Patent ID: 6708411
Filing Date: 2004-03-23
Classification: B27B,B27G

Abstract:
A circular saw capable of cutting a workpiece at a generally right-angled corner formed between the workpiece and a structure, the circular saw comprising:a saw blade assembly including a motor on a rear side thereof and a saw blade on a front side thereof, the saw blade having a center plane therethrough and being adapted so as to be rotated by the motor; a generally rectangular base plate having a front edge proximal to the saw blade and distal to the motor and a recess provided in the front edge through which the saw blade protrudes below the base plate; and a plurality of connecting shafts having a common axis extending in parallel to both the center plane of the saw blade and the front edge of the base plate, the connecting shafts attaching the saw blade assembly to the base plate such that the saw blade assembly is tiltable toward the rear side about the common axis of the connecting shafts, thereby causing at least a portion of the saw blade protruding below the base plate to pivot to the front side, wherein when the saw blade assembly is positioned to hold the saw blade at a right angle relative to the base plate, the axis of the connecting shafts is spaced apart from the center plane toward the motor by a predetermined distance, wherein the location of the common axis of the connecting shafts is selected such that when the saw blade assembly is maximally tilted to the rear side, a predetermined amount of clearance is created between the vertical plane located on the front edge of the base plate and the forwardmost part of the saw blade assembly, thus effectively preventing interference of the saw blade assembly with a structure forming a corner with the workpiece.