Sled structure with runner connecting transverse link
US4466627A · kind A · utility
Inventor
Key dates
| Filing date | Jan 15, 1982 |
| Grant date | Aug 21, 1984 |
| Priority date | — |
| Expiry date | Jan 15, 2002 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB62B13/12
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A sled is provided for traversing a snow covered surface comprising an elongate frame and an elongate flexible runner pivotally mounted to each side of the frame. The runners are mounted onto the frame at a longitudinal position of the runner through which a single resultant force acts in opposition to a force exerted onto the respective runner by a snow covered surface when the sled is traversed thereacross. To provide steering, the runners are rotated about their respective mounting axes and front portions thereof are initially bent toward the direction of turn. A transverse link connects the runners at their frame mounting points assuring that both runners rotate in concert about their respective axes. Conventional snow skies are modified to act as the runners.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.