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Recumbent tadpole trike: Posts on Velomobilforum p.4

Recumbent tadpole trike: Posts on Velomobilforum p.4

In response to Wolf and Hein, First Wolf's comment.

What I am aware of is that there are quite a few tilters that do not use a monolithic steering system and have in fact decoupled the tilt in order to get the system to be stable. The brake application to the tilt is in fact an effort to stabilize the tilt. I am just before work here and have very little time to comment but I will try to cite examples later.

Below is a general view of the Aileron tilting trike made by Wayne Soohoo it is pretty obvious wher the trike tilts. He controls the tilt by using a brake released with the steering handles. This is what I based my thoughts on for the theoretical spaceframe tilter. Instead of a remote release I think something like a direct brake would work as well.

These data where gathered from http://jetrike.com/prior-art.html#Kurvenleger There are a quite a number of swing arm designs at this site. The above is the closest to the proposed spaceframe tilter and the proposed geometry looks at least sort of original.

Aarn's leaning trike (a design from New Zealand). Steering is odd, and turning circle is crap. One lever rotate the steering axis, the other tilts the thing, steering by tilting. You can vary the amount of tilt vs steering. Not sure, might work on a race trike. Tilting is isolated from the steering… well at least to a degree.



This is a Cruzebikes prototype delta leaning trike. This is another tilt arm but yet again it has a brake for stabilization. Again not the first time I have seen this design and it has also influenced my thinking.



Ok those are my citations of design. There are so many tilting trikes online now it is quite a thing to look at compared to 10 years ago. Most are tilt arms and many have brakes or shock absorbed stabilization. It would appear the trapezoid tilting trike is a bit unique but not unlike some of the designs show above.

I believe I may try to prototype the general steering T cross on the proposed tilting trike. I really cant tell how any of what has been discussed works until I have this prototype in my hands…I think the general approach to the kingpins I will use is something like the following sketch using tie rod ends


So that was the end of that post and I did get some replies.

1st reply follows:

Hi Ceeone,


I have to admit I wasn't aware of these designs. It may well be that my impression that tilting trikes only rely on the tilting brake for low-speed stability is entirely wrong.

Here two (German) articles on tilting trikes, outlining some of the design considerations:

https://www.velomobilforum.de/forum...ter-kurvenlegerbeitrag-aus-pro-velo-43.22208/

Not sure how well automatic translation might cope with the technical details, I simply hope for the best :)

Regards,

Hein



From Sheng Fui
2nd reply follows:

to translate I recommend .... to 5000 characters in one pass paste and copy 
for translating I recommend .... www.deepl.com . up to 5000 characters in one pass paste and copy


So that is it so far.   I want to drop a line about my thinking to the forum but wanted to change to German there and keep this in American.  

If you are wondering about me saying American instead of English it is because our dialect is very different from the one in Great Britain and elsewhere. So if I am talking about other sorts of English than American I will say so ... For example those folks in London, England speak British! Yes I do know this is a bit odd but it is my blog. ;D  Ceeann ttfn

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