JPH0233640Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention consists of a center float grounding body that is installed in a rice transplanter or a submerged soil seeding machine and slides over plowed paddy fields; This invention relates to a float type ground leveling body structure in which a side float grounding body is connected and arranged.

[Prior art]

In this type of rice transplanter, seeding machine, etc., which has a float-type ground leveling body that slides over plowed flooded rice fields, the load due to the running drive reaction force acts on the rear, causing the rear of the float-type leveling body to sink and the front to rise. There is a tendency to

On the other hand, these rice transplanters, seeding machines, etc. have a restriction that the planting depth of seedlings or the sowing depth of seeds must be constant regardless of the hardness or softness of the field.

Therefore, if the float-type soil leveling body is made larger in order to reduce the ground pressure and support the aircraft, the planting depth of other rows changes due to muddy water being pushed out, causing problems with growth. The problem is that it is not possible to increase the width of the float-type ground leveling body for rice transplanters, seeding machines, etc. because it will interfere with other planted shoots or sowing rows whose distance is limited to a certain extent. There is a point.

[Purpose of invention]

The present invention was devised in view of the above-mentioned conventional situation and to solve the problem.In order to reduce the ground pressure without increasing the size of the float type earth leveling body, the present invention is designed to reduce the sinking of the float type earth leveling body. It is an object of the present invention to provide a float-type ground leveling body structure that does not interfere with other rows by providing a supporting ground support plate.

[Structure of the idea]

The float type land leveling body structure according to the present invention that achieves the above object is a float type land leveling body structure in which left and right side float leveling bodies are arranged outside a center float leveling body, and a ground leveling body that protrudes on both the left and right sides of the float leveling body. The projecting width of the support plate is narrow or nonexistent for the center float leveling body, and the side float leveling body extends widely.

〔Example〕

Hereinafter, the drawings showing the present invention as an embodiment will be explained.

Reference numeral 1 denotes a seeding machine on which left and right seed tanks 2, 2 are mounted, and each seed tank 2 has a built-in seed feeding mechanism (not shown). This seeding machine 1 is provided with an integrated body 12 that extends in the front-rear direction and is located at the center of the width by connecting and fixing an engine 3, a transmission 4, an intermediate transmission case 5, and a rear transmission case 6 in this order from the front. The base end of an operating handle 7 extending rearward is fixed to the rear transmission case 6.

The transmission 4 is provided with left and right swing cases 9, 9 which are biased and supported so as to be able to swing up and down about the axis 8 of a drive shaft (not shown) that protrudes on both the left and right sides. This swing case 9,
At the swing end of each of the swing cases 9, a running wheel 10 is provided, which is driven by each drive shaft and a transmission device (not shown) disposed in the swing case 9, and runs while touching the tiller 11. A plurality of lugs 10a are provided around each running wheel 10.

Below the body 12 is a center float ground leveling body 13 that has a hollow interior and slides on the rice field.
The center float leveling body 13 is formed to have a length extending rearward from below the front engine 3 beyond the rear seed tank 2, and the rear side is connected to the rear transmission which constitutes the fuselage 12. It is pivotally supported by a mounting pin 14 provided at the bottom of the case 6, and connected by a link (not shown) so that the front side can swing vertically about the mounting pin 14. Left and right running wheels 10, 10 are located on both sides of this center float leveling body 13, and on the outside of these left and right running wheels 10, 10, there are left and right running wheels 10, 10, which are hollow inside and slide on the rice field. Side float leveling body 15, 15
is arranged, and this side float leveling body 1
5 has a rear end located at approximately the same position as the rear end of the center float leveling body 13, and a front end located near the traveling wheel 1.
The length is short so that it is located near the rotation axis of 0,
Further, the width of the portion along the side surface of the running wheel 10 on the front side is narrow, and the width becomes wider on the rear side.

In this way, by narrowing the width of the front side of the side float leveling body 15, the mud pushing action by the tip of the side float leveling body 15 while traveling is reduced, and the mud covers the adjacent seeding rows. This prevents overburden, which increases the seeding depth and adversely affects germination, and also increases the distance between the running wheels 10 and the running wheels 10 to prevent muddy soil scraped up by the lugs 10a from falling and accumulating on the side float leveling bodies 15. It is designed to prevent people from doing so. Also,
A sloped section is provided between the narrower front side and the wider rear side to guide mud backwards without damming it up. Furthermore, the rear side of the side float leveling body 15 is formed with a wide width on both sides sandwiching the seeding groove, and muddy water flows into the seeding groove from both sides due to negative pressure at the advancing rear end, causing seeds after sowing to flow away. It is designed to be as wide as possible.

On the other hand, the center portion of a connecting pipe 17, which is U-shaped in front view and extends to the center of the width of the left and right side float leveling bodies 15, 15, is fixed to the front side of the fixing bracket 16 fixed above the rear transmission case 6. Right and left connecting fittings 18, 18 facing in the front-rear direction are fixed to the left and right ends of the connecting pipe 17, respectively, and the two mounting pins 21, 21 in the front and rear provided on each connecting fitting 18 are fixed to the left and right ends of the connecting pipe 17. Two mounting pins 22, 2 on the front and rear provided on the side float leveling body 15
2 through the front and rear links 19, 19, each side float leveling body 15
is connected to the fuselage 12 via each parallel link 20 so as to move up and down in parallel.

The left and right seed tanks 2, 2 are connected to a connecting pipe 17.
This seed tank 2, 2
The seed feeding mechanism built into the seed tank 2,
It is designed to be driven by a power transmission mechanism in a rear transmission case 6 located between the seed tank 2, and two seed drop tubes 23, 23 are suspended from each seed tank 2. The left and right seed drop tubes 23, 23 located in the left and right sides face each opening 24 opened in the side float leveling body 15, respectively, and the left and right seed drop tubes 2 facing each other on both insides.
3 and 23 are respectively center float grounding bodies 1
It faces two rows of openings 24, 24 opened at 5, and in this embodiment four rows of seeds can be sown at the same time.

In addition, on the bottom of each opening 24 opened at the rear of each float grounding body, there is a groove plate 25 located in front of the position of the seed drop tube 23, and a soil plate 26 located behind the position of the seed drop tube 23. and a seed covering mechanism 28 consisting of a soil covering plate 27 provided at the rear of the culturing soil plate 26 is provided.
It is composed of a seed covering mechanism 28, a seed tank 2, a seed dropping tube 23, and the like.

In this invention, center float leveling body 1
3, and the left and right side float leveling bodies 1 on the outside.
5 and 15, the protruding width of the ground supporting plates 30 that protrude on both the left and right sides of these floating ground leveling bodies is narrow, and the center float leveling body 13 has a narrow width. Alternatively, the left and right side float leveling bodies 15 are made to extend widely.

In other words, as shown in FIG. 3, it is desirable that the center float leveling body 13 does not have the ground support plate 30, but when manufacturing the float, for example, molding and
If necessary for processing, the protrusion width of the ground support plate 30 is made to protrude to a narrow width S. Then, on the side float grounding body 15 side, a grounding support plate 30 is extended to a wide width L to reduce the ground pressure and prevent the side float grounding body 15 from sinking without increasing the size of the side float grounding body 15 itself. This is what I did.

In addition, as shown in FIG. 3, by positioning the grounding support plate 30 at a predetermined height T above the bottom surface of the float, only the bottom surface of the float can be grounded in fields that are relatively hard and have little subsidence. Although it has the advantage of reducing running resistance by
In soft fields where there is a lot of subsidence, this ground support plate 30
It is desirable to provide it so that it is flush with the bottom surface of the float.

Therefore, in the present invention, the tiller 1 is
When the load due to the running drive reaction force of the running wheels 10, 10 running while touching the ground acts on the rear side of the axis 8 of the drive shaft, the rear part of the float type ground leveling body tends to sink and the front part tends to rise. Despite this tendency, the wide grounding support plate 30 provided on the side of the side float grounding body 15 can prevent the side float grounding body 15 from sinking. The center float 13 grounding body connected to the center float 13 is particularly enlarged so that muddy water is not pushed out and disturbs other seeding rows, and the grounding pressure is reduced without increasing the size of the side float grounding body 15 itself. can do. Furthermore, by providing wide ground supporting plates 30 on the side float grounding bodies 15, 15 located on both sides of the center float grounding body 13, it is possible to prevent rolling of the fuselage 12, and also to prevent the rolling of the aircraft body 12. The strength of the float grounding bodies 15, 15 can be reinforced by the grounding support plate 30.

In addition, a control handle 7 extends behind and above the center float grounding body 13, and muddy water is often splashed up by workers who walk while holding this control handle 7, but the center float grounding body 13 By not protruding the ground support plate 30 widely like the side float grounding body 15, or by not protruding it at all, the mud thrown up by the worker will accumulate behind the center float grounding body 13, and the rear part will be prevented. Subsidence or center float grounding body 1
This prevents detection errors in the sensing mechanism that detects the top and bottom of the rice field, and enables stable tracking of the rice field.

Next, other embodiments shown in FIGS. 5 to 7 will be described. In FIG. 5, only the grounding support plate 30 on the side float grounding body 15 side provided at the portion facing the running wheels 10 has its protruding width set to the minimum width S, similar to the grounding support plate 30 of the central float grounding body 13. In FIG. 6, only the grounding support plate 30 on the side float grounding body 15 side provided at the part facing the running wheels 10 is
The lug 10a of the running wheel 10 is prevented from protruding from the side float 1 from its rim position.
It is made to protrude only toward the center float grounding body 13 side without protruding toward the 5 side.

Therefore, in this example, the mud scraped up by the lugs 10a of the running wheels 10 during running falls onto the ground support plate 30 approaching the running wheels 10 and accumulates on the side float grounding bodies 15. This makes it possible to solve the problem that occurs when a wide ground supporting plate 30 is provided, in which the weight of the side float grounding body 15 increases and stable sliding cannot be achieved.

In addition, the float type grounding body structure of the present invention can be used as a rice transplanter by allowing a seedling planting device to face each opening 24 of each floating grounding body and by providing a pine seedling mounting stand. .

[Effect of idea]

In short, the float type land leveling body structure according to the present invention has a float type land leveling body structure in which left and right side float leveling bodies are arranged outside a center float leveling body, and a ground support plate that protrudes on both left and right sides of the float leveling body. The center float leveling body has a narrow or no protruding width, and
Because the side float leveling body has a wide extension, the load from the running drive reaction force acts on the rear, and the front side of the float type leveling body tends to rise and the rear side sinks. The wide grounding support plate provided on the body side prevents the side float grounding body from sinking and makes it possible to maintain a constant seedling planting depth or seed sowing depth. The center float grounding body to be connected is made particularly large so that muddy water will not be pushed out and interfere with other seeding rows and planting rows, and the grounding pressure can be increased without increasing the size of the side float grounding bodies themselves. It can be reduced. Furthermore, by providing wide ground support plates on the side float grounding bodies located on both sides of the center float grounding body, rolling of the aircraft can be prevented, and the strength of the side float grounding bodies that prevent this rolling can be increased. It can also be reinforced with a ground support plate.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is an overall plan view of a seeding machine implementing the present invention.
Figure 2 is a side view of Figure 1, Figure 3 is a - side view of Figure 1.
FIG. 4 is a plan view of the float showing its relationship with the running wheels. 5 to 7 show other embodiments, in which FIGS. 5 and 6 are vertical cross-sectional views taken along the - arrow in FIG. 1, and FIG. 7 shows the relationship between the float and the running wheels. FIG. 13... Center float grounding body, 15... Side float grounding body, 30... Grounding support plate.

Claims (1)

[Scope of utility model registration request] In a float-type ground leveling body structure in which left and right side float leveling bodies are arranged outside a center float leveling body, the protrusion width of the ground supporting plate protruding from both left and right sides of the float leveling body is set such that the center float leveling body has a narrow width; Or, there is no float type land leveling body structure, and the side float leveling body is characterized by extending widely.