Saw cutting blade
First Claim
1. A saw blade comprising:
- a blade body, having a primary cutting edge at the leading edge of the blade for cutting a kerf in a workpiece, debris being formed from workpiece material produced in forming the kerf, the primary cutting edge of the saw blade comprising a series of saw teeth, each saw tooth having a tip and an aft root, each saw tooth being in a row and having edges aligned in a plane to form a cutting surface and the aft roots being in line to form an aft root line, an Aft Body behind the primary cutting edge, the Aft Body having opposing faces with at least one cutout pattern, each cutout pattern having perimeter walls cut into the opposing faces of the Aft Body, the cutout pattern(s) being formed on opposite sides of the Aft Body, such cutout pattern(s) being designed to capture the debris, enhance removal of the debris from the kerf, and reduce friction between the blade body and the kerf as the kerf is formed.
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Accused Products
Abstract
A saw blade having blade body supporting a leading cutting edge for cutting through a workpiece. A force and motion are applied to drive the cutting edge against the work piece as the body of the saw blade is driven with a reciprocating, rotational or linear motion transverse to the applied direction of the force. The solid rectangular cross section of a saw blade is modified to improve its ability to cut through a workpiece. The body of the blade is characerized as having cut out areas distributed throughout the blade body to capture and remove the debris from the kerf. This improved cutting performance can be further enhanced by reducing the cross section of the body. Secondary cutting edges may also be incorporated around the perimeter of the cutouts and as part of the reduced geometry portion of the blade body.
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Citations
37 Claims
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1. A saw blade comprising:
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a blade body, having a primary cutting edge at the leading edge of the blade for cutting a kerf in a workpiece, debris being formed from workpiece material produced in forming the kerf, the primary cutting edge of the saw blade comprising a series of saw teeth, each saw tooth having a tip and an aft root, each saw tooth being in a row and having edges aligned in a plane to form a cutting surface and the aft roots being in line to form an aft root line, an Aft Body behind the primary cutting edge, the Aft Body having opposing faces with at least one cutout pattern, each cutout pattern having perimeter walls cut into the opposing faces of the Aft Body, the cutout pattern(s) being formed on opposite sides of the Aft Body, such cutout pattern(s) being designed to capture the debris, enhance removal of the debris from the kerf, and reduce friction between the blade body and the kerf as the kerf is formed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A saw blade comprising a blade body, the blade body having:
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a primary cutting edge at the leading edge of the blade for cutting a kerf in a workpiece, debris being formed from workpiece material produced in forming the kerf, and an Aft Body behind and integral with the cutting edge, the Aft Body having opposing faces with at least one cutout pattern formed in the opposite faces of the Aft Body, such cutout pattern(s) being designed to penetrate partially through the Aft Body, to capture the debris, enhance removal of the debris from the kerf, and reduce friction between the Aft Body and the kerf as the kerf is formed.
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21. A saw blade comprising:
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a blade body, the blade body having a primary cutting edge at the leading edge of the blade for cutting a kerf in a workpiece, debris being formed from workpiece material produced in forming the kerf, an Aft Body behind and integral with the cutting edge, the Aft Body having opposing faces with at least one cutout pattern formed in the Aft Body, such cutout pattern(s) being designed to penetrate completely through the Aft Body, to capture the debris, enhance removal of the debris from the kerf, and reduce friction between the Aft Body and the kerf as the kerf is formed.
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22. A cutting blade having a blade body comprising:
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a primary cutting edge at the leading edge of the body, and an Aft Body integral to and behind the primary cutting edge consisting of opposite body faces, the primary cutting edge comprising a sharpened leading edge and a wedge shaped region formed by the removal of blade material to form the sharpened leading edge ending in a back edge, the back edge of the wedge shaped region ending at the aft blade body, and the line formed by the back edge of the wedged region being referred to as the primary cutting edge aft root line, the Aft Body starting at the primary cutting edge aft root line behind and integral with the primary cutting edge having friction between the wall of the material being cut and the Aft Body, the Aft Body having at least one cutout pattern formed in the corresponding opposing faces of the Aft Body, such cutout pattern(s) being designed to reduce friction between the blade body and walls of the material being cut and to capture any debris that is formed to enhance removal of the debris from the cut region. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37)
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Specification