WO2007068232A1 - Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe - Google Patents
Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe Download PDFInfo
- Publication number
- WO2007068232A1 WO2007068232A1 PCT/DE2006/002102 DE2006002102W WO2007068232A1 WO 2007068232 A1 WO2007068232 A1 WO 2007068232A1 DE 2006002102 W DE2006002102 W DE 2006002102W WO 2007068232 A1 WO2007068232 A1 WO 2007068232A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- torque
- pulley
- shaft
- engagement
- sensing piston
- Prior art date
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
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
-
- 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
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/52—Pulleys or friction discs of adjustable construction
- F16H55/56—Pulleys or friction discs of adjustable construction of which the bearing parts are relatively axially adjustable
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
-
- 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
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/66—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings
- F16H61/662—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members
- F16H61/66272—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing specially adapted for continuously variable gearings with endless flexible members characterised by means for controlling the torque transmitting capability of the gearing
-
- 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
- F16H9/00—Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members
Definitions
- the invention relates to a method for improving the towing ability of a vehicle equipped with a conical-pulley transmission.
- the invention further relates to a cone pulley pair for a conical-pulley transmission and to an electronic control device for a conical-pulley transmission.
- Cone pulley as used for example in motor vehicles, generally contain two conical disk pairs, which are wrapped by a belt, for example a special chain. By opposing change in the distance between the conical disks of each conical disk pair, the transmission ratio can be changed continuously.
- a problem of vehicles equipped with such a conical-pulley transmission lies in the fact that such motor vehicles can be towed only within narrowly defined conditions, in particular in the event of failure of the drive motor of the motor vehicle, so that there is no damage, in particular due to a lack of oil pressure or hydraulic pressure supply.
- the invention has for its object to reduce the towing problems that exist when towing equipped with a conical-pulley transmission vehicles.
- a first solution of this object is achieved with a method for improving the towing ability of a vehicle equipped with a conical-pulley transmission, in which method torque-transmitting engagement between the bevel belt transmission and an input member driven by a drive motor of the vehicle acts on the conical-pulley transmission from the vehicle Torque and lack of hydraulic loading of the conical pulley is interrupted.
- the torque-transmitting transmission is advantageously recoverable solely by acting on the conical-pulley belt transmission with hydraulic pressure.
- cone pulley pair for a conical pulley, which cone pulley pair includes an input shaft which is rigidly connected to a fixed disk, axially displaceable on the shaft and non-rotatably mounted Wegsay, a torque sensing device with a rigidly connected to the shaft molding surface and a further molding surface, which is rigidly connected to a shaft surrounding, relative to the shaft axially displaceable and rotatable sensing piston, which sensing piston with a rotatably driven input gear in non-rotatable and axially displaceable engagement and from the side facing the disk with hydraulic pressure can be acted upon and which Shaping surfaces are formed such that with an increase in the effective between the sensing piston and the travel disc torque of the sensing piston by rolling arranged between the molding surfaces rolling elements in the direction of Distance disc moves, wherein the non-rotatable and axially displaceable engagement between sensing piston and input gear is such that it dissolves in acting from the flywheel ago torque and not acted upon by hydraulic pressure
- an elastically deformable component is provided, which initially counteracts an axial movement of the sensing piston from an engagement position in which it is in torque-transmitting engagement with the input gear into a release position and forces the sensing piston into a release position when a force maximum is exceeded. in which the engagement with the input gear is released.
- the shaping surfaces are advantageously shaped in such a way that, as the rotational speed of the shaft increases, a force acts in the direction of its displacement toward the travel disc toward the sensing piston.
- the sensing piston may have on its side facing away from the travel disc in the circumferential direction spaced apart, axially directed arms which are provided with axial toothing, which form a total of a circumferential toothing, which is provided with a calculatorsver- toothing of the input wheel in non-rotatable, axially displaceable and detachable tooth engagement.
- a support ring is provided, which is on the on the teeth of the arms radially opposite side in contact with the arms and urges the teeth of the arms into engagement with the peripheral toothing of the input gear.
- An electronic control device for a conical-pulley belt transmission having at least one cone pulley pair constructed as described above and having a starting clutch is advantageously designed such that the starting clutch can only be actuated under the control of the control device if the control device can apply a torque between a drive motor which can be driven when the starting clutch is closed The input wheel and the sensing piston are detected.
- 1 is a partial longitudinal section through essential to the invention parts of a conical disk pair of a conical-pulley,
- FIG. 2 is a view similar to FIG. 1 with towed pair of cones
- Fig. 3 is a view similar to Figures 1 and 2 of a modified embodiment of a cone pulley pair and
- Fig. 4 is a perspective view of a spring ring.
- On the shaft 10 is axially displaceable, but rotatably connected to the shaft of the fixed disk opposite a washer 14 is arranged.
- An unillustrated wrapping means passes between the conical surfaces of the discs and the conical surfaces of another conical disk pair (not shown).
- a cylindrical ring 16 is rigidly fixed in the radially outer region with two radially spaced walls in which a piston 18 operates, so that according to Figure 1 the right side of the piston 18, a first pressure chamber 20 is formed by the in the spacer 14 formed radial bores 22, an annular space 24 between the washer 14 and the shaft 10 and formed in the shaft 10 radial bore 26 and axial bore 28 can be acted upon by hydraulic pressure, which is variable for a translation adjustment.
- the overall annular piston 18 is rigidly connected to a generally cup-shaped support ring wall 30, which in turn is rigidly connected to the shaft 10.
- an annular component 34 which is formed with molding surfaces 32, is rigidly fastened to the support ring wall 30.
- a generally annular sensing piston 36 is axially slidable sealing against the peripheral surface of the shaft 10 and an inner peripheral surface of the annular member 34.
- the sensing piston 36 is formed with a projection directed toward the travel plate 14, on the rear side of which molding surfaces 38 are formed, which form counter surfaces to the shaping surfaces 32.
- Between the forming surfaces 32 and 38 are rolling elements, in the example shown balls 40, respectively.
- a second pressure chamber 42 is formed, which is acted upon via a leading through the shaft 44 supply line with hydraulic pressure, wherein the hydraulic fluid via a likewise formed in the shaft 10 discharge line 46 is derivable.
- the effective cross section of the leading into the second pressure chamber inlet opening 48 is determined by the axial position of the spacer plate 14.
- the free cross section of the outgoing from the second pressure chamber discharge opening 50 is determined by the position of the sensing piston 36.
- the sensing piston 36 protrudes with circumferentially preferably equally spaced axial arms 52 which are integrally formed with the sensing piston, directly rigidly connected to it or integrally formed on a separate, for example, welded to the sensing piston component, through recesses of the support ring wall 30 therethrough.
- the radial outer surfaces of the arms 52 are provided with axially and radially directed teeth 53, which are in engagement with an internal toothing 54 of an input gear 55 which is mounted axially non-displaceably on an outer shell 56 of a bearing 58 in total.
- a support ring 60 is provided which abuts the radially inner sides of the end portions of the arms 52 and the outer teeth 53 holds in secure engagement with the internal teeth 54 of the input gear 55.
- an electronic control unit 62 is provided, the inputs of which are acted upon for the transmission ratio relevant variables, such as the position of a selector lever, the position of an accelerator pedal Outputs of the electronic control unit 62 are connected to a valve assembly 64, which acts on the supply line 44 provided by a hydraulic pump 66 hydraulic pressure and the axial bore 28 with the translation of the transmission adjusting hydraulic pressure acts
- the drain 46 is connected to a return line 68 which returns hydraulic fluid to the hydraulic fluid reservoir.
- the shaping surfaces are designed such that the sensing piston 36 moves to the right with increasing torque according to FIG. 1, so that the discharge opening 50, which is not completely covered by the sensing piston in the basic or initial position of the conical disk pair shown in FIG , is increasingly closed. With decreasing effective size of the discharge opening 50, the pressure in the second pressure chamber 42 increases, so that acts on the travel plate 14 a dependent on the input torque contact pressure.
- the translation adjustment is carried out mainly by means of the supply line 44 supplied hydraulic pressure.
- the axial extent of the internal toothing 54 of the input gear 55 and the external toothing 53 of the arms 52 of the sensing piston 36 are matched to one another such that in the "towing position" of the sensing piston 36 shown in FIG. 2, the teeth 53 and 54 no longer overlap or disengage
- the torque flow between the input gear 55 and the belt transmission is thus interrupted, so that no rotational speeds occur during towing on the unillustrated clutches for forward and reverse travel and in the planetary gear set (which are arranged between the drive wheel 55 and the drive motor, not shown) It can be towed indefinitely and at maximum speeds no longer dependent on transmission lubrication ratios.
- the torque separation between the two gears 53 and 54 is usually not just out of driving, if only the drive motor and thus the pump 66 are turned off because due to the full filling with pressure oil despite lack of static pressure due to the rotation of the shaft 10, a Fliehöldruck arises on the sensing piston, which prevents movement of the sensing piston 36 in the position shown in Fig. 2 farthest possible position to the right. Even when the vehicle is slowly pushed when the drive motor is not running, there is still no separation, since due to the slow rotation of the shaft 10, the centrifugal force influence of the balls 40 acting in the direction of a separation is missing.
- Fig. 1 shows the position of the conical disk 14 with the greatest possible underdrive.
- Fig. 2 shows the towing position of the spacer plate.
- the supply opening 48 is completely open.
- the right-side end face of the internal toothing 54 and / or the left-side end faces of the external teeth 53 of the arms 52 are chamfered in an advantageous manner.
- a device is advantageously provided in which in the transition from the torque transmission position to the release position and vice versa each force must be overcome.
- An example of such a device is shown in FIG.
- Fig. 3 is between an inner shell 70 of the bearing 58 and a flange 72, by means of which the support wall 30 is rigidly connected to the shaft 10, a spring ring 74 is arranged, which is shown enlarged in the approximately framed section of FIG. 3 and in Fig. 4 is shown in perspective.
- the spring ring 74 has elastically deformable arms 76 which have projections 78 which are arranged in the path of movement of the support ring 60, along which the support ring moves when it moves together with the feeler piston or its arms 52 from the rest position shown in FIG. 1 (in Fig. 3 denoted by 6O 1 ) in the release position shown in FIG. 2 (in Fig. 3 with 6O 2 ) moves.
- the convex underside of the support ring 60 cambered outwards must bend the arm 76 downwards, so that the force with which the sensing piston has to be moved first increases and then, after running over of the projection 78, decreases again. This "detent process" runs in both directions.
- the example of the spring ring 74 described detent can be done in different ways.
- sealing O-rings can lead to bevels. It could be a spring plate with spring lugs are used, which cause elastic forces, the spring plate could be similar to the spring ring a simple sheet metal forming part.
- Other alternatives include a compression spring, a coil spring, a spring clip, which is arranged between the balls, Fliehölsammelkammem that cause a balance to the pressure-side centrifugal oil, more balls that cause centrifugal forces axial balancing forces, spring-loaded detent pins, magnetic forces attracting parts, an axial Corrugated spring etc.
- the axial teeth 53 and 54 can be replaced by an axial jaw engagement between a correspondingly connected end face of the input gear 55 and the end faces of the arms 52.
- the teeth 52 and 54 may also be formed such that the drive wheel 55 are provided with external teeth and the fingers 52 with internal teeth.
- the support ring 60 which is not mandatory, is then advantageously arranged on the radial outside of the fingers 52. In the absence of a support ring and existing spring ring 74, the arms are provided to deform the spring ring with lugs. LIST OF REFERENCE NUMBERS
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmissions By Endless Flexible Members (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06828563A EP1966522A1 (de) | 2005-12-17 | 2006-11-29 | Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe |
DE112006003177T DE112006003177A5 (de) | 2005-12-17 | 2006-11-29 | Kegelscheibenumschlingungsgetriebe mit verbesserter Abschleppeignung sowie Kegelscheibenpaar und elektronische Steuereinrichtung für ein Kegelscheibenumschlingungsgetriebe |
JP2008544750A JP2009520159A (ja) | 2005-12-17 | 2006-11-29 | 改善された牽引適正を備えた円錐形ディスク式巻掛け伝動装置ならびに円錐形ディスク式巻掛け伝動装置に用いられる円錐形ディスク対および電子的な制御装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102005060598 | 2005-12-17 | ||
DE102005060598.2 | 2005-12-17 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007068232A1 true WO2007068232A1 (de) | 2007-06-21 |
Family
ID=37806937
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2006/002102 WO2007068232A1 (de) | 2005-12-17 | 2006-11-29 | Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1966522A1 (de) |
JP (1) | JP2009520159A (de) |
KR (1) | KR20080075835A (de) |
CN (1) | CN101331350A (de) |
DE (1) | DE112006003177A5 (de) |
WO (1) | WO2007068232A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008019647A1 (de) * | 2006-08-12 | 2008-02-21 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19939435A1 (de) * | 1998-08-28 | 2000-03-02 | Luk Getriebe Systeme Gmbh | Getriebe |
DE19920803A1 (de) * | 1999-05-06 | 2000-12-07 | Mannesmann Sachs Ag | Anordnung zur Betätigung einer Reibungskupplung |
EP1473182A1 (de) * | 2003-04-28 | 2004-11-03 | Bombardier-Rotax GmbH & Co. KG | Kupplungs-Freigabemechanismus für Kraftfahrzeug |
DE10354157A1 (de) * | 2003-11-21 | 2005-06-23 | Zf Friedrichshafen Ag | Kegelscheibenumschlingungsgetriebe |
-
2006
- 2006-11-29 DE DE112006003177T patent/DE112006003177A5/de not_active Withdrawn
- 2006-11-29 JP JP2008544750A patent/JP2009520159A/ja active Pending
- 2006-11-29 EP EP06828563A patent/EP1966522A1/de not_active Withdrawn
- 2006-11-29 WO PCT/DE2006/002102 patent/WO2007068232A1/de active Application Filing
- 2006-11-29 KR KR1020087006873A patent/KR20080075835A/ko not_active Application Discontinuation
- 2006-11-29 CN CNA2006800475945A patent/CN101331350A/zh active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19939435A1 (de) * | 1998-08-28 | 2000-03-02 | Luk Getriebe Systeme Gmbh | Getriebe |
DE19920803A1 (de) * | 1999-05-06 | 2000-12-07 | Mannesmann Sachs Ag | Anordnung zur Betätigung einer Reibungskupplung |
EP1473182A1 (de) * | 2003-04-28 | 2004-11-03 | Bombardier-Rotax GmbH & Co. KG | Kupplungs-Freigabemechanismus für Kraftfahrzeug |
DE10354157A1 (de) * | 2003-11-21 | 2005-06-23 | Zf Friedrichshafen Ag | Kegelscheibenumschlingungsgetriebe |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008019647A1 (de) * | 2006-08-12 | 2008-02-21 | Luk Lamellen Und Kupplungsbau Beteiligungs Kg | Kegelscheibenumschlingungsgetriebe mit verbesserter abschleppeignung sowie kegelscheibenpaar und elektronische steuereinrichtung für ein kegelscheibenumschlingungsgetriebe |
Also Published As
Publication number | Publication date |
---|---|
JP2009520159A (ja) | 2009-05-21 |
EP1966522A1 (de) | 2008-09-10 |
DE112006003177A5 (de) | 2008-09-11 |
CN101331350A (zh) | 2008-12-24 |
KR20080075835A (ko) | 2008-08-19 |
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