Steering system for articulated vehicles
US4043422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1976 |
| Grant date | Aug 23, 1977 |
| Priority date | — |
| Expiry date | Nov 19, 1996 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C19/26
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An electro-hydraulic steering system for vehicles such as roller type surface compacting machines which have a steerable ground-engaging unit at each end of the chassis. The system combines a conventional orbital type steering valve, two conventional solenoid actuated hydraulic valves and two conventional lock valves with an electric control circuit that includes simple console-mounted selector switches, a foot pedal-controlled switch and a simple cam-actuated switch that is automatically actuated in consequence of shifting the control lever of the vehicle's transmission from "forward" to "reverse" and vice versa, in a manner which gives the operator unprecedented flexibility in his choice of steering mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.