[python] Re: Front Suspension
- From: George Durbridge <gdurbrid@xxxxxxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Tue, 08 Aug 2006 08:58:11 +1000
This will give you a suspension in which the front wheel can move up
(bump), but not down (droop). You could use a coil spring with a bolt
through it (or a nylon strap beside it) to prevent the spring extending
from a preloaded position. It will tend to prevent the wheel from
following the surface of the road as closely as if it were more freely
suspended: it can't drop into potholes. But it would be a lot better
than no suspension.
On Mon, 2006-08-07 at 10:48 +0200, JÃrgen Mages wrote:
> Hi there,
>
> recently a russian guy called Dmitry Kuteynikov proposed
> me to realise a front suspension by placing a rubber in
> the steering pivot.
>
> In the mailing list this idea was already discussed and
> we came to the conclusion that this could not work because
> the pedal pressure would activate the suspension.
>
> Encouraged by this discussion I taxed my brain and got
> out a solution witch might work:
>
> - mount a hinge between the steering pivot and the front part
> - the hinge has a stopper in the lower position
> - a pretensioned rubber is placed below the hinge
>
> The principle is similar to the rear suspension. The rubber
> is preloaded so that the system weight is compensated.
>
> When the rider pushes the pedal, nothing happens to the
> suspension as the pushing force is towards the stopper
> plate.
>
> When a road bump is passed over, the force is directed
> to the opposite direction and the front part can fold
> upwards (suspension) and is later pulled back to the
> home position by the rubber.
>
> I suppose this is difficult to understand and my
> technical english is not the best. So I added a
> rough sketch to outline the idea.
>
> What do you guys think?
>
> Cheers,
> JÃrgen.
--
George Durbridge
+61 3 9481 3500
+61 409 413 945
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