Rim lock for eyeglasses, eyeglasses and method of assembly

1 . A rim lock for an eyeglass frame, comprising:

a screw which comprises a screw head and a threaded part, wherein the screw head comprises a screw drive; and

a casing comprising:

a first portion which comprises: a first side wall with mutually opposite outer and inner surfaces and a first hole extending between the outer and inner surfaces of the first side wall; a second side wall opposite the first side wall with mutually opposite outer and inner surfaces and a second hole extending between the outer and inner surfaces of the second side wall; and a hollow cavity arranged between the inner surfaces of the first and second side walls; and

a second portion which comprises a third hole;

wherein the hollow cavity is configured to receive the screw head with the screw drive facing the first hole, the screw head has a larger minimum diameter than minimum diameters of the first and second holes, the second hole is configured to allow the passage of the threaded part, and the third hole is at least partially threaded and configured to threadably receive the threaded part;

wherein the first portion and the second portion of the casing are configured to be coupled to the eyeglass frame to form an assembled configuration of the casing and eyeglass frame; and

wherein, in the assembled configuration, the outer surface of the second side wall of the first portion abuts an outer surface of a side wall of the second portion in which an opening of the third hole is defined.

2 . The rim lock according to claim 1 , wherein the first and second portions of the casing are two respective pieces which are configured to be joinable and separable with/from each other.

3 . The rim lock according to claim 1 , wherein the first portion of the casing further comprises a third side configured as a lateral side of the first portion arranged between the first side and the second side, wherein the third side comprises an aperture, the aperture being configured as a lateral access to both the second hole and the hollow cavity to allow the screw head to be laterally inserted into the first portion of the casing.

4 . The rim lock according to claim 1 , further comprising a surface which extends across the first and second portions.

5 . The rim lock according to claim 1 , wherein the casing is metallic.

6 . An eyeglass frame comprising at least one rim lock, the rim lock comprising a screw which comprises a screw head and a threaded part, wherein the screw head comprises a screw drive; and a casing comprising:

a first portion which comprises: a first side wall with mutually opposite outer and inner surfaces and a first hole extending between the outer and inner surfaces of the first side wall; a second side wall opposite the first side wall with mutually opposite outer and inner surfaces and a second hole extending between the outer and inner surfaces of the second side wall; and a hollow cavity arranged between the inner surfaces of the first and second side walls; and

a second portion which comprises a third hole;

wherein the hollow cavity is configured to receive the screw head with the screw drive facing the first hole, the screw head has a larger minimum diameter than minimum diameters of the first and second holes, the second hole is configured to allow the passage of the threaded part, and the third hole is at least partially threaded and configured to threadably receive the threaded part;

wherein the first portion and the second portion of the casing are configured to be coupled to the eyeglass frame to form an assembled configuration of the casing and eyeglass frame; and

wherein, in the assembled configuration, the outer surface of the second side wall of the first portion abuts an outer surface of a side wall of the second portion in which an opening of the third hole is defined.

7 . The eyeglass frame according to claim 6 , wherein each of the at least one rim lock joins a respective first part of the eyeglass frame to a respective second part of the eyeglass frame, and the first portion of the rim lock is attached to the respective first part, and the second portion is attached to the respective second part.

8 . The eyeglass frame according to claim 7 , wherein the eyeglass frame comprises two rim locks and further comprises two lenses, and each of the two rim locks is adjacent to a corresponding one of the two lenses.

9 . The eyeglass frame according to claim 7 , wherein first portion of the casing further comprises a third side forming a lateral side of the first portion arranged between the first side and the second side, wherein the third side comprises an aperture configured as a lateral access to both the second hole and the hollow cavity to allow the screw head to be inserted into the hollow cavity,

wherein the first portion of the casing is configured to be joined to the first part of the eyeglass frame by attaching the third side to the first part of the eyeglass frame after the screw head has been inserted into the hollow cavity through the aperture, such that, when in the assembled configuration, the respective first part of the eyeglass frame at least partially covers the aperture of the third side preventing the screw head from exiting the hollow cavity through the aperture.

10 . A method of assembly of a rim lock to an eyeglass frame, the rim lock comprising a screw which comprises a screw head and a threaded part, wherein the screw head comprises a screw drive; and a casing comprising:

a first portion which comprises: a first side wall with mutually opposite outer and inner surfaces and a first hole extending between the outer and inner surfaces of the first side wall; a second side wall opposite the first side wall with mutually opposite outer and inner surfaces and a second hole extending between the outer and inner surfaces of the second side wall; and a hollow cavity arranged between the inner surfaces of the first and second side walls;

a second portion which comprises a third hole;

wherein the hollow cavity is configured to receive the screw head with the screw drive facing the first hole, the screw head has a larger minimum diameter than minimum diameters of the first and second holes, the second hole is configured to allow the passage of the threaded part, and the third hole is at least partially threaded and configured to threadably receive the threaded part;

the method comprising the steps of:

attaching or fixing each of the first and second portion of the casing to the eyeglass frame to form an assembled configuration of the casing and eyeglass frame; and

screwing the screw into the third hole of the second portion of the casing;

wherein, in the assembled configuration, the outer surface of the second side wall of the first portion abuts an outer surface of a side wall of the second portion in which an opening of the third hole is defined.

11 . A method of assembly of a rim lock according to claim 10 , wherein the rim lock further comprises the first portion of the casing further comprising a third side forming a lateral side of the first portion arranged between the first side and the second side, wherein the third side comprises an aperture configured as a lateral access to both the second hole and the hollow cavity to allow the screw head to be inserted into the hollow cavity, the method further comprising inserting the screw head into the hollow cavity thorough the aperture of the first portion of the casing, before the step of attaching or fixing each of the first and second portion of the casing to the eyeglass frame.

12 . The method of assembly according to claim 10 , further comprising placing lenses in the eyeglass frame before screwing the rim lock's screw into the third hole.