Box underframe end structure of railway vehicle
US12221139B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 11, 2020 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Jan 1, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T30/00
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A box underframe end structure of a railway vehicle includes an underframe boundary beam, an end beam, a front draft sill, and a coupler mounting seat, and further includes a rear end cross beam located on one side in a rear of the front draft sill, an end floor fixed between the end beam and the rear end cross beam, and a coupler cross beam fixed with the coupler mounting seat into a whole. A draft sill includes the front draft sill and a rear draft sill respectively arranged on a front side and a rear side of the coupler mounting seat. The coupler cross beam, the rear end cross beam, and the end floor are welded and fixed with the underframe boundary beam. The front draft sill, the rear draft sill, and the coupler cross beam are welded and fixed on a lower surface of the end floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.