Ceiling mounting system

A ceiling mounting system for assembly with a building structure, the system including ceiling mounting means for mounting a ceiling in position, the ceiling mounting means including:

• a mounting channel having in cross section a web for mounting a ceiling panel, the channel also having two opposed generally upright legs having top edge portions, the upright legs extending upwardly from the web to the top edge portions, and an elongated support member arranged to be supported by the building structure and for extending transverse to the mounting channel, the elongated support member including a lower edge portion and support means integral with the lower edge portion, the support means comprising support tabs arranged to co-operate with and to directly support the top edge portions of said upright legs so that the mounting channel is directly supported by the elongated support member, suspension means for suspending the mounting means from the building structure, the suspension means including a suspension head, the mounting means having an associated suspension aperture, the suspension head being arranged to co-operate with the suspension aperture by passing through the aperture and, after relative turning, to resist disengagement so as to thereby supportingly suspend the elongated support member, the suspension head being provided at the lower end of a downwardly suspension leg, the suspension head being defined by a neck section of the suspension leg, the co-operating suspension aperture comprising an elongated slot in the support member through which the suspension head can be passed and subsequently rotated so that the head cannot be vertically withdrawn through the slot, the suspension head being provided with an upwardly extending projection and a co-operating recess being provided adjacent the suspension slot, the arrangement being such that the suspension head can be passed through the suspension slot, relatively rotated and then lifted so that the projection engages in the recess to resist turning of the suspension head back to the position where withdrawal of the suspension head through the suspension slot is possible.