Arrangement for lubricating saw chains of power saws

An arrangement for lubricating the saw chain of a power-driven chain saw having a guide bar for accommodating and guiding the saw chain, the saw chain including chip-removing members, cutting-tooth members, and connecting members, all of which are respectively provided with two rivet holes, said members being interconnected in a specific pattern by means of rivets and said rivet holes to form rivet connections, said chip-removing members having respective extensions which run in the guide bar provided with an oil supply for lubricating the saw chain, the arrangement comprising:

• at least one groove defining an oil guide formed in the side surface of each of said chip-removing members, the oil guide having an inlet opening communicating with the oil supply, the oil guide being disposed in said surface to extend counter to the running direction of the saw chain and to extend at an angle upwardly toward one of the rivet holes;
• each of said chip-removing members further having at least one oil channel formed in said side surface and communicating with the end of said oil guide remote from said inlet opening;
• said oil channel of each of said chip-removing members being disposed at least in part in the vicinity of at least one of said rivet holes and being at least partially covered by a member of the saw chain connected to the chip-removing member;
• and,
• said at least one oil channel being a full circle surrounding the rivet hole associated therewith.

An arrangement for lubricating the saw chain of a power-driven chain saw having a guide bar for accommodating and guiding the saw chain, the saw chain including chip-removing members, cutting-tooth members, and connecting members, all of which are respectively provided with two rivet holes, said members being interconnected in a specific pattern by means of rivets and rivet holes to form rivet connections, said chip-removing members having respective extensions which run in the guide bar provided with an oil supply for lubricating the saw chain, the arrangement comprising:

• at least one groove defining an oil guide formed in the side surface of each of said chip-removing members, the oil guide having an inlet opening communicating with the oil supply, the oil guide being disposed in said surface to extend counter to the running direction of the saw chain and to extend at an angle upwardly toward one of the rivet holes;
• each of said chip-removing members further having at least one oil channel formed in said side surface and communicating with the end of said oil guide remote from said inlet opening;
• said oil channel of each of said chip-removing members being at least partially covered by a member of the saw chain connected to the chip-removing member;
• said oil channel being circular and disposed in surrounding relationship to said one rivet hole;
• and,
• a second circular channel disposed in surrounding relationship to said other one of said rivet holes;
• and,
• said chip-removing member being further provided with a short oil supply channel which interconnects said two oil channels.

An arrangement for lubricating the saw chain of a power-driven chain saw having a guide bar for accommodating and guiding the saw chain, the saw chain including chip-removing members, cutting-tooth members, and connecting members, all of which are respectively provided with two rivet holes, said members being interconnected in a specific pattern by means of rivets and said rivet holes to form rivet connections, said chip-removing members having respective extensions which run in the guide bar provided with an oil supply for lubricating the saw chain, the arrangement comprising:

• at least one groove defining an oil guide formed in the side surface of each of said chip-removing members, the oil guide having an inlet opening communicating with the oil supply, the oil guide being disposed in said surface to extend counter to the running direction of the saw chain and to extend at an angle upwardly toward one of the rivet holes;
• each of said chip-removing members further having at least one oil channel formed in said side surface and communicating with the end of said oil guide remote from said inlet opening;
• said oil channel of each of said chip-removing members being at least partially covered by a member of the saw chain connected to the chip-removing member;
• and,
• said oil channel having an arcuate shape in the form of a semicircle and being located in surrounding relationship to said one rivet hole, the ends of said channel terminating approximately at a vertical plane extending perpendicularly to the direction of movement of the saw chain along the guide bar and passing through the axis of said one rivet hole.