EP2234762B1 - Élément de serrage - Google Patents

Élément de serrage Download PDF

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Publication number
EP2234762B1
EP2234762B1 EP09700826A EP09700826A EP2234762B1 EP 2234762 B1 EP2234762 B1 EP 2234762B1 EP 09700826 A EP09700826 A EP 09700826A EP 09700826 A EP09700826 A EP 09700826A EP 2234762 B1 EP2234762 B1 EP 2234762B1
Authority
EP
European Patent Office
Prior art keywords
clamping
housing
eccentric
piston
clamping lever
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.)
Not-in-force
Application number
EP09700826A
Other languages
German (de)
English (en)
Other versions
EP2234762A1 (fr
Inventor
Matthias Fischer
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.)
Vel Vega - Design e Tecnologia Ind Unip Lda
Original Assignee
Vel Vega - Design e Tecnologia Ind Unip Lda
VEL VEGA DESIGN E TECNOLOGIA IND UNIP Lda
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 Vel Vega - Design e Tecnologia Ind Unip Lda, VEL VEGA DESIGN E TECNOLOGIA IND UNIP Lda filed Critical Vel Vega - Design e Tecnologia Ind Unip Lda
Publication of EP2234762A1 publication Critical patent/EP2234762A1/fr
Application granted granted Critical
Publication of EP2234762B1 publication Critical patent/EP2234762B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/061—Arrangements for positively actuating jaws with fluid drive
    • B25B5/064—Arrangements for positively actuating jaws with fluid drive with clamping means pivoting around an axis perpendicular to the pressing direction

Definitions

  • the invention relates to a clamping element for fixing a workpiece with a stationary housing in operation, a relative to the housing movable clamping lever with a clamping range for applying force to the workpiece and a respect to the housing in a direction of extension extendable piston, wherein the piston is designed for pivoting the clamping lever in that the tensioning lever is movable between a released initial state and a tensioned final state.
  • Generic clamping elements are known from the prior art. They serve to clamp a workpiece on a clamping surface.
  • the clamping lever is provided, which is movable relative to the housing and which can be pivoted by an extension of the piston such that the clamping area comes to rest on the workpiece and this presses with a clamping force against the clamping surface.
  • the clamping lever is formed in generic clamping elements for carrying out a pivoting movement and thus describes a circular path relative to a pivot axis provided therefor and since the piston is designed to describe a translational movement, the clamping lever can not be mounted on the housing and the piston simultaneously pivotable.
  • a balancing mechanism is known for overcoming this problem from the prior art, for example, between the housing and the clamping lever to provide a pair of tabs, the tabs of this pair of tabs on the one hand on the clamping lever and on the other hand are pivotally mounted on the housing.
  • clamping elements with a pair of tabs have an unsatisfactory stability, in particular against lateral forces, ie forces in the direction of the pivot axes of the tabs on.
  • the use of such swivel tabs leads to a variety of vulnerabilities to the respective pivot axes, since chips can get between the components of the clamping element and prevent satisfactory functioning.
  • Other disadvantages of such clamping elements with a pair of tabs are the presence of many interfering edges and the associated risk of accidents and in the relatively large size of such clamping elements.
  • the object of the invention is to develop a generic clamping element to the effect that the disadvantages of the prior art can be avoided or reduced.
  • eccentric disc in the context of the invention, a rotatably mounted about its central axis disc is considered.
  • the eccentric disc is preferably mounted on its lateral surface by being inserted into a corresponding circular recess of the clamping lever, the piston or the housing.
  • an eccentric shaft which extends parallel to the central axis of the eccentric disc and whose center line is spaced from the central axis of the eccentric disc.
  • This eccentric shaft is mounted on another than the component on which the eccentric disc is mounted.
  • the eccentric disc may be mounted on the clamping lever or on the housing, wherein the eccentric shaft is mounted on the respective other component.
  • the piston and the clamping lever are juxtaposed directly by means of a relative to the clamping lever and relative to the piston stationary pivot axis.
  • the eccentric disk in the second variant can also be used for connecting the clamping lever to the piston.
  • the eccentric disk in the second variant can also be used for connecting the clamping lever to the piston.
  • the clamping lever is pivotally mounted directly on the housing, wherein the relevant pivot axis is stationary both to the clamping lever and to the housing.
  • the eccentric shaft can be designed to be rotatable relative to the eccentric disk and relative to the component in which it is mounted, that is to say the housing, the piston or the tensioning lever. However, it can also be provided rotatably on the eccentric disc or on the component in which it is mounted.
  • the pivot axes of the tab pair find their correspondence in the center axes of the eccentric and the eccentric shaft.
  • the eccentric disc together with the eccentric shaft fulfills the task of a compensating means.
  • the number of critical areas can penetrate into the chips and can interfere with the functioning of the clamping element, can be significantly reduced.
  • This design causes a rotation of the eccentric disc about its central axis to the resulting change in position of the eccentric shaft no Effects on the outer shape of the eccentric and the eccentric bearing component has. This leads to a low risk of accidents and high reliability.
  • the clamping element has a clevis connection between the clamping lever on the one hand and the housing or the piston on the other hand, wherein the clevis connection a clevis with two Gabelkopffort exercisesn, which is firmly connected to the clamping lever or to the housing or the piston, and a counter portion which is fixedly connected to the housing or the piston or the clamping lever.
  • the clevis connection is provided between the two components, which are mutually movable by means of the eccentric disc. The clevis connection ensures a high degree of stability and optimum power transmission.
  • Both the fork head and the counter section extending between the fork head extensions of the fork head can be assigned to each of the components which are movable relative to one another according to the invention, that is to say the tension lever, the piston and the housing, and firmly connected thereto.
  • the fork head is fixedly connected to the housing and the counterpart section is formed by the clamping lever.
  • the Gabelkopffort alternatives are preferably integrally formed on the housing.
  • the clevis is fixedly provided on the clamping lever and the counter portion is formed by the piston.
  • the width of the mating section in the direction of the center axes of the eccentric disc and the eccentric shaft is preferably adapted to a space provided between the Gabelkopffort arrangementsn such that there is minimal play, preferably a clearance of less than 1 mm. This avoids that chips can penetrate between clamping lever and piston or housing.
  • the at least one eccentric disc is rotatably mounted on the counter portion, wherein the eccentric eccentric connected to the eccentric eccentric shaft is mounted on the Gabelkopffort systemsn.
  • the eccentric eccentric connected to the eccentric eccentric shaft is mounted on the Gabelkopffort systemsn.
  • the eccentrically provided on the eccentric eccentric shaft extends outwardly into the region of GabelkopffortA and is there rotatably or rotatably mounted.
  • an eccentric disk is rotatably mounted on both fork head extensions, the eccentric shaft connected eccentrically to the eccentric disk being mounted on the mating section.
  • the counterpart section can be designed to be particularly small compared with the eccentric disk, due to the preferably smaller diameter of the eccentric shaft.
  • the two eccentric discs are rotatably mounted on the Gabelkopffort accountsn and always move together with the intended use together with the Gabelkopfforttrainen.
  • the receiving bores in which the eccentric discs are received need not be through-holes, but can be designed as facing each other open blind holes. However, it is preferred that the holes are formed as through holes.
  • the at least one eccentric disk in the axial direction has a tapered shape.
  • This tapered shape has the corresponding advantage in design of the receiving bore of the eccentric disc that the eccentric disc can be inserted only in one direction in the receiving bore and removed only in the opposite direction from the bore. This makes it possible, in particular, to insert the eccentric discs into the corresponding bores, in each case from the side of the counterpart portion, and to prevent the eccentric discs from slipping out of their associated bores by subsequent insertion of the counterpart portion.
  • the tapered shape of the eccentric discs can be achieved for example by a conical design and corresponding conical holes.
  • a design is considered in which a first portion of the eccentric disc, which is arranged in operation in the respective corresponding bores, is cylindrical, but with this first section is followed by a preferably circumferential and radially outwardly facing retaining collar, the at least in sections has a relative to the central axis of the eccentric larger radius than the associated receiving bore.
  • the housing has an approximately cylindrical fixing portion, on whose outer side an external thread is provided and by means of which the housing in its entirety in a corresponding bore of a clamping device can be screwed.
  • the fixing portion which is an integral part of the housing and is fixedly connected to this, serves itself to determine the housing.
  • a corresponding recess with an internal thread is provided on a clamping surface on which the workpiece is to be clamped, into which the clamping element can be screwed in its entirety.
  • the relative position of the clamping element relative to a clamping surface is flexibly adjustable by the depth of engagement, whereby an applicability for workpieces of different heights is achieved.
  • the clamping element can be screwed into the clamping device only a few turns deep, while in other smaller workpieces the fixing section is screwed approximately completely into the clamping device.
  • a locking means in particular a lock nut is additionally provided on the outside of the fixing section.
  • Media supply lines for supplying a pressure medium such as air or oil may be provided on the underside of the housing, in particular on the underside of the fixing portion.
  • a configuration is considered particularly advantageous in which corresponding connections are provided on the lateral surface of the cylindrical fixing section.
  • at least two inlet openings for supplying the pressure medium are provided on the outside of the cylindrical fixing portion, wherein the inlet openings are spaced apart in the direction of a cylinder axis of the fixing portion. These two inlet openings can be used alternatively.
  • the other or the other inlet openings are preferably closed by means of plugs.
  • the design with a plurality of inlet openings makes it possible, irrespective of the depth of engagement of the fixing section, to have at least one inlet opening at which supply of the pressure medium can take place.
  • clamping elements according to the invention can be designed relative to one another and relative to a clamping surface with respect to the arrangement of the clamping lever, the piston and the housing.
  • Preferred embodiments comprise an embodiment as a vertical clamping element, in which the force vector of the force acting on the workpiece from the clamping region of the clamping lever in the final state runs approximately parallel (+/- 15 °) to the extension direction of the piston and to a surface normal on the clamping surface.
  • They further include a configuration as a horizontal clamping element, in which the piston is aligned approximately parallel (+/- 30 °) to the clamping surface.
  • a special form of these horizontal clamping elements form the pull-down clamping elements, in which the force vector of the force acting on the workpiece from the clamping region of the clamping lever with the clamping surface at an angle of about 30 ° (+/- 10 °).
  • FIGS. 1a, 1b and 2 show a first embodiment of a tensioning element according to the invention and its individual parts.
  • the clamping element has a housing 10, which has a U-shaped clevis portion 20 and an adjoining cylindrical fixing portion 40.
  • the clevis portion 20 has two planar Gabelkopffort instruments 22a, 22b, which are arranged parallel to each other and define an intermediate space 24 laterally.
  • the Gabelkopffort instruments 22 a, 22 b are integrally formed at its lower end to a base plate 26. From this base plate 26, the cylindrical fixing portion 40 extends downward.
  • a cylinder bore 42 is provided in this fixing section, which serves to receive a piston 70 still described below.
  • a through hole 44 connects coaxially to the cylinder bore 42 and extends through the base plate 26 into the clearance 24 between the fork head extensions 22a, 22b.
  • an external thread 48 is provided, by means of which the clamping element can be screwed in a variable depth in a corresponding bore of a clamping surface.
  • a lock ring 49 is screwed with internal thread, which can be countered by screwing the clamping element in this bore of the clamping surface against the clamping surface.
  • each receiving holes 30a, 30b are mutually aligned, which serve to receive the eccentric discs 80a, 80b described below.
  • the clamping lever 60 forms the second main component of the clamping element.
  • the tension lever 60 has a width that is only slightly smaller than the width of the clearance 24 between the fork head tongues 22a, 22b.
  • the clamping lever 60 has a front portion 62, on the underside of a clamping portion 64 is provided.
  • the clamping area is formed as a spherical surface, which is provided for line contact with the workpiece to be clamped.
  • a rear portion 66 of the clamping lever 60 is formed as a clevis and has a cross-section with an approximately U-shaped configuration.
  • front and rear holes 68 a, 68 b are provided in the clamping lever 60.
  • the clamping lever 60 engages around in the assembled state Fig. 1a and 1b a head portion 72 provided at the upper end of the piston 70.
  • a bolt 74 which extends in the assembled state of the clamping element through the bores 68b and through the provided in the head portion 72 of the piston 70 bore 73, the piston 70 and the tension lifting 60 are directly against each other.
  • the piston is inserted in the assembled state from below into the cylinder bore 42, so that the head portion 72 through the through hole 44 therethrough in the open area 24 between the Gabelkopffort ordersn 22a, 22b is arranged.
  • the clamping lever 60 is also connected to the housing by means of the two eccentric discs 80a, 80b.
  • the eccentric discs 80a, 80b are arranged in the assembled state in the receiving bores 30a, 30b. They are inserted for this purpose from the free area 24 into the receiving bores 30a, 30b.
  • the eccentric discs 80a, 80b do not slip outwardly out of the receiving bores 30a, 30b, they have a circumferential retaining collar 82a, 82b at their end facing the free area 24. While the diameter of the eccentric discs 80a, 80b is matched to the bores 30a, 30b away from the retaining collar 82a, 82b such that a tight clearance fit is produced, the diameter of the eccentric discs 80a, 80b is greater than the diameter of the retaining collar 82a, 82b Receiving bores 30a, 30b. This prevents the eccentric discs from slipping outwardly out of the receiving bores 30a, 30b.
  • eccentric discs 80a, 80b each eccentrically arranged and parallel to the central axis of the eccentric discs 80a, 80b aligned bore 84a, 84b is provided.
  • a bolt 88 passes through these eccentric bores 84 and the bore 68a of the clamping lever 60.
  • the bolt 88 forms the eccentric shaft 88 of the eccentric discs 80a, 80b.
  • This, as well as the small clearance between housing and clamping lever cause chips can hardly get into critical areas of the clamping element. The risk of damaging the workpiece when placing a workpiece on a clamping surface by accidental contact with the clamping element, is low.
  • the eccentric has the intended function, the clamping lever 60 during the clamping operation, ie during the transition from the state of FIG. 1a to the state of FIG. 1b to guide such that the bore 68b and thus the pivot axis between the piston 70th and the tensioning lever 60 is moved parallel to the extension direction 104 of the piston 70. Due to the design of the eccentric discs 80a, 80b, the eccentricity between the axis of rotation 6 of the eccentric discs 80a, 80b and defined by the center axis 8 of the eccentric shaft 88 pivot axis 8 of the clamping lever 60 relative to the eccentric discs 80a, 80b are set freely.
  • the pivotal movement of the clamping lever 60 thus deviates only slightly with the appropriate design in the kinematic mandatory dimensions of a pivoting movement about a housing-fixed pivot axis.
  • the clamping element is thus hardly larger in the untensioned state than in the tensioned state.
  • the tension lever 60 is almost completely covered by the protective fork head extensions 22a, 22b, so that the risk of accidents is reduced.
  • FIGS. 3 and 4 a second embodiment of a tensioning element according to the invention is shown.
  • the eccentric disc 180 is not stored in the Gabelkopffortussien 122a, 122b, but in the pivot lever 160 itself.
  • This has for this purpose designed as a through hole receiving bore 161, into which the eccentric disc 180, with respect to their width to the pivot lever 160 corresponds, is used.
  • the eccentric shaft 188 which in turn eccentrically in a bore 184 of the eccentric disc 180 is mounted on both sides in bearing bores 128a, 128b of the Gabelkopffortaxe 122a, 122b.
  • the kinematic effect of the eccentric disc 180 corresponds to that of the eccentric discs 80a, 80b of the embodiment of the Fig. 1 and 2 , Differences arise with regard to the design of the components.
  • the clamping lever must be designed to accommodate the eccentric larger. However, only one eccentric is required.
  • FIGS. 5 to 7 A third embodiment is in FIGS. 5 to 7 shown.
  • clamping lever is mounted directly on the housing 210 by means of a bolt 288 in this embodiment.
  • the pivot axis defined by the bolt 288 and the holes 228a, 228b, 268a penetrated by it is stationary relative to the housing 210 and relative to the tensioning lever 260.
  • the eccentric discs are provided instead of the pivotal coupling of clamping lever 260 and housing 210 for the pivotal coupling of clamping lever 260 and piston 270.
  • the two eccentric discs 280a, 280b with respect to their design the eccentric discs FIGS. 1 and 2 correspond, rotatably provided in receiving bores 269 a, 269 b of the clamping lever 260 formed in sections as a clevis.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Clamps And Clips (AREA)

Claims (9)

  1. Élément de serrage destiné à fixer une pièce d'oeuvre, comprenant
    - un corps (10 ; 110 ; 210) fixe en fonctionnement,
    - un levier de serrage (60 ; 160 ; 260) mobile par rapport au corps (10 ; 110 ; 210) et présentant une plage de serrage (64 ; 164 ; 264) pour appliquer une force sur la pièce d'oeuvre et
    - un piston (70 ; 170 ; 270) déployable en translation par rapport au corps (10 ; 110 ; 210) dans un sens de déploiement (4),
    sachant que
    - le piston (70 ; 170 ; 270) est conçu pour pivoter le levier de serrage (60 ; 160 ; 260) si bien que le levier de serrage (60 ; 160 ; 260) est mobile entre un état initial desserré et un état final serré,
    caractérisé en ce que
    l'élément de serrage présente au moins un disque à excentrique (80a, 80b ; 180 ; 280a, 280b) pouvant pivoter autour de son axe médian (6) et muni d'un arbre d'excentrique (88, 188, 274) prévu parallèle à l'axe médian (6) et excentré par rapport à l'axe médian, sachant que le disque à excentrique (80a, 80b ; 180 ; 280a, 280b) et l'arbre d'excentrique (88, 188, 274) sont logés sur différents composants et que le levier de serrage (60 ; 160 ; 260)
    - est d'un côté logé sur le corps (10 ; 110) au moyen du disque à excentrique (80a, 80b ; 180) avec arbre d'excentrique (88, 188), le disque à excentrique étant logé de manière pivotante sur le levier de serrage ou sur le corps, et l'arbre d'excentrique étant logé sur l'autre composant, et que d'un autre côté le levier de serrage est logé sur le piston (70 ; 170) autour d'un axe de pivotement fixe par rapport au levier de serrage (60 ; 160) et au piston (70 ; 170), ou
    - est d'un côté logé sur le piston (270) au moyen du disque à excentrique (280a, 280b) avec arbre d'excentrique (274), le disque à excentrique étant logé de manière pivotante sur le piston ou le levier de serrage, et l'arbre d'excentrique étant logé sur l'autre composant, et que d'un autre côté le levier de serrage est logé sur le corps (210) autour d'un axe de pivotement fixe par rapport au levier de serrage (260) et au corps (210).
  2. Élément de serrage selon la revendication 1,
    caractérisé par
    une liaison par chape entre le levier de serrage (60 ; 160 ; 260) d'une part et le corps (10 ; 110 ; 210) respectivement le piston (70 ; 170 ; 270) d'autre part, sachant que la liaison par chape présente une chape (20) à deux branches de chape (22a, 22b ; 122a, 122b), qui est reliée fixement au levier de serrage (260) ou au corps (10 ; 110) respectivement au piston, ainsi qu'une partie complémentaire (60 ; 160 ; 270), qui est reliée fixement au corps respectivement au piston (270) ou au levier de serrage (60 ; 160).
  3. Élément de serrage selon la revendication 2,
    caractérisé en ce que
    l'au moins un disque à excentrique (180) est logé de manière pivotante sur la partie complémentaire (160), sachant qu'est prévu un arbre d'excentrique (188) relié au disque à excentrique de manière excentrée et logé sur les branches de chape (122a, 122b).
  4. Élément de serrage selon la revendication 3,
    caractérisé en ce que
    l'au moins un disque à excentrique (180) est intégralement recouvert par les branches de chape (122a, 122b).
  5. Élément de serrage selon la revendication 2,
    caractérisé en ce que
    respectivement un disque à excentrique (80a, 80b ; 280a, 280b) est logé de manière pivotante sur chacune des deux branches de chape (22a, 22b), sachant qu'est prévu un arbre d'excentrique (88 ; 274) relié de manière excentrée au disque à excentrique (80a, 80b ; 280a, 280b) et logé sur la partie complémentaire (60 ; 270).
  6. Élément de serrage selon l'une des revendications précédentes,
    caractérisé en ce que
    l'au moins un disque à excentrique (80a, 80b ; 280a, 280b) présente une forme qui se rétrécit dans le sens axial.
  7. Élément de serrage selon l'une des revendications 2 à 6,
    caractérisé en ce que
    la chape (20) est prévue sur le corps (10 ; 110 ; 210), les branches de chape (22a, 22b ; 122a, 122b) étant de préférence formées d'une seule pièce sur le corps (10 ; 110 ; 210).
  8. Élément de serrage selon l'une des revendications précédentes,
    caractérisé en ce que
    le corps (10) présente une section de fixation (40) approximativement cylindrique, sur l'extérieur de laquelle est prévu un filet mâle (48) et au moyen duquel le corps (10) dans sa totalité peut être vissé dans un alésage correspondant d'un dispositif de serrage.
  9. Élément de serrage selon la revendication 8,
    caractérisé en ce que
    sur l'extérieur de la section de fixation cylindrique (40) sont prévus au moins deux orifices d'entrée pour amener un fluide comprimé, les orifices d'entrée étant distants l'un de l'autre en direction d'un axe de cylindre de la section de fixation (40).
EP09700826A 2008-01-04 2009-01-03 Élément de serrage Not-in-force EP2234762B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200810004287 DE102008004287A1 (de) 2008-01-04 2008-01-04 Spannelement
PCT/EP2009/000008 WO2009087074A1 (fr) 2008-01-04 2009-01-03 Élément de serrage

Publications (2)

Publication Number Publication Date
EP2234762A1 EP2234762A1 (fr) 2010-10-06
EP2234762B1 true EP2234762B1 (fr) 2012-09-26

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ID=40626664

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09700826A Not-in-force EP2234762B1 (fr) 2008-01-04 2009-01-03 Élément de serrage

Country Status (4)

Country Link
EP (1) EP2234762B1 (fr)
CN (1) CN101959649B (fr)
DE (1) DE102008004287A1 (fr)
WO (1) WO2009087074A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202011101213U1 (de) * 2011-05-20 2012-08-21 Wilhelm Altendorf Gmbh & Co Kg Spannelement für Plattensäge
US8678362B1 (en) * 2012-10-29 2014-03-25 Vektek, Inc. Adjustable link clamp
CN106181832A (zh) * 2016-09-23 2016-12-07 江西洪都航空工业集团有限责任公司 带锁扣卡板端头接头
CN117066848B (zh) * 2023-08-01 2024-06-04 南京泰普森自动化设备有限公司 承托支撑组件、定位支撑装置及压装设备

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4121141A1 (de) * 1991-06-26 1993-01-07 Safet Vajzovic Spannvorrichtung
DE4307058A1 (de) * 1993-03-06 1994-09-08 David Fischer Spannvorrichtung zum Spannen von Werkstücken auf Maschinentischen oder Paletten
KR100308826B1 (ko) 1994-01-18 2001-12-15 요네자와 게이타로 클램프장치
DE102004004413A1 (de) * 2004-01-29 2005-08-18 Frank Entzmann Spannvorrichtung
DE102004056229A1 (de) * 2004-11-22 2006-05-24 Günter Neumann GmbH Kraftspanner

Also Published As

Publication number Publication date
CN101959649A (zh) 2011-01-26
DE102008004287A1 (de) 2009-07-09
EP2234762A1 (fr) 2010-10-06
WO2009087074A1 (fr) 2009-07-16
CN101959649B (zh) 2013-07-24

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