JP2002209407A - Method for transplanting seedling and apparatus therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for transplanting seedlings, in which application efficiency to previously applied application row is high. SOLUTION: This apparatus for transplanting seedlings comprises a fertilizer applicator for forming application rows along levee in an adequate depth and a seedling transplanter for transplanting seedlings into the levee, and a transplanting hole-forming means for forming transplanting holes so as to longitudinally divide the application rows is provided in the seedling transplanter. The apparatus for transplanting seedlings is constituted so as to feed seedlings into holes for transplantation. Moreover, the means for forming the transplanting holes is constituted so as to utilize opening and closing action of beak-like seedling transplanting tool of seedling transplanting means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling transplanting method and a seedling transplanting apparatus, and aims to realize a seedling transplanting method having a high application efficiency to a pre-fertilized fertilizing strip.

[0002]

2. Description of the Related Art Conventionally, pasty fertilizers have been applied along ridges. However, depending on the positional relationship with the seedlings, so-called fertilizers and burns are not preferred. For this reason, there is a configuration in which paste-like fertilizer is intermittently fertilized and a seedling is to be transplanted to a non-fertilized portion which is separated from the front and rear in the fertilization state (Japanese Patent Laid-Open No. 8-191).
617).

[0003]

However, in the above configuration, since the fertilizer is transplanted to the non-fertilized part of the fertilizer strip intermittently applied before and after, the distance between the fertilization position and the seedling position is not constant and the effect is not achieved. It causes unevenness and makes it difficult to reach every flight. In addition, when the fertilizing operation and the seedling transplanting operation are performed separately, the progress trajectory of each progressing machine frame is not constant, so that the seedling planting position with respect to the fertilizing strip is likely to be out of order, and the effect unevenness is even greater. In addition, a seedling-planting machine that also serves as fertilizer must be configured, which complicates the configuration.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned drawbacks, and has taken the following technical means. That is, the invention according to claim 1 is a method of transplanting seedlings to a ridge by a seedling transplanting means, and after forming a fertilizing strip along the ridge at an appropriate depth in the ridge by the fertilizing means,
A method for transplanting seedlings is characterized in that a transplanting hole is formed so as to divide the fertilization strip back and forth, and a seedling is supplied to the transplanting hole.

[0005] Further, the invention according to claim 2 provides a fertilizing device for forming a fertilizing strip along a ridge of an appropriate depth.
A seedling transplanting device for transplanting seedlings in the ridges, the seedling transplanting device is provided with a transplanting hole forming means for forming a transplanting hole so as to cut the fertilization strip back and forth, and configured to supply the seedlings to the transplanting hole. The configuration of a seedling transplantation device characterized by having done this.

The transplanting hole forming means utilizes the opening and closing action of a beak-shaped seedling attachment of the seedling transplanting means.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an agricultural tractor having front and rear wheels 2, 2 and rear wheels 3, 3 at the front and rear portions of the fuselage, and an engine 5 mounted inside a hood 4.

The output from the engine 5 is transmitted into a transmission case 6, and the left and right rear wheels 3, 3 are driven via a main speed change mechanism, a sub speed change mechanism, and a differential mechanism in the case 6. Further, power is transmitted to a power take-out shaft 7 protruding from a rear portion of the transmission case 6. In addition,
The transmission mechanism is branched from the transmission mechanism to output front wheel power, and the front wheels 2 and 2 can be driven.

A steering handle 8 is provided at the rear of the hood 4 and a passenger seat 10 is disposed between fenders 9 and 9 covering the left and right rear wheels 3 and 3, respectively. Further, a safety frame 11 formed so as to surround the occupant space has its legs mounted and fixed to a rear axle case 13 integral with the transmission case 6.

At the rear of the transmission case 6, a rotary tilling machine 17 is mounted via a three-point link mechanism including a top link 14 and left and right lower links 15, 15. The rotary tilling machine 17 includes a lift arm 1 that rotates up and down due to expansion and contraction of a hydraulic cylinder mechanism (not shown) provided horizontally on a rear upper surface of a transmission case 6.
8 so as to be able to move up and down. The lift arm 18 and the lower link 15, 15 are interlockingly connected by lift rods 19, 19, but in the embodiment, one of them is constituted by an actuator 20 which expands and contracts, and the left and right rolling posture of the rotary tilling work machine 17 is provided. Is arbitrarily changeable. The hydraulic cylinder mechanism (not shown) is interlocked to supply and discharge pressure oil by operating a lifting lever and to rotate the lift arm 18 up and down.

A mast 21 is erected at the center of the rotary tilling machine 17 in the left and right directions, and a mounting hole 22 is formed in the mast 21 for connecting a pin to a rear end link ball portion of the top link 14. I have. The link balls at the rear ends of the lower links 15, 15 are pin-connected to left and right supporting frames 24, 24 provided at appropriate intervals in the left and right directions from the frame 23 of the rotary tilling machine 17. The rotary tilling device 17 has a tilling shaft 25 suspended in a horizontal posture, and a plurality of tilling claws 26, 26,. .

Reference numeral 27 denotes an input shaft which is configured to rotate the tilling shaft 25 to the power take-out shaft 7 via a universal joint shaft 28 and the like. At the rear upper part of the rotary tilling device 17, the front side of the lifting support frame 30 is pivotally supported so that the rear part swings up and down by forward and reverse rotation of the adjustment handle 29. The rear end of the lifting frame 30 is formed in a U-shaped mounting hitch 31 in a side view.
A ridge device 32 and a film laying device 33 are mounted on this via a connection support frame 34.

That is, the ridge device 32 is provided with three known ridge devices 35 on the left and right sides, and a toolbar for connecting the hanging portions 34a, 34a hanging from the left and right ends of the connection support frame 34. 36 are provided at predetermined intervals at the center, left and right, respectively. Therefore, two rows of ridges can be formed in the outward travel of the field. The toolbar 36 is configured to support a gauge wheel 37 for maintaining the ridge 35 at a predetermined attitude or depth with respect to the ground. The vertical adjustment of the gauge wheel 37 with respect to the ridger 35 can be performed by an adjusting means (not shown).

A film laying device 33 is provided behind the ridge device 32. This laying device 33 includes a film roll 39 for winding a multi-film 38 to be laid at the front of the device,
Soil transfer including triple shooters 43 for dropping tilling soil in the center and left and right valleys 42 of the two forming ridges 40 to suppress the rise of the multi-film 38 so as to suppress the rise of the multi-film 38. And the like. The lifting frame 3
A swing frame 47 is mounted on a base member 46 pivotally attached to the mounting hitch 31 and the like so as to be able to move left and right and formed with a plurality of fixing holes 45.
Reference numeral 7 denotes a structure which can be fixed not only in the left and right center positions but also in the left or right offset state by inserting the fixing pins 48. The frame 47 is provided with the laying work sections such as the film roll 39, the pressure reduction wheel 41, and the soil transfer section 44. Installing. In addition, since the parallel link is configured by the sub-frame 49 in parallel with the swing frame 47, these laying sections can maintain a forward-facing posture even in the left-right deviation state.

The above-mentioned film roll 39 is appropriately supported by the swing frame 47 and the sub-frame 49, and a horizontal frame 50 for supporting the pressure-reducing wheel 41 is provided at the rear of the film roll 39. The soil transfer unit 44 includes a scraper-type conveyor 51 that lifts the soil,
A hopper 52 for receiving the soil, and three sets of the shooters 4 for guiding the soil flowing out of the hopper 52 after being divided into three sections.
The conveyor 51 is provided with a rotary tillage device 17 and a ridge device 32 so as to introduce cultivated soil.
, And the terminal end thereof is viewed through the opening of the hopper 52.

The work for forming the ridges 40, the work for laying a multi-film, and the work for preventing lifting due to soil are generally as follows. In other words, work is performed while reciprocating the aircraft in the field, but in the outward stroke, two ridges 40 formed in this stroke are used.
c and 40d and two ridges 40 adjacent to each other on one of the two ridges 40a and 40b formed in the previous return stroke.
The multi-film 38 is laid at the same time on the b and 40c.
The film laying device 33 is fixed so as to be deviated so as to correspond to the positions b and 40c (the left side is deviated in FIGS. 1 and 2). When it is switched to the return stroke, it is biased to the opposite side (rightward bias). In this way, the multi-film 38 has a multi-layered form covering not only the ridges 40 but also the valleys 42, and is in a state of covering the entire inner surface of the field. Thus, evaporation of the moisture and the drug in the soil in the field and the outflow of the drug due to rainfall can be prevented.

In the case of a partial mulch that covers only the swelling portion of the ridge portion 40, the flow of water and medicine from the ridge portion 42 occurs. Next, the drug injection device 53 and the fertilizer application device 54 will be described. First, the drug injection device 53
Is a chemical tank 55 containing a chemical having effects such as soil disinfection, crop pest prevention, and weed weeding, a pump 56,
The hose 57 includes a medicine injection discharge tube 58. The medicine tank 55 is mounted near the leg of the safety frame 11. It is configured to be sprayed from a discharge port 58a of a medicine injecting and discharging pipe 58 via a hose 57 by driving a pump 56 appropriately disposed.

On the other hand, the fertilizer applicator 54 is provided with a pair of left and right fertilizer tanks 60 on a front hitch 59 provided at the front of the body, and the paste-like fertilizer in each of the tanks 60, 60 is fed by a respective pump 61, 61. The fertilizer is applied from the discharge ports 63a, 63a of the fertilizer tubes 63, 63 connected to the hoses 62, 62 via the compression hoses 62, 62.

The hoses 62, 62 and fertilizer tubes 63, 63
When the rotary tilling device 17 is attached and detached, the couplers 64 and 64 are attached and detached together when the couplers 64 and 64 are detachably connected by couplers 64 and 64. The work machine can be easily attached and detached.

In the embodiment, the number of discharge ports of the fertilizing pipes 63, 63 is configured in two stages, one for each ridge, so that two ridges can be fertilized at the same time. Fertilize. By the way, the injection claw 65 holds the discharge port 58a of the discharge pipe 58 and the discharge ports 63a, 63a of the fertilization pipes 63, 63 in a predetermined vertical relationship. That is, the injection claw 65 is attached to the toolbar 36 so as to be vertically adjustable via a forward arm 66, and the discharge pipe 58 and the fertilization pipe 6 are provided on the back side of the injection claw 65.
3, 63 are detachably mounted with their respective outlets 58a, 63a facing rearward. At this time, the discharge port 58a of the discharge pipe 58 is positioned lower than the lower discharge port of the upper and lower two-stage fertilizer pipes 63, 63, and the chemicals in the ridges 40 are smaller than the fertilization depth of the pasty fertilizer. The spraying depth is set to be deeper. 67 is a fixing pin, 6
8, 68... Are clamps. The diameter of the fertilizer pipe 63 and the diameter of the discharge pipe may be substantially the same. The fertilizer pipe 63 having a small diameter can be protected from scattering of cultivated soil mass and soil resistance.

FIGS. 10 and 11 show the structure of the seedling transplanting device 68. FIG. The walking-type vegetable seedling transplanter 69 has a beak-shaped seedling planting tool 70 that opens and closes back and forth to house and hold the seedlings and plant them on the soil surface. A wedge-shaped planting hole Q that is formed in a front and rear split form, and that digs seedlings to be housed and held in the soil surface when descending
(Implantation hole forming means). The seedling planting tool 70 is raised and lowered by the planting mechanism, and is opened and closed back and forth. In this ascending position, a configuration is provided below in which the seedlings are supplied, as viewed below the seedling supply device.

That is, a cup-shaped seedling attachment 7 having a sharp lower end.
0, the seedling attachment 70 comprises a front member 70a and a rear member 70b, and is rotatably supported by a front member rotation shaft 71A located behind the seedling attachment 70. The front member 70a is integrally attached to the front member mounting arms 72A, 72A, and the rear member mounting arms 72B, 72B rotatably supported by a rear member rotation shaft 71B located in front of the seedling attachment 70. The rear side member 70b is integrally attached to the rear side. Therefore, when the two members 70a, 70b rotate around the rotation shafts 71A, 71B, the seedling attachment 70
The lower part opens and closes. The front member 70a and the rear member 70b rotate in conjunction with each other by an interlocking pin 73 that is loosely fitted in a long hole formed in the front member mounting arm 72A and the rear member mounting arm 72B. Leg 72aA of front member mounting arm 72A and leg 72aB of rear member mounting arm 72B
A spring 74 that urges the front member 70a and the rear member 70b toward the closing side is stretched between them. The seedling attachment 70 performs a predetermined operation by the following operation mechanism.

A rear link support arm 77A is rotatably attached to a support portion 88a projecting upward from the second planting transmission case 88, and a rear end of a rear link 78A having a base pivotally attached to the support arm is provided at the front end of the rear link 78A. The member rotation shaft 71A is connected. A rear link drive arm 79A provided at the rear end of the second planting transmission case 88 is connected to an intermediate portion of the rear link 78A. A front link support arm 77B is rotatably attached to the planting transmission case 89, and a rear member rotation shaft 71B is connected to a rear end of a front link 78B having a base pivotally connected to the support arm. . Previous link 7
The front link drive arm 79B provided at the rear end of the first planted transmission case 90 is connected to the intermediate portion of 8B. When the drive arms 79A and 79B are driven and rotated, the rear link 78A and the front link 78B swing up and down while changing the position of the base part back and forth, and the seedling planting tool 70 moves up and down with a constant posture. The rotational driving force of the planting transmission case 89 is transmitted in the order of the first planting transmission case 90 and the second planting transmission case 88.

An opening / closing arm 81 is provided at the base of the rear link 78A.
The opening and closing arm 81 is rotatably mounted, and the front end of the opening and closing arm 81 and the front member mounting arm 72A are connected by an opening and closing rod 82. An opening / closing cam 83 that rotates integrally with the rear link drive arm 79A is attached to an intermediate portion of the rear link 78A. A roller 84 as a cam follower for the opening / closing cam is provided on the opening / closing arm 81. The opening / closing cam 83 is engaged with the roller 84 during the process of raising the seedling attachment 70 from a position near the bottom dead center. When the opening / closing cam 83 is engaged with the roller 84, the opening / closing rod 82 is pulled, the front member 70a and the rear member 70b rotate in conjunction with each other, and the seedling mounting tool 70 is opened. When the opening / closing cam 83 does not engage with the roller 84, the seedling attachment 70 is closed by the tension of the spring 74.

When the seedling attaching tool 70 is at the top dead center, the seedlings are dropped and supplied by the seedling supply device 91. The supplied seedlings
It is guided into the seedling planting tool through a tubular seedling guide 86 attached to the front member rotating shaft 71A and the rear member rotating shaft 71B. The seedling-planting implement 70 holding the seedlings descends, and at the bottom dead center, the lower part of the seedling-planting implement 70 pierces the topsoil portion of the ridge to form a hole for seedling transplantation. Almost simultaneously with this, the seedling attachment 70
Opens to release the held seedlings into the seedling transfer holes. When the seedling mounting tool 70 rises as it is and rises to near the top dead center, the seedling mounting tool 70 closes.

The seedling planting device 69 and the seedling supply device 9
2 is a walking form having a handlebar 96 at the rear of a vehicle body 95 having a pair of left and right wheels 93, 93 and an auxiliary wheel 94 at the front, and an engine 97 mounted at the front, the wheels and the seedling transmission. In this configuration, the seedlings are planted while driving and driving the transmission mechanism in the case 89.

The operation of the above example will be described. When each part of the work machine is driven to rotate and the tractor 1 body is advanced, the soil is tilled by the rotary tilling work machine 17, and the cultivated soil is formed into two ridges by the subsequent ridge device 32. Further, the subsequent film laying device 33 is laid over the ridges 40 and the ridges 42 while pressing the multi-film 38 which is sequentially fed to the ridges, and a predetermined amount of the cultivated soil is lifted by the soil transfer unit 44 and the ridges are lifted. Multi film 38 dropped in valley 42
To prevent the floating of

During the above-mentioned tilling, furrowing and multi-working, the pump 56 of the drug injector 53 and the fertilizer applicator 54 is also driven, and the drug in the drug tank 55 is pumped and raised from the drug injection discharge pipe 58. Immediately before, it spouts out in the tilling soil that is scattering, in a scattered state. Further, at two positions (depth h) above and below the position shallower than the chemical injection depth H, the fertilizer application pipe
The fertilizer is continuously applied along the ridges 40 formed by discharging the paste-like fertilizer.

Since the above-mentioned chemical injection and fertilization are performed together with tilling, ridge raising and mulching work, this is an efficient work. However, these pre-preparation work is completed and seedling transplantation work is performed. When the unshown seedling transplanter 92 is advanced along the ridge 40,
The seedlings are sequentially transplanted at predetermined intervals along the upper fertilizing strip p1 of the fertilizing strips p in the ridge fertilized by the fertilizer device 54, and the transplanting position is set along the fertilizing strip p. Is done.

The multi-film 38 is laid on the topsoil of the ridges 40, and the fertilizer is applied to the ridges 40 in two upper and lower rows to form two fertilization strips p1 and p2.
Further, a chemical solution is injected into a position deeper than the fertilization position (m). With such preparation work, the seedling transplanter 92
Is advanced along the ridges 40, the seedling transplantation device 69 operates. That is, the seedling is received at the top dead center and descends to the bottom dead center. At the bottom dead center, the seedling planting tool 70 tears the multi-film 38 and pierces the ridge surface to form a seedling transplanting hole Q, which is opened back and forth to enlarge the seedling transplanting hole back and forth. At this time, the fertilizer application p1 on the upper side of the two upper and lower fertilizer application is
The fertilizing strip p1 is pierced by the piercing of the seedling transplant tool 70
Are divided into front and rear to form a pool, and further open back and forth, so that the division range is expanded. Therefore, the seedling soil portion of the seedling that is released from the holding of the seedling transplanting tool 70 and falls into the transplanting hole Q is
The fertilizer strips are separated from the fertilizer strips in an uncontacted state and are dropped and dropped (a in FIG. 1), and are appropriately covered with soil. For this reason, it can be planted by being isolated from the fertilizer for an appropriate period of time, so that the seedlings and seedlings are less in direct contact with the fertilizer. it can.

In the above embodiment, the planting hole Q is formed while dividing the fertilizing strip p1 back and forth using the beak-shaped seedling planting tool 70 that opens back and forth. In addition, the structure can be simplified, and the positional relationship between the seedling to be planted and the division point is constant, so that the effects of the above-mentioned fertilizers, damping and fertilizing effects can be maintained constant in any transplanted seedling.

Further, in the above embodiment, the fertilizing strip is planted at the center (FIG. 13 (a)). However, as shown in FIG. Good. In this case, the concentration disturbance caused by the fertilizer can be further reduced. Further, in the above embodiment, the seedling transplantation work is performed by preparing in advance such as fertilizing along with the ridge work and the film laying work, but the seedling is directly planted on the fertilized ridge without performing the film laying work. Even in this case, the same effect can be realized, and a fertilizer application device may be provided in the seedling transplanter so that fertilization and seedling transplantation can be performed simultaneously so that the seedling transplantation operation can be performed together with the fertilization operation.

The injected drug permeates around the ridges while diffusing, and is used for soil disinfection, prevention of pests and pests of the above-mentioned crops, weed weeding, and the like. On the other hand, the fertilized paste fertilizer is absorbed from the roots of the seedlings of the nearby seedlings. Since the chemicals for soil disinfection and prevention of pests on crops are squirted into the position H deeper than the fertilization position, the influence of the chemicals on the shoots is reduced, and the fertilizer does not hinder the fertilizing effect on the shoots.

In the above embodiment, the vertical position of the fertilizing strip p1 can be arbitrarily adjusted by adjusting the position of the discharge port 63a with respect to the injection claw 65. Appropriate fertilization depth can be set.

[0035]

According to the first aspect of the present invention, there is provided a method for transplanting seedlings to a ridge by means of seedling transplantation, wherein a fertilizing strip is formed at an appropriate depth in the ridge along the ridge by means of fertilizer. Later, to form a hole for transplantation to cut the fertilizer strips back and forth,
Since the method is to supply seedlings to the transplanting holes, the seedlings can be planted at an appropriate interval from the fertilizing strip, reducing direct contact with the fertilizer part, and preventing so-called fertilizer burns that occur when the fertilizer concentration is high. At the same time, appropriate fertilizing effect can be maintained.

[0036] Further, the invention according to claim 2 provides a fertilizing apparatus for forming a fertilizing strip along a ridge having an appropriate depth.
A seedling transplanting device for transplanting seedlings in the ridges, the seedling transplanting device is provided with a transplanting hole forming means for forming a transplanting hole so as to cut the fertilization strip back and forth, and configured to supply the seedlings to the transplanting hole. Thus, the seedlings can be planted at an appropriate distance from the fertilizing strip and not in direct contact with the fertilizer portion, and the fertilizer can be prevented from being burnt and the appropriate fertilizing effect can be maintained.

Since the transplanting hole forming means utilizes the opening and closing action of the beak-shaped seedling planting tool of the seedling transplanting means, the structure can be simplified without requiring any special dividing mechanism. At the same time, since the positional relationship between the seedling to be planted and the division point is constant, the effects of the above-mentioned fertilizers, damping and fertilizing effects can be maintained in any transplanted seedling.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a row showing an operation state.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of a working unit.

FIG. 4 is a side view of a working unit.

FIG. 5 is a rear view of the working unit.

FIG. 6 is an explanatory diagram of an operation of laying a film.

FIG. 7 is an explanatory diagram of the operation of fertilization / chemical injection.

FIG. 8 is a side view of a main part.

FIG. 9 is a rear view of a main part.

FIG. 10 is an overall side view of the transplanter.

FIG. 11 is a side view of a main part of the transplantation device.

FIG. 12 is an overall side view of the transplanter.

FIG. 13 is a plan view showing a transplant operation.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Agricultural tractor, 2 ... Front wheel, 3 ... Rear wheel, 17 ... Rotary tilling work machine, 32 ... Ridging device, 33 ... Film laying device, 38 ... Multi-film, 40 ... Ridge, 42 ... Valley part, 5
3 ... Drug injection device, 54 ... Fertilizer application device, 55 ... Drug tank, 58 ... Discharge tube, 60 ... Fertilizer tank, 63 ... Fertilizer application tube,
69: seedling transplantation device, 70: seedling planting tool

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Isao Ishida 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. F-term (reference) 2B060 AB01 AB10 AC01 AE03 BA03 BA04 BA09 BB01 BB02 BB09 CC05

Claims (3)

[Claims] 1. A method for transplanting seedlings to a ridge by means of seedling transplanting means, wherein fertilizing means are formed at an appropriate depth in the ridge along the ridge by fertilizing means, and the fertilizing strip is divided into front and rear parts. A method for transplanting seedlings, comprising forming a transplantation hole and supplying a seedling to the transplantation hole. 2. A fertilizer applying device that forms a fertilizing strip along a ridge of an appropriate depth and a seedling transplanting device that transplants a seedling into the ridge. A seedling transplantation device, comprising: a transplantation hole forming means for forming a transplantation hole so as to supply a seedling to the transplantation hole. 3. The seedling transplanting device according to claim 2, wherein the transplanting hole forming means uses a switching action of a beak-shaped seedling planting tool of the seedling transplanting means.