EP1362652A1 - Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe - Google Patents
Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe Download PDFInfo
- Publication number
- EP1362652A1 EP1362652A1 EP02009798A EP02009798A EP1362652A1 EP 1362652 A1 EP1362652 A1 EP 1362652A1 EP 02009798 A EP02009798 A EP 02009798A EP 02009798 A EP02009798 A EP 02009798A EP 1362652 A1 EP1362652 A1 EP 1362652A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- workpiece
- roller
- hub
- area
- acute
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
- B21H1/04—Making articles shaped as bodies of revolution discs; disc wheels with rim, e.g. railways wheels or pulleys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
Definitions
- the invention relates on the one hand to a method for non-cutting Forming a hub on a workpiece in which a Roll with an acute-angled separating edge to one Rotation axis rotating workpiece is fed and on Material area is branched approximately V-shaped, this Subsequent material area by at least one post-forming roller is finally formed into the hub.
- the invention relates on the other hand, a pressure rolling machine with at least one Roll with an acute-angled separating edge and with one Spinning chuck for picking up and holding the workpiece, whereby the spinning chuck can be driven to rotate relative to the roller is.
- a generic state of the art goes for example from DE 975 677 or DE 41 15 423 A1.
- an acute-angled separating edge which can also be used as a gap or Cutting roller is referred to on a flat blank a material section branched in a V-shape or cleaved. Due to the acute-angled separating edge the roller penetrate the workpiece relatively easily, so that even small forming forces to feed the nip roll are necessary. Due to the low forming forces also the material structure of both the remaining radial Workpiece area as well as the branched workpiece area not too heavily loaded. In particular the risk of microstructure formation within the workpiece structure remains low.
- a process that is more gentle on the workpiece is from the DE 198 49 981 A1 is known, in which by means of a special Forming roll a hub is formed without cutting.
- the special forming roller includes a separating edge and one immediately adjacent compression area, its External profile of the outer peripheral contour of the hub to be molded is adjusted.
- the invention has for its object to provide a method and a flow-forming machine, which is provided with a hub structure particularly friendly and economical conformable with high design freedom.
- the method according to the invention is characterized in that that the postforming roller has an axial stop surface, through which an axial extension of the V-shaped branched material area is limited.
- the process first becomes a material area by means of a roller with an acute-angled separating edge branched off, due to the acute-angled contour of Roll only low forming forces have to be applied. Due to the special contour of the roll, the forming forces introduced into the workpiece in a very targeted manner become. This protects the workpiece structure. The Risk of overstressing the structure and the The occurrence of structural cracks is significantly reduced.
- there is also a high degree of design freedom and excellent material utilization take place because through the post-forming roller the V-shaped branched material area is limited in its axial extent. With the postforming roll is thus even a thickening of the branched Material area for forming the hub possible.
- Another advantage of the invention is that the Roll with the acute-angled separating edge from a special high-strength tool steel or another particularly wear-resistant material can be manufactured. by virtue of the simple design can do this role despite the expensive and basically difficult to process material inexpensively are manufactured. Because the role on the actual Shape of the hub to be molded has no significant influence has the acute-angled roller for a variety of hub shapes can be used. A reworking of the Rolling, for example by grinding, is easily possible without that this affects the contour of the hub to be molded would be.
- the postforming roller can because of the different stress be made from a simpler material. Consequently can be an inexpensive adjustment to the process changed hub shapes easily.
- a foot radius on the hub can be chosen as desired become.
- the axial stop surface of the postforming roller on a recess is formed, through which an outer contour and an axial length of the hub to be molded is specified.
- the recess can be a convex or concave or have another profile, such as steps, grooves, etc. which is in a corresponding manner on the outer contour of the depicts the hub to be molded.
- the delivery of the postforming roll only after Completion of the formation of the V-shaped branched area he follows.
- the post-forming roller on the V-shaped branched material area is delivered even before the roller with the acute-angled separating edge its end position has reached.
- delivery takes place the postforming roll for a certain period of time offset, so that by the re-forming the split off or Branch of the V-shaped material area is not hindered becomes.
- Another advantageous process variant consists in that the hub between the re-forming roller and a tool mandrel is formed.
- the outer contour of the tool mandrel can be cylindrical or with a convex or concave profile, for example with teeth or circumferential grooves be provided.
- the workpiece can be attached to the chuck in any way held along its circumference or at the edge his. According to the invention, however, it is preferred that Workpiece is held in its central area.
- the holding can be done by a so-called counter-holder, which centered in the workpiece and its outer area at the same time forms the tool mandrel.
- the roller is usually on one essentially radially extending workpiece area delivered.
- the role with the acute-angled Separating edge is fed radially and axially at the same time becomes.
- a hub is characterized in that a radial outer workpiece area axially into a recess of a Spinning chuck is pressed so that a radially inner The workpiece area protrudes axially by a defined amount, that on the protruding inner workpiece area a role is delivered, through which a wall thickness of the inner workpiece area is reduced, and that workpiece material is formed into the hub.
- This method according to the invention can then be used come when not molding the whole of a hub Material of a sheet metal blank or a radial workpiece area is required for material acceptance.
- This method according to the invention can in particular with a roll with an acute-angled separating edge and the subsequent delivery of a postforming roll in accordance with the previously described Procedures are used.
- the radial inner, protruding workpiece area can also be used another known forming roll for non-cutting shaping a hub can be reduced in its workpiece thickness.
- a preferred one Possibility according to the invention is that Pressing the outer workpiece area extends it radially and against an annular shoulder on the spinning chuck shaped and clamped. The workpiece would, so to speak non-positively and / or positively pressed into a ring shape will be, after the completion of the processing Workpiece ejected by an ejector on the chuck becomes.
- the invention is characterized in that in addition a post-forming roll is provided with an axial stop surface and that the postforming roll is offset in time and space from the roll is adjustable with the acute-angled separating edge.
- a circular-shaped workpiece 1 is on one
- the chuck 15 is arranged with a support surface and by means of a tool mandrel 16, which also serves as a counter-holder serves axially clamped.
- a tool mandrel 16 which also serves as a counter-holder serves axially clamped.
- Roll 10 To the free edge of the a workpiece 1 rotating about an axis of rotation 14 Roll 10 with an acute-angled separating edge 12 radially delivered at an acute angle of attack.
- a material area 3 split off in cross section approximately V-shaped becomes.
- this splitting with the roll 10 remains the workpiece structure in the branched material area 3 and especially in the reduced radial wall area 4 largely unchanged.
- the axial stop surface 22 limits the axial extension of the V-shaped branch Material area 3.
- the spatially and temporally offset delivery of the roller 10 to the post-forming roller 20 on the workpiece 1 is shown schematically in FIG. 2.
- the roller 10 and the Nachformrolle 20 are mounted on a single flow-forming machine, wherein the feed axes offset by 120 o are disposed around the axis of rotation.
- a further infeed axis 9 which is also offset by 120, for example a further post-forming roller can be provided. This can specify a calibration process or a special foot radius at the transition of the hub 5 to the radially extending area of the workpiece 1.
- FIGS. 3a to 3c A method alternative is shown in FIGS. 3a to 3c, in contrast to the method according to FIG. 1 the roller 10 with the acute-angled separating edge 12 is not only radially, but also axially at the workpiece 1 is delivered. In this way, the remaining radial workpiece area 4, which is oriented toward the axis of rotation 14 tapered wall thickness set. Such a wall thickness curve can be used for gear parts with a desired special flexibility.
- FIGS. 4a to 4c The further process variant according to FIGS. 4a to 4c is also based on the previously described embodiments, in contrast to the embodiment of 1 shows the roller 10 with the acute-angled separating edge 12 not at the edge, but in a middle area of the circular workpiece 1 according to FIG. 4a.
- the roll 10 is first corresponding in the cutting direction the acute-angled separating edge retracted into the workpiece 1, in order to impair the structure of the workpiece To avoid workpiece 1 as far as possible.
- the direction of displacement runs vertically to the axis of rotation 11 of the roller 10 and is shown schematically by an arrow in FIG. 4b.
- the further delivery of the roll 10 takes place as in the Embodiment of Fig. 1 in the radial direction, wherein subsequently the postforming roll in the manner already described 20 for final shaping of the hub 5 is delivered.
- the postforming roller can 20 of the thinned, radial workpiece area 4 be slightly spaced axially.
- the foot radius at the transition between the hub 5 and the radial workpiece area 4 can by the roller 10 or a separate shaping roller respectively.
- the forming forces can largely evenly on the branching off of the material area 3 through the roller 10 with the acute-angled separating edge 12 and on one or more post-forming rollers 20 for Forming and final shaping of the hub area 5 from the V-shaped branch Material area 3 can be distributed. It can therefore worked with lower overall maximum forming forces be what is gentle on both the workpiece and is the pressure rolling machine. The wear and the maintenance effort and the energy required to deliver the rolls are reduced. Because of the lower overall load of tools there is also the possibility of To increase the forming speed and thus the production time to shorten each workpiece.
- FIGS. 5a to 5e Another aspect of the invention is in FIGS. 5a to 5e shown.
- a disc-shaped workpiece 1 is on a Pressure chuck 15 clamped by means of a tool mandrel 16, which at the same time acts as a counterhold to the center axially pressing the workpiece 1 against the chuck 15 serves.
- a pressure roller which is the postforming roller 20 in the present case outer workpiece area 6 in an annular recess 18 pressed in pressure chuck 15, as shown in Fig. 5b. It arises such a set back radially outer workpiece area 6 and an inner projecting workpiece area 7.
- this method a workpiece 1 with a hub 5 and an outer Workpiece area 6 created with a wall thickening, wherein however, the machined face is flat.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
- Fig. 1
- eine erste Ausführungsform des erfindungsgemäßen Verfahrens in drei unterschiedlichen Verahrensstadien in einer stark schematisierten Teilquerschnittsansicht;
- Fig. 2
- eine schematische Anordnung der Umformrollen bei dem erfindungsgemäßen Verfahren;
- Fig. 3
- eine weitere Ausführungsform eines erfindungsgemäßen Verfahrens in drei Verfahrensstadien gemäß der Ansichtsform von Fig. 1;
- Fig. 4
- eine weitere Ausführungsform des erfindungsgemäßen Verfahrens in drei Verfahrensstadien gemäß der Ansichtsform von Fig. 1; und
- Fig. 5
- ein weiteres erfindungsgemäßes Verfahren in fünf Verfahrensstadien in einer stark schematisierten Teilquerschnittsansicht.
Claims (11)
- Verfahren zum spanlosen Anformen einer Nabe (5) an einem Werkstück (1), bei dem eine Rolle (10) mit einer spitzwinkeligen Trennkante (12) an das um eine Rotationsachse (14) rotierende Werkstück (1) zugestellt und ein Materialbereich (3) etwa V-förmig abgezweigt wird, wobei dieser Materialbereich (3) nachfolgend durch mindestens eine Nachformrolle (20) zu der Nabe (5) endgeformt wird,
dadurch gekennzeichnet, dass die Nachformrolle (20) eine axiale Anschlagsfläche (22) aufweist, durch welche eine axiale Erstreckung des V-förmig abgezweigten Materialbereiches (3) begrenzt wird. - Verfahren nach Anspruch 1,
dadurch gekennzeichnet, dass die axiale Anschlagsfläche (22) der Nachformrolle (20) an einer Ausnehmung (24) ausgebildet ist, durch welche eine Außenkontur und eine axiale Länge der anzuformenden Nabe (5) vorgegeben wird. - Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet, dass die Rolle (10) mit der spitzwinkeligen Trennkante (12) von einer Ausgangsposition an dem Werkstück (1) bis zu einer Endposition zugestellt wird, an welcher die Nabe (5) an dem Werkstück (1) axial vorspringt. - Verfahren nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass die Nachformrolle (20) an den V-förmig abgezweigten Materialbereich (3) zugestellt wird, noch bevor die Rolle (10) mit der spitzwinkligen Trennkante (12) ihre Endposition erreicht hat. - Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet, dass die Nabe (5) zwischen der Nachformrolle (20) und einem mittigen Werkzeugdorn (16) ausgeformt wird. - Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet, dass das Werkstück (1) in seinem Mittenbereich gehalten wird. - Verfahren nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet, dass die Rolle (10) mit der spitzwinkligen Trennkante (12) radial und gleichzeitig axial zugestellt wird. - Verfahren zum spanlosen Anformen einer Nabe, insbesondere nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet,dass ein radial äußerer Werkstückbereich (6) axial in eine Vertiefung (18) eines Drückfutters (15) gedrückt wird, so dass ein radial innerer Werkstückbereich (7) um einen definierten Betrag axial vorsteht,dass an dem vorstehenden inneren Werkstückbereich (7) eine Rolle (10) zugestellt wird, durch welche eine Wanddicke des inneren Werkstückbereiches (7) verringert wird, unddass das dabei anfallende Werkstückmaterial zur Nabe (5) geformt wird. - Verfahren nach Anspruch 8,
dadurch gekennzeichnet, dass der vorstehende innere Werkstückbereich (7) in seiner Wanddicke um den Betrag verringert wird, um welchen dieser axial gegenüber dem gedrückten äußeren Werkstückbereich (6) vorsteht. - Verfahren nach Anspruch 8 oder 9,
dadurch gekennzeichnet, dass beim Drücken des äußeren Werkstückbereiches (6) dieser radial erweitert und gegen einen ringförmigen Absatz an dem Drückfutter (15) geformt und dabei eingespannt wird. - Drückwalzmaschine, insbesondere zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 10,
mit mindestens einer Rolle (10) mit einer spitzwinkeligen Trennkante (12) und mit einem Drückfutter (15) zum Aufnehmen und Halten des Werkstücks (1), wobei das Drückfutter (15) relativ zu der Rolle (10) rotierend antreibbar ist,
dadurch gekennzeichnet,dass zusätzlich eine Nachformrolle (20) mit einer axialen Anschlagsfläche (22) vorgesehen ist unddass die Nachformrolle (20) räumlich und zeitlich versetzt zur Rolle (10) mit der spitzwinkligen Trennkante (12) zustellbar ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50200600T DE50200600D1 (de) | 2002-04-30 | 2002-04-30 | Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe |
EP20020009798 EP1362652B1 (de) | 2002-04-30 | 2002-04-30 | Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20020009798 EP1362652B1 (de) | 2002-04-30 | 2002-04-30 | Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1362652A1 true EP1362652A1 (de) | 2003-11-19 |
EP1362652B1 EP1362652B1 (de) | 2004-07-07 |
Family
ID=29265905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20020009798 Expired - Lifetime EP1362652B1 (de) | 2002-04-30 | 2002-04-30 | Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1362652B1 (de) |
DE (1) | DE50200600D1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019525841A (ja) * | 2016-08-03 | 2019-09-12 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | 圧着プレートユニットを製造する方法、圧着プレートユニットおよび摩擦クラッチ |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19603773A1 (de) * | 1996-02-02 | 1996-08-08 | Leifeld Gmbh & Co | Verfahren zum Herstellen rotationssymmetrischer Körper mit Nabe |
US5829291A (en) * | 1996-05-17 | 1998-11-03 | Kojima Press Industry Co., Ltd. | Apparatus and process for forming metal member including bases portion and cylindrical portion formed on outer surface of the base portion such that the cylindrical portion is integral with the base portion |
DE19849981A1 (de) * | 1998-10-29 | 1999-04-15 | Leico Werkzeugmaschb Gmbh & Co | Verfahren zum Formen einer Nabenscheibe und Drückrolle zur Verwendung beim Formen einer Nabenscheibe |
JPH11169986A (ja) * | 1997-10-08 | 1999-06-29 | Kojima Press Co Ltd | 円筒部が同心的に一体形成されてなる金属製品の成形装置並びにかかる金属製品の成形方法 |
WO2001066278A1 (fr) * | 2000-03-10 | 2001-09-13 | Kanemitsu Corporation | Procede de refendage, dispositif de refendage et procede de fabrication d'un patin de frein en tole par refendage |
DE10121546A1 (de) * | 2001-05-03 | 2001-11-29 | Leico Werkzeugmaschb Gmbh & Co | Verfahren und Drückrolle zum Anformen einer Nabe |
-
2002
- 2002-04-30 EP EP20020009798 patent/EP1362652B1/de not_active Expired - Lifetime
- 2002-04-30 DE DE50200600T patent/DE50200600D1/de not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19603773A1 (de) * | 1996-02-02 | 1996-08-08 | Leifeld Gmbh & Co | Verfahren zum Herstellen rotationssymmetrischer Körper mit Nabe |
US5829291A (en) * | 1996-05-17 | 1998-11-03 | Kojima Press Industry Co., Ltd. | Apparatus and process for forming metal member including bases portion and cylindrical portion formed on outer surface of the base portion such that the cylindrical portion is integral with the base portion |
JPH11169986A (ja) * | 1997-10-08 | 1999-06-29 | Kojima Press Co Ltd | 円筒部が同心的に一体形成されてなる金属製品の成形装置並びにかかる金属製品の成形方法 |
DE19849981A1 (de) * | 1998-10-29 | 1999-04-15 | Leico Werkzeugmaschb Gmbh & Co | Verfahren zum Formen einer Nabenscheibe und Drückrolle zur Verwendung beim Formen einer Nabenscheibe |
WO2001066278A1 (fr) * | 2000-03-10 | 2001-09-13 | Kanemitsu Corporation | Procede de refendage, dispositif de refendage et procede de fabrication d'un patin de frein en tole par refendage |
DE10121546A1 (de) * | 2001-05-03 | 2001-11-29 | Leico Werkzeugmaschb Gmbh & Co | Verfahren und Drückrolle zum Anformen einer Nabe |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019525841A (ja) * | 2016-08-03 | 2019-09-12 | シェフラー テクノロジーズ アー・ゲー ウント コー. カー・ゲーSchaeffler Technologies AG & Co. KG | 圧着プレートユニットを製造する方法、圧着プレートユニットおよび摩擦クラッチ |
Also Published As
Publication number | Publication date |
---|---|
EP1362652B1 (de) | 2004-07-07 |
DE50200600D1 (de) | 2004-08-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19861391B4 (de) | Verfahren zum Formen einer Nabenscheibe und Drückrolle zur Verwendung beim Formen einer Nabenscheibe | |
EP1108483B1 (de) | Verfahren und Vorrichtung zum Drückwalzen | |
DE10005578C2 (de) | Verfahren und Drückwalzvorrichtung zum Herstellen eines Hohlkörpers | |
EP0955110B1 (de) | Verfahren zum Drückwalzen und Drückwalzvorrichtung | |
DE102006011021B4 (de) | Vorrichtung und Verfahren zur Herstellung eines eine Nabe aufweisenden Formkörpers | |
DE19915027A1 (de) | Getriebeteil und Verfahren zum Formen eines Getriebeteils | |
EP0808678B1 (de) | Verfahren und Vorrichtung zum Herstellen einer Poly-V-Scheibe | |
EP1697066B1 (de) | Verfahren zur herstellung eines flansches an einer blechronde | |
DE19849981C5 (de) | Verfahren zum Formen eines scheibenförmigen Teiles mit Nabe und Drückrolle für das Verfahren | |
EP0997210B1 (de) | Verfahren zum Formen eines scheibenförmigen Teiles mit Nabe und Umformrolle für das Verfahren | |
EP3246104B1 (de) | Verfahren und vorrichtung zum herstellen eines umformteils | |
EP1362652B1 (de) | Verfahren und Drückwalzmaschine zum spanlosen Anformen einer Nabe | |
EP0917917A1 (de) | Verfahren und Vorrichtung zum Kaltumformen von Hohlteilen | |
EP3221068B1 (de) | Verfahren zur herstellung eines rotationssymmetrischen formkörpers | |
EP2711103A1 (de) | Verfahren und Vorrichtung zum Fliessdrücken von Werkstücken | |
DE19724657C2 (de) | Verfahren und Vorrichtung zum Herstellen eines rotationssymmetrischen Körpers | |
DE102010011809B4 (de) | Verfahren und Drückwalz- und Profiliermaschine zum Herstellen eines rotationssymmetrischen Werkstückes sowie Profilrolle hierfür | |
EP3023171B1 (de) | Drückwalzen von lagerringen | |
EP1382404B1 (de) | Verfahren, Rolle und Drückwalzmaschine zum spanlosen Anformen einer zylindrischen Nabe | |
DE19632279C2 (de) | Verfahren zur Herstellung eines scheibenförmigen Teiles | |
DE10121546A1 (de) | Verfahren und Drückrolle zum Anformen einer Nabe | |
EP1163961B1 (de) | Verfahren und Drückvorrichtung zur Herstellung eines Getriebeteiles | |
DE102022127255A1 (de) | Rollenhalter zum Einsatz in einer Drückwalzanlage | |
CH719776A1 (de) | Verfahren zur Herstellung von ringförmigen Formteilen. | |
DE102020103151A1 (de) | Walzwerkzeug und Verfahren zum Walzen eines Profils |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
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 |
|
17P | Request for examination filed |
Effective date: 20021220 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE |
|
RAP2 | Party data changed (patent owner data changed or rights of a patent transferred) |
Owner name: LEIFELD METAL SPINNING GMBH |
|
AKX | Designation fees paid |
Designated state(s): DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50200600 Country of ref document: DE Date of ref document: 20040812 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: 20050408 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R082 Ref document number: 50200600 Country of ref document: DE Representative=s name: WEBER & HEIM PATENTANWAELTE, DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R081 Ref document number: 50200600 Country of ref document: DE Owner name: LEIFELD METAL SPINNING AG, DE Free format text: FORMER OWNER: LEIFELD METAL SPINNING GMBH, 59229 AHLEN, DE Effective date: 20120514 Ref country code: DE Ref legal event code: R082 Ref document number: 50200600 Country of ref document: DE Representative=s name: WEBER & HEIM PATENTANWAELTE, DE Effective date: 20120514 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20130429 Year of fee payment: 12 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50200600 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 50200600 Country of ref document: DE Effective date: 20141101 |
|
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: 20141101 |