JPS645452Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention includes, for example, a hopper with a built-in payout 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 seeding machine that is equipped with a soil leveling body that forms grooves in the rice field and sows seeds directly into flooded fields after puddling.

``Prior Art'' 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.

``Problem that the invention seeks to solve'' However, in the above-mentioned conventional technology, the operator judges the soil hardness and manually changes the soil pushing pressure. It was necessary to change the soil pushing pressure of the machine, which caused problems such as the difficulty in improving handling operability and work efficiency.

"Means for Solving the Problem" However, the present invention includes a soil plate for cultivating the sown area and a hardness sensor for detecting soil hardness, and also measures the soil plate based on the hardness detected by the sensor. A changing member that automatically changes the soil pushing pressure is configured to change the soil pushing pressure of the soil plate in accordance with changes in soil hardness, and an adjusting member that changes the relative position of the soil plate and the hardness sensor. It is characterized by the fact that it has been provided.

``Function'' Therefore, since the soil hardness is detected and the soil pressing pressure of the soil plate is automatically changed in proportion to this, even if the soil hardness changes continuously, the soil pressure of the soil plate is adjusted accordingly. It is possible to maintain appropriate soil pushing pressure, eliminate problems such as interrupting seeding work to adjust the soil pushing pressure of the soil plate, and it is also possible to easily increase the traveling speed during seeding work, which is better than conventional methods. In comparison, it is easy to improve handling operability and work efficiency, and by changing the relative position of the soil plate and hardness sensor by operating the adjustment member, it is possible to create the soil that is most suitable for the soil quality (viscosity, etc.) of the sowing surface. The effect and hardness detection operation can be easily obtained, and the hardness detection accuracy of the seeding surface and the soil plate control function can be easily improved.

"Embodiments" Examples of the present invention will be described below in detail 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 rectangular 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. 17 is a swinging fulcrum shaft that is attached to the square frame 9 so as to be rotatable only forward and backward; 17 is a running trajectory forming streak marker that is movably provided on a bracket 18 fixed to the outside of the left and right seeding frames 11; 19 is a Floats 24 and 25, which are ground leveling bodies fixed to the lower ends of the frames 10 and 11 and formed with 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 formed in the seeding grooves. 22, 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 up the front end side of each of the floats 19 about the fulcrum shaft 15 and supports the rear end side of each float 19; 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; 31 is a seed storage hopper that is supported rotatably in the reservoir 32 of the hopper 30 via a rotating shaft 33, and is used 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 via 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 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 for intermittent driving force of the wire 39; Clutch lever 41 is the hopper 30
A main shutter whose bottom part can be opened and closed via a shutter lever 42, 43 an outflow regulating shutter which adjusts the amount of seeds flowing down into the reservoir 32 via an adjustment lever 44, and 45 which 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 resistance plate 51 is connected to the link 56 of the rotary shaft 48 via a rod 55 which is an extendable and retractable changing member having a turnbuckle 54 which is an adjustment member for changing the relative position of the soil plate 50 and the resistance plate 51, Float 1 to be grounded on the seeding surface
The resistance plate 51 is placed close to the swinging fulcrum shaft 15, which is the fulcrum of 9, in the front and back direction, and a spring 57 is attached 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 hard, the resistance plate 51 sinks due to the force of the spring 57, and in conjunction with this, the soil plate 50 is raised to weaken the ground contact force of the soil plate 50. When the soil is relatively hard, the resistance plate 51 rises against the force of the spring 57, and in conjunction with this, the soil plate 50 sinks to strengthen the ground contact force of the soil plate 50, and the resistance plate between each float 19... 51,
51 facing the rear of the paddy wheels 6, 6, and the ruts 58 of the wheels 6, 6 are formed so as to be leveled by the resistance plates 51, 51.

This example is constructed as described above, and seeds are directly sown in a flooded field after puddling.The germinated seeds are 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.

"Effects of the Invention" As is clear from the above embodiments, the present invention includes a soil plate 50 that applies soil to a seeded area, a hardness sensor 51 that detects soil hardness, and based on the hardness detection of the sensor 51. It is equipped with a changing member 55 that automatically changes the soil pushing pressure of the cultivating soil plate 50, and is configured so that the soil pushing pressure of the cultivating soil plate 50 changes according to changes in soil hardness.
The system is equipped with an adjustment member 54 that changes the relative position of the soil hardness sensor 51 and the hardness sensor 51, which detects the soil hardness and automatically changes the soil pushing pressure of the soil plate 50 in proportion to the soil hardness. Even if the soil pressure changes continuously, the soil pushing pressure of the soil plate 50 can be appropriately maintained by following this change, and it is possible to eliminate problems such as interrupting the sowing operation to adjust the soil pushing pressure of the soil plate 50. The traveling speed during sowing work can be easily increased, and handling operability and work efficiency can be easily improved compared to the conventional method.Moreover, by operating the adjusting member 54, the soil plate 50 can be adjusted. By changing the relative position of the hardness sensor 51, it is possible to easily obtain the soil cultivation and hardness detection operation that is most suitable for the soil quality (viscosity, etc.) of the seeding surface, which improves the hardness detection accuracy of the seeding surface and the soil plate 50 control function. This has practical effects such as being able to easily improve the following.

[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...Soil plate, 51...Resistance plate (hardness sensor), 54...Turnbuckle (adjustment member).

Claims (1)

[Scope of utility model registration request] It is equipped with a soil plate 50 for cultivating the seeded area, and a hardness sensor 51 for detecting soil hardness.
Based on the hardness detected by the sensor 51, the soil plate 50
A changing member 55 that automatically changes the soil pressing pressure of
It is characterized in that it is configured so that the soil pushing pressure of the soil plate 50 changes in accordance with changes in soil hardness, and is provided with an adjustment member 54 that changes the relative position of the soil plate 50 and the hardness sensor 51. Seeding machine.