EP1360423A1 - Dispositif de guidage lineaire pour la transmission de couples - Google Patents
Dispositif de guidage lineaire pour la transmission de couplesInfo
- Publication number
- EP1360423A1 EP1360423A1 EP02712841A EP02712841A EP1360423A1 EP 1360423 A1 EP1360423 A1 EP 1360423A1 EP 02712841 A EP02712841 A EP 02712841A EP 02712841 A EP02712841 A EP 02712841A EP 1360423 A1 EP1360423 A1 EP 1360423A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- shaft
- bearing
- linear guide
- needle
- housing
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/16—Steering columns
- B62D1/18—Steering columns yieldable or adjustable, e.g. tiltable
- B62D1/185—Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C29/00—Bearings for parts moving only linearly
- F16C29/04—Ball or roller bearings
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D3/00—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive
- F16D3/02—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions
- F16D3/06—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement
- F16D3/065—Yielding couplings, i.e. with means permitting movement between the connected parts during the drive adapted to specific functions specially adapted to allow axial displacement by means of rolling elements
-
- 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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2326/00—Articles relating to transporting
- F16C2326/20—Land vehicles
- F16C2326/24—Steering systems, e.g. steering rods or columns
Definitions
- the invention relates to a linear guide for transmitting torques between a tubular housing rotatable about its longitudinal axis and a shaft mounted therein axially displaceably via rolling elements.
- Linear guides for transmitting torques are used in the motor vehicle sector, for example, for guiding racks or for guiding the steering spindle in a steering column. They are also used for guiding shift shafts or shift rails in the transmission.
- a linear guide is known from US 3427 656, in which in the area of a radial plane of a shaft, axial roller bearing sets, which surround the shaft and are held in a tubular housing, are supported on the shaft surface with spherically shaped running disks. Since the shaft is circular in cross section, torques of the shaft cannot be transmitted to the housing. In addition, this linear guide requires a tension screw to generate a preload on the installed bearing sets, which acts on the housing in the area of a radial slot in the housing.
- the document DE 196 19 449 A1 shows and describes a linear guide with a rod or shaft on the running surfaces of which rollers are supported, which are rotatably mounted in a carriage surrounding the shaft.
- the slide is a rectangular hollow profile with externally accessible T-slots, via which desired parts can be attached.
- holes must be drilled in the side walls of the hollow profile, in which rotary bearings, in particular ball bearings, are arranged.
- at least one roller or the rotary bearing holding it requires an adjusting device, preferably an adjusting screw, with which the roller can be adjusted against the shaft without play.
- the invention has for its object to provide an inexpensive to produce, working with an unlimited stroke linear guide, in which the influences of dimensional tolerances both of the tubular housing and the shaft axially displaceable therein are switched off and which is suitable as a steering shaft or steering column for a motor vehicle, wherein the tubular housing is designed as a steering tube and the shaft axially displaceable therein as a steering spindle.
- a plurality of axial roller bearings surrounding the shaft are arranged in two radial planes at an axial distance from one another, the axial roller bearings each having two races or running disks and one in between in the area of a radial bearing plane Rolling element set are executed, of which a running disk is completed to form a bushing and is held in the housing, the central axis of the bushing also being arranged offset parallel to a normal to the longitudinal axis of the shaft, and of which the other running disk of the axial rolling bearing is dome-shaped and is supported with its convex spherical cap surface in a surface region of the shaft.
- the object according to the invention is achieved in that a plurality of radial needle bearings surrounding the shaft are arranged in two radial planes at an axial distance from one another in the tubular housing, the radial needle bearings in each case in the area of a radial bearing plane are each designed with two races or disks and a roller body set located between them, of which a disk is completed to form a needle bushing and held in the housing, the central axis of the The needle bushing is offset or inclined parallel to a normal to the longitudinal axis of the shaft, and of which the other running disk of the needle bearing is dome-shaped and is supported with its convex dome surface in a surface area of the shaft and is provided with a bearing pin which is from is surrounded by the needle bushing and the roller bodies arranged therein as needles.
- An advantage of the designs according to the invention is that the linear guide not only enables the transmission of torques but also tilting moments. If one considers the shaft longitudinal axis as the X axis and the two axes perpendicular to the X axis and to each other as the Y axis and the Z axis, moments about the X axis are torques which are transmitted from the shaft to the housing. Because the bearings that surround the shaft are arranged in two radial planes at an axial distance from one another, moments about the Y axis and moments about the Z axis, which are tilting moments here, can also pass from the shaft to the housing be transmitted.
- the housing as a steering tube is a thin-walled housing, it can be used as a pretensioning element due to its elasticity.
- the respective support bearings are first assembled in the housing with an oversize towards the center.
- the housing is then expanded, that is to say an elastic deformation of the steering tube, with the corresponding desired prestressing effect.
- a special clamping screw such as is used in the known prior art, is therefore not necessary in the embodiments according to the invention.
- the shaft of the linear guide can be a steering column spindle, which is designed as a polygonal shaft with a triangular, square, square or polygonal basic shape in cross-section, with a surface area with a concave surface being worked in between two longitudinal edges that follow one another in the circumferential direction. Due to the concave surface before the bearing capacity is increased. As a result of the use of complete bearing assemblies with rolling elements and raceways according to the invention, it is no longer necessary to incorporate raceways into the housing.
- FIG. 1 shows a linear guide according to the invention in a perspective view with a cross section in the region of a bearing plane, which shows axial rolling bearings installed in parallel displacement;
- Figure 2 shows the cross section of Figure 1 in an enlarged view
- FIG. 3 shows a partial cross section corresponding to FIG. 2 with a modified axial roller bearing
- FIG. 4 shows a partial cross section corresponding to FIG. 2 with a combined roller bearing containing needles and balls;
- FIG. 5 shows a partial cross section corresponding to FIG. 2 with a needle bearing modified and pivoted in relation to FIG. 4.
- a linear guide according to the invention shown in FIGS. 1 and 2 consists of a shaft 1, a housing 2 and a plurality of axial rolling bearings 3 designed as ball bearings.
- the shaft 1 is the result of a basic shape with a square cross section, into which concave on the four long sides ve surface areas 4 are incorporated. These extend with constant cross-sectional dimensions in the longitudinal direction of the shaft 1.
- the housing 2 is designed in the form of a square tube with internal cross-sectional dimensions that are larger than the shaft dimensions.
- the shaft 1 is inserted axially in the housing 2 and is supported there with the axial roller bearings 3 in a radially supported manner.
- two radial bearing planes are provided on the linear guide, which maintain a longitudinal distance from one another.
- four axial roller bearings 3 are arranged one behind the other in the circumferential direction of the tubular housing 2.
- the housing 2 has continuous radial bores 5, each bore 5 being adjacent to a concave surface area 4 of the shaft 1.
- An axial roller bearing 3 consists in each case of a running disk 6, a bushing 7 and a roller element set 8 arranged between them, balls being used as roller elements.
- the running disk 6 is dome-shaped and has a dome surface 9 which is convex to the shaft 1 and with which it is supported on the shaft in the adjacent concave surface region 4 of the shaft 1. Due to suitable osculation conditions, there is point contact in a contact point 10.
- the dome-shaped running disk 6 is supported by the rotating roller set 8 on the bushing 7, which is a non-cutting component and has a raceway for the roller body 8.
- the bushing 7 is pressed into the respective bore 5 of the housing 2.
- the bore 5 is arranged in the housing 2 so that the central axis 11 of the bushing 7 is displaced in parallel with an offset a with respect to a normal 12 of the longitudinal axis of the shaft 1 running in the bearing plane.
- the point of contact 10 is displaced by the dimension b from the normal 12, which can be referred to as a rotary lever.
- this rotary lever b causes the rotating disk 6 to rotate about the point of contact or the contact line 10 that is created.
- a tolerance-independent positioning of the axial roller bearings 3 with respect to the shaft 1 is achieved during assembly in the tubular housing 2 as follows: The axial roller bearings 3 are pressed into the bores 5 as deep or until the desired contact on the shaft 1 is reached, which you can tell by the amount of force increase.
- Figure 1 shows the section in the area of the front bearing level.
- At least one further bearing level of this type is required in order to enable a play-free torque transmission in both circumferential directions of the linear guide.
- Two bushings of axial roller bearings 3 can be seen in the area of a rear bearing level.
- at least two axial roller bearings 3 must be provided for each bearing level.
- the shaft can have a profile that deviates from the illustration, for example a triangular, polygonal, hollow or solid profile.
- a round shaft can also be guided according to this principle, but without torque absorption.
- FIG. 3 shows an axial roller bearing 13 of a linear guide according to the invention, in whose bush 14 an elastic rubber ring 15 is additionally inserted, on which an additional bearing disk 16, which is provided with a raceway for the rolling element set 8, is supported.
- the rubber ring 15 acts as a compensating element for dimensional tolerances and as a noise-insulating component.
- FIG. 4 shows that in the linear guide according to the invention, instead of a pure axial roller bearing, a needle bush can also be used.
- a needle bush can also be used.
- an additional set of rolling elements 19 for the axial support of a bearing journal 20 is arranged in a needle bushing 17 of a radial needle bearing 18 and is attached to the running disk 6 or in one piece therewith is executed. With the rolling element set 19, the friction of the rotating bearing pin 20 is reduced.
- FIG. 5 the bottom of a needle bushing 21, which surrounds the bearing journal 20 and the roller body set of a needle bearing 22 consisting of needles, has an inwardly convex bulge 23, on which the bearing journal 20 is axially supported. In this way, the friction is reduced when the journal 20 rotates.
- the central axis 11 of the needle bush 21 shown in FIG. 5 is inclined at an angle ⁇ to the normal 12 of the shaft longitudinal axis. This results in the same way as in the embodiments according to FIGS. 1 to 4, a rotation lever b for the running disk 6 and the resulting rotation effect.
- the respective bearing can be fastened in the bore 5 of the housing 2 by caulking 24 (FIGS. 4 and 5) of the housing material or by means of a snap ring.
- the housing acts as a preloading element
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
Dispositif de guidage linéaire pour la transmission de couples entre un boîtier (2) tubulaire rotatif autour de son axe longitudinal et un arbre (1) pouvant coulisser axialement dans ledit boîtier par l'intermédiaire de corps de roulement. Plusieurs paliers à roulement (3) axiaux entourant l'arbre (1) et comportant chacun deux bagues ou disques de roulement et une série de corps de roulement situés entre le boîtier et les bagues ou disques de roulement sont placés dans le boîtier tubulaire (2), dans la zone d'un plan de palier radial. L'un des disques de roulement est complété par former une douille et retenu dans le boîtier (2), l'axe médian de ladite douille étant placé parallèlement à un certain écart (a) par rapport à une perpendiculaire à l'axe longitudinal de l'arbre. L'autre disque de roulement du palier à roulement (3) axial possède une forme de calotte et appuie, avec sa surface de calotte convexe, sur une zone de surface de l'arbre (1) .
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10106982 | 2001-02-15 | ||
DE10106982A DE10106982A1 (de) | 2001-02-15 | 2001-02-15 | Linearführung |
PCT/EP2002/000675 WO2002064989A1 (fr) | 2001-02-15 | 2002-01-24 | Dispositif de guidage lineaire pour la transmission de couples |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1360423A1 true EP1360423A1 (fr) | 2003-11-12 |
Family
ID=7674102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02712841A Withdrawn EP1360423A1 (fr) | 2001-02-15 | 2002-01-24 | Dispositif de guidage lineaire pour la transmission de couples |
Country Status (6)
Country | Link |
---|---|
US (2) | US6948401B2 (fr) |
EP (1) | EP1360423A1 (fr) |
JP (1) | JP2004518099A (fr) |
KR (1) | KR20030077008A (fr) |
DE (1) | DE10106982A1 (fr) |
WO (1) | WO2002064989A1 (fr) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7086305B2 (en) * | 2001-09-04 | 2006-08-08 | Ina-Schaeffler Kg | Gearshift device |
US7481130B2 (en) * | 2001-10-01 | 2009-01-27 | Nsk Ltd. | Vehicle steering telescopic shaft |
DE10220063A1 (de) * | 2002-05-04 | 2003-11-13 | Ina Schaeffler Kg | Führung |
EP1512607B1 (fr) * | 2002-06-11 | 2008-08-13 | NSK Ltd. | Arbre telescopique permettant de diriger un vehicule et arbre telescopique permettant de diriger un vehicule au moyen d'un accouplement d'arbre a cardan |
DE10239618A1 (de) * | 2002-08-29 | 2004-03-11 | Bayerische Motoren Werke Ag | Verschiebelager und Motorradgabel mit einem solchen Verschiebelager |
JP4196630B2 (ja) * | 2002-10-02 | 2008-12-17 | 日本精工株式会社 | 車両ステアリング用伸縮軸 |
JP4254194B2 (ja) * | 2002-10-10 | 2009-04-15 | 日本精工株式会社 | 車両ステアリング用伸縮軸 |
CN100460259C (zh) * | 2002-11-29 | 2009-02-11 | 日本精工株式会社 | 车辆转向用伸缩轴 |
DE10302766A1 (de) * | 2003-01-24 | 2004-07-29 | Ina-Schaeffler Kg | Zahnstangenlenkung |
JP4190905B2 (ja) * | 2003-02-06 | 2008-12-03 | 日本精工株式会社 | 車両用ステアリング装置 |
GB0308911D0 (en) * | 2003-04-17 | 2003-05-21 | Lucas Automotive Gmbh | A steering assembly |
JPWO2005002947A1 (ja) * | 2003-07-02 | 2006-08-10 | 日本精工株式会社 | 車両ステアリング用伸縮軸 |
JP4696916B2 (ja) * | 2004-01-27 | 2011-06-08 | 日本精工株式会社 | 車両ステアリング用伸縮軸 |
US7516985B2 (en) | 2004-03-11 | 2009-04-14 | Delphi Technologies, Inc. | Multi piece bearing for telescoping steering column assembly |
US20060053933A1 (en) * | 2004-08-30 | 2006-03-16 | Gaeth Gerald A | Dual axis rolling element for adjustable steering column |
DE102004051829A1 (de) * | 2004-10-25 | 2006-05-04 | Bosch Rexroth Mechatronics Gmbh | Linearführungs-Vorschubmodul mit Führungskörper sowie Ausleger hierfür |
US20060131873A1 (en) * | 2004-11-26 | 2006-06-22 | Klingbail Kenneth E | High pressure swivel joint |
US7556293B2 (en) * | 2005-06-27 | 2009-07-07 | Delphi Technologies, Inc. | Telescoping steering column assembly and method of manufacturing the assembly |
DE102005037527B4 (de) * | 2005-08-09 | 2014-07-03 | Schaeffler Technologies Gmbh & Co. Kg | Lenkwelle für Kraftfahrzeuge |
US7740207B2 (en) * | 2007-08-22 | 2010-06-22 | Embraer - Empresa Brasileira De Aeronautica S.A. | Aircraft flight control systems and methods |
US7798525B2 (en) * | 2008-04-11 | 2010-09-21 | Gm Global Technology Operations, Inc. | Collapsible steering column assembly |
US8021235B2 (en) * | 2008-12-16 | 2011-09-20 | Nexteer (Beijing) Technology Co., Ltd. | Rolling element shaft assembly |
US20110088502A1 (en) * | 2009-10-19 | 2011-04-21 | Schaeffler Technologies Gmbh & Co. Kg | Steering column with integrated shaft bearing and tube-mounted slidable yoke |
KR20110137098A (ko) * | 2010-06-16 | 2011-12-22 | 삼익정공(주) | 무한 스트로크형 다각형 니이들 베어링 가이드 |
KR20110137099A (ko) * | 2010-06-16 | 2011-12-22 | 삼익정공(주) | 다각형 가이드 순환형 니이들 베어링 리테이너 |
EP2598763A1 (fr) * | 2010-07-28 | 2013-06-05 | Thomson Industries, Inc. | Système de palier pour mouvement linéaire avec barre à autoréglage |
US8443685B2 (en) * | 2010-09-07 | 2013-05-21 | Timotion Technology Co., Ltd. | Linear actuator and safety mechanism for the same |
JP5803495B2 (ja) * | 2011-09-26 | 2015-11-04 | アイシン精機株式会社 | 車両のステアリング装置 |
US8931805B2 (en) * | 2012-11-30 | 2015-01-13 | Steering Solutions Ip Holding Corporation | Telescoping shaft roller assembly in steering column |
KR101687554B1 (ko) * | 2014-12-30 | 2016-12-19 | 한국항공우주산업 주식회사 | 항공기 동체 자동 장착 및 탈착 장치 |
US10295028B2 (en) | 2016-07-26 | 2019-05-21 | Blockwise Engineering Llc | Linear actuator |
JP6991658B2 (ja) * | 2017-11-30 | 2022-01-12 | 株式会社山田製作所 | ステアリング装置 |
Family Cites Families (20)
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US1291388A (en) * | 1918-06-17 | 1919-01-14 | Arvac Mfg Company | Shaft-joint and method of forming the same. |
US1775055A (en) * | 1929-05-31 | 1930-09-02 | Tarbox Gurdon Lucius | Method of making tube joints |
US2023796A (en) * | 1933-02-21 | 1935-12-10 | Lee S Sorensen | Driving bushing for rotary tables |
DE649218C (de) * | 1935-06-08 | 1937-08-18 | Zeiss Carl Fa | Lagerung |
US3169407A (en) * | 1962-02-28 | 1965-02-16 | Westinghouse Air Brake Co | Motion converting device |
US3427656A (en) * | 1966-01-19 | 1969-02-11 | Donald E Miller | Bearing |
FR2169475A5 (fr) * | 1972-01-26 | 1973-09-07 | Glaenzer Spicer Sa | |
DE2705331A1 (de) * | 1977-02-09 | 1978-08-10 | Walter Schaefer | Keilwelle |
DE2804778C3 (de) * | 1978-02-04 | 1982-04-08 | Uni-Cardan Ag, 5200 Siegburg | Teleskopantriebswelle |
DE3124927A1 (de) * | 1981-06-25 | 1983-03-31 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Wellenkupplung zur drehmomentuebertragung |
SE461605B (sv) * | 1987-03-12 | 1990-03-05 | Ffv Autotech Ab | Vridmomentoeverfoerande teleskopaxel med oeverbelastningsskydd |
DE3730393C2 (de) * | 1987-09-10 | 1994-01-13 | Lemfoerder Metallwaren Ag | Lenkwelle für Kraftfahrzeuge, bestehend aus axial ineinander verschieblichen Wellenteilen |
DE8816516U1 (de) * | 1988-03-22 | 1989-12-14 | J.M. Voith Gmbh, 7920 Heidenheim | Teleskop-Gelenkwelle |
DE3834900A1 (de) * | 1988-10-13 | 1990-04-19 | Boening Manfred | Linearfuehrung - mit selbstnachstellender spieleinstellung ein- und mehrspurig nicht verdrehbar |
DE8906246U1 (de) * | 1989-05-20 | 1990-02-15 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Axial-Radialwälzlager |
FR2730773B1 (fr) * | 1995-02-17 | 1997-04-30 | Guimbretiere Pierre | Joint de transmission coulissant, notamment a tripode |
DE19619449A1 (de) * | 1995-06-03 | 1996-12-05 | Doma Tech Pneumatische Kompone | Linearführung |
DE19621464A1 (de) * | 1996-05-29 | 1997-12-04 | Schaeffler Waelzlager Kg | Werkzeugmaschine |
FR2759436B1 (fr) * | 1997-02-11 | 1999-04-30 | Pierre Guimbretiere | Joint homocinetique coulissant a tripode |
DE59900183D1 (de) * | 1999-12-10 | 2001-09-06 | Skf Linearsysteme Gmbh | Wälzlager für Längsbewegungen |
-
2001
- 2001-02-15 DE DE10106982A patent/DE10106982A1/de not_active Withdrawn
-
2002
- 2002-01-24 KR KR10-2003-7009885A patent/KR20030077008A/ko not_active Application Discontinuation
- 2002-01-24 JP JP2002564274A patent/JP2004518099A/ja active Pending
- 2002-01-24 WO PCT/EP2002/000675 patent/WO2002064989A1/fr not_active Application Discontinuation
- 2002-01-24 EP EP02712841A patent/EP1360423A1/fr not_active Withdrawn
-
2003
- 2003-08-15 US US10/643,209 patent/US6948401B2/en not_active Expired - Fee Related
-
2005
- 2005-09-14 US US11/225,984 patent/US7147375B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO02064989A1 * |
Also Published As
Publication number | Publication date |
---|---|
US20040109620A1 (en) | 2004-06-10 |
US7147375B2 (en) | 2006-12-12 |
US6948401B2 (en) | 2005-09-27 |
DE10106982A1 (de) | 2002-08-29 |
US20060005659A1 (en) | 2006-01-12 |
WO2002064989A1 (fr) | 2002-08-22 |
JP2004518099A (ja) | 2004-06-17 |
KR20030077008A (ko) | 2003-09-29 |
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