Wall-mounted ventilator grille has fixed and moving vane supports with slots for vane ends, adjustable relative to one another

摘要

The ventilator grille, designed to be fitted to a wall (7), has a series of horizontal vanes (4) between lateral uprights, the vanes being held parallel to one another by fixed (2) and moving (3) supports. The fixed supports are fastened to the wall, and the moving supports are adjustable relative to them to vary the gap between the vanes. Both supports have slots (201, 301) for the vane ends.