Articulated tractor with multiple power plants
US4086975A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 30, 1976 |
| Grant date | May 2, 1978 |
| Priority date | — |
| Expiry date | Nov 30, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62D59/04
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An articulated tractor in which there is a front first tractor vehicle and rear second and third tractor vehicles, each of the tractors having an engine for driving the wheels of the tractor and the first tractor having an operator's compartment, the second and third tractors being connected to the first tractor through a cross bar pivotally secured adjacent its longitudinal midpoint to the rear of the first tractor for pivotal movement both about a generally vertical axis and a generally horizontal axis. The rear second and third tractors are secured to the cross bar by pivotal connections at points equally spaced from the first pivotal means so that the longitudinal axis of the second and third tractors are normally substantially parallel to each other. The steering is accomplished by a steering control in the operator's compartment which changes the angular relationship about a vertical axis of the cross bar to the first tractor vehicle to cause the longitudinal axes of the second and third tractor vehicles to assume temporarily an angular relationship with the longitudinal axis of the first tractor vehicle. The pivotal connections of the second and third tractor vehicles to the…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.