Saw chain
AssigneeAndreas Stihl AG & Co. KG
InventorHarald Mang
Life of this patent
Estimating the term…
Abstract
A saw chain for a power chain saw is provided and comprises drive links and side links that connect them, whereby alternatingly disposed on one and the other longitudinal side of drive links, in place of a side link, are a cutter link and a leading safety link. The cutter link has a cutter tooth and a leading depth limiter, whereby the safety link is provided with a projecting nose for support against the base of a cut. The nose extends in the direction toward the depth limiter. The safety link is provided with a side portion disposed in front of the nose. The side portion has an elevated contact surface, which, when the saw chain is curved in the reversing region, is disposed on the path of a top cutting edge of the cutter tooth, and when the saw chain is extended reaches at least nearly to the height of the depth limiter.
Claims15
A saw chain for a power chain saw, comprising:
- drive links;
- side links for connecting said drive links;
- cutter links, each having a cutter tooth with a top cutting edge, and, in the direction of travel of said saw chain, a leading depth limiter;
- and
- safety links, wherein said cutter links and said safety links are alternatingly disposed on opposite longitudinal sides of said drive links in place of some of said side links, wherein each safety link is provided with a projecting nose that extends in a direction toward a depth limiter of a following cutter link, wherein each safety link is further provided with a side portion that in said direction of travel of said saw chain is disposed ahead of said nose, wherein said side portion has an elevated contact surface that, when said saw chain is curved in a reversing region, is disposed on a path of said top cutting edge of said cutter tooth, and wherein when said saw chain is extended, said contact surface reaches at least nearly to a height of said depth limiter.
Dependencies are inferred from the claim text.