EP1600228B1 - Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine - Google Patents

Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine Download PDF

Info

Publication number
EP1600228B1
EP1600228B1 EP05450093A EP05450093A EP1600228B1 EP 1600228 B1 EP1600228 B1 EP 1600228B1 EP 05450093 A EP05450093 A EP 05450093A EP 05450093 A EP05450093 A EP 05450093A EP 1600228 B1 EP1600228 B1 EP 1600228B1
Authority
EP
European Patent Office
Prior art keywords
drive
carrier
spindle
gear
diverting rollers
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.)
Active
Application number
EP05450093A
Other languages
German (de)
French (fr)
Other versions
EP1600228A1 (en
Inventor
Alfred Seeber
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.)
GFM Beteiligungs und Management GmbH and Co KG
Original Assignee
GFM Beteiligungs und Management GmbH and Co KG
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 GFM Beteiligungs und Management GmbH and Co KG filed Critical GFM Beteiligungs und Management GmbH and Co KG
Priority to AT05450093T priority Critical patent/ATE344703T1/en
Publication of EP1600228A1 publication Critical patent/EP1600228A1/en
Application granted granted Critical
Publication of EP1600228B1 publication Critical patent/EP1600228B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00—Details of machines for forging, pressing, or hammering
    • B21J13/08—Accessories for handling work or tools
    • B21J13/10—Manipulators
    • B21J13/12—Turning means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y10T74/1884—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with sprocket wheel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18568—Reciprocating or oscillating to or from alternating rotary
    • Y10T74/18832—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.]
    • Y10T74/18848—Reciprocating or oscillating to or from alternating rotary including flexible drive connector [e.g., belt, chain, strand, etc.] with pulley

Definitions

  • the invention relates to a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine, with a traction mechanism out of a endlessly driven around a drive wheel and an output traction means, with a continuous rotary drive for the drive wheel and with a torsional oscillatory superposition drive.
  • the arrangement of the spring accumulator in the axial extension of the worm of the worm gear impairs access to the spring elements of the spring accumulator, which complicates the adaptation of the oscillation frequency of the superposition drive to the frequency of blow of the forging tools by replacing the spring elements of the spring accumulator.
  • the invention is therefore an object of the invention to provide a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine of the type described in such a way that the design effort is reduced and the adaptation of the rotary oscillating superposition drive can be facilitated to the respective requirements.
  • the invention solves this problem by the fact that the superposition drive has a rotatably movable about the axis of the driven wheel carrier and mounted on the support pulleys for the supply in relation to the drive wheel and running Gebtrume.
  • the output gear is rotatably displaced, so that the continuous rotary drive of the drive wheel with the help of the superposition drive torsional vibrations are superimposed, which lead to an intermittent drive of the driven wheel.
  • the required for the intermittent drive of the driven wheel torsional vibration of the carrier about the axis of the driven wheel can be achieved according to the respective requirements in different ways, so that open up advantageous adjustment options.
  • the support for the deflection rollers can be hinged in a simple manner to a spring accumulator, which ensures the intermittent drive for the spindle by resonance-induced torsional vibrations of the carrier after an excitation by periodically holding the workpiece driven via the spindle.
  • belts or chains can be used as a traction device for the traction mechanism ropes.
  • Particularly advantageous construction conditions arise when the traction mechanism is designed as a toothed belt transmission, because with the timing belt a positive connection between the arrival and the driven wheel is achieved without special design effort.
  • the illustrated apparatus for intermittently driving a spindle 1 for a workpiece holder for example, a chuck for a forging workpiece, has a frame 2, in which the spindle 1 is not only rotatable about bearings 3, but also axially displaceable.
  • a positioning cylinder 4 for axial adjustment of the spindle 1 is a positioning cylinder 4.
  • a rotary drive 5 is provided, which is in drive connection with the drive wheel 6 of a traction mechanism 7.
  • the output gear 8 of the traction mechanism 7 is seated on a hollow shaft 9, which is formed, for example, as Drivenutwelle for rotationally fixed, but axially displaceable recording of the spindle 1.
  • the spindle could be axially displaced with the rotary drive 5.
  • the traction mechanism 7 is combined with a superposition drive 10 to form a unit in order to drive the spindle 1 intermittently via the output gear 8 can.
  • a carrier 11 is provided for two on both sides of the driven wheel 8 provided pulleys 12, via which the traction means 13 of the traction mechanism 7, in Embodiment, a toothed belt is guided endless, as can be seen in particular in FIG. 1.
  • the arrangement is made such that in a drawn in Fig. 1 center position of the carrier 11, the two guide rollers 12 are symmetrical to a common axial plane through the drive wheel 6 and the output gear 8 of the traction mechanism 7.
  • a spring 16 is provided, which is hinged on the one hand on the frame 2 and on the other hand to an arm 17 of the carrier 11.
  • This spring memory 16 which can be stretched from the illustrated center position shown in FIG. 1 to both sides, is stretched when holding the forging by the attacking him blacksmith tools on the carrier 11 when the pulleys 12 by the continuously driven traction means the fixed to the spindle 1 driven wheel 8 are rotated about the axis of the driven wheel 8.
  • the stored energy in the spring 16 is used for turning back the carrier 11, while the spindle 1 is released by the forging tools, so that for the carrier 11 an excited by the forging tools, rotationally oscillating drive with the effect that the spindle 1 despite the continuous Rotary drive 5 is driven intermittently in synchronism with the Schmiederwerkmaschineen.
  • the torsionally vibrating drive of the carrier 11 does not need to be done by a spring 16. It can be used different vibration drives, if only ensures that these vibration drives are controlled synchronously to drive the forging tools.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)

Abstract

The drive has a belt or chain transmission, and a continuous rotary drive for driving a drive wheel (8). A superposition drive (10) which executes rotary oscillation includes a carrier (11) that is displaceable about the axis of the drive wheel. A deflection roller (12) is mounted on the carrier for the strand side of the belt or chain running to or from the drive wheel.

Description

Die Erfindung bezieht sich auf eine Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung, insbesondere einer Schmiedemaschine, mit einem Zugmittelgetriebe aus einem endlos um ein Antriebrad und ein Abtriebrad geführten Zugmittel, mit einem kontinuierlichen Drehantrieb für das Antriebrad und mit einem Drehschwingungen ausführenden Überlagerungsantrieb.The invention relates to a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine, with a traction mechanism out of a endlessly driven around a drive wheel and an output traction means, with a continuous rotary drive for the drive wheel and with a torsional oscillatory superposition drive.

Beim Rundschmieden wird das über einen Spannkopf gehaltene und mit Hilfe einer Spindel angetriebene Werkstück während des Eingriffs der Schmiedewerkzeuge gegen ein Mitdrehen mit der Spindel durch die Schmiedewerkzeuge festgehalten, was zu einer Torsionsbelastung des Werkstücks führt, wenn nicht ein entsprechend intermittierender Antrieb für die Spindel vorgesehen wird. Zu diesem Zweck ist es bekannt (AT 278 481 B), die Spindel über ein Schneckengetriebe anzutreiben, dessen axial verschiebbar in einer hohlen Antriebswelle gelagerte Schnecke sich axial an einem Federspeicher abstützt. Dem kontinuierlichen Drehantrieb der Schnecke über ein Riemengetriebe kann sich somit ein drehschwingender Antrieb durch das Schneckengetriebe überlagern, wenn die Schnecke axial verlagert wird. Diese axiale Verlagerung tritt beim Festhalten des Werkstückes durch die Schmiedewerkzeuge auf, wobei der dabei gespannte Federspeicher für eine axiale Rückstellbewegung der Schnecke sorgt, sobald das Werkstück durch die Schmiedewerkzeuge wieder freigegeben wird. Bei einer entsprechenden Abstimmung des Resonanzverhaltens des Federspeichers auf das schwingungsfähige Antriebsystem kann somit ein mit dem Antrieb der Schmiedewerkzeuge synchroner, intermittierender Antrieb für die Spindel erreicht werden. Nachteilig bei dieser bekannten Antriebsvorrichtung für die Spindel einer Schmiedemaschine ist jedoch der vergleichsweise große Konstruktionsaufwand. Außerdem beeinträchtigt die Anordnung des Federspeichers in axialer Verlängerung der Schnecke des Schneckengetriebes den Zugang zu den Federelementen des Federspeichers, was die Anpassung der Schwingungsfrequenz des Überlagerungsantriebes an die Schlagfrequenz der Schmiedewerkzeuge durch ein Austauschen der Federelemente des Federspeichers erschwert.In forging, the chuck-held and spindle-driven workpiece is held against forging by the forging tools during engagement of the forging tools, resulting in torsional loading of the workpiece unless a correspondingly intermittent drive is provided for the spindle , For this purpose it is known (AT 278 481 B) to drive the spindle via a worm gear, the axially displaceably mounted in a hollow drive shaft screw is axially supported on a spring accumulator. The continuous rotary drive of the screw via a belt drive can thus be superimposed by a rotary-oscillating drive by the worm gear when the worm is displaced axially. This axial displacement occurs during gripping of the workpiece by the forging tools, wherein the thereby tensioned spring accumulator ensures an axial return movement of the screw as soon as the workpiece is released by the forging tools again. With a corresponding vote of the resonance behavior of the spring accumulator on the oscillatory drive system can thus a synchronous with the drive of the forging tools, intermittent drive for the spindle can be achieved. A disadvantage of this known drive device for the spindle of a forging machine, however, is the relatively large design effort. In addition, the arrangement of the spring accumulator in the axial extension of the worm of the worm gear impairs access to the spring elements of the spring accumulator, which complicates the adaptation of the oscillation frequency of the superposition drive to the frequency of blow of the forging tools by replacing the spring elements of the spring accumulator.

Der Erfindung liegt somit die Aufgabe zugrunde, eine Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung, insbesondere einer Schmiedemaschine, der eingangs geschilderten Art so auszugestalten, daß der Konstruktionsaufwand verringert und die Anpassung des drehschwingenden Überlagerungsantriebes an die jeweiligen Anforderungen erleichtert werden kann.The invention is therefore an object of the invention to provide a device for intermittently driving a spindle for a workpiece holder, in particular a forging machine of the type described in such a way that the design effort is reduced and the adaptation of the rotary oscillating superposition drive can be facilitated to the respective requirements.

Die Erfindung löst die gestellte Aufgabe dadurch, daß der Überlagerungsantrieb einen um die Achse des Abtriebrades drehschwingend verlagerbaren Träger und auf dem Träger gelagerte Umlenkrollen für die hinsichtlich des Antriebrades zu- und ablaufenden Zugmitteltrume aufweist.The invention solves this problem by the fact that the superposition drive has a rotatably movable about the axis of the driven wheel carrier and mounted on the support pulleys for the supply in relation to the drive wheel and running Zugmitteltrume.

Da zufolge dieser Maßnahmen der Überlagerungsantrieb mit dem Zugmittelgetriebe zu einer Baueinheit verbunden wird, ergeben sich einfache Konstruktionsverhältnisse. Es ist ja lediglich ein um die Achse des Abtriebrades drehschwingend verlagerbarer Träger mit Umlenkrollen für die hinsichtlich des Antriebrades zu- und ablaufseitigen Zugmitteltrume vorzusehen. Wird nun der Träger um die Achse des Abtriebrades verdreht, so verlängert sich das Zugmitteltrum zwischen dem Antriebrad und der Umlenkrolle auf der einen Seite, während sich das Zugmitteltrum zwischen Antriebrad und Umlenkrolle auf der anderen Seite verkürzt, was einen Ausgleich über das zwischen den beidseitigen Umlenkrollen über das Abtriebrad geführte Zugmitteltrum erfordert, mit dessen Verlagerung eine Drehbewegung des Abtriebrades verbunden ist. Durch ein Hin- und Herdrehen des Trägers wird somit das Abtriebrad drehschwingend verlagert, so daß dem kontinuierlichen Drehantrieb des Antriebrades mit Hilfe des Überlagerungsantriebes Drehschwingungen überlagert werden, die zu einem intermittierenden Antrieb des Abtriebrades führen. Die für den intermittierenden Antrieb des Abtriebrades erforderliche Drehschwingung des Trägers um die Achse des Abtriebrades kann in unterschiedlicher Weise den jeweiligen Anforderungen entsprechend erreicht werden, so daß sich vorteilhafte Anpassungsmöglichkeiten eröffnen.Since, according to these measures, the superposition drive with the traction mechanism is connected to form a structural unit, simple construction conditions result. It is only a rotatable about the axis of the driven wheel displaceable carrier with pulleys for the supply in relation to the drive wheel and drain side Zugmitteltrume provided. Now, if the carrier is rotated about the axis of the driven wheel, the Zugmitteltrum extended between the drive and the pulley on one side, while the Zugmitteltrum shortened between the drive wheel and pulley on the other side, which compensates for the between the two-sided pulleys via the driven wheel driven Zugmitteltrum requires, with the displacement of a rotational movement of the driven wheel is connected. By a back and forth rotation of the carrier thus the output gear is rotatably displaced, so that the continuous rotary drive of the drive wheel with the help of the superposition drive torsional vibrations are superimposed, which lead to an intermittent drive of the driven wheel. The required for the intermittent drive of the driven wheel torsional vibration of the carrier about the axis of the driven wheel can be achieved according to the respective requirements in different ways, so that open up advantageous adjustment options.

Sind die Umlenkrollen in einer Mittelstellung des Trägers symmetrisch zu einer gemeinsamen Axialebene des Antrieb- und des Abtriebrades gelagert, so ergeben sich einfache Konstruktionsverhältnisse, weil die Verlängerungen und Verkürzungen der Zugmitteltrume auf den beiden Seiten des Antriebrades aneinander weitgehend angeglichen werden können, was zusätzliche Spanneinrichtungen für das Zugmittel überflüssig macht.Are the pulleys mounted symmetrically in a central position of the carrier to a common axial plane of the drive and the driven wheel, so simple construction conditions, because the extensions and shortening Zugmitteltrume on the two sides of the drive wheel to each other can be largely aligned, which additional clamping devices for makes the traction device superfluous.

Eine weitere Konstruktionsvereinfachung ergibt sich, wenn das Abtriebrad zwischen die beidseitigen Umlenkrollen ragt und das Zugmitteltrum zwischen den beidseitigen Umlenkrollen über den zwischen die Umlenkrollen ragenden Umfangsabschnitt des Abtriebrades geführt wird. Allerdings verlangt eine solche Zugmittelführung ein Zugmittel, das auf seiner Innenseite mit dem Antriebrad und auf seiner Außenseite mit dem Abtriebrad zusammenwirkt.A further design simplification results when the driven wheel protrudes between the two-sided deflection rollers and the Zugmitteltrum is guided between the two-sided deflection rollers on the protruding between the pulleys peripheral portion of the driven wheel. However, such a Zugmittelführung requires a traction means which interacts on its inside with the drive wheel and on its outer side with the driven wheel.

Wie bereits ausgeführt wurde, stehen für den drehschwingenden Antrieb des Trägers um die Achse des Abtriebrades unterschiedliche Möglichkeiten offen, zumal der Träger keine einschränkenden Baubedingungen vorgibt. So kann der Träger für die Umlenkrollen in einfacher Weise an einen Federspeicher angelenkt werden, der nach einer Anregung durch ein periodisches Festhalten des über die Spindel angetriebenen Werkstückes den intermittierenden Antrieb für die Spindel durch resonanzbedingte Drehschwingungen des Trägers sicherstellt. Es ist aber auch möglich, den Träger für die Umlenkrollen über einen Schwingungsantrieb anzutreiben, der in Abhängigkeit vom Werkzeugantrieb gesteuert wird, was bei Änderungen im Bereich des Werkzeugantriebes ein sonst erforderliches Anpassen des Federspeichers überflüssig macht.As already stated, different possibilities are available for the torsionally vibrating drive of the carrier about the axis of the driven wheel, especially since the carrier does not specify any restrictive construction conditions. Thus, the support for the deflection rollers can be hinged in a simple manner to a spring accumulator, which ensures the intermittent drive for the spindle by resonance-induced torsional vibrations of the carrier after an excitation by periodically holding the workpiece driven via the spindle. But it is also possible to drive the support for the pulleys via a vibratory drive, which is controlled in dependence on the tool drive, resulting in changes in the field of tool drive makes an otherwise necessary adjustment of the spring accumulator superfluous.

Als Zugmittel für das Zugmittelgetriebe können Seile, Riemen oder Ketten zum Einsatz kommen. Besonders vorteilhafte Konstruktionsverhältnisse ergeben sich jedoch, wenn das Zugmittelgetriebe als Zahnriemengetriebe ausgebildet ist, weil mit dem Zahnriemen eine formschlüssige Verbindung zwischen dem An- und dem Abtriebrad ohne besonderen konstruktiven Aufwand erreicht wird.As a traction device for the traction mechanism ropes, belts or chains can be used. Particularly advantageous construction conditions, however, arise when the traction mechanism is designed as a toothed belt transmission, because with the timing belt a positive connection between the arrival and the driven wheel is achieved without special design effort.

In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt. Es zeigen

Fig. 1
eine erfindungsgemäße Vorrichtung zum intermittierenden Antreiben einer Spindel für eine Werkstückhalterung in einer vereinfachten Stirnansicht und
Fig. 2
diese Vorrichtung in einem Schnitt nach der Linie II-II der Fig. 1.
In the drawing, the subject invention is shown, for example. Show it
Fig. 1
an inventive device for intermittently driving a spindle for a workpiece holder in a simplified end view and
Fig. 2
this device in a section along the line II-II of Fig. 1st

Die dargestellte Vorrichtung zum intermittierenden Antreiben einer Spindel 1 für eine Werkstückhalterung, beispielsweise einen Spannkopf für ein Schmiedewerkstück, weist ein Gestell 2 auf, in dem die Spindel 1 über Lager 3 nicht nur drehbar, sondern auch axial verschiebbar gelagert ist. Zum axialen Verstellen der Spindel 1 dient ein Stellzylinder 4. Zur Drehung der Spindel 1 ist ein Drehantrieb 5 vorgesehen, der mit dem Antriebrad 6 eines Zugmittelgetriebes 7 in Antriebsverbindung steht. Das Abtriebrad 8 des Zugmittelgetriebes 7 sitzt auf einer Hohlwelle 9, die beispielsweise als Vielnutwelle zur drehfesten, aber axial verschiebbaren Aufnahme der Spindel 1 ausgebildet ist. Statt der gegenüber dem Drehantrieb 5 axial verstellbaren Spindel 1 könnte die Spindel auch mit dem Drehantrieb 5 axial verlagert werden.The illustrated apparatus for intermittently driving a spindle 1 for a workpiece holder, for example, a chuck for a forging workpiece, has a frame 2, in which the spindle 1 is not only rotatable about bearings 3, but also axially displaceable. For axial adjustment of the spindle 1 is a positioning cylinder 4. For rotation of the spindle 1, a rotary drive 5 is provided, which is in drive connection with the drive wheel 6 of a traction mechanism 7. The output gear 8 of the traction mechanism 7 is seated on a hollow shaft 9, which is formed, for example, as Vielnutwelle for rotationally fixed, but axially displaceable recording of the spindle 1. Instead of the relative to the rotary drive 5 axially adjustable spindle 1, the spindle could be axially displaced with the rotary drive 5.

Das Zugmittelgetriebe 7 ist mit einem Überlagerungsantrieb 10 zu einer Baueinheit zusammengefaßt, um die Spindel 1 über das Abtriebrad 8 intermittierend antreiben zu können. Zu diesem Zweck ist auf der Hohlwelle 9 ein Träger 11 für zwei beidseits des Abtriebrades 8 vorgesehene Umlenkrollen 12 vorgesehen, über die das Zugmittel 13 des Zugmittelgetriebes 7, im Ausführungsbeispiel ein Zahnriemen, endlos geführt ist, wie dies insbesondere der Fig. 1 entnommen werden kann. Die Anordnung ist dabei so getroffen, daß in einer in der Fig. 1 gezeichneten Mittelstellung des Trägers 11 die beiden Umlenkrollen 12 symmetrisch zu einer gemeinsamen Axialebene durch das Antriebrad 6 und das Abtriebrad 8 des Zugmittelgetriebes 7 liegen. Wird der Träger aus der mittleren Stellung verdreht, so wird eines der beiden Zugmitteltrume 14 zwischen dem Antriebrad 6 einerseits und den beiden Umlenkrollen 12 anderseits verlängert und das andere verkürzt, was eine Verlagerung des über das Abtriebrad 8 geführten Zugmitteltrums 15 zwischen den Umlenkrollen 12 zum Längenausgleich der Zugmitteltrume 14 und damit eine Drehung des Abtriebrades 8 zur Folge hat. Da diese Drehung des Abtriebrades 8 von der Drehrichtung des Trägers 11 abhängt, kann durch einen drehschwingenden Antrieb des Trägers 11 das Abtriebrad 8 hin- und hergedreht werden, wobei sich dieser drehschwingende Antrieb des Abtriebrades 8 der kontinuierlichen Umlaufbewegung des Zugmittels 13 durch das angetriebene Antriebrad 6 überlagert und den geforderten intermittierenden Antrieb für die Spindel 1 sichert.The traction mechanism 7 is combined with a superposition drive 10 to form a unit in order to drive the spindle 1 intermittently via the output gear 8 can. For this purpose, on the hollow shaft 9, a carrier 11 is provided for two on both sides of the driven wheel 8 provided pulleys 12, via which the traction means 13 of the traction mechanism 7, in Embodiment, a toothed belt is guided endless, as can be seen in particular in FIG. 1. The arrangement is made such that in a drawn in Fig. 1 center position of the carrier 11, the two guide rollers 12 are symmetrical to a common axial plane through the drive wheel 6 and the output gear 8 of the traction mechanism 7. If the carrier is rotated from the middle position, then one of the two Zugmitteltrume 14 between the drive wheel 6 on the one hand and the two pulleys 12 on the other hand extended and shortened the other, resulting in a displacement of the guided over the driven wheel 8 Zugmitteltrums 15 between the guide rollers 12 for length compensation the Zugmitteltrume 14 and thus has a rotation of the driven wheel 8 result. Since this rotation of the driven wheel 8 depends on the direction of rotation of the carrier 11, the driven wheel 8 can be reciprocated by a rotationally vibrating drive of the carrier 11, wherein this rotationally oscillating drive of the driven wheel 8 of the continuous circulation movement of the traction means 13 by the driven drive. 6 superimposed and the required intermittent drive for the spindle 1 secures.

Zum drehschwingenden Antrieb des Trägers 11 ist ein Federspeicher 16 vorgesehen, der einerseits am Gestell 2 und anderseits an einem Arm 17 des Trägers 11 angelenkt ist. Dieser Federspeicher 16, der aus der dargestellten Mittelstellung gemäß der Fig. 1 nach beiden Seiten hin gespannt werden kann, wird beim Festhalten des Schmiedewerkstückes durch die an ihn angreifenden Schmiedewerkzeuge über den Träger 11 gespannt, wenn durch das kontinuierlich angetriebene Zugmittel 13 die Umlenkrollen 12 gegenüber dem mit der Spindel 1 festgehaltenen Abtriebrad 8 um die Achse des Abtriebrades 8 gedreht werden. Die im Federspeicher 16 gespeicherte Energie dient zum Rückdrehen des Trägers 11, während die Spindel 1 durch die Schmiedewerkzeuge freigegeben wird, so daß sich für den Träger 11 ein durch die Schmiedewerkzeuge angeregter, drehschwingender Antrieb mit der Wirkung ergibt, daß die Spindel 1 trotz des kontinuierlichen Drehantriebes 5 synchron zu den Schmiederwerkzeugen intermittierend angetrieben wird.For torsionally vibrating drive of the carrier 11, a spring 16 is provided, which is hinged on the one hand on the frame 2 and on the other hand to an arm 17 of the carrier 11. This spring memory 16, which can be stretched from the illustrated center position shown in FIG. 1 to both sides, is stretched when holding the forging by the attacking him blacksmith tools on the carrier 11 when the pulleys 12 by the continuously driven traction means the fixed to the spindle 1 driven wheel 8 are rotated about the axis of the driven wheel 8. The stored energy in the spring 16 is used for turning back the carrier 11, while the spindle 1 is released by the forging tools, so that for the carrier 11 an excited by the forging tools, rotationally oscillating drive with the effect that the spindle 1 despite the continuous Rotary drive 5 is driven intermittently in synchronism with the Schmiederwerkzeugen.

Der drehschwingende Antrieb des Trägers 11 braucht jedoch keineswegs durch einen Federspeicher 16 zu erfolgen. Es können unterschiedliche Schwingungsantriebe eingesetzt werden, wenn nur sichergestellt ist, daß diese Schwingungsantriebe synchron zum Antrieb der Schmiedewerkzeuge gesteuert werden.However, the torsionally vibrating drive of the carrier 11 does not need to be done by a spring 16. It can be used different vibration drives, if only ensures that these vibration drives are controlled synchronously to drive the forging tools.

Claims (6)

  1. Device for intermittently driving a spindle (1) for a workpiece holder, in particular of a forging machine, having a traction gear (7) comprising a traction means (13) guided endlessly around a driving gear (6) and an output gear (8), with a continuous rotary drive (5) for the driving gear (6) and with an incremental drive (10) carrying out torsional vibrations, characterised in that the incremental drive (10) comprises a carrier (11) which can be moved with torsional vibration around the axis of the output gear (8) and diverting rollers (12) mounted on the carrier (11) for the belt sections (14) running to and from the driving gear (6).
  2. Device according to claim 1, characterised in that the diverting rollers (12) are mounted, in a middle position of the carrier (11), symmetrically to a common axial plane of the driving gear and output gear (6, 8).
  3. Device according to claim 1 or 2, characterised in that the output gear (8) projects between the diverting rollers (12) on both sides and in that the belt section (15) runs between the diverting rollers (12) on both sides over the peripheral section of the output gear (8) projecting between the diverting rollers (12).
  4. Device according to one of the claims 1 to 3, characterised in that the carrier (11) for the diverting rollers (12) rests on a spring-loaded accumulator (16).
  5. Device according to one of the claims 1 to 5, characterised in that the carrier (11) for the diverting rollers (12) is connected to an oscillating drive.
  6. Device according to one of the claims 1 to 5. characterised in that the traction gear (7) is designed as a cog belt drive.
EP05450093A 2004-05-26 2005-05-24 Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine Active EP1600228B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT05450093T ATE344703T1 (en) 2004-05-26 2005-05-24 DEVICE FOR INTERMITTENTLY DRIVING A SPINDLE FOR A WORKPIECE HOLDER, IN PARTICULAR A FORGING MACHINE

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT9052004 2004-05-26
AT0090504A AT501482B8 (en) 2004-05-26 2004-05-26 DEVICE FOR INTERMITTENTLY DRIVING A SPINDLE FOR A WORKPIECE BRACKET, ESPECIALLY A FORGING MACHINE

Publications (2)

Publication Number Publication Date
EP1600228A1 EP1600228A1 (en) 2005-11-30
EP1600228B1 true EP1600228B1 (en) 2006-11-08

Family

ID=34943338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05450093A Active EP1600228B1 (en) 2004-05-26 2005-05-24 Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine

Country Status (5)

Country Link
US (1) US7678001B2 (en)
EP (1) EP1600228B1 (en)
AT (2) AT501482B8 (en)
DE (1) DE502005000171D1 (en)
ES (1) ES2276385T3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011082764A1 (en) * 2010-10-13 2012-04-19 Schaeffler Technologies Gmbh & Co. Kg Clamping device for a traction mechanism drive of an internal combustion engine
DE102013002993A1 (en) * 2013-02-22 2014-08-28 Schaeffler Technologies Gmbh & Co. Kg Starter Generator - Belt Tensioner
JP2014232284A (en) * 2013-05-30 2014-12-11 ブラザー工業株式会社 Image forming apparatus
FR3018712B1 (en) * 2014-03-20 2016-12-30 Arts DRILLING TOOL WITH TWO COAXIAL ENGINES
AT516507B1 (en) 2014-12-02 2016-06-15 Gfm-Gmbh forging machine
US9528576B2 (en) 2015-04-14 2016-12-27 Deere & Company Drive system with hydraulic idler tensioner
CN112664630B (en) * 2021-03-18 2021-05-14 华南新海(深圳)科技股份有限公司 Adjustable external drive type intermittent butt joint transmission mechanism

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US976115A (en) * 1910-11-15 Burke Electric Company Power mechanism.
US315735A (en) * 1885-04-14 Device for transmitting power
US952156A (en) * 1908-11-02 1910-03-15 Benjamin Trewhella Roller-grip for band-gearing.
US1016787A (en) * 1908-12-31 1912-02-06 Daniel D Sewall Belt-tightener.
US2425476A (en) * 1945-04-30 1947-08-12 Lade Frederick Leonard Clothesline tightener
US2584512A (en) * 1948-08-13 1952-02-05 Claude A Strait Caterpillar attachment for trucks
US2900831A (en) * 1956-11-15 1959-08-25 Ibm Shock absorbing mechanism
AT278481B (en) * 1968-08-01 1970-02-10 Ges Fertigungstechnik & Maschb Clamping head for forging machines
US4012964A (en) * 1975-02-14 1977-03-22 Yuan Ho Lee Intermittent rotary mechanism
US4564098A (en) * 1979-06-21 1986-01-14 Hormann Kg Drive assembly for door operator
US4758208A (en) * 1987-07-13 1988-07-19 General Motors Corporation Automatic belt tensioner for vehicle combined starter-generator
US4929218A (en) * 1989-07-21 1990-05-29 Clough Robert L Continuously variable transmission
DE3942942C1 (en) * 1989-12-23 1991-06-20 Eumuco Aktiengesellschaft Fuer Maschinenbau, 5090 Leverkusen, De
US5067423A (en) * 1990-06-06 1991-11-26 Thompson Elmer R Sewing machine drive assembly, including pulley belt traction enhancement device
US5221236A (en) * 1990-07-10 1993-06-22 Raymer Matthew C Belt tensioning device for belt driven bicycle
AT396883B (en) * 1992-08-13 1993-12-27 Gfm Fertigungstechnik CLAMPING HEAD FOR FORGING MACHINES
US5676447A (en) * 1993-01-21 1997-10-14 The Fire Products Company Signal light oscillating mechanism
US6324872B1 (en) * 1996-04-12 2001-12-04 Corning Incorporated Method and apparatus for introducing controlled spin in optical fibers
DE19926615A1 (en) * 1999-06-11 2000-12-14 Schaeffler Waelzlager Ohg Tensioning device for traction devices such as belts or chains
DE19926612A1 (en) * 1999-06-11 2000-12-14 Schaeffler Waelzlager Ohg Belt drive of an internal combustion engine
US6312352B1 (en) * 1999-09-10 2001-11-06 Deere & Company Synchronous belt drive tensioning assembly
ATE382809T1 (en) * 2000-10-03 2008-01-15 Gates Corp TENSIONING DEVICE FOR THE BELT DRIVE OF AUXILIARY UNITS AND THE MOTOR/GENERATOR
US6830524B2 (en) * 2002-05-23 2004-12-14 General Motors Corporation Crank drive belt system with triple pulley tensioner
EP1437528B1 (en) * 2003-01-10 2010-03-10 Muhr und Bender KG Belt tensioner

Also Published As

Publication number Publication date
DE502005000171D1 (en) 2006-12-21
ATE344703T1 (en) 2006-11-15
EP1600228A1 (en) 2005-11-30
AT501482A1 (en) 2006-09-15
AT501482B1 (en) 2006-09-15
US20050272543A1 (en) 2005-12-08
AT501482B8 (en) 2007-02-15
ES2276385T3 (en) 2007-06-16
US7678001B2 (en) 2010-03-16

Similar Documents

Publication Publication Date Title
EP1600228B1 (en) Device for intermittently driving a spindle of a workpiece holder, in particular of a forging machine
EP1600227B1 (en) Forging device
DE68907028T2 (en) MICROBEATER FOR MARKING.
DE10035977A1 (en) Method and device for machining workpiece surfaces
DE2102412B2 (en) ADJUSTMENT DEVICE ON CRANKSHAFT GRINDING MACHINES FOR ALIGNING THE CRANK PIN TO BE GRINDED
AT520666B1 (en) Coring machine for coring cast workpieces and process for producing cast workpieces
DE3133729C2 (en) Vibratory drive device
DE2555604B2 (en) DEVICE FOR ADJUSTING THE CONTINUOUS RUNNING OF THE ROLLER PROFILES OF A PAIR OF TOOL ROLLERS ON A WEDGE CROSS ROLLING MACHINE
DE4443512A1 (en) Machine tool for straight or curved workpieces esp. from wood
DE3919359C1 (en) Grinding machine tool support with linear tool holder - has inner eccentric bush, holding vibration axis bush in its bore
DE202011003176U1 (en) Device for band finishing
DE2403574C2 (en) Lapping machine
DE2148801A1 (en) ROLL SHAPING MACHINE FOR THE PRODUCTION OF GEARS OR THE LIKE
DE2304632C3 (en) Brush transport device for a plastering machine
DE10326455B4 (en) Folding blade drive of a folding machine
EP0558885A2 (en) Portable machine tool, in particular, portable hand-operated circular saw
WO2017103289A1 (en) Machine tool and method for finely machining bearing bores of a bearing line
DE10234770B3 (en) Device for producing hollow molds from food masses
DE2158777A1 (en) Wire and strip press feed mechanism - with adjustable feed length
DE2806584A1 (en) Eccentric press counterbalance mechanism - has movable mass element with assembly driven in opposite phase relative to press main shaft
DE20122200U1 (en) Workpiece surface machining process involves machining surfaces with one tool unit containing machining roll and one tool unit containing plate-type tools
DE970907C (en) Device for stretch forging
DE20006315U1 (en) Labeling device
DE2415777A1 (en) REQUIRED STEPPING GEAR
DE102011012337B4 (en) Device for band finishing

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17P Request for examination filed

Effective date: 20051223

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

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

Ref country code: NL

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

Effective date: 20061108

Ref country code: SK

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

Effective date: 20061108

Ref country code: RO

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

Effective date: 20061108

Ref country code: FI

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

Effective date: 20061108

Ref country code: CZ

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

Effective date: 20061108

Ref country code: SI

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

Effective date: 20061108

Ref country code: PL

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

Effective date: 20061108

Ref country code: IE

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

Effective date: 20061108

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

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: 502005000171

Country of ref document: DE

Date of ref document: 20061221

Kind code of ref document: P

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

Ref country code: DK

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

Effective date: 20070208

Ref country code: BG

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

Effective date: 20070208

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. AG PATENT- UND MARKENANWAELTE VSP

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

Effective date: 20070131

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

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

Ref country code: IS

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

Effective date: 20070308

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

Ref country code: PT

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

Effective date: 20070409

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2276385

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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: 20070809

BERE Be: lapsed

Owner name: GFM BETEILIGUNGS- UND MANAGEMENT GMBH & CO KG

Effective date: 20070531

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

Ref country code: MC

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

Effective date: 20070531

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

Ref country code: BE

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

Effective date: 20070531

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

Ref country code: GR

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

Effective date: 20070209

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

Ref country code: LT

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

Effective date: 20061108

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

Ref country code: EE

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

Effective date: 20061108

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

Ref country code: CY

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

Effective date: 20061108

Ref country code: LU

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

Effective date: 20070524

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

Ref country code: TR

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

Effective date: 20061108

Ref country code: HU

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

Effective date: 20070509

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

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

Ref country code: FR

Payment date: 20210526

Year of fee payment: 17

Ref country code: IT

Payment date: 20210520

Year of fee payment: 17

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

Ref country code: GB

Payment date: 20210526

Year of fee payment: 17

Ref country code: ES

Payment date: 20210607

Year of fee payment: 17

Ref country code: CH

Payment date: 20210521

Year of fee payment: 17

Ref country code: SE

Payment date: 20210527

Year of fee payment: 17

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

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

Effective date: 20220524

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: 20220525

Ref country code: LI

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

Effective date: 20220531

Ref country code: CH

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

Effective date: 20220531

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

Ref country code: FR

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

Effective date: 20220531

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

Ref country code: GB

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

Effective date: 20220524

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230630

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

Ref country code: IT

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

Effective date: 20220524

Ref country code: ES

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

Effective date: 20220525

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

Ref country code: DE

Payment date: 20240529

Year of fee payment: 20

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

Ref country code: AT

Payment date: 20240516

Year of fee payment: 20