Metal cutting circular saw with integral sight window

• US 20050178011A1
• Filed: 04/11/2005
• Published: 08/18/2005
• Est. Priority Date: 04/06/2001
• Status: Active Grant

• Current Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Original Assignee: Black & Decker Incorporated (Stanley Black & Decker, Inc.)
• Inventors: Moore, Keith, Van Wambeke, Weston J., Sayles, Joel D.
• Granted Patent: US 7,219,434 B2
• Time in Patent Office: Days
• US Class Current: 30/391
• CPC Class Codes: B23D 45/16 Hand-held sawing devices with circular saw blades
• CPC Class Codes: B27B 9/00 Portable power-driven circular saws for manual operation details or components, e.g. handles, casings, of portable power-driven tools not particularly related to the operation performed B25F5/00
• CPC Class Codes: B27G 19/04 for manually-operated power-driven circular saws
• CPC Class Codes: Y10T 83/7734 With guard for tool
• CPC Class Codes: Y10T 83/828 With illuminating or viewing means for work

Abstract

A metal cutting circular saw is provided with an upper blade guard which includes a first sight window disposed in a first side surface and disposed in a plane angularly offset from a plane of the blade. The upper blade guard also includes a second sight window disposed in the second side surface of the upper blade guard. A light window is disposed in a front portion of the perimeter outer surface of the upper blade guard. The upper blade guard is made from metal and the first and second sight windows and the light window are integrally formed as a one-piece member. The saw shoe and lower blade guard are configured to minimize chip spray from contacting a user.

Claims

1. A circular saw, comprising:

a motor;

a blade drivingly attached to said motor;

an upper blade guard in partial covering relationship over said blade and including a perimeter outer surface disposed between first and second side surfaces, said upper blade guard including a first sight window disposed in said first side surface, and

a light window disposed in a front portion of said perimeter outer surface, wherein said light window includes an enlarged thickness portion generally positioned in line with a cutting plane of said blade.

2. A circular saw, comprising:

a motor;

a blade drivingly attached to said motor;

an upper blade guard in partial covering relationship over said blade, said upper blade guard having a perimeter outer surface disposed between first and second side surfaces; and

a sight window disposed in said first side surface of said upper blade guard, said sight window having a plurality of parallel slots positioned generally within a line of sight of an attack point of said blade.

3. The circular saw according to claim 2 wherein said first side surface of said upper blade guard is an assembly half portion generally adjacent said motor, said sight window being positioned generally at a lower forward corner of said assembly half portion.

4. A circular saw, comprising:

a motor;

a blade drivingly attached to said motor; and

an upper blade guard in partial covering relationship over said blade and including a perimeter outer surface disposed between first and second side surfaces, said upper blade guard including a first sight window disposed in said first side surface, said first sight window having a plurality of parallel slots positioned generally within a line of sight of an attack point of said blade, and including a light window disposed along a front edge portion of said perimeter outer surface.