TODAY’S PATENT – COMPACT CHAINSAW
The COMPACT CHAINSAW was invented by Honsho Masato (Himeji), Hanahusa Toru (Himeji) on 28th February 1989, bearing the patent number US4807366A.
The present invention relates to a compact chain saw suitable for cutting relatively hard synthetic resin materials, metal materials, lightweight concrete materials and the like.
A compact chain saw capable of cutting relatively hard materials and suitable for field work having a saw chain with cutting links each provided with a plurality of teeth having cutting edges thereon and driving notches provided on base portions of the cutting links to be held and pivotally supported by pairs of side links. The cutting edges are displaced in the lateral direction with the base portions of the cutting links in sliding contact with bottom portions (inner peripheral edges) of the guide grooves, and the pairs of side links riding on both side edges of the guide grooves, whereby the saw chain being rotatingly driven is restricted from pivot action and side-run phenomenon during cutting.