Patent ID: 9162298
Filing Date: 2015-10-20
Classification: B23D

Abstract:
1. A laser alignment device installed in a circular saw comprising a saw blade and a blade guard partially surrounding said saw blade, said laser alignment device comprising: a base adapted to be affixed to said blade guard; a laser module comprising a retaining seat pivotally mounted to said base, an auxiliary seat pivotally mounted to said retaining seat, and a laser beam generator disposed in said auxiliary seat; said retaining seat having a first elongated slot defined therein, and said auxiliary seat having a second elongated slot defined therein; a first adjustment unit comprising a first knob and a first eccentric shaft, said first knob being rotatably mounted to said base, wherein said first eccentric shaft includes one end thereof eccentrically and fixedly connected to said first knob, and an opposite end thereof coupled to said first elongated slot of said retaining seat; and a second adjustment unit comprising a second knob and a second eccentric shaft, said second knob being rotatably mounted to said retaining seat, wherein said second eccentric shaft includes one end thereof eccentrically and fixedly connected to said second knob, and an opposite end thereof coupled to said second elongated slot of said auxiliary seat.