초록 ▼

A device for producing a polymerizable synthetic material optical lens, including a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with the shells (14A, 14B), the closure member (12) including a synthetic mat

A device for producing a polymerizable synthetic material optical lens, including a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with the shells (14A, 14B), the closure member (12) including a synthetic material wall (123) adapted to come into contact with the molding shells (14A, 14B) and the closure member (12) incorporating a molding material introduction passage (125) discharging into the molding cavity (15) through a casting opening (126); characterized in that the closure member (12) includes a seal (40) that forms the contact wall (123) and the introduction passage (125), which joint (40) is formed of an elastomer material and of a rigid insert (43) at least part of which has the elastomer material molded over it, the introduction passage (125) being inside the insert (43).

대표청구항 ▼

The invention claimed is: 1. A device for producing a polymerizable synthetic material optical lens, comprising: a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with said shells (14A, 14B), said closure mem

The invention claimed is: 1. A device for producing a polymerizable synthetic material optical lens, comprising: a closure member (12) that is adapted to grip two molding shells (14A, 14B) circumferentially to define a molding cavity (15) in conjunction with said shells (14A, 14B), said closure member (12) including a synthetic material wall (123) adapted to come into contact with said molding shells (14A, 14B) and said closure member (12) incorporating a molding material introduction passage (125) discharging into the molding cavity (15) through a casting opening (126); wherein said closure member (12) includes a seal (40) that forms said contact wall (123) and said introduction passage (125), which seal (40) is formed of an elastomer material and of a rigid insert (43) at least part of which has said elastomer material molded over it, said introduction passage (125) being inside said insert (43), and said insert (43) has an internal surface over at least a portion of which the elastomer material is molded. 2. The device according to claim 1, wherein said casting opening (126) formed in said elastomer material is a molded casting opening. 3. The device according to claim 1, wherein said casting opening (126) is buttonhole-shaped. 4. The device according to claim 3, wherein said introduction passage (125) has a portion (48) that converges towards said casting opening (126) that is entirely delimited by elastomer material. 5. The device according to claim 1, wherein said introduction passage (125) includes a recess (44) opposite said casting opening (126) that extends to a shoulder surface (47) and a portion (48) of said shoulder surface (47) that converges to said casting opening (126). 6. The device according to claim 1, wherein said insert (43) has the internal surface over a whole of the internal surface the elastomer material is molded. 7. The device according to claim 1, wherein said insert has an internal surface over which is molded a layer (54) of elastomer material of constant thickness. 8. The device according to claim 1, wherein said seal (40) includes a body (123) forming said contact wall and a stem (42) including said insert (43) projecting from a face of said body (123) opposite said molding cavity (15). 9. The device according to claim 8, wherein said insert (43) forms at least a portion of a lateral external surface of said stem (42). 10. The device according to claim 9, wherein said portion of the lateral external wall of said stem (42) formed by said insert (43) carries a screwthread (55). 11. The device according to claim 1, wherein said insert (43) includes a body (51) over part of which said elastomer material is molded and a head (52) over a whole of the head said elastomer material is molded. 12. The device according to claim 11, wherein said head includes an annular rib (57) between two grooves. 13. The device according to claim 11, wherein said head (52) includes an end (53) half way through a thickness of a body (123) forming said contact wall. 14. The device according to claim 1, wherein said seal includes a gutter-shaped body (123) forming said contact wall and rims (41) each flanking a respective rectilinear end of said body (123) and projecting radially from a face opposite said molding cavity (15). 15. The device according to claim 14, wherein each of said rims (41) has a face aligned with an edge of said body (123), said face and said edge together forming a surface having a sawtooth section. 16. The device according to claim 2, wherein said casting opening (126) is buttonhole-shaped. 17. The device according to claim 12, wherein said head (52) includes an end (53) half way through a thickness of a body (123) forming said contact wall. 18. The device according to claim 1, wherein said rigid insert (43) is formed from a thermoplastic material, said rigid insert (43) includes a body (51) and a head (53), and said elastomer material is molded only an inside of the body (51) and over a whole of the head (53). 19. The device according to claim 1, wherein said rigid insert (43) is machined from steel, said rigid insert (43) includes a body (51) and a head (53), and said elastomer material is molded only an inside of the body (51) and over a whole of the head (53). 20. A device for producing a polymerizable synthetic material optical lens, comprising: a molding cavity (15); two molding shells (14a, 14b); and a closure member (12) that is adapted to grip the two molding shells (14A, 14B) circumferentially to define the molding cavity (15) in conjunction with said molding shells (14A, 14B), said closure member (12) including a synthetic material wall (123) adapted to come into contact with said molding shells (14A, 14B) and said closure member (12) incorporating a molding material introduction passage (125) discharging into the molding cavity (15) through a casting opening (126), wherein said closure member (12) includes a seal (40) that forms said material wall (123) and said introduction passage (125), which seal (40) is formed of an elastomer material and of a rigid insert (43) at least part of which has said elastomer material molded over it, said introduction passage (125) being inside said insert (43), said seal (40) including a body (123) forming said material wall and a stem (42) including said insert (43) projecting from a face of said body (123) opposite said molding cavity (15), said rigid insert (43) is formed from a thermoplastic material or is machined from steel, said rigid insert (43) including a body (51) and a head (53), and said elastomer material is molded only an inside of the body (51) and over a whole of the head (53).