Patent ID: 6860183
Filing Date: 2005-03-01
Classification: B23D,B27B,Y10T

Abstract:
1. A circular saw comprising a base, a saw arm, and an angle adjusting device for adjusting an inclined angle of the saw arm, wherein: the base having a side provided with a rotor; the saw arm is mounted on the rotor of the base; the angle adjusting device is mounted on the base and includes a rod unit, a first gear unit, a second gear unit, and a positioning unit, wherein: the rod unit includes an outer rod, and an inner rod mounted in the outer rod; the first gear unit includes a first drive gear secured on the outer rod, and a first driven gear meshing with the first drive gear; the second gear unit includes a second drive gear rotated by a driving force supplied by the first driven gear of the first gear unit, and a second driven gear secured on the rotor for rotating the rotor and meshing with the second drive gear; and the positioning unit includes a mounting tube, and a positioning bolt, the mounting tube has a first end secured on the inner rod, the positioning bolt has a first end locked on a second end of the mounting tube and a second end protruded outward from the rotor, and the positioning unit further includes a locking nut screwed on the second end of the positioning bolt.