Anti-fall safety system intended to prevent the detachment of a first component with respect to a second component of an opening and closing system, wherein the first component and the second component are constrained to each other by a reciprocal retainer, in such a way that the first component is mobile with respect to the second component, the safety system having an at least partially flexible elongated means which is provided with at least one engagement element placed in correspondence of one end of the elongated means, the engagement element being intended to engage in correspondence of an engagement point, following the engagement the elongated means preventing the detachment of the first component with respect to the second component.

Anti-fall safety system intended to prevent the detachment of a first component with respect to a second component of an opening and closing system, wherein the first component and the second component are constrained to each other by a reciprocal retainer, in such a way that the first component is mobile with respect to the second component, the safety system having an at least partially flexible elongated means which is provided with at least one engagement element placed in correspondence of one end of the elongated means, the engagement element being intended to engage in correspondence of an engagement point, following the engagement the elongated means preventing the detachment of the first component with respect to the second component.

Anti-fall safety system intended to prevent the detachment of a first component with respect to a second component of an opening and closing system, wherein the first component and the second component are constrained to each other by a reciprocal retainer, in such a way that the first component is mobile with respect to the second component, the safety system having an at least partially flexible elongated means which is provided with at least one engagement element placed in correspondence of one end of the elongated means, the engagement element being intended to engage in correspondence of an engagement point, following the engagement the elongated means preventing the detachment of the first component with respect to the second component.

A load-bearing accessory includes a hinge, a frame and a connector. The frame includes an adjustment portion and a support portion. The distance between the adjustment portion and the support portion is adjustable. A first end of the connector is connected to the hinge, and a second end of the connector is connected to the adjustment portion. One of the hinge or the frame that is located at the upper position of the load-bearing accessory is configured to support the connector, and the connector is configured to support the other one of the hinge or the frame that is located at the lower position of the load-bearing accessory.