EP1204800B1 - Procede et engin pour produire des surfaces de sol - Google Patents

Procede et engin pour produire des surfaces de sol Download PDF

Info

Publication number
EP1204800B1
EP1204800B1 EP00947983A EP00947983A EP1204800B1 EP 1204800 B1 EP1204800 B1 EP 1204800B1 EP 00947983 A EP00947983 A EP 00947983A EP 00947983 A EP00947983 A EP 00947983A EP 1204800 B1 EP1204800 B1 EP 1204800B1
Authority
EP
European Patent Office
Prior art keywords
pressure
pump
excavator
compensation
accordance
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
EP00947983A
Other languages
German (de)
English (en)
Other versions
EP1204800A1 (fr
Inventor
Georg Pletzer
Joachim Waegner
Heinrich Lackenberg
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.)
pletzer Georg
Original Assignee
O&K Orenstein and Koppel GmbH
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 O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Publication of EP1204800A1 publication Critical patent/EP1204800A1/fr
Application granted granted Critical
Publication of EP1204800B1 publication Critical patent/EP1204800B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/42—Drives for dippers, buckets, dipper-arms or bucket-arms
    • E02F3/43—Control of dipper or bucket position; Control of sequence of drive operations
    • E02F3/435—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like
    • E02F3/437—Control of dipper or bucket position; Control of sequence of drive operations for dipper-arms, backhoes or the like providing automatic sequences of movements, e.g. linear excavation, keeping dipper angle constant
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2232—Control of flow rate; Load sensing arrangements using one or more variable displacement pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2221—Control of flow rate; Load sensing arrangements
    • E02F9/2239—Control of flow rate; Load sensing arrangements using two or more pumps with cross-assistance
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2292—Systems with two or more pumps
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2278—Hydraulic circuits
    • E02F9/2296—Systems with a variable displacement pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/2053—Type of pump
    • F15B2211/20546—Type of pump variable capacity
    • F15B2211/20553—Type of pump variable capacity with pilot circuit, e.g. for controlling a swash plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
    • F15B2211/205—Systems with pumps
    • F15B2211/20576—Systems with pumps with multiple pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/30525—Directional control valves, e.g. 4/3-directional control valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/305—Directional control characterised by the type of valves
    • F15B2211/3056—Assemblies of multiple valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/31—Directional control characterised by the positions of the valve element
    • F15B2211/3105—Neutral or centre positions
    • F15B2211/3111—Neutral or centre positions the pump port being closed in the centre position, e.g. so-called closed centre
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/30—Directional control
    • F15B2211/32—Directional control characterised by the type of actuation
    • F15B2211/329—Directional control characterised by the type of actuation actuated by fluid pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50518—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/505—Pressure control characterised by the type of pressure control means
    • F15B2211/50509—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means
    • F15B2211/50536—Pressure control characterised by the type of pressure control means the pressure control means controlling a pressure upstream of the pressure control means using unloading valves controlling the supply pressure by diverting fluid to the return line
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/52—Pressure control characterised by the type of actuation
    • F15B2211/526—Pressure control characterised by the type of actuation electrically or electronically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/50—Pressure control
    • F15B2211/55—Pressure control for limiting a pressure up to a maximum pressure, e.g. by using a pressure relief valve
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/63—Electronic controllers
    • F15B2211/6303—Electronic controllers using input signals
    • F15B2211/6306—Electronic controllers using input signals representing a pressure
    • F15B2211/6313—Electronic controllers using input signals representing a pressure the pressure being a load pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/60—Circuit components or control therefor
    • F15B2211/635—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements
    • F15B2211/6355—Circuits providing pilot pressure to pilot pressure-controlled fluid circuit elements having valve means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/705—Output members, e.g. hydraulic motors or cylinders or control therefor characterised by the type of output members or actuators
    • F15B2211/7051—Linear output members
    • F15B2211/7053—Double-acting output members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B2211/00—Circuits for servomotor systems
    • F15B2211/70—Output members, e.g. hydraulic motors or cylinders or control therefor
    • F15B2211/76—Control of force or torque of the output member

Definitions

  • the invention relates to a process for the preparation of Floor surfaces by means of a working machine, in particular a hydraulic excavator, with one or more parts Excavator equipment with a mountable on the ground surface Spoon and a lifting cylinder for lifting and lowering the excavator equipment, the lifting cylinder of the excavator equipment via a driver-operated control device operatively connected to at least one working pump is, wherein, depending on the switching position raised the control device of the lifting cylinder, lowered or blocked.
  • the invention relates to a working machine, in particular a hydraulic excavator, for the production of floor surfaces with one or more parts excavator equipment with a spoon that can be applied to the floor surface and a lift cylinder for raising and lowering the excavator equipment, the lifting cylinder of the excavator equipment via a controllable by the driver control device at least one working pump is operatively connected, wherein, depending on the switching position of the control device the lifting cylinder can be raised, lowered or blocked is.
  • a working machine in particular a hydraulic excavator, for the production of floor surfaces with one or more parts excavator equipment with a spoon that can be applied to the floor surface and a lift cylinder for raising and lowering the excavator equipment, the lifting cylinder of the excavator equipment via a controllable by the driver control device at least one working pump is operatively connected, wherein, depending on the switching position of the control device the lifting cylinder can be raised, lowered or blocked is.
  • Hydraulic excavators are often used to make flat Floor surfaces used.
  • the spoon must or the spoon blade without or only with slight contact force be guided over the floor surface to be produced, because different support forces to waves in the Floor surface can lead.
  • This system thus provides no driver assistance for the production of flat floor surfaces, as the Power to lift the excavator equipment out of the weight the excavator equipment plus the remaining rod side Cylinder force exists. These forces lead to penetrate the spoon into the ground.
  • the object of the invention is therefore to provide a solution create with the simpler and faster way as level as possible ground surfaces with the help of working machines, especially hydraulic excavators are created can.
  • the bearing force of the spoon reduced to the ground, and in particular very low and kept as constant as possible
  • the controller the bearing force to relieve the driver automatically he follows.
  • the piston side of the lift cylinder with a suitable hydraulic medium e.g. Pressure oil supplied the weight of the excavator equipment largely compensated and thus the bearing force of Spoon on the bottom surface to a low value brings or completely eliminated.
  • This procedure relieves pressure the driver considerably, since the control of the boom during the operation must not be made. Through this relief and the automatic control
  • the spoon can move much faster over the bottom surface be led and increases the profitability.
  • Another advantage is that the risk of damage of cables and piping is reduced.
  • the compensation pressure required for weight compensation can be provided in different ways. So he can either from an additional pump or generated by the work pump itself.
  • the process can be further improved by that monitors the center of gravity of the excavator equipment and at center of gravity the compensation pressure automatically is adapted.
  • the invention provides also a generic working machine, in particular a hydraulic excavator that is characterized by that for weight compensation of the excavator equipment and for setting an approximately constant Bearing force of the spoon on the ground surface during the Working movement of the excavator equipment the lifting side of the Lifting cylinder via a switchable actuator with a Hydraulikmediumzu- and discharge device for applying with a constant adjustable compensation pressure connected is.
  • a first embodiment of the working machine is: provided that the Hydraulikmediumzu- and discharge a parallel to trained as a control slide Control device arranged valve, an auxiliary pump and a tank, wherein the valve of the Auxiliary pump generated compensation pressure on the lift side the lifting cylinder passes and the lowering side of the lifting cylinder connects to the tank, with the pressure of the auxiliary pump is adjustable.
  • the valve for example, a 4/2-way valve from Driver via the actuator in the position "planing" Switched, either permanently over a Switch or briefly done via a button can, the 4/2-way valve directs the pressure of the auxiliary pump in the lifting of the lifting cylinder between spool and lifting cylinders.
  • the lowering line of the cylinder becomes connected to the tank through the 4/2-way valve. Of the Spool remains closed during this process.
  • the pressure of the auxiliary pump over a pressure control valve is adjustable.
  • This pressure control valve Can via a selector switch on different Pressures are set. The driver puts over the Selector switch such a pressure, the weight of the Excavator equipment almost completely compensated.
  • the lifting cylinder of the Jib does not need to be controlled while leveling - The leveling takes place and the auxiliary pump together Pressure control valve ensure that the excavator equipment over the spoon always with the selected bearing force supported on the floor surface. By moving the Stiels and the spoon changes the focus the excavator equipment so that it changes in the bearing force of the spoon can give these changes are however small.
  • auxiliary pump with pressure control valve may alternatively also be provided that the auxiliary pump as adjustable pressure-controlled variable pump formed is to replace the pressure control valve and energy losses to avoid.
  • the Hydraulikmediumzu- and discharge is formed by the work pump and the as Spool trained by a hand control valve actuatable control device by a valve from the manual control valve separable and over the constant pressure of a Control pump is switchable to the lifting position, and that in the line from the spool to the lift side of the lift cylinder a pressure regulating valve is arranged, such that the Compensating pressure from the working pump available is.
  • Engages the excavator driver the grading process so the spool is permanently lifted by a valve connected.
  • a simultaneously activated pressure control valve in the Hub Arthur between the spool and the lifting side of the lifting cylinder is arranged controls the pressure so that the weight of the excavator equipment is almost is compensated.
  • the lowering side of the lifting cylinder is over the spool connected to the tank. Contemporaneous
  • the work pump to a predetermined Reduced flow through a in the control line to Working pump arranged pressure reducing valve connected.
  • a measuring device for determining the center of gravity displacement the excavator equipment e.g. a potentiometer that the Angular position of the stem determines, is provided which to the pressure control valve or the pressure-controlled Variable displacement pump provides a modulated control signal to to change the compensation pressure such that the bearing force of the spoon during the working movement constant remains.
  • Fig. 1 is a working machine, namely a hydraulic excavator, generally designated 1.
  • This hydraulic excavator 1 is equipped with an excavator equipment, the from a boom 2, a lifting cylinder 3, a stem cylinder 4, a stem 5, a bucket cylinder 6 and a Spoon 7 is made.
  • the lifting cylinder 3 is connected via lines 10, 11 with a Spool 8 trained control device connected, wherein the spool in position 0 the lifting cylinder 3 blocked, in position 1 the excavator equipment raises and in position 2 lowers the excavator equipment.
  • a work pump 9 is provided, which is usually also for other work functions of the hydraulic excavator 1 is used.
  • the spool 8 is from Driver by means of a manual control valve 17, the one of Control pump 37 is supplied via lines 21, 22 actuated.
  • Parallel to the spool 8 is a 4/2-way valve 12th arranged at rest (0) lines 23, 24th locks and connects an auxiliary pump 29 to the tank.
  • switched position P connects the valve 12 the Auxiliary pump 29 via the line 23 and the line 11 with the lifting surface of the lifting cylinder 3, while the lowering side of the lifting cylinder 3 via the line 10 and the line 24th connected to the tank.
  • the valve 12 is over a switch 18 or a button 16 from a voltage source 26 switched on.
  • the pressure of the auxiliary pump 29 is adjustable via a pressure control valve 13, through a selector switch 14 regulated in predetermined ranges can be.
  • Switch 15 is provided which interrupts the power supply, as soon as the manual control valve 17 is actuated, which via a shuttle valve 36 and a line 25 the switch 15 is actuated. This will be the following closer explained weight compensation on actuation of the Manual control valve 17 is turned off and the pressure control valve 13 placed on pressureless passage.
  • Fig. 2 differs from that of Fig. 1 in that instead of the pressure control valve 13 and the auxiliary pump 29 is a pressure-controlled Variable displacement pump 27 is provided.
  • the pressure of the pressure-controlled Variable displacement pump 27 is connected via a line 31 by means the selector switch 14 is controlled and the pump 27 is on Null promotion switched as soon as the switch 15 the Power supply interrupts.
  • Fig. 3 shows the hydraulic excavator 1 of FIG. 2 with a additional measuring device 32 in a control line 31 is inserted.
  • the meter 32 is for example a potentiometer trained and measures the angular position between the stem 5 and the boom 2.
  • the meter 32 for the signal the pressure control valve 13 or the pressure-controlled variable pump 27 modulated via a line 33 so that the bearing force of the spoon 7 kept constant on the bottom surface can be.
  • Fig. 4 shows a further embodiment of an inventive Hydraulic excavators, wherein, provided equal parts are concerned, the same reference numerals as in the previous figures are related.
  • the pressure regulating valve 13 is connected to the pipe 11 connected to the lifting side of the lifting cylinder 3.
  • a 3/2-way valve 36 switches on actuation of the switch 16 or 18, the line 22 of the manual control valve 17 and connects the constant pressure of the control pump 37 via a line 38 with the switching side of the spool, the lifting operation of the lifting cylinder 3 of the boom. 2 turns.
  • the signal of the switches 16, 18 also causes the activation the pressure control valve 13 via a selector switch 14 and the reduction of the feed pump 9 by a Pressure reducing valve 35, which is the signal of the pump control 34 modulated so that a predetermined flow the work pump is available.
  • a pressure reducing valve 35 which is the signal of the pump control 34 modulated so that a predetermined flow the work pump is available.
  • the driver switches the Switch 18 or for brief use the button 16 and thus the valve 12 in position (P) and the valve 36th At the same time he chooses the bearing force of the spoon 7 means of the selector switch 14.
  • the lift side of the lift cylinder 3 is now with the activated pressure control valve thirteenth or the pressure-controlled variable displacement pump 27 and connected supports the boom 2 in the selected measure. For leveling be from the driver then only the stem 5 and the Spoon 7 moves, the boom 2 is automatically adjusted, that the weight compensation the selected value comply.
  • the spoon 7 is moved on a bottom surface so that the boom 2 must be lifted to the surface course to follow, so by this movement increases the bearing force of the spoon 7.
  • a slight increase in the Contact force causes immediate automatic lifting the boom 2 to such an extent that the spoon 7 continues with the selected low contact force on the Floor surface rests.
  • Will the Spoon 7 on the bottom surface moves so that the boom 2 is lowered, it is automatically lowered, as soon as the spoon 7 begins to lose contact with the ground and the set contact force the necessary There is a lowering force.
  • the hydraulic oil then flows from the lift side of the lifting cylinder 3 via the pressure regulating valve 13, while the lowering side is connected to the tank and hydraulic oil can suck in.
  • the actual Spool 8 of the lifting cylinder 3 is not actuated be and can remain in the blocking position. Will be activated by the driver with the weight compensation switched on additionally with manual control valve 17 via the line 22nd the spool 8 is turned on, so the weight compensation interrupted and the boom 2 can from Driver controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Paleontology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Operation Control Of Excavators (AREA)
  • Soil Working Implements (AREA)

Abstract

L'invention concerne un procédé permettant de produire des surfaces de sol au moyen d'un engin (1), notamment une pelle excavatrice hydraulique, comprenant un équipement (2,5,7) en une ou en plusieurs parties avec un godet pouvant être placé sur la surface de sol et un vérin hydraulique (3) pour lever et abaisser l'équipement de la pelle. Le vérin hydraulique (3) de l'équipement de la pelle est relié de manière opérationnelle à au moins une pompe de travail (9) par l'intermédiaire d'un dispositif de commande (17,8) actionnable par le conducteur. En fonction de la position de commutation du dispositif de commande, le vérin hydraulique est levé, abaissé ou bloqué. Pour équilibrer le poids de l'équipement de la pelle (2,5,7) et pour ajuster une force d'application approximativement constante du godet(7) sur la surface de sol, la face de levage du vérin hydraulique (3) est sollicitée avec une pression de compensation ajustable de la pompe (29), après déclenchement d'un élément d'actionnement (16,18), ladite pression étant appliquée de manière automatique par amenée ou évacuation d'un fluide hydraulique.

Claims (12)

  1. Procédé pour réaliser des surfaces de sol au moyen d'un engin, en particulier d'une pelle excavatrice hydraulique, comportant un équipement de pelle en une ou en plusieurs pièces avec une pelle susceptible d'être appliquée sur la surface de sol et avec un vérin hydraulique pour lever et baisser l'équipement de pelle, le vérin hydraulique de l'équipement de pelle étant relié en action à au moins une pompe de travail via un dispositif de commande à actionner par le chauffeur, le vérin hydraulique étant soulevé, abaissé ou bloqué en fonction de la position de commutation du dispositif de commande,
    caractérisé en ce que
    pour compenser le poids de l'équipement de pelle et pour régler une force d'application approximativement constante de la pelle sur la surface de sol pendant le mouvement de travail de l'équipement de pelle, le côté levage . du vérin hydraulique est alimenté automatiquement par une pression de compensation réglable par amenée ou évacuation d'un fluide hydraulique, après déclenchement d'un élément d'actionnement.
  2. Procédé selon la revendication 1, caractérisé en ce que la pression de compensation est généréé par une pompe supplémentaire.
  3. Procédé selon la revendication 1, caractérisé en ce que la pression de compensation est générée par la pompe de travail.
  4. Procédé selon les revendications 1, 2 ou 3, caractérisé en ce que la position du centre de gravité de l'équipement de pelle est surveillée, et lors d'un déport du centre de gravité, la pression de compensation est adaptée automatiquement.
  5. Procédé selon l'une des revendications 1, 2, 3 ou 4, caractérisé en ce que lors de l'actionnement du dispositif de commande par le chauffeur, l'alimentation en pression de compensation est terminée.
  6. Engin, en particulier pelle excavatrice hydraulique, pour réaliser des surfaces de sol, comportant un équipement de pelle en une ou en plusieurs pièces avec une pelle (7) susceptible d'être appliquée sur la surface de sol et avec un vérin hydraulique (3) pour lever et baisser l'équipement de pelle, le vérin hydraulique (3) de l'équipement de pelle étant relié en action à au moins une pompe de travail (9) via un dispositif de commande (8) à actionner par le chauffeur, le vérin hydraulique (3) pouvant être soulevé, abaissé ou bloqué en fonction de la position de commutation du dispositif de commande (8),
    caractérisé en ce que
    pour compenser le poids de l'équipement de pelle et pour régler une force d'application approximativement constante de la pelle (7) sur la surface de sol pendant le mouvement de travail de l'équipement de pelle, le côté levage du vérin hydraulique (3) est relié via un élément d'actionnement commutable (16, 18) à un dispositif d'amenée et d'évacuation de fluide hydraulique pour l'alimentation avec une pression de compensation constante réglable.
  7. Engin selon la revendication 6, caractérisé en ce que le dispositif d'amenée et d'évacuation de fluide hydraulique comprend une valve (12) agencée parallèlement au dispositif de commande réalisé sous forme de tiroir de commande (8), une pompe auxiliaire (29) et un réservoir, la valve (12) amenant la pression de compensation générée par la pompe auxiliaire (29) sur le côté de levage du vérin hydraulique (3) et reliant le côté d'abaissement du vérin hydraulique (3) au réservoir, la pression de la pompe auxiliaire (29) étant réglable.
  8. Engin selon la revendication 7, caractérisé en ce que la pression de la pompe auxiliaire (29) est réglable via une valve de régulation de pression (13).
  9. Engin selon la revendication 7, caractérisé en ce que la pompe auxiliaire est réalisée sous forme de pompe à cylindrée variable (27) réglable et régulée en pression.
  10. Engin selon la revendication 6, caractérisé en ce que le dispositif d'amenée et d'évacuation de fluide hydraulique est formé par la pompe de travail (9), et le dispositif de commande réalisé sous forme de tiroir de commande (8) et susceptible d'être actionné par une valve de commande manuelle (17) peut être séparé de la valve de commande manuelle (17) par une valve (36) et être commuté en position de levage via la pression constante d'une pompe de commande (37), et en ce qu'une valve de régulation de pression (13) est agencée dans la conduite (11) depuis le tiroir de commande (8) vers le côté de levage du vérin hydraulique (3), de telle sorte que la pression de compensation peut être assurée par la pompe de travail (9).
  11. Engin selon la revendication 6 ou selon l'une des revendications suivantes, caractérisé en ce qu'il est prévu un commutateur de sélection (14) pour régler la pression de compensation.
  12. Engin selon la revendication 6 ou selon l'une des revendications suivantes, caractérisé en ce qu'il est prévu, dans une conduite de commande (31) vers la valve de régulation de pression (13) ou vers la pompe à cylindrée variable (27) régulée en pression, un appareil de mesure (32) pour déterminer le déport du centre de gravité de l'équipement de pelle, qui fournit un signal de commande modulé à la valve de régulation de pression (13) ou à la pompe à cylindrée variable (27) régulée en pression, afin de modifier la pression de compensation de telle sorte que la force d'application de la pelle (7) reste constante pendant le mouvement de travail.
EP00947983A 1999-08-21 2000-07-13 Procede et engin pour produire des surfaces de sol Expired - Lifetime EP1204800B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19939796 1999-08-21
DE19939796A DE19939796C1 (de) 1999-08-21 1999-08-21 Verfahren und Arbeitsmaschine zur Herstellung von Bodenflächen
PCT/EP2000/006660 WO2001014648A1 (fr) 1999-08-21 2000-07-13 Procede et engin pour produire des surfaces de sol

Publications (2)

Publication Number Publication Date
EP1204800A1 EP1204800A1 (fr) 2002-05-15
EP1204800B1 true EP1204800B1 (fr) 2003-05-28

Family

ID=7919230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00947983A Expired - Lifetime EP1204800B1 (fr) 1999-08-21 2000-07-13 Procede et engin pour produire des surfaces de sol

Country Status (5)

Country Link
US (1) US7490421B1 (fr)
EP (1) EP1204800B1 (fr)
BR (1) BR0013479A (fr)
DE (2) DE19939796C1 (fr)
WO (1) WO2001014648A1 (fr)

Families Citing this family (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101005060B1 (ko) * 2007-07-30 2010-12-30 볼보 컨스트럭션 이큅먼트 에이비 가변 제어장치를 갖는 중장비용 유압회로
DE102007040877A1 (de) * 2007-08-29 2009-03-05 Robert Bosch Gmbh Hubwerk und Verfahren zum Ansteuern eines Hubwerkes
US8944103B2 (en) 2011-08-31 2015-02-03 Caterpillar Inc. Meterless hydraulic system having displacement control valve
US8966892B2 (en) 2011-08-31 2015-03-03 Caterpillar Inc. Meterless hydraulic system having restricted primary makeup
US8863509B2 (en) 2011-08-31 2014-10-21 Caterpillar Inc. Meterless hydraulic system having load-holding bypass
US9051714B2 (en) 2011-09-30 2015-06-09 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US9057389B2 (en) 2011-09-30 2015-06-16 Caterpillar Inc. Meterless hydraulic system having multi-actuator circuit
US9151018B2 (en) 2011-09-30 2015-10-06 Caterpillar Inc. Closed-loop hydraulic system having energy recovery
US8966891B2 (en) 2011-09-30 2015-03-03 Caterpillar Inc. Meterless hydraulic system having pump protection
US9068578B2 (en) 2011-10-21 2015-06-30 Caterpillar Inc. Hydraulic system having flow combining capabilities
US8910474B2 (en) 2011-10-21 2014-12-16 Caterpillar Inc. Hydraulic system
US8984873B2 (en) 2011-10-21 2015-03-24 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US9080310B2 (en) 2011-10-21 2015-07-14 Caterpillar Inc. Closed-loop hydraulic system having regeneration configuration
US8943819B2 (en) 2011-10-21 2015-02-03 Caterpillar Inc. Hydraulic system
US8973358B2 (en) 2011-10-21 2015-03-10 Caterpillar Inc. Closed-loop hydraulic system having force modulation
US8978373B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US8893490B2 (en) 2011-10-21 2014-11-25 Caterpillar Inc. Hydraulic system
US8919114B2 (en) 2011-10-21 2014-12-30 Caterpillar Inc. Closed-loop hydraulic system having priority-based sharing
US8978374B2 (en) 2011-10-21 2015-03-17 Caterpillar Inc. Meterless hydraulic system having flow sharing and combining functionality
US9279236B2 (en) 2012-06-04 2016-03-08 Caterpillar Inc. Electro-hydraulic system for recovering and reusing potential energy
US9290912B2 (en) 2012-10-31 2016-03-22 Caterpillar Inc. Energy recovery system having integrated boom/swing circuits
US9290911B2 (en) 2013-02-19 2016-03-22 Caterpillar Inc. Energy recovery system for hydraulic machine
US20140305012A1 (en) * 2013-04-10 2014-10-16 Caterpillar Inc. Single boom system having dual arm linkage
KR20160023710A (ko) * 2013-06-28 2016-03-03 볼보 컨스트럭션 이큅먼트 에이비 플로팅기능을 갖는 건설기계용 유압회로 및 플로팅기능 제어방법
GB2530707A (en) * 2014-06-13 2016-04-06 Jc Bamford Excavators Ltd A material handling machine
CN106759622A (zh) * 2017-02-22 2017-05-31 常熟华威履带有限公司 一种动臂优先控制阀路结构及液压挖掘机
CN111108249A (zh) * 2017-12-27 2020-05-05 住友建机株式会社 挖土机
KR102613270B1 (ko) 2017-12-27 2023-12-12 스미토모 겐키 가부시키가이샤 쇼벨
DE102022203960A1 (de) 2022-04-25 2023-10-26 Robert Bosch Gesellschaft mit beschränkter Haftung Verfahren zur Verbesserung der Planierwinkelregelung einer Arbeitsmaschine

Family Cites Families (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55120802U (fr) * 1979-02-20 1980-08-27
DE3611553C1 (de) 1986-04-07 1987-07-23 Orenstein & Koppel Ag Anordnung zum Betrieb eines dieselhydraulischen Antriebes
EP0378129B1 (fr) 1989-01-13 1994-11-30 Hitachi Construction Machinery Co., Ltd. Système hydraulique pour le vérin de la flèche d'une machine de construction
JP2514915B2 (ja) 1989-03-08 1996-07-10 油谷重工株式会社 建設機械のブ―ム用フロ―ト回路
JPH0662268B2 (ja) 1989-04-21 1994-08-17 株式会社神戸製鋼所 移動式クレーンの変位抑制装置
JPH0794737B2 (ja) 1989-08-02 1995-10-11 株式会社小松製作所 油圧掘削機における直線掘削制御装置
JPH0815998B2 (ja) 1989-10-14 1996-02-21 株式会社神戸製鋼所 ホイール式クレーンの振動抑制装置
GB2250108B (en) * 1990-10-31 1995-02-08 Samsung Heavy Ind Control system for automatically controlling actuators of an excavator
ATE150508T1 (de) 1991-09-04 1997-04-15 Orenstein & Koppel Ag Hydraulisches schwingungsdämpfungssystem für mit arbeitsgeräten versehene arbeitsmaschinen
US5189940A (en) * 1991-09-13 1993-03-02 Caterpillar Inc. Method and apparatus for controlling an implement
US5447094A (en) 1994-02-07 1995-09-05 Delta Power Hydraulic Co. Hydraulic system for bucket self-leveling during raising and lowering of boom
DE4341244C2 (de) 1993-12-03 1997-08-14 Orenstein & Koppel Ag Steuerung zur Aufteilung des durch mindestens eine Pumpe zur Verfügung gestellten Förderstromes bei Hydrauliksystemen auf mehrere Verbraucher
JPH07259806A (ja) 1994-03-22 1995-10-09 Nippon Spindle Mfg Co Ltd フローティングバルブ
EP0770015B1 (fr) 1994-07-08 1998-09-16 O & K Orenstein & Koppel Ag Procede d'actionnement des verins de braquage de machines de travail mobiles et systeme de direction pour machines de travail mobiles
US5784812A (en) 1994-07-13 1998-07-28 O&K Orenstein & Koppel Ag Method of controlling the positioning of an outfit tilting cylinder mounted on the descending lift frame of movable construction machines
JP3528981B2 (ja) * 1994-08-30 2004-05-24 株式会社小松製作所 油圧ショベルのブームシリンダ用油圧回路
US6050090A (en) * 1996-06-11 2000-04-18 Kabushiki Kaisha Kobe Seiko Sho Control apparatus for hydraulic excavator
US6061617A (en) * 1997-10-21 2000-05-09 Case Corporation Adaptable controller for work vehicle attachments
DE19813622C2 (de) 1998-03-27 2002-01-10 Orenstein & Koppel Ag Verfahren und Einrichtung zur lastschaltbaren Umschaltung eines hydrostatischen Fahrantriebes einer mobilen Baumaschine
KR20010071622A (ko) * 1998-06-27 2001-07-28 라르스 브룬 모빌 작업 기계
US6309171B1 (en) 1998-09-04 2001-10-30 O&K Orenstein & Koppel Aktiengesellschaft Mobile loading machine with front-end loading equipment
WO2000037744A1 (fr) * 1998-12-22 2000-06-29 Caterpillar Inc. Systeme de commande et de reconnaissance d'outil pour engin de chantier
US6189432B1 (en) * 1999-03-12 2001-02-20 Hunter Engineering Company Automotive lift hydraulic fluid control circuit
DE19920867A1 (de) 1999-05-06 2001-02-08 Orenstein & Koppel Ag Verfahren zum Abbremsen eines drehbaren Oberwagens einer Arbeitsmaschine sowie Schwenkbremseinrichtung
DE19961052A1 (de) 1999-12-16 2001-07-26 Sauer Danfoss Gmbh Steuervorrichtung für die manuell- oder fußgeführte Steuerung von Arbeitsmaschinen
SE521308C2 (sv) * 1999-12-27 2003-10-21 Bruun Ecomate Ab Mobil hanteringsanordning med hydraulkrets
DE10004905C2 (de) 2000-02-04 2002-10-24 Orenstein & Koppel Ag Verfahren und Vorrichtung zur Steuerung eines Hubzylinders insbesondere von Arbeitsmaschinen
US7076354B2 (en) * 2000-03-24 2006-07-11 Komatsu Ltd. Working unit control apparatus of excavating and loading machine
DE10023196C2 (de) 2000-05-11 2003-04-03 Orenstein & Koppel Ag Vorrichtung zur Erfassung des Drehwinkels zwischen zwei Bauteilen
US6568898B2 (en) * 2000-05-26 2003-05-27 Komatsu Limited Hydraulic shovel with hoisting hook
US6951067B1 (en) * 2000-08-31 2005-10-04 Caterpillar, Inc. Method and apparatus for controlling positioning of an implement of a work machine
SE519970C2 (sv) * 2001-09-07 2003-05-06 Bruun Ecomate Ab Hydrauldrivet armsystem med flytreglering

Also Published As

Publication number Publication date
US7490421B1 (en) 2009-02-17
EP1204800A1 (fr) 2002-05-15
DE19939796C1 (de) 2000-11-23
WO2001014648A1 (fr) 2001-03-01
DE50002380D1 (de) 2003-07-03
BR0013479A (pt) 2002-04-30

Similar Documents

Publication Publication Date Title
EP1204800B1 (fr) Procede et engin pour produire des surfaces de sol
DE19738975B4 (de) Automatikrückholfunktion für eine Bulldozer-Reißvorrichtung
EP1752587B1 (fr) Agencement hydraulique
DE69920452T2 (de) Mobile arbeitsmaschine
DE102009025827A1 (de) Hydraulikschaltvorrichtung für die Mobilhydraulik, mobile Hydraulikmaschine und Ventileinheit
EP2031256A2 (fr) Dispositif de levage et procédé de commande d'un dispositif de levage
DE19532769A1 (de) Fluiddrucksteuerungssystem für Hydraulikbagger
EP1743981A1 (fr) Agencement hydraulique
EP1762535A2 (fr) Engin roulant du type muni d'un bras et procédé pour celui-ci
DE1926237A1 (de) Anlage zur Betaetigung hydraulischer Motoren an von einer Zugmaschine angetriebenen Zusatzaggregaten
DE3709504A1 (de) Ventileinrichtung
DE2801086A1 (de) Fahrzeug mit einer hoehensteuerung fuer ein werkzeug
DE3049611A1 (de) "ueberfahrbruecke"
DE3739525C2 (fr)
DE3226967C2 (de) Hubeinrichtung
DE29507623U1 (de) Hydraulische Entlastungsvorrichtung für Anbaugeräte
DE19854929C2 (de) Baggerfahrzeug mit Hydraulikantrieb
DE1634804C3 (de) Hydraulische Steuervorrichtung für die Antriebsmotoren eines Löffelbaggers
DE3508691C1 (de) Hydraulisches Erdbaufahrzeug mit einem schwenkbaren Ausleger
DE2834480C2 (de) Steuereinrichtung eines Schaufelladers od.dgl.
DE1191645B (de) Steuerung fuer hydraulische Antriebe mit einem Steuerventil oder -schieber mit einer Arretierung
DE19541190A1 (de) Hydraulische Anordnung zur Steuerung des Hubwerks einer mobilen Arbeitsmaschine
DE2943994B1 (de) Hydraulsiche Hubvorrichtung fuer Arbeitsgeraete,insbesondere an Schleppern
AT390348B (de) Verfahren zur steuerung der eindringtiefe von bodenbearbeitungsgeraeten, steueranordnung zu dessen durchfuehrung und bodenbearbeitungsgeraet
DE4437300C2 (de) Verfahren und Einrichtung zur lagegerechten Positionierung der an einem abwärts sich bewegenden Hubgerüst einer mobilen Arbeitsmaschine kippbar angeordneten Arbeitsausrüstung

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

17P Request for examination filed

Effective date: 20020104

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB IT SE

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: GERMAN

REF Corresponds to:

Ref document number: 50002380

Country of ref document: DE

Date of ref document: 20030703

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

ET Fr: translation filed
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

Effective date: 20040302

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

Ref country code: SE

Payment date: 20040726

Year of fee payment: 5

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

Ref country code: SE

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

Effective date: 20050714

BECH Be: change of holder

Owner name: *PLETZER GEORG

Effective date: 20050922

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

Ref country code: FR

Ref legal event code: CD

EUG Se: european patent has lapsed
BECH Be: change of holder

Owner name: *PLETZER GEORG

Effective date: 20050922

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

Ref country code: GB

Payment date: 20130823

Year of fee payment: 14

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

Ref country code: IT

Payment date: 20130826

Year of fee payment: 14

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

Ref country code: DE

Payment date: 20140827

Year of fee payment: 15

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

Ref country code: FR

Payment date: 20140730

Year of fee payment: 15

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

Ref country code: BE

Payment date: 20140820

Year of fee payment: 15

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140713

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 NON-PAYMENT OF DUE FEES

Effective date: 20140713

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

Ref country code: GB

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

Effective date: 20140713

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50002380

Country of ref document: DE

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

Ref country code: DE

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

Effective date: 20160202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20160331

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

Ref country code: FR

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

Effective date: 20150731

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

Ref country code: BE

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

Effective date: 20150731