WFTW said:
ntsqd...I really like that idea...VERY innovative!!!
![Big grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I will be looking into that further. I do suppose you have a picture of that set-up do you?
I doubt that it ever was photographed as none of us thot much of it. We just solved that one and moved on to the next. It is no more complicated than it sounds. A footman's loop on each side of the footwell with a velcro strap to secure each leg at the ankle. We cut the velcro long enough that ~1" can be doubled back on itself to form an easy to pull tab.
I presume that the difference between the 4 point and the 5 point harness' being discussed is the crotch, or more properly, Anti-Submarine belt?
There is a very good reason for wanting the Anti-sub belt. With both of the shoulder belts adjustable for tension the wearer or someone else can really cinch them down. That pulls the lap belt up too high. You could tighten the lap belt until their legs were loosing circulation and you could still pull it up with the shoulder belts.
The Anti-Sub belt keeps this from happening. Normally they are intended to keep the occupant from sliding down and out from under the shoulder & lap belts, but in slow speed off road uses that is not nearly as important as holding the lap belt down out of the occupant's stomach.
In desert racing it extremely rare to see the "Twist to Release" type of seat belt latch. The over-center cam action hook latch is far preferred for dirty environs. The twist release's do not deal well with getting full of airborne grit.
At one time there was a coupler made for door bars that allowed the bar to hinge open. This was priamrily a street/strip drag race part. If they are still around one might be suitable for the shoulder harness cross bar. Could allow it to hinge up out of the way for rear seat access.
Another thing I see done commonly in slow speed off road stuff that experienced high speed folks don't do is level out the seat. The seat back should not be nearly verticle at it's most forward position. If the vehicle is operated with the seats like that the spine is unsupported in compression. By tilting the whole seat top to the rear the whole spine is in contact with the seat back and is supported by the seat back. Picture a position more like that of the driver of an F1 car.
This was something my para friend didn't understand until he bottomed out the truck at ~40 mph 2 miles into his first race. His back was sore for a week. Rolling the seats so that the seat back supports more of the occupant's weight does reduce leg room. It is very worth that sacrifice.