PRASANT P POST GRADUATE IN PRODUCT DESIGNE amp ENGINEER BANGALORE INDIA GOAL TO REDUCE DEPENDENCY OF PARAPLEGIC Paraplegics faces difficulties in hisher day to day activities Paraplegics ID: 527261
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DESIGN AND FABRICATION OF ELECTRIC WHEELCHAIR AND MODIFICATION OF SUITABLE TWO WHEELER FOR PARAPLEGICS
PRASANT P
POST GRADUATE IN PRODUCT DESIGNE & ENGINEER
BANGALORE
INDIASlide2
GOAL
- TO “REDUCE” DEPENDENCY OF PARAPLEGIC!!Slide3
Paraplegics faces difficulties in his/her day to day activitiesSlide4
Paraplegics?Slide5
A person who cannot move theirlower part of their bodySlide6
Improving the quality of life of ParaplegicSlide7
CAUSES
Stats of Fully Developed and Developing countrySlide8
Developed Country Ex., USA,
Centers for Disease Control and
Prevention (CDC
), 2004
Prevalence
Approximately
1.9% of the U.S. population, or some 5,596,000 people, reported some form of
paralysis based
on the functional definition used in the survey.
Approximately
0.4% of the U.S. population or some 1,275,000 people reported being paralyzed
due to
a spinal cord
injuryCauses of Paralysis and Spinal Cord InjuryThe leading cause of paralysis was stroke (29%), followed by spinal cord injury (23%) and multiple sclerosis (17%).Various types of accidents accounted for the great majority of spinal cord injuries.
Courtesy: www.cdc.govSlide9
Paralysis and Spinal Cord Injury in the United States
Courtesy:Slide10
Disabled persons constitute about 2 per cent of the total population in our country
.
Developing Country
Ex., India,
National
Sample
Survey
Organisation (NSSO), 2002
Villages
Urban
Number of
4637
3354
Atleast one disable person
45571
24731
Number of disabled persons
49300
26679
% age of population
8.40%
6.10%Slide11
The number of disabled persons
in the
country
was estimated
to
be 18.49
million during July
to December
, 2002. They formed about 1.8 per cent of the total population.About 10.63 per cent of the disabled persons suffered
from more
than one type of
disabilities.
For every 100000 people in India
, there were 1755 who were either mentally or physically disabled. Among the rural residents, the prevalence of disability was 1.85% and that among the urban, it was 1.50%. The rate
for males
was
2.12%
and 1.67% while that for females was 1.56 and 1.31 per cent in rural and urban India, respectively.Slide12
Mental Disability
Visual Disability
Hearing Disability
Speech Disability Only
Locomotor Disability Only
Multiple Disability
Any Disability
Mental Retardation only
Mental Illness only
Blindness only
Low Vision Only
Rural
2455
3643
4684
1756
5040
2757
23557
5408
49300
Urban
1387
1563
1958
787
2445
1279
14099
3161
26679
All India
3842
5206
6642
2543
7485
4036
37656
8569
75979Slide13
Difficulties faced by Paraplegics in their day to day activities
Commuting with the home/working place
Bathroom issues
Moving ON and OFF the bed
Automobile accessibility
Shopping, Parking and DressingSlide14
Difficulties faced by Paraplegics in their day to day activities
Commuting with the home/working place
Bathroom issues
Moving ON and OFF the bed
Automobile accessibility
Shopping, Parking and DressingSlide15
PROBLEM!!
WHEELCHAIR
2 WHEELERSlide16
ORIGIN
OF PROBLEM!!Slide17
EXISTING MEANSSlide18
SUPER SPLENDOR
http://www.wheelchairindia.comSlide19
TVS XL MODEL-
SIDE ATTACHMENT
SUZUKI ACCESS 125Slide20
DISCOVER FIX
ATTACHMENTSlide21
TRICYCLESlide22
MOPED FIX
ATTACHMENTSlide23
OBJECTIVE OF THIS PROJECTSlide24
This project aims at developing a low cost electric wheelchair which is capable of withstanding the rigors of the
road of India
and modifying a two wheeler available in the market so that electric wheelchair will be an integral part of the two wheeler enabling the paraplegic person to ride on the road
.
The Project involves making an electric wheelchair which combines an integral part of a two wheeler so that he can just attach his wheelchair to the road going vehicle without getting off of his wheelchair. Thus making him completely independent of any
external help.
The
project will be focused on
lowering cost
for fabrication part so that if it is manufactured on a large scale, the overall price of the entire unit will be low enabling those physically handicapped people who are cash strapped to purchase the unit .Slide25Slide26
Concept 1
Concept 2Slide27
Concept
3
Concept
4Slide28
Concept
4a
Concept
4bSlide29
Concept 4c
Concept
4d
(FINAL SHORTLISTED CONCEPT)Slide30Slide31Slide32Slide33
~3’Slide34
~2’Slide35Slide36Slide37Slide38Slide39Slide40Slide41Slide42Slide43
#
PART NAME
WEIGHT IN KG.
QUANTITY
COST IN RS.
1
Side Tube
3.398
2
142
2
Collar pivot
0.684
2
28
3
Bushing for collar
0.088
4
8
4
Cross member -1
2.928
2
123
5
U-Tube
2.308
1
97
6
U-Tube extension
0.486
2
21
7
Upper pivot for rear shock absorber
1.096
4
46
8
Seat frame angle piece
0.478
2
20
9
Controller frame flat piece
0.14
4
6
10
Arm rest flat piece
1.492
2
63
11
Tubing from front wheel fork
0.486
2
20
12
Seat pivot for back rest
0.016
2
1
13
Stop for back rest
0.069
1
3Slide44
14
Back rest lower plate
0.482
1
20
15
Rectangular tube for guide
2.521
1
106
16
Bushing for lock
0.708
4
30
17
Lateral square tube for guide
0.323
1
14
18
Rear lock
0.5
1
40
19
Battery frame
3.352
2
140
20
Battery farm support rod
0.2
2
10
21
Upper plate of back rest
3.2
1
135
22
Back rest lower plate
1.5
1
63
23
Swing arm
4.292
2
900
24
Swing arm pivot bolt rod
0.196
2
8
25
Swing arm pivot nut
0.016
2
4
26
Front fork
3.55
2
450
27
Shock absorber for front wheel
2.24
4
1210
28
Front smaller wheel
5.2
2
250Slide45
29
Shock absorber for rear wheel
3.52
4
1060
30
Rear electric powered wheel
20
2
11000
31
Controller frame flat piece
0.54
2
1100
32
Three way changeover switch
2.2
2
540
33
Dry cell batteries
30
6
6600
34
Accelerator with brake lever system
0.5
1
500
35
8 mts. Of wiring
1
1
1000
36
Brake drum
1
2
500
37
Sliding bracket(back)
1
2
50
38
Sliding fixed plate-1
3
2
250
39
Sliding fixed plate-2
8
4
336
40
Sliding inner plate
1.2
2
50
41
Screw rod for sliding
1.3
2
300
42
Handle for sliding mechanism
0.5
2
75
43
Top bracket for sliding mechanism
0.3
2
28
44
Sliding bracket(front)
1
2
50
TOTAL
27397Slide46
SCOPE FOR FUTURE WORKSlide47
Better interface with the controller as the existing system was just an adaptation from an electric cycle kit. Use of joystick with micro-controller controlled movement of the wheelchair will greatly enhance the driving pleasures
.
Use of alloy rims instead of
spoke
rims there by reducing the chances of wheel bends
.
Sliding mechanism for front wheels can be made hydraulic for ease of
use
The wheelchair can be made suitable for adaptation to all two wheelers in the market.Slide48
EXISTING PROBLEMSSlide49
Footrest portion
Time to assemble with 2 wheeler
Universal Design
!!!!!!!
Expand the adaptability to 4 wheeler Slide50