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US 6,672,417 B1Granted
Arrangement in a snowmobile equipped with an apparatus for intensifying steering
AssigneeDestar Oy
InventorAntti Vuolle-Apiala
Life of this patent
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AssigneeDestar Oy
InventorAntti Vuolle-Apiala
Estimating the term…
An arrangement in a snowmobile equipped with an apparatus for intensifying steering modifies the ski of the snowmobile to include a drum rotated by means of actuators, the drum forming at least part of the bearing surface of the ski. The rotation axis of the drum is oriented such that when the drum rotates, the circumferential surface of the drum moves transversely to the longitudinal axis of the ski. The drum is provided with one or more ridges protruding from its circumferential surface essentially parallel with the rotational axis of the drum. The drum is provided with one or more locking means arranged to lock the drum in a predetermined position when the apparatus for intensifying steering is not being used or to allow the drum to rotate when operation of the apparatus for intensifying steering is desired.
An arrangement in a snowmobile equipped with an apparatus for intensifying steering comprising the ski of the snowmobile and a drum rotated by means of actuators, the drum forming at least a part of the bearing surface of the ski, the rotation axis of the drum being fitted with bearings in such a way that when the drum rotates, the circumferential surface of the drum moves transversely with respect to the longitudinal axis of the ski, and which drum is provided with one or more ridges protruding from its circumferential surface, the ridges being essentially parallel with the rotation axis of the drum, characterized in that the drum is provided with one or more locking means for preventing the rotation of the drum, the locking means being arranged to lock the drum into a predetermined position when the apparatus for intensifying steering is not used and, correspondingly, to allow the drum to rotate when the apparatus for intensifying steering is used.
An apparatus for intensifying the steering of a snowmobile comprising:
The apparatus of claim 8, wherein one of said ridges is constructed to withstand forces exerted on the bearing surface during use of the snowmobile and said one of said ridges projects through said opening substantially along the longitudinal axis of said ski when said drum is locked in said predetermined position.
Dependencies are inferred from the claim text.