EP3713806B1 - Plaque d'extrémité pour tête d'attelage de véhicule ferroviaire et tête d'attelage de véhicule ferroviaire - Google Patents

Plaque d'extrémité pour tête d'attelage de véhicule ferroviaire et tête d'attelage de véhicule ferroviaire Download PDF

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Publication number
EP3713806B1
EP3713806B1 EP18803609.9A EP18803609A EP3713806B1 EP 3713806 B1 EP3713806 B1 EP 3713806B1 EP 18803609 A EP18803609 A EP 18803609A EP 3713806 B1 EP3713806 B1 EP 3713806B1
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EP
European Patent Office
Prior art keywords
end plate
coupling
open
edge
contact face
Prior art date
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Application number
EP18803609.9A
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German (de)
English (en)
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EP3713806A1 (fr
Inventor
Andreas Schwinning
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.)
Voith Patent GmbH
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Voith Patent GmbH
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Publication date
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Application filed by Voith Patent GmbH filed Critical Voith Patent GmbH
Priority to PL18803609T priority Critical patent/PL3713806T3/pl
Priority to EP22157954.3A priority patent/EP4035967A1/fr
Publication of EP3713806A1 publication Critical patent/EP3713806A1/fr
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Publication of EP3713806B1 publication Critical patent/EP3713806B1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G3/00—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements
    • B61G3/16—Couplings comprising mating parts of similar shape or form which can be coupled without the use of any additional element or elements with coupling heads rigidly connected by rotatable hook plates or discs and balancing links, the coupling members forming a parallelogram, e.g. "Scharfenberg" type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G7/00—Details or accessories

Definitions

  • the present invention relates to an end plate for a rail vehicle coupling head and a rail vehicle coupling head with such an end plate.
  • the end plates of rail vehicle coupling heads have vertical end-face contact surfaces which enclose the coupling elements and which transmit the compressive forces between the end plates of rail vehicle coupling heads coupled to one another. If accumulations of snow or ice now adhere to these contact surfaces, the end plates and thus the coupling heads cannot be pushed against one another far enough to couple the coupling elements of both rail vehicle coupling heads to one another. Conventionally, therefore, corresponding accumulations of ice and snow have to be removed manually from the end plates.
  • an electric heater for the end plates can also be provided in order to defrost the accumulations of ice and snow.
  • the pamphlets EP 1 805 073 B1 , EP 1 632 414 B1 and EP 1 293 409 A1 disclose such rail vehicle coupling heads with electrically heatable end plates.
  • no electrical energy stands for corresponding electrical Heating devices are available, so that in practice manual removal of ice and snow accumulations is still required.
  • WO 2015/036482 A1 discloses a coupling head of a central buffer coupling with a coupling head housing and with a front plate that closes off the front end of the coupling head housing and is detachably connected to the coupling head housing, the coupling head housing having a first connection area for coupling to the front plate and a second connection area for establishing the connection with a coupling rod and the coupling head housing in one piece is designed as a forged component, with the first connection area on the coupling head housing being formed by at least two contact surfaces arranged separately from one another for at least indirect support on partial surfaces of the front plate and the coupling head housing being connected to the front plate in the first connection area via non-positive connections.
  • the present invention is based on the object of specifying an end plate for a rail vehicle coupling head in which the need for manual removal of snow or ice accumulations is at least largely avoided even if no electrical heating is provided.
  • An end plate for a rail vehicle coupling head has coupling elements comprising a coupling projection projecting in a front direction from the end plate and a coupling opening for receiving a coupling projection of mating coupling elements of a compatible end plate.
  • the front direction is from a front side of the Face plate means the direction in which the face plate can be moved relative to a mating coupler in order to couple two rail vehicle coupling heads together.
  • the coupling projection can, for example, comprise or be formed by a so-called coupling cone, also known as a standard coupling cone.
  • the coupling opening is in particular circular and cylindrical or funnel-shaped in cross-section in order to be able to accommodate a corresponding coupling cone in opposite directions.
  • the end plate has a front contact surface, ie a contact surface pointing in the direction of the front, in order to be able to absorb compressive forces when coupling the compatible end plate of another rail vehicle coupling head. With such a coupling, the front contact surfaces of both front plates are in contact with one another.
  • the end contact surface of the end plate is provided with at least one recess which is positioned outside of the coupling elements and is open at the edge at least in sections. I.e. a single contiguous recess can be provided which is open at the edge at least in sections, or two or more individual recesses which are open at the edge at least in sections can be provided.
  • the open-edged recess has the effect that during the coupling process, when the two end plates of rail vehicle coupling heads to be coupled together move towards one another, snow trapped between the end plates and scraped off or compressed during the coupling process can escape into the at least one recess and via its open-edged section and thus out of the Engagement area of the two end plates or the coupling elements comes out.
  • the other components such as the coupling elements can be retained without modification, which at the same time makes it possible to provide the invention for different types of couplings and coupling head variants, regardless of whether the Rail vehicle coupling head is provided, for example, with a detachable end plate, a compressed air coupling is provided and / or a so-called gripper is provided. Rather, the recess according to the invention can be used with each of the coupling heads or coupling head variants mentioned.
  • the end-face contact surface comprises a plurality of contact surface segments or is formed by them, which are positioned distributed on the front side of the end plate and are raised relative to adjacent areas, ie protrude relative to them.
  • Each contact surface segment has, in particular, a flat front surface which is designed to be able to bear against the end plate of a counter-coupling or a rail vehicle coupling head to be coupled.
  • the contact surface segments are in particular positioned and designed in such a way that they provide spatially separated local force application areas for absorbing compressive forces during the coupling process.
  • the number and size of the contact surface segments can be selected in such a way that the total contact surface is reduced to a necessary minimum in order to be able to reliably transmit the compressive forces occurring during operation.
  • the contact surface segments together can withstand a compressive force of at least 2,000 kN (kilonewtons) or more. With such comparatively small contact surface segments, the risk of accumulations of snow or ice adhering to these contact surface segments is minimized.
  • the arrangement of the contact surface segments and their geometric design is essentially dependent on the basic geometry of the end plate and the arrangement of the coupling elements.
  • the contact surface segments are arranged at a distance from the coupling elements, forming at least a partial area of a recess that is open at the edge at least in sections. This extends into the area of the outer circumference of the end plate, preferably directly up to the outer circumference of the end plate.
  • the face plate is preferably characterized by a substantially rectangular base area.
  • this can be expanded to include surface areas for arranging the gripper or other slide-in surfaces for the coupling process.
  • the coupling elements are arranged centrally.
  • the contact surface segments are then arranged in this case preferably in the four corner areas outside of the coupling elements, with the contact surface segments either ending flush with the outer circumference of the end plate or being provided in the outer edge area or in the area of the outer circumference on the end face. In the latter case, these form additional sliding surfaces for snow, etc., with the surface areas pointing in the direction of the outer circumference of the front plate.
  • the end plate according to the invention preferably has a multiplicity of open-edged cutouts positioned outside of the coupling elements.
  • the individual open-edged cutouts or sections of an open-edged cutout particularly preferably extend around the coupling elements and between the individual contact surface segments to the outer circumference of the end plate. These preferably end flush with the outer circumference.
  • the at least one open-edged recess can comprise at least one bevel which is arranged in an edge region of the recess and whose surface faces in the direction of the edge.
  • the face plate has a chamfer in the area of the slope, that is to say a surface on the front side which is increasingly set back towards the edge.
  • the recess can also be provided with bevels, which are directed towards the center, i.e. in particular along the outer circumference between two contact surface segments, starting from these towards the center.
  • bevels of the recesses can be designed to run in particular in the edge area, i.e. the area of the outer circumference opposite the contact surface and/or the base area of the recess in the direction from the coupling elements to the edge area (in the installed position, height direction) and/or transversely thereto (in the installed position, width direction). .
  • the chamfers and bevels can vary depending on the manufacturing process.
  • the bevel preferably has an angle of at least 10° to the contact surface and/or a base surface of the recess.
  • peripheral surface areas of the contact surface segments that define the recess which are arranged running perpendicularly or at an angle to the actual contact surface opposite the base surface of the recess and also define the contour of the recess, are designed to run in the direction of the outer circumference that the individual open-edged recess towards the outer circumference of the end plate is characterized along this circumferential surface either by the same width or a constant cross-sectional geometry in a plane parallel to the contact surface between two adjacent contact surface segments or preferably with changing cross-sectional geometry, in particular expansion in direction Outer periphery of the end plate is formed.
  • the at least one recess which is open at the edge at least in sections, can vary in terms of the geometric dimensions in the individual directions over their extension over the end face of the end plate.
  • the recess can be designed with the same height/depth or variable height/depth viewed in the longitudinal direction of the end plate, and its configuration can also vary in the direction of the outer circumference of the end plate.
  • the at least one open-edged recess comprises at least one open-edged circumferential groove which partially or completely encloses the coupling projection over its circumference at least in sections, in particular exclusively in sections.
  • individual contact surface segments forming the front contact surface are provided, their surface or front surface is preferably smaller than the surface or front surface of the at least one recess which is open at the edge at least in sections.
  • the front surface of the at least one open-edged recess is also referred to here as the base surface.
  • the front contact surface has at least three or four raised contact surface segments distributed along the outer circumference of the contact surface. If the contact surface has an at least essentially square or rectangular shape, a raised contact surface segment can be provided for each corner, for example.
  • the front plate has a gripper that protrudes from the front plate in the front direction and is at least partially or completely surrounded by a recess that is open at the edge at least in sections over its circumference, whereby openings or breakthroughs can also be provided depending on the embodiment which compressed snow can avoid.
  • this open-edged recess enclosing the gripper is formed by a flat surface that is set back parallel to or at an angle to the contact surface.
  • the gripper extends from such a surface.
  • the gripper can be formed, for example, by a curved or angled rod, or can include one that protrudes in particular from the surface.
  • the at least one open-edged recess preferably has a base area which is set back by at least 2.5 mm or at least 5 mm in relation to the contact area.
  • the base area can run partially or completely parallel to the contact area, but in particular can also have the bevel(s) mentioned at least in one or some sections.
  • this clear set-back of the base area in relation to the contact surface forms a sufficient space into which snow and ice can be displaced without impairing the coupling process or the coupled state.
  • the end plate according to the invention is in particular free of electrical heating.
  • the invention can also be used in combination with electrically heated end plates.
  • a rail vehicle coupling head according to the invention has a coupling head housing and an end plate according to the invention which is detachably or non-detachably connected to the coupling head housing.
  • the rail vehicle coupling head can be designed, for example, as a freight coupling or as part of a freight coupling.
  • the invention is particularly applicable to center buffer couplers.
  • the application can be for passenger and cargo applications.
  • FIG. 1 and 2 1 shows an end plate 10 which can either be formed in one piece with a coupling head housing 11 or can be detachably connected to such a coupling head housing.
  • a corresponding coupling head housing 11 is shown schematically in dashed lines in FIG figure 2 shown.
  • the end plate 10 and the coupling head housing 11 together form a rail vehicle coupling head 13 or are at least components of the same.
  • a coordinate system is applied to the end plate 10 by way of example.
  • the X-direction corresponds to the longitudinal direction of the rail vehicle.
  • the Y direction describes the width direction, ie the direction perpendicular to the longitudinal direction.
  • the Z-direction describes the height direction.
  • the end plate 10 has an end face 14 directed away from the coupling head housing 11 for cooperation with a counter-rail vehicle coupling head, not shown. On the rear side directed away from the end face 14, the end plate 10 is, depending on the connection to the coupling head housing 11, either designed in one piece with the latter or designed and connected to cooperate with it.
  • the end plate 10 has an end contact surface 7 for cooperation with a contact surface of a counter-rail vehicle coupling head, in particular for absorbing compressive forces when coupling the compatible end plate of a counter-rail vehicle coupling head.
  • the end face 14 also has corresponding coupling elements for coupling to the counter-rail vehicle coupling.
  • a coupling projection 1 protrudes from the end plate 10 in the front direction, which is designed here as a coupling cone.
  • a coupling opening 6 is positioned to the side, which can accommodate a corresponding coupling projection of a counter-rail vehicle coupling.
  • the end contact surface 7 is provided with at least one recess 3 which is positioned outside the coupling elements and is open at the edge at least in sections.
  • four contact surface segments 5 are provided, one contact surface segment 5 in the area of each corner of the end plate 10 when the latter is designed with a substantially rectangular base area on which the coupling elements are provided, and another contact surface segment between two contact surface segments 5 arranged in the corner areas in the width direction.
  • the design the partially open-edged recess in the edge area or in the area of the outer circumference of the end plate 10 can vary depending on the manufacturing process. If the end plate 10 has a particularly long extension between the corners, an additional contact surface segment 5 can be provided between the corners, for example in the axial center, as in the figure 1 is shown.
  • This contact surface segment 5 has a ring shape here.
  • a gripper 8 protruding from the end plate 10 in the front direction, which works together with a corresponding gripper of the counter-coupling in order to center the two end plates or rail vehicle coupling heads with one another during the coupling process.
  • the front contact surface 7 is provided outside the coupling elements formed here by the coupling projection 1 , the coupling opening 6 and the gripper 7 with a recess 3 which is open at the edge in sections.
  • This open-edged recess 3 can be viewed as a single connected open-edged recess or as a multiplicity of at least partially open-edged, preferably completely open-edged recesses 3 provided next to one another.
  • the contact surface 7 is segmented into the individual contact surface segments 5 by the open-edged recess 3 . This results in a space between the contact surface segments 5, into which snow can penetrate during coupling.
  • the at least one at least partially open-edged recess 3 positioned outside the coupling elements extends from the area of the outer circumference, preferably directly from the outer circumference 15 of the basic geometry describing the end plate 10 in the direction of the coupling elements, in particular at a distance from them. If this is essentially rectangular, the recesses in the respective corner regions extend to the outer circumference 15, with this dividing the contact surface 7 into segments which are arranged spatially separated from one another and form local force introduction regions.
  • bevels 4 are provided in edge areas, ie in the area of the outer circumference 15 of the end plate 10 or the open-edged recess 3 .
  • edge areas ie in the area of the outer circumference 15 of the end plate 10 or the open-edged recess 3 .
  • at the upper end of the end plate 10 there are two bevels 4 provided, and another at the open-edged recess 3 or the part of the open-edged recess 3, from which / which the gripper 8 protrudes.
  • a coupling funnel is pushed onto the coupling projection 1 .
  • Snow adhering to the coupling projection 1 can thus be pressed in the direction of the front side into the area of the end plate 10 surrounding the coupling projection 1 . So that this snow can escape, the coupling projection 1 is surrounded by a peripheral groove 2, which in turn is open at the edge, here in the areas of the slope 4 and in the vertical direction between the contact surface segments 5 on the lateral outer edge next to the coupling head 1.
  • This peripheral groove 2 is also from the illustration in the figure 2 apparent.
  • screw openings 12 are provided in particular, which are provided here in the contact surface segments 5 . In order to avoid snow being trapped in these screw openings 12, these could also be designed with open edges.
  • the open-edged recess 3 which encloses the gripper 8 , is formed by a surface 9 set back in relation to other open-edged recesses 3 or other areas of the open-edged recess 3 .
  • This set-back surface 9 can be aligned, for example, at an angle to the contact surface 7 or the other areas of the open-edged recesses 3 .
  • parallel alignment is also possible.
  • the surface 9 set back here can be provided in a common plane with the other areas of the open-edged recesses 3 in order to form a common base surface of the open-edged recesses 3 . Additional openings in the area of the gripper are also possible. Compressed snow can also be pushed through here and fall out backwards.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Plates (AREA)

Claims (15)

  1. Plaque frontale (10) pour une tête d'attelage de véhicule ferroviaire
    dotée d'éléments d'attelage, comportant une saillie d'attelage (1) qui dépasse de la plaque frontale (10) dans une direction avant, et une ouverture d'attelage (6) servant à la réception d'une saillie d'attelage d'éléments d'attelage diamétralement opposés d'une plaque frontale compatible,
    la plaque frontale (10) comprenant une surface de contact (7) frontale servant à la réception de forces de compression lors de l'attelage de la plaque frontale compatible, et la surface de contact (7) frontale étant dotée d'au moins un évidement (3) au moins partiellement à bord ouvert positionné à l'extérieur des éléments d'attelage, caractérisée en ce que
    la surface de contact (7) frontale comporte une pluralité de segments de surface de contact (5) ou est formée par ceux-ci, lesquels sont positionnés de manière répartie sur le côté avant de la plaque frontale (10) et sont en relief par rapport à des régions adjacentes.
  2. Plaque frontale (10) selon la revendication 1, caractérisée en ce que la surface de contact (7) frontale comporte une pluralité d'évidements (3) à bord ouvert positionnés à l'extérieur des éléments d'attelage.
  3. Plaque frontale (10) selon l'une des revendications 1 ou 2, caractérisée en ce que les évidements à bord ouvert individuels ou les parties d'un évidement à bord ouvert s'étendent autour des éléments d'attelage et entre les segments de surface de contact individuels vers la périphérie extérieure de la plaque frontale, de préférence se terminent en affleurement avec la périphérie extérieure de la plaque frontale.
  4. Plaque frontale (10) selon l'une des revendications 1 à 3, caractérisée en ce que l'au moins un évidement (3) à bord ouvert comprend au moins un biseau (4) disposé dans une région de bord de l'évidement (3), biseau dont la surface est tournée en direction du bord et/ou vers le centre.
  5. Plaque frontale (10) selon la revendication 4, caractérisée en ce que le biseau (4) présente un angle d'au moins 10° par rapport à la surface de contact (7).
  6. Plaque frontale (10) selon l'une des revendications 1 à 5, caractérisée en ce que l'au moins un évidement (3) à bord ouvert comprend au moins une rainure périphérique (2) au moins partiellement à bord ouvert entourant partiellement ou complètement la saillie d'attelage (1) sur sa périphérie.
  7. Plaque frontale (10) selon l'une des revendications 1 à 6, caractérisée en ce que la surface de contact (7) frontale comporte au moins trois ou quatre segments de surface de contact (5) en relief disposés de manière répartie le long de la périphérie extérieure de la surface de contact (7).
  8. Plaque frontale (10) selon la revendication 7, caractérisée en ce que la surface de contact (7) présente une forme sensiblement quadrangulaire ou rectangulaire et respectivement un segment de surface de contact (5) en relief est positionnée dans la région de chaque coin.
  9. Plaque frontale (10) selon l'une des revendications 1 à 8, caractérisée en ce que les éléments d'accouplement comportent un élément de préhension (8) dépassant de la plaque frontale (10) dans la direction avant, lequel est entouré au moins partiellement sur sa périphérie par un évidement (3) à bord ouvert au moins dans certaines parties.
  10. Plaque frontale (10) selon la revendication 9, caractérisée en ce que l'évidement (3) à bord ouvert entourant l'élément de préhension (8) est formé par une surface (9) plane en retrait parallèlement ou de manière angulaire par rapport à la surface de contact (7).
  11. Plaque frontale (10) selon l'une des revendications 1 à 10, caractérisée en ce qu'au moins un évidement (3) à bord ouvert comprend une surface de base qui est en retrait d'au moins 2,5 mm ou d'au moins 5 mm par rapport à la surface de contact (7).
  12. Plaque frontale (10) selon la revendication 11, caractérisée en ce que la surface de base est parallèle à la surface de contact (7) au moins dans certaines parties.
  13. Plaque frontale (10) selon l'une des revendications 10 à 12, caractérisée en ce que l'évidement (3) à bord ouvert entourant l'élément de préhension (8) comprend des orifices, en particulier des ouvertures traversantes.
  14. Plaque frontale selon l'une des revendications 1 à 13, caractérisée en ce que la saillie d'attelage (1) comporte un cône d'attelage ou est formée par celui-ci.
  15. Tête d'attelage de véhicule ferroviaire comportant un boîtier de tête d'attelage (11) et une plaque frontale (10), raccordée de manière amovible ou non amovible au boîtier de tête d'attelage (11), selon l'une des revendications 1 à 14.
EP18803609.9A 2017-11-22 2018-11-12 Plaque d'extrémité pour tête d'attelage de véhicule ferroviaire et tête d'attelage de véhicule ferroviaire Active EP3713806B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL18803609T PL3713806T3 (pl) 2017-11-22 2018-11-12 Płyta czołowa do główki sprzęgu pojazdu szynowego i główka sprzęgu pojazdu szynowego
EP22157954.3A EP4035967A1 (fr) 2017-11-22 2018-11-12 Plaque frontale pour une tête d'accouplement de véhicule ferroviaire et tête d'accouplement de véhicule ferroviaire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017127552.5A DE102017127552A1 (de) 2017-11-22 2017-11-22 Stirnplatte für einen Schienenfahrzeugkupplungskopf und Schienenfahrzeugkupplungskopf
PCT/EP2018/080859 WO2019101552A1 (fr) 2017-11-22 2018-11-12 Plaque d'extrémité pour tête d'attelage de véhicule ferroviaire et tête d'attelage de véhicule ferroviaire

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP22157954.3A Division EP4035967A1 (fr) 2017-11-22 2018-11-12 Plaque frontale pour une tête d'accouplement de véhicule ferroviaire et tête d'accouplement de véhicule ferroviaire

Publications (2)

Publication Number Publication Date
EP3713806A1 EP3713806A1 (fr) 2020-09-30
EP3713806B1 true EP3713806B1 (fr) 2022-03-09

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ID=64316520

Family Applications (2)

Application Number Title Priority Date Filing Date
EP18803609.9A Active EP3713806B1 (fr) 2017-11-22 2018-11-12 Plaque d'extrémité pour tête d'attelage de véhicule ferroviaire et tête d'attelage de véhicule ferroviaire
EP22157954.3A Pending EP4035967A1 (fr) 2017-11-22 2018-11-12 Plaque frontale pour une tête d'accouplement de véhicule ferroviaire et tête d'accouplement de véhicule ferroviaire

Family Applications After (1)

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EP22157954.3A Pending EP4035967A1 (fr) 2017-11-22 2018-11-12 Plaque frontale pour une tête d'accouplement de véhicule ferroviaire et tête d'accouplement de véhicule ferroviaire

Country Status (6)

Country Link
EP (2) EP3713806B1 (fr)
CN (2) CN113799843A (fr)
DE (1) DE102017127552A1 (fr)
ES (1) ES2915578T3 (fr)
PL (1) PL3713806T3 (fr)
WO (1) WO2019101552A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021120546A1 (de) 2021-08-06 2023-02-09 Voith Patent Gmbh Stirnplatte für einen Schienenfahrzeugkupplungskopf und Schienenfahrzeugkupplungskopf
EP4371848A1 (fr) * 2022-11-16 2024-05-22 Dellner Couplers AB Face avant de tête d'attelage

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GB836478A (en) 1957-11-26 1960-06-01 Nat Malleable & Steel Castings Improvements in or relating to a car coupler
KR200342776Y1 (ko) 2003-11-21 2004-02-18 한갑희 철도차량용 밀착 연결기
EP1632414A1 (fr) 2004-09-06 2006-03-08 Voith Turbo Scharfenberg GmbH & Co. KG Tête d'attelage avec plaque frontale détachable, pour véhicules ferroviaires, et méthode de montage correspondante
CN102991526A (zh) 2012-12-19 2013-03-27 中国北车集团大连机车车辆有限公司 对接车钩及列车

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DE10144838A1 (de) * 2001-09-12 2003-03-27 Scharfenbergkupplung Gmbh & Co Elektrische Heizung für den Kupplungskopf einer Mittelpufferkupplung
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EP4035967A1 (fr) 2022-08-03
ES2915578T3 (es) 2022-06-23
CN111356623B (zh) 2021-09-07
CN111356623A (zh) 2020-06-30
DE102017127552A1 (de) 2019-05-23
CN113799843A (zh) 2021-12-17
EP3713806A1 (fr) 2020-09-30
WO2019101552A1 (fr) 2019-05-31
PL3713806T3 (pl) 2022-06-27

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