Abstract: Device for the closing and/or opening of a leaf, to be applied to a concealed hinge comprising two bodies articulated to each other through at least a pair of articulation arms and connectable respectively to a leaf and to a fixed structure, the device being intended to be associated with one of the two bodies of the hinge, the device including: a translating element engageable to/with an articulation arm of the hinge, at least one mobile group configured to cooperate with the translating element and which is mobile with respect to an element/structure which can be mechanically fixed to the hinge body to which the device is to be associated; elastic means acting on the mobile group to cause the movement of the mobile group and the translating element; the translating element, the at least one mobile group and the elastic means are configured and reciprocally arranged.

Abstract: A device for automatic closing of a door, to be applied to a hidden hinge having two bodies articulated with each other by a pair of arms and adapted to be constrained to one of the two bodies and to be inserted, together with the body, into a cavity obtained in the leaf, includes a translating element to be engaged with an articulation arm of the hinge; an elastic member interposed between a first element associated with the translating element and a second element associated with the body of the hinge, and configured to be loaded during the opening of the leaf and to cause the automatic closing of the leaf by releasing the stored energy; and a system that varies the preloading of the elastic member and is configured to modify the distance between the first and the second elements, between which the elastic member is interposed.

Abstract: A device for automatic closing of a door, to be applied to a hidden hinge having two bodies articulated with each other by a pair of arms and adapted to be constrained to one of the two bodies and to be inserted, together with the body, into a cavity obtained in the leaf, includes a translating element to be engaged with an articulation arm of the hinge; an elastic member interposed between a first element associated with the translating element and a second element associated with the body of the hinge, and configured to be loaded during the opening of the leaf and to cause the automatic closing of the leaf by releasing the stored energy; and a system that varies the preloading of the elastic member and is configured to modify the distance between the first and the second elements, between which the elastic member is interposed.