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US 2010/0071982 A1Published application
Snowmobile and rear suspension for snowmobile
AssigneePolaris Industries Inc.
InventorsTIMOTHY JAMES GIESE, RICHARD H. BATES, JR.
Life of this patent
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Abstract
A snowmobile rear suspension is shown comprised of a linear force element (LFE) positioned outside the envelope of the snowmobile endless track. The LFE is attached at one end to the frame and at the other end to a bell crank. The bell crank is operatively connected to the slide rails, and carrier rollers extend from the bell crank. When the slide rails collapse in normal operation, the bell crank strokes the LFE, and the suspension is progressive throughout the range.
Claims28
A snowmobile, comprising:
- a frame;
- endless track for driving the snowmobile;
- slide rails for mounting the endless track;
- at least one linkage between the slide rails and frame, the linkage comprising a pivot link, where the pivot link pivots in response to movement between the slide rails and the frame;
- carrier rollers coupled to the at least one linkage, with the endless track positioned over the carrier rollers;
- and
- at least one linear force element (LFE) positioned between the linkage and the frame, whereby pivotal movement of the linkage strokes the LFE.
4 more elements
A snowmobile, comprising:
- a frame;
- endless track for driving the snowmobile;
- slide rails for mounting endless track;
- at least one linkage between the slide rails and frame;
- carrier rollers coupled to the at least one linkage, with the endless track positioned against the carrier rollers;
- and
- at least one linear force element (LFE) positioned substantially horizontally, with one end attached to the frame and one end connected to the at least one linkage.
4 more elements
A snowmobile, comprising:
- a frame;
- slide rails coupled to the frame;
- endless track mounted to the slide rails;
- at least one linear force element (LFE) positioned outside of the envelope defined by the endless track;
- a suspension assembly coupling the slide rails to the frame;
- carrier rollers coupled to the suspension assembly;
- whereby one end of the LFE is attached to the frame and the opposite end is attached to the suspension assembly, with the endless track passing through the suspension assembly and over the carrier rollers.
4 more elements
Dependencies are inferred from the claim text.