| 摘要 |
PURPOSE:To enable the setting of bath for a long and a short time by the use of a single timer, by a method wherein a device for setting a heating time is constituted such that a short and a long time setting can be made possible, and when set to a long time mode, a power source of a timer motor for the heating time setter is disconnected. CONSTITUTION:A long time mode can be set in a way that, by means of a cooking timer 14 which can be set to both short time seale 16 and long time seale 17 by a single control knob 15, in the case of a high output setting, a power source of a timer motor 18 is continuously energized, and in the case of a low output setting, the power source of the timer motor 18 is made and broken through a primary make and break switch 20 for making and breaking a high frequency output at the primary side of a high pressure transformer 19. Through the selection of the intermittent make and break cycle of the switch 20, the time limit of the timer 14 is arbitrary selected. This permits the reduction of a manufacturing cost, the improvement of a quality, and the saving of a space. |
