Anyone ever tried this? I had the seats in the garage for another project... But changes are required. There's almost no gap to the propshaft.
I was working on this, but Smart's seats are way cooler...
Hi there,
Anyone ever tried this? I had the seats in the garage for another project... But changes are required. There's almost no gap to the propshaft.
I was working on this, but Smart's seats are way cooler...
I think you need to replace the tubes you cut out and find seats that fit. Loads of them about.
could you tell me how wide the seats are on the base? please
Those tubes need to go back !!!
If the seat dont fit with them in, try another seat.
The way it is, is just down right dangerous
whoa! those two tubes that are missing are about worth about half the strentgh of the chassis! you need to get them back in and get some narrower seats!
Yes, i know i must have them, but not necessarily in that design... I'm thinking a narrow X type tunnel, reinforced on the sides.
The seats are 50cm wide (because of the back adjuster wheel).
I'd suggest prop catchers then.....
I'm not familiar with... Care to explain?
If the prop was to ever let go at a joint, it can smash around in the tunnel... I'd want something to stop it, especially if your sitting so close.
I see... Already checked some pics on other threads. What if i built the whole tunnel in 3mm steel plate. That should cover it... It adds weight but that's not my very first concern. I don't intent to use it for track days that often.
Personally I would say that the seat is completley wrong for a 7, you will find you are sitting much too high.
Regards
Davie
Seems like a lot of work for some nasty smart (sorry i really dont like them) seats.... That are heavy and too big!
Having to redesign the tunnel, making it heavier all over.
I'd also be very worried about where the prop has been cut and joined????
Actually, they're lower then the one I was working on. I've seen some great seats, I liked a lot the ones from jkcomposites but they're too expensive and not comfortable at all. As i said, I'll be using it for a drive on weekends on country roads when there's good weather... I'll have all week to think about this and next weekend we'll see what comes out.
Whack them on ebay and buy something more suitable with the proceeds, they're just too big and heavy, not to mention very sponge like in the event of rain
Try looking at elise seats...
quote:
Originally posted by stevebubs
Try looking at elise seats...
Cloth ones are often <£150/pr...
Keep an eye out for vx220 seats, also...
So, after having a long thought, this is what I came off with...
Leaned the back a little more (is now about 107º), cut and raised the front end of the base so it gives a little more support on the legs without
restraining movement and, as you can see, got a regular seatbelt fitted instead of unpractical racing type.
You will need to allow that seat belt sit closer to your hips, where it is now you would likely slide underneath it in an accident! Either that or the edge of the metal will wear the seatbelt over time.
Or the shoulder strap will deform the seat in a crash and not protect you.
I think you need to research more into what you doing before blindly jumping in and endangering yourself and others. This is why in the UK we now
have IVA to stop this sort of thing.
quote:
Originally posted by Ben_Copeland
Or the shoulder strap will deform the seat in a crash and not protect you.
Yes, i know, it's not all done yet. I'll cut some off on the sides and it will be lined. After lining i'll be higher and further then
it is now...
quote:
Originally posted by loggyboy
You will need to allow that seat belt sit closer to your hips, where it is now you would likely slide underneath it in an accident! Either that or the edge of the metal will wear the seatbelt over time.
quote:
Originally posted by Ben_Copeland
Or the shoulder strap will deform the seat in a crash and not protect you.
I think you need to research more into what you doing before blindly jumping in and endangering yourself and others. This is why in the UK we now have IVA to stop this sort of thing.
quote:
Originally posted by Tilo
quote:
Originally posted by Ben_Copeland
Or the shoulder strap will deform the seat in a crash and not protect you.
I think you need to research more into what you doing before blindly jumping in and endangering yourself and others. This is why in the UK we now have IVA to stop this sort of thing.
No it wont... It will press me against the seat.
Hold on a momenrt. Yes the cutting of the trans tunnel tubes certainly looks 'problematic'
But wasn't there a Structural analysis done on a Locost chassis as a Graduate Engineering Thesis.
Available .still.. onna "net'....that suggested that removing the entire trans tunnel tube labyrinth had NO effect on structural
rigidity , Either in torsion OR bending ??
It's decorative Kids.. a bit of design work done by intuition.. Not structural testing
Best read up on this... just to be sure.. either way :-)
Take a look at these...
How will it it fold forwards!? In case of collision it will hold me against the seat and press down, as in any other car...
quote:
Originally posted by Bare
Hold on a momenrt. Yes the cutting of the trans tunnel tubes certainly looks 'problematic'
But wasn't there a Structural analysis done on a Locost chassis as a Graduate Engineering Thesis.
Available .still.. onna "net'....that suggested that removing the entire trans tunnel tube labyrinth had NO effect on structural rigidity , Either in torsion OR bending ??
It's decorative Kids.. a bit of design work done by intuition.. Not structural testing
Best read up on this... just to be sure.. either way :-)
quote:
Originally posted by Tilo
Take a look at these...
How will it it fold forwards!? In case of collision it will hold me against the seat and press down, as in any other car...
quote:
Originally posted by Ben_Copeland
quote:
Originally posted by Tilo
Take a look at these...
How will it it fold forwards!? In case of collision it will hold me against the seat and press down, as in any other car...
In everyother car they are mounted the something structural. Your seat is NOT!!
It's not the belt mounts on the rails Ben's talking about, it's the sub-mounts you have on the shoulder areas of the seat.
In a significant impact your weight will be thrown forward pulling the belt tight. As this happens a force will be exerted on the sub-mounts on the
seat shoulder. I'd imagine that this force would cause the shoulder area of the seat to collapse and the headrest would slap into the back of
your head. It would also mean that you will travel further forward towards the steering wheel.
A terrible idea in my opinion.
As above (and above etc etc) where everyone is warning you of a dangerous design.
Your weight on the belt (in a crash) will be like spreading the base of a triangle open. This will mean that the amount of load needed to crush the
seat (where your using it as a seatbelt guide) and fold it down will be less than normal - and also lengthening the belt, allowing you to travel
further forward and also potentially allowing the seat back to strike you.
As for someone's comments above regarding the strength of the tunnel (which you agreed to) - I'm not 100% sure as I think I last read it a
lot of years ago, but I believe that was where the analysis describes no losses in structural rigidity with the removal of the tunnel was in reference
to the fact that certain tubes could be cut out. In fact I think it went on to say that if manufactured from a sheet of steel (even thin stuff) and
therefore a monocoque structure, it could actually be improved upon...
Just out of interest, who has cut your prop down and rewelded it? (The portion near to your legs and internal organs)
[Edited on 22/5/11 by Steve Hignett]
quote:
Originally posted by scootz
It's not the belt mounts on the rails Ben's talking about, it's the sub-mounts you have on the shoulder areas of the seat.
In a significant impact your weight will be thrown forward pulling the belt tight. As this happens a force will be exerted on the sub-mounts on the seat shoulder. I'd imagine that this force would cause the shoulder area of the seat to collapse and the headrest would slap into the back of your head. It would also mean that you will travel further forward towards the steering wheel.
A terrible idea in my opinion.
What do you think if I invert the mount strap, turn it upside down? Instead of bolt it the headrest, bolt it to the back of the seat? That part as the support of the side plates...
The prop was cut, made a thick inner tube which got in about 7cm for each side joined both ends and left a 3mm gap between to have it filled with weld. After, it was rectified. This will do for testing, I'll have one made for it if all goes well.