JP2003204710A - Seedling planting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling planting machine solving the problems that conventional planting machines designed to be loaded with seedlings inclusive of seedling boxes is complicated in seedling conveying path, the relevant operability being problematic; further, depending on the configuration of such a path, an unreasonable force is applied on the seedling boxes, resulting in their deformation and/or seedlings' slipping off the boxes. <P>SOLUTION: This seedling planting machine includes a seedling box platform 21, a seedling box conveying section 22 functioning to convey seedling boxes placed on the platform 21 slantly downward and then slantly upward upon making a U-shaped reverse conveyance, and an empty box containing section 23 for containing empty boxes conveyed by the section 22. Seedlings are removed from the seedling boxes at a position prior to their conveyance to the U-shaped reverse conveyance point of the section 22, thus serving the upstream side of the seedling-removing position as a conveying section at the side of seedling box feed, while the downstream side as a conveying section at the side of seedling box return, and the angle of downward inclination in the conveying direction at the first half of the former conveying section is set to be smaller than that at the latter half. <P>COPYRIGHT: (C)2003,JPO

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for loading a planting section together with a seedling box.
Of the transmission system in the planting section of a rice transplanter
Is what you do. 2. Description of the Related Art Seedlings are raised in seedling boxes in which a plurality of pots are juxtaposed.
The seedlings are loaded into the planting section together with the seedling box, and a pot seedling is removed from the seedling box.
There is a rice transplanter 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.
Is to be paid. [0003] The planting of the conventional rice transplanter described above.
Attached sections include seedling feeders, seedling extruders, seedling transport belts,
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 transfer route, 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. Thus, the present invention provides a method for constructing
Husbands should make sure that the above problems do not arise.
It is an issue. [0004] To solve the above-mentioned problems,
Therefore, the present invention is configured as follows. That is, in the present invention
Such a seedling transplanter is designed so that seedlings are loaded into a planting section together with a seedling box.
Seedling box feeder 1 serving as a seedling box transport route
A seedling box containing seedlings is loaded in 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 transport unit 22 that transports the plant at an angle, and the seedling box transport 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 conveyance section of the seedling box conveyance section 22
So that the seedlings are removed from the seedling box at the position before being transported by
And supply the seedling box from the picking position to
And the lower transport side is the transport section on the return side of the seedling box.
In the transport direction in the first half of the transport section on the seedling box supply side
The inclination angle is set to the inclination angle of the rear half of the transport section on the seedling box supply side.
It is characterized by being set gently. [0005] A seedling box feeding device, a seedling pushing device, which is a seedling supply-related device.
The plant, the seedling transport belt and the drive mechanism of the seedling delivery device are planted.
At the end side of the power take-out part of the planting rod in the attachment transmission system
Since they are arranged together, the phase shift of each of these devices is small.
It is less expensive and the operation timing is less disturbed. FIG. 1 is an overall side view of a rice transplanter according to an embodiment of the present invention.
FIG. This rice transplanter 1 is a four-wheeled vehicle
Is equipped with a 6-plant planting section 3 and fertilizer 4
The whole is configured as a riding type fertilizer rice transplanter. Planting department
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. In addition, phosphorus
The lock device 5 is moved up and down by a hydraulic cylinder 6. 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 designated 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 by the number of planting strips.
Have been. Growing seedlings for planting in pot-type seedling boxes
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 a state of being aligned vertically and horizontally.
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 having an increased interval between
The same 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
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
07 has a tip portion 309 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, ...
Pour the soil into the seedlings until the seedlings reach a certain size.
Nurture in. This rice transplanter 1 is connected to a seedling supply device 11 with a seedling box.
The seedling supply device is configured to load seedling boxes.
Seedling box feeder 14 serving as a route, seedling box provided on the seedling box feeder
At the seedling pushing position of the automatic feeder 15 and the seedling box feed stand 14, the seedlings
Seedling pushing device 16 for pushing seedlings out of a box, said seedling pushing device
The seedlings extruded by
The seedling delivery device 17 to be passed, received from the seedling delivery device
Seedling transfer belt for transferring seedlings to the seedling picking position of the planting device 12
18 and so on. 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 stages, 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, and
At the lower end of the entry section, fit the rear end of the lower seedling box placing section 21 (B).
I'm shedding. Then, the seedling box transport section 22 is
Connected to the beginning of the The seedling box transport section 22 is substantially U in side view.
It has a U-shape, and its U-shaped rear end is the starting end,
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
It has a space that can be stacked and held. The flow of the seedling box is described below.
The seedling box 300 placed at 21 starts the seedling box transport section 22.
It is sent from the end side to the terminal side, and from the terminal end of the seedling box transport section 22
The released seedling boxes are collected in the empty box storage unit 23. This seedling
The transport of the boxes is performed by the automatic seedling box feeder 15, and the seedling boxes are transported.
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 the 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 mounting part 21 (B)
The seedlings are sent to the box transport section 22 and the lower seedling box mounting section 21 (B)
If there is no seedling box, the upper seedling box mounting part 21 (A)
Is transferred to the seedling box transport section 22. [0012] From the front end of the seedling box mounting section 21 to the seedling box transport section 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 part of the seedling box mounting part 21 is
To prevent unnecessary load from being applied to 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
When the inclination angle θ1 is compared with the inclination angle θ2 of the return side
The return side has a steeper slope than the supply side.
(Θ1> θ2). This is for the following reason. Sandals
Since the supply side transports the seedling box containing the seedlings,
There is a limit on the degree of inclination so that it does not fall,
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 for shortening the overall length of the aircraft.
As is clear from FIG.
No space is required. 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 lower surface side, the center of the left and right supports seedling boxes
A ridge 32 that 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 300
The box is placed so as to be aligned with the left and right centers of the box placing section 21.
The seedling pots 301,.
In addition to supporting the bottom surface, the ridges 32 are
The seedling box 300 is shifted to the 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 portions. 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 passes 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 with mounting plates 39, 39 integrally formed at the place
40, 40, and support plates 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 as seen from an 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, the bottom plate edge 44a and the 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
Is formed. The lower arc-shaped portion of the seedling box transport section 22 is a
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 of the box transport unit 22 is located on the left side along the upper surface of the seedling box.
Right pair of receiving pipes 48, 48, and boundary 306 of the seedling box
And a guide pipe 49 fitted on the back side of the
A 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. For this reason, the end of the seedling box transport section 22
Seed 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 collected in the empty box storage section 23 successfully. The automatic seedling box feeder 15 is shown in FIGS.
It is configured as shown in FIG. 50 is an automatic feed rod,
Claw hole 30 of seedling box inserted into opening 45a of presser fitting 45
8 has an automatic feeding claw 51 that engages with the lower wall surface. this
The automatic feed rod 50 is provided at a tip 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 feeding 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 has the opening 45a.
That is inserted into the upper part and engages with the upper wall surface 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 stopping rod 60 is pushed rightward, and the stopping claw 61 is
It comes off from the claw hole 308. In addition, restraint
When the rod 60 is pushed for a certain amount or more, this
The automatic feed pawl 51 is engaged with the engaging piece 50a and the pawl 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 into 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)
The box 300 is kept stationary. FIG. 15 shows a state in which the swing arm 53 swings upward.
And the automatic feed rod 50 moves upward,
The moving feed claw 51 slides along the upper wall surface of the claw hole 308, and
While 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 moving feed claw 51 is fitted into the claw hole 308. At this point
The stopper pawl 61 of the stopper rod 60 is out of the pawl hole 308.
You. In this state, the swing arm 53 is further rotated.
The automatic feeding claw 51 pushes down the lower wall surface of the claw hole 308
The seedling box 300 is transported 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 is provided with the automatic seedling box feeder 1.
5 is provided with a manual seedling box feeding device 69. FIG.
And 70 in FIG. 13 denotes a manual feed rod,
The manual lever 7 has a manual feed pawl 71 similar to the
3 via a torque spring 75 to a roller shaft 74 provided at an intermediate portion.
To the seedling box transport route side
I have. Normally, the manual feed rod 70 is shown in FIG.
In the cycle where the seedling box moves 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 from 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
The seedling box is transported by the manual seedling box 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.
And the stop rod 60 is engaged with the engagement 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 used 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 feed 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 are no seedling boxes 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
If seedling box 300 is loaded when empty, seedling box 300 will be 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.
Seedlings and seedling box feeder 1
5 can be prevented from causing trouble. Manual lever 7
3 and slightly raise the manual feed rod 71,
The engagement between the tip bent portion 76a of the upper arm and the projection 70a is out of engagement.
Since the manual feed rod 70 is free,
The seedling box can be dropped. When the seedling box falls,
The topper arm 76 is pushed to the position shown by the chain line. 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, immediately before the seedling feeding, the automatic feeding claws 51 and
When the stopping claw 61 comes off the claw hole 308, the seedling box 300
Is held by a leaf spring brake 65
However, when the weight of the upper seedling box is applied, 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. The stopper arm 76 is provided with the above-mentioned flow dividing mechanism.
Constitutes a part of. In other words, the combination of the upper and lower seedling box
A switching stopper 90 is rotatably provided in the flow portion 26,
The switching stopper and the stopper arm 76 are connected to the connecting rod.
It is connected at 91. The stopper arm 76 is shown in FIG.
When the switch stopper 90 is at the position of the chain line in FIG.
At the position of the line, carrying the seedling box of the upper seedling box mounting part 21 (A)
The transmission route is closed. For this reason,
Seedling box 300 placed on the seedling box placing part 21 (B) of the step
Is supplied to the seedling box transport section 22. Lower stage seedling box mounting part 21
The seedling box of (B) has been supplied, and the tail of seedling box 300 is
After passing through the topper arm 76, the stopper arm 76
In conjunction with this, the switching stopper 90 rotates to the position indicated by the solid line,
Since the seedling box transport route is opened, the upper seedling box mounting section 2
The seedling box placed in 1 (A) is supplied to the seedling box transport section 22
Will be done. The manual feed rod 70, which is a stopper for preventing falling,
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 decrease 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 is on a line passing through the seedling pushing position 27.
, The seedling push-out pins 100,.
The attached slide member 101 moves along the guide rod 102
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.
An engaging projection 107 protruding from one side surface is engaged. Times
The drive shaft 108 is also provided integrally with the drive shaft 104.
And a seedling pushing 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 seedlings in each section
Push out the pin 100 (7 in the example shown) and the right half of the seedling
The seedling push pins 100 (seven in the example shown) are separate
Attached to the slide members 101 (L) and 101 (R)
The seedling push-out pins 100,.
It operates alternately while maintaining the phase of 80 degrees
You. In addition, one unit is used in two articles, and these two articles
And the inner seedling push pins 100,... Operate simultaneously
And the outer seedling pushing 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 rotation shaft 104 (O) is fitted inside thereof.
I have. FIGS. 22 and 23 show a 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. Seedling holder 110 is, as shown in FIG.
Of seedling 310 corresponding to the seedling pushing pins 100,.
A semicircular recess at the bottom so that the portion 310a can fit
.. Are formed. Seedling delivery arm 111
Is moved forward and backward by a rotating frame 115 that rotates around a rotating shaft 114.
It is attached so that it can move forward and backward,
While swinging up and down within the range of JK at 0,
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.
And coat the surface with Teflon (registered trademark)
This is preferable because adhesion of mud and the like is small. Seedling delivery
The arm 111 is a tip of the left and right members 111a, 111a.
Are connected by a connecting member 111b, and a seedling holder is placed on the connecting member.
In this structure, a die 110 is attached. Such a structure
By adopting the structure, the seedling delivery arm 111 itself
The rigidity is improved and the seedling holder 110 is reinforced. As shown in FIG. 25, the right and left
L-shaped guide in the center from the top to the front
A groove 116 is formed, and is provided in front of the seedling box feeder 14.
The moving path of the seedling holder 110 is provided at the rear of the
The overhanging 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,
When the seedling holder 110 moves between KL, the guide bracket
Projecting portion 47a engages with the upper portion 116a of the guide groove,
Make sure that the seedling delivery arm 111 does not shift
Has become. Also, it faces the seedling delivery arm that has been moved down.
A seedling hitting tool 117 is provided at the position. This seedling striker
117 is inserted into the recesses 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
Until it moves forward 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 transfer device 17 is one of the seedling pushing devices 16.
/ 2 cycle, so the inner seedling push pin 100
The seedlings extruded in the step and extruded with the outer seedling pushing pins 100
Alternately transferring the transferred seedlings to the seedling transport belt 18
It 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
Pair of symmetrical timing belts 130 stretched around
(L) and 130 (R) form one set. timing
Three roller shafts 131 (1,
2,3) is slanted so that the front part is lower,
The feeding belt 18 is supported in a state of falling forward in a side view.
You. From the floor soil 310a of the seedling 310 to the tip of the leaf 310b
With a relatively wide belt width that can cover
Lower part of the outer peripheral surface of the belt 130, ie, the seedling floor 3
Sorting that sorts seedlings one by one into the area where 10a hits
Are provided at regular intervals q in the circumferential direction.
Also, in the circumferential direction from the separation projection, not more than half of the distance q.
At the bottom edge of the timing belt
Receiving projections 134,...
ing. The roller shaft 131 (1) at the lower center side is the drive shaft
Then, both timing belts 130 (L) and 130 (R)
It always moves in the direction of the arrow in FIG. Right and left
Ling belts 130 (L) and 130 (R) pass one seedling
136, which are separated by a
Has a seedling opening 137 at its lower end. This seedling opening
137, the seedlings are temporarily held, and
A pair of left and right rubber guys that serve as guides when pinching the seedlings
138, 138 are attached. Seedlings transferred by the seedling transfer device 17
The seedling group (seven) 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 The 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
With the movement of the timing belt 130, the seedlings 310,.
There is no interval between left and right timing belt 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 the supply timing of the seedlings. The planting device 12 includes a planting device mounting shaft 15 described later.
The rotary case 140 that rotates about
Planting rods 141 and 141 are attached. Planted rod 1
41 is provided with a seedling holding claw 142 and a seedling pushing tool 143,
While the attached rod moves up and down while drawing a predetermined trajectory 144,
At the top of the trace, 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 seedling.
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 the front and rear. Seedling transport
The seedlings dropped from the feeding belt 18 are placed on the ribs 147 and 147.
Therefore, it is in a supported state, and the seedling holding claws 142 are 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 not easily damaged. Also, slit 1
46, the rubber guides 138, 13
8 has no effect on the base even if the tip is pushed out.
137 to prevent the seedlings from falling
it can. The planting 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.
Gears 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 shaft 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.
The transmission is made 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 transfer 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 this.
4 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), 131 (1) of each strip are
It is designed to rotate in the opposite direction. One end of the seedling transfer 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 swing mechanism of the transfer arm will be described. The rotation axis
A swing arm 191 is provided integrally with the swing arm 114.
Pin 193 with guide hole 192 in 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 and 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 varied. 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 9 and 200 are fitted
2 is provided so as to be freely rotatable. Crank 1
The rotation of the arm 90 causes the swing arm 191 to swing.
The seedling delivery arm 111 moves up and down, but
The swing range of the arm 191 is determined by 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. Excessive crank operation
Is absorbed by the springs 196 and 197. And
Therefore, the seedling receiving position H and the seedling releasing position
At a certain J, the vertical movement of the seedling transfer arm 111 is
And the delivery of the seedlings is ensured.
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 operation 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.
A coil spring is attached to the pushing 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 tapping tool with seedling hitting cam 220 and cam follower 221
117 is returned to the original position. Incidentally, the operation of the seedling striker 117 is instantaneous.
Must be performed,
For this purpose, the drive mechanism has the configuration shown in FIG. Sandals
The cam 220 is composed of a peak 220a and a valley 220b.
Roller 221 falls from the peak 220a to the valley 220b.
At the time of insertion, 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 operation amount of 222 is α1, and the cam 220
Is β1. However, the roller 221 is
The amount of rotation of the cam 220 when passing through the corner 220c
Sufficient movement of the seedling strike arm 222 is not obtained.
So, this part is play, seedling strike arm 2
The movement range α2 of 22 (rotation range β2 of cam 220) is
The hitting 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 push rod 109 (I) is attached,
Seedling push-out pin Actuator 175 (O) Seedling push-out arm
An extrusion rod 109 (O) is attached. The drive mechanism of the seedling pushing 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) has the same 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 pin operating shaft 175 is provided in phase with each other
Roller supporting arm, the roller corresponding to the extrusion cam 232
Roller 2 corresponding to roller 236 and 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 side of the seedling transfer device drive shaft 171
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.
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 pushing stopper 233 makes one rotation while the 32 makes two rotations.
You. Therefore, when the seedling box feed drive shaft 172 makes one rotation,
At one time, the seedling pushing pin 100 protrudes at a rate of once. 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 seedling push pin for outside are 180 degree 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 feed operation arm 242 is attached to the protrusion,
The rear end of the seedling feed rod 58 is rotated by one end of the arm.
And a seedling feed rod 5 at the other end.
The spring 243 acting in the direction for pushing the front 8 forward is
Are tied up. (Shown in FIG. 2) The seedling feed swing arm
It is the spring 243 that rotates 53 in the seedling feeding direction.
The seedling feed cam 240 and the
This is performed by the mufoloer 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 each has 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 part 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 for 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) The "seedling picking positions" a1 to a14
The seedling holding claw 142 of the rod 141 passes through the seedling collecting hole 137.
Shows timing. (2) The "implantation rod stop positions" b1 to b14
Tie where the planting device 12 stops when the planting clutch is disengaged
The planting rod 141 has passed the seedling opening 137 slightly.
Stop at a break. (3) “Seedling box feed” is the movement of the automatic feed claw 51
Moved upwards at c1 and switched to downwards at c2
The operation stops at c3. When the feed claw 51 moves down
Move the seedling box one pitch. (4) Regarding “seedling extrusion”, d 1 -d
The seedling push pin 100 protrudes between the two, and the seedling between the d3 and d4
The push pin 100 retreats. Inner seedling extrusion 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) "Rotation of seedling transfer arm"
The seedling delivery arm 111 moves downward between e1 and e2,
The seedling delivery arm 111 moves up between 3 and e4. Figure
It cannot be clearly identified from the imming chart, but moves down
The operation speed is slightly slower when moving up than when moving up.
ing. This is because the seedling holder 110
To prevent release or displacement of seedlings
That's why. (6) Regarding “seedling delivery arm slide”
The seedling delivery arm 111 moves forward between f1 and f2,
The seedling transfer arm 111 retreats between f3 and f4. 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
Of the seedling transfer arm 111 is moved to the lower position.
It takes place during some time. (7) With regard to “sapling of seedling”, g 1 -g 2
Seedling striker 117 moves downward, and seedling striker falls between g3 and g4.
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) in crop
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) When the operation is stopped, the planting rod 141
Stop at any of the implantation rod stop positions b1 to b14,
When the push pin 100 is inserted into the pot of the seedling box
Cannot pull out the seedling box from the seedling box feed stand 14.
Then, the seedling pushing device 14 is in a non-operation state, and the seedling box
Seed box extraction OK run indicating that extraction 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).
Lights up between d4 and d1, otherwise
Is turned off. (10) Feeding of seedling box and pushing of seedling (inside)
By making the movement start time almost the same,
100 tips are completely inserted into seedling extrusion hole 303 (d5)
The stopping claw 61 comes off from the claw hole 308 of the seedling box
There is a slight time difference (about 18 degrees 30 minutes) by (c4)
The seedling box is prevented from falling down. (11) The automatic feed pawl 51 is moving upward.
(C1-c2) during the run (inside in the example shown)
Seedling push-out pin 100 moves forward and backward. Automatic feed claw 5
When 1 starts to move upward, 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 into the
Even the seedling box does not slip. 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 transplantation 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 that detects 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 that feeds the fertilizer in the hopper downward.
And the fertilizer fed from the feeder into a groove for planting seedlings.
And a fertilizer application pipe 262. Fertilizer pipe 262
Is the lower part of the empty box collection part and the seedling box feeder 1
4 and extends downward along the front 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,
The fertilizer discharge port 263 is located in the field scene inside the groove generator 251.
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 moved down to the operating position and the machine 2 is started, the planting section 3
And the fertilizer application device 4 is driven, and
Fertilizer is supplied to the seedling ditch formed in
The seedlings are planted immediately afterwards. As described above, according to the present invention,
The rice transplanter is a power take-out part of the planting rod in the planting part transmission system.
The drive mechanism of the equipment related to the seedling supply
Of the operation timing of each of these devices
Seedlings are accurately supplied to the seedling collecting position of the planting rod.
Now you can.

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 viewed 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 feeding device. 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 manual seedling feeding device. FIG. 18 is a second explanatory diagram of the operation of the manual seedling feeding device. FIG. 19 is a third explanatory view of the operation of the manual seedling 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. 23 is a view as viewed in the direction of the arrow G in FIG. 22. 24 is a view as viewed from the direction of the arrow H in FIG. 22. 25 is a sectional view taken along the line I in FIG. 22. FIG. 26 is a side view of the seedling transport belt. FIG. 27 is a view as viewed in the direction of the arrow M in FIG. 25. FIG. 28 is a first explanatory diagram of 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 feed stand 15 Seedling box feeding device 16 Seedling pushing device 17 Seedling delivery device 18 Seedling transport belt 153c Transmission box 158 Planting device mounting shaft 300 Seedling box 310 Seedling

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[Procedure amendment] [Submission date] January 14, 2003 (2003.1.1
4) [Procedure amendment 1] [Document name to be amended] Statement [Correction target item name] Full text [Correction method] Change [Correction contents] [Document Name] Statement [Title of the Invention] Seedling plant [Claims] 1. A seedling is loaded into a planting section together with a seedling box.
Seedling box feeder 14 serving as a seedling box transport path
Seedling box in which seedlings containing seedlings are loaded and the seedling box is placed
The placing section 21 and the seedling box placed on the seedling box placing section 21 are moved downward.
Conveyed on a slopeDoSeedling box transport section 22WhenThe seedling box
Transport unit 22soConfigured so that seedlings can be removed from the seedling boxI,
The seedling removal position27More transport sideOf the seedling box transport section 22
For detecting that the tail of the seedling box has passed the appropriate position
In conjunction with this, the next seedling box is supplied to the seedling box transport section 22.
The switching means 90 for switching the seedling box carrying section 21
On the roadA seedling transplanter characterized by that: DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to loading a seedling box in a planting section.
I tried toSeedling plantIt is about. [0002] 2. Description of the Related Art Seedlings are raised in a seedling box in which a plurality of pots are juxtaposed.
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 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 INVENTIONSeedlingPlanting plant
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. Thus, the present invention provides a method for constructing
Husbands should make sure that the above problems do not arise.
It is an issue. [0004] Means for Solving the Problems To solve the above problems,
Therefore, the present invention is configured as follows. Ie,For planting
In a seedling transplanter in which seedlings are loaded together with seedling boxes,
A seedling box containing seedlings is placed on a seedling box feeder 14 serving as a transport route.
A seedling box mounting part 21 for loading the seedling box,
The seedling box placed on the tray 21 is conveyed with a downward slope.DoSeedling box
Transport unit 22WhenAnd the seedling box transport section 22soIs the seedling box
Configured to be taken outI, The seedling removal position27Than
Good transfer sideOf the seedling box transport section 22
In conjunction with the detection that the tail has passed, the next seedling box is
Switching means 90 for switching to a state of supplying to box transport section 22
Is provided in the seedling box transport path of the seedling box mounting portion 21.It is characterized by
Seedling planting machine. [0005] [Action]The seedling box containing the seedlings is placed on the seedling box placing part 21.
And the seedling box is supplied from the seedling box placing section 21 to the seedling box transport section 22
Then, the seedlings are conveyed at a downward inclination in the seedling box conveying section 22.
The seedlings are removed from the seedling box at the seedling removal position 27 on this transport route.
Remove and plant in the field. The previous seedling box is the seedling box mounting part 21
Is supplied to the seedling box transport section 22, and the last of the previous seedling box is the seedling.
Suitable for the seedling box transport section 22 on the upstream side from the extraction position 27
When the vehicle has not passed through the position of
The next seedling box to be filled is once received by the switching means 90,
The next seedling box is used as it is in the seedling box
It will be supplied to the position and will give a big impact to the seedling box ahead
Evil can be prevented. Then, the last of the seedling box is the seedling
When passing through the appropriate position of the box transport section 22, the switching means
90, the next seedling box placed on the seedling box
The seedling box is switched to a state in which the seedling box is supplied to the box transport section 22, and the seedling box is
Can be supplied to the transport unit 22. [0006] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG.Seedling planterOne example of a rice transplanter
It is a whole side view. This rice transplanter 1 is a four-wheeled traveling vehicle.
This plant 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.
Seedlings that supply seedlings one by one to the designated seedling collecting position
The supply device 11 and the seedlings supplied to the seedling collecting position
The planting devices 12 to be planted on the surface are assembled as many as the number of planting strips.
Have been. Seedlings for planting are grown in pot-type seedling boxes.
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 having an increased interval between
The same 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
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. This rice transplanter 1 is connected to a seedling supply device 11 with a seedling box.
The seedling supply device is configured to load seedling boxes.
A seedling box feeder 14 serving as a route, a seedling box provided on the seedling box feeder
At the seedling pushing position of the automatic feeder 15 and the seedling box feed stand 14,
Seedling pushing device 16 for pushing seedlings out of a box, said seedling pushing device
The seedlings extruded by
The seedling delivery device 17 to be passed, received from the seedling delivery device
Seedling transfer belt for transferring seedlings to the seedling picking position of the planting device 12
18 and so on. 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 section, fit the rear end of the lower seedling box placing section 21 (B).
I'm shedding. Then, the seedling box transport section 22 is
Connected to the beginning of the 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
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.
It is sent from the end side to the terminal side, and from the terminal end of the seedling box transport section 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 the 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 mounting part 21 (B)
The seedlings are sent to the box transport section 22 and the lower seedling box mounting section 21 (B)
If the seedling box is no longer available, the upper seedling box mounting part 21 (A)
Is transferred to the seedling box transport section 22. [0012] From the front end of the seedling box mounting section 21 to the seedling box transport section 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 part of the seedling box mounting part 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
When the inclination angle θ1 is compared with the inclination angle θ2 of the return side
In this case, the slope on the return side is steeper than on the supply side.
(Θ1> θ2). This is for the following reason. Sand
Since the supply side transports the seedling box containing the seedlings,
There is a limit on the degree of inclination so that it does not fall,
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 for shortening the overall length of the aircraft.
As is clear from FIG.
No space is required. 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 lower surface side, the center of the left and right supports seedling boxes
A ridge 32 that 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 300ToSeedling box
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 ridges 32 form the back surface of the boundary 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 portions. 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 passes 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 with mounting plates 39, 39 integrally formed at the place
40, 40, and support plates 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 as seen from an 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, the bottom plate edge 44a and the 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
Is formed. The lower arc-shaped portion of the seedling box transport section 22 is a
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 of the box transport unit 22 is located on the left side along the upper surface of the seedling box.
Right pair of receiving pipes 48, 48, and boundary 306 of the seedling box
And a guide pipe 49 fitted on the back side of the
A 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. For this reason, the end of the seedling box transport section 22
Seed 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 collected in the empty box storage section 23 successfully. [0018]Seedling box automaticFIG. 12 and FIG.
It is configured as shown in FIG. 50 is an automatic feed rod,
Claw hole 30 of seedling box inserted into opening 45a of presser fitting 45
8 has an automatic feeding claw 51 that engages with the lower wall surface. this
The automatic feed rod 50 is provided at a tip 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 feeding 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 has the opening 45a.
That is inserted into the upper part and engages with the upper wall surface 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 stopping rod 60 is pushed rightward, and the stopping 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 feed pawl 51 is engaged with the engaging piece 50a and the pawl 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 into 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)
The box 300 is kept stationary. FIG. 15 shows a state in which the swing arm 53 swings upward.
And the automatic feed rod 50 moves upward,
The moving feed claw 51 slides along the upper wall surface of the claw hole 308, and
While 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 moving feed claw 51 is fitted into the claw hole 308. At this point
The stopper pawl 61 of the stopper rod 60 is out of the pawl hole 308.
You. In this state, the swing arm 53 is further rotated.
The automatic feeding claw 51 pushes down the lower wall surface of the claw hole 308
The seedling box 300 is transported 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,
The manual lever 7 has a manual feed pawl 71 similar to the
3 via a torque spring 75 to a roller shaft 74 provided at an intermediate portion.
To the seedling box transport route side
I have. Normally, the manual feed rod 70 is shown in FIG.
In the cycle where the seedling box moves 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 from 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. In addition, 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.
And the stop rod 60 is engaged with the engagement 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 are no seedling boxes 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
If seedling box 300 is loaded when empty, seedling box 300 will be 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 22AutomaticSending 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,
The bent portion 76a of the stopper arm engages with the projection 70a.
And the manual feed rod 70 becomes free,
The seedling box that has been dropped can now be dropped. When the seedling box falls
The stopper arm 76 is pushed to the position shown by the dashed 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. The stopper arm 76 is provided with the above-mentioned flow dividing mechanism.
Is part of. In other words, the combination of 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 seedling box placing part 21 (B) in the lower stage.
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 last of the 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.
The seedling box transport path is opened, so the seedling box
The seedling box placed on the tray 21 (A) is
Will be supplied to The manual feed rod 70, which is a stopper for preventing falling,
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 decrease 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 push-out 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.
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 pushing 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 seedlings in each section
Push out the pin 100 (7 in the example shown) and the right half of the seedling
The seedling push pins 100 (seven in the example shown) are separate
Attached to the slide members 101 (L) and 101 (R)
The seedling push-out pins 100,.
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 push 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 rotation 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. Seedling holder 110 is, as shown in FIG.
Of seedling 310 corresponding to the seedling pushing pins 100,.
A semicircular recess at the bottom so that the portion 310a can 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.
And the surfacecoatingThen, there is little adhesion of mud etc.
It is preferable. Seedling delivery arm 111
The leading ends of the members 111a, 111a are connected by connecting members 111b.
And the seedling holder 110 was mounted on the connecting member.
It has a structure. By adopting such a structure
The rigidity of the seedling transfer arm 111 itself is improved.
The seedling holder 110 is reinforced. As shown in FIG. 25, the right and left
L-shaped guide in the center from the top to the front
A groove 116 is formed, and is provided in front of the seedling box feeder 14.
The moving path of the seedling holder 110 is provided at the rear of the
The overhanging 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,
When the seedling holder 110 moves between KL, the guide bracket
Projecting portion 47a engages with the upper portion 116a of the guide groove,
Make sure that the seedling delivery arm 111 does not shift
Has become. Also, it faces the seedling delivery arm that has been moved down.
A seedling hitting tool 117 is provided at the position. This seedling striker
117 is inserted into the recesses 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
Until it moves forward 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 transfer device 17 is one of the seedling pushing devices 16.
/ 2 cycle, so the inner seedling push pin 100
The seedlings extruded in the step and extruded with the outer seedling pushing pins 100
Alternately transferring the transferred seedlings to the seedling transport belt 18
It 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
Pair of symmetrical timing belts 130 stretched around
(L) and 130 (R) form one set. timing
Three roller shafts 131 (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
Sorting seedlings one by one into the area where 310a hits
Are provided at equal intervals q in the circumferential direction.
Both are the projections133, ...From the circumferential distance from
The lower end of the timing belt at a position shifted by の of q
Receiving protrusions 134 which receive the bottom of the floor soil portion 310a at the edges,
... is 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
It has become. The seedling opening 137 holds the seedling once
PostscriptImplantation rodGuide when 141 holds a 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 (seven) 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 The 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
With the movement of the timing belt 130, the seedlings 310,.
There is no interval between left and right timing belt 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 the supply timing of the seedlings. The planting device 12 includes a planting device mounting shaft 15 described later.
The rotary case 140 that rotates about
Implantation rod141 and 141 are attached.Implantation rod1
41 includes a seedling holding claw 142 and a seedling pushing tool 143;Planting
Rod 141Moves up and down while drawing a predetermined trajectory 144
In the upper part of the trajectory, the seedling holding claw 142
8 while holding the seedlings supplied at the bottom of the track.
The pusher 143 pushes out the held seedlings.
So that the seedlings can be planted one by one in the field
Is configured. 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 the front and rear. Seedling transport
The seedlings dropped from the feeding belt 18 are placed on the ribs 147 and 147.
Therefore, it is in a supported state, and the seedling holding claws 142 are 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 not easily damaged. Also, slit 1
46, the rubber guides 138, 13
8 has no effect on the base even if the tip is pushed out.
137 to prevent the seedlings from falling
it can.Implantation rod141 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.
Gears 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 shaft 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.
The transmission is made 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 transfer 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 this.
4 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), 131 (1) of each strip are
It is designed to rotate in the opposite direction. One end of the seedling transfer 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 swing mechanism of the transfer arm will be described. The rotation axis
A swing arm 191 is provided integrally with the swing arm 114.
Pin 193 with guide hole 192 in 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 and 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 varied. 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 9 and 200 are fitted
2 is provided so as to be freely rotatable. Crank 1
The rotation of the arm 90 causes the swing arm 191 to swing.
The seedling delivery arm 111 moves up and down, but
The swing range of the arm 191 is determined by 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. Excessive crank operation
Is absorbed by the springs 196 and 197. I
Therefore, the seedling receiving position H and the seedling releasing position
At a certain J, the vertical movement of the seedling transfer arm 111 is
And the delivery of the seedlings is ensured.
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 operation 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.
A coil spring is attached to the pushing 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 tapping tool with seedling hitting cam 220 and cam follower 221
117 is returned to the original position. Incidentally, the operation of the seedling striker 117 is instantaneous.
Must be performed,
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.
At the time of insertion, 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 operation amount of 222 is α1, and the cam 220 required for the operation amount is α1.
Is β1. However, the roller 221 is
The amount of rotation of the cam 220 when passing through the corner 220c
Sufficient movement of the seedling strike arm 222 is not obtained.
So, this part is play, seedling strike arm 2
The movement range α2 of 22 (rotation range β2 of cam 220) is
The hitting 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 push rod 109 (I) is attached,
Seedling push-out pin Actuator 175 (O) Seedling push-out arm
An extrusion rod 109 (O) is attached. The drive mechanism of the seedling pushing 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) has the same 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 pin operating shaft 175 is provided in phase with each other
Roller supporting arm, the roller corresponding to the extrusion cam 232
Roller 2 corresponding to roller 236 and 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 side of the seedling transfer device drive shaft 171
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.
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 pushing stopper 233 makes one rotation while the 32 makes two rotations.
You. Therefore, when the seedling box feed drive shaft 172 makes one rotation,
At one time, the seedling pushing pin 100 protrudes at a rate of once. 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 seedling push pin for outside are 180 degree 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 feed operation arm 242 is attached to the protrusion,
TheSeedling feed operation arm 242Seedling feed rod 58 at one end of
The rear end is rotatably connected and the other end
That act in a direction to push 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 performed by the pulling 243, and the rotation in the return direction is
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 each has 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 part 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 for 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) The "seedling picking positions" a1 to a14
The seedling holding claw 142 of the rod 141 passes through the seedling collecting hole 137.
Shows timing. (2) The "implantation rod stop positions" b1 to b14
Tie where the planting device 12 stops when the planting clutch is disengaged
The planting rod 141 has passed the seedling opening 137 slightly.
Stop at a break. (3) “Seedling box feed” is the movement of the automatic feed claw 51
Moved upwards at c1 and switched to downwards at c2
The operation stops at c3.AutomaticFeeding claw 51 moves down
At this time, move the seedling box by one pitch. (4) Regarding “seedling extrusion”, d 1 -d
The seedling push pin 100 protrudes between the two, and the seedling between the d3 and d4
The push pin 100 retreats. Inner seedling extrusion 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) "Rotation of seedling transfer arm"
The seedling delivery arm 111 moves downward between e1 and e2,
The seedling delivery arm 111 moves up between 3 and e4. In the figureTa
Im chartCan not be clearly identified from the
Is slightly slower than when moving up
I have. This is because the seedlings held in the seedling holder 110
To prevent release or misalignment
It is. (6) Regarding “seedling delivery arm slide”
The seedling delivery arm 111 moves forward between f1 and f2,
The seedling transfer arm 111 retreats between f3 and f4. 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
Of the seedling transfer arm 111 is moved to the lower position.
It takes place during some time. (7) With regard to “sapling of seedling”, g 1 -g 2
Seedling striker 117 moves down between, and seedling striker falls between g3 and g4.
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) in crop
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) When work is stoppedImplantation rod141 is the above
Stop at any of the implantation rod stop positions b1 to b14,
When the push pin 100 is inserted into 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).
Lights up when it is between d4 and d1, otherwise
Is turned off. (10) Feeding of seedling box and pushing of seedling (inside)
By making the movement start time almost the same,
100 tips are completely inserted into seedling extrusion hole 303 (d5)
The stopping claw 61 comes off from the claw hole 308 of the seedling box
There is a slight time difference (about 18 degrees 30 minutes) by (c4)
The seedling box is prevented from falling down. (11) The automatic feed pawl 51 is moving upward.
(C1-c2) during the run (inside in the example shown)
Seedling push-out pin 100 moves forward and backward. Automatic feed claw 5
When 1 starts to move upward, 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 slip. 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 transplantation 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 that detects 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 that feeds the fertilizer in the hopper downward.
And the fertilizer fed from the feeder into a groove for planting seedlings.
And a fertilizer application pipe 262. Fertilizer pipe 262
Is the lower part of the empty box collection part and the seedling box feeder 1
4 and extends downward along the front 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,
The fertilizer discharge port 263 is located in the field scene inside the groove generator 251.
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 moved down to the operating position and the machine 2 is started, the planting section 3
And the fertilizer application device 4 is driven, and
Fertilizer is supplied to the seedling ditch formed in
The seedlings are planted immediately afterwards. [0069] 【The invention's effect】Seedling box on the better side of transport from seedling removal position 27
The tail of the previous seedling box has passed the appropriate position of the transport unit 22
The next seedling box is supplied to the seedling box transport section 22 in conjunction with the detection of the
The switching means 90 for switching to the feeding state is provided with the seedling box
Is set in the seedling box transport path,
The next seedling box to be moved is the position of the seedling box at the end of the seedling box transport section 22 as it is.
So that the seedling box at the tip of the box
Seedlings from the seedling box in the seedling box transport section 22
It can be prevented from falling off or the seedling box from being displaced.
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.
is there. 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 viewed 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: Seedling boxAutomaticIt is a side view of a 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.Seedling box manualFIG.
You. FIG.Seedling box manualFIG. 2 is an explanatory diagram of the operation of the feeding device.
You. FIG.Seedling box manualFIG. 3 is an explanatory view of the operation of the feeding device.
You. 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. 23 is a view as viewed in the direction of the arrow G in FIG. 22. 24 is a view as viewed from the direction of the arrow H in FIG. 22. FIG. 2524FIG. FIG. 26 is a side view of the seedling transport belt. FIG. 2726FIG. FIG. 28 is a first explanatory diagram of 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 an expanded sectional view of the transmission box. FIG. 35 is a view showing a drive mechanism of a seedling hitting cam. FIG. 36 is a diagram showing a drive mechanism of a seedling pushing pin operating shaft.
is there. FIG. 37 is a time chart showing the operation timing of each operation unit.
It is a chart. [Explanation of symbols]DESCRIPTION OF SYMBOLS 1 ... Rice transplanter, 3 ... Planting part, 14 ... Seedling box feeder, 21 ... Seedling
Box mounting section, 22: seedling box transport section, 27: seedling pushing position, 7
6: stopper arm, 90: switching stopper, 300: seedling
Box, 310 ... seedling

   ────────────────────────────────────────────────── ─── Continuation of front page    (72) Inventor Satoshi Kato             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. (72) Inventor Hideo Iseki             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. (72) Inventor Masafumi Saeki             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. (72) Inventor Manabu Namoto             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. (72) Inventor Takashi Suzuki             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. (72) Inventor Hisami Fukushima             1 Iseki Agricultural Machinery, 1 Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture             Engineering Department, Inc. F term (reference) 2B060 AA06 AC03 AD07 BA04 BA07                       BA09 CB07 CB11 CB17 CB23                       CB28 CC08                 2B064 AA05 AA07 AB07 AC07 EB20

Claims (1)

Claims: 1. A seedling box feeder 14 serving as a seedling box transport path in a seedling planter in which seedlings are loaded into a planting section together with a seedling box.
The seedling box containing the seedlings is loaded therein, and the seedling box placing portion 21 for placing the seedling box thereon, and the seedling box placed on the seedling box placing portion 21 are conveyed downward and inclined, and then inverted into a U-shape. Seedling box transporting section 22 for transporting and transporting it uphill, and empty box receiving section 23 for storing empty seedling boxes transported by the seedling box transporting section 22
So that the seedlings are taken out of the seedling box at a position before being conveyed to the U-shaped reversing conveyance section of the seedling box conveyance section 22. And the lower transport side is the transport section on the seed box return side,
A seedling transplanter characterized in that the inclination angle of the first half of the transport section on the seedling box supply side inclining direction is set to be gentle relative to the inclination angle of the second half section of the transport section on the seedling box supply side.