EP0347429B1 - Rotary brush tool - Google Patents

Rotary brush tool Download PDF

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Publication number
EP0347429B1
EP0347429B1 EP88905195A EP88905195A EP0347429B1 EP 0347429 B1 EP0347429 B1 EP 0347429B1 EP 88905195 A EP88905195 A EP 88905195A EP 88905195 A EP88905195 A EP 88905195A EP 0347429 B1 EP0347429 B1 EP 0347429B1
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EP
European Patent Office
Prior art keywords
belt
tool according
bristles
rotary
rotary belt
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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
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EP88905195A
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German (de)
French (fr)
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EP0347429A1 (en
Inventor
Werner Montabaur
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MONTABAUR, WERNER
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Individual
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D13/00Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor
    • B24D13/02Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery
    • B24D13/10Wheels having flexibly-acting working parts, e.g. buffing wheels; Mountings therefor acting by their periphery comprising assemblies of brushes
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B13/00Brushes with driven brush bodies or carriers
    • A46B13/001Cylindrical or annular brush bodies
    • A46B13/003Cylindrical or annular brush bodies made up of a series of annular brush rings; Annular brush rings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24DTOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D9/00Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
    • B24D9/02Expansible drums for carrying flexible material in tubular form, e.g. expanded by centrifugal force

Definitions

  • the invention relates to a rotary belt tool for surface processing.
  • Such tools are e.g. Known as belt grinders, in which an abrasive belt runs over a driven and a rotating disc, or rotary brush tools are also known, but in which the bristles are carried by the brush body or by segment pieces (DE-OS 28 25 090, DE-OS 31 35 468).
  • These known tools have various disadvantages such as that they are poorly suited for the surface treatment of profiled bars or for structuring wood and that they, among other things. unwieldy, not very effective and, above all, only very limitedly applicable and usable.
  • the invention is therefore based on the object of eliminating these disadvantages and of providing an improved radially acting rotary belt tool for surface processing which is more versatile, more effective and yet is also easy to handle, durable, safe and easy to maintain, and compact and inexpensive.
  • this object is achieved according to the invention by the features in the characterizing part of claim 1 as the main claim.
  • the features of the subclaims represent developments and refinements of the main subject-matter of the object.
  • the tool according to the invention can be designed, for example, for structuring wood or for working on leather or for removing rust from steel profiles as a wire brush, in which the axis of rotation relative to the tool axis Bristles standing radially outwards, for example non-rotatably to their main bristle axis, can be fastened at regular intervals from one another in such a way that bristles which are one behind the other in the circumferential direction are axially offset laterally from one another by the bristle wire diameter and the bristle end regions can be slightly bent, for example also in the circumferential direction, and the bristle ends can be ground and the removal rate can be changed significantly by changing the direction of rotation of the tool.
  • the wood can be structured without damaging the wood surface.
  • Different bristle lengths over the axial tool length make it possible to machine rods of any material with a profile cross section in the longitudinal direction on their surface over partial contour areas.
  • the free wire ends experience a much desired self-sharpening due to the non-rotatability and lateral displacement of the bristles, while otherwise the surface to be machined can be pollinated with increasing smoothing of the bristle ends. Resharpening of the bristle ends by simply removing or dressing e.g. on the grindstone is possible.
  • the tool according to the invention can also be used and used as a rotating file, as a milling tool, as a polishing tool, as a grinding tool, etc., depending on the equipment of the band with the corresponding elements acting on the surface to be machined.
  • the tool according to the invention is i.a. for structuring or cleaning surfaces as well as e.g. also for roughening and refurbishing, for example leather or for polishing.
  • FIG. 1 shows an exemplary embodiment of a rotary belt tool according to the invention, in which the belt 5 is equipped with steel bristles of the same length.
  • the flat thin endless band 5 is stretched as a ring on a rubber-elastic ring body 3, which is clamped axially deforming between the two flanges 1 and 2 of the clamping unit 1, 2 and attempts to expand radially as a result of its deformation, as a result of which the band 5 is clamped.
  • the ring body 3 surrounds two mutually facing axial lugs 8, 9 on the two flanges 1 and 2, which center it and prevent its deformation towards the tool axis.
  • the projections 11 enter the ring body 3 made of rubber-elastic material in an increasingly deep axial manner.
  • One of the flanges 2 has a central axial through-hole with a counterbore, which receives the shaft and the head of a clamping screw.
  • the clamping screw engages with its threaded shaft in a blind hole thread in the axial approach of the other flange 1, so that when the clamping screw is tightened, the two flanges 1 and 2 are clamped axially against one another and against the annular body 3, which in turn causes the band 5 to be circumferential of the ring body 3 is clamped.
  • the two flanges 1, 2 protrude somewhat beyond the diameter of the ring body 3 so as to axially enclose the band 5 on the ring body 3.
  • the flange 1 with the threaded blind hole in its axial shoulder 8 carries on its side facing away from the shoulder a shaft 7 which serves to clamp the tool in a rotary drive, for example in the chuck of a hand drill.
  • the e.g. Shaft 7 positively attached to flange 1 can have, for example, a regular hexagon cross section.
  • the two mutually facing axial lugs 8, 9 of the two flanges 1, 2 are at their ends by a radial web, on the one hand, and a corresponding groove, on the other hand, so positively interlocked that the two flanges 1, 2 are non-rotatable but axially displaceable.
  • the bristle length in this tool corresponds to approximately half the ring body diameter or approximately a quarter of the tool diameter.
  • the clamping screw has, for example, a hexagon socket in the head.
  • the shaft 7 is axially fixed, for example, by radial deformation of the wall of an attachment shoulder of the flange 1 receiving its end.
  • FIG. 2 shows the ring body 3 of the tool, which is made of rubber-elastic material, with its bore for receiving the flange projections 8, 9 and with the end-side recesses for the engagement of the flange projections 11, which have a uniformly increasing depth with a smaller radius.
  • the two end faces of the ring body 3 are very frustoconical, ie the axial length of the ring body 3 increases slightly and evenly with increasing radius from the axis.
  • the ring body 3 has a plane of symmetry perpendicular to the ring body axis.
  • Figure 3 shows the flange 1 of the clamping unit 1, 2 with the fastening attachment for the hexagonal shaft on one flange side for clamping the tool in a rotary drive, e.g. the drill chuck of a drill.
  • the fastening attachment has a blind hole with a hexagonal inner cross section.
  • the flange 1 carries the axial shoulder 8 with the threaded blind hole, a guide recess as a cylindrical end depression and radially outside the depression, each with a carrier web.
  • the flange 1 has radially extending stiffening ribs that decrease conically radially outwards.
  • the flange 1 On the side of the axial cylindrical projection 8, the flange 1 carries, with a larger radius, the projections 11 which are evenly distributed over the circumference and whose height relative to the flange 1 decreases uniformly to a lower final height with increasing radius.
  • Figure 4 finally shows the other flange 2, which differs from the former in that, instead of the fastening lug and the threaded blind hole, a through hole for the clamping screw is provided with a conical depression at the end of the hole facing away from the lug.
  • the free end of the attachment has a transverse groove or a slot for receiving the driving webs transverse to the tool axis.
  • This flange 2 has no radial stiffening ribs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Brushes (AREA)

Abstract

The invention concerns a rotary belt tool for surface working which is much more versatile and effective than known tools but is nevertheless easy to handle, durable, safe, easily maintained, as well as compact and economical. The belt of the tool is designed as an endless, narrow closed ring to which are attached radial external elements such as bristles, teeth, abrasive grain, or burnishing compounds. The belt is attached along its entire periphery to the periphery of the axial surface shell of a single belt carrier which can rotate. The tool, for example for structuring wood, finishing leather, or derusting steel profiles, can be designed as a wire brush, in which the bristles which extends radially outward from the tool axis as the axis of rotation can be attached, for example, in an equally spaced non-rotatable manner to their main bristle axis such that bristles positioned one behind the other in the peripheral direction are laterally offset to one another in the axial direction and the end regions of the bristles for example also in the peripheral direction can be slightly bent, the tips of the bristles can be smooth, and the rate of removal of material can be appreciably varied by changing the direction of rotation of the tool. By varying the lengths of the bristles, for example, over the axial length of the tool, rods of any type of material having a profile cross-section in the longitudinal direction can be surface worked over partial contour regions.

Description

Die Erfindung betrifft ein Rotationsbandwerkzeug zur Oberflächenbearbeitung. Solche Werkzeuge sind z.B. als Bandschleifgeräte bekannt, bei denen ein Schleifband über eine angetriebene und eine mitlaufende Scheibe läuft, oder es sind auch Rotationsbürstenwerkzeuge bekannt, bei denen die Borsten jedoch vom Bürstenkörper oder von Segmentstücken getragen werden, (DE-OS 28 25 090, DE-OS 31 35 468). Diese bekannten Werkzeuge haben verschiedenste Nachteile wie z.B., daß sie schlecht geeignet sind zur Oberflächenbearbeitung von profilierten Stäben oder zur Strukturierung von Holz und daß sie u.a. unhandlich, nur wenig effektiv und vorallem nur sehr beschränkt anwendbar und einsatzfähig sind.The invention relates to a rotary belt tool for surface processing. Such tools are e.g. Known as belt grinders, in which an abrasive belt runs over a driven and a rotating disc, or rotary brush tools are also known, but in which the bristles are carried by the brush body or by segment pieces (DE-OS 28 25 090, DE-OS 31 35 468). These known tools have various disadvantages such as that they are poorly suited for the surface treatment of profiled bars or for structuring wood and that they, among other things. unwieldy, not very effective and, above all, only very limitedly applicable and usable.

Der Erfindung liegt daher die Aufgabe zugrunde, diese Nachteile zu beseitigen und ein verbessertes radial wirkendes Rotationsbandwerkzeug zur Oberflächenbearbeitung anzugeben, das vielseitiger einsetzbar ist, effektiver wirkt und dabei dennoch auch leicht handhabbar langlebig, sicher und wartungsfreundlich sowie kompakt und kostengünstig ist. Ausgehend von einem gattungsgemäßen Werkzeug wird diese Aufgabe erfinderisch gelöst durch die Merkmale im kennzeichnenden Teil des Patentanspruches 1 als dem Hauptanspruch. Die Merkmale der Unteransprüche stellen Weiterbildungen und Ausgestaltungen des Hauptanspruchgegenstandes im Sinne der gestellten Aufgabe dar. So kann das erfindungsgemäße Werkzeug beispielsweise zum Strukturieren von Holz oder zum Aufarbeiten von Leder oder zum Entrosten von Stahlprofilen als Drahtbürste ausgebildet sein, bei welcher die gegenüber der Werkzeugachse als Rotationsachse radial nach außen stehenden Borsten z.B. unverdrehbar zu ihrer Borstenhauptachse in regelmäßigen Abständen voneinander so befestigt sein können, daß in Umfangsrichtung hintereinanderstehende Borsten um den Borstendrahtdurchmesser axial seitlich gegeneinander versetzt angeordnet sind und die Borstenendbereiche beispielsweise auch in Umfangsrichtung leicht abgebogen sein können, die Borstenenden angeschliffen sein können und die Abtragrate durch Drehrichtungswechsel des Werkzeuges deutlich veränderbar ist. Durch die Borstenversetzung quer zur Umfangsrichtung gelingt die Holzstrukturierung ohne Verletzung der Holzoberfläche. Durch unterschiedliche Borstenlänge über die axiale Werkzeuglänge besteht die Möglichkeit, Stangen beliebigen Materials mit Profilquerschnitt in Längsrichtung an ihrer Oberfläche über Teilkonturbereiche hinweg zu bearbeiten.The invention is therefore based on the object of eliminating these disadvantages and of providing an improved radially acting rotary belt tool for surface processing which is more versatile, more effective and yet is also easy to handle, durable, safe and easy to maintain, and compact and inexpensive. Starting from a generic tool, this object is achieved according to the invention by the features in the characterizing part of claim 1 as the main claim. The features of the subclaims represent developments and refinements of the main subject-matter of the object. The tool according to the invention can be designed, for example, for structuring wood or for working on leather or for removing rust from steel profiles as a wire brush, in which the axis of rotation relative to the tool axis Bristles standing radially outwards, for example non-rotatably to their main bristle axis, can be fastened at regular intervals from one another in such a way that bristles which are one behind the other in the circumferential direction are axially offset laterally from one another by the bristle wire diameter and the bristle end regions can be slightly bent, for example also in the circumferential direction, and the bristle ends can be ground and the removal rate can be changed significantly by changing the direction of rotation of the tool. Thanks to the bristle offset across the circumferential direction, the wood can be structured without damaging the wood surface. Different bristle lengths over the axial tool length make it possible to machine rods of any material with a profile cross section in the longitudinal direction on their surface over partial contour areas.

Die freien Drahtenden erfahren bei Drehrichtungsumkehr eine vielfach erwünschte Selbstschärfung durch die Unverdrehbarkeit und seitliche Versetzung der Borsten während sonst bei zunehmender Glättung der Borstenenden eine Pollierung der zu bearbeitenden Oberfläche bewirkt werden kann. Auch ein Nachschärfen der Borstenenden durch einfaches Abziehen bzw. Abrichten z.B. am Schleifstein ist möglich. Das erfindungsgemäße Werkzeug kann aber ebenso als rotierende Feile, als Fräswerkzeug, als Pollierwerkzeug, als Schleifwerkzeug usw. eingesetzt und verwendet werden, je nach der Bestückung des Bandes mit den entsprechenden, auf die zu bearbeitende Oberfläche einwirkenden Elementen. Das erfindungsgemäße Werkzeug ist dabei u.a. zur Strukturierung oder Reinigung von Oberflächen ebenso einsetzbar wie z.B. auch zum Aufrauhen und Aufarbeiten, beispielsweise von Leder oder zum Pollieren. Es gibt keinerlei Beschränkung auf die nur beispielhaft genannten Anwendungsmöglichkeiten, sondern darüber hinaus gibt es noch eine große Vielfalt und Vielzahl, hier nicht einzeln aufzählbarer, höchst interessanter und nutzvoller Anwendungsmöglichkeiten.When the direction of rotation is reversed, the free wire ends experience a much desired self-sharpening due to the non-rotatability and lateral displacement of the bristles, while otherwise the surface to be machined can be pollinated with increasing smoothing of the bristle ends. Resharpening of the bristle ends by simply removing or dressing e.g. on the grindstone is possible. However, the tool according to the invention can also be used and used as a rotating file, as a milling tool, as a polishing tool, as a grinding tool, etc., depending on the equipment of the band with the corresponding elements acting on the surface to be machined. The tool according to the invention is i.a. for structuring or cleaning surfaces as well as e.g. also for roughening and refurbishing, for example leather or for polishing. There is no restriction to the application possibilities mentioned only by way of example, but there is also a great variety and variety, extremely interesting and useful application possibilities, which cannot be individually enumerated here.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der Zeichnung erläutert: So zeigt

Figur 1
eine mit Borsten bestückte Ausbildung des erfindungsgemäßen Rotationsbandwerkzeuges im Querschnitt
Figur 2
eine Ringkörperausbildung des Werkzeuges zum Spannen des Bandes auf seiner axialen Mantelfläche
Figur 3
eine Hälfte der Spanneinheit mit dem Schaft zur Aufnahme des Werkzeuges in einer Antriebsmaschine
Figur 4
die andere Hälfte der Spanneinheit bestehend aus Flansch mit zentrischem, axialem Ansatz, Schraubenbohrung und axialen Vorsprüngen zur formschlüssigen Mitnahme des Ringkörpers.
An embodiment of the invention is explained below with reference to the drawing: So shows
Figure 1
a bristled design of the rotary belt tool according to the invention in cross section
Figure 2
an annular body formation of the tool for tensioning the band on its axial outer surface
Figure 3
one half of the clamping unit with the shaft for receiving the tool in a drive machine
Figure 4
the other half of the clamping unit consists of a flange with a central, axial shoulder, screw hole and axial projections for the positive entrainment of the ring body.

In Figur 1 ist ein Ausführungsbeispiel eines erfindungsgemäßen Rotationsbandwerkzeuges gezeigt, bei dem das Band 5 mit Stahldrohtborsten gleicher Länge bestückt ist. Das flache dünne endlose Band 5 ist als Ring auf einem gummielastischen Ringkörper 3 gespannt, der zwischen den beiden Flanschen 1 und 2 der Spanneinheit 1,2 axial verformend verspannt wird und sich infolge seiner Verformung radial aufzuweiten sucht, wodurch das Band 5 festgespannt wird. Der Ringkörper 3 umgibt dabei zwei einander zugewandte axiale Ansätze 8,9 an den beiden Flanschen 1 und 2, die ihn zentrieren und seine Verformung zur Werkzeugochse hin verhindern. Axial ragen in die beiden Stirnflächen des Ringkörpers 3 an den Flanschen 1 und 2 ausgebildete, axiale, einander zugewandte Vorsprünge, die eine zuverlässige, formschlüssige Mitnahmeverbindung und Befestigung des Ringkörpers 3 an der Spanneinheit 1,2 sicherstellt.1 shows an exemplary embodiment of a rotary belt tool according to the invention, in which the belt 5 is equipped with steel bristles of the same length. The flat thin endless band 5 is stretched as a ring on a rubber-elastic ring body 3, which is clamped axially deforming between the two flanges 1 and 2 of the clamping unit 1, 2 and attempts to expand radially as a result of its deformation, as a result of which the band 5 is clamped. The ring body 3 surrounds two mutually facing axial lugs 8, 9 on the two flanges 1 and 2, which center it and prevent its deformation towards the tool axis. Axially protrude into the two end faces of the ring body 3 on the flanges 1 and 2, formed axially, mutually facing projections, which ensures a reliable, positive driving connection and fastening of the ring body 3 to the clamping unit 1, 2.

Die Vorsprünge 11 treten mit abnehmendem Radius von der Werkzeugachse gleichmäßig zunehmend tief axial in den Ringkörper 3 aus gummielastischem Material ein. Einer der Flansche 2 weist eine zentrische axiale Durchgangsbohrung mit Einsenkung auf, die den Schaft und den Kopf einer Spannschraube aufnimmt. Die Spannschraube greift mit ihrem Gewindeschaft in ein Sacklochgewinde im axialen Ansatz des anderen Flansches 1 ein, so daß mit dem Anziehen der Spannschraube die beiden Flansche 1 und 2 axial gegeneinander und gegen den Ringkörper 3 dazwischen verspannt werden, wodurch wiederum das Band 5 auf dem Umfang des Ringkörpers 3 festgespannt wird. Radial ragen die beiden Flansche 1,2 etwas über den Durchmesser des Ringkörpers 3 hinaus, um so das Band 5 axial auf dem Ringkörper 3 einzuschließen. Der Flansch 1 mit dem Gewindesackloch in seinem axialen Ansatz 8 trägt auf seiner dem Ansatz abgewandten Seite einen Schaft 7, der dazu dient, das Werkzeug in einen Drehantrieb zu spannen, beispielsweise in das Spannfutter einer Handbohrmaschine. Der dabei z.B. formschlüssig am Flansch 1 befestigte Schaft 7 kann beispielsweise einen regelmäßigen Sechseckquerschnitt aufweisen. Die beiden einander zugewandten axialen Ansätze 8,9 der beiden Flansche 1,2 sind an ihren Enden durch einen radial verlaufenden Steg einerseits und eine entsprechende Nut andererseits so formschlüssig ineinandergefügt, daß die beiden Flansche 1,2 gegeneinander unverdrehbar aber axial verschiebbar sind. Die Borstenlänge entspricht bei diesem Werkzeug etwa dem halben Ringkörperdurchmesser bzw. etwa einem Viertel des Werkzeugdurchmessers. Die Spannschraube weist beispielsweise ein Innensechskant im Kopf auf. Der Schaft 7 ist beispielsweise durch radiale Deformation der Wand eines sein Ende aufnehmenden Befestigungsansatzes des Flansches 1 axial befestigt.With a decreasing radius from the tool axis, the projections 11 enter the ring body 3 made of rubber-elastic material in an increasingly deep axial manner. One of the flanges 2 has a central axial through-hole with a counterbore, which receives the shaft and the head of a clamping screw. The clamping screw engages with its threaded shaft in a blind hole thread in the axial approach of the other flange 1, so that when the clamping screw is tightened, the two flanges 1 and 2 are clamped axially against one another and against the annular body 3, which in turn causes the band 5 to be circumferential of the ring body 3 is clamped. Radially, the two flanges 1, 2 protrude somewhat beyond the diameter of the ring body 3 so as to axially enclose the band 5 on the ring body 3. The flange 1 with the threaded blind hole in its axial shoulder 8 carries on its side facing away from the shoulder a shaft 7 which serves to clamp the tool in a rotary drive, for example in the chuck of a hand drill. The e.g. Shaft 7 positively attached to flange 1 can have, for example, a regular hexagon cross section. The two mutually facing axial lugs 8, 9 of the two flanges 1, 2 are at their ends by a radial web, on the one hand, and a corresponding groove, on the other hand, so positively interlocked that the two flanges 1, 2 are non-rotatable but axially displaceable. The bristle length in this tool corresponds to approximately half the ring body diameter or approximately a quarter of the tool diameter. The clamping screw has, for example, a hexagon socket in the head. The shaft 7 is axially fixed, for example, by radial deformation of the wall of an attachment shoulder of the flange 1 receiving its end.

Figur 2 zeigt den aus gummielastischem Material bestehenden Ringkörper 3 des Werkzeuges mit seiner Bohrung zur Aufnahme der Flanschansätze 8,9 und mit den stirnseitigen Ausnehmungen für den Eingriff der Flansch- Vorsprünge 11, die mit kleinerem Radius gleichmäßig zunehmend größere Tiefe aufweisen. Die beiden Stirnflächen des Ringkörpers 3 sind sehr stumpfkegelig ausgebildet, d.h. die axiale Länge des Ringkörpers 3 nimmt mit zunehmendem Radius von der Achse aus geringfügig und gleichmäßig ob. Der Ringkörper 3 besitzt eine senkrecht zur Ringkörperachse stehende Symmetrieebene. Es sind z.B. sechs stirnseitige Ringkörperausnehmungen regelmäßig über den Umfang verteilt mit 30 Winkelgraden Teilung und radialem Öffnungswinkel sowie Kreissegmentbegrenzung am ineren und äußeren Durchmesser der Ausnehmungen.FIG. 2 shows the ring body 3 of the tool, which is made of rubber-elastic material, with its bore for receiving the flange projections 8, 9 and with the end-side recesses for the engagement of the flange projections 11, which have a uniformly increasing depth with a smaller radius. The two end faces of the ring body 3 are very frustoconical, ie the axial length of the ring body 3 increases slightly and evenly with increasing radius from the axis. The ring body 3 has a plane of symmetry perpendicular to the ring body axis. There are, for example, six end-side annular body recesses regularly distributed over the circumference with 30 degrees of division and radial opening angle as well as circle segment limitation on the inner and outer diameter of the recesses.

Figur 3 zeigt den Flansch 1 der Spanneinheit 1,2 mit dem Befestigungsansatz für den Sechskantschaft auf der einen Flanschseite für die Einspannung des Werkzeuges in einen Drehantrieb wie z.B. das Bohrfutter einer Bohrmaschine. Der Befestigungsansatz weist ein Sackloch mit Sechskantinnenquerschnitt auf. Auf der anderen Seite trägt der Flansch 1 den axialen Ansatz 8 mit dem Gewindesackloch, einer Führungsaussparung als zylindrische endseitige Einsenkung und radial außerhalb der Einsenkung je einem Mitnahmesteg. Auf der Befestigungsseite hat der Flansch 1 radial verlaufende, konisch radial nach außen abnehmende Versteifungsrippen. Auf der seite des axialen zylindrischen Ansatzes 8 trägt der Flansch 1 bei größerem Radius die gleichmäßig über den Umfang verteilten Vorsprünge 11, deren Höhe gegenüber dem Flansch 1 mit zunehmendem Radius gleichmäßig auf eine geringere Endhöhe abnimmt.Figure 3 shows the flange 1 of the clamping unit 1, 2 with the fastening attachment for the hexagonal shaft on one flange side for clamping the tool in a rotary drive, e.g. the drill chuck of a drill. The fastening attachment has a blind hole with a hexagonal inner cross section. On the other hand, the flange 1 carries the axial shoulder 8 with the threaded blind hole, a guide recess as a cylindrical end depression and radially outside the depression, each with a carrier web. On the fastening side, the flange 1 has radially extending stiffening ribs that decrease conically radially outwards. On the side of the axial cylindrical projection 8, the flange 1 carries, with a larger radius, the projections 11 which are evenly distributed over the circumference and whose height relative to the flange 1 decreases uniformly to a lower final height with increasing radius.

Figur 4 schließlich zeigt den anderen Flansch 2, der sich vom erstgenannten dadurch unterscheidet, daß anstatt des Befestigungsansatzes und des Gewindesackloches eine Durchgangsbohrung für die Spannschraube vorgesehen ist mit kegeliger Einsenkung am ansatzabgewandten Bohrungsende. Das freie Ansatzende besitzt eine Quernut bzw. einen Schlitz zur Aufnahme der Mitnahmestege quer zur Werkzeugachse. Dieser Flansch 2 hat keine radialen Versteifungsrippen.Figure 4 finally shows the other flange 2, which differs from the former in that, instead of the fastening lug and the threaded blind hole, a through hole for the clamping screw is provided with a conical depression at the end of the hole facing away from the lug. The free end of the attachment has a transverse groove or a slot for receiving the driving webs transverse to the tool axis. This flange 2 has no radial stiffening ribs.

Dieses vorstehend beschriebene und in den Figuren dargestellte Ausführungsbeispiel der Erfindung gibt nur eine mögliche Werkzeugausbildung wieder, die keinerlei Beschränkung gegenüber dem im Hauptanspruch mit seinen wesentlichen erfindungsgemäßen Merkmalen festgelegten Werkzeug mit sich bringen soll.This exemplary embodiment of the invention described above and shown in the figures represents only one possible tool design, which should not entail any restriction compared to the tool defined in the main claim with its essential features according to the invention.

Claims (47)

  1. A rotary brush tool for surface treatment, which consists of a brush belt carrier (1,2,3) with a central, axial drive shaft, in which the brush belt carrier (1,2,3) is formed from a clamping unit (1,2) having several parts and of an annular body (3) which is able to be resiliently expanded by means of the clamping unit (1,2) and the rotary brush tool additionally consists of a brush belt (5) with a flat cross-section, which is constructed as a closed ring, in which elements (6) are secured on the brush belt (5), which elements (6) project radially outwards from the covering surface of the brush belt (5), in which the brush belt (5) is secured in its full circumferential length on the entire circumference of the axial covering surface of the annular body (3) by radial bracing of the expanded annular body (3) against the inner covering surface of the brush belt,
    characterised in that
    the brush belt carrier (1,2,3) and the brush belt (5) preferably form a unit, that the brush belt (5) consists of flexible material and that the elements (6) are formed by U-shaped, rigid bristle bodies, supported so as to be adjustable and resiliently elastic radially inwards by the covering surface of the annular body (3), which bristle bodies are secured in the brush belt (5) so as to be non-rotatable to their own main axis and the free shanks of which penetrate at least partially radially outwards through the brush belt (5) arid project with their free ends predominantly radially outwards out of the brush belt (5), in which the alignment of the bristle bodies with respect to each other can be constructed so as to be changeable and adjustable through the covering surface form and the bracing of the annular body (3), and that the clamping unit (1,2) consists of two radial flanges (1 and 2) with a larger outer diameter compared with the annular body (3), of which each radial flange (1,2) has both an axial extension (8 or 9), preferably with a different diameter, to receive the annular body (3) coaxially, and also has axial projections (11) for the form-fitting engagement in end face recesses ( 12) of the annular body (3) and in which the axial extensions (8 and 9) are preferably form-fitting and preferably engage into each other so that the two flanges (1,2) are thereby movable towards each other in relation to the common axis so as to be non-rotatable but nevertheless movable axially relative to each other.
  2. A rotary belt tool according to Claim 1,
    characterised in that
    the bristles standing one behind the other in circumferential direction are arranged so as to be staggered axially laterally with respect to each other.
  3. A rotary belt tool according to Claim 1 or 2,
    characterised in that
    the bristle length differs over the axial length of the tool.
  4. A rotary belt tool according to one of Claims 1 to 3,
    characterised in that
    the projections (11) project with a decreasing radius from the tool axis uniformly increasing axially out from the end face of the flange.
  5. A rotary belt tool according to one of Claims 1 to 4,
    characterised in that
    the two end faces of the annular body (3) are constructed in the form of a truncated cone, i.e. the axial length of the annular body (3) decreases uniformly with an increasing radius out from the axis.
  6. A rotary belt tool according to one of Claims 1 to 5,
    characterised in that
    the bristles consist of metal wire, preferably of predominantly smooth metal wire in one piece, which is straight at least in parts, in particular in the region of the belt (5) and of the free end, having a round or profiled cross-section.
  7. A rotary belt tool according to one of Claims 1 to 6,
    characterised in that
    the bristles consist of non-metal, e.g. of plastic or glass.
  8. A rotary belt tool according to one of Claims 1 to 7,
    characterised in that
    the bristles are aligned approximately vertically to the tangential plane of the belt (5) and approximately radially to the axis of the belt carrier (1,2,3).
  9. A rotary belt tool according to one of Claims 1 to 7,
    characterised in that
    the main axis of the bristles is aligned obliquely to the tangential plane of the belt (5).
  10. A rotary belt tool according to one of Claims 1 to 6, 8 to 9,
    characterised in that
    the bristles consist of steel wire.
  11. A rotary belt tool according to one of Claims 1 to 6, 8 to 9,
    characterised in that
    the bristles consist of non-ferrous metal, e.g. of aluminium, brass, copper.
  12. A rotary belt tool according to one of Claims 1 to 11,
    characterised in that
    the bristles are ground and thereby sharpened on their free end facing away from the belt (5).
  13. A rotary belt tool according to one of Claims 1 to 12,
    characterised in that
    the bristles are ground on their free end vertically to their main axis.
  14. A rotary belt tool according to one of Claims 1 to 12,
    characterised in that
    the bristles are ground on their free end obliquely to their main axis.
  15. A rotary belt tool according to one of Claims 1 to 14,
    characterised in that
    thickenings, for example spherical thickenings, are situated at the free ends of the bristles.
  16. A rotary belt tool according to one of Claims 1 to 15,
    characterised in that
    the bristles are tempered or hardened at their end region facing away from the belt (5).
  17. A rotary belt tool according to one of Claims 1 to 16,
    characterised in that
    the bristles are coated, preferably at their free end region facing away from the belt (5).
  18. A rotary belt tool according to one of Claims 1 to 17,
    characterised in that
    the bristles are bent in circumferential direction at their end region facing away from the belt (5).
  19. A rotary belt tool according to one of Claims 1 to 18,
    characterised in that
    the bristles are constructed so as to be of differing length in circumferential direction and/or in axial direction of the tool.
  20. A rotary belt tool according to one of Claims 1 to 19,
    characterised in that
    the bristles have at least partially a different distance from each other in circumferential direction and/or in axial direction of the tool.
  21. A rotary belt tool according to one of Claims 1 to 20,
    characterised in that
    the bristles have uniform distances from each other in axial direction of the tool and over partial regions of the circumference of the to and that in circumferential direction of the tool equal bristle-free belt regions of equal partial circumferential length are constructed uniformly distributed over the circumference, e.g. three bristle-free belt regions at an angle of 120 degrees of angle.
  22. A rotary belt tool according to one of Claims 1 to 21,
    characterised in that
    the flange (1) carrying the drive shaft carries on its end face facing the drive shaft reinforcement ribs running radially, decreasing conically radially outwards.
  23. A rotary belt tool according to one of Claims 1 to 22,
    characterised in that
    the drive shaft is constructed with a regular hexagonal cross-section.
  24. A rotary belt tool according to one of Claims 1 to 23,
    characterised in that
    the elements (6) are constructed as bristle bodies with a tooth shape pointing in circumferential direction, e.g. for filing or milling.
  25. A rotary belt tool according to one of Claims 1 to 24,
    characterised in that
    the outer contour of the rotating tool in the axial direction of the tool corresponds to, and is adapted to, the cross-section contour of the workpiece which is to be treated so that rods with a profile cross-section or tubes are able to be treated in longitudinal direction over a cross-section contour region.
  26. A rotary belt tool according to one of Claims 1 to 25,
    characterised in that
    the covering surface contour of the belt carrier (1,2,3) in the axial direction of the tool is adapted or corresponds at least partially to the cross-section contour of the work piece which is to be treated.
  27. A rotary belt tool according to one of Claims 1 to 25,
    characterised in that
    the axial covering surface of the belt carrier (1,2,3) is constructed so as to be cylindrical.
  28. A rotary belt tool according to one of Claims 1 to 25,
    characterised in that
    the covering surface of the belt carrier (1,2,3) is constructed so as to be spherical in the axial direction of the tool.
  29. A rotary belt tool according to one of Claims 1 to 28,
    characterised in that
    the mean free bristle length corresponds approximately to half the annular body diameter, i.e. approximately one quarter of the outer diameter of the tool.
  30. A rotary belt tool according to one of Claims 1 to 29,
    characterised in that
    the belt (5) consists of fabric, preferably of fabric combined with or coated with rubber or plastic.
  31. A rotary belt tool according to one of Claims 1 to 30,
    characterised in that
    the belt (5) is composed radially of several layers.
  32. A rotary belt tool according to one of Claims 1 to 29 or 31 ,
    characterised in that
    the belt consists predominantly of plastic.
  33. A rotary belt tool according to one of Claims 1 to 29, 31 or 32,
    characterised in that
    the belt (5) consists of reinforced plastic, preferably reinforced with fabric.
  34. A rotary belt tool according to one of Claims 1 to 29,
    characterised in that
    the belt (5) consists of metal.
  35. A rotary belt tool according to one of Claims 1 to 34,
    characterised in that
    the belt (5) is clamped tightly in a detachable manner on the belt carrier (1,2,3).
  36. A rotary belt tool according to one of Claims 1 to 35,
    characterised in that
    the belt (5) is clamped tightly and held by clips on the belt carrier (1,2,3).
  37. A rotary belt tool according to one of the other Claims,
    characterised in that
    the belt (5) is clamped onto the covering surface of an annular body (3) and the annular body (3) is secured in a clamping unit (1,2), in which the annular body (3) together with the clamping unit (1,2) forms the belt carrier (1,2,3).
  38. A rotary belt tool according to one of Claims 1 to 37, in which the annular body consists of rubber elastic material,
    characterised in that
    the annular body (3) is able to be radially braced and expanded through conicity of the extension or extensions (8,9) with axial clamping of the clamping unit (1,2).
  39. A rotary belt tool according to one of Claims 1 to 37,
    characterised in that
    the annular body consists of a metal body which is, for example, radially slitted.
  40. A rotary belt tool according to one of Claims 1 to 39,
    characterised in that
    the axial extensions (8,9) engage into each other in a form-fitting manner by means of a slit-tongue or keyconnection (13) and preferably have cylindrical guide extensions (14) sliding into each other.
  41. A rotary belt tool according to one of Claims 1 to 39,
    characterised in that
    the axial extensions (8,9) engage into each other in a form-fitting manner by means of a non-round peg- holeconnection of a cross-section contour corresponding to each other and slidable into each other.
  42. A rotary belt tool according to one of' Claims 1 to 41,
    characterised in that
    the shaft (7) is secured by a form-fitting connection (15) on the flange (1).
  43. A rotary belt tool according to one of Claims 1 to 42,
    characterised in that
    the axial projections (11) on the flanges (1,2) are arranged uniformly over the circumference.
  44. A rotary belt tool according to one of Claims 1 to 43,
    characterised in that
    the shaft (7), starting from its free end, has a centrally arranged blind-end bore, which is preferably constructed as a regular hexagon in cross-section.
  45. A rotary belt tool according to one of Claims 1 to 44,
    characterised in that
    the bristles are arranged in circumferential direction in alignment one behind the other with a predominantly uniform regular spacing so that between all bristle rows in circumferential direction in each case a passage is formed which runs vertically to the tool axis or preferably in the manner of a thread obliquely to the tool axis, i.e. with an incline, and in which the passages preferably all have the same width.
  46. A rotary belt tool according to claim 2,
    characterised in that
    the bristles are arranged in circumferential direction one behind the other so that the next bristle following in circumferential direction is arranged so as to be staggered with respect to the front one by approximately the diameter of the bristle in axial direction of the tool.
  47. A rotary belt tool according to one of Claims 1 to 46,
    characterised in that
    the bristle length amounts to 1/4 to 1/3 of the tool diameter.
EP88905195A 1987-06-05 1988-06-05 Rotary brush tool Expired - Lifetime EP0347429B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19873718932 DE3718932A1 (en) 1987-06-05 1987-06-05 ROTATIONAL TAPE TOOL
DE3718932 1987-06-05
PCT/EP1988/000500 WO1988009707A1 (en) 1987-06-05 1988-06-05 Rotary brush tool

Publications (2)

Publication Number Publication Date
EP0347429A1 EP0347429A1 (en) 1989-12-27
EP0347429B1 true EP0347429B1 (en) 1996-01-31

Family

ID=6329168

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88905195A Expired - Lifetime EP0347429B1 (en) 1987-06-05 1988-06-05 Rotary brush tool

Country Status (5)

Country Link
EP (1) EP0347429B1 (en)
AT (1) ATE133598T1 (en)
AU (1) AU1802588A (en)
DE (3) DE3718932A1 (en)
WO (1) WO1988009707A1 (en)

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DE102016111265A1 (en) 2016-06-20 2017-12-21 Monti-Werkzeuge Gmbh Rotary drivable turning tool device
EP4219073A1 (en) 2022-01-26 2023-08-02 Monti-Werkzeuge GmbH Rotatable rotating tool device
US12091348B2 (en) 2017-07-12 2024-09-17 Corning Incorporated Apparatus and methods for manufacturing a glass substrate

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DE102016111265A1 (en) 2016-06-20 2017-12-21 Monti-Werkzeuge Gmbh Rotary drivable turning tool device
WO2017220338A1 (en) 2016-06-20 2017-12-28 Monti-Werkzeuge Gmbh Rotationally drivable rotary tool device
US12091348B2 (en) 2017-07-12 2024-09-17 Corning Incorporated Apparatus and methods for manufacturing a glass substrate
EP4219073A1 (en) 2022-01-26 2023-08-02 Monti-Werkzeuge GmbH Rotatable rotating tool device

Also Published As

Publication number Publication date
DE3854964D1 (en) 1996-03-14
DE8717788U1 (en) 1990-05-03
DE3718932A1 (en) 1988-12-22
ATE133598T1 (en) 1996-02-15
DE3718932C2 (en) 1990-06-13
EP0347429A1 (en) 1989-12-27
AU1802588A (en) 1989-01-04
WO1988009707A1 (en) 1988-12-15

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