초록 ▼

An adjustment structure for the cushion unit of a snowmobile suspension system. The adjustment arrangement includes a mounting for the cushioning unit that is defined by a bolt and a pair of mount brackets having guide apertures formed therein. The bolt and guide aperture surfaces are treated so as

An adjustment structure for the cushion unit of a snowmobile suspension system. The adjustment arrangement includes a mounting for the cushioning unit that is defined by a bolt and a pair of mount brackets having guide apertures formed therein. The bolt and guide aperture surfaces are treated so as to avoid shifting of the mechanism under the weight of the snowmobile when the mounting bolt is loosened for adjustment purposes.

대표청구항 ▼

[ What is claimed is:] [1.] A snowmobile drive belt suspension system for cushioning the movement of a drive belt guide rail relative to a body frame of said snowmobile, said suspension system comprising a cushion unit for cushioning relative movement of said drive belt guide rail and said body fram

[ What is claimed is:] [1.] A snowmobile drive belt suspension system for cushioning the movement of a drive belt guide rail relative to a body frame of said snowmobile, said suspension system comprising a cushion unit for cushioning relative movement of said drive belt guide rail and said body frame and a linkage system for controlling such movement and for loading said cushion unit, an adjustment structure for adjusting the relationship of said cushion unit and said linkage system comprising an axle member for supporting an end part of said cushion unit relative to a mount bracket defining at least one adjustment guide aperture for receiving said axle member so that a position of said cushion unit is adjustable, and a surface treatment on a contact surface between said adjustment guide aperture and axle member for resisting the shifting of said axle member within to said adjustment guide aperture under the compression reaction force of said cushion unit.