Hesperian Health Guides
Details of How to Make Wheel Chair Parts
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HEAVY-DUTY WHEEL HUBS
- A thick bolt should fit tightly inside bearing.
- Bearings should fit tightly inside outer steel tube.
- Carefully mark and drill the outer steel tube for spoke holes.
- Spacer tube fits over axle bolt and holds bearings against spoke heads.
Note: Used sealed bearings with a ⅝" inner diameter can often be obtained free or at low cost from electrical tool and appliance repair shops. These used bearings often last longer than standard wheelchair bearings.
|To attach the heavy-duty hub to a wood chair, you can weld the thick-wall tube to a metal plate.
The bigger the plate is the stronger the mount.
The metal plate can be bolted onto the wood.
CASTER FORK AND HUBS
Caster axle fits tightly inside bearings.
For slightly different designs, see:
piece of rubber hose
bent piece of flat bar
flat or round steel bar
bolt for attaching to frame
Or steel rod can be bent like this for the brake.
SEAT AND BACK MADE OF CANVAS (strong cloth)
Cut canvas twice as wide as seat or back, allowing 4 cm. extra on sides (for seams) and at least 20 cm. longer on length.
Sew canvas into a tube.
Tuck in, ends to add strength where wear is greatest.
Sew seams here.
Drill holes and screw rods to frame.
For designs of other wheelchair parts, see the following pages:
|seats and backs:
Examples of locally made wheelchairs
|The plywood wheelchair, with the armrest in place (left) and swung back (right).||A plywood wheelchair for a child with cerebral palsy with inner tube stretching aids to gently pull his feet and straighten his severe knee contractures.|
|A bamboo hand-powered tricycle made at Viklang Kendra (People’s Village), Allahabad, India.||A wheelchair made completely of paper, including the wheels. Paper is glued together using rice flour in water (Zimbabwe).||A wood design of the square tube wheelchair, two Healthlink wheelchairs, and a ‘trolley’ made from half of a plastic bucket and wood wheels.|
|A wood wheelchair in Thailand. The bicycle wheel axles are supported on both sides to keep them from bending.||A metal frame, wood wheel ‘trolley’ in Bangladesh. The rubber tube serves as a cushion and also as a toilet seat.||This trolley, also from Bangladesh, uses a cushion made of coconut fiber covered with rubber.|
For more examples of wheelchair designs, see:
- "The Changing Needs for Aids and Assistance",
- "Hip Contractures",
- "Corrective Positions",
- "Self Care",
- "Keeping Active",
- "Prevention of Contractures",
- "Child Development",
- "Toilet Training",
- "Understanding Children with Special Problems",
- A Story to be Used with: "Understanding Children with Special Problems",
- "Making Sure Aids and Procedures Do More Good Than Harm".