EP0710168A1 - Lame de scie a ruban a grumes pour la premiere transformation du bois et de ses derives - Google Patents
Lame de scie a ruban a grumes pour la premiere transformation du bois et de ses derivesInfo
- Publication number
- EP0710168A1 EP0710168A1 EP94922279A EP94922279A EP0710168A1 EP 0710168 A1 EP0710168 A1 EP 0710168A1 EP 94922279 A EP94922279 A EP 94922279A EP 94922279 A EP94922279 A EP 94922279A EP 0710168 A1 EP0710168 A1 EP 0710168A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- band saw
- saw blade
- teeth
- variable
- log band
- 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
Links
- 239000002023 wood Substances 0.000 title claims abstract description 11
- 230000003247 decreasing effect Effects 0.000 claims description 4
- 230000009466 transformation Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 description 4
- 241000287531 Psittacidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910001347 Stellite Inorganic materials 0.000 description 1
- 210000003323 beak Anatomy 0.000 description 1
- AHICWQREWHDHHF-UHFFFAOYSA-N chromium;cobalt;iron;manganese;methane;molybdenum;nickel;silicon;tungsten Chemical compound C.[Si].[Cr].[Mn].[Fe].[Co].[Ni].[Mo].[W] AHICWQREWHDHHF-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- B23D61/021—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
-
- 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
- B23D61/12—Straight saw blades; Strap saw blades
- B23D61/121—Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet
Definitions
- the invention relates to the first transformation of wood, that is to say the whole sawmill activity including the flow of logs on a band saw, as well as the resumption of its flows.
- band saw blades for woodworking are made of special steel of the cold-rolled hardened strip type and have different sections defined by width and thickness.
- a toothing is characterized by its shape, the most common being with projected chip, parrot, amstrong, gum, lying, its angles (angle of attack (a), angle beak (b), draft angle (c), its pitch (P), and its depth (f)).
- the band saw blade in its application to the first transformation of wood, consists of a succession of different or identical modules each comprising several teeth of variable characteristics determined according to all the technical criteria present, and in that in each module the part of the tooth located in front of the lowest point will be of variable shape (FV) and the part of the tooth located behind will be of constant shape (FC).
- FV variable shape
- FC constant shape
- the pitch of the toothing is not constant over the entire length of the blade, but has in each module an incrementally or decreasingly variable pitch.
- each module is determined by a number of teeth, a minimum and maximum pitch, a variation of the pitch between each tooth.
- FIG. 1 is a view illustrating the main characteristics of a saw blade toothing
- FIGS. 2 to 9 are views illustrating different embodiments of the teeth according to the invention. In order to make the object of the invention more concrete, it is now described in a nonlimiting manner illustrated in FIGS. 2 to 9.
- variable toothing of the bandsaw blades for cutting logs for the first processing of wood can be implemented in different ways.
- the blade (L1) has a certain number of modules (M1, M2 ...) which may each have a variable number of teeth (D).
- the blade (L2) illustrated in FIG. 3 has a different pitch (P1, P2, P3, P4, P5, P6, P7, ...) between each tooth (D).
- the blade (L3) illustrated in Figure 4 combines steps (P1 .... P7) and modules (M1 ?? M4) variable.
- the blade (L4) illustrated in FIG. 5 is made up of several modules (M1, M2 ”) each comprising a number of teeth (D) of identical shapes, but proportional to the variable pitch of each tooth.
- the blade (L5) illustrated in FIG. 6 consists of a succession of identical modules (M1, M2, M3) over its entire length, the module being able to be constituted by all the cases of figures listed by the present description.
- the blade (L6) illustrated in Figure 7 shows a number of variable teeth per module.
- the teeth may be as appropriate: identical form, but proportional to their pitch; of different shape, the shape being the result of the combination of the movement of one or two cams forming part of the kinematics of the sharpening machines.
- the part of the tooth located in front of the lowest point will be of variable shape (FV) and the part of the tooth located behind will be of constant shape (FC).
- the blade (L7) illustrated in FIG. 8 consists of several modules with increasing and decreasing opposite teeth or vice versa, of variable or identical shapes proportional to their pitch.
- the blade (L8) illustrated in Figure 9 consists of several modules with teeth of identical profile and shape established in a constant shape (FC), said teeth being separated from each other by a variable space (FV) growing as illustrated for example in the drawings.
- FC constant shape
- FV variable space
- the blade (L9) illustrated in Figure 10 shows teeth (F1, F2, F4, F5, F6) of different shape and profile.
- the pitch of the toothing can be constant, decreasing or increasing.
- the pitch of the teeth is adjusted so that the length of the blade corresponds to the length of a standard blade for band saws.
- the determination of the module takes into account different technical criteria such as wood species, wood heights, sawing and sharpening equipment used, the type of blades used (stellite, crushed, with carbide pads ).
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
- Scissors And Nippers (AREA)
- Nonmetal Cutting Devices (AREA)
- Undergarments, Swaddling Clothes, Handkerchiefs Or Underwear Materials (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9309307 | 1993-07-22 | ||
FR9309307A FR2707904B1 (fr) | 1993-07-22 | 1993-07-22 | Lame de scie à ruban alternative ou circulaire pour le travail du bois et de ses dérivés. |
PCT/FR1994/000905 WO1995003148A1 (fr) | 1993-07-22 | 1994-07-20 | Lame de scie a ruban a grumes pour la premiere transformation du bois et de ses derives |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0710168A1 true EP0710168A1 (fr) | 1996-05-08 |
EP0710168B1 EP0710168B1 (fr) | 1997-12-17 |
EP0710168B2 EP0710168B2 (fr) | 2003-01-29 |
Family
ID=9449728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94922279A Expired - Lifetime EP0710168B2 (fr) | 1993-07-22 | 1994-07-20 | Lame de scie a ruban a grumes pour la premiere transformation du bois et de ses derives |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0710168B2 (fr) |
AT (1) | ATE161209T1 (fr) |
CA (1) | CA2153872A1 (fr) |
DE (1) | DE69407417T3 (fr) |
ES (1) | ES2113117T3 (fr) |
FI (1) | FI106186B (fr) |
FR (1) | FR2707904B1 (fr) |
WO (1) | WO1995003148A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19739074B4 (de) * | 1997-09-08 | 2005-07-07 | WIKUS-Sägenfabrik Wilhelm H. Kullmann GmbH & Co. KG | Sägeblatt und Verfahren zu seiner Herstellung |
FR2876617B1 (fr) * | 2004-10-15 | 2008-05-30 | Psp Ind Sas Soc Par Actions Si | Lame de scie a denture progressive et a pas variable |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191322929A (en) * | 1913-10-10 | 1914-05-21 | Albert Rocour | Circular Saw Blades for Cutting Metals Cold. |
US1328982A (en) * | 1919-08-30 | 1920-01-27 | Bert L Calkins | Hacksaw-blade |
US2351737A (en) * | 1940-05-09 | 1944-06-20 | Arthur N Blum | Saw |
US2568870A (en) * | 1945-10-31 | 1951-09-25 | Lerned F Ronan | Saw |
US4270429A (en) * | 1980-01-28 | 1981-06-02 | International Paper Company | Attenuated vibration circular saw |
JPS58137520A (ja) * | 1982-01-13 | 1983-08-16 | Amada Co Ltd | 鋸刃 |
US5038653A (en) * | 1988-02-02 | 1991-08-13 | The Disston Company | Circular saw blade |
US5088358A (en) * | 1991-03-04 | 1992-02-18 | James Emter | Automatic dual-side saw blade grinder having common blade advancement and clamp actuator and method of using same |
DE9206000U1 (de) * | 1992-01-10 | 1992-07-30 | Wilhelm H. Kullmann WIKUS-Sägenfabrik, 3509 Spangenberg | Sägeblatt |
-
1993
- 1993-07-22 FR FR9309307A patent/FR2707904B1/fr not_active Expired - Fee Related
-
1994
- 1994-07-20 ES ES94922279T patent/ES2113117T3/es not_active Expired - Lifetime
- 1994-07-20 DE DE69407417T patent/DE69407417T3/de not_active Expired - Fee Related
- 1994-07-20 AT AT94922279T patent/ATE161209T1/de not_active IP Right Cessation
- 1994-07-20 CA CA002153872A patent/CA2153872A1/fr not_active Abandoned
- 1994-07-20 EP EP94922279A patent/EP0710168B2/fr not_active Expired - Lifetime
- 1994-07-20 WO PCT/FR1994/000905 patent/WO1995003148A1/fr active IP Right Grant
-
1995
- 1995-07-31 FI FI953650A patent/FI106186B/fi active
Non-Patent Citations (1)
Title |
---|
See references of WO9503148A1 * |
Also Published As
Publication number | Publication date |
---|---|
ES2113117T3 (es) | 1998-04-16 |
ATE161209T1 (de) | 1998-01-15 |
FI106186B (fi) | 2000-12-15 |
DE69407417D1 (de) | 1998-01-29 |
DE69407417T2 (de) | 1998-04-09 |
EP0710168B1 (fr) | 1997-12-17 |
FR2707904A1 (fr) | 1995-01-27 |
FI953650A0 (fi) | 1995-07-31 |
DE69407417T3 (de) | 2003-12-24 |
EP0710168B2 (fr) | 2003-01-29 |
FI953650A (fi) | 1995-07-31 |
CA2153872A1 (fr) | 1995-02-02 |
WO1995003148A1 (fr) | 1995-02-02 |
FR2707904B1 (fr) | 1995-09-29 |
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