JP3298175B2 - Seedling box - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention extrudes seedlings in a pot.
For pushing out the seedlings to insert
Multiple pots with a slit at the bottom
It relates to a seedling box formed in a row .

[0002]

2. Description of the Related Art A conventional seedling box of this kind is provided with a section for pushing out a seedling.
Insert the timber into the pot from one end of the seedling box to the other.
Go in that order when going in order several times
The directions of the tears in the pots of the same direction are all the same
It was set to become.

[0003]

By the way, for extruding seedlings
When inserting the member into the pot, cut off the bottom of the pot.
Of the seedling is biased to a part of the member for pushing out the seedling.
I do. Therefore, a conventional seedling box having the above configuration is used.
The bottom of the pot at the bottom of the pot
Seedling extruded because the location where it comes into sliding contact with the member is always the same location
Parts are unevenly worn, and the whole is worn evenly.
All of them become sharp at an early stage. And that
Therefore, when extruding seedlings, sharpened seedlings for extruding seedlings
May not be able to push the seedlings properly by piercing the floor of
there were.

[0004] Therefore, in the present invention, in order to take out the seedlings
For pushing out the seedlings to be inserted through the slit at the bottom of the pot
Precise extrusion of seedlings to prevent uneven wear
Challenge to get a seedling box that can be used for a long time
And

[0005]

The present invention solves the above problems.
To solve the problem, press the seedlings to push the seedlings in the pot C1.
The bottom so that the member for taking out can be inserted from below the pot C1.
A plurality of pots C1 provided with cuts C7 in section C3
In the seedling box formed by right alignment,
Into the pot C1 from one end of the seedling box to the other end
When going in order multiple times, go in that order
Direction of the tear C7 in the pot C1
It is a seedling box characterized by the seed setting.

[0006]

[Action] Inserting the seedling pushing member 31a into the pot C1
The seedlings several times from one end to the other end of the seedling box.
When going, the cut C7 at the bottom C3 of the pot C1
Since the direction changes, the end face of the cut C7 is used for pushing out the seedling.
The part which slides on the member 31a changes, and the member for pushing out the seedlings
Partial wear of 31a is reduced.

[0007]

【The invention's effect】 Therefore, the present invention relates to the seedlings in the pot C1.
The member for pushing out the seedlings for pushing out
With a cut C7 at the bottom C3
The seedling box formed by aligning a plurality of
And insert the seedling pushing member into the pot C1 in the seedling box.
When going from one end to the other end several times in sequence
Cut in the pot C1 in the direction of going in that order
Since a plurality of types of directions of the tear C7 are set,
If a seedling box is used, uneven wear of the member 31a for pushing out the seedlings is moderated.
Harvesting and more accurate removal of seedlings than ever
Will be able to do it.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A seedling transplanter 1 shown in FIG. 1 is for planting rice seedlings in a paddy field. The seedling transplanter 1 has a planting section 4 mounted on a rear side of a riding-type traveling vehicle body 2 via a link device 3 that moves up and down, and also applies fertilizer to the side soil of the planted seedling. A fertilizer application device 5 is provided between the traveling vehicle body 2 and the planting section 4.

The traveling vehicle body 2 is provided with a pair of left and right driving front wheels 6,6 and a pair of left and right driving rear wheels 7,7.
A transmission case 9 is mounted on the front side of the engine 8 and an engine E is mounted on the rear side. The rotational power of the engine E is transmitted once to a hydraulic pump mounted on the upper part of the transmission case 9 by a belt transmission 10. From there, it is transmitted into the transmission case 9 by a belt transmission 11 which can be operated continuously. The power in the transmission case 9 is transmitted to the front wheels 6.6 and the rear wheels 7.7, and transmitted to the planting section 4 via the transmission shaft 9a, the intermediate case 9b, and the transmission shaft 9c. You. Reference numeral 12 denotes a steering wheel for steering the front wheels 6, 6, reference numeral 13 denotes a seat on which the driver sits, and reference numeral 14 denotes a step floor when the driver moves on the traveling vehicle body 2.

The link device 3 is provided with a frame 8 of the traveling vehicle body 2.
The upper link 15a
15a and lower links 15b and 15b are rotatably mounted, and a vertical link 15c
Are connected. The connection bearing portion 15c 'projecting rearward from the lower end of the vertical link 15c is attached to the planted portion 4c.
The connecting shaft 16 'fixedly connected to the planting transmission case 16 is rotatably connected to the planting transmission case 16, and the planting section 4 is mounted so as to be rotatable left and right with respect to the traveling direction. Also, the hydraulic cylinder 17 has a piston rod part 17a
The side is attached via a spring to a distal end of an arm 15a 'integrally fixed downward from the base of the upper link 15a. When the hydraulic cylinder 15 expands and contracts, the upper and lower links 15a, 15b, and 15b rotate around the support shaft on the link base 8a side, and the planting section 4 moves up and down. The operation of the hydraulic shilling 17 is controlled by a hydraulic valve 18.

The fertilizer application device 5 is a lateral fertilizer device for applying fertilizer near the planting seedlings simultaneously with planting of the seedlings in the planting section 4. First, a hopper 20 containing fertilizer and a lower side of the hopper 20 are provided. The attached extending portions 21 are positioned on the front side of the planting portion 4 with respect to the front-rear direction and on the rear side of the seat 9 of the traveling vehicle body 2, and the same number of the extending portions 21 (here, 6 6 are provided in correspondence with the row planting). Then, fertilizing hoses 22 for guiding the fed fertilizer to the groove generators 23 are connected to the respective feeding sections 21. Further, there is provided a blower 24 and an air chamber 25 for temporarily storing the compressed air from the blower and blowing it into the upper end of the fertilizing hoses 22. Therefore,
The fertilizer application device 5 is configured such that the fertilizer introduced into the hopper 20 is fed to a fertilizer hose 22 by a predetermined amount at a lower feeding part 21.
The fertilizer is forcibly fed into the fertilizer hose 22 by being blown into the fertilizer hose 22 and flowing toward the groove generator 23 side.
3.

By the way, instead of the side-strip fertilizer, FIG.
, A surface fertilizer for fertilizing the surface of a field may be provided. This surface fertilizer is provided at the front end of each of the center float 34 and the side floats 35, 35, which are arranged for every two rows with respect to the planting strips (3 in total).
Body), a fertilizer application section F, F, F, F, F, F, F, and fertilizing hoses 22, 22
22. In addition, the blower 24 and the air chamber 25 are similarly provided, and the wind pressure is increased so that the fertilizer coming out from the lower end of the fertilizer F2 can easily spread right and left. In addition, the hopper 20 is provided with the feeding unit 2.
1, 21 and 21 and may be constituted by one common hopper, or may be constituted separately for each feeding section. The configuration of the surface fertilizer application section F is such that the discharge ports 22a, 22a, 22a at the lower end of the fertilizer hoses 22, 22, 22 are supported by support members F1, F1, F1 fixed to the planting section frame side. Fertilizers F2, F2, F2 are attached to the front ends of the center float 34 and the side floats 35, 35 (for blow molded floats, the parting parts at the front end of the floats are attached). It is formed large and attached directly to it)
The upper ends of the fertilizers F2, F2, F2 are connected to the upper ends of the fertilizers F2, F2, F2 with flexible telescopic bellows hoses F3, F3, F3. The lower end of the fertilizer F2 is formed wide in the left and right directions and narrow in the front and rear directions, so that the fertilizer can be fertilized widely in the left and right directions in the field scene. The fertilizer discharged from the lower end of the fertilizer F2, F2, F2 falls to the field scene. Here, when there is water on the field scene, the surface tension causes the fertilizer to easily float on the water surface, but the floats 34, 35 and 35 immediately pass over the fertilizer that has fallen on the field scene due to the forward movement of the aircraft. The fertilizer floating on the surface of the water is surely pushed down into the mud under the surface of the water. Also, the ridges 34a, 34a, 35a,... Are provided on the left and right sides of the bottoms of the floats 34, 35, 35, so that the fertilizer is less likely to be discharged from the bottom of the floats to the left and right. . By the way, if the fertilizer is left floating on the water surface, the wind will blow and the fertilizer will be washed away. After all,
Despite fertilizing the field evenly at the time of planting,
The fertilization will be uneven, and if the above-mentioned surface fertilization is adopted, this problem will be prevented and uniform surface fertilization will be possible.

[0013] C is a seedling box of plastic flexible, molded as well in longitudinal and lateral small pot C1 ... are at predetermined intervals, the opening C2 ... is independent bottom C3 ... side connected to each other shapes ing. Further, square holes C5 for feeding seedling boxes are provided at left and right edge portions C4 along the longitudinal direction of the seedling box C in accordance with the longitudinal intervals of the pots C1.
At the bottom C3 of each pot C1 is a round small hole C6 at the center.
And a cross C7 centered on the small hole C6, and a small hole C8 at the end of the cross C7 (FIG. 15). The seedlings are sown and covered by filling the soil in each pot C1. The seedling boxes C, each of which has been bred one by one for each pot C1..., Are loaded into the seedling transplanter 1 together with the seedling boxes, and are pushed out from the bottom C3 side by the rod-shaped pushing pins 31a to take out the seedlings.

Incidentally, the seedling box shown in FIGS. 16 and 17 can also be used. This seedling box C 'is formed in the same shape as the seedling box C, but the bottom C' of each pot C'1.
3 have a round small hole C'6 in the center, a trifurcated cut C'7 around the small hole C6, and a small hole C'8 at the end of the cut C'7. Is provided. The cutting directions of the trifurcated cuts C'7 are provided so as to be displaced by 30 ° each time the row is changed in the longitudinal direction of the seedling box C '. This configuration is effective in the following cases. That is, when the pushing pins 31a ... push the seedlings in the pots C'1 ... one by one from the bottom C'3 side, the pushing pins 31a ... enter the bottom C'3 through the central small hole C'6. At this time, the pin is at the bottom C'3
Slidably in contact with the end faces of the small holes C'6 and the cuts C'7. When the cutting direction is set to the same direction in each row as described above, the sliding contact point of the end face of the cutting C'7 to the pin is always the same, and when the number of seedling pushing is repeated many times, the sliding contact is made. The parts are worn. In particular, the tip of the push-out pin 31a wears remarkably, and when the cut shape is a cross shape, when the cut shape is a quadrangular pyramid, and when the cut shape is a trifurcated shape, it wears into a triangular pyramid shape and the tip becomes sharp. Then, when the seedling is extruded, the tip of the pin pierces the floor and the extrusion is likely to be defective. However, if a seedling box C 'having a configuration in which the cutting direction of the cuts C'7... Is displaced every time the row is changed in the longitudinal direction of the seedling box C' is used, the pin on the end face of the cut C'7 is used. The contact point of the push pin changes every time the row changes, so that the abrasion of the tip of the push pin progresses evenly, and the push pin 31a can be used for a long time.

The seedling box C 'is formed as follows. That is, semicircular plates C'9 are integrally provided on the bottom surface side of the left and right edge portions C4. The lower end position of this plate C'9 is pot C'1 ...
Is formed so as to be located lower than the bottom surface position. Further, the semicircular plates C'9 are provided so as to be shifted to the left and right one by one, and the semicircular plates C 'adjacent to each other in a side view.
9 are provided so as to overlap with each other. Further, the seedling box C 'can be curved upward or downward.
The use of the seedling boxes C ′ is effective in the following cases.
That is, when seedlings are raised using this kind of seedling box, when the seedlings are finished and the seedling box is picked up, the small holes C'6... C'8 ... at the bottom C'3 ... of the pots C'1 ... It is necessary to cut the roots of the seedlings that have grown from the seedling box into the soil where the seedling boxes are placed. This root cutting operation is generally performed by laying a wire under the seedling box. However, during this operation, the wire often caught on the pot (particularly on both the left and right ends), and it was difficult to proceed smoothly. However, if the seedling box C 'is used, since the semicircular plates C'9 are provided at the left and right edge portions C4 and C4 so as to extend below the pot C'1, the wire is provided. Even if the wire is crawled in the seedling box longitudinal direction and the root is cut, the wire does not catch on the pot. Therefore, the root cutting operation proceeds smoothly, and the efficiency increases.

The planting section 4 has a six-row planting configuration and includes a seedling box supply device 30, a seedling take-out device 31, a seedling transfer device 32, and a seedling planting device 33, and a plurality of flexible seedling boxes C are provided. Are loaded into the seedling box supply device 30 and sequentially sent to the seedling pushing position P of the seedling removal device 31, and the seedlings are taken out from the seedling box C sent by the seedling removal device 31, and the taken out seedlings are transferred to the seedlings. The seedling conveyed to the seedling picking position S of the seedling seeding device 33 by the device 32, and the seedling conveyed to the seedling picking position S is picked up by the seedling seeding device 33 and planted in the field.
In addition, a center float 34 and a pair of left and right side floats 35 are provided below the planting section 4. Each of these floats can be used in a field scene if the floats are grounded and the aircraft is advanced. Leveling while sliding. Each of the floats 34, 35, 35 is provided with a groove forming device 23 for forming a fertilizing groove in a field scene near the seedling planting position of each strip. The center float 34 is also a sensor for detecting unevenness in the field scene.
The spool of the hydraulic valve 18 is operated according to the vertical movement of the hydraulic valve. That is, when the center float 34 moves upward, the hydraulic valve 18 is operated in a direction to extend the hydraulic cylinder 17, and when the center float 34 moves downward, the hydraulic valve 18 is operated in a direction to contract the hydraulic cylinder 17. Thus, the planting unit 4 is controlled so as to maintain a constant height with respect to the field scene.

The frame of the planting portion 4 is a transmission in which connecting pipes 16a are fixed to the left and right sides of the planting portion transmission case 16, and two seedling planting devices 33 are provided at both ends thereof. The transmission frames are fixed with connecting pipes 16c and 16c on both outer sides of the front ends of the transmission frames. The frames 16d, 16d are fixed, and the rear ends of the transmission frames 16b, 16b, 16d, 16d are connected by a connection frame 16e, so that a frame-like frame structure as a whole is obtained. Has become.

The seedling box feeding device 30 includes a seedling box feeding guide 3.
0 '... Are provided for each of the central two, the left two, and the right two. Seedling box feed guide 30 '...
Are U-shaped rails 3 on the left and right of the trough 30a having a concave cross section.
0b and 30b are integrally provided on the left and right sides (FIG. 9). The seedling box C is loaded so that its left and right edges C4, C4 enter the grooves of the U-shaped rails 30b, 30b, and slides in the groove direction of the rails 30b, 30b. To be transported. The upstream side of the mainstream portion 30A of the seedling box feed guide 30 'is located at the mainstream portion 3A.
A first branch portion 30B and a second branch portion 30C that merge into 0A are provided, and seedling boxes are loaded in multiple stages. Further, the downstream side of the main stream portion 30A is provided so as to be bent forward from near the seedling pushing position P and turned upward, and the seedling box discharge port 3 is provided.
Empty seedling boxes C "... Are discharged from 0A" and are housed in a state of being sequentially overlapped with an empty box storage frame 30D provided thereunder. In the seedling box supply device 30, the upper ends of the support frames 16f fixed to the planting portion frame side are fixed and supported on the upper lower side of the second branch portion 30C. The second branch 30C and the first branch 30B are connected by left and right plates 30c, 30c, and the first branch 30B and the main flow 30A are connected by left and right plates 30d, 30d. It is to be noted that a merging portion AB of the rail portions 30b of the main flow portion 30A and the first branch portion 30B, a main flow portion 30A and the second
Junction A of both rails 30b of branch 30C
.. -C are both rail portions 30b, 30b on the mainstream side and the tributary side.
Are connected continuously so that they do not block each other. In addition, the gutter section 30a on the main flow section side has the merging sections AB, A
At -C, an opening is provided so as not to hinder the movement of the seedling box from the branch portion side.

The seedling box supply device 30 includes:
Three seedling boxes C ... can be loaded in the main branch 30A, two seeds in the first branch 30B, and two seedling boxes C in the second branch 30C. The seedling boxes C ... Tributary 30B,
Each seedling box supply port 30A ', 30B', of the second branch 30C.
It is provided to be loaded from 30C '. Also,
In the loaded seedling boxes C, first the seedling boxes C in the main stream portion 30A are sequentially sent to the seedling pushing device 30 side.
The seedling boxes C, C loaded in OB are merged and sent to the main stream portion 30A, and the seedling boxes charged in the second branch portion 30C are merged and sent to the main stream portion 30A. In this way, the main branch 30A, the first branch 30B, and the second branch 30
Each of the seedling boxes C loaded in each of the Cs is provided so as to be sequentially and continuously sent without interruption. still,
The seedling box C receiving the seedling pushing action by the seedling take-out device 31 is connected to the seedling box feeding device 3 provided near the seedling pushing position P.
0f... Forcibly transfers the pots one row at a time, and the movement of the seedling boxes C.. The movement of the seedling boxes C on the lower side of the seedling box is a movement pushed by the forcedly transferred seedling box.

The seedling box feeder 30f is provided with feed claws 30g reciprocating along the rails on the upper side of the left and right rails 30b of the seedling box feed guide 30 '. The feed claw 30g, the claw part of the 30g is the rail part 3.
Ob, 30b enter the groove from the opening provided on the upper surface side and engage with the seedling box feeding square holes C5, C5 provided at the edge portions C4, C4 of the seedling box C in the groove. The feed claw 30g / 30g moves upward from the state where it has been moved to the next square hole C5, C5.
5 and moves down again, the pot C
1... Forcibly transporting one horizontal row. The locking claws 30h, 30h are provided so that the pot C1 for one horizontal row is accurately positioned at the seedling pushing position (P).
The locking claws 30h, 30h are linked so as to disengage from the square holes C5, C5 when the feed claws 30g, 30g move up, and the feed claws 30g, 30g move down to move to the next pot C.
1. When one horizontal row is forcibly transported, it is configured to engage with the next square holes C5, C5. Therefore, the locking claw 30h · 3
0h and the feeding claws 30g, 30g engage with the seedling box feeding square holes C5, C5 of the seedling box C, so that the horizontal row of pots C1... Is accurately positioned at the seedling pushing position (P). Feeding claw 30g
30g is between transmission frames 16d-16b, 16b-1
Seedling feed drive shaft 30i provided on 6b, 16b-16d
The reciprocating rotation of 30i and 30i is transmitted to operate. That is, a swing arm 30j fixed to each of the seedling feed drive shafts 30i, and a rod 30 at a multi-end side of a rotating arm 30k connecting one end of a feed claw 30g.
m ... so that they operate in conjunction. The transfer operation of the seedling box feeding device 30f is operated after the seedling removal device 31 pushes out the seedlings and the push-out pins 31d ′... Come out from the bottom of the pots C1. .

The seedling removal device 31 is provided with the seedling box supply device 3.
The pot C1 at the seedling pushing position (P) is a device for taking out the seedbeds in the pot one row at a time from the seedling box C which is loaded into the seedling pushing position (P) and sequentially sent to the seedling pushing position (P). The seedling removal device 31 is provided between the transmission frames 16d-16b, 16b.
Extrusion drive shaft 3 provided at -16b, 16b-16d
A slide arm 31b is fixed to 1a, 31a, 31a, and a slide case 31d slidably attached to a slide guide shaft 31c fixed to the body is connected to the arm 31b. The slide case 31d slides back and forth by the reciprocating rotation of 31a. Then, the seedling box C is placed on the slide case 31d.
Are provided with the same number and the same pitch for the lateral pots C1.
1d 'is the seedling pushing position P of each seedling feeding guide 30'.
Of the gutter portions 30a of the gutter portion 30a.
d ′... penetrate through the seedling push-out holes C6... at the bottom C3... of one horizontal row of the seedling box C located there, and act to push out the seedbed in the pots C1. The projecting and retreating operation of the seedling pushing pins 31d 'is performed after the feeding operation of the seedling box feeding device 30f is finished and the seedling pushing devices 31f' are pushed out by the previous seedling pushing operation and are moved.
Immediately before all of the seedlings in the horizontal row placed on the seedling transfer device 33 have been conveyed to the seedling collecting position S, the pins 31d '
Are projected to start the seedling pushing operation, and the seedling transport device 32
By the time... Transports the seedlings of one plant in the horizontal direction, the seedling pushing-out operation is completed. When the seedling pushing action is completed, the pin 31
d '... retracts to the back side of the gutter 30a ... of the seedling feed guide 30'.

As shown in FIG. 11, the gutter portion 30 of the seedling feed guide 30 'through which the seedling pushing pins 31d'.
are provided in an extrusion hole plate 31e fixed to the back side of the gutter portion 30a. The extruded hole plate 31e is provided with a seedling extruded pin 31e.
An extruding pin guide portion 31f for preventing displacement of the tip of the seedling extruding pin 31d 'is formed integrally so that d' can surely pass through the extruding hole 31d. The seedling push-out pins 31d 'are always slidably fitted in the holes provided in the push-out pin guides 31f. When the seedling push-out pins 31d' project in this state, they move. Are positioned in the direction, so that the seedling pushing pins 31d 'always pass through the pushing holes 31d. Extrusion hole plate 3
1e is integrally provided with pot left and right position correcting plates 31g for entering the independent bottom valleys on the bottom side of the pots C1 to correct the left and right positions of the pots C1. As a result, the horizontal row of pots C1... Located at the seedling removal position (P) have seedling pushing holes C6.
Are prevented from being shifted to the left and right with respect to the extrusion holes 31d of the extrusion hole plate 31e, and the seedling extrusion is ensured.
Further, even with the configuration as shown in FIG. 12, it is possible to prevent the left and right positional deviation. That is, a laterally elongated square hole is provided in the gutter portion 30a of the seedling feed guide 30 ', while a pot right and left position correcting tool 31i is slidably fitted to the tip of the seedling pushing pin 31d'. The part is connected to the slide case 31d via springs 31h. The pot left and right position corrector 31i is integrally provided with a correction plate portion 31i '... When the slide case 31d slides, the correction plate portion 31i'.
Are located in the horizontal row of pots C1 at the seedling removal position (P).
, And into the left and right valleys on the bottom side, the seedling pushing pins 31d ′ and the seedling pushing holes C6 of the pots C1.
The left and right positions of the pots C1. The tip of the correction plate portion 31i 'is a pot C1.
… Pot left and right position corrector 3 against the bottom of the valley between
When the slide case 31d further slides to a position where 1i does not move any further, the spring 31h.
31h is compressed, and the seedling pushing pins 31d '. Seedling pushing pin 3 by straightening plate part 31i '...
The seedling pushing pins 31 are corrected so that the right and left positions of the seedling pushing holes C6 of 1d 'and the pot C1 match.
d ′... reliably pass through the seedling pushing holes C6... of the pots C1.

The seedling transfer device 32 includes the seedling removal device 31.
This is a device that receives one horizontal row of seedlings extruded by the seedling pushing-out operation and transports the left and right halves to the seedling picking positions SS of the left and right seedling planting devices 33, 33. This seedling transport device 32
The belt 32 is a supporting member fixed to the transmission case 16 or the connecting pipes 16c and the connecting frame 16e.
c is supported so that the upper surface is horizontal. Then, the seedling transfer belts 32c and 32c are wound around the seedling transfer rollers 32a-32b and 32a-32b, and the rotation shaft 32d of the one seedling transfer roller 32a on the left and right center sides and the transmission case 16 are rotated. Alternatively, the seedling transfer drive shaft 32e protruding from the connecting pipes 16c is connected to the seedling transfer drive shaft 32e by a transmission shaft 32f, and a gear 32g integrated with the roller rotation shaft is connected to the rotation shaft of the other seedling transfer roller 32a. The integral gear 32h meshes, and the adjacent seedling transport rollers 32a, 32a on the left and right central sides rotate at the same speed in opposite directions to each other to rotate the left and right seedling transport belts 32.
c and 32c are operated so as to move to the left and right ends, respectively. Also, the seedling transport belt 32
The rotation of c ... is performed in such a manner that the seedlings placed on the upper surface side of the seedling transport belts 32c are aligned with the timing at which the seedling planting device 33 ... picks up seedlings one by one from the seedling picking position (S). (S)... Are operatively rotated so as to be conveyed one by one to the planting guides 32i... A plurality of projections 32c 'are provided on the outer peripheral surface of the belts 32c along the rotation axis direction.
c ′ are placed on the belts 32c so as to be sandwiched therebetween.

The seedling planting device 33 ...
By means of the planting guide 32i ... the seedling receiving portion 32i 'at the top ...
This is a device that takes the seedlings that have been transported to the plant one by one and plants them in the field. The seedling planting device 33 includes a transmission frame near the center.
The transmission frames 16d are attached to the left and right sides of the rear portions of the transmission frames 16b. This seedling planting device 33 has a structure in which two seedling planting rods 33b are attached to a rotating case 33a which is connected to a transmission mechanism in a transmission frame and rotates. The tip side of the attached rod 33b moves in an arc, and the seedlings are alternately planted on the field. When passing through the planting guide 32i, the planting rod 33b moves so as to push down the seedling bed of the seedling received by the seedling receiving portion 32i ′ above the planting guide 32i, and slightly moves from the seedling bed width of the seedling. Guide plate 32i ".32i" of planting guide 32i provided narrowly
Forcibly move the seedlings inside. Guide plate 32i ".32
i ", the tip of the planting rod 33b is transferred to the field mud while holding the nursery as it is. When the seedlings stand upright in the mud, the planting rod 33b is moved to the tip. The partial trajectory moves upward so as to be slightly concave (the seedling-planting rods 33b and 33b are planted in the field without tilting the seedlings backward), and the seedlings are planted in the field.

The specific configuration of the seedling planting apparatus 33 is as follows (FIGS. 4 and 5). The rotating case 33a
A planting drive shaft 40 which is formed in a disk shape and is driven to rotate.
It is integrally attached to. That is, the planting drive shaft 40
And a groove provided in a shaft hole of a boss 41 which is mounted so as to rotate integrally with an inner central portion of an outer case 33a 'of the rotating case 33a. The key case is provided with a key 42 incorporated therein so that the rotating case 33a can rotate integrally therewith. Further, the tip of the planting drive shaft 40 is threaded, and the outer case is attached to the threaded portion. S33
a nut 43 is tightened from the outside of
The thread 33a is integrally attached to the planting drive shaft 40. A boss portion 44b of a cam disk 44 having a cam groove 44a formed in a desired shape on an outer peripheral portion is rotatably fitted to the planting drive shaft 40 in a rotating case 33a. The boss portion 44b is connected to a metal 46 which is fastened and fixed to the transmission frame 16b (or 16d) with bolts 45 and rotatably loosely fitted to the planting drive shaft 40. That is, a claw portion 46a is formed at the outer end portion of the metal 46, and the claw portion 46a enters the rotating case 33a and is provided on the boss portion 44b of the cam disk 44.
b 'is engaged and connected. Therefore, the rotating case 3
3a is driven and rotated by the planting drive shaft 40, but the cam disk 44 in the rotating case 33a cannot rotate.
The outer periphery of the boss 44 of the cam disk 44 and the rotating case 3
A bearing 47 is fitted between the inner case 33a "and the inner case 33a" to make the differential between them smooth. Also, outside the bearing 47, the outer periphery of the metal 46 and the inner case 33a "are fitted. A seal 49 is provided between the outer periphery of the planting drive shaft 40 and the outer case 33a 'on the tip end side of the planting drive shaft 40, and a rotating case is provided. -The rotating case 3 prevents muddy water from entering the case 33a.
The cam operating member in 3a is prevented from being worn and rusted. Outer case 33a 'of rotating case 33a and inner case
The screws 33a "are assembled on the mating surface (B) and fastened by bolts 50 on the outer periphery of the case.

Rollers 51a, 51a rotatably provided on the counter arms 51, 51 are engaged with cam grooves 44a formed on the outer periphery of the cam disk 44. The counter arm 51 is provided with a rotating case 33a.
Arm shaft 5 attached and fixed to the outer case 33a 'side of the
It is rotatably attached to 2 · 52. The axis positions of the two arm shafts 52 are located on the same circumference with respect to the center of rotation of the rotating case 33a (the axis of the planting drive shaft 40) and at a position of 180 °. It is provided so as to have a phase difference. The arm shafts 52, 52 are provided with seats 52a, 52a on the free end side, the other end side is threaded, and screwed with nuts 52b, 52b outside the outer case 33a '. It has a configuration. In addition, this arm shaft 5
O-ring 5 between the outer periphery of 2 ・ 52 and outer case 33a ′
3.53 is incorporated to prevent intrusion of muddy water from here.

Roller 5 of counter arms 51
The swinging end opposite to the mounting end of 1a / 51a is a gear 5
1b and 51b, and the gear portions 51b and 51b
b meshes with gears 55, 55 integrated with the rotating shafts 54, 54. Since the pitch radii of the gear portions 51b are set larger than the pitch radii of the gears 55, the rotation of the rotation shafts 54 with respect to the swing angle of the counter arms 51,51. The corners get bigger. Rotating shafts 54
Is located on the same circumference with respect to the center of rotation of the rotating case 33a (the axis of the planting drive shaft 40) and 18
It is provided so as to have a phase difference of 0 °. The rotary shafts 54 are supported by bushings 56 in shaft holes of bearings S formed in the outer case 33a '. Also, a gear 5 integrated with the rotating shafts 54
5.55 is a gear portion 51b of the counter arm 51.51.
· Plates 57 for preventing slippage integrally fixed to the side surface of the inner case 33a 'on the side of 51b and the outer case 33a'.
Since it is sandwiched between the inner side surfaces, the rotation shafts 54 are configured so as not to be displaced in the axial direction. A portion protruding outside the outer case 33a 'of the rotating shafts 54 is a square shaft, and a mounting portion having a square hole at the base of the seedling mounting rods 33b 33b at the square shaft portion. 33b '
33b 'is integrally mounted. 58 ・ 58
Is a cotter pin, which is used for seedling planting rods 33b and 33b.
Are integrally attached to the rotating shafts 54 without being shifted in the axial direction. Seals 59 are incorporated between the outer periphery of the rotating shafts 54 and the outer case 33a 'to prevent intrusion of muddy water therefrom. 60
60 is a cover. Also, a counter arm 51
Since both the gear 51 and the gears 55 are attached to the outer case 33a ', even if the outer case 33a' is removed from the inner case 33a ", the counter arms 51 and 51 are not removed.
Since the gears 51b and 51b and the gears 55 and 55 do not come out of engagement with each other, disassembly and assembly are easy. 6
1 is a bearing, and 62 is a seal.

The seedling planting apparatus 33 configured as described above
Operates as follows. First, the planting drive shaft 40
Planting transmission case 16 and connecting pipes 16a
A transmission frame 16b, 16b, 16d, 16 is provided from a laterally long planting transmission shaft provided in 6c, 16c (the planting transmission shaft rotates by receiving power from the traveling vehicle body 2).
Driven and rotated through the chain in d. When the planting drive shaft 40 is driven to rotate, the rotating case 33a rotates integrally, and the cam disk 44 in the rotating case 33a does not rotate. Then, the cam groove 44 on the outer periphery of the cam disk 44
a is a roller 51a of the counter arm 51.
・ 51a slides in the rotation direction of the rotating case 33a. The counter arm 51, 51 swings due to the cam groove shape, and the gear portions 51b, 51b of the counter arm mesh with the gears 55, 55, whereby the swing of the counter arm rotates. The power is transmitted to the shafts 54, 54, and the tips of the seedling mounting rods 33b, 33b operate as indicated by a locus (T) shown in the figure.

As described above, the seedling planting device 33 is provided with the pivot shaft 54 for the swing angle of the counter arm 51.
The configuration in which the rotation angle of 54 is increased allows the cam shape of the cam groove 44a of the cam disk 44 for oscillating the counter arms 51, 51 to be gentle (normal to the cam surface (tangent line)). (A large angle with respect to the direction) can be set, so that the cam disk 44 can be downsized. Thus, the size and weight of the seedling planting device 33 can be reduced.

FIGS. 6, 7, and 8 show a seedling plant 70 having a different configuration. That is, the rotating case 70a is formed in a disk shape, and is integrally attached to the planting drive shaft 40 which is driven and rotated. That is, the groove provided on the tip end side of the planting drive shaft 40 and the outer case of the rotating case 70a.
A key 72 is incorporated into a key groove formed by a groove provided in a shaft hole of a boss 71 which is assembled so as to rotate integrally with an inner central portion of the sleeve 70a ', and the rotating case 70a is formed. The planting drive shaft 40 is provided so as to rotate integrally, and the tip of the planting drive shaft 40 is threaded.
The nut 73 is tightened from the outside of the
A thread 70a is integrally attached to the planting drive shaft 40. A sun gear 74 formed as an eccentric gear or a non-circular gear is rotatably fitted to the planting drive shaft 40 in a rotating case 70a. The boss 74a
The transmission frame 16b (or 16d) is connected to a metal 76 which is fastened and fixed with bolts 75... That is, a claw portion 76a is formed at the outer end portion of the metal 76, and the claw portion 76a enters the rotating case 70a and meshes with and is connected to a claw portion 74a 'provided on the boss 74a of the sun gear 74. ing. Therefore, the rotating case 70a is driven and rotated by the planting drive shaft 40, but the sun gear 74 in the rotating case 70a cannot rotate. A bearing 77 is fitted between the outer periphery of the boss portion 74a of the sun gear 74 and the inner case 70a "of the rotating case 70a to make the differential between the two smooth.
Outside the bearing 77, a metal 76
A seal 78 is provided between the outer periphery of the planting drive shaft 40 and the inner case 70a ".
A seal 79 is provided between the outer periphery of the outer case 0 and the outer case 70a 'to prevent intrusion of muddy water into the rotating case 70a. Prevents sticking. The outer case 70a 'and the inner case 70a "of the rotating case 70a are assembled at the mating surface (B') and fastened by bolts 80 at the outer periphery of the case.

The sun gear 74 has a counter shaft 81.8
The planetary gears 82 rotatably provided at 1 mesh with each other so as to be able to transmit in accordance with the phase of the sun gear 74. The planet gears 82 are eccentric or non-circular gears formed in the same tooth shape as the sun gear 74. Counter shaft 81
The position of the axis 81 is located on the same circumference with respect to the rotation center of the rotation case 70a (the axis of the planting drive shaft 40), and is provided so as to have a phase difference of 180 °. . In addition, the boss portions 82a of the planet gears 82
Cam disks 83, 83 having cam grooves 83a, 83a formed in a desired shape are integrally provided on the outer peripheral portion.
The two cam disks 83 are formed in the same shape. Swing arms 84, 84 are provided in cam grooves 83a, 83a formed in the outer peripheral portion of the cam disks 83, 83.
Rollers 84a, 84a rotatably provided on the first gear are engaged. The swing arm 84 is connected to the seedling mounting rod 70b.
70b is integrally fixed to the rotating shafts 85 which are integrally attached. The rotating shafts 85, 85
The bearing is formed via a bush 86 in a shaft hole of a bearing portion S formed in the bearing 70a '. Rotating shaft 85
Is located on the same circumference with respect to the rotation center of the rotating case 70a (the axis of the planting drive shaft 40), and
It is provided so as to have a phase difference of 0 °. A portion of the rotating shaft 85 protruding outside the outer case 70a 'is a square axis, and the seedling rod 70b is provided on the square axis.
· Mounting portion 70b '· 70 with square hole at base of 70b
b 'is integrally attached. Reference numerals 87, 87 denote cotter pins, by which the seedling mounting rods 70b, 70b are integrally attached to the rotating shafts 85, 85 without being shifted in the axial direction. Seals 88 are installed between the outer periphery of the rotating shafts 85 and the outer case 70a 'to prevent intrusion of muddy water therefrom. 89 ・ 89
Is a cover. 90 is a bearing and 91 is a seal.

By the way, with the above configuration, the cam disc 83
The phase of 83 is determined by the swing arm 8 which engages with the cam grooves 83a on the outer peripheral portion via rollers 84a.
When 4.84 swings greatly, the cam disk 83
The sun gear 74 and the planetary gear 8 so that the rotation of the
2.82 are set in phase. The seedling planting apparatus 70 configured as described above operates as follows. First, the planting drive shaft 40 is connected to the planting transmission case 16 and the connecting pipe 1.
6a, 16a, 16c, 16c, and a transmission frame 16b, 16b provided in a laterally long planting transmission shaft (the planting transmission shaft is rotated by receiving power from the traveling vehicle body 2).
· 16d · Driven and rotated through the chain in 16d. When the planting drive shaft 40 rotates, the rotating case 70a rotates integrally, and the sun gear 74 in the rotating case 70a does not rotate. Then, the two planet gears 82 that mesh with the sun gear 74 revolve with the rotating case 70a while rotating around the sun gear 74. The cam disks 83.8 are integrated with the planet gears 82.
3 rotates, and rollers 84a, 84a slide in the cam grooves 83a, 83a on the outer periphery thereof to swing arms 84, 84.
Swings, and the swinging arms 84, 84 swing the rotating shafts 85, 85 so that the tips of the seedling-bearing rods 70b, 70b move along the locus (T) shown in the figure. Operate.

As described above, in the seedling plant 70, the phase of the cam disks 83
When the swing arms 84, 84 engaged with the rollers 3a, 83a via the rollers 84a, 84a swing greatly, the sun gear 7 is rotated so that the rotation of the cam disks 83, 83 becomes slow.
4 and the planet gears 82, 82 are set in phase.
Since the cam shapes of the cam grooves 83a, 83a of the cam disks 83, 83 for swinging the cams 84, 84 can be set gently (the rate of change in the curvature of the cam surface is small), the cam disks 83, 83 can be made compact. Can be Therefore, the size and weight of the seedling planting apparatus 70 can be reduced.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view showing a planting portion of the riding rice transplanter.

FIG. 3 is a side view of the seedling planting apparatus.

FIG. 4 is a cross-sectional plan view of a seedling planting apparatus.

FIG. 5 is a side view showing the configuration inside the rotating case of the seedling planting apparatus.

FIG. 6 is a side view of another seedling plant.

FIG. 7 is a cross-sectional plan view of another seedling planting apparatus.

FIG. 8 is a side view showing a configuration inside a rotating case of another seedling planting device.

FIG. 9 is a sectional view of the seedling box feed guide with respect to the transfer direction.

FIG. 10 is a rear view showing the seedling transfer operation of the seedling transfer device.

FIG. 11A is a side view showing a configuration of a seedling removal device..
(B) Partial plan view showing the configuration of the seedling removal device.

FIG . 12A is a side view showing the configuration of another seedling removal device . (B) Partial plan view showing the configuration of another seedling removal device .

FIG. 13 is a side view showing the configuration of a seedling box feeding device.

FIG. 14 (a) is a side view showing a configuration of a fertilizer application section of a surface fertilizer application apparatus . (B) Front view which shows the structure of the fertilizer application part of a surface fertilizer .

15A and 15B are views showing a seedling box, wherein FIG. 15A is a perspective view, FIG. 15B is a partial cross-sectional side view, and FIG. 15C is a partial plan view.

FIG. 16 is a partial plan view showing another seedling box;

FIG. 17 is a partial side view showing another seedling box;

[Explanation of Signs] C1: Pot C3: Bottom C7: Cut 31a: Seedling push pin (member for pushing seedling)

──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hideo Iseki 1 Eighth, Tobe-cho, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Within the Technology Department, Inc. (72) Inventor Tetsu Kato 1st Hachikura, Tobe-cho, Iyo-gun, Ehime Prefecture, Iseki Agricultural Machinery Co., Ltd. (72) Inventor, Toshimi Fukushima 1 Yatsukura, Tobe-cho, Iyo-gun, Ehime Pref. Inspector, Iseki Agricultural Machinery Co., Ltd. (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 11/02 370-387 A01G 9/02 603

Claims (1)

(57) [Claims] A seedling extruder for extruding seedlings in a pot C1.
Bottom part so that a member for digging can be inserted from below the pot C1.
A plurality of pots C1 provided with cuts C7 in C3
In the seedling box formed by aligning,
Insert the pot C1 from one end of the seedling box to the other end.
Go in that order when going in order several times
Direction of the cut C7 in the pot C1
A seedling box characterized by the settings .