JPH0646623A - Rice transplanter - Google Patents

Abstract

PURPOSE:To make reduction in right and left width of a transplanting part by simple constitution, to shorten removal operation of a seedling placing part during reduction in the right and left width and to secure substantial reduction in right and left width of a transplanting device itself when the right and left width is not changed. CONSTITUTION:A rice transplanter wherein after a right and left reciprocating seedling placing stand 42 is moved to a turning position at one side of the right and the left, a seedling placing part 42-1 (or 42-8) of the outermost row at the moved side is detachably or foldably constituted and both right and left end parts 43' of a supporting rail 43 at the lower side of the seedling placing stand 42 is detachably or foldably formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter in which the lateral width of a seedling planting working section can be reduced.

[0002]

2. Description of the Related Art Conventionally, in Japanese Utility Model Laid-Open No. 57-100826, the outermost end seedling mounting portion is configured to be removable, and further, the left and right end portions of the support rail on the lower end side of the seedling mounting base are removable. A rice transplanter is disclosed which is configured as described above to reduce the left and right width of the work section for planting seedlings to make it convenient for transportation and storage.

[0003]

In the conventional one, when the lateral width of the machine body is reduced, the seedling placing portion of the outermost end strip is removed on both the left and right sides. In addition to this, the space for placing the removed seedling mounting portion also becomes large, resulting in poor efficiency. Even if the left and right sides of the outermost end seedling placing section are removed to reduce the left and right width of the seedling placing table by two rows, the lateral width of the planting device itself does not change, and the substantial seedling placing table 1
Only the width of the strip could be reduced. Therefore, it is possible to reduce the lateral width of the planting work part with a simple configuration,
In addition, the task of removing the seedling placing portion when the left-right width is reduced is also shortened, and a substantial left-right reduction amount is secured when the left-right width of the planting device itself does not change.

[0004]

In order to solve the above-mentioned problems, the present invention is to move the seedling placing table 42 which reciprocates left and right to the reciprocating folding position on one of the left and right sides and then to move the seedling placing table 42 to the maximum position on the moved side. The seedling placing portion 42-1 (or 42-8) of the outer end strip is configured to be detachable or foldable, and the left and right end portions 43 'and 43' of the support rail 43 on the lower end side of the seedling placing table 42 are attached and detached. Alternatively, it is a rice transplanter characterized by being foldable.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. The riding rice transplanter 1 is configured by mounting a seedling planting work machine 4 on the rear side of the traveling vehicle body 2 via an elevating link device 3 that moves up and down. The traveling vehicle body 2 is provided with a pair of left and right front wheels 6 and 6 for driving rotation for steering and a pair of left and right rear wheels 7 and 7 for driving rotation. Further, a mission 8 is arranged on the front side, front wheel axle frames 9 and 9 are fixed from the left and right sides of the mission 8, and front wheel final cases 10 and 10 are connected to both ends of the frames 9 and 9. The front wheels 6, 6 are attached to the front wheel axles protruding outward from the lower sides of the cases 10, 10. The power in the mission 8 is the front wheel axle frames 9 and 9, the front wheel final case.
The front wheels 6, 6 are transmitted by the transmission mechanism in the wheels 10, 10.
Is driven to rotate. In addition, the frame on the rear side of the mission 8
The front ends of the frames 11 and 11 are fixed. Frame 11,
The rear end portion of 11 is fixed to the lateral frame 12, and the lateral frame is
A rear wheel rolling shaft 13a fixed to the right and left central portions of the rear wheel frame 13 with the axis centered in the front-rear direction is fitted to the bearing portion at the center of the frame 12. The rear wheel gear cases 14, 14 are fixed to the left and right ends of the rear wheel frame 13, and the rear wheels 7, 7 are attached to the rear wheel axles protruding laterally from the outer side portions of the rear wheel gear cases 14, 14. It is installed. Therefore, mission 8
The rear wheel frame 13 to which the rear wheels 7 and 7 are attached is arranged around the rear wheel rolling shaft 13a with respect to the vehicle body frame composed of the frame 11, 11 and the lateral frame 12. It can be rolled. The power in the mission 8 is transmitted from the rear side to the left and right rear wheel gear cases 14, 14 by the rear wheel transmission shafts 14a, 14a, and the rear wheels 7, 7 are driven and rotated. In addition, the power input to the mission 8 is
From the engine E supported on the frames 11, 11 to the first belt transmission 15 (15a: engine side pulley, 15a ':
Engine output shaft, 15b: pulley on hydraulic pump side, 15
b ′: hydraulic pump drive shaft, 15 c: transmission belt), the power is temporarily transmitted to the hydraulic pump P fixedly mounted on the mission 8, and from there, the input shaft of the mission 8 is transmitted to the continuously variable second belt transmission device 16 (16 a). : Hydraulic pump side split pulley, 16
b: mission side split pulley, 16b ': mission input shaft, 16c: transmission belt. Both split pulleys 16a, 16
In b, the pulley width is adjusted in a contradictory manner by the auxiliary shift lever 27. ) Is transmitted at high speed and continuously variable speed. Incidentally, an alternator G mounted on the engine E is transmitted from a second output shaft of the engine E by a third belt transmission device 17.

Further, the traveling vehicle body 2 is provided with a steering wheel 18 for steering the front wheels 6, 6 at the front portion thereof, and the engine E
The upper side of the is covered with the engine cover 19, and the cover 19
A seat 20 is attached above. Further, a main floor 21 is provided horizontally below the seats 20 and above and near the upper ends of the front wheels 6, 6. This floor 21
Is composed of left and right floor portions 21a, 21a on both left and right sides of the seat 20 and the handle 18, and a central floor portion 21b connecting the left and right floor portions on the front side of the seat 20. Further, on the rear side of the seat 20, a rear floor portion 21c is horizontally provided in the left and right portions above the upper ends of the rear wheels 7 and 7 so as to connect the rear end portions of the left and right floor portions.

Further, on the outer periphery of the main floor 21,
The extension floors 22a, 22a, 22b are the main floor 2
It is provided so as to be at almost the same level as the floor surface of No. 1. Reference numerals 22a and 22a denote left and right extended floors on the left and right outer sides of the left and right floor portions 21a and 21a, and 22b denotes a rear extended floor on the rear side of the rear floor portion 21c. Left and right expansion floor 2
2a and 22a are located outside the left and right positions of the rear wheels 7 and 7 and are located inside the seedling mounting parts 42-1 and 42-8 of the left and right end strips of the seedling mounting base 42 of the planting work machine 4. It is provided so that it can be done. Left and right ends 22 of the rear extension floor 22b
b'and 22b 'are fixed floor portions 22b "fixed to the vehicle body
And a hinge provided with a rotating shaft in the front-rear direction and provided so as to be foldable inside the vehicle body.
When the 2b 'is expanded, it is located in front of the seedling mounting portions 42-1 and 42-8 at both left and right ends of the seedling mounting table 42, and when folded, the left and right outer ends of the rear expansion floor 22b are the left and right expanded floors 2.
It is provided so as to be substantially at the same positions as the left and right outer ends of 2a and 22a.

The main floor 21 (21a, 21a,
21b, 21c) are molded of synthetic resin, and a rubber mat MT is provided on the horizontal floor surface of the floor 21.
Are locked and spread. Expansion floor 22
The floor surfaces of a, 22a, and 22b are made of metal mesh so that the lower side can be seen from the floor surface. Therefore, even if the floor surface of the vehicle body is expanded, it is possible to prevent the lower part of the vehicle body from being difficult to see due to the expansion. In particular, the confirmation of the passing state of the rear wheels 7, 7 and the state of the front side portion of the planting work machine 4 are not hindered. 21 'and 21' are lifting steps, which are used when getting on and off the floor from the left and right sides of the aircraft. It is also possible to get on and off the floor directly from the front of the aircraft.

Further, the lower side of the handle 18 is a post cover.
A display panel section 24 is provided on the upper portion of the post cover 23 for displaying various operating states.
A main shift lever 25 and a rear wheel differential lock lever 26 are provided on the left side, and an auxiliary shift lever 27 and an accelerator lever are provided on the right side of the display panel section 24 and its periphery. While operating the handle 18 while sitting on the seat 20, the operator can easily change the levers and visually confirm the operation of the levers. It should be noted that a pedal that the operator depresses with his / her foot is provided on the lower rear side of the post cover 23, and the clutch pedal 2 is provided on the left side.
8, rear wheel clutch brake pedal 29a, 2 on the right
9b, and a front wheel diff lock pedal 30 is provided on the front floor portion of the seat 20.

The lifting link device 3 includes frames 11 and 11.
An upper link 32 and lower links 33, 33, which are rotatably attached to a link base 31 fixed to the rear side, are provided, and a vertical link 34 is connected to the rear ends of these upper and lower links. Then, a connecting shaft 40a fixed to the transmission case 40 of the seedling planting work machine 4 is rotatably coupled to the bearing portion projecting rearward from the lower end of the vertical link 34, and the seedling planting work machine 4 is attached.
Is rotatably attached to the left and right with respect to the traveling direction. A base side of the hydraulic cylinder 35 is pivotally supported by a supporting member fixed to the frames 11 and a piston rod side is integrally connected to a base portion of the upper link 31 to a tip end portion of a swing arm 31a extending downward through a spring. There is. Hydraulic cylinder 3
When 5 is expanded / contracted, the lifting link device 3 moves up and down,
The seedling planting work machine 4 can be moved up and down. The hydraulic cylinder 35 is switched and operated by a hydraulic valve 36.

The seedling planting work machine 4 has a structure of eight-row planting. First, the transmission case 40 is connected to the elevating and lowering link device 3 so as to be able to roll left and right, and the transmission case 8 of the traveling vehicle body 2 to the first planted transmission shaft 8a and the intermediate gear case.
It is transmitted via the space 8b and the first planted transmission shaft 8c. The front parts of the planted transmission frames 40a, 40a extending rearward are connected to the left and right side parts of the transmission case 40, and further connected to the left and right outer parts of the front parts of the planted transmission frames 40a, 40a. Planted transmission frame 40 to the left and right via pipes 40b and 40b.
The front parts of c and 40c are connected. The four planted transmission frames 40a, 40a, 40c, 40c are juxtaposed in the front-rear direction at predetermined intervals, and the planted drive shafts 41a '... project from both sides of the rear end of each transmission frame. Its rotation axis 41
The rotation cases 41a of the planting device 41 are mounted on a '... so as to be driven to rotate. In addition, four planted transmission frames 4
The rear ends of 0a, 40a, 40c and 40c are provided with brackets 40f, which are fixed to the upper portions thereof, and a pipe-shaped reinforcing frame 40g which is long in the lateral direction is fixed to the transmission case 40 and the connecting pipe 40b. , 40b, and four planting transmission frames 40a, 40a, 40c, 40c and a reinforcing frame 40g connecting their rear end portions, the frame of the planting work machine 4 is formed into an "eye" shape. It is structured and stable in strength.

The planting device 41 comprises the planting drive shaft 41a '.
And a rotating case 41a connected to the rotating case 41a.
Two planting tools 41b, 41b mounted on both end sides of a
Consists of. The planting tools 41b, 41b are the rotating case 41.
By the transmission mechanism in a, the tip of the fork-shaped seedling separating tool fixed to the planting tools 41b, 41b by rotating in the opposite direction of the rotation of the rotating case 41a is vertically deformed to form an elliptical closed locus. It works like drawing. As a result, the seedling placement table 42 reciprocates left and right to sequentially supply the seedlings on the seedling placement surface 42a to the seedling dividing ports 43c of the support rail 43, while the seedling separating tool of the planting tool 41b. The seedlings supplied to the seedling take-out port are separated and held, and when reaching the field, the seedlings held by the seedling separating tool are extruded by the seedling pushing mechanism provided in the planting tools 41b ...

The seedling placing table 42 is provided so as to be inclined so that the front side is in a higher position, and is supported on the back side of the seedling placing surfaces 42a ... That is, the engaging and sliding contact members 42b, which are fixed to the lower back side of the seedling mounting surface 42a, are attached to the left and right long support rails 43 supported by the planted transmission frames 40a, 40a, 40c, 40c. Slidingly engaged, seedling mounting surface 42
Connection pipes 40b and 4b fixed to the transmission case 40 are provided in the recesses of the U-shaped support frame 44 fixed to the upper back side of a.
Seedling table supporting frames 40d and 4d whose base is fixed to 0b.
Rollers 40e, 40e provided at the upper end of 0d are rotatably engaged with each other to support the seedling table 42 so as to be movable left and right. Then, the transmission case 40 is mounted on the seedling mounting table 42.
Both ends of a laterally moving rod 40e that reciprocates left and right by a left and right reciprocating mechanism are connected via connecting members 40e 'and 40e', and reciprocate left and right.

The support rail 43 is provided with an engaging sliding contact member 42.
A section 43a having a cross section shaped like a "mouth" engaging with b ...
And a portion 43b having a """-shaped cross section for receiving the lower end surface of the seedling placed on the seedling mounting surface 42a ... Are integrally formed. Are provided with U-shaped seedling dividing openings 43c at predetermined intervals, and the seedling separating openings 43c are provided with the seedling separating tools of the planting devices 41b of the planting device 41 for each row. It is designed to intervene when the seedlings are separated.
The rubber seedling division plan fittings 43d are attached to the left and right edges of the ..., and the planting tool 4 is provided on the front side of the edge of the seedling division opening 43c.
Metal wire guide members 43e formed in a shape along the path of the tip of the seedling separating tool 1b are attached.

Further, belt type seedling vertical feeding devices 45 are provided on the lower side of each row of seedling mounting surfaces 42a of the seedling mounting table 42, and the seedling mounting table 42 moves in the left-right direction to plant the seedlings. 41 ... divides the lower end one row of seedlings from the seedling dividing port 43c ... And transplants, and transfers the seedling so that the lower end one row of the next divided and transplanted is located above the seedling dividing opening 43c. The structure of the seedling vertical feeding device 45 is composed of a drive roller 45a, a rotary roller 45b rotatably supported, and its roller 45a.
It consists of a seedling feeding belt 45c which is endlessly wound around 45b and has a small protrusion on its outer circumference. Drive roller 45a ...
The two rollers are attached so as to rotate integrally with one roller drive shaft 45d. The drive arms 45e are respectively attached to the respective roller drive shafts 45d.
It is attached via. Drive arm 45e ...
When the seedling mounting table 42 moves to the left and right reciprocating end positions,
Seedling vertical feed drive shaft 4 protruding and rotating from the transmission case 40
Seedling vertical feed drive arm 45h integrally attached to 5g
The roller portions 45h 'of ... Are contacted and rotated by a predetermined rotation angle, the drive rollers 45a ... Are driven and rotated, and the seedling feeding belt 45c is rotated by a predetermined amount. Roller part 45
When h ′ ... Are separated from the drive arms 45e ..., The return arms 45k ... Attached to the drive arms 45e ... Return the drive arms 45e. Rotation
The rotary shafts 45i of the rollers 45b are rotatably supported by both ends of each shaft by springs 45j in the direction in which the belts 45c are stretched.

Reference numeral 46 denotes a seedling retainer. This seedling holder 4
6 is provided for each row, and each seedling mounting surface 4 of the seedling mounting table 42 is provided.
The seedlings placed on 2a ... are prevented from floating, and are provided so as to be movable so as to be able to switch between a seedling holding working state and a non-working state. The specific structure of the seedling holder 46 is as follows. That is, the shafts 46b are rotatably supported for each row by the supporting members 46a, 46a, which are fixed to the upper and lower central side upper surfaces of the partition portions 42d of the row seedling mounting surfaces 42a of the seedling placing table 42. There is. The rod-shaped main seedling-holding members 46c, 46c, 46c ... are fixed to the shafts 46b so that the axis of the main seedling-holding members 46c, 46c, 46c ... Is oriented in the seedling vertical feeding direction (from the seedling table upper side to the lower-side seedling division 43). 46c, 46c,
The lower end of 46c is fixed to each shaft 46d ... Further, short rod-shaped auxiliary seedling pressing members 46e, 46e ... Are provided in parallel between the main seedling pressing members 46c, 46c, 46c ... And the lower end portion thereof is fixed to the lower shaft 46d. Left and right ends 46d 'and 46d' of the lower shaft 46d
Is bent toward the lower end of the seedling mounting surface so that it can engage with engaging holes 46g, 46g, etc. provided in the locking members 46f, 46f, ... fixed to the upper surface on the lower end side of the partition walls 42d ,. . If the left and right ends 46d 'and 46d' of the shaft 46d are engaged with the engagement holes 46g and 46g, the seedling retainer 46 is locked in the seedling retainer operating state, and the seedling retainer members 46c ... When the holes 46g, 46g are disengaged and the seedling pressing members 46c, 46e, ... are rotated upward around the upper shaft 46b, the seedling pressing member 46 is brought into the seedling pressing inactive state. Shaft portions 46f ′, 46 of the locking members 46f, 46f
It is fixed to the f's with screws 46g 'and 46g' so that the fixed positions can be adjusted, and the positions of the seedling holding members 46c ..., 46e ... With respect to the seedling mounting surface 42a in the seedling holding state can be adjusted. It is possible to adjust the seedling pressing action positions of the pressing members 46c.

47 is a seedling stopper. This seedling stopper 4
7 are attached to the seedling retainer 46 of each row and receive the lower end of the seedling placed on the seedling placing table 42, and are movable so that the seedling receiving action state and the non-action state can be switched. It is provided in. Seedling stopper 47 ...
Is the arm part 47 on both left and right ends of the seedling stopper part 47a.
b and 47b are formed by a plastic material in a U shape, and the locking portion 47 is attached to the seedling stopper portion 47a.
a ', 47a' and notch 47a "...
Engagement portions 47b ′ and 47b ′ are provided on the cam portions 47b and 47b. The engaging portions 47 of the arm portions 47b and 47b
b'and 47b 'are rotatably engaged with and attached to the left and right ends of the lower shaft 46d. Then, at the upper ends of the "" -shaped members 46h, 46h fixed to the upper part of the lower shaft 46d, the locking parts 47a ', 47 of the seedling stopper part 47a are provided.
When a'is engaged, the seedling stopper 47 is locked in the seedling receiving non-acting state, and the engagement is removed to release the seedling stopper portion 47.
When a is rotated to above the seedling mounting surface 42a, the stopper-
The portion 47a receives the lower end surface of the seedling placed above it and prevents the seedling from being sent below. still,
When the seedling retainer 47 is located in the seedling receiving function, the seedling retainer members 46c ..., 46e ... Enter the notches 47a ″ of the stopper portion 47a. When the engaging portions 46g, 46g ... Are disengaged and the upper shafts 46b are rotated upward to make the seedling retainer inoperative, the seedling stoppers 47 ...
Since they are attached to 6 ..., they rotate together to open the space at the lower end of the seedling stand. Therefore, when the seedling planting work is completed and the seedlings remaining on the seedling placing table are taken out, and the work around the seedling dividing port 43c at the lower end of the seedling placing table is facilitated. Incidentally, T is a resistance rod, which is a resistance rod mounting member integrated with mounting members 46f "and 46f" for fixing the locking members 46f and 46f of the seedling retainer 46 to the upper surfaces of the partition wall 42b ... It is detachably attached to T1 and T1.

A center float 48 and left and right side floats 49, 49 are provided below the planting work machine 4. When each float is in contact with the mud surface of the field, a part of the weight of the machine is received by this contact portion. In addition, each flow
When the aircraft is advanced with the toe grounded, the float slides while leveling the mud. The center float 48 is provided in a shape to level the two planting positions in the center, and the left and right side floats 49, 49 are provided in a shape to level the three planting positions on the left and right. In addition, the ground leveling parts 49a, 49a, 4 which are long before and after the left and right side floats 49, 49
Since the inner portions 49a and 49a of 9b and 49b are arranged on the rear side of the rear wheels 7 and 7, the wheel marks of the rear wheels 7 and 7 are surely leveled by the long inner leveling portions 49a and 49a before and after this. It In addition, the outer side portion 49 of the ground leveling portions 49a, 49a, 49b, 49b that are long before and after the left and right side floats 49, 49.
b and 49b are auxiliary wheels 7a and 7a which are additionally attached to the outside of the rear wheels 7 and 7 (in order to increase the propulsive force of the machine body and suppress the subsidence when the mud in the paddy field is soft and the plow position is deep). Since the wheels are arranged on the rear side, the wheel marks of the auxiliary wheels 7a, 7a are surely leveled by the outer leveling parts 49b, 49b which are long in front of and behind this. The center float 48 is also a sensor for detecting irregularities in the field scene, and the hydraulic valve 2 is moved according to the vertical movement of the sensor float 48.
8 is working. That is, when the center float 48 moves upward, the hydraulic valve 36 is actuated in the direction to extend the hydraulic cylinder 35, and conversely, the center float 4 moves.
When 8 moves downward, the hydraulic valve 36 is operated in a direction to contract the hydraulic cylinder 35.

Numerals 50 and 50 are spare seedling mounts, which are planting work machines 4.
The seedlings to be supplied are placed on the seedling frame 50a in multiple stages.
... are support frames 5 fixed to the upper portions of the front wheel final cases 10 and 10 of the traveling vehicle body 1 on the left and right sides, respectively.
0b and 50b are provided so as to be rotatable around the vertical axis. Specifically, the lower end of the seedling frame frame 50d ... to which the seedling frame supporting members 50a ′ supporting the seedling frame 50a from below are fixed and horizontally support the seedling frame 50a at predetermined intervals. The rotary shaft 50 is fixed to one end of the rotary frame 50e.
e'is fixed so that its axis is directed downward. The rotation shaft 50e 'is rotatably fitted to a bearing portion provided on the upper portion of the support frame 50b. Also, the support frame 5
On the base side of 0b, a pedal 50f is attached rotatably up and down so as to be slightly above the floor surface of the step floor 4. A rotation lock rod 50g is pivotally attached to the pedal 50f, and an upper side of the rod 50g is slidably fitted in a rod hole provided in a support plate 50c fixed to the rotation frame 50e. Are pivotally supported. A spring 50h is attached between a support plate 50c and a washer 50g 'fixed to the tip side of the rod 50g to urge the rod 50g upward. On the other hand, a disc-shaped rotation lock plate 50i is fixed to the rotation frame 50e so as to be coaxial with the axis of the rotation shaft 50e '. The rotation lock plate 50i is provided with a plurality of lock holes at predetermined positions, and when the tip of the rod 50g is engaged with the lock holes, the rotation frame 50i is formed.
The rotation of e is locked. When the seedling frame 50a is rotated and locked at another position, if the operator depresses the pedal 50g with his / her foot, the rod 50g moves downward, and the engagement between the lock hole and the tip of the rod 50g is released. , Rotating frame 5
The rotation lock of 0e can be released. The rotation lock position is at least the position of the seedling frame in plan view, and the handle 1
It is provided so as to be located on the left and right side positions of 8 and to the rear side from the position so as to be located above the left and right floor portions 21a, 21a near the seat 20. While planting, handle the seedling frame position from the front-rear balance and habitability on the floor.
The left and right sides of the floor part 21 are located near the seats 20 in order to reduce the width of the body when storing the body.
It is located above a and 21a. 50j is a seedling take-up plate storage frame, which is a frame for storing the seedling take-up plate P for scooping the seedlings from the seedling box.

Numerals 51 and 51 are row-aligned markers, which are provided on the left and right sides of the front part of the machine body, and the marker bodies 51a and 51a of the markers are located above the seedlings with the adjacent rows. By arranging the seedlings in the above position, the spacing between the seedlings being planted and the adjacent seedlings having been planted is set to a predetermined interval. In the construction of this alignment marker 51, first, a first marker shaft 51b fixedly attached to the machine body is horizontally mounted with a first marker station 51c so as to be rotatable back and forth. A second marker station 51e is horizontally mounted on a second rotating shaft 51d 'of a rotating connecting member 51d fixed to the outer end of the caster station 51c so as to be rotatable back and forth. Flexible marker rods 51f and 51f are attached to the outer end portion of the two marker station 51e so as to face downward.
The marker body 5 is attached to the lower ends of the marker bars 51f and 51f.
1a and 51a are attached and configured. Further, the first marker station 51c is provided with a spring 51h between a pin 51g fixed to the machine body and a pin 51c 'fixed to the first marker station 51c. Steer
51c is in contact with the aligning position stopper-51i and is aligned with the machine body in a laterally projecting direction, and the first marker station 51c rotates rearward with respect to the machine body and follows the machine body. It has a tumbler structure so that it can be biased in either the storage position or the fulcrum position. Rotating connection member 5
The second marker station 51e, which is rotatably attached to the second rotating shaft 51d 'of 1d, is attached to the stopper portion 51d "of the rotating connecting member 51d and the second marker station 51e. A spring 51j is attached between the pin 51e 'and the fixed pin 51e', and the second marker station 51e serves as a stopper portion 51d ".
The first marker station 51c is urged in such a manner that it abuts on the first marker marker 51c and overlaps with the extension line of the axis of the first marker station 51c.

Since the alignment marker is constructed as described above, when turning in a headland during planting work in a field,
The tip side of the alignment marker 51, 51 hits the ridge and the marker
When the car is rotated backward, the first marker
The caster 51c does not rotate about the first turning shaft 51b and maintains the aligned posture, while the second marker 51e does not rotate.
Rotates backward around the second rotation shaft 51d '. When it comes out of contact with the ridge, the second marker steer 51e is pulled back by the spring 51j until it comes into contact with the stopper portion 51d ". Since the position of the second rotating shaft 51d 'is set so as not to be the outermost end position when the machine body 1 is turning, the first marker station 51c is directly ridged when the machine body is turning. It is hard to come into contact with etc.

When the alignment marker is stored, the first marker station 51c is rotated rearward until it comes into contact with the machine body so that the first marker station 51c is in the retracted position, and the second marker station 51c is further rotated. 51e is fixed to the left and right expansion floors 22a, 22a by hooks 51k, 51
hook on k. In this way, the second marker station 51
Since e can be further rotated and pulled toward the machine body, the alignment marker can be pulled closer to the machine body and stored.

Numerals 52 and 52 are drawing markers for drawing the center line in the return stroke to the field scene during the forward stroke when reciprocating and planting in the field. This wire-drawing marker is a transmission frame 40 with a plant on both ends.
c, 40c around the pivotal support shafts 52a, 52a provided on the fixed attachment stations on the outer side of the front side of the marker steer 52.
b and 52b are provided so as to rotate up and down, and a marker wire body 5 is attached to the tip of the marker stations 52b and 52b.
2c and 52c are attached. The marker stations 52b and 52b are configured to be bendable in the middle, and the bent portions 52d and 52d are markers.
A spring is provided for urging the stay in the extended state. Line drawing marker of 8 row rice transplanter is a marker
Since the casters 52b and 52b become long, the seedling table 42
When the marker stations 52b, 52b are stood up and stored within the width of the left and right sides, the tip end side projects upward from the upper end of the seedling placing table 42. Therefore, when driving on the road or storing in a warehouse,
Marker stations 52b, 5 at the bent portions 52d, 52d.
Bend 2b to the inside of the machine body, and hook the tip side of the marker caster on the storage hooks 52e, 52e fixed to the machine body. As a result, the seedling placing table 42 can be stored without protruding from the upper end. Marker station 5 is used for wire drawing work.
2b and 52b are used in the extended state.

By the way, in the seedling placing table 42, the boundaries between the row seedling placing surfaces 42a ... Are partitioned by partition walls 42d. The seedling placing sections 42-1, 42-2, 42-3, 42 are provided for each row. −
4, 42-5, 42-6, 42-7, 42-8 are divided. Further, in this seedling placing table 42, the inner 6 seedling placing portions 42-2 to 7 are integrally provided, and the left and right endrow seedling placing portions 42-1 and 42-8 correspond to the inner 6 seedlings. Seedling placing section 4
It can be attached and detached from 2-2-7.

The attachment / detachment structure for the six seedling placing portions 42-2 to 42 inside the seedling placing portions 42-1 and 42-8 at the left and right ends is as follows. That is, first, the connection pipes 60, 60 are fixed to the back sides of the seedling placement surfaces 42a, 42a of the left and right seedling placement portions 42-1, 42-8. The connecting pipes 60, 60 have inner seedling placing portions 42-2, 42-.
7 is fitted into the fitting holes 61a of the connecting pipe receiving members 61, 61 fixed to the back side of the seedling placing surfaces 42a, 42a of No. 7 and mounted. Then, the inner seedling placing portions 42-2, 42-
The connection plates 62, 62, 63, 63 provided in 7 are engaged with the connection plates 64, 64, 65, 65 which are fixed to the seedling mounting portions 42-1 and 42-8 on the left and right ends to be fastened. Fixed.

The connecting fixtures 62, 62, 63, 63 are provided on the upper and lower sides of the outer ends of the inner seedling placing portions 42-2, 42-7, and are fixed to the backsides of the seedling placing surfaces 42a, 42a. Mounting metal fittings 62a, 62a, 63a, 63a (mounting metal fittings 63a, 63a on the lower side are integrated with the bearing metal fittings of the rollers 45a, 45b of the seedling longitudinal feeders 45, 45, shafts 45d, 45i ...) Boss portions 62b, 62b, 63b, 63b each having a screw hole integrally fixed to the mounting bracket, and screw shafts 62c, 62c screwed into the screw holes of the boss portion,
63c, 63c (knobs 62d, 62d,
63d, 63d are integrally provided), and pressing members 62e, 62e, 63 loosely fitted to the outer circumference of the screw shaft.
e, 63e. The boss portion 62b of this connecting fixture,
62b, 63b, 63b and pressing members 62e, 62
e, 63e, 63e, in the gaps between the left and right end strips 4-1, 64-8 side connecting plates 64, 64, 6
5, 65 are inserted, and the V-shaped notches 64a, 64a, 65a, 65a formed in the connecting plate are engaged with the screw shafts 62c, 62c, 63c, 63c.
In this state, turn the knobs 62d, 62d, 63d and 63d by hand to move the screw shafts to the boss portions 62b, 62b, 63b and 63b.
It is configured such that the connecting plate is screwed into the screw hole, and the connecting plate is sandwiched between the boss portion and the pressing member to be tightened and fixed. On the contrary, when detaching, the connecting plate can be easily pulled out by turning the knob in the opposite direction to loosen it.

The seedling mounting portions 42-1 and 42-of the left and right end strips are provided.
8 is mounted, the seedling vertical feeding devices 45-1, 45-8 of the seedling placing portions 42-1 and 42-8 and the inner seedling placing portion 42
-2, 42-7 and the vertical seedling feeders 45-2, 45-7 are connected so as to interlock with each other. That is, the inner seedling placing portion 42
-42, 42-7 roller drive shafts 45d-2, 45d-
7, drive arm members 45e, 45e are attached to the inner shaft end portion thereof via ratchet mechanisms 45f, 45f, and a drive clutch body 66a having a clutch pawl on the outer shaft end portion,
66a is attached integrally. This drive clutch body 6
6a, 66a, rollers of seedling mounting portions 42-1 and 42-8
The driven clutch bodies 66b and 66b attached to the drive shafts 45d-1 and 45d-8 so as to rotate integrally with each other engage with each other when the seedling placing portions 42-1 and 42-8 at the left and right ends are attached.
The driven clutch bodies 66b and 66b are provided on the roller drive shaft 45.
They are attached to d-1 and 45d-8 so as to rotate integrally and slidably in the axial direction, and are further urged toward the shaft end side by springs 66c and 66c. Therefore, when connecting the drive clutch bodies 64, 64, the driven clutch body side can escape even if the clutch claws of both clutches abut against each other. In addition, the meshed state is quickly changed.

The seedling placement parts 42-1 and 42-of the left and right ends are provided.
In the state where 8 is attached, the connecting pipes 60, 60 are
Rollers 67, 67 rotatably supported on the working machine 4 side.
It is configured so that it can be moved left and right. The rollers 67, 67 are planted transmission frames 40c at the left and right ends,
Roller support members 68a fixed to the left and right seedling placing section support frames 68, 68 having bases fixed to the front outer side of 40c,
It is rotatably attached at 68a. The upper end portions of the left and right seedling placing section support frames 68, 68 are provided on the seedling placing table support frame 4.
The left and right ends of the horizontal frame 69 connected to the upper ends of 0d and 40d are connected. By the way, the lateral frame 69 is a roller which is rotatably engaged in the concave portion of the U-shaped support frame 44 fixed to the upper part of the inner six-row seedling placing portions 42-2 to 42-7.
Roller shafts 40e ', 40 that pivotally support 40e, 40e
e'is stuck.

Also, the seedling placing portions 42-1 and 42 on both the left and right ends are provided.
-8, seedling retainers 46-1, 46-8 and resistance rod T
-1, T-8 are independently supported by the seedling mounting part. That is, the support member 46a of the seedling retainer 46-1 (46-8),
46a and mounting members 46f ", 4f of shaft portions 46f ', 46f' to which locking members 46f, 46f of the seedling retainer 46 are fixed
6f ″, and the resistance rod mounting members T1 and T1 are the seedling mounting portions 4
2-1 (42-8) is integrally fixed to both left and right sides. Therefore, the seedling retainers 46-1, 46-8 and the resistance rod T-
1, T-8 can be removed while the left and right end strips 42-1 and 42-8 remain supported.

The left and right end portions 4 of the support rail 43 are also provided.
3'and 43 'are also seedling dividing ports 43c and 43c on both left and right sides
It can be attached and detached from the vicinity. A core member 70 for connection is provided in a hollow portion of a portion 43'a having a cross-sectional shape of "mouth" with which the engaging slide contact members 42'b of the left and right end portions 43 ', 43' of the support rail engage. , 70 are screwed together, and the core material 7
Nos. 0 and 70 are inserted into the hollow portion of the inner support rail 43 having a cross-sectional shape of "mouth" shape, fitted and mounted.
Then, the knobs 71a, 7 provided on the inner support rail 43 side
1a is screwed and fixed in the screw holes 70a, 70a of the core members 70, 70 inserted by screws 71, 71 integrally provided. The screws 71, 71 fix the core members 70, 70, and also fix the guide members 43e, 43e together.

The removed seedling mounting portions 42 of the left and right ends are removed.
1, 42-8 can be hooked and fixed to the seedling take-up plate storage frames 50j, 50j of the left and right spare seedling mounting tables 50, 50. That is, the section fixed to the back side of the seedling mounting surface 42a "
A plate 50j 'for hooking fixed to the seedling taking plate storage frame 50j in the downward recess of the U-shaped reinforcing frame 72,
Hook 50j 'in. Then, attach one of the hooks 73a and 73a of the rubber band 73 to the seedling placing section 42-1.
Hook the lower end of (42-8), the other side of the upper seedling frame 5
Hook it to 0a. At this time, the left and right ends 43 ′ and 43 ′ of the support rail to be removed together are also placed on the upper seedling frame 50 a and fixed by hanging the rubber band 72.

The left and right end portions 4 of the support rail 43 are also provided.
When the rail guards 74 and 74 for guarding the 3'and 43 'are provided, the seedling placing portions 42 of the left and right end strips are provided as described above.
When one or both sides of -1, 42-8 are removed to reduce the width of the machine body, the rail guards 74, 74 are folded downward. The rail guards 74, 74 are configured to be rotatable up and down about the front-rear rotation shafts 74a, 74a, and the folding rotation axis position of the rail guards 74, 74 is right and left end portions 43 of the support rail. It is provided inside the left and right ends of the support rail 43 when the ', 43' are removed. Further, the guard portions 74 on the left and right outer sides of the rail guards 74, 74.
b and 74b serve as a grounding portion when folded, and are adapted to enter the outer constricted portions 49c and 49c of the side floats 49 and 49 to be grounded. Further, the axial center positions of the rotation support shafts 52a, 52a of the marker markers 52b, 52b of the wire drawing markers 52, 52 are also obtained when the support rail left and right end portions 43 ', 43' are removed. The support rails 43 are provided inside the left and right ends of the support rail 43.

As described above, the seedling placing portion 42-1 (or 42-8) at the outermost one end on the left and right and the left and right end portions 43 ', 43' of the support rail are removed, and the work machine for planting is removed. The width on the 4 side is made narrower, and the alignment marker 51, 51
It is hooked to k and 51k to put it in the stored state, and the spare seedling stand 5
0 and 50 near the seat 20 and left and right floor portions 21a and 21a
When the left and right ends 22b 'and 22b' of the rear extension floor 22b are folded inward, the width on the traveling vehicle body 2 side can be further narrowed.

By the way, the seedling mounting portions 42-1 on the left and right ends,
42-8, both seedling mounting parts 42-2 for the inner 6 rows
It can be removed from ~ 7 to narrow the aircraft width,
If you remove it as follows, removal work will be easier,
Moreover, the width is almost the same as the width of the body when the seedling mounting portions 42-1 and 42-8 on both the left and right ends are removed, and the efficiency is good. That is, the seedling mounting table 42 that reciprocates left and right is moved to a reciprocating folding position on one of the left and right sides and stopped, and in that state, the seedling mounting section 42-1 (or 42-) of the outer end strip on one of the left and right sides is moved. 8) Remove, and further, the left and right end portions 43 ', 43' of the support rail
Remove (see Figure 3). Thereby, the left and right end positions of the seedling placing table 42 and the support rail 43 are arranged at the left and right end strips.
It becomes narrow to the vicinity of the left and right positions of 1, 41. Further, the center of gravity position of the work equipment 4 with seedlings (the center of gravity position of the work equipment 4 with seedlings in the state where the seedling mounting table 42 is positioned at the left-right center position) is biased to one side (right side in FIG. 3). In this case, the seedling placing table 42 is moved to the left and right reciprocating folding position on the side where it is biased and stopped, and the outermost end seedling placing portion 42 on the moved side is stopped.
Remove -1. The seedling placing table 42 in a state in which the seedling placing portion 42-1 is removed is slightly biased to the left side, but the bias of the center of gravity position to the right side is balanced and the seedling placing portion 42-1 is balanced.
The seedling planting work machine 4 as a whole does not tilt greatly to the left and right with the detached state. In the above-mentioned configuration, the seedling mount 42
Even if the seedling placing parts 42-1 and 42-8 on both sides of the left and right outermost end strips are detachably arranged and the seedling placing table 42 is moved to either the left and right reciprocating folding positions, the above-mentioned planting work is performed. Although it is possible to reduce the lateral width of the machine, it is sufficient to detachably mount only one of the left and right seedling placing sections 42-1 or 42-8. Also, the left and right outermost seedling mounting portions 42-1 and 42-8 are configured to be foldable upward or downward of the machine body, and the left and right end portions of the support rail 43 on the lower end side of the seedling mounting base are configured. Even if 43 'and 43' are also configured to be foldable, it is possible to reduce the lateral width of the planting work machine as described above.

[0035]

The operation and effect of the invention: After moving the left and right reciprocating seedling placing table 42 to the left and right reciprocating folding position, the outermost end seedling placing portion 42-1 (or 42-) on the moved side. 8)
Of the support rail 43 on the lower end side of the seedling mounting table 42, and the left and right end portions 43 'and 43' of the support rail 43 on the lower end side of the seedling mounting table 42 are configured to be detachable or foldable. 42 to the left and right one side reciprocating folding position and stop, and remove the seedling placing part 42-1 (or 42-8) of the outer edge strip on the left and right one side moved in that state, and further -When the left and right end portions 43 ', 43' of the rail are removed, the left and right end positions of the seedling placing table 42 and the support rail 43 are narrowed to the vicinity of the left and right positions of the left and right end strip planting devices 41, 41.
Therefore, it is possible to reduce the left and right width of the planting work part with a simple structure, and also to remove the seedling placement part in a short time when the left and right width is reduced, so that the left and right width of the planting device itself does not change. The width reduction can be secured.

[Brief description of drawings]

FIG. 1 is a plan view of a riding rice transplanter.

FIG. 2 is a side view of a riding rice transplanter.

FIG. 3 is a plan view showing a state in which the horizontal width of the work machine with seedling planting of the riding rice transplanter is narrowed.

FIG. 4 is a front view showing a removal structure on the left and right end sides of the seedling mounting table and the support rail.

FIG. 5 is a rear view showing the removal structure on the left and right end sides of the seedling mounting table and the support rail.

FIG. 6 is a front view showing a mounted state of the seedling mounting table and lower portions on the left and right end sides of the support rail.

FIG. 7 is a front view showing a mounted state of the upper left and right ends of the seedling table.

FIG. 8 is a rear view showing a mounted state of the lower left and right ends of the seedling placing table.

FIG. 9 is a partial cross-sectional side view showing a supporting structure of the upper left and right ends of the seedling mounting table.

FIG. 10 is a cross-sectional view showing a configuration of a connecting fixture of a seedling placing table.

FIG. 11 is a cross-sectional side view showing a connection configuration on the left and right end sides of the support rail.

FIG. 12 is a front view showing a state in which the removed seedling mounting portions at the left and right ends are fixed to a preliminary seedling mounting base.

FIG. 13 is a plan view showing a transmission configuration of a traveling vehicle body.

FIG. 14 is a plan view showing a transmission frame structure and a float structure of the working machine with seedlings.

FIG. 15 is a sectional side view showing the configuration of the seedling retainer.

FIG. 16 is a perspective view showing a seedling stopper.

FIG. 17 is a perspective view showing the structure of a line alignment marker.

[Explanation of symbols]

 1: Passenger rice transplanter 2: Traveling car body 3: Elevating link device 4: Working machine 4 with seedling planting 42: Seedling placement table 42 42-1, 42-8: Left and right outermost edge seedling placement section 43: Support rail 43 ', 43': support rail left and right ends

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsu Nomura 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. In-house (72) Inventor Seike Rihe 1 Yakura, Tobe-cho, Iyo-gun, Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Inventor Hitoshi Yamazaki 1 Yakura, Tobe-cho, Iyo-gun Ehime Pref.Iseki Agricultural Machinery Co., Ltd. (72) Invention Kamiya Hisashi, No. 1 Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Technical Department, Iseki Agricultural Machinery Co., Ltd. (72) Inventor, Hideyuki Kusama, No. 1, Yakura, Tobe-machi, Iyo-gun, Ehime Prefecture

Claims (1)

[Claims] 1. A seedling mounting portion 42-1 (or 42-8) at the outermost end on the side where the seedling mounting table 42 that reciprocates left and right is moved to one of the left and right reciprocating folding positions. Is a detachable or foldable unit, and the left and right end portions 43 ', 43' of the support rail 43 on the lower end side of the seedling mounting table 42 are detachable or foldable.