Road planer with improved cutting drum suspension
US4154481A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1977 |
| Grant date | May 15, 1979 |
| Priority date | — |
| Expiry date | Aug 12, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01C23/088
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention is a better road planing vehicle having an improved suspension system for supporting the rotary cutting unit under the vehicle chassis. The suspension includes a pair of lift and tilt cylinders connected in parallel spaced relation at one end to the vehicle frame and at the other end to the top of the cutter housing. Three parallel and triangularly arranged drawbars are connected at one end to the cutter housing and extend either fore or aft to connect at their other ends with the vehicle frame. A sideshift cylinder is connected between the frame and one of the drawbars. In the preferred embodiment the connections of the lift cylinders and the drawbars are ball joints.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.