Matsushita Electric Industrial Co., Ltd.

Hirofumi Aoyagi

Kazutoshi Nagai

Hiroshi Horii

Kunio Kimata

Shinichi Watanabe

Hidenobu Hasegawa

Shunichiro Mori

Ichiro Nasu

A sanitary cleaning apparatus is disclosed, which comprises a cleaning water discharge device, a functional device including another cleaning water discharge device or a private parts dryer, a member for turning on and off the cleaning water discharge device, and a human body (presence or absence) detector. Only while the human body detector produces a human body detection signal, the on-off member for the cleaning water discharge device or the functional device is turned on, thereby selectively actuating a corresponding device. One of the devices thus turned on as selected above is de-energized by (a) the turning off of the on-off member of the selected device, (b) the turning on of the on-off member of the other device not selected, or (c) extinction of the human body detection signal of the human body detector.

Sanitary cleaning apparatus

A sanitary cleaning apparatus includes a cleaning water discharger and an additional apparatus (such as a drier) having a sanitary function, and a set of switches operatively connected to the cleaning water discharger and the additional apparatus, respectively. When a switch is manually operated, a first setting control sets the energization amount of the cleaning water discharger and/or the additional apparatus to a first set value. When a second setting control is manually operated, the energization amount is changed to a second set value set by the second setting control. When a human body detector is turned off, the energization amount is returned from the second value to the first value.

A system comprising a heat generating load such as a heater, a power control element for directly or indirectly supplying current to the heat generating load, a temperature detecting circuit for producing an ON signal when the temperature of the heat generating load is lower than a set temperature and an OFF signal when the temperature is higher than the setting, and a control circuit for feeding an ON or OFF signal to the power control element in response to the ON or OFF signal from the temperature detecting circuit. The control circuit includes a failure detecting circuit for logically comparing the signal from the temperature detecting circuit with the terminal voltage across the power control element to produce output when the power control element is in conduction although the signal from the temperature detecting circuit is an OFF signal. Upon the failure of the power control element, for example, due to self-triggering, the failure is detected directly by the failure detecting circuit and, in response to the resulting output therefrom, the power supply to the heat generating load is stopped to assure safety.

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Habikino, Japan

Hirofumi Aoyagi