EP1483522A1 - Connecting coupling with a sliding sleeve and collet chucks - Google Patents

Connecting coupling with a sliding sleeve and collet chucks

Info

Publication number
EP1483522A1
EP1483522A1 EP03708161A EP03708161A EP1483522A1 EP 1483522 A1 EP1483522 A1 EP 1483522A1 EP 03708161 A EP03708161 A EP 03708161A EP 03708161 A EP03708161 A EP 03708161A EP 1483522 A1 EP1483522 A1 EP 1483522A1
Authority
EP
European Patent Office
Prior art keywords
collets
connection coupling
connection
sliding sleeve
sleeve
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.)
Ceased
Application number
EP03708161A
Other languages
German (de)
French (fr)
Inventor
Erwin Weh
Wolfgang Weh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7968446&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1483522(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Publication of EP1483522A1 publication Critical patent/EP1483522A1/en
Ceased 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • F16L37/30—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
    • F16L37/32—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied
    • F16L37/36—Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied with two lift valves being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
    • 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
    • F16L37/12—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members
    • F16L37/121—Couplings of the quick-acting type in which the connection between abutting or axially overlapping ends is maintained by locking members using hooks, pawls or other movable or insertable locking members using freely rocking hooks
    • 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
    • F16L37/28—Couplings of the quick-acting type with fluid cut-off means
    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/037—Quick connecting means, e.g. couplings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87941—Each valve and/or closure operated by coupling motion
    • Y10T137/87949—Linear motion of flow path sections operates both
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87941—Each valve and/or closure operated by coupling motion
    • Y10T137/87949—Linear motion of flow path sections operates both
    • Y10T137/87957—Valves actuate each other
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87917—Flow path with serial valves and/or closures
    • Y10T137/87925—Separable flow path section, valve or closure in each
    • Y10T137/87965—Valve- or closure-operated by coupling motion

Definitions

  • Lie invention relates to a connection coupling for the transmission of gaseous and / or liquid fluids, in particular for filling vehicle gas tanks.
  • connection couplings With such connection couplings, a safe and quickly connectable transmission of a fluid from a pressure source, for example from a refueling system, to a vehicle is to be achieved.
  • the simple and safe operability is particularly important here, so that easy handling is possible even at high refueling and connection pressures of 200 bar and more.
  • connection coupling Such a connection coupling is described in WO 98/05898 by the applicant, the quick connection coupling having a housing with a fluid inlet and a fluid outlet, and a plurality of valves being provided in order to ensure a secure seal of the quick connection coupling until the connection is completely established.
  • These valves are switched after attaching the quick-connect coupling by turning a control lever in a certain predetermined sequence, the outlet valve being opened first by sliding the quick-connect coupling onto a connecting nipple, then the collets serving as locking elements are closed when the control lever is moved, and finally the Inlet valve is opened.
  • the control lever is engaged via an eccentric shaft with the sliding sleeve for acting on the collets and with a sealing piston which also releases the fluid inlet after the plug-in coupling has been connected.
  • connection coupling has proven itself due to its particularly secure connection possibility, it can be improved with regard to its handling when connecting and the adaptation to different pressure ranges, for example for different types of gas.
  • the invention has for its object to provide a connector, in particular as a quick connector of the type mentioned, which allows a particularly simple handling and connectivity with a stable structure.
  • connection coupling is particularly suitable for use with a quick connection coupling for refueling natural gas vehicles, which results in a particularly stable construction since the collets are already guided in longitudinal grooves during the connection process in the lateral circumferential direction and are therefore tangential or laterally not or during the connection process can hardly evade. As a result, a "skewed" attachment to the connection nipple or even a "bending" or damage to the collets will be avoided.
  • the collets are inserted into the longitudinal grooves with a close lateral fit, so that they are stabilized against tangential forces.
  • the collets are well protected from dirt due to their somewhat recessed position, which results in particularly safe handling.
  • connection coupling Due to the centering bevel integrated at the front end of the guide sleeve, reliable guidance is achieved during the connection process and thus a secure connection of the connection coupling is achieved. This ensures easy handling, so that the connection coupling can also be easily connected by laymen. In addition, the Adaptation to a specific connection nipple involved elements can be exchanged quickly and easily in order to achieve great variability with an optimal fit.
  • V n of special, independent importance is also a wiper ring around a sealing piston, so that if the connecting nipple becomes dirty, dirt can be prevented from entering the connecting coupling.
  • Fig. 1 is a side view of a coupling, which in
  • Fig. 2 is an enlarged view of the front part of the coupling according to FIG. 1 with two different cuts.
  • a preferred embodiment of a connector 10 is shown in the form of a so-called quick connector, which is coupled to a connection nipple 30 indicated here on the left.
  • the connection coupling 10 has a tubular housing 11 with a plurality of housing parts 11a, 11b and 11c which are screwed together, the housing part 11c here on the right serving as the inlet region 12 and the left region as the outlet 13 for the forwarding of the z-transmitting fluid to the connection nipple 30
  • a switching unit 21 with a control lever 50 is arranged around the middle housing part 11b
  • the inlet area 12 has a connection adapter 14, to which a fluid line 12 'for supplying the fluid to be transferred is connected via a thread can be designed accordingly in adaptation to the fluid to be transferred, in particular to the respectively desired supply pressure values, passage cross sections, etc.
  • a plurality of elongate collets 15 arranged in tubular form are provided, which can be expanded radially outward shortly before being fitted onto the connecting nipple 30, the outer ends then being in an annular groove 42 (cf. FIG. 2). can intervene.
  • the elongated collets 15 are prestressed by an annular spring 16, so that the collets 15 can automatically expand radially outwards.
  • the collets 15 At the left end here with inwardly bent surfaces, the collets 15 each have a form-fitting engagement profile 17 which corresponds to a groove-shaped connection profile of the connection nipple 30.
  • Their structure is also described in more detail in the prior art mentioned at the outset, so that further explanation is not necessary here.
  • a sealing piston 22 is guided on the inside, which on its front face has a conical sealing surface 23 for abutment against an inner sealing ring of the connecting nipple 30, so that this is essentially along the central axis of the connecting coupling 10 flowing gaseous and / or liquid fluid can not escape to the outside.
  • An outer sliding sleeve 18 is provided around the collets 15, which is guided via a spacer sleeve 18 'on the cylindrical outer casing of the housing part 11a on the left here and is prestressed in the direction away from the connecting nipple 30 with a compression spring 19.
  • the compression spring 19 is supported. here. a. Support ring 20 and thus pushes the sliding sleeve 18 to the control lever 50 with an eccentric shaft 51.
  • An outlet valve 25 provided on the sealing piston 22 seals against the sealing piston 22 in the closed position by means of a sealing ring as a valve seat 26.
  • the outlet valve 25 is acted upon by a compression spring 28 which is supported on the right side on a slide switch 27 of the switching unit 21.
  • This outlet valve 25 ensures that in the uncoupled position not shown here or until shortly before the connection of the Connection coupling 10 to the connection nipple 30, the fluid supplied through the connection adapter 14 cannot flow out.
  • the switching slide 27 is displaced from the connection nipple 30 by the switching unit 21 along the connection coupling axis and thus forms a ventilation valve 35 together with a sealing washer 24.
  • the vent valve 35 and the switching slide 27 are actuated here by pivoting the control lever 50, since the eccentric shaft 51 is coupled to the switching slide 27, in particular by engagement of a plurality of bolts 29 which are slidably inserted in axial slots 32 and are connected to an outer ring slide 31 , This has an annular groove in which the lower end of the eccentric shaft 51 engages here.
  • Switch unit 21 with the control lever 50 rotatable around this ring slide 31.
  • the engagement profile 17 of the collets 15 is brought into engagement with the connection nipple 30 when plugging onto the connection nipple 30.
  • the control lever 50 By actuating (pivoting by approximately 180 °) the control lever 50 into the position shown here, the sliding sleeve 18 is pushed over the collets 15 and thus locked.
  • the collets 15 are - as shown in Fig. 2 - guided in longitudinal grooves 37 which are incorporated in a guide sleeve 38 to fit the respective collets 15.
  • the collets 15 cannot deflect or even be damaged in the event of a tangential or lateral force (for example in the case of a “skewed” attachment), especially since the guide sleeve 38 extends far beyond the connecting nipple 30 and has a centering bevel 39 there. As a result, the collets 15 are arranged relatively far inside the housing and are therefore well protected.
  • the sealing piston 22 When pressure is applied (beginning of the refueling process), the sealing piston 22 is first shifted to the left (also under the action of the spring 28). On the front circumference of the sealing piston 22 a particularly important scraper ring 40 is provided here (see FIG. 2), which reliably prevents dirt from entering the housing 11 when the sealing piston 22 moves axially. When it is in contact with the sealing surface 23, the valve seat 26 on the icht) piston 22 and thus the outlet valve 25 are then opened by moving the sealing piston 22 to the right.
  • the engagement profile 17 has already engaged on the correspondingly designed connection profile of the connection nipple 30, the axial movement of the sliding sleeve 18 and the associated spacer sleeve 18 'engaging over the radially outer ends of the collets 15, so that these are held in a form-fitting manner on the connection nipple 30 ,
  • the sliding sleeve 18 is pushed back by the compression spring 19 after turning the control lever 50. After a short distance, the collets 15 can spread radially outwards again and engage in the annular groove 42 which is then free due to the axial movement of the sliding sleeve 18/18 '. Since the fluid pressure was interrupted beforehand (e.g. by closing one
  • an inlet valve 45 with an associated valve seat 46 is furthermore arranged centrally in the housing 11 or the housing part 11c of the connection coupling 10.
  • the inlet valve 45 is also axially displaceable by the control lever 50 and its eccentric shaft 51 by coupling with the slide valve 27.
  • This slide valve 27 shifts a valve slide 47 of the inlet valve 45 into the open position via the sealing disk 24 in the connection position shown, so that the fluid flowing in from the inlet area 12 through the valve slide 47 and a passage in the sealing disk 24 and the tubular switch slide 27 to the outlet 13 can flow there.
  • connection coupling 10 When the connecting coupling 10 is released, the control slide 27 is displaced to the left by the bolts 29 by turning the control lever 50 (by approximately 180 °), so that the sealing washer 24 can also be released from the sealing engagement.
  • the pressure within the connection coupling 10 can decrease via purchase slots 36 to a pressure compensation space 44.
  • the vent valve 35 is thus opened by the eccentric shaft 51 and the slide switch 27 when the connecting coupling 10 is uncoupled.
  • pressure medium still present flows via the pressure equalization chamber 44 to a ventilation hole 43 which runs parallel to the central fluid passage (through the valves 45, 35 and 25) in the housing part 11c of the connection coupling 10.
  • the vent hole 43 opens into the second line 12 ′′, which is preferably designed as a return hose and, like the feed line, is delimited by a housing cap 48 in order to be able to serve as a handle for simple handling.
  • the vent line 12 ′′ and the fluid line 12 ′ connected to the adapter 14 thus always run at least largely parallel to one another.
  • Fig. 2 the essential design of the front part or outlet 13 of the connector 10 is shown enlarged, in the lower illustration to clarify the longitudinal groove 37 in the guide sleeve 38 with otherwise the same structure as in the upper illustration, a collet. 15. was omitted.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

In order to provide a connecting coupling whose structure has increased stability and which is used for transmitting gaseous and/or liquid fluids, especially for filling the petrol tank of vehicles, comprising a sliding sleeve (18) which is used to lock collet chucks (15) above a connecting nipple, a guide sleeve (38) with longitudinal grooves is provided between the sliding sleeve (18) and the collet chucks (15). The collet chucks are guided inside the longitudinal grooves.

Description

Beschreibungdescription
ANSCHLUSSKUPPLUNG MIT SCHIEBEHÜLSE UND SPANNZANGENCONNECTING COUPLING WITH SLIDE SLEEVE AND COLLETS
Lie Erfindung betrifft eine Anschlußkupplung für die Übertragung von gasförmigen und/oder flüssigen Fluiden, insbesondere zum Befüllen von Fahrzeug-Gastanks.Lie invention relates to a connection coupling for the transmission of gaseous and / or liquid fluids, in particular for filling vehicle gas tanks.
Mit derartigen Anschlußkupplungen soll eine sichere und schnell anschließbare Übertragung eines Fluids von einer Druckquelle, beispielsweise von einer Betankungsanlage aus zu einem Fahrzeug erreicht werden. Besonders wichtig ist hierbei die einfache und sichere Bedienbarkeit, so dass auch bei hohen Betankungs- und Anschlußdrücken von 200 bar und mehr eine problemlose Handhabung ermöglicht wird.With such connection couplings, a safe and quickly connectable transmission of a fluid from a pressure source, for example from a refueling system, to a vehicle is to be achieved. The simple and safe operability is particularly important here, so that easy handling is possible even at high refueling and connection pressures of 200 bar and more.
Eine derartige Anschlußkupplung ist in der WO 98/05898 der Anmelder beschrieben, wobei die Schnellanschlußkupplung ein Gehäuse mit einem Fluideinlaß und einem Fluidauslaß aufweist, sowie mehrere Ventile vorgesehen sind, um eine sichere Abdichtung der Schnellanschlußkupplung bis zur vollständigen Herstellung der Verbindung zu gewährleisten. Diese Ventile werden dabei nach Ansetzen der Schnellanschlußkupplung durch Drehen eines Steuerungshebels in einer bestimmten vorgegebenen Reihenfolge geschaltet, wobei zuerst durch das Aufschieben der Schnellanschlußkupplung an einen Anschlußnippel das Auslaßventil geöffnet wird, dann bei weiterer Bewegung des Steuerungshebels die als Verriegelungselemente dienenden Spannzangen geschlossen werden und schließlich das Einlaßventil geöffnet wird. Der Steuerungshebel ist hierbei über eine Exzenterwelle mit der Schiebehülse für die Beaufschlagung der Spannzangen und mit einem Dichtkolben in Eingriff, der auch den Fluideinlaß nach erfolgtem Anschluß der Steckkupplung freigibt.Such a connection coupling is described in WO 98/05898 by the applicant, the quick connection coupling having a housing with a fluid inlet and a fluid outlet, and a plurality of valves being provided in order to ensure a secure seal of the quick connection coupling until the connection is completely established. These valves are switched after attaching the quick-connect coupling by turning a control lever in a certain predetermined sequence, the outlet valve being opened first by sliding the quick-connect coupling onto a connecting nipple, then the collets serving as locking elements are closed when the control lever is moved, and finally the Inlet valve is opened. The control lever is engaged via an eccentric shaft with the sliding sleeve for acting on the collets and with a sealing piston which also releases the fluid inlet after the plug-in coupling has been connected.
Der stabilen Lagerung und sicheren Führung der Spannzangen kommt insbesondere bei hohen Drücken wesentliche Bedeutung zu, da über diese die gesamte Anschlußkraft der Anschlußkupplung übertragen wird. Obwohl sich die bekannte Anschlußkupplung durch ihre besonders sichere Anschlußmöglichkeit bewährt hat, ist sie hinsichtlich ihrer Handhabung beim Anschließen und die Anpassung an verschiedene Druckbereiche, z.B. für unterschiedliche Gasarten Hoch verbesserungsfähig.The stable storage and safe guidance of the collets is of particular importance, especially at high pressures, since the entire connecting force of the connecting coupling is transmitted via these. Although the known connection coupling has proven itself due to its particularly secure connection possibility, it can be improved with regard to its handling when connecting and the adaptation to different pressure ranges, for example for different types of gas.
Demzufolge liegt der Erfindung die Aufgabe zugrunde, eine Anschlußkupplung, insbesondere als Schnellanschlußkupplung der eingangs genannten Art zu schaffen, die bei stabilem Aufbau eine besonders einfache Handhabung und Anschließbarkeit ermöglicht.Accordingly, the invention has for its object to provide a connector, in particular as a quick connector of the type mentioned, which allows a particularly simple handling and connectivity with a stable structure.
Diese Aufgabe wird gelöst durch eine Anschlußkupplung gemäß den Merkmalen des Patentanspruches 1. Bevorzugte Weiterbildungen der Erfindung- sind- Gegenstand- der abhängigen- Ansprüche-.This object is achieved by a connection coupling according to the features of claim 1. Preferred developments of the invention are the subject of the dependent claims.
Die vorgeschlagene Anschlußkupplung eignet sich insbesondere für den Einsatz bei einer Schnellanschlußkupplung zur Betankung von Erdgasfahreugen, wobei sich eine besonders stabile Bauweise ergibt, da die Spannzangen auch bereits beim Anschließvorgang in seitlicher Umfangsrichtung in Längsnuten sicher geführt sind und somit beim Anschlußvorgang tangential bzw. seitlich nicht oder kaum ausweichen können. Hierdurch wird ein "schiefes" Ansetzen auf dem Anschlußnippel oder gar ein "Verbiegen" oder Beschädigen der Spannzangen sicher vermieden werden.The proposed connection coupling is particularly suitable for use with a quick connection coupling for refueling natural gas vehicles, which results in a particularly stable construction since the collets are already guided in longitudinal grooves during the connection process in the lateral circumferential direction and are therefore tangential or laterally not or during the connection process can hardly evade. As a result, a "skewed" attachment to the connection nipple or even a "bending" or damage to the collets will be avoided.
Insbesondere sind die Spannzangen in bevorzugter Ausführungsform in die Längsnuten mit enger seitlicher Passung eingefügt, so dass diese gegen Tangentialkräfte stabilisiert werden. Zudem sind die Spannzangen durch ihre etwas vertiefte Lage vor Verschmutzung gut geschützt, was eine besonders sichere Handhabung ergibt.In particular, in a preferred embodiment, the collets are inserted into the longitudinal grooves with a close lateral fit, so that they are stabilized against tangential forces. In addition, the collets are well protected from dirt due to their somewhat recessed position, which results in particularly safe handling.
Durch die am Vorderende der Führungshülse integrierte Zentrierschräge wird beim Anschlußvorgang eine sichere Führung erreicht und somit ein sicheres Anschließen der Anschlußkupplung erzielt. Dadurch wird eine einfache Handhabbarkeit gewährleistet, so dass die Anschlußkupplung auch von Laien problemlos angeschlossen werden kann. Zudem können die zur Anpassung an einen bestimmten Anschlußnippel beteiligten Elemente schnell und einfach ausgetauscht werden, um eine grosse Variabilität bei optimaler Passform zu erreichen.Due to the centering bevel integrated at the front end of the guide sleeve, reliable guidance is achieved during the connection process and thus a secure connection of the connection coupling is achieved. This ensures easy handling, so that the connection coupling can also be easily connected by laymen. In addition, the Adaptation to a specific connection nipple involved elements can be exchanged quickly and easily in order to achieve great variability with an optimal fit.
V n besonderer, eigenständiger Bedeutung ist hierbei auch ein Abstreifring um einen Dichtkolben herum, so dass bei eventuell auftretender Verschmutzung des Anschlußnippels ein Schmutzeintritt in die Anschlußkupplung vermieden wird.V n of special, independent importance is also a wiper ring around a sealing piston, so that if the connecting nipple becomes dirty, dirt can be prevented from entering the connecting coupling.
Nachfolgend wird ein Ausführungsbeispiel anhand der beiliegenden Zeichnung näher erläutert und beschrieben. Hierin zeigt:An exemplary embodiment is explained and described in more detail below with reference to the accompanying drawing. Herein shows:
Fig. 1 eine Seitenansicht einer Anschlußkupplung, die imFig. 1 is a side view of a coupling, which in
Längs-Halbschnitt und in angeschlossener Stellung an einen Anschlußnippel dargestellt ist; undLongitudinal half-section and in the connected position is shown on a connecting nipple; and
Fig. 2 eine vergrößerte Darstellung des Vorderteils der Anschlußkupplung gemäß Fig. 1 mit zwei unterschiedlichen Schnittverläufen.Fig. 2 is an enlarged view of the front part of the coupling according to FIG. 1 with two different cuts.
In Fig. 1 ist ein bevorzugtes Ausführungsbeispiel einer Anschlußkupplung 10 in Form einer sog. Schnellanschlußkupplung dargestellt, die an einen hier links angedeuteten Anschlußnippel 30 angekuppelt ist. Die Anschlußkupplung 10 weist ein rohrförmiges Gehäuse 11 mit mehreren, miteinander verschraubten Gehäuseteilen 11a, 11b und 11c auf, wobei das hier rechte Gehäuseteil 11c als Einlaßbereich 12 dient und der linke Bereich als Auslaß 13 für die Weiterleitung des z " übertragenden Fluids an den Anschlußnippel 30. Um den mittleren Gehäuseteil 11b herum ist eine Schalteinheit 21 mit Steuerungshebel 50 angeordnet. Der Einlaßbereich 12 weist einen Anschlußadapter 14 auf, an den über ein Gewinde eine Fluidleitung 12' zur Zuführung des zu übertragenden Fluids angeschlossen ist. Der Anschlußadapter 14 mit einer eingesetzten Filterhülse kann hierbei in Anpassung an das zu übertragende Fluid, insbesondere an die jeweils gewünschten Zuführdruckwerte, Durchlaßquerschnitte usw. entsprechend gestaltet sein. Im Bereich des Auslasses 13 sind mehrere, in Rohrform angeordnete, längliche Spannzangen 15 vorgesehen, die kurz vor dem Aufstecken auf den Anschlußnippel 30 radial nach außen ^ufgespreizt werden können, wobei die äußeren Enden dann in eine Ringnut 42 (vgl. Fig. 2) eingreifen können. Die länglichen Spannzangen 15 sind dabei durch eine Ringfeder 16 vorgespannt, so dass sich die Spannzangen 15 selbsttätig radial nach außen aufspreizen können. An dem hier linken Ende mit nach innen abgekröpften Flächen weisen die Spannzangen 15 jeweils korrespondierend zu einem nutförmigen Anschlußprofil des Anschlußnippels 30 ausgebildete formschlüssige Eingriffsprofile 17 auf. Deren Aufbau ist im eingangs genannten Stand der Technik ebenfalls näher beschrieben, so dass hier auf eine weitere Erläuterung verzichtet werden kann. Es sei noch, erwähnt, dass im Bereich des Auslasses 13 innen ein Dichtkolben 22 geführt ist, der an seiner vorderen Stirnseite eine konische Dichtfläche 23 zur Anlage an einen Innen-Dichtring des Anschlußnippels 30 aufweist, so dass das im wesentlichen entlang der Zentralachse der Anschlußkupplung 10 strömende gasförmige und/oder flüssige Fluid nicht nach außen hin austreten kann.In Fig. 1, a preferred embodiment of a connector 10 is shown in the form of a so-called quick connector, which is coupled to a connection nipple 30 indicated here on the left. The connection coupling 10 has a tubular housing 11 with a plurality of housing parts 11a, 11b and 11c which are screwed together, the housing part 11c here on the right serving as the inlet region 12 and the left region as the outlet 13 for the forwarding of the z-transmitting fluid to the connection nipple 30 A switching unit 21 with a control lever 50 is arranged around the middle housing part 11b The inlet area 12 has a connection adapter 14, to which a fluid line 12 'for supplying the fluid to be transferred is connected via a thread can be designed accordingly in adaptation to the fluid to be transferred, in particular to the respectively desired supply pressure values, passage cross sections, etc. In the area of the outlet 13, a plurality of elongate collets 15 arranged in tubular form are provided, which can be expanded radially outward shortly before being fitted onto the connecting nipple 30, the outer ends then being in an annular groove 42 (cf. FIG. 2). can intervene. The elongated collets 15 are prestressed by an annular spring 16, so that the collets 15 can automatically expand radially outwards. At the left end here with inwardly bent surfaces, the collets 15 each have a form-fitting engagement profile 17 which corresponds to a groove-shaped connection profile of the connection nipple 30. Their structure is also described in more detail in the prior art mentioned at the outset, so that further explanation is not necessary here. It should also be mentioned that in the area of the outlet 13, a sealing piston 22 is guided on the inside, which on its front face has a conical sealing surface 23 for abutment against an inner sealing ring of the connecting nipple 30, so that this is essentially along the central axis of the connecting coupling 10 flowing gaseous and / or liquid fluid can not escape to the outside.
Um die Spannzangen 15 herum ist eine äußere Schiebehülse 18 vorgesehen, die über eine Distanzhülse 18' an dem zylindrischen Außenmantel des hier linken Gehäuseteils 11a geführt ist und mit einer Druckfeder 19 in Richtung vom Anschlußnippel 30 weg vorgespannt ist. Die Druckfeder 19 stützt sich. hierbei an. einen. Abstützring 20 ab und schiebt somit die Schiebehülse 18 zu dem Steuerungshebel 50 mit einer Exzenterwelle 51 hin.An outer sliding sleeve 18 is provided around the collets 15, which is guided via a spacer sleeve 18 'on the cylindrical outer casing of the housing part 11a on the left here and is prestressed in the direction away from the connecting nipple 30 with a compression spring 19. The compression spring 19 is supported. here. a. Support ring 20 and thus pushes the sliding sleeve 18 to the control lever 50 with an eccentric shaft 51.
Ein am Dichtkolben 22 vorgesehenes Auslaßventil 25 dichtet mittels eines Dichtringes als Ventilsitz 26 gegenüber dem Dichtkolben 22 in geschlossener Stellung ab. Das Auslaßventil 25 ist hierbei von einer Druckfeder 28 beaufschlagt, die sich zur rechten Seite hin auf einen Schaltschieber 27 der Schalteinheit 21 abstützt. Durch dieses Auslaßventil 25 wird sichergestellt, dass in der hier nicht dargestellten abgekuppelten Position bzw. bis kurz vor dem Anschluß der Anschlußkupplung 10 an den Anschlußnippel 30 das durch den Anschlußadapter 14 zugeführte Fluid nicht ausströmen kann. Der Schaltschieber 27 wird beim Abkuppeln der Anschlußkupplung 10 om Anschlußnippel 30 durch die Schalteinheit 21 entlang der Anschlußkupplungs-Achse verschoben und bildet so zusammen mit einer Dichtscheibe 24 ein Entlüftungsventil 35.An outlet valve 25 provided on the sealing piston 22 seals against the sealing piston 22 in the closed position by means of a sealing ring as a valve seat 26. The outlet valve 25 is acted upon by a compression spring 28 which is supported on the right side on a slide switch 27 of the switching unit 21. This outlet valve 25 ensures that in the uncoupled position not shown here or until shortly before the connection of the Connection coupling 10 to the connection nipple 30, the fluid supplied through the connection adapter 14 cannot flow out. When the connection coupling 10 is uncoupled, the switching slide 27 is displaced from the connection nipple 30 by the switching unit 21 along the connection coupling axis and thus forms a ventilation valve 35 together with a sealing washer 24.
Das Entlüftungsventil 35 und der Schaltschieber 27 werden hierbei durch Verschwenken des Steuerungshebels 50 betätigt, da die Exzenterwelle 51 mit dem Schaltschieber 27 gekoppelt ist, insbesondere durch Eingriff mehrerer Bolzen 29, die in Axialschlitzen 32 verschiebbar eingesetzt sind und mit einem äußeren Ringschieber 31 in Verbindung stehen. Dieser weist eine Ringnut auf, in die das hier untere Ende der Exzenterwelle 51 eingreift. Dabei ist die gesamte. Schalteinheit 21 mit dem Steuerungshebel 50 um diesen Ringschieber 31 herum drehbar.The vent valve 35 and the switching slide 27 are actuated here by pivoting the control lever 50, since the eccentric shaft 51 is coupled to the switching slide 27, in particular by engagement of a plurality of bolts 29 which are slidably inserted in axial slots 32 and are connected to an outer ring slide 31 , This has an annular groove in which the lower end of the eccentric shaft 51 engages here. The whole is. Switch unit 21 with the control lever 50 rotatable around this ring slide 31.
Wie aus der hier dargestellten Anschlußstellung der Anschlußkupplung 10 ersichtlich ist, wird beim Aufstecken auf den Anschlußnippel 30 das Eingriffsprofil 17 der Spannzangen 15 mit dem Anschlußnippel 30 in Eingriff gebracht. Durch Betätigung (Verschwenken um ca. 180°) des Steuerungshebels 50 in die hier gezeigte Position wird die Schiebehülse 18 über die Spannzangen 15 geschoben und diese somit verriegelt. Die Spannzangen 15 sind - wie in Fig. 2 dargestellt - hierbei in Längsnuten 37 geführt, die in einer Führungshülse 38 passgenau zu den jeweiligen Spannzangen 15 eingearbeitet sind. Dadurch können die Spannzangen 15 bei einer Tangential- oder Seitenkraft (z.B. bei "schiefem" Ansetzen) nicht ausweichen oder gar beschädigt werden, zumal die Führungshülse 38 mit ihrem Vorderende weit über den Anschlußnippel 30 greift und dort eine Zentrierschräge 39 aufweist. Hierdurch sind die Spannzangen 15 relativ weit innerhalb des Gehäuses angeordnet und daher gut geschützt.As can be seen from the connection position of the connection coupling 10 shown here, the engagement profile 17 of the collets 15 is brought into engagement with the connection nipple 30 when plugging onto the connection nipple 30. By actuating (pivoting by approximately 180 °) the control lever 50 into the position shown here, the sliding sleeve 18 is pushed over the collets 15 and thus locked. The collets 15 are - as shown in Fig. 2 - guided in longitudinal grooves 37 which are incorporated in a guide sleeve 38 to fit the respective collets 15. As a result, the collets 15 cannot deflect or even be damaged in the event of a tangential or lateral force (for example in the case of a “skewed” attachment), especially since the guide sleeve 38 extends far beyond the connecting nipple 30 and has a centering bevel 39 there. As a result, the collets 15 are arranged relatively far inside the housing and are therefore well protected.
Bei Druckbeaufschlagung (Beginn des Betankungsvorganges) wird der Dichtkolben 22 zunächst (auch unter Wirkung der Feder 28) nach links verschoben. Am vorderen Umfang des Dichtkolbens 22 ist dabei ein hier besonders wesentlicher Abstreifring 40 (vgl. Fig. 2) vorgesehen, der einen Schmutzeintritt in das Gehäuse 11 bei Axialbewegung des Dichtkolbens 22 sicher vermeidet. Bei Anlage an der Dichtfläche 23 wird dann unter Verschiebung des Dichtkolbens 22 nach rechts zudem der Ventilsitz 26 am ξ)ichtkolben 22 und damit das Auslaßventil 25 geöffnet. Dabei hat das Eingriffsprofil 17 an dem korrespondierend ausgebildeten Anschlußprofil des Anschlußnippels 30 bereits eingegriffen, wobei durch die Axialbewegung der Schiebehülse 18 und der damit verbundenen Distanzhülse 18' diese über die radial äußeren Enden der Spannzangen 15 greift, so dass diese am Anschlußnippel 30 formschlüssig gehalten werden.When pressure is applied (beginning of the refueling process), the sealing piston 22 is first shifted to the left (also under the action of the spring 28). On the front circumference of the sealing piston 22 a particularly important scraper ring 40 is provided here (see FIG. 2), which reliably prevents dirt from entering the housing 11 when the sealing piston 22 moves axially. When it is in contact with the sealing surface 23, the valve seat 26 on the icht) piston 22 and thus the outlet valve 25 are then opened by moving the sealing piston 22 to the right. The engagement profile 17 has already engaged on the correspondingly designed connection profile of the connection nipple 30, the axial movement of the sliding sleeve 18 and the associated spacer sleeve 18 'engaging over the radially outer ends of the collets 15, so that these are held in a form-fitting manner on the connection nipple 30 ,
Zum Lösen der Anschlußkupplung 10 und damit dem Zurückführen der hier dargestellten Anschlußstellung in die Öffnungsstellung wird die Schiebehülse 18 nach Verdrehen des Steuerungshebels 50 von der Druckfeder 19 zurückgeschoben. Nach einem kurzen Weg können die Spannzangen 15 sich wieder radial nach außen aufspreizen und in die durch die Axialbewegung der Schiebehülse 18/18' dann freie Ringnut 42 eingreifen. Da vorher der Fluiddruck unterbrochen wurde (z. B. durch Schließen einesTo release the connection coupling 10 and thus return the connection position shown here to the open position, the sliding sleeve 18 is pushed back by the compression spring 19 after turning the control lever 50. After a short distance, the collets 15 can spread radially outwards again and engage in the annular groove 42 which is then free due to the axial movement of the sliding sleeve 18/18 '. Since the fluid pressure was interrupted beforehand (e.g. by closing one
Betankungsventils) , wird zudem der Dichtkolben 22 verschoben und das Auslaßventil 25 am Ventilsitz 26 geschlossen.Refueling valve), the sealing piston 22 is also moved and the outlet valve 25 on the valve seat 26 is closed.
Im Einlaßbereich 12 ist weiterhin ein Einlaßventil 45 mit einem zugeordneten Ventilsitz 46 zentral im Gehäuse 11 bzw. dem Gehäuseteil 11c der Anschlußkupplung 10 angeordnet. Das Einlaßventil 45 ist ebenfalls durch den Steuerungshebel 50 und seine Exzenterwelle 51 durch die Koppelung mit dem Schaltschieber 27 axial verschiebbar. Dieser Schaltschieber 27 verschiebt nämlich über die Dichtscheibe 24 in der gezeigten Anschlußstellung einen Ventilschieber 47 des Einlaßventils 45 in die Öffnungsstellung, so dass das vom Einlaßbereich 12 zuströmende Fluid durch den Ventilschieber 47 und einen Durchlaß in der Dichtscheibe 24 sowie den rohrförmigen Schaltschieber 27 zum Auslaß 13 hin fließen kann. Beim Lösen der Anschlußkupplung 10 wird durch Verdrehen des Steuerungshebels 50 (um ca. 180°) der Schaltschieber 27 über die Bolzen 29 nach links verschoben, so dass sich auch die Dichtscheibe 24 aus dem Dichteingriff lösen kann. Hierbei kann sich der Druck innerhalb der Anschlußkupplung 10 über purchtrittschlitze 36 zu einem Druckausgleichsraum 44 hin abbauen. Wie oben erwähnt, wird somit beim Abkuppeln der Anschlußkupplung 10 das Entlüftungsventil 35 durch die Exzenterwelle 51 und den Schaltschieber 27 geöffnet. Hierdurch strömt noch anstehendes Druckmedium über den Druckausgleichsraum 44 zu einer Entlüftungsbohrung 43, die parallel zu der zentralen Fluidpassage (durch die Ventile 45, 35 und 25 hindurch) im Gehäuseteil 11c der Anschlußkupplung 10 verläuft. Die Entlüftungsbohrung 43 mündet in der zweiten Leitung 12'', die bevorzugt als Rückführschlauch ausgebildet ist und ebenso wie die Zuführleitung von einer Gehäusekappe 48 umgrenzt ist, um als Handgriff für eine einfache Handhabung dienen zu können. Die Entlüftungsleitung 12'' und die am Adapter 14 angeschlossene Fluidleitung 12 ' verlaufen somit immer zumindest weitgehend parallel zueinander.In the inlet area 12, an inlet valve 45 with an associated valve seat 46 is furthermore arranged centrally in the housing 11 or the housing part 11c of the connection coupling 10. The inlet valve 45 is also axially displaceable by the control lever 50 and its eccentric shaft 51 by coupling with the slide valve 27. This slide valve 27 shifts a valve slide 47 of the inlet valve 45 into the open position via the sealing disk 24 in the connection position shown, so that the fluid flowing in from the inlet area 12 through the valve slide 47 and a passage in the sealing disk 24 and the tubular switch slide 27 to the outlet 13 can flow there. When the connecting coupling 10 is released, the control slide 27 is displaced to the left by the bolts 29 by turning the control lever 50 (by approximately 180 °), so that the sealing washer 24 can also be released from the sealing engagement. Here, the pressure within the connection coupling 10 can decrease via purchase slots 36 to a pressure compensation space 44. As mentioned above, the vent valve 35 is thus opened by the eccentric shaft 51 and the slide switch 27 when the connecting coupling 10 is uncoupled. As a result, pressure medium still present flows via the pressure equalization chamber 44 to a ventilation hole 43 which runs parallel to the central fluid passage (through the valves 45, 35 and 25) in the housing part 11c of the connection coupling 10. The vent hole 43 opens into the second line 12 ″, which is preferably designed as a return hose and, like the feed line, is delimited by a housing cap 48 in order to be able to serve as a handle for simple handling. The vent line 12 ″ and the fluid line 12 ′ connected to the adapter 14 thus always run at least largely parallel to one another.
In Fig. 2 ist die hier wesentliche Gestaltung des Vorderteils bzw. Auslasses 13 der Anschlußkupplung 10 vergrößert dargestellt, wobei in der unteren Darstellung zur Verdeutlichung der Längsnut 37 in der Führungshülse 38 bei ansonsten gleichem Aufbau wie in der oberen Darstellung eine, Spannzange.15. weggelassen wurde. Hieraus ist insbesondere die Führung der Spannzangen 15 (wobei i.a. nur drei Stück in 120°-Teilung ausreichen) innerhalb der Längsnuten 37 in der Führungshülse 39 ersichtlich. Diese ist mit Spannstiften 41 am vorderen Ende des Gehäuseteils 11a sicher befestigt, jedoch - ebenso wie die anderen Bauteile, insbesondere Spannzangen 15 oder Distanzhülse 18' - leicht austauschbar, um diese an unterschiedliche Anschlußnippel 30 oder Betankungsdrücke anzupassen. In Fig. 2 the essential design of the front part or outlet 13 of the connector 10 is shown enlarged, in the lower illustration to clarify the longitudinal groove 37 in the guide sleeve 38 with otherwise the same structure as in the upper illustration, a collet. 15. was omitted. This shows in particular the guidance of the collets 15 (generally only three pieces in a 120 ° division are sufficient) within the longitudinal grooves 37 in the guide sleeve 39. This is securely fastened with dowel pins 41 at the front end of the housing part 11a, but - like the other components, in particular collets 15 or spacer sleeve 18 '- is easily replaceable in order to adapt them to different connecting nipples 30 or refueling pressures.

Claims

1. Anschlußkupplung für die Übertragung von gasförmigen und/oder flüssigen Fluiden, insbesondere zum Befüllen von Fahrzeug- Gastanks, mit einer Schiebehülse (18) zur Verriegelung von Spannzangen (15) über einem Anschlußnippel (30) , dadurch gekennzeichnet, dass zwischen der Schiebehülse (18) und den Spannzangen (15) eine Führungshülse (38) mit Längsnuten (37) angeordnet ist, in denen die Spannzangen (15) geführt sind.1. Connection coupling for the transmission of gaseous and / or liquid fluids, in particular for filling vehicle gas tanks, with a sliding sleeve (18) for locking collets (15) over a connecting nipple (30), characterized in that between the sliding sleeve ( 18) and the collets (15) a guide sleeve (38) with longitudinal grooves (37) is arranged, in which the collets (15) are guided.
2. Anschlußkupplung nach Anspruch 1, dadurch gekennzeichnet, dass innerhalb der Schiebehülse (18) eine Distanzhülse (18') auswechselbar eingepasst ist.2. Connection coupling according to claim 1, characterized in that a spacer sleeve (18 ') is interchangeably fitted within the sliding sleeve (18).
3. Anschlußkupplung nach Anspruch 1 oder 2 , dadurch gekennzeichnet, dass die Spannzangen (15) in den Längsnuten (37) mit geringem seitlichen Passungsspiel eingesetzt sind.3. Coupling according to claim 1 or 2, characterized in that the collets (15) in the longitudinal grooves (37) are inserted with little lateral clearance.
4. Anschlußkupplung nach einem der Ansprüche 1 bis 3 , dadurch gekennzeichnet, dass die Führungshülse (38) an ihrem Vorderende eine Zentrierschräge (39) aufweist.4. Connection coupling according to one of claims 1 to 3, characterized in that the guide sleeve (38) has a centering slope (39) at its front end.
5. Anschlußkupplung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass radial außerhalb der Führungshülse (38) eine umlaufende Ringnut (42) zur Aufnahme der radial äußeren Enden aufgespreizter Spannzangen (15) angeordnet ist.5. Connection coupling according to one of claims 1 to 4, characterized in that a circumferential annular groove (42) for receiving the radially outer ends of expanded collets (15) is arranged radially outside the guide sleeve (38).
6. Anschlußkupplung nach Anspruch 5, dadurch gekennzeichnet, dass die Ringnut (42) in einem Absatz zwischen Schiebehülse (18) und Distanzhülse (18') ausgebildet ist.6. Connection coupling according to claim 5, characterized in that the annular groove (42) is formed in a shoulder between the sliding sleeve (18) and spacer sleeve (18 ').
7. Anschlußkupplung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Führungshülse (38 mit wenigstens einem Spannstift (41) an einem vorderen Gehäuseteil (11a) auswechselbar befestigt ist.7. Connection coupling according to one of claims 1 to 6, characterized in that the guide sleeve (38) is exchangeably fastened to a front housing part (11a) with at least one dowel pin (41).
8. Anschlußkupplung, insbesondere nach Anspruch 1, dadurch gekennzeichnet, dass radial innerhalb der Spannzangen (15) ein Abstreif ing (40) um einen Dichtkolben (22) herum gelagert ist.8. Connection coupling, in particular according to claim 1, characterized in that a stripping ing (40) is mounted radially inside the collets (15) around a sealing piston (22).
9. Anschlußkupplung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass in der Führungshülse (38) drei Spannzangen (15) und drei Längsnuten (37) in 120°-Teilung vorgesehen sind. 9. Connection coupling according to one of claims 1 to 8, characterized in that in the guide sleeve (38) three collets (15) and three longitudinal grooves (37) are provided in 120 ° division.
EP03708161A 2002-03-02 2003-03-01 Connecting coupling with a sliding sleeve and collet chucks Ceased EP1483522A1 (en)

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DE20203246U 2002-03-02
DE20203246U DE20203246U1 (en) 2002-03-02 2002-03-02 Connection coupling with sliding sleeve and collets
PCT/EP2003/002112 WO2003074921A1 (en) 2002-03-02 2003-03-01 Connecting coupling with a sliding sleeve and collet chucks

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EP (1) EP1483522A1 (en)
JP (1) JP4198066B2 (en)
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WO2003074921A1 (en) 2003-09-12
JP4198066B2 (en) 2008-12-17
US7494158B2 (en) 2009-02-24
CN1643290A (en) 2005-07-20
CN1289849C (en) 2006-12-13
JP2006508298A (en) 2006-03-09
DE20203246U1 (en) 2003-04-17
US20050212289A1 (en) 2005-09-29
AU2003212290A1 (en) 2003-09-16
CA2483578C (en) 2011-09-27
CA2483578A1 (en) 2003-09-13

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