초록 ▼

In a snowmobile track suspension, the slide frame is supported upon downwardly and rearwardly angled front and rear suspension arm assemblies. The suspension arm assemblies are of similar construction, length, and orientation, having upper ends connected to fixed pivots in the snowmobile chassis and

In a snowmobile track suspension, the slide frame is supported upon downwardly and rearwardly angled front and rear suspension arm assemblies. The suspension arm assemblies are of similar construction, length, and orientation, having upper ends connected to fixed pivots in the snowmobile chassis and lower ends pivoted to the slide frame. The lower end of the rear suspension arm assembly has a pivot mount that is movable longitudinally of the slide frame. Movement in the forwards direction being blocked by an abutment which ensures that during suspension travel the front end of the slide frame cannot move higher than the rear end thereof.

대표청구항 ▼

1. A snowmobile suspension comprising: a slide frame carried on downwardly and rearwardly angled front and rear suspension arm assemblies that are supported in the snowmobile chassis, said suspension incorporating spring means acting on said arm assemblies to urge said slide frame downwardly into co

1. A snowmobile suspension comprising: a slide frame carried on downwardly and rearwardly angled front and rear suspension arm assemblies that are supported in the snowmobile chassis, said suspension incorporating spring means acting on said arm assemblies to urge said slide frame downwardly into contact with the ground-engaging run of the snowmobile track belt; said front and rear arm assemblies being substantially equal in length and generally parallelly arranged to position said slide frame substantially horizontally with respect to the snowmobile chassis; said front arm assembly having upper and lower ends connected to fixed first and second pivots on the snowmobile chassis and on the slide frame respectively; said rear arm assembly having an upper end connected to a third fixed pivot on said snowmobile chassis, and having a lower end connected to a displaceable pivot that is movable longitudinally of said slide frame; said slide frame defining an abutment that establishes a forwardmost position of said displaceable pivot relative to said slide frame, said abutment being located such that in said forwardmost position of the displaceable pivot, the front and rear arm assemblies define with said slide frame and said chassis a parallelogram linkage which prevents said second pivot from moving to a higher position that than said displaceable pivot relative to said chassis;