JP4746382B2 - Combine display device - Google Patents

Description

The present invention relates to a combine display device.

As a conventional example of the above-mentioned combine display device, there has been one configured as follows . That is, as the engine load display means, five lamp-illuminated display units with numbers “1” to “5” that can be switched between a lighting state and a light-off state and that indicate load levels in the order of the load are loaded. As a display instruction unit, the lamp illumination type display unit closer to the maximum load display position is switched from the unlit state to the lit state as the engine load increases. There is a configuration that displays the engine load by moving the position of the lamp illumination type display unit along the load display setting route (see, for example, Patent Document 1).

  Although not described in detail in the above patent document, in the engine load display means having the above configuration, for example, the range of the first to third load levels is set as the range of the appropriate load, and the fourth load level is set. Is set as a caution load, and the load level of the fifth stage is set as an excessive load. If the engine load increases to the fifth stage load level for some reason, the engine load is too large and the engine Since there is a possibility of stopping, it is necessary for the worker to immediately perform a process of greatly reducing the engine load to obtain an appropriate load, for example, a process of temporarily stopping the operation by stopping traveling.

  Further, when the engine load increases to the load level of the fourth stage, it is judged that the fluctuation of the engine load is a caution load to be careful. Even when this caution load is displayed, the worker can reduce the engine load so that the engine load becomes an appropriate load, for example, reduce the work speed, The process which reduces is performed.

Japanese Patent Laid-Open No. 2001-191872

  In the above configuration, it is possible to determine whether the engine load is an appropriate load, a caution load, or an excessive load based on the display content by the engine load display means, and the operator can determine whether the engine load at that time is The work will be done appropriately according to the situation.

  However, in the above-described conventional configuration, as a display state representing the attention load, one of the five load levels, for example, a lamp illumination type display unit indicating the fourth load level is lit and displayed. From the above, it can be understood that the engine load at that time is larger than the appropriate load and smaller than the excessive load, and the engine load is slightly over the upper limit value of the appropriate load, or the excessive load. The operator cannot determine whether the load is approaching a large load. As a result, when the operator executes the process of reducing the engine load to change from the attention load to the appropriate load, it is not known how much the engine load should be reduced. There is a possibility that the process of reducing the engine load cannot be performed properly, such as being in a state where it cannot be fully utilized, or the amount to be reduced is insufficient and the load cannot be changed from the attention load.

An object of the present invention is to provide a combine display device capable of appropriately performing a process of reducing the engine load in order to change the attention load to an appropriate load when the engine load is an attention load. It is in.

The first characteristic configuration of the combine display device according to the present invention is that the traveling speed display instruction unit is moved along the working speed display setting path extending between the minimum speed display position and the maximum speed display position. a work speed display means for displaying the vehicle speed obtained from the rotational speed, the engine rotational speed in the form to move the load display instruction section along the load display setting path extends between the minimum load display position and maximum load display position obtained an engine load display means for displaying the engine load, the vehicle speed obtained from the rotational speed of the traveling device and the said engine load is configured to simultaneously display,
The working speed display setting path is provided in a semicircular shape projecting upward, and the load display setting path is arranged in a substantially concentric circle on the outer periphery of the working speed display setting path. Provided,
The engine load display means is
Appropriate load display that indicates that the engine load is an appropriate load by arranging a plurality of lighting units that can be switched between a lighting state and a light-off state along the load display setting path. parts, the careful loading display the engine load indicates that a note load, with each are constituted of the excessive load display unit for displaying that the engine load is excessive load,
Each of the appropriate load display unit, the caution load display unit, and the overload display unit is lit and displayed in different colors so as to be identifiable, and from the minimum load display position to the maximum load display position. In the form of switching the lighting part closer to the maximum load display position from the non-lighting state to the lighting state as the engine load increases among the plurality of lighting parts arranged toward the It is configured to move along the load display setting route,
The caution load display unit includes a plurality of lighting units and is configured to display the engine load in a state of being divided into a plurality of stages.

  According to the first characteristic configuration, the engine load display means includes the appropriate load display unit, the caution load display unit, and the overload display unit. However, if the engine load is an appropriate load, no special measures need to be taken, and if the engine load is an excessive load, it can be determined immediately. Therefore, measures will be taken to significantly reduce the engine load.

  And since the caution load display unit is configured to include a plurality of stage display parts for displaying the engine load in a state of being divided into a plurality of stages, when the engine load is the caution load, It can be determined which of the plurality of stage display parts the engine load corresponds to. That is, the operator can determine whether the engine load is close to an appropriate load or close to an excessive load when the load is a caution load.

  As a result, for example, if the engine load is found to be close to the appropriate load among the caution loads, the worker appropriately changes the load from the caution load to the appropriate load by performing a process that slightly reduces the engine load. It is possible to avoid reducing the engine excessively. Also, if the engine load is found to be close to an excessive load among the caution loads, the engine load can be greatly reduced by a sufficient reduction amount, and the load is appropriately changed from the caution load to the appropriate load. Can do.

Therefore, when the engine load is a caution load, it is possible to provide a combine display device that can appropriately perform a process of reducing the engine load in order to change the caution load to an appropriate load.

The engine load display unit turns on the lighting unit closer to the maximum load display position from the extinguishing state as the load increases among the plurality of lighting units arranged from the minimum load display position to the maximum load display position. In the form of switching to the state, the engine load is displayed by moving the position of the lighting part to be turned on along the load display setting route.

  In addition, when the engine load increases sequentially from the minimum load, the lighting section at the minimum load display position first switches from the unlit state to the lighting state, and then the maximum load display than the lighting section at the minimum load display position. The lighting part adjacent to the position side switches from the unlit state to the lighting state, and then the lighting part adjacent to the maximum load display position side from the lighting part switches from the unlit state to the lighting state. In this way, as the engine load increases, the lighting unit that switches from the unlit state to the lit state sequentially moves toward the maximum load display position. Then, the operator can read the engine load from the position of the lighting unit that switches from the unlit state to the lit state.

  Moreover, each of the appropriate load display unit, the caution load display unit, and the overload display unit is configured by a plurality of lighting units, and the lighting unit that switches from the unlit state to the lit state as described above is provided. If it is the lighting part which comprises the said appropriate load display part, it will display that an engine load is an appropriate load, and the lighting part which switches from a light extinction state as mentioned above to a lighting state will comprise the said attention load display part If it is, the engine load is displayed as a caution load, and if the lighting part that switches from the off state to the lighting state as described above is a lighting part that constitutes the overload display part, the engine load is an overload. Will be displayed.

  The caution load display unit is configured to include a plurality of lighting units as a plurality of stage display parts, and the lighting is located on the minimum load display position side among the plurality of lighting units constituting the caution load display unit. When the part switches from the unlit state to the lit state, it indicates that the engine load is close to the appropriate load, and is located on the maximum load display position side among the multiple lit parts that constitute the caution load display part. When the lighting unit to be switched is switched from the unlit state to the lit state, it is displayed that the engine load is in a state close to an excessive load.

In this way, the plurality of lighting sections arranged from the minimum load display position to the maximum load display position are sequentially switched from the unlit state to the lit state, and the change in the position of the lit section that switches from the unlit state to the lit state After the load fluctuates to some extent, it moves to the next lighting part. That is, the display state of the engine load display unit does not change only by a small change in the engine load, and the display state of the engine load display unit does not frequently change with respect to fine changes in the engine load. Therefore, the display is easy to see.
Further, as described above, since the lighting parts in the respective display parts are configured to be lit and displayed in different colors so that they can be identified, when the operator checks the engine load by visually observing the engine load display means In addition, it is easy to sensibly determine whether the engine load is an appropriate load display unit, a caution load display unit, or an overload display unit based on the color difference, and the engine load can be displayed in an easily understandable state. It becomes possible.

According to a second characteristic configuration of the present invention, in addition to the first characteristic configuration, the appropriate load display unit includes a number of lighting units equal to or greater than the number of lighting units in the caution load display unit. The overload display unit is configured to include a number of lighting units equal to or less than the number of lighting units in the caution load display unit.

According to the second characteristic configuration, the appropriate load display unit is configured to include the same or more number of lighting units as the number of lighting units in the caution load display unit, so that the engine load is appropriate. Even if it is a load, it is possible to appropriately determine whether the load is close to the minimum load display position side or close to the maximum load display position side. When the engine load is small in a close state, it is possible to take measures such as increasing the work speed to improve work efficiency. In addition, the overload display unit includes a number of lighting units equal to or less than the number of lighting units in the caution load display unit, while suppressing an increase in the total number of lighting units. It is possible to appropriately display that the load is excessive.

According to a third characteristic configuration of the present invention, in addition to the second characteristic configuration , the appropriate load display unit is obtained by adding the number of lighting units in the attention load display unit and the number of lighting units in the overload display unit. In this respect, it is configured with a large number of lighting units .
According to a fourth feature configuration of the present invention, in addition to any one of the first feature configuration to the third feature configuration, the work speed display means that the work speed display means rotates about one end in the longitudinal direction as a rotation fulcrum. In a needle-type display form provided with an indicator needle as a part and a scale displayed along the work speed display setting path formed in a semicircular shape protruding upward on the back panel of the indicator needle The vehicle speed is configured to be displayed.

In the fifth feature configuration of the present invention, in addition to any of the first feature configuration to the fourth feature configuration, the outer shape is configured by cutting out a part of the lower side of the circle along a straight string. And a main display unit configured to include the engine load display unit and the work speed display unit at an upper portion thereof is provided in a state of being positioned at a left and right center part of a display unit provided on the front side of the driver seat. It is in the point.

The sixth characteristic configuration of the present invention, in addition to the fifth characterizing feature, in a state of being arranged in parallel in the left and right sides of the main display unit, the small-diameter circle than the outer shape the outer diameter of the main display unit A sub-display unit configured by cutting out a part of the main display unit side into an arc shape along the outer shape of the main display unit is provided, and the sub-display units on both the left and right sides inform the operator. As the notification information to be transmitted , notification information other than the notification information displayed on the main display unit is displayed.

According to the sixth characterizing feature, said main sub display unit of the pair on the left and right sides of the display unit is arranged, by displaying the broadcast broadcast information by a pair of sub-display portion, the right and left main display unit and its In each of the pair of sub display units arranged in parallel, it is possible to appropriately display the engine load, the work speed, and the notification information other than these in a state that is easy for the operator to see.

  According to a seventh feature configuration of the present invention, in addition to the sixth feature configuration, the pair of sub display units are configured to display an engine rotation speed and a remaining fuel amount as the notification information. .

According to the seventh characteristic configuration, since the engine speed and the remaining fuel amount are displayed on the pair of sub-display portions arranged in parallel on the left and right sides of the main display portion, the rotation of the engine that is the power source of the combine The speed and the remaining amount of fuel to be supplied to the engine can be displayed in an easily understandable state. Such engine rotation speed and fuel remaining amount need to be checked by the operator as appropriate in order to perform the work properly and continuously. By displaying such notification information on the pair of sub-display units, The worker can easily confirm the notification information necessary for continuing such work.

Eighth characterizing feature of the present invention, in addition to any of the fifth characterizing feature to seventh characterizing feature, said main under the display unit provided with an auxiliary display unit, the auxiliary display unit is configured to image display type In addition, a plurality of types of notification information other than the notification information displayed on the upper part of the main display unit and the notification information displayed on the sub display unit are displayed side by side.

According to the eighth characterizing feature, the auxiliary display unit, and configured to display side by side a plurality of kinds of broadcast information other than broadcast information is displayed on broadcast information and the sub display section is displayed on the main display unit Therefore, the notification information to be notified to the operator can be appropriately displayed in a troublesome and troublesome state such as sequentially displaying a plurality of types of notification information by switching the display state.

Hereinafter, the embodiments of the combine a display device according to the present invention will be described with reference to FIG surface.
As shown in FIG. 1, the combine is provided with a cutting unit 1 at the front of a machine body V having a pair of left and right crawler travel devices 30 in a state in which it can be swung up and down around a horizontal axis X by a cutting lift cylinder 5. Provided in the machine body V, a threshing unit 2 that performs a handling process of the harvested cereal and a grain sorting process, a grain tank 3 as a storage unit that stores the grains supplied from the threshing part 2, and The unloader 32 and the like for discharging the grain from the Glen tank 3 are equipped. The glen tank 3 is provided with a fir sensor S6 for detecting the amount of grain (fir) stored therein.

  The cutting unit 1 includes a weeding tool 33 attached to the tip part, a culm raising device 34, a cutting blade 35 that cuts the stock of the culm that has been caused, and a chopping part that receives the cutting cereal meal on the tip side. A vertical conveying device 36 and the like that are transferred to the feed chain 52 are provided. In addition, an ultrasonic sensor S1 for detecting the height of the cutting unit 1 with respect to the ground and a stock sensor S2 for detecting that the cutting grain is being detected by detecting the presence of the cutting cereal meal and performing the on operation. Is provided. Then, based on the information of the ultrasonic sensor S1, cutting height control is performed to control the operation of the cutting lift cylinder 5 so that the ground height of the cutting unit 1 is maintained at the target set height.

  The unloader 32 includes a discharge port 32a having a downward posture at the distal end portion, and is supported by a support portion 32b in a state where the base end side is swingable up and down around the horizontal axis Z. The support portion 32b is around the vertical axis Y. It is supported by the body V in a state where it can be swung freely. An unloader hydraulic cylinder 62 for driving the unloader 32 up and down, an unloader turning motor M3 for turning driving, and a potentiometer type unloader position sensor S3 for detecting the turning position of the support portion 32b are provided. It has been. In addition to the unloader position sensor S3, a limit switch (not shown) for detecting the limit position of the turning operation in the ascending direction and the left-right direction is also provided, and the unloader for controlling the operation of the unloader 32 based on the information. The control is configured to be executed.

  As shown in FIG. 2, the threshing unit 2 is a sorting unit including a handling chamber A that houses the handling cylinder 51, a feed chain 52 that conveys the cereals supplied from the cutting unit 1, a thimble 53, and a swing sorting plate 54. Device B, first mouth 55 for grain recovery, second mouth 56 for collecting a mixture of grain and sawdust (second thing), and the like are provided. And the processed material processed in the processing chamber A leaks to the sorting device B from the receiving net 57 provided in the lower part of the operating chamber A, and other processed materials are selected from the rear end of the receiving net 57. Drop into device B. The grain recovered at the first port 55 is transferred to the Glen tank 3 by a screw-type transfer device (not shown), and the second item recovered at the second port 56 is the screw-type second number. The conveyor device 63 is configured to return to the start end side of the swing sorting plate 54. Further, on the rear side of the threshing unit 2, a waste wall cutter unit 64 for cutting the waste discharged from the threshing unit 2 is provided, and a waste wall clogging detection switch S15 for detecting clogging of the waste wall cutter unit 64 is provided. Is provided.

  The swing sorting plate 54 of the sorting apparatus B includes a grain pan 58 positioned above the tow 53, a chaff sheave 59 positioned behind the grain pan 58, and a grain sheave 61 positioned below the chaff sheave 59. The chaff sheave 59 is composed of a plurality of band plate-like members juxtaposed in the workpiece transfer direction, and the interval (chaff opening) between the adjacent band plate-like members is changed by the chaff opening adjustment motor M4. Has been. Note that S8 is a sheave sensor that detects the amount of the sorting processed product on the swing sorting plate 54. The tomi 53 is for blowing the sorting wind, and the wind force (toumi) exerted on the processed material on the swing sorting plate 54 by opening and closing the rear fan case cover 53a with the tomi wind power adjusting motor M5. Wind power) is configured to be changed.

  Then, the chaff opening adjusting motor M4 and the tomi wind power adjusting motor are set so that the amount of the leakage processed material on the swing sorting plate from the handling chamber A becomes a target value so that the sorting process in the sorting device B is properly performed. Threshing control for controlling the operation of M5 is executed. At this time, if the work speed is increased, the amount of harvested cereal mash supplied to the handling chamber A is increased and the amount of leakage processed material from the handling chamber A is increased. It is the structure which correct | amends so that the chaff opening degree and tomi wind force may become large, so that the supply amount of the cereal to the handling room A to be increased. Therefore, the engine load can be changed and adjusted by changing the target value of the amount of the leaked processed material on the swing sorting plate 54 or changing the work speed.

  Next, the power transmission system is shown in FIG. The output of the engine E mounted on the machine body V is transmitted to the threshing unit 2 via the threshing clutch 37 and also transmitted to the mission unit 40 of the crawler traveling device 30 via the traveling clutch 38 and the continuously variable transmission 39. The The output transmitted to the mission unit 40 is transmitted to the crawler traveling device 30 via the auxiliary transmission 42 provided in the mission unit 40, while being transmitted to the cutting unit 1 via the cutting transmission 43 and the cutting clutch 41. Communicated. Then, based on the rotational speed of the input shaft of the crawler traveling device 30 driven by the power after being shifted by the auxiliary transmission 42, the vehicle speed sensor S4 that detects the working speed, and the rotational speed of the engine E are detected. An engine speed sensor S5, a water temperature sensor S7 for detecting the coolant temperature of the engine E, and the like are provided.

  As will be described later, the continuously variable transmission 39 can be continuously variable by a transmission motor M6, and a manually operated main transmission lever 7 provided in the driving unit 31 in preference to the operation of the transmission motor M6. The gear can be manually operated at Further, the sub-transmission device 42 is operated by operating the sub-transmission hydraulic cylinder 65 in three speeds: a high-speed state for traveling on the road, a low-speed state for cutting work, and a neutral state for cutting off power transmission to the crawler traveling device 30. It is configured to be freely switchable. A sub-transmission sensor S10 is provided for detecting at which shift position the sub-transmission device 42 is located.

  The cutting gear shifter 43 is configured to be switched between a high speed state and a low speed state by operating the cutting gear shift hydraulic cylinder 66, and the relative speed of the cutting work speed of the cutting part 1 with respect to the combine work speed is determined according to the type of crop. And can be switched between two levels, high and low, according to the difference in the lodging state of the planted cereal. A cutting shift sensor S11 that detects which shift state the cutting transmission 43 is in is provided.

  Although the auxiliary transmission device 42 is not shown in its mounting configuration, the toggle operation type auxiliary transmission changeover switch 9 provided in the grip portion of the main transmission lever 7 so as to be operated by a finger and the main transmission lever 7 in the operation unit 31 are described. The shift state is switched based on a command from the sub-shift neutral switch 10 provided at another location (see FIG. 9), and the sub-shift switch 9 is turned on while the sub-shift neutral switch 10 is being turned off. It is possible to switch between a high speed state and a low speed state by switching operation, and to switch to the neutral state by turning on the sub-shift neutral switch 10.

  Further, the cutting transmission 43 is configured to be switched between a high speed state and a low speed state by switching a toggle operation type cutting gear changeover switch 11 provided on the grip portion of the main transmission lever 7 so as to be operated by a finger. (See FIG. 9).

  The operation unit 31 is provided with a cross operation type cutting height steering lever 8 configured to be used both as a cutting up / down commanding tool for moving up and down the cutting unit 1 and a turning operation commanding tool for turning the machine body V left and right. Yes. That is, when the cutting height steering lever 8 is operated to swing backward, the cutting unit 1 is raised, and when it is operated swinging forward, the cutting unit 1 is lowered. The machine body is configured to turn left when the cutting height steering lever 8 is swung to the left, and to turn right when the cutting height steering lever 8 is swung to the right.

A display unit C for displaying a plurality of types of notification information to be notified to the operator during the operation of the combiner is provided on the front side of the driver seat in the driver 31. The display unit C includes a main display C1, and a pair of sub-displays C2 and C2 in a state of being arranged in parallel on the left and right sides of the main display C1. Further , an auxiliary display part C3 is provided in the main display part C1.

The main display unit C1 will be described. The main display unit C1 is configured to display a work speed and an engine load as notification information at an upper part thereof . That is, as a work speed display means for displaying the work speed in a form in which the work speed display instruction section is moved according to the work speed along the work speed display setting route Q1 extending between the minimum speed display position and the maximum speed display position. The engine load that displays the engine load in a form in which the load display instruction unit 12 is moved in accordance with the engine load along the load display setting route Q2 extending between the minimum load display position and the maximum load display position. An engine load display meter 13 as display means is provided.

  In other words, as shown in FIG. 4, a work speed meter 12 for displaying the work speed detected by the speed sensor S4 is provided on the main display part C1 located at the center in the left-right direction of the display unit C. The work speed meter 12 is configured so that the work speed display setting path Q1 has an upward protruding arc shape, and the indicator needle 12a as the work speed display instruction section is moved along the work speed display setting path Q1. It is configured.

  That is, the indicator needle 12a is configured to rotate so as to draw an arcuate locus with the other end in the longitudinal direction protruding upward with one end in the longitudinal direction as a pivot, and the back surface at the position serving as the pivot On the inner back side of the panel, although not shown, there is provided a rotation driving unit that rotates the indicator needle 12a so that the rotation angle increases as the work speed detected by the vehicle speed sensor S4 increases. Yes. The current working speed can be read by determining the position of the other end in the longitudinal direction of the indicating needle 12a in correspondence with the scale 12b displayed on the rear panel.

  When the work speed is zero speed, the indicator needle 12a is at the zero speed position rotated most counterclockwise, and the indicator needle 12a rotates clockwise with the rotation angle increasing as the work speed increases. The indicator needle 12a has a posture inclined slightly to the lower left side than the horizontal direction at the zero speed position, and a posture inclined slightly to the lower right side than the horizontal direction at the maximum speed position. The rotation position is set so that the rotation position can be rotated over a wide range exceeding 180 degrees, and the operation speed can be accurately displayed with high resolution. In this embodiment, the working speed at the maximum speed position is set to 4 m / sec.

Next, the engine load indicator 13 will be described.
The engine load display meter 13 is provided along the arc-shaped outer periphery of the work speed meter 12, and is used for load display along a load display setting route Q2 extending over the minimum load display position and the maximum load display position. The engine load is displayed in a form in which the instruction unit is moved according to the engine load.

  The engine load display meter 13 includes an appropriate load display unit 13A that displays that the engine load is an appropriate load, a caution load display unit 13B that displays that the engine load is a caution load, and the engine load is excessive. Each is provided with an overload display portion 13C for displaying that it is a load. Further, a plurality of lighting portions that can be switched between a lighting state and a light-off state are arranged in parallel along the load display setting path Q2 as the load display instruction portion, and the appropriate load display is performed by the plurality of lighting portions. Each of the unit 13A, the caution load display unit 13B, and the overload display unit 13C is configured, and the load is among the plurality of lighting units arranged from the minimum load display position toward the maximum load display position. As the number increases, the lighting unit closer to the maximum load display position is switched from the non-lighting state to the lighting state, and the position of the lighting unit to be in the lighting state is configured to move along the set route. The part 13B includes a plurality of lighting parts as the plurality of stage display parts.

  Further, the appropriate load display unit 13A includes a number of lighting units equal to or greater than the number of lighting units in the caution load display unit 13B, and the overload display unit 13C includes the caution load. The display unit 13B is configured to include the same number of lighting units as the number of lighting units or fewer than that.

Hereinafter, a specific configuration of the engine load indicator 13 will be described based on the drawings.
As shown in FIG. 5, the engine load indicator 13 has the load display setting route Q2 in an upward projecting arc shape arranged on the outer side of the work speed display setting route Q1, and is in a lit state and an unlit state. Among the plurality of segment display portions 13a arranged in parallel from the minimum load display position to the maximum load display position by arranging the segment display portions 13a as a plurality of lighting portions that can be switched to each other along the load display setting path Q2. As the load increases, the segment display portion 13a closer to the maximum load display position is switched from the unlit state to the lit state, and the position of the segment display portion 13a to be lit is set along the load display setting route Q2. Are configured to move.

  That is, the engine load indicator 13 includes a plurality of (specifically, 13) segment display units 13a arranged in a line, and each of the plurality of segment display units 13a has a light emitting diode (LED). Are individually installed, and can be switched between a lighting state and a light-off state individually.

  Further, as shown in FIG. 6, the engine load display meter 13 includes a casing 70 integrally formed in a state of being bent in an arc shape along the arc-shaped outer peripheral portion of the work speed meter 12. In this casing 70, 13 light transmitting openings for forming 13 segment display portions 13a are partitioned and formed in a line in an arc shape. Each of the light transmitting openings defined by the casing 70 is provided with a light emitting diode 71 at a position on the inner side of the opening, and the light emitting diode 71 emits light at a position on the surface side. A diffusion plate 72 for diffusing light is provided. The engine load indicator 13 is configured to display the engine load in such a manner that the number of segment display portions 13a that are lit and displayed from the first one located at the end on the counterclockwise direction is sequentially increased as will be described later. It has become.

  Further, the segment display unit 13a in the appropriate load display unit 13A, the segment display unit 13a in the attention load display unit 13B, and the segment display unit 13a in the overload display unit 13C are lit in different colors so that they can be identified. It is configured as follows.

  Specifically, among the 13 segment display portions 13a, the display color is green (G) from the first one located at the counterclockwise end to the eighth position counted in the clockwise direction. The ninth to eleventh display colors are yellow (Y), and the twelfth and thirteenth display colors are red (R) so that light emitting diodes 71 of different colors are used. Has been. Accordingly, the eight segment display portions 13a from the first one to the eighth one in the clockwise direction constitute the appropriate load display portion 13A, and the three from the ninth to the eleventh one are displayed. The segment display unit 13a constitutes the attention load display unit 13B, and the two segment display units 13a up to the twelfth and thirteenth ones constitute the overload display unit 13C.

  As described above, the attention load display unit 13B includes the three segment display units 13a, and includes a plurality of (three) stage display portions that display a plurality of engine loads, specifically, three stages. Will be configured. Further, the appropriate load display unit 13A includes a number of segment display units 13a larger than the number of segment display units 13a in the caution load display unit 13B, and the overload display unit 13C includes the caution load display unit 13B. The number of segment display units 13a is smaller than the number of segment display units 13a.

As shown in FIG. 4, the sub-display portion C2 located on the left side of the main display portion C1 among the sub-display portions C2 located on the left and right sides of the main display portion C1 is detected by the engine speed sensor S5. An indicator needle type engine tachometer 14 for displaying the engine speed is provided, and an indicator needle type fuel indicating the remaining amount of fuel in the fuel tank is displayed on the sub display C2 located on the right side of the main display C1. A total of 15 is provided. Accordingly, the pair of sub display units C2 are configured to display the engine speed and the remaining fuel amount as the notification information.
Although not shown, the fuel tank is provided with a fuel remaining amount sensor S9 for detecting the fuel remaining amount in the fuel tank (see FIG. 9).

  Similar to the work speedometer 12, the engine speedometer 14 rotates so that an indicator needle 14a, which is an example of an indicator, draws an arc-shaped locus with one end in the longitudinal direction as a rotation fulcrum. Although not shown in the figure, the rotation angle increases as the engine rotation speed detected by the engine rotation speed sensor S5 increases. A rotation drive unit that rotates the indication needle 14a is provided. The current engine speed can be read by determining the position of the other end in the longitudinal direction of the indicator needle 14a in correspondence with the scale 14b displayed on the rear panel.

  When the engine speed is zero, the indicator needle 14a is at the zero speed position rotated most counterclockwise, and the indicator needle 14a rotates clockwise with the rotation angle increasing as the engine speed increases. In this embodiment, the maximum rotation speed is set to 3000 rpm.

  As with the work speedometer 12, the fuel gauge 15 rotates so that the indicator needle 15a, which is an example of an indicator, has an arcuate locus on the other end in the longitudinal direction with the one end in the longitudinal direction as a pivot. Although not shown, the smaller the remaining amount of fuel detected by the fuel remaining amount sensor S9, the larger the rotation angle becomes at the inner back side of the rear panel at the position that becomes the rotation fulcrum. In this way, a rotation drive unit that rotates the indication needle 15a is provided. The current fuel remaining amount can be read by determining the position of the other end in the longitudinal direction of the indicating needle 15a in correspondence with the scale 15b displayed on the rear panel.

  When the remaining amount of fuel is full, the indicating hand 15a is in the position rotated most counterclockwise. When the remaining amount of fuel decreases, the indicating hand 15a rotates in the clockwise direction according to the amount of decrease. When the indicator needle 15a is in the most clockwise position, it indicates that the remaining amount of fuel is zero or substantially zero.

The main display portion C1 has a fuel remaining amount, an engine rotation speed, a work speed, and an engine load among a plurality of pieces of notification information to be notified to the worker in a state of being arranged below the work speed meter 12. The auxiliary display part C3 which arranges and displays several other alerting | reporting information except each information of these is provided. The auxiliary display unit C3 is configured by a dot matrix type liquid crystal display device capable of displaying image information, and is configured to display the plurality of notification information side by side by image display.

  The auxiliary display unit C3 displays a plurality of pieces of broadcast information that are displayed in a plurality of types of broadcast information, and a number of pieces of broadcast information that is smaller than the number of pieces of broadcast information that are displayed in the multiple information display state of the multiple types of broadcast information. It is configured to be switchable to the display state of the minority information to be displayed, and is configured to be freely changeable from among a plurality of types of notification information for displaying the notification information to be displayed in the multiple information display state in the minority information display state. . The display state of the auxiliary display unit C3 is switched by operating a mode switch 80 as described later.

  A specific display form will be described. In the multiple information display state, as shown in FIG. 10 (a), the grains stored in the Glen tank 3 (in the figure, indicated as “fir”). , The amount of sorting processed product on the swing sorting plate 54 detected by the sheave sensor S8 (indicated as “sheave” in the figure), and the cooling water in the engine E detected by the water temperature sensor S7. Each information of water temperature is displayed. In addition to the information, the auxiliary display section C3 includes left and right turn signal displays 74, an hour meter 75 indicating the combined operation time of the combine, a charge alarm display 76 indicating that the remaining battery charge is low, and an oil abnormality Is also displayed side by side.

  In the minority information display state, as shown in FIG. 12, one information among the grain storage amount, the amount of selected processed products, and the water temperature of the engine cooling water is displayed in an enlarged state than in the multiple information display state. To do. Switching of information to be displayed is performed by operating a display changeover switch 81 described later.

  Further, the auxiliary display unit C3 is configured to display message information for responding to the abnormality in place of the notification information as described above in an abnormal state where the abnormality is occurring in the combine. Yes.

The left sub-display C2 is provided with a sub-transmission display C4 that displays the current shift state of the sub-transmission device 42 in a state of being arranged below the engine tachometer 14. .
The auxiliary transmission display portion C4 includes a high-speed display portion 16 indicating a high-speed state, a low-speed display portion 17 indicating a low-speed state, and a neutral display portion 18 indicating a neutral state arranged in the horizontal direction. The display parts 16, 17 and 18 are internally provided with an illumination lamp 73 made of an LED lamp or the like, and the illumination lamp 73 of the display part corresponding to the current shift state among the three display parts is turned on. It is configured to display the current shift state of the sub-transmission device 42 by turning off the illumination lamp 73 of the display portion other than.

  Specifically, as shown in FIG. 7, the display surface of the auxiliary transmission display unit C4 is configured to be covered with a light-shielding panel 19 that does not transmit light, and the high-speed display portion 16 includes the display surface. A part of the panel 19 is composed of an H-shaped translucent member 20 such that the letter “H” is displayed brightly when the illumination lamp 73 is lit, and “H” is indicated when the illumination lamp 73 is extinguished. Characters are configured to be shaded. Similarly, the low-speed display portion 17 is configured by an L-shaped translucent member 21 such that a part of the panel 19 of the display surface portion is displayed brightly when the illumination lamp 73 is lit. When the illumination lamp 73 is turned off, the letter “L” is displayed in a shaded manner. Further, the neutral display portion 18 is constituted by an N-shaped translucent member 22 in which a part of the panel 19 of the display surface portion is displayed with a bright “N” character when the illumination lamp 73 is turned on. When the illumination lamp 73 is turned off, the character “N” is displayed in a shaded manner.

  The high-speed display portion 16, the low-speed display portion 17, and the neutral display portion 18 that are provided side by side in this manner are in a display state in which character information is displayed brightly when the illumination lamp 73 is turned on, and when the illumination lamp 73 is turned off. It is configured to switch to shaded display, and the display state is controlled so that one of them is in the display state and the other is in the shaded display. Since the user knows the existence of not only the brightly displayed part but also the shaded display part, the number of gears to be changed is present, and it is easy to see which of the gears is currently in the shift state. Can be displayed with.

The right sub-display C2 is provided with a cutting shift display C5 that displays the current shift state of the cutting transmission 43 in a state of being arranged below the fuel gauge 15 below.
Like the sub-shift display C4, the cut-shift display C5 includes a high-speed display portion 23 indicating a high-speed state and a low-speed display portion 24 indicating a low-speed state in a state in which an illumination lamp 73 is provided. It is configured to display the current shift state of the cutting transmission 43 by turning on the illumination lamp 73 of the display portion corresponding to the shift state of the other and turning off the illumination lamps 73 of the other display portions.

  Specifically, as shown in FIG. 8, the cutting shift display portion C5 is configured such that the display surface is covered with a light-shielding panel 25, and the high-speed display portion 23 has a part of the panel 25 as a part. The H-shaped translucent member 26 is displayed so that the letter “H” is displayed brightly when the illumination lamp 73 is turned on, and the letter “H” is displayed in a shaded manner when the illumination lamp 73 is turned off. It is configured. Similarly, the low-speed display portion 24 is configured by an L-shaped translucent member 27 so that the letter “L” is displayed brightly when the illumination lamp 73 is turned on. When the light is turned off, the character “L” is displayed in a shaded manner.

  Further, on the lateral side of the display unit C, there are provided a mode selector switch 80 for instructing switching of the display state in the auxiliary display section C3 and a display selector switch 81 for instructing switching of display contents. , 81 are constituted by push-button switches that are turned on only when a push operation is performed and are turned off when the push operation is not performed.

  As shown in FIG. 9, a control unit 28 configured by using a microcomputer is provided. The control unit 28 includes an ultrasonic sensor S1, a stock sensor S2, an unloader position sensor S3, a vehicle speed sensor S4, and an engine rotation. The detection information of the speed sensor S5 and the sheave sensor S8 is input, and the detection information of the fir sensor S6, the water temperature sensor S7, the remaining fuel sensor S9, the auxiliary shift sensor S10, and the cutting shift sensor S11 is also input to the control unit 28. In addition, information on the sub-shift switch 9, the sub-shift neutral switch 10, the mowing shift switch 11, the mode switch 80, and the display switch 81 is also input to the control unit 28.

  On the other hand, the control unit 28 includes a cutting lift cylinder 5, an unloader hydraulic cylinder 62, an unloader turning motor M3, a chaff opening adjusting motor M4, a tomi wind power adjusting motor M5, a speed changing motor M6 for shifting the vehicle speed, and a sub shifting gear. The drive signals for the hydraulic cylinder 65, the cutting shift hydraulic cylinder 66, and the display unit C are output. And the control part 28 is comprised so that the said each cylinder and each motor may be driven based on the information of each said sensor, and various controls, such as cutting height control, unloader control, and threshing control, may be performed.

The control unit 28 is configured to control the display operation in the display unit C. Hereinafter, specific contents of display control by the control unit 28 will be described.
As shown in FIG. 11, the control unit 28 operates the work speed meter 12 to correspond to the current work speed based on the detection information of the speed sensor S4, and the engine based on the detection information of the engine rotation speed sensor S5. The engine tachometer 14 is operated so as to correspond to the rotational speed of E, and the fuel meter 15 is operated so as to correspond to the fuel remaining amount of the fuel tank based on the detection information of the fuel remaining amount sensor S9 (step 1) .

  When the description of the display of the work speed is added, the control unit 28 causes the turning angle of the indicator needle 12a of the work speed meter 12 to be a turning angle corresponding to the current working speed detected by the vehicle speed sensor S4. The operation of the rotation drive unit of the work speed meter 12 is controlled.

  Similarly, the rotation speed of the indicator needle 14a of the engine rotation speed meter 14 is the rotation angle corresponding to the current engine rotation speed detected by the engine rotation speed sensor S5. The operation of the rotation drive unit of the engine rotation speed meter 14 is controlled. Similarly, with respect to the fuel gauge 15, the fuel gauge 15 so that the turning angle of the indicating needle 15a of the fuel gauge 15 becomes a turning angle corresponding to the current remaining fuel amount detected by the remaining fuel amount sensor S9. The operation of the 15 rotation driving units is controlled.

  Further, based on the command information of the sub-shift switch 9 and the sub-shift neutral switch 10, the operation of the sub-shift hydraulic cylinder 65 is controlled so as to change to the corresponding shift state, and the sub-transmission device 42 is operated to shift. However, since it is possible to determine the current shift state of the current sub-transmission device 42 based on the detection information of the sub-transmission sensor S10 at that time, the sub-transmission display unit C4 displays the current shift state based on the determination result. Which speed change state the auxiliary transmission 42 is in is displayed (step 2). That is, the illumination lamp 73 is turned on and brightly displayed for any of the high-speed display portion 16, the low-speed display portion 17, and the neutral display portion 18 of the auxiliary transmission display portion C 4, and the illumination lamp 73 is turned off for the others. And darken it.

  Further, the control unit 28 controls the operation of the cutting shift hydraulic cylinder 66 so as to be in a corresponding shift state based on the command information of the cutting shift changeover switch 11 and shifts the cutting transmission 43. Based on the detection information of the cutting shift sensor S11, it is possible to determine which shift state the current cutting transmission 43 is in. Therefore, on the cutting shift display C5, the current cutting transmission is displayed based on the determination result. Which shift state 43 is displayed is displayed (step 2). Specifically, the illumination lamp 73 corresponding to either the high speed display portion 19 or the low speed display portion 20 of the cutting shift display portion C5 is turned on, and the other illumination lamps 73 are turned off.

  Then, in a normal state where the combine is operating normally, the control unit 28 displays the plurality of segment display units 13a in the engine load indicator 13 from one end side in the arrangement direction, for example, as shown in FIG. The engine load is displayed by sequentially increasing the number of segment display sections 13a to be displayed, and in an abnormal state where an abnormality has occurred in the combine, all of the plurality of segment display sections 13a are flashed and displayed (step 4). .

  The structure for detecting the engine load will be described. In this combine, when the engine E is in a no-load state where no load is applied, the operator performs an accelerator operation so that the engine speed is set in advance. The accelerator operation position of the engine E is adjusted so as to become a set reference rotation speed (for example, 2800 rpm). When the engine rotation speed becomes the reference rotation speed, the position is fixed at the accelerator operation position, and the subsequent work It is the composition which performs.

  When a load is applied to the engine E, the engine rotation speed decreases from the reference rotation speed according to the magnitude of the engine load. Therefore, as will be described later, the engine rotation from the reference rotation speed is previously determined based on experimental data or the like. The map data is set in a state in which the speed reduction amount and the magnitude of the engine load are associated with each other, and the control unit 28 determines the difference between the engine rotation speed detected by the engine rotation speed sensor S5 and the reference rotation speed, that is, The engine speed reduction amount is obtained by calculation, and the engine load is obtained based on the engine speed reduction amount and the map data.

  Specifically, when a load is applied to the engine E, the engine rotation speed decreases from the reference rotation speed Ns, but the difference between the reference rotation speed Ns and the engine rotation speed Nx detected by the engine rotation speed sensor S5. As shown in Table 1, each load level is set according to (Ns−Nx), that is, the engine speed reduction amount at that time.

  When displaying the obtained engine load, as shown in Table 1, the control unit 28 positions the 13 segment display units 13a on one end side in the arrangement direction, that is, on the counterclockwise side end portion. The engine load is displayed in the form of sequentially increasing the number of segment display portions 13a that are lit and displayed from the first one. Accordingly, when the engine load is an appropriate load, the green segment display portion 13a of the appropriate load display portion 13A is lit, and when the engine load increases and becomes a caution load, the eight green lights of the appropriate load display portion 13A are displayed. In addition to the segment display part 13a, the yellow segment display part 13a of the attention load display part 13B is lit. Furthermore, when the engine load increases and the engine is overloaded, the red segment display unit 13a of the overload display unit 13C is turned on in addition to the eight green segment display units 13a and the three yellow segment display units 13a. become.

  If the red segment display portion 13a of the overload display portion 13C is lit and the engine load is in an overload state, the engine load is greatly reduced because there is a high risk of engine stall. Thus, for example, measures such as stopping traveling of the vehicle body are taken.

  In this combine, the attention load can be displayed in three stages on the three segment display portions 13a, so that the operator can keep the engine load close to the appropriate load among the attention loads. It is possible to determine whether or not the engine load is close to an excessive load, and for example, when the operator knows that the engine load is close to the appropriate load among the attention loads, the engine load is reduced. It is possible to avoid excessive reduction by performing a process that reduces a little, and if it is found that the engine load is close to an excessive load among caution loads, it is appropriate to perform a process that greatly reduces the engine load. Pay attention to the load from the appropriate load. As the process for reducing the engine load, specifically, a process for reducing the work speed in the threshing unit 2, for example, a process for reducing the work speed by operating the main transmission lever 7 to the deceleration side, for example, Processing such as adjusting the target processing amount on the swing sorting plate 54 slightly is executed.

  Incidentally, the engine speed reduction amount corresponding to the change in one stage until the next segment display unit 13a lights up in the attention load display unit 13B is about 10 rpm, and the next segment display unit in the appropriate load display unit 13A. It is set to a value smaller than the one-stage engine speed reduction amount (15 rpm) until 13a lights up. That is, the engine load display is such that the amount of change in the engine load for changing the lighting state of the segment display section 13a as the lighting section in one step is smaller in the caution load display section 13B than in the appropriate load display section 13A. Is configured to do.

  If comprised in this way, in both the appropriate load display part 13A and the caution load display part 13B, by displaying in a state where the engine load is divided into a plurality of stages, how much the current engine load is. Can be displayed properly, but the display status changes more sensitively to changes in the engine load when the load is a caution than the appropriate load that does not require processing to reduce the engine load. Therefore, it is possible to accurately perform the processing when the engine load is reduced to change from the attention load to the appropriate load.

  In this combine, when the engine load is at or near the maximum value of the appropriate load range displayed on the appropriate load display unit 13A, specifically, when the load is at the load level “7” or “8”, The engine load corresponds to an engine load corresponding to a state in which the engine E is working most or close thereto, and the magnitude of the engine load at that time can be referred to as an appropriate work value. That is, the engine load corresponds to a state where the work amount of the engine E is the largest or a state close to it in a state where the engine E is not overloaded but is in an appropriate load.

  It is effective for efficient work to carry out the mowing work in a state where the magnitude of the engine load is at the appropriate value for the above work.For example, this is always due to the difference in the situation of the crop or the condition of the road surface. It is not always appropriate, for example, when there is a risk that the third loss or the like will increase, the threshing load as the work load is lightened, that is, the engine load corresponding to the load level “6” or less. In some cases, the engine load needs to be accurately displayed in accordance with the work situation. Therefore, the appropriate load display unit 13A has a higher number of stages than the number of stages in the caution load display unit 13B. It is configured to display in (8 steps).

  And the control part 28 performs the display process which displays various alerting | reporting information as mentioned above in the auxiliary | assistant display part C3 in the normal state in which the combine is operate | moving normally (step 5). In this display process, every time the mode changeover switch 80 is pushed, the plural information display state and the minority information display state are alternately switched.

  Specifically, in the multiple information display state, as shown in FIG. 10 (a), as the multiple types of notification information, the grain stored in the Glen tank 3 (in the figure, expressed as “fir”). ), The amount of the sorting processed product on the swing sorting plate 54 detected by the sheave sensor S8 (denoted as “sheave” in the figure), and the cooling water in the engine E detected by the water temperature sensor S7. Each information of the temperature (denoted as “water temperature” in the figure) is displayed. In addition to the information, the left and right turn signal displays 74, the hour meter 75 indicating the combined operation time of the combine, the charge alarm display 76 indicating that the battery charge is low, and the oil alarm display 77 indicating the oil abnormality Are also displayed side by side.

  Further, in the state of switching to the minority information display state, every time the display changeover switch 81 is pushed, the selected processed product amount, the grain storage amount, and the temperature of the cooling water, as shown in FIG. One of the pieces of information is enlarged and displayed in a state where display contents are sequentially switched in a preset order.

  The minority information display state is not limited to a configuration in which any one of the plurality of pieces of notification information is displayed in an enlarged state, but as shown in FIG. The plurality of notifications, such as a state in which the water temperature) and the amount of grain storage (fir) are displayed side by side, a state in which the amount of processed material (sieve) on the swing sorting plate 54 and the amount of grain storage (fir) are displayed side by side, etc. It is good also as a structure which switches in the order set beforehand, every time the display switch 81 is operated in the state which displays two alerting | reporting information of information.

  Then, in an abnormal state where the combine is abnormal, the control unit 28 causes all of the 13 segment display units 13a in the engine load indicator 13 to blink (step 6). The abnormal state here is a case where an abnormality that makes it difficult to continue the cutting operation has occurred in any part of the combine. For example, an exhaust wall clogging detection switch There is an abnormal discharge clogging or the like in which the exhaust straw is clogged in the exhaust straw cutter unit 64 when S15 is turned on. In addition to this waste straw clogging, there are abnormalities such as clogging of the harvested cereal meal in the reaping unit 1 and overheating of the engine E.

  Moreover, the control part 28 respond | corresponds to the said abnormality instead of several types of alerting | reporting information, such as above-mentioned stored grain amount, the amount of sorting processed materials, and water temperature, in the abnormal state where the abnormality has generate | occur | produced in the combine. Message information is displayed on the auxiliary display C3 (step 7). When an abnormality such as the above-described exhaust straw is clogged, it has occurred at that time, for example, as shown in FIG. 10B, instead of a plurality of types of notification information as shown in FIG. Message information for responding to the error, such as “The waste straw cutter is clogged. Remove the straw.” Is displayed.

  In this embodiment, the map data shown in Table 1 is illustrated with the engine rotational speed reduction amount and the engine load magnitude associated with each other. However, the map data shown in Table 1 is an example, and the present invention Is not limited to such numerical values, and may be implemented with appropriate changes.

[Another embodiment]
Next, another embodiment will be described.

( 1 ) In the above embodiment, the engine load display means sequentially increases the number of the ones that are lit and displayed from the first one located at the end in the counterclockwise direction among the plurality of segment display portions as the lighting portions. In other words, as the load increases, the segment display unit closer to the maximum load display position is switched from the unlit state to the lit state, and the position of the segment display unit to be lit is set as the load display setting path. In the case of moving along, the configuration is shown in which all the segment display units located on the minimum load display position side of the segment display unit to be in the lighting state are maintained in the lighting state. A configuration may be adopted in which all the segment display units located closer to the minimum load display position than the segment display unit to be in a state are switched to the unlit state. In other words, the engine load may be displayed in a form in which only one segment display section of the plurality of segment display sections is turned on.

( 2 ) In the above embodiment, the appropriate load display unit 13A is configured to include more segment display units than the number of segment display units in the caution load display unit 13B, and the overload display unit 13C includes the caution load display unit 13C. The load display unit 13B has been configured to include a smaller number of segment display units than the number of segment display units. However, the present invention is not limited to such a configuration, and the appropriate load display unit 13A and the overload display unit are included. 13C may be configured to include the same number of segment display units as the number of segment display units in the attention load display unit 13B. Further, the caution load display unit 13B may include a plurality of segment display units, and the appropriate load display unit 13A and the overload display unit 13C may be configured by one segment display unit.

( 3 ) In the above embodiment, the engine load display means is exemplified by a configuration in which the segment display sections as a plurality of lighting sections that are switched between the lighting state and the unlighting state are arranged, but instead of such a configuration , a configuration of arranging a plurality of lighting sections switched off state lit state, does not constitute the segment display unit as in the above embodiment, a plurality arranging structure at intervals the display lamp round, its You may implement in various forms, such as the form which switches a round display lamp to a lighting state and a light extinction state.

( 4 ) In the above embodiment, the engine load display means is configured to display all of the plurality of lighting parts in a blinking manner in an abnormal state where an abnormality has occurred in the combine. It is good also as a structure which does not perform blink display.

( 5 ) In the above embodiment, the auxiliary display unit displays message information for responding to the abnormality in place of the plurality of types of notification information in an abnormal state in which an abnormality has occurred in the combine. However, such message information may not be displayed.

( 6 ) In the above-described embodiment, the auxiliary display unit selects, as a plurality of types of notification information, the amount of sorting processed product (sieve) on the swing sorting plate, the amount of grain storage (fir) in the Glen tank, and the cooling of the engine The information on the water temperature (water temperature) and the like are displayed side by side, but the plurality of types of notification information are not limited to these illustrated notification information, and other various types of notification information are displayed. Also good.

Overall side view Configuration diagram of threshing unit Diagram showing power transmission system Front view of display unit Diagram showing the configuration of the engine load indicator Diagram showing the configuration of the engine load indicator The figure which shows the structure of an auxiliary transmission display part. The figure which shows the structure of a cutting shift display part Control block diagram Flow chart of control operation The figure which shows the display state of an auxiliary display part The figure which shows the display state of an auxiliary display part It shows to view the display state of the auxiliary display unit

12 Working speed display means
12a Indicator needle
12b Scale 13 Engine load display means 13A Appropriate load display section 13B Caution load display section 13C Overload display section 13a Lighting section
30 Traveling device
C display unit C1 main display unit C2 sub display unit C3 auxiliary display unit Q1 working speed display setting route Q2 load display setting route

Claims (8)

Work speed display means for displaying the vehicle speed obtained from the rotational speed of the traveling device in a form in which the work speed display instruction unit is moved along the work speed display setting path extending between the minimum speed display position and the maximum speed display position; an engine load display means for displaying the engine load obtained from the engine speed in the form to move the load display instruction section along the load display setting path extends between the minimum load display position and maximum load display position The vehicle speed obtained from the rotational speed of the traveling device and the engine load are simultaneously displayed,
The working speed display setting path is provided in a semicircular shape projecting upward, and the load display setting path is arranged in a substantially concentric circle on the outer periphery of the working speed display setting path. Provided,
The engine load display means is
Appropriate load display that indicates that the engine load is an appropriate load by arranging a plurality of lighting units that can be switched between a lighting state and a light-off state along the load display setting path. parts, the careful loading display the engine load indicates that a note load, with each are constituted of the excessive load display unit for displaying that the engine load is excessive load,
Each of the appropriate load display unit, the caution load display unit, and the overload display unit is lit and displayed in different colors so as to be identifiable, and from the minimum load display position to the maximum load display position. In the form of switching the lighting part closer to the maximum load display position from the non-lighting state to the lighting state as the engine load increases among the plurality of lighting parts arranged toward the It is configured to move along the load display setting route,
The combined load display device includes a plurality of lighting units, and is configured to display the engine load in a state of being divided into a plurality of stages. The appropriate load display unit is configured to include a number of lighting units equal to or greater than the number of lighting units in the attention load display unit,
The combine display device according to claim 1 , wherein the overload display unit includes a number of lighting units equal to or less than the number of lighting units in the attention load display unit . The said appropriate load display part is comprised including the number of lighting parts larger than the number which added the number of the lighting parts in the said attention load display part, and the number of the lighting parts in the said overload display part. Combine display device. The working speed display means is
An indicator needle as the operation speed display instruction portion that rotates with one end in the longitudinal direction as a rotation fulcrum, and the operation speed display setting path formed in a semicircular shape protruding upward on the rear panel of the indicator needle. The combine display device according to any one of claims 1 to 3, wherein the display device is configured to display the vehicle speed in a needle-type display form including a scale displayed along the scale . The outer shape is configured by a shape in which a part of the lower side of the circle is cut out along a straight string, and the engine load display means and the work speed display means are provided on the upper part thereof. The combine display device according to any one of claims 1 to 4, wherein the display unit is provided in a state in which the display unit is located in a central portion of a display unit provided on the front side of the driver seat . In a state of being arranged side by side on both the left and right sides of the main display portion, a part of the main display portion side of a circle whose outer shape is smaller than the outer diameter of the main display portion is along the outer shape of the main display portion. And a sub-display part configured with a shape cut out in an arc shape .
The display of the combine according to claim 5, wherein the left and right side sub display units are configured to display notification information other than the notification information displayed on the main display unit as notification information to be notified to the operator. apparatus. The combine display device according to claim 6, wherein the pair of sub-display units are configured to display an engine rotation speed and a fuel remaining amount as the notification information. An auxiliary display is provided at the bottom of the main display,
The auxiliary display unit is configured as an image display type, and displays a plurality of types of notification information other than the notification information displayed on the upper part of the main display unit and the notification information displayed on the sub display unit. The combine display device according to any one of claims 5 to 7, wherein the combine display device is configured to perform.

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