Snowmobile drivetrain

Details Snowmobile drivetrain Snowmobile drivetrain

2006-09-12

2006-09-12

Winner, Tony (Department: 3611)

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

C180S193000

Reexamination Certificate

active

07104353

ABSTRACT:
Methods and apparatus for propelling snowmobiles are disclosed. A snowmobile in accordance with an exemplary embodiment of the present invention comprises a chassis defining a tunnel, a drive shaft at least partially disposed in the tunnel, and at least one drive sprocket fixed to the drive shaft. A drive track overlays a portion of the at least one drive sprocket. A bearing is disposed within an interior of the drive track for rotatably supporting the drive shaft. The drive shaft is preferably operatively coupled to an engine by a drivetrain. In an advantageous embodiment, the drivetrain comprising a reduction mechanism that is substantially disposed within the tunnel defined by the chassis. In a particularly advantageous embodiment, the reduction mechanism is disposed within a projection extending from a drive sprocket fixed to the drive shaft.

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