EP1383616B1 - Controller for an unbalanced mass adjusting unit of a soil compacting device - Google Patents

Controller for an unbalanced mass adjusting unit of a soil compacting device Download PDF

Info

Publication number
EP1383616B1
EP1383616B1 EP02732633A EP02732633A EP1383616B1 EP 1383616 B1 EP1383616 B1 EP 1383616B1 EP 02732633 A EP02732633 A EP 02732633A EP 02732633 A EP02732633 A EP 02732633A EP 1383616 B1 EP1383616 B1 EP 1383616B1
Authority
EP
European Patent Office
Prior art keywords
piston
controller
signal
reference piston
oil
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
EP02732633A
Other languages
German (de)
French (fr)
Other versions
EP1383616A1 (en
Inventor
Franz Riedl
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.)
Wacker Construction Equipment AG
Original Assignee
Wacker Construction Equipment 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
Application filed by Wacker Construction Equipment AG filed Critical Wacker Construction Equipment AG
Publication of EP1383616A1 publication Critical patent/EP1383616A1/en
Application granted granted Critical
Publication of EP1383616B1 publication Critical patent/EP1383616B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/10—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy
    • B06B1/16—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of mechanical energy operating with systems involving rotary unbalanced masses
    • B06B1/161—Adjustable systems, i.e. where amplitude or direction of frequency of vibration can be varied
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
    • E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
    • E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
    • E01C19/286—Vibration or impact-imparting means; Arrangement, mounting or adjustment thereof; Construction or mounting of the rolling elements, transmission or drive thereto, e.g. to vibrator mounted inside the roll
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/02—Improving by compacting
    • E02D3/046—Improving by compacting by tamping or vibrating, e.g. with auxiliary watering of the soil
    • E02D3/074—Vibrating apparatus operating with systems involving rotary unbalanced masses
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/20—Other details, e.g. assembly with regulating devices
    • F15B15/28—Means for indicating the position, e.g. end of stroke
    • F15B15/2815—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT
    • F15B15/2838—Position sensing, i.e. means for continuous measurement of position, e.g. LVDT with out using position sensors, e.g. by volume flow measurement or pump speed
    • 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
    • F15B7/00—Systems in which the movement produced is definitely related to the output of a volumetric pump; Telemotors
    • F15B7/06—Details
    • F15B7/08—Input units; Master units
    • 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
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/08—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor
    • F15B9/09—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by valves affecting the fluid feed or the fluid outlet of the servomotor with electrical control means

Definitions

  • the invention relates to a controller for an imbalance adjustment in a vibration exciter.
  • vibration exciters are in particular for use in soil compaction machines, like vibratory plates or rollers, known. It will be usually two - but also several - unbalanced shafts positive in opposite directions driven in rotation, being characterized by the superposition of centrifugal forces every single imbalance wave gives a resulting force, depending on the embodiment of the vibration exciter in terms of their amount and / or the direction can be adjusted.
  • vibration exciter have long been known, in particular with vibrating plates, so that a further description is unnecessary.
  • vibration exciters thus, the phase angles of imbalances to each other to reverse the direction of travel or to change the so-called "m r value". They are based on a hydraulic adjustment by means of a unilaterally acted upon Piston, which with decreasing oil pressure either via a spring device or via the restoring moment exerted by the imbalances is reset.
  • EP-A-0 960 659 there is also a controller for an unbalance adjustment device described in which the adjusting piston hydraulically with a Reference piston is coupled.
  • the position of the reference piston is over a switching valve regulated.
  • the position of the switching valve in turn results by acting on the valve body from two sides forces, namely on one side by a predetermined by the operator and a spring in the Valve body introducible force, and on the other side by one of the reference piston via a spring on the valve body abandoned force.
  • the known controller is difficult to tune and does not allow implement different control algorithms. To vote or change The vote would have every time the characteristics of the valve body acting spring sets are changed, which is either a high structural or a high installation effort means.
  • the invention is based on the object, a control for an imbalance adjustment in a vibration exciter, in which a precise Detecting the adjusting piston position and a simple and reliable Activation is possible with changes in the adjusting piston position. Farther It should be possible, the respective position of the adjusting piston and to capture the imbalances or unbalanced shafts that it controls.
  • a piston rod may be provided whose position corresponds to the position of the reference piston and thus precise conclusions on the position of the adjusting piston and thus of the adjusting piston acted upon imbalances or imbalance waves.
  • the position signal is delivered to the controller, which is itself z. B. can act as an electronic control, and continue through an operable by an operator operating signal is applied.
  • the Control means compares the position signal corresponding to an actual value for the Position of the imbalances in the vibration exciter corresponds, with the operating signal, that can be regarded as a target value.
  • At the operating signal may be the operator's instructions regarding the direction of travel, but also act of the vibrating agent to be generated vibration intensity.
  • the control device then generates a control signal, with a Switching valve is controlled to the ⁇ lzu- or outflow to or from the second side of the reference piston to control.
  • a Switching valve is controlled to the ⁇ lzu- or outflow to or from the second side of the reference piston to control.
  • controller Due to the presence of the position signal and thus the reliable Information about the position of the imbalances in the vibration exciter is possible to implement with the help of the control device arbitrary control algorithms. If the controller is an electronic controller This is only changes in the electronically stored Program required.
  • a particularly advantageous embodiment of the invention is the Adjusting piston arranged on the vibration exciter, while the reference piston in a vibrationally decoupled from the vibration exciter Area is arranged.
  • This embodiment can be particularly advantageous in a soil compacting device, e.g. B. a vibrating plate, implement defined in claim 12 and having a drive Upper mass and a vibration exciter bearing, with the upper mass Having a spring means coupled lower mass, wherein the adjusting piston of the control on the lower mass and the reference piston is arranged on the upper mass.
  • a soil compacting device e.g. B. a vibrating plate, implement defined in claim 12 and having a drive Upper mass and a vibration exciter bearing, with the upper mass Having a spring means coupled lower mass, wherein the adjusting piston of the control on the lower mass and the reference piston is arranged on the upper mass.
  • vibration-sensitive components are required, for.
  • Fig. 1 shows a section of a soil compacting device, for. B. one Vibrating plate, in which the control according to the invention is used comes.
  • a per se known, above-described vibration exciter 1 is at a Lower mass of the soil compaction device arranged. Furthermore, it is on the lower mass a soil contact plate, not shown, for compression of the soil.
  • an adjusting piston 3 is arranged, whose one side is acted upon by a spring 4. His other side is over a hydraulic line 5 with a first side 6 of a on the upper mass. 2 arranged reference piston 7 is connected.
  • a piston rod 10 is arranged, which via a spring 11 against a pressure sensor 12 is supported.
  • the as signal generating device Serving pressure sensor 12 detects the of the spring 11 and thus of the Reference piston 7 applied pressure and converts it into a position of Piston rod 10 indicative position signal 13.
  • the position signal 13 is transmitted to a controller 14.
  • the control device 14 receives furthermore an operating signal 15, which results from operating procedures of the operator, z. As an operation of a lever or push buttons or by a remote control is caused.
  • the position signal 13 can also be via an optical or acoustic display be issued to the operator information about the behavior to provide the soil compacting device.
  • Control signal 16 which is supplied to magnetic coils 17 of a switching valve 18 becomes.
  • the switching valve 18 shown in Fig. 1 with the magnetic coils 17 is used just the explanation.
  • the control signal 16 in diverse Sent to a valve and can change its position.
  • the switching valve 18 is a 3/3-way valve, the between three positions 18a, 18b and 18c can be switched. It serves for controlling an oil inflow from an oil pump serving as a pressure oil source 19 to the second side 8 of the reference piston 7 and an oil drain from the second side 8 to an oil return 20.
  • the switching valve 18 is shown in the position 18 b, in which an oil inflow and an oil drain to or from the second side 8 of the reference piston 7 are interrupted.
  • the position 18a allows the oil inflow while the position 18c allows the oil drain in the return 20.
  • a safety valve 21 is provided between the pressure side of the oil pump 19 and the oil return 20 is above.
  • the first side 6 of the reference piston 7 is via a check valve 22nd also connected to the oil return 20, wherein the check valve 22nd is installed so that there is an oil reflux from the first side 6 of the Reference piston 7 to the oil return 20 prevents.
  • the controller 14 then routes in response to the operator's request and the resulting control signal 15 suitable measures by driving the switching valve 18 a. For example, an oil inflow to the second side of the reference piston 7 via the switching valve in position 18a connected, the displacement of the reference piston 7 - accordingly Fig. 1 - causes to the left. Also, the adjusting piston 3 shifts thereby to the left.
  • the switching valve 18 is switched to the position 18c, so that the oil of the second side 8 of the reference piston 7 in the oil return 20 flow can.
  • the oil in the hydraulic line 5 and on the first Page 6 of the reference piston 7 without pressure so that the adjusting piston 3 through the action of the spring 4 or by the inertia effect of the supported by him Unbalance is also shifted to the right until it stops at the mechanical stop of him receiving cylinder to a standstill comes.
  • the reference piston 7 follows this movement as far as just this Standstill.
  • the reference piston 7 does not reach its right extreme position.
  • the check valve 22 can thus flow oil to the first side 6 of the reference piston 7 and compensate for any leakage. This compensation is made by the different pressurization surfaces on the first side 6 and the second side 8 of the reference piston 7 until this his reached right extreme position.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Civil Engineering (AREA)
  • Soil Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Architecture (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Description

Die Erfindung betrifft eine Steuerung für eine Unwucht-Verstelleinrichtung in einem Vibrationserreger.The invention relates to a controller for an imbalance adjustment in a vibration exciter.

Derartige Vibrationserreger sind insbesondere zum Einsatz in Bodenverdichtungsmaschinen, wie Vibrationsplatten oder -walzen, bekannt. Dabei werden üblicherweise zwei - aber auch mehrere - Unwuchtwellen formschlüssig gegenläufig drehend angetrieben, wobei sich durch die Überlagerung der Zentrifugalkräfte jeder einzelnen Unwuchtwelle eine resultierende Kraft ergibt, die je nach Ausführungsform des Vibrationserregers hinsichtlich ihres Betrags und/oder der Richtung verstellt werden kann. Derartige Vibrationserreger sind insbesondere bei Vibrationsplatten seit langem bekannt, so dass sich eine weitere Beschreibung erübrigt.Such vibration exciters are in particular for use in soil compaction machines, like vibratory plates or rollers, known. It will be usually two - but also several - unbalanced shafts positive in opposite directions driven in rotation, being characterized by the superposition of centrifugal forces every single imbalance wave gives a resulting force, depending on the embodiment of the vibration exciter in terms of their amount and / or the direction can be adjusted. Such vibration exciter have long been known, in particular with vibrating plates, so that a further description is unnecessary.

Zum Einstellen des gewünschten Betrags oder der Richtung des resultierenden Kraftvektors ist es erforderlich, dass die Relativstellungen der Unwuchtwellen zueinander oder der Unwuchten bezüglich der sie tragenden Wellen änderbar sind. Dazu lassen sich entweder die gegenläufig drehenden Unwuchtwellen hinsichtlich ihrer Phasenlage gegeneinander verstellen, oder die Lage der Unwucht auf der sie tragenden Welle ist veränderbar. Für diesen Zweck sind Unwucht-Verstelleinrichtungen bekannt, bei denen ein von einem Verstellkolben in einer als Hohlwelle ausgebildeten Unwuchtwelle axial verstellbarer Querzapfen einen Längsschlitz in der Wandung der Hohlwelle durchdringt und in eine Spiralnut auf der Innenseite einer eine Unwucht tragenden Nabe eingreift. Bei axialer Verlagerung des Querzapfens wird der Querzapfen in dem Längsschlitz geführt, wodurch die Nabe aufgrund der Wirkung der Spiralnut ihre Relativstellung auf der sie tragenden Welle ändert. Damit lässt sich die gewünschte, oben beschriebene Verstellung der Phasenlage einstellen. Auch dieser Aufbau ist seit langem bekannt und wird z. B. in der EP-A-0 960 659 gezeigt.To set the desired amount or the direction of the resulting Force vector, it is necessary that the relative positions of the unbalanced shafts to each other or the imbalances with respect to the waves carrying them are changeable. These can be either the counter-rotating unbalance shafts with respect to their phase position against each other, or the The position of the imbalance on the shaft carrying it is changeable. For this Purpose are imbalance adjusting known, in which one of a Adjusting piston in a form of a hollow shaft unbalanced shaft axially adjustable transverse pin a longitudinal slot in the wall of the hollow shaft penetrates and into a spiral groove on the inside of an imbalance supporting hub engages. At axial displacement of the cross pin is the Transverse pin guided in the longitudinal slot, whereby the hub due to the Effect of the spiral groove changes its relative position on the shaft carrying it. This allows the desired, described above adjustment of Adjust the phase position. This structure has long been known and will z. As shown in EP-A-0 960 659.

Die Verstelleinrichtungen dienen bei Vibrationserregern somit dazu, die Phasenlagen von Unwuchten zueinander zum Reversieren der Fahrtrichtung oder zum Verändern des sogenannten "m·r-Wertes" zu verstellen. Sie basieren auf einer hydraulischen Verstellung mittels eines einseitig beaufschlagten Kolbens, der bei nachlassendem Öldruck entweder über eine Federeinrichtung oder über das durch die Unwuchten ausgeübte Rückstellmoment zurückgestellt wird.The adjustment used in vibration exciters thus, the phase angles of imbalances to each other to reverse the direction of travel or to change the so-called "m r value". They are based on a hydraulic adjustment by means of a unilaterally acted upon Piston, which with decreasing oil pressure either via a spring device or via the restoring moment exerted by the imbalances is reset.

In der EP-A-0 960 659 ist auch eine Steuerung für eine Unwucht-Verstelleinrichtung beschrieben, bei der der Verstellkolben hydraulisch mit einem Referenzkolben gekoppelt ist. Die Stellung des Referenzkolbens wird über ein Schaltventil geregelt. Die Stellung des Schaltventils wiederum ergibt sich durch auf den Ventilkörper von zwei Seiten einwirkende Kräfte, nämlich auf einer Seite durch eine vom Bediener vorgebbare und über eine Feder in den Ventilkörper einleitbare Kraft, und auf der anderen Seite durch eine von dem Referenzkolben über eine Feder auf den Ventilkörper aufgegebene Kraft. Die bekannte Steuerung ist schwierig abzustimmen und ermöglicht es nicht, unterschiedliche Regelalgorithmen umzusetzen. Zur Abstimmung bzw. Änderung der Abstimmung müssten jedes Mal die Kennlinien der den Ventilkörper beaufschlagenden Federsätze verändert werden, was entweder einen hohen baulichen oder einen hohen Montageaufwand bedeutet.In EP-A-0 960 659 there is also a controller for an unbalance adjustment device described in which the adjusting piston hydraulically with a Reference piston is coupled. The position of the reference piston is over a switching valve regulated. The position of the switching valve in turn results by acting on the valve body from two sides forces, namely on one side by a predetermined by the operator and a spring in the Valve body introducible force, and on the other side by one of the reference piston via a spring on the valve body abandoned force. The known controller is difficult to tune and does not allow implement different control algorithms. To vote or change The vote would have every time the characteristics of the valve body acting spring sets are changed, which is either a high structural or a high installation effort means.

Bei komplexeren Vibrationserregern, bei denen außer der Phasenlage auch der mr-Wert verstellbar ist und somit unter Umständen mehrere Unwucht-Verstelleinrichtungen vorhanden sind, ist es erforderlich, ein zuverlässiges Signal über die jeweilige Stellung des Verstellkolbens und damit der von ihm verstellten Unwuchten im Erreger zu erhalten.For more complex vibration exciters, where in addition to the phase also the mr value is adjustable and thus possibly several unbalance adjustment it is necessary to have a reliable one Signal about the respective position of the adjusting piston and thus of him to get adjusted imbalances in the pathogen.

Der Erfindung liegt die Aufgabe zugrunde, eine Steuerung für eine Unwucht-Verstelleinrichtung in einem Vibrationserreger anzugeben, bei der eine präzise Erfassung der Verstellkolbenposition und eine einfache und zuverlässige Ansteuerung bei Änderungen der Verstellkolbenposition möglich ist. Weiterhin sollte es möglich sein, die jeweilige Position des Verstellkolbens und damit der von ihm angesteuerten Unwuchten bzw. Unwuchtwellen zu erfassen.The invention is based on the object, a control for an imbalance adjustment in a vibration exciter, in which a precise Detecting the adjusting piston position and a simple and reliable Activation is possible with changes in the adjusting piston position. Farther It should be possible, the respective position of the adjusting piston and to capture the imbalances or unbalanced shafts that it controls.

Erfindungsgemäß wird die Aufgabe durch eine Steuerung gemäß Anspruch 1 gelöst. Vorteilhafte Weiterentwicklungen der Erfindung sind den abhängigen Ansprüchen zu entnehmen.According to the invention the object is achieved by a control according to claim 1 solved. Advantageous developments of the invention are the dependent Claims to be taken.

Bei der erfindungsgemäßen Steuerung wird die Stellung des mit dem Verstellkolben hydraulisch gekoppelten Referenzkolbens von einer Signalerzeugungseinrichtung erfasst und in Form eines Stellungssignals weitergeleitet. An dem Referenzkolben kann eine Kolbenstange vorgesehen sein, deren Stellung der Stellung des Referenzkolbens entspricht und somit präzise Rückschlüsse auf die Stellung des Verstellkolbens und damit der vom Verstellkolben beaufschlagten Unwuchten bzw. Unwuchtwellen zulässt.In the control according to the invention, the position of the adjusting piston hydraulically coupled reference piston from a signal generating device recorded and forwarded in the form of a position signal. At the reference piston, a piston rod may be provided whose position corresponds to the position of the reference piston and thus precise conclusions on the position of the adjusting piston and thus of the adjusting piston acted upon imbalances or imbalance waves.

Das Stellungssignal wird an die Steuereinrichtung geliefert, bei der es sich z. B. um eine elektronische Regelung handeln kann, und die weiterhin durch ein von einem Bediener abgebbares Bediensignal beaufschlagt wird. Die Steuereinrichtung vergleicht das Stellungssignal, das einem Ist-Wert für die Stellung der Unwuchten im Vibrationserreger entspricht, mit dem Bediensignal, das insofern als Soll-Wert angesehen werden kann. Bei dem Bediensignal kann es sich um Vorgaben des Bedieners hinsichtlich der Fahrtrichtung, aber auch der vom Vibrationserreger zu erzeugenden Vibrationsstärke handeln.The position signal is delivered to the controller, which is itself z. B. can act as an electronic control, and continue through an operable by an operator operating signal is applied. The Control means compares the position signal corresponding to an actual value for the Position of the imbalances in the vibration exciter corresponds, with the operating signal, that can be regarded as a target value. At the operating signal may be the operator's instructions regarding the direction of travel, but also act of the vibrating agent to be generated vibration intensity.

Die Steuereinrichtung erzeugt daraufhin ein Steuersignal, mit dem ein Schaltventil angesteuert wird, um den Ölzu- oder -abfluss zu oder von der zweiten Seite des Referenzkolbens zu steuern. Über die Steuereinrichtung lässt sich somit die Stellung des Referenzkolbens und folglich auch die Stellung des Verstellkolbens verändern.The control device then generates a control signal, with a Switching valve is controlled to the Ölzu- or outflow to or from the second side of the reference piston to control. About the controller Thus, the position of the reference piston and consequently also the position can be of the adjusting piston change.

Aufgrund des Vorliegens des Stellungssignals und damit der zuverlässigen Information über die Stellung der Unwuchten im Vibrationserreger ist es möglich, mit Hilfe der Steuereinrichtung beliebige Regelalgorithmen umzusetzen. Wenn es sich bei der Steuereinrichtung um eine elektronische Steuerung handelt, sind hierzu lediglich Änderungen in dem elektronisch gespeicherten Programm erforderlich.Due to the presence of the position signal and thus the reliable Information about the position of the imbalances in the vibration exciter is possible to implement with the help of the control device arbitrary control algorithms. If the controller is an electronic controller This is only changes in the electronically stored Program required.

Bei einer besonders vorteilhaften Ausführungsform der Erfindung ist der Verstellkolben an dem Vibrationserreger angeordnet, während der Referenzkolben in einem von dem Vibrationserreger schwingungsmäßig entkoppelten Bereich angeordnet ist. Diese Ausführungsform lässt sich besonders vorteilhaft bei einer Bodenverdichtungsvorrichtung, z. B. einer Vibrationsplatte, realisieren, die in Anspruch 12 definiert ist und eine einen Antrieb aufweisende Obermasse und eine den Vibrationserreger tragende, mit der Obermasse über eine Federeinrichtung gekoppelte Untermasse aufweist, wobei der Verstellkolben der Steuerung an der Untermasse und der Referenzkolben an der Obermasse angeordnet ist. Da für die Erfassung der Stellung des Referenzkolbens bzw. seiner Kolbenstange schwingungsempfindliche Bauteile erforderlich sind, z. B. Näherungssensoren, Drucksensoren oder optische Sensoren, ist es von besonderem Vorteil, wenn der Referenzkolben an der vibrationsärmeren Obermasse der Bodenverdichtungsvorrichtung, nicht aber in der Nähe des Vibrationserregers angeordnet ist. Eine geringere Beanspruchung der empfindlichen Bauteile und eine daraus resultierende höhere Zuverlässigkeit und Genauigkeit der Messungen sind die Folge.In a particularly advantageous embodiment of the invention is the Adjusting piston arranged on the vibration exciter, while the reference piston in a vibrationally decoupled from the vibration exciter Area is arranged. This embodiment can be particularly advantageous in a soil compacting device, e.g. B. a vibrating plate, implement defined in claim 12 and having a drive Upper mass and a vibration exciter bearing, with the upper mass Having a spring means coupled lower mass, wherein the adjusting piston of the control on the lower mass and the reference piston is arranged on the upper mass. As for the detection of the position of the reference piston or its piston rod vibration-sensitive components are required, for. As proximity sensors, pressure sensors or optical Sensors, it is particularly advantageous if the reference piston on the vibration Upper mass of soil compaction device, but not is arranged in the vicinity of the vibration exciter. A lower stress the sensitive components and a resulting higher reliability and accuracy of the measurements are the result.

Diese und weitere Vorteile und Merkmale der Erfindung werden nachfolgend anhand eines Beispiels unter Zuhilfenahme der einzigen Figur näher erläutert. Es zeigt:

Fig. 1
ein Blockschaltbild einer erfindungsgemäßen Steuerung.
These and other advantages and features of the invention will be explained in more detail by way of example with the aid of the single figure. It shows:
Fig. 1
a block diagram of a controller according to the invention.

Fig. 1 zeigt einen Ausschnitt einer Bodenverdichtungsvorrichtung, z. B. einer Vibrationsplatte, bei der die erfindungsgemäße Steuerung zum Einsatz kommt.Fig. 1 shows a section of a soil compacting device, for. B. one Vibrating plate, in which the control according to the invention is used comes.

Ein an sich bekannter, oben beschriebener Vibrationserreger 1 ist an einer Untermasse der Bodenverdichtungsvorrichtung angeordnet. Weiterhin ist an der Untermasse eine nicht dargestellte Bodenkontaktplatte zur Verdichtung des Bodens vorgesehen.A per se known, above-described vibration exciter 1 is at a Lower mass of the soil compaction device arranged. Furthermore, it is on the lower mass a soil contact plate, not shown, for compression of the soil.

Oberhalb der Untermasse befindet sich - durch ein nicht dargestelltes Feder-Dämpfer-System in bekannter Weise getrennt - eine Obermasse 2, die unter anderem den Antrieb umfasst.Above the lower mass is - by a spring-damper system, not shown separated in a known manner - an upper mass 2, the including the drive among other things.

Direkt am Vibrationserreger 1 ist ein Verstellkolben 3 angeordnet, dessen eine Seite durch eine Feder 4 beaufschlagt ist. Seine andere Seite ist über eine Hydraulikleitung 5 mit einer ersten Seite 6 eines an der Obermasse 2 angeordneten Referenzkolbens 7 verbunden.Directly on the vibration exciter 1, an adjusting piston 3 is arranged, whose one side is acted upon by a spring 4. His other side is over a hydraulic line 5 with a first side 6 of a on the upper mass. 2 arranged reference piston 7 is connected.

An einer zweiten Seite 8 des in einem Zylinder 9 axial beweglichen Referenzkolbens 7 ist eine Kolbenstange 10 angeordnet, die über eine Feder 11 gegen einen Drucksensor 12 abgestützt ist. Der als Signalerzeugungseinrichtung dienende Drucksensor 12 erfasst den von der Feder 11 und damit von dem Referenzkolben 7 ausgeübten Druck und wandelt ihn in ein die Stellung der Kolbenstange 10 angebendes Stellungssignal 13. Das Stellungssignal 13 wird an eine Steuereinrichtung 14 übertragen. Die Steuereinrichtung 14 erhält weiterhin ein Bediensignal 15, das aus Bedienvorgängen des Bedieners, z. B. einer Betätigung eines Hebels oder von Drucktasten oder auch durch eine Fernsteuerung hervorgerufen wird.On a second side 8 of the axially movable in a cylinder 9 reference piston 7, a piston rod 10 is arranged, which via a spring 11 against a pressure sensor 12 is supported. The as signal generating device Serving pressure sensor 12 detects the of the spring 11 and thus of the Reference piston 7 applied pressure and converts it into a position of Piston rod 10 indicative position signal 13. The position signal 13 is transmitted to a controller 14. The control device 14 receives furthermore an operating signal 15, which results from operating procedures of the operator, z. As an operation of a lever or push buttons or by a remote control is caused.

Das Stellungssignal 13 kann auch über eine optische oder akustische Anzeige ausgegeben werden, um dem Bediener Informationen über das Verhalten der Bodenverdichtungsvorrichtung zu liefern.The position signal 13 can also be via an optical or acoustic display be issued to the operator information about the behavior to provide the soil compacting device.

In Abhängigkeit des Stellungssignals 13 und des den Wunsch des Bedieners wiederspiegelnden Bediensignals 15 ermittelt die als elektronische Regelung ausgeführte Steuereinrichtung 14, welche Maßnahmen erforderlich sind, um den Wunsch des Bedieners zu erfüllen. Dementsprechend erzeugt sie ein Steuersignal 16, das an Magnetspulen 17 eines Schaltventils 18 geliefert wird. Das in Fig. 1 gezeigte Schaltventil 18 mit den Magnetspulen 17 dient nur der Erläuterung. Selbstverständlich kann das Steuersignal 16 in vielfältiger Weise an ein Ventil geliefert werden und dessen Stellung verändern lassen.Depending on the position signal 13 and the desire of the operator reflecting operating signal 15 determines that as electronic control executed control device 14, which measures are required to to meet the desire of the operator. Accordingly, it creates one Control signal 16, which is supplied to magnetic coils 17 of a switching valve 18 becomes. The switching valve 18 shown in Fig. 1 with the magnetic coils 17 is used just the explanation. Of course, the control signal 16 in diverse Sent to a valve and can change its position.

Bei dem Schaltventil 18 handelt es sich um ein 3/3-Wegeventil, das zwischen drei Stellungen 18a, 18b und 18c geschaltet werden kann. Es dient zur Steuerung eines Ölzuflusses von einer als Druckölquelle dienenden Ölpumpe 19 zu der zweiten Seite 8 des Referenzkolbens 7 bzw. eines Ölabflusses von der zweiten Seite 8 zu einem Ölrücklauf 20.The switching valve 18 is a 3/3-way valve, the between three positions 18a, 18b and 18c can be switched. It serves for controlling an oil inflow from an oil pump serving as a pressure oil source 19 to the second side 8 of the reference piston 7 and an oil drain from the second side 8 to an oil return 20.

In Fig. 1 ist das Schaltventil 18 in der Stellung 18b gezeigt, in der ein Ölzufluss und ein Ölabfluss zu oder von der zweiten Seite 8 des Referenzkolbens 7 unterbrochen sind. Die Stellung 18a ermöglicht den Ölzufluss, während die Stellung 18c den Ölabfluss in den Rücklauf 20 ermöglicht.In Fig. 1, the switching valve 18 is shown in the position 18 b, in which an oil inflow and an oil drain to or from the second side 8 of the reference piston 7 are interrupted. The position 18a allows the oil inflow while the position 18c allows the oil drain in the return 20.

Zwischen der Druckseite der Ölpumpe 19 und dem Ölrücklauf 20 ist darüber hinaus ein Sicherheitsventil 21 vorgesehen. Between the pressure side of the oil pump 19 and the oil return 20 is above In addition, a safety valve 21 is provided.

Die erste Seite 6 des Referenzkolbens 7 ist über ein Rückschlagventil 22 ebenfalls mit dem Ölrücklauf 20 verbunden, wobei das Rückschlagventil 22 derart eingebaut ist, dass es einen Ölrückfluss von der ersten Seite 6 des Referenzkolbens 7 zum Ölrücklauf 20 unterbindet.The first side 6 of the reference piston 7 is via a check valve 22nd also connected to the oil return 20, wherein the check valve 22nd is installed so that there is an oil reflux from the first side 6 of the Reference piston 7 to the oil return 20 prevents.

Schließlich ist in dem Ölrücklauf 20 eine Drossel 23 eingebaut.Finally, in the oil return 20, a throttle 23 is installed.

Durch die Ölfüllung in der Hydraulikleitung 5 ist sichergestellt, dass der Verstellkolben 3 und der Referenzkolben 7 hinsichtlich ihrer Bewegungen präzise gekoppelt sind. Jede Veränderung des Verstellkolbens 3 bewirkt auch eine Veränderung des Referenzkolbens 7, die über die Kolbenstange 10 und den Drucksensor 12 erfasst und an die Steuerung 14 geliefert wird.By the oil filling in the hydraulic line 5 it is ensured that the Adjusting piston 3 and the reference piston 7 with respect to their movements are precisely coupled. Any change of the adjusting piston 3 causes Also, a change of the reference piston 7, via the piston rod 10th and the pressure sensor 12 is detected and supplied to the controller 14.

Die Steuerung 14 leitet dann in Abhängigkeit von dem Wunsch des Bedieners und dem daraus resultierenden Bediensignal 15 geeignete Maßnahmen durch Ansteuern des Schaltventils 18 ein. Zum Beispiel wird ein Ölzufluss zur zweiten Seite des Referenzkolbens 7 über das Schaltventil in Stellung 18a geschaltet, der eine Verlagerung des Referenzkolbens 7 - entsprechend Fig. 1 - nach links bewirkt. Auch der Verstellkolben 3 verlagert sich dadurch nach links.The controller 14 then routes in response to the operator's request and the resulting control signal 15 suitable measures by driving the switching valve 18 a. For example, an oil inflow to the second side of the reference piston 7 via the switching valve in position 18a connected, the displacement of the reference piston 7 - accordingly Fig. 1 - causes to the left. Also, the adjusting piston 3 shifts thereby to the left.

Wenn umgekehrt die rechte Extremstellung der Kolben erreicht werden soll, wird das Schaltventil 18 in die Stellung 18c geschaltet, so dass das Öl von der zweiten Seite 8 des Referenzkolbens 7 in den Ölrücklauf 20 fließen kann. Dadurch wird das Öl in der Hydraulikleitung 5 und auf der ersten Seite 6 des Referenzkolbens 7 drucklos, so dass der Verstellkolben 3 durch die Wirkung der Feder 4 oder durch die Trägheitswirkung der von ihm gestützten Unwuchten ebenfalls nach rechts verschoben wird, bis er an dem mechanischen Anschlag des ihn aufnehmenden Zylinders zum Stillstand kommt.Conversely, if the right extreme position of the pistons is to be achieved, the switching valve 18 is switched to the position 18c, so that the oil of the second side 8 of the reference piston 7 in the oil return 20 flow can. As a result, the oil in the hydraulic line 5 and on the first Page 6 of the reference piston 7 without pressure, so that the adjusting piston 3 through the action of the spring 4 or by the inertia effect of the supported by him Unbalance is also shifted to the right until it stops at the mechanical stop of him receiving cylinder to a standstill comes.

Der Referenzkolben 7 folgt dieser Bewegung solange bis zu eben diesem Stillstand. Wenn die Ölmenge in der Hydraulikleitung 5 und auf der ersten Seite 6 - z. B. aufgrund von Leckverlusten - zu klein ist, kann der Referenzkolben 7 nicht seine rechte Extremstellung erreichen. Jedoch weist das Öl in dem Ölrücklauf 20 einen durch die ein Strömungshindernis bildende Drossel 23 einen gewissen Restdruck auf, der ausreicht, das Rückschlagventil 22 zu öffnen. Dabei ist zu beachten, dass in der Hydraulikleitung 5 und auf der ersten Seite 6 praktisch kein Öldruck mehr herrscht. Über das Rückschlagventil 22 kann somit Öl zur ersten Seite 6 des Referenzkolbens 7 nachströmen und eventuelle Leckverluste ausgleichen. Dieser Ausgleich erfolgt durch die unterschiedlichen Druckbeaufschlagungsflächen an der ersten Seite 6 und der zweiten Seite 8 des Referenzkolbens 7 solange, bis dieser seine rechte Extremstellung erreicht.The reference piston 7 follows this movement as far as just this Standstill. When the amount of oil in the hydraulic line 5 and on the first Page 6 - z. B. due to leakage - is too small, the reference piston 7 does not reach its right extreme position. However, the oil points in the oil return 20 a through the flow obstacle forming throttle 23 a certain residual pressure, which is sufficient, the check valve 22nd to open. It should be noted that in the hydraulic line 5 and on the first page 6 practically no oil pressure prevails. About the check valve 22 can thus flow oil to the first side 6 of the reference piston 7 and compensate for any leakage. This compensation is made by the different pressurization surfaces on the first side 6 and the second side 8 of the reference piston 7 until this his reached right extreme position.

Claims (12)

  1. Controller for an unbalanced mass adjusting device in a vibration generator (1), having
    an adjusting piston (3), which can be hydraulically activated, for changing the relative position of unbalanced masses in the vibration generator (1);
    a reference piston (7), the first side (6) of which is hydraulically coupled to a side of the adjusting piston (3);
    a signal generating device (12) for generating a position signal (13) in dependence upon a position of the reference piston (7);
    a control device (14) which can be influenced by the position signal (13) and by an operating signal (15) which can be given by an operator, and which control device, in use, generates a control signal (16) in dependence upon the position signal (13) and the operating signal (15); and having
    a switching valve (18) coupled to the reference piston (7) to control an oil in-flow from a compressed oil source (19) or an oil out-flow to an oil return line (20) on a second side (8) of the reference piston (7), wherein the position of the switching valve (18) can be changed in dependence upon the control signal (16) of the control device (14).
  2. Controller as claimed in claim 1, characterised in that the position of the adjusting piston (3) can be changed only by changing the position of the reference piston (7).
  3. Controller as claimed in claim 1 or 2, characterised in that the hydraulic volume between the adjusting piston (3) and the reference piston (7) is substantially constant.
  4. Controller as claimed in any one of claims 1 to 3, characterised in that the adjusting piston (3) is disposed on the vibration generator (1) and that the reference piston (7) is disposed in a region (2) which is decoupled in respect of vibration from the vibration generator (1).
  5. Controller as claimed in any one of claims 1 to 4, characterised in that the signal generating device has a proximity sensor, an induction coil, a pressure sensor (12) or an optical sensor.
  6. Controller as claimed in any one of claims 1 to 5, characterised in that the position signal (13) can be output by the signal generating device (12) via an optical or acoustic display.
  7. Controller as claimed in any one of claims 1 to 6, characterised in that the position signal (13) forms an actual value and the operating signal (15) forms a desired value for a regulating device provided in the control device, which regulating device, in use, generates the control signal (16) in dependence upon the actual and the desired value.
  8. Controller as claimed in any one of claims 1 to 7, characterised in that the first side (6) of the reference piston (7) is connected to the oil return line (20) via a non-return valve (22), wherein the non-return valve (22) is disposed in such a way that it prevents an oil out-flow from the first side (6) of the reference piston (7) to the oil return line (20).
  9. Controller as claimed in any one of claims 1 to 8, characterised in that a flow obstructer or a restrictor (23) is disposed in the oil return line (20).
  10. Controller as claimed in any one of claims 1 to 9, characterised in that the reference piston (7) is provided with a piston rod (10) and that the signal generating device (12) is formed for generating the position signal (13) in dependence upon a position of the piston rod (10).
  11. Controller as claimed in claim 10, characterised in that the piston rod (10) is disposed on the second side (8) of the reference piston (7).
  12. Ground compacting device having
    an upper mass (2) comprising a drive;
    a lower mass comprising a vibration generator (1), which is driven by the drive, and coupled to the upper mass (2) via a spring device; and having
    a controller in accordance with any one of claims 1 to 11, for controlling the vibration generator (1);
    wherein the adjusting piston (3) of the controller is disposed on the lower mass and the reference piston (7) is disposed on the upper mass (2).
EP02732633A 2001-05-02 2002-04-17 Controller for an unbalanced mass adjusting unit of a soil compacting device Expired - Lifetime EP1383616B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10121383 2001-05-02
DE10121383A DE10121383C2 (en) 2001-05-02 2001-05-02 Control for an unbalance adjustment device in a vibration exciter of a soil compacting device
PCT/EP2002/004260 WO2002087789A1 (en) 2001-05-02 2002-04-17 Controller for an unbalanced mass adjusting unit of a soil compacting device

Publications (2)

Publication Number Publication Date
EP1383616A1 EP1383616A1 (en) 2004-01-28
EP1383616B1 true EP1383616B1 (en) 2005-05-18

Family

ID=7683402

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02732633A Expired - Lifetime EP1383616B1 (en) 2001-05-02 2002-04-17 Controller for an unbalanced mass adjusting unit of a soil compacting device

Country Status (4)

Country Link
EP (1) EP1383616B1 (en)
JP (1) JP4058346B2 (en)
DE (2) DE10121383C2 (en)
WO (1) WO2002087789A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004015589A1 (en) * 2004-02-29 2005-09-15 Bomag Gmbh Controller for unbalance adjustment of vibrating soil-compactor, controls valve according to pulse-width modulation signal to set relative position of unbalance weights
EP1568420B1 (en) 2004-02-29 2018-08-15 BOMAG GmbH Device and method for controlling a vibrating machine
CN102590865B (en) * 2012-03-12 2013-09-11 杭州电子科技大学 Hydraulic driven vibration exciter for underwater exploratory surveying
US20160290505A1 (en) * 2016-06-14 2016-10-06 Caterpillar Inc. Cylinder-piston assembly
DE102016124341A1 (en) 2016-12-14 2018-06-14 Hamm Ag Construction machinery

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2692523B1 (en) * 1992-06-19 1994-10-07 Procedes Tech Construction Device for controlling a vibrator at variable time.
AU692479B2 (en) * 1993-11-30 1998-06-11 Sakai Heavy Industries, Ltd. Vibrating mechanism and apparatus for generating vibrations for a vibration compacting roller with a variable amplitude
DE4425905A1 (en) * 1994-07-21 1996-01-25 Bald Hubert Device and method for compensating transverse vibrations on unbalance vibrators with a predetermined vibration direction
JP3318528B2 (en) * 1998-05-13 2002-08-26 三笠産業株式会社 Forward and backward operation mechanism of vibration compaction machine
DE20008553U1 (en) * 2000-05-12 2000-08-31 Weber Maschinentechnik GmbH, 57334 Bad Laasphe Adjustment unit for soil compactors

Also Published As

Publication number Publication date
JP2004524154A (en) 2004-08-12
DE10121383A1 (en) 2002-11-14
DE10121383C2 (en) 2003-04-03
JP4058346B2 (en) 2008-03-05
DE50203150D1 (en) 2005-06-23
WO2002087789A1 (en) 2002-11-07
EP1383616A1 (en) 2004-01-28

Similar Documents

Publication Publication Date Title
DE69425111T2 (en) Vibration mechanism and device for generating vibrations in a vibratory roller with adjustable amplitude
DE3888849T2 (en) VIBRATION DAMPING MACHINE BEARING.
DE60105673T2 (en) Vibration damping device
DE69202015T2 (en) Vibrator with adjustable unbalance, especially for driving objects into the ground.
DE3239266C2 (en)
DE2547955C2 (en) Dynamic vibration absorber
DE102005029434A1 (en) Vibrating plate with individually adjustable vibration generators comprising individual exciters each with unbalanced shaft whose rotational speed and/or phase position can be individually controlled
EP1722036A2 (en) Ground compacting machine
EP1568420B1 (en) Device and method for controlling a vibrating machine
EP0135479A1 (en) Device for driving and extracting
WO2008128619A1 (en) Vibrator for a ground compacting apparatus
EP1064431B1 (en) Directional control for a vibrating plate
EP1383616B1 (en) Controller for an unbalanced mass adjusting unit of a soil compacting device
EP0766788A1 (en) Adjustable hydrostatic radial-piston motor
WO2002000359A1 (en) Vibration exciter with ajustable amplitude
DE19912813C1 (en) Travel direction control for ground compaction device e.g. vibration plate compactor, has sensor detecting position of travel direction selection lever for controlling switching valve in hydraulic drive circuit
EP0745189B1 (en) Device for regulating the total output of at least two hydrostatic variable displacement pumps
EP2286025B1 (en) Shaking device
DE3024399A1 (en) CONTROL DEVICE FOR A UNIT COMPOSED OF SEVERAL PUMP DRIVEN BY A COMMON PRIMARY ENERGY SOURCE
DE3704845C2 (en) Electro-hydraulic servo valve with additional electric drive
DE2502627C3 (en) Device for the active damping of the vibrations of vertically vibrating masses, e.g. in vehicles
DE2855812C2 (en)
DE60015630T2 (en) ELASTO HYDRAULIC VIBRATION INSULATOR
WO2002042010A1 (en) Device for the continuous adjustment of unbalance of steerable vibration plates
DE2352622B2 (en) Hydraulic control system for an automatic transmission

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: 20031001

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 TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RBV Designated contracting states (corrected)

Designated state(s): CH DE GB LI SE

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE GB LI 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: CH

Ref legal event code: EP

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REF Corresponds to:

Ref document number: 50203150

Country of ref document: DE

Date of ref document: 20050623

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20050810

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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: 20060221

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: WACKER CONSTRUCTION EQUIPMENT AG

Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: WACKER NEUSON SE

Free format text: WACKER CONSTRUCTION EQUIPMENT AG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG

Free format text: WACKER NEUSON SE#PREUSSENSTRASSE 41#80809 MUENCHEN (DE) -TRANSFER TO- WACKER NEUSON PRODUKTION GMBH & CO. KG#PREUSSENSTRASSE 41#80809 MUENCHEN (DE)

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 50203150

Country of ref document: DE

Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 50203150

Country of ref document: DE

Owner name: WACKER NEUSON PRODUKTION GMBH & CO. KG, DE

Free format text: FORMER OWNER: WACKER NEUSON SE, 80809 MUENCHEN, DE

Effective date: 20120326

Ref country code: DE

Ref legal event code: R082

Ref document number: 50203150

Country of ref document: DE

Representative=s name: MUELLER - HOFFMANN & PARTNER PATENTANWAELTE, DE

Effective date: 20120326

Ref country code: DE

Ref legal event code: R082

Ref document number: 50203150

Country of ref document: DE

Representative=s name: MUELLER HOFFMANN & PARTNER PATENTANWAELTE MBB, DE

Effective date: 20120326

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120426 AND 20120502

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

Ref country code: GB

Payment date: 20150423

Year of fee payment: 14

Ref country code: CH

Payment date: 20150422

Year of fee payment: 14

Ref country code: SE

Payment date: 20150423

Year of fee payment: 14

Ref country code: DE

Payment date: 20150422

Year of fee payment: 14

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 50203150

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 20160417

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: 20161101

Ref country code: CH

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

Effective date: 20160430

Ref country code: GB

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

Effective date: 20160417

Ref country code: LI

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

Effective date: 20160430

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: 20160418