JPH02177823A - Raising seedling tray - Google Patents

Abstract

PURPOSE:To obtain a raising seedling tray usable for the manual transplantation of seedling by detachably fitting a bottom member to a main body of tray having plural through-holes corresponding to coils and closing the opened bottom of each cell with the bottom member. CONSTITUTION:A bottom member 202 is fit to a main body 201 of a tray in the case of raising seedling from seed or manual transplantation of seedling. In the case of using the raising seedling tray in relation to a planting machine, the bottom member is removed from the main body, the body is placed on a planting machine and seedling is extracted from the bottom of a cell 203.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a seedling-growing tray in which a plurality of cells are formed for storing and growing seeds of seedlings to be planted.

(Prior art) A conventional seedling tray is disclosed in, for example, Utility Model Application No. 1189/1989 (
It is also disclosed in Utility Model Application Publication No. 1988 (see Japanese Utility Model Publication No. 1983). The disclosed seedling growing tray has a thin plate shape, a concave shape, and a plurality of cells arranged in a line. This cell has an open top for inserting soil, a side wall formed in a cylindrical or rectangular shape, a bottom formed at the end of this side wall to form the bottom of the cell, and a bottom formed in the center of this bottom. and an outlet for discharging excess nutrient solution. Therefore, the cross section of each seedling cell is approximately U.
It is formed in a letter shape, and the bottom of the cell is generally closed. By using such a seedling growing tray, uniform seedlings can be produced in large quantities.

(Problem to be solved by the invention) However, when using conventional seedling trays, which are mostly manual, for automated work, the configuration of the automated equipment is severely restricted, making it difficult to achieve optimal functionality. becomes difficult. For example, when feeding seedlings into an automatic planting machine using a conventional seedling tray, the seedlings must necessarily be pulled upwards from the open top, and this process involves removing the stems of the seedlings. It is not suitable for mechanization because it involves delicate picking up work. therefore,
When conventional seedling trays are used, only the work of extracting the seedlings is done manually, which is an obstacle to promoting a higher degree of automation in the planting of seedlings.

On the other hand, with special seedling trays that can only be used with automatic seedling planting machines, there is a possibility that small-scale farmers who manually plant seedlings may not be able to use the seedling trays.

Therefore, the present invention can be used for manually transplanting seedlings in the same way as conventional seedling trays, and can also be advantageously applied when automating all operations from picking out seedlings from seedling trays, transporting them, and transplanting them. The purpose is to provide a tray for raising seedlings that can be used to raise seedlings.

(Means for Solving the Problems) In order to achieve the above object, the seedling-raising tray according to the present invention is a seedling-raising tray in which a plurality of cells are formed in which seeds of seedlings to be planted are stored and seedlings are raised. The present invention is characterized in that it comprises a tray body having a plurality of through holes, and a bottom body that is removably fitted to the tray body to close the open bottom of each cell.

(Function) According to the seedling tray with the above-described configuration, when raising seedlings from seeds or manually transplanting seedlings, the tray body and the bottom body can be used in a fitted state, and the tray can be used with a planting machine. When using a seedling tray in connection with this, the bottom body can be removed from the tray body, placed on a planting machine, and the seedlings can be pulled out from below the cells.

(Example) Hereinafter, an example according to the present invention will be described in detail based on the drawings.

Regarding Seedling Raising Tray Example 1 of Seedling Raising Tray First, a seedling raising tray 2 according to the present invention used in a planting machine will be described based on the drawings. As shown in Figure 3B of the third person, the seedling raising tray 2 has a two-stage separated structure, with the upper stage forming a tray body 201 that accommodates the soil, and the lower stage forming a tray body 201 that fits into the bottom of the tray body 201. Bottom body 202
is formed. The tray body 20+ is provided with cylindrical cells 203 arranged in a staggered or lattice pattern. This cell 203 has an open top 2 as shown in FIG. 4A.
04 and an open bottom part 205, and a through hole is formed in the tray body 201 by these open top part and open bottom part. The cell 203 formed by this through hole is not limited to a cylindrical shape, but may be formed, for example, in a hexagonal column shape. The distance between the open top portion 204 and the open bottom portion 205, that is, the thickness of the tray body 201 and the diameter of the cells 203 can be appropriately selected depending on the amount of culture soil to be accommodated. In addition, the bottom body 202 that constitutes a part of the seedling tray 2 includes
As shown in Figure B, a plurality of protruding cylindrical fitting portions 206 are provided on the bottom plate 214'' in a staggered or grid pattern to close the open bottom of each cell 203. This fitting part 2
06 is the cell 20 when fitted with the tray body 202.
3 to form the bottom of the cell 203, it has an inner diameter of the open bottom 205 of the cell 203 and an outer diameter of the gap. A discharge port 207 is provided at the top of the fitting portion 206 for discharging the excess nutrient solution supplied into the cell 203 to the outside.

Additionally, as shown in FIG. 4B, the fitting portion 206 is provided with an interior space 208 having a closed top 213 spaced apart from the bottom plate 214. As shown in FIG. By providing this internal space 208, the outlet 207 can be connected to the bottom surface 2 of the bottom body 202.
09, and as a result, the discharge efficiency of excess nutrient solution is improved. In other words, if the outlet is arranged on the same plane as the bottom surface, the outlet may be blocked by the mounting table that supports the bottom body 202, and there is a risk that the excess nutrient solution will not be efficiently discharged to the outside. There is. However, by configuring as described above, the excess nutrient solution can be efficiently discharged to the outside without the discharge port 207 being blocked by the mounting table.

Example 2 of Seedling Raising Tray Another example of the aforementioned seedling raising tray 2 will be described based on the drawings. As shown in FIG. 5A, the substrate 2 of the tray body 201
10 are provided with cylindrical cells 203 arranged in a staggered or lattice pattern. The cell 203 projects outwardly from the substrate 21.0 and has an open top 204 and an open bottom 205, as shown in FIG. 6A.

Furthermore, since the seedling growing tray shown here is formed with a thinner wall overall than the seedling growing tray shown in FIG. 4, it is possible to reduce the weight.

The bottom body 202 used in combination with the tray main body 201 shown in Figure 6A has the same structure as the bottom body already described (see Figures 3B and 4B), as shown in Figures 58 and 68. The explanation will be omitted.

Embodiment 3 of Seedling Raising Tray Still another embodiment of the above-mentioned tray body 20 will be described based on the drawings. As shown in Fig. 7, the tray body 2
By forming the hollow portion 211 between the cells 203 provided in 01, it is possible to reduce the weight compared to the tray body 201 shown in FIG. The effect can be increased. The reason for this is that the bottom body (not shown since the same one as in Figure 4B is used) is replaced by the tray body 2 shown in Figure 7.
01, the hollow part 211 is kept in a substantially sealed state by cooperation with the bottom plate of the bottom body.

Usage of the tray during germination The assembly of the tray body 201 and the bottom body 202 described above will be explained using the tray body and bottom body shown in FIGS. 6A and 6B as an example. As shown in FIG.
When the fitting part 206 of the bottom body 202 is inserted and fitted into the open bottom part 205 of No. 3, the cell 203 forming a cylindrical body and the fitting part 206
A soil storage portion 212 is formed by cooperation with the top of the soil. After forming in this way, a predetermined amount of culture soil and seeds are supplied into the culture soil storage portion 212, and a predetermined amount of nutrient solution is spread from above to grow seedlings.

Here, by using the bottom body 202 shown in Figures 4B and 6B, it is possible to grow seedling buds by stacking the seedling trays 2 in layers. At this time, as shown in FIG. 8, the sprouts that have grown from the seedling tray 2a placed in the lower stage are accommodated in the space 208 formed in the bottom body 202. 3 After sowing until sprouts (about 4-5 mm) appear
The seedling trays were placed in layers in a germination chamber for ~40 minutes, and then transferred to a greenhouse where the seedling trays were placed flat on a table (in that case, the seedling trays were not stacked) and were sprayed overhead. Give the nutrient solution evenly to grow the seedlings. Therefore, the interior space 208 needs to be sufficient to accommodate the buds, and it goes without saying that this will vary depending on the size of the buds.

Example 4 of Seedling Raising Tray Still another example of the aforementioned seedling raising tray 2 will be described below. As shown in FIG. 9, the cells 20 of the tray body 201
No. 3 has a tapered shape whose cross-sectional area decreases toward the tip, with the upper part forming an inverted truncated cone and the lower part forming a cylinder. Therefore, in order to make it easier to pull out the seedlings from the open top 204, the cells are shaped to open upward, and the size of the open top 204 is the same as that of the open bottom 205.
is larger than the size of Further, the bottom body 202 that is assembled with the tray body 202 has the same configuration as that described above, so the explanation thereof will be omitted.

Example 5 of Seedling Raising Tray As shown in FIG. 10, the fitting part 206 of the bottom body 202 is
It has a cylindrical shape surrounding the lower part of the cell 203 from the outside,
The upper part is open, and the bottom part has a discharge port 20.
7 is provided. Further, since the tray body 201 combined with the bottom body 202 has the same structure as that in FIG. 9, a description thereof will be omitted.

Example 6 of Seedling Tray As shown in FIG. 11, the cells 20 of the tray body 201
3 is formed in a tapered shape with a cross-sectional area increasing toward the tip.The two parts form a truncated cone, and the lower part forms a cylinder. Therefore, in order to make it easier to pull out seedlings with culture soil from the open bottom 205, the cells are formed to open downward, and the open bottom 205 is formed larger than the open top 204. The bottom body 202 combined with the tray body 202 has the same structure as that in FIG. 10, so a description thereof will be omitted.

The bottom used in the present invention does not necessarily need to be provided with a fitting part, and may be provided with only an outlet part for discharging excess nutrient solution to the outside. In this case, it is more preferable to provide a separate positioning means to ensure the positioning of the bottom body and the tray body in place of the fitting part.

Seedling Sampling Operation A method for extracting seedlings will be described below, taking the seedling growing tray 2 shown in FIG. 6 as an example. When the seedlings grow in the seedling tray 2, they are transplanted to the ridge.
It must be extracted from 3. A seedling extrusion device M220 as shown in FIG. 12 is used for this purpose. This seedling extrusion device 220 is composed of a support stand 221 that supports the tray body 202, and a push-out portion 222 that protrudes from the support stand 221. This push-out part 222 has a shape between the open bottom part 205 of the tray body 201 and the groove in order to uniformly push the entire bottom surface of the soil and prevent the seedlings from being pushed out from the open top part 204. , it is necessary that the height is at least higher than the height of the fitting part 206 of the bottom body 202. The seedling extrusion device 220 configured as described above is attached to the tray main body 201.
By pushing through the open bottom 205 of the seedling, the seedling can be pushed upward. As a result of this extrusion, the roots that have adhered to the walls of the cell 203 and made it difficult to remove the seedlings can be separated from the cells, making it possible to remove the seedlings very easily. Furthermore, since the extrusion area is larger than in the conventional case where the seedling extrusion device is inserted through the discharge port, the roots are not damaged.

By placing the seedling extrusion device with the above-mentioned configuration on the seedling planting machine (see Figure 2), the roots of the seedlings can be placed in the seedling tray in advance before the seedling tray is used for consolidating the seedling planting machine. Since it can be separated from the wall, work efficiency can be further improved. Further, even in the case of manual planting of seedlings without using a planting machine, the above-described seedling extrusion device can be effectively used.

The above explanation is not limited to the seedling tray shown in FIG. 6, and it goes without saying that the seedling pushing device 220 described above can also be applied to the seedling tray shown in FIGS. 7 to 10.

In order to most effectively exhibit the functions of the seedling-growing tray according to the present invention, it is particularly advantageous to use it in combination with an automatic planting machine described in detail below.

As shown in Figures 1 and 2 regarding the entire planting machine, the seedling planting machine Δ that uses a seedling tray according to the present invention includes a vehicle body 1 equipped with an engine 101 etc. to move it on the ridge, A seedling extraction device 3 for supporting a seedling tray 2 containing seedlings to be grown and selectively pulling out grown seedlings from the seedling tray 2, and a device for forcibly transporting the extracted seedlings to a predetermined position by vacuuming. It is composed of a forced seedling transportation device 4 and a transplanting device 5 for transplanting the transported seedlings to the ridge.
With this configuration, automation of seedling transplantation can be achieved.

Regarding the seedling extracting device, the seedling extracting device 3 used in the planting machine will be described below.

As shown in FIGS. 13 to 15, the seedling extraction device 3 includes a pedestal 301 that supports the seedling tray 2, and a pedestal 301 for selectively extracting seedlings from the open bottom 205 of the seedling tray 2 by moving below the pedestal. This color selection mechanism 302 and this color selection mechanism 3
02 and the forced seedling transport device 4, there is provided a transport pipe 303 for transporting the extracted seedlings to the downstream side.

Embodiment 1 of Seedling Extracting Apparatus The seedling extracting apparatus 3 shown in FIG. 13A will be described below. The pedestal 301 in this embodiment is fixed to the top of the frame of the vehicle body 1, and the seedling tray 2
(See FIG. 1). It is preferable that the opening 304 be formed to be slightly larger than the opening diameter of the open bottom 205 of the seedling tray.

The color selection mechanism 302 located below the pedestal 301 is
A sliding part 305 as a selection member that slides parallel to the lower surface of the pedestal 301 as a supporting member, and a sliding part 305 as a selection member that slides parallel to the lower surface of the pedestal 301 as a supporting member, and two-dimensionally move this sliding part in the X direction (long horizontal direction with respect to the seedling tray) and
It is composed of a drive section 306 for moving in the direction (perpendicular to the X direction) and a support base 307 disposed below the sliding section in correspondence with the pedestal 301 . The sliding portion 305 is composed of a band extending over the entire bottom surface of the tray, and this band is connected to a pair of drums 32 extending in the X direction.
It is wound around 0A and 0B, and moves in the X direction by the rotation of the drum to perform the function of sequentially selecting predetermined cells in the seedling tray. In this embodiment, since six horizontal rows are used, the sliding portion 305
Three selection holes 308 are provided in the selection hole 3.
08 has an interval corresponding to every other cell 203 in the X direction.

The drive section 306 includes a first guide means 309 for sliding the sliding section 305 in the X direction, and a second guide means 310 for sliding the sliding section 305 in the X direction. The second guide means 310 has two guide parts 321A and 321B extending parallel to the seedling tray and in the X direction. A pair of partially threaded feed screw portions are formed in one guide portion 321A, and the feed of the sliding portion 305 in the X direction is achieved by these screw portions. The other guide portion 321B simply guides the first guide means 309 in the X direction. A drive controllable motor 322 is provided at one end of the guide portion 321A, and this motor 322 is fixed to the frame of the vehicle body 1. The other end of the guide portion 321A is rotatably attached to the frame of the vehicle body 1. Therefore, motor 322
As the guide portion 3218 rotates by a predetermined amount, the first guide means 309 is moved by a predetermined amount in the X direction by screw feeding.

The first guide means 309 includes a pair of sending portions 3238 that are threadedly engaged with the threaded portion of the guiding portion 321, and a pair of sending portions that are engaged to slide along the feeding portions on the guide portion 321B side. 3
23B and the sliding portion 3 fixed to one side of the sending portion 323.
05 in the X direction by a predetermined amount, and a drum 3208B connected to the motor and having a sliding portion 305 wound thereon. The drums 3208,B are connected to the motor 324AB via rotating shafts provided on the drums 320A,B. The above-mentioned pairs of sending units 323A and B, motors 324A and B, and trams 320Δ and B are arranged on opposite sides of the seedling tray 2, respectively. As a result of this arrangement, the manual section 305 that is wrapped around the drum 320 is
It must have sufficient width and length in the X direction to move selection hole 308 from one end of the nursery tray to the other.

The support stand 307 has a plurality of openings 314 having a shape and arrangement corresponding to the opening 304 of the pedestal 301 and is fixed to the frame of the vehicle body 1. Furthermore, each opening 314 of the support stand 307 is arranged to correspond to each opening 304 of the pedestal 301, allowing the seedlings to pass therebetween. As shown in FIG. 16, a transport pipe 303 is connected to the lower surface of the support base 307. This transport pipe 303 is connected to the opening 314 of the support base 307.
A plurality of first branch pipes 315 connected to
a funnel-shaped convergence part 316 that bundles together the convergence part 316;
A second branch pipe 317 extends downstream from the main pipe 3, and a main pipe 3 extends from the second branch pipe 317 to the East Nekatsu seedling forced transport device 4.
It consists of 18. In this embodiment, the support base 307 has openings 314 arranged in 6 columns and 12 rows, so if 8 openings 314 (2 columns and 4 columns horizontally) are set in one bronc, there will be a total of 9 blocks. Can be divided. One block is composed of eight first branch pipes 315 and one second branch pipe 317. Therefore, these eight first branch pipes 315 are converged into one second branch pipe 317 via a funnel-shaped converging part 316. be done. Nine such configurations are provided in this embodiment, and three second branch pipes 317 in the elongated direction are connected to one
The main pipes 318 of the book are converged, so that one main pipe 318 is formed for every two rows in the elongated direction. In this case, the number of main pipes 318 is
matches the number of The reason for this configuration is that one of the three selection holes 308 formed in the sliding portion 305 receives two vertical rows of openings 304 (24 in the horizontal direction in this embodiment). This is because it slides as if holding it. The configuration described above is a specific example, and it goes without saying that, for example, the support base 307 can be configured into a desired block and the number of branch pipes can be changed accordingly.

In the seedling extraction device 3 in this embodiment, the opening 304 of the pedestal 301 and the opening 314 of the support pedestal 307 are arranged in one-to-one correspondence, and the sliding portion 305 is disposed between the pedestal 301 and the support pedestal 307. is configured to move in contact with each other.

The operation of this configuration will be explained below. First, seedling tray 2
is appropriately placed on the pedestal 301. At that time, the sliding part 30
The selection holes 308 of No. 5 are arranged in advance so as to correspond to the open bottom at one end of the seedling growing tray 2.

Next, the forced seedling transport device 4 disposed on the downstream side of the transport pipe 303 is driven to evacuate the inside of the transport pipe 303. As a result, the first seedlings are extracted from the open bottom end of the seedling tray. The seedling passes through the opening 314 of the support stand 307 through the selection hole 308, and then is sent into the transplanting device described later through the first branch pipe 315, the second branch pipe 317, and the main pipe 318, and the seedling is It will be done. After the seedlings have been extracted, a motor (in this embodiment 324B) by a predetermined amount to wrap a predetermined amount of the sliding portion 305 around the drum 320B. the result,
A new seedling is extracted from the cell 203 and sent to the transplanting device 5 through the transport pipe. While repeating such operations, the selection hole 308 of the sliding part is moved to the open bottom 205 at the other end of the seedling tray in the X direction. After that, the opening 304 and the selection hole 3 adjacent in the X direction
08, the motor 322 of the second guide means 310 is driven and the selected hole of the sliding portion 302 is moved by a predetermined amount in the X direction via the first guide means 309 by feeding the screw by a predetermined amount. As a result, new seedlings adjacent in the X direction are selected and extracted from the cell 203. After this seedling is sent out, the motor (324A in this embodiment) of the first guide means 309 is driven by a predetermined amount to move the sliding portion 3 by a predetermined amount.
05 into the tram 208, and align the selection hole 308 with the succeeding opening 304 adjacent in the longitudinal direction.

While repeating this operation continuously, select hole 3 of the sliding part.
08 to the open bottom 205 at the end of the seedling growing tray (the end on the guide! 321A side), and the seedling extraction work in this embodiment is completed.

This embodiment is not limited to the above-described configuration; for example, as shown in FIG. 14B, three second selection holes 308A are provided in the sliding portion 305 in addition to the three selection holes 308. and is suitable. These second selection holes 3088 are provided at positions shifted by one row from the selection holes 308 in the X direction.
After all the seedlings in the row that 08 is responsible for are pulled out, the tram is further rotated to a position where the remaining row of seedlings can be pulled out, that is, a position that is at least wider than the vertical width of the tray relative to the selection hole 308. It is set in. Therefore, drum 32
Since all the seedlings can be pulled out while continuously rotating the device, the second guide means 310 can be omitted, and the device can be configured more simply.

The number and positional relationship of the selection holes described above can be changed as appropriate depending on the number and arrangement of seedling trays.

Embodiment 2 of Seedling Extracting Apparatus The seedling extracting apparatus 3 shown in FIG. 14 will be described below. The pedestal 301 as a support member in this embodiment is
It is fixed to the top of the frame of the vehicle body, and
It has a plurality of openings 304 having a shape and arrangement corresponding to the open bottom 205 of the seedling tray 2 (see FIG. 1). Seedling selection mechanism 302 arranged below the pedestal 301
consists of a sliding part 305 as a selection member that slides parallel to the lower surface of the pedestal 301, and a driving part 306 for moving this sliding part two-dimensionally in the X direction and the X direction. has been done. The sliding portion 305 has a hexahedral shape, and is provided with three selection holes 308 penetrating from the sliding surface toward the bottom surface. Each of the selection holes 308 has a spacing corresponding to the cells 203 of the seedling tray in the X direction, and is connected to the three transport pipes 303 via a flexible pipe on the bottom side. ,
It is comprised of a first guide means 309 for sliding the sliding part 305 in the X direction, and a second guide means 310 for sliding the sliding part in the X direction. First guide means 309
includes a first feeding section 330 that engages with the sliding section 305, and a first guiding section 331 that guides the first feeding section 330 in the X direction. The first guide part 331 is connected to the pedestal 3
The first guide bodies 332A and 332B are disposed on opposite sides of 01 and extend in the X direction, and this first guide body 33
28, a first guide belt 333 connecting B and the first feeding section 330.

Each of the first guide belts 333 forming a pair is disposed on opposite sides with the pedestal 301 in between and extends in the X direction.
8. B is connected to Boo'J335A and B, which are rotatably attached to both ends of the first feeding section, respectively.

Therefore, the first guide belt 333 moves with the rotation of the pulleys 3348B arranged at both ends, and the first sending section 330 can be moved in the X direction following this movement.

One end of the first guide body 332^ of the pair of first guide bodies 332A and 332B is connected to a motor 3 whose rotation can be freely controlled.
36, and the other end is rotatably attached to the frame of the vehicle body 1. The other first guide body 3
Both ends of 32B are rotatably attached to the frame of the vehicle body 1.

The pair of first sending parts 330 penetrate the sliding part 305 and
It extends in the direction and makes sliding contact inside the sliding portion 305. What should be noted during this penetration is that the first sending section 330 does not cross the selection hole 308 of the sliding section 305. The sliding part 30 is moved by the motor 336.
Since the first guide belt 333 must be moved by a predetermined amount, it is preferable that the first guide belt 333 be a toothed belt, and accordingly, it is also preferable that the boots 1J3348B and 335A, B be toothed pulleys.

Since the second guide means 310 has the same configuration as the first guide means, only the different parts will be briefly described below. This means 310 has a second feed section 340 engaged with the sliding section 31)5.
and a second guide portion 341 for guiding the second feed portion in the X direction. The second guide part 341 includes second guide bodies 342A, B extending in the X direction, and second guide bodies 342A, B, ! : A second guide belt 343 connecting the second feeding section 340 is provided.

Each of the pair of first guide belts 343 extends in the X direction, and is rotatably attached to both #8 sections of the boo IJ344A, B fixed to the second guide bodies 342A, B and the second feeding section. The attached pulleys 3458 and 345B are connected to each other. One end of the second guide body 342A, one of the pair of second guide bodies 342A and B, is attached to a motor 346 whose rotation can be freely controlled, and the other end is rotatably attached to the frame of the vehicle body 1. It is being The pair of second sending parts 340 penetrate the sliding part 305 and extend in the X direction. During this penetration, the second sending part 340 must be arranged so as not to cross the selection hole 308 of the sliding part 305 and the first sending part 330.

The operation of the above-described configuration will be explained below.

First, each open bottom part 205 of the seedling tray 2 is placed on the pedestal 301.
The seedling tray 2 is placed so as to correspond to each opening 304 of the
is placed on the pedestal 301, and the selection hole 308 of the sliding part 305 is
corresponds to the open bottom portion 205 at one end of the seedling tray 2.

Next, the inside of the transport pipe is evacuated by the seedling forced transport device 4 on the downstream side of the transport pipe 303. As a result, the seedlings on the selection hole 308 are sent through the transport pipe 303 into the transplanting device 5, which will be described later. Thereafter, in order to align the longitudinally adjacent subsequent opening 304 with the selection hole 308, the belt 333 is fed by a predetermined amount by the controlled drive of the motor 336 of the first guide means 309, and accordingly, the belt 333 is fed in the X direction. The first sending section 330 is moved by a predetermined amount in the direction opposite to the direction of the arrow in this embodiment. As a result, a new seedling is selected and extracted from the cell 203 and fed into the transplanting device 5 through the transport pipe. While repeating this controlled feeding of the seedlings, the selection hole 308 of the sliding portion is moved in the longitudinal direction to the open bottom 205 at the other end of the seedling growing tray. Thereafter, in order to align the opening 304 adjacent to the selection hole 308 in the X direction, the belt 343 is fed by a predetermined amount by the controlled drive of the morrow 346 of the first guide means 310, and accordingly, the belt 343 is moved in the X direction. The first sending section 340 is moved by a predetermined amount. In this embodiment, this amount of movement corresponds to three cells of the seedling tray. As a result, three new seedlings adjacent to each other in the X direction are extracted from the cell 203, and these seedlings are sent to the transplanting device 5. After this seedling is sent out, the first guide means 30
The driving direction of the control motor 336 of No. 9 is reversed, and the sliding part 305 is sent by a predetermined amount in the X direction, and the subsequent opening 304 adjacent in the longitudinal direction is aligned with the selection hole 308, and a new seedling is extracted. . While repeating this operation continuously, the selection hole 308 of the sliding part is moved in the longitudinal direction to the open bottom 205 at the end of the seedling growing tray, and the seedling extraction operation is completed.

Embodiment 3 of Seedling Extracting Apparatus The seedling extracting apparatus 3 shown in FIG. 15 will be described below. This embodiment has many common parts in structure with the embodiment shown in FIG. 14, so the same components are given the same reference numerals, and the different structures will be mainly explained. The seedling selection mechanism 302 includes a slidable pedestal 301 as a supporting member disposed in the center, and a drive unit 306 (as shown in FIG. 14) for moving this pedestal two-dimensionally in the X direction and the X direction. Since they have the same configuration, they are simply shown in FIG. 15). The pedestal 301 is larger than the seedling tray and has a plurality of openings (not shown) penetrating from the tray mounting surface to the bottom surface. Each opening has a shape and arrangement that corresponds to the open bottom 205 of the seedling tray 2. Therefore, each open bottom 205
and each opening is in the inserted state.

A selection member 305 fixed to the frame of the vehicle body 1 is disposed on the bottom side of the pedestal 301.
and selection member 305 are in relative sliding contact. Three selection holes 30 are arranged in the X direction in the center of the selection member 305.
8 are provided, and each transport pipe 303 is connected to each selection hole 308. Here, in order for the pedestal 301 to slide on the sliding surface of the selection member 305 in the X direction and the
It is preferable to form the selection member 5 at least twice the size of the seedling growing tray in the X direction, and at least 15 times the size of the germination tray in the X direction.
It is preferable to place it in the center of 05.

The operation of the above-described configuration will be explained below.

However, for parts omitted in the drawings, refer to FIG. 14. First, the seedling tray 2 is placed on the pedestal 3 so that each open bottom 205 of the seedling tray 2 corresponds to each selection hole of the pedestal 301.
01. At that time, move the pedestal 301,
The selection hole 308 of the selection member 305 is arranged in advance so as to correspond to the open bottom at one end of the seedling growing tray 2. next,
The inside of the transport pipe 303 is evacuated by the seedling forced transport device 4 arranged on the downstream side of the transport pipe 303.

As a result, the first seedlings (three in this embodiment) are pulled out from the open bottom at one end of the seedling tray 2, and the first seedlings are removed from the transport pipe 303.
is sent to the downstream side through the Thereafter, in order to align the longitudinally adjacent subsequent opening with the selection hole 308 of the selection member, the pedestal 3 is
01 in the longitudinal direction by a predetermined amount.

As a result, new seedlings are selected and extracted from the cell 203 and sent to the downstream side through the transport pipe 303. After repeating such controlled feeding, the open bottom 205 at the other end of the seedling tray and the selection hole 30 of the selection member 305 are removed.
8, the pedestal 301 is sent in the longitudinal direction. Thereafter, the slider is moved by a predetermined amount in the X direction by the controllable second guide means 310 in order to align the selected hole with the opening adjacent in the X direction. This amount of movement corresponds to three cells of the seedling growing tray 2 in this embodiment. As a result, three new seedlings adjacent to each other in the X direction are selectively extracted. Thereafter, the driving direction of the control motor 336 of the first guide means is reversed, and the sliding part 30 is moved in the opposite direction to the X direction.
5 by a predetermined amount to align the longitudinally adjacent subsequent openings with the selection holes to selectively extract new seedlings.

While repeating this operation continuously, the opening of the sliding portion is moved in the longitudinal direction to the open bottom 205 at the end of the seedling tray, and the seedling extraction operation is completed.

I will explain about it.

FIG. 17.1.8 shows the main parts of the forced seedling transport device 4 arranged on the downstream side of the transport pipe 303 connected to the opening 314 of the support stand 307 or the selection hole 308 of the selection member 305. (Here, in FIG. 17, the support stand 30
7 is shown as a representative). This forced seedling transport device 4 is
As shown in FIG. 1, there is a known vacuum main body 401 for removing air in the direction of arrow B, a suction pipe 402 connected to this main body, and a suction section connecting this suction bow pipe 402 and a transport pipe 303. 403. The suction section 403 includes a cylindrical enclosure 405 that surrounds a plurality of openings 404 provided on the peripheral wall surface on the downstream side of the transport pipe 303 . The enclosure 405 is sized to surround all the openings 404 and to have a constant distance from the outer peripheral surface of the transport pipe 303 . Therefore, the transport pipe 303 passes through the central portion of the enclosure 405 in the axial direction and is joined to the enclosure 405 in an airtight manner. One end of the suction pipe 402 is hermetically joined to the circumferential surface of the enclosure 405.

By configuring the suction section 403 in this way, the seedlings sent from the upstream side of the suction section 403 can be transferred to the suction pipe 4.
It can be sent to the downstream side of the suction section 403 (in the direction of arrow C) without being drawn into the suction section 403. In this case, in order to exert an inertial force when the seedlings pass through the suction part, the suction part 403
It is preferable to arrange the nearby transport pipes in a vertical direction.

Further, by providing an on-off valve 406 at the end of the transport pipe 303, the seedlings can be reliably vacuumed within the transport pipe 303. ” - Forced transportation of seedlings with the above configuration 4
By connecting the seedling extraction device 3 with the transport pipe 303, it is possible to extract the seedlings from the bottom of the seedling tray 2.

Regarding the transplanting device The transplanting device 5 used in the seedling planting machine A will be described in detail below. As shown in FIGS. 1 and 19, each of the parallel transplant devices 5 is connected to the downstream end of the main pipe 318 of the transport pipe 303. This implantation device 5
As shown in Figure 0.21, there is a transplanting mechanism 501 for transplanting the seedlings sent through the transport pipe 303 to the ridges, a pair of front wheels 502 for guiding the transplanting mechanism along the ridges, and a pair of front wheels 502 for guiding the transplanting mechanism along the ridges. Frame 5 with a pair of rear wheels 503 attached
It consists of 04.

Example 1 of Wheel A wheel for guiding the transplantation device 5 will be described below. Conventionally, front and rear wheels 50 as shown in FIG.
They are parallel to each other and are provided perpendicularly to both ends of a shaft 51 attached to the frame. Also,
The front and rear wheels 50 are arranged at intervals such that they sandwich both sides of the ridge. Wheels 52 as shown in FIG. 23 are rotatably attached to both ends of a 7-shaped shaft 53 and are provided perpendicularly to the shaft. Moreover, this wheel 52 is arranged behind the rear wheel. The wheels 52 are arranged in an inverted V shape and can press the periphery of the seedling pressure perforation 54 formed in the ridge from the outside. Therefore, by pressing the soil towards the roots of the seedlings accommodated within the borehole 54,
It is possible to close the gap that exists between the hole and the roots of the raised seedling.

However, with a transplanting device having two front wheels and two rear wheels, there is a possibility that the transplanter may not be able to run reliably in the center of the ridge because the hardness of the ridge is different between the left and right portions, causing wobbling. For example, as shown in FIG. 24, the ridge may move away from the center line of the ridge, which should originally be a straight line. In this case, if the wheels run onto the slippery mulch, the device becomes unstable, and furthermore, the mulch may be torn by the wheels, which is a disadvantage.

In order to eliminate such disadvantages, the present implantation device 5 has the following features:
It has a front wheel 502 as shown in FIG. 25 and a rear wheel 503 as shown in FIG. 26. In the front wheel 502, a curved portion 505 is formed over the entire length in order to roughly match the shape of the ridge.

This curved portion 505 is generally in contact with the ridge over its entire length while the front wheel 502 is rotating, and therefore,
It becomes possible to prevent the front wheels 502 from sliding sideways.

The rear wheel 503 has a curved portion 506 that roughly matches the shape of the ridge, and a pair of pressing portions 507 are provided at the inner end of the curved portion 506. This wheel-shaped pressing part 507 is spaced apart from both sides so as to sandwich the planted seedling, and has a recessed part 508 in the center. This recess 508 is formed so as to avoid the leaves of the planted seedling.

As shown in FIG. 29, when seedlings are transplanted to the ridge using the transplanting mechanism 501 after covering the ridge with mulch 510 using the mulch laying device, perforations are made in the ridge, and then,
A step is taken to place the seedling within the borehole (details described below). In this case, the perforation is formed to be slightly larger than the root of the seedling, and therefore, when the seedling is placed in the perforation, the outer circumferential surface of the perforation 54 and the root of the seedling are connected, as shown in FIG. There will be a slight gap between them. These gaps must be filled in as they become an obstacle to the growth of seedlings. What is provided to achieve this purpose is the above-mentioned 1 pressing section 5.
It is 07. This first pressing part 507 is the 30th pressing part at the top of the ridge.
As shown in the figure, the weight of the transplantation device 5 constantly operates to press the ridge from above to below. Therefore, when the first pressing part 507 moves near the seedling, the soil pushed in from both sides of the seedling by the first pressing part 507 fills the gap between the outer peripheral surface of the perforation 54 and the roots of the seedling. Therefore, successful transplantation of the seedlings can be completed.

Since the front wheel 502 with the curved portion 505 and the rear wheel with the curved portion 506 described above can reliably guide the ridge, the first pressing portion 507 can be positioned so as to sandwich the transplanted seedling. Can be moved at all times.

Embodiment 2 of Wheel FIG. 27 shows another embodiment of the front wheel 502. The front wheels 502 are spaced apart from each other on both sides of the shaft 51, and each front wheel 502 is provided with a curved portion 505, respectively. This curved portion 505 is formed along the mountain shape of the ridge. Therefore, the front wheel 5
02 can be guided along the ridge.

FIG. 28 shows another embodiment of the rear wheel 503. The rear wheels 503 are arranged separately on both sides of the shaft 53, and each rear wheel is formed with a curved portion 506 and one pressing portion 507, respectively. This curved portion 506 is formed to follow the mountain shape of the ridge, and the first pressing portion 507 is wheel-shaped and is provided at the inner end of the curved portion, and is designed to sandwich the transplanted seedling from both sides. are spaced apart.

Since the wheel having such a configuration has the same function as the wheel shown in FIGS. 25 and 26, a description of its operation will be omitted here.

Since the above-mentioned curved portions 505 and 506 rotate while contacting the mulch laid on the ridge, it is preferable to apply a non-slip material such as rubber, for example. Furthermore, it goes without saying that the front wheels and rear wheels are not limited to the embodiments described above, and can be modified in various ways. For example, 1
When the pressing portion 507 is a hollow rubber tire, the pressing force against the ridge can be adjusted by adjusting the amount of air inside.

Example 1 of Implant Device Hereinafter, the implantation mechanism 501 provided in the implant device 5 will be explained based on FIGS. 20 and 21. This mechanism 501
Holes 54 (No. 30) for seedling transplantation are made in the mulched ridge
a planting means 520 for arranging the seedling in the borehole at the same time as forming a hole (see figure); a driving means 521 for driving the planting means 520; and a guide means 525 for guiding the planting means at least in the vertical direction. , and a control means 522 for controlling the timing at which the seedlings sent through the transport pipe 303 are sent into the planting means 520.

The implanting means 520 includes a perforation body 523 that is in the shape of a beak and can be opened and closed, and has a perforation formed in a ridge, and an opening/closing mechanism 524 for opening and closing the perforation body 523 in a timely manner.

The perforated body 523 is provided at the lower end of the main body 526 of the implantation means 520, and consists of a first perforated part 523A and a second perforated part 523B that form a pair to form a beak. As shown in FIG. 31, the first perforation portion 523A is pivotally supported by the main body 526 at its upper end so as to rotate about a fulcrum 527. As shown in FIG. An arm portion 528 that constitutes a part of the opening/closing mechanism 524 is provided at the upper end of the second perforation portion 523B. This arm portion 528 extends substantially horizontally and is pivotally supported by the main body 526 so as to rotate about a fulcrum 529 . A roller 53 is provided at the other end of the arm portion 528.
0 is provided, and this roller 530 is for cooperating with a roller sliding section 531 (specific configuration will be described later) that constitutes a part of the opening/closing mechanism 524. A rotatable pressing roller 532 is provided on the fulcrum 527 side of the arm portion. This pressing roller 532 is
When the arm portion 528 rotates around the fulcrum 529,
This is provided to push the first perforated part 5238 described above and rotate the first perforated part 5238 about the fulcrum 527.

In order to suitably press the first perforation part 523 with the pressure roller 532, a stepped part 533 is formed on the first perforation part 523A.
form. This step portion 533 is provided between the fulcrum 527 and the tip of the first perforation portion 523A, and
The fulcrum side end of the first perforation extending in the vertical direction is formed to extend outward. Further, the step portion 533 is arranged close to the pressure roller 532 below.

Therefore, when the arm part 528 rotates around the fulcrum 529, the second perforation part 523B fixedly provided on the arm part 528 opens toward the arm part, and accordingly, the pressing roller 532 of the arm part moves to the second perforation part 523B. Step part 5 of 1 perforation part 523A
33, and at the same time, the first perforation part moves to the fulcrum 52.
Open around 7. As can be seen from this, when the arm portion 528 rotates, the initially closed perforated body 523
becomes open. The perforated body 52 in the open state in this way
3, a tension spring 534 is provided between the first perforation and the second perforation.

In order to rotate the arm portion 528 at an appropriate time,
The roller sliding part 531 is not part of the opening/closing mechanism and is attached to the frame 5.
04 (see Figure 20.21). Third
As shown in FIG. 1, the roller sliding portion 531 has a curved shape and is disposed within the movement range of the roller 530. One end 531 of the roller sliding part 531 in this embodiment
A is disposed at a position where the roller 530 of the arm comes into contact when the implanting means 520 rotates and comes to the lowest position. Further, the other end 531B of the roller sliding portion 531 is approximately 3/4 in the direction of arrow E from the uppermost position of the implantation means 520.
When the roller 530 rotates, the roller sliding portion 531
It is arranged at a position away from the sliding surface 531C. Furthermore, a curved sliding surface 531C is formed between the ends of the roller sliding section, and the rotation angle of the arm section 528 changes depending on this curved state. For example, the sliding surface 53
1C is radially away from the center point of the rotational trajectory of the roller that moves with the rotation of the implantation means 520,
As the roller 530 and the sliding surface 531C come into contact with each other, the rotation angle of the arm portion 528 becomes smaller, and when the sliding surface 531C approaches the center point of the rotational trajectory of the roller in the radial direction, the roller 530 and the sliding surface contact each other. 5310, the rotation angle of the arm portion 528 increases. Therefore, it is necessary to set the curvature of the roller sliding portion in consideration of such matters. In this embodiment, the sliding surface 531C of the roller sliding portion is formed when the implanting means 520 moves approximately 1/2 turn in the direction of arrow E from the uppermost position, that is, when the roller 530 reaches the end 531A of the roller sliding portion. When the arm portion 528 reaches the maximum rotation angle and the implantation means 520 has rotated approximately 3/4 of a turn, that is, when the roller 530 approximately reaches the other end 531B of the roller sliding portion, the arm portion 528 are placed in such a position that they are restored to their parallel state. Furthermore, the sliding surface 531C is 'f, 31
As shown in the figure, the ends 531A and 531B of the roller sliding part
As the roller moves upward between
It has a curved shape such that the rotation angle of 28 gradually becomes smaller.

Therefore, the opening angle of the perforated body 523 is determined by the opening angle of the perforated body 523.
20 rotates about 172 times in the direction of arrow E from the top position, that is, when the perforation body 523 reaches the innermost point from the top surface F of the ridge, the seedling reaches its maximum (as shown in FIG. 33, the seedling is dropped into the perforation 54). While the implantation means 520 rotates approximately 1/2 to 374 times, the perforated body 532
The rotation angle of the implantation means 520 becomes smaller, and the implantation means 520 becomes approximately 3/3
When the perforator rotates four times (that is, when the perforator has risen sufficiently from the apical bud F of the ridge), the angle becomes 0°, and in this state, the planting means 520 moves to the highest position of 9, completing the transplantation of suitable seedlings. be able to.

The guide means 525 for appropriately rotating the implantation means 520, as shown in FIG. It consists of a pair of disc-shaped guide bodies 541A and 541B fixed perpendicularly to the bottom surface of the frame 504 for guiding, respectively.

The rod-shaped supports 540A and 540B are guide members 541A.
.

It is provided in the main body 526 so as to extend perpendicularly to the side surface of B. Further, the support body 540B is a support body 540A.
It is arranged eccentrically upward in the vertical direction, not concentrically with respect to the center. Therefore, the supports 540A and 540B are vertically spaced apart from each other by a predetermined distance, extend parallel to each other, and are fixed to opposite sides of the main body 526 so as to be perpendicular to the side surface of the guide body 541. There is.

Each guide body 541A, B is provided parallel to both side surfaces of the frame 504, and also supports the aforementioned support body 5408.

Guide grooves 542A and 542B are formed for guiding the guide member B. The guide grooves 542A and 542B are formed in an annular shape, as shown in FIG. The center of the annular guide groove 542B is not arranged concentrically with respect to the center of the annular guide groove 542A, but is arranged eccentrically upward in the vertical direction. This eccentric distance matches the eccentric distance between supports 540A and 540B.

The aforementioned guide grooves 5428 and 542B are not limited to an annular shape, but may be modified as appropriate. For example, an oval shape may be suitable.

With the above-described configuration, the main body 526 of the implantation means can be appropriately rotated, and at the same time, the beak-shaped perforated body 523 can always be oriented in the vertical direction (direction perpendicular to the top surface F of the ridge). can.

The drive means 521 for driving the implantation means 520 comprises a hydraulic cylinder 543. The end of the piston provided in this hydraulic cylinder 543 is connected to the main body 5 of the implantation means.
26 and is rotatably attached to the hydraulic cylinder 54.
The end of the main body of No. 3 is attached to the frame 504 so as to be rotatable/16 degrees. Therefore, as shown in FIG. 21, the hydraulic cylinder 543 can be moved in a pendulum manner following the reciprocating movement of the piston.

When the piston of the hydraulic cylinder 543 rotates in the E direction from the position shown in FIG. It is controlled so that it continues to move backward until the center point and the piston intersect. Moreover, the hydraulic pressure of the hydraulic cylinder is such that, despite the advancement of the transplantation device 5, while the perforation body 523 is placed in the interior of the implantation device 5, the perforation body remains stationary at a fixed location without shifting in the front-rear direction. It must be controlled so that it can move reliably only in the vertical direction (
(See Figures 32-34). For example, as shown in FIG. 21, since force is applied to the implantation means 520 from diagonally above the rear, the movement speed of the implantation means is horizontal movement speed V1.
and vertical movement speed V2. Therefore, when the implantation device 5 is advancing at a speed V, the horizontal movement speed V of the implantation means is parallel to and opposite to the direction of the movement speed V of the device while the perforator is disposed in at least the 1. Furthermore, the implanting means is rotationally controlled by hydraulic control of a hydraulic solinter so as to have the same speed as the moving speed V (V,=V relationship). Therefore, even if force is applied from diagonally above the rear of the implantation means 520,
The implantation means 520 can be kept stationary in a predetermined position in the ridge in the horizontal direction for a predetermined time, and at the same time, the implantation means can be moved up and down in the vertical direction at an appropriate speed.

Embodiment 1 of Control Means As shown in FIG. 20, a control means 522 for controlling the timing for sending the seedlings sent through the transport pipe into the planting means 520 is located adjacent to the most downstream end of the transport pipe 303. The switch 544 is provided with a switch 544, a hydraulic cylinder 545 for opening the switch 544, and a compression spring 546 for closing the switch 544.

The switch 544 has a plate shape and is pivotally supported by a top plate 547 fixedly provided on the top of the frame 504.
48 can be rotated in the horizontal direction.

On the opposite side of the shaft 548 across the transport pipe 303,
A piston tip of a hydraulic cylinder 545 that is hydraulically controlled is attached to the switch 544, and this hydraulic cylinder 545 is fixedly disposed on a top plate 547. The hydraulic cylinder in this embodiment constitutes a single-acting piston, and this piston moves only forward to open the switch 544, and the compression spring 546 moves the piston backward. In order to facilitate the retraction of the piston, the piston and the compression spring are arranged in a straight line, and the spring 5
One end of the piston 46 is attached to the tip of the piston, and the other end is fixed to the top plate 547.

By configuring the control means 520 as described above, the timing at which seedlings are sent into the planting means 520 can be appropriately controlled. For example, in this embodiment, the perforated body 523
When seedlings are placed in the container and when the perforation body 523 is open, the switch 544 is maintained in the closed state by the bias of the compression spring, and the seedlings sent from the transport pipe are placed at the entrance of the planting means. When the perforator 523 moves to the vicinity of the uppermost position, the switch 544 is opened by the hydraulic cylinder 545 and hydraulically controlled so that the seedling can be fed into the planting means, and the switch is opened. It is opened and closed.

The specific opening/closing timing of the switch 544 in this embodiment will be described later.

Embodiment of Multi-Aperture Means As shown in FIG. 21, the body 526 of the implantable means includes:
Additional multi-aperture means 550 are provided which extend horizontally forwardly from the body 526;
It also consists of an arm 551 with one end fixed to the main body, and several pressing irons 552 provided at the tip of this arm 551.

The arm 551 described above includes a first arm portion 551A whose one end is fixed to the main body 526, and a second arm portion 551 shaped like a letter 15 and rotatably attached at the center of this arm portion.
It is composed of B. Moreover, a buffer body 553 and a tension spring 554 are attached between the first arm part 551A and the second arm part 551B. This buffer 553 is
The second arm is attached to the tip of the second arm so as to maintain a constant distance between the first arm and the second arm.
The first arm is disposed in contact with the first arm in order to absorb the force applied to the arm. The tension spring 554 is the buffer body 55
3. In order to keep the first arm part in contact with the first arm part at all times,
The first arm section and the second arm section are attached so that a tensile force is exerted between them.

The aforementioned suppression iron 552 is provided at the lower end of the second arm portion 551B and is formed in a cylindrical shape (see FIG. 20). Furthermore, the pressing iron has a gas burner inside, and an opening 555 (third
(See Figure 4) is configured to maintain the necessary temperature when forming. The pressing trowel used to remove parts of the mulch that would be an obstacle when transplanting seedlings using a perforator needs to be configured to previously form an opening 555 in the mulch at this location before pushing the perforator into the ridge. . Furthermore,
This pressing trowel rotates in synchronization with the rotation of the planting means 520, and is configured to form an opening in the mulch in advance for transplanting the next seedling while the seedling is being transplanted using the perforator. It is necessary to take Therefore, the pressing trowel is arranged at a position where the surface of the mulch and the bottom surface of the pressing trowel come into contact with each other while the seedlings are being transplanted by the perforating body 523 at the lower end of the second arm portion 551B, and the perforating body Place mulch openings 5 at the same spacing as the seedlings will be transplanted.
55 in sequence.

The mounting position of the pressing iron 552 should be changed depending on the moving speed of the transplantation device 5 and the rotational speed of the implantation means 520, so the pressing iron 552 should be slid in the longitudinal direction of the second arm portion 551B. It is more preferable to have a structure that allows the arm to move freely and to be fixed at a predetermined location, and also to be able to be displaced in a direction perpendicular to the second arm portion and fixed at a predetermined location.

Specifically, a plurality of female threaded portions are formed at predetermined intervals on the lower surface of the second arm portion, and the rod 552A of the pressing iron 552 can be screwed into the predetermined female threaded portions. This allows the pressing iron to be moved in the horizontal direction. Furthermore, by configuring the rod 552A and the iron main body 552B to be able to be threadedly engaged, the pressing iron can also be expanded and contracted in the vertical direction.

The process of transplanting seedlings using the transplanting device The process of transplanting seedlings using the transplanting device 5, particularly the process of transplanting seedlings using the perforated body 523, will be explained based on FIGS. 32 to 34.

The seedlings sent through the transport pipe 303 are placed on the switch 544, and when the perforated body 523 moves to the vicinity of the uppermost position, the switch opens and drops the seedlings into the planting means 520. The dropped seedling passes through the insertion hole formed in the main body 526 of the planting means 520,
The perforated body 523 is sent to the closed state, and the perforated body 523
the perforated body 523 until it moves to the position shown in FIG.
continues to be placed within.

Thereafter, as shown in FIG. 33, when the perforating body has moved approximately to the lowest position and the perforating body has been fully inserted into 1, the roller 530 of the arm portion 528 is moved to the roller sliding portion 53.
At the same time, the arm portion 528 is lifted and the perforated body is opened by lever action. Then, a predetermined opening is formed in the multi 510 by the pressing iron 552B provided in the multi opening means 550. After that, as shown in FIG. 35, the roller sliding surface 53
The perforator 523 is maintained in an open state while the roller moves on the perforation 1C, and at the same time, the perforator continues to rise by 1" while leaving the seedling in the perforation 54. Then, at an upper position where the perforating body is sufficiently away from the mulch laid on the ridge, the roller separates from the roller sliding surface, and at the same time, the perforating body enters the closed state. Thereafter, when the perforator moves to the vicinity of the uppermost position, new seedlings are fed into the planting means again.

After that, the above-described operations are performed continuously.

In this embodiment, the configuration is such that the perforating body is fully opened when it moves to the lowest position, but by adjusting the positional relationship in which the roller and the roller sliding body engage, the perforating body is moved upward. It may be configured to gradually open and place the seedling within the borehole. Such improvement is particularly suitable when the soil in the ridge is a little hard.

Embodiment 2 of Implant Device Hereinafter, with reference to FIG. 35, another example of the implantation mechanism provided in the implant device will be described.

In describing the implantation device 6 according to this embodiment, the same reference numerals are given to the parts of the implantation means that are common to the configuration of the embodiment shown in FIG. 20, and detailed explanation will be omitted.

This transplanting mechanism 601 includes a planting means 520 for arranging the seedlings in the container 1, a driving means 621 for driving the planting means, and a guide means 625 for guiding the planting means 520 at least in the vertical direction. The control means 622 controls the timing for sending the seedlings sent through the transport pipe into the planting means 520.

The guide means 625 is rotatably mounted on the frame 604 and communicates between a pair of tooth side guides 641A and 641B that are interlocked with the drive means 621 and the guides and the main body of the implantation means. a pair of supports 640A provided for transmitting the rotation of the guide to the body of the implantation means;
It is composed of B.

Each rod-shaped support body 640A, B is a guide body 641
is arranged to extend perpendicularly to the side surface of the
As shown in FIG. 37, it is composed of two members. One first member 6628, B is fixed to the main body 526, and the other second member 663A, B is fixed to the guide body 641.
8. It is fixed to the peripheral edge of the side surface of B, and these members are pivotally connected at the center of the support. Further, as shown in FIG. 38, the support body 640B is not concentric with the support body 640A, but is arranged eccentrically upward in the vertical direction. Therefore, the supports 6408 and B are spaced apart from each other in the vertical direction by a predetermined distance, extend parallel to each other, and are arranged on opposite sides of the main body so as to be perpendicular to the side surface of the guide body 641. ing.

Each guide body 641A, B is attached parallel to both side surfaces of the frame 604 and rotatably.

The rotation axis of the guide body 641B is not arranged concentrically with respect to the rotation axis of the guide body 641, but is eccentrically arranged in the vertical direction. This center-to-center distance matches the center-to-center distance between supports 6408 and B.

With the above-described configuration, the main body 526 of the implantation means can be rotated appropriately, and at the same time, the beak-shaped perforated body 523 can always be oriented in the vertical direction (direction perpendicular to the top surface F of the ridge). You can leave it there.

The driving means 621 for driving the implantation means 520 includes a pair of gear-shaped sprockets 660A and 660B fixed to both ends of the shaft of the rear wheel 503, and a mechanism for interlocking the sprockets 660 and the guide body 641. (toothed bell) 661A, B. Therefore, the sprocket rotates as the rear wheel rotates, and the rotation rotates the guide body, which follows the rotation of the support body 64.
0 rotates and moves. As a result, the perforated body 523 rotates in the same direction as the rotational direction of the guide, and rotates so that the tip of the perforated body is always perpendicular to the ridge.

A device for automatically controlling the rotational speed of the piercing body so that when the piercing body is inserted into at least one of the holes, the piercing body moves only in a predetermined position without shifting in the front-back direction and in the downward direction. Preferably, a transmission (not shown) is interposed between the sprocket 660 and the guide body 641.

Embodiment 2 of control means Planting means 5 for seedlings sent through transport pipe 303
Control means 622 for controlling the timing for feeding into 20
35.38.39. As shown in FIG. 40, a switch 644 in the form of a band-shaped loop disposed adjacent to the most downstream end of the transport pipe 303, a pair of rotating bodies 670A and 670B for sliding this loop body, and It is equipped with

The switch 644 has a width sufficient to close the end of the transport pipe 303, extends perpendicularly to the transport pipe 303, and is stacked in two layers below the transport pipe. There is. Two seedling holes 665 and B are formed in the upper and lower loop bodies, and these seedling holes 66
58 and B are arranged symmetrically with respect to the central axis of the pipe, as shown in FIG.

A pair of rotating bodies 670A and 670B are provided at both ends of the switch 644. This rotary body is inserted between the loop bodies forming the switch to suitably move the switch. Rotating body 6
As shown in FIG. 35, one of 70A and 70B has
A pulley 666 is provided. This boo 'J666 is connected to a bell 661B that is linked to the rear wheel 503, so that the pulley 666 is synchronized with the drive of the rear wheel.

At least at the end of the pipe 303, it is preferable that the top and bottom of the loop body are as close to each other as possible, so the pressure rollers 667A and 667B for pressing the loop body from the top and bottom directions are
Each is attached to a loop body that forms a switch. This pressing roller comes into contact with the top and bottom of the loop body, respectively, and
They extend in the width direction of the switch (see FIG. 35) and are arranged between the rotating body 670 and the transport pipe 303, respectively.

Since the seedling holes 665A and 665B move following the movement of the belt, the moving speed and length of the belt forming the switch are as follows:
When the perforated body 523 moves to the vicinity of the uppermost position,
As shown in FIG. 41, the seedling through holes 665A and 665B are appropriately determined so as to coincide with each other at the lower end position of the transport pipe. Furthermore, a control motor (not shown) can also be used as a drive source for the rotating body that causes the belt to move. This control motor rotates the rotary body forward or reverse to align or shift the seedling through holes 665A and 665B. With the configuration described above, the implantation means 520
It becomes possible to appropriately control the timing of sending seedlings into the interior.

Embodiment 3 of Implantation Device Hereinafter, still another embodiment of the implantation mechanism provided in the implantation device will be described with reference to FIG. 41.

When explaining the implantation device 7 according to this embodiment, the 2035th
Portions common to the configuration of the embodiment shown in the drawings are denoted by the same reference numerals, and detailed description thereof will be omitted.

The transplanting mechanism 701 includes a planting means 520 for arranging seedlings in the container 1, a driving means 621 for driving the planting means, a guide means 725 for guiding the planting means at least in the vertical direction, and a transportation It also includes a control means 522 for controlling the timing at which the seedlings sent through the pipe are sent into the planting means 520.

The guide means 725 is rotatably attached to the frame 604 and communicates between a pair of toothed guide bodies 641A and 641B that are interlocked with the drive means 621 and the main body of the implantable means, and provides guidance. a pair of supports 740A provided for transmitting rotation of the body to the main body of the implantable means;
It is composed of B.

Each of the rod-shaped supports 740A and 740B is
As shown in the figure, it is arranged in a crank shape and is composed of two members. One of the first members 762A and 762B extends perpendicularly to the side surface of the guide body 641, and is fixed to the main body 526 at one end. The other second member 763A, B has a crank shape.
One end is fixed perpendicularly to the peripheral edge of the side surface of the guide bodies 641A and 641B, and the other end is pivotally connected to the end of the first member. Further, as shown in FIG. 43, a support body 740B
is arranged eccentrically above the support body 740A in the vertical direction. Therefore, each support 740A.

B protrudes outwardly from the outer periphery of the guide by the length of the crank arm, so that each first member 762A of the support.

The radius of rotation of B is approximately equal to the radius of rotation of the guide body plus the length of the crank arm.

Each guide body 641A, B is rotatably attached parallel to both side surfaces of the frame 604. Guide body 6
The rotational axis of the guide member 41B is not arranged concentrically with respect to the rotational axis of the guide body 641A, but is arranged eccentrically upward in the vertical direction. The distance between the centers matches the distance between the centers of supports 740A and 740B.

With the above-described configuration, the main body 526 of the implantation means can be rotated with a rotation radius larger than the rotation radius of the guide body 641, and at the same time, the beak-shaped perforation body 523 can be always oriented in the vertical direction. can.

With the rotational movement of the above-mentioned planting means 520, the perforating body 523 performs the work of planting seedlings in the ridge, but in this case, mud adheres to the outer surface of the perforating body 523, and this adhered mud increases and solidifies. In this case, not only does the opening and closing of the perforation become obstructed, but also the mud adhering to the perforation causes the perforation to be forced wider. Therefore, mud removal means as described below are effective.

Embodiment of mud removal means A mud removal means 680 for removing mud adhering to the perforated body 523 is provided in Section 20.4.1. , as shown in Figure 44,
It is arranged below the perforated body 523. Mud removal means 68
0 is composed of a mud drain main body 681 fixed across the lower frames of the frames 504 and 604, and a mud drain opening 682 formed in the center of this main body.

The mud brush main body 681 is formed into a thin plate shape and is arranged to extend at least above the top of the ridge.

The opening 682 is elongated in the direction of movement of the implantation device. The ends 682A and 682B of the opening 682 are
It has a semicircular shape, and is placed in a position where it comes into contact with one surface of the perforated body 523 when the perforated body 523 is raised and lowered, as shown in FIGS. 46 and 47. Therefore, the 46th
As shown in the figure, when the perforated body 523 is lowered, the first
The surface of the perforation 523 comes into contact with the end 682 of the opening, allowing dirt on the surface of the first perforation 523A to be removed. Then, when the perforated body 523 is raised, the surface of the second perforated part 523B comes into contact with the end 682B of the opening, and mud on the surface of the second perforated part 523B can be removed. It is preferable that each end 682A, B of the opening 682 is provided with an elastic body 683A, B for mud removal, for example, an elastic comb. This is because the provision of the elastic body improves the adhesion with the surface of the perforation.

The transplant devices 5 described above can be arranged independently, as shown in FIG. 19, but as shown in FIG. It is also possible to connect the rear wheels with a single shaft 53. In this case, between the wheels and the shirt)
By providing elastic bodies such as springs 699 at the ends of 51 and 53, each transplant device can suitably follow each ridge.

Regarding the row planting machine: Although the above-mentioned configuration has been explained on the assumption that it is a multi-row planting machine, it can also be applied to a group planting machine. The single-row planting machine will be described below with reference to FIG. 48. Note that the same reference numerals are given to parts having the same configuration as those described based on a multi-row planting machine, and detailed description thereof will be omitted.

Embodiment 1 of single-row planting machine The single-row planting machine G shown in FIG. A vehicle main body 7 mounted thereon, a seedling extraction device 3 for supporting a seedling tray 2 containing seedlings to be planted and selectively extracting grown seedlings from the seedling tray 2, and a seedling extraction device 3 for selectively pulling out grown seedlings from the seedling tray 2, and a vacuum cleaner to place the extracted seedlings in a predetermined position. It is comprised of a forced seedling transport device 4 for forcibly transporting the seedlings to a location, and a transplanting device 5 for transplanting the transported seedlings to the ridge.

The aforementioned front wheels 502 and rear wheels 503, the seedling extracting device 3, the forced seedling-raising transport device 4, and the transplanting device 5 are integrally provided within the vehicle body 7, and have a configuration suitable as a strip planting machine. There is.

The aforementioned front wheels 502 are rotated by belt drive using an engine 701 disposed within the vehicle body 7 as a driving source. This engine 701 is the exhaust pressure unit 7
02, and this exhaust pressure unit 702 is connected to the suction pipe 402 of the forced seedling transport device 4. Therefore, when the engine 701 is driven, the exhaust pressure unit 702 sucks the air in the suction pipe 402, and the seedlings in the seedling tray 2 are sucked accordingly.

The single-row planting machine G shown in FIG. 48 is assembled by applying the above-mentioned device.
The rear wheel 503 uses the one shown in FIG. 25, the rear wheel 503 uses the one shown in FIG.
Using what is shown in Figure 11, the seedling extracting device 3 is
The forced seedling transport device 4 uses the device shown in FIG. 14, the transplant device 5 uses the device shown in FIG.
Utilizing what is shown in FIG. 5, these devices are integrally arranged within the vehicle body.

The single-row planting machine G in this embodiment has a perforated body 52
3, the seedlings are transplanted one by one, so the seedlings to be extracted from the seedling extracting device 3 need to be extracted one by one. Therefore, as shown in FIG. 49, by providing one selection hole 308 in the sliding part 305 of the seedling selection mechanism 302, one seedling can be selected as the sliding part 305 moves in the X direction or in the X direction. You can take them out one by one. The other configurations of the seedling selection mechanism 302, such as the configuration of the drive section 306, are the same as those shown in FIG. 14, so their explanation will be omitted.

Another embodiment of the seedling extracting device 3, as shown in FIG. A seedling selection mechanism 302 for extracting the seedlings, and this seedling selection mechanism 30
2 and the forced seedling transport device 4, it is provided with a transport pipe 303 for transporting the extracted seedlings to the downstream side.

The seedling selection mechanism 302 arranged below the pedestal 301 has a first sliding part 305A that slides parallel to the bottom surface of the pedestal 301 and in the X direction, and a first sliding part 305A that slides parallel to the bottom surface of the pedestal 301. and a second sliding part 305B that slides in a direction perpendicular to the X direction (X direction), a first guide means 309 for moving the first sliding part 305A in the X direction, and a second sliding part a second guide means 310 for moving in the X direction, and a first sliding part 3
05A and a second sliding portion 305B, and a support stand 307 placed in correspondence with the pedestal 301.

The first sliding part 305A includes a band extending over the entire lower surface of the pedestal 301, and a pair of bands arranged extending in the X direction in order to wrap the band and move it in the X direction. drum 32
It has 0A and B. The band of the sliding part 305 has an
A plurality of first selection holes 308A are provided in the X direction, and the first selection holes 308A are formed in one-to-one correspondence with the openings 304 of the pedestal 301 arranged in the X direction.

The second sliding portion 305B has a plurality of second selection holes 308B on its funnel-shaped top surface, and is provided with a transport pipe 303 at its lower end. The second selection hole 308B is
They are arranged in the X direction and are formed in one-to-one correspondence with the openings 314 of the support base 307 arranged in the X direction.

A driving section 306 for driving the first and second sliding sections 305A includes a first guide means 309 for sliding the first sliding section 305A in the X direction, and a driving section 306 for driving the first sliding section 305B in the X direction. and a second guide means 310 for sliding.

The first guide means 309 is fixed to the frame of the vehicle main body 7, and has controllable motors 324A and 324B for moving the sliding portion 305 by a predetermined amount in the X direction, and is connected to the motors 324A and 324B, Drum 3 around which moving part 305 is wound
20A, 'B. This drum 320A
, B and the motors 324A, B are connected to the drum 32
0A.

This is done via a rotating shaft provided at B.

The second guide means 310 includes a sending section 3340 that engages with the second sliding section 305B, and a guide section (not shown) for guiding this sending section in the X direction. Second guide means 3
Since the configuration of 10 uses the one shown in FIG. 14, detailed explanation will be omitted here.

The operation of this configuration will be explained below. First, the seedling tray 2 is appropriately placed on the pedestal 301. Next, the first sliding portion 305A is moved in the X direction by the first guide means 309, so that the row of open bottoms located at the end of the seedling growing tray 2 and the row of the first selection holes 308 are aligned. Thereafter, while sliding the second sliding portion 305B in the X direction using the second guide step 310, the seedlings are pulled out one by one from the seedling growing tray. After the second sliding part 305B moves to the end of the seedling tray,
The first sliding portion 305A is shifted by one line in the X direction.1. Then, while the second sliding portion 305B moves in the X direction, it pulls out the seedlings in this row one by one. By repeating such operations, it is possible to pull out the seedlings one by one from the seedling tray and send them to the transport pipe 303.

Embodiment 2 of single-row planting machine FIG. 51 shows another embodiment of the single-row planting machine. The planting machine H of this embodiment has almost the same configuration as the apparatus □ shown in FIG. 35. Therefore, when describing this embodiment, the same reference numerals are given to the parts common to the apparatus shown in FIG. 35, and the explanation will be kept simple.

The transplanting mechanism in the planting machine H includes a planting means 520 for arranging the seedlings in the planting machine 1, a driving means 621 for driving the planting means, and a guide means 625 for guiding the planting means at least in the vertical direction. and transportation pipe 303
and a control means 622 for controlling the timing for feeding the seedlings sent by the seedlings into the planting means 520. Drive means 6 for driving the implantation means 520
21 includes a pair of gear-shaped sprockets 6608, B fixed to both ends of the shaft of the front wheel 502, and toothed belts 661A, B for connecting the sprocket and the guide body 641. It is growing. Therefore, as the front wheel 502 rotates, the sprocket) 660A
, B rotates, and the rotation rotates the guide body 641,
Following this, the supports 6408, B rotate and move.

By passing the bell l-661A around the pulley 710 provided at the end of the shaft of the engine 701, the front wheel 50
2 can be driven by an engine 701.

The control means 622 includes a belt-shaped switch 644 and a pair of rotating bodies 670A and 670B for sliding this belt, and a pulley 666 provided at the end of one rotating body 670A. It is connected to a pulley 711 provided at the end of the shaft of the engine 701 via a belt. Therefore, when the engine 701 is driven, the front wheels 5
02, the guide body 641 and the rotating body 670B rotate at the same time,
The perforated body 520 and the switch 644 operate in synchronization.

Within the portion indicated by the two-dot chain line 712 in FIG. 51, that is,
A suitable seedling extracting device, such as that shown in FIG. 50, is placed above the transplanting mechanism and contributes to a series of seedling transplanting steps.

By providing work handles 720 and 730 to the single-row planting devices G and H shown in FIGS. 48 and 51, work can proceed smoothly.

Furthermore, although the planting machine shown in Figure 48.51 is equipped with one perforator, in the case of wide ridges, a plurality of perforators, for example three perforators, may be arranged in parallel within the transplanter. .

It goes without saying that the structure of the above-mentioned planting machine is not limited to one-row planting, but can also be applied to two-row planting or three-row planting.

-The configuration of the device applied to the strip planting machine is described in Section 4.8.
It goes without saying that the configuration is not limited to that shown in FIG. 51, and can be modified as appropriate.

Operation of the entire planting machine The related operations of each device provided in the planting machine will be explained based on FIG. 5253.

During the seedling transplantation work, the inside of the transport pipe 303 is always kept in a vacuum state by the drive of the seedling raising forced transport device 4, so the extracted seedlings are always transported from the upstream side (tray side) in the transport pipe. It will be carried toward the downstream side (the perforated body side).

The seedlings placed in the seedling growing tray are pulled out from below by the movement of the sliding part M of the seedling extracting device 3, and then transferred to the transport pipe 3.
03, and is sent to the switch k provided in the control means 522. At this time, the switch is in the closed state and N3
The movement of the seedlings is temporarily stopped at the position. Thereafter, when the perforated body 523 provided in the transplant device 5 moves to approximately the uppermost position P1, the switch k becomes open, and the N4 inside the perforated body
Seedlings are sent to the position. Thereafter, the switch k is immediately closed, and at the same time, the sliding part M moves for a predetermined period of time, pulls out the subsequent seedlings present in the seedling growing tray from below, and passes through the transport pipe 303 to the position N3. Seedlings are sent. Thereafter, when the perforation body 523 has moved to approximately the uppermost position P, the switch k is opened and the seedling is fed into the perforation body 523 to the position N. The process of transplanting the seedlings progresses by repeating these steps.

Additionally, a sensor S is provided at position N3. This sensor S detects that the seedlings are N immediately before the switch k opens.
Really exists in position 3! This is a device that detects whether a person is present or not. Therefore, by providing such a sensor S, if the sensor S confirms the absence of seedlings at position N3, the planting machine itself stops running, waits until the seedlings are supplied, and then It is possible to configure the planting machine to start running immediately, thereby making it possible to prevent plant loss.

The time-series chart shown in FIG. 53 is just an example, and it goes without saying that various changes can be made as necessary.

Although the above-mentioned planting machine has been explained assuming a field with ridges, it goes without saying that it can also be used in fields without ridges or mulch.

In this case, it is not necessary to provide the wheels shown in FIGS. 25 to 28 or the multi-opening means shown in FIG. 21.

(Effects of the Invention) As is clear from the above description, the seedling tray according to the present invention is a seedling tray in which a plurality of cells are formed in which seeds of seedlings to be planted are stored and the seedlings are raised. The tray itself is equipped with a tray body having an X hole and a bottom body that removably engages with the tray body to close the opening bottom of each cell, so the tray itself can be used for manual transplantation of seedlings. In addition, the present invention can be advantageously applied to the case where all operations from picking out seedlings from the seedling tray, transporting them, and transplanting them are automated.

[Brief explanation of the drawing]

Figure 1 is a side view showing the planting machine, Figure 2 is a front view showing the planting machine, and Figures 3A and B are the first part of the tray body and bottom body of the seedling tray.
A perspective view showing the embodiment; Figure 4Δ is a sectional view taken along the line TVA-TVA in Figure 3A; Figure 4B is a sectional view taken along the line IVB-IVB in Figure 3B; The tray body and the second part of the bottom body
A perspective view showing the embodiment; FIG. 6A is a sectional view taken along line VIA-VIA in FIG. 5A; FIG. 6B is a sectional view taken along line VIB-VIB in FIG. 5B; FIG. 7 is a tray body of the seedling tray. Figure 8 is an enlarged cross-sectional view of the main parts showing the stacked seedling trays, and Figure 9 shows the main parts of the tray main body and bottom body of the seedling raising trays of the fourth embodiment. 10 is a cross-sectional view showing the main parts of the tray body and bottom body of the seedling-raising tray in the fifth embodiment, and FIG. 11 is a cross-sectional view showing the main parts of the tray body and bottom body of the seedling-raising tray in the sixth embodiment. 12 is a sectional view showing the extraction of seedlings from the tray body, FIG. 13A is a perspective view showing the first embodiment of a seedling extraction device used in a planting machine, and FIG. 13B is FIG. 13A. Fig. 14 is a perspective view showing a second embodiment of a seedling extracting device used in a planting machine; Fig. 15 is a perspective view showing a second embodiment of a seedling extracting device used in a planting machine. A perspective view showing the third embodiment; FIG. 16 is a perspective view showing the upstream end of a transport pipe used in the planting machine; FIG. 17 is a perspective view showing a forced seedling transport device used in the planting machine; The figure is a cross-sectional view showing the main parts of the forced seedling transport device.
The figure is a plan view showing the first embodiment of the transplanting machine, FIG. 20 is a perspective view showing the first embodiment of the transplanting device used for transplanting, FIG. 21 is a side view of the transplanting device shown in FIG. 22, 22nd
．． Figure 23 is a diagram showing the front wheels and rear wheels used in a conventional planting machine, Figure 24 is a diagram showing the meandering state of the device that can occur when using a conventional planting machine, and Figures 25 and 26 are Figures 27 and 28 are diagrams showing a first embodiment of the front wheels and rear wheels used in the relocation device, Figures 27 and 28 are diagrams showing the second embodiment of the front wheels and rear wheels used in the transplantation device, and Figure 29 is a diagram showing the front wheels and rear wheels used in the transplantation device. Figure 30 shows the seedling placed in the perforation, Figure 30 shows the gap between the ridge perforation and the root of the seedling firmly filled with the rear wheels, and Figure 31 shows the transplanting method used in the transplanting device. 32 to 34 are diagrams showing the operation of the construction body provided on the implanting means; FIG. 35 is a perspective view showing a second embodiment of the transplanting device used in a transplanting machine; FIG. 36 The figures are a plan view of the guide means used in the implantation device shown in Fig. 35, a side view of the guide means shown in Fig. 36, and a side view of the guide means shown in Fig. 38.
The figure is a perspective view showing the control means provided in the transplanting device, FIG. FIG. 42 is a plan view of the guide means used in the implantation device shown in FIG. 41; FIG. 43 is a side view of the guide means shown in FIG. 42;
The figure is a plan view of the transplant device shown in FIG. 35, FIG. 45 is a front view showing the mud removal means used in the transplant device, FIG. 46 is a cross-sectional view taken along line i I in FIG.
The figure is a plan view showing the second embodiment of the planting machine, Figure 48 is a perspective view showing the first embodiment of the single row planting machine, and Figure 49 is the first embodiment of the seedling extraction device used in the single row planting machine.
FIG. 50 is a perspective view showing an embodiment of the present invention, and FIG.
Fig. 51 is a perspective view showing the second embodiment of the single-row planting machine, Fig. 52 is a diagram schematically showing the main parts of the planting machine, and Fig. 53 is a diagram showing the main parts of the planting machine. It is a time series chart showing the movement status of seedlings. 1.Vehicle body 2..Seedling tray 203..
・Cell 3... Seedling extraction device 4... Seedling forced transport device 5.6.7... Transplanting device 304... Opening 305.
... Selection member 522.622 ... Control means G,
Fig. 37 Planting machine for rows

Claims (1)

[Scope of Claims] 1. A seedling-raising tray in which a plurality of cells are formed for containing seeds of seedlings to be planted and raising seedlings, including a tray body having a plurality of through-holes corresponding to the cells, and a tray body that can be freely attached to and detached from the tray body. and a bottom body that fits into the bottom body and closes the open bottom portion of each of the cells. 2. The seedling growing tray according to claim 1, wherein the bottom body is
A seedling raising tray comprising: a bottom plate; and a plurality of fitting parts protruding from the bottom plate to close the open bottoms of the cells in the tray body. 3. The seedling growing tray according to claim 2, wherein the fitting portion is formed in a shape that projects into the inside of the cell. 4. The seedling growing tray according to claim 3, wherein the fitting portion is formed with an internal space having a closed top portion spaced apart from the bottom plate, and the bottom surface of each cell is formed by the closed top portion of the fitting portion. A seedling tray featuring: 5. The seedling growing tray according to claim 4, wherein a plurality of the discharge ports capable of discharging surplus nutrient solution from inside the cells are formed at the closed top of the fitting portion in the bottom body, and A seedling growing tray, characterized in that the tray communicates with the open bottom. 6. The seedling growing tray according to claim 1, wherein the cells are arranged in a staggered manner. 7. The seedling growing tray according to claim 1, wherein the cells are arranged in a grid pattern. 8. The seedling growing tray according to claim 1, wherein each of the cells is formed in a tapered shape with a cross section decreasing toward one end. 9. As a seedling-raising tray in which a plurality of cells are formed for containing seeds of seedlings to be planted and raising seedlings, a tray body having a plurality of through holes corresponding to the cells, and a tray body removably fitted to the tray body. a bottom body for closing the open bottom of each cell, the bottom body having a bottom plate and a plurality of fitting parts protruding from the bottom plate for closing the open bottom of each cell in the tray body; The fitting portion is formed into a shape that protrudes into the inside of the cell, and the fitting portion is formed with an internal space having a closed top portion spaced apart from the bottom plate, so that the bottom surface of each cell is connected to the closed top portion of the fitting portion. A seedling raising tray formed by forming a plurality of discharge ports capable of discharging excess nutrient solution from inside the cells at the closed top portion of the fitting portion of the bottom body and capable of communicating with the open bottom portion of the fitting portion. A seedling-raising tray characterized in that a plurality of trays can be stacked on top of each other.