Hanger devices for interstital seismic resistant support for an acoustic ceiling grid

摘要

Hanger devices for a ceiling tile grid suspension system including a plurality of rigid, elongated seismic joists interposed between opposing walls of a room, spaced selected distances apart along a horizontal support plane, and hangers suspended from the respective joists to support a grid from the respective lower ends thereof.

主权项

1. A seismic hanger for mounting on a seismic joist to support a lay-in ceiling tile grid comprising:
a rigid lever arm, having an upper extremity and a terminal end, wherein the rigid lever arm comprises a steel channel and wherein the terminal end of the rigid lever arm is configured as a steel angle with only two faces to facilitate attachment to a lay-in ceiling tile grid; a bracket affixed to the upper extremity of said rigid lever arm such that said rigid lever arm projects downwardly from said bracket; said bracket comprising a top flange and a bottom flange, wherein said top flange and said bottom flange form a front nesting face, said front nesting face having a height, wherein the height of the front nesting face is substantially the same as a height of a seismic joist; wherein the seismic hanger is rigidly mountable on the seismic joist such that when mounted, the front nesting face of the bracket is in proximity to the seismic joist such that the top flange is affixable to a top face of the seismic joist and the bottom flange is affixable to a bottom face of the seismic joist; and wherein when the seismic hanger is mounted, the terminal end of the rigid lever arm is affixable to a lay-in ceiling tile grid.