JPH11113333A - Seedling transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter capable of decreasing a right and left width of a seedling-placing platform in a not-working time. SOLUTION: This seedling transplanter having a seedling-placing platform 80 divided to a plurality of seeding-placing parts 80-1 to 80-10 arranged in parallel for each ridge for transplanting seedlings, moving in the right and left direction while placing the seedlings on each of the seedling-placing parts 80-1 to 80-10, and supplying the seedlings to prescribed parts is constituted so that the right and left width of the seedling-placing platform 80 may be decreased by moving the seedling-placing parts 80-1 to 80-10 positioned at the right and left outside ends inside, and the numbers of the seedling-placing parts 80-1 to 80-10 moving inside at the left side end part may be differed by one from that of the right side end part.

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 seedling table during transportation or storage.

[0002]

2. Description of the Related Art There is a rice transplanter in which the left and right outer ends of a seedling mounting table are turned upside down and folded to reduce the lateral width of the seedling mounting table during transportation or storage. In a conventional rice transplanter of this type, the left and right ends of the seedling table are folded by the same width. For example, in the case of a 10-row rice transplanter, the left and right side portions of the seedling mounting table are folded by two lines at a time, and the folded seedling mounting table is made to have a left and right width of 6 lines.

[0003]

However, in the case of a 10-row rice transplanter in which the spacing between the seedlings is widely set and the left and right width of the original seedling mounting base is wide, the seedling mounting base is as described above. Even if the left and right sides of the stool were folded by two lines, the width of the sapling stand after folding was still too wide, making it difficult to transport unless a large truck was used. Therefore, an object of the present invention is to make it possible to further reduce the left and right width of the seedling mounting table as compared with the conventional one, and to provide a configuration of a seedling mounting table suitable for achieving the objective.

[0004]

That is, a seedling transplanter according to the present invention includes a seedling mounting table divided into a plurality of seedling mounting portions in a left-right parallel manner for each seedling mounting strip. The seedling rest is reciprocated in the left-right direction with the seedlings placed on the seedlings, and in the seedling transplanter that supplies the seedlings to a predetermined position, the seedling rests located at the left and right outer ends of the seedlings stand when not working are directed inward. The left and right widths of the seedling mounting table are configured to be reduced by moving the seedling mounting table, and the number of the seedling mounting sections moving inside the seedling mounting table is different by one between the left end side and the right end side.

For example, in the case of a 10-row rice transplanter, one of the left and right ends of the seedling table moves the seedling mounting portion for two rows inward, and the other end places three seedling mounting sections. By moving the part inward, the lateral width of the seedling mounting table can be reduced to a width equivalent to five rows. As it is, the center of gravity of the seedling table after folding is biased to one side to the left and right center of the machine, so move the entire seedling table to the left and right, and move the center of gravity of the seedling table after reducing the width to the left and right of the machine. Center it.

[0006]

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 fuselage, 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.

[0008] 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 fuselage is covered with a front cover 32, and a handle 33 for steering the front wheels 14, 14 is provided above the front cover 32.

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 35 serving as a path for a driver. The rear part of the engine cover of the main step 35 is the main rear wheel 20,
20 so as not to interfere. On both left and right sides of the main step 35, expansion steps 36, 36 are provided at substantially the same level as the main step 35. The rear portions of the extended steps 36, 36 are also the main rear wheels 20, 2
0 and the auxiliary rear wheels 21, 22, 22, 22 so as not to interfere with each other. Further, on the front and side of the left and right extension steps 36, side footrests 37, 37 used when getting on and off the extension steps are attached. The outer portions 36a, 36a of the expansion steps 36, 36 are removable.

[0010] Draw markers 4 are provided on both the left and right sides of the body.
0, 40 and side markers 41, 41 are provided (see FIGS. 3 to 9). The drawing markers 40, 40 are rotatably mounted around the horizontal axis at the distal ends of the marker supporting frames 42, 42 projecting laterally from the machine body, and the seedlings are planted through the drawing marker operating wires 43, 43. In conjunction with the raising and lowering of the attachment part 4, it rises and falls almost vertically alternately and vertically. When performing the operation while turning over the field, the drawing marker 40 on the side where the machine passes in the next stroke falls, and the drawing tool 40a of the falling drawing marker 40 is used.
Is moved in a state where the tip of the body is inserted into the mud of the field, and the position where the left and right centers of the body pass in the next stroke is drawn to the field scene. Disc-shaped mud shielding plates 44, 44 are attached near the mounting bases of the drawing tools 40a, 40a, and when the falling drawing marker 40 stands, the drawing tool 4 is attached.
The mud shielding plate 44 receives mud splashed by Oa so as not to hit the airframe. Further, the side markers 41, 41 are attached to the intermediate portions of the marker support frames 42, 42, and the indicator 41 provided at the distal end thereof.
Reference numerals a and 41a indicate the positions of the outermost seedling attachment strips.

The marker support frame 42 is provided with a first frame 42a fixed to the body horizontally and horizontally, and a second frame rotatably attached to a tip of the first frame with a vertical axis 42d as a fulcrum. 42b, and a third frame 42c rotatably attached to the tip of the second frame with a vertical shaft 42e as a fulcrum.
As described above, the drawing marker 40 is attached to the tip of the third frame 42c so as to be rotatable around the horizontal axis, and the side marker 41 is supported at the tip of the second frame 42b by the vertical axis 41b. And is rotatably mounted.

The rotation range of the second frame 42b is restricted by a stopper 42f fixed to the base of the frame, and the position where the tip is directed sideward (see FIGS. 4 and 6) and the position where the tip is directed rearward (see FIG. 8). , 9). First frame 42a and second frame 42
A tension spring 42g extending beyond the dead center is stretched between b in the middle part of the rotation range, and the second frame 42b is stabilized at both ends of the rotation range.

The left and right second frames 42b, 42b
And the steering pitman arm 45 are connected to the connecting rods 46, 4
When the body is turned, the second frame 42b on the outside of the turn is pulled by the connecting rod 46 and turns rearward. The connecting portion between the connecting rods 46, 46 and the second frames 42b, 42b is connected to the connecting pins 42 on the second frame side in the elongated holes 46a, 46a on the connecting rod side.
h and 42h are loosely fitted, so that the movement of the connecting rod 46 inside the turning is absorbed by the elongated hole 42h,
The connecting rod does not push the second frame 42b inside the turning.

The rotation range of the third frame 42c is set at a position where the tip is in the same direction as the second frame 42b (FIGS. 4, 5, 9).
) And a position where the tip is opposite to the second frame 42b (see FIG. 8), and is in a range of about 180 degrees.
It can be fixed to a plurality of positions including the above two positions.

When working in a field, as shown in FIGS. 3 and 4, the second frames 42b, 42b and the third frames 42c, 42c are extended to the side and
1, 41 are projected outward. In this state, as described above, the drawing marker 40 on the side through which the machine passes in the next stroke is in an overturned state, and the position where the left and right centers of the machine pass in the next stroke is drawn on the field scene. At this time, the drawing marker 40
The aircraft advances so that the left and right centers of the aircraft pass on the line drawn in the field scene. Further, the aircraft may be advanced so that the position of the outermost planting streak of the seedlings planted in the previous process matches the position of the side marker 41.

When the airframe is turned during the operation in the field, the second frame 42b on the outer side of the turn is rotated rearward in conjunction with the rotation of the pitman arm 45 as shown in FIG. This prevents the marker support frame 42 and the drawing marker 40 on the outside of the turn from coming into contact with a ridge or the like.

As shown in FIG. 6, when planting an outer periphery of a field such as a ridge or a headland, as shown in FIG.
Is fixed at a position rotated forward, thereby preventing the marker support frame 42 and the drawing marker 40 on the ridge side from coming into contact with the ridge or the like.

At the time of transportation by truck, as shown in FIG. 7, the second frames 42b, 42b are turned obliquely backward so as not to interfere with the extension steps 36, 36,
The third frames 42c, 42c are rotated forward to reduce the lateral width of the body.

Further, when it is desired to reduce the left and right width of the aircraft,
As shown in FIG. 8, after removing the outer portions 36a, 36a of the extension steps 36, 36, the second frame 42
b and 42b are rotated rearward at right angles to the first frames 42a and 42a,
c, 42c to the rear wheels 20, 20, 21, 21, 22, 22, 22
Fold forward to avoid contact. Also, the side markers 41, 41 are folded forward.

At the time of shipment from the factory, as shown in FIG. 9, the outer portions 36a, 36a of the extension steps 36, 36 are removed, and the second frames 42b, 42b are connected to the first frame 42.
The third frames 42c, 42c and the side markers 41, 41 are folded rearward while being fixed at a position perpendicular to the rear with respect to the a, 42a.

On the left and right sides of the body, spare seedling stands 48, 48 for placing seedlings to be supplied to the seedling stand 80 described later are provided. The spare seedling mounting table 48 is provided with a plurality of stages of seedling mounting frames 48 on a spare seedling mounting frame 48a whose base is supported by the first frame 42a of the marker support frame 42.
are attached, and the seedling placing frames 48b,
.., Two seedling boxes are placed side by side with the longitudinal direction facing forward and backward. The seedling placing frame 48b has a structure in which an inner portion 48bA and an outer portion 48bB are connected by a hinge 48c.
It can be inverted over 8bA.

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 drive 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 planting portion transmitted from the transmission case 10 of the vehicle body 2 is transmitted to the input portion 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,... Are 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 in the upper side, and is divided into seedling mounting portions 80-1 to 80-10 for each seedling attachment strip by partition walls 81,. I have. 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 supporting structure is such that engaging sliding contact members 84,.
The engaging sliding member is slidably engaged left and right with a left and right long support rail 83 provided on the planting transmission case 62, and the planting transmission case 62-2, 62-4. Rollers 86,... Attached to a seedling table support frame 85 whose base is supported 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. Both ends of the horizontal moving rod 74 are connected to mounting members 88, 88 fixed to the horizontal frame 82 via connecting members 74a, 74a.
0 also reciprocates left and right along the support rail 83. At the upper end of each seedling mounting surface, an extended seedling
9 are rotatably attached to the seedling mounting surface side.

The support rail 83 is provided with the engaging sliding member 8.
A part 83a having a rectangular cross section with which the 4,... Engage and a part 83b having an L-shaped cross section for receiving the lower end surface of the seedling on the seedling mounting table are integrally formed. 10
A seedling dividing port 90,... Cut out in a U-shape is formed at the location. As the seedling mounting table 80 reciprocates left and right, the seedlings located at the lower end of each seedling mounting part are separated from the seedling division openings 90,.
Are supplied sequentially. Seeding planting device 16 of seedling planting device 160
2 passes through the seedling dividing port 90, and the seedlings are divided into one plant and taken out. 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.

A belt type for transferring the seedlings downward when all the seedlings in one horizontal row located at the lower end of the seedling placement part are transplanted below the seedling placement parts 80-1 to 80-10. Are provided respectively. 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. In addition, the seedling vertical feed drive shaft 7
3 are integrally provided with a seedling vertical feed drive arm 100,.
01, ... are supported. When the seedling mounting table 80 reaches the end of the left-right stroke, the drive arm 98 comes into contact with the roller 101, and the roller drive shaft 96a is rotated by a predetermined angle, whereby the seedling feed belt 95 is operated by a predetermined amount. Has become. 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. Rotary shaft 97a of driven roller 97
Is pulled by the spring 104 in the direction in which the seedling feed belt 95 is stretched. Further, an operation stop member 107 interlocked with an operating tool 71a for operating the ridge clutch 71 via a wire 106 is provided.
Is operated to "OFF", the operation stopping member 107 is engaged with the driven roller 97, and the seedling feed belt 95 is not fed.

At the lower part of each seedling mounting part, 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, and can select a seedling holding action state indicated by a solid line in FIG. 12 and a seedling holding non-operation state indicated by a chain line in FIG. 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, and the engagement is released, and the seedling presser 110 is moved upward. 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, resistance bars 119,... Receiving the leaves of the seedling located at the lowermost level and raising the leaves so that the leaves do not hang down, are 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 attachments PL4 and PL5 (or PL7 and PL6) from the outside, and the third seedling attachment PL3 (or the third) from the outside. Are the middle floats 170M, 170M for leveling the PL8, and the first and second seedling attachments PL1, PL2 (or PL9, PL1) from the outside.
0) is provided with side floats 170S, 170S for leveling. A pair of left and right float support arms 172, 172,... Are mounted on a float support shaft 171 rotatably supported laterally below the planting transmission case 62,.
Are fixedly attached to the rear ends of a pair of left and right float support arms via mounting shafts 173 in the left-right direction and mounting legs 174, 174, ... fixed to the upper surface of the float. 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.

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.

The rice transplanter 1 is provided at various locations with a structure for reducing the lateral width of the seedling planting section 4 during transportation or storage. First, the configuration of the folded portion of the seedling mounting table 80 at the left and right ends will be described.

A partition wall 81-4 for partitioning the third seedling mounting portion 80-3 from the left and the fourth seedling mounting portion 80-4 is divided into an inner portion 81a and an outer portion 81b. , The inner part 81a is a seedling placement part 80-4 to 80-8 at the center.
The outer part 81b is formed integrally with the three left outer seedling placement parts 80-1, 80-2, and 80-3. The partition wall 81-4 is formed higher than the other partition walls except the partition wall 81-9 with respect to the seedling mounting surface.
A single rotary shaft 121 is inserted through cylindrical portions 120a, 120b,... Formed at the upper ends of the two portions 81a, 81b. The parts 80-1, 80-2, and 80-3 are turned inward upward, and the parts are overlapped on the fourth to sixth seedling placement parts 80-4, 80-5, and 80-6 from the left. It folds into a state. Prop 1 provided on the fifth to seventh partition walls 81-5, 81-6, 81-7 from the left
At the top of 11,..., Concave column supports 122,... Are fixed, and are provided on the partition walls 81-1, 81-2, 81-3 when the three seedling placement portions on the left outer side are folded. Prop 11
The tops of the columns engage with the column receivers 122.

Further, a partition wall 81-9 for partitioning the second seedling placing portion 80-9 from the right and the third seedling placing portion 80-8 from the right is
The inner part 81a is divided into an inner part 81a and an outer part 81b, and the inner part 81a is a central seedling placement part 80-4 to 80-8.
0-8, and is formed integrally with the outer side 81b.
It is formed integrally with the seedling placement portions 80-9 and 80-10 of the stripe. This partition wall 81-9 is formed higher than the partition wall 82-4 with respect to the seedling mounting surface. And both parts 8
Cylindrical portions 120a, 120b formed at the upper end portions of 1a, 81b
, One rotation shaft 121 is inserted through and provided on the right side of the rotation shaft 121 as a center.
9, 80-10 is inverted upward and inward, and this portion is folded so as to overlap the third and fourth seedling placement portions 80-7 and 80-8 from the right. A concave column support 122 is fixed to the bottom surface of the leftmost partition wall 81-1 and provided on the rightmost partition wall 81-11 when the right outer two-row seedling placement portion is folded. Prop 111
Are engaged with this column receiver 122. Further, the top of the support 111 provided on the partition wall 81-8 and the top of the support 111 provided on the partition 81-10 are connected by the auxiliary support 123,
The seedling placing portions 80-9 and 80-10 are supported.

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 three seedling placement portions 80-1, 80-2, 80-3 on the left outside and the two seedling placement portions on the right outside are placed. The portions 80-9 and 80-10 cannot be inverted at the same position, and the seedlings are pushed up by the gap S along the inclination of the seedling mounting table in order to avoid interference with the L-shaped portion 83a. This is for inverting the mounting portion.

In FIG. 19, reference numeral 82 denotes the horizontal frame. The horizontal frame includes the seedling mounting portions 80-4 to 80-8 at the center and the seedling mounting portions 80-1, 80-2, and 80- at the right and left outer portions. 3 (or 80-
9, 80-10), it is separated into a central portion 82A and an outer portion 82B near the boundary. The mounting member 88 is fixed to both left and right ends of the central portion 82A, and a fixing member 124 is fixed to the inner end of the outer portion 82B so as to face the mounting member 88. 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. 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 screw hole 126 of the mounting member 88, so that the seedlings on the left and right outer portions are placed. Placing parts 80-1, 80-2,
80-3 (or 80-9, 80-10) is fixed to the seedling placement sections 80-4 to 80-8 at the center. The fixed rod 12
7, a small-diameter portion 127a is formed in an appropriate position. When the fixing rod 127 is pulled out from the screw hole 126 when the seedling placement portion on the left and right sides 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. 129 in the figure is a knock pin 128
Is a spring that urges the fixing rod side.

In FIG. 20, reference numeral 131 denotes a horizontal pipe provided on the upper rear surface of the seedling mounting table. This horizontal pipe is also provided with a seedling mounting section 80-4 to 80-8 at the center and a seedling mounting section 80-80 at the left and right outer sides. 1,
In the vicinity of the boundary between 80-2 and 80-3 (or 80-9 and 80-10), it is separated into a central portion 131A and an outer portion 131B. A male screw member 132 is fitted on the inner end side of the hollow portion of the central portion 131A. Screw hole 1 at the tip
The fixing rod 134 on which the 33 is formed is moved from the outside to the horizontal pipe 13.
1 and the screw holes 133 are screwed into the male screw members 132, so that the seedling mounting portions 80-
1,80-2,80-3 (or 80-9,80-10)
Is fixed to the seedling placement portions 80-4 to 80-8 at the center. The mechanism for preventing the fixing rod 134 from falling off is provided by the fixing rod 127.
Similarly, the knock pin 137 biased by the spring 136 is engaged with the small diameter portion 134a of the fixing rod 134.

When the left and right outer seedling placing portions are deployed, the centrally located seedling vertical feeding device and the left and right outer seedling vertical feeding devices are configured to be drive-coupled (see FIG. 14). That is, the roller drive shaft 96 of the central seedling vertical feeder 94A
The aA has a drive arm 98 attached to an inner end thereof via a ratchet mechanism 99, and a drive clutch body 140 having a clutch claw attached to an outer end thereof. A driven clutch body 141 attached to an outer roller drive shaft 96aB is engaged with the drive clutch body 140. The driven clutch body 141 is
It is fitted so as to rotate integrally with the outer roller drive shaft 96aB, 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 is easily connected and quickly becomes engaged.

The seedling mounting 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 seedling placement portions 80-4 to 8 at the center are attached to the upper end of the rotating frame 85.
c, 85c, the left and right outer seedling placement sections 80-1, 8
Rollers 86, 86 supporting 0-2, 80-3 (or 80-9, 80-10) are attached.

Roller 86 supporting left and right outer seedling placement parts
The roller shaft 86a is axially slidably fitted in the roller shaft hole of the rotating frame 85c.
a rotating frame 85c with a spring 86b loosely fitted to
Is stopped by a split pin 86c that is urged away from the roller shaft 86a and inserted through the roller shaft 86a. Roller shaft 86
A finger hook 86d is fixed to the end of “a”. 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 shaft portion 85d on the horizontal frame 85b side and a cylindrical portion 85e on the rotating frame 85c rotatably and slidably fitted in the axial direction. . 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 portions of the seedling mounting table are folded in a state where the rollers 86 supporting the left and right outer seedling mounting portions are disengaged from the U-shaped concave portions of the upper rail 87, the rotating frame is pulled by the wire 106. 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.

The support rail 83 is provided with a seedling mounting portion 80-
A fixed portion 83A having a seedling dividing port 90 corresponding to 3 to 80-8 and a seedling placing portion 80-1, 80-2 (or 80).
-9, 80-10) and a detached portion 83B having a seedling dividing port 90,.
A and 83B are connected to the pin holes 150 on the fixed part side by inserting the connection pins 151 on the detached part side, and are further connected to the stopper pins 152 on the fixed part side and the hooks 153 on the detached part side.
, And the hooks are pulled outward by the lever 154 so that the two portions 83A and 83B are in close contact with each other. When the lever 154 is rotated inward, the engagement between the stopper pin 152 and the hook 153 is released, and the head of the hook 153 pushes the plate 155 of the fixed portion inward. Extruded. Therefore, the connection pin 1
51 is slightly removed, 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 62-5), 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.

When the second connecting pipe 64 is straight, a lock plate is fixed to a fixing plate 188 fixed to a fixed handle 187 whose base is rotatably supported on the inner pipe 64a around the left and right axes, and a lock nut is fixed to the outer pipe 64b. 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 is provided on the 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.

The outermost planting transmission case 62-1
(Or 62-5) fixed to the rear part and the seedling planting device 160
-2 (or 160-9), a connecting member 196 formed into a shape that does not interfere with the implanting tools 162, 162, and a rear portion of the adjacent implanting transmission case 62-2 (or 62-4), and Planting device 16 of seedling planting device 160-3 (or 160-8)
Connecting member 197 molded into a shape that does not interfere with 2,162
Are rotatably pivoted by a rotation fulcrum shaft 198 located coaxially with the rotation fulcrum shaft 182 of the second connection pipe 64b.

When the outer pipe 64b of the second connecting pipe is bent upward by about 90 degrees, as shown by a chain line in FIG. 11, the outermost planting transmission case 62-1 (or 62-5).
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. The pivot point of the outermost planting transmission case 62-1 (or 62-5) is two places in front and back (the pivot point shaft 182 and the pivot point 19).
8) Since it is provided, rattling of the planting transmission case 62-1 (or 62-5) is suppressed.

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 divided 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 two left and right outer strips are made of a resin pipe 206 so that the fertilizer hose 203 can be removed from the fertilizer guide 202 when the planting transmission case 62-1 (or 62-5) is moved inward. Connected through. The length of the resin pipe 206 is set so that its upper end is located near the upper end of the planting transmission case 62. For this reason, the planting transmission case 62-1 (or 6
When 2-5) is moved inward, the resin pipe 206 does not interfere with the seedling mounting table 80, and the fertilizer hose 203 is easily detached from the resin pipe 206.

The rice transplanter 1 is configured as described above, and when transported or stored, the lateral width of the machine is reduced as follows (FIG. 2).
7, FIG. 28). (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) Draw markers 40, 40 and side markers 41,
41 is stored in the state shown in FIG. The step (3) may be omitted, and the drawing markers 40, 40 and the side markers 41, 41 may be stored in the state shown in FIG. (5) Slide the auxiliary wheels 21, 21, 22, 22 inward. (6) Seedling placement sections 80-1, 80-2, 80- on the left outer side
3 and the seedling placement portions 80-9 and 80-10 on the right outside are inverted upward and inward, and the seedling mounting table 80 is folded. Along with this, the rotating frames 85c, 85c of the seedling mounting table support frame 85 are rotated backward. (7) Activate the seedling mounting drive mechanism so that the center of the folded seedling mounting 80 is at the left and right center of the vehicle body. (8) Remove the removal parts 83B, 83B of the support rail 83. (9) Remove the side floats 170S, 170S.
In some cases, it is not necessary to remove the side floats 170S, 170S. (10) The second connection pipe 64 of the transmission case 60 is bent upward by about 90 degrees at the middle part, and the outermost planted transmission case 6 is bent.
2-1 and 62-5 and two outer seedling planting devices 160-1, 160-2, 160-9 and 1 attached thereto.
Rotate 60-10 upward. In conjunction with this, the outer portions 171b, 171b of the float support shaft 171 are also bent upward.

[0062]

As apparent from the above description, in the seedling transplanter according to the present invention, the number of the seedling placing portions to be moved inward to reduce the left and right width of the seedling table is set to the left end side and the right end. By making one difference from the section side, the right and left width of the seedling mounting table can be effectively reduced in the case of a specific number of seedlings to be planted, for example, 10 rows. In the description of the embodiment of the present invention, the seedling transplanter of ten-row planting has been described, but the present invention is not limited to this.

[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 rear view of a marker support arm, a drawing marker, and a side marker.

FIG. 4 is a first plan view of a marker support arm, a drawing marker, and a side marker.

FIG. 5 is a second plan view of the marker support arm, the drawing marker, and the side marker.

FIG. 6 is a third plan view of the marker support arm, the drawing marker, and the side marker.

FIG. 7 is a plan view 4 of the marker supporting arm, the drawing marker, and the side marker.

FIG. 8 is a fifth plan view of the marker supporting arm, the drawing marker, and the side marker.

FIG. 9 is a plan view 6 of the marker supporting arm, the drawing marker, and the side marker.

FIG. 10 is a plan view in which a part of a seedling planting part is omitted.

FIG. 11 is a rear view in which a part of a seedling planting part is omitted.

FIG. 12 is a side sectional view of a lower part of a seedling mounting table.

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

FIG. 14 is a view taken in the direction of arrow B in FIG. 12;

FIG. 15 is a side view of the seedling mounting table in a state where the seedling mounting portions on the left and right outer portions are folded.

FIG. 16 is a front view of a main part of a seedling mounting support frame.

FIG. 17 is a view taken in the direction of arrow C in FIG.

FIG. 18 is a view taken along arrow C in FIG. 15 in which a part is omitted.

FIG. 19 is a cross-sectional view of an upper connecting portion between a seedling placement portion at a center portion and left and right outer seedling placement portions.

FIG. 20 is a cross-sectional view of a lower connecting portion between a seedling placement portion at a center portion and left and right outer seedling placement portions.

FIG. 21 is a view showing (a) a connected state and (b) a detached state of a connecting portion between a fixing portion and a removing portion of the support rail.

FIG. 22 is a rear sectional view of a bent portion of the transmission case.

FIG. 23 is a sectional view taken along line S1-S1 in FIG. 22;

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

FIG. 25 is a side view of a mounting portion of the side float.

FIG. 26 is a rear cross-sectional view of the side float mounting portion.

FIG. 27 is a side view of the rice transplanter in the left-right width reduced state.

FIG. 28 is a plan view of the rice transplanter in the 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 40 wire drawing marker 41 side marker 42 marker support frame 60 transmission case 80 seedling mounting table 80-1 to 80-10 seedling mounting Part 83 support rail 160 seedling planting equipment 170 float 200 fertilizer hopper

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Shin Shin Yamaguchi 1 Tochi-cho, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A seedling mounting table divided into a plurality of seedling receiving portions in parallel with each other for each seedling mounting strip. The seedlings are placed on each seedling mounting portion, and the seedling mounting table reciprocates in the left-right direction. In a seedling transplanter that supplies seedlings to a predetermined position, a configuration in which the left and right outer end portions of the seedling mounting table are moved inward when not in operation to reduce the left and right width of the seedling mounting table. And a seedling transplanter characterized in that the number of seedling placing portions moving inside the seedling placing portion is different by one between the left end portion and the right end portion.