DE1050987B - Low-noise circular saw blade with multiple slotted leaf surface - Google Patents
Low-noise circular saw blade with multiple slotted leaf surfaceInfo
- 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
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
- B23D61/025—Details 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)
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)
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)
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 |
-
1958
- 1958-03-18 DE DEB48232A patent/DE1050987B/en active Pending
Patent Citations (2)
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)
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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