Self-damping trailer hitch
US4131296A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1978 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Jan 9, 1998 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60D1/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A trailer hitch comprising a draw tongue adapted to extend from a trailer, a handle mounted for pivotal movement above the draw tongue, and a cable attached at one end to the handle and extending downwardly through the draw tongue to a hitch coupler which is carried for bodily movement upwardly and downwardly as a function of pivotal motion of the handle. A drawbar adapted to be attached to a towing vehicle is slotted to receive the hitch coupler and recessed to capture the coupler as the latter is moved upwardly by pivotal movement of the handle. A resilient bushing of elastomeric material is captured in compression between the drawbar and the draw tongue resiliently to permit relative movement in all planes and to damp road shock therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.