EP3205455A1 - Compression device - Google Patents

Compression device Download PDF

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Publication number
EP3205455A1
EP3205455A1 EP17151154.6A EP17151154A EP3205455A1 EP 3205455 A1 EP3205455 A1 EP 3205455A1 EP 17151154 A EP17151154 A EP 17151154A EP 3205455 A1 EP3205455 A1 EP 3205455A1
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EP
European Patent Office
Prior art keywords
pressing
pressing device
fastening bolt
recess
bore
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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
EP17151154.6A
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German (de)
French (fr)
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EP3205455B1 (en
Inventor
Stefan Felsberg
Martin Felsberg
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ProPress GmbH
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ProPress GmbH
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    • 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
    • B21D39/048—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 using presses for radially crimping tubular elements

Definitions

  • the present invention relates to a pressing device for pressing a tube with a connecting piece (fitting) with at least two pressing jaws, which are pivotably connected to at least one connecting strap such that both the connecting strap and the pressing jaws are penetrated by a respective fastening bolt, and a receptacle, which receives the parts to be pressed.
  • Such pressing devices are already known from the prior art and are mainly used in the sanitary installation to connect pipes and pipe ends via connectors (fittings), in particular press fittings with each other.
  • Such fittings have at least one tubular spigot coaxially spaced from a compression sleeve.
  • the pipe to be connected is placed on this neck and pressed the compression sleeve with a suitable pressing device or with a suitable pressing tool to create a permanent connection between the pipe and the fitting.
  • T-shaped fittings with three sockets and cross-shaped fittings with four sockets are also known.
  • the Fig. 1a, b show a pressing device 1 in a plan and a side view, as is known in the prior art and as usually for pressing the tubes (in Fig. 1 a, b not shown) is used.
  • a pressing device 1 has two pressing jaws 2, 2 ', which are hingedly connected to a connecting plate 3, 3' and a receptacle 5, which receives the parts to be pressed.
  • a fastening bolt 4 is provided for the connection, which passes through both the connecting tab 3, 3 'and the pressing jaw 2, 2'.
  • the fastening bolt 4, 4 ' protrudes significantly beyond the connecting strap 3, 3', so that the illustrated pressing device 1 has a width B1, which is predetermined by the length of the bolt 4, 4 '.
  • Fig. 1c shows by way of example a T-shaped fitting 6 with three nozzles 7, 7 ', 7 “and correspondingly three press sleeves 8, 8', 8". Between the press sleeves 7, 7 ', 7 “and the respective nozzle 8, 8', 8", an annular space is created for receiving a tube 9, 9 ', 9 ", which in the assembled state (see arrow 17) between the compression sleeve 7, 7 ', 7 “and the nozzle 8, 8', 8" is clamped.
  • FIG. 2a, b show a typical example of the compression of a T-shaped press fitting 6 (as exemplified in Fig. 1c in which a first pipe 9 "has already been pressed in.
  • the compression sleeve 8 In order to produce the pipe 9 (in FIG Fig. 2a not visible), the compression sleeve 8 must be placed in the receptacle 5 of the pressing tool 1.
  • Fig. 2a shows the situation in a side view and the lowest possible angle ⁇ , which the attached pressing tool 1 can have with respect to the tube 9 ", due to the width B1 of the pressing device 1 and in particular because of the bolt 4, 4 'of the Tube 9 "blocked.
  • the material thickness of the pressing device and its components, in particular the connecting strap and the bolt is essentially predetermined by the required stability.
  • a narrower connection tab and / or narrower press jaws can not be used, so possibly a smaller width of the overall device could be achieved.
  • a pressing device which according to the invention provides that the connecting plate has at least one bore for receiving the fastening bolt and a cutout engaging around the bore, in which the bolt head of the fastening bolt rests.
  • a recess with a part-circular area is arranged on the receiving side facing the tab, the center of which coincides with the center of the receptacle.
  • the annular, the bore embracing cutout and on the other hand, the recess with the part-circular area on the receiving side facing the connecting plate can be independently formed on a pressing device according to the invention and both provide the advantage that an unobstructed rotation of the pressing device to an attached compression sleeve is possible.
  • the annular and the bore encompassing cutout rests the bolt head of the connecting bolt in a recess, which significantly reduces the width of the pressing device.
  • the recess with the part-circular area in turn makes room for an existing compression sleeve of an adjacent nozzle, so that rotation of the pressing device can take place unhindered.
  • the stability of the pressing device and the stability of the connecting strap are not affected by the low proportion of milled material, so that the original stability is maintained.
  • the pressing device has two connecting straps, between which the pressing jaws are pivotally mounted. Both connecting straps are essentially identical and have the same recesses and cutouts, so that the pressing device is usable on both sides and has no preferential orientation.
  • the recess provides space for an adjacent compression sleeve.
  • the radius of the recess or the part-circular area is at least the length of a nozzle, preferably 3.5 to 4 cm.
  • the recess may also have a deviating from a pitch geometry, as long as the part-circular area with the required radius is completely within the recess.
  • the recess and the part-circular area can also be identical.
  • the cutout engaging around the hole has a depth which corresponds at least to the height of the bolt head, so that the bolt head does not project beyond the upper edge of the cutout. If the depth of the cut-out is chosen so that it corresponds exactly to the height of the bolt head, a recess with the lowest possible depth is selected, which provides the greatest stability of the connecting plate and is therefore preferred.
  • the outer surfaces of two connecting straps of a pressing tool have a distance of 3 to 4 cm, preferably from 3.4 to 3.6 cm. This ensures that the pressing device is adapted to common press fittings and meets the above conditions.
  • FIG Fig. 3a A concrete embodiment of a pressing tongs 20 according to the invention with two pressing jaws 2, 2 'and a connecting lug 21 (shown) is shown in FIG Fig. 3a shown.
  • the illustrated pressing tool according to the invention 20 has a connecting plate 21 with a part-circular recess 22 and in each case an annular cutout 23, 23 ', in which the bolt heads 24, 24' rest.
  • the recess 22 corresponds to the part-circular area.
  • the center 25 of the part-circular recess 22 or the center of the part-circular area coincides with the center of the recess 5.
  • the radius R of the part-circular recess 22 corresponds at least to the length L of a nozzle, which measures from the center of a fitting 6 and in Fig. 1c is drawn.
  • Fig. 3b shows the sectional plane BB and thus a cross-sectional view of the connecting plate 21 with the recess 22, within which the compression sleeve of an adjacent nozzle is freely movable.
  • Fig. 3c shows finally a sectional view along the sectional plane AA and thus the annular cutouts 25, 25 ', 25 ", 25”', which surround the respective bores 26, 26 ', 26 “, 26'”.
  • the bolt heads 24, 24 ', 24 ", 24”' thus rest in each case in a recess of the connecting plate 21, 21 'and do not protrude beyond their surfaces 27, 27' addition.
  • the width B2 of the pressing tool 20 is substantially smaller than the width B1 of a conventional pressing tool 1 according to FIG Fig. 1a because the bolt heads do not protrude beyond the connecting tab 21 '21'. A total width of 3.6 cm is therefore not exceeded.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Clamps And Clips (AREA)

Abstract

Die vorliegende Erfindung betrifft eine Pressvorrichtung (1) zum Verpressen eines Rohres (9, 9', 9") mit einem Verbindungsstück (Fitting) (6) mit mindestens zwei Pressbacken (2, 2'), die verschwenkbar mit mindestens einer Verbindungslasche (21, 21') derart verbunden sind, dass sowohl die Verbindungslasche (21, 21') als auch die Pressbacken (2, 2') von jeweils einem Befestigungsbolzen (28, 28') durchgriffen werden, und einer Aufnahme (5), die die zu verpressenden Teile aufnimmt. Um eine stabile Pressvorrichtung zu schaffen, die in beliebigen Winkelpositionen verwendbar ist, wird erfindungsgemäß vorgeschlagen, dass die Verbindungslasche (21, 21') mindestens eine Bohrung (26, 26', 26", 26"') zur Aufnahme des Befestigungsbolzens (28, 28') und eine die Bohrung (26, 26', 26", 26'") umgreifende Ausfräsung (25, 25', 25", 25"') besitzt, in der der Bolzenkopf (24, 24', 24", 24"') des Befestigungsbolzens (28, 28') ruht, und/oder auf der der Aufnahme (5) zugewandten Seite der Verbindungs- lasche (21, 21') eine teilkreisförmige Ausnehmung (22) angeordnet ist, deren Mittelpunkt mit dem Mittelpunkt der Aufnahme (5) zusammenfällt.The present invention relates to a pressing device (1) for pressing a pipe (9, 9 ', 9 ") with a connecting piece (6) having at least two pressing jaws (2, 2') which can be pivoted with at least one connecting link (21 , 21 ') are connected in such a way that both the connecting lug (21, 21') and the pressing jaws (2, 2 ') are penetrated by a respective fastening bolt (28, 28'), and a receptacle (5) which surrounds the In order to provide a stable pressing device which can be used in any angular position, it is proposed according to the invention that the connecting link (21, 21 ') has at least one bore (26, 26', 26 ", 26" ') for receiving of the fastening bolt (28, 28 ') and a bore (26, 26', 26 ", 26 '") encompassing cutout (25, 25', 25 ", 25" ') has, in which the bolt head (24, 24 ', 24 ", 24"') of the fastening bolt (28, 28 ') rests, and / or on the receptacle (5) facing side of the connecting lasc He (21, 21 ') a part-circular recess (22) is arranged, whose center coincides with the center of the receptacle (5).

Description

Die vorliegende Erfindung betrifft eine Pressvorrichtung zum Verpressen eines Rohres mit einem Verbindungsstück (Fitting) mit mindestens zwei Pressbacken, die verschwenkbar mit mindestens einer Verbindungslasche derart verbunden sind, dass sowohl die Verbindungslasche als auch die Pressbacken von jeweils einem Befestigungsbolzen durchgriffen werden, und einer Aufnahme, die die zu verpressenden Teile aufnimmt.The present invention relates to a pressing device for pressing a tube with a connecting piece (fitting) with at least two pressing jaws, which are pivotably connected to at least one connecting strap such that both the connecting strap and the pressing jaws are penetrated by a respective fastening bolt, and a receptacle, which receives the parts to be pressed.

Derartige Pressvorrichtungen sind nach dem Stand der Technik bereits bekannt und werden hauptsächlich in der Sanitärinstallation eingesetzt, um Rohre und Rohrenden über Verbindungsstücke (Fittinge), insbesondere Pressfittinge, miteinander zu verbinden. Solche Fittinge besitzen mindestens einen rohrförmigen Stutzen, der koaxial und beabstandet von einer Presshülse umfasst ist. Das zu verbindende Rohr wird auf diesen Stutzen aufgesteckt und die Presshülse mit einer geeigneten Pressvorrichtung bzw. mit einem geeigneten Presswerkzeug aufgepresst, um eine unlösbare Verbindung zwischen dem Rohr und dem Fitting zu schaffen. Neben Pressfittingen mit einem oder zwei Stutzen sind auch T-förmige Fittinge mit drei Stutzen und kreuzförmige Fittinge mit vier Stutzen bekannt.Such pressing devices are already known from the prior art and are mainly used in the sanitary installation to connect pipes and pipe ends via connectors (fittings), in particular press fittings with each other. Such fittings have at least one tubular spigot coaxially spaced from a compression sleeve. The pipe to be connected is placed on this neck and pressed the compression sleeve with a suitable pressing device or with a suitable pressing tool to create a permanent connection between the pipe and the fitting. In addition to press fittings with one or two sockets, T-shaped fittings with three sockets and cross-shaped fittings with four sockets are also known.

Die Fig. 1a, b zeigen eine Pressvorrichtung 1 in einer Drauf- und einer Seitenansicht, wie sie nach dem Stand der Technik bekannt ist und wie sie üblicherweise zum Verpressen der Rohre (in Fig. 1 a,b nicht gezeigt) verwendet wird. Eine solche Pressvorrichtung 1 besitzt zwei Pressbacken 2, 2', die gelenkig mit einer Verbindungslasche 3, 3' verbunden sind sowie eine Aufnahme 5, die die zu verpressenden Teile aufnimmt. Üblicherweise ist zur Verbindung ein Befestigungsbolzen 4 vorgesehen, der sowohl die Verbindungslasche 3, 3' als auch die Pressbacke 2, 2' durchgreift. In der Seitenansicht (Fig. 1 b) ist klar zu erkennen, dass der Befestigungsbolzen 4, 4' deutlich über die Verbindungslasche 3, 3' hinausragt, so dass die dargestellte Pressvorrichtung 1 eine Breite B1 aufweist, die von der Länge des Bolzens 4, 4' vorgegeben ist.The Fig. 1a, b show a pressing device 1 in a plan and a side view, as is known in the prior art and as usually for pressing the tubes (in Fig. 1 a, b not shown) is used. Such a pressing device 1 has two pressing jaws 2, 2 ', which are hingedly connected to a connecting plate 3, 3' and a receptacle 5, which receives the parts to be pressed. Usually, a fastening bolt 4 is provided for the connection, which passes through both the connecting tab 3, 3 'and the pressing jaw 2, 2'. In the side view ( Fig. 1 b) It can be clearly seen that the fastening bolt 4, 4 'protrudes significantly beyond the connecting strap 3, 3', so that the illustrated pressing device 1 has a width B1, which is predetermined by the length of the bolt 4, 4 '.

Fig. 1c zeigt beispielhaft ein T-förmiges Fitting 6 mit drei Stutzen 7, 7', 7" und entsprechend drei Presshülsen 8, 8', 8". Zwischen den Presshülsen 7, 7', 7" und dem jeweiligen Stutzen 8, 8', 8" entsteht ein ringförmiger Raum zur Aufnahme eines Rohres 9, 9', 9", das im zusammengesetzten Zustand (s. Pfeil 17) zwischen der Presshülse 7, 7', 7" und dem Stutzen 8, 8', 8" eingeklemmt ist. Fig. 1c shows by way of example a T-shaped fitting 6 with three nozzles 7, 7 ', 7 "and correspondingly three press sleeves 8, 8', 8". Between the press sleeves 7, 7 ', 7 "and the respective nozzle 8, 8', 8", an annular space is created for receiving a tube 9, 9 ', 9 ", which in the assembled state (see arrow 17) between the compression sleeve 7, 7 ', 7 "and the nozzle 8, 8', 8" is clamped.

Solange genügend Platz zur Positionierung der Pressvorrichtung besteht, ist die Breite B1 der Pressvorrichtung kein Problem. In der Praxis treten allerdings regelmäßig Probleme auf, bei denen der Pressvorgang durch beengte Platzverhältnisse erschwert wird. Die Fig. 2a, b zeigen ein typisches Beispiel anhand der Verpressung eines T-förmigen Pressfittings 6 (wie es beispielhaft in Fig. 1c dargestellt ist), bei dem bereits ein erstes Rohr 9" verpresst ist. Um auch das Rohr 9 (in Fig. 2a nicht erkennbar) zu verpressen, muss die Presshülse 8 in die Aufnahme 5 des Presswerkzeugs 1 gelegt werden. Die überwiegend verwendeten Fittinge sind dabei derart kurz ausgestaltet, dass die Verbindungslasche 3, 3' und/oder der Befestigungsbolzen 4, 4' eine ungehinderte Drehung der Pressvorrichtung 1 um die Presshülse 8 verhindert. Demzufolge sind nur wenige Winkelpositionen möglich, mit denen das Presswerkzeug 1 angesetzt werden kann. Fig. 2a zeigt die Situation in einer Seitendarstellung und den geringstmöglichen Winkel α, den das angesetzte Presswerkzeug 1 gegenüber dem Rohr 9" aufweisen kann. Eine weitere Verschwenkung in Pfeilrichtung 10 wird aufgrund der Breite B1 der Pressvorrichtung 1 und insbesondere wegen des Bolzens 4, 4' von dem Rohr 9" blockiert.As long as there is enough space for positioning the pressing device, the width B1 of the pressing device is not a problem. In practice, however, occur regularly problems in which the pressing process is made difficult by cramped space. The Fig. 2a, b show a typical example of the compression of a T-shaped press fitting 6 (as exemplified in Fig. 1c in which a first pipe 9 "has already been pressed in. In order to produce the pipe 9 (in FIG Fig. 2a not visible), the compression sleeve 8 must be placed in the receptacle 5 of the pressing tool 1. The predominantly used fittings are designed so short that the connecting plate 3, 3 'and / or the fastening bolt 4, 4' prevents unimpeded rotation of the pressing device 1 to the compression sleeve 8. As a result, only a few angular positions are possible with which the pressing tool 1 can be applied. Fig. 2a shows the situation in a side view and the lowest possible angle α, which the attached pressing tool 1 can have with respect to the tube 9 ", due to the width B1 of the pressing device 1 and in particular because of the bolt 4, 4 'of the Tube 9 "blocked.

Die Materialstärke der Pressvorrichtung und deren Bauteile, insbesondere der Verbindungslasche und der Bolzen ist im Wesentlichen durch die erforderliche Stabilität vorgegeben. Insofern können eine schmalere Verbindungslasche und/oder schmalere Pressbacken nicht eingesetzt werden, womit möglicherweise eine geringere Breite der Gesamtvorrichtung erzielt werden könnte.The material thickness of the pressing device and its components, in particular the connecting strap and the bolt is essentially predetermined by the required stability. In this respect, a narrower connection tab and / or narrower press jaws can not be used, so possibly a smaller width of the overall device could be achieved.

Es ist daher die Aufgabe der vorliegenden Erfindung eine Pressvorrichtung vorzuschlagen, die den Anforderungen an Stabilität genügt und die dennoch die Möglichkeit schafft, beim Verpressen eine beliebige Winkelposition des Presswerkzeugs gegenüber dem Pressfitting, insbesondere gegenüber einem parallel angeordneten Stutzen, einzunehmen.It is therefore the object of the present invention to propose a pressing device which satisfies the requirements of stability and nevertheless provides the possibility of an arbitrary angular position of the pressing tool during pressing opposite to the press fitting, in particular with respect to a parallel pipe to take.

Diese Aufgabe wird durch eine Pressvorrichtung nach Anspruch 1 gelöst, die erfindungsgemäß vorsieht, dass die Verbindungslasche mindestens eine Bohrung zur Aufnahme des Befestigungsbolzens und eine die Bohrung umgreifende Ausfräsung aufweist, in der der Bolzenkopf des Befestigungsbolzens ruht. Alternativ oder additiv ist auf der der Aufnahme zugewandten Seite der Lasche eine Ausnehmung mit einem teilkreisförmigen Bereich angeordnet, dessen Mittelpunkt mit dem Mittelpunkt der Aufnahme zusammenfällt.This object is achieved by a pressing device according to claim 1, which according to the invention provides that the connecting plate has at least one bore for receiving the fastening bolt and a cutout engaging around the bore, in which the bolt head of the fastening bolt rests. Alternatively or additionally, a recess with a part-circular area is arranged on the receiving side facing the tab, the center of which coincides with the center of the receptacle.

Die erfindungsgemäßen Merkmale, nämlich einerseits die ringförmige, die Bohrung umgreifende Ausfräsung und andererseits die Ausnehmung mit dem teilkreisförmigen Bereich auf der der Aufnahme zugewandten Seite der Verbindungslasche können unabhängig voneinander an einer erfindungsgemäßen Pressvorrichtung ausgebildet sein und liefern beide den Vorteil, dass eine ungehinderte Drehung der Pressvorrichtung um eine angesetzte Presshülse möglich ist. Durch die ringförmige und die Bohrung umgreifende Ausfräsung ruht der Bolzenkopf des Verbindungsbolzens in einer Vertiefung, was die Breite der Pressvorrichtung deutlich reduziert. Die Ausnehmung mit dem teilkreisförmigen Bereich wiederrum schafft Platz für eine etwa vorhandene Presshülse eines benachbarten Stutzens, so dass eine Rotation der Pressvorrichtung ungehindert erfolgen kann. Die Stabilität der Pressvorrichtung und die Stabilität der Verbindungslasche werden durch den geringen Anteil des abgefrästen Materials nicht beeinflusst, so dass die ursprüngliche Stabilität erhalten bleibt.The features according to the invention, namely on the one hand the annular, the bore embracing cutout and on the other hand, the recess with the part-circular area on the receiving side facing the connecting plate can be independently formed on a pressing device according to the invention and both provide the advantage that an unobstructed rotation of the pressing device to an attached compression sleeve is possible. By the annular and the bore encompassing cutout rests the bolt head of the connecting bolt in a recess, which significantly reduces the width of the pressing device. The recess with the part-circular area in turn makes room for an existing compression sleeve of an adjacent nozzle, so that rotation of the pressing device can take place unhindered. The stability of the pressing device and the stability of the connecting strap are not affected by the low proportion of milled material, so that the original stability is maintained.

Weitere bevorzugte Ausgestaltungen der Erfindung werden im Folgenden und in den Unteransprüchen beschrieben.Further preferred embodiments of the invention are described below and in the subclaims.

Nach einer ersten bevorzugten Ausgestaltung der Erfindung besitzt die Pressvorrichtung zwei Verbindungslaschen, zwischen denen die Pressbacken schwenkbar gelagert sind. Beide Verbindungslaschen sind im Wesentlichen baugleich und weisen die gleichen Ausnehmungen und Ausfräsungen auf, so dass die Pressvorrichtung beidseitig nutzbar ist und keine Vorzugsorientierung aufweist.According to a first preferred embodiment of the invention, the pressing device has two connecting straps, between which the pressing jaws are pivotally mounted. Both connecting straps are essentially identical and have the same recesses and cutouts, so that the pressing device is usable on both sides and has no preferential orientation.

Es wurde bereits erläutert, dass die Ausnehmung Platz für eine benachbarte Presshülse liefert. Vom Mittelpunkt eines T-förmigen Pressfittings aus betrachtet, beträgt der Radius der Ausnehmung oder des teilkreisförmigen Bereiches nach einer bevorzugten Ausgestaltung der Erfindung mindestens die Länge eines Stutzens, vorzugsweise 3,5 bis 4 cm. Es versteht sich von selbst, dass die Ausnehmung auch eine von einem Teilkreis abweichende Geometrie aufweisen kann, solange der teilkreisförmige Bereich mit dem erforderlichen Radius komplett innerhalb der Ausnehmung liegt. Die Ausnehmung und der teilkreisförmige Bereich können auch identisch ausgebildet sein.It has already been explained that the recess provides space for an adjacent compression sleeve. Viewed from the center of a T-shaped press fitting, the radius of the recess or the part-circular area according to a preferred embodiment of the invention is at least the length of a nozzle, preferably 3.5 to 4 cm. It goes without saying that the recess may also have a deviating from a pitch geometry, as long as the part-circular area with the required radius is completely within the recess. The recess and the part-circular area can also be identical.

In ähnlicher Weise ist nach einer weiteren bevorzugten Ausgestaltung der Erfindung vorgesehen, dass die die Bohrung umgreifende Ausfräsung eine Tiefe aufweist, die mindestens der Höhe des Bolzenkopfes entspricht, so dass der Bolzenkopf nicht die Oberkante der Ausfräsung überragt. Ist die Tiefe der Ausfräsung derart gewählt, dass sie exakt der Höhe des Bolzenkopfes entspricht, ist eine Ausnehmung mit der geringstmöglichen Tiefe gewählt, was die größte Stabilität der Verbindungslasche liefert und insofern bevorzugt ist.Similarly, according to a further preferred embodiment of the invention, it is provided that the cutout engaging around the hole has a depth which corresponds at least to the height of the bolt head, so that the bolt head does not project beyond the upper edge of the cutout. If the depth of the cut-out is chosen so that it corresponds exactly to the height of the bolt head, a recess with the lowest possible depth is selected, which provides the greatest stability of the connecting plate and is therefore preferred.

Schließlich ist nach einer besonders bevorzugten Ausgestaltung der Erfindung vorgesehen, dass die Außenflächen zweier Verbindungslaschen eines Presswerkzeugs einen Abstand von 3 bis 4 cm, vorzugsweise von 3,4 bis 3,6 cm aufweisen. Hierdurch ist gewährleistet, dass die Pressvorrichtung an gängige Pressfittinge angepasst ist und den vorgenannten Bedingungen genügt.Finally, it is provided according to a particularly preferred embodiment of the invention that the outer surfaces of two connecting straps of a pressing tool have a distance of 3 to 4 cm, preferably from 3.4 to 3.6 cm. This ensures that the pressing device is adapted to common press fittings and meets the above conditions.

Weitere konkrete Ausgestaltungen der Erfindung werden nachfolgend anhand der Figuren erläutert. Es zeigen:

Fig. 3a
eine erfindungsgemäße Pressvorrichtung in einer Draufsicht,
Fig. 3b, c
Querschnittsdarstellungen der Verbindungslasche und
Fig. 3d
eine erfindungsgemäße Pressvorrichtung in einer Seitendarstellung.
Further concrete embodiments of the invention will be explained below with reference to FIGS. Show it:
Fig. 3a
a pressing device according to the invention in a plan view,
Fig. 3b, c
Cross-sectional views of the connecting plate and
Fig. 3d
a pressing device according to the invention in a side view.

Ein konkretes Ausführungsbeispiel einer erfindungsgemäßen Presszange 20 mit zwei Pressbacken 2, 2' und einer (dargestellten) Verbindungslasche 21 ist in Fig. 3a gezeigt. In Abgrenzung zu der Presszange 1 gemäß Abbildung 1a besitzt die dargestellte und erfindungsgemäße Presszange 20 eine Verbindungslasche 21 mit einer teilkreisförmigen Ausnehmung 22 und jeweils einer ringförmigen Ausfräsung 23, 23', in denen die Bolzenköpfe 24, 24' ruhen. Im dargestellten Ausführungsbeispiel entspricht die Ausnehmung 22 dem teilkreisförmigen Bereich. Der Mittelpunkt 25 der teilkreisförmigen Ausnehmung 22 beziehungsweise der Mittelpunkt des teilkreisförmigen Bereiches fällt dabei mit dem Mittelpunkt der Ausnehmung 5 zusammen. Der Radius R der teilkreisförmigen Ausnehmung 22 entspricht mindestens der Länge L eines Stutzens, die sich von dem Mittelpunkt eines Fittings 6 misst und in Fig. 1c eingezeichnet ist.A concrete embodiment of a pressing tongs 20 according to the invention with two pressing jaws 2, 2 'and a connecting lug 21 (shown) is shown in FIG Fig. 3a shown. In contrast to the pressing tongs 1 according to Figure 1a the illustrated pressing tool according to the invention 20 has a connecting plate 21 with a part-circular recess 22 and in each case an annular cutout 23, 23 ', in which the bolt heads 24, 24' rest. In the illustrated embodiment, the recess 22 corresponds to the part-circular area. The center 25 of the part-circular recess 22 or the center of the part-circular area coincides with the center of the recess 5. The radius R of the part-circular recess 22 corresponds at least to the length L of a nozzle, which measures from the center of a fitting 6 and in Fig. 1c is drawn.

Fig. 3b zeigt die Schnittebene B-B und mithin eine Querschnittsdarstellung der Verbindungslasche 21 mit der Ausnehmung 22, innerhalb der die Presshülse eines benachbarten Stutzens frei beweglich ist. Fig. 3b shows the sectional plane BB and thus a cross-sectional view of the connecting plate 21 with the recess 22, within which the compression sleeve of an adjacent nozzle is freely movable.

Fig. 3c zeigt schließlich eine Schnittansicht entlang der Schnittebene A-A und mithin die ringförmigen Ausfräsungen 25, 25', 25", 25"', die die jeweiligen Bohrungen 26, 26', 26", 26'" umgreifen. Die Bolzenköpfe 24, 24', 24", 24"' ruhen mithin in jeweils einer Vertiefung der Verbindungslasche 21, 21' und ragen nicht über deren Oberflächen 27, 27' hinaus. Aus der Seitenansicht der Fig. 3d eines erfindungsgemäßen Presswerkzeugs 20 ergibt sich unmittelbar, dass die Breite B2 des Presswerkzeugs 20 wesentlich geringer ist als die Breite B1 eines herkömmlichen Presswerkzeugs 1 gemäß Fig. 1a, weil die Bolzenköpfe nicht über die Verbindungslasche 21 '21' hinaus abstehen. Eine Gesamtbreite von 3,6 cm wird mithin nicht überschritten. Fig. 3c shows finally a sectional view along the sectional plane AA and thus the annular cutouts 25, 25 ', 25 ", 25"', which surround the respective bores 26, 26 ', 26 ", 26'". The bolt heads 24, 24 ', 24 ", 24"' thus rest in each case in a recess of the connecting plate 21, 21 'and do not protrude beyond their surfaces 27, 27' addition. From the side view of Fig. 3d of a pressing tool 20 according to the invention results directly that the width B2 of the pressing tool 20 is substantially smaller than the width B1 of a conventional pressing tool 1 according to FIG Fig. 1a because the bolt heads do not protrude beyond the connecting tab 21 '21'. A total width of 3.6 cm is therefore not exceeded.

Claims (5)

Pressvorrichtung zum Verpressen eines Rohres (9, 9',9") mit einem Verbindungsstück (Fitting) (6) mit mindestens zwei Pressbacken (2, 2'), die verschwenkbar mit mindestens einer Verbindungslasche (21, 21') derart verbunden sind, dass sowohl die Verbindungslasche (21, 21') als auch die Pressbacken (2, 2') von jeweils einem Befestigungsbolzen (28, 28') durchgriffen werden, und einer Aufnahme (5), die die zu verpressenden Teile aufnimmt,
dadurch gekennzeichnet, dass a) die Verbindungslasche (21, 21') mindestens eine Bohrung (26, 26', 26", 26'") zur Aufnahme des Befestigungsbolzens (28, 28') und eine die Bohrung (26, 26', 26", 26'") umgreifende Ausfräsung (25, 25', 25", 25'") besitzt, in der der Bolzenkopf (24, 24', 24", 24'") des Befestigungsbolzens (28, 28') ruht, und/oder b) auf der der Aufnahme (5) zugewandten Seite der Verbindungslasche (21, 21') eine Ausnehmung (22) mit einem teilkreisförmigen Bereiches angeordnet ist, dessen Mittelpunkt mit dem Mittelpunkt der Aufnahme (5) zusammenfällt. Pressing device for pressing a pipe (9, 9 ', 9 ") with a connecting piece (Fitting) (6) having at least two pressing jaws (2, 2'), which are pivotably connected to at least one connecting lug (21, 21 ') in that both the connecting lug (21, 21 ') and the pressing jaws (2, 2') are penetrated by a respective fastening bolt (28, 28 ') and a receptacle (5) which receives the parts to be pressed,
characterized in that a) the connecting plate (21, 21 ') at least one bore (26, 26', 26 ", 26 '") for receiving the fastening bolt (28, 28') and a bore (26, 26 ', 26 ", 26 '") encompassing cutout (25, 25', 25", 25 '"), in which the bolt head (24, 24', 24", 24 '") of the fastening bolt (28, 28') rests, and / or b) on the said receiving (5) facing side of the connecting plate (21, 21 ') has a recess (22) is arranged with a part-circular area whose center coincides with the center of the receptacle (5). Pressvorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Pressvorrichtung (20) zwei Verbindungslaschen (21, 21') besitzt, zwischen denen die Pressbacken (2, 2') schwenkbar gelagert sind.Pressing device according to claim 1, characterized in that the pressing device (20) has two connecting straps (21, 21 '), between which the pressing jaws (2, 2') are pivotally mounted. Pressvorrichtung nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Radius (R) der Ausnehmung (22) oder des teilkreisförmigen Bereiches mindestens der Länge (L) eines Stutzens (7, 7', 7") entspricht, insbesondere 3,5 bis 4 cm.Pressing device according to one of claims 1 or 2, characterized in that the radius (R) of the recess (22) or the part-circular region at least the length (L) of a nozzle (7, 7 ', 7 ") corresponds, in particular 3.5 up to 4 cm. Pressvorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die die Bohrung (26, 26', 26", 26'") umgreifende Ausfräsung (25, 25', 25", 25"') eine Tiefe aufweist, die mindestens der Höhe des Bolzenkopfes (24, 24', 24", 24'") entspricht, so dass der Bolzenkopf (24, 24', 24", 24'") nicht die Oberkante der Ausfräsung (25, 25', 25", 25'") überragt.Pressing device according to one of claims 1 to 3, characterized in that the bore (26, 26 ', 26 ", 26'") encompassing cutout (25, 25 ', 25 ", 25"') has a depth which corresponds at least to the height of the bolt head (24, 24 ', 24 ", 24'"), so that the bolt head (24, 24 ', 24 ") , 24 '") does not project beyond the upper edge of the cutout (25, 25', 25", 25 '"). Pressvorrichtung nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Außenflächen (27, 27') zweier Verbindungslaschen (21, 21') eines Presswerkzeugs einen Abstand von 3 bis 4 cm, vorzugsweise von 3,4 bis 3,6 cm aufweisen.Pressing device according to one of claims 1 to 4, characterized in that the outer surfaces (27, 27 ') of two connecting straps (21, 21') of a pressing tool have a distance of 3 to 4 cm, preferably from 3.4 to 3.6 cm ,
EP17151154.6A 2016-01-19 2017-01-12 Compression device Active EP3205455B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016100823.0A DE102016100823A1 (en) 2016-01-19 2016-01-19 pressing device

Publications (2)

Publication Number Publication Date
EP3205455A1 true EP3205455A1 (en) 2017-08-16
EP3205455B1 EP3205455B1 (en) 2019-06-12

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ID=57796207

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Application Number Title Priority Date Filing Date
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DE (1) DE102016100823A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826441A1 (en) * 1996-08-26 1998-03-04 Franz Viegener II GmbH & Co. KG. Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe
DE102004016110A1 (en) * 2004-04-01 2005-10-20 Klauke Gmbh Gustav Press lever arrangement for press, especially for pressing fittings onto pipes, has front, rear stop faces and/or press inserts arranged in pressing mouth and forming front, rear stop faces, each with rigid positive and/or negative shape
EP2027971A2 (en) * 2007-08-24 2009-02-25 REMS-WERK Christian Föll und Söhne GmbH Press clamp for radial pressing of pipes, pipe sections and similar
DE102012100357A1 (en) * 2012-01-17 2013-07-18 Viega Gmbh & Co. Kg Tool jaw, particularly pressing jaw, for compressing workpieces, has tool jaw half detachably connected to holder through axle, where tool jaw halves are supported on respective axles, while each axle is provided with pair of movable bolts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9314054U1 (en) * 1992-11-10 1993-11-25 Geberit Ag Crimping pliers for pressing pipe connections
DE20016060U1 (en) * 2000-09-16 2000-12-28 Volp Rainer Crimping pliers
DE102004005558B4 (en) * 2004-01-31 2006-04-20 Michael Birk Pressing tongs head and pressing tool
DE602005001503T2 (en) * 2005-05-04 2008-03-06 Wen-Ya Yeh Swing device for scissors

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0826441A1 (en) * 1996-08-26 1998-03-04 Franz Viegener II GmbH & Co. KG. Compressing tool pressure clamp for a non-disconnectable cold formed connection between a fitting and a metal pipe
DE102004016110A1 (en) * 2004-04-01 2005-10-20 Klauke Gmbh Gustav Press lever arrangement for press, especially for pressing fittings onto pipes, has front, rear stop faces and/or press inserts arranged in pressing mouth and forming front, rear stop faces, each with rigid positive and/or negative shape
EP2027971A2 (en) * 2007-08-24 2009-02-25 REMS-WERK Christian Föll und Söhne GmbH Press clamp for radial pressing of pipes, pipe sections and similar
DE102012100357A1 (en) * 2012-01-17 2013-07-18 Viega Gmbh & Co. Kg Tool jaw, particularly pressing jaw, for compressing workpieces, has tool jaw half detachably connected to holder through axle, where tool jaw halves are supported on respective axles, while each axle is provided with pair of movable bolts

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Publication number Publication date
DE102016100823A1 (en) 2017-07-20
EP3205455B1 (en) 2019-06-12

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