| 摘要 |
PURPOSE:To enhance safety by providing a control circuit whereby, even when a function selection switch relating to heating operation is operated by error during the use of the device as a mat drier, it is ensured that the function is not actuated. CONSTITUTION:During the use of the device as a mat drier, with a mat drying duct 12 inserted into a connection port 11, an open-close cover 19 opens as against a spring or the like, a control switch 30 is turned on through a lever 28, and a shuttter vane 24 at the outlet of a humidifier 10 is closed by the lever 28 through an open- close lever 27. Then, with a power switch 8 turned on, a relay coil Rc has its contact Ra turned on and its contact Rb turned off, a fan 18 is operated by a fan motor 31, a heater 9 is supplied with current, and hot air is fed to the mat to be dried. In this case, since an ultrasonic vibrator 17 of the humidifier 10 is also turned off due to the turning-off of the contact Rb, any operation of function selection switches 5-7 relating to heating operation is nullified. |
