| 摘要 |
PURPOSE:To remove the occurrence of a wiper blade stop in the course of wiping operating by constituting the wiper device wherein a wiper motor can be energized until the wiper blade returns to a predetermined stop position even if an ignition key switch has been turned OFF with a wiper operation switch ON. CONSTITUTION:A power source +B operable regardless of any ignition key position is used for feeding power to the wiper motor 1 of an automobile. And the power +B is supplied to the wiper motor 1 via a switch 4 and kept ON until the return of a wiepr blade to a predetermined position, even if the ignition key has been turned OFF. In this case, the switch 4 makes ON-OFF control with the logic circuit 5 thereof. And the logic circuit 5 is inputted with a signal SW showing that an operation switch 2 is at the OFF position, a signal AS showing that the wiper blade is at the stop position and a signal IG showing that the ignition key switch is at the ON position, respectively.
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