A vehicular underframe structure may an include a lower panel including a composite material and having a central portion curved upwards along a longitudinal direction thereof; an upper panel including a composite material and combined on the lower panel wherein an undersurface thereof faces an upper surface of the lower panel with an internal compartment formed therebetween; and a rib portion provided in the internal compartment and having a lower rib integrally protruding upwards from the upper surface of the lower panel and an upper rib integrally protruding downwards from the undersurface of the upper panel.
Vehicular underframe structure
2019-01-01
Patent
Elektronische Ressource
Englisch
IPC: | B62D MOTOR VEHICLES , Motorfahrzeuge |
Middle underframe structure, vehicle body underframe and railway vehicle
Europäisches Patentamt | 2020
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