JPH11299316A - Seedling placing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate problems in which when a roll obtained by winding a beltlike group seedling is placed on a section of a seedling placing stand, the end of the roll is drawn out to a seedling receiving plate, a seedling for one stock is taken out from the end of the drawn roll and planted, the number of times for stopping the operation of a rice transplanter for replenishment of seedlings to improve efficiency but the width of the group seedling is lessened by the drawing out of seedlings from the roll and there is a fear of the absence of stock and a small stock (deficiency in the number of seedlings). SOLUTION: A seedling placing stand 26 for reciprocating right and left is arranged at the front or the rear of a seedling receiving plate 24 fixed to a frame. The seedling placing stand 26 is provided with plural sections 29 crosswise by dividing the interval between a right and a left side walls 21 by partition walls 28. Each section 29 comprises a narrow section 29A close to the seedling receiving plate 24 and a remote and wide section 29B and a roll 32 made by winding a beltlike group seedling is placed on the wide section 29B. A part drawn out from the roll 32 is extended through the narrow section 29A to the seedling receiving plate 24. The seedling receiving plate 24 is equipped with a seedling outlet port 24a, through which a planting lever is passed downward, on the extended part of each narrow section 29A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used for a rice transplanter which uses a band-shaped group seedling (long mat seedling) wound on a roll.

[0002]

2. Description of the Related Art A rice transplanter is widely used in which a group of seedlings (mat seedlings) having a size of about 30 cm × 60 cm is placed on a seedling mounting table, and the seedlings are removed from the seedlings and transplanted. In this rice transplanter, the collective seedlings become smaller as chipping of the seedlings for each plant progresses. Then, the operation of the rice transplanter is stopped, and the operation is restarted by adding a spare group seedling after the group seedling which has become smaller. Therefore, the frequency of stopping the operation of the rice transplanter was high, and efficiency was not improved. To improve this, a band-shaped group seedling (long mat seedling) 10 times as large as 30 cm x 6 m is wound around a roll with the seedling inside, and the part pulled out from the roll is cut off from the end and transplanted Rice transplanters are being tried.

[0003]

In the rice transplanter, a plurality of partitions are formed by partitioning between the side walls on both sides of the seedling mounting table with a plurality of partitions, and the above-mentioned roll is provided at one end of each partition. The portion which is put on and pulled out from this reaches the seedling receiving plate from the other end, and is cut off from the end on this and transplanted.

[0004] In order to make this band-shaped collective seedling light, seedlings are sown on a nonwoven fabric or sponge-like sheet of approximately 30 cm x 6 m without using floor soil, and the seedlings are raised by hydroponic cultivation. Therefore, the group seedlings of the part drawn from the roll tend to be elongated and have a smaller width than the roll part. As a result, if the widths of the compartments are the same, the portion drawn from the roll of the group seedlings has a gap between the side wall and the partition wall due to the above-described reduction, and the gap has a lack of stock at the time of transplantation. It may lead to small stocks (insufficient number).

[0005]

According to the present invention, in order to solve the above-mentioned problems, a seedling table 26 which reciprocates left and right before or after a seedling receiving plate 24 fixed to a frame is arranged. The left and right side walls 27 are partitioned by a partition wall 28 to form a plurality of partitions 29 side by side.
Is a narrow section 29A near the seedling receiving plate 24 and a wide section 29 far from the seedling receiving plate 24.
Roll 32 formed by winding a band-shaped collective seedling composed of B
Is placed on the wide section 29B, and the portion pulled out from the roll 32 passes through the narrow section 29A, and the seedling receiving plate 24
, And the seedling opening 24a through which the implantation rod 23 passes downward is provided as a seedling placing device provided on the seedling receiving plate 24 on the extension of each narrow width section 29A.

[0006]

Next, an embodiment of the present invention will be described. A seedling plant 2 is mounted on a traveling vehicle body 1 to form a rice transplanter (FIGS. 1 and 2). The traveling vehicle body 1 is configured as follows. A main gear box 4 and a rear wheel gear box 5 are provided before and after the frame 3, and a front wheel 6 and a rear wheel 7 are mounted outside the respective gear boxes 4 and 5. An engine 8 is provided on the frame 3 and its power is adjusted to a predetermined speed by a transmission in the main gear box 4 and then reaches the front wheels 6 and the rear wheels 7, which are mounted on a cultivator of a paddy field. The traveling vehicle body 1 is rotated so as to move forward.

The engine 8 is covered by a cover 10 behind the floor 9, and a seat 11 is mounted thereon. A handle frame 12 is provided at a front portion of the floor 9. When a steering handle 13 on the handle frame 12 is operated, the front wheels 6 are steered to change the course of the traveling vehicle body 1. A column 14 extends upward from a rear portion of the frame 3, and both ends of a plurality of links 16 that are parallel to the rear elevating frame 15 when viewed from the side are rotatably mounted. When the front part of the elevating cylinder 17 is attached to the frame 3, the piston rod projects obliquely rearward and upward from the frame 3, the lower end of the arm 18 integral with the upper link 16 is connected to its protruding end, and oil is supplied to and discharged from the elevating cylinder 17. The lifting rod 15 is raised and lowered by the piston rod protruding and retracting.

The seedling plant 2 is constructed as follows. A gear box 19 is mounted on the rolling shaft 20 behind the lower portion of the lifting frame 15 so as to swing therearound. The three implanted frames 21 arranged at equal intervals form the gear box 19
And an oval-shaped rotating case 22 is attached to both sides of each rear portion. A pair of implanted rods 23 are attached to each rotating case 22. When the rotating case 22 rotates counterclockwise when viewed from the right (as viewed from the front) with the power of the engine 8, the implanted rod 23 rotates with the planetary gears therein while maintaining the same posture. It is made in

A seedling receiving plate 24 having six seedling openings 24a is fixed to the implanting frame 21, and the pair of implanting rods 23 is provided.
At the beginning of the turn, the tip of
4a. A pair of columns 2
5 extends from the front of the left and right implantation frames 21 on the oblique front,
The seedling mounting table 26 is supported so as to move right and left at the upper part and the front part of the seedling receiving plate 24. The seedling mounting table 26 is divided into six partitions 29 by dividing the space between the left and right side walls 27 by five partition walls 28.
(FIGS. 2 and 3). Side wall 27 and partition 28
Means that the portion far from the seedling receiving plate 24 is lost in the middle (or the middle is narrowed in the middle), and each section 29
Are composed of a narrow width section 29A and a wide width section 29B.
Further, the seedling mounting table 26 is reciprocally driven left and right by the power of the engine 8. A belt conveyor-type seedling feeding device 30 is provided in each section 29, and operates when the seedling table 26 comes to the lateral end by the above movement, and the group seedling thereon is fed to the seedling receiving plate 24 side. It is made like this.

[0010] A band-shaped group seedling (long mat seedling) grown to a size of about 30 cm x 6 m is wound around the pipe 31 of Fig. 5 with the seedling inside, to form a roll 32. A pair of support plates 33a are fixed to the shaft 33, and when inserted, the pipe 31 is stopped by friction. A pair of positioning plates 3b are fixed to the shaft 33 outside thereof.

Receiving plates 34 having receiving grooves 34a are fixed on both sides of each wide section 29B.
5a is engaged with the receiving groove 34a. Both sides of the shaft 33 are supported by the respective receiving grooves 35b of the arms 35 on both sides of the wide section 29B, and the roll 32 is placed on the wide section 29B. The group of seedlings pulled out of the roll 32 passes through the narrow section 29A, and the rear end reaches the seedling receiving plate 24. When the rear end of the seedling table 26 moves right and left over the seedling opening 24a, the planting rod 23 cuts off one plant. The chipped seedlings
The implant is lowered by turning the implant rod 23 and inserted into the mud at its lower end. This process is repeated,
When the rear end of the collective seedlings is cut off, the seedling feeding device 30 is operated and the rolls 32 are rotated, and the collective seedlings thereon are fed out to the seedling receiving plate 24 side. Move in the opposite direction. This operation is repeatedly performed, and the seedlings are transplanted from the respective rolls 32 to the six rows.

The float 36 is connected to each of the implantation frames 2.
1 and slides on a mud surface as the traveling vehicle body 1 advances. Section 2 pulled out of roll 32
9 are extended by the seedling feeding device 30, and the side walls 27 and the partition walls 28 are moved by the lateral movement of the seedling table 26.
The width of the seedlings may be reduced due to the impact of the plant, and the transplanted seedlings may be missing or small. This can be eliminated or reduced by the following means.

Part 1. Seedling feeding device 30 of belt conveyor type
And a pair of right and left, and each section 29 has a seedling receiving plate 2
They are arranged in a C-shape as viewed from the side 4 (chain lines in FIG. 3). Then, the group seedlings fed out to the seedling receiving plate 24 side are spread by the pair of seedling sending devices 30, and the above-described reduction is eliminated. Part 2. As shown in FIGS. 3 and 4, pads 37 are provided on both sides near the seedling receiving plate 24 of each section 29 so as to move up and down, and when the seedling sending device 30 is feeding out the collective seedlings, it is raised. In order not to harm the feeding, when it is stopped, it is configured to push down the group seedlings. Then, the above reduction is reduced.

This can be configured as shown in FIG. A rotating shaft 38 is mounted laterally below the seedling mounting table 26,
A pair of left and right levers 39 is fixed to this. A pair of cranks 40 are provided on the left and right sides of the gear box 19, and are rotated counterclockwise in FIG. 6 by the power of the engine 8. Then, the seedling table 26 moves left (or right) by the reciprocating movement.
At the end, the right (or left) crank 40 pushes the right (or left) lever 39 clockwise to rotate the rotation shaft 38 in the same direction, and when the crank 40 separates from the lever 39,
A spring (not shown) is used to return to the position shown in FIG.

A drive shaft 41 is disposed after the rotation shaft 38,
A seedling sending device 30 is configured by wrapping a belt around the fixed wheel and the wheel arranged in front of the wheel. The side wall 27 and the partition wall 28 are formed by bending a thin plate into a U-shape, and a ratchet 42 is fixed to a drive shaft 41 below one partition wall 28, and a lever 43 is rotatably mounted beside the drive wheel 41. The lever 44 fixed to the rotation shaft 38 and the lever 43 are connected by a link 45, and when the rotation shaft 38 rotates clockwise as described above, the lever 43 rotates in the same direction, and When returning in the clockwise direction, the latter is pulled by the spring 46 and rotates counterclockwise to return to the position in FIG. Claws 47
Is attached to the lever 43, and when the lever 43 rotates clockwise, the pawl 47 bites into the ratchet wheel 42, and the drive shaft 41 rotates in the same direction. When the lever 43 rotates counterclockwise, the pawl 47 slides on the ratchet wheel 42 so that the drive shaft 41 stops. That is, when the seedling mounting table 26 reaches the left (or right) lateral end and the chipping of that end at the rear end of the group of seedlings is completed, the drive shaft 41 rotates clockwise as described above. Then, the seedling sending device 30 feeds out the collective seedlings on the seedling receiving plate 24 side.

A lever 43, a lever 44 and a link 45 are provided below the side wall 27 and the remaining partition wall 28 in the same manner as described above. A hook-shaped lifting rod 48 is connected to each side wall 27.
And slidably attached to the partition wall 28, and its legs are connected to the long holes 45a of the link 45 by pins 49,
When the lever 44 is swung as described above by being pushed down by the spring 50, the elevating rod 48 moves up and down. A hook-shaped connecting rod 51 is provided at the rear end of the lifting rod 48 on the side wall 27.
Is fixed to the rear end of the elevating rod 48 on the partition wall 28, and the inverted U-shaped connecting rod 51 is fixed.
7 is fixed.

When the operating lever 52 is operated, the link 45 rotates counterclockwise around the connecting shaft with the lever 44, and when the rear end is separated from the lever 45, the power transmission to the seedling feeding device 30 is changed to ""Cut". When the operation lever 52 is returned, the lever 45 is returned by being pulled by the spring 53, and the above-described power transmission is turned on. Therefore, if the drive shaft 41 is configured separately for each section 29 (or two sections 29), and the pawls 42 and the like are provided for each drive shaft, the desired section 29
Can be stopped.

The device for supporting the roll 32 can be constructed as follows. Part 1 (FIG. 7). Props 54 are provided on both sides of the front of the section 29. Radial support arms 55 are rotatably mounted inside each on a shaft 56. Both ends of the shaft 33 are supported by left and right support arms 55, and four rolls 32 are held in the figure. And the roll 32 at the lower end
-1, the seedlings are pulled out to the seedling receiving plate 24 side, and the seedlings are transplanted. When the seedlings of the roll 32-1 are exhausted, the support arm 55 rotates clockwise to transfer the seedlings from the roll 32-2. . same as below.

The pipe 31 and the shaft 33 having no group seedlings are received in a storage frame 57 at the front of the seedling mounting table 26. Part 2 (FIGS. 8 and 9). Guide posts 58 extend upward from the left and right of the middle of each section 29, and posts 59 are fixed behind each. A sprocket is provided at each end, and a chain 60 is wound around the front and rear sprockets. U-shaped receiving portions 61 are provided in alignment with the left and right chains 60, and each support both ends of a shaft 33 having a roll 32. Each chain 6
0, a rail 62 is provided, and when the chain 60 turns counterclockwise, the shaft 33 supported by the receiving portion 61 can be fed later thereon.

A guide groove 58a is provided inside each of the guide posts 58 so that both ends of the shaft 33 sent later are guided by this and then discharged later. That is, when the shaft 33 is fed by the chain 60 and the roll 32 reaches the guide support 58, the collective seedlings are pulled out later, and the seedlings are cut off from the rear end thereof, and transplantation is performed. As the transplant proceeds, the diameter of the roll 32 decreases, and both ends of the shaft 33 go down the guide groove 58a, and the roll 32 also goes down. When the collective seedlings are exhausted from the pipe 31, the shaft 33 is discharged later, and this and the pipe 31 are stored in the storage frame 63 later. In addition,
The guide pillars 58 and the pillars 59 that are adjacent to each other can be shared by one.

Spare seedling frames 66 are provided on the traveling vehicle body 1 on the left and right of the handle frame 12. Each spare seedling frame 63 is provided with four support shafts 64 protruding forward and backward and parallel in up and down and left and right, and a spare roll 32 is attached so that the pipe 31 is inserted into each. A stop plate 65 is provided at the end of the support shaft 64 to prevent the pipe 31 (roll 32) from falling off. The support shafts 64 are provided so as to rotate around the vertical axis, and spare rolls 32 are attached to the respective support shafts 64 from the front of the traveling vehicle body 1, and the respective rolls 32 are taken out backward and supplied to the seedling mounting table 26. I can do it.

[0022]

According to the present invention, the section of the seedling mounting table is composed of a narrow section and a wide section, and the roll formed by winding the band-shaped collective seedlings is placed on the wide section, and the portion drawn from the roll is narrow. As it reaches the seedling receiving plate through the width section, even if the width of the part pulled out from the roll due to the feeding of collective seedlings and the reciprocating movement of the seedling table left and right is reduced, the lateral end is There is no risk of leaving. For this reason, the occurrence of a lack or a small plant of the transplanted seedlings due to the separation of the lateral end of the collective seedlings from the side wall or the partition wall is prevented.

[Brief description of the drawings]

FIG. 1 is a right side view of a rice transplanter according to the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is an enlarged plan view of a part thereof.

FIG. 4 is a left side view thereof.

FIG. 5 is a perspective view of the equipment used for this.

FIG. 6 is an enlarged cut right side view of a part thereof.

FIG. 7 is a side view of a part of another rice transplanter.

FIG. 8 is a side view of a part of another rice transplanter.

FIG. 9 is a plan view thereof.

[Explanation of symbols]

 23 Seedling rod 24 Seedling receiving plate 24a Seedling opening 26 Seedling table 27 Side wall 28 Partition wall 29 Section 29A Narrow section 29B Wide section 32 Roll

Claims (1)

[Claims] 1. A seedling table 26 which reciprocates left and right before or after a seedling receiving plate 24 fixed to a frame is disposed. Sections 29 are formed side by side, and each section 29 is a narrow section 29A near the seedling receiving plate 24 and a wide section 29B far from the seedling receiving plate 24.
A roll 32 formed by winding a band-like group of seedlings is mounted on the wide section 29B, and a portion drawn from the roll 32 is provided so as to reach the seedling receiving plate 24 through the narrow section 29A. A seedling placement device in which a seedling opening 24a through which the insertion rod 23 passes downward is provided on the seedling receiving plate 24 on the extension of each narrow section 29A.