Snowmobile suspension system
US4431078A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 1980 |
| Grant date | Feb 14, 1984 |
| Priority date | — |
| Expiry date | Oct 6, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62M2027/026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A snowmobile includes a pair of skis connected to the snowmobile frame by a forward suspension including a pair of telescopic struts which are biased to normally extended positions and are connected to a stabilizer member including a transverse torsion bar. A drive track of the snowmobile is suspended from the frame by a rear suspension, including a link pivotally connected between the frame, and a pair of slide rails and biased downwardly by a pair of torsion springs having respective ends engaged with a pivotally mounted spring end retainer which is connected to the torsion bar of the forward suspension by a pair of motion transfer links which act to "soften" the rear suspension in response to upward telescopic movement of one or the other or both of the telescopic struts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.