JPS6329963B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a flooded direct sowing machine that continuously sows a certain amount of seeds onto a field.

"Prior Art" Conventionally, as shown in Japanese Patent Publication No. 50-30523, there was a technology in which a feeding device was provided below the hopper into which the seeds were placed, and a sowing chute was provided below the feeding device, and the seeds were dropped one after another for sowing. .

"Problems to be Solved by the Invention" In the prior art, the sowing chute was installed approximately vertically below the feeding device, so in the multi-row sowing structure, the hopper and feeding device were independent for each row. However, there were structural and functional problems such as the simplification of the structure of the hopper and the feeding device, and the inability to easily synchronize the timing of seeds falling in each row.

In addition, as shown in Japanese Utility Model Publication No. 48-31471, there was a technique for taking out two rows of seeds from a single seed dispensing section of a dispensing device, but a multi-row sowing chute was connected to the adjacent left and right dispensing devices. Because I was letting it happen,
There were problems such as the falling time of the seeds in the left and right sowing chutes in a set of two rows could not be easily matched, and the seed dropping operations for the two rows could not be easily synchronously adjusted.

Furthermore, as shown in Japanese Utility Model Application No. 52-134520, there was a technique in which left and right sowing chute of the same length were connected to a single seed dispensing part of a dispensing device, but there was a gap between the seed dispensing part and the sowing chute. A chevron-shaped diffuser plate was installed, and two rows of seeds falling from the same place were dispersed in each row by the diffuser plate, so as the aircraft tilted left and right and rolled, many seeds were scattered on the downhill side. Seeds fall, and especially because the seed distribution angle of the diffusion plate is obtuse, the rolling of the machine causes two rows of seeds to fall on one side of a set of two rows, causing defects on the other. Even when the number of seeds differs from the set number by just one grain, as in the case of rice, there have been problems such as it is not easy to improve the handling operability of the sowing operation and the sowing function, which has a great negative effect on later growth.

``Means for Solving the Problems'' However, the present invention provides a submerged direct sowing machine in which a feeding device is provided below a hopper into which seeds are placed, and a seeding chute is provided below the feeding device, in which the feeding device is installed on each row. A seed dispensing section for dispensing seeds is provided,
The lower ends of the sowing chute are extended symmetrically in a V-shape when viewed from the rear, and the seed travel time from the upper end to the left and right lower ends of the sowing chute is approximately the same. That is.

``Function'' Therefore, the hopper and the feeding device can be arranged in two rows, which makes it easy to downsize the feeding device and reduce the manufacturing cost. Since the travel time within the sowing chute is approximately equal, it is easy to synchronize the seed falling operations for the two rows, and it is easy to adjust the distance between the front and rear sowing positions at the lower left and right ends of the sowing chute, as well as the number of fallen seeds on the left and right sides. can be matched to
In addition, handling and operability can be easily improved even in fields where rolling is easy, and the seed dispensing structure can be simplified and the sowing function can be improved compared to the conventional method.

``Example'' An example of the present invention will be described in detail below based on the drawings. Fig. 1 is an overall side view of a direct sowing machine for paddy rice, and Fig. 2 is a plan view of the same. It is a continuous transmission case,
A drive case 5 for a feeding device, which will be described later, is integrally connected to the rear of the mission case 3 via a transmission case 4.

A pair of swing cases 6, 6 are mounted on the left and right outer sides of the transmission case 3, and a pair of left and right paddy wheels 8, 8, which are running wheels, are mounted on the outer sides of the swing cases 6, 6 via axles 7, 7. It is mounted on an axis so that it can rotate freely.

In addition, a shaped frame 9 is connected to the rear of the drive case 5, and a steering handle 10 is provided to extend rearwardly at the rear of the shaped frame 9, and can be swung back and forth via a fulcrum pin 11 serving as a support point. Possible direct sowing device 1
2 are connected.

The direct sowing device 12 has three sets of sowing devices 13a, 1
3b, 13c, each seeding device 1
3a, 13b, 13c are storage hoppers 14, 14, 1 for storing seed paddy, which are hoppers for storing seeds.
4, a seed pumping out device 15, 15, 15 (see FIG. 5) installed in the lower part of the storage hopper 14, 14, 14, and the storage hopper 14, 14, 1
The center float 16 is a ground leveling body that supports 4.
a and side floats 16b, 16c, each seeding frame 17a,
The hoppers 14, 1 via 17b, 17c
The center float 16a, the side floats 16b, 16c and the storage hoppers 14, 14, 14 are combined to form three sets of seeding devices 13a, 13b, 13c. A connecting frame 18 connects the central seeding frame 17a and the left and right seeding frames 17b, 17c.
The three sets of seeding devices 13 are connected and supported by 18.
A, 13b, 13c are integrally connected to form a direct seeding device 12.
It consists of

In addition, as shown in Fig. 3, the central seeding frame 1
A bracket 19 is fixed on the front surface of the seeding frame 7a, and the bracket 19 is supported and connected to the seeding frame 9 via a pin 11, and the left and right seeding frames 17 are connected to each other.
b, 17c are provided with left and right streak markers 20, 21 as shown in FIG.

Furthermore, the distal end of the center float 16a that fixes the base end of the central seeding frame 17a is supported and connected to the transmission case 4 via a buffer member 22, while the central seeding frame 17a, as shown in FIG.
A spring 23 is stretched between the base end of the shape frame 9 and the base end of the shape frame 9. and the locking piece 25 and spring 23 on the frame 9 side.
An adjusting screw 26 is interposed between the two.

Further, as shown in FIGS. 4 and 5, a pair of groove forming protrusions 27, 27 forming two grooves are provided at the bottom of each of the center float 16a and side floats 16b, 16c. Strip 27, 2
7. Forming seeding grooves 28, 28 at the rear of the ends, and floats 16a, 1 located inside the seeding grooves 28, 28.
Cultivating soil plates 29, 29 are fixed to the bottom surfaces of 6b, 16c.

By the way, the feeding device 15 is provided in a storage chamber 30 at the bottom of the storage hopper 14, and a seed feeding roll 32 is mounted in the storage chamber 30 via a rotating shaft 31, and seed feeding rolls 32 are arranged in parallel on the peripheral surface of the feeding roll 32. Seed discharge buckets 33a..., 33b... are seed dispensing parts for two rows.
is provided, and the seeds stored in the storage chamber 30 are transferred to buckets 33a, 3 by rotation of the feed roll 32.
3b... is constructed so that the seeds are pumped out and delivered to each row.

Further, a two-row seeding chute 35 formed in a forked shape is removably attached to the reservoir chamber 30 at the lower part of the storage hopper 14 through a discharge port 34, and the lower end of the forked branch of the chute 35 is connected to the center float. 16a and the front ends of the seeding grooves 28, 28 of the side floats 16b, 16c.

Further, above the storage chamber 30 of the storage hopper 14, there is a main shutter 36 and a flow rate adjusting plate 3.
7 is provided, and levers 38 and 39 for operating the shutter 36 and adjustment plate 37 are installed in the storage hopper 14.
It protrudes outward.

By the way, as shown in FIG.
Support point that is the pitching fulcrum of , that is, fulcrum pin 1
1 is located in front of the center of gravity A of the direct seeding device 12 with an interval t provided therebetween.

In addition, in the figure, 40 is a flexible wire that is stretched between the drive case 5 and each seeding frame 17a, 17b, 17c and transmits the engine output to the feed roll 32, 41 is the flexible wire that transmits the drive of 40. A clutch lever 42 is connected to the storage hopper 1 of the rotating shaft 31 and is operated to connect and disconnect as appropriate.
4. A manual operation handle that extends integrally to the outer protruding end;
43 is a discharge port 34 of the storage chamber 30 of the storage hopper 14
This is a partition plate interposed between the seeding chute 35 and the seeding chute 35.

The present embodiment is constructed as described above, and each hopper 14 is filled with seed rice, that is, seeds made by coating sprouting rice with a mixture of lime peroxide and calcined gypsum, and the machine is placed in a flooded field after puddling. While running, seeds in the storage hopper 14 are directly sown in a fixed amount, one plant at a time, and the seed rice stored in the storage chamber 30 at the bottom of the storage hopper 14 is pumped up in a fixed amount by the feeding device 15. It is discharged from the discharge port 34 to the seeding chute 35, and the seeding chute 3
The rice seeds released into the sowing chute 35 are directly sown every two rows from the fork at the lower end of the sowing chute 35. During this direct sowing work, center float 16a and side float 1
The protrusions 27, 27 of 6b, 16c form grooves in the field as the machine travels, and the center float 16a and side floats 16b, 1
The seeding grooves 28, 28 of 6c move, and the seeding grooves 28, 28 move.
The rice seed falling from the sowing chute 35 is directly sown into the trench from the front end of the trench 28. It is overturned by.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a submerged direct sowing machine in which a feeding device 15 is provided below a hopper 14 into which seeds are placed, and a seeding chute 35 is provided below the feeding device 15. 15 is a seed feeding section 33a, 3 that dispenses seeds for each row.
3b, and extend the lower end side of the sowing chute 35 symmetrically in a V-shape when viewed from the rear, so that the seed travel time from the upper end of the sowing chute 35 to the left and right lower ends is approximately the same. The hopper 14 and the feeding device 1
5 can be aggregated into every two rows, making it easy to downsize the feeding device 15 and reduce manufacturing costs, and to move seeds dropped from the lower left and right ends of the sowing chute 35 within the sowing chute 35. Since the time is approximately equal, the seed falling operations for the two rows can be easily synchronously adjusted, and the front and rear spacing of the sowing positions on the left and right lower end sides of the sowing chute 35 and the number of falling seeds on the left and right sides can be easily matched. In addition, it can easily improve handling and operability even in fields where rolling is easy, and has the effect of simplifying the seed feeding structure and improving the sowing function compared to conventional methods. be.

[Brief explanation of the drawing]

Fig. 1 is an overall side view of a direct seeding machine showing an embodiment of the present invention, Fig. 2 is a plan view of the same, Fig. 3 is an enlarged side view of the main parts, Fig. 4 is an enlarged rear view of the main parts, and Fig. 4 is an enlarged rear view of the main parts. FIG. 5 is a partially enlarged explanatory diagram of the main part. 14... Storage hopper (hopper), 15...
Feeding device, 33a, 33b... Seed discharge bucket (seed feeding portion), 35... Seeding chute.

Claims (1)

[Claims] 1 Hopper 14 into which seeds are placed downwardly feeding device 1
5 and a seeding chute 35 below the feeding device 15, the feeding device 15 has a seed feeding section 33 that feeds out seeds for each row.
a, 33b are provided, and the lower end side of the sowing chute 35 is extended symmetrically in a V-shape when viewed from the rear, and the seed travel time from the upper end of the sowing chute 35 to the left and right lower ends is approximately the same. A flooded direct sowing machine characterized by being formed so as to.