EP1119426B1 - Tool for producing a gear part having external toothing - Google Patents
Tool for producing a gear part having external toothing Download PDFInfo
- Publication number
- EP1119426B1 EP1119426B1 EP99914413A EP99914413A EP1119426B1 EP 1119426 B1 EP1119426 B1 EP 1119426B1 EP 99914413 A EP99914413 A EP 99914413A EP 99914413 A EP99914413 A EP 99914413A EP 1119426 B1 EP1119426 B1 EP 1119426B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- workpiece
- axis
- forming region
- form roller
- 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.)
- Expired - Lifetime
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
- B21H5/00—Making gear wheels, racks, spline shafts or worms
- B21H5/02—Making gear wheels, racks, spline shafts or worms with cylindrical outline, e.g. by means of die rolls
-
- 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
- B21D53/28—Making other particular articles wheels or the like gear wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/28—Making machine elements wheels; discs
- B21K1/30—Making machine elements wheels; discs with gear-teeth
-
- 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
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49462—Gear making
- Y10T29/49467—Gear shaping
- Y10T29/49471—Roll forming
Definitions
- the invention relates to a tool for producing a externally toothed gear part according to the preamble of the main claim.
- a generic tool is in DE 196 13 457 C1 described. With this known arrangement it is necessary that the forming roll having several forming areas not just one movement in the direction of each forming area the Y-axis, but - because the head circle of the individual Forming areas is increasing - the tool must be used by everyone Movement in the direction of the Y-Y axis also perpendicular to Y-Y axis, i.e. H. So be moved back radially so that the next forming area in the preformed tooth area of the Workpiece can intervene.
- the material displaced by the tool displaces the workpiece into the space of the tooth to be formed, d. H. so in the Space that exists between the teeth of the tool.
- This can unfold or uncontrolled deposition of the displaced material in the workpiece enter the space of the tool and thus within the tooth to be formed, which means that the tooth formed in the workpiece is difficult to control can have, for example folds or overlaps, that affect the stability of the tooth of the tool to be manufactured can.
- the invention has for its object by an appropriately trained Tool to enable a manufacturing process that involves an uncontrolled
- the displaced material does not flow in the area of the tooth to be formed, also an additional movement of the previously required in the prior art Form roll avoids and a quick and inexpensive manufacture of an outside toothed gear part makes possible.
- This object of the invention is based on the teaching of the main claim solved.
- the material of the workpiece displaced by the teeth of the tool flows in the arrangement according to the invention to the outside and can here after completion of the Gear can be removed by appropriate material processing.
- the form roller is freely rotatable according to the invention and thus fits without Difficulties and gear coupling with the drive of the tool the teeth to be formed.
- At least A limiting device is provided in the edge area of the workpiece, which is preferably formed by two interacting pressure rollers, which the Hold outflowing material between them, shape and limit if necessary.
- the circumferential area of the workpiece to be formed is optimized, for example is concave inwards or recessed inwards via straight surfaces is so that only so much material is present in the peripheral area of the workpiece is how it is required for the formation of the actual tooth.
- a pick-up tool 1 that revolves around an axis X-X.
- a workpiece 3 or blank is made by a setter 2 on the recording tool 1 set.
- a Form roller 4 is z. B. from four individual forming areas 4a, 4b, 4c and 4d, this form roller 4 about an axis Y-Y can circulate and is freely rotatable.
- the receiving tool 1 is driven in rotation and preferably in a reciprocating, revolving movement, which can be, for example, 180 ° or 120 °.
- the forming area 4a set with respect to the radial outer edge of the workpiece 3 and then delivered to the workpiece 3 and thereby the tooth area 5a with the outer edge of the workpiece 3 in Brought into contact and formed a recess by pressing. Then the workpiece 3 or blank is rotated.
- the form roller 4 is then turned in the direction of its Y axis a forming area further adjusted so that the tooth area 5b of the forming area 4b with the workpiece 3 in Can be brought in contact. This then forms an opposite the previous tooth area deepened tooth area.
- the last recess formed by the forming area 4d in workpiece 3 is labeled 6d in FIG. 2.
- limiting devices 7 and 8 provided in the illustration out of engagement with the peripheral portion 11 of the Workpiece 3, e.g. B. a round blank are shown, but at Carrying out the working process in this range stand.
- Each limiting device 7 or 8 has pressure rollers 9 and 10, which is now an uncontrolled flow of prevent material displaced from the teeth, for example 5a.
- Fig. 5 shows the peripheral area in section of the workpiece 3, which is used to optimize the flowing Material has a concave curvature 12, while according Fig. 6 this optimization by straight cuts or Recesses 14 is reached.
Description
Die Erfindung bezieht sich auf ein Werkzeug zur Herstellung eines außen verzahnten Getriebeteiles gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a tool for producing a externally toothed gear part according to the preamble of the main claim.
Im nachfolgenden wird unter "Werkstück" das zu bearbeitende bzw. teilweise bearbeitete Rohteil verstanden. Unter dem Begriff "Drücken" wird ein Verfahren der Umformtechnik verstanden, das zur Herstellung von rotationssymmetrischen Körpern unter Verwendung von Drückwerkzeugen Verwendung findet. In der Technik wird neuerungsdings für dieses Verfahren auch der Begriff "Rollformen" oder "Drückwalzen" verwendet.In the following, the part to be machined is listed under "Workpiece" or partially machined raw part understood. Under the term "Pressing" is understood to mean a process in metal forming, that for the production of rotationally symmetrical bodies under Use of pressing tools is used. In the Technology has recently become the term for this process "Rollforming" or "spinning rollers" used.
Ein gattungsbildendes Werkzeug ist in der DE 196 13 457 C1 beschrieben. Bei dieser bekannten Anordnung ist es erforderlich, daß die mehrere Umformbereiche aufweisende Formrolle für jeden Umformbereich nicht nur eine Bewegung in Richtung der Y-Achse ausführt, sondern - da der Kopfkreis der einzelnen Umformbereiche ansteigend ist - muß das Werkzeug bei jeder Bewegung in Richtung der Y-Y-Achse auch senkrecht zur Y-Y-Achse, d. h. also radial zurückbewegt werden, damit der nächste Umformbereich in den vorgeformten Zahnbereich des Werkstückes eingreifen kann. A generic tool is in DE 196 13 457 C1 described. With this known arrangement it is necessary that the forming roll having several forming areas not just one movement in the direction of each forming area the Y-axis, but - because the head circle of the individual Forming areas is increasing - the tool must be used by everyone Movement in the direction of the Y-Y axis also perpendicular to Y-Y axis, i.e. H. So be moved back radially so that the next forming area in the preformed tooth area of the Workpiece can intervene.
Bei dem gattungsbildenden Werkzeug wird das vom Werkzeug verdrängte Material des Werkstückes in den Raum des zu bildenden Zahnes verdrängt, d. h. also in den Raum, der zwischen den Zähnen des Werkzeuges besteht. Hierdurch kann eine Auffaltung oder unkontrollierte Ablagerung des verdrängten Materials des Werkstückes in dem Raum des Werkzeuges und damit innerhalb des zu bildenden Zahnes eintreten, wodurch der so gebildete Zahn im Werkstück nur sehr schwer zu kontrollierende Materialverformungen aufweisen kann, beispielsweise Faltungen oder Überlappungen, die die Standfestigkeit des Zahnes des herzustellenden Werkzeuges beeinträchtigen können.In the generic tool, the material displaced by the tool displaces the workpiece into the space of the tooth to be formed, d. H. so in the Space that exists between the teeth of the tool. This can unfold or uncontrolled deposition of the displaced material in the workpiece enter the space of the tool and thus within the tooth to be formed, which means that the tooth formed in the workpiece is difficult to control can have, for example folds or overlaps, that affect the stability of the tooth of the tool to be manufactured can.
Der Erfindung liegt die Aufgabe zugrunde, durch ein entsprechend ausgebildetes Werkzeug ein Herstellungsverfahren zu ermöglichen, bei dem ein unkontrolliertes Fließen des verdrängten Materials im Bereich des zu bildenden Zahnes nicht eintritt, außerdem eine bisher im Stand der Technik erforderliche zusätzliche Bewegung der Formrolle vermeidet und eine schnelle und kostengünstige Herstellung eines außen verzahnten Getriebeteiles möglich macht.The invention has for its object by an appropriately trained Tool to enable a manufacturing process that involves an uncontrolled The displaced material does not flow in the area of the tooth to be formed, also an additional movement of the previously required in the prior art Form roll avoids and a quick and inexpensive manufacture of an outside toothed gear part makes possible.
Diese der Erfindung zugrundeliegende Aufgabe wird durch die Lehre des Hauptanspruches gelöst.This object of the invention is based on the teaching of the main claim solved.
Vorteilhafte Ausgestaltungen sind in den entsprechenden Unteransprüchen erläutert.Advantageous configurations are explained in the corresponding subclaims.
Mit anderen Worten ausgedrückt wird vorgeschlagen, daß der Kopfkreis des Werkzeuges über alle Umformbereiche gesehen gleich ist und daß die unterschiedliche Zahntiefe durch Veränderung des Fußkreises der Zähne des Werkzeuges erreicht wird.In other words, it is suggested that the tip circle of the tool seen across all forming areas is the same and that the different Tooth depth is achieved by changing the root circle of the teeth of the tool.
Das von den Zähnen des Werkzeuges verdrängte Material des Werkstückes fließt bei der erfindungsgemäßen Anordnung nach außen und kann hier nach Fertigstellen des Zahnrades durch entsprechende Materialbearbeitung entfernt werden. The material of the workpiece displaced by the teeth of the tool flows in the arrangement according to the invention to the outside and can here after completion of the Gear can be removed by appropriate material processing.
Die Formrolle ist gemäß der Erfindung frei drehbar gelagert und paßt sich damit ohne Schwierigkeiten und getriebemäßige Kopplung mit dem Antrieb des Aufnahmewerkzeuges den zu bildenden Zähnen an.The form roller is freely rotatable according to the invention and thus fits without Difficulties and gear coupling with the drive of the tool the teeth to be formed.
Falls dies erforderlich sein sollte, ist es natürlich möglich, einen Synchronlauf zwischen Formrolle und Aufnahmewerkzeug einzusetzen.If this should be necessary, it is of course possible to synchronize between Insert form roller and tool.
Um ein kontrolliertes Fließen des von den Zähnen des Werkzeuges verdrängten Materiales zu vermeiden, wird gemäß der Erfindung weiterhin vorgeschlagen, daß mindestens im Randbereich des Werkstückes eine Begrenzungseinrichtung vorgesehen ist, die vorzugsweise durch zwei zusammenwirkende Druckrollen gebildet wird, die das ausfließende Material zwischen sich halten, ggf. formen und begrenzen.For a controlled flow of the material displaced by the teeth of the tool To avoid, it is further proposed according to the invention that at least A limiting device is provided in the edge area of the workpiece, which is preferably formed by two interacting pressure rollers, which the Hold outflowing material between them, shape and limit if necessary.
Um überflüssiges Ausfließen von Material zu vermeiden, wird auch vorgeschlagen, daß der umzuformende Umfangsbereich des Werkstückes optimiert wird, beispielsweise konkav nach innen gewölbt ist oder über geradlinige Flächen nach innen ausgenommen ist, so daß nur soviel Material im Umfangsbereich des Werkstückes vorhanden ist, wie für die Bildung des eigentlichen Zahnes erforderlich ist.In order to avoid unnecessary leakage of material, it is also proposed that that the circumferential area of the workpiece to be formed is optimized, for example is concave inwards or recessed inwards via straight surfaces is so that only so much material is present in the peripheral area of the workpiece is how it is required for the formation of the actual tooth.
Es können auch mehrere Formrollen gleichzeitig am Werkstück zum Einsatz kommen. Hierdurch wird der durch das Drücken der Formrolle in das Werkstück hinein auftretende Druck auf das Aufnahmewerkzeug minimiert, da dieser Druck von der ggf. gegenüberliegenden Formrolle aufgenommen wird. Several form rolls can also be used at the same time are used on the workpiece. This will cause the pressing the form roll into the workpiece pressure on the tool minimized, as this pressure is absorbed by the possibly opposite forming roller becomes.
Hierbei können zwei, drei oder auch mehrere Formrollen am Umfang des Werkstückes vorgesehen werden.Here, two, three or even more form rollers on Scope of the workpiece can be provided.
Schließlich wird auch vorgeschlagen, daß das Werkstück in eine rotierende hin- und hergehende Bewegung versetzt wird, wodurch die beiden Flanken des gebildeten Zahnes gleichmäßig durch die Formrolle beaufschlagt werden, so daß hier Unterschiede in den Zahnflanken vermieden werden.Finally, it is also suggested that the Workpiece in a rotating reciprocating motion is displaced, creating the two flanks of the tooth formed be evenly applied by the form roller, so that differences in the tooth flanks are avoided here.
Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnungen erläutert.Exemplary embodiments of the invention are described below of the drawings explained.
Die Zeichnungen zeigen dabei in den
- Fig. 1 und 2
- in einer Schnittdarstellung die verschiedenen Stufen des Werkzeuges im Verhältnis zum Werkstück, in
- Fig. 3
- in einer schaubildlichen Darstellung eine Ansicht auf das Formwerkzeug, in
- Fig. 4
- in einer schaubildlichen Darstellung eine Anordnung zur Herstellung eines verzahnten Getriebeteiles mit den erfindungsgemäßen Formwerkzeugen und in den
- Fig. 5 und 6
- Umfangsbereiche des Werkstückes.
- 1 and 2
- in a sectional view the different levels of the tool in relation to the workpiece, in
- Fig. 3
- a perspective view of the mold, in
- Fig. 4
- in a diagrammatic representation an arrangement for producing a toothed gear part with the molds according to the invention and in the
- 5 and 6
- Circumferential areas of the workpiece.
In den Zeichnungen ist ein Aufnahmewerkzeug 1 gezeigt, das
um eine Achse X-X umläuft. Ein Werkstück 3 oder Rohteil wird von
einem Vorsetzer 2 am Aufnahmewerkzeug 1 festgelegt. Eine
Formrolle 4 besteht z. B. aus vier einzelnen Umformbereichen
4a, 4b, 4c und 4d, wobei diese Formrolle 4 um eine Achse Y-Y
umlaufen kann und frei drehbar gelagert ist.In the drawings, a pick-up tool 1 is shown that
revolves around an axis X-X. A
Das Aufnahmewerkzeug 1 wird umlaufend angetrieben und vorzugsweise in eine hin- und hergehende, umlaufende Bewegung, die beispielsweise 180° oder 120° betragen kann. The receiving tool 1 is driven in rotation and preferably in a reciprocating, revolving movement, which can be, for example, 180 ° or 120 °.
Zu Beginn des Arbeitsvorganges wird der Umformbereich 4a
gegenüber der radialen Außenkante des Werkstückes 3 eingestellt
und dann auf das Werkstück 3 zugestellt und dabei wird
der Zahnbereich 5a mit der Außenkante des Werkstückes 3 in
Kontakt gebracht und durch Drücken eine Ausnehmung geformt.
Danach wird das Werkstück 3 bzw. Rohteil in Drehung versetzt.At the beginning of the working process, the forming
Anschließend wird die Formrolle 4 in Richtung ihrer Y-Achse um
einen Umformbereich weiter verstellt, so daß dann der Zahnbereich
5b des Umformbereiches 4b mit dem Werkstück 3 in
Kontakt gebracht werden kann. Hierbei bildet sich dann ein gegenüber
dem vorherigen Zahnbereich vertiefter Zahnbereich.
Die letzte, durch den Umformbereich 4d gebildete Ausnehmung
in dem Werkstück 3 ist in Fig. 2 mit 6d bezeichnet.The form roller 4 is then turned in the direction of its Y axis
a forming area further adjusted so that the
Bei der in Fig. 4 dargestellten Ausführungsform sind Begrenzungseinrichtungen
7 und 8 vorgesehen, die bei der Darstellung
außerhalb des Eingriffes mit dem Umfangsbereich 11 des
Werkstückes 3, z. B. einer Ronde, dargestellt sind, aber bei
Durchführen des Arbeitsverfahrens in diesem Umfangsbereich
stehen. Jede Begrenzungseinrichtung 7 bzw. 8 weist Druckrollen
9 und 10 auf, die nunmehr ein unkontrolliertes Fließen des
von den Zähnen, beispielsweise 5a, verdrängten Materials verhindern.In the embodiment shown in Fig. 4 are limiting
Fig. 5 zeigt im Schnitt den Umfangsbereich
des Werkstückes 3, das zur Optimierung des abfließenden
Materials eine konkave Wölbung 12 aufweist, während gemäß
Fig. 6 diese Optimierung durch geradlinige Einschnitte oder
Ausnehmungen 14 erreicht wird.Fig. 5 shows the peripheral area in section
of the
Claims (3)
- Tool for producing an externally toothed gearing part by a spinning method, having a rotationally driven mounting tool (1) which is suitable for carrying the workpiece (3) acted upon by a front piece (2), and having a form roller (4) which is mounted in a carrier so as to be rotatable about an axis (Y-Y) oriented parallel to the axis (X-X) of the mounting tool (1), is adjustable in the direction of its Y-axis relative to the mounting tool (1) and is subdivided in the direction of its Y-axis into a plurality of successive forming regions (4a, 4b, 4c, 4d) with increasing tooth depth, in which case the form roller (4) can be fed in towards the workpiece (3) perpendicularly to its Y-axis, i.e. radially to the execution of the spinning method, and the tooth height of the individual forming regions (4a, 4b, 4c, 4d) increases, characterized in that the addendum circle at all the forming regions (4a-4d) of the form roller (4) is identical, the radius of the root circle of the individual forming regions (4a-4d) decreases from the first forming region (4a) to the last forming region (4d), the tooth depth increases from the first forming region (4a) to the last forming region (4d), and thus the tooth thickness at the root circle increases from the first forming region (4a) to the last forming region (4d).
- Tool according to Claim 1, characterized in that the form roller (4) is mounted in a freely rotatable manner.
- Tool according to Claim 1 or 2, characterized by at least one limiting device (7, 8) which is formed by two interacting pressure rollers (9, 10) and can be provided in the marginal region of the workpiece (3), which performs a rotating reciprocating movement.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29819979U | 1998-10-08 | ||
| DE29817979U DE29817979U1 (en) | 1998-10-08 | 1998-10-08 | Tool for producing an externally toothed gear part |
| DE29817979U | 1998-10-08 | ||
| PCT/DE1999/000387 WO2000021699A1 (en) | 1998-10-08 | 1999-02-10 | Tool for producing a gear part having external toothing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1119426A1 EP1119426A1 (en) | 2001-08-01 |
| EP1119426B1 true EP1119426B1 (en) | 2002-11-20 |
Family
ID=8063660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99914413A Expired - Lifetime EP1119426B1 (en) | 1998-10-08 | 1999-02-10 | Tool for producing a gear part having external toothing |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6470724B1 (en) |
| EP (1) | EP1119426B1 (en) |
| JP (1) | JP2002527243A (en) |
| DE (2) | DE29817979U1 (en) |
| ES (1) | ES2183537T3 (en) |
| WO (1) | WO2000021699A1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7628049B2 (en) * | 2001-06-14 | 2009-12-08 | Tulip Corporation | Method and apparatus for manufacturing a battery terminal with undercut rings |
| US6868606B2 (en) * | 2001-11-16 | 2005-03-22 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co. Kg | Method and apparatus for making a rotation-symmetrical gear member |
| JP2007526133A (en) * | 2004-03-03 | 2007-09-13 | ワイドマー、スタン・シー | Method and apparatus for patterning a bore surface |
| DE102004014863A1 (en) * | 2004-03-26 | 2005-10-13 | Wf-Maschinenbau Und Blechformtechnik Gmbh & Co Kg | Method and device for producing an externally profiled gear part |
| US7090445B2 (en) * | 2005-01-18 | 2006-08-15 | Makino, Inc. | Tool with selectively-biased member |
| US7717652B2 (en) * | 2005-01-18 | 2010-05-18 | Makino, Inc. | Tool with selectively-biased member having an adjustment feature |
| US7806635B2 (en) * | 2007-03-07 | 2010-10-05 | Makino, Inc. | Method and apparatus for producing a shaped bore |
| CN101652200B (en) * | 2007-03-19 | 2013-02-13 | 麦格纳动力系有限公司 | Method for manufacturing a toothed disc and the toothed disc manufactured thereby |
| FR2921572B1 (en) * | 2007-09-28 | 2009-12-11 | Snecma | DEVICE FOR CIRCULAR CONFORMATION OF A REVOLUTION PART, IN PARTICULAR AN EXHAUST CASE OF A TURBOMACHINE |
| DE102011011438A1 (en) * | 2011-02-16 | 2012-08-16 | Form Technology Gmbh | Method for manufacturing planetary carrier as part of planetary gear, involves engaging web star pins through recesses in web plate, and connecting star pins with web plate as reshaped pin in form-fit manner by roll forming process |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1568648A (en) * | 1926-01-05 | of detroit | ||
| US4045988A (en) * | 1976-04-14 | 1977-09-06 | Anderson-Cook Inc. | Rotary forming machine and tool |
| SU1224073A1 (en) * | 1984-11-19 | 1986-04-15 | Orlov Viktor V | Tool for shaping gear teeth profile by rolling |
| US5379620A (en) * | 1993-06-23 | 1995-01-10 | Kinefac Corporation | Apparatus and method for forming precision surfaces on shaft-like components |
| DE4335505C1 (en) * | 1993-10-19 | 1994-08-25 | Wf Maschinenbau Blechformtech | Device for producing a gear part which is toothed on the outside |
| JPH0929375A (en) * | 1995-07-20 | 1997-02-04 | Mazda Motor Corp | Method and device for roll forming |
| DE19613457C2 (en) * | 1996-04-04 | 2001-11-29 | Wf Maschinenbau Blechformtech | Device for producing an externally toothed gear part |
| JP3377974B2 (en) * | 2000-01-12 | 2003-02-17 | サムテック株式会社 | Molding method of molded article having external teeth |
-
1998
- 1998-10-08 DE DE29817979U patent/DE29817979U1/en not_active Expired - Lifetime
-
1999
- 1999-02-10 DE DE59903494T patent/DE59903494D1/en not_active Expired - Fee Related
- 1999-02-10 ES ES99914413T patent/ES2183537T3/en not_active Expired - Lifetime
- 1999-02-10 US US09/806,753 patent/US6470724B1/en not_active Expired - Fee Related
- 1999-02-10 EP EP99914413A patent/EP1119426B1/en not_active Expired - Lifetime
- 1999-02-10 WO PCT/DE1999/000387 patent/WO2000021699A1/en active IP Right Grant
- 1999-02-10 JP JP2000575651A patent/JP2002527243A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002527243A (en) | 2002-08-27 |
| DE29817979U1 (en) | 1999-01-14 |
| ES2183537T3 (en) | 2003-03-16 |
| EP1119426A1 (en) | 2001-08-01 |
| US6470724B1 (en) | 2002-10-29 |
| DE59903494D1 (en) | 2003-01-02 |
| WO2000021699A1 (en) | 2000-04-20 |
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