JPH11192884A - Illuminating lamp for mounting on working vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store an illuminating lamp mounted on a working vehicle and used as illumination in night operation in an existing space where a sufficient illuminance can be obtained and small and light weight power supply device is provided. SOLUTION: An inverter device 10 is connected to an illuminating lamp 1 with high illuminance illuminated at a commercial voltage and a battery 13 for working vehicle, and a battery voltage is built up to the commercial voltage so as to supply power to the illuminating lamp 1. Also, a working machine interlocked switch 18 detects the non-driving condition of a working machine loaded on the working vehicle so as to stop the operation of the inverter device 10, or opens a circuit for connecting the inverter device 10 to the illuminating lamp 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an illumination light mounted on a working vehicle.

[0002]

2. Description of the Related Art A working vehicle equipped with a working machine such as a vehicle-mounted crane or a high-altitude working machine is equipped with an illuminating lamp for use in nighttime work. 2. Description of the Related Art Conventionally, an illumination lamp mounted on a work vehicle of this type has a battery voltage drive (for example, DC24V) which is directly lit by electric power from a battery mounted on the work vehicle.
Driven) lighting was used. However, as the battery voltage driven lighting lamp, only a lighting lamp of about DC24V60W is available on the market at best, and a sufficient illuminance as a lighting light at night work was not obtained.

[0003]

On the other hand, an illuminating lamp driven by a commercial voltage (for example, driven by 100 V AC) has an AC 10 V.
Illumination lamps of about 0V 300W are commercially available, and in addition to providing sufficient illuminance as illumination lamps during nighttime work, the driving current is small compared to illumination lamps driven by battery voltage, and the amount of heat generated by the power transmission code can be suppressed. However, it is necessary to mount a large and heavy power supply device such as an engine generator on the work vehicle, and there is a problem that the installation space is secured and the vehicle weight is increased.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and provides a sufficient illuminance as an illumination lamp for nighttime work. Further, the power supply device is small and lightweight and can be stored in an existing empty space. It is an object of the present invention to provide an illumination light mounted on a work vehicle.

[0005]

The present invention has the following means for solving the above-mentioned problems. That is, the work vehicle-mounted illumination light according to the present invention is a lighting device mounted on the work vehicle and having a high illuminance of a commercial voltage, and connected to the battery of the work vehicle to increase the battery voltage to the commercial voltage, Inverter device that supplies power to the lighting device, and a working device that detects the non-driving state of the working device mounted on the work vehicle and stops the operation of the inverter device, or opens an electric circuit connecting the inverter device and the lighting device It consists of an interlock switch.

As described above, in the configuration of the work vehicle-mounted illuminator of the present invention, the illuminator is turned on at the commercial voltage obtained by the inverter connected to the battery of the work vehicle and boosting the battery voltage to the commercial voltage. Therefore, a lighting voltage of a high illuminance of commercial voltage (for example, one or two lighting lamps of about AC100V300W) is used.
Lamp) can be turned on. As a result, it is possible to obtain sufficient illuminance as an illumination lamp for night work.

Further, as a power supply device for supplying power to the illumination lamp,
Uses a smaller and lighter inverter device than engine generators, etc., so it can be stored in the existing empty space of the work vehicle, increasing the degree of freedom in layout design and suppressing the increase in vehicle weight. You can.

Further, according to the configuration of the present invention, the non-driving state of the work machine mounted on the work vehicle is detected to stop the operation of the inverter device, or to open the electric circuit connecting the inverter device and the illumination lamp. Since an interlock switch is provided,
When the working machine is in the driving state, the power from the inverter is supplied to the lighting and is turned on. When the working vehicle is in the traveling state, that is, when the working is in the non-driving state, the power from the inverter is supplied to the lighting. Instead, they can be turned off. As a result, when the work vehicle is brought into a traveling state, the illumination light is automatically turned off, and lighting of a lamp confusing as a road traveling vehicle can be prevented.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 2, for example, a work vehicle-mounted illuminator 1 according to the present embodiment includes a base 5 mounted on a frame 4 behind a driver's cab 3 of a vehicle 2 and a turnable base on the base 5. The above-mentioned on-board crane 9 comprising a mounted turning post 6 and a crane boom 8 which is supported by the turning post 6 so as to be able to move up and down freely and which carries a load by hanging a load with a hook 7 hung from the tip. The crane boom 8 is attached to the distal end of the base end boom 8a.
The illuminating lamp 1 uses two AC100V 300W lamps, and each illuminating lamp 1 is configured to be able to change the irradiation angle in an arbitrary direction with respect to the boom axis.

The illuminating lamp 1 is selected to have a voltage specification corresponding to the output voltage of the inverter device 10 described later. For example, if the inverter device 10 has an AC 200 V specification, the illuminating lamp 1 also has an AC 200 V specification. The thing of the specification is selected. By selecting the lighting lamp 1 having a high voltage specification in this manner, the amount of current flowing through the power transmission cord 11 can be reduced even with the same brightness of the lighting lamp, and the heat generation of the power transmission cord 11 can be suppressed. It is. This is particularly advantageous when a rotary joint 12 and a code reel (not shown) are provided in the middle of the power transmission cord 11.

The number of illuminating lamps 1 is not limited to two, but may be one or three or more. Further, the capacity is not limited to that of AC100V300W, and any capacity can be selected within a range not exceeding the allowable output of the inverter device 10.

Also, the mounting position of the illumination lamp 1 may be the base end boom.
It may be attached not only to the tip of the tip 8a but also to the tip of the tip boom 8b. In this case, it is sufficient to use a cord reel or the like (not shown) so that power can be supplied to the illuminating lamp 1 irrespective of the expansion and contraction of the crane boom 8. With this configuration, since the crane boom 8 can be extended to illuminate from a high position, there is an effect of reducing glare during work. In a work vehicle not equipped with a crane boom, the illuminating light 1 can be mounted at an arbitrary position such as a torii gate on a cargo bed.

FIG. 1 shows an electric circuit of an illuminating lamp.
This is a C-AC inverter device. The inverter device 10
Is the battery voltage (DC24) connected to the input terminal 10a.
V) and boosts it from the output terminal 10b, for example, AC100V8
It is configured to output a commercial voltage of about 00W. Since a large drive current flows through the input terminal 10a, the inverter device 10 connects the input terminal 10a to the battery of the work vehicle.
It is designed to be directly connected to 13. In addition, since the inverter device 10 is used directly connected to the battery 13, the main switch 16 (key switch) of the work vehicle is turned on and detected by the voltage of the terminal 10c to be in an operation standby state. When the load is connected to the output terminal 10b, the operation state is detected. When the load is released from the output terminal 10b, the operation is stopped after a predetermined time. Reference numeral 17 denotes an outlet attached to the inverter device 10, which can be driven by connecting a power tool driven by a commercial voltage or the like. The battery
13 is charged by a generator 15 driven by a vehicle engine 14.

Reference numeral 18 denotes a PTO device (power take-off device) which is interposed between the output of the vehicle engine 14 and the hydraulic pump 19 of the on-vehicle crane 9 for transmitting / cutting power transmission between the two. This is a PTO interlocking switch that is turned on when the PTO device 20 is operated to the transmission position (drive position) and turned off when the PTO device 20 is operated to the cutoff position (non-drive position). The PTO interlock switch 18 is a PTO
It is configured to be turned on when the device 20 is operated to the driving position and the vehicle-mounted crane 9 is in the driving standby state, and is turned off when the device 20 is operated to the non-driving position and the vehicle-mounted crane 9 is in the non-driving state. , Corresponds to the work equipment interlocking switch in claim 1. The PTO interlock switch
18 is linked to the operation of the parking brake of the work vehicle,
A parking interlock switch that is turned on when the parking brake is operated may be used. Further, a switch that is directly turned on after detecting the driving state of the on-vehicle crane 9 may be used. Reference numeral 21 denotes a work light switch that is manually operated when the work light 1 is turned on.

The switches 18 and 21 are connected in series to the relay 22 together with the main switch 16. When the main switch 16, the PTO interlock switch 18 and the work light switch 21 are all turned on, the relay 22 is turned on. When the relay switch 22a is turned on, the inverter device 10 is turned on.
Is connected so as to be supplied with power from the illumination lamp 1 and to be turned on.

When the work vehicle is traveled after the work is completed, the PTO device 20 is operated to the cut-off position (non-drive position) and the PTO interlocking switch 18 is turned off, so that the relay 22 is de-energized, The relay switch 22a turns off. For this reason, the power from the inverter device 10 is not supplied to the illuminating lamp 1 and is automatically turned off.

In the electric circuit of the above embodiment, a relay switch 22a is interposed in the electric circuit 11 connecting the output terminal 10b of the inverter device 10 and the illuminating lamp 1, and the relay switch 22a illuminates the light from the inverter device 10. Although the circuit configured to control the power supply state to the lamp 1 has been described, in the case where the inverter device 10 is configured to be able to control the operation state by an external signal, the main switch 16 as shown in FIG. The inverter device 10 may be activated when both the PTO interlock switch 18 and the work light switch 21 are turned on, and the inverter device 10 may be deactivated at other times.

[0018]

As described above, in the working vehicle-mounted lighting device of the present invention, the lighting device is turned on at the commercial voltage obtained by the inverter connected to the battery of the working vehicle and boosting the battery voltage to the commercial voltage. With such a configuration, it is possible to light a high-intensity illuminating lamp whose commercial voltage is the lighting voltage. As a result, it is possible to obtain sufficient illuminance as an illumination lamp for night work, and to suppress the amount of heat generated by a power transmission cord for transmitting power to the illumination lamp.

Further, as a power supply device for supplying power to the illumination lamp,
The use of a small and lightweight inverter device allows the work vehicle to be stored in an existing empty space, thereby increasing the degree of freedom in layout design and suppressing the increase in vehicle weight.

Further, a work machine interlocking switch for detecting the non-drive state of the work machine mounted on the work vehicle and stopping the operation of the inverter device or opening the electric circuit connecting the inverter device and the illumination lamp is provided. When the working machine is in the driving state, the power from the inverter is supplied to the lighting and is turned on, and when the working vehicle is in the traveling state, that is, when the working is in the non-driving state, the power from the inverter is supplied to the lighting. It can be turned off without power supply. As a result, when the work vehicle is in the traveling state, the illuminating lamp can be automatically turned off, and the lighting of a confusing lamp as a road traveling vehicle can be prevented.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an electric circuit of an illumination light mounted on a work vehicle according to the present invention.

FIG. 2 is an explanatory view of an illumination light mounted on a work vehicle according to the present invention.

FIG. 3 is an explanatory diagram of an electric circuit of another embodiment of a work vehicle-mounted illuminator of the present invention.

[Explanation of Signs] 1; lighting lamp, 2; vehicle, 3; driver's cab, 4; frame,
5; Base, 6; Swivel post, 7; Hook, 8; Crane boom, 9; On-board crane, 10; Inverter device, 1
1: electric code, 13: battery, 14: vehicle engine, 1
5; generator, 16; main switch, 18; PTO interlock switch (work equipment interlock switch), 19; hydraulic pump, 20; P
TO device, 21; work light switch, 22; relay,

Claims (1)

[Claims] An illumination device mounted on a work vehicle and having a high illuminance with a lighting voltage of a commercial voltage; an inverter device connected to a battery of the work vehicle and boosting the battery voltage to the commercial voltage to supply power to the illumination lamp; Stop the operation of the inverter device by detecting the non-driving state of the work machine mounted on the work vehicle,
Alternatively, a work vehicle-mounted lighting device comprising: a work implement interlocking switch for opening an electric circuit connecting the inverter device and the lighting device.