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Expand and Contract / Umbrella

Expand and Contract
Expand and Contract

The Expanded and Contracted Umbrella is an umbrella with an adjustable runner for expanding and contracting the wide of expanded rib.
A user can adjust the wide of expanded rib of umbrella in accordance with the stream of people.
The Expanded and Contracted Umbrella solves the umbrella-colliding problem in moment of heavy stream of people.

University

Ling Tung University

Ling Tung University
Taichung, Taiwan

YING-RU JHAO,
Ling Tung University