ELECTRONIC CONTROL TYPE MECHANICAL CLOCK AND ITS CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide an electronic control type mechanical clock capable of reporting a user on a time delay and preventing the user from using a clock while time is being delayed. SOLUTION: The electronic control type mechanical clock is provided with a rotary control device 50 for controlling the rotary period of a generator 2 for transducing a mechanical energy from a spring 1 to an electrical energy. The device 50 is provided with an up/down counter 60 for comparing the rotary period of the generator 2 with a reference period, a brake signal generation means 90 for regulating speed that outputs an H-level brake signal LBS1 (brake signal for regulating speed) when the value of the up/down counter 60 is equal to or more than 12 (when the rotary period becomes faster than the reference period), and a brake signal generation means 100 for stopping the movement of clock hands that outputs an H-level brake signal LBS2 (brake signal for stopping the movement of clock hands) when a state where no brake signals for regulating speed are outputted at least four seconds.