EP0412434B1 - Hydraulically actuated severing device - Google Patents

Hydraulically actuated severing device Download PDF

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Publication number
EP0412434B1
EP0412434B1 EP90114821A EP90114821A EP0412434B1 EP 0412434 B1 EP0412434 B1 EP 0412434B1 EP 90114821 A EP90114821 A EP 90114821A EP 90114821 A EP90114821 A EP 90114821A EP 0412434 B1 EP0412434 B1 EP 0412434B1
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EP
European Patent Office
Prior art keywords
peeling
jaw
peeling device
hydraulically operated
piston rod
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.)
Expired - Lifetime
Application number
EP90114821A
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German (de)
French (fr)
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EP0412434A1 (en
Inventor
Wolf Dr. Kuhlmann
Dieter Hesse
Karl Kögel
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.)
Lukas Hydraulik GmbH
Original Assignee
FAG Kugelfischer Georg Schaefer KGaA
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.)
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Application filed by FAG Kugelfischer Georg Schaefer KGaA filed Critical FAG Kugelfischer Georg Schaefer KGaA
Publication of EP0412434A1 publication Critical patent/EP0412434A1/en
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Publication of EP0412434B1 publication Critical patent/EP0412434B1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B99/00—Subject matter not provided for in other groups of this subclass
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
    • A62B3/005—Rescue tools with forcing action
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S72/00—Metal deforming
    • Y10S72/705—Vehicle body or frame straightener

Definitions

  • the invention relates to a hydraulically operated peeling device according to the preamble of claim 1.
  • a hydraulically operated accident rescue device with an expanding beak is known.
  • Various tools can be used at the tips of the expanding beak, so that the accident rescue device can also be used to insert a manhole into an accident-damaged vehicle when using a clamping jaw and a peeling jaw, in order to enable the rescue teams to access the interior of the vehicle.
  • the applicant's publication HR 411 65 / 3D / E5 "Lukas rescue systems" shows in the photo on the bottom right on the last page the use of a spreader with a clamping and peeling jaw as a peeling device for making a manhole.
  • the clamping and peeling jaws are e.g. shown on page 3 of the brochure and its application on page 15, item 509/510.
  • the peeling jaw can advantageously be arranged on a slide (claims 2, 3 and 4) or directly or via an extension on the piston rod (claims 5, 6 and 7).
  • the slide, the peeling jaw or the cylinder base can have the mandrel-like attachment.
  • the hydraulic cylinder is designated 1. In its basic structure, it corresponds to the known rescue cylinders, as shown on page 8 of the aforementioned publication by the applicant.
  • the control valve 2 is located on the piston rod end of the hydraulic cylinder.
  • the clamping jaw 4 is fastened to the cylinder base 3. Opposite is the peeling jaw 5, which is fastened on a slide 6, which is acted upon by the piston rod 7 and is axially displaceable.
  • the carriage 6 is guided on the housing of the hydraulic cylinder 1 and has yet another attachment point 8 'for the peeling jaw 5, as shown in Figure 2.
  • a mandrel 9 is arranged on the carriage 6 for pressing in the first opening.
  • FIGS. 4 and 5 Another embodiment of a peeling device according to the invention is shown in FIGS. 4 and 5.
  • the hydraulic cylinder 1 with the control valve 2 and the cylinder base 3 has a peeling jaw 5 attached directly to the piston rod 7.
  • the clamping jaw 4 is fastened to the end of the cylinder housing on the piston rod side.
  • a further clamping jaw 10 is arranged on the cylinder base 3, which is used for the second stroke.
  • the actuation path of the peeling device can be almost doubled.
  • an extension of the actuation path can also be achieved by using an extension 11 which is plugged onto the piston rod 7 during the second stroke.
  • a mandrel 9 is attached to the cylinder base 3 and serves to press in the first opening.
  • FIG. 9 shows a peeling device according to the invention in use.
  • the wall into which a manhole is to be made is designated by 12. Sheet thicknesses up to 7 mm can be peeled.
  • the first opening 13 is made, for example by arranging the peeling device according to FIG. 8 with its mandrel 9 approximately perpendicular to the plane of the wall 12, the piston rod 7 being in contact supports an abutment (not shown). Now the hydraulic cylinder 1 is pressurized, the piston rod 7 extends and presses the mandrel 9 into the wall 12, whereby the first opening 13 is created. The mandrel or the piston rod is retracted again and the peeling device with the clamping jaw 4 and the peeling jaw 5 is suspended in the first opening 13.
  • the hydraulic cylinder is now pressurized again, whereby the piston rod 7 extends with the peeling jaw 5 and peels the sheet metal strip 14 out of the wall 12 (FIG. 9).
  • the piston rod is retracted again and the peeling device according to FIG. 6 with its further clamping jaw 10 is inserted into the first opening 13 and the slot that has already been created, and the hydraulic piston 1 is pressurized again, whereby the peeling jaw 5 peels further forward and extended the slot.
  • the piston rod 7 can be retracted in a third operation, the extension 11 plugged in and the slot can be extended even further with a further stroke.
  • the procedure is similar with a peeling device according to FIGS.
  • the peeling jaw is attached to the corresponding attachment points 8, 8 'on the slide 6 as required.
  • the mandrel for introducing the first opening 13 can also be arranged on the head of the slide 6, or combined with the peeling jaw can be designed as a plug-on set.
  • the maximum force of the hydraulic cylinder is available from the beginning over the entire piston stroke.
  • this has a spreading path at the tips of 820 mm when ready for operation Mass of 28 kg and a spreading force of 60 - 80 kN.
  • a peeling device with a (hydraulic cylinder type 12/300 achieves a maximum travel of at least 600 mm with an operational mass of 13.5 kg and a compressive force of 120 kN (first stroke 300 mm and + 2, stroke 300 mm) and when using an extension 11 up to 1000 mm can be achieved, ie a significant increase in performance with simultaneous weight reduction.

Landscapes

  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
  • Portable Power Tools In General (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Automatic Assembly (AREA)
  • Emergency Lowering Means (AREA)
  • Earth Drilling (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Actuator (AREA)
  • Milling, Broaching, Filing, Reaming, And Others (AREA)

Description

Die Erfindung betrifft eine hydraulisch betriebene Schälvorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a hydraulically operated peeling device according to the preamble of claim 1.

Aus der DE-C 26 21 249 der Anmelderin ist ein hydraulisch betriebenes Unfall-Rettungsgerät mit Spreizschnabel bekannt. An die Spitzen des Spreizschnabels lassen sich verschiedene Werkzeuge einsetzen, so daß das Unfall-Rettungsgerät bei Verwendung einer Klemmbacke und einer Schälbacke auch dazu verwendet werden kann, in ein verunglücktes Fahrzeug ein Mannloch einzubringen, um den Rettungsmannschaften einen Zugang ins Fahrzeuginnere zu ermöglichen. In der Druckschrift HR 411 65/3D/E5 "Lukas Rettungssysteme" der Anmelderin ist auf dem Foto rechts unten auf der letzten Seite der Einsatz eines mit Klemmund Schälbacke versehenen Spreizers als Schälvorrichtung zum Einbringen eines Mannloches zu sehen. Die Klemm- und Schälbacken sind z.B. auf Seite 3 des Prospektes gezeigt und ihre Anwendung auf Seite 15, Pos. 509/510 beschrieben. Diese Rettungsgeräte haben sich in der Praxis vielfach bewährt.From the applicant's DE-C 26 21 249, a hydraulically operated accident rescue device with an expanding beak is known. Various tools can be used at the tips of the expanding beak, so that the accident rescue device can also be used to insert a manhole into an accident-damaged vehicle when using a clamping jaw and a peeling jaw, in order to enable the rescue teams to access the interior of the vehicle. The applicant's publication HR 411 65 / 3D / E5 "Lukas rescue systems" shows in the photo on the bottom right on the last page the use of a spreader with a clamping and peeling jaw as a peeling device for making a manhole. The clamping and peeling jaws are e.g. shown on page 3 of the brochure and its application on page 15, item 509/510. These rescue tools have proven themselves many times in practice.

Nachteilig hat sich dabei herausgestellt, daß auf Grund der Kinematik des Spreizers zu Beginn des Schälvorganges (die geschlossenen mit Klemm- und Schälbacke versehenen Arme des Spreizers werden dabei in ein zuvor separat erstelltes kleines Loch eingehängt, der Zylinder mit Druck beaufschlagt und während die Klemmbacke stehen bleibt schält der Arm mit der Schälbacke beim Aufspreizen einen Blechstreifen aus der Fahrzeugwand) die geringste Spreizkraft zur Verfügung steht, obwohl gerade da die höchste Kraft erforderlich ist, um das Blech zum Einreißen zu bringen. Außerdem wandern mit zunehmendem Öffnungsweg der Spreizarme die Klemm- und Schälbacken in das zu. schälende Material. Schließlich ist auch der Spreizweg begrenzt, so daß für große Öffnungen große und damit schwere Spreizer benötigt werden.It has been found to be disadvantageous that due to the kinematics of the spreader at the beginning of the peeling process (the closed arms of the spreader provided with clamping and peeling jaws are suspended in a small hole previously created separately, the cylinder is pressurized and while the jaw is standing if the arm with the peeling jaw peels off a sheet of metal from the vehicle wall when spreading open) the least amount of spreading force Is available, although it is precisely here that the highest force is required to tear the sheet. In addition, as the opening of the spreading arms increases, the clamping and peeling jaws move into it. peeling material. Finally, the spreading distance is limited, so that large and therefore heavy spreaders are required for large openings.

Aus der US-A-37 62 688 ist ein hydraulisch betriebenes Rettungsgerät bekannt, bei dem eine zweiteilige, an der Kolbenstange und am Zylindergehäuse angeordnete Schälspitze axial verschiebbar ist. Zum Einbringen der Erstöffnung wird das Rettungsgerät mit der Schälspitze nach Art einer Axt, in die zu öffnende Wand geschlagen. Es ist klar, daß damit nur relativ dünne Bleche (bis max. 1 mm) durchschlagen werden können.From US-A-37 62 688 a hydraulically operated rescue device is known in which a two-part peeling tip arranged on the piston rod and on the cylinder housing is axially displaceable. To make the first opening, the rescue device with the peeling tip is hammered into the wall to be opened in the manner of an ax. It is clear that only relatively thin sheets (up to a maximum of 1 mm) can be cut through.

Es ist deshalb Aufgabe der Erfindung, eine Schälvorrichtung nach dem Oberbegriff des Anspruchs 1 aufzuzeigen, die das Einbringen der Erstöffnung mit hydraulischer Kraft ermöglicht, wobei schon zu Beginn des Schälvorganges die maximale Kraft zur Verfügung steht, ein Hineinwandern der Klemm- und Schälbacken vermieden wird und die Vorrichtung trotz großer Betätigungswege leicht baut.It is therefore an object of the invention to provide a peeling device according to the preamble of claim 1, which enables the opening to be made with hydraulic force, the maximum force being available at the beginning of the peeling process, avoiding the clamping and peeling jaws from migrating in and builds the device easily despite large actuation distances.

Die Lösung dieser Aufgabe gelingt durch die im Anspruch 1 genannte Merkmalkombination, so daß mit der Schälvorrichtung auch die Erstöffnung hydraulisch unterstützt eingedrückt werden kann. Damit können auch größere Blechdicken durchdrungen werden. Dabei kann in vorteilhafter Weise die Schälbacke auf einem Schlitten angeordnet sein (Anspruch 2, 3 und 4) oder direkt bzw. über eine Verlängerung an der Kolbenstange (Anspruch 5, 6 und 7). Den dornartigen Aufsatz kann der Schlitten, die Schälbacke oder der Zylinderboden aufweisen.This object is achieved by the combination of features mentioned in claim 1, so that with the peeling device the first opening can also be hydraulically supported. It can also penetrate larger sheet thicknesses. The peeling jaw can advantageously be arranged on a slide (claims 2, 3 and 4) or directly or via an extension on the piston rod (claims 5, 6 and 7). The slide, the peeling jaw or the cylinder base can have the mandrel-like attachment.

Die Erfindung wird an einem Ausführungsbeispiel erläutert.

  • Figur 1 zeigt eine erfindungsgemäße Schälvorrichtung perspektivisch in Grundstellung zu Beginn des Schälvorgangs.
  • Figur 2 zeigt die Schälvorrichtung nach Figur 1 in Grundstellung vor dem 2. Hub
  • Figur 3 zeigt eine Schälvorrichtung nach Figur 1 mit einem an dem Schlitten angeordneten Dorn
  • Figur 4 zeigt eine erfindungsgemäße Schälvorrichtung mit einer an der Kolbenstange angeordneten Schälbacke in Grundstellung
  • Figur 5 zeigt eine Schälvorrichtung nach Figur 4 mit ausgefahrener Kolbenstange
  • Figur 6 zeigt eine Schälvorrichtung nach Figur 5 mit einer weiteren Klemmbacke, die am Zylinderboden angeordnet ist
  • Figur 7 zeigt eine Schälvorrichtung mit einer an einer Verlängerung angeordneten Schälbacke
  • Figur 8 zeigt eine Schälvorrichtung mit einem am Zylinderboden angeordneten Dorn
  • Figur 9 zeigt eine Schälvorrichtung beim Schälvorgang.
The invention is explained using an exemplary embodiment.
  • Figure 1 shows a peeling device according to the invention in perspective in the basic position at the beginning of the peeling process.
  • Figure 2 shows the peeling device according to Figure 1 in the basic position before the 2nd stroke
  • FIG. 3 shows a peeling device according to FIG. 1 with a mandrel arranged on the carriage
  • FIG. 4 shows a peeling device according to the invention with a peeling jaw arranged on the piston rod in the basic position
  • FIG. 5 shows a peeling device according to FIG. 4 with the piston rod extended
  • Figure 6 shows a peeling device according to Figure 5 with a further jaw, which is arranged on the cylinder bottom
  • FIG. 7 shows a peeling device with a peeling jaw arranged on an extension
  • Figure 8 shows a peeling device with a mandrel arranged on the cylinder bottom
  • Figure 9 shows a peeling device during the peeling process.

In Figur 1 ist der Hydraulikzylinder mit 1 bezeichnet. Er entspricht im Grundaufbau den bekannten Rettungszylindern, wie sie auf Seite 8 der vorgenannten Druckschrift der Anmelderin gezeigt sind. Am kolbenstangenseitigen Ende des Hydraulikzylinders befindet sich das Steuerventil 2. Am Zylinderboden 3 ist die Klemmbacke 4 befestigt. Ihr gegenüber befindet sich die Schälbacke 5, die auf einem Schlitten 6 befestigt ist, welcher von der Kolbenstange 7 beaufschlagt und axial verschiebbar ist.In Figure 1, the hydraulic cylinder is designated 1. In its basic structure, it corresponds to the known rescue cylinders, as shown on page 8 of the aforementioned publication by the applicant. The control valve 2 is located on the piston rod end of the hydraulic cylinder. The clamping jaw 4 is fastened to the cylinder base 3. Opposite is the peeling jaw 5, which is fastened on a slide 6, which is acted upon by the piston rod 7 and is axially displaceable.

Der Schlitten 6 ist auf dem Gehäuse des Hydraulikzylinders 1 geführt und hat noch einen weiteren Befestigungspunkt 8′ für die Schälbacke 5, wie dies in Figur 2 gezeigt ist.The carriage 6 is guided on the housing of the hydraulic cylinder 1 and has yet another attachment point 8 'for the peeling jaw 5, as shown in Figure 2.

Nach Figur 3 ist am Schlitten 6 ein Dorn 9 zum Eindrücken der Erstöffnung angeordnet. Eine andere Ausführung einer erfindungsgemäßen Schälvorrichtung zeigen Figur 4 und 5. Der Hydraulikzylinder 1 mit dem Steuerventil 2 und dem Zylinderboden 3 weist eine direkt an der Kolbenstange 7 befestigte Schälbacke 5 auf. Die Klemmbacke 4 ist am kolbenstangenseitigen Ende des Zylindergehäuses befestigt.According to Figure 3, a mandrel 9 is arranged on the carriage 6 for pressing in the first opening. Another embodiment of a peeling device according to the invention is shown in FIGS. 4 and 5. The hydraulic cylinder 1 with the control valve 2 and the cylinder base 3 has a peeling jaw 5 attached directly to the piston rod 7. The clamping jaw 4 is fastened to the end of the cylinder housing on the piston rod side.

Nach Figur 6 ist eine weitere Klemmbacke 10 am Zylinderboden 3 angeordnet, die beim zweiten Hub zum Einsatz kommt. Dadurch läßt sich der Betätigungsweg der Schälvorrichtung fast verdoppeln.According to FIG. 6, a further clamping jaw 10 is arranged on the cylinder base 3, which is used for the second stroke. As a result, the actuation path of the peeling device can be almost doubled.

Wie aus Figur 7 ersichtlich ist, läßt sich eine Erweiterung des Betätigungsweges auch durch die Verwendung einer Verlängerung 11 erreichen, welche beim zweiten Hub auf die Kolbenstange 7 gesteckt wird.As can be seen from FIG. 7, an extension of the actuation path can also be achieved by using an extension 11 which is plugged onto the piston rod 7 during the second stroke.

In der Ausführung nach Figur 8 ist am Zylinderboden 3 ein Dorn 9 angebracht, der zum Eindrücken der Erstöffnung dient.In the embodiment according to FIG. 8, a mandrel 9 is attached to the cylinder base 3 and serves to press in the first opening.

In der Figur 9 ist eine erfindungsgemäße Schälvorrichtung im Einsatz dargestellt. Die Wand in die ein Mannloch eingebracht werden soll ist mit 12 bezeichnet. Es können Blechdicken bis 7 mm geschält werden. Im ersten Arbeitsgang wird die Erstöffnung 13 eingebracht, indem z.B. die Schälvorrichtung nach Figur 8 mit ihrem Dorn 9 etwa senkrecht zur Ebene der Wand 12 angeordnet wird, wobei sich die Kolbenstange 7 an einem Widerlager (nicht gezeigt) abstützt. Nun wird der Hydraulikzylinder 1 mit Druck beaufschlagt, die Kolbenstange 7 fährt aus und drückt den Dorn 9 in die Wand 12, wodurch die Erstöffnung 13 entsteht. Der Dorn bzw. die Kolbenstange wird wieder eingefahren und die Schälvorrichtung mit der Klemmbacke 4 und der Schälbacke 5 in die Erstöffnung 13 eingehängt. Der Hydraulikzylinder wird nun wieder mit Druck beaufschlagt, wodurch die Kolbenstange 7 mit der Schälbacke 5 ausfährt und den Blechstreifen 14 aus der Wand 12 herausschält (Figur 9). Nachdem der erste Hub beendet ist wird die Kolbenstange wieder eingefahren und die Schälvorrichtung nach Figur 6 mit ihrer weiteren Klemmbacke 10 in die Erstöffnung 13 und den schon entstandenen Schlitz eingesetzt und der Hydraulikkolben 1 erneut mit Druck beaufschlagt, wodurch die Schälbacke 5 weiter nach vorne schält und den Schlitz verlängert. Falls erforderlich, kann in einem dritten Arbeitsgang die Kolbenstange 7 wieder eingefahren werden, die Verlängerung 11 aufgesteckt und mit einem weiteren Hub der Schlitz noch mehr verlängert werden. Ähnlich wird mit einer Schälvorrichtung nach Figur 1 bzw. 2 vorgegangen, in dem die Schälbacke je nach Bedarf in die entsprechenden Befestigungspunkte 8, 8′ am Schlitten 6 befestigt wird. Selbstverständlich kann der Dorn zum Einbringen der Erstöffnung 13 auch am Kopf des Schlittens 6 angeordnet sein, oder mit der Schälbacke kombiniert als Aufstecksatz ausgebildet sein.FIG. 9 shows a peeling device according to the invention in use. The wall into which a manhole is to be made is designated by 12. Sheet thicknesses up to 7 mm can be peeled. In the first working step, the first opening 13 is made, for example by arranging the peeling device according to FIG. 8 with its mandrel 9 approximately perpendicular to the plane of the wall 12, the piston rod 7 being in contact supports an abutment (not shown). Now the hydraulic cylinder 1 is pressurized, the piston rod 7 extends and presses the mandrel 9 into the wall 12, whereby the first opening 13 is created. The mandrel or the piston rod is retracted again and the peeling device with the clamping jaw 4 and the peeling jaw 5 is suspended in the first opening 13. The hydraulic cylinder is now pressurized again, whereby the piston rod 7 extends with the peeling jaw 5 and peels the sheet metal strip 14 out of the wall 12 (FIG. 9). After the first stroke has ended, the piston rod is retracted again and the peeling device according to FIG. 6 with its further clamping jaw 10 is inserted into the first opening 13 and the slot that has already been created, and the hydraulic piston 1 is pressurized again, whereby the peeling jaw 5 peels further forward and extended the slot. If necessary, the piston rod 7 can be retracted in a third operation, the extension 11 plugged in and the slot can be extended even further with a further stroke. The procedure is similar with a peeling device according to FIGS. 1 and 2, in which the peeling jaw is attached to the corresponding attachment points 8, 8 'on the slide 6 as required. Of course, the mandrel for introducing the first opening 13 can also be arranged on the head of the slide 6, or combined with the peeling jaw can be designed as a plug-on set.

Mit der erfindungsgemäßen Schälvorrichtung steht über den gesamten Kolbenhub von Beginn an die maximale Kraft des Hydraulikzylinders zur Verfügung. Wie ein Vergleich mit dem auf Seite 3 der o. g. Druckschrift gezeigten Spreizer zeigt, hat dieser einen Spreizweg an den Spitzen von 820 mm bei einer betriebsbereiten Masse von 28 kg und einer Spreizkraft von 60 - 80 kN. Eine Schälvorrichtung mit einem(Hydraulikzylinder der Type 12/300 (s. Seite 8 der o. g. Druckschrift) erzielt bei einer betriebsbereiten Masse von 13,5 kg und einer Druckkraft von 120 kN einen maximalen Verfahrweg von mindestens 600 mm (erster Hub 300 mm und + 2, Hub 300 mm) und bei Einsatz einer Verlängerung 11 lassen sich bis zu 1000 mm erreichen, also eine deutliche Leistungserhöhung bei gleichzeitiger Gewichtsverminderung. Eine kompakte Einheit.With the peeling device according to the invention, the maximum force of the hydraulic cylinder is available from the beginning over the entire piston stroke. As a comparison with the spreader shown on page 3 of the above-mentioned publication shows, this has a spreading path at the tips of 820 mm when ready for operation Mass of 28 kg and a spreading force of 60 - 80 kN. A peeling device with a (hydraulic cylinder type 12/300 (see page 8 of the above-mentioned document) achieves a maximum travel of at least 600 mm with an operational mass of 13.5 kg and a compressive force of 120 kN (first stroke 300 mm and + 2, stroke 300 mm) and when using an extension 11 up to 1000 mm can be achieved, ie a significant increase in performance with simultaneous weight reduction.

Claims (10)

  1. An hydraulically operated peeling device, preferably for the introduction of manholes into land-, water- or aircraft which have been involved in an accident, or in doors, rooves, walls and tanks, with an hydraulic cylinder (1), a clamping jaw (4) attached to the cylinder housing, an axially displaceable peeling jaw, able to be acted upon by the piston rod (7), and with a spike for pressing through the first opening, characterised in that the spike (9) for pressing through the first opening (13) is able to be pressed in by being acted upon by the hydraulic cylinder.
  2. An hydraulically operated peeling device according to Claim 1, characterised in that the clamping jaw (4) is attached to the cylinder base (3) and the peeling jaw (5) is arranged on a sliding carriage (6), which is axially displaceable by the piston rod (7).
  3. An hydraulically operated peeling device according to Claim 2, characterised in that the sliding carriage (9) is guided on the cylinder housing.
  4. An hydraulically operated peeling device according to Claim 3, characterised in that the sliding carriage (6) is provided with attachment points (8,8′) for the peeling jaw (5), in which at least one attachment point (8) is arranged at the end of the sliding carriage on the cylinder base side, and the other (8′) is arranged at the end on the piston rod side.
  5. An hydraulically operated peeling device according to Claim 1, characterised in that the peeling jaw (5) is attached to the piston rod (7) and the clamping jaw (4) is attached to the end of the cylinder housing on the piston rod side.
  6. An hydraulically operated peeling device according to Claim 5, characterised in that a further clamping jaw (10) is arranged on the cylinder base (3).
  7. An hydraulically operated peeling device according to Claim 5, characterised in that the peeling jaw (5) is attached to the piston rod (7) via an extension (11).
  8. An hydraulically operated peeling device according to any one of the preceeding claims, characterised in that the sliding carriage (6) has a spike (9) for pressing through the first opening (13).
  9. An hydraulically operated peeling device according to any one of the preceding claims, characterised in that the pealing jaw (5) has a spike (9) for pressing through the first opening (13).
  10. An hydraulically operated peeling device according to any one of the preceding claims, characterised in that the cylinder base (3) has a spike (9) for pressing through the first opening (13).
EP90114821A 1989-08-09 1990-08-02 Hydraulically actuated severing device Expired - Lifetime EP0412434B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3926279 1989-08-09
DE3926279A DE3926279C2 (en) 1989-08-09 1989-08-09 Hydraulically operated peeling device for making manholes in damaged land, water or aircraft

Publications (2)

Publication Number Publication Date
EP0412434A1 EP0412434A1 (en) 1991-02-13
EP0412434B1 true EP0412434B1 (en) 1993-03-03

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EP90114821A Expired - Lifetime EP0412434B1 (en) 1989-08-09 1990-08-02 Hydraulically actuated severing device

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US (1) US5060502A (en)
EP (1) EP0412434B1 (en)
JP (1) JP3094301B2 (en)
KR (1) KR0122002B1 (en)
CN (1) CN1025005C (en)
DE (1) DE3926279C2 (en)
PL (1) PL164163B1 (en)
RU (1) RU1807918C (en)

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DE9215062U1 (en) * 1992-11-05 1992-12-24 Fag Kugelfischer Georg Schaefer Kgaa, 8720 Schweinfurt, De
NL2004821C2 (en) * 2010-06-04 2011-12-06 Holmatro Ind Equip DEVICE WITH A CYLINDER, LIKE A SPREAD SPACER.
US8727317B2 (en) * 2011-05-23 2014-05-20 Lukas Hydraulik Gmbh Rescue cylinder
CN112894851B (en) * 2021-01-29 2022-09-06 贵州理工学院 Rescue robot

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US2010713A (en) * 1933-12-11 1935-08-06 Guy A Countryman Automobile repair tool
US2165503A (en) * 1935-02-04 1939-07-11 Blackhawk Mfg Co Portable hydraulic metal straightening machine
US3304059A (en) * 1965-04-06 1967-02-14 John W Siliznoff Force-applying means having adjustable coupling means for adjustably coupling the same to at least two objects to be forcibly relatively moved
FR1578862A (en) * 1968-04-16 1969-08-22
US3762688A (en) * 1971-10-28 1973-10-02 Crook D Hydraulically expanded hand tool for rescue purposes
DE2621249C3 (en) * 1976-05-13 1981-07-09 Frieseke & Hoepfner Gmbh, 8520 Erlangen Portable, hydraulically operated accident rescue device with splay beak
US4122699A (en) 1977-09-06 1978-10-31 Logsdon Cletus R Tool for removing dents from sheet metal
US4333330A (en) 1980-04-21 1982-06-08 H. K. Porter, Inc. Spreader tool
US4443001A (en) * 1982-05-19 1984-04-17 Haerer James P Hydraulically operated hand tool for forcing open doors

Also Published As

Publication number Publication date
CN1025005C (en) 1994-06-15
US5060502A (en) 1991-10-29
RU1807918C (en) 1993-04-07
KR0122002B1 (en) 1997-12-04
KR910004223A (en) 1991-03-28
JP3094301B2 (en) 2000-10-03
PL164163B1 (en) 1994-06-30
EP0412434A1 (en) 1991-02-13
DE3926279C2 (en) 1997-07-10
DE3926279A1 (en) 1991-02-14
JPH0379217A (en) 1991-04-04
CN1049290A (en) 1991-02-20
PL286187A1 (en) 1991-03-25

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