[python] Re: hands free braking aka coaster brake component
- From: "dirk@xxxxxxxxxx" <dirk@xxxxxxxxxx>
- To: python@xxxxxxxxxxxxx
- Date: Tue, 10 Apr 2012 10:32:41 +0200 (CEST)
i for one have not seen something like it. A freewheel should work,
however. You might be able to reuse a freewheel of a conventional gear unit
from a rear wheel. Also, you could adjust the lenght of the leaver to
reduce breaking power, since you are probably using a hand-powered braking
system with your feet now!
Also, i would go for a little dead zone, such that you can reverse your
pedalling for a little distance befor the braking kicks in.
Maybe you can let loose the other end of the freewheel, such that it
reverses until it reaches a fixed point together with the part attached to
the pedals. The fixed point will then be the leaver that pulls the break
from that moment on....
greetings,
DirkS
Mike Power <mpower.lists@xxxxxxxxxxxx> hat am 9. April 2012 um 01:53
geschrieben:
> I really like the idea of hands free braking. But I do not like the
> idea of being constricted to the components that support it. As the
> only components that support it are hubs, and I do not find coaster
> brake hubs to have all the features I am looking for.
>
> One thought I had was to engage a more traditional brake system (disc
> brakes, rim brakes) with a reverse in the drive system. Unless you are
> doing a fixie (in which case you don't want a coaster brake anyway) then
> reverse pedaling is an unused dimension of the bicycle. Not pedaling at
> all, and reverse pedaling are no different when it comes to the physical
> dynamics of the bicycle.
>
> One concept would be to install a free wheel to the left side of the
> crank. Put a cable or loop of cable on the free wheel and mate the
> cable to some sort of brake. When you are pedaling forward the crank
> should be engaging the drive train and the brake freewheel should be
> slipping. When you are pedaling backward the crank should be engaging
> the brake system and the drive freewheel should be slipping.
>
> Thoughts? Does something like this already exist?
>
> Mike Power
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