EP0339261B1 - Device for uncovering the reinforcement rods in concrete piles - Google Patents

Device for uncovering the reinforcement rods in concrete piles Download PDF

Info

Publication number
EP0339261B1
EP0339261B1 EP89105069A EP89105069A EP0339261B1 EP 0339261 B1 EP0339261 B1 EP 0339261B1 EP 89105069 A EP89105069 A EP 89105069A EP 89105069 A EP89105069 A EP 89105069A EP 0339261 B1 EP0339261 B1 EP 0339261B1
Authority
EP
European Patent Office
Prior art keywords
chisel
cutting edge
piston
cylinder
frame
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
EP89105069A
Other languages
German (de)
French (fr)
Other versions
EP0339261A2 (en
EP0339261A3 (en
Inventor
Bérczes Zsolt
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.)
Diaber AG
Original Assignee
Diaber AG
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
Priority claimed from CH1580/88A external-priority patent/CH675612A5/en
Priority claimed from CH423588A external-priority patent/CH676342A5/en
Application filed by Diaber AG filed Critical Diaber AG
Priority to AT89105069T priority Critical patent/ATE83702T1/en
Publication of EP0339261A2 publication Critical patent/EP0339261A2/en
Publication of EP0339261A3 publication Critical patent/EP0339261A3/en
Application granted granted Critical
Publication of EP0339261B1 publication Critical patent/EP0339261B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
    • B28D1/222—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising by pressing, e.g. presses
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
    • E02D9/005—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof removing the top of placed piles of sheet piles

Definitions

  • the present invention relates to a device for exposing the reinforcing bars of concrete piles, with a supporting device in the form of a box-shaped frame with a central passage for the pile to be processed and crushing tools arranged on the supporting device in the region of the central passage, each crushing tool using a piston cylinder -Aggregates is driven, wherein means are available to selectively supply a pressure fluid to the aggregate, the crushing tools being arranged on all sides distributed over the circumference of the central passage.
  • the piston-cylinder units are arranged horizontally, ie in the working position of the device. Each unit is equipped with a piston with a penetration tip. If the piston is pressurized by a pressure fluid, it penetrates into the respective concrete pile in order to burst open the concrete to expose the reinforcing iron. Accordingly, the piston-cylinder units must each be arranged in such a way that the tips mentioned penetrate into a pile to be machined in areas between the respective reinforcing bars, otherwise the reinforcing bars are damaged.
  • the circuit of the pressure fluid of the known device is such that the pistons were extended independently of one another, so that the device could not necessarily center around the concrete pile, so that the penetration points of the tips were not always between respective ones Reinforcing irons were produced, which in turn led to the risk of damage to reinforcing irons.
  • the aim of the invention is to remedy the disadvantages mentioned above.
  • the device according to the invention is characterized by the features of claim 1.
  • each breaking tool is designed as a rocker-shaped chisel with a cutting edge, which is at the end opposite the respective cutting edge on the piston Cylinder unit is articulated and is pivotally mounted in the frame at a point located between this articulation point and the cutting edge in the frame about an axis of rotation which runs at least approximately parallel to the longitudinal central axis of the frame.
  • the chisels and their piston-cylinder units can be pivoted in one plane (usually horizontal plane) at right angles to the longitudinal center axis of the frame and thus to the concrete pile.
  • reference numeral 3 denotes a box-shaped frame, which is, for example, a welded steel structure.
  • the longitudinal central axis of this frame 3 is designated by the reference number 11.
  • the frame 3 has a central passage 4 for a concrete post 2 to be processed, which is shown in dot-dash lines and has the greatest possible thickness in FIG. 1, but has a smaller thickness in FIG. 2 in another example.
  • the frame 3 has a square passage 4, see also FIG. 2.
  • the right-hand side of FIG. 1 shows the rest position and the left-hand side shows the working position of the unit 6.
  • the piston-cylinder unit 6 is articulated at the end 9 of a breaking tool 5.
  • This breaking tool 5 is a two-armed, rocker-shaped Chisel formed and has two cutting edges 7, 8 ( Figure 2).
  • the chisel 5 is mounted in the frame 3 at a point 10 located between its two ends.
  • the axis of rotation 14 of the rocker-shaped breaking tool 5 located at the point 10 extends at least approximately at right angles to the longitudinal central axis 11 of the frame 3.
  • the chisel 5 has the two lever arms 19 and 20 with respect to the point 10, ie with respect to the axis of rotation 14.
  • the lever arm 19 is longer as the lever arm 20.
  • the cutting edges 7, 8 of a chisel 5 lie at least approximately parallel to the axis of rotation 14 of this chisel 5.
  • the assembly 6 is articulated at the point 13 on the frame 3.
  • This point 13 is higher than the axis of rotation 14.
  • the piston-cylinder unit 6 is now arranged in such a way that its longitudinal center axis 12 is inclined to the longitudinal center axis 11 of the frame 3 and no longer runs at right angles thereto. This results in a considerable saving of space in the horizontal direction and, furthermore, each piston-cylinder unit 6 can be dimensioned so large that it can also exert the necessary high compressive force because the height of the frame 3 is practically no narrow limits.
  • each chisel 5 is fork-shaped and has two cutting edges 7, 8. This form of training allows a safe penetration into the concrete without destroying the reinforcement 1.
  • the supply of the hydraulic fluid to the four piston-cylinder units 6 contains a liquid quantity regulator 22, which ensures that the same quantity of hydraulic fluid is supplied to each piston-cylinder unit 6.
  • a liquid quantity regulator 22 ensures that the same quantity of hydraulic fluid is supplied to each piston-cylinder unit 6.
  • the breaking tool 5 is designed as a fork-shaped chisel and thus has two cutting edges 7, 8, which allows the chisel to penetrate deep into the concrete without damaging the reinforcement 1.
  • the width of the chisel 5 or of the cutting edges 7, 8 can be selected completely independently of the size of the piston-cylinder unit 6, with which a respective adaptation to predetermined distances between the reinforcing bars 1 can be carried out without further ado.
  • the controller for the hydraulic quantity ensures that all four units 6 and thus all crushing tools 5 each carry out the same stroke, so that automatic centering and no lateral displacement of the device relative to the pile 2 takes place.
  • FIGS 3 and 4 now show something in one on a larger scale, a chisel-shaped breaking tool 5, which is equipped with crushing members 15, 16.
  • the shattering members 15, 16 are plates arranged on the top of the breaking tool 5 and projecting therefrom, each with a cutting edge 17.
  • the cutting edge 17 runs parallel to the plane of the plate 15 or 16.
  • the plates with their cutting edges 17 are from the respective cutting edges 7, 8 arranged set back.
  • the cutting edges 17 run inclined to the upper side 18 of the breaking tool 5 and thus also inclined to the vertical 21.
  • the angle ⁇ is in the range from 0 to 30 °.
  • the vertical 21 is perpendicular to the top 18.
  • the cutting edge 17 runs, as can be seen from FIG. 3, inclined to the upper side 18.
  • the two end positions of the breaking tool 5 are shown in FIG. 1, and it is obvious that when the chisel-shaped breaking tool 5 is pivoted in, the cutting edges 17 of the shattering members 15, 16 at a changing angle on the part to be machined Apply pile section.
  • the force vectors due to the contact pressure of the shattering members 15, 16 must now prevail in the part of the pile sheave to be shattered, on the basis of which the pile sheave actually breaks. It has been found that the best result is achieved if the cutting edge 17 is inclined with respect to the vertical 21 at an angle in the range from 0 to 30 °. This is an angle in the range from 90 to 60 ° with respect to the side 18.
  • the angle ⁇ is chosen to be larger, ie the edge 17 has a relatively weak inclination with respect to the side 18, the vertically directed force vectors would predominate in the section of the pile to be separated, so that the pile washer would only be raised and not broken.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)

Description

Die vorliegende Erfindung betrifft eine Einrichtung zur Freilegung der Armierungseisen von Betonpfählen, mit einem Traggerät in Form eines kastenförmigen Rahmens mit einem mittigen Durchgang für den zu bearbeitenden Pfahl und auf dem Traggerät im Bereich des mittigen Durchgangs angeordneten Brechwerkzeugen, wobei jedes Brechwerkzeug mittels eines Kolben-Zylinder-Aggregates angetrieben wird, wobei Mittel vorhanden sind, um dem Aggregat wahlweise ein Druckfluid zuzuführen, wobei die Brechwerkzeuge allseitig über den Umfang des mittigen Durchgangs verteilt angeordnet sind.The present invention relates to a device for exposing the reinforcing bars of concrete piles, with a supporting device in the form of a box-shaped frame with a central passage for the pile to be processed and crushing tools arranged on the supporting device in the region of the central passage, each crushing tool using a piston cylinder -Aggregates is driven, wherein means are available to selectively supply a pressure fluid to the aggregate, the crushing tools being arranged on all sides distributed over the circumference of the central passage.

Bei einer solchen bekannten Einrichtung (EP-A-51837) zur Freilegung der Armierungseisen von Betonpfählen sind die Kolben-Zylinder-Aggregate liegend, d.h. in der Arbeitsstellung der Einrichtung horizontal verlaufend angeordnet. Jedes Aggregat ist dabei mit einem Kolben mit einer Eindringspitze ausgerüstet. Wird der Kolben durch ein Druckfluid beaufschlagt, dringt er in den jeweiligen Betonpfahl ein, um zwecks Freilegung der Armierungseisen den Beton aufzusprengen. Entsprechend müssen die Kolben-Zylinder-Aggregate jeweils derart verteilt angeordnet sein, dass die genannten Spitzen bei Bereichen zwischen jeweiligen Armierungseisen in einen zu bearbeitenden Pfahl eindringen, ansonsten die Armierungseisen beschädigt werden. Da der Abstand zwischen den Armierungseisen jeweils abhängig von den Querschnittsabmessungen eines Betonpfahles abhängt, muss entsprechend der jeweilige Abstand zwischen zwei Kolbenspitzen und folglich Kolben-Zylinder-Aggregaten jeweils neu festgelegt werden. Dies hat nun bedingt, dass ein jeweiliger Betrieb über eine grössere Anzahl unterschiedlicher solcher Einrichtungen verfügen musste, was offensichtlich die Lagerhalterung verteuert und hohe Kosten verursacht. Da, wie oben dargelegt, die Abstände zwischen Armierungseisen je nach der Dicke der Betonspfähle unterschiedlich sind, ist es nicht möglich, mittels einem und demselben Gerät, das für eine grösste Dicke ausgebildet ist, Betonpfähle mit kleineren Abmessungen zu bearbeiten, da jeweils nicht das gesamte Kolben-Zylinder-Aggregat verschiebbar ist. Weiter bedingt die liegende Anordnung der Kolben eine solche Raumbeanspruchung, dass einen kleinen gegenseitigen Abstand aufweisende Betonpfähle nicht mit der bekannten Einrichtung bearbeitet werden konnten.In such a known device (EP-A-51837) for exposing the reinforcing bars of concrete piles, the piston-cylinder units are arranged horizontally, ie in the working position of the device. Each unit is equipped with a piston with a penetration tip. If the piston is pressurized by a pressure fluid, it penetrates into the respective concrete pile in order to burst open the concrete to expose the reinforcing iron. Accordingly, the piston-cylinder units must each be arranged in such a way that the tips mentioned penetrate into a pile to be machined in areas between the respective reinforcing bars, otherwise the reinforcing bars are damaged. Because the distance between the reinforcing bars depends on the cross-sectional dimensions of a concrete pile, the respective distance between two piston tips and consequently piston-cylinder units must be redefined. This has now resulted in the fact that a respective company had to have a larger number of different such devices, which obviously makes the storage more expensive and causes high costs. Since, as explained above, the distances between reinforcing bars vary depending on the thickness of the concrete piles, it is not possible to machine concrete piles with smaller dimensions using one and the same device, which is designed for the greatest thickness, since not all of them Piston-cylinder unit is displaceable. Furthermore, the horizontal arrangement of the pistons requires such a space that concrete piles with a small mutual distance could not be processed with the known device.

Aufgrund der genannten horizontalen Anordnung der Kolben-Zylinder-Aggregate ist es nicht möglich gewesen, einen Betonpfahl bis zum Erdboden zu bearbeiten, so dass entweder eine Grabarbeit im Erdreich zur weiteren Freilegung des Betonpfahles oder dann eine manuelle Bearbeitung mittels Presslufthammer notwendig gewesen ist.Due to the above-mentioned horizontal arrangement of the piston-cylinder units, it was not possible to machine a concrete pile to the ground, so that either digging in the ground to further expose the concrete pile or then manual processing using a jackhammer was necessary.

Um die seitlichen Abmessungen der bekannten Einrichtung klein zu halten, musste man gezwungenerweise verhältnismässig kleine Kolben-Zylinder-Aggregate einsetzen, so dass die damit auf den jeweiligen Beton ausgeübte Kraft begrenzt gewesen ist. Weiter ist der Kreislauf des Druckfluids der bekannten Einrichtung derart, dass die Kolben unabhängig voneinander ausgefahren wurden, so dass sich die Einrichtung nicht unbedingt um den Betonpfahl zentrieren konnte, so dass die Eindringstellen der Spitzen nicht immer zwischen jeweiligen Armierungseisen erzeugt wurden, was wieder zur Gefahr der Beschädigung von Armierungseisen führte.In order to keep the lateral dimensions of the known device small, comparatively small piston-cylinder units had to be used, so that the force exerted on the respective concrete was limited. Furthermore, the circuit of the pressure fluid of the known device is such that the pistons were extended independently of one another, so that the device could not necessarily center around the concrete pile, so that the penetration points of the tips were not always between respective ones Reinforcing irons were produced, which in turn led to the risk of damage to reinforcing irons.

Ziel der Erfindung ist, die oben erwähnten Nachteile zu beheben.The aim of the invention is to remedy the disadvantages mentioned above.

Die erfindungsgemässe Einrichtung ist durch die Merkmale des Patentanspruches 1 gekennzeichnet.The device according to the invention is characterized by the features of claim 1.

Es ist zwar schon eine Einrichtung bekannt (FR-A-23 47 139, & DE-B-27 13 613), bei der jedes Brechwerkzeug als wippenförmig angeordneter Meissel mit einer Schneide ausgebildet ist, der bei dem der jeweiligen Schneide entgegengesetzten Ende am Kolben-Zylinder-Aggregat angelenkt und bei einer zwischen dieser Anlenkstelle und der Schneide gelegenen Stelle im Rahmen um eine Drehachse schwenkbar gelagert ist, die mindestens annähernd parallel zur Längsmittelachse des Rahmens verläuft. Hierdurch sind die Meissel und ihre Kolben-Zylinder-Aggregate in einer Ebene (üblicherweise Horizontalebene) rechtwinklig zur Längsmittelachse des Rahmens und damit zum Betonpfahl schwenkbar. Hierdurch könnten die Armierungseisen von Betonpfählen nicht freigelegt werden, sondern sie würden zerschnitten, da sich die Armierungseisen parallel zum Betonpfahlverlauf erstrecken. Diese bekannte Einrichtung dient somit auch nicht zum Freilegen der Armierungseisen von Betonpfählen, sondern sie dient zum Abschneiden des Betonpfahles mitsamt seinen Armierungseisen. Weiterhin ist bei dieser bekannten Einrichtung das gleiche eingangs erläuterte Platzproblem bei eng nebeneinander stehenden Pfählen oder beim gewünschten Bearbeiten eines Betonpfahles bis zum Erdboden vorhanden, wie bei der Einrichtung nach der EP-A-51 837, da die Kolben-Zylinder-Aggregate und die Brechwerkzeuge in einer horizontalen Ebene liegen und in dieser noch zusätzlich schwenkbar sind.A device is already known (FR-A-23 47 139, & DE-B-27 13 613), in which each breaking tool is designed as a rocker-shaped chisel with a cutting edge, which is at the end opposite the respective cutting edge on the piston Cylinder unit is articulated and is pivotally mounted in the frame at a point located between this articulation point and the cutting edge in the frame about an axis of rotation which runs at least approximately parallel to the longitudinal central axis of the frame. As a result, the chisels and their piston-cylinder units can be pivoted in one plane (usually horizontal plane) at right angles to the longitudinal center axis of the frame and thus to the concrete pile. As a result, the reinforcing irons of concrete piles could not be exposed, but would be cut because the reinforcing irons extend parallel to the course of the concrete piles. This known device is therefore not used to expose the reinforcement bars of concrete piles, but rather serves to cut off the concrete pile together with its reinforcement bars. Furthermore, in this known device there is the same space problem explained at the outset in the case of piles standing closely next to one another or in the desired processing of a concrete pile to the ground, as in the device according to EP-A-51 837, since the piston-cylinder units and the crushing tools lie in a horizontal plane and can also be pivoted in this.

Nachfolgend wird der Erfindungsgegenstand der Zeichnungen beispielsweise näher erläutert. Es zeigt:

  • Figur 1 eine vereinfachte vertikale Schnittansicht durch eine beispielsweise Ausführung einer Einrichtung zur Freilegung der Armierungseisen,
  • Figur 2 vereinfacht einen Schnitt entlang der Linie II-II der Figur 1, wobei aus Gründen der Klarheit einige Teile weggelassen sind,
  • Figur 3 eine Seitenansicht eines Meissels mit einem Zertrümmerungsglied, und
  • Figur 4 eine Draufsicht auf den in der Figur 3 gezeigten Meissel.
The subject matter of the drawings is explained in more detail below, for example. It shows:
  • FIG. 1 shows a simplified vertical sectional view through an example embodiment of a device for exposing the reinforcing bars,
  • FIG. 2 simplifies a section along the line II-II of FIG. 1, some parts being omitted for the sake of clarity,
  • Figure 3 is a side view of a chisel with a shattering member, and
  • Figure 4 is a plan view of the chisel shown in Figure 3.

In der Figur 1 bezeichnet die Bezugsziffer 3 einen kastenförmigen Rahmen, der beispielsweise eine geschweisste Stahlkonstruktion ist. Die Längsmittelachse dieses Rahmens 3 ist mit der Bezugsziffer 11 bezeichnet. Der Rahmen 3 weist einen mittigen Durchgang 4 für einen strichpunktiert eingezeichneten, zu bearbeitenden Betonpfahl 2 auf, der in Figur 1 eine grösstmögliche Dicke hat, in Figur 2 aber bei einem anderen Beispiel eine geringere Dicke hat. Der Rahmen 3 weist einen quadratischen Durchgang 4 auf, siehe hierzu auch Figur 2. Bei jeder Seite desselben ist ein Kolben-Zylinder-Aggregat 6 vorhanden, wie dies in der Figur 1 dargestellt ist. Dabei zeigt die rechte Seite der Figur 1 die Ruhestellung und die linke Seite die Arbeitsstellung des Aggregates 6. Unten ist das Kolben-Zylinder-Aggregat 6 am Ende 9 jeweils eines Brechwerkzeuges 5 angelenkt. Dieses Brechwerkzeug 5 ist als zweiarmiger, wippenförmiger Meissel ausgebildet und weist zwei Schneiden 7, 8 (Figur 2) auf. Der Meissel 5 ist bei einer zwischen seinen zwei Enden gelegenen Stelle 10 im Rahmen 3 gelagert. Die an der Stelle 10 liegende Drehachse 14 des wippenförmigen Brechwerkzeuges 5 verläuft dabei mindestens annähernd rechtwinklig zur Längsmittelachse 11 des Rahmens 3. Der Meissel 5 hat die beiden Hebelarme 19 und 20 bezüglich der Stelle 10, d.h. bezüglich der Drehachse 14. Der Hebelarm 19 ist länger als der Hebelarm 20. Die Schneiden 7, 8 eines Meissels 5 liegen zumindest annähernd parallel zur Drehachse 14 dieses Meissels 5. Oben ist das Aggregat 6 an der Stelle 13 am Rahmen 3 angelenkt. Diese Stelle 13 liegt höher als die Drehachse 14. Im Gegensatz zu bekannten Einrichtungen ist nun das Kolben-Zylinder-Aggregat 6 derart angeordnet, dass dessen Längsmittelachse 12 geneigt zur Längsmittelachse 11 des Rahmens 3 und nicht mehr rechtwinklig dazu verläuft. Dies ergibt eine beträchtliche Raumersparnis in horizontaler Richtung und weiterhin kann jedes Kolben-Zylinder-Aggregat 6 derart gross dimensioniert werden, dass es auch die notwendig grosse Druckkraft aufbringen kann, weil der Höhe des Rahmens 3 praktisch keine engen Grenzen gesetzt sind.In Figure 1, reference numeral 3 denotes a box-shaped frame, which is, for example, a welded steel structure. The longitudinal central axis of this frame 3 is designated by the reference number 11. The frame 3 has a central passage 4 for a concrete post 2 to be processed, which is shown in dot-dash lines and has the greatest possible thickness in FIG. 1, but has a smaller thickness in FIG. 2 in another example. The frame 3 has a square passage 4, see also FIG. 2. There is a piston-cylinder unit 6 on each side of the same, as shown in FIG. The right-hand side of FIG. 1 shows the rest position and the left-hand side shows the working position of the unit 6. At the bottom, the piston-cylinder unit 6 is articulated at the end 9 of a breaking tool 5. This breaking tool 5 is a two-armed, rocker-shaped Chisel formed and has two cutting edges 7, 8 (Figure 2). The chisel 5 is mounted in the frame 3 at a point 10 located between its two ends. The axis of rotation 14 of the rocker-shaped breaking tool 5 located at the point 10 extends at least approximately at right angles to the longitudinal central axis 11 of the frame 3. The chisel 5 has the two lever arms 19 and 20 with respect to the point 10, ie with respect to the axis of rotation 14. The lever arm 19 is longer as the lever arm 20. The cutting edges 7, 8 of a chisel 5 lie at least approximately parallel to the axis of rotation 14 of this chisel 5. The assembly 6 is articulated at the point 13 on the frame 3. This point 13 is higher than the axis of rotation 14. In contrast to known devices, the piston-cylinder unit 6 is now arranged in such a way that its longitudinal center axis 12 is inclined to the longitudinal center axis 11 of the frame 3 and no longer runs at right angles thereto. This results in a considerable saving of space in the horizontal direction and, furthermore, each piston-cylinder unit 6 can be dimensioned so large that it can also exert the necessary high compressive force because the height of the frame 3 is practically no narrow limits.

Aus der Figur 2 ist ersichtlich, dass jeder Meissel 5 gabelförmig ausgebildet ist und zwei Schneiden 7, 8 aufweist. Diese Ausbildungsform erlaubt ein sicheres Eindringen in den Beton, ohne die Armierung 1 zu zerstören.It can be seen from FIG. 2 that each chisel 5 is fork-shaped and has two cutting edges 7, 8. This form of training allows a safe penetration into the concrete without destroying the reinforcement 1.

Die Zufuhr des Hydraulikfluides zu den vier Kolben-Zylinder-Aggregaten 6 enthält einen Flüssigkeitsmengenregler 22, der sicherstellt, dass jedem Kolben-Zylinder-Aggregat 6 jeweils dieselbe Hydraulikfluidmenge zugeführt wird. Die Folge davon ist, dass beim Aufbringen des Hydraulikfluids auf die vier Kolben-Zylinder-Aggregate 6 der Hub aller vier Kolben derselbe bleibt, so dass die Einrichtung um den jeweiligen Betonpfahl 2 zentriert wird. Falls nämlich der Hub nicht gleich ist, könnte z.B. das in der Figur 2 links liegende Brechwerkzeug 5 vor dem Eindringen in den Beton einen grösseren Hub durchführen als das diesem gegenüber, also rechtsliegende Brechwerkzeug. Dies würde eine Verschiebung des Rahmens 3 bezüglich des Pfahles 2 in der Figur 2 nach links bewirken, so dass die Schneiden 7, 8 der in Figur 2 oben und unten liegenden Brechwerkzeuge 5 nicht bei den gezeichneten Stellen, sondern etwas nach links verschoben in den Pfahl 2 eindringen würden, so dass eine Beschädigung der Armierungsleisten 1 auftreten würde.The supply of the hydraulic fluid to the four piston-cylinder units 6 contains a liquid quantity regulator 22, which ensures that the same quantity of hydraulic fluid is supplied to each piston-cylinder unit 6. The consequence of this is that when the hydraulic fluid is applied to the four piston-cylinder units 6, the stroke of all four pistons remains the same that the device is centered around the respective concrete pile 2. If the stroke is not the same, the breaking tool 5 on the left in FIG. 2 could, for example, carry out a larger stroke before penetrating the concrete than the one opposite it, that is to say on the right-hand breaking tool. This would cause the frame 3 to be shifted to the left with respect to the pile 2 in FIG. 2, so that the cutting edges 7, 8 of the breaking tools 5 located at the top and bottom in FIG. 2 do not shift to the left at the points shown, but somewhat to the left 2 would penetrate, so that damage to the reinforcing strips 1 would occur.

Es ist somit nicht mehr notwendig, über mehrere solcher Einrichtungen unterschiedlicher Grösse zu verfügen und aus denselben eine, der jeweiligen Betonpfahldicke abmessungsgemäss angepasste auszuwählen. Die einzige, möglicherweise notwendige Aenderung besteht im Austausch der jeweiligen Brechwerkzeuge 5 (bei gleichbleibenden Kolben-Zylinder-Aggregaten), um eine lediglich beim Bereich der Schneiden 7, 8 notwendige Anpassung an die Abstände jeweiliger Armierungseisen 1 zu erzielen.It is therefore no longer necessary to have several such devices of different sizes and to select one that is dimensionally adapted to the respective concrete pile thickness. The only change that may be necessary is to replace the respective crushing tools 5 (with the piston-cylinder units remaining the same) in order to achieve an adjustment to the spacing of the respective reinforcing bars 1 that is only necessary in the area of the cutting edges 7, 8.

Aus der obigen Beschreibung der Ausführung ergeben sich mehrere Vorteile derselben. Dadurch, dass die Kolben-Zylinder-Aggregate 6 nicht mehr in einer Horizontalebene liegen, sondern etwas schräg von unten nach oben verlaufen, wird eine sehr schmale Konstruktion erreicht, so dass verhältnismässig nahe nebeneinander stehende Betonpfähle ohne weiteres bearbeitet werden können. Die in nahezu vertikaler Richtung wirkende Kraft des Aggregates 6 wird über das als zweiarmiger Hebel ausgebildete Brechwerkzeug 5 entsprechend der Uebersetzung der beiden Hebelarme 19 und 20 mit verstärkter Kraft auf den Betonpfahl 2 umgelenkt. Die Einrichtung weist vier um die zentrale Oeffnung 4 des Rahmens 3 angeordnete Brechwerkzeuge 5 auf, welches eine einwandfreie Zentrierung der Einrichtung relativ zu einem zu bearbeitenden Betonpfahl 2 erlaubt. Das Brechwerkzeug 5 ist als gabelförmiger Meissel ausgebildet und hat somit zwei Schneiden 7, 8, welches erlaubt, dass der Meissel tief in den Beton eindringen kann, ohne die Armierung 1 zu beschädigen. Die Breite der Meissel 5, bzw. der Schneiden 7, 8 kann vollständig unabhängig von der Grösse des Kolben-Zylinder-Aggregates 6 gewählt werden, womit eine jeweilige Anpassung an vorgegebene Abstände der Armierungseisen 1 ohne weiteres durchgeführt werden kann. Durch den Regler für die Hyraulikmenge ist sichergestellt, dass alle vier Aggregate 6 und somit alle Brechwerkzeuge 5 jeweils denselben Hub durchführen, so dass eine automatische Zentrierung und keine seitliche Verschiebung der Einrichtung gegenüber dem Pfahl 2 erfolgt. Schliesslich ist aus der rechtsliegenden Seite der Figur 1 ersichtlich, dass beim Ansetzen der Schneiden 7, 8 an einen Betonpfahl 2, die Schneiden 7, 8 den tiefesten Teil der Einrichtung bilden, so dass weder Grabarbeit noch Presslufthämmer eingesetzt werden müssen, um den Betonpfahl 2 bis zum Erdbodenniveau zu bearbeiten.Several advantages of the embodiment result from the above description of the embodiment. The fact that the piston-cylinder units 6 no longer lie in a horizontal plane, but rather run obliquely from bottom to top, results in a very narrow construction, so that relatively close concrete piles can be easily worked on. The force of the unit 6, which acts in an almost vertical direction, is deflected onto the concrete pile 2 with increased force via the breaking tool 5, which is designed as a two-armed lever, in accordance with the translation of the two lever arms 19 and 20. The facility has four crushing tools 5 arranged around the central opening 4 of the frame 3, which allows the device to be perfectly centered relative to a concrete pile 2 to be processed. The breaking tool 5 is designed as a fork-shaped chisel and thus has two cutting edges 7, 8, which allows the chisel to penetrate deep into the concrete without damaging the reinforcement 1. The width of the chisel 5 or of the cutting edges 7, 8 can be selected completely independently of the size of the piston-cylinder unit 6, with which a respective adaptation to predetermined distances between the reinforcing bars 1 can be carried out without further ado. The controller for the hydraulic quantity ensures that all four units 6 and thus all crushing tools 5 each carry out the same stroke, so that automatic centering and no lateral displacement of the device relative to the pile 2 takes place. Finally, it can be seen from the right-hand side of FIG. 1 that when the cutting edges 7, 8 are attached to a concrete pile 2, the cutting edges 7, 8 form the deepest part of the device, so that neither digging work nor pneumatic hammers have to be used to move the concrete pile 2 to work on the ground level.

Mit der Einrichtung können dicke scheibenförmige Abschnitte von armierten Betonpfählen abgetrennt werden. Der Höhe der abtrennbaren, scheibenförmigen Scheibenstücke eines jeweiligen Pfahls sind aber Grenzen gesetzt, da die abgetrennte Pfahlscheibe über die Armierungseisen 1 nach oben abgezogen werden muss. Ist diese Kraft zu gross, können die Armierungseisen abreissen. Damit dies nicht passiert, sollten die abgetrennten Pfahlscheiben vor dem Abziehen von den Armierungseisen 1 zerbrochen werden.With the device, thick disc-shaped sections can be separated from reinforced concrete piles. The height of the separable, disc-shaped disc pieces of a respective pile is limited, however, since the separated pile disc must be pulled upwards via the reinforcing bars 1. If this force is too great, the reinforcement bars can tear off. To prevent this from happening, the separated pile disks should be broken before being removed from the reinforcing bars 1.

Die Figuren 3 und 4 zeigen nun in einem etwas grösseren Massstab ein meisselförmiges Brechwerkzeug 5, welches mit Zetrümmerungsgliedern 15, 16 ausgerüstet ist. Die Zertrümmerungsglieder 15, 16 sind auf der Oberseite des Brechwerkzeuges 5 angeordnete und davon abstehende Platten mit jeweils einer Schneidenkante 17. Die Schneidenkante 17 verläuft parallel zur Ebene der Platte 15 oder 16. Die Platten mit ihren Schneidenkanten 17 sind von den jeweiligen Schneiden 7, 8 zurückversetzt angeordnet. Die Schneidenkanten 17 verlaufen geneigt zur Oberseite 18 des Brechwerkzeuges 5 und damit auch geneigt zur Vertikalen 21. Der Winkel α liegt im Bereich von 0 bis 30°. Die Vertikale 21 liegt rechtwinklig zur Oberseite 18.Figures 3 and 4 now show something in one on a larger scale, a chisel-shaped breaking tool 5, which is equipped with crushing members 15, 16. The shattering members 15, 16 are plates arranged on the top of the breaking tool 5 and projecting therefrom, each with a cutting edge 17. The cutting edge 17 runs parallel to the plane of the plate 15 or 16. The plates with their cutting edges 17 are from the respective cutting edges 7, 8 arranged set back. The cutting edges 17 run inclined to the upper side 18 of the breaking tool 5 and thus also inclined to the vertical 21. The angle α is in the range from 0 to 30 °. The vertical 21 is perpendicular to the top 18.

Wenn nun im Betrieb die Brechwerkzeuge 5 in den abzubrechenden Betonpfahl 2 eindringen, wird aufgrund der durch die Schneiden 7, 8 ausgeübten Kräfte ein scheibenförmiger Abschnitt des Betonpfahles 2 mit einem etwa horizontal verlaufenden Bruchriss abgetrennt. Sobald jedoch die Schneiden 7, 8 um diejenige Strecke in den Betonpfahl eingedrungen sind, um welche die Zertrümmerungsglieder 15, 16 zurückversetzt sind, beginnen die Schneidenkanten 17 auf die abzutrennende Pfahlscheibe einzuwirken. Diese von allen Seiten her Druckkräfte auf die Pfahlscheibe ausübenden Schneidenkanten 17 bewirken nun, dass die vom Pfahl durch die Schneiden 7, 8 sich im Ablösen befindliche Pfahlscheibe zerbrochen wird, so dass diese zerbrochene Pfahlscheibe mit geringer Kraft von den Armierungseisen 1 abgezogen werden kann.If the crushing tools 5 now penetrate into the concrete pile 2 to be broken off during operation, a disc-shaped section of the concrete pile 2 with an approximately horizontal fracture crack is separated due to the forces exerted by the cutting edges 7, 8. However, as soon as the cutting edges 7, 8 have penetrated the concrete pile by the distance by which the shattering members 15, 16 are set back, the cutting edges 17 begin to act on the pile disk to be separated. These cutting edges 17 exerting pressure forces from all sides on the pile disc now cause the pile disc which is in the process of being detached from the pile by the cutting edges 7, 8 to be broken, so that this broken pile disc can be pulled off the reinforcing bars 1 with little force.

Die Schneidenkante 17 verläuft, wie aus der Figur 3 ersichtlich ist, geneigt zur Oberseite 18. In der Figur 1 sind die zwei Endstellungen des Brechwerkzeuges 5 dargestellt, und es ist offensichtlich, dass beim Einschwenken des meisselförmigen Brechwerkzeuges 5 die Schneidenkanten 17 der Zertrümmerungsglieder 15, 16 unter einem wechselnden Winkel am zu bearbeitenden Pfahlabschnitt anliegen. Jetzt müssen die durch den Auflagedruck der Zertrümmerungsglieder 15, 16 im zu zertrümmernden Teil der Pfahlscheibe Kraftvektoren vorherrschen, aufgrund welcher ein Zerbrechen der Pfahlscheibe tatsächlich stattfindet. Es wurde festgestellt, dass das beste Ergebnis erreicht wird, wenn die Schneidenkante 17 bezüglich der Vertikalen 21 in einem Winkel im Bereich von 0 bis 30° geneigt ist. Das ist ein Winkel im Bereich von 90 bis 60° bezüglich der Seite 18. Falls der Winkel α grösser gewählt wird, die Kante 17 also eine verhältnismässig schwache Neigung bezüglich der Seite 18 aufweist, würden im abzutrennenden Abschnitt des Pfahles die vertikal gerichteten Kraftvektoren überwiegen, so dass die Pfahlscheibe lediglich angehoben und nicht zerbrochen würde.The cutting edge 17 runs, as can be seen from FIG. 3, inclined to the upper side 18. The two end positions of the breaking tool 5 are shown in FIG. 1, and it is obvious that when the chisel-shaped breaking tool 5 is pivoted in, the cutting edges 17 of the shattering members 15, 16 at a changing angle on the part to be machined Apply pile section. The force vectors due to the contact pressure of the shattering members 15, 16 must now prevail in the part of the pile sheave to be shattered, on the basis of which the pile sheave actually breaks. It has been found that the best result is achieved if the cutting edge 17 is inclined with respect to the vertical 21 at an angle in the range from 0 to 30 °. This is an angle in the range from 90 to 60 ° with respect to the side 18. If the angle α is chosen to be larger, ie the edge 17 has a relatively weak inclination with respect to the side 18, the vertically directed force vectors would predominate in the section of the pile to be separated, so that the pile washer would only be raised and not broken.

Claims (13)

  1. Apparatus for exposing the reinforcing bars (1) of concrete pillars (2), with a supporting structure in form of a box-shaped frame (3) with a central passage (4) for receipt of the pillar (2) to be worked and crushing tools (5) located at the area of the central passage, whereby each crushing tool is driven by means of a piston-cylinder-device (6), whereby means are present in order to selectively feed a pressurized fluid to the device (6), whereby the crushing tools (5) are located distributed at all sides over the circumference of the central passage (4), characterized in that each crushing tool (5) is designed as a rocker-like arranged chisel with at least one cutting edge (7, 8) which is pivotably mounted to a piston-cylinder-device (6) at the end (9) opposite the respective cutting edge (7, 8) and is pivotably supported in the frame (3) at a location (10) between said pivotal point and the cutting edge (7, 8) to pivot around a pivot axis (14) extending at least approximately perpendicularly to the longitudinal center axis (11) of the frame (3).
  2. Apparatus according to claim 1, characterized in that the piston-cylinder-device (6) pivotably mounted at one end (9) to the chisel (5) is pivotably mounted at the other end to the box-shaped frame (3) in such a manner (13) that its longitudinal center axis (12) extends obliquely relative to the longitudinal center axis (11) of the frame (3).
  3. Apparatus according to claim 1, characterized in that the box-shaped frame (3) comprises a square through passage (4), whereby a respective chisel (5) with the piston-cylinder-device (6) belonging thereto is located at each side thereof.
  4. Apparatus according to claim 1, characterized in that each chisel (5) is forked and designed with two respective cutting edges (7, 8).
  5. Apparatus according to claim 1, characterized in that the means (23, 24) for the supply of the pressurized fluid comprise a fluid mass flow controller (22) which guarantees that the same respective mass of fluid is fed to all respective piston-cylinder-devices (6).
  6. Apparatus according to claim 1, characterized in that the horizontal pivot axis (14) is located in the operating state of the apparatus higher than the cutting edges (7, 8), such that when the cutting edges (7, 8) are applied onto a pillar (2), the cutting edges attain a position located at the bottom end of the entire apparatus.
  7. Apparatus according to claim 1, characterized in that the chisel (5) is a double arm lever, and in that the lever arm (19) pivotably mounted to the piston-cylinder-device (6) is longer than the lever arm (20) having the cutting edge (7, 8).
  8. Apparatus according to claim 2, characterized in that the cutting edge (7, 8) of each chisel (5) is arranged at least approximately parallel to the pivot axis (14) of the chisel (5) having this cutting edge (7, 8).
  9. Apparatus according to claim 1, characterized in that the pivotal point (13) of the piston-cylinder-device (6) supported at the frame (3) is located above the pivot axis (14) of the chisel (5).
  10. Apparatus according to claim 1, characterized in that each chisel (5) comprises at least one crushing member (15, 16) located rearwards of its cutting edge (7, 8) and having a cutting edge (17) adapted to act onto a respective concrete pillar and extending inclined relative to the cutting edge (7, 8).
  11. Appparatus according to claim 10, characterized in that each crushing member (15, 16) is designed as a plate projecting from the chisel (5), of which the cutting edge (17) extends parallel to the plane of the plate.
  12. Apparatus according to claim 10 or 11, characterized in that the cutting edge (17) extends inclined away from the corresponding cutting edge (7, 8) of the chisel (5).
  13. Apparatus according to one of the claims 10 to 12, characterized in that the cutting edge (17) of the crushing member (17) is inclined at an angle (α) relative to a vertical line (21) extending perpendicularly to the upper side (18) of the chisel (5), and in that the angle (α) is in the range between 0° and 30°.
EP89105069A 1988-04-27 1989-03-21 Device for uncovering the reinforcement rods in concrete piles Expired - Lifetime EP0339261B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89105069T ATE83702T1 (en) 1988-04-27 1989-03-21 DEVICE FOR EXPOSING THE REBARS OF CONCRETE PILES.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1580/88A CH675612A5 (en) 1988-04-27 1988-04-27 Concrete pile reinforcement exposure mechanism
CH1580/88 1988-04-27
CH4235/88 1988-04-27
CH423588A CH676342A5 (en) 1988-11-15 1988-11-15 Concrete pile reinforcement exposure mechanism

Publications (3)

Publication Number Publication Date
EP0339261A2 EP0339261A2 (en) 1989-11-02
EP0339261A3 EP0339261A3 (en) 1990-10-31
EP0339261B1 true EP0339261B1 (en) 1992-12-23

Family

ID=25688064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89105069A Expired - Lifetime EP0339261B1 (en) 1988-04-27 1989-03-21 Device for uncovering the reinforcement rods in concrete piles

Country Status (9)

Country Link
US (1) US5007593A (en)
EP (1) EP0339261B1 (en)
JP (1) JPH01315562A (en)
AU (1) AU626843B2 (en)
BR (1) BR8901969A (en)
CA (1) CA1320353C (en)
DE (1) DE58903074D1 (en)
PH (1) PH25764A (en)
RU (1) RU2023814C1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258627B (en) * 1991-08-16 1995-05-17 Roxbury Ltd Improvements in or relating to pile cutters
JP2650854B2 (en) * 1994-07-04 1997-09-10 有限会社 エス・ケー工業 Attachments for construction machinery
GB2307504B (en) * 1996-03-22 1998-05-20 Robert Arthur Merritt Method of breaking concrete piles
GB9822265D0 (en) * 1998-10-14 1998-12-09 Roxbury Ltd Improvements in or relating to pile cutters
GB0425406D0 (en) * 2004-11-18 2004-12-22 Shanks John Method for breaking down concrete piles
WO2010133862A2 (en) * 2009-05-19 2010-11-25 Michael John Williams Pile cropping apparatus
GB2519380B (en) 2013-10-21 2015-12-23 Astra Site Services Ltd Pile cropping device
CN104314079B (en) * 2014-10-11 2016-05-18 北京市政路桥股份有限公司 Armored concrete pile crown shearing-crushing device
GB2563359B (en) * 2016-03-18 2022-03-02 Creative Crushers Ltd Pile croppers and methods for cutting piles
JP6588502B2 (en) * 2017-06-29 2019-10-09 株式会社横山基礎工事 Dismantling method for underground foundation pile
RU198943U1 (en) * 2019-12-04 2020-08-04 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ярославский государственный технический университет" ФГБОУВО "ЯГТУ" Equipment for cutting reinforced concrete piles
CN113856797B (en) * 2021-09-22 2022-11-11 六安中科聚盆机械有限公司 Jaw crushing equipment

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3056267A (en) * 1961-10-24 1962-10-02 Columbus Construction Company Method and apparatus for removing from submerged sites portions of previously drivenpiles
US3392719A (en) * 1965-06-03 1968-07-16 Clanton Machine for splitting concrete blocks
GB1290374A (en) * 1969-12-29 1972-09-27
US3888287A (en) * 1974-04-10 1975-06-10 Deere & Co Blade for tree shear having vertically swingable blade support arms
SE410633B (en) * 1976-04-05 1979-10-22 Skanska Cementgjuteriet Ab DEVICE FOR CUTTING REINFORCED CONCRETE PILLARS
US4168729A (en) * 1977-11-16 1979-09-25 The United States Of America As Represented By The Secretary Of The Navy Underwater self-gripping pile cutting device
US4180047A (en) * 1978-07-06 1979-12-25 Bertelson George H Above and below water and land pile cutting apparatus and method
CH649115A5 (en) * 1980-11-12 1985-04-30 Diaber Holding Ag DEVICE FOR TREATMENT OF PILES.
JPS6062373A (en) * 1983-09-16 1985-04-10 重水　昭彦 Concrete crusher

Also Published As

Publication number Publication date
EP0339261A2 (en) 1989-11-02
EP0339261A3 (en) 1990-10-31
CA1320353C (en) 1993-07-20
DE58903074D1 (en) 1993-02-04
AU3228389A (en) 1989-11-02
US5007593A (en) 1991-04-16
BR8901969A (en) 1989-12-05
PH25764A (en) 1991-10-18
JPH01315562A (en) 1989-12-20
AU626843B2 (en) 1992-08-13
RU2023814C1 (en) 1994-11-30

Similar Documents

Publication Publication Date Title
EP0339261B1 (en) Device for uncovering the reinforcement rods in concrete piles
AT392119B (en) BREWING MACHINE
DE2543769C3 (en) Crushing machine with a rotor rotating in a housing and a tool fastened in the housing
EP0969932A1 (en) Crushing machine housing
EP0065276B1 (en) Splitting device for plaster and wall-stones
EP0796950B1 (en) Method and apparatus for exchanging a manhole frame installed in an asphalt layer
DE4016485C2 (en) Rock slitting machine
DE3842891A1 (en) ROTATIONAL DRILLING METHOD AND ROTATIONAL DRILLING DEVICE FOR CARRYING OUT THE METHOD
DE3015913A1 (en) Cutting press for thin metal - has upper cutter on ram with side guides, forced down by pistons with spherical joints
DE2938777C2 (en)
DE3119693C2 (en) Paver and brick splitting device
DE2903364C2 (en)
DE69506676T2 (en) Tree harvester with hammer
DE2934310A1 (en) DEVICE FOR GUIDING RAMM GOODS, IN PARTICULAR BOARDS, CHANNEL DIELS AND THE LIKE, ON THE MAKER OF A RAMM DEVICE
CH676342A5 (en) Concrete pile reinforcement exposure mechanism
DE2846442A1 (en) METHOD AND DEVICE FOR CREATING IN PARTICULAR PLUMB RIGHT BASE HOLES
CH675612A5 (en) Concrete pile reinforcement exposure mechanism
DE2606858B1 (en) Eccentrically driven crushing jaws - has variable throughput provided by operating crusher in differently tilted positions
EP0051837A1 (en) Apparatus for the treatment of piles
EP4112816B1 (en) Underground diaphragm and method for creating a slit in the ground
DE3217572C2 (en) Device for loosening rock
DE895883C (en) Device for preventing the formation of dust on mining machines in mining
EP4279659A1 (en) Underground diaphragm and method for creating a slit in the ground
EP0102519B1 (en) Paving stone or brick splitting device
DE4334421C2 (en) Device for coupling and tensioning saw blades in a saw blade support frame of a machine for sawing hard stone materials

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

17P Request for examination filed

Effective date: 19910420

17Q First examination report despatched

Effective date: 19911223

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB GR IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19921223

Ref country code: FR

Effective date: 19921223

Ref country code: ES

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19921223

Ref country code: BE

Effective date: 19921223

Ref country code: GB

Effective date: 19921223

Ref country code: SE

Effective date: 19921223

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19921223

REF Corresponds to:

Ref document number: 83702

Country of ref document: AT

Date of ref document: 19930115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58903074

Country of ref document: DE

Date of ref document: 19930204

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19930321

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930331

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19930331

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930428

Year of fee payment: 5

EN Fr: translation not filed
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 19921223

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19941001

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19941201

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19990325

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20000331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL