| 摘要 |
<p>PURPOSE:To use respective turn-signal lamps as a traveling alarm lamp by letting a current flow into all the turn-singal lamps set up in all direction of a fork-lift truck at a time when a turn-signal selector switch is in a neutral position and travel of the fork-lift truck is detected. CONSTITUTION:When a key switch 8 is operated and a fork-lift truck is travel ling, direction switches 9F, 9B of either forward or backward are turned on, and a current flows into a solenoid 11s whereby a contact of a relay 11 is closed. At this time, if a turn-signal selector switch 4 is in a neutral position, the current flows into all turn-signal lamps 1 by way of a fuse 6, the selector switch 4, contacts 11c1, 11c2 of the relay 11 and diodes 12L, 12R from a battery 3. In consequence, all the turn-signal lamps 1 are flashed by flasher relays 5L, 5R, functioning as traveling alarm lamps. On the other hand, if a moving contact 4s is connected to a left-turn side fixed contact 4L, by way of example, action inherent in the turn-signal takes place.</p> |
