WO2011069652A1 - Presse radiale - Google Patents

Presse radiale Download PDF

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Publication number
WO2011069652A1
WO2011069652A1 PCT/EP2010/007473 EP2010007473W WO2011069652A1 WO 2011069652 A1 WO2011069652 A1 WO 2011069652A1 EP 2010007473 W EP2010007473 W EP 2010007473W WO 2011069652 A1 WO2011069652 A1 WO 2011069652A1
Authority
WO
WIPO (PCT)
Prior art keywords
press
radial
drive
drive unit
axis
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.)
Ceased
Application number
PCT/EP2010/007473
Other languages
German (de)
English (en)
Inventor
Vaclav Hejplik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uniflex Hydraulik GmbH
Original Assignee
Uniflex Hydraulik GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Uniflex Hydraulik GmbH filed Critical Uniflex Hydraulik GmbH
Priority to CN201080056047.XA priority Critical patent/CN102712024B/zh
Priority to EP10798506A priority patent/EP2509725B1/fr
Publication of WO2011069652A1 publication Critical patent/WO2011069652A1/fr
Priority to US13/481,277 priority patent/US8381645B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/044—Means preventing deflection of the frame, especially for C-frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53987—Tube, sleeve or ferrule

Definitions

  • the present invention relates to a radial press for the radial deformation of workpieces relative to a press axis, comprising a first press yoke having first structure and a second press yoke having second structure, wherein the two press yokes a receiving space for a plurality of press jaws comprising pressing tool
  • a radial press of the type mentioned above is known from EP 1510269 Bl. It is distinguished from other known radial presses in which two are relatively close together in a plane perpendicular to the press axis.
  • CONFIRMATION COPY other moveable press yokes form a receiving space for a pressing tool between them (cf., for example, EP 539787 A1, DE 19814474 C1, DE 4135465 A1), by the possibility of radially inserting a workpiece into the tool through the lateral loading opening when the press is open , This is an advantage of considerable practical relevance for various applications, as expressed in particular by DE 19817882 B4.
  • Radial press defining features functionally cooperating aspect of the present invention is accordingly, during at least a portion of the pressing stroke by means of the support drive between the first and the second structure targeted build one of the provided by the drive unit pressing force Deltage directed counterforce, on the opposite side of the tool the drive unit.
  • the backup drive ensures in this way for a press-internal, directly between the first and the second structure effective, complete or at least teilwei se compensation of moments that act through the lateral offset or the eccentricity of the drive unit and tool on the two press yokes, so that the risk of tilting and similar influences affecting functional reliability is significantly reduced.
  • the present invention expressly and deliberately avoids the hitherto pursued approach of providing the force provided by the drive unit completely or at least largely for the radial deformation of the workpiece and for this purpose introducing it into the workpiece. Because part of the power provided by the drive unit is at least in
  • the drive unit of the radial press comprises - in the sense of a first preferred development - at least one traction unit which provides the pressing force and in particular can be designed as a hydraulic cylinder-piston unit.
  • the drive unit comprises two such traction units, wherein the two traction units are then arranged in particular on different sides of the working plane.
  • the opposing force provided by the support drive between the first and the second structure consists in this case of a compressive force, which to a certain extent brakes the movement of the two structures caused by the drive unit relative to one another.
  • the active, targeted slowing down of the movement Supply of the two structures on at least a portion of the pressing stroke by means of the present invention between the two structures arranged and acting, continuously variable length support drive for the substantial reduction of the internal eccentric forces and moments can be sufficient.
  • the first structure is fixedly connected to a machine frame, wherein in the case of execution of the at least one drive unit as a traction unit in the form of a hydraulic cylinder-piston unit of the cylinder concerned
  • Cylinder-piston unit preferably acts on the first structure.
  • the support drive is far more exactly a support member arranged in the working plane. This is included
  • the support drive can also comprise a plurality of support members that are continuously variable in length within the support stroke and cumulatively provide the opposing force oppositely directed against the at least part of the press stroke between the first structure and the second structure of the direction of action of the drive unit.
  • the support drive comprises at least one hydraulic cylinder-piston unit.
  • This allows in particular to tailor the counterforce provided by the backup drive to the pressing force of the drive unit with simple means targeted to the respective application.
  • a structurally particularly simple way of selectively providing effective brake force as a counterforce consists in this case in the (optionally adjustable) throttle braked displacement of hydraulic fluid from the hydraulic cylinder-piston unit of the backup drive.
  • the braking force can be provided by comparably acting, optionally adjustable hydraulic dampers.
  • the drive unit comprises at least one hydraulic cylinder-piston unit results in execution of the support drive such that (even) it comprises at least one hydraulic cylinder-piston unit, the possibility of Hydraulic cylinder-piston unit of the backup drive during the support stroke to apply the same hydraulic pressure as the at least one hydraulic cylinder-piston unit of the drive unit.
  • a fixed ratio between the counterforce provided by the backup drive and the press force provided by the drive unit can be set in a simple manner-by matching the effective surfaces of the cylinder-piston units involved. This can be matched to the geometric conditions of the radial press, from which the ideal distribution of the pressing force can be derived on the part used for the deformation of the workpiece and by the support drive, that is compensated by the counterforce provided by this proportion.
  • the drive unit as well as the support drive each comprise at least one hydraulic cylinder-piston unit, it may prove to be expedient under the stated aspects, if for the counterforce a predetermined proportion of the pressing force is preset. Such a relation can be stored in particular in the machine control.
  • a separate control expediently acts on the supporting drive, by means of which, for example, the throttle effect explained above can be set. It can, however, does not have to act on the drive unit and the backup drive a common machine control, in particular the amount of counter-force provided by the support drive in response to the provided by the drive unit pressing force and / or other
  • the machine control can process the frame and the setting of the individual tensile forces in particular provided by internal machine sensors signals.
  • the radial press according to the invention can be active, for example, a conical deformation of the workpiece, which can result in conventional radial presses over the axial length of the pressing different wall thicknesses of the workpiece or the like, counteract.
  • the distance of the support drive is selected from the press axis in the context of spatial possibilities as large as possible. It is preferably at least 1.5 times, more preferably at least 2 times, the value of the abs of the drive unit from the press axis.
  • a deviating design may also prove expedient.
  • the support drive can also be actuated to open the press after reaching the final press position. Opening the radial press by active, reverse to pressing
  • Actuation of the drive unit can be avoided in this way, which can contribute to an acceleration of the pressing cycle 1 .
  • This can be realized in particular in the case of the execution of the support drive with at least one hydraulic cylinder-piston unit in a simple manner.
  • the support drive for closing the press can be actuated during a first subsection of the pressing stroke.
  • the force that can be supplied by the backup drive is typically sufficient for the movement of the two structures relative to one another.
  • the support drive which in the second subsection of the press stroke (load stroke) in which the workpiece is deformed, provides the opposing force directed against the pressing force in the sense described above, is in this case during the idle stroke as a rapid drive for (fast) closing of the press used.
  • This possibility can be structurally particularly easy to implement if both the drive unit as well as the support drive comprises at least one hydraulic cylinder-piston unit. Once again, this results in a particularly compact, highly functional radial press.
  • the tool comprises intermediate yokes, which are received between the press yokes, in which the guide surfaces are formed for the pressing jaws and which are adjustable relative to the press yokes.
  • the intermediate yokes in particular in the respectively associated press yoke in the plane of the press yokes displaceable be. This makes it possible to displace the press axis depending on the diameter of the workpiece so that it extends as close as the workpiece diameter allows, on the drive unit; This is favorable for the best possible power flow within the machine.
  • a particularly preferred embodiment is characterized in that the two
  • Intermediate yokes are pivotally mounted in the respective associated press yoke about an axis perpendicular to the press axis, so that the tool can be rotated in the press yokes. This is especially favorable for tools with a considerable extent in the direction of the press axis. If the tool is rotated in such a way that the press axis is oriented parallel to the plane of the press yokes, it is possible for the workpiece to be positioned more or less offset in the center of the tool rather than in the center of the tool by correcting the control of the support drive be actively compensated in such a way that it does not lead to a conical deformation of the workpiece. In that regard, this embodiment of the invention provides a viable solution to the problem in practice relevant to the formation of conical pressings arranged outside of the center of the pressing tool workpieces.
  • the intermediate yokes and the press jaws comprehensive tool in the two press yokes both in the plane of the press yokes - is slidably mounted and pivotable about an axis perpendicular to the press axis.
  • FIG. 1 shows an embodiment of a radial press according to the present invention in a perspective view
  • Fig. 3 is a to the radial press of FIGS. 1 and
  • FIG. 4 shows another to the radial press of FIGS.
  • FIG. 5 embodiment of FIG. 4 in one
  • the radial press illustrated in FIGS. 1 and 2 for the radial deformation of workpieces 1 relative to a press axis 2 comprises a first press yoke 3 and a second press yoke 4.
  • the two press yokes 3 and 4 form a receiving space 5 for a pressing tool 6, which comprises a plurality of pressing jaws 7, in a manner known per se
  • the first press yoke 3 is a functional part of a first structure 9; and the second press yoke 4 is a functional part of a second structure 10.
  • the first structure 9 is fixedly connected to a machine frame 11.
  • the second structure 10 is linearly displaceable relative to the first structure 9 under the action of a drive unit 12 in a working plane perpendicular to the press axis 2, namely by a pressing stroke between an (upper) open position, as shown in the drawing, and a (lower) Pressendwolf, as well as in the reverse direction.
  • a lateral feed opening 13 is formed between the two press yokes 3 and 4.
  • the pressing tool 6 is designed split in such a way that in the open position of the radial press a lateral, transversely (radially) to the press axis 2 taking place of the workpiece 1 through the feed opening 13 into the pressing tool 6 is possible.
  • the drive unit 12 is arranged offset on the side facing away from the feed opening 13 to the press axis 2. It includes two sides of the
  • a support drive 20 acting between the first structure 9 and the second structure 10 is arranged (FIG. 2).
  • This comprises a working member arranged in the support member 21 in the form of a hydraulic cylinder-piston unit 22, the cylinder 23 is mounted on a bearing block 24, which forms a functional part of the first structure 9.
  • the second structure 10 comprises a stopper horn 25.
  • the support drive 20 provides an opposing force directed counter to the direction of action of the drive unit 12 acting between the first structure 9 and the second structure 10.
  • the support drive 20 within a support stroke, which corresponds to the load stroke defined to provide said counterforce continuously variable in length.
  • the support drive 20 represents a drive in the form of a pressure unit opposite the drive unit 12.
  • the counterforce is thereby defined by a throttled displacement of hydraulic fluid from the hydraulic cylinder piston.
  • Unit 22 of the support drive 20 provided during the Stitzhubes.
  • FIGS. 1 and 2 The illustrated in Fig. 3 modified embodiment of the radial press differs from that of FIGS. 1 and 2 solely by a different type of support drive.
  • a support member 21 'of the support drive 20' a hydraulic cylinder-piston unit 22 'with a larger stroke used.
  • the working stroke of the support drive 22 ' corresponds to that of the drive unit 12, so that the piston rod 26' of the hydraulic cylinder-piston unit 22 'is constantly connected to the stop horn 25, that is hinged thereto.
  • FIGS. 1 to 3 each show the workpiece 1 not in the position completely inserted into the pressing tool 6, coaxial with the pressing axis, but rather in a position during the radial insertion into the tool through the tool lateral feed opening 13 therethrough.
  • FIGS. 4 and 5 differs from that according to FIGS. 1 and 2 in that here the tool, which is received between the two press yokes 3 and 4 of the radial press, on the tool side
  • Intermediate yokes namely an upper intermediate yoke 29 and lower intermediate yoke 30.
  • the guide surfaces 8 are formed in the manner known as such, on which the pressing jaws 7, in Fig. 5 for reasons of simplification of the illustration are shown, are guided in a sliding manner.
  • the two insects 29 and 30 are pivotally mounted in the respectively associated press yoke 3 and 4 about the vertical axis 31.
  • the Zwisehenjoche 29 and 30 and the press jaws contained therein press tool in the press yokes 3 and 4 that are rotated relative to the machine, in particular such that the press axis 2 instead of one on the plane of the press yokes 3 and 4 vertical orientation (Fig. 4) one to the Level of the press yokes 3 and 4 parallel orientation (Fig. 5) can take.
  • FIGS. 4 and 5 corresponds to the embodiment according to FIGS. 1 and 2, so that in order to avoid repetition, reference is made to the above explanations of that embodiment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)

Abstract

L'invention concerne une presse radiale pour la déformation radiale de pièces (1) par rapport à un axe de presse, comprenant une première et une seconde structure (9, 10) dotées chacune d'une culasse de presse (3, 4). Les deux culasses de presse forment un espace de logement pour un outil de pressage (6). La seconde structure peut être déplacée linéairement sous l'effet d'une unité d'entraînement (12) d'une course de pressage entre une position ouverte et une position finale de pressage dans un plan de travail disposé verticalement sur l'axe de presse par rapport à la première structure. Lorsque la presse radiale est dans la position ouverte, une ouverture d'alimentation latérale (13) est formée entre les deux culasses de presse. L'unité d'entraînement est décalée par rapport à l'axe de presse uniquement sur le côté opposé à l'ouverture d'alimentation. Un entraînement de support (20) disposé sur le côté, opposé à l'axe de presse, de l'unité d'entraînement (12), pouvant varier en longueur de façon continue et définie dans les limites d'une course de support, qui fournit au moins sur une partie de la course de pressage une force antagoniste agissant dans le sens opposé au sens d'action de l'unité d'entraînement entre la première structure et la seconde structure, agit entre la première structure (9) et la seconde structure (10).
PCT/EP2010/007473 2009-12-10 2010-12-09 Presse radiale Ceased WO2011069652A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201080056047.XA CN102712024B (zh) 2009-12-10 2010-12-09 径向挤压机
EP10798506A EP2509725B1 (fr) 2009-12-10 2010-12-09 Presse radiale
US13/481,277 US8381645B2 (en) 2009-12-10 2012-05-25 Radial press

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009057726.2 2009-12-10
DE102009057726A DE102009057726A1 (de) 2009-12-10 2009-12-10 Radialpresse

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US13/481,277 Continuation US8381645B2 (en) 2009-12-10 2012-05-25 Radial press

Publications (1)

Publication Number Publication Date
WO2011069652A1 true WO2011069652A1 (fr) 2011-06-16

Family

ID=43983546

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/007473 Ceased WO2011069652A1 (fr) 2009-12-10 2010-12-09 Presse radiale

Country Status (5)

Country Link
US (1) US8381645B2 (fr)
EP (1) EP2509725B1 (fr)
CN (1) CN102712024B (fr)
DE (1) DE102009057726A1 (fr)
WO (1) WO2011069652A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140020226A1 (en) * 2012-07-19 2014-01-23 Designed Metal Connections, Inc. Swinging Head Swage Tool

Families Citing this family (19)

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Publication number Priority date Publication date Assignee Title
DE102012025134A1 (de) 2012-12-21 2014-06-26 Uniflex-Hydraulik Gmbh Umformpresse
CN103394894B (zh) * 2013-07-04 2016-01-13 广西玉柴机器股份有限公司 发动机分段式排气管装配装置及方法
US20160197413A1 (en) * 2013-10-16 2016-07-07 Afl Telecommunications Llc Weight reduced swage parallel groove clamp
DE102014008613A1 (de) * 2014-06-06 2015-12-17 Uniflex-Hydraulik Gmbh Radialpresse
DE102014014585B3 (de) * 2014-10-07 2015-10-29 Uniflex-Hydraulik Gmbh Radialpresse
US9701085B1 (en) * 2016-10-31 2017-07-11 Uniflex Hydraulik Gmbh Radial press
DE102018115750B3 (de) 2018-06-29 2019-07-11 Uniflex-Hydraulik Gmbh Radialpresse sowie Verfahren zum Fügen zweier Bauteile mittels Radialpressung
DE102018115744A1 (de) 2018-06-29 2020-01-02 Uniflex-Hydraulik Gmbh Radialpresse sowie Verfahren zum Fügen zweier Bauteile mittels Radialpressung
CN113632015B (zh) * 2019-03-29 2024-05-28 尤尼弗莱克斯-液压有限责任公司 用于制造多个复合结构的方法
US11203053B2 (en) 2019-10-03 2021-12-21 Shyam Newar Peripheral combination hydraulic press to forge and method of manufacturing thereof
DE102020102837B4 (de) 2020-02-05 2022-02-03 Uniflex - Hydraulik GmbH Radialpresse
DE102020121143B4 (de) * 2020-08-11 2022-03-10 Uniflex - Hydraulik GmbH Radialpresse
DE102020121142B4 (de) * 2020-08-11 2022-03-10 Uniflex - Hydraulik GmbH Radialpresse
DE102020125890B3 (de) 2020-10-02 2022-03-10 Uniflex - Hydraulik GmbH Radialpresse
CN113442092B (zh) * 2021-07-27 2022-08-19 大连长之琳科技发展有限公司 一种轴向挤压专用工具
EP4144456B1 (fr) 2021-09-02 2025-11-26 Uniflex-Hydraulik GmbH Procédé de fabrication d'une conduite hydraulique à haute pression
DE102022109427B4 (de) 2022-04-19 2024-04-25 Uniflex - Hydraulik GmbH Radialpresse
DE202022102074U1 (de) 2022-04-19 2022-04-27 Uniflex - Hydraulik GmbH Radialpresse
DE102023109974B3 (de) 2023-04-20 2024-06-20 Uniflex - Hydraulik GmbH Radialpresse

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DE4135465A1 (de) 1991-10-28 1993-04-29 Schroeck Peter Dipl Ing Fh Radialpresse mit zwei radial gegeneinander beweglichen pressenjochen
DE19814474C1 (de) 1998-04-01 1999-07-08 Peter Dipl Ing Schroeck Radialpreßwerkzeug für die Verformung rotationssymmetrischer Werkstücke
DE19940744A1 (de) * 1999-08-27 2001-03-01 Uniflex Hydraulik Gmbh Radialpresse
DE10047025A1 (de) * 2000-09-22 2002-05-08 Uniflex Hydraulik Gmbh Radialpresse
DE19817882B4 (de) 1998-04-22 2005-08-18 Uniflex-Hydraulik Gmbh Radialpresse
DE102005034260B3 (de) * 2005-07-22 2006-07-27 Schröck-Horn, Ursula Radialpresse zum Verpressen von rotationssymmetrischen Hohlkörpern
EP1510269B1 (fr) 2003-08-27 2008-01-02 von Waitzische Beteiligungen GbR vertreten durch die Gesellschafter Harald v. Waitz und Dr. Friedrich v. Waitz Presse radiale pour sertir des corps creux à symétrie de rotation

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AT410707B (de) * 2000-05-12 2003-07-25 Steyr Werner Waelzlager Und In Vorrichtung zum anklemmen eines hydraulikschlauches an eine schlaucharmatur mit einer presse
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Publication number Priority date Publication date Assignee Title
DE4135465A1 (de) 1991-10-28 1993-04-29 Schroeck Peter Dipl Ing Fh Radialpresse mit zwei radial gegeneinander beweglichen pressenjochen
EP0539787A1 (fr) 1991-10-28 1993-05-05 von Waitzische Beteiligungen GbR Presse radiale avec deux culasses de presse radialement mobile entre elles
DE19814474C1 (de) 1998-04-01 1999-07-08 Peter Dipl Ing Schroeck Radialpreßwerkzeug für die Verformung rotationssymmetrischer Werkstücke
DE19817882B4 (de) 1998-04-22 2005-08-18 Uniflex-Hydraulik Gmbh Radialpresse
DE19940744A1 (de) * 1999-08-27 2001-03-01 Uniflex Hydraulik Gmbh Radialpresse
DE10047025A1 (de) * 2000-09-22 2002-05-08 Uniflex Hydraulik Gmbh Radialpresse
EP1510269B1 (fr) 2003-08-27 2008-01-02 von Waitzische Beteiligungen GbR vertreten durch die Gesellschafter Harald v. Waitz und Dr. Friedrich v. Waitz Presse radiale pour sertir des corps creux à symétrie de rotation
DE102005034260B3 (de) * 2005-07-22 2006-07-27 Schröck-Horn, Ursula Radialpresse zum Verpressen von rotationssymmetrischen Hohlkörpern

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140020226A1 (en) * 2012-07-19 2014-01-23 Designed Metal Connections, Inc. Swinging Head Swage Tool
US9085023B2 (en) * 2012-07-19 2015-07-21 Dmc Power, Inc. Swinging head swage tool
AU2013205312B2 (en) * 2012-07-19 2016-05-05 Dmc Power, Inc Swinging head swage tool

Also Published As

Publication number Publication date
US8381645B2 (en) 2013-02-26
EP2509725A1 (fr) 2012-10-17
EP2509725B1 (fr) 2013-03-20
CN102712024B (zh) 2014-11-05
CN102712024A (zh) 2012-10-03
US20120227596A1 (en) 2012-09-13
DE102009057726A1 (de) 2011-06-16

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