EP2014834B1 - Spinnerdisc for Winterservice-Spreading-Apparatus - Google Patents

Spinnerdisc for Winterservice-Spreading-Apparatus Download PDF

Info

Publication number
EP2014834B1
EP2014834B1 EP20080159941 EP08159941A EP2014834B1 EP 2014834 B1 EP2014834 B1 EP 2014834B1 EP 20080159941 EP20080159941 EP 20080159941 EP 08159941 A EP08159941 A EP 08159941A EP 2014834 B1 EP2014834 B1 EP 2014834B1
Authority
EP
European Patent Office
Prior art keywords
spreading disc
spreading
rotation axis
segments
adjacent segments
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
EP20080159941
Other languages
German (de)
French (fr)
Other versions
EP2014834A3 (en
EP2014834A2 (en
Inventor
Claus Bringmann
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.)
Kugelmann Siegfried
Original Assignee
Kugelmann Siegfried
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 Kugelmann Siegfried filed Critical Kugelmann Siegfried
Publication of EP2014834A2 publication Critical patent/EP2014834A2/en
Publication of EP2014834A3 publication Critical patent/EP2014834A3/en
Application granted granted Critical
Publication of EP2014834B1 publication Critical patent/EP2014834B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • E01C19/12—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 distributing granular or liquid materials
    • E01C19/20—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders
    • E01C19/201—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels
    • E01C19/202—Apparatus for distributing, e.g. spreading, granular or pulverulent materials, e.g. sand, gravel, salt, dry binders with driven loosening, discharging or spreading parts, e.g. power-driven, drive derived from road-wheels solely rotating, e.g. discharging and spreading drums
    • E01C19/203—Centrifugal spreaders with substantially vertical axis

Definitions

  • the invention relates to a spreading plate for a winter service spreader according to the preamble of claim 1.
  • a power plate is for example from the DE-C-4039795 or the GB-A-2014023 known.
  • the spreading plate should distribute the spreading material as evenly as possible across the width of the roadway. To achieve this goal is out of the DE 40 39 795 C1 known to arrange the radially inner ends of all throwing blades on the same radius and the radially outer ends of the throwing blades at different radii, the outer edge of the spreading plate in the radial direction to the rotation axis flush with the outer ends of the individual throwing blades. By aligning the contour of the spreading plate to the different ends of the individual throwing blades arise different grit compartments with different throw sizes and different widths, so that the non-uniform spreading material distributions can be compensated within the grit compartments of the longer throwing blades by the smaller grit compartments of the smaller throwing blades.
  • a spreading plate is known, on the surface of which a concave or convex shape can be adjusted to adapt to a desired spreading tendency.
  • the GB 2 014 023 A discloses a disc-shaped spreading plate having on its surface an inner throwing element, on which two outer throwing elements are pivotally mounted and preferably inclined to each other differently.
  • a device for the uniform dusting of solid or liquid materials in which a plurality of inclined to the axis of rotation tubes of equal length are fixed to a rotatable cylindrical distribution body, which are bent at half the length, so that the free ends with respect to a plane perpendicular to the axis of rotation inclined differently , where the differences between the angles of inclination form a Fibonacci sequence.
  • the object of the invention is therefore to find a different solution in order to achieve a uniform spreading material distribution over the desired spreading width.
  • the differently inclined segments cause correspondingly different casting distances, which complement each other to a very uniform scattering pattern.
  • some, preferably all adjacent segments have different sizes.
  • At least 50%, preferably 80 to 100%, of the radial extent of the spreading plate surface of the segments is inclined relative to an inner region of the spreading plate.
  • the inclination is achieved for example by Aufkantung the scattering plate surface relative to an inner region of the spreading plate.
  • the throwing blades are arc-shaped or rectilinear.
  • the scattering plate is circular in plan view and the radially inner ends of the throwing blades are arranged at the same radial distance from the axis of rotation.
  • the radially outer ends of the throwing vanes preferably have the same radial distance from the axis of rotation.
  • the scattering plate may be subdivided into a plurality of groups each having at least two, preferably three to five, throwing blades, each of which has the same design, with the inclination of the spreading plate surface of adjacent segments continuously increasing or decreasing within a group.
  • the inclination of the spreading plate surface of adjacent segments is alternately larger and smaller than the previous inclination is formed.
  • the invention relates to a spreader with a spreading plate according to the type described above, at least one storage container for grit and a feeder to supply the grit from the reservoir to the spreading plate.
  • the invention comprises a winter service spreader with such a spreader.
  • This in Fig. 1 illustrated winter service spreader 1 has a spreader 2, which essentially comprises the following components: a first reservoir 3 for a first spreading material (for example, salt), a second reservoir 4 for a second spreading material (for example brine), a spreading plate 5 and a feeder 6, to supply the spreading material from the storage containers to the spreading plate 5.
  • a first spreading material for example, salt
  • a second reservoir 4 for a second spreading material for example brine
  • a spreading plate 5 for example brine
  • a feeder 6 to supply the spreading material from the storage containers to the spreading plate 5.
  • the scattering plate is rotatably drivable about a rotation axis 7 and has on its spreading plate surface radially extending throwing blades 8, which divide the spreading plate between them into segments 9.
  • At least the radially outer regions 5a of the spreading plate surface of adjacent segments have different inclinations.
  • the inclination angles of the scattering plate surfaces with respect to a perpendicular to the axis of rotation are in the range of 0 ° ⁇ ⁇ 30 °, preferably 0 ° ⁇ ⁇ 20 °.
  • the radially outer portions 5a of the spreading plate surfaces against an inner portion 10 of the spreading disc are the angles ⁇ 1, ⁇ 2, ⁇ 3 or ⁇ upstands 4, wherein ⁇ 1 ⁇ 2 ⁇ 3 ⁇ . 4
  • the throwing blades 8 are formed here in a straight line and arranged with the radially inner ends with the same radial distance from the axis of rotation 7.
  • the radially outer ends of the throwing blades 8 are arranged at the same radial distance from the axis of rotation, so that the scattering plate is circular in plan view.
  • the scattering plate can be divided into several groups of at least 2, preferably 3 to 5 throwing blades with associated segments.
  • Fig. 2 For example, three groups each with four segments 9 are provided, wherein the successive segments of a group - seen in the circumferential direction, with an ever-increasing angle ( ⁇ 1 , ⁇ 2 , ⁇ 3 , ⁇ 4 ) are folded up. After the segment with the Aufkantungswinkel ⁇ 4 then again follows a segment with the Aufkantungswinkel ⁇ 1 and so on.
  • Fig. 4 is a second embodiment of a spreading plate 5 'is shown, which in turn on its spreading disc surface radially extending throwing blades 8' provides that the scattering plate between them in segments 9'a, 9'b, 9'c, 9 "a, 9" b and 9 "c subdivide.
  • a part of the spreading plate surface with different inclinations with respect to the axis of rotation are also formed here at least in some, preferably in all adjacent segments.
  • the size of the segment corresponds to the magnitude of the inclination such that the smallest segment 9'a has the smallest inclination (for example in accordance with FIG Fig. 3a ), the middle-sized segment 9'b has an average inclination (for example according to FIG Fig. 3b ) and the large segment 9'c has a large inclination (for example according to FIG Fig. 3c ) having.
  • Fig. 4 shown spreading pattern, which of course in each segment the same grit is included. Only To represent the scattering pattern, different symbols (square, triangle, circle) were used for the spreading material in the individual segments of a group.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Nozzles (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Catching Or Destruction (AREA)
  • Treatment Of Fiber Materials (AREA)

Description

Die Erfindung betrifft einen Streuteller für ein Winterdienst-Streugerät nach dem Oberbegriff des Anspruchs 1. Ein solcher Strenteller ist z.B. aus der DE-C-4039795 oder der GB-A-2014023 bekannt.The invention relates to a spreading plate for a winter service spreader according to the preamble of claim 1. Such a power plate is for example from the DE-C-4039795 or the GB-A-2014023 known.

Der Streuteller soll das Streugut möglichst gleichmäßig über die Breite der Fahrbahn verteilen. Um dieses Ziel zu erreichen, ist aus der DE 40 39 795 C1 bekannt, die radial innen liegenden Enden aller Wurfschaufeln auf dem gleichen Radius und die radial außen liegenden Enden der Wurfschaufeln auf unterschiedlichen Radien anzuordnen, wobei die Außenkante des Streutellers in radialer Richtung zur Drehachse mit den außen liegenden Enden der einzelnen Wurfschaufeln bündig abschließt. Durch die Angleichung der Kontur des Streutellers an die unterschiedlichen Enden der einzelnen Wurfschaufeln entstehen unterschiedliche Streugutfächer mit unterschiedlichen Wurfweiten und unterschiedlichen Breiten, sodass sich die ungleichförmigen Streugutverteilungen innerhalb der Streugutfächer der längeren Wurfschaufeln durch die kleineren Streugutfächer der kleineren Wurfschaufeln ausgleichen lassen.The spreading plate should distribute the spreading material as evenly as possible across the width of the roadway. To achieve this goal is out of the DE 40 39 795 C1 known to arrange the radially inner ends of all throwing blades on the same radius and the radially outer ends of the throwing blades at different radii, the outer edge of the spreading plate in the radial direction to the rotation axis flush with the outer ends of the individual throwing blades. By aligning the contour of the spreading plate to the different ends of the individual throwing blades arise different grit compartments with different throw sizes and different widths, so that the non-uniform spreading material distributions can be compensated within the grit compartments of the longer throwing blades by the smaller grit compartments of the smaller throwing blades.

Aus der DE 201 17 882 U1 ist weiterhin ein Streuteller bekannt, an dessen Oberfläche zum Anpassen an eine gewünschte Streubereite eine konkave oder konvexe Form einstellbar ist.From the DE 201 17 882 U1 Furthermore, a spreading plate is known, on the surface of which a concave or convex shape can be adjusted to adapt to a desired spreading tendency.

Ferner ist aus der EP 1 208 733 A1 ein in zwei Drehrichtungen antreibbarer Streuteller bekannt, bei dem auf der Streutelleroberfläche für eine unterschiedliche Streuverteilung je Drehrichtung zwei radial verlaufende Wurfschaufeln vorgesehen sind, die mit einer gegenüber der Drehachse geneigten Verbindungsplatte verbunden sind.Furthermore, from the EP 1 208 733 A1 a spreader plate drivable in two directions of rotation, in which two radially extending throwing vanes are provided on the spreading plate surface for a different scattering distribution per direction of rotation, which are connected to a connecting plate inclined with respect to the axis of rotation.

Die GB 2 014 023 A offenbart einen scheibenförmigen Streuteller, der an seiner Oberfläche ein inneres Wurfelement aufweist, an dem zwei äußere Wurfelemente schwenkbar befestigt sind und die vorzugsweise zueinander unterschiedlich geneigt sind.The GB 2 014 023 A discloses a disc-shaped spreading plate having on its surface an inner throwing element, on which two outer throwing elements are pivotally mounted and preferably inclined to each other differently.

Daneben ist aus der DE 1 457 818 ein Gerät zum gleichmäßigen Verstäuben von festen oder flüssigen Stoffen bekannt, bei dem an einem drehbaren zylindrischen Verteilungskörper mehrere zur Drehachse geneigte Rohre gleicher Länge befestigt sind, die auf halber Länge gekröpft sind, so dass die freien Enden gegenüber einer rechtwinklig zur Drehachse verlaufenden Ebene unterschiedlich geneigt sind, wobei die Differenzen zwischen den Neigungswinkeln eine Fibonacci-Folge bilden.Besides that is from the DE 1 457 818 a device for the uniform dusting of solid or liquid materials, in which a plurality of inclined to the axis of rotation tubes of equal length are fixed to a rotatable cylindrical distribution body, which are bent at half the length, so that the free ends with respect to a plane perpendicular to the axis of rotation inclined differently , where the differences between the angles of inclination form a Fibonacci sequence.

Der Erfmdung liegt nun die Aufgabe zugrunde, einen anderen Lösungsweg zu finden, um eine gleichförmige Streugutverteilung über die gewünschte Streubreite zu erzielen.The object of the invention is therefore to find a different solution in order to achieve a uniform spreading material distribution over the desired spreading width.

Erfindungsgemäß wird diese Aufgabe durch die Merkmale des Anspruches 1 gelöst.According to the invention, this object is solved by the features of claim 1.

Die unterschiedlich geneigten Segmente bewirken entsprechend unterschiedliche Wurfweiten, die sich zu einem sehr gleichförmigen Streubild ergänzen.The differently inclined segments cause correspondingly different casting distances, which complement each other to a very uniform scattering pattern.

Weitere Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.Further embodiments of the invention are the subject of the dependent claims.

In einer bevorzugten Ausgestaltung der Erfindung weisen einige, vorzugsweise alle benachbarten Segmente unterschiedliche Größen auf.In a preferred embodiment of the invention, some, preferably all adjacent segments have different sizes.

Weiterhin sind wenigstens 50%, vorzugsweise 80 bis 100% der radialen Erstreckung der Streutelleroberfläche der Segmente gegenüber einem inneren Bereich des Streutellers geneigt ausgebildet. Die Neigung wird dabei beispielsweise durch Aufkantung der Streutelleroberfläche gegenüber einem inneren Bereich des Streutellers erreicht. Die Wurfschaufeln sind bogenförmig oder geradlinig ausgebildet.Furthermore, at least 50%, preferably 80 to 100%, of the radial extent of the spreading plate surface of the segments is inclined relative to an inner region of the spreading plate. The inclination is achieved for example by Aufkantung the scattering plate surface relative to an inner region of the spreading plate. The throwing blades are arc-shaped or rectilinear.

Gemäß einer bevorzugten Ausgestaltung ist der Streuteller in seiner Draufsicht kreisförmig ausgebildet und die radial innen liegenden Enden der Wurfschaufeln sind mit gleichem radialen Abstand zur Drehachse angeordnet. Auch die radial außen liegenden Enden der Wurfschaufeln weisen vorzugsweise den gleichen radialen Abstand zur Drehachse auf.According to a preferred embodiment of the scattering plate is circular in plan view and the radially inner ends of the throwing blades are arranged at the same radial distance from the axis of rotation. The radially outer ends of the throwing vanes preferably have the same radial distance from the axis of rotation.

Die Anordnung der unterschiedlich geneigten Segmente in Umfangsrichtung des Streutellers ist auf unterschiedliche Arten denkbar. So kann der Streuteller beispielsweise in mehrere Gruppen mit jeweils wenigstens zwei, vorzugsweise drei bis fünf Wurfschaufeln unterteilt sein, die jeweils gleich aufgebaut sind, wobei sich innerhalb einer Gruppe die Neigung der Streutelleroberfläche benachbarter Segmente kontinuierlich vergrößert oder verkleinert. Es wäre aber auch denkbar, dass - in Umfangsrichtung des Streutellers gesehen - die Neigung der Streutelleroberfläche benachbarter Segmente abwechselnd größer und kleiner als die vorhergehende Neigung ausgebildet ist.The arrangement of the differently inclined segments in the circumferential direction of the spreading plate is conceivable in different ways. For example, the scattering plate may be subdivided into a plurality of groups each having at least two, preferably three to five, throwing blades, each of which has the same design, with the inclination of the spreading plate surface of adjacent segments continuously increasing or decreasing within a group. But it would also be conceivable that - seen in the circumferential direction of the spreading plate - the inclination of the spreading plate surface of adjacent segments is alternately larger and smaller than the previous inclination is formed.

Weiterhin betrifft die Erfindung einen Streuautomat mit einem Streuteller gemäß der oben beschriebenen Art, wenigstens einem Vorratsbehälter für Streugut sowie einer Zuführeinrichtung, um das Streugut vom Vorratsbehälter dem Streuteller zuzuführen.Furthermore, the invention relates to a spreader with a spreading plate according to the type described above, at least one storage container for grit and a feeder to supply the grit from the reservoir to the spreading plate.

Außerdem umfasst die Erfindung ein Winterdienst-Streugerät mit einem derartigen Streuautomat.In addition, the invention comprises a winter service spreader with such a spreader.

Weitere Ausgestaltungen und Vorteile der Erfindung werden im Folgenden anhand der Beschreibung und der Zeichnung näher erläutert.Further embodiments and advantages of the invention are explained in more detail below with reference to the description and the drawing.

In der Zeichnung zeigen

Fig. 1
eine schematische Darstellung eines Winterdienst-Streugerätes,
Fig. 2
eine schematische Draufsicht eines Streutellers gemäß einem ersten Ausführungsbeispiel,
Fig. 3A-3D
verschiedene Schnittdarstellungen benachbarter Segmente,
Fig. 4
eine schematische Draufsicht eines Streutellers mit Streubild gemäß einem zweiten Ausführungsbeispiel.
In the drawing show
Fig. 1
a schematic representation of a winter service spreader,
Fig. 2
a schematic plan view of a scattering plate according to a first embodiment,
Fig. 3A-3D
different sectional views of adjacent segments,
Fig. 4
a schematic plan view of a scattering plate with spreading pattern according to a second embodiment.

Das in Fig. 1 dargestellte Winterdienst-Streugerät 1 weist einen Streuautomat 2 auf, der im Wesentlichen folgende Bestandteile umfasst: einen ersten Vorratsbehälter 3 für ein erstes Streugut (beispielsweise Salz), einen zweiten Vorratsbehälter 4 für ein zweites Streugut (beispielsweise Sole), einen Streuteller 5 sowie eine Zuführeinrichtung 6, um das Streugut von den Vorratsbehältern dem Streuteller 5 zuzuführen.This in Fig. 1 illustrated winter service spreader 1 has a spreader 2, which essentially comprises the following components: a first reservoir 3 for a first spreading material (for example, salt), a second reservoir 4 for a second spreading material (for example brine), a spreading plate 5 and a feeder 6, to supply the spreading material from the storage containers to the spreading plate 5.

Anhand der Fig. 2 und Fig. 3A-3D wird im Folgenden der Streuteller 5 näher beschrieben. Der Streuteller ist um eine Drehachse 7 rotierend antreibbar und weist auf seiner Streutelleroberfläche radial verlaufende Wurfschaufeln 8 auf, die den Streuteller zwischen sich in Segmente 9 unterteilen.Based on Fig. 2 and Fig. 3A-3D the spreading plate 5 will be described in more detail below. The scattering plate is rotatably drivable about a rotation axis 7 and has on its spreading plate surface radially extending throwing blades 8, which divide the spreading plate between them into segments 9.

Zumindest die radial äußeren Bereiche 5a der Streutelleroberfläche benachbarter Segmente weisen unterschiedlichen Neigungen auf. Die Neigungswinkel der Streutelleroberflächen gegenüber einer Senkrechten zur Drehachse, liegen im Bereich von 0° < β ≤ 30°, vorzugsweise 0° < β ≤ 20°. Im dargestellten Ausführungsbeispiel sind die radial äußeren Bereiche 5a der Streutelleroberflächen gegenüber einem inneren Bereich 10 des Streutellers um die Winkel β1, β2, β3 bzw. β4 aufgekantet, wobei β1 < β2 < β3 < β4.At least the radially outer regions 5a of the spreading plate surface of adjacent segments have different inclinations. The inclination angles of the scattering plate surfaces with respect to a perpendicular to the axis of rotation are in the range of 0 ° <β ≤ 30 °, preferably 0 ° <β ≤ 20 °. In the illustrated embodiment, the radially outer portions 5a of the spreading plate surfaces against an inner portion 10 of the spreading disc are the angles β 1, β 2, β 3 or β upstands 4, wherein β 1 <β 2 <β 3 <β. 4

Die Wurfschaufeln 8 sind hier geradlinig ausgebildet und mit den radial innen liegenden Enden mit gleichem radialen Abstand von der Drehachse 7 angeordnet. Auch die radial außen liegenden Enden der Wurfschaufeln 8 sind mit gleichem radialen Abstand zur Drehachse angeordnet, sodass der Streuteller in der Draufsicht kreisförmig ausgebildet ist.The throwing blades 8 are formed here in a straight line and arranged with the radially inner ends with the same radial distance from the axis of rotation 7. The radially outer ends of the throwing blades 8 are arranged at the same radial distance from the axis of rotation, so that the scattering plate is circular in plan view.

Im dargestellten Ausführungsbeispiel weisen die Segmente 9, d.h. der Bereich des Streutellers zwischen den Wurfschaufeln 8, einen radial inneren Bereich 10 auf, der im Wesentlichen quer zur Drehachse 7 ausgebildet ist und einen aufgekanteten Bereich. Wenigstens 50%, vorzugsweise 80 bis 100% der radialen Erstreckung der Segmente sollte gegenüber dem sich quer zur Drehachse erstreckenden inneren Bereich 10 geneigt ausgebildet sein.In the illustrated embodiment, the segments 9, ie the area of the spreading plate between the throwing blades 8, a radially inner portion 10 which is formed substantially transversely to the axis of rotation 7 and a aufgekanteten area. At least 50%, preferably 80 to 100%, of the radial extent of the segments should be inclined relative to the inner region 10 extending transversely to the axis of rotation.

Zur Erzielung einer möglichst gleichmäßigen Streugutverteilung über die Streubreite sind benachbarte Segmente mit unterschiedlichen Neigungen ausgebildet.To achieve the most uniform spreading material distribution over the spreading width adjacent segments are formed with different inclinations.

Der Streuteller kann dabei in mehreren Gruppen von jeweils wenigstens 2, vorzugsweise 3 bis 5 Wurfschaufeln mit zugehörigen Segmenten unterteilt sein.The scattering plate can be divided into several groups of at least 2, preferably 3 to 5 throwing blades with associated segments.

Im Ausführungsbeispiel gemäß Fig. 2 sind beispielsweise drei Gruppen mit jeweils vier Segmenten 9 vorgesehen, wobei die aufeinander folgenden Segmente einer Gruppe - in Umfangsrichtung gesehen, mit immer größer werdendem Winkel (β1, β2, β3, β4) aufgekantet sind. Nach dem Segment mit dem Aufkantungswinkel β4 folgt dann wieder ein Segment mit dem Aufkantungswinkel β1 und so weiter.In the embodiment according to Fig. 2 For example, three groups each with four segments 9 are provided, wherein the successive segments of a group - seen in the circumferential direction, with an ever-increasing angle (β 1 , β 2 , β 3 , β 4 ) are folded up. After the segment with the Aufkantungswinkel β 4 then again follows a segment with the Aufkantungswinkel β 1 and so on.

Anstatt innerhalb einer Gruppe den Aufkantungswinkel in Umfangsrichtung immer größer werden zu lassen, wäre es aber auch denkbar, abwechselnd den Winkel zu vergrößern und dann wieder zu verkleinern. So könnte in Umfangsrichtung 11 beispielsweise zunächst ein Segment mit dem Aufkantungswinkel β1, dann ein Segment mit dem Aufkantungswinkel β3, anschließend ein Segment mit dem Aufkantungswinkel β2 und schließlich ein Segment mit dem Aufkantungswinkel β4 angeordnet werden. Die beiden darauf folgenden Gruppen mit jeweils vier Segmenten könnten dann wieder in der gleichen Art und Weise aufgebaut werden. Durch die unterschiedlichen Neigungen der Streutelleroberflächen benachbarter Segmente ergeben sich für das dort befindliche Streugut unterschiedliche Radialbeschleunigungen am Ende des Streutellers, wodurch unterschiedliche Wurfweiten erzielt werden.Instead, within a group, the Aufkantungswinkel in the circumferential direction are getting bigger, but it would also be conceivable to alternately increase the angle and then reduce again. Thus, in the circumferential direction 11, for example, first a segment with the Aufkantungswinkel β 1 , then a segment with the Aufkantungswinkel β 3 , then a segment with the Aufkantungswinkel β 2 and finally a segment with the Aufkantungswinkel β 4 are arranged. The next two groups of four segments each could then be rebuilt in the same way. Due to the different inclinations of the spreading plate surfaces of adjacent segments, there are different radial accelerations at the end of the spreading plate for the spreading material located there, as a result of which different casting distances are achieved.

Bei den der Erfindung zugrunde liegenden Versuchen hat sich gezeigt, dass mit einem derartigen Streuteller eine hervorragende Streugutverteilung über die Streubreite erreicht werden kann. Damit das Streugut die Wurfschaufeln erst an deren radial äußeren Enden verlässt, können die Wurfschaufeln 8 in ihrem oberen Bereich schaufelartig umgebogen sein, wie das aus der Zeichnung hervorgeht.In the experiments on which the invention is based, it has been shown that with such a spreading plate, an excellent spreading material distribution over the spreading width can be achieved. So that the grit leaves the throwing blades only at the radially outer ends, the throwing blades 8 can be bent like a shovel in its upper region, as can be seen from the drawing.

In Fig. 4 ist ein zweites Ausführungsbeispiel eines Streutellers 5' dargestellt, der wiederum auf seiner Streutelleroberfläche radial verlaufende Wurfschaufeln 8' vorsieht, die den Streuteller zwischen sich in Segmente 9'a, 9'b, 9'c, 9"a, 9"b und 9"c unterteilen.In Fig. 4 is a second embodiment of a spreading plate 5 'is shown, which in turn on its spreading disc surface radially extending throwing blades 8' provides that the scattering plate between them in segments 9'a, 9'b, 9'c, 9 "a, 9" b and 9 "c subdivide.

Während die einzelnen Segmente beim ersten Ausführungsbeispiel gleichgroß ausgebildet wurden, weisen die Segmente einer Gruppe beim Ausführungsbeispiel gemäß Fig. 4 unterschiedliche Größen auf. Im dargestellten Ausführungsbeispiel sind zwei Gruppen mit jeweils drei Segmenten 9'a, 9'b, 9'c bzw. 9"a, 9"b, 9"c dargestellt.While the individual segments have been made the same size in the first embodiment, the segments of a group in the embodiment according to Fig. 4 different sizes. In the illustrated embodiment, two groups each having three segments 9'a, 9'b, 9'c and 9 "a, 9" b, 9 "c are shown.

Neben der unterschiedlichen Segmentgröße sind auch hier zumindest bei einigen, vorzugsweise bei allen benachbarten Segmenten ein Teil der Streutelleroberfläche mit unterschiedlichen Neigungen gegenüber der Drehachse ausgebildet.In addition to the different segment size, a part of the spreading plate surface with different inclinations with respect to the axis of rotation are also formed here at least in some, preferably in all adjacent segments.

Bei den der Erfindung zugrunde liegende Versuchen hat es sich als vorteilhaft erwiesen, wenn die Größe des Segments mit der Stärke der Neigung so korrespondiert, dass das kleinste Segment 9'a die kleinste Neigung (beispielsweise gemäß Fig. 3a), das mittelgroße Segment 9'b eine mittlere Neigung (beispielsweise gemäß Fig. 3b) und das große Segment 9'c eine große Neigung (beispielsweise gemäß Fig. 3c) aufweist.In the experiments on which the invention is based, it has proved to be advantageous if the size of the segment corresponds to the magnitude of the inclination such that the smallest segment 9'a has the smallest inclination (for example in accordance with FIG Fig. 3a ), the middle-sized segment 9'b has an average inclination (for example according to FIG Fig. 3b ) and the large segment 9'c has a large inclination (for example according to FIG Fig. 3c ) having.

Bei einer solchen Ausgestaltung ergibt sich das in Fig. 4 dargestellte Streubild, wobei selbstverständlich in jedem Segment dasselbe Streugut enthalten ist. Lediglich zur Darstellung des Streubildes wurden für das Streugut in den einzelnen Segmenten einer Gruppe unterschiedliche Symbole (Quadrat, Dreieck, Kreis) verwendet.In such an embodiment, the results in Fig. 4 shown spreading pattern, which of course in each segment the same grit is included. Only To represent the scattering pattern, different symbols (square, triangle, circle) were used for the spreading material in the individual segments of a group.

Anhand des Streubildes lässt es sich erkennen, dass der Winkel der Aufkantung und die Größe des Segmentes einen unmittelbaren Einfluss auf die erzielbare Streubreite B haben. Bei einem stärker aufgekanteten Segment verzögert sich der Austrag des Streugutes, sodass dieses eine stärkere Zentrifugalkraft erfährt und dadurch dann weiter ausgeworfen werden kann. Durch eine gezielte Abstimmung von Segmentgröße und Neigungswinkel der Streutelleroberflächen benachbarte Segmente kann eine gezielte Streubreite eingestellt und dabei ein gleichmäßiges Streubild erzielt werden.On the basis of the scattering pattern, it can be seen that the angle of the upstand and the size of the segment have a direct influence on the achievable spread B. With a more upturned segment, the discharge of the scattering material is delayed, so that it experiences a stronger centrifugal force and thus can be further ejected. By a specific vote of segment size and angle of inclination of the spreading plate surfaces adjacent segments can be set a targeted spread and thereby a uniform spreading pattern can be achieved.

Für unterschiedliche Streubreiten können daher zweckmäßigerweise unterschiedliche Streuteller vorgesehen werden.Therefore, for different spreading widths, it is expedient to provide different spreading discs.

Claims (13)

  1. A spreading disc (5) for a winter service gritting apparatus (1), having a spreading disc surface which is drivable in rotation about a rotation axis (7) and providing on the spreading disc surface radially extending casting vanes (8) which divide the spreading disc between them into segments (9), at least the radially outer regions of the spreading disc surfaces (5a) of adjacent segments (9) being inclined with respect to a perpendicular to the rotation axis, characterised in that those regions are inclined at differing angles (β1, β2, β3, β4) and the angles at which at least the mentioned radially outer regions of the spreading disc surfaces of adjacent segments are inclined with respect to the perpendicular to the rotation axis lie in the range of 0° < β ≤ 30°, preferably 0° < β ≤ 20°.
  2. A spreading disc according to claim 1, characterised in that at least some and preferably all adjacent segments (9'a, 9'b, 9'c; 9"a, 9"b, 9"c) are of differing sizes.
  3. A spreading disc according to claim 1, characterised in that at least 50%, preferably from 80% to 100%, of the radial extent of the spreading disc surface of the segments (9) is configured to be inclined with respect to an inner region of the spreading disc (5).
  4. A spreading disc according to claim 1, characterised in that at least the radially outer regions of the spreading disc surfaces of adjacent segments are set on edge relative to an inner region (10) of the spreading disc.
  5. A spreading disc according to claim 1, characterised in that the casting vanes (8) are of a straight-line configuration.
  6. A spreading disc according to claim 1, characterised in that the spreading disc surface is of a circular configuration in its plan view.
  7. A spreading disc according to claim 1, characterised in that the radially inside ends of the casting vanes (8) are disposed at the same radial distance from the rotation axis (7).
  8. A spreading disc according to claim 1, characterised in that the radially outside ends of the casting vanes (8) are disposed at the same radial distance from the rotation axis (7).
  9. A spreading disc according to claim 1, characterised in that the spreading disc surface has an inner region (10) which extends transversely to the rotation axis (7).
  10. A spreading disc according to claim 1, characterised in that the spreading disc (5) is divided into a plurality of groups each of at least 2 and preferably from 3 to 5 casting vanes (8) which are of an identical construction, the inclination (β) of the spreading disc surface of adjacent segments (9) continuously increasing or decreasing within a group.
  11. A spreading disc according to claim 1, characterised in that - viewed in the peripheral direction (11) of the spreading disc (5) - the inclination of the spreading disc surface of adjacent segments (9) is configured to be alternately greater or less than the preceding inclination.
  12. An automatic gritting device (2) having a spreading disc (5) according to one or more of the preceding claims, at least one supply vessel (3, 4) for grit, and a feed device (6) for feeding the grit from the supply vessel to the spreading disc (5).
  13. A winter service gritting apparatus (1) having an automatic gritting device (2) according to claim 12.
EP20080159941 2007-07-09 2008-07-08 Spinnerdisc for Winterservice-Spreading-Apparatus Active EP2014834B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007031880A DE102007031880A1 (en) 2007-07-09 2007-07-09 Spreading plate for a winter service spreader

Publications (3)

Publication Number Publication Date
EP2014834A2 EP2014834A2 (en) 2009-01-14
EP2014834A3 EP2014834A3 (en) 2010-11-10
EP2014834B1 true EP2014834B1 (en) 2013-05-08

Family

ID=39744962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20080159941 Active EP2014834B1 (en) 2007-07-09 2008-07-08 Spinnerdisc for Winterservice-Spreading-Apparatus

Country Status (2)

Country Link
EP (1) EP2014834B1 (en)
DE (1) DE102007031880A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015119464A1 (en) 2015-11-11 2017-05-11 Kugelmann Maschinenbau E.K. Dispensing device for a liquid
CN110754179A (en) * 2018-07-26 2020-02-07 衢州职业技术学院 Seed metering device for seeder

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1406535A (en) * 1964-06-01 1965-07-23 Lorraine Houilleres Further development of centrifugal spraying equipment
DE2805879A1 (en) * 1978-02-13 1979-08-16 Amazonen Werke Dreyer H PROCEDURE FOR THE USE OF SPREADERS
DE2818227A1 (en) * 1978-04-26 1979-11-08 Amazonen Werke Dreyer H Twin outlet fertiliser spinner - has lockable discs movable w.r.t. supply hopper and mounted on drive unit with hinged support frame
DE2949224C2 (en) * 1979-12-07 1983-05-11 Amazonen-Werke H. Dreyer Gmbh & Co Kg, 4507 Hasbergen Centrifugal spreader
DE3050355C2 (en) * 1980-09-19 1984-03-29 Willy 7715 Bräunlingen Küpper Spreading device for granulated and liquid thawing substances
DE3544060A1 (en) * 1985-12-13 1987-06-19 Willy Kuepper Spreading device with liquid supply for spreading moistened granulates
DE4039795C1 (en) * 1990-12-13 1992-03-12 Kuepper-Weisser Gmbh, 7715 Braeunlingen, De
DE10043462C2 (en) * 2000-09-04 2003-05-28 Kuepper Weisser Gmbh Winter service spreader and spreading disc for winter service spreader
DE10043463C2 (en) * 2000-09-04 2003-12-18 Kuepper Weisser Gmbh Winter service spreader and spreading disc for winter service spreader
EP1208733A1 (en) * 2000-11-24 2002-05-29 A.P. Laursen A/S An apparatus for spreading flowable material
DE20117882U1 (en) * 2001-11-06 2002-02-14 Pfau Otto spreading plate

Also Published As

Publication number Publication date
EP2014834A3 (en) 2010-11-10
EP2014834A2 (en) 2009-01-14
DE102007031880A1 (en) 2009-01-15

Similar Documents

Publication Publication Date Title
DE2036675B2 (en) Snow plow proof road marking
DE202005009859U1 (en) Knife carrier for crushers
EP3061342A1 (en) Vertical mixing screw with magnet for a feed mixing wagon
EP3628411B1 (en) Screen star for a screening device
DE19649764C2 (en) Device for shredding material, in particular waste paper
DE2624118C3 (en) Blade for rotating rasp devices for removing tire treads
AT390543B (en) TINE OF A TILLAGE MACHINE
EP2014834B1 (en) Spinnerdisc for Winterservice-Spreading-Apparatus
EP0787511A1 (en) Fixing parts, especially basic plate, for holding bindings on snowboards or the like
EP3929358A1 (en) Salt spreading unit
EP0429864B2 (en) Centrifugal fertilizer spreader
EP2718505A1 (en) Spreader device
DE69010495T2 (en) Rotating disc for a disc plow.
EP3750390B1 (en) Conveyor for a liquid manure distributor
DE2908011C2 (en) Snow removal device
DE102005046043B4 (en) Mounting arrangement of a knife blade on a mixing screw of a feed mixer wagon
CH630225A5 (en) Rotary harrow.
DE2718841B2 (en) Machine for the pneumatic discharge of granular material Amazonen-Werke H. Dreyer GmbH &amp; Co KG, 4507 Hasbergen
DE3500273C2 (en) Soil cultivation machine, in particular rotary harrow
EP3318676A1 (en) Spinner disc and spinner disc module
EP4134488B1 (en) Milling wheel
EP0865727A2 (en) Cutterblade for a conveyor-mixer in a fodder-mixing trailer
EP3047901B1 (en) Mixer device
DE1940722A1 (en) Rotor for thin-film treatment apparatus
EP3168369B1 (en) Extraction device for a liquid

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20110428

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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 HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

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: AT

Ref legal event code: REF

Ref document number: 611178

Country of ref document: AT

Kind code of ref document: T

Effective date: 20130515

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: RIEDERER HASLER AND PARTNER PATENTANWAELTE AG, LI

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502008009863

Country of ref document: DE

Effective date: 20130704

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20130508

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130508

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: 20130508

Ref country code: ES

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: 20130819

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: 20130508

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: 20130508

Ref country code: NO

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: 20130808

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: 20130809

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: 20130908

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: 20130909

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

Ref country code: HR

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: 20130508

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: 20130808

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: 20130508

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: 20130508

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

Ref country code: LV

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: 20130508

BERE Be: lapsed

Owner name: KUGELMANN, SIEGFRIED

Effective date: 20130731

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

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: 20130508

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: 20130508

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: 20130508

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: 20130508

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20130508

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: 20130508

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: 20130508

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: 20140211

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

Effective date: 20130808

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20140331

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: 20130731

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502008009863

Country of ref document: DE

Effective date: 20140211

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: 20130731

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: 20130808

Ref country code: IE

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

Effective date: 20130708

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

Ref country code: MT

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: 20130508

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: 20130508

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

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; INVALID AB INITIO

Effective date: 20080708

Ref country code: LU

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

Effective date: 20130708

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

Ref country code: IT

Payment date: 20230719

Year of fee payment: 16

Ref country code: CH

Payment date: 20230801

Year of fee payment: 16

Ref country code: AT

Payment date: 20230720

Year of fee payment: 16

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

Ref country code: DE

Payment date: 20230726

Year of fee payment: 16