Work vehicles

Abstract

To solve the problem with a conventional work vehicle such as a rice planting machine that its convenient functions are not necessarily user-friendly.SOLUTION: A work vehicle includes: an engine 210; an integrated type starter generator 510 that functions as a starter of the engine 210; a high-voltage battery 520 for high voltage; a low-voltage battery 530 for low voltage compared to the high voltage; and a work machine 900. The integrated type starter generator 510 charges the high-voltage battery 520 and the low-voltage battery 530 by generating power by the driving of the engine 210. The work machine 900 is a rice planting machine driven using the high-voltage battery 520.SELECTED DRAWING: Figure 4

Description

[Technical field]

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

[0002] 2. Description of the Related Art A work vehicle equipped with an engine such as a rice planter is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2004-222604 A Summary of the Invention [Problem to be solved by the invention]

[0004] By the way, the inventor of the present invention has been considering various needs of work vehicle users and has developed a battery I believe that the trend of implementing convenient functions one after another into such work vehicles will continue to accelerate.

[0005] However, for a work vehicle such as the conventional rice planter described above, the battery The present inventors have noticed that when a convenient function is used, the convenience of charging the battery is not always good.

[0006] SUMMARY OF THE PRESENT DISCLOSURE In consideration of the above-mentioned problems in the conventional technology, the present invention has an object to provide a work vehicle that can improve the usability of the battery in terms of charging. [Means for solving the problem]

[0007] The first aspect of the present invention includes an engine (210); an integrated starter generator (510) that functions as a starter for the engine (210); A high voltage battery (520) for high voltage; a low voltage battery (530) for a low voltage lower than the high voltage; A work machine (900); It is equipped with The integrated starter generator (510) generates electricity by being driven by the engine (210) to charge the high-voltage battery (520) and the low-voltage battery (530); The work machine (900) is a work vehicle that is driven by the high-voltage battery (520).

[0008] (delete)

[0009] The second aspect of the present invention is a vehicle equipped with a driving motor (550) that drives the rear wheels (222) using the high-voltage battery (520), The traction motor (550) also functions as a generator, generating electricity by driving the rear wheels (222) to charge the high-voltage battery (520), in the work vehicle of the first invention.

[0010] The third aspect of the present invention is a work machine (900) having a seedling planting device (240), The monitor (701) of the seedling quantity adjusting mechanism (700) of the seedling planting device (240) is driven by the low-voltage battery (530), which is the second work vehicle of the present invention.

[0011] (delete)

[0012] (delete)

[0013] (delete) Effect of the Invention

[0014] The present invention makes it possible to improve the usability of the battery in terms of charging.

[0015] (delete)

[0016] (delete)

[0017] (delete)

[0018] (delete)

[0019] (delete)

[0020] (delete) [Brief description of the drawings]

[0021] [Figure 1] FIG. 1 is a left side view of a rice transplanter according to an embodiment of the present invention. [Diagram 2] A block diagram of a transmission mechanism of a rice transplanter according to an embodiment of the present invention. [Diagram 3] A transmission mechanism diagram of a rice transplanter according to an embodiment of the present invention. [Figure 4] FIG. 1 is an explanatory diagram of an embodiment of the present invention for improving the accuracy of seedling removal by a rice transplanter. [Diagram 5] (a) An explanatory diagram (part 2) of an embodiment of the present invention for improving the accuracy of the amount of seedlings harvested by a rice transplanter, (b) an explanatory diagram (part 3) of an embodiment of the present invention for improving the accuracy of the amount of seedlings harvested by a rice transplanter [Figure 6] (a) An explanatory diagram (part 4) of an embodiment of the present invention for improving the accuracy of the amount of seedlings removed by a rice transplanter, (b) An explanatory diagram (part 5) of an embodiment of the present invention for improving the accuracy of the amount of seedlings removed by a rice transplanter [Figure 7] FIG. 1 is an explanatory diagram of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention (part 1) [Figure 8] (a) An explanatory diagram (part 2) of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention, (b) An explanatory diagram (part 3) of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention [Figure 9] FIG. 4 is an explanatory diagram of the seedling mat counting function of the rice transplanter according to the embodiment of the present invention. [Figure 10](a) An explanatory diagram (part 5) of the seedling mat counting function of the rice transplanter according to the embodiment of the present invention, (b) An explanatory diagram (part 6) of the seedling mat counting function of the rice transplanter according to the embodiment of the present invention [Figure 11] FIG. 7 is an explanatory diagram of the seedling mat counting function of the rice transplanter according to the embodiment of the present invention. [Figure 12] FIG. 8 is an explanatory diagram of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention. [Figure 13] FIG. 9 is an explanatory diagram of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention. [Figure 14] FIG. 10 is an explanatory diagram of the seedling mat number counting function of the rice transplanter according to the embodiment of the present invention. [Figure 15] FIG. 1 is an explanatory diagram of a function of rotating the drug sprayer of a rice transplanter according to an embodiment of the present invention. [Figure 16] (a) An explanatory diagram (part 1) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (b) An explanatory diagram (part 2) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (c) An explanatory diagram (part 3) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (d) An explanatory diagram (part 4) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (e) An explanatory diagram (part 5) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (f) An explanatory diagram (part 6) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention, (g) An explanatory diagram (part 7) of the rice transplanter marker slide function of the rice transplanter of the embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings, an embodiment of the present invention will be described in detail.

[0023] The same applies below, but some components may not be shown in the drawings, or may be shown in a perspective or simplified manner.

[0024] (1) First, mainly with reference to FIG. 1, the configuration and operation of the rice transplanter according to the embodiment of the present invention will be specifically described.

[0025] FIG. 1 is a left side view of a rice transplanter according to an embodiment of the present invention.

[0026] While explaining the operation of the rice transplanter of this embodiment, a work vehicle operation control method of an invention related to the present invention, which is realized by the controller 300 and the like, will also be explained.

[0027] The rice transplanter of this embodiment is a rice transplanter for traveling the vehicle body 100 on a traveling device 220 having a pair of left and right front wheels 221 and rear wheels 222 in accordance with the control of a controller 300 based on manual steering operation or automatic steering operation of a steering device 230, leveling the field with a ground leveling device 260 having a rotor 261 and a float 262, planting seedlings in the field with a seedling planting device 240 having a seedling planting tool 241, and applying fertilizer to the field with a fertilizer application device 250.

[0028] The traveling device 220, the seedling planting device 240, the fertilizer application device 250 and the soil leveling device 260 are driven by power from the engine 210 transmitted via a speed change mechanism having a main speed change device 410 and an auxiliary speed change device 420, which are HSTs.

[0029] The rice transplanter of the present embodiment is a specific example of a work vehicle in the present invention.

[0030] (2) Next, the configuration and operation of the rice transplanter according to the embodiment of the present invention will be described in more detail.

[0031] (2a) With primary reference to Figures 2 and 3, the so-called e-assisted rice transplanter will be specifically described.

[0032] FIG. 2 is a block diagram of the transmission mechanism of the rice transplanter according to the embodiment of the present invention, and FIG. 3 is a line diagram of the transmission mechanism of the rice transplanter according to the embodiment of the present invention.

[0033] The integrated starter generator 510, which functions as a starter for the engine 210, generates power by driving the engine 210, thereby charging a high-voltage battery 520 for a high voltage and a low-voltage battery 530 for a low voltage lower than the high voltage. The work machine 900 is driven by using the high-voltage battery 520.

[0034] A more specific explanation is as follows.

[0035] The driving force generated by the engine 210 is transmitted to the left and right front wheels 221 via a main transmission 410, an auxiliary transmission 420, and a front wheel gear case 430, also called a front gear case.

[0036] The driving force generated by the engine 210 is transmitted to the left rear wheel 222 and the left traction motor 550 via the main transmission 410, the auxiliary transmission 420, the front wheel gear case 430, and the left rear wheel gear case 440, and is also transmitted to the right rear wheel 222 and the right traction motor 550 via the main transmission 410, the auxiliary transmission 420, the front wheel gear case 430, and the right rear wheel gear case 440.

[0037] The left and right traction motors 550 also drive the left and right rear wheels 222, respectively, by using the high-voltage battery 520. The left and right traction motors 550 also function as generators that charge the high-voltage batteries 520 by generating electricity using the rear-wheel driving force transmitted to the left and right rear-wheel gear cases 440, respectively.

[0038] The DC / DC converter 540 is a converter inserted between the high-voltage battery 520 and the low-voltage battery 530 .

[0039] The work implement motor 560 drives the work implement 900 using the high-voltage battery 520 .

[0040] In this way, in a rice transplanter that transmits the power of the internal combustion engine to the running wheels, power may be generated. The running motors are provided independently on the left and right rear wheels, and the ISG motor as a power generating motor generates power using the driving energy of the internal combustion engine, and stores the power in the high-voltage battery and the low-voltage battery. The power stored in the high-voltage battery is mainly used to drive the working motor that drives the planting part, but may also be used to drive the running motors of the left and right rear wheels. The power stored in the low-voltage battery is mainly used to drive electrical equipment such as lights. Electrification and carbon neutrality are also required for agricultural machinery, and since the planting part and wheels can be electrically driven, the engine output can be reduced, and fuel consumption and exhaust gas emissions can be suppressed.

[0041] Of course, the ISG motor also serves as the starter motor that drives the engine.

[0042] In this way, in a rice planting machine as a paddy field working machine that transmits the power of the engine 210, which is an internal combustion engine, to the traveling wheels as a driving force, the driving energy of the internal combustion engine is used via an integrated starter generator 510, also called an ISG (Integrated Starter Generator) motor, which integrates the functions of a driving device having a motor and the like and a charging device having an alternator and the like. That is, the ISG motor is charged using the power of the internal combustion engine, and the ISG motor stores electricity in a high-voltage battery 520 and a low-voltage battery 530. The high-voltage battery 520 is a battery for driving the planting part of the working machine 900 by the working machine motor 560, and the low-voltage battery 530 is a battery for accessory power sources of the working machine 900, etc. Since the planting part is driven electrically, it is often easy to realize a configuration that can reduce engine output and suppress fuel consumption and exhaust gas emissions.

[0043] The integrated starter generator 510 functions as a motor and cooperates with the engine 210 to drive the rear wheels 222 which are driven by the engine 210 .

[0044] In this way, the ISG motor may act as a motor itself, supplementing the driving force of the engine, and the front tires 221 also benefit from the driving force of the motor, albeit through the engine and HST.

[0045] In this manner, assistance of the engine 210 by the integrated starter generator 510 is achieved.

[0046] That is, the rear wheels 222 are driven by a traction motor 550 that utilizes the high-voltage battery 520. The integrated starter generator 510 also serves as a traction motor that supplementarily supplies driving force to the engine 210. The front wheels 221 can also benefit from the driving force of the traction motor via the engine 210 and the main transmission 410.

[0047] The traction motor 550 , which uses the high-voltage battery 520 to drive the rear wheels 222 , also functions as a generator, generating electricity by driving the rear wheels 222 to charge the high-voltage battery 520 .

[0048] In this manner, a driving motor 550 for driving the vehicle is provided using the rear wheel 222 , and the driving motor 550 is driven by the high-voltage battery 520 . The traction motor 550 can not only generate power but also charge the high-voltage battery 520 .

[0049] The working machine 900 has a seedling planting device 240. The monitor 701 of the seedling amount adjustment mechanism 700 of the seedling planting device 240 is driven by using the low-voltage battery 530.

[0050] In this way, the motor drive that supplies the seedling planting power for the seedling planting section of the seedling planting device 240 that plants seedlings in the field and the seedling amount adjustment power for the seedling amount adjustment mechanism 700 are performed using the high voltage battery 520, while the monitor display drive of the monitor 701 for setting the seedling amount adjustment is performed using the low voltage battery 530.

[0051] (2b) With primary reference to Figures 4, 5(a) and 5(b), and 6(a) and 6(b), the improvement of accuracy in seedling removal will be specifically explained.

[0052] Here, Figures 4, 5(a) and 5(b) and 6(a) and 6(b) are explanatory diagrams (parts 1 to 5) of the improvement in the accuracy of seedling removal amount of a rice transplanter according to an embodiment of the present invention.

[0053] The seedling planting device 240 has a seedling mat placement platform 610 that can move in the left-right direction of the vehicle body, a seedling planting main frame 620 that can be raised and lowered and supports the seedling mat placement platform 610 so that it can move in the left-right direction of the vehicle body, and a seedling mat placement platform rail 630 that supports the seedling mat placement platform 610 so that it can move in the left-right direction of the vehicle body. The seedling amount adjustment mechanism 700 has a seedling amount adjustment pivot shaft 710 attached to the seedling planting main frame 620, an actuator unit 720 connected to the seedling amount adjustment pivot shaft 710 that operates using a high-voltage battery 520, and a seedling amount adjustment arm 730 connected to the seedling amount adjustment pivot shaft 710 and driven by the operation of the actuator unit 720. The tip of the seedling amount adjustment arm 730 is fitted into a recess of the seedling mat placement platform rail 630 so that the seedling mat placement platform rail 630 can move up and down by the operation of the actuator unit 720.

[0054] A more specific explanation is as follows.

[0055] The seedling removal amount adjustment arm 730 is rotated by the actuator unit 720, and is driven by the rotation of the seedling removal amount adjustment lever 740 connected to the seedling removal amount adjustment pivot shaft 710, so that the seedling mat placement platform rail 630 can be moved up and down by the rotation of the seedling removal amount adjustment lever 740. The seedling removal amount adjustment arm 730, which is fitted into a recess in the seedling mat placement platform rail 630 formed using a so-called U-shaped plate, rotates the seedling removal amount adjustment pivot shaft 710, thereby changing the height of the seedling mat placement platform rail 630 and adjusting the amount of seedlings to be removed.

[0056] The upper end of the seedling removal amount adjustment assist spring 800 abuts against the underside of the seedling mat placing platform rail 630, and the lower end of the seedling removal amount adjustment assist spring 800 abuts against the upper surface of the seedling planting main frame 620 so as to assist the vertical movement of the seedling mat placing platform rail 630.

[0057] As shown in Figures 5(a) and 5(b), springs are inserted under the seedling mat placing platform rail 630 to support the load when the seedling mat placing platform rail 630 is adjusted and the amount of seedlings removed is changed. In the 8-row planting specification, springs are added in four places to change the spring load on the left and right, which prevents the amount of seedlings removed from changing from left to right due to twisting of the seedling amount adjustment rotating shaft 710, which acts as a seedling removal tube.

[0058] In this way, springs for eliminating the backlash of the seedling mat placing platform rail 630 are placed under the support frame and the seedling mat placing platform rail 630. The direction of the backlash changes depending on whether the seedling removal amount is increased or decreased, and the seedling removal amount may not be stable, but by eliminating the backlash of the seedling mat placing platform rail 630, the seedling removal amount is always stable.

[0059] The plurality of seedling harvesting amount adjustment assist springs 800 are arranged side by side in the left-right direction of the vehicle body. The spring loads of the plurality of seedling harvesting amount adjustment assist springs 800 are set so that the twist of the seedling harvesting amount adjustment rotating shaft 710 is reduced.

[0060] A more specific explanation is as follows.

[0061] The seedling removal amount adjustment assist spring 800 exerts an assist effect with reduced twisting by pushing up the bottom surface of the seedling mat placing platform rail 630 at a position different from the recess of the seedling mat placing platform rail 630 described above, based on the left-right direction of the vehicle body. Of course, in an embodiment in which the seedling removal amount adjustment rotating shaft 710 is formed using a ring member loosely fitted to a fixed shaft that does not rotate, the spring load of the seedling removal amount adjustment assist spring 800 is set so that twisting of these ring members and the like is reduced.

[0062] In this way, the spring load is changed for each position on the left and right. Because the adjustment lever is not in the center, the amount of seedlings removed may vary between the left and right due to twisting of the seedling removal tube, but by adjusting the spring load on the left and right, this difference in the amount of seedlings removed can be prevented, resulting in a stable amount of seedlings removed.

[0063] For example, the spring is set to a set length that leaves some load even when the seedling removal amount is at a minimum. Even if the amount of seedlings is set to a minimum when the load is full, the amount of seedlings removed may not be minimized due to twisting of the seedling removal tube or bending of the lever, but by supporting the load of the seedling removal lever and motor with a spring, it is possible to prevent the amount of seedlings removed when the load is full from matching the intended amount.

[0064] As shown in Figures 6(a) and 6(b), the springs can be arranged parallel to the running direction of the seedling mat placement rail 630 to provide efficient support.

[0065] In this way, the spring is positioned so that a force acts parallel to the operating direction of the seedling mat placing platform rail 630. Even when the seedling removal amount is minimized with a full load of seedlings, twisting of the seedling removal tube or bending of the lever may prevent the amount from being minimized, but by positioning the assist spring in the same direction of spring force as the operating direction of the seedling mat placing platform rail 630, the load on the seedling removal lever and motor can be efficiently supported.

[0066] For example, the spring stay is configured so that the load is borne by the support frame. Although it is also possible to configure the load to be borne only by the seedling picking tube, by having the support frame bear the load, it is possible to reliably bear the load and prevent the stay from bending and causing an unintended change in the amount of seedlings picked.

[0067] As described above, between the seedling planting main frame 620, which is a support frame, and the lower part of the seedling mat placement platform rail 630, which is a so-called "maeita", a seedling removal amount adjustment assist spring 800 is arranged as a spring for squeezing. The spring load of the seedling removal amount adjustment assist spring 800 may be changed at each of the left and right positions, and the spring set length of the seedling removal amount adjustment assist spring 800 is set so that the load remains even when the seedling removal amount is minimum. The spring is arranged to apply a force parallel to the direction of the seedling mat placement platform rail lifting and lowering operation indicated by arrow A, and the seedling removal amount is always stabilized by squeezing.

[0068] (3) Next, the configuration and operation of the rice transplanter according to the embodiment of the present invention will be described in more detail.

[0069] (3a) The seedling mat counting function will be specifically described with reference primarily to Figures 7, 8(a) and 8(b), 9, 10(a) and 10(b), 11, 12, 13 and 14.

[0070] Here, Figures 7, 8(a) and 8(b), 9, 10(a) and 10(b), 11, 12, 13 and 14 are explanatory diagrams (parts 1 to 10) of the seedling mat counting function of a rice transplanter according to an embodiment of the present invention.

[0071] As shown in FIG. 7, a seedling mat number count switch 1101 is disposed at a height from the seedling mat placement rail 630 that is 1 / 3 or less of the length of the seedling mat.

[0072] In this way, a configuration is conceivable in which the seedling mat number count switch 1101 is disposed at a height position of 1 / 3 or less of the total length of the seedling mat from the seedling mat placement rail 630. For example, when the seedling mat length is 600 mm, the switch is disposed at a height of 200 mm or less from the seedling mat placement rail 630. Each time the switch is pressed, a count is performed indicating that one seedling mat has been consumed. When the work is completed, seedling mats with a remaining length of 1 / 3 or less of their total length can only be used for so-called supplementary planting, and are often discarded. Seedlings that are placed on the seedling mat placement stand 610 but not consumed are not counted, and the number of seedling mats consumed can be accurately counted.

[0073] As shown in Figures 8(a) and 8(b), an inclined plate 1102 is attached to cover approximately half of the upper side of the switch. With the effect of such an inclined plate, the switch is pressed at the joint of the seedling mat, so that the number of seedling mats used can be accurately counted.

[0074] In this way, a configuration is conceivable in which an inclined plate 1102 covering the top of the seedling mat number count switch 1101 is attached to the seedling mat placement stand 610. It is also conceivable to have a configuration in which the switch continues to be pressed if there are any seedlings present just to detect the decrease in the seedling mats, but this prevents the next seedling from pressing the switch unnecessarily early, and makes it possible to accurately determine the seam of the seedling mats. A configuration in which the switch is pressed only at the seam of the seedling mats is desirable.

[0075] As shown in Fig. 9, a seedling mat number count switch 1101 is disposed at a position where the seedling feed belts 1103 are located on the left and right. Even if the upper seedlings are lifted up by the plate 1102, the seedling mats are held by the seedling feed belts 1103, so that the upper seedlings that have slipped down can be prevented from overlapping with the lower seedlings.

[0076] In this way, a configuration is conceivable in which the seedling mat number count switch 1101 is attached to the part where the seedling feed belts 1103 are located on the left and right. Since such a part holds the seedling mats, even if the inclined plate 1102 pushes up the seedlings, it is possible to prevent the upper seedlings from overlapping with the lower seedlings.

[0077] As shown in Figures 10(a) and 10(b), if the entire seedling mat is pushed up, the seedlings will overlap, which is likely to cause poor seedling feeding and planting, so only the center of the seedling mat is pushed up.

[0078] In this way, the plate 1102 with an inclination covering the top of the seedling mat number count switch 1101 is considered to be shaped to push up only the center of the seedling mat. If the entire seedling mat is pushed up, the upper seedlings are likely to ride up on the lower seedlings, causing seedling feeding problems. By pushing up only the center of the seedling mat, the occurrence of both ends of the seedling mat overlapping the lower seedlings is suppressed.

[0079] As shown in FIG. 11, the switch with plate 1102 attached is a switch used for counting the number of seedling mats, and the switch without plate 1102 attached is a switch used for general-purpose seedling mat reduction detection alarm.

[0080] In this way, a configuration is conceivable in which plates 1102 are attached to every two rows, with one switch used for detecting and warning the decrease in seedling mats, and the other switch used for counting the number of seedling mats. The so-called row clutch is turned off every two rows, and the seedling consumption of the paired two rows is considered to be the same, so that the decrease in seedling mats and counting the number of seedling mats can be performed without major changes to the configuration.

[0081] As shown in FIG. 12, both ends of a plate 1102 for counting the number of seedling mats are abutted against the seedling mat placement table 610.

[0082] In this way, it is possible to consider a configuration in which both ends of the plate 1102 for counting the number of seedling mats are abutted against the seedling mat placement table 610. Even if the plate 1102 is bent by the weight of the seedling mats, the switch is unlikely to be operated erroneously.

[0083] For example, in a rice transplanter that can detect the position of the lateral feed count lever, when the vertical dimension of the seedling mats is 580 mm and the maximum amount of seedling mats to be taken is 18 mm, if the seedling mat count switch 1101 is pressed before the so-called "pushing together" switch is pressed 16 (<16.1...=(580 / 18) / 2) times after the seedling mat count switch 1101 is pressed, it can be considered that a false detection has occurred and the number of seedling mats will not be counted. Even when the seedling amount is at its maximum, the pushing together switch will be pressed 16 or more times before one seedling mat is completely consumed, so by determining that a false detection has occurred when the seedling mat count switch 1101 is pressed first, it is possible to promote accurate counting of the number of seedling mats used, which corresponds to the number of seedling mats used.

[0084] Furthermore, in a rice transplanter that is equipped with an electric seedling removal amount adjustment mechanism and can detect the amount of seedlings removed, the number of times the seedling mat placement table will move back and forth until one seedling mat is consumed, which is calculated from the amount of seedlings removed, can be calculated, and if the seedling mat number count switch 1101 is pressed before the calculated number is reached, it is determined that an erroneous detection has occurred and the number of seedling mats will not be counted. For example, when the seedling removal amount is 10 mm, the number of times the seedling mat placement table will move back and forth until one seedling mat is consumed is 29 (=(580 / 10) / 2), so even if the seedling mat number count switch 1101 is pressed when the seedling mat placement table has moved back and forth less than 29 times, the number of seedling mats will not be counted.

[0085] As shown in FIG. 13, the portion of the seedling mat pressing member above the seedling mat number count switch 1101 presses the seedlings more strongly than the other portions.

[0086] In this way, a configuration is conceivable in which the portion of the seedling mat pressing member corresponding to the seedling mat number count switch 1101 is formed in a direction that allows the seedling mat to be pressed more firmly than other portions. Since the seedling mat number count switch 1101 is pressed reliably at the joint between the seedlings, it is possible to promote accurate counting of the number of seedling mats that corresponds to the number of seedling mats used.

[0087] As shown in Fig. 14, even if the seedling removal amount is the minimum value of 8 mm, a minimum of 32 (= 8 x 2 x 2) mm seedlings should be fed in two round trips of the seedling mat placing table 610 with four seedling feeds, and the seedling mat number count switch 1101 should not be pressed. If the seedling mat number count switch 1101 continues to be pressed, the seedlings will not be fed normally, and seedlings will easily become clogged and cause poor planting.

[0088] In this way, when the seedling mat number count switch 1101 is pressed and the push-together switch is pressed two or more times, it is determined that the seedling mats are not being fed normally, and a seedling jam alarm is displayed. This is because if the seedling mat placement table 610 moves back and forth twice, the seedling mats should be fed 32 mm and the seedling mat number count switch 1101 should not be pressed, and it is considered that the seedlings are not being fed normally and the seedling mat number count switch 1101 continues to be pressed, causing a problem such as seedling jamming.

[0089] (3b) Mainly with reference to FIG. 15, the function of rotating the drug dispenser will be specifically explained.

[0090] FIG. 15 is an explanatory diagram of the function of rotating the chemical sprayer of the rice transplanter according to the embodiment of the present invention.

[0091] When the seedling mat placing stand 610, also called the seedling tank, is folded up, the seedling mat placing stand 610 often cannot be stored due to mutual interference, so the sprayer needs to be put into the storage position by switching between the working state with the container in the upright position and the storage state with the container in the lying position.

[0092] When the seedling mat placing stand 610 is folded, the stay must be rotated to avoid interference between the seedling mat placing stand 610 and the chemical sprayer stay 1202. A configuration is conceivable in which the rotation state can be recognized by providing a proximity switch 1203 on the rotating part in the chemical sprayer 1201. Since chemical spraying to an appropriate range may not be performed due to forgetting to set the chemical sprayer 1201, preventing forgetting to set the chemical sprayer 1201 is effective.

[0093] In the above-described configuration, when the seedling mat placing stand 610 is moved to the storage position, there may be a case where the planting switch or the like is not turned on.

[0094] In the above-described configuration, when the seedling mat placing stand 610 is moved from the storage position, it is possible to consider a configuration in which the planting switch etc. is not turned on and a warning message is displayed on the monitor to switch from the storage position to the working position.

[0095] In the above-mentioned configuration, when the seedling mat placing table 610 is moved from the storage position, a warning message may be displayed on the monitor to advise the user to switch from the storage position to the working position.

[0096] (3c) With primary reference to Figures 16(a), 16(b), 16(c), 16(d), 16(e), 16(f) and 16(g), the rice transplanter marker slide function will be specifically explained.

[0097] Here, Figures 16(a), 16(b), 16(c), 16(d), 16(e), 16(f) and 16(g) are explanatory diagrams (parts 1 to 7) of the rice transplanter marker slide function of a rice transplanter according to an embodiment of the present invention.

[0098] A slide function is implemented using an electric cylinder 1305 that is turned on and off by a marker slide switch 1304 on the line-drawing marker 1301 or side marker 1302 of the riding rice planter, making it easier to plant in a single-row opening compared to normal planting, and a configuration is conceivable in which the slide function is turned off and the marker returns to its original state when the planting unit is raised or turned. In recent years, when harvesting work is performed, an increasing number of users are planting seedlings so that an area corresponding to a single seedling planting row located on the periphery of the field is formed as a blank area in order to improve the work efficiency of the combine harvester and prevent damage to the machine, but driving to accurately form a blank area is not necessarily easy. With this configuration, the reference position for the start of planting is determined so that a single-row opening is formed, improving straightness.

[0099] For example, a slide function is implemented in the side marker part of a riding rice transplanter, and by using the side marker 1302 on the opposite side of the line drawing marker 1301, not only can planting be easily performed in which a single line of opening is formed compared to normal planting, but it is also possible to consider a configuration in which, when the planting part is raised or turned, the slide function is turned off and the marker returns to its original state.

[0100] For example, a slide function is implemented in the side marker part of a riding rice transplanter, which not only makes it easier to plant in a single row compared to normal planting, but also enables a configuration in which the slide function is turned off and the marker returns to its original state when the steering wheel 1303 is turned beyond a certain steering angle or a turning operation is performed.

[0101] For example, a slide function is implemented on the side marker part of a riding rice transplanter, allowing the position to be adjusted to any position from the driver's seat, making it easier to plant with any number of rows compared to normal planting, and when the planting part is raised or turned, the slide function is turned off and the planter returns to its original marker state. With this configuration, the reference position for the start of planting is determined so that any number of rows can be spaced, improving straightness.

[0102] For example, a slide function is implemented in the line-drawing marker part of a riding rice transplanter, and when the final step of so-called turn planting is performed, not only can planting be easily performed in which a single line of space is formed compared to normal planting, but a configuration can also be considered in which, when the planting part is raised or turned, the slide function is turned off and the marker returns to its original state.

[0103] In addition, 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.

[0104] In addition, the recording medium of the invention related to the present invention is a recording medium having recorded thereon a program for causing a computer to execute all or part of the operations of 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 computer-readable recording medium in which the read program is used in cooperation with a computer.

[0105] In addition, the above-mentioned "some steps (or processes, operations, actions, etc.)" means one or some steps among the multiple steps.

[0106] In addition, the above-mentioned "operation of a step (or process, operation, action, etc.)" means the operation of all or a part of the above-mentioned steps.

[0107] Furthermore, one mode of use of the inventive program related to the present invention may be in the form of being transmitted through a transmission medium such as the Internet, light, radio waves, or sound waves, being read by a computer, and operating in cooperation with the computer.

[0108] Furthermore, the recording medium includes a ROM (Read Only Memory) and the like.

[0109] Furthermore, a computer is not limited to pure hardware such as a CPU (Central Processing Unit), and may also include firmware, an OS (Operating System), and even peripheral devices.

[0110] As described above, the configuration of the present invention may be realized in software or in hardware. [Industrial Applicability]

[0111] 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]

[0112] 100 Body 210 Engine 220 Running gear 221 Front wheel 222 Rear wheel 230 Steering Gear 240 Seedling planting device 241 Seedling planting tool 250 Fertilizer equipment 260 Ground leveling equipment 261 Rotor 262 Float 300 Controller 410 Main transmission 420 Auxiliary transmission 430 Front wheel gear case 440 rear wheel gear case 510 Integrated Starter Generator 520 High Voltage Battery 530 Low Voltage Battery 540 DC / DC Converter 550 Driving motor 560 Work equipment motor 610 Seedling mat placement stand 620 Seedling planting main frame 630 Seedling mat placement rail 700 Seedling quantity adjustment mechanism 701 Monitor 710 Seedling amount adjustment pivot shaft 720 Actuator section 730 Seedling amount adjustment arm 740 Seedling quantity adjustment lever 800 Seedling quantity adjustment assist spring 900 Work Machine 1101 Seedling mat number count switch 1102 Plate 1103 Seedling feed belt 1201 Chemical sprayer 1202 Chemical sprayer stay 1203 Proximity Switch 1301 Line Marker 1302 Side Marker 1303 Handle 1304 Marker Slide Switch 1305 Cylinder A Arrow

Claims

1. An engine (210); an integrated starter generator (510) that functions as a starter for the engine (210); A high voltage battery (520) for the high voltage; a low voltage battery (530) for a low voltage lower than the high voltage; A working machine (900); It is equipped with The integrated starter generator (510) generates electricity by driving the engine (210) to charge the high-voltage battery (520) and the low-voltage battery (530); The working machine (900) is driven by the high voltage battery (520), a rear wheel (222) driven by the engine (210); A work vehicle, characterized in that the integrated starter generator (510) functions as a motor and cooperates with the engine (210) to drive the rear wheels (222).

2. The vehicle further includes a driving motor (550) that drives the rear wheels (222) using the high-voltage battery (520), 2. The work vehicle according to claim 1, wherein the traction motor (550) also functions as a generator, generating electricity by driving the rear wheels (222) to charge the high-voltage battery (520).

3. The working machine (900) has a seedling planting device (240), 3. The work vehicle according to claim 2, wherein a monitor (701) of the seedling quantity adjustment mechanism (700) of the seedling planting device (240) is driven by utilizing the low-voltage battery (530).

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