| 摘要 |
<p>A marking system incorporated into a cross runner (12,14) for use in a suspended grid strucure extending within a walled enclosure, the grid structure supporting a plurality of ceiling tiles (28). A plurality of main runners (18) are suspended from a ceiling of the enclosure in parallel, spaced apart and elongated extending fashion. A plurality of interconnecting wall angles are secured to selected surfaces of the walled enclosure, each of the wall angles having an elongated body which includes, in cross section, a first side and a second side extending from an interconnecting edge with the first side. A plurality of the cross runners (12, 14)extend between a selected wall angle and a selected main runner (18), each of the cross runners (12,14) defining, in cross section, a tile support lip (48) and a web (50) extending in substantially perpendicular fashion from a midpoint of the support lip (48). A marking indicia is applied at selected intervals along each of the cross runners (12;14).</p> |
