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US 4,982,990 AGranted
Rail wheel
AssigneeMesserschmitt-Bolkow-Blohm GmbH
InventorsBernd Bongers, Rene Meurer, Walter Oefner, Klaus Rode, Georg Maier
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AssigneeMesserschmitt-Bolkow-Blohm GmbH
InventorsBernd Bongers, Rene Meurer, Walter Oefner, Klaus Rode, Georg Maier
Estimating the term…
In order to attain a cost-effective manufacturing, suitable for large-scale production, in the case of a rail wheel, and, at the same time, a high degree of structural strength, whereby the wheel disk, which rigidly joins the wheel hub (4) with the wheel tire in a fibrous composite type of construction, is made of two external fibrous composite surface layers and a characteristically light inner core, which transmits shearing force, arranged between them, the inner core is composed, according to the invention, of ring segment-shaped, foam plastic-filled fibrous composite hollow cases (22), each consisting of web portions (28), running radially between the wheel hub and the wheel tire, arranged perpendicularly to the surface layers, with an intersecting fibrous orientation, slanted at an angle to the longitudinal direction of the sections, as well as profile side walls (30), formed in one piece, on the longitudinal edges of the web portions, with a continuous fibrous structure, each evenly bonded with the inner surface of the surface layers, and of segment extensions (32, 34), lying contiguously, in one piece, on the web portion ends, forming the outer and inner surrounding edges of the hollow cases.
In a rail wheel including a wheel hub, a wheel tire and a wheel disk, which wheel disk rigidly joins the wheel hub and the wheel tire and comprises a fibrous composite type of construction including two external fibrous composite surface layers and a relatively light inner core which transmits sheering force, arranged between said surface layers, an improvement wherein the inner core comprises sheer resistant fibrous composite profile sections having a longitudinal direction, each of said profile sections extending radially between the wheel hub and the wheel tire and including web portions disposed perpendicularly to the surface layers and profile side walls formed in one piece on longitudinal edges of the web portions with a continuous fibrous structure, the profile side walls being coupled with the surface layers to transmit forces, the profile sections having an intersecting fibrous orientation, slanted at an angle to the longitudinal direction of the sections.
A method of manufacturing an inner core of a wheel disk of a rail wheel, wherein said wheel disk rigidly joins a wheel hub and a wheel tire of the rail wheel, comprising the steps of:
Dependencies are inferred from the claim text.