Hinge with elastic opening means for door leaves of furniture

A hinge for door leaves of furniture, which comprises a fixed part that can be connected to a body of a piece of furniture and a movable part that can be connected to a door leaf of the piece of furniture, the fixed part and the movable part being mutually connected in an oscillating manner by way of an articulation system that comprises at least one articulation axis and a rocker, the hinge comprising elastic means configured to open the hinge, which are functionally connected to said at least one rocker, wherein said fixed part of the hinge is shaped so that it can be inserted into a seat defined within the thickness of an upper or lower wall of the piece of furniture, said fixed part and said at least one rocker extending along a plane that is perpendicular to said at least one articulation axis, and

• further comprising a movable transmission element for transmission between said elastic opening means and said at least one rocker, said movable transmission element extending and being movable along said perpendicular plane and having a thrust surface that is shaped and arranged in order to act against a lateral contact surface of said rocker.