A guideline for the design of a four-wheeled walker.pdf

Downloaded by [University of Sheffield] at 14:02 15 February 2012
e/b
e/b
Configuration #2
Wheel base = 40 em Wheel base = 40 em
sib
-20 ·10 0 10 20 30 40 50
10 12 13 14 15 16 18 19 +
20 13 14 15 16 18 19 + +
30 14 15 16 18 19 + + +
40 15 16 18 19 + + + +
50 16 18 19 + + + + +
60 18 19 + + + + + +
70 19 + + + + + + +
Wheel base = 50 em Wheel base =50 em
sib
-20 ·10 0 10 20 30 40 50
10 18 12 13 14 14 16 18 19
20 11 13 14 14 16 17 19 +
30 13 13 14 16 17 19 + +
40 13 14 16 17 19 + + +
50 14 16 17 19 + + + +
60 16 18 19 + + + + +
70 18 19 + + + + + +
Configuration #3
u =0.4 u =0.8
Wheel base =40 em Wheel base =40 em
20 30 40 50 50
11 13 16 + +
11 14 17 + +
e/b 13 15 18 + e/b +
13 16 19 + +
14 18 + + +
16 19 + + +
18 + + + +
Wheel base =50 em Wheel base =50 em
30 40 50
11 14 16
12 14 18
e/b 13 16 19 e/b
14 17 +
15 19 +
16 + +
19 + +
124 ASSISTlVE TECHNOLOGY, VOL. 9, NO.2