JPH0787810A - Seeder - Google Patents

Abstract

PURPOSE:To provide a seeder capable of sowing by plural suction boxes so as to be able to efficiently seed to a large number of cell trays, because a suction box of a suction type seeder for sucking seeds onto a suction sowing port by oscillation and sowing seeds sucked onto the cell tray to be carried requires much time to oscillation for suction, though the suction box has good sowing accuracy. CONSTITUTION:This seeder C is constituted so as to hang plural suction boxes and rotate and carry these plural suction boxes 1 by rotation rings 4L and 4R, oscillate these suction boxes 1 during the rotation and carrying to suck seeds onto a suction sowing port and sow the seeds onto a cell tray T stopped on a carrying apparatus F when the suction box 1 reaches sowing position (c).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a seeding device for sowing seedlings in each cell portion during transportation of a cell tray for raising seedlings.

[0002]

2. Description of the Related Art A suction type seeding machine comprising a suction box having a suction chamber inside and a suction seeding plate having a plurality of suction seeding openings opened in the suction chamber, and the suction type seeding machine is conveyed onto a conveying device. By the time the cell tray for raising seedlings reaches the seeding position, the suction box is swung back and forth, left and right to adsorb seeds to each suction seeding port, and after adsorption is completed, the suction box is inverted and sucked to the seeding position. When the cell tray is oriented toward the seeding port and the cell tray reaches the seeding position, the suction chamber is opened to the atmosphere, and the seed adsorbed at each suction seeding port is seeded in each cell portion of the cell tray. Proposed by the applicant.

[0003]

However, in the prior art, it is a manual work, and the swinging of one suction box in the seeding machine causes the seeds to be adsorbed to all the suction seeding ports, so that a considerable time is required. In short, from the completion of seeding for one cell tray until the next cell tray is seeded,
Since the work time for this seed adsorption had to be spared, there was a limit to increasing the transport speed of the cell trays and narrowing the interval between the cell trays to be transported, and seeding many cell trays in a short time. It was difficult to do.

[0004]

The present invention uses the following means in order to solve the above problems. That is, a plurality of suction boxes each having a suction chamber inside and a suction seeding plate having a plurality of suction seeding openings opened in the suction chamber are revolved, and each suction box is moved forward, backward, leftward, and rightward during the revolution. Swing to adsorb seeds to the suction seeding mouth,
When the suction box reaches the seeding position, the suction box is rotated so that the suction seeding port faces downward, and the sucked seeds are discharged to a seedling-raising tray that is transported to form a seeding device.

[0005]

[Operation] The suction box sown on a certain seedling raising tray has a suction box for adsorbing seeds by the rotation of the rotor until it reaches the next seeding position, while another suction box that has completed seed adsorption has been adsorbed. Since they rotate one after another to reach the seeding position, it is possible to increase the transporting speed of the trays or narrow the intervals between the trays, and to seed many trays in a short time.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the configuration of the present invention will be described with reference to the accompanying drawings. 1 is an overall side view of the seeding plant, FIG. 2 is a side view of the seeding device C, FIG. 3 is a front view of the same, FIG. 4 is an internal side view of the suction box 1, FIG. 5 is a plan view of the same, and FIG. 6 is a suction box. 1
Perspective view showing the state of the switching valve 18 during the suction action of
Similarly, FIG. 7 is a perspective view at the time of reversal during suction action, and FIG.
Is a perspective view of the seeding action, FIG. 9 is a side view of the irrigation and pressure squeezing apparatus B, FIG. 10 is a side view of the squeezing and irrigation apparatus B ′, and FIG. 11 is a front view of the same.

The configuration of the sowing plant will be described with reference to FIG. A carrier (for example, a flat belt or a roller that rotationally drives a roller) on which a cell tray T having cells formed in a grid pattern is placed and carried is arranged on the carrier F. In the upper direction, the soil filling device A, the irrigating / compressing device B, the seeding device C, the soil covering device D in the transport direction,
A watering device E is provided, and each cell portion of the cell tray T transported by the transportation device F is first filled with soil by the soil filling device A, and then by the watering / compressing device B. Simultaneously with irrigation, a recess for seeding is formed on the surface of the soil filled in each cell, and then a seeding hole is formed in the seeding hole on the soil surface of each cell by the seeding device C. The seeds sown in each cell part in D are covered with soil and irrigated with an irrigation device E, and the cell tray T in which the seeding is completed is transported by a transport device F.
It is carried out from the end part of. In addition, soil filling device A
A limit switch is provided in the vicinity of the water-suppressing device B, the sowing device C, and the soil covering device D. When the conveyed cell tray T presses against the switch, the switch is turned on and Stop the cell tray T at the position,
Further, immediately after that, the cell tray T, which is conveyed, is stopped from being conveyed to that position, and when the work in each device is completed, the conveyance is restarted to carry out to the next step. That is, in the seeding device C, one cell tray T that has been conveyed to the seeding position immediately below the seed tray C is pressed against the limit switch LS to stop, and is waiting for seeding, and when seeding is completed, It is carried out to the next soil covering device D.

Next, the structure of the seeding device C will be described. The seeding device C is a device that has a plurality of suction boxes 1 for adsorbing seeds to a suction seeding port, and sequentially conveys the suction boxes 1 onto the cell tray T for seeding. First, the transport structure of the suction box 1 in the seeding device C will be described with reference to FIGS. 2 to 5. The vertical frames 6L and 6R are erected on both sides of the transfer device F that transfers the cell tray T in the direction of the arrow X in FIG. 1 (hereinafter, the front direction of the arrow is the front). The rotation shaft 4a is rotatably provided laterally on the inner side of the compatible frames 6L and 6R, and the ring support frames 4b and 4b are radially projected from the rotation shaft 4a.
Ring support frames 4b, 4b ... Rotating rings 4L, 4R are fixed to the tips. A sprocket 4c is fixed to the rotary shaft 4a outside the vertical frame 6L, and the sprocket 4a is output from the output sprocket 27a of the reduction gear case 27 for inputting the driving force of the carry motor M1.
The chain 26 is wound around c, and the rotary rings 4L and 4R
Is driven in the direction of the arrow Y in FIG.
Further, supporting frames 7a, 7b, 7c are provided in front of and behind and above the vertical frame 6L, and swinging rollers 11a, 11b, 11c projecting from a supporting arm 2 described later are provided at the tips of the respective supporting frames 7. The bent guide rails 8a, 8b, 8c for nipping and guiding are
As shown in a side view 2 in FIG. 2, it is fixed along the outside of the rotary rings 4L and 4R. Further, below the lowermost position of the rotary rings 4L and 4R, supporting frames 14L and 14R are horizontally projected from the vertical frames 6L and 6R, and the lowermost position of the seeding at the lowermost position is provided at the tips of the supporting frames 14L and 14R. The swing stop rail 15L so as to sandwich and guide the shaft portion 2b, which will be described later, of the support arm 2 that holds the suction box 1 at the position (c).
・ 15R is fixed.

Between the rotating rings 4L and 4R, suspension shafts 5 and 5 for suspending a plurality of suction boxes 1.1 and so on are provided side by side. A suspension portion 5a, which is a spherical bearing, is fixedly provided in the central portion. As shown in FIGS. 4 and 5, the suction box 1 is supported by a support arm 2, and a tip 2a of the support arm 2 has a spherical shape, which is a spherical bearing of each of the suspension shafts 5. The support arm 2 is fitted in the portion 5a, and the supporting arm 2 can be tilted in all directions with the hanging portion 5a as a fulcrum. Further, the support arm 2 has a tip portion 2a.
The shaft portion 2b is further hung down and extended forward and backward to form a portal-shaped portion 2c having a portal shape in a side view. On the rear lower side of the portal-shaped portion 2c,
A bearing portion 2d is provided to pivotally support the rotary shaft 1e of the suction box 1, and a reversing motor M2 is fixedly provided on the front side, and an output shaft 16 of the reversing motor M2 is provided so as to project inward. The output shaft 16 is fitted and fixed in the rotary shaft 1f of the suction box 1. In this way, the suction box 1 is fixedly supported with respect to the support arm 2 except when the reversing motor M2 is driven. That is, the suspension shaft 5
The suction box 1 suspended by the unit swings integrally with the support arm 2 except when the reversing motor M2 is driven. Further, reversing switches S1 and S2, which are driving switches of the reversing motor M2, are provided so as to project from the front and rear lower ends of the gate-shaped portion 2c, and either of the reversing switches S1 and S2 is rotated upward. Then, the reversing motor M2 is configured to be driven, and the input of the switch causes the output shaft 16 of the reversing motor M2 to make a half rotation, so that the suction box 1 with respect to the support arm 2 is rotated. Turns half a turn and turns upside down.

In the support arm 2 that supports the suction box 1 as described above, the roller arms 9a and 9c are projected from the upper front and rear ends of the gate-shaped portion 2c, and the roller arms 9a and 9c are oscillated through the rotating portions 10a and 10c. The moving rollers 11a and 11c are attached, a roller arm 9b is provided in front of the shaft portion 2b, and the swinging roller 11b is attached via a rotating portion 10b. The rotating portions 10a, 10b, 10c are rotatable with respect to the roller arms 9a, 9b, 9c. Therefore, as shown in FIG.
1b and 11c are rotatable with respect to the roller arms 9a, 9b, and 9c, whereby the rocking rollers 11a, 11b, and 11c are moved to the rocking guide rails 8a and 8b.
In the state of being sandwiched between a, 8b and 8c, it becomes possible to convey the rocking guide rails 8 following the bending.

As described above, the support arm 2 for holding the suction box 1 is hung on each of the suspension shafts 5, and the transport motor M1 is carried out.
When the rotary rings 4L and 4R are rotated in the direction of the arrow Y in FIG.
The front swing roller 11a of the suction box 1 conveyed from the seeding position (c), which is the lowest position, is guided into the rear swing guide rail 8a. Then, due to the shape of the rear swing guide rail 8a bent vertically and horizontally, the support arm 2 and the suction box 1 are transported while swinging back and forth and left and right as the rotating rings 4L and 4R rotate.
When the front swinging roller 11a passes through the rear swinging guide rail 8a, next, the upper swinging roller 11b is moved.
Is guided inside the upper swing guide rail 8b, and similarly the support arm 2 and the suction box 1 are transported while swinging, and the upper swing roller 11b is moved by the upper swing guide rail 8b.
After passing b, the rear swing roller 11c is guided into the front swing guide rail 8c, and while being swung, the support arm 2 and the suction box 1 are conveyed.
The seeding position (c) is reached. In this way, each suction box 1
However, it is rocked back and forth and left and right during one rotation conveyance by the rotating rings 4L and 4R. In the vicinity of the seeding position (c), the shaft portion 2b of the support arm 2 is clamped by the swing stop rails 15L and 15R, so that the support arm 2 does not swing, and thus the suction box 1 Also, the suction seeding ports 1c, 1c, ...
It is positioned on each cell of the cell tray T which is stopped at.

The structure of the suction box 1 will be described with reference to FIGS. 4 to 8. As described above, the suction box 1 is integrally held by the support arm 2 so as to be reversed by driving the reversing motor M2. The suction box 1 is formed by combining the opening of the box body 1a with a flat suction seeding plate 1b, and the suction seeding plate 1b has a cell tray conveyed on a conveying device F. Suction seeding ports 1c, 1c ... Are opened in a grid pattern so as to seed each cell portion of T. Further, a seed hopper 3 is projectingly provided on one end (right end in this embodiment) on the suction seeding plate 1b,
The seed hopper 3 has a rectangular shape in a front cross-sectional view and a part above the suction seeding plate 1b is opened to form an opening 3a. When the suction seeding plate 1b is directed upward, the seed hopper 3 is opened. The seeds are allowed to flow out from the portion 3a onto the suction seeding plate 1b. On the contrary, when the suction box 1 is turned upside down and the suction seeding plate 1b is directed downward, the lower part of the opening 3a becomes a gutter shape, and the seed in the seed hopper 3 flows out from the opening 3a. There is no.

On the other hand, the inside of the box body 1a is a suction chamber 1d, and a blower case 1h is fixed to the outside of the bottom surface of the box body 1a (on the side opposite the suction seeding plate 1b). A blower 17 is fixedly provided at the bottom of the blower case 1h, and the intake hose 17 is flexible from the blower 17.
a and an exhaust hose 17b are extended, and the tips of the intake hose 17a and the exhaust hose 17b are fixed to the intake port 18a and the exhaust port 18b of the switching valve 18, respectively. On the other hand, from the vent 1g formed at the bottom of the box body 1a,
The ventilation pipe 20 is provided so as to project into the blower case 1h,
The ventilation pipe 20 is fixed to a ventilation port 19a of a slide plate 19 arranged in the blower case 1h. The slide plate 19 has openings 19b.
9c is opened, and normally, as shown in FIG. 6, the switching valve 18 is pulled forward by the urging force of the spring 21 connected from the front inner surface of the blower case 1h, and the intake port 18a is opened. The slide plate 19 is fitted to the vent hole 19a, the exhaust port 18b is fitted to the opening portion 19b, the intake hose 17a of the blower 17 is communicated with the vent pipe 20, and the air in the suction chamber 1d is As a result, the air pressure in the atmosphere is sucked from the suction seeding ports 1c, 1c ... By sucking air from the suction seeding port 1c, seeds are adsorbed to the suction seeding port 1c. On the other hand, air is exhausted from the exhaust hose 17b through the opening 17b, and an air hole 1i is formed on the side surface of the blower case 1h, and the opening 19 is opened through the air hole 1i.
The exhaust gas from b is discharged into the atmosphere.

A seeding lever L is provided on the switching valve 18 so as to project. The switching valve 18, which is normally biased forward by a spring 21, rotates rearward by turning the seeding lever L forward. When rotated, as shown in FIG. 8, the intake port 18a is now in the opening 19c of the slide plate 19,
The exhaust ports 18b are attached to the ventilation ports 19a, respectively. As a result, the ventilation pipe 20 and the exhaust hose 17b communicate with each other, so that the air in the suction chamber 1d is pressurized and the pressurized air is ejected from the suction seeding ports 1c, 1c. The jetted air releases the seeds adsorbed to the suction seeding port 1c and sows the seeds. Air in the atmosphere is sucked into the blower case 1h through the air holes 1i of the blower case 1h, and the intake hose 1 is opened from the opening 19b.
It is sucked into the blower 17 via 7a.

In the suction chamber 1d,
At the bottom of the box body 1a so as to cover the ventilation port 1g,
A table-shaped vibrator fixing frame 22 is fixedly provided, and openings provided on the side surface and the upper surface of the vibrator fixing frame 22 are covered with a wire net 23 so as to allow air to pass therethrough. Dust and dirt are prevented from entering the trachea 20. Then, a vibrator 24 is vertically installed on the upper part of the vibrator fixing frame 22, and a rubber material or the like is attached to the cushioning material fixing parts 22a, 22a ... Projected on the upper part of the vibrator fixing frame 22. The cushioning materials 25 are fixed, and the upper end of the cushioning material 25 is in contact with the suction seeding plate 1b. With this configuration, the vibration generated by driving the vibrator 24 is transmitted to the suction seeding plate 1b via the vibrator fixing frame 22 and the cushioning material 25, and the seeds on the suction seeding plate 1b are vibrated. Thus, the seed adsorption to the suction seeding ports 1c, 1c ... Is promoted.

The drive of the vibrator 24 and the blower 17 is turned on / off by a switch provided in each suction box 1, and the switch is turned on before the start of a series of sowing operations. It should be noted that a switch that can turn on / off the blower 17 and the vibrator 24 of the entire suction box 1 at once may be provided at one place.

While the suction box 1 is constructed as described above, in the rotary transport path of the suction box 1, as shown in FIG.
The suction reversal position (a) is set below the rear swing guide rail 6a, the seeding reversal position (b) is set below the front swing guide rail 6c, and the seeding position (c) is set at the lowest position, At the suction reversal position (a), a pusher 12a is erected from the carrier F so that the rear reversing switch S1 of the suction box 1 is pressed, while at the sowing reversal position (b). The pusher 12b is erected from the carrying device F so as to push the front reversing switch S2. As described above, the reversing switches S1 and S2 are the pushers 12a and 1
By pushing each 2b and rotating upward, the reversing motor M2 is driven and the suction box 1 is reversed.
At the time of the inversion, it is necessary to invert the seed hopper 3 side downward so that the seed in the seed hopper 3 does not flow out from the opening 3a. Therefore, the rotation of the inversion motor M2 by the output of the inversion switches S1 and S2. The directions are opposite to each other.

Then, at the seeding position (c), it is pushed from the vertical frame 6L so as to push against the seeding lever L protruding from the blower case 1h of the suction box 1 with the suction seeding plate 1b being turned down. As shown in FIG. 8, when the contactor 13 is projectingly provided and the seeding lever L is pressed against the pusher 13 and pivoted rearward, the switching valve 18 pivots forward and the suction seeding is performed. Air is discharged from 1c and 1c.

In the seeding device C configured as described above, the suction and seeding action of the suction box 1 will be described. First, when the suction box 1 leaves the seeding position (c) by the rotational drive of the rotary rings 4L and 4R, the seeding lever L that has been rotated at the seeding position (c) returns to its original position, and the switching valve 18 , Fig. 7
In the state shown in, the suction seeding ports 1c, 1c ...
Air suction is performed. Next, the suction box 1 conveyed upward
However, when the suction reversal position (a) is reached, the switch S1 presses the pusher 12a and rotates upward, and the reversing motor M
When turned on, the seed hopper 3 is turned upside down while the suction seeding plate 1b is directed upward. The switching valve 18 is in the state shown in FIG. 6, and the suction seeding ports 1c, 1c, ...
・ In, air suction is maintained. The front swing roller 11a is guided by the rear swing guide rail 8a, the upper swing roller 11b is further guided by the upper swing guide rail 8b, and the front swing guide rail 8c is further guided.
The rear swinging roller 11c is guided to and the suction box 1 swings, so that the seeds flowing out from the opening 3a of the seed hopper 3 onto the suction seeding plate 1b are sucked and seeded 1c.
・ 1c ... Adsorbed on top. Eventually, when the front swing guide rail 8c is passed, the suction box 1 reaches the seeding inversion position (b), and the inversion switch S2 is pressed by the pusher 12b.
And turn upward, the reversing motor M2 is turned on.
Then, the suction box 1 is inverted while the seed hopper 3 is directed downward, and the suction seeding plate 1b is placed downward. The switching valve 18 is in the state shown in FIG. 8, and the suction action is maintained. Then, the shaft portion 2b of the support arm 2 causes the swing stop rail 15 to move.
When it is guided by being sandwiched by L · 15R and reaches the seeding position (c), the seeding lever L is pressed against the pusher 13 and rotated rearward, so that the switching valve 18 is moved as shown in FIG. 9. The air is blown out from the suction seeding ports 1c, 1c ... By the air blowing, and the air is blown on the soil in each cell of the cell tray T stopped on the transporting device F at the seeding position (c). The seeds are then released and sown.

Regarding the transport timing of the cell tray T in the transport device F and the transport timing of the suction box 1, when the cell tray T is stopped at the seeding position (c) in the seeding device C, the seeding position (c) is set. The suction box 1 must be reached, and if the cell tray T is not present at the seeding position (c), the seeding lever L is pressed against the presser 13 to perform seeding without the cell tray T. Will end up.
Therefore, the suction box 1 is placed at the seeding position (c) only when the cell tray T is stopped by pressing the limit switch LS.
And the limit switch LS is not turned on, and therefore the cell tray T is not in the seeding position, when the suction box 1 reaches the seeding position (c), that is, in the pusher 13. Before the sowing lever L is pressed, the drive of the rotary rings 4L and 4R (the drive of the transport motor M1) is stopped, and the suction box 1 is placed in front of the sowing position, and the seeds are still adsorbed to the suction seeding port 1c. Stop in the state. Then, the cell tray T reaches the seeding position and the limit switch LS
When is turned on and the cell tray T is stopped at the seeding position, the driving of the rotary rings 4L and 4R is restarted, the suction box 1 reaches the seeding position, and seeding is performed. It should be noted that, after the seeding, the cell tray T starts to be conveyed after a fixed time.

Then, between the rotary rings 4L and 4R,
Since a plurality of suction boxes 1.1 ... Are suspended, one suction box 1 is finished being seeded and conveyed by the rotary rings 4L and 4R, and then reaches the seeding position (c). By the time, different suction boxes 1 reach the seeding position one after another, so even if the cell tray T is transported on the transport device F one after another,
The cell tray T can be seeded smoothly without stagnation.

Next, the irrigation and pressure suppression device B disclosed in FIG.
Will be described. Usually, in a sowing plant, an irrigation device and a pressure suppressor are arranged between the soil filling device A and the seeding device C, and the irrigation device performs irrigation from above the cell tray T that has been filled with soil, and further A squeezing device is used to perforate a recess for seeding on the surface of the soil in the part. In many cases, the compression device has a shape in which a compression roller provided with a compression tool, which is a protrusion for forming the seeding hole, is rotated. However, in the case of the seeding plant of this embodiment, the seeding device C is
Since it is a device for rotating and transporting a plurality of suction boxes 1 and requires an installation space at the front and the rear, an installation in which only two types of devices, a irrigation device and a pressure suppression device, are provided between the soil filling device A and the seeding device C. There is no space, and in order to dispose both devices, the front-rear length of the transport device F must be made longer than in the conventional case. This is not preferable when the installation space of the seeding plant is limited.

Therefore, it has been made possible to pierce the potted soil surface by irrigation so that the installation space for either of the two devices can be eliminated. First, in the case of FIG.
The position of the compression roller 28 of the conventional compression device is set to the compression device 2
8a, 28a ... are set at an upper position so that they float slightly above the soil surface in the cell of the pot on the tray T (that is, so that the direct pressure suppressor 28a does not suppress the soil surface). .. are configured as irrigation nozzles, and the crushing roller 28 is rotatable in the direction of the arrow, while the irrigation pipe 29 is fixed in the crushing roller 28, and It is configured to vertically irrigate, and irrigation is injected from the irrigation pipe 29 into the nozzle of the pressure suppressor 28a that has reached the lowermost part as the pressure roller 28 rotates, and the cells of the cell tray T located therebelow are injected. A irrigation and pressure suppression device B is constructed so as to make a hole in the surface of the soil by the pressure of water blown out from the nozzle and simultaneously perform irrigation and sowing. In this case, the irrigation pipe 29 can be embedded in the compression roller 28, and the installation space for the conventional irrigation device becomes unnecessary.

Alternatively, as shown in FIGS. 10 and 11, the conventional irrigation system has a irrigation pipe 3 which is lateral to the cell tray T.
Although a plurality of irrigation nozzles were provided at the lower end of 0 to irrigate the cell tray T being conveyed, the intervals of the irrigation nozzles were made equal to the cell intervals of one row of the cell tray T, When irrigation from the irrigation nozzle is performed only when the target cell of irrigation comes directly under the irrigation nozzle, and the irrigation water pressure is slightly increased, the irrigation from the irrigation nozzle irrigates the soil in each pot. It is also possible to make holes for seeding on the surface. That is, the irrigation device B ′ is capable of forming a hole for seeding, and does not require a space for installing a conventional pressure reducing device, which is a great space advantage. In addition, it is also possible to adjust the depth of the seeding holes by adjusting the water pressure from the nozzles in combination with the case of FIG.

[0025]

As described above, the present invention has the following effects. That is, in the seeding device configured to swing the suction box to adsorb the seed to the suction sowing port, invert the suction box, and sow the seed adsorbed to the transported seedling raising tray, a plurality of the suction boxes are revolved. Since it is configured to swing to adsorb seeds during the revolution, even if the transport pitch of the seedling raising tray is accelerated, it is possible to send the suction boxes after completion of seed adsorption to the sowing position one after another for seeding. The work efficiency is greatly improved.

[Brief description of drawings]

FIG. 1 is an overall perspective view of a seeding plant.

FIG. 2 is a side view of a seeding device C.

FIG. 3 is a front view of the same.

FIG. 4 is an internal side view of the suction box 1.

FIG. 5 is a plan view of the same.

FIG. 6 is a perspective view showing a state of the switching valve 18 at the time of suction action of the suction box 1.

FIG. 7 is a perspective view at the time of reversal during the suction action.

FIG. 8 is a perspective view of the same during seeding action.

FIG. 9 is a side view of the irrigation and pressure suppressor B.

FIG. 10 is a side view of a irrigation / irrigation device B ′.

FIG. 11 is a front view of the same.

[Explanation of symbols]

 C Seeding device F Conveying device T Cell tray M1 Conveying motor M2 Reversing motor S1 ・ S2 Reversing switch L Seeding lever 1 Suction box 1a Box body 1b Suction seeding plate 1c Suction seeding port 1d Suction chamber 2 Support arm 3 Seed hopper 4L / 4R Rotating ring 5 Suspended shaft 8a, 8b, 8c Swing guide rail 11a, 11b, 11c Swing roller 12a, 12b Pusher 13 Pusher 17 Blower 17a Intake hose 17b Exhaust hose 18 Switching valve 18a Intake port 18b Exhaust port 19 Slide plate 20 Vent pipe

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Atsushio Yasuda 1-32, Chayacho, Kita-ku, Osaka, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Kiyoshi Uchida 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka Issue Yanmar Agricultural Machinery Co., Ltd. (72) Inventor Hiromi Togawa 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka Prefecture Yanmar Agri-mechanical Co., Ltd. (72) Inventor Tadayuki Shinko 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka No. 32 Yanmar Agricultural Machinery Co., Ltd. (72) Kensuke Omae 1-32, Chaya-cho, Kita-ku, Osaka-shi, Osaka Prefecture Yanmar Agricultural Machinery Co., Ltd. (72) Inventor, Kiyotaka Yoshida No. 1 Chaya-cho, Kita-ku, Osaka-shi, Osaka No. 32 Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A plurality of suction boxes having a suction chamber inside and a suction seeding plate having a plurality of suction seeding openings opened in the suction chamber are revolved, and each suction box is rotated during the revolution. Swing back and forth and left and right to adsorb the seeds to the suction seeding mouth, when the suction box reaches the seeding position, rotate the suction sowing mouth downward, and discharge the adsorbed seeds to the seedling raising tray to be transported. A seeding device characterized by sowing.