[python] Re: monty's new home
- From: Olaf Johansson <home@xxxxxxxxxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Mon, 29 Jan 2007 22:59:10 +0100
Dirk, I think your idea is doable. However, I will start from scratch
with my new foldable. As you say, the simplicity of the python
invites to simple solutions compared to ordinary foldables. I want
the new design to be simple in every aspect.
In order to compete with Brompton there is another issue beside
foldability. The rear rack on Brompton is very low compared to the
saddle which makes it possible to haul big loads. I have ridden the
Brompton with a 65 litres rucksack placed on the rack and strapped to
the saddle post, without any stability problems. Since my dream is to
make a longer tour where I combine train rides with biking, I need
that space. On a design like the monty there is no room for a big
load. So my latest thought is to make a higher frame where the load
is placed under the seat. A higher sitting position I also hope will
reduce the fear factor which is big when riding in city traffic
aamong motor vehicles on a very low and very tiny bicycle.
I'll be happy to share idéas and thougts with this list in order to
find good solutions.
Olaf
On 28 jan 2007, at 22.08, dirk.bonne@xxxxxxx wrote:
Hoi Olaf,
Attached a folded monty. Hope the collage is not misunderstandable..
There is one fold (upwards) just in front of the front wheel. The
front
folds upwards taking care of that nasty BB part. The tubes need to be
adjusted so the wheel fits between them. You need a derailleur kind of
gearing so the chain dioes not slack.
One fold under the seat (sideways, under a negative 60degrees - i.e.
opposite from the pivot). The rear wheel folds nicely away parallel to
the front wheel by using the folding of the pivot and that one extra
fold. It protects the chain between the two wheels.
Smaller then a brompton. Easier to fold. ...well ok, nearly ;-)
The seat is left out. But using the Jürgen seat it should be no
problem
either.
Caveat: I just dreamed it up in a few minutes: I may have made one or
two mistakes... ;-).
But it demonstrates something: a recumbent like the python needs much
less engineering effort to fold then a brompton as it is basically a
stick going straight from rear wheel to BB.
Is there hope for a monty 2.0?
Dirk
Olaf Johansson wrote:
Jürgen, I have moved the montypage to a new url
http://www.olafjohansson.com/monty/montypage.html
If you want to update the link on the projects page please do so.
<P1010007-folded.jpg>
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