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US 9,187,102 B2Granted
Railcar coupler core with vertical parting line and method of manufacture
AssigneeBedloe Industries LLC
InventorsF. Andrew Nibouar, Jerry R. Smerecky, Kelly Day, Vaughn Makary, Nick Salamasick
Life of this patent
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Abstract
A method of casting a core includes the steps of preparing a first half of a corebox, preparing a second half of a corebox such that the parting line of a core formed from the first and second coreboxes runs along the vertical axis of the core.
Claims15
A core for forming interior spaces of a railcar coupler knuckle, the core comprising:
- a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle;
- a C-10 portion configured to form a C-10 pin hole in the railcar coupler knuckle, at least a part of the C-10 portion being formed as a substantially cylindrical portion having a circular cross-section;
- a contoured surface configured to provide detail to the interior spaces of the railcar coupler knuckle;
- and
- a parting line defined on the contoured surface along a vertical direction of the core, wherein the vertical direction is a direction extending from the rear core support to the C-10 portion, and wherein the parting line substantially bisects the circular cross-section of the part of the C-10 portion being formed as the substantially cylindrical portion.
2 more elements
A railcar coupler knuckle comprising:
- a C-10 pin hole, wherein the C-10 pin hole has a draft angle of less than 3 degrees, as cast;
- and
- a top knuckle pulling lug,
- wherein interior spaces of the railcar coupler knuckle are formed using a core comprising:
- a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle;
- a C-10 portion configured to form the C-10 pin hole in the railcar coupler knuckle, at least a part of the C-10 portion being formed as a substantially cylindrical portion having a circular cross-section;
- a contoured surface configured to provide detail to the interior spaces of the railcar coupler knuckle;
- and
- a parting line defined on the contoured surface along a vertical direction of the core, wherein the vertical direction is a direction extending from the rear core support to the C-10 portion, and wherein the parting line substantially bisects the circular cross-section of the part of the C-10 portion being formed as the substantially cylindrical portion, and
- wherein the railcar coupler knuckle has a wall thickness that has a substantially constant thickness from the top of a front face of the top knuckle pulling lug to a bottom face of the top knuckle pulling lug.
7 more elements
A core for forming interior spaces of a railcar coupler knuckle, the core comprising:
- a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle;
- a kidney portion;
- a C-10 portion configured to form a C-10 pin hole in the railcar coupler knuckle, at least a part of the C-10 portion being formed as a substantially cylindrical portion having a circular cross-section;
- a contoured surface extending between the rear core support and the C-10 portion and configured to provide detail to the interior spaces of the railcar coupler knuckle;
- and
- a vertical parting line defined on the contoured surface along a vertical direction of the core, wherein the vertical direction is a direction extending from the rear core support to the C-10 portion, wherein the vertical parting line substantially bisects the circular cross-section of the part of the C-10 portion being formed as the substantially cylindrical portion, and wherein the core is shaped such that railcar coupler knuckle formed using the core has a top knuckle pulling lug with a front face, the front face having a wall thickness with a substantially constant thickness from a top of the front face of the top knuckle pulling lug to a bottom of the front face of the top knuckle pulling lug.
3 more elements
A core for forming interior spaces of a railcar coupler knuckle, the core comprising:
- a rear core support configured to support the core when the core is assembled in a mold used to cast the railcar coupler knuckle;
- a kidney portion including a first section configured to form a top knuckle pulling lug of the railcar coupler knuckle, wherein the first section is shaped such that the top knuckle pulling lug of the railcar coupler knuckle has a substantially constant thickness from a top of a front face of the top knuckle pulling lug to a bottom of the front face of the top knuckle pulling lug, and wherein the substantially constant thickness is between about 0.47 inches and 0.53 inches;
- a C-10 portion configured to form a C-10 pin hole in the railcar coupler knuckle, at least a part of the C-10 portion being formed as a substantially cylindrical portion having a circular cross-section, wherein the C-10 portion has a draft angle of less than 3 degrees, as cast;
- a contoured surface extending between the rear core support and the C-10 portion and configured to provide detail to the interior spaces of the railcar coupler knuckle;
- and
- a vertical parting line defined on the contoured surface approximately along a vertical direction of the core in approximately a middle of the core, wherein the vertical direction is a direction extending from the rear core support to the C-10 portion, and wherein the parting line substantially bisects the circular cross-section of the part of the C-10 portion being formed as the substantially cylindrical portion.
3 more elements
Dependencies are inferred from the claim text.