JP2588942Y2 - 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 has a suction base having a mounting surface on which a tray can be mounted, a suction box having a suction chamber and having a plurality of suction and seeding ports opened to the suction chamber. The suction box is vertically movable with respect to the base via a support member, and is rotatably supported and provided with a suction machine, and the suction machine and the suction chamber are communicated via a suction hose. During the seeding operation, the suction box is moved upward with respect to the base to place 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. The seeds to be dropped on the suction seeding surface in such a state are adsorbed to the suction seeding port by the suction effect of the suction machine,
After that, the suction box is inverted so that the suction seeding port is at a seeding position in which the suction seeding port is directed downward, the suction box is moved to the seeding position above the tray, and the suction chamber is opened to the atmosphere. The seed adsorbed on the suction sowing port is sown in each pot of the tray.

[0003]

However, in the conventional suction sowing machine described above, after the seeds are adsorbed on the suction box, the suction sowing port is inverted so that the suction sowing port is directed downward, and the substrate is placed on the substrate. It is moved to the seeding position above the tray on which it is placed, and is seeded.The suction box supports the support member so as to be able to swing via a swinging member, and supports the swinging member so that it can turn. Therefore, when the suction box is moved to the seeding position by swinging and rolling clearance or rattling in the turning portion of the support portion or the suction box of the swinging member, the sample is placed on the mounting surface described above. There has been a problem that a misregistration occurs with respect to the tray, and the seeding cannot be correctly performed at the center position of each pot on the tray.

An object of the present invention is to provide a suction type sowing machine which can easily position a suction box at a seeding position with respect to a tray placed on a mounting surface of a substrate and can sow seeds correctly in each pot of the tray. The point is to provide.

[0005]

Means for Solving the Problems In order to achieve the above object, in the first invention, a substrate having a mounting surface on which a tray is mounted, and a plurality of suctions, on which seeds are adsorbed by a negative pressure inside, are provided. In a suction-type seeder having a seeding port, and having a suction box that is supported so that the upward and downward of the suction seeding port is possible, the suction box can move up and down above the base, Inversion is possible at the upper position,
One side of the base has a guide groove that opens upward, and a positioning member that determines a lateral position with respect to the mounting surface of the suction box is provided, and when the suction box descends, An engaging body capable of engaging with the guide groove is attached to the suction box.

[0006]

[0007] In the second invention, the suction box is provided with a gripping body that can protrude outward from the suction seeding port and can be gripped, and this is mounted so as to change its protruding height. It is characterized by the following.

[0008]

With the above arrangement, when performing the seeding operation, the suction box 2 is moved upward with respect to the base 1 to place the tray T on the mounting surface 10 of the base 1, while the suction box 2 is moved upward. After the suction box 2 is turned to the suction position where the suction sowing port 22a is directed upward with respect to the substrate 1, and the seed is sucked into the sowing port 22a, the suction box 2 is moved to the suction sowing port 22a.
a is inverted to a seeding position in which a is directed downward, and is moved to a position above the tray T placed on the placing surface 10. At this time, the suction box 2 is moved by the positioning member 13 to the placing surface 10. The position, that is, the position with respect to the tray T is determined.

Therefore, when the suction box 2 is moved down, the suction box 2 is displaced due to backlash caused by swinging and turning clearance in the turning portion and the supporting portion for vertically moving the suction box 2. Even if it occurs, the suction box 2 can be positioned with respect to the tray T mounted on the mounting surface 10 by the positioning member 13, and the positional deviation with respect to the tray T can be eliminated, and the center of each pot in the tray T can be eliminated. It can be seeded correctly in the location.

Further, the positioning member has a guide groove which opens upward, and an engaging body which can be engaged with the guide groove is provided in the suction box. It is automatically positioned by guidance,
Workability can be improved.

[0011] In the second invention, the gripping body, which can protrude outward from the suction seeding port and can be gripped, is mounted so that its protruding height can be changed. By changing the mounting position, the height at which the suction box is positioned with respect to the mounting surface can be adjusted to a predetermined height according to the size of the tray, particularly the height. Thereby, it is possible to prevent the height of the suction box from being increased and the seeding position from being shifted.

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a suction type seeding machine according to an embodiment of the present invention.
A suction box 2 provided with a suction seeding plate (suction seeding surface) 22 having a suction chamber 21 and a plurality of suction seeding ports 22a opened in the suction chamber 21; 1. A support member 3 that can move up and down with respect to 1 and rotatably supports 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 machine 5, the suction machine 5 and the suction chamber 2
1 and a suction passage A communicating with the suction passage A.

As shown in FIG. 2, the base 1 has a mounting surface 10 on its upper surface on which a tray T formed by arranging a plurality of pots P for growing seedlings vertically and horizontally can be mounted. As shown in FIGS. 1 and 2, legs 17 for setting the mounting surface 10 to a predetermined ground height, that is, a height suitable for work as shown in FIGS. At the same time, horizontally long tray mounting tables 18 and 19 having substantially the same height as the mounting surface 10 are provided so as to be fixed or foldable. Among the legs 17, one of the right and left legs 17 is provided with a caster 17a, and the other is provided with an adjuster 17b made of a screw. Further, on the upper surface of the base 1, behind the mounting surface 10, a tray positioning body 12 for positioning the tray T at a predetermined position in front, rear, left and right with respect to the mounting surface 10 and enabling mounting is provided. In addition to the above, the rear wall 1a of the base body 1 receives an engaging body (hereinafter referred to as a guide body) 6 provided at the rear end side of the suction box 2 and guides the suction box 2 to a predetermined position for positioning. A member 13 is provided, and the mounting surface 10
Outer left and right side walls 20 of the suction box 2
The left and right receiving bodies 11, 11 for receiving grip bodies 28, 28 described later provided in b, 20b are provided.

The receiving bodies 11, 11 are mainly made of an elastic material such as a rubber disc, and when the suction box 2 is turned to the seeding position and moved down, the left and right side walls 2 of the suction box 2 are moved.
0b, 20b can be received by the gripping bodies 28, 28. The receiving surfaces 11, 11 of the gripping bodies 28, 28 can be received by the receiving surfaces 11,
, That is, the height of the tray T can be determined.

It is to be noted that the suction box 2 can be positioned in the left-right direction by making the opposing side surfaces of the receiving bodies 11 and 11 inclined surfaces, but this is not particularly necessary since the left-right direction is restricted. In addition, the positioning member 13 shown in the drawing,
Guide groove 13 opening upward as shown in FIGS.
a, the upper opening of the guide groove 13a is expanded upward, but the lower part of the opening is straight, and the bottom of the guide groove 13a is The tray T is positioned at the front and rear positions corresponding to the mounting position of the tray T positioned by the positioning body 12. Therefore, when the guide body 6 engaged with the guide groove 13a of the positioning member 13 and guided to the bottom side stops at or near the bottom thereof, that is, the grip bodies 28, 2
When the right and left receiving members 8 are received by the left and right receiving members 11, the front and rear positions of the suction box 2 are regulated with respect to the mounting position of the tray T mounted on the mounting surface 10, and the positioning can be performed. .

The base 1 has a suction device 5 such as a blower inside the rear wall 1a, and has exhaust ports 14, 14 on both side walls 1b, 1b of the base 1.
An operation switch 16 for turning on and off the suction machine 5 is provided on the front wall 1c. The support member 3
The main body 30 and the main body 30 as shown in FIG.
And a swinging portion 40 which is supported so as to be able to swing up and down.
A substantially L-shaped hollow pipe 31 extending rearward from the rear and rising upward, and an elbow pipe 32 connected to an upper end of the pipe 31 and having a pair of opposed support pieces 33, 33 extending forward. The base of the pipe 31 is attached to the rear wall 1a of the base 1, and the pipe 31 is connected to the suction port of the suction machine 5 through a through hole formed in the rear wall 1a. . Also, the elbow tube 32 is
One end thereof communicates with the pipe 31, and the other end is provided with a connection port 34 located between the bases of the support pieces 33, 33 and extending toward the front side. The parts are provided with support shafts 35 for supporting the swing part 40 so as to be able to swing vertically. On the other hand, the swing part 40 is provided with support shafts 35, 35 of the support pieces 33, 33.
Swinging member 4 having a U-shaped cross section supported so as to be able to swing vertically.
1 and a bifurcated second oscillating body 42 detachably connected to the distal end of the first oscillating body 41.
2 is a flat U-shaped bifurcated portion 42a having a hollow inside,
A cylindrical shaft portion 42b extending rearward in the widthwise intermediate portion of the forked portion 42a is integrally connected and formed so as to form a continuous air passage 40a, and at each free end of the forked portion 42a, Cylindrical shafts 43, 43 having a hollow portion 43a communicating with the air passage 40a and opening to the suction chamber 21 of the suction box 2 are provided in a protruding manner.
The suction box 2 is rotatably supported, and the cylindrical shaft portion 42b is removably fitted to the first rocking body 41, and a connection port between the rear end of the cylindrical shaft portion 42b and the elbow tube 32. The portion 34 is communicatively connected with 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.

Further, as shown in FIGS. 2 and 3, the suction box 2 has a box-shaped main body 20 opened to the bottom side, and a suction seeding plate 22 detachably attached to the open side of the box-shaped main body 20. A suction chamber 21 is formed inside the box-shaped main body 20 and the suction / seeding plate 22, and a plurality of suction / seeding ports 22 a opened in the suction chamber 21 are formed in the suction / seeding plate 22. doing. The center of the suction sowing plate 22 is recessed, and a seed tank 23 is connected to the rear side of the suction sowing plate 22 so as to extend over substantially the entire width of the box body 20 via an inclined surface 22b. As shown in FIG. 3, 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 23.
e, only the upper part of the front wall 23a is opened toward the suction seeding plate 22 side, and the opening 23f is positioned higher at the seeding position shown in FIG. And
The suction box 2 is rotatably supported by the cylindrical shafts 43 of the swinging portion 40 on both side walls 20b, 20b, and a rear wall located on the mounting side of the seed tank 23 in the suction box 2. The guide body 6 protrudes rearward and is also provided with a handle.

The guide body 6 can be used as a handle for turning the suction box 2 when performing the turning operation. The suction box 2 is rotated to a seeding position where the suction seeding port 22a is directed downward. When it is moved, it is engaged with the inner surface of the guide groove 13a of the positioning member 13 and guided to the bottom side, and the engagement of the guide body 6 with the guide groove 13a causes the front-rear position of the suction box 2 to be The tray T is positioned with respect to the mounting position. The guide body 6 shown in the drawing is composed of a rod-like member having a pair of mounting plates 7 mounted near both sides in the length direction, and a protection cylinder 8 made of synthetic resin is provided on both sides to be fitted in the guide grooves 13a. Installed.

The positioning member 13 is provided on the rear wall 1a of the base 1, and the guide body 6 is connected to the rear wall 20c of the suction box 2.
However, the positioning member 13 may be provided on the front side of the base 1, and the guide body 6 may be provided on the front wall of the suction box 2, or may be provided on one of the left and right sides.

When the guide member 6 having the positioning member 13 provided on the front side of the base 1 is provided on the front wall of the suction box 2, the guide member 6 is moved by the arrow indicated by a virtual line in FIG. When the suction seeding plate 22 is rotated to the suction position in which the suction seeding plate 22 is directed upward as shown in FIG. 4, the guide body 6 interferes with the bifurcated portion 42a and the seeding position of the suction box 2 is higher than the seeding position. It is preferred that turning can be prevented. In this way, the suction box 2 can be maintained at the suction position by utilizing the interference of the guide body 6 with the forked portion 42a. By maintaining the suction position, excessive rotation of the suction box 2 can be prevented. Gone, said seed tank 2
Although the seeds in 3 flow down from the opening 23f of the front wall 23a to the upper surface of the suction sowing plate 22 through the inclined surface 22b, they can be prevented from falling off.

The upper wall 20a of the box body 20 has a pair of open air holes 2 near the left and right side walls 20b, 20b and near the inner opening of the cylindrical shafts 43,43.
4 and 24, and swingably supported via hinges 26 and 26, the closing plates 25 and 25 having operating portions 25 a for closing the opening holes 24 and 24.
Are normally urged by the springs 27, 27 to close the open holes 24, 24, and by lifting the closing plates 25, 25, the open holes 24, 24 are opened to open the suction chamber 21 to the atmosphere. The seeds adsorbed on the suction sowing port 22a of the suction sowing plate 22 are released and can be sowed.

The left and right side walls 20 of the box body 20
b and 20b, a pair of gripping bodies 28 and 28 are attached to the upper wall 20a in opposite directions as shown in FIG.
It is attached so that the seeding position protrudes downward from the suction seeding plate 22.

The grips 28, 28 are mounted so that the vertical height thereof, that is, the protruding height from the suction seeding plate 22, can be adjusted. That is, the one shown in FIG. 2 is provided with a mounting plate 50 having a plurality of mounting holes 50a in the up-down direction at the base of the grip body 28.
0a is selected and mounted so that the protrusion height can be adjusted by tightening with the mounting screw 51. The gripping bodies 28, 28 are provided on the upper surface of the
The gripping bodies 28, 28 are engaged with the left and right receiving bodies 11, 11 provided on both left and right sides of the gripping body.
The height position of the suction box 2 at the seeding position with respect to the mounting surface 10 is determined by the reception by the left and right receiving bodies 11, 11, and the suction height is adjusted by adjusting the protrusion height of the grip bodies 28, 28. The height at which the box 2 is positioned with respect to the mounting surface 10 can be adjusted.

Therefore, the positioning height can be adjusted to a predetermined height in accordance with the size, particularly the height, of the tray T, and the height of the suction / seeding port 22a with respect to the seeding surface of the tray T increases, so that It can be prevented from shifting.

In the figure, reference numerals 15 and 15 denote a pair of grips provided near the outside of the closing plates 25 and 25 on the upper wall 20a of the suction box 2 to swing the suction box 2 up and down. Inside the box-shaped main body 20, the upper wall 20a is fixed to the upper wall 20a and abuts against the suction seeding plate 22.
And a reinforcing plate 29 having a U-shaped cross section for reinforcing the suction seeding plate 22
a from the longitudinally intermediate portion of the reinforcing plate 29a to the reinforcing plate 2
L-shaped reinforcing plates 29b, 29b extending in a direction orthogonal to 9a and fixed to the inner surface of the upper wall are provided, and these reinforcing plates 29a, 29b deform the suction seeding plate 22 and the box-shaped main body 20 at the time of suction. To prevent the seeding
Of the seeds into the suction / seeding port 22a of the above.

Further, 46, 46 are the first oscillating bodies 41
With a spring interposed between the rear end of the
It is a balance spring for reducing the vertical swing of the suction box 2.

Reference numeral 52 denotes a first stopper fixed to the cylindrical shaft 43, and reference numeral 53 denotes a contact piece to the stopper 52 fixed to the side walls 20b, 20b of the box body 20 in the suction box 2. And the suction box 2 as shown in FIGS.
(See FIG. 2 and FIG. 3). Reference numeral 54 denotes a second stopper made of a rubber disk or the like provided on an inner surface of the forked portion 42a facing the suction box 2;
When the suction box 2 is located at the suction position shown in FIG.
Excessive rotation of the suction box 2 at the suction position due to the contact of the gripping bodies 28, that is, excessive rotation in the clockwise direction in FIG. 4 can be restricted to prevent the seeds flowing out of the seed tank 23 from falling off. Like that.

Further, as shown in FIG. 7, a suction force adjustment for opening the air passage 40a to the atmosphere is provided at an extended base portion of the cylindrical shaft portion 42b of the second rocking member 42, that is, at a central portion of the forked portion 42a. An adjusting plate 48 that opens the hole 47 and adjusts the opening degree of the adjusting hole 47 to adjust the suction force.
Are rotatably supported via predetermined friction. Further, the box-shaped main body 20 into which the cylindrical shaft 42 protrudes.
As shown in FIG. 8, a filter 56 is detachably attached to the inner surfaces of the side walls 20b, 20b.

That is, the one shown in FIG.
b, 20b, around a protruding end of the cylindrical shaft 43, a receiving seat 57 is provided, and outside the receiving seat 57, a filter retainer 58 composed of a plurality of leaf springs is attached. The filter body 56 is formed by integrally forming or attaching a filter body 56a to a cylindrical frame body 56b having a shoulder.
8 is locked and pressed against the receiving seat 57 for attachment.

In the above-described embodiment, the rocking section 40 is composed of the first rocking body 41 and the second rocking body 42 and the second rocking body 42 is connected so as to be rotatable.
Needless to say, the first oscillator 41 and the second oscillator 42 may be integrally formed. Further, the second rocking body 42
In addition to supporting the suction box 2 in a U-shape and supporting the suction box 2 in a cantilever manner, for example, the suction box 2 may be configured in an L shape to support the suction box 2 in a cantilever manner.

As shown in FIG. 3, the tray T is held in a storage box B such that the upper portion of the tray T projects from the storage box B.

The suction sowing plate 22 is provided with an optional suction sowing port 22a according to the type and size of the seed to be sowed.
It is detachably attached to the bottom of the box-shaped main body 20 so that it can be replaced with a suction-seeding plate 22 having a shape. The mounting means includes fitting of the suction-seeding plate 22 to the bottom of the box-shaped main body 20. It may be a fitting structure, or may be detachably attached by a fixing tool such as a bolt.

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

First, when performing the seeding operation, the legs 17 are erected, the tray tables 18 and 19 are expanded and held horizontally, and one of the tray tables 18 and 19 is
In this state, the operation switch 16 is turned on to drive the suction machine 5 and the pipe 31 and the elbow pipe 3
2. Flexible hose 44, air passage 40 between cylindrical shaft portion 42b and forked portion 42a, hollow portions 43a, 4 of cylindrical shafts 43, 43
3a and each suction seeding port 2 in the suction seeding plate 22 of the suction box 2 through the suction passage A reaching the suction chamber 21.
2a is given a suction action.

Next, the suction box 2 is swung upward with respect to the base 1 through the swinging portion 40 as shown by the imaginary line in FIG. 3, and the suction box 2 is stacked on the tray table 18 under such a state. Then, one of the unseeded trays T prepared in advance is taken out and placed on a placement surface 10 of the base 1 at a predetermined position via a tray positioning body 12.

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. 3 so that the suction seeding plate 22 is positioned on the upper surface side as shown in FIG. Then, since the opening 23f of the seed tank 23 moves to the lower position, the seeds in the seed tank 23 are sucked from the opening 23f through the inclined surface portion 22b by the suction sowing plate 2.
2, and the seeds located near each suction sowing port 22a by the suction action at each suction sowing port 22a of the suction sowing plate 22 are adsorbed to each suction sowing port 22a.

When performing such a suction operation, the suction box 2
Since the guide body 6 serving also as a handle is provided on the rear wall 20c, the suction box 2 can be easily turned to the suction position by gripping the guide body 6 and turning the suction box 2. It is also possible to quickly suck the seeds by rotating the suction box 2 while holding the gripping bodies 28, 28 and shaking.

After the end of the suction, the suction box 2 is turned in the direction of the solid line in FIG.
Is inverted so as to be located at the seeding position pointing downward. Also in this case, the suction box 2 can be turned from the suction position to the seeding position by using the guide body 6, whereby the inversion from the suction position to the seeding position can be easily performed. . In addition, only the seeds sucked by the suction sowing port 22a remain on the suction sowing plate 22 due to the reversal of the suction box 2, and the seeds that are not sucked by the suction sowing port 22a pass through the inclined surface portion 22b. It is stored again in the seed tank 23 through the opening 23f.

After that, when the suction box 2 is swung downward to move the suction box 2 to a position directly above the tray T, first, the guide member 6 provided on the rear wall 20c of the suction box 2 is required. The positioning member 13 provided on the rear side of the base 1
The guide body 6 is guided to the bottom side of the positioning member 13 when the guide body 6 is moved downward while engaging with the guide groove 13a. With this guide, the front / rear position of the suction box 2 is automatically regulated and positioned. The gripping body provided on the left and right side walls 20b, 20b of the suction box 2 with the front / rear position restricted as described above. 2
Left and right receivers 8 provided on left and right sides of base 1
The height of the guide body 6 is determined by the engagement of the guide members 1 and 11, and the positioning of the front and rear positions is also performed by the regulation of the guide member 6 by the positioning member 13.

Accordingly, the suction box 2 is provided with the tray T positioned through the tray positioning members 12 and 12.
Will be positioned at an appropriate position. And
The operation switch 16 of the suction device 5 is turned off to stop suction by the suction device 5, and the closing plates 25, 2 are closed.
5 is lifted by the operation parts 25a, 25a to open the atmosphere opening holes 24, 24, and the suction chamber 21
By exposing to the atmosphere, the seeds adsorbed to each suction sowing port 22a of the suction sowing plate 22 can be sowed in each pot P of the tray T.

As described above, in the seeding position, the front and rear positions of the suction box 2 are regulated by the engagement of the guide body 6 with the positioning member 13, so that the suction box 2 is correctly positioned on the tray T mounted on the mounting surface 10. Positioning can be performed, and the height of the gripping bodies 28, 28 with respect to the mounting surface 10 is also determined by the engagement with the receiving bodies 11, 11. You can. In the above embodiment, the supporting member 3 is formed of a hollow member, and the supporting member 3 is formed with the suction passage A for communicating the suction machine 5 with the suction chamber 21. Needless to say, the structure may be such that the suction device 5 and the suction chamber 21 communicate with each other via a suction hose, without forming the member 3 by a hollow member.

[0044]

As described above, according to the first invention, when the suction box is lowered toward the mounting surface in a state where the suction seeding port is turned upside down, the guide that opens upward in the positioning member. The engaging body engages with the groove, and the position with respect to the mounting surface, that is, the position with respect to the tray, can be automatically positioned. Even in the case where the displacement occurs, the displacement with respect to the tray can be eliminated, the seed can be correctly seeded at the center position of each pot on the tray, and the workability can be improved.

[0045]

According to the second aspect of the present invention, the gripping body, which can protrude outward from the suction seeding port and can be gripped, is mounted so as to change its protruding height. By changing the position, the height at which the suction box is positioned with respect to the mounting surface can be adjusted to a predetermined height according to the size of the tray, particularly the height, and by adjusting this height It is possible to prevent the height of the suction box from increasing and the seeding position from being shifted.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a suction seeder according to the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a partially omitted cross-sectional view showing a sowing state in the suction sowing machine shown in FIGS.

FIG. 4 is an explanatory diagram showing an adsorption state of the suction seeder.

FIG. 5 is a partially omitted plan view showing a sowing state of the suction sowing machine.

FIG. 6 is a partially omitted rear view showing a sowing state of the suction sowing machine.

FIG. 7 is an explanatory view of an embodiment in which a suction force adjusting hole and an adjusting plate are provided.

FIG. 8 is a partially enlarged cross-sectional view showing an example in which a filter is provided inside a cylindrical shaft that protrudes into a suction box.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Substrate 2 Suction box 3 Support member 5 Suction machine 6 Guide body 10 Placement surface 11 Receiver 13 Positioning member 13a Guide groove 21 Suction chamber 22a Suction seeding port T tray

────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Minoru Morimoto 200 Asakura, Yoka-cho, Yabu-gun, Hyogo Prefecture Inside Yoka Tekko Co., Ltd. 72) Inventor Isao Furuya 200 Asakura, Yoka-cho, Yabu-gun, Hyogo Prefecture Inside Yoka Iron Works Co., Ltd. (56) References Japanese Utility Model 5-13114 (JP, U) Japanese Utility Model 4-16512 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) A01C 7/04

Claims (2)

(57) [Scope of request for utility model registration] 1. A base having a mounting surface on which a tray is mounted , and a plurality of suction sowing ports on which seeds are adsorbed by a negative pressure therein , wherein the suction sowing port has Upward and downward
In a suction-type seeder having a suction box supported so that the suction box can move up and down above the base.
It is possible to invert at the upper position,
On one side of the base, there is a guide groove that opens upward.
And determine the horizontal position of the suction box with respect to the mounting surface.
Positioning member is provided, and when the suction box descends
And an engaging body capable of engaging with the guide groove is provided on the suction box.
A suction type sowing machine characterized by being attached . 2. The suction box is located outside the suction seeding port.
A gripping body that can be gripped by protruding
The suction-type seeder according to claim 1, further comprising: a projection which is mounted so as to change its protruding height .