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DE1050987B - Low-noise circular saw blade with multiple slotted leaf surface - Google Patents

Low-noise circular saw blade with multiple slotted leaf surface

Info

Publication number
DE1050987B
DE1050987B DEB48232A DEB0048232A DE1050987B DE 1050987 B DE1050987 B DE 1050987B DE B48232 A DEB48232 A DE B48232A DE B0048232 A DEB0048232 A DE B0048232A DE 1050987 B DE1050987 B DE 1050987B
Authority
DE
Germany
Prior art keywords
circular saw
saw blade
low
leaf surface
multiple slotted
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
DEB48232A
Other languages
German (de)
Inventor
Erwin Buergel
Heinz 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.)
ERWIN BUERGEL FA
H O Schumacher & Sohn
Original Assignee
ERWIN BUERGEL FA
H O Schumacher & Sohn
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 ERWIN BUERGEL FA, H O Schumacher & Sohn filed Critical ERWIN BUERGEL FA
Priority to DEB48232A priority Critical patent/DE1050987B/en
Publication of DE1050987B publication Critical patent/DE1050987B/en
Pending legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sawing (AREA)

Description

Geräuscharmes Kreissägeblatt mit mehrfach geschlitzter Blattfläche Die Geräusche, die Kreissägeblätter beim Sägen verursachen. auf ein erträgliches Maß herabzusetzen. wurde mit den verschiedensten Mitteln versucht. So wurde vorgeschlagen. die Zähnezahlen herabzusetzen oder den Zähnen eine Form zu geben. die sich schwingungsdämpfend auswirken sollte. Die Dämpfung der Eigenschwingung der Sägeblätter und damit der Resonanzbildung sollte nach einem anderen Vorschlag durch Vernieten von zwei Sägeblättern zu einem Sägeblatt erreicht werden. Schließlich wurde vorgeschlagen, die Sägeblätter mit radial liegenden Schlitzen zu versehen, die zwischen der Befestigungsbohrung und dem Zahnkranz liegen. Zur Erhöhung der Dämpfungs-Wirkung dieser Schlitze wurden diese noch mit weicheren Nretallen oder mit plastischen Massen ausgefüllt. Nach diesem Vorschlag ausgeführte Kreissägeblätter sind nicht mehr ein geschlossener Resonanzkörper, sondern sie werden in mehrere Resonanzkörper durch die radial angebrachten Schlitze aufgeteilt. die lediglich durch den Zahnkranz und den Ring um die Befestigungsbohrung miteinander verbunden sind. Die Resonanzflächen sind erheblich kleiner, die Eigenfrequenz derselben demzufolge höher geworden. Da aber diese Resonanzflächen die gleiche Eigenfrequenz haben, die gesamte Resonanzfläche für diese höher gewordene Eigenfrequenz aber fast genau so groß geblieben ist wie bei der ungeschlitzten Säge. ist die geräuschdämpfende Wirkung der radialen Schlitze nicht sehr groß geworden. Es besteht jetzt sogar gegenüber einer ttnge_chlitzten Kreissäge die Gefahr, daß die relativ kleinen, stehengebliebenen Stege der neuen. höheren F-i`-enfrequenz rle_ Sägeblattes nicht mehr gewachsen sind und brechen.Low-noise circular saw blade with multiple slotted blade surface The noises that circular saw blades make when sawing. to a tolerable one Reduce measure. has been tried by a wide variety of means. So it was suggested. reduce the number of teeth or give the teeth a shape. which dampen vibrations should affect. The damping of the natural oscillation of the saw blades and thus the According to another suggestion, resonance formation should be achieved by riveting two saw blades to a saw blade can be achieved. Finally it was suggested the saw blades to be provided with radially lying slots between the mounting hole and the ring gear. To increase the damping effect these slots were these are filled with softer metals or with plastic masses. To Circular saw blades designed according to this proposal are no longer closed Sound boxes, but they are placed in several sound boxes by the radially Split slots. only through the ring gear and the ring around the mounting hole are connected to each other. The resonance surfaces are considerably smaller, the natural frequency consequently it has become higher. But since these resonance surfaces have the same natural frequency have, but almost the entire resonance surface for this higher natural frequency has remained just as large as with the unslotted saw. is the noise-dampening one Effect of the radial slots did not become very large. It even exists opposite now a circular saw with a long slit, the danger that the relatively small ones that stand still Bridges of the new. higher F-i`-en frequency rle_ saw blade are no longer able to cope and break.

Gemäß der Erfindung wirrl die Geräuschdämpfung der Krei__ä'geblätter ehenfall_ durch Schlitze erreicht. die auch durch geeignete Stoffe zur Erhöhung der Dämpfung ausgefüllt werden können. Aber zum Unterschied vom bereits bekannten V or_chlag wird das Kreissägeblatt nicht in -leiclimäßi,-e. sondern in unterschiedlich große Segmente aufgeteilt. Auf diese Weise werden verschieden große Klanzkörper erzeu-t. deren Eigenfrequenzen verschieden hohenTönen entsprechen. Die Resonanzwirkung rler einzelnen Segmente für ihre ieweili'e Eigenfrequenz ist demnach auch wesentlich geringer. weil die schwingende Masse kleiner geworden ist. E_ ist gleichgültig. \vie die Schlitze liegen, ob sie gerade sind oder eine Kurvenform haben. Sie müssen nur _o au#,efiihrt sein. daß sie das Kreissägeblatt iii ungleich -roße Segmente aufteilen. Ein Ausführungsbeispiel einer Kreissäge gemäß der Erfindung ist in der Abbildung dargestellt. Hier wurden vier kreisbogenförmige Schlitze 2 gewählt, von denen ein jeder auf dem Kreissägeblatt 1 zwischen Befestigungsbohrung 3 und Zahnkranz 4 eine andere Lage hat. Die Segmente 5. 6. 7 und 8 unterscheiden ;ich durch diese Art der Teilung wesentlich in ihrer Grölte voneinander und haben auch sich stärker voneinander unterscheidende Eigenfrequenzen. Das auf diese Weise hergestellte Kreissägeblatt hat daher keine einheitliche. Mark hervorgehobene Eigenfrequenz. sondern mehrere verschieden hohe Eigenfrequenzen. für die aber keine großen Resonanzkörper mehr vorhanden sind. Die Arbeitsgeräusche eines solchen KreiS_ägeblatte_ werden daher wesentlich stärker gedämpft, als e_ bisher gelungen war. Dämpfende Füllungen können diese @@ir',<ung noch verbessern.According to the invention, the noise attenuation of the circulars is tangled ehenfall_ achieved through slots. which also through suitable substances to increase the attenuation can be filled out. But in contrast to the already known The circular saw blade is not suggested in -leiclimäßi, -e. but in different divided into large segments. In this way, clusters of different sizes are created create-t. whose natural frequencies correspond to different high tones. The resonance effect The individual segments for their respective natural frequency is therefore also essential less. because the oscillating mass has become smaller. E_ is indifferent. How the slots lie, whether they are straight or curved. You need to just _o au #, be led. that they use the circular saw blade iii unequal segments split up. An embodiment of a circular saw according to the invention is shown in FIG Figure shown. Here four circular arc-shaped slots 2 were chosen from each of which on the circular saw blade 1 between the mounting hole 3 and the ring gear 4 has a different location. The segments 5. 6. 7 and 8 differ; i by this Kind of division substantially in their grölt from each other and also have become stronger mutually different natural frequencies. The circular saw blade made in this way therefore has no uniform. Mark highlighted natural frequency. but several different high natural frequencies. but no more large resonance bodies for them available. The working noises of such a circular saw blade are therefore much more dampened than e_ had previously managed. You can use cushioning fillings improve this @@ ir ', <ung.

Claims (1)

P.%-rE\TA\SPRUCH: Geräuscharmes Kreissägeblatt mit mehrfach gesCfilitzter Blattfläche. dadurch gekennzeichnet. daß die Schlitze das Krei__äl-eblatt in ungleiche 'Segmente aufteilen. In Betracht gezogene Druckschriften: Schweizerische Patentschrift \ r. 184359-. L-S--#.-Patent_clirift 'Ni-. 2363559. P.% - rE \ TA \ SPRUCH: Low-noise circular saw blade with multi-sharpened blade surface. characterized. that the slits divide the circle leaf into unequal segments. Publications considered: Swiss patent specification \ r. 184359-. LS - # .- Patent_clirift 'Ni-. 2363559.
DEB48232A 1958-03-18 1958-03-18 Low-noise circular saw blade with multiple slotted leaf surface Pending DE1050987B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB48232A DE1050987B (en) 1958-03-18 1958-03-18 Low-noise circular saw blade with multiple slotted leaf surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB48232A DE1050987B (en) 1958-03-18 1958-03-18 Low-noise circular saw blade with multiple slotted leaf surface

Publications (1)

Publication Number Publication Date
DE1050987B true DE1050987B (en) 1959-02-19

Family

ID=6968507

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB48232A Pending DE1050987B (en) 1958-03-18 1958-03-18 Low-noise circular saw blade with multiple slotted leaf surface

Country Status (1)

Country Link
DE (1) DE1050987B (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623339A1 (en) * 1976-05-25 1977-12-08 Salje Ernst CIRCULAR SAW TOOL
US4240315A (en) * 1978-02-16 1980-12-23 A. Ahlstrom Osakeyhtio Circular saw blade
DE2946709A1 (en) * 1979-11-20 1981-05-27 Fa. Röttger Jansen-Herfeld, 5630 Remscheid Circular saw blade arrangement - has two vibration-damping inserts of equal thickness to blade in openings between blade centre and periphery
WO1985005064A1 (en) * 1984-05-03 1985-11-21 Frans Gunnar Waldemar Fjelkner A cutting or ripping blade
DE4328482A1 (en) * 1993-08-24 1995-03-02 Fgw Forsch Werkzeuge Werkstoff Circular saw blade
ES2068754A2 (en) * 1993-04-15 1995-04-16 Herramientas Especiales Y De P Anti-friction system for circular saw
US5555788A (en) * 1995-03-29 1996-09-17 Credo Tool Company Saw blade
WO1997013609A1 (en) * 1995-10-12 1997-04-17 GEBELIUS, Hjördis, Florence, Maria Method to prevent or reduce formation of magnetism in two adjacently located saw blades rotating in opposed directions, and a device for utilization of the method
USD382786S (en) 1995-03-02 1997-08-26 Black & Decker Inc. Circular saw blade with heat vents
USD383368S (en) 1996-03-15 1997-09-09 Black & Decker Inc. Saw blade with vents
USD388318S (en) 1996-03-15 1997-12-30 Black & Decker Inc. Decorative vent pattern for circular saw blades
US5758561A (en) * 1995-09-26 1998-06-02 Black & Decker Inc. Circular saw blade and method
DE19715490A1 (en) * 1997-04-14 1998-10-15 Dia Lux Diamantwerkzeuge Gmbh Cutting disc and method of making the same
US5896800A (en) * 1995-09-26 1999-04-27 Black & Decker Inc. Circular saw blade
EP2921257A1 (en) * 2014-03-19 2015-09-23 Dr. Müller Diamantmetall AG Peel grinding tool with resonance vibration absorbing slits

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH184359A (en) * 1935-03-16 1936-05-31 Kiener Franz Circular saw disc.
US2563559A (en) * 1949-12-22 1951-08-07 Meyers W F Co Circular saw having vibration damping means

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH184359A (en) * 1935-03-16 1936-05-31 Kiener Franz Circular saw disc.
US2563559A (en) * 1949-12-22 1951-08-07 Meyers W F Co Circular saw having vibration damping means

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2623339A1 (en) * 1976-05-25 1977-12-08 Salje Ernst CIRCULAR SAW TOOL
US4240315A (en) * 1978-02-16 1980-12-23 A. Ahlstrom Osakeyhtio Circular saw blade
DE2946709A1 (en) * 1979-11-20 1981-05-27 Fa. Röttger Jansen-Herfeld, 5630 Remscheid Circular saw blade arrangement - has two vibration-damping inserts of equal thickness to blade in openings between blade centre and periphery
WO1985005064A1 (en) * 1984-05-03 1985-11-21 Frans Gunnar Waldemar Fjelkner A cutting or ripping blade
ES2068754A2 (en) * 1993-04-15 1995-04-16 Herramientas Especiales Y De P Anti-friction system for circular saw
DE4328482C2 (en) * 1993-08-24 1998-01-29 Fgw Forsch Werkzeuge Werkstoff Circular saw blade
DE4328482A1 (en) * 1993-08-24 1995-03-02 Fgw Forsch Werkzeuge Werkstoff Circular saw blade
USD382786S (en) 1995-03-02 1997-08-26 Black & Decker Inc. Circular saw blade with heat vents
CN1064876C (en) * 1995-03-29 2001-04-25 克雷多工具公司 Circular saw blade with
WO1996030152A1 (en) * 1995-03-29 1996-10-03 Credo Tool Company Circular saw blade with 'j'-shaped radial expansion slots and arced body slots
US5555788A (en) * 1995-03-29 1996-09-17 Credo Tool Company Saw blade
GB2313339A (en) * 1995-03-29 1997-11-26 Credo Tool Co Circular saw blade with J-shaped radial expansion slots and arced body slots
GB2313339B (en) * 1995-03-29 1998-10-14 Credo Tool Co Saw blade
US5896800A (en) * 1995-09-26 1999-04-27 Black & Decker Inc. Circular saw blade
US5758561A (en) * 1995-09-26 1998-06-02 Black & Decker Inc. Circular saw blade and method
US6065370A (en) * 1995-09-26 2000-05-23 Black & Decker Inc. Circular saw blade and method
AU703038B2 (en) * 1995-10-12 1999-03-11 Gebelius, Hjordis Florence Maria Method to prevent or reduce formation of magnetism in two adjacently located saw blades rotating in opposed directions, and a device for utilization of the method
WO1997013609A1 (en) * 1995-10-12 1997-04-17 GEBELIUS, Hjördis, Florence, Maria Method to prevent or reduce formation of magnetism in two adjacently located saw blades rotating in opposed directions, and a device for utilization of the method
US6427568B1 (en) 1995-10-12 2002-08-06 Sven Runo Vilhelm Gebelius Method to prevent or reduce formation of magnetism in two adjacently located saw blades rotating in opposed directions, and a device for utilization of the method
USD388318S (en) 1996-03-15 1997-12-30 Black & Decker Inc. Decorative vent pattern for circular saw blades
USD383368S (en) 1996-03-15 1997-09-09 Black & Decker Inc. Saw blade with vents
DE19715490A1 (en) * 1997-04-14 1998-10-15 Dia Lux Diamantwerkzeuge Gmbh Cutting disc and method of making the same
DE19715490C2 (en) * 1997-04-14 2000-06-21 Dia Lux Diamantwerkzeuge Gmbh Process for producing a cutting disc, and cutting discs in particular for cutting or sawing natural stone or concrete, for example
EP2921257A1 (en) * 2014-03-19 2015-09-23 Dr. Müller Diamantmetall AG Peel grinding tool with resonance vibration absorbing slits

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