JPH10295128A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent an operating wire operating a clutch turning in/out transmission to seedling transplanting devices at right/left outer parts from being curved or twisted at the time of reducing the right/left widths of the machine body of the seedling transplanter whose right/left widths of the device body are reduced at the time of carrying or storing. SOLUTION: The seedling transplanter which is provided with a clutch for respectively turning in/out transmission to the plural seedling transplanting devices arranged right and left in parallel by the portion of the proper number of transplanting lines and whose seedling transplanting devices at the right/left outer parts can be moved inward at the time of not operating is provided with the clutch turning in-out transmission to the transplanting devices 160-1, 160-2, 160-9 and 160-10 at positions which are not moved at the time of moving the seedling transplanting devices at the right/left outer parts inward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanter capable of reducing the lateral width of a body during transportation or storage.

[0002]

2. Description of the Related Art Right and left outer ends of a seedling table are turned upside down and folded, and frames supporting the right and left outer seedling placement devices are bent upward to turn the seedling placement device inward. There is a multi-row planting rice transplanter, such as a 10-row plant, which can be moved to reduce the lateral width of the body during transportation or storage. In the rice transplanter, a clutch that turns on and off the transmission to each seedling planting device by the appropriate number of planting streaks (for example, every two streaks) (where it is turned off during work on the ridge) Therefore, the conventional multi-row planting rice transplanter, which can reduce the width of the left and right sides of the airframe, transmits the power to the seedling planting device on the left and right outer sides. The clutch to be disengaged was provided on the frame supporting the seedling planting device on the left and right outer portions.

[0003]

For this reason, when the seedling planting devices on the left and right outer portions are rotated, the clutch for turning on / off the transmission to the seedling planting device is also rotated to change the position. on the other hand,
Since the operating device for operating the clutch is provided on the fixed side (for example, provided on the traveling vehicle body), the wire connecting the clutch operating device and the clutch pin may be bent or twisted when the width of the body is reduced. Sometimes caused trouble.

[0004]

In order to solve the above problems, the present invention has the following arrangement. That is, the seedling transplanter according to the present invention is provided with a clutch for individually turning on and off the transmission to a plurality of seedling planting devices arranged in parallel on the left and right by an appropriate number of planting streaks. In the seedling transplanter where the seedling planting device of some parts can move inward when not working,
The clutch for turning on / off the transmission to the left and right outer seedling planting devices is provided at a position where the clutch does not move when the left and right outer planting devices are moved inward.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings will be described below. A rice transplanter 1, which is a kind of seedling transplanter, has a 10-row seedling planting section 4 mounted on the rear side of a riding traveling vehicle body 2 via a lifting link device 3 so as to be able to move up and down. The body of the fertilizer applicator 5 provided with a fertilizer discharge port is mounted on the rear part of the riding traveling vehicle body 2 and is configured as a 10-row riding fertilizer applying rice transplanter as a whole.

The traveling vehicle body 2 is a four-wheel drive vehicle, and front wheel final cases 13, 13 are provided on the left and right sides of a transmission case 10 arranged at the front of the body, and project outward from the front wheel final case. Front wheel 1 on front wheel axle
4, 14 are attached. Mission case 10
The front end of a main frame 15 is fixed to the rear surface of the rear frame. Left and right rear wheel gear cases 19 and 19 are rotatably supported by the rear end of the main frame. Wheel axles 20a, 20
The main rear wheels 20, 20 are attached to a. Further, auxiliary rear wheels 21 and 21 are connected to auxiliary rear wheel axles 21a, 21a, 22a and 22a connected to the outside of the rear wheel axles 20a and 20a.
1, 22, and 22 are respectively attached. The auxiliary rear wheel axles 21a, 21a, 22a, 22a
1, 22, 22, and 22 are configured to be slidable inward.

[0007] An engine 25 is mounted on the main frame 15, and a seat 31 is installed on an engine cover 30 that covers the upper side, the front side, and the left and right sides of the engine.
Further, a front upper portion of the center of the body is covered with a front cover 32, and a handle 33 for steering the front wheels 14, 14 is provided above the front cover.

The engine cover 30 and the front cover 3
The left and right sides of the vehicle 2 and the rear side of the engine cover 30 form a main step 40 serving as a path for a driver. The rear part of the engine cover of the main step is the main rear wheels 20, 20
And is high so as not to interfere. On both left and right sides of the main step 40, extended steps 41, 41 are provided at substantially the same level as the main step 40. The rear portions of the extension steps 41, 41 are also high so as not to interfere with the main rear wheels 20, 20, and the auxiliary rear wheels 21, 21, 22, 22. The extension steps 41, 41 are provided on the front step frame 4 provided to protrude laterally from the frame of the body.
2, 42 and the rear step frames 43, 43 are supported. Further, on the lower side of the outer ends of the extension steps 41, 41, side footrests 44, 44 used when getting on and off the extension step from the left and right sides of the body are provided with the front step frame 4.
Front footrests 45, 45 used when getting on and off the extension step from the front side of the fuselage are attached to 2, 42, respectively. The outer portions 41a, 41a of the extension steps 41, 41 are removable.

At the outer ends of the front step frames 42, 42, the drawing marker supporting members 46 are rotatable in a horizontal plane.
46 is attached, and drawing markers 47, 47 are provided at the tip of the support member. This line marker 4
Reference numeral 7 denotes a mounting rod 47a rotatably mounted on the support member 46, a wire drawing tool 47b rotatably mounted on the tip of the mounting rod, and a mounting rod connecting the support member 46 and the wire drawing tool 47b. A connecting rod 47c is provided in parallel with 47a, and the drawing rod 47a is turned over and raised by rotating the mounting rod 47a by a drawing marker actuating wire 47d pulled back in conjunction with the raising and lowering of the seedling placement section 4. It has become. Mounting rod 47a and connecting rod 47
Since c constitutes a parallel link mechanism, the drawing tool 47
b is such that the tip always faces down in both the falling state and the standing state. In the next stroke, the drawing marker 47 on the side through which the aircraft passes falls, and the tip of the drawing tool 47b of the drawing marker moves with the progress of the aircraft in a state of diving in the mud in the field. The left and right center positions are drawn on the topsoil surface.

On the left and right sides of the front portion of the traveling vehicle body 2, there are provided spare seedling mounts 48 on which spare spare seedlings are placed. The spare seedling mounting table 48 has a base supported by the previous step frame 42.
a are provided with a plurality of seedling placing frames 48b,..., and two seedling boxes are placed side by side on the seedling placing frames 48b,. I have. The seedling placing frame 48b has an inner portion 48bA and an outer portion 4b.
8bB is connected by a hinge 48c so that the outer part 48bB can be turned over the inner part 48bA during storage or the like.

The lifting link device 3 includes a main frame 15
An upper link 51 and a lower link 52 rotatably attached to a link base 50 fixed to the rear end of the
A vertical link 53 at the rear end of these vertical links.
Are connected. Then, a connecting shaft 5 fixed to the seedling planting portion side on a bearing portion projecting rearward from the lower end portion of the vertical link 53.
4 is rotatably inserted and connected, and the planting portion 4 is connected to a connecting shaft 54.
It is mounted so that it can be rolled around the center. When the lifting hydraulic cylinder 56 connected to the lower end of the swing arm 57 integrally provided on the base of the upper link 51 with the piston rod side pivotally supported on the base side fixed to the main frame 15 is extended and lowered, The link device 3 moves up and down, and the seedling planting section 4 moves up and down with a substantially constant posture. The switching of the hydraulic cylinder 56 is controlled by a hydraulic valve 58 provided on the traveling vehicle body 2. In addition, the seedling placement part 4 is rolled with the connecting shaft 54 as a fulcrum by a rolling hydraulic cylinder (not shown).

The seedling planting section 4 has a ten-row planting structure, a transmission case 60 also serving as a frame, and a seedling mounting table 8 on which seedlings are placed.
0, a number of seedling planting apparatuses 160,... For planting the seedlings on the seedling mounting table in the field, floats 170,.

The transmission case 60 is mounted on the rear surface of the seedling table driving case 61 located at the center in the left and right direction, and is mounted on the seedling transmission case 62-3.
And the inner ends of the first connection pipes 63, 63 are fixed to the left and right side surfaces of the seedling table driving case 61, and the planting transmission case is fixed to the outer ends of the first connection pipes 63, 63. 6
2-2 and 62-4 are fixed to the front inner surfaces thereof, and the second connecting pipe 6 is attached to the front outer surfaces of the planting transmission cases 62-2 and 62-4.
4 and 64, and the second connecting pipe 64,
The front inner surfaces of the planting transmission cases 62-1 and 62-5 are fixed to the outer end of the plant 64. The seedling table 80 is supported on the upper side of the transmission case 60, and each planted transmission case 62-
1-62-5, a planting drive shaft 65 supported on the rear part,
The seedling planting devices 160-1 to 160-10 are provided at the left and right protruding portions.
Is attached.

The power for driving the seedling planting section transmitted from the transmission case 10 of the traveling vehicle body 2 is transmitted to the input section of the transmission case 60. The rotation power is the seedling table drive case 6
1 through the lower portion of the transmission case 62-2 to 62-4
Is transmitted to the center planting main shaft 69 supported inside the first connecting pipes 63 and 63, and further, can be transmitted to and from the center planting main shaft 69 by the ridge clutches 71-2 to 71-4. Are transmitted to the planting drive shafts 65,... Of the planting transmission cases 62-2 to 62-4 via the chains 72,. In addition, the rotational power of the center planting main shaft 69 is supplied to the second connecting pipe 6 by the ridge clutches 71-1 and 71-5.
4 and 64 and to the side planting spindles 70, 70 supported on the front of the planting transmission cases 62-1 and 62-5 so as to be able to be inserted into and disengaged from the side.
From the plant via the chains 72, 72
1, 62-5 are transmitted to the planting drive shafts 65, 65.

The rotation of the center planting spindle 69 is transmitted to a seedling table driving mechanism in the seedling table driving case 61. From the left and right side surfaces of the upper part of the seedling table driving case 61, a seedling vertical feed driving shaft 73 rotating in a fixed direction and a laterally moving rod 74 for reciprocating left and right moving the seedling table left and right project laterally. I have.

Since each of the ridge clutches 71,... Is individually turned on and off, the planting lines PL1 to PL10 can be switched between planting and non-planting in units of two.
The ridge clutch levers 75-1 and 75-5 for operating the outer two ridge clutches 71-1, 71-5 are provided on the traveling vehicle body 2, and the central six-row ridge clutches 71-2 to 71-4 are provided. The ridge clutch levers 75-2 to 75-4 to be operated are provided in the seedling planting section 4, and the respective operation levers are connected to clutch pins 76,... Of the ridge clutch by operation wires 77,.

The seedling mounting table 80 is provided so as to be inclined so that the front side is higher, and the upper surface thereof is a seedling mounting surface divided by the number of planting strips by partition walls 81,. The seedling mounting table 80 is supported on the back side of the seedling mounting surface so as to be movable left and right. The support structure is such that engaging sliding contact members 84,... Are fixed to a horizontal frame 82 provided in the left-right direction below the rear side of the seedling mounting surface, and the engaging sliding contact members are mounted on the planted transmission cases 62,. Roller slidably engaged left and right with left and right long support rails 83 provided on the seedling mounting table support frame 85 whose base is supported by the planting transmission cases 62-2 and 62-4. 86,
Are engaged with an upper rail 87 having a U-shaped cross section in the left-right direction fixed to the upper rear surface of the seedling mounting surface. The lateral movement rod 74
Are connected to mounting members 88, 88 fixed to the horizontal frame 82 via connecting members 74a, 74a, and the laterally moving rod 74 reciprocates left and right, so that the seedling mounting table 80 moves along the support rail 83. To reciprocate left and right. In addition,
At the upper end of each seedling mounting surface, an extended seedling mounting portion 89,... Is rotatably attached to the seedling mounting surface side.

The support rail 83 is provided with an engaging sliding member 8.
A portion 83a having a rectangular cross section with which the... Engage, and a portion 83b having an L-shaped cross section receiving the lower end surface of the seedling on the seedling mounting surface.
Are integrally molded, and one
The seedling division openings 90,... Cut out in a U-shape at 0 locations are formed. As the seedling mounting table 80 reciprocates left and right,
The seedlings located at the lower end of the seedling mounting surface are sequentially supplied to the seedling division ports 90,. At the time of separating the seedlings of the seedling mounting table 80, the planting tool 162 described below is attached to the seedling dividing port 9
Pass through zero. 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 are formed in front of the edge of the seedling dividing port 90 in a shape following the tip trace of the planting tool 162. A 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,... Is provided for each strip, and all the seedlings in one horizontal row located at the lower end of the seedling mounting surface are transplanted. Then, the seedlings on the seedling mounting surface are transferred downward. In the seedling vertical feeding device 94, an endless seedling feeding belt 95 having a small protrusion formed on the outer periphery is stretched around a driving roller 96 and a 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 73, and rollers 101,. When the seedling mounting table 80 reaches the end of the left-right stroke, the drive arm 98 moves the roller 10.
1, the roller drive shaft 96a is rotated by a predetermined angle, whereby the seedling feed belt 95 is operated by a predetermined amount. When the roller 101 separates from the driving arm 98, the driving arm 98 returns to the posture before driving due to the tension of the spring 103. The rotation shaft 97 a of the driven roller 97 is moved by a spring 104 to a seedling feed belt 95.
Is pulled in the direction of stretching. Further, an operation stop member 107 is provided which is interlocked with an operating tool 71a for operating the above-described streak-planting clutch 71 via a wire 106. The operation stopping member 107 is engaged with the driven roller 97, so that the seedling feed belt 95 does not feed.

At the lower part of each seedling mounting surface, a seedling holding tool 110 for preventing the seedlings from floating is provided. The seedling presser 110 includes a support member 11 attached to supports 111 protruding from partition walls 81 on both sides.
It is supported by 1a and 111a, so that a seedling holding action state indicated by a solid line in FIG. 11 and a seedling holding non-operation state indicated by a chain line in FIG. 11 can be selected. 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 feeding 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 and 115a are bent toward the lower end of the seedling mounting surface,
Locking member 1 fixed to upper surfaces of lower ends of partition walls 81, 81
The engaging holes 118a, 118a provided in the 18, 18 are adapted to be engaged. When the left and right end portions 115a, 115a of the horizontal bar 115 are engaged with the engagement holes 118a, 118a, the seedling presser 110 is fixed in the seedling presser action state. Horizontal bar 11
When the seedling presser 110 is rotated upward two times, the seedling presser 110 is in a non-working state.

Further, at the lower end of each seedling mounting surface, a resistance bar 119,... Which receives the leaves of the seedling located at the lowest level and lifts the leaves so that the leaves do not hang down, is also provided horizontally. .

The seedling planting device 160 includes the planting drive shaft 65.
And a pair of planting tools 162 and 162 attached to both ends of the rotating case. By the transmission mechanism in the rotating case 161,
62 and 162 rotate in a direction opposite to the rotation direction of the rotating case 161, and the tip of the fork-shaped seedling separating tool fixed to the planting tool operates so as to draw a vertically-deformed 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,.

As the floats, the center floats 170C and 170C for leveling the fourth and fifth seedling planting lines PL4 and PL5 (or PL7 and PL6) from the outside, and the third seedling planting line PL3 ( Or the middle floats 170M, 170M for leveling the first and second seedlings PL1, PL2 (or PL9, PL2) from the outside.
10) Side floats 170S, 170S for leveling. Float support shaft 171 rotatably supported on the lower side of planting transmission case 62.
A pair of left and right float support arms 172, 172,
Are integrally provided, and mounting legs 174, 174,... Fixed to the upper surface of the float via left and right pivot shafts 173, are rotatably connected to the rear ends of the pair of left and right float support arms. The floats 170 are supported so as to be able to swing up and down. By rotating the float support shaft 171 by operating a planting depth adjusting lever (not shown), the vertical position of each of the floats 170 is changed, and the planting depth of the seedling is adjusted.

A pair of left and right center floats 170C, 1
70 </ b> C is connected by a connecting plate 175 so as to swing up and down integrally, and the angle of the both floats with respect to the horizontal plane (the angle facing the float) is detected by the float angle sensor 177 via the ground height detection mechanism 176. . Then, the hydraulic valve 58 is driven based on the detection result. For example, where the topsoil surface is high, the fronts of the center floats 170C, 170C are pushed up, and the float facing angle is detected to be small. Then, the hydraulic cylinder 5
An output command is issued to the hydraulic valve 58 so as to cause the seedling 6 to protrude, and the seedling placement part 4 is raised. Where the topsoil surface is low, the center floats 170C, 17
Since the front portion of 0C is lowered, the opposite angle is detected to be large.
Then, an output command is issued to the hydraulic valve 58 so as to contract the hydraulic cylinder 56, and the seedling placement section 4 is lowered. In this manner, the seedling planting section 4 depends on the height of the topsoil of the field.
By controlling the height above the ground, the planting depth of the seedlings is kept constant.

Further, the side floats 170S, 170S
Are provided with side float sensors 178, 178 for detecting the amount of swing of the float, and by controlling the seedling planting section so as to make the detection values of both side float sensors equal to each other, Make the planting depth equal.

Further, the seedling planting section 4 of the rice transplanter 1 is provided with various components for reducing the lateral width of the machine body during transportation and storage. First, the configuration of the folded portion of the seedling mounting table 80 will be described.

A partition wall 81-3 for separating the second and third strips from the outside includes an inner portion 81a and an outer portion 81.
b, and the inner part 81a is
0-3 to 0-8, and the outer part 81b is
It is integrally formed with the strip portion 80-1.2 (or 80-9.10). The partition wall 81-3 is formed higher than the other partition walls with respect to the seedling mounting surface. Then, the cylindrical portions 120a formed at the upper end portions of the two portions 81a, 81b,
120b are provided with one rotating shaft 121 inserted therethrough.
2, 80-9.10 is turned inward, and the portion is folded so as to be superimposed on the inner strip portion 80-3.4, 80-7.8. Posts 11 provided on the fourth and fifth partition walls 81-4 and 81-5 from the outside
Are fixed to the tops of the first, second and third partition walls 81 at the outer two portions in the folded state.
-1, 81-2 are engaged with the support posts 122,.

With respect to 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 83b of the support rail 83 is at an acute angle in a side view, the outer two-step portion 80-1.2 (or 80-9.10) of the seedling mounting table is inverted at the same position. L-shaped part 83a
This is to reverse the outer two-section 80-1.2 (or 80-9.10) in a state of being pushed up by the gap S along the inclination of the seedling mounting table to avoid interference with the seedling mounting table.

In FIG. 16, reference numeral 82 denotes the horizontal frame, which is a boundary between the central portion 80-3 to 80-8 of the seedling mounting table 80 and the outer two-line portion 80-1.2 (or 80-9.10). In the vicinity of the portion, a central portion 82a and two outer portions 82b, 82b are separated. The attachment members 88, 88 are fixed to both left and right end portions of the central portion side 82a.
Attachment members 88, 88 are provided at the inner ends of the ridge portions 82b, 82b.
The fixing members 124 and 124 are fixed to face each other. A round hole 125 penetrating left and right is formed in the fixing member 124, and a screw hole 126 is formed in the mounting member 88 on an extension of the round hole 125. The fixing rod 127 having a threaded tip is inserted into the round hole 1 of the fixing member 124 from outside.
25, and the tip screw portion is screwed into the screw hole 126 of the mounting member 88, thereby forming the outer two-line portion 80-1.
Fix 2 (or 80-9.10) to the central portion 80-3 to 80-8. The small-diameter portion 127a
When the fixing rod 127 is pulled out from the screw hole 126 when folding the outer two portions, the tip of the knock pin 128 is engaged 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. 12 in the figure
Reference numeral 9 denotes a spring for urging the knock pin 128 toward the fixed rod.

In FIG. 17, reference numeral 131 denotes a horizontal pipe provided on the upper part of the rear surface of the seedling mounting table. −
9 ・ 10) In the vicinity of the boundary, the central portion 131a and the outer 2
It is separated to the strip side 131b. A male screw member 132 is fitted on the inner end side of the hollow portion on the central portion side 131a. Fixing rod 13 having a screw hole 133 formed at the tip
4 into the horizontal pipe 131 from the outside, and
33 is screwed into the male screw member 132, thereby fixing the outer two-row portion 80-1.2 (or 80-9.10) to the center portions 80-3 to 80-8. The drop-out prevention mechanism of the fixing rod 134 is the same as that of the fixing rod 127, and the knock pin 137 urged by the spring 136 is fixed to the fixing rod 13.
4 is engaged with the small diameter portion 134a.

When the outer two rows of the seedling table are unfolded, the longitudinally feeding apparatus 94 of the outer two rows and the vertical feeding apparatus 94 of the central part are driven and connected (FIG. 13).
reference). That is, the roller drive shaft 96a-3 of the seedling vertical feeding device 94-3 at the center portion has a drive arm 9 at its inner end.
8 is 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 outer two roller drive shafts 96a-1.2 is engaged with the drive clutch body 140. The driven clutch body 141 is fitted to the roller drive shafts 96a-1.2 so as to rotate integrally therewith, is slidable in the axial direction, and is urged toward the shaft end by a spring 142. Therefore, when the two clutch members 140 and 141 are connected, the driven clutch member 141 can escape even if the two clutch claws abut each other, so that even if the phases of the two clutch members 140 and 141 do not match. It can be easily connected and quickly becomes engaged.

The seedling table support frame 85 is composed of a vertical frame 8 having a base fixed to the planting transmission cases 62-2 and 62-4.
The horizontal frame 85b is provided horizontally on the upper part of 5a, 85a,
Rotating frames 85c, 85c are provided at the left and right ends of the horizontal frame.
Are rotatably provided, and the vertical frames 85a, 85a
Rollers 86, 86 for supporting the central portions 80-3 to 8 of the seedling mounting table are attached to the upper end of the seedling mounting table.
Rollers 86, 8 for supporting 0-1,2,80-9,10
6 is attached.

Roller 8 for supporting two outer portions of the seedling table
Reference numeral 6 denotes a direction in which the roller shaft 86a is axially slidably fitted in a roller shaft hole 85c 'of the rotating frame 85c, and is separated from the rotating frame 85c by a spring 86b loosely fitted on the roller shaft 86a. And is stopped by a split pin 86c inserted through the roller shaft 86a. A finger hook 86d is fixed to an end of the roller shaft 86a. When a finger is hung on the finger hook 86d and the roller shaft 86a is pulled down, the roller 86 comes off from the U-shaped concave portion of the upper rail 87.

The connecting portion between the horizontal frame 85b and the rotating frame 85c has a cylindrical portion 85e on the rotating frame 85c rotatably and axially slidably fitted on a shaft 85d on the horizontal frame 85b. . A corrugated cam 85f is formed integrally with the cylindrical portion 85e. The cylindrical portion 85e is urged upward by a spring 85h so that a pin 85g inserted perpendicularly to the shaft 85d contacts the cam 85f. I have. Normally, the pin 85g is engaged with the concave portion of the cam 85f,
The rotating frame 85c is stabilized in a state in which the rotating frame 85c faces right and left. Rotating frame 85 than its stable state
A stopper 85i for preventing c from rotating toward the seedling mounting table is fixed to the cam 85f.

Further, the intermediate portion of the wire 106 for stopping the operation of the seedling feed belt at the outer two portions is connected to the rotating frame 85c.
Is fixed in place. For this reason, when the outer two sections of the seedling table are folded in a state where the rollers 86 supporting the outer two sections of the seedling table are disengaged from the U-shaped concave portions of the upper rail 87, the rollers 86 are pulled by the wire 106 and rotated. The frame 85c rotates backward. At this time, since the pin 85g slides along the wavy cam 85f, the turning of the turning frame 85c is performed smoothly. In this manner, by rotating the rotating frame 85c backward in conjunction with the folding operation of the seedling mounting table, the number of steps for reducing the lateral width of the machine can be reduced.

The support rail 83 is divided into a fixed portion 83A having a central six-row seedling dividing port and detachable portions 83B and 83B having two outer-row seedling dividing ports, respectively. The two parts 83A and 83B are connected by inserting the connection pin 151 on the removal part side into the pin hole 150 on the fixed part side, and further the stopper pin 152 on the fixed part side.
The hooks 153 on the side of the detached portion are hooked, and the hooks are pulled outward by the lever 154 so that the two portions 83A and 83B are brought into close contact with each other. When the lever 154 is rotated inward, the stopper pin 152 and the hook 153
Is disengaged, and the head of the hook 153 pushes the plate 155 of the fixed portion inward, whereby the removal portion 83B is pushed outward by the reaction. For this reason, the connection pin 151 comes out of the pin hole 150 a little, and the subsequent removal work is easy.

Next, the structure of the bent portion of the transmission case 60 will be described. The second connecting pipe 64 includes an inner pipe 64a on the side of the planting transmission case 62-2 (or 62-4) and an outer pipe 64b on the side of the planting transmission case 62-1 (or 72-5), At the upper position of the joint between the two pipes, the front and rear connection plates 180, 181 fixed to the outer end of the inner pipe 64a and the inner end of the outer pipe 64b are rotatable by the pivot shaft 182 in the front-rear direction. Being pivoted. The joint between the two pipes is a tapered convex portion 183 on the inner pipe 64a side and a tapered concave portion 18 on the outer pipe 64b side.
4 is fitted. A pair of left and right adjustment bolts 185 and 185, which are screwed to the inner pipe 64a with lock nuts 185a and 185a, are provided below the joints. The heads of the adjustment bolts lower the inner end surface of the outer pipe 64b. is recieving. By changing the amount of screwing of the adjusting bolts 185, 185, the inclination of the outer pipe 64b with respect to the inner pipe 64a in the left, right, up and down directions can be adjusted.

Since a space 186 separating the inner pipe 64a and the outer pipe 64b is formed around the joint, it is difficult for mud and the like to accumulate around the joint, and as described above, the inner pipe 64a and the outer pipe 64b Are joined at the tapered joint surface, so that even if mud or the like adheres to the joint, it is likely to be discharged to the outside.

When the second connecting pipe 64 is in a straight state, the inner pipe 64a has a base fixed to a fixed handle 187 rotatably supported on the left and right axes, and the outer pipe 64b has a lock nut. 18
The inner and outer pipes 64a, 64b are fixed so as not to be separated by the contact of the head of the fixing bolt 189 screwed at 9a. At this time, the fixed handle 187 is engaged with the engaging recess 190a of the locking arm 190, and is locked so that the fixed handle 187 does not rotate.

The locking arm 190 includes a locking arm rotating shaft 1.
91 and is rotatably mounted on the torque spring 19.
2 urges the fixed handle 187 toward the side to be engaged. For this reason, when the fixed handle 187 is rotated upward to the fixed position, the lower end inclined surface 19 of the locking arm is required.
0b is pushed by the fixed handle 187 and the locking arm 190 is pressed.
When the fixed handle 187 is turned to the fixed position, the locking arm 190 is turned inward by the action of the torque spring 192 so that the engaging recess 190a is engaged with the fixed handle 187. Then, the inner pipe 64a and the outer pipe 64b are automatically fixed so as to be joined to each other.

From the above state, the locking arm 190 is manually rotated outward to rotate the engagement recess 190a and the fixed handle 187.
Is disengaged and the fixed handle 187 is rotated downward, the fixing of the second connection pipe 64 is released. In this state, when the outer pipe 64b is bent upward by 90 degrees with respect to the inner pipe 64a, the tip of the lock pin 193 provided in the outer pipe 64b fits into the lock pin hole 180a formed in the connection plate 180. The second connection pipe 64 is fixed in that position.

The side planting spindle 70 is connected to the second connecting pipe 6.
4 is divided into an inner portion 70a and an outer portion 70b at the position of the bent portion, and when the inner pipe 64a and the outer pipe 64b are joined together, the pawl clutch 194 uses the two portions 70a, 70b.
When the second connecting pipe 64 is bent and the second connecting pipe 64 is bent, the pawl clutch 194 is disengaged and the outer portion 70b is connected to the outer pipe 64.
b. Claw clutch 194
Are the nail 194a on the inner side 70a side and the nail 1 on the outer side 70b side
94b is engaged at only one place, so that when the inner part 70a and the outer part 70b are connected, the pawl clutch 19
4 wrong, the outer two seedling planting device 160-
1,160-2 (or 160-9, 160-10) is prevented from being out of phase.

When the outer pipe 64b of the second connecting pipe is bent upward by about 90 degrees, the outermost planting transmission case 62-1 (or 62-5) as shown by a chain line in FIG.
And two outer seedling planting devices 16 attached thereto
0-1, 160-2 (or 160-9, 160-10)
Is rotated upward, and the left and right width of this portion is reduced.

Next, the side floats 170S, 170
The structure of the mounting portion of S will be described. As described above, the float mounting legs 174, 174 are provided at the rear ends of the pair of left and right float support arms 172, 172 via the pivot shafts 173, 173.
174 is rotatably connected. The rear end of the parallel link 195 provided above one of the left and right float support arms 172 is connected to the rear end of the float support arm 172 by a connection link 196, and the mounting stay 197 integrated with the connection link 196 is connected to the side by the side. A float sensor 178 is attached. The detection arm 178a of the side float sensor is connected to a detection stay 198 integrated with the mounting leg 174 via a detection link 198a. Thus, when the side float 190S swings up and down, the swing amount is detected by the side float sensor 178. Float support arm 172, parallel link 19
5 and the connecting link 196 constitute a parallel link mechanism, so that the relative position between the side float sensor 178 and the side float 170S does not change even if the planting depth is changed by rotating the float support arm 172 up and down. Therefore, the swing amount of the side float can always be accurately detected.

The mounting feet 174 of the side float 170S
174 are not directly attached to the float, but are integrally attached to mounting members 199, 199 fixed to the upper surface of the float with bolts B,... And nuts N,.
Therefore, by removing the bolts B,... And the nuts N,..., The attachment members 199, 199 are kept while the detection unit such as the side float sensor 178 remains on the planting transmission case 162 side.
The entire side float 170S can be removed from the mounting legs 174, 174.

The float support shaft 171 is separated into a center portion 171a for supporting the center float 170C and the mid float 170M, and outer portions 171b and 171b for supporting the side float 170S.
Each part has two universal joints 171
c and 171c so as to be bendable.

The fertilizer applicator 5 is provided to face a fertilizer hopper 200,... For storing fertilizer, a feeder 201,. , And the feeder 201,
, And the fertilizer application guides 202,... Are connected to the fertilizer guides 202, and the fertilizers fed out of the feeders 201,. Fertilizer application guide 2
02, ... and fall into the fertilizing grooves formed on the topsoil surface by the groove producing tools 205, .... The fertilizer hopper includes a central fertilizer hopper 200A for storing fertilizer for the central six rows and left and right fertilizer hoppers 200B and 200B for storing two outer fertilizers.
0B and 200B can be rotated to the front side.

The rice transplanter 1 is configured as described above, and the width of the right and left sides of the body is reduced during transportation and storage as follows (FIG. 1).
9, FIG. 20). (1) Rotate the left and right fertilizer hoppers 200B, 200B forward. (2) The outer portions 48bB,... Of the seedling placing frames 48b,. (3) Outer portions 41a, 41 of extension steps 41, 41
a together with the side footrests 44,44. (4) The drawing markers 47, 47 are rotated backward. (5) Slide the auxiliary wheels 21, 21, 22, 22 inward. (6) Two outer portions 80-1.2, 80- of the seedling mounting table 80
Flip 9 · 10 upward. Along with this, the rotating frames 85c, 85c of the seedling mounting table support frame 85 are rotated backward. (7) Remove the removal parts 83B, 83B of the support rail 83. (8) Remove the side floats 170S, 170S.
In some cases, it is not necessary to remove the side floats 170S, 170S. (9) The second connection pipe 64 of the transmission case 60 is bent upward by about 90 degrees at the intermediate portion, and the outermost planted transmission case 62 is bent.
-1, 62-5 and two outer seedling planting devices 160-1, 160-2, 160-9, 16 attached thereto.
Rotate 0-10 upward. In conjunction with this, the outer portions 171b, 171b of the float support shaft 171 are also bent upward.

[0049]

As is apparent from the above description, the seedling transplanter according to the present invention can transmit power to the seedling transplanting device even when the seedling transplanting devices located on the left and right outer portions are moved inward. Entering
Since the clutch to be disengaged does not move, the operation wire for operating the clutch does not bend or twist, thereby preventing trouble from occurring.

[Brief description of the drawings]

FIG. 1 is a side view of a rice transplanter in a working state.

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

FIG. 3 is a plan view in which a part of a seedling plant is omitted.

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

FIG. 5 is a front view of a drawing marker.

FIG. 6 is a rear sectional view of a bent portion of the transmission case.

FIG. 7 is a sectional view taken along line S1-S1 in FIG.

FIG. 8 is a sectional view taken along line S2-S2 in FIG.

FIG. 9 is a side view of a mounting portion of the side float.

FIG. 10 is a rear cross-sectional view of a side float mounting portion.

FIG. 11 is a side sectional view of a lower part of a seedling mounting table.

FIG. 12 is a view as viewed in the direction of the arrow A in FIG. 11;

13 is a view as viewed in the direction of the arrow B in FIG. 11;

FIG. 14 is a view showing a state in which two outer portions of the seedling mounting table are folded.

FIG. 15 is a sectional view of a lower part of a seedling mounting table.

FIG. 16 is a cross-sectional view of an upper connecting portion between a central portion and a two-outer portion of the seedling mounting table.

FIG. 17 is a cross-sectional view of a lower connecting portion between a center portion and an outer two-row portion of the seedling mounting table.

FIG. 18 is a side view showing a detachable portion at the right end of the support rail.

FIG. 19 is a side view of the rice transplanter in the left and right width reduced state.

FIG. 20 is a plan view of the rice transplanter in a left-right width reduced state.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 rice transplanter (seedling transplanter) 2 traveling vehicle body 3 elevating link device 4 seedling planting part 5 fertilizer device 60 transmission case 62 planting transmission case 64 second connecting frame 65 planting drive shaft 71 ridge clutch 75 ridge clutch lever 76 clutch Pin 77 Operating wire for ridge clutch 80 Seed table 160 Seedling plant 170 Float

Claims (1)

[Claims] A clutch is provided for individually turning on and off the transmission to a plurality of seedling planting devices arranged in parallel on the left and right sides by an appropriate number of planting lines, and the seedling planting devices on the left and right outer portions. Moves the clutch that turns on and off the transmission to the right and left outer seedling planting devices when moving the left and right outer seedling planting devices inward. A seedling transplanter, which is provided at a position where no seedling is placed.