Invacare Matrx PB Manuel D'utilisation page 10

4.2 Head/Neck Support Attachments (Optional)
All Matrx PB backs contain a built-in headrest
plate which can be used for attaching optional
head and neck supports.
Two sets of headrest clamp mounting holes are
provided in order to install most standard types of
headrests (see Figure). If required, additional
holes may be drilled into the back pan and
headrest plate to mount the necessary hardware.
Installing a Headrest Clamp
WARNING
Headrests that have been fitted onto the Matrx PB back are not intended for use during
transport, and will not provide adequate support in the event of a crash. Users of wheelchairs
should be transferred into appropriate seating in vehicles for transportation and use be made of
the restraints made available by the auto industry.
The headrest plate is recessed into the back pan to prevent hardware from protruding into the
back cushion. Please ensure that the hardware from the headrest clamp does not extend beyond
this recessed area.
1. Open (pull down) cover and determine the
appropriate set of mounting holes for the
headrest clamp (drill new holes if necessary).
2. Close the cover and carefully punch holes
through the cover fabric that correspond with the
determined mounting holes for the headrest
clamp.
3. Open and pull down the front half of the cover
(enough to access the appropriate mounting
holes on the headrest plate).
4. Place the headrest clamp on the outside of the
back cover and push the mounting screws inward
through the fabric and through the headrest plate.
5. Secure (bolt) the headrest clamp into place and
close the cover.
4.3 One-Hand Cord Release Mechanism
1. Thread the nylon cord through the holes in the latch mechanism at the top of the left and right
mounting plates (see image A)
2. Install the cord lock mechanism onto the cord (see image B). Press the button to open the lock
mechanism and slide the two open ends of the nylon cord through the opening.
3. With the back properly installed on the wheelchair, adjust the cord length so that it hangs at
approximately a 35-45° angle along the back pan (this allows the release mechanism to operate more
effectively). If necessary, cut/remove excess cord to eliminate any risk of entanglement. Once
adjusted, combine the loose cord ends into a single knot to prevent the cord-lock from slipping.
 If the cord length was modified, carefully melt the ends of the cord to prevent fraying.
Invacare® Matrx® PB
Headrest Plate
Headrest Clamp
Mounting Holes
Headrest Plate
Back Pan
10
Headrest Clamp
1
Mounting Holes
2
FRONT
Part No 1176088