WO1987002297A1 - Head for circular saw - Google Patents

Head for circular saw Download PDF

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Publication number
WO1987002297A1
WO1987002297A1 PCT/EP1986/000590 EP8600590W WO8702297A1 WO 1987002297 A1 WO1987002297 A1 WO 1987002297A1 EP 8600590 W EP8600590 W EP 8600590W WO 8702297 A1 WO8702297 A1 WO 8702297A1
Authority
WO
WIPO (PCT)
Prior art keywords
circular saw
saw blade
milling cutter
cutter
cage
Prior art date
Application number
PCT/EP1986/000590
Other languages
German (de)
French (fr)
Inventor
Alfred Reuter
Original Assignee
Gebrüder Linck Maschinenfabrik "Gatterlinck" Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gebrüder Linck Maschinenfabrik "Gatterlinck" Gmbh filed Critical Gebrüder Linck Maschinenfabrik "Gatterlinck" Gmbh
Priority to DE8686906310T priority Critical patent/DE3676827D1/en
Priority to AT86906310T priority patent/ATE59802T1/en
Publication of WO1987002297A1 publication Critical patent/WO1987002297A1/en
Priority to FI881402A priority patent/FI85667C/en

Links

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
    • B27B5/34—Devices for securing a plurality of circular saw blades on a single saw spindle; Equipment for adjusting the mutual distance
    • 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
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/20—Edge trimming saw blades or tools combined with means to disintegrate waste

Definitions

  • the invention relates to a circular saw head for sawing off the side products of tree trunks with an inner circular saw blade and an outer circular saw blade arranged at a distance from it, each of which is assigned a milling cutter with milling cutters arranged on the circumference on the side facing away from the tree trunk.
  • planks, beams, squared timber and the like. can be made from the resulting side panels by saw cuts from the
  • the clamping ring protrudes into the area of the previously milled edge.
  • each circular saw blade is provided with a thickened flange which is attached to the ends of tubes which can be displaced telescopically relative to one another. The problem does not arise here to place a milling cutter between adjacent circular saw blades.
  • Like milling cutter is arranged axially adjustable and protrudes through a central opening of the inner circular saw blade.
  • the inner cutter which carries the outer circular saw blade, is extended axially out of the cage-like cutter until the desired distance between the circular saw blades is reached.
  • This inner milling cutter is engaged over the entire width of the side board to be sawn off. The difference in diameter of the two milling cutters is small, the fastening screws of the circular saw blade lying on a relatively large diameter.
  • the cage-type milling cutter is preferably provided with openings in the area of the milling cutter edges of the inner milling cutter, through which penetrated chips can emerge. This prevents the interior from clogging.
  • FIG. 1 shows a simplified longitudinal section of a circular saw head with two axially adjustable circular saw blades
  • FIG. 2 shows an enlarged section along the line II-II in FIG. 1
  • FIG. 3 shows an enlarged section along the line III-III in FIG 1
  • FIG. 4 the arrangement of two opposite pairs of circular saw heads when processing a tree trunk in a vertical section.
  • the circular saw head shown in FIGS. 1-3 has an inner circular saw blade 1 which is screwed on the end face to a cage-shaped milling cutter 2.
  • the milling cutter 2 is connected to a saw shaft 3 designed as a hollow shaft, which is rotatably mounted in a machine frame 4, which is only indicated in FIG. 1.
  • the saw shaft 3 is reasonable only schematically a 'indicated belt drive 5 by a drive motor 6 driven ange ⁇ .
  • An outer circular saw blade 7 is arranged axially at a distance from the inner circular saw blade 1 and is screwed on the end face to an inner milling cutter 8.
  • the inner milling cutter 8 is arranged axially adjustable in the interior of the cage-like milling cutter 2 and projects outwards through a central opening 9 of the inner circular saw blade 1.
  • the inner milling cutter 8 is connected to an inner saw shaft 10 which is guided axially displaceably in the saw shaft 3.
  • a feather key 11 is used to transmit the rotational movement from the hollow shaft 3 to the inner saw shaft 10.
  • An adjusting drive 12 which is indicated schematically in FIG. 1 as a pressure medium cylinder, engages on the inner saw shaft 10 and enables axial displacement. Exercise in which the outer saw blade 7 assumes, for example, the position 7 'indicated by dash-dotted lines. Here, the distance to the inner circular saw blade 1 changes.
  • both the inner milling cutter 8 and the cage-type milling cutter 2 with three milling cutters 16 and 17 arranged on the circumference.
  • each outer cutter edge 17 there is a chip space 18 assigned to it, in front of which the adjacent opening 15 is arranged.
  • the cutters 16 of the inner cutter 8, which are each arranged below the opening 15, are thus on a diameter which is only slightly smaller than the diameter on which the outer cutter edges 17 lie.
  • the clamping screws 19, with which the inner circular saw blade 1 is attached to the end face of the milling cutter 2 are distributed around the circumference of the milling cutter 2 such that they are respectively under the milling cutter edges 17 or between the chip space 18 and the adjacent opening 15 run.
  • the cage-like milling cutter 2 can be made relatively thin-walled.
  • the circular saw heads described are used, arranged in pairs one above the other, to saw off the side goods of a tree trunk 23 consisting of side boards 20 and rind boards 21.
  • the described change in the axial distance between the inner circular saw blade 1 and the outer circular saw blade 7 sets the desired thickness of the side board 20.
  • the cutters 2 and 8, which each carry the circular saw blade 1 or 7 and form its hub, mill off the side edges of the side boards 20 and the rind boards 21 during the sawing process. It is thereby achieved that there is no risk that the side goods collide with the hubs of the saw blades 1 or 7. In particular at the ends of the roots and / or in the event of a greater curvature of the stems, there is no risk of tarnishing the hubs.
  • the circular saw blades 1 and 7 can also be composed of segments. As shown in FIG. 3 using the example of the inner circular saw blade 1, perforations 24 are provided in the area of the adjacent cutter blades 17 in the circular saw blade 1, into which the cutter blades 17 protrude. This prevents chips from jamming between the cutter edge 17 and the circular saw blade 1.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Milling Processes (AREA)

Abstract

Head for circular saw for cutting lateral pieces from tree trunkscomprising an internal circular saw blade (1) and an external circular saw blade (7) arranged at a certain distance from the latter. The inner circular saw blade (1) is fitted by its front hand to a cage-type cutter (2). The external blade (7) is fitted by its front hand to an inner cutter (8) which can move axially inside the cage-type cutter (2), so that the distance between the blades (1, 7) can be changed. The cutters (2, 8) cut the longitudinal edges of the lateral pieces which are sawn by the circular saw blade (1, 7) from a tree trunk.

Description

KreissägekopfCircular saw head
Die Erfindung betrifft einen Kreissägekopf zum Absägen der Seitenware von Baumstämmen mit einem inneren Kreis¬ sägeblatt und einem dazu im Abstand angeordneten, äußeren Kreissägeblatt, denen jeweils auf der dem Baumstamm abge- kehrten Seite ein Fräser mit am Umfang angeordneten Fräser¬ schneiden zugeordnet ist.The invention relates to a circular saw head for sawing off the side products of tree trunks with an inner circular saw blade and an outer circular saw blade arranged at a distance from it, each of which is assigned a milling cutter with milling cutters arranged on the circumference on the side facing away from the tree trunk.
Bei der Verarbeitung von Holzstammen zu Brettern, Bohlen, Balken, Kanthölzern u.dgl. können aus der anfallenden Seitenware Seitenbretter durch Sägeschnitte von derWhen processing logs into boards, planks, beams, squared timber and the like. can be made from the resulting side panels by saw cuts from the
Hauptware- abgetrennt werden. Sofern der Holzstamm nicht durch einen Profilzerspanungsvorgang beidseitig ange¬ flacht wurde, fallen beim Absägen der Seitenbretter noch Schwartenbretter an.Main goods - to be separated. If the log has not been flattened on both sides by a profile cutting process, rind boards are still produced when the side boards are sawn off.
Um einen nachträglichen Besäumvorgang der Seitenbretter zu vermeiden, ist es bekannt, vor dem Sägen die neben den Seitenbrettern liegenden Waldkanten rechtwinklig her- auszufräsen, nachdem der Holzstamm seitlich angeflacht wurde. Bei einem hierfür verwendeten bekannten Kreissäge¬ kopf (DE-B-31 21 130) ist das außenliegende Kreissäge- blatt gegen einen Spannring mittels Spannschrauben ge- spannt, die durch Bohrungen im Spannring ragen und der Befestigung an einem Tragflansch dienen. Während desIn order to avoid subsequent trimming of the side boards, it is known to mill out the forest edges lying next to the side boards at right angles before sawing, after the log has been flattened on the side. In a known circular saw head used for this purpose (DE-B-31 21 130), the external circular saw The blade is clamped against a clamping ring by means of clamping screws that protrude through holes in the clamping ring and are used for fastening to a supporting flange. During the
Sägevorgangs ragt der Spannring in den Bereich der vorher 5 ausgefrästen Kante.Sawing process, the clamping ring protrudes into the area of the previously milled edge.
Es ist bekannt, auf einer gemeinsamen Sägewelle mehrere Kreissägeblätter axial verstellbar anzuordnen (US-A- 3 630 24 Hierbei ist jedes Kreissägeblatt mit einem verdickten Flansch versehen, die an den Enden von teleskopartig gegeneinander ° verschiebbaren Rohren angebracht sind. Hierbei stellt sich das Problem nicht, zwischen benachbarten Kreissägeblättern einen Fräser anzuordnen.It is known to arrange several circular saw blades axially adjustably on a common saw shaft (US-A-3 630 24). Here, each circular saw blade is provided with a thickened flange which is attached to the ends of tubes which can be displaced telescopically relative to one another. The problem does not arise here to place a milling cutter between adjacent circular saw blades.
Aufgabe der Erfindung ist es daher, einen Kreissägekopf '5 der eingangs genannten Gattung zu schaffen, der eine axiale Verstellung des Abstandes der beiden Kreissägeblätter er¬ möglicht, wobei zugleich die Längskanten der Seitenware bearbeitet werden.It is therefore an object of the invention to provide a circular saw head 5 of the type mentioned at the outset which enables the distance between the two circular saw blades to be adjusted axially, the longitudinal edges of the side goods being machined at the same time.
20 Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß der dem inneren Kreissägeblatt zugeordnete Fräser als Käfig ausgeführt ist, der an seiner Stirnseite das innere Kreissägeblatt trägt, und daß der stirnseitig das äußere Kreissägeblatt tragende innere Fräser im Inneren des käfig- 20 This object is achieved in that the cutter associated with the inner circular saw blade is designed as a cage which carries the inner circular saw blade on its end face, and in that the inner cutter carrying the outer circular saw blade on the end face inside the cage
artigen Fräsers axial verstellbar angeordnet ist und durch eine zentrische Öffnung des inneren Kreissägeblattes ragt.Like milling cutter is arranged axially adjustable and protrudes through a central opening of the inner circular saw blade.
Bei einer Abstandsveränderung der beiden Kreissägeblätter, d.h. wenn die Dicke des abzusägenden Seitenbrettes geän¬ dert werden soll, wird der innere Fräser, der das äußere Kreissägeblatt trägt, aus dem käfigartigen Fräser axial so weit ausgefahren, bis der gewünschte Abstand der Kreis¬ sägeblätter erreicht ist. Dieser innere Fräser ist jeweils über die gesamte Breite des abzusägenden Seitenbrettes im Eingriff. Die Durchmesserdifferenz der beiden Fräser ist gering, wobei die Befestigungsschrauben des Kreissägeblattes auf einem verhältnismäßig großen Durchmesser liegen.If the distance between the two circular saw blades changes, i.e. If the thickness of the side board to be sawn off is to be changed, the inner cutter, which carries the outer circular saw blade, is extended axially out of the cage-like cutter until the desired distance between the circular saw blades is reached. This inner milling cutter is engaged over the entire width of the side board to be sawn off. The difference in diameter of the two milling cutters is small, the fastening screws of the circular saw blade lying on a relatively large diameter.
Vorzugsweise ist der käfigartige Fräser jeweils im Bereich der Fräserschneiden des inneren Fräsers mit Durchbrechungen versehen, durch die eingedrungene Späne austreten können. Dadurch wird ein Verstopfen des Innenraums verhindert.The cage-type milling cutter is preferably provided with openings in the area of the milling cutter edges of the inner milling cutter, through which penetrated chips can emerge. This prevents the interior from clogging.
Weitere vorteilhafte Ausgestaltungen des Erfindungsge¬ dankens sind Gegenstand weiterer Unteransprüche.Further advantageous embodiments of the inventive concept are the subject of further subclaims.
Die Erfindung wird nachfolgend an einem Ausführungsbeispiel näher erläutert, das in der Zeichnung dargestellt ist. Es zeigt:The invention is explained in more detail below using an exemplary embodiment which is illustrated in the drawing. It shows:
Fig. 1 in einem vereinfachten Längsschnitt einen Kreis- Sägekopf mit zwei axial verstellbaren Kreissäge¬ blättern, Fig. 2 einen vergrößerten Schnitt längs der Linie II-II in Fig. 1 , Fig. 3 einen vergrößerten Schnitt längs der Linie III-III in Fig 1 und Fig. 4 die Anordnung von zwei gegenüberliegenden Paaren von Kreissägeköpfen bei der Bearbeitung eines Baum¬ stammes in einem senkrechten Schnitt. Der in den Fig. 1 - 3 dargestellte Kreissägekopf weist ein inneres Kreissägeblatt 1 auf, das stirnseitig an einem käfigartig gestalteten Fräser 2 angeschraubt ist. der Fräser 2 ist mit einer als Hohlwelle ausgeführten Sägewelle 3 verbunden, die in einem in Fig. 1 nur an¬ gedeuteten Maschinengestell 4 drehbar gelagert ist. Die Sägewelle 3 wird über einen nur schematisch ange-' deuteten Riementrieb 5 von einem Antriebsmotor 6 ange¬ trieben.1 shows a simplified longitudinal section of a circular saw head with two axially adjustable circular saw blades, FIG. 2 shows an enlarged section along the line II-II in FIG. 1, FIG. 3 shows an enlarged section along the line III-III in FIG 1 and FIG. 4 the arrangement of two opposite pairs of circular saw heads when processing a tree trunk in a vertical section. The circular saw head shown in FIGS. 1-3 has an inner circular saw blade 1 which is screwed on the end face to a cage-shaped milling cutter 2. the milling cutter 2 is connected to a saw shaft 3 designed as a hollow shaft, which is rotatably mounted in a machine frame 4, which is only indicated in FIG. 1. The saw shaft 3 is reasonable only schematically a 'indicated belt drive 5 by a drive motor 6 driven ange¬.
Axial im Abstand zu dem Inneren Kreissägeblatt 1 ist ein äußeres Kreissägeblatt 7 angeordnet, das stirnseitig an einem inneren Fräser 8 angeschraubt ist. Der innere Fräser 8 ist im Inneren des käfigartigen Fräsers 2 axial verstell- bar angeordnet und ragt durch eine zentrische öffung 9 des inneren Kreissägeblattes 1 nach außen.An outer circular saw blade 7 is arranged axially at a distance from the inner circular saw blade 1 and is screwed on the end face to an inner milling cutter 8. The inner milling cutter 8 is arranged axially adjustable in the interior of the cage-like milling cutter 2 and projects outwards through a central opening 9 of the inner circular saw blade 1.
Der innere Fräser 8 ist mit einer inneren Sägewelle 10 ver¬ bunden, die in der Sägewelle 3 axial verschiebbar geführt ist. Eine Paßfeder 11 dient zur Übertragung der Drehbe¬ wegung von der Hohlwelle 3 auf die innere Sägewelle 10. Ein Versteilantrieb 12, der in Fig. 1 schematisch als Druckmittelzylinder angedeutet ist, greift an der inne¬ ren Sägewelle 10 an und ermöglicht eine axiale Verschie- bung, bei der das äußere Sägeblatt 7 beispielsweise die mit strichpunktierten Linien angedeutete Stellung 7' ein¬ nimmt. Hierbei ändert sich der Abstand zum inneren Kreis¬ sägeblatt 1.The inner milling cutter 8 is connected to an inner saw shaft 10 which is guided axially displaceably in the saw shaft 3. A feather key 11 is used to transmit the rotational movement from the hollow shaft 3 to the inner saw shaft 10. An adjusting drive 12, which is indicated schematically in FIG. 1 as a pressure medium cylinder, engages on the inner saw shaft 10 and enables axial displacement. Exercise in which the outer saw blade 7 assumes, for example, the position 7 'indicated by dash-dotted lines. Here, the distance to the inner circular saw blade 1 changes.
Aus den Fig. 2 und 3 erkennt man, daß der innere Hohlraum 13 im käfigartigen Fräser 2 und insbesondere die zentrische Öffnung 9 bis auf einen verbleibenden Umfangsspalt 14 weit¬ gehend der Kontur des inneren Fräsers 8 angepaßt sind. Da¬ durch wird das Eindringen von Spänen in den Hohlraum 13 weitgehend verhindert. Diejenigen Späne, die trotzdem in den Hohlraum 13 gelangen, treten durch radiale Durch¬ brechungen 15 des käfigartigen Fräsers 2 aus, die sich jeweils im Bereich der Fräserschneiden 16 des inneren Fräsers 8 befinden. Die Durchbrechungen 15 liegen je¬ weils zwischen benachbarten Fräserschneiden 17 am Um¬ fang des käfigartigen Fräsers 2.From FIGS. 2 and 3 it can be seen that the inner cavity 13 in the cage-like milling cutter 2 and in particular the central opening 9 are largely adapted to the contour of the inner milling cutter 8 except for a remaining circumferential gap 14. As a result, the penetration of chips into the cavity 13 largely prevented. Those chips which nevertheless get into the cavity 13 exit through radial openings 15 of the cage-like milling cutter 2, which are each located in the area of the milling cutter edges 16 of the inner milling cutter 8. The openings 15 lie between adjacent cutter edges 17 on the circumference of the cage-like cutter 2.
Als besonders zweckmäßig hat es sich erwiesen, sowohl den inneren Fräser 8, als auch den käfigartigen Fräser 2 jeweils mit drei am Umfang angeordneten Fräserschneiden 16 bzw. 17 zu versehen. Vor jeder äußeren Fräserschneide 17 liegt jeweils ein ihr zugeordneter Spanraum 18, vor dem die benachbarte Durchbrechung 15 angeordnet ist. Die Fräser schneiden 16 des inneren Fräsers 8, die jeweils unter der Durchbrechung 15 angeordnet sind, liegen somit auf einem Durchmesser, der nur wenig kleiner ist als der Durchmesser, auf dem die äußeren Fräserschneiden 17 liegen. Die Spann¬ schrauben 19, mit denen das innere Kreissägeblatt 1 am Fräser 2 stirnseitig befestigt ist, sind am Umfang des Fräsers 2 so verteilt, daß sie jeweils unter den Fräser¬ schneiden 17 bzw. zwischen dem Spanraum 18 und der benach¬ barten Durchbrechung 15 verlaufen. In den übrigen Bereichen kann der käfigartige Fräser 2 verhältnismäßig dünnwandig ausgeführt werden.It has proven to be particularly expedient to provide both the inner milling cutter 8 and the cage-type milling cutter 2 with three milling cutters 16 and 17 arranged on the circumference. In front of each outer cutter edge 17 there is a chip space 18 assigned to it, in front of which the adjacent opening 15 is arranged. The cutters 16 of the inner cutter 8, which are each arranged below the opening 15, are thus on a diameter which is only slightly smaller than the diameter on which the outer cutter edges 17 lie. The clamping screws 19, with which the inner circular saw blade 1 is attached to the end face of the milling cutter 2, are distributed around the circumference of the milling cutter 2 such that they are respectively under the milling cutter edges 17 or between the chip space 18 and the adjacent opening 15 run. In the remaining areas, the cage-like milling cutter 2 can be made relatively thin-walled.
Wie in Fig. 4 dargestellt ist, dienen die beschriebenen Kreissägeköpfe dazu, jeweils paarweise übereinander ange¬ ordnet, die aus Seitenbrettern 20 und Schwartenbrettern 21 bestehende Seitenware eines Baumstammes 23 abzusägen. Durch die beschriebene Änderung des axialen Abständes zwischen de inneren Kreissägeblatt 1 und dem äußeren Kreissägeblatt 7 wird die gewünschte Dicke des Seitenbrettes 20 eingestellt. Die Fräser 2 und 8, die jeweils das Kreissägeblatt 1 bzw. 7 tragen und dessen Nabe bilden, fräsen beim Säge¬ vorgang die Seitenkanten der Seitenbretter 20 und der Schwartenbretter 21 ab. Dadurch wird erreicht, daß keine Gefahr besteht, daß die Seitenware mit den Naben der Säge¬ blätter 1 bzw. 7 kollidieren. Insbesondere an den Wurzel¬ enden und/oder bei stärkerer Krümmung der Stämme besteht keine Gefahr des Anlaufens an die Naben.As shown in FIG. 4, the circular saw heads described are used, arranged in pairs one above the other, to saw off the side goods of a tree trunk 23 consisting of side boards 20 and rind boards 21. The described change in the axial distance between the inner circular saw blade 1 and the outer circular saw blade 7 sets the desired thickness of the side board 20. The cutters 2 and 8, which each carry the circular saw blade 1 or 7 and form its hub, mill off the side edges of the side boards 20 and the rind boards 21 during the sawing process. It is thereby achieved that there is no risk that the side goods collide with the hubs of the saw blades 1 or 7. In particular at the ends of the roots and / or in the event of a greater curvature of the stems, there is no risk of tarnishing the hubs.
Anstelle der dargestellten einstückigen Ausführung können die Kreissägeblätter 1 und 7 auch aus Segmenten zusammen¬ gesetzt sein. Wie in Fig. 3 am Beispiel des inneren Kreis¬ sägeblattes 1 dargestellt, sind jeweils im Bereich der an¬ grenzenden Fräserschneiden 17 Durchbrechungen 24 im Kreis- Sägeblatt 1 vorgesehen, in die die Fräserschneiden 17 hineinragen. Dadurch wird verhinder, daß sich Späne zwi¬ schen der Fräserschneide 17 und dem Kreissägeblatt 1 fest¬ klemmen können. Instead of the one-piece design shown, the circular saw blades 1 and 7 can also be composed of segments. As shown in FIG. 3 using the example of the inner circular saw blade 1, perforations 24 are provided in the area of the adjacent cutter blades 17 in the circular saw blade 1, into which the cutter blades 17 protrude. This prevents chips from jamming between the cutter edge 17 and the circular saw blade 1.

Claims

KreissägeköpfP a t e n t a n s p r ü c h e Circular saw heads
1. Kreissägekopf zum Absägen der Seitenware von Baum¬ stämmen mit einem inneren Kreissägeblatt und einem dazu im Abstand angeordneten, äußeren Kreissägeblatt, denen jeweils auf der dem Baumstamm abgekehrten Seite ein Fräser mit am Umfang angeordneten Fräserschneiden zugeordnet ist, dadurch gekennzeichnet, daß der dem inneren Kreissägeblatt (1) zugeordnete Fräser (2) als Käfig ausgeführt ist, der an seiner Stirnseite das in¬ nere Kreissägeblatt (1) trägt, und daß der stirnseitig das äußere Kreissägeblatt (7) tragende innere Fräser (8) im Inneren des käfigartigen Fräsers (2) axial verstell¬ bar angeordnet ist und durch eine zentrische öffung (9) des inneren Kreissägeblattes (1) ragt.1. Circular saw head for sawing off the side goods from tree trunks with an inner circular saw blade and an outer circular saw blade arranged at a distance from it, each of which on the side facing away from the tree trunk is assigned a milling cutter with milling cutters arranged on the circumference, characterized in that the inner Milling cutter (2) assigned to the circular saw blade (1) is designed as a cage, which carries the inner circular saw blade (1) on its end face, and that the inner milling cutter (8) carrying the outer circular saw blade (7) on the face inside the cage-like milling cutter ( 2) is arranged axially adjustable and protrudes through a central opening (9) of the inner circular saw blade (1).
2. Kreissägekopf nach Anspruch 1, dadurch gekennzeichnet, daß die Sägewelle (3) als Hohlwelle ausgeführt ist, ' in der eine innere Sägewelle (10) axial verschiebbar geführt ist, die den inneren Fräser (8) trägt. 2. Circular saw head according to claim 1, characterized in that the saw shaft (3) is designed as a hollow shaft, 'in which an inner saw shaft (10) is guided axially displaceably, which carries the inner cutter (8).
3. Kreissägekopf nach Anspruch 1, dadurch gekennzeichnet, daß der käfigartige Fräser (2) jeweils im Bereich der Fräserschneiden (16) des inneren Fräsers (8) Durch¬ brechungen (15) aufweist.3. Circular saw head according to claim 1, characterized in that the cage-like milling cutter (2) has openings (15) in the area of the milling cutter edges (16) of the inner milling cutter (8).
4. Kreissägekopf nach Anspruch 3, dadurch gekennzeichnet, daß die Durchbrechungen (15) jeweils zwischen benach¬ barten Fräserschneiden (17) des käfigartigen Fräsers (2) liegen.4. Circular saw head according to claim 3, characterized in that the openings (15) each lie between neighboring burrs (17) of the cage-like cutter (2).
5. Kreissägekopf nach Anspruch 1, dadurch gekennzeichnet, daß die zentrische Öffnung (9) des inneren Kreissäge¬ blattes (1) bis auf einen verbleibenden Umfangsspalt (14) der Kontur des inneren Fräsers (8) angepaßt ist. 5. Circular saw head according to claim 1, characterized in that the central opening (9) of the inner Kreissäge¬ blade (1) is adapted to a remaining peripheral gap (14) of the contour of the inner cutter (8).
PCT/EP1986/000590 1985-10-17 1986-10-15 Head for circular saw WO1987002297A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE8686906310T DE3676827D1 (en) 1985-10-17 1986-10-15 CIRCULAR SAW HEAD.
AT86906310T ATE59802T1 (en) 1985-10-17 1986-10-15 CIRCULAR SAW HEAD.
FI881402A FI85667C (en) 1985-10-17 1988-03-24 CIRKELSAOGHUVUD.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853536983 DE3536983A1 (en) 1985-10-17 1985-10-17 CIRCULAR SAW HEAD
DEP3536983.3 1985-10-17

Publications (1)

Publication Number Publication Date
WO1987002297A1 true WO1987002297A1 (en) 1987-04-23

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ID=6283788

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1986/000590 WO1987002297A1 (en) 1985-10-17 1986-10-15 Head for circular saw

Country Status (4)

Country Link
EP (1) EP0273914B1 (en)
DE (2) DE3536983A1 (en)
FI (1) FI85667C (en)
WO (1) WO1987002297A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU584836B2 (en) * 1987-09-24 1989-06-01 Giben Impianti S.P.A. Method and apparatus for the cutting of panels or packs of panels by the use of a single disc-saw
WO1991008875A1 (en) * 1989-12-20 1991-06-27 Kauko Rautio Circular saw blade assembly
DE29508355U1 (en) * 1995-05-24 1996-09-26 Linck Masch Gatterlinck Device for cutting logs into wood products and milling head for such a device
DE19547193A1 (en) * 1995-12-16 1997-06-19 Linck Masch Gatterlinck Method and device for cutting a tree trunk
EP0813939A1 (en) * 1996-06-20 1997-12-29 Otto Martin Maschinenbau GmbH & Co. Scoring tool
EP1396318A2 (en) * 2002-09-06 2004-03-10 Key Knife, Inc. Adjustable saws for wood cutting

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FI81289C (en) * 1988-05-10 1990-10-10 Kauko Rautio sawing machine
DE4014053C2 (en) * 1990-05-02 1994-01-20 Esterer Ag Maschf Double-shaft circular saw machine
DE4407379C2 (en) * 1994-03-05 1999-08-19 Esterer Ag Maschf Sawing machine
DE19955590A1 (en) * 1999-11-18 2001-07-19 Schmidt Fritz Stihl Dienst Mot Sawing machine esp. circular sawing machine, with independently adjustable saw shaft units consists of two machine units with max. saw shaft units, and drive motor driving max. two shafts
US6637483B2 (en) 2000-06-08 2003-10-28 Key Knife, Inc. Method and apparatus for profiling a log
US6688351B2 (en) 2002-02-20 2004-02-10 Key Knife, Inc. Adjustable profiling head for a wood cutting apparatus
US6712105B1 (en) 2002-09-26 2004-03-30 Key Knife, Inc. Method and apparatus for planing an article of wood
DE202011101445U1 (en) * 2011-05-27 2012-08-28 Wilhelm Altendorf Gmbh & Co. Kg Swiveling scoring unit on both sides

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US4456045A (en) * 1983-01-13 1984-06-26 Gregoire James L Dual rotation chipping head

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU584836B2 (en) * 1987-09-24 1989-06-01 Giben Impianti S.P.A. Method and apparatus for the cutting of panels or packs of panels by the use of a single disc-saw
WO1991008875A1 (en) * 1989-12-20 1991-06-27 Kauko Rautio Circular saw blade assembly
US5279344A (en) * 1989-12-20 1994-01-18 Kauko Rautio Circular saw blade assembly
AU646830B2 (en) * 1989-12-20 1994-03-10 Kauko Rautio Circular saw blade assembly
EP0744255A3 (en) * 1995-05-24 1998-02-25 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG Device for cutting up logs and milling head for such a device
EP0744255A2 (en) * 1995-05-24 1996-11-27 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co.KG Device for cutting up logs and milling head for such a device
DE29508355U1 (en) * 1995-05-24 1996-09-26 Linck Masch Gatterlinck Device for cutting logs into wood products and milling head for such a device
DE19547193A1 (en) * 1995-12-16 1997-06-19 Linck Masch Gatterlinck Method and device for cutting a tree trunk
EP0785051A1 (en) * 1995-12-16 1997-07-23 GEBRÜDER LINCK MASCHINENFABRIK "GATTERLINCK" GmbH & Co.KG Method and device for cutting logs
DE19547193C2 (en) * 1995-12-16 1999-01-28 Linck Masch Gatterlinck Method and device for cutting a tree trunk
EP0813939A1 (en) * 1996-06-20 1997-12-29 Otto Martin Maschinenbau GmbH & Co. Scoring tool
EP1396318A2 (en) * 2002-09-06 2004-03-10 Key Knife, Inc. Adjustable saws for wood cutting
EP1396318A3 (en) * 2002-09-06 2005-06-01 Key Knife, Inc. Adjustable saws for wood cutting
US7219706B2 (en) 2002-09-06 2007-05-22 Key Knife, Inc. Apparatus having adjustable saws for wood cutting

Also Published As

Publication number Publication date
FI881402A (en) 1988-03-24
FI85667C (en) 1992-05-25
FI881402A0 (en) 1988-03-24
EP0273914B1 (en) 1991-01-09
EP0273914A1 (en) 1988-07-13
DE3676827D1 (en) 1991-02-14
FI85667B (en) 1992-02-14
DE3536983A1 (en) 1987-04-23

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