EP2703121B1 - Vorrichtung zum Bearbeiten eines Werkstücks - Google Patents

Vorrichtung zum Bearbeiten eines Werkstücks Download PDF

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Publication number
EP2703121B1
EP2703121B1 EP13176389.8A EP13176389A EP2703121B1 EP 2703121 B1 EP2703121 B1 EP 2703121B1 EP 13176389 A EP13176389 A EP 13176389A EP 2703121 B1 EP2703121 B1 EP 2703121B1
Authority
EP
European Patent Office
Prior art keywords
coupling part
toothing
coupling
workpiece processing
teeth
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.)
Active
Application number
EP13176389.8A
Other languages
English (en)
French (fr)
Other versions
EP2703121A1 (de
Inventor
Ruben Jan Moerbeek
Bas Schoutens
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.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
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 Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Priority to EP20201232.4A priority Critical patent/EP3791999A1/de
Publication of EP2703121A1 publication Critical patent/EP2703121A1/de
Application granted granted Critical
Publication of EP2703121B1 publication Critical patent/EP2703121B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
    • B24B23/03—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor the tool being driven in a combined movement
    • 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
    • B24B23/04—Portable grinding machines, e.g. hand-guided; Accessories therefor with oscillating grinding tools; Accessories therefor
    • 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
    • B24B45/00—Means for securing grinding wheels on rotary arbors
    • 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
    • B24B47/00—Drives or gearings; Equipment therefor
    • B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
    • B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power

Definitions

  • the invention relates to a sanding machine for processing a workpiece.
  • the invention relates to a sanding machine for processing a workpiece, comprising: - a housing; a drive arranged in the housing for driving a drive shaft relative to the housing; a first coupling part connected directly or indirectly to the drive shaft and provided with a toothing; a first part which is provided with a second coupling part connectable in engaging manner to the first coupling part, and wherein the second coupling part is provided for this purpose with a toothing co-acting with the toothing of the first coupling part.
  • Known devices for processing a workpiece to which the invention relates are for instance sanding machines and so-called multi-tools.
  • the coupling between a drive shaft driven by a drive and a workpiece processing part can be embodied as a pin-hole connection.
  • a technically obvious solution is to then arrange the pins on the machine side, which can however result in hazardous situations if the machine is driven without a workpiece processing part being coupled thereto.
  • the rotating pins can then cause serious injury.
  • US 2,725,770 A discloses a rotary fastener tool driving attachment for portable power tools according to the preamble of claim 1.
  • a clutch spring is provided which facilitates a disengagement of the clutch when the torque applied exceeds a certain threshold.
  • FR 2 758 287 A discloses a device that comprises a spring arrangement that functions as a torque limiter when fastening a nut or a bolt.
  • WO 2007/043871 A1 discloses a device for processing a workpiece, the device embodied as sanding machine.
  • An object of the present invention is to provide a device for processing a workpiece wherein the stated drawbacks do not occur, or at least do so to lesser extent.
  • a sanding machine for processing a workpiece according to the invention comprising:
  • the first coupling part and the second coupling part are both provided with a toothing. These toothings of the two coupling parts co-act with each other in order to realize a coupling between the two coupling parts.
  • a direct connection to the drive also comprises embodiments with an intermediate connection mounted between the drive motor and drive shaft, for instance via an eccentric.
  • the first coupling part can be connected directly as well as indirectly to the drive shaft.
  • the coupling part is connected directly to the drive shaft.
  • a connection is indirect when a conventional connection is for instance applied between the drive shaft and a base plate, wherein a first coupling part provided with a toothing is arranged on the base plate.
  • the workpiece processing part is coupled to apart driven by the drive, and not directly to the drive itself.
  • a crown gear also referred to as crown gear wheel, or simply crown wheel, has a disc-like surface provided with a toothing.
  • the tooth shape is preferably helical, whereby the toothing is narrower on the inner side than on the outer side.
  • crown gears are generally used to generate a pulsating movement, for instance in a hammer drill, according to the invention crown gears are clamped against each other and applied to transmit a rotating movement between parallel shafts. A self-centering and clearance-free coupling is in this way provided.
  • Such a self-centering, clearance-free coupling can also be obtained with a crown gear consisting of a surface provided with a toothing, wherein the toothing is not helical but wherein teeth lie at an angle. Self-centering is provided by the angle between the teeth.
  • angles between the teeth can vary in order to impose a specific coupling position. If on the other hand the teeth are distributed at equal angles, multiple coupling positions are then possible.
  • the clamping means ensure that the crown gears of both coupling parts are clamped against each other, whereby an engaging contact is brought about between the co-acting crown gears.
  • a crown gear - in contrast with the pin side of a pin-hole connection - further has a gradually upward and downward sloping form.
  • the risk of a user being injured by an unguarded rotating crown gear is hereby many times smaller than the risk of a pin connection resulting in injury.
  • the sanding plate is provided with a third coupling part with a toothing, and an attachment workpiece processing part is connectable in engaging manner to the sanding plate, wherein the workpiece processing part is provided for this purpose with a fourth coupling part with a toothing which co-acts with the toothing of the third coupling part.
  • the first workpiece processing part which is itself provided with a second coupling part with which it is connectable in engaging manner to a first coupling part connected directly and/or indirectly to the drive shaft, is provided according to the invention with a third coupling part to which an attachment workpiece processing part is connectable.
  • a third coupling part to which an attachment workpiece processing part is connectable.
  • the toothing of the third coupling part and the toothing of the fourth coupling part are mutually engageable crown gears
  • the sanding machine further comprises second clamping means configured to clamp the crown gears of the third and the fourth coupling part in engaging contact against each other.
  • the coupling according to the invention wherein co-acting toothings are applied between two coupling parts, can thus be applied on the one hand for connection between a first coupling part, which is connected directly or indirectly to a drive shaft, and a workpiece processing part.
  • a coupling can on the other hand be applied between a workpiece processing part and a further attachment workpiece processing part.
  • connection according to the invention for the coupling between the drive shaft and the first workpiece processing part
  • a conventional connection being applied for this purpose.
  • the third and fourth coupling part described in the application in that case function as first and second coupling part.
  • the second clamping means then function as first clamping means.
  • the clamping means configured to clamp the crown gears in engaging manner against each other are a bayonet connection, screw connection, snap connection or swivel connection.
  • the number of teeth of the toothing of the first coupling part connected directly and/or indirectly to the drive shaft and the number of teeth of the toothing of the third coupling part of the first workpiece processing part differ such that they have one or more common whole numbers as divisor and one or more common differing whole numbers as divisor.
  • a partial incompatibility is intentionally created in that there are one or more common whole numbers (or integers) as divisor and one or more common differing whole numbers (or integers) as divisor.
  • the first coupling part has 16 teeth and the third coupling part arranged on the workpiece processing part is provided with 12 teeth, the following situation results:
  • the sanding machine further comprises an adapter part which is arrangeable between two coupling parts and provided on both sides with a crown gear.
  • an adapter part can for instance function as spacer.
  • the teeth of the crown gear on both sides of the adapter part are offset relative to each other.
  • the adapter part in this embodiment also provides the option of coupling (attachment) workpiece processing parts in a greater number of orientations.
  • the crown gears on both sides of the adapter part comprise a differing number of teeth.
  • a whole or partial incompatibility can hereby be brought about or eliminated.
  • the sanding machine comprises at least two exchangeable attachment workpiece processing parts, wherein at least one is embodied in a first embodiment and at least one is embodied in a second embodiment, wherein the orientation in which the crown gear of the fourth coupling part is arranged on the attachment workpiece processing part in the first embodiment differs from the orientation in which the crown gear of the fourth coupling part is arranged on the attachment workpiece processing part in the second embodiment. Because the orientation of the crown gears differs, the different embodiments of the attachment workpiece processing parts are each suitable for their own selection of orientations.
  • the toothing of the first coupling part and the toothing of the second coupling part together forma toothed shaft connection.
  • a toothed shaft connection is suitable for applications in which an at least partial axial displacement of the coupling is desired. Because clearance is required in order to bring about the connection of a toothed shaft connection, such connections are less suitable for use on a sanding machine with oscillating movements.
  • the toothed shaft connection comprises a tapering form such that there is an end position wherein the toothings fit substantially close together.
  • the toothed shaft connection in this way has a form-fitting end position which makes this connection suitable for oscillating applications.
  • the sanding machine 1 shown in figure 1 comprises a housing 2 and a drive (not shown) therein for driving a drive shaft 4 relative to this housing 2.
  • a first coupling part 6 provided with a toothing 8 is connected directly to drive shaft 4.
  • Housing 2 of sanding machine 1 further comprises a handgrip 44 and a suction conduit 42.
  • first workpiece processing part 10 of a first type 10a which is a so-called multi-foot provided with suction openings 40 through which abraded material can be suctioned away and extracted from sanding machine 1 via suction conduit 42.
  • the first workpiece processing part 10 of the first type 10a further comprises an opening 11 through which this workpiece processing part 10a is can be engaged with a bolt 16 in a recess 9 provided with screw thread in the first coupling part 6.
  • connecting legs 36 Arranged on housing 2 of sanding machine 1 are connecting legs 36 which can be received in receiving spaces 38 of the first workpiece processing part 10, 10a of the first type shown in figure 1 . These receiving spaces 38 for connecting legs 36 are shown in the partly cut-away perspective top view of figure 2 .
  • a second coupling part 12 with a toothing 14 is arranged in first workpiece processing part 10.
  • This second coupling part 12 is provided with the opening 11 through which bolt 16 can connect to the recess 9 provided with screw thread in the first coupling part 6 mounted on drive shaft 4 of sanding machine 1.
  • FIGS 3 and 4 show sanding machine 1 with a first workpiece processing part 10 of a second type 10b, which is a rotating sanding plate.
  • a rotating sanding plate is also referred to as a random orbit sander (ROS).
  • ROS random orbit sander
  • a second coupling part 12 with a toothing 14 is also arranged in this first workpiece processing part 10 of the second type 10b.
  • Sanding machine 1 shown in figures 5-7 comprises a first workpiece processing part 10 of a third type 10c which resembles the multi-foot shown in figure 1 .
  • the first workpiece processing part 10 of the third type 10c comprises a third coupling part 18 with a crown gear 20.
  • second clamping means 28 in the form of a shaft provided with screw thread and with a rotary knob, an attachment workpiece processing part 22 can be coupled to the first workpiece processing part 10 of the third type 10c.
  • the attachment workpiece processing part 22 of the first type 22a is shown in two variants 22a-1 and 22a-2. Both these variants 22a-1 and 22a-2 differ from each other in that the crown gear 26 of the fourth coupling part 24 arranged thereon has a slightly different orientation. Both variants 22a-1 and 22a-2 of the attachment workpiece processing part 22 of the first type 22a can hereby both be coupled in different orientations to the third coupling part 18.
  • a possible orientation is shown in figure 7 , wherein it is also noted that the first workpiece processing part 10 of the third type 10c is arranged at an angle of 90° on housing 1.
  • the connecting legs 36 are arranged rotation-symmetrically such that they once again fall into a receiving space 38 for the connecting legs.
  • FIG. 8 A further embodiment of sanding machine 1 is shown in figures 8 and 9 , wherein a first workpiece processing part 10 of a fourth type 10d is applied.
  • This first workpiece processing part 10 of the fourth type 10d is likewise provided with a third coupling part 18 with a crown gear 20.
  • attachment workpiece processing part 22 of a second type 22b which is once again provided with a fourth coupling part 24 with a crown gear 26.
  • An adapter part 30 can be provided in order to create some distance between two coupling parts, for instance third coupling part 18 and fourth coupling part 24.
  • this adapter part 30 By embodying this adapter part 30 as a first type 30a with offset crown gears the adapter part provides the option of coupling the attachment workpiece processing part in a greater number of orientations than the initial number of teeth already makes possible ( figure 10 ).
  • adapter part 30 is embodied as a second type 30b with a different number of teeth ( figure 11 ).
  • the tooth shape is preferably adapted in order to retain the greatest possible contact surface between the tooth flanks.
  • the tooth shape of a tooth of any of these sixteen teeth can then be taken as basis.
  • the same angle of inclination for the tooth flanks is chosen as for the tooth shape of the crown gear with the sixteen teeth which serves as basis.
  • the twelve teeth are distributed proportionally over the 360° periphery, wherein the tooth top is formed proportionally as a flattened tooth shape.
  • the crown gear with twelve teeth hereby has a tooth shape which is flattened to some extent.
  • the basis for the partial compatibility and partial incompatibility between different coupling parts is that the number of teeth of these different coupling parts differs such that they have one or more common whole numbers as divisor and one or more common differing whole numbers as divisor.
  • the incompatible coupling shown in figure 13 prevents the possibility of an undesired coupling being made. It is thus impossible for instance to couple a finger- like attachment workpiece processing part of the first type 22a to first coupling part 6 of sanding machine 1. This coupling would cause the attachment workpiece processing part 22a to rotate in hazardous manner relative to housing 2 of sanding machine 1.
  • a desired compatibility and incompatibility can be intentionally realized according to the invention between on the one hand the first coupling part 6 connected to the drive shaft and the third coupling part 18 arranged on a first workpiece processing part 10 and on the other hand, optionally connectable to coupling parts 6, 18, a second coupling part 12 of a first workpiece processing part 10 and fourth coupling part 24 of an attachment workpiece processing part 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Gear Processing (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Jigs For Machine Tools (AREA)

Claims (7)

  1. Schleifmaschine (1) zur Bearbeitung eines Werkstücks, bestehend aus
    - einem Gehäuse (2) ;
    - einem Antrieb, der im Gehäuse angeordnet ist, um eine Antriebswelle (4) relativ zum Gehäuse anzutreiben;
    - einem ersten direkt oder indirekt mit der Antriebswelle verbundenen und mit einer Verzahnung (8) versehenen Kupplungsteil (6);
    - einem ersten Teil (10), das mit einem zweiten Kupplungsteil (12) versehen ist, das in eingreifender Weise mit dem ersten Kupplungsteil (6) verbunden werden kann, und wobei das zweite Kupplungsteil (12) zu diesem Zweck mit einer Verzahnung (14) versehen ist, die mit der Verzahnung (8) des ersten Kupplungsteils (6) zusammenwirkt;
    dadurch gekennzeichnet, dass
    - die Verzahnung (8) des ersten Kupplungsteils (6) und die Verzahnung (14) des zweiten Kupplungsteils (12) gegenseitig eingreifende Kronenräder sind;
    - die Kronenräder (8, 14) miteinander verspannt und angewendet werden, um eine Drehbewegung zwischen parallelen Wellen zu übertragen;
    - der erste Teil (10) ein Schleiffuß (10) ist;
    - die Schleifmaschine ferner erste Spannmittel (16) aufweist, die dafür ausgelegt sind, die Kronenräder (8, 14) des ersten und des zweiten Kupplungsteils (6, 12) in eingreifendem Kontakt gegeneinander zu verspannen und so eine selbstzentrierende spielfreie Kupplung zu bilden;
    - der Schleiffuß (10) mit einem dritten Kupplungsteil (18) mit einer Verzahnung (20) versehen ist;
    - ein Anbau-Werkstückbearbeitungsteil (22) mit dem Schleiffuß (10) eingreifend verbunden werden kann und zu diesem Zweck mit einem vierten Kupplungsteil (24) mit einer Verzahnung (26) versehen ist, die mit der Verzahnung (20) des dritten Kupplungsteils (18) zusammenwirkt;
    - die Verzahnung (20) des dritten Kupplungsteils (18) und die Verzahnung (26) des vierten Kupplungsteils (24) gegenseitig eingreifende Kronenräder sind;
    - zweite Spannmittel (28) dafür ausgelegt sind, die Kronenräder (20, 26) des dritten und des vierten Kupplungsteils (18, 24) in eingreifendem Kontakt miteinander zu verspannen;
    - die Zahl der Zähne der Verzahnung (8) des ersten Kupplungsteils (6), das direkt und/oder indirekt mit der Antriebswelle verbunden ist, und die Zahl der Zähne der Verzahnung des dritten Kupplungsteils (18) des ersten Werkstückbearbeitungsteils (10) sich derart unterscheiden, dass sie eine oder mehrere gemeinsame ganze Zahlen als Teiler und eine oder mehrere gemeinsame unterschiedliche ganze Zahlen als Teiler haben;
    - die Antriebswelle durch den Antrieb durch eine Winkelverschiebung relativ zum Gehäuse (2) frei drehbar ist; und
    - die Schleifmaschine mindestens zwei austauschbare Vorsatzwerkstück-Bearbeitungsteile (22) in einer ersten Ausführungsform (22a-1) und in einer zweiten Ausführungsform (22a-2) aufweist, wobei sich die Ausrichtung, in der das Kronenrad (20) des vierten Kupplungsteils (24) auf dem Vorsatzwerkstück-Bearbeitungsteil in der ersten Ausführungsform (22a-1) angeordnet ist, von der Ausrichtung unterscheidet, in der das Kronenrad (20) des vierten Kupplungsteils (24) auf dem Vorsatzwerkstück-Bearbeitungsteil in der zweiten Ausführungsform (22a-2) angeordnet ist.
  2. Schleifmaschine nach Anspruch 1, bei der die Spannmittel (16, 28), die so ausgebildet sind, dass sie die Kronenräder (8, 14, 20, 26) kraftschlüssig gegeneinander verspannen, eine Bajonett-, Schraub-, Schnapp- oder Schwenkverbindung aufweisen.
  3. Schleifmaschine nach einem der Ansprüche, ferner mit einem Adapterteil (30, 30a, 30b) versehen, das dafür ausgelegt ist, zwischen zwei Kupplungsteilen angeordnet und auf beiden Seiten mit einem Kronenrad versehen zu werden.
  4. Schleifmaschine nach Anspruch 3, bei der die Zähne des Kronenrades auf beiden Seiten des Adapterteils (30a) relativ zueinander versetzt angeordnet sind.
  5. Schleifmaschine nach Anspruch 3 oder 4, bei der die Kronenräder auf beiden Seiten des Adapterteils (30b) eine unterschiedliche Anzahl von Zähnen aufweisen.
  6. Schleifmaschine nach Anspruch 1, wobei die Verzahnung (8) des ersten Kupplungsteils (6) und die Verzahnung (14) des zweiten Kupplungsteils (12) zusammen eine Zahnwellenverbindung bilden.
  7. Schleifmaschine nach Anspruch 6, bei der die Zahnwellenverbindung eine sich verjüngende Form aufweist, sodass eine Endposition vorhanden ist, in der die Verzahnungen (8, 14) im Wesentlichen dicht aneinander passen.
EP13176389.8A 2012-07-13 2013-07-12 Vorrichtung zum Bearbeiten eines Werkstücks Active EP2703121B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20201232.4A EP3791999A1 (de) 2012-07-13 2013-07-12 Vorrichtung zur bearbeitung eines werkstücks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1039725A NL1039725C2 (nl) 2012-07-13 2012-07-13 Inrichting voor het bewerken van een werkstuk.

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP20201232.4A Division EP3791999A1 (de) 2012-07-13 2013-07-12 Vorrichtung zur bearbeitung eines werkstücks
EP20201232.4A Division-Into EP3791999A1 (de) 2012-07-13 2013-07-12 Vorrichtung zur bearbeitung eines werkstücks

Publications (2)

Publication Number Publication Date
EP2703121A1 EP2703121A1 (de) 2014-03-05
EP2703121B1 true EP2703121B1 (de) 2021-01-20

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EP20201232.4A Pending EP3791999A1 (de) 2012-07-13 2013-07-12 Vorrichtung zur bearbeitung eines werkstücks

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EP (2) EP2703121B1 (de)
NL (1) NL1039725C2 (de)
RU (1) RU2636546C2 (de)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306974A1 (de) * 2003-02-19 2004-09-09 Kompernaß Handelsgesellschaft mbH Handschleifgerät
DE102008015955A1 (de) * 2008-03-20 2009-08-13 Metabowerke Gmbh Handwerkzeuggerät

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2727770A (en) * 1951-09-26 1955-12-20 Harry C Davis Jet sander for vehicles
US2725770A (en) * 1953-11-10 1955-12-06 Black & Decker Mfg Co Rotary fastener tool driving attachment for portable power tools
DE3121694A1 (de) * 1981-06-01 1983-02-17 IEG - Industrie-Engineering GmbH, 7410 Reutlingen Kupplungen mit parallelverzahnten kupplungsflaechen
FR2758287B1 (fr) * 1997-02-13 1999-04-02 Jean Vautrin Douille de serrage a limiteur de couple
DE10055246A1 (de) * 2000-11-08 2002-05-16 Bosch Gmbh Robert Exzenterschleifer mit einer Vorrichtung zur Drehzahlbegrenzung des Schleiftellers
ITMI20021352A1 (it) * 2002-06-19 2003-12-19 Asterika Ltd Dispositivo di connessione tra organi di una macchina
CA2673618C (en) * 2003-03-03 2012-10-02 Credo Technology Corporation Angle attachment for power tool
GB2414948B (en) * 2003-06-26 2006-06-07 Bosch Gmbh Robert Motor driven hand grinding tool
DE202004011614U1 (de) * 2004-07-23 2004-11-11 Kress-Elektrik Gmbh & Co. Elektromotorenfabrik Elektrowerkzeug
NL1030176C2 (nl) * 2005-10-12 2007-04-17 Bosch Gmbh Robert Handgereedschap met verbeterde aandrijving.
EP2292378A1 (de) * 2009-09-02 2011-03-09 ERGOBIONIK GmbH Motorisch angetriebenes Handwerkzeug zum Schleifen
DE102009053614B4 (de) * 2009-11-17 2012-02-09 Metabowerke Gmbh Motorisch angetriebenes Winkelschleifgerät

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306974A1 (de) * 2003-02-19 2004-09-09 Kompernaß Handelsgesellschaft mbH Handschleifgerät
DE102008015955A1 (de) * 2008-03-20 2009-08-13 Metabowerke Gmbh Handwerkzeuggerät

Also Published As

Publication number Publication date
NL1039725C2 (nl) 2014-01-16
EP2703121A1 (de) 2014-03-05
RU2013132464A (ru) 2015-01-20
EP3791999A1 (de) 2021-03-17
RU2636546C2 (ru) 2017-11-23

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