JPH0445453Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a transplanting machine, particularly a transplanting machine suitable for planting rush seedlings divided into unit planting plants.

Conventional technology Rush is often planted and grown in paddy fields as a secondary crop for rice, and the conventional method of planting rush is to temporarily plant it in a nursery, divide it appropriately, then pull it out from the nursery, divide it, and plant it in units in rice fields. Shares (hereinafter also referred to as 1 share)
The method of hand-planting has been adopted, but recently,
In response to demands for mechanization and labor saving, transplanting machines using rice transplanters have been proposed (for example, Japanese Patent Application Laid-open No. 15610/1983).

Problems that the invention aims to solve By the way, when planting rush seedlings mechanically, how carefully the seedlings are handled and planted without damaging the new shoots has a large effect on the subsequent growth of the seedlings. It is something. In other words, in the case of rice seedlings, only new shoots (soft leaves) that have sprouted from the seed rice appear, whereas in the case of rush seedlings, about 7 to 8 hard stems grow out per unit planting, and the New shoots (5 to 6) are sprouting from the base (crotch) of the stem, and it is important to plant them without damaging them. However, with conventional methods, even though the plants were carefully divided manually, there was no mechanism in place to properly plant each divided plant. Moreover, many rice transplanters use a scraping method similar to the planting rod of rice transplanters, so they scrape and plant indiscriminately, regardless of where new sprouts are sprouting. It often damages the new shoots, and if the new shoots are damaged, the rush seedlings will not grow, resulting in missing plants, so they must be supplemented by hand. In addition, in anticipation of damage to the buds, the amount of scraping is adjusted to be larger (about 1.3 to 1.5 times the normal amount) before planting. If it becomes too large, it may have a negative effect on subsequent growth.In any case, the growth of the entire field will be uneven, making stable planting impossible, and it seems that there is still a long way to go before it can be put to practical use.

Means to Solve the Problems Therefore, the present invention provides a seedling feeding mechanism that sequentially feeds out seedlings from a seedling case in units of planted plants, and a seedling feeding mechanism that moves the seedlings fed out by the seedling feeding mechanism to a position where planting claws start holding the seedlings. A seedling guide path to guide the seedlings, a flexible seedling receiving member provided at the seedling clamping start position of the seedling guide path, and a flexible seedling receiving member provided at the starting position of the seedling guide path to guide the seedlings from the side in the direction of the culm of the seedlings. The above-mentioned problems are solved by providing a transplanter equipped with a feeding mechanism that abuts and feeds the seedlings onto the seedling receiving member.

Function: The seedlings housed in the seedling case are fed out one by one into the seedling guide path by the seedling feeding mechanism. The fed out seedlings are forcibly fast-forwarded in the seedling guide path by the feeding mechanism to the position where the planting claws start holding the seedlings, and the seedlings are separated from the succeeding seedlings at a coarse interval.
The seedling is then received on the seedling receiving member provided at the seedling clamping start position and is on standby. At this time, the planting claws descend, grasp the seedlings on the seedling receiving member, and carry them to the planting position in the soil to complete the planting.

Example 1 is a seedling case for rush seedlings divided into unit planting plants (one plant).
Rush seedlings 3 are stored in a roll-like manner, each plant being wound at predetermined close intervals. A seedling dispensing mechanism 4 for sequentially dispensing the seedlings 3 one by one is disposed on the dispensing start end side of the seedling case 1. This feeding mechanism 4 has elastic members 7 made of sponge or the like fixed at a predetermined pitch to the left and right outer peripheries of a wheel 6 fixed to a drive shaft 5. A protrusion 9 is provided which engages with a small hole 8 drilled across. In addition, a seedling guide passage 10 for guiding the let-out seedlings 3 is extended integrally with the case 1 between the start end of the seedling case 1 and the start position of seedling clamping by planting claws, which will be described later. Each of the forming guide plates 10a and 10b on both sides has a cutout hole 11 so that a part of the wheel body 6 faces into the guide passage 10.
A cutout hole 12 is formed into which a pop-up plate of a seedling feeding mechanism, which will be described later, is fitted. 13 is seedling guide path 1
A seedling receiving member such as a flexible brush is provided at the seedling clamping starting position of 0, and 14 is a reel for rewinding the empty tape. Reference numeral 15 denotes a seedling feeding mechanism, and as shown in FIG. 12, this seedling feeding mechanism 15 has a shaft 16 interlockingly connected to a drive side (not shown) and a crank plate 17 fixed to the shaft 16, which moves in the direction of arrow A. By rotating, the pop-out plate 18, which is pivotally connected to the crank plate 17, rotates while drawing an elliptical trajectory, and the cutout hole 12 is aligned with the timing of the seedling 3 being fed out from the seedling case 1 into the seedling guide passage 10. It intervenes in the seedling guide passage 10 from a direction perpendicular to the culm direction of the seedlings 3, and the front surface of the tip side of this pop-up plate 18 comes into contact with the culm direction of the seedlings 3 from the side to receive the seedlings. It is designed to rapidly advance to above the stop member 13. Reference numeral 19 denotes an arm, one end of which is pivotally connected to the fixed shaft 20 and the other end to the proximal end of the ejector plate 18.

21 is a planting claw, and this planting claw 21 is rotated drawing a substantially fan-shaped loop-shaped trajectory P by a circulation trajectory movement mechanism M consisting of an arm 22, a link 23, a rod 24, etc., as shown in FIG. The planting claw is configured to 21 descends to a position approximately midway between the A position and the C position shown in FIG. 12, grips the seedlings 3 on the seedling receiving member 13, and forcibly pushes the seedling receiving member 13 open to plant the seedlings in the field. The seedling feeding mechanism 4, the feeding mechanism 15, and the planting claw 21 are configured to operate in conjunction with each other at predetermined timings.

By the way, the planting claw 21 has a substantially U-shaped cross section and is formed in an open shape with no bottom on the rotating tip side. A stem tip presser plate 25 is integrally provided at a position near the rotational base end of the planting claw 21. In the illustrated example, the stem tip presser plate 25 is formed into a disk shape with an edge 25a having a surface area larger than the seedling holding area of the planting claws 21, and is placed eccentrically toward the rear in the direction of movement of the machine (in the direction of arrow B in FIG. 1). A structure fixed to an attached claw 21 is shown.

In the figure, 21a is an anti-wear rod fixed to the tip of the planting claw 21, 22 is a tape winding roll supported internally in the seedling case 1, a support arm 23 and a bullet 24.
The force is applied to the seedling feeding side through the . 26 is a base plate, 27 is a sled body, a is a sprout of rush seedling 3, b is a stem, and c is a root.

19 to 21 show the tape winding roll 22
This shows another example of roll 2.
A disk 28 is integrally provided on the outer periphery of the lower end of 2, and a handle 31 on a round bar having a boss 30 for fitting the roll support shaft 29 is integrally provided inside the upper end. A pipe 33 is inserted through the bearings 32, 32 so as to be relatively rotatable, and a plurality of oil seals 34 are provided between the bearings 32, 32.
is interposed. On the other hand, the upper flange portion 33a of the pipe 33 is provided with a notch 35 into which the handle 31 is removably inserted, and the roll support shaft 2
A pin hole 36 is provided at the upper end of the holder 9, and an R pin 37 for preventing removal is inserted into the pin hole 36. With this configuration, the tape-wrapped roll 22 can be attached and detached from the roll support shaft 29 with a single touch, facilitating the supply of seedling rolls.
4 applies an appropriate braking action to the roll 22, so that the tape-wrapped roll 22 does not slacken, and the action of feeding out the seedlings becomes even better.

The rush seedling planting mechanism with the above structure is not shown, but it is mounted on a frame with a sled body, floats, etc. for sliding on the rice field, and is detachably connected to the rear of the running part of a riding rice transplanter, etc. Although the power is introduced from the engine in the traveling section, it can also be constructed as a dedicated machine.

In the above configuration, the rush seedlings 3 stored in the seedling case 1 via the wrapping tape 2 are fed out one by one by the feeding mechanism 4, but at this time, the rush seedlings 3 are immersed in the seedling guide path 10. Each seedling 3 is held in an appropriate feeding posture by the elastic member 7 provided therein, and is separated from the following seedlings at a constant interval in the seedling guide path 10.
At the same time, the seedlings 3 are fed out inside the guide passage 10 by the jump plate 18 of the feeding mechanism 15, while being held in an appropriate feeding posture by the left and right guide plates 10a, 10b, and are rapidly forwarded to meet the following seedlings. The seedlings are separated at coarse intervals and are temporarily pooled on the seedling receiving member 13. At this time, the planting nail 21 is the first
The seedlings 3 on the seedling receiving member 13 are held between the concave portions 21b of the U-shaped planting claws 21, and the seedling receiving member 13 is forcibly moved. Push the seedlings open and transport them to the seedling planting position in the field and plant them in the soil. Note that the empty seedling wrapping tape 2 after the seedlings 3 have been released is inserted into the cutout hole 1 provided in the guide plate 10a.
1 to the winding reel 14 around the outer periphery of the wheel body 6.

By the way, when the seedlings 3 that have been fed into the seedling guide passage 11 in a separated state one by one are fed to the top of the seedling receiving member 13 by the jump plate 18 of the feeding mechanism 15, they follow an elliptical trajectory. The pop-up board 18, which rotates while drawing, approaches the seedling 3 from the rear side, contacts the culm from the side, and pushes the seedling in the direction of the seedling receiving member 13, so that the pop-up board 1
8 does not damage the new shoots a of rush seedlings 3. In other words, the seedlings 3 are not separated and sent one by one by being pierced from the culm direction;
This is because the seedlings are sent by coming into contact with the culm direction of the seedlings 3 that have been separated in advance from the side, so that the impact on the sprouts is extremely small. In addition, when the planting claws 21 clamp the seedlings 3 on the seedling receiving member 13 and until they plunge into the soil and complete planting, the rush seedlings 3
The seedling is held on three sides by the concave portion 21b of the U-shaped planting claw 21 over the entire length of the seedling. Therefore, the sprout a emerging from the base of the stem b is also protected by being wrapped by the three sides of the planting claw 21, so that the planting claw 21 will not damage the sprout a.

Further, since the tip of the hard stem b is pressed from above by the stem tip presser plate 25, the rush seedling a does not slip out of the planting claw 21 or float when entering the soil. Furthermore, even if the tip of the stem b falls apart, the stem tip presser plate 25 has a large surface area, has an edge 25a, and is fixed to the planting claw 21 in a backward eccentric state, so that the seedling 3 will not be damaged. Although the holding action is performed more reliably, the planting nails 21
After the seedlings 3 reach the seedling planting position in the soil, the planting claws 21 rise almost vertically as shown in the loop-shaped trajectory P in FIG. It is reliably planted in the soil by pulling it out from the tip of the claw 21.

At this time, since the seedling root portion is pressed against the soil wall at a predetermined planting depth, the seedling 3 will not be carried around together with the planting claw 21. In this way, at the time of planting, the sprout a is protected by being wrapped in the planting claw 21, so that the sprout a
The seedlings will not be damaged by the planting nails 21, etc., and the number of seedlings can be planted to the specified number, so there is no need to do extra work such as dense planting or supplementary planting in anticipation of damage to the seedlings. Not only is this unnecessary, but the growth after planting is also uniform throughout the field.

Effects of the Invention As described above, the transplanting machine of the present invention includes a seedling feeding mechanism that sequentially feeds out seedlings from a seedling case in unit planting units, and a seedling feeding mechanism that starts holding the seedlings by the planting claws. A seedling guide path that guides you to the location,
A flexible seedling receiving member provided at the seedling clamping start position of the seedling guide passage, and a seedling receiving member that abuts the seedlings fed out into the seedling guide passage from the side in the direction of the culm of the seedling. Since the device is equipped with a feeding mechanism that feeds the seedlings to the top, the feeding mechanism that feeds the seedlings fed into the seedling guide path to the top of the seedling receiving member pierces the seedlings one by one from the culm direction. Because the device does not send the seedlings separately, but instead feeds the seedlings in contact with the culm from the side, damage to the seedlings can be minimized, especially when transplanted seedlings are rush seedlings. In some cases, the new shoots are not damaged when separating and transporting the seedlings, and therefore, damage to the new shoots may result in partial loss of plants after transplanting or uneven growth of the seedlings. This method has the advantage of being able to perform stable and highly accurate planting over the entire field.

[Brief explanation of the drawing]

Figure 1 is a side view showing the trajectory of the planting claws, Figure 2 is a perspective view of the planting claws, Figure 3 is a side view of the planting claws holding the seedlings, and Figure 4 is a view of the rush seedlings. A front view, FIG. 5 is a partially cutaway side view showing another embodiment of the stem tip presser plate, FIG. 6 is a plan view of the seedling case and the seedling feeding mechanism, FIG. 7 is a side view of the same, and FIG. 8 Figure 9 is a perspective view of the seedling case, Figure 10 is a perspective view of the seedling feeding mechanism, and Figure 11 is a perspective view of the rush seedlings rolled up one by one using a wrapping tape. FIG. 12 is a plan view of the seedling feeding mechanism, FIG. 13 is a side view of the same as above, FIG. 14 is a perspective view of the pop-up board, and FIG. 15 is a perspective view of the seedling receiving member. , Fig. 16 is a perspective view of the seedling guide passage, Fig. 17 is a plan view showing the outline of the rush seedling planting mechanism equipped with the present invention, and Fig. 18
The figure is a side view of the same as the above, and Figures 19 to 21 show other embodiments of the tape winding roll.
The figure is a vertical side view, Figure 20 is a plan view of the same as above, and Figure 2 is a side view.
FIG. 1 is a partially cutaway plan view of the handle and the flange. In the figure, 1 is a seedling case, 3 is a seedling, 4 is a seedling feeding mechanism,
10 is a seedling guide path, 13 is a seedling receiving member, 15 is a seedling feeding mechanism, and 21 is a planting claw.

Claims (1)

[Scope of utility model registration request] a seedling feeding mechanism that sequentially feeds out seedlings from a seedling case in unit planting units, a seedling guide path that guides the seedlings fed out by the seedling feeding mechanism to a position where planting claws start holding the seedlings, and a seedling guide path that guides the seedlings from the seedling case. A flexible seedling receiving member provided at a clamping start position, a feeding mechanism that abuts the seedlings fed into the seedling guide passage from the side in the direction of the culm of the seedlings, and sends the seedlings onto the seedling receiving member. A transplant machine characterized by being equipped with the following.