EP1138245A2 - Drive system for floor maintenance device - Google Patents

Drive system for floor maintenance device Download PDF

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Publication number
EP1138245A2
EP1138245A2 EP01106193A EP01106193A EP1138245A2 EP 1138245 A2 EP1138245 A2 EP 1138245A2 EP 01106193 A EP01106193 A EP 01106193A EP 01106193 A EP01106193 A EP 01106193A EP 1138245 A2 EP1138245 A2 EP 1138245A2
Authority
EP
European Patent Office
Prior art keywords
drive
spring
care
plate
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01106193A
Other languages
German (de)
French (fr)
Other versions
EP1138245B1 (en
EP1138245A3 (en
Inventor
Michael Conze
Gerhard Ullrich
Matthias Dipl.-Ing. Varnhorst
Dirk Röllinghoff
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.)
Vorwerk and Co Interholding GmbH
Original Assignee
Vorwerk and Co Interholding GmbH
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 Vorwerk and Co Interholding GmbH filed Critical Vorwerk and Co Interholding GmbH
Publication of EP1138245A2 publication Critical patent/EP1138245A2/en
Publication of EP1138245A3 publication Critical patent/EP1138245A3/en
Application granted granted Critical
Publication of EP1138245B1 publication Critical patent/EP1138245B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/02—Floor surfacing or polishing machines
    • A47L11/10—Floor surfacing or polishing machines motor-driven
    • A47L11/14—Floor surfacing or polishing machines motor-driven with rotating tools
    • A47L11/16—Floor surfacing or polishing machines motor-driven with rotating tools the tools being disc brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/28—Floor-scrubbing machines, motor-driven
    • A47L11/282—Floor-scrubbing machines, motor-driven having rotary tools
    • A47L11/283—Floor-scrubbing machines, motor-driven having rotary tools the tools being disc brushes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4036—Parts or details of the surface treating tools
    • A47L11/4038—Disk shaped surface treating tools
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L11/00—Machines for cleaning floors, carpets, furniture, walls, or wall coverings
    • A47L11/40—Parts or details of machines not provided for in groups A47L11/02 - A47L11/38, or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers, levers
    • A47L11/4063—Driving means; Transmission means therefor
    • A47L11/4069—Driving or transmission means for the cleaning tools

Definitions

  • the invention relates to a drive for a floor care device, especially for a polisher, for rotating Driving a washer, taking the drive has a drive shaft by means of driving cams drives a take-away plate, which take-away plate via drive fingers on abutment of the care disc acts, the driving plate in the axial direction by a spring in the direction of the care disc is acted upon.
  • a drive for a floor care device in question Art is known, for example, from DE-A1 197 28 927, at which one or both sides with a care surface provided care discs are provided. These care discs become over one, by driving cams one Drive shaft driven entrainment plate dragged, with a spring in the axial direction on the takeaway plates to leave it in Direction on the care discs.
  • the content the aforementioned patent application is hereby fully in the disclosure of the present invention included, also for the purpose, features of this patent application to be included in claims of the present invention.
  • a torsion spring element is preferably integrated, so that the backdrop or the take-away plate does not end of a twist path remains. This is a limited one Rotation of, for example, 90 ° of the drive plate provided on the drive shaft.
  • Disc torque measurements gave an exemplary load of 0.3 to 1.2 of the nominal output torque of the motor-gear unit.
  • the suspension of the same was so chosen that a torsional preload of about that 0.3 to 0.6, preferably 0.4 times the drive torque is at rest and the spring torque at the load stop 1 to 1.5 times, preferably 1.2 times the drive torque exceeds.
  • the spring is preferred axially inserted on the drive shaft or cross shaft and mainly tangential hooks or the like on the backdrop or on the take-away plate locked.
  • the take-away plate is by rotation about 40 to 60 °, preferably 50 ° brought to bias and locked onto the drive shaft.
  • the same spring Driving plate both in the axial direction and in Applied circumferential direction.
  • the spring is a spiral spring is.
  • the ends of the coil spring at one end on the Drive shaft and other ends rotatably on the drive plate are connected.
  • four drive fingers and four Abutment provided in an even distribution are, so that by the spring-assisted rotatability of the drive plate on the cross shaft or the drive shaft around 90 ° always a system between Drive finger and abutment of the care disc is.
  • a floor care device 1 in the form of a floor polisher, which three, a device base 2 essentially penetrating care discs 3.
  • Each care disc 3 has a circular plan, plate-like base support 4, on its edge a circumferential toothing 5 is formed.
  • the base support 4 is provided with a hub 6, which the latter is on both sides of the base support 4 in the axial direction extends.
  • the hub 6 is one side of the one or Care disc provided on both sides with a care coating 7 3 assigned a centrally formed support formation 8 formed. This is opposite a hub face arranged sunk.
  • each support formation 8 is a centering or Insertion recess 9 coaxially shaped. Both the Support formation 8 as well as the centering recess 9 are approximately hemispherical, the Centering recess 9 with respect to the radius of the Support formation 8 has an enlarged diameter.
  • the care disc 3 has abutments on both sides 10 for a drive shaft of the floor care device 1 on. These are in shape on both sides of the base support 4 formed by radial vanes. As shown, will preferred, four arranged in an angular distribution Provide abutment 10.
  • Each abutment 10 extends in the axial direction from the base support 4, which is thinner in the hub area is as in the outer area that supports the covering, to the level of the hub face.
  • each abutment 10 On the back surface facing away from the loading side each abutment 10 is provided with support ribs 11 (cf. Fig. 3).
  • the care disc provided with the reference number 3 in FIG. 1 is via a drive shaft of the floor care device 1 driven.
  • the two other care discs 3 ' are by means of the peripheral teeth 5 of the main drive pulley 3 driven directly. It is however, a solution is also conceivable in which a care disc 3 'is actively driven, the care disc 3 directly over this and the other care disc 3 'driven indirectly via the care disc 3 becomes. It is also conceivable for the individual care discs 3 or 3 'to form the circumference without driving elements and drive each one directly.
  • the drive shaft 12 shown in FIG. 3 is at the end with a non-rotatably connected support finger 13 provided.
  • the latter is hemispherical at the end formed, the 13 about this support finger Vertical force from the floor care device 1 via the support formation 8 of the hub 6 introduced into the care disc 3 becomes.
  • the support finger also shown schematically in FIG. 4 13 has two diametrically opposed, radially protruding driving cams 14.
  • Such a support finger 13 serves at the same time for the non-directly driven care discs 3 'for centering the same, these support fingers 13 arranged on non-driven centering shafts are.
  • a carrier plate 15 is also provided, which has a central opening 16 for passage of the support finger 13, of which opening 16 two diametrically opposite, radially outward pointing in the circumferential direction by approximately 90 ° Take out slots 17. After merging of support finger 13 and driving plate 15 occur Driving cams 14 in the area of the driving slots 17 to take the driving plate 15 with it.
  • the drive plate 15 On the underside, the drive plate 15 has four, in drive fingers arranged in an even distribution 18, to take the care discs 3, 3 'in the area their abutments 10.
  • the driving plate 15 is supported by a spring 19 in Form of a coil spring on the drive shaft 12 from axial loading of the driving plate 15 in the direction on the care discs 3, 3 '.
  • the driving plate 15 is in vertically movable on the support finger 13 supported.
  • the ends of the spring 19 are non-rotatably on the one Drive shaft 12 and other ends rotatably on the drive plate 15 connected, whereby the driving plate 15th in addition to the application in the axial direction at the same time is spring loaded in the circumferential direction.

Landscapes

  • Transmission Devices (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Springs (AREA)
  • Brushes (AREA)
  • Floor Finish (AREA)

Abstract

The drive has a drive shaft (12) which drives an entrainment plate (15) through follower cams (14). The entrainment plate is biased axially by a spring towards the polishing disc and also by the same spring (19) in the circumferential direction for contact between the drive finger (18) and abutment (10) The spring is preferably a spiral spring whose ends are connected rotationally secured on the drive shaft at one end and on the entrainment plate at the other.

Description

Die Erfindung betrifft einen Antrieb für ein Bodenpflegegerät, insbesondere für ein Bohnergerät, zum rotierenden Antreiben einer Pflegescheibe, wobei der Antrieb eine Antriebswelle aufweist, die mittels Mitnahmenocken einen Mitnahmeteller antreibt, welcher Mitnahmeteller über Antriebsfinger auf Widerlager der Pflegescheibe einwirkt, wobei der Mitnahmeteller in axialer Richtung durch eine Feder in Richtung auf die Pflegescheibe beaufschlagt ist.The invention relates to a drive for a floor care device, especially for a polisher, for rotating Driving a washer, taking the drive has a drive shaft by means of driving cams drives a take-away plate, which take-away plate via drive fingers on abutment of the care disc acts, the driving plate in the axial direction by a spring in the direction of the care disc is acted upon.

Ein Antrieb für ein Bodenpflegegerät der in Rede stehenden Art ist bspw. aus der DE-A1 197 28 927 bekannt, bei welcher ein- oder beidseitig mit einem Pflegebelag versehene Pflegescheiben vorgesehen sind. Diese Pflegescheiben werden über einen, durch Mitnahmenocken einer Antriebswelle angetriebenen Mitnahmeteller mitgeschleppt, wobei weiter eine Feder in axialer Richtung auf den Mitnahmetellern zur Belassung desselben in Richtung auf die Pflegescheiben einwirkt. Der Inhalt vorgenannter Patentanmeldung wird hiermit vollinhaltlich in die Offenbarung vorliegender Erfindung mit einbezogen, auch zu dem Zweck, Merkmale dieser Patentanmeldung in Ansprüche vorliegender Erfindung mit einzubeziehen.A drive for a floor care device in question Art is known, for example, from DE-A1 197 28 927, at which one or both sides with a care surface provided care discs are provided. These care discs become over one, by driving cams one Drive shaft driven entrainment plate dragged, with a spring in the axial direction on the takeaway plates to leave it in Direction on the care discs. The content the aforementioned patent application is hereby fully in the disclosure of the present invention included, also for the purpose, features of this patent application to be included in claims of the present invention.

Im Hinblick auf den zuvor beschriebenen Stand der Technik wird eine technische Problematik der Erfindung darin gesehen, einen Antrieb für ein Bodenpflegegerät der in Rede stehenden Art in vorteilhafter Weise weiterzubilden.In view of the prior art described above becomes a technical problem of the invention seen in it, a drive for a floor care device of the type in question in an advantageous manner.

Gelöst ist diese Problematik zunächst und im wesentlichen durch den Gegenstand des Anspruches 1, wobei darauf abgestellt ist, dass der Mitnahmeteller auch durch eine Feder in Umfangsrichtung im Hinblick auf eine Anlage zwischen Antriebsfinger und Widerlager beaufschlagt ist. Zufolge dieser Ausgestaltung ist bei einem Anlaufen des Antriebes einem Vorspringen der Pflegescheibe und einem nachfolgenden mehrfachen Anschlagen zwischen Mitnehmer bzw. Kulisse und Pflegescheibe entgegengewirkt, da erfindungsgemäß durch die in Umfangsrichtung wirkende Feder stets der Antriebsfinger des Mitnahmetellers in Anlage zum Widerlager der Pflegescheibe gedrängt wird. Es kommt somit nicht zu einem Aufschaukeln des Pflegegerätes auf den Pflegescheiben. Durch das Vermeiden des Anfahrschlages des Antriebsfingers gegen das Widerlager der Pflegescheiben ist ein ruhiger, schlagfreier Lauf des Bodenpflegegerätes auf dem zu pflegenden Boden unabhängig von der Wahl des Pflegebelages auf der Pflegescheibe gewährleistet. Lastspitzen werden von der Pflegescheibe abgefedert. Bevorzugt wird ein Torsionsfederelement integriert, damit die Kulisse bzw. der Mitnahmeteller nicht am Ende eines Verdrehweges stehenbleibt. Hierzu ist eine begrenzte Verdrehbarkeit von bspw. um 90° des Mitnahmetellers auf der Antriebswelle vorgesehen. Bei der Auslegung der in Umfangsrichtung wirkenden Feder ist das zu übertragende Drehmoment wesentlich. Die Torsionsfederkraft ist hierbei so gross, dass das Antriebsmoment einer bzw. mehrerer Pflegescheiben aufgefangen wird, ohne das das Dämpfungselement an den Anschlag gelangt und damit wirkungslos wird. Messungen des Scheibenmomentes ergaben eine beispielhafte Last von 0,3 bis 1,2 des Nennabtriebsmoments der Motor-Getriebe-Einheit. Um aus der Feder eine entsprechende Gegenkraft zu erzielen, wurde erfindungsgemäß die Aufhängung derselben so gewählt, dass eine Torsionsvorspannung von etwa dem 0,3- bis 0,6-, bevorzugt 0,4-fachen des Antriebsmoments im Ruhezustand vorliegt und das Federmoment am Lastanschlag das 1- bis 1,5-, bevorzugt 1,2-fache des Antriebsmoments übersteigt. Um eine einfache und zuverlässige Montage zu gewährleisten, wird die Feder bevorzugt axial auf die Antriebswelle oder Kreuzwelle gesteckt und durch vornehmlich tangential wirkende Haken oder dergleichen an der Kulisse bzw. an dem Mitnahmeteller arretiert. Der Mitnahmeteller ist durch Drehung um etwa 40 bis 60°, bevorzugt 50° auf Vorspannung gebracht und auf der Antriebswelle verrastet. In einer bevorzugten Ausgestaltung des Erfindungsgegenstandes ist zur Bauteileminimierung vorgesehen, dass dieselbe Feder den Mitnahmeteller sowohl in axialer Richtung als auch in Umfangsrichtung beaufschlagt. Als besonders vorteilhaft erweist sich hierbei, dass die Feder eine Spiralfeder ist. Diesbezüglich wird weiter vorgeschlagen, dass die Enden der Spiralfeder einerends drehfest an der Antriebswelle und anderenends drehfest an dem Mitnahmeteller angebunden sind. Schließlich erweist es sich als vorteilhaft, dass vier Antriebsfinger und vier Widerlager in winkelgleichmäßiger Verteilung vorgesehen sind, so daß durch die federunterstützte Verdrehbarkeit des Mitnahmetellers auf der Kreuzwelle bzw. der Antriebswelle um etwa 90° stets eine Anlage zwischen Antriebsfinger und Widerlager der Pflegescheibe gegeben ist.This problem has been solved initially and essentially by the subject matter of claim 1, being thereon is turned off that the take-away plate also by a spring in the circumferential direction with regard to a System applied between drive finger and abutment is. As a result of this configuration is at a start of the drive a projection of the Care disc and a subsequent multiple strokes between driver or backdrop and care disc counteracted, because according to the invention by the spring acting in the circumferential direction always the drive finger of the drive plate in attachment to the abutment of the Care disc is pushed. So it does not happen a swinging of the care device on the care discs. By avoiding the impact of the Drive fingers against the abutment of the care discs is a quiet, shock-free run of the floor care device on the floor to be maintained regardless of the choice of the care surface on the care disc. Peak loads are cushioned by the care disc. A torsion spring element is preferably integrated, so that the backdrop or the take-away plate does not end of a twist path remains. This is a limited one Rotation of, for example, 90 ° of the drive plate provided on the drive shaft. When interpreting the spring acting in the circumferential direction is too transmitting torque essential. The torsion spring force is so large that the drive torque one or more care discs is collected, without the damping element reaching the stop and thus becomes ineffective. Disc torque measurements gave an exemplary load of 0.3 to 1.2 of the nominal output torque of the motor-gear unit. Around to achieve a corresponding counterforce from the spring, according to the invention the suspension of the same was so chosen that a torsional preload of about that 0.3 to 0.6, preferably 0.4 times the drive torque is at rest and the spring torque at the load stop 1 to 1.5 times, preferably 1.2 times the drive torque exceeds. To be simple and reliable To ensure assembly, the spring is preferred axially inserted on the drive shaft or cross shaft and mainly tangential hooks or the like on the backdrop or on the take-away plate locked. The take-away plate is by rotation about 40 to 60 °, preferably 50 ° brought to bias and locked onto the drive shaft. In a preferred one Design of the subject of the invention is for Component minimization provided that the same spring Driving plate both in the axial direction and in Applied circumferential direction. To be particularly advantageous it turns out that the spring is a spiral spring is. In this regard, it is further proposed that the ends of the coil spring at one end on the Drive shaft and other ends rotatably on the drive plate are connected. Finally it turns out as advantageous that four drive fingers and four Abutment provided in an even distribution are, so that by the spring-assisted rotatability of the drive plate on the cross shaft or the drive shaft around 90 ° always a system between Drive finger and abutment of the care disc is.

Nachstehend ist die Erfindung anhand der beigefügten Zeichnung, welche lediglich ein Ausführungsbeispiel darstellt, näher erläutert. Es zeigt

Fig. 1
eine Unteransicht eines erfindungsgemäßen Bodenpflegegerätes in Form eines Bohnergerätes;
Fig. 2
eine perspektivische Darstellung dreier Pflegescheiben, wobei eine Antriebs-Pflegescheibe mittels einer Umfangsverzahnung die beiden weiteren Pflegescheiben antreibt;
Fig. 3
eine perspektivische, partiell geschnittene Einzeldarstellung einer Antriebskupplung des Bodenpflegegerätes;
Fig. 4
eine schematische Darstellung in Draufsicht auf einen federbelasteten Mitnahmeteller des Antriebes.
The invention is explained in more detail below with reference to the accompanying drawing, which only represents an exemplary embodiment. It shows
Fig. 1
a bottom view of a floor care device according to the invention in the form of a floor polisher;
Fig. 2
a perspective view of three care disks, wherein a drive care disk drives the two other care disks by means of circumferential teeth;
Fig. 3
a perspective, partially sectioned individual view of a drive coupling of the floor care device;
Fig. 4
is a schematic representation in plan view of a spring-loaded drive plate of the drive.

Dargestellt und beschrieben ist zunächst mit Bezug zu Fig. 1 ein Bodenpflegegerät 1 in Form eines Bohnergerätes, welches drei, einen Geräteboden 2 im wesentlichen durchtretende Pflegescheiben 3 aufweist.Is shown and described initially with reference to 1 is a floor care device 1 in the form of a floor polisher, which three, a device base 2 essentially penetrating care discs 3.

Jede Pflegescheibe 3 besitzt einen im Grundriss kreisförmigen, tellerartigen Grundträger 4, an dessen Randkante eine Umfangsverzahnung 5 ausgebildet ist. Mittig ist der Grundträger 4 mit einer Nabe 6 versehen, welch letztere sich beidseitig des Grundträgers 4 in Axialrichtung erstreckt.Each care disc 3 has a circular plan, plate-like base support 4, on its edge a circumferential toothing 5 is formed. In the middle the base support 4 is provided with a hub 6, which the latter is on both sides of the base support 4 in the axial direction extends.

In der Nabe 6 ist jeweils einer Seite der ein- oder beidseitig mit einem Pflegebelag 7 versehenen Pflegescheibe 3 zugeordnet eine zentral ausgebildete Stützausformung 8 gebildet. Diese ist gegenüber einer Nabenstirnfläche versenkt angeordnet.In the hub 6 is one side of the one or Care disc provided on both sides with a care coating 7 3 assigned a centrally formed support formation 8 formed. This is opposite a hub face arranged sunk.

In der Nabe 6 ist bezogen auf die Nabenstirnfläche vorgelagert jeder Stützausformung 8 eine Zentrier- bzw. Einführausnehmung 9 koaxial ausgeformt. Sowohl die Stützausformung 8 als auch die Zentrierausnehmung 9 sind annähernd halbkugelförmig ausgebildet, wobei die Zentrierausnehmung 9 einen gegenüber dem Radius der Stützausformung 8 vergrößerten Durchmesser besitzt.In the hub 6 is based on the hub face in front of each support formation 8 is a centering or Insertion recess 9 coaxially shaped. Both the Support formation 8 as well as the centering recess 9 are approximately hemispherical, the Centering recess 9 with respect to the radius of the Support formation 8 has an enlarged diameter.

Weiter weist die Pflegescheibe 3 beidseitig Widerlager 10 für eine Antriebswelle des Bodenpflegegerätes 1 auf. Diese sind beidseitig des Grundträgers 4 in Form von Radialflügeln ausgebildet. Wie dargestellt, wird bevorzugt, vier in winkelgleichmäßiger Verteilung angeordnete Widerlager 10 vorzusehen.Furthermore, the care disc 3 has abutments on both sides 10 for a drive shaft of the floor care device 1 on. These are in shape on both sides of the base support 4 formed by radial vanes. As shown, will preferred, four arranged in an angular distribution Provide abutment 10.

Jedes Widerlager 10 erstreckt sich in axialer Richtung vom Grundträger 4, welcher im Nabenbereich dünner ausgebildet ist als im äußeren, den Belag tragenden Bereich, bis zur Ebene der Nabenstirnfläche.Each abutment 10 extends in the axial direction from the base support 4, which is thinner in the hub area is as in the outer area that supports the covering, to the level of the hub face.

Auf der, der Beaufschlagungsseite abgewandten Rückfläche ist jedes Widerlager 10 mit Stützrippen 11 versehen (vergl. hierzu Fig. 3).On the back surface facing away from the loading side each abutment 10 is provided with support ribs 11 (cf. Fig. 3).

Die in Fig. 1 mit der Bezugsziffer 3 versehene Pflegescheibe wird über eine Antriebswelle des Bodenpflegegerätes 1 angetrieben. Die beiden weiteren Pflegescheiben 3' werden mittels der Umfangsverzahnung 5 der Hauptantriebsscheibe 3 unmittelbar angetrieben. Es ist jedoch auch eine Lösung denkbar, bei welcher eine Pflegescheibe 3' aktiv angetrieben wird, die Pflegescheibe 3 unmittelbar über diese und die weitere Pflegescheibe 3' mittelbar über die Pflegescheibe 3 angetrieben wird. Weiter ist denkbar, die einzelnen Pflegescheiben 3 bzw. 3' umfangsseitig ohne Mitnahmeelemente auszubilden und jede einzelne direkt anzutreiben.The care disc provided with the reference number 3 in FIG. 1 is via a drive shaft of the floor care device 1 driven. The two other care discs 3 'are by means of the peripheral teeth 5 of the main drive pulley 3 driven directly. It is however, a solution is also conceivable in which a care disc 3 'is actively driven, the care disc 3 directly over this and the other care disc 3 'driven indirectly via the care disc 3 becomes. It is also conceivable for the individual care discs 3 or 3 'to form the circumference without driving elements and drive each one directly.

Die in Fig. 3 dargestellte Antriebswelle 12 ist endseitig mit einem drehfest mit diesem verbundenen Stützfinger 13 versehen. Letzterer ist endseitig halbkugelförmig ausgeformt, wobei über diesen Stützfinger 13 die Vertikalkraft aus dem Bodenpflegegerät 1 über die Stützausformung 8 der Nabe 6 in die Pflegescheibe 3 eingeleitet wird.The drive shaft 12 shown in FIG. 3 is at the end with a non-rotatably connected support finger 13 provided. The latter is hemispherical at the end formed, the 13 about this support finger Vertical force from the floor care device 1 via the support formation 8 of the hub 6 introduced into the care disc 3 becomes.

Der auch in Fig. 4 schematisch dargestellte Stützfinger 13 weist zwei diametral gegenüberliegend angeordnete, radial abragende Mitnahmenocken 14 auf.The support finger also shown schematically in FIG. 4 13 has two diametrically opposed, radially protruding driving cams 14.

Ein derartig ausgebildeter Stützfinger 13 dient zugleich bei den nicht direkt angetriebenen Pflegescheiben 3' zur Zentrierung derselben, wobei diese Stützfinger 13 auf nicht angetriebenen Zentrierwellen angeordnet sind.Such a support finger 13 serves at the same time for the non-directly driven care discs 3 'for centering the same, these support fingers 13 arranged on non-driven centering shafts are.

Zur Bildung einer wie in Fig. 3 dargestellten Antriebseinheit ist weiter ein Mitnahmeteller 15 vorgesehen, welcher eine zentrale Durchbrechung 16 zum Durchtritt des Stützfingers 13 aufweist, von welcher Durchbrechung 16 zwei diametral gegenüberliegende, radial nach außen weisende, in Umfangsrichtung um ca. 90° sich erstreckende Mitnahmeschlitze 17 ausgehen. Nach einem Zusammenfügen von Stützfinger 13 und Mitnahmeteller 15 treten die Mitnahmenocken 14 in den Bereich der Mitnahmeschlitze 17 zur Drehmitnahme des Mitnahmetellers 15 ein.To form a drive unit as shown in FIG. 3 a carrier plate 15 is also provided, which has a central opening 16 for passage of the support finger 13, of which opening 16 two diametrically opposite, radially outward pointing in the circumferential direction by approximately 90 ° Take out slots 17. After merging of support finger 13 and driving plate 15 occur Driving cams 14 in the area of the driving slots 17 to take the driving plate 15 with it.

Unterseitig besitzt der Mitnahmeteller 15 vier, in winkelgleichmäßiger Verteilung angeordnete Antriebsfinger 18, zur Mitnahme der Pflegescheiben 3, 3' im Bereich ihrer Widerlager 10.On the underside, the drive plate 15 has four, in drive fingers arranged in an even distribution 18, to take the care discs 3, 3 'in the area their abutments 10.

Der Mitnahmeteller 15 stützt sich über eine Feder 19 in Form einer Spiralfeder an der Antriebswelle 12 ab, zur axialen Beaufschlagung des Mitnahmetellers 15 in Richtung auf die Pflegescheiben 3, 3'.The driving plate 15 is supported by a spring 19 in Form of a coil spring on the drive shaft 12 from axial loading of the driving plate 15 in the direction on the care discs 3, 3 '.

Durch diese Ausgestaltung ist der Mitnahmeteller 15 in vertikaler Richtung beweglich an dem Stützfinger 13 gehaltert.With this configuration, the driving plate 15 is in vertically movable on the support finger 13 supported.

Die Enden der Feder 19 sind einerends drehfest an der Antriebswelle 12 und anderenends drehfest an dem Mitnahmeteller 15 angebunden, wodurch der Mitnahmeteller 15 neben der Beaufschlagung in axialer Richtung zugleich in Umfangsrichtung federbeaufschlagt ist.The ends of the spring 19 are non-rotatably on the one Drive shaft 12 and other ends rotatably on the drive plate 15 connected, whereby the driving plate 15th in addition to the application in the axial direction at the same time is spring loaded in the circumferential direction.

Infolge der Doppelfunktion der Feder, insbesondere der Beaufschlagung des Mitnahmetellers in Umfangsrichtung verbleibt letzterer nach einem Ausschalten des Gerätes nicht am Ende des Verdrehweges stehen. Vielmehr wird der Mitnahmeteller 15 stets federunterstützt in eine Anlagestellung zwischen Antriebsfinger 18 des Mitnahmetellers 15 und Widerlager 10 der Pflegescheiben 3, 3' gedrängt, was durch die kreisabschnittförmige Ausbildung der von den Mitnahmenocken 14 der Antriebswelle 12 durchsetzten Mitnahmeschlitze 17 des Mitnahmetellers 15 ermöglicht ist. In einfacher Weise ist hierdurch einem Aufschaukeln des Gerätes 1 auf den Pflegescheiben 3 entgegengewirkt, welches Aufschaukeln bei aus dem Stand der Technik bekannten Antrieben dadurch entsteht, dass die angetriebene Scheibe nicht genau am Mitnehmeranschlag anliegt und somit beim Einschalten des Gerätes ein heftiges Anschlagen an der Scheibe hervorgerufen wird. Der Impuls führt hierbei zu einem nicht gewünschten Vorspringen der Scheibe und nachfolgendem mehrfachen Anschlagen zwischen Mitnehmeranschlag und Scheibe, was zu einem erhöhten Verschleiß und Frühausfall beider Teile führt. As a result of the double function of the spring, in particular the Actuation of the drive plate in the circumferential direction the latter remains after switching off the device do not stand at the end of the twist path. Rather it will the driving plate 15 always spring-assisted in one Position between drive finger 18 of the drive plate 15 and abutment 10 of the care discs 3, 3 ' pushed by the circular section-shaped training of the driving cams 14 of the drive shaft 12 penetrated slots 17 of the driving plate 15 is possible. This is a simple way Swinging the device 1 onto the care discs 3 counteracted, which rocking when standing The drives known in technology result from the fact that the driven disc is not exactly at the driver stop is present and thus when the device is switched on a violent impact on the pane caused becomes. The impulse leads to an unwanted one Projecting the disc and subsequent multiple Stops between the driver stop and the disc, resulting in increased wear and early failure of both Parts leads.

Eine einfache und zuverlässige Montage ist dadurch gegeben, dass die Feder 19 axial auf die Antriebswelle 12 gesteckt und durch vornehmlich tangential wirkende Haken an dem Mitnahmeteller 15 arretiert ist. Letzterer ist durch Drehung um etwa 50° auf Vorspannung gebracht und auf der Antriebswelle 12 verrastet.This makes installation simple and reliable given that the spring 19 axially on the drive shaft 12 inserted and mainly tangential Hook on the driving plate 15 is locked. The latter is preloaded by turning it by about 50 ° and locked on the drive shaft 12.

Zufolge der erfindungsgemäßen Ausgestaltung werden Lastspitzen von den Pflegescheiben 3 abgefedert, womit ein ruhiger Lauf des Gerätes 1 auf allen Böden mit allen Pflegescheiben bzw. Pflegescheibenbelägen gewährleistet ist.As a result of the configuration according to the invention Load peaks cushioned by the care discs 3, with what the device 1 runs smoothly on all floors all care discs or disc coverings guaranteed is.

Alle offenbarten Merkmale sind (für sich) erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch der Offenbarungsinhalt der zugehörigen/beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen, auch zu dem Zweck, Merkmale dieser Unterlagen in Ansprüche vorliegender Anmeldung mit aufzunehmen.All of the features disclosed are (in themselves) essential to the invention. In the disclosure of the registration is hereby also the disclosure content of the associated / attached Priority documents (copy of pre-registration) fully included, also for the purpose of characteristics of these documents in claims of the present application to include.

Claims (5)

Antrieb für ein Bodenpflegegerät (1), insbesondere für ein Bohnergerät, zum rotierenden Antreiben einer Pflegescheibe (3, 3'), wobei der Antrieb eine Antriebswelle (12) aufweist, die mittels Mitnahmenocken (14) einen Mitnahmeteller (15) antreibt, welcher Mitnahmeteller (15) über Antriebsfinger (18) auf Widerlager (10) der Pflegescheibe (3, 3') einwirkt, wobei der Mitnahmeteller (15) in axialer Richtung durch eine Feder (19) in Richtung auf die Pflegescheibe (3, 3') beaufschlagt ist, dadurch gekennzeichnet, dass der Mitnahmeteller (15) auch durch eine Feder (19) in Umfangsrichtung im Hinblick auf eine Anlage zwischen Antriebsfinger (18) und Widerlager (10) beaufschlagt ist.Drive for a floor care device (1), in particular for a floor polisher, for rotatingly driving a care disc (3, 3 '), the drive having a drive shaft (12) which drives a driving plate (15) by means of driving cams (14), which driving plate (15) acts on the abutment (10) of the care disc (3, 3 ') via drive fingers (18), the driving plate (15) acting in the axial direction by a spring (19) in the direction of the care disc (3, 3') , characterized in that the driving plate (15) is also acted upon by a spring (19) in the circumferential direction with regard to contact between the drive finger (18) and the abutment (10). Antrieb nach Anspruch 1 oder insbesondere danach, dadurch gekennzeichnet, dass dieselbe Feder (19) den Mitnahmeteller (15) sowohl in axialer Richtung als auch in Umfangsrichtung beaufschlagt.Drive according to claim 1 or in particular according thereto, characterized in that the same spring (19) acts on the driving plate (15) both in the axial direction and in the circumferential direction. Antrieb nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass die Feder (19) eine Spiralfeder ist.Drive according to one or more of the preceding claims or in particular according thereto, characterized in that the spring (19) is a spiral spring. Antrieb nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass die Enden der Spiralfeder einerends drehfest an der Antriebswelle (12) und anderenends drehfest an dem Mitnahmeteller (15) angebunden sind.Drive according to one or more of the preceding claims or in particular according thereto, characterized in that the ends of the spiral spring are connected at one end to the drive shaft (12) in a rotationally fixed manner and at the other end to the drive plate (15). Antrieb nach einem oder mehreren der vorhergehenden Ansprüche oder insbesondere danach, dadurch gekennzeichnet, dass vier Antriebsfinger (18) und vier Widerlager (10) in winkelgleichmäßiger Verteilung vorgesehen sind.Drive according to one or more of the preceding claims or in particular according thereto, characterized in that four drive fingers (18) and four abutments (10) are provided in an angularly uniform distribution.
EP01106193A 2000-04-01 2001-03-14 Drive system for floor maintenance device Expired - Lifetime EP1138245B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10016404A DE10016404A1 (en) 2000-04-01 2000-04-01 Drive for a floor care device
DE10016404 2000-04-01

Publications (3)

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EP1138245A2 true EP1138245A2 (en) 2001-10-04
EP1138245A3 EP1138245A3 (en) 2005-02-02
EP1138245B1 EP1138245B1 (en) 2006-09-27

Family

ID=7637356

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Application Number Title Priority Date Filing Date
EP01106193A Expired - Lifetime EP1138245B1 (en) 2000-04-01 2001-03-14 Drive system for floor maintenance device

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EP (1) EP1138245B1 (en)
AT (1) ATE340529T1 (en)
DE (2) DE10016404A1 (en)
ES (1) ES2269244T3 (en)
HK (1) HK1040602A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108814461A (en) 2018-09-14 2018-11-16 云鲸智能科技（东莞）有限公司 turntable structure and robot

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR682253A (en) * 1929-09-24 1930-05-26 Improvements to parquet maintenance machines
DE640875C (en) * 1935-02-17 1937-01-14 Georg Bode Floor polisher with horizontally rotating plate brush
GB680307A (en) * 1950-06-13 1952-10-01 William Ernest Holt Improvements in machines for cleaning, polishing, or scrubbing floors
GB1115659A (en) * 1965-11-22 1968-05-29 Electrolux Ltd Coupling device for the working and the driving members of a floor polisher
US4138804A (en) * 1976-11-05 1979-02-13 Minnesota Mining And Manufacturing Company Machine head assembly and torque-transmitting device incorporated in the same
DE19728927A1 (en) * 1997-05-02 1998-11-05 Vorwerk Co Interholding Floor care equipment

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR682253A (en) * 1929-09-24 1930-05-26 Improvements to parquet maintenance machines
DE640875C (en) * 1935-02-17 1937-01-14 Georg Bode Floor polisher with horizontally rotating plate brush
GB680307A (en) * 1950-06-13 1952-10-01 William Ernest Holt Improvements in machines for cleaning, polishing, or scrubbing floors
GB1115659A (en) * 1965-11-22 1968-05-29 Electrolux Ltd Coupling device for the working and the driving members of a floor polisher
US4138804A (en) * 1976-11-05 1979-02-13 Minnesota Mining And Manufacturing Company Machine head assembly and torque-transmitting device incorporated in the same
DE19728927A1 (en) * 1997-05-02 1998-11-05 Vorwerk Co Interholding Floor care equipment

Also Published As

Publication number Publication date
DE10016404A1 (en) 2001-10-04
ATE340529T1 (en) 2006-10-15
DE50111068D1 (en) 2006-11-09
EP1138245B1 (en) 2006-09-27
ES2269244T3 (en) 2007-04-01
EP1138245A3 (en) 2005-02-02
HK1040602A1 (en) 2002-06-21

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