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US 9,027,451 B2Granted
Dresser drive link for saw chain
AssigneeBlount, Inc.
InventorMike Goettel
Life of this patent
Estimating the term…
Abstract
Embodiments herein provide a drive link having a conditioning portion to be used in conjunction with one or more dresser links of a saw chain to condition a sharpening element. The dresser links may include left and right dresser links configured to contact the sharpening element in first and second contact regions which may not overlap, leaving a gap. The conditioning portion of the drive link may contact the sharpening element in a third contact region that includes at least a portion of the gap between the first and second contact regions.
Claims17
A saw chain comprising:
- a left dresser link having a first conditioning portion on an upper surface configured to contact a first contact region of a sharpening element;
- a right dresser link coupled with the left dresser link and disposed opposite the left dresser link in the saw chain, the right dresser link having a second conditioning portion on an upper surface configured to contact a second contact region of the sharpening element that is different from the first contact region;
- and
- a dresser drive link coupled to the left and right dresser links, the dresser drive link coupled immediately ahead of the left and right dresser links in a direction of travel of the saw chain, wherein the left dresser link, right dresser link, and dresser drive link are coupled to one another by a rivet disposed through a front rivet hole of the left dresser link, a rear rivet hole of the dresser drive link, and a front rivet hole of the right dresser link;
- and the dresser drive link including:
- a tang configured to ride in a groove of a guide bar of a chainsaw;
- and
- a conditioning portion on an upper surface of the dresser drive link including a conditioning material configured to contact a third contact region of the sharpening element that is different from the first and second contact regions.
5 more elements
A system comprising:
- a guide bar having a sprocket;
- a sharpening element disposed adjacent to the sprocket;
- a saw chain configured to ride on the guide bar, wherein the saw chain includes:
- a left dresser link having a first conditioning portion on an upper surface of the left dresser link configured to contact a first contact region of the sharpening element;
- a right dresser link coupled opposite the left dresser link and having a second conditioning portion on an upper surface of the right dresser link configured to contact a second contact region of the sharpening element that is different from, and non-overlapping with, the first contact region;
- and
- a dresser drive link coupled immediately in front of the left and right dresser links in a direction of travel of the saw chain, wherein the left dresser link, right dresser link, and dresser drive link are coupled to one another by a rivet disposed through a front rivet hole of the left dresser link, a rear rivet hole of the dresser drive link, and a front rivet hole of the right dresser link;
- and the dresser drive link including:
- a tang configured to ride in a groove of a guide bar of a chainsaw;
- and
- a conditioning portion on an upper surface of the dresser drive link including a conditioning material configured to contact a third contact region of the sharpening element that includes a gap region between the first contact region and the second contact region;
- wherein the sharpening element is configured to be selectively brought into contact with the saw chain.
9 more elements
Dependencies are inferred from the claim text.