EP1644139A1 - Device for pulling out dents - Google Patents

Device for pulling out dents

Info

Publication number
EP1644139A1
EP1644139A1 EP04740915A EP04740915A EP1644139A1 EP 1644139 A1 EP1644139 A1 EP 1644139A1 EP 04740915 A EP04740915 A EP 04740915A EP 04740915 A EP04740915 A EP 04740915A EP 1644139 A1 EP1644139 A1 EP 1644139A1
Authority
EP
European Patent Office
Prior art keywords
legs
holder
leg
pair
toothing
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
EP04740915A
Other languages
German (de)
French (fr)
Other versions
EP1644139B1 (en
Inventor
Olaf Ritter
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.)
Adolf Wuerth GmbH and Co KG
Original Assignee
Adolf Wuerth GmbH and Co KG
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 Adolf Wuerth GmbH and Co KG filed Critical Adolf Wuerth GmbH and Co KG
Publication of EP1644139A1 publication Critical patent/EP1644139A1/en
Application granted granted Critical
Publication of EP1644139B1 publication Critical patent/EP1644139B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • 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

  • concave dents can be pulled out of sheet metal, in particular motor vehicle bodies, with the aid of special devices.
  • an adapter is glued into the bulge, which can then be pulled out with the device.
  • weld a pin into the bulge which can also be pulled out.
  • the holder contains four legs protruding from a plate, which are firmly connected to a flat ring element in the region of their opposite ends.
  • This ring element is placed on the sheet metal around the bulge to be pulled out, an adhesive adapter is glued into the bulge, which projects through the plate with a rod. 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. With bumps that are significantly smaller than the inner diameter of the support element, such a device does not lead to satisfactory results.
  • an adapter element can be inserted into the central opening of the ring element, 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.
  • pliers for pulling out which are also supported with a support element on the sheet to be processed (EP 11 36 145).
  • the invention is based on the object of creating a possibility of allowing a better adaptation to the shape and size of the bulge, in order thereby to be able to achieve improved work results.
  • the invention proposes a device with the features mentioned in claim 1. Developments of the invention are the subject of dependent claims.
  • the invention therefore 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 shape of the bulge. The closer the support points are to the circumference of the bulge, the more reliably it is ensured that the sheet is only stressed in the area of the actual bulge.
  • a leg can be adjusted in a direction that changes the distance of the support point assigned to this leg from the support point assigned to another leg. In the simplest case, this happens because the leg can be pivoted about an axis running transversely to the direction of pull. In principle, the possibility of moving the leg transversely to the pulling direction instead of pivoting it is also possible, but requires more effort.
  • the leg which is adjustable, can then also be fixed or locked.
  • a one-sided adjustment can be sufficient.
  • all legs of the holder can be adjusted, the adjustment preferably being independent of one another.
  • the support points can be arranged close to the circumference of the bulge, but on the other hand the front area 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 pair of legs.
  • the locking can in particular be a latching, which has the advantage that an adjustment is reliably prevented and without any special effort once the correct position has been set.
  • the latching can be produced for example by spring action and can also be released again against spring action.
  • the locking takes place by means of a toothing, so that an adjustment in several positions is possible.
  • the end of the adjustable leg assigned to the holder has a toothing and the holder has a counter toothing, the engagement being releasable by a radial displacement of a shaft on which the leg is mounted, this shaft preferably being spring-loaded.
  • the pair of legs can have, for example, a common shaft, which can also be spring-loaded in the case of locking with the aid of the toothing.
  • at least one leg is designed to be pivotable in a stepless manner.
  • the stepless pivoting of one pair of legs can be achieved by means of a common shaft.
  • an element which can be subjected to tension and which acts directly between the legs, for example, not between the leg and the holder, can be provided.
  • the locking element can, for example, be releasably attachable to the legs, for example in several positions.
  • the locking element is formed by a support 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 specifies the position of the legs of the holder.
  • This support element can be designed as a ring element, optionally as an interrupted ring element.
  • a further possibility of locking can be that the locking element is a threaded rod which has two regions of different thread direction and connects the two legs to one another.
  • this threaded rod can serve as an adjusting element and locking element at the same time.
  • Figure 1 schematically shows a partially sectioned side view of a device for pulling dents from sheet metal
  • Figure 2 is a partially sectioned side view from the left in Figure 1;
  • Figure 3 is a detailed view of the device of Figure 1 in a modified embodiment
  • Figure 4 shows a further detailed view of a modified embodiment.
  • FIGS. 1 and 2 schematically show a device with which a bump can be pulled out of sheet metal.
  • the device contains 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 FIGS. 1 and 2 upwards.
  • the zero position of the tension element 3 can be adjusted with the aid 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 and can be brought into a tension-resistant connection with an adhesive adapter to be glued into the bulge.
  • the holder has at least two legs 8, 9, wherein in the illustrated embodiment two legs 9 and 8 are combined to form a pair of legs which are connected to one another via a first shaft 10 and a second shaft 11.
  • the end of the legs 8, 9 assigned to the holder 1 is provided with a toothing 12 along a semicircle.
  • the holder itself is provided with counter teeth 13 in an area assigned to this upper end of the legs 8, 9, the counter teeth sometimes being only partially formed.
  • a support element 16 is attached to the shaft 11 connecting the two legs of a pair of legs, for example by means 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 directly next to the outer circumference of the bulge. Because only the sheet within the dent 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 toothing 12 and the counter toothing 13 disengage. Then you can swivel the pair of legs a little until they are in the correct position. Then the tension spring 14 restores the locking ago.
  • the adjustment on both sides has the advantage that you can orient the tension element with its adapter 7 to the lowest point of the dent, even if it is not arranged symmetrically in the middle of the dent.
  • FIG. 3 shows the end of the legs 18, 19 assigned to the sheet metal in a modified embodiment.
  • the adjustment and locking of the end of the legs assigned to the sheet and thus the support points between the pairs of legs 18, 19 themselves and not between the holder 1 and the legs takes place here.
  • a nut is connected to the shaft 11 forming the pair of legs 18, and also to the shaft 11 of the other pair of legs 19.
  • a threaded rod 20 is screwed through the two nuts and has a section 21 with a right-hand thread and a section 22 with a left-hand thread.
  • the threaded rod 20 By turning the threaded rod 20 with the aid of a knurled head 23, the distance between the two pairs of legs 18, 19 can be adjusted and locked at the same time.
  • the two pairs of legs 18, 19 are adjusted simultaneously and in opposite directions, which no longer has the advantage of independently adjusting the two pairs of legs, but is sufficient and easier to handle in the normal case.
  • Figure 4 shows another possibility similar to Figure 3. While in the embodiments according to FIGS. 1 to 3 the support elements 16 were separate from each other for each leg or pair of legs, in the embodiment according to FIG. 4 a support element 26 which is common to all legs and has an approximately ring shape is used. This support element 26 also has indicated holding shoes 24 with which it can be clamped on the shafts 11. In the embodiment according to FIG. 4, the support element 26 determines the distance between the ends of the legs 8, 9 assigned to the sheet metal, so that the pairs of legs 18, 19 can be freely pivoted about the shafts 10. Since the waves 10, 11 are not on the ends of a rectangle, stable alignment is also possible here.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

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

Beschreibung description
Vorrichtung zum Herausziehen von BeulenDevice for pulling out dents
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 concave dents can be pulled out of sheet metal, in particular motor vehicle bodies, with the aid of special devices. For example, an adapter is glued into the bulge, which can then be pulled out with the device. It is also known to weld a pin into the bulge, 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 verbun- den 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 Pat. No. 5,203,196), the holder contains four legs protruding from a plate, which are firmly connected to a flat ring element in the region of their opposite ends. This ring element is placed on the sheet metal around the bulge to be pulled out, an adhesive adapter is glued into the bulge, which projects through the plate with a rod. 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. With 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, an adapter element can be inserted into the central opening of the ring element, 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). 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.Also known are pliers for pulling out, which are also supported with a support element on the sheet to be processed (EP 11 36 145). The invention is based on the object of creating a possibility of allowing a better adaptation to the shape and size of the bulge, in order thereby to be able to achieve improved work results.
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 achieve this object, the invention proposes a device with the features mentioned in claim 1. 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 therefore 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 shape of the bulge. The closer the support points are to the circumference of the bulge, the more reliably it is ensured that the sheet is only stressed in the area of the actual bulge.
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 possibility of how 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 assigned to this leg from the support point assigned to another leg. In the simplest case, this happens because the leg can be pivoted about an axis running transversely to the direction of pull. In principle, the possibility of moving the leg transversely to the pulling direction instead of pivoting it is also possible, but requires more effort.
In der verstellten Position ist das Bein, das verstellbar ist, dann auch festleg bar bzw. arretierbar.In the adjusted position, the leg, which is adjustable, can then also be fixed or locked.
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 can be sufficient. However, since one cannot assume that the bump is always fixed, it is it makes sense and is within the scope of the invention that all legs of the holder can be adjusted, the adjustment preferably being independent of one another. In this way, on the one hand the support points can be arranged close to the circumference of the bulge, but on the other hand the front area 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 can be provided according to the invention that two legs are combined to form a jointly pivotable and jointly lockable pair of legs.
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 einge- stellt wurde. Die Verrastung kann beispielsweise durch Federwirkung hergestellt und gegen Federwirkung auch wieder gelöst werden.The locking can in particular be a latching, which has the advantage that an adjustment is reliably prevented and without any special effort once the correct position has been set. The latching can be produced for example by spring action and can also be released again 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 means of a toothing, so that an adjustment in several positions is possible.
Beispielsweise kann vorgesehen sein, 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.For example, it can be provided that the end of the adjustable leg assigned to the holder has a toothing and the holder has a counter toothing, the engagement being releasable by a radial displacement of a shaft on which the leg is mounted, this shaft preferably being 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. 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.If a pair of legs is present, the pair of legs can have, for example, a common shaft, which can also be spring-loaded in the case of locking with the aid of the toothing. However, it is also possible and within the scope of the invention that at least one leg is designed to be pivotable in a stepless manner. Here, too, the stepless pivoting of one pair of legs can be achieved by means of a common shaft.
Zur Arretierung kann bei einer stufenlosen Verschwenkung, aber auch bei einer abgestuften Verschwenkung, ein auf Zug beanspruchbares E- lement vorgesehen sein, das beispielsweise zwischen den Beinen direkt wirkt, also nicht zwischen Bein und Halterung.For locking purposes, in the case of a stepless pivoting, but also in the case of a stepped pivoting, an element which can be subjected to tension and which acts directly between the legs, for example, not between the leg and the holder, can be provided.
Das Arretierelement kann beispielsweise lösbar an den Beinen anbringbar sein, beispielsweise in mehreren Positionen.The locking element can, for example, be releasably 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 possibility of how the legs can be locked is that the locking element is formed by a support 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 specifies the position of the legs of the holder.
Dieses Abstützelement kann als Ringelement ausgebildet sein, gegebenenfalls als unterbrochenes Ringelement.This support element can be designed 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.A further possibility of locking can be that the locking element is a threaded rod which has two regions of different thread direction and connects the two legs to one another. Here, this threaded rod can serve as an adjusting element and locking element at the same time.
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:Further features, details and advantages of the invention emerge from the patent claims and the abstract, the wording of both of which is made by reference to the content of the description the following description of preferred embodiments of the invention and with reference to the drawing. Here show:
Figur 1 schematisch eine teilweise geschnittene Seitenansicht einer Vorrichtung zum Herausziehen von Beulen aus Blech;Figure 1 schematically shows a partially sectioned side view of a device for pulling dents from sheet metal;
Figur 2 eine teilweise geschnittene Seitenansicht von links in Figur 1 ;Figure 2 is a partially sectioned side view from the left in Figure 1;
Figur 3 eine Detailansicht der Vorrichtung nach Figur 1 bei einer geänderten Ausführungsform;Figure 3 is a detailed view of the device of Figure 1 in a modified embodiment;
Figur 4 eine weitere Detailansicht einer geänderten Ausführungsform.Figure 4 shows a further 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 Verschie- bung 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 Anzeige- elements 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 genom- men. 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 zu- sammengefasst 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 verse- hen, 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 Fe- der 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.Figures 1 and 2 schematically show a device with which a bump can be pulled out of sheet metal. The device contains 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 FIGS. 1 and 2 upwards. The zero position of the tension element 3 can be adjusted with the aid 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 lower end of the holder 1 in FIG. 1, an adapter 7 is attached to the tension element 3 and can be brought into a tension-resistant connection with an adhesive adapter to be glued into the bulge. Further details are not shown. For this purpose, reference is made to EP 11 36 145 already mentioned at the beginning. The device is intended to be placed on the sheet in the region of the bulge to be pulled out. For this purpose, the holder has at least two legs 8, 9, wherein in the illustrated embodiment two legs 9 and 8 are combined to form a pair of legs which are connected to one another via a first shaft 10 and a second shaft 11. The end of the legs 8, 9 assigned to the holder 1 is provided with a toothing 12 along a semicircle. The holder itself is provided with counter teeth 13 in an area assigned to this upper end of the legs 8, 9, the counter teeth sometimes being only partially formed. The upper shaft 10 connecting the two legs 9 of a pair of legs, see also FIG. 2, is acted upon by a tension spring 14, indicated only schematically, 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 on the end of the legs 8, 9 facing the holder 1 engages with the toothing of the holder 1. This fixes the angular position of the legs 8, 9.
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 unmittel- bar 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 Ver- zahnung 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 area of the opposite end of the legs 8, 9, a support element 16 is attached to the shaft 11 connecting the two legs of a pair of legs, for example by means 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 directly next to the outer circumference of the bulge. Because only the sheet within the dent should be pulled out with the device. In the embodiment according to FIGS. 1 and 2, 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 toothing 12 and the counter toothing 13 disengage. Then you can swivel the pair of legs a little until they are in the correct position. Then the tension spring 14 restores the locking ago. The adjustment on both sides has the advantage that you can orient the tension element with its adapter 7 to the lowest point of the dent, even if it is not arranged symmetrically in the middle of the dent.
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 zwi- sehen 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.FIG. 3 shows the end of the legs 18, 19 assigned to the sheet metal in a modified embodiment. The adjustment and locking of the end of the legs assigned to the sheet and thus the support points between the pairs of legs 18, 19 themselves and not between the holder 1 and the legs takes place here. A nut is connected to the shaft 11 forming the pair of legs 18, and also to the shaft 11 of the other pair of legs 19. A threaded rod 20 is screwed through the two nuts and has a section 21 with a right-hand thread and a section 22 with a left-hand thread. By turning the threaded rod 20 with the aid of a knurled head 23, the distance between the two pairs of legs 18, 19 can be adjusted and locked at the same time. In this case, the two pairs of legs 18, 19 are adjusted simultaneously and in opposite directions, which no longer has the advantage of independently adjusting the two pairs of legs, but is sufficient and easier to handle in 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. Figure 4 shows another possibility similar to Figure 3. While in the embodiments according to FIGS. 1 to 3 the support elements 16 were separate from each other for each leg or pair of legs, in the embodiment according to FIG. 4 a support element 26 which is common to all legs and has an approximately ring shape is used. This support element 26 also has indicated holding shoes 24 with which it can be clamped on the shafts 11. In the embodiment according to FIG. 4, the support element 26 determines the distance between the ends of the legs 8, 9 assigned to the sheet metal, so that the pairs of legs 18, 19 can be freely pivoted about the shafts 10. Since the waves 10, 11 are not on the ends of a rectangle, stable alignment is also possible here.

Claims

Patentansprüche claims
1. Vorrichtung zum Herausziehen von Beulen aus Blech, mit 1.1 einer Halterung (1), die 1.1.1 mindestens zwei mit je mindestens einer Abstützstelle versehene Beine (8, 9, 18, 19) aufweist, 1.2 einem Zugelement (3) zur Verbindung mit der Beule, 1.3 einem Betätigungselement (2) zum Verschieben des Zugelements (3) gegenüber der Halterung (1) in Zugrichtung, sowie mit 1.4 einer Versteileinrichtung zum Verstellen des Abstands zwischen mindestens zwei Abstützstellen.1. Device for pulling out dents from sheet metal, with 1.1 a holder (1), which 1.1.1 has at least two legs (8, 9, 18, 19) each provided with at least one support point, 1.2 a tension element (3) for connection with the bulge, 1.3 an actuating element (2) for displacing the pulling element (3) relative to the holder (1) in the pulling direction, and with 1.4 an adjusting device for adjusting the distance between at least two support points.
2. Vorrichtung nach Anspruch 1 , bei der mindestens ein Bein (8, 9, 18, 19) um eine quer zur Zugrichtung verlaufende Achse verschwenkbar und in mehreren Stellungen arretierbar ist.2. Device according to claim 1, in which at least one leg (8, 9, 18, 19) can be pivoted about an axis running transversely to the pulling direction and can be locked in several positions.
3. Vorrichtung nach Anspruch 1 oder 2, bei der zwei Beine (8, 9, 18, 19) vorzugsweise unabhängig voneinander verschwenkbar und arretierbar sind.3. Device according to claim 1 or 2, in which two legs (8, 9, 18, 19) are preferably independently pivotable and lockable.
4. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der zwei Beine (8, 9, 18, 19) zu einem gemeinsam verschwenkbaren Beinpaar zusammengefasst sind.4. Device according to one of the preceding claims, in which two legs (8, 9, 18, 19) are combined to form a jointly pivotable pair of legs.
5. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der mindestens ein Bein (8, 9) bzw. Beinpaar verrastend arretierbar ist.5. Device according to one of the preceding claims, in which at least one leg (8, 9) or pair of legs can be locked in a latching manner.
6. Vorrichtung nach Anspruch 5, bei der die Verrastung eine Verzahnung (12, 13) aufweist. 6. The device according to claim 5, wherein the latching has a toothing (12, 13).
7. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der das der Halterung (1) zugeordnete Ende des verstellbaren Beins (8, 9) eine Verzahnung (12) und die Halterung (1) eine Gegenverzahnung (13) aufweist, wobei der Eingriff zwischen beiden Ver- zahnungen (12, 13) durch axiale und/oder radiale Verlagerung des verstellbaren Beins (8, 9) lösbar ist, gegebenenfalls gegen die Beaufschlagung durch eine Feder (14).7. Device according to one of the preceding claims, wherein the end of the adjustable leg (8, 9) associated with the holder (1) has a toothing (12) and the holder (1) has a counter toothing (13), the engagement between the two Toothings (12, 13) can be detached by axially and / or radially displacing the adjustable leg (8, 9), possibly against the action of a spring (14).
8. Vorrichtung nach einem der Ansprüche 4 bis 7, bei der mindes- tens ein Beinpaar eine gemeinsame Welle (10) aufweist.8. Device according to one of claims 4 to 7, wherein at least one pair of legs has a common shaft (10).
9. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der mindestens ein Bein (18, 19) stufenlos verschwenkbar ausgebildet ist.9. Device according to one of the preceding claims, in which at least one leg (18, 19) is designed to be continuously pivotable.
10. Vorrichtung nach einem der vorhergehenden Ansprüche, bei der zur Arretierung ein auf Zug beanspruchbares Element vorgesehen ist, das an mindestens zwei Beinen (18, 19) angreift.10. Device according to one of the preceding claims, wherein for locking a tensile element is provided which engages on at least two legs (18, 19).
11. Vorrichtung nach Anspruch 10, bei der das Arretierelement lösbar an den Beinen (18, 19) anbringbar ist.11. The device according to claim 10, wherein the locking element is releasably attachable to the legs (18, 19).
12. Vorrichtung nach Anspruch 10 oder 11 , bei der das Arretierelement von einem die Abstützstellen aufweisenden Abstützelement (26) gebildet ist.12. The apparatus of claim 10 or 11, wherein the locking element is formed by a supporting element (26) having the support points.
13. Vorrichtung nach Anspruch 12, bei der das Abstützelement (26) als Ringelement ausgebildet ist, gegebenenfalls als unterbrochenes Ringelement. 13. The apparatus of claim 12, wherein the support element (26) is designed as a ring element, optionally as an interrupted ring element.
4. Vorrichtung nach Anspruch 10 oder 11 , bei der das Arretierelement eine zwei Beine (18, 19) verbindende Gewindestange (20) mit zwei Bereichen entgegengesetzter Gewinderichtung aufweist. 4. Apparatus according to claim 10 or 11, wherein the locking element has a two legs (18, 19) connecting threaded rod (20) with two areas of opposite thread direction.
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 true EP1644139A1 (en) 2006-04-12
EP1644139B1 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
EP1315586A1 (en) * 2000-09-05 2003-06-04 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005007312A1 *

Also Published As

Publication number Publication date
ES2307021T3 (en) 2008-11-16
WO2005007312A1 (en) 2005-01-27
DK1644139T3 (en) 2008-09-15
ATE395989T1 (en) 2008-06-15
DE502004007236D1 (en) 2008-07-03
DE10332182A1 (en) 2005-02-10
EP1644139B1 (en) 2008-05-21

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