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seat belt anchor points
rumplitter - 29/4/08 at 09:23 AM

As many of you have already pointed out I've done a poor job of my top seat belt mount welds. Please have a look at the word attachment where I've shown what i propose to do. I'd like peoples honest opinions.

by the way, i don't want to grind off what I've already done.


rumplitter - 29/4/08 at 09:24 AM

as you can see not strong enough Rescued attachment top mount.jpg
Rescued attachment top mount.jpg


02GF74 - 29/4/08 at 09:33 AM

what is wrong with a triangular gusset each side of the nut?

(in red) Rescued attachment gusset.jpg
Rescued attachment gusset.jpg


Mr Whippy - 29/4/08 at 09:37 AM

as above, two each side of each anchor point


rumplitter - 29/4/08 at 09:40 AM

excellent! that'll do me!


02GF74 - 29/4/08 at 10:06 AM

I would recommend you read section 5 seat belt anchorage strength assessment of SVA manual.


Mr Whippy - 29/4/08 at 10:20 AM

just looked at your photo archive, well jellous, that will look so smart when finished lol at the width


MikeR - 29/4/08 at 11:46 AM

I'd do what the others have suggested

PLUS

Add a bar (removable if needed) from the middle of each set of seat belt mounts to the rear engine side tubes - that way the force of you're body on the seat belts has to break / bend / twist the existing tube and also pull in the chassis side rails at the side. If you can do both you're either the fattest man alive or probably cheese wired by your seat belt harness.

I have known someone fail SVA for just welding to the top chassis rail as he raised up the mounting by a couple of inches and therefore induced a twisting motion in the rail.


rumplitter - 29/4/08 at 01:04 PM

just like this?


rumplitter - 29/4/08 at 01:05 PM

try again Rescued attachment seat belt mount.jpg
Rescued attachment seat belt mount.jpg


BenB - 29/4/08 at 01:31 PM

Yup. But I don't see what the horizontal plate welded under the triangulations is supposed to do??


rumplitter - 29/4/08 at 01:53 PM

i just thought cut it from rectangular hollow section, thats all


BenB - 29/4/08 at 01:57 PM

Fair enough- though it will reduce mean that each triangulation fillet is welded on one side only....


Mr Whippy - 29/4/08 at 02:09 PM

I see no issues with that, fully seem weld it.

Remember to radius the edges everywhere in the cabin including around the harness connections behind the seats. Where this is not practical like on sheet metal sections use plastic U section. How’s the dash? is it rounded at the bottom?

Would like to see more pictures of the car.


Mr Whippy - 29/4/08 at 02:17 PM

Does your steering column have a collapsible section? As it looks very straight Rescued attachment mini steering.JPG
Rescued attachment mini steering.JPG


rumplitter - 29/4/08 at 05:57 PM

i've altered the steering column since i saw the bit in the SVA about not having a straight connection, can't remember off the top of my head the angle i have to achieve but it'll mean lenthening the main shaft and shortening the lower shaft.
both have splined ends, i was going to cut, sleeve and weld them.

or i'll be looking at alternatives at Stoneleigh on Sunday!

Not sure about the dash, i need to get my head around the mini windscreen/spaceframe junction.
i'm tempted to mold the whole thing in foam and make a one off fibreglass dash but not sure yet!?

i've changed the pedal box since too! Rescued attachment 23_04_07 006.jpg
Rescued attachment 23_04_07 006.jpg


rumplitter - 29/4/08 at 05:59 PM

pic of pillow bearing for steering culumn support! Rescued attachment 20_04_07 010.jpg
Rescued attachment 20_04_07 010.jpg


rumplitter - 29/4/08 at 06:12 PM

like i say, not sure how to create the dash/chassis together.

I've sketched how i see it on the attached word document.

suggestions on a post card please