JPS646646Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a submerged soil seeding machine that directly sows rice seeds, etc. in paddy fields, etc.

A flooded soil seeding machine has been proposed, which is equipped with a sowing unit having a tank for storing rice seeds, etc. and a sowing drive mechanism at the rear of the traveling body, and directly sows rice seeds, etc. into paddy fields etc. while traveling. Due to the nature of these seeding machines running on soft rice fields, the running body of most of them has a structure similar to the running part of a rice transplanter, so the mounting of the sowing part is difficult from the viewpoint of machine balance and space. There are various problems in terms of structure.

For example, if a mounting structure is adopted in which a straight rod-shaped support frame is placed at the bottom of the tank and the tank is fastened to a bracket that extends upward from the support frame, a long support is placed near the seeding port provided at the bottom of the tank. Since the frame is interposed, the space around the seeding port is reduced, making it difficult to remove the remaining paddy from the bottom of the tank, and mud that jumps up from the rice field while driving is deposited on the support frame, etc. Also, since the long support frame for heavy objects is located near the rear of the aircraft, the front-to-back balance of the aircraft becomes poor, which promotes the head sagging of the entire aircraft, causing the rear part of the float to tend to sink. The seeding depth becomes unstable.

Therefore, in the present invention, a gate-shaped support frame is attached to the traveling machine body at a position close to the rear of the wheels and perpendicular to the direction of movement of the machine body, and a seeding section consisting of a tank and a seeding drive mechanism is attached to the support frame. The above-mentioned problems are solved by connecting and fixing the support frame, and by suspending floats for sliding on the rice field at the bottom of both ends of the support frame.

To explain the configuration of the present invention with reference to an embodiment shown in the drawings, FIGS. 1 and 2 are overall structural diagrams of a submerged soil seeding machine, and this seeding machine has an engine installed at the front of a traveling body A. Wheels 2 and 2' are supported on both left and right sides of the transmission case in the center for vertical movement via swing chain cases 3 and 3', and seeds, etc. are stored behind the wheels 2 and 2'. A sowing unit 6 consisting of a tank 4 and a sowing drive mechanism 5 etc. which are interlocked and connected from the transmission case is installed, and a steering handle 7 is extended behind the sowing unit 6, and a rice field slider is installed in the lower central part of the machine. There are center floats 8 and side floats 8 on both sides of the center float.
a and 8b are provided. In the lower ground contact part of the seeding unit 6, groove cutting pieces 9, soil plates 10, and soil covering plates 11 are arranged for each seeding row (four rows in this embodiment) corresponding to the seeding opening 4a below the tank 4, respectively. As the machine moves, the seed rice, etc. stored in the tank 4 are sequentially fed out in fixed amounts by the seeding drive mechanism 5 and fall from the seeding port 4a into the trench in the soil formed by the trenching piece 9. After that, the soil plate 10 and the soil cover plate 11
They are gradually covered with soil and sown directly.

By the way, the mounting structure of the seeding section 6 and the like to the machine body is as follows.

That is, reference numeral 12 denotes a support frame formed into a gate shape by bending both ends of a steel pipe. The intermediate portions are fixed to the transmission case 13 via bolts 14, and the support frame 12
On the other hand, the front plate 4'a of the tank 4, which is provided with two left and right feeding parts, is connected and fixed by bolts 15 at approximately the middle position in the vertical direction.

Also, the vertical portions 12a, 1 at both ends of the support frame 12
Side floats 8a and 8b are suspended from the lower part of 2b via links 16, and markers 17 are also attached to vertical portions 12a and 12b of support frame 12 so as to be able to rise and fall.

Due to the mounting structure of the seeding part 6, etc., as shown in Fig. 3, there is no tank support member etc. interposed below the tank 4, and a relatively wide space a is maintained in the vicinity of the seeding port 4a. This makes it easy to take out the remaining paddy from the bottom of the tank after sowing, and also prevents mud from accumulating. The portions 12a, 12b are located so as to protect the tank 4 from obstacles.

Furthermore, the long support frame 12 is relatively heavy.
are arranged close to the rear of the wheels 2 and 2', so that the balance of the aircraft is well maintained without being biased toward the rear, and the side floats 8a and 8b extend outward from the aircraft. Therefore, there are many opportunities to come into contact with obstacles, and the abnormal load is supported by the gate-shaped and highly rigid support frame 12, and the load applied to the support frame 12 is transferred to the horizontal part of the support frame 12 and the case on the side of the tank. Since it is dispersed in the fastening section, the thickness of the transmission case can also be made thinner.

FIG. 4 shows an example of the drive mechanism 5 of the feeding section, in which the power transmitted to the input shaft 18 in the transmission case 13 extending from the previous mission case is transmitted to the square shaft 19 and the engaging pin. 20, a clutch boss 21 that engages and disengages from the engagement pin 20, a constantly engaged sliding portion 2;
2 to the feeding roller 23 which is rotatably supported in the tank 4, and the feeding roller 2
By the rotation of the lever 24, a predetermined amount of rice seed in the tank 4 is fed out and falls from the seeding port 4a into the trench on the rice field.
5 to connect and disconnect the clutch boss 21 and the engagement pin 20, and by rotating the adjustment knob 27 loosely fitted to the roller shaft 26, the movable body 28 screwed into the knob 27 can be adjusted. The width of the paddy feed hole 29 can be adjusted by moving it forward or backward, thereby making it possible to freely change the amount of sowing per plant. 30 and 31 are springs.
In the figure, 32 is a shutter provided at the seeding port 5a.

Note that the specific shape of the support frame 12 is not limited to that shown in FIG. 3, and may be, for example, as shown in FIGS. 5A, B, and C.

As mentioned above, the present invention has a gate-shaped support frame attached to the traveling aircraft at a position close to the rear of the wheels and perpendicular to the direction of movement of the aircraft, and a tank and a seeding drive mechanism are mounted on the support frame. In addition to connecting and fixing the sowing section, floats for sliding on the rice field are suspended from the bottom of both ends of the support frame, so there are no obstacles such as tank support members underneath the tank, and a relatively wide space can be created. Since it is maintained in the same state as it is, it is possible to easily take out the remaining paddy etc. from the bottom of the tank, and problems such as mud adhering and accumulating in the bottom of the tank are eliminated. In addition, the relatively heavy and long support frame is placed close to the rear of the wheels, so the front-to-back balance of the aircraft is well maintained without shifting backwards, which reduces the head drop of the aircraft while driving. The sinking of the rear part of the float is also prevented as much as possible, and this prevents variations in the seeding depth, making it possible to stabilize the growth after seeding. Furthermore, the vertical load of the float is supported by a highly rigid support frame, and since the support structure has a vertical part of the support frame located outside the tank, it has a simple structure that protects the tank etc. from obstacles. However, it has extremely useful practical effects.

[Brief explanation of the drawing]

Figure 1 is an overall side view of a submerged soil seeding machine equipped with the present invention, Figure 2 is an overall plan view of the same as above, Figure 3 is a front view of the main parts, and Figure 4 is a longitudinal sectional front view of the seeding drive mechanism. , FIGS. 5A, 5B and 5C are front views showing other embodiments of the support frame. In the figure, A is the traveling machine body, 2, 2' are wheels, 4 is a tank, 5 is a seeding drive mechanism, 6 is a seeding section, 8a, 8
b is float.

Claims (1)

[Scope of utility model registration request] A gate-shaped support frame is attached to the traveling machine body at a position close to the rear of the wheels and perpendicular to the traveling direction of the machine body, and a sowing unit consisting of a tank and a sowing drive mechanism is connected and fixed to the support frame, This submerged soil seeding machine is characterized by having floats for sliding on the rice field suspended from the bottom of both ends of the support frame.