EP2548264B1 - Connection element for a switching device - Google Patents

Connection element for a switching device Download PDF

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Publication number
EP2548264B1
EP2548264B1 EP10722940.3A EP10722940A EP2548264B1 EP 2548264 B1 EP2548264 B1 EP 2548264B1 EP 10722940 A EP10722940 A EP 10722940A EP 2548264 B1 EP2548264 B1 EP 2548264B1
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EP
European Patent Office
Prior art keywords
press
connection
workpiece
connection element
thread
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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.)
Revoked
Application number
EP10722940.3A
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German (de)
French (fr)
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EP2548264A1 (en
Inventor
Andreas Leitl
Frank Rümpler
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Siemens AG
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Siemens AG
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Publication of EP2548264A1 publication Critical patent/EP2548264A1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5855—Electric connections to or between contacts; Terminals characterised by the use of a wire clamping screw or nut
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/08—Terminals; Connections
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
    • H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending

Definitions

  • the invention relates to a connection element for a switching device with a terminal bracket and a screw with connection plate.
  • connection screws The frictional connection between a connecting cable and a switching device, in particular a low-voltage switching device is realized, among other things with connection screws.
  • the thread for these screws is formed inexpensively in a passage in the connection part.
  • FIG. 1 shows a connecting bracket 1, which has a U-shaped portion 2 and an L-shaped portion 3.
  • a leg 4 of the L-section 3 a bore 5 is arranged with an internal thread 6.
  • This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8.
  • the connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.
  • connection element for a switching device
  • a connection element for a switching device
  • the positioning of this nut takes place here by means of a corresponding contour in the housing or by an additional part, which is additionally mounted in the housing.
  • This embodiment is from the Fig. 2 out.
  • a nut 9 is arranged, through which the screw 7 is guided.
  • a contour 10 for positioning the nut 9 is a contour 10, which is formed either as an additional part or as a molding in the housing.
  • the disadvantage of this embodiment is that an additional part for positioning the nut is needed, which also requires additional space.
  • the EP 0 559 585 A1 discloses a connection element for a switching device with a terminal bracket and a screw with connection plate, wherein the screw is fixed by a Einpressteil the terminal bracket and wherein the Einpressteil has a bore which is at least partially threaded.
  • the object of the present invention is to provide a connection element for a switching device, which provides a secure thread resistance for the connection parts and also process technology allows easy handling.
  • connection element having the features of patent claim 1.
  • connection element for a switching device with a terminal bracket having a bore, and a screw with connection plate is characterized in that the screw is fastened by a Einpressteil, in particular with a thread on the terminal bracket.
  • a connection element instead of the thread passage.
  • this Hole is pressed in the following a Einpressteil with a thread, preferably an internal thread for the terminal screw.
  • a Einpressteil with an external thread is conceivable, which serves as a threaded bolt and on which then a nut is screwed. In this case, the screw with the Einpressteil is made in one piece.
  • connections are made here between different components via press-fit parts, which are pressed in the workpiece to form connections with large connection and holding forces.
  • Such Einpressmaschine are also used to control individual components and cost-effectively connect with each other. Due to the controlled compression of the press-fit parts provided for the connection, the compounds achieved with them can also meet far-reaching requirements.
  • Einpressmaschine can be inserted with different injection forces in a workpiece, so that they can withstand especially large tensile or compressive forces.
  • the press-fit part can sometimes also act on high rotational forces or torques, which lead to undesired twisting of the press-fit part if the insert part is insufficiently anchored in the workpiece ,
  • the press-fit parts according to the invention are provided with at least one knurl which has an arrangement of material teeth or material grooves surrounding the press-fit part.
  • the knurls intersect when pressing a Einpressteil in a workpiece in the wall of a recess provided for pressing and thus prevent upon application of the compressed press-fit with a torque twisting thereof in the recess.
  • the material flow must be made for a secure pressing of the press-fit in the workpiece so that sufficient material of the workpiece between the teeth or Riefen the knurling flows in and thus fixed the Einpressteil.
  • This material flow is dependent on a large number of predetermined material parameters, including, for example, the hardness and toughness of the material of the workpiece.
  • the Einpressteil in particular a press-in nut has a bore which is at least partially provided with a thread, in particular an internal thread. This thread allows the inclusion of a screw with washer or nut, can be fixed through the possible connection lines.
  • a toothed ring of cutting teeth is arranged around the bore.
  • An essential idea of the invention is that the inserted and pressed into the recess of the workpiece shaft of the press-in part has at least two different Einpresskonturen.
  • the Einpresskonturen are here around the shaft encircling teeth, grooves or material projections.
  • the provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions of Pressing contours is possible.
  • the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation At different times during the pressing takes place and consequently different material sections with different injection contours come into engagement.
  • the forms of compression according to the invention may include pressing the insert into a recess of a workpiece, wherein the connection between the insert and the workpiece results from a material flow of the insert and / or the workpiece as a result of the insertion process.
  • a pressing may be included, in which the press-in part mechanically formed after the insertion of the press-fit into the recess of the workpiece, in particular a shank is widened, so that a connection between press-fit and workpiece results.
  • a pressing may be included, in which the workpiece is mechanically formed after inserting the press-fit into the recess of the workpiece, so that as a result of the material flow of the material of the workpiece in attachment areas of the press-fit results in a connection between press-fit and workpiece.
  • all mixed forms of this injection mold can also be included.
  • the Einpressteil may be formed in particular cylindrical for this process. However, any other fit for the Einpressteil is conceivable.
  • the press-in part is pressed by at least two different press-in contours on the connection bracket.
  • the provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or Scoring or the material protrusions of Einpresskonturen is made possible.
  • the at least two press-in contours are offset from one another by a non-knurled section of the shank, in particular by a non-knurled groove.
  • material can also flow into the non-knurled section of the shaft or into the non-knurled groove and thus permits targeted mechanical influencing and control of the material deformation during the pressing.
  • the non-knurled portion of the shank or the non-knurled groove can thus improve the engagement of the material of the workpiece in one of the at least two knurls due to the material deflection.
  • the material flowing into the non-knurled portion of the shank or into the non-knurled groove secures the press-in part by an improved holding force with respect to tensile and compressive forces acting on the press-in part. Accordingly, it is also possible to ensure the anchoring of the press-in part in the workpiece only on the basis of the non-knurled portion of the shaft or in the non-knurled groove material.
  • the Einpresskonturen are formed as a cylindrical extension or as a sprocket of cutting teeth. Due to these different injection contours, it is basically possible to better tune the injection dimensions or injection geometries to the flow behavior of the material of the workpiece, so that during pressing of the insert into the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions the Einpresskonturen is enabled.
  • the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation takes place at different times during the pressing and consequently different material sections with respectively different press-in contours engage.
  • the pressed-in part with thread and the connecting bracket are the same temperature during the pressing process.
  • the material of the pressed-in part with thread would contract somewhat or would be slightly widened by an increase in temperature of the connecting bracket.
  • the workpieces do not have to be subjected to a temperature change.
  • the present invention is characterized in that within the cost-effective connection production, the connecting element according to the invention including the press-in part is completely finished with a thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread for the terminal screw, bending of the connecting element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.
  • Fig. 1 shows a connecting bracket 1 of the prior art, which has a U-shaped portion 2 and an L-shaped portion 3.
  • a leg 4 of the L-section 3 a bore 5 is arranged with an internal thread 6.
  • This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8.
  • the connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.
  • FIG. 2 shows a further embodiment of a connecting bracket with screw from the prior art.
  • a connecting bracket 1 is shown with a U-shaped portion 2 and an L-shaped portion 3, which has a bore 5 in a leg 4 of the connecting bracket 1, through which a screw 7 can be inserted with a connecting plate 8.
  • a nut 9 is arranged, through which the screw 7 is guided.
  • a contour 10 is formed either as an additional part or training in the housing.
  • Fig. 3 shows a connecting element 11 according to the invention with a Einpressteil 12 threaded.
  • the connecting element 11 according to the invention has a connecting bracket 13, which has a U-shaped portion 14 and an L-shaped portion 15 attached thereto.
  • the L-shaped portion 15 has a leg 16, in which a bore 16a for receiving a screw 17th is trained.
  • the screw 17 is guided through a connecting disk 18, the bore 16a in the leg 16 of the L-shaped portion 15 of the connecting bracket 13 and by the press-in part 12.
  • the press-in part 12 is pressed on the opposite side to the screw 17 in the leg 16 of the L-shaped portion 15 in the connection element 11.
  • the press-in part 12 is preferably cylindrical and has an annular body 19 with an end face region 20, an outer circumferential surface 21, a bore 23 provided at least in sections with an internal thread 22 and a seat surface region 24.
  • the Einpressteil 12 also has Einpresskonturen formed as a ring in the form of a cylindrical extension 25 in which the thread 22 is arranged, as well as in the form of a ring gear 26 which is arranged around the cylindrical extension 25 and rests on the Wegzan Scheme 24.
  • Fig. 5 the press-in part 12 according to the invention is shown with thread 22.
  • Fig. 5 shows the arranged around the thread 22 cylindrical extension 25 and the ring gear 26, which serve as Einpresskonturen.
  • Fig. 6 shows the Einpressteil 12 after the press-in process in a workpiece.
  • this is the connecting bracket 13.
  • the connecting bracket 13 In the Fig. 6 is shown how attach the material of the connecting bracket 13 by the Einpresskonturen in the form of the cylindrical extension 25 and the ring gear 26 to the outer contours of the press-12. By this engagement of the workpiece material in the Einpresskonturen the press-in a sufficient rotational fixation is ensured.
  • connection element according to the invention including the press-in part is completely finished with an internal thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread, in particular an internal thread for the connection screw, the bending of the connection element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.

Description

Die Erfindung betrifft ein Anschlusselement für ein Schaltgerät mit einem Anschlussbügel und einem Schraubelement mit Anschlussscheibe.The invention relates to a connection element for a switching device with a terminal bracket and a screw with connection plate.

Die kraftschlüssige Verbindung zwischen einer Anschlussleitung und einem Schaltgerät, insbesondere einem Niederspannungsschaltgerät wird unter Anderem mit Anschlussschrauben realisiert. Das Gewinde für diese Schrauben wird dabei kostengünstig in einem Durchzug im Anschlussteil eingeformt.The frictional connection between a connecting cable and a switching device, in particular a low-voltage switching device is realized, among other things with connection screws. The thread for these screws is formed inexpensively in a passage in the connection part.

Aus dem Stand der Technik ist hierzu die in Fig. 1 dargestellte Ausführungsform bekannt. Fig. 1 zeigt einen Anschlussbügel 1, der einen U-förmigen Abschnitt 2 sowie einen L-förmigen Abschnitt 3 aufweist. In einem Schenkel 4 des L-Abschnitts 3 ist eine Bohrung 5 mit einem Innengewinde 6 angeordnet. Dieses Innengewinde 6 dient dazu, eine von oben eingeführte Schraube 7 mit einer Anschlussscheibe 8 aufzunehmen. Für die Anschlussteile werden elektrisch gut leitende Materialen mit kleinen mechanischen Festigkeitswerten verwendet. Werden in diesen Materialen - wie oben beschrieben - Gewinde geformt, reichen die Gewindefestigkeiten für die Anschlussteile nicht aus. Es besteht zudem die Möglichkeit, dass beim Anschließen von Drähten ein ungewolltes Verbiegen der Anschlussteile auftritt.From the prior art, this is the in Fig. 1 illustrated embodiment known. Fig. 1 shows a connecting bracket 1, which has a U-shaped portion 2 and an L-shaped portion 3. In a leg 4 of the L-section 3, a bore 5 is arranged with an internal thread 6. This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8. The connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.

Als weitere Ausführungsformen für ein Anschlusselement für ein Schaltgerät ist aus dem Stand der Technik ferner bekannt, unter dem Anschlussteil eine Mutter zu positionieren, in der die Anschlussschraube eingeschraubt wird. Die Positionierung dieser Mutter erfolgt hier mittels einer entsprechenden Kontur im Gehäuse oder durch ein zusätzliches Teil, welches zusätzlich ins Gehäuse montiert wird. Diese Ausführungsform geht aus der Fig. 2 hervor. Auch hier ist ein Anschlussbügel 1 mit einem U-förmigen Abschnitt 2 und einem L-förmigen Abschnitt 3 dargestellt, der in einem Schenkel 4 des Anschlussbügels 1 eine Bohrung 5 aufweist, durch die eine Schraube 7 mit einer Anschlussscheibe 8 eingeführt werden kann. Unterhalb des L-förmigen Abschnitts 3 des Anschlussbügels 1 ist eine Mutter 9 angeordnet, durch die die Schraube 7 geführt ist. Zur Positionierung der Mutter 9 dient eine Kontur 10, die entweder als zusätzliches Teil oder als Ausformung im Gehäuse ausgebildet ist. Der Nachteil dieser Ausführungsform besteht darin, dass ein zusätzliches Teil zur Positionierung der Mutter benötigt wird, das zudem auch einen zusätzlichen Bauraum erfordert.As further embodiments of a connection element for a switching device, it is further known from the prior art, to position a nut under the connection part, in which the terminal screw is screwed. The positioning of this nut takes place here by means of a corresponding contour in the housing or by an additional part, which is additionally mounted in the housing. This embodiment is from the Fig. 2 out. Again, a terminal bracket 1 with a U-shaped section 2 and an L-shaped section 3, which has a bore 5 in a leg 4 of the connecting bracket 1, through which a screw 7 with a connecting disk 8 can be inserted. Below the L-shaped portion 3 of the connecting bracket 1, a nut 9 is arranged, through which the screw 7 is guided. For positioning the nut 9 is a contour 10, which is formed either as an additional part or as a molding in the housing. The disadvantage of this embodiment is that an additional part for positioning the nut is needed, which also requires additional space.

Die EP 0 559 585 A1 offenbart ein Anschlusselement für ein Schaltgerät mit einem Anschlussbügel und einem Schraubelement mit Anschlussscheibe, wobei das Schraubelement durch ein Einpressteil am Anschlussbügel befestigt ist und wobei das Einpressteil eine Bohrung aufweist, die zumindest abschnittsweise mit einem Gewinde versehen ist.The EP 0 559 585 A1 discloses a connection element for a switching device with a terminal bracket and a screw with connection plate, wherein the screw is fixed by a Einpressteil the terminal bracket and wherein the Einpressteil has a bore which is at least partially threaded.

Demgemäß besteht die Aufgabe der vorliegenden Erfindung darin, ein Anschlusselement für ein Schaltgerät zu schaffen, das eine sichere Gewindefestigkeit für die Anschlussteile bietet und zudem prozesstechnisch eine leichte Handhabung ermöglicht.Accordingly, the object of the present invention is to provide a connection element for a switching device, which provides a secure thread resistance for the connection parts and also process technology allows easy handling.

Diese Aufgabe wird durch ein Anschlusselement mit den Merkmalen des Patentanspruchs 1 gelöst. Vorteilhafte Aus- und Weiterbildungen, welche einzeln oder in Kombination eingesetzt werden können, sind der Gegenstand der abhängigen Ansprüche.This object is achieved by a connection element having the features of patent claim 1. Advantageous embodiments and developments, which can be used individually or in combination, are the subject of the dependent claims.

Erfindungsgemäß wird diese Aufgabe durch ein Anschlusselement für ein Schaltgerät mit einem Anschlussbügel, der eine Bohrung aufweist, und einem Schraubelement mit Anschlussscheibe gelöst. Die Erfindung zeichnet sich dabei dadurch aus, dass das Schraubelement durch ein Einpressteil, insbesondere mit einem Gewinde am Anschlussbügel befestigt ist. Erfindungsgemäß wird innerhalb der Fertigung des Anschlusselementes anstatt des Gewindedurchzuges nur ein Loch eingebracht. In dieses Loch wird im Folgenden ein Einpressteil mit einem Gewinde, vorzugsweise einem Innengewinde für die Anschlussschraube eingepresst. Als weitere Ausführungsform ist auch ein Einpressteil mit einem Außengewinde denkbar, das als Gewindebolzen dient und auf welches dann eine Mutter geschraubt wird. Für diesen Fall ist das Schraubelement mit dem Einpressteil einteilig ausgeführt.According to the invention this object is achieved by a connection element for a switching device with a terminal bracket having a bore, and a screw with connection plate. The invention is characterized in that the screw is fastened by a Einpressteil, in particular with a thread on the terminal bracket. According to the invention, only one hole is made in the production of the connection element instead of the thread passage. In this Hole is pressed in the following a Einpressteil with a thread, preferably an internal thread for the terminal screw. As a further embodiment, a Einpressteil with an external thread is conceivable, which serves as a threaded bolt and on which then a nut is screwed. In this case, the screw with the Einpressteil is made in one piece.

Erfindungsgemäß werden hier Verbindungen zwischen unterschiedlichen Komponenten über Einpressteile hergestellt, welche zur Ausbildung von Verbindungen mit großen Verbindungsund Haltekräften im Werkstück verpresst werden. Derartige Einpressteile werden zudem auch dazu verwendet, um einzelne Bauteile kontrolliert und kosteneffizient miteinander zu verbinden. Auf Grund des kontrollierten Verpressens der zur Verbindung vorgesehenen Einpressteile können die mit ihnen erzielten Verbindungen auch weitreichenden Anforderungen gerecht werden. Insbesondere können Einpressteile mit unterschiedlichen Einpresskräften in ein Werkstück eingefügt werden, so dass sie insbesondere auch großen Zug- beziehungsweise Druckkräften standhalten können.According to the invention, connections are made here between different components via press-fit parts, which are pressed in the workpiece to form connections with large connection and holding forces. Such Einpressteile are also used to control individual components and cost-effectively connect with each other. Due to the controlled compression of the press-fit parts provided for the connection, the compounds achieved with them can also meet far-reaching requirements. In particular Einpressteile can be inserted with different injection forces in a workpiece, so that they can withstand especially large tensile or compressive forces.

Abgesehen von den Zug- und Druckkräften, welche typischerweise in Verlängerung zu einer Einpressrichtung des Einpressteils in das Werkstück wirken, können auf das Einpressteil mitunter auch hohe Drehkräfte oder Drehmomente einwirken, welche bei nicht ausreichender Verankerung des Einpressteils im Werkstück zu einem ungewünschten Verdrehen des Einpressteils führen.Apart from the tensile and compressive forces, which typically act as an extension of a press-fitting of the press-fit part into the workpiece, the press-fit part can sometimes also act on high rotational forces or torques, which lead to undesired twisting of the press-fit part if the insert part is insufficiently anchored in the workpiece ,

Um einem solchen unerwünschten Vorgang entgegenzuwirken, sind die erfindungsgemäßen Einpressteile mit mindestens einer Rändel versehen, welche eine um das Einpressteil umlaufende Anordnung von Materialzähnen beziehungsweise Materialriefen aufweist. Die Rändel schneiden beim Verpressen eines Einpressteils in einem Werkstück in die Wandung einer zum Verpressen vorgesehenen Aussparung ein und verhindern somit bei Beaufschlagen des verpressten Einpressteils mit einem Drehmoment ein Verdrehen desselben in der Aussparung.In order to counteract such an undesired process, the press-fit parts according to the invention are provided with at least one knurl which has an arrangement of material teeth or material grooves surrounding the press-fit part. The knurls intersect when pressing a Einpressteil in a workpiece in the wall of a recess provided for pressing and thus prevent upon application of the compressed press-fit with a torque twisting thereof in the recess.

Beim Verpressen eines eine solche Rändel aufweisenden Einpressteils in einem Werkstück kommt es während des Einpressvorgangs zu einem Materialfluss im Bereich der Wandung der Aussparung, wobei der Materialfluss zu einem sicheren Verpressen des Einpressteils im Werkstück so erfolgen muss, dass ausreichend Material des Werkstückes zwischen die Zähne beziehungsweise Riefen der Rändel einfließt und folglich das Einpressteil fixiert. Dieser Materialfluss ist von einer Vielzahl an vorgegebenen Materialkenngrößen abhängig, darunter beispielsweise die Härte und Zähigkeit des Materials des Werkstückes.During pressing of a such a knurl having Einpressteils in a workpiece during the press-in to a flow of material in the wall of the recess, the material flow must be made for a secure pressing of the press-fit in the workpiece so that sufficient material of the workpiece between the teeth or Riefen the knurling flows in and thus fixed the Einpressteil. This material flow is dependent on a large number of predetermined material parameters, including, for example, the hardness and toughness of the material of the workpiece.

Es ist vorteilhaft, wenn das Einpressteil, insbesondere eine Einpressmutter eine Bohrung aufweist, die zumindest abschnittsweise mit einem Gewinde, insbesondere einem Innengewinde versehen ist. Dieses Gewinde ermöglicht die Aufnahme einer Schraube mit Anschlussscheibe oder Mutter, durch die mögliche Anschlussleitungen fixiert werden können.It is advantageous if the Einpressteil, in particular a press-in nut has a bore which is at least partially provided with a thread, in particular an internal thread. This thread allows the inclusion of a screw with washer or nut, can be fixed through the possible connection lines.

In einer besonders vorteilhaften Ausführungsform ist vorgesehen, dass um die Bohrung ein Zahnkranz aus Schneidzähnen angeordnet ist. Ein wesentlicher Gedanke der Erfindung besteht darin, dass der in die Aussparung des Werkstückes eingefügte und verpresste Schaft des Einpressteils wenigstens zwei unterschiedliche Einpresskonturen aufweist. Die Einpresskonturen sind hierbei um den Schaft umlaufende Zähne, Riefen beziehungsweise Materialvorsprünge. Das Vorsehen von zwei unterschiedlichen Einpresskonturen erlaubt grundsätzlich die Einpressdimensionen beziehungsweise Einpressgeometrien auf das Fließverhalten des Materials des Werkstückes besser abzustimmen, so dass beim Einpressen des Einpressteils in die Aussparung des Werkstückes ein besseres Eingreifen des Materials des Werkstückes in die Zähne beziehungsweise Riefen oder um die Materialsvorsprünge der Einpresskonturen ermöglicht wird.In a particularly advantageous embodiment it is provided that a toothed ring of cutting teeth is arranged around the bore. An essential idea of the invention is that the inserted and pressed into the recess of the workpiece shaft of the press-in part has at least two different Einpresskonturen. The Einpresskonturen are here around the shaft encircling teeth, grooves or material projections. The provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions of Pressing contours is possible.

Folglich kann auch bei ungünstigem Fließverhalten des Werkstückes beispielsweise bei einem Werkstück, dessen Material eine hohe Zähigkeit aufweist, die Kombination von wenigstens zwei unterschiedlichen Einpresskonturen auf zwei voneinander verschiedenen Schaftabschnitten noch eine ausreichende Drehfixierung gewährleisten. Die Einpresskonturen können hierbei insbesondere derart angeordnet sein, dass ein Eingriff des Materials des Werkstückes in Folge der Materialumformung zu unterschiedlichen Zeitpunkten während des Einpressens erfolgt und folglich verschiedene Materialabschnitte mit jeweils unterschiedlichen Einpresskonturen in Eingriff gelangen.Consequently, even with unfavorable flow behavior of the workpiece, for example, in a workpiece whose material has a high toughness, the combination of at least two different Einpresskonturen on two mutually different shank portions still ensure sufficient rotational fixation. In this case, the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation At different times during the pressing takes place and consequently different material sections with different injection contours come into engagement.

Unter Verpressen sollen hier alle möglichen Formen des Vernietens verstanden werden. Insbesondere können die erfindungsgemäßen Formen des Verpressens ein Einpressen des Einpressteils in eine Aussparung eines Werkstücks beinhalten, wobei die Verbindung zwischen Einpressteil und Werkstück aus einem Materialfluss des Einpressteils und/oder des Werkstückes in Folge des Einfügevorgangs resultiert. Weiter kann ein Verpressen umfasst sein, bei welchem das Einpressteil nach dem Einfügen des Einpressteils in die Aussparung des Werkstückes mechanisch umgeformt, insbesondere ein Schaft aufgeweitet wird, so dass eine Verbindung zwischen Einpressteil und Werkstück resultiert. Weiter kann ein Verpressen umfasst sein, bei welchem das Werkstück nach dem Einfügen des Einpressteils in die Aussparung des Werkstückes mechanisch umgeformt wird, so dass in Folge des Materialflusses des Materials des Werkstücks in Befestigungsbereiche des Einpressteils eine Verbindung zwischen Einpressteil und Werkstück resultiert. Weiter können auch alle Mischformen dieser Verpressform umfasst sein.Pressing is to be understood here as meaning all possible forms of riveting. In particular, the forms of compression according to the invention may include pressing the insert into a recess of a workpiece, wherein the connection between the insert and the workpiece results from a material flow of the insert and / or the workpiece as a result of the insertion process. Further, a pressing may be included, in which the press-in part mechanically formed after the insertion of the press-fit into the recess of the workpiece, in particular a shank is widened, so that a connection between press-fit and workpiece results. Further, a pressing may be included, in which the workpiece is mechanically formed after inserting the press-fit into the recess of the workpiece, so that as a result of the material flow of the material of the workpiece in attachment areas of the press-fit results in a connection between press-fit and workpiece. Furthermore, all mixed forms of this injection mold can also be included.

Das Einpressteil kann für diesen Prozess insbesondere zylindrisch ausgebildet sein. Es ist jedoch auch jede andere Passform für das Einpressteil denkbar.The Einpressteil may be formed in particular cylindrical for this process. However, any other fit for the Einpressteil is conceivable.

In einer besonders vorteilhaften Ausführungsform ist vorgesehen, dass das Einpressteil durch mindestens zwei unterschiedliche Einpresskonturen am Anschlussbügel eingepresst ist. Das Vorsehen von zwei unterschiedlichen Einpresskonturen erlaubt grundsätzlich die Einpressdimensionen beziehungsweise Einpressgeometrien auf das Fließverhalten des Materials des Werkstückes besser abzustimmen, so dass beim Verpressen des Einpressteils in die Aussparung des Werkstücks ein besseres Eingreifen des Materials des Werkstückes in die Zähne beziehungsweise Riefen oder um die Materialvorsprünge der Einpresskonturen ermöglicht wird.In a particularly advantageous embodiment, it is provided that the press-in part is pressed by at least two different press-in contours on the connection bracket. The provision of two different Einpresskonturen basically allows the Einpressdimensionen or Einpressgeometrien tune better on the flow behavior of the material of the workpiece, so that when pressing the Einpressteils in the recess of the workpiece better engagement of the material of the workpiece in the teeth or Scoring or the material protrusions of Einpresskonturen is made possible.

Bei einer besonders bevorzugten Ausführungsform des Einpressteils sind die wenigstens zwei Einpresskonturen durch einen nicht gerändelten Abschnitt des Schaftes, insbesondere durch eine nicht gerändelte Nut voneinander abgesetzt. Während des Verpressens des Einpressteils kann in Folge des Materialflusses des Materials des Werkstückes auch Material in den nicht gerändelten Abschnitt des Schaftes beziehungsweise in die nicht gerändelte Nut einfließen und erlaubt damit eine gezielte mechanische Beeinflussung und Steuerung der Materialumformung während des Verpressens. Der nicht gerändelte Abschnitt des Schaftes beziehungsweise die nicht gerändelte Nut kann folglich das Eingreifen des Materials des Werkstückes in eine der wenigstens zwei Rändel in Folge der Materialumlenkung verbessern. Zudem sichert das im nicht gerändelten Abschnitt des Schaftes beziehungsweise in die nicht gerändelte Nut einfließende Material das Einpressteil durch eine verbesserte Haltekraft in Bezug auf Zug- und Druckkräfte, die auf das Einpressteil einwirken. Demgemäß ist es auch möglich, die Verankerung des Einpressteils im Werkstück lediglich auf Grund des im nicht gerändelten Abschnitt des Schaftes beziehungsweise in die nicht gerändelte Nut einfließenden Materials zu gewährleisten.In a particularly preferred embodiment of the press-in part, the at least two press-in contours are offset from one another by a non-knurled section of the shank, in particular by a non-knurled groove. During the pressing of the press-in part, as a result of the material flow of the material of the workpiece, material can also flow into the non-knurled section of the shaft or into the non-knurled groove and thus permits targeted mechanical influencing and control of the material deformation during the pressing. The non-knurled portion of the shank or the non-knurled groove can thus improve the engagement of the material of the workpiece in one of the at least two knurls due to the material deflection. In addition, the material flowing into the non-knurled portion of the shank or into the non-knurled groove secures the press-in part by an improved holding force with respect to tensile and compressive forces acting on the press-in part. Accordingly, it is also possible to ensure the anchoring of the press-in part in the workpiece only on the basis of the non-knurled portion of the shaft or in the non-knurled groove material.

Es ist insbesondere von Vorteil, wenn die Einpresskonturen als zylindrischer Fortsatz beziehungsweise als Zahnkranz aus Schneidzähnen ausgebildet sind. Durch diese unterschiedlichen Einpresskonturen ist es grundsätzlich möglich, die Einpressdimensionen beziehungsweise Einpressgeometrien auf das Fließverhalten des Materials des Werkstückes besser abzustimmen, so dass beim Verpressen des Einpressteils in die Aussparung des Werkstückes ein besseres Eingreifen des Materials des Werkstückes in die Zähne beziehungsweise Riefen oder um die Materialvorsprünge der Einpresskonturen ermöglicht wird.It is particularly advantageous if the Einpresskonturen are formed as a cylindrical extension or as a sprocket of cutting teeth. Due to these different injection contours, it is basically possible to better tune the injection dimensions or injection geometries to the flow behavior of the material of the workpiece, so that during pressing of the insert into the recess of the workpiece better engagement of the material of the workpiece in the teeth or grooves or the material protrusions the Einpresskonturen is enabled.

Folglich kann auch bei ungünstigem Fließverhalten des Werkstückes, beispielsweise bei einem Werkstück, dessen Material eine hohe Zähigkeit aufweist, die Kombination von wenigstens zwei unterschiedlichen Einpresskonturen auf zwei voneinander verschiedenen Schaftabschnitten noch eine ausreichende Drehfixierung gewährleisten. Die Einpresskonturen können hierbei insbesondere derart angeordnet sein, dass ein Eingriff des Materials des Werkstückes in Folge der Materialumformung zu unterschiedlichen Zeitpunkten während des Verpressens erfolgt und folglich verschiedene Materialabschnitte mit jeweils unterschiedlichen Einpresskonturen in Eingriff gelangen.Consequently, even with unfavorable flow behavior of the workpiece, for example, in a workpiece whose material has a high toughness, the combination of at least two different Einpresskonturen on two mutually different shank sections still ensure sufficient rotational fixation. In this case, the press-in contours may in particular be arranged such that an engagement of the material of the workpiece as a result of the material deformation takes place at different times during the pressing and consequently different material sections with respectively different press-in contours engage.

Insbesondere ist in einer besonders vorteilhaften Ausführungsform vorgesehen, dass das Einpressteil mit Gewinde und der Anschlussbügel beim Einpressvorgang temperaturgleich sind. Das bedeutet, dass für den Einpressvorgang der Anschlussbügel nicht einer Temperaturerhöhung ausgesetzt werden muss, beziehungsweise, dass das Einpressteil keiner Temperaturerniedrigung ausgesetzt werden muss. Durch eine Temperaturerniedrigung würde sich das Material des Einpressteils mit Gewinde etwas zusammenziehen beziehungsweise durch eine Temperaturerhöhung des Anschlussbügels würde dieser etwas aufgeweitet. Beim vorliegenden Einpressvorgang müssen die Werkstücke keiner Temperaturänderung unterzogen werden.In particular, it is provided in a particularly advantageous embodiment that the pressed-in part with thread and the connecting bracket are the same temperature during the pressing process. This means that for the press-fitting of the connecting bracket does not have to be exposed to an increase in temperature, or that the press-in part must be subjected to any temperature reduction. By lowering the temperature, the material of the pressed-in part with thread would contract somewhat or would be slightly widened by an increase in temperature of the connecting bracket. In the present press-fitting process, the workpieces do not have to be subjected to a temperature change.

Die vorliegende Erfindung zeichnet sich dadurch aus, dass innerhalb der kostengünstigen Anschlussfertigung das erfindungsgemäße Anschlusselement inklusive des Einpressteils mit einem Gewinde komplett fertig gestellt wird und in der Gerätemontage nur ein Teil montiert wird. Damit verbunden ist eine Kostenreduzierung für Maschinen, Montageabläufe und Lagerhaltung. Durch die entsprechende Form des Einpressteils mit Gewinde für die Anschlussschraube wird das Verbiegen des Anschlusselementes beim Anschließen des Anschlussdrahtes verhindert. Die Gewindefestigkeit der Anschlussstelle entspricht somit den Vorgaben.The present invention is characterized in that within the cost-effective connection production, the connecting element according to the invention including the press-in part is completely finished with a thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread for the terminal screw, bending of the connecting element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.

Weiter Vorteile und Ausführungen der Erfindung werden nachfolgend anhand von Ausführungsbeispielen sowie anhand der Zeichnung erläutert.Further advantages and embodiments of the invention will be explained below with reference to embodiments and with reference to the drawing.

Dabei zeigen schematisch:

  • Fig. 1 in einer perspektivischen Darstellung einen Anschlussbügel mit Anschlussschraube und Anschlussscheibe aus dem Stand der Technik;
  • Fig. 2 in einer perspektivischen Darstellung einen Anschlussbügel mit Anschlussschraube und Anschlussscheibe sowie zusätzlicher Mutter aus dem Stand der Technik;
  • Fig. 3 in einer perspektivischen Darstellung ein erfindungsgemäßes Anschlusselement mit Einpressteil mit Gewinde;
  • Fig. 4 in einer perspektivischen Darstellung ein erfindungsgemäßes Einpressteil mit Gewinde;
  • Fig. 5 in einer perspektivischen Darstellung ein Einpressteil aus Fig. 4 mit Innengewinde;
  • Fig. 6 in einer Schnittdarstellung das in ein Werkstück eingepresste Einpressteil.
Here are shown schematically:
  • Fig. 1 in a perspective view of a connecting bracket with terminal screw and connection plate from the prior art;
  • Fig. 2 in a perspective view a connecting bracket with terminal screw and connection plate and additional nut from the prior art;
  • Fig. 3 in a perspective view of an inventive connecting element with Einpressteil threaded;
  • Fig. 4 in a perspective view of an inventive Einpressteil threaded;
  • Fig. 5 in a perspective view of a press-in part Fig. 4 with internal thread;
  • Fig. 6 in a sectional view of the pressed-in a workpiece Einpressteil.

Fig. 1 zeigt einen Anschlussbügel 1 aus dem Stand der Technik, der einen U-förmigen Abschnitt 2 sowie einen L-förmigen Abschnitt 3 aufweist. In einem Schenkel 4 des L-Abschnitts 3 ist eine Bohrung 5 mit einem Innengewinde 6 angeordnet. Dieses Innengewinde 6 dient dazu, eine von oben eingeführte Schraube 7 mit einer Anschlussscheibe 8 aufzunehmen. Für die Anschlussteile werden elektrisch gut leitende Materialen mit kleinen mechanischen Festigkeitswerten verwendet. Werden in diesen Materialen - wie oben beschrieben - Gewinde geformt, reichen die Gewindefestigkeiten für die Anschlussteile nicht aus. Es besteht zudem die Möglichkeit, dass beim Anschließen von Drähten ein ungewolltes Verbiegen der Anschlussteile auftritt. Fig. 1 shows a connecting bracket 1 of the prior art, which has a U-shaped portion 2 and an L-shaped portion 3. In a leg 4 of the L-section 3, a bore 5 is arranged with an internal thread 6. This internal thread 6 serves to receive a screw 7 introduced from above with a connecting disk 8. The connecting parts use electrically good conducting materials with low mechanical strength values. If threads are formed in these materials as described above, the thread strengths for the connection parts are insufficient. There is also the possibility that when connecting wires unwanted bending of the connecting parts occurs.

Aus der Fig. 2 geht eine weitere Ausführungsform für einen Anschlussbügel mit Schraube aus dem Stand der Technik hervor. Auch hier ist ein Anschlussbügel 1 mit einem U-förmigen Abschnitt 2 und einem L-förmigen Abschnitt 3 dargestellt, der in einem Schenkel 4 des Anschlussbügels 1 eine Bohrung 5 aufweist, durch die eine Schraube 7 mit einer Anschlussscheibe 8 eingeführt werden kann. Unterhalb des L-förmigen Abschnitts 3 des Anschlussbügels 1 ist eine Mutter 9 angeordnet, durch die die Schraube 7 geführt ist. Zur Positionierung der Mutter 9 dient eine Kontur 10, die entweder als zusätzliches Teil oder als Ausbildung im Gehäuse ausgebildet ist.From the Fig. 2 shows a further embodiment of a connecting bracket with screw from the prior art. Again, a connecting bracket 1 is shown with a U-shaped portion 2 and an L-shaped portion 3, which has a bore 5 in a leg 4 of the connecting bracket 1, through which a screw 7 can be inserted with a connecting plate 8. Below the L-shaped portion 3 of the connecting bracket 1, a nut 9 is arranged, through which the screw 7 is guided. For positioning the nut 9 is a contour 10, which is formed either as an additional part or training in the housing.

Fig. 3 zeigt ein erfindungsgemäßes Anschlusselement 11 mit einem Einpressteil 12 mit Gewinde. Das erfindungsgemäße Anschlusselement 11 weist einen Anschlussbügel 13 auf, der einen U-förmigen Abschnitt 14 aufweist sowie einen daran angefügten L-förmigen Abschnitt 15. Der L-förmige Abschnitt 15 weist einen Schenkel 16 auf, in welchem eine Bohrung 16a zur Aufnahme einer Schraube 17 ausgebildet ist. Die Schraube 17 ist durch eine Anschlussscheibe 18, die Bohrung 16a im Schenkel 16 des L-förmigen Abschnitts 15 des Anschlussbügels 13 sowie durch das Einpressteil 12 geführt. Das Einpressteil 12 ist auf der gegenüberliegenden Seite zur Schraube 17 im Schenkel 16 des L-förmigen Abschnitts 15 im Anschlusselement 11 eingepresst. Fig. 3 shows a connecting element 11 according to the invention with a Einpressteil 12 threaded. The connecting element 11 according to the invention has a connecting bracket 13, which has a U-shaped portion 14 and an L-shaped portion 15 attached thereto. The L-shaped portion 15 has a leg 16, in which a bore 16a for receiving a screw 17th is trained. The screw 17 is guided through a connecting disk 18, the bore 16a in the leg 16 of the L-shaped portion 15 of the connecting bracket 13 and by the press-in part 12. The press-in part 12 is pressed on the opposite side to the screw 17 in the leg 16 of the L-shaped portion 15 in the connection element 11.

In Fig. 4 ist das erfindungsgemäße Einpressteil 12 dargestellt. Das Einpressteil 12 ist vorzugsweise zylindrisch ausgebildet und weist einen Ringkorpus 19 mit einem Stirnflächenbereich 20, einer Außenumgangsfläche 21, einer zumindest abschnittsweise mit einem Innengewinde 22 versehenen Bohrung 23 sowie einen Sitzflächenbereich 24 auf. Das Einpressteil 12 verfügt außerdem über Einpresskonturen, die als Ring in Form eines zylindrischen Fortsatzes 25, in welchem das Gewinde 22 angeordnet ist, sowie in Form eines Zahnkranzes 26 ausgebildet sind, der um den zylindrischen Fortsatz 25 angeordnet ist und auf dem Sitzflächenbereich 24 aufliegt.In Fig. 4 the press-in part 12 according to the invention is shown. The press-in part 12 is preferably cylindrical and has an annular body 19 with an end face region 20, an outer circumferential surface 21, a bore 23 provided at least in sections with an internal thread 22 and a seat surface region 24. The Einpressteil 12 also has Einpresskonturen formed as a ring in the form of a cylindrical extension 25 in which the thread 22 is arranged, as well as in the form of a ring gear 26 which is arranged around the cylindrical extension 25 and rests on the Sitzflächenbereich 24.

In Fig. 5 ist das erfindungsgemäße Einpressteil 12 mit Gewinde 22 dargestellt. Fig. 5 zeigt den um das Gewinde 22 angeordneten zylindrischen Fortsatz 25 sowie den Zahnkranz 26, die als Einpresskonturen dienen.In Fig. 5 the press-in part 12 according to the invention is shown with thread 22. Fig. 5 shows the arranged around the thread 22 cylindrical extension 25 and the ring gear 26, which serve as Einpresskonturen.

Fig. 6 zeigt das Einpressteil 12 nach dem Einpressvorgang in ein Werkstück. Im vorliegenden Fall ist dies der Anschlussbügel 13. In der Fig. 6 ist dargestellt, wie sich das Material des Anschlussbügels 13 durch die Einpresskonturen in Form des zylindrischen Fortsatzes 25 und des Zahnkranzes 26 an die Außenkonturen des Einpressteils 12 anfügen. Durch dieses Eingreifen des Werkstückmaterials in die Einpresskonturen des Einpressteils wird eine ausreichende Drehfixierung gewährleistet. Fig. 6 shows the Einpressteil 12 after the press-in process in a workpiece. In the present case, this is the connecting bracket 13. In the Fig. 6 is shown how attach the material of the connecting bracket 13 by the Einpresskonturen in the form of the cylindrical extension 25 and the ring gear 26 to the outer contours of the press-12. By this engagement of the workpiece material in the Einpresskonturen the press-in a sufficient rotational fixation is ensured.

Die vorliegende Erfindung zeichnet sich dadurch aus, dass innerhalb der kostengünstigen Anschlussfertigung das erfindungsgemäße Anschlusselement inklusive des Einpressteils mit einem Innengewinde komplett fertig gestellt wird und in der Gerätemontage nur ein Teil montiert wird. Damit verbunden ist eine Kostenreduzierung für Maschinen, Montageabläufe und Lagerhaltung. Durch die entsprechende Form des Einpressteils mit Gewinde, insbesondere Innengewinde für die Anschlussschraube wird das Verbiegen des Anschlusselementes beim Anschließen des Anschlussdrahtes verhindert. Die Gewindefestigkeit der Anschlussstelle entspricht somit den Vorgaben.The present invention is characterized in that within the cost-effective connection production, the connection element according to the invention including the press-in part is completely finished with an internal thread and only a part is mounted in the device assembly. This is associated with a cost reduction for machines, assembly processes and warehousing. Due to the corresponding shape of the pressed-in part with a thread, in particular an internal thread for the connection screw, the bending of the connection element when connecting the connecting wire is prevented. The thread strength of the connection point thus corresponds to the specifications.

Claims (8)

  1. Connection element (11) for a switching device, comprising a connection clip (13) and a screwing element (17) with connection disk (18), wherein the screwing element (17) is attached to the connection clip (13) by a press-in part (12), wherein the press-in part (12) has a bore (23) which is provided with a thread (22) at least in sections, characterised in that a toothed rim (26) of cutting teeth is disposed around the bore (23).
  2. Connection element (11) according to claim 1, characterised in that the press-in part (12) is cylindrical.
  3. Connection element (11) according to one of the preceding claims, characterised in that the press-in part (12) is pressed in by at least two different press-in contours on the connection clip (13).
  4. Connection element (11) according to one of the preceding claims, characterised in that the press-in contours are implemented as a cylindrical extension (25) and a toothed rim (26) of cutting teeth.
  5. Connection element (11) according to one of the preceding claims, characterised in that the press-in part (12) and the connection clip (13) are at the same temperature during the pressing-in process.
  6. Connection element (11) according to one of the preceding claims, characterised in that the screwing element (17) and the press-in part (12) are implemented in one piece.
  7. Connection element (11) according to one of the preceding claims, characterised in that the press-in part (12) has an internal thread.
  8. Connection element (11) according to claim 6, characterised in that the press-in part (12) has an external thread.
EP10722940.3A 2010-05-20 2010-05-20 Connection element for a switching device Revoked EP2548264B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2010/003103 WO2011144225A1 (en) 2010-05-20 2010-05-20 Connection element for a switching device

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EP2548264A1 EP2548264A1 (en) 2013-01-23
EP2548264B1 true EP2548264B1 (en) 2016-08-24

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CN (1) CN102906940B (en)
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DE102005007203A1 (en) 2004-10-15 2006-04-20 Gustav Klauke Gmbh Lug with nut or functional part, method for producing such a cable lug and nut
US20080146092A1 (en) 2006-12-14 2008-06-19 William Fillmore Taylor Printed circuit board connection
DE102008012997A1 (en) 2008-03-07 2009-09-17 Siemens Aktiengesellschaft Electrical connecting terminal for connecting frequency converters, has conductor rail connecting terminal device with connection element in electrically conductive manner, and thread bolt fixed in conductor rail by press fit

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BR112012029330A2 (en) 2016-07-26
EP2548264A1 (en) 2013-01-23
CN102906940A (en) 2013-01-30
KR20130111961A (en) 2013-10-11
CN102906940B (en) 2016-01-20
KR101615121B1 (en) 2016-04-25
BR112012029330B1 (en) 2019-08-27
WO2011144225A1 (en) 2011-11-24

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