JP2003210009A - Vegetable transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vegetable transplanter constituted so as to charge a seedling 26 from a seedling feed part 7 installed in a machine body frame 2 into a transplantation claw 51 and move the transplantation claw 51 to the surface of a field 25 to carry out transplantation of the seedling and cover and pack soil by a covering wheel 22 provided on the backside, in which soil- covering and packing performance in the vegetable transplanter carrying out multiple row plantation is improved by attaching the covering wheel 22 to the machine body so as to ground the wheel 22 to the surface of the field 25 in a nearly same grounding pressure and transplantation of the seedling is carried out in an adequate posture by carrying out covering and packing of the soil by the covering wheel 22 in a state in which the seedling 26 is nearly straightly raised. <P>SOLUTION: In this vegetable transplanter, the covering wheel 22 is supported to the machine body frame 2 so as to enable free left and right inclination and guide members 101 for supporting the seedling 26 dropped to the surface of the field 25 from right and left both sides and guiding the seedling 26 to a space between a pair of left and right covering wheels 22 is installed. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is to insert seedlings into a transplant nail from a seedling supply section, move the transplant nail to a field scene, open the transplant nail, and drop the seedling to the field scene to cover soil. The present invention relates to a vegetable transplanter which is covered with a ring and transplanted.

[0002]

2. Description of the Related Art Conventionally, the soil cover ring of a vegetable transplanter is composed of a pair of left and right parts, and when it is multi-row planting, the height is aligned with the machine frame by the number of transplanted lines through the earth cover frame. They were placed side by side.

[0003]

However, since the upper surface of the ridge in the field where the seedlings are transplanted is formed in a mountain shape so as to decrease from the central portion toward the end portion, the drainage is improved, and therefore the ridge end is reduced. The lower the soil pressure on the side of the soil cover, the more the slope of the ridge is steep, and the soil ring on the side of the ridge floats up from the ridge surface. There was a problem that could not be done. In addition, when the seedlings dropped and released from the transplanted nails harden left and right due to the inclination of the field scene (ridge), or in the case of lightweight seedlings that do not have a root pot such as onion seedlings, they also warp left and right even in the wind. However, in the past, the soil-covering wheel also had a problem that the seedlings were squeezed (planted) when the seedlings were tilted. Therefore, the present invention intends to improve the soil cover suppression performance in a multi-row planting machine by attaching a soil cover ring to the machine body so that it can be grounded at substantially the same ground pressure in the field scene. Further, according to the present invention, in a state where the seedlings are erected in a substantially straight state, the soil covering is suppressed by a soil covering wheel so that the seedlings can be transplanted in an appropriate posture.

[0004]

The problem to be solved by the present invention is as described above, and the means for solving this problem will be described below. In claim 1, seedlings are put into the transplant nails from the seedling supply unit provided in the machine frame, the transplant nails are moved to the field scene and transplanted, and the soil cover is provided by the soil cover wheel provided behind them. In a vegetable transplanter, a soil cover wheel is supported by a body frame so that it can be tilted left and right.

Further, according to a second aspect of the present invention, the earth covering wheel is supported so as to be tiltable left and right with respect to the frame that is supported by the machine body frame so as to be able to move up and down.

[0006] According to a third aspect of the present invention, seedlings are put into a transplant nail from a seedling supply section provided on a machine frame, the transplant nail is moved to a field scene and transplanted, and a soil-covering ring provided behind it. In the vegetable transplanter for suppressing soil cover, a guide member is provided for supporting seedlings dropped in the field from both left and right sides and guiding them between a pair of left and right soil cover wheels.

Further, in claim 4, the guide member is made to act on the leaf portion of the seedling.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Next, embodiments of the present invention will be described. 1 is a side view showing an overall configuration of a walk-behind vegetable transplanter according to an embodiment of the present invention, FIG. 2 is a plan view of the same, FIG. 3 is a side view of a machine frame and a mission case, and FIG. FIG. 5 is a plan view of the seedling supply section, FIG. 6 is a plan view of the seedling carrier table section, FIG. 7 is a rear sectional view of the inheritance section, FIG. 8 is the same plan view, and FIG. FIG. 10 is an enlarged cross-sectional view, FIG. 11 is an enlarged cross-sectional view, FIG. 11 is an enlarged plan view, FIG. 12 is a rear view of the transplanting portion, FIG. 13 is a side sectional view of the same, FIG. FIG. 16 is a side view of the nail, and FIG. 16 is a side view of the transplanted nail showing a modified example of the opening / closing cam.
17 is a side view of the soil-covering wheel support portion, FIG. 18 is a rear view of the soil-covering wheel portion, FIG. 19 is an enlarged rear view of the same, FIG. 20 is an enlarged side view of the same, FIG. 21 is a plan view of the same, and FIG. 23 is a side view of the irrigation device, and FIG. 24 is a plan view of the same.

The walking type vegetable transplanter for onion according to one embodiment of the present invention will be described from the overall configuration. 1 and 2
In the vegetable transplanter 1, the engine 3 is mounted on the front part of the machine frame 2, the traveling mission case 4 and the planting mission case 5 are arranged on the front and rear central parts, and the handle is provided from the rear part of the machine frame 2 to the rear. The handle frames 6 as members are continuously arranged in the horizontal direction, and the handle frames 6
Place the seedling supply part 7 on the middle part of the handle frame 6
The rear part is used as the driving operation part 9.

A front wheel support shaft 10 is laterally mounted on the front portion of the machine body frame 2, one end of the front wheel support frame 11 is attached to both sides of the front wheel support shaft 10, and the other end of the front wheel support frame 11 11 is attached. It supports the front wheels 12 and 12. In addition, the rotation support shafts 13 and 14 are provided from the middle of the body frame 2.
And the rear drive shaft 15 from the traveling mission case 4
Is horizontally projected, and drive cases 16 and 16 are continuously provided on both sides of the rear wheel drive shaft 15 so that the drive cases 16 and 1
The rear wheel 17 is supported at the end of 6. The front wheel support frame 11 and the drive case 16 are connected via a link mechanism, and the drive case 16 is connected via a hydraulic cylinder 19 provided at the lower portion of the machine body frame 2 and the link mechanism.
The front wheel support frame 11 and the drive case 16 are rotated around the front wheel support shaft 10 and the rear wheel drive shaft 15 by expanding and contracting the hydraulic cylinder 19 so that the machine body can be moved up and down.

The transplanting section 20 is arranged below the seedling supplying section 7 between the rear frames 2b, 2b, which will be described later, at the rear of the planting mission case 5, and the rear frames 2b, 2b.
In addition to being protected by b, the transplanting part 20 moves up and down the transplanting claw 51 to receive the seedling 26 from the seedling supplying part 7 at the upper end position, and the tip part of the transplanting claw 51 at the lower end position on the field 25 surface (ridge surface). Puncture it to open a transplant hole, and insert the transplant nail 51 into the transplant hole.
Is opened to drop the seedlings 26, and the soil-covering ring 22 arranged behind the seedlings 26 brings the soil to the root of the seedlings 26 to cover and suppress the soil for transplantation.

Next, the structure of each part will be described. First, a chassis that supports the traveling unit and the planting unit will be described. As shown in FIGS. 3 and 4, the chassis connects the machine body frame 2, the traveling mission case 4 and the planting mission case 5 that are connected to the machine body frame 2, and connects the traveling mission case 4 and the planting mission case 5. It is composed of a connecting plate 30 serving as a connecting member and a handle frame 6 for connecting the planting mission case 5 and the machine body frame 2, and by connecting and fixing each of them, a reinforcing member is not required to reinforce each other to enhance rigidity. .

The machine body frame 2 is formed in a substantially inverted "V" shape in a side view, and the machine body frame 2 is composed of a front frame 2a and a rear frame 2b, which are connected to each other at a substantially front and rear central portion, and the front frame 2a. Has a plate-like configuration, and the engine 3 is placed and fixed on the front portion thereof, and the traveling mission case 4 is placed and fixed on the rear portion thereof via the stay 2c. The rear frame 2b is formed in a plane view Π shape in which pipes are extended rearward from both the left and right sides of the horizontal frame 2d, and the rear end of the front frame 2a is fixed to the horizontal frame 2d in the horizontal direction of the front portion. There is. Middle pillar 2e from above and behind the left rear frame 2b
Is erected. Further, the rotation fulcrum shaft 13 is supported at the rear portion of the front frame 2a so as to project laterally, the rotation fulcrum shaft 14 is supported on the extension of the horizontal frame 2d, and the rear wheel drive shafts 15 are provided at the lower part of the traveling mission case 4, respectively. It is supported parallel to the left and right horizontal directions.

Then, the left and right centerlines of the front frame 2a in the front-rear direction are set as the centerlines of the traveling portion (machine body), and the rotation support shafts 13 are eccentric to the left and right sides (the left side in the traveling direction in this embodiment).
When the vegetable transplanter 1 travels across the ridges 25 with the rear wheel drive shaft 14 and the rear wheel drive shaft 15 extending laterally, the traveling part is displaced to the left or right side and travels as described later. On the return path, two rows on each side (1st and 2nd rows on the outward path and 3rd and 4th rows on the return path) can be transplanted. The left and right front wheels 12 and 12 and the rear wheels 17 and 17 can be adjusted in the left and right position (wheel distance) according to the shape and width of the ridge 25.

As shown in FIGS. 2 and 3, the front portion of the handle frame 6 is connected to the rear portion of the rear frame 2b and the upper portion of the center pillar 2e, and the front portion of the handle frame 6 is planted in the mission case 5. It is connected to the upper part, supports the seedling supply part 7 and the left and right seedling mounts 31, 31 on the middle part in the front and rear, and arranges the raising and lowering lever 32, the main clutch lever 33, the operation lever such as the accelerator lever and the side clutch lever on the rear part. is doing.

The handle frame 6 is composed of a right frame 6R, a middle frame 6M, and a left frame 6L in a plan view "E" shape. The planting mission case 5 is supported and fixed between the front portions of the right frame 6R and the middle frame 6M. A connecting plate 34 is installed between the front and rear intermediate portions, and the rear end upper portion of the right rear frame 2b is fixedly mounted on the lower surface of the connecting plate 34. In this way, the three members are connected and fixed to each other to improve the rigidity. A drive case for the seedling supply unit 7 is attached to the lower portion of the connection plate 34.

A reinforcing pipe 6a is connected between the middle frame 6M and the left frame 6L in the middle of the front and rear, and the upper end of the middle pillar 2e is connected and fixed to the lower surface of the front part of the left frame 6L. In this way, the right frame 6R and the middle frame 6M
The rigidity is improved by connecting and fixing between the left frame 6L and the left frame 6L. In addition, the right seedling mount frame 35 is provided so as to project obliquely to the front right from the front-rear halfway portion of the right frame 6R.
1 attached, left seedling stand frame 3 from left frame 6L
The seedling mounting table 31 is attached by projecting 6 in a diagonally forward left direction substantially parallel to the right seedling mounting table frame 35.

In the present embodiment, the main operator 23 is located behind the rear wheel 17 on the side of the handle frame 6 on the right side of the machine body (obliquely rearward of the seedling supply section 7), and the handle frame 6 on the left side of the machine body is located.
The auxiliary worker 24 is located behind the rear wheel 17 on the side (obliquely left behind the seedling supply unit 7), or in the case of one person working, only the right side of the machine is located, and the main worker 23 operates the operation lever. At the same time, the seedling 26 is taken from the seedling mounting table 31 and the seedling supplying section 7
The seedlings 26 are inserted one by one (or by a predetermined number) into each seedling transport pot 40. The auxiliary worker 24 inserts the seedling 26 into the seedling carrying pot 40 which the main worker 23 could not insert into the seedling carrying pot 40, and complements it.

The traveling mission case 4 and the planting mission case 5 are arranged side by side in the vertical direction in front of and behind the center of the machine body, and connecting plates 30 are attached to the left and right sides of the traveling mission case 4 and the planting mission case 5, respectively. Then, the two cases are connected to form an integral structure. Then, as described above, the traveling mission case 4 is fixedly installed on the rear portion of the front frame 2a, and the rear frame 2b
The upper part of the planting mission case 5 is fixed to the upper part through the handle frame 6. In this way, in a side view, by connecting and fixing the upper part of the central concave portion where the body frame 2 is bent in an inverted "V" shape by the traveling mission case 4, the planting mission case 5 and the connecting plate 30, It is possible to form a triangle in a side view and increase rigidity.

Here, in the body frame of the conventional vegetable transplanter, the engine is fixed to the front part of the main transmission case, the left and right frames are fixed to the rear part of the main transmission case, and the engine is fixed to the rear of one side of the left and right frames. Since the main frame was extended and the handle was provided at the rear part of the main frame, and the main frame was arranged so as to be biased to the left and right sides, the rigidity was insufficient to support the transplantation device, and the frame was arranged on only one side. Therefore, the structure is weak against twisting and the like, but as is clear from the above, the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided on the machine body frame 2, and the transplanting is performed. In the vegetable transplanter for moving the claws 51 onto the farm field 25 and transplanting them, the machine body frame 2 is formed in a substantially inverted "F" shape in a side view, which is bent at the approximate front and rear center, and the mission cases 4 and 5 are provided above the bent portions. On Having arranged in a direction, it was possible to increase the rigidity of the bent portion by the connecting of the transmission case 4, 5 and the body frame 2. Further, since the reinforcing member is unnecessary, the cost can be reduced.

The mission case comprises a traveling mission case 4 and a planting mission case 5,
Since both mission cases are connected by the connecting member 30, the mission cases 4 and 5 can be firmly connected to each other to improve rigidity, and the mission cases 4 and 5 can be used as a structure of the body frame 2. I was able to.

The front side of the bent portion of the machine body frame 2 is a front frame 2a, and the rear side thereof is a rear frame 2b.
Since the front frame 2a and the rear frame 2b are connected by the mission cases 4 and 5, the front frame 2a and the rear frame 2 are connected.
The b and the mission cases 4 and 5 were firmly connected to each other to improve the rigidity.

The engine 3 is mounted on the front frame 2a.
On the rear frame 2b and the mission case 4.
Since the handle member 6 is attached to the upper part of the 5, the rear frame 2b, the transmission cases 4 and 5 and the handle member 6 form a triangle, and the rigidity can be increased, and it is sufficient for the load caused by pushing down the handle 6. A strong strength was obtained.

Next, the seedling supply section 7 will be described with reference to FIGS. 2, 5, 6, 7, 8, 9, 10 and 11.
As shown in FIG. 2 and FIG. 6, a plan view U from the middle part of the left frame 6L to the auxiliary worker 24 side (the side opposite to the center of the machine body)
A character-shaped support frame 37 is provided so as to project horizontally, and the support frame 37 and the handle frame 6 are provided on the front and rear midway parts.
A seedling carrier 39 having a plate body in an oval shape (long ring shape) is fixed substantially horizontally.

Then, as shown in FIGS. 2, 5, and 6,
A drive sprocket 41 is rotatably supported on a connecting plate 34, and a driven sprocket 42 is rotatably supported on a support frame 37. A seedling conveying pot 40 is wound around the drive sprocket 41 and the driven sprocket 42 in a chain. It has been turned. Power is transmitted to the drive sprocket 41 from the planting mission case 5 via a transmission mechanism such as a chain. The seedling supply unit 7 is configured in this way.

In this way, the seedling carrier 39 is extended to the wheel (front wheel 12 / rear wheel 17) side deviated from the center of the machine body, so that the seedling supply section 7 is arranged so as to straddle the ridge 25. In the case of two-row planting, the width of the four-row planting will be crossed, and
Both the main operator 23 and the auxiliary work 24 located on both sides of the seedling 26 face the seedling supply part 7 and take the seedlings 26 from the seedling placing table 31 to supply the seedlings 26 to the seedling transfer pot 40.
Then, the drive sprocket 41 is arranged on the side of the traveling section where the main worker 23 is located to drive the seedling supply section 7, so that the drive transmission path from the planting mission case 5 is short and the transmission mechanism can be made compact. I am trying. In addition, by forming the 40 seedlings transporting pots in an oval shape, a straight line portion in the front-rear direction (or a substantially straight line portion in an arc shape) is formed.
Can be configured, and the transfer distance in the left-right direction can be increased to increase the time for inserting the seedlings 26 and the time for supplying the seedlings to prevent the insertion omission and transplanting. By making the timing faster than before, the porting efficiency can be improved. Although the seedlings are conveyed in an oval shape in the present embodiment, at least the straight line portions may be provided in the seedling supplying section 7 and a succeeding section 50, which will be described later, and may be formed in a triangular shape or a quadrangular shape or a polygonal shape. Is also possible.

As shown in FIGS. 7, 8, 9, 10, and 11, the seedling carrying pot 40 has a funnel shape in which the upper part of the cylindrical body is expanded, and the seedling 26 is inserted from above. The shape is easy. A connecting plate 43 is provided around the lower part of the seedling transfer pot 40.
Are diametrically extended and horizontally fixed, and the connecting plate 4
Connection plate 43 of seedling transfer pot 40 in which the end portions of 3 are adjacent to each other
And a pivot pin 44 rotatably and pivotally connected to each other, and the seedling transport pot 40, a connecting plate 43, and a pivot pin 44 are connected in a chain form to form an endless body, which does not require a chain or the like and has a simple structure. I am trying. And the seedling carrying pot 4
In this embodiment, the outer peripheral surfaces of the drive sprocket 41 and the driven sprocket 42 are brought into contact with the side surfaces of the upper and lower midpoints of 0. The seedlings are transported to the side. As shown in FIGS. 1 and 3, the driving sprocket 41 and the driven sprocket 42 are arranged in a plurality of upper and lower pieces (two pieces in this embodiment), and are stably brought into contact with the upper and lower midway portions of the seedling transfer pot 40. It can be transported. However, by fixing the seedling transfer pot 40 directly to an endless body such as a chain or belt,
It is also possible to adopt a configuration in which a chain or a belt is rotationally driven.

One side of the plate-like lid 45 is pivotally supported by a fulcrum pin 46 on the lower part of one side of the connecting plate 43 (preferably the front part in the carrying direction), and the upper surface of the other side of the lid 45 is mentioned above. The lower surface of the seedling transport pot 40 is covered. In other words, it is a shutter. A roller 47 is rotatably supported on one of the left and right sides of the lower surface of the other side of the lid 45 so as to roll on the seedling carrier 39. The rollers 47 are attached to each of the seedling transfer pots 40, and the rollers 47 are arranged alternately in the left and right with respect to the transfer direction.
That is, in one seedling supply unit 7, a large number of connected seedling transport pots 40, ... Are set to even numbers, and the seedling transport pots 40 located at odd numbers are numbered in order.
In the seedling transfer pot 40 located at an even number, rollers 47 are alternately arranged on the left and right sides with respect to the transfer direction. In other words, the odd-numbered (or even-numbered) rollers 47 are arranged on the inner circumferential side, and the even-numbered (or odd-numbered) rollers 47 are
Are arranged on the outer peripheral side.

The seedling carrier 39 is mounted on the roller 4
7 plays the role of a rolling rail, and in the path along which the rollers 47 of the seedling carrier 39 roll, the inheritance portion 50, that is, the opening (or the opening on the front side of the seedling carrier 39 above the machine body). (Notches) 39a and 39b are arranged side by side with the left and right front and rear positions shifted, and the roller 4 is inserted at the openings 39a and 39b.
There is no support for 7 and the lid 4 is centered around the fulcrum pin 46.
5 is rotated downward to open the lower part of the seedling carrying pot 40 so that the seedling 26 is dropped onto the transplanting section 20.

That is, the oval seedling carrier 3 which is long in the left-right direction
The openings 39a and 39b are opened along the transfer direction in the movement locus of the seedling transfer pot 40 on the right side of the front part of the opening 9.
9a and 39b are made larger than the bottom area of the seedling transfer pot 40 so that the seedlings 26 can be dropped, and the connected seedling transfer pots 40 are separated by 3 pitches or 5 pitches (odd pitch) from the transfer direction. The openings are provided at the positions, and this interval is adjusted to the line width (line interval). One of the left and right sides with respect to the traveling direction and the other side with the right and left sides of the other side are aligned so that the rollers 47 fall, respectively, and a large opening is opened laterally. The seedlings 26 are dropped by spreading the seedlings slightly from the bottom surface (the lid 45 can be rotated downward), but the rollers 47 attached to the seedling transport pots 40 that are adjacent to the front and rear in the traveling direction are prevented from falling. That is, the openings 39a.3
9b is opened to the left and right opposite sides with respect to the center line of the seedling transfer pot 40 in the transfer direction.

Then, at the position where the roller 47 on the terminal side in the traveling direction passes in the openings 39a and 39b, the slope (inclined surface) 39c. 39c are provided so that the lid 45 is gradually closed as the roller 47 moves without being caught.

As described above, the seedling feeding section 7 has the oval-shaped seedling feeding pots 40, 40 ... Arranged and passes in front of the main worker 23 and the auxiliary worker 24 in the rear of the machine in order. Then, the seedling 26 is inserted into the seedling transport pot 40 at the time of its passage, and is rotated and moved upward in which the transplant portion 20 is located in front of it. At the position above the transplanting section 20, the rollers 47, 47 separated by 3 pitches simultaneously fall into the openings 39a, 39b, and the lids 45, 45 are pivoted downward to open the seedlings 2.
6 is dropped and put into the transplanting nails 51, 51 of the transplanting part 20. The part to be dropped is the inheritance part 50.
And That is, the inheritance unit 50 is located on the drive side of the seedling supply unit 7 where the drive sprocket 41 is located, and by being located on the machine body side, the inheritance unit 50 can be brought close to the transplanting unit 20 and the inheritance becomes good. And the rollers 47 and 47 are on the slope 3
9c / 39c is abutted and gradually lifted to cover 45/45.
Is closed. Therefore, every other one of the transplant nails 51 is supplied from the seedling transfer pot 40. That is,
The odd-numbered seedling transfer pot 40 has the left (or right) side of the left and right openings, and the even-numbered seedling transfer pot 40 has the right (or left) opening with the lower lid 45 opened. Article (1st and 2nd articles or 3rd and 4th articles)
It will fall on the transplanted nails 51, 51 of. Therefore, two rows can be planted at the same time, and the distance between the left and right rows can be kept constant. That is, the openings 39a and 39b are provided above the transplant nails 51 and 51 so as to correspond to the transplant nails 51 and 51.

Here, conventionally, one pair and two sets of transplanted nails are provided in the left-right direction, a seedling supply section is arranged above the transplanted nails, the seedlings are put into the transplanted nails, and vegetables are simultaneously placed on the ridges. A vegetable transplanting machine that improves the transplanting efficiency by performing a two-row transplant has been known. In the conventional vegetable transplanter, since the seedling supply mechanism and the seedling planting mechanism are arranged in each of the left and right rows in order to plant two rows at the same time, the width in the left-right direction becomes wide and the body width becomes wide. When 4 rows are planted on one ridge, the 1st and 3rd rows are planted on the outward path, and the 2nd and 4th rows are planted on the return path. It is difficult to keep the interval between the 4th row constant, which makes it difficult to perform fertilizer application and middle tillage work, and when harvesting using a vegetable harvester that harvests two rows each, scratching is not performed accurately. It was. Also, 2
As the planting and seedling feeding device used the one-row feeding device as it was, a seedling storage cup was placed on a disc-shaped feeding table and driven intermittently to open the cup lower surface above the transplanting nail and drop it. I needed two people to do the porting work,
Since the seedlings are inserted into the cup of the intermittently rotating supply table, the insertion timing is more difficult than that of the continuously rotating supply table, and the faster the rotation, the more difficult the insertion. Furthermore, because the number of cups on the supply table was small, it had to be inserted without rest, there was not enough room, and not only were seedling insertion errors prone to occur, but fatigue was also a serious task. As described above, in the vegetable transplanting machine in which the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided on the machine body frame 2, and the transplanting nail 51 is moved onto the ridge 25 and transplanted, Multiple seedling transfer pots 40
Since the seedling feeding section 7 is configured so that the seedling feeding section 7 is arranged and rotated on a horizontal plane to convey to the inheritance section 50,
The part where the seedlings are transported in a straight line is formed, the timing is easier and the seedlings can be inserted more easily than the case where the seedlings are transported in an arc, and the transporting distance can be lengthened to lengthen the time for seedling insertion. It was possible to reduce the insertion error. Further, by providing the inheritance portion 50 in the straight portion, the transplanted nail 5 can be moved in the left-right direction.
1 can be arranged and two rows can be planted at the same time, and adjacent two rows such as the first row and the second row can be planted, which facilitates work and treatment such as management and harvesting.

Further, since the seedling supplying section 7 is arranged across the ridge width and an operator is located on one side or both sides of the ridge 25 so that the seedling 26 can be inserted into the seedling supplying section 7, The part 7 can be stably supported, and the seedling insertion work can be performed by one or two people, and the work can be performed according to the number of people who can work. Also, when working with two people, one person performs steering operation of the aircraft and seedling insertion work,
Other workers do not use the former to insert the seedling transfer pot 4
It became the work to replenish the seedlings 26 to 0, and the work could be complemented, and the work efficiency could be improved without requiring the perfect work. In addition, it is possible to use two types of work such as high-speed work and single-person work, low-speed work.

Further, since the seedling supplying section 7 is extended from the lateral center of the machine body to the side of the wheels 12 and 17 which are eccentrically arranged, the vacant space can be effectively utilized and the lateral weight balance can be improved. .

Further, the seedlings 26 are put into the transplanting nails 51 from the seedling supplying section 7 provided on the machine body frame 2 to make the transplanting nails 51.
In a vegetable transplanter that moves and transplants to the field 25,
Since the transplanting claws 51 are arranged side by side so that two adjacent rows can be transplanted from one seedling feeding section 7, two rows can be transplanted simultaneously, and work efficiency can be improved, and the first and second rows can be transplanted.
It can be planted in a row and it is easier to manage and harvest. Further, it becomes possible to add a pair of the transplanting section 20 of the two-row planting in the left-right direction to form a four-row planting, and at this time, the operator supplies the seedling with the main operator 23 in charge of steering and seedling reinforcement. This is an auxiliary work 24 for performing.

Next, with respect to the transplantation section 20, FIGS.
This will be described with reference to FIGS. 13, 14 and 15. A transplant portion 20 is arranged behind the planting mission case 5 in the center of the airframe between the rear frames 2b and 2b. The transplant part 2
0 is a rotary case 52 that is disposed on one side of the left and right and serves as a drive unit, left and right transplanting claws 51 and 51 that are located in the center of the left and right and that are conveyed from the inheritance unit 50 to the ridge 25, and are disposed on the other side of the left and right It is composed of an elevating guide 53 which serves as a guide part, and an arm and a link which connect these. The rotary case 52 and the elevating guide 53 are supported by the left and right body frames 2, and the transplanting claws 51, 51 are arranged between them.
1 and 51 are configured to move up and down along the elliptical locus X which is vertically long in a side view below the inheriting portion 50. The lower guide mounting position of the elevating guide 53 is variable in the front-rear direction so that the elliptical locus X is variable.

One end of the rotary case 52 is rotatably supported by a fulcrum shaft 54 protruding horizontally from the body frame 2, and a sprocket serving as a transmission body is provided on the outer peripheral portion of the fulcrum shaft 54 on the outer side surface of the rotary case 52. 55 is fixedly installed and interlocked with the planting mission case 5 via a transmission means such as a chain so that the transplanting section 20 and the seedling supplying section 7 are driven in synchronization. It should be noted that the structure may be such that a gear or the like is used instead of the sprocket 55, and there is no limitation.

In the rotary case 52, three gears (a sun gear, a planetary gear and an intermediate gear) are arranged in series and meshed with each other, and the output shaft 56 from the other side of the rotary case 52 is opposite to the sprocket 55. Overhangs.
One end of a transplant nail raising / lowering arm 57 is fixedly mounted on the output shaft 56. In this way, the gears are set so that the rotary case 52 makes one rotation and at the same time the tip of the arm 57 makes one rotation in the opposite direction along a vertically long elliptical locus.

One end of a connecting shaft 59 is fixed to the other end of the arm 57, and one side (front side) of the transplanted nail support 60, 60 is a bearing in accordance with the width L of two adjacent strips on the connecting shaft 59. It is rotatably supported via. The transplant nail support 6
A connecting auxiliary shaft 62 is connected between the front and rear midpoints of 0 · 60 to improve the rigidity. The transplant nail support 60 is composed of left and right plates, and the connecting shaft 5 between the left and right plates is formed.
An opening / closing cam 61 is fixedly mounted on the upper part 9.

A funnel-shaped cup 60a is formed on the other side (rear side) of the transplanted nail support 60, and the seedling 2 is inserted from the inheritance section 50.
6 is easily inserted, and a transplanting claw 51 is arranged below the cup 60a so as to be openable and closable.

The opening / closing mechanism of the transplanted nail 51 is the cup 60.
At the position where the front part and the rear part of a are separated by the same distance, the claw fulcrum shaft 63
63 is provided in the left and right horizontal direction, and the transplanted nail 5 is attached to the nail fulcrum shaft 63.
The upper and lower ends of 1 are pivotally supported. And the transplant nail 5
1 is a beak-shaped claw portion 51a.
The seedlings 26 are accommodated and supported in a state where 1a are combined, and the seedlings 26 are dropped in an opened state.
64 is provided to connect the front and rear claws 51a, 51a. Then, springs 69, 69 are provided between the pivot shafts 64, 64 and the upper portion of the cup 60a to lift the pivot shafts 64, 64 and urge the transplant nail 51 to close. There is.

Further, one end of a contact arm 65 is pivotally supported on the claw fulcrum shaft 63 of the claw portion 51a located on the side of the opening / closing cam 61, and the roller 66 is provided at the other end of the corresponding contact arm 65 to open / close the opening / closing. It is configured to abut the outer circumference of the cam 61. A pawl opening / closing amount adjusting mechanism 67 is provided between the abutment arm 65 and the upper portion of the pawl portion 51a. The pawl opening / closing amount adjusting mechanism 67 has a bolt 68 screwed between the pawl opening / closing amount adjusting mechanism 67 and the bolt 68.
The gap between the two is adjusted by rotating the
The rotation amount of "a" can be adjusted.

That is, the claw portion 51a is biased to be closed by the spring 69, and the tip end of the contact arm 65 located on the opposite side to the fulcrum shaft 63 is brought into contact with the opening / closing cam 61 to restrict the rotation. Has been done. That is, the claw portion 51a is rotated by the outer peripheral shape of the opening / closing cam 61, and the transplanted claw 51 is opened / closed. With such a configuration, the transplant claw 51 is always biased in the closing direction, and the opening / closing cam 6 is closed.
1 is forcibly opened by opening, so that the structure that locks in the open position cannot be locked unless a sufficient opening is obtained, and the transplanted nail 51 is in the middle of rising (the seedling 26 falls completely). There is a case where the seedling 26 cannot be dropped because it is closed (the opening and closing timing and the opening can be freely set by changing the cam shape) before the seedling 26 can be dropped. The seedling 26 can be surely opened to drop the seedling 26.

Then, the front portion of the transplant nail support 60 located on the left and right opposite to the rotary case 52 is extended upward to form an extension portion 60b, and the support shaft 70 is elevated from the extension portion 60b. A roller 71 is provided at the end of the support shaft 70 so as to project laterally on the side of the guide 53, and is fitted into an elevating guide 53 arranged in the vertical direction so as to guide the elevating and lowering of the transplanted nail 51.

In such a structure, the transplanted nail 51 is located at the rising end, the nail portions 51a, 51a are closed, and the inheritance portion 5 is
At 0, when the seedling 26 is input from the seedling supply unit 7, the rotary case 52 is rotated by the power from the planting mission case 5, and the arm 57 is also rotated at the same time, so that the pair of left and right transplanting claws 51, 51 are formed. At the same time, the lifting guide 53
The planting claw 51 draws an elliptical locus X and descends. Then, it descends to the lower end position and the front end is ridged 25
When it is pierced into the surface and a transplant hole is opened in the surface of the ridge 25, the contact arm 65 that abuts against the opening / closing cam 61 is rotated by the rotation of the opening / closing cam 61, and the claw fulcrum shafts 63, 63 are centered. The nail portion 51a is rotated to open the transplant nails 51, 51,
The seedlings 26 fall into the transplant holes and are released. When it is further rotated, the transplanting pawls 51, 51 are raised, and the pair of left and right transplanting pawls 51, 51 are simultaneously closed by the rotation of the opening / closing cam 61 at the raised position. That is, the opening / closing cam 61 opens the transplanting pawls 51/51 through the contact arm 65 at the large diameter portion during the rising of the transplanting pawls 51/51 and keeps the inactive state at the small diameter portion during the falling thereof. Transplant nail 51
Is closed by the spring 69.

Here, conventionally, seedlings were put into the transplanted nails,
There is a vegetable transplanter that rotates the transplant nail and transplants it to a field. The vegetable transplanter has seedling transfer pots arranged around a disk-shaped supply table at a predetermined interval, and supplies seedlings from the side so that the seedling transfer pots are rotated and transferred to the upper part of the transplanting nail, and forward. It is configured to rotate so as to fall from above the transplanted nail, and the transplanted nail is driven by a crank from the front. However, in the configuration where seedlings are supplied from the side of the supply table, since the distance between the supply position and the upper part of the transplanted nail is short, the seedling transfer pot immediately reaches the upper part of the transplanted nail, which makes the seedling supply work very busy. I will end up. Moreover, since the transplanted nail is driven by the crank, it is supported in a cantilever manner, which may cause uneven wear due to lack of rigidity. However, as apparent from the above, seedling supply provided on the machine body frame 2 The seedling 26 is put into the transplant nail 51 from the part 7 and the transplant nail 51 is placed in the field 2.
In a vegetable transplanter that moves to 5 planes and transplants, a drive sprocket 41 and a driven sprocket 42 are arranged on the right and left on the machine body frame 2, and the seedling transport pot 40 is connected in a chain shape and wound between the sprockets 41 and 42. Since the seedling feeding section 7 is configured in which the insertion section of the seedling 26 is arranged on the rear side in the traveling direction and the inheritance section 50 is arranged on the front side, the seedling transport pot 40
Can construct an endless body like a chain, and the construction is simple without the need for chains or belts. Also,
The seedlings 26 can be continuously conveyed from the back to the front and can be conveyed to the inheritance portion 50 to the transplanting nail 51, and the seedling insertion operator can be positioned at the rear and the side, thus widening the range of working positions. It was possible to take it, and the work became easy. In addition, the transport route to the inheritance section 50 became long, and seedling omissions (missing seedlings) were easily found, and the transplanting accuracy could be improved.

Further, since the inheritance section 50 is arranged on the side of the drive sprocket 41, it is possible to arrange the seedling supply section 7 and the drive section of the transplanting claw 51 close to each other, so that the drive structure can be made compact and the drive path can be improved. Was shortened, and the error could be reduced. In addition, since the drive unit is fixed to the frame having high strength, the strength of the inheritance unit 50 is increased and the distortion and the error are reduced.

Further, a pair of left and right transplanting claws 51, 51 are provided below the inheriting part 50, a driving part is arranged on one left and right side of the pair of transplanting claws 51, 51, and a guide part is arranged on the other side. Since it is provided, the transplanted nails 51, 51 can be supported from both sides, the strength can be increased, and the planting accuracy can be improved.

Further, the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided on the machine body frame 2 to make the transplanting nail 51.
In a vegetable transplanter that moves and transplants to the field 25,
The transplanted nail 51 has a beak-shaped pair of nail portions 51a, 51
a) and is biased by a biasing member 69 in the closing direction to connect the transplanting claw 51 to the contact arm 65 and bring the contact arm 65 into contact with the opening / closing cam 61 to open and close the transplanting claw 51. Since it is configured to be driven to the opening side by 61, the opening / closing cam 61 forcibly opens the transplanting nail 51, so that the opening amount is not insufficient and the transplanting nail 51 is surely opened to place the seedling 26 on the ridge 25. It was possible to drop it on the ground and improved the planting accuracy.

By the way, the opening / closing cam 61 is used as the transplant nail 51.
16 shows a state in which the transplanted nail 51 is opened and closed into two states, a closed state and an opened state. As shown in FIG. 16, when the transplanted nail 51 is raised, the transplanted nail 51.
By providing the opening / closing cam 61A in which the large diameter portion for opening 51 is formed in two steps, large and small, instead of the opening / closing cam 61, for example, the transplanting claw 51 descends to the lower end position and starts to rise and the ridge 2
The first acting portion 61 of the opening / closing cam 61A until it is removed from
By contacting b with the contact arm 65, the transplanted nail 51 is opened small, removed from the ridge 25, and then the second acting portion 61a of the open / close cam 61A and the contact arm 65 are lifted to the upper end position and turned down. The abutment of the above-mentioned means causes the transplanted nail 51 to be wide open. That is, when the transplanted nail 51 is lifted, the transplanted nail 51 is opened in two steps (a plurality of steps). That is, the opening / closing operation of the transplanted nail 51 by the cam shape of the opening / closing cam 61 or 61A is performed in multiple stages. Further, the opening / closing cam 61A is suitable for transplanting seedlings having large seedling leaves such as strawberries, because the opening diameter of the transplant hole formed in the ridge 25 can be reduced and the leaves can be smoothly removed from the transplant nail 51. In particular, in the case of a field where a mulch film is laid, it is effective to open the film so that if the transplanting nail 51 is wide open, the film is lifted when the film is pulled out from the film.

As is apparent from the above, the opening / closing cam 6 is
1 or 61A can change the opening / closing operation and the opening / closing amount of the transplanting claw 51 on the ascending / descending locus X depending on the cam shape, so that the seedlings that can be transplanted are not limited and the versatility can be improved.

Further, heretofore, the conventional structure has a structure in which the locking pin is fitted in the locking groove at the maximum open position to maintain the open state, and is forcibly closed by the lifting link member of the locking claw before the uppermost position. Therefore, unless the opening amount is constant (maximum opening amount), the opened state of the transplanted nail cannot be locked, and there was a case where the opening amount was not sufficient and the seedlings could not be released and released smoothly. Then, the seedling 26 is transplanted from the seedling supply section 7 provided on the machine body frame 2 to the nail 5.
In the vegetable transplanter which is put into the inside of 1 and moves the transplant nail 51 onto the ridge 25 and transplants it, the transplant nail 51 is composed of a pair of beak-shaped nail portions 51a, 51a, and is attached in the closing direction. The transplanting nail 51 is urged by the biasing member 69 to connect the transplanting nail 51 to the contact arm 65, and the contacting arm 65 is brought into contact with the opening / closing cam 61 that makes one rotation per one rotation of the transplanting nail elevating arm 57. Since the opening / closing cam 61 is driven to the opening side, the opening / closing cam 61 forcibly opens the transplantation pawl 51. Therefore, regardless of the opening amount of the transplantation pawl 51,
The open state could be maintained, and the seedlings 26 could be discharged onto the ridge 25 surface reliably and smoothly. Moreover, since the opening amount of the transplanted nail can be freely changed on the ascending / descending path X by the shape of the opening / closing cam 61, the transplanted nail 51 corresponding to the type of the seedling 26 can be obtained.
It was possible to easily obtain the opening amount of, and improve versatility.

Further, since the nail opening / closing amount adjusting mechanism 67 is provided between the contact arm 65 and the transplanting nail 51, the opening amount of the transplanting nail 51 corresponding to the kind of the seedling 26 can be obtained, and the opening amount can be increased. The open state is maintained even if adjusted, and the seedlings 26 are ridges 25
It could be discharged onto the surface reliably and smoothly.

Further, since the opening / closing cam 61 is formed so as to be opened to the uppermost portion or just before that at the time of lowering the transplanted nail, the normal opening / closing operation of the transplanted nail 51 can be surely obtained.

Further, since the opening / closing cam 61A is formed so as to open at the time of lowering of the transplanted nail and to open the transplanted nail 51 in multiple stages during the ascending of the transplanted nail up to the uppermost portion or immediately before that, for example, the transplanted nail 51 is at the lower end. Descend to position and start rising
When transplanting seedlings with large seedling leaves such as strawberries, open the ridges 25 by opening small until they are pulled out from 5, and after opening them from the ridges 25, widen them until they rise to the upper end position and start to descend. It is possible to smoothly remove leaves from the transplant nail 51 while reducing the diameter of the transplant hole to be opened, and thus it is possible to transplant a seedling having such a large seedling leaf.

Next, the support structure of the earth covering wheel 22 is shown in FIG.
7, FIG. 18, FIG. 19, and FIG. Stays 72, 72 project downward from the lower surface of the front and rear midway portions of the left and right rear frames 2b, 2b, and the front end of the earth covering frame 73 is pivotally supported on the stays 72, 72 by a fulcrum shaft 80 to form a pivotal support portion. . A lock portion 89 described later is provided in the vicinity of the pivot portion. The earth-covering frame 73 is U-shaped in a plan view, the handle 74 projects rearward from the rear end, the support stay 75 projects upward from the left and right central portions, and the mounting frame 76 vertically extends downward. There is.

A pivot shaft 90 is provided at the lower end of the mounting stay 76 so as to project in the front-rear direction, and a lower portion of the earth-cover support frame 91 is pivotally supported on the pivot shaft 90. The earth covering frame 91
Is a lateral "E" type when viewed from the rear, and pivotally supports the pivot shaft 90 at the lower part of the central frame, and covers the earth wheels 22, 22.2 between the left and right frames and the lower part of the central frame.
2.22 are arranged rotatably one by one on the left and right. The pair of soil wheels 22 and 22 are configured to straddle the line of the transplanted claws 51 and 51 in the traveling direction. In this way, the pivot shaft 90 is arranged in the lower left and right center to cover the left and right earthen wheels 22.
Is supported so that it can be tilted to the left and right to follow the inclination of the upper surface of the ridge 25 to improve the soil cover suppression accuracy and hold both sides of the root of the seedling 26 after transplantation. The ridges 25 are planted in two or more rows, and even in the flat ridges, the upper surface is formed in a mountain shape to improve drainage. In the figure, 91a and 91b are left and right stoppers that project from the earth-covering wheel support frame 91 to the left and right lateral sides of the support stay 75.
The right and left tilt amount of ... is regulated.

A pivot shaft 77 is provided on the upper side of the support stay 75 in the left-right direction, and one side of a guide rod 78, which is an extending member, is slidably inserted into the pivot shaft 77 so that the pivot shaft 77 can be supported. Springs 79a, 7 serving as a biasing member are provided on the guide rods 78 on both sides.
9b is externally fitted. The other end of the guide rod 78 is provided with a fulcrum shaft 8 at the rear of the handle frame 6 (middle frame 6M).
It is rotatably supported by 1.

With this structure, the earth covering wheel 22 is urged downward by the urging force of the spring 79b. When the earth-covering wheel 22 is lifted with the handle 74 at the end of work or when traveling, the dead center is crossed when the pivot shaft 77 is located above the line connecting the fulcrum shafts 80 and 81. It is possible to maintain the earth covering wheel 22 in the raised position. The spring 79a functions as a buffer spring.

Next, the structure of the lock portion 89 for locking the earth covering wheel 22 in the raised position will be described with reference to FIGS.
2 will be described. A lock portion 89 is provided near the pivot portion. The lock portion 89 is provided with a pivot arm 93 and a lock arm 94 on the rotation base side of the earth covering frame 73.
One end of the lock arm 94 is pivotally supported, and on the other side of the lock arm 94, an L-shaped elongated hole 94a extending in the longitudinal direction and upward (in the radial direction with respect to the fulcrum shaft 80) is formed. The locking pin 95 is projected to a position above the stay 72 of the frame 2b) and the locking pin 95 is inserted into the elongated hole 94a.
Have been inserted into.

Further, the wire 96 and one end of a spring 97 are connected to the other end (upper end) of the lock arm 94, and the other end of the spring 97 is connected to the front rear frame 2b to move the lock arm 94 forward and downward. The wire 96 is urged to rotate, and the other end of the wire 96 is connected to an arm 99 provided on the rotation base of the elevating lever 32. The lifting lever 32 is further connected to a hydraulic operation lever provided near the engine 3 via a wire 97a for lifting operation, and is also connected to a clutch shifter of a planting clutch via a wire 97b for operating a planting clutch. By operating the elevating lever 32, elevating and lowering the machine body, turning on and off the planting clutch, and covering the earth 2
The lock can be released from the ascended position 2 by a single lever operation.

In such a structure, the handle 7 is
4 is lifted to raise the earth-covering wheel 22, the lock arm 94 is also lifted, and the long hole 9 is formed along the locking pin 95.
4a rises, and when the soil cover wheel 22 reaches the position where it is maintained in the raised position by crossing the dead point as described above in the raised position, the locking pin 95 enters the vertical portion 94b of the long hole 94a, and the lock arm 94 springs. The pulling force of 97 urges it to rotate forward and downward, the locking pin 95 is maintained in the vertical portion 94b of the elongated hole 94a, and even if the earth covering wheel 22 tries to rotate downward due to its own weight or the like, it is engaged in the vertical portion 94b. The stop pin 95 is engaged and cannot rotate, and the earth covering wheel 22 is locked in the raised position.

Then, at the time of starting the work or resuming the work after the traveling, when the raising / lowering lever 32 is rotated forward so that the machine body is lowered and the planting clutch is engaged, the wire 96 is moved.
(When the lift lever 32 is rotated forward, the wire 97a
97b is pulled back to rotate the lock arm 94 rearward and upward, and by this rotation, the locking pin 95 is removed from the state where it enters the vertical portion 94b of the elongated hole 94a, and the earth covering frame 73 is moved downward. The earth covering wheel 22 is pushed down by passing the dead point crossing portion. That is, the lifting lever 32
The earth-covering wheel 22 can be lowered in conjunction with the lowering operation and the operation of engaging the planting clutch. In this way, the earth covering wheel 22 is also lowered at the same time by the lowering operation of the elevating lever 32 and the operation of engaging the planting clutch to improve the operability.

Here, conventionally, seedlings were put into the transplanted nails,
There was a vegetable transplanter in which the transplanted nail was rotated, transplanted in a field, and covered with a soil cover. In the vegetable transplanter, a soil cover wheel is interlocked with a lifting mechanism of the machine body via a link mechanism, and a member supporting a wheel is rotated downward to lower the wheel to raise the machine body to cover the soil. I was also trying to raise the wheel. However, in the conventional vegetable transplanter, if the height of the ridge is different, the height of the earthen cover must be adjusted, and since the arm and the link are connected, the adjustment width is limited. In other words, it is difficult to make the earth-covering wheel high. Further, the ability to follow unevenness on the ridge surface is also poor, but as is clear from the above, the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided on the machine body frame 2, and the transplanting is performed. In a vegetable transplanter in which the claw 51 is moved to the surface of the field 25 and transplanted, and the soil cover wheel 22 provided behind it is used to suppress the soil cover, the soil cover wheel 22 is configured to be movable up and down, and the soil cover wheel 22 is lowered when the machine body descends. Alternatively, since it is configured to descend at the same time when the aircraft descends and when the planting clutch is engaged, the aircraft is lowered or the aircraft is lowered at the start of work or when work is resumed after traveling, and the earthen belt 22 is also descended at the same time when the planting clutch is engaged. Thus, it is possible to prevent forgetting to lower the earth-covering wheel 22 and save the labor of lowering the earth-covering wheel 22.

Further, the earth covering frame 22 is replaced with the earth covering frame 7
3 is supported at the rear part, the front part of the earth-covering wheel frame 73 is pivotally supported by providing a pivotal support part at the rear part of the body frame 2, and a lock part 89 for locking the earth-covering wheel 22 at a raised position is provided near the pivotal support part. Therefore, even if the lift handle is accidentally touched, it does not descend, and it does not descend due to its vibrations and impacts during movement and traveling, and the earth-covering wheel 22 does not descend when it is not intended. I was able to keep it in the raised position.

Further, since the lock portion 89 is interlocked with the elevating lever 32 for elevating and lowering the machine body or the elevating lever 32 for vertically elevating and lowering the machine body and simultaneously opening and closing the planting clutch, the lowering operation or lowering operation and planting of the elevating lever 32 is performed. The soil covering wheel 22 can be simultaneously lowered by the clutch engagement operation, and the lowering operation of the soil covering wheel 22 can be omitted to improve the operability. Further, the elevating lever 32 and the lock portion 89 can be arranged close to each other, so that the connecting mechanism can be easily configured.

A biasing member 79b for biasing the soil covering wheel 22 downward is provided between the rear portion of the soil covering wheel frame 73 and the handle member 6 extending rearward from the machine body frame 2, and the biasing member 79b is provided. Since the member 79b is configured to hold the rising position beyond the dead center when the soil covering wheel 22 is raised, when the soil covering wheel 22 is lowered, the member 79b is urged to press the field 25 surface, and when raised. The earth-covering wheel 22 can be held in the raised position, an auxiliary force to be maintained in the raised position can be loaded, and it is not necessary to increase the rigidity of the lock portion 89, and a simple structure can be achieved at low cost. .

Next, the seedling guide mechanism 100 between the pair of left and right soil-covered wheels 22 will be described with reference to FIGS.
The seedling guide mechanism 100 has a transplant nail formed on the surface of the ridge 25 with the transplant nail 51, and the seedling 26 dropped and released into the transplant hole.
The leaf cover is composed of a pair of left and right guide members 101, 101 for supporting and guiding the left and right sides.
2 discloses a guide rod having a V-shape in plan view, one end of which is pivotally attached to the outer soil-cover wheel support frame 91 as the guide member 101, and the guide rod extends forward from the outer side of each soil-cover wheel 22. A bent portion is located in front of the earthen cover 22 and a free end portion extending rearward from the bent portion serves as a guide portion of the seedling 26, and a pair of left and right guide portions are provided between the left and right guide portions. In order to guide the leaves of the seedling 26 from the front between the soil-covering wheels 22, the passage width becomes narrower toward the rear, and the passage width at the rear end is approximately the same as the distance between the grounding portions of the pair of left and right soil-covering wheels 22. The guide path 102 is formed, and the leaf portion of the seedling 26 dropped and released into the transplant hole is supported and guided in front of the earth covering wheel 22 by the guide path 102, and the pair of left and right earth covering wheels 2 is provided.
By guiding between the seedlings 2, the seedlings 26 tilt left and right at the time of dropping and releasing into the transplantation hole, and the seedlings 26 tilt left and right by wind or the like until the soil is covered and suppressed by the soil cover ring 26. Also, it is configured so that the inclination can be corrected and transplanted in an appropriate posture. In this embodiment, the guide member 101
Is provided between the transplanting part 20 and the soil cover wheel 22, but the front part is made to extend forward of the transplanting part 20, and the guide members 101
May be caused to drop and be released by the transplanting claw 51 into the transplant hole on the ridge 25 surface of the seedling 26, and the rear part may be extended between the soil cover wheels 22 and at least until the soil cover suppression of the seedling 26 is completed. 26 may be held in the transplant position.

Here, conventionally, the soil cover ring of the vegetable transplanter is composed of one pair of left and right, and when it is multi-row planted,
It was provided side by side on the left and right sides of the body frame with the same height as the number of transplanted lines, with the soil ring frame interposed. However, the upper surface of the ridge for transplanting seedlings is formed in a mountain shape so that it becomes lower from the central part toward the end, and it is designed to improve drainage, so the earth-covering ring on the ridge end side has a lower grounding pressure. In addition, if the slope of the ridge is tight, the soil-covering ring on the ridge end side rises from the ridge, and the more the number of grafts is increased, the more difficult it is to control the soil-covering and The seedlings that have fallen and released are hardened to the left and right due to the slope of the ridges, or in the case of lightweight seedlings that do not have root pots such as onion seedlings, they may be hardened to the left and right even in the wind, etc. , Suppress the soil cover with the seedlings tilted (will be transplanted)
Although there was a problem, as is clear from the above, the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided in the machine body frame 2, and the transplanting nail 51 is moved onto the ridge 25 and transplanted. , In the vegetable transplanter that suppresses the soil cover with the soil cover wheel 22 provided behind it, since the soil cover wheel 22 is supported on the body frame 2 so as to be tiltable left and right, the soil cover wheel 22 can be grounded to the ridge 25 surface at substantially the same ground pressure. , It was possible to improve the soil cover suppression performance in a vegetable transplanter for multi-row planting.

Further, since the soil-covering wheel 22 is tilted left and right with respect to the soil-covering wheel frame 73 that is supported on the machine body frame 2 so as to be able to move up and down, the ridge surface 25 can be tilted left and right, and at the same time, the followability to irregularities can be simultaneously secured. It was possible to further improve the soil cover suppression performance in the planting plant transplanter. In addition, the part that can be tilted to the left and right (covering wheel support frame 91, covering wheel 2
Since 2) is the minimum necessary, the response is good and the weight is light.

The seedling supply section 7 provided on the machine body frame 2
The seedling 26 is put into the transplant nail 51, the transplant nail 51 is moved onto the ridge 25 and transplanted, and the earthen cover 2 provided behind the transplant nail 2
In the vegetable transplanter for suppressing soil cover by 2, the guide members 101, 101 for supporting the seedlings 26 dropped on the ridges 25 from the left and right sides and guiding between the pair of left and right soil cover rings 22 are provided. Even if the seedling 26 tilts to the left or right at the time of release and release, or the seedling 26 tilts to the left or right due to wind or the like until the root is covered with soil by the soil-covering ring 22, the tilt of the seedling can be 101.101. In the state in which the seedlings 26 are erected in a substantially straight state, the soil cover wheel 22 can suppress the soil cover, and the seedlings 26 can be transplanted in an appropriate posture.

In addition, the guide members 101, 101 are replaced with seedlings 26.
Since it is applied to the leaf part, even if the seedling has a large number of leaves or a large seedling, the guide members 101 and 101 function to gather and bundle the seedlings, and to properly adjust the space between the soil covering wheels 22. The seedlings can be passed through to the roots of the seedlings and the roots of the seedlings 26 can be properly suppressed, and the distance between the grounding portions of the soil-covering ring 22 can be made narrower than in the conventional case, so that the soil can be covered right next to the roots of the seedlings 26. You can now squeeze.

Next, the structure of the irrigation system 105 is shown in FIG.
This will be described with reference to FIGS. 7, 8, 23 and 24. Irrigation device 1
Reference numeral 05 denotes watering the transplanted seedlings 26 to assist the survival of the seedlings 26. A nozzle base 106 is provided in the vicinity of the inheritance section 50 of the seedling supply unit 7, and two left and right watering nozzles are provided above the nozzle base 106. 107, 107 are attached, and the jet outlets of the left and right irrigation nozzles 107, 107 are extended above the seedling transfer pots 40, 40 that have moved above the transplanting claws 51, 51,
The inside of the seedling transport pot 40, 40 that has been supplied with pressure water from the irrigation tank 108 to the left and right irrigation nozzles 107, 107 via the irrigation pump 109, and has moved above the transplanting nails 51, 51 by the left and right irrigation nozzles 107, 107. It is configured to irrigate from above.

As for the irrigation timing, the rollers 47, 47 are simultaneously opened at the opening 39a at a position above the transplanted nails 51, 51.
・ When it falls into 39b and the lids 45 ・ 45 rotate downward to open, the inner surface of the seedling transfer pot 40 ・ 40 and the seedling 2
6 is splashed with water, and the seedling 26 is forcibly and forcefully discharged downward by the water.
The seedling 26 is surely and quickly dropped into the 51, and at the same time, the water causes the mud to adhere to the inner surface of the seedling carrying pot 40.
The soil is washed away. Seedling transport pot 40.4
It flows down the inner surface of 0 and flows downwards along with the seedlings 26 in the opening 3
Grafting nail 51.5 located at the rising end via 9a and 39b
1 is transplanted to the ridges 25 and 51 by the transplanted nails 51 and 51, and at the same time, the seedlings 26 are watered and the mud and soil adhering to the inner surfaces of the transplanted nails 51 and 51 are washed away with the water. Of. Fertilizers and chemicals may be added to the water used for irrigation.

A timing switch 110, which is a watering sensor, is attached to the nozzle base 106. The timing switch 110 is switched by the seedling transfer pot 40 each time the seedling transfer pot 40 moves right above one opening 39a. The arm is pushed to turn on, and the switch arm returns in the gap between the seedling transfer pots 40 to turn off. The timing switch 110 is an irrigation controller 111
The water supply control unit 111 is provided with a water supply port 112 and a water supply port 113 which are connected to each other through an electromagnetic opening / closing valve (not shown), and the water supply port 112 is provided with a water supply hose 114 and a discharge port of the irrigation pump 109. Connect the water supply port 11
3, a water supply hose 115 is connected, two branch water supply hoses 115a and 115b are connected to the ends of the water supply hose 115 via a branch hose joint 116, and the ends of the respective branch water supply hoses 115a and 115b are connected. Each irrigation nozzle 107 ・
It is connected to 107. Then, while the irrigation pump 109 is operated, the electromagnetic opening / closing valve is turned on by the timing switch 110.
The electromagnetic opening / closing valve is opened for a predetermined time every two times the ON / OFF operation is performed, and the irrigation is intermittently performed at the irrigation timing. The irrigation pump 109 is the irrigation tank 10
The electric submersible pump provided in 8 is used, and the submersible pump 109 is intermittently operated by operating the submersible pump 109 constantly during transplanting work and unloading excess water when the electromagnetic opening / closing valve is closed. It is more responsive than the one that operates and can be used for high-speed transplantation.

Further, the irrigation tank 108 includes the left and right front wheels 12
・ It is provided on the left side of the machine body (traveling section) displaced to the right side with respect to the four-wheeled traveling device composed of 12 and the left and right rear wheels 17, 17, that is, on the one side of the machine body on the opposite side to the displaced side. The front part is pivotally fixed to the middle part of the front wheel support shaft 10 extending to the left side of the front part of the body frame 2, and the rear part is pivotally connected to the middle part of the rotation support shaft 14 extending to the left part of the middle part of the body frame 2. The tank support frame 117 is attached and fixed to the left side of the front half of the machine body. The tank support frame 117
Forms a tank mounting portion 118 on the upper side of the rear end portion above the rotation support shaft 14, and detachably mounts and supports the irrigation tank 108 so that the load of the irrigation tank 108 is applied to the rotation support shaft 14. . Then, the irrigation controller 111 is attached to one side of the tank placing section 118, the battery placing section 119 is formed on the upper side of the central portion of the tank support frame 117 immediately before the tank placing section 118, and the battery 120 is attached to the battery placing section 119. It is mounted and supported, and the battery 120 is used as a power source for electric devices such as the irrigation pump 109 and the irrigation controller 111 of the irrigation device 105.

Thus, the four-wheel traveling device (the front left and right wheels 12,
12 and the left and right rear wheels 17, 17) in the vegetable transplanter in which the machine body is displaced to the left and right sides so that the left and right balance is biased to the left and right sides, and the side opposite to the side where the heavy watering tank 108 is displaced. It is mounted and supported on the left and right sides of the machine to improve the left-right balance of the vegetable transplanter and improve driving and handling performance. Further, the middle part of the front wheel support shaft 10 and the middle part of the rotation support shaft 14 are connected and fixed by the tank support frame 117 to improve the rigidity.

Here, conventionally, a disk provided with a plurality of seedling carrying pots is rotated to manually carry the seedlings supplied to each seedling carrying pot above the transplanting nails and drop them into the transplanting nails. A semi-automatic vegetable transplanting machine provided with a seedling supply configured as described above is known. It is also known to equip a vegetable transplanter with an irrigation device that performs a small amount of irrigation at the time of transplantation or immediately after transplantation in order to assist the survival of seedlings. The irrigation device of the vegetable transplanter is equipped with a nozzle for irrigation around the transplanted nail so that water can be supplied while also cleaning the transplanted nail.
Watering was performed for each seedling in synchronization with the timing of transplantation. When using a semi-automatic vegetable transplanter to transplant light seedlings such as onion seedlings that do not have a root pot, seedlings adhered to the inner surface of the transport pot and were not supplied to the transplanted nails, causing a missing strain. . Further, high-speed transplantation of seedlings from the seedling supply section to the transplant nail was also difficult, and high-speed transplantation was not possible.
In the transplanting machine that is placed in 1 to move and transplant the transplanted nail 51 to the ridge, the irrigation device 105 that irrigates the seedling transfer pot 40 of the seedling supply unit 7 is provided. The irrigation can help to ensure reliable and quick seedling supply from the seedling transfer pot 40 of the seedling supply unit 7 to the transplanting nails 51 (assisting the falling of the seedling 26), and ensures that even lightweight seedlings will not run out of stock. It has become possible to transplant even to light seedlings at high speed. At the same time, it is possible to clean the inside of the seedling transfer pot 40 and the lid 45 on the bottom surface thereof, and further the inside of the transplant nail 51, and the lubricity of the inner surface of the seedling transfer pot 40 and the inner surface of the transplant nail 51 is reduced due to adhesion of mud and soil. Also, it is possible to prevent malfunction of the lid 45, to more smoothly drop the transplanting nail 51 from the seedling transport pot 40 and the transplanting nail 51 to the ridge 25 surface, and to transplant the nail by transplanting soil. It was possible to prevent the transplantability of No. 51 from being degraded.

Further, since the watering nozzle 107 is provided above the transplanting nail 51 and above the seedling carrying pot 40, the seedling 2
The irrigation water for No. 6 could be surely put into the seedling transport pot 50 without leakage, and the irrigation water for the seedling 26 could be effectively utilized without waste to assist the falling of the seedling 26.

Further, since the means 111 for controlling the irrigation timing in accordance with the fall timing of the seedling 26 from the seedling transport pot 40 to the transplanting nail 51 is provided, the irrigation of the seedling 26 is effectively used without waste and the seedling 26 is effectively stored. I was able to assist the fall.

Further, the machine body is displaced to the left and right with respect to the four-wheeled traveling device including the left and right front wheels 12 and 12 and the left and right rear wheels 17 and 17, and the watering device is provided to the left and right sides of the machine body opposite to the displaced side. Since the irrigation tank 105 is provided, specifically, the irrigation tank 108 serves as a weight for balancing the left and right of the machine body, and the left and right balance of the machine body, and thus the straightness can be improved.

In this embodiment, two-row planting is performed, but it is also possible to add a pair of transplanting nails and a driving mechanism therefor in the left-right direction to form four-row planting. Further, in the present embodiment, the traveling portion (machine body) is eccentric to the right in the traveling direction, but it may be eccentric to the left.

[0084]

Since the present invention is constructed as described above,
The following effects are achieved. That is, according to claim 1, the seedling 2 is supplied from the seedling supply section 7 provided in the machine frame 2.
6 is put into the transplant nail 51, and the transplant nail 51 is placed in the field 25.
In the vegetable transplanter in which the soil cover 22 is moved to the surface and transplanted, and the soil cover 22 is provided behind it, the soil cover 22 is supported on the machine body frame 2 so as to be tiltable left and right. The grounding can be performed with substantially the same grounding pressure, and the soil covering pressure suppression performance in the multi-row planting machine can be improved.

Further, as described in claim 2, the earth covering wheel 2 is supported with respect to the earth covering frame 73 which is supported on the machine body frame 2 so as to be able to move up and down.
Since 2 is supported so that it can be tilted to the left and right, it is possible to secure the ability to follow the unevenness as well as the left and right inclination of the surface of the field 25 at the same time, and it is possible to further improve the soil cover suppression performance in the multi-row planting machine. Also, since the left and right tilting parts are the minimum necessary, it is responsive and lightweight.

Further, as described in claim 3, the seedling 26 is put into the transplanting nail 51 from the seedling supplying section 7 provided in the machine frame 2, the transplanting nail 51 is moved to the surface of the field 25 and transplanted, and thereafter. In the vegetable transplanter that suppresses soil cover with the soil cover 22 provided on one side, the guide members 101, 101 that support the seedlings 26 dropped on the surface of the field 25 from both left and right sides and guide between the pair of left and right soil cover 22 are provided. Since it is provided, even if the seedling 26 tilts left and right when it is dropped into the transplant hole, or even if the seedling 26 tilts left and right by wind or the like until the root is covered with soil by the soil-covering ring 22, that tilt With the guide member 101, 101, the seedling 26 can be erected in a substantially straight state, and the soil can be suppressed by the soil-covering ring 22 so that it can be transplanted in a proper posture. Suitable for transplantation.

Further, as in claim 4, the guide member 101
Since 101 is applied to the leaves of the seedling 26, the guide member 10 can be used even if the seedling has a large number of leaves or a large seedling.
1.101 functions to gather and bundle the seedlings, properly pass the seedlings between the soil-covering rings 22, and properly suppress the soil-covering to the roots thereof.
It is possible to make the space between the grounding portions of the seedlings narrower than in the conventional case, and it is possible to surely suppress the soil cover right next to the root portion of the seedling 26.

[Brief description of drawings]

FIG. 1 is a side view showing the overall configuration of a walk-behind vegetable transplanter according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of a body frame and a mission case portion.

FIG. 4 is a plan view of a body frame portion.

FIG. 5 is a plan view of a seedling supply section.

FIG. 6 is a plan view of the seedling carrier table.

FIG. 7 is a rear cross-sectional view of the inherited portion.

FIG. 8 is a plan view of the same.

FIG. 9 is an enlarged view of a seedling transport pot section.

FIG. 10 is an enlarged sectional view of the same.

FIG. 11 is an enlarged plan view of the same.

FIG. 12 is a rear view of the transplant part.

FIG. 13 is a side sectional view of the same.

FIG. 14 is a plan view of the same.

FIG. 15 is a side view of the transplanted nail.

FIG. 16 is a side view of the transplanted nail showing a modified example of the opening / closing cam.

FIG. 17 is a side view of the covering wheel support portion.

FIG. 18 is a rear view of the earth covering part.

FIG. 19 is an enlarged rear view of the same.

FIG. 20 is an enlarged side view of the same.

FIG. 21 is a plan view of the same.

FIG. 22 is a side view of the lifting lever portion.

FIG. 23 is a side view of the irrigation device.

FIG. 24 is a plan view of the same.

[Explanation of symbols]

2 airframe 7 seedling supply department 22 soil cover 25 fields (ridges) 26 seedlings 51 Transplant nail 73 Earthen frame 101 Guide member

Claims (4)

[Claims] 1. A vegetable in which seedlings are introduced into a transplant nail from a seedling supply section provided in a machine frame, the transplant nail is moved to a field scene and transplanted, and a soil-covering wheel provided behind the vegetable suppresses soil-covering. In the transplanter, a vegetable transplanter in which a soil cover wheel is supported by a body frame so as to be tiltable left and right. 2. The vegetable transplanting machine according to claim 1, wherein a soil-covering wheel is supported so as to be tiltable left and right with respect to a frame which is supported by the machine body frame so as to be able to move up and down. 3. Vegetables in which seedlings are introduced into a transplant nail from a seedling supply section provided in a machine frame, the transplant nail is moved to a field scene and transplanted, and soil covering is suppressed by a soil cover provided behind it. In the transplanter, a vegetable transplanter is provided, which is provided with a guide member that supports seedlings dropped in a field from both left and right sides and guides them between a pair of left and right soil-covering wheels. 4. The vegetable transplanter according to claim 3, wherein the guide member is caused to act on the leaf portion of the seedling.