Patent ID: 9561600
Date: 2017-02-07
CPC Classifications: B27B,Y10T

Claim:
1. A cutting chain movable in a cutting direction over a guide bar, the guide bar having a straight portion and a nose portion, wherein the cutting chain comprises: at least one cutting link comprising a cutting portion, a depth gauge, and a space between the cutting portion and the depth gauge; and at least one bumper drive link immediately preceding the cutting link in the cutting direction and pivotally connected to the cutting link, wherein the bumper drive link comprises a tail and a body, wherein the tail of the bumper drive link comprises a bent portion, a straight portion, and a free space, the bent portion, the straight portion, and the free space of the tail being located on a top end of the bumper drive link, wherein the bent portion is oriented substantially perpendicular relative to a plane of the body of the bumper drive link; wherein the bent portion extends into the space between the cutting portion and the depth gauge of the cutting link; wherein the free space is provided between the bent portion and the straight portion of the tail, an outer most edge of the bent portion being inwardly located in relation to an outer most edge of the depth gauge relative to the guide bar while the cutting chain traverses the straight portion of the guide bar; and wherein the free space is substantially covered by the depth gauge of the cutting link while traversing the nose portion of the guide bar.