[python] Re: question about pivot angle - 63-65 degrees
- From: mchannon <mchannon@xxxxxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Thu, 04 Oct 2012 22:03:16 -0400
Hi mtzolo
I had a Brike at one time. A picture, not of mine, is at
http://kb7mxu2.home.mindspring.com/images/brike.jpg
I was a little to tall for mine, but when ridden at speed, it would begin to
oscillate or wobble.
Bob Horn, claimed to have solved the instability problem with his S'trike. A
picture is at
http://kb7mxu2.home.mindspring.com/images/strike.jpg
You might also want to look at what Greg Kolodziejzyk did. I'll start you off
with this reference
http://www.adventuresofgreg.com/HPVlog/02-22.html
A google search on lean-steered trikes, especially of the Bentrideronline forum
should reveal some interesting discussions.
For those interested, a picture of the Sirio trike is at
http://www.bentrideronline.com/messageboard/attachment.php?attachmentid=14921&stc=1&d=1295385353
Keep us informed of your progress.
Mike
London, Ontario, Canada
is a similar design.
At 12:54 PM 10/4/2012 +0200, you wrote:
>Hi
>
>* sorry, in the video the "sirio" trike is the second one! the number
>2! ("a combination of steering and leaning (leaning of the seat).")
>* in that video the steering goes straight (when sitting on the bike
>and doing nothing) because of the fact that
>1 - the seat is under the steering axle
>2 - the steering axle itself is inclined
>I think for both of that reasons (am I right or wrong?)
>
>From that considerations my questions: how much COULD BE the steering
>axle? (that is the same of pivot axle) 40°? 65°?
>
>Because, unlike python where the seat is a single blok with rear frame
>(seat is rear frame) and there is only a point linking rear and front
>frame (the pivot), in my case the seat "is" front frame, and it is not
>so easy to find a good combination of
>1 steering axle
>2 inclinations of seat
>for the fact that here there are 2 linking from front and rear frame,
>and they affect the inclination of the seat, changing the trike from a
>city-trike to race-trike...
>
>
>I enclose some drafts hoping they'll help.
>* there are 2 square (behind the head and under the seat), it is
>supposed that they should be 2 silent block, in the middle of which
>the steering axis goes through;
>* the draft is not completed, anyway there is a rear frame and a front
>frame (the seat is part of front frame) and the couple of silent block
>are the (only) con
>
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