easy deployable wheelchair raincoat using ladybug origami mechanism

1. Design of one-touch raincoat by
using ladybug wing’s Origami
Biomimetic engineering 2022
23조
조장 이육샛별(20211082), 김영훈(20161790), 김진구(20161797), 이찬우(20181241)

2. Ladybug Origami
https://www.youtube.com/watch?v=ws_D5nXOAJg
Rapidly
expandable
and
retractable
Excellent
compact ability

3. Use cases of Ladybug Origami
Foldable Solar Panel
- Biomimicry Global Design Challenge 2020
Unfolds solar panel wings at daytime, folds them into a case at night.
https://asknature.org/innovation/solar-lighting-solution-inspired-by-insect-wing-cases/
Self- Deployable glider module
- Research team at SNU
Wings are self-deployable very quickly, and folds them when crawling
on the ground.
https://pubmed.ncbi.nlm.nih.gov/33022627/

4. Limitations of current raincoat designs
Disposable raincoat
- Storage issues
- Garbage issues
Raincoat for special purpose
- Uncomfortable to wear and take off

5. Design reference
Baek SM, Yim S, Chae SH, Lee DY, Cho KJ. Ladybird beetle-inspired compliant
origami. Sci Robot. 2020 Apr 15;5(41):eaaz6262. doi: 10.1126/scirobotics.aaz6262.
< Origami mechanism of ladybug’s wings
Structure of ladybug’s vein to hold the weight.

6. Design process
We decided to use string And ladybug wing-shaped
vinyl
To perform
one-touch
raincoat!!

7. Prototype Sketch
1 2 3 4
Pull
Origami shaped
vinyl
Fold

8. Objectives
Take off/wearing several
times to show stability
Compare the speed of take off/wearing
speed to a normal raincoat
Obj.1 Obj.2

9. THANK YOU!
Group 23