| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of easily and inexpensively manufacturing a spectacle frame made of a shape memory alloy to which the designs of undercut shapes, fine patterns, design working, etc., in making of the spectacles with the shape memory alloy heretofore considered difficult in plastic working are applied, and the spectacle frame and spectacles obtainable by this method. SOLUTION: This method for manufacturing the spectacle frame made of a shape memory alloy consists of using the shape memory alloy material as a blank and casting the blank by a precision casting method (investment casting method). This method more preferably consists in forming a casting mold by a wax master pattern of the same shape as the shape of the respective spectacle frame and melting down the wax master pattern from the casting mold, then pouring the shape memory alloy material into the casting mold and forming the spectacle frame from the casting formed by the pouring.
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