The document summarizes the design process for a luxury octopus-themed chair. The initial design included tentacle-shaped legs and an octopus head-shaped back support. The current prototype is more lightweight and features adjustable armrests, flexible back support, and tentacle-shaped legs and handles inspired by an octopus. Anthropometric measurements were used in the design, including the 95th percentile for seat back length and width and the 5th percentile for knee height, to accommodate people of varying sizes.

1. DD220M : Ergonomics Assignment 2
Using Anthropometry
for Chair Design
DESHMUKH UDAYRAJ
150101021

2. Inspiration for the Luxury Chair Design

3. Initial Idea
• Luxury chair with looks of an
Octopus
• Legs in the shape of tentacles
• Round Soft Back Support That
gives comfort as well as looks like
an octopus head

4. CURRENT PROTOTYPE
• MORE LIGHTWEIGHT
• ADDED SOFT CUSHION FOR HEAD COMFORT
• ADJUSTABLE ARM-REST WITHOUT THE
DISCOMFORT AT BOTTOM UNLIKE INITIAL
PROTOTYPE.
• LEGS & HANDLE ARE DESIGNED MORE LIKE THAT
OF AN OCTOPUS
ANTHROPOMETRIC DIMENSIONS ARE ON THE NEXT SLIDE

5. Soft Cushion
±3.5° Flexible Arm Rest112.5°
429.5mm
5%tile
650mm
429.6mm
5%tile
535.9mm
95%tile
Normal Cushion
502.9mm
5%tile
457.2mm
95%tile
The references used are given on the
next slide.

6. Details of the design
• The Seat back-length And Seat width are taken 95th percentile to
accommodate larger people
• While 5th percentile Knee Height is used for chair height to let
everyone’s legs touch the ground.
• The Head Cushion is used big so as to accommodate both 5th
percentile and 95th percentile group.
• The 112.5° angle is for relaxing posture.

7. Reference Used for the Chair Design

8. THANK YOU !
Deshmukh Udayraj
150101021