EP2485870A1 - Clamping device - Google Patents

Clamping device

Info

Publication number
EP2485870A1
EP2485870A1 EP10782526A EP10782526A EP2485870A1 EP 2485870 A1 EP2485870 A1 EP 2485870A1 EP 10782526 A EP10782526 A EP 10782526A EP 10782526 A EP10782526 A EP 10782526A EP 2485870 A1 EP2485870 A1 EP 2485870A1
Authority
EP
European Patent Office
Prior art keywords
clamping device
rocker
actuator
adjusting element
clamping
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.)
Granted
Application number
EP10782526A
Other languages
German (de)
French (fr)
Other versions
EP2485870B1 (en
Inventor
Detlev Ulle
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.)
DESTACO Europe GmbH
Original Assignee
DE STA CO Europe GmbH
DESTACO Europe 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 DE STA CO Europe GmbH, DESTACO Europe GmbH filed Critical DE STA CO Europe GmbH
Publication of EP2485870A1 publication Critical patent/EP2485870A1/en
Application granted granted Critical
Publication of EP2485870B1 publication Critical patent/EP2485870B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B25B5/12—Arrangements for positively actuating jaws using toggle links
    • B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/44—Clasp, clip, support-clamp, or required component thereof
    • Y10T24/44966—Clasp, clip, support-clamp, or required component thereof having gripping member shifted by operator

Definitions

  • the invention relates to a tensioning device according to the preamble of independent claim 1.
  • a clamping device of the type mentioned is known from DE 196 45 778 Cl. This consists of a provided with a linearly movable actuator and a pivot shaft for a clamping arm toggle mechanism associated with the means for unlocking an over-center position, wherein
  • CONFIRMATION COPY these are formed from a control element arranged on the actuator (called abutment surface there) and from a rocker which can be brought into adjustment contact with the adjusting element (there called an adjusting pin).
  • the invention has for its object to improve clamping devices of the type mentioned. In particular, a simpler and less expensive to produce and more reliable solution to be created.
  • the actuating element oriented away from the pivot shaft is designed as an actuating extension and the actuator is arranged between the pivot shaft and the rocker.
  • the means for unlocking the located in the over-center position actuating mechanism of the clamping device are thus formed from a linearly movable actuator from the actuator arranged as Stellfortsatz actuating element and further from a with the actuating extension in adjustable contact and actuated by a flank side of the tensioning device rocker so in the Head of the device in the travel of the actuating extension projects, which will be explained in more detail.
  • the rocker is in the form of a small one-armed, entrained by Stellfortsatz to Mattertot Vietnamese lever and accordingly arranged at the appropriate location of the head piece, with its pivot axis and the pivotally connected to it pivot shaft of the clamping arm particularly preferably extends from flank side to flank side of the head piece and thus accessible from the outside.
  • the swingarm remains on reaching the fürtot Vietnameseposition in adjusting contact with the Stellfortsatz so that, if necessary, by actuation of the rocker, the actuator can be solved via it seated Verstellfortsatz from its over-center position.
  • the arrangement of the rocker at Kochtot Vietnamesesent Scheme- and edge side point in the head causes the lateral access to the pivot shaft outside the pivoting range of the clamping arm and thus it does not automatically to threats an accessing hand in itself due to about in the device still existing operating pressure Low tension can come.
  • the present invention provides the advantage of lateral assignment possibility basically arbitrarilyproofder handle for the provision of the rocker, which also, what will also be explained in more detail can change to the effect that it is possible with her, if necessary, the Actuator also press by hand in Automattothuis position to be able to which embodiment is preferred.
  • the actuating extension to be attached to the actuator is, as explained, arranged oriented against the back of the clamping device, d. H. , to the tension arm or schwenkwellenabgewandten narrow side of the head piece out, which also results in the arrangement of the rocker in accordance with the rear portion of the head piece, in the quasi control and connection side usually in such tensioning devices and their sensor technology is housed. If the actuator in the sense of DE 202 09 237 Ul or DE 202 05 994 Ul two-piece and thus variable in length, so in this case the actuating extension is arranged on the knee lever mechanism near part of the actuator.
  • Figure 1 the clamping device in side view and in
  • FIG. 2 shows the clamping device according to FIG. 1 with the preferred embodiment of the rocker
  • FIG. 3 shows the clamping device according to FIG. 2 in an intermediate position
  • FIG. 4 shows the clamping device according to FIG. 2 in the open position
  • Figure 5 enlarges the rocker in side view
  • the clamping device shown greatly simplified in Figures 1 to 4 consists with reference to these figures in a known manner from a housed in a head piece 20, provided with a linear from a (especially pneumatic) drive 22 (for example, a reciprocating piston) of movable actuator 1 Knee lever mechanism 2, which is associated with means for unlocking an over-center division.
  • a (especially pneumatic) drive 22 for example, a reciprocating piston
  • the adjusting mechanism 2 include, as usual, nor an intermediate member 25 for connection between the actuator 1 and a shaft lever 24 a pivot shaft 23 with the clamping arm 21st
  • the actuating element 3 is designed to be remote from the pivoting shaft and designed as a positioning extension and the actuator 1 is arranged between the pivoting shaft 23 and the rocker 4, ie the rocker 4 is designed to be actuatable from one flank side of the tensioning device.
  • the actuating element 3 or the actuating extension is preferably arranged on the knee lever-mechanical end of the actuator 1, as a pin oriented transversely to this and against the back 5 of the head piece 20, d. H. , there is the rocker 4, which is also arranged outside the pivoting sector of the associated with the adjusting mechanism 2 clamping arm 21 on the head piece 20.
  • the rocker 4 only has a nose protruding into the actuating path of the actuating extension 3, which, when turned clockwise, the actuating element 3 or the actuating extension and thus the actuator 1 from the over-center position pushes something down, after which the actuator 1 can be further moved down until the clamping arm 21 reaches its open position (see Figure 4).
  • the stop 8 shown with ensures that the nose of the rocker 4 in dashed lines indicated position continues to protrude into the travel of the actuating element 3 and 4 Stellfortsatzes and can be taken back at stroke of the actuator 1 again.
  • this can be associated with a suitable spring element 9, which is indicated only with a direction of effect arrow, as in Figure 2.
  • the rocker 4 is in an advantageous development provided at its free end 6 with a receiving groove 7 for the engagement of the actuating element 3 and the Stellfortsatzes, as enlarged in Figure 5 illustrates.
  • a stop 8 and possibly also a small spring element 9 are expediently provided.
  • the rocker 4 at its free end 6 two well rounded noses overlapping one another, between which the actuator 3 and the actuating extension can intervene and thereby both the rocker 4 entrains both in upward and downward movement of the actuator 1.
  • the bearing part 12 of the rocker 4 with its bearing pin 10 is provided with a through hole 13, so that advantageous handling elements, such as socket wrenches or the like, from both flank sides of the jig and in a suitable manner against rotation in the through hole can be used if necessary.
  • the actuating element 3 or the actuating extension is arranged on the part 1.1 of the actuator 1 close to the toggle mechanism or associated therewith.

Abstract

The invention relates to a clamping device, comprising a toggle mechanism (2) which is provided with a linearly movable control member (1) and a swivel shaft (23) for a clamping arm (21), means for releasing a position beyond the toggle point being associated with the toggle mechanism, wherein said means are formed by a control element (3) arranged on the control member (1) and a rocker (4) that can be brought into adjusting contact with the control element (3). According to the invention, the control element (3) is designed as a control extension when facing away from the swivel shaft, and the control member (1) is arranged between the swivel shaft (23) and the rocker (4).

Description

Spannvorrichtung  jig
Die Erfindung betrifft eine Spannvorrichtung gemäß dem Oberbegriff des unabhängigen Patentanspruchs 1. The invention relates to a tensioning device according to the preamble of independent claim 1.
Derartige im Wesentlichen aus einem Kopfstück und einem daran angeordneten Antriebselement bestehende Spannvorrichtungen, deren linear bewegliches Stellglied und damit deren Spannarm vom Antrieb aus betätigbar ist und dessen Linearverstellung über eine im Kopfstück angeordnete Stellmechanik in eine Schwenkbewegung des Spannarmes der Vorrichtung umgesetzt wird, sind in der Regel in Übertotpunktposition verstellbar, um ihre Spannposition auch dann beizubehalten, wenn das Betriebsmedium für den Antrieb aus welchen Gründen auch immer ausfallen sollte. Bei Ausfall des Betriebsmediums ist es aber auch nicht ohne weiteres möglich, die unter Spannung stehende Spannvorrichtung aus ihrer Übertotpunktposition zu lösen. Aus diesem Grunde sind solche Spannvorrichtungen in der Regel mit Elementen ausgestattet, die eine solche Rückstellung bzw. Entrastung aus der Übertotpunktstellung vonhand ermöglichen. Verwiesen wird hierzu auf folgende Druckschriften: EP 1 060 839 A2 , US 6,557,841 B2, DE 196 16 441 Cl und DE 20 2007 010 690 Ul . Die Entrastungselemente dieser Spannvorrichtungen sind alle im oberen Bereich des Kopfstückes, damit im Schwenkbereich des Spannarmes liegend, angeordnet, und zwar fluchtend zu sich darunter im Kopfstück erstreckenden Stellgliedern der dort befindlichen Stellmechanik. Such essentially consisting of a head piece and a drive element arranged thereon tensioning devices, the linearly movable actuator and thus the clamping arm is actuated from the drive and the linear adjustment is implemented via a arranged in the head piece adjusting mechanism in a pivoting movement of the clamping arm of the device are usually adjustable in over-center position to maintain its clamping position even if the operating medium for the drive should fail for whatever reason. In case of failure of the operating medium but it is not readily possible to release the tensioning tensioning device from its over-center position. For this reason, such clamping devices are usually equipped with elements that allow such a reset or unlocking from the Übertotpunktstellung by hand. Reference is made to the following documents: EP 1 060 839 A2, US Pat. No. 6,557,841 B2, DE 196 16 441 C1 and DE 20 2007 010 690 Ul. The Entrastungselemente these fixtures are all in the upper region of the head piece, so lying in the pivoting range of the clamping arm, arranged, in alignment with itself including in the head piece extending actuators of the actuating mechanism located there.
Eine Spannvorrichtung der eingangs genannten Art ist nach der DE 196 45 778 Cl bekannt. Diese besteht aus einer mit einem linear beweglichen Stellglied und mit einer Schwenkwelle für einen Spannarm versehenen Kniehebelmechanik, der Mittel zur Entsperrung einer Übertotpunktstellung zugeordnet sind, wobei A clamping device of the type mentioned is known from DE 196 45 778 Cl. This consists of a provided with a linearly movable actuator and a pivot shaft for a clamping arm toggle mechanism associated with the means for unlocking an over-center position, wherein
BESTÄTIGUNGSKOPIE diese aus einem am Stellglied angeordneten Stellelement (dort Anschlagfläche genannt) und aus einer mit dem Stellelement in Verstellkontakt bringbaren Schwinge (dort Stellzapfen genannt) gebildet sind. CONFIRMATION COPY these are formed from a control element arranged on the actuator (called abutment surface there) and from a rocker which can be brought into adjustment contact with the adjusting element (there called an adjusting pin).
Der Erfindung liegt die Aufgabe zugrunde, Spannvorrichtungen der eingangs genannten Art zu verbessern. Insbesondere soll eine einfacher und kostengünstiger herzustellende und betriebssicherere Lösung geschaffen werden. The invention has for its object to improve clamping devices of the type mentioned. In particular, a simpler and less expensive to produce and more reliable solution to be created.
Diese Aufgabe ist mit einer Spannvorrichtung der eingangs genannten und vorbeschriebenen Art nach der Erfindung durch die im Kennzeichen des unabhängigen Patentanspruchs 1 aufgeführten Merkmale gelöst. This object is achieved with a clamping device of the type mentioned above and described according to the invention by the features listed in the characterizing part of the independent claim 1.
Nach der Erfindung ist also vorgesehen, dass das Stellelement schwenkwellenabgewandt orientiert als Stellfortsatz ausgebildet und das Stellglied zwischen der Schwenkwelle und der Schwinge angeordnet ist. According to the invention, it is thus provided that the actuating element oriented away from the pivot shaft is designed as an actuating extension and the actuator is arranged between the pivot shaft and the rocker.
Die Mittel zur Entsperrung der in Übertotpunktposition befindlichen Stellmechanik der Spannvorrichtung sind somit aus einem am linear vom Antrieb bewegbaren Stellglied angeordneten als Stellfortsatz ausgebildeten Stellelement gebildet und ferner aus einer mit dem Stellfortsatz in Verstellkontakt bringbaren und von einer Flankenseite der Spannvorrichtung aus betätigbaren Schwinge, die also im Kopfstück der Vorrichtung in den Stellweg des Stellfortsatzes ragt, was noch näher erläutert wird. Die Schwinge ist dabei in Form eines kleinen einarmigen, vom Stellfortsatz bis zur Übertotpunktstellung mitnehmbaren Hebels ausgebildet und demgemäß an entsprechender Stelle des Kopfstückes angeordnet, wobei sich deren Schwenkachse bzw. die mit ihr fest verbundene Schwenkwelle des Spannarmes besonders bevorzugt von Flankenseite zu Flankenseite des Kopfstückes erstreckt und damit von außen zugänglich ist. Die Schwinge bleibt bei Erreichen der Übertotpunktposition in Verstellkontakt mit dem Stellfortsatz, so dass im Bedarfsfall durch Betätigung der Schwinge das Stellglied via daran sitzendem Verstellfortsatz aus seiner Übertotpunktposition gelöst werden kann. Die Anordnung der Schwinge an Übertotpunktsentsprechen- der und flankenseitiger Stelle im Kopfstück führt dazu, dass der seitliche Zugriff zur Schwenkwelle außerhalb des Schwenkbereiches des Spannarmes liegt und es somit nicht zu Gefährdungen einer zugreifenden Hand bei sich auf Grund etwa in der Vorrichtung noch vorhandenen Betriebsdrucks selbsttätig zurückstellenden Spannarmes kommen kann. Außerdem bietet die erfindungsgemäße Ausbildung den Vorteil der seitlichen Zuordnungsmöglichkeit im Grunde beliebig zu gestaltender Handhaben für die Rückstellung der Schwinge, die sich zudem, was ebenfalls noch näher erläutert wird, in weiterbildender Ausgestaltung dahingehend verändern lässt, dass es mit ihr möglich wird, im Bedarfsfall die Stellmechanik auch von Hand in Übertotpunktsposition drücken zu können, welche Ausführungsform bevorzugt wird. The means for unlocking the located in the over-center position actuating mechanism of the clamping device are thus formed from a linearly movable actuator from the actuator arranged as Stellfortsatz actuating element and further from a with the actuating extension in adjustable contact and actuated by a flank side of the tensioning device rocker so in the Head of the device in the travel of the actuating extension projects, which will be explained in more detail. The rocker is in the form of a small one-armed, entrained by Stellfortsatz to Übertotpunktstellung lever and accordingly arranged at the appropriate location of the head piece, with its pivot axis and the pivotally connected to it pivot shaft of the clamping arm particularly preferably extends from flank side to flank side of the head piece and thus accessible from the outside. The swingarm remains on reaching the Übertotpunktposition in adjusting contact with the Stellfortsatz so that, if necessary, by actuation of the rocker, the actuator can be solved via it seated Verstellfortsatz from its over-center position. The arrangement of the rocker at Übertotpunktsentsprech- and edge side point in the head causes the lateral access to the pivot shaft outside the pivoting range of the clamping arm and thus it does not automatically to threats an accessing hand in itself due to about in the device still existing operating pressure Low tension can come. In addition, the present invention provides the advantage of lateral assignment possibility basically arbitrarily gestaltender handle for the provision of the rocker, which also, what will also be explained in more detail can change to the effect that it is possible with her, if necessary, the Actuator also press by hand in Übertotpunkts position to be able to which embodiment is preferred.
Der am Stellglied anzubringende Stellfortsatz wird, wie erläutert, gegen die Rückseite der Spannvorrichtung orientiert angeordnet, d. h. , zur spannarm- bzw. schwenkwellenabgewandten Schmalseite des Kopfstückes hin, woraus sich auch die Anordnung der Schwinge im entsprechend rückwärtigen Bereich des Kopfstückes ergibt, in dem quasi bedien- und anschlussseitig in der Regel bei solchen Spannvorrichtungen auch deren Senso- rik untergebracht ist. Sofern das Stellglied im Sinne der DE 202 09 237 Ul oder der DE 202 05 994 Ul zweiteilig und damit längenveränderlich ausgebildet ist, so ist in diesem Falle der Stellfortsatz am der kniehebelmechaniknahen Teil des Stellgliedes angeordnet. The actuating extension to be attached to the actuator is, as explained, arranged oriented against the back of the clamping device, d. H. , to the tension arm or schwenkwellenabgewandten narrow side of the head piece out, which also results in the arrangement of the rocker in accordance with the rear portion of the head piece, in the quasi control and connection side usually in such tensioning devices and their sensor technology is housed. If the actuator in the sense of DE 202 09 237 Ul or DE 202 05 994 Ul two-piece and thus variable in length, so in this case the actuating extension is arranged on the knee lever mechanism near part of the actuator.
Weitere vorteilhafte Ausführungsformen ergeben sich nach den abhängigen Patentansprüchen. Die erfindungsgemäße Spannvorrichtung und ihre vorteilhaften Ausführungsformen werden anhand der zeichnerischen Darstellung von flankenseitig gesehenen Ausführungsbeispielen nachfolgend näher erläutert. Further advantageous embodiments will become apparent from the dependent claims. The clamping device according to the invention and its advantageous embodiments will be explained in more detail below with reference to the drawings of embodiments seen on the flank side.
Es zeigt schematisch It shows schematically
Figur 1 die Spannvorrichtung in Seitenansicht und in Figure 1, the clamping device in side view and in
Schließ- bzw. Spannstellung mit einer einfachen Ausführungsform der Schwinge;  Closing or clamping position with a simple embodiment of the rocker;
Figur 2 die Spannvorrichtung gemäß Figur 1 mit der bevorzugten Ausführungsform der Schwinge;  FIG. 2 shows the clamping device according to FIG. 1 with the preferred embodiment of the rocker;
Figur 3 die Spannvorrichtung gemäß Figur 2 in einer Zwischenstellung;  FIG. 3 shows the clamping device according to FIG. 2 in an intermediate position;
Figur 4 die Spannvorrichtung gemäß Figur 2 in Öffnungsstellung;  FIG. 4 shows the clamping device according to FIG. 2 in the open position;
Figur 5 vergrößert die Schwinge in Seitenansicht und  Figure 5 enlarges the rocker in side view and
Figur 6 im Schnitt die Zuordnung der Schwinge zum Kopfstück.  Figure 6 in section the assignment of the rocker to the head piece.
Die in den Figuren 1 bis 4 stark vereinfacht dargestellte Spannvorrichtung besteht unter Verweis auf diese Figuren in bekannter Weise aus einer in einem Kopfstück 20 untergebrachten, mit einem linear von einem (insbesondere pneumatischen) Antrieb 22 (zum Beispiel ein Hubkolben) aus beweglichen Stellglied 1 versehenen Kniehebelmechanik 2, der Mittel zur Ent- sperrung einer Übertotpunktsteilung zugeordnet sind. Diese Mittel bestehen aus einem Stellelement 3 und aus einer mit dem Stellelement 3 in Verstellkontakt bringbaren Schwinge 4. Zur Stellmechanik 2 gehören, wie üblich, noch ein Zwischenglied 25 zur Verbindung zwischen Stellglied 1 und einem Wellenhebel 24 einer Schwenkwelle 23 mit dem Spannarm 21. Für eine solche Spannvorrichtung ist nun wesentlich, dass das Stellelement 3 schwenkwellenabgewandt orientiert als Stell - fortsatz ausgebildet und das Stellglied 1 zwischen der Schwenkwelle 23 und der Schwinge 4 angeordnet ist, d. h. die Schwinge 4 ist von einer Flankenseite der Spannvorrichtung aus betätigbar ausgebildet. The clamping device shown greatly simplified in Figures 1 to 4 consists with reference to these figures in a known manner from a housed in a head piece 20, provided with a linear from a (especially pneumatic) drive 22 (for example, a reciprocating piston) of movable actuator 1 Knee lever mechanism 2, which is associated with means for unlocking an over-center division. To the adjusting mechanism 2 include, as usual, nor an intermediate member 25 for connection between the actuator 1 and a shaft lever 24 a pivot shaft 23 with the clamping arm 21st For such a tensioning device it is now essential that the actuating element 3 is designed to be remote from the pivoting shaft and designed as a positioning extension and the actuator 1 is arranged between the pivoting shaft 23 and the rocker 4, ie the rocker 4 is designed to be actuatable from one flank side of the tensioning device.
Das Stellelement 3 bzw. der Stellfortsatz ist bevorzugt am kniehebelmechanikseitigen Ende des Stellgliedes 1, als Zapfen quer zu diesem und gegen die Rückseite 5 des Kopfstückes 20 orientiert angeordnet, d. h. , dort befindet sich die Schwinge 4, die außerdem ausserhalb des Schwenksektors des mit der Stellmechanik 2 in Verbindung stehenden Spannarmes 21 am Kopfstück 20 angeordnet ist. The actuating element 3 or the actuating extension is preferably arranged on the knee lever-mechanical end of the actuator 1, as a pin oriented transversely to this and against the back 5 of the head piece 20, d. H. , there is the rocker 4, which is also arranged outside the pivoting sector of the associated with the adjusting mechanism 2 clamping arm 21 on the head piece 20.
Bei der Ausführungsform gemäß Figur 1, die die Spannvorrichtung in Übertotpunkt -Spannstellung bzw. in Schließstellung zeigt, weist die Schwinge 4 nur eine in den Stellweg des Stellfortsatzes 3 ragende Nase auf, die bei Drehung im Uhrzeigersinn das Stellelement 3 bzw. den Stellfortsatz und damit das Stellglied 1 aus der Übertotpunktposition etwas nach unten drückt, wonach das Stellglied 1 weiter nach unten gefahren werden kann, bis der Spannarm 21 seine Öffnungsstellung (siehe Figur 4) erreicht. Der mit dargestellte Anschlag 8 sorgt dabei dafür, dass die Nase der Schwinge 4 in gestrichelt angedeuteter Stellung weiterhin in den Stellweg des Stellelements 3 bzw. Stellfortsatzes ragt und bei Hub des Stellgliedes 1 wieder mitgenommen werden kann. Um die frei drehbare Schwinge 4 sich nicht selbst zu überlassen, kann dieser ein geeignetes Federelement 9 zugeordnet werden, das lediglich mit einem Wirkrichtungspfeil, wie auch in Figur 2, angedeutet ist. In the embodiment according to FIG. 1, which shows the tensioning device in the overcenter clamping position or in the closed position, the rocker 4 only has a nose protruding into the actuating path of the actuating extension 3, which, when turned clockwise, the actuating element 3 or the actuating extension and thus the actuator 1 from the over-center position pushes something down, after which the actuator 1 can be further moved down until the clamping arm 21 reaches its open position (see Figure 4). The stop 8 shown with ensures that the nose of the rocker 4 in dashed lines indicated position continues to protrude into the travel of the actuating element 3 and 4 Stellfortsatzes and can be taken back at stroke of the actuator 1 again. In order not to leave the freely rotatable rocker 4 itself, this can be associated with a suitable spring element 9, which is indicated only with a direction of effect arrow, as in Figure 2.
Um die Stellmechanik 2 unter Ausnutzung der Schwinge 4 diese auch von Hand im Bedarfsfall in Übertotpunktposition drücken zu können, ist die Schwinge 4 in vorteilhafter Weiterbildung an ihrem freien Ende 6 mit einer Aufnahmenut 7 für den Eingriff des Stellelements 3 bzw. des Stellfortsatzes versehen, wie dies vergrößert in Figur 5 verdeutlicht ist. Auch bei dieser Ausführungsform sind zweckmäßig ein Anschlag 8 und gegebenenfalls auch ein kleines Federelement 9 vorgesehen. Bei dieser Ausführungsform weist also die Schwinge 4 an ihrem freien Ende 6 zwei gut gerundet ineinander übergehende Nasen auf, zwischen die das Stellelement 3 bzw. der Stellfortsatz eingreifen kann und dabei sowohl bei Aufwärts- als auch Abwärtsbewegung des Stellgliedes 1 die Schwinge 4 mitnimmt. In order to press the adjusting mechanism 2 by taking advantage of the rocker 4 this also by hand in case of need in Übertotpunktposition, the rocker 4 is in an advantageous development provided at its free end 6 with a receiving groove 7 for the engagement of the actuating element 3 and the Stellfortsatzes, as enlarged in Figure 5 illustrates. Also in this embodiment, a stop 8 and possibly also a small spring element 9 are expediently provided. In this embodiment, therefore, the rocker 4 at its free end 6 two well rounded noses overlapping one another, between which the actuator 3 and the actuating extension can intervene and thereby both the rocker 4 entrains both in upward and downward movement of the actuator 1.
Die um eine parallel zur Achse des Spannarms 21 der Spannvorrichtung angeordnete Achse (Schwenkwelle 23) verschwenkbare Schwinge 4 ist unter Verweis auf Figur 6 mit von außen, d. h. von den Flankenseiten des Kopfstückes 20 her zugänglichen Lagerzapfen 10 in den Kopfstückwänden 20.1 gelagert, wobei mindestens einer der Zapfen 10 mit Elementen 11 zum Ansatz von geeigneten Handhabungselementen versehen ist. Die freien Enden der Zapfen 10 erstrecken sich dabei fluchtend zu den Außenflächen der Kopfstückwände 20.1 und dichten insoweit auch die entsprechenden Lageröffnungen in den Kopfstückwänden ab. Das Lagerungsteil 12 der Schwinge 4 mit seinen Lagerzapfen 10 ist dabei mit einer Durchgangsöffnung 13 versehen, so dass vorteilhaft Handhabungselemente, wie Steckschlüssel oder dergleichen, von beiden Flankenseiten der Spannvorrichtung aus und in geeigneter Weise verdrehgesichert in die Durchgangsöffnung im Bedarfsfall eingesetzt werden können. The about a parallel to the axis of the clamping arm 21 of the tensioning device arranged axis (pivot shaft 23) pivotable rocker 4 is with reference to Figure 6 with from the outside, d. H. Bearing journals 10, which are accessible from the flank sides of the head piece 20, are mounted in the head piece walls 20.1, at least one of the pins 10 being provided with elements 11 for the attachment of suitable handling elements. The free ends of the pins 10 extend in alignment with the outer surfaces of the head piece walls 20.1 and seal in this respect, the corresponding bearing openings in the head piece walls. The bearing part 12 of the rocker 4 with its bearing pin 10 is provided with a through hole 13, so that advantageous handling elements, such as socket wrenches or the like, from both flank sides of the jig and in a suitable manner against rotation in the through hole can be used if necessary.
Sofern das Stellglied 1, wie einleitend vorerwähnt, zwecks Län- genveränderbarkeit zweiteilig ausgebildet sein sollte (siehe gestrichelte Linien im Stellglied 1 der Figur 4) ist das Stellelement 3 bzw. der Stellfortsatz am kniehebelmechaniknahen bzw. damit verbundenen Teil 1.1 des Stellgliedes 1 angeordnet. Bezugszeichenliste If the actuator 1, as mentioned above, should be designed in two parts for the purpose of length variability (see dashed lines in the actuator 1 of FIG. 4), the actuating element 3 or the actuating extension is arranged on the part 1.1 of the actuator 1 close to the toggle mechanism or associated therewith. LIST OF REFERENCE NUMBERS
1 Stellglied 1 actuator
1.1 Teil  1.1 part
2 Kniehebelmechanik  2 toggle mechanism
3 Stellelement  3 control element
4 Schwinge  4 swingarm
5 Rückseite  5 back side
6 freies Ende  6 free end
7 Aufnähmenut  7 picking up
8 Schwenkbegrenzungsanschlag 8 swing limit stop
9 Federelement 9 spring element
10 Zapfen  10 cones
11 Element  11 element
12 Lagerteil  12 bearing part
13 Durchgangsöffnung  13 passage opening
20 Kopfstück  20 head piece
20.1 Kopfstückwände  20.1 header walls
21 Spannarm  21 tension arm
22 Antrieb  22 drive
23 Schwenkwelle  23 pivot shaft
24 Wellenhebel  24 shaft levers
25 Zwischenglied  25 intermediate link

Claims

Patentansprüche claims
1. Spannvorrichtung, umfassend eine mit einem linear beweglichen Stellglied (1) und mit einer Schwenkwelle (23) für einen Spannarm (21) versehene Kniehebelmechanik (2) , der Mittel zur Entsperrung einer Übertotpunktsteilung zugeordnet sind, wobei diese aus einem am Stellglied (1) angeordneten Stellelement (3) und aus einer mit dem Stellelement (3) in Verstellkontakt bringbaren Schwinge (4) gebildet sind, 1. A tensioning device, comprising a with a linearly movable actuator (1) and with a pivot shaft (23) for a clamping arm (21) provided toggle mechanism (2) associated with the means for unlocking a Übertotpunktsteilung, these from one of the actuator (1 ) arranged adjusting element (3) and from a with the adjusting element (3) can be brought into adjustment rocker (4),
dadurch gekennzeichnet ,  characterized ,
dass das Stellelement (3) schwenkwellenabgewandt orientiert als Stellfortsatz ausgebildet und das Stellglied (1) zwischen der Schwenkwelle (23) und der Schwinge (4) angeordnet ist .  that the adjusting element (3) oriented away from the pivot shaft designed as an actuating extension and the actuator (1) between the pivot shaft (23) and the rocker (4) is arranged.
2. Spannvorrichtung nach Anspruch 1, 2. Clamping device according to claim 1,
dadurch gekennzeichnet ,  characterized ,
dass die Mittel zur Entsperrung außerhalb eines Schwenksektors eines mit der Kniehebelmechanik (2) in Verbindung stehenden Spannarmes (21) an einem Kopfstück (20) der Spannvorrichtung angeordnet sind.  the means for unlocking are arranged on a head piece (20) of the tensioning device outside a swivel sector of a tensioning arm (21) which is connected to the knee lever mechanism (2).
3. Spannvorrichtung nach Anspruch 1 oder 2 , 3. Clamping device according to claim 1 or 2,
dadurch gekennzeichnet ,  characterized ,
dass die Schwinge (4) an ihrem freien Ende (6) mit einer Aufnahmenut (7) für einen Eingriff des Stellelements (3) versehen ist.  the rocker (4) is provided at its free end (6) with a receiving groove (7) for engagement of the adjusting element (3).
4. Spannvorrichtung nach einem der Ansprüche 1 bis 3, 4. Clamping device according to one of claims 1 to 3,
dadurch gekennzeichnet ,  characterized ,
dass der Schwinge (4) mindestens in Entsperrungsrichtung ein Schwenkbegrenzungsanschlag (8) zugordnet ist. in that the rocker (4) is assigned a pivot limit stop (8) at least in the unlocking direction.
5. Spannvorrichtung nach einem der Ansprüche 1 bis 4, 5. Clamping device according to one of claims 1 to 4,
dadurch gekennzeichnet,  characterized,
dass die Schwinge (4) mit einem in EntSperrungsrichtung wirksamen Federelement (9) belastet ausgebildet ist.  in that the rocker (4) is loaded with a spring element (9) which acts in the unlocking direction.
6. Spannvorrichtung nach einem der Ansprüche 1 bis 5, 6. Clamping device according to one of claims 1 to 5,
dadurch gekennzeichnet,  characterized,
dass die Schwinge (4) mindestens einen in der Spannvorrichtung gelagerten Lagerzapfen (10) aufweist.  the rocker (4) has at least one bearing journal (10) mounted in the tensioning device.
7. Spannvorrichtung nach einem der Ansprüche 1 bis 6, 7. Clamping device according to one of claims 1 to 6,
dadurch gekennzeichnet,  characterized,
dass die Schwinge (4) bzw. deren Lagerzapfen (10) von ausserhalb der Spannvorrichtung zugänglich ausgebildet ist.  that the rocker (4) or its bearing pin (10) is formed accessible from outside the clamping device.
8. Spannvorrichtung nach Anspruch 6 oder 7, 8. Clamping device according to claim 6 or 7,
dadurch gekennzeichnet,  characterized,
dass der Lagerzapfen (10) mit einem Element (11) zum Ansatz eines Handhabungselements versehen ist.  the bearing journal (10) is provided with an element (11) for the attachment of a handling element.
9. Spannvorrichtung nach einem der Ansprüche 6 bis 8, 9. Clamping device according to one of claims 6 to 8,
dadurch gekennzeichnet,  characterized,
dass ein den Lagerzapfen (10) aufweisendes Lagerteil (12) der Schwinge (4) mit einer Durchgangsöffnung (13) versehen ist .  a bearing part (12) of the rocker (4) having the bearing journal (10) is provided with a passage opening (13).
10. Spannvorrichtung nach einem der Ansprüche 1 bis 9, 10. Clamping device according to one of claims 1 to 9,
dadurch gekennzeichnet,  characterized,
dass das Stellelement (3) gegen eine Rückseite (5) der Spannvorrichtung orientiert angeordnet ist.  that the adjusting element (3) is arranged oriented towards a rear side (5) of the clamping device.
11. Spannvorrichtung nach einem der Ansprüche 1 bis 10, wobei das Stellglied (1) aus zwei Teilen und in sich längenveränderlich ausgebildet ist, dadurch gekennzeichnet , 11. Clamping device according to one of claims 1 to 10, wherein the actuator (1) consists of two parts and is variable in length, characterized ,
dass das Stellelement (3) am kniehebelmechaniknahen Teil (1.1) des Stellgliedes (1) angeordnet ist. in that the adjusting element (3) is arranged on the part (1.1) of the actuator (1) which is close to the knee lever mechanism.
EP10782526.7A 2009-10-09 2010-10-08 Clamping device Not-in-force EP2485870B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009048510A DE102009048510A1 (en) 2009-10-09 2009-10-09 jig
PCT/DE2010/001173 WO2011042009A1 (en) 2009-10-09 2010-10-08 Clamping device

Publications (2)

Publication Number Publication Date
EP2485870A1 true EP2485870A1 (en) 2012-08-15
EP2485870B1 EP2485870B1 (en) 2014-07-09

Family

ID=43416513

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10782526.7A Not-in-force EP2485870B1 (en) 2009-10-09 2010-10-08 Clamping device

Country Status (9)

Country Link
US (1) US8777200B2 (en)
EP (1) EP2485870B1 (en)
CN (1) CN102666023B (en)
BR (1) BR112012007885A2 (en)
CA (1) CA2774240A1 (en)
DE (1) DE102009048510A1 (en)
ES (1) ES2484170T3 (en)
MX (1) MX2012003724A (en)
WO (1) WO2011042009A1 (en)

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DE102012103921A1 (en) * 2012-05-04 2013-11-07 De-Sta-Co Europe Gmbh jig
DE202012101655U1 (en) 2012-05-04 2012-08-02 De-Sta-Co Europe Gmbh jig
JP5688582B2 (en) * 2012-07-11 2015-03-25 Smc株式会社 Clamping device
DE202013005869U1 (en) 2013-06-29 2013-08-09 Tünkers Maschinenbau Gmbh Toggle clamp
EP3375569A1 (en) 2017-03-13 2018-09-19 UNIVER S.p.A. Device for positioning, pivoting or clamping of workpieces
IT202100017573A1 (en) 2021-07-02 2023-01-02 Pneumax S P A ARTICULATED LEVER OR CAM TYPE ACTUATION UNIT WITH INTEGRATED MANUAL RELEASE

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DE19616441C1 (en) 1996-04-25 1997-06-26 Tuenkers Maschinenbau Gmbh Toggle joint clamping device for vehicle bodywork, with grip head
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Also Published As

Publication number Publication date
CA2774240A1 (en) 2011-04-14
CN102666023A (en) 2012-09-12
US20110232050A1 (en) 2011-09-29
CN102666023B (en) 2015-03-11
US8777200B2 (en) 2014-07-15
WO2011042009A1 (en) 2011-04-14
EP2485870B1 (en) 2014-07-09
DE102009048510A1 (en) 2011-04-14
ES2484170T3 (en) 2014-08-11
BR112012007885A2 (en) 2019-09-24
MX2012003724A (en) 2012-08-31

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