Foldable wall suitcase structure and suspension of a side wall element of a foldable wall suitcase structure

Presented and described is a suspension (23) of a sidewall element (7,9,12,14) of a folding wall box body (1) of a commercial vehicle (N), preferably a truck, trailer and/or semi-trailer, with a carriage unit (24) for moving the suspension (23) along a longitudinal beam (20) of the commercial vehicle (N), a pivot unit (29) for pivoting the sidewall element (7,9,12,14) relative to the carriage unit (24), a mounting unit (27) for fastening the sidewall element (7,9,12,14) to the suspension (23) and a spring element (28) for pressing the sidewall element (7,9,12,14) against the longitudinal beam (20) of the commercial vehicle (N). In order for the cargo space to be utilized more effectively, it is proposed that the mounting unit (27) is held on the pivot unit (29) via the spring element (28).