Patent ID: 6393957
Filing Date: 2002-05-28
Classification: B23D,Y10T

Abstract:
A scroll saw comprising:a) a housing; b) a rocker member including a middle portion pivotally secured in said housing with a pivot shaft, and including two ends; c) a first and a second rocker levers each pivotally secured in said housing with a pivot axle, said first rocker lever being disposed above said second rocker lever, said first and said second rocker levers each including a leg laterally extended outward therefrom and having a free end and each including an extension extended therefrom and having a free end, d) a saw blade including two ends pivotally secured between said free ends of said legs of said first and said second rocker levers, for moving up and down in a reciprocating action with said free ends of said legs of said first and said second rocker levers; e) a first and a second links pivotally secured between said ends of said rocker member and said free ends of said extensions of said first and said second rocker levers respectively for forcing said first and said second rocker levers to rotate about said pivot axles respectively when said rocker member is rotated about said pivot shaft; and f) oscillating means for oscillating said saw blade to move in a reciprocating action via said rocker member and said first and said second rocker levers and said first and said second links, said oscillating means including: i) a beam having a first end pivotally secured to said first link, ii) a motor including a spindle, iii) a follower secured to said spindle and rotated in concert with said spindle, and iv) a bar coupled between said follower and said beam for coupling said motor to said beam and to oscillate said beam and said first and said second links.