Fabrication, Bracket for seat |
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Fabrication, Bracket for seat |
Randal |
May 14 2013, 06:34 PM
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#1
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
I've got to install a seat bracket before Cascade Lakes, otherwise I might not pass tech inspection.
Been looking at a number of different options. First of all here are a couple of pictures so you'll see how much space (and angles) I have to work with. Front view: From the back at the top: From the back looking down: Was thinking about making an L bracket that I can bolt to the seat (the 2.5" section between the holes for the seat belts. I'll use something like a carriage bolt with a rounded head on the drivers side of the seat. Found a couple of brackets for the roll bar that will work: Or use a couple of these with the same L bracket Coleman also makes a parallel one that might be easier to bolt up to the L bracket on the roll bar side. Good way or is there a better way. All ideas appreciated! |
ChrisFoley |
May 16 2013, 06:38 AM
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#2
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I am Tangerine Racing Group: Members Posts: 7,935 Joined: 29-January 03 From: Bolton, CT Member No.: 209 Region Association: None |
The SCCA rule predates the PCA rule.
I was at the PCA race, at Lime Rock. The story is a little different than Brant explained but pretty close. Specifically, the seat didn't fail, it was the aftermarket sliding seat rails. In any case, by SCCA rule, the seat must be able to withstand applied forces in side to side as well as fore-aft directions. FIA seats don't require the back brace if installed per manufacturer's instructions. Randal, how about a flat plate welded to the bar and a corresponding flat aluminum plate welded to the back of the seat. The seat plate would lay on top of the fixed plate so 2 bolt holes could be drilled thru. Advantage - no bolt heads inside the seat. |
Randal |
May 16 2013, 08:45 AM
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#3
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Advanced Member Group: Members Posts: 4,446 Joined: 29-May 03 From: Los Altos, CA Member No.: 750 |
The SCCA rule predates the PCA rule. I was at the PCA race, at Lime Rock. The story is a little different than Brant explained but pretty close. Specifically, the seat didn't fail, it was the aftermarket sliding seat rails. In any case, by SCCA rule, the seat must be able to withstand applied forces in side to side as well as fore-aft directions. FIA seats don't require the back brace if installed per manufacturer's instructions. Randal, how about a flat plate welded to the bar and a corresponding flat aluminum plate welded to the back of the seat. The seat plate would lay on top of the fixed plate so 2 bolt holes could be drilled thru. Advantage - no bolt heads inside the seat. Funny, but I woke up this morning thinking about how to minimize the bolt profile on the front of the seat and here you've already solved the problem. Nice work Chris. (IMG:style_emoticons/default/flag.gif) |
stownsen914 |
May 22 2013, 10:55 AM
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#4
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Senior Member Group: Members Posts: 916 Joined: 3-October 06 From: Ossining, NY Member No.: 6,985 Region Association: None |
I'm sure there are lots of opinions out there about the best way to secure a seat, but I prefer to bolt my (aluminum) seat to my seat back brace, which is welded to the cage in my case. The non-bolted variety should do the trick in a direct rearwared accident, but often hits are at oblique angles or the car is rotating in the accident. I'd think in those cases having having the seat secured to the seat back brace would be an added level of safety.
Scott |
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