JP2562616Y2 - Cluster gauge - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a monitor class luggage provided mainly in a cab of a construction machine such as a hydraulic excavator or a working vehicle.

[0002]

2. Description of the Related Art FIG. 6 is a perspective view showing a main part of a cluster gauge 1. As shown in FIG. In the figure, reference numeral 2 denotes a panel unit of the cluster gauge 1, reference numeral 3 denotes a liquid crystal display, reference numeral 4 denotes a controller, and reference numeral 5 denotes a harness for communicating various sensors arranged on the construction machine with the controller 4. FIG. 7 is a block diagram illustrating the configuration and functions of the cluster gauge 1 according to the related art. In the figure, 6, 7,..., N are sensors for detecting a hydraulic oil level, a fuel level, a preheating state of a spark plug, an oil pressure, a radiator water temperature, a radiator water level, and clogging states of various filters, respectively, and 8 is a monitor. R in which maintenance information (for example, filter replacement time intervals) programmed in advance for the monitoring items of
Reference numerals OM and 9 denote a RAM for temporarily storing the operation results of the controller 4 and the like, and 10 denotes a drive circuit with an English character message.

Next, a cluster gauge 1 of the prior art is shown in FIG.
FIG. 7 will be described. Various sensors arranged on the construction machine detect the state of the monitored item. The detection signals from the various sensors 6, 7,.
Then, the liquid crystal driving command signal is output to the driving circuit 10 with the English character message. Therefore, the liquid crystal display 3
Can display an image with an English character message.

[0004]

In a cluster gage for a monitor mounted on a hydraulic excavator, there are about 20 types of image patterns for displaying the state of various monitoring items on a liquid crystal display. At first glance, the symbol images of these images are often similar. In the cluster gauge of the prior art, an English character message is displayed on the liquid crystal display together with the symbol image as described above. The driver may not be able to read the English text message and may make a mistake in the judgment. Therefore, it cannot be said that the driver is thorough in terms of maintenance and safety. An object of the present invention is to provide a cluster gauge that can solve the above problems.

[0005]

In the cluster gauge of the present invention, a driving circuit with an English character message and a driving circuit with a Japanese character message are provided independently as a driving circuit of a liquid crystal display for displaying an image with a message. Also, a changeover switch is provided between the controller and both drive circuits, and when the changeover switch is operated as required, the liquid crystal drive command signal from the controller is transmitted to the drive circuit with the English character message or the drive circuit with the Japanese character message. , And selectively communicated.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A practical example of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a block diagram showing the configuration and functions of the cluster gauge 11 of the present invention. In the figure, the same reference numerals are given to components using the same components as the conventional technology. 3 'is a liquid crystal display of the panel unit 12, 10' is a driving circuit with an English character message, 13 is a driving circuit with a Japanese character message, 14 is a changeover switch, and 4 'is a controller.

Next, the configuration of the cluster gauge 11 of the present invention will be described with reference to FIG. In the cluster gauge 11 of the present invention, a drive circuit 10 'with an English character message and a drive circuit 13 with a Japanese character message are independently provided as a drive circuit of the liquid crystal display 3', and the controller 4 '
A switch 14 is provided between the drive circuit 10 'and the drive circuit 10' and the liquid crystal drive command signal from the controller 4 'is transmitted when the switch 14 is operated as required. The drive circuit 13 with a message is selectively communicated. In this embodiment, the English character message and the Japanese character message are used. However, according to the overseas region or the foreign driver who operates the hydraulic excavator, the foreign character message other than the English character and the Japanese character is used. Is also good.

Next, the operation of the cluster gauge 11 of the present invention will be described. When the changeover switch 14 is operated to the contact A (shown in FIG. 1), the liquid crystal drive command signal from the controller 4 'is output to the drive circuit 10' with an English character message. Then, the image with the English character message is displayed on the liquid crystal display 3 'by the driving output from the driving circuit 10' with the English character message.
The fact that the changeover switch 14 is set to the contact A is the same as in the prior art. Next, as desired by the driver, the changeover switch 14 is switched to the position B as shown in FIG. The liquid crystal drive command signal from the controller 4 'is output to the drive circuit 13 with Japanese character message. Therefore, the image with the Japanese character message can be displayed on the liquid crystal display 3 'by the driving output from the driving circuit 13 with the Japanese character message.

FIGS. 2 to 5 are representative examples showing a state in which an image with an English character message (shown on the left side) is switched to an image with a Japanese character message (shown on the right side) by operating the changeover switch 14. FIG. 2 is an image with a message indicating a preheating state of the ignition plug when a starter switch (not shown) is turned on before the engine is started.
FIG. 3 is an image with a message indicating that the preheating in FIG. 2 has been completed. FIG. 4 is an image with a message that warns of a decrease in the lubricating oil pressure of the engine.
FIG. 5 is an image with a message that warns of an abnormal rise in the temperature of the engine cooling radiator water. Figure 2 above
In the display of the image with the message in FIG. 5, by switching the English character message to the Japanese character message, the display contents can be easily and instantly confirmed.

[0010]

According to the prior art cluster gauge for a monitor mounted on a hydraulic excavator, there are about 20 types of images with English character messages indicating the status of various monitoring items. The driver may not be able to read the English text message and may make a mistake in the judgment. Therefore, it cannot be said that the driver is thorough in terms of maintenance and safety. However, in the cluster gauge of the present invention, a drive circuit with an English character message and a drive circuit with a Japanese character message are provided independently as a drive circuit of the liquid crystal display, and switching between the controller and the above both drive circuits is performed. A switch is provided to selectively pass a liquid crystal drive command signal from the controller to a drive circuit with an English character message or a drive circuit with a Japanese character message when the changeover switch is operated as required. By switching the changeover switch to the drive circuit with Japanese character message as desired by the driver, an image with Japanese character message can be displayed on the liquid crystal display. By switching the English character message to the Japanese character message, the display contents can be confirmed easily and instantly. Therefore, in the hydraulic excavator equipped with the cluster gauge of the present invention, the visibility and safety of the display contents of the liquid crystal display can be improved.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration and a function of a cluster gauge of the present invention.

FIG. 2 is an example showing an image with a message of the present invention.

FIG. 3 is an example showing an image with a message of the present invention.

FIG. 4 is an example showing an image with a message of the present invention.

FIG. 5 is an example showing an image with a message of the present invention.

FIG. 6 is a perspective view of a main part showing a cluster gauge.

FIG. 7 is a block diagram showing a configuration and a function of a cluster gauge according to the related art.

[Explanation of symbols]

 Reference Signs List 1,11 Cluster gauge 2,12 Panel 3,3 'Liquid crystal display 4,4' Controller 6,7,, n sensor 10,10 'Driving circuit with English character message 13 Driving circuit with Japanese character message 14 Changeover switch

Claims (1)

(57) [Scope of request for utility model registration] 1. Various sensors are arranged on a construction machine, each of them detects a normal or abnormal state of various monitoring items for monitoring on an operation target, and maintenance information programmed in advance for the monitoring items is provided. A cluster gauge that has a stored ROM and displays an image with a message indicating the abnormality repeatedly or alternately via a controller when an abnormality occurs in a single item or a plurality of items regarding the operation and state of the construction machine. As a driving circuit of a liquid crystal display for displaying an image with a message, a driving circuit with an English character message and a driving circuit with a Japanese character message are independently provided, and a changeover switch is provided between the controller and the driving circuits. When the changeover switch is operated as required, the controller A cluster gauge characterized in that the liquid crystal drive command signal is selectively transmitted to a drive circuit with an English character message or a drive circuit with a Japanese character message.