Saw Blade

Patent metadata

Field	Value
Publication number	US-10189099-B2
Application number	US-201113281540-A
Country	US
Kind code	B2
Filing date	Oct 26, 2011
Priority date	Apr 22, 2010
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

A reciprocating saw blade for use with a reciprocating saw includes a body defining a longitudinal axis and an attachment portion. The attachment portion includes a tang and an aperture configured to couple to the reciprocating saw. The saw blade also includes a cutting portion formed on the body. The cutting portion includes a plurality of cutting teeth. Each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining a gullet, a relief surface extending from the tip and having a first end that is closer to the attachment portion and a second end that is further from the attachment portion, and a protrusion extending from the second end of the relief surface. The protrusion of each tooth inhibits a nail from entering the gullet and contacting the rake face of an adjacent tooth during cutting operations.

First claim

The invention claimed is:

1. A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade comprising:
a body defining a longitudinal axis;
an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw; and
a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip;
wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
wherein the tips of the plurality of cutting teeth define a first plane that is generally parallel to the longitudinal axis and the protrusions of the plurality of cutting teeth define a second plane that is generally parallel to the longitudinal axis, and wherein a distance between the first plane and the second plane is at most approximately 0.035 inches; and
wherein a distance between the protrusion of one cutting tooth and the tip of an adjacent cutting tooth, measured generally parallel to the longitudinal axis, is approximately 0.08 inches.

2. The reciprocating saw blade of claim 1 , wherein the distance between the first plane and the second plane is approximately 0.032 inches.

3. The reciprocating saw blade of claim 1 , wherein the reciprocating saw blade is configured to cut a work piece having a nail extending therethrough, and wherein the protrusion of each cutting tooth inhibits the nail from entering the gullet and contacting the rake face of an adjacent cutting tooth during cutting operations.

4. The reciprocating saw blade of claim 1 , wherein adjacent cutting teeth of the plurality of cutting teeth are separated by a pitch of approximately 0.2 inches.

5. The reciprocating saw blade of claim 1 , wherein the protrusion of each cutting tooth is generally rounded.

6. The reciprocating saw blade of claim 1 , wherein the relief surface of each cutting tooth includes a first end that is closer to the attachment portion and a second end that is further from the attachment portion, and wherein the tip of each cutting tooth is formed at the first end of the relief surface and the protrusion of each cutting tooth extends from the second end of the relief surface.

7. A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade comprising:
a body defining a longitudinal axis;
an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw; and
a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip, each cutting tooth defining an effective relief surface that extends from the tip and is tangent to the protrusion;
wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
wherein a distance between effective relief surfaces of adjacent cutting teeth is at most approximately 0.06 inches.

8. The reciprocating saw blade of claim 7 , wherein the distance between effective relief surfaces of adjacent cutting teeth is approximately 0.05 inches.

9. The reciprocating saw blade of claim 7 , wherein the tips of the plurality of cutting teeth define a plane that is generally parallel to the longitudinal axis, and wherein the effective relief surface of each cutting tooth intersects the plane at an angle of approximately 14.5 degrees.

10. The reciprocating saw blade of claim 7 , wherein the reciprocating saw blade is configured to cut a work piece having a nail extending therethrough, and wherein the protrusion of each cutting tooth inhibits the nail from entering the gullet and contacting the rake face of an adjacent cutting tooth during cutting operations.

11. The reciprocating saw blade of claim 7 , wherein adjacent cutting teeth of the plurality of cutting teeth are separated by a pitch of approximately 0.2 inches.

12. The reciprocating saw blade of claim 7 , wherein the protrusion of each cutting tooth is generally rounded.

13. The reciprocating saw blade of claim 7 , wherein the relief surface of each cutting tooth includes a first end that is closer to the attachment portion and a second end that is further from the attachment portion, and wherein the tip of each cutting tooth is formed at the first end of the relief surface and the protrusion of each cutting tooth extends from the second end of the relief surface.

14. The reciprocating saw blade of claim 13 , wherein the relief surface of each cutting tooth extends approximately 0.1 inches from the first end to the second end.

15. A reciprocating saw blade for use with a reciprocating saw, the reciprocating saw blade comprising:
a body defining a longitudinal axis;
an attachment portion coupled to the body, the attachment portion including a tang and an aperture configured to couple to the reciprocating saw, the attachment portion being angled relative to the longitudinal axis by a tang angle; and
a cutting portion formed on the body, the cutting portion including a plurality of cutting teeth and a plurality of gullets positioned between the plurality of cutting teeth, each cutting tooth including a tip, a rake face extending from the tip generally toward the longitudinal axis and at least partially defining one of the plurality of gullets, a relief surface extending from the tip, and a protrusion extending from an end of the relief surface opposite the tip, each cutting tooth defining an effective relief surface that extends from the tip and is tangent to the protrusion;
wherein each gullet includes a base, a first curved surface extending from the rake face of a corresponding cutting tooth to the base, and a second curved surface extending from the base to of an adjacent cutting tooth, and wherein the protrusion of each cutting tooth is located on the cutting tooth between the relief surface of the cutting tooth and the second curved surface of an adjacent gullet;
wherein the tips of the plurality of cutting teeth define a plane that is generally parallel to the longitudinal axis, wherein the relief surface of each cutting tooth intersects the plane at a relief angle and the effective relief surface of each cutting tooth intersects the plane at an effective relief angle, and wherein the effective relief angle has a value that is between a value of the tang ang

Assignees

• Butzen Robert W
• Kazda Austin J
• Schulz Andrew J
• Milwaukee Electric Tool Corp

Inventors

• Butzen Robert W
• Kazda Austin J
• Schulz Andrew J

Classifications

• B23D61/1265

  Reciprocating blades with teeth on the saw nose, e.g. plunge cutters · CPC title

• Y10T83/9353

  Including raker tooth group · CPC title

• B23D61/121 Primary

  Types of set; Variable teeth, e.g. variable in height or gullet depth; Varying pitch; Details of gullet · CPC title

• B23D61/123

  Details of saw blade body · CPC title

• Y10T83/9319

  Toothed blade or tooth therefor · CPC title