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HD Motion
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Technical Information
3.5 Backrest system
Two backrest systems are available for HD Motion,
Flexi-back and Solid back. Both come in 3 different
heights and have built-in attachment points for
trunk support mounts, chest harness mounts,
and belt mounts. A headrest mount is included as
standard.
The backrest system, whether Flexi or Solid, is
attached to the back frame by 4 brackets, see
Figure 27. The lower brackets are normally placed
at the same point regardless of backrest height
(a = 75 mm). The upper clamps are positioned to
suit the backrest height.
The backrest is mounted with carriage bolts from
the inside, through slots in the frame. The slots
give a height adjustment range of 60 mm. A plastic
washer is used between the back frame and the
backrest brackets. See page 0.1 in the Spare Parts
list for details.
When assembling a Flexi-back, start by releasing all of
the straps. Tightened straps can affect the width of the
Flexi-back such that it does not match exactly with the
back frame and thus assembly is made more difficult.
3.5.1 Back spacers
When a shorter seat depth is needed HD Motion can be
equipped with back spacers, see Figure 28. Back spacers
20 mm in length can be used without further modification
to the wheelchair. Longer back spacers require modified
armrests such that the armrest pad can be moved further
forward. Modified armrest can be ordered from HD Rehab.
When backrest spacers are used it is possible to move the
backrest brackets down (Figure 21). How much they can be
moved depends on the length of the spacers.
Figure 27.
Backrest brackets
Figur 26.
Flexirygg och Planrygg
Figure 28.
Back spacers
a
