Hinge assembly for eyewear, eyewear comprising such a hinge assembly and method for assembling such a hinge assembly

Eyewear comprising:

• a front adapted to carry at least one lens, and two temples;
• two hinge assemblies each of which couples a respective temple to said front, wherein each hinge assembly comprises:
• an anchor element applied to said front of said eyewear;
• an anchor box applied to said temple of said eyewear, said anchor box comprising at least one housing chamber opened towards the outside and facing the anchor element, said at least one housing chamber having an inner retaining member;
• at least one hinging member having at least one end portion rotatably coupled to the anchor element and at least one shaft shaped portion extending towards the opposite side with respect to the at least one end portion, said at least one shaft shaped portion ending with at least one head portion being at least partially housed in at least one respective housing chamber;
• at least one elastic element being passed through by the at least one respective shaft shaped portion and being, from one side, in contact with the inner retaining member and, from the other side, in contact with the at least one head portion;
• wherein the hinge assembly can reversibly pass from a first stable opening position to a second stable closing position and vice versa and from the first stable opening position to a third unstable overtravel position and vice versa,
• wherein each end portion presents a protruding portion, each protruding portion extending from one lateral side of the respective end portion towards said housing chamber forming a respective notch.

A method for assembling a hinge assembly, the method comprising the following steps:

• providing an anchor element configured to be applied to a front of eyewear;
• providing an anchor box configured to be applied to a temple of the eyewear, said anchor box comprising at least one housing chamber opened towards the outside;
• providing at least one hinging member having at least one end portion and at least one shaft shaped portion, said at least one shaft shaped portion ending with at least one head portion, wherein each end portion presents a protruding portion, each protruding portion extending from one lateral side of the respective end portion towards said housing chamber forming a respective notch;
• passing the at least one respective shaft shaped portion through at least one respective elastic element and through a respective inner retaining member so that the at least one elastic element is in contact, from one side, with the inner retaining member and, from the other side, with the at least one head portion;
• inserting the at least one shaft shaped portion, the at least one head portion, the at least one elastic element and the inner retaining member in the at least one respective housing chamber;
• shaping an outer wall of the housing chamber in order to make a step shaped portion of the inner walls of the at least one housing chamber so that the inner retaining member is in abutment on the step shaped portion;
• and
• rotatably coupling the at least one end portion to the anchor element.