Snowmobile trail leveler

Claim 1

A trail leveler for smoothing the washboard type pattern of snowmobile trails, the leveler being adapted to move over the trail and comprising: a housing and means to support said housing on the snow as the leveler is moved over the trail to be worked by the leveler; a rotating member carried by said housing and extending generally transversely to the intended path of the leveler, said rotating member having a plurality of axially extending blades which, upon rotation of said member, are adapted to hit the high sections of the snowmobile trail and to thereby remove such high portions upon impact with the blades and to throw the removed high portions upwardly and towards the inside of said housing; and motor means adapted to rotate said member in a direction opposite to the intended path of the leveler to thereby cause said blades to bite into the bottom sections of the high portions of the trail as the leveler is moved over the trail; said housing being further characterized by a shield portion on the top inside surface thereof with depending side walls for substantially enclosing the space in which the removed high portions are thrown upwardly, and a depending trailing edge portion thereon to distribute the removed high portions evenly over the trail; adjustment means for changing the vertical position of said rotatable member with respect to said means to support said housing to thereby adjust the vertical position of said blades with respect to the surface of the trail to be leveled; said means to support said housing being further characterized by a first means positioned at the front end of said housing and of a second support means positioned generally towards the rear of said housing, and wherein said adjustment means is connected between said housing and one of said support means and is operable to change the vertical distance between said housing and said one of said support means; said adjustment means further characterized by being connected between said housing and said second support means, and wherein said adjustment means includes lever means which is pivotally connected at one of its ends to said housing and is pivotally connected to the other of its ends to said second support means, and wherein said adjustment means also includes motor means for pivoting said lever means around its connection to said housing, said lever means comprised of a yoke shaped member with the cross member of the yoke being pivotally attached to said housing and with the lever arms of the yoke extending in a generally fore and aft direction adjacent the sides of said housing and being pivotally connected at their ends to said second support means, said lever means further including a crank section which is fixed to said cross member and which is connected to said lever motor means, said lever motor means adapted to rotate said yoke shaped member around the axis of said cross member; and said adjustment means further characterized by having a stop means for limiting the degree of movement of said second support means with respect to said housing.