EP0680806A1 - Werkzeug zum Bandschleifen von zylindrischen Lagerflächen mit Durchmesserkontrole der Lager - Google Patents

Werkzeug zum Bandschleifen von zylindrischen Lagerflächen mit Durchmesserkontrole der Lager Download PDF

Info

Publication number
EP0680806A1
EP0680806A1 EP95400993A EP95400993A EP0680806A1 EP 0680806 A1 EP0680806 A1 EP 0680806A1 EP 95400993 A EP95400993 A EP 95400993A EP 95400993 A EP95400993 A EP 95400993A EP 0680806 A1 EP0680806 A1 EP 0680806A1
Authority
EP
European Patent Office
Prior art keywords
arm
angle
axis
machined
pads
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
EP95400993A
Other languages
English (en)
French (fr)
Other versions
EP0680806B1 (de
Inventor
Jean-Claude Pineau
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.)
Procedes Machines Speciales S P M S Ste
Original Assignee
Procedes Machines Speciales S P M S Ste
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 Procedes Machines Speciales S P M S Ste filed Critical Procedes Machines Speciales S P M S Ste
Publication of EP0680806A1 publication Critical patent/EP0680806A1/de
Application granted granted Critical
Publication of EP0680806B1 publication Critical patent/EP0680806B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
    • B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
    • B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation

Definitions

  • the present invention relates to a tool for grooming cylindrical seats on parts, in particular journals and crank pins on crankshafts, with diameter control of the seats.
  • Grooming machines known from the applicant's patent application EP-A-0 366 506 include, for each surface to be machined on a workpiece, a pivoting arm movable vertically, and three abrasive band application pads mounted, a first in the upper middle position on the arm and the other two in the lower lateral position on two jaws articulated on the arm and coupled so that they can be clamped against each other, so that when tightening against the reach machine, the three pads are arranged substantially at the three angles of an equilateral triangle.
  • the abrasive belt application pads have an application surface in a circular arc extending over a relatively small angle, generally less than 30 °. These tools give good results with regard to the condition of the surfaces of the spans.
  • honing and grooming machines using stones or pads extending over angles of more than 30 ° allow, by their enveloping shape, to better compensate for shape defects (ovalization, runout, etc.) and the defects of rectitude of the parts.
  • control gauge mounted on one of the jaws and comprising two opposite sensors, aligned, to measure the diameter of the bearing surface, during the machining of the latter, and possibly controlling the stopping of the machining when this diameter reaches a predetermined value.
  • the Applicant is not aware of the use of a diameter control device on a grooming tool comprising three enveloping pads arranged in a triangle, the first on one arm and the other two on two jaws articulated on said arm.
  • the present invention relates to a tool for applying an abrasive strip against cylindrical surfaces to be machined on parts, in particular the journals and crankshaft pins, with control of the diameter of the surfaces, this tool comprising enveloping pads to meet requirements. severe with regard to the absence of defects in form, straightness and precision of the spans.
  • the tool object of the invention is intended for the application of an abrasive belt on a machine for grooming spans cylindrical on parts, in particular trunnions and crank pins on crankshafts, comprising for each reach to be machined a pivoting arm movable vertically, and three abrasive band application pads mounted one in the middle position on the arm and the other two in low lateral position on two jaws articulated on the arm and coupled so that they can be tightened against each other, so that when tightening against the bearing to be machined, the three pads are arranged substantially at the angles of a equilateral triangle.
  • the arm carries a first pad having a concave surface for applying abrasive tape extending over an angle greater than 90 ° and less than 180 °.
  • the arm also carries a control gauge with two opposite sensors aligned horizontally, located below the two angular ends of the first shoe, to measure the diameter of the bearing to be machined.
  • Each of the two jaws carries a second shoe having a concave surface for applying abrasive tape extending over an angle slightly less than 90 °, so that in the tightened state around the surface to be machined, the three shoes surround the scope to be machined at least 270 °, the first above and the second two below the two caliber sensors located on the same diameter of the scope.
  • the first shoe and the gauge are fixed to a support mounted on the arm with limited mobility in horizontal translation perpendicular to the axis of the bearing to be machined.
  • the two second pads can be mounted on their jaws with limited mobility in oscillation around axes parallel to the axis of the scope.
  • the support of the first shoe and of the caliber is advantageously mounted on the arm also with limited mobility in oscillation around an axis perpendicular to the axis of the bearing to be machined.
  • Said axis of articulation of the support preferably passes a short distance above the axis of the bearing surface to be machined.
  • FIG. 1 An illustrative and nonlimiting embodiment of a tool according to the invention will be described below in more detail.
  • the unique figure of drawing is an overall view of the lower part of a grooming arm carrying the grooming and control tools according to the invention.
  • the grooming and control tool according to the invention is used on a machine according to patent application EP-AO 366 506 for the abrasive machining of cylindrical surfaces on parts, in particular for machining by crankshaft journals and crank pins.
  • an arm 1 mounted freely pivoting about a horizontal axis on a slide not shown movable vertically.
  • the arm 1 carries two jaws 2a, 2b articulated by horizontal axes 3a and 3b on the arm 1 and coupled by toothed segments 4a, 4b so as to be able to be clamped one against the other by synchronous pivoting in opposition with respect on arm 1, under the action of a common actuating cylinder 5.
  • a first shoe 7 is mounted in the upper middle position on the arm 1 and two second shoes 8a and 8b are mounted in the lower lateral position on the two jaws 2a and 2b in such a way that when, after lowering the arm 1 to bring the first shoe 7 onto the working surface, the three shoes 7, 8a and 8b are tightened, under the action of the jack 5, against the bearing surface 6, for the application against this bearing surface 6 of an abrasive strip 9, the three pads 7, 8a and 8b are arranged substantially at the three angles of an equilateral triangle. Due to the balancing of the mass of the arm 1 by a balancing means not shown, for example a jack with controlled supply pressure, the three pads are thus applied with a substantially uniform pressure against the bearing surface 6 to be machined.
  • the first pad 7 has, for the application of the abrasive strip 9 against the surface 6 to be machined, a concave application surface extending over an angle slightly less than 180 °, in this case over an angle of approximately 160 °.
  • the two second pads 8a and 8b have, for the application of the same abrasive strip 9 against the surface 6, each a concave application surface extending over an angle slightly less than 90 °, in this case on an angle of about 70 °.
  • the pad 7 envelopes approximately the upper half of the bearing surface 6 and each second pad 8a, 8b envelopes approximately a lower quarter of the bearing surface 6, two diametrically free spaces opposites remaining between each of the two angular ends of the upper shoe 7 and the corresponding upper angular end of each lower shoe 8a, 8b.
  • the two lower pads 8a, 8b are mounted on the jaw 2a, 2b respectively by pivot axes 12a, 12b parallel to the axis of the bearing surface 6, so as to have, as indicated by arrows 11a and 11b, mobility limited in oscillation around axes 12a, 12b.
  • the upper shoe 7 is mounted on a support 13 in inverted U, the two arms 14a, 14b each carrying, at their lower end, a pin 15a, 15b, the two pins 15a, 15b being aligned horizontally on an axis perpendicular to the axis of the bearing surface 6 and being pivotally mounted and movable in translation along their axis on the lower ends of a yoke 17 fixed to the arm 1.
  • a control gauge 16 in inverted U comprising two opposite aligned sensors, is also fixed to the support 13 carrying the upper shoe 7, so that its two sensors, when the three jaws 7, 8a and 8b are clamped against the bearing 6 to be machined, are located on a horizontal line corresponding to the diameter of the bearing surface 6 and thus measure the diameter of the latter.
  • the abrasive strip 9 arrives between the two lower pads 8a, 8b, passes for example between the pad 8b and the surface 6, then departs from the surface 6 to bypass one of the sensors of the caliber 16, passes over a roller of return, returns to the range 6 to pass between the upper shoe 7 and the range 6, then departs again from the range 6 and passes over a return roller, to bypass the other sensor of the caliber 16, then returns to the scope 6 to pass between the pad 8a and the scope 6, and finally comes out between the two pads 8a and 8b.
  • the upper shoe 7 could extend over a smaller angle, but greater than 90 ° and preferably greater than 120 °
  • the lower shoes 8a, 8b could each extend over a smaller or larger angle, but preferably between about 60 ° and 80 °, so that the three pads 7, 8a and 8b together surround the scope 6 as completely as possible, preferably at an angle equal to or greater than 270 °.
  • the sensors of the measurement gauge 16 can, in the context of the invention, consist of sensors of known type, for example electronic or pneumatic sensors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
EP95400993A 1994-05-04 1995-05-02 Werkzeug zum Bandschleifen von zylindrischen Lagerflächen mit Durchmesserkontrole der Lager Expired - Lifetime EP0680806B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9405449 1994-05-04
FR9405449A FR2719516B1 (fr) 1994-05-04 1994-05-04 Outillage pour le toilage de portées cylindriques avec contrôle de diamètre des portées.

Publications (2)

Publication Number Publication Date
EP0680806A1 true EP0680806A1 (de) 1995-11-08
EP0680806B1 EP0680806B1 (de) 1999-10-27

Family

ID=9462848

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400993A Expired - Lifetime EP0680806B1 (de) 1994-05-04 1995-05-02 Werkzeug zum Bandschleifen von zylindrischen Lagerflächen mit Durchmesserkontrole der Lager

Country Status (6)

Country Link
US (1) US5651719A (de)
EP (1) EP0680806B1 (de)
JP (1) JPH08150555A (de)
DE (1) DE69512956T2 (de)
ES (1) ES2138709T3 (de)
FR (1) FR2719516B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997043088A1 (de) * 1996-05-16 1997-11-20 Naxos-Union Schleifmittel- Und Schleifmaschinenfabrik Ag I.K. Vorrichtung zum massfinishen von kurbelwellen oder dergleichen werkstücken

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2820059B2 (ja) * 1995-03-24 1998-11-05 トヨタ自動車株式会社 研摩装置
JP3661712B2 (ja) * 1995-11-13 2005-06-22 トヨタ自動車株式会社 ラップ加工装置
FR2758756B1 (fr) * 1997-01-30 1999-02-26 Procede Machines Speciales Spm Ensemble d'usinage par bande abrasive d'une portee cylindrique d'une piece
US6309287B2 (en) 1998-01-15 2001-10-30 Ford Global Technologies Cam micro-finishing tool
JPH11285958A (ja) 1998-04-03 1999-10-19 Toyota Motor Corp 研摩装置
EP1053826A3 (de) * 1999-05-15 2003-02-05 Supfina Grieshaber GmbH & Co. KG Vorrichtung zum Bandfinishen von gekrümmten Werkstückoberflächen
FR2808463B1 (fr) * 2000-05-04 2002-09-13 Procedes Et Machines Speciales Machine d'usinage par bande abrasive de portees cylindriques sur des pieces
FR2835460B1 (fr) * 2002-02-05 2004-07-23 Procedes Et Machines Speciales Procede et dispositif d'usinage par bande abrasive d'une surface de portee sur une piece, notamment pour la superfinition d'une surface de came sur un arbre a cames
FR2872726B1 (fr) * 2004-07-08 2007-11-23 Societes Des Procedes Et Machi Dispositif de superfinition et procede associe
DE102007051047B4 (de) * 2007-10-16 2023-03-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Andrückeinrichtung für Finishband sowie Vorrichtung und Verfahren zur Finishbearbeitung von Umfangsflächen an zylindrischen Werkstückabschnitten
WO2014117422A1 (zh) * 2013-02-01 2014-08-07 Huang Xuyang 一种抛光机合页结构及同步双抛光机
DE102014208319B4 (de) * 2014-05-05 2021-05-06 Supfina Grieshaber Gmbh & Co. Kg Bandfinishvorrichtung und Verfahren zum Betrieb einer Bandfinishvorrichtung
CN104802087A (zh) * 2015-04-08 2015-07-29 河南科技大学 数字式磨加工主动测量仪
CN104827398B (zh) * 2015-04-09 2017-06-13 北京第二机床厂有限公司 跟随磨削中在线跟随直径测量方法及装置
DE102015221939B4 (de) * 2015-11-09 2018-10-31 Supfina Grieshaber Gmbh & Co. Kg Finishbandvorrichtung und Verfahren zur finishenden Bearbeitung eines Werkstücks
CN113910024B (zh) * 2021-10-27 2023-01-06 一汽解放汽车有限公司 一种主动量仪的摆动范围的调节方法及磨床

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8602817U1 (de) * 1986-02-04 1986-04-10 Maschinenbau Grieshaber GmbH & Co, 77709 Wolfach Vorrichtung für die Bearbeitung von Lagerzapfen von Kurbelwellen od. dgl.
EP0219301A2 (de) * 1985-10-08 1987-04-22 Industrial Metal Products Corporation Feinstbearbeitungsvorrichtung und Verfahren
EP0338224A2 (de) * 1988-04-21 1989-10-25 Ford-Werke Aktiengesellschaft Vorrichtung zur Feinbearbeitung der Hubzapfen von Kurbelwellen
EP0366506A1 (de) * 1988-09-27 1990-05-02 Societe Des Procedes Machines Speciales Zur Schleifbearbeitung von zylindrischen Lagerflächen von Werkstücken, insbesondere für die Bearbeitung von Kurbelwellen- und Kurbelzapfen mittels Bandschleifer
EP0382336A2 (de) * 1989-02-07 1990-08-16 Industrial Metal Products Corporation Grössenkontrollschuh für eine Feinstbearbeitungsmaschine
US4993191A (en) * 1989-04-28 1991-02-19 Industrial Metal Products Corporation Roller cam microfinishing tooling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1908048A (en) * 1930-09-02 1933-05-09 Norton Co Lapping machine
US3041792A (en) * 1959-09-14 1962-07-03 Norton Co Lapping machine
FR2665526A1 (fr) * 1990-08-02 1992-02-07 Meseltron Sa Dispositif pour la mesure de diametres de pieces cylindriques en cours d'usinage.
US5437125A (en) * 1992-03-16 1995-08-01 Barton, Ii; Kenneth A. Surface polishing assembly
US5210978A (en) * 1992-05-26 1993-05-18 J. D. Phillips Corporation Nose piece retainer for abrasive belt backing shoe

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0219301A2 (de) * 1985-10-08 1987-04-22 Industrial Metal Products Corporation Feinstbearbeitungsvorrichtung und Verfahren
DE8602817U1 (de) * 1986-02-04 1986-04-10 Maschinenbau Grieshaber GmbH & Co, 77709 Wolfach Vorrichtung für die Bearbeitung von Lagerzapfen von Kurbelwellen od. dgl.
EP0338224A2 (de) * 1988-04-21 1989-10-25 Ford-Werke Aktiengesellschaft Vorrichtung zur Feinbearbeitung der Hubzapfen von Kurbelwellen
EP0366506A1 (de) * 1988-09-27 1990-05-02 Societe Des Procedes Machines Speciales Zur Schleifbearbeitung von zylindrischen Lagerflächen von Werkstücken, insbesondere für die Bearbeitung von Kurbelwellen- und Kurbelzapfen mittels Bandschleifer
EP0382336A2 (de) * 1989-02-07 1990-08-16 Industrial Metal Products Corporation Grössenkontrollschuh für eine Feinstbearbeitungsmaschine
US4993191A (en) * 1989-04-28 1991-02-19 Industrial Metal Products Corporation Roller cam microfinishing tooling

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997043088A1 (de) * 1996-05-16 1997-11-20 Naxos-Union Schleifmittel- Und Schleifmaschinenfabrik Ag I.K. Vorrichtung zum massfinishen von kurbelwellen oder dergleichen werkstücken

Also Published As

Publication number Publication date
ES2138709T3 (es) 2000-01-16
EP0680806B1 (de) 1999-10-27
US5651719A (en) 1997-07-29
JPH08150555A (ja) 1996-06-11
FR2719516A1 (fr) 1995-11-10
DE69512956T2 (de) 2000-06-21
FR2719516B1 (fr) 1996-07-26
DE69512956D1 (de) 1999-12-02

Similar Documents

Publication Publication Date Title
EP0680806B1 (de) Werkzeug zum Bandschleifen von zylindrischen Lagerflächen mit Durchmesserkontrole der Lager
EP0366506B1 (de) Zur Schleifbearbeitung von zylindrischen Lagerflächen von Werkstücken, insbesondere für die Bearbeitung von Kurbelwellen- und Kurbelzapfen mittels Bandschleifer
CA2128564C (fr) Dispositif de nettoyage d'un cylindre
CH689350A5 (fr) Machine à meuler.
EP0853527A1 (de) Mess-und regelgerät für die bearbeitung von umlaufenden zylindrischen werkstücken
EP1160054B1 (de) Vorrichtung zum Bearbeiten von zylindrischen Laufflächen mittels eines Schleifbandes
EP0624431B1 (de) Bandschleifmaschine für zylindrische Werkstücke
FR2610857A1 (fr) Dispositif antivibration et dispositif de guidage pour scie a ruban
FR2580586A1 (fr) Dispositif d'application de colle pour machine a etiqueter
EP0856379B1 (de) Schleifband Vorrichtung zum Bearbeiten einer cylindrischen Lageroberfläche eines Werkstückes
EP0371833A1 (de) Verfahren und Vorrichtung zur Fertigbearbeitung einer sphärischen, konkaven Lagerfläche an einem Rollkörpersegment, insbesondere für ein homokinetisches Gelenk
EP1336454B1 (de) Verfahren und Vorrichtung zur Feinstbearbeitung der Lagerfläche eines Werkstücks, insbesondere für die Feinstbearbeitung der Nockenfläche einer Nockenwelle
FR2725047A1 (fr) Procede et dispositif pour obvier a la fragilite des aretes d'une lentille ophtalmique, et lentille ophtalmique correspondante
FR2584010A1 (fr) Poupee porte-meule pivotante
FR2547554A1 (fr) Dispositif distributeur pour machine a emballer
FR2789340A1 (fr) Machine de marquage
FR2541599A1 (fr) Perfectionnements aux laminoirs
EP0576332B1 (de) Bördelkopf für Konservendosen mit Spielregulierungsmitteln
FR2694715A1 (fr) Procédé et appareil de rectification des manetons de villebrequin.
FR2706334A1 (fr) Dispositif d'ébavurage pour chant de tôle.
FR2828230A1 (fr) Charniere, notamment pour panneau pivotant
FR2791292A1 (fr) Ensemble d'usinage de pieces par abrasif, notamment de superfinition
BE500453A (de)
EP0576309A1 (de) Vorrichtung zur Prüfung des Längsprofils eines Zylinders
EP0799144A1 (de) Bremsvorrichtung für schienenfahrzeug

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): DE ES GB IT

17P Request for examination filed

Effective date: 19960320

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19981021

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69512956

Country of ref document: DE

Date of ref document: 19991202

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

Effective date: 19991112

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2138709

Country of ref document: ES

Kind code of ref document: T3

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

Ref country code: GB

Payment date: 20010424

Year of fee payment: 7

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

Ref country code: ES

Payment date: 20010511

Year of fee payment: 7

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

Ref country code: DE

Payment date: 20010514

Year of fee payment: 7

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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: 20020502

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 NON-PAYMENT OF DUE FEES

Effective date: 20020503

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

Ref country code: DE

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

Effective date: 20021203

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

Effective date: 20020502

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030611

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

Ref country code: IT

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

Effective date: 20050502