Snowmobile ski including runner, sole and stiffener

Details Snowmobile ski including runner, sole and stiffener Snowmobile ski including runner, sole and stiffener

1990-07-03

1992-11-24

Mitchell, David M.

Land vehicles

Runner vehicle

Machinery sled

B62B 1702

Patent

active

051657090

ABSTRACT:
A snowmobile ski is made of two main parts, namely a steel stiffener and a sole made of ultra high molecular weight polyethylene (UHMW-PE) to which a friction reducing additive has been added. The front handle is molded integrally with the ski sole and then bent back and secured to the sole and stiffener. The sole has upstanding projections on which the stiffener rests so that spaces are provided which allow the sole to deflect when impacted thereby reducing transmission of impacts to the stiffener. The stiffener is formed with a main stiffener and secondary stiffeners provided only when the ski is to be attached to the suspension assembly. The secondary stiffeners coact with the main stiffener to increase the strength and rigidity while minimizing the weight increase.

REFERENCES:
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patent: 3850440 (1974-11-01), Reedy et al.
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patent: 4077639 (1978-03-01), Reedy
patent: 4291892 (1981-09-01), Berthold et al.
patent: 4591174 (1986-05-01), White
Advertisement TS 101 Tunnel Skis of Ultimate Sports, Inc. published in "Snow Week", Winter 1988-1989.

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