WO2013038079A1 - Colonne de direction comprenant un mecanisme de blocage en profondeur ameliore. - Google Patents
Colonne de direction comprenant un mecanisme de blocage en profondeur ameliore. Download PDFInfo
- Publication number
- WO2013038079A1 WO2013038079A1 PCT/FR2012/051706 FR2012051706W WO2013038079A1 WO 2013038079 A1 WO2013038079 A1 WO 2013038079A1 FR 2012051706 W FR2012051706 W FR 2012051706W WO 2013038079 A1 WO2013038079 A1 WO 2013038079A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rack
- steering column
- upper body
- movable cam
- clamping
- Prior art date
Links
Classifications
-
- 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
- B62D1/184—Mechanisms for locking columns at selected positions
-
- 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
-
- 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
-
- 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
- B62D1/187—Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustment; with tilt and axial adjustment
Definitions
- Steering column comprising a mechanism for
- the invention relates to an adjustable vehicle steering column.
- the steering column according to the invention is intended in particular but not exclusively to a motor vehicle.
- a steering column allows a regulation in depth and / or height of the steering wheel.
- a steering column comprises a support member intended to be fixed to the chassis of the vehicle, an upper body movably mounted in the support element, an inner tube mounted in the upper body and a clamping and locking device the upper body in position on the inner tube.
- the control of the clamping and locking device is effected by means of a control lever.
- the control lever makes it possible to place the clamping and locking device in a so-called locked position in which the upper body is locked in position on the inner tube and a so-called unlocked position in which the adjustment in depth and / or height of the column direction is allowed, the upper body is no longer locked in position on the inner tube.
- the patent application EP2100795 and EP2100796 relate to steering columns comprising such a locking mechanism.
- the locking mechanism implemented comprises a toothed member cooperating with a notch provided on the upper body or the support element.
- the mechanisms implemented in the steering columns described in the aforementioned documents however have a number of disadvantages. In particular, they generate an over-effort to the control lever, this over-stress is mainly observed when the toothed member is in contact with the notch provided on the upper body or the frame member in a teeth-to-teeth configuration.
- the over-effort lever is sometimes so that it turns out impossible in some cases to operate the control lever to place the adjustment and locking device in the locked position, In addition, the deep biocage of the body superior is no longer insured in this case.
- the invention aims to remedy these problems by proposing a steering column comprising a deep locking mechanism of the upper body whose deep locking is ensured and the maneuverability of the control lever retained.
- the invention provides a steering column comprising an upper body defining a steering axis and in which an inner tube is mounted, two connecting flanges arranged on either side. the upper body and for connecting the upper body to a support member adapted to be fixed to a vehicle frame and a device for clamping and locking the upper body in position on the inner tube 4, the device comprising a clamping screw through the connecting flanges along a clamping axis perpendicular to the steering axis, a set of cams comprising a movable cam mounted free to translate along the clamping screw and a fixed cam, the movable cam being arranged to bear on the inner face of one of the connecting flanges and a rack adapted to cooperate with a notching provided on the inner face of the other connecting flange Elastic means is arranged between the movable cam and the rack to exert on the rack a return force to the connecting flange bearing the notch.
- the rack, the notched connecting flange and the resilient means form an improved deep blocking mechanism.
- a resilient means disposed as indicated above allows to eliminate the over-force imposed on the control lever of the prior art.
- the resilient means allows to take over the control lever reached its locked position.
- the force is no longer exerted on the control lever, the latter being generated by the elastic means.
- the maneuverability of the control lever, whether it is the transition from the locked position to the unlocked position and vice versa is thus improved.
- the presence of the elastic means as described above ensures the deep locking of the upper body, even in case of collision, because of the permanent maintenance of a pressure on the rack in the direction of the notched connection flange.
- inner faces of the connecting flanges is meant the faces closest to the AA direction axis.
- the movable cam and the rack comprise means for retaining the resilient means in position between the movable cam and the rack.
- the resilient means is a compression spring, which is preferably arranged to exert a restoring force directed along an axis substantially parallel to the clamping axis.
- the movable cam and the rack respectively comprises a cam cone and a rack cone on which the compression spring is mounted, ie cam cone and the cone rack forming the spring retaining means in position.
- the toothed member is provided with a retaining pad in the position of the toothed member on the inner face of the other connecting flange, the holding pad coming into contact with one another on the other side. inner tube and the upper body.
- the movable cam is rotated about the clamping axis by drive means formed on the clamping screw.
- the drive means comprise at least one lug on which the movable cam is mounted.
- the drive means comprise a grooved zone on which the movable cam is mounted.
- the clamping screw is controlled by means of a lever. It can also be provided that, in place of the clamping lever, the clamping screw is controlled by means of an electric motor.
- FIG. 1 illustrates a schematic perspective view of a steering column according to the invention
- FIG. 2 illustrates a detail view of the upper body of the steering column of Figure 1;
- FIG. 3 illustrates a sectional view of the steering column of FIG. 1 along the transverse axis MI-MI corresponding to the clamping axis BB;
- Figure 4 illustrates an exploded and partial view of the clamping and locking device of the upper body shown in Figure 1;
- FIG. 5 illustrates a detailed view of the clamping and locking device of FIG. 4
- - Figure 6 illustrates the deep locking mechanism having a complete meshing of the teeth when the clamping and locking device is in the locked position
- - Figure 7 illustrates the locking mechanism in depth when the clamping and locking device is in the unlocked position
- FIG. 8 illustrates the deep locking mechanism in the teeth-to-teeth configuration when the clamping and locking device is in the locked position.
- a steering column comprising a support member 2 intended to be connected to the frame of a vehicle and an upper body 1 defining a AA direction axis and slidably mounted in the support member 2.
- the upper body 1 is connected to the support member 2 by a clamping and locking device of the upper body 1 in position relative to the support member 2.
- the clamping device is adapted to take a locked position in which the upper body 1 is locked in the support member 2 and an unlocked position in which the upper body 1 can slide in the support assembly 2. It will be discussed later as a clamping device and blocking , clamping device or adjusting device.
- the support member 2 is formed of a base provided with two lateral uprights 20 arranged to be disposed on either side of the upper body 1.
- Each of the lateral uprights 20 has a hole for the passage of a clamping screw 5 of the clamping device.
- the two lateral uprights 20 constitute two clamping lugs bearing on either side of the upper body 1.
- the support assembly 2 is in one piece.
- the upper body as shown in Figure 2, comprises a tube 21 provided with a longitudinal opening 24 opening at one of its ends 25.
- the term is defined longitudinal direction of the axis of direction AA.
- an element will be defined as longitudinal when it extends along an axis parallel to the direction axis AA, and as transversal when it extends along an axis perpendicular to the AA axis of direction.
- the longitudinal edges of the tube 21 defining the opening 24 are arranged to form support planes.
- the longitudinal edge 17 will constitute a support plane for a movable cam 9, the longitudinal edge 8 a support plane for a rack 10.
- the upper body 1 further comprises two connecting flanges 22, 23 fixed on both sides of the longitudinal opening 24.
- the flange designated by reference 22 and left flange to refer to the flange designated by reference 23.
- the connecting flanges 22, 23 are arranged vis-à-vis one another and extend along the longitudinal opening 24 of the upper body 1. In the embodiment described, the connecting flanges 22, 23 are welded to the tube 21 of the upper body 1. Moreover, each of the connecting flanges 22, 23 is provided with a longitudinal oblong slot 16 which can be traversed by the clamping screw 5 of the clamping device. Tightening.
- the right connecting flange 22 has an inner face 220, parallel to the support plane 17, provided with a notch extending along the length of said flange. This notching, as will be seen later, is intended to cooperate with a rack.
- the clamping and locking device comprises, as indicated above, a clamping screw 5.
- This clamping screw 5 is intended to pass through the support assembly 2 and the upper body 1 along a clamping axis BB perpendicular to the AA steering axis.
- the clamping device also comprises a cam lock assembly comprising a fixed cam 8 on the upright 20 resting on the left connecting flange 23 of the clamping screw 5 and free to rotate about the clamping screw 5 and a cam mobile 9 climb slidably along the clamping screw 5.
- the movable cam 9 is mounted on the clamping screw 5 to bear on the bearing face 17 of the upper body 1.
- control of the clamping and locking device is effected by means of a control lever 7.
- the clamping screw 5 is controlled by means of an electric motor.
- the clamping and locking device further comprises a rack slidably mounted along the clamping screw 5.
- the rack 10 comprises axial teeth 15 arranged to cooperate with the notching arranged on the inner face 220 of the right connecting flange 22 and having teeth 13 of complementary shape with the teeth 15.
- the rack 10 is provided with a holding pad 12 in position on the inner face of the right connecting flange 22, the holding pad 12 bearing jointly on the inner tube 4 and the raised edge 18 of the upper body 1.
- the pad 12 makes it possible to avoid the rotation of the rack 10 around the clamping screw 5 during the manipulation of the control lever 7 to move from the unlocked position to the locked position and during the adjustment in depth of the upper body 1.
- the purpose is indeed to prevent the axial teeth 15 from skewing with respect to the teeth 13 of the right connecting flange 22 during unlocking of the control lever 7.
- the rack 10 further comprises a cam profile 16 associated with a contact surface 26 of the movable cam 9 to allow, as will be seen later, to tilt the rack 0 and the pad 12 along the adjusting screw 5 (figure 5).
- a resilient means 11 is disposed between the movable cam 9 and the rack 10, the resilient means 11 being arranged to exert on the rack 10 a restoring force towards the notching of the connecting flange.
- the presence of the resilient means is intended to take over from the control lever 7 in the case of tooth positioning on teeth of the rack 10 with the notched connecting flange when the it is placed in locked mode and thus ensure the locking of the upper body 1 in the support member 2 in the event of a driver impact on the steering column during a collision of the vehicle with an obstacle.
- the elastic means 1 1 is a compression spring 110.
- the compression spring 1 10 is arranged to exert a restoring force directed along an axis substantially parallel to the BB clamping axis when the clamping device is in the locked position. It is of course obvious that the invention is not limited to such elastic means and that any other member for exerting a restoring force towards the notching of the connecting flange can be implemented without departing from the scope of the invention. 'invention.
- the movable cam 9 and the rack 10 respectively comprise a cam cone 90 and a rack cone 100 on which the compression spring 110 is mounted.
- the cam cone 90 and the rack cone 100 constitute means for retaining the spring in position between the movable cam 9 and the rack 10. This thus makes it possible to prevent the compression spring 110 from disengaging when the cam 9 is rotating around the clamping screw 5 during the passage of the clamping device from the locked position to the unlocked position.
- the movable cam 9 is rotated about the clamping axis BB by drive means provided on the clamping screw 5.
- the clamping screw 5 has lugs 14, said lugs 14 forming the drive means of the movable cam According to another embodiment not shown, the clamping screw 5 has a grooved zone shaped to drive the movable cam on which it is mounted.
- the control lever 7 In driving situation, the control lever 7 is in the locked position. Under the force exerted by the clamping device, the lateral uprights 20 of the support assembly 2 support on both sides of the upper body 1. Under the force exerted by the lateral uprights 20, the upper body 1, at the level of the connecting flanges 22, 23, deforms, thus enclosing the inner tube 4 mounted in the upper body 1. In this situation, the compression spring 110 maintains the axial teeth 15 of the rack 10 in contact with the teeth 13 arranged on the inner face 220 of the right connecting flange 22. Depending on the axial position of the upper body 1 in the support assembly 2, two configurations of "contact” may occur, namely or a complete meshing of the teeth as shown in FIG. Figure 6 or a configuration "teeth on tooth” as shown in Figure 8.
- the control lever 7 is placed in the unlocked position, causing the tightening screw 5 to rotate.
- the rotation of the control lever 7 with respect to the fixed cam 8 makes it possible to eliminate the clamping tension of the upper body 1 on the inner tube 4.
- the lugs 14 then rotate the movable cam 9 around the clamping screw 5.
- the contact surface 26 bears on the cam profile 16 to tilt the rack 10 and the shoe 12 along the clamping screw 5.
- the axial teeth 15 are then no longer in contact with the teeth 13 of the right connecting flange 22 ( Figure 7).
- the upper body 1 can then slide freely relative to the clamping screw 5 because of the presence of the oblong slots 16 and allow the depth of movement of the upper body 1.
- the spring is held between the cam mobile 9 and the rack 10 through the presence of the cam cone 90 and the cone rack 100.
- the driver puts the control lever 7 in the locked position.
- two cases may occur, namely a complete meshing of the teeth or the tooth-to-teeth configuration.
- the rack 10 will prevent the deep movement of the upper body 1 relative to the clamping screw 5 following the impact of the driver on the steering wheel.
- the teeth-to-teeth configuration following an impact of the driver on the steering wheel, the upper body 1 will move deeply until it reaches the position where the teeth 13 and the axial teeth 15 can mesh and thanks to the pressure applied by the spring on the rack 10, the latter will naturally engage.
- the steering column described above is a steering column adjustment only in depth. It is of course obvious that the skilled person can also implement the locking mechanism previously on a steering column adjustable in inclination or adjustable in inclination and depth by making structural changes to its scope.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Controls (AREA)
- Transmission Devices (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/344,613 US9168945B2 (en) | 2011-09-14 | 2012-07-18 | Steering column comprising an improved depth-blocking mechanism |
CN201280044151.6A CN103889820B (zh) | 2011-09-14 | 2012-07-18 | 包括改进的深度封锁机构的转向柱 |
BR112014006067A BR112014006067A2 (pt) | 2011-09-14 | 2012-07-18 | coluna de direção compreendendo um mecanismo de bloqueio em profundidade |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1158181A FR2979881B1 (fr) | 2011-09-14 | 2011-09-14 | Colonne de direction comprenant un mecanisme de blocage en profondeur ameliore. |
FR1158181 | 2011-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2013038079A1 true WO2013038079A1 (fr) | 2013-03-21 |
Family
ID=46724484
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2012/051706 WO2013038079A1 (fr) | 2011-09-14 | 2012-07-18 | Colonne de direction comprenant un mecanisme de blocage en profondeur ameliore. |
Country Status (5)
Country | Link |
---|---|
US (1) | US9168945B2 (fr) |
CN (1) | CN103889820B (fr) |
BR (1) | BR112014006067A2 (fr) |
FR (1) | FR2979881B1 (fr) |
WO (1) | WO2013038079A1 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2979403B1 (fr) | 2011-08-31 | 2014-02-14 | Zf Systemes De Direction Nacam Sas | Dispositif de liaison d'une colonne de direction avec un boitier de direction. |
JP6351007B2 (ja) * | 2014-02-07 | 2018-07-04 | 株式会社ジェイテクト | ステアリング装置 |
JP6270141B2 (ja) * | 2014-03-24 | 2018-01-31 | 株式会社ジェイテクト | ステアリング装置 |
JP6351009B2 (ja) * | 2014-03-24 | 2018-07-04 | 株式会社ジェイテクト | ステアリング装置 |
GB201408170D0 (en) * | 2014-05-08 | 2014-06-25 | Trw Ltd | A clamp mechanism |
GB201412973D0 (en) * | 2014-07-22 | 2014-09-03 | Trw Ltd | Adjustable steering columns |
FR3027862B1 (fr) | 2014-10-30 | 2016-11-25 | Zf Systemes De Direction Nacam Sas | Colonne de direction de vehicule comprenant une cale a cremaillere |
JP6558572B2 (ja) * | 2015-07-08 | 2019-08-14 | 株式会社ジェイテクト | ステアリング装置 |
GB201522012D0 (en) * | 2015-12-02 | 2016-01-27 | Trw Steering Systems Poland Sp Z O O | Clamp mechanism for a rake adjustable steering column assembly |
CN107487353A (zh) * | 2016-10-12 | 2017-12-19 | 宝沃汽车(中国)有限公司 | 转向管柱用齿形片组、转向管柱调节机构和车辆 |
US11407438B2 (en) * | 2019-02-28 | 2022-08-09 | Steering Solutions Ip Holding Corporation | Clamp load assembly for lock lever |
US11745787B2 (en) | 2019-11-05 | 2023-09-05 | Steering Solutions Ip Holding Corporation | System, method and apparatus for rake adjustment of a steering column |
CN113511258A (zh) * | 2021-08-06 | 2021-10-19 | 四川绵阳三力股份有限公司 | 一种防顶齿的汽车转向柱调节锁紧机构 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19805289A1 (de) * | 1997-02-11 | 1998-08-20 | Gen Motors Corp | Positionseinstellvorrichtung für eine Lenksäule |
EP0900943A1 (fr) * | 1997-09-05 | 1999-03-10 | Lemforder Nacam S.A. | Sécurité d'engagement à étrier d'un dispositif de maintien en position d'un système de serrage de deux éléments |
EP2100795A2 (fr) | 2008-03-11 | 2009-09-16 | Delphi Technologies, Inc. | Mécanisme de verrouillage pour colonne de direction réglable disposant de dents d'impact |
EP2100796A2 (fr) | 2008-03-11 | 2009-09-16 | Delphi Technologies, Inc. | Dispositif de verrouillage pivotant pour colonne de direction réglable |
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JPS60262B2 (ja) * | 1979-11-26 | 1985-01-07 | アイシン精機株式会社 | ステアリングシヤフトのチルト機構 |
US5555772A (en) * | 1994-10-31 | 1996-09-17 | General Motors Corporation | Position control apparatus for steering column |
US5461937A (en) * | 1994-10-31 | 1995-10-31 | General Motors Corporation | Position control apparatus for steering column |
DE19506210C1 (de) * | 1995-02-23 | 1996-06-27 | Lemfoerder Metallwaren Ag | Klemmvorrichtung für eine einstellbare Lenksäule in Kraftfahrzeugen |
FR2737172B1 (fr) * | 1995-07-26 | 1997-10-10 | Nacam | Systeme de guidage et de verrouillage pour colonne de direction de vehicules automobile |
DE19643203A1 (de) * | 1996-10-19 | 1998-04-23 | Supervis Ets | Vorrichtung an einer Lenksäule für Kraftfahrzeuge zur Längen- und/oder Höhen- bzw. Neigungsverstellung |
US6138525A (en) * | 1999-05-06 | 2000-10-31 | Delphi Technologies, Inc. | Motor vehicle steering column and method |
US6419269B1 (en) * | 1999-09-20 | 2002-07-16 | Delphi Technologies | Locking system for adjustable position steering column |
AT411353B (de) * | 2000-10-25 | 2003-12-29 | Sticht Fertigungstech Stiwa | Kupplungsvorrichtung, insbesondere für zumindest zwei relativ zueinander verstellbare teile |
DE10240235A1 (de) * | 2002-08-28 | 2004-03-11 | Thyssenkrupp Presta Ag | Verriegelungsvorrichtung für zwei relativ zueinander verschiebbar gelagerte Bauteile |
JP4352792B2 (ja) * | 2002-09-04 | 2009-10-28 | 日本精工株式会社 | チルト式ステアリング装置 |
JP2004262433A (ja) * | 2003-02-14 | 2004-09-24 | Nsk Ltd | ステアリングコラム装置 |
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JP2008030542A (ja) * | 2006-07-26 | 2008-02-14 | Fuji Kiko Co Ltd | 位置調整式ステアリング装置 |
ITBO20060777A1 (it) * | 2006-11-14 | 2008-05-15 | A M A S P A | Colonna di sterzo |
ITBO20060775A1 (it) * | 2006-11-14 | 2008-05-15 | A M A S P A | Colonna di sterzo |
US7735868B2 (en) * | 2007-02-09 | 2010-06-15 | Gm Global Technology Operations, Inc. | Adjustable steering column assembly for a vehicle |
US20090114055A1 (en) * | 2007-11-05 | 2009-05-07 | Trw Automotive U.S. Llc | Steering column locking mechanism |
US20130174684A1 (en) * | 2012-01-11 | 2013-07-11 | International Truck Intellectual Property Company, Llc | Steering column adjustment |
US8978510B2 (en) * | 2012-02-15 | 2015-03-17 | Steering Solutions Ip Holding Corporation | Steering column telescope and E/A locking device |
-
2011
- 2011-09-14 FR FR1158181A patent/FR2979881B1/fr active Active
-
2012
- 2012-07-18 BR BR112014006067A patent/BR112014006067A2/pt not_active Application Discontinuation
- 2012-07-18 CN CN201280044151.6A patent/CN103889820B/zh active Active
- 2012-07-18 WO PCT/FR2012/051706 patent/WO2013038079A1/fr active Application Filing
- 2012-07-18 US US14/344,613 patent/US9168945B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19805289A1 (de) * | 1997-02-11 | 1998-08-20 | Gen Motors Corp | Positionseinstellvorrichtung für eine Lenksäule |
EP0900943A1 (fr) * | 1997-09-05 | 1999-03-10 | Lemforder Nacam S.A. | Sécurité d'engagement à étrier d'un dispositif de maintien en position d'un système de serrage de deux éléments |
EP2100795A2 (fr) | 2008-03-11 | 2009-09-16 | Delphi Technologies, Inc. | Mécanisme de verrouillage pour colonne de direction réglable disposant de dents d'impact |
EP2100796A2 (fr) | 2008-03-11 | 2009-09-16 | Delphi Technologies, Inc. | Dispositif de verrouillage pivotant pour colonne de direction réglable |
Also Published As
Publication number | Publication date |
---|---|
US9168945B2 (en) | 2015-10-27 |
CN103889820B (zh) | 2016-05-18 |
CN103889820A (zh) | 2014-06-25 |
FR2979881B1 (fr) | 2013-11-22 |
US20140352479A1 (en) | 2014-12-04 |
BR112014006067A2 (pt) | 2017-04-11 |
FR2979881A1 (fr) | 2013-03-15 |
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