| 摘要 |
PURPOSE: An electronic gas timer device with a spring is provided to extend the life of a battery and to reduce the malfunction of a timer device by reducing the overload of an electric motor. CONSTITUTION: An electronic gas timer device with a spring comprise a main spindle gear(4), an intermediate gear part(5), and a geared motor(6). The main spindle gear is connected to one shaft of a gas timer handle(1). The main spindle gear is wound by a spring. The intermediate gear part is composed of an eccentric rotary pinion and an eccentric rotary gear. The eccentric rotary pinion and the eccentric rotary gear are arranged in the side of the main spindle shaft at a constant gear ratio and compensate a deceleration ratio of a geared motor. The eccentric rotary pinion and the centric rotary gear restrict and release the restoring force of the spring wound on the main spindle shaft. The geared motor is engaged with the eccentric rotary gear and has the deceleration ratio as much as the geared motor is not rotated by the restoring force of the spring. |
