Stacking column has U-shaped cross-section, flaps being mounted inside this on shafts which fit into bushes mounted on column walls whose central section is bent back towards column

摘要

The stacking column has a U-shaped cross-section. Flaps (6) are mounted inside this on shafts (7) which fit into bushes (5) mounted on the column walls. The central section (8) of these is bent back towards the column walls.