IBAN: IT36M0708677020000000008016 - BIC/SWIFT:
ICRAITRRU60 - VALERIO DI STEFANO or
596 chapter 64
FEATURE
TIRES
Pump-up with
air ‘balloon’
tires
Solid tires (standard
wheelchair wheels)
DESIGN DETAILS
• Bicycle tires and tubes
work well for the large
wheels—20 inch (51 cm.),
24 inch (61 cm.), or
26 inch (66 cm ), wide or
narrow.
Puncture-proof inner
liners may be available.
Buy from wheelchair
supply center to fit
diameter and width of rim.
ADVANTAGES
• softer ride
• easy to replace
• wide tires good for sand
and rough ground
• narrow tires better on
smooth, paved roads
• no flat tires
• good for speed
on very smooth
surfaces
Rubber hose inside
bicycle tire
Thin strip of
old car tire
• Overlap ends
and cut at 45°
angle
• Fit hose
into tire.
• Cut strip in wedge
shape to fit rim.
• Wire ends
together
Large machinery fanbelt
(discarded)
Piece of old bicycle or
scooter tire
• Use old power belts or
fan belts from industrial
machinery or tractors.
Cut to fit and wire ends
together.
• used for middle-sized
or small wood wheels
• Notch edges, glue, and
nail to wheel.
• no flat tires
• softer ride than with
solid tire
• cheap
• no cost
• long-lasting
Sink bolt
head,
Wire ends
together. and/or
bolt the
ends.
• no cost
• long-lasting
• wedged to fit
wedge rim
• cheap
• If heavy tire is used it
may last a long time.
• Protects edge of wood
wheel.
BIG WHEELS
Standard factory-made
wheelchair
wheels
Bicycle wheels (rims
and spokes)
/
Bicycle rims with wooden
spokes
• Buy to fit chair.
• available from wheelchair
dealers
• 24 inch (61 cm.) or
26 inch (66 cm.) rims
for adults
• 20 inch (51 cm.) rims for
small children (may be
hard to find)
• For children, standard
thickness spokes may be
enough.
• For large persons,
heavy-duty spokes may
be needed.
• notched wood cross-
pieces on a triangular
wood base can be
greased and used as the
hub
• little work needed (if
they are bought to fit
standard hubs)
• May come fitted with
hand push rim.
• less costly than
standard wheelchair
wheels
• available in different
sizes and widths
• no need to know
how to fit spokes
• works with wood
hub
DISADVANTAGES
• Puncture (hole in tire) may
occur— especially on
rough roads.
• more costly than some
other tires
• wears out sooner than
solid tires
• costly
• hard to replace
• very hard, bumpy ride on
rough surfaces
• very narrow—sinks into
sand
• Flattening of tire where
it touches ground
means it moves slower,
and is harder to push.
• bumpy ride
• difficult to fit
well on rim and to
fasten ends firmly
• bumpy ride
• difficult to fit
• may be hard to find at the
right width
• hard, bumpy ride
(but softer than on
wood wheel alone)
• may tear off
• costly
• may be hard to find
• wide-wheeled models
often not available
• may not hold up on rough
ground
• poor quality
bearings
• Putting on and lining up
spokes takes time and
skill.
• axles weak (but stronger
ones can be adapted)
• Rim may easily get
bent—especially on rough
roads.
• hard to line up evenly
• Hub wears out easily.
Disabled village Children
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uk
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vo
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wa
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war
-
wo
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wuu
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xal
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xh
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yi
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yo
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za
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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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Static
Wikipedia 2006 (no
images)
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-
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arc
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-
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-
az
-
ba
-
bar
-
bat_smg
-
bcl
-
be
-
be_x_old
-
bg
-
bh
-
bi
-
bm
-
bn
-
bo
-
bpy
-
br
-
bs
-
bug
-
bxr
-
ca
-
cbk_zam
-
cdo
-
ce
-
ceb
-
ch
-
cho
-
chr
-
chy
-
co
-
cr
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crh
-
cs
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csb
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cu
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cv
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cy
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da
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de
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diq
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dsb
-
dv
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dz
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eml
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ext
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fa
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fur
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got
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it
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ka
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kaa
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kab
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kg
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ki
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kj
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km
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kn
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ko
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kr
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mg
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pa
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pag
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pam
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pap
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pdc
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pl
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pt
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qu
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quality
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rm
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rmy
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rn
-
ro
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roa_rup
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roa_tara
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ru
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rw
-
sa
-
sah
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sc
-
scn
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sco
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sd
-
se
-
sg
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sh
-
si
-
simple
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sk
-
sl
-
sm
-
sn
-
so
-
sr
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srn
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ss
-
st
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stq
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ta
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tet
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tg
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tk
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tl
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tlh
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tn
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to
-
tpi
-
tr
-
ts
-
tt
-
tum
-
tw
-
ty
-
udm
-
ug
-
uk
-
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-
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-
ve
-
vec
-
vi
-
vls
-
vo
-
wa
-
war
-
wo
-
wuu
-
xal
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xh
-
yi
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yo
-
za
-
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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zu
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