JP2002209410A - Riding-type rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To construct a seedling-transplanting apparatus of a multiple line transplanting type of a riding-type rice transplanter which is provided with the apparatus in such a manner that desired minor line clutches can be driven to the interception side by a single operation lever. SOLUTION: The seedling-transplanting apparatus is constructed in such a manner that, by operating the right side operation part 52 by an operation lever 49, at first the most right-sided minor line clutch is driven to the interception side, subsequently the minor line clutch adjacent to it on its left side is driven to the interception side, and thus minor line clutches adjacent to each other on the left side are, successively driven to the interception side. The seedling-transplanting apparatus is constructed in such a manner that, by operating the left side operation part 62 by the operation lever 49, at first the most left-sided minor line clutch is driven to the interception side, subsequently the minor line clutch adjacent to it on its right side is driven to the interception side, and thus minor line clutches adjacent to each other on the right side are successively driven to the interception side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter equipped with a multi-row type (for example, 6-row type, 8-row or 10-row type) seedling planting apparatus.

[0002]

2. Description of the Related Art A riding type rice transplanter equipped with a multi-row type seedling planting apparatus as described above is provided with a plurality of few-row clutches capable of transmitting and disconnecting power to a small number of planting arms. (For example, in a 10-row seedling planting apparatus, a minority clutch is configured so that power can be transmitted to and cut off from the planting arms of two adjacent planting strips, and five such minor clutches are used. Some are provided).

When a planting operation is performed in one paddy field in a riding type rice transplanter, the paddy field travels from one end of the paddy field to the other end (first planting step) and the other end of the paddy field. The vehicle is turned at the section, and travels toward one end of the paddy field along the first planting process (second planting process).
Next, the planting work is performed by turning the body at one end of the paddy field and traveling along the second planting process toward the other end of the paddy field. In this case, in the last previous planting stroke, a few minorities from the rightmost side and the rightmost side are used so that the running can be performed with all minority clutches operated to the transmission side in the last planting stroke. Operate the clutches (the leftmost and some minority clutches from the leftmost) to the disengagement side to adjust the number of planted streaks.

[0004]

When the planting operation is performed in one paddy field as described in the prior art, it is only necessary to operate the minority clutch to the disengagement side in the last preceding planting stroke. Is a case where the paddy field is almost rectangular (in plan view). In contrast, when planting in a deformed paddy field, such as when the paddy field is not rectangular but is bent in a plan view, or a ridge protrudes into the paddy field, The minority clutch has to be operated to the disengagement side and the transmission side many times.

[0005] When a plurality of minority clutches are provided, there is an operation lever provided on each of the minority clutches, which can operate the minority clutch on the disengagement side. It has been proposed that a single operation lever that is manually operated can operate a desired minor number of clutches to a disengagement side so as to be able to cope with the engaging operation. SUMMARY OF THE INVENTION The present invention provides a riding type rice transplanter equipped with a multi-row type seedling planting device so that a desired few-leaf clutch can be operated to a disengaged side by one operation lever which is artificially operated. In this case, an object is to provide a configuration in which the minority clutch can be operated to the disengagement side with good operability by an operation lever.

[0006]

According to a first aspect of the present invention, when a riding type rice transplanter is provided with a plurality of clutches capable of transmitting and disconnecting power to a small number of planting arms, a small number of clutches are provided. A right operation unit capable of operating the clutch on the transmission side and the disengagement side, a left operation unit capable of operating the minority clutch on the transmission side and the disengagement side, and an operation lever operated artificially are provided.

According to the first aspect of the present invention, when the operating lever is linked to the right operating unit and the right operating unit is operated by the operating lever, the rightmost minority clutch is first operated to the disengaged side. Then, when the right operating section is further operated by the operating lever, the minority clutch adjacent to the rightmost left side in addition to the rightmost minority clutch is operated to the disengagement side. When the right operation unit is further operated by the operation lever, the two minority clutches adjacent to the rightmost and rightmost left sides and the minority clutches adjacent to the left side are operated to the disengagement side.

Conversely, when the operation lever is linked to the left operation unit and the left operation unit is operated by the operation lever, the leftmost minority clutch is first operated to the disengagement side, and the left operation unit is further operated by the operation lever. In addition to the leftmost minority clutch, the minority clutch adjacent to the leftmost right side is operated to the disengagement side. When the left operating portion is further operated by the operation lever, the two minority clutches adjacent to the leftmost side and the leftmost side and the minority clutch adjacent to the right side are operated to the disengagement side.

As described above, according to the features of claim 1, 1
By operating the right or left operation unit with the operation lever, the left (right) minority clutch can be sequentially operated to the disengagement side from the rightmost (leftmost) minority clutch. In this case, in the riding type rice transplanter, the rightmost minority clutch is operated to the transmission side, and the minority clutch adjacent to the rightmost left side is operated to the disengagement side. Therefore, the feature of claim 1 is suitable for such a planting operation in a paddy field.

[II] According to the features of the second aspect, similar to the case of the first aspect, it has the "action" described in the above-mentioned [I], and additionally has the following "action". ing. According to the feature of the second aspect, the operation lever is provided with a neutral path, a right operation path and a left operation path. By operating the operation lever along the right and left operation paths, the operation lever according to the above item [I] is provided. As described, the minority clutch on the left side (right side) can be operated to the disengagement side in order from the minority clutch on the rightmost side (leftmost side).

In this case, according to the second aspect of the present invention, the right and left operation paths extend in the same direction from one and the other ends of the neutral path, and the right and left operation paths are extended. They are in line with each other. Thereby, the right and left operation paths extend from the neutral path in opposite directions to each other.
According to the feature of (1), the arrangement space of the neutral path and the right and left operation paths can be reduced.

As described above, if the right and left operation paths are configured to extend in opposite directions from the neutral path,
For example, if the operation lever is operated from the end of the right operation path to the end of the left operation path, the operation range of the operation lever becomes large. On the other hand, according to the feature of claim 2, since the right and left operation paths extend in the same direction from one and the other ends of the neutral path, for example, the left operation from the end of the right operation path Even if the operation lever is operated at the end of the path, the operation range of the operation lever is about the range of the right operation path (or the left operation path), and is not so large.

[III] According to the feature of claim 3, similar to the case of claim 2, the "action" described in the above [I] and [II] is provided, and in addition to this, the following "action" is provided. "
It has. According to the feature of claim 3, since all the stop positions at which all the minority clutches can be operated to the disengagement side are provided at the end of the right or left operation path opposite to the neutral path, the operation can be performed. The lever was operated from the neutral path to the right operation path (or the left operation path), and the left (right) minority clutch was sequentially operated from the rightmost (leftmost) minority clutch to the disengagement side. In this case, by operating the operation lever to the all-row stop position at the end opposite to the neutral path in the right operation path (or the left operation path),
All minority clutches can be disengaged.

According to the third aspect of the present invention, when many of the minority clutches among all the minority clutches are operated to the disengagement side by the operating lever, the planting located at the upper side of the minority clutches. A state in which all minority clutches are operated to the disengagement side by the same operating lever, even if the clutch (power can be transmitted to and disengaged from all minority clutches) is not operated to the disengagement side by another manual operation tool. Can be obtained.

[IV] According to the feature of claim 4, as in any one of claims 2, 3, and 4, the "action" described in the above items [I] to [III] is provided. In addition, it has the following “action”. According to the feature of claim 4, the operation lever, the neutral path, the right and left operation paths are arranged on the lateral side of the driver's seat, the neutral path is set in the lateral direction of the body, and the right and left operation paths are the body. It is set in the front-back direction. Thereby, Claim 4
According to the feature of the above, the driver in the driver's seat can easily hold the control lever by extending his hand to the side, and by operating the control lever in the lateral direction of the aircraft along the neutral path, The lever can be carried to the right and left operation paths. In this case, since it is only necessary to carry the operation lever to the right and left operation paths, it is not necessary to set the neutral path to be long in the lateral direction of the machine.

Next, by operating the operation lever in the longitudinal direction of the fuselage along the right or left operation path, the above item [I]
As described in (1), the left (right) minority clutch can be sequentially operated to the disengagement side from the rightmost (leftmost) minority clutch. In this case, the right and left operation paths are arranged in the lateral direction of the aircraft, and the operator of the driver seat extends the hand to the side and holds the operational lever, and moves the operational lever away from the driver seat in a laterally outward direction (the lateral direction of the aircraft). 4), the driver of the driver's seat extends the hand to the side and holds the control lever, and the control lever is oriented along the driver's seat (the longitudinal direction of the fuselage). The operation of the control lever along the right and left operation paths is easier when the operation lever is configured to be operated at the same time.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [1] As shown in FIG.
An engine 3 and a transmission case 4 are provided at the front of the body supported by the rear wheels 2, and a driving unit 5 is provided at the center of the body.
And a link mechanism 6 of a four-link type is connected to the rear part of the fuselage by a hydraulic cylinder 14 so as to be able to be driven up and down freely, and the link mechanism 6 is provided with a seedling planting device 7 to constitute a riding type rice transplanter. .

As shown in FIG. 1 and FIG.
Is formed in a 10-row type, and has five planting transmission cases 8, a rotating case 9 rotatably supported on both the left and right sides of the planting transmission case 8, and a pair provided at both ends of the rotating case 9. Planting arm 10, four grounding floats 11, a seedling rest 12 on which seedlings are placed, a vertical feed mechanism 13 for sending the seedlings placed on the seedling rest 12 to the lower part of the seedling rest 12, and the like. It is configured. As a result, the rotating case 9 is rotated as the seedling rest 12 is reciprocated to the left and right, and the planting arms 10 alternately take out the seedlings from the lower part of the seedling rest 12 and plant the seedlings on the rice field. .

[2] Next, the driving structure of the planting arm 10 will be described. As shown in FIGS. 1 and 2, a transmission case 15 is connected to the lower part of the rear end of the link mechanism 6 so as to be freely rotatable around the longitudinal axis, and the power of the engine 3 is transmitted via the PTO shaft 18 to the transmission case. 15 is transmitted. A lateral support frame 16 is fixed to the transmission case 15, and five planted transmission cases 8 are connected to the support frame 16 in a cantilever manner in a rearward direction, and the output portion 15 a of the transmission case 15 and the five planted transmission cases 8 are connected. A transmission shaft 17 is connected across the transmission case 8.

As a result, the power of the PTO shaft 18 is transmitted to the transmission case 15, the output portion 15 a of the transmission case 15, and the transmission shaft 1.
7, a planting transmission case 8, a transmission chain (not shown) disposed inside the planting transmission case 8, and
2, 3, 4, 5 minority clutches 19a, 19b, 19
c, 19d, and 19e, transmitted to the rotating case 9,
The rotating case 9 is driven to rotate, and the planting arms 10 alternately take out the seedlings from the lower part of the seedling placing table 12 and plant them on the rice field.

As shown in FIG. 2, first to fifth minority clutches 19a to 19e are provided on the support of the rotating case 9 in the planting transmission case 8. The first to fifth minority clutches 19a to 19e are for transmitting and interrupting power to two rotating cases 9 in one planting transmission case 8, and for example, as shown in FIG.
Is moved to the cut-off side, the rightmost planting transmission case 8-2
One rotating case 9 stops. When the first to fifth minority clutches 19a to 19e are operated to the disengagement side, the rotating case 9 is in a state where both of the pair of planting arms 10 are located above the rice field surface (for example, the rotating case 9 is parallel to the rice field surface). Is configured to stop. In this way, each of the first to fifth minority clutches 19a to 19e corresponds to two adjacent planting strips.

[3] Next, the structure of the reciprocating horizontal feed drive of the seedling placing table 12 to the left and right and the drive structure of the vertical feed mechanism 13 will be described. As shown in FIG. 2, a spiral shaft 20 extends from the transmission case 15, and an end of the spiral shaft 20 is rotatably supported by the support frame 16 via a support bracket 21. The feed member 22 is externally fitted to the spiral shaft 20,
The seedling rest 12 and the feed member 22 are connected. Thus, the helical shaft 20 is driven to rotate by the power transmitted to the transmission case 15 via the PTO shaft 18, and the feed member 2
2 is reciprocally traversely driven left and right along the helical axis 20,
The seedling placing table 12 is driven to reciprocate laterally to the left and right.

As shown in FIG. 1 and FIG.
Are provided with seedling placing surfaces 12a for ten rows, and an endless rotating belt type vertical feed mechanism 13 is provided on each of the seedling placing surfaces 12a. One drive shaft 23 over the entire width of the seedling rest 12 is rotatably supported below the seedling rest 12, and the drive roller 13 a of the vertical feed mechanism 13 is fitted around the drive shaft 23 so as to be relatively rotatable. ing. In the vertical feeding mechanism 13 of the two adjacent seedling placing surfaces 12a, the drive roller 13a is connected by three cylindrical members 13b so that the vertical feeding mechanism 13 of the two adjacent seedling placing surfaces 12a operates integrally. It is provided with five sets of two vertical feed mechanisms 13 that operate integrally. The first and the first, which can freely connect and disconnect the drive shaft 23 and the drive roller 13a.
2, 3, 4, 5 vertical feed clutches 24a, 24b, 24
c, 24d, and 24e are provided in each of the two vertical feed mechanisms 13 (five sets) that operate integrally.

As shown in FIG. 2, a vertical feed shaft 25 extends from the transmission case 15, and the vertical feed shaft 25 is rotatably supported by the support frame 16 via a support bracket 26. 25 has a pair of drive arms 25a. The one-way clutch 27 is externally fitted to the drive shaft 23, and the input arm 27a of the one-way clutch 27
Is disposed between the pair of drive arms 25a, and P
The longitudinal feed shaft 25 is rotationally driven by the power transmitted to the transmission case 15 via the TO shaft 18.

Thus, as described above, the seedling rest 1
When the seedling rest 12 reaches one (the other) end of the reciprocating transverse driving when the 2 is reciprocatingly driven laterally left and right, the input arm 27a reaches the one (the other) driving arm 25a, The input arm 27a and the one-way clutch 27, the first to fifth vertical feed clutches 24a to 24a are driven by the drive arm 25a.
The drive shaft 23 is driven to rotate by a predetermined angle via 24e, so that the vertical feed mechanism 13 is driven, and the seedling placed on the seedling rest 12 is sent downward.

For example, as shown in FIG. 2, when the first vertical feed clutch 24a is operated to the disengaged side, the seedling placing surface 12a corresponding to the two rotating cases 9 of the planting transmission case 8 on the rightmost side.
Of the vertical feed mechanism 13 stops. In this manner, each of the first to fifth longitudinal feed clutches 24a to 24e corresponds to two adjacent planting strips.

[4] Next, the structure of the fertilizer applicator attached to the machine body and the seedling planting apparatus 7 will be described. As shown in FIGS. 1 and 3, the right and left body frames 28
A support frame 29 having an inverted U-shape in front view is fixed to a rear portion of the support frame 29, and a horizontally long support frame 30 along the lateral direction of the machine body is fixed to the support frame 29. Five feeding portions 31 corresponding to the two articles are attached to the support frame 30,
A funnel part 34 is attached to the lower part of the feeding part 31,
A hopper 32 made of a transparent resin and storing fertilizer is attached to the five feeding portions 31, and the hopper 32 and the feeding portion 31 are arranged at the rear of the body and behind the driver seat 33.

As shown in FIG. 1 and FIG.
Groove device 35 that feeds fertilizer to the rice field while forming a groove beside the seedlings (planting streaks) planted by zero.
10 are prepared corresponding to each of the planting strips, and the groove generator 35 is attached to the ground float 11. 2
One groove generator 35 and one funnel part 34 are connected via ten flexible hoses 36.

As shown in FIG. 3, a pay-out roll (not shown) is provided in each of the pay-out portions 31, and one drive shaft 37 is rotatably supported over the pay-out portion 31. The first, second, third, fourth and fifth fertilizing clutches 38a capable of transmitting and shutting off the power of the shaft 37 to the payout roll,
38b, 38c, 38d, and 38e are provided in each of the feeding sections 31. As shown in FIGS. 1 and 3, a transmission shaft 3 for transmitting power from the transmission case 4 to the rear wheel 2
A transmission case 40 for taking out power is fitted to the outside, and the crank arm 4 is driven to rotate by the taken-out power.
0 a is provided in the transmission case 40. The one-way clutch 41 is externally fitted to the drive shaft 37, and the crank arm 4
A link rod 42 is connected between Oa and the one-way clutch 41.

As shown in FIGS. 1 and 3, a blower 43 and a motor 44 for driving the blower 43 are supported at the end of the support frame 30.
A single pipe 45 extends along. Funnel part 3
An air outlet (not shown) is formed on the side opposite to the portion to which the hose 36 is connected in 4, and the air outlet of the funnel portion 34 is inserted into the pipe 45.

As a result, the rotating case 9 is driven to rotate as the seedling rest 12 is reciprocally moved sideways to the left and right, and the planting arm 10 alternately takes out seedlings from the lower part of the seedling rest 12. Plant on the rice field. At the same time, the reciprocating motion of the link rod 42 due to the rotational motion of the crank arm 40a is converted into the rotational motion by the one-way clutch 41, and the drive shaft 37 is intermittently driven to rotate. Thus, the feeding roll is intermittently driven to rotate via the first to fifth fertilization clutches 38a to 38e, and the fertilizer of the hopper 32 is fed from the feeding roll to the funnel 34 by a predetermined amount. The high-pressure air from the blower 43 is supplied to the hose 36 through the pipe 45 and the funnel 34, and the high-pressure air supplies the fertilizer to the groove generator 35 through the hose 36. The fertilizer is fed into the groove formed in the area.

For example, as shown in FIG. 3, when the first fertilizer application clutch 38a is operated to the disengaged side, the feeding portion 31 corresponding to the two rotating cases 9 of the planting transmission case 8 on the rightmost side.
Stops, and the fertilizer is not supplied to the two groove generators 35 corresponding to the two rotating cases 9 of the rightmost planting transmission case 8. Thus, the first to fifth fertilizer application clutches 38a to 38e
Correspond to two adjacent planting strips.

[5] Next, the first to fifth minority clutches 19
a to 19e, first to fifth vertical feed clutches 24a to 24e,
The structure of the operation lever 49 for operating the first to fifth fertilization clutches 38a to 38e will be described. As shown in FIGS. 4, 5, and 7, the support portion 46 is configured in a rectangular shape in plan view, and the support shaft 47 is fixed to the support portion 46, and the operation plate 53 swings on the support shaft 47. It is freely supported. A rectangular cylindrical support portion 53c is provided on the upper portion of the operation plate 53, and the operation lever 4 is provided around the longitudinal axis P1 of the support portion 53c.
9 is swingably supported to the left and right.
A spring 50 is mounted in a compressed state between a seat plate 49a at the lower end of the lever 50 and the operation plate 53, and the operation lever 49 is urged by the urging force of the spring 50 so as to stand upright at the center. On the outer peripheral portion of the operation plate 53, one vertically long concave portion 53a,
Six semicircular concave portions 53b are formed.

As shown in FIGS. 4, 5, and 7, three right operation plates 51, 52, and 54 are swingably supported by a support shaft 47, and are connected across the right operation plates 51, 52, and 54. Rod 4
8, the right operation plates 51, 52, 54 swing together. One semicircular concave portion 51a is formed on the outer peripheral portion of the right operating plate 51, and a concave portion 52a that is longer than the concave portion 51a of the right operating plate 51 is formed on the outer peripheral portion of the right operating plate 52. , Into which the operating lever 49 can enter
2 b is provided on the upper part of the right operation plate 52. The recess 53 of the operation plate 53 is larger than the recess 52a of the right operation plate 52.
“a” is set to be vertically longer, and a concave portion 54 a that is longer than the concave portion 53 a of the operation plate 53 is formed on the outer peripheral portion of the right operation plate 54.

As shown in FIGS. 4, 5, and 7, three left operation plates 61, 62, and 64 are swingably supported by a support shaft 47, and the connecting rod 5 extends over the left operation plates 61, 62, and 64.
5 are connected, and the left operation plates 61, 62, 64 swing integrally. One semicircular concave portion 61a is formed on the outer peripheral portion of the left operating plate 61, and a concave portion 62a that is longer than the concave portion 61a of the left operating plate 61 is formed on the outer peripheral portion of the left operating plate 62. An engaging portion 6 into which 49 can enter.
2b is provided on the upper part of the left operation plate 62. The recess 53 of the operation plate 53 is larger than the recess 62a of the left operation plate 62.
“a” is set to be vertically longer, and a recess 64 a that is longer than the recess 53 a of the operation plate 53 is formed on the outer peripheral portion of the left operation plate 64.

As shown in FIGS. 4, 5, and 7, the support shaft 56 is fixed to the support portion 46, and the first to fifth
The operation arms 57a, 57b, 57c, 57d, and 57e are swingably supported. First to fifth operation arms 57a
To 57e and the first to fifth minority clutches 19a to 1
9e, the first to fifth vertical feed clutches 24a to 24e and the first
Each of the fertilizing clutches 38a to 38e is connected to the wire 5
8 are connected.

The first to fifth operation arms 57a to 57e shown in FIG.
7e, the first to fifth minority clutches 19a to 19
e, first to fifth longitudinal feed clutches 24a to 24e and first to fifth
The five fertilization clutches 38a to 38e are operated on the transmission side, and the first to fifth operation arms 57a to 57e are urged clockwise in FIG. 4 by springs (not shown). When the first to fifth operation arms 57a to 57e are pivotally operated counterclockwise in FIG. 4 to pull the wire 58,
First to fifth minority clutches 19a to 19e, first to fifth longitudinal feed clutches 24a to 24e, and first to fifth fertilization clutches 3
8a to 38e are operated to the blocking side.

As shown in FIGS. 4, 5, and 7, a roller 59 is provided above the first to fifth operation arms 57a to 57e, and the roller 59 of the first operation arm 57a is provided on the outer periphery of the right operation plate 51. The second operation arm 57
b roller 59 is a right operation plate 52 and a left operation plate 64
Is applied to the outer periphery. Third operation arm 57c
Roller 59 is applied to the outer peripheral portion of the operation plate 53,
The roller 59 of the fourth operation arm 57d is connected to the right operation plate 54.
The roller 59 of the fifth operation arm 57e is applied to the outer peripheral portion of the left operation plate 61.

As shown in FIG. 1 and FIG.
The operation lever 49 and the support portion 46 are arranged on the right side of the
The support portion 46 is arranged so that the support shafts 47 and 56 are oriented in the lateral direction of the machine. In the cover 60 that covers the support part 46, a neutral path 63 is opened at the rear of the cover 60 along the body left-right direction (the paper plane left-right direction), and the neutral path 63 extends from the right end of the neutral path 63 in the body front-rear direction (the paper plane vertical direction). The right operation path 65 is opened forward, and the left operation path 66 is opened from the left end of the neutral path 63 forward in the longitudinal direction of the machine (up and down direction on the paper).

As shown in FIG. 6, the right and left operation paths 65 and 66 have 1.2 stop positions, 3.4 stop positions, and 5.6 stop positions.
A stop position and a 7.8 stop position are provided, and an all-row stop position is provided at an end of the left operation path 66 opposite to the neutral path 63. As shown in FIG.
6, a leaf spring 67 is fixed, and a leaf spring 67 is fixed to the leaf spring 67.
Is attached, and the roller 68 is applied to the concave portion 53 b of the operation plate 53. As a result, the roller 68 enters the concave portion 53b of the operation plate 53, and the operation lever 49 moves the right and left operation paths 65 and 66.
1.2 stop position to 7.8 stop position, left operation path 66
Is held at the all-row stop position.

[6] Next, the operation lever 49 is moved to the neutral path 6
A case will be described in which the operation is performed from 3 to the right operation path 65. The state shown in FIGS. 4, 5, 6, and 7 is a state in which the operation lever 49 is operated on the neutral path 63, and the rollers 59 of the first to fifth operation arms 57a to 57e are operated by the right operation plate 5
1, 52, 54, the recesses 61a, 62a, 64a of the left operation plates 61, 62, 64 and the recess 53a of the operation plate 53. In this state, all the first to fifth minority clutches 19a to 19e, the first to fifth longitudinal feed clutches 24a to 24e, and the first to fifth fertilization clutches 38a to 38e are operated on the transmission side.

When the operating lever 49 is operated to the right end (the right operating path 65) of the neutral path 63, the operating lever 49 enters the engaging portion 52b of the right operating plate 52. When the operation lever 49 is operated to the 1/2 stop position of the right operation path 65, the right operation plates 51, 52, and 54 rotate by a predetermined angle, and the rollers 59 of the first operation arm 57a rotate the right operation plate 51. Is pushed out from the concave portion 51a and rides on the outer peripheral portion of the right operation plate 51. Thereby, the first operating arm 57a is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the first minority clutch 19a, the first vertical feed clutch 24a, and the first fertilizing clutch 38a are moved. Operated to shut off side.

The operation lever 49 is moved to the right operation path 65
4, the right operation plates 51, 52, 54 are further rotated by a predetermined angle as shown in FIG. 8, and the rollers 59 of the second operation arm 57 b are pushed out of the recesses 52 a of the right operation plate 52. And rides on the outer peripheral portion of the right operation plate 52. As a result, the second operation arm 57b is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the second minority clutch 19b and the second vertical feed clutch 2 are operated.
4b and the second fertilization clutch 38b are operated to the disengagement side (the first minority clutch 19a, the first longitudinal feed clutch 24).
a, the first fertilizer application clutch 38a is also maintained on the cut-off side).

The operation lever 49 is moved to the right operation path 65
6 When the operation is performed at the stop position, the right operation plates 51, 52, 54
Is further rotated by a predetermined angle, and the third operation arm 57c
Roller 59 is pushed out from the concave portion 53 a of the operation plate 53 and rides on the outer peripheral portion of the operation plate 53. As a result, the third operation arm 57c is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the third minority clutch 19c, the third vertical feed clutch 24c, and the third fertilization clutch 38c are moved. It is operated to the disengagement side (the first and second minority clutches 19a and 19b, the first and second longitudinal feed clutches 24a and 2).
4b, the first and second fertilization clutches 38a and 38b are also maintained on the disengagement side).

The operation lever 49 is moved to the right operation path 65
8 When the operation position is stopped, the right operation plates 51, 52, 54
Is further rotated by a predetermined angle, and the fourth operation arm 57d
Roller 59 is pushed out from the concave portion 54a of the right operation plate 54 and rides on the outer peripheral portion of the right operation plate 54. As a result, the fourth operation arm 57d is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the fourth minority clutch 19d, the fourth vertical feed clutch 24d, and the fourth fertilization clutch 38d are moved. Operated on the cutoff side (first, second, third
Minority clutch 19a, 19b, 19c, 1st, 2nd, 3rd
Longitudinal feed clutches 24a, 24b, 24c, first, second, third
The fertilizer application clutches 38a, 38b, 38c are also maintained on the cut-off side).

[7] Next, the operation lever 49 is moved to the neutral path 6.
A description will be given of a case where the operation is performed from 3 to the left operation path 66. The state shown in FIGS. 4, 5, 6, and 7 is a state in which the operation lever 49 is operated on the neutral path 63, and the rollers 59 of the first to fifth operation arms 57a to 57e are operated by the right operation plate 5
1, 52, 54, the recesses 61a, 62a, 64a of the left operation plates 61, 62, 64 and the recess 53a of the operation plate 53. In this state, all the first to fifth minority clutches 19a to 19e, the first to fifth longitudinal feed clutches 24a to 24e, and the first to fifth fertilization clutches 38a to 38e are operated on the transmission side.

When the operation lever 49 is operated to the left end of the neutral path 63 (the left operation path 66), the operation lever 49 enters the engaging portion 62b of the left operation plate 62. When the operation lever 49 is operated to the 1/2 stop position of the left operation path 66, the left operation plates 61, 62, and 64 rotate by a predetermined angle, and the roller 59 of the fifth operation arm 57e is moved to the concave portion 61a of the left operation plate 61. And gets on the outer peripheral portion of the left operation plate 61. Accordingly, the fifth operation arm 57e is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the fifth minority clutch 19e, the fifth vertical feed clutch 24e, and the fifth fertilization clutch 38e are moved. Operated to shut off side.

The operation lever 49 is connected to the left operation path 66 3.
When operated to the 4 stop position, as shown in FIG. 9, the left operation plates 61, 62, 64 further rotate by a predetermined angle, and the rollers 59 of the fourth operation arm 57d are pushed out from the recesses 62a of the left operation plate 62. The operator rides on the outer peripheral portion of the left operation plate 62. As a result, the fourth operation arm 57d is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the fourth minority clutch 19d and the fourth vertical feed clutch 2 are operated.
4d and the fourth fertilizer application clutch 38d are operated to the disengagement side (the fifth minority clutch 19e, the fifth vertical feed clutch 24).
e, the fifth fertilizer application clutch 38e is also kept on the cut-off side).

The operation lever 49 is moved to the left of the left operation path 66
When operated to the 6 stop position, the left operation plates 61, 62, 64
Is further rotated by a predetermined angle, and the third operation arm 57c
Roller 59 is pushed out from the concave portion 53 a of the operation plate 53 and rides on the outer peripheral portion of the operation plate 53. As a result, the third operation arm 57c is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the third minority clutch 19c, the third vertical feed clutch 24c, and the third fertilization clutch 38c are moved. The clutch is operated to the disengagement side (the fifth and fourth minority clutches 19e and 19d, the fifth and fourth vertical feed clutches 24e and 2).
4d, and the fifth and fourth fertilization clutches 38e and 38d are also maintained on the disengagement side).

The operation lever 49 is moved to the left operation path 66 7.
8 When the operation is made to the stop position, the left operation plates 61, 62, 64
Is further rotated by a predetermined angle, and the second operation arm 57b
Roller 59 is pushed out from the concave portion 64a of the left operation plate 64 and rides on the outer peripheral portion of the left operation plate 64. Thereby, the second operation arm 57b is pivoted counterclockwise in FIG. 4 to pull the wire 58, and the second minority clutch 19b, the second vertical feed clutch 24b, and the second fertilization clutch 38b are moved. Operated to the cut-off side (No. 5, 4, 3
Minority clutch 19e, 19d, 19c, fifth, fourth, third
Longitudinal feed clutches 24e, 24d, 24c, fifth, fourth, third
The fertilizing clutches 38e, 38d, 38c are also maintained on the cut-off side).

When the operating lever 49 is moved to the all-row stop position of the left operating path 66, the left operating plates 61, 62, 64 are further rotated by a predetermined angle as shown in FIG. The 64 connecting rods 55 contact the upper part of the right operation plate 52, and the right operation plates 51, 52, 54 rotate together with the left operation plates 61, 62, 64. Therefore, the roller 59 of the first operation arm 57a is
Is pushed out from the concave portion 51a and rides on the outer peripheral portion of the right operation plate 51.

As a result, the first operation arm 57a is
, The wire 58 is pulled, and the first minority clutch 19a, the first longitudinal feed clutch 24a, and the first fertilization clutch 38a are operated to the disengagement side (fifth and fourth positions). , 3,2 minority clutch 19e, 19
d, 19c, 19b, the fifth, fourth, third and second vertical feed clutches 24e, 24d, 24c, 24b, and the fifth, fourth, third, and second fertilizer clutches 38e, 38d, 38c, 38b are also maintained on the disengaged side. ). Therefore, all the first to fifth minority clutches 19a to 19e and the first to fifth vertical feed clutches 24a to 24e are provided.
24e and the 1st-5th fertilization clutches 38a-38e will be in the state operated to the disengagement side.

[Another Embodiment of the Invention] In the above-mentioned [Embodiment of the Invention], the operation lever 49 may be arranged on the left lateral side of the driver's seat 33. All the stop positions of the left operation path 66 are eliminated, and the neutral path 6 in the right operation path 65 is eliminated.
An end opposite to 3 may be provided with a full stop position, or both the right and left operation paths 65 and 66 may be provided with a full stop position.

The first to fifth minority clutches 19a to 19e,
Each of the first to fifth longitudinal feed clutches 24a to 24e and the first to fifth fertilization clutches 38a to 38e is configured not to correspond to two adjacent planting strips but to correspond to one planting strip. The first to fifth minority clutches 19a
To 19e, the first to fifth longitudinal feed clutches 24a to 24e, and the first to fifth fertilization clutches 38a to 38e, the ones corresponding to two adjacent planting strips and the ones corresponding to one planting strip coexist. It may be.

[0055]

According to the first aspect of the present invention, in a riding type rice transplanter equipped with a multi-row type seedling planting device, the right or left operating portion is operated by one operating lever, thereby achieving the ultimate operation. The minority clutch on the left side (right side) can be sequentially operated to the disengagement side from the minority clutch on the right side (leftmost side), and the desired minority clutch can be easily disengaged by one operating lever. It was possible to improve the operability of planting work especially in a deformed paddy field.

According to the characteristic of the first aspect, in the riding type rice transplanter, the rightmost minority clutch is operated to the transmission side, and the minority clutch adjacent to the rightmost left side is operated to the disengagement side. It is not necessary to carry out the process (a state in which planting streaks in which seedlings are not planted occur), and to operate the left side (right side) minority clutch in order from the rightmost (leftmost) minority clutch to the disengagement side Therefore, the workability of the planting work can be improved in this respect as well, since the planting work is suitable for the planting work in the paddy field.

According to the features of claim 2, the "effect of the invention" of the above-mentioned claim 1 is provided similarly to the case of the claim 1. In addition to the "effect of the invention", the following "invention" is provided. Of the effect. According to the second aspect of the present invention, it is possible to reduce the arrangement space for the neutral path for guiding the operation lever and the right and left operation paths, which is advantageous in terms of downsizing near the operation lever. became. According to the feature of claim 2, even if the operation lever is operated from the end of the right operation path to the end of the left operation path, the operation range of the operation lever is the range of the right operation path (or the left operation path). It was not so large, so the operability of the control lever was improved.

According to the feature of the third aspect, the "effect of the invention" of the second aspect is provided similarly to the case of the second aspect, and in addition to the "effect of the invention", the following "invention" Of the effect. According to the feature of claim 3, in the state where many minority clutches among all minority clutches are operated to the disengagement side by the operation lever, all the minority clutches are operated to the disengagement side by the same operation lever. Can be obtained, and the operability of the operation lever can be improved.

According to the features of claim 4, claims 2, 3
Claims 2 and 3 as in any one of the four cases.
4 "Effects of the Invention"
In addition to the above, the following "effects of the invention" are provided. According to the feature of the fourth aspect, the driver of the driver seat can easily hold the operating lever by extending his / her hand to the side, and the operating lever operates in the direction along the driver seat (the longitudinal direction of the body). With such a configuration, the operability of the operation lever can be improved because the operation lever can be easily operated along the right and left operation paths.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding rice transplanter.

FIG. 2 is a plan view of the seedling planting apparatus.

FIG. 3 is a rear view of the fertilizer application device.

FIG. 4 is a side view showing the vicinity of an operation lever.

FIG. 5 is a rear view near the operation lever.

FIG. 6 is a plan view around an operation lever, a neutral path, and right and left operation paths.

FIG. 7 is a diagram illustrating a state of the operation plate, the right and left operation plates when the operation lever is operated on the neutral path.

FIG. 8 is a diagram showing a state of the operation plate, the right and left operation plates in a state where the operation lever is operated to the 3.4 stop position of the right operation path.

FIG. 9 is a diagram illustrating a state of the operation plate, the right and left operation plates when the operation lever is operated to the 3.4 stop position of the left operation path.

FIG. 10 is a diagram illustrating a state of the operation plate, the right and left operation plates in a state where the operation lever is operated to the all-row stop position of the left operation path.

[Explanation of symbols]

7 Planting Device 10 Planting Arm 12 Seedling Stand 19a, 19b, 19c, 19d, 19e Minority Clutch 33 Driver Seat 49 Operating Lever 51, 52, 54 Right Operating Unit 61, 62, 64 Left Operating Unit 63 Neutral Path 65 Right operation path 66 Left operation path

Claims (4)

[Claims] 1. A seedling rest on which seedlings are placed, wherein planting arms for taking out seedlings from a lower part of the seedling rest and planting the seedlings on a rice field surface are arranged at predetermined intervals in the left-right direction according to the planting strips. A plurality of clutches capable of transmitting and disconnecting power to and from a small number of the planting arms to constitute a seedling planting device, and a right-hand operation capable of operating the minority clutches on a transmission side and a blocking side. , A left operating part capable of operating the minority clutch to the transmission side and the disengagement side, and an operation lever that is artificially operated. The operation is performed by linking the operation lever to the right operation part. By operating the right operation section with the lever, first, the rightmost minority clutch is operated to the disengagement side, and then the minority clutch adjacent to the rightmost left side is operated to the disengagement side, and the leftmost minority clutch is operated to the left side. Adjacent minority clutches sequentially block First, by operating the right operating unit and the minority number clutch so as to be operated to the side, operating the left operating unit with the operating lever by linking the operating lever to the left operating unit, The leftmost minority clutch is operated to the disengagement side, then the leftmost rightmost minority clutch is operated to the disengagement side, and the rightmost minority clutch is sequentially operated to the disengagement side. , A riding type rice transplanter in which the left operating section and a minority number of clutches are linked. 2. A vehicle comprising: a neutral path; a right operation path in which the operation lever is linked to the right operation section; and a left operation path in which the operation lever is linked to the left operation section.
The right operation path extends in a direction substantially orthogonal to the neutral path from one end of the neutral path, and the left operation path extends in the same direction as the right operation path from the other end of the neutral path. When extending and operating the operation lever to the neutral path, all minority clutches are operated to the transmission side, and the operation lever is operated in the direction away from the neutral path along the right operation path. Thus, first, the rightmost minority clutch is operated to the disengagement side, and then the minority clutch adjacent to the rightmost left side is operated to the disengagement side,
The right operation unit and the minority clutch are linked so that the minority clutch adjacent to the left side is sequentially operated to the disengagement side, and the operation lever is moved away from the neutral path along the left operation path along the left operation path. By operating, first, the leftmost minority clutch is operated to the disengagement side, and then the minority clutch adjacent to the leftmost right side is operated to the disengagement side,
The riding type rice transplanter according to claim 1, wherein the left operating section and the minority clutch are linked so that the minority clutch adjacent to the right side is sequentially operated to the disengagement side. 3. The right-hand or left-hand operation path is provided at an end of the right-hand or left-hand operation path opposite to the neutral path, with a full-row stop position at which all minority clutches can be operated to the disengagement side. Riding rice transplanter. 4. The operation lever, the neutral path, the right and left operation paths are arranged on the lateral side of a driver's seat, the neutral path is set in the lateral direction of the body, and the right and left operation paths are set in front and rear of the body. The riding type rice transplanter according to any one of claims 2, 3, and 4, which is set in the direction.