Saw chain link with one or more oversized rivet holes
AssigneeOregon Tool, Inc.
InventorsMichael D. Harfst, Christopher D. Seigneur
Life of this patent
Estimating the term…
Abstract
Embodiments herein provide apparatuses, systems, and methods associated with a saw chain link having one or more oversized rivet holes. A rivet may be disposed in the oversized rivet hole and provide a clearance between the rivet and the edge of the oversized rivet hole that is about 0.010 inches or more. The clearance may permit the saw chain to move between two or more stable positions. The saw chain link may be a drive link, such as a cutter drive link or a bumper drive link. In some embodiments, the saw chain link may be a bi-directional saw chain link. Other embodiments may be described and claimed.
Claims21
A saw chain comprising:
- a cutter link including:
- a body;
- a cutter extending from the body;
- a first rivet hole through the body;
- and
- a second rivet hole through the body;
- a first tie strap;
- a second tie strap;
- a first rivet coupled to the first tie strap, the first rivet including a first flange disposed in the first rivet hole;
- and
- a second rivet coupled to the second tie strap, the second rivet including a second flange disposed in the second rivet hole, wherein the first rivet hole is oversized with respect to the first rivet and the second rivet hole has a standard size with respect to the second rivet such that a clearance between the first flange and the first rivet hole is greater by at least 0.008 inches than a clearance between the second flange and the second rivet hole and wherein the clearance between the first flange and the first rivet hole is 0.010 inches or more.
A saw chain comprising:
- a cutter link including:
- a body;
- a cutter extending from the body;
- a first rivet hole through the body;
- a second rivet hole through the body;
- a first tie strap;
- a second tie strap;
- a first rivet coupled to the first tie strap, the first rivet including a first flange disposed in the first rivet hole;
- and
- a second rivet coupled to the second tie strap, the second rivet including a second flange disposed in the second rivet hole, wherein a clearance between the first flange and the first rivet hole is greater by at least 0.008 inches than a clearance between the second flange and the second rivet hole;
- wherein the clearance between the first flange and the first rivet hole is 0.010 inches or more.
A saw chain, comprising:
- a plurality of cutter links, each cutter link comprising a body, a cutter extending from the body, a first rivet hole through the body, and a second rivet hole through the body;
- and
- a plurality of tie straps, each tie strap coupled to a first rivet comprising a first flange and to a second rivet comprising a second flange, wherein for each cutter link, a first flange of the first rivet of one of the tie straps is disposed in the first rivet hole of the cutter link and a second flange of the second rivet of another of the tie straps is disposed in the second rivet hole of the cutter link, and a clearance between the first flange and the first rivet hole is greater by at least 0.008 inches than a clearance between the second flange and the second rivet hole;
- wherein the clearance between the first flange and the first rivet hole is 0.010 inches or more.
Dependencies are inferred from the claim text.