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Mark a lock / Building door lock system

Mark a lock
Mark a lock

Many glass doors of most buildings are closed for energy saving and security reasons.
But when necessary, these doors are opened occasionally, and it is very annoying to change the mark plate showing the state of the door. (Because the state of door is obscure, people push or pull the closed doors.)
‘Mark and lock’ shows ‘closed’ sign when you push the lever up, and shows ‘open’ sign when push it down.
Also, because locking apparatus is located at the center of door, we can close and open door easily comparing doors prevailing nowadays.

University

Korea University

Korea university
Gwacheon-si, South Korea

Professor Kim Hyun

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Design

Korea University

Korea university
Gwacheon-si, South Korea

Do-Heon Kim (Lead designer) Byung-joon Lee Yoo-Jin Choi

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