JPH088601Y2 - Lightweight nursery soil supply device for nursery boxes - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a device for automatically supplying a lightweight nursery soil to a nursery box.

[0002]

Mixture heavy and that the Related Art raw material nursery soil soil (non-metallic minerals) or a soil and organic matter, not constant granule size and shape, described in JP-Open Rights 6-7029 In order to automatically and mechanically supply the nursery box soil containing plant fiber residue and other organic matter, such as lightweight materials, to the nursery box, which is made of lightweight and crushed material of inconsistent size and shape. as a device, the present invention have the actual opening previously flat 6-
No. 33445 was proposed. Also, the same kind of Japanese Patent Laid-Open No.
No. 92209 is also known.

According to the results of repeated studies after that, depending on the characteristics of the light-weight seedling cultivation soil targeted in the configuration of the above-mentioned prior invention, there are still the following problems to be improved. did.

[0004]

That is, in the case of the above-mentioned prior invention, the front wall surface (16) of the soil storage hopper (H) is formed in a vertical plane, and the soil supply is opened to the lower end of the vertical plane. The fact that the rotary impeller (R) with the salient (23) is faced from the inside of the hopper (H) to the position close to the mouth (18) is because of the mutual organic and synergistic effects of the above-mentioned soil feeding. As far as the vicinity of the mouth (18), the bridging phenomenon of the lightweight seedling cultivation soil (M) could be reliably prevented as intended.

[0005] However, the impeller (R) is not present in addition to a position close to the soil feeding port (18), yet by its soil feeding port (18) opening and closing operation for metering shutter (20), nursery soil Since the feeding amount of (M) is adjusted and set in advance, for example, the seedling cultivation soil (M) is a hopper (H) of the mycelium due to active breeding of soil microorganisms that live and feed it. In the case where there is a high-density entangled state in which a cobweb is tightly stretched all over the inside, or when the rotation speed of the rotary impeller (R) is the running speed of the soil feeding belt (14). When it is excessively or imbalancedly slow compared with the speed, and / or when the opening of the soil feeding port (18) is limited to a small value, the rotary impeller (R) is used. Seedling cultivation soil (M) Tsu di phenomenon quickly, and efficiently in addition to eliminating unable to, impeller conversely
Leave the nursery soil (M) to the natural position where (R) does not exist.
Non-uniformly, or to the above-mentioned soil feeding port (18)
Depending on the degree of opening, the nursery soil (M) may become clogged.
It is also difficult to always secure a uniform and stable supply amount.
It's difficult.

And, such a problem is caused by the above-mentioned JP-A-53.
The same can be said for -92209. Also in this known invention, the number of feeding rolls (15) is one, and it is not present except for the outlet (14) in the hopper (13), and the opening of the hopper outlet (14) is adjusted, This is because it is configured to feed and supply a slight excess amount.

[0007]

[Means for Solving the Problems] The present invention has such problems
Of contemplates the improvements, and the installation equipment frame to the configuration on the working floor for the a nursery box carrier made of a endless belt or a roller which is Jikuka to the device frame,
As a relational state in parallel with the upper position of the seedling raising box, an endless cultivation soil feeding belt axially mounted on the device frame,
It has a bottom-opening type soil storage hopper that is also attached to the equipment frame so that the soil feeding belt can be used as a movable bottom, and the lightweight seedling cultivation soil stored in the hopper is passed around the soil feeding belt. By driving, from the soil feeding port that is opened to the front wall surface of the hopper, into the seedling growing box by the drive of the carrier, in the seedling feeding medium supply device that is determined to be sequentially fed out and dropped,

[0008] The soil feed belt and a plurality of soil stirring impeller to maintain a constant height level difference, in particular to Jikuka substantially parallel cross state to middle height position inside the hopper
From the rotating impellers as movable dam shelves
Rotate the seedling cultivation soil that has been bridge-blocked by rotating the rotary impeller.
It is released by stirring force and collapsed onto the above-mentioned soil feeding belt.
At least the front wall surface of the hopper is shaped in a vertical plane, and the front wall surface is cut out with a soil feeding port of a size almost corresponding to the height difference to be used in an always open state. It is what

[0009]

According to the above construction of the present invention, the soil feeding belt is used as a movable bottom at a midway position in the soil accommodating hopper.
Of soil stirring impeller to be movable dam shelves nursery soil
Since a plurality of lightweight nursery soils housed in the above hopper are suspended by the damming shelves, a plurality of them are suspended in a substantially parallel transverse state.
, So that it does not fall evenly depending on the nature
A deliberately created cross-linked state that was dammed and deposited from
The rotary stirring force of the rotary impeller continues
As it affects the whole, it is immediately and efficiently released,
Make sure that it is not fallen down on the soil feeding belt.
And

Then, the seedling-raising soil, which has uniformly dropped onto the agitating rotary impeller and the soil-raising belt for keeping a constant height difference, is transferred to the front wall surface of the hopper by the feeding belt, but before that. The wall surface is shaped as a vertical surface, and since the large soil feeding port with a size almost corresponding to the above-mentioned height difference is always open,
Its feeding a risk of clogging phenomena port without any, to ensure at all times a certain amount of nursery soil is self Dzuto is being and feeding to the good stability nursery box the supply.

In this case, the feeding amount of the seedling-raising soil to be fed to the seedling-raising box can be set in advance by adjusting the rotational speed of the stirring rotary impeller. Cover
A plurality of the rotary impellers for stirring are located at a middle height in the hopper.
In the storage, a movable dam shelf for raising seedlings is formed,
This cough supported nursery soil from below by is a lightweight product as mentioned at the beginning, has the property of Nodules of fit that絡Rami aggressive rotary stirring from below by the impeller This is because the entangled state is not released unless the force is applied, and therefore, the entangled state does not fall unevenly by leaving it to the natural environment .

A movable weir comprising a plurality of the above rotary impellers
The shelf causes the seedling cultivation soil to generate a bridge phenomenon once,
The landslide is caused by the mechanical stirring force of the rotary impeller.
In the sense that it is released and dropped,
It can be said that this is the reverse use of the bridge phenomenon.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The specific construction of the present invention will be described in detail below with reference to the drawings. In FIG. 1 showing the outline of the lightweight seedling cultivation soil supplying device, (U) is a general term for a drive unit,
Apparatus frame (11) for installation on the work floor, nursery box carrier (12) consisting of endless belts and rollers grouped on the apparatus frame (11), and the upper stage of the nursery box (13) As a state of being in parallel with the position, the endless culture medium feeding belt (14) also mounted on the apparatus frame (11) is also provided.

Then, the nursery box carrier (12) is driven by a drive source (not shown) such as a motor so as to sequentially advance the nursery box (13) in the arrow direction (F) of FIGS. In conjunction with this, the soil feeding belt (14) is also rotated in the same direction.

(H) is a bottom-opening type soil storage hopper fixed to the device frame (11) of the drive unit (U) from above in a so-called cassette type or cartridge type so as to be detachable and replaceable. The device frame (1
When the hopper (H) is attached to the hopper (1), the bottom of the hopper (H) is, as shown in FIGS. 1, 3 and 4, clearly placed as a movable bottom by the soil feeding belt (14). Become.

As a mounting and fixing means for the hopper (H), a screw fastener (15) consisting of a plurality of bolts and nuts is used in the illustrated embodiment, as is apparent from FIG. As long as it is attachable / detachable / replaceable with respect to the above), a locking hook without a work tool or other appropriate means may be adopted instead of the screw fastener (15). By removing it, cleaning work inside the hopper (H) can be conveniently performed.

The hopper (H) is basically in the shape of a square funnel, but the front wall surface (16) and either side wall surface (17) or both side wall surfaces (17) of FIG. As you can see, it stands upright.

However, as suggested by the modified embodiment of FIG. 5 corresponding to FIG. 2, the front wall surface (16) of the hopper (H).
Only the left and right side wall surfaces (17) and the rear wall surface (18) may be used as the vertical plane, and the remaining wall surfaces (17) and the rear wall surface (18) may be inclined upward to increase the storage capacity of the nursery soil (M) as much as possible.

Furthermore speaking, hopper top position of (H) is a square funnel, dissipate flared inclined slope face of the upper expanse, nursery soil below in the hopper (H)
At the position lower than the movable damming shelves , the rear wall surface (1
Even if all wall surfaces including 8) are modeled on the vertical plane, it does not matter.

(R) is a midway height in the hopper (H) so as to maintain a constant height difference (Y) between it and the soil feeding belt (14) forming the movable bottom of the hopper (H). A plurality of shafts crossing the position (total 3 in the figure)
Individual) rotary impellers for agitating the soil, the seedlings being housed in the hopper (H) by the plurality of substantially parallel arrangements.
And it forms the shape of the movable dam shelf (L-L) of the soil (M).

Each of the rotary impellers (R) is integrally formed from a rotary spindle (19) which horizontally traverses along the left-right direction of the hopper (H) and a circumferential surface of the rotary spindle (19). It comprises a plurality of stirring blades (20) overhanging, and by its rotating stirring action, the seedling-raising soil (M) in the hopper (H) is a soil-feeding belt (14) as its movable bottom.
It is designed to be able to quickly and surely fall down.

In this regard, in the illustrated embodiment, seedling cultivation soil (M)
In relation to the above-mentioned being a lightweight material, from the meaning that it prevents entanglement and clogging of the stirring blade (20) and allows the seedling-raising soil (M) to be efficiently released and collapsed, The stirring blade (20) in the form of a needle bar made of a metal wire is passed through the rotary support shaft (19) or is welded to the circumferential surface of the rotary support shaft (19) to form a rotary support shaft (19). When viewed from the axial direction of
Similarly, when viewed from the radial direction, the adjacent pitches are arranged in a staggered arrangement, and the distribution is as rough as possible.

However, as long as the above-mentioned lightweight seedling cultivation soil (M) can be dropped into a landslide state by the rotary stirring action of the rotary impeller (R), the stirring blade (20) can be of any shape other than the needle bar shape. , Row form, spiral form, simple hook form,
A disc shape, a basket drum shape supported by a pair of left and right rotating support shafts (19) that do not traverse the hopper (H), and the like can be adopted without any design restrictions. It is desirable to set the pitch between adjacent stirring blades (20) roughly.

Reference numeral (21) is an input pulley or input sprocket fitted to one end of an arbitrary rotary support shaft (19) of the plurality of rotary impellers (R) described above.
Reference numeral (22) is also a drive motor for the rotary impeller (R), which is preferably an attached unit in advance on the rear wall surface (18) of the hopper (H).
The output pulley or output sprocket (23) and the input pulley or input sprocket (21) are interconnected by a transmission belt or transmission chain (24).

In addition, at one end or the other end of the rotary support shaft (19) of each rotary impeller (R), there are transmission gears (25) that are in mesh with each other and are adjacent to each other, via a key or a spline. The rotary impeller (R) receives a driving force from the motor (22) in the direction of the arrow (P) in FIGS.
It is adapted to be interlocked rotation.

Needless to say, the transmission gear (25) is juxtaposed outside the side wall surface (17) of the hopper (H). (26) is a pillow block for bearing both ends of each rotation support shaft (19) on the left and right wall surfaces (17) of the hopper (H).

Needless to say, the agitating blades (20) of the adjoining rotary impellers (R) are arranged so as not to interfere with each other, but even if the mutual gap is temporarily wide, the seedling cultivation soil (M) itself bridge. because it is a lightweight material of enough to cause symptoms, without falling naturally from the broad gap, the movable dam
And thus deposited on because the shelf (L-L). The seedling cultivation
To cause the bridge phenomenon to occur in the soil (M),
This is temporarily blocked from below by the movable blocking rack (LL).
Support, and, so to speak, naturally fall at random
It is designed to be kept in a non-existent state.

The same applies to the mutual gap between the rotary impeller (R) and the hopper (H). If necessary, the mutual gap should be set appropriately in consideration of the properties of the nursery soil (M). Just select it. On the contrary, if the mutual gap is too narrow, the rotary stirring force of the rotary impeller (R) is applied,
It is not preferable because the nursery soil (M) is less likely to collapse.

In the illustrated embodiment, the transmission gear (25)
A plurality of the same are modeled together to reduce the manufacturing cost and compatibility, and the rotation speed of the rotary impeller (R) can be increased or decreased rationally by attaching / detaching and replacing any number of them. It can be adjusted and set.

Also, the transmission gear (25) is also meshed.
As a plurality of them, they are interlocked and rotated in the opposite directions to each other. According to this, the seedling cultivation soil (M) in the hopper (H) is combined with the needle bar shape of the stirring blade (20). Multiple rotating impellers can be released and act more efficiently
As long as the seedling raising soil (M) can be surely destroyed by the interlocking rotation in (R), the rotary impeller (R)
The above-mentioned rotation directions may be set to be the same.

Further, in the illustrated embodiment, a plurality of rotary impellers (R) are axially installed in parallel in the hopper (H) all at the same height position, and the movable weir formed by this is formed.
The shelves (LL) are kept horizontally, but the above seedling cultivation soil
If (M) can be dammed and supported from below , a certain level difference may be provided between the adjacent rotating impellers (R) adjacent to each other. Give a certain level difference
The rotating impeller (R) with different diameters
Numbers in parallel to the same height position in the hopper (H)
It is also conceivable to mount it on a shaft.

In any case, the transmission gear (25) is attached / detached / replaced, its meshing gear ratio is changed, and the rotational speed of the rotary impeller (R) is set faster or slower by advance adjustment setting. , Via the soil feeding belt (14) from the hopper (H), the nursery box (1) on the nursery box carrier (12)
The supply amount of the nursery soil (M) fed out and dropped to 3) can be adjusted to a large amount or a small amount, and for that reason, the metering shutter of the prior application devised at the beginning is unnecessary.

However, the feeding amount of seedling cultivation soil (M)
The adjusting means may be the input pulley or the input spline.
Output pool of rocket (21) and drive motor (22)
Lee or output sprocket (23) was removed and replaced
In addition, the drive motor ( 22) is equipped with a transmission.
As a result, the rotation speed may be changed. Up
Rotary impeller replacing the meshing rotating means of the transmission gear (25)
(R) transmission means and rotation by changing the rotation speed
In the sense that it is possible to adopt a means for adjusting the supply amount of supply.
It

A drive motor for the rotary impeller (R)
(22) to the wall surface of the hopper (H) as in the illustrated embodiment
The above drive unit (U) instead of the attached unit
The nursery box carrier (12) and the soil feeding belt (14)
Combined with the drive source such as the motor to drive,
Rotate the above-mentioned rotary impeller (R) by take-out transmission power
It may be driven.

Further, reference numeral (27) in FIGS. 1, 3 and 4 is a culture soil feeding port cut out in the vertical front wall surface (16) of the hopper (H), which is of the rotary impeller (R) . the nursery soil movable dam shelf made form a plurality in <br/> (L-L),
It has a size substantially corresponding to a constant height difference (Y) with the soil feeding belt (14), and is used in the state where it is always open.

Therefore, in combination with the fact that it is not opened or closed by the above-mentioned metering shutter, etc., its soil feeding port (2
7) There is no risk that the seedling cultivation soil (M) will be clogged.
Moreover, the upper edge of the opening of the soil feeding port (27) is movable as described above.
Since it substantially matches the height position of the damming shelves (L-L), it is also a lightweight material of the seedling cultivation soil (M) itself, and is associated with the front wall surface (16) of the temporary hopper (H) and the rotary impeller ( Even if the mutual gap with R) is wide, there is no risk of leaking from the gap to the front of the seedling cultivation soil (M) and dropping.

In using the present invention having the above structure,
The nursery box carrier (12) and the soil feeding belt (14)
In addition, the rotary impeller (R) for stirring the soil is driven and the lightweight seedling soil (M) is introduced from above the hopper (H), and then the seedling soil (M) is a lightweight material. multiple by depositing on the form made a movable damming shelves (L-L), damming supported on crosslinked state that caused a bridge phenomenon in the hopper (H) of the impeller (R)
Will be held. Don't fall unevenly in its natural
It is kept in a state.

The seedling raising box (13) is provided with its carrier (1
Due to the swirling action of 2), while moving forward in the direction of the arrow (F) in FIGS. 1 and 4, a plurality of the rotary impellers (R) are interlocked and rotated by the blades (20) in the hopper (H).
In order to give a mechanical stirring force to the seedling cultivation soil (M), the cultivation soil (M) surely collapses onto the soil cultivation feeding belt (14) forming the movable bottom of the hopper (H), and the soil cultivation feeding belt (14). Is transferred to the front by and is fed into the nursery box (13) from the open soil feeding port (27).
It will be supplied .

At this time, the nursery soil (M) for a lightweight material which easily causes the bridge phenomenon is transferred to the movable dam rack (L-L) by the reverse use of the bridge phenomenon, and once it is uneven in nature.
Are stable well deposited as cross-linking state of not falling to one,
On the other hand, since the positive rotary stirring force by the rotary impeller (R) is surely given from the position directly below as it propagates to the entire inside of the hopper (H), the bridge phenomenon is immediately and efficiently eliminated. In addition , the cultivated soil feeding port (2
Due to the fact that 7) is in a normal state of being greatly opened, the seedling-raising soil (M) can be accurately fed out into the seedling-raising box (13) quantitatively and supplied.

If the rotational speed of the rotary impeller (R) is relatively fast in relation to the running speed of the soil feeding belt (14), the feeding amount of the seedling growing soil (M) is increased. On the contrary, if the rotation speed is slowed down, the feeding amount of the seedling-raising soil (M) can be similarly reduced, and the adjustment set can be easily performed to cope with the change in the properties of the seedling-raising soil (M). You will get it. Does that mean
Also, it is difficult for the seedling cultivation soil (M) of this kind to have difficult metering.
Opening adjustment operation of the soil feeding port (27) by a shutter
Is unnecessary.

[0041]

As described above, according to the present invention, a nursery box comprising a device frame (11) for installation on a work floor and an endless belt or roller axially mounted on the device frame (11) due to its structure. The carrier (12) and its nursery box (1
3) As a state of being in parallel with the upper position, the endless soil-feeding belt (14) axially mounted on the device frame (11) and the soil-feeding belt (14) are set as movable bottoms. A lightweight seedling cultivation soil (M) housed in the hopper (H), which is provided with a bottom-opening type soil cultivation housing hopper (H) attached to the frame (11).
By running drive of the above-mentioned soil feeding belt (14),
From the culture soil feeding port (27) opened to the front wall surface (16) of the hopper (H), it is determined to sequentially feed and drop into the seedling raising box (13) which is moving forward by the drive of the carrier (12). In the seedling cultivation soil supply device,

A plurality of rotary impellers (R) for stirring soil, which maintain a constant height difference (Y) with the soil feeding belt (14).
And by Jikuka substantially parallel <br/> cross state to middle height position inside the hopper (H), the impeller
A plurality of (R) are once dammed as movable dam shelves (LL).
The above-mentioned rotary impeller (R) is used to grow the nursery soil (M)
It is released by the rotating stirring force of the
(14) At least the front wall surface (16) of the hopper (H) is shaped in a vertical plane, and the front wall surface (16) has a size substantially corresponding to the height difference (Y). because you have cut out soil feeding port (27) for use in a normally open state of the, the effect capable of improving the problems of its own prior application invention and known invention mentioned at the outset fully.

That is, according to the above-mentioned configuration of the present invention, a plurality of rotary impellers (R) axially mounted in a transverse state substantially parallel to a mid-height position in the hopper (H) are provided as a lightweight seedling cultivation soil ( the M) so as not to unevenly fall in a natural left, once
Stablely support the dam and intentionally cause the bridge phenomenon.
It functions as a movable dam rack (L-L), and the dam rack (LL) itself is continuously driven by a mechanical rotary stirring force .
Reliable landslide phenomena to the nursery soil (M) by force, with and is adapted to drop into soil feeding belt (14) above, the stirring blade (20) of the rotary impeller (R), the Since the entanglement of the nursery soil (M) can be released, the feeding amount to the nursery box (13) is always corrected evenly regardless of the nature of the nursery soil (M).
It can be secured.

Moreover, the front wall surface (16) of the hopper (H)
Is shaped in a vertical plane, and corresponds substantially to the height difference (Y) between the soil feeding belt (14) that forms the movable bottom of the hopper (H) and the movable dam rack (LL). The large-sized soil culture feeding port (27) is not restricted to a narrow size by a metering shutter or the like, and is notched in an open state at all times. Therefore, there is a risk that seedling cultivation soil (M) will be clogged here. Without the nursery box (1
The feeding action of the 3) is smoothed extremely smooth stable good management and Do Ri, difficult metering for this kind nursery soil (M)
Opening adjustment operation of the soil feeding port (27) by a shutter
Does not need

Further, by the rotational stirring force of the rotary impeller (R) serving as the movable dam rack (L-L), the seedling-raising soil (M) once deposited in a crosslinked state on the dam rack (L-L). )
The, since adapted to drop entirely break in Ho wrapper (H), the stirring blade in the impeller (R) (2
0), adjacent pitches, rotational speeds of the impellers (R) themselves, and the like, are less likely to be restricted by design, can be easily implemented, and have an effect of improving work efficiency.

In particular, if the configuration of claim 2 is adopted,
Even if the bottom area of the hopper (H) increases or the storage capacity of the seedling cultivation soil (M) increases, the plurality of rotary impellers (R) are rotated in the opposite directions,
The landslide phenomena spread to the whole of the hopper (H), the lightweight nursery bed soil to (M) can be easily applied, in addition to correspondence spreads for dimensional change of the hopper (H), education seedling soil ( there is also increasingly promoting can effect the Tokihanashi action of M).

If the constitution of claim 3 is adopted, the above-mentioned releasing action can be further promoted by the stirring blade (20) in the form of the needle bar, and the seedling cultivation soil (M) can be quickly destroyed. Since it is simple and sufficient as a necessary structure for that purpose, it is excellent in mass productivity.

Further, if the configuration of claim 4 is adopted,
The drive motor (22) of the rotary impeller (R) and the transmission means to the impeller (R) are pre-assembled into a hopper (H), and the hopper (H) is assembled into a unit frame (11). ), The drive unit (U) including the device frame (11) can be used not only for general purpose but also for cleaning the hopper (H) and the above transmission. The replacement work of gears (25) is performed from the device frame (11) to the hopper (H).
There is also an effect that it can be easily performed under the condition that the is removed.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an overall outline of a lightweight seedling cultivation soil supply device according to the present invention.

FIG. 2 is a plan view showing an extracted soil storage hopper of FIG.

FIG. 3 is an enlarged sectional view taken along line 3-3 of FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a plan view showing a modified embodiment of the hopper corresponding to FIG.

[Explanation of symbols]

U ... Drive unit H ... Culture soil storage hopper M ... Raising seedling soil R ... Rotating impeller Y ... High / low step LL ... Movable dam rack 11 ... Device frame 12 ... Nursery box carrier 13 ... Nursery box 14 … Soil feeding belt 16… Front wall surface of hopper 19… Rotating spindle 20… Stirring blade 22… Drive motor 25… Transmission gear 27… Soil feeding port

Claims (4)

[Scope of utility model registration request] 1. A device frame (11) for installation on a work floor.
And a nursery box carrier (12) composed of an endless belt or roller mounted on the apparatus frame (11) and the apparatus frame (12) in parallel with the upper position of the nursery box (13). 11) An endless cultivated soil feeding belt (14) mounted on the shaft 11 and the cultivated soil feeding belt (1)
4) As the movable bottom, the device frame (1
1) equipped with a bottom-opening type cultivation soil accommodating hopper (H), the seedling cultivation soil (M) accommodated in the hopper (H)
By driving the soil feeding belt (14) to rotate, from the soil feeding outlet (27) opened to the front wall surface (16) of the hopper (H), the seedling box () is being moved forward by driving the carrier (12). 13) In the seedling-raising soil supplying device that is designed to be sequentially fed out and dropped into the inside, the above-mentioned soil feeding belt (14) and a certain height difference (Y)
A plurality of rotary impellers (R) for agitating the soil to be maintained are axially mounted in a transverse state substantially parallel to the mid-height position in the hopper (H), whereby the rotary impeller (R) is rotated. ) Multiple
Nursery seedlings that have been once bridged by damming as a moving damming shelf (LL)
The cultivated soil (M) is stirred by the rotary stirring force of the rotary impeller (R).
Unravel and collapse onto the above-mentioned soil feeding belt (14)
With defined as drop, then shaped into a vertical plane at least front wall (16) of the hopper (H), in a normally open state substantially corresponding size as the height level difference (Y) before the wall (16) A lightweight seedling-raising soil supply device for a nursery box, which is characterized by cutting out a soil-feeding mouth (27) used. Multiple, lightweight nursery soil supply device to the nursery box according to claim 1, characterized in that transmission connected for rotation to each other in the opposite direction adjacent of that wherein impellers (R) . 3. A stirring blade (20) for each rotary impeller (R)
The seedling raising box according to claim 1, characterized in that the seedling raising soil (M) is detached by the blades (20) thereof as a needle bar form protruding radially from the rotary support shaft (19). Lightweight seedling cultivation soil supply device to. 4. A cultivation soil accommodating hopper (H) is detachably and exchangeably attached to an apparatus frame (11) from above, and a rotary impeller (R) is attached to a wall surface of the hopper (H).
The lightweight seedling cultivation soil supply device for a seedling raising box according to claim 1, characterized in that the drive motor (22) of 1.