Chipper chain and motor-driven chain saw having a chipper chain

A chipper chain for a motor-driven chain saw comprising:

• a plurality of drive links each having a drive projection;
• a plurality of connecting links;
• a plurality of cutting links each having an upper cutting blade and a depth limiter leading said upper cutting blade;
• a plurality of pivot pins articulately interconnecting said drive links, said connecting links and said cutting links;
• said chipper chain defining a longitudinal axis and having a maximum width (A) determined by said upper cutting blades;
• said chipper chain having a maximum height (C) being measured perpendicular to said longitudinal axis from said drive projection to the upper cutting blade and an average divide (T) determined from the average of the distances (T1, T2) between mutually adjacent pivot pins of each two successive divides;
• a product of said maximum width (A), said maximum height (C) and said average divide (T) lies in a range between 275 mm3 inclusively and 406 mm3 inclusively;
• wherein
• said average divide (T) is ¼″ (=6.35 mm);
• said maximum width (A) lies between 4.2 mm inclusively and 5.2 mm inclusively;
• and,
• said maximum height (C) lies between 10.3 mm inclusively and 12.3 mm inclusively.

A motor-driven chain saw comprising:

• a chipper chain having a plurality of drive links each having a drive projection, a plurality of connecting links;
• and,
• a plurality of cutting links each having an upper cutting blade and a depth limiter leading said upper cutting blade;
• a plurality of pivot pins articulately interconnecting said drive links, said connecting links and said cutting links;
• said chipper chain defining a longitudinal axis and having a maximum width (A) determined by said upper cutting blades;
• said chipper chain having a maximum height (C) being measured perpendicular to said longitudinal axis from said drive projection to the upper cutting blade and an average divide (T) determined from the average of the distances (T1, T2) between mutually adjacent pivot pins of each two successive divides;
• a product of said maximum width (A), said maximum height (C) and said average divide (T) lies in a range between 275 mm3 inclusively and 406 mm3 inclusively;
• and,
• said motor-driven chain saw having a drive power of ≤1.0 kW.

A motor-driven chain saw comprising:

• a chipper chain having a plurality of drive links each having a drive projection, a plurality of connecting links;
• and,
• a plurality of cutting links each having an upper cutting blade and a depth limiter leading said upper cutting blade;
• a plurality of pivot pins articulately interconnecting said drive links, said connecting links and said cutting links;
• said chipper chain defining a longitudinal axis and having a maximum width (A) determined by said upper cutting blades;
• said chipper chain having a maximum height (C) being measured perpendicular to said longitudinal axis from said drive projection to the upper cutting blade and an average divide (T) determined from the average of the distances (T1, T2) between mutually adjacent pivot pins of each two successive divides;
• a product of said maximum width (A), said maximum height (C) and said average divide (T) lies in a range between 275 mm3 inclusively and 406 mm3 inclusively;
• said motor-driven chain saw having a drive power of ≤1.0 kW;
• said chipper chain having a maximum circulating speed (v) lying in a range between 10 m/s inclusively to 16 m/s inclusively;
• a guide bar having a cutting length (L) of between 20 cm and 35 cm;
• and,
• said chipper chain being arranged on said guide bar and being configured to circulate around said guide bar.