EP0922535B1 - Tool for abrasive treatment of surfaces - Google Patents

Tool for abrasive treatment of surfaces Download PDF

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Publication number
EP0922535B1
EP0922535B1 EP97121899A EP97121899A EP0922535B1 EP 0922535 B1 EP0922535 B1 EP 0922535B1 EP 97121899 A EP97121899 A EP 97121899A EP 97121899 A EP97121899 A EP 97121899A EP 0922535 B1 EP0922535 B1 EP 0922535B1
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EP
European Patent Office
Prior art keywords
grinding
tool
flaps
edges
tool according
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
EP97121899A
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German (de)
French (fr)
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EP0922535A1 (en
Inventor
Josef Vogel
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Botech AG Gesellschaft fur Beratung und Oberflachentechnik
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Botech AG Gesellschaft fur Beratung und Oberflachentechnik
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Application filed by Botech AG Gesellschaft fur Beratung und Oberflachentechnik filed Critical Botech AG Gesellschaft fur Beratung und Oberflachentechnik
Priority to ES97121899T priority Critical patent/ES2175253T3/en
Priority to AT97121899T priority patent/ATE215871T1/en
Priority to DK97121899T priority patent/DK0922535T3/en
Priority to PT97121899T priority patent/PT922535E/en
Priority to EP97121899A priority patent/EP0922535B1/en
Priority to DE59706987T priority patent/DE59706987D1/en
Publication of EP0922535A1 publication Critical patent/EP0922535A1/en
Application granted granted Critical
Publication of EP0922535B1 publication Critical patent/EP0922535B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/14—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face
    • B24D13/16—Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by the front face comprising pleated flaps or strips

Definitions

  • the present application relates to a tool according to the Preamble of claim 1.
  • Disc grinding tools known. With these tools is the tool axis of rotation perpendicular to the machining surface aligned and the tool points to its the Machining area facing side circular respectively. ring-shaped abrasives. The grinding tool is then, for example, in circular paths over the Machining area led to a very homogeneous Micrograph leads. There are a large number for this type of tool various abrasives known, such as flat grinding wheels, bristle arrangements etc.
  • the Grinding lamellas are regularly separated from one another spaced in the body.
  • the grinding flaps have a layer on one side Abrasives.
  • the object of the present invention was now to such a disc grinding tool with grinding flaps find which is already at the beginning of the operation, i.e. in the running-in phase, creates a constant micrograph and where there is a risk of damage to the grinding flaps is reduced or avoided.
  • a profile of the to be processed Surface of the abrasive flaps coming into contact is specified at the very beginning of the deployment of the Tools, in the running-in phase, one of the later ones Processing phase corresponding grinding pattern generated.
  • the corners of the grinding flap edges are rounded, the risk of tearing out is reduced the sharp edges compared to the conventional ones Tools considerably. They also have according to the invention designed tools, respectively. Slats, better Properties for machining fibrous Surfaces such as wood on which conventional tools due to the sharp edges scratches in cause the surface.
  • the inventive New grinding tools directly for processing of surfaces can be used without first Run-in phase must be switched on, or with a different processing quality of the surfaces must be expected. With that and thanks to the diminished The risk according to the invention can be damaged Use tools more economically than the known ones Tools.
  • the side view is conventional known disc grinding tool 1 with grinding flaps 2 shown.
  • the grinding flaps 2 are radial with respect the grinding tool axis 3, perpendicular to the tool body 4 arranged upright.
  • To keep a constant distance between the individual grinding flaps 2 are to be guaranteed between the grinding lamellae 2 spacer elements 5 from one elastic material arranged.
  • This and the following are Figures on the right half of the figure only one Grinding flap 2 is shown.
  • the grinding flaps 2 conventionally have shown a rectangular shape.
  • FIG 3 is now the side view of an inventive configured grinding tool 1 shown.
  • the structure of the grinding tool 1 basically corresponds with grinding lamellae 2 and spacers 5 the des conventional grinding tool 1 of Figure 1.
  • Die Grinding flaps 2 now have a different basic shape on by the free edge 6 of the grinding flap 2 in one Angle ⁇ inwards against the grinding tool axis 3 is inclined.
  • the trained according to the invention Grinding tool 1 accordingly has a concave, when new formed by the edges 6 of the grinding flaps 2 Processing area. If this grinding tool 1 is now in Is put into operation, i.e. at the appropriate speed is driven about the tool axis of rotation 3, the free ends of the grinding flaps 2 and thus the edge 6 slightly shifted radially outwards by centrifugal force.
  • the edge 6 is almost parallel to the processing area, i.e. it becomes an im in operation essentially flat working surface.
  • FIG. 4 shows a further preferred embodiment of Abrasive flaps 2 shown.
  • these curves prevent that through a pointed edge in the to be machined Surface scratches occur, which is particularly the case with fibrous or soft surfaces such as wood that can occur and, on the other hand, reduce the risk of that the sharp corner breaks out and with it either that Grinding tool 1 or the surface to be machined is damaged.
  • FIG Embodiment for a grinding flap 2 shown Another preferred is shown in FIG Embodiment for a grinding flap 2 shown.
  • the entire free edge 6 of the grinding flap 2 designed profiled, especially wavy here. This design supports the described beneficial effects further.
  • Plastic fibers are used, which lead to a Fabric as a carrier for the one arranged on one side Abrasives are processed.
  • the fabric structure will preferably used in such a way that the warp and weft of the Are oriented so that the through the Centrifugal force caused the grinding flaps 2 to bend Consideration of the angle ⁇ optimally counteracted becomes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Turning (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)

Abstract

The grinder has a support plate rotating on an implement's pivot axis (3) and holding grinder pieces in the form of grinder discs (2) protruding radially in relation to the implement's rotary axis and at right angles from the support plate. The grinder discs are interspersed by elastic intermediate elements (5). The free disc ends have profiled edges and or a grinding plane (6) which slopes at right angles to the pivot axis

Description

Die vorliegende Anmeldung betrifft ein Werkzeug nach dem Oberbegriff von Anspruch 1.The present application relates to a tool according to the Preamble of claim 1.

Für die maschinelle, schleifende Bearbeitung von Werkstückoberflächen werden herkömmlicherweise beispielsweise Schleifwalzen eingesetzt. Diese Werkzeuge weisen eine zur bearbeitenden Oberfläche parallel ausgerichtete Drehachse auf und das Schleifmittel ist auf der zylinderförmigen Oberfläche des Werkzeuges angeordnet. Das Schliffbild dieser Werkzeuge verläuft allerdings nur in radialer Richtung senkrecht zur Werkzeugachse.For the mechanical, grinding processing of Workpiece surfaces are becoming conventional for example, grinding rollers used. These tools have a parallel to the machining surface aligned axis of rotation and the abrasive is on the cylindrical surface of the tool. However, the grinding pattern of these tools only runs in radial direction perpendicular to the tool axis.

Um ein homogeneres Schliffbild für praktisch beliebig grosse Flächen zu erhalten, sind weiter Tellerschleifwerkzeuge bekannt. Bei diesen Werkzeugen ist die Werkzeugdrehachse senkrecht zur Bearbeitungsfläche ausgerichtet und das Werkzeug weist auf seiner der Bearbeitungsfläche zugewandten Seite kreisförmig resp. ringförmig wirkende Schleifmittel auf. Das Schleifwerkzeug wird dann beispielsweise in kreisförmigen Bahnen über die Bearbeitungsfläche geführt, was zu einem sehr homogenen Schliffbild führt. Für diese Werkzeugart sind eine Vielzahl verschiedener Schleifmittel bekannt, wie beispielsweise flache Schleifscheiben, Borstenanordnungen etc.To achieve a more homogeneous micrograph for practically any Maintaining large areas is still going on Disc grinding tools known. With these tools is the tool axis of rotation perpendicular to the machining surface aligned and the tool points to its the Machining area facing side circular respectively. ring-shaped abrasives. The grinding tool is then, for example, in circular paths over the Machining area led to a very homogeneous Micrograph leads. There are a large number for this type of tool various abrasives known, such as flat grinding wheels, bristle arrangements etc.

Insbesondere ist aus der DE 24 11 749 ein derartiges Tellerschleifwerkzeug bekannt, bei welchem die Schleifmittel als senkrecht zum tellerförmigen Grundkörper stehende, radial von der Drehachse nach Aussen weisend angeordnete Schleiflamellen ausgebildet sind. Die Schleiflamellen sind dabei regelmässig voneinander beabstandet im Grundkörper angeordnet. Die Schleiflamellen weisen dabei auf einer Seite eine Schicht mit Schleifmitteln auf.Such is in particular from DE 24 11 749 Disc grinding tool known, in which the Abrasives as perpendicular to the plate-shaped body standing, pointing radially outwards from the axis of rotation arranged grinding flaps are formed. The Grinding lamellas are regularly separated from one another spaced in the body. The grinding flaps have a layer on one side Abrasives.

Der Nachteil solcher Tellerschleifwerkzeuge mit Schleiflamellen besteht nun darin, dass das Schliffbild über die Gebrauchs- resp. Nutzdauer des Werkzeuges nicht homogen ist. In der Einlaufphase, d.h. beim ersten Inbetriebsetzen dieses Werkzeuges, wird ein anderes Schliffbild erzielt, als in der anschliessenden Betriebsphase, welche bis zu einem bestimmten Abnützungsgrad des Werkzeuges in Anspruch genommen werden kann. Ebenfalls besteht je nach der Art der zu bearbeitenden Oberfläche die Gefahr, dass das Werkzeug, insbesondere die Schleiflamellen, in der Einlaufphase beschädigt werden, was im schlechtesten Fall zu einer irreparablen Beschädigung der zu bearbeitenden Oberfläche führt oder aber zu einem über einen längeren Zeitraum bestehenden unregelmässigen Schliffbild. Dies ist insbesondere der Fall bei der Bearbeitung von faserigen oder weichen Oberflächen, wie beispielsweise Holzoberflächen.The disadvantage of such disc grinding tools Grinding flaps now consist of the grinding pattern about the use or Tool life is not is homogeneous. In the running-in phase, i.e. at the first Putting this tool into use will be different Micrograph achieved than in the subsequent Operating phase, which up to a certain Wear of the tool can be claimed can. Also exists depending on the type of machining surface the risk that the tool, especially the grinding lamella, in the running-in phase be damaged, which in the worst case becomes a irreparable damage to the surface to be processed leads to or over a longer period existing irregular micrograph. This is especially the case when processing fibrous or soft surfaces, such as Wood surfaces.

Die Aufgabe der vorliegenden Erfindung bestand nun darin, ein derartiges Tellerschleifwerkzeug mit Schleiflamellen zu finden, welches bereits zu Beginn des Einsatzes, d.h. in der Einlaufphase, ein konstantes Schliffbild erzeugt und bei welchem die Gefahr der Beschädigung der Schleiflamellen reduziert oder vermieden wird.The object of the present invention was now to such a disc grinding tool with grinding flaps find which is already at the beginning of the operation, i.e. in the running-in phase, creates a constant micrograph and where there is a risk of damage to the grinding flaps is reduced or avoided.

Diese Aufgabe wird erfindungsgemäss durch ein Schleifwerkzeug mit den Merkmalen nach Anspruch 1 gelöst. Bevorzugte Ausführungsformen der Erfindung ergeben sich aus den weiteren Ansprüchen 2 bis 7. According to the invention, this object is achieved by a Solved grinding tool with the features of claim 1. Preferred embodiments of the invention result from further claims 2 to 7.

Durch die Anordnung von elastischen Zwischenelementen zwischen den einzelnen Schleiflamellen, welche an die Oberflächen der Schleiflamellen anliegen und nicht mit ihnen verbunden sind, wird eine gute Stützung der Schleiflamellen im Betrieb erreicht, was zu einem homogenen Schliffbild führt.Due to the arrangement of elastic intermediate elements between the individual grinding lamellae, which are attached to the Surfaces of the grinding flaps are in contact and not with connected to them will provide good support to the Grinding lamella reached in operation, resulting in a homogeneous Micrograph leads.

Indem der Bearbeitungsfläche des Werkzeuges im Neuzustand vorzugsweise eine Profilierung der mit der zu bearbeitenden Oberfläche in Kontakt kommenden Kanten der Schleiflamellen vorgegeben wird, wird gleich zu Beginn des Einsatzes des Werkzeuge, in der Einlaufphase, ein der späteren Bearbeitungsphase entsprechendes Schliffbild erzeugt.By the processing surface of the tool in new condition preferably a profile of the to be processed Surface of the abrasive flaps coming into contact is specified at the very beginning of the deployment of the Tools, in the running-in phase, one of the later ones Processing phase corresponding grinding pattern generated.

Wenn vorzugsweise die Ecken der Schleiflamellenkanten gerundet sind, vermindert sich die Gefahr des Ausreissens der spitzen Kanten im Vergleich mit den herkömmlichen Werkzeugen erheblich. Ebenfalls weisen die erfindungsgemäss ausgestalteten Werkzeuge, resp. Lamellen, bessere Eigenschaften für die Bearbeitung von faserigen Oberflächen, wie beispielsweise Holz auf, bei welchen herkömmliche Werkzeuge durch die spitzen Kanten Kratzer in der Oberfläche verursachen.If preferably the corners of the grinding flap edges are rounded, the risk of tearing out is reduced the sharp edges compared to the conventional ones Tools considerably. They also have according to the invention designed tools, respectively. Slats, better Properties for machining fibrous Surfaces such as wood on which conventional tools due to the sharp edges scratches in cause the surface.

Vorteilhafterweise können die erfindungsgemässen Schleifwerkzeuge im Neuzustand direkt für die Bearbeitung von Oberflächen eingesetzt werden, ohne dass zuerst eine Einlaufphase eingeschaltet werden muss, oder mit einer unterschiedlichen Bearbeitungsqualität der Oberflächen gerechnet werden muss. Damit und dank der verminderten Beschädigungsgefahr lassen sich die erfindungsgemässen Werkzeuge wirtschaftlicher einsetzen als die bekannten Werkzeuge. Advantageously, the inventive New grinding tools directly for processing of surfaces can be used without first Run-in phase must be switched on, or with a different processing quality of the surfaces must be expected. With that and thanks to the diminished The risk according to the invention can be damaged Use tools more economically than the known ones Tools.

Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand von Figuren der beiliegenden Zeichnung noch näher erläutert. Es zeigen

  • Fig. 1 schematisch die Seitenansicht eines herkömmlichen Tellerschleifwerzeuges mit Schleiflamellen;
  • Fig. 2 den Querschnitt durch das Werkzeug nach Figur 1 im Bereich der Schleiflamellen;
  • Fig. 3 schematisch die Seitenansicht eines erfindungsgemässen Tellerschleifwerkzeuges mit geneigten Schleiflamellenkante;
  • Fig. 4 die Ansicht einer bevorzugten Ausführungsform einer Schleiflamelle für ein erfindungsgemässes Tellerschleifwerkzeug nach Figur 3; und
  • Fig. 5 die Ansicht einer weiteren, bevorzugten Ausführungsform einer Schleiflamelle für ein erfindungsgemässes Tellerschleifwerkzeug nach Figur 3
    • An embodiment of the invention is explained in more detail below with reference to figures of the accompanying drawing. Show it
  • Figure 1 shows schematically the side view of a conventional disc grinding tool with grinding flaps.
  • 2 shows the cross section through the tool according to FIG. 1 in the area of the grinding flaps;
  • 3 schematically shows the side view of a plate grinding tool according to the invention with an inclined grinding flap edge;
  • 4 shows the view of a preferred embodiment of a grinding flap for a disk grinding tool according to the invention according to FIG. 3; and
  • 5 shows the view of a further preferred embodiment of a grinding flap for a disk grinding tool according to the invention according to FIG. 3

    • In Figur 1 ist die Seitenansicht eines herkömmlich bekannten Tellerschleifwerkzeuges 1 mit Schleiflamellen 2 dargestellt. Die Schleiflamellen 2 sind radial bezüglich der Schleifwerkzeugachse 3, senkrecht zum Werkzeugkörper 4 stehend angeordnet. Um einen konstanten Abstand zwischen den einzelnen Schleiflamellen 2 zu gewährleisten sind zwischen den Schleiflamellen 2 Abstandselemente 5 aus einem elastischen Material angeordnet. Der besseren Uebersichtlichkeit halber sind bei dieser und den folgenden Figuren jeweils auf der rechten Figurenhälfte nur eine Schleiflamelle 2 eingezeichnet. In Figure 1, the side view is conventional known disc grinding tool 1 with grinding flaps 2 shown. The grinding flaps 2 are radial with respect the grinding tool axis 3, perpendicular to the tool body 4 arranged upright. To keep a constant distance between the individual grinding flaps 2 are to be guaranteed between the grinding lamellae 2 spacer elements 5 from one elastic material arranged. The better For the sake of clarity, this and the following are Figures on the right half of the figure only one Grinding flap 2 is shown.

    In Figur 2 ist die Anordnung des Schleifwerkzeuges 1 von Figur 1 der besseren Uebersicht halber noch im Querschnitt dargestellt. Hier wird insbesondere die radiale Anordnung der Schleiflamellen 2 mit den dazwischen angeordneten Abstandselementen 5 klar ersichtlich.In Figure 2, the arrangement of the grinding tool 1 of Figure 1 for the sake of a better overview still in cross section shown. Here in particular the radial arrangement of the grinding flaps 2 with those arranged in between Spacers 5 clearly visible.

    Die Schleiflamellen 2 weisen herkömmlicherweise wie dargestellt eine rechteckige Form auf.The grinding flaps 2 conventionally have shown a rectangular shape.

    In Figur 3 ist nun die Seitenansicht eines erfindungsgemäss ausgestalteten Schleifwerkzeuges 1 dargestellt. Grundsätzlich entspricht der Aufbau des Schleifwerkzeuges 1 mit Schleiflamellen 2 und Abstandselementen 5 dem des herkömmlichen Schleifwerzeuges 1 von Figur 1. Die Schleiflamellen 2 weisen nun aber eine andere Grundform auf, indem die freie Kante 6 der Schleiflamelle 2 in einem Winkel α nach Innen gegen die Schleifwerkzeugachse 3 geneigt ausgebildet ist. Das erfindungsgemäss ausgebildete Schleifwerkzeug 1 weist demnach im Neuzustand eine konkave, durch die Kanten 6 der Schleiflamellen 2 gebildete Bearbeitungsfläche auf. Wenn diese Schleifwerkzeug 1 nun in Betrieb genommen wird, d.h. mit der entsprechenden Drehzahl um die Werkzeugdrehachse 3 angetrieben wird, werden die freien Enden der Schleiflamellen 2 und damit die Kante 6 durch die Fliehkraft radial leicht nach Aussen verschoben. Da die Schleiflamellen 2 an ihrem anderen Ende fest mit dem Werkzeugkörper 4 verbunden sind, und die äusseren Ecken 6' der Schleiflamellen 2 eine höhere Umdrehungsgeschwindigkeit aufweisen und damit auch einer höheren Fliehkraft unterworfen sind, richtet sich die Kante 6 nahezu parallel zur Bearbeitungsfläche aus, d.h. es wird im Betrieb eine im wesentlichen plane Bearbeitungsfläche gebildet. In Figure 3 is now the side view of an inventive configured grinding tool 1 shown. The structure of the grinding tool 1 basically corresponds with grinding lamellae 2 and spacers 5 the des conventional grinding tool 1 of Figure 1. Die Grinding flaps 2 now have a different basic shape on by the free edge 6 of the grinding flap 2 in one Angle α inwards against the grinding tool axis 3 is inclined. The trained according to the invention Grinding tool 1 accordingly has a concave, when new formed by the edges 6 of the grinding flaps 2 Processing area. If this grinding tool 1 is now in Is put into operation, i.e. at the appropriate speed is driven about the tool axis of rotation 3, the free ends of the grinding flaps 2 and thus the edge 6 slightly shifted radially outwards by centrifugal force. Since the grinding flaps 2 at their other end firmly with the Tool body 4 are connected, and the outer corners 6 ' the grinding flaps 2 a higher speed of rotation have and thus a higher centrifugal force are subjected, the edge 6 is almost parallel to the processing area, i.e. it becomes an im in operation essentially flat working surface.

    Damit wird verhindert, dass sich beim der Inbetriebnahme des erfindungsgemässen Werkzeuges 1, d.h. in der Einlaufphase, durch die geschilderten Gegebenheiten, eine konvexe Bearbeitungsfläche bildet, bei welcher die inneren Ecken 6" zuerst und allein in Eingriff mit der zu bearbeitenden Oberfläche gelangen und damit in dieser Phase ein anderes Schliffbild erzeugen, als in der späteren Betriebsphase, bei welcher sich die Kanten 6 der Schleiflamellen 2 entsprechend der Schleifwirkung Abnutzen und ihre Form verändern.This prevents that during commissioning of the tool 1 according to the invention, i.e. in the Running-in phase, due to the described circumstances, a forms convex working surface, in which the inner Corners 6 "first and only engaged with the processing surface and thus in this phase create a different micrograph than in the later one Operating phase, in which the edges 6 of the Wear grinding flaps 2 according to the grinding effect and change their shape.

    Es hat sich gezeigt, dass der Neigungswinkel α vorteilhafterweise zwischen 1° und 15° ausgeführt wird, um die vorteilhaftesten Resultate zu erzielen.It has been shown that the angle of inclination α advantageously between 1 ° and 15 ° to get the most beneficial results.

    In Figur 4 ist eine weitere, bevorzugte Ausbildung von Schleiflamellen 2 dargestellt. Hierbei sind nun die Ecken 6' und 6'' gerundet. Diese Rundungen verhindern einerseits, dass durch eine spitze Kante in der zu bearbeitenden Oberfläche Kratzer entstehen, was insbesondere bei faserigen oder weichen Oberflächen wie beispielsweise Holz die auftreten kann, und verringern andererseits die Gefahr, dass die spitze Ecke ausbricht und damit entweder das Schleifwerkzeug 1 oder die zu bearbeitende Oberfläche beschädigt wird.FIG. 4 shows a further preferred embodiment of Abrasive flaps 2 shown. Here are the corners 6 'and 6' 'rounded. On the one hand, these curves prevent that through a pointed edge in the to be machined Surface scratches occur, which is particularly the case with fibrous or soft surfaces such as wood that can occur and, on the other hand, reduce the risk of that the sharp corner breaks out and with it either that Grinding tool 1 or the surface to be machined is damaged.

    In Figur 5 ist nochmals eine weitere, bevorzugte Ausführungsform für eine Schleiflamelle 2 dargestellt. Hier ist nun die ganze freie Kante 6 der Schleiflamelle 2 profiliert ausgestaltet, hier insbesondere wellenförmig. Diese Formgebung unterstützt die beschriebenen, vorteilhaften Wirkungen weiter. Another preferred is shown in FIG Embodiment for a grinding flap 2 shown. Here is now the entire free edge 6 of the grinding flap 2 designed profiled, especially wavy here. This design supports the described beneficial effects further.

    Vorteilhafterweise lassen sich die beschriebenen, erfindungsgemässen Werkzeuge ohne eine separate Einlaufzeit sofort produktiv einsetzen, ohne dass eine Veränderung oder Einbusse an der Qualität des Ergebnisses, d.h. am Schliffbild, in Kauf genommen werden muss. Damit lässt sich dieses Werkzeug vorteilhafterweise im Vergleich mit den bislang bekannten Werkzeugen wesentlich wirtschaftlicher einsetzen, bei erhöhter Qualität des Schleifergebnisses.The described, Tools according to the invention without a separate running-in time Use it immediately without making a change or The quality of the result, i.e. at the Micrograph that has to be accepted. With that you can this tool advantageously compared to the previously known tools much more economical use, with increased quality of the grinding result.

    Als Trägermaterial für die Schleiflamellen 2 können Naturoder Kunststoffasern eingesetzt werden, welche zu einem Gewebe als Träger für das auf einer Seite angeordnete Schleifmittel verarbeitet werden. Die Gewebestruktur wird vorzugsweise derart eingesetzt, dass Kette und Schuss des Gewebes derart orientiert sind, dass der durch die Fliehkraft bewirkten Ausbiegung der Schleiflamellen 2 unter Berücksichtigung des Winkels α optimal entgegengewirkt wird.Natural or. Can be used as carrier material for the grinding flaps 2 Plastic fibers are used, which lead to a Fabric as a carrier for the one arranged on one side Abrasives are processed. The fabric structure will preferably used in such a way that the warp and weft of the Are oriented so that the through the Centrifugal force caused the grinding flaps 2 to bend Consideration of the angle α optimally counteracted becomes.

    Claims (7)

    1. Tool for the abrasive treatment of surfaces, with a disc-like support body (4), which can rotate about a tool rotational axis (3), with grinding means located thereon in the form of grinding flaps (2) which project substantially perpendicularly from the support body (4), are disposed radially to the tool rotational axis (3) and are provided on one side with a grinding means, wherein the free flap ends have edges (6) which are inclined relative to the grinding plane, which extends perpendicularly to the tool rotational axis (3), such that the edge corners (6") of the grinding flaps (2) which are on the inside relative to the rotational axis (3) are located at a smaller distance from the support body than the outer edge corners (6'), characterised in that the grinding flaps (2) are spaced apart by elastic intermediate elements (5).
    2. Tool according to Claim 1, characterised in that the grinding flaps (2) have profiled edges (6) at the free flap ends.
    3. Tool according to Claim 1 or 2, characterised in that the inclination (α) of the edges (6) is between 1° and 15° relative to the grinding plane.
    4. Tool according to any one of Claims 1 to 3, characterised in that in each case at least one corner (6'; 6") of the edges (6) of the flap ends is rounded, with both corners (6'; 6") preferably being rounded.
    5. Tool according to any one of Claims 1 to 4, characterised in that the grinding flaps consist of a fabric made of a plastics material or natural fibre as carrier material.
    6. Tool according to Claim 5, characterised in that the grinding flaps (2) are connected to the support body (4) such that the weft threads of the fabric extend substantially perpendicularly or at an angle or curve to the grinding plane and the warp threads extend substantially parallel to the grinding plane.
    7. Tool according to any one of Claims 1 to 6, characterised in that the free edges (6) of the grinding flaps (2) are profiled in corrugated fashion.
    EP97121899A 1997-12-12 1997-12-12 Tool for abrasive treatment of surfaces Expired - Lifetime EP0922535B1 (en)

    Priority Applications (6)

    Application Number Priority Date Filing Date Title
    ES97121899T ES2175253T3 (en) 1997-12-12 1997-12-12 TOOL TO WORK ABRASION SURFACES.
    AT97121899T ATE215871T1 (en) 1997-12-12 1997-12-12 TOOL FOR GRINDING SURFACES
    DK97121899T DK0922535T3 (en) 1997-12-12 1997-12-12 Tool for abrasive machining of surfaces
    PT97121899T PT922535E (en) 1997-12-12 1997-12-12 TOOL FOR SURFACE RECTIFYING WORK
    EP97121899A EP0922535B1 (en) 1997-12-12 1997-12-12 Tool for abrasive treatment of surfaces
    DE59706987T DE59706987D1 (en) 1997-12-12 1997-12-12 Tool for grinding surfaces

    Applications Claiming Priority (1)

    Application Number Priority Date Filing Date Title
    EP97121899A EP0922535B1 (en) 1997-12-12 1997-12-12 Tool for abrasive treatment of surfaces

    Publications (2)

    Publication Number Publication Date
    EP0922535A1 EP0922535A1 (en) 1999-06-16
    EP0922535B1 true EP0922535B1 (en) 2002-04-10

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97121899A Expired - Lifetime EP0922535B1 (en) 1997-12-12 1997-12-12 Tool for abrasive treatment of surfaces

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    EP (1) EP0922535B1 (en)
    AT (1) ATE215871T1 (en)
    DE (1) DE59706987D1 (en)
    DK (1) DK0922535T3 (en)
    ES (1) ES2175253T3 (en)
    PT (1) PT922535E (en)

    Cited By (2)

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    EP1173309B1 (en) * 1999-04-23 2002-12-11 Elliott Industries Limited Abrasive flap disc
    US6506100B2 (en) 2000-01-28 2003-01-14 Blaettler Werner Grinding tool, processing machine with a grinding tool, use of a grinding tool and method for processing a work piece

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    FR2809044B1 (en) * 2000-05-22 2004-01-23 Thierry Grasser ABRASIVE TOOL WITH TOP CAP ATTACK
    US6869349B2 (en) 2002-10-10 2005-03-22 Slipcon Holding International Aps Abrading machine with abrading discs, which are moved in a reciprocatory movement transverse to an item
    US20050260940A1 (en) 2004-05-21 2005-11-24 Simon Palushaj Abrasive cleaning device
    US20170113327A1 (en) * 2015-10-25 2017-04-27 Dimar Ltd Sanding device
    EP4110552B1 (en) 2020-02-28 2024-04-10 Wendt Poliertechnik GmbH & Co. KG Polishing tool
    DE102020001283A1 (en) 2020-02-28 2021-09-02 Wendt Poliertechnik Gmbh & Co. Kg Polishing tool
    DE202020000786U1 (en) 2020-02-28 2021-05-31 Wendt Poliertechnik Gmbh & Co. Kg Polishing tool

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    DE2411749A1 (en) * 1974-03-12 1975-09-25 Festo Maschf Stoll G Hand operated rotary powered disc grinder - has bunched abrasive paper grinding elements inset into the grinding disc
    US4493170A (en) * 1981-11-19 1985-01-15 The Boeing Company Abrading tool

    Cited By (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1173309B1 (en) * 1999-04-23 2002-12-11 Elliott Industries Limited Abrasive flap disc
    US6808446B1 (en) 1999-04-23 2004-10-26 Elliott Industries Limited Abrasive flap disc
    US6506100B2 (en) 2000-01-28 2003-01-14 Blaettler Werner Grinding tool, processing machine with a grinding tool, use of a grinding tool and method for processing a work piece

    Also Published As

    Publication number Publication date
    ES2175253T3 (en) 2002-11-16
    DE59706987D1 (en) 2002-05-16
    PT922535E (en) 2002-09-30
    ATE215871T1 (en) 2002-04-15
    DK0922535T3 (en) 2002-08-05
    EP0922535A1 (en) 1999-06-16

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