Backhoe vehicle
US4771855A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1987 |
| Grant date | Sep 20, 1988 |
| Priority date | — |
| Expiry date | Oct 27, 2007 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2004
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A backhoe vehicle comprising an engine and a driver's seat disposed rearwardly of an oil passage defining rotary joint of a swivel platform rotatably mounted through bearings on a stationary support of a chassis, a swivel guide gear attached to the stationary support, a swivel pinion meshed with the swivel guide gear, a motor for driving the swivel pinion to rotate the swivel platform, and traveling control valves and backhoe control valves mounted in a control box disposed on the swivel platform forwardly of the rotary joint. The motor is disposed below the traveling control valves and the backhoe control valves. The backhoe vehicle further comprises a driver's deck having a bent configuration with step portions thereof disposed laterally of the rotary joint being at a lower level than a cover portion disposed over the rotary joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.