EP3434414B1 - Disque de traitement des matériaux et son procédé de fabrication - Google Patents

Disque de traitement des matériaux et son procédé de fabrication

Info

Publication number
EP3434414B1
EP3434414B1 EP18185545.3A EP18185545A EP3434414B1 EP 3434414 B1 EP3434414 B1 EP 3434414B1 EP 18185545 A EP18185545 A EP 18185545A EP 3434414 B1 EP3434414 B1 EP 3434414B1
Authority
EP
European Patent Office
Prior art keywords
base body
unit
material processing
grinding
layer
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
EP18185545.3A
Other languages
German (de)
English (en)
Other versions
EP3434414A1 (fr
EP3434414C0 (fr
Inventor
Tom VERSCHUEREN
Jochem GRIETENS
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.)
Klingspor AG
Original Assignee
Klingspor AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Klingspor AG filed Critical Klingspor AG
Publication of EP3434414A1 publication Critical patent/EP3434414A1/fr
Application granted granted Critical
Publication of EP3434414B1 publication Critical patent/EP3434414B1/fr
Publication of EP3434414C0 publication Critical patent/EP3434414C0/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D18/00—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for
    • B24D18/0009—Manufacture of grinding tools or other grinding devices, e.g. wheels, not otherwise provided for using moulds or presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/06—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor with inserted abrasive blocks, e.g. segmental
    • B24D7/066—Grinding blocks; their mountings or supports
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
    • B24D7/14—Zonally-graded wheels; Composite wheels comprising different abrasives

Definitions

  • the invention relates to a material processing disc for processing material surfaces and a method for producing the material processing disc.
  • Material processing discs are known in practice, comprising a base body and an abrasive arranged on the base body.
  • the base body has a central recess for direct or indirect connection to a drive shaft of a tool.
  • the material surfaces of objects to be processed can be ground or polished.
  • the removal rate of the known material processing discs is limited. Thus, coarse surface processing is not possible. Instead, a separate grinding disc is required, which is associated with high costs and additional effort.
  • Printed matter JP H11 170176 A teaches a grinding tool comprising a drive shaft on which a disc-shaped grinding wheel for coarse grinding and a ring-shaped grinding wheel for fine grinding are mounted.
  • the grinding wheel and the grinding wheel consist of grinding lamellae.
  • a flap grinding tool with a carrier body is known. Grinding flaps are arranged on the carrier body on the circumference and end faces.
  • the invention is therefore based on the object of providing an alternative material processing disc which is suitable for both fine and coarse surface processing.
  • the material processing disc for processing material surfaces comprises a base body with a central recess for connecting a drive shaft of a tool, an abrasive, and a grinding means.
  • the abrasive means is arranged on the base body, and the grinding means surrounds the base body in a ring.
  • the base body has a recess on its outer surface into which the grinding means engages.
  • the grinding means has a circumferential projection on its inner surface that corresponds to the recess in the base body and extends radially inward.
  • the material processing disc according to the invention enables both fine and coarse material processing without the need for an additional material processing disc. This reduces costs compared to the use of prior art material processing discs. The effort required for tool changes is eliminated.
  • the base body is a carrier plate made of plastic and/or comprising a mixture of resin and abrasive grain.
  • the roughing means of the material processing wheel according to the invention may have a convex outer surface, which improves the roughing performance of the roughing means.
  • the abrasive of the material processing disc according to the invention can be a flap disc, which is characterized by good grinding efficiency and a uniform grinding pattern.
  • the abrasive can also comprise abrasive lamellae, which are bonded to the base body, in particular with an adhesive resin, thus ensuring secure fixation of the abrasive to the base body.
  • the grinding agent comprises a mixture of resin and abrasive grain.
  • step (a.2.3) at least two layers S 1 , S 2 are applied to the first layer S 0 according to step (a.2.2), so that a stack of at least three layers is formed.
  • step (a.2.3) at least two layers S 1 , S 2 are applied to the first layer S 0 according to step (a.2.2), so that a stack of at least three layers is formed.
  • steps (a.2.2) and (a.2.3) layers S 0 and S 0+u are applied, each having the radius r m,n , wherein the radius r m,n of the layer S 0 to S 0+u and of the layers S no to S n is greater than the radius r m,n of the layers S 0+u+1 to S n-0-1 and n - u - o ⁇ 1, so that a recess is formed on the base body and a projection is formed on the roughing means.
  • the roughing agent may be manufactured in step (a) to include a concave outer surface, thereby improving the roughing performance.
  • step (b) the abrasive lamellae are glued or fixed to the grinding side of the base body, for example with an adhesive resin, whereby adhesive resins have particularly good adhesive properties.
  • Fig. 1 shows a material processing disc 10 according to the invention with a base body 20, an abrasive 30 and a roughing means 40.
  • the base body 20 is disc-shaped and has a central recess 21 with a radius r i for connecting a drive shaft of a tool.
  • the roughing means 40 encloses the base body 20 in a ring shape, wherein a lateral surface 22 of the base body 20 is in contact with an inner surface 41 of the roughing means 40.
  • a recess 23 is formed on the lateral surface 22 of the base body 20 and extends along the circumferential side.
  • the roughing means 40 comprises, on an inner surface 41, a projection 42 corresponding to the recess 23 of the base body 20 and has a convex outer surface 43 with respect to an object 50 to be machined, i.e., in cross-section, the outer surface 43 of the roughing means 40 is curved outwards.
  • the base body 20 and the grinding means 40 enclosing the base body 20 can comprise (n+1) layers S 0 to S n .
  • the (n+1) layers S 0 to S n each comprise a disc-shaped base body layer and a disc-shaped grinding means layer, each formed from a mixture of resin and abrasive grain.
  • the base body layers each have an inner radius r i , which corresponds to the radius of the recess 21 of the base body, and an outer radius r m,n .
  • An inner radius r m,n of the grinding means layer corresponds to the outer radius r m,n of the base body layer.
  • the outer radius of the corresponding base body layer(s) or the inner radius of the corresponding roughing center layer(s) r m , 0+u+1 to no-1 is smaller than the outer radius of the base body layer(s) or the inner radius of the roughing center layer(s) r m , 0 to 0+u and no to n of the layers S 0 to S 0+u and S no to S n .
  • the base body can be made of a suitable plastic.
  • An abrasive 30 is arranged on a side of the base body 20 facing the object 50 to be machined, or the grinding side 24.
  • the abrasive 30 comprises abrasive lamellae 31, which are bonded to the grinding side 24 of the base body 20 with an adhesive resin.
  • the material processing disk 10 has a rotation axis 11.
  • the rotation axis 11 encloses an angle SW together with a plane 52 which corresponds to the extension of the surface 51 of the object 50 to be machined.
  • a surface of the grinding wheel 10 in contact with the surface 51 of the object 50 to be machined can be changed.
  • the surface 51 can be machined with the grinding means 40. If the angle SW is large, in particular close to or equal to 90 degrees, the surface 51 to be machined is in contact with the grinding means 30.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (9)

  1. Disque de traitement de matériau pour le traitement de surfaces de matériau, le disque de traitement de matériau comprenant un corps de base (20) ayant un évidement (21) central pour la fixation à un arbre d'entraînement d'un outil, une unité de frottement (30) étant disposée sur le corps de base (20) et une unité à ébarber (40) encerclant d'une manière annulaire le corps de base (20), le corps de base (20) comprenant un évidement (23) sur son enveloppe (22), l'unité à ébarber (40) s'engageant dans l'évidement (23), et l'unité à ébarber (40) comprenant une saillie (42) circonférentielle sur sa face intérieure (41), la saillie (42) correspondant à l'évidement (23) du corps de base (20) et s'étendant vers l'intérieur dans la direction radiale.
  2. Disque de traitement de matériau selon la revendication 1, dans lequel le corps de base (20) est une plaque de support qui est fait en plastique et/ou comprend un mélange de résine et de grains abrasifs.
  3. Disque de traitement de matériau selon la revendication 1 ou la revendication 2, dans lequel l'unité à ébarber (40) a une face extérieure convexe (43).
  4. Disque de traitement de matériau selon l'une quelconque des revendications 1 à 3, dans lequel l'unité à ébarber (30) est un disque à lamelles.
  5. Disque de traitement de matériau selon l'une quelconque des revendications 1 à 4, dans lequel l'unité de frottement (30) comprend des lamelles (31) de l'unité de frottement, qui sont collées sur le corps de base (20) au moyen d'une résine adhésive.
  6. Disque de traitement de matériau selon l'une quelconque des revendications 1 à 5, dans lequel l'unité à ébarber (40) comprend un mélange de résine et de grains abrasifs.
  7. Procédé pour la production d'un disque (1) de traitement de matériau, le procédé comprenant les étapes suivantes :
    a) la production d'un corps de base (20) et d'une unité à ébarber (40) annulaire encerclant le corps de base (20) et
    b) le collage de lamelles (31) de l'unité de frottement sur un côté de frottement (24) du corps de base (20),
    dans lequel la production du corps de base (20) et de l'unité à ébarber (40) encerclant le corps de base (20) comprend les étapes suivantes conformément à l'étape a) :
    a.2.1) la fourniture de deux mélanges différents de résine et de grains abrasifs ;
    a.2.2) l'introduction des mélanges dans un moule de production pour former une première couche S0, la moule de production comprenant un anneau intérieur ayant un radius intérieur ri, un anneau extérieur et une face de base en forme de disque reliant l'anneau intérieur à l'anneau extérieur, le premier mélange formant le corps de base (20) étant appliqué sur un face d'anneau intérieur ayant le radius intérieur ri et un radius extérieur rm,n afin qu'une première couche du corps de base est formée, et le deuxième mélange, qui forme l'unité à ébarber (40), étant appliqué sur une face d'anneau extérieur de la couche du corps de base adjacent à la première couche du corps de base, la face d'anneau extérieur étant adjacente à la face d'anneau intérieur et ayant le radius intérieur rm,n et s'étendant à l'anneau extérieur du moule de production afin qu'une première couche de l'unité à ébarber est formée ;
    a.2.3) l'application des n autres couches Sn sur la première couche S0 conformément à l'étape a.2.2) pour former une pile ayant des (n+1) couches, n étant un entier naturel ;
    a.2.4) la compression de la pile ayant des (n+1) couches dans une presse afin que les n couches du corps de base forment le corps de base et les n couches de l'unité à ébarber forment l'unité à ébarber (40) ;
    dans lequel dans l'étape a.2.3), au moins deux couches S1, S2 sont appliquées sur la première couche S0 conformément à l'étape a.2.2) afin qu'une pile ayant au moins trois couches est formée ; et dans lequel dans les étapes a.2.2) et a.2.3), les couches S0 ou S0+u sont appliquées qui chacune a un radius rm,n, le radius rm,n de la couche S0 à S0+u et les couches Sn-o à Sn est plus grand que le radius rm,n des couches S0+u+1 à Sn-o-1 et que n-u-o ≥ 1.
  8. Procédé selon la revendication 7,
    dans lequel l'unité à ébarber (40) est produite dans l'étape a) de telle manière qu'elle comprend une face concave (43).
  9. Procédé selon l'une quelconque des revendications 7 à 8,
    dans lequel les lamelles (31) de l'unité de frottement sont collées sur le côté de frottement (24) du corps de base (20) au moyen d'une résine adhésive dans l'étape b).
EP18185545.3A 2017-07-26 2018-07-25 Disque de traitement des matériaux et son procédé de fabrication Active EP3434414B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017116950 2017-07-26

Publications (3)

Publication Number Publication Date
EP3434414A1 EP3434414A1 (fr) 2019-01-30
EP3434414B1 true EP3434414B1 (fr) 2025-09-03
EP3434414C0 EP3434414C0 (fr) 2025-09-03

Family

ID=63165181

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18185545.3A Active EP3434414B1 (fr) 2017-07-26 2018-07-25 Disque de traitement des matériaux et son procédé de fabrication

Country Status (1)

Country Link
EP (1) EP3434414B1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201009169Y (zh) * 2007-03-23 2008-01-23 天津瑞祺超硬材料磨具有限公司 镶嵌式立方氮化硼砂轮
CN205660547U (zh) * 2016-06-08 2016-10-26 倪玉明 一种铁路钢轨打磨砂轮

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59124054U (ja) * 1983-02-07 1984-08-21 株式会社デイスコ 電着砥石
JP3380646B2 (ja) * 1995-02-13 2003-02-24 日本ダイヤモンド株式会社 電着ブレード
JPH11170176A (ja) * 1997-12-12 1999-06-29 Toshiba Mach Co Ltd 複合研削工具
DE19812515A1 (de) * 1998-03-21 1999-09-23 M & F Entw & Patentverwertungs Lamellenschleifwerkzeug
DE102009025116A1 (de) * 2009-06-11 2010-12-16 Dronco Ag Schleif-und/oder Polierwerkzeug und Herstellverfahren
DE202010005489U1 (de) * 2010-05-25 2010-07-29 Rud. Starcke Gmbh & Co. Kg Schleifscheibe eines Vibrationsschleifers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201009169Y (zh) * 2007-03-23 2008-01-23 天津瑞祺超硬材料磨具有限公司 镶嵌式立方氮化硼砂轮
CN205660547U (zh) * 2016-06-08 2016-10-26 倪玉明 一种铁路钢轨打磨砂轮

Also Published As

Publication number Publication date
EP3434414A1 (fr) 2019-01-30
EP3434414C0 (fr) 2025-09-03

Similar Documents

Publication Publication Date Title
EP1319471B1 (fr) Disque de meulage avec segments abrasifs
DE2619479A1 (de) Verfahren zur ausbildung eines aufnahmeschlitzes fuer einen sprengring in einem keilverzahnten maschinenelement
DE102018104129A1 (de) Metallographische Schleifvorrichtung und Bauteile hiervon
DE60000988T2 (de) Lamellenschleifscheibe
DE102009044855A1 (de) Bausatz zum Nachrüsten einer Elektrodenschleifvorrichtung und Elektrodenschleifvorrichtung
EP3395502B1 (fr) Corps support pour un outil de meulage ou de coupe
DE102016112819A1 (de) Schleifrad
EP3000558B1 (fr) Outil destiné au traitement de matériaux
EP2265410B1 (fr) Meule de dégrossissage
DE102013202509A1 (de) Verfahren und schleifwerkzeug zum hochgenauen centerless-schleifen von wellenteilen mit hoher oberflächengüte
DE202012013026U1 (de) Baueinheit
DE102017208427B4 (de) Fahrradfelge
EP1543923B1 (fr) Disque d'ébauche
EP2440371B1 (fr) Outil de meulage et/ou de polissage et procédé de réalisation
DE102008025554A1 (de) Lamellenschleifscheibe
EP0430207B1 (fr) Rouleau de contact pour machine à meuler à bande
EP3434414A1 (fr) Disque de traitement des matériaux
EP3504028B1 (fr) Outil de dégrossissage
DE102015115313A1 (de) Schleifwerkzeug und dessen Verwendung zur computergesteuerten Nachbearbeitung gefräster Freiformflächen
EP0560153B1 (fr) Disque à meuler
EP1837123B1 (fr) Outil destiné au traitement de surfaces et son procédé de fabrication
DE102014119306A1 (de) Schleifkörper
DE202017007262U1 (de) Schleifscheibe und Schleifkörper, insbesondere eine rotierende Schleifscheibe
DE102010026971B4 (de) Rotationssymmetrisches Werkzeug, insbesondere Schleifwerkzeug
DE102023130279A1 (de) Lamellenschleifwerkzeug und Verfahren zu seiner Herstellung

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20190716

RBV Designated contracting states (corrected)

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20201012

REG Reference to a national code

Ref country code: DE

Ref country code: DE

Ref legal event code: R079

Ref document number: 502018016067

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: B24D0007140000

Ipc: B24D0007060000

RIC1 Information provided on ipc code assigned before grant

Ipc: B24D 7/06 20060101AFI20250224BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20250410

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

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

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502018016067

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

U01 Request for unitary effect filed

Effective date: 20250925

U07 Unitary effect registered

Designated state(s): AT BE BG DE DK EE FI FR IT LT LU LV MT NL PT RO SE SI

Effective date: 20251006

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

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: 20251203

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: 20250903

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: 20251204

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

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: 20250903

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

Ref country code: RS

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: 20251203

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

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: 20250903

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

Ref country code: SM

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: 20250903

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: 20260103

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

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: 20250903

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: 20250903