JPS6219135Y2 - - Google Patents

Description

[Detailed description of the invention] The invention includes, for example, a hopper that has a built-in payout roll that continuously delivers a certain amount of seeds (seed rice), a sowing chute that is connected to the hopper, and a groove for sowing that is formed in the rice field. This invention relates to a seeding machine that is equipped with a soil leveling body, etc., and is capable of directly sowing seeds into flooded fields after puddling. Conventionally, as shown in Japanese Utility Model Publication No. 38-20244, there has been a technique in which a soil plate is provided so that soil pushing pressure can be adjusted freely.

However, in the above-mentioned conventional technology, the operator judges the soil hardness and manually changes the soil pushing pressure, so it is necessary to stop this work during sowing work and change the soil pushing pressure of the soil plate. However, there were problems in that it was not easy to improve handling and operability and work efficiency.

However, the present invention includes a soil plate that applies soil to the seeded area and a hardness sensor that detects soil hardness, and also changes the soil pushing pressure of the soil plate automatically based on the hardness detected by the sensor. The present invention is characterized in that it includes a member and is configured so that the soil pushing pressure of the soil plate changes in accordance with changes in soil hardness.

Therefore, since the soil hardness is detected and the soil pushing pressure of the soil plate is automatically changed in proportion to this, even if the soil hardness changes continuously, the soil pushing pressure of the soil plate is adjusted accordingly. This method eliminates problems such as interrupting the sowing operation to adjust the soil pushing pressure of the soil plate, and it also allows for easy operation of faster traveling speeds during the sowing operation, making it easier to handle than before. This makes it easy to improve operability and work efficiency.

Embodiments of the present invention will be described in detail below based on the drawings.

Fig. 1 is a side view of a walk-behind seed sowing machine for six rows, that is, a flooded direct sowing machine, in which 1 is an engine, 2 is a transmission case fixed to the rear of the engine 1, and 3
5 is a front float that covers the lower surface of the engine 1; and 6 is installed on both sides of the transmission case 2 via swing cases 7. A pair of left and right paddy wheels 8 are steering handles fixed to the drive case 3 via a shaped frame 9.

In addition, Fig. 2 is a side view of the main part, Fig. 3 is a rear view of the same, and Fig. 4 is a partially sectional side view.
Reference numerals 0, 11, and 11 denote seeding frames that are integrally fixed via horizontal shafts 13 and 14 that are removably connected by bolts 12, and 15 denotes a bracket 16 that fixes the central seeding frame 10 to the front surface thereof. A swinging fulcrum shaft is attached to the seeding frame 9 via the seeding frame 9 so as to be rotatable only in the front and rear directions, 17 is a running trajectory forming streak marker provided to be able to rise and fall on a bracket 18 fixed to the outside of the left and right seeding frames 11, and 19 is the above-mentioned Floats 24 and 25, which are ground leveling bodies fixed to the lower ends of the frames 10 and 11 and forming a pair of groove-forming protrusions 20 and 21 and seeding grooves 22 and 23, are fixed to the bottom surface of the float 19 and are fixed to the seeding grooves 22 and 25. ,23
Cultivating soil board facing this from the inside direction, 2
6 and 27 are swing links that connect and support the front end of the center float 19 to the bottom surface of the upper transmission case 4; 28 is a swing link that lifts the front end side of each of the floats 19 about the fulcrum shaft 15, and lifts the front end side of each float 19 to the rear end side; sowing frame 1 via adjustment bolt 29 to push down
30 is a seed storage hopper fixed to the upper end side of the seeding frames 10, 11, and 31 is a seed storage hopper that is pivotally supported in the reservoir 32 of the hopper 30 via a rotating shaft 33 to store seeds for two rows. A seed delivery roll 36 is formed by forming discharge buckets 34 and 35 in parallel on the outer peripheral surface, and a partition plate 37 is provided in the reservoir 32.
A bifurcated seeding chute whose upper end is connected through the rotary shaft 33 and whose lower end is branched to face the front end of each seeding groove 22, 23 and guide the seeds to fall;
39 is a flexible wire that is installed between the drive case 3 and the seeding frames 10 and 11 to rotationally drive the feeding roll 31; 40 is a flexible wire that cuts off the driving force of the wire 39; Clutch lever 41 is the hopper 30
A main shutter whose bottom part is opened and closed via a shutter lever 42; 43 is an outflow regulating shutter which adjusts the amount of seeds flowing down into the reservoir section 32 via an adjustment lever 44; 45 is a shutter that can be opened and closed on the upper surface of the hopper 30. It is a lid provided.

As shown in FIGS. 4 and 5, the rim portion at the rear end of the float 19 is expanded to form a support base 46, and the rotating shaft 48 is pivotally supported by a bearing 47 fixed to the support base 46. A soil plate 50, which is attached from above to the seeding groove 49 formed on the rice field by means of 20 and 21, is attached to the rotating shaft 48, and supported so that the soil plate 50 can be moved toward and away from the rice field. In addition, a resistance plate 51, which is a hardness sensor attached to the surface of the float 19 on the side, is swingably attached to the fulcrum shaft 52, and the fulcrum shaft 52 is supported by a bracket 53 fixed to the side rim of the float 19. The rotating shaft 4 is connected to the rotary shaft 4 through a rod 55 which is a telescopically adjustable changing member having a turnbuckle 54.
A resistance plate 51 is connected to the link 56 of No. 8, and a spring 57 is applied to the resistance plate 51 to press the resistance plate 51 to the rice field and detect the hardness of the rice field. For example, when the rice field is relatively soft, the spring 57 is pressed against the rice field. 5
The resistance plate 51 sinks due to the force 7, and in conjunction with this, the soil plate 50 rises, weakening the ground contact force of the soil plate 50. On the other hand, when the rice field is relatively hard, it resists against the force of the spring 57. The plate 51 is raised, and in conjunction with this, the soil plate 50 is lowered to strengthen the ground contact force of the soil plate 50, and the resistance plates 51, 51 between each float 19 are made to face the rear of the paddy wheels 6, 6. , the ruts 58 of the wheels 6, 6 are leveled by resistance plates 51, 51.

The present invention is constructed as described above, and involves direct sowing of seed rice into a flooded field after puddling.The germinated seed rice is coated in advance with a water-soluble oxygen generating agent mixed with lime peroxide and calcined gypsum. With the main shutter 41 closed, the seed rice is put into the hopper 30 and moved to the field after puddling. Thereafter, the main shutter 41 is opened, and the regulating shutter 43 is opened and closed appropriately to allow the seed rice to flow down into the reservoir 32.Then, each float 19 is lowered onto the rice field and pulled by the paddy wheel 6, and at the same time, the flexible wire 39 The feed roll 31 is rotationally driven through the
The paddy seeds in the reservoir 32 are scooped up by the buckets 34 and 35 of the rolls 31 and put into the upper end of the chute 36, and the rice is poured into the sowing groove 2 from the forked lower end of the chute 36.
The seed rice is dropped into the groove 49 of the rice field formed by the protrusions 20 and 21 through the grooves 2 and 23, and the groove 49 is closed by the soil retaining plates 24 and 25, and the soil in the groove 49 where the seed has been sown is removed. This is done using the soil plate 50, and the ruts 58 of the paddy wheels 6 are leveled by the resistance plates 51, 51, and the hardness of the rice field is detected by the resistance plate 51, and the soil plate 50 is moved up and down. The soil cultivation force of the soil cultivation plate 50 is increased or decreased according to the hardness of the field surface, and the most appropriate soil cultivation action can always be automatically obtained.

As is clear from the above embodiments, the present invention includes a soil plate 50 for cultivating soil in a seeded area, and a hardness sensor such as a resistance plate 51 for detecting soil hardness. It is equipped with a changing member such as a rod 55 that automatically changes the soil pressing pressure of the soil plate 50, and is configured to change the soil pressing pressure of the soil plate 50 according to changes in soil hardness, and detects soil hardness. However, since the soil pushing pressure of the soil plate 50 is automatically changed in proportion to this, even if the soil hardness changes continuously, it is possible to follow this and maintain the soil pushing pressure of the soil plate 50 appropriately.
It is possible to eliminate problems such as interrupting the seeding operation to adjust the soil pushing pressure of the soil plate 50, and it is also possible to easily increase the traveling speed during the seeding operation, making it easier to handle than before. This has practical effects such as being able to easily improve performance and work efficiency.

[Brief explanation of the drawing]

Fig. 1 is a side view of a submerged direct seeding machine showing one embodiment of the present invention, Fig. 2 is a side view of its main parts, Fig. 3 is a rear view of the same, Fig. 4 is an enlarged partial sectional view, and Fig. 5 The figure is a partially enlarged plan view. 50... Cultivating soil plate, 51... Resistance plate (hardness sensor).

Claims (1)

[Scope of utility model registration request] In addition to being equipped with a soil plate 50 for cultivating the seeded area and a hardness sensor 51 for detecting soil hardness,
Based on the hardness detection of the sensor 51, the soil plate 50
A changing member 55 that automatically changes the soil pushing pressure of
A seeding machine characterized in that the seeding machine is configured such that the soil pushing pressure of the soil plate 50 changes according to changes in soil hardness.