IBAN: IT36M0708677020000000008016 - BIC/SWIFT:
ICRAITRRU60 - VALERIO DI STEFANO or
594 chapter 64
Design choices for wheelchairs
FEATURE
DESIGN DETAILS
WHEEL SIZE AND POSITION
2 big wheels with 1 or 2
small caster wheels
INDOOR
OUTDOOR
one or
2 rear
wheels
rear wheel set
back to avoid
tipping backward
on slopes
Child’s weight
should be mostly
over big wheels.
4 small wheels
casters
for
easier
turning
• Large wheels let rider
push herself.
• Small caster wheels
allow easy turns (on
cement, not sand).
• For leg amputees,
rear wheels
must be
moved
back to
prevent
tipping
over
backward.
Very simple temporary
chairs can be made by
putting 4 wheels on an
ordinary wood chair.
chair leg
pin rod
3 big wheels
wheels
hand crank
and
steering
• You can use 3 bicycle
wheels.
• Some models have
removable front
wheels so that chair
can be easily changed
to have small front
wheels for use inside
the home.
ADVANTAGES
• Child can move
it herself if she
has hand and arm
control.
• Large wheels
go over rough
surfaces easier.
DISADVANTAGES
• takes up more
space
• harder to get in
and out of from
the side (because
wheels need to be
higher than seat
so that rider can
push herself)
• good only on
smooth floors for a
child who cannot
push or help
push his own
chair
• cheaper
• takes up less space
• easier to move child
in and out of.
• not good on rough
surfaces
• Child cannot move it
herself.
• creates dependency
• excellent for long
distance and rough
road travel
• can be used by
a person with
strength in one
hand only
• too big for use
inside home
• more costly
• more difficult to
make
Some riders have 2 chairs: one like
this for road travel, and a smaller
one for home or work.
BUILDING MATERIAL FOR FRAME
Steel tube
Whirlwind
wheelchair
See p. 622.
Wood
Healthlink
Worldwide
model
• Thin-walled electrical
conduit tubing can
be used—5/8 inch to
1 inch
diameter.
Healthlink
Worldwide
design, see
p. 604.
For wood design details,
see p. 615 and 620 and
references on p. 604.
wood chair
model
design p. 615
A strong, long-lasting,
fairly light chair can
be made better and
cheaper than most
commercial chairs.
• relatively cheap and
easy to make—mostly
wood, few or no
welds
• easy to
adapt and to
add special
supports or
tray tables
plywood model
design p. 620
• requires welding
skills, some design
ability, and a fair
amount of equipment
• a good chair for
a well-equipped
rehabilitation
center workshop
to build, but not a
family
• builders need to be
trained
• May not be as stable
and long-lasting as
other models.
(For tighter joints and
more adaptability,
use nuts and bolts
instead of nails.)
Disabled village Children
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zh_classical
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zh_min_nan
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zh_yue
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Static
Wikipedia 2006 (no
images)
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ab
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arc
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ba
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bar
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bat_smg
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bcl
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be
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be_x_old
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bg
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bh
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bi
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bm
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bn
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bo
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bpy
-
br
-
bs
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bug
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bxr
-
ca
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cbk_zam
-
cdo
-
ce
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ceb
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ch
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cho
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chr
-
chy
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co
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cr
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cu
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kg
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ki
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kv
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la
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lbe
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lg
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li
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lij
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lmo
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ln
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lo
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lt
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lv
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map_bms
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mdf
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mg
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mh
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mi
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mk
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ml
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mn
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mr
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mt
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mus
-
my
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myv
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mzn
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na
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nap
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nds
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nds_nl
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new
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nl
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no
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nov
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ny
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pa
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pag
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pdc
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pt
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quality
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rm
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rmy
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ro
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sa
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sah
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scn
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sco
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simple
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sk
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sl
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sm
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sr
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st
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wuu
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yo
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zea
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zh
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zh_classical
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zh_min_nan
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zh_yue
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