PURPOSE: To operate in an interlocking manner a controller in the upper part of a washing machine and a driving unit, such as a motor, in the lower part of the washing machine substantially without electric connections.
CONSTITUTION: A washing machine comprises an upper circuit positioned in the upper part thereof and a lower circuit positioned in the lower part thereof. The upper circuit is comprised of a key providing means 2, a display means 3, a controlling means 4 for controlling a driving unit, such as a motor, a serial signal converting means 5 for converting a controlling signal to a serial signal, and a light transmitting and receiving means 6 for transmitting and receiving a serial signal by means of light. The lower circuit is comprised of a driving means 10 for driving a driving unit, such as a motor, a light transmitting and receiving means 8 for transmitting and receiving light and a serial signal converting means 9. An electric power is supplied from an electric power means in the lower part of the washing machine to the upper circuit and lower circuit.
OHASHI MASAHARU
HATA KEIKO
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