Saw chain for a power-driven chain saw

Details Saw chain for a power-driven chain saw Saw chain for a power-driven chain saw

B - Operations, Transporting

27

B

143/74

B27B 33/14 (2006.01)

Patent

CA 1195211

Abstract of the Disclosure The invention is directed to a saw chain for a power- driven chain saw. The saw chain includes a plurality of cutting links, a plurality of connecting links and a plurality of driving links. The links are interconnected by rivets to define the saw chain. The cutting links include a cutting tooth and a rearward foot defining a tilt edge. The cutting link tilts about the tilt edge when the cutting tooth penetrates the wood to be cut. In tilting about the tilt edge, the cutting edge of the cutting tooth is raised from a first elevation to a second elevation and the difference between these elevations is the tilt displacement. The tilt edge lies in a vertical plane which is perpendicular to a traverse plane containing the axes defined by the forward and rearward openings for the linkage rivets connecting the cutting link to the rest of the saw chain. The tilt edge is formed on the rearward foot at a location thereon such that the vertical plane lies within the forward half of the cutting tooth there- by reducing the tilt displacement to a predetermined magnitude. Accordingly, during the cutting operation of the saw chain, the tilt displacement is small and the cutting tooth does not draw itself into the wood to too great an extent where- by a more uniform cutting action by the cutting teeth of the cutting links is achieved and vibration of the saw chain is reduced.

431869

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