1) The document proposes a design for a one-touch raincoat inspired by the folding mechanism of a ladybug's wings. 2) Key features of the ladybug wing folding include being rapidly expandable and retractable with excellent compact ability, properties the design aims to mimic. 3) The proposed design would use string and ladybug wing-shaped vinyl cutouts that can be pulled to expand and folded to compact the raincoat for easy on and off in one touch, addressing limitations of current disposable and specialized raincoat designs.

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