Abstract: The invention concerns a method for mounting a sprung joint for the frame of spectacles, comprising a step which consists in placing a spring pin in a first component and a step which consists in articulating the first component to a second component through a pivot pin enabling a bow of the frame, integral with one of the components, to pivot relative to a surface of the frame integral with the other component. The invention is characterised in that it consists in: opening the first component by elastic deformation, inserting the spring pin into the first component, and closing the later around the pin so as to retain it by elastic pinching against the spring compression. Preferably, the first component is forcefully opened with the pin. The method enables to simplify mounting a spring joint wherein the pin is permanently retained in the first component even if the pivot pin is lost.

Abstract: The invention concerns a method for mounting a sprung joint for the frame of spectacles, comprising a step which consists in placing a spring pin in a first component and a step which consists in articulating the first component to a second component through a pivot pin enabling a bow of the frame, integral with one of the components, to pivot relative to a surface of the frame integral with the other component. The invention is characterised in that it consists in: opening the first component by elastic deformation, inserting the spring pin into the first component, and closing the later around the pin so as to retain it by elastic pinching against the spring compression. Preferably, the first component is forcefully opened with the pin. The method enables to simplify mounting a spring joint wherein the pin is permanently retained in the first component even if the pivot pin is lost.

Abstract: The invention concerns an elastic hinge for specticles frame comprising two fixed (5) and mobile (7) hinge elements, articulated about an axis of rotation (R) by a pivoting head (7A) of one (7) of the elements inserted in a pivoting head (5A) of the other element (5) and by a link (9) housed in succession in an inner passage (5D, 7D) of the two elements emerging into the pivoting heads. The invention is characterized in that each pivoting head (5A, 7A) has at the opening of the passage (5D, 7D) a stop member (B1, B2) on the outer side of the frame forming by the matching shape of one (B1) with the other (B2) a pivoting interface about a second axis of rotation (R′), the link (9) being arranged between the two axes of rotation (R, R′) when the bow is in a normal opening position. The hinge has two stable closing and opening positions as well as an additional unstable opening position.

Abstract: The invention concerns an elastic hinge for specticles frame comprising two fixed (5) and mobile (7) hinge elements, articulated about an axis of rotation (R) by a pivoting head (7A) of one (7) of the elements inserted in a pivoting head (5A) of the other element (5) and by a link (9) housed in succession in an inner passage (5D, 7D) of the two elements emerging into the pivoting heads. The invention is characterized in that each pivoting head (5A, 7A) has at the opening of the passage (5D, 7D) a stop member (B1, B2) on the outer side of the frame forming by the matchinmg shape of one (B1) with the other (B2) a pivoting interface about a second axis of rotation (R′), the link (9) being arranged between the two axes of rotation (R, R′) when the bow is in a normal opening position. The hinge has two stable closing and opening positions as well as an additional unstable opening position.—.