JPH1156023A - Transplanter for seedling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transplant seedlings raised in a multiple pot, in a state of an individual pot seedling or of a seedling with soil while arbitrarily and simply changing intrarow spacing. SOLUTION: A thin film releasing apparatus 15 and a transplanting conveyor 16 are installed on a machine body 10. Continuous pots 7 are pulled out from a continuous multiple pot 1 placed on the machine body 10 through a pair of guide plates 32. Two thin films 3A and 3B of the continuous pots are released by the thin film releasing apparatus 15 and seedlings 8 with soil are taken out from pot bodies 6. The leaf parts 8a of the seedlings 8 are nipped by a transplanting conveyor 16, the seedlings with soil are transported to the rear of the machine body. The transporting speed is set approximately at the same speed as the moving speed of the machine body 10. The position of the seedlings with soil based on the surface of a field is raised and the seedlings 8 with soil are drawn out from the transplanting conveyor 16 to a transplanting channel formed by an opener under the machine body 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a seedling grown in a collecting pot in which pots are gathered, in the form of individual potted seedlings placed in pots or in the form of soiled seedlings taken out of pots. The present invention relates to a transplanter for continuously planting on a field surface.

[0002]

2. Description of the Related Art For example, Japanese Patent Publication No. 54-283275 and Japanese Patent Publication No. 58-11817
There is a continuous collecting pot described in Japanese Patent Publication No. This one is
Square or hexagonal cylindrical pots formed by developing a thin film such as paper or paper are connected with a connecting piece to form a continuous pot, and the continuous pots are overlaid with a water-soluble adhesive. A large number of pots appear in a honeycomb shape by being expanded when used as a knitting state when not in use, and are kept in this expanded state and packed in a seedling box for soil filling. By sowing, a large number of seedlings can be intensively raised.

According to the seedling raising method using the continuous collecting pot, the rooting does not occur between the seedlings because the seedlings grow independently in the pot, and the water-soluble adhesive is degraded by watering during seedling raising. After raising the seedlings for several days, when one end of the continuous pot is pulled, the stacked continuous pots can be easily separated and pulled out in a line. Therefore, conventionally, in general, the continuous pots are drawn out in a row, and the seedlings are transplanted together with the pots while maintaining the continuous state.
And Japanese Patent Application Laid-Open No. 8-89028 describe a dedicated transplanter for that purpose. In this apparatus, a continuous collecting pot having finished raising seedlings is placed on an airframe provided with an opener forming a planting groove on the rear side in the traveling direction, and a continuous pot (seedling) drawn out in a row from this continuous collecting pot is placed. It is designed to be continuously fed into a planting groove formed by an opener in accordance with the movement of the airframe, and is widely used as a simple transplanter.

However, in the above-mentioned continuous collecting pot, the length of the connecting piece for connecting the pots to each other is limited by the width of one side of the pot because the pots are densely assembled by overlapping the continuous pots. Therefore, when trying to continuously transplant using the simple transplanter described in the above-mentioned publications, the pitch between the strains is restricted by the connecting piece, and depending on the type of planted crop, In some cases, the pitch between stocks greatly deviates from a desired value, and it has been necessary to abandon the use.

[0005] In order to solve this problem, a continuous pot drawn in a row is divided in a connecting piece in the middle of the pulling, and the separated pots (individual pot seedlings) are transplanted independently. That's good, and as such a transplanter, for example,
Japanese Patent Publication No. 55-30805 or Japanese Patent Publication No. 63-6
There is one described in Japanese Patent No. 1886. Among these, the former transplanter arranges two feeding means for pinching and sending out a pot body along a drawing direction of a continuous pot on a machine body having a ground contact wheel (rolling wheel), and the rear side of the drawing direction. The feeding speed of the front feeding means was increased with respect to the feeding means, tension was applied to the connecting piece, the connecting piece was divided, and the individual pot seedlings were released from the falling chute to the field surface and planted. In the latter transplanter, a row of continuous pots, the preceding potted plant is pinched and pulled out by a rotating transplanting rod, and at the same time, the subsequent pot is stopped by a stopper to divide the connecting piece. In this method, the separated individual pot seedlings are planted on the field surface by the movement of the transplanting rod, and in any transplanting machine, the pitch between the strains can be arbitrarily changed by changing the speed at which the connecting pieces are separated. Will be able to

[0006]

However, according to the transplanter described in the above-mentioned Japanese Patent Publication No. 55-30805,
The individual pots and seedlings that fall through the dropping chute are subjected to the inertial force of the body movement, so that the individual pots and seedlings are applied with a lateral force at the same time as they land on the field surface, and maintain their standing posture. There was a problem that was difficult. Also,
According to the transplanter described in JP-B-63-61886, there is a problem that the transplanter itself is complicated and large-scale, and it is difficult to use it easily.

[0007] As a collecting pot, a paper or plastic seedling tray formed by integrally molding a large number of pots (pots) has existed for a long time. In other words, the seeds are taken out from each pot and transplanted in the state of seedlings with soil, and therefore, the above-mentioned problem of the pitch between strains does not occur. However, such a transplanting machine requires a transplanting rod that performs a complicated movement, such as sandwiching a seedling taken out from a seedling raising tray, transferring the seedling to a field surface, and planting the seedling (for example, Japanese Utility Model Laid-Open No. 5-23816, 9-1
No. 54331) and the above-mentioned JP-B-63-6188.
As with the transplanter described in Japanese Patent Application Publication No. 6-64, the transplanter itself is complicated and large-scale, and it is difficult to use it simply.

The present invention has been made in view of the above-mentioned conventional problems. It is an object of the present invention to convert seedlings grown in a collective pot into individual pots or soild seedlings on a field. It is an object of the present invention to provide a simple transplanter that can be stably planted at an arbitrary pitch between strains.

[0009]

In order to achieve the above-mentioned object, the present invention relates to a transplanting conveyor which holds a leaf portion of a seedling and conveys it to the rear side in the advancing direction of the airframe, with the airframe movable on a field surface. The transfer speed of the seedling by the transplanting conveyor is set to be substantially the same as the moving speed of the machine body, so that individual potted seedlings or soiled seedlings are discharged directly from the transplanting conveyor onto the field surface. And

[0010] In the transplanting machine configured as described above, since individual pot seedlings or soil-bearing seedlings are released directly from the transplanting conveyor onto the field surface, the feeding speed of the pot body seedlings or soil-bearing seedlings to the transplanting conveyor is adjusted. This makes it possible to arbitrarily change the pitch between stocks. In addition, since the transfer speed by the transplant conveyor is set to be almost the same as the traveling speed of the machine, the seedlings are almost stationary with respect to the field surface, and the individual pot seedlings or soil released from the transplant conveyor are set. The attached seedling stably lands on the field without receiving any lateral force. Moreover, since the leaves of the individual potted seedlings or soil seedlings are sandwiched by the conveyor, during transport, the lower part of the leaves hangs vertically under its own weight and maintains a vertical state on the field surface. As a result, the falling is more reliably prevented. Further, since the transplanting rod for performing a complicated movement is not required, the structure does not become complicated and large.

According to the present invention, it is possible to provide a configuration in which the above-mentioned airframe is provided with rolling wheels that roll on the field surface in accordance with the movement of the airframe, and the rolling wheels are used as a power source of the transplant conveyor.
When the rolling wheels are used as a power source in this way, not only a special power source such as a motor is unnecessary, but also the moving speed of the machine body and the transport speed of the transport conveyor can be easily matched.

[0012] In the present invention, the transplanting conveyor is desirably constituted by a pair of belt conveyors, whereby the transport mechanism is simplified. Further, it is desirable that the transplanting conveyor is configured to be inclined downward toward the rear side in the traveling direction of the machine. In this case, seedlings can be released at a position close to the field surface, and individual potted body seedlings can be released. And the fall of the seedling with soil is more reliably prevented.

[0013] In the present invention, the airframe is provided with an opener for forming a planting groove on the rear side in the traveling direction, so that the seedlings released from the transplanting conveyor fall into the planting groove. Can be. By configuring the airframe in this way, transplantation can be performed simply as in the case of a conventional simple type transplanter.

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIGS. 1 to 4 show the overall structure of a transplanter according to a first embodiment of the present invention. This transplanter is for continuously transplanting seedlings 2 grown using a continuous collecting pot 1 and includes a body 10 provided with a ground slide 11 and an opener 12 on the rear side in a traveling direction F. Yes,
On the machine body 10, a pot seedling mounting portion 13 for mounting the continuous collecting pot 1 is provided at a front position in the traveling direction F thereof.

As shown in FIG. 5, the continuous collecting pot 1 is composed of two strip-shaped thin films 3A and 3B at a predetermined pitch.
And a continuous pot 7 in which the joints (connecting pieces) 5 are formed as pots 6 by a water-soluble adhesive is superimposed on each other. It is described in Japanese Patent Publication No. 58-11817, Japanese Patent Publication No. 4-79612, and the like, and further description is omitted here. The continuous collecting pot 1 is stored in a knitting state, and when expanded from this state, a number of pots 6 appear in a honeycomb shape, and when the seedlings are raised, they are kept in the expanded state and placed in a seedling raising box (not shown). . Then, the continuous collecting pot 1 placed in the seedling raising box is automatically subjected to soil filling and seeding by a dedicated soil filling sowing machine, and for example, the seedling management is intensively performed in a greenhouse. Each seedling 2 grows independently in the pot body 6 as described above, so that rooting does not occur mutually, and the water-soluble adhesive is degraded by watering during seedling raising.
Therefore, after raising the seedlings, the continuous collecting pot 1 is placed on the pot seedling mounting portion 13 of the machine body 10 and one end of the continuous pot 7 is pulled.
The superimposed continuous pots 7 can be easily separated and can be pulled out in a row as shown in FIG. In addition, the continuous collecting pot 1 may be transferred from the seedling box to the pot seedling mounting portion 13 or may be placed on the pot seedling mounting portion 13 together with the seedling box. Covers the seedling box with a connecting plate (not shown) for connecting the inside and outside of the seedling box to facilitate movement of the continuous pot 7.

Returning to the original description, the structure of the transplanter will be further described.
The forward side in the traveling direction F is referred to as the front side of the fuselage, and the side in the opposite direction is referred to as the rear side of the fuselage.) In this order, the continuous seedlings 7 drawn from the seedling mounting portion 13 are aligned and guided in a line. Information section
14, a thin film peeling device 15 for peeling the two thin films 3A and 3B of the continuous pot 7 drawn out from the pot seedling guide portion 14 right and left to expose the seedlings 2 in the pot body 6 with soil, and a thin film peeling device A transplanting conveyor 16 is provided for nipping and transporting the seedlings 8 with soil delivered from the device 15 to the rear side of the machine body in a standing posture.

The fuselage 10 has a pair of left and right first ends, one end of which is fixed to the ground slide 11 using a common shaft 20 (FIG. 4), and the other end of which extends toward the front of the fuselage. Support frame
21 and a second support frame 22, a first support frame
One end is connected to 21 using a shaft 23 (FIG. 4),
It comprises a U-shaped handle frame 25 having an intermediate portion connected to the second support frame 22 using a shaft 24 (FIG. 3), and a support plate 26 fixed to the upper surface of the second support frame 22. .
The second support frame 22 is arranged inside the first support frame 21 so as to be inclined upward from the ground slide 11 toward the front side of the fuselage.
The support plate 26 on the top 22 is inclined downward toward the rear of the fuselage.

Between the pair of first support frames 21,
An axle 28 is bridged using bearings 27 (FIG. 4),
Rolling wheels 29 are attached to both ends of the axle 28 which is pulled out on both sides of the support frame 21. The rolling wheel 29 is slightly in contact with the field surface G when the ground slide 11 is brought into full contact with the field surface G.
Therefore, when the ground slide 11 is brought into contact with the field surface G and the airframe 10 is slid, the rolling wheels 29 roll on the field surface G.

The ground slide 11 has a boat-like shape as shown in FIG.
Is directed toward the front of the fuselage. A slit 30 formed by cutting a predetermined depth from the rear end toward the inclined wall 11a is provided at an intermediate portion in the width direction of the ground slide body 11. The slit 30 is used as an outlet for feeding the soil seedling 8 conveyed by the transplant conveyor 16 to the field surface G, and is formed to have a minimum width necessary for allowing the soil seedling 8 to pass without difficulty. Have been. Further, the opener 12 has a box shape having a closed front end at an acute angle and an open rear end, and the sharpened portion 12a of the front end is directed toward the front of the fuselage and the internal space thereof is aligned with the slit 30. , And is fixed to the lower surface of the ground slide 11. Therefore, the soild seedling 8 having passed through the slit 30 enters the opener 12 as it is, and lands on the bottom of the planting groove S (FIG. 2) formed by the opener 12. Note that a pair of mulling plates 31 are attached to the ground sliding body 11, and the pair of mulling plates 31 extend rearward of the machine body 10 at an interval sandwiching the slit 30.

The pot / seedling guide unit 14 includes a pair of left and right guide plates 32 erected on a support plate 26 of the machine body 10. The pair of guide plates 32 have a sufficiently large spread on the front side of the fuselage, and are arranged in a C-shape so as to form a narrow passage opening 33 on the rear side of the fuselage. The drawn continuous bowls 7 are drawn out in a row through the narrow passage openings 33 of the pair of guide plates 32.

The thin film peeling device 15 is provided with a potted seedling guiding section.
A pair of guide members 34 arranged opposite the passage openings 33 of 14
And a pair of pull-out rollers 35A, 35B arranged outside the pair of guide plates 32 of the potted seedling guide section 14, and a pair of pull-out rollers 35A, 35B.
Two take-up reels 36A and 36 arranged closer to the front of the fuselage
B. The pull-out roller pairs 35A, 35B and the take-up reels 36A, 36B are driven to rotate synchronously by a drive mechanism 40 (FIG. 8), which will be described later. The thin films 3A, 3B are drawn around the guide member 34 by the rotation of the respective pull-out roller pairs 35A, 35B, drawn out toward the front of the fuselage, and wound up on the corresponding take-up reels 36A, 36B. In addition, each drawer roller pair 35
The rollers constituting A and 35B are provided with irregularities such as serrations on their surfaces in order to increase frictional resistance with the thin films 3A and 3B.

When the rotation speed of each of the winding reels 36A and 36B is constant, the peripheral speed changes according to the winding number (winding diameter) of the thin films 3A and 3B, and the winding speed and the pull-out roller pair 35A, When the take-up reels 36A, 36B are forcibly rotated as they are, a difference is generated between the drawing speeds of the thin films 3A, 3B by the thin film 35B. Problems such as cutting of the thin films 3A and 3B occur. Therefore, in the first embodiment, FIG.
As shown in the figure, the reel body 37 of each take-up reel 36A, 36B
And the coil spring between the two
It is connected by 39. By configuring the winding reels 36A and 36B in this manner, the coil spring 39 is deformed in the winding direction in accordance with the increase in the winding diameter, and the reel body 37 is rotated.
Is rotated with respect to the rotating shaft 38, and the winding speed is adjusted so as to match the drawing speed of the thin films 3A, 3B by the drawing roller pairs 35A, 35B. The rotating shaft 38 is supported by a gear box 41 for a thin film peeling device described later via a pair of bearings 41a.

The gear box 41 for the thin film peeling device is fixedly provided on the second support frame 22 of the machine body 10 as shown in FIG. 3, and the support plate 26 is commonly used as the upper plate of the gear box 41. Have been. On the lower surface of the gear box 41, a small gear box 42 is provided.
As shown in FIGS. 4 and 8, a horizontal shaft 43 extending horizontally in the width direction of the body 10 is rotatably supported by the 42. The horizontal shaft 43 is provided with a sprocket 44 at one end thereof protruding out of the small gear box 42. The sprocket 44 has a chain hung on a sprocket 45 attached to the axle 28 for the rolling wheel 29. 46 has been multiplied.
On the other hand, a bevel gear 47 is attached to the other end of the horizontal shaft 43 introduced into the small gear box 42. The bevel gear 47 has a lower end of a rotating shaft 38 (FIG. 7) of one take-up reel 36B. The bevel gear 48 attached to the section is engaged. That is, the rotation of the rolling wheel 29 is controlled by both sprockets 45 and 44.
, And transmitted to the horizontal shaft 43 via the chain 46, and further transmitted to the rotary shaft 38 via both bevel gears 47 and 48.

As shown in FIG. 8, a sprocket 49 attached to the rotating shaft 38 of each of the take-up reels 36A and 36B, and a rotating shaft 50 of each of the pull-out roller pairs 35A and 35B are provided in the gear box 41, as shown in FIG.
Sprocket 51 and gear 52 mounted on the sprocket
A power transmission mechanism 54 including a chain 53 connecting 49 and 51 is provided. The power transmission mechanism 54, the horizontal shaft 43, the chain 46, the rolling wheels 29, and the like constitute the driving mechanism 40, and the rolling wheels 29 serve as a driving source for each of the pull-out roller pairs 35A, 35B and each of the winding reels 36A, 36B. Used. Rolling wheel 29
As described above, the ground slide 11 is brought into contact with the field surface G, and the aircraft 10 is slid in the traveling direction F, thereby making the field surface G
It rolls on the upper part, and accordingly, each drawer roller pair 35A, 35B and each take-up reel 36A, 36B rotate according to the sliding of the body 10. The driving mechanism 40 controls the two thin films 3 by the thin film peeling device 15 with respect to the sliding speed of the body 10.
The gear ratio or pulley ratio is set so that the peeling speed of A and 3B is sufficiently reduced.

On the other hand, the transplanting conveyor 16 comprises a pair of belt conveyors 60 spaced from each other so as to hold the leaves 8a of the soiled seedlings 8 fed from the thin film peeling device 15. The pair of belt conveyors 60 are positioned so that their starting ends approach the pair of guide members 34 of the thin film peeling device 15, and their ends are positioned near the rear end of the ground sliding body 11 of the machine body 10. I have. Then
The pair of belt conveyors 60 are rotatably driven by a drive mechanism 62 (FIG. 8) provided in a conveyor gear box 61 disposed above the ground slide 11.

More specifically, conveyor gear box 61
Are fixed to the upper ends of brackets 63, 64 (FIG. 3) extending upward from the ground slide 11 and the second support frame 22, and the whole is supported by the support plate 26 on the second support frame 22.
It is inclined downward toward the rear of the aircraft.
A pair of rotating shafts 65 are mounted on the gear box 61 on the front side (front side of the fuselage) so as to be rotatable via bearings (not shown), and on the rear side (rear side of the body). )
, A pair of rotary support shafts 66 are fixedly mounted. The rotation shaft 65 and the rotation support shaft 66 are connected to a gear box.
It extends in a direction perpendicular to the upper and lower surfaces of the gear box 61, and each lower end portion is projected below the gear box 61.
A driving pulley 67 is attached to the lower end of each rotating shaft 65 so as not to rotate, and a driven pulley is attached to the lower end of each rotating shaft 66.
68 are rotatably mounted.
An endless belt 69 is wound between the driven pulley 68 and the driven pulley 68. The endless belt 69 has a structure in which a flexible material, for example, a plastic foam, is arranged at least on the surface portion thereof, and the pair of belt conveyors 60 make the flexible surface portion of the endless belt 69 slightly contact. The mutual interval is set.

As shown in FIGS. 3 and 4, a small gear box 70 is provided on the upper surface of the conveyor gear box 61. The small gear box 70 extends horizontally in the width direction of the machine body 10. The horizontal shaft 71 is rotatably supported. The horizontal shaft 71 is provided with a sprocket 72 at one end thereof protruding out of the small gear box 70, and the sprocket 72 has a chain hung on a sprocket 73 attached to the axle 28 for the rolling wheel 29. 74 has been multiplied. On the other hand, a bevel gear 75 is attached to the other end of the horizontal shaft 71 introduced into the small gear box 70, as shown in FIG. 8, and this bevel gear 75 extends upward from inside the gear box 61. A bevel gear 77 attached to the upper end of the intermediate shaft 76 is engaged. That is, the rotation of the rolling wheel 29 is transmitted to the horizontal shaft 71 via both sprockets 73 and 72 and the chain 74, and further transmitted to the intermediate shaft 76 via both bevel gears 75 and 77.

On the other hand, in the gear box 61, as shown in FIGS. 4 and 8, an intermediate gear 78 attached to the intermediate shaft 76 and a gear pair 79 attached to the rotary shaft 65 for the drive pulley 67. A power transmission mechanism 80 including the above is provided. The power transmission mechanism 80, the intermediate shaft 76, the horizontal shaft 71, the chain 74, the rolling wheels 29, and the like constitute the driving mechanism 62, and the rolling wheels 29
It is used as a drive source for the transplant conveyor 16 in the same manner as the thin film peeling device 15. The gear ratio or pulley ratio of the driving mechanism 80 is set so that the transplanting conveyor 16 conveys the seedlings 8 with soil at the same speed as the sliding speed of the body 10.

Hereinafter, the transplanting operation by the transplanting machine configured as described above will be described. At the time of transplantation, the continuous pot 7 is pulled out from the continuous collecting pot 1 previously placed on the pot seedling mounting portion 13, and the two thin films 3A and 3B on the end side are manually peeled off to an appropriate length. Each of the thin films 3A, 3B is drawn out to the front side of the fuselage by bypassing the guide member 34 of the thin film peeling device 15, and the corresponding take-up reels 36A, 36B are passed through a pair of pull-out rollers 35A, 35B.
One end of each is stopped on the reel body 37 of FIG.
At this time, the continuous pot 7 is set in a state of being pulled out to the rear side of the machine body through the passage openings 33 of the pair of guide plates 32 of the pot seedling guide section 14.

After the above preparation is completed, the handle frame 2 of the body 10
5, the aircraft 10 is advanced in the traveling direction F while the ground slide 11 is brought into full contact with the field surface G. Then the aircraft
The rolling wheel 29 attached to 10 rolls on the field surface G, and its rotation is simultaneously transmitted to the thin film peeling device 15 and the transplanting conveyor 16 via the respective drive mechanisms 40 and 62 (FIG. 8). That is, the pair of pull-out rollers 35A, 35B of the thin film peeling device 15 are
B, and a tensile force is applied thereto, whereby the continuous bowl 7
Is applied in the direction of peeling, and the joint portion 5 (FIG. 5) of the two thin films 3A and 3B is continuously peeled to the left and right. By peeling off the two thin films 3A and 3B, the seedlings 2 in each pot 6 are removed.
Are successively exposed as soiled seedlings and are fed one by one toward the transplanting conveyor 16 as soiled seedlings 8, while the peeled thin films 3A and 3B are gradually wound up on the corresponding winding reels 36A and 36B. . At this time, the peripheral speed of each of the take-up reels 36A and 36B is automatically adjusted by rotating the reel body 37 relative to the rotating shaft 38 in accordance with the increase in the take-up diameter, as described above. , 3B are constant.

On the other hand, the transplanting conveyor 16 to which the rotation of the rolling wheel 29 is transmitted by the driving mechanism 80 receives the rotation by the rotating shaft 65 and rotates the driving pulley 67, whereby the endless belt 69 of the pair of belt conveyors 60 is rotated. Rotates. The seedling 8 with soil fed out from the thin film peeling device 15 has a start end portion of the belt conveyor 60 arranged close to the guide member 34, and there is a recoil at the time of peeling. Entering between the endless belts 72, the transplant conveyor 16
The leaf portion 8a of the soiled seedling 8 that has entered is pinched and transported to the rear of the machine. The transfer speed of the transplanting conveyor 16 is set sufficiently higher than the peeling speed of the two thin films 3A and 3B by the thin film peeling device 15 as described above.
As a result, the soiled seedlings 8 are transported at an interval (pitch) larger than the interval between the pots 6 in the continuous pot 7.

Since the leaves 8a of the soiled seedlings 8 being conveyed to the rear side of the machine by the transplanting conveyor 16 are held between them, as shown in FIG. 2, the lower part of the leaves 8a is under its own weight. It hangs down vertically. Since the transplanting conveyor 16 is inclined downward toward the rear side of the fuselage, the vertically hung portion of the soiled seedling 8 is partially cut off from the slit 30 of the ground slide 11 (FIG. 6). Through the planting groove S formed by the opener 12. The soild seedling 8 lands at the bottom of the planting groove S when it is transported to near the end of the transplanting conveyor 16, is released (released) from the transplanting conveyor 16 as it is, and rises at the bottom of the planting groove S. Thereafter, the fuselage 10 is also released from the opener 12 in accordance with the progress of the fuselage 10, and the root block 8b is completely embedded in the soil brought by the earthing board 31. Soiled seedling 8
Is transported at a larger interval (pitch) than the mutual interval of the pots 6 in the continuous pot 7 as described above, so that the pitch between the seeds 8 with the soil planted on the field surface G is sufficiently large. .

[0034] Thus, the conveying speed V _B and the same speed of the soil with seedlings 8 by the sliding velocity V _A and portability conveyor 16 of the fuselage 10 (V
_A = V _B ), so that the soiled seedling 8 being conveyed by the transplant conveyor 16 is stationary at a certain position L with respect to the field surface G, as shown in FIG. Therefore, as the airframe 10 continues to slide at the same speed _VA , the soild seedling 8 descends above the rest position L and is placed vertically on the bottom of the planting groove S, as shown in FIG. And is released from the transplant conveyor 16 as it is. That is, the soiled seedling 8 is attached to the airframe 10 or the transplanting conveyor 16 when the landing.
No lateral force acts on the seedlings 8, thereby preventing the soiled seedling 8 from falling down. The soil around the planting groove S formed by the opener 12 is, as shown in FIG.
It collapses with the passage of 12, and joins at a point P slightly separated from the rear end of the opener 12 (), but the soild seedling 8 lands just before the joining point P (), so it joins. The root block portion 8b of the seeded seedling 8 is smoothly embedded in the returned soil without falling over the soil ().

FIGS. 10 and 11 show the overall structure of a transplanter according to a second embodiment of the present invention. A feature of the second embodiment is that a transport conveyor 85 for sandwiching and transporting the root block portion 8b of the seedling 8 with soil is disposed between the transplant conveyor 16 and the thin film peeling device 15 described above. It is in. In this case, the transport conveyor 85 is positioned so that the start end thereof approaches the guide member 34 of the thin film peeling device 15, while the transfer conveyor 16 is
It is arranged so as to wrap its start end above the end of the 85.

In the second embodiment, the transport conveyor 85 comprises a pair of belt conveyors 86 as in the case of the transplant conveyor 16, and the pair of belt conveyors 86 are connected to the root block 8b of the soiled seedling 8. Are set to be able to hold each other. This pair of belt conveyors 86
Here, a drive pulley 88 is provided at a lower end of a pair of rotating shafts 87 (FIG. 11) extending from the conveyor gear box 61, and a driven pulley 89 (FIG. 11) is mounted on the support plate 26 of the machine body 10. 90 are attached to each other, and an endless belt 91 is wound around the two pulleys 88 and 90, and the rotation of the drive mechanism 80 (FIG. 8) is transmitted to the rotation shaft 87 thereof. ing. The second embodiment has the same overall structure as the first embodiment except that a transport conveyor 85 is additionally provided. The same parts as those shown in FIG. 2 are denoted by the same reference numerals.

According to the second embodiment, the soiled seedling 8 fed from the thin film peeling device 15 is firstly held at its root block portion 8b by the pair of belt conveyors 86 of the transport conveyor 85 and the rear portion of the machine. Side, and then the leaves 8
a is sandwiched between a pair of belt conveyors 60 of the transplant conveyor 16 and further transported to the rear side of the machine. At this time,
Since the end of the conveyor 85 and the starting end of the transplant conveyor 16 are wrapped with each other, while the root block 8b of the seeded seedling 8 is held by the conveyor 85, the transplant conveyor 85 is closed.
16 sandwiches the leaf portion 8a of the soiled seedling 8, so that the soiled seedling 8 is reliably transferred from the transport conveyor 85 to the transplanting conveyor 16.

When the conveyor 85 is not provided as in the first embodiment, for example, as shown in FIG. When the portions overlap each other, when the transplanting conveyor 16 clamps the leaves 8a of the soiled seedlings 8 fed from the thin film peeling device 15, the seedlings 2 in the subsequent pot body 6 remaining as the continuous pots 7 are held.
Of the seedling 2 may be pulled out. In the case where the conveyor 85 is provided as in the second embodiment, for example, as shown in FIG. 13, the end of the conveyor 85 and the start of the transplant conveyor 16 do not overlap each other. And leaf portion 8a of soiled seedling 8 conveyed by conveyor 85 as shown in FIG.
In the case where the seedlings fall down to the front side of the machine, there is a risk that the delivery timing is shifted and the seedlings 8 fall from the transplanting conveyor 16.

In each of the above embodiments, the thin film peeling device 15 is provided before the transplanting conveyor 16 or the conveying conveyor 85,
Although the seedlings were taken out of the pot 6 of the continuous pot 7 by this thin film peeling device 15 and transplanted in the state of the seedlings 8 with soil, the present invention provides an individual pot seedling in which the seedlings 2 are placed in the pot 6. It may be transplanted in a state. In this case, instead of the thin film peeling device 15 on the airframe 10, for example,
A separating device as described in JP-A-30805 is provided. This separation device, as shown in FIG.
Two feeding means 100 and 101 are arranged along the drawing direction of the continuous pot 7 drawn from the continuous collecting pot 1 (FIG. 1), and the feeding means 101 on the front side is arranged with respect to the feeding means 100 on the rear side in the drawing direction.
Piece of the continuous bowl 7 (joined part)
5, a tension is applied to the connecting piece 5 to divide the connecting piece 5 along the cut. With this separating device, the seedling 2
Are continuously supplied to the transplanting conveyor 16 or the transport conveyor 85, and the transplanting conveyor 16 is provided with the individual potted plant seedling in the same manner as the above-described embodiment for the soiled seedling 8. The leaf 9a of the ninth leaf 9a is pinched and conveyed, and can be directly released into the planting groove S for planting.

Here, the feeding means 100 has a structure in which a pair of belt conveyors 105 in which an endless belt 104 is wrapped around two rollers 102 and 103 are arranged at an interval capable of holding the pot 6. , The pair of rollers 106
Are arranged at intervals so that the connecting pieces 5 can be reliably separated by applying a sufficiently large braking force to the subsequent pot body 6 by the feeding means 100.

In each of the above embodiments, the transplanter for the seedlings raised in the continuous collecting pot 1 has been described. However, the present invention is also applicable to the seedlings raised on a paper or plastic seedling tray. What you get. In this case, the seedlings are taken out from the seedling raising tray in advance, placed on the machine body 10, and the seedlings are transplanted one by one using an appropriate pushing means.
6 or the conveyor 85.

[0042]

As described above in detail, according to the seedling transplanter of the present invention, the machine capable of moving on the field surface has:
Providing a transplant conveyor that sandwiches the leaves of the seedlings and conveys them to the rear in the traveling direction of the machine, setting the conveying speed of the seedlings by the transplant conveyor to substantially the same speed as the moving speed of the machine, and directly from the transplant conveyor Since the seedlings are released on the field surface, they can be stably planted at an arbitrary pitch between plants in the state of individual potted seedlings or soild seedlings. Further, since the transplanting rod for performing a complicated movement is not required, the structure does not become complicated and large. Further, when the transplanting conveyor is installed on a machine body provided with an opener for forming a planting groove on the rear side in the traveling direction, the transplanting operation can be performed simply as in the case of the conventional simple type transplanting machine.

[Brief description of the drawings]

FIG. 1 is a plan view showing a main mechanism part extracted from a transplanter according to a first embodiment of the present invention.

FIG. 2 is a side view showing a main mechanism part taken out from the transplanter according to the first embodiment.

FIG. 3 is a side view showing the overall structure of the transplanter according to the first embodiment.

FIG. 4 is a plan view showing the overall structure of the transplanter according to the first embodiment.

FIG. 5 is a plan view showing the structure of a continuous pot containing seedlings to be transplanted according to the present invention.

FIG. 6 is a perspective view showing an assembling structure of a ground slide and an opener used in the present invention.

FIG. 7 is a sectional view showing a structure of a take-up reel in the thin film peeling apparatus used in the first embodiment.

FIG. 8 is a mechanism diagram showing a structure of a drive mechanism according to the first embodiment.

FIG. 9 is an explanatory diagram for sequentially explaining the transplantation status in the first embodiment.

FIG. 10 is a plan view showing a main mechanical part extracted from a transplanter according to a second embodiment of the present invention.

FIG. 11 is a side view showing a main mechanism portion removed from the transplanter according to the second embodiment.

FIG. 12 is an explanatory diagram for explaining the points to be noted when manufacturing the transplanting machine as the first embodiment.

FIG. 13 is an explanatory diagram for explaining the points to be noted in manufacturing the transplanter according to the second embodiment.

FIG. 14 is a plan view showing an example of a separating device for forming individual potted plants.

[Explanation of symbols]

1 continuous collecting pot, 2 seedlings, 5 joints, 6 pots, 7 continuous pots 8 soiled seedlings, 8a leaves, 8b root block,
Reference Signs List 9 individual pot body seedling 10 body, 11 ground sliding body, 12 opener 13 pot seedling placement section, 14 pot seedling guide section, 15 thin film peeling device 16 transplantation conveyor, 29 rolling wheel, 60 belt conveyor 62 driving mechanism for transplantation conveyor, 67 drive pulley,
68 Follower pulleys 100 and 101 Feeding means for separation device

Claims (5)

[Claims] 1. The seedlings raised in the collecting pot in which the pots are assembled are continuously placed on the field surface in the state of individual potted seedlings placed in the pots or in the state of seedlings with soil taken out from the pots. A transplanting machine for planting, provided on a body movable on a field surface, a transplanting conveyor for holding the leaves of the seedlings and conveying the seedlings rearward in the traveling direction of the machine, and controlling a transfer speed of the seedlings by the transplanting conveyor. A seedling transplanter characterized in that individual potted seedlings or soild seedlings are released from the transplanting conveyor directly onto the field surface at a speed substantially equal to the moving speed of the machine. 2. The vehicle according to claim 1, wherein the body is provided with rolling wheels that roll on a field surface in accordance with the movement of the body, and the rolling wheels are used as a power source of a transplant conveyor. Seedling transplanter. 3. The seedling transplanter according to claim 1, wherein the transplant conveyor comprises a pair of belt conveyors. 4. The transplanting conveyor according to claim 1, wherein the transplanting conveyor is inclined downward toward the rear side in the traveling direction of the vehicle.
Or a seedling transplanter according to 3. 5. The airframe is provided with an opener for forming a planting groove on the rear side in the traveling direction, and the seedlings released from the transplanting conveyor fall into the planting groove. The seedling transplanter according to any one of claims 1 to 4.