Importance

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Abstract

What is described is a hinge device for connecting the sides (2) to the fronts of spectacle frames (4), comprising a first and a second hinge element (6, 7) pivoting about a hinge axis (X), the first element (6) comprising a substantially fork-shaped body (8) with a first and a second arm (9, 10) opposed to one another, between which the second hinge element (7) is interposed, and a screw means (16) forming a hinge pin, passing through respective holes formed coaxially in the first and the second hinge element (6, 7), so as to be, respectively, locked by a screw engagement in the first hinge element (6) and housed rotatably in the second hinge element (7). The device further comprises at least a first anti-seizing sleeve (18) provided in the hole (13) of the second hinge element (7) and capable of being engaged by the hinge screw (16) in a rotatable coupling, the sleeve (18) comprising at least a first surface (20) extending in a contact area and capable of relative sliding between the hinge elements (6, 7), at least one ring (22) of elastically flexible material, fitted on the hinge screw (16) and capable of being deformed elastically as a result of the tightening of the screw so as to exert a relative pressure between the first and the second hinge element (6, 7), thereby increasing the friction provided between the hinge elements, and at least one bush (23) mounted in a seat of the first hinge element (6), coaxially with the hinge screw (16), and capable of accommodating the ring (22), the bush (23) including at one of its axial ends a bearing shoulder (24) for the ring (22), and being capable of making contact with the first surface of the anti-seizing sleeve (18), so that the bush (23) is biased axially against the sleeve (18) by the elastic action generated by the friction ring (22) as a result of the tightening of the hinge screw (16).

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First Claim