Circular saw blade and method

• US 6,065,370 A
• Filed: 03/24/1998
• Issued: 05/23/2000
• Est. Priority Date: 09/26/1995
• Status: Expired due to Term

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Achterberg, Nicholas E., Curtsinger, John R.
• Primary Examiner(s): Rada, Rinaldi I.
• Assistant Examiner(s): Choi, Stephen
• Application Number:
  US09/046,819
• Time in Patent Office: 791 Days
• Field of Search: 76/112, 76/104.1, 83/835, 83/836, 83/837, 83/838, 83/839, 83/840, 83/841, 83/842, 83/843, 83/846, 83/848, 83/849, 83/850, 83/851, 83/852, 83/853, 83/854, 83/855, 83/676, 125/15
• US Class Current: 76/112
• CPC Class Codes: B23D 61/025 Details of saw blade body
• CPC Class Codes: B23D 61/04 with inserted saw teeth the teeth being individually inserted
• CPC Class Codes: B23D 65/00 Making tools for sawing machines or sawing devices for use in cutting any kind of material
• CPC Class Codes: Y10T 83/9319 Toothed blade or tooth therefor
• CPC Class Codes: Y10T 83/9403 Disc type

Abstract

A saw blade is stamped with a circumferential edge. At least one gullet and shoulder are formed in the circumferential edge. Likewise, a tooth pocket is formed in the circumferential edge. The tooth pocket is defined by a wall, generally radial to circle, on the shoulder, and a shelf substantially perpendicular to the wall. A tooth is secured, ordinarily by brazing, in the pocket such that a portion of the shelf extends beyond the front face of the tooth towards the gullet so that the tooth can be brazed along its entire lateral edge such that resultant forces in the tooth are transmitted to the body of the blade. After the tooth is positioned into the tooth pocket, the tooth, as well as a projection of the blade shoulder, are ground off so that the tooth and shoulder are flush with one another. Thus, the tooth longitudinal edge is in complete contact with the shoulder wall maximizing its strength.

Claims

1. A method of manufacturing a saw blade comprising:

stamping a blank having an overall circular shape with a circumferential edge having at least one gullet, an adjacent tooth pocket defining a wall and a shelf adjacent said wall, and a projection adjacent said tooth pocket, said projection having a curved surface defined by a desired radius;

providing a tooth;

positioning said tooth in said tooth pocket such that said shelf extends beyond said tooth;

securing said tooth to said blank such that said tooth is secured with said wall and said shelf;

grinding said tooth and blank.

2. The method according to claim 1, wherein said projection being ground with the tooth and becoming flush with the tooth during said grinding step.

3. The method according to claim 1, wherein said at least one gullet having a linear base.

4. The method according to claim 1, further comprising brazing said tooth to said blank.

5. The method according to claim 1 providing a recess in said circumferential edge adjacent said tooth pocket.

6. The method according to claim 1 during stamping, forming a plurality of gullets and tooth pockets.

7. The method according to claim 1 during stamping, forming an expansion slot continuous with said gullet, said expansion slot having a neck and an elliptical or oval shaped body.