JPH0417601B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a direct seeding machine equipped with a hopper incorporating a feed roll for feeding out seeds, a chute connected to the hopper, a float for planting furrows, and the like.

"Prior Art" Conventionally, there have been direct sowing machines equipped with a soil leveling body for rice planting (for example, Japanese Patent Application Laid-Open No. 1983-30719), and rice transplanters that independently displace a plurality of soil leveling bodies vertically (for example, Japanese Patent Laid-Open No. 1983 -80310) was issued.

``Problems to be solved by the invention'' However, it is difficult to make trenches on the surface of the plowed mud in the field, and it is difficult to sow the seeds to a depth of about 2 centimeters or less to enable germination. In contrast, with the conventional technology, the ground pressure of the left and right soil leveling bodies becomes uneven due to the unevenness of the field plowing plate, and the support heights of the left and right sowing frames with respect to the sowing field surface are different, so the above-mentioned sowing process is difficult. It is difficult to obtain direct sowing work that suits the conditions, and there are problems such as uneven sowing accuracy and missing plants.
As shown in Publication No. 16016, there was a technique to keep the seeding depth appropriate by installing a soil leveling body for sowing that could be raised and lowered freely, but since the seed storage hopper was attached to the machine side, it was difficult to feed out the seeds from the hopper. There were functional problems such as changes in the distance between the sowing position and the sowing position of the soil leveling body, making the seed fall time uneven and making it impossible to maintain a constant sowing interval.

``Means for Solving the Problems'' However, in the present invention, a ground leveling body for sowing and a seed storage hopper are attached to a sowing frame to constitute a set of sowing units, and a plurality of sets of sowing units are arranged side by side in the left and right direction. This is characterized by the fact that adjacent seeding units are connected to each other so that they can be raised and lowered.

``Function'' Therefore, since the soil leveling body and the seed storage hopper are provided on the seeding frame and the whole is raised and lowered as a seeding unit, the distance between the seed feeding position of the hopper and the sowing position of the soil leveling body is always kept approximately constant. The seeding depth can be maintained appropriately, and the seeding depth and the seeding interval can be made more uniform, and the seeding work speed can be increased more easily than in the past.

"Example" Hereinafter, an example of the present invention will be described in detail based on the drawings. Figure 1 is a side view of a walking type flooded direct sowing machine for six rows, in which 1 is an engine, and 2 is the engine 1.
3 is a seeding drive case connected to the case 2 via the transmission case 4; 5 is a front float that covers the lower surface of the engine 1; 6 is both sides of the transmission case 2. a pair of left and right running wheels installed through a swing case 7;
Reference numeral 8 denotes a steering handle 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.
Numerals 0, 11, and 11 are seeding frames arranged side by side on the left and right via horizontal shafts 13 and 14 which are bendably connected by a bendable spring 12, and 15 is a seeding frame 10 fixed to the front surface of the central seeding frame 10. bracket 16
17 is a swinging fulcrum shaft which is attached to the mold frame 9 so as to be rotatable only forward and backward; 17 is a running trajectory forming streak marker 19 which is movably provided on a bracket 18 fixed to the outside of the left and right seeding frames 11;
are fixed to the lower ends of the seeding frames 10, 11, and have a pair of working protrusions 20, 21 and a seeding groove 22,
Float, which is a ground leveling body formed by forming 23, 2
Reference numerals 4 and 25 refer to soil abutment plates fixed to the bottom of the float 19 and facing from the inside of the seeding grooves 22 and 23; 26 and 27 connect the front end of the center float 19 to the bottom of the transmission case 4 above A swinging link 28 connected and supported by the floats 19 is biased against the seeding frame 10 via an adjustment bolt 29 to lift the front end side of each float 19 and push down the rear end side around the fulcrum shaft 15. spring,
30 is a hopper for storing seeds that is fixed to the upper end side of the sowing frames 10, 11; 31 is a bucket 34, 35 for discharging seeds for two rows, which is rotatably supported on the reservoir 32 of the hopper 30 via a rotating shaft 33; Seed feeding rolls 36 formed in parallel on the outer peripheral surface have their upper ends connected to the reservoir 32 via a partition plate 37, and their lower ends are branched to face the front ends of each seeding groove 22, 23 to guide the seeds as they fall. This is a forked chute for seeding. A plurality of sowing frames 10, 11, 11 to which a sowing float 19, a seed storage hopper 30, etc. are attached are arranged side by side in the left-right direction of the machine, and each of the sowing frames 10, 11, The seeding frames 10, 11, 11 are connected and supported so that the support height of the seeding frames 11 can be changed. As is clear from the above, the float 19, which is a ground leveling body for sowing, and the seed storage hopper 30 are attached to the sowing frames 10 and 11 to constitute a set of sowing units, and multiple sets of sowing units are arranged side by side in the left and right direction. Adjacent seeding units are connected to each other so that they can be raised and lowered, and the float 19 and hopper 30 are provided on the seeding frames 10 and 11 so that the entire seeding unit can be raised and lowered.

The front end side of a float 19 is disposed between a pair of left and right running wheels 6, 6, and a hopper 30 is disposed between the handle 8 and the rear part of a walking type traveling machine in which the running wheels 6, 6 are provided on both sides. , a pair of left and right grooves 22 and 23 that are open to the rear are provided at left-right symmetrical positions at the rear of the float 19, and a chute 36 that communicates the front ends of the grooves 22 and 23 with the feeding side of the hopper 30 is formed in a substantially straight line. It is being extended.

Further, 38 is a main rotation camera fixed to the protruding outer end of the rotating shaft 33, and 39 is the drive case 3.
and a flexible wire 40 that is installed between the seeding frames 10 and 11 and rotates the feed roll 31.
41 is a main shutter that opens and closes the bottom of the hopper 30 via a shutter lever 42; 43 is a lever 44 that adjusts the amount of seeds flowing down into the reservoir 32; The outflow control shutter 45 is a lid provided on the top surface of the hopper 30 so as to be openable and closable.

Furthermore, as shown in Fig. 5, each of the left and right floats 1
Brackets 46, 46 and 47, 47 are fixed near the tips of the horizontal shafts 9, 19 and the horizontal shafts 13, 13, respectively, and both ends of the stabilizer rods 48, 48 are fixed to the respective brackets 46 so as to be bendable only in the vertical direction. , 46 and 47, pin 4 on 47
The stabilizing rods 48, 48 prevent the left and right floats 19, 19 from swinging horizontally and changing direction due to the running resistance. In addition, in order to move the left and right floats 19, 19 up and down against the force of the spring 12 due to unevenness of the rice field, etc., each float 19, which is a ground leveling body, is connected and supported so that it can be independently displaced only in the up and down direction. The floats 19 are formed so that they move up and down and move substantially in parallel following the unevenness of the rice field.

This embodiment is configured as described above, and when seed rice is directly sown in a flooded field after puddling, the germinated seed rice is coated in advance with a water-soluble oxygen generating agent containing a mixture of lime peroxide and calcined gypsum, and 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 as appropriate to allow the seed rice to flow down into the storage section 32, and each float 19 is lowered onto the rice field and pulled by the running wheels 6, and at the same time, the flexible wire 39 The feed roll 31 is rotationally driven through the buckets 34 and 35 of the rolls 31 to scoop up the seed rice in the reservoir 32 and throw it into the upper end of the chute 36, and from the fork-shaped lower end of the chute 36, the seed rice for sowing is collected. The seed rice is dropped into the grooves of the rice field formed by the protrusions 20 and 21 through the grooves 22 and 23, and the grooves are closed with the soil fill plates 24 and 25 to perform cultivation. , the horizontal rotation of the left and right floats 19, 19 is controlled by the stabilizing rod 4.
8 and 48, and the horizontal shaft 14 bends only in the vertical direction via the spring 12 according to the unevenness of the rice field, and the float 19 moves up and down, following the undulations of the rice field. Let float 19
The ground pressure is maintained approximately constant, the width and depth of the seeding groove formed by the projections 20 are approximately constant, and the amount of soil on the soil abutment plates 24 and 25 is approximately uniform, and the seeding accuracy is set in advance. It is something that can be obtained.

``Effects of the Invention'' As is clear from the above embodiments, the present invention provides a method for constructing a set of sowing units by attaching a ground leveling body 19 for sowing and a seed storage hopper 30 to the sowing frames 10 and 11, and a plurality of sets of sowing units. The units are arranged side by side in the left and right direction, and the adjacent sowing units are connected to each other so that they can be raised and lowered freely.The ground leveling body 19 and the seed storage hopper 30 are provided on the sowing frames 10 and 11, and the whole unit can be raised and lowered as a sowing unit. Therefore, the distance between the seed dispensing position of the hopper 30 and the sowing position of the soil leveling body 19 is always kept substantially constant, and the sowing depth can be maintained appropriately, making the sowing depth and the sowing interval more uniform than in the past. In addition, it is possible to easily increase the speed of sowing operations.

[Brief explanation of drawings]

Fig. 1 is a side view of a submerged direct seeding machine showing an 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 a cross-sectional side view of the same, Fig. 5 is a plan view of the same part. 10, 11...Seeding frame, 19...Float (ground leveling body), 30...Seed storage hopper.

Claims (1)

[Claims] 1 Ground leveling body 19 for sowing and seed storage hopper 3
0 is attached to the seeding frames 10 and 11 to form a set of seeding units, a plurality of sets of seeding units are arranged side by side in the left and right direction, and adjacent seeding units are connected to each other so as to be able to move up and down. Direct sowing machine.