초록 ▼

An improved rear suspension for a snowmobile. The improved rear suspension includes a first link and a second link, each having a first end and a second end. An extensible, shock mounted link also has a first end and a second end. The first and second links are non-pivotal relative to each other. A

An improved rear suspension for a snowmobile. The improved rear suspension includes a first link and a second link, each having a first end and a second end. An extensible, shock mounted link also has a first end and a second end. The first and second links are non-pivotal relative to each other. A first pivot is defined on the snowmobile frame, a second pivot is defined on the snowmobile frame rearwardly of the first pivot, and a third pivot is spaced downwardly of the first and second pivots. A fourth pivot is movably located relative to the first, second and third pivots. The first ends of the first and second links are pivotally carried by the first pivot, the second end of the first link is pivotally carried by the third pivot, the second end of the extensible link is pivotally carried by the second pivot, and the second end of the second link and the first end of the extensible link are pivotally connected together at the fourth pivot. The first and second links, the extensible link and the locations of the first, second, third and fourth pivots cooperate to define a suspension assembly for the rear of the drive belt support relative to the rear of the snowmobile frame while permitting significant relative movement between the drive belt support and the snowmobile frame.

대표청구항 ▼

In a snowmobile having a frame, a drive belt assembly for propelling said snowmobile, said drive belt assembly including a suspension system for supporting said drive belt assembly on said frame, said suspension system being of the type which includes a front suspension section and a rear suspension

In a snowmobile having a frame, a drive belt assembly for propelling said snowmobile, said drive belt assembly including a suspension system for supporting said drive belt assembly on said frame, said suspension system being of the type which includes a front suspension section and a rear suspension section, an improved rear suspension section comprising, in combination, a first link member having a first end and a second end, a second link member having a first end and a second end, an extensible link member having a first end and a second end, said first and second link members being non-pivotal relative to each other, a first pivot defined on said snowmobile frame, a second pivot defined on said snowmobile frame and being positioned away from said first pivot, a third pivot spaced away from both said first and second pivots, a fourth pivot movably positioned relative to said first, second and third pivots, said first ends of said first and second link members being pivotally carried by said first pivot, said second end of said extensible link member being pivotally carried by said fourth pivot, said first link member including a first link section and a second link section, and fifth pivot for pivotally interconnecting said first and second link sections.