EP0702925A1 - Driving disk and floor treating machine - Google Patents

Driving disk and floor treating machine Download PDF

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Publication number
EP0702925A1
EP0702925A1 EP95401856A EP95401856A EP0702925A1 EP 0702925 A1 EP0702925 A1 EP 0702925A1 EP 95401856 A EP95401856 A EP 95401856A EP 95401856 A EP95401856 A EP 95401856A EP 0702925 A1 EP0702925 A1 EP 0702925A1
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EP
European Patent Office
Prior art keywords
diaphragm
drive
disc
tool
drive shaft
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Granted
Application number
EP95401856A
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German (de)
French (fr)
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EP0702925B1 (en
Inventor
Maurice Plazanet
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Individual
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Individual
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    • 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

Definitions

  • the present invention relates to a drive disc for the tool of a machine for preparing and / or maintaining floors.
  • machines for preparing and / or maintaining floors comprising a motor capable of driving in rotation at at least one rotary tool via a drive shaft at least substantially orthogonal to said tool, said tool being connected to said drive shaft by a drive disc connected, in the vicinity of its external periphery, to the tool and, in the vicinity of its center, at the drive shaft, 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.
  • document EP-A-0 388 273 describes such a drive disc comprising a circular diaphragm made of a non-elastic material which is flexible perpendicular to its plane, but which is rigid in its plane.
  • said diaphragm 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. She can be made of crossed fabrics of polyester fibers coated with polyvinyl chloride.
  • 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 diaphragm is flexible perpendicular to its plane, such a disc allows, in particular at start-up, a "decoupling" of the tool from the rest of the machine, facilitating the start-up of the tool, and the maintenance of the latter perfectly parallel to the soil to be treated, during treatment. In addition, this disc allows a distribution of forces or forces on the tool, which allows lateral movement of the machine.
  • the object of the present invention is to eliminate vibrations at reduced speed.
  • the drive disc intended for a machine for preparing and / or maintaining floors of the type comprising a motor capable of driving in rotation at least one rotary tool per l intermediate of a drive shaft, said drive disc comprising a rigid circular plate and a circular diaphragm, said circular diaphragm being connected, in the vicinity of its external periphery, to said rigid circular plate and, in the vicinity of its center, to the drive shaft, and being made of a material which is flexible perpendicular to its plane , but which is rigid in its plane, said tool being fixed on said rigid circular plate on the side opposite to said diaphragm, is remarkable in that the cavity formed between said rigid circular plate and said diaphragm is sealed and contains a fluid tending said diaphragm.
  • said fluid was advantageous for said fluid to be a liquid and for the density of said liquid to be higher the lower the nominal rotation speed of said disc.
  • said fluid which completely eliminates vibrations at 400 rpm, allowed certain vibrations to remain at 200 rpm, which were eliminated by replacing the water with glycerine.
  • the Applicant has also noted in this connection that, in addition to the density of the liquid, the quantity of liquid contained in said cavity was also a parameter for adjusting the elimination of vibrations at a given speed.
  • said connecting means allow easy mounting and / or dismounting of said drive disc on the machine shaft.
  • complementary connection means carried by said drive shaft to form a removable connection with wedging.
  • the rotary tool comprises, or is constituted by a disk of fibrous material
  • said rigid circular plate comprises, on its face opposite to said diaphragm, hooks for the attachment of said material disk fibrous.
  • Figure 1 is a diametrical sectional view of an embodiment of the drive disc according to the present invention.
  • Figure 2 is a top view of the disc of Figure 1.
  • Figure 3 is a sectional view similar to that of Figure 1, the motor drive shaft being in an inclined position relative to said tool.
  • the drive disc 1, according to the present invention and shown in Figures 1 to 3, is intended to be mounted on a machine for the preparation and / or maintenance of floors, this machine comprising a motor (not shown) capable of driving a rotary tool 2 via a drive shaft 3.
  • the drive disc 1 comprises a rigid circular plate 4 and a circular diaphragm 5.
  • This diaphragm is made of a flexible material perpendicular to its plane, but rigid in its plane, such as for example 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 crossed fabrics of polyester fibers coated with polyvinyl chloride.
  • the circular diaphragm 5 is made integral with said rigid plate 4, in leaktight manner, for example also thanks to an auxiliary membrane 9 applied against said rigid plate 4, in the vicinity of outer peripheries of said diaphragm and said rigid circular plate.
  • a female connecting flange 7 is provided to cooperate with a male flange 8 secured to the free end of the drive shaft 3.
  • this male flange 8 is shown in dotted lines, like the shaft 3 of which it is united.
  • the male and female flanges 7 and 8 form a lug connection by rotation and wedging.
  • a sealed cavity 10 In this sealed cavity 10, is contained a fluid, in particular a liquid capable of slightly stretching said diaphragm 5, as shown in FIG. 1.
  • the soil treatment machine is designed to drive the rotating disc at a nominal speed of 400 rpm, it is advantageous for said liquid to be water.
  • the diaphragm 5 remains slightly taut (see Figure 1) in the manner of a hot water bottle, while the inclination of the tool 2 relative to the shaft 3 is free, but damped, as shown in figure 3.
  • the rigid circular plate 4 has, on its face opposite the diaphragm 5, projecting hooks 11 capable of penetrating into the fibrous material of the tool 2.
  • the tool has a central recess 12 capable of cooperating with a projection 14 carried by the face of the rigid circular plate on which said hooks are provided. 11.

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  • Treatment Of Fiber Materials (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The machine has a drive disc (1) with a circular rigid plate (4) to which a circular diaphragm (5) is joined by its periphery. The centre of the diaphragm is joined to the shaft which turns the tool. The diaphragm is made in a material which is supple perpendicular to its plane. The tool is fixed to the opposite side of the plate by hooks (11) projecting from the disc that penetrate into its fibrous material. The cavity (10) between the plate and the diaphragm is airtight and contains a liquid which stretches the diaphragm.

Description

La présente invention concerne un disque d'entraînement pour l'outil d'une machine pour la mise en état et/ou l'entretien des sols.The present invention relates to a drive disc for the tool of a machine for preparing and / or maintaining floors.

On connaît déjà, notamment par les brevets GB-A-1 083 775 et US-A-3 464 075, des machines pour la mise en état et/ou l'entretien des sols, comportant un moteur susceptible d'entraîner en rotation au moins un outil rotatif par l'intermédiaire d'un arbre d'entraînement au moins sensiblement orthogonal audit outil, ledit outil étant relié audit arbre d'entraînement par un disque d'entraînement relié, au voisinage de sa périphérie externe, à l'outil et, au voisinage de son centre, à l'arbre d'entraînement, et permettant une inclinaison relative d'amplitude limitée de l'axe de rotation de l'outil par rapport audit arbre d'entraînement. Cependant, dans ces machines connues, ledit disque est réalisé en une matière élastique (métal ou caoutchouc), de sorte que le degré de liberté de l'outil parallèlement à l'axe de l'outil est limité par l'élasticité du disque et qu'il en résulte des défauts de coplanarité de l'outil par rapport au sol. Par suite, la surface traitée est attaquée irrégulièrement par ledit outil, de sorte qu'elle ne peut être parfaitement uniforme.Are already known, in particular from the patents GB-A-1 083 775 and US-A-3 464 075, machines for preparing and / or maintaining floors, comprising a motor capable of driving in rotation at at least one rotary tool via a drive shaft at least substantially orthogonal to said tool, said tool being connected to said drive shaft by a drive disc connected, in the vicinity of its external periphery, to the tool and, in the vicinity of its center, at the drive shaft, and allowing a relative inclination of limited amplitude of the axis of rotation of the tool relative to said drive shaft. However, in these known machines, 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.

Pour remédier à ces inconvénients, le document EP-A-0 388 273 décrit un tel disque d'entraînement comportant un diaphragme circulaire en une matière non élastique qui est souple perpendiculairement à son plan, mais qui est rigide dans son plan.To remedy these drawbacks, document EP-A-0 388 273 describes such a drive disc comprising a circular diaphragm made of a non-elastic material which is flexible perpendicular to its plane, but which is rigid in its plane.

Par exemple, ledit diaphragme est constitué d'une toile de matière synthétique rigide en cisaillement de rotation. Une telle toile peut par exemple être du type de celles utilisées pour la réalisation de bandes transporteuses. Elle peut être constituée de tissus croisés en fibres polyester enrobés de chlorure de polyvinyle.For example, said diaphragm consists of a canvas of rigid synthetic material in rotational shear. Such a fabric can for example be of the type used for the production of conveyor belts. She can be made of crossed fabrics of polyester fibers coated with polyvinyl chloride.

Ainsi, puisque la matière dudit diaphragme est rigide dans son plan, le disque peut transmettre le couple de l'arbre d'entraînement audit outil, de sorte que celui-ci est entraîné en rotation. Par ailleurs, puisque la matière du diaphragme est souple perpendiculairement à son plan, un tel disque permet, notamment au démarrage, un "découplage" de l'outil du restant de la machine, facilitant la mise en route de l'outil, et le maintien de ce dernier de façon parfaitement parallèle au sol à traiter, pendant le traitement. De plus, ce disque autorise une répartition d'efforts ou de forces sur l'outil, qui permet un déplacement latéral de la machine.Thus, since the material of said diaphragm 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 diaphragm is flexible perpendicular to its plane, such a disc allows, in particular at start-up, a "decoupling" of the tool from the rest of the machine, facilitating the start-up of the tool, and the maintenance of the latter perfectly parallel to the soil to be treated, during treatment. In addition, this disc allows a distribution of forces or forces on the tool, which allows lateral movement of the machine.

A l'usage, on s'est aperçu que, lorsqu'un tel disque était monté sur une machine communiquant audit disque, et donc à l'outil rotatif, une grande vitesse nominale de rotation, par exemple de l'ordre de 1000 t/mn, le fonctionnement du disque était parfait, sans effet secondaire. En revanche, lorsque le disque était monté sur une machine lui imposant une vitesse nominale réduite, par exemple 400 t/mn, il apparaissait des vibrations, désagréables pour l'opérateur se servant de ladite machine, bien que celle-ci effectue un excellent travail.In use, it has been observed that, when such a disc was mounted on a machine communicating with said disc, and therefore with the rotary tool, a high nominal speed of rotation, for example of the order of 1000 t / min, the operation of the disc was perfect, with no side effect. On the other hand, when the disc was mounted on a machine imposing a reduced nominal speed on it, for example 400 rpm, vibrations appeared, unpleasant for the operator using said machine, although the latter does an excellent job. .

La présente invention a pour objet d'éliminer les vibrations à vitesse réduite.The object of the present invention is to eliminate vibrations at reduced speed.

A cette fin, selon la présente invention, le disque d'entraînement destiné à une machine pour la mise en état et/ou l'entretien des sols, du type comportant un moteur susceptible d'entraîner en rotation au moins un outil rotatif par l'intermédiaire d'un arbre d'entraînement, ledit disque d'entraînement comportant une plaque circulaire rigide et un diaphragme circulaire, ledit diaphragme circulaire étant relié, au voisinage de sa périphérie externe, à ladite plaque circulaire rigide et, au voisinage de son centre, à l'arbre d'entraînement, et étant réalisé en une matière qui est souple perpendiculairement à son plan, mais qui est rigide dans son plan, ledit outil étant fixé sur ladite plaque circulaire rigide du côté opposé audit diaphragme, est remarquable en ce que la cavité formée entre ladite plaque circulaire rigide et ledit diaphragme est étanche et contient un fluide tendant ledit diaphragme.To this end, according to the present invention, the drive disc intended for a machine for preparing and / or maintaining floors, of the type comprising a motor capable of driving in rotation at least one rotary tool per l intermediate of a drive shaft, said drive disc comprising a rigid circular plate and a circular diaphragm, said circular diaphragm being connected, in the vicinity of its external periphery, to said rigid circular plate and, in the vicinity of its center, to the drive shaft, and being made of a material which is flexible perpendicular to its plane , but which is rigid in its plane, said tool being fixed on said rigid circular plate on the side opposite to said diaphragm, is remarkable in that the cavity formed between said rigid circular plate and said diaphragm is sealed and contains a fluid tending said diaphragm.

Le demandeur a en effet remarqué que, si le diaphragme était légèrement tendu, il en résultait l'élimination des vibrations à vitesse réduite, sans influence négative sur les propriétés dues à la nature particulière du diaphragme circulaire. Il a de plus constaté que le nouveau disque pouvait être utilisé avec satisfaction aussi bien à faible vitesse de rotation qu'à vitesse de rotation élevée.The Applicant has in fact noticed that, if the diaphragm was slightly tensioned, this resulted in the elimination of vibrations at reduced speed, without negative influence on the properties due to the particular nature of the circular diaphragm. He also found that the new disc could be used with satisfaction both at low speed and at high speed.

Bien que l'explication suivante ne soit qu'une hypothèse ne devant pas avoir d'influence sur la brevetabilité de la présente invention, le demandeur pense que le fluide contenu dans ladite cavité et tendant légèrement le diaphragme agit comme un amortisseur évitant les rebonds, à la manière du liquide contenu dans une bouillotte souple.Although the following explanation is only a hypothesis that should not influence the patentability of the present invention, the applicant believes that the fluid contained in said cavity and slightly stretching the diaphragm acts as a shock absorber preventing rebounds, like the liquid in a flexible hot water bottle.

D'ailleurs, le demandeur a remarqué qu'il était avantageux que ledit fluide soit un liquide et que la densité dudit liquide soit d'autant plus élevée que la vitesse de rotation nominale dudit disque est plus basse. Il a par exemple constaté que l'eau, qui élimine totalement les vibrations à 400 t/mn, laissait subsister certaines vibrations à 200 t/mn, qui étaient éliminées en remplaçant l'eau par de la glycérine.Moreover, the applicant has noticed that it was advantageous for said fluid to be a liquid and for the density of said liquid to be higher the lower the nominal rotation speed of said disc. He noted, for example, that water, which completely eliminates vibrations at 400 rpm, allowed certain vibrations to remain at 200 rpm, which were eliminated by replacing the water with glycerine.

Pour expliquer ce phénomène, le demandeur pense, sans que cela puisse constituer une condition de validité de la présente invention, que c'est l'action des forces centrifuges sur le liquide qui fixe la valeur de l'amortissement obtenu. Le demandeur a également remarqué à ce propos que, en plus de la densité du liquide, la quantité de liquide contenue dans ladite cavité était également un paramètre pour le réglage de l'élimination des vibrations à une vitesse donnée.To explain this phenomenon, the applicant thinks, without this constituting a condition of validity of the present invention, that it is the action of centrifugal forces on the liquid which fixes the value of the damping obtained. The Applicant has also noted in this connection that, in addition to the density of the liquid, the quantity of liquid contained in said cavity was also a parameter for adjusting the elimination of vibrations at a given speed.

Il peut donc être judicieux de plus ou moins remplir ladite cavité, en fonction de la vitesse de rotation de l'outil et de la densité dudit liquide.It may therefore be advisable to more or less fill said cavity, depending on the speed of rotation of the tool and the density of said liquid.

Par ailleurs, les moyens de liaison du disque audit arbre d'entraînement étant portés par le diaphragme, il est nécessaire que lesdits moyens de liaison soient montés de façon étanche sur la partie centrale de celui-ci.Furthermore, the means for connecting the disc to said drive shaft being carried by the diaphragm, it is necessary for said connecting means to be mounted in leaktight manner on the central part of the latter.

De préférence, lesdits moyens de liaison permettent un montage et/ou un démontage aisé dudit disque d'entraînement sur l'arbre de la machine. A cet effet, on peut prévoir des moyens de liaison complémentaires portés par ledit arbre d'entraînement pour former une liaison amovible à coincement.Preferably, said connecting means allow easy mounting and / or dismounting of said drive disc on the machine shaft. To this end, it is possible to provide complementary connection means carried by said drive shaft to form a removable connection with wedging.

Lorsque, de façon connue, l'outil rotatif comporte, ou bien est constitué par un disque de matière fibreuse, il est avantageux que ladite plaque circulaire rigide comporte, sur sa face opposée audit diaphragme, des crochets pour l'accrochage dudit disque de matière fibreuse. Un tel système d'accrochage et de fixation est avantageusement du type décrit dans le brevet EP-A-0 347 302.When, in known manner, the rotary tool comprises, or is constituted by a disk of fibrous material, it is advantageous that said rigid circular plate comprises, on its face opposite to said diaphragm, hooks for the attachment of said material disk fibrous. Such an attachment and fixing system is advantageously of the type described in patent EP-A-0 347 302.

Les figures du dessin annexé feront bien comprendre comment l'invention peut être réalisée. Sur ces figures, des références identiques désignent des éléments semblables.The figures of the appended drawing will make it clear how the invention can be implemented. In these figures, identical references designate similar elements.

La figure 1 est une vue en coupe diamétrale d'un exemple de réalisation du disque d'entraînement conforme à la présente invention.Figure 1 is a diametrical sectional view of an embodiment of the drive disc according to the present invention.

La figure 2 est une vue de dessus du disque de la figure 1.Figure 2 is a top view of the disc of Figure 1.

La figure 3 est une vue en coupe semblable à celle de la figure 1, l'arbre d'entraînement du moteur étant dans une position inclinée par rapport audit outil.Figure 3 is a sectional view similar to that of Figure 1, the motor drive shaft being in an inclined position relative to said tool.

Le disque d'entraînement 1, conforme à la présente invention et représenté sur les figures 1 à 3, est destiné à être monté sur une machine pour la mise en état et/ou l'entretien des sols, cette machine comportant un moteur (non représenté) susceptible d'entraîner un outil rotatif 2 par l'intermédiaire d'un arbre d'entraînement 3.The drive disc 1, according to the present invention and shown in Figures 1 to 3, is intended to be mounted on a machine for the preparation and / or maintenance of floors, this machine comprising a motor (not shown) capable of driving a rotary tool 2 via a drive shaft 3.

Sur les figures 1 et 3, on a supposé que l'outil rotatif était un disque de matière fibreuse et l'arbre d'entraînement 3 a été représenté seulement en pointillés.In FIGS. 1 and 3, it has been assumed that the rotary tool is a disc of fibrous material and the drive shaft 3 has been shown only in dotted lines.

Comme on peut le voir sur les figures 1 et 3, le disque d'entraînement 1 comporte une plaque circulaire rigide 4 et un diaphragme circulaire 5. Ce diaphragme est réalisé en une matière souple perpendiculaire à son plan, mais rigide dans son plan, telle que par exemple une toile de matière synthétique rigide en cisaillement de rotation. Une telle toile peut par exemple être du type de celles utilisées pour la réalisation de bandes transporteuses. Elle peut être constituée de tissus croisés en fibres polyester enrobées de chlorure de polyvinyle.As can be seen in Figures 1 and 3, the drive disc 1 comprises a rigid circular plate 4 and a circular diaphragm 5. This diaphragm is made of a flexible material perpendicular to its plane, but rigid in its plane, such as for example a canvas of rigid synthetic material in rotational shear. Such a fabric can for example be of the type used for the production of conveyor belts. It can be made of crossed fabrics of polyester fibers coated with polyvinyl chloride.

Par l'intermédiaire de brides 6 et de moyens de fixation 6A, le diaphragme circulaire 5 est rendu solidaire de ladite plaque rigide 4, de façon étanche, par exemple grâce également à une membrane auxiliaire 9 appliquée contre ladite plaque rigide 4, au voisinage des périphéries externes dudit diaphragme et de ladite plaque circulaire rigide.By means of flanges 6 and fixing means 6A, the circular diaphragm 5 is made integral with said rigid plate 4, in leaktight manner, for example also thanks to an auxiliary membrane 9 applied against said rigid plate 4, in the vicinity of outer peripheries of said diaphragm and said rigid circular plate.

Par ailleurs, au centre du diaphragme 5, est montée sur celui-ci, de façon étanche, une bride de liaison femelle 7 par l'intermédiaire de moyens de fixation 7A. Cette bride femelle 7 est prévue pour coopérer avec une bride mâle 8 solidaire de l'extrémité libre de l'arbre d'entraînement 3. Sur les figures 1 et 3, cette bride mâle 8 est représentée en pointillés, comme l'arbre 3 duquel elle est solidaire.Furthermore, in the center of the diaphragm 5, is mounted thereon, in a sealed manner, a female connecting flange 7 by means of fixing means 7A. This female flange 7 is provided to cooperate with a male flange 8 secured to the free end of the drive shaft 3. In FIGS. 1 and 3, this male flange 8 is shown in dotted lines, like the shaft 3 of which it is united.

Comme cela est illustré notamment sur la figure 2, les brides mâle et femelle 7 et 8 forment une liaison à ergots par rotation et coincement.As illustrated in particular in Figure 2, the male and female flanges 7 and 8 form a lug connection by rotation and wedging.

Ainsi, puisque la liaison périphérique entre le diaphragme 5 et la plaque 4 est réalisée de manière étanche et que la bride 7 est montée étanche sur le diaphragme 5, il en résulte que, entre le diaphragme 5 et la plaque circulaire rigide 4, est formée une cavité étanche 10. Conformément à la présente invention, dans cette cavité étanche 10, est contenu un fluide, notamment un liquide susceptible de tendre légèrement ledit diaphragme 5, comme cela est représenté sur la figure 1.Thus, since the peripheral connection between the diaphragm 5 and the plate 4 is made in a sealed manner and the flange 7 is mounted sealed on the diaphragm 5, it follows that, between the diaphragm 5 and the rigid circular plate 4, is formed a sealed cavity 10. According to the present invention, in this sealed cavity 10, is contained a fluid, in particular a liquid capable of slightly stretching said diaphragm 5, as shown in FIG. 1.

Si la machine de traitement de sols est prévue pour entraîner le disque rotatif à une vitesse nominale de 400 t/mn, il est avantageux que ledit liquide soit de l'eau. Ainsi, au repos, le diaphragme 5 reste légèrement tendu (voir la figure 1) à la manière d'une bouillotte, alors que l'inclinaison de l'outil 2 par rapport à l'arbre 3 est libre, mais amortie, comme représenté sur la figure 3.If the soil treatment machine is designed to drive the rotating disc at a nominal speed of 400 rpm, it is advantageous for said liquid to be water. Thus, at rest, the diaphragm 5 remains slightly taut (see Figure 1) in the manner of a hot water bottle, while the inclination of the tool 2 relative to the shaft 3 is free, but damped, as shown in figure 3.

Pour fixer l'outil fibreux 2 au disque d'entraînement 1, la plaque circulaire rigide 4 comporte, sur sa face opposée au diaphragme 5, des crochets saillants 11 susceptibles de pénétrer dans la matière fibreuse de l'outil 2.To fix the fibrous tool 2 to the drive disc 1, the rigid circular plate 4 has, on its face opposite the diaphragm 5, projecting hooks 11 capable of penetrating into the fibrous material of the tool 2.

Pour faciliter la mise en place de l'outil fibreux 2 sur le disque d'entraînement 1, l'outil comporte un évidement central 12 susceptible de coopérer avec une saillie 14 portée par la face de la plaque circulaire rigide sur laquelle sont prévus lesdits crochets 11.To facilitate the positioning of the fibrous tool 2 on the drive disc 1, the tool has a central recess 12 capable of cooperating with a projection 14 carried by the face of the rigid circular plate on which said hooks are provided. 11.

Claims (8)

Disque d'entraînement (1) destiné à une machine pour la mise en état et/ou l'entretien des sols, du type comportant un moteur susceptible d'entraîner en rotation au moins un outil rotatif (2) par l'intermédiaire d'un arbre d'entraînement (3), ledit disque d'entraînement (1) comportant une plaque circulaire rigide (4) et un diaphragme circulaire (5), ledit diaphragme circulaire (5) étant relié, au voisinage de sa périphérie externe, à ladite plaque circulaire rigide (4) et, au voisinage de son centre, à l'arbre d'entraînement (3), et étant réalisé en une matière qui est souple perpendiculairement à son plan, mais qui est rigide dans son plan, ledit outil (2) étant fixé sur ladite plaque circulaire rigide (4) du côté opposé audit diaphragme (5),
caractérisé en ce que la cavité (10) formée entre ladite plaque circulaire rigide (4) et ledit diaphragme (5) est étanche et contient un fluide tendant ledit diaphragme (5).Drive disc (1) intended for a machine for preparing and / or maintaining floors, of the type comprising a motor capable of rotating at least one rotary tool (2) by means of a drive shaft (3), said drive disc (1) comprising a rigid circular plate (4) and a circular diaphragm (5), said circular diaphragm (5) being connected, in the vicinity of its external periphery, to said rigid circular plate (4) and, near its center, to the drive shaft (3), and being made of a material which is flexible perpendicular to its plane, but which is rigid in its plane, said tool (2) being fixed on said rigid circular plate (4) on the side opposite to said diaphragm (5),
characterized in that the cavity (10) formed between said rigid circular plate (4) and said diaphragm (5) is sealed and contains a fluid tending said diaphragm (5). Disque d'entraînement selon la revendication 1,
caractérisé en ce que ledit fluide contenu dans ladite cavité est un liquide.Drive disc according to claim 1,
characterized in that said fluid contained in said cavity is a liquid. Disque d'entraînement selon la revendication 2,
caractérisé en ce que la densité dudit liquide est d'autant plus élevée que la vitesse de rotation nominale dudit disque est plus basse.Drive disc according to claim 2,
characterized in that the density of said liquid is higher the lower the nominal speed of rotation of said disc. Disque d'entraînement selon l'une des revendications 2 ou 3, dont la vitesse nominale de rotation est de l'ordre de 400 t/mn,
caractérisé en ce que ledit liquide est de l'eau.Drive disc according to one of Claims 2 or 3, the nominal rotation speed of which is around 400 rpm,
characterized in that said liquid is water. Disque d'entraînement selon l'une quelconque des revendications 1 à 4, comportant des moyens (7) de liaison audit arbre d'entraînement,
caractérisé en ce que lesdits moyens de liaison (7) sont montés de façon étanche dans la partie centrale dudit diaphragme (5).Drive disc according to any one of Claims 1 to 4, comprising means (7) for connection to said drive shaft,
characterized in that said connecting means (7) are sealingly mounted in the central part of said diaphragm (5). Disque d'entraînement selon la revendication 5,
caractérisé en ce que lesdits moyens de liaison (7) permettent un montage et/ou un démontage aisé dudit disque (1) sur ledit arbre d'entraînement (3).Drive disc according to claim 5,
characterized in that said connecting means (7) allow easy mounting and / or disassembly of said disc (1) on said drive shaft (3). Disque d'entraînement selon la revendication 6,
caractérisé en ce que lesdits moyens de liaison (7) coopèrent avec des moyens de liaison complémentaires (8) portés par ledit arbre d'entraînement (3) pour former une liaison amovible à coincement.Drive disc according to claim 6,
characterized in that said connecting means (7) cooperate with complementary connecting means (8) carried by said drive shaft (3) to form a removable wedging connection. Disque d'entraînement selon l'une quelconque des revendications 1 à 7, destiné à entraîner en rotation un outil rotatif (2) comportant un disque de matière fibreuse,
caractérisé en ce que ladite plaque circulaire rigide (4) comporte, sur sa face opposée audit diaphragme (5), des crochets (11) pour l'accrochage dudit disque de matière fibreuse.Drive disc according to any one of Claims 1 to 7, intended to drive in rotation a rotary tool (2) comprising a disc of fibrous material,
characterized in that said rigid circular plate (4) comprises, on its face opposite to said diaphragm (5), hooks (11) for the attachment of said disc of fibrous material.
EP95401856A 1994-08-25 1995-08-08 Driving disk and floor treating machine Expired - Lifetime EP0702925B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9410279 1994-08-25
FR9410279A FR2723831B1 (en) 1994-08-25 1994-08-25 DRIVE DISC FOR THE TOOL OF A MACHINE FOR CONDITIONING AND / OR MAINTENANCE OF FLOORS

Publications (2)

Publication Number Publication Date
EP0702925A1 true EP0702925A1 (en) 1996-03-27
EP0702925B1 EP0702925B1 (en) 1998-07-15

Family

ID=9466485

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95401856A Expired - Lifetime EP0702925B1 (en) 1994-08-25 1995-08-08 Driving disk and floor treating machine

Country Status (4)

Country Link
US (1) US5579554A (en)
EP (1) EP0702925B1 (en)
DE (1) DE69503447T2 (en)
FR (1) FR2723831B1 (en)

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US7033258B2 (en) * 2003-09-05 2006-04-25 Lite-Prep Surface Preparation Equipment, Llc Floor resurfacing disks for rotary floor resurfacing machines
GB2413264B (en) * 2004-04-23 2007-07-18 Numatic Int Ltd Floor treatment machine, flexible diaphragm member for a floor treatment machine, working head assembly for a floor treatment machine and a method of improvin
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DE102017117520A1 (en) * 2017-08-02 2019-02-07 Vorwerk & Co. Interholding Gmbh Cleaning device with a motor driven vibration plate
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Also Published As

Publication number Publication date
US5579554A (en) 1996-12-03
FR2723831B1 (en) 1996-10-25
DE69503447T2 (en) 1998-11-26
FR2723831A1 (en) 1996-03-01
DE69503447D1 (en) 1998-08-20
EP0702925B1 (en) 1998-07-15

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