EP0284749A2 - Adapter for clamping a portable angle grinder - Google Patents

Adapter for clamping a portable angle grinder Download PDF

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Publication number
EP0284749A2
EP0284749A2 EP88102061A EP88102061A EP0284749A2 EP 0284749 A2 EP0284749 A2 EP 0284749A2 EP 88102061 A EP88102061 A EP 88102061A EP 88102061 A EP88102061 A EP 88102061A EP 0284749 A2 EP0284749 A2 EP 0284749A2
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EP
European Patent Office
Prior art keywords
adapter
angle grinder
clamping
adapter according
fork
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.)
Withdrawn
Application number
EP88102061A
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German (de)
French (fr)
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EP0284749A3 (en
Inventor
Robert Wolff
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.)
WERKZEUG-GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
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Werkzeug-Gesellschaft mbH
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Application filed by Werkzeug-Gesellschaft mbH filed Critical Werkzeug-Gesellschaft mbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
    • B24B23/005—Auxiliary devices used in connection with portable grinding machines, e.g. holders

Definitions

  • the invention relates to an adapter for clamping a hand-held angle grinder on a stationary holder having a standard clamping ring, e.g. on a drill stand or on a clamp-like clamping device.
  • Hand-held angle grinders are widely used in particular by do-it-yourselfers, for example for smooth grinding of wooden and metal parts or for light rough grinding work.
  • the common angle grinders are guided by one hand and also usually have two mounting holes on their gear head for screwing down a handle, which enables additional guidance with the second hand.
  • the invention has for its object to enable a stationary use of hand-held angle grinder.
  • an adapter is provided according to the invention, which is characterized by a prong that can be clamped to the head of the angle grinder having fork, which carries a standard insert ring on its back, the outer diameter of which is equal to the outer diameter of the clamping neck of hand drills.
  • the adapter With the help of the adapter it is now possible to use hand-held angle grinders like a hand drill in holders with a standard clamping ring, e.g. Drill stands or clamp-like jigs. This enables a quick and easy conversion of such angle grinders to stationary use.
  • the adapter itself consists of a few, inexpensive parts that are easy to handle.
  • the mouth width of the fork tines can be adjustable according to the invention. This ensures the adaptation of the adapter to the respective width of the angle grinder heads, so that all commercially available angle grinders can be clamped stationary using the same adapter.
  • the fork back consists of an elongated base plate, on one longitudinal half of which two angles forming the fork tines are adjustably fastened and on the other longitudinal half of which the insertion ring is formed, the fork tines and the insertion ring being in opposite directions from the Protect the base plate.
  • the adapter is mounted on the angle grinder so that the fork tines the angle grinder Hold the head on the side while the back of the fork supports the back of the angle grinder head. This prevents the adapter and angle grinder from slipping when working. Since the insert ring of the adapter is attached to the side facing away from the angle grinder, the angle grinder remains freely accessible even after installation on a holder.
  • both legs of the angle are each provided with an elongated hole for receiving fastening screws which are adapted to the screw-in holes provided for angle grinders for handles.
  • This measure allows the fastening screws to be positioned so that they can be screwed into the handle screw holes of all commercially available angle grinders. This ensures a secure fixation of the adapter on the angle grinder head. Since angle grinders usually have these screw holes anyway, additional fastenings are therefore unnecessary.
  • the adapter in the case of angle grinders that do not have handle screw-in holes, can be fixed to the angle grinder by means of a crossbar that encompasses the angle grinder head at the front and can be clamped to the fork tines.
  • three support points for the back of the angle grinder head are arranged on the base plate. Two support points are near the forks and the third support point arranged concentrically to the insertion ring, the third support point being formed by a threaded spindle guided in the base plate.
  • This three-point bearing of the angle grinder head has the advantage that even in the upper speed range, largely vibration and vibration-free work is possible.
  • a fixed system adapted to the respective geometry of the angle grinder head can be produced, and angle grinders can be clamped tightly in the adapter.
  • the base plate can also be provided on both narrow sides next to the fork tines, each with a receiving hole for a screw-on handle.
  • the adapter is assigned a clamp that can be clamped to a workbench, on the workbench support leg and back leg of which a standard clamping ring is provided for optionally receiving the standard plug-in ring of the adapter, the axis of the clamping rings each being perpendicular to the plane of the associated support leg or back leg are directed.
  • the adapter can be assigned a collet for shaft tools that can be clamped on the drive shaft of the angle grinder in exchange for the grinding wheel.
  • the angle grinder can be used as a stationary, high-speed machine for shaft tools such as milling cutters, drills or wire brushes.
  • Fig. 1 shows an adapter 1, which consists essentially of a fork 4 having two prongs 2, 3, which carries a standard insert ring 5 on its back, which is only indicated by dashed lines here.
  • the back of the fork 4 consists of an elongated base plate 6, on one longitudinal half 7 of which the insert ring 5 is formed and on the other longitudinal half 10 two brackets 8, 9 forming the fork tines 2, 3 are fastened, the fork tines 2, 3 and Protrude insert ring 5 in opposite directions.
  • the angles 8, 9 are each provided on their horizontal leg with an elongated hole 11, 12, to which elongated holes 13, 14 are assigned in the base plate 6.
  • the angles 8, 9 are fastened to the base plate 6 by means of fastening screws 15, 16 which penetrate the respective pair of elongated holes 11, 13 or 12, 14 and are screwed into sliding blocks 17, 18 arranged on the base plate 6 and having threads.
  • the base plate 6 also has on its narrow sides next to its fork tines 2, 3 each a threaded receiving hole 19, 20 for a handle 21.
  • three support points 22, 23, 24 are arranged on the base plate 6, which serve to support the rear side 25 of the angle grinder head 26, cf. also Fig. 3 and Fig. 4. While the two support points 22, 23 are arranged near the fork tines 2, 3, the third support point 24 is arranged to the insertion ring 5, this support points 24 being formed by a threaded spindle 27 which is in a is inserted into the base plate 6 nut.
  • the two legs 28, 29 of the angle 8, 9 are also each with one Elongated hole 30, 31 provided for receiving fastening screws 33, 34, with which the adapter is screwed onto screw holes 35, 36 provided on the angle grinder head 26 for handles 21.
  • FIG. 3 schematically shows an angle grinder head 26 fastened in the adapter 1 with a mounted grinding wheel 37, the threaded spindle 27 being set up to tight contact with the angle grinder head 26.
  • the assembly on a clamp-like clamping device is shown here in an exploded view, which essentially consists of a clamp 39 clamped to a workbench 38 and a machine holder 40.
  • the machine holder 40 has a clamping ring 41, the inside diameter of which corresponds to the outside diameter of the insert ring 5 of the adapter 1, and which in turn is clamped with its inserting end 40a into a clamping ring 39a of the screw clamp 39.
  • FIG. 4 shows a perspective view of the screw clamp 39, the workbench support leg of which has the clamping ring 39a and the back leg of which has a further clamping ring 39b.
  • the central axes of the clamping rings 39a and 39b are each oriented at right angles to the plane of the associated clamp leg and thus at right angles to one another.
  • the adapter 1 carrying the angle grinder 26 can optionally be inserted with its standard insertion end 5 into the one or the other clamping ring 39a or 39b and clamped by means of the screw 39c, the grinding wheel 37 in one case, cf. 5, horizontally above the workbench 38 and in the other case perpendicularly in front of the edge of the workbench, cf. Fig. 6.
  • Fig. 7 shows a schematic representation of the adapter 1 with the angle grinder head 26 when clamped to a drill stand 42.
  • the angle grinder 26 here, in exchange for the grinding wheel 37, carries a collet 44 screwed onto its drive shaft 43 for shank tools 45, here for example a milling cutter .
  • the clamping parts 44a are seated in a screw-on sleeve 46 and can be clamped by a clamping nut 47 while enclosing the shank tool 45.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Manipulator (AREA)

Abstract

To permit stationary operation of commercially available, portable angle grinders (26), an adaptor (1) is provided for clamping the angle grinder to a stationary holder having a standard clamping ring (41), for example to a drill stand or to a clamping device (39, 40) like a screw clamp, which adaptor (1) is characterised by a fork (4) which can be firmly clamped to the head (26) of the angle grinder, has prongs (2, 3) and carries a standard push-in ring (5) on its back. <IMAGE>

Description

Die Erfindung betrifft einen Adapter zum Aufspannen eines handgeführten Winkelschleifers an einem stationären, einen Norm-Einspannring aufweisenden Halter, z.B. an einem Bohrständer oder an einer schraubzwingenartigen Aufspannvorrichtung.The invention relates to an adapter for clamping a hand-held angle grinder on a stationary holder having a standard clamping ring, e.g. on a drill stand or on a clamp-like clamping device.

Handgeführte Winkelschleifer finden insbesondere bei Heimwerkern breite Anwendung, beispielsweise zum Glattschleifen von Holz- und Metallteilen oder für leichte Schruppschleifarbeiten. Die gängigen Winkelschleifer werden von einer Hand geführt und besitzen zudem meist an ihrem Getriebekopf zwei Aufnahmebohrungen zum Festschrauben eines Handgriffes, der eine zusätzliche Führung mit der zweiten Hand ermöglicht.Hand-held angle grinders are widely used in particular by do-it-yourselfers, for example for smooth grinding of wooden and metal parts or for light rough grinding work. The common angle grinders are guided by one hand and also usually have two mounting holes on their gear head for screwing down a handle, which enables additional guidance with the second hand.

Der Erfindung liegt die Aufgabe zugrunde, einen stationären Einsatz handgeführter Winkelschleifer zu ermöglichen.The invention has for its object to enable a stationary use of hand-held angle grinder.

Zur Lösung dieser Aufgabe ist erfindungsgemäß ein Adapter vorgesehen, der gekennzeichnet ist durch eine am Kopf des Winkelschleifers festspannbare, Zinken aufweisende Gabel, welche an ihrem Rücken einen Norm-Einsteckring trägt, dessen Außendurchmesser also gleich dem Außendurchmesser des Einspannhalses von Handbohrmaschinen ist.To solve this problem, an adapter is provided according to the invention, which is characterized by a prong that can be clamped to the head of the angle grinder having fork, which carries a standard insert ring on its back, the outer diameter of which is equal to the outer diameter of the clamping neck of hand drills.

Mit Hilfe des Adapters ist es nun möglich, handge­führte Winkelschleifer wie eine Handbohrmaschine in, einen Norm-Einspannring aufweisenden Haltern, z.B. Bohrständern oder schraubzwingenartigen Aufspann­vorrichtungen, einzuspannen. Hierdurch ist eine schnelle und bequeme Umrüstung solcher Winkelschleifer auf den stationären Einsatz durchführbar. Der Adapter selbst besteht aus wenigen, kostengünstig herstellbaren Teilen, deren Handhabung sofort über­schaubar ist.With the help of the adapter it is now possible to use hand-held angle grinders like a hand drill in holders with a standard clamping ring, e.g. Drill stands or clamp-like jigs. This enables a quick and easy conversion of such angle grinders to stationary use. The adapter itself consists of a few, inexpensive parts that are easy to handle.

Gemäß einer bevorzugsten Ausführungsform kann der Erfindung zufolge die Maulweite der Gabelzinken einstellbar sein. Damit ist die Anpassung des Adapters an die jeweilige Breite der Winkelschleiferköpfe gewährleistet, so daß alle marktüblichen Winkel­schleifer mit Hilfe desselben Adapters stationär aufgespannt werden können.According to a preferred embodiment, the mouth width of the fork tines can be adjustable according to the invention. This ensures the adaptation of the adapter to the respective width of the angle grinder heads, so that all commercially available angle grinders can be clamped stationary using the same adapter.

Der Erfindung zufolge kann ferner vorgesehen werden, daß der Gabelrücken aus einer länglichen Grundplatte besteht, an deren einer Längshälfte zwei die Gabel­zinken bildende Winkel verstellbar befestigt sind und an deren anderer Längshälfte der Einsteckring ange­formt ist, wobei die Gabelzinken und der Einsteckring in entgegengesetzte Richtungen von der Grundplatte abragen. Der Adapter wird hierbei am Winkelschleifer so montiert, daß die Gabelzinken den Winkelschleifer­ kopf seitlich einfassen, während der Gabelrücken die Rückseite des Winkelschleiferkopfes abstützt. Dadurch wird ein gegenseitiges Verrutschen von Adapter und Winkelschleifer beim Arbeiten verhindert. Da der Einsteckring des Adapters auf der, dem Winkelschleifer abgewandten Seite angebracht ist, bleibt der Winkel­schleifer auch nach der Montage an einem Halter frei zugänglich.According to the invention, it can further be provided that the fork back consists of an elongated base plate, on one longitudinal half of which two angles forming the fork tines are adjustably fastened and on the other longitudinal half of which the insertion ring is formed, the fork tines and the insertion ring being in opposite directions from the Protect the base plate. The adapter is mounted on the angle grinder so that the fork tines the angle grinder Hold the head on the side while the back of the fork supports the back of the angle grinder head. This prevents the adapter and angle grinder from slipping when working. Since the insert ring of the adapter is attached to the side facing away from the angle grinder, the angle grinder remains freely accessible even after installation on a holder.

In Ausgestaltung der Erfindung kann vorgesehen werden, daß beide Schenkel der Winkel jeweils mit einem Lang­loch zur Aufnahme von Befestigungsschrauben versehen sind, die den bei Winkelschleifern vorgesehenen Ein­schraublöchern für Handgriffe angepaßt sind. Durch diese Maßnahme lassen sich die Befestigungsschrauben so positionieren, daß sie in die Handgriff-Einschraub­löcher aller marktüblichen Winkelschleifer eindrehbar sind. Hiermit wird eine sichere Fixation des Adapters am Winkelschleiferkopf gewährleistet. Da Winkel­schleifer ohnehin meist diese Einschraublöcher besitzen, werden zusätzliche Befestigungen somit über­flüssig.In an embodiment of the invention it can be provided that both legs of the angle are each provided with an elongated hole for receiving fastening screws which are adapted to the screw-in holes provided for angle grinders for handles. This measure allows the fastening screws to be positioned so that they can be screwed into the handle screw holes of all commercially available angle grinders. This ensures a secure fixation of the adapter on the angle grinder head. Since angle grinders usually have these screw holes anyway, additional fastenings are therefore unnecessary.

Alternativ kann bei Winkelschleifern, die keine Hand­griff- Einschraublöcher besitzen, die Fixation des Adapters am Winkelschleifer mittels eines Querbügels erfolgen, der den Winkelschleiferkopf vorne umfaßt und an den Gabelzinken festspannbar ist.Alternatively, in the case of angle grinders that do not have handle screw-in holes, the adapter can be fixed to the angle grinder by means of a crossbar that encompasses the angle grinder head at the front and can be clamped to the fork tines.

Ferner kann vorgesehen werden, daß an der Grundplatte drei Auflagepunkte für die Rückseite des Winkel­schleiferkopfes angeordnet sind. Zwei Auflagepunkte sind nahe der Gabelzinken und der dritte Auflagepunkt konzentrisch zum Einsteckring angeordnet, wobei der dritte Auflagepunkt von einer in der Grundplatte geführten Gewindespindel gebildet ist. Diese Drei­punktlagerung des Winkelschleiferkopfes hat den Vorteil, daß auch im oberen Drehzahlbereich ein weitestgehend vibrations- und schwingungsfreies Arbeiten möglich ist. Insbesondere durch die konzen­trisch zum Einsteckring angeordnete Gewindespindel läßt sich eine feste, der jeweiligen Geometrie des Winkelschleiferkopfes angepaßte Anlage herstellen, und Winkelschleifer stramm im Adapter einspannen.It can also be provided that three support points for the back of the angle grinder head are arranged on the base plate. Two support points are near the forks and the third support point arranged concentrically to the insertion ring, the third support point being formed by a threaded spindle guided in the base plate. This three-point bearing of the angle grinder head has the advantage that even in the upper speed range, largely vibration and vibration-free work is possible. In particular, by means of the threaded spindle arranged concentrically to the insert ring, a fixed system adapted to the respective geometry of the angle grinder head can be produced, and angle grinders can be clamped tightly in the adapter.

In weiterer Ausgestaltung der Erfindung kann ferner die Grundplatte an beiden Schmalseiten neben den Gabelzinken mit je einem Aufnahmeloch für einen anschraubbaren Handgriff versehen sein. Dies hat zum Vorteil, daß bei einem Wechsel zwischen stationären und mobilen Einsätzen ein ständiges Auf- bzw. Abmontieren des Adapters überflüssig wird, da der nunmehr am Adapter angeschraubte Handgriff beim mobilen Einsatz des Winkelschleifers als zusätzliches Führungsmittel dient.In a further embodiment of the invention, the base plate can also be provided on both narrow sides next to the fork tines, each with a receiving hole for a screw-on handle. This has the advantage that when changing between stationary and mobile uses, a constant mounting or dismounting of the adapter becomes superfluous, since the handle, which is now screwed onto the adapter, serves as an additional guide for mobile use of the angle grinder.

Gemäß einer bevorzugten Ausführungsform der Erfindung ist dem Adapter eine an einer Werkbank festspannbare Schraubzwinge zugeordnet, an deren Werkbank-Auflage­schenkel und Rückenschenkel je ein Norm-Einspannring zur wahlweisen Aufnahme des Norm-Einsteckringes des Adapters vorgesehen ist, wobei die Achse der Einspann­ringe jeweils rechtwinklig zur Ebene des zugehörigen Auflageschenkels bzw. Rückenschenkels gerichtet sind.According to a preferred embodiment of the invention, the adapter is assigned a clamp that can be clamped to a workbench, on the workbench support leg and back leg of which a standard clamping ring is provided for optionally receiving the standard plug-in ring of the adapter, the axis of the clamping rings each being perpendicular to the plane of the associated support leg or back leg are directed.

In Weiterbildung der Erfindung kann dem Adapter eine im Austausch gegen die Schleifscheibe an der Antriebs­welle des Winkelschleifers aufspannbare Spannzange für Schaft-Werkzeuge zugeordnet sein. Durch diese Um­rüstung läßt sich der Winkelschleifer als stationäre, hochtourige Arbeitsmaschine für Schaft-Werkzeuge wie Fräser, Bohrer oder Drahtbürsten einsetzen.In a further development of the invention, the adapter can be assigned a collet for shaft tools that can be clamped on the drive shaft of the angle grinder in exchange for the grinding wheel. With this conversion, the angle grinder can be used as a stationary, high-speed machine for shaft tools such as milling cutters, drills or wire brushes.

Die Erfindung wird im folgenden anhand der Zeichnung näher erläutert. In der Zeichnung zeigen:

  • Fig. 1 einen Adapter nach der Erfindung in Drauf­sicht,
  • Fig. 2 einen Schnitt durch den Adapter gemäß der Linie II-II in Fig. 1,
  • Fig. 3 einen mittels Adapter an einer Aufspann­vorrichtung aufgespannter Winkelschleifer in Explosiv-Darstellung,
  • Fig. 4 in perspektivischer Ansicht eine dem Adapter zugeordnete Schraubzwinge,
  • Fig. 5 und 6 in Explosionsdarstellung zwei ver­schiedene Aufspannlagen für einen Winkel­schleifer und
  • Fig. 7 einen mittels Adapter an einem Bohrständer aufgespannten Winkelschleifer mit Spann­zange.
The invention is explained in more detail below with reference to the drawing. The drawing shows:
  • 1 shows an adapter according to the invention in plan view,
  • 2 shows a section through the adapter along the line II-II in FIG. 1,
  • 3 an angle grinder clamped by means of an adapter on a clamping device in an exploded view,
  • 4 is a perspective view of a screw clamp assigned to the adapter,
  • 5 and 6 in an exploded view two different clamping positions for an angle grinder and
  • Fig. 7 an angle grinder clamped on a drill stand with an adapter.

Fig. 1 zeigt einen Adapter 1, der im wesentlichen aus einer zwei Zinken 2, 3 aufweisenden Gabel 4 besteht, welche an ihrem Rücken einen Norm-Einsteckring 5 trägt, der hier nur gestrichelt angedeutet ist. Der Rücken der Gabel 4 besteht aus einer länglichen Grundplatte 6, an deren einer Längshälfte 7 der Ein­steckring 5 angeformt ist und an deren anderer Längs­hälfte 10 zwei die Gabelzinken 2, 3 bildende Winkel 8, 9 befestigt sind, wobei die Gabelzinken 2, 3 und der Einsteckring 5 in entgegengesetzte Richtungen abragen. Die Winkel 8, 9 sind an ihrem Horizontalschenkel jeweils mit einem Langloch 11, 12 versehen, denen Langlöcher 13, 14 in der Grundplatte 6 zugeordnet sind. Die Befestigung der Winkel 8, 9 an der Grundplatte 6 erfolgt über Befestigungsschrauben 15, 16, die das jeweilige Langlochpaar 11, 13 bzw. 12, 14 durchsetzen und in, an der Grundplatte 6 angeordnete, Gewinde aufweisende Gleitsteine 17, 18 eingeschraubt sind. Die Grundplatte 6 weist zudem an ihren Schmalseiten neben ihren Gabelzinken 2, 3 je ein Gewinde-Aufnahmeloch 19, 20 für einen Handgriff 21 auf.Fig. 1 shows an adapter 1, which consists essentially of a fork 4 having two prongs 2, 3, which carries a standard insert ring 5 on its back, which is only indicated by dashed lines here. The back of the fork 4 consists of an elongated base plate 6, on one longitudinal half 7 of which the insert ring 5 is formed and on the other longitudinal half 10 two brackets 8, 9 forming the fork tines 2, 3 are fastened, the fork tines 2, 3 and Protrude insert ring 5 in opposite directions. The angles 8, 9 are each provided on their horizontal leg with an elongated hole 11, 12, to which elongated holes 13, 14 are assigned in the base plate 6. The angles 8, 9 are fastened to the base plate 6 by means of fastening screws 15, 16 which penetrate the respective pair of elongated holes 11, 13 or 12, 14 and are screwed into sliding blocks 17, 18 arranged on the base plate 6 and having threads. The base plate 6 also has on its narrow sides next to its fork tines 2, 3 each a threaded receiving hole 19, 20 for a handle 21.

Wie in Fig. 1 und 2 gezeigt, sind an der Grundplatte 6 drei Auflagepunkte 22, 23, 24 angeordnet, die zur Ab­stützung der Rückseite 25 des Winkelschleiferkopfes 26 dienen, vgl. auch Fig. 3 und Fig. 4. Während die beiden Auflagepunkte 22, 23 nahe der Gabelzinken 2, 3 angeordnet sind, ist der dritte Auflagepunkt 24 isch zum Einsteckring 5 angeordnet, wobei dieser Auflagepunkte 24 von einer Gewindespindel 27 gebildet ist, die in einer in die Grundplatte 6 ein­gelassenen Mutter geführt ist. Die beiden Schenkel 28, 29 der Winkel 8, 9 sind ebenfalls jeweils mit einem Langloch 30, 31 zur Aufnahme von Befestigungsschrauben 33, 34 versehen, mit denen der Adapter an am Winkelschleiferkopf 26 vorgesehenen Einschraublöchern 35, 36 für Handgriffe 21 festgeschraubt wird.As shown in FIGS. 1 and 2, three support points 22, 23, 24 are arranged on the base plate 6, which serve to support the rear side 25 of the angle grinder head 26, cf. also Fig. 3 and Fig. 4. While the two support points 22, 23 are arranged near the fork tines 2, 3, the third support point 24 is arranged to the insertion ring 5, this support points 24 being formed by a threaded spindle 27 which is in a is inserted into the base plate 6 nut. The two legs 28, 29 of the angle 8, 9 are also each with one Elongated hole 30, 31 provided for receiving fastening screws 33, 34, with which the adapter is screwed onto screw holes 35, 36 provided on the angle grinder head 26 for handles 21.

Fig 3 zeigt schematisch einen im Adapter 1 be­festigten Winkelschleiferkopf 26 mit montierter Schleifscheibe 37, wobei die Gewindespindel 27 bis zur strammen Anlage am Winkelschleiferkopf 26 eingestellt ist. In Explosiv-Darstellung ist hier die Montage an einer schraubzwingenartigen Aufspannvorrichtung gezeigt, die im wesentlichen aus einer an einer Werk­bank 38 festgespannten Schraubzwinge 39 und einem Maschinenhalter 40 besteht. Der Maschinenhalter 40 weist einen Klemmring 41 auf, dessen Innendurchmesser dem Außendurchmesser des Einsteckringes 5 des Adapters 1 entspricht, und der seinerseits mit seinem Einsteck­ende 40a in einen Einspannring 39a der Schraubzwinge 39 eingespannt wird.3 schematically shows an angle grinder head 26 fastened in the adapter 1 with a mounted grinding wheel 37, the threaded spindle 27 being set up to tight contact with the angle grinder head 26. The assembly on a clamp-like clamping device is shown here in an exploded view, which essentially consists of a clamp 39 clamped to a workbench 38 and a machine holder 40. The machine holder 40 has a clamping ring 41, the inside diameter of which corresponds to the outside diameter of the insert ring 5 of the adapter 1, and which in turn is clamped with its inserting end 40a into a clamping ring 39a of the screw clamp 39.

Fig. 4 zeigt eine perspektivische Darstellung der Schraubzwinge 39, deren Werkbank-Auflageschenkel den Einspannring 39a und dessen Rückenschenkel einen weiteren Einspannring 39b aufweisen. Die Mittelachsen der Einspannringe 39a und 39b wird jeweils recht­winklig zu der Ebene des zugehörigen Schraubzwingen­schenkels und damit rechtwinklig zueinander gerichtet. Der den Winkelschleifer 26 tragende Adapter 1 kann mit seinem Norm-Einsteckende 5 wahlweise in den unmittel­bar in den einen oder anderen Einspannring 39a bzw. 39b eingesteckt und mittels der Schraube 39c festge­spannt werden, wobei die Schleifscheibe 37 in einem Fall, vgl. Fig. 5, horizontal oberhalb der Werkbank 38 und im anderen Fall senkrecht vor der Werkbankkante liegt, vgl. Fig. 6.4 shows a perspective view of the screw clamp 39, the workbench support leg of which has the clamping ring 39a and the back leg of which has a further clamping ring 39b. The central axes of the clamping rings 39a and 39b are each oriented at right angles to the plane of the associated clamp leg and thus at right angles to one another. The adapter 1 carrying the angle grinder 26 can optionally be inserted with its standard insertion end 5 into the one or the other clamping ring 39a or 39b and clamped by means of the screw 39c, the grinding wheel 37 in one case, cf. 5, horizontally above the workbench 38 and in the other case perpendicularly in front of the edge of the workbench, cf. Fig. 6.

Fig. 7 zeigt in schematischer Darstellung den Adapter 1 mit dem Winkelschleiferkopf 26 bei Aufspannung an einem Bohrständer 42. Der Winkelschleifer 26 trägt hier im Austausch gegen die Schleifscheibe 37 eine an seiner Antriebswelle 43 aufgeschraubte Spannzange 44 für Schaft-Werkzeuge 45, hier beispielsweise einen Fräser. Die Spannteile 44a sitzen in einer Anschraub­hülse 46 und sind durch eine Spannmutter 47 unter Einfassung des Schaft-Werkzeuges 45 spannbar.Fig. 7 shows a schematic representation of the adapter 1 with the angle grinder head 26 when clamped to a drill stand 42. The angle grinder 26 here, in exchange for the grinding wheel 37, carries a collet 44 screwed onto its drive shaft 43 for shank tools 45, here for example a milling cutter . The clamping parts 44a are seated in a screw-on sleeve 46 and can be clamped by a clamping nut 47 while enclosing the shank tool 45.

Claims (9)

1. Adapter zum Aufspannen eines handgeführten Winkel­schleifers an einem stationären, einen Norm-Ein­spannring aufweisenden Halter, z.B. an einem Bohr­ständer oder an einer schraubzwingenartigen Auf­spannvorrichtung, gekennzeichnet durch eine am Kopf (26) des Winkelschleifers festspannbare, Zinken (2, 3) aufweisende Gabel (4), welche an ihrem Rücken einen Norm-Einsteckring (5) trägt.1. Adapter for clamping a hand-held angle grinder on a stationary holder with a standard clamping ring, e.g. on a drill stand or on a clamp-like clamping device, characterized by a fork (4) which can be clamped to the head (26) of the angle grinder and has tines (2, 3) and which carries a standard insert ring (5) on its back. 2. Adapter nach Anspruch 1, dadurch gekennzeichnet, daß die Maulweite der Gabelzinken (2, 3) einstell­bar ist.2. Adapter according to claim 1, characterized in that the mouth width of the fork tines (2, 3) is adjustable. 3. Adapter nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Gabelrücken aus einer länglichen Grundplatte (6) besteht, an deren einer Längshälfte (7) zwei die Gabelzinken (2, 3) bildende Winkel (8, 9) verstellbar befestigt sind und an deren anderer Längshälfte (10) der Einsteckring (5) angeformt ist, wobei die Gabelzinken (2, 3) und der Einsteckring (5) in entgegengesetzte Richtungen von der Grundplatte (6) abragen.3. Adapter according to claims 1 and 2, characterized in that the fork back consists of an elongated base plate (6), on one longitudinal half (7) of which two fork prongs (2, 3) forming angles (8, 9) are adjustably attached and on the other longitudinal half (10) of which the insert ring (5) is formed, the fork tines (2, 3) and the insert ring (5) projecting in opposite directions from the base plate (6). 4. Adapter nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß beide Schenkel (28, 29) der Winkel (8, 9) jeweils mit einem Langloch (30, 31) zur Aufnahme von Befestigungsschrauben (33, 34) versehen sind, die den bei Winkelschleifern vor­gesehenen Einschraublöchern (35, 36) für Hand­griffe (21) angepaßt sind.4. Adapter according to one of claims 1 to 3, characterized in that both legs (28, 29) of the angle (8, 9) are each provided with an elongated hole (30, 31) for receiving fastening screws (33, 34), which are adapted to the screw holes (35, 36) provided for angle grinders for handles (21). 5. Adapter nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß an der Grundplatte (6) drei Auflagepunkte (22, 23, 24) für die Rückseite (25) des Winkelschleiferkopfes (26) angeordnet sind.5. Adapter according to claims 1 to 3, characterized in that on the base plate (6) three support points (22, 23, 24) for the rear (25) of the angle grinder head (26) are arranged. 6. Adapter nach Anspruch 5, dadurch gekennzeichnet, daß zwei Auflagepunkte (22, 23) nahe der Gabel­zinken (2, 3) und der dritte Auflagepunkt (24) konzentrisch zum Einsteckring (5) angeordnet sind, und daß der dritte Auflagepunkte von einer in der Grundplatte (6) geführten Gewindespindel (27) gebildet ist.6. Adapter according to claim 5, characterized in that two support points (22, 23) near the fork tines (2, 3) and the third support point (24) are arranged concentrically to the insertion ring (5), and that the third support points of one in the base plate (6) guided threaded spindle (27) is formed. 7. Adapter nach Anspruch 4, dadurch gekennzeichnet, daß die Grundplatte (6) an beiden Schmalseiten neben den Gabelzinken (2, 3) mit je einem Auf­nahmeloch (19, 20) für einen anschraubbaren Hand­griff (21) versehen ist.7. Adapter according to claim 4, characterized in that the base plate (6) is provided on both narrow sides next to the fork tines (2, 3), each with a receiving hole (19, 20) for a screw-on handle (21). 8. Adapter nach einem der Ansprüche 1 bis 7, gekenn­zeichnet durch eine zugeordnete an einer Werkbank festspannbare Schraubzwinge (39), an deren Werk­bank-Auflageschenkel und Rückenschenkel je ein Norm-Einspannring (39a, 39b) zur wahlweisen Auf­nahme des Norm-Einsteckringes (5) des Adapters (1) vorgesehen ist, wobei die Achse der Einspannringe (39a, 39b) jeweils rechtwinklig zur Ebene des zu­gehörigen Auflageschenkels bzw. Rückenschenkels gerichtet sind.8. Adapter according to one of claims 1 to 7, characterized by an associated clamp that can be clamped to a workbench (39), on the workbench support leg and back leg each of a standard clamping ring (39a, 39b) for optionally receiving the standard insert ring (5th ) of the adapter (1) is provided, the axes of the clamping rings (39a, 39b) each being directed at right angles to the plane of the associated support leg or back leg. 9. Adapter nach Anspruch 1, gekennzeichnet durch eine im Austausch gegen die Schleifscheibe (37) an der Antriebswelle (43) des Winkelschleifers (26) an­schraubbare Spannzange (44) für Schaft-Werkzeuge (45).9. Adapter according to claim 1, characterized by a collet (44) for shaft tools (45) which can be screwed on in exchange for the grinding wheel (37) on the drive shaft (43) of the angle grinder (26).
EP88102061A 1987-04-03 1988-02-12 Adapter for clamping a portable angle grinder Withdrawn EP0284749A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3711325 1987-04-03
DE3711325 1987-04-03
DE19873715150 DE3715150A1 (en) 1987-04-03 1987-05-07 ADAPTER FOR CLAMPING A HAND-MADE ANGLE GRINDER
DE3715150 1987-05-07

Publications (2)

Publication Number Publication Date
EP0284749A2 true EP0284749A2 (en) 1988-10-05
EP0284749A3 EP0284749A3 (en) 1989-08-02

Family

ID=25854314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88102061A Withdrawn EP0284749A3 (en) 1987-04-03 1988-02-12 Adapter for clamping a portable angle grinder

Country Status (5)

Country Link
EP (1) EP0284749A3 (en)
DE (1) DE3715150A1 (en)
DK (1) DK177688A (en)
FI (1) FI881387A (en)
NO (1) NO881429L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1849558A1 (en) * 2006-04-24 2007-10-31 C. & E. FEIN GmbH Oscillation drive and adapter for attaching an oscillation drive

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944685U (en) * 1966-01-14 1966-08-18 Walter Kraumendahl Maschinen U GUIDE DEVICE FOR AN ELETROMOTORICALLY DRIVEN HAND GRINDING DEVICE.
DE2821132A1 (en) * 1978-05-13 1979-11-15 Robert Wolff CLAMPING STAND FOR HAND DRILLING MACHINES
DE2826971A1 (en) * 1978-06-20 1980-01-10 Hermann Endres Hand tool manoeuvring mechanism - has pivoting box-section mounting with holders adjustable to suit different machines
DE8031148U1 (en) * 1980-11-22 1981-07-02 Werner, Paul, 8945 Legau DEVICE FOR HOLDING AN ANGLE GRINDER
DE3241698A1 (en) * 1982-11-11 1984-05-17 Wolfgang 2091 Handorf Schmidt Angle grinding machine
DE3444795A1 (en) * 1984-10-26 1986-04-30 Cibieffe S.r.l., Florenz/Firenze Stand for receiving a portable angular cutting-off machine
DE8710169U1 (en) * 1987-04-03 1987-09-24 Wolff, Robert, 5446 Engeln, De

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1944685U (en) * 1966-01-14 1966-08-18 Walter Kraumendahl Maschinen U GUIDE DEVICE FOR AN ELETROMOTORICALLY DRIVEN HAND GRINDING DEVICE.
DE2821132A1 (en) * 1978-05-13 1979-11-15 Robert Wolff CLAMPING STAND FOR HAND DRILLING MACHINES
DE2826971A1 (en) * 1978-06-20 1980-01-10 Hermann Endres Hand tool manoeuvring mechanism - has pivoting box-section mounting with holders adjustable to suit different machines
DE8031148U1 (en) * 1980-11-22 1981-07-02 Werner, Paul, 8945 Legau DEVICE FOR HOLDING AN ANGLE GRINDER
DE3241698A1 (en) * 1982-11-11 1984-05-17 Wolfgang 2091 Handorf Schmidt Angle grinding machine
DE3444795A1 (en) * 1984-10-26 1986-04-30 Cibieffe S.r.l., Florenz/Firenze Stand for receiving a portable angular cutting-off machine
DE8710169U1 (en) * 1987-04-03 1987-09-24 Wolff, Robert, 5446 Engeln, De

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1849558A1 (en) * 2006-04-24 2007-10-31 C. & E. FEIN GmbH Oscillation drive and adapter for attaching an oscillation drive

Also Published As

Publication number Publication date
DK177688D0 (en) 1988-03-30
DK177688A (en) 1988-10-04
FI881387A (en) 1988-10-04
NO881429L (en) 1988-10-04
FI881387A0 (en) 1988-03-23
EP0284749A3 (en) 1989-08-02
NO881429D0 (en) 1988-03-30
DE3715150A1 (en) 1988-10-13

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