Blade for a reciprocating saw

Patent metadata

Field	Value
Publication number	US-9643267-B2
Application number	US-201313783003-A
Country	US
Kind code	B2
Filing date	Mar 1, 2013
Priority date	Mar 1, 2012
Publication date	May 9, 2017
Grant date	May 9, 2017

Abstract

A blade for use with a reciprocating saw includes an attachment portion configured to couple to the reciprocating saw and a body extending from the attachment portion. The body includes a first portion, a tip portion, a second portion extending from the first portion to the tip portion, and a cutting edge. The second portion has a height less than a height of the first portion. The blade also includes a blunt tip formed at a distal end of the tip portion and a plurality of gullets formed in the second portion. At least one of the gullets has a generally trapezoidal shape.

First claim

What is claimed is:

1. A blade for use with a reciprocating saw, the blade comprising:
an attachment portion configured to couple to the reciprocating saw;
a body extending from the attachment portion and including a first portion, a tip portion, a second portion extending from the first portion to the tip portion, and a cutting edge, wherein the second portion has a height less than a height of the first portion;
a blunt tip formed at a distal end of the tip portion; and
a plurality of gullets formed in the second portion, at least one of the gullets having a generally trapezoidal shape;
wherein at least one of the plurality of gullets defines a first angle between about 45 degrees and about 85 degrees measured between the cutting edge and a front edge of the at least one gullet, and wherein the at least one gullet defines a second angle between about 45 degrees and about 85 degrees measured between the cutting edge and a rear edge of the at least one gullet.

2. The blade of claim 1 , wherein at least one of the gullets is spaced from an adjacent gullet by the cutting edge.

3. The blade of claim 1 , wherein the cutting edge is substantially flat.

4. The blade of claim 1 , wherein the cutting edge extends across the first portion and the second portion of the blade.

5. The blade of claim 4 , wherein the first portion is substantially toothless.

6. The blade of claim 1 , wherein the plurality of gullets includes an upper gullet formed in an upper surface of the second portion and a lower gullet formed in a lower surface of the second portion.

7. The blade of claim 6 , wherein the upper gullet and the lower gullet are substantially aligned in a direction parallel to the cutting edge.

8. The blade of claim 6 , wherein the upper gullet and the lower gullet are offset from one another in a direction parallel to the cutting edge.

9. The blade of claim 1 , wherein the tip portion includes a tip length between about 0.062 inches and about 0.3 inches.

10. The blade of claim 1 , wherein the tip portion includes a tip length between about 0.3 inches and about 0.38 inches.

11. The blade of claim 1 , wherein the height of the first portion is between about 0.625 inches and about 1.0 inches, measured substantially perpendicular to the cutting edge.

12. The blade of claim 1 , wherein the height of the second portion is between about 0.18 inches and about 0.25 inches, measured substantially perpendicular to the cutting edge.

13. The blade of claim 1 , wherein the tip portion includes a tip height between about 0.062 inches and about 0.125 inches measured substantially perpendicular to the cutting edge.

14. The blade of claim 1 , wherein the tip portion includes a tip height between about 0.18 inches and about 0.25 inches measured substantially perpendicular to the cutting edge.

15. The blade of claim 1 , wherein the blade includes an overall length between about 2.4 inches and about 3.25 inches, measured substantially parallel to the cutting edge from a proximal edge of the attachment portion to the blunt tip.

16. The blade of claim 1 , wherein the blunt tip includes a beveled portion.

17. A blade for use with a reciprocating saw, the blade comprising:
an attachment portion configured to couple to the reciprocating saw;
a body extending from the attachment portion and including a first portion, a tip portion, and a second portion extending from the first portion to the tip portion, wherein the second portion has a height less than a height of the first portion;
a blunt tip formed at a distal end of the tip portion; and
a plurality of teeth arranged along the second portion, at least one of the teeth including a tooth length defining a cutting edge of the blade,
wherein the tooth length is between about 0.125 inches and about 0.325 inches;
wherein at least one of the plurality of teeth defines a first angle between about 45 degrees and about 85 degrees, measured between the cutting edge and a front edge of the at least one tooth, and wherein the at least one tooth defines a second angle between about 45 degrees and about 85 degrees, measured between the cutting edge and a rear edge of the at least one tooth.

18. The blade of claim 17 , wherein the tooth length is about 0.2 inches.

19. The blade of claim 17 , wherein the tooth length is about 0.26 inches.

20. The blade of claim 17 , wherein the plurality of teeth includes an upper tooth and a lower tooth.

21. The blade of claim 20 , wherein the upper tooth and the lower tooth are substantially aligned in a direction substantially parallel to the cutting edge.

22. The blade of claim 20 , wherein the upper tooth and the lower tooth are offset from one another in a direction substantially parallel to the cutting edge.

23. The blade of claim 17 , at least one of the plurality of teeth includes a tooth height of about 0.062 inches, measured substantially perpendicular to the cutting edge.

24. The blade of claim 17 , wherein the first angle is about 65 degrees and the second angle is about 65 degrees.

25. The blade of claim 17 , wherein the blade includes an overall length of about 2.5 inches, measured parallel to the cutting edge from a proximal edge of the attachment portion to the blunt tip.

26. A blade for use with a reciprocating saw, the blade comprising:
an attachment portion configured to couple to the reciprocating saw;
a body extending from the attachment portion and including a first portion, a tip portion, and a second portion extending from the first portion to the tip portion, wherein the second portion has a height less than a height of the first portion; and
a plurality of gullets formed in the second portion, at least one of the gullets spaced from an adjacent gullet by a substantially flat cutting edge;
wherein at least one of the plurality of gullets defines a first angle between about 45 degrees and about 85 degrees, measured between the cutting edge and a front edge of the at least one gullet, and wherein the at least one tooth defines a second angle between about 45 degrees and about 85 degrees, measured between the cutting edge and a rear edge of the at least one gullet.

27. The blade of claim 26 , wherein the plurality of gullets includes an upper gullet formed in an upper surface of the second portion and a lower gullet formed in a lower surface of the second portion.

28. The blade of claim 27 , wherein the upper gullet and the lower gullet are substantially aligned in a direction substantially parallel to the cutting edge.

29. The blade of claim 27 , wherein the upper gullet and the lower gullet are offset from one another in a direction substantially parallel to the cutting edge.

30. The blade of claim 26 , wherein at least one of the plurality of gullets includes two rounded corners, the two rounded corners including a radius between about 0.01 and about 0.04 inches.

31. The blade of claim 26 , wherein at least one of the plurality of gullets includes a gullet depth between about 0.035 and about 0.080 inches.

32. The blade of claim 26 , wherein the height of the first portion is between about 0.625 inches and about 1.0 inches, measured substantially perpendicular to the cutting edge.

33. The blade of claim 26 , wherein the height of the second portion is between about 0.18 inches and about 0

Assignees

• Milwaukee Electric Tool Corp

Inventors

• Kazda Austin J
• Malloy Ryan J
• Butzen Robert W
• Schulz Andrew J
• Neitzell Roger D
• Mccool Courtney D

Classifications

• B23D61/121

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

• Y10T83/9454

  Reciprocable type · CPC title

• Y10T83/9319

  Toothed blade or tooth therefor · CPC title

• B23D61/128 Primary

  Sabre saw blades · CPC title

• B23D61/123

  Details of saw blade body · CPC title