Overview of Technology  

1. Development Motive

     When Prime Minister Lee Nak-yeon arrived at Haneda Airport in Japan on the 22nd and 

     walked down the trap from the presidential plane, a strong rainstorm blew and the umbrella was overturned.

     (Source: JoongAng Ilbo 22 Oct 2019 - Korea)

2. Problem

     Rain is usually accompanied by wind, and umbrellas are particularly vulnerable to wind and can be damaged.

Differentiated Technology  

This technology is for WINDFREE air vent umbrella that is not damaged by strong wind.

Key Features

Feature 1 (Ventilation)

A wind venting passage in the shaft lowers the pressure by allowing strong winds to pass through.

Feature 2 (Velcro Cable Ties)

Velcro cable tie fastens a canopy and ribs to protect the canopy from being damaged by a strong wind at 90km/h (25m/s) inside the umbrella.

Feature 3 (Removable Top)

With a removable umbrella top, a user can assemble, disassemble, and repair each part of the umbrella by removing the Velcro cable tie from the umbrella canopy.

Specification  

FRAME          64cm x 8 / Fiberglass

WEIGHT        500g (about)

LENGHT        94.5cm

DIAMETER   114cm

SHAFT           phi 14mm / Aluminium