| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding die for a contact lens of a new structure, which can stably seal the outer peripheral edge part of the molding cavity when both of male and female dies are joined. SOLUTION: Cylindrical fitting sections 22 and 32 which extend to one side of the axial direction are respectively provided on the outer peripheral part of a cavity-forming surface 20 for the male die 14 and on the outer peripheral part of a cavity-forming surface 30 for the female die 12. Then, a gap 52 which spreads extending to the total periphery is formed between the confronted surfaces in the radial direction of the cylindrical fitting sections 22 and 32 under a state wherein the male die 14 and the female die 12 are joined. At the same time, under the state wherein both of the male and the female dies 12 and 14 are joined, by deforming at least one of the cylindrical fitting section 32 of the female die 12 and the cylindrical fitting section 22 of the male die 14 in the radial direction, the gap 52 is made to disappear. Then, a sealed molding cavity 16 is defined between the cavity forming surfaces of both of the male and the female dies 12 and 14. |
