Method for controlling a materials handling installation with securing of means of access for maintenance

Method for controlling an installation (1) for handling hollow bodies (2, 3), which comprises:

• a plurality of treatment units (4) for treating hollow bodies (2, 3);
• a system (7) for transferring hollow bodies (2, 3) between the treatment units (4);
• a covering (10) that defines a closed chamber (11) in which the treatment units (4) and the transfer system (7) are housed, this covering (10) comprising:
• a frame (12) that defines casings (14);
• door leaves each mounted on a casing (14) between an open position in which the door leaf provides access to the chamber (11) from the outside, and a closed position in which the door leaf prohibits access to the chamber (11) from the outside;
• for each door leaf, a system (17) for locking the door leaf in closed position;
• a computer (9);
• the method comprising the following operations:
• determining, by the computer (9), stopping of a treatment unit (4C) has occurred;
• determining, by the computer (9), a closed position of door leaves (15L) located adjacent an interface (27) between the detected treatment unit (4C) that is stopped and the transfer system (7);
• determining, by the computer (9), the transfer system (7) is in operation after the stopping of the treatment unit (4C);
• and
• sending, by the computer (9), a communication to lock the door leaves (15L) when the control unit (9) determines the door leaves (15L) are in a closed position and the transfer system (7) is in operation.