JP3358196B2 - Seedling planting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for removing a plant seedling placed on a seedling stand from a seedling plant and planting it in a field by using a seedling holder. The present invention relates to a seedling planting apparatus that holds a bottom surface of a seedling.

[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, an engine 2 is mounted on the front of the fuselage, a steering handle 3 is provided on the rear, and a pair of left and right driving front wheels 4 and a rear wheel 5 that can move up and down are equipped. A transmission case 7 is connected to a rear portion 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 transmission case 7. On the left and right sides of the transmission case 7,
The base end portions of the wheel transmission cases 9 and 9 are vertically rotatably supported, and the driving front wheels 4 and 4 are pivotally supported at the distal ends of the wheel transmission cases 9 and 9. A hydraulic device 10 is provided on a transmission case 8 behind the transmission case 7, and the piston 1 moves forward and backward with respect to a hydraulic cylinder 11.
The balance mechanism 13 is attached to the tip of the balance mechanism 2.
Are connected to the base ends of the wheel transmission cases 9 and 9 via swinging rods 14 and 14, and the connecting rods 15 and 15 support the rear wheel 5 to the distal end. The shaft 16 is connected to an upper end of a rear wheel support arm 17 pivotally supported so as to be vertically movable.

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

The right-and-left reciprocating device 21 receives the power from the planting portion transmission case 24 provided at the rear end of the transmission case 8 and reciprocates the seedling mounting table 18 left and right. A sub-planting portion transmission case 25 extends obliquely upward from 24, and a base end of a first rotating case 26 shown in detail in FIG. 14 is pivotally supported by the sub-planting portion transmission case 25, and a distal end of the first rotating case 26. The base of the second rotating case 27 is pivotally supported by the portion. A seedling plant 28 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
A chain transmission system 29 is provided in the inside 5, and a first rotating case 26 is rotatably supported via a rotating shaft 30 driven by the chain transmission system 29, and is driven by a gear in the first rotating case 26. The second rotating case 2 is attached to the rotating shaft 31.
7 is pivotally supported, and a seedling plant 28 is mounted on a rotating shaft 32 driven and driven by a gear in the second rotating case 27.
Is installed.

[0005] The rotating 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 inserted into a laterally protruding cylindrical shaft 34 to protrude outside the cylindrical shaft 34.
One end of the seedling plant body case 33 is fixed to the support case 35, and the other end of the seedling plant body case 33 is rotatably supported by the outer peripheral portion of the cylindrical shaft 34. A seedling pincer opening / closing cam 36 and a seedling pushing cam 37 are fixedly attached to the outer peripheral portion of the cylindrical shaft 34.
, A cam follower 38 is in sliding contact. The cam follower 38 is fixed to a rotating shaft 39, and the rotating shaft 39 protrudes downward from the case 33, and a seedling pinching claw 41 on the opening / closing side is attached to the protruding portion via a seedling pinching fixture 40. ing. The fixed-side seedling pincer 41a is attached to a nail attachment 42 provided in the case 33 to form a pair of left and right seedling pincer claws. The cam follower 43 slidingly contacting the seedling pushing cam 37 is connected to a fork supporting rod 45 pressed by a compression spring 44, and a seedling pushing fork 46 is attached to a tip end of the fork supporting rod 45.

When a seedling transplanting operation is performed on the field F on which the multi-film D is laid by the conventional walking type transplanter having the above-described configuration, the seedling-planting body 28 is moved with the running of the machine.
The tip of the seedling rotates while drawing a movement locus P. In this turning process, the seedling pinching claws 41, 41a pinch and pick out pot seedlings one by one from the seedling outlet of the seedling mounting table 18 to the field F. Moved and transplanted hole C of multi-film D in the field
On the other hand, the pinching of the pot seedling by the seedling pinching claws 41 and 41a is released, and at the same time, the seedling is pushed out by the seedling pushing fork 46 and planted.

[0007]

In the above-mentioned conventional transplanter, the pot seedlings are pinched by the seedling pinching claws 41, 41a, taken out from the seedling outlet, and moved to the field F. Was easy to fall.
Further, the pot seedlings pinched by the seedling pinching claws 41, 41a are released at the same time when the pinching is released, and the seedling pushing fork 46 is pressed.
And planted in the field, the floor soil was easily broken. The present invention has been made to solve these conventional problems.

[0008]

To achieve the above object, the present invention provides a pair of right and left seedling planting claws 47 which open and close.
Plant that moves up and down to plant seedling A in the field with
A seedling on which the seedlings 28 and the seedlings taken by the seedlings 28 are placed
In the seedling planting section provided with the mounting table 18, a seedling holding tool 61 for holding the bottom surface of the seedling A until just before the seedling plant 28 takes the seedling A out of the seedling mounting table 18, Body 28
Take the seedlings and plant them while moving to the field scene
And a seedling holder 53 for holding the bottom surface of the seedling held by the claws 47. The seedling holder 53 is attached to the seedling plant 28.
At the base of the seedling planting claw 47 that moves up and down.
The seedling holding tool is attached to a drive unit for driving the opening and closing of the seedling planting claws 47.
53 holds the bottom of seedling A held by seedling planting claws 47
Moveable between the position and the position retracted from the holding position
A drive unit 60 for the seedling holder 53 is provided, and the seedling holder 53 is detached.
Interlockingly connected to a driving unit, the planting body 28 seedlings A
Seedlings holder 53 when removed from the seedling base 18 is retracted from the position for holding the bottom surface of the seedling A, the planting body
When the seedling 28 is taken out of the seedling outlet 22a of the seedling mounting table 18 and descends to the seedling placement position in the field scene,
The holding tool 53 has moved to a position for holding the bottom surface of the seedling A.
This is characterized in that it operates as follows.

[0009]

According to the above construction, the seedling planting apparatus of the present invention has the following features.
Planting body seedlings when taking out the bottom of該苗seedlings holder is held until just before removal from the stand seedling, also planting body
But between the bottom surface of the seedlings seedlings holder holds to move to the field surface to eject the seedlings. Therefore, even when planting a seedling having a large floor soil portion such as a vegetable pot seedling, the floor soil does not fall.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. It should be noted that the present invention relates to FIG.
4 are applied to the conventional transplanter of FIG. 4, and the same components are denoted by the same reference numerals and detailed description thereof will be omitted. The seedling plant 28 of the first embodiment shown in FIG. 1 has a pair of fixed right and left seedling planting claws 47 fixed to a seedling plant case 33. A seedling pushing fork 46 attached to the fork support rod 45 and extending in a bent state is disposed between the seedling planting claws 47. Case 33
One end of a rod 49 is pivotally supported at 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 the 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 swing arm 52, and a multi-film punching blade 53a is provided at a tip end thereof.

The seedling plant 28 of the first embodiment is
As soon as the pot seedling A is taken out by the seedling planting nail 47, the bottom surface is covered with the seedling holding and digging arm 53 (shown by a solid line in FIG. 1), and moves to the field F in this state. Therefore, the floor soil of the pot seedling A does not fall during the movement process to the field F surface. Pot seedling A is field F
When the plant reaches the surface, the seedling holding and digging arm 53 rotates like a virtual line, and the transplanting hole C is formed in the multi-film D by the multi-film punching blade 53a. Excavated. At this point, the seedling pushing fork 46 is operated by the fork supporting rod 45 to push out the potted seedling A and plant it in the transplanting hole C. Accordingly, the floor soil of the potted seedling A is not broken, and the transplant position for the multi-film D is not shifted.

A seedling plant 28 according to a second embodiment of the present invention shown in FIGS. 2 to 4 is formed in an arc shape by elongating the cam follower 48 of the first embodiment, and a plurality of the cam followers 48 are arranged in the length direction. (Four in the drawing) mounting holes 48a are provided so that the rod 4
9 are selectively connected to each other, and rotation support plates 54 and 54 are provided on the seedling holding and digging arm 53 so that the shaft 5
The pivoting support plates 54 are connected to the other ends of the rods 49 by pivotally supporting the seedling planting claws 47 via the nuts 5. A compression spring 56 is inserted in the cam follower 48.

The seedling plant 28 of the second embodiment is
Also, in the same manner as in the seedling plant 28 of the first embodiment, when the pot seedling is taken out by the seedling planting nail 47, the bottom surface is immediately covered with the seedling holding and digging arm 53,
Move to the field scene in that state. Therefore, the floor soil of the pot seedling does not fall 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 an imaginary line, and the multi-film punching blade 53
A transplant hole is made in the multi-film by a and a transplant hole is excavated in the soil below the multi-film. At this time, the seedling pushing fork 46 is operated by the fork supporting rod 45 to push out the pot seedling and plant it in the transplanting hole. Therefore, the soil of the pot seedlings is not broken, and the transplant position for the multi-film is not shifted.

A seedling plant 28 according to a third embodiment of the present invention shown in FIG.
An arm 57 projects from the cam follower 48, and one end of a rotating arm 58 is fixed to the arm 57, and the rotating arm 5
8 is provided with a seedling holding and digging arm 53 at the other end. In the seedling plant 28 of the third embodiment,
When the pot seedlings are taken out by the seedling claw 47, the pot seedlings are taken out by the operation of the opening and closing claws 47a, and the bottom surface is immediately covered with the seedling holding and digging arm 53, and in that state, it moves to the field scene. Therefore, the floor soil of the pot seedling does not fall during the movement process to the field scene. When the pot seedling reaches the field scene, the seedling holding and digging arm 53 is rotated to make a transplanting hole in the multi-film by the multi-film drilling blade, and a transplanting hole is excavated in the soil thereunder. At this time, the fork support rod 45
As a result, the seedling pushing fork 46 is operated to push out the pot seedling and plant it in the transplant hole. Therefore, the soil of the pot seedling is not broken, and the transplant position for the multi-film is not shifted.

The seedling plant 28 of the fourth embodiment of the present invention shown in FIGS. 6 to 8 is similar to the seedling plant 28 of the second embodiment.
The rod 49 is connected to one end of the rod 49 by using a single mounting hole 48a.
7, 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, Cam Follower 3
A compression spring 59 is also interposed between the case 8 and the seedling plant body case 33, and the rotating shaft 39 is protruded downward from the case 33 in the same manner as in the third embodiment. The opening / closing claw 47a is attached via the tool 40. Symbol 60
Is an operation cam for seedling holding and digging arm.

In the seedling plant 28 of the fourth embodiment, when the pot seedling is taken out by the seedling claw 47, the pot seedling is picked up by the operation of the opening / closing claw 47a, and the bottom surface is immediately set to hold the seedling holding and digging arm. It is covered by 53 and moves to the field scene in that state. Therefore,
The floor soil of the pot seedling does not fall during the movement process to the field scene. Then, when the pot seedling reaches the field scene, the seedling holding and digging arm 53 is rotated to make a transplanting hole in the multi-film by the multi-film punching blade, and at the same time, a transplanting hole is excavated in the soil thereunder. You. At this time, the opening / closing claw 47a is opened to release the holding of the pot seedling, and the seedling pushing fork 46 is operated by the fork supporting rod 45 to push out the pot seedling and plant it in the transplant hole. Therefore, the soil of the pot seedling is not broken, and the transplant position for the multi-film is not shifted.

The pot seedlings placed on the seedling mounting table 18 are sent to the seedling receiving frame 22 side, and are moved to the right and left along with the left and right movement of the seedling mounting table 18 to the seedling outlet provided in the seedling receiving frame 22. When it reaches, it is taken out from here by the seedling plant 28, but at this time, the bottom surface of the pot seedling is in an open state, so that the floor soil falls. Therefore, in the present invention, as shown in FIGS.
bracket 6 fixed to the bottom surface of seedling receiving frame 22 facing
An opening / closing plate 61 is rotatably provided on the shafts 2 and 62 via a shaft 63, and is connected to the lever 63 via a coil spring 64 on the shaft 63. The opening / closing plate 61 is supported so as to always close the seedling take-out opening 22a by the resilience of the coil spring 64, and when the seedlings are taken out by the seedling plant 28, the opening / closing plate 61 receives the resilience of the coil spring 64 by the downward pressure. When the seedlings are rotated against each other and the seedlings are taken out, a habit of returning by the elastic force of the coil spring 64 is given. The opening / closing plate 61 can be opened / closed by a lever 65.

The opening / closing plate 61 is, as shown in FIG.
The support rod 66 may be supported so as to be openable and closable. Also in this case, although not shown, a spring is provided on the support rod 66 so that the opening / closing plate 61 moves elastically. Thus, in the configuration in which the opening and closing plate 61 is provided facing the seedling take-out opening 22a, the pot seedling is sent from the seedling placing stand 18 to the seedling receiving frame 22 side, and moves left and right with the left and right movement of the seedling placing stand 18. When the seedlings reach the seedling take-out opening 22a, the bottom surface of the pot seedling is supported by the opening / closing plate 61, and the floor soil does not fall. When the pot seedlings on the opening / closing plate 61 are taken out by the seedling planting claws 47, the pot seedlings are taken out by the operation of the opening / closing claws 47 a, and the opening / closing plate 61 is turned downward by the lowering of the seedling planting body 28 to move downward. And the bottom surface of the pot seedling is immediately covered with the seedling holding and digging arm 53, and moves to the field scene in that state. Therefore, the floor soil of the pot seedlings falls very little. When the pot seedling reaches the field scene, the seedling holding and digging arm 53 rotates,
A transplant hole is made in the multi-film by the multi-film drilling blade, and at the same time, the transplant hole is excavated in the soil below the multi-film. At this time, the opening / closing claws 47a are opened to release the holding of the pot seedling, and the fork pushing rod 4 is forcibly pushed by the fork supporting rod 45.
6 is actuated to extrude the pot seedling and plant it in the transplant hole.
The opening / closing plate 61 is returned by the elastic force of the coil spring.

In the fifth embodiment of the seedling plant 28 shown in FIG. 12, the cam follower 48 is operated by the operation cam 60 for holding seedling and digging arm, and the seedling plant 28 turns the pot seedling into a field scene. When the seedling holding and digging arm 53 is rotated, the transplanting hole is formed in the multi-film by the multi-film punching blade 53a, and at the same time, the cam surface for excavating the transplanting hole in the soil below the This is an arc-shaped cam surface 60a. The fifth of this seedling plant 28
In the embodiment, the pot seedling reaches the field scene by the seedling planting body 28, the seedling holding and digging arm 53 is rotated, and a transplanting hole is formed in the multi-film by the multi-film punching blade 53a. When excavating a transplanting hole in a field, an arc-shaped transplanting hole is formed by the seedling holding and digging arm 53, so that a potted seedling can be stably planted.

[0020]

As described above, according to the seedling planting apparatus of the present invention, a pair of left and right seedling planting claws 47 that open and close are operated.
Seedling plant that moves up and down so that seedling A can be planted in the field
Seedlings for placing seedlings 28 and seedlings taken by the seedlings 28
The seedling planting unit provided with a pedestal 18 was, and taken out during seedling holder 61 for holding the bottom of該苗A just before the planting body 28 taken out seedlings A from seedling stage 18, the planting body 28
While removing the seedlings and moving to the field scene,
47 is provided with a seedling holder 53 for holding the bottom surface of the seedling sandwiched between the seedlings, so that the seedling A having a large floor soil portion such as a vegetable pot seedling is provided.
The floor soil does not fall even when planting. Since the seedlings are held by the seedling holding tool 61 just before the seedlings A are taken out from the seedling mounting table 18, not only the floor soil does not fall, but also the posture of the seedlings A to be taken out is appropriate until just before being taken out. The seedlings A can be taken out from the seedling mounting table 18 in a favorable manner. In addition, the
The seedling holder 53 is evacuated from the position for holding the bottom surface of the seedling A when the seedling plant 28 takes out the seedling A from the seedling table 18.
Take out seedling A from outlet 22a and plant seedling in field scene
Position to hold the bottom of seedling A when descending to the attachment position
Since a configuration operable moving, when taking out the seedlings A from seedling stage 18 by planting body 28, the bottom surface of the seedlings A during seedling retainer 61 seedlings holder 53 is taken out unobtrusive Can be released and the seedling plant 2
The seedling A can be satisfactorily taken out by the method No. 8. In addition, Naeho
The holder 53 is attached to the seedling plant 28 and
Seedling planting nail at the base of descending seedling planting nail 47
A seedling holder 53 is planted in a drive section for opening and closing the drive 47.
Position where the nail 47 holds the bottom of the seedling A to be clamped and the holding position
Of the seedling holder 53 that can be moved to a position where
A driving unit 60 is provided, and the seedling holder 53 is connected to the driving unit.
And pivotal coupling, since the seedling holding device 53 was configured to operate as described above, the seedling holding device 53 including a driving unit compactors
And a simple structure.
3 and its interlocking system can be made compact.
Rattling in the interlocking system of
Suitable for seedling planting operation of seedling plant 28 such as opening and closing
The seedling holder 53 can be operated at an appropriate timing,
Seedlings can be planted well.

[Brief description of the 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 outlet according to the present invention.

FIG. 10 is a front view of the same.

FIG. 11 is a perspective view of another embodiment of a seedling take-out opening and a description of a seedling taking action.

FIG. 12 is a side view illustrating a seedling planting operation according to a 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 conventional seedling plant.

FIG. 16 is a front view of a conventional seedling plant.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Walking type transplanter 18 Seedling mount 22 Seedling receiving frame 22a Seedling take-out port 24 Seedling planting part transmission case 25 Secondary seedling planting part transmission case 26 First rotation case 27 Second rotation case 28 Seedling plant 32 Rotation axis 33 Seedling Planting Case 34 Tube Shaft 36 Seedling Claw Opening / Closing Cam 37 Seedling Pushing Cam 38, 43, 48 Cam Follower 41 Seedling Claw 44, 56, 59 Compression Spring 45 Fork Support Rod 46 Seedling Fork 47 Fixed Seedling Claw 47a Open / Close Claw 49 Rod 50, 62 Bracket 51, 55, 63 Shaft 52 Swing arm 53 Seedling holding and digging arm 53a Multi-film drilling blade 54 Rotation support plate 57 Arm 58 Rotating arm 60 Seedling holding and digging arm operating cam 60a Arc-shaped cam surface 61 Opening / closing plate 64 Coil spring 65 Lever 66 Support rod D Luchifilm C transplantation hole F field P motion trajectory

Claims (1)

(57) [Claims] A pair of left and right seedling planting claws (4 ) that open and close.
7) Up and down movement to plant seedlings (A) in the field
Seedlings (28), and the seedlings (28)
Seedling seedling stage for placing that (18) and the seedling planting unit provided with, planting body (28) seedlings (A) a seedling stand (18)
The seedling holding device (61) for holding the bottom surface of the seedling (A) until immediately before the seedling is removed, and the seedling plant (28) removes the seedling.
The seedling planting claw (4) is taken out and moved to the field scene.
7) a seedling holder (53) for holding the bottom surface of the seedling to be clamped , and the seedling holder (53) is attached to the seedling plant (28).
And the base of the seedling planting nail (47) that moves up and down
Drive unit for opening and closing the seedling claw (47) in the unit
Then, the seedling holding tool (53) is clamped by the seedling planting claws (47).
A position for holding the bottom of the seedling (A) and retracting from the holding position
Of the seedling holder (53) that can be moved to
(60) is provided, in conjunction connects the driving portion該苗retainers (53), said planting member (28) seedlings holder when taking out seedlings (A) from seedling stage (18) ( 53) is retracted from the position for holding the bottom surface of the seedling (A), and the seedling plant (28)
Seedlings but the seedling stage (18) seedling outlet of (22a)
Take out (A) and descend to the seedling planting position in the field scene
The seedling holding device (53) is configured to operate so as to move to a position for holding the bottom surface of the seedling (A).