초록 ▼

A suspension system for a tracked vehicle providing a wide range of performance characteristics via a user-adjustable overload spring assembly which engages a rear suspension element. An optimum spring force can depend on the both operator characteristics and local operating conditions. A user is af

A suspension system for a tracked vehicle providing a wide range of performance characteristics via a user-adjustable overload spring assembly which engages a rear suspension element. An optimum spring force can depend on the both operator characteristics and local operating conditions. A user is afforded the ability to adjust a rear suspension system to provide desired ride characteristics. A suspension system including a movable stop to define a mechanical relation between a rear suspension arm and a front suspension arm is also disclosed.

대표청구항 ▼

What is claimed is: 1. A snowmobile suspension mountable to the chassis of a snowmobile and about which an endless track is carried, the suspension comprising:a slide rail for engagement with a lower portion of the endless track;a downwardly angled rear suspension arm having an upper end pivotally c

What is claimed is: 1. A snowmobile suspension mountable to the chassis of a snowmobile and about which an endless track is carried, the suspension comprising:a slide rail for engagement with a lower portion of the endless track;a downwardly angled rear suspension arm having an upper end pivotally connected to the snowmobile chassis and a lower end pivotally connected to the slide rail;a shock absorber coupled at one end to the snowmobile chassis and at another end to the slide rail;a coil spring secured around said shock absorber; andan overload spring away from the shock absorber and which forces the slide rail away from the chassis, wherein an overload spring force is transferred to the rear suspension arm at a location between the upper end and the lower end of said rear suspension arm, wherein the overload spring includes an overload arm which transfers the overload spring force to the rear suspension arm, wherein the overload arm is pivotally coupled to the slide rail, andwherein the overload spring force is transferred near an end of the rear suspension arm.