JP6243317B2 - Tractor - Google Patents

Description

The present invention relates to a tractor .

  Conventionally, a tractor which is a typical work vehicle is known (see Patent Document 1). The tractor has a plurality of control objects, and the object is achieved by appropriately controlling each control object.

  By the way, the tractor can arbitrarily adjust each control object. For example, the tractor can adjust the traveling speed by the operator operating a predetermined control tool. The tractor can adjust the height of the work machine when the operator operates a predetermined control tool. However, these operations may be difficult because it is difficult for an operator to imagine changes before and after adjustment.

JP 2013-183709 A

An object of the present invention is to provide a tractor in which an operator can operate a control tool while looking at a screen, and the operation is easy.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

The invention according to claim 1 includes a control tool connected to the control device, and is a tractor that changes an operating state in accordance with an operation of the control tool, and is disposed on an armrest of a driver seat and a front upper surface of the armrest. A shift lever as the control tool, and a display in the vicinity of the driver seat, and the display displays an illustration representing the shift lever on the screen of the display when the shift lever is operated, On the side of the illustration, a bar graph that expands or shortens in accordance with a change in the set speed is displayed in the vertical direction .

The invention which concerns on Claim 2 is provided with a raising / lowering dial as the said control tool arrange | positioned at the front outer side surface of the said armrest, The said display shows the raising / lowering dial on the screen of the said display at the time of operation of the said raising / lowering dial. On the side of the illustration, a bar graph that expands or shortens in accordance with the change in the set height is displayed in the vertical direction .

The invention according to claim 3 includes a lift switch as the control tool, and the display displays an illustration representing the lift switch on the screen of the display when the lift switch is operated. A bar graph that expands or shortens in accordance with the set height is displayed in the vertical direction .

  As effects of the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the screen of the display changes when the shift lever is operated, and an illustration and a bar graph can be displayed on the screen for assisting the operator. Thereby, this tractor can operate the speed-change lever suitably by the operator.

According to the second aspect of the present invention, the screen of the display changes when the elevating dial is operated, and an illustration and a bar graph can be displayed on the screen for assisting the operator. Thus, the tractor operator can operate the lifting dial appropriately.

According to the third aspect of the present invention, the screen of the display changes when the lift switch is operated, and an illustration and a bar graph can be displayed on the screen for assisting the operator. Thus, the tractor operator can operate the lifting switch appropriately.

The figure which shows a tractor. The figure seen from the arrow X of FIG. The figure seen from the arrow Y of FIG. The figure seen from the arrow Z of FIG. The figure which shows the power transmission system of a tractor. The figure which shows a continuously variable transmission. The figure which shows the link mechanism of a tractor. The figure which shows the height automatic control of a rotary. The figure which shows the inclination automatic control of a rotary. The figure which shows the driver's seat of a tractor, and its circumference | surroundings. The figure which shows a visual field of an operator. The figure which shows the control tool provided in the armrest. The figure which shows the information network of a tractor. The figure which shows a display. The figure which shows the control system regarding a display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display. The figure which shows the screen displayed on the display.

  First, the tractor 1 will be briefly described.

  FIG. 1 shows a tractor 1. 2 is a view as seen from the arrow X in FIG. 1, and FIG. 3 is a view as seen from the arrow Y in FIG. FIG. 4 is a view seen from the arrow Z in FIG. In the figure, the front-rear direction, the left-right direction, and the vertical direction of the tractor 1 are shown.

  The tractor 1 mainly includes a frame 11, an engine 12, a transmission 13, a front axle 14, and a rear axle 15. Further, the tractor 1 includes a cabin 16. The cabin 16 has a cockpit inside, and an accelerator pedal 162 and a shift lever 163 are arranged in addition to the driver's seat 161 (see FIG. 10).

  The frame 11 forms a skeleton at the front portion of the tractor 1. The frame 11 constitutes the chassis of the tractor 1 together with the transmission 13 and the rear axle 15. The engine 12 described below is supported by the frame 11.

  The engine 12 converts thermal energy obtained by burning fuel into kinetic energy. That is, the engine 12 generates rotational power by burning fuel. The engine 12 is connected to an engine control device (not shown). When the operator operates the accelerator pedal 162 (see FIG. 10), the engine control device changes the operating state of the engine 12 according to the operation. Further, the engine 12 is provided with an exhaust purification device 12E. The exhaust purification device 12E oxidizes particulates, carbon monoxide, hydrocarbons, etc. contained in the exhaust.

  The transmission 13 transmits the rotational power of the engine 12 to the front axle 14 and the rear axle 15. The rotational power of the engine 12 is input to the transmission 13 via a coupling mechanism. The transmission 13 is provided with a continuously variable transmission 33 (see FIG. 5). When the operator operates the shift lever 163 (see FIG. 10), the continuously variable transmission 33 changes the operating state of the transmission 13 according to the operation.

  The front axle 14 transmits the rotational power of the engine 12 to the front tire 141. The rotational power of the engine 12 is input to the front axle 14 via the transmission 13. The front axle 14 is provided with a steering device (not shown). When the operator operates the handle 164 (see FIG. 10), the steering device changes the steering angle of the front tire 141 according to the operation.

  The rear axle 15 transmits the rotational power of the engine 12 to the rear tire 151. The rotational power of the engine 12 is input to the rear axle 15 via the transmission 13. The rear axle 15 is provided with a PTO output device (not shown). When the operator operates the PTO switch 165 (see FIG. 10), the PTO output device transmits rotational power to the working machine to be pulled according to the operation. Further, the rear axle 15 is provided with a link mechanism 36 (see FIG. 7). The link mechanism 36 will be described later.

  Next, the power transmission system of the tractor 1 will be described.

  FIG. 5 shows a power transmission system of the tractor 1. FIG. 6 shows the continuously variable transmission 33.

  The power transmission system of the tractor 1 mainly includes an engine 12, a transmission 13, a front axle 14, and a rear axle 15. Here, the description will be made focusing on the structure of the transmission 13.

  The transmission 13 includes a continuously variable transmission 33, a forward / reverse switching device 34, and an auxiliary transmission 35.

  The continuously variable transmission 33 can continuously change the ratio of the rotational speeds of the input shaft 331 and the output shaft 332. The input shaft 331 is connected to a plunger block 333 that is rotatably supported. The plunger block 333 delivers high-pressure hydraulic oil and functions as a hydraulic pump 33P. The output shaft 332 is connected to a motor case 334 that is rotatably supported. The motor case 334 rotates by receiving high-pressure hydraulic oil and functions as a hydraulic motor 33M. A forward drive gear 335 and a reverse drive gear 336 are attached to the output shaft 332.

  The forward / reverse switching device 34 can operate the forward clutch 341 and the reverse clutch 342 independently of each other. The forward clutch 341 has a forward driven gear 343 that meshes with the forward drive gear 335. The forward clutch 341 operates to transmit the rotational power of the output shaft 332 to the center shaft 345. The reverse clutch 342 has a reverse driven gear 344 that meshes with the reverse drive gear 336 via a reverse gear. The reverse clutch 342 is operated to transmit the rotational power of the output shaft 332 to the center shaft 345. An ultra-low speed drive gear 346, a first speed drive gear 347, and a second speed drive gear 348 are attached to the center shaft 345.

  The auxiliary transmission 35 can operate the ultra-low speed clutch 351, the first speed clutch 352, and the second speed clutch 353 independently of each other. The ultra-low speed clutch 351 has an ultra-low speed driven gear 354 that meshes with the ultra-low speed drive gear 346. The ultra-low speed clutch 351 operates to transmit the rotational power of the center shaft 345 to the counter shaft 357. The first speed clutch 352 has a first speed driven gear 355 that meshes with the first speed drive gear 347. The first speed clutch 352 operates to transmit the rotational power of the center shaft 345 to the counter shaft 357. Second speed clutch 353 has second speed driven gear 356 that meshes with second speed drive gear 348. The second speed clutch 353 operates to transmit the rotational power of the center shaft 345 to the counter shaft 357. A front drive gear 358 and a rear drive gear 359 are attached to the counter shaft 357.

  With such a structure, the rotational power of the counter shaft 357 is transmitted to the front tire 141 via the front axle 14. Further, the rotational power of the counter shaft 357 is transmitted to the rear tire 151 via the rear axle 15.

  By the way, the continuously variable transmission 33 can change the rotational speed of the output shaft 332. More specifically, the continuously variable transmission 33 can change the rotational speed of the output shaft 332 by moving the cradle 337 and changing the amount of hydraulic oil delivered. Therefore, the traveling speed of the tractor 1 changes when the continuously variable transmission 33 changes the rotational speed of the output shaft 332.

  Next, the link mechanism 36 of the tractor 1 will be described.

  FIG. 7 shows the link mechanism 36 of the tractor 1. In the following, it is assumed that the rotary 10 is attached to the link mechanism 36. FIG. 8 shows automatic height control of the rotary 10. FIG. 9 shows the automatic tilt control of the rotary 10.

  The link mechanism 36 can realize automatic height control and tilt automatic control of the rotary 10. The link mechanism 36 includes a top bracket 361 and a top link 362. The link mechanism 36 includes a lower bracket 363 and a lower link 364. Further, the link mechanism 36 includes a lift arm 365, an elevating actuator 366, a lift link 367, and a tilting actuator 368.

  The top bracket 361 is attached to the rear part of the rear axle 15. The top bracket 361 has a hinge portion in which two plates that are parallel to each other are welded. The hinge part is provided with a pin hole penetrating the two plates in the horizontal direction.

  The top link 362 is attached to the hinge portion of the top bracket 361. The top link 362 is rotatably connected around the pin P1 by inserting the pin P1 with the pin hole of the clevis attached to the base end portion and the pin hole of the top bracket 361 being overlapped. ing. The top link 362 is rotatable about the pin by inserting a pin (not shown) with the pin hole of the clevis attached to the tip and the pin hole of the rotary 10 being overlapped. It is connected to.

  The lower bracket 363 is attached to the lower part of the rear axle 15. The lower bracket 363 has a hinge portion in which two plates that are parallel to each other are welded. The hinge part is provided with a pin hole penetrating the two plates in the horizontal direction.

  The lower link 364 is attached to the hinge portion of the lower bracket 363. The lower link 364 is rotatably connected around the pin P2 by inserting the pin P2 in a state where the pin hole provided at the base end and the pin hole of the lower bracket 363 are overlapped. Further, the lower link 364 is connected to a rod (not shown) of the rotary 10 so that the hook attached to the tip is pivoted about the rod.

  The lift arm 365 is attached to the side portion of the rear axle 15. The lift arm 365 is rotatably connected around the pin P3 by fitting the pin P3 of the rear axle 15 into a pin hole provided at the base end. Further, the lift arm 365 has a clevis formed at the tip, and a universal joint 365J is attached to the clevis.

  The lift actuator 366 is attached to the center of the lift arm 365. The lifting actuator 366 is rotatably connected around the pin P4 by inserting the pin P4 in a state where the pin hole of the clevis attached to the cylinder and the pin hole of the lift arm 365 are overlapped. Yes. The lifting actuator 366 is rotatable about the pin P5 when the pin P5 is inserted in a state where the pin hole of the clevis attached to the piston rod and the pin hole of the lower bracket 363 are overlapped. It is connected.

  The lift link 367 is attached to the left lift arm 365 and the lower link 364. The lift link 367 is rotatably connected around the pin P6 by inserting the pin P6 in a state where the pin hole of the clevis attached to the base end portion and the pin hole of the universal joint 365J are overlapped. ing. Further, the lift link 367 is rotatably connected around the pin P7 by inserting the pin P7 in a state where the pin hole of the clevis attached to the tip and the pin hole of the lower link 364 are overlapped. ing.

  The tilting actuator 368 is attached to the right lift arm 365 and the lower link 364. The tilting actuator 368 is rotatably connected around the pin P8 by inserting the pin P8 in a state where the pin hole of the clevis attached to the cylinder and the pin hole of the universal joint 365J are overlapped. Yes. In addition, the tilting actuator 368 is rotatably connected around the pin P9 by inserting the pin P9 in a state where the pin hole of the clevis attached to the piston rod and the pin hole of the lower link 364 are overlapped. Has been.

  With such a structure, when the piston rod of the lifting actuator 366 is slid and pushed out (when the lifting actuator 366 extends), the lift arm 365 is rotated upward. Then, since the lift arm 365 pulls up the left and right lower links 364 via the lift link 367 and the tilting actuator 368, the height of the rotary 10 is increased (see arrow Ra in FIG. 8A). Therefore, if this operation is realized in a situation where the rotary 10 is depressed, the tilling depth is maintained in a constant state.

  On the contrary, when the piston rod of the lifting / lowering actuator 366 is slid and pulled (when the lifting / lowering actuator 366 contracts), the lift arm 365 is rotated downward. Then, since the lift arm 365 pushes down the left and right lower links 364 via the lift link 367 and the tilting actuator 368, the height of the rotary 10 is reduced (see arrow Rb in FIG. 8B). Therefore, if this operation is realized in a situation where the rotary 10 is lifted, the tilling depth is maintained in a constant state.

  In addition, when the piston rod of the tilting actuator 368 slides and is pushed out (when the tilting actuator 368 extends), only the lower link 364 on the right side to which the tilting actuator 368 is attached rotates downward. Become. Then, the lower link 364 on the left side is maintained as it is, but the lower link 364 on the right side is pushed down, so that the rotary 10 is tilted downward (see arrow Rc in FIG. 9A). Therefore, if this operation is realized while the tractor 1 is tilted to the left, the rotary 10 is maintained in a horizontal state.

  On the contrary, when the piston rod of the tilting actuator 368 is slid and retracted (when the tilting actuator 368 contracts), only the right lower link 364 to which the tilting actuator 368 is attached rotates upward. Become. Then, the lower link 364 on the left side is maintained as it is, but the lower link 364 on the right side is pulled up, so that the rotary 10 is inclined upward (see the arrow Rd in FIG. 9B). Therefore, if this operation is realized while the tractor 1 is tilted to the right, the rotary 10 is maintained in a horizontal state.

  Next, the cockpit of the tractor 1 will be described.

  FIG. 10 shows the driver seat 161 and its surroundings. FIG. 11 shows the field of view of the operator. FIG. 12 shows a control tool provided on the armrest 161r.

  As described above, the cabin 16 has a cockpit inside, and an accelerator pedal 162 and a shift lever 163 are arranged in addition to the driver's seat 161. Around the driver's seat 161, a brake pedal 166, a clutch pedal 167, a reverser lever 168, a speed dial 169, an instrument panel 170, a control panel 171, a shift lever 172, a lift dial 173, a lift switch 174, and the like are arranged. ing. The operator can operate the tractor 1 by operating the accelerator pedal 162 and the shift lever 163 while sitting on the driver's seat 161. Note that when the operator operates the shift lever 163, the auxiliary transmission 35 is activated. Then, the rotational power is transmitted according to the operation position of the shift lever 163 (any one of “ultra-low speed”, “first speed”, and “second speed” positions).

  Here, the shift lever 172, the elevating dial 173, and the elevating switch 174, which are controls of the tractor 1, will be described.

  The transmission lever 172 is disposed on the upper surface of the front portion of the armrest 161r. The transmission lever 172 is rotatable and can be arbitrarily tilted by the operator. The shift lever 172 is connected to the control device 3 (see FIG. 15), and the cradle 337 can be moved via the control device 3. With such a structure, the operator can freely adjust the traveling speed.

  The elevating dial 173 is disposed on the front right surface of the armrest 161r. The elevating dial 173 is rotatable and can be arbitrarily turned by an operator. The lifting dial 173 is connected to the control device 3 (see FIG. 15), and the lifting actuator 366 can be moved through the control device 3. With such a structure, the operator can freely adjust the height of the rotary 10. The lift dial 173 is used when roughly adjusting the height of the rotary 10.

  The lift switch 174 is disposed on the left surface of the speed change lever 172. The lift switch 174 is freely movable and can be arbitrarily pressed by the operator. The lift switch 174 is connected to the control device 3 (see FIG. 15), and the lift actuator 366 can be moved through the control device 3. With such a structure, the operator can freely adjust the height of the rotary 10. The lift switch 174 is used to finely adjust the height of the rotary 10.

  Further, the tractor 1 includes the display 2 in the vicinity of the driver seat 161. The display 2 is disposed on the right front side of the driver seat 161 so that the operator can operate with the right hand. Hereinafter, the information network of the tractor 1 will be briefly described, and the display 2 and a control system related to the display 2 will be described.

  FIG. 13 shows an information network of the tractor 1. FIG. 14 shows the display 2. FIG. 15 shows a control system related to the display 2.

  The tractor 1 is provided with information networks in various places so that the maximum performance can be exhibited. Specifically, in addition to the engine 12, the transmission 13, the instrument panel 170, the control panel 171, and the display 2 constitute a controller area network (CAN) that can share information with each other.

  In the tractor 1, the display 2 is disposed on the side console (see FIGS. 10 and 11). The display 2 has a liquid crystal panel 21, an encoder dial 22, and an enter button 23. The display 2 has five command buttons 24, 25, 26, 27, and 28.

  The liquid crystal panel 21 is provided in the center of the front surface of the display 2. The liquid crystal panel 21 can display a predetermined screen based on an instruction from the control device 3. For example, the liquid crystal panel 21 can display the opening screen S1 based on an instruction from the control device 3 (see FIG. 16). The liquid crystal panel 21 can display other screens based on instructions from the control device 3 (see FIGS. 17 to 30). The liquid crystal panel 21 may be a so-called touch panel.

  The encoder dial 22 is provided on the right side of the upper surface of the display 2. The encoder dial 22 can transmit the operator's intention to scroll the tab or traverse the highlight to the control device 3 when selecting the element displayed on the liquid crystal panel 21. For example, the encoder dial 22 can transmit the operator's intention to scroll the tab to the control device 3 when selecting the displayed number or alphabet (see FIG. 17). Further, the encoder dial 22 can transmit the operator's intention to traverse highlights to the control device 3 when selecting the displayed icon (see FIGS. 18 and 19).

  The enter button 23 is provided integrally with the encoder dial 22. The enter button 23 can transmit to the control device 3 the operator's intention that one of the elements displayed on the liquid crystal panel 21 has been determined. For example, the enter button 23 can transmit the operator's intention to the effect of determining one of the displayed numbers or English characters to the control device 3 (see FIG. 17). Moreover, the enter button 23 can transmit the operator's intention to the effect that the one icon has been determined among the displayed icons to the control device 3 (see FIGS. 18 and 19). In the display 2, the enter button 23 has a structure in which the encoder dial 22 itself is pushed, but may have a structure in which a push button is provided on the upper end surface of the encoder dial 22.

  The command buttons 24, 25, and 26 are provided on the upper front portion of the display 2. The command buttons 24, 25, and 26 can transmit an operator's intention to switch to another screen to the control device 3 when a predetermined screen is displayed on the liquid crystal panel 21. For example, the command buttons 24 and 25 can transmit the operator's intention to switch to the shortcut screen (the screen arbitrarily set by the operator) to the control device 3 when the home screen S3 is displayed on the liquid crystal panel 21 ( (See FIG. 18). Further, the command button 26 can transmit the operator's intention to switch to the home screen S3 to the control device 3 when the customization screen S4 is displayed on the liquid crystal panel 21 (see FIG. 19).

  A command button 27 is also provided at the upper front of the display 2. Specifically, it is provided at a position adjacent to the command button 26. As with the enter button 23, the command button 27 can transmit the operator's intention to the effect that the one element has been determined to the control device 3. For example, the command button 27 can transmit the operator's intention to the effect of determining one of the displayed numbers and English characters to the control device 3 (see FIG. 17). Further, the command button 27 can transmit the operator's intention to the effect that the one of the displayed icons has been determined to the control device 3 (see FIGS. 18 and 19).

  A command button 28 is also provided at the upper front of the display 2. Specifically, it is provided at a position adjacent to the command button 27. The command button 28 can transmit the operator's intention to return to the previous screen to the control device 3 when a predetermined screen is displayed on the liquid crystal panel 21. For example, the command button 28 can transmit the operator's intention to return to the home screen S3 to the control device 3 when the customization screen S4 is displayed on the liquid crystal panel 21 (see FIG. 19).

  By the way, the screen of the display 2 is switched according to the operation of the operator. For example, when the operator operates the shift lever 172, the display 2 is switched from the current screen to a predetermined screen. The display 2 is switched from the current screen to a predetermined screen when the operator operates the lift dial 173. Further, the display 2 is switched from the current screen to a predetermined screen when the operator operates the lift switch 174. Here, the “current screen” refers to any screen displayed on the liquid crystal panel 21 and is not limited to a specific screen.

  Hereinafter, an operation method for executing such a function will be described, and a case where the operator operates a control tool such as the shift lever 172 will be described.

  16 to 24 show screens displayed on the display 2. However, each figure shows only a part necessary for the description of the present invention in a simplified manner.

  First, an operation method for executing a function of switching the screen according to the operation of the operator will be described.

  First, an opening screen S1 is displayed on the display 2 (see FIG. 16). On the opening screen S1, a symbol mark Sm is displayed near the center. The symbol mark Sm is a design symbolizing the supplier manufacturer. The symbol mark Sm floats on a black background image and gives a strong impression to the operator.

  Next, the lock release screen S2 is displayed on the display 2 (see FIG. 17). On the unlock screen S2, scroll boxes Sb1, Sb2, Sb3, and Sb4 for inputting the password are displayed in a horizontal row. Any one of the scroll boxes Sb1, Sb2, Sb3, and Sb4 is highlighted (refer to part H in the figure). The scroll boxes Sb1, Sb2, Sb3, and Sb4 can scroll numbers from 0 to 9 or English letters from A to F. The operator can select a number or alphabet by turning the encoder dial 22 and press the enter button 23 to determine.

  In the unlock screen S2, it is possible to select numbers or letters by pressing the command buttons 25 and 26 and to determine by pressing the command button 27. The decision can also be canceled by pressing the command button 28. In addition, if the password is wrong, a message to that effect is displayed. On the unlock screen S2, a dialog box Db1 in which the name of the operator is written and a dialog box Db2 in which the work schedule is written are displayed. The operator can grasp his / her work schedule from these dialog boxes Db1 and Db2.

  Next, the home screen S3 is displayed on the display 2 (see FIG. 18). On the home screen S3, icons Ia1, Ia2, Ia3, Ia4,... Ia8 for selecting menus are displayed in two upper and lower rows. One of the selected icons Ia1, Ia2, Ia3, Ia4,... Ia8 is highlighted (refer to the portion H in the figure). The highlight is traversed according to the rotation of the encoder dial 22. The operator can select the desired icon (any one of Ia1, Ia2, Ia3, Ia4... Ia8) by turning the encoder dial 22 and press the enter button 23 to determine.

  On the home screen S3, it is possible to select an icon (any one of Ia1, Ia2, Ia3, Ia4... Ia8) by pressing a command button (any one of 24, 25, 26, 27, and 28). Although not possible, it can be determined by pressing the command button 27. Further, when the command button 28 is pressed, the screen can return to the unlock screen S2. In addition, when the button Ba1 marked "Previous page" or the button Ba2 marked "Next page" is selected and determined, the screen is switched to another home screen S3. Icons that cannot be selected are grayed out (see part G in the figure).

  Here, the icon Ia5 labeled “Display setting” is selected and determined.

  A customization screen S4 is displayed on the display 2 (see FIG. 19). On the customization screen S4, icons Ib1, Ib2, Ib3, and Ib4 for selecting menus are displayed in two columns on the left and right. Any one of the selected icons Ib1, Ib2, Ib3, and Ib4 is highlighted (refer to the portion H in the figure). The highlight is traversed according to the rotation of the encoder dial 22. The operator can select a desired icon (any one of Ib1, Ib2, Ib3, and Ib4) by turning the encoder dial 22 and press the enter button 23 to determine.

  In the customization screen S4, an icon (any one of Ib1, Ib2, Ib3, and Ib4) cannot be selected by pressing a command button (any one of 24, 25, 26, 27, and 28). It can be determined by pressing button 27. Further, when the command button 28 is pressed, the home screen S3 can be returned. Icons that cannot be selected are grayed out (not shown).

  Next, the icon Ib3 described as “setting for interrupt display during operation” on the customization screen S4 is selected and determined.

  An interrupt setting screen S5 is displayed on the display 2 (see FIG. 20). Dialog locks De1 is displayed on the interrupt setting screen S5. A select switch Se1 is displayed on the left side of the dialog box De1. Hereinafter, the meaning of the select switch Se1 corresponding to the meaning of the dialog lock De1 will be described.

  The dialog lock De1 is a part that can be selected as to whether or not to execute a function of switching the screen in accordance with an operation of the operator. More specifically, the dialog lock De1 is a part that can be selected as to whether or not to execute a function of switching from the current screen to a predetermined screen when the operator operates the shift lever 172 or the like.

  When the select switch Se1 is “ON”, this function is executed. That is, if the operator operates the shift lever 172 or the like when the select switch Se1 is “ON”, the current screen is switched to a predetermined screen. On the other hand, when the select switch Se1 is “OFF”, the current screen is maintained even if the operator operates the shift lever 172 or the like. The operator can select either “ON” or “OFF” by turning the encoder dial 22 and press the enter button 23 to determine.

  On the interrupt setting screen S5, either “ON” or “OFF” cannot be selected by pressing a command button (any one of 24, 25, 26, 27, and 28). It can be determined by pressing. An explanation of the operation method is described next to each select switch Se1. When the command button 28 is pressed, it is possible to return to the customization screen S4.

  Next, a case where the operator operates the shift lever 172 will be described.

  When the operator operates the shift lever 172, the control device 3 automatically switches the screen of the display 2 to the shift lever operation screen S6 (see FIG. 21). On the shift lever operation screen S6, an illustration If1 representing the shift lever 172 is displayed. Further, a bar graph Sf1 is displayed in the vertical direction on the right side of the illustration If1. Hereinafter, the meaning of the bar graph Sf1 will be specifically described.

  The bar graph Sf1 is a portion where the set speed of the tractor 1 is visible. In the bar graph Sf1, the lower end side is a direction in which the set speed is decreased, and the upper end side is a direction in which the set speed is increased. Then, the height of the bar in the bar graph Sf1 is expanded or shortened according to the change in the set speed. That is, when the operator moves the shift lever 172 to change the set speed, the bar height in the bar graph Sf1 expands or shortens accordingly. The bar graph Sf1 is expressed as a percentage in which the minimum operation position of the shift lever 172 is 0 and the maximum operation position is 100.

  As described above, the display 2 can change the screen when operating the control tool (shift lever 172) and can display a screen (shift lever operation screen S6) for assisting the operator. Thus, the tractor 1 (work vehicle) can be operated easily because the operator can appropriately operate the control tool (shift lever 172).

  In other words, the screen of the display 2 changes when the shift lever 172 is operated, and a screen for assisting the operator (shift lever operation screen S6) can be displayed. Thereby, in this tractor 1 (work vehicle), the operator can appropriately operate the shift lever 172.

  In the shift lever operation screen S6, the set speed is displayed on the right side of the bar graph Sf1. The set speed is calculated from the operation position of the shift lever 163 and the operation position of the transmission lever 172. Further, when the command button 28 is pressed, the current screen (the screen before switching to the shift lever operation screen S6) can be returned.

  In the embodiment of the tractor 1, when the operator operates the shift lever 172, the current screen is switched to the shift lever operation screen S6. However, the technical idea of the present invention includes not only a mode of switching from the current screen to the shift lever operation screen S6 but also a mode of opening a window corresponding to the shift lever operation screen S6 on the current screen. That is, even if the window corresponding to the shift lever operation screen S6 is opened, it is included in the “screen for supporting the operator can be displayed”.

  Next, a case where the operator operates the elevating dial 173 will be described.

  When the operator operates the lift dial 173, the control device 3 automatically switches the screen of the display 2 to the lift dial setting screen S7 (see FIG. 22). On the lift dial setting screen S7, an illustration Ig1 representing the lift dial 173 is displayed. Also, a bar graph Sg1 is displayed in the vertical direction to the right of the illustration Ig1. Hereinafter, the meaning of the bar graph Sg1 will be specifically described.

  The bar graph Sg1 is a portion where the set height of the rotary 10 is visible. The bar graph Sg1 indicates that the lower end side has a low set height and the upper end side has a high set height. The bar height in the bar graph Sg1 is expanded or shortened according to the change in the set height. That is, the bar height in the bar graph Sg1 is expanded or shortened accordingly when the operator turns the lifting dial 173 to change the set height. The bar graph Sg1 is expressed as a percentage where the minimum operation position of the elevating dial 173 is 0 and the maximum operation position is 100.

  In this way, the display 2 can change the screen when operating the control tool (elevating dial 173), and can display a screen (elevating dial operation screen S7) for assisting the operator. Thus, the tractor 1 (work vehicle) can be operated easily because the operator can appropriately operate the control tool (elevating dial 173).

  That is, the display 2 can display a screen for supporting the operator (elevating dial operation screen S7) when the elevating dial 173 is operated. Thereby, as for this tractor 1 (work vehicle), the operator can operate the raising / lowering dial 173 suitably.

  Note that, on the lift dial operation screen S7, the set height is displayed on the right side of the bar graph Sg1 (not shown). The set height is calculated from the operation position of the elevating dial 173 with respect to the height of the rotary 10 serving as a reference. In addition, when the command button 28 is pressed, it is possible to return to the current screen (the screen before switching to the lift dial operation screen S7).

  In the embodiment of the tractor 1, when the operator operates the lift dial 173, the current screen is switched to the lift dial operation screen S7. However, the technical idea of the present invention includes not only a mode of switching from the current screen to the lift dial operation screen S7 but also a mode of opening a window corresponding to the lift dial operation screen S7 on the current screen. In other words, even if the window corresponding to the lift dial operation screen S7 is opened, it is included in “a screen for supporting the operator can be displayed”.

  Next, a case where the operator operates the lift switch 174 will be described.

  When the operator operates the up / down switch 174, the control device 3 automatically switches the screen of the display 2 to the up / down switch operation screen S8 (see FIG. 23). On the up / down switch setting screen S8, an illustration Ih1 representing the up / down switch 174 is displayed. Further, a bar graph Sh1 is displayed in the vertical direction to the right of the illustration Ih1. Hereinafter, the meaning of the bar graph Sh1 will be specifically described.

  The bar graph Sh1 is a portion where the set height of the rotary 10 is visible. The bar graph Sh1 indicates that the lower end side has a low set height and the upper end side has a high set height. The bar height in the bar graph Sh1 is expanded or shortened according to the change in the set height. That is, the height of the bar in the bar graph Sh1 is expanded or shortened accordingly when the operator changes the set height by pressing the lift switch 174. The bar graph Sh1 is expressed as a percentage where the minimum operation position of the lift switch 174 is 0 and the maximum operation position is 100.

  Thus, the display 2 can change the screen when operating the control tool (elevating switch 174), and can display a screen (elevating switch operation screen S8) for assisting the operator. Thus, the tractor 1 (work vehicle) can be operated easily because the operator can appropriately operate the control tool (elevating switch 174).

  That is, the screen of the display 2 is changed when the elevating switch 174 is operated, and a screen for supporting the operator (elevating switch operation screen S8) can be displayed. Thereby, as for this tractor 1 (work vehicle), the operator can operate the raising / lowering switch 174 suitably.

  In the lift switch operation screen S8, an arrow Ah1 is displayed to the right of the bar graph Sh1. An arrow Ah1 indicates a position before the lift switch 174 is operated. Therefore, fine adjustment by the operation of the lift switch 174 is facilitated. Further, when the command button 28 is pressed, the current screen (the screen before switching to the lift switch operation screen S8) can be returned.

  In the embodiment of the tractor 1, when the operator operates the lift switch 174, the current screen is switched to the lift switch operation screen S8. However, the technical idea of the present invention includes not only a mode of switching from the current screen to the lift switch operation screen S8 but also a mode of opening a window corresponding to the lift switch operation screen S8 on the current screen. That is, even if the window corresponding to the lift switch operation screen S8 is opened, it is included in the “screen for supporting the operator can be displayed”.

  Further, in the present display 2, even when the depth dial 175 (see FIG. 10) for adjusting the tilling depth is operated, the current screen is switched to a predetermined screen.

  When the operator operates the depth dial 175, the control device 3 automatically switches the screen of the display 2 to the depth dial operation screen S9 (see FIG. 24). On the depth dial operation screen S9, an illustration Ij1 representing the depth dial 175 is displayed. Further, a bar graph Sj1 is displayed in the vertical direction to the right of the illustration Ij1. Hereinafter, the meaning of the bar graph Sj1 will be specifically described.

  The bar graph Sj1 is a portion where the set depth of the rotary 10 is visible. In the bar graph Sj1, the lower end side indicates that the set depth is shallow, and the upper end side indicates that the set depth is deep. Then, the height of the bar in the bar graph Sj1 is expanded or shortened according to the change in the set depth. That is, the height of the bar in the bar graph Sj1 is expanded or shortened accordingly when the operator turns the depth dial 175 to change the set depth. The bar graph Sj1 is expressed as a percentage where the minimum operation position of the depth dial 175 is 0 and the maximum operation position is 100.

  Thus, the display 2 can change the screen when operating the control tool (depth dial 175), and can display a screen (depth dial operation screen S9) for assisting the operator. Thereby, since this operator can operate the control tool (depth dial 175) suitably, this operation becomes easy for this tractor 1 (work vehicle).

  In other words, the screen of the display 2 changes when the depth dial 175 is operated, and a screen for assisting the operator (depth dial operation screen S9) can be displayed. Thereby, as for this tractor 1 (work vehicle), the operator can operate the depth dial 175 suitably.

  In the depth dial operation screen S9, the set depth is displayed on the right side of the bar graph Sj1 (not shown). The set depth is calculated from the operation position of the depth dial 175 with respect to the reference depth of the rotary 10. Further, when the command button 28 is pressed, the current screen (the screen before switching to the depth dial operation screen S9) can be returned.

  In the embodiment of the tractor 1, when the operator operates the depth dial 175, the current screen is switched to the depth dial operation screen S9. However, the technical idea of the present invention includes not only a mode in which the current screen is switched to the depth dial operation screen S9 but also a mode in which a window corresponding to the depth dial operation screen S9 is opened on the current screen. That is, even if the window corresponding to the depth dial operation screen S9 is opened, it is included in “a screen for supporting the operator can be displayed”.

  In addition, on the display 2, a tab button Tk is displayed below the screen when a warning is issued. When the operator selects and determines the tab button Tk, the current screen is switched to a predetermined screen.

  When the control device 3 detects an abnormality from various information, the control device 3 displays a tab button Tk on the screen of the display 2 (see FIG. 25). The tab button Tk is provided with an illustration and a character string indicating the content of the abnormality. The tab button Tk has a different color depending on the severity of the abnormal content. Specifically, the tab button Tk whose abnormality content is severe is represented in red. Further, the tab button Tk having a medium abnormality content is displayed in yellow. Further, the tab button Tk having a slight abnormality content is displayed in gray.

  Next, when the operator selects and determines the tab button Tk, the control device 3 automatically switches the screen of the display 2 to the severe warning screen S11, the intermediate warning screen S12, or the minor warning screen S13 (FIGS. 26 and 26). 27, see FIG. 28). In each of the warning screens S11, S12, and S13, a dialog box Dk in which the abnormality content is described is displayed. The dialog box Dk has different colors depending on the severity of the abnormal content. More specifically, the dialog box Dk in the severe warning screen S11 has a frame portion displayed in red. Further, the dialog box Dk in the medium warning screen S12 has a yellow frame portion. Further, the frame portion of the dialog box Dk on the light warning screen S13 is displayed in gray.

  As described above, when the display 2 selects and determines the tab button Tk that appears at the time of issuing the warning, the screen is switched, and the screen for supporting the operator (the severe warning screen S11, the medium warning screen S12, or the minor warning screen S13). Can be displayed. Thus, the tractor 1 (work vehicle) can be dealt with by the operator immediately recognizing the situation.

  In each of the warning screens S11, S12, and S13, a countermeasure is displayed below the warning content. Therefore, it is possible for the operator to quickly deal with it. Further, when the command button 28 is pressed, the current screen (the screen before switching to each of the warning screens S11, S12, and S13) can be returned.

  In the embodiment of the tractor 1, when the operator selects and determines the tab button Tk, the current screen is switched to each of the warning screens S11, S12, and S13. However, the technical idea of the present invention includes not only a mode in which the current screen is switched to each of the warning screens S11, S12, and S13 but also a mode in which windows corresponding to the respective warning screens S11, S12, and S13 are opened on the current screen. . That is, even if the window corresponding to each of the warning screens S11, S12, and S13 is opened, it is included in “a screen for supporting an operator can be displayed”.

  In addition, when a predetermined setting is made, the display 2 is switched from the current screen to a screen that shows the back when the operator operates the reverser lever 168. Here, the “current screen” refers to any screen displayed on the liquid crystal panel 21 and is not limited to a specific screen.

  Below, the operation method which performs this function is demonstrated.

  First, an operation method for executing a function of switching the screen according to the operation of the operator will be described.

  First, on the home screen S3, the icon Ia7 labeled “Camera 1” is selected and determined.

  Then, the back camera setting screen S14 is displayed on the display 2 (see FIG. 29). On the back camera setting screen S14, the select switch Sn1 is displayed. Hereinafter, the meaning of the select switch Sn1 will be described.

  When the select switch Sn1 is “ON”, this function is executed. That is, when the selector switch Sn1 is “ON” and the operator operates the reverser lever 168 (only on the back side), the screen is switched from the current screen to the screen that shows the back. On the other hand, when the select switch Sn1 is “OFF”, even if the operator operates the reverser lever 168, the current screen is maintained. The operator can select either “ON” or “OFF” by turning the encoder dial 22 and press the enter button 23 to determine.

  In the back camera setting screen S14, either “ON” or “OFF” cannot be selected by pressing a command button (any one of 24, 25, 26, 27, and 28). It can be determined by pressing 27. The dialog box Dn1 describes the operation method. When the command button 28 is pressed, the home screen S3 can be returned.

  With this setting, when the operator operates the reverser lever 168 (back side operation only), the control device 3 automatically switches the screen of the display 2 to the rear video screen S15 (see FIG. 30).

  As described above, when the reverser lever 168 is operated (only on the back side operation), the display 2 can be switched to display a screen for assisting the operator (rear video screen S15). Thereby, as for this tractor 1 (work vehicle), an operator can confirm the safety of back.

  In the embodiment of the tractor 1, when the reverser lever 168 is operated (only on the back side), the current screen is switched to the rear video screen S15. However, the technical idea of the present invention includes not only a mode of switching from the current screen to the rear video screen S15 but also a mode of opening a window corresponding to the rear video screen S15 on the current screen. That is, even if the window corresponding to the rear video screen S15 is opened, it is included in the “screen for supporting the operator can be displayed”.

1 Tractor (work vehicle)
11 Frame 12 Engine 13 Transmission 14 Flint Axle 15 Rear Axle 16 Cabin 2 Display 21 Liquid Crystal Panel 22 Encoder Dial 23 Enter Button 24 Command Button 25 Command Button 26 Command Button 27 Command Button 28 Command Button 3 Control Device 172 Shift Lever 173 Lift Dial 174 Lift Switch Sf1 Bar graph Sg1 Bar graph Sh1 Bar graph Dk Dialog box

Claims (3)

In a tractor including a control tool connected to a control device and changing an operating state in accordance with an operation of the control tool,
An armrest of the driver seat, a shift lever as the control device disposed on the upper surface of the front portion of the armrest, and a display in the vicinity of the driver seat,
On the display, when the shift lever is operated, an illustration representing the shift lever is displayed on the display screen.
A tractor according to claim 1, wherein a bar graph extending or shortening in accordance with a change in a set speed is displayed vertically on the side of the illustration . Equipped with a lifting dial as the control tool arranged on the front outer surface of the armrest,
The display is displayed with an illustration representing the elevating dial on the display screen when the elevating dial is operated,
The tractor according to claim 1, wherein a bar graph that expands or shortens in accordance with a change in a set height is displayed on a side of the illustration in a vertical direction . A lift switch is provided as the control tool,
The display, when operating the lift switch, an illustration representing the lift switch is displayed on the screen of the display,
The tractor according to claim 1, wherein a bar graph that expands or shortens in accordance with a set height is displayed in a vertical direction on a side of the illustration .