15-10
Twist Owner’s Manual
OM_TWIST_0811RevA
CHAPTER 15: TRANSPoRTATioN oPTioNS
3. The pelvic belt should be worn low across the front of the pelvis so that the angle of the pelvic belt is
within the preferred zone of 30° to 75° to the horizontal. See Figure 15-7. A steeper (greater) angle
within the preferred zone is desirable.
Figure 15-7
Pelvic Belt Angle
Note:
Steeper side-view pelvic-belt angles are especially important if the pelvic belt is intended to be
used for postural support in addition to occupant restraint in a frontal crash. Steeper angles will reduce
the tendency for a vertical gap to develop between the user and the belt due to compliance of seat
cushions and belt movement, thereby reducing the tendency for the user to slip under the belt and for
the belt to ride up on the soft abdomen during normal use.
Note
: Steeper belt angles also reduce the tendency for upper torso belts to pull the pelvic belt onto the
abdomen during frontal impact loading.
4. The upper torso belt should fit over the shoulder and across the chest. See Figure 15-8.
5. Belt restraints should not be held away from the body by wheelchair components or parts, including,
for example, the wheelchair armrests or wheels. See Figure 15-8 for the correct position of the belt
restraints. See Figure 15-9 for the incorrect position of the belt restraints.
Summary of Contents for Twist
Page 1: ...SERIAL NUMBER ______________________ OWNER S MANUAL OM_Twist_0811RevA ...
Page 5: ...OM_TWIST_0811RevA Twist Owner s Manual iii No ...
Page 12: ......
Page 66: ......
Page 82: ......
Page 86: ......
Page 104: ......
Page 117: ......
Page 118: ......