Saw blade for preparing wood and other materials
First Claim
1. A circular saw blade, particularly for cutting wood and the like material, having teeth,each teeth including a hard metal insert (12), forming the cutting edge and secured to a tooth body,the insert being characterized in that:
- the face (2) of the insert (12) has an angle of intersection (δ
) of less than 60°
but at least 40°
, with respect to a tangent (T) to said cutting edge (6);
the insert (12) is substantially in form of a parallelogram, with two long parallel straight sides and two short sides, the short side opposite to said cutting edge being formed with a concave, curved portion;
and wherein the teeth are formed with a curved section (3) adjoining the concave curved portion of the insert, and continuing smoothly into the base (4) or root between the teeth.
1 Assignment
0 Petitions
Accused Products
Abstract
The teeth of the saw blade (1) intended for preparing wood comprise a cutting edge (2) beginning at the tip (6) and forming an angle of intersection (δ) of 40°-55°. Adjoining the cutting edge (2) at the tooth face there is a cut-back, circular curved section (3). This curved section (3) continues at the bottom into a rounded base (4) between adjacent teeth and then continues into the edge (5) bordering the gap between the teeth, and on into the back of the next tooth.
A considerably increased cutting performance is achieved with a saw blade of this kind, since a paring action is effected, and the shavings can roll away easily.
Saw blades equipped with this kind of teeth can be made both as circular saw blades and also as bandsaw blades which are moved in a straight line.
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Citations
13 Claims
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1. A circular saw blade, particularly for cutting wood and the like material, having teeth,
each teeth including a hard metal insert (12), forming the cutting edge and secured to a tooth body, the insert being characterized in that: -
the face (2) of the insert (12) has an angle of intersection (δ
) of less than 60°
but at least 40°
, with respect to a tangent (T) to said cutting edge (6);the insert (12) is substantially in form of a parallelogram, with two long parallel straight sides and two short sides, the short side opposite to said cutting edge being formed with a concave, curved portion; and wherein the teeth are formed with a curved section (3) adjoining the concave curved portion of the insert, and continuing smoothly into the base (4) or root between the teeth. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. For combination with a circular saw blade,
a hard metal insert for the teeth of the saw blade wherein said insert is formed substantially as a parallelogram with two straight parallel sides and two short sides, one of the short sides including a concave curved portion, and a cutting edge, said cutting edge being located at the other end of said long side.
Specification