Good idea. Converts the compressional load that would otherwise be in the
spine to a compressional load in the U-shaped support. The base-fixing of
the support would obviously need to be strong enough to prevent it being
punched into the top of the seat back and have some thing to lock it into
place so that it did not rotate out of its optimum orientation. Or maybe fix
the top of the U to the belt itself; it could then rotate back, but not
forwards.
Duncan McF.
----- Original Message -----
From: "Edward Gladstone" <Ted_Gladstone@COMPUSERVE.COM>
Subject: Europa-List: Shoulder Harness - A Suggestion
<Ted_Gladstone@compuserve.com>
>
>
> Hi All,
>
> How about fitting a 1" Dia tube, bent like an inverted and flattened
"U",
> over each headrest ( like a miniature Roll Over Bar ) , that pivots
about
> the front top edge of the seat back and on either side of the head rest?
> The height would be such that the horizontal top of it was about 1" above
> shoulder height. It would fold back to the horizontal to allow you to
sit
> on the headrest while getting in and out, as usual. It would then be
> pivoted upright and the seatbelt placed over it before the seatbelt is
> taken over the shoulders. This device would resist the compression
> forces that would otherwise be taken by the spine in the event of an
> accident.
>
> Ideally it should be pivoted at the bottom of the seat back (i.e. at about
> the same position that the spine pivots) but this would necessitate it
> being much longer and have a lockable hinge, level with the top of the
seat
> back, to enable the top of it to pivot backwards, as above.
>
> As the seatbelt is free to slide over the tube there should be no levering
> effect leading to extra strain on the headrest seatbelt fixing.
>
> Any comments ?
>
> Ted
> G-ZTED
>
>
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