A TOOLESS SELF CLOSING FLOOR GROMMET CLOSURE FOR CABLE OPENINGS

摘要

A floor grommet for use in building and office structures supplied with air conditioning via an under floor plenum. Specially directed flows of conditioned air from the plenum are optimized by limiting the undesired escape of air from the plenum into the space above the floor by way of leakage through floor openings (22) provided for the passage of power cables, data cables and the like. Floor grommets (23) installed in the cable openings comprise a surrounding frame (24) mounting sealing elements (40, 41, 90). The sealing elements are comprised of thin, flexible elements anchored at one end in the grommet frame and extending toward the center of the opening, from each side, to effectively close the opening against significant flow of conditioned air from the plenum below. Cables (46) passing through the grommet opening minimally deflect the flexible elements (44, 45) to limit the escape of conditioned air.