WO2004027286A2 - Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter, insbesondere eines kugelgewindetriebes - Google Patents
Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter, insbesondere eines kugelgewindetriebes Download PDFInfo
- Publication number
- WO2004027286A2 WO2004027286A2 PCT/EP2003/009508 EP0309508W WO2004027286A2 WO 2004027286 A2 WO2004027286 A2 WO 2004027286A2 EP 0309508 W EP0309508 W EP 0309508W WO 2004027286 A2 WO2004027286 A2 WO 2004027286A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- spindle nut
- opening
- ball screw
- radially
- punch
- Prior art date
Links
Classifications
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
- B21D28/285—Perforating, i.e. punching holes in tubes or other hollow bodies punching outwards
-
- 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
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/32—Perforating, i.e. punching holes in other articles of special shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
- F16H25/2214—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls with elements for guiding the circulating balls
- F16H25/2223—Cross over deflectors between adjacent thread turns, e.g. S-form deflectors connecting neighbouring threads
-
- 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
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19702—Screw and nut
- Y10T74/19744—Rolling element engaging thread
- Y10T74/19749—Recirculating rolling elements
-
- 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
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19702—Screw and nut
- Y10T74/19744—Rolling element engaging thread
- Y10T74/19749—Recirculating rolling elements
- Y10T74/19767—Return path geometry
-
- 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
- Y10T74/19—Gearing
- Y10T74/19642—Directly cooperating gears
- Y10T74/19698—Spiral
- Y10T74/19702—Screw and nut
- Y10T74/19744—Rolling element engaging thread
- Y10T74/19749—Recirculating rolling elements
- Y10T74/19767—Return path geometry
- Y10T74/19772—Rolling element deflector
Definitions
- the present invention relates to a method for producing a spindle nut, in particular a ball screw drive and a ball screw drive.
- a ball screw drive with a spindle and a nut surrounding it, and with balls arranged in between, which are in one on the outer.
- Surface of the spindle formed thread groove and are arranged in a corresponding thread groove formed on the inner surface of the nut rollable.
- radial through openings are provided on the nut, into which deflection pieces are inserted for the return of the balls from an outlet end of a common turn of the thread grooves to an inlet end of this turn.
- the nut is designed as a one-piece sleeve with a circular cylindrical jacket and each deflection piece used is arranged completely inside the outer jacket in the corresponding through opening of the nut.
- the through openings are usually machined.
- burrs can occur at the edge of the through opening, which are not only annoying, but which also impair the perfect functioning of the ball screw drive.
- a burr can lead to considerable problems, especially where the edge of the through opening merges into the threaded groove of the spindle nut.
- the object of the present invention is to provide a method for producing a spindle nut in which this disadvantage is avoided.
- this object is achieved in that a punch located inside the spindle nut punches the through opening from radially inside to radially outside through the jacket of the spindle nut.
- Punching out from the inside offers decisive advantages.
- the punch feed is used in a particularly favorable manner so that it is formed on the radially inner edge of the through opening. This means that in particular the edge in the transition from the through opening to the threaded groove of the spindle nut is a slight convex curve. This in turn had the result that it is ensured that no undesirable burr can be formed in the area of the ball circulation, in particular in the transition from the through opening to the thread groove.
- Another advantage of the method according to the invention is that the cut portion of the punching process is formed radially on the inside of the wall of the through opening.
- the proportion of cuts that can be seen on the workpiece enables exact dimensioning of the through hole to be punched out.
- the deflection piece can be correctly positioned in the through opening and can be inserted radially on the inside.
- the part of the punching process that is torn out is formed radially on the outside on the outside of the spindle nut in the case of punching, and presents itself as a slightly conical enlargement the conical extension, the deflection piece can be easily inserted into the through opening from the radially outside.
- the punch preferably comprises a threaded mandrel, the thread profile of which is designed as a negative profile to an internal thread of the spindle nut which forms a thread groove for balls, the punch being arranged so as to be radially displaceable in the threaded mandrel, and wherein the spindle nut is arranged on the threaded mandrel, after which the punch is moved radially outward from the mandrel.
- the fact that the spindle nut is arranged on the mandrel before the punching process enables the punch to be positioned exactly with respect to the spindle nut. This means that even if several punches provided in the threaded mandrel are used, after the spindle nut has been positioned on the threaded mandrel, the through openings are punched at exactly the intended locations.
- the edge of the through opening lying on the inner circumference of the spindle nut has a convex curvature.
- this convex rounding is the result of a punching process from radially inward to radially outward, the punching-in inducing this rounding according to the invention.
- other methods may also be provided to achieve this convex rounding.
- this convex rounding in any case ensures that no undesired burr can be formed in the transition region from the thread groove of the spindle nut and the through opening.
- Figure 1 is a perspective view of an inventive
- FIG. 2 shows a cross section through the spindle nut according to the invention from FIG. 1,
- FIG. 3 shows an enlarged detail of the spindle nut according to the invention from FIG. 2,
- Figure 4 shows a method for producing the invention
- Figure 5 shows a ball screw drive according to the invention in a simplified representation.
- the ball screw drive according to the invention shown in FIG. 4 comprises a spindle nut 2 arranged on a spindle 1 as well as balls 3, which are only shown in broken lines here.
- the balls 3 can roll on a threaded path 4.
- the threaded path 4 comprises a threaded groove 5 formed on the spindle 1 and a threaded groove 6 formed on the spindle nut 2.
- the spindle nut 1 is provided with a plurality of receptacles 7 arranged around the circumference for receiving deflection pieces 8.
- Each deflection piece 8 comprises a deflection channel 9 for the return of the balls 3 each from an outlet end 10 to an inlet end 11 of at least one common turn 12 of the thread path 4.
- FIG. 1 shows as an individual part a spindle nut 2 according to the invention with through openings 7 punched out radially from the inside to the outside.
- FIG. 3 shows the wall 13 of the through opening 7 in an enlarged representation.
- the edge 14 of the through opening 7 lying on the inner circumference of the spindle nut 2 has a convex curve 15 in the transition to the thread path 4 and in particular to the thread groove 5 of the spindle nut 2.
- the part 16 of the wall 13 adjoining the edge 14 is cylindrical or elongated with wall sections parallel to one another.
- the adjoining part 17 of the wall 13 is slightly tapered.
- FIG. 4 shows a method for producing the spindle nut 2 according to the invention described above, in particular the production of the through opening 7, as is shown in greatly enlarged form in FIG. 3.
- a punching tool which comprises a threaded mandrel 18 and one or more punches 19 arranged in the threaded mandrel 18.
- the thread dome 18 has a thread profile 20 which is designed as a negative profile to the thread groove 5 of the spindle nut 2.
- the punch 19 is arranged radially displaceably in the threaded mandrel 18.
- the punching tool further comprises a die 21, which is provided with an opening 22 for receiving punched-out material of the spindle nut 2 and the punch 19.
- the punch or punches 19 are displaced radially outward, material being punched out of the spindle nut 2.
- the punching in on the workpiece that usually occurs during punching processes is shown here as the convex rounding 15 on the inner edge 14 of the through opening 7, which was already described above.
- the cut portion adjoins the radially inner edge , which was already referred to above as part 16 of the wall 13.
- part 16 of the wall 13 This is followed by the part of the tear-out which is also formed as a result of the punching process and which was already referred to above as the conical part 17 of the wall 13.
- the convex rounding 15 has the advantage that no undesirable burr is formed on the threaded path 4 or the threaded groove 5 of the spindle nut 2 in the transition to the through opening 7.
- the part 16 of the wall 13 in the present case is the cut part of the punching process. This cut portion can be manufactured with high precision, so that the deflection piece 8 can be inserted exactly into the through opening 7.
- the conical widening of the through opening 7 as a result of the conical part 17 of the wall 13 enables the deflection piece 8 to be inserted without problems from the radial outside.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Forging (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/528,271 US7536929B2 (en) | 2002-09-17 | 2003-08-28 | Ball screw and method for producing a spindle nut, in particular of a ball screw |
DE50313642T DE50313642D1 (de) | 2002-09-17 | 2003-08-28 | Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter eines kugelgewindetriebes |
JP2004536961A JP2005539181A (ja) | 2002-09-17 | 2003-08-28 | ボールねじ、及び、スピンドルナット、特にボールねじのスピンドルナットを製造する方法 |
AU2003285282A AU2003285282A1 (en) | 2002-09-17 | 2003-08-28 | Ball screw and method for production of a ball screw nut, in particular for a ball screw |
EP03778266A EP1540207B1 (de) | 2002-09-17 | 2003-08-28 | Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter eines kugelgewindetriebes |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10243020A DE10243020A1 (de) | 2002-09-17 | 2002-09-17 | Kugelgewindetrieb und Verfahren zum Herstellen einer Spindelmutter, insbesondere eines Kugelgewindetriebes |
DE10243020.9 | 2002-09-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004027286A2 true WO2004027286A2 (de) | 2004-04-01 |
WO2004027286A3 WO2004027286A3 (de) | 2004-10-14 |
Family
ID=31896069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/009508 WO2004027286A2 (de) | 2002-09-17 | 2003-08-28 | Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter, insbesondere eines kugelgewindetriebes |
Country Status (6)
Country | Link |
---|---|
US (1) | US7536929B2 (de) |
EP (1) | EP1540207B1 (de) |
JP (1) | JP2005539181A (de) |
AU (1) | AU2003285282A1 (de) |
DE (2) | DE10243020A1 (de) |
WO (1) | WO2004027286A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11473657B2 (en) | 2020-03-25 | 2022-10-18 | Sfs Intec Holding Ag | Ball screw, spindle nut and method for producing a spindle nut |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004004145B3 (de) * | 2004-01-28 | 2005-09-29 | Neff Antriebstechnik Automation Gmbh | Verfahren zur Herstellung einer Spindelmutter mit Gangumlenkung für einen Kugelgewindetrieb und Kugelgewindetrieb mit Gangumlenkung |
DE102004025683A1 (de) * | 2004-05-26 | 2005-12-15 | Ina-Schaeffler Kg | Spindelmutter für einen Kugelgewindetrieb |
DE102009050802A1 (de) | 2009-10-27 | 2011-04-28 | Volkswagen Ag | Kugelgewindemutter |
US20120325036A1 (en) * | 2010-03-17 | 2012-12-27 | Nsk Ltd. | Ball Screw and Manufacturing Method of Nut for Ball Screw |
KR101052303B1 (ko) | 2011-03-17 | 2011-07-27 | 주식회사 킴텍 | 볼 스크루 너트의 홀 가공장치 |
FR2980254B1 (fr) * | 2011-09-21 | 2014-05-23 | Skf Ab | Systeme de vis a billes muni d'un moyen de retenue d'un element de deviation des billes |
DE102017118505B4 (de) | 2017-08-14 | 2019-09-12 | PHOENIX FEINBAU GmbH & Co. KG | Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement |
BE1025471B1 (de) | 2017-08-14 | 2019-03-18 | PHOENIX FEINBAU GmbH & Co. KG | Verfahren zur Herstellung eines Aktivelements und entsprechendes Aktivelement |
CN110038959B (zh) * | 2019-04-26 | 2020-07-17 | 张家港保税区亚鑫精密制管有限公司 | Cdc减振器中筒加工工艺 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19944875A1 (de) | 1999-09-18 | 2001-03-22 | Schaeffler Waelzlager Ohg | Kugelgewindetrieb |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2204271A5 (de) * | 1972-10-20 | 1974-05-17 | Tech Integrale S | |
DE2805141C2 (de) * | 1978-02-07 | 1982-05-27 | Deutsche Star Kugelhalter Gmbh, 8720 Schweinfurt | Kugelschraubtrieb |
IT1153555B (it) * | 1982-08-19 | 1987-01-14 | Scaravella Alfredo Mec | Dato con elemento di scambio perfezionato per viti a circolazione di sfere |
DE4131486C2 (de) * | 1991-09-21 | 1999-10-21 | Schaeffler Waelzlager Ohg | Kugelgewindetrieb |
DE4225836A1 (de) * | 1992-08-05 | 1994-02-10 | Heinrich Gerdes | Lochstanze |
DE19652181A1 (de) | 1996-12-14 | 1998-06-18 | Schaeffler Waelzlager Ohg | Vorrichtung zur Umwandlung einer Drehbewegung in eine geradlinige Bewegung |
JP4230020B2 (ja) | 1998-09-11 | 2009-02-25 | Thk株式会社 | ボールねじナット、該ボールねじナットを使用した直線案内装置及びステアリング用ボールねじ並びにボールねじナットの製造方法 |
US6681651B2 (en) | 2000-07-18 | 2004-01-27 | Thk Co., Ltd. | Ball screw |
DE10062982A1 (de) | 2000-12-16 | 2002-06-20 | Ina Schaeffler Kg | Kugelgewindetrieb |
JP2004003600A (ja) * | 2002-03-26 | 2004-01-08 | Nsk Ltd | ボールねじ |
-
2002
- 2002-09-17 DE DE10243020A patent/DE10243020A1/de not_active Withdrawn
-
2003
- 2003-08-28 JP JP2004536961A patent/JP2005539181A/ja active Pending
- 2003-08-28 DE DE50313642T patent/DE50313642D1/de not_active Expired - Lifetime
- 2003-08-28 EP EP03778266A patent/EP1540207B1/de not_active Expired - Lifetime
- 2003-08-28 AU AU2003285282A patent/AU2003285282A1/en not_active Abandoned
- 2003-08-28 US US10/528,271 patent/US7536929B2/en not_active Expired - Fee Related
- 2003-08-28 WO PCT/EP2003/009508 patent/WO2004027286A2/de active Application Filing
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19944875A1 (de) | 1999-09-18 | 2001-03-22 | Schaeffler Waelzlager Ohg | Kugelgewindetrieb |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11473657B2 (en) | 2020-03-25 | 2022-10-18 | Sfs Intec Holding Ag | Ball screw, spindle nut and method for producing a spindle nut |
Also Published As
Publication number | Publication date |
---|---|
EP1540207B1 (de) | 2011-04-20 |
US20050257636A1 (en) | 2005-11-24 |
JP2005539181A (ja) | 2005-12-22 |
DE10243020A1 (de) | 2004-03-25 |
AU2003285282A8 (en) | 2004-04-08 |
EP1540207A2 (de) | 2005-06-15 |
US7536929B2 (en) | 2009-05-26 |
AU2003285282A1 (en) | 2004-04-08 |
WO2004027286A3 (de) | 2004-10-14 |
DE50313642D1 (de) | 2011-06-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1963690B1 (de) | Schraubmutter, verfahren zu ihrer herstellung und wekzeug dafür | |
DE4307090B4 (de) | Mutter, insbesondere Radmutter | |
DE19902461A1 (de) | Mutter mit T-förmigem Querschnitt | |
DE69327466T2 (de) | Schlauchkupplung und klemmhülse dafür sowie herstellungsverfahren | |
DE102004033772A1 (de) | Werkzeug, insbesondere Gewindefurcher, ausgebildet und bestimmt zur spanlosen Fertigerzeugung eines vorerzeugten Gewindes, Verfahren zur Herstellung eines derartigen Werkzeugs und Verfahren zur Erzeugung eines Gewindes | |
EP1231390B1 (de) | Verbindungselement mit einer Schraube und einem daran unverlierbar angeordneten Stützelement | |
EP3655669B1 (de) | Holzschraube | |
DE202009014886U1 (de) | Kugelzapfen | |
EP2809471B1 (de) | Werkzeug zur spanlosen erzeugung oder nachbearbeitung eines gewindes an einem werkstück, insbesondere gewindefurcher oder gewindeformer | |
EP0408492B1 (de) | Schraubenmutter | |
EP1540207B1 (de) | Kugelgewindetrieb und verfahren zum herstellen einer spindelmutter eines kugelgewindetriebes | |
DE102013112123B4 (de) | Metallhülse und Verfahren zu deren Herstellung | |
DE102013111728B4 (de) | Verfahren zur Herstellung des Gewindes einer Mutter eines Schraube-Mutter-Systems | |
DE102013203150A1 (de) | Verfahren zum Herstellen einer Betonschraube | |
EP1591676B1 (de) | Einpressmutter | |
DE4344382A1 (de) | Verfahren zur Herstellung einer Spreizhülse eines Spreizdübels | |
DE4108771A1 (de) | Spanplattenschraube | |
EP0639415B1 (de) | Verfahren zum Herstellen eines rotationssymmetrischen Körpers | |
EP2271449B1 (de) | Schraubmutter, verfahren und werkzeug zu iherer herstellung | |
EP1892427B1 (de) | Befestigungselement und Verfahren zur Anbringung dieses Befestigungselements an einem Blechbauteil | |
EP4083451B1 (de) | Selbststanzendes funktionselement, zusammenbauteil und verfahren zum herstellen eines zusammenbauteils | |
DE3215547C2 (de) | ||
DE102010039671A1 (de) | Befestigungselement | |
DE10343930B4 (de) | Bauteil mit einem eingepressten Einpresselement sowie Einpresselement und Verfahren zum Einpressen eines Einpresselements | |
DE102015116444A1 (de) | Nuterzeugungswerkzeug |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A2 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A2 Designated state(s): GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2003778266 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004536961 Country of ref document: JP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10528271 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 2003778266 Country of ref document: EP |