EP0951974A1 - Knife holding device in rotary heads for woodworking - Google Patents

Knife holding device in rotary heads for woodworking Download PDF

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Publication number
EP0951974A1
EP0951974A1 EP99107411A EP99107411A EP0951974A1 EP 0951974 A1 EP0951974 A1 EP 0951974A1 EP 99107411 A EP99107411 A EP 99107411A EP 99107411 A EP99107411 A EP 99107411A EP 0951974 A1 EP0951974 A1 EP 0951974A1
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EP
European Patent Office
Prior art keywords
plate
knife
base body
knife plate
radially inner
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99107411A
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German (de)
French (fr)
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EP0951974B1 (en
Inventor
Domenico De Marco
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Utensilea Sas
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Utensilea Sas
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Publication of EP0951974A1 publication Critical patent/EP0951974A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G13/00—Cutter blocks; Other rotary cutting tools
    • B27G13/02—Cutter blocks; Other rotary cutting tools in the shape of long arbors, i.e. cylinder cutting blocks
    • B27G13/04—Securing the cutters by mechanical clamping means

Definitions

  • the invention relates to a knife holder for knife heads for woodworking. With such cutter heads is for a precise knife positioning important to a to achieve good work results, but also the Safety of the knife holder due to the high cutter head speeds and therefore the one acting on the clamped knife high centrifugal forces.
  • a knife head is known from WO 94/03 311, in which the knife plates with the help of clamping plates in recesses of the base body are held such that the knife plate each with its rear surface on one in the recess of the Base body formed contact surface and the clamping plate by means of one inserted in the base body and in screwed the clamping plate against the Front surface of the knife plate is clamped to this against to clamp the contact surface of the base body, and the Tension screw is designed as a tension screw and radial inside the lower edge of the cutter plate Threaded hole of the clamping plate is screwed in.
  • the knife plate is a dowel in the contact surface of the base body, which in one in the Grooved groove on the radially inner cutting edge intervenes.
  • the radial securing of the knife plate against the centrifugal forces act in that the knife plate a ground in near its radially inner edge Has transverse groove, in which a corresponding Raised rib engages on the clamping plate.
  • the clamping plate is formed radially on the inside with a bulge which corresponding recess radially within the contact surface of the base body engages for the knife plate, such that the clamping plate by a certain amount after loosening the clamping screw Dimension within the recess of the base body from the knife plate can be tilted away, creating the cross rib of the clamping plate comes out of engagement with the transverse groove of the knife plate and the Knife plate can be removed from the knife head, without completely unscrewing the clamping screw and removing the clamping plate is necessary.
  • a disadvantage of the known arrangement is that in the cutter groove formed for radial securing, because this weakening the knife plate in the radially inner region and thus forms a potential fault line so that the necessary level of security not necessarily guaranteed is.
  • the invention is therefore based on the object of a knife holder to create in cutter heads that are under warranty a greater degree of security and inserting the knife plates without completely loosening the Allows clamping screws and the clamping plates.
  • the arrangement according to the invention has the advantage that in essentially without weakening the integrity of the knife plate in the radially inner area a positive radial Fuse is achieved, the radial securing means can take over the axial definition at the same time, and nevertheless removing and inserting the knife plates in the cutter head without completely removing the clamping screws and the clamping plates is possible, rather the clamping screws only to be loosened to a certain degree.
  • Fig. 1 shows a section of a cutter head with a Base body 1, a recess 2 formed therein for receiving a knife plate 3 with the associated clamping plate 4, the radially outer part of the recess 2 as a flute serves, and with a dashed line as an invisible part Clamping screw 5, the screw holder from Simplification is not shown, and finally with dowel pins 6 for positioning the knife plates.
  • the clamping screw 5 acts as a lag screw and is radial within the inner end of the knife plate 3 below this screwed into the clamping plate 4. While dressing the clamping screw is the clamping plate 4 against the Front of the knife plate 3 tensioned and tensions the knife plate with the back surface against the corresponding plane Contact surface of the base body 1.
  • the clamping plate 4 engages with your bead-shaped radially inner end 4a into the tapered radially inner end the recess 2 and there is a hinge-like one small angular distance foldable.
  • On the front is the Clamping plate 4 a nose 4b, which with play in a top through a projection 1 a limited recess 1 b in the base body intervenes.
  • the clamping plate 4 a bit forward from the knife plate 3 or from this Tilt the supporting contact surface of the base body 1 away the tilting movement hinge-like on its radially inner one bead-like end 4a and the nose 4b a little further in immerses the recess 1b.
  • the knife plate 3 can then as can be seen from Fig. 4, which loosened and shows the tilted position of the clamping plate 4, also tilted forward from the contact surface of the base body (this is also shown in Fig. 4) and then radial outwards, as indicated by the arrow, out of the knife head be pulled out.
  • Recess in the base body 1 for receiving the clamping screw 5 is designed so that the correct support for tightening the clamping screw is guaranteed in loosened state the clamping screw 5 but together with the Clamping plate 4 somewhat in the relevant radial plane of the cutter head is tiltable.
  • the knife insert 3 is shown in more detail in FIGS. 2 and 3 shown, namely in Fig. 2 perspective obliquely from rear, and in Fig. 3 in front view. As you can see, it is Knife plate 3 near its radially inner edge 3a with two lateral incisions 3b, in which in the cutter head inserted knife plate engage the dowel pins 6 and thus position the knife plate radially and axially and to back up.
  • the cutting edge 3c of the knife plate 3 is located 3 and 4 above.
  • the knife plate can also have for example a central hole-like opening and a recess corresponding to the recesses 3d can be made of this run to the radially inner edge 3a.
  • cutouts 3d which are not in terms of their precision are critical, can already in the raw state of the knife plate 3 can be incorporated.

Abstract

The holder has a mating pin (6) inserted into the contact surface of a base body (1) that engages an opening in the blade plate (3) at a radial distance from the radially inner blade plate edge to secure the blade plate radially in the blade head by shape locking. An aperture (3d) in the blade plate between the opening and edge in the form of a flat channel-like recess is radially aligned with the mating pin and its width corresponds to the pin diameter.

Description

Die Erfindung betrifft eine Messerhalterung für Messerköpfe für die Holzbearbeitung. Bei solchen Messerköpfen ist zum einen eine präzise Messerpositionierung von Bedeutung, um ein gutes Arbeitsergebnis zu erreichen, zum anderen aber auch die Sicherheit der Messerhalterung wegen der hohen Messerkopfdrehzahlen und den daher auf die eingespannten Messer wirkenden hohen Fliehkräfte.The invention relates to a knife holder for knife heads for woodworking. With such cutter heads is for a precise knife positioning important to a to achieve good work results, but also the Safety of the knife holder due to the high cutter head speeds and therefore the one acting on the clamped knife high centrifugal forces.

Aus der WO 94/03 311 ist ein Messerkopf bekannt, bei welchem die Messerplatten mit Hilfe von Spannplatten in Ausnehmungen des Grundkörpers derart gehaltert sind, daß die Messerplatte jeweils mit ihrer Rückfläche an einer in der Ausnehmung des Grundkörpers gebildeten Anlagefläche anliegt und die Spannplatte mittels einer in den Grundkörper eingesetzten und in die Spannplatte eingeschraubten Spannschraube gegen die Frontfläche der Messerplatte gespannt wird, um diese gegen die Anlagefläche des Grundkörpers zu spannen, und wobei die Spannschraube als Zugschraube ausgebildet ist und radial innerhalb der Unterkante der Messerplatte hindurch in eine Gewindebohrung der Spannplatte eingeschraubt ist. Zur axialen Positionierung der Messerplatte ist ein Paßstift in die Anlagefläche des Grundkörpers eingesetzt, der in eine in die radial innenliegende Messerplattenkante eingeschliffene Nut eingreift. Die radiale Sicherung der Messerplatte gegen die einwirkenden Fliehkräfte erfolgt dadurch, daß die Messerplatte nahe ihrer radial innenliegenden Kante eine eingeschliffene Quernut aufweist, in welche eine entsprechende erhabene Rippe an der Spannplatte eingreift. Die Spannplatte ist radial innen mit einem Wulst ausgebildet, der in eine entsprechende Ausnehmung radial innerhalb der Anlagefläche des Grundkörpers für die Messerplatte eingreift, derart, daß die Spannplatte nach Lösen der Spannschraube um ein gewisses Maß innerhalb der Ausnehmung des Grundkörpers von der Messerplatte weg kippbar ist, wodurch die Querrippe der Spannplatte außer Eingriff mit der Quernut der Messerplatte kommt und die Messerplatte aus dem Messerkopf herausgenommen werden kann, ohne daß ein vollständiges Herausschrauben der Spannschraube und Herausnehmen der Spannplatte notwendig ist.A knife head is known from WO 94/03 311, in which the knife plates with the help of clamping plates in recesses of the base body are held such that the knife plate each with its rear surface on one in the recess of the Base body formed contact surface and the clamping plate by means of one inserted in the base body and in screwed the clamping plate against the Front surface of the knife plate is clamped to this against to clamp the contact surface of the base body, and the Tension screw is designed as a tension screw and radial inside the lower edge of the cutter plate Threaded hole of the clamping plate is screwed in. For axial Positioning the knife plate is a dowel in the contact surface of the base body, which in one in the Grooved groove on the radially inner cutting edge intervenes. The radial securing of the knife plate against the centrifugal forces act in that the knife plate a ground in near its radially inner edge Has transverse groove, in which a corresponding Raised rib engages on the clamping plate. The clamping plate is formed radially on the inside with a bulge which corresponding recess radially within the contact surface of the base body engages for the knife plate, such that the clamping plate by a certain amount after loosening the clamping screw Dimension within the recess of the base body from the knife plate can be tilted away, creating the cross rib of the clamping plate comes out of engagement with the transverse groove of the knife plate and the Knife plate can be removed from the knife head, without completely unscrewing the clamping screw and removing the clamping plate is necessary.

Nachteilig ist bei der bekannten Anordnung allerdings die in der Messerplatte gebildete Quernut zur radialen Sicherung, da dies eine Schwächung der Messerplatte im radial inneren Bereich und damit eine potentielle Bruchlinie bildet so daß das notwendige Maß an Sicherheit nicht unbedingt gewährleistet ist.A disadvantage of the known arrangement, however, is that in the cutter groove formed for radial securing, because this weakening the knife plate in the radially inner region and thus forms a potential fault line so that the necessary level of security not necessarily guaranteed is.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Messerplattenhalterung in Messerköpfen zu schaffen, die bei Gewährleistung eines größeren Maßes an Sicherheit ein Herausnehmen und Einsetzen der Messerplatten ohne vollständiges Lösen der Spannschrauben und der Spannplatten ermöglicht.The invention is therefore based on the object of a knife holder to create in cutter heads that are under warranty a greater degree of security and inserting the knife plates without completely loosening the Allows clamping screws and the clamping plates.

Diese Aufgabe wird gemäß der Erfindung durch die im Patentanspruch 1 angegebene und in den Unteransprüchen vorteilhaft weiter ausgebildete Anordnung gelöst.This object is achieved according to the invention by the in claim 1 specified and advantageous in the subclaims further trained arrangement solved.

Die erfindungsgemäße Anordnung hat den Vorteil, daß im wesentlichen ohne Schwächung der Integrität der Messerplatte in deren radial innerem Bereich eine formschlüssige radiale Sicherung erreicht wird, die radialen Sicherungsmittel gleichzeitig die axiale Festlegung übernehmen können, und trotzdem ein Herausnehmen und Einsetzen der Messerplatten in den Messerkopf ohne völligen Ausbau der Spannschrauben und der Spannplatten möglich ist, vielmehr die Spannschrauben nur um ein gewisses Maß gelockert zu werden brauchen.The arrangement according to the invention has the advantage that in essentially without weakening the integrity of the knife plate in the radially inner area a positive radial Fuse is achieved, the radial securing means can take over the axial definition at the same time, and nevertheless removing and inserting the knife plates in the cutter head without completely removing the clamping screws and the clamping plates is possible, rather the clamping screws only to be loosened to a certain degree.

Ein Ausführungsbeispiel der Erfindung ist in den anliegenden Zeichnungen dargestellt und wird nachstehend mehr im einzelnen beschrieben.An embodiment of the invention is in the accompanying Drawings are shown and will be discussed in more detail below described.

In den Zeichnungen zeigt:

Fig. 1
in schematischer Darstellung einen Ausschnitt aus einem Messerkopf mit einer Messerplattenhalterung nach der Erfindung,
Fig. 2
die Messerplatte in perspektivischer Darstellung in schräger Rückansicht,
Fig. 3
die Messerplatte in Frontansicht,
Fig. 4
eine Darstellung ähnlich Fig. 1 bei gelöster Spannplatte zum Herausnehmen der Messerplatte.
In the drawings:
Fig. 1
a schematic representation of a section of a cutter head with a cutter holder according to the invention,
Fig. 2
the knife plate in a perspective view in an oblique rear view,
Fig. 3
the knife plate in front view,
Fig. 4
a representation similar to FIG. 1 with the clamping plate released for removing the knife plate.

Fig. 1 zeigt einen Ausschnitt eines Messerkopfes mit einem Grundkörper 1, einer darin gebildeten Ausnehmung 2 zur Aufnahme einer Messerplatte 3 mit der zugehörigen Spannplatte 4, wobei der radial äußere Teil der Ausnehmung 2 als Spannut dient, und mit einer als unsichtbares Teil gestrichelt eingezeichneten Spannschraube 5, wobei die Schraubenaufnahme aus Vereinfachungsgründen gar nicht dargestellt ist, und schließlich mit Paßstifen 6 zur Positionierung der Messerplatten.Fig. 1 shows a section of a cutter head with a Base body 1, a recess 2 formed therein for receiving a knife plate 3 with the associated clamping plate 4, the radially outer part of the recess 2 as a flute serves, and with a dashed line as an invisible part Clamping screw 5, the screw holder from Simplification is not shown, and finally with dowel pins 6 for positioning the knife plates.

Die Spannschraube 5 wirkt als Zugschraube und ist radial innerhalb des inneren Endes der Messerplatte 3 unter diesem hindurch in die Spannplatte 4 eingeschraubt. Beim Anziehen der Spannschraube wird also die Spannplatte 4 gegen die Frontseite der Messerplatte 3 gespannt und spannt die Messerplatte mit deren Rückfläche gegen die entsprechende ebene Anlagefläche des Grundkörpers 1.The clamping screw 5 acts as a lag screw and is radial within the inner end of the knife plate 3 below this screwed into the clamping plate 4. While dressing the clamping screw is the clamping plate 4 against the Front of the knife plate 3 tensioned and tensions the knife plate with the back surface against the corresponding plane Contact surface of the base body 1.

Die Spannplatte 4 greift mit Ihrem wulstartig ausgebildeten radial inneren Ende 4a in das verjüngte radial innere Ende der Ausnehmung 2 ein und ist dort scharnierartig um eine kleine Winkeldistanz klappbar. An ihrer Frontseite hat die Spannplatte 4 eine Nase 4b, die mit Spiel in eine oben durch einen Vorsprung 1a begrenzte Aussparung 1b im Grundkörper eingreift.The clamping plate 4 engages with your bead-shaped radially inner end 4a into the tapered radially inner end the recess 2 and there is a hinge-like one small angular distance foldable. On the front is the Clamping plate 4 a nose 4b, which with play in a top through a projection 1 a limited recess 1 b in the base body intervenes.

Wird die Spannschraube 5 gelockert, kann die Spannplatte 4 etwas nach vorne von der Messerplatte 3 bzw. von der diese abstützenden Anlagefläche des Grundkörpers 1 wegkippen, wobei die Kippbewegung scharnierartig auf ihrem radial inneren wulstartigen Ende 4a erfolgt und die Nase 4b etwas weiter in die Aussparung 1b eintaucht. Die Messerplatte 3 kann dann, wie aus Fig. 4 ersichtlich ist, welche diese gelockerte und nach vorne abgekippe Position der Spannplatte 4 zeigt, ebenfalls nach vorne von der Anlagefläche des Grundkörpers weggekippt (auch dies ist in Fig. 4 dargestellt) und sodann radial auswärts, wie durch den Pfeil angedeutet, aus dem Messerkopf herausgezogen werden. Die in den Zeichnungen nicht dargestellte Ausnehmung im Grundkörper 1 zur Aufnahme der Spannschraube 5 ist so ausgebildet, daß zwar die richtige Abstützung zum Spannen der Spannschraube gewährleistet ist, im gelockerten Zustand die Spannschraube 5 aber zusammen mit der Spannplatte 4 etwas in der betreffenden Radialebene des Messerkopfes kippbar ist.If the clamping screw 5 is loosened, the clamping plate 4 a bit forward from the knife plate 3 or from this Tilt the supporting contact surface of the base body 1 away the tilting movement hinge-like on its radially inner one bead-like end 4a and the nose 4b a little further in immerses the recess 1b. The knife plate 3 can then as can be seen from Fig. 4, which loosened and shows the tilted position of the clamping plate 4, also tilted forward from the contact surface of the base body (this is also shown in Fig. 4) and then radial outwards, as indicated by the arrow, out of the knife head be pulled out. The not shown in the drawings Recess in the base body 1 for receiving the clamping screw 5 is designed so that the correct support for tightening the clamping screw is guaranteed in loosened state the clamping screw 5 but together with the Clamping plate 4 somewhat in the relevant radial plane of the cutter head is tiltable.

Die Messerplatte 3 ist in den Fig. 2 und 3 mehr im einzelnen dargestellt, und zwar in Fig. 2 perspektivisch schräg von hinten, und in Fig. 3 in Frontansicht. Wie man sieht, ist die Messerplatte 3 nahe ihrer radial inneren Kante 3a mit zwei seitlichen Einschnitten 3b versehen, in welche bei im Messerkopf eingesetzter Messerplatte die Paßstifte 6 eingreifen und damit die Messerplatte radial und axial positionieren und sichern. Die Schneidkante 3c der Messerplatte 3 befindet sich in den Fig. 3 und 4 oben.The knife insert 3 is shown in more detail in FIGS. 2 and 3 shown, namely in Fig. 2 perspective obliquely from rear, and in Fig. 3 in front view. As you can see, it is Knife plate 3 near its radially inner edge 3a with two lateral incisions 3b, in which in the cutter head inserted knife plate engage the dowel pins 6 and thus position the knife plate radially and axially and to back up. The cutting edge 3c of the knife plate 3 is located 3 and 4 above.

Zwischen den innenliegenden Bereichen der seitlichen Einschnitte 3b und der radial innenliegenden Kante 3a der Messerplatte 3 sind auf der Messerplattenrückseite flache nutartige Aussparungen 3d gebildet, die in Radialrichtung zwischen den seitlichen Einschnitten 3b und der radial inneren Kante 3a durchlaufen und in Querrichtung dazu als flach gerundete Mulden ausgebildet sind. Die Bedeutung dieser Aussparungen 3d wird aus Fig. 4 deutlich: Ist die gelockerte Spannplatte 4 nach vorne abgekippt, kann die Messerplatte 3 ebenfalls etwas nach vorne von ihrer Anlagefläche am Grundkörper 1 weggekippt werden und nun herausgezogen werden, wobei die von der Anlagefläche im Grundkörper hervorstehenden Bereiche der Paßzapfen 6, die in die seitlichen Einschnitte 3b der Messerplatte 3 eingreifen, nun in den Aussparungen 3d Platz finden und so die Messerplatte mit ihrem radial innenliegenden Bereich an den vorderen Enden der Paßstifte 6 vorbei herausgezogen werden kann. Das Maß, um welche die Spannplatte 4 und die Messerplatte 3 nach vorne abkippbar sein müssen, um ein Auswechseln der Messerplatte zu ermöglichen, braucht also auch in der radialen Position der Paßstifte im Grundkörper 1 deutlich weniger als die Gesamtdicke der Messerplatte 3 zu betragen, also beispielsweise nur die halbe Messerplattendicke.Between the inner areas of the side incisions 3b and the radially inner edge 3a of the Knife plate 3 are flat on the back of the knife plate groove-like recesses 3d formed in the radial direction between the side incisions 3b and the radial Pass through the inner edge 3a and in the transverse direction as flat rounded troughs are formed. The importance of this Recess 3d is clear from Fig. 4: Is the loosened Tilting the clamping plate 4 forward, the knife plate 3 also slightly to the front of their contact surface on the base body 1 are tilted away and are now pulled out, whereby the protruding from the contact surface in the base body Areas of the fitting pin 6, which in the lateral incisions 3b of the knife insert 3, now in the recesses 3d Find space and so the knife plate with its radially inner Area past the front ends of the dowel pins 6 can be pulled out. The dimension by which the clamping plate 4 and the knife plate 3 can be tipped forward in order to enable the knife plate to be replaced, so also needs in the radial position of the dowel pins Base body 1 significantly less than the total thickness of the Knife plate 3 to be, for example, only half Knife plate thickness.

Statt zweier seitlicher Einschnitte 3b kann die Messerplatte auch beispielsweise eine mittige lochartige Öffnung haben und eine Aussparung entsprechend den Aussparungen 3d kann von dieser zur radial inneren Kante 3a verlaufen.Instead of two side incisions 3b, the knife plate can also have for example a central hole-like opening and a recess corresponding to the recesses 3d can be made of this run to the radially inner edge 3a.

Die Aussparungen 3d, die hinsichtlich ihrer Präzision nicht kritisch sind, können bereits im Rohzustand der Messerplatte 3 eingearbeitet werden.The cutouts 3d, which are not in terms of their precision are critical, can already in the raw state of the knife plate 3 can be incorporated.

Claims (3)

Messerkopf für die Holzbearbeitung mit einem Grundkörper (1) und in an dessen Umfang angeordneten Ausnehmungen (2) eingesetzten Messerplatten (3), die jeweils mittels einer Spannplatte (4) mit ihrer Rückfläche gegen eine Anlagefläche des Grundkörpers (1) spannbar sind, wobei die Spannplatte 4 mittels einer als Zugschraube ausgebildeten Spannschraube (5), die im wesentlichen radial innerhalb der radial innenliegenden Messerplattenkante verläuft, spannbar ist und im gelockerten Zustand innerhalb der im Grundkörper gebildeten Ausnehmung (2) um eine gewisse Distanz in Richtung von der Anlagefläche für die Messerplatte weg um ihren radial inneren Kantenbereich (4a) kippbar ist,
dadurch gekennzeichnet, daß mindestens ein in die Anlagefläche des Grundkörpers (1) eingesetzter Paßstift (6) in eine mit Radialabstand von der radial innenliegenden Messerplattenkante (3a) gebildete Öffnung (3b) der Messerplatte eingreift, um diese in Radialrichtung formschlüssig im Messerkopf zu sichern, und daß an der der Anlagefläche des Grundkörpers (1) zugewandten Messerplattenrückseite zwischen der den Paßstift (6) aufnehmenden Öffnung (3b) und der radial innenliegenden Messerplattenkante (3a) eine Aussparung (3d) in Form einer flachen kanalartigen Vertiefung verläuft, die radial mit dem Paßstift (6) fluchtet und deren Breite mindestens dem Paßstiftdurchmesser entspricht.Cutter head for woodworking with a base body (1) and cutter plates (3) inserted in recesses (2) arranged on its circumference, each of which can be clamped with its back surface against a contact surface of the base body (1) by means of a clamping plate (4), the Clamping plate 4 by means of a clamping screw (5) designed as a tension screw, which runs essentially radially within the radially inner knife plate edge, can be clamped and in the loosened state within the recess (2) formed in the base body by a certain distance in the direction from the contact surface for the knife plate can be tilted away around its radially inner edge region (4a),
characterized in that at least one dowel pin (6) inserted into the contact surface of the base body (1) engages in an opening (3b) of the knife plate formed at a radial distance from the radially inner knife plate edge (3a) in order to secure it in the radial direction in a form-fitting manner in the knife head, and that on the contact surface of the base body (1) facing the cutter plate back between the opening (3b) receiving the dowel pin (6) and the radially inner cutter plate edge (3a) there is a recess (3d) in the form of a flat channel-like depression which runs radially with the Dowel pin (6) is aligned and its width corresponds at least to the dowel pin diameter. Messerkopf nach Anspruch 1, dadurch gekennzeichnet, daß die Spannplatte (4) an ihrer von der Messerplatte (3) abgewandten Vorderseite eine Nase (4b) aufweist, die im gespannten Zustand der Spannplatte auf der radial außenliegenden Seite von einem Vorsprung (1a) des Grundkörpers teilweise überdeckt wird, und beim Abkippen der Spannplatte in deren gelockertem Zustand in eine entsprechende, im Grundkörper gebildete Vertiefung (1b) eintauchen kann.Cutter head according to claim 1, characterized in that the clamping plate (4) on its facing away from the knife plate (3) Front has a nose (4b) which in the tensioned Condition of the clamping plate on the radially outer one Part of a projection (1a) of the base body is covered, and when tilting the clamping plate in the relaxed state in a corresponding, in the body formed depression (1b) can immerse. Messerkopf nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß an der Messerplatte als zur Paßstiftaufnahme dienende Öffnungen (3b) zwei seitliche Einschnitte an den beiden Seitenkantenbereichen der Messerplatte (3) eingeschliffen sind und die flachen Aussparungen (3d) zwischen dem jeweils innenliegenden Bereich dieser Einschnitte und der radial innenliegenden Messerplattenkante (3a) gebildet sind.Cutter head according to claim 1 or 2, characterized in that that on the knife plate serving as a dowel pin Openings (3b) two side incisions on the two side edge areas the knife plate (3) are ground and the flat recesses (3d) between the inside Area of these incisions and the radially inner Knife plate edge (3a) are formed.
EP99107411A 1998-04-25 1999-04-26 Knife holding device in rotary heads for woodworking Expired - Lifetime EP0951974B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19818625A DE19818625A1 (en) 1998-04-25 1998-04-25 Knife holding device in knife heads for woodworking
DE19818625 1998-04-25

Publications (2)

Publication Number Publication Date
EP0951974A1 true EP0951974A1 (en) 1999-10-27
EP0951974B1 EP0951974B1 (en) 2001-10-31

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EP99107411A Expired - Lifetime EP0951974B1 (en) 1998-04-25 1999-04-26 Knife holding device in rotary heads for woodworking

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EP (1) EP0951974B1 (en)
AT (1) ATE207793T1 (en)
DE (2) DE19818625A1 (en)
ES (1) ES2167108T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1833647A1 (en) * 2005-01-07 2007-09-19 Iggesund Tools Ab Clamping assembly for woodworking knife
FR2899509A1 (en) * 2006-04-11 2007-10-12 Outil Elbe Sa Removable cut plate fixation device for machining of wood, has screw, socket and wedge to assure clamping force perpendicular to supporting surface of plate that presents retention arrangement cooperating with complementary arrangement
CH709488A1 (en) * 2014-04-14 2015-10-15 Oertli Werkzeuge Ag Tool head and method for inserting and clamping a cutting board and cutting board.

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EP0345570A1 (en) * 1988-06-07 1989-12-13 HAPRO GmbH Clamping indexable cutters in a rotary head for working wood or similar material
WO1994003311A1 (en) 1992-08-03 1994-02-17 Gebrüder Leitz Gmbh & Co. Cutter head, especially profile cutter head
FR2703610A1 (en) * 1993-04-06 1994-10-14 Aob Cutting tip and tool equipped with such tips

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EP1833647A1 (en) * 2005-01-07 2007-09-19 Iggesund Tools Ab Clamping assembly for woodworking knife
EP1833647A4 (en) * 2005-01-07 2012-01-11 Iggesund Tools Ab Clamping assembly for woodworking knife
FR2899509A1 (en) * 2006-04-11 2007-10-12 Outil Elbe Sa Removable cut plate fixation device for machining of wood, has screw, socket and wedge to assure clamping force perpendicular to supporting surface of plate that presents retention arrangement cooperating with complementary arrangement
CH709488A1 (en) * 2014-04-14 2015-10-15 Oertli Werkzeuge Ag Tool head and method for inserting and clamping a cutting board and cutting board.
WO2015157871A3 (en) * 2014-04-14 2015-12-03 Oertli Werkzeuge Ag Tool head and method for inserting and clamping a cutting insert, and cutting insert
US11298851B2 (en) 2014-04-14 2022-04-12 Oertli Werkzeuge Ag Tool head and method for inserting and clamping a cutting insert, and cutting insert

Also Published As

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DE19818625A1 (en) 1999-10-28
DE59900367D1 (en) 2001-12-06
EP0951974B1 (en) 2001-10-31
ATE207793T1 (en) 2001-11-15
ES2167108T3 (en) 2002-05-01

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