Revolving door

A revolving door comprising:

• an at least partly cylindrical shell wall comprising an entrance, an exit and two rotatable door wings, which during normal operation are disposed inside the at least partially cylindrical shell wall and oriented along or parallel with the diameter of the circle formed by the cylindrical shell wall of the revolving door,
• wherein between the at least partially cylindrical shell wall and an end of at least one of the two rotatable door wings, a sliding door is of a length adequate of extending at least partially across the entrance or the exit respectively,
• wherein the sliding door comprises two adjacent separable sliding door parts,
• wherein the two adjacent separable sliding door parts are movable away from each other in an emergency situation to provide a free and unobstructed passage way through the entrance or the exit,
• wherein the end of the at least one rotatable door wing is movable closely adjacent to and along the at least partially cylindrical shell wall leaving sufficient room for the sliding door to move between the at least partially cylindrical shell wall and the end of the at least one rotatable door wing, and that during normal operation the two adjacent separable sliding door parts of the sliding door are connected to each other, whereas simultaneously during normal operation the end of the at least one rotatable door wing is constantly positioned adjacent to the sliding door and between the lateral edges of the sliding door without being connected to the sliding door.