Patent ID: 8214973

Claim:
Furniture hinge of the type comprising a first and a second equalizers connecting, operatively to each other, a box-shaped body adapted to be fixed to a door of said furniture and a hinge arm adapted to be directly or indirectly fixed to a fixed element of said furniture, said first equalizers being pivoted to said box-shaped body through a first pin and to said hinge arm through a second pin parallel to said first pin, said second equalizer being pivoted to said box-shaped body through a third pin and to said hinge arm through a fourth pin, a flexure spring for restoring said door during the rotation of said hinge, said flexure spring being wound around a pin fixed to said hinge arm and having a first arm abutting against said hinge arm and a second arm abutting against a control cam present on said first equalizers, wherein said hinge has a contact surface between said control cam and said second arm of said spring which, during said rotation, moves along both the profile of said control cam and along the profile of said second arm of said spring, and in that said control cam has a curvilinear profile having a centre of curvature positioned at a distance from said second pin, said curvilinear profile being arched and having a constant radius of curvature that is smaller than the distance between said contact surface and the centre of oscillation of said first equalizer about said second pin.