EP0232761A2 - Tool for the treatment of surfaces or the like - Google Patents

Tool for the treatment of surfaces or the like Download PDF

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Publication number
EP0232761A2
EP0232761A2 EP87100838A EP87100838A EP0232761A2 EP 0232761 A2 EP0232761 A2 EP 0232761A2 EP 87100838 A EP87100838 A EP 87100838A EP 87100838 A EP87100838 A EP 87100838A EP 0232761 A2 EP0232761 A2 EP 0232761A2
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EP
European Patent Office
Prior art keywords
dust
drive unit
motor
driven
tool
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Granted
Application number
EP87100838A
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German (de)
French (fr)
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EP0232761B1 (en
EP0232761A3 (en
Inventor
Franz Lex
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Individual
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Individual
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Publication of EP0232761A3 publication Critical patent/EP0232761A3/en
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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
    • B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
    • B24B55/06—Dust extraction equipment on grinding or polishing machines
    • B24B55/10—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided
    • B24B55/105—Dust extraction equipment on grinding or polishing machines specially designed for portable grinding machines, e.g. hand-guided with oscillating tools
    • 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
    • B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents

Definitions

  • the invention relates to a device for treating, in particular for cleaning, polishing and sanding surfaces or the like.
  • a mass that is moved in an unbalanced manner by motor, which mass consists at least of an electric motor with an eccentric swing weight that can be driven by the motor shaft and one on the side of the swing weight
  • a tool attached to the motor housing via a tool carrier, and which forms a drive unit which is held on the device housing so as to be able to oscillate, wherein, if necessary, a dust-extracting fan rotor which can be driven by the motor shaft is also arranged on the drive unit for a dust-collecting device which can be used on the device.
  • a device of the type mentioned is known from AT-PS 377 173.
  • the eccentric swing weight is attached directly to the motor shaft.
  • this leads to an excessive load on the motor bearings and thus to a reduced service life of the motor.
  • one is forced to have a motor manufactured with particularly strong bearings or, if conventional motors are used, to accept a reduced effect of the device by arranging a lower swing weight.
  • the device can also be designed to extract dust, and in addition to the disadvantages mentioned, the device has to be redesigned.
  • the object of the invention is to eliminate these disadvantages and to expand the scope of such a device.
  • FIG. 1 shows in cross section an inventive device for treatment, for. B. for cleaning surfaces or the like.
  • Figure 2 in cross section the device according to Figure 1 with an additional dust extraction device, for cleaning od.
  • Figure 3 in cross section a variant of the device according to Figure 1 for cleaning or the like or alternatively vacuuming
  • FIG. 4 in cross section a dust collecting device for FIG. 3 that can be used for the purpose of dust extraction.
  • the device shown in FIGS. 1, 2 and 3 essentially consists of the housing 2 and a drive unit 3 for the tool 1, which is mounted on the housing 2 such that it can vibrate, and is motor-unbalanced.
  • the housing 2 is perpendicular to the cutting plane in three parts 10, 11, 12 divided, which parts are connected by the screws 9 - represented by lines of symmetry.
  • the drive unit 3 consists of the electric motor 5, the shaft 13, which projects from the motor housing, drives the eccentric flywheel 4 and a tool holder 8 fastened to the side of the flywheel 4 on the motor housing 5 by the bracket 7 and the screws 6 Cup-shaped tool carrier 8, the tool 1 designed as a cleaning brush can be used by means of the snap coupling 22.
  • the drive unit 3 is held on the housing 2 by three oscillating elements 15 arranged symmetrically between the housing end 12 and the tool carrier 8 and a self-aligning bearing 14 arranged on the housing part 10 in the axial direction of the motor 1 and will thereby perform a circular oscillating movement which transmits the tool 1 becomes.
  • a self-aligning bearing 14 arranged on the housing part 10 in the axial direction of the motor 1 and will thereby perform a circular oscillating movement which transmits the tool 1 becomes.
  • electrical devices on the housing 2 such as the on / off switch 17 and the charging socket 18 for a plurality of rechargeable battery batteries 16 arranged in the device.
  • FIGS. 2 and 3 show, if necessary, the drive unit 3, etc.
  • a dust-extracting fan rotor 31 can also be additionally arranged for a dust-collecting device 40 that can be used on the device.
  • the eccentric swing weight 4 of the drive unit 3 and, if applicable, 31 on the tool carrier 8, etc. is rotatably mounted on the axles 35 and 24 and can be driven by the motor shaft 13 via the clutch 29 or the reduction gear 21. ( Figure 3 or 1 and 2).
  • the swing weight 4 is distributed to two identical countershafts 20, 20 ⁇ of the reduction gear 21. These are in one plane and symmetrical to one another on the tool carrier 8, etc. on the axles 24 together with the flywheel parts 4 rotatably and are driven by the pinion 19 attached to the motor shaft 13.
  • FIG. 2 additionally shows the device according to FIG. 1 with the dust extraction device 31, 40, with the aid of which dust extraction can also be carried out at the same time.
  • the annular extension 23 for the fan rotor 31 is provided on the tool carrier 8.
  • the fan rotor 31 located below the reduction gear 21 is connected by means of the screw 42 to the toothed pinion 19 fastened to the motor shaft 13.
  • the tool 1, which is designed as a cleaning brush, can be used on the annular extension 23 by means of the snap coupling 22.
  • the cleaning brush 1 has at least one throughflow opening 41 leading to the suction opening 32 of the blower rotor 31, which through a radial opening on the tool carrier 8, etc.
  • the outlet opening 44 arranged on the annular extension 23 is connected to the dust collecting device 40 arranged on the housing 2 so that it can flow through.
  • the flexible flow connection 45 is advantageously arranged between them.
  • the flywheel weight 4 can be driven via the clutch 29 in FIG.
  • the coupling 29 is designed to be detachable in accordance with a further development of the invention, the detachable coupling part 29 ⁇ with the eccentric swing weight 4 being rotatably mounted on the axis 35 of a base plate 28 which can be removed on the tool carrier 8.
  • Tool carrier 8 and base plate 28 are formed with the threaded or bayonet lock 27 for this purpose. It is not only possible to attach swing weights 4 of different sizes for a change in the effectiveness of the device, but also to make the conversion of the device to vacuuming much easier.
  • a dust-extracting fan rotor 31 is additionally arranged on the motor shaft 13 in a manner known per se, the hub 30 of which, in a further development according to the invention, is also designed as the further part of the releasable clutch 29.
  • a cover 33 which closes the suction opening 32 of the blower rotor 31 and, according to another further development of the invention, is rotatably mounted together with the flywheel weight 4 on the axis 35 of the removable base plate 28.
  • the cover 33 is made of an elastic material, e.g. B. made of foam and can be glued to the swing weight 4.
  • FIG. 4 shows the dust collecting device 40 suitable for this.
  • This consists essentially of the dust collecting container 37 with handle 38 and the dust filter 39 which can be inserted into the dust collecting container 37.
  • the dust collecting container 37 is designed with a closure part 27 which is identical to the base plate 28.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Cleaning In General (AREA)
  • Grinding-Machine Dressing And Accessory Apparatuses (AREA)

Abstract

In this appliance, a mass motor-driven in an unbalanced manner is provided in order to drive a tool (1). The mass consists of at least one electric motor (5), with an eccentric centrifugal weight (4) which can be driven by the motor shaft (13), and of a tool carrier (8) fastened on the side of the centrifugal weight (4) to the motor housing (5) and forms a drive unit (3) which is held in a vibratory manner on the housing (2) of the appliance. For the purpose of relieving the load on the motor bearings, the centrifugal weight (4) of the drive unit (3) is rotatably mounted independently on the tool carrier (8) and is driven by the motor shaft (13) via a coupling (29), a reduction gear unit (21) or the like. Here, the centrifugal weight (4) can also be distributed over several identical counter gears (20, 20') of a reduction gear unit (21) so that even these bearings only need to absorb proportional loads. If need be, a dust-extracting fan impeller (31) for a dust-catching device (40) which can be used on the appliance can also be arranged here on the drive unit (3), and in fact so as to be directly driven by the motor shaft (13). Furthermore, the appliance can be designed for this purpose in such a way that dust extraction can be thus carried out either alternatively to or in addition to the surface treatment. <IMAGE>

Description

Die Erfindung betrifft ein Gerät zum Behandeln, insbesondere zum Reinigen, Polieren und Abschleifen von Oberflächen od. dgl. mittels einer motorisch unwuchtig bewegten Masse, welche zumindest aus einem Elektromotor mit einem von der Motorwelle antreibbaren exzentrischen Schwunggewicht und einem an der Seite des Schwunggewichtes, gegebenenfalls über einen Werkzeugträger am Motorgehäuse befestigten Werkzeug besteht, und welche eine Antriebseinheit bildet, die am Gerätegehäuse schwingbar gehalten ist, wobei gegebenenfalls an der Antriebseinheit zusätzlich ein von der Motorwelle antreibbarer Staub absaugender Gebläseläufer für eine am Gerät einsetzbare Staubfangvorrichtung angeordnet ist.The invention relates to a device for treating, in particular for cleaning, polishing and sanding surfaces or the like. By means of a mass that is moved in an unbalanced manner by motor, which mass consists at least of an electric motor with an eccentric swing weight that can be driven by the motor shaft and one on the side of the swing weight There is a tool attached to the motor housing via a tool carrier, and which forms a drive unit which is held on the device housing so as to be able to oscillate, wherein, if necessary, a dust-extracting fan rotor which can be driven by the motor shaft is also arranged on the drive unit for a dust-collecting device which can be used on the device.

Ein Gerät der genannten Art ist durch die AT-PS 377 173 bekannt. Bei diesem ist das exzentrische Schwunggewicht unmittelbar an der Motorwelle befestigt. Dies führt aber zu einer übermäßig starken Beanspruchung der Motorlager und somit auch zu einer verminderten Lebensdauer des Motors. Um dies zu vermeiden, ist man gezwungen, einen Motor mit besonders starken Lagern herstellen zu lassen oder bei Verwendung handelsüblicher Motoren eine verminderte Wirkung des Gerätes durch Anordnung eines geringeren Schwunggewichtes in Kauf zu nehmen. Das Gerät kann bekannterweise auch zum Staub absaugen ausgebildet werden, wobei zu den ge­nannten Nachteilen eine umständliche Umbildung des Gerätes hinzukommt.A device of the type mentioned is known from AT-PS 377 173. The eccentric swing weight is attached directly to the motor shaft. However, this leads to an excessive load on the motor bearings and thus to a reduced service life of the motor. In order to avoid this, one is forced to have a motor manufactured with particularly strong bearings or, if conventional motors are used, to accept a reduced effect of the device by arranging a lower swing weight. As is known, the device can also be designed to extract dust, and in addition to the disadvantages mentioned, the device has to be redesigned.

Es ist Aufgabe der Erfindung, diese Nachteile zu beseitigen und den Anwendungs­bereich eines solchen Gerätes zu erweitern.The object of the invention is to eliminate these disadvantages and to expand the scope of such a device.

Gelöst wird diese Aufgabe grundsätzlich durch die im kennzeichnenden Teil des Anspruches 1 angeführten Merkmale.This object is basically achieved by the features stated in the characterizing part of claim 1.

Durch diese Merkmale werden die Motorlager von der Zentrifugalkraft des ex­zentrischen Schwunggewichtes vollkommen entlastet; sie werden nunmehr von eigenen Lagern aufgenommen, die im Falle einer Abnützung leicht ausgetauscht werden können. Darüberhinaus werden damit aber auch eine Reihe weiterer er­findungsgemäßer Vorteile erzielt. So kann nunmehr aufgrund des u. U. dabei er­forderlichen Untersetzungsgetriebes ein hochtouriger Motor verwendet werden, durch dessen geringere Abmaße und geringeres Gewicht auch die Abmaße und das Ge­wicht der Antriebseinheit und somit des Gerätes entsprechend vermindert werden. Dabei ist es auch möglich, das Schwunggewicht auf mehrere Vorgelegerädern des Untersetzungsgetriebes zu verteilen, sodaß die durch das Schwunggewicht hervor­gerufenen Belastungen auch auf mehreren Lagern verteilt werden.These features completely relieve the motor bearings of the centrifugal force of the eccentric swing weight; they are now housed in our own bearings, which can be easily replaced in the event of wear. In addition, however, a number of further advantages according to the invention are also achieved. So now due to the u. U. required reduction gear, a high-speed motor can be used, due to its smaller dimensions and lower weight, the dimensions and the weight of the drive unit and thus of the device can be reduced accordingly. It is also possible to distribute the flywheel weight over several countershaft gears of the reduction gear, so that the loads caused by the flywheel weight are also distributed over several bearings.

Es ist dadurch ferner möglich, das Gerät so weiterzubliden, daß es eine Ober­flächenbehandlung bei gleichzeitiger Staubabsaugung durchführen kann. Dabei werden ohne zusätzliche Maßnahmen unterschiedliche Antriebsgeschwindigkeiten für Schwunggewicht und Gebläseläufer erzielt und damit ideale Verhältnisse für beide Anwendungsbereiche geschaffen. Aber auch bei der bekannten, alter­nativ zum Staub absaugen geeigneten Ausbildung eines solchen Gerätes werden darüber hinaus weitere Vorteile erzielt, da dadurch auch die Umbildung des Ge­rätes wesentlich erleichtert wird.This also makes it possible to continue blinding the device so that it can carry out a surface treatment with simultaneous dust extraction. Different drive speeds for swing weight and fan rotor are achieved without additional measures, thus creating ideal conditions for both areas of application. But also in the known, alternatively suitable for vacuuming such a device, further advantages are achieved, since this also makes the remodeling of the device much easier.

Die Erfindung wird anhand von drei bevorzugten Ausführungsbeispielen zeichner­isch näher dargestellt:
Es zeigen Figur 1 im Querschnitt ein erfindungsgemäßes Gerät zum Behandeln, z. B. zum Reinigen von Oberflächen od. dgl., Figur 2 im Querschnitt das Gerät nach Figur 1 mit einer zusätzlichen Staubabsaugeinrichtung, zum Reinigen od. dgl bei gleichzeitiger Staubabsaugung, Figur 3 im Querschnitt eine Variante des Ge­rätes nach Figur 1 zum Reinigen od. dgl. oder alternativ zum Staub absaugen und Figur 4 im Querschnitt eine zum Zwecke der Staubabsaugung einsetzbare Staubfang­vorrichtung für Figur 3.The invention is illustrated in more detail using three preferred exemplary embodiments:
1 shows in cross section an inventive device for treatment, for. B. for cleaning surfaces or the like., Figure 2 in cross section the device according to Figure 1 with an additional dust extraction device, for cleaning od. Like with simultaneous dust extraction, Figure 3 in cross section a variant of the device according to Figure 1 for cleaning or the like or alternatively vacuuming and FIG. 4 in cross section a dust collecting device for FIG. 3 that can be used for the purpose of dust extraction.

Das in den Figuren 1, 2 und 3 dargestellte Gerät besteht im wesentlichen aus dem Gehäuse 2 und einer am Gehäuse 2 schwingbar gelagerten, motorisch unwuchtig be­wegten Antriebseinheit 3 für das Werkzeug 1. Das Gehäuse 2 ist senkrecht zur Schnittebene in drei Teilen 10 , 11,12 geteilt, welche Teile durch die Schrauben 9 - dargestellt durch Symmetrielinien - miteinander verbunden sind.
Im weiteren besteht die Antriebseinheit 3 aus dem Elektromotor 5, dessen aus dem Motorgehäuse hervorragende Welle 13 das exzentrische Schwunggewicht 4 an­treibt und einem an der Seite des Schwunggewichtes 4 am Motorgehäuse 5 durch den Bügel 7 und den Schrauben 6 befestigten Werkzeugträger 8. An der Boden­platte des napfförmig ausgebilden Werkzeugträgers 8 ist das als Reinigungsbürste ausgebildete Werkzeug 1 mittels der Schnappkupplung 22 einsetzbar.
Die Antriebseinheit 3 ist durch drei zwischen dem Gehäuseende 12 und dem Werk­zeugträger 8 symmetrisch angeordneten Schwingelementen 15 und einem in Achs­richtung des Motors 1 am Gehäuseteil 10 angeordneten Pendellager 14 schwingbar am Gehäuse 2 gehalten und wird dadurch eine kreisförmig pendelnde Bewegung aus­führen, die dem Werkzeug 1 übertragen wird. Es ist jedoch auch eine andere Art der Schwinglagerung möglich. Am Gehäuse 2 befinden sich weiters elektrische Einrichungen, wie der Ein- und Ausschalter 17 und die Ladebuchse 18 für mehrere im Gerät angeordnete Akku-Batterien 16.
Wie Figur 2 und 3 zeigen, kann erforderlichenfalls an der Antriebseinheit 3, uzw. an der Motorwelle 13 auch zusätzlich ein Staub absaugender Gebläseläufer 31 für eine am Gerät einsetzbare Staubfangvorrichtung 40 angeordnet sein.The device shown in FIGS. 1, 2 and 3 essentially consists of the housing 2 and a drive unit 3 for the tool 1, which is mounted on the housing 2 such that it can vibrate, and is motor-unbalanced. The housing 2 is perpendicular to the cutting plane in three parts 10, 11, 12 divided, which parts are connected by the screws 9 - represented by lines of symmetry.
Furthermore, the drive unit 3 consists of the electric motor 5, the shaft 13, which projects from the motor housing, drives the eccentric flywheel 4 and a tool holder 8 fastened to the side of the flywheel 4 on the motor housing 5 by the bracket 7 and the screws 6 Cup-shaped tool carrier 8, the tool 1 designed as a cleaning brush can be used by means of the snap coupling 22.
The drive unit 3 is held on the housing 2 by three oscillating elements 15 arranged symmetrically between the housing end 12 and the tool carrier 8 and a self-aligning bearing 14 arranged on the housing part 10 in the axial direction of the motor 1 and will thereby perform a circular oscillating movement which transmits the tool 1 becomes. However, another type of vibratory mounting is also possible. There are also electrical devices on the housing 2, such as the on / off switch 17 and the charging socket 18 for a plurality of rechargeable battery batteries 16 arranged in the device.
As FIGS. 2 and 3 show, if necessary, the drive unit 3, etc. On the motor shaft 13, a dust-extracting fan rotor 31 can also be additionally arranged for a dust-collecting device 40 that can be used on the device.

Erfindungsgemäß ist das exzentrische Schwunggewicht 4 der Antriebseinheit 3 und gegebenenfalls 31 für sich am Werkzeugträger 8, uzw. an den Achsen 35 bzw. 24 drehbar gelagert und ist von der Motorwelle 13 über die Kupplung 29 bzw. das Untersetzungsgetriebe 21 antreibbar. (Figur 3 bzw. 1 und 2).According to the invention, the eccentric swing weight 4 of the drive unit 3 and, if applicable, 31 on the tool carrier 8, etc. is rotatably mounted on the axles 35 and 24 and can be driven by the motor shaft 13 via the clutch 29 or the reduction gear 21. (Figure 3 or 1 and 2).

Gemäß Figur 1, einer bevorzugten Ausführungsform der Erfindung, ist dabei das Schwunggewicht 4 an zwei identischen Vorgelegerädern 20, 20ʹ des Untersetzungs­getriebes 21 verteilt. Diese sind in einer Ebene und symmetrisch zueinander am Werkzeugträger 8, uzw. an den Achsen 24 zusammen mit den Schwunggewichts­teilen 4 drehbar gelagert und werden von dem an der Motorwelle 13 befestigten Zahnritzel 19 angetrieben.According to Figure 1, a preferred embodiment of the invention, the swing weight 4 is distributed to two identical countershafts 20, 20ʹ of the reduction gear 21. These are in one plane and symmetrical to one another on the tool carrier 8, etc. on the axles 24 together with the flywheel parts 4 rotatably and are driven by the pinion 19 attached to the motor shaft 13.

Die Figur 2 zeigt in erfindungsgemäßer Weiterbildung das Gerät gemäß Figur 1 zusätzlich mit der Staubabsaugeinrichtung 31, 40, mit deren Hilfe gleichzeitig auch eine Staubabsaugung durchführbar ist. Hiefür ist am Werkzeugträger 8 der ringförmige Ansatz 23 für den Gebläseläufer 31 vorgesehen. Der unterhalb des Untersetzungsgetriebes 21 liegende Gebläseläufer 31 ist mittels der Schraube 42 mit dem an der Motorwelle 13 befestigten Zahnritzel 19 verbunden. Am ringförmigen Ansatz 23 ist das als Reinigungsbürste ausgebildete Werkzeug 1 mittels der Schnappkupplung 22 einsetzbar. Die Reinigungsbürste 1 besitzt zu­mindest eine zur Ansaugöffnung 32 des Gebläseläufers 31 führende Durchström­öffnung 41, die über eine radial am Werkzeugträger 8, uzw. am ringförmigen Ansatz 23 angeordnete Austrittsöffnung 44 mit der am Gehäuse 2 angeordneten Staubfangvorrichtung 40 durchströmbar verbunden ist. Um zu vermeiden, daß die Staubfangvorrichtung 40 die Schwingungen der Antriebseinheit 3, 31 abbremst, ist vorteilbringend zwischen diesen die flexible Durchströmverbindung 45 angeordnet.In a further development according to the invention, FIG. 2 additionally shows the device according to FIG. 1 with the dust extraction device 31, 40, with the aid of which dust extraction can also be carried out at the same time. For this purpose, the annular extension 23 for the fan rotor 31 is provided on the tool carrier 8. The fan rotor 31 located below the reduction gear 21 is connected by means of the screw 42 to the toothed pinion 19 fastened to the motor shaft 13. The tool 1, which is designed as a cleaning brush, can be used on the annular extension 23 by means of the snap coupling 22. The cleaning brush 1 has at least one throughflow opening 41 leading to the suction opening 32 of the blower rotor 31, which through a radial opening on the tool carrier 8, etc. the outlet opening 44 arranged on the annular extension 23 is connected to the dust collecting device 40 arranged on the housing 2 so that it can flow through. In order to avoid that the dust collecting device 40 brakes the vibrations of the drive unit 3, 31, the flexible flow connection 45 is advantageously arranged between them.

In Figur 3 ist gemäß einer anderen Ausführungsform der Erfindung das Schwungge­wicht 4 über die Kupplung 29 antreibbar. Die Kupplung 29 ist gemäß einer Fortbildung der Erfindung lösbar ausgebildet, wobei der lösbare Kupplungsteil 29ʹ mit dem exzentrischen Schwunggewicht 4 an der Achse 35 einer am Werkzeugträger 8 entfernbaren Bodenplatte 28 drehbar ge­lagert ist. Werkzeugträger 8 und Bodenplatte 28 sind zu diesem Zweck mit dem Gewinde- oder Bajonettverschluß 27 ausgebildet. Man kann dadurch nicht nur ver­schieden große Schwunggewichte 4 für eine Wirkungsänderung des Gerätes leicht anbringen, sondern in weiterer Folge auch die Umbildung des Gerätes zum Staub absaugen wesentlich erleichtern.According to another embodiment of the invention, the flywheel weight 4 can be driven via the clutch 29 in FIG. The coupling 29 is designed to be detachable in accordance with a further development of the invention, the detachable coupling part 29ʹ with the eccentric swing weight 4 being rotatably mounted on the axis 35 of a base plate 28 which can be removed on the tool carrier 8. Tool carrier 8 and base plate 28 are formed with the threaded or bayonet lock 27 for this purpose. It is not only possible to attach swing weights 4 of different sizes for a change in the effectiveness of the device, but also to make the conversion of the device to vacuuming much easier.

Zum Zwecke einer Staubabsaugung ist in an sich bekannter Weise an der Motor­welle13 zusätzlich ein Staub absaugender Gebläseläufer 31 angeordnet, dessen Nabe 30 in erfindungsgemäßer Fortbildung zugleich als der weitere Teil der lös­baren Kupplung 29 ausgebildet ist. Um nun bei der Oberflächenbehandlung den Gebläseläufer 31 außer Funktion zu setzen, ist bekannterweise eine die An­saugöffnung 32 des Gebläseläufers 31 verschließende Abdeckung 33 vorgesehen, die gemäß einer anderen weiteren Fortbildung der Erfindung zusammen mit dem Schwunggewicht 4 an der Achse 35 der entfernbaren Bodenplatte 28 drehbar ge­lagert ist. Die Abdeckung 33 besteht aus einem elastischen Material, z. B. aus Schaumstoff und kann mit dem Schwunggewicht 4 verklebt sein. Damit ist es nunmehr möglich, Schwunggewicht 4 und Abdeckung 33 mit nur mehr einem Handgriff, nämlich durch lösen des Verschlußes 27 vom Gerät zu entfernen und anstelle dieser ebenso einfach eine Staubfangvorrichtung 40 zum Staub absaugen anzubringen. Der Schalter 17 ist mehrfach umschaltbar, sodaß einzelne Batterien 16 zum Zwecke einer Geschwindigkeitsänderung des Motors 5 zu- bzw. abgeschaltet werden können.For the purpose of dust extraction, a dust-extracting fan rotor 31 is additionally arranged on the motor shaft 13 in a manner known per se, the hub 30 of which, in a further development according to the invention, is also designed as the further part of the releasable clutch 29. In order now for the surface treatment To put the blower rotor 31 out of operation, it is known to provide a cover 33 which closes the suction opening 32 of the blower rotor 31 and, according to another further development of the invention, is rotatably mounted together with the flywheel weight 4 on the axis 35 of the removable base plate 28. The cover 33 is made of an elastic material, e.g. B. made of foam and can be glued to the swing weight 4. It is now possible to remove the flywheel 4 and cover 33 from the device with just one hand, namely by loosening the closure 27, and instead of simply attaching a dust collector 40 for vacuuming. The switch 17 can be switched several times, so that individual batteries 16 can be switched on or off for the purpose of changing the speed of the motor 5.

In Figur 4 ist die hiefür geeignete Staubfangvorrichtung 40 näher dargestellt. Diese besteht im wesentlichen aus dem Staubfangbehälter 37 mit Handgriff 38 und dem in Staubfangbehälter 37 einsetzbaren Staubfilter 39. Der Staubfang­behälter 37 ist mit einem mit der Bodenplatte 28 identischen Verschlußteil 27 ausgebildet.FIG. 4 shows the dust collecting device 40 suitable for this. This consists essentially of the dust collecting container 37 with handle 38 and the dust filter 39 which can be inserted into the dust collecting container 37. The dust collecting container 37 is designed with a closure part 27 which is identical to the base plate 28.

Die in den einzelnen Figuren dargestellten und beschriebenen erfindungsge­mäßen Maßnahmen sind auch untereinander vertauschbar. So können z. B. Kupplung 29 und Untersetzungsgetriebe 21 gemeinsam angeordnet sein, oder es kann auch der Gebläseläufer 31 von Fig. 2 durch Abdeckung seiner Ansaugöffnung oder durch Entfernen desselben außer Funktion gesetzt werden. Es ist ferner möglich, den Motor 5 auch mit anderen als dargestellten Stromquellen, gegebenenfalls auch über elektrische Regeleinrichtungen stufenlos zu betreiben, sowie Ausbildungen vorzusehen, durch welche das Gerät auch als Bodengerät oder stationär ver­wendbar ist. Mit erfindungsgemäßem Gerät können Oberflächenbehandlungen jeglicher Art, einschließlich der Körpermassage durchgeführt werden.The measures according to the invention shown and described in the individual figures are also interchangeable. So z. B. clutch 29 and reduction gear 21 can be arranged together, or it can also the blower rotor 31 of Fig. 2 by covering its suction opening or by removing the same can be disabled. It is also possible to continuously operate the motor 5 with power sources other than those shown, if necessary also via electrical control devices, and to provide designs by which the device can also be used as a floor device or stationary. With the device according to the invention, surface treatments of any kind, including the body massage, can be carried out.

Claims (6)

1. Gerät zum Behandeln, insbesondere zum Reinigen, Polieren und Abschleifen von Oberflächen od. dgl. mittels einer motorisch unwuchtig bewegten Masse, welche zumindest aus einem Elektromotor (5) mit einem von der Motorwelle (13) antreibbaren exzentrischen Schwunngewicht (4) und einem an der Seite des Schwunggewichtes (4), gegebenenfalls über einen Werkzeugträger (8) am Motorgehäuse (5) befestigten Werkzeug (1) besteht und welche eine Antriebs­einheit (3) bildet, die am Gehäuse (2) schwingbar gehalten ist, wobei ge­gebenenfalls an der Antriebseinheit (3) zusätzlich ein von der Motor­welle (13) antreibbarer Staub absaugender Gebläseläufer (31) für eine am Gerät einsetzbare Staubfangvorrichtung (40) angeordnet ist, dadurch gekennzeichnet, daß das exzentrische Schwunggewicht (4) der Antriebseinheit (3) und gegebenenfalls (31) für sich am Werkzeugträger (8) drehbar gelagert ist und von der Motorwelle (13) über eine Kupplung (29), einem Untersetzungsgetriebe (21) od. dgl. antreibbar ist. (Fig. 1, 2 u. 3).1. Apparatus for treatment, in particular for cleaning, polishing and grinding of surfaces or the like. By means of a mass that is moved in an unbalanced manner, which consists at least of an electric motor (5) with an eccentric spinning weight (4) that can be driven by the motor shaft (13) and a on the side of the flywheel weight (4), optionally via a tool carrier (8) attached to the motor housing (5) tool (1) and which forms a drive unit (3) which is held on the housing (2) in a swingable manner, optionally on the Drive unit (3) is additionally arranged a dust-extracting fan rotor (31), which can be driven by the motor shaft (13), for a dust-collecting device (40) which can be used on the device, characterized in that the eccentric swing weight (4) of the drive unit (3) and optionally (31 ) is rotatably mounted on the tool carrier (8) and can be driven by the motor shaft (13) via a clutch (29), a reduction gear (21) or the like. (Fig. 1, 2 and 3). 2. Gerät nach Anspruch 1, dadurch gekennzeichnet, daß das Untersetzungsge­triebe (21) aus einem von der Motorwelle (13) antreibbaren Zahnritzel (19) und mehreren, vorzugsweise zwei identischen Vorgelegerädern (20, 20ʹ) besteht, welche im wesentlichen in einer Ebene und symmetrisch zueinander am Werkzeugträger (8) drehbar gelagert sind und an welchen das Schwungge­wicht (4) in etwa zu gleichen Gewichtsteilen verteilt ist. (Fig. 1 u. 2).2. Apparatus according to claim 1, characterized in that the reduction gear (21) consists of a pinion (19) which can be driven by the motor shaft (13) and several, preferably two identical countershaft gears (20, 20ʹ), which are essentially in one plane and are rotatably mounted symmetrically to one another on the tool carrier (8) and on which the swing weight (4) is distributed in approximately equal parts by weight. (Fig. 1 and 2). 3. Gerät nach Anspruch 2, mit einem an der Antriebseinheit (3) zusätzlich angeordneten Staub absaugenden Gebläseläufer (31), dadurch gekennzeichnet, daß sich der Gebläseläufer (31) in einem am Werkzeugträger (8) unterhalb des Untersetzungsgetriebes (21) anschließenden ringförmigen Ansatz (23) befindet, welcher Ansatz (23) nach unten hin vorzugsweise durch das ein­setzbare Werkzeug (1) abdeckbar ist, wobei zumindest eine an der Abdeckung bzw. am Werkzeug (1) vorgesehene Öffnung (41) über die Ansaugöffnung (32) des Gebläseläufers (31) mit einer hinter dem Gebläseläufer (31) am Gehäuse (2) befestigten Staubfangvorrichtung (40) einmündend verbunden ist. (Fig. 2).3. Apparatus according to claim 2, with an additional arranged on the drive unit (3) dust-extracting fan rotor (31), characterized in that the fan rotor (31) in an on the tool carrier (8) below the reduction gear (21) adjoining annular approach (23), which approach (23) can preferably be covered at the bottom by the insertable tool (1), at least one opening (41) provided on the cover or on the tool (1) via the suction opening (32) of the fan rotor (31) is connected to a dust collecting device (40) attached to the housing (2) behind the fan rotor (31). (Fig. 2). 4. Gerät nach Anspruch 3, dadurch gekennzeichnet, daß zwischen dem ring­förmigen Ansatz (23) und der Staubfangvorrichtung (40) eine flexible Durchströmverbindung (45) angeordnet ist. (Fig. 2).4. Apparatus according to claim 3, characterized in that a flexible flow connection (45) is arranged between the annular extension (23) and the dust collecting device (40). (Fig. 2). 5. Gerät nach Anspruch 1, dadurch gekennzeichnet, daß die Kupplung (29) lösbar ausgebildet ist und daß der lösbare Kupplungsteil (29ʹ) mit dem exzentrischen Schwunggewicht (4) an einer vom Werkzeugträger (8) ent­fernbaren Bodenplatte (28) drehbar gelagert ist. (Fig. 3).5. Apparatus according to claim 1, characterized in that the coupling (29) is detachable and that the detachable coupling part (29ʹ) with the eccentric swing weight (4) on a removable from the tool carrier (8) base plate (28) is rotatably mounted. (Fig. 3). 6. Gerät nach Anspruch 5, mit einem an der Antriebseinheit (3) zusätzlich angeordneten Staub absaugenden Gebläseläufer (31), dadurch gekennzeichnet, daß eine bekannterweise die Ansaugöffnung (32) des Gebläseläufers (31) verschließende Abdeckung (33) zusammen mit dem Schwunggewicht (4) an der entfernbaren Bodenplatte (29) drehbar gelagert ist und daß die Boden­platte (28) mitsamt dem Schwunggewicht (4), der Abdeckung (33) und dem Kupplungsteil (29ʹ) zugunsten des Einsatzes einer Staubfangvorrichtung (40) entfernbar ist. (Fig. 3 u. 4).6. Apparatus according to claim 5, with an on the drive unit (3) additionally arranged dust-sucking fan runner (31), characterized in that a known known the suction opening (32) of the fan runner (31) closing cover (33) together with the swing weight ( 4) on the removable base plate (29) is rotatably mounted and that the base plate (28) together with the flywheel (4), the cover (33) and the coupling part (29ʹ) can be removed in favor of the use of a dust collector (40). (Figs. 3 and 4).
EP19870100838 1986-02-04 1987-01-22 Tool for the treatment of surfaces or the like Expired - Lifetime EP0232761B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT257/86 1986-02-04
AT25786A AT397761B (en) 1986-02-04 1986-02-04 DEVICE FOR TREATING SURFACES OD. DGL.

Publications (3)

Publication Number Publication Date
EP0232761A2 true EP0232761A2 (en) 1987-08-19
EP0232761A3 EP0232761A3 (en) 1988-07-20
EP0232761B1 EP0232761B1 (en) 1991-07-31

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ID=3485731

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Application Number Title Priority Date Filing Date
EP19870100838 Expired - Lifetime EP0232761B1 (en) 1986-02-04 1987-01-22 Tool for the treatment of surfaces or the like

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EP (1) EP0232761B1 (en)
AT (1) AT397761B (en)
DE (1) DE3771738D1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710527A2 (en) * 1993-02-04 1996-05-08 Robert Bosch Gmbh Handtool for machining surfaces
WO2005108010A1 (en) * 2004-04-01 2005-11-17 Robert Bosch Gmbh Hand-guided grinding machine, grinding machine holding unit, and grinding machine housing
GB2520188B (en) * 2013-06-05 2015-12-02 Grey Technology Ltd Hand-held vacuum cleaner and extendable hose
US9560944B2 (en) 2010-12-22 2017-02-07 Grey Technology Limited Vacuum cleaner
US9737183B2 (en) 2013-04-10 2017-08-22 Grey Technology Limited Vacuum cleaner
US9943199B2 (en) 2013-06-05 2018-04-17 Grey Technology Limited Hand-held vacuum cleaner

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US2764852A (en) * 1954-09-16 1956-10-02 Porter Cable Machine Co Portable power operated sanding machine
DE2319350A1 (en) * 1973-04-17 1974-11-07 Rolf Rodekuhr CAR VACUUM CLEANER WITH BUILT-IN CABLE DRUM AND GEAR INSERT FOR POLISHING AND GRINDING
FR2420276A7 (en) * 1978-03-16 1979-10-12 Valentini Guido Portable vibratory electric sander - uses fan to cool electric motor and is mounted against cam which drives sole plate
DE3326854A1 (en) * 1983-07-26 1985-02-14 Festo KG, 7300 Esslingen Portable machine tool having a tool disc mounted by way of double eccentrics

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BE430719A (en) * 1937-10-22
AT361175B (en) * 1978-09-04 1981-02-25 Lex Franz Ing CLEANING DEVICE FOR SHUTTERS
AT377173B (en) * 1982-11-19 1985-02-25 Lex Franz DEVICE FOR SURFACE TREATMENT, IN PARTICULAR TO CLEAN AND POLISH

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Publication number Priority date Publication date Assignee Title
US2764852A (en) * 1954-09-16 1956-10-02 Porter Cable Machine Co Portable power operated sanding machine
DE2319350A1 (en) * 1973-04-17 1974-11-07 Rolf Rodekuhr CAR VACUUM CLEANER WITH BUILT-IN CABLE DRUM AND GEAR INSERT FOR POLISHING AND GRINDING
FR2420276A7 (en) * 1978-03-16 1979-10-12 Valentini Guido Portable vibratory electric sander - uses fan to cool electric motor and is mounted against cam which drives sole plate
DE3326854A1 (en) * 1983-07-26 1985-02-14 Festo KG, 7300 Esslingen Portable machine tool having a tool disc mounted by way of double eccentrics

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0710527A2 (en) * 1993-02-04 1996-05-08 Robert Bosch Gmbh Handtool for machining surfaces
EP0710527A3 (en) * 1993-02-04 1996-09-04 Bosch Gmbh Robert Handtool for machining surfaces
WO2005108010A1 (en) * 2004-04-01 2005-11-17 Robert Bosch Gmbh Hand-guided grinding machine, grinding machine holding unit, and grinding machine housing
US7771253B2 (en) 2004-04-01 2010-08-10 Robert Bosch Gmbh Hand-guided sander, sander cradle, and sander housing
CN1938127B (en) * 2004-04-01 2010-09-01 罗伯特·博世有限公司 Hand-guided grinding machine
US9560944B2 (en) 2010-12-22 2017-02-07 Grey Technology Limited Vacuum cleaner
US9737183B2 (en) 2013-04-10 2017-08-22 Grey Technology Limited Vacuum cleaner
GB2520188B (en) * 2013-06-05 2015-12-02 Grey Technology Ltd Hand-held vacuum cleaner and extendable hose
US9943199B2 (en) 2013-06-05 2018-04-17 Grey Technology Limited Hand-held vacuum cleaner

Also Published As

Publication number Publication date
AT397761B (en) 1994-06-27
ATA25786A (en) 1993-11-15
EP0232761B1 (en) 1991-07-31
EP0232761A3 (en) 1988-07-20
DE3771738D1 (en) 1991-09-05

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