2. Part 2
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Problem statement:
Innovation and the future of a standard
wheelchair.
Benefits:
Safety, Convenience, Multifunctional and Cost
Optimized.
IFR: To design the future wheelchair - which
will be the safest to use, highly convenient
and multifunctional to cater for both standard
and sports usage.
5. 9-Window Thinking
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Past Present Future
Super System
Human-aided Self-controlled Electronic control
System
16th
century
wheelchair
Current wheelchair Future wheelchair
Sub-System
Wooden seat Padded seat Ergonomic seat
6. TRIZ Tools Used
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Ideality – To define the ideal final result
Function Modeling - To describe how the system works
Contradiction Matrix – To determine which of the 40 inventive
principles that contribute to the improvement
8. Contradiction Matrix
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15. Durability of moving object 1. Weight of moving object
34. Ease of repair
29. Pneumatics and hydraulics
10. Preliminary action
27. Cheap short-living objects
14. Strength
29. Mechanics substitution
27. Cheap short-living objects
18. Mechanical vibration
40. Composite materials
Worsening
Features
Impr
ovin
g
Feat
ures
9. Ideas/Solutions of the Future Wheelchair
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Lighter, and higher durability frame made
from composite material.
Shock absorbers/suspension system.
GPS navigation/tracking.
Early warning for falling down incidents.
Multi-functional: standard and sports
wheelchair in one.
10. Ideas/Solutions of the Future Wheelchair
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Lighter, and higher durability frame made
from composite material.
Shock absorbers/suspension system.
GPS navigation/tracking.
Early warning for falling down incidents.
Multi-functional: standard and sports
wheelchair in one.
