An elastic hinge (10) for eyeglasses, comprising a female element (11), which is coupled to the front of the eyeglasses (12) and in which a bulbous wider head portion (13) of a male element (14) engages so as to provide articulation; the head portion of the male element is coupled with sliding friction contact on corresponding shoulders (16) formed within the female element (11), at the temple end, by a slot thereof through which the body of the male element passes; the hinge further comprises elastic elements (25) arranged within a recess of the temple, in which the male element is partially inserted, which act by traction between the male element and the bottom of the recess and move the head portion of the male element into abutment on the shoulders, generating contact coupling and moving the front surface of the temple into abutment on the front surface and the lateral surface of the female element.

Un procédé de montage d'une charnière élastique de monture de lunettes, comprenant une étape pour mettre en place un poussoir (1) à ressort (3) dans un premier composant (5) et une étape pour articuler le premier composant (5) à un deuxième composant par un axe de rotation et permettre à une branche de la monture, solidaire de l'un (5) des composants, de pivoter par rapport à une face de la monture solidaire de l'autre composant.

Selon l'invention, on ouvre le premier composant (5) par déformation élastique, on introduit le poussoir (1) à ressort (3) dans le premier composant (5), et l'on referme ce dernier (5) autour du poussoir (1) de façon à le retenir par pincement élastique contre la compression du ressort (3).

De préférence, on force en ouverture le premier composant (5) à l'aide du poussoir (1).

Le procédé contribue à simplifier le montage d'une charnière élastique dans laquelle le poussoir (1) est retenu en permanence dans le premier composant (5) même en cas de perte de l'axe de rotation.

A flexible ear-piece for eyeglasses, of the type with a ball elastic yielding mechanism, comprising an ear-piece (1), one of whose ends makes up the supporting end on the auricle of the ear, and the other one associates a small case (2), axially drilled to form a cavity (221), inside of which a compression spring (3) having one end resting on the bottom of said bole (223) is placed and the other end pushing a ball (4), said small case (2) offering a couple of hinging protrusions (23) among which, being hinged to them, a cam (5) as a part of an articulation for hinging to the eyeglasses front, said cam (5) retaining and pushing said ball (4).

Disclosed is an improved temple joint structure for permitting an associated temple (2) to be folded on the front of eyeglasses and to be unfolded and yieldingly expanded outward. The temple (2) is pivoted to the outer edge of the front or lens. The temple joint structure comprises a spring-biased tube (4) slidably fitted on a predetermined short length from the proximal or pivoted end of the temple. The spring-biased tube (4) has a coiled-spring (6) surrounding and extending almost the predetermined short length to urge the tube toward the outer edge of the front or lens. The outward expansion of the temple is permitted by depressing the coiled-spring (6) toward the pivoted end of the temple.

Elastic hinge structure for spectacle bars, capable of enabling said bars to be diverted into an extra-wide opening position, and comprising a bar associated to a first member provided with an axial seat for a spring and a sphere, in which there is provided a second member which is integral with the structure of the spectacles, wherein an end portion of such a second member is oriented towards said first member and has a cam-like contour.

Said members have respective mutually facing surfaces that are separated from each other when the bar is in a normally opened position and are on the contrary adapted to fittingly join by abutting against each other when said bar is brought into its position of widest possible divarication.

The first member is provided, at its end portion facing said second member, two mutually opposing wings arranged on respective outer edges of said first member, wherein said two wings are provided with two appropriate openings adapted to accomodate a pin acting as the fulcrum for sad cam contour protruding from said second member, said sphere being adapted to engage the recesses in said cam.

La partie face (1) de la monture de lunettes porte un corps (10) incrusté dans la résine synthétique, ce corps contenant un ressort (14) et une bille (15) et présentant des charnons (11) pour former une partie de charnière. L'autre partie de charnière est solidaire de la branche (2) et porte un profil de came (7) avec des encoches (8) et (9) pour définir la position repliée et la position d'ouverture normale de la branche. Un espace (22) en regard de l'extrémité avant de la branche permet de dépasser la position d'ouverture normale.

The hinge device comprises a box-like body (5) associable with the front of eyeglasses (3). The body (5) has two shoulders protruding therefrom and a seat (19) for a spring (20). A flange (23) of an L-like element is hingedly connected to the body (5) between the shoulders and adjacent the spring (20), another flange (25) of the L-like element (21) being connectable to a leg (29) of eyeglasses through a connection member (28). The device also includes an element (2) for connecting the body (5) to an eyeglasses front (1).