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FR2646794A2 - CIRCULAR SAW BLADE - Google Patents

CIRCULAR SAW BLADE Download PDF

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Publication number
FR2646794A2
FR2646794A2 FR9005919A FR9005919A FR2646794A2 FR 2646794 A2 FR2646794 A2 FR 2646794A2 FR 9005919 A FR9005919 A FR 9005919A FR 9005919 A FR9005919 A FR 9005919A FR 2646794 A2 FR2646794 A2 FR 2646794A2
Authority
FR
France
Prior art keywords
support
saw blade
circular saw
screw
segment
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.)
Pending
Application number
FR9005919A
Other languages
French (fr)
Inventor
Manfred Fuerst
Erwin Schumacher
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.)
Airbus Defence and Space GmbH
Original Assignee
Messerschmitt Bolkow Blohm AG
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
Priority claimed from DE3904703A external-priority patent/DE3904703A1/en
Application filed by Messerschmitt Bolkow Blohm AG filed Critical Messerschmitt Bolkow Blohm AG
Publication of FR2646794A2 publication Critical patent/FR2646794A2/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28DWORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/12Saw-blades or saw-discs specially adapted for working stone
    • B28D1/121Circular saw blades
    • B28D1/122Circular saw blades with exchangeable cutter bits or cutter segments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02Circular saw blades
    • B23D61/025Details of saw blade body
    • B23D61/026Composite body, e.g. laminated
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D61/00Tools for sawing machines or sawing devices; Clamping devices for these tools
    • B23D61/02Circular saw blades
    • B23D61/04Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted
    • B23D61/06Circular saw blades with inserted saw teeth, i.e. the teeth being individually inserted in exchangeable arrangement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Drilling Tools (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

Lame de scie circulaire comportant des segments de fixation pour des éléments interchangeables de coupe ou de meulage appropriés en particulier au travail de la pierre. L'élément de coupe ou de meulage 5 est raccordé au segment de fixation 2 par un support 6 en forme de fourche reposant sur celui-ci en le chevauchant des deux côtés, et entre le segment de fixation et le support 6 est aménagé un raccordement à vis constitué par une cheville 7 munie d'une tête 7.1 et d'un perçage taraudé ainsi que par une vis 8 vissée dans la tige 7.2 de la cheville.Circular saw blade with fixing segments for interchangeable cutting or grinding elements suitable in particular for working stone. The cutting or grinding element 5 is connected to the fixing segment 2 by a fork-shaped support 6 resting thereon overlapping it on both sides, and between the fixing segment and the support 6 is provided a connection screw consisting of a plug 7 provided with a head 7.1 and a threaded hole as well as a screw 8 screwed into the rod 7.2 of the plug.

Description

LAME DE SCIE CIRCULAIRECIRCULAR SAW BLADE

Le brevet principal (brevet N' 90 01079 du 30 janvier 1990) se rapporte à une lame de scie circulaire comportant des segments de fixation, disposés à la périphérie d'un corps de lame en matériau composite renforcé de fibres, pour des éléments interchangeables de coupe ou de meulage en un matériau diamanté ou similaire approprié en particulier au travail de la pierre, dans laquelle le corps de lame est un stratifié dans lequel chaque couche en forme de disque circulaire est composée de segments de disques circulaires s'aboutant les uns aux autres et lesdits segments de disques circulaires ou leurs joints d'assemblage sont décalés angulairement d'une couche à l'autre. Par rapport à un disque en acier, un tel corps de lame est peu bruyant sans que sa solidité et sa rigidité en soient diminuées. De surcroît, la structure du corps de lame peut être réalisée par des moyens de fabrication relativement simple, le montage de la lame de scie circulaire ne devant présenter aucune difficulté particulière. Dans le cadre de cette dernière exigence, il se pose naturellement le problème d'un raccordement amovible des éléments de coupe ou de meulage avec les segments de fixation, raccordement qui non seulement doit assurer leur interchangeabilité, mais garantir aussi la fiabilité de l'assemblage. Les moyens de raccordement doivent, en effet, pouvoir réaliser une liaison par friction aussi grande que possible sur un espace restreint (limité par l'épaisseur du corps de la lame). L'invention a pour objet de mettre au point un raccordement des éléments de coupe ou de meulage aux segments de fixation d'une lame de scie circulaire du type précité qui remplisse ces critères sans mise en  The main patent (Patent No. 90 01079 of January 30, 1990) relates to a circular saw blade having securing segments disposed at the periphery of a fiber reinforced composite material blade body for interchangeable elements of cutting or grinding a diamond material or the like suitable in particular for working stone, wherein the blade body is a laminate in which each circular disk-shaped layer is composed of circular disk segments abutting each other; others and said circular disk segments or their connecting joints are angularly shifted from one layer to another. Compared to a steel disc, such a blade body is quiet without its strength and rigidity are reduced. In addition, the structure of the blade body can be achieved by relatively simple manufacturing means, the mounting of the circular saw blade should not present any particular difficulty. In the context of this last requirement, there is naturally the problem of a removable connection of the cutting or grinding elements with the fastening segments, which connection must not only ensure their interchangeability, but also guarantee the reliability of the assembly. . The connecting means must, in fact, be able to achieve a link as much friction as possible on a restricted space (limited by the thickness of the body of the blade). The object of the invention is to provide a connection of the cutting or grinding elements to the securing segments of a circular saw blade of the aforementioned type which fulfills these criteria without being used.

oeuvre de moyens importants.important means.

Avec une lame de scie circulaire de ce type, ce résultat est atteint selon l'invention -par le fait que l'élément individuel de coupe ou de meulage est raccordé au segment de fixation associé par un support en forme de fourche reposant sur celui-ci en le chevauchant des deux côtés, et qu'entre le segment de fixation et le support est aménagé un raccordement à vis constitué par une cheville munie d'une tête et d'un perçage taraudé et engagé dans des trous de passage du raccordement situés dans l'alignement l'un de l'autre du segment de fixation et du support ainsi que par une vis vissée dans la tige de la cheville. Avec l'engrènement proposé d'un support associé à l'élément de coupe ou de meulage avec le segment de fixation sur lequel il chevauche des deux côtés, on peut réaliser, en liaison avec le raccordement à vis proposé, une pression de serrage entre le support et l'élément de fixation sur presque toute la largeur du support déterminée par l'épaisseur de la lame. Dans un mode de réalisation avantageux de l'invention, on prévoit un ajustement fin du support par rapport aux surfaces latérales du segment de fixation, ce qui permet d'augmenter encore la liaison par friction entre le support et le segment de fixation ou la solidité de leur assemblage. Selon une autre particularité de l'invention, les têtes de la cheville et de la vis sont noyées dans les branches de la fourche du support, ce qui permet  With a circular saw blade of this type, this result is achieved according to the invention - by the fact that the individual cutting or grinding element is connected to the associated fastening segment by a fork-shaped support resting on it. by overlapping it on both sides, and between the fixing segment and the support is arranged a screw connection constituted by a pin provided with a head and a threaded hole and engaged in the passage holes of the connection located in alignment with each other of the fixing segment and the support and by a screw screwed into the pin of the ankle. With the proposed meshing of a support associated with the cutting or grinding element with the fastening segment on which it overlaps on both sides, it can be realized, in connection with the proposed screw connection, a clamping pressure between the support and the fastening element over almost the entire width of the support determined by the thickness of the blade. In an advantageous embodiment of the invention, a fine adjustment of the support with respect to the lateral surfaces of the fixing segment is provided, which makes it possible to further increase the frictional connection between the support and the fixing segment or the solidity of their assembly. According to another particularity of the invention, the heads of the ankle and the screw are embedded in the branches of the fork of the support, which allows

d'obtenir une surface extérieure aérodynamique du support.  to obtain an aerodynamic outer surface of the support.

Selon une autre caractéristique de l'invention, les têtes de la cheville et de la vis peuvent être munies de trous frontaux ou autres surfaces de prise similaires permettant un desserrage facile du raccordement à vis et par conséquent un changement rapide du support ou de  According to another characteristic of the invention, the heads of the ankle and the screw may be provided with front holes or other similar gripping surfaces allowing easy loosening of the screw connection and therefore a rapid change of the support or

l'élément de coupe ou de meulage y associé.  the cutting or grinding element associated therewith.

L'invention est expliquée plus en détail ci-après à l'aide d'un exemple de réalisation. Le dessin (correspondant à la figure 2 du brevet principal) représente une coupe transversale d'un segment de fixation 2 en métal qui est inséré dans un corps de lame 1 en matériau composite renforcé de fibres d'une lame de scie circulaire et sur lequel est fixé, de façon amovible, un élément de coupe ou de meulage 5 en un matériau  The invention is explained in more detail below with the aid of an exemplary embodiment. The drawing (corresponding to Figure 2 of the main patent) shows a cross-section of a metal fastening segment 2 which is inserted into a blade body 1 of fiber reinforced composite material of a circular saw blade and on which is removably attached to a cutting or grinding member 5 of a material

diamanté ou similaire approprié au travail de la pierre.  diamond or similar suitable for stone work.

Le moyen de fixation de l'élément de coupe ou de meulage est un support 6 en forme de fourche, par exemple collé à celui-ci, qui est placé sur le segment de fixation 2 en le chevauchant des deux côtés. Leur assemblage est assuré par une cheville 7, munie d'une tête 7.1 et d'un perçage taraudé, et engagée dans des trous de passage 2.2 et 6.1 disposés dans l'alignement l'un de l'autre du segment de fixation 2 et du support 6 et par une vis 8 vissée dans la tige 7.2 de la cheville. Grâce à un ajustement fin du support 6 par rapport aux surfaces latérales du segment de fixation 2, on a la garantie qu'ils seront maintenus dans leur position réciproque par une liaison par friction sous l'effet du serrage de la cheville 7 et de la vis 8. Le raccordement du support 6 au segment de fixation 2 peut, par conséquent, également supporter une charge en cas de transmission d'un effort dans le sens axial de la cheville 7 et de la vis 8. Par un perçage taraudé s'étendant jusque dans la tête 7.1 de la cheville 7, on arrivé à réaliser au moyen de la cheville 7 un raccordement travaillant en double cisaillement entre le support 6 et le segment de fixation 2, et ce, malgré l'encastrement respectif des têtes 7. 1 et 8.1 de la cheville et de la vis dans les branches y associées 6.2 de la fourche; en pareil cas, on prévoit de préférence un ajustement fin pour la cheville 7 dans les trous de  The means for fixing the cutting or grinding element is a fork-shaped support 6, for example glued to it, which is placed on the fixing segment 2 by overlapping it on both sides. Their assembly is provided by a pin 7, provided with a 7.1 head and a threaded bore, and engaged in through holes 2.2 and 6.1 arranged in alignment with one another of the fixing segment 2 and of the support 6 and by a screw 8 screwed into the rod 7.2 of the ankle. Thanks to a fine adjustment of the support 6 with respect to the lateral surfaces of the fixing segment 2, it is ensured that they will be held in their mutual position by a frictional connection under the effect of the tightening of the ankle 7 and the 8. The connection of the support 6 to the securing segment 2 can therefore also support a load in the event of transmission of a force in the axial direction of the pin 7 and the screw 8. By a threaded bore extending into the head 7.1 of the pin 7, it has been possible to achieve by means of the pin 7 a connection working in double shear between the support 6 and the securing segment 2, and this, despite the respective embedding of the heads 7. 1 and 8.1 of the ankle and the screw in the associated branches 6.2 of the fork; in such a case, fine adjustment of the ankle 7 in the

passage 2.2 et 6.1.passage 2.2 and 6.1.

Pour finir, en raison de leur encastrement, les têtes 7.1 et 8.1 de la cheville et de la vis sont munies de trous frontaux 7.3 et 8.2 pour pouvoir réunir ou séparer la cheville 7 et la vis 8 au moyen d'un outil engagé dans ces trous. Par ailleurs, le support, dans la zone de sa tête peut comporter un ou plusieurs trous de  Finally, because of their embedding, the heads 7.1 and 8.1 of the ankle and the screw are provided with front holes 7.3 and 8.2 to be able to join or separate the pin 7 and the screw 8 by means of a tool engaged in these holes. Moreover, the support, in the zone of its head can comprise one or more holes of

passage 6.3 pour y engager un outil aux fins de montage.  passage 6.3 to engage a tool for mounting.

Claims (5)

REVENDICATIONS 1. Lame de scie circulaire selon la revendication 1 du brevet principal n 90 01079 comportant des segments de fixation, disposés à la périphérie d'un corps de lame en matériau composite renforcé de fibres, pour des éléments interchangeables de coupe ou de meulage en un matériau diamanté ou similaire approprié en particulier au travail de la pierre, caractérisée par le fait que l'élément individuel de coupe ou de meulage (5) est raccordé au segment de fixation associé (2) par un support (6) en forme de fourche reposant sur celui-ci en le chevauchant des deux côtés et qu'entre le segment de fixation (2) et le support (6) est aménagé un raccordement à vis constitué par une cheville (7) munie d'une tête (7.1) et d'un perçage taraudé et engagée dans des trous de passage (2.2 et 6.1) situés dans l'alignement l'un de l'autre du segment de fixation (2) et du support (6), ainsi que par une vis (8) vissée dans  A circular saw blade according to claim 1 of the main patent no. 90 01079 comprising securing segments disposed at the periphery of a fiber reinforced composite material blade body for interchangeable cutting or grinding elements in one. diamond or similar material suitable in particular for working stone, characterized in that the individual cutting or grinding element (5) is connected to the associated fastening segment (2) by a fork-shaped support (6) resting on the latter by overlapping on both sides and between the fixing segment (2) and the support (6) is arranged a screw connection constituted by a pin (7) provided with a head (7.1) and threaded hole and engaged in through holes (2.2 and 6.1) in alignment with each other of the fastening segment (2) and the support (6), as well as by a screw (8). ) screwed into la tige (7.2) de la cheville.the stem (7.2) of the ankle. 2. Lame de scie circulaire selon la revendication 1, caractérisée par le fait qu'on prévoit un ajustement fin du support (6) par rapport aux surfaces latérales du  2. circular saw blade according to claim 1, characterized in that a fine adjustment of the support (6) is provided with respect to the lateral surfaces of the segment de fixation (2).fixing segment (2). 3. Lame de scie circulaire selon la revendication 1, caractérisée par le fait que les têtes (7.1, 8.1) de la cheville et de la vis sont noyées dans les branches (6.2)  3. Circular saw blade according to claim 1, characterized in that the heads (7.1, 8.1) of the dowel and the screw are embedded in the branches (6.2). de la fourche du support (6).the fork of the support (6). 4. Lame de scie circulaire selon la revendication 3, caractérisée par le fait que les têtes (7.1, 8.1) de la cheville et de la vis sont munies de trous frontaux (7.3,  Circular saw blade according to Claim 3, characterized in that the heads (7.1, 8.1) of the dowel and the screw are provided with end holes (7.3, 8.2) ou de surfaces de prise similaires.  8.2) or similar seating surfaces.
FR9005919A 1989-02-16 1990-05-11 CIRCULAR SAW BLADE Pending FR2646794A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3904703A DE3904703A1 (en) 1989-02-16 1989-02-16 Circular saw blade
DE19893915695 DE3915695A1 (en) 1989-02-16 1989-05-13 Laminated fibre reinforced plastics circular saw - includes bolted-on cutters permitting easy replacement

Publications (1)

Publication Number Publication Date
FR2646794A2 true FR2646794A2 (en) 1990-11-16

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ID=25877863

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9005919A Pending FR2646794A2 (en) 1989-02-16 1990-05-11 CIRCULAR SAW BLADE

Country Status (2)

Country Link
DE (1) DE3915695A1 (en)
FR (1) FR2646794A2 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536178A (en) * 1920-10-20 1925-05-05 William J Hackett Asphalt-pavement-cutting machine
US2969053A (en) * 1959-03-06 1961-01-24 Wentzel Carbide Tool Company I Teeth for reciprocating stone cutting saw blade
US3419976A (en) * 1966-01-19 1969-01-07 Francis M. Reising Ditching wheels and mountings therefor
US3795078A (en) * 1972-11-01 1974-03-05 Norton Co Segmental cut-off wheel
DE7533569U (en) * 1975-10-22 1976-04-22 Ernst Winter & Sohn Norderstedt Gmbh & Co, 2000 Norderstedt Holder for cutting elements of cutting discs
US4378719A (en) * 1979-01-22 1983-04-05 Burgess Vernon J Saw chain connector
WO1986006308A1 (en) * 1985-04-22 1986-11-06 Weyerhaeuser Company Rotary machining tool and method for its manufacture
DE8811470U1 (en) * 1988-08-27 1988-11-17 Ernst Winter & Sohn (Gmbh & Co), 2000 Hamburg saw

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1536178A (en) * 1920-10-20 1925-05-05 William J Hackett Asphalt-pavement-cutting machine
US2969053A (en) * 1959-03-06 1961-01-24 Wentzel Carbide Tool Company I Teeth for reciprocating stone cutting saw blade
US3419976A (en) * 1966-01-19 1969-01-07 Francis M. Reising Ditching wheels and mountings therefor
US3795078A (en) * 1972-11-01 1974-03-05 Norton Co Segmental cut-off wheel
DE7533569U (en) * 1975-10-22 1976-04-22 Ernst Winter & Sohn Norderstedt Gmbh & Co, 2000 Norderstedt Holder for cutting elements of cutting discs
US4378719A (en) * 1979-01-22 1983-04-05 Burgess Vernon J Saw chain connector
WO1986006308A1 (en) * 1985-04-22 1986-11-06 Weyerhaeuser Company Rotary machining tool and method for its manufacture
DE8811470U1 (en) * 1988-08-27 1988-11-17 Ernst Winter & Sohn (Gmbh & Co), 2000 Hamburg saw

Also Published As

Publication number Publication date
DE3915695A1 (en) 1990-11-15

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