Coupler knuckle internal pivot pin support
AssigneeNew York Air Brake Corporation
InventorsThomas Berg, Jerome O'Rourke
Life of this patent
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Abstract
A knuckle for a rail car coupler that reduces bending of an intermediate portion of the pivot pin that coupled the knuckle to a rail car coupler. The knuckle has a body with a throughbore defining a first bearing surface at a first end of the throughbore and a second bearing surface and a second end of the throughbore. A support extends from the body into the throughbore and includes a third bearing surface positioned between the first bearing surface and the second bearing surface. When a pivot pin is positioned in the throughbore, it will contact the first bearing surface, the second bearing surface, and the third bearing surface, with the third bearing support protecting against bending of the pivot between the first and second bearing surfaces.
Claims12
A knuckle for a rail car coupler, comprising:
- a body having a throughbore defining a first bearing surface at a first end of the throughbore and a second bearing surface and a second end of the throughbore;
- and
- a support extending into the throughbore and including a third bearing surface that is positioned between the first bearing surface and the second bearing surface, wherein the support is a post extending from an interior surface of the knuckle rearwardly relative to a centerline of the rail car coupler toward the throughbore, and wherein the interior surface of the knuckle does not include an additional bearing surface positioned oppositely about the throughbore from the third bearing surface.
Dependencies are inferred from the claim text.