JP3235254B2 - Rice transplanter - Google Patents

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 outermost end portion of a seedling mounting table is configured to be foldable so that the lateral width of a seedling planting machine can be reduced as required. is there.

[0002]

2. Description of the Related Art In order to reduce the lateral width of a seedling planting machine at the time of transportation and storage, the outermost end portion of a seedling mounting table is inverted to the seedling mounting surface side along the inclination of the seedling mounting table. A rice transplanter has been developed in which the outermost end portion is folded so as to be overlaid on the inner portion in the opposite direction.

[0003]

SUMMARY OF THE INVENTION
When the outermost end portion of the seedling mounting table is folded, the outer portion of the seedling mounting table protrudes toward the seedling mounting surface side, so that a concave space is generated in the inner portion. For example, in the case of an eight-row rice planting machine, a space is created on the side of the seedling mounting surface at the center four. It is wasteful to leave this space as a dead space, and it is an object of the present invention to effectively use this space.

[0004]

In order to solve the above problems, the present invention has the following arrangement. That is, in the rice transplanter according to the present invention, the seedling mounting surfaces 80a,.
Seedling stand 80 arranged side by side in the right direction and
Seedling provided with planting device 160 for planting seedlings in the field
A rice transplanter with a working machine 4 attached to the rear of the traveling body 2
And the left and right end portions of the seedling mounting table 80 after the inner portion thereof.
The fertilizer hopper 1 of the fertilizer application device 5
90, ... and the feeder 191, ... which feeds out fertilizer.
Attached to the rear of the row car body 2 in front of the seedling planting work machine 4,
And the like at the left and right end portions 80 of the seedling mounting table 80.
-1, 80-8 when folded, left and right end portions 8
0-1 and 80-8 in the space S formed on the left and right inside.
It is characterized by being arranged to be placed .

[0005]

[Effect] The left and right end portions of the seedling mounting table 80 are placed behind the inner portion.
By moving it to the upper side and folding it,
Left and right width can be narrowed. Also folded like this
A space formed inside the left and right end portions in a folded state
S is provided with a spraying device for medicines or the like,
Overhang is reduced, and before and after the rice transplanter as a whole.
The balance is good.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment shown in the drawings will be described below. The riding rice transplanter 1 is configured by mounting a seedling planting work machine 4 on an elevating link device 3 provided at a rear portion of a traveling vehicle body 2.
Further, if necessary, the fertilizer device 5 and the chemical spray device 6
Is attached.

The traveling vehicle body 2 includes a pair of left and right front wheels 10, 1
This is a four-wheeled vehicle provided with zero wheels and rear wheels 11,11. A transmission case 12 is arranged at the front of the fuselage, and front wheel axle frames 13 and 13 are provided from left and right side portions of the transmission case.
Extends to the left and right sides, and the front wheel final case 1
4, 14 are provided. Under the front wheel final cases 14, 14, front wheel support cases 15, 15 are provided so as to be capable of turning, and front wheels 10, 10 are attached to front wheel axles 10a, 10a projecting laterally from the outside thereof. Further, the front ends of a pair of left and right vertical frames 17, 17 are fixed to the back of the transmission case 12, and the horizontal frame 18 is fixed to the rear ends of the vertical frames 17, 17. A rear wheel rolling shaft 19 whose axis is oriented horizontally in the front-rear direction is fixedly fitted to the left and right central portions of the horizontal frame 18, and the rear wheel frame 20 is supported by the protruding portion of the rear wheel rolling shaft in a freely rotatable manner. ing. Rear wheel gear cases 21 and 21 are provided at left and right end portions of the rear wheel frame 20, and a rear wheel axle 11 protruding laterally from an outer portion thereof.
The rear wheels 11, 11 are attached to a, 11a. Rear wheel drive power in the transmission case 12 is transmitted to the rear wheel gear cases 21 and 2 by the retractable rear wheel drive shafts 23 and 23.
It is transmitted to 1.

[0008] The engine 30 is provided on the vertical frames 17,17. The rotational power of the engine output shaft 30a is once transmitted to a hydraulic pump 32 by a first belt transmission 31, and further transmitted to the inside of the transmission case 12 by a continuously variable second belt transmission 33 therefrom. Further, power is transmitted from the second engine output shaft 30b to the alternator 35 mounted on the engine 30 by the third belt transmission device 36.

On the upper part of the fuselage, the front wheels 10,
A steering wheel 40 for steering the engine 10 is provided, and a seat 42 is installed on an engine cover 41 that covers an upper side of the engine 10. A lower portion of the handle 40 is covered with a steering post cover 44, and a display panel 43 for displaying various operating states is provided on the upper portion.
Engine cover 41 and steering post cover 4
The periphery of 4 is a horizontal main floor 45 on which the operator can walk freely. Rear part 45 of main floor 45
a is high so as not to interfere with the rear wheels 11 and 11. Further, extended floors 46, 46 are provided on both left and right sides of the main floor 45 so that the floor surface is substantially at the same level as the main floor 45. The rear floors 46a, 46a of these extended floors are also high, like the main floor 45. The left and right expansion floors 46, 46 are located outside the rear wheels 11, 11 in a plan view, and
0 are provided so as to be located inside the seedling placement sections 80-1 and 80-8 of the left and right outermost end strips. Further, below the expansion floors 46, 46, there are provided elevating steps 47, 47 used when getting on and off the floor from the left and right sides of the aircraft. The main floor 4 directly from the front of the aircraft
It is also possible to get on and off 5.

The elevating link device 3 includes vertical frames 17, 1
7, an upper link 51 and a lower link 5 rotatably attached to a link base 50 fixed to the rear end.
2 and 52, and a vertical link 53 is connected to the rear ends of these vertical links. Then, a connection shaft 54 fixed to the seedling planting machine side is rotatably inserted and connected to a bearing portion projecting rearward from a lower end portion of the vertical link 53, and the seedling planting machine 4 is connected.
Are mounted to be rotatable left and right with respect to the traveling direction. The hydraulic cylinder 56 for driving the lifting link device has a support member (not shown) whose base side is fixed to the vertical frames 17, 17.
, And the piston rod side thereof is connected to the lower end of a swing arm 57 provided integrally with the base of the upper link 51. When the hydraulic cylinder 56 is expanded and contracted, the elevating link device 3 moves up and down, and the seedling planting machine 4 moves up and down with a constant posture. The hydraulic cylinder 56 is switch-controlled by a hydraulic valve 58 provided in the seedling planting work machine 4.

The seedling planting machine 4 includes a transmission case 60 also serving as a frame, a seedling table 80 on which seedlings are placed, and a total of eight planting devices 160 for planting the seedlings on the seedling table in a field scene. ,
… Etc.

The transmission case 60 includes a seedling table driving case 61 located at the center in the left and right directions, and four planting transmission cases 62,
... and two right and left connecting pipes 63, 63 are combined. The four planting transmission cases 62,... Are arranged at equal intervals in the front-rear position, and the central two planting transmission cases 62-2, 62-3 are at their front ends at the seedling mounting table drive case 61. The front ends of the two central planting transmission cases 62-2 and 62-3 and the front ends of the planting transmission cases 62-1 and 62-4 at both ends are connected to the connecting pipe 63. , 63 respectively. The planting devices 160 are mounted respectively on the projecting portions of the planting device mounting shafts 64 projecting from the rear end of the planting transmission case 62 to the left and right sides. The connecting shaft 54 is protruded from the center of the front surface of the seedling table driving case 61.

Power is transmitted from the transmission case 10 of the traveling vehicle body 2 to the transmission case 60 via a first planting transmission shaft 66, a planting clutch case 67, and a second planting transmission shaft 68.
The power input to the transmission case 60 is transmitted to the lower part of the seedling mounting table drive case 61, the front end of the planting transmission case 62,... And the planting main shaft 70 supported in the connecting pipes 63, 63. Further, the power is transmitted from the planting main shaft to the planting device mounting shafts 64,... Via the planting device transmission shafts 71,. The planting main shaft 70 and the planting device transmission shaft 71, and the planting device transmission shaft 71 and the planting device mounting shaft 64 are bevel gears 72, 73, 74, and 75, respectively.
Transmission link.

From both left and right sides of the seedling table driving case 61, a seedling vertical feed drive shaft 77 rotating in a fixed direction is provided.
A laterally moving rod 78 for reciprocating right and left reciprocatingly moves the seedling table.

The seedling mounting table 80 is provided so as to be inclined so that the front side is higher, and its upper surface is a seedling mounting surface 80a divided by the partition walls 81,. I have. The seedling mounting table 80 is supported on the back side of the seedling mounting surfaces 80a,. The supporting structure is a seedling mounting surface 80a,.
The sliding contact members 84 engage with the horizontal frame 82 provided at the lower part on the back side of the.
Are fixed, and the engagement sliding contact member is attached to the planted transmission frame 62,.
Is slidably engaged left and right with a long support rail 83 provided on the left and right, and a base portion is fixed to the connecting pipes 63, 63 to provide a seedling mounting table support frame 85. Rollers 86, 86 attached to the upper end of the frame
Are engaged with the U-shaped concave portions of the support frame 87 fixed to the upper rear surface of the seedling mounting surfaces 80a,. Both ends of the horizontal moving bar 78 are attached to mounting members 88, 88 fixed to the lower horizontal frame 82 via connecting members 87, 87. 80 also reciprocates left and right along the support rail 83. At the upper end of each seedling mounting surface 80a, guide frames 89,... For guiding the seedlings to the seedling mounting surface at the time of seedling replenishment are rotatably attached to the seedling mounting surface side.

The support rail 83 is provided with an engaging sliding member 8.
And the seedling mounting surface 8
0a,... Are formed integrally with a portion 83b having an L-shaped cross section for receiving the lower end surface of the seedling thereon.
Corresponding to a,..., seedling division openings 90,... As the seedling mounting table 80 reciprocates left and right, seedlings located at the lower end portions of the seedling mounting surfaces 80a,... Are sequentially supplied to the seedling dividing ports 90,. When the seedlings on the seedling mounting table 80 are separated, the planting tool 162 described later passes through the seedling dividing port 90. Note that rubber seedling dividing guides 91 are provided on the left and right sides of the edge of the seedling dividing port 90.
At the front of the edge of the seedling dividing port 90, a guide member 92 made of a metal wire and formed in a shape following the tip trajectory of the planting tool 162 is mounted.

At the lower part of the seedling mounting table 80, a belt type seedling vertical feeding device 94,.
When all the seedlings in one horizontal row located at the lower end of the seedlings a,... are transferred, the seedlings on the seedling mounting surfaces 80a,. The seedling vertical feeding device 94 is provided with an endless seedling feeding belt 95 having small projections formed on the outer peripheral portion thereof.
And the driven roller 97. A drive arm 98 is attached to a roller drive shaft 96a to which the drive roller 96 is attached via a ratchet mechanism 99. Further, a seedling vertical feed drive arm 100,... Is integrally attached to the seedling vertical feed drive shaft 77, and rollers 101,. When the seedling mounting table 80 reaches the end of the left and right strokes, the drive arm 98 contacts the roller 101 and the roller drive shaft 96
is rotated by a predetermined angle, whereby the seedling feed belt 95 is operated by a predetermined amount. Roller 1
01 moves away from the drive arm 98, the spring 103
The driving arm 98 returns to the posture before driving due to the tension of.
The rotating shaft 97 a of the driven roller 97 is pulled by a spring 104 in a direction in which the seedling feed belt 95 is stretched.

A seedling holder 110 is provided below each seedling mounting surface 80a to prevent the seedlings from floating. The seedling retainer 110 is provided with partition walls 81, 8 on both sides.
5 are supported by supporting members 111a, 111a attached to the supporting columns 111, 111 protruding therefrom, so that a seedling holding action state shown by a solid line in FIG. 5 and a seedling holding non-working state shown by a chain line in FIG. 5 can be selected. Has become. The horizontal rod 112 is rotatably supported by the supporting members 111a, 111a, and the main seedling holding rods 113, 11 are supported by the horizontal rod 112.
Numeral 3 is fixed so that its axis is oriented in the seedling vertical feed direction, and the lower end of the main seedling holding bar is connected by a horizontal bar 115. Further, a short auxiliary seedling holding rod 11 is provided between the main seedling holding rods 113,.
6 are provided in parallel, the lower end of which is
It is stuck to. Left and right ends 11 of the lower horizontal bar 115
5a, 115a are bent toward the lower end of the seedling mounting surface 80a, and are provided with engaging holes 118a, 118a formed in locking members 118, 118 fixed to the upper surfaces on the lower ends of the partition walls 81, 81.
To be engaged. The left and right ends 115a, 115a of the horizontal bar 115 are engaged with the engagement holes 118a, 118a.
When the seedling presser 110 is engaged, the seedling presser 110 is fixed to the seedling presser operating state. When the above-mentioned engagement is released and the seedling presser 110 is rotated upward around the upper horizontal bar 112, the seedling presser 110 is locked. Becomes inactive.

Further, at the lower end of each seedling mounting surface 80a, a resistance bar 119 for receiving the leaves of the seedling located at the lowermost level and lifting the leaves so that the leaves do not hang down is also provided horizontally.

By the way, these eight seedling mounting tables 80 (-1)
-8 ) , the central six sections 80-2 to 80-7 are provided integrally, but the outermost end sections 80-1 and 80-8 are provided separately from the outermost end sections 80-1 to 80-8. The end strip portion is configured to be foldable inward. The structure of the folded part is as follows.

A partition wall 8 for separating the outermost end line and the innermost line.
1-2 and 81-8 are an inner part 81a and an outer part 8
1b, and the inner part 81a is a central part 8
The outer portion 81b is integrally formed with the outermost end portion 80-1 or 80-8.
These partition walls 81-2 and 81-8 are formed higher than the other partition walls with respect to the seedling mounting surface 80a. And
A cylindrical part 120 formed at the upper end of both parts 81a, 81b
a, 120b,..., one rotating shaft 121 is inserted and provided, and the outermost end strip portions 80-1 and 80-8 of the seedling mounting table are turned inward around the rotating shaft 121, and the corresponding portions are rotated. Is folded on the inner strip portions 80-2 and 80-7. Third partition wall 81-3, 80-
7 columns 111-3, 111-7 (-3, -7
A concave column receiver 122 is fixed to the top of each partition wall, and the column 111- provided on the outermost partition walls 81-3 and 80-7 in the folded state.
The top of 3,111-7 engages with the strut receiver 122.

In addition, regarding the arrangement of the cylindrical portion, the cylindrical portion 1
20a and 120b are arranged in three sets of upper and lower parts, and 120b, 120a, 120b, 120a, 120a,
120b. In addition, the upper two sets of cylindrical portions 12
0a, 120b, there is no gap, but the lowermost cylindrical portion 1
A gap S is provided between 20a and 120b. This is for the following reason. That is, since the L-shaped portion 83a of the support rail 83 has an acute angle in a side view, the outermost end strip portions 80-1 and 80-8 of the seedling mounting table cannot be inverted at the same position. This is because the outermost end strip portions 80-1 and 80-8 are inverted in a state where the outermost end strip portions 80-1 and 80-8 are pushed up by the gap S along the inclination of the seedling mounting table in order to avoid interference with the seedling portion 83a.

When the seedling mounting table 80 is deployed, the outermost end portion 8
0-1 and 80-8 at the upper and lower two central portions 80-2 to 7
(See FIGS. 10 and 11).

In FIG. 10, reference numeral 82 denotes the horizontal frame, which is a central portion 82a near the boundary between the central portions 80-2 to 80-7 and the outermost end strip portions 80-1, 80-8. And outermost end portions 82b, 82b. The attachment members 88, 88 are fixed to both left and right ends of the central portion 82a, and the outermost end stripe portions 82b, 82b
The fixing member 1 is attached to the inner end of the
24 and 124 are fixed. A circular hole 125 penetrating right and left is formed in the fixing member 124.
A screw hole 126 is formed in an extension of the round hole 125. A fixing rod 127 having a threaded distal end is inserted into the round hole 125 of the fixing member 124 from the outside, and the distal end threaded portion is screwed into the threaded hole 126 of the mounting member 88. -8 (or 80-1) is fixed to the center portions 80-2 to 80-7. A small diameter portion 127a is formed at an appropriate position of the fixing rod 127. When the fixing rod 127 is pulled out from the screw hole 126 when the seedling mounting table 80 is folded, the tip of the knock pin 128 engages with the small diameter portion 127a. The fixing rod 127 is prevented from coming off further. Since the outer wall surface of the small diameter portion 127a is tapered, the fixing rod 127 can be pushed in. Reference numeral 129 in the figure denotes a spring for urging the knock pin 128 toward the fixed rod.

In FIG. 11, reference numeral 131 denotes a horizontal pipe provided on the upper surface of the rear surface of the seedling mounting table. The horizontal pipe also has a central portion 80-2 to 80-7 and the outermost end strip portions 80-1, 80-8. Are separated into an inner portion 131a and an outer portion 131b in the vicinity of the boundary. A male screw member 132 is fitted on the inner end side of the hollow portion of the inner portion 131a. A fixing rod 134 having a screw hole 133 formed at the tip is inserted from the outside into the horizontal pipe 1.
31 and the screw hole 133 is inserted into the male screw member 132.
To fix the outermost end portion 80-8 (or 80-1) to the center portions 80-2 to 80-7. The drop prevention mechanism of the fixing rod 134 is similar to that of the fixing rod 127, and the knock pin 137 urged by the spring 136 is engaged with the small diameter portion 134a of the fixing rod 134.

In FIG. 8 and FIG. 9, SW1 is a deployment switch, which is attached to each of the inner portions 81a of the partition walls 81-2 and 81-8 which partition the outermost end strip and the innermost strip. The outermost end of the seedling table 8
When 0-1 and 80-8 are deployed, the switch is turned on by being pushed by the outer portion 81b of the partition wall, and is turned off when the outermost end strip portions 80-1 and 80-8 are not deployed. .

The switching operation section of the planting clutch in the planting clutch case 67 is configured as shown in FIG. Reference numeral 200 in the figure denotes a clutch pin, which is engaged when the clutch is pushed in, and is disengaged when the pin is pulled out to the position shown in the figure. 201 is a clutch arm 201 connected to the protrusion of the clutch pin 200;
202 is a roller attached to the clutch arm, 203
Is a cam that comes into contact with the outer peripheral surface of the roller, 204 is a lever provided integrally with the cam, 205 is a spring that urges the clutch arm in a direction to push the clutch pin 200, and the clutch is operated by operating the lever 204. The pin 200 comes in and out and the planting clutch is turned on and off. Also, when a solenoid 205 is provided near the clutch pin 200, and the rod 205a of the solenoid engages with the groove 200a of the clutch pin 200 at the extracted position,
The planting clutch is restrained in a disengaged state.

The solenoid 205 operates in conjunction with the pair of left and right deployment switches SW1 and SW1, and when either one of the switches is off, the rod 205a projects to lock the planting clutch in a disengaged state. Rod 205a if both switches are on
Retreats to release the lock. That is, when one of the outermost end strip portions 80-1 and 80-8 of the seedling mounting table is not deployed, the transmission is not performed to the seedling planting work machine 4, and the seedling mounting section is folded and the outermost end strip portion is folded. This prevents the seedling mounting table 80 from being damaged by reciprocating the table 80 left and right and causing the outermost end streak to collide with the liquid medicine spraying device 6 described later.

As described above, the outermost end strip portion 80-
Instead of providing a deployment switch for detecting whether or not 1,80-8 is deployed, the outermost end portion 80-
1,80-8 provided folding switch SW 1, SW2 that detects whether or not folded, if at least one of the switch detects that the outermost end strip portion of the loading table seedlings are folded For example, the planting clutch may be configured to be locked in a disengaged state.

Outermost end portion 80-1, 80-8 of seedling mounting table
Is deployed, the seedling vertical feeders 94-1 and 94-
8 (-1 to -8 indicate the number of each line; the same applies hereinafter) and the vertical seedling feeders 94-2 and 94-7 of the inner line interlock (see FIG. 7). That is, the roller drive shaft 96 of the inner row seedling vertical feeding device 94-2 (or 94-7).
a-2 (96a-7) has a drive arm 98 at its inner end.
Are mounted via a ratchet mechanism 99, and a drive clutch body 140 having a clutch claw on the outside is integrally mounted. A driven clutch body 141 attached to the outermost end roller drive shaft 96a-1 (96a-8) engages with the drive clutch body 140. The driven clutch body 141 has a roller drive shaft 96a-1.
(96a-8), it is integrally rotatable and slidable in the axial direction, and is urged toward the shaft end by a spring 142. Therefore, both clutch bodies 140, 141
When the two clutch claws abut each other, the driven clutch body 141 can escape, so that
Both when it is possible to phase of the two clutch bodies 140 and 141 are linked without any difficulty even if no match, quickly becomes the engagement state.

Further, since the member having the widest left and right width in the rice transplanter is the support rail 83, the entire width of the support rail 83 can also be shortened by bending its end. The structure of the bent portion is as shown in FIGS.

That is, the support rail 83 is provided at the center fixed portion 8 at a position near the outside of the seedling dividing openings 90, 90 of the outermost end strip.
3a and a bent portion 83b, 83b at the end are separated, and both portions 83a, 83b are connected via a core 150. An end of the core member 150 on the fixed portion side is rotatably attached to the fixed portion 83a by a support shaft 151, and a pin 152 provided at an end portion on the bent portion side is connected to the support shaft 15.
1 and a long hole 153 rotatably provided on the rotation plate 153.
a. Further, the fixed portion 83a and the bent portion 83b are pulled by a spring 154 in a direction to attract each other.

When the support rail 83 is extended, the positions of the fixed portion 83a and the bent portion 83b are aligned by the core 150, and the two portions 83a and 83b are located on a straight line. At this time, the bent portion 83a is
4, the pin 152 is engaged with the inner end of the elongated hole 153. Rotated from this state, the forward bent portions 83b against the force of the spring 154 slightly overhangs Tsu Ryo引 outwardly and along the bent portion 83a to the slope of Naeno stand 80 around the support shaft 151 is, bent portions 83b is set to be at right angles to the fixed portion 83a. This state is stable because the bent portion 83b is pulled inward by the spring 154.

As shown in FIG. 16, the support rail 83 may be bent or detached inside the seedling dividing openings 90, 90 of the outermost end strip.

Further, guard members 156 and 156 for protecting the front of the left and right ends of the support rail 83 are attached to the planting transmission cases 62-1 and 62-4. The guard members 156 and 156 are also shown in FIG. Can be rotated upward as indicated by a chain line.

The planting device 160 includes the planting device mounting shaft 6.
4 and a pair of planting tools 162 and 162 attached to both ends of the rotating case. The planting tools 162 and 162 rotate in the direction opposite to the rotation direction of the rotating case 161 by the transmission mechanism in the rotating case 161, and the tip of a fork-shaped seedling separating tool (not shown) fixed to the planting tool deforms vertically. Operates to draw an elliptical closed locus. Thereby, the seedling separating tools of the planting tools 162,... Separate and hold the seedlings supplied to the seedling dividing ports 90,.

When both ends of the seedling mounting table 80 and the support rail 83 are folded, the planting device 160 of the outermost end strip is left as it is.
-1 and 160-8 project to the left and right beyond the seedling mounting table 80, so that these planting devices 160-
It is preferable that 1,160-8 can be moved inward. FIG. 17 shows an example of such a case, and the planting transmission cases 62-1 and 62-4 on the outside of the figure are separated into a front portion 62a and a rear portion 62b, and the center 62b is centered on the inside of the joint surface between the two. To be turned inward.
To make this possible, connect the front 71a and rear 71 b of the planting device transmission shaft 71 with universal Joy preparative 71c, it is necessary to structure so as to be bent in the vicinity of the junction surface . As shown by a chain line in FIG. 17, if the planting transmission case 62-4 (or 62-1) is bent inward, the outermost planting device 160-8 (or 160) is bent.
-1) no longer protrudes left and right than the folded seedling mounting table 80 or the support rail 83.

A lower part of the seedling planting machine 4 has a center float 170 and a pair of left and right side floats 171 and 171.
Is provided. When each float is in contact with the mud surface, a part of the weight of the aircraft is received by the contact portion. Also,
When the aircraft advances while the floats are in contact with the ground, the floats glide while leveling the mud surface. The center float 170 is provided in such a shape as to level the planting position at the center two lines, and the left and right side floats 171 and 171 are provided in such a shape as to level the planting position in three right and left lines.

The center float 170 is also a sensor for detecting unevenness in the field scene, and the hydraulic valve 58 is operated in accordance with the vertical movement of the center float 170. That is, when the center float 170 moves upward, the hydraulic valve 58 is operated in a direction to extend the hydraulic cylinder 56, and when the center float 170 moves downward, the hydraulic valve 58 is operated in a direction to contract the hydraulic cylinder 56.

On the left and right sides of the front of the traveling vehicle body 2, a plurality of stages of seedling frames 180a, on which seedlings to be supplied to the planting work machine 4, are placed.
Are provided. The spare seedling mounts 180, 180 are fixedly provided on the upper portions of the front wheel final cases 14, 14.
0b, 180b so as to be rotatable about the vertical axis. During operation, it is used in a state where it is pushed forward as shown in FIGS. 1 and 2, but when it is not working, it is folded back. And the body width can be reduced.

The fertilizer applicator 5 comprises a fertilizer hopper 1 for adding fertilizer.
90,..., A feeder 191 that sequentially feeds the fertilizer in the hopper downward, a fertilizer hopper 192 that is provided facing a seedling planting groove in a field scene, and the feeder 191. And a flexible fertilizing hose 193 connecting the fertilizing hoppers 192. Among them, the fertilizer hoppers 190,... And the feeders 191,... Are attached to a fertilizer application frame 195 provided horizontally on the main floor rear portion 45a. The fertilizer application frame 195 is hollow, and warm air in the engine room is supplied to the lower end of the feeder 191 through the fertilizer application frame 195 by the blower 196, thereby facilitating the flow of fertilizer in the fertilizer hose.
In addition, the fertilizer is prevented from solidifying in the fertilizer hose. Incidentally, Bro word 196 the alternator 3
5 is connected.

The chemical spraying device 6 has substantially the same configuration as the fertilizer application device 5, and has a common chemical liquid tank 210 for storing a chemical liquid such as a herbicide, and a feeder 211 for sequentially discharging the chemical liquid in the tank downward. , A flexible chemical solution hose 213 for guiding the chemical solution delivered from the delivery device to the field scene. The chemical liquid tank 210 and the feeder 211,... Are installed on a chemical liquid spraying frame 195 whose base is fixed to the planting transmission frames 62-2, 62-3. The position is in the range of the center 4 80-3-6 of the seedling rest, and the outermost end streak portion 80-1, 80-1 of the seedling rest in the folded state.
It overlaps with 80-8 in side view. In other words, it can be said that the seedling placing stand folded the outermost end strip portions 80-1,80-8, and position the inner space portion S of the outermost birth moiety. If the seedling table 80 is reciprocated left and right in this state, the folded portions 80-1 and 80-8 of the seedling table collide with the medicine spraying device 6, but as described above, the outermost end strip portion 80 of the seedling table 80 If one of -1 and 80-8 is not deployed, it is configured not to transmit to the seedling planting work machine 4, so there is no need to worry.

Since the hose 213 has a relatively large curve and a small slope due to the mounting position of the spraying device disposed in the space S, the spraying device suitable for being disposed here is as follows. It is preferable that the object to be sprayed is made of a good fluid. For example, a deep fertilizer is provided in place of the chemical sprayer.

When no spraying device is provided, FIG.
As shown in the figure, the fertilizer applicator 5 removed from the body at the time of packing
Can be stored in this space S.

[0045]

As described above, the right and left sides of the seedling mounting table are provided.
Both ends can be moved to the upper rear of the inner part
And the fertilizer hopper of the fertilizer application and the feeder that feeds the fertilizer.
At the rear of the traveling body and in front of the seedling planting machine.
And spraying devices such as chemicals on the left and right ends of the seedling table.
When folded, it is formed on the left and right inside of the left and right ends
It is located in the space S where
Use the space on the side to efficiently narrow the left and right width of the
Can be easily transported and stored.
Became. Moreover, narrow the left and right width of the seedling mounting table like that
While moving to the upper rear of the inner part of the seedling table
Paying attention to the space S formed on the left and right inside of both ends,
By effectively utilizing the space S, the fertilizer and
Spreading device and front and rear balance of the fuselage will be damaged as much as possible
It has good workability because it is installed so that there is no
It became.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter according to one embodiment of the present invention.

FIG. 2 is a plan view of the rice transplanter shown in FIG.

FIG. 3 is a transmission system diagram of a traveling vehicle body.

FIG. 4 is a plan view in which a part of a seedling planting machine is omitted.

FIG. 5 is a side sectional view of a lower part of a seedling mounting table.

FIG. 6 is a view as viewed in the direction of arrow A in FIG. 5;

FIG. 7 is a view taken in the direction of arrow B in FIG. 5;

FIG. 8 is a view showing a state in which an outermost end portion of the seedling mounting table is folded.

FIG. 9 is a sectional view of a lower part of a seedling mounting table.

FIG. 10 is a sectional view of a lower connecting portion between a central portion and an outermost end portion of the seedling mounting table.

FIG. 11 is a cross-sectional view of an upper connecting portion between a central portion of the seedling mounting table and an outermost end streak portion.

FIG. 12 is a diagram showing an end of a support rail.

13 is a view as viewed in the direction of the arrow A in FIG.

FIG. 14 is a diagram illustrating an end of a support rail in a state different from FIG. 12;

FIG. 15 is a view of a switching operation unit of the planting clutch.

FIG. 16 shows an end of a support rail according to a different embodiment.

FIG. 17 is an explanatory diagram of an example of the planting transmission frame.

FIG. 18 is an explanatory diagram of a method of packing a rice transplanter.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rice transplanter 2 traveling vehicle body 3 elevating link device 4 seedling planting work machine 5 fertilizer application device 6 chemical spraying device 60 transmission case 80 seedling mounting table 83 support rail 160 planting device

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroyuki Niiyama 1-Yakura Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor: Rieki Seike, 1-Yakura, Toze-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. (72) Inventor, Hisashi Kamiya, 1st Section, Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. Document JP-A-4-66008 (JP, A) JP-A-57-50810 (JP, A) JP-A-60-2727 (JP, Y2) (58) Fields investigated (I nt.Cl. ⁷ , DB name) A01C 11/00 302 A01C 11/02 350-353 A01M 7/00

Claims (1)

(57) [Claims] 1. The seedling mounting surfaces 80a,...
The seedling table 80 arranged side by side and the seedlings on the seedling table 80
Seedling planting provided with planting devices 160 to plant in the field
In the rice transplanter with the industrial machine 4 mounted on the rear of the traveling body 2,
Place the left and right end portions of the seedling mounting table 80 on the rear side of the inner portion.
The fertilizer hopper 19 of the fertilizer application device 5
0,.. And the feeder 191,.
Attached in front of the seedling planting machine 4 at the rear of the vehicle body 2,
And the right and left end portions 80-
The left and right ends 80 when 1,80-8 are folded
Located in the space S formed on the left and right inside of -1 and 80-8
Rice transplanter characterized by being arranged to do.