| 摘要 |
A grille comprising a plurality of substantially spaced-apart bars, each of which includes in cross-section, a web portion, a flange at one end of the web portion that has parts that project laterally, relative to the web portion, and an enlargement at the other end of the web portion that forms beads projecting out from each face of the web portion and having faces generally perpendicular to the faces of the web portion and generally facing the projecting parts of the flange. A plurality of blades extend substantially crosswise of the bars, and the blades and bars are mutually slotted and are interfitted in egg-crate fashion. Each bar receives a blade retainer that is generally U-shaped in cross-section, has resiliently deformable legs, and is provided with a bead extending inwardly from each leg that is captured by the beads on the bars. One edge of each blade engages the outwardly projecting parts of the bar flanges, and the other edges of the blades are engaged by the ends of the legs of the blade retainers. |
