초록 ▼

In a snowmobile ski suspension having two parallel front mounted steerable skis, each ski is steerable by rotation of the trailing suspension arms about a frame mounted bearing forward of the center of the ski. Steering input from the handlebar rotates the suspension and the ski. The ski moves later

In a snowmobile ski suspension having two parallel front mounted steerable skis, each ski is steerable by rotation of the trailing suspension arms about a frame mounted bearing forward of the center of the ski. Steering input from the handlebar rotates the suspension and the ski. The ski moves laterally towards the outside of a turn during rotation to provide increased cornering stability. The ski has a keel mounted forward of its center for ease of turning. The dual support steering column provides a forward offset for the handlebar which leans the driver toward the inside of a corner for better balance and provides crash protection.

대표청구항 ▼

[I claim:] [1.]a bearing, generally vertical in axis, supporting a rotatable suspension mounting adapted to a snowmobile and,a suspension steering control arm having an inboard end and an outboard end, said inboard end being rigidly attached to said rotatable suspension mounting and said outboard en

[I claim:] [1.]a bearing, generally vertical in axis, supporting a rotatable suspension mounting adapted to a snowmobile and,a suspension steering control arm having an inboard end and an outboard end, said inboard end being rigidly attached to said rotatable suspension mounting and said outboard end having attached to it an articulating moveable steering control rod, said articulating moveable steering control rod being either a left moveable steering control rod or a right moveable steering control rod, such that moving said moveable steering control rod linearly on its longitudinal axis rotates said suspension control arm and said rotatable suspension mounting on its axis about said generally vertical support bearing adapted to a snowmobile; andan upper and a lower parallel suspension arm, vertically spaced, each having an outboard end articulated to said ski leg bearing support and an inboard end articulated to said rotatable suspension mounting adapted to a snowmobile and defining a parallelogram linkage for guiding said ski leg bearing support to move generally vertically with respect to the terrain; andyieldable suspension spring and damper means operatively associated with each ski to urge it downwardly to support said rotatable suspension mounting, adapted to a snowmobile, thereon and dampen vertical movement thereof, said suspension spring and damper means having one end attached to said rotatable suspension mounting adapted to a snowmobile and the opposite end connected to said bearing support of said generally upright ski leg; anda steering assembly for rotating said rotatable suspension mounting adapted to a snowmobile, said steering assembly comprising; said left moveable steering control rod and said right moveable steering control rod connected on each respective outboard end to said left and right rotatable suspension steering control arms and each respective inboard end connected to a steering control arm, said steering control arm having pivotal connections to said left and right moveable steering control rods on its outboard end and being fixed to a rotatable steering column on its inboard end such that rotation of said steering column about its longitudinal axis causes said steering control arm to rotate about said longitudinal axis thereby moving both left and right moveable steering control rods generally horizontally either to the left or right and pivoting said rotatable suspension mountings, said suspension arms, said ski leg bearing supports, said ski legs and said skis.