| 摘要 |
PURPOSE:To avoid stopping the left turn signal caused by the rightwise steering once when the truck turns to the left by providing a means that flows a current to the leftside common bus for a fixed time even though the leftside contact of the turn signal switch is turned off after ''on''. CONSTITUTION:When a large-sized car such as a truck, for example, turns to the left, the turn signal switch 3 is operated to turn the leftside contact 3b on. Next when the steering wheel is turned rightwise once at the corner, the contact 3b becomes ''off'', the contact 5a is closed because no current flows in the relay coil 5b. The first thyristor 6 is turned on by voltage charged in the capacitor C1, the transistor Tr1 is turned on, a current flows in the relay coil 4b. By this, the contact 4a is turned on, a current flows from the flasher unit 1 to the leftside common bus LHL through the contact 4a and the diode D7, and the leftside lamp is flashed. |
