JP3531326B2 - Seedling transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] TECHNICAL FIELD The present invention relates to a method for accommodating seedlings one by one.
Seedlings grown in seedling boxes with a large number of pots
Load the entire box into the planting area and remove the seedlings from each pot in the seedling box.
The present invention relates to a seedling transplanter that projects out of a field. [0002] 2. Description of the Related Art A typical seedling transplanter of this kind is a seedling transplanter.
From the hole or cut formed in the bottom of each pot of the box
The rod-shaped seedling extruded body is penetrated into the pot and the floor of the seedling is potted.
Seedlings are pushed out of the pot and the seedlings are taken out to the upper opening side of the pot
A take-out device, and a bed of seedlings taken out by the seedling take-out device
Part is held by a seedling holder with a concave cross section,
A first seedling transfer device that moves downward to transfer seedlings;
The seedlings conveyed by the feeder are conveyed in the horizontal direction and
And a belt-type second seedling transfer device that supplies the seedlings to
Have. Also, when holding the seedlings,
Hooks to prevent the seedlings from falling off during transportation.
Some are provided in the ruder. [0003] SUMMARY OF THE INVENTION
For the next one, the locking claw is interlocked with the operation of the first seedling transport device.
The seedlings were kept in the seedling holder because
Make sure that the
It is difficult to remove, and the seedlings taken out by the seedling removal device
Sometimes came off the seedling holder and fell off. The present invention
Has the task of preventing such dropout accidents.
You. [0004] [MEANS FOR SOLVING THE PROBLEMS]
The present invention has the following configuration. That is, the present invention
The seedling transplanter according to
Seedling boxes arranged side by sideSeedling box transfer device for transferring seedlings, and the seedlings
One row at the seedling pushing position from the seedling box sent by the box carrier
Push out the seedlings in the divided pots with a seedling extrusion pin and take out
A seedling removing device, and a horizontal line removed by the seedling removing device.
Rows of seedlings are received by the seedling holder, held and transported downward
A first seedling transfer device, and the first seedling transfer device
Receiving the seedlings held in the seedling holder
Pull out seedlings by stopping and passing only through the seedling holder
Seedling extraction device to be taken out, and the laterals extracted by the seedling extraction device
One row of seedlings is received on the seedling feed belt and transported to the seedling picking position
Seedling pick-up by the second seedling transfer device to be
Seedlings that have been transported to a location are taken one by one and planted in the field
A seedling transplanter equipped with a planting device,
The device starts the seedling pushing operation of the seedling pushing pin of the seedling removal device.
Seedling holder stops at the seedling receiving position before
Configure to start moving down when retraction is completed
At the same time, the seedlings being transported fall into the first seedling transport device.
Protrude into the seedling holder of the seedling holder so that
A locking claw for locking, and a claw shaft integrally attached with the locking claw
And push the locking claw toward the side that protrudes into the seedling holding section.
And a roller that supports the roller and operates integrally with the pawl shaft.
And a roller mounting arm, and a roller
Moving arm and interlock mechanism for operating the roller operating arm
The seedling holder is positioned at the seedling receiving position at the upper end of the stroke.
The roller operation arm restricts the position of the roller
Make sure that the nails do not protrude into the seedling hold,
Roller operation through the interlocking mechanism by the seedling pushing operation of
The arm releases the regulation of the roller and the locking claw is the seedling holding part
And the seedling holder is at the lower end of the stroke.
The seedling box transport device
The cam plate fixed to the roller regulates the position of the roller and
Does not protrude into the seedling holdConfigured to
It is characterized by having. [0005] 1 to 8 show one embodiment of the present invention.
An example is shown. This seedling transplanter 1 is a traveling type
A 6-row planting section on the rear side of the vehicle body 2 via the link device 3
4 is mounted so as to be able to move up and down.
The fertilizer hopper 5a of the side fertilizer 5 and the fertilizer
A fertilizer feeding device 5b... For feeding the fertilizer is provided. This
Seedling transplanter 1 is for planting rice seedlings in paddy fields
However, the present invention is not limited to this.
And can be applied to a seedling transplanter for planting vegetable seedlings.
is there. The configuration of each part of the seedling transplanter 1 will be described below.
Will be described. The traveling vehicle body 2 includes a pair of left and right
Steering front wheels 6 and a pair of right and left rear wheels 7
7, a transmission case 9 on the front side of the frame 8,
The engine E is mounted on the rear side.
The force is applied to the transmission case 9 by the belt transmission 10.
Once transmitted to the hydraulic pump attached to the part, from there,
Mission by belt transmission 11 with continuously variable operation
Is transmitted into the case 9. And the mission case
When the power in 9 is transmitted to the front wheels 6.6 and the rear wheels 7.7
Transmission shaft 9a, planting clutch case 9b, transmission shaft 9
The power is transmitted to the planting section 4 through the c. 12 in the figure is before
A handle for steering the wheels 6, 6; 13 is a pilot
Seat 14 when the operator moves on the traveling vehicle body 2
It is a step floor. 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 lower link 15a, 15a, 15b, 15b
The planting section 4 rotates around the support shaft on the side of the base 8a and moves up and down.
It has become. The hydraulic cylinder 17 is a hydraulic valve
The operation is controlled by 18. [0008] At the left and right sides of the front of the traveling vehicle body 2, seedlings for replenishment are provided.
Are provided.
In addition, on the front left and right sides of the traveling vehicle body 2,
A drawing marker for drawing the course of the traveling vehicle body 2 on a field scene
Reference numerals 21 and 21 are provided so as to be switchable. The seedling used in the seedling transplanter 1
Box C is a plastic seedling box having flexibility,
The shape is as shown in FIG. 11 and FIG. sand
That is, 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 output pins 31a and taken out. The planting section 4 has a six-row planting structure, and one for every two rows.
Seedling box transport devices 30/30/30 provided in pairs,
Seedling removal device 31 ・ 31, first seedling transfer device 32.3
2, 32, seedling extraction device 33, 33, 33 and second seedling transport
Devices 34, 34, 34, and seedlings provided for each strip
And the like. Each of the seedling box transporting devices 30 has a plurality of seedling boxes C.
Is loaded, and the seedling box C is transported to the seedling pushing position P ...
The seedlings n ... from the horizontal row of pots C '... to the seedling removal devices 31 ...
It is pushed out all at once. The extruded seedlings n are the first
The machine held by the seedling holders 32a of the seedling transfer devices 32 ...
Conveys downward in a plane parallel to the body's direction of travel and perpendicular to the ground
And is dropped onto the second seedling conveying device 34. without
The dropped seedlings n are removed by the second seedling transfer device 34.
It is divided into two halves on the right and left sides,
The seedlings n ... which are transported to the seedling collecting section are planted with seedlings one by one.
３５35, 35 ... are taken and planted in the field
ing. 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.
The forming 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. Further, the center float 36 is provided with a concave in the field scene.
The center float 3 is also a sensor that detects protrusions.
The spool of the hydraulic valve 18 is actuated in accordance with the up and down movement of 6
It has become so. That is, the center float 36
When the hydraulic cylinder moves upward, the hydraulic
The lube 18 is actuated, and the center float 36 moves downward.
Then, the hydraulic valve 18 is moved in the direction of contracting the hydraulic cylinder 17.
Is activated. As a result, the planting unit 4 can
Is controlled to maintain a constant height. The seedling box transporting device 30 is tilted upward and downward.
Two upper and lower seedling box supply sections 30a provided in an inclined state
30a and the seedling box transport path from the two-stage seedling box supply section.
Flows downward and then curves upward in a U-shape
Main seedling box transport section 30b, and the subsequent seedling box supply
Empty box transporting section 3 extending upward just below sections 30a
0c, and is discharged from the outlet of the empty box transporting section 30c.
Empty seedling boxes C to be put out ...
An empty box housing frame 30d is provided. Carry these seedling boxes
The main seedling box transport section 30b is provided with each planting transmission cable.
Are supported on the upper side by a base 16.
0b... Seedling box supply unit support
The seedling box supply units 30a, 30a ..., empty boxes are transported by the frame 30e.
The feeding section 30c and the empty box housing frame 30d are supported.
You. 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 part of the seedling box supply units 30a, 30a
To pass the seedling box to the main seedling box transport section 30b
The seedling box supply shutters 52 that switch to the state
Each is installed, and the upper shutter is in the state of passing through
Is in a state where the lower shutter cannot pass through, and the upper shutter
When the shutter is not passing, the lower shutter passes.
It alternates to be in a state. Each of the seedling box transfer devices 30 has a seedling pushing position.
Lock the seedling box C with P and at the appropriate timing
Seedling box feeder 40 that feeds one row of the pot at a time
ing. The seedling box feeding device 40 includes a main seedling box transfer section 30b.
Provided on the conveyance guide portion 30b 'near the seedling pushing position P
The right and left feed claws 40 reciprocate along the seedling box transport path.
a · 40a and locking pawls 40b ·
40b. The claw portion of the feed claw 40a
After entering the opening provided in the transport guide portion 30b ',
Provided at the edge Ca · Ca of the seedling box C located in the groove
From the state where it is engaged with the square holes Cb
The claw moves upward, gets over the next square hole Cb, Cb and engages
Move down again, so that pots C '...
It is configured to send. The operation of the seedling box feeding device 40 is performed by planting transmission.
Seedling box feed drive shaft 40c protruding from each left side of case 16
And the seedling removal device 31 extrudes and pushes the seedling.
After the pin 31a comes out of the bottom of the pot C '...
The feeding operation is performed until the next seedling pushing operation starts. Ma
In addition, the feeding operation of the feeding claws 40a, 40a
So as to rotate integrally with the seedling box feed drive shaft 40c of the
Drive plate 40d and feed pawl 40a
A rod 40f is attached to a crank arm 40e interlocking with 40a.
Connect with. Provided on each side of each seedling box transport device 30
Crank arms 40e and 40e 'are transported by each main seedling box.
One by one that is supported through the U-shaped inside of the feeding part 30b
Is mounted so as to rotate integrally with the rotary shaft 40g of the
You. Upward movement of the feed claws 40a, 40a, ie, how to feed the seedling box
The operation in the opposite direction is performed by feeding the seedling box in the planting operation case 16.
Driven by the cam, the feed claws 40a
That is, the operation in the seedling box feed direction is performed by the spring 40h.
It is provided to be driven. In addition, each drive plate 4
0d, the seedling box feed manual lever 41 is integrated with each
Installed, only the drive rotation of the feed drive shaft 40c
Not by the swing operation of the seedling box feed manual lever 41
The seedling box feeder 40 is also fed. The seedling removal device 31 is provided with the seedling box transport device 30.
From the seedling box C, which is loaded into the seedlings and sequentially sent to the seedling pushing position P,
The pot C 'at the seedling pushing position P
Seedling push pin that slides on the floor of seedling n ... in the pot
31a and extrude the seedlings n.
... A device to take out to the side. This seedling removal device 31
Extrusion drive shaft 31b protruding from the left side of transmission case 16
However, the extruding operation case 31e is extended through the telescopic rod 31d.
Is attached so as to rotate integrally with the extrusion operation shaft 31f.
Connected to the operating arm 31g that is
Is provided so as to rotate integrally with the outgoing operation case 31e.
The fan-shaped pinion gear 31h has seedling pushing pins 31a ...
Meshes with the rack of the push-out operation shaft 31i that is integrally connected to the
ing. Therefore, the extrusion operation is performed by the rotation of the extrusion drive shaft 31b.
The driving shaft 31i slides. 31
d 'is a spring case that houses the spring 31 "
It is. The seedling pushing pins 31a...
The same number and the same pitch are provided for the pots C ',
Protrude through the extrusion holes 31k of the extrusion pin guide 31j.
The bottom of the pot C 'for one row of the seedling box C
Penetrate the break C'c ... of C'b ...
Extrude. Projecting / retracting operation of the seedling pushing pins 31a ...
Indicates that the seedling box feeding device 40 has completed the feeding operation and
The seedling holder 32a of the first seedling transfer device 32 is
When it is located at the seedling pushing position P in a stopped state, it protrudes,
And before the next seedling box movement by the seedling box feeder is started
Is completed. The first seedling transfer device 32 is provided with the seedling removal device 3.
One row of seedlings n...
2a receives the seedlings and the seedling holder 32a transfers the seedlings to the aircraft.
Transport downward in a plane parallel to the line direction and perpendicular to the ground, and
The seedlings held here are extracted and the second seedling transport device 34
This is a device that is arranged on the seedling feed belts 34a.
The first seedling transport device 32 is located on the right side of the planting transmission case 16.
That rotates integrally with the first seedling transport drive shaft 32b protruding into the
The moving arm 32c is provided on both left and right sides of the seedling box transport device 30.
A pair of upper and lower swing arms 32d (UL)
The lower swing arm 32 of 32d (UL)
d (L) and 32d (L) via telescopic rod 32e
Dynamically connected, each swing arm 32d (UL) 32
d (UL) fixed to the left and right ends of the seedling holder 32a.
Pivotally supported on the supporting plates 32f to be mounted.
You. When the drive arm 32c is driven and rotated, the
A pair of upper and lower swing arms 32d constituting a link
(U ・ L) ・ 32d (U ・ L) swings up and down and beyond
Ends are supported via support plates 32f and 32f.
Seedling holder 32a reciprocates up and down in an arc trajectory
You. Seedling receiving position where seedling holder 32a is located at the upper end of the stroke
When moved to the lower position, the lower swing arm 32d
(L) ・ 32d (L) becomes stopper body 32g ・ 32g
Hit and further upward movement are regulated. Drive arm 32
c still rotates and moves the swing arm 32d upward.
The telescopic rod 32e shrinks (the telescopic rod
The spring 3 in the spring case 32e 'of the 32e
2e "shrinks) Swing arm 32d (L) 32d
(L) is stopped by the stopper bodies 32g and 32g.
Will remain. Therefore, swing arm 32d (L)
32d (L) hits stopper body 32g ・ 32g
While in the stopped state, the seedling holder 32a receives the seedling.
Position, while being pushed out by the seedling removal device 31.
Received seedling n ... The first seedling conveying device 32 includes a seedling pushing pin 31a.
… Before the projecting operation (seedling pushing operation) starts, the seedling holder
32a stops at the seedling receiving position and pulls the seedling pushing pins 31a.
When the burring operation is completed, it starts to move downward. And the second seedling
The right and left seedling planting devices 3 transfer the seedlings n.
When it has just been transported to the 5.35
The seedlings n ... transported by the single seedling transporting device 32 are transferred to the seedling extracting device 33.
It operates so as to be transferred to the second seedling transport device 34.
You. After that, the seedling holder 32a moves up again to receive the seedlings.
Return to place. In the seedling holder 32a, the seedling removal device 31
Receive the one row of seedlings n ...
The seedling holding units 32h are transferred by the seedling box transfer device 30.
Of the pot C 'of the seedling box C
It is formed. This seedling hold part 32h ...
It is open and has a concave shape with a cutout on the upper side.
At the bottom, a member engaged with the floor na of the held seedlings n.
Are provided. The locking claws 32i ...
And is integrally attached to the claw shaft 32j.
Attach one end to the working spring mounting arm 32k
Projecting into the seedling holding part by the spring 321
Is biased to the side. A roller is attached to the claw shaft 32j.
The arm 32m is provided so as to operate integrally, and its arm
A roller 32n is rotatably supported by the roller 32m.
On the other hand, a seedling holder 32a is located on the side of the seedling box transport device 30.
Above the roller 32n when it is at the top
Roller operating arm 32o is provided rotatably, and its roller
The operation arm 32o is connected to the first interlock arm 32p and the second interlock arm
Arm 32q, first interlocking rod 32r, third interlocking arm 3
2s, fourth interlocking arm 32t, and second interlocking rod 32
of the seedling push-out pins 31a.
It is designed to be linked with the protruding operation. That is, the spring 32v is normally pulled.
The interlocking mechanism and the roller operating arm 32s
Is at the position of the solid line in FIG. 5, and the seedling holder 32a is
When located at the end, the roller operating arm 32o is
n to control the position of n
32h... Do not protrude. And the seedling push
The output pin 31a completely pushes the seedling from the pot C 'of the seedling box.
Protruding just before starting (about 5 mm from the end of the stroke)
Then, as shown by a chain line in FIG.
Is pulled backward, and the regulation of the roller 32n is released.
Then, the locking claws 32i project from the seedling holding portions 32h.
And the floor na of the seedlings n ... pushed into the seedling holding part
Lock to ... The projecting operation of the locking claws 32i...
The seedling pushing pin 3 is linked with the operation of the pins 31a.
The timing of the seedling pushing by 1a ... and the locking claws 32i ...
The projecting timing can be easily adjusted,
To hold the seedlings pushed into the
Can be. As a result, the seedling holder 32a
Seedlings are prevented from dropping from
It can be delivered to the sending device 34. The seedling box transport device 30 includes a cam plate.
32w is fixed and the seedling holder 32a is below the stroke
When moving to the position just before the seedling extraction position at the end,
32n is pushed down by the cam plate 32w.
And the locking claws 32i are disengaged from the seedling holding portions 32h,
The locking of the seedlings is released. The seedling extracting device 33 includes a first seedling conveying device 32.
When moving to the seedling extraction position, each of the seedling holders 32a
Extract the seedlings n ... held in the seedling holding parts 32h ...
Then, the seedling feed belts 34a and 34 of the second seedling transport device 34
It is a device to drop on a. Seedling extraction device 33 is the seedling extraction position
Each seedling holding part 3 of the seedling holder 32a that has been moved to the place
The seedling holder 3 receives the seedling n ... held in 2h ...
Extraction rod 33a for extracting seedling n by passing only 2a
... and the seedling n ... pulled out from the seedling holder 32a
And a seedling hit 33b. The second seedling transfer device 34 is connected to the seedling extracting device 33.
One row of seedlings removed from seedling holder 32a
n on the seedling feed belts 34a
In the seedling picking position SS of the left and right seedling planting devices 35
It is a device for conveying. This second seedling transfer device 34
Projects to the rear side of the transmission frame 42 and rotates in opposite directions
Drive rollers 34c and 34c on the drive shafts 34b and 34b
And the drive roller and its left and right
Driven rollers 34d, 34d rotatably supported inside
Wrap the seedling feed belts 34a
The upper surfaces of the seedling feed belts 34a, 34a are both left and right outer
It operates to move to the side. Also seedlings
On the outer peripheral surface of the feed belt 34a, a line is formed along the rotation axis direction.
Are provided, and the seedlings n ...
34a '... between the left and right of the seedling extraction body 33
The seedlings are dropped from the seedling holder 32a and transported. Seedling
The rotation of the feed belts 34a, 34a
5.35 is picking seedlings one by one from seedling picking position SS
The seedlings n ... are transported to the seedling collecting position in time
You. The seedling feed belt 34a has a bottom
Mud removing brush 34e for removing mud adhering to seedling feed belt
Is provided. This mud brush 34e has a drive shaft
34b and the moving direction of the seedling feeding belt 34a.
Since it is configured to rotate at right angles, the protrusion 34
No mud is left between the a 'and the projection 34a'.
You can drop it all. The seedling planting device 35 is connected to the second seedling conveying device 34.
The seedlings n ... conveyed to the seedling collecting position S are taken one by one.
It is a device that is planted in a field. This seedling planting device 35
Is a planting transmission frame extending rearward from the left and right transmission frame 42.
Attach to the rear left and right sides of the frame 43
Equipped with a cam body that is fixed so that it cannot rotate, and the case side is planted drive shaft
Two seedlings are implanted in a rotating case 35b that rotates integrally with 35a.
It is configured to include rods 35c. Two seedlings
The tip of the implantation rod 35c draws a closed loop locus T
Move and alternately plant seedlings in the field. At the time of initial seedling replenishment, the seedling box transport devices 30
After replenishing the seedling box C ..., the seedlings
The planting section 4 is operated idle until it is lined up. Conventionally, operator
Monitors this idle operation, and the seedlings are placed on the seedling feed belt 34a.
To turn on and off the transmission to the planting section 4
The clutch 55 was disengaged. However, planting
If the timing to cut off the switch 55 is wrong,
Planting is not performed immediately or planted during idling.
It may start. So this seedling transplant
The machine 1 automatically stops the idle operation at an appropriate timing
An initial seedling automatic setting device is provided. This initial seedling automatic setting device is used for initial seedling automatic setting.
An automatic set switch 56 for switching to a set mode,
A box for counting the number of times the feed claws 40a and 40a are fed.
The feed counter 57 and the count number of the box feed counter
Control device 58 for turning on and off the planting clutch 55 based on the
And supply seedling boxes C to the seedling box transfer devices 30.
Set the automatic set switch 56 to the initial seedling automatic set mode.
Then, the count number of the box feed counter 57 becomes a predetermined value (the seedling is
The feed claw 40a until it is lined up on the seedling feed belt 34a ...
40a), the planting clutch 5
5 is automatically cut. This allows
Inconvenience is prevented and the burden on the operator is reduced.
It is. FIGS. 9 and 10 show the first seedling transport device 32.
2 shows a first seedling transfer device different from the first. This first seedling transfer device 6
0 is the seedling hoe of the seedling holder 60a in the same manner as in Example 32.
The claw shaft 6 has a common locking claw 60i at the bottom of the
0j. Integrated with claw shaft 60j
The tip of the moving first arm 60k and the seedling holder 60a
Attached to the mounting metal 60l provided behind
One end of the second arm 60m is connected via the first rod 60n.
And the first arm 60k is attached to the
To tension spring 60o stretched between metal 60l
Therefore, it is urged backward. The other end of the second arm 60m
A roller 60p is rotatably supported by the portion. Ma
The third arm is attached to the support shaft provided on the left support plate 60f.
60q is rotatably mounted on the third arm 6q.
0q is the fourth arm 60s attached to the rotating shaft 60r and the fourth
They are connected via two rods 60t. Rotating shaft 60r
Is provided integrally with a pressing plate 60u.
The bolt 60u 'attached to the tip of the 60u
Arm attached to a 60l
It is in contact with the bar 60v. The fourth arm 60s is torque
It is urged in a predetermined direction by the spring 60w
Thus, the bolt 60u 'always pushes the lever 60v.
ing. A cam 60x is provided on the spindle of the second arm 60m.
Is mounted on the cam 60x.
The tip of the claw 60y that operates integrally with the
You. On the other hand, on the seedling removal device 31 side, a seedling pushing pin 31a.
An integrally operated extrusion plate 60z is provided, and
31a ... completely pushes seedlings out of pot C '...
When the extrusion plate 60z projects to the third
Abutting on the projection 60q 'of the
When the protrusion 31a projects, the extrusion plate 60z
q 'so that the third arm 60q rotates rearward.
It has become. Therefore, the seedling n is moved by the seedling pushing pins 31a.
... is almost completely pushed into the seedling holding part 60h.
And the third arm 60q pivots rearward, thereby
The tip of the bar 60v comes off the engaging portion of the cam 60x.
Then, the first arm 60k is operated by the action of the tension spring 60o.
Rotating backward, the locking claws 60i ...
The seedlings n protruding into the seedling holding portion and pushed into the seedling holding portion.
To the floors na. Projection work of this locking claw 60i ...
The movement is linked to the operation of the seedling pushing pins 31a.
Timing of pushing out seedlings by pushing pins 31a and locking claws
It is easy to match the timing when 60i ... protrudes.
The seedlings that have been pushed into the seedling holding part 60h
Can be held. As a result, seedling holders
The seedlings are prevented from dropping from the hopper 60a, and
Can be delivered to the second seedling transport device 34. Also, plantingBiographyThe cam frame is attached to the moving frame 43.
And the seedling holder 60a is
If you move to the position just before the seedling extraction position at the lower end,
Roller 60p is pushed up by the cam plate 61.
When the second arm 60m rotates to the original position,
And the locking claws 60i are disengaged from the seedling holding portions 60h,
The locking of the seedlings is released. [0035] As described above, the seedling according to the present invention
The transplanterThe first seedling transfer device is a seedling pushing pin of the seedling removal device.
The seedling holder is in the seedling receiving position before the
Stops and moves down when the seedling push-out pin is retracted.
The seedlings being transported fall off to the first seedling transport device.
Do not protrude into the seedling holder of the seedling holder to prevent
Locking claw for locking the locking claw, and a claw shaft integrally attached with the locking claw
And push the locking claw toward the side that protrudes into the seedling holding section.
Pulling and a roller that supports the roller and operates integrally with the pawl shaft
And a roller mounting arm on the seedling box transfer device side.
A seedling holder at the top of the process
When located in the receiving position, the roller operating arm
Position is restricted so that the locking claw does not protrude into the seedling hold
The interlocking mechanism is activated by the operation of pushing out the seedling pushing pin.
The roller operation arm releases the regulation of the roller and the locking claw
Is projected into the seedling holding part,
Rollers that regulate the operation of the locking claws allow the
Seedlings can be reliably held, and holders
Seedlings can be prevented from falling off during the migration of
Was.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a seedling transplanter. FIG. 2 is a rear view of the planting section. FIG. 3 is a left side view showing a part of the planting portion. FIG. 4 is a right side view showing a part of the planting portion. FIG. 5 is a side view showing an engaging and disengaging mechanism of a locking claw. 6A and 6B are cross-sectional views of a seedling holder showing different states. FIG. 7A is a side view and FIG. 7B is a bottom view of the seedling feeding belt. FIG. 8 is a block diagram of an initial seedling automatic setting device. FIG. 9 is a side view showing a different example of a locking claw engaging / disengaging mechanism. 10 (a) and 10 (b) are cross-sectional views of the seedling holder showing different states of the engaging and disengaging mechanism of the locking claw shown in FIG. FIG. 11 is a plan view of a seedling box. FIG. 12 is (a) a side view and (b) a front view of a seedling box. [Description of Signs] 1 seedling transplanter 2 traveling vehicle body 3 link device 4 planting unit 30 seedling box transporting device 31 seedling extracting device 31a seedling pushing pin 32 first seedling transporting device 32a seedling holder 32i locking claw 34 second seedling transporting Device 35 Seedling plant

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hideo Iseki 1 Eighth-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor: Shinichiro Yano, 1-Yakura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. 56) References JP-A-7-184419 (JP, A) JP-A-58-190303 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/00-11/02 303 A01C 11/02 350-367

Claims (1)

(1) A seedling box transfer device for transferring a seedling box in which a large number of pots for storing seedlings one by one are arranged in rows and columns, and the seedling box transfer.
From the seedling box sent by the device, one row each at the seedling pushing position
Seedlings in the pot are extruded with a seedling extrusion pin and removed.
Ejection device and a row of the row taken out by the seedling extraction device.
The first to receive seedlings in the seedling holder, hold and transport them downward
The seedling transfer device and the first seedling transfer device move to the seedling extraction position.
Catch the seedlings held in the moving seedling holder
Seedlings extracted by passing only through seedling holder
Extraction device and one horizontal row extracted by the seedling extraction device
Of receiving the seedlings on the seedling feed belt and transporting them to the seedling collecting position
The second seedling transfer device and the second seedling transfer device move to the seedling collecting position.
Seedling planting to take the transferred seedlings one by one and plant them in the field
The first seedling transfer device,
Before starting the seedling pushing operation of the seedling pushing pin of the seedling removal device
The seedling holder stops at the seedling receiving position and
When it is configured to start moving down when the
In addition, the seedlings being transported do not fall into the first seedling transport apparatus.
Projecting into the seedling holder of the seedling holder to lock the seedling
A locking claw to be engaged, a claw shaft integrally attached with the locking claw,
A spring that urges the pawl to the side that protrudes into the seedling hold
And a roller set that supports the roller and operates integrally with the pawl shaft
Equipped with a roller arm on the side of the seedling box transfer device.
And an interlocking mechanism for operating the roller operating arm.
The seedling holder is in the seedling receiving position at the top of the stroke
The roller operating arm regulates the position of the roller,
Make sure that it does not protrude into the seedling hold,
The roller operation arm through the interlocking mechanism by the extrusion operation
Release the regulation of the roller and the locking claw is in the seedling holding part
Projecting, and the seedling holder at the bottom of the stroke
When it moves to the position immediately before the extraction position, it is fixed to the seedling box transfer device side.
The worn cam plate regulates the position of the roller and the locking claw
A seedling transplanter characterized in that it does not protrude into the hold portion .