JPH1175438A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent trouble from occurring in the development of seedlings with a residue of a mulching film even when a hole for transplanting cannot completely be bored with a mulching film perforating device. SOLUTION: This transplanter is obtained by installing a perforating unit 37 for coming into contact with a mulching film M and forming a hole for transplanting therein and a planting unit 22 with an opener 31 for thrusting through the hole for transplanting into a ridge R and opening and thereby planting a seedling N held therein in a mobile body running along the ridge R laid with the mulching film M and further forming a slit forming tool 44 for forming the slit in a residue Ms of the mulching film M remaining in the hole for transplanting in the opener 31 so as to enable the downward elongation of roots of the seedling N through the slit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-film punching device for a transplanter for planting vegetable seedlings in a field.

[0002]

2. Description of the Related Art A transplanting machine for planting a vegetable seedling on a ridge covered with a multi-film is provided with a multi-film piercing device for piercing a hole for transplantation in a portion of the multi-film where a seedling is to be planted. After drilling a hole with a multi-film punching device, a plant is pierced into a ridge through the hole to plant a seedling.

[0003] As such a multi-film perforating apparatus, a heating element formed by using a gas burner, an electric heating coil or the like is brought into contact with the multi-film to burn off the film (see, for example, JP-A-6-46681). ) And those that push the multi-film off with a cylindrical cutter blade (see, for example, JP-A-6-38638).

[0004]

Among the above conventional multi-film perforating apparatuses, in the case of burning out by contacting a heating element, if water droplets are formed on the multi-film due to dew condensation or the like, the water droplets are applied to the film by the water droplets. In some cases, the temperature of the contacting heating element drops locally and the film cannot be completely burned off. In such a case, debris (residue) of the film remains over the portion where the seedlings are planted. I was

[0005] Further, when a multi-film is pushed out by a cylindrical cutter, the multi-film may not be pushed completely due to bending or the like. In this case, the film residue remains on the ridge in a state of being connected to the surroundings. Was supposed to be. In the prior art with a cylindrical cutter, there is disclosed a suction machine that sucks the residue of the cut-out film from the ridge or a needle that removes the residue by piercing the film residue. Is useful if the film is cut out completely by
It is difficult to remove the film residue if it is not completely cut out and connected to the surroundings.

[0006] As described above, if there is a residue of the multi-film on the ridge, when the planting body is pierced into the ridge, the remaining debris is involved and is buried in the ridge. There was a possibility that the lower part of the root pot of the seedling was covered and the root growth was adversely affected. Since such a phenomenon occurs in the ridges, it is difficult to find out after planting the seedlings. If left unattended, the seedlings will not grow sufficiently and the commercial value of the vegetables will be reduced.

[0007] Therefore, the present invention provides a method for forming seedlings in which the roots of seedlings are formed in the residue of the multi-film when a hole for transplantation cannot be completely formed by the multi-film punching device. An object of the present invention is to provide a transplanter that does not impair growth.

[0008]

The present invention employs the following technical means to achieve the above object. That is, the present invention provides a piercing body 37 for forming a transplanting hole in contact with the multi-film M on the traveling body 2 traveling along the ridge R on which the multi-film M is laid, Ridge R
And a planting body 22 having an opener 31 for planting the seedling N held therein by rushing into and opening the plant, by the operation of planting the seedling N with the opener 31,
Residue M of the multi-film M generated at the site where the implantation hole is formed
A cut forming tool 44 for forming a cut corresponding to a position below the seedling N is provided on the opener 31 at s.

According to this, when the transplant hole is formed in the multi-film M by the perforator 37, if the hole is not completely punched and the film residue Ms remains, the seedling N Is cut in the residue Ms by the cut forming tool 44 so that the root of the seedling N to be planted can extend downward through the cut. Thus, the growth of the planted seedlings N is less hindered by the residue Ms, and it is possible to prevent the commercial value of the vegetables from being reduced.

Further, according to the present invention, the notch forming tool 44 includes:
By inserting the opener 31 into the ridge R, the multi-film M
Is pierced into the residue Ms, and the cut is opened by opening the opener 31. According to this, the cut is opened using the operation of opening the opener 31, so that the bottom of the seedling N is opened. Can be widely opened to make the roots easy to grow, and the seedlings can be better bred.

Further, the present invention relates to the notch forming tool 44.
Is characterized by comprising a cutting blade 45 provided on the outer surface of the lower end of the opener 31 and having its cutting edge directed in the opening and closing direction of the opener 31.
Can be reliably formed by the cutting blade 45 through an operation of piercing the ridge R or an operation of piercing and opening the ridge R, and by turning the edge of the cutting blade 45 in the opening and closing direction of the opener 31, the opener 31 is moved. When opened, the residue Ms can be greatly cut and spread by the cutting edge of the cutting blade 45.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 5 shows a transplanter 1 for transplanting seedlings N such as vegetables into ridges R. In FIG.
This is a walking type having a transplanting device 3 and a steering handle 4 behind the traveling body 2, and automatically moves the soil block seedlings N at predetermined intervals on the ridges R while running along the longitudinal direction across the ridges R. It is something to plant.

In the following description, the traveling direction of the transplanter 1 is referred to as the front-back direction, and the lateral direction perpendicular to the traveling direction is referred to as the left-right direction. The traveling body 2 has a traveling body 8 which is mounted on a front portion of a transmission case 5 so as to protrude forward and has an engine 7 and the like mounted thereon. Is input to a power transmission mechanism in the transmission case 5, and the power input into the transmission case 5 is transmitted from a wheel transmission shaft 9 protruding to the left and right sides via a transmission mechanism or the like, and from the wheel transmission shaft 9. Is also provided at the rear and can be taken out from a first PTO shaft 10 protruding left and right and laterally, and a second PTO shaft 11 protruding from the rear surface.

A pair of left and right driving wheels (rear wheels) 13 are supported at the left and right ends of the wheel transmission shaft 9 via a transmission case 12 which can swing up and down around the axis thereof. The front wheels 14 are supported so as to be able to swing up and down.
4 allows the traveling body 8 to travel. The transplanting device 3 is provided on a transplanting frame 15 attached to the rear of the traveling machine 8, and includes a planting device 16 for planting the seedlings N in the ridges R, and a seedling supply device for supplying the planting N to the planting device 16. 17 and a multi-film punching device 18 for previously punching a transplant hole in the multi-film M at a position where the seedlings N are to be planted.
And soil cover 1 to cover and crush the root of planted seedling NS
9 is provided.

The transplant frame 15 has a front portion fixed to the transmission case 5 and a fixed frame 15A, and is disposed below the fixed frame 15A. The front portion is mounted on the transmission case 5 around the first PTO shaft 10. A movable frame 15B is rotatably connected to the movable frame 15B. The seedling supply device 17 is provided on the fixed frame 15A, and the steering handle 4 is attached to the rear end of the fixed frame 15A. Further, the movable frame 15B is formed in a substantially U-shape in plan view, and both free ends thereof are pivotally attached to the first PTO shaft 10.
6. The earth covering wheel 19 and the multi-film punching device 18 are supported.

The seedling supply device 17 transfers the seedling trays T in which a large number of pot portions P in which the soil block seedlings N are grown are arranged vertically and horizontally, while transferring the seedling trays T in the horizontal and vertical directions.
The soil block seedlings N are taken out one by one by the seedling take-out claw 20 at a predetermined seedling take-out position with respect to the planting device 16 from the planting device 16 and the seedlings N are transferred to above the planting device 16. It is designed to be dropped into.

The seedling tray T is made of resin and has flexibility, and a pot portion P is provided so as to protrude from the rear surface. Each pot portion P is provided with a soil block seedling N. FIG.
Alternatively, as shown in FIG. 2, the planting device 16
And a swing link mechanism 23 that supports the planted body 22 so as to be able to swing up and down.

The swing link mechanism 41 includes a first parallel link 24 supported by the movable frame 15B so as to swing back and forth.
A swing plate 25 pivotally connected to the lower end of the first parallel link 24, and a second parallel link 26 pivotally connected to the swing plate 25 so as to swing up and down. The plant 22 is pivotally connected to the rear end of the parallel link 26.

On the movable frame 15B, a crankshaft 27 in the left-right direction is rotatably supported, and a crankpin of the crankshaft 27 is pivotally connected to an upper link of the second parallel link 26. Further, the rotational power of the first PTO shaft is transmitted to the crankshaft 27 via a wrapping transmission mechanism 28 and is driven to rotate. Therefore, the power from the first PTO shaft 10 rotates the crankshaft 27 in the counterclockwise direction in FIG. 1, whereby the first and second parallel links 24 and 26 swing, and the planted body 22 moves up and down. It also swings back and forth, and moves so as to draw a substantially elliptical trajectory 2 with respect to the traveling body 2.

As shown in FIGS. 3 and 4, the planting body 22 is a tubular body 29 having an opening having a rectangular shape in a plan view, and a lower part is opened and closed in a front-rear direction with a mounting pin 30 as a fulcrum. A front and rear opener (beak) 31 is provided. The opener 31 is formed in a cup shape that is tapered downward with an upper end opening, has a circular flat cross-section at the top, and gradually approaches the ellipse that is long in the left-right direction as it goes down. It has been. An open / close link 32 is provided on an upper portion of the opener 31. Both the front and rear openers 31 can be opened and closed by rotating around the mounting pins 30 via the open / close link 32.

Then, the seedlings N are dropped and supplied from the upper end opening at the upper end side of the locus on the locus of the locus, and descend and plunge into the ridges R with the opener 31 closed to form a planting hole. Thereafter, the front opener 31 is pulled forward by the interlocking device 33 provided between the movable frame 15B and the opener 31, so that the opener 31 rotates around the mounting pin 30 and the pin 32a of the opening / closing link 32 is moved. Pushed downward, the rear opener 31 rotates around the mounting pin 30, whereby the opener 31 opens back and forth to release the seedlings N housed in the planting body 22 into the planting holes and release the seedlings N. Plant on R. By repeating this operation, the seedlings N can be planted at predetermined intervals in the ridges R while running.

It should be noted that the front and rear openers 31 are
3 is urged by a tension spring 34 so that it is always closed when not in operation. Further, the opening / closing link 32 of the opener 31 is provided with a stopper bolt 35 for limiting the opening degree of the opener 31. The earth covering ring 19 is attached to the rear part of the movable frame 15B, supports the rear part of the movable frame 15B, and is disposed in a pair on the left and right sides so as to sandwich the seedling planting portion. It is designed to press and crush the soil at the same time.

The multi-film perforating device 18 includes a gas burner-type perforated body 37 for forming a hole for implantation in the film M by contacting the multi-film M, and an elevating mechanism 38 for vertically moving the perforated body 37 up and down. Lifting mechanism 38
Has a parallel link 39 connected to a perforated body 37, a cam roller 40 is pivotally mounted on an upper link of the parallel link 39, and the cam roller 40 rolls on the outer periphery of a cam plate 41 provided on the crankshaft 27. It is configured as follows.

A concave portion 41 a is formed in a part of the cam plate 41 in the circumferential direction. The cam plate 41 rotates by the rotation of the crankshaft 27, and a cam roller 40 rolling on the outer periphery of the cam plate 41 is formed. By dropping into the concave portion 41a, the perforated body 37 is lowered via the parallel link 39, whereby the perforated body 37 comes into contact with the multi-film M to burn off the film M.

The perforated body 37 may be of an electric heating coil type or a type provided with a cylindrical cutter blade, instead of the gas burner type. In the multi-film perforating device 18, the multi-film M
If water droplets are on the top, even if it comes into contact with the perforated body 37, the temperature may be locally lowered and not completely burned out,
In this case, when the seedling N is planted by piercing the planting body 22 as it is, the remaining film debris (residue) Ms is involved and buried in the ridge, and when the opener 31 is opened, the seedling is placed on the buried residue Ms. Will be released. When this occurs, there is a possibility that the residue Ms of the film covers the lower side of the root pot of the seedling N to support the root growth.

Therefore, in the transplanter 1 of the present invention,
As described above, when the transplantation hole is not properly cut through by the perforated body 37, a passage (cut) for the root of the seedling N to extend downward is formed in the residue Ms of the film, and the growth of the seedling N is favorably performed. I can do it. The opener 31 of the implant 22 has a cut forming device 4 for forming the cut.
The notch forming tool 44 is provided with a pair of front and rear cutting blades 45 having front and rear outer cutting edges, respectively, provided on the outer surfaces of the front and rear openers 31.

Each of the front and rear cutting blades 45 is disposed substantially at the center in the left-right direction of the opener 31, and the upper end thereof is located near the upper surface of the ridge R when the opener 31 enters the ridge.
The lower end protrudes slightly below the lower end of the opener 31 and is formed in a tapered shape substantially along the outer surface of the opener 31. In the case where the film residue Ms remains at the transplant hole forming site of the multi-film M, when the implant 22 rushes into the ridge R through the transplant hole, the tip of the cutting blade 45 becomes the residue Ms.
To form a notch in the front-rear direction.
The cut is widened by the cutting blade 45 while s is directly wound into the ridge. When the opener 31 is opened, the cutting blade 45 cuts the cut even further, and further divides the residue Ms left and right.

At this time, the seedlings N to be planted are released onto the notched residue Ms, and the roots of the seedlings N can extend downward through the cuts, which adversely affects the root growth. The influence of the residue Ms is almost eliminated when the residue Ms is completely divided.
In this embodiment, the lower end of the cutting blade 45 is connected to the opener 31.
Is protruded below the lower end of the opener 31, if it is within a range in which a cut can be formed in the residue Ms by the cutting blade 45 when the opener 31 is inserted into the ridge R and opened, the same as the lower end of the opener 31, Alternatively, they may be arranged slightly above.

FIG. 6 shows a second embodiment of the present invention, in which a notch forming tool 44 is constituted by a pair of piercing needles 47 provided on front and rear openers. The piercing needle 47 is fixed to the lower end of the front and rear opener 31 so as to protrude downward. The piercing needle 47 pierces the residue Ms of the film by piercing the opener 31 into the ridge R, and the residue Ms remains in the ridge as it is. After being entangled, the opener 31 is opened to tear the residue Ms back and forth by the piercing needle 47 to form a cut.

Thus, similar to the first embodiment,
The roots of the planted seedlings N can extend downward through the cuts in the residue Ms, and good seedling growth can be expected. The present invention can be appropriately changed in design without being limited to the above embodiment. For example, the cutting blade of the removing means, the number of piercing needles, the mounting position in the left and right direction can be appropriately changed, and the front and rear side surfaces of the opener In addition, it can be provided on the left and right side surfaces. Further, it can be changed as appropriate, for example, by making the cutting edge of the cutting blade into a saw blade shape, or by providing a plate-like member having a sharpened lower end instead of a piercing needle.

In the above-described embodiment, the walking type transplanter is shown. However, the present invention can be applied to a riding type transplanter and not only to a single-row transplant but also to a multi-row transplant.

[0032]

As described above in detail, according to the present invention, when a hole for transplantation cannot be completely formed in a multi-film by a perforated body, the hole is left on a ridge by a notch forming tool. A notch is formed in the residue of the film, and the root of the seedling can extend downward through the notch, thereby enabling good growth of the seedling.

[Brief description of the drawings]

FIG. 1 is a side view of a main part according to a first embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a side view of an implant and a cut forming tool.

FIG. 4 is a bottom view of the same.

FIG. 5 is an overall side view of the transplanter.

FIG. 6 is an operation view of a notch forming device according to a second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplant machine 22 Planting body 37 Perforated body 44 Notch forming tool 45 Cutting blade

Claims (3)

[Claims] 1. A perforated body (2) for running along a ridge (R) on which a multi-film (M) is laid and forming a hole for transplantation by contacting the multi-film (M). 37) and a planting body (22) having an opener (31) for planting a seedling (N) held therein by rushing into the ridge (R) through the transplanting hole and opening. In the above, a multi-film (M) formed at a site where a hole for transplantation is formed by an operation of planting a seedling (N) with the opener (31).
A transplanter, characterized in that a cut forming tool (44) for forming a cut corresponding to a position below the seedling (N) in the residue (Ms) is provided in the opener (31). 2. The notch forming tool (44) pierces the residue (Ms) of the multi-film (M) by pushing the opener (31) into the ridge (R) and opens the opener (31).
2. The transplanter according to claim 1, wherein the incision is formed by opening the incision. 3. The notch forming device (44) includes a cutting blade (45) provided on an outer surface of a lower end portion of the opener (31) and having a cutting edge directed in an opening and closing direction of the opener (31). The transplanter according to claim 1 or 2, wherein