Stack of U-profiled metal sheets has connectors fitted between pairs of profiles assembled to form box, connectors having slits, into which arms of profiles fit

摘要

The stack of U-profiled metal sheets (1, 5) has connectors (10, 10') fitted between pairs of profiles assembled to form a box. The connectors have slits (11, 11', 12, 12'), into which the arms (3, 3', 9, 9') of the profiles fit. An Independent claim is included for the use of the stack with other stacks on either side.