Mechanism for automatically actuating a rescue device upon opening of an exit door

Claim 1

Mechanism for automatically actuating a rescue device upon opening of a panel obturating an exit and bearing said rescue device and said mechanism, said panel undergoing a movement of lifting, or of rotation or of lifting combined with a rotation at the moment of opening, said mechanism comprising: a voluntary actuating member having a first and a second position; a control bar connected to said rescue device and substantially parallel to said panel; a movable assembly actuated by said actuating member, said movable assembly being releasably connected to said control bar and adapted to push or draw said control bar, so that said control bar can occupy a first end position remote to said panel when said actuating member is in its first position and a second and position near said panel when said actuating member is in its second position; fork elements freely supporting said control bar in its first end position; said mechanism being associated with hook elements fixed to the periphery of said opening and adapted to receive said control bar in its second end position, said control bar being transferred by said movable assembly from said fork elements to said hook elements when said voluntary actuating member moves from its first position to its second position.