EP1697086B1 - Insertion tool for an angle grinder - Google Patents
Insertion tool for an angle grinder Download PDFInfo
- Publication number
- EP1697086B1 EP1697086B1 EP04820605A EP04820605A EP1697086B1 EP 1697086 B1 EP1697086 B1 EP 1697086B1 EP 04820605 A EP04820605 A EP 04820605A EP 04820605 A EP04820605 A EP 04820605A EP 1697086 B1 EP1697086 B1 EP 1697086B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fastening means
- hub
- fastening
- driving device
- application tool
- 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 - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B45/00—Means for securing grinding wheels on rotary arbors
- B24B45/006—Quick mount and release means for disc-like wheels, e.g. on power tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
- B24D7/00—Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor
- B24D7/16—Bushings; Mountings
Definitions
- the invention relates to an insert tool for an angle grinder according to the preamble of claim 1.
- the invention is based on a system comprising an insert tool with a hub and a driving device for an angle grinder according to the preamble of claim 9.
- a generic forming tool for an angle grinder having a hub with a plurality of fasteners formed by recesses.
- the insert tool can advantageously be clamped by means of a quick-release system on a driving device of the angle grinder, which is also known from the above-mentioned document.
- the invention is based on an insert tool for an angle grinder which has a hub with at least one fastening means for securing the hub to a driving flange of the angle grinder and having a second fastening means.
- the invention is also based on a system consisting of an insert tool with a hub and an entrainment device for an angle grinder, wherein the hub has at least a first attachment means and the entrainment device at least a first attachment member for cooperation with the first attachment means and for securing the hub to the driving device wherein the hub has a second attachment means.
- the first fastening means is arranged on a pitch circle with a radius between 12 mm and 25 mm
- the second fastening means has a retaining area formed by a first elongated hole with a width of 3.5 mm to 4.5 mm and a release area with has a width of 6.5 mm to 7.5 mm
- the second fastening means is formed from the oblong holes, each adjacent to each other along one of its long sides.
- the proposed dimension of the pitch circle and in particular by the other, proposed in the dependent claims dimensions, configurations and positioning an insert tool can be achieved, especially with a quick-release system safely and easily mounted on an angle grinder and also allows a handy use with sufficient working material , It can be achieved advantageously in itself and with the driving flange tuned insert tool, and it can be achieved during a labor input with the insert tool advantageous force distributions in the insert tool and driving flange.
- the hub may be made of the material of the grinding wheel or of another material, such as a steel sheet.
- FIG. 1 shows an angle grinder 2 from above with a mounted in a housing 4, not shown electric motor.
- the angle grinder 2 can be guided by means of two handles 6, 8.
- a not shown gear in a gear housing 10 and also not visible drive shaft an insert tool 12 in the direction of rotation 14 can be driven.
- FIG. 1 a hub 16 of the insert tool 12 is visible.
- This hub is in FIG. 2 shown in a perspective view.
- Around the hub 16 is an in FIG. 1 visible abrasive body 18 of the insert tool 12 which is fastened by means of fastening means 20 to the hub 16.
- the fastening means 20 are arranged in a radially outer region of the hub 16 on a second pitch circle which extends completely in the region of hub material. Thus, no recesses are arranged between the fastening means 20, as a result of which a stable outer region of the hub 16 can be achieved.
- the hub 16 of the trained as a roughing insert tool 12 is provided for mounting on a driving device 22 of the angle grinder 2, which in FIG. 3 is shown.
- This driving device 22 comprises a centering collar 24, on which the hub 16 can be plugged with a centering opening 26.
- the hub 16 is located with its radially innermost part on three Kodiererhebonne 28, which extend from the centering collar 24 radially outward.
- On this Kodiererhebitch 28 resting the hub 16 can be rotated in the tangential direction 30 until three radial recesses 32 cover the three Kodiererhebitch 28. In this position, the hub 16 falls - and with it the entire insert tool 12 - slightly lower until it comes to lie with its inner plate 34 on three locking pins 36.
- These three locking pins 36 are spring-loaded and can be pressed by an operator of the angle grinder 2 by pressing the insert tool 12 down. Now, the hub 16 can be pressed with its lower plate 34 to a bottom 38 of the driving device 22, whereby executed as a hook fastening elements 40 pass through openings 42 in the lower plate 34 of the hub 16.
- the hub 16 can now be rotated clockwise, whereby a radially innermost portion 44 of the lower plate 34 can be passed under the Kodiererhebept 28.
- a through-openings 42 respectively adjacent holding portion 46 of the lower plate 34 is pushed under an obliquely oriented ramp member 48 of the fastener 40, wherein the fastener 40 is pulled against the force of a biased spring, not shown, something up.
- a detailed description of the driving device 22, the spring-loaded locking pin 36 and the fasteners 40 can be found in the above-mentioned WO 03/097299 ,
- FIG. 4 shows the hub 16 of the insert tool 12 in a plan view.
- the hub 16 comprises three identical, designed as a cup-shaped depressions 52 first fastening means which protrude in the plan view of the drawing plane.
- the pot-like recesses 52 have a circular cross section, the center of which lies on a pitch circle 54 which has a radius 56 of 16.7 mm.
- the pot-shaped depressions 52 have a circular cross section with an inner diameter 58 of 6 mm (FIG. FIG. 5 ) and an internal depth 60 of 3.85 mm.
- the hub 16 also includes three identically designed apertures 42 as second attachment means. These second fastening means are formed in the form of two oblong holes, which are tangential 30 and parallel to each other are aligned. The oblong holes are substantially rectangular and each adjacent to one another at one of their long sides partially.
- the openings 42 comprise a first, formed by the radially inner slot holding portion 62 which has a radial width 64 of 3.9 mm.
- the opening 42 In a release region 66 formed by both oblong holes, the opening 42 has a radial width 68 of 7.1 mm.
- the radial width 72 of the opening 42 is 3.4 mm.
- the three apertures 42 each extend over an angular range 74 of approximately 60 °.
- the openings 42 furthermore have blocking elements 76 designed as bulges, which delimit the radially inner slot and project into the release area 66.
- the blocking elements 76 in turn have a stop 78, which is provided to limit a release movement of the fastening element 40 in the opening 42.
- openings 42 are formed by two rectangular slots, a particularly stable mounting of the hub 16 on the driving device 22 in the axial direction can be achieved with simple and inexpensive executable fasteners 40.
- 28 can be effectively prevented at the dimensions given a laterally reversed mounting of the insert tool 12 on an identical driving flange without Kod michserhebept 28, since the fastener 40 with its dimensions given below by a laterally arranged breakthrough 42 is not feasible.
- the dimension of the aperture 42 and its position relative to the recesses 32 is designed so that when abutting the web 82 to the stop 78, the recesses 32 are aligned with the Kodiererhebept 28. In this position, the hub 16 can be lifted from the driving device 22. Due to the shaping and dimensioning of the opening 42 with the blocking element 76 and the third region 70, the fastening element 40 may have the holding element 50, which projects further in the release direction than the web 82 of the fastening element 40. This enables a particularly simple and inexpensive production of a stable fastening element 40 and a stable mounting of the hub 16 on the driving device 22nd
- the hub 16 is configured in its radially inner region with a cup-shaped recess 84 with a cup depth 86 of about 6 mm and an inner diameter 92 of 47 mm. From a Napfinnenwand 88 formed thereby, the openings 42 are removed with a minimum distance 90 of about 2 mm. Through this relatively far radially outward positioning of the apertures 42 within the hub 16 may be a stable axial fixation of the hub 16 on the driving device 22 can be achieved by the holding elements 50.
- the detent pins 36 When engaging the detent pins 36 designed as fastening elements into the depressions 52, the detent pins 36, which have an outer diameter 94 of 5.5 mm, are arranged in the depressions 52 with a clearance of 0.5 mm.
- the locking pin 36 engage in the recesses 52, even if the locking pin 36 or the recesses 52 are heavily contaminated. In this way, a secure fixation of the insert tool 12 in the tangential direction 30 can be ensured even with a heavily soiled insert tool 12.
- the hub 16 can not be centered by the locking pins 36 are held on the driving device 22.
- Such a necessary centering is achieved by the dimensioning of the Zentrier tellbruchs 26 and the Zentrierbunds 24, the game to each other by about a factor of 17 is smaller than the clearance between the locking pin 36 and the recesses 52.
- the inner radius 96 of the Zentrier tellbruchs 26 is 11.1 mm while the outer radius 98 of the centering collar 24 is 11.115 mm. Since both the centering collar 24 and the centering opening 26 are configured circular, the clearance between centering collar 24 and centering opening 26 is 0.03 mm.
- the locking pins 36 Due to the relatively large clearance between the locking pin 36 and the recesses 52 which can be achieved by an elastic deformation bearing surface between the locking pin 36 and the Recesses 52 during operation of the insert tool 12 is very small.
- the locking pins 36 are made of a hardened steel, whereas the recesses 52 of the hub 16 are formed from an uncured metal, such as an unhardened steel sheet.
- the locking pin 36 can press into the recesses 52 and deform it slightly, so that a sufficiently large contact surface between locking pin 36 and recess 52 is formed by the wear of the locking pin 36 even with strong vibration of the insert tool 12 low is.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Description
Die Erfindung geht aus von einem Einsatzwerkzeug für einen Winkelschleifer nach dem Oberbegriff des Anspruchs 1. Außerdem geht die Erfindung aus von einem System aus einem Einsatzwerkzeug mit einer Nabe und einer Mitnahmevorrichtung für einen Winkelschleifer nach dem Oberbegriff des Anspruchs 9.The invention relates to an insert tool for an angle grinder according to the preamble of claim 1. In addition, the invention is based on a system comprising an insert tool with a hub and a driving device for an angle grinder according to the preamble of claim 9.
Aus der
Die Erfindung geht aus von einem Einsatzwerkzeug für einen Winkelschleifer, das eine Nabe mit zumindest einem Befestigungsmittel zum Befestigen der Nabe an einem Mitnahmeflansch des Winkelschleifers und mit einem zweiten Befestigungsmittel aufweist.The invention is based on an insert tool for an angle grinder which has a hub with at least one fastening means for securing the hub to a driving flange of the angle grinder and having a second fastening means.
Die Erfindung geht außerdem aus von einem System aus einem Einsatzwerkzeug mit einer Nabe und einer Mitnahmevorrichtung für einen Winkelschleifer, wobei die Nabe zumindest ein erstes Befestigungsmittel und die Mitnahmevorrichtung zumindest ein erstes Befestigungselement zum Zusammenwirken mit dem ersten Befestigungsmittel und zum Befestigen der Nabe an der Mitnahmevorrichtung aufweist wobei die Nabe ein zweites Befestigungsmittel aufweist.The invention is also based on a system consisting of an insert tool with a hub and an entrainment device for an angle grinder, wherein the hub has at least a first attachment means and the entrainment device at least a first attachment member for cooperation with the first attachment means and for securing the hub to the driving device wherein the hub has a second attachment means.
Es wird vorgeschlagen, dass das erste Befestigungsmittel auf einem Teilkreis mit einem Radius zwischen 12 mm und 25 mm angeordnet ist, das zweite Befestigungsmittel einen von einem ersten Langlöch gebildeten Haltebereich mit einer Breite von 3,5 mm bis 4,5 mm und einen Lösebereich mit einer Breite von 6,5 mm bis 7,5 mm aufweist und das zweite Befestigungsmittel aus zum Langlöchern gebildet ist, die entlang jeweils einer ihrer langer Seiten teilweise aneinander angrenzen.It is proposed that the first fastening means is arranged on a pitch circle with a radius between 12 mm and 25 mm, the second fastening means has a retaining area formed by a first elongated hole with a width of 3.5 mm to 4.5 mm and a release area with has a width of 6.5 mm to 7.5 mm and the second fastening means is formed from the oblong holes, each adjacent to each other along one of its long sides.
Durch die vorgeschlagene Dimension des Teilkreises sowie insbesondere auch durch die weiteren, in den Unteransprüchen vorgeschlagenen Dimensionen, Ausgestaltungen und Positionierungen kann ein Einsatzwerkzeug erreicht werden, das insbesondere mit einem Schnellspannsystem sicher und einfach an einen Winkelschleifer montierbar ist und zudem einen handlichen Einsatz mit ausreichendem Arbeitsmaterial ermöglicht. Es kann ein vorteilhaft in sich und mit dem Mitnahmeflansch abgestimmtes Einsatzwerkzeug erzielt werden, und es können während eines Arbeitseinsatzes mit dem Einsatzwerkzeug vorteilhafte Kräfteverteilungen im Einsatzwerkzeug und zum Mitnahmeflansch erreicht werden.The proposed dimension of the pitch circle and in particular by the other, proposed in the dependent claims dimensions, configurations and positioning an insert tool can be achieved, especially with a quick-release system safely and easily mounted on an angle grinder and also allows a handy use with sufficient working material , It can be achieved advantageously in itself and with the driving flange tuned insert tool, and it can be achieved during a labor input with the insert tool advantageous force distributions in the insert tool and driving flange.
Die erfindungsgemäße Lösung kann bei sämtlichen, dem Fachmann als geeignet erscheinenden Einsatzwerkzeugen für Winkelschleifer angewendet werden, wie z.B. bei Gummitellern,The solution according to the invention can be used in all application tools for angle grinders which appear to the person skilled in the art as suitable, for example in the case of rubber plates,
Trennscheiben, Schruppscheiben, Schleifscheiben usw. Die Nabe kann aus dem Material des Schleifkörpers oder aus einem anderen Material, wie beispielsweise einem Stahlblech, gefertigt sein.Cutting wheels, grinding wheels, grinding wheels, etc. The hub may be made of the material of the grinding wheel or of another material, such as a steel sheet.
Weitere Vorteile ergeben sich aus der folgenden Zeichnungsbeschreibung. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Die Zeichnungsbeschreibung enthält zahlreiche voneinander unabhängige Merkmale, die die erfindungsgemäße Lösung jeweils unabhängig voneinander verbessern. Die erfindungsgemäße Lösung kann durch eines oder mehrere dieser Merkmale verbessert werden, ohne dass zwangsläufig weitere Merkmale aus der Zeichnungsbeschreibung hinzugefügt werden müssten.Further advantages emerge from the following description of the drawing. In the drawing, an embodiment of the invention is shown. The drawing description contains numerous independent features that improve the solution according to the invention, each independently. The solution according to the invention can be improved by one or more of these features, without necessarily having to add further features from the drawing description.
Es zeigen:
- Fig. 1
- einen Winkelschleifer mit einer Trennscheibe,
- Fig. 2
- eine Nabe der Trennscheibe des Winkelschleifers,
- Fig. 3
- einen Mitnahmeflansch des Winkelschleifers,
- Fig. 4
- eine Draufsicht auf die Nabe aus
,Figur 2 - Fig. 5
- eine Schnittdarstellung der Nabe aus
undFigur 2 - Fig. 6
- eine Draufsicht auf den Mitnahmeflansch aus
.Figur 2
- Fig. 1
- an angle grinder with a cutting disc,
- Fig. 2
- a hub of the blade of the angle grinder,
- Fig. 3
- a driving flange of the angle grinder,
- Fig. 4
- a plan view of the hub
FIG. 2 . - Fig. 5
- a sectional view of the hub
FIG. 2 and - Fig. 6
- a plan view of the driving flange
FIG. 2 ,
Wird der Winkelschleifer 2 nicht wie in
Die Nabe 16 des als Schruppscheibe ausgebildeten Einsatzwerkzeugs 12 ist zur Montage auf eine Mitnahmevorrichtung 22 des Winkelschleifers 2 vorgesehen, der in
Diese drei Rastbolzen 36 sind federbelastet und können von einem Bediener des Winkelschleifers 2 durch Druck auf das Einsatzwerkzeug 12 nach unten gedrückt werden. Nun kann die Nabe 16 mit ihrem unteren Blech 34 bis auf einen Boden 38 der Mitnahmevorrichtung 22 gedrückt werden, wodurch als Haken ausgeführte Befestigungselemente 40 durch Durchbrüche 42 im unteren Blech 34 der Nabe 16 hindurchtreten.These three
Zum Befestigen des Einsatzwerkzeugs 12 auf der Mitnahmevorrichtung 22 kann die Nabe 16 nun im Uhrzeigersinn gedreht werden, wodurch ein radial innerster Bereich 44 des unteren Blechs 34 unter den Kodiererhebungen 28 hindurchgeführt werden kann. Gleichzeitig wird ein den Durchbrüchen 42 jeweils benachbarter Haltebereich 46 des unteren Blechs 34 unter ein schräg ausgerichtetes Rampenelement 48 des Befestigungselements 40 geschoben, wobei das Befestigungselement 40 entgegen der Kraft einer nicht dargestellten vorgespannten Feder etwas nach oben gezogen wird. Eine genaue Beschreibung der Mitnahmevorrichtung 22, der federbelasteten Rastbolzen 36 und der Befestigungselemente 40 findet sich in der eingangs erwähnten
Beim Weiterdrehen des Einsatzwerkzeugs 12 im Uhrzeigersinn wird der Haltebereich 46 unter ein parallel zum Boden 38 der Mitnahmevorrichtung 22 ausgerichtetes Halteelement 50 geschoben, das die Nabe 16 mit Hilfe der vorgespannten und nicht dargestellten Feder auf den Boden 38 drückt. Bei Erreichen einer Befestigungsstellung kommen die Rastbolzen 36 mit topfartigen Vertiefungen 52 der Nabe 16 in Deckung und rasten durch ein Hochschnellen in diese Vertiefungen 52 ein. Die Vertiefungen 52 sind als Ausformungen des unteren Blechs 34 ausgeführt, so dass sie in
Die Nabe 16 umfasst außerdem drei identisch ausgeführte Durchbrüche 42 als zweite Befestigungsmittel. Diese zweiten Befestigungsmittel sind in Form von zwei Langlöchern gebildet, die in Tangentialrichtung 30 und parallel zueinander ausgerichtet sind. Die Langlöcher sind im Wesentlichen rechteckig und grenzen jeweils an einer ihrer langen Seiten teilweise aneinander. Die Durchbrüche 42 umfassen einen ersten, vom radial inneren Langloch gebildeten Haltebereich 62, der eine radiale Breite 64 von 3,9 mm aufweist. In einem von beiden Langlöchern gebildeten Lösebereich 66 weist der Durchbruch 42 eine radiale Breite 68 von 7,1 mm auf. In einem dritten, ebenfalls zum Lösebereich 66 zugehörigen Bereich 70 beträgt die radiale Breite 72 des Durchbruchs 42 3,4 mm. In Tangentialrichtung 30 erstrecken sich die drei Durchbrüche 42 jeweils über einen Winkelbereich 74 von rund 60°. Die Durchbrüche 42 weisen des Weiteren als Ausbuchtungen ausgeführte Sperrelemente 76 auf, die jeweils das radial innere Langloch begrenzen und in den Lösebereich 66 hineinragen. Die Sperrelemente 76 wiederum weisen einen Anschlag 78 auf, der zur Begrenzung einer Lösebewegung des Befestigungselements 40 im Durchbruch 42 vorgesehen ist.The
Indem die Durchbrüche 42 durch zwei rechteckige Langlöcher gebildet sind, kann eine besonders stabile Halterung der Nabe 16 auf der Mitnahmevorrichtung 22 in Axialrichtung mit einfach und preiswert ausführbaren Befestigungselementen 40 erreicht werden. Außerdem kann bei den angegebenen Bemaßungen eine seitenverkehrte Montage des Einsatzwerkzeugs 12 auf einen identischen Mitnahmeflansch ohne Kodierungserhebungen 28 wirksam verhindert werden, da das Befestigungselement 40 mit seinen unten angegebenen Maßen durch einen seitenverkehrt angeordneten Durchbruch 42 nicht durchführbar ist.By the
Zum Lösen der Nabe 16 von der Mitnahmevorrichtung 22, die in
Die Nabe 16 ist in ihrem radial inneren Bereich mit einer napfförmigen Vertiefung 84 mit einer Napftiefe 86 von etwa 6 mm und einem inneren Durchmesser 92 von 47 mm ausgestaltet. Von einer hierdurch gebildeten Napfinnenwand 88 sind die Durchbrüche 42 mit einem Mindestabstand 90 von etwa 2 mm entfernt. Durch diese relativ weit radial außen gelegene Positionierung der Durchbrüche 42 innerhalb der Nabe 16 kann eine stabile axiale Fixierung der Nabe 16 auf der Mitnahmevorrichtung 22 durch die Halteelemente 50 erreicht werden.The
Beim Einrasten der als Befestigungselemente ausgestalteten Rastbolzen 36 in die Vertiefungen 52 sind die Rastbolzen 36, die einen Außendurchmesser 94 von 5,5 mm aufweisen, mit einem Spiel von 0,5 mm in den Vertiefungen 52 angeordnet. Durch dieses relativ große Spiel kann erreicht werden, dass die Rastbolzen 36 auch dann in die Vertiefungen 52 einrasten, wenn die Rastbolzen 36 oder die Vertiefungen 52 stark verschmutzt sind. Hierdurch kann eine sichere Fixierung des Einsatzwerkzeugs 12 in Tangentialrichtung 30 auch bei einem stark verschmutzten Einsatzwerkzeug 12 sichergestellt werden.When engaging the detent pins 36 designed as fastening elements into the
Durch das der Betriebssicherheit dienende große Spiel zwischen den Rastbolzen 36 und den Vertiefungen 52 kann die Nabe 16 durch die Rastbolzen 36 nicht zentriert auf der Mitnahmevorrichtung 22 gehalten werden. Eine solche notwendige Zentrierung wird durch die Bemaßung des Zentrierdurchbruchs 26 und des Zentrierbunds 24 erreicht, deren Spiel zueinander um etwa den Faktor 17 kleiner ist als das Spiel zwischen den Rastbolzen 36 und den Vertiefungen 52. Der Innenradius 96 des Zentrierdurchbruchs 26 beträgt 11,1 mm, wohingegen der Außenradius 98 des Zentrierbunds 24 11,115 mm beträgt. Da sowohl der Zentrierbund 24 als auch der Zentrierdurchbruch 26 kreisförmig ausgestaltet sind, beträgt das Spiel zwischen Zentrierbund 24 und Zentrierdurchbruch 26 0,03 mm.Due to the operational reliability serving large game between the locking
Durch das relativ große Spiel zwischen den Rastbolzen 36 und den Vertiefungen 52 ist die durch eine elastische Verformung erzielbare Auflagefläche zwischen den Rastbolzen 36 und den Vertiefungen 52 im Betrieb des Einsatzwerkzeugs 12 sehr klein. Damit ein hierdurch bedingter Verschleiß der Rastbolzen 36 möglichst gering bleibt, sind die Rastbolzen 36 aus einem gehärteten Stahl gefertigt, wohingegen die Vertiefungen 52 der Nabe 16 aus einem ungehärteten Metall, beispielsweise einem ungehärteten Stahlblech, gebildet sind. Während des Betriebs des Einsatzwerkzeugs 12 können sich die Rastbolzen 36 in die Vertiefungen 52 eindrücken und diese etwas verformen, so dass eine hinreichend große Auflagefläche zwischen Rastbolzen 36 und Vertiefung 52 entsteht, durch die ein Verschleiß der Rastbolzen 36 auch bei starker Vibration des Einsatzwerkzeugs 12 gering ist.Due to the relatively large clearance between the locking
Claims (14)
- Application tool (12) for an angle grinder (2) which has a hub (16) having at least one first fastening means for fastening the hub (16) to a driving device (22) of the angle grinder (2) and having a second fastening means, characterized in that the first fastening means is arranged on a pitch circle (54) having a radius (56) of between 12 mm and 25 mm, the second fastening means has a retaining region (62), formed by a first elongated hole and having a width of 3.5 mm to 4.5 mm, and a releasing region (66) having a width of 6.5 mm to 7.5 mm, and the second fastening means is formed from two elongated holes which partly adjoin one another in each case along their long sides.
- Application tool (12) according to Claim 1,
characterized in that the first fastening means has a circular cross section having a centre point on a pitch circle (54) having a radius (56) of 16.5 mm to 17.0 mm. - Application tool (12) according to Claim 1 or 2, characterized in that the first fastening means is designed as a pot-shaped recess (52) having an inside diameter (58) of 5.7 mm to 6.5 mm.
- Application tool (12) according to one of the preceding claims, characterized in that the first fastening means is a pot-shaped recess (52) having an inside depth (60) of over 3.5 mm up to 4.5 mm.
- Application tool (12) according to Claim 1,
characterized in that the second fastening means has a region (70) formed by a second elongated hole and having a width of 2.5 mm to 4.5 mm. - Application tool (12) according to either of Claims 1 and 5, characterized in that the second fastening means extends in the tangential direction (30) over an angular range (74) of over 55° up to 65°.
- Application tool (12) according to one of Claims 1, 5 or 6, characterized in that the second fastening means is arranged in a bowl-like region having a bowl inner wall (88), and the second fastening means is at a distance of less than 3 mm from the bowl inner wall (88).
- Application tool (12) according to one of the preceding claims, characterized by at least three third fastening means (20) for fastening an abrasive body (18) to the hub (16), said third fastening means (20) being arranged on a second pitch circle which runs completely outside the third fastening means (20) in the region of the hub material.
- System consisting of an application tool (12) having a hub (16) and a driving device (22) for an angle grinder (2), the hub (16) having at least a first fastening means and the driving device (22) having at least a first fastening element for interacting with the first fastening means and for fastening the hub (16) to the driving device (22), the hub (16) having a second fastening means, characterized in that the first fastening means is arranged on a pitch circle (54) having a radius (56) of between 12 mm and 25 mm, the second fastening means has a retaining region (62), formed by a first elongated hole and having a width of 3.5 mm to 4.5 mm, and a releasing region (66) having a width of 6.5 mm to 7.5 mm, and the second fastening means is formed from two elongated holes which partly adjoin one another in each case along their long sides.
- System according to Claim 9, characterized in that the first fastening means has a pot-shaped recess (52) having an inside diameter (58) of 5.7 mm to 6.5 mm, and the first fastening element has a stud shape having an outside diameter (94) which is smaller than the inside diameter (58) by more than 0.3 mm.
- System according to Claim 9 or 10, characterized in that the hub (16) comprises a centring aperture (26) which can be put onto a centring collar (24) of the driving device (22), the clearance between centring aperture (26) and centring collar (24) being smaller than the clearance between fastening means and fastening element by at least the factor of 5, in particular by at least the factor of 10.
- System according to Claim 11, characterized in that the centring aperture (26) has an inner radius (96) which is smaller than an outer radius (98) of the centring collar (24) by at most 0.1 mm.
- System according to one of Claims 9 to 12,
characterized in that the first fastening element is made of a hardened steel and the hub (16) in the region of the first fastening means is made of an unhardened metal. - System according to one of Claims 9 to 13,
characterized in that the hub (16) can be put onto the driving device (22) and comprises at least one second fastening means, through which a second fastening element (40) of the driving device (22) can be passed, the second fastening means having a blocking element (76) which prevents the second fastening element (40) from being passed through if the hub (16) is put on in a laterally reversed manner.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10360248A DE10360248A1 (en) | 2003-12-20 | 2003-12-20 | Insert tool for an angle grinder |
PCT/EP2004/052876 WO2005061180A1 (en) | 2003-12-20 | 2004-11-09 | Insertion tool for an angle grinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1697086A1 EP1697086A1 (en) | 2006-09-06 |
EP1697086B1 true EP1697086B1 (en) | 2008-07-02 |
Family
ID=34706393
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04820605A Expired - Fee Related EP1697086B1 (en) | 2003-12-20 | 2004-11-09 | Insertion tool for an angle grinder |
Country Status (5)
Country | Link |
---|---|
US (1) | US7722445B2 (en) |
EP (1) | EP1697086B1 (en) |
CN (1) | CN100540222C (en) |
DE (2) | DE10360248A1 (en) |
WO (1) | WO2005061180A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10360252A1 (en) * | 2003-12-20 | 2005-07-21 | Robert Bosch Gmbh | tool adapter |
US8430725B2 (en) * | 2008-12-19 | 2013-04-30 | Jovan Pajovic | Abrasive disc construction |
US8192255B2 (en) * | 2010-02-11 | 2012-06-05 | Eric Gallup | Tool holder with tapered slot for a grinding machine |
CN102814792B (en) * | 2011-06-09 | 2014-12-17 | 苏州宝时得电动工具有限公司 | Power tool, work head and adapter applied to same |
CN111386175A (en) | 2018-03-04 | 2020-07-07 | 奥斯本股份有限公司 | Rotary resurfacing appliance with tool mounting adapter |
CN111546159B (en) * | 2020-06-08 | 2021-06-25 | 上海高仙自动化科技发展有限公司 | Polishing head assembly and stone polishing robot |
CN111660193B (en) * | 2020-06-08 | 2021-08-10 | 苏州高之仙自动化科技有限公司 | Polishing head assembly and stone polishing robot |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295262A (en) * | 1964-06-17 | 1967-01-03 | Gen Pneumatic Products Corp | Pneumatic motor mechanism for hand tools |
US5346453A (en) * | 1993-08-12 | 1994-09-13 | Rivera Bottzeck Otto | Multiple bit power drill |
US5406752A (en) * | 1993-09-13 | 1995-04-18 | American Pneumatic Technologies | Reversible sander |
US6093090A (en) * | 1998-01-28 | 2000-07-25 | The Stanley Works | Reversible clamping hub |
DE29900612U1 (en) * | 1999-01-15 | 1999-03-18 | Chung, Lee-Hsin-Chih, Chung-Li, Taoyuan | Delay device for a grinding machine |
US6309288B1 (en) * | 2000-02-22 | 2001-10-30 | Chung Lee Hsin-Chih | Retarding mechanism for a grinding machine |
DE10017458A1 (en) * | 2000-04-07 | 2001-10-18 | Bosch Gmbh Robert | Tool holder for a grinding machine has insert tool actively connected to drive shaft through follower device with positive engagement through spring-tensioned detent element |
DE10017981A1 (en) * | 2000-04-11 | 2001-10-25 | Bosch Gmbh Robert | Tool holder |
DE10131326A1 (en) * | 2001-06-28 | 2003-01-16 | Bosch Gmbh Robert | Tool for grinding machines |
DE10136459A1 (en) * | 2001-07-26 | 2003-02-13 | Bosch Gmbh Robert | System with implement holder, especially grinding disc has detent movably mounted against spring force, with hub ad axial protuberance |
DE10218196B4 (en) * | 2002-04-24 | 2017-06-29 | Robert Bosch Gmbh | Insert tool and quick-release system with a rotating drivable, hub-shaped hub |
DE10222292A1 (en) * | 2002-05-18 | 2003-12-04 | Bosch Gmbh Robert | System with a tool holder |
DE10225583A1 (en) * | 2002-06-10 | 2004-01-08 | Robert Bosch Gmbh | Tool holder and insert tool |
TWM255104U (en) * | 2003-02-05 | 2005-01-11 | Applied Materials Inc | Retaining ring with flange for chemical mechanical polishing |
US6813837B1 (en) * | 2003-06-02 | 2004-11-09 | Lung-Hui Chen | Bi-directional rotation pneumatic cutting machine |
US6984169B2 (en) * | 2003-06-04 | 2006-01-10 | Lung-Hui Chen | Bi-directional rotation pneumatic grinding tool |
US6905401B1 (en) * | 2004-05-07 | 2005-06-14 | Sunmatch Industrial Co., Ltd. | Bi-directional rotation pneumatic grinding tool |
US7029385B1 (en) * | 2005-07-27 | 2006-04-18 | Fu-Chun Wang | Two-way rotary multi-function polisher |
-
2003
- 2003-12-20 DE DE10360248A patent/DE10360248A1/en not_active Ceased
-
2004
- 2004-11-09 EP EP04820605A patent/EP1697086B1/en not_active Expired - Fee Related
- 2004-11-09 DE DE502004007518T patent/DE502004007518D1/en active Active
- 2004-11-09 US US10/564,667 patent/US7722445B2/en not_active Expired - Fee Related
- 2004-11-09 WO PCT/EP2004/052876 patent/WO2005061180A1/en active IP Right Grant
- 2004-11-09 CN CNB2004800380734A patent/CN100540222C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20070060029A1 (en) | 2007-03-15 |
CN100540222C (en) | 2009-09-16 |
WO2005061180A1 (en) | 2005-07-07 |
EP1697086A1 (en) | 2006-09-06 |
DE502004007518D1 (en) | 2008-08-14 |
US7722445B2 (en) | 2010-05-25 |
CN1898063A (en) | 2007-01-17 |
DE10360248A1 (en) | 2005-07-28 |
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