Door arrangement comprising a transfer chute having two rotation axes

A door arrangement for a first enclosed volume allowing a sealed connection between said first enclosed volume and a second enclosed volume, comprising:

• a flange arranged to define a passage opening, defining an opening plane and a passage axis perpendicular to the opening plane, in the first enclosed volume,
• a door pivotably mounted on the flange so as to pass from a closed position in which the door closes the passage opening to an open position, and
• a chute for discharging components, movable between a discharge position in which the chute is positioned facing the passage opening to receive and pour the components from the second enclosed volume into the first enclosed volume when the second enclosed volume is connected to the first enclosed volume and a position spaced apart from the passage opening,
• characterized in that the discharge chute is fixed to the flange by means of a first double-jointed link mechanism comprising a first joint arranged to allow rotational movement about an axis parallel to the passage axis of the passage opening and a second joint arranged to allow rotational movement about an axis perpendicular to the passage axis of the passage opening;
• and
• characterized in that the discharge chute is displaced from its spaced apart position to its discharge position by driving the first joint, then the second joint, and vice versa to move the discharge chute from its discharge position from to its spaced apart position.