locoboy
|
| posted on 22/12/03 at 12:04 PM |
|
|
movable pedal box
Hi,
Can anyone point me in the direction of the ins and outs of constructing a movable pedal box?
I cant fathom out how it will work when you are introducing slack into the cables when it is moved forwards.
Any pics would be a bonus
ATB
Locoboy
|
|
|
|
|
nick205
|
| posted on 22/12/03 at 12:32 PM |
|
|
Col,
Would it be a case of making the whole pedal assembly moveable?
i.e. the pedals and the cable fixing points.
This way when you move the pedals the cables will move with the pedals, maintaining the distance the cable is pulled by the pedal mevement - if you
get me drift.
Just a thought - would an adjustable seat on runners be easier!
Cheers
Nick
|
|
|
locoboy
|
| posted on 22/12/03 at 01:15 PM |
|
|
Nick,
Cheers for the clarification, im not going to make one i was just interested in how they work, i guess its the same as taking a brake lever off a
pushbike and mounting it on the crossbar, it would still work because the fixed points have moved with the lever.
ATB
Locoboy
|
|
|
PioneerX
|
| posted on 22/12/03 at 03:35 PM |
|
|
Kinda glad this has come-up. I was interersted in this as my stepson (who would like nothing more than to drive the car when finished) is only 4ft
tall (dwarf) so would require the pedel box to be movable.
His normal cars have pedel extentions, but it is quite invloved to get them in and out when I need to drive his car.
The way it was done is not really the issue, does anyone know what the SVA implications of a pedel box that can move would be?
Simon
|
|
|
locoboy
|
| posted on 22/12/03 at 04:05 PM |
|
|
i assume that if the pedal box was strongly constructed and when affixed in any of its various positions it was secure, and would not wobble or can
not be moved whilst driving all should be well.
ATB
Locoboy
|
|
|
Bob C
|
| posted on 22/12/03 at 04:14 PM |
|
|
I think the old Marcos had adjustable pedals in this way. It had a big wheel on a leadscrew to do the adjusting. Remember, it has to be the strongest
thing on the car(!) - you can't half push hard on the brake pedal when you think you're going to crash.....
cheers
Bob C
|
|
|
locoboy
|
| posted on 22/12/03 at 04:17 PM |
|
|
i suppose a suitable method of fixing would be a series of holes and pins with split pins through them, it would make it easy enough to take off to
adjust but pretty stable and sturdy too.
anyone think of any other ideas?
ATB
Locoboy
|
|
|
Peteff
|
| posted on 22/12/03 at 04:27 PM |
|
|
If the master cylinder has to move as well it will have to be joined with a flexible hose somewhere.
yours, Pete.
yours, Pete
I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.
|
|
|
locoboy
|
| posted on 22/12/03 at 04:53 PM |
|
|
3 x flexi's for the 2 fronts and the 1 rears and the adjustment of the pedal box would have to be within the maximum length of the flexi's
to satisfy the tester that at full extension of the pedal box the flexi hoses were not kinked/twisted or chaffing on anything.
does anyone know of any cars out there that have a sliding pedal box?
ATB
Locoboy
|
|
|
ChrisW
|
| posted on 22/12/03 at 05:28 PM |
|
|
Why not just move the seat??
Chris
My gaff my rules
|
|
|
JoelP
|
| posted on 22/12/03 at 06:47 PM |
|
|
the steering wheel would probably be too close then, dwarfs are often shorter in the leg then in their top half, so its the pedals that are the
problem.
Id make the box from strong plate, 3 or 4mm, and have a sturdy set of tubes to bolt it to in different positions.
Of course, this modification could be done post SVA to avoid red tape.
|
|
|
Mix
|
| posted on 23/12/03 at 08:52 AM |
|
|
The CC Cyclone, (now sadly defunct) had a moveable pedal box. I was once lent a build manual and it was detailed in there. Might be a good place to
start.
Mick
|
|
|
PioneerX
|
| posted on 23/12/03 at 11:54 AM |
|
|
Thanks Mix,
At least pointed me in the right direction.
Not going to tell my stepson it's possible yet as I'm not too sure about leting a 21 year old boy racer loose in a Vx powered locost 
Hes already blown two Alfa 33 Engines (1.5l flat four)
|
|
|
