JP2588941Y2 - Suction type seeder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a suction-type sowing machine, more specifically, a method in which seeds are sucked by suction into the suction-seeding port of a suction box having a plurality of suction-seeding ports, and are moved to a seeding position above a tray. To a suction-type seeder.

[0002]

2. Description of the Related Art Conventionally, this kind of seeding and seeding apparatus is composed of a substrate having a mounting surface on which a tray can be mounted and a suction chamber, as previously filed by the present applicant in Japanese Patent Application No. 3-107919. A suction box having a plurality of suction seeding ports opened to the suction chamber, and the suction box is vertically movable with respect to the base via a hollow supporting member, and is rotatably supported. On the other hand, a suction machine is provided, and the suction machine and the suction chamber are communicated with each other through the inside of the support member, and the suction machine is driven to exert a suction action on the suction seeding port. Then, at the time of the seeding operation, the suction box is moved upward with respect to the base to mount the tray on the mounting surface of the base, and the suction box is positioned at the suction position where the suction seeding port is directed upward. Turn to do
In such a state, a suction operation is performed in which the seed to be supplied onto the suction sowing surface having the suction sowing port is adsorbed to the suction sowing port by the suction action, and thereafter, the suction sowing port of the suction box is directed downward. The suction box is moved to the seeding position above the tray, and the suction chamber is opened to the atmosphere by opening a closing plate that opens and closes an air opening hole provided in the suction chamber. Then, a sowing operation is performed in which the seeds adsorbed on the suction sowing port are sowed in each pot stored in the tray.

[0003]

By the way, when the seeds adsorbed on the suction sowing port are dropped by opening the closing plate and opening the suction chamber to the atmosphere during the sowing operation as described above, Even when the suction chamber was opened to the atmosphere, the seeds adsorbed to the suction seeding port sometimes did not easily fall.

Therefore, it is conceivable to eliminate the suction effect by stopping the suction device in order to encourage the seeds to fall. In this case, the opening operation of the closing plate for opening the closing plate every time the sowing operation is performed, and the suction device And a stop operation of the suction device for stopping the operation is required, which causes a problem that the operation in the seeding operation becomes complicated.

[0005] In addition, when the seeds are caught or biting by the suction sowing port during the adsorption operation, even if the closing plate is opened and the suction machine is stopped at the time of the sowing operation, the seeds are kept under the suction sowing operation. There was also a problem that it could not be dropped if it was caught in the mouth.

[0006] An object of the present invention is to provide a suction-type sowing machine capable of satisfactorily dropping adsorbed seeds during sowing operation and improving sowing efficiency.

[0007]

In order to achieve the above object, seeds are adsorbed on the base on which the tray is mounted and on one surface of the box body where the inside is at a negative pressure by the negative pressure inside the box body. A sowing plate having a plurality of suction sowing ports, and a suction box that is supported so that the seeding plate can be turned upside down and turned upside down, and a shock is applied to the suction box to adsorb the suction sowing port. In a suction-type seeder having impact means for dropping seeds, the suction box can be moved up and down above the substrate, and can be inverted at a position above the base, and the impact means is A shaker attached to the other surface of the box body and a base end attached to the other surface of the box body, and a tip portion provided with an impact transmission plate contacting the seeding plate. I do.

[0008]

According to the above construction, the suction box can be raised above the base and turned upside down. Therefore, even when it is not possible to secure a sufficiently large space on the side of the base.
The suction box can be reliably inverted. Further, when performing a seeding operation of dropping the seed adsorbed to the suction sowing port at the suction position at the sowing position from the suction sowing port at the sowing position, driving the vibrator, the vibration generated by the vibrator, the vibration of the box body The transmission can be reliably performed from the impact transmission plate having the base end attached to the other surface to the seeding plate. Therefore, the seeding plate can be evenly vibrated, and the seeds can be dropped well even when the seeds are caught or biting into the suction sowing port. In addition, since the shock transmission plate provided between the seeding plate provided on one side of the box body and the other surface also serves as a reinforcing plate, the durability of the box body can be increased without providing a special reinforcing plate. Also, since the inside of the box body can be used as a rectifying plate when the inside of the box body is sucked by using the shock transmission plate, it is possible to perform uniform suction without providing a special rectifying plate. Therefore, it is possible to improve the adsorption of the seeds to the respective suction sowing ports.

When the seeding operation is performed without stopping the suction machine 5, since the suction machine 5 is driven, even if the suction chamber 21 is opened to the atmosphere, suction is performed at the suction seeding port 22a. The remaining action makes it difficult for the seeds to fall from the suction sowing port 22a as compared with the case where the suction machine 5 is stopped to give an impact, but the impact applied to the suction sowing plate 22 from the impact means 7 Thus, the seeds adsorbed on the suction sowing port 22a can be dropped well. In the present invention, the stopping of the suction machine 5 is preferable, but not always necessary.

[0010]

1 to 4 show an embodiment of a suction-type seeder according to the present invention. The structure of the seeder is schematically described. The seeder has a mounting surface 10 on which a tray T can be mounted. A base 1, a suction seeding plate (suction seeding surface) 2 having a suction chamber 21 and a plurality of suction seeding ports 22 a opened to the suction chamber 21.
A suction box 2 provided with a base 2 and the suction box 2 can be moved up and down with respect to the substrate 1, and can be turned between a seeding position in which the suction seeding port 22a points downward and a suction position in which the suction seeding port 22a points upward. , A suction device 5, and a suction passage A communicating the suction device 5 with the suction chamber 21.

As shown in FIG. 2, the base 1 has a mounting surface 10 on which a housing box B housing a tray T for holding a plurality of pots P for growing seedlings in rows and columns can be mounted. And a front receiver 11 for receiving the front end of the suction box 2 is provided on the front side of the mounting surface 10 and a rear side of the mounting surface 10 is provided on the front side of the mounting surface 10. A guide pin 12 for guiding the storage box B containing the tray T to a predetermined position on the mounting surface 10 and an elastic rubber for receiving a seed tank 23 provided at the rear end of the suction box 2 described later. Rear receivers 13, 13 are provided. The base 1 has a suction device 5 such as a blower inside the rear wall 1a.
The b and 1b are provided with exhaust ports 14 and 14 and grips 15 and 15 used when carrying the base 1. FIG.
Reference numeral 16 denotes a main switch provided on the side wall of the base 1, and the switch 16 is turned on and off by operating the switch 16.

As shown in FIG. 2, the support member 3 comprises a support portion main body 30 and a swing portion 40 supported by the body 30 so as to be vertically swingable. Reference numeral 30 denotes a substantially L-shaped hollow pipe 31 extending rearward from the rear wall 1a of the base 1 and rising upward.
And an elbow pipe 32 having a pair of opposed support pieces 33, 33 extending toward the front side. The base of the pipe 31 is attached to the rear wall 1a of the base 1 and the pipe 31 Is connected to a suction port of the suction machine 5 through a through hole formed in the rear wall 1a.

The elbow tube 32 has one end communicating with the pipe 31 and the other end having the support pieces 33 and 33.
A connection port portion 34 is provided between the base portions of the support pieces 33 and extends toward the front side. 3
5, 35 are provided respectively.

On the other hand, the swinging part 40 is provided with the support piece 3.
A first swinging body 41 having a U-shaped cross section supported to be able to swing up and down on the support shafts 35, 35 of the third and 33, and is detachably connected to the distal end of the first swinging body 41, and the inside is hollow. A fork-shaped second rocking member 42 is connected to the fork-shaped forked portion 42a and a cylindrical shaft portion 42b extending rearward at a widthwise middle portion of the forked portion 42a. Are formed integrally so as to form a closed air passage 40a,
Each free end of the forked portion 42a is provided with the air passage 40a.
And cylindrical shafts 43, 43 having a hollow portion 43a opened to the suction chamber 21 of the suction box 2 are protrudingly provided, and the cylindrical shafts 43, 43 rotatably support the suction box 2. On the other hand, the cylindrical shaft portion 42b is detachably fitted to the first swinging body 41, and the cylindrical shaft portion 42b
Is connected to a connection port 34 of the elbow tube 32 by a flexible hose 44 such as a bellows hose.

In this case, as shown in FIG. 2, a support tube 41a for rotatably supporting the cylindrical shaft portion 42b is provided at the tip of the first swinging member 41, and the cylindrical portion 42b is attached to the support tube 41a. The first rocking body 41 is supported while being freely rotatable.
A pair of left and right springs 45, 45 are interposed between each side wall portion of the base member and a flange portion 42c protruding from the outer periphery of the base portion of the cylindrical shaft portion 42b.
The two cylindrical shafts 43, 43 provided in 2a are urged so as to be parallel to the mounting surface 10 described above. On the other hand, the second rocking body 42 is configured to be able to be buffered by rotating the second rocking body 42 against the springs 45, or to slightly change the angle of the suction box 2 with respect to the mounting surface 10.

Thus, the pipe 31 and the elbow pipe 32
, The flexible hose 44, the air passage 40 a between the cylindrical shaft portion 42 b and the forked portion 42 a, and the hollow portion 43 a of the cylindrical shafts 43, 43, and suction from the suction device 5 to the suction chamber 21. The passage A is formed.

As shown in FIGS. 1 to 3, the suction box 2 has a box body (hereinafter referred to as a box-shaped body) 20 having one side opened.
And a seeding plate (hereinafter referred to as a suction seeding plate) 22 attached to the open side of the box-shaped main body 20, inside which a suction chamber 21 is formed and the suction seeding plate 22 is formed.
A plurality of suction sowing ports 22a opened in the suction chamber 21 are formed, and seeds supplied from the seed tank 23 described later onto the suction sowing plate 22 are sucked by the suction machine 5 in each suction sowing. It is made to adsorb to mouth 22a. Note that the suction sowing plate 22 can be replaced with a suction sowing plate 22 having an arbitrary suction sowing port 22a according to the type and size of the seed to be sowed.
It is detachably attached to.

A center of the suction sowing plate 22 is recessed, and a seed tank 23 extending substantially the entire length of the box-shaped main body 20 in the width direction of the box body 20 via an inclined surface portion 22b is provided at a rear portion thereof.
The seed tank 23 includes a front wall 23a, both side walls 23b, 23b, a rear wall 23c, an upper wall 23d, and a bottom wall 23e, as shown in FIG.
Only the upper part is opened toward the suction seeding plate 22 side,
At the seeding position shown in FIG. 2, the opening 23f is configured to be higher.

Therefore, when the suction box 2 is maintained at the suction position as shown in FIG. 1, the seeds in the seed tank 23 are transferred from the opening 23f of the front wall 23a to the upper surface of the suction seeding plate 22 via the inclined surface 22b. It will flow down to
The suction box 2 is turned from the suction position in the direction of the solid line arrow in FIG.
When the seeds are inverted so as to be located at the seeding position facing downward, the seeds other than the seeds sucked into the suction sowing port 22a are again stored in the seed tank 23 from the opening 23f through the inclined surface 22b. become.

The seed tank 2 in the suction box 2
A handle 6 protruding forward is provided on the front wall 20c facing the mounting side of the suction box 3. The handle 6 facilitates the turning of the suction box 2, and the handle 6 is gripped to grip the suction box 2.
Is rotated in the direction of the arrow indicated by the imaginary line in FIG. 2 to rotate the suction sowing plate 22 to the suction position in which the suction sowing plate 22 is directed upward as shown in FIG. 1, and the handle 6 interferes with the forked portion 42a. By making it possible to prevent the rotation of the suction box 2 beyond the suction position, utilizing the interference of the handle 6 with the forked portion 42a,
While preventing the suction box 2 from rotating too much more than the suction position, the seeds flowing down to the suction sowing plate 22 are prevented from falling from the suction sowing plate 22, that is, the suction box 2 to the outside,
The suction box 2 shown in FIG. 1 can be maintained at the suction position.

The upper wall 20a of the box-shaped main body 20 is provided near the side walls 20b and 20b and the cylindrical shaft 4
A pair of open air holes 24,
24, and an operation unit 2 for closing the open holes 24, 24
The closing plates 25, 5 having a 5a are swingably supported via hinges 26, 26, and the closing plates 25, 25 are attached by springs 27, 27 so that the opening holes 24, 24 are normally closed. The opening holes 24, 24 are opened by lifting the closing plates 25, 25, the suction chamber 21 is opened to the atmosphere, and the suction seeding port 22 of the suction seeding plate 22 is opened.
a pot portion P in which the seeds adsorbed on a are arranged on the tray T
It is configured so that it can be dropped and seeded.

In FIG. 1, 28, 28 are the suction boxes 2
A pair of grips provided on the upper wall 20a of the suction box 2 near the outside of the closing plates 25, 25 for swinging up and down, and 46, 46 are rear ends of the first rocking body 41. A spring interposed between the section and the pipe 31 is a balancing spring for reducing the vertical swing of the suction box 2.

In the embodiment shown in the drawings, the suction box 2 is constructed as described above,
The impact means is capable of ascending and descending above the substrate 1 and inverting at a position above the substrate 1 and applying an impact to the suction box 2 to drop the seeds adsorbed to the suction sowing port 22a. A vibrator (hereinafter referred to as a solenoid) 7 using a solenoid attached to the other surface of the box body 20 and a base end are attached to the other surface of the box body 20, and a tip portion is the suction. An impact transmission plate 29a that comes into contact with the seeding plate 22 is provided.

That is, the solenoid 7, which mainly generates an electric shock, is connected to the upper wall 20a of the box body 20.
The suction unit is attached to the center of the box 20 and extends in the longitudinal direction of the box body 20 on the upper wall 20a as shown in FIG. 3, and the free end side in the width direction is detachably attached to the box body 20. An impact transmission plate 29a that comes into contact with the seeding plate 22 and transmits the impact of the solenoid 7 to the suction seeding plate 22 is attached.

The impact transmission plate 29a is connected to the upper wall 20a.
A fixed portion fixed to the upper wall 20a along a plane, and a pair of rising portions rising from both sides in the width direction of the fixing portion.
And serves as a reinforcing plate of the box-shaped main body 20 and also functions as a rectifying plate that enables uniform suction when sucking from the cylindrical shafts 43, 43. . The impact generated from the solenoid 7 is transmitted to the suction seeding plate 22 via the impact transmission plate 29a.

In the drawing, reference numeral 29b denotes a reinforcing plate, and reference numeral 80 denotes a connection cable to a power supply provided in the suction passage A which communicates the suction device 5 with the chamber 21. For example, when the foot switch 71 operated by foot is operated, the solenoid 7 is operated.
Thus, an impact can be applied to the suction-seeding plate 22 from above.

Next, the operation of the suction sowing machine configured as described above will be described.

At the adsorption position, the seeds are sucked and sowed at the inlet 22a.
A sowing operation including a sowing operation of sucking a seed and a sowing operation of dropping a seed from a suction sowing port 22a at a sowing position is performed. First, the main switch 16 is turned on to drive the suction machine 5, and A suction action is given to each suction sowing port 22a in the suction sowing plate 22 of the suction box 2 through a suction passage A extending from the suction machine 5 to the suction chamber 21.

Next, the suction box 2 is swung upward with respect to the base 1 through the swinging section 40 as shown by the imaginary line in FIG. 1, and the base 1 is placed under this state. The accommodation box B accommodating the tray T is placed at a predetermined position on the surface 10 via the guide pin 11.

Then, the suction box 2 is rotated in the upward swinging position in the direction of the arrow indicated by the imaginary line in FIG. 2 so as to be turned to the suction position where the suction seeding port 22a is directed upward as shown in FIG. to go into. Then, the seeds in the seed tank 23 flow down from the opening 23f to the upper surface of the suction sowing plate 22 via the inclined surface portion 22b, and the suction sowing plate 22 is sucked by the suction sowing ports 22a of the suction sowing plate 22. The seeds that have flowed down to the upper surface of each of the suction sowing ports 22a are respectively adsorbed.

After the suction operation is completed, the suction box 2 is turned in the solid line direction in FIG. 1 so that the seeds that have not been sucked by the suction sowing port 22a during the suction operation are stored in the seed tank 23 as described above. Will be contained again.

After that, the suction box 2 is swung downward to move the suction box 2 to a position directly above the tray T. First, the front end of the suction box 2 is moved to the front receiver 11. After that, the rear seed tank 23 of the suction box 2 is moved to the rear receiver 1.
3, 13, and said closure plate 25,
25 is lifted up by its operation parts 25a, 25a to open the air release holes 24, 24, and the suction chamber 2
1 is released to the atmosphere, and the foot switch 71 is operated by continuing the driving of the suction machine 5 without stopping the suction machine 5, whereby the solenoid is attached to the suction seeding surface 22 by this operation. 7 to the impact transmission plate 2
The impact is applied a required number of times via 9a, and the impact forces the seed to drop from the suction / seeding port 22.

As described above, the air release holes 24, 24
In a state where is opened, by applying an impact to the suction sowing surface 22, it is possible to promote the fall of the seeds adsorbed to the suction sowing port 22a, and also, the seeds are caught by the suction sowing port 22a during adsorption, Even if it is bitten, it can be dropped by the impact, so that the efficiency of the seeding operation can be improved, and the operation of starting and stopping the suction machine 5 is not required.
The complexity of the operation of the seeding operation can be reduced.

In the above description, the suction chamber 21 is opened to the atmosphere while the suction machine 5 is driven.
In this state, an impact is applied to the suction seeding plate 22, but the suction machine 5 can be stopped. In this case, it is necessary to stop the suction machine 5 every time the sowing operation is performed. However, compared to a case where the suction chamber 21 is opened to the atmosphere without stopping the suction machine 5, the fall of the adsorbed seeds can be reduced. It can be effectively promoted.

In the above description, all of the holes 2 are open to the atmosphere.
4 and 24 were opened, but the solenoid 7 was not opened.
Can be dropped only by the impact of In this case, it is preferable that the suction device 5 be stopped, but it is also possible to drop the suction device 5 without stopping it depending on the impact force.

In the above embodiment, the solenoid 7
Is connected to the power supply in the suction passage A, the connection cable 80 is not exposed to the outside, and the connection cable 80 can be prevented from being twisted when the suction box 2 is turned. In addition, the appearance can be improved in combination with the arrangement of the solenoid 7 inside the suction box 2.

Further, since the switch 71 is a foot switch so that a shock can be applied to the suction seeding plate 22 by a stepping operation, for example, the switch 71 is operated by foot while operating the suction box 2 by hand. Can be operated, so that the seeding operation can be easily performed, but the switch 71 may be a push button switch.
In addition, when the foot switch or the push button switch is used as described above, the solenoid 7 is operated each time the switch is operated, and one impact is applied. It operates several times.

Further, the impact means is constituted by the solenoid 7, but a vibrator having a large amplitude such as a vibrator may be used. In this case, the switch 71
With this operation, a continuous impact can be applied from the vibrator.

In the above embodiment, the support member 3
Is formed by a hollow member, and the suction passage A for communicating the suction machine 5 and the suction chamber 21 is formed in the support member 3. However, the suction is performed without forming the support member 3 by the hollow member. Machine 5 and suction chamber 21
It is needless to say that a structure may be used in which the and are communicated via the suction hose.

[0040]

As described above, according to the present invention, the suction box can be raised above the base and turned upside down, so that a sufficient space cannot be secured on the side of the base. Also, the suction box can be reliably inverted. Moreover, the vibration generated by the vibrator mounted on the other surface of the box body can be reliably transmitted from the shock transmission plate having the base end mounted on the other surface of the box body to the seeding plate. , The seeding plate can be evenly vibrated, and even when the seeds are caught or digging into the suction sowing port, the seeds can be dropped well. The impact transmission plate provided between the seeding plate provided on one side and the other side also serves as a reinforcing plate, so that the durability of the box body can be increased without providing a special reinforcing plate, and Since it is possible to use the transmission plate to also serve as a rectifying plate when the inside of the box body is sucked, it is possible to perform uniform suction without providing a special rectifying plate, and it is possible to perform each seed Good adsorption to the suction seeding port It is.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a suction box used in a suction-type seeder of the present invention.

FIG. 2 is a longitudinal sectional side view showing a sowing state of the suction sowing machine.

FIG. 3 is a plan view showing a sowing state of the suction sowing machine.

FIG. 4 is a rear view showing a sowing state of the suction sowing machine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Suction box 3 Support member 5 Suction machine 7 Impact means (solenoid) 10 Mounting surface 21 Suction chamber 22 Suction seeding surface (suction seeding plate) 22a Suction seeding port A Suction passage T Tray

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model 5-13114 (JP, U) Japanese Utility Model 4-16512 (JP, U) (58) Fields surveyed (Int. Cl. ⁶ , DB name) A01C 7/04

Claims (1)

(57) [Scope of request for utility model registration] 1. A and group member tray is placed, the internal negative pressure
The seeds are sucked by the negative pressure inside the box body
A seeding plate having a plurality of suction seeding ports to be attached is provided.
Can be inverted so that the seeding plate is facing upward and downward.
Suction box supported by Noh and shock
Impact hand to drop the seeds adsorbed on the suction sowing port
In a suction-type seeder having a step, the suction box includes:
It is possible to move up and down above the base, and at a position above it
Inversion is possible, and the impact means is provided on the box body.
The shaker and base end attached to the other surface are
Attached to the surface, the tip of which contacts the seeding plate
A suction-type seeder comprising a shock transmission plate .