JP3484790B2 - Seedling transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accommodates seedlings one by one.
Pick up the seedlings from each pot in the seedling box where many pots are arranged vertically and horizontally.
The present invention relates to a seedling transplanter that projects out of a field. [0002] 2. Description of the Related Art Pots for accommodating seedlings one by one are arranged in many rows and columns.
Seedlings grown in flexible seedling boxes arranged in several rows
The seedling box is loaded into the planting area and transported along a predetermined transport route.
While transporting, through the hole formed at the bottom of the seedling box
Insert the seedling push pin into the pot of the seedling box and remove the seedling from the seedling box.
Extrude (first seedling removal device), receive the extruded seedlings
The removed seedling holder moves down in an arc
The seedlings are transported to a predetermined seedling removal position (first seedling transport device),
At the seedling removal position where the moving direction of the seedling holder is almost horizontal
In addition, the seedling extractor is relatively moved by moving the seedling holder.
Inserted into the seedling holder of the seedling holder,
From the seedling feed belt (second seedling
Take-out device) and send the seedlings taken out of the seedling holder
The belt is transported in the horizontal direction (second seedling transport device)
It is configured to supply one plant at a time to the seedling collecting position of the implanting device.
There is a seedling transplanter. [0003] SUMMARY OF THE INVENTION
Seedling holder is attached to swing arm that swings
And the swing arm swings.
The seedling holder draws an arc-shaped locus and moves downward.
However, conventional seedling transplanters remove seedlings at the seedling removal position.
After the seedling holder has moved out, the seedling holder
-When the posture of the seedling is disturbed
There was a problem.It is also pushed by the first seedling removal device.
In some cases, the seedlings are not received in the correct posture.
Was.The present invention aims to solve the above problems.
I have. [0004] [MEANS FOR SOLVING THE PROBLEMS]
The present invention has the following configuration. That is, the present invention
The seedling transplanter according to
Seedlings from each pot in the seedling boxExtrudefirst
A seedling removal device and the first seedling removal deviceExtrusionPlanted seedling
The seedling holder that has received it draws an arc trajectory and moves downward
The first seedling transfer device that transfers seedlings to a predetermined seedling removal position
Transported to the seedling removal position by the first seedling transport device.
Second seedling removal device for removing a seedling from the seedling holder
Receiving the seedlings removed by the second seedling removal device
A second seedling transfer device that transfers the seedlings to the planting device
A seedling holder of the first seedling transfer device.
DahReceives the seedlings extruded by the first seedling removal device
A seedling holding section, and take out seedlings at the seedling removal position.
After turning, move to the upper side of the path of the descending stroke and move
And in the middle of the return stroke,
Seeds that intersect and the first seedling removal device pushes seedlings from a seedling box
Move to the extrusion position from the leaf side of the extruded seedling
And move up and down by drawing a roughly 8-shaped trajectoryOctopus
It is characterized by. [0005] [Action] A seedling is taken out in the descending stroke of the seedling holder, and the seedling is removed.
When the holder moves up, it moves to the upper side of the path of the descending stroke.
Run. For this reason, it is already taken out on the second seedling transfer device.
Do not catch seedlings that have been removed.Also seedling holder
Draws a roughly eight-shaped locus and pushes the seedling of the first seedling removal device
Move to the take-out position.
To receive the seedlings.
You. [0006] 1 to 8 show an embodiment of the present invention.
You. The seedling transplanter 1 is mounted on the rear side of a riding type traveling vehicle body 2.
The planting section 4 of the six-row planting is mounted so as to be able to go up and down through the linking device 3.
In addition, a side line fertilizer 5
Fertilizer hopper 5a and fertilizer fertilizer that feeds fertilizer for each strip
Are provided. This seedling transplanter 1 is a paddy field
Planting rice seedlings in
Planting vegetable seedlings in the field, not regulated
It can also be applied to seedling transplanters. The configuration of each part of the seedling transplanter 1 will be described below.ToAbout
Will be explained. The traveling vehicle body 2 is driven by a pair of left and right
Front wheels 6.6 and a pair of right and left rear wheels 7.7
The transmission case 9 and the transmission case 9
The engine E is mounted on the rear side, and the rotational power of the engine E
Is the upper part of the transmission case 9 by the belt transmission 10
Once transmitted to the hydraulic pump attached to the
The transmission is operated by a belt transmission 11 that can be operated in a step-shift mode.
It is transmitted into the case 9. And mission case 9
Power is transmitted to the front wheels 6.6 and the rear wheels 7.7
Through a transmission shaft 9a, an intermediate gear case 9b, and a transmission shaft 9c.
And transmitted to the planting section 4. In addition, 12 in the figure is the front wheel 6.
6 is a steering wheel for steering operation, 13 is a pilot seat
The seats 14 are used for the operator to move on the traveling vehicle body 2.
It is a top floor. [0008] The link device 3 includes a frame 8 of the traveling vehicle body 2.
The upper link 15a
15a and the lower links 15b, 15b are rotatably
A vertical link 15c is attached to the rear end of these vertical links.
Are connected. And the lower end of the vertical link 15c
The connecting bearing portion 15c 'projecting rearward from the portion
The connecting shaft 16 'integrated with the planting transmission case 16 at the center of
Connected movably, so that the planting part 4 moves to the left and right
Mounted rotatably. Further, the link device 3 is driven.
Hydraulic cylinder 17 takes the base side to the frame 8
The piston rod side has an upper ring.
15a, and are integrally fixed downward from the base of 15a.
Arm 15a 'is connected to the distal end of the arm 15a' via a spring.
Have been. When this hydraulic cylinder 17 expands and contracts,
The links 15a, 15, 15b, and 15b below are link bases.
Around the support shaft on the side 8a, and the planting section 4 moves up and down.
Swelling. In addition, the hydraulic cylinder 17 is a hydraulic valve 1
8 is controlled. Spare seedling stands are provided on both front and left sides of the running body 2
20, 20 are provided. This spare seedling mounting table 20
A plurality of seedling frames 20b supported by the support 20a
Seedlings are placed on each seedling box, and each seedling frame 20b stores water.
It is shaped like a dish, and the bottom of the seedling box C
The projections 20c supporting the pots C 'from below are integrally formed.
Between the horizontal alignment of the protrusions
Brushes 20d are attached to the entire width of the seedling frame 20b.
Have been killed. When mounting a spare seedling,
Fill the inside with water W and support the seedling box C on the protrusions 20c.
Let The lower part of the seedling box C pot is immersed in water W
The seedlings on the seedling frame before replenishing
Until planting, it came out of the bottom of pot C '...
The roots of the seedlings do not dry and keep the seedlings in good condition
Can be. When replenishing the planting section 4, the seedling box C is moved forward or
Pull it back (left / right direction in FIG. 8B) and take it out.
It is attached to the bottom of the seedling box C at that time
Mud is scraped off by the brushes 20d. others
The seedling box is transferred to the seedling box transfer device 30 as described later.
At this time, the seedling box slides well and transport is performed smoothly. [0010] Also, on the left and right sides of the front of the traveling vehicle body 2,
A line that delineates the course of the traveling vehicle body 2 in the stroke to the field scene
Pull markers 21 are provided so as to be switchable between up and down.
You. The seedling used in the seedling transplanter 1
Box C is a plastic seedling box having flexibility,
The shape is as shown in FIGS. 9 and 10. Sand
And small pots C 'are arranged at predetermined intervals in the left, right, front and rear directions.
Are connected to each other, and the bottom C'b.
Molded into an independent shape. In addition, the longitudinal direction of the seedling box C
The left and right edge portions Ca and Ca along the directions have pots C '.
Square holes Cb for feeding seedling boxes are provided in accordance with the longitudinal spacing.
Have been killed. The bottom C'b of each pot C '...
Cut C 'at which seedling push-out pin 31a can enter from the bottom side
c is provided. Cc is long at the left and right (short direction) center
It is a wide interval part provided toward the hand direction. Each pot
C '... is filled with floor soil, sowed, covered, and raised. This
Seedling box C in which one plant was raised for each pot C '.
Is loaded into the planting section 4 together with the seedling box and
The seedlings are pushed out by the delivery pins 31a and taken out. The planting section 4 has a six-row planting structure, and is provided with a seedling box transport device.
30, 30/30, first seedling removal device 31/31/31,
First seedling transport device 32, 32, 32, second seedling removal device 33
・ 33 ・ 33 、 Second seedling transfer device 34 ・ 34 ・ 34, 6 sets
And so on. A plurality of seedling boxes C are stored in each seedling box transport device 30.
The seedlings are loaded and moved to the seedling pushing position P by the first seedling extracting device 31.
The seedlings n from the two rows of pots C '...
… Are pushed out all at once. The extruded seedlings n are the first
It is held by the seedling holder 32a of the seedling transporting device 32 and the lower front
Conveyed in a locus that draws an arc toward the second seedling removal device 3
At 3, the seedling is dropped onto the second seedling transfer device 34. Withdrawal
The left and right seedlings n...
The left and right halves are separated and fed to the side
The seedlings n ... conveyed to the picking unit are seedling planting devices 35 one by one.
・ It is configured to take 35 and plant it in the field. A center float 36 is provided below the planting section 4.
And a pair of left and right side floats 37
During planting work, these floats do not level the field scene.
I'm gonna slide. Each of these floats 36, 37, 37
In the field, fertilizer ditch is provided in the field scene near the seedling planting position of each line.
Grooves 38 to be formed are attached, and a flat surface is
A U-shaped fertilizer guide 5c with a rear section opening is attached.
And the fertilizer fed from the fertilizer feeding device 5b ...
Fertilizing hose 5d for transferring the fertilizer is connected for each section
I have. The center float 36 detects irregularities in the field scene.
It is also a sensor that outputs
The spool of the hydraulic valve 18 operates in response to the downward movement.
It has become. That is, the center float 36 moves upward.
Then, the hydraulic valve 1 is extended in the direction in which the hydraulic cylinder 17 is extended.
8 is activated, and conversely, when the center float 36 moves down
The hydraulic valve 18 operates in the direction to contract the hydraulic cylinder 17
It is done. Thereby, the planting unit 4 can
It is controlled to maintain a constant height. A total of three seedling box transfer devices 30 are provided at the center and left and right.
Is provided. Each seedling box transport device 30 has
Upper and lower two-stage seedling box supply unit 3 provided in an inclined state
0a ・ 30a and seedling box transfer from the two-stage seedling box supply unit
Merge along the road and convey it downward, and then continue forward and upward in a U-shape
Main seedling box conveying part 30b curved in a shape,
Empty box that extends upward to just below the seedling box supply units 30a
And a transport section 30c.
Empty seedling boxes C ... discharged from above are stacked up and down
An empty box housing frame 30d for housing in a state is provided. this
, The main seedling box transport section 30b ...
It is supported on the upper side by the attached transmission case 16.
Supply of seedling box with base fixed in U-shape of transport unit 30b ...
Seedling box supply units 30a, 30a with unit support frames 30e ...
, An empty box transport section 30c, and an empty box storage frame 30d.
Is held. The upper and lower two-stage seedling box supply sections 30a, 30a
The seedling boxes are two pieces at a time with the longitudinal direction
Placed in series. At the bottom of the seedling box supply section 30a
Are provided with sliding rollers 50
The seedling box C placed on the feeding section is potted on its sliding roller.
Sliding backwards while supporting the lower surface of C '...
It has become. Also, the rear side of the sliding rollers 50
Is provided with a rotating brush 51, and the shaft 5 of the rotating brush is provided.
1a and the shaft 50a of the sliding rollers 50 are a transmission bell.
Tied to each other. Therefore, on the seedling box supply section 30a
When the seedling box slides backwards, it comes with a sliding roller
The rotating brush 51 moves in the same direction in conjunction with the rotation of 50 and 50.
The mud that has rotated and adhered to the bottom of the seedling box CButDropped.
For this reason, the nursery box slips better, and the nursery box can be transported after that.
Transmission is performed well. The seedling box supply sections 30a, 30a
Indicates whether the seedling box is passed through the main seedling box transport section 30b or not.
The seedling box supply shutters 52 that switch to the state
When the upper shutter is in the state of passing through
The lower shutter will not pass and the upper shutter will
When the shutter cannot pass, the lower shutter passes.
It alternates so that Upper row
The shutter 52 is located behind the lower shutter 52.
And the front and rear positions of the upper rotating brush 51 are
Between the shutter 52 and the lower shutter 52.
In the upper seedling box supply section 30a, the rotating brush 51
Mud dropped from the seedling box is placed on the seedling box supply section 30a at the bottom.
Do not fall on the seedling box or the seedlings in that seedling box. Each of the seedling box transport devices 30 has a seedling pushing position.
At the same time, the seedling box C is locked with the
Seedling box feeders 40 and 40 that feed boxes one row at a time
Is provided. The seedling box feeders 40, 40
Left and right transport guide near the seedling pushing position P of the box transport section 30b
Section 30b 'and reciprocate along the seedling box transport path.
Feeding pawls 40a, 40a, and the engaging and disengaging
Stop pawls 40b are provided. The feed claw 40a / 4
0a is an opening provided in the left and right transport guide 30b '
The seedling box C located in the groove,
· Engaged with seedling box feeding square holes Cb ... provided in Ca
From the state, the feed claw moves up and gets over the next square hole Cb ...
And then move down again, so that pots C '
It is configured to transport every minute. The operation of the seedling box feeding devices 40, 40
Seedling box feed drive shaft protruding from each left side of the attached transmission case 16
In conjunction with 40c, the first seedling removal device 31 pushes the seedling.
The push-out pin 31a comes out from the bottom of the pot C '.
Feeding work is performed between the time when it comes out and the next seedling extrusion operation starts.
Move. Also, the feed operation of the feed claws 40a, 40a
Is connected to the seedling box feed drive shaft 40 c of the planting transmission case 16.
Driving plate 40d mounted to rotate integrally
Arm 40 interlocking with the feed claws 40a
e ... with a rod 40f. Each seedling box transport device 30
Crank arms provided on left and right of 30, 30 respectively
40e, 40e '... Are U-shaped for each main seedling box transport section 30b.
Each of the rotating shafts 40g supported through the inside of the shape.
It is attached so that it rotates together. Feeding claw 40a
・ Upward movement of 40a, ie, operation in the direction opposite to the seedling box feeding direction
The seedling box feed cam 45c in the planting operation case 16
It is driven and the lowering of the feed claws 40a, that is, the seedling box
The operation in the feed direction is driven by a spring 40h.
It is provided as follows. Also, each drive plate 40d / 40d
d and 40d respectively have seedling box feed manual levers 41.4
1.41 are integrally mounted. Therefore, the feed drive
Not only the drive rotation of the shaft 40c ...
The seedling box feeder 40 is also fed by the rocking operation of
Let me do. The first seedling extracting device 31 is provided with the seedling box transport device.
Seedlings that are loaded into the devices 30 and are sequentially sent to the seedling pushing position P
From the box C, next to the pot C 'at the seedling pushing position P
Seedling pusher that slides seedlings n ... in pots for each row
This is a device for pushing out with the extension pins 31a. This first seedling
The delivery device 31 projects from each left side of the planting transmission case 16.
The push-out drive shaft 31b is extended via a telescopic rod 31d,
The extruding operation case 31e and the extruding operation shaft 31f are integrally turned.
Connected to a working arm 31g mounted to move
Then, in the pushing operation shaft 31f and the pushing operation case 31e,
A fan-shaped pinion for rotation
Extrusion in which yah 31h is integrally connected with seedling extrusion pins 31a ...
And is engaged with the rack of the operating shaft 31i. Therefore, press
The pushing operation shaft 31i is rotated by the rotation of the extension drive shaft 31b.
Ride is activated. The seedling pushing pins 31a are arranged in the lateral direction of the seedling box C.
Of the same number and the same pitch for
And push out the extrusion holes 31k of the extrusion pin guide 31j.
Pull out and operate, and pot C 'for one row of seedling box C
Pierce through the cut C'c ... at the bottom C'b ... of the seedling n ...
Extrude the floor. Projection of the seedling pushing pins 31a ...
In the retirement operation, the feeding operation of the seedling box feeding devices 40 and 40 is performed.
The seedling box is locked and the seedling holder
When the rudder 32a is located at the seedling pushing position P in a stopped state.
And the next seedling box is moved by the seedling box feeder.
The retraction is completed before the movement starts. 31d 'is a sp
This is a spring case in which the ring 31d ″ is installed. The first seedling conveying device 32 ...
One row of seedlings n ... extruded by the device 31 ...
The rudder 32a is located at the seedling receiving position (indicated by a chain line in FIG. 4).
) And the seedling removal position of the second seedling removal device 33 ...
(Shown by a solid line in FIG. 4). Seedling
The holder 32a is pushed out by the first seedling removal device 31.
-Shaped seedling holding part 3 for receiving each of the seedlings n ...
.. Of the seedling box C conveyed by the seedling box conveying device 30.
The pot C 'is formed in accordance with the position in the left and right direction.
You. The first seedling transfer device 32 includes a planting transmission case.
The first seedling box drive shaft 32b protruding from each right side of the
The drive arm 32c that rotates its body is located on the left side of the seedling box transfer device 30.
Upper and lower two swing arms 3 provided on both right sides
The lower switch of 2d (U, L) and 32d (U, L)
Rotating with the arm 32d (L) and 32d (L)
The swing operation arm 32d 'is connected to the
And linked together. Swing arm 32d (U, L)
The tip of 32d (U, L) is the left and right sides of the seedling holder 32a.
Pivotally attached to support plates 32f, 32f fixed to the ends,
Swing operation with the rotating shaft 32h (U, L) as the rotation axis
Swing arm 32d (U, L)
L) and the support plates 32f and 32f are parallel links.
Is composed. When the drive arm 32c is driven and rotated, the seedling
The rudder 32a forms an arc between the seedling receiving position and the seedling extracting position.
Reciprocate in a drawing locus. Drive arm 32c
The swing arm 32d moves upward due to the dynamic rotation, and the seedling holder is moved.
When the hopper 32a reaches the seedling receiving position, the lower swing arm
32d (L) ・ 32d (L) is the stopper body 32g ・
Stops at 32g. The drive arms 32c are still
Rotate to move the swing arm 32d upward.
However, the telescopic rod 32e extends (the telescopic rod 32e
The spring 32e "in the spring case 32e '
Shrink) swing arm 32d (L) ・ 32d (L)
When stopped by the stopper bodies 32g and 32g
Become. Therefore, swing arm 32d (L) 32d
(L) stops against the stopper bodies 32g and 32g.
The seedling holder 32a is in the seedling receiving position while
The seedlings n which are located and pushed out by the first seedling extracting device 31...
Receive. In addition, an appropriate lower portion of the main seedling box transport section 30b is provided.
Fixed part and lower swing arm 32d (L) ・ 32d
(L), the seedling holder is moved to
Damper 53 which is a buffer means for preventing vibration of the holder
Is provided. This damper 53 has a piston 53
a and the cylinder chamber 53b on the fixed side separated by a
Fill the cylinder chamber 53c on the
Oil passage 53e with a variable throttle valve 53d
It is something. Adjusting means for adjusting the resistance of the damper
The variable throttle valve 53d is a shift lever 5 of the traveling vehicle body 2.
4, the vehicle speed is high (the moving speed of the seedling holder 32a).
The faster the degree, the tighter the throttle and the lower the oil flow.
And the vehicle speed is slow (the moving speed of the seedling holder 32a is slow)
Adjust so that the throttle becomes looser and the oil flow increases
Is done. Thereby, the moving speed of the seedling holder 32a is increased.
The resistance of the damper 53 increases, and the seedling holder
32a is effectively prevented and the seedling holder 32a is moved.
The lower the moving speed, the lower the resistance of the damper 53,
This reduces the load on moving the seedling holder 32a.
You. As shown in FIG.
The par 53 is connected to the upper swing arm 32d (U) and the lower swing arm 32d (U).
It may be provided between the swing arms 32d (L). Ma
Also, instead of dampers, springs etc.
May be used. Spring cushioning means
The seedling holder 32a moves to the seedling removal position.
Is most effective when
You. The first seedling transporting devices 32 ...Seedling in holder
Holds and descends, pushing the seedlings in the descending stroke of the seedling holders 32a ...
The projecting operation (seedling pushing operation) of the extension pins 31a starts.
To push out the seedlings and continue to retract
It is.And the seedling n which the second seedling conveying device 34 has received last time
... just finished transporting to the right and left seedling collecting positions.
The seedling n transported by the first seedling transport device 32 is a second seedling removal device.
33 ... to be transferred to the second seedling transfer device 34 ...
Works as follows. After that, the seedling holder 32a moves up again
And return to the seedling receiving position. [0028]ThisThe first seedling transport device ofAs shown in FIG.
ToCrank arms 60 and 6 that are individually driven
0 and swing link 61, swing arm 32
d (U) ・ 32d (L) actuated, seedling holder
-32a moves up and down in a figure-eight locus.
ing. At the seedling receiving position (seedling pushing position P), the seedling
The rudder 32a performs continuous motion without stopping temporarily.
The vibration of the seedling holder 32a at the seedling receiving position is suppressed.
The seedlings can be maintained in an appropriate state. Also,
After the seedlings are removed at the seedling removal position, the seedling holder 32a is
Since the seedling holder 32a moves upward, the seedling holder 32a
n ... (especially leaves) without seedling feed belt
The arrangement of the seedlings n passed on 34a
Absent. Furthermore, the position of the seedling holder 32a when dropping the seedlings
It can be brought close to the seedling feed belts 34a, 34a.
Real seedlings can be delivered. The second seedling removal device 33 is the first seedling transfer device 3
3 move to the seedling removal position, the seedling holder 32
The seedlings n ... held in the seedling holding portions 32i ...
The second seedling conveying device 33 is extracted by the extraction tool 33a.
This is a device for dropping on the seedling feed belts 34a.
The seedling extractors 33a are formed in a comb shape and project downward.
Each of the seedling extraction parts 33a '... to be moved to the seedling extraction position
In each seedling holding part 32i ... of the seedling holder 32a ...
Receiving the seedlings n ... which are held, only the seedling holders 32a ...
It is provided so that the seedlings n... Ma
The seedling extractors 33a are located on the left side of the planting transmission case 16.
Unitary rotation with the drive shaft 31b of the first seedling removal device protruding into the part
Up and down by the cam disk 33b ...
It is provided to move. That is, seedling extraction tool 3
The base of 3a is integrated with the rotating arm 33c via a connecting member.
The pivot arm is pivotally attached to the pivot shaft 33d.
It is currently installed. Pin 33e on the rotating arm 33c
The pin 33e is fixed to the cam disk 33b.
The spring 33f that urges against the
Attach to the arm 33c. Thereby, the seedling extraction tool 33
As soon as a ... is extracted from the seedling holder 32a ...
The seedlings of the second seedling transfer device 33 are moved down by the cam mechanism.
Acts to forcibly drop onto feed belts 34a
I do. The seedling extraction tool 33a has a floor for the extracted seedlings.
A step 33a "for holding the upper side is formed. The second seedling transfer device 34 is a second seedling removal device.
The seedlings n ... of one horizontal row extracted by 33 ... are sent.
Belts 34a, 34a ...
The seedlings are transferred to the seedling picking positions S, S,.
Device. The second seedling transfer device 34 includes a
Drives that project to the rear side of the frame 42 and rotate in opposite directions
Drive rollers 34c and 34c are integrated with shafts 34b and 34b
It is connected to rotate, and the drive roller and the left and right inner
Seedlings are provided on the rotatably supported driven rollers 34d and 34d.
Wrap the feed belts 34a, 34a to feed the right and left seedlings.
The upper surfaces of the belts 34a
It operates to move. In addition, seedling feeding
The outer peripheral surface of the belt 34a has multiple
.. Are provided, and the seedlings n.
a '... between the left and right of the second seedling removal device 33
It is dropped and transported. Seedling feed belt 34a / 3
The rotation operation of 4a is performed when the seedling implanting devices 35, 35
In accordance with the timing to take seedlings one by one from SS
To the seedling collecting position. The seedling implantation device 35 is a second seedling transfer device 34
The seedlings n ... conveyed to the seedling collecting position S ... by ... are taken one by one.
It is a device that takes it and plant it in the field. This seedling implanter
A planting transmission 35 extends rearward from the left and right transmission frames 42.
Attach to the left and right sides of the moving frame 43
Equipped with a cam body that is fixed so that it cannot rotate, and the case side is planted drive
Two seedlings are placed in a rotating case 35b that rotates integrally with the driving shaft 35a.
It is configured to include the implantation rods 35c. Two
Of the seedling implantation rods 35c and 35c draws a closed loop locus T
Move and alternately plant seedlings in the field. The seedling feed belt 3 of the second seedling transfer device 34
The seedlings 4a and 34a are set at the seedling picking position S at the end of the belt.
It is dropped into the girder seedling receiving portions 35d. Seedling receiving
The portions 35d and 35d are plate-shaped planting guides 3 arranged on the left and right.
5e ・ 35e ・ 35e ・ 35e
And spread the guide plate spacing of the planting guide to the left and right,
I have to take it. Seedling receiving part 35d ・ 35d
The seedlings received by the seedlings 35 are moved from above.
b ・ 35b received at the tip of the planting guide 35e ・
It moves between 35e, and seedlings are planted in the field. Next, the transmission mechanism of the planting section 4 will be described.
I do. Transmission shaft 9c from transmission case 9 of traveling vehicle body 2
An input provided at the input section of the left and right transmission case 42 via
Power is input to the force shaft 42 '. Bebe from input shaft 42 '
To the planting transmission shaft 42 'via the gears 42'a and 42'a.
The transmission, the planting transmission case 16 of each section and the planting transmission
The power is transmitted to the transmission mechanism in the arm 43. Planting transmission case 1
6, the planting transmission shaft 42 a to the gear 42 b and the gear 4
4a, and transmitted to the extrusion drive shaft 31b via the clutch 45b.
Move. The pushing drive shaft 31b is rotated integrally with the pushing drive shaft 31b.
A seedling box feed cam 45c is assembled, and
B of the arm 46 assembled so as to rotate integrally with the driving shaft 40c.
Roller 46a abuts to rotate the feed drive shaft 40c.
You. A non-constant speed transmission 4 from the shaft end of the pushing drive shaft 31b
7 to the first seedling transport drive shaft 32b
I have. Also, from the planting transmission shaft 42a to the bevel gear 42c ...
· Drive shaft 34b of second seedling transfer device 34 via 48 ...
・ Transmits to 34b ... Further, from the planting transmission shaft 42a
Sprocket 42d, chain 42e, and planting device
Transmitted to the planting drive shaft 35a via the sprocket on the side
Then, the planting devices 35 are driven. 45b '...
Clutch actuating pin for turning on and off the clutch 45b
It is. [0034] As is apparent from the above description, the present invention
Seedling transplanter was removed from each pot of the seedling box
The seedling holder that transports seedlings to the specified seedling removal position is lowered.
Seedlings are delivered in the middle of the process, and the seedling holder after delivery
Moves to the top of the trajectory during the descending stroke and rises
And the dislocation of the seedlings caused by hooking the seedlings
It has become possible to prevent this. Also as above
In such a configuration, the trajectory at the time of ascending crosses the trajectory at the time of the descending
The seedling holder when transferring the seedlings
Close to the transfer device to prevent the posture from being disturbed due to the falling of seedlings
It is also possible to do.In addition, the seedling holder returns
Move along the leaves of the seedling.
It can be guided to the recess and the seedling from the first seedling removal device
Can be reliably received. In addition, seedling e
Since the rudder moves with a roughly eight-shaped movement trajectory,
The vibration of the seedling holder is suppressed, and the seedling is held in an appropriate state.
Can be

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a seedling transplanter. FIG. 2 is a side view showing a part of a planting portion. FIG. 3 is a rear view showing a part of the planting section. FIG. 4 is a side view showing an operation configuration of the first seedling transport device. FIG. 5 is a sectional plan view showing a transmission configuration of a planting section. 6A is a plan view and FIG. 6B is a side view of a seedling box supply unit of the seedling box transport device. FIG. 7 is a sectional view of a damper. FIG. 8A is a front sectional view of the seedling frame of the spare seedling mounting table, and FIG. FIG. 9 is a plan view of a seedling box. FIG. 10A is a side view of the seedling box, and FIG. FIG. 11 is a side view in which a part of the first seedling transfer device is omitted . FIG. 12 is a side view showing the configuration of the first seedling transport device. [Description of Signs] C Seedling box 1 Seedling transplanter 2 Running body 3 Link device 4 Planting unit 30 Seedling box transfer device 31 First seedling removal device 32 First seedling transfer device 32a Seedling holder 33 Second seedling removal device 34 Two seedling transfer device 35 Seedling implantation device 53 Damper (buffer means) 53d Variable throttle valve (adjustment means)

──────────────────────────────────────────────────続 き Continuing from the front page (72) The inventor, Manabu Namoto, 1-chome, Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. Technical Department Co., Ltd. (72) Inventor, Toshimi Fukushima 1 Eighth, Tobe-cho, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Technical Department (72) Inventor Shinichiro Yano 1-Yachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Technical Department (56) References JP-B-58-51722 (JP, B1) JP 4-10725 (JP, Y2) (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(1) A first seedling removing device for pushing out seedlings from each pot of a seedling box in which a large number of pots accommodating one plant at a time are arranged vertically and horizontally, and the first seedling removing device. moves downward to draw an arcuate locus seedlings holder receives a push out seedlings were by a first seedling transfer device for transferring the seedlings to a predetermined seedling pick-up position, the seedling pick-up position by said first seedling conveying device A second seedling removal device that removes the seedlings transported from the seedling holder, and a second seedling transport device that receives the seedlings removed by the second seedling removal device and transports the seedlings to a seedling removal position of the seedling implantation device. In the provided seedling transplanter, the seedling holder of the first seedling transfer device ,
A concave seedling receiving the seedlings extruded by the first seedling removal device
After removing the seedlings at the seedling removal position.
In the return stroke, it moves to the upper side of the locus of the descending stroke and moves
In the middle of the return stroke, it intersects with the path of the descending stroke,
Seedling pushing position where the first seedling removing device pushes seedlings from a seedling box
To move from the leaf side of the extruded seedling.
A seedling transplanter characterized by being configured to move up and down while drawing a trajectory in the shape of a triangle.