| 摘要 |
An adjustable connecting means for structural members of a suspended ceiling construction which is supported at least at its periphery and at its center and is capable of self-adjustment for ceilings of concave, convex, and horizontal configuration. A connecting means in which the edge portion of a central support member is provided with a plurality of open ended slots, the edge portion and slots being cooperable with a plurality of longitudinal structural members each having a vertically disposed web provided with flanges on opposite sides thereof, one end of the web having a sector shaped opening for reception of the edge portion and entry of a web portion inwardy of the sector shaped opening into a slot. Interengagement of the edge portion of the central support member and the adjacent end of the longitudinal structural member with a sector shaped opening interlocks the two members, provides fulcrums for relative angular movement of the two members and cooperate in such a manner that relative lateral movement between the two members is restricted, relative longitudinal movement of the two members is restricted in one direction, and relative movement between the two members in a vertical direction or in the plane of the web of the longitudinal structural member is permitted to provide a selected angular relation of the two members in accordance with the design of the suspended ceiling construction. Securement means are provided for securing the edge portion of the central support member to the longitudinal structural member in a selected relation.
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