Side frame center core construction and method
AssigneeNevis Industries LLC
InventorsErik L. Gotlund, Roshan N. Manibharathi
Life of this patent
Estimating the term…
Abstract
A side frame may include a bolster opening configured to receive an outbound portion of a bolster. A center core may be used during the manufacture of the side frame to form the bolster opening. The center core may include first and second side walls configured to form the first and second side frame columns of the bolster opening. Additionally, each of the first side wall and second side wall may include one or more pin core holes each of which is configured to receive a pin core used in forming the fastening holes of the first and second side frame columns.
Claims15
A center core for manufacturing a side frame of a rail car, where the side frame includes a bolster opening configured to receive an outboard end of a bolster, the center core comprising:
- a first side wall having an inside surface and an outside surface;
- a second side wall having an inside surface and an outside surface;
- a center column located between the first side wall and the second side wall;
- a top wall having an inside surface and an outside surface;
- and
- a bottom wall having an inside surface and an outside surface;
- wherein the outside surfaces of the first side wall, the second side wall, the top wall and the bottom wall define the bolster opening;
- wherein the inside surfaces of the first side wall, the second side wall, the top wall and the bottom wall define at least one aperture;
- and
- wherein the first side wall includes at least one aperture configured to accept a pin core, and wherein the second side wall includes at least one aperture configured to accept a second pin core.
A system for manufacturing a side frame of a rail car, where the side frame includes a bolster opening configured to receive an outboard end of a bolster, the system comprising:
- a center core comprising:
- a first side wall having an inside surface and an outside surface and having at least one aperture passing between the inside surface and the outside surface;
- a second side wall having an inside surface and an outside surface and having at least one aperture passing between the inside surface and the outside surface;
- a center column located between the first side wall and the second side wall;
- a top wall having an inside surface and an outside surface;
- a bottom wall having an inside surface and an outside surface;
- at least a first pin core configured to engage the at least one aperture in the first side wall;
- and
- at least a second pin core configured to engage the at least one aperture in the second side wall;
- wherein the outside surfaces of the first side wall, the second side wall, the top wall and the bottom wall define the bolster opening;
- and
- wherein the inside surfaces of the first side wall, the second side wall, the top wall and the bottom wall define at least one hollow volume.
Dependencies are inferred from the claim text.