Re: Harness mounting

[Glenn Lawton <lawtonglenn@gsmai.com>]

Hans-Juergen Schneider wrote: 
> The FIA has a webpage at http://www.fia.com
> Take a look at the regulation Art.253 in
> Appendix J of the International Sporting Code
> and you will find some recommended mounting
> procedures.

Thanks Hans for the pointer to the FIA page.
It took me some time to find exactly where Art.253 of Appendix J
was on this page, so for those interested it is at:
http://www.fia.com/regle/reg_tec/253-a.htm

BTW, it references Dwgs# 253-42,43,44,45, but I can't find them.

Here are a couple of excerpts from FIA regarding angle and attachment:

"In the downwards direction, the shoulder straps must be directed towards 
the rear and must be installed in such a way that they do not make an angle 
of more than 45° to the horizontal from the upper rim of the backrest, 
although it is recommended that this angle should not exceed 10°. 

The maximum angles in relation to the centre-line of the seat are 20° 
divergent or convergent. 

If possible, the anchorage point originally mounted by the car manufacturer
on the C-pillar should be used. 

Anchorage points creating a higher angle to the horizontal must not be used 
unless the seat meets the requirements of the FIA standard. 

In that case, the shoulder straps of 4-point safety harnesses must be 
installed on the rear seat lap strap anchorage points originally mounted by 
the car manufacturer. 

For a 4-point harness, the shoulder straps must be installed crosswise 
symmetrically about the centre-line of the front seat. 

A safety harness must not be installed on a seat having no head restraint or 
having a backrest with integrated head restraint (no opening between backrest 
and head restraint). "


I hope this helps.
Glenn Lawton