10) is thus on the outside of the end piece (2) and the inside of the pipe socket (3) to be placed.
  • a further annular groove (5) is provided for axially fixing a steel ring (6).
  • the steel ring (6) with a round or rectangular cross section has at least two outwardly directed cranks (7) as a contact surface for the locking elements (13) present in the counterpart (3).
  • the steel ring (6) is not a closed ring, but is opened at one point (8) for better assembly.
  • the ends of the steel ring can be angled or overlapping one another.
  • the open ends (8) of the steel ring (6) are connected in a material, non-positive or positive manner after insertion into the circumferential groove (5), it being intended to ensure that the steel ring (6 ) cannot come off the plastic part (2).
  • the steel ring (6) is only fixed in the groove (5) and can rotate within the groove (5) on the pipe end piece (2).
  • the steel ring (6) is primarily used to stiffen the pipe end piece made of one piece of material.
  • the Steel- ring (6) has no spring or locking function.
  • the locking function is effected by the locking spring (13) in the counterpart.
  • the pipe end piece (2) has in the area of the offset (7) on the steel ring (6) exhibits (9) which are flush with the contour of the steel ring (6) and run obliquely into the contour from the steel ring (6) the catch spring (13) to facilitate the engagement.
  • the steel ring (6) is widened such that the display (9) is formed from the steel ring (6).
  • the pipe socket on the counterpart (3) also has an obliquely outwardly directed exhibition (11), which is interrupted by an opening (12).
  • the detent spring (13) is arranged, which lies through the opening (12) with the associated spring legs of the detent spring (13) on the correspondingly assigned offset (7) of the steel ring (6).
  • the tube (l) is secured in a known manner against being pulled off the counterpart (3) as long as the detent spring (13) is in the area of the opening.
  • Figure 1 shows a representation of the pipe end (2) with the inserted steel ring (6).
  • Figure 2 shows a sectional view of the hose coupling with the pipe end (2) and inserted steel ring (6) and the pushed-on counterpart (3) with the detent spring (13).

Abstract

The invention relates to a plug connection for connecting a pipe section (2) to a matching section (3), wherein a stable pipe end section (2) is directly shaped from a plastic pipe as an integral plastic part. The pipe end section (2) has an annular groove (4) for receiving a seal (10) and furthermore a second annular groove (5) for receiving a steel ring (6). Said steel ring (6) is provided with at least two projections (7) as supporting areas for a catch spring (13) disposed in the matching section (13). The pipe end section (2), in the area of the projections (7) of the steel ring (6), is flared (9).

Description

Steckverbindung connector
Beschreibungdescription
Die Erfindung betrifft eine Steckverbindung für den Anschluß eines Rohrstückes an ein Anschlußstück oder Gegenstück, indem das Gegenstück über die Schlauchleitung geschoben wird und mit Hilfe eines Sicherungsmittels verrastbar ist.The invention relates to a plug connection for the connection of a pipe section to a connection piece or counterpart, in that the counterpart is pushed over the hose line and can be locked with the aid of a securing means.
Derartige Steck- oder Kupplungsverbindungen sind in Kraftfahrzeugbau für Rohrleitungssysteme, z. B. für die Abdichtung von Luftführungen, Ladeluftkühlerleitungen und dergleichen geeignet.Such plug or coupling connections are used in motor vehicle construction for piping systems, for. B. suitable for sealing air ducts, charge air cooler lines and the like.
EP 0 488 844 und EP 0 392 234 beschreiben eine Steckverbindung, die im wesentlichen besteht aus einer Innenhülse, auf die der Schlauch aufgeschoben ist sowie einer auf die Außenseite des Schlauches aufgeschobenen Außenhülse, wobei die beiden Hülsen an ihrem einen Ende miteinander verbunden sind. Die Innenhülse ist hierbei notwendig um den Schlauch zu fixieren, wobei die aufgeschobene Außenhülse mit der Innenhülse durch einen Press-Sitz verbunden ist.EP 0 488 844 and EP 0 392 234 describe a plug-in connection which essentially consists of an inner sleeve onto which the hose is pushed and an outer sleeve pushed onto the outside of the hose, the two sleeves being connected to one another at one end. The inner sleeve is necessary to fix the hose, the pushed-on outer sleeve being connected to the inner sleeve by a press fit.
Zur Herstellung der Steckverbindung wird ein Rohrstutzen, der ein federndes Sicherungsmittel trägt, über die Außenhülse geschoben.To make the plug connection, a pipe socket, which carries a resilient securing means, is pushed over the outer sleeve.
Die DE 196 01 667 beschreibt eine Steckverbindung ohne Innenhülse, wobei die Außenhülse lagengesichert und ohne mechanische Befestigungsmittel auf dem Schlauch angebracht ist. Die Außenhülse wird hierbei auf den Schlauch aufvulkanisiert oder in eine zugeordnete Ausnehmung im Bereich der Wandung einvulkanisiert. Die EP 0 573 863 beschreibt eine Schlauchverbindung, deren Endabschnitt einstückig aus dem thermoplastischen Kunststoff geformt wird und über ein separates Eingriffselement eine Verbindung mit dem Eingriffselement am Gegenstück erreicht wird, wobei die Eingriffselemente Bewegungen beim Verrasten der Bauteile vollziehen und als Feder wirken. Nachteilig sind hierbei der hohe Montage- und Demontageaufwand.DE 196 01 667 describes a plug-in connection without an inner sleeve, the outer sleeve being secured in position and attached to the hose without mechanical fastening means. The outer sleeve is vulcanized onto the hose or vulcanized into an associated recess in the area of the wall. EP 0 573 863 describes a hose connection, the end section of which is formed in one piece from the thermoplastic and a connection with the engagement element on the counterpart is achieved via a separate engagement element, the engagement elements performing movements when the components are locked and acting as a spring. The disadvantage here is the high assembly and disassembly effort.
Nachteil der bekannten Steckverbindungen sind weiterhin die aufwendigen Herstellverfahren aufgrund der unterschiedlichen Einsatzkomponenten und die untrennbare Verbindung der Komponenten beim Einvulkanisieren, die ein Recycling der Werkstoffe erschweren.Disadvantages of the known plug connections are furthermore the complex manufacturing processes due to the different insert components and the inseparable connection of the components during vulcanization, which complicate recycling of the materials.
Der Erfindung liegt daher die Aufgabe zugrunde eine Steckverbindung bereitzustellen, die gleichgute Eigenschaften wie die bekannten Steckverbindungen mit Innen- und/oder Außenhülse gewährleistet, wobei eine Verbindung mit bekanntem Standardkugelkupplungen möglich sein soll, ohne daß die Montage oder Demontage erschwert wird. Die Aufgabe besteht weiterhin darin, das Endstück des Schlauches so weiterzubilden, daß die Verwendung einer Außenhülse nicht erforderlich ist.The invention is therefore based on the object of providing a plug connection which ensures the same good properties as the known plug connections with inner and / or outer sleeve, a connection with known standard ball couplings being possible without the assembly or disassembly being made more difficult. The object is further to develop the end piece of the hose so that the use of an outer sleeve is not necessary.
Die Aufgabe wird dadurch gelöst, daß das Endstück des Rohres in Form eines Kunststoffteiles materialeinstückig direkt aus dem Kunststoffröhr geformt ist und vorzugsweise im Blasverfahren hergestellt wird.The object is achieved in that the end piece of the tube is formed in one piece from the plastic tube in the form of a plastic part and is preferably produced in a blowing process.
Das Rohr kann z. B. auch im Spritzgußverfahren oder durch Rotationssintern hergestellt werden.The tube can e.g. B. can also be produced by injection molding or by rotary sintering.
In beiden Fällen muß der Werkstoff über eine ausreichende Temperaturbeständigkeit und Formstabilität verfügen und die Form des Endstücks muß der Form des Gegenstücks angepaßt werden. Es sind die für derartige Anwendungen bekannten Kunststoffe geeignet, sofern sie die genannten Eigenschaften aufweisen.In both cases, the material must have sufficient temperature resistance and dimensional stability and the shape of the end piece must be adapted to the shape of the counterpart. The plastics known for such applications are suitable, provided they have the properties mentioned.
In einer Ausführungsform wird das Endstück (2) direkt mit dem Rohr (1) im Blasverfahren hergestellt.In one embodiment, the end piece (2) is produced directly with the tube (1) in the blowing process.
An der oberen Kante des Endstückes (2) ist ein Ringnut (4) zur Aufnahme einer Dichtung (10) angeordnet. Die Dichtung (10) liegt somit an der Außenseite des Endstücks (2) sowie der Innenseite des aufzusetzenden Rohrstutzens (3) an.An annular groove (4) for receiving a seal (10) is arranged on the upper edge of the end piece (2). The seal (10) is thus on the outside of the end piece (2) and the inside of the pipe socket (3) to be placed.
Erfindungsgemäß ist eine weitere Ringnut (5) zur axialen Fixierung eines Stahlringes (6) vorgesehen.According to the invention, a further annular groove (5) is provided for axially fixing a steel ring (6).
Der Stahlring (6) mit rundem oder rechteckigem Querschnitt weist mindestens zwei nach außen gerichtete Auskröpfungen (7) als Anlagefläche für die im Gegenstück (3) vorhandenen Rastelemente (13) auf.The steel ring (6) with a round or rectangular cross section has at least two outwardly directed cranks (7) as a contact surface for the locking elements (13) present in the counterpart (3).
Der Stahlring (6) ist kein geschlossener Ring, sondern zur besseren Montage an einer Stelle (8) geöffnet. Die Enden des Stahlringes können abgewinkelt oder überlappend nebeneinandergelegt sein.The steel ring (6) is not a closed ring, but is opened at one point (8) for better assembly. The ends of the steel ring can be angled or overlapping one another.
Es ist ebenfalls im Sinne der Erfindung, daß die offenen Enden (8) des Stahlringes (6) nach dem Einlegen in die umlaufende Nut (5) stoff-, kraft- oder formschlüssig verbunden werden, wobei gewährleistet sein soll, daß der Stahlring (6) sich nicht von dem Kunststoffteil (2) lösen kann.It is also within the meaning of the invention that the open ends (8) of the steel ring (6) are connected in a material, non-positive or positive manner after insertion into the circumferential groove (5), it being intended to ensure that the steel ring (6 ) cannot come off the plastic part (2).
In einer anderen Ausführungsform ist der Stahlring (6) nur in der Nut (5) fixiert und kann innerhalb der Nut (5) auf dem Rohrendstück (2) rotieren.In another embodiment, the steel ring (6) is only fixed in the groove (5) and can rotate within the groove (5) on the pipe end piece (2).
Der Stahlring (6) dient vorrangig zum Versteifen des materialeinstückig hergestellten Rohrendstückes . Der Stahl- ring (6) hat keine Feder- oder Rastfunktion. Die Rastfunktion wird durch die Rastfeder (13) im Gegenstück bewirkt.The steel ring (6) is primarily used to stiffen the pipe end piece made of one piece of material. The Steel- ring (6) has no spring or locking function. The locking function is effected by the locking spring (13) in the counterpart.
Das Rohrendstück (2) weist im Bereich der Kröpfung (7) am Stahlring (6) Ausstellungen (9) auf, die bündig mit der Kontur des Stahlringes (6) sind und vom Stahlring (6) .weg schräg in die Kontur einlaufen, um der Rastfeder (13) das Einrasten zu erleichtern.The pipe end piece (2) has in the area of the offset (7) on the steel ring (6) exhibits (9) which are flush with the contour of the steel ring (6) and run obliquely into the contour from the steel ring (6) the catch spring (13) to facilitate the engagement.
In einer weiteren Ausführungsform ist der Stahlring (6) so verbreitert, daß die Ausstellung (9) aus dem Stahlring (6) geformt ist.In a further embodiment, the steel ring (6) is widened such that the display (9) is formed from the steel ring (6).
Die mechanische formschlüssige Verbindung des Rohres (1) mit dem Gegenstück (3) erfolgt über den eingelegten StahlringThe mechanical form-fitting connection of the pipe (1) with the counterpart (3) takes place via the inserted steel ring
(6) mit Hilfe der Kröpfungen (7) am Stahlring (6) und einem Rastmittel (13), vorzugsweise einer Rastfeder am Gegenstück(6) with the help of the cranks (7) on the steel ring (6) and a locking means (13), preferably a locking spring on the counterpart
(3). Dabei bleibt der Stahlring (6) beim Verrasten der Rastfeder (13) in seiner Position und führt keine eigene Bewegung aus. |(3). The steel ring (6) remains in its position when the detent spring (13) is locked and does not move by itself. |
Der Rohrstutzen am Gegenstück (3) weist ebenfalls eine schräg nach außen gerichtete Ausstellung (11) auf, welche von einem Durchbruch (12) unterbrochen ist.The pipe socket on the counterpart (3) also has an obliquely outwardly directed exhibition (11), which is interrupted by an opening (12).
In dieser Ausstellung (11) ist die Rastfeder (13) angeordnet, die sich durch den Durchbruch (12) mit den zugeordneten Federschenkeln der Rastfeder (13) an die entsprechend zugeordnete Auskröpfung (7) des Stahlringes (6) anlegt. Damit ist das Rohr(l) in bekannter Weise gegen Abziehen vom Gegenstück (3) gesichert, solange sich die Rastfeder (13) im Bereich des Durchbruches befindet.In this exhibition (11) the detent spring (13) is arranged, which lies through the opening (12) with the associated spring legs of the detent spring (13) on the correspondingly assigned offset (7) of the steel ring (6). Thus, the tube (l) is secured in a known manner against being pulled off the counterpart (3) as long as the detent spring (13) is in the area of the opening.
Figur 1 zeigt eine Darstellung des Rohrendes (2) mit dem eingelegten Stahlring (6).Figure 1 shows a representation of the pipe end (2) with the inserted steel ring (6).
Figur 2 zeigt eine Schnittdarstellung der Schlauchkupplung mit dem Rohrende (2) und eingelegten Stahlring (6) sowie dem aufgeschobenen Gegenstück (3) mit eingerasteter Rastfeder (13) .Figure 2 shows a sectional view of the hose coupling with the pipe end (2) and inserted steel ring (6) and the pushed-on counterpart (3) with the detent spring (13).
Bezugszeichenliste :Reference symbol list:
1 Kunststoffrohr1 plastic tube
2 Rohrendstück2 pipe end piece
3 Rohrstutzen im Gegenstück3 pipe sockets in the counterpart
4 Ringnut für Dichtung4 ring groove for seal
5 Ringnut für Stahlring5 ring groove for steel ring
6 Stahlring6 steel ring
7 Auskröpfung am Stahlring7 offset on the steel ring
8 Öffnung im Stahlring8 Opening in the steel ring
9 Ausstellungen am Kunststoffrohr9 exhibitions on the plastic pipe
10 Dichtung10 seal
11 Ausstellung im Gegenstück11 exhibition in the counterpart
12 Durchbruch im Gegenstück12 breakthrough in the counterpart
13 Rastfeder13 detent spring
14 Anlagefläche am Stahlring 14 contact surface on the steel ring

Claims

Patentansprüche claims
1. Steckverbindung für den Anschluß eines Rohrstückes an ein Gegenstück bestehend aus:1. Plug connection for connecting a pipe section to a counterpart consisting of:
einem am zu verbindenden Rohrstutzen stabilisierten Rohrendstück,a pipe end piece stabilized on the pipe socket to be connected,
einem Gegenstück, der den mit dem Rohrstutzen verbundenen Endabschnitt aufnimmt und Mittel aufweist, die mit den am Endabschnitt angeordneten Vorsprüngen verrasten,a counterpart which receives the end section connected to the pipe socket and has means which engage with the projections arranged on the end section,
wobei das Rohrendstück (2) als Kunststoffteil materialeinstückig direkt aus dem Kunststoffröhr (1) geformt ist und in seiner Formgebung ein Ringnut (4) zur Aufnahme einer Dichtungwherein the tube end piece (2) is formed as a plastic part in one piece directly from the plastic tube (1) and in its shape an annular groove (4) for receiving a seal
(10) aufweist, dadurch gekennzeichnet, daß das Rohrendstück ein Ringnut (5) zur Aufnahme eines Stahlringes (6), der mit mindestens zwei nach außen gerichteten Auskröpfungen (7) als Anlagefläche für die im Gegenstück (3) angeordnete Rastfeder(10), characterized in that the pipe end piece has an annular groove (5) for receiving a steel ring (6), which has at least two outwardly directed offset portions (7) as a contact surface for the detent spring arranged in the counterpart (3)
(13) versehen ist, aufweist.(13) is provided.
2. Steckverbindung nach Anspruch 1, dadurch gekennzeichnet, daß der Stahlring (6) einen runden oder rechteckigen Querschnitt aufweist.2. Plug connection according to claim 1, characterized in that the steel ring (6) has a round or rectangular cross section.
3. Steckverbindung nach Anspruch 1 und 2 , dadurch gekennzeichnet, daß das Rohrendstück (2) im Bereich der Auskröpfungen (7) des Stahlringes (6) eine Ausstellung (9) aufweist.3. Plug connection according to claim 1 and 2, characterized in that the pipe end piece (2) in the region of the cranks (7) of the steel ring (6) has an exhibition (9).
4. Steckverbindung nach Anspruch 1 bis 3 , dadurch gekennzeichnet, daß der Stahlring (6) auf dem Rohrendstück (2) rotieren kann, wobei die axiale Lage des Stahlringes nicht veränderbar ist. 4. Plug connection according to claim 1 to 3, characterized in that the steel ring (6) on the pipe end piece (2) can rotate, the axial position of the steel ring is not changeable.
5. Steckverbindung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß die Ausstellung (9) aus dem Stahlring (6) geformt wird. 5. Plug connection according to claim 1 to 4, characterized in that the exhibition (9) from the steel ring (6) is formed.
EP02732546A 2001-04-04 2002-04-03 Plug connection Withdrawn EP1373780A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10116718 2001-04-04
DE10116718 2001-04-04
DE10160043A DE10160043B4 (en) 2001-04-04 2001-12-06 connector
DE10160043 2001-12-06
PCT/EP2002/003653 WO2002081959A1 (en) 2001-04-04 2002-04-03 Plug connection

Publications (1)

Publication Number Publication Date
EP1373780A1 true EP1373780A1 (en) 2004-01-02

Family

ID=26009002

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02732546A Withdrawn EP1373780A1 (en) 2001-04-04 2002-04-03 Plug connection

Country Status (2)

Country Link
EP (1) EP1373780A1 (en)
WO (1) WO2002081959A1 (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE76250C (en) * A. POHL in Freienwalde a. O Hose connection with seal by internal fluid pressure
US2521127A (en) * 1948-05-08 1950-09-05 Wright Aeronautical Corp Fluid tight joint
NL271155A (en) * 1960-11-09
US4423891A (en) * 1981-09-28 1984-01-03 Menges William H Corrugated hose coupling
DE19522690A1 (en) * 1995-06-22 1997-01-02 Henn Gmbh & Co Kg Plug connection for the connection of pipe and hose lines
DE19728137C1 (en) * 1997-07-02 1998-07-23 Schaefer Stettiner Schrauben Plug connection for pipe conduits

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO02081959A1 *

Also Published As

Publication number Publication date
WO2002081959A1 (en) 2002-10-17

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