Canadian SkiBike Patent Details


On Dec 25, 1979, patent number #1068751 was issued to Kevin Leycraft of Calgary, Alberta for a "ski-supported vehicle", the now famous Canadian SkiBike. The patent document contained several pages of description and four diagrams, which are reproduced below. The text below is taken verbatim from the original patent document.

26_feb00

Figure 1. Side view of the snow-vehicle

" ...the invention is concerned with a winter sports vehicle having similar characteristics to that of a conventional bicycle, a seated rider being able to directionally control the vehicle and execute similar maneouvers to that of a skier, at the same, or in fact higher speeds..."

" ...the present invention therefore seeks to improve over the prior art in terms of structural strength, maneouverability and control, by providing a vehicle which comprises essentially in a rearwardly inclined supporting frame of closed-loop configuration which incorporates a triangulated strengthening segment at the rear end thereof..." ...huh!

front_view

Figure 2. Front view of the snow-vehicle

" ...a steering mechanism is included which comprises at least one steering column pivotally attached to an upper front portion of the frame with a handlebar attached to the upper end of the steering column..."

" ...in a preferred construction of the invention, the steering mechanism comprises two steering columns arranged in spaced parallel relation and fixedly attached one to the other by brackets..."

modified_version

Figure 3. A modified version of the vehicle shown in Figures 1 and 2

" ...a front ski is pivotally attached to the lower end of the steering mechanism, pivotal movement being constrained by a shock absorber mounted between the ski and the steering mechanism..."

" ...a rear supporting ski is rigidly attached to a lower horizontal portion of the frame, which portion forms part of the heretoforementioned triangulated segment, the ski extending longitudinally of the frame and in alignment with the front ski..."

snow vehicle in operation

Figure 4. shows the vehicle of Figure 3 in operation

" ...a seat is provided resiliently mounted on top of the frame and can be provided with a shock absorber to increase the overall cushioning effect... "

Translation: you gotta have balls to spare!