EP0204610A1 - Schneidvorrichtung für Kettensägen, insbesondere für das Schneiden von weichen, klebrigen oder verschmutzenden Materialien - Google Patents

Schneidvorrichtung für Kettensägen, insbesondere für das Schneiden von weichen, klebrigen oder verschmutzenden Materialien Download PDF

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Publication number
EP0204610A1
EP0204610A1 EP86401105A EP86401105A EP0204610A1 EP 0204610 A1 EP0204610 A1 EP 0204610A1 EP 86401105 A EP86401105 A EP 86401105A EP 86401105 A EP86401105 A EP 86401105A EP 0204610 A1 EP0204610 A1 EP 0204610A1
Authority
EP
European Patent Office
Prior art keywords
cutting
tools
plane
chain
scraper
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
EP86401105A
Other languages
English (en)
French (fr)
Other versions
EP0204610B1 (de
Inventor
Jean-Claude Malet
Gérard Miachon
Jean Regnier
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.)
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
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 Commissariat a lEnergie Atomique CEA filed Critical Commissariat a lEnergie Atomique CEA
Publication of EP0204610A1 publication Critical patent/EP0204610A1/de
Application granted granted Critical
Publication of EP0204610B1 publication Critical patent/EP0204610B1/de
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B17/00—Chain saws; Equipment therefor
    • B27B17/02—Chain saws equipped with guide bar
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B33/00—Sawing tools for saw mills, sawing machines, or sawing devices
    • B27B33/14—Saw chains
    • B27B33/142—Cutter elements
    • 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
    • Y10T83/242—With means to clean work or tool
    • 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
    • Y10T83/707—By endless band or chain knife
    • Y10T83/7264—With special blade guide means

Definitions

  • the present invention relates to a cutting device for a chainsaw. It is particularly applicable for cutting tender, sticky or fouling materials, such as a soft metal, for example sodium, plastics, etc.
  • the chainsaws generally used for cutting tender materials include cutting devices such as that shown in cross section in FIG. 1.
  • This device comprises a chain 2 composed of links 4 guided in translation, along a cutting plane perpendicular to the plane of the figure, by a chain guide 6.
  • Each link 4 comprises a pair of flanges 8, 10 located on either side of the cutting plane. Two successive links 4 are connected by a connecting link 12 interposed between the flanges 8, 10. An axis 14 pivotally connects said flanges 8, 10 and the corresponding connecting link 12. This protrudes towards the chain guide 6 and is slidably housed in a U-shaped surface formed in said chain guide 6; the chain is thus guided in translation.
  • the flanges 8, 10 extend opposite the chain guide 6 to each form a cutting tool 16, 18 respectively.
  • Each cutting tool has a sharp, curved tip that curves inward from the cutting plane.
  • the object of the present invention is precisely to solve this problem by proposing a cutting device for a chainsaw, in particular for cutting tender materials, comprising a chain guided in translation along a cutting plane by a chain guide and comprising alternately cutting tools. arranged on each side of the cutting plane, each cutting tool having a sharp, curved end curving towards the outside of the cutting plane and defining a concave surface, characterized in that a scraper, arranged on each side and at proximity to the chain guide and the cutting tools parallel to the cutting plane, has two ends projecting towards said plane, each having a convex surface complementary to said concave surface, so that said ends rid said tools of cutting waste during tools pass over the scraper.
  • an elastic system is interposed between the chain guide and the scraper, so that the latter is able to apply its two ends with a certain force against the cutting tools.
  • the cutting device firstly comprises a chain 22 composed of links 24 guided in translation along a cutting plane perpendicular to the plane of FIG. 2 by a chain guide 26.
  • Each link 24 comprises a pair of flanges 28, 30 arranged on either side of the cutting plane. Two successive links 24 are connected by a connecting link 32 interposed between said flanges 28, 30.
  • a hole 34 is drilled transversely in each of the connecting links 32 and in each of the flanges 28, 30 near their longitudinal ends.
  • An axis 36 is housed in each of the holes 34 so as to pivotally mount the connecting links 32 between the flanges 28, 30 of each of the links so that the links 24 and the connecting links 32 thus form the chain 22.
  • the connecting links 32 extend towards the chain guide 26.
  • the parts thus projecting from the connecting links 32 are capable of being housed in a U-shaped profile 40 formed in the chain guide 26 symmetrically with respect to the cutting plane.
  • said section 40 guides the connecting links 32 and therefore the chain 22, so that this movement takes place in the cutting plane.
  • each cutting tool 42, 44 has a sharp and curved end curving towards the outside of the cutting plane and defining a concave surface 46, 48 respectively.
  • a scraper 50 is arranged on either side of the chain 22 and of the chain guide 26.
  • This scraper 50 is fixed to the chain guide 26 for example by two screws 52, 54 arranged on each side of the guide 26, of such that there is play between the scraper 50 and the chain guide 26.
  • Two tension springs 56, 58 are arranged coaxially with said screws 52, 54 between the chain guide 26 and the scraper 50.
  • the two ends 50a, 50b of the scraper 50 located on each side of the cutting tools 42, 44 project towards the cutting plane by defining two convex surfaces 60, 62 complementary to said concave surfaces 46, 48.
  • the two springs 56, 58 make it possible to apply with a certain force the two ends 50a, 50b of the scraper against the cutting tools 42, 44. These two ends 50a, 50b can thus rid these tools of cutting waste during the passage of said tools on the scraper.
  • Cutting waste can no longer accumulate between the cutting tools as was the case in the prior art, and such a cutting device thus always works in good conditions. There is no longer any risk of chain blockage in the material to be cut.
  • the chain could be constituted by a flexible belt guided in translation by a chain guide and comprising cutting tools fixed on each side of said belt. This is why the word "chain” designates any equivalent system such as a belt.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP86401105A 1985-05-30 1986-05-26 Schneidvorrichtung für Kettensägen, insbesondere für das Schneiden von weichen, klebrigen oder verschmutzenden Materialien Expired EP0204610B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8508137 1985-05-30
FR8508137A FR2582556B1 (fr) 1985-05-30 1985-05-30 Dispositif de coupe pour tronconneuse, notamment pour decouper des materiaux tendres, collants ou encrassants

Publications (2)

Publication Number Publication Date
EP0204610A1 true EP0204610A1 (de) 1986-12-10
EP0204610B1 EP0204610B1 (de) 1989-03-15

Family

ID=9319695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86401105A Expired EP0204610B1 (de) 1985-05-30 1986-05-26 Schneidvorrichtung für Kettensägen, insbesondere für das Schneiden von weichen, klebrigen oder verschmutzenden Materialien

Country Status (5)

Country Link
US (1) US4727652A (de)
EP (1) EP0204610B1 (de)
JP (1) JPS61279423A (de)
DE (1) DE3662347D1 (de)
FR (1) FR2582556B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676215A5 (en) * 1988-07-07 1990-12-28 Gamma Stawag Ag Long life chain-saw blade
CN103802167A (zh) * 2012-11-11 2014-05-21 宋久林 非平行销轴锯链
US10350782B2 (en) 2012-03-02 2019-07-16 Robert Bosch Gmbh Method for producing at least one cutting unit segment of a cutting unit of a machine tool separating device

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5235885A (en) * 1991-10-23 1993-08-17 Kraft General Foods, Inc. Food slicing with continuous cleaning of endless band slicing blades
DE19858619C1 (de) * 1998-12-18 2000-08-24 Fortuna Spezialmaschinen Gmbh Schärf- oder Spaltmaschine zum Bearbeiten von nichtmetallischen flächigen Werkstücken
DE10145610B4 (de) * 2001-09-15 2011-05-05 Andreas Stihl Ag & Co. Schneidgarnitur einer Kettensäge
USD828417S1 (en) * 2017-05-04 2018-09-11 David L. Stubbs Chainsaw clearing tooth

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH371252A (de) * 1961-07-06 1963-08-15 Meier Willy Sägenkette
FR1548796A (de) * 1966-12-09 1968-12-06
US3613749A (en) * 1970-04-29 1971-10-19 Grady O Geurian Saw chain with dual cutters
DE2302610A1 (de) * 1973-01-19 1974-08-01 Ohler Fa Joh F Spanraeumvorrichtung fuer saegeblaetter von kaltkreissaegemaschinen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2921613A (en) * 1957-09-11 1960-01-19 Ernest H Silvey Chain saw bar
DE1185943B (de) * 1962-06-28 1965-01-21 Stumpp & Schuele Federn Und Me Scheibenschneidmaschine fuer Lebensmittel mit einem umlaufenden endlosen Schneidorgan
DE2445226C2 (de) * 1974-09-21 1983-01-05 Walter 7153 Weissach Stark Sägekette für Motorkettensägen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH371252A (de) * 1961-07-06 1963-08-15 Meier Willy Sägenkette
FR1548796A (de) * 1966-12-09 1968-12-06
US3613749A (en) * 1970-04-29 1971-10-19 Grady O Geurian Saw chain with dual cutters
DE2302610A1 (de) * 1973-01-19 1974-08-01 Ohler Fa Joh F Spanraeumvorrichtung fuer saegeblaetter von kaltkreissaegemaschinen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH676215A5 (en) * 1988-07-07 1990-12-28 Gamma Stawag Ag Long life chain-saw blade
US10350782B2 (en) 2012-03-02 2019-07-16 Robert Bosch Gmbh Method for producing at least one cutting unit segment of a cutting unit of a machine tool separating device
CN103802167A (zh) * 2012-11-11 2014-05-21 宋久林 非平行销轴锯链

Also Published As

Publication number Publication date
EP0204610B1 (de) 1989-03-15
US4727652A (en) 1988-03-01
JPH0558844B2 (de) 1993-08-27
FR2582556B1 (fr) 1989-08-04
DE3662347D1 (en) 1989-04-20
JPS61279423A (ja) 1986-12-10
FR2582556A1 (fr) 1986-12-05

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