| Patent application number | Description | Published |
|---|
| 20090050390 | ARTICULATED SUSPENSION ASSEMBLY FOR A TRACKED VEHICLE - A suspension assembly for a vehicle having an endless drive track is disclosed. The suspension assembly has a slide frame assembly and a rail extension assembly pivotably connected to a rear portion of the slide frame assembly and pivots about a first axis. The rail extension assembly is pivotable between a raised position and a lowered position with respect to the slide frame assembly. A spring biases the rail extension assembly toward the lowered position. The magnitude of the biasing force of the spring is adjustable. The rail extension assembly can be prevented from pivoting from the lowered position to the raised position independently of the magnitude of the biasing force. | 02-26-2009 |
| 20100230185 | ENDLESS BELT DRIVE FOR A VEHICLE - A drive system has a drive-system frame operatively connectable to a vehicle. The drive-system frame is capable of pivotal movement relative to the longitudinal axis of the vehicle to steer the vehicle. The drive-system frame is incapable of pivotal movement with respect to the frame of the vehicle in a plane parallel to the longitudinal axis and normal to the ground when the vehicle is on flat level terrain and steered straight. A rail is pivotally mounted to the drive-system frame. A ground-engaging endless belt is in sliding engagement with the rail. The belt is operatively connectable to an engine to propel the vehicle. The drive system is operatively connectable to the steering device of the vehicle. A steering angle stopper is disposed on the vehicle such that a steering linkage of the vehicle does not bear a force created when the stopper is engaged. A vehicle is also described. | 09-16-2010 |
| 20120205173 | SNOWMOBILE SUSPENSION - A suspension system for a snowmobile has a rail and first and second suspension arms having lower ends pivotally connected to the rail. A first shock absorber pivotally connected between the first suspension arm and the rail. A second shock absorber operatively pivotally connected between the first suspension arm and the rail. Left and right brackets are connected to the second suspension arm. Left and right tie rods have lower ends operatively pivotally connected to the first suspension arm and upper ends pivotally connected to their corresponding brackets about a first pivot axis. The second shock absorber is disposed laterally between the left and right tie rods. The suspension is movable between a first position where the first pivot axis intersects the second shock absorber and a second position where the first pivot axis is spaced from the second shock absorber. | 08-16-2012 |
| 20120247852 | Snowmobile Suspension - A suspension system for a snowmobile comprises first and second suspension arms pivotally connected to a chassis and to a rail, and extending forwardly and upwardly from the rail. A bracket arm is fixedly connected to the first suspension arm. A link is pivotally connected to the bracket arm. A first shock absorber is pivotally connected to the first suspension arm and to the rail. The lower end of the first shock absorber is disposed forwardly of the lower end of the first suspension arm. A second shock absorber is pivotally connected to the link and to second suspension arm. The lower end of the second shock absorber is disposed rearwardly of the lower end of the first shock absorber. A tie rod is pivotally connected to the link, and to the second suspension arm. A snowmobile having such suspension system is also disclosed. | 10-04-2012 |
| 20130105237 | Front Suspension and Ski Assembly for a Snowmobile | 05-02-2013 |
| 20130270020 | SNOWMOBILE SUSPENSION LOAD ADJUSTING MECHANISM - A snowmobile has a tunnel and a rear suspension assembly. The rear suspension assembly includes at least one rail for engagement with the endless drive track and at least one suspension arm. At least one torsion spring is coupled to the at least second suspension arm. The at least one torsion spring has a first end contacting the rail and a second end. A torsion spring adjuster is fixedly connected to the at least one suspension arm. The torsion spring adjuster receives the second end of the at least one torsion spring. An actuator is operatively connected to the torsion spring adjuster. The actuator is located at least partially outside the tunnel. The actuator operates the torsion spring adjuster to move the second end of the at least one torsion spring relative to the first end of the at least one torsion spring. | 10-17-2013 |
