EP1270161A1 - Lame de scie circulaire ayant un corps de lame à trous de diamètres différents - Google Patents

Lame de scie circulaire ayant un corps de lame à trous de diamètres différents Download PDF

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Publication number
EP1270161A1
EP1270161A1 EP01305679A EP01305679A EP1270161A1 EP 1270161 A1 EP1270161 A1 EP 1270161A1 EP 01305679 A EP01305679 A EP 01305679A EP 01305679 A EP01305679 A EP 01305679A EP 1270161 A1 EP1270161 A1 EP 1270161A1
Authority
EP
European Patent Office
Prior art keywords
holes
saw blade
circular saw
blade according
cutting
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.)
Withdrawn
Application number
EP01305679A
Other languages
German (de)
English (en)
Inventor
Heiri Özturk
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.)
Turbolite AG
Original Assignee
Turbolite 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
Application filed by Turbolite AG filed Critical Turbolite AG
Priority to EP01305679A priority Critical patent/EP1270161A1/fr
Publication of EP1270161A1 publication Critical patent/EP1270161A1/fr
Withdrawn legal-status Critical Current

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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

Definitions

  • the present invention relates generally to circular saw blades, and more particularly to circular saw blades with holes in their side faces.
  • One way in which the number of holes in the saw blade has been increased without adversely affecting the strength of the saw blade is to provide a pattern of holes arranged in a spiral design which results in the formation of spiral spokes. These spiral spokes provide a stronger support than straight spokes formed between the same number of holes.
  • this invention provides a circular saw blade comprising a support disc, with a pattern of holes in the body thereof, having cutting elements disposed around the periphery thereof, characterised in that the pattern of holes comprises a plurality of holes of different sizes.
  • the cutting disc may have a central pivot region, which does not penetrate the cut in the work-piece, thus permitting it to be thicker than the rest of the disc. It will be appreciated by the man skilled in the art that the increased thickness at the centre of the cutting disc will provide increased strength against side loading during cutting.
  • each ring could be made up of a collection of holes of substantially equal sizes.
  • the larger sized holes could be located closer to the cutting elements than the smaller sized holes. With this arrangement the larger holes near the cutting elements provide an improved level of heat dissipation, while the smaller holes nearer the centre of the saw blade provide a lower, but still noticeable, level of heat dissipation whilst retaining the structural integrity of the saw blade.
  • the smaller sized holes could be located closer to the cutting elements than the larger sized holes.
  • the smaller holes near the cutting elements satisfy a need for strength at the rim, whilst the larger holes near the centre of the saw blade facilitate improved removal of dust, or water passage nearer the centre of the saw blade. It is appreciated that alternative arrangements of rings may provide useful benefits.
  • the rings could be arranged so that a hole in one ring is not directly in line with a hole in an adjacent ring.
  • thickened central pivot region may also have holes, thereby increasing the appreciated benefits further.
  • the holes are substantially circular in shape, although it will be appreciated that other shaped holes may provide a desirable effect.
  • Figure 1 shows a standard circular cutting disc 1 comprising a main body 2, with cutting elements 3 arranged around its periphery, and a central mounting hole 4 which is engaged by the disc driving means (not shown). Also a sectional portion A has been highlighted by a dashed line.
  • Figure 2 shows a representative sectional portion A1 of a preferred embodiment of the invention which is suitable for cutting wood.
  • This portion shows the arrangement of holes, which would be continued around the whole of the cutting disc.
  • the holes 5 are grouped in to rings that run concentric to the central mounting hole 4.
  • Each ring is made up of a plurality of equal sized holes. The rings are arranged so that the smallest holes 5a are nearest the central mounting hole 4 and the largest holes 5c are furthest away from the central mounting hole 4.
  • Figure 3 shows another preferred embodiment where once again the cutting disc has equal sized holes arranged into concentric rings. However in this embodiment the ring comprising the largest holes 5c is arranged closest to the central mounting hole 4 and the ring comprising the smallest holes 5a is furthest from the central hole. As in Figure 2 this embodiment has cutting elements 3a suited to cutting wood.
  • Figures 4 and 5 show similar arrangement to Figures 2 and 3 but with cutting elements 3b more suitable for stone cutting.
  • Figure 6 shows an embodiment of the invention in which the central pivot region 6 is thicker than the rest of the cutting disc.
  • the thicker region provides increased strength to the central region of the disc.
  • the diameter of the thicker region is dependant on the required cutting depth of the disc. It will be appreciated from the invention that a balance between the thicker central pivot region and the outer cutting region must be achieved so that the disc has strength but still retains enough holes to give the necessary benefits.
  • Figure 7 shows an alternative arrangement of the relationship between adjacent rings of holes.
  • the rings are arranged so that a hole in one ring is out of line with a neighbouring hole in the adjacent rings. This arrangement acts to impede the transfer of heat from the cutting edge to the centre of the cutting disc, by providing a more tortuous path of metal through which the heat must travel before it reaches the centre of the disc.
  • Figures 8-11 show a variety of alternative arrangements. In each arrangement the pattern of hole sizes is different. For example in Figure 8, starting from the outer edge of the cutting disc there is a ring of large holes followed by a ring of smaller holes, then another ring of large holes and finally another ring of smaller holes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
EP01305679A 2001-06-29 2001-06-29 Lame de scie circulaire ayant un corps de lame à trous de diamètres différents Withdrawn EP1270161A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP01305679A EP1270161A1 (fr) 2001-06-29 2001-06-29 Lame de scie circulaire ayant un corps de lame à trous de diamètres différents

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01305679A EP1270161A1 (fr) 2001-06-29 2001-06-29 Lame de scie circulaire ayant un corps de lame à trous de diamètres différents

Publications (1)

Publication Number Publication Date
EP1270161A1 true EP1270161A1 (fr) 2003-01-02

Family

ID=8182066

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01305679A Withdrawn EP1270161A1 (fr) 2001-06-29 2001-06-29 Lame de scie circulaire ayant un corps de lame à trous de diamètres différents

Country Status (1)

Country Link
EP (1) EP1270161A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US212813A (en) * 1879-03-04 Improvement in circular saws
FR980209A (fr) * 1949-02-07 1951-05-09 Nouveau disque coupant pour marbres et similaires
US4445413A (en) * 1981-03-23 1984-05-01 Kabushiki Kaisha Fujikoshi T/A Nachi-Rujikoshi Corp. Slicing cutter blade
SU1562135A1 (ru) * 1988-06-15 1990-05-07 Марийский политехнический институт им.А.М.Горького Кругла пила
RU2083356C1 (ru) * 1995-07-03 1997-07-10 Тюменский государственный нефтегазовый университет Дисковая пила
EP0836903A1 (fr) * 1996-10-16 1998-04-22 Said Spa Disque diamanté pour la coupe de granit, marbre, béton armé et matériaux pierreux en général
DE29917361U1 (de) * 1999-10-03 2000-08-10 Fa. Röttger Jansen-Herfeld, 42853 Remscheid Kreissägeblatt mit mindestens einem konzentrischen Absatz
DE29910442U1 (de) * 1999-06-15 2000-10-19 DIEWE Diamantwerkzeuge GmbH, 86510 Ried Trennscheibe

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US212813A (en) * 1879-03-04 Improvement in circular saws
FR980209A (fr) * 1949-02-07 1951-05-09 Nouveau disque coupant pour marbres et similaires
US4445413A (en) * 1981-03-23 1984-05-01 Kabushiki Kaisha Fujikoshi T/A Nachi-Rujikoshi Corp. Slicing cutter blade
SU1562135A1 (ru) * 1988-06-15 1990-05-07 Марийский политехнический институт им.А.М.Горького Кругла пила
RU2083356C1 (ru) * 1995-07-03 1997-07-10 Тюменский государственный нефтегазовый университет Дисковая пила
EP0836903A1 (fr) * 1996-10-16 1998-04-22 Said Spa Disque diamanté pour la coupe de granit, marbre, béton armé et matériaux pierreux en général
DE29910442U1 (de) * 1999-06-15 2000-10-19 DIEWE Diamantwerkzeuge GmbH, 86510 Ried Trennscheibe
DE29917361U1 (de) * 1999-10-03 2000-08-10 Fa. Röttger Jansen-Herfeld, 42853 Remscheid Kreissägeblatt mit mindestens einem konzentrischen Absatz

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section PQ Week 199809, Derwent World Patents Index; Class P63, AN 1998-099326, XP002184473 *
SOVIET INVENTIONS ILLUSTRATED Section PQ Week 9101, Derwent World Patents Index; Class P63, AN 91-005476, XP002184442 *

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