Display device and work vehicle

Abstract

To provide a technology which enables improvement of operability of operation related to automatic traveling.SOLUTION: An exemplary display device is provided in a work vehicle and includes: a display part having a display screen which displays information related to automatic traveling of the work vehicle; and an operation part connected to the display part and having an operation member which enables operation related to the automatic traveling.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a display device and a work vehicle. [Background technology]

[0002] Patent Document 1 discloses a work vehicle that includes a steering wheel and a steering shaft that rotatably supports the steering wheel, and that can travel by automatically steering the steering wheel. The work vehicle also includes a display device that is disposed in front of the steering shaft. The work vehicle also includes a plurality of switches that are disposed around the steering shaft and enable operations related to the automatic steering. The plurality of switches includes a switch provided on a panel cover and a switch provided on a column cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2021-151867 Summary of the Invention [Problem to be solved by the invention]

[0004] If a display device is provided in front of the steering wheel, the display screen may be difficult to see depending on, for example, the angle of the steering wheel, the driver's posture, or the driver's physique. That is, there is a concern that it may be difficult to operate the device while looking at the display screen. Furthermore, in a configuration in which switches that enable operations related to automatic steering are provided on a panel cover or column cover, there is a concern that the positions of multiple switches related to automatic steering are dispersed, making it difficult to understand operations related to automatic steering.

[0005] In view of the above, an object of the present invention is to provide a technology that can improve the operability of operations related to automatic driving. [Means for solving the problem]

[0006] An exemplary display device of the present invention is a display device provided on a work vehicle, and includes a display unit having a display screen that displays information related to the automatic driving of the work vehicle, and an operation unit connected to the display unit and having operating members that enable operations related to the automatic driving.

[0007] Moreover, an exemplary work vehicle of the present invention is equipped with a display device having the above-described configuration. [Effects of the Invention]

[0008] According to the exemplary embodiment of the present invention, the operability of operations related to automatic driving can be improved. [Brief explanation of the drawings]

[0009] [Figure 1] A side view showing the general configuration of a tractor [Figure 2] FIG. 1 is a plan view showing the general configuration of a tractor. [Figure 3] Block diagram showing the tractor configuration [Figure 4A] A diagram to explain how to set the reference line [Figure 4B] FIG. 10 is a diagram illustrating a first modified example of a method for setting a reference line. [Figure 4C] FIG. 10 is a diagram illustrating a second modified example of a method for setting a reference line. [Figure 5] FIG. 1 is a front view showing a schematic configuration of a display device; [Figure 6] FIG. 1 is a side view showing a schematic configuration of a display device; [Figure 7] FIG. 1 is a perspective view showing a schematic configuration of a display device with a display unit cover removed; [Figure 8] Schematic diagram for explaining the configuration of the monitor operation unit [Figure 9] FIG. 1 is an enlarged schematic plan view of the driving section and its surroundings of the tractor. [Figure 10] Schematic side view showing an enlarged view of the driving section and its surroundings of the tractor. [Figure 11]FIG. 1 is a schematic perspective view showing a mounting structure of a display device to a tractor. [Figure 12A] FIG. 1 is a schematic perspective view showing the relationship between a display device and a part of a support member; [Figure 12B] FIG. 1 is a schematic perspective view showing the relationship between a display device and a part of a support member; [Figure 13] A perspective view showing the general configuration of a cabin-type tractor. DETAILED DESCRIPTION OF THE INVENTION

[0010] An embodiment of the present invention will be described with reference to the drawings. In this embodiment, a tractor will be used as an example of a work vehicle. However, the work vehicle may be any work vehicle other than a tractor, such as a harvester, a rice transplanter, a combine harvester, civil engineering or construction equipment, or a snowplow.

[0011] In addition, directions are defined as follows in this specification. First, the direction in which a tractor serving as a work vehicle travels during work is defined as "forward," and the opposite direction is defined as "rearward." Furthermore, the right side of the tractor's direction of travel is defined as right, and the left side is defined as left. The direction perpendicular to the front-to-back and left-to-right directions of the tractor is defined as up-to-down. In this case, the direction of gravity is defined as down, and the opposite side is defined as up. Furthermore, the plane perpendicular to the up-to-down direction is defined as the horizontal plane, and the direction along the horizontal plane is defined as the horizontal direction.

[0012] Furthermore, the orientation of the display device provided on the work vehicle can be changed on the work vehicle, as will be described later. When describing the display device alone, directions are defined according to the XYZ coordinate axes shown in Figures 5 and 6. The direction along the X axis is the X direction, the direction along the Y axis is the Y direction, and the direction along the Z axis is the Z direction. The Z direction coincides with the above-mentioned up-and-down direction. The X direction and Y direction are directions along a horizontal plane and are perpendicular to each other. The X direction can be said to be the width direction of the display device, and the Y direction can be said to be the depth direction of the display device. In some cases, the X direction may be the left-right direction, and the Y direction may be the front-to-back direction.

[0013] The above directions are names used merely for the purpose of explanation, and are not intended to limit the actual positional relationships and directions.

[0014] <1. Overview of the work vehicle> Fig. 1 is a side view showing the general configuration of a tractor 1 according to this embodiment. Fig. 2 is a plan view showing the general configuration of the tractor 1 according to this embodiment. As shown in Fig. 1, the tractor 1 includes a body 2, an engine 3, and a transmission case 4.

[0015] As shown in Figures 1 and 2, a pair of left and right front wheels 5 are arranged at the front of the vehicle body 2. A pair of left and right rear wheels 6 are arranged at the rear of the vehicle body 2. The vehicle body 2 can travel using the front wheels 5 and rear wheels 6. In other words, the tractor 1 of this embodiment is a wheel tractor. However, the tractor 1 may also be a crawler tractor.

[0016] The engine 3 is disposed at the front of the vehicle body 2 and is covered by a hood 7. The engine 3 is the driving source of the tractor 1. In this embodiment, the engine 3 is a diesel engine. However, the engine 3 may also be a gasoline engine. Furthermore, the driving source of the tractor 1 may be another driving source such as an electric motor instead of an engine.

[0017] The transmission case 4 is disposed behind the engine 3 and below the driver's section 8. A power transmission device (not shown) is disposed inside the transmission case 4. The rotational power of the engine 3 is transmitted to at least one of the front wheels 5 and the rear wheels 6 via the power transmission device inside the transmission case 4.

[0018] The driving unit 8 is provided behind the engine 3 on the vehicle body 2. The driving unit 8 is the part where the driver (operator) sits. The driving unit 8 includes a driver's seat 9 and a steering operation unit 10. That is, the tractor 1 is equipped with the driver's seat 9 and the steering operation unit 10. The driver's seat 9 is where the driver sits. The steering operation unit 10 is arranged in front of the driver's seat 9. More specifically, the steering operation unit 10 is a steering wheel that is operated by the driver sitting in the driver's seat 9. The steering operation unit 10 is rotatably supported by a steering shaft (not shown) arranged in a steering column 11. The direction of the front wheels 5 can be changed by rotating the steering operation unit 10.

[0019] The driving unit 8 is also provided with, for example, an operating lever 12 and pedals 13 operated by the driver, and a front panel 14 on which a meter indicating the speed of the tractor 1 and the like are arranged. The operating levers 12 may include multiple types of levers, such as a main speed change lever, a sub speed change lever, or a work lever. The pedals 13 may also include multiple types of pedals, such as an accelerator pedal and a brake pedal.

[0020] In this embodiment, a rope frame 15 is provided behind the driver's seat 9. The rope frame 15 can protect the driver in the event of the tractor 1 tipping over. Note that the tractor 1 may not be a rope type in which the rope frame 15 is provided, but may be a cabin type in which the driver's seat 9 is covered with a cabin.

[0021] A work implement coupling section 16, which is configured using a three-point linkage or the like, is provided at the rear of the vehicle body 2. A work implement can be attached to the work implement coupling section 16. The work implement may be, for example, a tiller, plow, fertilizer applicator, pesticide sprayer, harvester, or reaper. A lifting device (not shown) having a hydraulic device such as a lifting cylinder is also provided at the rear of the vehicle body 2. The lifting device raises and lowers the work implement coupling section 16, thereby raising and lowering the work implement. Power generated by the engine 3 can be transmitted to the towed work implement via the transmission case 4 and a power take-off shaft (PTO shaft; not shown) located at the rear of the vehicle body 2.

[0022] FIG. 3 is a block diagram showing the configuration of the tractor 1 according to this embodiment. As shown in FIG. 3, the tractor 1 includes a control unit 50. The control unit 50 is, for example, a computer including an arithmetic unit, an input / output unit, and a storage unit 51. The arithmetic unit is, for example, a processor or a microprocessor. The storage unit 51 is a main storage device such as a read-only memory (ROM) and a random access memory (RAM). The storage unit 51 may further include an auxiliary storage device such as an HDD (hard disk drive) or an SSD (solid state drive). Various programs, data, etc. are stored in the storage unit 51. The arithmetic unit reads and executes the various programs from the storage unit 51.

[0023] The above hardware and software can cooperate to cause the control unit 50 to operate as the automatic driving management unit 52, the driving control unit 53, and the work machine control unit 54. The control unit 50 may be a single piece of hardware, or may be composed of multiple pieces of hardware that can communicate with each other. That is, the automatic driving management unit 52, the driving control unit 53, and the work machine control unit 54 may be composed of a single control device, or may be composed of multiple control devices. For example, the automatic driving management unit 52 may be composed of a first control device, the driving control unit 53 may be composed of a second control device, and the work machine control unit 54 may be composed of a third control device.

[0024] As can be seen from the inclusion of the automatic driving management unit 52, the tractor 1 is provided with the capability of automatic driving. Here, automatic driving means that the control unit 50 provided in the tractor 1 controls devices related to driving, and at least steering is performed autonomously so as to follow a predetermined route. Automatic driving may also be configured so that, in addition to steering, at least one of the vehicle speed and the work performed by the work equipment is performed autonomously. In this embodiment, automatic driving autonomously steers the tractor 1 along a predetermined route. In other words, the tractor 1 is provided with the capability of automatic steering driving.

[0025] The control unit 50 is connected to the position acquisition unit 18, the inertial measurement unit 20, the display unit 61, and the operation unit 62.

[0026] The position acquisition unit 18 acquires the position of the tractor 1 as, for example, latitude and longitude information using a positioning signal received by the positioning antenna 19 from a positioning satellite. The position acquisition unit 18 outputs the position information of the tractor 1 to the control unit 50. For example, the position acquisition unit 18 may receive a positioning signal from a reference station (not shown) using an appropriate method and then perform positioning using a known RTK-GNSS (Real Time Kinematic GNSS) method. Alternatively, for example, the position acquisition unit 18 may perform positioning using a DGNSS (Differential GNSS) method. In this embodiment, the positioning antenna 19 is attached to the ROPS frame 15. The attachment position of the positioning antenna 19 may be changed as appropriate.

[0027] The inertial measurement unit 20 includes a three-axis angular velocity sensor and a three-directional acceleration sensor. The inertial measurement unit 20 outputs measured information to the control unit 50. The provision of the inertial measurement unit 20 makes it possible to measure inertial information such as the yaw angle, pitch angle, and roll angle of the vehicle body 2.

[0028] The display unit 61 displays information as appropriate in response to commands from the control unit 50. In this embodiment, the display unit 61 displays information related to the automatic traveling of the tractor 1. Details of the display unit 61 will be described later.

[0029] The operation unit 62 is operated by a driver sitting in the driver's seat 9. In this embodiment, the operation unit 62 is provided so that the driver can perform operations related to the automatic driving of the tractor 1. Commands given by the driver using the operation unit 62 are input to the control unit 50. Details of the operation unit 62 will be described later.

[0030] The automatic driving management unit 52 performs management related to automatic driving. For example, the automatic driving management unit 52 performs processing to start and end automatic driving in response to a command from the driver using the operation unit 62. The automatic driving management unit 52 also determines the position and orientation of the body 2 of the tractor 1 based on information obtained from the position acquisition unit 18 and the inertial measurement unit 20. The automatic driving management unit 52 also outputs control commands related to automatic driving in response to the relationship between the determined body position and a predetermined route for automatic driving, for example.

[0031] The travel control unit 53 controls the travel system of the tractor 1. For example, in response to a control command from the automatic travel management unit 52, the travel control unit 53 controls an automatic steering mechanism (not shown) so that the body 2 of the tractor 1 travels along a predetermined route. The automatic steering mechanism automatically rotates the steering shaft disposed in the steering column 11 described above, and automatically changes the direction of the front wheels 5. The automatic steering mechanism includes, for example, a steering motor and a power transmission unit constituted by a gear mechanism or the like. The operation of the steering motor is controlled according to the position of the body. Since the operation of the steering motor is transmitted to the steering shaft via the power transmission unit, the steering direction of the front wheels 5 can be controlled by controlling the steering motor.

[0032] The work implement control unit 54 controls the work system of the tractor 1. The work implement control unit 54 controls the elevation of the work implement coupling unit 16 in response to, for example, the operation of the operating lever 12 provided on the driving unit 8, commands from the automatic driving management unit 52, etc.

[0033] Here, an overview of the automatic traveling (automatic steering traveling) performed by the tractor 1 of this embodiment will be described. When performing automatic traveling, first, a reference line L is set. Fig. 4A is a diagram for explaining a method for setting the reference line L.

[0034] When setting the reference line L, first, the tractor 1 is moved to an appropriate position in the field (point A in the figure), and point A is registered. Point A is registered by a registration command from the driver. The vehicle body position obtained by the position acquisition unit 18 at the time the command to register point A is issued is registered as the position of point A.

[0035] Once point A is registered, the driver manually drives the tractor 1 in a straight line to a predetermined position (point B in the figure). Then, when the tractor 1 reaches the predetermined position, point B is registered. Point B is registered in response to a registration command from the driver. The vehicle body position obtained by the position acquisition unit 18 at the time the command to register point B is issued is registered as the position of point B. Once points A and B are registered, a straight line passing through points A and B is set as the reference line L.

[0036] Once the reference line L is set, lines parallel to the reference line L are generated at predetermined intervals as automatic driving lines. During automatic driving (automatic steering driving), steering control of the traveling direction of the tractor 1 is performed so that the automatic driving line matches the vehicle body position acquired by the position acquisition unit 18.

[0037] The method for setting the reference line L may be a method other than the method shown in Fig. 4A, for example, the method shown in Fig. 4B or 4C. Fig. 4B is a diagram for explaining a first modified example of the method for setting the reference line L. Fig. 4C is a diagram for explaining a second modified example of the method for setting the reference line L.

[0038] In the method shown in Fig. 4B, similar to the method shown in Fig. 4A, the tractor 1 is moved to an appropriate location in the field (point A in the figure) and point A is registered. When point A is registered, a reference line L is automatically set based on the orientation of the vehicle body 2 at that time (the orientation indicated by the dashed arrow in Fig. 4B). The orientation of the vehicle body 2 can be obtained from information from the inertial measurement unit 20.

[0039] In the method shown in FIG. 4C , similar to the method shown in FIG. 4A , the tractor 1 is moved to an appropriate location in the field (point A in the figure), and point A is registered. Once point A is registered, a reference line L is automatically set in accordance with the set azimuth angle θ. In the example shown in FIG. 4C , the two-dot chain line DL indicates the north direction as seen from the vehicle body 2. The dashed arrow in FIG. 4C indicates the direction of the set azimuth angle. The azimuth angle is defined, for example, with north as 0° and the clockwise direction as positive. The azimuth angle θ is set, for example, by the driver.

[0040] <2.Display device> [2-1. Display Device Configuration] As shown in Figures 1 to 3, the tractor 1 is equipped with a display device 60. As shown in Figure 3, the display device 60 is equipped with a display unit 61 and an operation unit 62. Figure 5 is a front view showing a schematic configuration of the display device 60 according to this embodiment. Figure 6 is a side view showing a schematic configuration of the display device 60 according to this embodiment.

[0041] The display unit 61 has a display screen 611 that displays information related to the automatic driving of the tractor 1. That is, the display device 60 displays information related to the automatic driving. The display screen 611 can be configured using, for example, a liquid crystal panel or an organic EL (Electroluminescence) panel. In this embodiment, the display unit 61 has a roughly rectangular parallelepiped shape, and the display screen 611 has a rectangular shape. However, the shapes of the display unit 61 and the display screen 611 may be other shapes.

[0042] The operation unit 62 is connected to the display unit 61. The operation unit 62 has an operation member 621 that enables operations related to the automatic driving of the tractor 1. In other words, the display device 60 of this embodiment has an integrated unit structure in which the display unit 61 that displays information related to the automatic driving and the operation unit 62 that performs operations related to the automatic driving are integrated into one. The display device 60 can also be described as an operation display device.

[0043] The display device 60, which aggregates parts related to the operation of autonomous driving, can be arranged independently from other operating parts, making it possible to intuitively understand operations related to autonomous driving. That is, according to this embodiment, the operability of operations related to autonomous driving can be improved. Because the display unit 61 and the operating unit 62 are connected and arranged nearby, during autonomous driving, the driver can easily operate the operating unit 62 while viewing the display screen 611 that displays information related to autonomous driving. Note that the operating unit 62 and the display unit 61 may be separate. Furthermore, operating members having the same functions as the operating members provided on the operating unit 62 may be provided in other locations. Such other locations may be, for example, the steering operation unit 10, the steering column 11, or the operating lever 12 arranged next to the driver's seat 9. Furthermore, each operating member may be provided in the above-mentioned other locations without providing the operating unit 62. In this configuration, the display unit 61 may be located on one side of the steering operation unit 10 in the left-right direction, or in front of the steering column 11. The front side of the steering column 11 may be, for example, the upper part of the front panel 14 .

[0044] 5 and 6, in this embodiment, the operation unit 62 is disposed on the -Z side with respect to the display unit 61. In other words, the operation unit 62 is disposed below the display unit 61. By disposing the operation unit 62 below the display unit 61, it is possible to reduce the possibility that a body part such as a hand will get in the way during operation, making it difficult to see the display screen 611, thereby improving operability.

[0045] As shown in FIG. 6, the display device 60 further includes a display unit cover 63. The display unit cover 63 is, for example, a resin cover. The display unit cover 63 is box-shaped and open on the -Y side. The display unit cover 63 covers the +Y side of the display unit 61, which is opposite to the -Y side on which the display screen 611 is located. In other words, the display unit cover 63 covers the back surface of the display unit 61. The display unit cover 63 is provided detachably. The display unit cover 63 is provided so as not to protrude from the outermost periphery of the display unit 61, thereby giving the display device 60 a compact shape.

[0046] FIG. 7 is a perspective view showing a schematic configuration of the display device 60 with the display unit cover 63 removed. FIG. 7 is a view of the display device 60 as seen from the rear side. As shown in FIG. 7, a connecting frame 64 is attached to the +Y side surface (rear surface) of the display unit 61. In this embodiment, the connecting frame 64 is fixed to the display unit 61 using bolts 65. The -Z side (lower) end of the connecting frame 64 extends into the interior of the operation unit 62 and is attached to the operation unit 62. In this embodiment, the connecting frame 64 is fixed using tapping screws by aligning through holes (not shown) provided in the frame with bosses (not shown) provided on the inside of the operation unit 62 (more specifically, the second housing 623 described later). Note that the connecting frame 64 may be fixed to the operation unit 62 using a combination of through holes (not shown) provided in the frame and pins (not shown) provided inside the operation unit 62. That is, the display unit 61 and the operation unit 62 are connected by the connecting frame 64. Specifically, the display unit 61 and the operation unit 62 are connected by a connecting frame 64 so as to be immovable relative to each other. However, the display unit 61 and the operation unit 62 may be connected so as to be movable relative to each other.

[0047] 7, a connector unit 613 for connecting electrical wiring (not shown) is provided on the +Y side surface (rear surface) of display unit 61. A fuse 67 for display unit 61 is attached to the +Y side surface (rear surface) of connecting frame 64. Display unit cover 63 covers connecting frame 64, connector unit 613, fuse 67, and electrical wiring (not shown) connected to connector unit 613 and fuse 67.

[0048] In this embodiment, the display unit cover 63 is detachably attached to the connecting frame 64 using push rivets 68 (see FIG. 6). This allows the display unit cover 63 to be easily removed to inspect or replace the fuse 67. The display unit cover 63 may be fixed to the connecting frame 64 using fixing means other than push rivets, such as screws. The display unit cover 63 may also be detachably attached to the display unit 61 instead of the connecting frame 64.

[0049] In this embodiment, the operation unit 62 has a box shape extending in the X direction. As shown in FIG. 6, a surface 62a on which an operation member 621 of the operation unit 62 is provided is inclined with respect to the display screen 611. Hereinafter, the surface 62a will be referred to as the operation member arrangement surface 62a. Specifically, the display screen 611 is slightly inclined with respect to the Z direction, with the +Z side being the +Y side and the -Z side being the -Y side. The operation member arrangement surface 62a is also inclined in the same direction as the display screen 611 with respect to the Z direction, but is inclined more than the display screen 611. As a result, the operation member arrangement surface 62a is inclined with respect to the display screen 611. The operation member arrangement surface 62a is inclined toward the display screen 611.

[0050] With this configuration, the display screen 611 of the tractor 1 can be tilted slightly in the vertical direction to allow the driver to easily view the display screen 611. When the display screen 611 is positioned in this manner, the operation unit 62 can be positioned so that the operation member placement surface 62a faces upward. This improves the operability of the operation unit 62.

[0051] Of a first operating member that enables switching automatic driving on and off and a second operating member that enables a different operation from the first operating member, it is preferable that the operating member 621 of the operating unit 62 includes at least the first operating member. By configuring the operating unit 62, which is integrated with the display unit 61, to have a switch for turning automatic driving on and off, it is possible to make it easier for the driver to start and stop automatic driving. However, the operating member 621 may not include the first operating member.

[0052] In this embodiment, as a more preferred embodiment, the operating member 621 includes a first operating member 621a and a second operating member 621b, as shown in Figures 5 and 6. Note that the operating member 621 may include at least one other operating member in addition to the first operating member 621a and the second operating member 621b.

[0053] In this embodiment, the first operating member 621a and the second operating member 621b are arranged side by side in the X direction. Furthermore, the first operating member 621a is arranged on the -X side, and the second operating member 621b is arranged on the +X side. However, the arrangement of the first operating member 621a and the second operating member 621b is not limited to this and may be changed as appropriate. For example, the first operating member 621a and the second operating member 621b may be arranged in a direction along the operating member arrangement surface 62a and in a direction perpendicular to the X direction. Furthermore, for example, the first operating member 621a may be arranged on the +X side, and the second operating member 621b may be arranged on the -X side.

[0054] In this embodiment, the first operating member 621a is a push-type operating button. By pressing the operating button 621a, automatic driving can be switched on and off. For example, when automatic driving is in the off state, pressing the operating button 621a turns the automatic driving on. When automatic driving is in the on state, pressing the operating button 621a turns the automatic driving off.

[0055] Note that a mark indicating the function of the operation button 621a may be printed on the surface of the operation button. By printing and displaying the function on the surface of the button, the driver can immediately determine the function of the operation button 621a. Also, by configuring the function to be printed on the surface of the button, it is possible to reduce the number of steps required, for example, by eliminating the need to attach a nameplate. Also, the first operation member 621a is not limited to a push-type operation button, and may be, for example, an operation lever, a rotary operation dial, or the like.

[0056] In this embodiment, the second operating member 621b is a route correction operating member that enables correction of the route of automatic driving. The route correction operating member is used, for example, when the driver determines that the route of automatic driving differs from the expected route after automatic driving has started. The route correction operating member is also used, for example, when a position shift occurs in which the vehicle position acquired by the position acquisition unit 18 during automatic driving deviates from the original position. By operating the route correction operating member, the position of the automatic driving line described above can be shifted, and the route on which the tractor 1 automatically drives can be corrected to the original route.

[0057] In this embodiment, the second operating member 621b configured as a path correction operating member is a seesaw switch. By pressing the +X side of the seesaw switch 621b, the position of the automatic driving line (not shown) displayed on the display screen 611 can be shifted to the +X side. In addition, by pressing the -X side of the seesaw switch 621b, the position of the automatic driving line displayed on the display screen 611 can be shifted to the -X side.

[0058] In this embodiment, a mark 69 (specifically, an arrow) indicating the function of the second operating member 621b is provided on the operating member placement surface 62a of the operating unit 62. This makes it easier for the driver to intuitively understand how to operate the second operating member 621b. The mark 69 may be formed by, for example, hot stamping the operating member placement surface 62a. The second operating member 621b may have a configuration other than a seesaw switch, and may be, for example, an operating lever or an operating dial.

[0059] In this embodiment, the operation unit 62 includes a first housing 622 and a second housing 623. The first housing 622 is disposed on the -Z side (lower side) than the second housing 623. The first housing 622 is box-shaped with an opening on the +Z side. The second housing 623 is box-shaped with an opening on the -Z side. The second housing 623 has the above-mentioned operation member placement surface 62a on the +Z side. In this embodiment, the first housing 622 and the second housing 623 are made of resin, for example.

[0060] The operation unit 62 is formed by arranging a first operation member 621a and a second operation member 621b in a second housing 623 and fitting the first housing 622 to the second housing 623 from the -Z side. The first operation member 621a and the second operation member 621b are inserted from the +Z side into openings (not shown) provided in an operation member placement surface 62a of the second housing 623. Parts of the first operation member 621a and the second operation member 621b protrude outward from the operation member placement surface 62a, and the remaining parts are disposed inside the operation unit 62. As shown in FIG. 7, a wiring opening 62d is provided in the +Y side surface (rear surface) of the first housing 622. Electrical wiring (not shown) is electrically connected to the electrical circuitry of the first operation member 621a and the second operation member 621b through the wiring opening 62d.

[0061] In this embodiment, first housing 622 and second housing 623 are fastened together using snap fit mechanisms 624 provided at the +X side end and the -X side end, respectively. Although screws or the like may be used instead of snap fit mechanism 624, using snap fit mechanism 624 can reduce the number of assembly steps.

[0062] Furthermore, in this embodiment, operation unit 62 has a shape that tapers toward the -Z side. In other words, operation unit 62 has a shape that tapers toward the bottom. Specifically, second housing 623 has a shape whose widths in the X and Y directions narrow toward the -Z side. As shown in FIG. 5, the -Z side portion of second housing 623 has a trapezoidal shape in which the side on the -Z side is shorter than the side on the +Z side in a front view. Furthermore, as shown in FIG. 6, the -Z side portion of second housing 623 has a trapezoidal shape in which the side on the -Z side is shorter than the side on the +Z side in a side view.

[0063] By tapering the -Z side (lower side) of the operating unit 62 in this way, the protrusion of the operating unit 62 can be reduced, making it easier to grip the operating unit 62. In other words, the operability of the operating unit 62 can be improved. This effect can be made more pronounced when a seesaw switch is used as the operating member, as in this embodiment.

[0064] 5, the display unit 61 has a monitor operation unit 612. The display screen 611 displays the contents of operations that can be performed using the monitor operation unit 612. In other words, the monitor operation unit 612 enables operations according to the display on the display screen 611. Operations can be performed according to the guidance displayed on the display screen 611 using the monitor operation unit 612.

[0065] In this embodiment, the monitor operation unit 612 allows, for example, the registration and deletion of the above-mentioned points A and B (see FIGS. 4A, 4B, and 4C). The monitor operation unit 612 also allows the setting conditions related to automatic driving to be changed. The monitor operation unit 612 also allows the selection of a registration method for points A and B. For example, it allows the selection of any one of the registration method shown in FIG. 4A, the registration method shown in FIG. 4B, and the registration method shown in FIG. 4C.

[0066] In this embodiment, as shown in Fig. 5, the monitor operation unit 612 is arranged on the -Z side (bottom side) of the display screen 611. The monitor operation unit 612 includes multiple operation buttons 612a to 612f. The operation buttons 612a to 612f are physical buttons that can be operated by pressing them. The multiple operation buttons 612a to 612f are aligned in a row in the X direction. The arrangement, shape, and type of the monitor operation unit 612 may be changed as appropriate.

[0067] Fig. 8 is a schematic diagram for explaining the configuration of monitor operation unit 612 of this embodiment. Fig. 8 is a diagram extracting the periphery of monitor operation unit 612 from Fig. 5. Fig. 8 is also a diagram assuming that the registration of points A and B described above has been completed and preparations for automatic driving have been completed. An image 6111 prompting the start of automatic steering driving (straight-line assist mode) is displayed on display screen 611. At the end of image 6111 on the -Z side, operation content images 6111a to 6111f indicating multiple operation contents that can be operated on monitor operation unit 612 are displayed lined up in a row in the X direction.

[0068] The first operation content image 6111a shows operation content that can be operated using the first operation button 612a. The second operation content image 6111b shows operation content that can be operated using the second operation button 612b. The third operation content image 6111c shows operation content that can be operated using the third operation button 612c. The fourth operation content image 6111d shows operation content that can be operated using the fourth operation button 612d. The fifth operation content image 6111e shows operation content that can be operated using the fifth operation button 612e. The sixth operation content image 6111f shows operation content that can be operated using the sixth operation button 612f.

[0069] That is, in this embodiment, the arrangement order in the X direction of the operation buttons 612a to 612f constituting the monitor operation unit 612 is the same as the arrangement order in the X direction of the operation content images 6111a to 6111f indicating the operation content that can be operated by the operation buttons 612a to 612f. The operation buttons 612a to 612f and the operation content images 6111a to 6111f indicating the operation content that can be operated by the operation buttons are arranged side by side in the Z direction (up and down). By arranging them in this manner, it is possible to easily grasp the operation content of the operation buttons 612a to 612f and make it easier to perform appropriate operations.

[0070] In this embodiment, the monitor operation unit 612 is configured with physical buttons, but this is merely an example. For example, the display screen 611 may be configured with a touch panel, and the monitor operation unit may be configured using the touch panel. In this case, the monitor operation unit may be realized as soft keys (software keys) displayed on the display screen 611. Operation content images showing operation content may themselves be used as soft keys.

[0071] [2-2. Modified Examples of Display Device Configuration] In the above, the second operation member 621b is configured as a path correction operation member, but this is merely an example.

[0072] (2-2-1. First Modified Example) The second operation member 621b may be a mode switching operation member that enables transition to an automatic driving mode in which operations related to automatic driving are enabled. In this modification, unless the mode switching operation member is used to switch to the automatic driving mode, it is not possible to operate the first operation member 621a or to perform settings related to automatic driving using the monitor operation unit 612 (for example, registering points A and B). Such a mode switching operation member is not essential, and if a mode switching operation member is provided, the second operation member 621b may be used as the mode switching operation member.

[0073] The second operating member 621b configured as a mode switching operating member may be a seesaw switch, but may also have other configurations, such as a push-type operating button, an operating lever, or an operating dial.

[0074] In this modified example, when the autonomous driving mode is entered by the mode switching operation member, the above-mentioned reference line L (see FIGS. 4A to 4C) may be set. Furthermore, when the reference line L is set and a predetermined condition is satisfied, autonomous driving can be started using the first operation member 621a. Furthermore, in response to the operation of the mode switching operation member, a notification process may be performed to notify the user that the operation has been performed and the state achieved by the operation. The notification process may be performed by, for example, a screen display or audio guidance. Such notification process when the operation member 621 is operated is not limited to this modified example and may be performed as appropriate in the above-described embodiment.

[0075] In addition, in this modified example, when the mode switching operation member is operated during automatic driving, the operation may be rejected or accepted. In the case where the operation of the mode switching operation member is accepted during automatic driving, for example, the operation of the mode switching operation member may be used to make an emergency stop or to switch from automatic driving to manual driving.

[0076] (2-2-2. Second Modified Example) The second operation member 621b may be a reference line setting operation member that enables setting of a reference line L used for generating a route for automatic driving. In the above-described embodiment, the reference line L is set using the monitor operation unit 612, but in this modified example, the reference line L is set using the second operation member 621b configured as a reference line setting operation member.

[0077] The second operating member 621b configured as the reference line setting operating member may be a seesaw switch, but may also have other configurations, such as a push-type operating button, an operating lever, or an operating dial. For example, when the reference line setting operating member is configured as an operating button, the reference line setting operating member may be configured to include an operating button for point A and an operating button for point B.

[0078] Furthermore, the second operating member 621b configured as the reference line setting operating member may be configured to have both the function of a push-type operating button and the function of an operating dial. In this case, when the reference line L is set using the method shown in FIG. 4A , point A is registered when the reference line setting operating member is pressed once, and point B is registered when the reference line setting operating member is pressed again after point A is registered. When the reference line L is set using the method shown in FIG. 4B , the reference line L may be automatically set according to the orientation of the vehicle body 2 at the time of pressing the reference line setting operating member once. When the reference line L is set using the method shown in FIG. 4C , the reference line L may be automatically set when the reference line operating member is pressed after the azimuth angle is set by rotating the reference line operating member. The azimuth angle may be set before or after the method shown in FIG. 4C is selected.

[0079] (2-2-3. Third Modification) The second operation member 621b may be a reference line setting mode selection operation member that enables selection of a reference line setting mode used when setting a reference line L used to generate a route for automated driving. Examples of the reference line setting modes include a first reference line setting mode in which the reference line L is set using the method shown in FIG. 4A described above, a second reference line setting mode in which the reference line L is set using the method shown in FIG. 4B described above, and a third reference line setting mode in which the reference line L is set using the method shown in FIG. 4C described above. The reference line setting mode selection operation member is used to select one of the first reference line setting mode, the second reference line setting mode, and the third reference line setting mode, for example.

[0080] The second operating member 621b configured as a reference line setting mode selection operating member may be a seesaw switch or the like, but may also have a configuration that functions both as a push button and as a dial, for example. When a reference line setting mode selection operating member with such a configuration is used, the reference line setting mode may be selected, for example, through the following first and second steps. The first step is a step of changing the selectable reference line setting modes on the display screen 611 by rotating the reference line setting mode selection operating member. The second step is a step of determining the reference line setting mode to be selected by pressing the reference line setting mode selection operating member while the desired reference line setting mode is displayed.

[0081] The reference line setting mode selection operation member may also function as the reference line setting operation member shown in Modification 2. In this case, the operation member may be used to first select a reference line setting mode, and then the reference line L may be set according to the method of the selected reference line setting mode.

[0082] (2-2-4. Fourth Modification) The second operating member 621b may be a registered reference line selection operating member that enables selection of a reference line L to be used from among reference lines L that are registered in advance as reference lines L used to generate an automated driving route. The second operating member 621b configured as a registered reference line selection operating member is not particularly limited, but may have a configuration that includes both a function as a push-type operating button and a function as an operating dial. An example of use of the registered reference line selection operating member in this configuration will be described below.

[0083] For example, a selection screen for selecting a registered reference line L is displayed on the display screen 611. This state may be realized by operating a registered reference line selection operation member, or may be realized by operating other operation means such as the monitor operation unit 612. The display of the registered reference line L on the display screen 611 may be configured to simply display the registered name, or may be configured to display an icon indicating the name of the registered reference line L together with a work screen that displays the work setting conditions, the reference line L, etc.

[0084] With the registered reference lines L (hereinafter sometimes referred to as registered reference lines) displayed on the display screen 611, the desired registered reference line may be selected by, for example, performing the following first and second steps. The first step is a step of changing the selectable registered reference lines on the display screen 611 by rotating the registered reference line selection operation member. The second step is a step of determining the registered reference line to be selected by pressing the registered reference line selection operation member while the desired registered reference line is displayed.

[0085] The registered reference line selection operation member may be configured to allow various settings for the work (for example, the type of work, the work width, etc.) Furthermore, notification processing such as a voice notification may be performed in response to switching of the settings.

[0086] [2-3. Arrangement and mounting structure of display device in tractor] Next, the arrangement and mounting structure of the display device 60 configured as above in the tractor 1 will be described in detail.

[0087] (2-3-1. Display device placement) Fig. 9 is a schematic plan view showing an enlarged view of the driving unit 8 and its periphery of the tractor 1 according to this embodiment. Fig. 10 is a schematic side view showing an enlarged view of the driving unit 8 and its periphery of the tractor 1 according to this embodiment.

[0088] As shown in FIG. 9 , the display device 60 is disposed on one side of the steering operation unit 10 in the left-right direction. This configuration can prevent the steering operation unit 10 from blocking the field of view or interfering with operation, thereby improving the visibility and operability of the display device 60. It can also make it easier to ensure visibility ahead of the driver's seat 9. In this embodiment, the display device 60 is disposed to the right of the steering operation unit 10. However, this is merely an example, and the display device 60 may also be disposed to the left of the steering operation unit 10.

[0089] The display device 60 is also arranged next to one side of the steering operation unit 10 in the left-right direction. In detail, as shown in Fig. 10, at least a part of the display device 60 is arranged at the same height as the steering operation unit 10. When the steering operation unit 10 and the display device 60 are arranged at such a height relationship, the driver operating the steering operation unit 10 can easily operate the display device 60. Furthermore, the display screen 611 of the display device 60 can be easily viewed by the driver sitting in the driver's seat 9.

[0090] 9 and 10, the display device 60 is disposed forward of the rear end 10a of the steering operation unit 10. This configuration reduces the possibility that the display device 60 will interfere with the driving operation of the tractor 1.

[0091] 9 and 10, the display device 60 is disposed in front of the armrest 21 disposed to the side of the driver's seat 9. Specifically, the armrest 21 is disposed on the right side of the driver's seat 9. At least a portion of the display device 60 is disposed at the same height as the armrest 21. With this configuration, the display device 60 can be disposed near a position where the driver's hand (the right hand in this embodiment) is likely to be placed, and the driver can easily operate the display device 60.

[0092] In this embodiment, more specifically, the operating lever 12 is disposed in front of the armrest 21. The operating lever 12 is, more specifically, a main speed change lever that adjusts the speed of the tractor 1. The display device 60 is disposed in front of the operating lever 12. At least a portion of the display device 60 is at the same height as the operating lever 12. This allows the driver to easily access the display device 60 while gripping the operating lever 12. As a result, the operability of the display device 60 can be improved.

[0093] In the present embodiment, as a preferred embodiment, the first operating member 621a of the display device 60 is disposed closer to the steering operation unit 10 than the second operating member 621b. However, the first operating member 621a may be disposed farther from the steering operation unit 10 than the second operating member 621b.

[0094] Specifically, since the display device 60 is disposed on the right side of the steering operation unit 10, the first operation member 621a is preferably disposed to the left of the second operation member 621b. When the display device 60 is disposed on the left side of the steering operation unit 10, the first operation member 621a is preferably disposed to the right of the second operation member 621b.

[0095] Because the first operating member 621a, which switches the automatic driving mode on and off, is located close to the driver, the driver can easily switch the automatic driving mode on and off. This reduces the possibility of the driver mistaking the switching operation for another operation. Furthermore, the second operating member 621b, which is located to the right of the first operating member 621a, can be operated by gripping the right side surface of the operating unit 62. In this embodiment, the second operating member 621b is a seesaw switch, and being able to operate it by gripping the right side surface of the operating unit 62 in this way improves operability. Note that, in this embodiment, as described above, the second operating member 621b configured as a seesaw switch can be used to perform an offset operation for the automatic driving route.

[0096] (2-3-2. Display device mounting structure) As shown in FIG. 10 , the driver's section 8 is provided with mudguards 22. More specifically, the mudguards 22 are provided at the front end of the driver's section 8. The mudguards 22 are mudguards, and in this embodiment are made of a transparent material so as not to obstruct forward visibility. The mudguards 22 may be, for example, acrylic plates. The mudguards 22 are provided at the left and right front ends of the driver's section 8.

[0097] The tractor 1 further includes a frame 23 (hereinafter sometimes referred to as a mudguard frame 23) that supports the mudguards 22. In this embodiment, the display device 60 is attached to the tractor 1 using the mudguard frame 23. In detail, the display device 60 is attached to the tractor 1 using the mudguard frame 23 that supports the right mudguard 22 of the left and right mudguards 22.

[0098] A support member 70 that supports the display device 60 is disposed in the driving section 8. Figure 11 is a schematic perspective view showing the mounting structure of the display device 60 to the tractor 1. The support member 70 that supports the display device 60 is attached to the frame 23 of the mudguard 22. That is, the display device 60 is attached to the mudguard frame 23 using the support member 70 that the tractor 1 has.

[0099] In this embodiment, the support member 70 has a support stay 71 and an arm member 72. The arm member 72 is supported by the support stay 71 and supports the display device 60. The support member 70 also has a first connecting portion 73 and a second connecting portion 74.

[0100] The support stay 71 is fixed to a frame that constitutes the driving section 8. More specifically, the support stay 71 is fixed to the mudguard frame 23. The support stay 71 may be made up of a single member, but in this embodiment, it is made up of multiple members. The support stay 71 includes a pipe section 711, a pipe section mounting frame 712, and a frame 713 with position adjustment holes.

[0101] The pipe section 711 is formed by, for example, bending and welding a round pipe, and has a first pipe section 711a, a second pipe section 711b, and a third pipe section 711c.

[0102] The first pipe section 711a extends vertically and is fixed to the pipe section mounting frame 712 by welding or the like.

[0103] One end of the second pipe section 711b is connected to the upper end of the first pipe section 711a, and the other end is attached to the mudguard frame 23. Specifically, the second pipe section 711b has two front and rear pipe sections 711b1, 711b2 extending in the front-rear direction, and a connecting pipe section 711b3 connecting the rear ends of the two front and rear pipe sections 711b1, 711b2. The other end of the second pipe section 711b is fixed to the mudguard frame 23 using a high nut (not shown) attached to the mudguard frame 23 by welding or the like. Specifically, the other end of the second pipe section 711b is attached to a lateral frame section 23a of the mudguard frame 23, which extends in the horizontal direction. Note that the lateral frame section 23a extends generally in the left-right direction, but in this embodiment, it is slightly inclined with respect to the left-right direction, as shown in FIG. 9, for example.

[0104] One end of the third pipe section 711c is attached by welding or the like to the connecting pipe section 711b3 that constitutes the second pipe section 711b. The third pipe section 711c extends downward and forward from the one end attached to the second pipe section 711b. The other end of the third pipe section 711c is fixed to the pipe section mounting frame 712 by welding or the like.

[0105] The pipe section mounting frame 712 is fixed to the mudguard frame 23 by screws or the like. More specifically, the pipe section mounting frame 712 is fixed to the vertical frame section 23b extending vertically of the mudguard frame 23. The upper end of the vertical frame section 23b is connected to the right end of the horizontal frame section 23a.

[0106] The frame with position adjustment holes 713 is formed by bending a metal plate and is attached to the pipe section 711 by welding or the like. Specifically, the frame with position adjustment holes 713 is attached to each portion of the first pipe section 711a and the second pipe section 711b. The frame with position adjustment holes 713 has a side wall section 713a that extends in the vertical direction. The upper part of the side wall section 713a protrudes upward beyond the pipe section 711, and six through holes 713b that penetrate horizontally are provided in this upper part. The six through holes 713b are arranged in a configuration where three through hole sets 713bG, each consisting of two through holes 713b lined up vertically, are lined up in the front-rear direction. The first connecting section 73 is attached to the frame with position adjustment holes 713 so that its position can be adjusted.

[0107] The support stay 71 configured as described above is supported by the horizontal frame portions 23a and vertical frame portions 23b of the mudguard frame 23, and is therefore able to firmly support the display device 60. This makes it possible to prevent the display device 60 from shaking due to vibrations when the tractor 1 is traveling. Furthermore, because the main portion of the support stay 71 is configured using pipes, it is possible to ensure strength and rigidity in a compact shape. Furthermore, the pipe portion 711 of the support stay 71 can be used as a handhold when getting on and off the tractor 1.

[0108] 12A and 12B are schematic perspective views showing the relationship between the display device 60 and a portion of the support member 70. The directions from which the object is viewed are different between FIG. 12A and FIG. 12B. FIG. 12A is a view from diagonally behind, and FIG. 12B is a view from diagonally ahead. The mounting structure of the display device 60 will be further described with reference to FIG. 11 as well as FIG. 12A and FIG. 12B.

[0109] The first connecting portion 73 has a first shaft portion 731 and a first shaft portion support frame 732. The first shaft portion 731 extends vertically. A front end portion of the arm member 72 is connected to the first shaft portion 731. The first shaft portion support frame 732 supports the first shaft portion 731 in a fixed state. The first shaft portion support frame 732 is formed by bending a metal plate. The first shaft portion support frame 732 has a side wall portion 732a that extends in the vertical direction. Four through holes 732b that penetrate horizontally are provided in the side wall portion 732a. The four through holes 732b are arranged in a front-to-back configuration, with two through hole sets 732bG, each consisting of two through holes 732b lined up vertically.

[0110] The first connecting portion 73 is fixed to the support stay 71 by aligning the four through holes 732b of the first shaft support frame 732 with four of the six through holes 713b of the frame with position adjustment holes 713 and screwing them in place. When fixing the first connecting portion 73 to the support stay 71, a first configuration can be selected, which uses the two through hole sets 713bG (front and middle) of the three through hole sets 713bG aligned in the front-to-rear direction of the frame with position adjustment holes 713, and a second configuration can be selected, which uses the two through hole sets 713bG (middle and rear). When the first configuration is selected, the display device 60 can be positioned further forward than when the second configuration is selected. Conversely, when the second configuration is selected, the display device 60 can be positioned further rearward than when the first configuration is selected.

[0111] The arm member 72 has a rod-shaped portion 721, a first cylindrical portion 722 disposed at the front end of the rod-shaped portion 721, and a second cylindrical portion 723 disposed at the rear end of the rod-shaped portion 721. The rod-shaped portion 721 is formed by bending a metal plate. The first cylindrical portion 722 and the second cylindrical portion 723 extend vertically. The first cylindrical portion 722 and the second cylindrical portion 723 are attached to the rod-shaped portion 721 by welding or the like.

[0112] The arm member 72 is connected to the first connecting portion 73 by inserting the first shaft portion 731 of the first connecting portion 73 into the first cylindrical portion 722. A friction structure is provided between the first cylindrical portion 722 and the first shaft portion 731, and the arm member 72 can be rotated relative to the first connecting portion 73 and stopped at any position. The friction structure may be configured to utilize, for example, a torque hinge. The second cylindrical portion 723 is used for connection to the second connecting portion 74.

[0113] The second connecting portion 74 includes a second shaft portion 741, a second shaft portion support frame 742, a third shaft portion 743, a third shaft portion support frame 744, and an apparatus-side mounting piece 745. The second shaft portion 741 extends vertically. The second shaft portion support frame 742 supports the second shaft portion 741 in a fixed state. The second shaft portion support frame 742 is formed by bending a metal plate. The second connecting portion 74 is connected to the arm member 72 by inserting the second shaft portion 741 into the second cylindrical portion 723 of the arm member 72. A friction structure is provided between the second cylindrical portion 723 and the second shaft portion 741, and the second connecting portion 74 can be rotated relative to the arm member 72 and stopped at any position. The friction structure may be configured to utilize, for example, a torque hinge.

[0114] The third shaft 743 extends horizontally. The third shaft support frame 744 supports the third shaft 743. The third shaft support frame 744 is formed by bending a metal plate. Specifically, the third shaft support frame 744 supports the third shaft 743 by a pair of side walls 744a, 744b that extend vertically and face each other. The third shaft support frame 744 is connected to the second shaft support frame 742 by welding or the like at a back wall 744c that connects the pair of side walls 744a, 744b. A screw hole 744d that penetrates horizontally is provided in one 744a of the pair of side walls 744a, 744b.

[0115] The device-side mounting piece 745 is formed by bending a metal plate. The device-side mounting piece 745 is fixed by screws or the like to the connecting frame 64 (see FIG. 7) that connects the display unit 61 and the operation unit 62 of the display device 60. The device-side mounting piece 745 has a pair of side walls 745a, 745b that extend in the vertical direction and face each other. The pair of side walls 745a, 745b of the device-side mounting piece 745 are placed outwardly on the pair of side walls 744a, 744b of the third shaft support frame 744 to support the third shaft 743. The third shaft 743 has a threaded portion that is combined with a nut 743a and fixed to the third shaft support frame 744 and the device-side mounting piece 745.

[0116] Furthermore, a long hole 745c penetrating horizontally is provided in one 745a of the pair of side wall portions 745a, 745b of the apparatus-side mounting piece 745. The long hole 745c is aligned with a screw hole 744d provided in the side wall portion 744a of the third shaft support frame 744. A screw (not shown) is fitted into the screw hole 744d and the long hole 745c, thereby fixing the third shaft support frame 744 and the apparatus-side mounting piece 745 to each other.

[0117] Note that by removing the screw from the screw hole 744d and loosening the screw of the third shaft portion 743, the display device 60 can rotate around the third shaft portion 743. That is, the display device 60 is provided rotatable around an axis extending horizontally relative to the arm member 72. This makes it possible to adjust the angle of the display screen 611 of the display device 60 relative to the horizontal plane. However, in this embodiment, the display device 60 can rotate around the third shaft portion 743 within a range where the screw hole 744d and the elongated hole 745c overlap each other.

[0118] The angle of the display device 60 relative to the horizontal plane may be adjusted at all times by using a torque hinge, not just when the screws are loosened. However, in this embodiment, the angle of the display device 60 relative to the horizontal plane can be adjusted only when the screws are loosened, so that the angle of the display device 60 is not easily changed by the force applied to the display device 60 by operating the operation unit 62.

[0119] As can be seen from the above, arm member 72 is provided to be rotatable about an axis extending vertically relative to support stay 71. More specifically, arm member 72 is provided to be rotatable about a first axis portion 731 relative to support stay 71. Furthermore, display device 60 is provided to be rotatable about an axis extending vertically relative to arm member 72. More specifically, display device 60 is provided to be rotatable about a second axis portion 741 relative to arm member 72. By employing these configurations, the driver can easily adjust the position and orientation of display device 60 to a location that is easy for the driver to operate and has good visibility.

[0120] In this embodiment, when the arm member 72 is rotated around the first shaft portion 731, the arm member 72 and the first shaft portion support frame 732 come into contact with each other, preventing the arm member 72 from rotating beyond a certain limit. More specifically, the arm member 72 comes into contact with a side wall portion 732a of the first shaft portion support frame 732, preventing the arm member 72 from rotating beyond a certain limit. In the first shaft portion support frame 732, the side wall portion 732a is provided outward in the left-right direction. In other words, in this embodiment, the support member 70 has a restricting portion 732a that restricts the arm member 72 from rotating outward in the left-right direction.

[0121] By providing the restricting portion 732a, it is possible to prevent the arm member 72 from rotating more than necessary and to prevent it from colliding with components that make up the driving section 8. For example, if the tractor is equipped with a cabin, it is possible to prevent the display device 60 from colliding with glass that makes up the cabin. Note that the first axle support frame 732 may also be configured to have sidewall portions on the inner left-right side, so that the arm member 72 is restricted from rotating inward in the left-right direction.

[0122] In the above description, the arm member 72 is provided with cylindrical portions 722 and 723, and the first connecting portion 73 and the second connecting portion 74 are provided with shaft portions 731 and 741. This configuration is an example, and it is also possible to provide shaft portions at both ends of the arm member, and cylindrical portions at the first connecting portion and the second connecting portion, for example.

[0123] Furthermore, the rotation of the arm member 72 relative to the support stay 71 and the rotation of the display device 60 relative to the arm member 72 are configured to be adjustable at any angle using a friction structure, but this is also an example. The rotation of the arm member 72 relative to the support stay 71 and the rotation of the display device 60 relative to the arm member 72 may also be configured to be adjustable at predetermined angle intervals.

[0124] Furthermore, instead of the configuration in which the angle of the display device 60 can be adjusted using the second shaft portion 741 and the third shaft portion 743, a configuration in which the angle of the display device 60 can be adjusted using a ball joint may be used. Furthermore, the arm member 72 is not essential, and the display device 60 may be connected to the support stay 71 without the arm member 72 so that the angle can be adjusted.

[0125] (2-3-3. Modifications of Display Device Arrangement, etc.) Fig. 13 is a perspective view showing the general configuration of a tractor 1A with a cabin. Similar to the tractor 1 described above, the tractor 1A is equipped with a driving section 8A including a driver's seat 9 and a steering operation section 10 (see Fig. 1, etc.). A cabin 24 is provided in the driving section 8A. The cabin 24 covers the driver's seat 9 and the steering operation section 10. Fig. 13 shows the state in which the right door of the cabin 50 has been removed.

[0126] A display device 60 is disposed inside the cabin 24. The display device 60 is supported by a support member 70A disposed in the cabin 24. The support member 70A that supports the display device 60 is attached to a frame 25 of the cabin 24 (hereinafter referred to as the cabin frame 25).

[0127] The support member 70A is configured similarly to the support member 70 provided in the tractor 1 according to the above-described embodiment, except for a slight difference in the configuration of the support stay 71A. The support stay 71A is attached to the horizontal frame portion 25a extending horizontally of the cabin frame 25 and the vertical frame portion 25b extending vertically of the cabin frame 25. That is, in this modification, the support stay 71A is configured to be supported by the horizontal frame portion 25a and the vertical frame portion 25b, as in the above-described embodiment, and therefore can firmly support the display device 60. This makes it possible to prevent the display device 60 from shaking due to vibrations when the tractor 1A is traveling.

[0128] <3. Things to keep in mind> Various modifications can be made to the various technical features disclosed in this specification without departing from the spirit of the technical creation. Furthermore, multiple embodiments and modifications shown in this specification can be combined to the extent possible.

[0129] <4. Notes> An exemplary display device of the present invention is a display device provided on a work vehicle, and is configured (first configuration) to include a display unit having a display screen that displays information related to the automatic driving of the work vehicle, and an operation unit connected to the display unit and having operating members that enable operations related to the automatic driving.

[0130] In the first configuration, the operation unit may be arranged below the display unit (second configuration).

[0131] In the second configuration, the surface of the operation unit on which the operation members are provided may be inclined with respect to the display screen (third configuration).

[0132] In any of the above first to third configurations, the display unit may have a monitor operation unit, and the display screen may be configured to display content that can be operated using the monitor operation unit (fourth configuration).

[0133] In the second or third configuration, the operation portion may have a shape that tapers downward (fifth configuration).

[0134] In any of the above first to fifth configurations, the operating member may be a configuration (sixth configuration) in which at least the first operating member is included among a first operating member that enables the automatic driving to be switched on and off and a second operating member that enables an operation different from that of the first operating member.

[0135] In the sixth configuration, the second operating member may be a route correction operating member that enables correction of the route of the automatic traveling (seventh configuration).

[0136] In the sixth configuration, the second operating member may be configured (eighth configuration) to be a mode switching operating member that enables transition to an automatic driving mode in which operations related to the automatic driving are enabled.

[0137] In the sixth configuration, the second operating member may be a reference line setting operating member that enables setting of a reference line used in generating a route for the automatic driving (ninth configuration).

[0138] In the above sixth configuration, the second operating member may be configured (tenth configuration) to be a reference line setting mode selection operating member that enables selection of a reference line setting mode to be used when setting a reference line to be used in generating a route for the automatic driving.

[0139] In the above-mentioned sixth configuration, the second operating member may be configured (eleventh configuration) to be a registered reference line selection operating member that enables selection of a reference line to be used from among reference lines registered as reference lines to be used in generating the route for the automatic driving.

[0140] An exemplary work vehicle of the present invention may have a configuration (twelfth configuration) that includes a display device of any of the first to eleventh configurations described above. [Explanation of symbols]

[0141] 1, 1A... Tractor (work vehicle) 60...Display device 61...Display section 62...Operation unit 62a...Operation member arrangement surface 611...Display screen 612 Monitor operation unit 621 Operating member 621a... First operating member 621b... Second operating member

Claims

1. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The operating member includes: a first operating member that enables the automatic traveling to be switched on and off; a second operating member that allows an operation different from that of the first operating member; Among these, at least the first operating member is included, The second operating member is a route correction operating member that enables correction of the route of the automatic driving.

2. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The operating member includes: a first operating member that enables the automatic traveling to be switched on and off; a second operating member that allows an operation different from that of the first operating member; Among these, at least the first operating member is included, The second operating member is a mode switching operating member that enables transition to an automatic driving mode in which operations related to the automatic driving are enabled.

3. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The operating member includes: a first operating member that enables the automatic traveling to be switched on and off; a second operating member that allows an operation different from that of the first operating member; Among these, at least the first operating member is included, The second operating member is a reference line setting operating member that enables setting of a reference line used in generating a route for the automatic driving.

4. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The operating member includes: a first operating member that enables the automatic traveling to be switched on and off; a second operating member that allows an operation different from that of the first operating member; Among these, at least the first operating member is included, A display device, wherein the second operating member is a reference line setting mode selection operating member that enables selection of a reference line setting mode to be used when setting a reference line to be used in generating a route for the automatic driving.

5. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The operating member includes: a first operating member that enables the automatic traveling to be switched on and off; a second operating member that allows an operation different from that of the first operating member; Among these, at least the first operating member is included, A display device wherein the second operating member is a registered reference line selection operating member that enables selection of a reference line to be used from among reference lines registered as reference lines to be used in generating the route for the automatic driving.

6. A display device provided in a work vehicle, a display unit having a display screen that displays information related to the automatic driving of the work vehicle; an operation unit connected to the display unit and having an operation member that enables operations related to the automatic driving; Equipped with The display device, wherein the operation unit is disposed below the display unit and has a shape that tapers downward.

7. The display device according to claim 6 , wherein a surface of the operation section on which the operation members are provided is inclined with respect to the display screen.

8. the display unit has a monitor operation unit, The display device according to claim 7 , wherein the display screen displays content that can be operated by the monitor operation unit.

9. A work vehicle comprising the display device according to any one of claims 1 to 8.

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