Transport and storage of wheelsets
View Patent ↗A rack defining receptacles for holding railroad car wheelsets arranged in an echelon pattern with the axles of the wheelsets oriented obliquely with respect to the width of the rack. The rack is of strong yet light construction. The rack has a length and width about equal to those of a 20-foot ISO intermodal cargo container and is equipped with corner fittings compatible with conventional container-handling and container-carrying equipment.
1. A railcar wheelset support rack, comprising:
(a) a pair of laterally extending support structures defining a width; and
(b) a pair of longitudinal main members spaced apart from each other laterally, each one of the pair of longitudinal main members including a top member defining a plurality of wheel-receiving openings, each said wheel-receiving opening being paired with a corresponding wheel-receiving opening in the other one of said pair of longitudinal main members, the ones of each pair of wheel-receiving openings being located with respect to each other at an oblique angle with respect to the width of the rack.
2. The rack of claim 1 wherein each laterally extending support structure is an end assembly and defines a pair of corners of the rack and wherein each one of said corners includes an intermodal cargo container corner fitting.
3. The rack of claim 1 having a height that is no greater than 57 inches.
4. The rack of claim 1 wherein each of said wheel-receiving openings in said top member is large enough to receive a wheel of a wheelset to protrude to a depth of at least about 6½ inches below an upper surface of said top member.
5. The rack of claim 1 wherein each of said wheel-receiving openings has a centerline, and wherein the centerlines of a pair of said corresponding wheel-receiving openings coincide and define said oblique angle.
6. The rack of claim 5 wherein said oblique angle is in the range of about 15 degrees to about 20 degrees.
7. The rack of claim 6 wherein said oblique angle is about 18 degrees.
8. The rack of claim 2 wherein each said end assembly includes a pair of corner posts and wherein each said corner post has a corner fitting compatible with an inter-box connector for intermodal cargo containers.
9. The rack of claim 8 wherein each said corner post has a top and a bottom and includes a respective corner fitting at each of said top and said bottom.
10. The rack of claim 1 wherein each said laterally extending support structure includes an end assembly that includes a transverse bottom frame member and a pair of corner posts interconnected by said transverse bottom frame member.
11. The rack of claim 10 including a lateral diagonal support member extending from said transverse bottom frame member to an upper portion of one of said corner posts.
12. The apparatus of claim 10 including a longitudinal diagonal support member extending from an upper portion of one of said corner posts downward toward one of said longitudinal main members.
13. The apparatus of claim 1 wherein one of said longitudinal main members is a trapezoidal box beam having a horizontal bottom side and a horizontal top that is wider than said horizontal bottom side.
14. The apparatus of claim 13 wherein said horizontal top of said trapezoidal box beam includes said top member.
15. The apparatus of claim 14 wherein said wheel-receiving openings defined in said top member are shaped to receive a railroad car wheel including a flange, to a limited radial depth with respect to said wheel that is small enough to maintain a distance between an axle of a wheelset including said wheel and said top member.