EP1280627A1 - Circular-saw blade comprising expansion slits extending radially inwards - Google Patents

Circular-saw blade comprising expansion slits extending radially inwards

Info

Publication number
EP1280627A1
EP1280627A1 EP02737838A EP02737838A EP1280627A1 EP 1280627 A1 EP1280627 A1 EP 1280627A1 EP 02737838 A EP02737838 A EP 02737838A EP 02737838 A EP02737838 A EP 02737838A EP 1280627 A1 EP1280627 A1 EP 1280627A1
Authority
EP
European Patent Office
Prior art keywords
saw blade
circular saw
chip space
expansion slots
diameter
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
Application number
EP02737838A
Other languages
German (de)
French (fr)
Other versions
EP1280627B1 (en
Inventor
Herbert Humenberger
Richard Patsch
Zeljko Pekec
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leitz GmbH and Co KG
Original Assignee
Leitz GmbH and Co KG
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 Leitz GmbH and Co KG filed Critical Leitz GmbH and Co KG
Priority to DK02737838T priority Critical patent/DK1280627T3/en
Publication of EP1280627A1 publication Critical patent/EP1280627A1/en
Application granted granted Critical
Publication of EP1280627B1 publication Critical patent/EP1280627B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/04—Circular saw blades with inserted saw teeth the teeth being individually inserted
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00—Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02—Circular saw blades
    • B23D61/025—Details of saw blade body
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9319—Toothed blade or tooth therefor

Definitions

  • the invention relates to a circular saw blade, consisting of a support body and a plurality of inserted in the support body distributed over the circumference, a front rake face and a rear contact surface and a cutting edge forming a cutting circle diameter F having cutting plates, with a chip space formed in front of each cutting plate and a plurality of Expansion slots arranged around the circumference and extending radially inwards, which are essentially triangular
  • Such a circular saw blade is known for example from DE 92 16 744 U.
  • the expansion slots are used to absorb thermal expansion and
  • the triangular final configuration has the task of converting the vibrational energy into heat through friction.
  • Circular sawing machines are known in which the saw blades are firmly clamped between the flanges on the shaft, and those in which the saw blades are loosely placed on a spline or polygon shaft and are guided on the supporting body between fixed and flowing guides (master blade guides).
  • the saw blades are both clamped between flanges and additionally guided on the support body.
  • the invention has for its object to develop the circular saw blade described above so that it has a stable vibration behavior has when it is used in circular sawing machines in which it is both clamped between flanges and guided in the outer region of the support body.
  • a generic saw blade is characterized by the following features:
  • the flight circle diameter is a maximum of 2 mm larger than the diameter of the supporting body
  • the smallest chip space diameter of each chip space is a maximum of 13 mm smaller than the flight circle diameter
  • This configuration forms a geometrical shape which provides the required internal stresses in the supporting body for the multiple clamping of the tool.
  • the natural frequency of the saw blade achieved by these measures leads to quieter running behavior.
  • the gear rim is very closed due to the small chip space diameter and the small difference between the flight circle diameter and the support body diameter creates a circular chip thickness limiter in a shape that results in a maximum chip thickness of less than 1 mm.
  • This chip thickness limitation ensures that the saw is extremely stable during operation, especially with knotty and cracked woods.
  • the conical arrangement of the rake face and the contact face results in a positive change in the minor cutting edge geometry. In addition to the quieter operating behavior, especially of fast-running circular saw blades, the cutting quality is also increased.
  • the angle of inclination between the rake face and the contact face of the cutting plates is preferably in the range from 1 ° to 7 °.
  • the width of the expansion slots is preferably 0.3 mm.
  • the expansion slots can be filled with a permanently elastic material in order to avoid impairing the guiding properties in the outer region of the support body.
  • the support body can be provided with a surface coating. This ensures the cleanliness of the management level as well as increased cutting quality and tool life.
  • Figure 1 the view of a circular saw blade
  • the circular saw blade consists of the supporting body 1 and the cutting plates 2 which are soldered or glued into the supporting body 1 and which form the saw teeth.
  • a chip space 3 is introduced in front of each insert 2.
  • In the middle of the supporting body 1 there is a bore 7 for plugging onto the shaft of a circular saw machine, which is not shown here.
  • an expansion slot 4 arises at the deepest point (smallest chip space diameter), which is initially guided radially inwards in a straight region 6 and at the end merges into a triangular end configuration 5.
  • the geometric center of the triangular region 5 forms the center Z.
  • the distance L of the expansion slot 4 from its origin to the center is a maximum of 17 mm.
  • the flight circle diameter F of the cutting edge formed on the cutting plate 2 is, as shown in FIG. 3, a maximum of 2 mm larger than the diameter T of the supporting body 1. This results in a maximum chip thickness of maximum 1 mm on the workpiece
  • the smallest chip space diameter S of each chip space 3 is a maximum of 1 3 mm smaller than the flight circle diameter F.
  • the rake face 2a of the insert 2 extends at an angle of 1 ° to 7 ° with respect to the contact surface 2b with which the insert 2 rests in the support body ⁇ .
  • the circular saw blade is provided with a surface coating.
  • the expansion slot 4 is designed to be wider than in the region 5 which runs in a triangular shape.
  • the expansion slot 4 can be filled with a permanently elastic mass, which can provide improved guidance.
  • the guiding device formed in the sawing machine is usually operated by compressed air. An air cushion is therefore built up for guiding the supporting body 1. Closed expansion slots reduce the air required for guidance.

Abstract

A circular saw blade, consisting of a supporting body (1) and a plurality of cutting tips (2) which are inserted into the supporting body (1) such as to be distributed over the circumference and have a front rake face (2a) and a rear bearing face (2b) and also a cutting edge forming a pitch circle diameter (F), having a chip space (3) formed in front of each cutting tip (2) and a plurality of expansion slots (4) which are arranged such as to be distributed over the circumference, extend radially inward, have an essentially triangular terminal configuration (5) with a center (Z) lying inside the curve path and originate at the root of the chip space (3), is distinguished by the following features: a) the pitch circle diameter (F) is at most 2 mm larger than the diameter (T) of the supporting body (1); b) the distance (L) of the expansion slots (4) from their origin up to the center (Z) is at most 17 mm; c) the smallest chip space diameter (S) of each chip space (3) is at most 13 mm smaller than the pitch circle diameter (F); d) the rake face (2a) of the cutting tips (2) runs inclined relative to the bearing face (2b).

Description

Kreissägeblattcircular saw blade
Die Erfindung betrifft ein Kreissägeblatt, bestehend aus einem Tragkörper und einer Mehrzahl über den Umfang verteilt in den Tragkörper eingesetzter, eine vordere Spanfläche und eine rückseitige Anlagefläche sowie eine einen Flugkreisdurchmesser F bildende Schneidkante aufweisende Schneidplatten, mit einem vor jeder Schneidplatte ausgebildeten Spanraum und einer Mehrzahl von über den Umfang verteilt angeordneter, sich nach radial innen erstreckender Dehnungsschlitze, die eine im wesentlichen triangelförmigeThe invention relates to a circular saw blade, consisting of a support body and a plurality of inserted in the support body distributed over the circumference, a front rake face and a rear contact surface and a cutting edge forming a cutting circle diameter F having cutting plates, with a chip space formed in front of each cutting plate and a plurality of Expansion slots arranged around the circumference and extending radially inwards, which are essentially triangular
Abschlusskonfiguration mit einem innerhalb des Kurvenverlaufs liegenden Zentrum aufweisen und am Spanraumgrund entspringen.Have a final configuration with a center within the curve and arise at the bottom of the chip space.
Ein solches Kreissägeblatt ist beispielsweise aus der DE 92 16 744 U bekannt.Such a circular saw blade is known for example from DE 92 16 744 U.
Die Dehnungsschlitze dienen der Aufnahme von Wärmedehnungen und derThe expansion slots are used to absorb thermal expansion and
Unterbrechung von im Tragkörper auftretenden Schwinungen. Die triangelförmige Abschlusskunfiguration hat die Aufgabe, durch Reibung die Schwingungsenergie in Wärme umzuwandeln.Interruption of vibrations occurring in the supporting body. The triangular final configuration has the task of converting the vibrational energy into heat through friction.
Es sind Kreissägemaschinen bekannt, bei denen die Sägeblätter zwischen Flansche auf der Welle fest eingespannt werden, und solche, bei denen die Sägeblätter lose auf eine Keil- oder Polygonwelle aufgesetzt und am Tragkörper zwischen festen und fließenden Führungen (Stammblattführungen) geführt werden.Circular sawing machines are known in which the saw blades are firmly clamped between the flanges on the shaft, and those in which the saw blades are loosely placed on a spline or polygon shaft and are guided on the supporting body between fixed and flowing guides (master blade guides).
Insbesondere bei neueren Kreissägemaschinen werden die Sägeblätter aber sowohl zwischen Flansche eingespannt als auch zusätzlich am Tragkörper geführt.Especially with newer circular saws, the saw blades are both clamped between flanges and additionally guided on the support body.
Der Erfindung liegt die Aufgabe zugrunde, das eingangs beschrieben Kreissägeblatt so fortzubilden, dass es ein stabiles Schwingungsverhalten aufweist, wenn es in Kreissägemaschinen verwendet wird, in denen es sowohl zwischen Flanschen eingespannt als auch im äußeren Bereich des Tragkörpers geführt wird.The invention has for its object to develop the circular saw blade described above so that it has a stable vibration behavior has when it is used in circular sawing machines in which it is both clamped between flanges and guided in the outer region of the support body.
Zur Problemlösung zeichnet sich ein gattungsgemäßes Sägeblatt durch folgende Merkmale aus:To solve problems, a generic saw blade is characterized by the following features:
a) der Flugkreisdurchmesser ist maximal 2 mm größer als der Durchmesser des Tragkörpers;a) the flight circle diameter is a maximum of 2 mm larger than the diameter of the supporting body;
b) der Abstand der Dehnungsschlitze von ihrem Ursprung bis zum Zentrum beträgt maximal 17 mm;b) the distance of the expansion slots from their origin to the center is a maximum of 17 mm;
c) der kleinste Spanraumdurchmesser jedes Spanraumes ist maximal 13 mm kleiner als der Flugkreisdurchmesser undc) the smallest chip space diameter of each chip space is a maximum of 13 mm smaller than the flight circle diameter and
d) die Spanfläche der Schneidplatten verläuft gegenüber der Anlagefläche geneigt.d) the rake face of the cutting plates is inclined with respect to the contact face.
Durch diese Ausbildung wird eine geometrische Form gebildet, die für die mehrfache Einspannung des Werkzeuges die erforderliche Innenspannungen im Tragkörper liefert. Außerdem führt die durch diese Maßnahmen erzielte Eigenfrequenz des Sägeblattes zu einem ruhigeren Laufverhalten.This configuration forms a geometrical shape which provides the required internal stresses in the supporting body for the multiple clamping of the tool. In addition, the natural frequency of the saw blade achieved by these measures leads to quieter running behavior.
Der Zahnkranz ist durch die kleinen Spanraumdurchmesser sehr geschlossen und durch den geringen Unterschied zwischen Flugkreisdurchmesser und Tragkörperdurchmesser wird ein kreisrunder Spandickenbegrenzer in einer Form geschaffen, dass sich eine maximale Spandicke von weniger als 1 mm ergibt. Diese Spandickenbegrenzung sorgt insbesondere bei astreichen und rissigen Hölzern für eine höchste Stabilität der Säge im Betrieb. Durch die konische Anordnung von Spanfläche und Anlagefläche wird eine positive Veränderung der Nebenschneidengeometrie erreicht. Neben dem ruhigeren Betriebsverhalten insbesondere schnell laufender Kreissägeblätter wird zusätzlich die Schnittqualität erhöht.The gear rim is very closed due to the small chip space diameter and the small difference between the flight circle diameter and the support body diameter creates a circular chip thickness limiter in a shape that results in a maximum chip thickness of less than 1 mm. This chip thickness limitation ensures that the saw is extremely stable during operation, especially with knotty and cracked woods. The conical arrangement of the rake face and the contact face results in a positive change in the minor cutting edge geometry. In addition to the quieter operating behavior, especially of fast-running circular saw blades, the cutting quality is also increased.
Der Neigungswinkel zwischen Spanfläche und Anlagefläche der Schneidplatten liegt vorzugsweise im Bereich von 1 ° bis 7°.The angle of inclination between the rake face and the contact face of the cutting plates is preferably in the range from 1 ° to 7 °.
Die- Breite der Dehnungsschlitze beträgt vorzugsweise 0,3 mm. Die Dehnungsschlitze können mit einem dauerelastischen Material ausgefüllt sein, um eine Beeinträchtigung der Führungseigenschaften im äußeren Bereich des Tragkörpers zu vermeiden.The width of the expansion slots is preferably 0.3 mm. The expansion slots can be filled with a permanently elastic material in order to avoid impairing the guiding properties in the outer region of the support body.
Es hat sich überraschenderweise herausgestellt, dass ein weiter verbessertes Verhalten des Kreissägeblattes erreicht wird, wenn eine ungerade Anzahl von Schneidplatten eingesetzt wird und/oder die Dehnungsschlitze über den Umfang unregelmäßig im Tragkörper verteilt sind.It has surprisingly been found that a further improved behavior of the circular saw blade is achieved if an odd number of cutting inserts is used and / or the expansion slots are distributed irregularly over the circumference in the support body.
Zur Verhinderung von Harzansatz während des Betriebes kann der Tragkörper mit einer Oberflächenbeschichtung versehen sein. Dadurch wird die Sauberkeit der Führungsebene sowie eine erhöhte Schnittqualität und Werkzeuglebensdauer gewährleistet.To prevent resin buildup during operation, the support body can be provided with a surface coating. This ensures the cleanliness of the management level as well as increased cutting quality and tool life.
Es hat sich außerdem als sehr vorteilhaft herausgestellt, wenn die Dehnungsschlitze in ihrem gerade verlaufenden Bereich breiter ausgebildet sind als in dem triangelförmig verlaufenden Bereich. Mit Hilfe einer Zeichnung soll ein Ausführungsbeispiel der Erfindung nachfolgend näher beschrieben werden. Es zeigt:It has also proven to be very advantageous if the expansion slots are made wider in their straight-running area than in the triangular-shaped area. An embodiment of the invention will be described in more detail below with the aid of a drawing. It shows:
Figur 1 - die Ansicht eines Kreissägeblattes;Figure 1 - the view of a circular saw blade;
Figur 2 - einen vergrößerten Ausschnitt aus Figur 1 ;Figure 2 - an enlarged section of Figure 1;
Figur 3 - einen vergrößerten Ausschnitt aus Figur 2.Figure 3 - an enlarged section of Figure 2.
Das Kreissägeblatt besteht aus dem Tragkörper 1 und den in den Tragkörper 1 eingelöteten oder eingeklebten Schneidplatten 2, die die Sägezähne bilden. Vor jeder Schneidplatte 2 ist ein Spanraum 3 eingebracht. In der Mitte des Tragkörpers 1 ist eine Bohrung 7 zum Aufstecken auf die hier nicht näher dargestellte Welle einer Kreissägemaschine vorgesehen. In einigen Spanräumen 3 entspringt an der tiefsten Stelle (geringster Spanraumdurchmesser) ein Dehnungsschlitz 4, der zunächst in einem gerade verlaufenden Bereich 6 nach radial innen geführt ist und am Ende in eine triangelförmige Abschlusskonfiguration 5 übergeht. Die geometrische Mitte des triangelförmigen Bereichs 5 bildet das Zentrum Z. Der Abstand L des Dehnungsschlitzes 4 von seinem Ursprung bis zum Zentrum beträgt maximal 17 mm.The circular saw blade consists of the supporting body 1 and the cutting plates 2 which are soldered or glued into the supporting body 1 and which form the saw teeth. A chip space 3 is introduced in front of each insert 2. In the middle of the supporting body 1 there is a bore 7 for plugging onto the shaft of a circular saw machine, which is not shown here. In some chip spaces 3, an expansion slot 4 arises at the deepest point (smallest chip space diameter), which is initially guided radially inwards in a straight region 6 and at the end merges into a triangular end configuration 5. The geometric center of the triangular region 5 forms the center Z. The distance L of the expansion slot 4 from its origin to the center is a maximum of 17 mm.
Der Flugkreisdurchmesser F der an der Schneidplatte 2 ausgebildeten Schneide ist, wie Figur 3 zeigt, maximal 2 mm größer als der Durchmesser T des Tragkörpers 1 . Dadurch stellt sich am Werkstück eine maximale Spandicke von maximal 1 mmThe flight circle diameter F of the cutting edge formed on the cutting plate 2 is, as shown in FIG. 3, a maximum of 2 mm larger than the diameter T of the supporting body 1. This results in a maximum chip thickness of maximum 1 mm on the workpiece
(F/2 - T/2) ein. Durch den geringen Überstand ist der Spandickenbegrenzer kreisrund ausgebildet(F / 2 - T / 2) on. Due to the small overhang, the chip thickness limiter is circular
Der kleinste Spanraumdurchmesser S jedes Spanraumes 3 ist maximal 1 3 mm kleiner ausgebildet als der Flugkreisdurchmesser F. Die Spanfläche 2a der Schneidplatte 2 verläuft gegenüber der Anlagefläche 2b, mit der die Schneidplatte 2 im Tragkörper ϊ anliegt, im Winkel von 1 ° bis 7° geneigt. Zur Reduzierung von Harzansätzen auf dem Tragkörper 1 ist das Kreissägeblatt mit einer Oberflächenbeschichtung versehen.The smallest chip space diameter S of each chip space 3 is a maximum of 1 3 mm smaller than the flight circle diameter F. The rake face 2a of the insert 2 extends at an angle of 1 ° to 7 ° with respect to the contact surface 2b with which the insert 2 rests in the support body ϊ. To reduce resin deposits on the supporting body 1, the circular saw blade is provided with a surface coating.
In dem gerade verlaufenden Bereich 6 ist der Dehnungsschlitz 4 breiter ausgebildet als in dem triangelförmig verlaufenden Bereich 5. Der Dehnungsschlitz 4 kann mit einer dauerelastischen Masse verfüllt sein, was für eine verbesserte Führung sorgen kann. Üblicherweise ist die in der Sägemaschine ausgebildete Führungseinrichtung druckluftbetrieben. Es wird also zur Führung des Tragkörpers 1 ein Luftkissen aufgebaut. Verschlossene Dehnungsschlitze reduzieren den zur Führung notwendigen Luftbedarf. In the region 6 which extends straight, the expansion slot 4 is designed to be wider than in the region 5 which runs in a triangular shape. The expansion slot 4 can be filled with a permanently elastic mass, which can provide improved guidance. The guiding device formed in the sawing machine is usually operated by compressed air. An air cushion is therefore built up for guiding the supporting body 1. Closed expansion slots reduce the air required for guidance.
BezugszeichenlisteLIST OF REFERENCE NUMBERS
1 Tragkörper1 supporting body
2 Schneidplatte2 insert
2a Spanfläche2a rake face
2b Anlagefläche2b contact surface
3 Spanraum3 chip space
4 - Dehnungsschlitz4 - expansion slot
5 triangelförmig verlaufender Bereich5 triangular area
6 gerade verlaufender Bereich6 straight area
7 Bohrung7 hole
Winkelangle
F FlugkreisdurchmesserF flight circle diameter
L Abstand/Mündung bis ZentrumL distance / mouth to center
S SpanraumdurchmesserS chip space diameter
T Durchmesser Tragkörper z Zentrum T diameter support body z center

Claims

Patentansprüche claims
1 . Kreissägeblatt, bestehend aus einem Tragkörper ( 1 ) und einer Mehrzahl über den Umfang verteilt in den Tragkörper ( 1 ) eingesetzter, eine vordere Spanfläche (2a) und eine rückseitige Anlagefläche (2b) sowie eine einen Flugkreisdurchmesser (F) bildende Schneidkante aufweisende Schneidplatten (2), mit einem vor jeder Schneidplatte (2) ausgebildeten1 . Circular saw blade, consisting of a support body (1) and a plurality of inserted in the support body (1) distributed over the circumference, a front rake surface (2a) and a rear contact surface (2b) as well as a cutting edge (2) forming cutting edge diameter (F) ), with one in front of each insert (2)
- Spanraum (3) und einer Mehrzahl von über den Umfang verteilt angeordneter, sich nach radial innen erstreckender Dehnungsschlitze (4), die eine im wesentlichen triangelförmige Abschlusskonfiguration (5) mit einem innerhalb des Kurvenverlaufs liegenden Zentrum (Z) aufweisen und am Grund des Spanraumes (3) entspringen, gekennzeichnet durch folgende Merkmale:- Chip space (3) and a plurality of circumferentially arranged, radially inward extending expansion slots (4), which have an essentially triangular end configuration (5) with a center (Z) within the curve and at the bottom of the chip space (3) arise, characterized by the following features:
a) der Flugkreisdurchmesser (F) ist maximal 2 mm größer als der Durchmesser (T) des Tragkörpers ( 1 );a) the flight circle diameter (F) is a maximum of 2 mm larger than the diameter (T) of the support body (1);
b) der Abstand (L) der Dehnungsschlitze (4) von ihrem Ursprung bis zum Zentrum (Z) beträgt maximal 17 mm;b) the distance (L) of the expansion slots (4) from their origin to the center (Z) is a maximum of 17 mm;
c) der kleinste Spanraumdurchmesser (S) jedes Spanraumes (3) ist maximal 13 mm kleiner als der Flugkreisdurchmesser (F);c) the smallest chip space diameter (S) of each chip space (3) is at most 13 mm smaller than the flight circle diameter (F);
d) die Spanfläche (2a) der Schneidplatten (2) verläuft gegenüber der Anlagefläche (2b) geneigt.d) the rake face (2a) of the cutting plates (2) is inclined with respect to the contact face (2b).
2. Kreissägeblatt nach Anspruch 1 , dadurch gekennzeichnet, dass der Neigungswinkel ( ) zwischen Spanfläche (2a) und Anlagefläche (2b) im Bereich von 1 ° bis 7° liegt. 2. Circular saw blade according to claim 1, characterized in that the angle of inclination () between the rake face (2a) and the contact surface (2b) is in the range from 1 ° to 7 °.
3. Kreissägeblatt nach Anspruch 1 , dadurch gekennzeichnet, dass die Breite der Dehnungsschlitze (4) maximal 0,3 mm beträgt.3. Circular saw blade according to claim 1, characterized in that the width of the expansion slots (4) is a maximum of 0.3 mm.
4. Kreissägeblatt nach Anspruch 1 , dadurch gekennzeichnet, dass die Dehnungsschlitze (4) über den Umfang unregelmäßig verteilt sind.4. Circular saw blade according to claim 1, characterized in that the expansion slots (4) are distributed irregularly over the circumference.
5. Kreissägeblatt nach einem oder mehreren der vorstehenden Ansprüche, gekennzeichnet durch eine Oberflächenbeschichtung des Tragkörpers (1 )5. Circular saw blade according to one or more of the preceding claims, characterized by a surface coating of the support body (1)
- zur Vermeidung von Harzansatz während des Betriebes.- to avoid resin build-up during operation.
6. Kreissägeblatt nach Anspruch 3, dadurch gekennzeichnet, dass die Dehnungsschlitze (4) in ihrem gerade verlaufenden Bereich (5) breiter ausgebildet sind als in dem triangelförmig verlaufenden Bereich (6).6. Circular saw blade according to claim 3, characterized in that the expansion slots (4) in their straight region (5) are wider than in the triangular region (6).
7. Kreissägeblatt nach Anspruch 1 , dadurch gekennzeichnet, dass die Dehnungsschlitze (4) mit einem dauerelastischen Material ausgefüllt sind. 7. Circular saw blade according to claim 1, characterized in that the expansion slots (4) are filled with a permanently elastic material.
EP02737838A 2001-05-18 2002-05-15 Circular-saw blade comprising expansion slits extending radially inwards Expired - Lifetime EP1280627B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK02737838T DK1280627T3 (en) 2001-05-18 2002-05-15 Circular saw blade with expansion slots extending radially inward

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10124687 2001-05-18
DE10124687A DE10124687B4 (en) 2001-05-18 2001-05-18 circular saw blade
PCT/DE2002/001726 WO2002094489A1 (en) 2001-05-18 2002-05-15 Circular-saw blade comprising expansion slits extending radially inwards

Publications (2)

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EP1280627A1 true EP1280627A1 (en) 2003-02-05
EP1280627B1 EP1280627B1 (en) 2005-08-03

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US (1) US20040050233A1 (en)
EP (1) EP1280627B1 (en)
JP (1) JP2004519349A (en)
AT (1) ATE301019T1 (en)
DE (2) DE10124687B4 (en)
ES (1) ES2244784T3 (en)
WO (1) WO2002094489A1 (en)

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DE50203813D1 (en) 2005-09-08
JP2004519349A (en) 2004-07-02
DE10124687A1 (en) 2002-12-05
EP1280627B1 (en) 2005-08-03
ES2244784T3 (en) 2005-12-16
DE10124687B4 (en) 2006-01-12
US20040050233A1 (en) 2004-03-18
WO2002094489A1 (en) 2002-11-28
ATE301019T1 (en) 2005-08-15

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