JP3407314B2 - Seedling machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] [Industrial applications]The present invention plants seedlings in a field
The planting device and the seedling box are transported and the seedlings are removed from the transported seedling box.
And a seedling supply device having means for feeding the seedling to the planting device.
It relates to a sapling seedling planter. [0002] [Prior art]Raised seedlings in a seedling box with multiple pots
The seedlings are loaded into the planting section together with the seedling boxes, and pot seedlings are removed from the seedling boxes.
There is a rice transplanter that is configured to plant while removing
You. The seedling box used for this rice transplanter is flexible
Transport along a predetermined route, and
Remove the seedlings from the plant and supply them to the seedling removal position on the planting rod.
To be paid. [0003] SUMMARY OF THE INVENTION The planting of the conventional rice transplanter described above
Attached sections include seedling feeders, seedling extruders, seedling transport belts,
Since various devices such as a seedling delivery device are provided,
The transmission route became complicated, and there was also a problem in workability. Also,
Depending on the configuration of the seedling transport path, excessive force may act on the seedling box.
The seedling box may be deformed or the seedling may fall out of the seedling box
There was such a problem.Furthermore, space for empty box storage
Because it cannot be taken widely, the capacity of empty boxes is also small
Was.Therefore, the present invention devises a seedling transport route and
The task is to avoid such problems. [0004] Means for Solving the Problems To solve the above problems,
Therefore, the present invention is configured as follows. That is, in the present invention
In such a seedling plant, the seedlings are loaded into the planting section together with the seedling box.
Seedling box feeder 1 serving as a seedling box transport path
A seedling box containing seedlings is loaded on the seedling 4, and the seedling box is placed on the seedling box.
The box mounting part 21 and the seedling box mounted on the seedling box mounting part 21
It is transported with a downward slope, and then reversely transported in a U-shape and up
The seedling box transfer unit 22 that transfers the seedling at an inclination, and the seedling box transfer unit 22
Therefore, the empty box storage unit 2 for storing the empty seedling boxes that have been transported
3 and the U-shaped reversing transport section of the seedling box transport section 22
So that the seedlings are removed from the seedling box before being transported by
The seedlingsTakingSupply the seedling box from the delivery position
And the lower transport side is the transport section on the return side of the seedling box.
AndThe inclination angle of the seedling box mounting part 21 in the transport direction is set to
Slope down to seedling removal position in seedling box transport section 22
Set it more gently than the corner, and on the seedling box return side
From the U-shaped reversing conveyance section in the conveyance section to the empty box accommodation section 2
The inclination angle up to 3 is set to the seedling collection in the transfer section on the seedling box supply side.
Set steeper than the falling inclination angle to the take-out position,
The empty box storage section is located below the seedling box mounting section 21That
Features. [0005] [Function] The seedling box containing the seedlings is placed on the seedling box placing part 21 and the seedlings are placed.
It is conveyed with a downward slope in the conveyance section on the seedling box supply side of the box conveyance section 22
And then reversely transport it in a U-shape,
The sheet is sent to and stored in the empty box storage unit 23 by the transport unit. This transport
In front of the U-shaped reversing transport section on the routeSeedling removal positionso
The seedlings are removed from the seedling box and planted in the field.Seedling box mounting part 2
Take out the seedlings from the seedling box transfer section 22 using the downward inclination angle in the transfer direction 1
Seed box supply side part up to positionGently with respect to the inclination angle of
The seedling box containing the seedlings,
Absent.In addition, the U-shape in the transport unit on the seedling box return side
The inclination angle from the shape reversal conveyance section to the empty box storage section 23
Slope down to the seedling removal position in the transport section on the box supply side
Set the steep angle more steeply than the bevel, and place the empty box
21 below, wasteful dead space
Space, so that the space in the empty box
can do. [0006] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.Seedling machineOne example of a rice transplanter
It is a whole side view. This rice transplanter 1 is a four-wheeled traveling vehicle.
This machine 2 is equipped with a 6-row planting section 3 and fertilizer 4
And is configured as a riding fertilizer rice transplanter as a whole.
You. The planting section 3 is attached to a link device 5 provided at the rear of the machine 2.
And can be moved up and down with respect to the machine 2. What
The link device 5 is moved up and down by a hydraulic cylinder 6.
Can be As shown in FIGS. 2 and 3, the planting portion 3 is
The transmission case 10 and the horizontal pipe 9 constitute a frame.
The seedlings are supplied one by one to the predetermined seedling collecting position on the frame.
The seedling supply device 11 and the seedlings supplied to the seedling collecting position are
The planting devices 12 to be planted in the scene are assembled as many as the number of planting strips.
Have been. Growing seedlings in pot-type seedling boxes as seedlings for planting
Use potted seedlings. The seedling box is made of a synthetic resin material having flexibility.
It is molded and has the structure shown in FIGS.
You. In other words, the seedling box 300 is
Are arranged in rows and columns, and each pot
Seedling extrusion with three radial slits 302 at the bottom of the seedling
A hole 303 is formed. This seedling extrusion hole 303 is made of water.
It also serves as a punch. Longitudinal direction, direction perpendicular to it
Is horizontal, the pot pitch is constant in the vertical direction.
In the horizontal direction, pot and pot in the center
Is provided with a boundary portion 306 with a wide interval between
Equal number of pots per row (for example, 7 each)
They are arranged at intervals. Therefore, the strip-shaped boundary 30
Seedling pots are divided into two groups on the left and right across 6
ing. The left and right edges of the seedling box are ears 307 for guidance
At the same pitch as the vertical pitch p of the pot
, A claw hole 308 having a square shape in a plan view is formed. Ear part 3
The tip 309 of 07 is bent downward almost at a right angle.
You. The seedling box 300 is formed to be thin as a whole,
And flexibility in the left-right direction. In the pot 301, ...
Put the soil in the soil and sow until the seedlings have a certain size.
Nurture in. The rice transplanter 1 is connected to a seedling supply device 11 together with a seedling box.
The seedling supply device is configured to load seedling boxes.
A seedling box feeder 14 serving as a route, provided on the seedling box feederSeedling box
It is a transportation meansSeedling box automatic feeder 15, seedling box feeder 14
Seedling extruder 1 that pushes seedlings out of a seedling box at the seedling pushing position
6. Transfer the seedlings extruded by the seedling pushing device to the seedlings described below.
Seedling delivery device 17 that delivers to seedling belt 18, said seedling delivery
The seedlings received from the device are transported to the seedling collecting position of the planting device 12.
It is composed of a seedling transport belt 18 to be fed.These seedling extrusion equipment
, Seedling delivery device 17, seedling transport belt 18, etc.
It is a means to take out the seedling from the box and send it to the planting device 12
You. The seedling box feeder 14 includes a seedling box mounting portion 21 and a seedling box
It comprises a transport section 22 and an empty box storage section 23. Seedling box mounting part 2
1 has two upper and lower tiers, the front part is higher in each case
It is inclined as follows. Seedling box mounting part 21 (A) in the upper row
The rear part is an introduction part 25 curved downward,
At the lower end of the entry part, fit the rear end of the lower seedling box placing part 21 (B).
Shedding. Then, the seedling box transport section 22 is
Connected to the beginning of The seedling box transport section 22 is substantially U in side view.
It has a U-shape, and the rear end of the U-shape is the starting end and before the U-shape.
The end on the side is the termination. Empty box storage unit 23 carries seedling box
A plurality of empty seedling boxes are provided in front of the terminating end of the sending section 22.
It has a space that can be stacked and held. The flow of the seedling box is described below.
The seedling box 300 placed on the seedling box transfer section 22 starts.
From the end side to the end side, from the end of the seedling box transport unit 22
The released seedling boxes are collected in the empty box storage unit 23. This seedling
Box transportSeedling box automaticIt is performed by the feeder 15 and the seedling box
Moves intermittently by the pitch p. During transport, seedling
In the seedling box at the seedling pushing position 27 provided at the lower part of the box transport section 22,
Pot seedlings are pushed backward by the seedling pushing device 16.
It is. Since the seedling box 300 is flexible, it can be transported in a curved shape.
It is possible to transport along a route. In addition, upper and lower seedlings
A branching mechanism described later is provided at the merging section 26 of the box mounting section.
At first, the seedling box of the lower seedling box placing part 21 (B)
The seedlings are sent to the box transport section 22 and the lower seedling box placing section 21 (B)
If the seedling box is no longer used, the upper seedling box mounting part 21 (A)
Is transferred to the seedling box transport section 22. From the front end of the seedling box placing part 21 to the seedling box transporting part 22
The part up to the seedling pushing position 27 is the supply side of the seedling box.
Yes, from the seedling pushing position 27 to the end of the seedling box transport unit 22
Is the return side of the seedling box (empty box). First half of supply side
In other words, the portion of the seedling box mounting portion 21 is
To prevent unnecessary load on the lower seedling box.
The slope is relatively gentle, but the latter half of the supply side
In other words, in other words, the inclination of the portion of the seedling box transport section 22 becomes steep.
ing. In addition, the supply side portion of the seedling box transport section 22
Tilt angle θ₁ And the inclination angle θ of the return side part_Two Place to compare
In this case, the slope on the return side is steeper than on the supply side.
(Θ₁ > Θ_Two ). This is for the following reason. Sand
Since the supply side transports the seedling box containing the seedlings,
There is a limit to the slope to prevent falling,
The return side carries empty boxes and should be close to vertical.
Because it can be. And the empty box storage section 23 is a seedling box
It is located directly below the mounting portion 21 and avoids the rear wheel 2a of the machine 2
So as to be substantially parallel to the seedling box mounting portion 21.
The above configuration is effective in shortening the overall length of the fuselage.
As is clear from FIG.
No space is created. FIG. 7 is a sectional view taken along the line BB in FIG.
The seedling box mounting part 21 is provided with a plurality of seedling box support members 3 long in front and rear.
0,... Are arranged in parallel, and these are connected by connecting bars 31,.
Connected on the bottom side, the center of the left and right supports seedling boxes
A raised ridge 32 which is one step higher than the member 30 is formed.
You. When supplying the seedling box, center the left and right of the seedling box 300The seedlingbox
The mounting portion 21 is mounted so as to be aligned with the left and right centers. Seedling
The bottom of the seedling pots 301,... By the box support members 30,.
Surface, and the ridge 32 is the back surface of the boundary portion 306.
The seedling box 300 moves left and right by engaging the groove
It does not shift. FIG. 8 is a sectional view taken along the line CC in FIG.
Since the introduction part 25 is curved, the straight part of the seedling box mounting part
It has a different structure from the minute. In other words, support the seedling box
The bottom plate 35 is a plate having a corrugated cross section,
5a and 35a are higher than other parts. Also,
A partition plate 36 for partitioning each strip is provided.
A holding member 37 is attached to the inner surface. Rim 35
The ear 307 of the seedling box will pass through the gap between a and the holding bracket 37
Swell. As described above, the edge portion 3 and the presser fitting 37 are used to form the ear portion 3.
07, the seedling box 300 is
It is fed smoothly along the curved line and the edge 36
The horizontal movement of the seedling box 300 is restricted by
Seedling box 300 does not shift left and right. In addition, the
A pair of upper and lower support rods is formed by mounting plates 39, 39 integrally formed at the place.
40, 40, and a support plate attached to these support rods
A holding rod 42 is fixed to the tip of each of 41, 41. This
The presser bar 42 presses the border 306 of the seedling box from above.
Through the introduction section 25 which is curved at a sharp angle.
To prevent the left and right central parts of the seedling box 300
It acts to stop. FIG. 9 is a view taken in the direction of arrow D in FIG. Seedling box
The supply side portion of the transport section 22 is the same as the bottom plate 35 of the introduction section 25.
Bottom plate 44, edge 44a of the bottom plate and presser fitting 45
Guides the ear 307 of the seedling box. Presser foot
At the bottom of the bracket 45, a rectangular opening 45a that is long vertically
Are formed. The lower arc-shaped portion of the seedling box transfer section 22
A pair of left and right rails 46 for receiving both left and right ends of the box
And a guide fitting 47 for supporting the left and right border 306 of the seedling box.
Having. FIG. 10 is a view as seen from an arrow E in FIG. Seedling
The return side portion of the box transport section 22 is located on the left side along the upper surface of the seedling box.
Right pair of receiving pipes 48, 48 and the boundary 306 of the seedling box
And a guide pipe 49 fitted on the back side of the
The seedling box is sandwiched between 48, 48 and 49. As shown
The pair of left and right receiving pipes 48, 48 are connected at the end.
The connecting portion 48a is constricted downward at the center.
Shape, and corresponds to the constriction of the connecting portion 48a.
The guide pipe 49 has a receiving pipe 49a near the end thereof.
It is bent closer. Therefore, the end of the seedling box transport section 22
Seedling box 300 (X) immediately before being released from
Bend in the direction intersecting the feed direction so that it is convex downward.
It is. In this way, the seedling box 300 (X)
Since the rigidity is increased, the seedlings are released at the time of release, as shown in FIG.
The box does not bend more than necessary in the feed direction (front-back direction)
That is, it can be successfully collected in the empty box storage section 23. [0018]Seedling box automaticFIG. 12 and FIG.
It is configured as shown in FIG. 50 is an automatic feed rod,
The claw hole 30 of the seedling box inserted into the opening 45a of the presser fitting 45
8 has an automatic feed claw 51 that engages with the lower wall surface. this
The automatic feed rod 50 is provided at the end of the swing arm 53.
To the seedling box path side of the roller shaft 54 via the torque spring 55
The swing arm 53 is supported
It will move up and down as it swings around the shaft 57
Swelling. When the automatic feed rod 50 is at the lower limit position
The automatic feed claw 51 is positioned at the seedling pushing position 27.
Is set. The swing arm 53 holds the seedling feed rod 58
Driven through. Reference numeral 60 denotes a stop rod, which is the opening 45a.
That is inserted into the upper wall of the claw hole 308 of the seedling box
It has claws 61. The stop rod 60 is pivotally moved about a support shaft 62.
The lower end slides on the roller shaft 54
Abut freely. Therefore, the swing arm 53 moves upward.
Then, the lower part of the control rod 60 is pushed rightward, and the control claw 61 is
It comes off from the claw hole 308. Furthermore, restraint
When the rod 60 is pushed for a certain amount or more, this
The automatic feeding pawl 51 is engaged with the engaging piece 50a and the claw hole 308
Come off. Reference numeral 65 denotes a leaf spring brake,
5a is engaged with the claw hole 308, so that the seedling box has its own weight.
It acts to prevent it from falling. Next, FIG.
The seedling box feeding operation will be described with reference to FIG. FIG. 14 shows a state in which the swing arm 53 has swung downward.
The automatic feed claw 51 of the automatic feed rod 50 and
When the stopping claw 61 of the stopping rod 60 is fitted in the opening 45a,
The upper wall surface of the claw hole 308 of the seedling box by the stopping claw 61
(In the initial state, the lower end of the seedling box)
Box 300 is held stationary. FIG. 15 shows a state in which the swing arm 53 swings upward.
The automatic feed rod 50 moves upward and
The moving feed claw 51 slides along the upper wall surface of the claw hole 308, and
The moving feed claw 51 is pushed out from the claw hole 308,
The lower part of the control rod 60 is rotated backward by being pushed by the roller shaft 54.
Then, the stopping claw 61 also comes off from the claw hole 308. Leaf spring breaker
The seedling box 300 is kept in the same position by the action of the key 65.
Will be retained. The swing arm 53 is directed downward from the state shown in FIG.
When the automatic feed rod 50 is rotated to the position shown in FIG.
The moving feed claw 51 is fitted into the claw hole 308. At this point
The stop pawl 61 of the stop rod 60 is out of the pawl hole 308.
You. In this state, the swing arm 53 is further rotated.
As a result, the automatic feed claw 51 pushes down the lower wall surface of the claw hole 308.
The seedling box 300 is conveyed by one pitch p. In addition, above
Some seedling boxes fall under their own weight. When the swing arm 53 reaches the bottom dead center
, The regulation by the roller shaft 54 is released and
The pawl 61 fits into the pawl hole 308 and returns to the state of FIG. The seedling box feeder 14 isSeedling box automaticFeeding device 1
Apart from 5Seedling box manualA feeding device 69 is provided. FIG.
And 70 in FIG. 13 denotes a manual feed rod,
A manual feed pawl 71 similar to the pawl 51;
3 via a torque spring 75 to a roller shaft 74 provided at an intermediate portion.
To the seedling box transport path side
I have. Normally, the manual feed rod 70 is shown in FIG.
At a cycle where the seedling box moves by one pitch p.
A state in which the moving feed claw 71 is fitted into the claw hole 308 of the seedling box and a manual
The feed pawl 71 is swung so as to be pushed out of the pawl hole 308.
ing. The manual lever 73 is reciprocated within the range shown in FIG.
When the manual lever 73 is rotated downward,
The moving feed claw 71 pushes down the lower wall surface of the claw hole 308 to move the seedling box.
300 in the feed direction by one pitch p. The hand
When the moving lever 73 is slightly moved up from the home position, the roller
When the shaft 74 presses the upper part 60a of the stop rod 60,
When the stop lever 60 rotates counterclockwise and the stop pawl 61
BecauseSeedling box manualTransfer of seedling box by feeder 69
It becomes possible. Further, move the manual lever to the position shown in FIG.
To engage the manual feed claw 71 with the locking piece 76.
The stop rod 60 engages with the engaging portion 50a of the automatic feed rod 50.
To rotate the automatic feed rod 50 backward,
The state in which the automatic feed claw 51 of the rod 50 is also removed from the claw hole 308
The seedling box will fall freely. The manual feed rod 70 is moved when the seedling box is loaded.
Also serves as a stopper for preventing the seedling box from falling. 76 is a spindle 77
The stopper arm, which is rotatably supported on the
A curved portion 76a is formed on a side surface of the manual feed rod 70.
70a. Stopper arm 7
6 is provided on the path through which the ear 307 of the seedling box passes.
And the spring 78 reverses the feeding direction of the seedling box.
Being energized. If the seedling box 300 exists on the transport route
When the stopper arm 76 is pushed by the seedling box 300,
9, the manual feed rod 70 is at the position indicated by the chain line.
Lee. However, there is no seedling box on the transport route.
Then, the stopper arm 76 is moved by the force of the spring 78.
In FIG. 19, it is rotated to the position shown by the solid line,
76a and the projection 70a are engaged with each other,
Operation is restricted. Therefore, the seedling box of the seedling box feeder 14
When seedling box 300 is loaded when empty, seedling box 300 is manually
Once received and held by the manual feed pawl 71 of the feed rod 70
You. In this way, the seedling box will be transported when the seedling box is loaded.
Seeds and seedling boxes drop sharply to the lower part of the sending section 22AutomaticFeeding equipment
A trouble can be prevented from occurring in the device 15. Manual lever
Operate the manual feed lever by operating70If you lift a little,
Bending portion 76a of stopper arm and projection 70aofEngagement
Is released, and the manual feed rod 70 becomes free.
The seedling box that has been dropped can now fall. When the seedling box falls
The stopper arm 76 is pushed to the position shown by the chain line.
You. The lock into which the spring 78 is loosely fitted.
The arm 80 is linked with the swing arm 53 by the connecting member 81.
And the swing arm 53 swings upward.
That is, the automatic feeding claw 51 and the stopping claw 61
08, the spring 78 is compressed and contracted.
As a result, the urging force of the stopper arm 76 increases.
I have. As described above, the automatic feeding claw 51 and the
When the stopping claw 61 comes off the claw hole 308, the seedling box 300
Is held by a leaf spring brake 65
However, the leaf spring brake 65
Just cannot be supported. So, at this time,
Pararm 76 prevents upper seedling box from going down
Acts as a brake to assist and assists the leaf spring brake 65
You do it. Further, the stopper arm 76 is provided with the flow dividing mechanism.
Constitutes a part of. In other words, if the upper and lower seedling box
A switching stopper 90 is rotatably provided in the flow portion 26,
The switching stopper90And the stopper arm 76
Are connected by a pad 91. The stopper arm 76 is shown in FIG.
9, the switching stopper 90
Is also at the position of the chain line, and the seedlings of the upper seedling box mounting portion 21 (A)
The box transport path is closed. Because of this,
Is the seedling box 3 placed on the lower seedling box placing part 21 (B).
00 is supplied to the seedling box transport section 22. Seeding box for lower seedling
The seedling box of 21 (B) has been supplied and the tail of seedling box 300
Is passed through the stopper arm 76, the stopper arm 7
6, the switching stopper 90 rotates to the position indicated by the solid line.
Since the seedling box transport path is opened, the upper seedling box
The seedling box placed on the loading section 21 (A) is a seedling box transport section 22.
Will be supplied to The manual feed rod 70, which is a drop prevention stopper,
A sensing switch that detects the presence of a seedling box between the seedling pushing positions 27
Switch 93 is provided.
It is displayed on the seedling reduction lamp 94 etc. of the termascot
It has become. If the seedling reduction lamp 94 lights up,
When the operation is stopped and a new seedling box is supplied to the seedling box
In both cases, remove empty boxes loaded in empty box storage section 23
Good. A sensing switch 93 is provided at the position of the present embodiment.
Can replenish the seedlings before they are completely gone
As a result, planting shortage is prevented and the manual feed rod 7
When 0 functions as a stopper, the sensing switch 9
3 detects the decrease in seedlings, so the supplied seedling box is
70 once received, seedlings by impact etc.
Box displacement can be prevented. The seedling pushing device 16 is shown in FIGS.
As shown in the figure, the position on the line passing through the seedling pushing position 27
, The seedling pushing pins 100,.
The attached slide member 101 moves along the guide rod 102
And is configured to be slidable in the axial direction of the seedling pushing pin 100.
ing. Rotating shaft 10 provided above slide member 101
4, a swing arm 105 is pivotally supported.
The slide member 10 is inserted into the engagement groove 106 formed at the lower end of the slide member 10.
An engaging projection 107 projecting from one side surface is engaged. Times
The drive shaft 108 is also provided integrally with the drive shaft 104.
And a seedling push rod 109 connected to the drive arm.
Reciprocating causes the swing arm 105 to swing
You. When the swing arm 105 swings, the slide member 101
Reciprocates along the guide rod 102 and moves backward
At this time, the seedling pushing pin 100 is inserted into the seedling pushing hole 303 of the seedling box.
It is inserted and pushes the seedling in the pot 301 backward. Guy
The seedling pushing pin guide hole 110 is
The guide plate 111 having the hole is fixed. This guy
The seedling box 111 holds the seedling box 3 waiting at the seedling pushing position 27.
Also has the role of preventing 00 from bending forward (to the pot side)
You. Seedling extrusion for extruding the left half of seedling in each section
Push out the pin 100 (7 in the example shown) and the right half of the seedling
The seedling extrusion pins 100 (seven in the example shown) are separate
Attached to the slide members 101 (L) and 101 (R)
The seedling push pins 100,... Of both groups are
It operates alternately while maintaining the phase of 80 degrees
You. In addition, two units are one unit, and these two items
And the inner seedling pushing pins 100,... Operate simultaneously
And the outer seedling push pins 100,...
You. Rotating shaft 104 (I) for inner seedling push pin and outer
Shafts 104 (O) for the seedling push-out pins interfere with each other
The rotation shaft 104 (I) is formed on a cylindrical shaft to avoid
Then, a solid rotating shaft 104 (O) is fitted inside thereof.
I have. FIGS. 22 and 23 show the side view of the seedling delivery device.
It is a figure and a development top view. Seedling delivery device 17
With seedling delivery arm 111 having seedling holder 110
I have. The seedling holder 110 is, as shown in FIG.
Of seedling 310 corresponding to the seedling pushing pins 100,.
A semicircular recess at the bottom to allow the portion 310a to fit
.. Are formed. Seedling delivery arm 111
Is attached to a rotating frame 115 that rotates around a rotating shaft 114,
It is attached so that it can move forward and backward,2
2Swings up and down within the range of JK at
At the lowering position K, the rotating frame 115 is moved to the forward position L.
To move forward. The material of the seedling holder 110 is aluminum.
If the surface is coated with Teflon,
This is preferable because of less wearing. Seedling delivery arm 111
Are connected to the front end portions of the left and right members 111a, 111a.
11b, and place the seedling holder 110 on the connecting member.
It has a structure that is attached. Adopt such a structure
This improves the rigidity of the seedling transfer arm 111 itself.
In addition, the seedling holder 110 is reinforced. As shown in FIG. 25, the right and left
L-shaped guide from the top to the front in the center
A groove 116 is formed, and is provided in front of the seedling box feeder 14.
The movement path of the seedling holder 110 is provided at the rear of the
The overhang portion 47a having a shape along the shape is formed.
When the seedling holder 110 moves between J and K,
The overhang portion 47a engages with the front portion 116a of the guide groove,
Guide bracket when the seedling holder 110 moves between KL
Projecting portion 47a engages with the upper portion 116a of the guide groove,
Make sure that the seedling delivery arm 111 does not shift left and right during operation.
Has become. Also, it faces the seedling delivery arm which has been moved down.
A seedling hitting tool 117 is provided at the position. This seedling striker
117 is inserted into the concave portions 112,... Of the seedling holder 110.
So that each tip separation part 118 is
The nursery 310a is bent as shown in FIG.
118a for receiving the bottom of the plant and the upper side surface of the seedbed 310a
A portion 118b is formed in contact with. Seedling striker 1
17 is attached to the seedling hitting mounting arm 120,
FIG. 22 shows that the mounting arm 120 swings.
It moves up and down intermittently in the range indicated by the solid line and the chain line. Seedling tapping
Mounting arm 120 is actuated via seedling strike rod 121
Let me do. 122 is a return spring. When the seedling transfer arm 111 is at the J position
From the seedling box 300 by the seedling pushing pins 100,.
The extruded seedlings 310,...
Pressed into 2, ... Seedling delivery arm 111 is at K position
And then advance to the L position. Seedling 310, ...
Is received by the seedling striker portion 118a.
Are detached from the seedling holder 110. And the time
The seedling striker 117 is moved down in the same manner, and the seedling holder 110 is moved downward.
The seedlings 310,...
Drop it. The seedling delivery device 17 is one of the seedling pushing devices 16.
/ 2 cycle, so the inner seedling push pin 100
The seedlings extruded with and extruded with the outer seedling pushing pins 100
Alternately transferring the transferred seedlings to the seedling transport belt 18
Becomes FIG. 26 is a side view of the seedling transport belt, and FIG.
It is the M arrow view. Seedling conveyor belt 18 is right triangle
Symmetrical pair of timing belts 130 stretched over
(L) and 130 (R) form one set. timing
Three roller shafts 131 (1, (1)
2,3) is oblique so that the front part is lowerToHas become a seedling
The transport belt 18 is supported in a state of being lowered forward in a side view.
I have. The tip of the leaf 310b from the floor portion 310a of the seedling 310
With a relatively wide belt width that can cover up to
The lower part of the outer peripheral surface of the mining belt 130, that is, the floor portion of the seedling
Classifying seedlings one by one into the area where 310a hits
Are provided at equal intervals q in the circumferential direction.
Both, the partitioning projection133, ...From the said circumferential distance
The lower end of the timing belt at a position shifted by の of q
Receiving projections 134 on the edges for receiving the bottom of the floor soil portion 310a,
... are provided. Roller shaft 131 at lower center side
(1) is a drive shaft, and both timing belts 130 (L),
130 (R) always moves in the direction of the arrow in FIG.
You. Left and right timing belts 130 (L), 130
(R) is separated by an interval 136 through which one seedling can pass.
The spacing136137 at the lower end
It has become. The seedling opening 137 holds the seedling once
PostscriptIncludingGuide when the rod 141 holds the seedling
A pair of left and right rubber guides 138, 138 are attached.
Have been killed. Seedlings transferred by the seedling transfer device 17
The seedling group (7) on the left half of the box is the timing belt 1 on the left.
30 (L) placed on the upper side, right half seedling group (7)
Is placed on the upper side of the right timing belt 130 (R).
Can be Delivery of the seedlings is performed alternately on the left and right. Right and left
It was placed on the upper side of the timing belt 130
The seedlings 310,...
There is no spacing between the left and right timing belts after being conveyed inside
Is transported downward through the section 136 and
The shares are supplied one by one (see FIG. 28). The last of these
When the seedlings are transported to the interval 136, the other
The seedlings 310,...
29). In this way, the left and right timing belts
Move the seedlings alternately while moving
As a result, the seedlings are continuously supplied to the seedling opening 137.
It is. The seedling opening 137 among the three roller shafts
To drive the roller shaft 131 (1) located in the vicinity of
Therefore, there is little deviation in seedling supply timing. The planting device 12 includes a planting device mounting shaft 15 described later.
The rotary case 140 that rotates about
PlantingIncludingRods 141 and 141 are attached. PlantingIncludingRod 1
41 is provided with a seedling holding claw 142 and a seedling pushing tool 143;
IncludingThe rod moves up and down while drawing a predetermined trajectory 144,
At the top of the mark, the seedling holding claw 142
While holding the supplied seedling, push the seedling at the bottom of the track
The tool 143 protrudes and pushes out the held seedlings.
More so that seedlings can be planted one by one in the field
Have been. The rubber guide 138 is shown in FIGS.
As shown in FIG. 31, the support frame 18 of the seedling transport belt is provided on the base side.
And the free end is on the locus 144 of the seedling holding claw.
Along the lower front. Inner surface of rubber guide 138
The part has a groove-like slit 1 in a direction intersecting the locus 144.
46 and pleated ribs 147 are formed in front and rear. Seedling transport
Seedlings dropped from feed belt 18 are placed on ribs 147 and 147.
Therefore, it is in a supported state, and the seedling holding claw 142 is there.
After entering, the seedlings are pinched, and the seedling holding claws 142 that pinch the seedlings
While expanding the tip of the rubber guides 138, 138
Moving. Once the seedlings are supported by the ribs 147, 147
The distance r between the bases of the rubber guides 138 is increased.
And the dropping of seedlings is assured. Seedling holding claw
The tip of 142 contacts the thin and soft rib 147
Therefore, the rubber guide 138 is hardly damaged. Also, slit 1
46, the rubber guides 138, 13
8 has no effect on the base even if the tip is spread out.
137 to prevent the seedlings from falling
it can. PlantingIncludingThe rod 141 passes through the rubber guides 138, 138.
So that the next seedling is dropped into the seedling opening 137
Timing is set. The transmission case 10 is shown in FIGS.
As shown, a rolling shaft is attached to the rear frame 5a of the link device 5.
150 is an input cable that can be freely mounted by rolling.
Gear 151 and transmissions protruding from both sides of the input case.
The pipes 152 and 152 and the central portion of the input case 151
And extend rearward from the tip of transmission pipes 152 and 152
Three L-shaped cases 153,.
You. The L-shaped case 153 has a horizontal portion 153a extending horizontally.
Rising section 153 that rises vertically from the rear end of the horizontal section
b on the both sides of the rear part of the horizontal part 153a.
2 and 12 are provided, and on the rising portion 153b.
It is transmitted to each part of the seedling supply device 11 for two rows at the end.
Transmission box 153c is provided. Input case 151 and transmission pipe 15
Universal shaft is attached to the main shaft 155 supported in
Power is input from the main unit through the
It is supported from the axis to the rear part of each L-shaped case horizontal part 153a.
It is transmitted through the chain 159 to the planting device mounting shaft 158.
You. A counter provided at the rear of the planting device mounting shaft 158.
And transmitted to gear shaft 160 via gears 162 and 163.
In addition, the transmission shaft is transmitted from the counter shaft 160 through the chain 164.
It is designed to transmit to each axis in the box 153c. FIG. 34 is an exploded sectional view of the transmission box.
The transmission box 153c always rotates in a fixed direction.
Seedling conveyor belt drive shaft 170, seedling delivery device drive shaft 1
71 and a seedling box feed drive shaft 172 and a cam from each of the above shafts.
Seedling delivery arm slide that is driven and rotates intermittently repeatedly
Shaft 174, seedling pushing pin operating shaft 175 and seedling feeding
A driving shaft 176 is supported. 178,179,18
Reference numeral 0181 denotes a transmission gear, and
Seedling delivery device drive shaft 171 and seedling box feed drive shaft 172 in this order.
The seedling transport belt drive shaft 17
0 and the rotation speed of the seedling delivery device drive shaft 171 are equal.
The rotation speed of the seedling transfer device drive shaft 171 is the seedling box feed drive
The rotation speed is set to twice the rotation speed of the shaft 172. The housing 18 of the rising portion 153b
3 includes left and right case members 183 (L) and 183 (R).
It is joined almost at the left and right center of the case. This left and right handset
Gear so as to be located near the mating surface 184 of the gear member.
162, 163, 178, 179, 180, 181 and
And the chain 164 are arranged, so that the planting device mounting shaft
158 timing adjustment of each axis in the transmission box
Can be easily performed. The seedling transport belt drive shaft 170 is orthogonal to the drive shaft 170.
Four roller shafts 131 for two rows provided in the direction of rotation
(1) is driven via bevel gears 186 and 187.
A pair of roller shafts 131 (1) and 131 (1) of each strip are
It is designed to rotate in the opposite direction. One end of the seedling delivery device drive shaft 171 is
Projecting out of the case, there is a seedling transfer arm rotation clamp
A lock 190 is attached. Seedling with reference to FIG.
The swinging mechanism of the delivery arm will be described. The rotation axis
A swing arm 191 is provided integrally with the swing arm 114.
A pin 193 having a guide hole 192 in the arm is rotatable.
It is supported by And one end of the crank 190
The transmission rod 195 that is rotatably connected to the guide hole
192 is slidably inserted. Transmission rod 195
Springs 196, 19 on both sides of the pin 193
7 is loosely fitted, and the transmission rod 195 and the pin 193 are
The positional relationship can be elastically changed. Also transmission
Along with the rod 195, the stopper rubber 19 is provided at a predetermined interval.
The stopper rod 201 on which the support members 9 and 200 are fitted
2 are provided so as to be freely rotatable. Crank 1
The rotation of the swing arm 90 causes the swing arm 191 to swing.
The seedling delivery arm 111 moves up and down,
The swing range of the arm 191 depends on the stopper rubbers 199 and 200.
The upper limit of the seedling delivery arm 111
The position is J and the lower limit position is K. Excess of crank operation
Is absorbed by the springs 196 and 197. I
Therefore, at the seedling receiving position H and the seedling release position
At a certain J, the vertical rotation of the seedling transfer arm 111 is
And the seedlings can be reliably delivered.
You can. The seedling delivery arm slide shaft 174 is
Seedling delivery by id cam 210 and cam follower 211
The rotation of the device drive shaft 171 is transmitted and rotates repeatedly. So
And provided on the protruding portion of the seedling transfer arm slide shaft 174
The repeated movement of the slide arm 213
It is transmitted to rollers 214, 214 which are supported on the holding shaft 111a,
The seedling delivery arm support shaft 111a is
Slide it. Slide cam 210 and cam follower 211
Rotates the seedling transfer arm slide shaft 174 in the pushing direction
The spring 215 in the return direction.
It is designed to be turned over. The slide arm 21
3 is an extrusion fixed to the seedling transfer arm slide shaft 174.
The coil spring is attached to the extension arm 213a and the pushing arm.
And the return arm 213b attached at 217.
And the rollers 214, 214 escape to the return arm 213b side.
Are provided. Further, the seedlings are beaten integrally with the crank 190.
A cam 220 is provided.
The seedling tapping arm 222 is swung by the follower roller 221,
The seedling strike rod 121 is driven. In this case, too,
Driving 117 to the working side is performed by a spring 225.
Seedling striker with seedling strike cam 220 and cam follower 221
117 is returned to the original position. The operation of the seedling striker 117 is instantaneous.
Must be performed by the
For this purpose, the drive mechanism has the configuration shown in FIG. Sand
The cam 220 is composed of a peak 220a and a valley 220b.
Roller 221 falls from the peak 220a to the valley 220b.
The seedling hitting arm 22 is acted upon by the action of the spring 225
2 rotates in the direction of the arrow. Seedling strike arm necessary for seedling strike
The motion amount of 222 is α₁And the required cam 220
Is β₁ It is. However, the roller 221
The amount of rotation of the cam 220 when passing through the corner 220c
Sufficient movement amount of the seedling strike arm 222 is not obtained.
So, this part is play, seedling strike arm 2
22 working range α_Two (Rotation range β of cam 220_Two ) Is a seedling
The striking tool 117 does not operate. The seedling pushing pin operating shaft 175 is for the inside (I)
And the outside (O). Both axes rotate concentrically with each other.
It is supported by And the seedling extrusion pins for the inside
The seedling pushing arm 230 (I) of the driving shaft 175 (I)
Seedling pushing rod 109 (I) is attached,
Seedling pushing pin Actuating shaft 175 (O) Seedling pushing arm
An extrusion rod 109 (O) is attached. The drive mechanism of the seedling push pin operating shaft 175 is shown in FIG.
36. 232 drives the seedling delivery device
With an extrusion cam attached to the shaft 171, an inner cam (I) and an outer cam
The side (O) is in phase. 233 is a seedling box feeder
Push-out stopper attached to the driving shaft 172, for inside
The phase of (I) and the phase for outside (O) are shifted by 180 degrees.
234 (I) and 234 (O) are for inside and outside
Seedling push-pins are provided in the same phase on the operating shaft 175
Roller support arm, the roller corresponding to the extrusion cam 232
Roller 236 and roller 2 corresponding to the extrusion stopper 233
37 are rotatably supported. Roller support
The arm 234 has a spring on the side where the roller engages with the cam.
238 and by the spring
The roller support arm 234 is on the drive shaft 171 side of the seedling transfer device.
The seedling push pin 100 will protrude when it is drawn to
Swelling. The peak 232 a of the extrusion cam is
Or the protrusion 233a of the extrusion stopper
Is engaged with the roller 237, the roller support arm 2
34 is the position where the outer side 234 (O) is shown in the figure.
The seedling push-out pin 100 does not protrude.
Valley 232b engages roller 236 and pushes
When the valley 233b of the stopper faces the roller 237
Then, the seedling pushing pin 100 projects. Place
The rotation speed of the seedling delivery device drive shaft 171 is controlled by the seedling box feed drive.
Since the rotation speed is twice the rotation speed of the driving shaft 172, the pushing cam 2
The extrusion stopper 233 makes one rotation while the 32 makes two rotations.
You. Therefore, the seedling box feed drive shaft 172 makes one rotation.
At one time, the seedling pushing pin 100 protrudes. Ma
In addition, both the inner and outer extrusion stoppers 233 (I),
Since 233 (O) is 180 degrees out of phase,
Seedling push pin and outside seedling push pin are 180 degrees out of phase
Protrude alternately in a shifted state. Extrusion stopper 233
The peaks 233a and valleys 233b of (I, O) are rollers.
237 is the timing chart of FIG.
Shown in the chart. From the seedling box feed drive shaft 172 to the seedling feed operation shaft 1
76, via a seedling feed cam 240 and a cam follower 241.
And the rotation is transmitted. Left and right collision of seedling feed operation shaft 176
A frame-shaped seedling feeding operation arm 242 is attached to the protrusion,
TheSeedling feed operation arm 242Seedling feed rod 58 at one end of
The rear end is pivotally connected and the other end
Acting in the direction of pushing the seedling feed rod 58 forward.
The pulling 243 is connected. (Shown in FIG. 2)
Rotating the seedling feed swing arm 53 in the seedling feed direction is
It is done by the pulling 243, and the rotation in the return direction is the seedling sending.
And a cam follower 241. As described above, the seedling feeding device 15 and the seedling pushing device
Of the seedling transfer device 16, the seedling delivery device 17, and the seedling transport belt 18.
The drive mechanism is arranged collectively at the end of the transmission case 10.
And a common shaft (seedling conveyor belt drive shaft 170)
Because it is more transmitted, chains, gears, etc.
Phase shift between devices due to backlash
The seedling supply operation can be performed accurately. Seedling supply
The phase of each related device is determined based on the phase of the implanted rod.
Therefore, the drive mechanism is a power take-out portion of the planting rod.
End in the planting part transmission system rather than the planting device mounting shaft 158
It is good to be provided on the side. The drive mechanism at each of these positions is
Use the spring to perform the operation on the
And the cam follower to perform
Quick and precise operation, and smaller cams
Have been. Operation tie of seedling supply device 11 and planting device 12
FIG. 37 shows the timing in a timing chart.
This figure means the following. (1) "Sampling position" a₁ ~ A₁₄Is an implant
The seedling holding claw 142 of the rod 141 passes through the seedling collecting hole 137.
Shows timing. (2) "Standing rod stop position" b₁ ~ B₁₄Is
Tie where the planting device 12 stops when the planting clutch is disengaged
The planting rod 141 slightly exceeds the seedling opening 137.
Stop at a break. (3) “Seedling box feed” means the movement of the automatic feed claw 51
Show work, c₁ Starts moving upwards and c_TwoSwitch to down motion with
And c_Three Stops the operation.AutomaticFeeding claw 51 moves down
At this time, move the seedling box by one pitch. (4) Regarding “seedling extrusion”, d₁ -D
_Two The seedling push pin 100 projects between_Three -D_Four Seedling among
The push pin 100 retracts. Inner seedling push pin 10
0 (I) and operation phase of outer seedling pushing pin 100 (O)
Are shifted by 180 degrees. Inside just before starting seedling box feeding
The operation of the seedling pushing pin 100 (I) is completed. (5) "Rotating seedling transfer arm"
Is e₁ -E_Two The seedling delivery arm 111 moves down between
_Three -E_Four The seedling transfer arm 111 moves upward between the two. Figure
IMWhen it is not clear from the chart, but moves down
Is slightly slower than when moving up
I have. This is because the seedlings held in the seedling holder 110
To prevent the release or displacement of
It is. (6) Regarding “seedling delivery arm slide”
And f₁ −f_Two The seedling delivery arm 111 moves forward,
f_Three −f_Four The seedling transfer arm 111 retreats between the two. Seedling
To ensure that the seedlings can be extracted from the rudder 110
In addition, the forward speed is lower than the reverse speed. This
Slide operation is performed when the seedling transfer arm 111 is in the lower movement position.
It takes place during some time. (7) Regarding “sapling of seedling”, g₁ -G_Two
Seedling striker 117 moves down between g_Three -G_Four Seedling striker between
117 moves up. This seedling beating operation is performed by the seedling delivery arm.
This is done while 111 is stopped in the forward position. (8) Seedling delivery arm rotating operation, seedling delivery
Arm slide operation and seedling beating operation are performed twice in one cycle
However, the phases of both operations are shifted by 180 degrees. First movement
Extruded by outer seedling push pin 100 (O)
The transferred seedlings are transferred to the seedling transport belt 18 and the second operation
The seedling extruded by the inner seedling pushing pin (I)
Transfer to the conveyor belt 18. (9) Planting when work is stoppedIncludingThe rod 141 is
Implant rod stop position b₁ ~ B₁₄Stop at one of the seedlings
When the push pin 100 is inserted in the pot of the seedling box
Cannot pull out the seedling box from the seedling box feed stand 14.
So, the seedling extrusion device16Is inactive and the seedling box
ExtractionIOK run that removes the seedling box showing that it is possible
It is convenient to provide the wheel 245 in the cockpit. This seedling
The box extraction OK lamp 245 is, for example, a seedling pushing arm.
Seedling operation table that turns ON when 230 is not operating
Indicated by the display switch 246 (shown in FIG. 34).
And d_Four -D₁ Lights up during the interval, otherwise
Is turned off. (10) Feeding of seedling box and pushing of seedling (inside)
By setting the movement start time almost the same,
100 is completely inserted into the seedling pushing hole 303 (d_Five )
The stopping claw 61 comes off from the claw hole 308 of the seedling box
(C_Four There is a slight time difference (about 18 degrees 30 minutes) before
The seedling box is prevented from falling down. (11) The automatic feed pawl 51 is moving upward.
(C₁ -C_Two ) Inside or outside (in the example shown inside)
Seedling push-out pin 100 moves forward and backward. Automatic feed claw 5
When 1 starts moving upwards, the stopping claws 61 come off and the seedling box
It is in a state of being stopped by the brake 65 only. This
At this time, the seedling pushing pin 100 is inserted into the seedling pushing hole 303 of the seedling box.
If it is inserted intoWhatExternal force or vibration
Even the seedling box does not fall off. On the lower side of the planting section 3, a float for leveling is provided.
And the center float 250 located at the center of the left and right
(C) and the side flow located behind the rear wheel of the machine 2
250 (L, R). Each float 2
50 (L, C, R) has a wide front part and a narrow rear part
Grooves for forming seedling transplant grooves on the left and right sides of the rear
Are mounted. Float 250
(L, C, R) are rotatable up and down on the transmission case 10.
A support pin 254 is provided at the rear end of the float support rod 252 provided.
And the front part is connected to the expansion / contraction link 255.
Therefore, it is suspended, and the front part is up and down according to the unevenness of the rice paddy surface.
It works. Center float 250 (C) is paddy field height
Sensor to detect the height of the center float
The hydraulic valve 2 for controlling the hydraulic cylinder 6 based on the movement
57 spools are switched, and the planting part 3
Control to a constant height. Therefore, the seedling depth
Is always kept constant. The float support rod 252
By rotating and changing the support height of each float,
The planting depth of the seedlings can be adjusted. The fertilizer applicator 4 includes a hopper 26 for storing fertilizer.
0 and a feeder 261 for feeding the fertilizer in the hopper downward.
And the fertilizer fed from the feeder is introduced into a ditch for planting seedlings.
And a fertilizer application pipe 262. Fertilizer pipe 262
Is the lower surface of the empty box collection unit and the seedling box feeder 1
4 and extends downward along the front part of the seedling box feeder 14.
And the input case 151 or the transmission case of the transmission case 10.
Extending rearward between the moving pipes 152 and 152,
Fertilizer discharge port 263 is in the field scene inside
I'm coming. At the time of the planting operation, the planting section 3 was moved to the position shown in FIG.
When the machine 2 is started down, the planting section 3
And the fertilizer application device 4 is driven, and
Fertilizer is supplied to the ditch for planting seedlings
The seedlings are planted immediately afterwards. [0069] 【The invention's effect】As is apparent from the above description, the present invention
Seedling plantReverse transport after removing seedlings from seedling box
To return the empty seedling box to the transport start end.
Improved. The seedling box containing the seedlings is placed in the seedling box transport section 22.
Seedlings easily fall off when transported to the U-shaped inverted transport section
However, in the present invention, the sheet is conveyed to the U-shaped reversal conveyance section.
Before the seedlings are removed from the seedling box,
For example, the possibility that the seedlings would fall out of the seedling box was reduced.
Also,The seedling box is transported with the downward inclination angle in the transport direction of the seedling box mounting part 21
Inclination angle of the seedling box supply side portion up to the seedling removal position of the sending unit 22
Seedling box containing seedlings
Problems such as deformation of the seedling box, deviation of the seedlings, etc.
Is unlikely to occur. Further, in the transport section on the return side of the seedling box,
From the U-shaped reversal conveyance section to the empty box storage section 23
Corner to the seedling removal position in the transfer section on the seedling box supply side
Steeper than the downward inclination angle of
By placing the seedling box on the lower side of the mounting part 21,
Empty box can be arranged without dead space
Shortening the overall length while maintaining the space of the accommodation
I was able to.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall side view of a rice transplanter according to one embodiment of the present invention. FIG. 2 is a side view of the planting section. FIG. 3 is a plan view of a planting section. FIG. 4 is a plan view of a seedling box. FIG. 5 is a view taken in the direction of arrow A in FIG. 4; FIG. 6 is an enlarged plan view of a seedling raising pot. FIG. 7 is a sectional view taken along the line BB in FIG. 2; FIG. 8 is a sectional view taken along the line CC in FIG. 2; FIG. 9 is a view as seen from an arrow D in FIG. 2; FIG. 10 is a view as seen from an arrow E in FIG. 2; FIG. 11 is an explanatory diagram showing an operation of a seedling box discharge section. FIG. 12 is a side view of the seedling box automatic feeder. 13 is a view as viewed from the direction of the arrow F in FIG. FIG. 14 is a first explanatory diagram of the seedling feeding operation. FIG. 15 is a second explanatory diagram of the seedling feeding operation. FIG. 16 is a third explanatory diagram of the seedling feeding operation. FIG. 17 is an operation explanatory view 1 of the seedling box manual feeding device. FIG. 18 is a second explanatory diagram of the operation of the seedling box manual feeding device. FIG. 19 is a third explanatory view of the operation of the seedling box manual feeding device. FIG. 20 is a side view of the seedling pushing device. FIG. 21 is a developed plan view of the seedling pushing device. FIG. 22 is a side view of the seedling delivery device. FIG. 23 is a view as viewed in the direction of the arrow G in FIG. 22. 24 is a view as viewed in the direction of the arrow H in FIG. 22. 25 is a sectional view taken along the line I in FIG. 24 . FIG. 26 is a side view of the seedling transport belt. 27 is a view as viewed in the direction of the arrow M in FIG. 26 . FIG. 28 is a first diagram illustrating the operation of the seedling transport belt. FIG. 29 is a second explanatory diagram of the operation of the seedling transport belt. FIG. 30 is a side view of a rubber guide. FIG. 31 is a front view of a rubber guide. FIG. 32 is a side view of the transmission case. FIG. 33 is a plan view of a transmission case. FIG. 34 is a developed sectional view of the transmission box. FIG. 35 is a view showing a driving mechanism of a seedling hitting cam. FIG. 36 is a view showing a drive mechanism of a seedling pushing pin operating shaft. FIG. 37 is a time chart showing the operation timing of each operation unit. [Description of Signs] 1 Rice transplanter 2 This machine 3 Planting unit 4 Fertilizer application device 5 Link device 10 Transmission case 11 Seedling supply device 12 Planting device 14 Seedling box feeder 15 Seedling box automatic feeding device 16 Seedling pushing device 17 Seedling delivery Device 18 Seedling conveyor belt 153c Transmission box 158 Planting device mounting shaft 300 Seedling box 310 Seedling

Continuing from the front page (72) Inventor Tetsu Kato 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (72) Inventor Masafumi Saeki 1 Engineering Department, Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. Inventor Takashi Suzuki 1 Engineering Department, Yasushi Agricultural Machinery Co., Ltd., Iseki Agricultural Machinery Co., Ltd. (72), Iseki Agricultural Machinery Co., Ltd. JP-A-63-185305 (JP, A) JP-A-55-100 (JP, A) JP-A-4-173005 (JP, A) JP-A-5-91810 (JP, A) JP-A-3-71709 (JP) , U) Actually open 1979-135320 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims 1] In a seedling planting machine in which seedlings are loaded into a planting section together with a seedling box, a seedling box feed stand 14 serving as a seedling box transport path.
The seedling box containing the seedlings is loaded therein, and the seedling box placing part 21 for placing the seedling box thereon, and the seedling box placed on the seedling box placing part 21 are conveyed downward and inclined, and then inverted into a U-shape. Seedling box transport section 22 for transporting and transporting uphill, and empty box receiving section 23 for storing empty seedling boxes transported by the seedling box transport section 22
The door is provided, configured to seedlings position before being conveyed to the U-shaped reverse conveying portion of the seedling box conveyance unit 22 is taken out from the seedling box, seedling box conveyance upstream side than out preparative該苗position The transport section on the supply side, the lower transport side as the transport section on the seedling box return side,
The inclination angle of the seedling box mounting part 21 in the conveying direction is set to
The descending inclination angle up to the seedling removal position in the transport unit 22
The seedling box return side
From the U-shaped reverse transfer section to the empty box storage section 23
Of the seedling in the transfer section on the seedling box supply side
Set it steeper than the downward inclination angle to the position
A seedling transplanter characterized in that the storage part is located below the seedling box mounting part 21 .