JP3234466B2 - Direct sowing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct sowing machine for directly sowing seeds in a field.

[0002]

2. Description of the Related Art Conventionally, in order to increase the versatility of a rice transplanter with a side-strip fertilizer, it has been used as a direct sowing machine for directly sowing seeds in a field instead of performing seedling planting. Proposed.

[0003]

However, in the case of direct sowing using a side fertilizer of a rice transplanter, for example,
Like the six-row rice transplanter shown in FIG.
a6 is a pair of right and left planting strips (in FIG. 7, a pair of b1 and b2, b
3 and b4, and b5 and b6), so that fertilization was applied to the respective inward places.
Among 1 to b6, two fertilizers are applied between adjacent strips (in FIG. 7, between planting strips b1 and b2, between b3 and b4, between b5 and b6), and no fertilization is performed. The places not made (in FIG. 7, between the planting strips b2 and b3, b4 and b5
If the side fertilizer is used as it is as a direct sowing device, it will be grown so that the direct sowing lines are alternately arranged in the right and left direction and the state in which the direct sowing lines are separated more than the close width. However, there is a problem in that although the direct sowing strips adjacent to the left and right are desirably at equal intervals, the growth is uneven. In order to solve this point, it is also conceivable to change the fertilizer application position of each side fertilizer, or to provide a seed rice flow passage for direct sowing separately from the fertilizer flow passage and switch the passage. There has been a problem that it takes time and effort to change the position and switch, and the structure becomes complicated.
Further, in the case of direct sowing using the side-strip fertilizer of the rice transplanter, since direct sowing using the fertilizer, fertilization cannot be performed simultaneously with direct sowing.

[0004] In addition, a flow-down path for fertilization and a flow-down path for direct sowing and a groove-forming apparatus different from the fertilizer-applying apparatus are provided in the side-row fertilizer so as to be replaceable. It is also conceivable to arrange the positions of the groove devices at equal intervals on the left and right, but this method has a problem that it takes time and effort to replace the device with a downflow path for direct sowing or a groove device. .

[0005] The present invention has been made in view of the above-mentioned circumstances, and enhances the versatility of a rice transplanter, and makes it possible to apply fertilizer simultaneously with direct sowing in a good direct sowing operation in which the intervals between rows are equal. However, it is an object of the present invention to provide a direct sowing machine that can be performed with a simple structure.

[0006]

[Means for Solving the Problems]

(Constitution) In the direct sowing machine according to claim 1 of the present invention, a fertilizing device is provided behind a seedling planting device provided at a rear portion of the body, and a direct sowing device is provided behind the fertilizing device. A first gear mechanism for driving a fertilizer feeding mechanism of the fertilizer application
A first drive arm is provided, the first drive arm and the planting mechanism of the seedling planting apparatus are interlocked and connected via a push-pull rod, and the seed- pulling mechanism of the direct sowing apparatus is driven.
Providing a second drive arm for the second gear mechanism;
The drive arm and the second drive arm are interlockingly connected via a push-pull rod.

(Operation) According to the above configuration of the present invention, a fertilizer application device is provided behind a seedling planting device provided at a rear portion of the body, and a direct sowing device is provided behind the fertilizer application device. Since the fertilizer feeding mechanism of the fertilizer applicator and the planting mechanism of the seedling planting apparatus are linked and connected, and the drive system of the fertilizer feeding mechanism and the seed padding mechanism of the direct sowing device are linked and connected via the transmission mechanism, By arranging a plurality of direct sowing devices on the left and right so that the adjacent intervals between the direct sowing lines arranged side by side are equally spaced in the left and right direction, the straight sowing lines are equally spaced on the left and right In addition, the transmission to the direct sowing device can be performed by using the fertilizer feeding mechanism of the existing fertilizer application device behind the seedling planting device.

(Effect) According to the above configuration of the present invention, a rice transplanter having a well-known structure including a seedling planting device at the rear of the machine body and a fertilizer device at the rear thereof is used, and a direct sowing is further separately performed behind the fertilizer device. By adopting a simple structure that only requires a device, direct sowing can perform good direct sowing work at equal intervals on the left and right, and the transmission structure to the direct sowing device can be obtained from the seedling planting device side. As a result, the structure can be simplified, for example, the transmission distance can be shortened. In addition, when performing rice transplanting without performing direct sowing, normal planting can be performed by removing the direct sowing device from the machine body, thereby increasing the versatility of the rice transplanter and reducing costs. . In addition, since fertilization can be performed using a fertilizer device at the same time as direct sowing work,
Work efficiency is better than separate fertilization work. Furthermore, since direct sowing work can be performed only by separately attaching a direct sowing device to an existing rice transplanter, the cost can be reduced compared to purchasing a working machine dedicated to direct sowing work.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a direct seeder. The direct sowing machine includes a pair of left and right front wheels 1, 1 and rear wheels 2, 2.
The engine 3, the transmission case 5, and the boarding control section 6 are mounted on the fuselage 3 supported so that it can run with
In the riding type rice transplanter 10 for 6-row planting equipped with a seedling planting device 8 and a side-row fertilizing device 9 at the rear end of the machine body 3 so as to be able to move up and down by a four-link mechanism 7, 9
The direct sowing device 11 is further attached to the rear part.

The direct sowing devices 11 are arranged at equal intervals on the left and right at the same number as the number of planting lines in the seedling planting device 9. In particular,
As shown in FIGS. 1 to 4, the direct sowing device 11 is connected to the six-row seedling planting device 9 so as to perform six-row direct sowing.
They are arranged side by side. The interval between the right and left straight sows in the direct sowing device 11 is set to 30 cm. The seedling planting device 9 includes a seedling rest 12 slid horizontally left and right, three planting transmission cases 13 juxtaposed on the left and right, and the left and right sides of the rear end of each planting transmission case 13. The rotating planting case 14 to be disposed, a pair of planting arms 15 constituting a planting mechanism provided in each planting rotating case 14, and the grounding float 1
6 is mounted. Each side-strip fertilization device 9 is disposed behind the seedling-planting device 9 so as to correspond to each planting streak. The side-strip fertilizer 9 has a hopper 17 for storing fertilizer at an upper portion, and a fertilizer feeding mechanism 18 for feeding granular fertilizer downward from the hopper 17 is provided in each hopper 17. The fed-out fertilizer is flowed down through a flow-down guide hose 19 into a groove formed by a groove forming device 20 attached to the ground float 16. The drive of the fertilizer feeding mechanism 18 is performed by rotating the driving shaft 22 of the fertilizer feeding mechanism 18 in only one direction via the push / pull rod 21 which is eccentrically positioned on the rotation case 14 for the planting. Directional clutch (not shown)
This is achieved by transmitting the push-pull force to the first drive arm 24 so as to change it into a rotational force. This first drive arm 2
4 is a seed rice feeding mechanism 2 of the direct sowing device 11 described later.
Push-pull rod 2 as a transmission mechanism for transmitting to
6 is also provided.

Next, the direct sowing apparatus 11 will be described. As shown in FIGS. 2 to 4, each of the planting transmission cases 13
A support bracket 27 is provided at the rear end of the device, and each direct sowing device 11 is supported by a support frame 28 connected to the support bracket 27. Each direct sowing apparatus 11 has a hopper 29 for storing seed rice at an upper portion, and a seed feeding mechanism 25 for feeding seed rice downward from the hopper 29 is provided in each hopper 29. The fed seed rice is flowed down through a flexible flow guide hose 30 into a groove formed by a groove generator 32 provided on the support bracket 27 via a link mechanism 31 so as to be vertically movable. You. The link mechanism 31 is constructed by connecting a pair of upper and lower parallel links 31a and 31b across the support bracket 27 and the lower frame 33 of the direct seeding apparatus. The direct seeding device lower frame 33 is provided with the direct seeding device 1
It is a horizontally long bar member that integrally connects the one groove generator 32. The link mechanism 31 has a structure that swings freely, and the six groovers 32 sink into the rice field by their own weight by their weights. However, a stopper mechanism 34 that regulates the lower limit of the sink is provided. . That is, the long nut 37 engaged with the front pivot pin 35 of the upper link 31a through the long hole 36 and the pin 38 rotatably supported on the lower link 31b around the horizontal axis are fitted into the double nut. Bolt 3
9 to form a stopper mechanism 34,
The lower limit position of the groove generator 32, that is, the seeding depth can be adjusted by the double nut operation. The driving of the seed unreeling mechanism 25 is performed by the first drive arm 2.
A second drive arm 42 interlockingly connected to a one-way clutch 41 for driving the push / pull rod 26 pivotally supported at one end to the drive shaft 40 of the seed unreeling mechanism 25 in only one direction.
The force is transmitted by changing the push-pull force into rotational force. In addition, the direct sowing device 11 includes a support bracket 27.
Bolting and releasing, and pushing and pulling rod 26
By being attached to and detached from the first drive arm 24, it is detachable from the planting transmission case 13.

Another Embodiment Hereinafter, another embodiment will be described with reference to FIG. 5 and FIG. The description of the same structure as that of the above embodiment will be omitted, and the same reference numerals will be used. As shown in FIG. 5 and FIG.
Is supported by a support bracket 27, which is bolted to the rear end of each planting transmission case 13, via a support frame 28, and is provided at a lower end of a flow-down guide hose 30 for flowing down seeds. At the rear end of each of the grounding floats 16, 16, 16, connecting members 45, 45, 4 are attached.
5 are connected. With this configuration, the groove depth for direct sowing is set according to the fertilization depth adjustment of the fertilizer application device 9.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the structure shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is an overall side view showing a direct sowing machine.

FIG. 2 is a side view showing a direct sowing device, a fertilizing device, and the like.

FIG. 3 is a vertical sectional side view showing a groove generator of a direct sowing apparatus and a lifting mechanism thereof.

FIG. 4 is a plan view showing the rear part of the direct sowing machine.

FIG. 5 is a side view showing a direct sowing device, a fertilizing device, and the like according to another embodiment.

FIG. 6 is a plan view showing a rear part of a direct sowing machine according to another embodiment.

FIG. 7 is a plan view showing a conventional direct sowing machine.

[Explanation of symbols]

3 Airframe 8 Seedling planting device 9 Fertilizer application device 11 Direct sowing device 15 Planting mechanism 18 Fertilizer feeding mechanism 21 Push / pull rod 24 First drive arm 25 Seed paddy feeding mechanism 26 Push / pull rod 42 Second drive arm

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-5-7411 (JP, A) JP-A-7-67426 (JP, A) JP-A 62-172308 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) A01C ^7/ 00-7/20

Claims (1)

(57) [Claims] 1. A fertilizing device (9) is arranged behind a seedling planting device (8) provided at a rear portion of a body (3), and a direct sowing device (11) is arranged behind the fertilizing device (9). And a first drive for driving a fertilizer feeding mechanism (18) of the fertilizer application device (9) .
Providing a first drive arm (24) for the gear mechanism;
The first drive arm (24) and the planting mechanism (15) of the seedling planting device (8) are interlocked and connected via a push-pull rod (21), and the direct sowing device (11) is fed with seeds.
Second drive for the second gear mechanism driving the mechanism (25)
An arm (42) is provided, which is in front of the first drive arm (24).
Pushing and pulling rod (26) with the second drive arm (42 )
Direct sowing machine linked via