JP3324183B2 - Rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a structure in which the outermost end portion of a plurality of seedling mounting stands is foldable, and the right and left width of a seedling planting machine can be reduced as required. It relates to a rice transplanter that can be used.

[0002]

2. Description of the Related Art A rice transplanter is provided with a seedling table reciprocating left and right along a support rail and a plurality of planting devices arranged in parallel. Rice transplanters have been developed in which the end streak portion is configured to be foldable so that the lateral width of the seedling planting machine can be reduced during transportation or storage.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a rice transplanter having a rational structure and capable of reducing the lateral width.

[0004]

Means for Solving the Problems In order to solve the above problems, the present invention has the following configuration. In other words, planting machine according to the present invention, the seedling mounting table 80 and the planting device 160 for horizontally reciprocating along the support rail 83 is provided in parallel plural rows fraction, the outermost of the plurality number Article fraction seedlings loading table 80 End strip part 80-
1, 80-8 and the outermost end strip portion 83b of the support rail 83;
In the rice transplanter configured to be foldable inside the machine body , the outermost end strip portions 80-1 and 80-8 of the seedling mounting table 80 are the seedlings.
A structure to be folded above the central portion 80-2 to 7 of the mounting table 80
And the center fixed portion 83a of the support rail 83 and the outermost
The end strip portion 83b is connected via a core 150, and the core 1
The fixed portion side end of the fixed portion 50 is fixed to the fixed portion 8 by a support shaft 151.
3a so as to be rotatable with respect to the outermost end strip portion 83b.
The pin 152 provided on the support shaft 151 is rotatably provided.
When loosely fitted into the elongated hole 153a of the rotating plate 153
Between the fixed portion 83a and the outermost end portion 83b.
Are provided with springs 154 that attract each other .

[0005]

According to the present invention, the outermost end portion 80-
1,80-8 is on the central portion 80-2 to 7 of the seedling mounting table 80
The central part of the seedling table 80
Outermost end portion by effectively utilizing the space above 80-2 to 7
83b has a rational structure that folds inside the fuselage to increase the left and right width.
A rice transplanter that can be reduced can be obtained. In addition, support
The center fixed portion 83a and the outermost end strip portion 83b of the
Are connected via a core 150, and the fixed portion side of the core 150 is
The end is pivoted with respect to the fixed portion 83a by the support shaft 151.
Pin 15 freely attached and provided on outermost end strip portion 83b
Rotating plate 1 in which 2 is rotatably provided on the support shaft 151
53 and the fixed portion 83a
Between the outermost end portion 83b and the outermost end portion 83b.
Since the pulling 154 is provided, the support
In the state in which the screw 83 is extended, the core 150
The positions of the fixed portion 83a and the outermost end portion 83b are aligned.
The two parts 83a and 83b are located on a straight line,
The strip portion 83b is drawn inward by the spring 154.
Have been Then, from this state, the spring 15
Pull out the outermost end strip portion 83b outward against the force of 4.
And the outermost end portion 83b is rotated about the support shaft 151.
And fold the outermost end strip portion 83b against the fixed portion 83a.
Collapsing. Even in this state, the outermost end strip portion 83b is
Ring 154 pulls inward to secure stable
It is in the delivery state.

[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, a fertilizer application device 5 is mounted as needed.

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,.
Are fixed to a lateral frame 82 provided in the left and right direction at the lower part on the back side of the rear surface, and the left and right support rails are provided on the planted transmission frames 62,. 83 and slidably engage left and right with the connecting pipe 6.
The seedling support frame 85 is provided by fixing the base to the seedling support frames 63, 63, and the support frame 87 having the rollers 86, 86 attached to the upper end of the seedling support frame fixed to the upper rear surface of the seedling mounting surface 80a,. In the U-shaped recess. Both ends of the horizontal moving rod 78 are connected to the lower horizontal frame 8 via connecting members 87,87.
2 is attached to the attachment members 88, 88 which are fixed to the seedling mounting table 8 when the laterally moving rod 78 reciprocates left and right.
0 also reciprocates left and right along the support rail 83. At the upper end of each seedling mounting surface 80a, a guide frame 89,... For guiding the seedlings to the seedling mounting surface at the time of replenishing the seedlings is rotatably mounted on the seedling mounting surface side.

The support rail 83 is provided with an engaging sliding member 8.
, And the rectangular section of the cross section with which the
.. Are formed integrally with a portion having an L-shaped cross section that receives the lower end surface of the seedling on the top, and a seedling dividing port cut out in a U-shape at eight locations corresponding to each seedling mounting surface 80a,. 90, ...
Are formed. 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,. Seedling stand 8
When separating the 0 seedlings, the planting tool 162 described later passes through the seedling dividing port 90. In addition, rubber seedling dividing guides 91, 91 are attached to the left and right sides of the edge of the seedling dividing port 90, and have a shape following the tip locus of the planting tool 162 in front of the edge of the seedling dividing port 90. The formed guide member 92 made of a metal wire is attached.

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. 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 with the seedling presser 110, the seedling presser 110 is fixed to the seedling presser operating state. Becomes inactive.

Furthermore, at the lower end of each seedling mounting surface 80a,... Are horizontally provided with resistance bars 119,... Which receive the leaves of the seedling positioned at the lowest stage and lift the leaves so that the leaves do not hang down. Have been.

By the way, the seedling mounting table 80 (-1)
-8), the six central portions 80-2 to 7 are provided integrally, but the outermost end portions 80-1 and 80-8 are provided separately from the outermost end portions 80-1 and 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-
A concave column receiver 122 is fixed to the top of the columns 111-3 and 111-7 (-3 and -7 each represent a partition wall number) provided on the outermost partition wall 7, and the outermost partition wall is in a folded state. Supports 111- provided on 81-3 and 80-7
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 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 can be inverted at the same position. In order to avoid interference with the L-shaped portion , the outermost end strip portions 80-1 and 80-8 are turned upside down while being pushed up by the gap S along the inclination of the seedling mounting table.

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 a portion 81a inside partition walls 81-2 and 81-8 which partition the outermost end strip and the innermost strip. , The outermost end portion 80-1,
When 80-8 is unfolded, a portion 81 outside the partition wall is formed.
The switch is turned on by being pushed by b. The ON / OFF switching operation of the deployment switch SW1 is strictly set, and is ON only when the deployment is surely performed, and OFF when the deployment is uncertain.

SW2 is a folding switch. The folding switch is composed of the outermost pillars 111-1 and 111-1.
When the outermost end portions 80-1 and 80-8 of the seedling mounting table are folded, the support pillar 111- is mounted.
The switch is turned on by being pressed by a pressing piece 139 attached to the top of 3,111-7. The ON / OFF switching operation of the folding switch SW2 is also strictly set, and is ON only when the folding is surely performed, and OFF when the folding is uncertain.

The display panel 43 is provided with a monitor lamp L1 as non-expansion notifying means and a monitor lamp L2 as non-unfolding notifying means which are turned on when the respective switches are turned off in conjunction with the above-mentioned expanding switch SW1 and folding switch SW2. Is provided. For this reason,
The operator can check the state of the seedling mounting table 80 while sitting in the cockpit 42. Further, both switches SW1, S
An alarm buzzer BZ that emits an alarm sound when both W2 are off is provided at an appropriate position. Both switches SW1,
The fact that both SW2s are off means that the seedling mounting table 80
Is abnormal in the unfolded state or the folded state, and in such a case, the operator is notified of the abnormality by the alarm buzzer BZ.

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 seedling vertical feeding devices 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 at the outer end 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
Even if the two clutch bodies 140 and 141 are out of phase, they can be connected without difficulty, and the clutches quickly become engaged.

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 central fixed portion 8 at a position near the outside of the seedling dividing openings 90, 90 on the outermost end.
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 material 150, and the two portions 83a and 83b are located on a straight line. At this time, the bent portion 83b is
4, the pin 152 is engaged with the inner end of the elongated hole 153. From this state, the bent portion 83b is pulled slightly outward against the force of the spring 154, and the bent portion 83b is rotated about the support shaft 151 forward along the inclination of the seedling mounting table 80. The bent portion 83b is perpendicular to the fixed portion 83a. This state is stable because the bent portion 83b is pulled inward by the spring 154.

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 is provided with 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-
A configuration is adopted in which 1,160-8 does not protrude left and right more than necessary. That is, the planting transmission frames 62-1 and 62-4 on the outer side include the front part 62 a and the rear part 62.
The rear portion 62b is rotatably fitted around the front portion 62a in a plane perpendicular to the traveling direction, and the two are combined and integrated by a set knob 164. In use,
A pair of left and right planting devices 160-1, 160-2 (or 1
60-7, 160-8) are arranged horizontally so that the rear portion 62b of the planting transmission frame is set. When not in use, as shown in FIG. 15, each planting tool 162 faces inward. Then, the rear portion 62b of the planting transmission frame is rotated and set so that the planting devices 160-1 and 160-2 are vertically aligned, and the planting devices 160-1 and 160-2 are positioned outside the support rail 83. Do not protrude. By rotating the rear portion 62b of the planting transmission frame, the planting device transmission shaft 71 is prevented from rotating and the phases of the planting devices 162 and 162 are prevented from being shifted. It can be cut.

When the work is not performed, the outermost end streaking device 1
As shown in FIG. 16, the rear portions of the planting transmission frames 62-1 and 62-4 do not protrude the left and right of the seedling mounting table 80 and the support rail 83. You may comprise so that 62b can be attached / detached with the planting apparatus 160,160 attached. In the illustrated example, the rear portion 62b is fitted around the front portion 62a, and the two are combined and integrated by the set knob 164. The planting device transmission shaft 71 is configured so that the front part 71a and the rear part 71b can be separated by spline fitting.

A center float 170 and a pair of left and right side floats 171 and 171 are provided below the seedling planting machine 4.
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 a 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 includes a fertilizer hopper 1 for adding fertilizer.
90,..., A feeding device 191 for sequentially feeding the fertilizer in the fertilizer hopper 190 downward by rotation of a feeding roll (not shown), and a fertilizing hopper 192 provided facing the seedling planting groove in the field. ,.., And the flexible fertilizing hoses 193, which connect the feeders 191,. Among these, fertilizer hopper 19
, And the feeders 191,...
It is attached to a fertilizer application frame 195 laid horizontally on 5a. Fertilizer application frame 195 is hollow and blower 196
The warm air in the engine room is
95 to the lower end of the feeder 191 to facilitate the flow of fertilizer in the fertilizer hose,
The fertilizer is prevented from solidifying in the fertilizer hose. The blower 196 is connected to the alternator 35.

When using this rice transplanter, the following places are set to a working state during work. The outermost end portions 80-1 and 80-8 of the seedling mounting table 80 are deployed. Support rail 83
The bent portions 83b, 83b are straightened. The guard members 156 and 156 are turned laterally. The rear portion 62b of the outer planting transmission cases 62-1 and 62-4 is connected to a pair of planting devices 160-1 and 160-
2, 160-7 and 160-8 are mounted on the front part 62a so as to be horizontally aligned. In addition, the spare seedling mounting tables 180, 1
Push 80 forward.

When the left and right width of the body is reduced during non-operation, the above-mentioned parts are set to a reduced state. That is,
The outermost end portions 80-1 and 80-8 of the seedling mounting table 80 are folded. When the outermost end is folded, the guide frame 8
9 is hung downward as shown by the chain line in FIG. 1, so that the overall height is prevented from becoming too high. The bent portions 83b, 83b of the support rail 83 are bent forward by about 90 degrees along the side surface of the seedling mounting table 80. The guard members 156 and 156 are rotated upward. The rear portion 62b of the outer planting transmission cases 62-1, 62-4 is rotated 90 degrees in a predetermined direction, and the planting devices 160-1 and 160-
2, 160-7 and 160-8 are arranged vertically. Further, the spare seedling mounting tables 180, 180 are rotated to the cockpit side.

In the above setting operation, if the operation or running is performed without the unfolding and folding of the seedling mounting table 80, a serious accident may occur. That is, if the operation is performed in a state where the seedling mounting table 80 is not reliably unfolded, not only the seedlings are not planted, but also causes an accident such as damage to the movable part of the seedling planting machine 4. Become.
Also, if the machine is to be put into the warehouse in a state where the seedling table 80 is not securely folded, the outermost end 8
Accidents such as accidentally bringing 0-1, 80-8 into contact with the entrance of the warehouse are likely to occur.

However, the Honda planter 1 is provided with the expansion switch SW1 and the folding switch SW2,
By monitoring the monitor lamps L1 and L2, the state of the seedling table 80 detected by these two switches can be confirmed while the operator is sitting in the cockpit 42.
Further, when there is an abnormality in the seedling mounting table 80, the operator is notified of the abnormality by the alarm buzzer BZ, so that the above-described accident can be prevented beforehand.

As for the support rail 83, the bent portions 83b and 83b of the support rail cannot be bent unless the outermost end strip portions 80-1 and 80-8 are folded. By monitoring the state of 80, the state of the support rail 83 can also be known. When the outer planting transmission cases 62-1 and 62-4 are not properly mounted, the planting transmission cases are not transmitted to the planting devices 160 attached to the planting transmission cases. Even if work is carried out with the planting transmission case attached by mistake, no major accident will occur.

[0046]

As described above, in the rice transplanter according to the present invention, the outermost end portions 80-1 and 80-8 of the seedling mounting table 80 are provided.
Is folded above the central part 80-2 to 7 of the seedling mounting table 80.
The central portion 80-2 to 7 of the seedling mounting table 80.
The outermost end portion 83b is effectively used in the space above the
Field that can reduce the left and right width with a reasonable structure that folds inward
You can get a planting machine. Also, the center of the support rail 83
The fixing portion 83a and the outermost end portion 83b are
The end of the core member 150 on the fixed portion side is supported by the support shaft 1.
51 so as to be freely rotatable with respect to the fixed portion 83a.
The pin 152 provided on the outermost end strip portion 83b is
Elongated hole 1 of rotating plate 153 rotatably provided on 151
53a as well as the fixed portion 83a and the outermost end strip portion.
Spring 15 which attracts each other between minute 83b
4 so that the support rail 83 can be extended when planting rice.
In this state, the core 150 secures the central fixed portion 83.
a and the position of the outermost end strip portion 83b are aligned, and both portions 83
a, 83b are located on a straight line, and the outermost end portion 83b is
It is drawn inward by a spring 154.
And from this state, against the force of the spring 154
The outermost end portion 83b is pulled out, and the support shaft 151 is pulled out.
The outermost end portion 83b is rotated about
The outermost end portion 83b is folded with respect to 83a. this
Even in the state, the outermost end strip portion 83b is
Therefore, it is pulled inward and becomes a stable storage state.
Therefore, a rice transplanter that can reduce the left and right width with a reasonable structure is obtained.
Can solve the problem.

[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;

7 is a view as viewed 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 strip 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 showing an end of a support rail in a bent state.

FIG. 15 is a view showing a state where the planting transmission frame on the outer side is rotated.

FIG. 16 is an explanatory view of an outer planting transmission frame of a different embodiment.

[Explanation of symbols]

BZ alarm buzzer L1 Monitor switch lamp for unfolding switch (non-deployment informing means) L2 Monitor lamp for folding switch (non-folding informing means) SW1 Deployment switch SW2 Folding switch 1 Rice transplanter 2 Traveling vehicle body 3 Elevating link device 4 Seedling working machine 60 Transmission case 80 Seedling table 83 Support rail 121 Rotating shaft 160 Planting device

Claims (1)

(57) [Claims] 1. A support rail 83 seedling mounting table 80 and the planting device 160 for horizontally reciprocating along a is provided in parallel plural rows minute, outermost strip portion of the plurality number Article fraction seedling mounting table 80 80- 1,
80-8 and the outermost end portion 83b of the support rail 83
In a rice transplanter that can be folded inside the body ,
The outermost end portions 80-1 and 80-8 of the seedling mounting table 80 are the seedling mounting tables.
A configuration that folds above the central portion 80-2 to 80 of 80
And the center fixed portion 83a of the support rail 83 and the outermost end strip.
The portion 83b is connected via a core 150, and the core 150
Is fixed to the fixed portion 83a by the support shaft 151.
To the outermost end strip 83b.
A rotation in which the locking pin 152 is rotatably provided on the support shaft 151.
The moving plate 153 is loosely fitted in the elongated hole 153a,
Between the fixed portion 83a and the outermost end portion 83b.
A rice transplanter, comprising a spring 154 for attracting water .