JP5189159B2 - Work machine display - Google Patents

Description

  The present invention relates to a display device for a work machine, such as a wheel loader, which has a handle.

  Conventionally, a work machine is provided with a display device for monitoring a work state. In this display device, a display unit realized by a liquid crystal display or the like and an operation unit made up of a switch group are usually arranged one above the other, or formed integrally with a touch panel or the like (see Patent Documents 1 and 2). .

JP 2008-62791 A JP 2009-257323 A

  By the way, in a wheel-type work machine such as a wheel loader or a dump truck, a handle is installed on the front surface of a console provided in front of the driver's seat. For this reason, in a wheel-type work machine, when a display unit is provided on the front side of the console, a handle is disposed on the front side of the console. And the operation unit are separated and arranged on the console. The display unit is provided at the upper center of the console, and the operation unit is provided at the lower right or lower left of the console.

  On the other hand, the number of switches in the operation unit is preferably small. However, if the number of switches is small, the same switch is used as a different operation switch, so that the screen operation becomes complicated.

  The present invention has been made in view of the above, and is a display of a work machine that allows easy screen operation even when the display unit and the operation unit are separated and the number of switches of the operation unit is small. An object is to provide an apparatus.

In order to solve the above-described problems and achieve the object, a display device for a work machine according to the present invention is arranged on a display screen for displaying an image, at a position separated from the display unit, and the display A screen operation switch group for instructing a preset operation on the display screen of the display, and a plurality of screens on the display screen are switched and displayed according to the instruction of the screen operation switch group, and an effective screen on the display screen A display control unit that performs control to display an image indicating the shape of the operation switch on the display screen, and when the display control unit is switched to the specific display screen, A function different from the function of the specified screen operation switch is assigned to the specified screen operation switch in the group of screen operation switches, and a function different from the function of the other screen operation switch is assigned. Tsu thereby arranged adjacent to the image showing the shape of a switch which displays an image showing said different function displays an image coupling between the image showing the image and said different function indicating the shape of the screen operation switch that the specific characterized in that it.

  In the work machine display device according to the present invention as set forth in the invention described above, the display control unit further displays an image corresponding to the image showing the different function at a place where the different function occurs. .

  Further, in the work machine display device according to the present invention, in the above invention, the display control unit determines an arrangement order of images indicating shapes of screen operation switches effective on the display screen of the screen operation switch group. It arrange | positions corresponding to an arrangement | positioning order, It is characterized by the above-mentioned.

In the work machine display device according to the present invention as set forth in the invention described above, the display control unit highlights an image showing the different functions .

  Also, in the work machine display device according to the present invention, in the above invention, the display control unit displays the plurality of screens by a tab screen, and the tab screen shift for shifting the different functions by one tab screen. The tab screen is switched by a one-way shift that is assigned and circulated as a function.

  In the work machine display device according to the present invention as set forth in the invention described above, the specified screen operation switch is a menu switch for instructing a transition from a standard screen to a user menu screen.

  In the work machine display device according to the present invention, in the above invention, the other screen operation switch includes an upward and downward shift switch, and the shift screen includes the shift switch. A selection item arranged in the vertical direction is selected and displayed by an instruction.

  The display device for a work machine according to the present invention includes a display unit that displays an image on a display screen on a console with a handle disposed on the front surface, and a position on the console that is separated from the display unit. , A screen operation switch group for instructing a preset operation on the display screen of the display unit, and a plurality of screens on the display screen are switched and displayed on the tab screen in accordance with the instruction of the screen operation switch group. A display control unit that performs control to display an image indicating a shape of a screen operation switch effective on the screen on the display screen, and when the display control unit is switched to the tab screen, the tab screen On the other hand, the specified screen operation switch in the screen operation switch group is different from the function of the specified screen operation switch in the tab screen system different from the function of other screen operation switches. Assign the door function, characterized in that by disposed adjacent to an image showing the shape of a screen operation switch with the specific displays an image indicating the tab screen shift function.

  According to the present invention, when the display control unit is switched to a specific display screen, the function of the specified screen operation switch to the specified screen operation switch in the screen operation switch group for the specific display screen Differently, a function different from the function of other screen operation switches is assigned, and an image showing the different functions is displayed adjacent to an image showing the shape of the specified screen operation switch. When the relationship between the switch and the assigned function of the specified screen operation switch can be easily recognized, and the display unit and the screen operation switch group are separated and the number of screen operation switch switches is small Even so, the screen operation becomes easy.

FIG. 1 is an external view showing a schematic configuration of a console arranged in front of the driver's seat. FIG. 2 is a block diagram showing a configuration of a display system centering on a display device having a display unit and a switch panel. FIG. 3 is a diagram illustrating a standard screen displayed on the display unit. FIG. 4 is a diagram showing an external configuration of the switch panel. FIG. 5 is a transition diagram showing screen transition in the display unit. FIG. 6 is a transition diagram showing the transition of the selected large item using the menu switch on the tab menu selection screen. FIG. 7 is a transition diagram showing the transition of the item being selected using the lower shift switch or the upper shift switch on the tab menu selection screen. FIG. 8 is a transition diagram showing the transition between the sub-selection screen and the pop-up screen. FIG. 9 is a diagram showing a sub-selection screen selected from the screen adjustment tab menu selection screen. FIG. 10 is a diagram illustrating an arrangement relationship between an image corresponding to the menu switch and an image indicating a function corresponding to the menu switch.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings.

  FIG. 1 is an external view showing a schematic configuration of a console arranged in front of the driver's seat. As shown in FIG. 1, a handle 2 is disposed from the lower front of the console 1 to the front and in front of the driver's seat. A display unit 11 realized by a liquid crystal display is disposed on the upper left of the console 1. A meter unit 13 is disposed on the upper right side of the console 1. An LED unit 12 is disposed above the display unit 11 and the meter unit. In addition, air outlets 16a and 16b are disposed on the left and right of the top of the console 1, respectively. On the other hand, a switch panel 14 is arranged on the lower right side of the console 1. A switch group 15 is arranged on the lower left side of the console 1. The switch panel 14 and the switch group 15 are arranged so that the handle 2 does not get in the way when operated by the driver's right hand and left hand. Furthermore, the display unit 11, the LED unit 12, and the meter unit 13 are arranged at a position where the driver can easily see in the front direction in a state where the handle 2 is arranged. The switch panel 14 may be arranged on either the left or right side of the lower portion of the console 1.

  From the left, the LED unit 12 has a concentration warning light, a parking brake caution lamp, a direction indicator pilot lamp (left), a headlight upward pilot lamp, a direction indicator pilot lamp (right), a brake accumulator hydraulic caution lamp, and a light pilot lamp. They are arranged and display such as LED lighting is performed. The meter unit 13 has a speedometer disposed at the center, and a tachometer is disposed around the speedometer. In FIG. 1, the speedometer is displayed digitally, and the tachometer is displayed as a needle type. The switch panel 14 includes an operation switch for the air conditioner and an operation switch for the display unit 11. The switch group 15 is a switch group such as a light switch or a wiper switch.

  FIG. 2 is a block diagram showing a configuration of a display system centering on a display device having the display unit 11 and the switch panel 14 described above. The display device 10 includes the above-described display unit 11 and a switch panel 14 as an operation unit. The display device 10 further includes a display control unit 17 that performs display control of the display unit 11 under the control of the control unit 18. The switch group 15, the LED unit 12, and the meter unit 13 described above are connected to the display device 10. In addition, the sensor group 21 and the actuator group 22 may be directly connected to the display device 10. Further, the engine controller 30 and the vehicle body controller 40 are connected to the display device 10 via a communication line such as CAN. Sensor group 31 and actuator group 32, sensor group 41 and actuator group 42 are connected to engine controller 30 and vehicle body controller 40, respectively. The engine controller 30 is a controller that controls the amount of fuel injected into the combustion chamber of the engine based on the detection result of the sensor group 31, for example. The vehicle body controller 40 is a controller that controls an inclination angle of a swash plate of a hydraulic pump driven by a drive unit, for example, an engine, in the vehicle body. The sensor group 31 includes an engine rotation sensor, a vehicle speed sensor, and the like.

  The control unit 18 causes the display unit 11, the LED unit 12, and the meter unit 13 to display information input from the switch panel 14, the sensor groups 21, 31, 41, and the switch group 15.

  Here, the standard screen displayed on the display unit 11 will be described with reference to FIG. As shown in FIG. 3, in the standard screen L0, the engine water temperature gauge is displayed on the upper left, the torque converter oil temperature gauge is displayed on the lower left, the hydraulic oil temperature gauge is displayed on the upper right, and the fuel gauge is displayed on the lower right. . In addition, the state of the air conditioner is displayed at the center of the standard screen L0, the eco gauge showing the fuel consumption status with an indicator at the center left, the shift position pilot lamp at the center right, and the shift indicator thereon. Further, on the standard screen L0, a clock is displayed at the upper center, and various pilot lamps are displayed at the lower center. Various pilot lamps include semi-automatic drilling pilot lamp, auto grease pilot lamp, travel damper pilot lamp, RPM set pilot lamp, remote position pilot lamp, DPF (Diesel Particulate Filter) lamp, emergency steering pilot lamp, output mode pilot A lamp, a shift hold pilot lamp, a lockup pilot lamp, an auto shift pilot lamp, a fan reverse rotation pilot lamp, a preheating pilot lamp, and the like are arranged. In addition, a service meter representing an actual operation time serving as a reference for maintenance of the work machine is arranged on the lower center left of the standard screen L0. Further, an odometer representing an integrated value of the total travel distance is arranged at the lower center right of the standard screen L0. It should be noted that the standard screen L0 only needs to display at least an engine water temperature gauge, a fuel gauge, and a service meter.

  Further, the switch panel 14 will be described with reference to FIG. In FIG. 4, switches SW <b> 1 to SW <b> 10 are air conditioner switches arranged on the top of the switch panel 14. On the other hand, the switches SW11 to SW15 are screen operation switches that are arranged below the switch panel 14 and operate the screen of the display unit 11. The switch SW1 is an air volume increase setting switch. The switch SW2 is a temperature rise setting switch. The switch SW3 is an auto switch. The switch SW4 is an air volume lowering setting switch. The switch SW5 is a temperature lowering setting switch. The switch SW6 is an A / C switch. The switch SW7 is an inside / outside air changeover switch. The switch SW8 is a blower mode changeover switch. The switch SW9 is an off switch. The switch SW10 is a defroster switch. On the other hand, the switch SW11 is an upshift switch. The switch SW12 is a down shift switch. The switch SW13 is a return switch. The switch SW14 is a decision switch. The switch SW15 is a menu switch.

  Next, screen transition of the display unit 11 will be described with reference to FIG. This screen transition is performed by the display control unit 17. First, when the key switch K1 is turned on and power is input, the standard screen L0 shown in FIG. Here, when the menu switch SW15 is pressed while the vehicle speed = 0, that is, the work machine is stopped, a tab menu selection screen L1 which is a lower layer screen is displayed on the display unit 11. The reason for the vehicle speed = 0 is that for safety, the screen operation of the display unit 11 is not performed while the work machine is traveling.

  The tab menu selection screen L1 is a tab screen for selecting large items. In the selected tab screen, the middle shift item can be selected using the upper shift switch SW11 and the lower shift switch SW12. When selecting and switching large items, the menu switch SW15 functions as a switch corresponding to the tab screen shift to the right, and the tab screen is switched each time the menu switch SW15 is pressed. Then, a screen display on which the menu switch SW15 functions as tab screen switching is performed on the display unit 11.

  When the tab menu selection screen L1 is opened, when the vehicle speed is not 0, that is, when the work machine runs, when the return switch SW13 is pressed, or when all the switches SW1 to SW15 are not operated. When a predetermined time set in advance, for example, 30 seconds has elapsed, the screen returns to the standard screen L0. When the menu switch SW15 is selectable on the current display screen, the condition for returning to the standard screen L0 is that all the switches SW1 to SW15 including the menu switch SW15 have not been operated for a predetermined time. When the menu switch SW15 cannot be selected on the current display screen, it is possible to return to the standard screen L0 that the non-operation state of all the switches SW1 to SW14 other than the menu switch SW15 has elapsed for a predetermined time. One of the conditions.

  If the determination switch SW14 is pressed while the tab menu selection screen L1 is open, the screen transits to sub selection screens L2 and L4 for selecting small items. When the determination switch SW14 is pressed while the sub selection screen L2 is displayed, a pop-up screen L3 for the small item selected on the sub selection screen L2 is displayed in the sub selection screen L2. When the determination switch SW14 is pressed and set for the sub-item selected on the sub selection screen L2, the return switch SW13 is pressed, or the screen operation switches SW11 to SW14 other than the menu switch SW15 are not operated. When 30 seconds or more have elapsed, the screen changes to the upper sub-selection screen L2. Further, when the return switch SW13 is pressed while the sub selection screen L2 is displayed, or when no operation state of all the switches SW1 to SW14 other than the menu switch SW15 has passed for 30 seconds or more, the upper tab menu selection screen L1 Transition to.

  On the other hand, when the sub selection screen L4 is displayed, a small item can be selected using the upper shift switch SW11 and the lower shift switch SW12. Depending on the sub-selection screen L4, setting adjustment can be performed using the upper shift switch SW11 and the lower shift switch SW12. In this case, images corresponding to the upper shift switch SW11 and the lower shift switch SW12 are arranged in the image portion corresponding to the setting adjustment target. Furthermore, in a state where the sub selection screen L4 is displayed, the menu switch SW15 can be made to correspond to a switch instructing the reset operation of the adjustment target, and the adjustment target can be reset by pressing the menu switch SW15. A symbol indicating the reset position is displayed on the screen, and an image corresponding to the symbol and the menu switch SW15 is also displayed.

  When the determination switch SW14 is pressed when the sub selection screen L4 is open, or when the return switch SW13 is pressed, or when no operation state of all the switches SW1 to SW15 has elapsed for 30 seconds or more, Transition to the upper tab menu selection screen L1.

  Furthermore, the screen transition and setting process of the display unit 11 will be described with a specific example. In FIG. 6, when the menu switch SW15 is pressed with the vehicle speed = 0 while the standard screen L0 is displayed, the submenu selection screen L11 of the submenu selection screen L1 is initially displayed. Here, the submenu selection screen L11 has five tabs, an energy saving guidance tab, a vehicle body setting / information tab, a DPF playback tab, a maintenance tab, and a monitor setting tab. / Information, DPF regeneration, maintenance, and images showing the contents of monitor settings are drawn sequentially from the left at the top of the screen. In the initial screen, the energy saving guidance tab is displayed as selected.

  Here, the upper shift switch SW11 is a switch for changing the selected state of the middle item to the selected state of the upper middle item on the tab menu selection screen L11. The lower shift switch SW12 is a switch for changing the selected state of the middle item to the selected state of the lower middle item on the tab menu selection screen L11. Further, the return switch SW13 is a switch for making a transition from the tab menu selection screen L11 to the standard screen L0. The decision switch SW14 is a switch that selects a middle item in the selected state and makes a transition to the sub selection screens L2 and L4. On the other hand, the menu switch SW15 is a switch for making a transition from the standard screen L0 to the tab menu selection screen, and is not used on the current tab menu selection screen. That is, among the screen operation switches SW11 to SW15, the screen operation switches SW11 to SW14 are switches used on the tab menu selection screen L1, and the screen operation switch (menu switch) SW15 is not used on the tab menu selection screen L1. Switch.

  Therefore, when the function of the menu switch SW15 is assigned and associated with the right shift switch function indicating the tab screen change and the tab menu selection screen L1 is displayed, the menu switch SW15 is changed to the right shift switch indicating the tab screen change. Use as An association with the right shift switch function indicating the tab screen change of the menu switch SW15 is displayed as an image, and the tab shift position on the image is indicated. In the lower part of the tab menu selection screen L1, switch-shaped images M1 to M5 corresponding to the switches SW11 to SW15 are displayed from the left corresponding to the arrangement of the screen operation switches on the switch panel 14. The images M1 to M5 displayed at the bottom of the tab menu selection screen L1 are only the images M1 to M5 that are the selection targets used on the tab menu selection screen L1. That is, not only the tab menu selection screen L1, but the switch-corresponding image displayed at the bottom of the currently displayed screen, only the switch to be selected on the currently displayed screen is displayed on the screen. As described above, the display control unit 17 differs from the function of the specified screen operation switch for the specified screen operation switch in the screen operation switch group for the specific display screen, and is different from the function of the other screen operation switches. Assign a function, for example, a right shift switch function indicating a tab screen change.

  Here, an image M10 indicating a tab screen change is displayed adjacent to the switch-shaped image M5 corresponding to the menu switch SW15. Thereby, the user can know that the menu switch SW15 corresponds to a switch for changing the tab screen. The image M10 is a triangular image indicating the direction of tab screen change. Then, an image M11 corresponding to the image M10 is arranged between the tab indexes, and the tab to be switched next and its direction can be known by the image M11. Instead of the image M11 or overlapping with the image M11, information indicating the tab screen change direction may be displayed in the selected tab screen.

  In FIG. 6, when the menu switch SW15 is pressed in the state of the tab menu selection screen L11, the screen is sequentially switched to the right tab screen (tab menu selection screen L11 → L12 → L13 → L14 → L15), and again the tab menu selection screen L11. Transition to. As the tab menu selection screen is switched, the image M11 between the tabs is also shifted.

  In this tab menu selection screen L1, if the selected tab is a large item, the selected items of the middle item are arranged vertically in the tab. For example, on the tab menu selection screen L15 that is a monitor setting screen, for example, six selected items such as rear view monitor setting, meter display selection, screen adjustment, clock adjustment, language setting, and ID key information are arranged from the top. . Therefore, when the lower shift switch SW12 is pressed on the tab menu selection screen L15, the middle items positioned below are sequentially displayed in a selected state. That is, the tab menu selection screen transitions sequentially from L15, L151, L152, L153, L154, and L155. Here, up to five selected items on one tab menu selection screen L15 can be displayed, and all the six selected items are not displayed, but the selected middle items are displayed at the bottom. (L154) When the lower shift switch SW12 is further pressed, each middle item is aligned and shifted upward by one middle item, and the middle item at the lower position displayed at the bottom is in a display state and a selection state ( L155). Even when the upper shift switch SW11 is operated, the selected items are selected in the reverse order.

  In this way, on the tab menu selection screen L1, using the menu switch SW15 and the lower shift switch SW12 or the upper shift switch SW11, one of the large items of the left and right tabs and the upper and lower middle items is selected. Middle items can be selected. At this time, even if there is no switch corresponding to the tab screen change switch, by making the menu switch SW15 that is not used in the tab menu selection screen L1 function as the tab screen change switch, a small number of screen operation switches can be used efficiently. .

  In the state where the tab menu selection screen L1 is displayed, the image M10 showing the switch function for changing the tab screen associated with the menu switch SW15 is arranged adjacent to the image M5 corresponding to the menu switch SW15, and the correspondence relationship is established. Since it is displayed, it is possible to easily know the correspondence between the menu switch SW15 and the switch function for changing the tab screen. Furthermore, since the image M10 of the screen change switch function and the image M11 displayed at the corresponding location on the screen are the same image or the same image information display, the menu switch SW15 and the tab screen change switch function Can be easily known.

  Furthermore, when displaying the images M1 to M5 corresponding to the screen operation switches SW11 to SW15 used on the current display screen, the images are displayed corresponding to the arrangement of the switch panel 14 and are necessary on the current display screen. It is arranged and displayed in a state where the space of the image area of no screen operation switch is secured. For example, when the screen operation switch SW14 is unnecessary among the screen operation switches SW11 to SW15 on the current display screen, the image M5 is displayed in a state where a display area in which the image M4 is to be displayed is opened after the images M1 to M3 are displayed. . By performing such display control, it is possible to reduce erroneous operations on the screen operation switch to be used. Of course, the images M1 to M5 display almost the same image as the image shown on the switch panel 14.

  In particular, even when the display unit 11 is disposed on the front surface of the console 1 and the switch panel 14 is disposed at a position separated from the display unit 11 and on the left and right of the console 1 and away from the handle 2 position, Based on this switch guide, various screen operations can be performed with only a few screen operation switches.

  For each display screen, the display control unit 17 switches the screen operation switches SW11 to SW15, images M1 to M5 and images M10, M11, M21, M22, M30, and M31 displayed on the display screen. Are stored in a memory or the like, a corresponding switch function is assigned to each display screen, and control for displaying a corresponding image at a desired location on the display screen is performed. This switch function includes, in addition to the default switch function set in advance for each of the screen operation switches SW11 to SW15, a switch function assigned separately, for example, the right switch function for changing the tab screen described above. The images M1 to M5 described above are preferably the same as the image on the switch panel 14. When a separately assigned switch function is assigned to the image operation switch, it is preferable that an image of the separately assigned switch function is arranged adjacent to the image of the screen operation switch on the display screen.

  Next, the transition from the tab menu selection screen L1 to the sub selection screen L2 and further to the pop-up screen L3 will be specifically described. As shown in FIG. 8, for example, when the determination switch SW14 is pressed in the state of the tab menu selection screen L151 (medium item = monitor display selection state), the screen transits to the sub selection screen L21. The sub-selection screen L21 is an initial screen when the determination switch SW14 is pressed. Of the two small items (left meter display selection and right meter display selection) arranged on the top and bottom of the screen, the left meter display selection is selected. Is selected. Here, by depressing the lower shift switch SW12 or the upper shift switch SW11, one of the small items can be cycled and selected.

  When the determination switch SW14 is pressed with this small item selected, a pop-up screen is displayed. For example, when the determination switch SW14 is pressed on a screen on which a small item for left meter display selection is selected, a pop-up screen LP31 is displayed in this screen. In the pop-up screen LP31, three sub-items (service meter, odometer, clock) corresponding to the left meter display selection are sequentially arranged from the top to the bottom and displayed. Similarly, when the determination switch SW14 is pressed on the screen on which the small item of the right meter display selection is selected, a pop-up screen LP32 is displayed in this screen. On the pop-up screen LP32, four sub-items (fuel consumption meter, clock, odometer, service meter) corresponding to the right meter display selection are sequentially arranged from the top to the bottom. In each of the pop-up screens LP31 and LP32, an arbitrary fine item can be selected by pressing the lower shift switch SW12 or the upper shift switch SW11. By pressing the decision switch SW14 in this selected state, it is possible to return to the sub selection screen L2.

  Next, the transition from the tab menu selection screen L1 to the sub selection screen L4 will be specifically described. As shown in FIG. 9, for example, when the determination switch SW14 is pressed in the state of the tab menu selection screen L152 (medium item = screen adjustment state), the screen transits to the sub selection screen L4. The sub-selection screen L4 is a screen for adjusting the screen. A bar display indicating the brightness (brightness) in a hatched segment is displayed horizontally in the center of the screen, and the brightness is set to be large at the end of the bar. A switch-shaped image M21 corresponding to the shift switch SW11 and a switch-shaped image M22 corresponding to the lower shift switch SW12 whose luminance is set to be small are displayed. That is, normally, the image M1 corresponding to the upper shift switch SW11 and the image M2 corresponding to the lower shift switch SW21 are arranged at the lower part of the screen, but the images M21 and M22 are displayed at the ends of the bars that visualize the magnitude of the luminance. By arranging, the functions of the upper shift switch SW11 and the lower shift switch SW12 are made easier to understand. Therefore, when the upper shift switch SW11 is pressed, the luminance is set to be large and the proportion of the hatched segment is increased, and when the lower shift switch SW12 is pressed, the luminance is set to be small and the proportion of the hatched segment is small. Become. When the brightness adjustment is completed, the brightness adjustment is set by pressing the determination switch SW14, and the screen is shifted to the upper tab menu selection screen L1.

  Here, the user may want to set the brightness default position (size) again during the adjustment. In this case, among the screen operation switches, the menu switch SW15 that is not used on this screen is set to the brightness default position. It corresponds to the function set to. The image M30 corresponding to the function of setting the brightness to the default position is an image having a downward arrow shape, and is arranged on the left side in association with the image M5 corresponding to the menu switch SW15 displayed on the screen. Then, an image M31 similar to the image M30 is arranged at a position indicating the default position of the bar. Therefore, the user can know the default position of the brightness from the image M31, and can reset the brightness to the default position at once by pressing the menu switch SW15.

  As shown in FIG. 10, the image M5 on the screen corresponding to the menu switch SW15 and the image M10 on the screen representing the function associated with the menu switch SW15 are arranged adjacent to each other. The image M10 is preferably connected by an image M10a showing the connection. By displaying this image M10a, the user can easily understand the function associated with the menu switch SW15.

  In addition, it is preferable that the image M10 is highlighted by making the image M10 partly or entirely have a luminance higher than that of the background image of the screen. In addition, the highlight display may be a display in which a change in hue with respect to the background is increased, or a blink display that changes with time. By performing such highlighting, the image M10 which is a part on a large screen can be easily found, and the user's switch function can be recognized quickly.

  The tab menu selection screen L1 described above is displayed as a tab screen, but a tab screen with a new function can be added as an option. This makes it possible to perform more flexible selection setting processing.

DESCRIPTION OF SYMBOLS 1 Console 2 Handle 10 Display apparatus 11 Display part 12 LED unit 13 Meter unit 14 Switch panel 15 Switch group 16a, 16b Air outlet 17 Display control part 18 Control part 21, 31, 41 Sensor group 22, 32, 42 Actuator group 30 Engine Controller 40 Car body controller L0 Standard screen L1, L11-L15, L151-L155 Tab menu selection screen L2, L4, L21, L22 Sub selection screen L3, LP31, LP32 Pop-up screen M1-M5, M10, M10a, M21, M22, M30 , M31 Image SW11 Upper shift switch SW12 Lower shift switch SW13 Return switch SW14 Determination switch SW15 Menu switch

Claims (8)

A display unit for displaying an image on the display screen;
A group of screen operation switches that are arranged at positions separated from the display unit and instruct a preset operation on the display screen of the display unit;
Display control for switching and displaying a plurality of screens on the display screen in accordance with an instruction from the screen operation switch group, and for displaying an image indicating the shape of the effective screen operation switch on the display screen And
With
When the display control unit is switched to a specific display screen, the display control unit is different from the function of the specified screen operation switch in the specified screen operation switch in the screen operation switch group for the specific display screen. A function different from the function of the switch is assigned, and an image showing the different function is displayed adjacent to an image showing the shape of the specified screen operation switch, and an image showing the shape of the specified screen operation switch and the A display device for a work machine, which displays an image that combines images having different functions .   The display device for a work machine according to claim 1, wherein the display control unit further displays an image corresponding to the image showing the different function at a place where the different function occurs.   The display control unit arranges an arrangement order of images indicating shapes of effective screen operation switches on the display screen in correspondence with an arrangement order of the screen operation switch group. A display device for a working machine according to 1. The display device for a working machine according to claim 1, wherein the display control unit highlights an image showing the different functions .   The display control unit displays the plurality of screens on a tab screen, assigns the different functions as a tab screen shift function for shifting the tab screen by one, and switches the tab screen by a one-way shift that circulates. The display device for a work machine according to any one of claims 1 to 4.   6. The display device for a work machine according to claim 1, wherein the specified screen operation switch is a menu switch for instructing a transition from a standard screen to a user menu screen. The other screen operation switches include upward and downward shift switches,
6. The display device for a work machine according to claim 5 , wherein selection items arranged in the vertical direction are selected and displayed in the tab screen according to an instruction of the shift switch. A display unit for displaying an image on a display screen on a console in which a handle is arranged in front;
A group of screen operation switches that are arranged on the console and spaced apart from the display unit, and instruct a preset operation on the display screen of the display unit;
In accordance with an instruction from the screen operation switch group, a plurality of screens on the display screen are switched and displayed on a tab screen, and an image showing the shape of an effective screen operation switch on the display screen is displayed on the display screen. A display control unit to perform,
With
When the display control unit is switched to the tab screen, the function of the other screen operation switch is different from the function of the specified screen operation switch for the specified screen operation switch in the screen operation switch group for the tab screen. A display device for a work machine, wherein a tab screen shift function different from that is assigned, and an image showing the tab screen shift function is displayed adjacent to an image showing the shape of the specified screen operation switch.

Images