Installation of an assembly, in particular an intermediate floor in a vehicle

The assembly guides a belt (4) and/or a rope via a deflection part (6), where an end (4.1) of the belt and/or the rope is connected to a vehicle structure i.e. vehicle floor. Another end (4.2) of the belt and/or the rope is connected to the vehicle structure via a tie point (8) at a component to be decoupled i.e. intermediate base (2). A predetermined breaking point or a tear seam is provided in the belt and/or the rope to release the belt and/or the rope. The belt is designed as a belt strap. Another belt strap/rope (7) fixes the component to a vehicle.