A novel saw chain, including a plurality of transmission pieces, a plurality of rebound transmission pieces, a plurality of cutters, a plurality of connecting pieces, and a plurality of pin shafts. The product of the average pitch between every two adjacent pin shafts in the saw chain, the maximum height of the saw chain, and the maximum thickness of the saw chain is 150-275 mm3. According to the novel saw chain, the size of the saw chain is reduced, energy consumption of the saw chain is effectively reduced, and the standby time of a lithium battery or a gasoline engine is effectively prolonged.

A saw chain includes connecting links and drive links that are mutually connected by rivets in an articulated manner about rivet axes. The rivets project through at least one rivet opening of one connecting link and through a rivet opening of a drive link. At least one rivet has, on one end face thereof, a depression having a depression edge and a depression base surrounded by the depression edge. The distance of the depression edge from a central plane of the saw chain increases at an increasing radial distance from the rivet axis. The distance (e) of the base from the central plane does not increase at any point of the base at an increasing radial distance from the rivet axis. A greatest distance (a) of the base from the rivet axis corresponds to 50% to 100% of half the core diameter (d) of the rivet.

A saw chain includes connecting links and drive links that are mutually connected by rivets in an articulated manner about rivet axes. The rivets project through at least one rivet opening of one connecting link and through a rivet opening of a drive link. At least one rivet has, on one end face thereof, a depression having a depression edge and a depression base surrounded by the depression edge. The distance of the depression edge from a central plane of the saw chain increases at an increasing radial distance from the rivet axis. The distance (e) of the base from the central plane does not increase at any point of the base at an increasing radial distance from the rivet axis. A greatest distance (a) of the base from the rivet axis corresponds to 50% to 100% of half the core diameter (d) of the rivet.

A drive link for a sawchain is disclosed wherein the drive link has a top side which faces away from an opening plane defined by the respective axes of the rivet openings and extends at least partially at the drive link apex. A functional surface and a contact surface spaced apart from the functional surface are provided on the top side of the drive link. The functional surface is formed on the drive link apex and includes a section of the top side in which the top side is at a maximum spacing from the opening plane. The functional surface of the top side of the drive link is point-symmetric to a symmetry point with respect to the contact surface in the viewing direction toward the drive link plane.

A drive link for a sawchain is disclosed wherein the drive link has a top side which faces away from an opening plane defined by the respective axes of the rivet openings and extends at least partially at the drive link apex. A functional surface and a contact surface spaced apart from the functional surface are provided on the top side of the drive link. The functional surface is formed on the drive link apex and includes a section of the top side in which the top side is at a maximum spacing from the opening plane. The functional surface of the top side of the drive link is point-symmetric to a symmetry point with respect to the contact surface in the viewing direction toward the drive link plane.

A saw chain includes connecting links and drive links that are mutually connected by rivets in an articulated manner about rivet axes. The rivets project through at least one rivet opening of one connecting link and through a rivet opening of a drive link. At least one rivet has, on one end face thereof, a depression having a depression edge and a depression base surrounded by the depression edge. The distance of the depression edge from a central plane of the saw chain increases at an increasing radial distance from the rivet axis. The distance (e) of the base from the central plane does not increase at any point of the base at an increasing radial distance from the rivet axis. A greatest distance (a) of the base from the rivet axis corresponds to 50% to 100% of half the core diameter (d) of the rivet.

A method of manufacturing a chain link (8) of an abrasion cutting chain comprises: providing a metal blank with outer contours of the chain link (8) and rivet holes (14); and providing a ring (15) of a seal material by injection-molding of seal material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to at least one of the rivet holes (14). The seal material flows via the transfer channel (16) into at least one cavity portion of an injection mold assembly to form at least one rings (15) of seal material. An abrasion chain link comprises at least one rivet hole (14). A transfer channel (16) is provided next to the rivet hole (14).

A method of manufacturing a chain link (8) of an abrasion cutting chain comprises: providing a metal blank with outer contours of the chain link (8) and rivet holes (14); and providing a ring (15) of a seal material by injection-molding of seal material around at least one rivet hole (14). The method further comprises providing a transfer channel (16) in the metal blank adjacent to at least one of the rivet holes (14). The seal material flows via the transfer channel (16) into at least one cavity portion of an injection mold assembly to form at least one rings (15) of seal material. An abrasion chain link comprises at least one rivet hole (14). A transfer channel (16) is provided next to the rivet hole (14).

A high-efficiency saw chain, including a plurality of transmission pieces, a plurality of rebound transmission pieces, a plurality of cutters, a plurality of connecting pieces and a plurality of pin shafts. The product of the average pitch between two adjacent pin shafts in the saw chain, the maximum height of the saw chain and the maximum thickness of the saw chain is 406 to 450 mm3. The high-efficiency saw chain may reduce the volume of the saw chain, reduce the size of the saw chain, effectively reduce the energy consumption of the saw chain, and effectively prolong the battery life of a lithium battery or gasoline engine.

A high-efficiency saw chain, including a plurality of transmission pieces, a plurality of rebound transmission pieces, a plurality of cutters, a plurality of connecting pieces and a plurality of pin shafts. The product of the average pitch between two adjacent pin shafts in the saw chain, the maximum height of the saw chain and the maximum thickness of the saw chain is 406 to 450 mm3. The high-efficiency saw chain may reduce the volume of the saw chain, reduce the size of the saw chain, effectively reduce the energy consumption of the saw chain, and effectively prolong the battery life of a lithium battery or gasoline engine.