A system for fixing a closing element to a stationary supporting structure, the system comprising:
- a pair of clamping elements positioned on opposite sides with respect to the closing element to lock the closing element, each of the clamping elements comprising a lower surface, each of the clamping elements comprising a first and a second inner side surface facing the closing element;
- a hinge interposed between the clamping elements, the hinge comprising:
- a fixed element configured to be anchored to the stationary supporting structure;
- a movable element configured to be anchored to the pair of clamping elements, so as to move unitarily with closing element,
- wherein the movable element includes a hinge body defining a first axis, the hinge body being box-shaped with an upper surface facing the lower surface of the clamping elements, the hinge body comprising a pair of side surfaces opposite and perpendicular with respect to the upper surface, the side surfaces facing the clamping elements,
- wherein the fixed element comprises a pin defining a second axis perpendicular to the first axis, and a fixing plate defining a third axis, the fixing plate comprising a first face configured to be anchored to the stationary supporting structure and a second opposite face comprising a seat configured to house the pin, and
- wherein the hinge body and the pin are rotationally coupled to each other so as to rotate mutually around the second axis between an open position and a closed position;
- a coupling means for the mutual coupling of the clamping elements,
- wherein the first and the second inner side surfaces of the clamping elements including at least one of a male or female element, the opposite side surfaces of the hinge body including an equivalent number of male or female elements, and
- wherein the male or the female elements of both the clamping elements and the hinge body are mutually engageable for guiding the clamping elements;
- and
- an adjustment grub screw locking the hinge body to the clamping elements,
- wherein the adjustment grub screw passes through one of the clamping elements to abut against a respective side surface of the hinge body, so as to adjust a position of the fixing plate in relation to the hinge body.