Trailer hitch with elastomer in shear cushioning
US4626154A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1983 |
| Grant date | Dec 2, 1986 |
| Priority date | — |
| Expiry date | Feb 18, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB61D45/005
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trailer hitch for securing trailers to a platform or deck of a railway flat car comprises an upright pedestal pivotally connected so that it and a fifth wheel plate can be attached to the kingpin of a trailer. The hitch includes a diagonal assembly pivotally connected to the pedestal and being rockable therewith. The diagonal assembly comprises diagonally extending outer thrust members and a central thrust member. A pair of laterally spaced upright support plates are rigidly connectd to the platform or deck. The outer thrust members support in spaced relation a plurality of resilient members on their inner surfaces. The resilient members are also connected to the support plates. Other similar resilient members are connected to the inner surfaces of the upright support plates and these are also connected to the central thrust member thereby providing a completely cushioned trailer hitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.