JPH02279435A - Travel alarm lamp-cum-turn signal for fork-lift truck - Google Patents

Abstract

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.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a forklift truck, and more particularly to a direction indicator in which the direction indicator light can also be used as a travel warning light.

[Prior Art] Some conventional forklifts have direction indicator lights attached to the front, rear, left, and right head guard pillars (see Figure 1), and also to notify the surrounding area that the forklift is moving. If necessary, a revolving light is attached to the top of the ceiling of the head guard as a running warning light. Conventionally, the circuit for this turn signal light and the circuit for the running warning light were generally configured separately. , the direction indicator light and the driving warning light flash on and off independently of each other.

[Problems to be Solved by the Invention] As described above, in the conventional technology, the driving warning light is attached to the upper side of the ceiling of the helmet guard. This is the lick that allows the travel warning light to be seen from all around the forklift. However, in this mounting position, there is a risk of damaging the travel warning light if the ceiling of the passageway is low. In order to eliminate this problem, it is possible to install a running warning light under the ceiling of the head guard, but if the running warning light enters the driver's field of vision,
There is a problem that it may interfere with driving, and that the helmet guard pillar is in the way and cannot be seen from the surrounding area. Especially when equipped with a cabin, the blind spot is large.
It will no longer function as a driving warning light.

An object of the present invention is to solve this problem.

[Means for Solving the Problems] The present invention provides that the direction indicator lights are arranged at least in four directions on the front, rear, left and right sides of the aircraft base.
If it is attached to one of the locations, 7
This design was developed with the focus on the fact that the Oaklift can be seen from around the vehicle, and is characterized by the fact that the direction indicator light can also be used as a driving warning light. That is,
The present invention provides turn signal lights attached to at least four locations on the front left side, front right side, rear left side, and rear right side of a forklift, a turn signal circuit associated with the turn signal lights, and a direction signal circuit that controls the running of the forklift. When the detection means for detecting and the direction signal changeover switch of the direction signal circuit are in the neutral position, and the detection means detects the movement of the forklift, current is applied to all of the direction signal lights. The present invention is characterized by a forklift driving warning light and direction indicator, which is equipped with means for:

[Function] In such a configuration, when the direction indicator changeover switch is in the neutral position and the forklift is in a running state, the omnidirectional indicator light is energized and lights up, functioning as a running warning light. Further, when the lever of the direction indicator changeover switch is tilted to the left turn side or right turn side, it functions as a normal direction indicator.

[Embodiments] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

As shown in FIG. 1, a direction indicator light 1 used in the travel warning light/direction indicator according to the present invention is attached to each of the helad guard pillars 2 of a forklift, preferably at the top thereof.

In the following explanation, the direction indicator light attached to the head guard pillar 2 on the left side of the front is given the code IFL, and similarly, the direction indicator lights on the right side of the front, the left side of the rear, and the right side of the rear are each given the code IFL. 1□, I RL.

Please note that IR1 may be added to the explanation.

The direction indicator circuit for operating the direction indicator light 1 with the original function of the direction indicator mainly consists of a battery 3, a direction indicator changeover switch 4, and a flasher relay 5, as shown in FIG. has been done. More specifically, the positive electrode of the battery 3 is connected to the movable contact 4. of the direction indicator changeover switch 4 via the fuse 6. It is connected to the. The left-turn side fixed contact 4L of the direction indicator changeover switch 4 is connected to left-turn direction indicator lights IFL and 111L connected in parallel with each other, and the other side of these direction indicator lights IFL and IRL is connected to a flasher relay. It is connected to the negative electrode of the battery 3 via 5L. Similarly, the right-turn side fixed contact 48 of the direction indicator changeover switch 4 is connected to the battery 3 via the parallel-connected right-turn direction indicator light 11.1■ and the flasher relay 5L.

On the other hand, from the battery 3, a forward and reverse direction switch 919. 0 direction switch 92.9 connected in parallel. The other side leads to the solenoid 118 of the relay 11 via the diode lOF, 10. The contacts of the relay 11 are of a type that closes when the solenoid 111 is energized; one contact 11c is connected to the neutral fixed contact 4° of the direction indicator changeover switch 4, and the other contact 11c2 is connected to the neutral fixed contact 4° through a diode 12L. Turn signal light IFL for folding, 111L
Also, the diode 12. It is connected to the right turn direction indicator lights 1□ and 1° through the .

In this embodiment, a forward chime 13 is connected to the forward direction switch 9F, and a buzzer 14 is connected to the reverse direction switch 9B in order to audibly recognize whether the forklift is moving forward or backward. code 15
indicates a back run.

In such a configuration, the operation of the present invention will be explained.

When the key switch 8 is turned on and the forklift is moving forward or backward, either the forward or reverse direction switches 9F and 98 are turned on, and the relay 1
Current flows through the solenoid IL of No. 1, and the contacts of the relay 11 are closed. At this time, if the direction indicator changeover switch 4 is in the neutral position, the current flows from the battery 3 to the fuse 6.
, changeover switch 4, contact 11 of relay 11. ,．． 11=
, , and diodes 12L, 12, l to all direction indicator lights 1. As a result, the omnidirectional indicator] is Francia Relay 5L.

58, it flashes and works as a driving warning light.

Here, the driver switches the lever of the direction indicator changeover switch 4 to make a left turn, for example, and the movable contact 4. When connected to the left-turn side fixed contact 4L, no current flows to the contact 11c of the relay 11 even if the forklift is moving forward or backward, and the direction indicator circuit returns to its original function as a direction indicator. That is, the diodes 12L, 12. Therefore, no current flows through the right-turn direction indicator lights 1□ and 1RIl, so only the left-turn direction indicator lights IFL and 1RL blink to notify a left turn.

For right turns, right turn direction indicator I FR5I MK
This is substantially the same as the left turn case except that electricity is applied to the left turn, so a description thereof will be omitted.

If you want to turn on the direction indicator light 1 as a driving warning light only when moving forward, use the reverse direction switch 9. or omit the diode 10. All you have to do is disconnect the wires before and after.

Conversely, it is also possible to use similar means to turn on the direction indicator lights only when reversing.

In the above embodiment, the flasher relays 5 L, 5 are provided for each of the direction indicator lights 1 for left turn and right turn, but as shown in FIG. Light I FTl, 1□, I FL, I
It may be shared by RL. In this case, since there is a difference in the voltage applied to the flasher relay 5 when the direction indicator light 1 is used for direction indication and when it is used as a driving warning light, there is an effect that the flashing pattern changes.

[Effects of the Invention] As shown in E, according to the present invention, since the direction indicator light also serves as a driving warning light, the forklift can be seen from all around, and the overall height is equal to the height of the vehicle body. It can be used even in hallways with low ceilings. In addition, the light from the direction indicator light enters the driver's field of vision relatively easily, so it does not interfere with driving.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a forklift to which the present invention is applied, Fig. 2 is a circuit diagram showing the circuit configuration of a driving warning light/direction indicator of the present invention, and Fig. 3 is a diagram showing another embodiment of the present invention. FIG. In the figure,], (1, Il, 1□, 1,
L, I RL>... Turn signal light 4... Turn signal changeover switch 5... Flasher relay 9, . 9. ...Direction switch 11...Relay Fig. 2

Claims (1)

[Claims] Turn signal lights attached to at least four locations on the front left side, front right side, rear left side, and rear right side of the forklift, a turn signal circuit related to the turn signal lights, and a detection means for detecting running of the forklift. and means for supplying current to all of the direction indicator lights when the direction indicator changeover switch of the direction indicator circuit is in a neutral position and the detection means detects running of a forklift. A forklift driving warning light and direction indicator.