EP0319756B1 - Tool-locking device for a rotary tool - Google Patents
Tool-locking device for a rotary tool Download PDFInfo
- Publication number
- EP0319756B1 EP0319756B1 EP88119268A EP88119268A EP0319756B1 EP 0319756 B1 EP0319756 B1 EP 0319756B1 EP 88119268 A EP88119268 A EP 88119268A EP 88119268 A EP88119268 A EP 88119268A EP 0319756 B1 EP0319756 B1 EP 0319756B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- locking
- locking device
- clamping
- hub
- 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
Links
Images
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D9/00—Wheels or drums supporting in exchangeable arrangement a layer of flexible abrasive material, e.g. sandpaper
- B24D9/04—Rigid drums for carrying flexible material
Definitions
- the invention relates to a rotatably driven tool clamping device with at least two clamping disks and a common clamping screw for clamping a tool sleeve between the two clamping disks.
- Tool sleeve means within the scope of the invention a sleeve-like tool, that is, a sleeve with a tool-forming sleeve outside. This can be, for example, an abrasive paper sleeve, a brush sleeve with radially projecting bristles, or the like.
- a tool chuck according to the preamble of claim 1 is e.g. known from CH-A-359 376.
- the invention has for its object to provide a rotatably drivable tool clamping device of the type described above, which, without a rubber core or the like supporting body, always ensures correct positioning and stabilization of the clamped tool sleeve, so that no deformations result from the stresses applied during use , i.e. a cylindrical tool surface is always available, even if the tool sleeve is made of flexible material and has no support core.
- the result of the measures of the invention is that tool sleeves made of flexible material surprisingly obtain a rotational stability that increases with increasing speed about their central axis of rotation, so that the result is a rigid work cylinder that can withstand the highest attacking stresses with a restoring effect without deformation in use enter. Hence is the rotational static on the resulting centrifugal forces, which also ensures perfect centering of the relevant tool sleeve in the ring grooves.
- the tool clamping device according to the invention makes the conventional use of rubber cores or similar support bodies for tool sleeves, even those made of flexible or flexible material, superfluous.
- the invention provides that the one clamping washer, the clamped tool sleeve on the outside overlapping axial webs and the other clamping washer in a corresponding distribution, for. B. 120 ° distribution, insertion recesses for the web ends of the axial webs. Thanks to these axial webs, the cylindrical shape of the tool sleeves is retained even with extremely high centrifugal forces.
- the tool sleeves can have longitudinal grooves for concealed accommodation of the axial webs, but the axial webs can run between the tool elements projecting over them on the sleeve surface.
- a centering cone can be attached to each of the ring grooves, which facilitate centering and positioning of the tool sleeves.
- the invention further proposes that the two clamping disks are distanced when the tool sleeve is clamped over a central shaft with a longitudinal bore for the passage of the clamping screw, one clamping disk the central shaft with a polygonal insertion recess at the end and the other clamping disk has a corresponding insertion pin.
- the polygonal insertion recess or the polygonal insertion mandrel are so matched to the circumferential distribution of the axial webs that the two clamping washers can be inserted quickly and properly with the interposition of the relevant tool sleeve without interfering manipulation and can be clamped by means of the clamping screw.
- the central shaft also ensures that the two clamping washers are always properly spaced, i.e. deformation of flexible tool sleeves is prevented during the clamping between the clamping washers.
- the axial webs and the central shaft ensure a rotationally fixed connection between the two tensioning disks, the axis of rotation always running through the tensioning disks and the central shaft or the tensioning screw.
- the clamping screw has a clamping nut designed as an adapter, which on the one hand can be rotatably inserted into an outside insertion recess of the clamping plate in question and on the other hand for connecting a rotary drive, for. B. a drill or angle grinder is set up.
- This adapter which is regularly designed as a merchant, can easily be inserted, for example, into the clamping head of a drilling machine or angle grinder and, moreover, has a threaded hole into which the clamping screw is screwed in at the end. At the same time, a rotationally fixed fit of the adapter is ensured in the insertion recess of the assigned clamping disk. - Under certain operating conditions, for example when working at low speeds, it may be advisable to use a stabilizing bushing to stabilize a tool sleeve made of flexible material insert with essentially the same width in the tool sleeve.
- Such a stabilizing bushing can also serve as an abutment for the tool elements, so that the tool elements are not pressed back into the sleeve interior as a result of the attacking stresses.
- the tool sleeve is made of flexible material. It can be z.
- the figures show a rotatably drivable tool clamping device with at least two clamping disks 1, 2 and a common clamping screw 3 for clamping a tool sleeve 4 between the two clamping disks 1, 2, the axis of rotation 5 passing through the clamping disks or clamping screw 3.
- the two clamping disks 1, 2 have concentric annular grooves 6 for clamping tool sleeves 4 of substantially the same diameter, i.e. each clamping disk 1, 2 each has at least one such annular groove 6.
- One clamping disk 1 has the clamped tool sleeve on the outside overlapping axial webs 7, the other clamping disk 2 in an appropriate distribution, e.g. B. 120 ° distribution, insertion recesses 8 for the web ends of the axial webs 7.
- the axial webs 7 limit the associated annular groove 6 on the outer circumference.
- a centering cone 9 connects to the ring grooves.
- a tool sleeve 4 made of flexible material is used. According to the embodiment, it is a brush sleeve with radially projecting bristles 17, for. B. U-shaped bristles, this tool sleeve 4 is bristle-free in the region of the crosspieces 7 overlapping it.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
- Lubricants (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
- Gripping On Spindles (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
Die Erfindung betrifft eine rotativ antreibbare Werkzeugspannvorrichtung mit zumindest zwei Spannscheiben und einer gemeinsamen Spannschraube zum Einspannen einer Werkzeughülse zwischen den beiden Spannscheiben. - Werkzeughülse meint im Rahmen der Erfindung ein hülsenartiges Werkzeug, also eine Hülse mit werkzeugbildender Hülsenaußenseite. Dabei kann es sich beispielsweise um eine Schleifhülse aus Schmirgelpapier, eine Bürstenhülse mit radial abstehenden Borsten oder dergleichen handeln. Eine Werkzeugspannvorrichtung gemäß Obergriff des Anspruchs 1 ist z.B. aus der CH-A-359 376 bekannt.The invention relates to a rotatably driven tool clamping device with at least two clamping disks and a common clamping screw for clamping a tool sleeve between the two clamping disks. - Tool sleeve means within the scope of the invention a sleeve-like tool, that is, a sleeve with a tool-forming sleeve outside. This can be, for example, an abrasive paper sleeve, a brush sleeve with radially projecting bristles, or the like. A tool chuck according to the preamble of
Bei Werkzeugspannvorrichtungen der vorbeschriebenen Ausführungsform bereitet insbesondere das Einspannen von biegsamen Werkzeughülsen, also von Werkzeughülsen aus biegeelastischem oder flexiblem Material, jedenfalls nicht hinreichend biegesteifem Material, häufig Schwierigkeiten. Das gilt nicht nur in bezug auf eine einwandfreie Positionierung bzw. Zentrierung zwischen den Spannscheiben, sondern auch hinsichtlich einer hinreichenden Stabilisierung, um im Einsatz die angreifenden Beanspruchungen ohne Deformationen aufnehmen zu können. Aus diesem Grunde finden regelmäßig Gummikerne Verwendung, welche in die Werkzeughülsen eingesetzt und gemeinsam mit den Werkzeughülsen zwischen den Spannscheiben eingespannt werden. Derartige Gummikerne werden gleichsam nachgedrückt, wenn sich das Hülsenmaterial nach längerem Einsatz dehnt, um stets eine hinreichende Abstützung der Werkzeughülsen auf den Gummikernen zu erreichen. Ein derartiges Nachdrücken ist jedoch problematisch, weil mit den Gummikernen auch eine Aufbauchung der Werkzeughülsen stattfindet, so daß für die verschiedenen Bearbeitungsprozesse eine ständig kleiner werdende Auflagefläche zur Verfügung steht, die überdies erhöhtem Verschleiß unterliegt. Aus der kleinflächigen Werkzeugauflage resultiert ein unwirtschaftlicher Werkzeugeinsatz. Der erhöhte Verschleiß ist überdies kostenaufwendig. Problematisch ist ferner, daß Gummikerne sich durch eine besonders hohe Rückstellfähigkeit auszeichnen müssen, um neue Werkzeughülsen einwandfrei aufnehmen zu können. - Diese Nachteile will die Erfindung vermeiden.In the case of tool clamping devices of the above-described embodiment, the clamping of flexible tool sleeves, that is to say tool sleeves made of flexible or flexible material, in any case not sufficiently rigid material, often causes difficulties. This applies not only in terms of proper positioning or centering between the spring washers, but also in terms of sufficient stabilization to be able to absorb the stresses in use without deformation. For this reason, rubber cores are regularly used, which are inserted into the tool sleeves and clamped together with the tool sleeves between the clamping disks. Such rubber cores are, as it were, pressed down when the sleeve material expands after a long period of use, in order to always achieve adequate support of the tool sleeves on the rubber cores. Such pressing up is problematic, however, because the rubber sleeves also cause the tool sleeves to bulge, so that for the various Machining processes there is a constantly decreasing contact surface, which is also subject to increased wear. The small-scale tool support results in an uneconomical use of tools. The increased wear is also expensive. Another problem is that rubber cores must be characterized by a particularly high resilience in order to properly accommodate new tool sleeves. The invention seeks to avoid these disadvantages.
Der Erfindung liegt die Aufgabe zugrunde, eine rotativ antreibbare Werkzeugspannvorrichtung der eingangs beschriebenen Art zu schaffen, die unter Verzicht auf einen Gummikern oder derlgeichen Stützkörper stets eine einwandfreie Positionierung und Stabilisierung der jeweils eingespannten Werkzeughülse gewährleistet, so daß aus den im Einsatz angreifenden Beanspruchungen keine Deformationen resultieren, also stets eine zylindrische Werkzeugoberfläche zur Verfügung steht, selbst wenn die Werkzeughülse aus biegsamem Material besteht und keinen Stützkern aufweist.The invention has for its object to provide a rotatably drivable tool clamping device of the type described above, which, without a rubber core or the like supporting body, always ensures correct positioning and stabilization of the clamped tool sleeve, so that no deformations result from the stresses applied during use , i.e. a cylindrical tool surface is always available, even if the tool sleeve is made of flexible material and has no support core.
Diese Aufgabe wird mit einer Werkzeugspannvorrichtung gemäß Anspruch 1 gelöst. Die Maßnahmen der Erfindung haben zur Folge, daß Werkzeughülsen aus biegsamem Material überraschenderweise eine mit wachsender Drehzahl um ihre zentrale Rotationsachse zunehmende Rotationsstabilität erhalten, so daß sich im Ergebnis ein biegesteifer Werkzylinder aufbaut, der höchsten angreifenden Beanspruchungen mit Rückstelleffekt gewachsen ist, ohne daß Deformationen im Einsatz eintreten. Offenbar ist die Rotationsstatbilisierung auf die sich einstellenden Zentrifugalkräfte zurückzuführen, welche überdies für eine einwandfreie Zentrierung der betreffenden Werkzeughülse in den Ringnuten sorgt. Jedenfalls macht die erfindungsgemäße Werkzeugspannvorrichtung den herkömmlichen Einsatz von Gummikernen oder dergleichen Stützkörper für Werkzeughülsen selbst aus biegsamem oder flexiblem Material überflüssig.This object is achieved with a tool clamping device according to
Weitere vorteilhafte Merkmale sind im folgenden aufgeführt. So sieht die Erfindung vor, daß die eine Spannscheibe die eingespannte Werkzeughülse außenseitig übergreifende Axialstege und die andere Spannscheibe in entsprechender Verteilung, z. B. 120° Verteilung, Einsteckausnehmungen für die Stegenden der Axialstege aufweist. Durch diese Axialstege bleibt die Zylinderform der Werkzeughülsen selbst bei extrem hohen Zentrifugalkräften erhalten. Dabei können die Werkzeughülsen Längsnuten zur verdeckten Aufnahme der Axialstege aufweisen, die Axialstege können aber zwischen den sie überkragenden Werkzeugelementen auf der Hülsenoberfläche verlaufen. Innenumfangseitig kann sich an die Ringnuten jeweils ein Zentrierkonus anschließen, welche das Zentrieren bzw. Positionieren der Werkzeughülsen erleichtern. - Weiter schlägt die Erfindung vor, daß die beiden Spannscheiben bei eingespannter Werkzeughülse über einen Zentralschaft mit Längsbohrung zum Hindurchführen der Spannschraube distanziert sind, wobei die eine Spannscheibe den Zentralschaft mit endseitig mehrkantiger Einsteckausnehmung und die andere Spannscheibe einen korrespondierenden Einsteckdorn aufweist. Die mehrkantige Einsteckausnehmung bzw. der mehrkantige Einsteckdorn sind derart auf die umfangseitige Verteilung der Axialstege abgestimmt, daß sich die beiden Spannscheiben ohne umständliche Manipulationen schnell und einwandfrei unter Zwischenschaltung der betreffenden Werkzeughülse gleichsam einstecken und mittels der Spannschraube verspannen lassen. Wie die Axialstege sorgt auch der Zentralschaft dafür, daß die beiden Spannscheiben stets einwandfrei distanziert sind, also eine Deformation von biegsamen Werkzeughülsen schon im Zuge des Einspannens zwischen den Spannscheiben unterbunden wird. Darüber hinaus sorgen die Axialstege und der Zentralschaft für eine drehfeste Verbindung zwischen den beiden Spannscheiben, wobei die Rotationsachse stets durch die Spannscheiben und den Zentralschaft bzw. die Spannschraube verläuft. - Weiter empfiehlt die Erfindung, daß die Spannschraube eine als Adapter ausgebildete Spannmutter aufweist, der einerseits in eine außenseitige Einsteckausnehmung der betreffenden Spannscheibe drehsicher einsteckbar und andererseits zum Anschluß eines Drehantriebes, z. B. eine Bohrmaschine oder Winkelschleifmamaschine eingerichtet ist. Dieser regelmäßig als Merhkant ausgebildete Adapter läßt sich beispielsweise unschwer in den Spannkopf einer Bohrmaschine oder Winkelschleifmaschine einsetzen und weist im übrigen eine Gewindebohrung auf, in welche die Spannschraube endseitig eingeschraubt wird. Gleichzeitig ist für einen drehfesten Sitz des Adapters in der Einsteckausnehmung der zugeordneten Spannscheibe gesorgt. - Unter bestimmten Betriebsverhältnissen, beispielsweise beim Arbeiten mit niedrigen Drehzahlen, kann es sich empfehlen, zur Stabilisierung einer Werkzeughülse aus biegsamem Material eine Stabilisierungsbuchse mit im wesentlichen gleicher Breite in die Werkzeughülse einzusetzen. Eine solche Stabilisierungsbuchse kann zugleich als Widerlager für die Werkzeugelemente dienen, damit die Werkzeugelemente also nicht infolge der angreifenden Beanspruchungen in das Hülseninnere zurückgedrückt werden. Denn vorzugsweise besteht die Werkzeughülse aus biegsamem Material. Dabei kann es sich z. B. um eine Bürstenhülse mit radial abstehenden Borsten, z. B. U-förmigen Borsten handeln, wobei diese Werkzeughülse im Bereich der sie übergreifenden Axialstege borstenfrei ist.Further advantageous features are listed below. Thus, the invention provides that the one clamping washer, the clamped tool sleeve on the outside overlapping axial webs and the other clamping washer in a corresponding distribution, for. B. 120 ° distribution, insertion recesses for the web ends of the axial webs. Thanks to these axial webs, the cylindrical shape of the tool sleeves is retained even with extremely high centrifugal forces. The tool sleeves can have longitudinal grooves for concealed accommodation of the axial webs, but the axial webs can run between the tool elements projecting over them on the sleeve surface. On the inner circumference, a centering cone can be attached to each of the ring grooves, which facilitate centering and positioning of the tool sleeves. - The invention further proposes that the two clamping disks are distanced when the tool sleeve is clamped over a central shaft with a longitudinal bore for the passage of the clamping screw, one clamping disk the central shaft with a polygonal insertion recess at the end and the other clamping disk has a corresponding insertion pin. The polygonal insertion recess or the polygonal insertion mandrel are so matched to the circumferential distribution of the axial webs that the two clamping washers can be inserted quickly and properly with the interposition of the relevant tool sleeve without interfering manipulation and can be clamped by means of the clamping screw. Like the axial webs, the central shaft also ensures that the two clamping washers are always properly spaced, i.e. deformation of flexible tool sleeves is prevented during the clamping between the clamping washers. In addition, the axial webs and the central shaft ensure a rotationally fixed connection between the two tensioning disks, the axis of rotation always running through the tensioning disks and the central shaft or the tensioning screw. - The invention further recommends that the clamping screw has a clamping nut designed as an adapter, which on the one hand can be rotatably inserted into an outside insertion recess of the clamping plate in question and on the other hand for connecting a rotary drive, for. B. a drill or angle grinder is set up. This adapter, which is regularly designed as a merchant, can easily be inserted, for example, into the clamping head of a drilling machine or angle grinder and, moreover, has a threaded hole into which the clamping screw is screwed in at the end. At the same time, a rotationally fixed fit of the adapter is ensured in the insertion recess of the assigned clamping disk. - Under certain operating conditions, for example when working at low speeds, it may be advisable to use a stabilizing bushing to stabilize a tool sleeve made of flexible material insert with essentially the same width in the tool sleeve. Such a stabilizing bushing can also serve as an abutment for the tool elements, so that the tool elements are not pressed back into the sleeve interior as a result of the attacking stresses. Because preferably the tool sleeve is made of flexible material. It can be z. B. a brush sleeve with radially projecting bristles, for. B. act U-shaped bristles, this tool sleeve is bristle-free in the area of the crosspieces overlapping it.
Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung näher erläutert; es zeigen:
- Fig. 1
- eine erfindungsgemäße Werkzeugspannvorrichtung in Explosivdarstellung mit einer Werkzeughülse und einer Stabilisierungsbuchse,
- Fig. 2
- den Gegenstand nach Fig. 1 in zusammengebautem Zustand ohne Werkzeughülse und Stabilisierungsbuchse,
- Fig. 3
- eine Spannscheibe für den Gegenstand nach Fig. 1 in Ansicht aus der Richtung des Pfeiles A in Fig. 1,
- Fig. 4
- eine Spannscheibe des Gegenstandes nach Fig. 1 in Richtung des Pfeiles B in Fig. 1,
- Fig. 5
- eine Spannschraube und eine als Adapter ausgebildete Spannmutter für den Gegenstand nach Fig. 1.
- Fig. 1
- a tool clamping device according to the invention in an exploded view with a tool sleeve and a stabilizing bush,
- Fig. 2
- 1 in the assembled state without tool sleeve and stabilizing bushing,
- Fig. 3
- 1 in a view from the direction of arrow A in Fig. 1,
- Fig. 4
- 1 in the direction of arrow B in Fig. 1,
- Fig. 5
- a clamping screw and a clamping nut designed as an adapter for the object according to FIG. 1.
In den Figuren ist eine rotativ antreibbare Werkzeugspannvorrichtung mit zumindest zwei Spannscheiben 1, 2 und einer gemeinsamen Spannschraube 3 zum Einspannen einer Werkzeughülse 4 zwischen den beiden Spannscheiben 1, 2 dargestellt, wobei die Rotationsachse 5 durch die Spannscheiben bzw. Spannschraube 3 verläuft. Die beiden Spannscheiben 1, 2 weisen konzentrische Ringnuten 6 zum Einspannen von im wesentlichen durchmessergleichen Werkzeughülsen 4 auf, also jede Spannscheibe 1, 2 jeweils zumindest eine solche Ringnut 6. Die eine Spannscheibe 1 weist die eingespannte Werkzeughülse außenseitig übergreifende Axialstege 7, die andere Spannscheibe 2 in entsprechender Verteilung, z. B. 120° Verteilung, Einsteckausnehmungen 8 für die Stegenden der Axialstege 7 auf. Die Axialstege 7 begrenzen die zugeordnete Ringnut 6 außenumfangseitig. Innenumfangseitig schließt sich jeweils ein Zentrierkonus 9 an die Ringnuten an. Die beiden Spannscheiben 1, 2 sind bei eingespannter Werkzeughülse 4 über einen Zentralschaft 10 mit Längsbohrung 11 zum Hindurchführen der Spannschraube 3 distanziert, wobei die eine Spannscheibe 1 den Zentralschaft 10 mit endseitig mehrkantiger Einsteckaufnehmung 12 und die andere Spannscheibe 2 einen entsprechenden mehrkantigen Einsteckdorn 13 aufweist. Die Spannschraube 3 weist eine als Adapter 14 ausgebildete Spannmutter auf. Der Adapter 14 ist einerseits in eine außenseitige Einsteckausnehmung 15 der betreffenden Spannscheibe 1 drehsicher einsteckbar und anderseits zum Anschluß eines Drehantriebes, z. B. einer Bohrmaschine eingerichtet. Die Einsteckausnehmung 15 ist zur Aufnahme von Adaptern 14 unterschiedlicher Größe bzw. Querschnitte eingerichtet. In die jeweilige Werkzeughülse 4 kann eine Stabilisierungsbuchse 16 mit im wesentlichen gleicher Breite eingesetzt werden. Bevorzugt wird eine Werkzeughülse 4 aus biegsamem Material eingesetzt. Nach dem Ausführungsbeispiel handelt es sich um eine Bürstenhülse mit radial abstehenden Borsten 17, z. B. U-förmigen Borsten, wobei diese Werkzeughülse 4 im Bereich der sie übergreifenden Axialstege 7 borstenfrei ist.The figures show a rotatably drivable tool clamping device with at least two
Claims (7)
- A tool-locking device for a rotary tool, having at least two locking plates with concentric annular grooves and a common locking screw to clamp the tool hub between the two locking plates, characterised in that the one locking plate (1) has axial tongues (7) which fit tightly into sockets (8) in the other locking plates (2), that the axial tongues (7) have outer peripheral faces which abut on the annular grooves (6), and extend externally over the locked tool hub (4), so that flexible material tool hubs (4) are clampable between the two locking plates (1,2) without a supporting core.
- A tool-locking device as in Claim 1, characterised in that the one locking plate (1) has the axial tongues (7) which extend externally over the locked tool hub (4), whilst the other locking plate (2) has the sockets (8) for the tips of the axial tongues (7), at the same spacing, e.g. at 120° to each other.
- A tool-locking device as in either of Claims 1 and 2, characterised in that a centering cone (9) is provided on the inside of, and adjacent to each of, the annular grooves (6).
- A tool-locking device as in either of Claims 1 and 2, characterised in that the two locking plates (1,2) with the tool hub clamped between them are positioned by a central shaft (10) having a longitudinal bore (11) to accommodate the locking screw (3), the one locking plate (1) holding the central shaft (10) and the other locking plate (2) having a polygonal plug (13) fitting into a corresponding socket (12) in the end of the central shaft.
- A tool-locking device as in any of Claims 1 to 4, characterised in that the locking screw (3) has a locking nut formed as an adapter (14), one end of which fits unrotatably into a recess (15) in the outer face of the relevant locking plate (1), whilst the other end is adapted for connection to rotary driving means, for example in a drilling or angular grinding machine.
- A tool-locking device as in any of Claims 1 to 5, characterised in that a stabilising sleeve (16) of substantially the same breadth as the tool hub (4) is inserted therein.
- A tool-locking device as in any of Claims 1 to 6, characterised in that the tool hub (4) is made from a flexible material, for example a brush-holder with radially spaced bristles, for example U-shaped bristles (17), no bristles being fitted in the areas over which the axial tongues (7) extend.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT88119268T ATE90258T1 (en) | 1987-12-11 | 1988-11-19 | ROTATIVE TOOL CLAMPING DEVICE. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19873741983 DE3741983A1 (en) | 1987-12-11 | 1987-12-11 | ROTATIVELY DRIVABLE TOOL CLAMP |
| DE3741983 | 1987-12-11 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0319756A2 EP0319756A2 (en) | 1989-06-14 |
| EP0319756A3 EP0319756A3 (en) | 1990-09-05 |
| EP0319756B1 true EP0319756B1 (en) | 1993-06-09 |
Family
ID=6342346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88119268A Expired - Lifetime EP0319756B1 (en) | 1987-12-11 | 1988-11-19 | Tool-locking device for a rotary tool |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5177830A (en) |
| EP (1) | EP0319756B1 (en) |
| JP (1) | JPH06309B2 (en) |
| KR (1) | KR940008051B1 (en) |
| AT (1) | ATE90258T1 (en) |
| CA (1) | CA1312193C (en) |
| DE (1) | DE3741983A1 (en) |
| ES (1) | ES2041768T3 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4036839A1 (en) * | 1990-11-19 | 1992-05-21 | Koeppen Renate | Rotary tool with hub and tool ring |
| DE4033458A1 (en) * | 1990-10-20 | 1992-05-07 | Koeppen Renate | Rotary tool with hub and tool ring |
| DE4326793C1 (en) * | 1993-08-10 | 1994-09-29 | Monti Werkzeuge Gmbh | Brush assembly which can be driven in rotation |
| JP3333627B2 (en) * | 1994-04-06 | 2002-10-15 | 株式会社マキタ | Tool fixing device for rotary grinding tools |
| DE29617206U1 (en) * | 1996-10-02 | 1996-12-05 | Osborn International Gmbh | Rotary brush for surface treatment of workpieces |
| KR100422676B1 (en) * | 2001-12-27 | 2004-03-12 | 한전기공주식회사 | Cross fire tube fixture apparatus |
| US6840848B1 (en) | 2002-12-04 | 2005-01-11 | Ralph E. Dyar | Bushings and abrasive wheel therewith |
| US6912755B2 (en) * | 2003-09-29 | 2005-07-05 | Lung-Hui Chen | Clamping device of a rotating tool |
| FR2897246A1 (en) * | 2006-02-16 | 2007-08-17 | Brosserie Cardot Mfbi Soc Par | Rotating brush for surface working, has support with two flanges each having shoulder, where shoulders are identical and are opposite so that brushing unit is maintained by friction on external face of shoulders after embedding on shoulders |
| DE102007048480B3 (en) * | 2007-10-09 | 2009-03-05 | SUNMATCH INDUSTRIAL CO., LTD., Zhubei | Contact brush-holding device for pneumatic grinding tool, has elastic circular sealing ring radially arranged in space between holding arms and curved plates and compressed by brush holder and brush belt |
| JP5301538B2 (en) * | 2008-06-06 | 2013-09-25 | アイオン株式会社 | Core for cleaning sponge roller |
| DE102009016151B4 (en) | 2009-04-05 | 2012-02-23 | Kratzenfabrik Mehlhorn Gmbh | Rotary brush tool for surface treatment |
| DE102016111265A1 (en) | 2016-06-20 | 2017-12-21 | Monti-Werkzeuge Gmbh | Rotary drivable turning tool device |
| CN110434759B (en) * | 2019-07-19 | 2021-06-04 | 安徽省潜山县富源特种制刷有限公司 | Anti-static polishing brush wheel |
| CN113649550B (en) * | 2021-07-20 | 2023-04-14 | 福清湘盛铸造材料有限公司 | Psammitolite coring device |
| EP4219073A1 (en) | 2022-01-26 | 2023-08-02 | Monti-Werkzeuge GmbH | Rotatable rotating tool device |
Family Cites Families (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US680418A (en) * | 1901-02-25 | 1901-08-13 | Ross Moyer Mfg Company | Hub for polishing-brushes.. |
| US1281777A (en) * | 1918-01-19 | 1918-10-15 | Frank H Hardy | Rotatable cylinder. |
| US1329857A (en) * | 1918-11-16 | 1920-02-03 | Rosner Rudolf | Milling and grinding tool holder |
| US2002370A (en) * | 1930-10-14 | 1935-05-21 | Osborn Mfg Co | Brush |
| US1990025A (en) * | 1930-10-14 | 1935-02-05 | Osborn Mfg Co | Brush |
| US2187350A (en) * | 1939-04-29 | 1940-01-16 | Raybestos Manhattan Inc | Resilient mounting for abrasive wheels |
| US2403813A (en) * | 1944-07-24 | 1946-07-09 | James J Manderscheid | Bushing for polishing wheels |
| US2756452A (en) * | 1953-02-06 | 1956-07-31 | Newark Brush Company | Wing type brush |
| CH359376A (en) * | 1955-11-07 | 1961-12-31 | Minnesota Mining & Mfg | Grinding device, use of the grinding device and method for making same |
| US2818692A (en) * | 1956-09-20 | 1958-01-07 | Russell W Bernstein | Abrasive grinding wheel |
| US2922262A (en) * | 1957-08-16 | 1960-01-26 | American Buff Company | Buffing apparatus |
| DE6604886U (en) * | 1964-05-30 | 1970-03-12 | Haracz E | QUICKLY CHANGEABLE BRUSH FOR MATTING DEVICES |
| DE1932946U (en) * | 1965-12-04 | 1966-02-17 | Fritz Goebel Fa | WIRE REEL, ESPECIALLY FOR ELECTRIC FENCE WIRE. |
| US3481017A (en) * | 1967-03-09 | 1969-12-02 | Milwaukee Dustless Brush Co | Core structures for rotary brushes |
| US3561173A (en) * | 1968-06-20 | 1971-02-09 | Merit Abrasive Prod | Quick change abrasive flap wheel with self-contained coupling means |
| DE1938262B2 (en) * | 1968-08-05 | 1972-04-13 | VEB Schraubenkombinat, χ 9000 Karl-Marx-Stadt | DETACHABLE SPOOL |
| DE6750630U (en) * | 1968-09-02 | 1969-01-09 | Hagen R Kautex Werk | ROPE DRUM |
| GB1514848A (en) * | 1977-05-05 | 1978-06-21 | Carborundum Co Ltd | Abrasive wheel |
| US4177611A (en) * | 1978-05-24 | 1979-12-11 | Carr Rollett Derrick | Sanding and buffing attachment for power tools |
| US4258509A (en) * | 1978-05-30 | 1981-03-31 | Standard Abrasives, Inc. | Flap-type rotary abrasive device |
| US4209873A (en) * | 1978-06-02 | 1980-07-01 | National Union Electric Corporation | Brush-beater for a vacuum cleaner and method for making the same |
| US4365448A (en) * | 1980-07-14 | 1982-12-28 | Byron Wilson | Sanding wheel |
| US4455788A (en) * | 1981-06-17 | 1984-06-26 | Minnesota Mining And Manufacturing Company | Abrasive wheel and drive spindle combination with improved attaching means |
| DE3300536A1 (en) * | 1983-01-10 | 1984-07-12 | Wilfried 6123 Bad König Eisele | Reel for wound material |
| CH659025A5 (en) * | 1983-03-17 | 1986-12-31 | Studer Ag Fritz Maschf | GRINDING MANDREL FOR GRINDING WHEELS. |
| US4627127A (en) * | 1985-02-13 | 1986-12-09 | Minnesota Mining And Manufacturing Company | Cylindrical brush |
| DE8623326U1 (en) * | 1986-08-30 | 1986-10-30 | Baudach, Gerd, 6301 Rabenau | Pneumatic sanding roller |
| DE3718932A1 (en) * | 1987-06-05 | 1988-12-22 | Detlef Koeppen | ROTATIONAL TAPE TOOL |
-
1987
- 1987-12-11 DE DE19873741983 patent/DE3741983A1/en active Granted
-
1988
- 1988-11-19 AT AT88119268T patent/ATE90258T1/en not_active IP Right Cessation
- 1988-11-19 ES ES198888119268T patent/ES2041768T3/en not_active Expired - Lifetime
- 1988-11-19 EP EP88119268A patent/EP0319756B1/en not_active Expired - Lifetime
- 1988-11-30 JP JP63301134A patent/JPH06309B2/en not_active Expired - Lifetime
- 1988-12-08 US US07/281,802 patent/US5177830A/en not_active Expired - Lifetime
- 1988-12-09 CA CA000585499A patent/CA1312193C/en not_active Expired - Lifetime
- 1988-12-10 KR KR1019880016481A patent/KR940008051B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP0319756A3 (en) | 1990-09-05 |
| DE3741983C2 (en) | 1989-09-14 |
| CA1312193C (en) | 1993-01-05 |
| ES2041768T3 (en) | 1993-12-01 |
| KR890009532A (en) | 1989-08-02 |
| DE3741983A1 (en) | 1989-06-22 |
| US5177830A (en) | 1993-01-12 |
| EP0319756A2 (en) | 1989-06-14 |
| JPH01257570A (en) | 1989-10-13 |
| JPH06309B2 (en) | 1994-01-05 |
| ATE90258T1 (en) | 1993-06-15 |
| KR940008051B1 (en) | 1994-09-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0319756B1 (en) | Tool-locking device for a rotary tool | |
| EP2052813B1 (en) | Plate grinder and grind plate for a plate grinder | |
| WO2007031256A1 (en) | Low-vibration tool holder | |
| DE4328987C1 (en) | Use of a grinding device for fine grinding motor vehicle brakes | |
| EP1782917A1 (en) | Mounting attachment for a grinding tool, grinding tool and support member for a grinding tool | |
| DE10064163C2 (en) | Arrangement for releasably attaching a grinding wheel or a grinding wheel package to a grinding spindle | |
| DE1652910B2 (en) | Rotatable grinding head | |
| EP0079518A2 (en) | Driven wheel for grinding or polishing the surface of coach-work or the like | |
| DE7903893U1 (en) | ROTARY GRINDING TOOL | |
| DE3336626C2 (en) | ||
| EP0294536B1 (en) | Clamping device for attaching a disc-like cutter to a work holder | |
| DE1937802C3 (en) | Grinding machine for ring-shaped workpieces | |
| DE3406667C2 (en) | ||
| DE4343758C2 (en) | Grinding wheel arrangement and method for its production | |
| DE1075804B (en) | Chuck for clamping one of two pieces of glass to be fused together | |
| DE1817257A1 (en) | Clearing device | |
| DE202015106009U1 (en) | Tool head for a reconditioning machine as well as rehabilitation milling machine | |
| DE3915199C1 (en) | Grinder for vehicle brake discs - incorporates opposed grinding wheels and reciprocating spindles | |
| DD258765A1 (en) | GRINDING BODY RECEPTION FOR ADDITIONAL OXYGEN SHEAR | |
| DE4232282A1 (en) | Hydraulic tool-clamp to rotary mandrel - has wedge-pieces thrust radially to force main body and annular piston apart | |
| DE19955152C2 (en) | Regrindable center hole for hardened rotating parts | |
| DE60300303T2 (en) | Device with tool-carrying arm | |
| DE19937669C2 (en) | Grinding roller for stone processing | |
| EP2045039A1 (en) | Grinding or polishing disk with thread element | |
| DE2560482C2 (en) | Slotting or mortising machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH ES FR GB IT LI NL SE |
|
| 17P | Request for examination filed |
Effective date: 19890419 |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH ES FR GB IT LI NL SE |
|
| 17Q | First examination report despatched |
Effective date: 19920109 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH ES FR GB IT LI NL SE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19930609 Ref country code: BE Effective date: 19930609 Ref country code: NL Effective date: 19930609 |
|
| REF | Corresponds to: |
Ref document number: 90258 Country of ref document: AT Date of ref document: 19930615 Kind code of ref document: T |
|
| ITF | It: translation for a ep patent filed |
Owner name: ING. A. GIAMBROCONO & C. S.R.L. |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19930621 |
|
| ET | Fr: translation filed | ||
| NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Effective date: 19931119 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CH Effective date: 19931130 Ref country code: LI Effective date: 19931130 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2041768 Country of ref document: ES Kind code of ref document: T3 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20071129 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20071126 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20071120 Year of fee payment: 20 Ref country code: FR Payment date: 20071122 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20081118 |
|
| REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20081120 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20081120 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20081118 |