JPH0515213A - Transplanter - Google Patents

Abstract

PURPOSE:To accurately transplant seedlings while preventing the bed soil from falling off by digging a hole for transplanting the seedlings in the field by using a hole-digging arm also having a function of a seedling holder by which the seedlings were moved to the field surface while the bottom face thereof is held. CONSTITUTION:While seedlings (A) taken out by a seedling transplanter 28 from a seedling-retaining plate are moved to the field surface (F), the bottom surface of the seedlings are held by a hole-digging arm 53 also having a function of a seedling holder. When the seedlings reaches the field surface, a hole (C) for transplanting the seedlings is dug in the field by the hole-digging arm also having the function of a seedling holder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is applied, for example, when a vegetable seedling placed on a seedling placing table is taken out one by one by a seedling planting body and planted in a field where a mulch film is laid.
With one arm, the bottom of the seedling is held from the seedling stand to the field, and when the field is reached, a hole is made in the mulch film, and at the same time, the seedling planting hole is dug and the seedling is planted in that hole. It relates to the device.

[0002]

2. Description of the Related Art Hitherto, as a walking type transplanter for transplanting vegetable seedlings into a field, the one shown in FIGS. 13 to 16 has been proposed by the present applicant. This conventional transplanter 1
As shown in FIG. 13, the engine 2 is mounted on the front part of the machine body, the steering handle 3 is provided on the rear part, and a pair of left and right drive front wheels 4 and rear wheels 5 that can move up and down are equipped. A mission case 7 is connected to the rear of the engine 1 via a centrifugal clutch case 6 having a built-in centrifugal clutch, and a transmission case 8 extends rearward from the mission case 7. On both left and right sides of the mission case 7,
The base ends of the wheel transmission cases 9 and 9 are supported so as to be vertically rotatable, and the drive front wheels 4 and 4 are pivotally supported at the tip ends of the wheel transmission cases 9 and 9. Further, a hydraulic device 10 is provided on the transmission case 8 behind the mission case 7, and the piston 1 which moves forward and backward with respect to the hydraulic cylinder 11 thereof.
The balance mechanism 13 is attached to the tip of the
To both ends of the wheel transmission case, the base ends of the wheel transmission cases 9, 9 are connected to each other via swing rods 14, 14, and the rear wheel 5 is pivotally supported to the tip end via the connecting rods 15, 15. Then, it is connected to an upper end portion of a rear wheel support arm 17 pivotally supported by a shaft 16 so as to be vertically movable.

Although not shown, a large number of vegetable pot seedlings are arranged in a matrix on the airframe between the engine 2 and the steering handle 3 and a seedling sheet having a rectangular planar shape is placed on the airframe. A mounting table 18 is provided. The seedling placement table 18 has a seedling transfer belt 19, and the front and rear portions thereof are supported by the support roller 20 and the left and right reciprocating device 21 to reciprocate in the left and right direction of the machine body with a predetermined stroke. In addition, a seedling receiving frame 22 is fixedly provided on the machine body side at the rear end of the seedling placing table 18, and a seedling take-out port is provided in the left and right central portions of the seedling receiving frame 22. A seedling receiving rod 23 composed of a large number of comb-shaped rods is arranged above the seedling receiving frame 22, and the pot portion (root portion) of the seedling sheet placed on the seedling placing table 18 and sent to the seedling receiving frame 22. I am trying to support.

The left-right reciprocating device 21 is adapted to reciprocate the seedling placing table 18 left and right by receiving power from the planting section transmission case 24 provided at the rear end of the transmission case 8. A sub-planting portion transmission case 25 extends obliquely upward from 24, and the base end portion of the first rotating case 26, which is shown in detail in FIG. The base end portion of the second rotating case 27 is pivotally supported by the portion. A seedling plant 28, which is shown in detail in FIGS. 15 and 16, is attached to the tip of the second rotating case 27. Sub-planting part transmission case 2
5, a chain transmission system 29 is installed, the first rotary case 26 is rotatably supported by a rotary shaft 30 driven by the chain transmission system 29, and is driven by a gear in the first rotary case 26. The second rotating case 2 is attached to the rotating shaft 31.
7 is pivotally supported, and a seedling plant 28 is attached to a rotary shaft 32 that is driven by a gear in the second rotary case 27.
Is installed.

The rotary shaft 32 for mounting the seedling plant 28 is
Within the width of the seedling plant case 33, one end is fixed to the second rotating case 27 and is inserted into the cylindrical shaft 34 that projects laterally to project outside the cylindrical shaft 34, and the supporting case 3 is attached to the projecting portion.
5 is attached, one end of the seedling plant case 33 is fixed to the support case 35, and the other end of the seedling plant case 33 is rotatably supported by the outer peripheral portion of the cylinder shaft 34. A seedling sandwiching nail opening / closing cam 36 and a seedling pushing cam 37 are fixed to the outer peripheral portion of the cylindrical shaft 34.
A cam follower 38 is in sliding contact with. The cam follower 38 is fixed to a rotary shaft 39, and the rotary shaft 39 projects downward from the case 33, and the seedling sandwiching claw 41 on the opening / closing side is attached to the projecting portion via a seedling sandwiching claw attachment 40. ing. The fixed-side seedling-snapping claw 41a is attached to a claw mounting tool 42 provided on the case 33 to form a pair of left and right seedling-snapping claws. The cam follower 43, which is in sliding contact with the seedling pushing cam 37, is connected to a fork support rod 45 which is pressed by a compression spring 44, and a seedling pushing fork 46 is attached to the tip of the fork support rod 45.

[0006] When the seedling transplantation work is carried out in the field F on which the mulch film D is laid by the conventional walking type transplanter having the above-mentioned structure, the seedling planting body 28 moves while the machine runs.
The tip part of the seedlings claws 41 and 41a rotate while drawing a locus of movement P, and in the course of this rotation, the potted seedlings are picked up one by one from the seedling take-out port of the seedling placing table 18 to the field F. Move and transplant hole C of mulch film D in the field
On the other hand, at the same time when the pot seedlings are released from being sandwiched by the seedling sandwiching claws 41 and 41a, they are extruded by the seedling extruding forks 46 and planted.

[0007]

In the conventional transplanter described above, the pot seedlings are sandwiched by the seedling sandwiching claws 41, 41a, taken out from the seedling take-out port, and moved to the field F. It was easy for some of them to fall.
Further, the pot seedlings sandwiched by the seedling sandwiching claws 41, 41a are released from the pot seedlings, and at the same time, the seedling pushing fork 46
Since it was extruded and planted in the field, the soil floor was easily destroyed. Furthermore, a field F on which a mulch film D is laid
When transplanting the pot seedlings to the plant, it is difficult to synchronize with the transplantation holes C, and even if the transplanting is performed while opening the transplantation holes C in the multi-film F, the pot seedlings are still held by the seedling sandwiching claws 41, 41a. However, the resistance was so great that the transplant hole C could not be opened. The present invention has been made for the purpose of solving these conventional problems.

[0008]

[Means for Solving the Problems] In order to achieve the above-mentioned object, the present invention uses a seedling planting body to mount a seedling on a seedling planting section for taking out one seedling placed on a seedling placing stand and planting it in a field. A seedling holding and digging arm was provided to hold the bottom of the seedling while the seedling taken out of the table moved to the field scene, and to dig a hole for planting the seedling in the field when the seedling reached the field scene. It is characterized by.

[0009]

With the above structure, the seedling planting apparatus of the present invention is
The bottom of the seedling is held by the seedling holding and digging arm while the seedling taken out by the seedling planting body moves to the field scene, and when the seedling reaches the field scene, the seedling holding and digging arm is used. Since the holes for planting seedlings are dug in the field, even when planting seedlings such as vegetable pot seedlings having a large soil portion, the soil does not drop. Further, even in a field where a mulch film is laid, seedlings are planted at the same time as the excavation of the planting holes, so that accurate seedling planting work can be performed without causing misalignment.

[0010]

Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The present invention is based on FIG. 13 and FIG.
It is applied to the conventional transplanter of No. 4, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted. The seedling planting body 28 of the first embodiment shown in FIG. 1 comprises a pair of left and right fixed seedling planting claws 47, which are fixed to a seedling planting body case 33. Between the seedling planting claws 47, a seedling pushing fork 46 attached to the fork support rod 45 and extending in a bent manner is arranged. Case 33
One end of a rod 49 is pivotally supported by the tip of a cam follower 48 that slides on a cam (not shown) provided on the inner cylindrical shaft 34, and the other end of this rod 49 is attached to a seedling planting claw 47. A swing arm 52 pivotally supported by a shaft 51 is pivotally supported by the bracket 50. A seedling holding and digging arm 53 is fixed to the rocking arm 52, and a multi-film punching blade 53a is provided at the tip thereof.

The seedling plant 28 of the first embodiment is also provided.
In (1), as soon as the pot seedling A is taken out by the seedling planting claw 47, the bottom surface of the pot seedling A is covered by the seedling holding and digging arm 53 (shown by the solid line in FIG. 1) and moves to the field F surface in that state. Therefore, the bed soil of the pot seedling A does not drop during the movement process to the field F surface. Pot seedling A is field F
When reaching the surface, the seedling holding and digging arm 53 rotates like an imaginary line to open a transplant hole C in the multifilm D by the multifilm drilling blade 53a, and the transplant hole C is formed in the soil therebelow. Excavated. At this point, the fork support rod 45 operates the seedling pushing fork 46 to push the pot seedling A and plant it in the transplant hole C. Therefore, the bed soil of the pot seedling A is not broken, and the transplantation position for the mulch film D is not displaced.

In the seedling plant 28 of the second embodiment of the present invention shown in FIGS. 2 to 4, the cam follower 48 of the first embodiment is elongated and formed in an arc shape, and a plurality of ( Four mounting holes 48a are provided for the rod 4
One end of the shaft 9 is selectively coupled, and the seedling holding / hole digging arm 53 is provided with rotation support plates 54, 54.
5, the other end of the rod 49 is connected to the rotation support plates 54, 54. A compression spring 56 is inserted in the cam follower 48.

The seedling plant 28 of the second embodiment is also provided.
Also, in the same manner as in the seedling planting body 28 of the first embodiment, when the pot seedling is taken out by the seedling planting claw 47, the bottom surface is immediately covered with the seedling holding and digging arm 53,
In that state, move to the field scene. Therefore, the bed soil of the pot seedling does not drop during the movement process to the field scene. When the pot seedling reaches the field scene, the seedling holding and digging arm 53 rotates like a virtual line, and the multi-film punching blade 53
A transplant hole is formed in the mulch film by a and the transplant hole is excavated in the soil thereunder. At this point, the seedling pushing fork 46 is operated by the fork support rod 45 to push out the pot seedlings and plant them in the transplant holes. Therefore, the bed soil of the pot seedling is not broken, and the transplantation position for the mulch film is not displaced.

In the seedling planting body 28 of the third embodiment of the present invention shown in FIG. 5, one of the seedling planting claws 47 is an opening / closing claw 47a,
An arm 57 is provided so as to project from the cam follower 48, and one end of a rotating arm 58 is fixed to the arm 57.
A seedling holding and digging arm 53 is attached to the other end of 8. In the seedling plant 28 of the third embodiment,
When the pot seedlings are taken out by the seedling planting claws 47, the pot seedlings are taken out by the operation of the opening / closing claws 47a, and the bottom surface of the pot seedlings is immediately covered by the seedling holding and digging arm 53 and moved to the field scene in that state. Therefore, the bed soil of the pot seedling does not drop during the movement process to the field scene. When the pot seedling reaches the field scene, the seedling holding and digging arm 53 rotates to open a transplant hole in the multifilm by the multifilm punching blade, and the transplant hole is excavated in the soil therebelow. At this point, the fork support rod 45
Thus, the seedling pushing fork 46 operates to push the pot seedlings and plant them in the transplant holes. Therefore, the bed soil of the pot seedling is not broken, and the transplantation position for the mulch film is not displaced.

The seedling plant 28 of the fourth embodiment of the present invention shown in FIGS. 6 to 8 is the seedling plant 28 of the second embodiment.
One mounting hole 48a is used to connect one end of the rod 49, and the seedling holding and digging arm 53 is provided with the rotation support plates 54, 54, and the seedling planting claw 4 is provided via the shaft 55.
7 is pivotally supported on the side portion, and the other end of the rod 49 is connected to the rotation support plates 54, 54. A compression spring 56 is inserted in the cam follower 48. Also, the cam follower 3
8, a compression spring 59 is also inserted between the case 8 and the seedling plant case 33, and the rotary shaft 39 is projected downward from the case 33, and the seedling sandwiching claw is attached to the projecting portion, as in the third embodiment. The opening / closing claw 47a is attached via the tool 40. Reference numeral 60
Is a working cam for the seedling holding and digging arm.

In the seedling plant 28 of the fourth embodiment, when the pot seedling is taken out by the seedling planting claw 47, the pot seedling is taken out by the operation of the opening / closing claw 47a, and the bottom surface immediately holds the seedling holding and digging arm. It is covered by 53 and moves to the field scene in that state. Therefore,
The soil of pot seedlings does not drop during the movement to the field. Then, when the pot seedling reaches the field scene, the seedling holding and digging arm 53 rotates to open a transplant hole in the multifilm by the multifilm punching blade, and at the same time, the transplant hole is excavated in the soil therebelow. It At this time, the opening / closing claw 47a is opened to release the sandwiching of the pot seedling, and the fork support rod 45 operates the seedling pushing fork 46 to push the pot seedling and plant it in the transplant hole. Therefore, the bed soil of the pot seedling is not broken, and the transplantation position for the mulch film is not displaced.

The pot seedlings placed on the seedling placing table 18 are sent to the side of the seedling receiving frame 22 and moved to the left and right as the seedling placing table 18 moves left and right to the seedling take-out port provided on the seedling receiving frame 22. When it reaches, it is taken out from here by the seedling planting body 28, but at this time, the bottom surface of the pot seedling is in an open state, so that the bed soil is dropped. Therefore, in the present invention, as shown in FIG. 9 and FIG.
Bracket 6 fixed to the bottom of seedling receiving frame 22 facing a.
An opening / closing plate 61 is rotatably provided on the shafts 2 and 62 via a shaft 63, and is connected to a lever 65 via a coil spring 64 on the shaft 63. The opening / closing plate 61 is supported by the elastic force of the coil spring 64 so as to normally close the seedling take-out port 22a, and when the seedling is taken out by the seedling planting body 28, the elastic force of the coil spring 64 is exerted by the downward pressure. It has a habit of returning by the resilient force of the coil spring 64 when the seedlings are taken out by being turned against. The opening / closing plate 61 can be opened / closed by a lever 65.

The opening / closing plate 61, as shown in FIG.
The support rod 66 may be supported so as to be openable and closable. In this case as well, although not shown, a spring is provided on the support rod 66 so that the opening / closing plate 61 is elastically moved. In the structure in which the opening / closing plate 61 is provided so as to face the seedling take-out port 22a, the pot seedlings are sent from the seedling placing table 18 to the seedling receiving frame 22 side and move left and right as the seedling placing table 18 moves left and right. The bottom surface of the pot seedling is supported by the opening / closing plate 61 when reaching the seedling take-out port 22a while being kept, and the soil floor is not dropped. Then, when the pot seedlings on the open / close plate 61 are taken out by the seedling planting claws 47, the pot seedlings are taken out by the operation of the open / close claws 47a, and the open / close plate 61 is rotated downward by the descending of the seedling planting body 28. Then, the bottom surface of the pot seedling is immediately covered with the seedling holding and digging arm 53, and in that state, the pot seedling moves to the field scene. Therefore, the ground soil of pot seedlings is rarely dropped. When the pot seedling reaches the field scene, the seedling holding and digging arm 53 rotates,
At the same time that the mulch film drilling blade drills a graft hole in the mulch film, the graft hole is excavated in the soil therebelow. At this point, the opening / closing claw 47a is opened to release the sandwiching of the pot seedling, and the fork supporting rod 45 is used to push the seedling pushing fork 4
6 operates to push out pot seedlings and plant them in the transplant holes.
The opening / closing plate 61 returns by the elastic force of the coil spring.

In the fifth embodiment of the seedling planting body 28 shown in FIG. 12, the cam follower 48 is actuated by the operation cam 60 for holding the seedling holding and digging arm, and the seedling planting body 28 turns the pot seedling into a field. When the seedling holding and digging arm 53 is rotated, the multi-film piercing blade 53a opens the transplant hole in the multi-film, and at the same time, the cam surface for excavating the transplant hole in the soil thereunder, The arcuate cam surface 60a is used. The fifth of this seedling plant 28
In the example, the potted seedlings reach the field scene by the seedling planting body 28, the seedling holding and digging arm 53 is rotated, and the multifilm perforating blade 53a is used to open the transplant holes in the multifilm. When excavating a transplant hole in a field, the seedling holding and digging arm 53 forms an arc-shaped transplant hole, so that pot seedlings can be stably planted.

[0020]

As described above, according to the seedling planting apparatus of the present invention, while the seedlings taken out from the seedling placing table by the seedling planting body move to the field scene, the bottom surface of the seedlings is held by the seedling holding and digging arm. Hold and when the seedling reaches the field scene,
Since the holes for planting seedlings are digged in the field by the seedling holding and digging arm, even when planting seedlings with a large soil portion such as vegetable pot seedlings, the soil is removed when the seedlings are taken out or moved to the field scene. It never falls. Further, even when seedlings are planted in the field where the mulch film is laid, the seedlings are planted at the same time as the excavation of the planting holes, so that accurate planting work can be performed without causing any deviation in the planting holes.

[Brief description of drawings]

FIG. 1 is a side view of a seedling plant according to a first embodiment of the present invention.

FIG. 2 is a side view of a seedling plant according to a second embodiment of the present invention.

FIG. 3 is a plan view of a seedling holding and digging arm.

FIG. 4 is a front view of a seedling plant according to a second embodiment of the present invention.

FIG. 5 is a perspective view of a seedling plant according to a third embodiment of the present invention.

FIG. 6 is a side view of a seedling plant according to a fourth embodiment of the present invention.

FIG. 7 is a front view of the same.

FIG. 8 is a plan view of the same.

FIG. 9 is a perspective view of a seedling take-out port according to the present invention.

FIG. 10 is a front view of the same.

FIG. 11 is a perspective view of another embodiment of the seedling take-out port and explanation of the seedling take-out action.

FIG. 12 is a side view for explaining the seedling planting action of the fifth embodiment of the present invention.

FIG. 13 is an overall side view of a walking type transplanter applied to a conventional example and the present invention.

FIG. 14 is a cross-sectional view of a seedling plant drive unit applied to a conventional example and the present invention.

FIG. 15 is a side view of a seedling plant according to a conventional example.

FIG. 16 is a front view of a seedling plant according to a conventional example.

[Explanation of symbols]

1 Walk-behind transplanter 18 Seedling stand 22 Seedling receiving frame 22a Seedling take-out port 24 Seedling planting part transmission case 25 Sub-seedling planting part transmission case 26 First rotating case 27 Second rotating case 28 Seedling planting body 32 Rotating shaft 33 Seedling Planting case 34 Cylinder shaft 36 Seedling sandwiching claw opening / closing cam 37 Seedling pushing cam 38, 43, 48 Cam follower 41 Seedling sandwiching claw 44, 56, 59 Compression spring 45 Fork supporting rod 46 Seedling pushing out fork 47 Fixed seedling planting claw 47a Opening / closing Claws 49 Rods 50,62 Brackets 51,55,63 Shafts 52 Swing arms 53 Seedling holding and digging arms 53a Multi-film punching blades 54 Rotating support plates 57 Arms 58 Rotating arms 60 Seedling holding and digging arm operating cams 60a Arc-shaped cam surface 61 Opening / closing plate 64 Coil spring 65 Lever 66 Support rod D Multi film C Transplant hole F Field P Motion locus

Claims (1)

[Claims] [Claim 1] The seedlings placed on the seedling placing table are taken out one by one and planted in the field at the seedling planting section, and the seedlings taken out from the seedling placing table by the seedling plant are used until the field scene. A seedling planting device, which is provided with a seedling holding and digging arm that holds the bottom surface of the seedling while moving and when the seedling reaches a field scene, digs a hole for planting the seedling in the field.