Deployable sign

When opening the door, the pink sign moves close to the wall and has a vertical position.
When the door is closed, the pink sign moves out, creates an A angle with the wall and has a horizontal position.
Here A = 21.47 degrees.
Green, yellow, blue and grey stationary links create a 4-bar linkage.
Yellow 20 tooth gear is fixed to the yellow link.
Pink 15 tooth gear is fixed to the pink sign.
The video is made based on a request of a YouTube viewer from USA.

Видео Deployable sign канала thang010146