There is disclosed a central mechanically operated and operating roll-up strap system comprising a central operating element and one or more roll-up strap units connected thereto. The system further comprises mechanical signal transmitters provided between the operating element and the roll-up strap units, the central operating element being provided with a locking mechanism and a lever connected to said unlocking mechanism and said signal transmitters, which lever supplies mechanical release signals to the roll-up strap units via the signal transmitters in one position, while said locking mechanism is arranged to maintain the release signals until locking signals are supplied to the roll-up strap units via the signal transmitters as a result of the locking mechanism being operated. The system is preferably integrated in the floor of a vehicle.
