Greenhouse with plant trays located in different levels, has trays movable along sheet metal beams with vertical web part joined to upper and lower parts via slanting parts

摘要

The trays are movable along beams (10) with a single-piece construction made from sheet metal. The beam cross-section comprises a flat vertical web part (11) in the middle, a U-shaped lower part (14) with one of the arms connected to the web part via a lower slanting part (15) and a rounded upper part (12) connected to the web part via an upper slanting part (13). The greenhouse has an upper level for cultivation and a lower level for cultivation and storing trays. The beams act as rails for the trays to be rolled along.