METHOD FOR MANUFACTURING CLOCK SPRING, DEVICE FOR MANUFACTURING CLOCK SPRING, CLOCK SPRING, AND CLOCK

摘要

PROBLEM TO BE SOLVED: To provide a method for manufacturing a clock spring, a device for manufacturing the clock spring, the clock spring, and a clock capable of simply manufacturing a plate material having a desired width with high precision.SOLUTION: A method for manufacturing a clock spring is configured to form a plate material of a metallic glass by ejecting a molten metallic glass material toward the outer peripheral face of a rotating cooling roll 114A and rapidly solidifying the ejected molten metallic glass material on the outer peripheral face of the cooling roll 114A. The cooling roll 114A has a cooling part 115 for rapidly solidifying the molten metallic glass material. The width dimension W of the cooling part 115 in the direction along the rotation axis of the cooling roll 114A is set to the width dimension of the plate material.