JP2001226100A - Display device of forklift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enlighten safety work every day by displaying symbol marks indicating 'read the instruction manual' and 'fasten the seat belt' on a screen every key operation for start of operation. SOLUTION: Figure 2 (b) shows a key ON state at start of operation such as the commencement of work, or immediately after a power source is closed, and symbol marks of a function set in a forklift and letters of 'monitoring' are displayed. After 0.5-1 second, the display is changed to figure 2 (c), a symbol mark 37 indicating 'read the instruction manual' and a symbol mark 38 indicating 'fasten the seat belt' are displayed. The symbol marks 37, 38 go on and off at least once, and the display is changed to a basic screen showing in figure 2 (d).

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device for a forklift.

[0002]

2. Description of the Related Art Forklifts are different from ordinary passenger cars in terms of their functions, and carry out loading and unloading operations in factories and buildings and transport operations to other places. Therefore, in order to maintain the safety of operations such as operation of a forklift and operation of a cargo handling device, it is necessary to observe operation procedures based on an instruction manual and the like, and to appropriately use a safety device. In addition, the instruction manual of the forklift is generally arranged near the driver's seat.

[0003]

However, due to the familiarity of the operation and the busyness of the work, it is easy to forget to use the safety device properly and to have an instruction manual.

The present invention has been made in view of the above points, and shows "reading an instruction manual" and "wearing a seat belt" on a display screen every time a key operation for starting operation is performed. An object of the present invention is to provide a display device of a forklift for displaying a symbol mark for daily enlightenment of safe work.

[0005]

Therefore, a display device of a forklift according to the present invention is a display device provided in a driver's seat of a forklift, and notifies an operator of a vehicle body condition such as an operation state and a charge state of the forklift. And an initial display screen for notifying an operator of preparations for starting operation of the forklift, displaying the initial display screen simultaneously with driving of the forklift, and thereafter displaying the initial display screen. It is characterized in that a body status display screen is displayed.

[0006] With this configuration, it is possible to recognize the preparations and cautions when starting the operation on the initial display screen, and it is possible to enlighten safely work on a daily basis.

According to a second aspect of the present invention, in the display device for a forklift, the initial display screen includes a symbol mark for urging an operator to read an instruction manual.

[0008] Thus, at the start of operation, the operator is prompted to read the instruction manual on the initial display screen, so that the safety work can be enlightened on a daily basis.

According to a third aspect of the present invention, in the display device for a forklift, the initial display screen includes a symbol mark for urging the operator to wear a seat belt.

[0010] Thus, at the start of the operation, the operator is prompted by the initial display screen to fasten the seat belt, so that the safety work can be enlightened on a daily basis.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 14 is a side view of a rechargeable battery type forklift to which the present invention is applied. First, the overall configuration of the forklift 1 will be described with reference to FIG. The forklift 1 includes a vehicle body 2 and a cargo handling device 3
The head guard 7 is provided on the upper part of the vehicle body 2. In addition, a steering wheel 10 is provided at a front portion of the vehicle body 2,
An operation lever 11 is provided, and an accelerator pedal 12 for accelerating is provided on the floor. A brake pedal 9 is provided beside the accelerator pedal 12.

Further, a rechargeable battery 5 is provided below the seat 4 at the rear of the vehicle body 2, and the battery 5 is used to drive a traveling motor 8 of the vehicle body 2 and a cargo handling device 3 for driving the cargo handling device 3. It is used as a power source for the motor 6. The motors 6 and 8 use induction motors in the present embodiment.

A pair of left and right masts 13 of the cargo handling device 3 are provided.
A lift bracket 15 which is moved up and down by a lift cylinder 14 is provided on a front surface of the fork 16. A fork 16 is fixed to the lift bracket 15. The mast 13 is tilted rearward by a tilt cylinder 17.

At the front of the driver's seat of the forklift 1, there is provided a display for displaying the running speed, the remaining charge of the battery 5, the current date and time, the reserved state of the charge of the battery 5, and the like. FIG. 1A shows a display screen 22 of the display unit. In addition, four push buttons are provided below the display screen 22, and a charge reservation button 23 for making a reservation for charging the battery 5 from the left, a mode switching button 24 for switching various modes, a numerical value and the like. A down button 25 for correcting downward movement and an up button 26 for performing upward correction of numerical values and the like are arranged at predetermined intervals.

FIG. 13 is a block diagram according to the present invention. Signals from the operation buttons 23 to 26 are input to an input / output interface 31 of a control device 30 composed of a microcomputer or the like. These signals are input to a control unit 32 called a CPU, an MPU, or the like. The storage unit 33 including a ROM, a RAM, and the like stores programs and data for controlling the entire system. In response to the signals from the buttons 23 to 26, the controlled display signals are output to the display unit 21 via the input / output interface 34, and the display screen 22 of the display unit 21 is shown in FIG. 1 (a)
It is a screen shown in FIG. The display unit 21 is, for example, an LCD.
It is composed of

FIG. 2A shows the display screen 22 when the key is OFF, that is, when the power is turned off, and is in a blank state. FIG. 2B shows a key ON at the start of work such as at the start of work.
This indicates the time, that is, immediately after the power is turned on, and the symbol mark of the function set in the forklift 1 and the word “monitoring” are displayed. Then, after 0.5 to 1 second, the display changes to a display as shown in FIG. here,
The character "OK!" Is displayed to the right of the character "Monitoring", and two symbol marks 37 and 38, which are larger than the other symbol marks, blink on the right side of the display screen 22. I have.

That is, the symbol mark 37 on the left side is a symbol mark that means that an operation manual (not shown) which describes the operation of the forklift 1 and various items is read before the operation. This instruction manual is stored in a pocket provided on the back of the seat 4, for example. Further, the symbol mark 38 on the right side is a symbol mark indicating that the user should fasten the seat belt. in this way,
Each time the key is turned on while sitting on the seat 4, the two symbol marks 37 and 38 of "reading the instruction manual" and "wearing the seat belt" are blinking and displayed at the same time. From the blinking display of these symbol marks 37 and 38,
The operator is always informed before the operation, so that the operator can be routinely enlightened about safe operation. Note that the number of times of flashing of the symbol marks 37 and 38 may be one or more, and it is not necessary to flash.

The screen is switched to a screen as shown in FIG. 2D two to three seconds after the display of the display screen 22 in FIG. 2C. The state of the display screen 22 in FIG. 2D is a basic screen, and this screen is displayed in a normal operation state.

As shown in FIGS. 2B and 2C,
Five kinds of abnormality detection / notification functions are set, the symbol mark 40 is a symbol mark for notifying an abnormality of the running relation, the symbol mark 41 is an abnormality of the hydraulic pressure relation, and the symbol mark 42 is a symbol mark of the steering relation. Abnormalities,
The symbol mark 43 indicates that the battery fluid level is abnormal (insufficient fluid)
When the brake oil is insufficient, the symbol mark 44 blinks to notify the operator of the abnormality. Also, when notifying the above-mentioned abnormality in the operating state, only the symbol mark corresponding to the abnormality blinks or lights up to notify the operator. Corresponding symbol marks 40 to 44 are displayed. After that, they are not displayed and the basic screen shown in FIG. 2D is displayed.

FIG. 1A is the same screen as FIG. 2D, and is a basic screen in a normal operation state. Next, the configuration of the basic screen will be described. The display screen 22 is displayed in color, and a speed display section 46 for displaying a running speed is arranged in a bar graph shape. On the left side of the speed display section 46, a battery remaining amount display section 47 for displaying the remaining amount of the battery 5 is provided in a bar graph shape. When the battery 5 is fully charged, the light is lit up to the upper part of the battery remaining amount display section 47, but the light is turned off from the top according to the remaining capacity as shown in FIG. Is reduced and the “2” portion of the battery remaining amount display section 47 disappears, and at the same time, as shown in FIG. Blinks, and the power supply from the battery 5 is stopped to prevent the battery 5 from being over-discharged.

A total display section 48 is provided below the speed display section 46. The total display section 48 is switched between an hour meter for displaying the total operating time and a distance meter for displaying the mileage. Is available. In FIG. 1A, the total display unit 48 displays the total operation time in units of HR. Further, by switching the display of the total display unit 48, as shown in FIG. 1B, it is possible to display the traveling distance in km. Further, the parking brake display unit 49
When the parking brake is applied (the sensor is on), the light is turned on as shown in FIG. 1 (a), and when the parking brake is released (the sensor is off), the light is turned off as shown in FIG. 1 (b). It is supposed to.

At the lower part of the display screen 22, a charge reservation state display section 50 for displaying when to start charging the battery 5 is displayed.
And a current month / day / date display section 51 for displaying the current month, day, day of the week, time, and the like. In the example of FIG. 1, in the charging reservation state display unit 50, the date and time when the charging of the battery 5 is started are set at 10:00 pm on May 15 (C
HG 5/15 PM 10:00).
The current month, day, date, and time are displayed on the current month, day, and time display unit 51 as 10:30 AM on Saturday, May 15 (Sat).

As shown in FIGS. 1 (b) to 1 (d), a traveling mode display section 52 is provided below the speed display section 46, and when a turtle mark operation button (not shown) is pressed, As shown in FIG. 1B, a turtle mark indicating that the vehicle is traveling at a low speed and the set speed are displayed on the traveling mode display section 52. When the operation button for the rabbit mark (not shown) is pressed, a rabbit mark indicating high-speed running is displayed on the running mode display section 52 as shown in FIG. 1C. When the operation button for the turtle mark is pressed in this state, the display switches to the turtle mark and the set speed (see FIG. 1B). FIG. 1D shows a case where the high acceleration setting (AC mode) is displayed on the driving mode display section 52. In this case, when the operation button of the turtle mark is pressed, the display is switched to the turtle mark and the set speed. (See FIG. 1B).

Here, as shown in FIG. 1A, on the left side of the display screen 22, a battery remaining amount display section 47 and a charge reservation state display section 50 as functions related to the charging of the battery 5 are vertically arranged. The charge reservation button 23 is arranged below the charge reservation state display section 50 below the charge reservation state display section 50.
That is, the battery remaining amount display unit 47, the charge reservation state display unit 50, and the charge reservation button 23 are arranged in a straight line in the same row, and the charge reservation button 23 is physically close to the charge reservation state display unit 50. With such arrangement, the position of the charging reservation button 23 operated by the operator can be easily recognized. This eliminates the need to bother to issue an instruction manual when making a charging reservation and to search for the position of the charging reservation button 23 for charging reservation. In particular, the charging can be performed without completely understanding the instruction manual. The operation of the reservation is understood, and the operability is improved.

It should be noted that there are three colors: the color of the portion of the bar graph from "2" to "FULL" in the battery remaining amount display section 47, the character color in the charge reservation state display section 50, and the color of the charge reservation button 23. The colors are the same. This color is different from the other parts of the display screen 22 and the operation buttons 24 to 26, and is, for example, green. Any color may be used, but any color may be used as long as it is different from the colors of the screens and buttons of the other display units.

Next, a charging reservation method for the battery 5 will be described. In the present invention, in the rechargeable battery-type forklift 1, “operation to be performed next” is displayed on the display screen 22 at the time of setting and changing the charging start date and time, setting the maximum speed and acceleration feeling, and switching, which are particularly frequently used.
The "Next button" is displayed in an easy-to-understand manner, and even if the user does not read the instruction manual and operates according to the display on the display screen 22 without needing the instruction manual, the necessary basic operations can be performed. I am trying to. Although described later in detail, a basic display method on the display screen 22 is as follows. The item to be set or changed is highlighted (or flashed). The symbol of the button to be operated blinks. This symbol mark has the same color and shape as the actual button so that it can be easily determined. Press the button to see what happens when you press the button. Instead of blinking the above-mentioned symbol mark, a symbol mark indicating that a button is pressed is displayed blinking (see FIG. 12 described later).

First, a charging reservation method will be described. In the basic screen shown in FIG.
When the button is pressed, a charge reservation screen shown in FIG. On this charge reservation screen, it is necessary to select whether the charge reservation is “specified month or day” or “every day”.
A down symbol mark 54 and an up symbol mark 55 having the same shape and color of the down button 25 and the up button 26 are displayed side by side between the display characters "and" everyday ". In the upper right part of the display screen 22, R
The R symbol mark 56 and the M symbol mark 57, which have the same shape and color as the charge reservation button 23 in which the character is written and the mode switching button 24 in which the character M is written, are displayed up and down.

The data currently reserved is shown below the “month and date designation”. In this case, the reservation is “May 15 (Sat.)”.
PM 10:00 ”, and below the“ daily ”, the already set time“ P
M10: 00 "is displayed. Note that, after the set time, the time is automatically set one week later.

In the charging reservation screens shown in FIGS. 3 and 4, when the charging reservation button 23 is pressed, the setting is made and the next input is performed. When the mode switching button 24 is pressed, the screen returns to the previous screen. It has become. In FIG. 3A, an R symbol mark 56 explaining what happens when the charge reservation button 23 is pressed, and an M symbol mark 57 explaining what happens when the mode switching button 24 is pressed are both blinking. "Set" is displayed to the right of the symbol mark 56, and "Return" is displayed to the right of the M symbol mark 57.

Therefore, the charge start designation is now "month and day designation" which is highlighted, but since the up symbol mark 55 is blinking, the up button 26 corresponding to the up symbol mark 55 is pressed. It can be easily understood that the charge start designation can be set to "every day". Also, R
Since the symbol mark 56 is blinking, it can be seen that when the charge reservation button 23 corresponding to the R symbol mark 56 is pressed, the state currently highlighted on the display screen 22 is "set". Since "57" is blinking, "return to the original" can be easily understood by pressing the mode switching button 24 corresponding to the M symbol mark 57. In other words, when the mode switching button 24 is pressed, FIG.
The screen returns to the basic screen shown in FIG.

When the user presses the charge reservation button 23 in order to make "month and day designation" highlighted on the display screen 22 shown in FIG. 3A, the screen shown in FIG. 3B is displayed. On this display screen 22, the month number of the month, for example, “5” is highlighted and the R symbol mark 56 and the M symbol mark 57 are blinking. Note that a down button 25 and an up button 2 are displayed on the display screen 22 shown in FIG.
Although the symbol mark corresponding to 6 is not displayed, the month value is decreased each time the down button 25 is pressed, and the month value is increased each time the up button 26 is pressed, so that the setting can be changed. It has become.

Since the M symbol mark 57 is blinking and "return" is displayed, pressing the mode switching button 24 returns to the previous screen (the screen in FIG. 3A). Since the R symbol mark 56 is blinking and “set” is displayed, pressing the charge reservation button 23 corresponding to the R symbol mark 56 sets “5” of the currently displayed month. Press the charge reservation button 23 to set it,
The screen shown in FIG. 3C is displayed, and the date is set this time. The date can be set arbitrarily with the down button 25 and the up button 26, and the day of the week changes in conjunction with the day. Also on this display screen 22, pressing the mode switching button 24 returns to the previous screen (the screen of FIG. 3B), and pressing the charge reservation button 23 sets the displayed state, and FIG. The screen changes to the screen shown in d).

In FIG. 3D, the previously set "PM"
Is highlighted and the setting for morning or afternoon is made. AM / PM can be switched with the down button 25 and the up button 26, and when PM is set, "PM" is set by pressing the charge reservation button 23 corresponding to the R symbol mark 56. become.

When the charge reservation button 23 is pressed in FIG. 3D, a screen shown in FIG. 4A is displayed.
The hour “10” is displayed in reverse video, and it can be seen that the time “hour” can be set. The numerical value can be set to an arbitrary numerical value with the down button 25 and the up button 26. Since the R symbol mark 56 and the down symbol mark 54 are blinking, pressing the mode switching button 24 returns to the previous screen. By pressing the charge reservation button 23, the currently displayed numerical value is set.

In the screen shown in FIG.
When the button is pressed, the screen changes to the screen shown in FIG. 4B, and the "minute" portion of the time is highlighted, indicating that the minute is set. Here, the numerical value of the minute can be changed with the down button 25 and the up button 26, and may be changed by one minute each time the button is pressed. However, here, for example, each time the button is pressed once, the value is changed in increments of 15 minutes. I have to. Since it is set to just 10:00 pm, the charge reservation button 2 is displayed in this state.
Pressing 3 sets the charging to start at 10:00 pm.

When the user presses the charge reservation button 23 in the state of FIG. 4B, the screen changes to the screen shown in FIG.
The character "SET COMPLETE" blinks, for example, three times in the lower right corner of the screen and returns to the basic screen shown in FIG. In this charging reservation method, the date and time of charging start are set to “May 15 (Saturday).
Since PM is set to “10:00”, the charging reservation state display section 50 of the display screen 22 shown in FIG.
/ 15 PM 10:00 ". This is because it happened to be the same as the previously reserved data, and it is natural that it changes according to the setting.

On the screen shown in FIG. 3A, when the charge start designation is set from "month and day designation" to "every day", the up symbol mark 55 corresponding to the up button 26 is blinking. By pressing the up button 26, "every day" can be set. Then, when the up button 26 is pressed, as shown in FIG. 5 (a), the character "everyday" is highlighted, indicating that the setting is possible. Since the down symbol mark 54 corresponding to the down button 25 is blinking, the down button 25
By pressing, "month / day designation" can be set.

As shown in FIG. 5A, since the R symbol mark 56 indicating "SET" is blinking, the charge reservation button 2 corresponding to the R symbol mark 56 is displayed.
Press 3 to display the “daily” status displayed on the screen.
Is set (set). Further, since the M symbol mark 57 on which the character “Return” is displayed is blinking, when the mode switching button 24 corresponding to the M symbol mark 57 is pressed, the basic symbol shown in FIG. You will return to the screen.

Then, in FIG.
When is pressed, the screen changes to the screen shown in FIG. 5B, and a setting screen for morning or afternoon is displayed. Here, the “PM” portion is highlighted and the down button 25 or the up button 26
To switch between AM and PM. If the mode switching button 24 corresponding to the flashing M symbol mark 57 is pressed, the screen returns to the previous screen of FIG. 5A, and the charging reservation button 23 corresponding to the flashing R symbol mark 56 is pressed. For example, the currently displayed “PM” is set, and the screen changes to the screen in FIG.

On the screen shown in FIG. 5C, the "10" portion of the "hour" of the time is displayed in reverse video, which indicates that the "hour" is set. On this screen, the user changes the numerical value with the down button 25 and the up button 26, and if the numerical value is acceptable, presses the charge reservation button 23 to set "hour". When the mode switching button 24 is pressed, the screen returns to the previous screen of FIG. 5B.

If the user presses the charge reservation button 23 in FIG. 5C, the screen changes to that shown in FIG. 5D, and the "minute" portion of the time is highlighted. Also on this screen, the minute button is set using the down button 25 and the up button 26. Down button 2
5 or the up button 26 may be changed by one minute each time the push operation is performed.
It is variable every 5 minutes. On the screen shown in FIG. 5D, when the mode switching button 24 corresponding to the M symbol mark 57 is pressed, the screen returns to the previous screen of FIG. 5C.

When the charge reservation button 23 is pressed to set "minute" on the screen shown in FIG. 5 (d), the screen changes to the screen shown in FIG. The screen returns to the basic screen shown in FIG. The time set as described above is displayed on the charging reservation state display unit 50 shown in FIG. After the set time, the time is automatically set to the next day.

FIG. 7 shows a case where data is confirmed. FIG. 7A shows a basic screen, and a total display section 48 is shown.
Indicates the total operating time HR (hour meter).
When the down button 25 or the up button 26 is pressed in the state of the basic screen, the state shown in FIG.
The screen shown in (c) is displayed, and the screen returns to the original screen (the basic screen in FIG. 7A). Also, if any other operation such as a driving operation, a hydraulic operation, a steering operation, or another operation button is pressed even within 5 seconds, FIG.
It returns to the basic screen of (a). FIG. 7 (a)
Indicates the total operating time HR, so the down button 2
5 or the up button 26 is pressed, the total display section 48 displays the same total operating time HR as the basic screen, and the running distance (TRAVEL) not displayed on the basic screen.
12345km), running time (TRAVEL 567)
8.9 HR), hydraulic operating time (HYDRAU 234)
5.6 HR) to confirm the current data.

In the basic screen, a total display section 4
When the number 8 indicates the mileage, the down button 2
When the 5 or up button 26 is pressed, the screen shown in FIG. 7B changes, and the total operating time (98765.4 HR) and the running time (TRAVEL) which are not displayed on the basic screen are displayed.
5678.9 HR), hydraulic operation time (HYDRAU2)
345.6HR), and the current data can be confirmed. Here, in the screen display of the data confirmation, as shown in FIGS. 7B and 7C, the contents (the mileage display,
Alternatively, the contents of the remaining battery level display section 47 are displayed as they are. This is for confirming the necessity in the traveling operation on the actual screen.

Next, a method of setting the driving mode will be described with reference to FIGS. FIG. 8A shows a basic screen. When the mode switching button 24 is pressed, the screen changes to the screen shown in FIG. 8B. On this screen, you can set the speed, high speed (HIGH SPE
The travel mode such as ED), low speed (STD), and high acceleration (HIGH ACCEL), and whether to display the travel distance or the total operating time on the total display unit 48 are set. In FIG. 8B,
The speed numerical value “8”, the running mode “STD”, and the total operating time “HR” are highlighted, indicating that these can be set. FIG. 8B shows a case where the low speed is set. Since the numerical value portion of the speed is blinking, it can be understood that the setting of this portion is performed first.

The numerical value of the speed is changed up and down by using the down button 25 and the up button 26. For example, when the up button 26 is pressed twice, FIG.
The speed can be changed to 10 km as shown in FIG. FIG.
When the down button 25 is pressed twice from the state shown in FIG. 8A, the speed becomes 8 km, and the screen shown in FIG. Then, by pressing the mode switching button 24 in the state shown in FIG. 8B, the speed can be set, and the screen changes to the screen shown in FIG. 8C.

In FIG. 8 (c), a down symbol mark 54 and an up symbol mark 55 are blinking on both sides of the highlighted "STD". You can select either acceleration setting. For example, when the down button 25 corresponding to the down symbol mark 54 is pressed to set the high-speed setting, as shown in FIG.
The character "D" is displayed in reverse video, and at the same time, the display is switched from the down symbol mark 54 to the up symbol mark 55 and blinks. In the state shown in FIG. 9B, when setting the low speed from the high speed setting side, the user presses the up button 26 corresponding to the blinking up symbol mark 55, and the state shown in FIG. As shown, the character "STD" on the low speed setting side is highlighted, and the down symbol mark 54 and the up symbol mark 55 on both sides are displayed.
And blink on and off.

When the mode switching button 24 is pressed in the state shown in FIG. 8C, the screen changes to a screen for selecting whether to display the total operation time or the traveling distance as shown in FIG. 8D. At present, the character "HR" indicating the display of the total operating time is highlighted, and the up symbol mark 55 blinks to indicate that the setting can be made on the traveling distance side. When the up button 26 corresponding to the up symbol mark 55 is pressed, the reverse display is changed to the "km" side indicating the traveling distance, and at the same time, the display is switched to the down symbol mark 54 and blinks.

In the state shown in FIG.
By pressing, the entire contents set on the screen shown in FIG. 8D are set, and the screen returns to the basic screen shown in FIG. 8A.

Next, a method of correcting the date and time will be described. In the above basic screen, the mode switching button 24
For example, if the button is pressed for 3 seconds or more, the screen changes to the correction screen shown in FIG. In this state, “time” or “date” can be selected. In this example, the characters “time” are highlighted and the up symbol mark 55 flashes to indicate “date”.
This indicates that you can select the side. In addition, the M symbol mark 57 blinks, and the character “SET” is displayed beside the M symbol mark 57. By pressing the mode switching button 24 corresponding to the M symbol mark 57, the M symbol mark 57 is set to the highlighted side. You can see that.

When the up button 26 corresponding to the up symbol mark 55 is pressed in the state shown in FIG. 10 (a), the screen changes to the screen shown in FIG. 11 (a). The down symbol mark 54 is blinking so that the time can be selected. When the mode switching button 24 is pressed on the screen of FIG. 10A, the correction of “time” is set at the same time as shown in FIG.
The display is to select morning or afternoon. Here, "A
The letter "M" is highlighted and the user can select "AM" or "PM" by pressing the down button 25 or the up button 26.

When the mode switch button 24 corresponding to the M symbol mark 57 indicating "SET" is pressed on the screen of FIG. 10B to correct or set to "AM", the screen of FIG. 10C is displayed. change. On this screen, the hour of the time is displayed in reverse video, and the time is appropriately corrected with the down button 25 or the up button 26. Then, when the mode switching button 24 is pressed in the same manner as described above, the screen changes to the screen shown in FIG. 10D, the "minute" of the time is highlighted, and the minute is corrected by the up button 26 or the down button 25. When the mode switching button 24 is pressed after the correction, the mode is set, and FIG.
The screen changes to the screen shown in (d), and the text of "Set Complete"
After blinking twice, return to the basic screen. This completes the correction or setting of the time.

When the mode switching button 24 is kept pressed for three seconds or more from the basic screen, a correction screen shown in FIG. 10A is displayed, and the up button 26 corresponding to the flashing up symbol mark 55 is pressed, and the correction screen shown in FIG. Change to the date adjustment screen shown in (). On this screen, when the mode switching button 24 corresponding to the blinking M symbol mark 57 is pressed,
The screen changes to the screen shown in FIG. 11B, the “month” portion is highlighted, and the numerical value is corrected using the up button 26 or the down button 25.

When the mode switching button 24 is pressed in this state, the screen changes to the screen shown in FIG. 11C, and the "day" portion and the "day of the week" portion are highlighted, indicating that correction is possible. The numerical value of the day is corrected by pressing the up button 26 or the down button 25, but the day of the week changes in synchronization with the date. When the mode switching button 24 corresponding to the blinking M symbol mark 57 is pressed on the screen shown in FIG. 11C, the screen changes to the screen shown in FIG.
The display returns to the basic screen after the character "SET COMPLETE" flashes three times. This completes the correction or setting of the date.

In the above embodiment, for example, items to be set / changed, such as "month and day designation" and "every day", are highlighted in the charging start designation. You may do it. In the above description, the actual operation buttons 23 to 26 and the symbol marks 54 to 57 in which the operation buttons 23 to 26 are symbol-marked have the same shape and color, but only the shape is the same. Alternatively, only the colors may be the same.

In the above embodiment, the symbol mark of the button to be operated blinks. For example, as shown in FIG.
7 is blinked, and the charge reservation button 23 and the mode switching button 24 corresponding to this symbol mark are pressed,
"Set" or "Return" was displayed. In FIG. 12, instead of blinking the R symbol mark 56 or the M symbol mark 57, a finger point symbol mark 60 indicating that a button is pressed may be displayed and blinked.

[0057]

According to the display device for a forklift according to the first aspect of the present invention, there is provided a display device provided in the driver's seat of the forklift. A body condition display screen for notifying, and an initial display screen for notifying an operator of preparations for starting operation of the forklift, displaying the initial display screen simultaneously with driving of the forklift, and thereafter Since the above-mentioned vehicle body status display screen is displayed, it is possible to recognize preparations and precautions when starting the operation on the initial display screen, and thus it is possible to enlighten safely work on a daily basis. .

According to the display device of the forklift according to the second aspect, the initial display screen includes the symbol mark for urging the operator to read the instruction manual. Is encouraged to read the instruction manual, and can be enlightened in safety work on a daily basis.

According to the display device of the forklift according to the third aspect, the initial display screen includes a symbol mark for urging the operator to attach the seat belt. The user is encouraged to wear the device, and the safety work can be enlightened on a daily basis.

[Brief description of the drawings]

FIG. 1 is a diagram of a display screen showing a basic screen and various traveling modes according to an embodiment of the present invention.

FIG. 2 is a diagram of a display screen in a key-on state to a key-on state according to the embodiment of the present invention.

FIG. 3 is a diagram of a display screen when a charge reservation is made according to the embodiment of the present invention.

FIG. 4 is a diagram of a display screen when a charge reservation is made according to the embodiment of the present invention.

FIG. 5 is a diagram of a display screen when a charge reservation is made according to the embodiment of the present invention.

FIG. 6 is a diagram of a display screen when the setting of the charging reservation according to the embodiment of the present invention is completed.

FIG. 7 is a diagram of a display screen when performing data confirmation according to the embodiment of the present invention.

FIG. 8 is a diagram of a display screen when a traveling mode according to the embodiment of the present invention is set.

FIG. 9 is a diagram of a display screen when a traveling mode is set according to the embodiment of the present invention.

FIG. 10 is a diagram of a display screen when time is set according to the embodiment of the present invention.

FIG. 11 is a diagram of a display screen when a date is set according to the embodiment of the present invention.

FIG. 12 is a diagram of a display screen showing another example of blinking a symbol mark according to the embodiment of the present invention.

FIG. 13 is a block diagram of an embodiment of the present invention.

FIG. 14 is a side view of the forklift according to the embodiment of the present invention.

[Explanation of symbols]

 22 display screen 23 charge reservation button 24 mode switching button 25 down button 26 up button 37 symbol mark 38 symbol mark

Claims (3)

[Claims] 1. A display device provided at a driver's seat of a forklift, wherein a body status display screen for notifying an operator of a vehicle status such as an operating status or a charging status of the forklift, and an operator operating the forklift. An initial display screen for notifying a preparation matter when starting the vehicle, displaying the initial display screen simultaneously with driving of the forklift, and thereafter displaying the vehicle body status display screen. Forklift display device. 2. The display device for a forklift according to claim 1, wherein the initial display screen includes a symbol mark for urging an operator to read an instruction manual. 3. The forklift display device according to claim 1, wherein said initial display screen includes a symbol mark for urging an operator to fasten a seat belt.