Fold gate

How does fold gate work
2 panels are hinged to form a fold gate.
The fold gate is supported by top and bottom bearing pivot.
The roller and the channel constraint fold gate movement
Automated by Tousek closed-circuit hydraulic arms for remote control access.
(1) top bearing pivot; (2) hydraulic motor;
(3) telescopic arm; (4) channel; (5) bottom bearing pivot; (6) roller.