Display trolley has shelves mounted on pivots on uprights which are in turn mounted on pivots, so that they form a deformable parallelogram with the shelves

摘要

Display trolley has shelves (1) mounted on pivots (10.1-10.4) on uprights (2.1-2.4). These are in turn mounted on pivots (20.1-20.4) on the base (4) of the trolley, so that they form a deformable parallelogram with the shelves. The pivots (20.1-20.4) for the uprights are attached to vertical arms (5) which slide in mountings (40) on the base.