Side bearing arrangement for multi-unit railroad cars with different side bearings on adjacent car ends sharing a common truck
US5207161A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 1992 |
| Grant date | May 4, 1993 |
| Priority date | — |
| Expiry date | Jul 24, 2012 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61F5/14
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A multi-unit railroad car has adjacent ends of adjacent car units carried upon a shared truck and interconnected by an articulating coupling having a female part attached to one of the car units and a male part attached to the other of the car units. Side bearings for carrying loads generated by the car unit whose end has the female coupling part are of an anti-friction type, and side bearings associated with the car unit whose end has the male coupling part are of a constant-contact, limited-friction type so that turning moments exerted by the car units on the shared truck are kept within a desirable range and are kept balanced against each other to avoid either one of the articulated interconnected car units from adversely steering the shared truck during a curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.