Abstract: A platform assembly includes a first platform module having an elongated front face, a second platform module having an elongated front face, a locking member for locking the front faces of the first and second platform modules to each other when they are set against each other, which locking member is movably mounted on the first platform module.

Abstract: The invention relates to an elevator car comprising a support frame, a floor structure and a ceiling structure, as well as at least one car door, and side walls extending between the floor structure and the ceiling structure, wherein the side walls are formed from several wall elements, which are aligned end-to-end or end-to side in corners, wherein the wall elements are composite panels consisting of at least one support material and at least one noise insulating material, that the elevator car comprises at least one flatbar, extending over the surface of both adjacent wall elements, and covering the joint between them, which flatbar comprises or is connectable with fixing elements to at least one of both adjacent wall elements. Via this means the joint between two noise insulating wall elements does prevent any essential noise leakage.