JPH0889032A - Rice planter - Google Patents

Abstract

PURPOSE: To provide a rice planter capable of contracting the width of a planting working machine of a multiple row rice planter, etc., such as planting 10 rows simultaneously. CONSTITUTION: This rice planter capable of transmitting the rotation of planting main shaft 70 installed in a transmission case main body A in the left and right width direction to planting devices 160 through transmitting means (72-1)-(72-n) in planting transmission cases (62-1)-(62-n) provided in the front to rear direction, comprises providing [(n/2)+1] planting transmission cases in a row from left to right in the case of planting (n) rows (n is an even number), one set each of the planting devices 160 to the both sides of the planting transmission cases (62 2)-(62-5) [(n) is 10] located in the middle part except for the left and right outermost sides planting transmission cases and one set of the planting device at the outside of the outermost planting transmission cases (62-1), (62-6) of left and right, and making the left and right outermost planting transmission cases (62-1) , (62-6) attachable and detachable together with the planting devices to the transmission case main body A.

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art The most overhanging on the left and right of a rice transplanter is the seedling table part of the planting machine, so that the outermost edge of the seedling table is made foldable.
An 8-row rice transplanter has been developed that can reduce the lateral width of the work machine with seedlings during transportation and storage. For example, by folding the outermost end portion of the seedling mounting table, it becomes possible to load the seedling mounting table on a 2 ton loading truck having an average loading platform width.

[0003]

Conventionally, most of the rice transplanters that have been put into practical use are up to 8 rows, but with the increase in the scale of agricultural management, a multiple row rice transplanter with more than 10 rows has been planted. Development is essential. With such a multi-row planting rice transplanter, the lateral width of the planting machine with seedlings is particularly large, but there is also a great demand that it can be loaded on a truck of about 2 tons.

For example, in the case of a 10-row planting machine, the width of the seedling placing table is set so that it can be loaded on a 2-ton stacking truck by folding the seedling placing portions of 2 rows from the outside. However, since the left and right end portions of the transmission case of the work machine for planting seedlings and the planting devices on the outermost side are projected to the left and right more than the folded seedling mounting table, they will protrude from the bed of the 2-ton truck. Therefore, it has become necessary to reduce the lateral width of the portion where the transmission case and the planting device are provided.

[0005]

In order to solve the above problems, the present invention has the following constitution. That is, the rice transplanter according to the present invention is a rice transplanter in which the rotation of a planting spindle provided in the lateral direction in the transmission case main body is transmitted to the planting device through the transmission means in the planting transmission case provided in the front-rear direction. In the case where the number of planting threads is an even number n, the (n / 2 + 1) number of the planting transmission cases are provided in parallel on the left and right, and the planting transmission cases in the middle part excluding the left and right outermost planting transmission cases are One set of planting devices is provided on each of the left and right sides, and one set of planting devices is provided on the outside of the left and right outermost planted transmission cases, and the left and right outermost planted transmission cases are also planted. It is characterized in that it can be attached to and detached from the transmission case body.

[0006]

The left and right outermost planting transmission cases are removed from the transmission case main body together with the planting device, and the lateral width of the transmission case of the seedling planting machine and the portion where the planting device is provided is narrowed. The left and right outermost planting transmission cases are provided with only one set of planting devices, and when the planting transmission case is removed, the minimum necessary planting device can be removed.

[0007]

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

The traveling vehicle body 2 includes a pair of left and right front wheels 10, 1.
It is a four-wheel vehicle equipped with 0 and rear wheels 11, 11. The mission case 12 is arranged in the front part of the airframe, and the front wheel axle frames 13, 13 are arranged from the left and right side parts of the mission case.
Extend to the left and right, and the front case 1
4, 14 are provided. Front wheel support cases 15 and 15 are rotatably provided below the front wheel final cases 14 and 14, and the front wheels 10 and 10 are attached to front wheel axles 10a and 10a that project laterally from the outer side portions thereof. Further, front ends of a pair of left and right vertical frames 17, 17 are fixed to the rear surface of the mission case 12, and a horizontal frame 18 is fixed to the rear ends of the vertical frames 17, 17. Then, the rear wheel rolling shaft 19 whose axis is oriented horizontally in the front-rear direction is fixedly fitted to the left and right central portions of the horizontal frame 18, and the rear wheel frame 20 is supported by the projecting portion of the rear wheel rolling shaft in a freely rolling manner. ing. Rear wheel gear cases 21 and 21 are provided at the left and right ends of the rear wheel frame 20, and the rear wheel axle 11 projects laterally from the outer side portions thereof.
Rear wheels 11 and 11 are attached to a and 11a. The power for driving the rear wheels in the mission case 12 is generated by the rear wheel drive shafts 23, 23 that are freely expandable and contractible.
It is transmitted to 1.

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

On the upper part of the fuselage, the front wheels 10,
A steering wheel 40 for steering the vehicle 10 is provided, and a seat 42 is installed on an engine cover 41 that covers the upper side of the engine 10. A lower portion of the handle 40 is covered with a post cover 44, and a display panel 43 for displaying various operating states is provided on the upper portion thereof. Around the engine cover 41 and the post cover 44, there is a horizontal main step 45 that allows the operator to walk freely. The rear portion 45a of the main step 45 has rear wheels 11, 1
It is high so that it does not interfere with 1. Further, on both the left and right sides of the main step 45, the expansion step 4 is performed so that the step surface is at the same level as the main step 45.
6, 46 are provided. As with the main step 45, the rear steps 46a and 46a of these expansion steps are also higher. The left and right expansion steps 46, 46 are located outwardly of the rear wheels 11, 11 in a plan view, and the seedling table 80 described later is provided.
Left and right folding parts 80-1, 80-2, 80-9,
It is provided so as to be located inside 80-10. Further, below the expansion steps 46, 46, elevating steps 47, 47 used when getting on and off the steps from the left and right sides of the machine body are provided. It is also possible to get on and off the main step 45 directly from the front side of the machine body.

Further, on the left and right sides of the front part of the machine body, there are provided preliminary seedling mounts 48, 48 on which seedlings to be supplied to the planting work machine 4 are placed. This spare seedling mounting table 48 is expanded step 4
6. A support post 201 is vertically provided upright on a preliminary seedling mount frame 200 provided on the front side of 6, and a seedling frame 202 is attached to the support post so as to be rotatable about a vertical axis. A plurality of stages of seedling frames 203, ... Are attached at predetermined intervals. Each of the seedling frames 203, ... Is configured such that both left and right wing portions are folded upward with the left and right center portions as fulcrums. The inner surface of the support post 201 is provided with a sleeve 205 for fixing and storing the separating portion B of the transmission case, which will be described later, on the preliminary seedling mounting base frame 200.

The lifting link device 3 includes vertical frames 17 and 1.
7, an upper link 51 and a lower link 5 rotatably attached to a link base 50 fixedly provided at the rear end portion
The vertical links 53 are connected to the rear ends of the upper and lower links. The connecting shaft 54 fixed to the seedling planting machine side is rotatably inserted and connected to the bearing portion projecting rearward from the lower end of the vertical link 53, and the seedling planting machine 4
Is rotatably attached to the left and right with respect to the traveling direction. The hydraulic cylinder 56 for driving the lifting link device has a support member (not shown) whose base side is fixed to the vertical frames 17, 17.
And a piston rod side thereof is connected to a lower end portion of a swing arm 57 integrally provided on a base portion of the upper link 51. When the hydraulic cylinder 56 is expanded and contracted, the elevating link device 3 is moved up and down, and the work unit 4 with seedlings is moved up and down in a fixed posture. The hydraulic cylinder 56 is switched and controlled by a hydraulic valve 58 provided in the work unit 4 with seedlings.

The working machine 4 for planting seedlings has a structure of 10-row planting, a transmission case 60 also serving as a frame, a seedling mount 80 on which seedlings are placed, and a seedling on the seedling mount is planted in a field scene 10 in total.
A set of planting devices 160, ... Is provided.

The transmission case 60 is a seedling table drive case 61.
And 6 transmission cases with planting 62-1 to 62-6 and two long and short connecting pipes 63, 63, 64 and 64 in combination. Planting transmission cases 62-3, 62 are provided on both lower and left and right side surfaces of the seedling table driving case 61 located in the center of the left and right.
-4 is connected to the inner surface of the front part thereof, and the planted transmission case 62-
Longer connecting pipes 63, 6 on the front outer surface of 3, 62-4
3, the plant inner transmission cases 62-2, 62-5 are connected to the front inner surfaces thereof, and the planted transmission cases 62-2, 62-5 are further connected.
The front inner surface of the planted transmission cases 62-1 and 62-6 is connected to the front outer surface of -5 via the shorter connecting pipes 64 and 64. Then, the four inner transmission cases 62-
2 to 62-5 are provided with the planting device mounting shafts 64, ... Projecting to the left and right sides from the rear part, and the planting devices are mounted on the rear parts of the two outermost two planting transmission cases 62-1 and 62-6. Mounting shaft 6
4 is provided so as to project to the outside. A total of 10 sets of the planting device 16 are provided on each protrusion of the planting device mounting shafts 64, ....
0, ... Are attached at equal intervals on the left and right.

The transmission case 60 of the traveling vehicle body 2 is transmitted to the transmission case 60 via the first planted transmission shaft 66, the planted clutch case 67, and the second planted transmission shaft 68.
The power input to the transmission case 60 is supported by penetrating the lower part of the seedling table drive case 61, the front part of the planted transmission cases 62-2 to 62-5, and the inside of each of the connecting pipes 63, 63. It is transmitted to the planting main shaft 70, and is further planted in the planting transmission cases 62-2 to 5 by means of the row-based planting clutches 71-1 to 71-4 via the planting main shaft 70 and the chain 72 that can be engaged and disengaged. It is transmitted to the attachment device attachment shafts 64-2 to 5. The chains 72, ... Are transmission means in the planted transmission case for transmitting the rotation of the planted main shaft 70 to the planting devices 160 ,.

The planted transmission cases 62-1 and 62-6
A coupler 73 in which extension shafts 70a, 70a of the planted main shafts supported in the front part of each of the connection pipes 64, 64 are integrally provided with the chain side portions of the row-specific planting clutches 71-1 and 71-4. , 73 is detachably inserted and connected, and its extension shafts 70a, 70a and the planted transmission cases 62-1, 62 are attached.
The planting device mounting shafts 64-1 and 64-6 of -6 are the chain 7
2, 72 are transmission-coupled respectively. The transmission portion between the extension shafts 70a, 70a and the chains 72, 72 is not provided with a row-specific planting clutch.
70a and chains 72, 72 are directly connected.

The individual clutches 71-1 and 71-4 for individual strips can be operated individually by turning them on and off. Therefore, the planting articles PL1, PL2, PL3, the planting articles PL4, PL5, the planting articles PL6, PL7 and the planting articles PL8, PL9, PL1.
The planting operation and planting stop of each line can be selected in units of 0.

The connecting pipes 64, 64 are detachably attached to the planted transmission cases 62-2, 62-5 with bolts, and the planted transmission cases 62-1, 62-6.
And connecting pipes 64, 64 and planting devices 160-1, 60-
6 and 6 are integrally separated from the main body portion A of the transmission case 60. In addition, floats 170-1 and 170-6 described later are also attached to the separating portions B and B. As a result, the lateral width of the portion where the transmission case 60 and the planting device are provided can be reduced during transportation and storage.

When the separating parts B and B are separated from the main body part A, the extension shaft 70 is separated from the couplers 73 and 73 accordingly.
a and 70b are extracted. The couplers 73, 73 are the transmission cases 62-2, 62-5 with the plant and the connecting pipes 64, 64.
Since it is provided so as to be retracted closer to the planting transmission case side than the joining surface of the seedling planting machine, the separating parts B and B are separated from each other and the seedling planting work machine 4 is separated.
It is possible to prevent the members on the side of the main body portion A such as the couplers 73, 73 from being damaged when carrying the. Further, when viewed from the side of the separating portions B, B, the extension shafts 70a, 70b project from the joint surfaces of the planted transmission cases 62-2, 62-5 and the connecting pipes 64, 64, so that the separating portions B, When attaching B to the main body A, the extension shafts 70a and 70b are connected to the couplers 73 and 7
It is easy to insert and connect the cable to the cable 3.

The connecting portion between the planted case body A and the separating portions B, B is specifically as shown in FIG. That is, the flange 7 of the planted transmission case 62-2 (62-5).
4 and the flange 75 of the connecting pipe 64 are connected by bolts 76, .. The bolts 76, .. .. are much longer than the sum of the thicknesses of the flanges 74, 75. As a result, it is possible to position the two flanges 74, 75 even if they are separated from each other.
Since the main body portion A and the separation portion B can be brought close to each other while being guided by ..., the planted main shaft 70 and the planted extension shafts 70a, 70a.
Is easy to connect.

The connecting shaft 54 is provided so as to project from the center of the front surface of the seedling table driving case 61. Further, from the left and right side surfaces of the seedling table driving case 61, a seedling vertical feed drive shaft 77 that rotates in a fixed direction and a lateral movement rod 78 that reciprocates left and right for lateral movement of the seedling table are projected.

The seedling placing table 80 is provided so as to be inclined so that the front side is in a higher position, and the upper surface of the seedling placing table 80 is divided into a number of planting rows by a partition wall 81 ,. There is. The seedling mounting table 80 is supported on the back side of the seedling mounting surfaces 80a, ... The support structure has a seedling mounting surface 80a, ...
Is fixed to a horizontal frame 82 provided in the left-right direction on the lower portion of the rear surface of the rear side, and the left and right long supporting rails are provided on the planted transmission frames 62 ,. 83 is slidably engaged to the left and right, and a base is fixed to the planted transmission cases 62-2 and 62-5 to provide a seedling stand supporting frame 85, and the upper end of the seedling stand supporting frame is provided. The rollers 86, 86 attached to are engaged with the U-shaped concave portions of the support frame 87 fixed to the upper part of the rear surface of the seedling mounting surface 80a, ....
Both ends of the lateral movement rod 78 are attached to attachment members 88 and 88 fixed to the lower horizontal frame 82 via connecting members 87 and 87, and the lateral movement rod 78 reciprocates left and right to thereby cause a seedling stand. 80 also reciprocates left and right along the support rail 83. In addition, extended seedling mounting portions 89, ... Are rotatably attached to the upper end portions of the seedling mounting surfaces 80a ,.

The support rail 83 is provided with the engaging sliding contact member 8
A portion 83a having a rectangular cross section with which 4, 4, ...
0a, ... are integrally formed with a portion 83b having an L-shaped cross section for receiving the lower end surface of the seedlings above, and each seedling mounting surface 80
Seedling dividing ports 90, ... Notched in a U shape are formed at 10 positions corresponding to a ,. By moving the seedling mounting table 80 left and right, the seedlings located at the lower end of the seedling mounting surface 80a, ... Are sequentially supplied to the seedling dividing ports 90 ,. When separating the seedlings on the seedling mounting table 80, the planting tool 162 described later of the planting device passes through the seedling dividing port 90. In addition, rubber seedling division guides 9 are provided on the left and right sides of the edge of the seedling division 90.
1, 91 are attached, and the seedling dividing port 90
A guide member 92 made of a metal wire formed in a shape along the tip locus of the planting implement 162 is attached to the front side of the edge portion of the.

The support rail 83 is a planted transmission frame 62-
2 to 62-5 are fixed to the brackets 106, ... By rotating the seedling-picking-amount adjusting rod 107, which is rotatably fitted to the brackets, using a seedling-picking-amount adjusting lever (not shown). , Support rails 83 and seedling mounts 80
The vertical position can be adjusted in parallel with. Thereby, the amount of seedlings taken by the planting implement 162 can be adjusted.

A belt type seedling vertical feeding device 94, ... Is provided for each row at the bottom of the seedling placing table 80.
When all the seedlings for one horizontal row located at the lower end of a, ... Are transplanted, the seedlings on the seedling mounting surface 80a ,. This seedling vertical feeding device 94 uses an endless seedling feeding belt 95 having small protrusions formed on the outer periphery thereof as a driving roller 96.
And the driven roller 97. A drive arm 98 is attached to a roller drive shaft 96a to which the drive roller 96 is attached via a ratchet mechanism 99. Further, seedling vertical feed drive arms 100, ... Are integrally attached to the seedling vertical feed drive shaft 77, and rollers 101 ,. When the seedling stand 80 reaches the end of the left and right stroke, the drive arm 98 contacts the roller 101, and the roller drive shaft 96
a is rotated by a predetermined angle, whereby the seedling feeding belt 95 is operated by a predetermined amount. Laura 1
01 moves away from the drive arm 98, the spring 103
The driving arm 98 returns to the pre-driving posture by the tension of.
The rotation shaft 97a of the driven roller 97 is pulled by the spring 104 in the direction in which the seedling feeding belt 95 is stretched.

A seedling retainer 110 for preventing the seedling from floating is provided below each seedling mounting surface 80a. This seedling retainer 110 has partition walls 81, 8 on both sides.
1 is supported by support members 111a and 111a attached to the support columns 111 and 111 protruding from the column 1. It is possible to select a seedling pressing operation state shown by a solid line in FIG. 5 and a seedling pressing inactive state shown by a chain line in FIG. Has become. The structure is such that the horizontal bar 112 is rotatably supported by the support members 111a, 111a, and the main bar pressing rods 113, 11 are supported by the horizontal bar 112.
3 is fixed so that its axis is oriented in the seedling vertical feeding direction, and the lower end portion of the main seedling pressing rod is connected by a horizontal rod 115. Also, a short auxiliary seedling holding rod 11 is provided between the main seedling holding rod 113, ....
6 are provided in parallel, and the lower end portion of the lower horizontal bar 115.
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 80a, and engaging holes 118a and 118a are provided in locking members 118 and 118 fixed to the upper surfaces of the lower ends of the partition walls 81 and 81.
To be engaged with. The left and right end portions 115a, 115a of the horizontal bar 115 are fitted in the engaging holes 118a, 118a.
, The seedling retainer 110 is fixed in the seedling retainer working state, and by disengaging the above-mentioned engagement and rotating the seedling retainer 110 upward about the upper horizontal bar 112, the seedling retainer 110 Becomes the seedling presser inactive state.

Further, at the lower end portion of each seedling mounting surface 80a, ..., Horizontally installed resistance rods 119, ... Which receive the leaf of the seedling located at the lowest stage and lift it so that the leaf does not hang downward. Has been.

By the way, in this seedling placing table 80, the central six-row portions 80-3 to 80-8 are integrally provided, but the outer two-row portions 80-1, 2, 80-9, 10 are It is provided separately from this, and the outer strip portion is constructed so as to be able to be folded upside down. The structure of the folded portion is as follows.

The partition walls 81-3 and 81-9 for partitioning the second strip from the outside and the strip inside thereof are divided into an inner portion 81a and an outer portion 81b, and the inner portion 81a is the central portion 80. -3 to 80-7 are integrally formed, and the outer portion 81b is the inverted portion 80-1.2 or 80-9.10.
Is formed integrally with the. Also, the partition walls 81-3, 8
1-9 is formed higher than the other partition walls with respect to the seedling placing surface 80a. Then, one rotating shaft 121 is provided through the cylindrical portions 120a, 120b, ... Formed at the upper ends of the two parts 81a, 81b, and the reversing parts 80-1.2 are provided with the rotating shaft 121 as the center. 80-9.10 is turned inward, and the part concerned is made into the inner strip part 80-3.4, 80-
It is designed to be folded on top of 7/8. The fourth and fifth partition walls 81-4, 81- from the outside
5, 81-7, 81-8 are provided with concave support posts 122, ... On the tops of the support pillars 111, ..., In the folded state, partition walls 81-1, 81-
The tops of the columns 111, ... Provided at 2, 81-10, 81-11 are engaged with the column receivers 122 ,.

Regarding the arrangement of the tubular portion, the tubular portion 1
20a and 120b are arranged in three groups, one from the top, 120b, 120a, 120b, 120a, 120a,
They are arranged in the order of 120b. In addition, the upper two sets of tubular portions 12
There is no gap between 0a and 120b, but the lowermost tubular portion 1
A gap S is provided between 20a and 120b. This is for the following reason. That is, since the L-shaped portion 83a of the support rail 83 has an acute angle in a side view, the outermost end strip portions 80-1 and 80-8 of the seedling mounting table cannot be inverted at the position as they are, and L This is because the reversal parts 80-1, 2, 80-9, 10 are reversed while being pushed up by the gap S along the inclination of the seedling mounting table in order to avoid interference with the strip-shaped portion 83a.

When the seedling table 80 is unfolded, the inverted portion 80-
1,2,80-9,10 central part 80-
It is fixed to 3 to 80-8 (see FIGS. 10 and 11).

Reference numeral 82 in FIG. 10 denotes the horizontal frame, which is near the boundary between the central portions 80-3 to 80-7 of the seedling mounting table 80 and the inverted portions 80-1, 2, 80-9, 10. It is separated into a central portion side 82a and inverted portion sides 82b, 82b. The attachment members 88, 88 are fixed to the left and right ends of the central portion side 82a, and the fixing members 124, 124 are provided at the inner ends of the inverted portion sides 82b, 82b so as to face the attachment members 88, 88. It is fixed. The fixing member 124 is formed with a round hole 125 penetrating left and right, and the mounting member 88 is formed with a screw hole 126 on an extension line of the round hole 125. By inserting the fixing rod 127 having a threaded end portion from the outside into the round hole 125 of the fixing member 124 and screwing the tip threaded portion thereof into the screw hole 126 of the mounting member 88, the reversing portion 80-1. 2 (or 8
0-9.10) are fixed to the central portions 80-3 to 80-8. In addition, a small diameter portion 127a is formed at an appropriate position of the fixing rod 127, and when the seedling placing table 80 is folded, the fixing rod 1 is formed.
When the screw 27 is pulled out from the screw hole 126, the small diameter portion 127
Since the tip of the knock pin 128 engages with a, the fixed rod 1
No more 27 can come out. Small diameter part 12
Since the outer wall surface of 7a is tapered, the fixing rod 127 can be pushed in. Reference numeral 129 in the figure is a spring for urging the knock pin 128 toward the fixed rod.

Reference numeral 131 in FIG. 11 denotes a horizontal pipe provided on the upper back surface of the seedling mounting table. This horizontal pipe also has central portions 80-3 to 80-8 of the seedling mounting table 80 and inverted portions 80-1, 2, 80.
It is separated into a central portion side 131a and an inverted portion side 131b in the vicinity of the boundary portion of −9 · 10. And the central part side 13
A male screw member 132 is fitted on the inner end side of the hollow portion 1a. The fixing rod 134 having the screw hole 133 formed at the tip is inserted into the lateral pipe 131 from the outside, and the screw hole 133 is formed.
By screwing the male screw member 132 into the inversion portion 80-1.2 (or 80-9.10), the central portion 80
-3 to 80-8. The mechanism for preventing the fixing rod 134 from falling out is similar to that of the fixing rod 127, and the knock pin 137 urged by the spring 136 is fixed to the fixing rod 13.
The small-diameter portion 134a of No. 4 is engaged.

When the inverted portion of the seedling table is expanded, the vertical seedling feeders 94-1 and 94-2 of the inverted portion, the vertical seedling feeder 94-3 of the central portion, and the vertical seedling feeder 94 of the inverted portion.
-9, 94-10 and the vertical seedling feeder 94-8 in the central part are interlocked with each other (see FIG. 7). That is,
The roller driving shaft 96a-3 (96a-8) of the central portion seedling vertical feeding device 94-3 (or 94-8) has a driving arm 98 attached to an inner end portion thereof via a ratchet mechanism 99 and an outer end portion. Drive clutch body 1 with a clutch pawl
40 is attached integrally. The drive clutch body 140 includes a roller drive shaft 96a-1.
(96a-9.10) driven clutch body 14 attached to
1 is engaged. Driven clutch body 141
Is the roller drive shaft 96a-1.2 (96a-9.10)
The shaft 142 is integrally rotated and slidable in the axial direction, and is further urged by the spring 142 on the shaft end side. Therefore, when both clutch bodies 1441 are connected, even if both clutch pawls abut each other, the driven clutch body 141
Since the 1 can escape, both clutch bodies 140, 1
Even if the phases of 41 are not in phase, they can be connected without difficulty, and a quick bite state is achieved.

Further, in the rice transplanter, the widest member in the left-right direction is the support rail 83, so that the support rail 83 can also be bent at its end portion to shorten the entire width. The structure of the bent portion is as shown in FIGS.

That is, the support rails 83 are
The central portion 8 at a position near the outside of the second seedling dividing ports 90, 90
3a is separated into bent portions 83b and 83b at the ends, and both portions 83a and 83b are connected via a core material 150. The end portion of the core member 150 on the central portion side is rotatably attached to the central portion 83a by the support shaft 151, and the pin 152 provided on the end portion on the bent portion side is the support shaft 15
1. An elongated hole 153 of a rotating plate 153 rotatably provided in
Is loosely fitted into. Further, the central portion 83a and the bent portion 83b are pulled by the spring 154 in the direction to pull each other.

When the support rail 83 is extended, the center portion 83a and the bent portion 83b are aligned by the core material 150, and both portions 83a and 83b are located on a straight line. At this time, the bent portion 83a has the spring 15
4, the pin 152 is engaged with the inner end portion of the slot 153. From this state, the bent portion 83b is pulled outward by a slight amount against the force of the spring 154, and the bent portion 83a is pivoted forward around the support shaft 151 along the inclination of the seedling stand 80. The bent portion 83b is perpendicular to the central portion 83a. In this state, the bent portion 83b is pulled inward by the spring 154 and is stable.

The seedling removal amount adjusting rod 107, like the support rail 83, has a central portion 107a and a bent portion 1.
It is separated into 07b and 107b, and the bent portion 1
07b and 107b are bent upward.

Although rail guards 156 and 156 for protecting the front of the left and right ends of the support rail 83 are provided, the rail guards 156 and 156 are attached to the planted transmission cases 62-1 and 62-6. Therefore, it is removed together with the separating parts B and B of the transmission case. The rail guides 156 and 156 are configured to be folded in order to reduce the storage space of the separating portions B of the transmission case.

The planting device 160 comprises the planting device mounting shaft 6 described above.
The rotating case 161 is connected to the rotary case 4 and the pair of planting tools 162 and 162 attached to both ends of the rotating case. The transmission mechanism in the rotating case 161 causes the planting tools 162, 162 to rotate in a direction opposite to the rotating direction of the rotating case 161, and the tip of a fork-shaped seedling separating device (not shown) fixed to the planting device is vertically deformed. Operates to draw an elliptical closed trajectory. As a result, the seedling separating tool of the planting device 162, ... Separates and holds the seedling supplied to the seedling dividing port 90, ... Of the seedling mounting table 80, and plant it in a field scene.

Under the seedling planting work machine 4, ground leveling floats 170-1 to 170-6 are provided. Each float 170, ... Is swingably attached to the rear end of the float support arm 171, ... by a pivot shaft 172 ,. Can be received at the ground. When the aircraft is advanced with the float grounded, the float slides while leveling the mud. Each float 170, ... has a planting device 160 ,.
According to, for example, the float 170-1 is a planting article PL1 and the float 170-2 is a planting article PL2.
Level PL3.

The float support pipe 173, to which the float support arms 171, ... Are fixed, has a portion 173a provided below the planted transmission cases 62-2 to 62-4,
The planted transmission cases 62-1 and 62-6 are separated into parts 173b and 170b provided on the lower side.
73a, 173b, 173b are couplers 174, 174
Are linked by. Therefore, the planted transmission case 62
When the separating portions B, B such as -1, 62-6 are removed, the float support pipes 173b, 173b are separated from the portion 173a, and the floats 170-1, 170-6 are also separated together with the separating portions B, B. Come off.

In addition, the floats 170-3 and 17 in the central portion
Reference numeral 0-4 is also a sensor float for detecting irregularities in the field scene, both floats are provided so as to move up and down integrally, and the hydraulic valve 58 is operated according to the up and down movement. That is, when the sensor float moves upward, the hydraulic valve 58 is operated in the direction to extend the hydraulic cylinder 56,
On the contrary, when the sensor float moves downward, the hydraulic valve 58 is operated in the direction of contracting the hydraulic cylinder 56.

The fertilizer applicator 5 includes a fertilizer hopper 190 which is commonly used for storing fertilizers, a feeding device 191, which sequentially feeds the fertilizer in the fertilizer hopper 190 downward by rotation of a feeding roll (not shown), and a farm field. The fertilizer hopper 192, which is provided so as to face the seedling planting groove, and the flexible fertilizer hose 193, which connects the feeding device 191, and the fertilizer hopper 192 ,. The fertilizer application hopper 19 feeds the fertilizer fed out from the feeding device 191 ,.
It is designed to be transported to 2, ... Of these, the fertilizer hopper 190, ..., the feeding device 191, ..., and the blower 194
Is attached to the fertilization frame 195 which is provided above the main step rear portion 45a. Further, the lower part of the fertilizer application hoses 193, ...
It is supported by a fertilizer application hose support frame 197 fixed to ˜62-4. This fertilizer hose support frame 1
Reference numeral 97 denotes the left and right end portions 197a, 19 of the transportation and storage.
7a can be inserted and stored in the main body side.

This rice transplanter has the above-mentioned structure, and has a structure for reducing the lateral width of the machine body when not in operation. For example, when the rice transplanter is loaded onto a truck after the seedling planting work is completed, the lateral width of the aircraft is reduced in the following order.

First, the inverted portion 80-1 of the seedling table 80-1.
Fold 2,80-9.10 inward. When the inverted portion is folded, the extended seedling placing portion 89 of the strip is in a state of hanging downward as shown by a chain line in FIG. 1, so that the entire height is prevented from becoming too high. Next, the bent portions 83b, 83b of the support rail 83 are bent along the side surface of the seedling placing table 80 about 90 degrees forward. The bent portions 107b and 107b of the seedling removal amount adjusting rod 107 are also bent. Then, the outermost fertilization hoses 193 and 193 are extracted from the fertilization hoppers 192 and 192, and then the planted transmission cases 62-2 and 62-5 are disconnected from the connection pipes 64 and 64, and the float support pipe 173 is removed. Each part 17
3a, 173b, 173b, and the left and right separating parts B, B of the transmission case 60 are removed. The separating parts B and B include a planted transmission case 62-1 (62-6), a connecting pipe 64, a planting device 160-1 (160-10), a float 170-1 (170-6), and the like. Has been.

The detached section B is accommodated on the preliminary seedling stand support frame 200 by fitting and fixing the float support pipe 173b on the sleeve 205 provided on the support post 201 of the preliminary seedling stand 48. Since this storage position is below the seedling frame 203, ...
It is convenient because it does not get in the way when moving 5,46,46.

[0048]

As described above, the rice transplanter according to the present invention is provided with a transmission case and a planting device for a seedling planting work machine by removing the left and right outermost planting transmission cases together with the planting device. You can reduce the left and right width of the part,
Since the width of a multi-row rice transplanter such as a 10-row rice transplanter can be effectively narrowed, it is easy to transport and store that kind of rice transplanter.

[Brief description of drawings]

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

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

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

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

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

6 is a view on arrow A in FIG.

FIG. 7 is a view on arrow B in FIG.

FIG. 8 is a diagram showing a state in which the inverted portion of the seedling table is folded.

FIG. 9 is a cross-sectional view of the lower part of the seedling table.

FIG. 10 is a cross-sectional view of an upper connecting portion between a central portion and a reversal portion of the seedling placing table.

FIG. 11 is a cross-sectional view of a central connecting portion and a lower connecting portion of the inverted portion of the seedling placing table.

FIG. 12 is a view showing an end portion of a support rail.

13 is a view on arrow A in FIG.

FIG. 14 is a diagram showing an end portion of a support rail in a bent state.

FIG. 15 is a view of a connecting portion between a main body portion and a separating portion of a transmission case.

FIG. 16 is a side view of the rice transplanter in a laterally reduced width state.

FIG. 17 is a plan view of the rice transplanter in a state where the width is reduced.

[Explanation of symbols]

 A transmission case main body section B transmission case separation section 1 rice transplanter 2 traveling vehicle body 3 lifting link device 4 seedling planting work machine 5 fertilizer application 60 transmission case 62 planting transmission case 70 planting main spindle 72 chain (transmission means) 80 seedling mounting Platform 83 Support rail 160 Planting device 170 Float

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Takashi Suzuki, No. 1 Yakura, Tobe, Iyo-gun, Ehime Prefectural Engineering Department, Iseki Agricultural Machinery Co., Ltd. Department

Claims (1)

[Claims] 1. A rice transplanter for transmitting rotation of a planting spindle provided in a lateral direction in a transmission case main body to a planting device through a transmission means in a planting transmission case provided in a front-rear direction,
When the number of planting lines is an even number n, the planting transmission cases are provided in parallel on the left and right (n / 2 + 1), and the left and right sides of the middle planting transmission case excluding the left and right outermost planting transmission cases. One set of planting devices is provided for each of the left and right outermost planting transmission cases, and one set of planting devices is provided on the outer side of each of the left and right outermost planting transmission cases. A rice transplanter characterized by being removable from the main body of the transmission case.