JP2014155476A - Paddy field working machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To constitute two storage parts to the same storage parts (same capacities) while operating two payout parts by one operation, in a ten-row type paddy field working machine.SOLUTION: A paddy field working machine comprises: payout parts 31a to 31e (for a first storage part) corresponding to a first row to a fifth row, payout parts 31f to 31j (for a second storage part) corresponding to a sixth row to a tenth row; and supply switching parts 66 which can switch the payout parts 31a to 31j to supply states and stop states. A first operation part 91 and the supply switching parts 66 at the first row and the second row are connected to each other. A second operation part 92 and the supply switching parts 66 at the third row and the forth row are connected to each other. A third operation part 93a and the supply switching part 66 at the fifth row are connected to each other, and a third operation part 93b and the supply switching part 66 at the sixth row are connected to each other. A fourth operation part 94 and the supply switching parts 66 at the seventh row and the eighth row are connected to each other. A fifth operation part 95 and the supply switching parts 66 at the ninth row and the tenth row are connected to each other.

Description

  The present invention is a riding-type rice transplanter configured to supply liquid or powdered fertilizers or drugs (corresponding to an agricultural supply body) to a rice field while planting seedlings, or a seed culm (corresponding to an agricultural supply body). The present invention relates to a paddy field work machine such as a riding type direct sowing machine configured to supply liquid or powdery fertilizers, chemicals and the like (corresponding to an agricultural supply body) to the rice field while sowing.

For example, as disclosed in Patent Document 1, there is an 8-row type riding type rice transplanter configured to supply liquid fertilizer (corresponding to an agricultural supply body) to a rice field while planting seedlings.
In Patent Document 1, right and left fertilizer tanks (corresponding to storage units) that store liquid fertilizer (16 in FIGS. 1, 2, and 4 of Patent Document 1), first to fourth that feed out fertilizer in the left fertilizer tank Side line pump (corresponding to the feeding part) (80a to 80d in FIG. 4 of Patent Document 1), 5th to 8th side line pump (corresponding to the feeding part) for delivering the fertilizer in the right fertilizer tank (FIG. 4 of Patent Document 1) 80e-80h).

First to eighth side strip nozzles (Patent Document 1 and 82a to 82h in FIG. 4) are provided in the seedling planting device at predetermined intervals in the left-right direction. The first to fourth side pumps and the first to fourth side nozzles are connected to each other via a supply hose, and the fifth to eighth side pumps and the fifth to eighth side nozzles are connected to the supply hose. Connected separately.
Thereby, the fertilizer of the right and left fertilizer tanks is supplied to the 1st-8th side nozzle through the supply hose from the 1st-8th sideline pump, and is supplied to a field from the 1st-8th side nozzle. .

  In Patent Document 1, each of the first to eighth side pumps is provided with a shift member 103 (corresponding to a supply switching unit) that shuts off and stops the power (103 in FIG. 15 and FIG. 16 in Patent Document 1). The first to fourth clutch levers (corresponding to the operation unit) (FIGS. 1 and 111a to 111d in FIG. 1 and FIG. 19) are provided at the rear part of the machine body.

In this case, the first clutch lever and the shift members of the first and second side pumps are connected via a wire (corresponding to a connection mechanism) (112a in FIG. 19 of Patent Document 1). The second clutch lever and the shift members of the third and fourth side pumps are connected via a wire (corresponding to a connection mechanism) (112b in FIG. 19 of Patent Document 1).
The third clutch lever and the shift members of the fifth and sixth side pumps are connected via a wire (corresponding to a connection mechanism) (112c in FIG. 19 of Patent Document 1). The fourth clutch lever and the shift members of the seventh and eighth side pumps are connected via a wire (corresponding to a connection mechanism) (112d in FIG. 19 of Patent Document 1).

  Thereby, the first and second side pumps can be stopped by operating the first clutch lever, and the third and fourth side pumps can be stopped by operating the second clutch lever. . The fifth and sixth side pumps can be stopped by operating the third clutch lever, and the seventh and eighth side pumps can be stopped by operating the fourth clutch lever.

JP 2008-173086 A

  Since Patent Document 1 is an eight-row type paddy field work machine, even if one operation unit and two supply switching units (feeding units) are connected through a connection mechanism, the right storage unit and the four storage units are connected. The feeding portion, the left storage portion, and the four feeding portions are symmetric, and the right and left storage portions can be configured to be the same (the same capacity).

On the other hand, in the case of a 10-row type paddy field work machine, if one operating unit and two supply switching units (feeding units) are connected via a connection mechanism, for example, the right storage unit and six feeding units are provided. Part, and the left storage part and the four feeding parts become asymmetrical, and the right and left storage parts need to be configured differently (different capacities) (for example, the right storage part It needs to be larger than the left reservoir).
Similarly, in a 6-row type paddy field work machine, if one operating unit and two supply switching units (feeding units) are connected via a connection mechanism, for example, the right storage unit and four feeding units, and It becomes asymmetrical configuration such as the left storage unit and the two feeding units, and the right and left storage units need to be configured differently (different capacities).

As described above, in the right and left reservoirs, when the number of feeding units is different, the difference in consumption of the agricultural supply bodies in the right and left reservoirs becomes large, and the right and left reservoirs On the other hand, it is necessary to replenish the agricultural supply bodies separately at different times, which may lead to a decrease in workability.
Furthermore, if the right and left reservoirs are different (different capacities), the right and left reservoirs cannot be shared, and two different reservoirs need to be manufactured, resulting in increased manufacturing costs. Will be invited.

  In the 10-row and 6-row type paddy field machines, the present invention is configured so that the two supply switching sections (feeding sections) can be operated by one operating section, and the two storage sections are the same (same as above). It is intended to be able to be configured to capacity).

[I]
(Constitution)
A first feature of the present invention is configured as follows in a paddy field machine configured to supply agricultural supply bodies to 10 supply positions set on a rice field with a predetermined interval in the left-right direction. It is in.
The 1st storage part and the 2nd storage part which store an agricultural supply body, the 5 supply parts corresponding to the 1st-5th article which pays out the agricultural supply body of the 1st storage part, and the 2nd storage part It has 5 feeding parts corresponding to the 6th to 10th items for feeding out the agricultural supply body of
The agricultural supply bodies of the first and second storage units are configured to be supplied to each of the first to tenth feeding positions from each of the first to tenth feeding parts,
A supply switching unit that can be operated between a supply state in which an agricultural supply body is supplied from the supply unit to the supply position and a non-supplied supply state is provided in each of the first to tenth supply units,
A connection mechanism for connecting the first, second, third, fourth, and fifth operation sections, the first operation section and the first and second supply switching sections, and the second operation section and the third and fourth sections. A connection mechanism for connecting the supply switching unit, a connection mechanism for connecting the third operation unit and the fifth supply switching unit, and connecting the third operation unit and the sixth supply switching unit. A connection mechanism for connecting the fourth operating section with the supply switching section for the seventh and eighth articles, and a connection mechanism for connecting the fifth operating section with the supply switching sections for the ninth and tenth sections. And with
The first operation unit can operate the first and second supply switching units, the second operation unit can operate the third and fourth supply switching units, the third operation unit can operate the fifth and sixth items. The supply switching unit of the item can be operated, the supply switching unit of the seventh and eighth items can be operated by the fourth operation unit, and the supply switching unit of the ninth and tenth items can be operated by the fifth operation unit It is composed.

(Operation and effect of the invention)
[I] -1
According to the first feature of the present invention, in the 10-row type paddy field work machine, the first storage section and the first to fifth feeding sections correspond to the first to fifth supply positions, The second storage section and the sixth to tenth feeding sections correspond to the sixth to tenth supply positions.
Thereby, it is possible to make the same number of feeding parts (five) belonging to the first storage part and the feeding parts (five) belonging to the second storage part, and the same number of first and second storage parts. (Same capacity).

Therefore, by using the same number of feeding sections (five) belonging to the first storage section and feeding sections (five) belonging to the second storage section, the consumption condition of the agricultural supply body in the first and second storage sections. This makes it difficult to produce a difference between the first and second reservoirs, so that it is not necessary to separately replenish the agricultural supply bodies at different times, and workability can be improved.
By being able to configure the first and second reservoirs to be the same (same capacity), the first and second reservoirs can be shared, eliminating the need to manufacture two different reservoirs, An increase in manufacturing cost can be suppressed.

[I] -2
According to the 1st characteristic of this invention, the supply switching part which can be operated to the supply state from which an agricultural supply body is supplied to a supply position from a supply part, and the stop state which is not supplied to each of the 1st-10th supply part I have.
In this case, the first and second supply switching sections (feeding sections), and the third and fourth supply switching sections (feeding sections) belong to the first storage section. The line and the second supply switching part (feeding part) can be easily connected by the connection mechanism, and the second operating part and the third and fourth supply switching parts (feeding part) are connected by the connection mechanism. be able to.

As described above, the seventh and eighth supply switching sections (feeding sections) and the ninth and tenth supply switching sections (feeding sections) belong to the second storage section. And the seventh and eighth supply switching parts (feeding parts) can be easily connected by a connection mechanism, and the fifth operating part and the ninth and tenth supply switching parts (feeding parts) can be connected by a connection mechanism. Can be connected.
As a result, the first, second, fourth and fifth operation switching sections (feeding section), the third and fourth feeding switching section (feeding section), the seventh and eighth feeding, The switching part (feeding part), the 9th and 10th supply switching parts (feeding part) can be operated without difficulty.

[I] -3
In the state described in [I] -1 and 2 above, the fifth supply switching part (feeding part) belongs to the first storage part, and the sixth supply switching part (feeding part) belongs to the second storage part. Thus, the fifth supply switching section (feeding section) and the sixth supply switching section (feeding section) are separated.
According to the first feature of the present invention, the third operation part and the fifth supply switching part (feeding part) are connected by a connection mechanism, and the third operating part and the sixth supply switching part (feeding part) Are connected by another connection mechanism. Thus, by operating the third operating section, the fifth and sixth supply switching sections (feeding sections) separated from each other can be operated without difficulty through the two systems of connection mechanisms.

[II]
(Constitution)
The second feature of the present invention resides in the following configuration in the paddy field working machine of the first feature of the present invention.
A first actuator and a second actuator;
The third operation unit includes a third operation unit for the fifth item connected to the supply switching unit for the fifth item, and a third operation unit for the sixth item connected to the supply switching unit for the sixth item. And
The first actuator is configured to be capable of operating the first and second operation units and the fifth operation unit for the fifth line,
The second actuator is configured to be operable with the fourth and fifth operation portions and the third operation portion for the sixth line,
The first actuator can be operated by the first actuator to operate the first and second supply switching units, and the second actuator can be operated by the first actuator to supply the third and fourth items. The switching unit can be operated, the 5th and 6th third operating units can be operated by the first and second actuators, and the 5th and 6th supply switching units can be operated, and the second actuator can It is possible to operate the supply switching unit of the seventh and eighth items by operating the fourth operation unit, and to operate the supply switching unit of the ninth and tenth items by operating the fifth operation unit by the second actuator. It is composed.

(Operation and effect of the invention)
[II] -1
When configuring the first to fifth operation sections described in [I] -2, 3 of the preceding paragraph with the first and second actuators to operate the first to tenth supply switching sections (feeding sections) Suppose that the first, second, and third operation units are operated by the first actuator, and the fourth and fifth operation units are operated by the second actuator.
According to the above configuration, since the first and second actuators are asymmetrical, the first and second actuators cannot be shared, and two types of different actuators need to be manufactured. It will cause a rise.

[II] -2
According to the second feature of the present invention with respect to the state described in [II] -1, the third operation unit is connected to the fifth supply switching unit (feeding unit). And a sixth operation unit for the sixth line connected to the sixth supply switching unit (feeding unit). The first actuator is configured to be able to operate the first and second operating portions and the third operating portion for the fifth line, and the fourth actuator can be operated to the fourth and fifth operating portions and the third operating section for the sixth line. It is configured.
As a result, the operation target of the first actuator becomes three, the first and second operation units, and the third operation unit for the fifth line, and the operation target of the second actuator is the fourth and fifth operation unit, and the third for the sixth line. There are three operation units, and the number of operation objects of the first and second actuators is the same.
Therefore, the first and second actuators can be shared, and it is not necessary to manufacture two different types of actuators, thereby suppressing an increase in manufacturing cost.

[III]
(Constitution)
The third feature of the present invention resides in the following configuration in the paddy field working machine of the second feature of the present invention.
The left side portion of the machine body includes the first storage unit, the feeding unit of the first to fifth items, the supply switching unit of the first to fifth items, and the first actuator.
The second reservoir, the tenth to tenth feeding section, the sixth to tenth supply switching section, and the second actuator are provided on the right side of the fuselage.

(Operation and effect of the invention)
According to the third aspect of the present invention, the left and right sides of the aircraft can be provided with the same capacity storage units, the same number (five) of feeding units, the same number (five) of supply switching units, and the same actuator. Therefore, the left / right balance of the aircraft can be improved.

[IV]
(Constitution)
A fourth feature of the present invention is as follows in a paddy field machine configured to supply agricultural supply bodies to six supply positions set on the paddy surface at predetermined intervals in the left-right direction. is there.
A first storage section and a second storage section for storing an agricultural supply body; three supply sections corresponding to items 1, 2 and 3; and the second storage section for feeding out the agricultural supply body of the first storage section. With three feeding parts corresponding to the 4th, 5th and 6th strips.
The agricultural supply bodies of the first and second storage units are configured to be supplied to each of the supply positions of the first to sixth strips from each of the feeding portions of the first to sixth strips,
A supply switching unit that can be operated between a supply state where the agricultural supply body is supplied from the supply unit to the supply position and a non-supplied supply state is provided in each of the supply units of the first to sixth items,
Connects the first, second and third operation units, the connection mechanism connecting the first operation unit and the first and second supply switching units, and the second operation unit and the third supply switching unit. A connection mechanism that connects the second operation unit and the fourth supply switching unit, and a connection mechanism that connects the third operation unit and the fifth and sixth supply switching units. prepare for,
The first operation unit can operate the first and second supply switching units, the second operation unit can operate the third and fourth supply switching units, the third operation unit can operate the fifth and sixth items. The supply switching unit of the item is configured to be operable.

(Operation and effect of the invention)
[IV] -1
According to the fourth feature of the present invention, in the six-row type paddy field work machine, the first storage section and the first, second and third feeding sections correspond to the first, second and third feeding positions. Therefore, the second storage section and the fourth, fifth, and sixth supply sections correspond to the fourth, fifth, and sixth supply positions.
Thereby, it is possible to make the number of the feeding parts (three) belonging to the first storage part and the number of the feeding parts (three) belonging to the second storage part the same, and the same number of first and second storage parts. (Same capacity).

Therefore, by using the same number of feeding sections (three) belonging to the first storage section and feeding sections (three) belonging to the second storage section, the consumption condition of the agricultural supply body in the first and second storage sections. This makes it difficult to produce a difference between the first and second reservoirs, so that it is not necessary to separately replenish the agricultural supply bodies at different times, and workability can be improved.
By being able to configure the first and second reservoirs to be the same (same capacity), the first and second reservoirs can be shared, eliminating the need to manufacture two different reservoirs, An increase in manufacturing cost can be suppressed.

[IV] -2
According to the 4th characteristic of this invention, the supply switching part which can be operated to the supply state from which an agricultural supply body is supplied to a supply position from a supply part, and the stop state which is not supplied to each of the 1st-6th supply part I have.
In this case, since the first and second supply switching sections (feeding sections) belong to the first storage section, the first operating section and the first and second supply switching sections (feeding sections) are connected to each other. Can be connected more easily.

As described above, since the fifth and sixth supply switching sections (feeding sections) belong to the second storage section, the third operation section and the fifth and sixth supply switching sections (feeding sections) are provided. The connection mechanism can easily connect.
Thereby, the 1st and 3rd operation part can operate the 1st and 2nd supply switching part, the 5th and 6th supply switching part (feeding part) without difficulty.

[IV] -3
In the state described in [IV] -1 and 2 above, the third supply switching part (feeding part) belongs to the first storage part, and the fourth supply switching part (feeding part) belongs to the second storage part. Thus, the third supply switching unit (feeding unit) and the fourth supply switching unit (feeding unit) are separated.
According to the fourth feature of the present invention, the second operating part and the third supply switching part (feeding part) are connected by a connection mechanism, and the second operating part and the fourth supply switching part (feeding part) are connected to each other. Are connected by another connection mechanism. Thus, by operating the second operation section, the third and fourth supply switching sections (feeding sections) separated from each other can be operated without difficulty through the two systems of connection mechanisms.

[V]
(Constitution)
The fifth feature of the present invention resides in the following configuration in the paddy field working machine of the fourth feature of the present invention.
A first actuator and a second actuator;
The second operation unit includes a second operation unit for the third line connected to the supply switching unit for the third line, and a second operation unit for the fourth line connected to the supply switching unit for the fourth line. And
The first actuator is configured to be able to operate the first operation unit and the second operation unit for the third line,
The second actuator is configured to be able to operate the third operation unit and the second operation unit for the fourth line,
The first operating unit can be operated by the first actuator to operate the first and second supply switching units, and the first and second actuators can be used to operate the third and fourth operating units. The third and fourth supply switching units can be operated, and the second actuator is operated by the second actuator so that the fifth and sixth supply switching units can be operated.

(Operation and effect of the invention)
[V] -1
The first, second, and third operation sections described in [IV] -2, 3 described above are operated by the first and second actuators to operate the first to sixth supply switching sections (feeding sections). In this case, it is assumed that the first and second operation units are operated by the first actuator and the third operation unit is operated by the second actuator.
According to the above configuration, since the first and second actuators are asymmetrical, the first and second actuators cannot be shared, and two types of different actuators need to be manufactured. It will cause a rise.

[V] -2
According to the fifth aspect of the present invention with respect to the state described in the preceding item [V] -1, the second operation unit is connected to the third supply switching unit (feeding unit). And a second operation part for the fourth line connected to the supply switching part (feeding part) for the fourth line. The first actuator is configured to be operable with the first operating section and the third thread second operating section, and the second actuator is configured to be operable with the third operating section and the fourth thread second operating section.
Thereby, the operation target of the 1st actuator becomes two, the 1st operation part and the 2nd operation part for the 3rd line, and the operation object of the 2nd actuator is 2 of the 3rd operation part and the 2nd operation part for the 4th line. As a result, the number of operation objects of the first and second actuators is the same.
Therefore, the first and second actuators can be shared, and it is not necessary to manufacture two different types of actuators, thereby suppressing an increase in manufacturing cost.

[VI]
(Constitution)
The sixth feature of the present invention resides in the following configuration in the paddy field working machine of the fifth feature of the present invention.
The left side portion of the fuselage includes the first storage unit, the feeding unit of the first, second and third items, the supply switching unit of the first, second and third items, and the first actuator.
The second storage section, the fourth, fifth and sixth feed sections, the fourth, fifth and sixth supply switching sections, and the second actuator are provided on the right side of the fuselage.

(Operation and effect of the invention)
According to the sixth aspect of the present invention, the left side and the right side of the airframe can be provided with the same capacity storage unit, the same number (three) of feeding units, the same number (three) of supply switching units, and the same actuator. Therefore, the left / right balance of the aircraft can be improved.

It is a whole side view of a 10 type model riding type rice transplanter. 1 is an overall plan view of a ten-row riding rice transplanter. FIG. 1 is an overall front view of a 10-row riding rice transplanter. FIG. The figure which shows the connection state of an engine, a hydrostatic continuously variable transmission, a transmission case, a transmission mechanism, the 1st and 2nd fertilizer tank, the 1st-10th pumps, and the 1st-10th pumps, and the 1st-10th nozzles. It is. It is a figure which shows a transmission system of an engine, a hydrostatic continuously variable transmission, a transmission case, a seedling planting device, a transmission mechanism, and first to tenth pumps. It is a side view of the vicinity of the left fertilizer tank and the 1st-5th pump. It is a vertical front view of the vicinity of the left fertilizer tank and the 1st-5th pump. It is a top view of the vicinity of the operation arm of a 1st-5th pump (6th-10th pump), a connection member, and a wire. It is a side view of the vicinity of the cover and operation member of a 1st-5 pump (6th-10th pump). It is a figure which shows linkage states, such as a 1-10 pump, a planting clutch, a fertilization clutch, a 1-5 clutch switch, a 1-5 minority number clutch, and a 1-5 vertical feed clutch. It is a figure which shows the state of the 1st-10th pump at the time of pushing operation (ON operation) of a 1st clutch switch from the state shown in FIG. It is a figure which shows the state of the 1st-10th pump at the time of pushing operation (ON operation) of a 2nd clutch switch from the state shown in FIG. It is a figure which shows the state of the 1st-10th pump at the time of pushing and operating a 3rd clutch switch (ON operation) from the state shown in FIG. It is a figure which shows the state of the 1st-10th pump at the time of pushing operation (ON operation) of a 4th clutch switch from the state shown in FIG. It is a figure which shows the state of the 1st-10th pump at the time of pushing operation (ON operation) of a 5th clutch switch from the state shown in FIG. In 1st another form of implementation of this invention, it is a figure which shows the linkage state of a 1st-5 minority lever, a 1st-10 pump, a 1st-5 minority clutch, and a 1st-5 longitudinal feed clutch. In a second alternative form of the invention (six-row type riding rice transplanter), engine, hydrostatic continuously variable transmission, transmission case, transmission mechanism, first and second fertilizer tanks, first to sixth pumps, And it is a figure which shows the connection state of the 1st-6th pump and the 1st-6th nozzle. In the second alternative embodiment of the invention (six-row type riding rice transplanter), the first to sixth pumps, the planting clutch, the fertilizer clutch, the first to third clutch switches, the first to third minority clutches and the first It is a figure which shows linkage states, such as -3 vertical feed clutches. In the third embodiment of the invention (six-row type riding rice transplanter), the first, second and third minority levers and the first to sixth pumps, the first, second and third minority strip clutches, , 3 is a diagram showing a state of linkage with the three longitudinal feed clutch.

[1]
As shown in FIGS. 1 and 2, a link mechanism 3 and a hydraulic cylinder 4 that drives the link mechanism 3 to move up and down are provided at the rear of the machine body including the right and left front wheels 1 and the right and left rear wheels 2. In addition, a 10-row type seedling planting device 5 is supported at the rear part of the link mechanism 3 to constitute a 10-row type riding type rice transplanter which is an example of a paddy field work machine.

As shown in FIG. 1 and FIG. 2, the seedling planting device 5 includes five transmission cases 6, a planting case 7 that is rotatably supported on the right and left sides of the rear portion of the transmission case 6, and a planting case 7. A pair of planting arms 8, 5 grounding floats 9, seedling rests 10 and the like provided at both ends of the plant. As a result, the planting case 7 is rotationally driven as the seedling platform 10 is driven to reciprocate laterally to the left and right, and the planting arm 8 alternately takes out the seedlings from the lower part of the seedling platform 10 and puts them on the rice field. Plant.
In this case, as shown in FIG. 2, the 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 (from (1) to (10)) from the left in the direction of travel of the aircraft To do. The left and right center position of the aircraft is located between the 5th and 6th stripes.

[2]
Next, the traveling transmission system to the right and left front wheels 1 and the right and left rear wheels 2 will be described.
As shown in FIG. 1, a mission case 17 is provided at the front of the aircraft, and an engine 19 is supported on a support frame 18 connected to the front of the mission case 17. The right and left front axle cases 20 are connected to the right and left lateral sides of the mission case 17 so that the right and left front wheels 1 can be steered around the vertical axis of the right and left front axle cases 20. It is supported by.

  As shown in FIG. 5, a hydrostatic continuously variable transmission 21 is connected to an upper front portion of the left lateral side portion of the mission case 17, and the power of the engine 19 is used for the hydrostatic continuously variable transmission 21. It is transmitted to the input shaft 21a via the transmission belt 23. The hydrostatic continuously variable transmission 21 has a neutral stop position, and is configured to be continuously variable on the forward side and the reverse side. In the transmission case 17, the transmission shaft 22 is rotatably supported, and the output shaft 21b of the hydrostatic continuously variable transmission 21 and the transmission shaft 22 are connected by a spline structure.

  As shown in FIG. 5, a low speed gear 24 and a high speed gear 25 are fixed to the transmission shaft 22, and a shift gear 27 is integrated with the transmission shaft 26 in a spline structure on a transmission shaft 26 arranged in parallel with the transmission shaft 22. It is externally fitted so that it can rotate and slide. As a result, the power of the output shaft 21b and the transmission shaft 22 of the hydrostatic continuously variable transmission 21 is shifted to high and low by shifting the shift gear 27 to engage with the low speed gear 24 and the high speed gear 25. It is transmitted to the transmission shaft 26.

  With the above structure, as shown in FIG. 5, the power of the transmission shaft 26 is transferred from the transmission gear 30 to the right and left through the front wheel differential mechanism (not shown) and the transmission shaft (not shown) of the front axle case 20. It is transmitted to the front wheel 1. As shown in FIG. 1, the power branched from the transmission gear 30 is transmitted from the transmission shaft 38 to the rear axle case 37, and is transmitted to the right and left rear wheels 2 via the transmission shaft (not shown) of the rear axle case 37. Communicated.

[3]
Next, the planting transmission system to the seedling planting device 5 will be described.
As shown in FIG. 5, a transmission gear 43 is externally fitted to the transmission shaft 22 via a one-way clutch 44, and the forward driving power of the output shaft 21 b of the hydrostatic continuously variable transmission 21 is transmitted by the one-way clutch 44. 43.

  As shown in FIG. 5, the transmission gear 45 and the six transmission gears 46 are connected to each other so as to rotate integrally, and the transmission gear 45 and the six transmission gears 46 are externally fitted to the transmission shaft 26 so as to be relatively rotatable. The transmission gears 43 and 45 are engaged with each other. Six transmission gears 48 are fitted on a transmission shaft 47 arranged in parallel with the transmission shaft 26 so as to be relatively rotatable, and each of the six transmission gears 46 and the transmission gear 48 is engaged.

  As shown in FIG. 5, the portion of the transmission shaft 47 to which the transmission gear 48 is fitted is formed in a hollow shape (cylindrical shape), and a circular opening (not shown) is formed in the outer peripheral portion of the portion of the transmission shaft 47. ) And a ball (not shown) is arranged in the opening of the transmission shaft 47. An operation lot 49 is slidably inserted into the transmission shaft 47, and a large diameter portion is provided at the tip of the operation rod 49.

  As shown in FIG. 5, the planting transmission mechanism 50 is configured by the six transmission gears 46, the transmission gear 48, the operation rod 49, and the like. The operating rod 49 is slid to push the selected ball outward by the large diameter portion of the operating rod 49 so that the selected ball enters the opening of the transmission shaft 47 and the inner peripheral portion of the transmission gear 48. Thus, one transmission gear 48 is connected to the transmission shaft 47. As a result, one of the six transmission gears 48 is selected by the operating rod 49 and connected to the transmission shaft 47, so that the power of the transmission shaft 26 is changed to six stages and is transmitted to the transmission shaft 47. Communicated.

  As shown in FIG. 5, an output shaft 51 is provided at the upper part of the rear portion of the transmission case 17 and protrudes rearward. A bevel gear 52 that is externally fitted to the output shaft 51 so as to be relatively rotatable is fixed to the transmission shaft 47. The bevel gear 53 is engaged. A planting clutch 57 that can transmit and shut the power of the transmission shaft 47 to and from the output shaft 51 is formed between the transmission shaft 51 and the bevel gear 52. As shown in FIG. 1, a transmission shaft 58 is connected across the output shaft 51 and an input shaft (not shown) of the seedling planting device 5.

  With the above structure, as shown in FIGS. 1 and 5, the power of the transmission shaft 26 is transmitted through the planting speed change mechanism 50, the bevel gears 52 and 53, the planting clutch 57, the output shaft 51, and the transmission shaft 58. 5 is transmitted. By shifting the power transmitted to the seedling planting device 5 (transmission shaft 47) by the planting speed change mechanism 50, the seedling planting interval (work travel speed of the machine body) by the seedling planting device 5 (planting arm 8). The ratio of the planting speed of the seedling planting device 5 (planting arm 8) with respect to can be changed.

[4]
Next, the left fertilizer tank 28 (corresponding to the first reservoir), the right fertilizer tank 29 (corresponding to the second reservoir), the first, 2, 3, 4, 5, 6, 7, 8, 9, The structure of the 10 pumps 31a, 31b, 31c, 31d, 31e, 31f, 31g, 31h, 31i, and 31j (corresponding to the feeding portion) will be described.

  As shown in FIGS. 1 and 2, steps 13 for getting on and off the driver's seat 11 and the floor 16 from the eaves are provided on the right and left lateral sides of the lower part of the bonnet 12 covering the engine 19. The front and rear support frames 14 extend from the front axle case 20 to the lateral outer sides of the right and left steps 13 and extend upward. Five reserve seedling platforms 14 a are supported by the front and rear support frames 14 so as to be positioned laterally outside the right and left steps 13.

  As shown in FIGS. 3, 6, and 7, the front and rear support frames 15 are connected to the front and rear support frames 14, and are extended to the right and left sides, and are configured by bending a plate material. A support frame 33 is connected across the front and rear support frames 15. The right and left fertilizer tanks 28 and 29 for storing liquid fertilizer (corresponding to agricultural supply bodies) are placed and supported on the support frame 63, and the right and left fertilizer tanks 28 and 29 are supported front and rear. It is connected to the frame 15. The right and left fertilizer tanks 28 and 29 are made of synthetic resin and are semi-transparent and have the same length (same capacity) configured vertically. The right and left sides of the body are below the reserve seedling table 14a. The right and left fertilizer tanks 28 and 29 are arranged along the front-rear direction.

  As shown in FIGS. 3, 6, and 7, the stirring blade 34 is rotatably supported around the vertical axis P <b> 1 at the center in the front-rear direction inside the right and left fertilizer tanks 28 and 29, and the stirring blade 34 is driven to rotate. An electric motor 35 is provided between the support frames 33 at the bottom of the right and left fertilizer tanks 28 and 29. Thereby, the stirring blade 34 is rotationally driven by the electric motor 35 to stir the liquid fertilizer, thereby preventing the liquid fertilizer from solidifying.

As shown in FIGS. 3, 6, and 7, the front and rear brackets 36 having an inverted triangular shape in front view are connected downward to the front and rear portions of the support frame 33, and span the front and rear brackets 36. Upper and lower reinforcing rods 39 are connected. Below the left fertilizer tank 28, the first, second, third, fourth, and fifth pumps 31a, 31b, 31c, 31d, and 31e face in the left-right direction across the front and rear brackets 36. They are connected side by side (in the direction along the longitudinal direction of the left fertilizer tank 28).
As shown in FIG. 4, below the right fertilizer tank 29, the sixth, seventh, eighth, ninth, and tenth pumps 31f, 31g, 31h, 31i, and 31j extend in the left-right direction across the front and rear brackets 36. In a state of facing, they are connected side by side in the front-rear direction (the direction along the longitudinal direction of the right fertilizer tank 29).

As shown in FIGS. 4 and 6, the first to fifth pumps 31 a to 31 e communicate with each other inside, and the supply path 40 extending from the lower front part of the left fertilizer tank 28 is the frontmost fifth part. Supply paths 41 and 42 connected to the pump 31e and extending from the lower rear part of the left fertilizer tank 28 are connected to the first pump 31a at the rearmost part.
As shown in FIG. 4, the sixth to tenth pumps 31f to 31j communicate with each other inside, and the supply path 40 extended from the lower front portion of the right fertilizer tank 29 is connected to the foremost sixth pump 31f. Connected, supply paths 41 and 42 extending from the lower rear portion of the right fertilizer tank 29 are connected to the rearmost tenth pump 31j.

  As shown in FIG. 6, the supply paths 40 and 41 are made of rubber hoses and configured in an elbow shape, and the supply path 42 is formed of a synthetic resin and configured in a T shape, and obliquely outwardly downward from the supply path 42. Thus, the discharge path 42a is extended. An open / close valve (not shown) is provided in the discharge path 42 a of the supply path 42, and an operation arm 42 b for operating the open / close valve is provided in the discharge path 42 a of the supply path 42.

  As a result, as shown in FIGS. 4 and 7, the liquid fertilizer in the left fertilizer tank 28 is supplied to the suction portion 54 of the fifth pump 31 e via the supply path 40, and the first fertilizer via the supply paths 41 and 42. It is supplied to the suction part 54 of the pump 31a and supplied to the suction part 54 of the first to fifth pumps 31a to 31e. As shown in the figure, the liquid fertilizer in the right fertilizer tank 29 is supplied to the suction part 54 of the sixth pump 31 f via the supply path 40, and the suction part 54 of the tenth pump 31 j via the supply paths 41 and 42. Is supplied to the suction part 54 of the sixth to tenth pumps 31f to 31j.

[5]
Next, the first, second, third, fourth, fifth, sixth, seventh, eighth, ninth, and tenth nozzles 32a, 32b, 32c, 32d, 32e, 32f, 32g, 32h, 32i, and 32j (corresponding to the supply positions) explain.

  As shown in FIGS. 1 and 4, the first to tenth nozzles 32 a to 32 j are thin pipes and are constituted by metal pipes, and the first to tenth nozzles 32 a to 32 j pass through the planting case 7 and the planting arm 8. It is fixed to the seedling planting device 5 at a predetermined interval in the left-right direction so as to be arranged near the side of the locus. The outlets of the first to tenth nozzles 32a to 32j are disposed at a relatively shallow position in the surface of the rice field, and span each of the first to tenth pumps 31a to 31j and each of the first to tenth nozzles 32a to 32j. A supply hose 55 is connected.

  Accordingly, as shown in FIG. 4, the first pump 31a and the first nozzle 32a correspond to the first line, the second pump 31b and the second nozzle 32b correspond to the second line, the third pump 31c and the third nozzle 32c corresponds to the third line, the fourth pump 31d and the fourth nozzle 32d correspond to the fourth line, the fifth pump 31e and the fifth nozzle 32e correspond to the fifth line, and the left fertilizer tank 28 is the first. Corresponds to the fifth article.

As shown in FIG. 4, the sixth pump 31f and the sixth nozzle 32f correspond to the sixth thread, the seventh pump 31g and the seventh nozzle 32g correspond to the seventh thread, and the eighth pump 31h and the eighth nozzle 32h correspond to the eighth thread. The 9th pump 31i and the 9th nozzle 32i correspond to the 9th line, the 10th pump 31j and the 10th nozzle 32j correspond to the 10th line, and the right fertilizer tank 29 corresponds to the 6th to 10th line. Corresponding to
In this case, between the fifth nozzle 32e and the planting case 7 (planting arm 8) of the fifth thread and the sixth nozzle 32f and the planting case 7 (planting arm 8) of the sixth thread, the left and right center of the aircraft The position is located.

  With the above structure, as shown in FIG. 1 and FIG. 4, the first to tenth pumps 31 a to 31 j are driven as described in [6] to be described later along with the seedling planting by the seedling planting device 5. Then, the liquid fertilizer in the left fertilizer tank 28 is supplied to the rice field through the first to fifth nozzles 32a to 32e, and the liquid fertilizer in the right fertilizer tank 29 is supplied through the sixth to tenth nozzles 32f to 32j. Supplied to the field.

[6]
Next, the drive structure of the first to tenth pumps 31a to 31j will be described.
As shown in FIG. 5, the fertilization output shaft 56 is rotatably supported by the mission case 17, and the fertilization output shaft 56 protrudes from the mission case 17 to the outside. The power of the smallest transmission gear 46 of the planting transmission mechanism 50 is transmitted to the fertilization output shaft 56 via the transmission gear 59 and the fertilization clutch 60. A transmission mechanism 61 that is variable in multiple stages is fixed to the lower portion of the right step 13, and a transmission chain 62 is wound around the output sprocket 56 a fixed to the fertilizer output shaft 56 and the input sprocket 61 a of the transmission mechanism 61. Has been.

  As shown in FIGS. 4 and 7, the left output shaft 61 b extends from the speed change mechanism 61 to the left side, and the left output shaft 61 b of the speed change mechanism 61 is located above the support frame 18 and the transmission belt 23. It extends to the vicinity of the first pump 31a through the lower side. The left output shaft 61b of the speed change mechanism 61 is rotatably supported by a bearing portion 36a connected to the rear bracket 36. The right output shaft 61c extends from the transmission mechanism 61 to the right side and extends in the vicinity of the tenth pump 31j. The bearing portion 36a connected to the rear bracket 36 is connected to the right side of the transmission mechanism 61. The output shaft 61c is rotatably supported.

  As shown in FIG. 7, the first to tenth pumps 31 a to 31 j include a rotor 63 that pumps liquid fertilizer, a drive shaft 64 that is coupled to the rotor 63, and a pair of outer fits that are rotatably fitted to the drive shaft 64. A transmission sprocket 65, a shift member 66 (corresponding to a supply switching unit) that is externally fitted to the drive shaft 64 so as to be integrally rotatable and slidable with a key structure, a spring 67 that urges the shift member 66 to the occlusal side of the transmission sprocket 65, etc. It is configured with. A plug 69 is connected to the uppermost part of the discharge part 68 of the first to tenth pumps 31 a to 31 j, and a supply hose 55 is connected to the plug 69.

  As shown in FIGS. 6 and 7, a clogging sensor 70 for detecting the pressure of the discharge part 68 of the first to tenth pumps 31a to 31j is provided at the lowermost part of the discharge part 68 of the first to tenth pumps 31a to 31j. The clogging sensor 70 is provided with a display unit 70 a (LED or the like) below the clogging sensor 70. As a result, the display unit 70a of the clogging sensor 70 is provided on the right and left lateral sides of the aircraft, and an auxiliary operator on the right or left lateral side of the aircraft can visually check the display unit 70a of the clogging sensor 70 relatively easily. can do.

  4 and 7, the output sprocket 61d is fixed to the end of the left output shaft 61b of the speed change mechanism 61, the transmission sprocket 65 of the first pump 31a, and the left output shaft 61b of the speed change mechanism 61. The transmission chain 71 is wound around the output sprocket 61d, and the transmission chain 71 is wound around the transmission sprocket 65 of the first to fifth pumps 31a to 31e.

  As shown in FIG. 4, the output sprocket 61d is fixed to the end of the right output shaft 61c of the speed change mechanism 61, the transmission sprocket 65 of the tenth pump 31j, and the output sprocket of the right output shaft 61c of the speed change mechanism 61. The transmission chain 71 is wound over 61d, and the transmission chain 71 is wound over the transmission sprocket 65 of the sixth to tenth pumps 31f to 31j.

  As shown in FIGS. 4 and 5, the power between the one-way clutch 44 and the planting transmission mechanism 50 (in the planting transmission mechanism 50, the power of the transmission shaft 26 is shifted in six stages by the operation rod 49, and the transmission shaft is (Power before transmission to 47) (power of transmission gear 46) is transmission gear 59, fertilization clutch 60, fertilization output shaft 56, transmission chain 62, transmission mechanism 61, transmission chain 71, transmission sprocket 65, and shift member 66. Is transmitted to the first to tenth pumps 31a to 31j.

  As shown in FIGS. 4 and 7, the liquid fertilizer enters the suction part 54 of the first to tenth pumps 31 a to 31 j, and the liquid fertilizer becomes the discharge part of the first to tenth pumps 31 a to 31 j by the rotation of the rotor 63. 68, and supplied from the plug 69 to the first to tenth nozzles 32a to 32j via the supply hose 55. By changing the speed of the speed change mechanism 61, the drive speed of the first to tenth pumps 31a to 31j can be changed, and the amount of liquid fertilizer supplied by the first to tenth pumps 31a to 31j can be changed.

  In this case, as shown in FIG. 7, since the plug 69 is connected to the top of the discharge part 68 of the first to tenth pumps 31a to 31j, the suction part 54 and the discharge part of the first to tenth pumps 31a to 31j. Even if air stays in 68, the air is easily pumped from the plug 69 to the supply hose 55. When clogging with liquid fertilizer occurs in the first to tenth nozzles 32a to 32j and the supply hose 55, the pressure of the discharge unit 68 of the first to tenth pumps 31a to 31j in which clogging with liquid fertilizer occurs increases. The display unit 70a of the clogging sensor 70 that has detected the increase in the number is turned on.

[7]
Next, operations of the planting clutch 57 and the fertilizer clutch 60 will be described.
As shown in FIGS. 1, 2, and 3, an operation lever 73 is provided on the right side below the steering handle 72 for steering the right and left front wheels 1, and the operation lever 63 is located on the right side outward. It has been extended. As shown in FIG. 10, the operation lever 73 includes a first ascending position U1 and a second ascending position U2 above the neutral position N, a first descending position D1 and a second descending position D2 below, a rear right marker position R and It is configured to be operable in the cross direction of the front left marker position L, biased to the neutral position N, and the operation position of the operation lever 73 is input to the control device 74.

  Working posture in which right and left markers (not shown) are provided on the right and left lateral sides of the front part of the aircraft, and the right and left markers touch the surface to form an indicator of the next work process And, it is configured to be freely changeable to a retracted posture separated upward from the rice field. An electric motor (not shown) for operating the right and left markers to the action and retracted posture is provided, and the electric motor is operated by the control device 74.

  As shown in FIG. 10, the electric motor 75 that operates the planting clutch 57 in the transmission and disconnection state, the electric motor 76 that operates the fertilization clutch 60 in the transmission and disconnection state, and the control that supplies and discharges hydraulic oil to and from the hydraulic cylinder 4. A valve 77 is provided, and the electric motors 75 and 76 and the control valve 77 are operated by the control device 74.

  As shown in FIG. 10, when the operation lever 73 is operated to the second ascending position U2, the planting and fertilizing clutches 57 and 60 are operated to be disconnected by the electric motors 75 and 76, and automatic lifting control described later is stopped, The right and left markers are operated to the retracted posture, and the seedling planting device 5 is raised to the upper limit position.

As shown in FIG. 10, when the operation lever 73 is operated to the second lowered position D2, the seedling planting device 5 is lowered, and when the grounding float 9 comes into contact with the rice field, the automatic lifting control is activated, and the seedling planting device 5 is operated. Is in contact with the surface and stopped. When the operation lever 73 is operated again to the second lowered position D2, the planting and fertilization clutches 57 and 60 are operated in the transmission state by the electric motors 75 and 76.
When the operation lever 73 is operated to the right marker position R, the right marker is operated to the action posture, and when the operation lever 73 is operated to the left marker position L, the left marker is operated to the action posture.

In this case, automatic elevation control is performed as follows.
A rear portion of the center grounding float 9 is supported by the seedling planting device 5 so as to be swingable up and down, and a potentiometer (not shown) for detecting the height of the center grounding float 9 with respect to the seedling planting device 5 is provided. The detected value of the potentiometer is input to the control device 74. As the aircraft moves, the center ground float 9 follows the surface of the rice field. By detecting the height of the center ground float 9 relative to the seedling planting device 5 based on the detection value of the potentiometer, The height from the float 9) to the seedling planting device 5 can be detected.

  Thereby, based on the height of the center grounding float 9 with respect to the seedling planting device 5 (height from the surface (center grounding float 9) to the seedling planting device 5), the seedling planting device 5 is set from the surface. The hydraulic cylinder 4 is operated by the control valve 77 so that the seedling planting device 5 moves up and down automatically so that the height is maintained (so that the detected value of the potentiometer is maintained at the set value).

  As shown in FIG. 10, when the operating lever 73 is operated to the first ascending position U1, the planting and fertilizing clutches 57 and 60 are operated to be disconnected by the electric motors 75 and 76, the automatic lifting control is stopped, and the right And the left marker is operated to the retracted posture, and the seedling planting device 5 is raised. In this case, the seedling planting device 5 is raised only while the operating lever 73 is operated to the first raised position U1, and when the operating lever 73 is operated from the first raised position U1 to the neutral position N, seedling planting is performed. The ascent of the device 5 stops.

  As shown in FIG. 10, when the operation lever 73 is operated to the first lowered position D1, the seedling planting device 5 is lowered. In this case, the seedling planting device 5 is lowered only while the operation lever 73 is operated to the first lowered position D1, and when the operation lever 73 is operated from the first lowered position D1 to the neutral position N, seedling planting is performed. The descending of the device 5 stops. Thereby, the link mechanism 3 (the seedling planting device 5) can be raised and lowered to an arbitrary height and stopped by operating the operation lever 73 to the first ascending and first descending positions U1, D1.

[8]
Next, a stop structure of the first to tenth pumps 31a to 31j by the operation member 85 will be described.
As shown in FIG. 7, a support pin 78 is attached to the top of each of the first to tenth pumps 31 a to 31 j, and an operation arm 79 is swingably supported on each of the support pins 78. Are engaged with each of the shift members 66 of the first to tenth pumps 31a to 31j.

  As shown in FIGS. 7 and 9, an operation member 85 formed of a piano wire is fixed to the operation arm 79, and the operation member 85 extends upward while being applied to the support pin 78. A cover 80 that covers the transmission sprocket 65, the operation arm 79, and the like is fixed to the support frame 33, and an operation member 85 is passed through a lever guide 80a opened in the cover 80 and extends upward.

  As shown in FIGS. 7 and 9, when the upper part of the operation member 85 is held by hand and moved downward in the drawing plane of FIGS. 7 and 9, the operation arm 79 is swung and the shift member 66 is moved to the transmission sprocket 65. The shift member 66 can be held away from the transmission sprocket 65 by engaging the operation member 85 with the lever guide 80a of the cover 80. Accordingly, each of the first to tenth pumps 31a to 31j can be stopped independently by the operation member 85.

[9]
Next, the structure of the right and left operation units 83 and 84 for operating the shift member 66 of the first to tenth pumps 31a to 31j will be described.
As shown in FIGS. 1, 2, and 3, the support plate 82 extends between the front and rear support frames 14 between the left fertilizer tank 28 (right fertilizer tank 29) and the lowermost reserve seedling base 14 a. Is fixed, and the right and left operation units 83 and 84 are fixed to the support plate 82 so as to face the right and left laterally outer sides.
In this case, since the right and left operation units 83 and 84 are exactly the same as will be described later, the right and left operation units 83 and 84 are opposite to each other in a right and left side view.

  Accordingly, as shown in FIGS. 1 and 2, the right and left operation units 83 and 84 are provided with the right and left fertilizer tanks 28 and 29 and the lowermost reserve seedling platform 14a in the side view and the plan view, respectively. (The right and left operation units 83 and 84 are not arranged so as to protrude above the step 13), get on and off the driver's seat 11 and the floor 16 through the step 13 from the shore. When doing so, the right and left operation units 83 and 84 do not get in the way.

  As shown in FIGS. 1 and 2, the right and left operation units 83 and 84 include lid portions 28a and 29a and breather pipes 28b and 29b of the right and left fertilizer tanks 28 and 29 in a side view and a plan view, respectively. Located between. Accordingly, when the lid portions 28a, 29a of the right and left fertilizer tanks 28, 29 are opened rearward and upward around the rear fulcrum, when the liquid fertilizer is replenished to the right and left fertilizer tanks 28, 29, the right and left The left operation units 83 and 84 do not obstruct the opening and closing of the lid portions 28a and 29a of the right and left fertilizer tanks 28 and 29.

As shown in FIG. 10, the left operation unit 83 includes an electric motor 86 (corresponding to a first actuator), a first cam portion 101, a second cam portion 102, a fifth thread third cam portion 103a, and a first operation portion. 91, the second operation unit 92, and the fifth operation unit 93a for the third line (corresponding to the third operation unit).
The electric motor 86 causes the first cam portion 101, the second cam portion 102, and the fifth cam portion 103a to be rotated integrally and forward and backward, so that the first cam portion 101, the second cam portion 102, The first operation unit 91, the second operation unit 92, and the fifth operation unit 93a for the fifth line are operated by the fifth line third cam unit 103a.

As shown in FIG. 10, the right operation unit 84 includes an electric motor 87 (corresponding to a second actuator), a sixth cam portion 103 b for the sixth thread, a fourth cam portion 104, a fifth cam portion 105, a sixth one for the sixth thread. 3 operation part 93b (equivalent to a 3rd operation part), the 4th operation part 94, and the 5th operation part 95 are provided.
The electric motor 87 integrally rotates the third cam portion 103b, the fourth cam portion 104, and the fifth cam portion 105a for the sixth stripe in the forward and reverse directions. The third cam portion 103b for the sixth stripe, the fourth cam portion. The sixth operation unit 93b, the fourth operation unit 94, and the fifth operation unit 95 are operated by the unit 104 and the fifth cam unit 105.

  In this case, the electric motor 86 and the electric motor 87, the first cam portion 101 and the third cam portion 103b for the sixth thread, the second cam portion 102 and the fourth cam portion 104, the third cam portion 103a for the fifth thread and the fifth cam. The part 105, the first operation unit 91 and the third operation unit 93b for the sixth item, the second operation unit 92 and the fourth operation unit 94, and the fifth operation unit 93a and the fifth operation unit 95 have different names. The right and left operation units 83 and 84 are exactly the same.

  As shown in FIGS. 7, 8, and 10, one connection member 88 is connected across the operation arm 79 (shift member 66) of the first and second pumps 31a and 31b, and the third and fourth pumps 31c and 31d. One connection member 88 is connected across the operation arm 79 (shift member 66), and one connection member 88 is connected to the operation arm 79 (shift member 66) of the fifth pump 31e.

  As shown in FIGS. 7, 8, and 10, a wire 89 (corresponding to a connection mechanism) is connected across the first operation unit 91 and the connection members 88 of the first and second pumps 31 a and 31 b, and the second operation unit 92 and a connection member 88 of the third and fourth pumps 31c and 31d are connected to a wire 89 (corresponding to a connection mechanism) to the third operation portion 93a for the fifth thread and the connection member 88 of the fifth pump 31e. A wire 89 (corresponding to a connection mechanism) is connected.

  As shown in FIG. 10, one connection member 88 is connected to the operation arm 79 (shift member 66) of the sixth pump 31f, and spans the operation arm 79 (shift member 66) of the seventh and eighth pumps 31g and 31h. One connecting member 88 is connected, and one connecting member 88 is connected across the operating arm 79 (shift member 66) of the ninth and tenth pumps 31i, 31j.

  As shown in FIG. 10, a wire 89 (corresponding to a connection mechanism) is connected across the sixth operation part 93b for the sixth thread and the connection member 88 of the sixth pump 31f, and the fourth operation part 94 is connected to the seventh and seventh elements. A wire 89 (corresponding to a connection mechanism) is connected to the connection member 88 of the eight pumps 31g and 31h, and a wire 89 is connected to the connection member 88 of the fifth operation unit 95 and the ninth and tenth pumps 31i and 31j. (Equivalent to a connection mechanism) is connected.

With the above structure, as shown in FIGS. 1, 2, 3, and 10, the left fertilizer tank 28, the left operation unit 83 (the electric motor 86, the first operation unit 91, the second operation unit 92, and the fifth item 3 operating portion 93a, first cam portion 101, second cam portion 102, fifth thread third cam portion 103a), first to fifth pumps 31a to 31e, and shift member 66 are provided at the front of the left side of the machine body. It has been.
Right fertilizer tank 29, right operation unit 84 (electric motor 87, third operation part 93b for the sixth thread, fourth operation part 94, fifth operation part 95, third cam part 103b for the sixth thread, fourth cam part 104, 5th cam part 105), 6th-10th pumps 31f-31j, and the shift member 66 are provided in the front part of the right side part of an airframe.

[10]
Next, the operation of the right and left operation units 83 and 84 will be described.
As shown in FIG. 10, in the left operation unit 83, when the electric motor 86 is in the neutral position, the first operation unit 91, the second operation unit 92, and the third operation unit 93a for the third line are not operated. It becomes.
By rotating the electric motor 86 by a predetermined angle in the positive direction from the neutral position, the first operation unit 91, the second operation unit 92, and the fifth operation unit 93a for the third line are sequentially operated. When the electric motor 86 rotates by a predetermined angle in the reverse direction toward the neutral position, the fifth thread third operation unit 93a, the second operation unit 92, and the first operation unit 91 are sequentially returned.

  As shown in FIG. 10, when the electric motor 86 rotates by a predetermined angle in the reverse direction from the neutral position, the fifth operation unit 93a, the second operation unit 92, and the first operation unit 91 are sequentially operated. Therefore, from this state, when the electric motor 86 rotates in the positive direction by a predetermined angle toward the neutral position, the first operation unit 91, the second operation unit 92, and the third operation unit 93a for the third line are sequentially turned. A return operation is performed.

As shown in FIG. 10, in the right operation unit 84, when the electric motor 87 is in the neutral position, the sixth item third operation unit 93b, the fourth operation unit 94, and the fifth operation unit 95 are not operated. Become.
By rotating the electric motor 87 by a predetermined angle in the forward direction from the neutral position, the sixth operation unit 93b, the fourth operation unit 94, and the fifth operation unit 95 are sequentially operated. When the motor 87 rotates by a predetermined angle in the reverse direction toward the neutral position, the fifth operation unit 95, the fourth operation unit 94, and the sixth operation third operation unit 93b are operated to return in order.

  As shown in FIG. 10, when the electric motor 87 rotates by a predetermined angle in the reverse direction from the neutral position, the fifth operation unit 95, the fourth operation unit 94, and the sixth operation third operation unit 93b are sequentially operated. From this state, when the electric motor 87 rotates by a predetermined angle in the forward direction toward the neutral position, the sixth operation section 93b, the fourth operation section 94, and the fifth operation section 95 are returned in order. Is done.

[11]
Next, the stop operation of the first to tenth pumps 31a to 31j by the right and left operation units 83 and 84 will be described (No. 1).
As shown in FIGS. 1 and 10, a push-on / push-off type first clutch switch 81a, second clutch switch 81b, third clutch switch 81c, fourth clutch switch 81d, and fifth clutch switch 81e are provided as steering handles. The operation signals of the first to fifth clutch switches 81 a to 81 e are input to the control device 74.
Thus, when the first clutch switch 81a to the fifth clutch switch 81e are sequentially pushed (ON operation), the electric motors 86 and 87 are operated by the control device 74 as described below.

As shown in FIG. 10, it is assumed that the first to tenth pumps 31 a to 31 j are in a driving state (a state where all the shift members 66 are engaged with the driving sprocket 65).
In this state, as shown in FIG. 11, when the first clutch switch 81 a is pressed (ON operation), the electric motor 86 rotates in the positive direction by a predetermined angle, and the first cam portion 101 causes the first operation portion 91 to move. When operated, the wire 89 is pulled, the shift member 66 of the first and second pumps 31a, 31b is moved away from the drive sprocket 65, and the first and second pumps 31a, 31b are stopped.

  Next, as shown in FIG. 12, when the second clutch switch 81 b is pushed (ON operation), the electric motor 86 is further rotated by a predetermined angle in the forward direction, and the second operation portion 92 is operated by the second cam portion 102. Then, the wire 89 is pulled, the shift members 66 of the third and fourth pumps 31c, 31d are moved away from the drive sprocket 65, and the third and fourth pumps 31c, 31d are stopped (the first cam portion 101). Thus, the first and second pumps 31a and 31b are maintained in a stopped state).

  Next, as shown in FIG. 13, when the third clutch switch 81c is pushed (ON operation), the electric motor 86 is further rotated by a predetermined angle in the forward direction, and the fifth thread third cam portion 103a causes the fifth thread for the fifth thread. The third operating portion 93a is operated, the wire 89 is pulled, the shift member 66 of the fifth pump 31e is moved away from the drive sprocket 65, and the fifth pump 31e is stopped.

  At the same time, the electric motor 87 rotates by a predetermined angle in the forward direction, the sixth thread third cam section 103b operates the sixth thread third operation section 93b, the wire 89 is pulled, and the sixth pump 31f The shift member 66 is operated to move away from the drive sprocket 65, and the sixth pump 31f stops (the first to fourth pumps 31a to 31d are maintained in the stopped state by the first and second cam portions 101 and 102).

  Next, as shown in FIG. 14, when the fourth clutch switch 81 d is pushed (ON operation), the electric motor 87 further rotates in the forward direction by a predetermined angle, and the fourth cam portion 104 operates the fourth operation portion 94. Then, the wire 89 is pulled, the shift members 66 of the seventh and eighth pumps 31g and 31h are moved away from the drive sprocket 65, and the seventh and eighth pumps 31g and 31h are stopped (first and second). The first to sixth pumps 31a to 31f are maintained in a stopped state by the cam portions 101, 102, the fifth and sixth third cam portions 103a, 103b.

  Next, as shown in FIG. 15, when the fifth clutch switch 81 e is pushed (ON operation), the electric motor 87 further rotates in the forward direction by a predetermined angle, and the fifth operation unit 95 is operated by the fifth cam unit 105. Then, the wire 89 is pulled, the shift member 66 of the ninth and tenth pumps 31i, 31j is moved away from the drive sprocket 65, and the ninth and tenth pumps 31i, 31j are stopped (first and second). The first to eighth pumps 31a to 31h are maintained in the stopped state by the cam portions 101, 102, the fifth and sixth third cam portions 103a, 103b, and the fourth cam portion 104).

  In the above state, the first clutch switch 81a is not pushed (ON operation) and the second clutch switch 81b is not pushed (ON operation). As shown in FIGS. The first clutch switch 81a to the fifth clutch switch 81e are sequentially pushed (ON operation).

  Next, as shown in FIGS. 15 to 10, when the fifth clutch switch 81e is sequentially pushed (OFF operation) from the first clutch switch 81a, the electric motors 86 and 87 are rotated by a predetermined angle in the opposite direction, The tenth and ninth pumps 31j and 31i, the eighth and seventh pumps 31h and 31g, the sixth and fifth pumps 31f and 31e, the fourth and third pumps 31d and 31c, and the second and first pumps 31b and 31a Return to the driving state in order.

[12]
Next, the stop operation of the first to tenth pumps 31a to 31j by the right and left operation units 83 and 84 will be described (No. 2).
When the fifth clutch switch 81e is sequentially pushed (ON operation) from the first clutch switch 81a, the control motor 74 operates the electric motors 86 and 87 as described below.

As shown in FIG. 10, it is assumed that the first to tenth pumps 31 a to 31 j are in a driving state (a state where all the shift members 66 are engaged with the driving sprocket 65).
In this state, when the fifth clutch switch 81e is pushed (ON operation), the electric motor 87 rotates by a predetermined angle in the reverse direction, the fifth operation unit 95 is operated by the fifth cam unit 105, and the wire 89 is When the pulling operation is performed, the shift members 66 of the tenth and ninth pumps 31j and 31i are operated away from the drive sprocket 65, and the tenth and ninth pumps 31j and 31i are stopped.

  Next, when the fourth clutch switch 81d is pushed (ON operation), the electric motor 87 is further rotated by a predetermined angle in the reverse direction, the fourth operation portion 94 is operated by the fourth cam portion 104, and the wire 89 is When the pulling operation is performed, the shift members 66 of the eighth and seventh pumps 31h and 31g are moved away from the drive sprocket 65, and the eighth and seventh pumps 31h and 31g are stopped (the fifth cam portion 105 causes the tenth and tenth pumps to move). 9 pumps 31j and 31i are maintained in a stopped state).

  Next, when the third clutch switch 81c is pushed (ON operation), the electric motor 87 is further rotated by a predetermined angle in the reverse direction, and the sixth operation part 93b for the sixth item is moved by the third cam part 103b for the sixth item. When operated, the wire 89 is pulled, the shift member 66 of the sixth pump 31f is moved away from the drive sprocket 65, and the sixth pump 31f stops.

  At the same time, the electric motor 86 rotates in the opposite direction by a predetermined angle, the fifth thread third cam section 103a operates the fifth thread third operation section 93a, the wire 89 is pulled, and the fifth pump 31e The shift member 66 is operated to move away from the drive sprocket 65, and the fifth pump 31e is stopped (the fifth and fourth cam portions 105 and 104 maintain the tenth to seventh pumps 31j to 31g in a stopped state).

  Next, when the second clutch switch 81b is pressed (ON operation), the electric motor 86 is further rotated by a predetermined angle in the reverse direction, the second operation portion 92 is operated by the second cam portion 102, and the wire 89 is When the pulling operation is performed, the shift members 66 of the fourth and third pumps 31d and 31c are moved away from the drive sprocket 65, and the fourth and third pumps 31d and 31c are stopped (the fifth and fourth cam portions 105 and 104). The sixth to fifth pumps 31j to 31e are maintained in a stopped state by the sixth and fifth third cam portions 103b and 103a).

  Next, when the first clutch switch 81a is pushed (ON operation), the electric motor 86 further rotates by a predetermined angle in the reverse direction, the first cam portion 101 is operated by the first cam portion 101, and the wire 89 is When the pulling operation is performed, the shift members 66 of the second and first pumps 31b and 31a are moved away from the drive sprocket 65, and the second and first pumps 31b and 31a are stopped (the fifth and fourth cam portions 105 and 104). The sixth and third pumps 31j to 31c are maintained in the stopped state by the third and third cam portions 103b and 103a and the second cam portion 102 for the sixth and fifth stripes).

In the above state, the fourth clutch switch 81d is not pushed (ON) without pushing the fifth clutch switch 81e (ON), and the fifth clutch switch 81e to the first clutch switch are not pushed. Push operations (ON operation) sequentially to 81a.
Next, when the first clutch switch 81a to the fifth clutch switch 81e are sequentially pushed (OFF operation), the electric motors 86 and 87 rotate in the positive direction by a predetermined angle, and the first and second pumps 31a and 31b, The third and fourth pumps 31c and 31d, the fifth and sixth pumps 31e and 31f, the seventh and eighth pumps 31g and 31h, and the ninth and tenth pumps 31i and 31j are sequentially returned to the drive state.

[13]
Next, the first, second, third, fourth, and fifth minority clutches 90a, 90b, 90c, 90d, and 90e and the first, second, third, fourth, and fifth longitudinal clutches 96a, 96b, 96c, 96d, and 96e will be described. To do.
As shown in FIGS. 2 and 10, each planting case of transmission case 6 (1st and 2nd, 3rd and 4th, 5th and 6th, 7th and 8th, 9th and 10th) 7, first to fifth minority clutches 90a to 90e are provided in order from the left transmission case 6. The first to fifth minority clutches 90a to 90e are operated in one transmission case 6 by operating power to the two planting cases 7 to transmit and shut off the two planting cases 7 (first and second, Acts 3 and 4 and 5 and 6 and 7 and 8 and 9 and 10).

  As shown in FIG. 2, a pair of endless rotating belt type vertical feed mechanisms 97 are provided on each of the seedling setting surfaces of the seedling setting table 10, and two adjacent seedling setting surfaces of the seedling setting table 10 are provided. The vertical feed mechanism 97 is configured to operate integrally, and five sets of the vertical feed mechanisms 97 (first and second, third and fourth, fifth and sixth, seventh and eighth, ninth, and Article 10) is configured. When the seedling platform 10 reaches the movement limit of the right and left reciprocating lateral feed driving, the vertical feed mechanism 97 is driven by a predetermined amount, and the seedling placed on the seedling platform 10 is placed below the seedling platform 10. Sent.

  As shown in FIG. 10, the first to fifth vertical feed clutches 96a to 96e are provided in order from the left for each of the five sets of vertical feed mechanisms 97, and the first to fifth vertical feed clutches 96a to 96e are provided. Operates and stops 5 sets of vertical feed mechanisms 97 (1st and 2nd, 3rd and 4th, 5th and 6th, 7th and 8th, 9th and 10th).

  Thereby, as shown in FIG.2 and FIG.4, the 1st and 2nd pumps 31a and 31b, the 1st small number of clutches 90a, and the 1st vertical feed clutch 96a respond | correspond. The third and fourth pumps 31c, 31d correspond to the second minority clutch 90b and the second longitudinal feed clutch 96b. The fifth and sixth pumps 31e and 31f correspond to the third minority clutch 90c and the third longitudinal feed clutch 96c. The seventh and eighth pumps 31g and 31h correspond to the fourth minority number clutch 90d and the fourth longitudinal feed clutch 96d. The ninth and tenth pumps 31i, 31j correspond to the fifth minority clutch 90e and the fifth longitudinal feed clutch 96e.

[14]
Next, the operation of the first to fifth minority clutches 90a to 90e and the first to fifth longitudinal feed clutches 96a to 96e will be described.
As shown in FIG. 10, when the first clutch switch 81a is pushed in turn (ON operation) from the first clutch switch 81a to the fifth clutch switch 81e, the control device 74 and the electric motor 98 cause the first to fifth minority clutches 90a to 90e and The first to fifth longitudinal feed clutches 96a to 96e are operated as described below.

As shown in FIG. 10, it is assumed that the first to fifth minority clutches 90a to 90e and the first to fifth longitudinal feed clutches 96a to 96e are in a transmission state.
In this state, when the first clutch switch 81a is pushed (ON operation), the electric motor 98 operates the first small number of strips and the longitudinal feed clutches 90a and 96a to be in a disconnected state.

Next, when the second clutch switch 81b is pressed (ON operation), the electric motor 98 operates the second minority and longitudinal feed clutches 90b and 96b to be disconnected (first minority and longitudinal feed clutches 90a and 96a). Is kept shut off).
Next, when the third clutch switch 81c is pushed (ON operation), the third minority number and the longitudinal feed clutches 90c, 96c are operated to be disconnected by the electric motor 98 (first, second minority number and the longitudinal feed clutch 90a). , 90b, 96a, and 96b are maintained in the cut-off state).

  Next, when the fourth clutch switch 81d is pushed (ON operation), the electric motor 98 operates the fourth minority number and the longitudinal feed clutches 90d and 96d to be disconnected (the first, second and third minority numbers and the longitudinal feed). The clutches 90a, 90b, 90c, 96a, 96b, 96c are maintained in the disconnected state).

  Next, when the fifth clutch switch 81e is pushed (ON operation), the fifth minority number and the longitudinal feed clutches 90e, 96e are operated to be disconnected by the electric motor 98 (first, second, third, fourth minority and The longitudinal feed clutches 90a, 90b, 90c, 90d, 96a, 96b, 96c, and 96d are maintained in the disconnected state).

  In the above state, the first clutch switch 81a is not pushed (ON operation) and the second clutch switch 81b is not pushed (ON operation). As shown in FIG. The push operation (ON operation) is sequentially performed from the switch 81a to the fifth clutch switch 81e.

  Next, as shown in FIG. 10, when the fifth clutch switch 81e is sequentially pushed (OFF operation) from the first clutch switch 81a, the electric motor 98 causes the fifth minority and longitudinal feed clutches 90e, 96e, fourth, The minority and longitudinal feed clutches 90d and 96d, the third minority and longitudinal feed clutches 90c and 96c, the second minority and longitudinal feed clutches 90b and 96b, and the first minority and longitudinal feed clutches 90a and 96a are sequentially transmitted. To be operated.

  Similarly to the above, in the transmission state of the first to fifth minority clutches 90a to 90e and the first to fifth longitudinal feed clutches 96a to 96e, the fifth clutch switch 81e is sequentially pushed to the first clutch switch 81a (ON operation). ), The fifth minority and longitudinal feed clutches 90e and 96e, the fourth minority and longitudinal feed clutches 90d and 96d, the third minority and longitudinal feed clutches 90c and 96c, and the second minority and longitudinal feed clutches 90b and 96b. The first small number of strips and the longitudinal feed clutches 90a and 96a are sequentially operated to be disconnected.

  Next, when the first clutch switch 81a is sequentially pushed to the fifth clutch switch 81e (OFF operation), the first minority and longitudinal feed clutches 90a and 96a, the second minority and longitudinal feed clutches 90b and 96b, The third minority and longitudinal feed clutches 90c and 96c, the fourth minority and longitudinal feed clutches 90d and 96d, and the fifth minority and longitudinal feed clutches 90e and 96e are sequentially operated in the transmission state.

[First Alternative Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention], instead of the right and left operation units 83 and 84 and the electric motor 98, the following configuration may be used.
As shown in FIG. 16, the first and second operation levers 83 and 84 and the electric motor 98 are abolished, and the first minority lever 111 (corresponding to the first operation section) and the second minority are operated artificially. Strip lever 112 (corresponding to the second operating portion), third minority lever 113 (corresponding to the third operating portion), fourth minority lever 114 (corresponding to the fourth operating portion), fifth minority lever 115 (first portion) 5 equivalent to the operation section) is provided in the rear portion of the driver's seat 11 in the fuselage.

As shown in FIG. 16, a wire 89 (corresponding to a connection mechanism) is connected across the first minority lever 111 and the connection members 88 of the first and second pumps 31a and 31b, and the first minority lever 111 and A wire 99 is connected across the first small number of strips and the longitudinal feed clutches 90a and 96a.
A wire 89 (corresponding to a connection mechanism) is connected across the second minority lever 112 and the connection member 88 of the third and fourth pumps 31c, 31d, and the second minority lever 112, the second minority stripe and the longitudinal feed A wire 99 is connected across the clutches 90b and 96b.

As shown in FIG. 16, a wire 89 (corresponding to a connection mechanism) is connected across the third minority lever 113, the connection member 88 of the fifth pump 31e, and the connection member 88 of the sixth pump 31f, and the third minority A wire 99 is connected across the strip lever 113 and the third minority strip and the longitudinal feed clutches 90c and 96c.
A wire 89 (corresponding to a connection mechanism) is connected across the fourth minority lever 114 and the connecting member 88 of the seventh and eighth pumps 31g and 31h. A wire 99 is connected across the clutches 90d and 96d.
A wire 89 (corresponding to a connection mechanism) is connected across the fifth minority lever 115 and the connecting member 88 of the ninth and tenth pumps 31i, 31j, and the fifth minority lever 115, the fifth minority strip and the longitudinal feed. A wire 99 is connected across the clutches 90e and 96e.

  With the above structure, by operating the first to fifth minority levers 111 to 115, the first and second pumps 31a and 31b, the third and fourth pumps 31c and 31d, the fifth and sixth pumps 31e and 31f. The seventh and eighth pumps 31g and 31h, the ninth and tenth pumps 31i and 31j can be operated in the driven and stopped states, and the first to fifth minority clutches 90a to 90e, the first to fifth longitudinals The feed clutches 96a to 96e can be operated in the transmission and disconnected states.

[Second Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] [First Another Mode of Carrying Out the Invention], a ten-row riding rice transplanter is shown. In contrast, a six-row riding rice transplanter will be described below.

[1]
The seedling planting device 5 of the 6-row riding type rice transplanter includes three transmission cases 6, a planting case 7 supported rotatably on the right and left sides of the rear portion of the transmission case 6, and a planting case 7 A pair of planting arms 8 provided at both ends, three grounding floats 9, a seedling platform 10 and the like.

  As shown in FIG. 17, the first, second, third, fourth, fifth and sixth strips ((1) to (6)) from the left in the traveling direction of the aircraft. First to sixth nozzles 32a to 32f (corresponding to supply positions) are provided so as to correspond to the first to sixth lines, and between the third line (third nozzle 32c) and the fourth line (fourth nozzle 32d). In addition, the left and right center position of the aircraft is located.

[2]
Next, the right and left fertilizer tanks 28 and 29, the first to sixth pumps 31a to 31f, and the right and left operation units 83 and 84 will be described in [Second Alternative Embodiment of the Invention].
As shown in FIGS. 17 and 18, the left fertilizer tank 28 (corresponding to the first reservoir), the first, second and third pumps 31a, 31b, 31c (corresponding to the feeding part), and the left operation unit 83 are the body. It is provided in the front part of the left side part. The right fertilizer tank 29 (corresponding to the second storage part), the fourth, fifth and sixth pumps 31d, 31e, 31f (corresponding to the feeding part), and the right operation unit 84 are provided at the front part on the left side of the fuselage. Yes.

  As shown in FIG. 18, the left operation unit 83 includes an electric motor 86 (corresponding to a first actuator), a first operation unit 121, a third operation second operation unit 122a, a first cam unit 131, and a third operation unit. A two cam portion 132a (corresponding to the second operation portion) is provided. The first cam portion 131 and the third thread second cam portion 132a are integrally rotated in the forward and reverse directions by the electric motor 86, and the first cam portion 131 and the third thread second cam portion 132a are driven by the first cam portion 131a. The operation unit 121 and the third line second operation unit 122a are operated.

  As shown in FIG. 18, the right operation unit 84 includes an electric motor 87 (corresponding to the second actuator), a second operation part 122 b (corresponding to the second operation part), a third operation part 123, and a fourth operation. A second cam portion 132b and a third cam portion 133 are provided. The electric motor 87 integrally rotates the second cam portion 132b and the third cam portion 133 for the fourth line in the forward and reverse directions, and the fourth line is driven by the second cam portion 132b for the fourth line and the third cam portion 133. The second operation unit 122b and the third operation unit 123 are operated.

  In this case, the electric motor 86 and the electric motor 87, the first cam portion 131 and the fourth cam second cam portion 132b, the third rib second cam portion 132a and the third cam portion 123, the first operation portion 121 and the fourth gear. The second operation unit 122b, the second operation unit 122a for the third line, and the third operation unit 123 are the same except for the names, and the right and left operation units 83 and 84 are exactly the same.

As shown in FIG. 18, one connection member 88 is connected across the operation arm 79 (shift member 66) of the first and second pumps 31a and 31b, and the operation arm 79 (shift member 66) of the third pump 31c. One connecting member 88 is connected to each other.
A wire 89 (corresponding to a connection mechanism) is connected across the first operation unit 121 and the connection member 88 of the first and second pumps 31a and 31b, and the connection between the second operation unit 122a for the third thread and the third pump 31c. A wire 89 (corresponding to a connection mechanism) is connected across the member 88.

As shown in FIG. 18, one connecting member 88 is connected to the operating arm 79 (shift member 66) of the fourth pump 31d, and spans the operating arm 79 (shift member 66) of the fifth and sixth pumps 31e, 31f. One connecting member 88 is connected.
A wire 89 (corresponding to a connection mechanism) is connected between the fourth operation part 122b for the fourth thread and the connection member 88 of the fourth pump 31d, and the connection between the third operation part 123 and the fifth and sixth pumps 31e and 31f. A wire 89 (corresponding to a connection mechanism) is connected across the member 88.

[3]
Next, the operation of the right and left operation units 83 and 84 will be described in [Second Another Embodiment of the Invention].
As shown in FIG. 18, in the left operation unit 83, when the electric motor 86 is in the neutral position, the first operation unit 121 and the third second operation unit 122a are not operated.
When the electric motor 86 is rotated by a predetermined angle in the forward direction from the neutral position, the first operation unit 121 and the second operation unit 122a for the third line are sequentially operated. From this state, the electric motor 86 is moved to the neutral position. The second operation unit 122a for the third stripe and the first operation unit 121 are returned in order by rotating in the reverse direction by a predetermined angle toward the direction.

  As shown in FIG. 18, when the electric motor 86 rotates by a predetermined angle in the reverse direction from the neutral position, the second operation unit 122a for the third stripe and the first operation unit 121 are sequentially operated. When the electric motor 86 is rotated by a predetermined angle in the forward direction toward the neutral position, the first operation unit 121 and the second operation unit 122a for the third line are sequentially returned.

As shown in FIG. 18, in the right operation unit 84, when the electric motor 87 is in the neutral position, the second operation unit 122b for the fourth thread and the third operation unit 123 are not operated.
By rotating the electric motor 87 by a predetermined angle in the forward direction from the neutral position, the second operation unit 122b for the fourth thread and the third operation unit 123 are sequentially operated. From this state, the electric motor 87 is moved to the neutral position. The third operation unit 123 and the fourth second operation unit 122b are sequentially returned and rotated by rotating in a reverse direction by a predetermined angle toward the first direction.

  As shown in FIG. 18, when the electric motor 87 rotates by a predetermined angle in the reverse direction from the neutral position, the third operation portion 123 and the fourth operation portion for the second stripe 122b are sequentially operated. When the electric motor 87 rotates toward the neutral position by a predetermined angle in the positive direction, the second operation unit 122b for the fourth thread and the second operation unit 123 are sequentially returned.

[4]
Next, a stop operation of the first to sixth pumps 31a to 31f by the right and left operation units 83 and 84 will be described in [Second alternative embodiment of the invention] (No. 1).
As shown in FIGS. 1 and 18, the first clutch switch 81a, the second clutch switch 81b, and the third clutch switch 81c of the push-on / push-off type are laterally moved laterally below the rear side of the steering handle 72. The operation signals of the first, second, and third clutch switches 81a, 81b, and 81c are input to the controller 74.
Thus, when the first, second, and third clutch switches 81a, 81b, and 81c are sequentially pushed (ON operation), the electric motors 86 and 87 are operated by the control device 74 as described below.

As shown in FIG. 18, it is assumed that the first to sixth pumps 31a to 31f are in a driving state (a state in which all the shift members 66 are engaged with the driving sprocket 65).
In this state, when the first clutch switch 81a is pressed (ON operation), the electric motor 86 rotates in the forward direction by a predetermined angle, the first cam portion 131 operates the first operation portion 121, and the wire 89 is When the pulling operation is performed, the shift members 66 of the first and second pumps 31a and 31b are operated away from the drive sprocket 65, and the first and second pumps 31a and 31b are stopped.

  Next, as shown in FIG. 18, when the second clutch switch 81b is pushed (ON operation), the electric motor 86 is further rotated by a predetermined angle in the forward direction, and the third cam portion 132a is used for the third stripe. 2 The operation unit 122a is operated, the wire 89 is pulled, the shift member 66 of the third pump 31c is moved away from the drive sprocket 65, and the third pump 31c is stopped.

  At the same time, the electric motor 87 is rotated by a predetermined angle in the forward direction, the second thread second cam part 132b is operated, the fourth thread second operation part 122b is operated, the wire 89 is pulled, and the fourth pump 31d The shift member 66 is operated to move away from the drive sprocket 65, and the fourth pump 31d stops (the first and second pumps 31a and 31b are maintained in the stopped state by the first cam portion 131).

  Next, as shown in FIG. 18, when the third clutch switch 81 c is pressed (ON operation), the electric motor 87 further rotates in the forward direction by a predetermined angle, and the third operation portion 123 is operated by the third cam portion 133. Then, the wire 89 is pulled, the shift members 66 of the fifth and sixth pumps 31e and 31f are moved away from the drive sprocket 65, and the fifth and sixth pumps 31e and 31f are stopped (the first cam portion 131). The first to fourth pumps 31a to 31d are maintained in a stopped state by the third and fourth second cam portions 132a and 132b).

  Next, as shown in FIG. 18, when the third, second, and first clutch switches 81c, 81b, and 81a are sequentially pressed (OFF operation), the electric motors 86 and 87 rotate in the opposite directions by a predetermined angle, The sixth and fifth pumps 31f and 31e, the fourth and third pumps 31d and 31c, and the second and first pumps 31b and 31a are sequentially returned to the drive state.

[5]
Next, in [Second Another Embodiment of the Invention], a stop operation of the first to sixth pumps 31a to 31f by the right and left operation units 83 and 84 will be described (No. 2).
When the third, second, and first clutch switches 81c, 81b, and 81a are sequentially pressed (ON operation), the electric motors 86 and 87 are operated by the controller 74 as described below.

As shown in FIG. 18, it is assumed that the first to sixth pumps 31a to 31f are in a driving state (a state in which all the shift members 66 are engaged with the driving sprocket 65).
In this state, when the third clutch switch 81c is pushed (ON operation), the electric motor 87 rotates by a predetermined angle in the reverse direction, the third operation portion 123 is operated by the third cam portion 133, and the wire 89 is connected. When the pulling operation is performed, the shift members 66 of the sixth and fifth pumps 31f and 31e are operated away from the drive sprocket 65, and the sixth and fifth pumps 31f and 31e are stopped.

  Next, as shown in FIG. 18, when the second clutch switch 81b is pressed (ON operation), the electric motor 87 is further rotated by a predetermined angle in the reverse direction, and the fourth cam second section 132b is used for the fourth thread. 2 The operation unit 122b is operated, the wire 89 is pulled, the shift member 66 of the fourth pump 31d is moved away from the drive sprocket 65, and the fourth pump 31d is stopped.

  At the same time, the electric motor 86 is rotated by a predetermined angle in the reverse direction, the second operation part 122a for the third line is operated by the second cam part 132a for the third line, the wire 89 is pulled, and the third pump 31c The shift member 66 is operated to move away from the drive sprocket 65, and the third pump 31c stops (the sixth and fifth pumps 31f and 31e are maintained in the stopped state by the third cam portion 133).

  Next, as shown in FIG. 18, when the first clutch switch 81 a is pressed (ON operation), the electric motor 86 further rotates by a predetermined angle in the reverse direction, and the first operation unit 121 is operated by the first cam unit 131. Then, the wire 89 is pulled, the shift members 66 of the second and first pumps 31b and 31a are moved away from the drive sprocket 65, and the second and first pumps 31b and 31a are stopped (third cam portion 133). The sixth to third pumps 31j to 31c are maintained in a stopped state by the fourth and third second cam portions 132b and 132a).

  Next, as shown in FIG. 18, when the first, second, and third clutch switches 81a, 81b, and 81c are sequentially pushed (OFF operation), the electric motors 86 and 87 rotate in the positive direction by a predetermined angle, and the first The first and second pumps 31a and 31b, the third and fourth pumps 31c and 31d, and the fifth and sixth pumps 31e and 31f return to the driving state in order.

[6]
Next, in [Second Another Embodiment of the Invention], the first, second, and third minority clutches 90a, 90b, and 90c and the first, second, and third longitudinal feed clutches 96a, 96b, and 96c will be described.
As shown in FIG. 18, first, second, and third minority clutches 90a, 90b, and 90c are sequentially provided from the left transmission case 6, and the first to third minority clutches 90a, 90b, and 90c are provided as one. In the transmission case 6, the two planting cases 7 (first and second, third and fourth, fifth, and sixth) are operated by operating the power to the two planting cases 7 in a transmission and shut-off state. Operate and stop operation.

  For each of the three sets of vertical feed mechanisms 97, first, second, and third vertical feed clutches 96a, 96b, and 96c are provided in order from the left, and the first, second, and third vertical feed clutches 96a, 96b, 96c operates and stops the three sets of longitudinal feed mechanisms 97 (first and second, third and fourth, fifth and sixth).

  As a result, as shown in FIG. 18, the first and second pumps 31a and 31b correspond to the first minority clutch 90a and the first longitudinal feed clutch 96a. The third and fourth pumps 31c, 31d correspond to the second minority clutch 90b and the second longitudinal feed clutch 96b. The fifth and sixth pumps 31e and 31f correspond to the third minority clutch 90c and the third longitudinal feed clutch 96c.

[7]
Next, the operation of the first, second and third minority clutches 90a, 90b and 90c and the first, second and third longitudinal feed clutches 96a, 96b and 96c will be described in [Second Another Embodiment of the Invention].
When the first, second, and third clutch switches 81a, 81b, and 81c are sequentially pushed (ON operation), the first, second, and third minority clutches 90a, 90b, and 90c and the first clutch are driven by the controller 74 and the electric motor 98. 1, 2, 3 vertical feed clutch 96a, 96b, 96c is operated as described below.

As shown in FIG. 18, it is assumed that the first, second, and third minority clutches 90a, 90b, and 90c and the first, second, and third longitudinal feed clutches 96a, 96b, and 96c are in a transmission state.
In this state, when the first clutch switch 81a is pushed (ON operation), the electric motor 98 operates the first small number of strips and the longitudinal feed clutches 90a and 96a to be in a disconnected state.

Next, as shown in FIG. 18, when the second clutch switch 81b is pushed (ON operation), the second small number of strips and the longitudinal feed clutches 90b and 96b are operated to be disconnected by the electric motor 98 (first small number of strips and The longitudinal feed clutches 90a and 96a are maintained in the disconnected state).
Next, when the third clutch switch 81c is pushed (ON operation), the third minority number and the longitudinal feed clutches 90c, 96c are operated to be disconnected by the electric motor 98 (first, second minority number and the longitudinal feed clutch 90a). , 90b, 96a, and 96b are maintained in the cut-off state).

  Next, as shown in FIG. 18, when the third, second, and first clutch switches 81c, 81b, and 81a are sequentially pressed (OFF operation), the electric motor 98 causes the third minority and longitudinal feed clutches 90c and 96c, The second minority and longitudinal feed clutches 90b and 96b, and the first minority and longitudinal feed clutches 90a and 96a are sequentially operated in the transmission state.

  As described above, in the transmission state of the first, second and third minority clutches 90a, 90b and 90c and the first, second and third longitudinal feed clutches 96a, 96b and 96c, as shown in FIG. When one clutch switch 81c, 81b, 81a is pushed in turn (ON operation), the third minority and longitudinal feed clutch 90c, 96c, the second minority and longitudinal feed clutch 90b, 96b, the first minority and longitudinal feed The clutches 90a and 96a are operated in turn in the disconnected state.

  Next, as shown in FIG. 18, when the first, second, and third clutch switches 81a, 81b, and 81c are sequentially pushed (OFF operation), the first minority and longitudinal feed clutches 90a and 96a, the second minority and The longitudinal feed clutches 90b and 96b, the third minority strip, and the longitudinal feed clutches 90c and 96c are sequentially operated to the transmission state.

[Third Another Embodiment of the Invention]
In the above-mentioned [second alternative embodiment of the invention], instead of the right and left operation units 83 and 84 and the electric motor 98, the following configuration may be adopted.
As shown in FIG. 19, the first and second operation levers 83 and 84 and the electric motor 98 are abolished, and the first minority lever 111 (corresponding to the first operation portion) and the second minority are operated artificially. A strip lever 112 (corresponding to the second operation portion) and a third minority lever 113 (corresponding to the third operation portion) are provided in the rear portion of the driver's seat 11 in the fuselage.

  As shown in FIG. 19, a wire 89 (corresponding to a connection mechanism) is connected across the first minority lever 111 and the connection members 88 of the first and second pumps 31a and 31b, and the first minority lever 111 and A wire 99 is connected across the first small number of strips and the longitudinal feed clutches 90a and 96a.

As shown in FIG. 19, a wire 89 (corresponding to a connection mechanism) is connected across the second minority lever 112, the connection member 88 of the third pump 31c, and the connection member 88 of the fourth pump 31d, and the second minority A wire 99 is connected across the strip lever 113 and the second minority strip and the longitudinal feed clutches 90b and 96b.
A wire 89 (corresponding to a connection mechanism) is connected across the third minority lever 113 and the connection member 88 of the fifth and sixth pumps 31e and 31f, and the third minority lever 113, the fifth minority strip and the longitudinal feed A wire 99 is connected across the clutches 90c and 96c.

  By operating the first, second and third minority levers 111, 112, and 113 with the above structure, the first and second pumps 31a and 31b, the third and fourth pumps 31c and 31d, the fifth and the sixth pumps are operated. The pumps 31e and 31f can be operated to be driven and stopped, and the first and second and third minority clutches 90a, 90b and 90c and the first and second and third longitudinal feed clutches 96a, 96b and 96c are transmitted and Can be operated in the shut-off state.

[Fourth Embodiment of the Invention]
In the above-mentioned [Best Mode for Carrying Out the Invention] [First Alternative Embodiment of the Invention] [Second Alternative Embodiment of the Invention] [Third Alternative Embodiment of the Invention] The first to tenth pumps 31a to 31j may not be stopped by operating the clutch switches 81a to 81e (first to fifth minority levers 111 to 115), but may be configured as follows.

In FIG. 7, a bypass path (not shown) for connecting the discharge section 68 and the suction section 54 (or the left fertilizer tank 28 (right fertilizer tank 29), and an on-off valve (not shown) for opening and closing the bypass path. With.
Accordingly, the opening / closing valve is opened while the first to tenth pumps 31a to 31j are maintained in the driven state by the operation of the first to fifth clutch switches 81a to 81e (first to fifth minority levers 111 to 115). The liquid fertilizer from the first to tenth pumps 31a to 31j is circulated to the suction unit 54 (or the left fertilizer tank 28 (the right fertilizer tank 29)), so that the liquid fertilizer becomes the first to tenth nozzles. It is made not to supply to 32a-32j (equivalent to a stop state).

[Fifth Embodiment of the Invention]
The present invention can be applied not only to a riding type rice transplanter that supplies liquid fertilizer to the rice field, but also to a riding type rice transplanter configured to supply powdered fertilizer and chemicals to the rice field.
In this case, right and left hoppers (not shown) for storing powdered fertilizer and chemicals (corresponding to the first and second storage units), and first powdery fertilizer and chemicals from the right and left hoppers. 10 to 10 feeding parts (first to sixth feeding parts), and the first to tenth feeding parts (first to sixth to sixth) It becomes the structure which supplies the granular fertilizer and chemical | medical agent from a feeding part).

The present invention can be applied not only to a riding type rice transplanter that supplies liquid fertilizer to the rice field, but also to a riding type direct seeding machine that is configured to supply crop seeds to the rice field.
In this case, right and left hoppers (not shown) for storing the soy seeds (corresponding to the first and second storing parts), first to ten paying parts (first to sixth paying-outs) for feeding the soy seeds from the right and left hoppers Part), and the first to tenth groover (first to sixth groover) supplies seeds from the first to tenth feeding parts (first to sixth feeding parts) to the grooves laid on the surface. Or the structure which supplies seeds to the surface of a rice field directly from the 1st-10th delivery part (1st-6th delivery part), without providing the 1st-10th groover (1st-6th groover). Become.

  The present invention can be applied not only to a riding-type rice transplanter that uses liquid fertilizer, but also to a riding-type rice transplanter or riding-type direct seeding machine that uses liquid chemicals, powdered fertilizers and chemicals, and seed pods.

28 First storage section 29 Second storage section 31a to 31e First to fifth feeding sections 31f to 31j Sixth to tenth feeding sections 66 Supply switching section 86 First actuator 87 Second actuator 89 Connection mechanism 91, 111 First operation part (for Article 10)
92,112 Second operation section (for 10 articles)
93a 3rd operation part, 3rd operation part for 5th line (for 10th line)
93b 3rd operation part, 3rd operation part for 6th line (for 10th line)
113 3rd operation part (for 10 articles)
94,114 Fourth operation section (for Article 10)
95,115 5th operation part (for 10 articles)
31a, 31b, 31c 1, 2 and 3 feeding parts 31d, 31e, 31f 4, 5 and 6 feeding parts 121, 111 First operation part (for 6 articles)
122a 2nd operation part, 2nd operation part for 3rd line (for 6th line)
122b 2nd operation part, 4th line 2nd operation part (for 6 lines)
112 Second operation section (for Article 6)
123, 113 Third operation section (for Article 6)

Claims (6)

In a paddy field machine configured to supply agricultural supply bodies to 10 supply positions set on the rice field with a predetermined interval in the left-right direction,
The 1st storage part and the 2nd storage part which store an agricultural supply body, the 5 supply parts corresponding to the 1st-5th article which pays out the agricultural supply body of the 1st storage part, and the 2nd storage part It has 5 feeding parts corresponding to the 6th to 10th items for feeding out the agricultural supply body of
The agricultural supply bodies of the first and second storage units are configured to be supplied to each of the first to tenth feeding positions from each of the first to tenth feeding parts,
A supply switching unit that can be operated between a supply state in which an agricultural supply body is supplied from the supply unit to the supply position and a non-supplied supply state is provided in each of the first to tenth supply units,
A connection mechanism for connecting the first, second, third, fourth, and fifth operation sections, the first operation section and the first and second supply switching sections, and the second operation section and the third and fourth sections. A connection mechanism for connecting the supply switching unit, a connection mechanism for connecting the third operation unit and the fifth supply switching unit, and connecting the third operation unit and the sixth supply switching unit. A connection mechanism for connecting the fourth operating section with the supply switching section for the seventh and eighth articles, and a connection mechanism for connecting the fifth operating section with the supply switching sections for the ninth and tenth sections. And with
The first operation unit can operate the first and second supply switching units, the second operation unit can operate the third and fourth supply switching units, the third operation unit can operate the fifth and sixth items. The supply switching unit of the item can be operated, the supply switching unit of the seventh and eighth items can be operated by the fourth operation unit, and the supply switching unit of the ninth and tenth items can be operated by the fifth operation unit The paddy field work machine which constitutes. A first actuator and a second actuator;
The third operation unit includes a third operation unit for the fifth item connected to the supply switching unit for the fifth item, and a third operation unit for the sixth item connected to the supply switching unit for the sixth item. And
The first actuator is configured to be capable of operating the first and second operation units and the fifth operation unit for the fifth line,
The second actuator is configured to be operable with the fourth and fifth operation portions and the third operation portion for the sixth line,
The first actuator can be operated by the first actuator to operate the first and second supply switching units, and the second actuator can be operated by the first actuator to supply the third and fourth items. The switching unit can be operated, the 5th and 6th third operating units can be operated by the first and second actuators, and the 5th and 6th supply switching units can be operated, and the second actuator can It is possible to operate the supply switching unit of the seventh and eighth items by operating the fourth operation unit, and to operate the supply switching unit of the ninth and tenth items by operating the fifth operation unit by the second actuator. The paddy field work machine according to claim 1 which comprises. The left side portion of the machine body includes the first storage unit, the feeding unit of the first to fifth items, the supply switching unit of the first to fifth items, and the first actuator.
The said 2nd storage part, the said delivery part of 6th-10th article, the said supply switching part of 6th-10th article, and the said 2nd actuator are provided in the right side part of a body. Paddy field machine. In a paddy field machine configured to supply agricultural supply bodies to six supply positions set on the rice field with a predetermined interval in the left-right direction,
A first storage section and a second storage section for storing an agricultural supply body; three supply sections corresponding to items 1, 2 and 3; and the second storage section for feeding out the agricultural supply body of the first storage section. With three feeding parts corresponding to the 4th, 5th and 6th strips.
The agricultural supply bodies of the first and second storage units are configured to be supplied to each of the supply positions of the first to sixth strips from each of the feeding portions of the first to sixth strips,
A supply switching unit that can be operated between a supply state where the agricultural supply body is supplied from the supply unit to the supply position and a non-supplied supply state is provided in each of the supply units of the first to sixth items,
Connects the first, second and third operation units, the connection mechanism connecting the first operation unit and the first and second supply switching units, and the second operation unit and the third supply switching unit. A connection mechanism that connects the second operation unit and the fourth supply switching unit, and a connection mechanism that connects the third operation unit and the fifth and sixth supply switching units. prepare for,
The first operation unit can operate the first and second supply switching units, the second operation unit can operate the third and fourth supply switching units, the third operation unit can operate the fifth and sixth items. The paddy field work machine which constitutes the above-mentioned supply switching part of a line so that operation is possible. A first actuator and a second actuator;
The second operation unit includes a second operation unit for the third line connected to the supply switching unit for the third line, and a second operation unit for the fourth line connected to the supply switching unit for the fourth line. And
The first actuator is configured to be able to operate the first operation unit and the second operation unit for the third line,
The second actuator is configured to be able to operate the third operation unit and the second operation unit for the fourth line,
The first operating unit can be operated by the first actuator to operate the first and second supply switching units, and the first and second actuators can be used to operate the third and fourth operating units. The third and fourth supply switching sections can be operated, and the second actuator can be operated by the second actuator to operate the fifth and sixth supply switching sections. 4. Paddy field machine according to 4. The left side portion of the fuselage includes the first storage unit, the feeding unit of the first, second and third items, the supply switching unit of the first, second and third items, and the first actuator.
6. The right side portion of the fuselage includes the second storage section, the feeding section of the fourth, fifth and sixth strips, the supply switching section of the fourth, fifth and sixth strips, and the second actuator. Paddy field work machine as described in.

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