LJUDDEMPAD STANGANORDNING FOR VERKTYG

摘要

The sound proofing in the case of a drill column is effected by damping material (7) in recesses over the entire length (A) of the rod body (2). The edges (9) of the rod project beyond the areas with the damping material (7) and form a wear protection for the damping material. Considerable sound proofing is obtained due to the arrangement of the damping material over the entire length of the rod body, and drills sound-proofed in this way have a long life with low weight and cost-effective manufacture due to the wear protection with the edges (9).