Snow bikes or like apparatus.

Robert2

10 µW
Joined
Apr 29, 2008
Messages
5
Ya, one starts to talk like that after months in patent search topics...yep, 5 years later...it sticks. Snow is out of season, but the engineering isn't. Not many will want such an apparatus...great minds started on this topic half a century ago...the first skidoo was a bike...out of Quebec. So...a gathering of like minds. Robert, St. Catherines, Ontario (a slush town).
 
Replace the front fork, move the pivot point down as close to the ski as possable, and incorperate a spring that lifts the front of the ski if it becomes airborn.

Front Ski should have a surface like a cross country ski, to resist sliding backwards.


the rear should be wide, around 6 inches. the back wheel should be plastic with blastic mags instead of spokes. the mags should be as wide as the wheel, but curved and thin so they alow the wheel to deform easy. when sitting on the bike on hard ground, the back wheel should be flattened for about 1 foot of it's leingth. The tread would be similar to automotive snow tread, but with smaller blocks and shallower voids.

chains can ice up or get clogged with snow, so it should be shaft drive


Brakes would be a rear drum brake to avoid snow buildup.
Over sized hand grips for use with snow gloves.

A half fearing fender in the front of the rear wheel to keep it from throwing snow against your calves and down the top of your boots all day.
 
https://www.ktrakcycle.com/index.html

ktrak-skibike.jpg


http://www.youtube.com/watch?v=HP4VwaD7rd4
 
Drunkskunk yer thinkin'. Michealplague, good posts, I never thought to check out Utube. I'll find the original photo...there is no steering, just "tracked"...lean hard . The testing would have been in snow 6" to several feet...the concept was to travel overland...replacing snowshoe and dogsled with rapid travel. Our use is urban...mostly. Someone have time to search news archives for old photos? Bombadier brothers (bad spelling) are the inventors,'40's I think (30-50). Floatation is key...pounds per square inch... track area...snow type and depth will limit ski concepts.
Later...Robert2.
 
Snow, the inuit have how many words for it? Ice bikes are all figured out, but one thing I learned about snow in 25 years of hucking down ski slopes is, the tool you need changes every 5 minuites, and no two places have the same snow. The opportunities for different solutions that work well exceed that of sailboat racing. Fun as hell to go try out stuff though. Good spikes will work fine in hard packed snow, as I've seen at many ski areas where the machines pack the snow. Out in the wild though, its amazing how deep you can wallow a hole to bury yourself in.
 
You are correct that the conditions change. You think deep powder can be a nightmare? Stuck in slush...40 below...over the boots...seldom repeated. Snow bike isn't goin near either topic, just get around town...mostly salt and sand flavored snow...bare road.
Reminds me of a trip home, Hhwy #11, north side of Quetico Park (quitangopark)...2AM , 20 below( spring)...no headlight (elan)...too drunk for trail...drove down the highway...sparks lit up the snowbanks...very crafty and a safe drunk. Next morning...center of skis are gone on the back ends...riding on spring bolt holes. another time I had a hard time getting home...too drunk I figgered...next morning...not the problem at all...a ski was missing. If I had a headlight I might have noticed the ski was gone. This was 25 years back, so no harpin about drunk...had to use skidoo...lost license. The location is sort of centered on a stretch of road having no stop light for over 200 miles...kind of remote for those that think that way...paradise to those that lived the period. Now...figger how to use electric bike parts to get around city in winter. Later, Robert.
 
Back
Top