Closure sequence control arrangement for double doors

A closure sequence controller for first and second door leaves pivotable with respect to a door frame, the first door leaf being provide with a first door closer and a first turning arm attached to the first door closer for closing the first door leaf, the second door leaf being provided with a second door closer and a second turning arm attached to the second door closer for closing the second door leaf, the closure sequence controller comprising:

• an elongate guide rail for mounting to the door frame,
• a first elongate sliding bar slidably positioned in the guide rail and functionally connected to the first door leaf in a manner such that the first sliding bar moves in response to pivotal movement of the first door leaf relative to the door frame, and
• a sequence control unit installed in the guide rail and functionally connected to the first sliding bar, the sequence control unit including a lock body structure defining a chamber through which the first sliding bar extends and having a guiding surface that is inclined with respect to the first sliding bar, a blocking member located in the chamber and movable therein against the guiding surface, and a biasing means for urging the blocking member in a direction towards a position in which the blocking member is clamped against the first sliding bar and prevents dosing of the first door leaf.