JPH0442977Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a planting claw for a rush planting machine.

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, rush planting machines that utilize rice transplanters have been proposed. Among these rush planting machines, there are some that use a scraping method using a planting rod, etc., which is almost the same as rice transplanters, to separate and plant rush seedlings one by one. (Japanese Patent Application Laid-Open No. 1983-15610, etc.).

Problems that the invention aims to solve However, when planting rush seedlings mechanically, if a scraping method similar to that used in rice transplanters is adopted, the following problems arise. In other words, in the case of rice seedlings, only new shoots (soft leaves) that have sprouted from the seed rice appear, while in the case of rush seedlings, about 7 to 8 hard stems grow out per unit planting, and the New shoots from the base (crotch) of the stem (5 to 6
The buds have germinated, and it is necessary to plant them without damaging the new buds.However, in the above-mentioned scraping method, the buds are indiscriminately scraped off where there are buds and where there are no buds. In many cases, the buds were damaged, and if the buds were damaged, they would not grow, resulting in missing plants, which had to be replanted by hand. In addition, in anticipation of damage to the buds, the amount of scraping should be increased (usually
(1.3 to 1.5 times), but the areas where the buds were lucky to avoid damage become too dense, which has a negative effect on subsequent growth, etc. In any case, the entire field Due to variations in growth, stable planting is not possible, and 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 has been developed to plant rush seedlings, which have been divided into unit planting plants, onto the field using a planting claw that rotates in a loop-shaped trajectory. In the grass planting machine, the planting claw has a substantially U-shaped cross section, and the rotating tip side of the planting claw is formed into a bottomless open shape, and a stem tip is formed near the rotating base end of the planting claw. The above-mentioned problem is attempted to be solved by providing a presser plate.

Function When planting rush seedlings that have been divided into unit planting plants, the entire length of the seedlings is held on three sides by the planting claws, which have a roughly U-shaped cross section. There is no damage to the rush seedlings, and since the tips of the hard stems are pressed down from above by the stem tip presser plates, the rush seedlings do not slip out of the planting nail or float up when entering the soil. This ensures stable and reliable planting at all times.

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 kick-out plate of a seedling fast-forwarding 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 rapid feed mechanism for seedlings, and as shown in FIG. 12, a shaft 16 movably connected to a drive side (not shown) and a crank plate 17 fixed to the shaft 16 rotate in the direction of arrow A, thereby moving the crank plate 1.
A kick-out board 18 pivotally connected to 7 rotates while drawing an elliptical locus to rapidly transport the seedlings drawn out from the seedling case 1 into the seedling guide path 10 onto the receiving member 13. Reference numeral 19 denotes an arm, one end of which is pivoted to the fixed shaft 20, and the other end pivoted to the base end side of the kick-out 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 interlocking 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. It is designed to be carried to a position and planted in the soil, and includes a seedling feeding mechanism 4 and a fast-forwarding mechanism 15.
The planting claws 21 and 21 are configured to operate in relation to each other at predetermined timings set in advance.

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.

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 a proper feeding posture by the elastic material 7 and separated from the following seedlings at a constant interval.
At the same time, the seedlings 3 are fed out into the guide path 10 by the jump plate 18 of the fast-forwarding mechanism 15.
The seedlings are quickly transported through the seedling receiving member 13 and are once pooled on the seedling receiving member 13. At this time, the planting claw 21 descends to a position approximately halfway between the A position and the U position shown in FIG. At the same time, the seedling receiving member 13 is forcibly pushed open, carried to the seedling planting position in the field, and planted in the soil. In addition, the wrapping tape 2 after separating the seedling 3
is sequentially wound onto the take-up reel 14 through a cutout hole 11 provided in the guide plate 10a, bypassing the outer periphery of the wheel body 6.

By the way, when the planting claw 21 clamps the seedling 3 on the seedling receiving member 13 and until it plunges into the soil and planting is completed, the rush seedling 3 is held in the concave portion 21b of the U-shaped planting claw 21. The entire length of the seedling is held on three sides. For this reason, 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 does 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 claws 21, etc., and the number of seedlings can be planted at 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 mentioned above, the present invention is a rush planting method in which rush seedlings are divided into unit planting plants and planted in the field using planting claws that rotate in a loop-shaped trajectory. In the planting machine, the planting claw has a substantially U-shaped cross section, and the rotating tip side of the planting claw is formed into a bottomless open shape, and a stem tip pressing plate is provided at a position near the rotating base end of the planting claw. Since this is provided, it is possible to prevent the planting claws from damaging the new sprouts and the seedlings from floating up from the soil during planting, and it is possible to perform stable and reliable planting.

[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. 12 is a plan view of the seedling fast-forwarding 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 schematically showing the rush seedling planting mechanism equipped with the present invention, and Fig. 18
The figure is a side view of the same as above. In the figure, 21 is a planting nail, 21a is a stem tip presser plate, and a is a rush seedling.

Claims (1)

[Scope of utility model registration request] In a rush planting machine that uses a planting claw that rotates in a loop-shaped trajectory to plant rush seedlings divided into unit planting plants onto a field, the planting claw is shown in a cross-section. A rush planting characterized by having a U-shape, the rotating tip side of the planting claw being formed into a bottomless open shape, and a stem tip presser plate being provided at a position near the rotating base end of the planting claw. Planting nails of the planting machine.