Backrest loading, stability and high tone - continued
V-Trak shells are designed to flex in use in order to provide a combination of support, stability
and freedom of movement. This flexibility can be modified, if required, by the use of shell
stabilisers. These are attached to the V-Trak arms and adjusted to reduce or eliminate the
rearward flexing of the backrest shell.
Extended Stabilisers (BM STX)
installed in the accessory holes on
the V-Trak arm and adjusted to
allow a limited amount of
movement
Stabilisers positioned against the
backrest to eliminate rearward flexing.
Locate the Anchor Loop inside the segmented
backrest cover at each side and pull through the
overlapping covers to expose the whole loop.
Backrest shells can be subjected to
exceptional forward flexing loads by
clients who use the backrest as a
stabilizing support when reaching
forward. If this behaviour pattern is
present, the following method must
be used to prevent possible damage
to the backrest caused by excessive
forward loads.
Attach the Anchor Strap to the loop using the
integral buckle. Thread the free end through the
Strap Fastener and close the fastener.
This strap must be released in order to remove
the backrest from the wheelchair.
Figure 46
Figure 47
Figure 48
Figure 49
Summary of Contents for Backrest
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Page 30: ...Choosing a backrest system...
