Power
Wheelchairs
How
does a power Wheelchair work?
The name suggests how a Power Wheelchair works. It works with
the electricity generated by a battery through motors, gears
and belts. The problem of plenty of choices available makes
it difficult to choose a Power Wheelchair.
The important decision one has to make here is a choice between
a manual wheelchair and a Power Wheelchair.
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Power
Wheelchairs are a boon to wheelchair users. They add power,
speed and comfort to the experience. Huge varieties and brands
to choose from for any individuals specific need. Plenty of
colors and styles to choose.
Physical
capabilities to be considered before going for a Power Wheelchair:
Deformities
Visual abilities
Mental state
Sitting posture
Sensory Level
Wheelchair transfer ability
Duration of time spent in the Power Wheelchair
Also
consider:
The accessibility at home and work place
Suits short distance travel.
Carrying in an automobile is a little tedious. (Vans
would suit better)
Dismantling or folding is also not so easy.
High maintenance cost
Cost of a Power Wheelchair could also be a factor.
These
are general suggestions. But if your individual necessity
suits an electrical wheelchair forget the above considerations
and go for it.
Parts
of basic Power Wheelchair:
Frame : Power Wheelchairs are mostly not foldable which
is constructed with a fixed frame. Still some companies offer
foldable Power Wheelchairs which use a cross brace frame.
Invention of light weight materials has considerable reduced
the weight of these wheelchairs. Still they are heavier than
manual wheelchairs.
Brakes
: The control unit through a joy stick or any other interface
controls the braking system in an Power Wheelchair. Brakes
engage automatically when the wheelchair is stationary or
switched off.
Tires
and wheels
Power Wheelchairs use Pneumatic, semi pneumatic or solid tires
are used. Like in normal manual wheelchair front two wheels
could be small caster wheels and the rear wheels bigger wheels.
Or all four wheels could be small caster wheels.
Control
system
Controls the speed, braking, turning abilities of a Power
Wheelchair. They use various interfaces like push buttons,
joystick, voice, sip-puf, head-chin, trackball, tillers, for
controls. Other special interfaces are also available for
individuals need with vendors who specialize in control systems
only.
Batteries
Rechargeable Lead acid, gel, or sealed wet batteries are used
in Power Wheelchairs. Mostly U1 group 24 batteries are used
because they can go longer between recharges. Two 12V batteries
are also common. Battery chargers come with the Power Wheelchair
when you purchase one.
Power
Wheelchairs with special features
Some Power Wheelchairs come with special features like tilt,
recline, elevating seats. Tilt almost takes the user to a
standing position for relaxation or stair climbing purposes.
Recline for relaxation purposes. Seat elevation for transfer
into a van or a car.
Click
here for a List of Leading Wheelchair Manufacturers
An
Power Wheelchair could cost anywhere between $3500 to $12000
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