TRUCK OWNER REASONS FOR OPPOSING REAR UNDERRIDE GUARDS
A "GEOMETRIC CONFLICT" OF INTERESTS
To be effective for the protection
of light vehicle passengers, and in order to avoid the beginning of the
"WEDGE EFFECT," rear underride guards must be, in addition to strong enough,
placed at a maximum of 400 mm from the ground on an unloaded truck. This
means a substantial reduction in the escape angle, which can create problems,
THE LARGER THE OVERHANG EXTENSION, if the road presents obstacles that
can hit the underride guard during normal traffic.
This means that when loaded, the
final height of the cargo tray can be reduced even more, which means an
additional reduction in the escape angle. It is, therefore, a GEOMETRIC
OBSTACLE that cannot be disregarded.
It is OBVIOUS AND IMPERATIVE that
a geometric artifice be used, since 400 mm must be respected as the maximum
height, in the name of human lives. Therefore, the underride guard structure
must rotate backwards in order to not break the guard in collisions with
the ground obstacles.
THIS KIND OF UNDERRIDE GUARD WAS
THE FIRST BUILT AND SUCCESSFULLY
TESTED BY THE UNICAMP "IMPACT PROJECT"! A PROTOTYPE HAS BEEN
TESTED ON 30,000 KM OF UNPAVED ROADS BY MERCEDES BENZ DO BRAZIL.