JPH02200108A - Seedling extraction apparatus for fix-planting machine - Google Patents

Abstract

PURPOSE:To enable the transfer of seedlings to a transplantation apparatus in ordered state by providing a selection means with at least one selection hole capable of selectively arranging a seedling in a prescribed cell of a raising seedling tray. CONSTITUTION:A raising seedling tray 2 is properly placed on a supporting table 301. In the above process, a selection hole 308 of a sliding part 305 is preliminarily positioned to a point corresponding to an opened bottom of an end of the raising seedling tray 2. An apparatus for the forced transfer of seedlings placed at the downstream side of a transfer pipe 303 is energized to evacuate the transfer pipe 303. The first seedling is extracted from the opened bottom at an end of the raising seedling tray by this process. The seedling is passed through the selection hole 308 and the opening 314 of the supporting table 307, transferred further through the 1st branch pipe, the 2nd branch pipe and the main pipe and introduced into a transplantation apparatus.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a seedling extracting device in a planting machine for transplanting seedlings.

(Prior Art) In order to improve the efficiency of planting seedlings, it is conventionally known to use a cart on which a worker can sit and on which a tray for growing seedlings can be placed. This trolley is configured so that the worker can kick the ground with his/her foot and use the reaction force to move it forward.
The premise is that when a worker reaches a predetermined planting location, he or she will manually take out the seedlings from the seedling tray and plant them underground. The problem in this case is that the worker is forced to maintain an awkward posture for a long period of time during planting.

In view of this point of view, a rice transplanter that applies the mechanism of a rice transplanter has been proposed. This transplanting machine includes a stand on which a seedling tray is placed, and has a mechanism for hooking the seedlings placed on the stand with transplant claws and transplanting the seedlings to the ridges. This method uses a paper seedling tray made of paperboard arranged in a lattice pattern to form a plurality of cells. In this case, the seedlings in each cell are transplanted by hooking the seedlings along with the paperboard portion that defines the cell using the transplanting claw of the transplanting machine and inserting the seedlings into the ground.

However, the above-mentioned known transplanting machines are based on the use of paper trays, and in order for the roots of adjacent seedlings to grow beyond the cell walls and in an intertwined state, they are removed from the paper tray by means of the grafting claws. When separating the seedlings, the roots of the seedlings are cut and hurt, and there is a risk of disease bacteria entering through the cut roots.Also, since the seedlings are transplanted with paper, this has a negative effect on root growth. It has been pointed out that the drawback is that there is a risk. Rather than using a planting machine in combination with paper trays, this machine can be used in combination with synthetic resin seedling trays, which have individual cells and can prevent roots from intertwining with neighboring seedlings. A planter that does this is generally desired. However, even if the configuration of an existing transplanting machine, which is based on paper-based seedling trays, is converted to a transplanting machine that is compatible with synthetic resin seedling trays, damage to seedlings caused by transplanted nails cannot be avoided, and synthetic resin seedling trays cannot be used. Uruchino takes full advantage of the characteristics of resin seedling trays.

(Problems to be Solved by the Invention) Therefore, the present invention makes full use of the characteristics of a synthetic resin seedling tray, and extracts seedlings whose roots are prevented from entangling within the cells of the tray without relying on transplant claws. The main purpose of this invention is to propose a transplanting machine that can easily achieve complete automation through thorough mechanical work, which can supply transplanting equipment in an orderly manner and transplant into the ground regularly. .

Furthermore, the present invention can be easily and reliably controlled by synchronizing the operation of the entire planting machine with the automation of the planting work, and can selectively pull out seedlings from predetermined cells in the seedling tray to damage the seedlings. The purpose of this invention is to propose a seedling extracting device that can supply seedlings to a transplanting device in an orderly manner.

(Means for Solving the Problems) In order to achieve the above object, a seedling extracting device according to the present invention is arranged on a movable vehicle body of a planting machine,
It supports a synthetic resin seedling tray having a plurality of cells containing seedlings to be planted, and sequentially selectively extracts seedlings from predetermined cells, and has a plurality of through holes as the cells. A support member for supporting the seedling tray,
This support member is formed with an opening through which the seedlings extracted from the cells of the seedling tray through the open bottom can pass therethrough, and is further moved relative to the seedling tray in a predetermined direction in a plane parallel to the bottom surface of the seedling tray. The present invention is characterized in that the selection means is provided with at least one selection hole that can be selectively aligned with a predetermined cell of the seedling tray.

(Function) According to the above configuration, in order to select a predetermined seedling in the seedling tray placed on the support member, the selection means is moved relative to the seedling tray in a predetermined direction and the selection hole is moved. is aligned with a predetermined through-hole in the seedling tray through the opening in the support member, the selection for extracting a predetermined seedling in the seedling tray is completed, and the seedlings are removed from each cell of the tray by vacuum or It can be selectively extracted by appropriate means such as gravity drop.

(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 used in a planting machine having a seedling extracting device according to the present invention as a part thereof will be described based on the drawings. As shown in Figures 3A and 3B, the seedling tray 2
has a two-stage separated structure, with the upper stage forming the tray body 201 that accommodates the soil, and the lower stage forming the tray body 201.
A bottom body 202 is formed which fits into the bottom part of 01. The tray body 201 includes cylindrical cells 203 arranged in a staggered or grid pattern. This cell 203 has an open top 204 and an open bottom 20, as shown in FIG. 4A.
5, and a through hole is formed in the tray body 201 by these open top and open bottom parts. 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 section 204 and the open bottom section 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. Furthermore, as shown in FIG. 3B, the bottom body 202 that constitutes a part of the seedling tray 2 has a plurality of cylindrical fitting parts 206 on the bottom plate 214 that protrude to close the open bottom of each cell 203. They are arranged in a staggered or grid pattern. This fitting portion 206 is connected to the tray body 202.
The inner diameter of the open bottom 205 of the cell 203 and the outer diameter of the gap are in order to fit within the cell 203 and form the bottom of the cell 203 when the cell 203 is fitted with the cell 203 . 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. Also, the fourth
As shown in Figure B, the fitting portion 206 is provided with an interior space 208 having a closed top 213 spaced apart from the bottom plate 214 . By providing this internal space 208, the discharge port 207 rises above the bottom surface 209 of the bottom body 202, thereby improving the discharge efficiency of excess nutrient solution. In other words, if the discharge port is arranged on the same plane as the bottom surface, the discharge port 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. be. 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 An example of the pond of the seedling raising tray 2 described above 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. This cell 203 protrudes outward from the substrate 210, as shown in FIG. 6A, and
It has an open top 204 and an open bottom 205. 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 body 201 shown in Figures 5A and 6A has the same configuration as the bottom body (see Figures 3B and 48) already described, as shown in Figures 58 and 68. Therefore, the explanation will be omitted.

Third Embodiment of Seedling Raising Tray Another embodiment of the tray main body 2010 described above will be described based on the drawings. As shown in FIG. 7, the tray body 20
By forming the hollow part 211 between the cells 203 provided in FIG. 1, it is possible to reduce the weight compared to the tray body 201 shown in FIG. can be increased. The reason for this is that the tray body 20 shown in FIG.
When combined with 1, the hollow part 2 is formed by cooperation with the bottom plate of the bottom body.
11 is kept in a substantially sealed state.

How to use the tray during germination The assembly of the tray body 201 and the bottom body 202 described above will be explained by taking as an example the tray body and the bottom body shown in FIGS. 6A and 68. 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 Fig. 48.6B, the seedling growing trays 2 can be stacked to grow seedling buds. At this time, as shown in Fig. 8, the buds that have grown from the seedling tray 2a placed in the lower stage are
It will be housed in a space 208 formed within 02. After sowing, 3 to 3 minutes until sprouts (about 4 to 5 U) appear.
For four days, the seedling trays were stacked in a germination chamber.
Thereafter, the seedlings are transferred to the greenhouse, where the seedling trays are placed flat on a table (in this case, the seedling trays are not stacked), and a nutrient solution is applied uniformly by overhead spraying 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 Another example of the seedling raising tray 20 described above 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 seedlings with culture soil 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.
It's bigger than its size. Further, since the bottom body 202 combined with the tray body 202 has the same configuration as that described above, a description 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, the explanation thereof will be omitted.

Example 6 of Seedling Tray As shown in FIG. 11, cells 203 of the tray body 201
has a tapered upper part with a truncated conical shape with a cross-sectional area increasing toward the tip, and a cylindrical lower part. 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. Further, the bottom body 202 combined with this tray body 202 has the same structure as that in FIG. 10, so a description thereof will be omitted.

It is not necessarily necessary to provide a fitting part on the bottom body as described above,
Only a discharge port for discharging excess nutrient solution to the outside may be provided. 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 220 as shown in FIG. 12 is used for this purpose. This seedling extrusion device 220 includes a support base 221 that supports the tray body 202 and a push-out portion 222 that protrudes from the support base 221. This extrusion part 2
22, press the entire bottom of the soil evenly to release the seedlings to the open top 2.
04, it has a shape between the open bottom 205 of the tray body 201 and the groove, and is formed to be slightly higher (both higher than the height of the fitting part 206 of the bottom body 202) in the height direction. By pushing the seedling extrusion device 220 configured in this way through the open bottom 205 of the tray body 201, the seedlings can be pushed upward.As a result of this extrusion, the seedlings stick to the walls of the cells 203. The roots, which made it difficult to remove seedlings, can be separated from the cells, making it very easy to remove seedlings.

In addition, compared to the conventional case where the seedling extrusion device was inserted from the discharge port, the extrusion area becomes larger.
It does not damage the roots.

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 removed from the seedling tray in advance before the seedling tray is used in combination with the 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 growing 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 growing trays shown in FIGS. 7 to 10.

In order to make the most effective use of the seedling tray,
It is particularly advantageous to use it in conjunction with an automatic planting machine, as detailed below.

About the Planting Machine As shown in FIGS. 1 and 2, the planting machine A, which has a seedling extraction device according to the present invention in a part thereof, includes a vehicle body 1 equipped with an engine 101 etc. to move the planter on the ridge; A seedling extraction device 3 that supports the seedling tray 2 containing seedlings to be planted and selectively pulls out grown seedlings from the seedling tray 2.
, a forced seedling transport device 4 for forcibly transporting the extracted seedlings to a predetermined position by vacuuming, and a transplanting device 5 for transplanting the transported seedlings to the ridge. Automation of seedling transplantation can be achieved.

About the seedling extraction device The seedling extracting device 3 according to the present invention will be explained 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 seedling selection mechanism 302 and this seedling selection mechanism 30
2 and the forced seedling transport device 4, there is provided a transport vibrator 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 has a plurality of openings 304 having a shape and arrangement corresponding to the open bottom 205 of the seedling tray 2. (See Figure 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.

A seedling selection mechanism 302 as a selection means arranged under the pedestal 301 includes a sliding part 305 as a selection member that slides parallel to the lower surface of the pedestal 301 as a support member;
A drive section 306 as a guide drive means for moving this sliding section two-dimensionally in the X direction (longitudinal direction with respect to the seedling tray) and the Y direction (direction perpendicular to the X direction);
It is composed of a pedestal 301 and a supporting pedestal 307 arranged in correspondence with each other below the sliding part. The sliding portion 305 is composed of a band extending over the entire bottom surface of the tray, and this band is
It is wound around a pair of drums 320^, B extending in the X direction, and functions to move in the X direction by rotation of the drums to sequentially select predetermined cells of the seedling tray. In this embodiment, since six horizontal rows are used, three selection holes 308 are provided in the sliding part 305, and these selection holes 308 correspond to every other cell 203 in the Y direction. It has an interval of

The drive section 306 includes a first guide drive means (hereinafter referred to as first guide means) 3 for sliding the sliding section 305 in the X direction.
09, and a second part for sliding the sliding part 305 in the Y direction.
310 (hereinafter referred to as second guide means). The second guide means 310 includes two guide parts 321 extending parallel to the seedling tray and in the Y direction.
It has A and B.

A pair of partially threaded feed screw portions are formed in the first guide portion 321A, and the sliding portion 305 is fed in the Y direction by these screw portions. The other guide part 32
1B merely guides the feeding of the first guide means 309 in the Y direction. A motor 322 whose drive can be freely controlled is provided at one end of the guide portion 321A.
22 is fixed to the frame of the vehicle body 1. The other end of the guide portion 321 is rotatably attached to the frame of the vehicle body 1. Therefore, the guide portion 321A rotates as the motor 322 rotates by a predetermined amount, and as a result, the first guide means 309 is sent in the Y direction by a predetermined amount by screw feeding.

The first guide means 309 includes a pair of sending parts 323A that are threadedly engaged with the threaded part of the guiding part 321A, and a pair of sending parts 3 that are engaged to slide along the sending parts 323A on the guide part 321B side.
23B, and the sliding portion 3 fixed to one side of the feeding portion 3230.
05 in the X direction by a predetermined amount, and drums 320A, B connected to the motors and around which the sliding part 305 is wound. These drums 320A, B and motor 324A
, B are connected via rotating shafts provided on the drums 320A, 320B. A pair of the above-mentioned sending units 323A and B, motors 324A and B, and drum 320
A and B are arranged on opposite sides with the seedling growing tray 2 in between. As a result of this arrangement, drum 3
The manual a'B 505 wrapped around 20 must have sufficient width and length to move the selection hole 308 from one end of the nursery tray to the other in the X direction.

The support stand 307 has a plurality of openings 314 having a shape and arrangement corresponding to the opening 304 of the cradle 301, and is fixed to the frame of the vehicle body 1. Here, the distance between the support stand 307 and the pedestal 301 is determined by the band-shaped sliding part 30.
5 is the minimum that can slide, and therefore airtightness is maintained between the support stand 307 and the pedestal 301 using the sliding part 305 as a medium. In addition, each opening 31 of the support stand 307
4 are arranged to correspond to each opening 304 of the pedestal 301, allowing the seedlings to pass between them. As shown in FIG. 16, a transport pipe 303 is connected to the lower surface of the support base 307. This transport pipe 303 includes a plurality of first branch pipes 3 connected to an opening 314 of a support base 307.
15, and a funnel-shaped convergence n31 that bundles this branch pipe 315
6, and a second branch pipe 3 extending downstream from this convergence part 316.
17, and a main pipe 318 extending this second branch pipe 317 to the Higashi Nekatsu seedling forced transport device 4. 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 rows) are set as one block, there will be a total of 9 blocks. Can be divided. One block consists of eight first branch pipes 315 and one second branch pipe 317, and therefore, these eight first branch pipes 315 and one second branch pipe 317
The branch pipe 315 connects to one second pipe through the funnel-shaped eastern part 316.
It is focused into a branch pipe 317. Nine such configurations are provided in this embodiment, and the three second branch pipes 317 in the longitudinal direction are converged into one main pipe 318, so that one A book main pipe 318 will be formed. In this case, the failure of the main pipe 318 is caused by the sliding part 3
The number matches the number of selection holes 308 in 05. The reason for this configuration is that one selection hole among the three selection holes 308 formed in the sliding portion 305 is connected to the openings 30 in two vertical rows.
This is because the bridge slides as if holding 4 (24 pieces in the longitudinal direction in this embodiment). 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 extracting device 3 according to 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 a sliding portion is formed between the pedestal 301 and the support 307. 305 is configured to touch and move.

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 Y direction
08, the motor 322 of the second guide means 310 is driven and the selected hole of the sliding part 302 is moved by a predetermined amount in the Y direction via the first guide means 309 by feeding the screw by a predetermined amount. As a result, new seedlings adjacent in the Y 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 onto drum 320A, aligning longitudinally adjacent subsequent openings 304 and selection holes 308. While repeating this operation continuously, select holes 30 in the sliding part.
8 to the open bottom portion 205 at the end of the seedling growing tray (the end on the guide portion 321A side), and the seedling extraction work in this embodiment is completed.

This embodiment is not limited to the above-described configuration, and for example, as shown in FIG. 148, in addition to the three selection holes 308, three second selection holes 308A are provided in the sliding portion 305. and is suitable. These second selection holes 308A are provided at positions shifted by one row from the selection holes 308 in the Y direction, and in the X direction, the selection holes 308A
After all the seedlings in the row that 08 is in charge of are pulled out, the drum 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 1, and
It has a plurality of gate portions 304 having a shape and arrangement corresponding to the open bottom portion 205 of the seedling raising 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 Y 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 Y direction, and is connected to the three transporting vibrations 303 via flexible vibrations on the bottom side.

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 in the Y direction. The first guide means 309 includes a first sending section 330 that engages with the sliding section 305, and a first guiding section 331 for guiding the first sending section 330 in the X direction. First guide part 3
31 are first guide bodies 332A and 332B disposed on opposite sides with the pedestal 301 in between and extending in the Y direction;
It includes a first guide belt 333 that connects the guide bodies 332A, 332B and the first feeding section 330.

Each pair of first guide belts 333 is disposed on opposite sides with the pedestal 301 in between and extends in the X direction, and has a pulley 334 fixed to the first guide bodies 332A and 332B.
, B and the Boo! rotatably attached to both ends of the first feeding section. J335A and J335B are connected respectively. Therefore, Boo'J 3348 placed at both ends.

The first guide belt 333 moves with the rotation of B, and the first feeding section 330 can be moved in the X direction following this movement.

One end of the first guide body 332A 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.
5 must be moved by a predetermined amount, it is preferable to use a toothed belt as the first guide belt 333, and accordingly, the pulley 334^.

B and 335A, B are also preferably 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 includes a second feeding section 340 engaged with the sliding section 305;
A second guide section 3 for guiding this second sending section in the Y direction
41. The second guide section 341 includes second guide bodies 342A and 342B extending in the X direction, and a second guide body 342B that connects the second guide bodies 342A and B with the second feeding section 340.
A guide belt 343 is provided.

Each pair of first guide belts 343 extends in the Y direction and is rotatably attached to pulleys 344A, B fixed to the second guide bodies 342A, H and to both ends of the second feed section. Boo'J345A and B are connected to each other. One end of the second guide body 342^ of the pair of second guide bodies 342A and 342B 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, the seedling tray 2 is placed so that each open bottom 205 of the seedling tray 2 corresponds to each opening 304 of the pedestal 301.
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 part is moved to the open bottom 205 at the other end of the seedling tray in the longitudinal direction.

After that, the opening 304 and the selection hole 308 adjacent in the Y direction
In order to match the motor 3 of the first guide hand 310
46, the belt 343 is fed by a predetermined amount, and the first feeding section 340 is accordingly moved by a predetermined amount in the Y direction. 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 Y direction are extracted from the cell 203,
This seedling is sent to the transplanting device 5. After this seedling is sent out, the driving direction of the control motor 336 of the first guide means 309 is reversed, and the sliding part 305 is sent by a predetermined amount in the X direction to select the subsequent opening 304 adjacent to the longitudinal direction. Match the hole 308 and pull out a new seedling. 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. Since this embodiment has many parts in common with the embodiment shown in FIG. 14 in terms of structure, 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 support member disposed at the center, and a drive unit 306 (as shown in FIG. 14) for moving this pedestal two-dimensionally in the X direction and the Y 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 I is arranged on the bottom side of the pedestal 301, and the pedestal 301 and the selection member 305 are in relative sliding contact. Three selection holes 308 are arranged in the Y direction in the center of the selection member 305.
is provided in each selection hole 308, and each transport pipe 3
03 are connected. Here, in order to slide the pedestal 3 old on the sliding surface of the selection member 305 in the X and Y directions and pull out all the seedlings in the seedling tray, the selection member 305 must be moved in the It is preferable to form the tray at least 1.5 times the size of the seedling tray in the Y direction. Also, the selection hole 308 is inserted into the selection member 30.
It is preferable to arrange it in the center of 5.

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. While repeating such controlled feeding, the open bottom 205 at the other end of the seedling tray and the selection hole 308 of the selection member 305 are
The pedestal 301 is sent in the longitudinal direction until the two match. Thereafter, the slider is moved by a predetermined amount in the Y direction by the controllable second guide means 310 in order to align the selected hole with the opening adjacent in the Y 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 Y direction are selectively extracted. Thereafter, the driving direction of the control motor 336 of the first guide means is reversed, and the sliding portion 305 is moved in the opposite direction to the X direction.
is fed by a predetermined amount, and new seedlings are selectively extracted by aligning the selection holes with subsequent longitudinally adjacent openings. While repeating this operation continuously, the opening 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.

Regarding the forced seedling transport device, the forced seedling transport device used in combination with the seedling extracting device according to the present invention will be described below.

17.18 shows the transport pipe 3 connected to the opening 314 of the support 307 or the selection hole 308 of the selection member 305.
17 shows the main parts of the forced seedling transport device 4, including the 03 (herein, the support stand 307 is shown as a representative). As shown in FIG. 1, this forced seedling transport device 4 includes a known vacuum body 401 for removing air in the direction of arrow B, a suction pipe 402 connected to this body, this suction pipe 402, and a transport pipe. It further includes a suction part 403 that connects with This suction part 40
3 includes a cylindrical enclosure 405 that surrounds a plurality of openings 404 provided at uniform intervals 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 surrounding surface of the enclosure 4050.

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 apply sufficient inertial force to the seedlings when they pass through the suction section,
It is preferable to arrange the transport pipe near the suction section 403 in the vertical direction. In addition, an on-off valve 4 is provided at the end of the transport pipe 303.
By providing 06, it is possible to reliably vacuum the seedlings within the transportation pipe 303. By connecting the forced seedling transport 4 configured as described above and the seedling extracting device 3 through the transport pipe 303, it is possible to extract the seedlings from the bottom of the seedling growing tray 2.

Transplanting Device The transplanting device 5 used in the transplanting machine A, which has a seedling extraction device according to the present invention as a part thereof, 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 vibe 303. As shown in FIGS. 20 and 21, this transplanting device 5 includes a transplanting mechanism 501 for transplanting seedlings sent through a transport vibrator 303 to a ridge, and a transplanting mechanism 501 for guiding this transplanting mechanism along the ridge. It is composed of a frame 504 to which a pair of front wheels 502 and a pair of rear wheels 503 are attached.

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 510 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 V-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 drawing hole 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, in the transplanting device having the front wheel and the rear wheel configured as described above, there is a possibility that the transplanting machine may not be able to reliably run on the center of the ridge because the hardness of the ridge is different between the right and left parts. 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 ride on 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 generally matches the shape of the ridge, and a pair of ridge pressing portions 507 are provided at the inner end of the curved portion 506. This wheel-shaped ridge pressure f! ! 6507 is spaced apart from both sides so as to sandwich the planted seedling, and has a recess 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 a ridge is covered with mulch 510 by a mulch laying device and then seedlings are transplanted to the ridge by a transplanting mechanism 501, a step of providing perforations in the ridge and then arranging the seedlings in the perforations. (Details will be described later) are taken. In this case, the perforation is slightly thicker (formed) than the root of the seedling, so when the seedling is placed in the perforation,
As shown in FIG. 29, a slight gap is created between the outer peripheral surface of the perforation 54 and the roots of the seedling. These gaps must be filled in as they become an obstacle to the growth of seedlings. The above-mentioned ridge pressing section 50 is provided to achieve this purpose.
It is 7. As shown in FIG. 30, the ridge pressing section 507 is constantly operating at the top of the ridge so as to press the ridge from above to below by the weight of the transplantation device 5. Therefore, when the ridge pressing part 507 moves near the seedling, the soil pushed in from both sides of the seedling by the ridge pressing part 507 fills the gap between the outer peripheral surface of the perforation 54 and the root of the seedling. Therefore, successful transplantation of the seedlings can be completed.

Since the front wheel 502 having the curved portion 505 and the rear wheel having the curved portion 506 described above can reliably guide the ridge, the ridge 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 a ridge pressing portion 507, respectively. This curved part 506 is formed to follow the mountain shape of the ridge, and the ridge pressing part 507 is wheel-shaped and is provided at the inner end of the curved part, 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, if the ridge pressing section 507 is made of a hollow rubber tire, the pressing force against the ridge can be adjusted by adjusting the amount of air inside.

Example 1 of Transplanting Device Hereinafter, a transplanting mechanism 501 provided in the transplanting device 5 used in combination with the seedling extracting device according to the present invention will be explained based on FIGS. 20 and 21. This mechanism 501 is
A planting means 520 for forming perforations 54 for seedling transplantation (see FIG. 30) in the mulched ridge and simultaneously arranging the seedlings in the perforations; and a driving means 521 for driving the planting means 520. , 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 by the transport vibrator 303 are sent into the planting means 520.

The implanting means 520 includes a beak-shaped perforation body 523 that can be opened and closed to form a perforation into a ridge, and an opening/closing mechanism 524 for opening and closing the perforation body 523 at a suitable time.

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. Further, the upper end of the main body 526 of the perforation body and the downstream end of the transport vibrator 303 are connected by a flexible vibrator, and as a result, a transportation route for the seedlings is secured according to the displacement of the perforation body 523. be able to. In this example, a transplanting device is shown in which the transporting vibrator and the perforating body are connected by a flexible vibrator, but in another embodiment, the seedlings sent through the transporting vibrator are transferred to the downstream end of the transporting pipe. It is also possible to drop the body 526 of the perforated body 523 and take the receiver at the upper end of the body 523 of the perforated body.
It is more preferable to form the upper end into a funnel shape.

As shown in FIG. 31, the first perforation part 523A
The upper end is pivotally supported by the main body 526 so as to rotate about 27. An opening/closing mechanism 52 is provided at the upper end of the second perforation portion 523B.
An arm portion 528 constituting a part of 4 is provided.

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 530 is provided at the other end of the arm portion 528, and this roller 530 is configured to cooperate with a roller sliding portion 531 (specific configuration will be described later) that constitutes a part of the opening/closing mechanism 524. It is something. A rotatable pressing roller 532 is provided on the fulcrum 527 side of the arm portion. This pressing roller 532
8 rotates around the fulcrum 529, the first perforation part 523 described above is pushed and the first perforation part 523^ is rotated around the fulcrum 527.
In order to suitably press the first perforated part 523A with the pressure roller 532, a stepped part 533 is formed on the first perforated part 523A.
form. This stepped portion 533 is provided between the fulcrum 527 and the tip of the first perforated portion 523A, and extends outward from the end on the fulcrum side of the first perforated portion extending in the vertical direction. It is formed like this. Further, the stepped portion 533 is
The pressure roller 532 is disposed below and close to the pressure roller 532.

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,
A roller sliding part 531 forming part of the opening/closing mechanism 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 531A of the roller sliding part 531 in this embodiment
When the implantation means 520 rotates and comes to the lowest position,
It is arranged at a position where the roller 530 of the arm part contacts. The other end 531B of the roller sliding portion 531 is located at a position where the roller 530 separates from the sliding surface 531C of the roller sliding portion 531 when the implanting means 520 moves approximately 374 times in the direction of arrow E from the uppermost position. It is located in

Furthermore, a curved sliding surface 5 is provided between the ends of the roller sliding portion.
31C is formed, and the rotation angle of the arm portion 528 changes depending on this curved state. For example, the sliding surface 531C
When the roller 530 and the sliding surface 531C come into contact with each other in the radial direction away from the center point of the rotational trajectory of the roller that moves with the rotation of the implantation means 520, the rotation angle of the arm portion 528 becomes smaller. When the roller 530 and the sliding surface 531C come into contact with each other when the sliding surface 531C approaches in the radial direction from the center point of the rotational trajectory of the roller, the rotation angle of the arm portion 5280 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 from the uppermost position in the direction of arrow E, that is, when the roller 530 reaches the end 531A of the roller sliding portion. When the arm 852B reaches its maximum angle of rotation, the implantation means 520
The arm portion 528 is arranged in such a position that the arm portion 528 is restored to the parallel state when the roller 530 is rotated approximately 3/4 times, that is, when the roller 530 approximately reaches the other end portion 531B of the roller sliding portion. Furthermore, as shown in FIG. 31, the sliding surface 531C has a rotation angle that gradually decreases as the roller moves upward between the ends 531A and 531B of the roller sliding section. It has a curved shape.

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 zero rotation angle becomes smaller, and the implantation means 520 becomes approximately 37
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 original uppermost position, completing the transplantation of suitable seedlings. be able to.

As shown in FIG. 20, the guide means 525 for appropriately rotating the implantation means 520 includes a pair of supports 540A and 540B provided on the main body 526 of the implantation means, and a pair of supports 540A and 540B, respectively. 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 purposes.

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, support 540A.

B are spaced apart from each other in the vertical direction 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.

Each guide body 541A, B is provided parallel to both side surfaces of the frame 504, and the above-mentioned support body 540A
, B are formed with guide grooves 542A and 542B for guiding them. The guide grooves 542A and 542B are formed in an annular shape, as shown in FIG. Annular guide groove 542
The center of B is not arranged concentrically with respect to the center of the annular guide groove 542^, but is arranged eccentrically upward in the vertical direction. This eccentric distance corresponds to the eccentric distance between the supports 540A and 8.

The aforementioned guide grooves 542^, 8 are not limited to annular shapes, 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 52 of the implantation means.
6 is rotatably attached to the hydraulic cylinder 543.
The end of the main body of is rotatably attached to the frame 504. 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. In addition, the hydraulic pressure of the hydraulic cylinder is such that, despite the advancement of the transplanting device 5, while the perforation body 523 is placed in the salmon meat, the perforation body remains stationary at a fixed place without shifting in the front-back 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 implanter &520 from diagonally above the rear, the moving speed of the implanting means is horizontal moving speed V,
and vertical movement speed V2. Therefore, when the implantation device 5 is moving forward at a speed V, the horizontal movement speed VI of the implantation means is parallel to and opposite to the direction of the movement speed V of the device while the perforation body is placed at least in the salmon meat. None, and the same speed as the moving speed V (V, = V
The rotation of the implantation means is controlled by hydraulic control of a hydraulic cylinder so that the following relationship is established. Therefore, even if a force is applied from diagonally above the rear of the implantation means 520, the implantation means 520 can be kept at a predetermined position in the ridge in the horizontal direction for a predetermined period of time, and at the same time, the implantation means 520 can be kept at a predetermined position in the ridge in the vertical direction. It can be moved up and down 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 vibrator 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.

Right on the opposite side of the shaft 54B across the transportation vibrator 303,
A piston tip of a hydraulic cylinder 545 that is hydraulically controlled is attached to the switch 544, and the hydraulic cylinder 545 is fixedly disposed on a top plate 547. The hydraulic cylinder in this example constitutes a single-acting piston,
This piston only moves forward in order to open the switch 544, and the piston is moved back by a compression spring 546. In order to facilitate the retraction of the piston, the piston and the compression spring are arranged in a straight line, and the spring 54
6 is attached to the tip of the piston, and the other end is attached to the top plate 5.
It is fixed at 47.

By configuring the control means 522 as described above, the timing at which the 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. 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:
An additional multi-opening means 550 is provided, which comprises an arm 551 extending horizontally forward from the body 526 and having one end fixed to the body, and an arm 551 attached to the distal end of the arm 551. It consists of a pressing iron 552.

The aforementioned arm 551 is composed of a first arm portion 551A having one end fixed to the main body 526, and an L-shaped second arm portion 551B rotatably attached to the center portion of this arm portion. . In addition, the first part 551A and the second part
A buffer body 553 and a tension spring 554 are attached between the arm portion 551B and the arm portion 551B. This buffer 553
It is attached to the tip of the second arm part so as to maintain a constant distance between the arm part and the second arm part, and it is in contact with the first arm part to absorb the force applied to the second arm part. It is located. The tension spring 554 is attached so that a tension force is exerted between the first arm part and the second arm part in order to keep the buffer body 553 and the first arm part in contact with each other at all times.

The aforementioned pressing 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 5200 revolutions of the implanting means, and has a configuration in which an opening for transplanting the next seedling is formed in the mulch in advance while the seedling is being transplanted using the perforator. I need to take it. Therefore, the pressing trowel is placed at a position where the surface of the mulch and the bottom surface of the pressing trowel come into contact while the seedlings are being transplanted by the perforator 523 at the lower end of the second arm portion 551B, and The mulch openings 5 are placed at the same intervals as the perforators are used to transplant seedlings.
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. Moreover, by making the opening gamma joint 552A and the iron main body 552B capable of being screwed into engagement with each other, 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 perforator moves to approximately the lowest position and is fully inserted into the salmon meat, the roller 530 of the arm portion 528 moves 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, the pressing iron 5 provided on the multi-opening means 550
52B forms a predetermined opening in the multi 510. After that, as shown in FIG. 35, the roller sliding surface 531
While the roller moves on C, the perforator 523 is maintained in an open state, and at the same time, the perforator continues to rise 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. after that,
When the perforator moves close to 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.

When 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 placing seedlings in salmon meat, 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 attached to the frame 604 and communicates between a pair of toothed guide bodies 641A and 641B which are interlocked with the drive means 621 and the main body of the implantation means to provide guidance. a pair of supports 640A, B provided for transmitting body rotation to the body of the implantable means;
It is composed of.

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 made of 2a material. One first member 662A, B is fixed to the main body 526, and the other second member 663A, B is a guide body 641A.
, B, and are 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 640^ and B are spaced apart from each other in the vertical direction by a predetermined distance and extend in parallel,
They are arranged on opposite sides of the main body so as to be perpendicular to the side surface of the guide body 641.

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 641A, but is arranged eccentrically upward in the vertical direction. This distance between the centers matches the distance between the centers of supports 640A and 640B.

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 is a pair of gear-shaped sprockets 660A and 660B fixed to both ends of the shaft of the rear wheel 503, and 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 transmission for automatically controlling the rotational speed of the punching body so that the punching body moves only in the vertical direction at a predetermined position without shifting in the front-back direction when the punching body is inserted into at least salmon meat. (not shown) is preferably interposed between the sprocket 660 and the guide body 641.

Embodiment 2 of control means Planting means 5 for seedlings sent by transport vibrator 303
Control means 622 for controlling the timing for feeding into 20
As shown in Fig. 35.38.39.40, a switch 644 in the form of a band-shaped loop body disposed adjacent to the most downstream end of the transport pipe 303 and a switch 644 for sliding this loop body are provided. A pair of rotating bodies 670^ and B are provided.

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^, B are formed in the upper and lower loop bodies, and these seedling holes 665
^ and B are arranged at symmetrical positions with respect to the central axis of the pipe, as shown in Fig. 39.

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 1J666 is connected to a bell 661B that is linked to the rear wheel 503, so 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 suppression 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 transplantation device 7 according to this embodiment, the 20th and 3rd
Portions common to the configuration of the embodiment shown in FIG. 5 are designated by the same reference numerals, and detailed explanations will be omitted.

This transplanting mechanism 701 includes a planting means 520 for placing seedlings in salmon meat, a driving means 621 for driving the planting means, a guiding means 725 for guiding the planting means at least in the vertical direction, and a transportation means 520 for placing seedlings in salmon meat. 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 to guide the guide. It consists of a pair of supports 740^, B provided to transmit the rotation of the body to the main body of the implantation means.

Each of the rod-shaped supports 740A and 740B is
As shown in the figure, it is arranged in the shape of a crank and is composed of two members. One first member 7
62A and 62B extend perpendicularly to the side surface of the guide body 641, and are fixed to the main body 526 at one end.

One end of the other crank-shaped second member 763A, B is fixed perpendicularly to the peripheral edge of the side surface of the guide body 641A, B, and the other end is pivotally connected to the end of the first member. . Further, as shown in FIG. 43, the support body 740B is eccentrically arranged vertically above the support body 740A. Therefore, each support 740A, B protrudes outward from the outer periphery of the guide by the length of the crank arm.
The radius of rotation of each first member 762A, B of the support is approximately equal to the radius of rotation of the guide 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 their centers matches the distance between the centers of support 740^ and B.

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 6410, and at the same time, the beak-shaped perforation body 523 can be always oriented in the vertical direction. .

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 Mud removal means 680 for removing mud adhering to the perforation body 523 is arranged below the perforation body 523, as shown in FIG. 20.41.44. The mud removal means 680 consists of a mud removal main body 681 fixed to span the lower frame of the frame 504, 604, and a mud removal opening 682 formed in the middle part of this main body. It is configured.

The mud brush main body 681 is formed into a thin plate shape, and
It 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 end 682A of the opening 682, [3 is
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 perforated portion 523A comes into contact with the end portion 682 of the opening, allowing mud on the surface of the first perforated portion 523A to be removed. Then, when the perforated body 523 rises, the surface of the second perforated part 523B comes into contact with the end 682B of the opening,
Mud on the surface of the second perforated portion 523B can be removed.

It is preferable to provide elastic bodies 683^, 8 for mud removal, such as elastic rubber, at each end 682A, B of the opening 682.

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 an elastic body, such as a spring 699, at the end of each of the implants 51 and 53, each implant device can suitably follow each ridge.

- Regarding the mass 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 mass 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. Seedling forced transport device 4 for forced transport to the location
and a transplanting device 5 for transplanting the transported seedlings to the ridge.
It is composed of:

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 for a collective 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 has an exhaust pressure unit 70
2, and this exhaust pressure unit 702 is connected to the suction pipe 402 of the forced seedling transport device 4. Therefore, by driving the engine 701, 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.
uses the one shown in FIG. 25, and the rear wheel 503 is the second
Using the one shown in Figure 6, the seedling raising tray 2 is placed in the 3rd to 7th
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 batch transplanting 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 a305 of the seedling selection mechanism 302, seedlings can be picked up one by one as the sliding part 305 moves in the X direction or the Y direction. It can be extracted. The other configurations of the seedling selection mechanism 3020, such as the configuration of the drive unit 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, there is provided 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 section 305B that slides in a direction perpendicular to the X direction (Y direction), a first guide means 309 for moving the first sliding section 305A in the X direction, and a second sliding section. a second guide means 310 for moving in the Y direction, and a first sliding section 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 drums extending in the Y direction to wrap the band and move it in the X direction. 320A
, 8. A plurality of first selection holes 308A are provided in the band of the sliding part 305 in the Y direction. It is designed to correspond to

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 305^ in the X direction, and a driving section 306 for driving the first sliding section 305B in the Y direction. and a second guide means 310 for sliding in the direction.

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
It is equipped with 20A and 20B. This drum 320^, B
and the motors 324A, B are connected to the drum 320A,
This is done via a rotating shaft provided at B.

The second guide means 310 includes a sending section 340 that engages with the second sliding section 305B, and a guide section (not shown) for guiding this sending section in the Y direction. Second guide means 31
The configuration of 0 uses the one shown in Figure 14, so
Detailed explanation here will be omitted.

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 part 305^ 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 raising tray 2 and the row of first selection holes 308^ are aligned. . Thereafter, while the second sliding portion 305B is slid in the Y direction by the second guide means 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 part 305^ is shifted by - row in the X direction, and the second sliding part 305B moves in the Y direction, pulling out the seedlings in this row one by one. By repeating this process, you can pull out the seedlings one by one from the seedling tray and transfer them to transport pipe 3.
It can be sent to 03.

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 device 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 transplanting machine H includes a planting means 520 for placing seedlings in the salmon meat, 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 660^, B fixed to both ends of the shaft of the front wheel 502, and toothed bells 661A, B for connecting the sprockets and the guide body 641. It is growing. Therefore, as the front axle rotates 5020 times, the subrocket 660A,
B rotates, the rotation rotates the guide body 641, and the supports 640A and B rotate and move following the rotation.

By passing the bell) 661A around the pulley 710 provided at the end of the shaft of the engine 701, the front wheel 502
can be driven by the 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 50
2. The guide body 641 and the rotating body 670B rotate at the same time, and 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 Fig. 4.8.51, the 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.

Also, - the configuration of the device applied to the intensive planting machine is specified in Section 48.5.
It goes without saying that it is not limited to what is shown in FIG. 1 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 FIGS. 52 and 53.

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 transported from the upstream side (tray side) to the downstream within the transport pipe. It will be carried toward the side (the perforated body side). In this case, the switch is in a closed state.

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 implantation device 5 moves to approximately the uppermost position P1, the switch k becomes open, and the N in 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 to pull out the subsequent seedlings present in the seedling growing tray from below, and pass them through the transport pipe 303 to N.

Seedlings are sent to the position. Thereafter, when the perforation body 523 has moved approximately to the uppermost position P+, the switch k is opened and the seedling is fed into the perforation body 523 to the position N4. The process of transplanting the seedlings progresses by repeating these steps.

Additionally, a sensor S is provided at position N. This sensor S detects that the seedlings are N immediately before the switch k opens.
This is a device that detects whether or not a person actually exists at a location. 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.

The above-mentioned planting machine has been explained assuming a field with ridges, but 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 extraction device according to the present invention is arranged on a movable vehicle body of a planting machine, and is made of synthetic resin and has a plurality of cells containing seedlings to be planted. The device supports a seedling growing tray and sequentially selectively extracts seedlings from predetermined cells, and includes a supporting member that supports the seedling growing tray having a plurality of through holes as the cells, and the supporting member supports a seedling growing tray. forming an opening through which a seedling extracted from the cell of the tray can pass through its open bottom;
Furthermore, the selection means is provided with a selection means that can face the seedling growing tray in a predetermined direction in a plane parallel to the bottom surface of the seedling growing tray, and the selecting means has at least one selection hole that can be selectively aligned with a predetermined cell of the seedling growing tray. By having a configuration in which a The seedlings can be selectively taken out from the seedling tray in a state where the seedlings are not in the seedling tray, and therefore, the seedlings can be selectively taken out one after another from a predetermined cell and supplied to the transplanting device in an orderly manner. As a result, it is possible to prevent root cutting pain when selecting seedlings, and it is also possible to eliminate invasion of diseased bacteria to transplanted seedlings and adverse effects on root elongation. Furthermore, when the seedlings are transplanted using a transplanting machine, the roots of the seedlings do not suffer from cuts and pain, and complete automation can be easily achieved using a thorough mechanical operation.

Furthermore, when viewed as a planting machine, an additional effect is that by separating the seedling extracting device and the seedling transplanting device, there is no need to move the transplanting device to the position of the seedling tray, and it is possible to remove only one seedling. Since a plurality of transplanting devices can be applied to the device, it is possible to easily promote multi-row transplanting devices.

[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.
Figure 4A is a sectional view taken along line IVA-IVA in Figure 3A; Figure 4B is a sectional view taken along line IVB-IVB in Figure 3B; Figures 5A and B are views of the seedling tray. 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-■B in Fig. 5B; Fig. 7 is a sectional view of the seedling tray. Fig. 8 is an enlarged sectional view of main parts showing a state in which seedling-raising trays are stacked, and Fig. 9 is a main part of the tray main body and bottom body of a fourth embodiment of the seedling-raising tray. FIG. 10 is a cross-sectional view showing main parts of the tray body and bottom body of the seedling-raising tray in the fifth embodiment, and FIG. 11 is a main part 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 a first embodiment of a seedling extraction device used in a planting machine; FIG. 138 is a sectional view showing seedling removal from the tray body; Fig. 14 is a perspective view showing a second embodiment of the seedling extraction device used in a planting machine; Fig. 15 is a seedling extraction device used in a planting machine. A perspective view showing a third embodiment of the device; FIG. 16 is a perspective view showing the upstream end of a transport pipe used in a planting machine; FIG. 17 is a perspective view showing a forced seedling transport device used in a planting machine; Figure 18 is a 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 sectional view taken along line I-1 in FIG. Fig. 47 is a plan view showing the second embodiment of the planting machine, Fig. 48 is a perspective view showing the first embodiment of the single-row planting machine, and Fig. 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. 2... Seedling raising tray 3... Seedling extraction device 20
3...Cell 205...Open bottom part 301
... Support member (cradle) 302 ... Selection means (seedling selection mechanism) 304 ... Opening 305 ... Selection member (
sliding part) 305^...first selection member (first sliding part)
305B...Second selection member (second sliding part) 306.
... Guide drive means (drive section) 307 ... Support stand 308 ... Selection hole 30
9...First guide drive means (first guide means) 310.
...Second guide drive means (second guide means) 314...
Opening 320A, B...Drum A...
Planting MachineFigure 3AFigure 3BFigure 5AFigure 5BFigure 6AFigure 6BFigure 7Figure 72+4Figure 9Figure 10Figure 20Figure 22Figure 23Inner SpoutFigure 39Figure 40Figure 641B Figure 44 Figure 46 Figure 43 Figure 50

Claims (1)

[Scope of Claims] 1. Disposed on a driveable vehicle body in a planting machine,
A seedling raising tray that supports a synthetic resin seedling tray having a plurality of cells for storing seedlings to be planted and sequentially selectively extracts seedlings from predetermined cells, the seedling raising tray having a plurality of through holes as the cells. a support member for supporting the tray;
This support member is formed with an opening through which the seedlings extracted from the cells of the seedling tray through the open bottom can pass therethrough, and is further moved relative to the seedling tray in a predetermined direction in a plane parallel to the bottom surface of the seedling tray. 1. A seedling extracting device comprising: a selection means capable of selectively aligning the seedlings with a predetermined cell of a seedling tray; 2. The seedling extracting device according to claim 1, wherein the selection means includes a band extending over the entire bottom surface of the support member, and a pair of drums that move the band in the longitudinal direction by winding it up. guide driving means for driving these drums in the winding direction of the band; a plurality of selection holes are arranged in the band at a distance from each other in the width direction; A seedling extracting device, characterized in that it can be driven by the guide drive means to align the seedlings with predetermined cells in a seedling growing tray. 3. The seedling extraction device according to claim 1, wherein the selection means includes a band extending over the entire bottom surface of the support member, and a pair of drums that move the band in the longitudinal direction by winding it up. These drums are provided with first guide drive means for driving the drums in the winding direction of the strip, and second guide drive means for driving the drums in the width direction of the strip. A smaller number of selection holes than the number of rows are arranged to be spaced apart from each other in the width direction, and the selection holes are
A seedling extracting device characterized in that the band can be driven by a first or second guide drive means as required to align it with a predetermined cell in a seedling growing tray. 4. The seedling extracting device according to claim 2 or 3,
The selection means includes a support stand fixedly arranged adjacent to the band body on the opposite side of the support member of the seedling tray to support the band body while maintaining airtightness, and The same number of openings are formed in the same arrangement as the openings in the member, each selection hole in the band corresponds to a plurality of openings in the support, and the seedlings extracted from the cells in the seedling tray are placed in the plurality of openings. A seedling extraction device characterized in that the opening of the seedling can be forcibly transported to a predetermined position via a common passage. 5. The seedling extracting device according to claim 1, wherein the selection means is a first band extending over the entire bottom surface of the support member and having a plurality of selection holes spaced apart from each other in the width direction. a pair of drums that move the first selection member in its longitudinal direction by winding it up, a guide drive means that drives these drums in the winding direction of the first selection member, and a plurality of selection members. a second selection member having holes spaced apart from each other in the longitudinal direction of the first selection member; and a second guide drive means for moving the second selection member in the width direction of the first selection member. A seedling extracting device comprising: a structure for extracting seedlings from cells of a seedling tray aligned with selection holes in the first and second selection members. 6. The seedling extracting device according to claim 5, wherein the seedlings extracted from the cells in the seedling growing tray can be forcibly transported to a predetermined position through a common path for the plurality of selection holes in the second selection member. A seedling extraction device featuring: 7. The seedling extracting device according to claim 1, wherein the selection means includes a polyhedral block-shaped sliding portion disposed adjacent to the bottom surface of the support member, and a sliding portion that moves the sliding portion in the longitudinal direction of the seedling tray. and a second guide and drive means for driving the sliding section in the width direction of the seedling tray, and the at least one selection hole disposed in the sliding section is configured to move the sliding section as required. 1. A seedling extracting device, characterized in that it can be driven by a first or second guide drive means depending on the conditions to align the seedlings with predetermined cells in a seedling growing tray. 8. The seedling extracting device according to claim 7, wherein a plurality of selection holes are arranged in the sliding portion so as to be spaced apart from each other in the longitudinal direction or the width direction of the seedling growing tray. 9. The seedling extracting device according to claim 7 or 8, wherein the seedlings extracted from the cells in the seedling growing tray are brought to a predetermined position through a selection hole in the sliding part and a flexible passage connected to the selection hole. A seedling extraction device characterized by being able to be forcibly transported. 10. The seedling extracting device according to claim 1, wherein the support member is constituted by a pedestal movable in the longitudinal direction and the width direction of the seedling tray, and driving means for driving the pedestal in both directions is provided, and the selection The means includes a selection member disposed in relative sliding contact with the pedestal, and the at least one selection hole disposed in the selection member drives the pedestal as required by the guide drive means, A seedling extracting device characterized by being capable of aligning with predetermined cells in a seedling growing tray. 11. The seedling extracting device according to claim 10, wherein a plurality of selection holes are arranged in the selection member so as to be spaced apart from each other in the longitudinal direction or the width direction of the seedling growing tray. 12. The seedling extracting device according to claim 10 or 11, wherein the seedlings extracted from the cells in the seedling growing tray can be forcibly transported to a predetermined position via a selection hole in the selection member and a passage connected to the selection hole. A seedling extraction device characterized by: