EP0922537A2 - Press tool for unreleasably connecting a fitting and a metal tube end introduced therein - Google Patents

Press tool for unreleasably connecting a fitting and a metal tube end introduced therein Download PDF

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Publication number
EP0922537A2
EP0922537A2 EP98119912A EP98119912A EP0922537A2 EP 0922537 A2 EP0922537 A2 EP 0922537A2 EP 98119912 A EP98119912 A EP 98119912A EP 98119912 A EP98119912 A EP 98119912A EP 0922537 A2 EP0922537 A2 EP 0922537A2
Authority
EP
European Patent Office
Prior art keywords
fitting
chain links
tool according
press
press tool
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.)
Granted
Application number
EP98119912A
Other languages
German (de)
French (fr)
Other versions
EP0922537A3 (en
EP0922537B1 (en
Inventor
Walter Viegener
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.)
R NUSSBAUM AGMETALLGIESSEREI und ARMATURENFABRIK
Viega GmbH and Co KG
Original Assignee
R NUSSBAUM AG METALLGIESSEREI und ARMATURENFABRIK
Viega GmbH and Co KG
Franz Viegener II GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by R NUSSBAUM AG METALLGIESSEREI und ARMATURENFABRIK, Viega GmbH and Co KG, Franz Viegener II GmbH and Co KG filed Critical R NUSSBAUM AG METALLGIESSEREI und ARMATURENFABRIK
Publication of EP0922537A2 publication Critical patent/EP0922537A2/en
Publication of EP0922537A3 publication Critical patent/EP0922537A3/en
Application granted granted Critical
Publication of EP0922537B1 publication Critical patent/EP0922537B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/10—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting fittings into hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/046—Connecting tubes to tube-like fittings

Abstract

The tool press has a ring of chain links fitting round the sleeve of the fitting. The chain links (5) defining the closing point of the ring has locators for the coupling ends of a machine driven pressing jaw (1) while the sleeve of the fitting (7) has a locator groove opening towards the inside for at least one holder element which has projections or cutters which dig into the material of the metal pipe during radial cold deformation. The coupling ends are integral with the halves (13) of the pressing jaw which can swivel about axes (16) parallel to each other and to the longitudinal centre plane (14) of the jaw. The coupling ends can be formed as curved cams (12).

Description

Die Erfindung bezieht sich auf ein Preßwerkzeug zum unlösbaren Verbinden eines Fittings und eines in eine Muffe des Fittings eingeführten Metallrohrendes durch Kaltverformung, wobei das Preßwerkzeug einen um die Muffe des Fittings legbaren Ring aus gelenkig miteinander verbundenen Kettengliedern aufweist und der Ring an einer Schließstelle zwischen zwei Kettengliedern offen ist und dort Angriffspunkte für eine Schließeinrichtung vorgesehen sind.The invention relates to a pressing tool for the permanent connection of a Fittings and a metal pipe end inserted into a sleeve of the fitting by cold working, the pressing tool having a ring which can be placed around the sleeve of the fitting comprises articulated chain links and the ring on one Lock point between two chain links is open and there are points of attack for one Locking device are provided.

Es ist ein Preßwerkzeug dieser Art bekannt, durch das Metallrohre mit einer Nennweite von gröper 54 mm mit einem Fitting durch Kaltverformung unlösbar verbunden werden. Die Muffe des Fittings, die ein Metallrohrende aufnimmt, ist mit einer zum Innenraum geöffneten Sicke ausgerüstet, in der ein O-Ring angeordnet ist. Zur Erstellung der Kaltverbindung wird um die Sicke und um die der Sicke benachbarten Teile der Muffe ein Ring aus gelenkig miteinander verbundenen Kettengliedern gelegt, von denen zwei eine offene Schließstelle begrenzen. Diese beiden Kettenglieder werden mit einer elektrohydraulisch betriebenen Schließeinrichtung zusammengefahren, wobei eine Kaltverformung der Sicke, der der Sicke benachbarten Muffenbereiche und des zugeordneten Bereiches des Metallrohres stattfindet. Die Querschnittskontur der Muffe und des Metallrohres ist im verformten Bereich mehreckförmig mit bogenförmig verlaufenden Seiten und abgerundeten Ecken. Zur Erstellung dieser Verformung müssen erhebliche Preßkräfte aufgebracht werden, so daß das Preßwerkzeug konstruktiv aufwendig und aufgrund seiner großen Abmessungen unhandlich ist. Diese Preßwerkzeuge sind teuer und werden von den Installateuren in den seltensten Fällen gekauft, sondern vorwiegend ausgeliehen.A press tool of this type is known, through the metal pipes with a nominal size larger than 54 mm with a fitting that cannot be removed by cold working become. The sleeve of the fitting, which receives a metal pipe end, is with one to the Interior open bead equipped in which an O-ring is arranged. For The cold connection is created around the bead and around the bead Parts of the sleeve are a ring of articulated chain links two of which delimit an open closing point. These two chain links are moved together with an electro-hydraulically operated locking device, cold deformation of the bead, that of the bead adjacent Socket areas and the associated area of the metal pipe takes place. The Cross-sectional contour of the sleeve and the metal pipe is in the deformed area polygonal with curved sides and rounded corners. For Creation of this deformation considerable pressure forces must be applied, so that the pressing tool is structurally complex and due to its large dimensions is unwieldy. These pressing tools are expensive and are used by the installers rarely bought, but mostly loaned.

Die Preßverbindung zwischen der Muffe des Fittings und dem Metallrohrende wird bei Metallrohren bis zu einem Durchmesser von 54 mm mit einem elektrohydraulischen Preßwerkzeug vorgenommen, das mit einer Preßbacke ausgerüstet ist, die zwei ein Preßmaul bildende Preßbackenhälften aufweist. Diese Preßbackenhälften sind drehbar an quer zur Längsachse der Preßbacke sich erstreckenden Brückenteilen gelagert. Die Preßbackenhälften umgreifen die Muffe des Fittings im Bereich der das Dichtelement aufnehmenden Sicke und zu beiden Seiten der Sicke. Zur Erzielung einer unlösbaren Verbindung wird ein Preßdruck unmittelbar vor, auf und hinter der Sicke ausgeübt. Durch die Kaltverformung der Sicke wird der Dichtring auf das Metallrohrende gepreßt, während vor und hinter der Sicke auf dem Umfang verteilte, beabstandete Einprägungen vorgenommen werden, in deren Bereich auch das Metallrohrende plastisch verformt wird.The press connection between the socket of the fitting and the metal pipe end is for metal pipes up to a diameter of 54 mm with an electro-hydraulic Press tool made, which is equipped with a press jaw, the has two press jaw halves forming a press jaw. These press jaw halves are rotatable on bridge parts extending transversely to the longitudinal axis of the press jaw stored. The halves of the press jaws grip around the sleeve of the fitting in the area of the the sealing element receiving bead and on both sides of the bead. To achieve an inseparable connection is a pressure immediately before, on and behind the bead exerted. Due to the cold deformation of the bead, the sealing ring is on the Pressed metal tube end, while in front and behind the bead distributed on the circumference, spaced impressions are made, in the area of which Metal pipe end is plastically deformed.

Der Erfindung liegt die Aufgabe zugrunde, den Werkzeugaufwand für die Kaltverformung von Fitting und eingestecktem Rohrende zur Erzielung einer unlösbaren Verbindung zwischen den genannten Teilen auch dann kleinzuhalten, wenn mit dem Werkzeug in einem Durchmesserbereich gearbeitet wird, der oberhalb von 54 mm liegt und in dem die übliche, unmittelbar auf den Fitting aufsetzbare Preßbacke nicht mehr eingesetzt werden kann.The invention has for its object the cost of tools for cold forming of fitting and inserted pipe end to achieve an inseparable connection keep small between the parts mentioned, even if with the Tool is worked in a diameter range that is above 54 mm lies and in which the usual press jaw which can be placed directly on the fitting is not can be used more.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die das Rohrende aufnehmende Muffe des Fittings eine zum Innenraum geöffnete Aufnahme für ein Halteelement aufweist, das mit Vorsprüngen, Krallen oder einer Schneide versehen ist und daß die die Schließstelle begrenzenden Kettenglieder mit Aufnahmen für Kopplungsenden einer maschinell antreibbaren Preßbacke ausgerüstet sind.This object is achieved in that the receiving the pipe end Socket of the fitting a receptacle open to the interior for a holding element has, which is provided with projections, claws or a cutting edge and that the chain link delimiting the locking point with receptacles for coupling ends a machine-driven press jaw are equipped.

Mit diesem Preßwerkzeug, das konstruktiv einfach ist, wird auch bei größeren Fitting- und Rohrdurchmessern eine unlösbare Kaltverbindung zwischen diesen Teilen erreicht. indem die Muffe des Fittings im Bereich des Dichtungselements und des Halteelements kalt verformt und das Halteelement in das Material des Metallrohres zu einem Formschluß eingetrieben wird. With this press tool, which is structurally simple, even with larger fitting and Pipe diameters an inseparable cold connection between these parts reached. by the sleeve of the fitting in the area of the sealing element and the Holding element cold deformed and the holding element in the material of the metal tube is driven to a positive connection.

Die Preßbackenhälften sind für die Kopplung mit den beiden Kettengliedern, die die Schließstelle begrenzen, entsprechend gestaltet. Bei einer vorteilhaften Ausführungsform sind die Kopplungsenden mit den Preßbackenhälften einstückig ausgebildet und weisen zur Längsmittelebene der Preßbacke sich erstreckende, bogenförmig begrenzte Nocken auf, die in Taschen der Endkettenglieder eingreifen.The press jaw halves are for coupling with the two chain links that the Limit locking point, designed accordingly. In an advantageous embodiment the coupling ends are formed in one piece with the press jaw halves and point to the longitudinal center plane of the press jaw, arcuate limited cams that engage pockets of the end chain links.

Um das Auflegen der Kette auf den Fitting zu erleichtern, sind den Kettengliedern Federelemente zugeordnet, deren Kräfte in Richtung auf die Schließstellung des Kettenringes wirken.To make it easier to put the chain on the fitting, the chain links are Associated spring elements whose forces in the direction of the closed position of the Chain ring act.

Zur Arretierung des Kettenrings auf dem Fitting können die Ketttenglieder an der dem Fitting zugewandten Seite mit Vorsprüngen oder Vertiefungen versehen sein, die in Vertiefungen oder Vorsprünge des Fittings eingreifen.To lock the chain ring on the fitting, the chain links on the Fitting facing side with projections or depressions provided in Engage recesses or protrusions on the fitting.

Weitere Merkmale der Erfindung ergeben sich aus den Unteransprüchen.Further features of the invention emerge from the subclaims.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden beschrieben.An embodiment of the invention is shown in the drawings and is in described below.

Es zeigen:

Figur 1
die die Schließstelle begrenzenden Kettenglieder im Aufriß und die zugeordneten Preßbackenhälften einer elektrohydraulisch betriebenen Preßbacke,
Figur 2
die mit dem Kettenring gekoppelte Preßbacke in der linken Hälfte im Aufriß und in der rechten Hälfte im Schnitt,
Figur 3
eine Ansicht in Richtung des Pfeiles III in Fig. 2 und
Figur 4
den einem Fitting zugeordneten Kettenring in der geöffneten Stellung sowie
Figur 5,6,7
Verfahrensschritte zur Erstellung der unlösbaren Preßverbindung zwischen dem Fitting und dem Metallrohr.
Show it:
Figure 1
the chain links delimiting the closing point and the associated pressing jaw halves of an electrohydraulically operated pressing jaw,
Figure 2
the press jaw coupled to the chain ring in the left half in elevation and in the right half in section,
Figure 3
a view in the direction of arrow III in Fig. 2 and
Figure 4
the chain ring assigned to a fitting in the open position and
Figure 5,6,7
Process steps for creating the permanent press connection between the fitting and the metal pipe.

Das Preßwerkzeug ist mit einem Ring 1 aus gelenkig miteinander verbundenen Kettengliedern, die durch Bolzen 6 gelenkig miteinander verbunden sind und Endkettenglieder 5 aufweisen, die bei dem Auflegen des Kettenringes auf einen Fitting 7 eine Schließstelle 8 begrenzen, die bei einem nicht verformten Fitting geöffnet ist, wie dies in der Fig. 1 dargestellt ist. The pressing tool is provided with a ring 1 made of chain links articulated to one another, which are hinged together by bolts 6 and end chain links 5 which have a 7 when the chain ring is placed on a fitting Limit the closing point 8, which is open with a non-deformed fitting, like this is shown in Fig. 1.

Die Endkettenglieder weisen Taschen 9 auf, deren Einführöffnung an einer Seite durch einen Wulstrand 10 begrenzt wird, der bei der Kopplung mit der Preßbacke 11 von einem Nocken 12 einer Preßbackenhälfte 13 hintergriffen wird. Dieser Nocken 12 erstreckt sich zur Längsmittelebene 14 der Preßbacke und füllt, wie sich aus der Fig. 2 ergibt, weitgehend die Tasche 9 des Endkettengliedes 5 aus. Der Nocken ist bogenförmig begrenzt und bildet mit der zugeordneten Begrenzungsfläche der Tasche 9 einen Flächenschluß, so daß auch die Innenkontur der Tasche bogenförmig ausgebildet ist. Begrenzt wird die Tasche durch glatte Seitenflächen 15.The end chain links have pockets 9, whose insertion opening on one side is limited by a bead 10 which, when coupled to the press jaw 11 is gripped by a cam 12 of a press jaw half 13. This cam 12 extends to the longitudinal center plane 14 of the press jaw and fills, as can be seen in FIG. 2 results largely from the pocket 9 of the end link 5. The cam is delimited arcuately and forms with the associated boundary surface of the Pocket 9 a surface closure, so that the inner contour of the pocket is arcuate is trained. The bag is delimited by smooth side surfaces 15.

In der Fig. 1 sind die Preßbackenhälften 13 in zwei Stellungen aufgezeigt. Die gestrichelte Stellung zeigt die Preßbackenhälften in der größeren Öffnungsstellung, von der aus sie mit den Endkettengliedern 5 gekoppelt werden können. Die ausgezogene Stellung der Preßbackenhälften 13 zeigt in der Fig. 1 die andere Endstellung.In Fig. 1, the press jaw halves 13 are shown in two positions. The dashed Position shows the press jaw halves in the larger open position, from which can be coupled with the end chain links 5. The stripped The position of the press jaw halves 13 shows the other end position in FIG. 1.

Die Preßbackenhälften 13 sind um Achsen 16 schwenkbar, die parallel zur Längsmittelebene 14 verlaufen.The press jaw halves 13 are pivotable about axes 16 which are parallel to the longitudinal center plane 14 run.

Um die Anlage des Kettenrings an den Fitting 7 zu erleichtern, sind bei dem Ausführungsbeispiel nach den Fig. 2 und 4 zwischen den einzelnen Kettengliedern Federelemente 17 angeordnet, die auf die Kettenglieder Kräfte ausüben, die in Richtung der Schließung des Kettenringes wirken.In order to facilitate the contact of the chain ring with the fitting 7, the exemplary embodiment 2 and 4 spring elements between the individual chain links 17 arranged, which exert forces on the chain links in the direction the closing of the chain ring.

In der Fig. 4 ist der Kettenring in geöffneter Stellung aufgezeigt, in der die Rohrfederelemente 17 stark elastisch verformt sind.4, the chain ring is shown in the open position, in which the Bourdon tube elements 17 are deformed strongly elastically.

Die Kettenglieder 3 und 5 weisen taschenförmige Ausnehmungen auf, in denen die Rohrfederelemente 17 angeordnet sind.The chain links 3 and 5 have pocket-shaped recesses in which the Bourdon tube elements 17 are arranged.

Anstelle der Rohrfederelemente 17 besteht auch die Möglichkeit, den Kettengliedern eine Blattfeder 18 zuzuordnen, die am Außenumfang des Ringes angeordnet wird und sich über den größten Teil des Außenbereiches erstreckt.Instead of the tubular spring elements 17 there is also the possibility of the chain links assign a leaf spring 18 which is arranged on the outer circumference of the ring and extends over most of the outdoor area.

In der Fig. 5 ist der Fitting 7 im Längsschnitt und im vergrößerten Maßstab dargestellt mit in die Muffe des Fittings eingeschobenem Metallrohrende 19. Die Muffe des Fittings 7 weist eine Verankerungsnut für ein Dichtelement 20 auf, das beim in der Fig. 6 dargestellten Preßvorgang elastisch verformt auf das Metallrohrende 19 gedrückt wird. Ein Halteelement 21 ist in einer Aufnahmenut 22 formschlüssig montiert oder federnd eingebaut. Das Halteelement 21, das als in axialer Richtung geschlitzter Ring ausgebildet sein kann, weist Vorsprünge 23 auf, die sich bei der radialen Verspressung des Fittings, wie dies in den Fig. 6 und 7 dargestellt ist, in das Material des Metallrohrendes 19 eingraben und den Fitting gegenüber dem Metallrohrende formschlüssig festlegen. Die Fig. 6 zeigt das Ende des Preßvorganges, bei dem das Preßwerkzeug noch nicht von dem Fitting entfernt wurde. Nach der Entfernung des Preßwerkzeuges findet eine geringe Rückfederung der Fittingteile statt. Auch bei dieser geringfügigen Zurückfederung, die in der Fig. 7 dargestellt ist, bleibt der Vorsprung 23 des Halteelementes 21 in das Material des Metallrohrendes 19 eingegraben.5 shows the fitting 7 in longitudinal section and on an enlarged scale with metal pipe end inserted into the fitting sleeve 19. The fitting sleeve 7 has an anchoring groove for a sealing element 20, which is shown in FIG. 6 shown pressing process deformed elastically pressed on the metal pipe end 19 becomes. A holding element 21 is positively mounted in a receiving groove 22 or spring loaded. The holding element 21, which as a slit in the axial direction ring can be formed, has projections 23, which are in the radial compression of the fitting, as shown in Figs. 6 and 7, into the material of the metal pipe end 19 and dig the fitting opposite the metal pipe end form-fitting. Fig. 6 shows the end of the pressing process, in which the Press tool has not yet been removed from the fitting. After removing the Pressing tool there is a slight springback of the fitting parts. This one too slight springback, which is shown in Fig. 7, remains the projection 23 of the holding element 21 buried in the material of the metal tube end 19.

Claims (9)

Preßwerkzeug zum unlösbaren Verbinden eines Fittings und eines in eine Muffe des Fittings eingeführten Metallrohrende durch Kaltverformung, wobei das Preßwerkzeug einen um die Muffe des Fittings legbaren Ring aus gelenkig miteinander verbundenen Kettengliedern aufweist und der Ring von einer Schließstelle zwischen zwei Kettengliedern offen ist und dort Angriffspunkte für eine Schließeinrichtung vorgesehen sind, dadurch gekennzeichnet, daß die die Schließstelle begrenzenden Kettenglieder (5) mit Aufnahmen für Kopplungsenden einer maschinell antreibbaren Preßbacke (1) ausgerüstet sind und die Muffe des Fittings (7) eine zum Innenraum geöffnete Aufnahmenut für mindestens ein Halteelement aufweist, das mit bei der radialen Kaltverformung in das Material des Metallrohres eingrabbare Vorsprünge oder Schneiden ausgerüstet ist.Pressing tool for the inseparable connection of a fitting and a metal pipe end inserted into a sleeve of the fitting by cold working, the pressing tool having a ring made of articulated chain links that can be placed around the sleeve of the fitting and the ring is open from a closing point between two chain links and there is a point of attack for A locking device is provided, characterized in that the chain links (5) delimiting the locking point are equipped with receptacles for coupling ends of a press jaw (1) which can be driven mechanically, and the sleeve of the fitting (7) has a receptacle open to the interior for at least one holding element which is equipped with projections or cutting edges which can be buried in the material of the metal tube during the radial cold deformation. Preßwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Kopplungsenden mit den Preßbackenhälften (13) einstückig sind und die Preßbackenhälften um zueinander parallele und zur Längsmittelebene (14) der Preßbacke parallele Achsen (16) schwenkbar sind.Press tool according to claim 1, characterized in that the coupling ends are integral with the press jaw halves (13) and the press jaw halves around the pressing jaw parallel to one another and to the longitudinal center plane (14) parallel axes (16) are pivotable. Preßwerkzeug nach Anspruch 2, dadurch gekennzeichnet, daß die Kopplungsenden als zur Längsmittelsebene (14) sich erstreckende, bogenförmig begrenzte Nocken (12) ausgebildet sind, die in Taschen (9) der Endkettenglieder (5) eingreifen, die eine bogenförmige Innenkontur und glatte Seitenflächen. Press tool according to claim 2, characterized in that the coupling ends as an arcuate extending to the longitudinal center plane (14) limited cams (12) are formed in pockets (9) of the end chain links (5) engage which has an arcuate inner contour and smooth side surfaces. Preßwerkzeug nach Anspruch 3, dadurch gekennzeichnet, daß die bogenförmige Innenkontur in einen Wulstrand (10) übergeht, der bei der Kopplung von einem Nocken (12) hintergriffen wird.Press tool according to claim 3, characterized in that the arcuate Inner contour merges into a bulge (10), which is in the coupling of a cam (12) is engaged. Preßwerkzeug nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß den Kettengliedern (2,3,4,5) Federelemente zugeordnet sind, deren Kräfte in Richtung auf die Schließstellung des Kettenringes wirken.Press tool according to one of the preceding claims, characterized in that that the chain links (2,3,4,5) are assigned spring elements, whose forces act in the direction of the closed position of the chain ring. Preßwerkzeug nach Anspruch 5, dadurch gekennzeichnet, daß zwischen benachbarten Kettengliedern Rohrfederelemente (17) angeordnet sind.Press tool according to claim 5, characterized in that between adjacent chain links tubular spring elements (17) are arranged. Preßwerkzeug nach Anspruch 6, dadurch gekennzeichnet, daß die Kettenglieder (3,5) Aufnahmetaschen für die Rohrfederelemente (17) aufweisen, die sich zum Teil aus diesen Taschen erstrecken.Press tool according to claim 6, characterized in that the chain links (3,5) have receiving pockets for the Bourdon tube elements (17), which extend partially out of these pockets. Preßwerkzeug nach Anspruch 5, dadurch gekennzeichnet, daß auf dem Kettenring außen ein Blattfedersegment (18) angeordnet ist, das an den Kettengliedern kraftschlüssig anliegt.Press tool according to claim 5, characterized in that on the chain ring outside a leaf spring segment (18) is arranged on the chain links is non-positively. Preßwerkzeug nach Anspruch 1, dadurch gekennzeichnet, daß zur Arretierung der Kettenglieder gegenüber dem Fitting die Kettenglieder an der dem Fitting zugewandten Seite mit Vorsprüngen oder Vertiefungen versehen sind, die mit Teilen des Fittings einen Formschluß eingehen.Press tool according to claim 1, characterized in that for locking the chain links opposite the fitting the chain links on the fitting facing side are provided with projections or depressions with Make a positive connection between parts of the fitting.
EP98119912A 1997-12-10 1998-10-21 Press tool for unreleasably connecting a fitting and a metal tube end introduced therein Expired - Lifetime EP0922537B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29721759U 1997-12-10
DE29721759U DE29721759U1 (en) 1997-12-10 1997-12-10 Press tool for the permanent connection of a fitting and an inserted metal pipe end

Publications (3)

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EP0922537A2 true EP0922537A2 (en) 1999-06-16
EP0922537A3 EP0922537A3 (en) 2005-08-10
EP0922537B1 EP0922537B1 (en) 2008-06-18

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EP98119912A Expired - Lifetime EP0922537B1 (en) 1997-12-10 1998-10-21 Press tool for unreleasably connecting a fitting and a metal tube end introduced therein

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US (1) US6058755A (en)
EP (1) EP0922537B1 (en)
AT (1) ATE398507T1 (en)
CA (1) CA2255379C (en)
DE (2) DE29721759U1 (en)

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US6694586B1 (en) 1999-10-26 2004-02-24 Emerson Electric Co. Press tool for connecting workpieces by cold forming
DE102004051483A1 (en) * 2004-10-22 2006-04-27 Herrle, Richard press tool
EP1726406A2 (en) * 2005-05-24 2006-11-29 HERRLE, Richard Pressing tool, press ring and crimping pliers
DE202006004876U1 (en) * 2006-03-28 2007-08-02 Herrle, Richard Pressing tool, press ring and pressing tongs

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WO1998040178A1 (en) * 1997-03-11 1998-09-17 Gustav Klauke Gmbh Pressing tool
EP0990490B1 (en) * 1998-10-02 2001-11-07 Hans Oetiker AG Maschinen- und Apparatefabrik Device for positioning, clamping and compacting a ring-shaped holder
CH693984A5 (en) * 1999-10-26 2004-05-28 Ridge Tool Ag Press tool for cold shaping a joint between two pipes at their inserted overlap has press pads with openings brought together around the pipe joint for the application of force to give a cold shaping on the workpieces
US6499771B1 (en) 2000-07-18 2002-12-31 Victaulic Company Of America Mechanical pipe coupling with toothed retainer
DE20018312U1 (en) * 2000-10-26 2001-05-10 Franz Viegener Ii Gmbh & Co Kg Press tool
US20060265852A1 (en) * 2001-01-19 2006-11-30 Victaulic Company Triple-expanded mechanical pipe coupling derived from a standard fitting
US7500699B2 (en) 2001-01-19 2009-03-10 Victaulic Company Clamping mechanical pipe coupling derived from a standard fitting
US6913292B2 (en) 2001-01-19 2005-07-05 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US7121593B2 (en) 2001-01-19 2006-10-17 Victaulic Company Triple-expanded mechanical pipe coupling derived from a standard fitting
US20040239115A1 (en) * 2001-01-19 2004-12-02 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US20050146133A1 (en) * 2001-01-19 2005-07-07 Victaulic Company Of America Mechanical pipe coupling derived from a standard fitting
US6923037B2 (en) * 2002-06-17 2005-08-02 Emerson Electric Co. Assembly for articulating crimp ring and actuator
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Also Published As

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DE59814244D1 (en) 2008-07-31
ATE398507T1 (en) 2008-07-15
US6058755A (en) 2000-05-09
DE29721759U1 (en) 1998-04-09
CA2255379C (en) 2008-12-09
EP0922537A3 (en) 2005-08-10
CA2255379A1 (en) 1999-06-10
EP0922537B1 (en) 2008-06-18

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