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US 6,314,854 B1Granted
Saw blades with convex ground saw tooth flanks
AssigneeRoehm GmbH Chemische Fabrik
InventorsHeinz Fritz, Otmar Riedel
Life of this patent
Estimating the term…
Abstract
A saw blade has teeth which are located on a carrier blade. Saw teeth flanks are curved and convex. A transition point between a cutting edge of the saw tooth and the curved convex saw tooth flank is such that a spacing distance between a radial center of the saw tooth flank and a radial plane of symmetry of the saw tooth is greater than a spacing distance between the transition point and the plane of symmetry.
Claims20
A saw blade comprising:
- a carrier blade having an outer edge;
- and
- at least one saw tooth mounted on the carrier blade at one end, said saw tooth having a straight cutting edge on an opposite end, said saw tooth also having convexly curved flanks positioned on both lateral sides of a plane of symmetry passing through the saw tooth and the carrier blade, said flanks extending more than halfway along both lateral sides from the one end of the saw tooth towards the cutting edge on the opposite end of the saw tooth, said cutting edge meeting with each of the flanks at a transition point;
- wherein a first spacing distance between a radial center of each of the flanks and the plane of symmetry is greater than a second spacing distance between the transition point and the plane of symmetry, said second spacing distance being greater than a third spacing distance between the outer edge of the carrier blade and the plane of symmetry;
- and
- wherein said straight cutting edge has a tetragonally trapezoidal cross section which is symmetrical with respect to the plane of symmetry.
3 more elements
A saw blade comprising:
- a carrier blade having an outer edge;
- and
- at least one saw tooth mounted on the carrier blade at one end, said saw tooth having a straight cutting edge on an opposite end, said saw tooth also having convexly curved flanks positioned on both lateral sides of a plane of symmetry passing through the saw tooth and the carrier blade, said flanks extending more than halfway along both lateral sides from the one end of the saw tooth towards the cutting edge on the opposite end of the saw tooth, said cutting edge meeting with each of the flanks at a transition point;
- wherein a first spacing distance between a radial center of each of the flanks and the plane of symmetry is greater than a second spacing distance between the transition point and the plane of symmetry, said second spacing distance being greater than a third spacing distance between the outer edge of the carrier blade and the plane of symmetry;
- and
- wherein said straight cutting edge has a triangular cross section which is asymmetrical with respect to the plane of symmetry.
3 more elements
A saw blade comprising:
- a carrier blade having an outer edge;
- and
- at least one saw tooth mounted on the carrier blade at one end, said saw tooth having a convexly curved cutting edge on an opposite end, said saw tooth also having convexly curved flanks positioned on both lateral sides of a plane of symmetry passing through the saw tooth and the carrier blade, said flanks extending more than halfway along both lateral sides from the one end of the saw tooth towards the cutting edge on the opposite end of the saw tooth, said cutting edge meeting with each of the flanks at a transition point;
- wherein a first spacing distance between a radial center of each of the flanks and the plane of symmetry is greater than a second spacing distance between the transition point and the plane of symmetry, said second spacing distance being greater than a third spacing distance between the outer edge of the carrier blade and the plane of symmetry;
- and
- wherein said convexly curved cutting edge has a hyperbolic cross section which is asymmetrical with respect to the plane of symmetry.
3 more elements
A saw blade comprising:
- a carrier blade having an outer edge;
- and
- at least one saw tooth mounted on the carrier blade at one end, said saw tooth having a convexly curved cutting edge on an opposite end, said saw tooth also having convexly curved flanks positioned on both lateral sides of a plane of symmetry passing through the saw tooth and the carrier blade, said flanks extending more than halfway along both lateral sides from the one end of the saw tooth towards the cutting edge on the opposite end of the saw tooth, said cutting edge meeting with each of the flanks at a transition point;
- wherein a first spacing distance between a radial center of each of the flanks and the plane of symmetry is greater than a second spacing distance between the transition point and the plane of symmetry, said second spacing distance being greater than a third spacing distance between the outer edge of the carrier blade and the plane of symmetry;
- and
- wherein said convexly curved cutting edge has a parabolic cross section which is asymmetrical with respect to the plane of symmetry.
3 more elements
Dependencies are inferred from the claim text.