JPH11220908A - Seedling transplanter - Google Patents

Abstract

(57) [Summary] (Problem corrected) [Problem] To plant seedlings in a hole-forming body that moves up and down so as to intermittently enter the soil to form a hole in a field and a planting hole formed by the hole-forming body When transplanting in a seedling transplanting machine such as a vegetable seedling transplanting machine provided with a seedling planting device and a soil covering device for performing soil covering on the left and right of the planted seedlings, the hole is used to shift the left and right spaces from the left and right spaces of the soil covering device. A hole having a large width must be formed, and the hole created by the hole making body becomes large, and a space formed by covering with a heat insulating covering material is widened, and the heat insulating effect of the seedling may be reduced. is there. SOLUTION: A drilling body vertical movement mechanism 3 with a forward movement of a body.
Seedling transplantation provided with a drilling body 37 that moves into the soil while operating forward with respect to the field by operating 8 and a seedling planting device 13 for planting seedlings in the hole formed by the drilling body 37 The machine was formed in an inverted triangular shape in rear view so that the hole body 37 became wider in the left-right direction as going upward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a seedling transplanter for planting a seedling in a hole formed by a drilling body.

[0002]

2. Description of the Related Art As a conventional technique, in a seedling transplanter such as a vegetable seedling transplanter, a drilling body which moves up and down so as to intermittently enter the soil to form a planting hole in a field, There is a seedling transplanter provided with a seedling planting device for planting a seedling in a planting hole formed by a body. In this seedling transplanter, the seedling planter supplies and seeds the seedlings in the planting holes created by the drilling body, and the seedlings of the planted seedlings are not stable as they are. In some cases, a soil covering device such as a soil covering ring is provided on the rear side of the seedling planting device so as to cover the left and right of the planted seedling after planting.

[0003] In raising tobacco seedlings, a deep hole is made in a field, a tobacco seedling is planted in the hole, and the periphery of the seedling planted with a heat insulating covering material such as a multi-film covering the upper part of the seedling. There is one that raises the heat retention effect and isolates the seedlings from the outside world.

[0004]

However, when raising the seedlings by separating the periphery of the seedlings planted with the heat insulating covering material from the outside world, the seedling transplanter described above drills a deep hole in the field with the above-described hole-forming body. When planting, the soil covering of the planted seedlings must be stabilized by performing soil covering on the left and right of the seedling by the soil covering device in the hole formed by the hole making body, so that the left and right sides of the soil covering device are planted by the hole making body. It is necessary to form a hole having a width larger than the space, so that the hole created by the drilling body becomes large and the space formed by covering with the heat insulating coating material becomes large, and There is a possibility that the heat retaining effect is reduced.

[0005]

The present invention takes the following technical means to solve the above-mentioned problems. That is, a seedling provided with a drilling body 37 that moves up and down so as to intermittently enter the soil to form a hole in the field, and a seedling planting device 13 that seeds a seedling in the hole formed by the drilling body 37. In the transplanting machine, the hole body 37 is configured to protrude into the soil while being moved forward with respect to the field, and the hole body 37 is configured to be wider in the left-right direction as the hole body 37 moves upward. Seedling transplanter.

Therefore, in the seedling transplanter of the present invention, the hole is lowered while moving the hole to the front, and is made to penetrate into the soil to form a hole while accumulating soil on the front side of the hole. Transplant the seedlings. And, since the drilling body is configured to be wider in the left-right direction as it goes to the upper part, as the drilling body rises to retreat from the soil,
The soil accumulated on the front side of the drilling body spills into the hole from the left and right ends of the drilling body, and is covered on the left and right sides of the planted seedling.

[0007]

Thus, the seedling transplanter of the present invention covers the left and right of the planted seedling with the upward movement of the hole-forming body. Therefore, a soil covering device for covering the left and right of the planted seedling is provided. The seedlings can be urged to cover the left and right without any special provision.

[0008]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 shows a walking-type seedling transplanter 1 for transplanting tobacco seedlings that have become molded seedlings. The walking-type seedling transplanter 1 includes a pair of left and right drive wheels 2 and 2 and a pair of left and right driving wheels. The free running wheels 3 and 3 provided behind the wheels 2 and 2 respectively travel under the side wall of the ridge, and run along the ridge over a ridge created in a field. An engine 4 is mounted on the front of the fuselage, and the main drive case 5 and the left and right traveling extension cases 6 and 6 are output by the engine 4.
The right and left driving wheels 2, 2 mounted inside the traveling chain cases 7, 7 are driven via the left and right traveling chains 7, 7, respectively. The engine 4 includes the main drive casing.
It is configured to be fixed to the front side of the switch 5. A rearwardly extending planting case 8 is fixedly provided at a position on the left side of the rear portion of the main transmission case 5, and a planting transmission case is provided at the rear end of the planting case 8. 9 is fixed. Therefore,
The power in the main transmission case 5 is transmitted to the planting transmission case 9 via the planting case 8. On the other hand, a rearwardly extending front and rear frame 10 is fixedly provided at a position on the right side of a rear portion of the main transmission case 5, and a rear end portion of the front and rear frame 10 and the planting chain case are provided. 8 left and right frames 11 connecting both
Is provided.

At the rear of the planting transmission case 9, a seedling planting device driving case 12 extending upward and rearward is fixedly provided, and the seedling planting device driving case 12 is inserted through the case. The seedling is transmitted to a seedling planting device 13 provided on the right side of the plant 12 and the seedlings are planted in the field by the seedling planting device 13. A handle support frame 14 extending rearward and upward is provided above the seedling planting device drive case 12, and the handle support frame 1 is provided.
4, a handle 15 is provided at the rear of the body. The handle 15 is provided with a grip 15
a, 15a, and is provided to be deviated leftward with respect to the left and right center of the fuselage, and is gripped by an operator who walks in a ridge behind the left drive wheel 2 and idle wheel 3. I can do it.

The left and right extension cases 6, 6
Is composed of inner casings 6a, 6a and outer casings 6b, 6b. The outer casings 6b, 6b are slid with respect to the inner casings 6a, 6a to adjust the lateral length. It is provided as possible. In the extension cases 6 and 6, a right and left traveling chain case input shaft 16, which is transmitted from the main transmission case 5 to the traveling chain cases 7, 7, is provided.
A shaft 16 is provided so that the shafts 16 slide and expand and contract with the expansion and contraction of the extension cases 6 and 6. Therefore, the treads of the left and right drive wheels 2, 2 can be adjusted according to the ridge width of the field by expanding and contracting the extension cases 6, 6. The inner casings 6a, 6a are provided rotatably around the traveling chain input shafts 16, 16 with respect to the main transmission case 5, and the extension cases 6, 6 and traveling chain cases 7, 7 are provided. Are integrally rotated.

The idler wheel 3 is provided at the rotating tip of each of the left and right idler wheel support arms 17, 17, and the idler wheel support arms 17, 17 are attached to the arms 17, 17. The rotating bosses 18, 18 which rotate integrally with the rotating shaft 17 rotate around a free wheel supporting arm rotating fulcrum shaft 19 which extends in the left-right direction so that the height with respect to the machine body can be changed. . The idler wheel support arm rotation fulcrum shaft 19 is connected to the rear end of the front and rear frame 10 and the planting chain case 8.
Rotating support shaft support plate 20 fixed to the rear end of
20 is supported so as not to rotate. The idler wheel support arms 17, 17 are connected to the rotating bosses 18, 1, respectively.
8 is provided so as to be slidable to the left and right, so that the treads of the left and right idle wheels 3, 3 can be adjusted according to the ridge width of the field.

A hydraulic wheel lifting cylinder 21 is provided substantially at the center of the body in the front, rear, left and right directions. A lateral rod 22 extending left and right is provided at a cylinder rod end of the wheel lifting cylinder 21.
Is fixed. Drive wheel elevating rods 23, 23 are pivotally attached to the left and right ends of the horizontal rod 22, respectively.
The other end of the left and right extension case 6,6
It is configured to be connected to. Therefore, the travel chain input shaft 1 is driven by the expansion and contraction of the wheel lifting cylinder 21 via the horizontal rod 22 and the driving wheel lifting rods 23, 23.
The traveling chain cases 7, 7 are rotated around 6, 6, and the driving wheels 2, 2 are moved up and down by the rotation of the traveling chain cases 7, 7, so that the machine body moves up and down. I have. Idling wheel elevating rods 24, 24 are pivotally attached to the left and right ends of the horizontal rod 22, respectively, and the other ends of the rods 24, 24 are connected to the rotating bosses of the left and right idler wheel supporting arms 17, 17, respectively. 18, 18 are connected to rotating arms 18a, 18a fixed thereto. Therefore, by the expansion and contraction of the wheel lifting cylinder 21,
The idler wheel support arm 17, via the horizontal rod 22, the idler wheel lifting rods 23, 23 and the rotating bosses 18, 18,
The idle wheel 17 is turned up and down together with the drive wheels 2 and 2 to move up and down.

At the upper part of the machine body, there is provided a seedling mounting table 30 on which a plurality of formed seedlings arranged in rows and columns grown by a seedling sheet in which a plurality of paper pots are connected vertically and horizontally. A seedling feed belt 31 for moving the seedling mounting table 30 left and right by one plant at a time, and feeding the seedlings on the seedling mounting table 30 backward by one plant at the end of the lateral movement of the seedling mounting table 30 is provided. At the seedling outlet 32 provided on the rear side of the seedling mounting table 30, the molded seedlings on the seedling mounting table 30 are scraped off one by one by the seedling planting device 13 behind the seedling mounting table 30.
Is configured to transport the scraped seedlings and plant them in the field. The seedling mounting table 30 moves left and right by transmitting the power from the planting transmission case 9 into the left and right moving transmission case 34. The seedling feed belt 3
Numeral 1 denotes a seedling feed driving cam 35 driven by power in the planting transmission case 9 abutting against a seedling feeding arm 36 provided on the seedling mounting table 30 side, thereby causing the arm 36, 36 to move. By rotating, it is configured to operate so as to send the seedlings backward by one plant. In addition, it is transmitted from the main transmission case 5 to the planting transmission case 9 to move the seedling mounting table 30 left and right,
The structure is such that the seedling feed belt 31 and the seedling planting device 13 operate so that the speed is proportional to the running speed of the machine body.

The seedling plant 13 has a fixed blade 13 on the left side.
a, a clamping blade 13b movable to the right and left is provided on the right side, and the fixed blade 13a and the clamping blade 13b are used to hold a molded seedling of one strain while scraping it at the seedling removal outlet 32. In the seedling plant 13, the fixed blade 13 a and the holding blade 13 b operate while drawing a closed loop-shaped trajectory T that is long in the vertical direction. The seedlings are pushed downward by the seedling pushing tool 13c to plant the seedlings.

Further, in front of the seedling planting device 13, a drilling body 37 which moves up and down to form a planting hole intermittently in a field scene.
Is provided. The hole body 37 is configured to move up and down with respect to the body by a hole body vertical movement mechanism 38 supported by the body. The drilling body vertical movement mechanism 38 includes a drilling body vertical movement mechanism mounting plate 3 fixed to the planting transmission case 9.
9, the upper link 38a and the lower link 38b attached to the plate 39, and the rear link 38c connecting the other ends of the upper link 38a and the lower link 38b are formed as four side links. And the rear link 38c
The hole 37 is attached to the hole. A contact roller 38d is provided in the middle of the upper link 38a, and the upper link 38 is brought into contact with the roller 38d from above.
There is provided a drilling body vertical movement cam 38e for pushing down a.
The drilling body vertical movement cam 38e is provided coaxially with the seedling feed driving cams 35, 35 driven by the power in the planting transmission case 9 so as to rotate integrally with the seedling feeding driving cams 35, 35 to move the upper link 38a up and down. As a result, the rear link 38c is moved up and down, and the drilling body 37 is moved up and down intermittently. In addition, between the spring mounting arm 38f provided on the drilling body vertical movement mechanism mounting plate 39 and the upper link 38a, a drilling body upper movement urging spring 38g is provided. 3
8a, that is, the rear arm 38c is urged to move upward. The spring mounting arm 38f is configured so that the mounting angle can be adjusted with respect to the hole body vertical movement mechanism mounting plate 39, and the mounting angle of the spring mounting arm 38f can be adjusted. Thereby, the biasing force of the above-described hole body upward biasing spring 38g can be adjusted. Also, the hole body vertical movement mechanism mounting
The contact roller 38 in the middle of the upper link 38a
In a state in which d does not abut against the drill body vertical movement cam 38e, the upper link 38 is opposed to the drill body upward movement urging spring 38g.
An upward movement stopper 38h for regulating upward movement of a is provided.
The drill body vertical movement cam 38e has a shape such that the drill body 37 is maintained at the lowermost position, and the drill body 37 forms a hole having a predetermined front-rear width in the soil. ing.

The drilling body 37 is formed of a plate.
It is generally an isosceles triangle whose lower part is narrower in rear view. The lower end portion 37a of the hole-forming body 37 has a configuration in which the left and right widths are equal in the vertical direction.
The floor portion of the formed seedlings enters into the hole of the field formed by a. The drilling body 37 is provided with a drilling body mounting base 37b fixed to the upper part thereof.
8 is fixedly attached to the hole body mounting plate 38i integral with the rear link 38c by mounting screws 40, 40.

The seedling planting device 13 is inserted into the hole formed by the bore 37.
Thus, the drilling body 37 is provided immediately before the seedling planting device 13 so that seedlings can be planted. The fixed blade 13a and the clamping blade 13b of the seedling planting device 13 are slightly delayed after the hole 37 moves down to reach the lowermost position.
Reaches the bottom dead center of the operation locus T, and the drilling body 37, the fixed blade 13a and the holding blade 13b start to rise almost simultaneously.

A field scene sensing plate 41 is provided in front of the drilling body 37. The field scene sensing plate 4
Numeral 1 is provided so as to be rotatable around a rotation fulcrum shaft 42 in the left-right direction, and is driven by the seedling planting apparatus 13 so as to have a predetermined planting depth with the rotation of the plate 41 by grounding. The wheels 2, 2 and the idle wheels 3, 3 are raised and lowered. In addition, on the contact surface side of the field scene sensing plate 41, there is a vinyl glued to only the end of the plate 41 on the side of the rotation fulcrum shaft 42.
The film 43 is provided to prevent soil from adhering to the field scene sensing plate 41 and the film 43.

In the vicinity of the handle 15, a main clutch lever 44 capable of cutting off transmission to the drive wheels 2, 2 and the planting transmission case 9 is provided. A planting / elevating lever 45 for raising and lowering the rollers 3, 3 is provided. The planting / elevating lever 45 is provided to be operated in the front-rear direction, and is driven by the airframe elevating fixed position and the field scene sensing plate 41 as it is operated forward from the airframe elevating position at the rear end of the lever 45 operation. There is an automatic body elevating position for raising and lowering the wheels 2 and 2, and when further operated forward, the seedling planting system is driven.

As described above, this walking-type seedling transplanter 1
A drilling body 37 that moves up and down so as to intermittently enter the soil to form a hole in the field, and a seedling planting device 13 that seeds a seedling in the hole created by the drilling body 37 are provided. By lowering the drilling body 37 by the drilling body vertical movement mechanism 38 while moving forward, the drilling body 37 is made to enter the soil while being moved forward with respect to the field, and the drilling body 37 is generally moved. By forming an isosceles triangle in which the lower part becomes narrower in rear view, the width becomes wider in the left-right direction toward the upper part.

Therefore, the walking-type seedling transplanter 1 lowers the hole making body 37 while moving it to the front side and makes it penetrate into the soil to form a hole at the front side of the hole making body 37 while collecting the soil. Then, transplant the seedling into the hole. Since the hole body 37 is configured to be wider in the left-right direction as it goes upward, the hole body 37 moves upward to retreat from the soil by the hole body vertical movement mechanism 38. Then, the soil accumulated on the front side of the hole making body 37 spills into the hole from the left and right ends of the hole making body 37 and is covered on the left and right sides of the planted seedling.

Therefore, since the soil is covered on the left and right of the planted seedling with the upward movement of the hole 37, it is not necessary to particularly provide a soil covering device such as a soil covering ring for covering the left and right of the planted seedling. It can also encourage the seedlings to cover left and right. Thereby, when raising the tobacco seedlings in order to isolate the periphery of the seedlings planted with the heat insulating covering material A from the outside world and to enhance the initial heat retaining effect after planting, a deep hole is made in the field by the hole making body 37. When planting seedlings, the hole formed by the hole-forming body 37 can be reduced, and the space formed by covering the ridge with the heat retaining coating material A after planting the seedlings can be reduced. The heat retention effect can be improved. In addition, since the soil is covered on the left and right sides of the seedling planted by the upward movement of the hole-forming body 37, the root of the seedling planted by the seedling planting device 13 can be stabilized.

Further, since the drilling body 37 is formed as an isosceles triangle whose lower part is generally narrowed in rear view,
As the hole 37 moves upward, the soil accumulated on the front side of the hole 37 is evenly spilled from the left and right ends of the hole 37 into the hole where the soil is formed, and the seedlings planted are The left and right soil covering amounts can be made substantially the same, and the posture of the seedlings planted by the soil covering can be prevented from deteriorating, thereby stabilizing the root stock.
Further, since the lower end 37a of the hole-forming body 37 is configured to be horizontal in the left and right directions, the floor soil of the formed seedlings planted by the seedling planting device 13 is supplied to the horizontal plane portion B of the hole formed by the lower end 37a. Then, the molded seedlings can be stably planted in an appropriate posture by the seedling planting device 13.

Since the hole 37 and the fixed blade 13a and the clamping blade 13b of the seedling planting device 13 start to rise almost simultaneously, the seedling is inserted into the hole formed by the hole 37. Immediately after the seedlings are supplied by the attaching device 13, the soil is covered by the upward movement of the drilling body 37.
The seedlings are covered with the seedlings held by the a and the holding blades 13b, thereby suppressing the deterioration of the planting posture of the seedlings due to the soil covering.
Immediately after the seedling is supplied to the hole formed by the hole-forming body 37 by the seedling planting device 13, the soil is covered by the upward movement of the hole-forming body 37. Before feeding, the soil is not spilled out of the drilling body 37 due to the upward movement of the drilling body 37 in the hole, thereby suppressing the deterioration of the planting posture of the seedlings.

Since the left and right driving wheels 2, 2 are provided inside the traveling chain cases 7, 7,
The traveling chain cases 7, 7 are prevented from interfering with the side walls C, C of the ridge which are raised to form a deeper hole in the drilling body 37, so that the traveling chain case is prevented.
The ridges 7 and 7 prevent the ridge from breaking.

[Brief description of the drawings]

FIG. 1 is a side view of a walking type seedling transplanter.

FIG. 2 is a plan view of a walking type seedling transplanter.

FIG. 3 is a side view showing a drilling body.

FIG. 4 is a plan view showing a drilling body.

FIG. 5 is a rear view showing a state in which the drilling body creates a hole.

[Explanation of symbols]

1 ... walking type seedling transplanter, 13 ... seedling planting device, 37 ... drilling body

Claims (1)

[Claims] 1. A drilling body 37 which moves up and down so as to intermittently enter the soil to form a hole in a field, and a seedling planting device 13 which seeds a seedling in the hole formed by the drilling body 37. In the seedling transplanter provided, the hole drilling body 37 is configured to move into the front while being moved forward with respect to the field, and to enter the soil,
A seedling transplanter characterized in that the bore 37 is made wider in the left-right direction as it goes upward.