EP1716980A1 - Outil portatif avec entraînement à basculement - Google Patents

Outil portatif avec entraînement à basculement Download PDF

Info

Publication number
EP1716980A1
EP1716980A1 EP06112544A EP06112544A EP1716980A1 EP 1716980 A1 EP1716980 A1 EP 1716980A1 EP 06112544 A EP06112544 A EP 06112544A EP 06112544 A EP06112544 A EP 06112544A EP 1716980 A1 EP1716980 A1 EP 1716980A1
Authority
EP
European Patent Office
Prior art keywords
drive
bearing
output
hand tool
wobble
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.)
Granted
Application number
EP06112544A
Other languages
German (de)
English (en)
Other versions
EP1716980B1 (fr
Inventor
Jens Neumann
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP1716980A1 publication Critical patent/EP1716980A1/fr
Application granted granted Critical
Publication of EP1716980B1 publication Critical patent/EP1716980B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D11/00—Portable percussive tools with electromotor or other motor drive
    • B25D11/06—Means for driving the impulse member
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/331—Use of bearings
    • B25D2250/335—Supports therefor
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18056—Rotary to or from reciprocating or oscillating
    • Y10T74/18296—Cam and slide

Definitions

  • the invention relates to a hand tool with a tumbling device.
  • This has a drive element rotatable about a drive axis and a driven element coupled to the drive element via a wobble bearing.
  • the output element is alternately held back and forth swiveling about a wobble axis.
  • the swash bearing on the drive element has a drive-side bearing area with a drive-side guide running around the drive axis and an output-side bearing area with an output-side guide encircling the drive axis on the output element.
  • the swash bearing rolling elements which are guided simultaneously in both the drive-side guide and in the output-side guide.
  • Such wobble devices are often used in rotary hammers to generate a reciprocating linear movement of a piston from a rotary motion of a drive spindle.
  • a striking body is driven, which serves for the pulse-like application of impact energy to a tool holder.
  • DE 34 27 342 A1 describes a rotary hammer with a driven by a wobble air cushion percussion.
  • the wobble drive has a pressed onto an intermediate shaft drum with a spherical outer side, in which a trough is inserted. Furthermore, the wobble drive on an annular swash plate, on the inside of an outer raceway is recessed. Between the trough and the outer trough balls are arranged, which are guided in both troughs simultaneously.
  • Such wobble drives are subject during operation of a relatively heavy stress, in particular occurring during operation of the percussion pulse-like reaction forces.
  • the bearing areas can only be dimensioned so that even a mounting of the drive element and the output element and the intermediate rolling elements is possible.
  • the storage areas have only a limited breaking strength. As a result, in particular in the area of the guides Material breaks occur that significantly shorten the intended life of the wobble drive.
  • the present invention has for its object to avoid the disadvantages mentioned in a wobble drive and to ensure greater stability.
  • the object is achieved in that the swash bearing has on one of the bearing areas on a first side with respect to the respective guide a cross-sectional reinforcement against a second side of the bearing area.
  • the cross-sectional reinforcement can be formed, for example, by a material reinforcement or a region-wise cross-sectional enlargement with respect to a basic shape of the relevant bearing area.
  • the cross-sectional reinforcement is formed by a circumferential cross-sectional enlargement of the respective storage area on the first side with respect to the guide relative to the basic shape of the storage area on the second side.
  • cylindrical or spherical basic shape of the storage area thus the cross-sectional enlargement is achieved by a changed diameter of the storage area on the first side relative to the diameter on the second side of the storage area.
  • a higher breaking strength is achieved on the first side of the relevant guide by an enlarged material cross-section, which allows trouble-free operation of the wobble drive over the life of the power tool.
  • the cross section of the bearing area is designed such that a trouble-free installation of the drive element and the output element with the interposition of the rolling elements is possible.
  • the cross-sectional reinforcement at the output-side bearing area is formed by a reduced inner diameter of the first side of the output-side bearing area on the output-side guide relative to the inner diameter on the second side of the output-side storage area.
  • the output-side storage area has a cylindrical basic shape both on the first side and on the second side.
  • the different inner diameters of the driven-side bearing region can be produced particularly easily by drilling with different diameters.
  • the cross-sectional reinforcement is formed by an enlarged outer diameter of the first side of the drive-side bearing area on the drive-side guide relative to the second side of the drive-side bearing area.
  • the drive-side bearing area preferably has a spherical basic shape both on the first side and on the second side in order to enable a maximum cross-sectional area and thus maximum stability in the entire drive-side bearing area.
  • FIG. 1 shows a hand tool 2 in the form of a hammer drill, which has a tool holder 6, which is held on a tool spindle 8, on an end of an only indicated housing 4 in the working direction RA of the hand tool device 2.
  • the tool spindle 8 can be acted upon by a hammer blower 10 with a pulse-like recurring impact force.
  • the hammer blower 10 on a racket 12 which is displaceable in a guide sleeve 14 by a field piston 16 in a reciprocating motion in which he repeats on a functioning as a kind of anvil 18 rear end of the tool spindle 8.
  • the hammer blower 10 has a wobble device 20 for the reciprocating drive of the exciter piston 16.
  • the wobble device 20 essentially comprises a drive element 22 in the form of a wobble drum pressed onto an intermediate shaft 24 and an output element 26 in the form of a wobble plate coupled to the exciter piston 16, which in operation performs a reciprocating pivoting movement S about a wobble axis T.
  • the output element 26 is coupled to the drive element 22 via spherical rolling elements 28 of a wobble bearing 30.
  • the outer surface 32 of the drive element 22 has a spherical basic shape and acts as a drive-side storage area, in which a drive-side guide 34 is recirculated for the rolling elements 28.
  • the drive-side guide 34 is aligned with respect to a drive axis A of the intermediate shaft 24 and the drive element 22 inclined.
  • the driven element 26 has an inner wall 36 serving as a driven-side bearing area with a cylindrical basic shape into which an output-side guide 38 for the rolling elements 28 is centrally embedded. This inner wall 36 defines a receiving space in which the drive element 22 is mounted.
  • a transmission sleeve 42 is set in rotary motion about the guide sleeve 14 via the intermediate shaft 24.
  • this rotational movement is transmitted to the tool spindle 8, whereby this is acted upon in addition to the impact pulse simultaneously with a torque M and the hand tool 2 is thus available for a hammer drill application.
  • various embodiments of the wobble device 20 are provided, in which the stability of the respective wobble bearing 30 is increased by a unilateral cross-sectional enlargement of the basic shape of the respective bearing region.
  • FIG. 2 shows the wobble device 20 in an embodiment in which an inner diameter IDM of the inner wall 36 required for mounting the output element 26 on the drive element 22 with the interposition of the rolling elements 28 is provided on a side 46 of the output-side guide 38 facing away from the working direction RA.
  • the cylindrical inner wall 36 On the side 48 in the working direction RA of the driven-side bearing area with respect to the driven-side guide 38, the cylindrical inner wall 36, on the other hand, has an inner diameter IDV which is reduced in relation to the inner diameter IDM and enlarges the cross-section of the driven-side bearing area. In this way, the breaking strength of the driven-side bearing area is increased on the side 48 in the working direction RA.
  • FIG. 3 shows the wobble device 20 in an embodiment in which the inner diameter IDM 'of the inner wall 36 required for mounting the output element 26 on the drive element 22 with the interposition of the rolling elements 28 is provided on the side 46 of the output-side guide 38 facing the working direction RA.
  • the assembly of the wobble device 20 in this embodiment by a relative movement of the drive element 22 relative to the output element 26 along the mounting direction RM 'done.
  • the cylindrical inner wall 36 On the side 46 of the driven-side bearing area facing away from the working direction RA with respect to the output-side guide 38, the cylindrical inner wall 36 now has the inner diameter IDV 'reduced relative to the inner diameter IDM', by which the cross-section of the output-side bearing area is increased. This way will increases the breaking strength of the output-side bearing area on the side 46 facing away from the working direction RA.
  • either the embodiment of FIG. 2 or FIG. 3 can thus be provided in order to reinforce the side of the output-side bearing area, which is subjected to the greatest load during operation.
  • the other side is used for mounting the wobble device 20.
  • the cylindrical basic shape of the inner wall 36 remains on both sides 46, 48 of the driven-side storage area.
  • FIG. 4 shows the wobble device 20 in an embodiment in which a maximum outer diameter ADM of the surface 32 of the drive-side bearing area is provided on the drive element 22 on the drive element 22 with the interposition of the rolling elements 28 on a side 50 of the drive-side guide 34 facing the working direction RA is.
  • the surface 32 On the side 52 of the drive-side bearing area of the drive-side guide 34, which faces away from the working direction RA, the surface 32 now has an outer diameter ADV which is larger than the outer diameter ADM and enlarges the cross-section of the drive-side bearing area. In this way, the breaking strength of the drive-side bearing area is increased on the side 52 facing away from the working direction RA.
  • FIG. 5 shows the wobble device 20 in an embodiment in which the maximum possible external diameter ADM 'of the surface 32 on the drive element 22 with the interposition of the rolling elements 28 on the side 52 of the drive-side bearing area facing away from the working direction RA with respect to the drive-side Guide 34 is provided.
  • ADM 'of the surface 32 on the drive element 22 with the interposition of the rolling elements 28 on the side 52 of the drive-side bearing area facing away from the working direction RA with respect to the drive-side Guide 34 is provided.
  • the surface 32 On the side 50 of the drive-side guide 34 which is in the working direction RA, the surface 32 now has an outer diameter ADV 'which is larger than the outer diameter ADM' and through which the cross-section of the drive-side Warehouse area is increased. In this way, the breaking strength of the drive-side bearing area is increased on the side 50 in the working direction RA.
  • either the embodiment of FIG. 4 or FIG. 5 can thus be provided to the side 50; 52 of the drive-side storage area to reinforce, which is the most heavily loaded during operation.
  • 50 is used for mounting the wobble device 20.
  • the spherical basic shape of the surface 32 remains on both sides 50, 52 of the output-side storage area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Rolling Contact Bearings (AREA)
  • Drilling And Boring (AREA)
  • Earth Drilling (AREA)
  • Portable Nailing Machines And Staplers (AREA)
EP06112544A 2005-04-25 2006-04-12 Outil portatif avec entraînement à basculement Active EP1716980B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005019196A DE102005019196A1 (de) 2005-04-25 2005-04-25 Handwerkzeuggerät mit Taumeleinrichtung

Publications (2)

Publication Number Publication Date
EP1716980A1 true EP1716980A1 (fr) 2006-11-02
EP1716980B1 EP1716980B1 (fr) 2009-03-11

Family

ID=36659967

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06112544A Active EP1716980B1 (fr) 2005-04-25 2006-04-12 Outil portatif avec entraînement à basculement

Country Status (5)

Country Link
US (1) US7404451B2 (fr)
EP (1) EP1716980B1 (fr)
JP (1) JP2006305724A (fr)
CN (1) CN1853866B (fr)
DE (2) DE102005019196A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009049843A3 (fr) * 2007-10-16 2009-09-03 Ab Skf Palier à roulement
WO2010118849A1 (fr) * 2009-04-16 2010-10-21 Aktiebolaget Skf (Publ) Agencement de palier oscillant

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007000081A1 (de) * 2007-02-08 2008-08-21 Hilti Ag Handwerkzeugmaschine mit pneumatischem Schlagwerk
DE102007009985A1 (de) * 2007-03-02 2008-09-25 Robert Bosch Gmbh Handwerkzeugmaschine
JP5056584B2 (ja) * 2008-05-26 2012-10-24 マックス株式会社 駆動工具
WO2010010474A1 (fr) * 2008-07-21 2010-01-28 Trevor Charles Crozier Scie motorisée rotative
US20110194796A1 (en) * 2010-02-05 2011-08-11 Schaeffler Technologies Gmbh & Co. Kg Angled Bore Bearing
US8636081B2 (en) 2011-12-15 2014-01-28 Milwaukee Electric Tool Corporation Rotary hammer
RU2012158211A (ru) * 2010-06-09 2014-07-20 Бош Пауер Тулз (Чайна) Ко., Лтд. Ударный механизм
US20110308829A1 (en) * 2010-06-18 2011-12-22 Jiangsu Hehui Electronic Tools Co., Ltd. Nail gun
DE102011010745A1 (de) * 2011-02-09 2012-08-09 Robert Bosch Gmbh Werkzeugmaschine mit einer hin- und hergehenden Abtriebsspindel
CN102416582B (zh) * 2011-08-06 2013-09-11 台州市恒大刀刃具有限公司 自动定向装置
DE102012206445A1 (de) * 2012-04-19 2013-10-24 Hilti Aktiengesellschaft Werkzeugmaschine
DE102012206451B4 (de) * 2012-04-19 2020-12-10 Hilti Aktiengesellschaft Handwerkzeugmaschine
US10328560B2 (en) 2015-02-23 2019-06-25 Brian Romagnoli Multi-mode drive mechanisms and tools incorporating the same
DE102015203487A1 (de) * 2015-02-26 2016-09-01 Ecoroll Ag Werkzeugtechnik Festhammervorrichtung zum Beeinflussen von Werkstücken und zugehöriges Verfahren
CN111300322A (zh) * 2020-03-17 2020-06-19 广东电网有限责任公司 一种电动拧紧工具
CN113813156B (zh) * 2021-08-06 2024-05-31 上海清透智能科技有限公司 一种低偏摆筋膜枪

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446931A (en) * 1980-10-21 1984-05-08 Robert Bosch Gmbh Power driven hammer drill
DE3307521A1 (de) * 1983-03-03 1984-09-06 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
EP0152645A1 (fr) * 1984-02-14 1985-08-28 Licentia Patent-Verwaltungs-GmbH Sélecteur de dispositif de forage à percussion ou rotation avec protection du mandrin
DE3427342A1 (de) 1984-07-25 1986-01-30 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
EP0358978A1 (fr) 1988-09-01 1990-03-21 Black & Decker Inc. Marteau de forage rotatif
EP1413401A1 (fr) * 2002-10-23 2004-04-28 Black & Decker Inc. Ensemble de piston et tourillion dans un marteau perforateur et leur procédé de montage

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1812934A (en) * 1930-08-11 1931-07-07 George V Curtis Universal joint
DE2449191C2 (de) * 1974-10-16 1988-03-24 Robert Bosch Gmbh, 7000 Stuttgart Hammer
DE2934630C2 (de) * 1979-08-28 1985-05-09 Uni-Cardan Ag, 5200 Siegburg Kreuzgelenk
DE3504650C2 (de) * 1985-02-12 1994-01-20 Bosch Gmbh Robert Bohrhammer mit Verstärkung der Betätigungskraft für die Kupplung des Schlagantriebes
CN2273243Y (zh) * 1996-09-28 1998-01-28 常州市电动工具厂 电锤
CN2386925Y (zh) * 1999-03-06 2000-07-12 李宝志 一种电锤
DE10140319A1 (de) * 2001-08-16 2003-03-13 Bosch Gmbh Robert Handwerkzeugmaschine, insbesondere Bohr- und/oder Meißelhammer
JP3976187B2 (ja) * 2002-11-20 2007-09-12 株式会社マキタ ハンマードリル
DE102004026845A1 (de) * 2004-06-02 2005-12-22 Robert Bosch Gmbh Handwerkzeugmaschine, insbesondere Bohr- und/oder Schlaghammer

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4446931A (en) * 1980-10-21 1984-05-08 Robert Bosch Gmbh Power driven hammer drill
DE3307521A1 (de) * 1983-03-03 1984-09-06 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
EP0152645A1 (fr) * 1984-02-14 1985-08-28 Licentia Patent-Verwaltungs-GmbH Sélecteur de dispositif de forage à percussion ou rotation avec protection du mandrin
DE3427342A1 (de) 1984-07-25 1986-01-30 Robert Bosch Gmbh, 7000 Stuttgart Bohrhammer
EP0358978A1 (fr) 1988-09-01 1990-03-21 Black & Decker Inc. Marteau de forage rotatif
EP1413401A1 (fr) * 2002-10-23 2004-04-28 Black & Decker Inc. Ensemble de piston et tourillion dans un marteau perforateur et leur procédé de montage

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009049843A3 (fr) * 2007-10-16 2009-09-03 Ab Skf Palier à roulement
US10670072B2 (en) 2007-10-16 2020-06-02 Aktiebolaget Skf Rolling bearing
WO2010118849A1 (fr) * 2009-04-16 2010-10-21 Aktiebolaget Skf (Publ) Agencement de palier oscillant

Also Published As

Publication number Publication date
DE502006003052D1 (de) 2009-04-23
US20060266139A1 (en) 2006-11-30
JP2006305724A (ja) 2006-11-09
CN1853866A (zh) 2006-11-01
DE102005019196A1 (de) 2006-10-26
US7404451B2 (en) 2008-07-29
EP1716980B1 (fr) 2009-03-11
CN1853866B (zh) 2011-08-24

Similar Documents

Publication Publication Date Title
EP1716980B1 (fr) Outil portatif avec entraînement à basculement
DE3405922C2 (fr)
DE10209101A1 (de) Kraftwerkzeug
DE102006031565B4 (de) Schlagbohrmaschine
DE102007061716A1 (de) Taumelantrieb einer Handwerkzeugmaschine
DE102006021506A1 (de) Schlagwerkzeug
EP1536925A2 (fr) Outil et porte-outil con us pour une machine-outil portative
WO2002020224A1 (fr) Porte-outil pour une machine-outil
EP3638457B1 (fr) Machine-outil portative
DE19540396A1 (de) Bohr- und/oder Meisselgerät
DE60300596T2 (de) Schlaghammer
DE19730198B4 (de) Wellenkupplung
DE102004058686A1 (de) Elektrowerkzeug mit einem zwischen den Betriebsarten Bohren, Schlagbohren, Meißeln umschaltbaren Antrieb
EP2116333A1 (fr) Perceuse à percussion
EP2700477B1 (fr) Agencement d'engrenage pour une machine-outil et machine-outil
EP0663270B1 (fr) Marteau à percussion rotative et/ou rectiligne
EP2444204A1 (fr) Machine-outil
EP2314420B1 (fr) Machine-outil électrique ayant un fonctionnement à marteau perforateur
DE102007062248A1 (de) Handwerkzeugmaschine mit einer, mindestens eine drehbar gelagerte Zwischenwelle umfassenden Getriebevorrichtung
EP2842696B1 (fr) Outil électrique
DE102006035417B4 (de) Handwerkzeugmaschine
DE2655899A1 (de) Handwerkzeugmaschine
CH667490A5 (de) Bohrhammer.
EP0375917B1 (fr) Perceuse
EP1281483B1 (fr) Marteau rotatif

Legal Events

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

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

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

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
17P Request for examination filed

Effective date: 20070502

RBV Designated contracting states (corrected)

Designated state(s): CH DE FR GB IT LI

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566

17Q First examination report despatched

Effective date: 20070827

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): CH DE FR GB IT LI

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 Corresponds to:

Ref document number: 502006003052

Country of ref document: DE

Date of ref document: 20090423

Kind code of ref document: P

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: 20091214

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 11

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

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

Ref country code: IT

Payment date: 20230426

Year of fee payment: 18

Ref country code: FR

Payment date: 20230420

Year of fee payment: 18

Ref country code: DE

Payment date: 20230420

Year of fee payment: 18

Ref country code: CH

Payment date: 20230502

Year of fee payment: 18

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

Ref country code: GB

Payment date: 20230419

Year of fee payment: 18