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Saw blade

  • US 7,661,347 B2
  • Filed: 10/09/2003
  • Issued: 02/16/2010
  • Est. Priority Date: 10/10/2002
  • Status: Active Grant
First Claim
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1. A saw blade provided with numerous cutting teeth for cutting a workpiece at appropriate pitches, the saw blade comprising:

  • left and right set teeth, which are set in a lateral direction, as viewed in a cutting direction of the cutting teeth;

    wherein each of the left and right set teeth is a dovetail shaped set tooth having a tooth tip which is gradually enlarged in the lateral direction in addition to being set, each of the left teeth having a left side surface at the dovetail shaped portion and each of the right teeth having a right side surface at the dovetail shaped portion, so that each inclination angle of the left side surface and the right side surface is increased as a result of both the dovetail shape and set of the tooth tip; and

    a straight tooth, which is not set in the lateral direction, as viewed in the cutting direction of the cutting teeth,wherein the straight tooth including a dovetail shaped straight tooth having a tooth tip which is gradually enlarged in the lateral direction, andwherein an upper surface of each tooth, including the tooth tip, defines a planar inclined surface.

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