Patent ID: 6837138
Filing Date: 2005-01-04
Classification: B27B,Y10T

Abstract:
1. A saw chain for a motor-driven work apparatus including a chain saw and a harvester, the saw chain defining a longitudinal direction and a running direction and said saw chain comprising: a plurality of side connecting links and a plurality of center drive links arranged between said side connecting links; each of said links having a flat base body and a leading rivet opening and a trailing rivet opening and each rivet opening defining an axis; the respective axes of the leading and trailing rivet openings of each drive link being at a spacing (b) from each other; a plurality of rivets extending through said rivet openings for pivotally interconnecting said links; a portion of said connecting links being configured as cutting links; each of said cutting links having a cutting tooth formed on the base body thereof on a first end of the cutting link with said cutting tooth extending in said longitudinal direction of said saw chain; each of said cutting links having forward and rearward running surfaces on a second end thereof lying opposite said first side; said forward running surface being approximately at the elevation of said leading rivet opening and said rearward running surface being approximately at the elevation of said trailing rivet opening; said rearward running surface being configured to be extended in a direction opposite to said running direction; each of said connecting links having a first radius defining the maximum distance from the axis of the leading rivet opening thereof to the forward region of the connecting link which forward region faces toward the forward running surface and which forward region lies in said running direction; each of said connecting links having a second radius defining the maximum distance from the axis of the trailing rivet opening of the next adjacent connecting link in said running direction to the rearward region of the connecting link which rearward region faces toward the rearward running surface and which rearward region lies opposite to said running direction; and, said second radius being greater than said first radius and the sum of said first and second radii corresponding approximately to said spacing (b).