Revolving door for providing a passage way through a building wall and a method of operating the revolving door

A revolving door for providing a passage way through a building wall,

• the revolving door comprising:
• a wall structure arranged in the building wall, the wall structure comprising a first side wall section, a second side wall section, a floor section and a ceiling section;
• a rotational arrangement arranged in the centre of the wall structure;
• a number N door leafs attached to the rotational arrangement, the door leafs each having a peripheral edge along an upper edge, an outer lateral edge and a bottom edge, wherein the door leafs are arranged to create N compartments in a circular area where the circumference is defined by the outer wall structure and the peripheral lateral edge of the door leafs when rotated;
• wherein the revolving door is characterized in that
• at least part of the peripheral edge has a retractable sealing arranged to seal a gap between each door leaf and any section of the wall structure adjacent to the at least part of the peripheral edge, the sealing being arranged to be retracted when the door leafs are rotated and being arranged to be extractable when the door leafs are not rotated, further comprising:
• at least one retraction mechanism for retracting and extracting the retractable sealing;
• and
• a control unit in communication with a motor, the control unit being adapted to control the retraction of the retractable sealing based on a signal from the motor so that the retractable sealing is retracted when the motor is engaged for rotating the rotational arrangement and so that the retractable sealing is extracted when the motor is off or disengaged.