EP0388273B1 - Maschine und Antriebsscheibe zum Behandeln von Fussböden - Google Patents

Maschine und Antriebsscheibe zum Behandeln von Fussböden Download PDF

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Publication number
EP0388273B1
EP0388273B1 EP90400649A EP90400649A EP0388273B1 EP 0388273 B1 EP0388273 B1 EP 0388273B1 EP 90400649 A EP90400649 A EP 90400649A EP 90400649 A EP90400649 A EP 90400649A EP 0388273 B1 EP0388273 B1 EP 0388273B1
Authority
EP
European Patent Office
Prior art keywords
tool
drive shaft
disc
axis
drive
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.)
Expired - Lifetime
Application number
EP90400649A
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English (en)
French (fr)
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EP0388273A1 (de
Inventor
Maurice Plazanet
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Individual
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Individual
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Filing date
Publication date
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Publication of EP0388273A1 publication Critical patent/EP0388273A1/de
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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
    • A47L11/40—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
    • A47L11/02—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
    • A47L11/164—Parts or details of the brushing 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
    • A47L11/4052—Movement of the tools or the like perpendicular to the cleaning surface
    • A47L11/4058—Movement of the tools or the like perpendicular to the cleaning surface for adjusting the height of the tool
    • 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 present invention relates to a machine for preparing and / or maintaining surfaces, and more particularly floors.
  • Such a machine comprising a motor capable of driving in rotation at least one rotary tool by means of a shaft at least substantially orthogonal to said tool, said tool being connected to said drive shaft by a drive disc connected, near its external periphery, to the tool and, near its center, to the shaft drive, and allowing a relative inclination of limited amplitude of the axis of rotation of the tool relative to said drive shaft.
  • said disc is made of an elastic material (metal or rubber), so that the degree of freedom of the tool parallel to the axis of the tool is limited by the elasticity of the disc and that this results in defects in the coplanarity of the tool with respect to the ground. As a result, the treated surface is irregularly attacked by said tool, so that it cannot be perfectly uniform.
  • the present invention aims to improve a machine of the type defined above.
  • said drive disc is made of a material which is flexible perpendicularly to its plane, but which is rigid in its plane and in that said drive disc is mounted, between said tool and said drive shaft, so as to form at least one ripple radially around said axis of the tool when the machine rests on said tool and the axis of said tool is coaxial with that of said drive shaft.
  • the disc Since the material of said drive disc is rigid in its plane, the disc can transmit the torque from the drive shaft to said tool, so that the latter is rotated. Furthermore, since the material of the drive disc is flexible perpendicular to its plane, the undulation or undulations constitute an excess of material parallel to the axis of the tool.
  • such a connecting member allows, in particular at startup, a "decoupling" of the tool from the rest of the machine, facilitating the start-up of the tool, and the maintenance of the latter in a manner perfectly parallel to the ground at treat, during treatment.
  • the connecting member as defined above, allows a distribution of forces or forces on the tool, which allows lateral movement of the machine.
  • said drive disc consists of a canvas of rigid synthetic material in rotational shear.
  • a fabric can for example be of the type used for the production of conveyor belts. It can be made of crossover fabrics made of polyester fibers coated with polyvinyl chloride.
  • the machine drive shaft is mounted on a universal joint and that a linkage acting on the universal joint is provided for control the relative inclination between the drive shaft and the axis of rotation of the tool.
  • the machine comprises specific means for exerting local pressure on said tool in the direction of the ground.
  • said specific pressure means comprise a disc-shaped part having a rim at its external periphery, facing towards said drive disc and capable of being applied locally to the latter by a portion of its perimeter.
  • Said specific pressure means may, as a variant, comprise a disc-shaped part, the face of which facing the disc has, in cross section, a convex profile. This convex profile makes it possible to radially vary the point of application of said pressure means on the drive disc, so as to increase or decrease the speed of lateral movement of the machine.
  • said pressure disc may have a hollow shaft through which the drive shaft passes.
  • said hollow shaft can be mounted, by means of a bearing, in a ring integral with a control linkage.
  • said linkage comprises a first connecting rod extending along a handlebar, articulated to a second connecting rod in the general shape of a fork.
  • said second connecting rod has two branches, the respective free ends of which are articulated on either side of the pressure means.
  • the invention relates to a drive disc according to claim 12.
  • Figure 1 is a partial longitudinal sectional view of a first embodiment of a machine according to the invention.
  • Figure 2 is a view similar to Figure 1, in which the machine motor drive shaft is in an inclined position relative to the axis of rotation of the tool.
  • FIG. 3 illustrates the distribution of the application forces of the tool on the ground, when the machine is in the position shown in FIG. 2.
  • Figure 4 is a top view of an exemplary embodiment of the drive disc.
  • Figure 5 is a partial view, in particular without chassis or motor, in longitudinal section of a second embodiment of a machine according to the invention, the motor drive shaft of which is mounted on a gasket the Cardan.
  • Figure 6 is a view similar to Figure 5, in which the drive shaft is in an inclined position relative to the axis of rotation of the tool.
  • Figure 7 illustrates the relative positions of the tool and the rest of the machine at start-up.
  • Figure 8 is a partial longitudinal sectional view of a third embodiment of the machine according to the invention.
  • FIG. 9 is a front view in partial section of the machine according to FIG. 8.
  • FIG. 10 is a top view, partially broken away, of the machine of FIG. 8.
  • Figure 11 shows an enlarged detail of Figure 8.
  • FIG. 12 is a view in partial longitudinal section of a variant of the third embodiment of the machine according to the invention, illustrated by FIGS. 8 to 11.
  • Figure 13 is a view similar to Figure 12, showing the application of specific pressure means on the connecting member.
  • the machine 1 of the invention in which the machine is devoid of rolling means, comprises a frame 2 on which is mounted a motor 3, connected to a handle 4 allowing the operator to maneuver the machine.
  • the handle 4 can be equipped with handles and control members (not shown).
  • the motor 3 is capable of driving in rotation a rotary tool 5 which can be, for example, equipped with a brush 6, or any other suitable means such as a grinding wheel, a pad made of fibrous or abrasive material for conditioning, cleaning and / or maintenance of a floor G, and this by means of a drive shaft 7, rotating around the axis 8, at least substantially orthogonal to the tool 5.
  • a rotary tool 5 which can be, for example, equipped with a brush 6, or any other suitable means such as a grinding wheel, a pad made of fibrous or abrasive material for conditioning, cleaning and / or maintenance of a floor G, and this by means of a drive shaft 7, rotating around the axis 8, at least substantially orthogonal to the tool 5.
  • the tool 5 is connected to the drive shaft 7 by a drive disc 9 made of a material which is flexible perpendicular to its plane, but which is rigid in its plane.
  • the drive disc 9 is connected, in the vicinity of its external periphery, to the tool 5, by suitable fixing means 10, such as rivets, bolts or the like, and, in the vicinity of its center, to a flange 7A integral with the drive shaft 7, also by suitable fixing means 11, such as rivets, bolts or the like.
  • the drive disc 9 which may consist of a canvas of rigid synthetic material in rotational shear, is mounted so as to form radially at least one corrugation 9A around the axis 12 of the tool 5, when the said machine rests on the said tool and the axis 12 thereof is coaxial with the axis 8 of the drive shaft 7.
  • the drive disc 9 which may consist of a canvas of rigid synthetic material in rotational shear, is mounted so as to form radially at least one corrugation 9A around the axis 12 of the tool 5, when the said machine rests on the said tool and the axis 12 thereof is coaxial with the axis 8 of the drive shaft 7.
  • Such a corrugated disc 9 allows, at startup, a "decoupling" of the tool from the rest of the machine by lifting it, facilitating the rotation of the tool, and the maintenance of the tool. perfectly parallel to the soil to be treated.
  • the drive disc 9, thus mounted further allows a relative inclination between the axis of rotation 12 of the tool 5 and the drive shaft 7, which, associated with the characteristics above indicated of the disc 9, when the collar 7A locally presses the tool 5 against the ground G, a distribution of forces or forces F on the tool 5, as shown in FIG. 3 , allowing in combination with the rotation of said tool a spontaneous lateral movement of the machine (in FIG. 3, the length of the arrows F is proportional to the intensity of the forces applied).
  • the direction of this spontaneous lateral movement depends on the position of the point 7B around the axis 12. It is therefore possible to move the machine 1, without effort, in any desired direction, by choosing the point of application 7B of the local pressure.
  • FIGS. 6 to 7 generally comprises the same elements, or similar elements, as the machine in FIGS. 1 and 2, in particular the drive disc 9 connecting the tool 5 to the drive shaft 7, and, in addition, rolling means not shown.
  • the drive shaft 7 is mounted on a universal joint 14, connected to the chassis 2, the role of which is to ensure an even better parallelism of the tool with respect to the ground.
  • the inclination of the joint to the gimbal 14 and, thus, of the drive shaft 7, relative to the axis of rotation 12 of the tool 5, is controlled by a linkage 15.
  • a flexible crown 16 guarantees the sealing between the drive shaft 7 and the tool 5.
  • the machine 1 again comprises a frame 2, on which is mounted a motor 3, connected to a handle 4 equipped with handles 4a and control members 4b.
  • the machine 1 is provided with rolling means bearing the reference 40, comprising two wheels arranged at the rear of the machine.
  • the motor 3 is capable of driving in rotation a rotary tool 5, provided with a brush 6 or the like, by means of a drive shaft 7, rotating around the axis 8 orthogonal to the tool 5.
  • the shaft of the motor 3 with an axis of rotation 20 carries, at its free end, a pulley 21 connected to a pulley 22, carried by the drive shaft 7, by a belt 23.
  • the tool 5 is connected to the drive shaft 7 by a drive disc 9 having the characteristics already described.
  • the disc 9 can be produced in the form of a canvas (as shown).
  • the drive disc 9 is connected, in the vicinity of its external periphery, to the tool 5, and, in the vicinity of its center, to the drive shaft 7, by suitable fixing means 10 and 11, respectively .
  • specific means 24 are provided for exerting local pressure on the drive disc 9, making it possible to reinforce the effect of lateral displacement, means 24 which are actuated by a linkage 25 whose free end 25a is fixed to the handle 4 in the vicinity of the handles 4a, for its control by the operator.
  • these means 24 comprise a disc-shaped part 26 having a flange 27 at its outer periphery, facing the drive disc 9 and intended to be applied to the latter by a portion of its perimeter, at any point of the drive disc 9 around the drive shaft 7, the application taking place in the vicinity of said drive shaft 7.
  • the disc 26 In its center, the disc 26 has a hollow shaft 28 crossed by the shaft 7 connected to the pulley 22.
  • the hollow shaft 28 is mounted, by means of a bearing 29, in a ring 30 integral with the linkage 25.
  • the linkage 25 comprises a first connecting rod 31 extending along the handle 4, articulated at 32 to a second connecting rod in the general shape of a fork 33 having two branches 33a, 33b whose respective free ends are articulated on either side of the pressure means 24 for controlling the inclination of the latter.
  • the variant embodiment of the machine in FIGS. 12 and 13 generally comprises the same elements constitutive as the machine shown in Figures 8 to 11.
  • the specific means 24 for exerting local pressure on the drive disc 9 have a somewhat different structure.
  • these means 24 also comprise a part 26 in the form of a disc but whose face 50 facing the drive disc 9 has, in cross section, a convex profile, so as to vary the point radially. applying said pressure means 24 to the drive disc 9, thereby making it possible to increase or decrease the lateral speed of the machine.
  • This variation of the point of application is obtained by rotating the handle 4 around the joint 51, as illustrated by the double arrow 52.
  • the pressure disc 26 has, at its center, a hollow shaft 28 crossed by the shaft 7 connected to the pulley 22.
  • the hollow shaft 28 is mounted, by means of 'A bearing 29, in a ring 30 integral with the linkage 25.
  • FIGS. 1, 2 and 5 to 8 By comparing FIGS. 1, 2 and 5 to 8, on the one hand, and FIGS. 11 to 13, on the other hand, it can be noted that, depending on whether the tool 5 includes or not a central recess 5A and that the flange 7A penetrates or not inside said central recess 5A, the corrugation (s) 9A formed by the excess material of the drive disc 9 are formed at radially different places.

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Automatic Disk Changers (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Control Of Vending Devices And Auxiliary Devices For Vending Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Soil Working Implements (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Claims (12)

  1. Maschine zum Behandeln von Fußböden, mit einem Motor, der zumindest ein drehbares Werkzeug mittels einer zu dem Werkzeug wenigstens nahezu rechtwinklig verlaufenden Antriebswelle rotierend antreiben kann, wobei das Werkzeug mit der Antriebswelle über eine Scheibe (9) verbunden ist, welche mit dem Werkzeug (5) in der Nähe ihres äußeren Umfangs und mit der Antriebswelle (7) in der Nähe ihres Zentrums verbunden ist und eine relative Neigung der Drehachse des Werkzeugs von begrenzter Amplitude gegenüber der Antriebswelle zuläßt, wobei die Antriebsscheibe (9) aus einem Material besteht, das in seiner Ebene starr ist, dadurch gekennzeichnet, daß das Material senkrecht zu seiner Ebene weich ist, und daß die Antriebsscheibe (9) zwischen dem Werkzeug (5) und der Antriebswelle (7) so angebracht ist, daß diese in radialer Richtung wenigstens eine Wellenform um die Werkzeugachse herum bildet, wenn die Maschine (1) auf dem Werkzeug (5) ruht und die Achse (12) des Werkzeugs mit der Achse (8) der Antriebswelle (7) koaxial ist, so daß die Wellenform aus weichem Material zwischen der Antriebswelle und dem Werkzeug eine lose Verbindung parallel zur Achse des Werkzeugs bildet.
  2. Maschine nach Anspruch 1, dadurch gekennzeichnet, daß die Antriebsscheibe (9) aus einem synthetischen Gewebematerial besteht.
  3. Maschine nach einem der Ansprüche 1 oder 2, in welcher die Antriebsscheibe (9) in der Nähe ihres Zentrums mit einem mit der Antriebsachse (7) fest verbundenen Kragen (7A) fest verbunden ist, dadurch gekennzeichnet, daß durch eine Neigung der Achse (8) der Antriebswelle (7) gegenüber der Drehachse (12) des Werkzeugs (5) der äußere Umfang des Kragens (7a) das Werkzeug (5) örtlich gegen den Fußboden drücken kann.
  4. Maschine nach einem der Ansprüche 1 bis 3, in welcher die Antriebswelle auf einem Kardangelenk angebracht ist, dadurch gekennzeichnet, daß sie ein Gestänge (15) umfaßt, das auf das Kardangelenk (14) wirkt, um die Winkelstellung der Antriebswelle (7) bezüglich der Drehachse (12) des Werkzeugs (5) zu steuern.
  5. Maschine nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie spezielle Mittel (24) zum Ausüben eines örtlichen Druckes auf däs Werkzeug (5) in Richtung zum Fußboden an einem Punkt des Werkzeugs nahe seiner Drehachse (12) umfaßt.
  6. Maschine nach Anspruch 5, dadurch gekennzeichnet, daß die speziellen Druckmittel (24) ein scheibenförmiges Teil (26) umfassen, das einen Rand (27) an seinem äußeren Umfang aufweist, der zur Antriebsscheibe (9) hin umgebogen ist und sich mit einem Abschnitt seines Umfangskreises örtlich auf die letztere auflegen kann.
  7. Maschine nach Anspruch 5, dadurch gekennzeichnet, daß die speziellen Druckmittel (24) ein scheibenförmiges Teil (26) umfassen, dessen der Antriebsscheibe (9) zugewendete Fläche (50) im Querschnitt ein konvexes Profil aufweist.
  8. Maschine nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Druckscheibe (26) in ihrem Zentrum eine von der Antriebswelle (7) durchdrungene Hohlwelle (28) aufweist.
  9. Maschine nach Anspruch 8, dadurch gekennzeichnet, daß die Hohlwelle (28) mittels eines Lagers (29) in einem mit einem Steuergestänge (25) verbundenen Ring (30) angebracht ist.
  10. Maschine nach Anspruch 9, dadurch gekennzeichnet, daß das Gestänge (25) ein erstes, sich entlang einer Griffstange (4) erstreckendes Zwischenglied (31) umfaßt, das an ein zweites, allgemein gabelförmiges Zwischenglied (33) angelenkt ist.
  11. Maschine nach Anspruch 10, dadurch gekennzeichnet, daß das zweite Zwischenglied (33) zwei Arme (33a, 33b) aufweist, deren jeweilige freie Enden beiderseits der Druckmittel (24) angelenkt sind.
  12. Antriebsscheibe (9) für eine Maschine zum Behandeln von Fußböden, welche einen Motor aufweist, der zumindest ein drehbares Werkzeug mittels einer zu dem Werkzeug wenigstens nahezu rechtwinklig verlaufenden Antriebswelle rotierend antreiben kann, wobei das Werkzeug mit der Antriebswelle über die Antriebsscheibe (9) verbunden ist, welche mit dem Werkzeug (5) in der Nähe ihres äußeren Umfangs und mit der Antriebswelle (7) in der Nähe ihres Zentrums verbunden ist und eine relative Neigung der Drehachse des Werkzeugs von begrenzter Amplitude gegenüber der Antriebswelle zuläßt, dadurch gekennzeichnet, daß die Antriebsscheibe (9) aus einem Material gefertigt ist, das rechtwinklig zu seiner Ebene weich, in seiner Ebene aber starr ist.
EP90400649A 1989-03-17 1990-03-12 Maschine und Antriebsscheibe zum Behandeln von Fussböden Expired - Lifetime EP0388273B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8903546A FR2644370B1 (fr) 1989-03-17 1989-03-17 Machine pour la mise en etat et/ou l'entretien des sols pourvue d'un outil rotatif
FR8903546 1989-03-17

Publications (2)

Publication Number Publication Date
EP0388273A1 EP0388273A1 (de) 1990-09-19
EP0388273B1 true EP0388273B1 (de) 1994-06-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP90400649A Expired - Lifetime EP0388273B1 (de) 1989-03-17 1990-03-12 Maschine und Antriebsscheibe zum Behandeln von Fussböden

Country Status (10)

Country Link
US (1) US5058229A (de)
EP (1) EP0388273B1 (de)
JP (1) JPH02279127A (de)
AT (1) ATE107148T1 (de)
AU (1) AU621991B2 (de)
DE (1) DE69009810T2 (de)
DK (1) DK0388273T3 (de)
ES (1) ES2057463T3 (de)
FR (1) FR2644370B1 (de)
ZA (1) ZA901911B (de)

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Also Published As

Publication number Publication date
AU621991B2 (en) 1992-03-26
DE69009810T2 (de) 1994-10-20
US5058229A (en) 1991-10-22
EP0388273A1 (de) 1990-09-19
AU5071590A (en) 1990-09-20
FR2644370B1 (fr) 1992-04-30
DE69009810D1 (de) 1994-07-21
JPH02279127A (ja) 1990-11-15
FR2644370A1 (fr) 1990-09-21
DK0388273T3 (da) 1994-10-03
ES2057463T3 (es) 1994-10-16
ATE107148T1 (de) 1994-07-15
ZA901911B (en) 1991-03-27

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