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 PDFInfo
- 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
Links
- 239000002689 soil Substances 0.000 title description 9
- 230000003287 optical effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 6
- 238000005056 compaction Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
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
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.
- 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
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
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
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
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
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
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
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
Zwischen der Druckseite der Ölpumpe 19 und dem Ölrücklauf 20 ist darüber
hinaus ein Sicherheitsventil 21 vorgesehen. Between the pressure side of the
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
Schließlich ist in dem Ölrücklauf 20 eine Drossel 23 eingebaut.Finally, in the
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
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
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
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
Claims (12)
- Controller for an unbalanced mass adjusting device in a vibration generator (1), havingan 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 havinga 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).
- 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).
- 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.
- 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).
- 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.
- 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.
- 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.
- 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).
- 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).
- 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).
- 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).
- Ground compacting device havingan 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 havinga controller in accordance with any one of claims 1 to 11, for controlling the vibration generator (1);
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)
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)
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 |
-
2001
- 2001-05-02 DE DE10121383A patent/DE10121383C2/en not_active Expired - Fee Related
-
2002
- 2002-04-17 WO PCT/EP2002/004260 patent/WO2002087789A1/en active IP Right Grant
- 2002-04-17 JP JP2002585122A patent/JP4058346B2/en not_active Expired - Fee Related
- 2002-04-17 DE DE50203150T patent/DE50203150D1/en not_active Expired - Lifetime
- 2002-04-17 EP EP02732633A patent/EP1383616B1/en not_active Expired - Lifetime
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 |