Any independant rear suspension 3 Wheelers ??

[xxllmm4]

Hey everyone,

I have been doing some thinking and about suspension designs and was curious if anyone has ever made a independent rear end on a off road trike? I have seen a lot of newer 3 wheel bikes with the tilting front tires. I did a patent search and came up with a couple patents. It looks like The second patent would actually be pretty easy to make with chain drives. Also check out the filing date, Filing date: Apr 7, 1987 Issue date: Dec 19, 1989 If the idea would have worked it looks like too little too late.

http://www.google.com/patents?id=t4w...page&q&f=false and http://www.google.com/patents?id=lzw...page&q&f=false

If you have any pics of any actually made I would love to see them

Thanks
Jordon

[tri again]

so are you describing like a rear end differential, with spider gears so the wheels can spin independently...
AND
say like 4 universal joints so everything can move where it wants to?

I've never seen a quad up close, or never cared to look at them since I be a trikefreak but

I am visualizing like a triumph tr6 with IRS.

am i in the ballpark of the concept?

[tri again]

where in oregon?

we might be neighbors, eh?

[xxllmm4]

In the patented http://www.google.com/patents?id=lzw...page&q&f=false Figure 1 & 2 could be done with bearings gears and chains. No universal joints would be needed, and no diff. Fig 4 shows more of a quad rear end. I was actually thinking of something like this http://www.minibuggy.net/forum/proje...-seater-4.html

I'm in Cornelius, between Hillsboro and Forest Grove how bout you?

Jordon

[leviblue]

like the TRX 700? I wouldn't be throwing it in a corner or even catching air with it. no way no how with me. It's a neat idea but not the safest idea for a trike. No stability but I'm probley wrong....

[tri again]

I only agree with the instability comment because the first time I rode a
full suspension trike, I rolled it IMMEDIATELY..

and this is after decades of riding honda trikes.

just wasn;t used to the suspension.

Same thing happened to a few friends when we got full suspension trikes.

Hardtails, you KNOW exactly where you are relative to the ground.

I have one set on full muuuush for crossing the pasture in 2nd gear and one set on full stiffness for
a little faster trail and dune riding.

Hardtails have a soft spot in my heart for when I was younger and liked to sliiiiide around corners.

My 87 big red is almost too cadillac but my poor back loves it. AND I always go slow..just a little faster than walking usually.

ummmm Veneta, west of Eugene.

Have tons of trike parts in the orchard, btw if you want some frames to experiment on.

[hillbilly 200x]

hey guys I know of a place were you could get all the stuff you neded to build this. I dont know if they are in the states but they are in Canada. Princess Auto was everthing you will need to build a custom rear end for your trikes I have been thinking about this for the pass three years or so and it will be very easy. They sell everthing bearing. 1'1/2" axle, universal joints bushing ect. The universal joints are made for farm use so they can take up to like 1000foot pounds of torke and one side can mated up to the axle the other side you will have to use box steat and that will alow it to move when the arms gove up and down. hope this help I would love to see some pic's of a independant rear suspension 3ww

[HuffieVA]

I've seen the MP3 scooters, the concept adapted to a trike would work as long as there was a way to modulate the rear suspention to force it to lean to the inside of a turn (like a bike) other wise it could potentially throw you to the outside of the corner, regardless it would be a different ride, more like a bike with training wheels than a trike as we currently know it...

[STLTrike]

Pretty kewl. It looks like the filling date on the first one was in 1982

Patent number: 4478305
Filing date: Sep 27, 1982
Issue date: Oct 23, 1984

[fabiodriven]

I keep seeing people ask this question on here and I really don't see why anybody would want IRS on a trike. The only thing keeping that machine stable is the rear axle. It just doesn't make sense to have IRS on a trike.

[Ironbnder]

The whole principle of turning a trike is that the inside tire has to lift and spin to allow the outside tire to rotate faster around the turn. An independent rear would have to have a limited slip function to work properly. It seems neat in thought but I want my solid axle with me in control.

[84atc200]

I would like to ride a trike with irs, i have been thinking about the independant rear suspension too.The rear shocks would have to be pretty stiff i'd imagine, because if you shifted your weight or went in a big rut it would lean over pretty bad. I rode a polaris outlaw and irs on a quad i like it ,it works well in my opinion.

[swampthang]

I hate the way a irs quad handles. I couldnt image how it would be on a trike prolly pretty scary. Way too much body roll for my liking on the atvs. It seems like a solid rear axle on a 4x4 atv is a thing of the past, I believe that the honda foreman is the last model you can find. The only advantage is a smoother ride at low speed and ground clearance.

[Grizzlypeg]

I think it would be counter-productive in terms of handling. You would be fighting the chassis roll on everything but straight on level ground. I wouldn't even want a differential. It would cut traction, and next thing you know, you'd be wanting limited slip. At least the handling of a trike is predictable.

[tri again]

I think it would be interesting for an 'extra' specialty trike, like running an extra long driveway/mail getter, dirt road specific like one with washboards,

but I would want a serious anti sway bar that goes from one side to the other....so when the compressed wheel goes up, it is tied to the other wheel that is trying to drop down.

it would modulate them and keep them more in check.

Kinda depends on how much time and $$ one has.

I personally have enough to do just keeping mine marginally functional.

I'd do it if you can get away with it.

It may motivate you to design something not even related to trikes and then you could be a millionairre with your OWN patent.