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US 3,942,812 AGranted
Snowmobile ski
OwnerWoodruff J. Kozlowinventor
Life of this patent
Estimating the term…
Abstract
A snowmobile ski comprising a longitudinal runner and a keel, mounted on the underside of the runner, including a wear bar engageable with a surface to be traversed, a pair of clamps removably connected to the underside of the runner for releasably clamping opposite sides of the wear bar, and longitudinal key members locking the wear bar to the clamps to selectively prevent relative vertical movement of the wear bar and the clamps.
Claims15
A keel for longitudinally extending ski runner including:
- wear rail means for engaging a surface to be traversed;
- longitudinally extending wear rail mount means having an upper face for bearing against the underside of said ski runner and a lower face having a longitudinally extending groove therein;
- means for fastening said mount means to the underside of said runner;
- said wear rail means comprising a plurality of longitudinally spaced, flat discs having upper portions received in said groove and lower portions extending below said mount means, said discs being mounted for rotation on said mount means to permit selected perimetrically spaced portions of said discs to engage the surface to be traversed.
1 more element
A runner blade for a longitudinally extending snowmobile ski runner comprising:
- a longitudinally extending wear rail for engaging a surface to be traversed including a lower portion having opposed side surface which converge downwardly to define a sharp ground engaging lower edge portion and an upper portion of increased breadth;
- opposed, longitudinally extending, transversely separable clamp members adapted to underlie said runner, for clamping opposite sides of said upper portion;
- means extending upwardly from at least one of said clamp members for removably mounting said clamp members on the underside of said ski runner;
- said clamp members including longitudinally extending, confronting groove portions along the lower portions thereof cooperating to define a downwardly opening, groove receiving said upper wear rail portion;
- and
- means reacting between said clamp members for removably clamping said clamp members to opposite sides of said upper wear rail portion;
- said included angle between said opposed side surfaces being in the range of 60.degree. - 65.degree..
4 more elements
A snowmobile ski comprising:
- a longitudinal runner having an upturned leading end, a trailing end, and a plurality of apertures which extend therethrough, between said ends;
- and
- a keel mounted on the underside of said runner including:
- longitudinally extending mounting means having a generally flat upper face bearing against the underside of said runner to minimize roll of said keel about its longitudinal axis when said keel is subjected to transverse forces and a bottom face provided with a longitudinally extending groove therein;
- a plurality of longitudinally aligned fastening means extending upwardly from said upper face and received in said apertures for fastening said keel to said runner;
- wear rail means, comprised of material substantially harder than said mounting means and having an upper portion received in said groove and a lower portion disposed below said mounting means, for engaging a surface to be traversed;
- said lower portion including laterally opposite side surfaces converging downwardly to define a sharp, ground engaging cutting edge, the included angle between said converging side surfaces being in the range of 60.degree. - 65.degree.;
- said upper portion including generally vertical side walls joined at their lower edges to the upper edges of said laterally opposite side surfaces.
5 more elements
A keel for a longitudinally extending snowmobile ski runner comprising:
- longitudinally extending mounting means having a flat upper face for bearing against the underside of said ski runner to minimize roll of said keel about its longitudinal axis when said keel is subjected to transverse forces and a lower face provided with a longitudinally extending groove therein;
- longitudinally aligned fastening means extending upwardly from said upper face of said mounting means for fastening said mounting means to said ski runner;
- and
- wear rail means comprised of material substantially harder than said mounting means for engaging a surface to be traversed having an upper portion received in said groove and a lower portion disposed below said mounting means;
- said lower portion including side surfaces converging downwardly to form a sharp ground engaging cutting edge, the included angle between said converging side surfaces being in the range of 60.degree. - 65.degree.;
- said upper portion having generally vertical sidewall surfaces joined at their lower edges to the upper edges of said side surfaces.
3 more elements
Dependencies are inferred from the claim text.