Work vehicles

Abstract

To solve a problem of inconvenience in using convenient functions in a conventional vehicle in consideration of the inventor's thoughts that there will be an increasing trend in continuously installing convenient functions such as rice planting on a work vehicle in view of various needs of a user of the work vehicle.SOLUTION: In a rice planter, a fertilization amount of a variable fertilization device 200 is adjusted by using a pole screw 210 stored in a pole screw case 220. A motor 250 for rotating the pole screw 210 is provided, and the pole screw 210 projects from the pole screw case 220. A housing 260 is provided into which a pole screw tip 211 of the projected pole screw 210 is inserted. A pole screw cover 230 for covering a part of the pole screw 210 between the pole screw case 220 and the housing 260 is provided.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a work vehicle such as a rice transplanter. [Background technology]

[0002] For example, a fertilizer applicator having a storage hopper for storing fertilizer, a dispensing device for dispensing a set amount of fertilizer supplied from the storage hopper, a fertilizer amount adjusting device for adjusting the amount of fertilizer dispensed from the dispensing device, a fertilizer amount setting device for setting the amount of fertilizer to be applied to the fertilizer amount adjusting device, a swing arm for operating the dispensing device by swinging on a swing fulcrum, and a power supply device connected to one end of the swing arm and for supplying power to the swing arm, a traveling vehicle body on which the fertilizer applicator is mounted, a fertilizer amount adjusting motor that is driven based on instructions from the fertilizer amount setting device, and the traveling vehicle body. and a tilt detection sensor that detects the tilt in the fore-and-aft direction of the oscillating arm, the other end of which is connected to the payout device, and the position of the oscillating fulcrum is automatically changed by the fertilizer amount adjustment device in accordance with the setting of the fertilizer amount setting device.When the tilt detection sensor detects that the vehicle body is in a front-upward tilt state of more than a predetermined angle after work in the field has been completed, a work vehicle such as a rice transplanter is known that activates the fertilizer amount adjustment motor to move the position of the oscillating fulcrum to a standard position (see, for example, Patent Document 1).

[0003] The fertilizer amount adjustment device has a fertilizer amount adjustment motor, a ball screw rotated by the fertilizer amount adjustment motor, and a ball nut threaded onto the ball screw, and the swing fulcrum is fixed to the ball nut. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2017-99418 Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, the inventor believes that the trend of implementing convenient functions one after another in work vehicles such as rice transplanters will continue to accelerate, taking into consideration the various needs of work vehicle users.

[0006] However, the inventors have noticed that conventional work vehicles are not necessarily easy to use when using convenient functions.

[0007] More specifically, the present inventors have noticed that, for example, the fingers of an operator may be injured when they come into contact with the driving member.

[0008] SUMMARY OF THE INVENTION In consideration of the above-mentioned problems inherent in the prior art, the present invention has an object to provide a work vehicle that can improve usability. [Means for solving the problem]

[0009] The first aspect of the present invention is a work vehicle equipped with a variable fertilizer applicator (200), The amount of fertilizer applied by the variable fertilizer application device (200) is adjusted by using a ball screw (210) housed in a ball screw case (220) that changes the position of the swing fulcrum of the swing arm for operating the delivery device that delivers fertilizer. A motor (250) is provided to rotate the ball screw (210), The ball screw (210) protrudes from the ball screw case (220), a housing (260) into which the ball screw tip (211) of the protruding ball screw (210) is inserted; A ball screw cover (230) is provided to cover the portion of the ball screw (210) between the ball screw case (220) and the housing (260), The housing (260) functions as a bearing for the ball screw (210) and accommodates a ball screw gear (291) attached near the tip (211) of the ball screw. a motor casing (270) that houses a motor (250), a motor gear (293) that is rotated by a driving force generated by the motor (250), and an intermediate gear (292) that is provided between the motor gear (293) and a ball screw gear (291); A motor casing plate (271) attached to the outer wall of the motor casing (270) is detachably attached to the housing (260), A boss (262) into which a bolt (272) for detachably attaching the motor casing plate (271) to the housing (260) is inserted is provided on the outer wall of the housing (260), Two ribs (263) for reinforcing the boss (262) are formed on the outer wall of the housing (260) from the boss (262). The outer wall of the housing (260) in the valley between the two ribs (263) is formed to slope downward from the boss (262). In the second aspect of the present invention, an L-shaped plate (110) is provided so that the L-shaped horizontal portion can be attached to the horizontal portion of the vehicle body (100), The ball screw cover (230) is attached to the L-shaped vertical part of the L-shaped plate (110), The ball screw cover (230) is in an inverted L shape. The upper portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered with an inverted L-shaped horizontal portion of the ball screw cover (230), The lower portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered by the L-shaped horizontal portion of the L-shaped plate (110), One side portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered with an inverted L-shaped vertical portion of the ball screw cover (230), This is a first work vehicle of the present invention, characterized in that a ball screw rotation sensor (240) for detecting the rotation of the ball screw (210) for fertilizer adjustment is disposed on the other side of the ball screw (210) between the ball screw case (220) and the housing (260). First invention related to the present invention is a work vehicle equipped with a variable fertilizer application device (200), The ball screw (210) housed in the ball screw case (220) is used to adjust the amount of fertilizer applied by the variable fertilizer application device (200). A motor (250) is provided to rotate the ball screw (210), The ball screw (210) protrudes from the ball screw case (220), a housing (260) into which the ball screw tip (211) of the protruding ball screw (210) is inserted; The work vehicle is characterized by being provided with a ball screw cover (230) that covers the portion of the ball screw (210) between the ball screw case (220) and the housing (260).

[0010] Second invention related to the present invention The ball screw case (220) is attached to an L-shaped plate (110) erected on the vehicle body (100), The ball screw cover (230) is attached to the L-shaped plate (110) together with the ball screw case (220) by fastening together with the bolts (111). First invention related to the present invention It is a work vehicle.

[0011] Third invention related to the present invention The housing (260) functions as a bearing for the ball screw (210) and accommodates a ball screw gear (291) attached near the tip (211) of the ball screw. a motor casing (270) that houses a motor (250), a motor gear (293) that is rotated by a driving force generated by the motor (250), and an intermediate gear (292) that is provided between the motor gear (293) and a ball screw gear (291); The motor casing plate (271) attached to the outer wall of the motor casing (270) is detachably attached to the housing (260). The first or second invention related to the present invention It is a work vehicle.

[0012] The fourth invention related to the present inventiona ball screw rotation sensor (240) for detecting the rotation of the ball screw (210) is attached to the housing (260) so as to be arranged in parallel with the ball screw (210); The ball screw cover (230) covers the part of the ball screw (210) opposite the ball screw rotation sensor (240), The ear members (261) are formed from the housing (260) toward the ball screw cover (230), A motor cover (280) is provided to cover the motor casing (270) and the motor casing plate (271). Third invention related to the present invention It is a work vehicle.

[0013] Fifth Invention Related to the Present Invention The bolts (273) that attach the motor casing plate (271) to the outer wall of the motor casing (270) are located inside the bolts (272) that detachably attach the motor casing plate (271) to the housing (260) with respect to the rotation axis of the intermediate gear (292). A work vehicle according to a fourth aspect of the present invention is.

[0014] The sixth invention related to the present invention a boss (262) into which a bolt (272) for detachably attaching the motor casing plate (271) to the housing (260) is inserted is provided on the outer wall of the housing (260), A rib (263) for reinforcing the boss (262) is formed from the boss (262) toward the outer wall of the housing (260). Fifth Invention Related to the Present Invention It is a work vehicle.

[0015] Seventh Invention Related to the Present Invention Within a certain range from the perimeter of the field, which can be confirmed by map data, the set amount of fertilizer is reduced at a certain rate. This is a work vehicle characterized in that the rate of fat reduction is changeable.

[0016] Eighth invention related to the present inventionIn the area outside the periphery of the field where the data setting of the work instruction value is not included in the map data, the outside field area is displayed on the monitor (500) of the machine. Seventh Invention Related to the Present Invention It is a work vehicle.

[0017] Ninth invention related to the present invention The actual work instruction values ​​are displayed together with the work instruction values ​​based on the map-based plan on the monitor (500) of the machine. The display of the actually applied work instruction values ​​and corresponding fertilizer settings is activated. Eighth invention related to the present invention It is a work vehicle. [Effects of the Invention]

[0018] The present invention can improve usability. First invention related to the present invention This makes it possible to improve usability.

[0019] Second invention related to the present invention Therefore, First invention related to the present invention In addition to the above effect, the configuration can be simplified.

[0020] Third invention related to the present invention Therefore, The first or second invention related to the present invention In addition to the above effects, it is possible to further improve usability.

[0021] The fourth invention related to the present invention Therefore, Third invention related to the present invention In addition to the above effect, it is possible to improve convenience.

[0022] Fifth Invention Related to the Present Invention Therefore, The fourth invention related to the present invention In addition to the above effect, it is possible to reduce the burden on the worker.

[0023] The sixth invention related to the present invention Therefore, Fifth Invention Related to the Present Invention In addition to the above effect, the configuration can be further simplified.

[0024] Seventh Invention Related to the Present Invention This makes it possible to improve usability.

[0025] Eighth invention related to the present invention Therefore, Seventh Invention Related to the Present Invention In addition to the above effect, it is possible to improve convenience.

[0026] Ninth invention related to the present invention Therefore, Eighth invention related to the present invention In addition to the above effects, it is possible to further improve convenience. [Brief explanation of the drawings]

[0027] [Figure 1] An explanatory diagram of a rice transplanter according to an embodiment of the present invention. [Figure 2] (a) An explanatory diagram (part 1) of the vicinity of a variable fertilization device of a rice transplanter according to an embodiment of the present invention, (b) An explanatory diagram (part 2) of the vicinity of a variable fertilization device of a rice transplanter according to an embodiment of the present invention. [Figure 3] (a) An explanatory diagram (part 3) of the vicinity of the variable fertilizer application device of the rice transplanter according to the embodiment of the present invention, (b) An explanatory diagram (part 4) of the vicinity of the variable fertilizer application device of the rice transplanter according to the embodiment of the present invention. [Figure 4] 5 is an explanatory diagram of the vicinity of the variable fertilization device of the rice transplanter according to the embodiment of the present invention. [Figure 5] (a) An explanatory diagram (part 6) of the vicinity of the variable fertilizer application device of the rice transplanter according to the embodiment of the present invention, (b) An explanatory diagram (part 7) of the vicinity of the variable fertilizer application device of the rice transplanter according to the embodiment of the present invention. [Figure 6] FIG. 8 is an explanatory diagram of the vicinity of the variable fertilizer application device of the rice transplanter according to the embodiment of the present invention. [Figure 7] 9 is an explanatory diagram of the vicinity of the variable fertilization device of the rice transplanter according to the embodiment of the present invention. [Figure 8] An explanatory diagram of the vicinity of the monitor of the rice transplanter according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0028] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

[0029] Similarly, some components may not be shown in the drawings, or may be shown in perspective or in simplified form.

[0030] While explaining the operation of the rice transplanter of this embodiment, a work vehicle operation control method according to an invention related to the present invention, which is realized by the controller 1002 and the like, will also be explained.

[0031] The rice transplanter of this embodiment is a work vehicle equipped with a variable fertilizer applicator 200, and is a specific example of the work vehicle of the present invention.

[0032] (1) First, the configuration and operation of an embodiment of the rice transplanter of the present invention will be specifically described, primarily with reference to Figures 1, 2(a) and 2(b), 3(a) and 3(b), 4, 5(a) and 5(b), 6, and 7.

[0033] Here, Figure 1 is an explanatory diagram of a rice transplanter according to an embodiment of the present invention, and Figures 2(a) and 2(b), 3(a) and 3(b), 4, 5(a) and 5(b), 6, and 7 are explanatory diagrams (parts 1 to 9) of the vicinity of the variable fertilization device 200 of a rice transplanter according to an embodiment of the present invention.

[0034] Using a satellite positioning module that outputs positioning data corresponding to the position of the vehicle body 100 based on satellite signals received by a satellite antenna 1001, a controller 1002 controls the amount of fertilizer application in conjunction with work plan map data stored in a memory 1003, into which work instruction values ​​set for each mesh-divided section associated with the work site are input.

[0035] The variable fertilizer applicator 200 functions as a work machine mounted on a vehicle body 100 that travels on a work site in accordance with work instruction values.

[0036] The amount of fertilization by the variable fertilization device 200 is adjusted by utilizing the ball screw 210 housed in the ball screw case 220. A motor 250 that rotates the ball screw 210 is provided.

[0037] The swing fulcrum position of the swing arm (not shown) for delivering fertilizer from the storage hopper in the amount set as the work instruction value is automatically changed under the control of the controller 1002 by utilizing a ball nut (not shown) screwed into the ball screw case 220 which is rotated by the motor 250.

[0038] The ball screw 210 protrudes from the ball screw case 220. A housing 260 is provided into which a ball screw tip 211 of the protruding ball screw 210 is inserted. A ball screw cover 230 is provided to cover the portion of the ball screw 210 between the ball screw case 220 and the housing 260.

[0039] In the fertilization adjustment unit, a ball screw cover 230 is attached to cover the portion for connecting the ball screw 210 to the fertilization adjustment motor unit incorporating the motor 250. By covering the ball screw 210, which is a hexagonal drive shaft, the operator's fingers are protected from injury due to contact with the ball screw 210, which is the drive member, thereby improving safety.

[0040] The ball screw case 220 is attached to an L-shaped plate 110 that is erected on the vehicle body 100 .

[0041] In the fertilization amount adjustment unit of a so-called map database-linked type fertilizer applicator, a ball screw cover 230 that covers the ball screw 210 at the unit connection point is attached to a frame for mounting the variable fertilization device 200 on the vehicle body 100.

[0042] The ball screw cover 230 is attached to the L-shaped plate 110 together with the ball screw case 220 by means of bolts 111 .

[0043] Ball screw cover 230 is attached to L-shaped plate 110 by fastening together at two points on the top, and notch 1007 into which bolt 111 for fastening together is inserted is shaped like a bent inverted T-shape. By simply slightly loosening and then tightening the nut with the disc spring of bolt 111, ball screw cover 230 can be easily attached from above by inserting it downward into notch 1007, so ball screw cover 230 can be attached without having to completely remove the nut, which can be time-consuming.

[0044] The housing 260 functions as a bearing for the ball screw 210 and also houses a ball screw gear 291 attached near the tip 211 of the ball screw.

[0045] Although the points where the intermediate gear 292 and the motor gear 293 are connected are quite close to each other in a narrow space, the housing 260 also functions as a ball screw rotation bearing for the ball screw 210, so misalignment of the ball screw rotation axis is suppressed.

[0046] A motor casing 270 is provided to house a motor 250, a motor gear 293 that is rotated by the driving force generated by the motor 250, and an intermediate gear 292 that is provided between the motor gear 293 and the ball screw gear 291.

[0047] In reality, the motor gear 293 is implemented as a gear unit that combines several gears such as bevel gears, and in such an embodiment, the motor drive transmission shaft 1006 is also an assembly of several gear shafts.

[0048] A motor casing plate 271 attached to the outer wall of the motor casing 270 is detachably attached to the housing 260 .

[0049] The motor casing plate 271 to which the motor 250 is attached can be attached to the housing 260 by retrofitting the components, without removing the motor 250. In a layout that involves a mixture of various components such as the ball screw rotation shaft 1004 of the ball screw 210 to which the ball screw gear 291 is attached, the angle sensor rotation shaft 1005 of the ball screw rotation sensor 240, and the motor drive transmission shaft 1006 to which the intermediate gear 292 is attached, the assembly work can be easily performed while checking the internal gear meshing state of the fertilizer application adjustment unit.

[0050] A ball screw rotation sensor 240 that detects the rotation of the ball screw 210 is attached to the housing 260 so as to be arranged in parallel with the ball screw 210. A ball screw cover 230 covers the portion of the ball screw 210 opposite the ball screw rotation sensor 240.

[0051] The area opposite the ball screw rotation sensor 240, which is an angle sensor, and the area above the shaft of the ball screw 210 are covered by the ball screw cover 230, which ensures ease of work such as sensor maintenance while also improving safety by covering areas where an operator's fingers are likely to unintentionally enter.

[0052] Ear members 261 are formed from the housing 260 toward the ball screw cover 230 .

[0053] The ear members 261 for covering the portions of the ball screw 210 that are not covered by the ball screw cover 230 are additionally formed in the manufacturing process of the housing 260. By utilizing the excellent processability of the fertilizer application amount adjustment unit case and covering the portions where an operator's fingers are likely to unintentionally enter, safety can be improved.

[0054] A motor cover 280 is provided to cover the motor casing 270 and the motor casing plate 271 .

[0055] The bolts 273 that attach the motor casing plate 271 to the outer wall of the motor casing 270 are located inside the bolts 272 that detachably attach the motor casing plate 271 to the housing 260, with the rotation axis of the intermediate gear 292 as the reference.

[0056] The positions of the bolts 272 inserted into the assembly holes for attaching the motor casing plate 271 to the housing 260 are outside the positions of the bolts 273 inserted into the assembly holes for attaching the motor casing plate 271 to the motor casing 270, so that the attachment work is often easy to perform while viewing from the so-called motor hole, where the rotation center of the motor drive transmission shaft 1006 and the like can be seen. The above-mentioned post-attachment of the components is realized with such a simple configuration, and the assembly work is certainly facilitated.

[0057] Bosses 262 into which bolts 272 are inserted to detachably attach a motor casing plate 271 to the housing 260 are provided on the outer wall of the housing 260. Ribs 263 that reinforce the bosses 262 are formed from the bosses 262 toward the outer wall of the housing 260.

[0058] Bosses 262 and ribs 263 are added to the two upper locations of the housing 260, and bolt 272 is fastened using flat button members and nuts. The lower location of the housing 260 is bolted using case tapping. The above-described retrofitting of components is achieved with such a simple configuration, which reliably simplifies the assembly process. Even if the motor casing plate 271 overlaps the motor 250 when viewed from the front, the flat button member of the bolt 272 can be easily attached to the housing 260 at these two upper locations, so the shape of the rib 263 can be minimal.

[0059] Two ribs 263 that function as outer wall ribs are added to each of the boss surfaces of the two bosses 262. Although the bosses 262 have a shape that protrudes outward compared to the outer shape of the case of the housing 260, the additional provision of the ribs 263 ensures the strength required for assembling the motor.

[0060] A downward slope is formed in the rib valley between two ribs 263 that function as outer wall ribs toward case joint 1008. With regard to fertilizer applicator-related parts, liquids such as water or fertilizer may accumulate and cause corrosion of the product, but such liquids flow down through the rib valley between ribs 263 to case joint 1008, so they hardly accumulate and corrosion of the product is suppressed.

[0061] Of course, a single rib 263 functioning as an outer wall rib may be added to the center of each of the boss surfaces of the two bosses 262.

[0062] (2) Next, the configuration and operation of the rice transplanter according to the embodiment of the present invention will be described in more detail.

[0063] (2a) First, the manner in which so-called map data is used will be specifically explained.

[0064] Within a certain range from the perimeter of the field, which can be confirmed using map data, the set amount of fertilizer is reduced at a fixed rate.

[0065] For example, in a rice transplanter that can perform variable fertilization based on map data, the set amount of fertilizer is reduced by a fixed percentage within a certain range from the perimeter of the field that can be confirmed by the map data.Since lodging is likely to occur along the edges of rice paddies, reducing fertilizer near the perimeter of the field can reduce lodging.

[0066] In rice transplanters that can perform variable fertilization based on map data, ultrasonic sensors measure field depth and record the depth data for each mesh in the map data. For deep areas, an alarm is output when plowing and planting the following year, preventing sinking, also known as "stacking." Because the field depth can be seen on the map in advance, sinking can be prevented and work efficiency improved.

[0067] In rice transplanters that can perform variable fertilization based on map data, ultrasonic sensors measure field depth, record the depth data for each mesh in the map data, and automatically activate the differential lock in advance when plowing and planting the following year. By automatically activating the differential lock in advance, sinking can be prevented and work efficiency improved.

[0068] The rate of weight loss can be varied.

[0069] For example, in the above-described embodiment, the rate of fertilizer reduction can be changed to any value. By changing the fertilizer reduction rate according to the conditions of the field, fertilization appropriate for each field can be performed.

[0070] In the above-described embodiment, it is possible to change the distance from the periphery of the field where fertilizer reduction is performed to any value. By being able to specify the range of fertilizer reduction according to the conditions of the field, fertilization that is appropriate for the field can be performed.

[0071] In a rice transplanter that can perform variable fertilization based on map data, an ultrasonic sensor can be used to measure the field depth, and the amount of fertilizer set in the map data can be reduced by a certain percentage in accordance with the field depth. By reducing the amount of fertilizer set in the map data depending on the field depth, fertilization appropriate to the field can be performed, which is expected to reduce lodging and improve quality.

[0072] In a rice transplanter that can perform variable fertilization based on map data, an ultrasonic sensor can be used to measure the field depth, and the amount of fertilizer set in the map data can be reduced proportionally to the field depth. By reducing the fertilizer in proportion to the depth, it is possible to apply fertilizer that is more suited to the field, which can promote quality improvement.

[0073] In a rice transplanter that can perform variable fertilization based on map data, a fertility sensor can measure fertility and, in conjunction with the fertility level, reduce the fertilizer amount set in the map data by a certain percentage. By reducing the fertilizer amount set in the map data based on the fertility level, fertilization appropriate to the field can be performed, which is expected to reduce lodging and improve quality.

[0074] In a rice transplanter that can perform variable fertilization based on map data, a fertility sensor can measure fertility, and the amount of fertilizer set in the map data can be reduced proportionally to the fertility. By reducing the amount of fertilizer set in the map data in proportion to the fertility, fertilization appropriate to the field can be performed, which is expected to reduce lodging and improve quality.

[0075] In rice transplanters that can perform variable fertilization based on map data, ultrasonic sensors measure field depth and record the depth data for each mesh in the map data. By recording the depth in the map data, field records are enriched.

[0076] In a rice transplanter that can perform variable fertilization based on map data, an ultrasonic sensor measures the field depth, and the depth data is recorded for each mesh in the map data. The following year, when the tractor plows, the rotary tillage depth is changed based on the depth data. The depth data can be used to promote leveling of the plow pan rather than the field surface, improving field conditions and work efficiency.

[0077] (2b) Next, a specific description will be given of an aspect in which the so-called Zarbio variable fertilization work switching is used, mainly with reference to Fig. 8, which is an explanatory diagram of the vicinity of the main monitor 500 of the rice transplanter according to the embodiment of the present invention. This aspect is intended to supplement the details of the data display conditions in an aspect in which the Zarbio compatible monitor display, which will be described later, is used.

[0078] In FIG. 8, a grayed-out upper frame is displayed at the top, and a selecting frame is displayed at the bottom.

[0079] In the map-linked compatible variable fertilization rice transplanter, when the app running flag for machine recognition is 0, that is, when the variable fertilization app is not running on the tablet and work information cannot be properly recognized, a mode can be considered in which a message "No terminal connection" is displayed on the machine monitor 500 using an icon or the like. The current variable fertilization work status can be displayed on the machine monitor 500.

[0080] In the map-linked variable fertilization rice transplanter, when the map loaded flag is 0, that is, when the fertilization plan data has not been loaded into the tablet, a message "Map not set" can be displayed on the machine monitor 500. The current variable fertilization work status can be displayed on the machine monitor 500.

[0081] In areas outside the periphery of the field where no data setting for work instruction values ​​is included in the map data, the area outside the field is displayed on the machine monitor 500.

[0082] For example, in a map-linked compatible variable fertilizer rice transplanter, when the calculated setting value number for the current location is a value other than 1 to 5, that is, when data for fertilization setting values ​​of 1 to 5, i.e., data indicating which of 1 to 5 the fertilization setting type is, is not assigned to the current location because the current location is outside the work area, a possible mode is to display a message "outside setting area" on the machine monitor 500. The current variable fertilization work status can be displayed on the machine monitor 500.

[0083] In the map-linked variable fertilization rice transplanter, when none of the above cases apply, that is, when the variable fertilization app is running on the tablet, the fertilization plan data has been loaded into the tablet, and the fertilization setting value data of 1 to 5 has been assigned to the current location, it is possible to have the message "Rice planting in progress" displayed on the machine monitor 500. The current status of variable fertilization work can be displayed on the machine monitor 500.

[0084] (2c) Next, a specific description will be given of an embodiment in which a so-called Zarbio compatible monitor display is used.

[0085] The actually applied work instruction values ​​are also displayed together with the work instruction values ​​based on the map-based plan on the monitor 500 of the main unit.

[0086] For example, in a map-linked variable fertilizer rice transplanter, one possible mode is to display fertilizer setting values ​​1 to 5 based on a map-based plan all at once on the same screen of the monitor unit of the machine monitor 500. After loading pre-planned fertilizer settings, the fertilizer settings can be checked all at once on one screen, unlike modes in which the only means for viewing the settings is a tablet.

[0087] In the above-described embodiment, when the variable fertilization mode cannot be switched due to regulations and an attempt is made to change the setting by operating a jog dial or the like, a pop-up message such as "Please switch modes after completing the current operation" may be displayed to notify the operator that the setting cannot be switched. This is expected to solve the problem of map-based variable fertilization operation or real-time variable fertilization operation being switched midway through even though these modes have already begun, making it difficult to understand what the recorded work performance relates to. The operator can be notified that the variable fertilization mode cannot be switched after the operation has begun.

[0088] A possible implementation of a map-linked variable fertilization rice transplanter is to provide a screen on the machine monitor 500 that allows the operator to change a correction value to increase or decrease the fertilizer application rate by a fixed percentage relative to the amount of fertilizer applied during map-linked fertilization. While a desire to increase or decrease the amount of fertilization during work according to a pre-planned schedule arises, it is often cumbersome to re-create the work plan on a computer, input the data, and then load the data into the rice transplanter. While it is possible to individually set the fertilization settings (1 through 5) using a tablet or monitor without creating a pre-plan, the hassle of manually adjusting each of the five data points is unavoidable. This eliminates the potential for losing track of the original data during individual settings, potentially resulting in inappropriate overall fertilization. Increasing or decreasing the settings by a uniform percentage overall is also expected to eliminate the hassle of changing settings and prevent the original plan from becoming unclear.

[0089] In the above-described aspect, it is conceivable that fertilization setting values ​​that are applied separately from the fertilization setting values ​​1 to 5 based on the map-based plan may also be displayed on the same screen. In cases where the work of fertilization setting values ​​1 to 5 is not applied, such as when location information cannot be read or when the user is outside the field, the normal setting that is often implemented in the product is a setting based on the customary fertilizer amount, but fertilization work is performed with a fertilization setting that is not one of the fertilization setting values ​​1 to 5, and the currently applied fertilization setting value cannot be determined unless the user transitions to a separate dedicated setting screen.

[0090] The display of the actually applied work instruction values ​​and corresponding fertilization settings is activated.

[0091] For example, in the above-mentioned embodiment, it is conceivable that during map-linked fertilization work, it is determined which of the fertilization setting values ​​1 to 5 is currently being used, and the corresponding fertilization setting is activated by displaying it in orange. This is expected to solve the problem of it being difficult to know which setting fertilization is being used.

[0092] In the map-linked compatible variable fertilizer rice transplanter, an embodiment is possible in which an icon is provided to display the current work status of the map-linked fertilization work on the machine monitor 500. The work status of the current map-linked fertilization work can be confirmed on the machine monitor 500.

[0093] In the above-described embodiment, when the tablet is not connected, a "terminal not connected" icon may be displayed. The operator can be informed that map-linked fertilization is not possible because the tablet is not connected.

[0094] In the above-described embodiment, if the loading of the map data by the tablet operation is not completed, a "map not set" icon may be displayed. This notifies the operator that the map data has not been loaded and map-linked fertilization is not possible.

[0095] In the above-described embodiment, when the vehicle body 100 is located in an area that is not assigned a setting value from 1 to 5, such as an area outside the set field, an icon for "outside set area" can be displayed. When the vehicle body 100 is located outside the area, for example, there is no reference data for fertilization settings, so the operator can be informed that map-linked fertilization is not possible.

[0096] In the above-described embodiment, a possible embodiment is one in which an icon "Rice planting in progress" is displayed when the tablet is connected and the work area indication can be read, the map data has been loaded, and the work area indication value is one of 1 to 5. This allows the worker to be notified that the map-linked fertilization has been completed by satisfying each of the conditions.

[0097] (3) Next, the configuration and operation of the rice transplanter according to the embodiment of the present invention will be described in more detail.

[0098] (3a) First, we will specifically explain how a soil fertility estimation method that is expected to be applied to so-called robotic rice transplanters is used.

[0099] Soil fertility is estimated from the state of offspring growth after harvesting. Soil fertility is estimated by looking at aerial photographs taken a certain amount of time after harvesting to see whether offspring growth has appeared, or, if it has, by looking at the extent of the growth. By utilizing data throughout rice cultivation, waste and unevenness can be reduced.

[0100] Soil fertility can be estimated from the way weeds grow before plowing, and the level of soil fertility can be estimated by looking at the way weeds grow from aerial photographs.

[0101] Soil fertility estimated from the weed growth pattern before plowing may be used for variable fertilization.

[0102] Soil fertility estimated from the growth of weeds after rice planting may be used for intermediate management in rice cultivation.

[0103] (3b) Next, a specific example of utilizing so-called variable fertilization mode switching will be described.

[0104] In a map-linked variable fertilization rice transplanter, when the field entry / exit judgment on the variable fertilization mode change screen indicates that the field has been entered between the start and end of rice planting, it is possible to consider a mode in which the operation of switching between real-time variable fertilization mode and map-based variable fertilization mode by operating the jog dial on the machine monitor 500 is restricted. This is expected to solve the problem of switching between map-based variable fertilization mode and real-time variable fertilization mode even though the mode has already started, making it difficult to understand what the recorded work performance relates to. It is possible to prevent switching of variable fertilization mode after work has started.

[0105] In the above-described embodiment, when the operation of switching between the real-time variable fertilization mode and the map-based variable fertilization mode is restricted by operating the jog dial on the machine monitor 500, a variable fertilization mode restriction detection flag can be set and a message indicating that operation has been restricted can be displayed on the machine monitor 500. This is expected to solve the problem of the map-based variable fertilization operation or real-time variable fertilization operation being switched midway through even though these modes have already begun, making it difficult to understand what the recorded work performance relates to. The operator can be informed that the variable fertilization mode cannot be switched after work has started.

[0106] In the above-described aspect, the variable fertilization mode restriction detection flag may be reset by erasing the display when transitioning to a screen other than the variable fertilization mode change screen. After leaving the screen, if an attempt is made to switch between the real-time variable fertilization mode and the map-based variable fertilization mode again on the variable fertilization mode change screen, the display in the above-described aspect may be displayed again.

[0107] In the above-described embodiment, when the field entry / exit determination on the variable fertilization mode change screen indicates entry into the field between the start and end of rice planting, and the tablet is in a disconnected state, pressing and holding the green button for three seconds on the monitor 500 temporarily releases the restriction on changing the variable fertilization mode. In the conventional real-time variable fertilization mode, variable fertilization mode can be started and ended simply by operating the monitor, even without a tablet. Therefore, even if the tablet is turned off during operation, data cannot be recorded, but variable fertilization operation can continue. However, in the map-linked variable fertilization mode, fertilization information is sent from the tablet, so variable fertilization operation cannot continue if the tablet is turned off. Because variable fertilization mode switching is restricted by the above-described embodiment during the period when variable fertilization operation is being performed between the start and end of rice planting, this is expected to solve the problem of not being able to take workarounds, such as ending operation after switching to real-time variable fertilization operation or performing fertilization operation in real-time variable fertilization mode thereafter. In an emergency, it is possible to switch from map-linked variable fertilization mode to real-time variable fertilization mode.

[0108] In the above-described aspect, when the restriction on changing the variable fertilization mode is temporarily lifted, a message to that effect may be displayed on the machine monitor 500. The operator can be notified that the restriction has been lifted with a message such as "Switching modes while not linked may cause the app to function normally."

[0109] In the above-described aspect, the restriction on changing the variable fertilization mode can be released by resetting the restriction again when the screen changes to a screen other than the variable fertilization mode change screen. After leaving the screen, if an attempt is made to switch again between the real-time variable fertilization mode and the map-based variable fertilization mode on the variable fertilization mode change screen, the restriction in the above-described aspect can be applied again.

[0110] The program of the invention related to the present invention is a program for causing a computer to execute all or part of the steps (or processes, operations and actions, etc.) of the work vehicle operation control method of the invention related to the present invention described above, and is a program that operates in cooperation with a computer.

[0111] Furthermore, the recording medium of the invention related to the present invention is a recording medium on which a program is recorded for causing a computer to execute all or some of the operations of all or some of the steps (or processes, operations and actions, etc.) of the work vehicle operation control method of the invention related to the present invention described above, and is a computer-readable recording medium in which the read program is used in cooperation with a computer.

[0112] It should be noted that the above-mentioned "some steps (or processes, operations, actions, etc.)" means one or some steps among the plurality of steps.

[0113] Furthermore, the above-mentioned "operations of steps (or processes, operations, actions, etc.)" means the operations of all or part of the above-mentioned steps.

[0114] Furthermore, one form of use of the inventive program related to the present invention may be a form in which it is transmitted through a transmission medium such as the Internet, light, radio waves, or sound waves, read by a computer, and operates in cooperation with the computer.

[0115] The recording medium also includes a ROM (Read Only Memory).

[0116] Furthermore, a computer is not limited to pure hardware such as a CPU (Central Processing Unit), but may also include firmware, an OS (Operating System), and even peripheral devices.

[0117] As described above, the configuration of the present invention may be realized in software or hardware. [Industrial Applicability]

[0118] The work vehicle of the present invention can improve usability and is useful for use as a work vehicle such as a rice transplanter. [Explanation of symbols]

[0119] 100 body 110 L-shaped plate 111 volts 200 Variable Fertilizer Applicator 210 Ball screw 211 Ball screw tip 220 Ball screw case 230 Ball screw cover 240 Ball screw rotation sensor 250 motor 260 Housing 261 Ear parts 262 Boss 263 Ribs 270 Motor casing 271 Motor casing plate 272, 273 volts 280 motor cover 291 Ball screw gear 292 Intermediate gear 293 Motor Gear 500 Main unit monitor 1001 Satellite Antenna 1002 Controller 1003 memory 1004 Ball screw rotating shaft 1005 Angle sensor rotation axis 1006 Motor drive transmission shaft 1007 Notch 1008 Case joint

Claims

1. A work vehicle equipped with a variable fertilizer application device (200), The amount of fertilizer applied by the variable fertilizer application device (200) is adjusted by utilizing a ball screw (210) housed in a ball screw case (220) that changes the position of the swing fulcrum of the swing arm for operating a delivery device that delivers fertilizer. A motor (250) is provided to rotate the ball screw (210), The ball screw (210) protrudes from the ball screw case (220), A housing (260) is provided into which the ball screw tip (211) of the protruding ball screw (210) is inserted; A ball screw cover (230) is provided to cover a portion of the ball screw (210) between the ball screw case (220) and the housing (260), The housing (260) functions as a bearing for the ball screw (210) and accommodates a ball screw gear (291) attached near the tip (211) of the ball screw. A motor casing (270) is provided to accommodate a motor (250), a motor gear (293) rotated by a driving force generated by the motor (250), and an intermediate gear (292) provided between the motor gear (293) and a ball screw gear (291), A motor casing plate (271) attached to the outer wall of the motor casing (270) is detachably attached to the housing (260), A boss (262) into which a bolt (272) for detachably attaching the motor casing plate (271) to the housing (260) is inserted is provided on the outer wall of the housing (260), Two ribs (263) for reinforcing the boss (262) are formed on the outer wall of the housing (260) from the boss (262), A work vehicle characterized in that an outer wall portion of a housing (260) in a rib valley between two ribs (263) is formed to slope downward from a boss (262).

2. An L-shaped plate (110) is provided so that the L-shaped horizontal portion can be attached to the horizontal portion of the vehicle body (100), The ball screw cover (230) is attached to the L-shaped vertical part of the L-shaped plate (110), The ball screw cover (230) has an inverted L-shape. The upper portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered with an inverted L-shaped horizontal portion of the ball screw cover (230), The lower portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered with the L-shaped horizontal portion of the L-shaped plate (110), One side portion of the ball screw (210) between the ball screw case (220) and the housing (260) is covered with an inverted L-shaped vertical portion of the ball screw cover (230); The work vehicle according to claim 1, characterized in that a ball screw rotation sensor (240) for detecting the rotation of the ball screw (210) for fertilizer adjustment is arranged on the other side portion of the ball screw (210) between the ball screw case (220) and the housing (260).

Images