PURPOSE: To simplify the structure of connections, by connecting control instructions from a several switches attached to a steering wheel to stationary parts on a vehicle body side through a small number of the above-mentioned connections so that a several number of objects to be controlled on the vehicle side are operated.
CONSTITUTION: A switch section 1 attached to a steering wheel, comprises switches SW1 through SW3 connected in parallel to two terminals 1a, 1b and diodes D2, D3 connected in series to the switches SW2, SW3. The above-mentioned terminals 1a, 1b are connected to connections (a, b) for connecting them to a vehicle body side. Control signals delivered from the outlet ends A, B of a control section 2 arranged on the vehicle body side for selecting the outputs of the switches, are transmitted to objects to be controlled. Further, the control section 2 creates combinations of different levels in accordance with the actuations of the switches, by changing the level of an inlet end 3 of control signal, thereby the objects to be controlled, corresponding to the actuated switches, are controlled. With the use of the combinations.
JIYAN KUROOTO KOSUTO
NAEDE HIDEHIKO
FUNAOKA CHIHIRO
STANLEY ELECTRIC CO LTD