Door apparatus and parking apparatus equipped therewith

A door apparatus for closing an access opening, the door apparatus comprising:

• two vertically oriented guide rails laterally delimiting the access opening;
• an outer door element displaceably supported in or on a vertically oriented outer guide of the guide rails;
• an inner door element displaceably supported in or on an inner guide of the guide rails, wherein the guide rails extend in a parallel manner adjacent to the outer guide,
• wherein, in a closed position of the door apparatus, the inner door element is arranged in a first region of the access opening and the outer door element is arranged in a second region of the access opening, the first region being located lower than the second region, and
• wherein, in an open position of the door apparatus, the outer door element and the inner door element are arranged in a third region of the access opening, the third region being higher than the first and second regions;
• a locking element for bringing about a blocking state, wherein, in the blocking state, the locking element blocks a displaceable bearing of the inner door element relative to the guide rails in the closed position;
• and
• a coupling element on the inner door element and cooperating with the outer door element, or on the outer door element and cooperating with the inner door element, such that the locking element blocks a displaceable bearing of the outer door element in the blocking state relative to the guide rails indirectly via the inner door element.