JPH08322326A - Sowing device for raising seedling - Google Patents

Abstract

PURPOSE: To efficiently sow seeds of flower, especially fine seeds such as their coated seeds into a paper pot or a connected pot made of a plastic. CONSTITUTION: This device has a flat upper face and a rectangle fixed plate 1 having plural large holes 12 having sufficient diameter, frames 2 placed around the fixed plate 1 and plural small holes 32 capable of sliding and placed on upper face of the fixed plate 1 and passable of the seeds are formed by corresponding to the plural large holes 12 on the fixed plate 1, and a thin slide plate 3 having a thickness of 0.4-2 times of a diameter of the small holes 32.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a thin slide plate having a plurality of small holes through which fine seeds can pass and having a thickness of 0.4 to 2 times the diameter of the small holes. The present invention relates to a seedling apparatus for raising seedlings, which is capable of efficiently sowing small seeds such as the above-mentioned seeds, in particular, small seeds such as coated seeds, in a paper pot or a plastic connection pot.

[0002]

2. Description of the Related Art A conventional seeding apparatus for raising seedlings (Shokai 59-2
1820), a tapered portion T is formed on top of a plurality of small holes K formed in a slide plate S having substantially the same thickness as a fixed plate F formed with a plurality of large holes L as shown in FIG. It promoted the fall of the work and increased the work efficiency.

[0003]

In the above-mentioned conventional seeding apparatus for raising seedlings, the taper portion T is provided above the small hole K of the slide plate S.
However, since the relatively large vegetable seeds are sown and the thickness of the slide plate S is almost the same as that of the fixed plate F, it is possible to use flower seeds, especially coated seeds thereof. There is a problem that it is not possible to sow such small seeds efficiently into a paper pot or a plastic connection pot.

Therefore, the present inventor has focused on the technical idea of the present invention to make the slide plate as thin as 0.4 to 2 times the diameter of the small holes through which seeds can pass, and further research and development. Again, the present invention has been achieved which achieves the purpose of efficiently sowing flower seeds, especially micro-seeds such as their coated seeds, in paper pots or plastic connecting pots.

[0005]

The seeding apparatus for raising seedlings of the present invention (the first invention according to claim 1) has a flat upper surface,
A plurality of fixing plates having a plurality of large-diameter large holes formed therein, a frame body arranged around the fixing plates, and a plurality of fixing plates slidably arranged on the upper surface so that seeds can pass therethrough. The small holes are formed so as to correspond to the plurality of large holes of the fixing plate, and are composed of a thin slide plate having a thickness of 0.4 to 2 times the diameter of the small holes.

In the seedling raising seeding device of the present invention (the second invention according to claim 2), in the first invention, the small diameter of the small holes in the slide plate is in the range of 1.0 to 2.5 mm. When set, the thickness of the slide plate is 1.0
To 2.0 mm. That is, in the second aspect of the present invention, the relationship between the particle size of the coated seed and the hole diameter and thickness of the slide plate is illustrated in Table 1.

[Table 1]

In the seedling raising seeding device of the present invention (the third invention according to claim 3), in the first invention, a thick portion is formed on the upper surface of the peripheral portion of the slide plate.

The seedling raising seeding device of the present invention (the fourth invention according to claim 4) is the seedling raising seeding device according to the third invention, wherein a rib is provided on the upper surface of the central portion of the slide plate.

In the seedling raising seeding device of the present invention (the fifth invention according to claim 5), in the first invention, the slide plate is made of a low friction material.

In the seedling raising seeding device of the present invention (the sixth invention according to claim 6), in the first invention, the thick part made of a low friction material is formed on the lower surface of the peripheral part of the slide plate. At the same time, a groove is formed in a portion of the fixed plate corresponding to the thick portion so as to configure a guide mechanism for the slide plate.

[0011]

The seeding apparatus for raising seedlings according to the first aspect of the present invention, which has the above-described structure, has a frame body arranged around the fixed plate having a flat upper surface, and the diameter of the small hole is 0.4 on the upper surface. When the thin slide plate having a thickness of two to two times is slid, the seeds supplied to the upper surface of the slide plate have the plurality of small holes formed corresponding to the plurality of large holes of the fixed plate. In addition to passing through the holes, it also passes through a plurality of large holes of sufficient diameter formed in the fixing plate.

In the seedling raising seeding device of the second aspect of the present invention having the above-mentioned structure, a frame body is arranged around the seed plate, and 1.0 to 2.0 mm is provided on the upper surface of the fixing plate having a flat upper surface.
When the thin slide plate having a thickness set within the range is slid, seeds supplied to the upper surface of the slide plate are formed corresponding to the plurality of large holes of the fixed plate,
It passes through the plurality of small holes set to have a hole diameter in the range of 1.0 to 2.5 mm and also passes through the plurality of large holes of sufficient diameter formed in the fixing plate.

In the seedling raising seeding device of the third invention having the above-mentioned structure, a frame body is provided around the seedling growing device, and the diameter of the small hole is 0.4 on the upper surface of the fixing plate having a flat upper surface. When the slide plate, which is thin and has twice the thickness and has a thick portion formed on the upper surface of the peripheral portion, is slid, the seeds supplied to the upper surface of the slide plate are the plurality of the fixed plates. Of the plurality of small holes formed corresponding to the large holes, and also of the plurality of large holes of sufficient diameter formed in the fixing plate.

In the seedling raising seeding device of the fourth aspect of the present invention having the above-mentioned structure, the diameter of the small hole is 0.4 on the upper surface of the fixing plate having a frame and a flat upper surface. To a double thickness, a thick portion is formed on the upper surface of the peripheral portion and a slide plate having a rib on the upper surface of the central portion of the slide plate is slid to slide the slide plate. The seeds supplied to the upper surface of the fixed plate pass through the plurality of small holes formed corresponding to the plurality of large holes of the fixed plate, and a plurality of large holes of sufficient diameter formed in the fixed plate. Is to pass through.

In the seedling raising seeding device of the fifth aspect of the present invention having the above structure, a frame body is arranged around the seedling raising device, and the diameter of the small hole is 0.4 on the upper surface of the fixing plate having a flat upper surface. Or sliding the thin slide plate having a thickness twice or more and made of a low friction material,
Seeds supplied to the upper surface of the slide plate pass through the plurality of small holes formed corresponding to the plurality of large holes of the fixed plate, and a plurality of sufficient diameters formed on the fixed plate. It passes through the large hole.

In the seedling raising seeding device of the sixth aspect of the present invention having the above-mentioned structure, a frame is disposed around the seedling raising device and corresponds to the upper surface of the fixed plate having a flat upper surface and the thick portion of the slide plate. On the guide mechanism constituted by the groove formed in the portion, a thin wall having a thickness of 0.4 to 2 times the diameter of the small hole and having a low friction material on the lower surface of the peripheral portion. When the slide plate forming a part is slid, the seeds supplied to the upper surface of the slide plate pass through the plurality of small holes formed corresponding to the plurality of large holes of the fixed plate, It passes through a plurality of large holes of sufficient diameter formed in the fixed plate.

[0017]

According to the seeding apparatus for raising seedlings of the first aspect of the present invention, which has the above-described action, the seed supplied by the slide of the slide plate is a thin slide plate having a predetermined thickness with respect to the diameter of the small hole. Since it passes through the plurality of small holes, it has an effect of efficiently sowing flower seeds, particularly minute seeds such as coat seeds thereof, in a paper pot or a plastic connecting pot.

In addition to the effect of the first aspect of the invention, the seeding apparatus for raising seedlings of the second aspect of the present invention, which has the above-described action, is characterized in that the seed is 1.0
To the plurality of small holes having a hole diameter within the range of 1.0 to 2.5 mm formed in the thin slide plate having a thickness within the range of 2.0 to 2.0 mm. It has the effect of sowing efficiently.

In addition to the effect of the first aspect of the invention, the seeding apparatus for raising seedlings according to the third aspect of the present invention has a thick portion formed on the upper surface of the peripheral portion of the slide plate to reinforce the slide plate. Since the flatness is increased, the slide of the slide plate can be made smooth and the seeding can be performed more efficiently.

In addition to the effects of the third aspect of the invention, the seeding apparatus for raising seedlings according to the fourth aspect of the present invention has ribs on the upper surface of the central portion of the slide plate, so that the slide plate is reinforced and the flatness is improved. Therefore, the slide of the slide plate can be made smooth and the seeding can be performed more efficiently.

In addition to the effect of the first aspect of the invention, the seedling raising seeding device of the fifth aspect of the present invention has the above-mentioned effect that the slide plate
Since it is made of a low-friction material, it has the effect of smoothing the slide of the slide plate on the upper surface of the fixed plate and further efficient seeding.

In addition to the effect of the first aspect of the invention, the seeding apparatus for raising seedlings of the sixth aspect of the present invention, which has the above-described action, is formed at a portion of the low friction material of the slide plate of the fixed plate corresponding to the thick portion. Since it slides along the guide mechanism constituted by the groove portion, the slide of the slide plate can be reliably and stably provided, and seeding can be performed more efficiently.

[0023]

Embodiments of the present invention will be described below with reference to the drawings.

(First Embodiment) The seedling raising apparatus of the first embodiment is a rectangle having a flat upper surface 11 as shown in FIGS. 1 to 4 and a plurality of large holes 12 of sufficient diameter formed therein. Fixed plate 1, a frame body 2 arranged around the fixed plate 1, and a plurality of small holes 32 slidably arranged on the upper surface 11 of the fixed plate 1 and through which seeds can pass. The small holes 3 are formed corresponding to the plurality of large holes 12 of the fixed plate 1.
And a thin slide plate 3 having a thickness of 0.4 to 2 times the diameter of 2.

As shown in FIGS. 1 to 4, the frame 2 has four colored transparent resin strips 21 to 24, which form a four-sided wall portion, bonded at both ends in the longitudinal direction. Then, facing walls 25 and 26 are formed in a square shape and are opposed to the plates 21 and 24 with an interval slightly larger than the stroke amount of the slide plate, and the rectangular opening on the upper surface is rectangular. It is configured to be closed by the plates 27 and 28.

As shown in FIGS. 1 to 4, the fixing plate 1 is made of a colorless and transparent thick rectangular plate member 10 made of resin and having a thickness of about 4 mm, and the three faces 21 to 2 of the frame body.
The grooves 220 and 230 formed on the inner surface of the No. 3 and the upper surfaces of the support members 211, 221, and 231 that are adhered to the lower portion of the inner surface are adhered to each other, and are disposed so as to penetrate the remaining one surface 24.

The fixing plate 1 is provided with 16 vertical and 16 horizontal large holes 12 having a diameter of 8 mm at regular intervals in a region of three quarters in the width direction in order to secure reinforcement and flatness. Two corners which are adhered to the upper surface of the rectangular cross-section rib 13 whose both ends are adhered to the strip-shaped plates 22 and 23 forming the frame body 2 in the lateral direction of the central lower surface and which are adhered to the plate 21 of the frame body 2. A rectangular notch 14 is formed in the portion for venting air when the slide plate 3 slides.

As shown in FIGS. 1 to 4, the slide plate 3 is formed of a colorless transparent resin rectangular plate member 30 corresponding to the fixed plate 1, and has a thickness of 1.0 to 2.0 mm. A strip-shaped thick portion 33 having a width of 20 mm and a thickness of 3 mm is set on the upper surface of four sides of the peripheral portion, which is set to 1 mm within the range.
34, 35 and 36 are formed, and a rib 37 having a rectangular cross section is disposed on the upper surface in the lateral direction of the central portion.

The slide plate 3 has 16 vertical and 16 horizontal small holes 32 formed at regular intervals in a three-quarter area in the width direction corresponding to the fixed plate 1. Pore size is 1.0
The thickness is set to 1 mm, which corresponds to a thickness of 1/4 of the thickness of the fixing plate 1 within a range of from 2.5 mm to 2.5 mm.

The slide plate 3 is inserted from a rectangular opening formed in a plate 24 constituting the wall portion of the frame body 2, and is inserted into a groove formed on the inner surface of the plates 22 and 23, The fixed plate 1 is configured to slide on the flat upper surface 11, and a rectangular vertical wall 38 is provided at one end of the fixed plate 1.
Two coil springs 39, which are coaxial with the bolts and nuts that regulate the stroke amount of the slide plate 3, are inserted between the frame 24 and the plate 24 that forms the wall portion of the frame 2, and the vertical wall is inserted. When the pushing force of the coil 38 is released, the coil spring 39 can be slid back by the urging force of the coil spring 39.

The small hole 3 formed in the slide plate 3
2 is offset from the large hole 12 of the fixed plate 1 when the coil spring 39 is returned to the original state by the urging force of the coil spring 39, the vertical wall 38 is pushed, and one end of the slide plate 3 is attached to the frame. The small hole 32 is arranged so as to coincide with the large hole 12 of the fixed plate 1, that is, the small hole 32 is located in the opening of the large hole 12 of the fixed plate 1 in a state of being in contact with the inner wall of the plate 21 of the body 2. ing.

The facing walls 25 and 2 arranged so as to face the plates 21 and 24 constituting the wall portion of the frame body 2.
A seal plate 25 is provided below the slide plate 6 so that the lower ends thereof come into contact with the thick portions 33 and 36 arranged on the upper surface of the slide plate 3.
1, 261 are fixed by a plurality of screws and prevent seeds from entering the inside.

Materials used to form the fixed plate 1 and the slide plate 3 include MMA, PVC, PC, PS and ABS.
Resin and others can be adopted.

In the seedling raising seeding device of the first embodiment having the above-mentioned structure, in the state where it is returned to the original state by the urging force of the coil spring 39, that is, the small hole 32 formed in the slide plate 3 is fixed to the fixed portion. Seeds are supplied to the upper surface of the slide plate 3 in the frame body 2 in a state of being offset from the large hole 12 of the plate 1.

In the state where seeds are supplied to the upper surface of the slide plate 3 in the frame body 2, the vertical wall 38 is pushed against the biasing force of the coil spring 39, and one end of the slide plate 3 is attached to the frame. When abutting against the inner wall of the plate 21 of the body 2, the small hole 32 of the slide plate 3 becomes the large hole 1 of the fixed plate 1.
2, that is, the small hole 32 is located in the opening of the large hole 12 of the fixed plate 1.

When the small holes 32 of the slide plate 3 are located in the openings of the large holes 12 of the fixed plate 1, the seeds supplied are the small holes 32 of the thin slide plate 3.
And passes through the opening of the large hole 12 of the thick fixing plate 1 and falls downward.

In the seedling raising seeding device of the first embodiment having the above-mentioned action, the seeds supplied by the slide of the slide plate 3 are the plurality of slide plates whose thickness is sufficiently thin with respect to the diameter of the small holes 32. Since it passes through the small holes of (1), it has an effect of sowing flower seeds, in particular, micro seeds such as coated seeds thereof, in a paper pot or a plastic connection pot.

Further, in the seedling raising seeding apparatus of the first embodiment, the seeds are set to have a hole diameter of 1.0 mm formed in the thin slide plate 3 having a thickness of 1.0 mm. Since a small amount of seeds are allowed to pass through the small holes 32, the small amount of seeds is evenly filled in the small holes 32, so that the seeding can be performed more efficiently.

Further, in the seedling raising seeding apparatus of the first embodiment, the thick portions 33 to 36 are formed on the upper surfaces of the peripheral portions of the four sides of the slide plate 3 so as to reinforce the slide plate 3 and flatness. To reduce the sliding resistance,
While smoothing the slide of the slide plate 3,
It has the effect of sowing more efficiently.

Further, in the seedling raising seeding apparatus of the first embodiment, since the rib 37 having the rectangular cross section is arranged in the lateral direction of the upper surface of the central portion of the slide plate 3, the central portion of the slide plate 3 is reinforced and flat. Since the slide plate 3
The sliding resistance of the central part of the slide plate 3 is reduced, the slide of the slide plate 3 is made smooth, and the seeding is performed more efficiently.

That is, since the seeds of flowers, in particular, micro seeds such as the coated seeds are sown, the thickness of the slide plate 3 becomes thin. Therefore, the strength and shape retention of the thin slide plate are reduced. However, the durability may be deteriorated, a waviness phenomenon (change in the local and overall clearance), malfunction of the spring means may occur, and the function may stop.

Therefore, in the first embodiment, the strip-shaped thick portions 33 to 36 are formed on the upper surfaces of the peripheral portions on the four sides of the slide plate 3, and the central portion of the slide plate 3 is formed. The rib 37 having the rectangular cross section in the lateral direction of the upper surface of the
Since the slide plate 3 is provided, the strength and shape retention of the slide plate 3 are improved, and the durability is deteriorated, the corrugation phenomenon (change in local and overall clearance) occurs, the malfunction of the spring means and the function stoppage, etc. To prevent.

When a local clearance is generated in the slide plate 3, fine seeds may enter, and in extreme cases, it may be unusable, but such a situation can be avoided.

In the seedling raising seeding device of the first embodiment, the facing walls 25 and 26 are opposed to the plates 21 and 24 with a space slightly larger than the stroke amount of the slide plate.
And the lower ends of the seal plates 251 and 261 fixed to the lower portions of the opposing walls 25 and 26 are provided with thick portions 33 and 36 provided on the upper surface of the slide plate 3.
Since it is in contact with the upper surface of the seed, it has an effect of preventing the seed from entering the inside.

Furthermore, in the seedling raising seeding apparatus of the first embodiment, the rectangular openings on the upper surface formed by the plates 21 and 24 and the facing walls 25 and 26 facing the plates 21 and 24 are formed by the rectangular plates 27 and 28. Since it is closed, it has an effect of preventing the supplied seeds from entering the inside.

Further, in the seedling raising seeding device of the first embodiment, since the fixing plate 1 and the slide plate 3 are made of a colorless transparent synthetic resin, the large holes 12 and the large holes 12 as seeding holes are formed in each pot hole of the seedling raising box. Since the small holes 32 can be easily aligned and the frame 2 is made of a colored and transparent synthetic resin, it is easy to identify and can be easily handled by anyone.

Further, in the seedling raising apparatus of the first embodiment, the small holes 3 are provided in the left quarter of the slide plate 3.
Since the non-perforated area where 2 is not formed is formed and the inclined surface is formed on one surface of the upper surface of the thick portion 34 located in this area, it is not necessary to tilt the slide plate 3 a little. The seeds gathered in the non-porous area have the effect of preventing excess seeds from falling.

Further, in the seedling raising seeding device of the first embodiment, the rib 13 having a rectangular cross section having the both ends in the lateral direction of the central lower surface of the fixed plate 1 adhered to the strip-shaped plates 22 and 23 constituting the frame body 2 is provided. It secures the reinforcement and flatness, and also achieves the effect of reducing the weight and making it easy for anyone to handle.

(Second Embodiment) As shown in FIGS. 5 and 6, the seedling raising seeding device according to the second embodiment has the slide plate 3 and thick portions 33 to 36 adhered to the slide plate.
Is made of Teflon or other low friction material, the small hole 32 has a hole diameter of 2 mm, and the slide plate has a plate thickness of 1.5 mm, which is a difference from the first embodiment.

The plates 21 and 2 constituting the frame body 2
4, the sealing plates 252, 26 fixed to the lower portions of the facing walls 25 and 26 arranged at intervals.
As shown in FIG. 5, 2 has a wedge shape by forming an inclined surface inside the lower end thereof.

Small holes 32 formed in the slide plate 3
As shown in FIGS. 5 and 6, an inclined wall is formed over the entire thickness direction of the slide plate 3, and the upper surface opening is 3 mm and the lower surface opening is a tapered hole of 2 mm. In addition,
The size and volume of the taper hole are comprehensively determined in consideration of the size of the seed, the ease of passage of the seed, the required drop amount of the seed, and the like.

In the seedling raising seeding device of the second embodiment having the above-mentioned structure, the frame 2 is arranged around the seedling raising device, and the plate thickness 1.
The hole diameter of the small hole 32 of the slide plate 3 of 5 mm is 2 m.
When the thin slide plate 3 made of a low-friction material such as Teflon is slid, the seeds supplied to the upper surface 11 of the slide plate 3 are transferred to the plurality of large holes of the fixed plate 1. It passes through the plurality of small holes 32 formed corresponding to 12 and also passes through the plurality of large holes 12 of sufficient diameter formed in the fixed plate 1.

In the seedling raising seeding device of the second embodiment having the above-mentioned action, since the slide plate 3 is made of a low friction material such as Teflon, the upper surface 1 of the fixing plate 1 is
The slide of the slide plate 3 on the slide 1 is smoothed, and the seeding is performed more efficiently.

In the seedling raising seeding apparatus of the second embodiment, the slide plate 3 has a thickness of 1.5 mm to enhance the strength and flatness of the slide plate 3 and the small holes 32 have a diameter of 2 mm. Since the small holes 32 are uniformly filled with a predetermined amount of seeds, the seeds are uniformly and evenly sown, and the efficiency is further improved.

Further, in the seedling raising seeding device of the second embodiment, since the insides of the lower ends of the seal plates 252 and 262 are formed in a wedge shape, the thickness formed by the lower ends of the seal plates 252 and 262 and Teflon. There is an effect that the seed to be used for entering is guided obliquely upward between the meat portion and the seed, and more effectively prevents the seed from entering the inside.

In the seeding apparatus for raising seedlings of the second embodiment, since the small holes 32 formed in the slide plate 3 are tapered holes, seeds can easily pass through and a predetermined amount of seeds can be dropped smoothly. There is an effect that can be made.

(Third Embodiment) As shown in FIG. 7, the seedling raising apparatus of the third embodiment has a thick wall portion 34 made of a low friction material on the lower surface of the left and right peripheral portions of the slide plate 3, Three
5 is formed, and the thick portion 34 of the fixed plate 1,
Forming groove portions 104 and 105 in a portion corresponding to 35,
The point that the guide mechanism of the slide plate 3 is configured is the difference from the first embodiment.

The seedling raising seeding device of the third embodiment having the above-mentioned structure is formed on the upper surface 11 of the fixed plate 1 at a portion corresponding to the thick portions 34 and 35 of the low friction material of the slide plate 3. On the guide mechanism formed by the groove portions 104 and 105 formed, the slide plate 3
When the slide is slid, the seeds supplied to the upper surface of the slide plate 3 pass through the plurality of small holes 32 of the slide plate 3 formed corresponding to the plurality of large holes 12 of the fixed plate 1. At the same time, it passes through a plurality of large holes 12 of sufficient diameter formed in the fixed plate 1.

The seeding apparatus for raising seedlings according to the third embodiment having the above-mentioned operation is the thick portion 3 of the low friction material of the slide plate 3.
4, 35 and the slide plate 3 along the guide mechanism constituted by the groove portions 104, 105 of the fixed plate 1.
Since the slide is performed, the slide of the slide plate 3 can be made smoother, more reliably and stably, and the seeding can be performed more efficiently.

The embodiments described above are merely examples for the purpose of explanation, and the present invention is not limited to them. Those skilled in the art will recognize from the claims, the detailed description of the invention and the description of the drawings. Modifications and additions can be made without departing from the technical idea of the present invention.

[Brief description of drawings]

FIG. 1 is a perspective view showing a device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing the device of the first embodiment.

FIG. 3 is a cross-sectional view taken along the line AA in FIG. 2 showing the device of the first embodiment.

FIG. 4 is a partial cross-sectional view showing the relationship between the frame body and the fixed plate and the slide plate in the first embodiment.

FIG. 5 is a partial cross-sectional view showing the features of the second embodiment device of the present invention.

FIG. 6 is an enlarged cross-sectional view showing a relationship between a large hole and a small hole in the second embodiment.

FIG. 7 is a partial cross-sectional view showing the features of the device of the third embodiment of the present invention.

FIG. 8 is a partial cross-sectional view showing a conventional device.

[Explanation of symbols]

 1 Fixed Plate 2 Frame 3 Slide Plate 11 Top 12 Large Hole 32 Small Hole

Claims (6)

[Claims] 1. A fixing plate having a flat upper surface, in which a plurality of large holes having a sufficient diameter are formed, a frame body disposed around the fixing plate, and slidable on the upper surface of the fixing plate. And a plurality of small holes through which seeds can pass are formed corresponding to the plurality of large holes of the fixing plate, and have a thickness of 0.4 to 2 times the diameter of the small holes. A seeding apparatus for raising seedlings, which comprises a thin slide plate. 2. The slide plate according to claim 1, wherein the small holes have a diameter of 1.0 to 2.5 mm, and the slide plate has a thickness of 1.0 to 2. A seedling raising seeding device, which is set within a range of 0 mm. 3. The seeding apparatus for raising seedlings according to claim 1, wherein a thick portion is formed on an upper surface of a peripheral portion of the slide plate. 4. The seedling raising device according to claim 3, wherein a rib is provided on the upper surface of the central portion of the slide plate. 5. The seedling raising device for raising seedlings according to claim 1, wherein the slide plate is made of a low friction material. 6. The thick portion formed of a low friction material is formed on a lower surface of a peripheral portion of the slide plate, and the groove portion is formed in a portion of the fixed plate corresponding to the thick portion. The seeding apparatus for raising seedlings is characterized in that it constitutes a guide mechanism for the slide plate.