JPS5939861Y2 - Rice transplanter seedling stand - Google Patents

Description

[Detailed description of the invention] This invention relates to a seedling platform that is installed in the planting section of a rice transplanter that performs rice planting work in a flooded field and on which seedling mats to be planted in the field are placed. be.

In other words, this invention aims to ensure that seedling mats that are cut off as seedling blocks from the lower end of each row of seedling compartments on a seedling platform by the planting claws do not leave any residue on both sides of the flat end of the seedling compartments. It is an object of the present invention to provide a new seedling mounting stand for a rice transplanter, which performs seedling block cutting and is designed to prevent so-called seedling falling.

Regarding the illustrated embodiment, to explain the structure of the seedling stand of the rice transplanter according to this invention, as shown in FIG. A transmitsumoyon 3 that constitutes the fuselage is installed at the rear of the fuselage, and at the rear of the fuselage, there is a seedling platform 4 that is installed diagonally upward in the rear direction and is capable of horizontally reciprocating movement, and a seedling platform 4 that is driven to move up and down. A planting section 6 equipped with planting claws 5 and the like for cutting individual seedlings from a seedling mat and planting them in a field is provided, and a control handle 7 and a machine body that extend rearward and upward from the rear end of the planting section 6 are provided. This invention has been implemented as follows in a walk-behind rice transplanter equipped with a float 8 and the like for supporting the rice from below.

That is, as shown in FIG. 2, the seedling loading platform 4 has multiple rows of seedling loading sections 4 according to the number of rows for seedling planting by the illustrated rice transplanter.
In A, the seedling tray 4 is partitioned by vertical ribs 9 in the width direction, but on both sides of the lower end of the seedling loading section 4A of each row, there are extensions of the vertical ribs 9 as shown in FIGS. A pair of sliding blocks 11 are provided which are slidably supported by the portion 9a and can be viewed from the window hole 10 of the extension portion 9a toward the width of the seedling loading section 4A.

Each sliding block 11 is moved by a compression spring 12 disposed within the vertical rib extension 9a to a position where the stopper part 11a on the sliding block 11 comes into contact with the inner wall surface of the extension 9a on the outer periphery of the window hole 10. , are biased to protrude in the width direction of the seedling loading section 4A, and in this state where both sliding blocks 11 are made to protrude, the width L1 between the end faces of both sliding blocks 11 is equal to the width L1 of the seedling loading section 4A. Width.

It is designed to be slightly more expensive than the original. A cam surface 11b is formed on the end surface of each sliding block 11,
As shown in FIG. 3, when the planting claw 5 passes through each sliding block 11 position from the upper side to the lower side, the cam surface 11b is pushed by the planting claw 5, and the sliding block 11 is vertically moved. It is made so that it can be made to retreat in the direction of recessing into the rib extension part 9a.

The blocks 11 on both sides are used as seedling stands 4 as shown in FIG.
Interlocking rods 15, one end of which is pivotally supported by each sliding block 11, are pivotally connected to both ends of a rotating arm 14 that is rotatably supported around a fixed fulcrum shaft 13 on the lower side. They are interlocked and connected to each other so that when the sliding block 11 is moved backward, the sliding block 11 on the other side is also moved backward in conjunction.

Similarly, as shown in FIG. 4, a lock pin 16 is disposed on the sliding block 11 on the negative side and is inserted into the vertical rib extension 9a from the bottom side of the extension 9a so as to be movable downward. The lock pin 16 is moved upward by a compression spring 18 disposed on the lock pin 16 between a spring bearing ring 17 fixed in the middle and the inner bottom surface of the vertical rib extension 9a. Forced.

The tip of this lock pin 16 is normally in contact with the lower surface of the sliding block 11, but when the sliding block 11 on one side is retreated as shown in FIG.
The action causes the slide block 11 to protrude upward and engage the proximal end surface 11C of the hook-shaped end of the sliding block 11, which has a hook-shaped end shape, so that the - side sliding The movable block 11 is locked in the retracted position.

Therefore, in this locked state, the sliding block 1 on the other side
1 is also locked in the retracted position via the aforementioned interlocking coupling means 14.15.

When placed on the seedling stand 4 shown in the figure, as usual, from the bottom side of the seedling stand 4, through the window hole of the seedling stand 4, as shown in Fig. 2.6, onto each seedling holding section 4A. Star Wheel 1
A seedling longitudinal feeding device with 9 is provided.

As shown in FIG. 6, this seedling vertical feeding device has a follower cam 22 that is intermittently driven by a drive cam 21 on a vertical feeding drive shaft 20 in the planting section 6, and a star wheel shaft on which the star wheel 19 is fitted. The driving cam 2 is provided on the seedling table 4 at the horizontally feeding end of the seedling table 4 in conjunction with the horizontally feeding the seedling table 4.
1 drives the follower cam 22, thereby obtaining rotation of the star wheel shaft 23 and the star wheel 19 thereon, and the star wheel 1 engages with the seedling mat on the seedling platform 4.
The seedling mat is vertically fed with 9 rotations.

The aforementioned lock pin 16 is interlocked and connected to the aforementioned seedling vertical feeding device as follows.

That is, as shown in FIG. 5, the follower cam 22, which is rotatably biased by a tension spring 24 in the direction of engagement with the drive cam 21, is provided with an operating element 25 that stops the proximal end of the inner wire 25a. The tip of the inner wire 25a of this operating element 25 is fixed to the lower end of the lock pin 16.

The spring force of the above-described tension spring 24 is set to be greater than the spring force of the compression spring 18 that urges the lock pin 16 to move upward, so that the seedling pine is vertically fed by the seedling vertical feeding device. When this is almost completed, the inner wire 25 is rotated by the spring force of the tension spring 24 to rotate the follower cam 22.
a is tensed, and thereby the lock pin 16 is moved downward against the spring force of the compression spring 18, and is disengaged from the surface 11c of the sliding block 11, so that the above-mentioned lock is released. It is being done.

The seedling loading stand 4 of the rice transplanter according to this invention is constructed as described above, and when performing rice planting work in a flooded field, the sliding pieces 11 on both sides of the lower end of each seedling loading section 4A are positioned at the protruding position by the action of the compression spring 12, and the width of the lower end of each seedling compartment 4A is reduced to the width L1 as described above.

Then, move laterally 1. Seedling blocks are cut out from the seedling mat by the planting claws 5 sequentially from the top of the lower end of each seedling compartment 4A of the seedling platform 4 in the offshore direction. When it comes to the step of cutting out the block, as described above, the sliding block 11 at the side end is pushed by the planting claw 5, and therefore the sliding block on the other side that is interlocked and connected to the sliding block 11. 11 is also a vertical rib extension part 9a
The planting claws 5 are retracted in the direction of inward retraction, and the planting claws 5 reliably pick up the seedlings at the side end of the seedling loading section 4A without interference from others.

Immediately after picking the seedlings at this side end, the seedling pine is vertically fed by the seedling vertical feeding device described above, and the sliding blocks 11 on both sides are moved back by the planting claws 5 as described above. At this time, the lock pin 16 moves upward under the action of the compression spring 18 and is locked in the retracted position.

is equal to

As described above, the sliding block 11 is locked in the retracted position only when the vertical feeding of the seedling pine by the vertical seedling feeding device is almost completed. Since this is carried out by the follower cam 22, there is no problem in vertically feeding the seedlings.

Upon the above-mentioned unlocking, the sliding piece 11 is again projected and moved by the action of the compression spring 12, and the width of the lower end of the seedling collecting section 4A is reduced to the reduced width L1.

As described above, the seedling stand of the rice transplanter of this invention is arranged on both sides of the lower end of the seedling collecting section 4A of each row in the seedling holding stand 4, and is supported so as to be movable along the width direction of the seedling taking section 4A. Tori section 4A
This is a pair of sliding blocks 11 which are biased to protrude in the direction of the mountain, and whose protruding position measures the width of the seedling section 4A by a certain amount at the lower end of the section 4A. The sliding block 11 is provided so that when the planting claw 5 passes through the sliding block 11 position, the sliding block 11 is moved backward;
A locking means 16.18 for releasably locking the sliding block 11 in the retreated position is interlocked and connected to the seedling vertical feeding device 19-23 so that the lock can be released when the vertical seedling feeding is almost completed. This feature allows the planting claws to be securely attached from the lower end side of the seedling-taking section of each row without being interfered with, which could cause failure in seedling collection due to escape due to the retreat of the sliding block. We decided to pick up all the seedlings without leaving any seedlings behind, and this caused the previously seen seedlings to fall, in other words, a block of seedlings at the side edge remained on the seedling stand without being grabbed by the planting claws, and the lower end of the seedling pine was placed on top of this. Inconvenient phenomena such as curling up and turning over will not occur, and the occurrence of missing plants will also be prevented.

And, although it is like this, the seedling stand of this invention,
This is because the sliding block, which has been retracted by the planting claw, is locked in the retracted position until the vertical feeding of the seedlings is completed, so that the width of the lower end of the seedling section is the normal width. This method does not involve any inconvenience in vertically feeding the seedlings.

[Brief explanation of drawings]

Figure 1 is a side view of a rice transplanter equipped with an embodiment of this invention, Figure 2 is a plan view of the main parts of the same embodiment, and Figure 3 is the same as in Figure 2.
4 is a vertical sectional view of the main part of the same embodiment, FIG. 5 is a mechanism diagram showing the main part of the same embodiment, and FIG.
The figure is a longitudinal sectional side view of the same embodiment. 4... Seedling stand, 4A... Seedling section, 5
...planted nail, 9...vertical rib, 9a...
... Extension part, 10 ... Window hole, 11 ...
...Sliding block, lla... Part of the stopper,
11b...Cam surface, 12...Compression spring, 13...Fixed fulcrum shaft, 14...Rotating arm, 15...Interlocking Rod, 16...Lock pin, 17...Spring bearing ring, 18...
... Compression spring, 19 ... Star wheel, 2
0...Vertical feed drive shaft, 21...Drive cam, 22...Follower cam, 23...
Star wheel shaft, 24... tension spring, 25
......Operation element, 25a...Inner wire.

Claims (1)

[Scope of utility model registration request] A pair of slides are disposed on both sides of the lower end of each row of the seedling-loading section in the seedling-loading stand, are supported so that they can move forward and backward along the width direction of the seedling-loading section, and are biased to protrude inward and toward the width of the seedling-loading section. A pair of sliding blocks that are movable blocks whose protruding position slightly lines the width of the seedling loading section at the lower end of the section, and when the planting claw passes through this sliding block position, the sliding block a locking means for releasably locking the sliding block in the retracted position is interlocked and connected to the seedling vertical feeding device so that the lock can be released when the vertical seedling feeding is substantially completed; A special feature is the provision of a seedling stand for the rice transplanter.