Suspension system for a work vehicle
US6343661B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2000 |
| Grant date | Feb 5, 2002 |
| Priority date | — |
| Expiry date | Jul 14, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01C23/047
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A suspension system supports an implement on a work vehicle and includes a linkage mechanism providing pivotal connection between the work vehicle and the implement and adapted to pivot in such manner as to permit relative upward and downward movement between the vehicle and the implement while maintaining a controlled or selected orientation between them. A hydraulic actuator capable of extending and retracting is operatively connected between the work vehicle and the implement so as to effect the pivotal motion of the linkage and relative motion between the vehicle and implement. A shock absorber is interposed between the hydraulic actuator and one of the work vehicle and the implement for absorbing shock loadings tending to pass between the vehicle and the implement via the hydraulic actuator when in use. The shock absorber includes an elongated link mounted for pivotal motion at a point between opposing ends thereof. One end portion of the elongated link is connected to an end of the actuator and the other end of the link is in a load transmitting relation to a resilient cushion whereby forces exerted by or on the actuator tend to effect pivotal motion of the elongated link and…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.