Schroth Racing All models - Competition Instructions - Manual (Page 11)

S
LED
T
ESTING WITHOUT
HANS ®
- 10 -
What may happen to your body and racing
harness:
without HANS ® system
¾ The forward pelvic movement will lower belt angularity, which can
result in submarining. If the initial angle is not within the suggested
range, submarining may result in severe internal injuries or death as the
belt rides into the soft tissue above the pelvic bone the liver and
kidneys. This scenario relates into a harness belt worn in a 4-point
configuration.
¾ The lap belt will slide into the corner of the bucket seat openings, and
incorrectly positioned adjusters will interfere with the seat. This may
cause the adjuster to loosen the lap belt or cut the webbing, thereby
significantly diminishing effective restraint and resulting in serious injury
or death.
¾ Lap belts perform best when their anchor points are located adjacent
to the seat width. Routing outward will increase the strap load resulting
in further elongation. The resultant stress may exceed the structural
strength of the racing harness or the anchor points. [E.g. a 45° routing
off the body will increase the load by approximately 40% compared to
the ideal routing].
¾ A shoulder belt adjuster positioned too high will ride further up and may
cut into the occupant’s neck, which could result in severe injury or
death. It also increases the likeliness of clavicle [shoulder] fractures.
¾ With the expected strap elongation and body compression it is likely
the head or chest will impact the steering wheel. Extreme head
deceleration loads, spine stress and neck tension may occur causing
basal scull and spinal fractures and resultant severe injury or death.
WITH
HANS ® SYSTEM
¾ The most effective way to reduce the risk of head and neck injuries is to
wear a HANS ® made by SCHROTH.
¾ Extremely long shoulder belts allow for extra elongation and head
movement and should be avoided.
¾ Long shoulder belts also provide more slack during the rebound
phase so the belts may slide off the occupant’s shoulders or HANS ® .
SCHROTH HANS ® specific restraints with lower elongation rates for
such strap lengths are designed.