EP1644139B1 - Device for pulling out dents - Google Patents

Device for pulling out dents Download PDF

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Publication number
EP1644139B1
EP1644139B1 EP04740915A EP04740915A EP1644139B1 EP 1644139 B1 EP1644139 B1 EP 1644139B1 EP 04740915 A EP04740915 A EP 04740915A EP 04740915 A EP04740915 A EP 04740915A EP 1644139 B1 EP1644139 B1 EP 1644139B1
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EP
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Prior art keywords
legs
features
leg
fixture
pulling
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EP04740915A
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German (de)
French (fr)
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EP1644139A1 (en
Inventor
Olaf Ritter
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Adolf Wuerth GmbH and Co KG
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Adolf Wuerth GmbH and Co KG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions

Definitions

  • a device for extracting bumps from sheets in which two legs provided with support points are pivotably articulated on a common axis, the distance can be changed by a rod.
  • the rod is hinged to one leg, and passes through an eyelet on the other leg ( US 2863489 ).
  • the device described in the preamble of claim 1 is known from US-A-2,863,489 known.
  • a device of this type JP 9-206833 ) are mounted at the two legs with supporting points on a common support, wherein the distance of these Abonstellen can be changed.
  • the invention is based on the object to provide a way to allow a better adaptation to the shape and size of the bump to thereby achieve improved work results can.
  • the invention proposes a device with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.
  • the invention thus proposes to be able to adjust and adjust the distance between at least two support points, which are formed at the ends of the legs.
  • the support points can therefore be adapted to the size and the shape of the bump. The closer to the extent of the bulge the support points are zoomed in, the safer it is ensured that the sheet is claimed only in the area of the actual bump.
  • a leg can be adjusted in a direction that changes the distance of the support point associated with this leg of the other leg associated support point. In the simplest case, this is done by the fact that the leg can be pivoted about an axis extending transversely to the direction of pull. The possibility to move the leg as a whole transversely to the pulling direction, instead of pivoting it, in principle also possible, but requires a greater effort.
  • the leg which is adjustable, then also fixable or lockable.
  • a one-sided adjustment may be sufficient.
  • the adjustment is preferably independent of each other.
  • the support points can be arranged close to the circumference of the bulge, but on the other hand, the front region of the tension element can be arranged at the lowest point of the bulge.
  • two legs are combined to form a jointly pivotable and jointly lockable leg pair.
  • the lock may in particular be a catch, which has the advantage that then an adjustment is reliably prevented and without any special effort, once the correct position has been set.
  • the locking can be made for example by spring action and also released against spring action.
  • the locking takes place by a toothing, so that an adjustment in several positions is possible.
  • the holder of the associated end of the adjustable leg has a toothing and the holder has a counter-toothing, wherein the engagement is releasable by a radial displacement of a shaft on which the leg is mounted, said shaft is preferably spring-loaded.
  • the leg pair may, for example, have a common shaft, which in the case of latching with the aid of the toothing can then also be spring-loaded.
  • At least one leg is designed to be infinitely pivotable.
  • the stepless pivotability in a pair of legs can be realized by a common wave.
  • To lock can be provided on a train claimable element in a stepless pivoting, but also in a gradual pivoting, which acts directly between the legs, for example, not between leg and bracket.
  • the locking element may for example be detachably attachable to the legs, for example in several positions.
  • the locking element is formed by a supporting element having the support point.
  • This support element can be connected to the front ends of the legs, so that in this case the support element determines the position of the legs of the bracket.
  • This support element may be formed as a ring element, optionally as an interrupted ring element.
  • Another way of locking may consist in that the locking element is a threaded rod having two regions of different thread direction, which connects the two legs together.
  • this threaded rod can serve as an adjusting element and at the same time locking element.
  • FIG. 1 and 2 show schematically a device with which a bulge can be pulled out of sheets.
  • the device includes a holder 1, in which an actuating lever 2 is pivotally mounted. The pivoting of the actuating lever 2 leads to a displacement of a tension element 3 in FIG. 1 and 2 up.
  • the zero position of the tension element 3 can be adjusted by means of a knurled screw 4 protruding from the device.
  • the actual position of the tension element can be read on a scale 5, since the displacement of the tension element 3 leads to a displacement of a display element 6.
  • an adapter 7 is attached to the tension element 3, which can be brought into a tension-resistant connection with a glued into the bump adhesive adapter. Further details are not shown. It is on this at the beginning already mentioned EP 11 36 145 Referenced.
  • the holder has at least two legs 8, 9, wherein in the illustrated embodiment in each case two legs 9 and 8 are combined to form a pair of legs, which are connected to each other via a first shaft 10 and a second shaft 11.
  • the holder 1 associated end of the legs 8, 9 is provided along a semicircle with a toothing 12.
  • the holder itself is provided in a region assigned to this upper end of the legs 8, 9 with a counter-toothing 13, wherein the counter-toothing is possibly only partially formed.
  • the two legs 9 of a pair of legs connecting upper shaft 10, see also FIG. 2 Is acted upon by a only schematically indicated tension spring 14 in the direction of the holder 1.
  • the upper end of the spring 14 is supported on a cross member 15. This spring ensures that the toothing 12 is in engagement with the toothing of the holder 1 at the end of the legs 8, 9 facing the holder 1. As a result, the angular position of the legs 8, 9 is fixed.
  • a support element 16 is attached to the shaft connecting the two legs of a pair of legs 11, for example, attached with the aid of a resilient holder. With these support elements, the device is placed on the sheet. It makes sense that the support elements 16 are arranged immediately adjacent to the outer periphery of the bulge. Because only the metal sheet inside the bump should be pulled out with the device.
  • the two pairs of legs 8, 9 can be adjusted independently of one another by pulling on the legs, for example on the shaft 11, until the teeth 12 and the counter teeth 13 are disengaged. Then you can slightly swivel the leg pair until it takes the right position. Then the tension spring 14, the lock again ago.
  • the adjustment on both sides has the advantage that you can orient the tension element with its adapter 7 to the deepest point of the bulge, even if it is not arranged symmetrically in the middle of the bulge.
  • FIG. 3 shows the sheet associated with the end of the legs 18, 19 in a modified embodiment.
  • a nut is connected to the shaft 11 forming the pair of legs 18, as well as to the shaft 11 of the other leg pair 19.
  • Threaded through the two nuts is a threaded rod 20 having a right-threaded portion 21 and a left-threaded portion 22.
  • the threaded rod 20 By turning the threaded rod 20 by means of a knurled head 23, the distance between the two pairs of legs 18, 19 can be adjusted from each other and locked at the same time.
  • the adjustment of the two pairs of legs 18, 19 takes place simultaneously and in opposite directions, which does not have the advantage of independent adjustment of the two pairs of legs, but is sufficient and easier to handle for the normal case.
  • FIG. 4 shows another of the FIG. 3 similar possibility. While in the embodiments according to Figure 1 to 3 the support elements 16 were separated from each other in each leg or each pair of legs, is in the embodiment after FIG. 4 a common for all legs support member 26 used, which has approximately ring shape. Also, this support member 26 has indicated holding shoes 24, with which it can be clamped to the shafts 11. In the embodiment according to FIG. 4 determines the support member 26, the distance of the sheet metal associated ends of the legs 8, 9 so that the pairs of legs 18, 19 are freely pivotable about the shafts 10. Because the waves 10, 11 are not lie on the ends of a rectangle, a stable orientation is also made possible here.

Abstract

The invention concerns a device for pulling out dents on steel plates, said device comprising a fixing elements (1), whereof the legs (8, 9) press on the steel plate outside the dent. Facing the fixing element is a mobile tensile element (3) for pulling out the dent. In order to locate the support element as close as possible to the dent, the legs can be moved about an axis transverse to the tensile direction.

Description

Es ist bekannt, dass man konkave Beulen aus Blechen, insbesondere Kfz- Karosserien, mit Hilfe von speziellen Vorrichtungen herausziehen kann. In die Beule wird beispielsweise ein Adapter eingeklebt, der dann mit der Vorrichtung herausgezogen werden kann. Es ist auch bekannt, in die Beule einen Stift einzuschweißen, der ebenfalls herausgezogen werden kann.It is known that it is possible to extract concave bumps from sheets, in particular motor vehicle bodies, with the aid of special devices. In the bump, for example, an adapter is glued, which can then be pulled out with the device. It is also known to weld a pin in the bump, which can also be pulled out.

Bei einer bekannten Vorrichtung dieser Art ( US 5,203,196 ) enthält die Halterung vier von einer Platte wegragende Beine, die im Bereich ihrer gegenüberliegenden Enden mit einem flachen Ringelement fest verbunden sind. Dieses Ringelement wird auf das Blech um die herauszuziehende Beule herum aufgesetzt, in die Beule wird ein Klebeadapter eingeklebt, der mit einer Stange durch die Platte ragt. An dem freien herausragenden Ende wird dann gezogen. Diese Vorrichtung ist nur für Beulen geeignet, deren Durchmesser kleiner als der Innendurchmesser des Abstützelements ist. Bei Beulen, die deutlich kleiner als der Innendurchmesser des Abstützelements sind, führt eine solche Vorrichtung nicht zu befriedigenden Ergebnissen. Um dies zu verbessern, kann in die zentrale Öffnung des Ringelements ein Adapterelement eingesetzt werden, das den Innendurchmesser des Abstützelements verkleinert. Dies ändert jedoch nichts an der Tatsache, dass die eigentliche Abstützung immer an einer festen Stelle erfolgt.In a known device of this type ( US 5,203,196 ) contains the holder four protruding from a plate legs, which are firmly connected in the region of their opposite ends with a flat ring member. This ring element is placed on the sheet around the pull-out bump around, in the bump, a glue adapter is glued, which projects with a rod through the plate. At the free protruding end is then pulled. This device is only suitable for dents whose diameter is smaller than the inner diameter of the support element. For bumps that are significantly smaller than the inner diameter of the support element, such a device does not lead to satisfactory results. To improve this, in the central opening of the ring element, an adapter element can be used, which reduces the inner diameter of the support element. However, this does not change the fact that the actual support always takes place at a fixed point.

Weiterhin bekannt ist eine Zange zum Herausziehen, die sich ebenfalls mit einem Abstützelement auf dem zu bearbeitenden Blech abstützt ( EP 11 36 145 ).Also known is a puller which is also supported with a support element on the sheet to be processed ( EP 11 36 145 ).

Weiterhin ist eine Einrichtung zum Herausziehen von Beulen aus Blechen bekannt, bei der zwei mit Abstütztstellen versehene Beine an einer gemeinsamen Achse verschwenkbar angelenkt sind, deren Abstand durch eine Stange verändert werden kann. Die Stange ist an einem Bein angelenkt, und greift durch eine Öse an dem anderen Bein hindurch ( US 2863489 ). Die im Oberbegriff des Anspruchs 1 beschriebene Vorrichtung ist aus der US-A-2 863 489 bekannt.
Ebenfalls bekannt ist eine Einrichtung dieser Art ( JP 9-206833 ) bei der zwei Beine mit Abstütztstellen an einer gemeinsamen Halterung angebracht sind, wobei der Abstand dieser Abstütztstellen verändert werden kann.Furthermore, a device for extracting bumps from sheets is known in which two legs provided with support points are pivotably articulated on a common axis, the distance can be changed by a rod. The rod is hinged to one leg, and passes through an eyelet on the other leg ( US 2863489 ). The device described in the preamble of claim 1 is known from US-A-2,863,489 known.
Also known is a device of this type ( JP 9-206833 ) are mounted at the two legs with supporting points on a common support, wherein the distance of these Abstütztstellen can be changed.

Der Erfindung liegt die Aufgabe zu Grunde, eine Möglichkeit zu schaffen, eine bessere Anpassung an die Form und Größe der Beule zu ermöglichen, um dadurch verbesserte Arbeitsergebnisse verwirklichen zu können.The invention is based on the object to provide a way to allow a better adaptation to the shape and size of the bump to thereby achieve improved work results can.

Zur Lösung dieser Aufgabe schlägt die Erfindung eine Vorrichtung mit den im Anspruch 1 genannten Merkmalen vor. Weiterbildungen der Erfindung sind Gegenstand von Unteransprüchen.To solve this problem, the invention proposes a device with the features mentioned in claim 1. Further developments of the invention are the subject of dependent claims.

Die Erfindung schlägt also vor, den Abstand zwischen mindestens zwei Abstützstellen, die an den Enden der Beine gebildet sind, einstellen und verstellen zu können. Die Abstützstellen können daher an die Größe und auch die Form der Beule angepasst werden. Je näher an den Umfang der Beule die Abstützstellen heran geführt werden, desto sicherer wird dafür gesorgt, dass das Blech nur im Bereich der tatsächlichen Beule beansprucht wird.The invention thus proposes to be able to adjust and adjust the distance between at least two support points, which are formed at the ends of the legs. The support points can therefore be adapted to the size and the shape of the bump. The closer to the extent of the bulge the support points are zoomed in, the safer it is ensured that the sheet is claimed only in the area of the actual bump.

Eine Möglichkeit, wie der Abstand zwischen zwei Abstützstellen verstellt werden kann, besteht darin, dass ein Bein in einer Richtung verstellt werden kann, die den Abstand der diesem Bein zugeordneten Abstützstelle von der einem anderen Bein zugeordneten Abstützstelle verändert. Im einfachsten Fall geschieht dies dadurch, dass das Bein um eine quer zur Zugrichtung verlaufende Achse verschwenkt werden kann. Die Möglichkeit, das Bein insgesamt quer zur Zugrichtung zu verschieben, anstatt es zu verschwenken, ist im Prinzip auch möglich, erfordert aber einen größeren Aufwand.One way in which the distance between two support points can be adjusted, is that a leg can be adjusted in a direction that changes the distance of the support point associated with this leg of the other leg associated support point. In the simplest case, this is done by the fact that the leg can be pivoted about an axis extending transversely to the direction of pull. The possibility to move the leg as a whole transversely to the pulling direction, instead of pivoting it, in principle also possible, but requires a greater effort.

In der verstellten Position ist das Bein, das verstellbar ist, dann auch festlegbar bzw. arretierbar.In the adjusted position, the leg, which is adjustable, then also fixable or lockable.

Eine einseitige Verstellung kann ausreichen. Da man aber nicht unbedingt von einer immer feststehenden Form der Beule ausgehen kann, ist es sinnvoll und liegt im Rahmen der Erfindung, dass alle Beine der Halterung verstellt werden können, wobei die Verstellung vorzugsweise unabhängig voneinander ist. Dadurch lassen sich einerseits die Abstützstellen nahe an dem Umfang der Beule anordnen, andererseits aber der vordere Bereich des Zugelements an die tiefste Stelle der Beule anordnen.A one-sided adjustment may be sufficient. However, since one can not necessarily assume a permanent form of bump, that is it makes sense and is within the scope of the invention that all legs of the holder can be adjusted, the adjustment is preferably independent of each other. As a result, on the one hand, the support points can be arranged close to the circumference of the bulge, but on the other hand, the front region of the tension element can be arranged at the lowest point of the bulge.

Es kann erfindungsgemäß vorgesehen sein, dass zwei Beine zu einem gemeinsam verschwenkbaren und gemeinsam arretierbaren Beinpaar zusammengefasst sind.It may be provided according to the invention that two legs are combined to form a jointly pivotable and jointly lockable leg pair.

Die Arretierung kann insbesondere eine Verrastung sein, die den Vorteil hat, dass dann eine Verstellung zuverlässig und ohne besonderen Kraftaufwand verhindert wird, wenn einmal die korrekte Position eingestellt wurde. Die Verrastung kann beispielsweise durch Federwirkung hergestellt und gegen Federwirkung auch wieder gelöst werden.The lock may in particular be a catch, which has the advantage that then an adjustment is reliably prevented and without any special effort, once the correct position has been set. The locking can be made for example by spring action and also released against spring action.

Insbesondere kann vorgesehen sein, dass die Verrastung durch eine Verzahnung erfolgt, so dass eine Verstellung in mehreren Positionen möglich ist.In particular, it can be provided that the locking takes place by a toothing, so that an adjustment in several positions is possible.

Es ist vorgesehen, dass das der Halterung zugeordnete Ende des verstellbaren Beins eine Verzahnung und die Halterung eine Gegenverzahnung aufweist, wobei der Eingriff durch eine radiale Verlagerung einer Welle lösbar ist, an der das Bein gelagert ist, wobei diese Welle vorzugsweise federbeaufschlagt ist.It is provided that the holder of the associated end of the adjustable leg has a toothing and the holder has a counter-toothing, wherein the engagement is releasable by a radial displacement of a shaft on which the leg is mounted, said shaft is preferably spring-loaded.

Wenn ein Beinpaar vorhanden ist, so kann das Beinpaar beispielsweise eine gemeinsame Welle aufweisen, die im Fall der Verrastung mit Hilfe der Verzahnung dann ebenfalls federbeaufschlagt sein kann.If a pair of legs is present, the leg pair may, for example, have a common shaft, which in the case of latching with the aid of the toothing can then also be spring-loaded.

Es ist aber ebenfalls möglich und liegt im Rahmen der Erfindung, dass mindestens ein Bein stufenlos verschwenkbar ausgebildet ist. Auch hier kann die stufenlose Verschwenkbarkeit bei einem Beinpaar durch eine gemeinsame Welle verwirklicht werden.But it is also possible and is within the scope of the invention that at least one leg is designed to be infinitely pivotable. Again, the stepless pivotability in a pair of legs can be realized by a common wave.

Zur Arretierung kann bei einer stufenlosen Verschwenkung, aber auch bei einer abgestuften Verschwenkung, ein auf Zug beanspruchbares Element vorgesehen sein, das beispielsweise zwischen den Beinen direkt wirkt, also nicht zwischen Bein und Halterung.To lock can be provided on a train claimable element in a stepless pivoting, but also in a gradual pivoting, which acts directly between the legs, for example, not between leg and bracket.

Das Arretierelement kann beispielsweise lösbar an den Beinen anbringbar sein, beispielsweise in mehreren Positionen.The locking element may for example be detachably attachable to the legs, for example in several positions.

Eine weitere Möglichkeit, wie die Arretierung der Beine durchgeführt werden kann, besteht darin, dass das Arretierelement von einem die Abstützstelle aufweisenden Abstützelement gebildet ist. Dieses Abstützelement kann mit den vorderen Enden der Beine verbunden werden, so dass in diesem Fall das Abstützelement die Position der Beine der Halterung vorgibt.Another way in which the locking of the legs can be carried out is that the locking element is formed by a supporting element having the support point. This support element can be connected to the front ends of the legs, so that in this case the support element determines the position of the legs of the bracket.

Dieses Abstützelement kann als Ringelement ausgebildet sein, gegebenenfalls als unterbrochenes Ringelement.This support element may be formed as a ring element, optionally as an interrupted ring element.

Eine weitere Möglichkeit der Arretierung kann darin bestehen, dass das Arretierelement eine zwei Bereiche unterschiedlicher Gewinderichtung aufweisende Gewindestange ist, die die beiden Beine miteinander verbindet. Hier kann diese Gewindestange als Verstellelement und gleichzeitig Arretierelement dienen.Another way of locking may consist in that the locking element is a threaded rod having two regions of different thread direction, which connects the two legs together. Here, this threaded rod can serve as an adjusting element and at the same time locking element.

Weitere Merkmale, Einzelheiten und Vorzüge der Erfindung ergeben sich aus den Patentansprüchen und der Zusammenfassung, deren beider Wortlaut durch Bezugnahme zum Inhalt der Beschreibung gemacht wird, der folgenden Beschreibung bevorzugter Ausführungsformen der Erfindung sowie anhand der Zeichnung. Hierbei zeigen:

Figur 1
schematisch eine teilweise geschnittene Seitenansicht einer Vorrichtung zum Herausziehen von Beulen aus Blech;
Figur 2
eine teilweise geschnittene Seitenansicht von links in Figur 1;
Figur 3
eine Detailansicht der Vorrichtung nach Figur 1 bei einer geänderten Ausführungsform;
Figur 4
eine weitere Detailansicht einer geänderten Ausführungsform.
Further features, details and advantages of the invention will become apparent from the claims and the abstract, the wording of which is incorporated by reference into the content of the description is, the following description of preferred embodiments of the invention and from the drawing. Hereby show:
FIG. 1
schematically a partially sectioned side view of a device for withdrawing bumps from sheet metal;
FIG. 2
a partially sectioned side view from the left in FIG. 1 ;
FIG. 3
a detailed view of the device according to FIG. 1 in a modified embodiment;
FIG. 4
another detailed view of a modified embodiment.

Figur 1 und 2 zeigen schematisch eine Vorrichtung, mit der eine Beule aus Blechen herausgezogen werden kann. Die Vorrichtung enthält eine Halterung 1, in der ein Betätigungshebel 2 verschwenkbar gelagert ist. Die Verschwenkung des Betätigungshebels 2 führt zu einer Verschiebung eines Zugelements 3 in Figur 1 und 2 nach oben. Die Nullstellung des Zugelements 3 kann mit Hilfe einer aus der Vorrichtung herausragenden Rändelschraube 4 eingestellt werden. Die tatsächliche Position des Zugelements kann an einer Skala 5 abgelesen werden, da die Verschiebung des Zugelements 3 zu einer Verschiebung eines Anzeigeelements 6 führt. An dem in Figur 1 unteren Ende der Halterung 1 ist an dem Zugelement 3 ein Adapter 7 angebracht, der mit einem in die Beule einzuklebenden Klebeadapter in eine zugfeste Verbindung gebracht werden kann. Nähere Einzelheiten werden nicht dargestellt. Es wird hierzu auf die eingangs bereits erwähnte EP 11 36 145 Bezug genommen. FIG. 1 and 2 show schematically a device with which a bulge can be pulled out of sheets. The device includes a holder 1, in which an actuating lever 2 is pivotally mounted. The pivoting of the actuating lever 2 leads to a displacement of a tension element 3 in FIG. 1 and 2 up. The zero position of the tension element 3 can be adjusted by means of a knurled screw 4 protruding from the device. The actual position of the tension element can be read on a scale 5, since the displacement of the tension element 3 leads to a displacement of a display element 6. At the in FIG. 1 lower end of the holder 1, an adapter 7 is attached to the tension element 3, which can be brought into a tension-resistant connection with a glued into the bump adhesive adapter. Further details are not shown. It is on this at the beginning already mentioned EP 11 36 145 Referenced.

Die Vorrichtung ist dazu bestimmt, auf das Blech im Bereich der herauszuziehenden Beule aufgesetzt zu werden. Zu diesem Zweck hat die Halterung mindestens zwei Beine 8, 9, wobei im dargestellten Ausführungsbeispiel jeweils zwei Beine 9 bzw. 8 zu einem Paar von Beinen zusammengefasst sind, die über eine erste Welle 10 und eine zweite Welle 11 miteinander verbunden sind. Das der Halterung 1 zugeordnete Ende der Beine 8, 9 ist längs eines Halbkreises mit einer Verzahnung 12 versehenen. Die Halterung selbst ist in einem diesem oberen Ende der Beine 8, 9 zugeordneten Bereich mit einer Gegenverzahnung 13 versehen, wobei die Gegenverzahnung unter Umständen nur teilweise ausgebildet ist. Die die beiden Beine 9 eines Beinpaars verbindende obere Welle 10, siehe auch Figur 2, wird durch eine nur schematisch angedeutete Zugfeder 14 in Richtung auf die Halterung 1 beaufschlagt. Das obere Ende der Feder 14 stützt sich an einem Querträger 15 ab. Diese Feder sorgt dafür, dass die Verzahnung 12 an dem der Halterung 1 zugewandten Ende der Beine 8, 9 mit der Verzahnung der Halterung 1 in Eingriff steht. Dadurch ist die winkelmäßige Position der Beine 8, 9 festgelegt.The device is intended to be placed on the sheet in the region of the bump to be pulled out. For this purpose, the holder has at least two legs 8, 9, wherein in the illustrated embodiment in each case two legs 9 and 8 are combined to form a pair of legs, which are connected to each other via a first shaft 10 and a second shaft 11. The holder 1 associated end of the legs 8, 9 is provided along a semicircle with a toothing 12. The holder itself is provided in a region assigned to this upper end of the legs 8, 9 with a counter-toothing 13, wherein the counter-toothing is possibly only partially formed. The two legs 9 of a pair of legs connecting upper shaft 10, see also FIG. 2 , Is acted upon by a only schematically indicated tension spring 14 in the direction of the holder 1. The upper end of the spring 14 is supported on a cross member 15. This spring ensures that the toothing 12 is in engagement with the toothing of the holder 1 at the end of the legs 8, 9 facing the holder 1. As a result, the angular position of the legs 8, 9 is fixed.

Im Bereich des gegenüberliegenden Endes der Beine 8, 9 ist an dem die beiden Beine eines Beinpaars verbindende Welle 11 ein Abstützelement 16 angebracht, beispielsweise mit Hilfe einer federnden Halterung aufgesteckt. Mit diesen Abstützelementen wird die Vorrichtung auf das Blech aufgesetzt. Es ist sinnvoll, dass die Abstützelemente 16 unmittelbar neben dem äußeren Umfang der Beule angeordnet sind. Denn nur das Blech innerhalb der Beule soll mit der Vorrichtung herausgezogen werden. Bei der Ausführungsform nach Figur 1 und 2 können die beiden Beinpaare 8, 9 unabhängig voneinander dadurch verstellt werden, dass man an den Beinen, beispielsweise an der Welle 11 zieht, bis die Verzahnung 12 und die Gegenverzahnung 13 außer Eingriff gelangen. Dann kann man das Beinpaar etwas verschwenken, bis es die richtige Position einnimmt. Dann stellt die Zugfeder 14 die Arretierung wieder her. Die Verstellung auf beiden Seiten hat den Vorteil, dass man das Zugelement mit seinem Adapter 7 an die tiefste Stelle der Beule orientieren kann, auch wenn diese nicht symmetrisch in der Mitte der Beule angeordnet ist.In the region of the opposite end of the legs 8, 9, a support element 16 is attached to the shaft connecting the two legs of a pair of legs 11, for example, attached with the aid of a resilient holder. With these support elements, the device is placed on the sheet. It makes sense that the support elements 16 are arranged immediately adjacent to the outer periphery of the bulge. Because only the metal sheet inside the bump should be pulled out with the device. In the embodiment according to FIG. 1 and 2 For example, the two pairs of legs 8, 9 can be adjusted independently of one another by pulling on the legs, for example on the shaft 11, until the teeth 12 and the counter teeth 13 are disengaged. Then you can slightly swivel the leg pair until it takes the right position. Then the tension spring 14, the lock again ago. The adjustment on both sides has the advantage that you can orient the tension element with its adapter 7 to the deepest point of the bulge, even if it is not arranged symmetrically in the middle of the bulge.

Die Figur 3 zeigt das dem Blech zugeordnete Ende der Beine 18, 19 bei einer geänderten Ausführungsform. Hier erfolgt die Verstellung und Arretierung der dem Blech zugeordneten Ende der Beine und damit der Abstützstellen zwischen den Beinpaaren 18, 19 selbst und nicht zwischen der Halterung 1 und den Beinen. Mit der das Beinpaar 18 bildenden Welle 11 ist eine Mutter verbunden, ebenso mit der Welle 11 des anderen Beinpaars 19. Durch die beiden Muttern ist eine Gewindestange 20 hindurch geschraubt, die einen Abschnitt 21 mit einem Rechtsgewinde und einen Abschnitt 22 mit einem Linksgewinde aufweist. Durch Verdrehen der Gewindestange 20 mit Hilfe eines gerändelten Kopfs 23 lässt sich der Abstand der beiden Beinpaare 18, 19 voneinander verstellen und gleichzeitig arretieren. In diesem Fall erfolgt die Verstellung der beiden Beinpaare 18, 19 gleichzeitig und gegenläufig, was zwar den Vorteil der unabhängigen Verstellung der beiden Beinpaare nicht mehr aufweist, für den Normalfall aber ausreichend und leichter zu handhaben ist.The FIG. 3 shows the sheet associated with the end of the legs 18, 19 in a modified embodiment. Here, the adjustment and locking of the sheet metal associated end of the legs and thus the support points between the leg pairs 18, 19 itself and not between the holder 1 and the legs. A nut is connected to the shaft 11 forming the pair of legs 18, as well as to the shaft 11 of the other leg pair 19. Threaded through the two nuts is a threaded rod 20 having a right-threaded portion 21 and a left-threaded portion 22. By turning the threaded rod 20 by means of a knurled head 23, the distance between the two pairs of legs 18, 19 can be adjusted from each other and locked at the same time. In this case, the adjustment of the two pairs of legs 18, 19 takes place simultaneously and in opposite directions, which does not have the advantage of independent adjustment of the two pairs of legs, but is sufficient and easier to handle for the normal case.

Figur 4 zeigt eine weitere der Figur 3 ähnliche Möglichkeit. Während bei den Ausführungsformen nach Figur 1 bis 3 die Abstützelemente 16 bei jedem Bein oder jedem Beinpaar getrennt voneinander waren, wird bei der Ausführungsform nach Figur 4 ein für alle Beine gemeinsames Abstützelement 26 verwendet, das etwa Ringform aufweist. Auch dieses Abstützelement 26 weist angedeutete Halteschuhe 24 auf, mit denen es an den Wellen 11 angeklemmt werden kann. Bei der Ausführungsform nach Figur 4 bestimmt das Abstützelement 26 den Abstand der dem Blech zugeordneten Enden der Beine 8, 9 so dass die Beinpaare 18, 19 frei um die Wellen 10 verschwenkbar sind. Da die Wellen 10, 11 nicht auf den Enden eines Rechtecks liegen, wird auch hier eine stabile Ausrichtung ermöglicht. FIG. 4 shows another of the FIG. 3 similar possibility. While in the embodiments according to Figure 1 to 3 the support elements 16 were separated from each other in each leg or each pair of legs, is in the embodiment after FIG. 4 a common for all legs support member 26 used, which has approximately ring shape. Also, this support member 26 has indicated holding shoes 24, with which it can be clamped to the shafts 11. In the embodiment according to FIG. 4 determines the support member 26, the distance of the sheet metal associated ends of the legs 8, 9 so that the pairs of legs 18, 19 are freely pivotable about the shafts 10. Because the waves 10, 11 are not lie on the ends of a rectangle, a stable orientation is also made possible here.

Claims (10)

  1. Device for pulling out dents on sheet metal with
    1.1 a fixture (1), which features
    1.1.1 at least two legs (8, 9, 18, 19) each provided with at least one supporting point,
    1.1.2 of which at least one leg (8, 9, 18, 19) may be swivelled about an axis running transversely to the pulling direction and is lockable in several positions
    1.2 a pulling element (3) for connecting with the dent,
    1.3 an actuating element (2) for displacing the pulling element (3) relative to the fixture (1) in the pulling direction, as well as
    1.4 an adjusting means for varying the distance between at least two supporting points,
    characterised in that
    1.5 the end of the adjustable leg (8, 9) assigned to the fixture (1) features a toothed section (12) and the fixture (1) features a counter-part toothed section (13), in that the engagement between both toothed sections (12, 13) is separable by means of an axial and/or a radial movement of the adjustable leg (8, 9), if necessary by the thrust of a spring (14).
  2. Device according to Claim 1, wherein two legs (8, 9, 18, 19) are preferably individually swivelable and lockable.
  3. Device according to one of the preceding claims, wherein two legs (8, 9, 18, 19) are combined to form a common pair of swivelable legs.
  4. Device according to Claim 3, wherein at least one pair of legs features a common shaft (10).
  5. Device according to one of the preceding claims, wherein at least one leg (18, 19) is formed continuously variably swivelable.
  6. Device according to one of the preceding claims, wherein an element capable of being pulled out is provided for locking, which acts on at least two legs (18, 19).
  7. Device according to Claim 6, wherein the locking element is releasably attachable to the legs (18, 19).
  8. Device according to Claim 6 or 7, wherein the locking element is formed as a supporting element (26) that features the supporting points.
  9. Device according to Claim 8, wherein the supporting element (26) is formed as a ring element, if necessary as a discontinuous ring element.
  10. Device according one of Claims 6 to 9, wherein the locking element features a threaded rod (20) that connects two legs (18, 19) with two sections of oppositely oriented directions of thread.
EP04740915A 2003-07-11 2004-07-12 Device for pulling out dents Active EP1644139B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10332182A DE10332182A1 (en) 2003-07-11 2003-07-11 Device for extracting dents
PCT/EP2004/007657 WO2005007312A1 (en) 2003-07-11 2004-07-12 Device for pulling out dents

Publications (2)

Publication Number Publication Date
EP1644139A1 EP1644139A1 (en) 2006-04-12
EP1644139B1 true EP1644139B1 (en) 2008-05-21

Family

ID=34041888

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740915A Active EP1644139B1 (en) 2003-07-11 2004-07-12 Device for pulling out dents

Country Status (6)

Country Link
EP (1) EP1644139B1 (en)
AT (1) ATE395989T1 (en)
DE (2) DE10332182A1 (en)
DK (1) DK1644139T3 (en)
ES (1) ES2307021T3 (en)
WO (1) WO2005007312A1 (en)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2863489A (en) * 1956-12-03 1958-12-09 George D Priest Pulling tool for straightening fenders and bodies
JP2933351B2 (en) * 1990-04-25 1999-08-09 沖電気工業株式会社 Method for manufacturing semiconductor device
US5203196A (en) * 1991-10-07 1993-04-20 Jenkins Fremont T Dent puller
JPH09206833A (en) * 1996-01-30 1997-08-12 Tsukai Seisakusho:Kk Tool and metal pin for drawing motorcar repairing panel metal plate and panel metal plate drawing method using these
DE20003647U1 (en) * 1999-11-09 2000-05-18 Gabriel Michael Dent extractor DA62000
DE10014235A1 (en) * 2000-03-22 2001-09-27 Wuerth Adolf Gmbh & Co Kg Device to remove esp. small dents from motor vehicle panels has holder with traction element to hold adhesive adapter, and position indicator
AU2001285562A1 (en) * 2000-09-05 2002-03-22 Fan Austria Gmbh Beating out device
DE10052364C2 (en) * 2000-10-21 2003-06-26 Jun Hans Weismann Tool for denting a dent e.g. from body panels or for removing components, e.g. Company emblems, of bodies

Also Published As

Publication number Publication date
EP1644139A1 (en) 2006-04-12
DE502004007236D1 (en) 2008-07-03
DE10332182A1 (en) 2005-02-10
ATE395989T1 (en) 2008-06-15
DK1644139T3 (en) 2008-09-15
ES2307021T3 (en) 2008-11-16
WO2005007312A1 (en) 2005-01-27

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