EP0500489B1 - Tool and toolholder for hand held machine - Google Patents
Tool and toolholder for hand held machine Download PDFInfo
- Publication number
- EP0500489B1 EP0500489B1 EP92810040A EP92810040A EP0500489B1 EP 0500489 B1 EP0500489 B1 EP 0500489B1 EP 92810040 A EP92810040 A EP 92810040A EP 92810040 A EP92810040 A EP 92810040A EP 0500489 B1 EP0500489 B1 EP 0500489B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tool
- rotary drive
- radian measure
- rotary
- tool according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 230000001747 exhibiting effect Effects 0.000 claims 2
- 230000003313 weakening effect Effects 0.000 abstract description 6
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
- B25D17/084—Rotating chucks or sockets
- B25D17/088—Rotating chucks or sockets with radial movable locking elements co-operating with bit shafts specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/003—Details relating to chucks with radially movable locking elements
- B25D2217/0034—Details of shank profiles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17042—Lost motion
- Y10T279/17068—Rotary socket
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/17—Socket type
- Y10T279/17042—Lost motion
- Y10T279/17085—Key retainer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/89—Tool or Tool with support
- Y10T408/907—Tool or Tool with support including detailed shank
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/94—Tool-support
- Y10T408/95—Tool-support with tool-retaining means
- Y10T408/953—Clamping jaws
Definitions
- the invention relates to a tool for handheld power tools, the tool shaft having two diametrically opposite rotary driving grooves which open out towards the end, and wherein the tool shaft has two diametrically opposed, mutually closed recesses and a tool holder for such a tool.
- the novelty according to the invention is that the rotary driving groove with the larger radian measure has a symmetrically arranged depression which extends along the rotating driving groove.
- the invention has for its object to provide a tool and a tool holder, between these two parts sufficiently high torques can be transmitted and on the other hand, no weakening of the tool shank is caused.
- the object is achieved in that the diametrically opposed rotary driving grooves of the tool have a different arc dimension.
- the tools with a dimensioning of rotary driving grooves according to the present invention are also suitable for being used in tool holders of devices of a conventional type.
- a tool according to the invention When a tool according to the invention is inserted into such previously known and very widely used tool holders on the market, only the rotary driver which engages in the rotary driving groove with the smaller arc dimension transmits the torque. This is completely sufficient, since this is a conventional, significantly lower torque on the tool-generating device generation.
- rotary driver grooves have an advantageous effect, in which the larger curve dimension corresponds to 1.5 to 2.5 times the smaller curve dimension.
- the smaller radian measure essentially corresponds to the size of the tools known hitherto, that is to say it is approximately 0.2 to 0.3 times the diameter of the tool shank.
- the minimization of the cross-sectional weakening has a further advantageous effect if the base of the rotary driving groove with the larger arc dimension is arcuate, this arc lying on a radius to the axis of rotation of the tool.
- This adjustment of the groove depth enables the tool according to the invention to be used in conventional tool holders.
- a recess is advantageously provided which corresponds to the depth of the rotary driving groove with a smaller curved dimension and is adapted in length to the two rotary driving grooves. Thanks to this measure, the use of the tool according to the invention in tool holders of conventional devices is also made possible.
- the width at the base of the depression corresponding to the width at the base of the rotary drive is preferably designed with a smaller radian measure.
- the bottom of the depression expediently runs tangentially.
- the rotary drivers preferably have a different arc dimension on a tool holder with strip-shaped rotary drivers and at least one radially displaceable locking body. This also ensures that tools for conventional tool holders cannot be inserted into the tool holder according to the present invention. It is therefore impossible for such tools known up to now and not designed for the transmission of excessively high torques to be damaged by excessive stress.
- a simplified tool holder can be seen in cross section from FIG. 1, with a guide 1, an actuating sleeve 2, a cage 3 and locking bodies 4 in the form of rollers.
- the guide In order to transmit the torque from the tool holder to the tool, the guide has 1 rotary driver 6, 7. These rotary drivers 6, 7 with different radians engage in rotary driver grooves 9, 10 on the tool shank 8.
- the actuating sleeve 2 is displaced, ie either rotated or axially displaced, which leads to the fact that, for reasons of simplification, alternative niches come to lie flush with the locking bodies 4, so that the locking bodies 4 so far can be disengaged from the recesses 11, 12 that the tool shank 8 of the tool is released.
- FIG. 2 and 3 show the tool corresponding to FIG. 1, the tool shank 8 of which has rotary driving grooves 9, 10 and recesses 11, 12 which are closed on both sides.
- the rotary driving groove 9 has a larger radian measure than the rotating driving groove 10.
- FIG. 2 shows how the recesses 11, 12 each have a chamfer 11a, 12a in order to facilitate the entry of the locking bodies 4 into the recesses 11, 12.
- FIGS. 4 and 5 Another tool is shown in FIGS. 4 and 5.
- the tool shaft 13 of this further tool again has rotary driving grooves 14, 15 and recesses 16, 17 which are closed on both sides.
- the rotary driving groove 14 with the larger radian also has a recess 18 symmetrically, the width of which corresponds to the bottom of the width of the rotary driving groove 15 with a smaller radian on the bottom.
- the recesses 16, 17 have a chamfer 16a, 17a for the same purpose.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
- Jigs For Machine Tools (AREA)
- Drilling Tools (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
- Knives (AREA)
- Sawing (AREA)
- Milling Processes (AREA)
- Gear Transmission (AREA)
- Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
- Percussive Tools And Related Accessories (AREA)
- Manipulator (AREA)
Abstract
Description
Die Erfindung betrifft ein Werkzeug für Handwerkzeuggeräte, wobei der Werkzeugschaft zwei einander diametral gegenüberliegende, zum Ende hin offen ausmündende Drehmitnahmenuten aufweist und wobei der Werkzeugschaft zwei einander diametral gegenüberliegende beidseitig geschlossene Ausnehmungen aufweist und einen Werkzeughalter für ein solches Werkzeug.The invention relates to a tool for handheld power tools, the tool shaft having two diametrically opposite rotary driving grooves which open out towards the end, and wherein the tool shaft has two diametrically opposed, mutually closed recesses and a tool holder for such a tool.
Aus der DE-PS 25 51 125 ist ein Werkzeug sowie ein Werkzeughalter der vorgenannten Art bekannt. Während bei diesem bekannten Werkzeughalter die in die Drehmitnahmenut eingreifenden Drehmitnehmer für die Uebertragung des Drehmomentes verantwortlich sind, dienen der axialen Halterung in die beidseitig geschlossenen Ausnehmungen am Werkzeugschaft eingreifenden Verriegelungskörper, welche innerhalb des Werkzeughalters radial verschiebbar sind. Die radiale Verschiebbarkeit wird von einer Betätigungshülse bewerkstelligt, mittels welcher durch Verdrehen oder Verschieben Ausweichnischen in eine mit den Verriegelungskörpern fluchtende Lage gebracht werden können, so dass die Verriegelungskörper aus den Ausnehmungen ausrücken und damit das Werkzeug axial freigeben.From DE-PS 25 51 125 a tool and a tool holder of the aforementioned type is known. While in this known tool holder the rotating drivers engaging in the rotary driving groove are responsible for the transmission of the torque, the axial mounting in the mutually closed recesses on the tool shank locking bodies which are radially displaceable within the tool holder. The radial displaceability is brought about by an actuating sleeve, by means of which, by twisting or moving, escape niches into one with the locking bodies aligned position can be brought so that the locking body disengage from the recesses and thus axially release the tool.
Während an die axiale Verriegelung in belastungsmässiger Hinsicht keine grossen Anforderungen gestellt werden, wirken auf die Drehmitnehmer des Werkzeughalters aufgrund des zu übertragenden Drehmomentes ganz erhebliche Kräfte ein. Auf der einen Seite sind zu schwach dimensionierte Drehmitnehmer nicht in der Lage Drehmomente von erheblicher Grösse zu übertragen, auf der anderen Seite führen aber stärker dimensionierte Drehmitnehmer aufgrund der hierzu erforderlichen grösseren Drehmitnahmenuten zu einer derartigen Schwächung des Werkzeugschaftes, dass hier Brüche auftreten können. Mit den bisher bekannten symmetrischen Ausführungen, wo jeweils einander diametral gegenüberliegend je eine gleich dimensionierte Drehmitnahmenut mit einem entsprechend dimensionierten Drehmitnehmer angeordnet sind, konnte ein optimaler Kompromiss nicht gefunden werden.While no great demands are placed on the axial locking in terms of load, the rotary drivers of the tool holder have very considerable forces due to the torque to be transmitted. On the one hand, too weakly dimensioned rotary drivers are not able to transmit torques of considerable size, on the other hand, however, more strongly dimensioned rotary drivers lead to a weakening of the tool shank due to the larger rotary driving grooves required for this purpose, so that breaks can occur here. An optimal compromise could not be found with the previously known symmetrical designs, where an equally dimensioned rotary driving groove with a correspondingly dimensioned rotating driver is arranged diametrically opposite one another.
In der nach dem Prioritätstag der vorliegenden Anmeldung veröffentlichten, und deshalb den Stand der Technik gemäß Artikel 54(3) EPÜ bildenden EP-A-0433876 ist ein Werkzeug und ein Werkzeughalter beschrieben, wobei der Werkzeugschaft zwei einander diametral gegenüberliegende, zum Ende hin offen ausmündende Drehmitnahmenuten mit unterschiedlichem Bogenmaß aufweist und wobei der Werkzeugschaft zwei einander diametral gegenüberliegende beidseitig geschlossene Ausnehmungen aufweist.A tool and a tool holder are described in EP-A-0433876, which was published after the priority date of the present application and therefore forms the prior art under Article 54 (3) EPC, the tool shaft having two diametrically opposite ends that open out towards the end Has rotary driving grooves with different radians and the tool shank has two diametrically opposed, mutually closed recesses.
Mit Rücksicht auf diese Fundstelle besteht die erfindungsgemäße Neuheit darin, daß die Drehmitnahmenut mit dem grösseren Bogenmaß eine symetrisch angeordnete, sich entlang der Drehmitnahmenut erstreckende Vertiefung aufweist.With regard to this finding, the novelty according to the invention is that the rotary driving groove with the larger radian measure has a symmetrically arranged depression which extends along the rotating driving groove.
Der Erfindung liegt die Aufgabe zugrunde, ein Werkzeug sowie einen Werkzeughalter zu schaffen, wobei zwischen diesen beiden Teilen ausreichend hohe Drehmomente übertragen werden können und andererseits keine Schwächung des Werkzeugschaftes hervorgerufen wird.The invention has for its object to provide a tool and a tool holder, between these two parts sufficiently high torques can be transmitted and on the other hand, no weakening of the tool shank is caused.
Erfindungsgemäss wird die Aufgabe dadurch gelöst, dass die einander diametral gegenüberliegenden Drehmitnahmenuten des Werkzeuges ein unterschiedliches Bogenmass aufweisen.According to the invention, the object is achieved in that the diametrically opposed rotary driving grooves of the tool have a different arc dimension.
Die erfindungsgemässe Dimensionierung der Drehmitnahmenuten schafft eine Lösung von im wesentlichen zwei verschiedenartig gestalteten Problemen.The dimensioning of the rotary driving grooves according to the invention creates a solution to essentially two differently designed problems.
Zum einen ist es möglich einen Drehmitnehmer wesentlich stärker zu dimensionieren. Dies hat zur Folge, dass nur eine der Drehmitnahmenuten in ihrem Bogenmass grösser dimensioniert werden muss, so dass eine sich nachteilig auswirkende Querschnittsschwächung des Werkzeugschaftes ausbleibt. Es wird dadurch die Möglichkeit zur Konzipierung einer neuen Gerätegeneration geschaffen, welche in der Lage ist, grössere Drehmomente auf die Werkzeuge abzugeben.On the one hand, it is possible to dimension a rotary driver much stronger. The consequence of this is that only one of the rotary driving grooves has to be dimensioned larger in terms of its arc dimension, so that there is no disadvantageously weakening cross-section of the tool shank. It will This creates the possibility of designing a new generation of devices that are able to deliver greater torques to the tools.
Zum anderen sind die Werkzeuge mit einer Dimensionierung von Drehmitnahmenuten entsprechend vorliegender Erfindung auch dazu geeignet, in Werkzeughalter von Geräten herkömmlicher Art eingesetzt zu werden. Beim Einsetzen eines erfindungsgemässen Werkzeuges in solche bisher bekannte und am Markt sehr stark verbreitete Werkzeughalter überträgt dann nur jener Drehmitnehmer, welcher in die Drehmitnahmenut mit dem kleineren Bogenmass eingreift, das Drehmoment. Dies reicht vollkommen aus, da es sich hier um eine herkömmliche, wesentlich geringere Drehmomente auf die Werkzeuge abgebende Gerätegeneration handelt.On the other hand, the tools with a dimensioning of rotary driving grooves according to the present invention are also suitable for being used in tool holders of devices of a conventional type. When a tool according to the invention is inserted into such previously known and very widely used tool holders on the market, only the rotary driver which engages in the rotary driving groove with the smaller arc dimension transmits the torque. This is completely sufficient, since this is a conventional, significantly lower torque on the tool-generating device generation.
Aus der Sicht der Dimensionierung, insbesondere bezüglich Uebertragungsfähigkeit der Drehmitnehmer sowie Vermeidung allzu grosser Querschnittsschwächungen wirken sich Drehmitnahmenuten vorteilhaft aus, bei welchen das grössere Bogenmass dem 1,5- bis 2,5-fachen des kleineren Bogenmasses entspricht. Dabei entspricht das kleinere Bogenmass im wesentlichen dem Mass der bisher bekannten Werkzeuge, das heisst es beträgt etwa das 0,2- bis 0,3-fache des Durchmessers des Werkzeugschaftes.From the point of view of dimensioning, in particular with regard to the transfer capability of the rotary drivers and avoidance of excessive cross-sectional weakening, rotary driver grooves have an advantageous effect, in which the larger curve dimension corresponds to 1.5 to 2.5 times the smaller curve dimension. The smaller radian measure essentially corresponds to the size of the tools known hitherto, that is to say it is approximately 0.2 to 0.3 times the diameter of the tool shank.
Auf die Minimierung der Querschnittsschwächung wirkt es sich weiter vorteilhaft aus, wenn der Grund der Drehmitnahmenut mit dem grösseren Bogenmass bogenförmig ausgebildet ist, wobei dieser Bogen auf einem Radius zur Drehachse des Werkzeuges liegt. Es entsteht damit eine entlang eines Teiles des Umfanges vom Werkzeugschaft gleichbleibend tiefe Drehmitnahmenut, wobei diese Tiefe vorzugsweise der Tiefe der Nut mit dem kleineren Bogenmass entspricht. Diese Angleichung der Nutentiefe ermöglicht die Verwendung des erfindungsgemässen Werkzeuges in herkömmlichen Werkzeughaltern.The minimization of the cross-sectional weakening has a further advantageous effect if the base of the rotary driving groove with the larger arc dimension is arcuate, this arc lying on a radius to the axis of rotation of the tool. This creates a deep rotary driving groove along a part of the circumference of the tool shank, this depth preferably corresponding to the depth of the groove with the smaller radian measure. This adjustment of the groove depth enables the tool according to the invention to be used in conventional tool holders.
Sofern die Tiefe der Drehmitnahmenut mit grösserem Bogenmass aus Dimensionierungsgrvnden geringer als die Tiefe der Drehmitnahmenut mit kleinerem Bogenmass gewählt werden soll, ist vorteilhaft eine Vertiefung vorgesehen, die der Tiefe der Drehmitnahmenut mit kleinerem Bogenmass entspricht und in der Länge beiden Drehmitnahmenuten angepasst ist. Dank dieser Massnahme wird ebenfalls die Verwendung des erfindungsgemässen Werkzeuges in Werkzeughaltern herkömmlicher Geräte ermöglich.If the depth of the rotary driving groove with a larger radian measure is smaller than the depth of the rotating driving groove for dimensioning reasons to be chosen with a smaller arc dimension, a recess is advantageously provided which corresponds to the depth of the rotary driving groove with a smaller curved dimension and is adapted in length to the two rotary driving grooves. Thanks to this measure, the use of the tool according to the invention in tool holders of conventional devices is also made possible.
Zur weiteren Angleichung an die Werkzeughalter der Geräte herkömmlicher Art ist vorzugsweise die Breite am Grund der Vertiefung entsprechend der Breite am Grund der Drehmitnahme mit kleinerem Bogenmass ausgebildet. Darüber hinaus verläuft der Grund der Vertiefung zweckmässigerweise tangential.For further adjustment to the tool holder of the devices of the conventional type, the width at the base of the depression corresponding to the width at the base of the rotary drive is preferably designed with a smaller radian measure. In addition, the bottom of the depression expediently runs tangentially.
Um die Vorteile hinsichtlich Uebertragung grösserer Drehmomente aufgrund einer Drehmitnahmenut mit grösserem Bogenmass vollkommen auszuschöpfen, weisen vorzugsweise an einem Werkzeughalter mit leistenförmigen Drehmitnehmern und wenigstens einem radial verschiebbaren Verriegelungskörper die Drehmitnehmer ein unterschiedliches Bogenmass auf. Dadurch ist auch sichergestellt, dass Werkzeuge für Werkzeughalter herkömmlicher Art nicht in den Werkzeughalter entsprechend vorliegender Erfindung eingesetzt werden können. Es ist damit ausgeschlossen, dass solchen bis anhin bekannten und nicht für die Uebertragung allzu hoher Drehmomente ausgelegten Werkzeugen Schäden durch Ueberbeanspruchung zugefügt werden.In order to fully exploit the advantages with regard to the transmission of larger torques due to a rotary driving groove with a larger arc dimension, the rotary drivers preferably have a different arc dimension on a tool holder with strip-shaped rotary drivers and at least one radially displaceable locking body. This also ensures that tools for conventional tool holders cannot be inserted into the tool holder according to the present invention. It is therefore impossible for such tools known up to now and not designed for the transmission of excessively high torques to be damaged by excessive stress.
Die Erfindung wird nachstehend, anhand der sie beispielsweise wiedergebenden Zeichnungen, näher erläutert. Es zeigen:
- Fig. 1
- einen Querschnitt durch einen Werkzeughalter mit eingesetztem Werkzeug entsprechend vorliegender Erfindung;
- Fig. 2
- den Werkzeugschaft des Werkzeuges entsprechend Fig. 1 in Ansicht;
- Fig. 3
- einen Schnitt durch den Werkzeugschaft der Fig. 2 entsprechend Linie III-III;
- Fig. 4
- den Werkzeugschaft eines weiteren Werkzeuges in Ansicht;
- Fig. 5
- einen Schnitt durch den Werkzeugschaft der Fig. 4 entsprechend Linie V-V.
- Fig. 1
- a cross section through a tool holder with inserted tool according to the present invention;
- Fig. 2
- the tool shank of the tool according to Figure 1 in view.
- Fig. 3
- a section through the tool shank of Figure 2 along line III-III.
- Fig. 4
- the tool shank of another tool in view;
- Fig. 5
- a section through the tool shank of FIG. 4 according to line VV.
Aus Fig. 1 ist im Querschnitt ein vereinfacht dargestellter Werkzeughalter entnehmbar, mit einer Führung 1, einer Betätigungshülse 2, einem Käfig 3 sowie Verriegelungskörpern 4 in Form von Walzen. Im Werkzeughalter eingesetzt ist ein Werkzeug mit einem ebenfalls im Schnitt dargestellten Werkzeugschaft 8.A simplified tool holder can be seen in cross section from FIG. 1, with a guide 1, an
Zur Uebertragung des Drehmomentes vom Werkzeughalter auf das Werkzeug weist die Führung 1 Drehmitnehmer 6, 7 auf. Diese Drehmitnehmer 6, 7 mit unterschiedlichem Bogenmass greifen in Drehmitnahmenuten 9, 10 am Werkzeugschaft 8 ein. Der axialen Halterung des Werkzeuges dienen die radial verschiebbaren Verriegelungskörper 4, welche in beidseitig geschlossene Ausnehmungen 11, 12 des Werkzeugschaftes 8 eingreifen.In order to transmit the torque from the tool holder to the tool, the guide has 1 rotary driver 6, 7. These rotary drivers 6, 7 with different radians engage in
Um eine radiale Verschiebung der Verriegelungskörper 4 zu ermöglichen, wird die Betätigungshülse 2 versetzt, dh entweder verdreht oder axial verschoben, was dazu führt - dass aus Vereinfachungsgründen nicht dargestellte - Ausweichnischen fluchtend mit den Verriegelungskörpern 4 zu liegen kommen, so dass die Verriegelungskörper 4 so weit aus den Ausnehmungen 11, 12 ausrückbar sind, dass der Werkzeugschaft 8 des Werkzeuges freigegeben wird.In order to enable a radial displacement of the locking bodies 4, the actuating
Die Fig. 2 und 3 zeigen das Werkzeug entsprechend Fig. 1, dessen Werkzeugschaft 8 Drehmitnahmenuten 9, 10 und beidseitig geschlossene Ausnehmungen 11, 12 aufweist. Wie insbesondere Fig. 3 verdeutlicht, weist die Drehmitnahmenut 9 gegenüber der Drehmitnahmenut 10 ein grösseres Bogenmass auf. Darüber hinaus ist in Fig. 2 verdeutlicht, wie die Ausnehmungen 11, 12 je eine Anfasung 11a, 12a aufweisen, um den Eintritt der Verriegelungskörper 4 in die Ausnehmungen 11, 12 zu erleichtern.2 and 3 show the tool corresponding to FIG. 1, the
Ein weiteres Werkzeug zeigen die Fig. 4 und 5. Der Werkzeugschaft 13 dieses weiteren Werkzeuges weist wiederum Drehmitnahmenuten 14, 15 sowie beidseitig geschlossene Ausnehmungen 16, 17 auf. Die Drehmitnahmenut 14 mit dem grösseren Bogenmass weist zudem symmetrisch eine Vertiefung 18 auf, deren Breite am Grund der Breite der Drehmitnahmenut 15 mit kleinerem Bogenmass an deren Grund entspricht. Wie bereits voran geschildert, weisen die Ausnehmungen 16, 17 zum selben Zwecke eine Anfasung 16a, 17a auf.Another tool is shown in FIGS. 4 and 5. The
Claims (7)
- Tool for hand-held machines, the tool shank (8, 13) exhibiting two diametrically opposite rotary drive-along grooves (9, 10, 14, 15) which are open towards the end, and the tool shank (8, 13) exhibiting two diametrically opposite clearances (11, 12, 16, 17) which are closed on both sides, characterized in that the diametrically opposite rotary drive-along grooves (9, 10, 14, 15) are of a different radian measure.
- Tool according to Claim 1, characterized in that the larger radian measure corresponds to 1.5 times to 2.5 times the smaller radian measure.
- Tool according to Claim 1 or 2, characterized in that the base of the rotary drive-along groove (9, 14) with the larger radian measure runs in the form of an arc with a radius formed by the axis of rotation.
- Tool according to one of Claims 1 to 3, characterized in that the rotary drive-along groove (14) with the larger radian measure exhibits a symmetrically arranged depression (18) extending along the rotary drive-along groove (14).
- Tool according to Claim 4, characterized in that the width at the base of the depression (18) corresponds to the width at the base of the rotary drive-along groove (15) with the smaller radian measure.
- Tool according to Claim 4 or 5, characterized in that the base of the depression (18) runs tangentially.
- Tool holder for a tool according to one of Claims 1 to 6, having moulding-like rotary drivers (6, 7) and at least one radially displaceable locking body (4), the moulding-like rotary drivers (6, 7), which engage into the rotary drive-along grooves (9, 10, 14, 15), being of a different radian measure corresponding to the rotary drive-along grooves (9, 10, 14, 15).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4105414A DE4105414A1 (en) | 1991-02-21 | 1991-02-21 | TOOL AND TOOL HOLDER FOR HAND TOOLS |
| DE4105414 | 1991-02-21 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0500489A2 EP0500489A2 (en) | 1992-08-26 |
| EP0500489A3 EP0500489A3 (en) | 1993-04-14 |
| EP0500489B1 true EP0500489B1 (en) | 1995-08-23 |
Family
ID=6425565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP92810040A Expired - Lifetime EP0500489B1 (en) | 1991-02-21 | 1992-01-22 | Tool and toolholder for hand held machine |
Country Status (21)
| Country | Link |
|---|---|
| US (1) | US5174698A (en) |
| EP (1) | EP0500489B1 (en) |
| JP (1) | JP3442796B2 (en) |
| KR (1) | KR0174731B1 (en) |
| CN (1) | CN1027876C (en) |
| AT (1) | ATE126748T1 (en) |
| AU (1) | AU644266B2 (en) |
| CA (1) | CA2061591C (en) |
| CZ (1) | CZ279493B6 (en) |
| DE (2) | DE4105414A1 (en) |
| DK (1) | DK0500489T3 (en) |
| ES (1) | ES2075669T3 (en) |
| FI (1) | FI98607C (en) |
| GR (1) | GR3017341T3 (en) |
| HU (1) | HU209800B (en) |
| MX (1) | MX9200708A (en) |
| NO (1) | NO176701C (en) |
| PL (1) | PL167458B1 (en) |
| SK (1) | SK279415B6 (en) |
| YU (1) | YU13092A (en) |
| ZA (1) | ZA921136B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0563727A1 (en) * | 1992-03-30 | 1993-10-06 | Plica Werkzeugfabrik Ag | Device for torque transmission |
| EP0955131A1 (en) | 1998-05-04 | 1999-11-10 | HILTI Aktiengesellschaft | Tool for hand held machine-tools |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE35174E (en) * | 1987-05-20 | 1996-03-12 | Robert Bosch Gmbh | Tool shaft for a tool of the percussive and rotative type |
| DE4137120A1 (en) * | 1991-11-12 | 1993-05-13 | Hilti Ag | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
| DE4141846A1 (en) * | 1991-12-18 | 1993-06-24 | Hilti Ag | IMPACT DRILLING TOOLS AND CHISELING TOOLS FOR THESE TOOLS |
| DE4242452A1 (en) * | 1992-07-15 | 1994-01-20 | Hilti Ag | Tool and tool holder for hand tools |
| DE4223517A1 (en) * | 1992-07-17 | 1994-01-20 | Hilti Ag | Tool and tool holder for hand tools |
| DE4313578A1 (en) * | 1993-03-06 | 1994-09-08 | Hilti Ag | Tool and tool holder for hand tools |
| DE4313580A1 (en) * | 1993-04-26 | 1994-10-27 | Hilti Ag | Tool clamping |
| CZ287520B6 (en) * | 1994-01-14 | 2000-12-13 | Bosch Gmbh Robert | Mechanism of hand-held cutting device for rotary driving of impact and/or drilling tools, a tool and a tool holder |
| DE4402802C2 (en) * | 1994-01-31 | 2003-01-30 | Hilti Ag | Tool and tool holder for hand tools |
| DE19507567A1 (en) * | 1995-03-03 | 1996-09-05 | Drebo Werkzeugfab Gmbh | drill |
| JPH0911155A (en) * | 1995-06-23 | 1997-01-14 | Hitachi Koki Co Ltd | Tool holding device for impact tools |
| DE19537561A1 (en) * | 1995-10-09 | 1997-04-10 | Hilti Ag | Tool holder |
| AUPP053097A0 (en) * | 1997-11-26 | 1997-12-18 | Ramset Fasteners (Aust.) Pty. Limited | Drill bits and holders therefor |
| DE69938838D1 (en) | 1998-11-12 | 2008-07-10 | Black & Decker Inc | FEED, DRILL, ASSEMBLY AND ASSEMBLY METHOD |
| DE10338640A1 (en) * | 2003-08-22 | 2005-03-17 | Hilti Ag | Plug-in ends for a rotating and beating tool |
| JP2006007339A (en) * | 2004-06-23 | 2006-01-12 | Senho Kogyo Kofun Yugenkoshi | Chuck |
| DE102004054685A1 (en) * | 2004-11-12 | 2006-05-18 | Hilti Ag | tool holder |
| DE102007048821A1 (en) * | 2007-10-10 | 2009-04-16 | Robert Bosch Gmbh | Tooling system |
| SE533660C2 (en) * | 2009-03-27 | 2010-11-23 | Seco Tools Ab | Cutting tip comprising a grooved shank and cutting tool including such cutting tip |
| US9089955B2 (en) | 2009-06-09 | 2015-07-28 | Baseline Redefined, Llc | Locking mechanism and tool device |
| US8430003B1 (en) | 2009-06-09 | 2013-04-30 | Robyn Marie Johnson | High density tool and locking system |
| CH701136B1 (en) * | 2009-06-26 | 2013-09-30 | Rego Fix Ag | Clamping system. |
| CN105312635A (en) * | 2014-08-01 | 2016-02-10 | 王吉会 | Straight-shank antiskid drilling bit and universal antiskid drilling bit and skid prevention method thereof |
| SE540445C2 (en) * | 2016-04-29 | 2018-09-18 | Kapman Ab | Holder for a rotary tool, such as a hole saw |
| EP4007673A4 (en) * | 2019-08-01 | 2023-11-22 | Milwaukee Electric Tool Corporation | VACUUM DRILLING ARRANGEMENT WITH INTERCHANGEABLE DRILL BITS |
| CN111643175B (en) * | 2020-04-29 | 2021-07-02 | 天衍医疗器材有限公司 | Power joint device adaptive to different power tools |
| US11878406B2 (en) | 2020-07-22 | 2024-01-23 | Royal Machine Solutions Inc. | Holder for a bit of a tool |
| US20220219306A1 (en) * | 2021-01-14 | 2022-07-14 | Milwaukee Electric Tool Corporation | Tool bit |
| CA3146554A1 (en) | 2021-02-11 | 2022-08-11 | 9359-0602 Quebec Inc. | Tool part attachment assembly, tool part connector and tool assembly |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE7536182U (en) * | 1975-11-14 | 1978-02-02 | Robert Bosch Gmbh, 7000 Stuttgart | DEVICE FOR TORQUE TRANSMISSION |
| DE2618596C2 (en) * | 1976-04-28 | 1984-05-17 | Robert Bosch Gmbh, 7000 Stuttgart | Tool holder |
| DE2650134A1 (en) * | 1976-10-30 | 1978-05-11 | Bosch Gmbh Robert | TOOL SHAFT |
| DE2811328C2 (en) * | 1978-03-16 | 1986-09-25 | Robert Bosch Gmbh, 7000 Stuttgart | Drill chuck |
| DK333581A (en) * | 1981-07-24 | 1983-01-25 | Duforac Kartro A S | TOOL SHAFT IS FOR BATTLE OR HAMMER DRILL |
| DE3413432A1 (en) * | 1983-12-27 | 1985-07-04 | Gebrüder Heller GmbH Werkzeugfabrik, 2807 Achim | DRILLS FOR HAND DRILLING MACHINES |
| GB8425400D0 (en) * | 1984-10-08 | 1984-11-14 | Dom Holdings Plc | Tool |
| DE3539912A1 (en) * | 1985-11-11 | 1987-05-14 | Hilti Ag | TOOL HOLDER FOR DRILLING AND CHISEL TOOLS |
| DE3745046C2 (en) * | 1987-05-20 | 1996-07-25 | Bosch Gmbh Robert | Torque coupling e.g. for hand held electric impact drill |
| DE3717614A1 (en) * | 1987-05-25 | 1988-12-15 | Hilti Ag | TOOL HOLDER FOR TOOLS |
| DE3824894A1 (en) * | 1988-07-22 | 1990-01-25 | Bosch Gmbh Robert | DEVICE ON HAND MACHINE TOOLS FOR TORQUE TRANSMISSION |
| FR2635039B1 (en) * | 1988-08-05 | 1990-11-02 | Prospection & Inventions | FOREST INCLUDING A TAIL WITH GROOVES |
| DE3941646A1 (en) * | 1989-12-16 | 1991-06-20 | Heller Werkzeug Gmbh Geb | IMPACT DRILLING TOOL AND TOOL ADAPTER FOR IMPACT DRILLING TOOLS |
| DE9013190U1 (en) * | 1990-09-17 | 1992-01-23 | Drebo Werkzeugfabrik GmbH, 7963 Altshausen | drill |
-
1991
- 1991-02-21 DE DE4105414A patent/DE4105414A1/en not_active Withdrawn
-
1992
- 1992-01-22 EP EP92810040A patent/EP0500489B1/en not_active Expired - Lifetime
- 1992-01-22 ES ES92810040T patent/ES2075669T3/en not_active Expired - Lifetime
- 1992-01-22 DK DK92810040.3T patent/DK0500489T3/en active
- 1992-01-22 AT AT92810040T patent/ATE126748T1/en not_active IP Right Cessation
- 1992-01-22 DE DE59203327T patent/DE59203327D1/en not_active Expired - Lifetime
- 1992-02-10 YU YU13092A patent/YU13092A/en unknown
- 1992-02-17 ZA ZA921136A patent/ZA921136B/en unknown
- 1992-02-17 AU AU11027/92A patent/AU644266B2/en not_active Expired
- 1992-02-19 PL PL92293533A patent/PL167458B1/en unknown
- 1992-02-19 JP JP03198592A patent/JP3442796B2/en not_active Expired - Lifetime
- 1992-02-20 US US07/839,201 patent/US5174698A/en not_active Expired - Lifetime
- 1992-02-20 FI FI920729A patent/FI98607C/en not_active IP Right Cessation
- 1992-02-20 MX MX9200708A patent/MX9200708A/en unknown
- 1992-02-20 CN CN92101101A patent/CN1027876C/en not_active Expired - Lifetime
- 1992-02-20 HU HU9200551A patent/HU209800B/en unknown
- 1992-02-20 CZ CS92495A patent/CZ279493B6/en not_active IP Right Cessation
- 1992-02-20 CA CA002061591A patent/CA2061591C/en not_active Expired - Lifetime
- 1992-02-20 NO NO920683A patent/NO176701C/en not_active IP Right Cessation
- 1992-02-20 SK SK495-92A patent/SK279415B6/en not_active IP Right Cessation
- 1992-02-20 KR KR1019920002553A patent/KR0174731B1/en not_active Expired - Lifetime
-
1995
- 1995-09-08 GR GR950401859T patent/GR3017341T3/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0563727A1 (en) * | 1992-03-30 | 1993-10-06 | Plica Werkzeugfabrik Ag | Device for torque transmission |
| EP0955131A1 (en) | 1998-05-04 | 1999-11-10 | HILTI Aktiengesellschaft | Tool for hand held machine-tools |
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