A kind of system for transverse movement, collection neutralizes the effort with limit, covering sheet and/or net protective structure (G, G) the row (F) of plant, wherein per an a piece of longitudinal side (104) with the longitudinal cable (2) for being fixed to a relevant row and have it is moveable be provided with another longitudinal side (204) or other suitable methods (5) of ring for this purpose upper fixed lateral hawser (3) above structure (G can be operated in, G) and, always for movement, this supports (204) to be fixed on lateral pulling cables (7), it is located above and preferably in a height slightly larger than fixed lateral hawser (3) described in height and fixation longitudinal cable (2) structure (G, G) in order not to interfering these fixed cables (2, 3). Additional and at least flexible cable (14) is provided below in piece (4), all or part of its can be fixed, but its be preferably movably together with pulling cables in the same direction as (7). These additional cables (14) have the function of maintaining the piece (4) in a convex portion at any time and ensure that lateral reduction that is complete and correcting overall size, retraction are folded in a manner of the just like bellows on every a line and be identical (4) in retracted position. Substantially to float between the cable between piece pulling cables (7) and additional cable (14) located above below, the friction and wear characteristic of anti-locking system during identical (4) extension and retraction.
