Vehicle having transverse leveling means
US3937339A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 1973 |
| Grant date | Feb 10, 1976 |
| Priority date | — |
| Expiry date | Nov 5, 1993 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60G2800/912
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An end loader or forklift vehicles adapted to traverse uneven terrain and work surfaces and to vertically position a load, the vehicle including an automatic leveling device for maintaining the load and vehicle body transversely level regardless of uneven terrain. The leveling device includes means for operation in two separate angular sensitivity ranges, one adapted to automatically level the load and vehicle body during travel of the vehicle over uneven terrain, and the other range adapted to likewise level during stationary operation of the vehicle. To achieve this function the vehicle is provided with motor means for vertically positioning the vehicle axle and wheel assemblies relative to the vehicle body. The motor means is responsive to signals from the automatic leveling device including mercury switch means to accomplish vehicle body leveling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.