EP2006058A1 - Clamping device for tool-less holding - Google Patents
Clamping device for tool-less holding Download PDFInfo
- Publication number
- EP2006058A1 EP2006058A1 EP08008708A EP08008708A EP2006058A1 EP 2006058 A1 EP2006058 A1 EP 2006058A1 EP 08008708 A EP08008708 A EP 08008708A EP 08008708 A EP08008708 A EP 08008708A EP 2006058 A1 EP2006058 A1 EP 2006058A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- flange
- handwheel
- clamping device
- threaded
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
- B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
- B27B5/29—Details; Component parts; Accessories
- B27B5/30—Details; Component parts; Accessories for mounting or securing saw blades or saw spindles
- B27B5/32—Devices for securing circular saw blades to the saw spindle
-
- 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
Definitions
- the invention relates to a clamping device for tool-free axial clamping of a disc-shaped tool with the features of the preamble of claim 1.
- Clamping devices of the type in question are for stationary machine tools and hand tool machines in which a disc-shaped tool replaced from time to time due to wear and a new tool must be tightened, known for a long time.
- Machine tools of the type in question are in particular table saws, circular saws, angle grinders etc ..
- Tools of the type in question are in particular saw blades, grinding wheels, rubber plates or the like.
- clamping devices of the type in question are to be able to work without tools.
- a problem consists in the fact that the clamping device must be designed so that they can not solve themselves in the operation of the machine tool by itself. This causes the clamping device to tighten itself in operation of the machine tool on its own. Therefore you have to use to release the tool usually large-sized auxiliary tools.
- One way to work without tools is to make the handwheel in one piece with the threaded connector and screw the threaded connector to the drive shaft block.
- the spring element is designed as a strong helical compression spring and defines the force for axial clamping of the tool to the flange of the drive shaft ( DE-A-30 12 836 ). This construction ensures that the clamping device does not tighten further by itself during operation of the machine tool.
- the contact pressure for axial clamping of the tool which is applied by means of the spring, but is sometimes too low for example table saws and other highly stressed machines.
- the tensioning device from which the invention proceeds ( DE-A-37 00 968 ), one achieves a high, not only applied by a spring force for axial clamping of the tool on the flange of the drive shaft, characterized in that the handwheel is separated from the threaded neck and between the handwheel and the threaded connector is a power transmission connection.
- the power transmission connection is designed as a planetary gear.
- the construction of the clamping device with planetary gear is of course relatively expensive.
- the teaching is therefore based on the problem, a generic clamping device in such a way that it achieves the desired axial unloading function when releasing the clamping device, without a transmission, in particular a planetary gear, must be used.
- the threaded connector of the clamping device is provided with two threads of different pitch.
- the base pitch with large pitch allows quick attachment of the tensioner to the drive shaft.
- the handwheel with the additional thread does not yet come into operation.
- the tensioning device can be handled as a unit such as a conventional clamping nut. In the course of the clamping movement when clamping a tool, the handwheel comes into operation. Its additional thread for the additional thread on the threaded neck has a much lower pitch than the base thread. Accordingly, on the last stretch of the Clamping movement of the pressure flange on the hand wheel a considerable contact pressure can be achieved.
- the return spring located between the handwheel and the threaded connector ensures that the additional mating thread on the handwheel on the additional thread on the threaded connector can not be moved to block. Excessive tightening at this point is prevented.
- the clamping device When releasing the clamping device thus the frictional engagement of the pressure flange on the tool can be overcome by hand, the clamping device can be used without tools.
- Clamping device according to the invention shown in a first embodiment is used for tool-free axial clamping of a disk-shaped tool 1 of a machine tool.
- a machine tool Especially it may be a saw blade of a table saw or the like. act.
- hand-held machine tools such as a circular saw, an angle grinder or other machine tool that uses a disc-shaped tool 1, require such a clamping device.
- Fig. 1 and 2 shows only the clamping device, not the tool 1 and additional components of the machine tool. According to the second embodiment Fig. 4 However, these components are drawn. The same can be done in the first embodiment according to Fig. 1 and 2 appearance.
- the basic structure of the clamping device in conjunction with the associated components of the machine tool based on Fig. 4 explained.
- Fig. 4 Shown in Fig. 4 is a pressure disk 1 'for the tool 1 and a flange 2 on a drive shaft 3 of the machine tool.
- the illustration makes it clear that these parts do not belong to the clamping device itself.
- the clamping device is tuned to the particular circumstances of a particular machine tool. Such a circumstance is the fact that the flange-side end of the drive shaft 3 of the machine tool has a thread 4 with a certain pitch, which serves to fasten the tensioning device to the drive shaft 3.
- the clamping device itself ( Fig. 1 . 3 and 4 ) has a central threaded connector 5 with a thread 4 of the drive shaft 3 matching base thread 6. This can be screwed to the thread 4 of the drive shaft 3.
- the central threaded connector 5 further has a socket-side flange 7, on which the base thread 6 ends.
- the handwheel 8 carries outside a handle ring 9, for example made of thermoplastic material to a to achieve better grip of the handwheel 8.
- the hand wheel 8 has a much larger diameter than the threaded connector 5, so that it is good and comfortable by the hand of an operator and can be packed with good efficiency.
- a power transmission connection Between the handwheel 8 and the threaded connector 5 is a power transmission connection.
- the return spring 13 forms here at the same time a frictional rotational drive connection of the handwheel 8 with the threaded connector 5, so that the handwheel 8 can be rotated with the threaded connector 5 as a unit, as long as the opposing forces do not exceed a certain level.
- the rotary driving connection by the return spring 13 may also be a surmountable positive rotational drive connection, for example by a wave-shaped embodiment of the return spring 13 or an additional wave-shaped disc.
- Fig. 1 One recognizes in Fig. 1 in that here the handwheel 8 with the threaded connection 5 forms a unit which can be screwed together with the thread 4 of the drive shaft 3.
- the return spring 13 between the handwheel 8 and the threaded connector 5 By the return spring 13 between the handwheel 8 and the threaded connector 5, a frictional engagement is generated here, which allows handling of the clamping device as a unit. If this unit is screwed by means of the base thread 6 on the threaded connector 5 in the (not shown here) thread 4 of the drive shaft 3, so continues this until the socket-side flange 7 meets the end face of the drive shaft 3. Now a further screwing of the base thread 6 with the thread 4 is no longer possible.
- the drive shaft 3 as a thread 4 has an external thread on which the internal thread designed as a base thread 6 of the threaded connector 5 is screwed.
- This construction is also possible with the clamping device according to the invention.
- This in Fig. 1 illustrated embodiment shows that here the base thread 6 is carried out on the threaded connector 5 as an external thread, in such a way that it ends at the nozzle-side flange 7. This fits a hollow, internally threaded drive shaft 3 ( Fig. 4 ).
- the additional thread 10 on the threaded connector 5 is designed as an external thread. Accordingly, then the additional mating thread 11 on the handwheel 8 is an internal thread. Again, the reverse arrangement could be realized without changing the operating principle of the clamping device according to the invention something.
- Fig. 1 further shows a construction by which it is ensured that the handwheel 8 is secured to the threaded connector 5 against unscrewing.
- the illustrated embodiment has the threaded connector 5 between the Stutzen-side flange 7 and the support flange 12 for the return spring 13 an annular groove 15, projecting into the radially from the outside blocking pins 16 on the handwheel 8.
- This allows the handwheel 8 only up to the in Fig. 1 shown extent against the threaded connector 5 are screwed up. Is that in Fig. 1 Reaches the handwheel 8 then the threaded connector 5 so that the base thread 6 can be unscrewed from the thread 4 of the drive shaft 3.
- Fig. 2 shows the handwheel 8 in plan view and dashed in plan view not visible to areas with the blocking pins 16 in the annular groove 15th
- the illustrated embodiment shows the embodiment of the return spring 13 as a plate spring.
- a plate spring could be e.g. be provided an elastically deformable spring washer or a wave washer made of spring steel. It is essential that on the one hand the restoring spring action is provided, on the other hand a frictional rotational drive of the threaded neck 5 is ensured by the handwheel 8 when screwing the base thread 6 in the thread 4 of the drive shaft 3.
- a helical compression spring there is also a helical compression spring.
- Fig. 1 It is shown that the return spring 13 is well protected within the clamping device and thus arranged insensitive to contamination. Namely, it is provided that the return spring 13 is arranged in a chamber 17 formed between the handwheel 8 and the support flange 12 on the threaded connector 5.
- FIG. 3 to 6 shown further embodiment initially shows a similar construction as that in the Fig. 1 and 2 illustrated first embodiment.
- the tool 1 with the pressure disk 1 'located on the flange 2 of the drive shaft 3 so that the relationships can be understood with built-clamping device.
- the Fig. 3 4 and 5 are the same reference numerals for the same components as in the Fig. 1 and 2 used.
- Fig. 4 it can be seen that the nozzle-side flange 7 of the threaded neck 5 is not axially engageable on the tool 1, but only on the front side of the drive shaft 3. It is thus the case that the frictional clamping of the tool 1 with the pressure disk 1 'on the flange 2 of the drive shaft 3 takes place only by means of the pressure flange 14 on the handwheel 8. This leads to the inventively convenient tool-free solubility of the clamping device, although no complicated transmission is provided.
- FIG. 3 A comparison of FIG. 3 and FIG. 4 further shows the following:
- Fig. 3 the handwheel 8 has been largely screwed upward relative to the threaded connector 5 on the additional thread 10 until shortly before blocking by the annular flange of the locking screw 18. This is the starting position of the clamping device. In this position, the clamping device can be handled as a unit because of the frictional coupling of handwheel 8 and threaded connector 5 by the return spring 13 in the chamber 17.
- FIG. 3 and 4 show, moreover, a further embodiment of the clamping device according to the invention such that between the pressure flange 14 and the handwheel 8 additionally a friction-reducing intermediate element 20 is arranged.
- it is a roller bearing assembly.
- This shows a lower, the pressure flange 14 forming bearing disc, about the bearing rollers 21 and above an upper bearing plate 22, which in turn bears frictionally on the handwheel 8.
- Fig. 1 between the pressure flange 14 and the tool 1 existing sliding friction is replaced in this embodiment by the realized in the intermediate element 20 - lower - rolling friction ( Fig. 4 ).
- Fig. 6 shows for further explanation a perspective view of a clamping device according to Fig. 3 in which one recognizes particularly well the existing of elastomeric gripper ring 9 on the handwheel 8.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Gripping On Spindles (AREA)
- Automatic Tool Replacement In Machine Tools (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
Die Erfindung betrifft eine Spanneinrichtung zum werkzeuglosen axialen Festspannen eines scheibenförmigen Werkzeugs mit den Merkmalen des Oberbegriffs von Anspruch 1.The invention relates to a clamping device for tool-free axial clamping of a disc-shaped tool with the features of the preamble of
Spanneinrichtungen der in Rede stehenden Art sind für Standwerkzeugmaschinen und Handwerkzeugmaschinen, bei denen ein scheibenförmiges Werkzeug von Zeit zu Zeit verschleißbedingt ausgewechselt und ein neues Werkzeug festgespannt werden muß, seit langer Zeit bekannt. Werkzeugmaschinen der in Rede stehenden Art sind insbesondere Tischkreissägen, Handkreissägen, Winkelschleifer etc.. Werkzeuge der in Rede stehenden Art sind insbesondere Sägeblätter, Schleifscheiben, Gummiteller o.dgl..Clamping devices of the type in question are for stationary machine tools and hand tool machines in which a disc-shaped tool replaced from time to time due to wear and a new tool must be tightened, known for a long time. Machine tools of the type in question are in particular table saws, circular saws, angle grinders etc .. Tools of the type in question are in particular saw blades, grinding wheels, rubber plates or the like.
Das Bestreben bei Spanneinrichtungen der in Rede stehenden Art geht dahin, werkzeuglos arbeiten zu können. Ein Problem besteht dabei darin, daß die Spanneinrichtung so ausgelegt sein muß, daß sie sich im Betrieb der Werkzeugmaschine keinesfalls von selbst lösen kann. Das führt dazu, daß sich die Spanneinrichtung im Betrieb der Werkzeugmaschine von selbst immer weiter festzieht. Deshalb muß man zum Lösen des Werkzeugs im Regelfall groß dimensionierte Hilfswerkzeuge einsetzen.The aim of clamping devices of the type in question is to be able to work without tools. A problem consists in the fact that the clamping device must be designed so that they can not solve themselves in the operation of the machine tool by itself. This causes the clamping device to tighten itself in operation of the machine tool on its own. Therefore you have to use to release the tool usually large-sized auxiliary tools.
Eine Methode, um werkzeuglos arbeiten zu können besteht darin, das Handrad einstückig mit dem Gewindestutzen auszuführen und den Gewindestutzen mit der Antriebswelle auf Block zu verschrauben. Zwischen dem mit dem Gewindestutzen drehfest verbundenen Handrad und einem den stutzenseitigen Flansch des Gewindestutzens außen umgebenden Druckflansch, der gegenüber dem Handrad axial verstellbar ist, befindet sich ein als starke Schraubendruckfeder ausgeführtes Federelement, das die Kraft zum axialen Festspannen des Werkzeugs am Flansch der Antriebswelle definiert bereitstellt (
Bei der bekannten Spanneinrichtung, von der die Erfindung ausgeht (
Die Konstruktion der Spanneinrichtung mit Planetengetriebe ist natürlich relativ aufwendig. Der Lehre liegt daher das Problem zugrunde, eine gattungsgemäße Spanneinrichtung so auszugestalten, daß sie die gewünschte axiale Entlastungsfunktion beim Lösen der Spanneinrichtung erzielt, ohne daß ein Getriebe, insbesondere ein Planetengetriebe, eingesetzt werden muß.The construction of the clamping device with planetary gear is of course relatively expensive. The teaching is therefore based on the problem, a generic clamping device in such a way that it achieves the desired axial unloading function when releasing the clamping device, without a transmission, in particular a planetary gear, must be used.
Die Lehre der Erfindung löst das zuvor aufgeworfene Problem bei einer Spanneinrichtung mit den Merkmalen des Oberbegriffs von Anspruch 1 durch die Merkmale des kennzeichnenden Teils von Anspruch 1. Bevorzugte Ausgestaltungen und Weiterbildungen sind Gegenstand der Unteransprüche.The teaching of the invention solves the problem previously raised in a clamping device with the features of the preamble of
Erfindungsgemäß ist der Gewindestutzen der Spanneinrichtung mit zwei Gewinden unterschiedlicher Steigung versehen. Das Basisgewinde mit großer Steigung erlaubt das schnelle Befestigen der Spanneinrichtung an der Antriebswelle. Bei dieser Maßnahme tritt das Handrad mit dem Zusatzgewinde noch nicht in Funktion. Wie im Stand der Technik kann insoweit die Spanneinrichtung als eine Einheit wie eine übliche Spannmutter gehandhabt werden. Im weiteren Verlauf der Spannbewegung beim Aufspannen eines Werkzeugs tritt das Handrad in Funktion. Dessen zum Zusatzgewinde am Gewindestutzen passendes Zusatzgegengewinde weist eine wesentlich geringere Steigung als das Basisgewinde auf. Dementsprechend kann auf dem letzten Wegstück der Spannbewegung des Druckflansches am Handrad eine erhebliche Anpreßkraft erreicht werden.According to the threaded connector of the clamping device is provided with two threads of different pitch. The base pitch with large pitch allows quick attachment of the tensioner to the drive shaft. In this measure, the handwheel with the additional thread does not yet come into operation. As in the prior art, the tensioning device can be handled as a unit such as a conventional clamping nut. In the course of the clamping movement when clamping a tool, the handwheel comes into operation. Its additional thread for the additional thread on the threaded neck has a much lower pitch than the base thread. Accordingly, on the last stretch of the Clamping movement of the pressure flange on the hand wheel a considerable contact pressure can be achieved.
Die zwischen dem Handrad und dem Gewindestutzen befindliche Rückstellfeder stellt sicher, daß das Zusatzgegengewinde am Handrad auf dem Zusatzgewinde am Gewindestutzen nicht auf Block gefahren werden kann. Ein übermäßiges Festziehen an dieser Stelle wird verhindert. Beim Lösen der Spanneinrichtung kann somit der Reibschluß des Druckflansches am Werkzeug von Hand überwunden werden, die Spanneinrichtung ist werkzeuglos verwendbar.The return spring located between the handwheel and the threaded connector ensures that the additional mating thread on the handwheel on the additional thread on the threaded connector can not be moved to block. Excessive tightening at this point is prevented. When releasing the clamping device thus the frictional engagement of the pressure flange on the tool can be overcome by hand, the clamping device can be used without tools.
Im folgenden wir die Erfindung anhand einer lediglich Ausführungsbeispiele darstellenden Zeichnung näher erläutert. Bevorzugte Ausgestaltungen und Vorteile der Lehre der Erfindung werden in diesem Zusammenhang ausführlich mit beschrieben. In der Zeichnung zeigt
- Fig. 1
- in einem Schnitt ein erstes Ausführungsbeispiel einer erfindungsgemäßen Spanneinrichtung,
- Fig. 2
- die Spanneinrichtung aus
Fig. 1 in Draufsicht, wobei die Lage des Schnittes gemäßFig. 1 mit I-I angedeutet ist, - Fig. 3
- in einer
Fig. 1 entsprechenden Darstellung ein zweites Ausführungsbeispiel einer erfindungsgemäßen Spanneinrichtung, - Fig. 4
- die Darstellung aus
Fig. 3 mit eingezeichnetem Werkzeug, - Fig. 5
- in einer
Fig. 2 entsprechenden Darstellung eine Draufsicht auf die Spanneinrichtung ausFig. 4 , die Schnittlage mit IV-IV eingezeichnet, - Fig. 6
- in perspektivischer Ansicht die Spanneinrichtung aus
Fig. 3 .
- Fig. 1
- in a section a first embodiment of a clamping device according to the invention,
- Fig. 2
- the clamping device off
Fig. 1 in plan view, the position of the section according toFig. 1 indicated by II, - Fig. 3
- in a
Fig. 1 corresponding representation of a second embodiment of a clamping device according to the invention, - Fig. 4
- the presentation
Fig. 3 with marked tool, - Fig. 5
- in a
Fig. 2 corresponding representation of a plan view of the clamping deviceFig. 4 , the cutting position with IV-IV drawn, - Fig. 6
- in a perspective view of the clamping device
Fig. 3 ,
Die in
Das Ausführungsbeispiel von
Dargestellt in
Die Spanneinrichtung selbst (
Am Gewindestutzen 5, und zwar an dessen vom stutzenseitigen Flansch 7 abgewandten Ende, befindet sich koaxial zum Gewindestutzen 5 angebracht ein gegenüber dem Gewindestutzen 5 drehbares und axial verlagerbares Handrad 8. Das Handrad 8 trägt außen einen Griffkranz 9, beispielsweise aus thermoplastischem Kunststoff, um eine bessere Griffigkeit des Handrades 8 zu erzielen. Das Handrad 8 hat einen wesentlich größeren Durchmesser als der Gewindestutzen 5, so daß es von der Hand einer Bedienungsperson gut und bequem und mit gutem Wirkungsgrad gepackt werden kann. Zwischen dem Handrad 8 und dem Gewindestutzen 5 befindet sich eine Kraftübertragungsverbindung.At the threaded
Bis hierhin stimmen die Ausführungsbeispiele von
In dem in
Die Rückstellfeder 13 bildet hier zugleich eine reibschlüssige Drehmitnahmeverbindung des Handrades 8 mit dem Gewindestutzen 5, so daß das Handrad 8 mit dem Gewindestutzen 5 als Einheit gedreht werden kann, solange die Gegenkräfte ein bestimmtes Maß nicht überschreiten. Die Drehmitnahmeverbindung durch die Rückstellfeder 13 kann auch eine überwindbar-formschlüssige Drehmitnahmeverbindung sein, beispielsweise durch eine wellenförmige Ausführung der Rückstellfeder 13 oder eine zusätzliche wellenförmige Scheibe. Durch kalottenartige Vertiefungen und darin eingreifende Vorsprünge, die bei Überschreiten eines bestimmten Drehmomentes gegen Federkraft zurückgedrückt werden, ergibt sich so eine an sich formschlüssige, aber gegen Federkraft überwindbare Drehmitnahmeverbindung.The
Man erkennt in
Im Stand der Technik weist die Antriebswelle 3 als Gewinde 4 ein Außengewinde auf, auf das das als Innengewinde ausgeführte Basisgewinde 6 des Gewindestutzens 5 aufgeschraubt wird. Diese Konstruktion ist auch bei der erfindungsgemäßen Spanneinrichtung möglich. Das in
In entsprechender Weise ist auch das Zusatzgewinde 10 am Gewindestutzen 5 als Außengewinde ausgeführt. Dementsprechend ist dann das Zusatzgegengewinde 11 am Handrad 8 ein Innengewinde. Auch dort könnte die umgekehrte Anordnung realisiert werden, ohne am Funktionsprinzip der erfindungsgemäßen Spanneinrichtung etwas zu ändern.In a corresponding manner, the additional thread 10 on the threaded
Das dargestellte Ausführungsbeispiel zeigt die Ausführung der Rückstellfeder 13 als Tellerfeder. Hier könnte z.B. eine elastisch verformbare Federscheibe vorgesehen sein oder auch eine Wellenscheibe aus Federstahl. Wesentlich ist, daß einerseits die Rückstell-Federwirkung bereitgestellt wird, andererseits eine reibschlüssige Drehmitnahme des Gewindestutzens 5 durch das Handrad 8 beim Einschrauben des Basisgewindes 6 in das Gewinde 4 der Antriebswelle 3 gewährleistet ist. Als eine in der Praxis gut geeignete Alternative bietet sich auch eine Schraubendruckfeder an.The illustrated embodiment shows the embodiment of the
In
Das in den
In
Ein Vergleich von
In
Diese Einheit wird in das in
Ist der zuvor erläuterte Zustand erreicht, so ist jedoch das Werkzeug 1 noch nicht hinreichend festgespannt. Um das zu erreichen wird nun das Handrad 8 weitergedreht, und zwar unter Überwindung des Reibschlusses der Rückstellfeder 13. Dadurch wird der Druckflansch 14 an die Druckscheibe 1' angepreßt, diese überträgt die Anpreßkraft auf das Werkzeug 1. Dadurch wird das Werkzeug 1 letztlich am Flansch 2 festgespannt. Man erkennt das in
Anders als beim Ausführungsbeispiel von
Claims (9)
mit einem zentralen Gewindestutzen (5) mit einem zum Gewinde (4) der Antriebswelle (3) passenden Basisgewinde (6), das mit dem Gewinde (4) der Antriebswelle (3) verschraubbar ist, und einem stutzenseitigen Flansch (7),
mit einem am Gewindestutzen (5) an dessen vom stutzenseitigen Flansch (7) abgewandten Ende koaxial angebrachten, gegenüber dem Gewindestutzen (5) drehbaren und axial verlagerbaren Handrad (8) mit wesentlich größerem Durchmesser als der Gewindestutzen (5) und
mit einer Kraftübertragungsverbindung zwischen dem Handrad (8) und dem Gewindestutzen (5),
dadurch gekennzeichnet,
daß der Gewindestutzen (5) an seinem vom stutzenseitigen Flansch (7) abgewandten Ende ein Zusatzgewinde (10) mit einer wesentlich geringeren Steigung als das Basisgewinde (6) aufweist,
daß das Handrad (8) ein zum Zusatzgewinde (10) passendes Zusatzgegengewinde (11) aufweist, das mit dem Zusatzgewinde (10) verschraubt ist,
daß zwischen dem Handrad (8) und einem Stützflansch (12) am Gewindestutzen (5) eine axial wirkende, das Handrad (8) axial vom Gewindestutzen (5) wegdrückende Rückstellfeder (13) angeordnet ist, die zugleich eine reibschlüssige oder überwindbar-formschlüssige Drehmitnahmeverbindung des Handrades (8) mit dem Gewindestutzen (5) herstellt, und
daß am Handrad (8) an dessen dem stutzenseitigen Flansch (7) des Gewindestutzens (5) zugewandten Seite ein den stutzenseitigen Flansch (7) des Gewindestutzens (5) außen umgebender Druckflansch (14) angeordnet ist, der durch Drehen des Handrades (8) relativ zum Gewindestutzen (5) axial verstellbar ist dergestalt, daß zum axialen Festspannen des Werkzeugs (1) am Flansch (2) der Antriebswelle (3) der Druckflansch (14) an das Werkzeug (1) oder eine dem Werkzeug (1) zugeordnete Druckscheibe (1') axial angepreßt wird.Clamping device for tool-free axial clamping of a disc-shaped tool (1), in particular a saw blade, on a flange (2) of a drive shaft (3) of a machine tool, in particular a circular saw, wherein the flange-side end of the drive shaft (3) has a thread (4) with a having a certain slope,
with a central threaded socket (5) with a thread (4) of the drive shaft (3) matching base thread (6) which is screwed to the thread (4) of the drive shaft (3), and a socket-side flange (7),
with a on the threaded neck (5) facing away from the nozzle side flange (7) coaxially mounted opposite the threaded neck (5) rotatable and axially displaceable handwheel (8) with a substantially larger diameter than the threaded connector (5) and
with a power transmission connection between the handwheel (8) and the threaded connector (5),
characterized,
that the threaded connection piece (5) at its from the neck side flange (7) facing away from the end of an auxiliary thread (10) having a substantially smaller pitch than the basic thread (6),
in that the handwheel (8) has an additional mating thread (11) which fits the additional thread (10) and which is screwed to the additional thread (10),
that between the handwheel (8) and a support flange (12) on the threaded neck (5), an axially acting, the handwheel (8) axially from the threaded neck (5) wegdrückende return spring (13) is arranged, which at the same time a frictional or insurmountable positive rotational drive connection the handwheel (8) with the threaded connector (5) produces, and
that the handwheel (8) facing the said nozzle-side flange (7) of the threaded stub (5) side, a the socket-side flange (7) of the threaded stub (5) externally surrounding the pressure flange (14) is arranged, which by turning the hand wheel (8) axially adjustable relative to the threaded neck (5) is such that for axial clamping of the tool (1) on the flange (2) of the drive shaft (3) of the pressure flange (14) to the tool (1) or the tool (1) associated thrust washer (1 ') is axially pressed.
daß das Basisgewinde (6) am Gewindestutzen (5) als Außengewinde ausgeführt ist und sich vorzugsweise bis zum stutzenseitigen Flansch (7) erstreckt.Clamping device according to claim 1, characterized
that the base thread (6) on the threaded connector (5) is designed as an external thread and preferably extends to the nozzle-side flange (7).
daß das Zusatzgewinde (10) am Gewindestutzen (5) als Außengewinde und das Zusatzgegengewinde (11) am Handrad (8) als Innengewinde ausgeführt ist.Clamping device according to claim 1 or 2, characterized
that the additional thread (10) on the threaded connector (5) as an external thread and the additional mating thread (11) on the handwheel (8) is designed as an internal thread.
daß der stutzenseitige Flansch (7) des Gewindestutzens (5) nicht am Werkzeug (1) bzw. der Druckscheibe (1'), sondern nur an der Stirnseite der Antriebswelle (3) axial zur Anlage bringbar ist.Clamping device according to one of claims 1 to 3, characterized
that the nozzle-side flange (7) of the threaded nozzle (5) is not axially on the tool (1) or the pressure plate (1 '), but only on the front side of the drive shaft (3) can be brought to bear.
daß das Handrad (8) am Gewindestutzen (5) gegen Abschrauben vom Gewindestutzen (5) gesichert ist.Clamping device according to one of claims 1 to 4, characterized
that the handwheel (8) on the threaded connector (5) against unscrewing from the threaded connector (5) is secured.
daß die Rückstellfeder (13) als Tellerfeder oder, vorzugsweise, als Schraubendruckfeder, ausgeführt ist.Clamping device according to one of claims 1 to 5, characterized
that the return spring (13) is designed as a plate spring or, preferably, as a helical compression spring.
daß die Rückstellfeder (13) in einer zwischen dem Handrad (8) und dem Stützflansch (12) am Gewindestutzen (5) gebildeten Kammer (17) angeordnet ist.Clamping device according to one of claims 1 to 6, characterized
that the restoring spring (13) (5) chamber formed (17) is arranged in a between the hand wheel (8) and the support flange (12) at the thread connection.
daß zwischen dem Druckflansch (14) und dem Handrad (8) ein reibungsminderndes Zwischenelement (20), insbesondere eine Wälzlager- oder Rollenlageranordnung, angeordnet ist.Clamping device according to one of claims 1 to 7, characterized
that is arranged between the pressure flange (14) and the hand wheel (8) has a friction-reducing intermediate element (20), in particular a rolling bearing or roller bearing assembly.
daß der Druckflansch (14) mit dem reibungsmindernden Zwischenelement (20) an der Spanneinrichtung insgesamt verliergesichert angebracht ist.Clamping device according to claim 8, characterized
that the pressure flange (14) with the friction-reducing intermediate element (20) is attached to the clamping device as a whole secured against loss.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007028892A DE102007028892B3 (en) | 2007-06-20 | 2007-06-20 | Clamping device for tool-free clamping |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2006058A1 true EP2006058A1 (en) | 2008-12-24 |
EP2006058B1 EP2006058B1 (en) | 2010-04-28 |
Family
ID=39672979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08008708A Active EP2006058B1 (en) | 2007-06-20 | 2008-05-09 | Clamping device for tool-less tightening |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2006058B1 (en) |
AT (1) | ATE465855T1 (en) |
DE (2) | DE102007028892B3 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2210720A1 (en) * | 2009-01-21 | 2010-07-28 | Felder KG | Frictional rotation tool attachment device |
WO2015075001A1 (en) * | 2013-11-25 | 2015-05-28 | Robert Bosch Gmbh | Tool free bolt system for a saw blade |
US20150209975A1 (en) * | 2014-01-30 | 2015-07-30 | Makita Corporation | Cutting devices |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202009000482U1 (en) | 2009-01-13 | 2010-05-27 | Metabowerke Gmbh | Clamping device for tool-free clamping |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH449931A (en) * | 1966-12-06 | 1968-01-15 | Perles Elektrowerkzeuge & Moto | Clamping device for the blade of a hand-held circular saw |
DE3012836A1 (en) | 1980-04-02 | 1981-10-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Angle-grinder disc clamping equipment - has clamping flange supported by spring from nut with centring boss |
DE3700968A1 (en) | 1987-01-15 | 1988-08-04 | Bosch Gmbh Robert | TENSIONING DEVICE FOR AXIAL CLAMPING OF A TOOL, IN PARTICULAR A DISC |
DE3826017A1 (en) * | 1987-09-16 | 1989-03-30 | Metabowerke Kg | DEVICE FOR CLAMPING DISC-SHAPED TOOLS ON A HAND MACHINE TOOL |
DE10258372A1 (en) * | 2001-12-12 | 2003-06-26 | S B Power Tool Company Broadvi | Blade clamp for electric tool has latching element axially movable relative to bolt head between axial position not engaged with flange, position engaging flange to inhibit relative rotation |
US20060096436A1 (en) * | 2002-02-15 | 2006-05-11 | Alan Phillips | Blade clamp assembly |
-
2007
- 2007-06-20 DE DE102007028892A patent/DE102007028892B3/en not_active Expired - Fee Related
-
2008
- 2008-05-09 DE DE502008000591T patent/DE502008000591D1/en active Active
- 2008-05-09 AT AT08008708T patent/ATE465855T1/en active
- 2008-05-09 EP EP08008708A patent/EP2006058B1/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH449931A (en) * | 1966-12-06 | 1968-01-15 | Perles Elektrowerkzeuge & Moto | Clamping device for the blade of a hand-held circular saw |
DE3012836A1 (en) | 1980-04-02 | 1981-10-08 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Angle-grinder disc clamping equipment - has clamping flange supported by spring from nut with centring boss |
DE3700968A1 (en) | 1987-01-15 | 1988-08-04 | Bosch Gmbh Robert | TENSIONING DEVICE FOR AXIAL CLAMPING OF A TOOL, IN PARTICULAR A DISC |
DE3826017A1 (en) * | 1987-09-16 | 1989-03-30 | Metabowerke Kg | DEVICE FOR CLAMPING DISC-SHAPED TOOLS ON A HAND MACHINE TOOL |
DE10258372A1 (en) * | 2001-12-12 | 2003-06-26 | S B Power Tool Company Broadvi | Blade clamp for electric tool has latching element axially movable relative to bolt head between axial position not engaged with flange, position engaging flange to inhibit relative rotation |
US20060096436A1 (en) * | 2002-02-15 | 2006-05-11 | Alan Phillips | Blade clamp assembly |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2210720A1 (en) * | 2009-01-21 | 2010-07-28 | Felder KG | Frictional rotation tool attachment device |
WO2015075001A1 (en) * | 2013-11-25 | 2015-05-28 | Robert Bosch Gmbh | Tool free bolt system for a saw blade |
CN105916647A (en) * | 2013-11-25 | 2016-08-31 | 罗伯特·博世有限公司 | Tool free bolt system for a saw blade |
US20160288359A1 (en) * | 2013-11-25 | 2016-10-06 | Robert Bosch Gmbh | Tool free bolt system for a saw blade |
US10549449B2 (en) * | 2013-11-25 | 2020-02-04 | Robert Bosch Gmbh | Tool free bolt system for a saw blade |
US20150209975A1 (en) * | 2014-01-30 | 2015-07-30 | Makita Corporation | Cutting devices |
JP2015163422A (en) * | 2014-01-30 | 2015-09-10 | 株式会社マキタ | cutting machine |
US9789624B2 (en) * | 2014-01-30 | 2017-10-17 | Makita Corporation | Cutting devices |
DE102015001146B4 (en) * | 2014-01-30 | 2020-10-08 | Makita Corporation | Cutting device |
Also Published As
Publication number | Publication date |
---|---|
DE502008000591D1 (en) | 2010-06-10 |
DE102007028892B3 (en) | 2008-12-04 |
ATE465855T1 (en) | 2010-05-15 |
EP2006058B1 (en) | 2010-04-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0330672B1 (en) | Clamping device for axially tightening a tool, in particular a disk | |
EP0334864B1 (en) | Clamping device for axially tightening a tool, especially a disk | |
DE3623555C2 (en) | ||
DE3841181C2 (en) | ||
CH648505A5 (en) | SPARK PLUG KEY IN WHICH THE TORQUE TO BE TRANSMITTED MAXIMUM IN ONE DIRECTION CAN BE SET. | |
DE202013101235U1 (en) | torque wrench | |
DE102006001986A1 (en) | Clamping device for releasably securing a disc-shaped tool | |
WO1988006075A1 (en) | Clamping device for the axial clamping of a tool, particularly a mill | |
CH670063A5 (en) | ||
EP2006058B1 (en) | Clamping device for tool-less tightening | |
EP0239670B1 (en) | Motor-driven machine with torque adjustment, in particular an electrical hand tool | |
DE3523746A1 (en) | Quick-action clamping device for rotating disc-shaped tools | |
DE3919648C2 (en) | Angle screwdriver | |
EP3411185B1 (en) | Clamping device | |
CH686238A5 (en) | Portable power tool, in particular angle grinder. | |
DE202009000482U1 (en) | Clamping device for tool-free clamping | |
DE2215322A1 (en) | Rotatable screw nut connection | |
DE19938299B4 (en) | Machine tool with a drive device for driving a rotating machine tool | |
EP3279492B1 (en) | Tensioning device for tools | |
DE102017109117B4 (en) | Screwdriver and procedure for tightening a screw | |
DE10038347C2 (en) | Quick nut | |
WO2006061291A1 (en) | Machine tool, especially diamond drill | |
EP1559509B1 (en) | Device for mounting a grinding tool to a machine tool | |
DE4017406A1 (en) | Clamping circular saw blade to driving shaft - involves ring with radially mounted rollers which engage helical grooves | |
DE10137625B4 (en) | Quick nut |
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 |
|
17P | Request for examination filed |
Effective date: 20081105 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
17Q | First examination report despatched |
Effective date: 20090302 |
|
AKX | Designation fees paid |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
RTI1 | Title (correction) |
Free format text: CLAMPING DEVICE FOR TOOL-LESS TIGHTENING |
|
GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REF | Corresponds to: |
Ref document number: 502008000591 Country of ref document: DE Date of ref document: 20100610 Kind code of ref document: P |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: T3 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20100428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: NO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100728 Ref country code: LT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100808 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
BERE | Be: lapsed |
Owner name: METABOWERKE G.M.B.H. Effective date: 20100531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: HR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: LV Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: IS Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100828 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 Ref country code: PL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100602 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: EE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: SK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: RO Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 |
|
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 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100531 |
|
26N | No opposition filed |
Effective date: 20110131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100729 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20120522 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100928 Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20100509 Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20101029 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20120523 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100428 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BG Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20100728 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130531 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130509 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 465855 Country of ref document: AT Kind code of ref document: T Effective date: 20130509 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20130509 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 10 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20170522 Year of fee payment: 10 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 11 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MM Effective date: 20180601 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20180601 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20200519 Year of fee payment: 13 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20200522 Year of fee payment: 13 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20210509 |
|
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 NON-PAYMENT OF DUE FEES Effective date: 20210509 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20210531 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230519 Year of fee payment: 16 |