| 摘要 |
The disclosure herein describes a runner blade adapted to be secured to the underface of a snowmobile ski; the blade consists of a longitudinal rigid member with spaced-apart bolts secured on its upper part for fastening the blade to the ski and with a groove longitudinally extending in its lower part and receiving a plurality of adjacent pieces of cemented carbide. Each carbide has its upper faces brazed to corresponding faces in the groove and its lower faces defining a cutting edge extending below the rigid member and adapted to cut into the icy surface over which the snowmobile runs; a preferred carbide is a tungsten carbide known under the trademark "Carboloy." In providing increased steering control to the skis, an important safety feature is now added to the snowmobile; furthermore, such a construction greatly simplifies the assembling of the blade to the ski and offers a sturdier assembly to oppose lateral forces exerted on the blade.
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