3 point seat belt to a roll cage.

[ecameron87]

My roll cage is mostly done and now I need to think about upgrading the lap belts. I did not put "X" bracing in the main hoop because I have people getting into the back seat often and this is still my daily driver. Because of this and the style of seats I have, I cannot use a 4-point type seat belt. So my goal is to attach a 3-point to the cage.

The seats are tied into the cage and the cage is tied to the frame. You can see it here:
http://www.wheelingarizona.com/forums/viewtopic.php?t=6377

What are some of the ways you all are attaching your seat belts to a roll cage? Mainly I am talking about the shoulder mount. Should I weld a tab or drill a hole through the bar? I would rather not drill the hole for structural reasons. I have searched and all I have seen so far are 4-5 point harnesses and a fancy clamp that clamps to the bar (a fancy home brewed clamp.) What other ideas are out there?
Pics would be appreciated.

 

[walla2k5]

Looks like your head is going to hit the cage,ouch.....Nice job though.
Sorry can't help with attaching your 3 point,as I run a 4 point myself.
I attached mine to the stock mounting bolts on the floor.

 

[ecameron87]

I am 6ft tall and my head is 3" from the main hoop. I think it will hit while off-roading. I better pad that area of the hoop. As for the seat belts, I don't want to tie it to the floor just in case the cage does separate from the frame, my seat belt will squash me like a bug.

 

[81jimmyslt]

Weld on tabs and use appropriate hardware.

 

[ecameron87]

Sorry to revive and old post, but does anyone know what the correct tabs are that I can weld onto the cage? It is about time to upgrade the stock lap belt.

 

[Skigirl]

For the top of the lap belt I drilled a hole in the cage tube and had a bung welded in there, then secured the belt with a 1/2" diameter bolt and lock nut.

For the floor part of the belt mechanism I had a tab welded to the cage rail that looked like the tube tab on this site (scroll down to see the tube tab). I got mine at a metal supply place in town.

No reason why you couldn't use tabs for upper and lower. I didn't want the upper tab because it will stick out somewhere and I didn't want to bash my head into it every time I tried to get into the back. Bolting thru the tube with a bung seemed a cleaner install to me.

 

[ecameron87]

Do you think that drilling the hole in the cage will weaken the cage at all? This is what I would like to do at all three points of the belt.

 

[cegusman]

No it will not, you will be welding in a bung so the stength will still be there.

 

[Skigirl]

What cegus said.

 

[kw48653]

if you haven't already purchased the belts

you can choose the kind that wrap around the cage.

 

[Skigirl]

Got any pics or sources to buy?

 

[79chevyk10]

As you can see the lap belts are attatched to tabs welded to the cage, my seats are also attatched to the cage. The shoulder belt is a "Y" design and attatched to a tab welded to the tube going across and around the main hoop horizontal bar. Holds very well.

 

[dremu]

Got any pics or sources to buy?

http://store.summitracing.com/partd...1&part=BOB-50502-19-23&N=700+115&autoview=sku

Summit lists a few for "wraparound" ... I imagine Jegs does too.

Not that I have any idea what it's about, just though I'd search there for ya. Mine are bolt-on and this winter when I do the seats-into-the-cage thing I'm gonna weld bungs on, since I already have the harnesses.

-- A

 

[Skigirl]

Thanks. Looks like those are 5 point harnesses. In the pic above, they require tubing behind the front seat. I put mine in on the tubing B pillar as I don't have a tube horizontally behind the seat. If I did I think I'd go with a 5 point harness.