Modeled in SolidWorks 2012 Rendered in PhotoView 360

1. ABY THANNIKAL JOSEPH
ABY THANNIKAL JOSEPH
B.E. MECHATRONICS ENGINEERING
Mail @ abytjoseph@hotmail.com
Call @ +91 809 826 1593

2. Problem Statement
 To redesign a an existing wheel chair for a person to
perform easy locomotion and to reduce backpain.
Locomotion
Backpain
ABY THANNIKAL JOSEPH

3. Locomotion
Backpain
Better
manueverability
Ergonomic
design
ABY THANNIKAL JOSEPH

4. Our Design:
ABY THANNIKAL JOSEPH

5. Computer like seat
Disc brake
Height Adjustor
Brakes
Shock Absorber
Foot rest
Caster wheel
ABY THANNIKAL JOSEPH

6. FRONT VIEW
SIDE VIEW
TOP VIEW
ABY THANNIKAL JOSEPH

7. Technical data:
 Material : AISI 4130 (Stainless steel)
 Circular Cross Sectional Pipe
 Outer dia : 1”
 Thickness : 3mm
Length x Breadth x Height
124.8cm x 75.2cm x 94.0cm
Spring stiffness : 75,000N/mm2
Spring deflection : 9mm
Wheel Dia : 55cm
ABY THANNIKAL JOSEPH

8. Aesthetics:
‘Spine’ frame
The spine frame is based on the
Concept that the wheelchair acts as
a part to replace the missing body
Hence, the frame acts like an
extension to human spine.
ABY THANNIKAL JOSEPH

9. Ergonomics & Features:
 Rather than
conventional fixed seats,
computer chair like
seat is used.
 The user can ‘pushback’
the seat.
ABY THANNIKAL JOSEPH

10. Ergonomics & Features:
 An Adjustable
Inclination Setup is
provided
 This enables the user to
sit upright while
working on computer
and incline when resting
ABY THANNIKAL JOSEPH

11. Ergonomics & Features:
 A Shock Absorber is
provided in the
wheelchair
 This helps to absorbs
the shocks while on
uneven terrains
ABY THANNIKAL JOSEPH

12. Ergonomics & Features:
 An Adjustable
Footrest is also
provided.
ABY THANNIKAL JOSEPH

13. Features:
 A Disc brake is also
provided in the
wheelchair
 This helps to stop the
wheelchair in
emergency situations.

14. Manufacturability:
 Low cost parts
 The frame can be fabricated by :
Pipe Cutting => Pipe Bending => Pipe Welding
 Can be easily repaired in a bicycle shop
 Easily replaceable wheels (Standard bicycle wheels)
ABY THANNIKAL JOSEPH

15. FIRST PRIZE
CAD Modeling Competition
TetusuroFest v2.0
Department of Mechatronics
Sri Krishna College of Engineering
and Technology, Coimbatore
ABY THANNIKAL JOSEPH