JPS6338163B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention relates to a hopper having a built-in feed-out roll that continuously delivers a certain amount of seeds (seed rice), a sowing chute connected to the hopper, and a sowing chute for sowing. The present invention relates to a flooded direct sowing machine that is equipped with a soil leveling body that forms grooves in the rice field and sows seeds directly into a flooded field after puddling.

``Prior Art'' Conventionally, there has been a walking type flooded direct seeding machine as shown in Japanese Patent Application Laid-open No. 103807/1983.

"Problems to be Solved by the Invention" The conventional technology described above has a structure in which a single hopper is attached to the machine and only the sowing and covering device for multiple rows is raised and lowered from the machine. If the hopper has a small capacity, the feeding capacity cannot be easily improved, and if the hopper has a small capacity, the frequency of seed feeding will increase, which tends to lengthen the interruption time of direct sowing in water. Although direct sowing work can be performed continuously, there is a problem that the balance of the machine tends to become unstable due to changes in the amount of seeds in the hopper, and it is not easy to use large-scale multi-row machines such as riding models.
In particular, in a structure in which the hopper is attached to the machine side, for example, even if the hopper is installed on the running part of a riding rice transplanter, the distance from the hopper to the sowing surface becomes long.
There were problems such as difficulty in obtaining an appropriate seed feeding operation.

"Means for Solving the Problems" However, the present invention provides a flooded direct sowing machine in which a seeding section including a hopper for storing seeds and a ground leveling body is installed in a running section via a three-point linkage mechanism. A seeding frame that supports the seeding frame is provided below the hopper, the ground leveling body is arranged below the seeding frame, and the three-point link mechanism is connected to a support member that supports the seeding frame. It is.

``Function'' Therefore, since the hopper is supported on the lower side by the seeding frame, a hopper structure of any capacity can be easily constructed, and since the soil leveling body is disposed below the seeding frame, the distance from the hopper to the seeding surface is reduced. The distance is short, and appropriate seed feeding operation can be easily obtained. Also, since the three-point linkage mechanism is connected to the support member that supports the sowing frame, the sowing unit can be moved forward and backward and laterally when supported upward by the three-point linkage mechanism. It is easy to set the balance and can stably support the raising of the seeding section.

``Example'' An example of the present invention will be described in detail below based on the drawings. Fig. 1 is a schematic side view of the entire structure, and Fig. 2 is a plan view of the same.
is a connecting frame that connects the front and rear vehicle bodies 2 and 3 so as to be bendable only in the horizontal direction via a pivot shaft 6;
7 and 8 are front and rear wheels for paddy fields that are attached to the left and right sides of the front and rear vehicle bodies 2 and 3 via swing cases 9 and 10;
12 is a driver's seat attached to the upper rear part of the front vehicle body 2 via the support column 11; 13 is a steering handle provided above the front part of the front vehicle body 2; 14 is a rear vehicle body. This is the engine installed in the 3rd model.

In addition, 15 in the figure is an 8-row raking seeding unit that is installed in the front part of the front vehicle body 2 via a three-point linkage mechanism 16 so as to be able to be raised and lowered, and 17 is a seeding unit that has been germinated and is coated with a water-soluble oxygen generating agent. Hopper for storing seed rice,
18 is connected to the hopper 1 via the seeding frame 19.
7 are fixedly supported float-type ground leveling bodies; 20 are left and right bumpers fixed to the frame 19; 21;
22, 23, 24 are pipe frames that are supporting members that connect and fix the left and right frames 19.

As described above, in the flooded direct sowing machine in which the seeding section 15 including the hopper 17 for storing seeds and the ground leveling body 18 is installed on the traveling section 1 via the three-point linkage mechanism 16, the seeding frame 19 that supports the hopper 17 is provided. is provided below the hopper 17, and the ground leveling body 18 is provided below the seeding frame 19.
The three-point link mechanism 16 is connected to pipe frames 22, 23, and 24 that support the seeding frame 19.

As shown in FIG. 3, a seed delivery roll 25 that is rotationally driven via a flexible wire (not shown) is built into the seed reservoir 26 of the hopper 17, and seed delivery buckets 27 and 28 for two rows are attached to the roll 25. An outflow regulating shutter 30 is provided, which is formed in parallel on the outer circumferential surface of the container and which adjusts the amount of seeds flowing down into the reservoir section 26 via a lever 29. Further, a forked seeding chute 31 is provided, the upper end of which communicates with the reservoir section 26, and the lower end of the forked shape for branching and dropping two rows of seeds. Scoop up the seed rice,
The buckets 27 and 28 are formed so that the seed rice is thrown into the chute 31, and the lower surface of the soil leveling body 18 is provided with groove-forming protrusions 32 and a filler plate 33,
The seed rice is dropped from the chute 31 into a groove opened by the protrusion 32, and then the groove is closed by the abutting plate 33.

Further, the three-point link mechanism 16 includes a pair of lower links 34, 34 and a top link 35,
The links 34 and 35 have approximately the same length and are installed approximately parallel to each other. One end of the lower link 34 is pivotally connected to the lower front end of the front vehicle body 2 via a ball joint 36. The other end is connected to the rear end of the pipe frame 23 via a ball joint 37, and one end of a top link 35 is pivotally connected to the upper front end of the front vehicle body 2 via a ball joint 38. is connected to the upper end of the pipe frame 24 via a ball joint 39. In addition, a pair of anti-lateral vibration springs 40, 40 are stretched between the upper front end of the front body 2 and the rear end of the pipe frame 23, and the tips of the lift arms 41, 41 protruding forward of the front body 2 are connected to the connecting rod 42. , 42 to the lower link 3
4, 34 Connect in the middle. The long hole 44 of the connecting rod 42 is engaged with the planting pin 43 on the side of the link 34, and a spring 45 is stretched parallel to the connecting rod 42 between the lower link 34 and the lift arm 41, and the hopper 17 is The soil leveling body 18 is formed to be in contact with the field at a substantially constant pressure under a standard load condition containing seed rice, and the soil leveling pressure, that is, the ground load of the soil leveling body 18 and the tension spring force of the spring 45 are balanced.
A hydraulic cylinder 46 is attached to the front vehicle body 2, and the piston rod 47 of the cylinder 46 is connected to the lift arms 41, 41, so that the sowing unit 15 is supported so as to be able to move up and down in a constant horizontal position and to be able to swing horizontally as a whole. be.

The present embodiment is configured as described above, and the seed rice is directly sown in a flooded field after puddling.The regulation shutter 30 is opened as appropriate to allow the seed rice to flow down into the reservoir 26, and the feed roll 25 is rotated. The buckets 27 and 28 of the rolls 25 scoop up the seed rice in the reservoir 26, and the seed rice is transferred to the chute 31.
The seed rice is introduced into the upper end of the chute 31, and is dropped from the forked lower end of the chute 31 into a groove in the rice field formed by the protrusion 32, and the groove is closed by a soil gathering board 33 to perform cultivation. .

Furthermore, the lift arm 4 is moved by the cylinder 46.
1 is raised and lowered to raise and lower the sowing unit 15 via a lower link 34 and a top link 35, and the hopper 17 and the ground leveling body 18 are maintained approximately horizontally by the parallel link action of each link 34 and 35. The sowing section 15 is raised and lowered in the same condition to keep the sowing depth approximately constant even if the depth of the tiller changes, and to balance the ground pressure of the left and right soil leveling bodies 18 even if the riding section 1 is tilted, for example. The entire field oscillates horizontally, and the seeding section 15 is supported substantially horizontally with respect to the rice field surface, so that the seeding depth on the left and right sides is kept substantially constant. In addition, since the front and rear car bodies 2 and 3 are bent via the rotation fulcrum shaft 6, the turning radius is extremely small, so the sowing strips are bent by the wheels 7 and 8.
It will not be disturbed by

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a water-filled system in which the seeding section 15, which includes a hopper 17 for storing seeds and a ground leveling body 18, is installed in the traveling section 1 via a three-point linkage mechanism 16. In a direct sowing machine, the sowing frame 19 supporting the hopper 17 is attached to the hopper 1.
7 and the sowing frame 1
The three-point link mechanism 16 is connected to support members 22, 23, and 24 that support the sowing frame 19, and the sowing frame 19 moves the hopper 17 downward. Since the hopper 17 is supported, the structure of the hopper 17 of any capacity can be easily configured, and since the ground leveling body 18 is disposed below the sowing frame 19, the distance from the hopper 17 to the sowing surface is short, and proper seed feeding operation can be easily performed. You can also get a seeding frame 19
The three-point link mechanism 1 is attached to the support members 22 and 23 that support the
6 are connected, it is easy to set the horizontal balance of the sowing section 15 when it is supported upward by the three-point linkage mechanism 16, and the upward support of the sowing section 15 can be stably performed. .

[Brief explanation of drawings]

FIG. 1 is an overall side view showing one embodiment of the present invention, FIG. 2 is a plan view of the same, and FIG. 3 is a side view of essential parts. DESCRIPTION OF SYMBOLS 1... Traveling part, 15... Seeding part, 16... Three-point link mechanism, 17... Hopper, 18... Earth leveling body, 19... Seeding frame, 22, 23, 24...
...Pipe frame (supporting member).

Claims (1)

[Claims] 1 Hopper 17 for storing seeds and ground leveling body 1
In the flooded direct sowing machine in which a sowing section 15 having a sowing section 8 is installed on the traveling section 1 via a three-point linkage mechanism 16, a sowing frame 19 supporting the hopper 17 is provided below the hopper 17, and the sowing frame The ground leveling body 18 is disposed below the seeding frame 19, and support members 22, 2 that support the seeding frame 19
3 and 24 are connected to the three-point linkage mechanism 16.