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DYNAMIC
TESTING |
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Sled Impact Test AM9001
Amigo Classic Three-wheel Scooter
with Q'Straint Tie-downs and Restraint with 50th Percentile
Male Conducted by the University of Michigan Transportation
Research Institute.
Sled Test Setup
Test #AM9001
Wheelchair Restraint: Q'Straint 4-point tie-down
Occupant restraint: Q'Straint 3-point, lap and shoulder belt
Wheelchair type: Amigo Classic Three-wheel Scooter (70 lb)
Test Dummy: 50th percentile male (168 lb)
Orientation: Forward Facing
Sled Platform: 1/4" Steel plate
Desired crash pulse: 30 mph V
Desired sled deceleration: 20 G's
Test Results
Test #AM9001
Actual velocity differential: 29.9 mph V
Actual sled deceleration: 20.4 G's
Crash pulse duration: 77.9 msec
Peak force left lap belt: 1473 lb
Peak force shoulder belt: 2203 lb
Peak force right tether: 1516 lb
Peak resultant chest acceleration: 56 G's
Peak resultant head acceleration: 146 G's
Head injury criteria: 1170 |
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Conclusion
The Q'Straint three point belt restrained the dummy without
failure of any components. The forward excursions of the dummy's
head and knees were 26.5 and 14.5 inches respectively. Upon
rebound, the dummy became wedged between the molded seatback
and the right armrest.
The Amigo Classic three-wheeler
was secured effectively on the sled platform and moved forward
from its original position only about one inch during the impact
event.
The pedestal also remained in place and did not fail although
it did flex so that the mid-point of the seat pedestal moved
forward about two inches relative to the base during peak loading. |
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