Formula Cars are an interesting breed of vehicles to make safety
belts for.
Most vehicles have limited space to work with, and in many cases
drivers are
sitting on the attachment points for their belts making snap in
fittings
uncomfortable. From Schroth’s experience in Formula One, their Formula
belts
have continually evolved into what they are today.
A Traditional formula style restraint has a very unique method of
transferring load from the sub straps to the cam lock. The sub straps
are routed
through D-rings sewn to the lap belts and then wrapped around the
shoulder belt
hardware. This allows there to be no hardware between the driver’s legs
providing more comfort in the extreme confines of a formula car.
All points of a Schroth formula restraint are bolt in. All points
are wrapped
in to allow maximum flexibility. Some chassis require different bolt
sizes than
others and to combat that, Schroth has developed lap belt brackets
provided with
sleeves of varying Inner Diameters to accommodate the most popular bolt
sizes.
This design also allows the lap belt hardware to pivot freely and find
the best
geometry.
The HANS specific shoulder belts are designed to make HANS use safer
and more
comfortable. The belts start as 3" webbing at the cam lock, then after
the
length adjuster they are 2" webbing which fits completely on the HANS
yoke.
This gives you the optimal force distribution, entirely on the surface
of the
HANS. A standard 3" belt will work, however some of the load is not
distributed on the HANS. This also can be a comfort issue with some of
the
webbing falling off the HANS.
Another important feature of the HANS specific shoulder belts is the
ability
to move the anchor points towards each other to achieve the perfect
installation
geometry. This will help in the Post-Impact phase - very important in a
rollover
situation as well. This is much harder to do in a formula car where the
mounting
locations are generally in a fixed location, however just as important.
If you
are using a HANS device, the mounting geometry is paramount to its
effectiveness.
The Profi II Formula HANS features the 2" lap belt as well. The main
premise behind the 2" lap belt is one of added safety. A 2" belt rides
within the crest of the human pelvis where a 3" belt would rest on the
edges. This allows you to get the belt up to an inch and a half
tighter. That
means the lap belt will be working earlier in the accident event
because it gets
loaded faster. It's also more comfortable and easier to adjust becuase
there's
less friction through the adjuster.
One other feature of Schroth’s formula restraints is the absence of
a
length adjuster on the lap belt. This allows for use in very tight
confines
where such hardware would not fit. Length adjustment on the laps is set
at the
wrapped in end fitting.
Please order by part number:
Part Number |
Color |
sr 25083US |
Black |
sr 25183US |
Blue |
sr 25283US |
Red |