Arrangement for coupling vehicles
US4254966A · kind A · utility
Inventor
Key dates
| Filing date | Jul 5, 1979 |
| Grant date | Mar 10, 1981 |
| Priority date | — |
| Expiry date | Jul 5, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60D1/34
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In this arrangement, the pitching, rolling and steering movements that take place between a motor car and a trailer are separately accommodated, with the pitching movements being accommodated by a horizontal transverse hinge structure arranged to be nearest the towing vehicle and comprising two relatively moving parts, motion therebetween occurring through an elastic member. A device is provided for stressing the elastic member in a variable and controlled manner whereby weight may be taken off the rear axle of the car to a desired extent and distributed to the front axle of the car and to the trailer axle. The rolling movements are accommodated by a stub-shaft at the front of the trailer, rotatably inserted into a longitudinally extending horizontal hole provided in the second of the above moving parts, and the steering movements are accommodated by an eye at the rear end of the stub-shaft, pivotally engaged in a fork-like member, carried by the trailer towbar, for motion about a vertical axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.