EP0963815A2 - Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux - Google Patents

Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux Download PDF

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Publication number
EP0963815A2
EP0963815A2 EP99109123A EP99109123A EP0963815A2 EP 0963815 A2 EP0963815 A2 EP 0963815A2 EP 99109123 A EP99109123 A EP 99109123A EP 99109123 A EP99109123 A EP 99109123A EP 0963815 A2 EP0963815 A2 EP 0963815A2
Authority
EP
European Patent Office
Prior art keywords
handle
trigger switch
control
electrohydraulic
hydraulic
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
EP99109123A
Other languages
German (de)
English (en)
Other versions
EP0963815B1 (fr
EP0963815A3 (fr
Inventor
Siegfried Leverberg
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.)
Leverberg Siegfried
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
Application filed by Individual filed Critical Individual
Publication of EP0963815A2 publication Critical patent/EP0963815A2/fr
Publication of EP0963815A3 publication Critical patent/EP0963815A3/fr
Application granted granted Critical
Publication of EP0963815B1 publication Critical patent/EP0963815B1/fr
Anticipated expiration legal-status Critical
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

Definitions

  • the invention relates to an electrohydraulic device for Crimping pipe connections for the production of solderless pipe connections, consisting of a motor part, which with a working piston containing cylindrical housing body a press jaw attachment on its face, a handle with trigger switch and control and supply lines that with a remote generator part of the device are connected, which is the hydraulic circuit controlled by an electrical system contains.
  • solderless cable connections have been introduced whose applications are not only compared to soldered connections, are less polluting, but also allow faster and safer ways of working, since no open flame, such as when soldering, is used becomes.
  • These line connections are based on standard parts offered to the market and must be used when installing piping systems be pressed with the pipes to be connected.
  • press jaws required, which in press machines used either electromechanically or be driven electro-hydraulically to actuate the press jaws.
  • Such a tool is known, for example, from US Pat. No. 5,125,324 forth.
  • the press jaws In order to provide a wide range of applications for the respective press machine To make available, the press jaws have largely uniform installation dimensions and often differ only in the press profiles for the fittings of the different pipe systems and pipe sizes.
  • the invention is therefore based on the object of a press machine propose which is designed such that it is from a Person can be handled with even more benefits through a better arrangement and utilization of the generator part the device is reached.
  • this object is achieved in that both device listed at the beginning of the housing body Handle above the center of gravity of the motor part of the Has device and the trigger switch with control and monitoring elements is integrated in the handle. This allows the Fitter grasp the device with all fingers of one hand without that they get into the area of the trigger switch and the Working hand is not burdened by an excessive tilting moment, since the center of gravity is below the handle and thus the hand is almost only loaded by tensile forces.
  • control and monitoring elements are located in the operator's field of vision and the trigger switch is in work mode by the operator's right or left thumb actuatable.
  • the device according to the invention is therefore both for left and Also suitable for right-handers and the trigger switch is included arranged so that it cannot be triggered accidentally. To do this, the trigger switch is outside the access area of the Handles arranged.
  • the present invention now offers the possibility of To make the housing body pivotable in the handle and in each Make the swivel position usable. This results in the fitter considerable ease of assembly, since the Position of the clamping jaws exactly adapted to the line course can be without the mechanic the ergonomically appropriate posture must change, the trigger switch always in the range of The mechanic's hand is on the thumb.
  • the coupling connection of the hydraulic feed hose to the Housing body is advantageously rotatable, so that no torque at the pivotal movement of the cylinder body motor part of the device can be transmitted.
  • the device according to the invention is a tool holder for fixed clamping of the device provided in a workbench for stationary operation, the tool holder has its own trigger switch and Control elements and a connection socket for receiving the Control line has.
  • the tool holder basically consists of two hinge-like connected holding and clamping elements for receiving and fixing the handle of the device, and a pivotable by 180 ° Trigger switch, with which a stationary left- and right-handed Operation is made possible.
  • the drive and control technology of the device is more advantageous Arranged way in a portable protective case, with what the generator part of the device is designed to be mobile.
  • At least one motor part of the device is according to the invention connected with the drive and control technology, so that several tools can be operated from one generator part can.
  • FIG. 1 shows the electrohydraulic device for pressing of pipe connections for the production of solderless pipe connections according to the invention. It consists of a cylinder or housing body 1.4, which is pivotally connected to a handle 1.1 is. On the handle 1.1 are for the thumb of the hand easily accessible a trigger switch 1.2 arranged in front and easily visible control lights 1.3.1 and 1.3.2.
  • the cylinder body 1.4 is at its front end with a press jaw attachment 1.5 provided with the different and not shown types of press jaws and sizes can be connected in a simple manner can. The sizes of the press jaws to be used are determined system and diameter of the pipes to be pressed.
  • the power-transmitting connection for driving the cylinder in the cylinder body 1.4 takes place via its respective connector 1.9 and in each case one hydraulic hose 5.1 shown in FIG. 5, which is connected to the drive station 4.2.
  • each Control cable 5.2 according to FIG. 5 becomes the control connection with the mobile pump unit or the drive station 4.2 according to Figures 4, 5 and 6 and the respective handle 1.1 on the Plug connection 1.8 made.
  • the handle 1.1 of the housing or cylinder body 1.4 is in the substantially above or slightly behind the center of gravity of the motor part of the device. Different depending on the use large press jaws can vary the center of gravity.
  • the known press machines so heavy for the fitter that he is forced to use the press machine to handle with two hands.
  • the main improvement the pressing machine results from an advantageous one Separation of the motor part (1.4) from the generator part (4.2) the press, as will be explained in more detail later, whereby the part of the press machine to be handled not only lighter but also becomes much smaller and shorter and on the other hand through the use a handle 1.1 instead of a usual, with the known disadvantages of pistol grip, horizontally above the Tool body arranged, which is an ergonomically essential cheaper handling allowed.
  • the handling is similar to a "suitcase handle", in which the center of gravity is also below the Hand with all five fingers.
  • the handle 1.1 held cylinder tool body 1.7 is around his Axis rotatable and can - regardless of the respective workpiece position (Fitting) - be turned so that the press jaw can be set to the required working position on the fitting.
  • the Coupling connection 5.3 (see Fig. 5) of the hydraulic feed hose 5.1, which is connected to the plug closure 1.9, is also rotatable, so that forces caused by a twist of the hose 5.1 could not be effective. Because of these advantages you can with the press tool after Invention even in confined and difficult to access places work satisfactorily.
  • the electro-hydraulic device according to the invention can be clamped in a normal vice and used as a stationary machine for the pre-assembly of pipe connections, such as. B. nodes, corner connections and the like, are used.
  • the additional device for the device according to the invention largely saves the uncomfortable and grueling work in unfavorable places, e.g. B. the so-called overhead installation, at the original locations of the pipe system.
  • all that is required is to attach and connect the corresponding pipes.
  • This not only means a significant reduction in workload and a reduction in the amount of work, but also contributes significantly to safety in the workplace, e.g. B. for ladders as a location for mounting at ceiling height.
  • the trigger switch 2.1 for this Working method is attached to the tool holder and is connected with the same cable that is also used for manual operation.
  • FIG. 2a-d shows a holder for the device for pressing pipe connections, which permits the use of the device according to the invention for stationary operation.
  • It consists of two Z-shaped halves 2.2 and 2.3 connected by a hinge 2.4, the vertical surfaces of which fix the handle 1.1 of the pressing machine when it is clamped in a vice. These surfaces are provided with an adhesion-intensive and elastic material 2.5, for example foam rubber.
  • the rotatable tool body 2.9 held by the handle 1.1 comes to lie at the top, as shown in broken lines in FIG. 2b.
  • the trigger switch attached to the handle of the pressing device with the function display is in an inaccessible place, so that it is no longer possible to operate the pressing device properly.
  • an operation similar to that on the handle on one of the horizontal legs of the tool holder is attached, so that operation via trigger switch 2.1 and function control 2.6 by red and green signal lamps can be carried out in the same way as in the mobile handling of the pressing tool.
  • the hydraulic connection to the drive station is provided by the hydraulic hose 5.1 (see FIG. 5), which is also connected to the pressing device in the same way.
  • the Electrical connection to the drive station is made by the existing control cable 5.2, which in this case is not connected to the socket 1.8 in the handle of the pressing device, but to the trigger switch of the tool holder via the socket 2.7.
  • the operator can take up a similar working position to that of mobile handling, only that it does not need to hold the press tool and therefore has two hands free to prepare the respective pressing processes.
  • To carry out the pressing process he needs one Hand to operate the trigger switch 2.1 while the other Hand for fixing and holding the pipe elements to be assembled free is. This in turn is like the way you work with the mobile handling of the device according to the invention is common is.
  • FIG. 3 shows an electrohydraulic circuit in which the components used are shown with DIN-compatible symbols.
  • the movement sequence during the work process is controlled by the electro-hydraulic Circuit determined.
  • the process is as follows in front of:
  • the trigger switch 1.2 or 2.1 is activated by the operator's thumb actuates and causes the hydraulic cylinder to advance and thus the compression of the not shown Press jaws.
  • a factory-set pressure relief valve determines the maximum pressure of the hydraulic system and thus the maximum size of the pressing force on the press jaw. The set maximum force is sufficient for all pipe sizes. Is the maximum pressure reached, the device is automatically switched to reverse, the hydraulic cylinder moves back to the starting position and the press jaw comes loose. If for any reason the current one Pressing process is to be interrupted, it is only necessary to interrupt the actuation of the trigger switch 1.2 or 2.1.
  • the drive station is similar on a cart or cart a hand truck, as shown in Figure 4.
  • Wagons or the cart will not only be the unit 4.2 for the drive and Control technology transported, but also for implementation the pressing operations required accessories, such as the Pressing tools, pressing jaws in different sizes, hydraulic hoses, Cables and the like.
  • special fasteners 4.8 are provided for attaching hoses and cables. This gives the advantage that the heavy equipment and parts for the Do not press the pipe connections over long distances must be carried away.
  • the trolley is equipped with 4.3 wheels that are not only for uneven floors are suitable, but also over stairs can be used away.
  • handlebars 4.4 and 4.5 provided on the car, with the help of two people the car can carry without much effort.
  • eyelets 4.6 to the whole device z. B. with the help of a construction crane to higher lying To be able to spend jobs.
  • the drive station can transported upright or lying down, but also in both positions operate.
  • the motor part according to FIG. 1 is from the generator part Figure 4 of the machine separately. Since the generator part, namely Pump, oil tank, hydraulic circuit, electric motor, electric control u. the like. The part with the greater weight is the advantageous possibility of using only the motor part as a working or To be able to use press tool for the actuation of the press jaws.
  • This press tool according to Figure 1 consists only of the Handle 1.1, the trigger switch 1.2, the indicator lights 1.3, the Housing body 1.4 with press jaw attachment 1.5 and is over the Hydraulic hose 5.1, 4.1, 1.9 and the electrical cable 5.2, 4.7, 1.8 with the mobile pump unit, the drive station after Figure 4 connected, which stands on the floor.
  • the separation between the drive station and the implement allows also connect drive tools that are suitable for press jaws which have different installation dimensions or which are intended for other applications.
  • the Fan side of the electric motor 4.9 protrudes from the protective box 4.2 in which the drive and control technology is located.
  • the air is drawn in by the fan of the electric motor and through air vents 4.10, which are on the side walls of the protective box.
  • This also makes the inside Oil tank constantly during operation by a constant Airflow cooled. So you are able to use forces and Feed speeds on press jaws and other devices to be able to determine as required. This fact in turn opens up further technical development opportunities and areas of application in the field of solderless line connections and other technical processes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Clamps And Clips (AREA)
  • Automatic Assembly (AREA)
EP99109123A 1998-06-12 1999-05-08 Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux Expired - Lifetime EP0963815B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19826110 1998-06-12
DE19826110A DE19826110A1 (de) 1998-06-12 1998-06-12 Elektrohydraulische Vorrichtung zum Verpressen von Rohrverbindungen

Publications (3)

Publication Number Publication Date
EP0963815A2 true EP0963815A2 (fr) 1999-12-15
EP0963815A3 EP0963815A3 (fr) 2001-05-02
EP0963815B1 EP0963815B1 (fr) 2004-07-21

Family

ID=7870636

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109123A Expired - Lifetime EP0963815B1 (fr) 1998-06-12 1999-05-08 Dispositif électro-hydraulique pour le sertissage de raccords de tuyaux

Country Status (3)

Country Link
EP (1) EP0963815B1 (fr)
AT (1) ATE271445T1 (fr)
DE (2) DE19826110A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122243A1 (fr) * 2017-12-21 2019-06-27 WS Wieländer + Schill Engineering GmbH & Co. KG Outil hydraulique pour un dispositif de traction et/ou de pressage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20113238U1 (de) 2001-08-09 2001-11-22 Rothenberger Werkzeuge AG, 65779 Kelkheim Handwerkzeug mit einem elektrohydraulischen Antriebsteil und einem Arbeitskopf
DE102004005558B4 (de) * 2004-01-31 2006-04-20 Michael Birk Presszangenkopf und Presswerkzeug
DE102008057424B4 (de) * 2008-11-12 2010-09-02 Interprecise Donath Gmbh Vorsatzvorrichtung für eine Rohrpressmaschine
DE102011052852A1 (de) 2011-08-19 2013-02-21 Gustav Klauke Gmbh Pressvorrichtung
US11236849B2 (en) 2019-09-04 2022-02-01 Techtronic Cordless Gp Pressing tool and method for a re-pressing operation
DE102020115060A1 (de) 2020-06-05 2021-12-09 Joiner's Bench Gmbh Leitungselement, Pressgerät, Presswerkzeug, Erfassungseinrichtung für ein Pressgerät und Verfahren zur Herstellung einer Verbindung

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125324A (en) 1988-02-10 1992-06-30 Daia Industry Co. Ltd. Portable hydraulically operated device incorporating automatic drain valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455055B (sv) * 1986-10-27 1988-06-20 Kurt Moberg Verktyg for vikning av en fran en yta utskjutande platflik
US4790218A (en) * 1987-11-19 1988-12-13 Cabrera Leonel M Rotary socket wrench
US5216848A (en) * 1988-10-04 1993-06-08 Stripping Technologies Inc. Dual controls for an abrasive blast system
DE3835696C2 (de) * 1988-10-20 1993-12-23 Pfisterer Elektrotech Karl Tragbare Presse zur Herstellung von Preßverbindungen
GB2237836B (en) * 1989-11-08 1993-09-29 Draftex Ind Ltd Apparatus for fitting flexible strips
US5813805A (en) * 1996-08-29 1998-09-29 Kopras; Robert K. Spiral cutting tool with detachable handle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125324A (en) 1988-02-10 1992-06-30 Daia Industry Co. Ltd. Portable hydraulically operated device incorporating automatic drain valve

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019122243A1 (fr) * 2017-12-21 2019-06-27 WS Wieländer + Schill Engineering GmbH & Co. KG Outil hydraulique pour un dispositif de traction et/ou de pressage
US11673249B2 (en) 2017-12-21 2023-06-13 WS Wieländer + Schill Professionelle Karosserie-Spezialwerkzeuge GmbH & Co. KG Hydraulic tool for a pulling and/or pressing device

Also Published As

Publication number Publication date
ATE271445T1 (de) 2004-08-15
DE59909989D1 (de) 2004-08-26
EP0963815B1 (fr) 2004-07-21
DE19826110A1 (de) 1999-12-23
EP0963815A3 (fr) 2001-05-02

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