JPH0614612A - Seeder - Google Patents

Abstract

PURPOSE:To improve germination ratio of seed and rooting condition by digging the bottom part C of a seeding ditch B made by a ditch forming part 31 of a seeding ditch forming member 26, grinding soil and laying seeds sowed on the seed ditch B in the bottom part C of the dug and ground soil. CONSTITUTION:A ridge forming member 23 is constituted by equipping a revolving shaft 24 with plural drain ditch forming members 25 having a large diameter and seeding ditch forming members 26 at intervals and alternately. The seeding ditch forming member 26 is provided with a ditch forming part 31 of approximately V-shaped cross-section making a seed ditch B at the outer peripheral part of a disklike main body 30. The peripheral part of the ditch forming part 31 is protrusively equipped with a digging blade 32 to dig the bottom part C of the seed ditch B. The ridge forming member 23 is driven and rotated by output from a transmission 4 attached to a machine frame 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The seeding device of the present invention relates to a device for directly sowing seeds such as rice paddy and seeds of vegetables in rice fields and uplands.

[0002]

2. Description of the Related Art Conventionally, as a seeding device of this type, as described in, for example, Japanese Patent Application Laid-Open No. 4-148603, a machine frame towed by a towing vehicle is rotationally driven in contact with the ground. A rotary shaft is provided, and a large number of large-diameter deep groove forming blades each having a groove forming portion having a V-shaped cross section are provided in parallel on the outer peripheral portion of the rotating shaft, and each deep groove is formed. A large number of small-diameter shallow groove forming blades each having a groove forming portion having a V-shaped cross section are provided in parallel on the outer peripheral portion of the rotary shaft located between the blades, and a seed hopper is provided on the machine frame. There is known a structure in which each sowing port of a plurality of hoses connected to a seed hopper is disposed and fixed to the rear upper part of each of the small-diameter shallow groove forming blades.

[0003]

In the structure described in the above publication, the rotary shaft is rotationally driven to form the groove forming portions of the large-diameter deep groove forming blades and the small-diameter shallow groove forming blades. The sections are respectively slip-rotated with respect to the soil, and the deep groove forming blades having large diameters form deep drainage grooves having a V-shaped cross section, and the shallow groove forming blades having small diameters are used to A shallow groove for seeding having a V-shaped cross section is formed between the deep grooves for drainage.
Since the groove forming portion having a V-shaped cross section at the outer peripheral portion thereof advances while slipping and rotating against the soil, the cross section formed by the groove forming portion of each small-diameter shallow groove forming blade. The V-shaped shallow seeding groove is often formed in a state in which both side walls and sharp bottoms between the both side walls are firmly soiled and molded. In such a case, when seeds are sown in the sowing shallow groove, the seed does not reach the sharp bottom of the sowing shallow groove, or even if it reaches this sharp bottom,
There is a problem that the germination rate and root tension are poor, and the growth and growth of crops may be hindered.

The present invention has been made in view of the above problems, and it is possible to excavate the bottom of the seeding groove when forming the seeding groove and reliably prevent the bottom of the seeding groove from being firmly soiled. , It is an object of the present invention to provide a seeding device which has good germination rate and root tension of seeds sown in this seed groove and is capable of forming extremely preferable ridges for promoting growth and growth of crops. is there.

[0005]

The seeding device of the present invention comprises a machine frame provided with a mission having an input shaft, a rotary tiller mounted on the machine frame and driven to rotate by an output from the mission, and A ridge molding located in the rear part of the rotary tiller, which is provided in the machine frame and is driven to rotate by the output from the mission, and a seed groove formed in the machine frame and formed by the ridge molding. And a seed hopper having a sowing opening to provide the ridge molded body has a rotary shaft that is rotationally driven by the output from the mission, a plurality of large diameters at intervals in the axial direction of the rotary shaft. The drain groove molded bodies are fixed to each other, and the small diameter seeding groove molded bodies are respectively fixed to the rotary shaft located between the drain groove molded bodies, and the seeding groove molded bodies are formed in a disc shape. Has a main body A groove forming portion having a substantially V-shaped cross section is formed on the outer peripheral portion of the main body portion of the body, and a digging blade body for excavating the bottom portion of the seeding groove is provided on the peripheral portion of the groove forming portion. It was done.

[0006]

In the seeding device of the present invention, when the rotary cultivator and the ridge molding are respectively driven to rotate by the output from the mission while the machine frame is towed and advanced, the rotary cultivator successively cultivates the field, and Plowed soil is formed so that shallow seeding grooves are sequentially formed in the groove forming part of the small diameter seeding groove forming body fixed to the rotary shaft of the ridge forming body, and the rotation of the ridge forming body is formed on both sides of this shallow seeding groove. Deep drainage grooves are simultaneously and sequentially formed by the plurality of large-diameter drainage groove molded bodies fixed to the shaft. At this time, since the groove forming portion of the small diameter seed groove forming body is formed in a substantially V-shaped cross section, the shallow seed groove is formed in the groove forming portion in a substantially V-shaped cross section and the groove forming is performed. It is prevented that the bottom of the shallow seeding groove is excavated by the excavation blade that is provided so as to project at the peripheral edge of the portion, and that the bottom is pressed down and becomes firmly soiled.

Further, while the rotary tiller and the ridge molding are rotationally driven, the seeds are fed from the feeding section of the seed hopper, so that these seeds are formed at the sowing groove molding of the ridge molding from the sowing mouth. The seeds are successively sown in the formed shallow seeding grooves and dropped on the excavated bottom of the shallow seeding grooves.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of an embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a machine frame, which has a main frame 2 which is long in the left-right direction, and an input shaft 3 is provided at a substantially middle portion of the main frame 2 so as to be rotatable forward. The mission 4 is provided and the mast 5 is attached to the upper end of the mission 4.
Is integrally projected toward the upper front. Further, lower arms 6 are integrally projected forward on both sides of the main frame 2, and lower pins 7 are projectingly provided on the left and right lower arms 6.

The mission 4 has a case body 8 fixed to the main frame 2 and long in the vertical direction.
The input shaft 3 is rotatably projected on the front side of the upper end of the output shaft 9 and the base end 10 of the output shaft 9 rotatably provided in the main frame 2 between the left and right side parts thereof. Is rotatably mounted, and a bevel gear 11 fixed to the base end 10 of the output shaft 9 is meshed with a bevel gear 12 fixed to the base end of the input shaft 3. At the lower end of the case body 8, an intermediate portion of the rotary tiller 13 is rotatably mounted. This rotary cultivator 13 has a cultivating shaft 14 whose middle portion is rotatably rotatably mounted on the lower end of the case body 8. A large number of cultivating claws are provided at intervals in the axial direction of the cultivating shaft 14. 15 are projected radially. A sprocket 16 is fixed to the cultivating shaft 14 in the lower end portion of the case body 8, and a sprocket 17 is fixed to the base end portion 10 of the output shaft 9 in the upper end portion of the case body 8, An endless chain 18 is rotatably suspended between the upper and lower sprockets 16 and 17.

The rotary tiller 13 is rotationally driven in the downcut direction by the output from the mission 4. Further, a cover body 19 for covering the upper portion of the rotary tillage body 13 is integrally fixed to the lower side portion of the main frame 2 via a plurality of stays. Thus, the mast 5, the main frame 2 having the left and right lower arms 6, the mission 4, and the rotary cultivating body 13 having the cover body 19 constitute a cultivating mechanism section 20.

Next, upper ends of a vertically long transmission case 21 and a bracket 22 which are arranged parallel to each other in the rearward and downward direction are fixed integrally to both ends of the main frame 2, respectively. Between the lower ends of the transmission case 21 and the bracket 22 which face each other, a ridge molding 23 is rotatably mounted on the rear part of the rotary tiller 13 so as to be rotatable. This ridge molding
Reference numeral 23 denotes a rotary shaft 24 rotatably supported by bearings 24a provided at the lower ends of the transmission case 21 and the bracket 22, and the rotary shaft 24 is spaced apart in the axial direction. The center portions of a large number of large-diameter drainage groove moldings 25 are integrally fixed, and the rotary shaft 24 is formed with a large number of small-diameter seeding groove shapes in the axial direction between the large number of drainage groove moldings 25. The central portion of the body 26 is integrally fixed.

Each of the drain groove forming bodies 25 has a disk-shaped main body portion 27, and a groove forming portion having a substantially V-shaped cross section which forms a deep drain groove A on the outer peripheral portion of the main body portion 27. 28 is integrally formed, an annular projecting edge 29 is integrally formed on the peripheral edge of the groove forming portion 28, and annular engaging edges 33 are formed on both sides in the axial direction of the main body portion 27. It is shaped like an abacus. Then, the drainage groove molded bodies 25 have the body plate portions 27
a, groove forming plate having groove forming plate portion 28a and annular edge portion 29a
The 25a are opposed to each other, and are integrally formed into an abacus shape.

Further, each of the seed groove forming bodies 26 has a body portion 30 formed in a disk shape having a smaller diameter than the body portion 27 of the drainage groove forming body 25, and the outer peripheral portion of the body portion 30 is shallow. Seeding groove B
The groove forming portion 31 having a substantially V-shaped cross section is integrally formed, and the bottom portion C of the seeding groove B is formed on the peripheral edge portion of the groove forming portion 31.
An excavating blade body 32 for excavating is integrally formed in an annular corrugated shape, and annular engaging edges 34 are formed on both axial sides of the main body portion 30.
Is formed, and is formed in a generally abacus shape.
Thus, each seeding groove forming body 26 is integrally assembled by facing the body forming plate portion 30a, the groove forming plate portion 31a, and the groove forming plate 26a having the annular edge portion 31b integrally with each other to form an abacus shape. Has been formed. And, the annular edge portion 31b which has been united to face each other.
The excavation blade body 32 is integrally formed in a wavy shape within the width of the annular edge portion 31b at the peripheral edge portion of the.

The respective engaging edges 33 between the drain groove moldings 25 and the seeding groove moldings 26, which are alternately arranged and fixed on the rotary shaft 24 at predetermined intervals, are opposed to each other. , 34
Both ends of a cylindrical collar 35 for positioning the above and leveling the surface E of the ridge D are fitted in between. Then, the ridge D is formed by the left and right large-diameter drainage groove molded bodies 25 and the small-diameter seeding groove molded bodies 26 between the large-diameter drainage groove molded bodies 25. Therefore, a plurality of rows of ridges D are continuously formed side by side by means of these large-diameter drainage groove forming bodies 25 and small-diameter seeding groove forming bodies 26.

Further, one end of the rotary shaft 24 is projected into the lower end of the transmission case 21, and a sprocket 36 is fixed to the projected end. Also. The tip of the output shaft 9 is projected into the upper end of the transmission case 21, and a sprocket 37 is fixed to the projecting end.
An endless chain 38 is rotatably suspended between 37 and the sprocket 36. And the ridge molded body 23,
It is adapted to be rotationally driven by the output from the mission 4.

Next, a connecting frame 39 is integrally projecting rearward at the rear portions of both sides of the machine frame 1, and is horizontally fixed to the rear end portions of the left and right connecting frames 39 facing each other. Brackets 41 are integrally fixed to both ends of the support frame 40 so as to face each other, and a plurality of hose support members are axially spaced from each other on a suspension rod 42 fixed horizontally between the left and right brackets 41. 43 are juxtaposed. A plurality of seed hoppers 44 are detachably supported by the support frame 40 at intervals in the axial direction, and the seed feeding portions 45 of the various child hoppers 44 have upper ends of flexible hoses 46. Are connected to each other, the seeding openings 47 at the lower ends of the hoses 46 of the various child hoppers 44 are respectively supported by the supporting portions 48 of the hose supporting bodies 43, and the seeding openings 47 are formed in the seeding groove forming bodies 26. It is arranged and fixed so as to face the rear portion of the excavating blade body 32.

Next, the operation of the above embodiment will be described.

The three-point suspension mechanism of the tractor is connected to the three-point connection part of the mast 5 of the machine frame 1 and the left and right lower pins 7, and the PTO shaft of the tractor is connected to the main frame 2 via the power transmission shaft. The input shaft 3 of the provided mission 4 is connected.

Next, when the input shaft 3 of the mission 4 is rotated by the output from the PTO shaft of the tractor while the machine frame 1 is being pulled by the tractor, the output from the output shaft 9 of the mission 4 causes the rotary shaft to rotate. The cultivator body 13 and the ridge molding 23 are driven to rotate. Then, the field is sequentially cultivated by the rotation progress of the rotary cultivator 13 in the down-cut direction, and the cultivated soil is deep in the shallow sowing groove B and both sides of the shallow sowing groove B due to the rotation progress of the ridge molding 23. The drainage grooves A are sequentially formed simultaneously.
That is, in the tillage, the shallow seeding grooves B are sequentially formed at the groove forming portion 31 of the small diameter seeding groove forming body 26 fixed to the rotary shaft 24 of the ridge forming body 23, and both side portions of the shallow seeding groove B are formed. In this, deep drainage grooves A are simultaneously and sequentially formed by a plurality of large-diameter drainage groove moldings 25 fixed to the rotary shaft 24 of the ridge molding 23.

At this time, since the groove forming portion 31 of each small diameter seeding groove forming body 26 is formed in a substantially V-shaped cross section, the shallow seeding groove B is formed in the groove forming portion 31 in a substantially V-shaped cross section. While being continuously formed, the bottom C of the shallow seeding groove B is continuously excavated and crushed by the corrugated excavating blade 32 projecting from the peripheral edge of the groove forming portion 31, and this excavated soil is The corrugated surface of the excavating blade 32 is discharged to the side and is not clogged with soil, and the bottom portion C is prevented from being pressed and hardened. Further, since the groove forming portion 28 of each large-diameter drainage groove forming body 25 is formed in a substantially V-shaped cross section, the deep drain groove A is continuously formed in the groove forming portion 28 in a substantially V-shaped cross section. It is formed. The small diameter seeding groove molded bodies 26 and the large diameter drainage groove molded bodies 25 are rotated by the output from the mission 4 by the rotary shaft 24 at a rotational speed higher than the traveling speed, so that the small diameter seeded groove molded bodies are formed. The groove forming body 26 and each large-diameter drainage groove forming body 25 are driven to slip and rotate with respect to the tillable soil, and the shallow seeding groove B and the deep drainage groove A whose bottom C is excavated and ground have a substantially V-shaped cross section. It is surely molded and soil is prevented from adhering to them.

While the rotary tiller 13 and the ridge molding 23 are rotationally driven, the seed feeding section 45 of each child hopper 44 is also driven.
As seeds are fed from the seeds, these seeds pass through the respective hoses 46 and the respective sowing openings 47 to form the shallow seeding grooves B formed in the groove forming portions 31 of the respective seeding groove formed bodies 26.
The seeds are sequentially sown inside, and are surely dropped to the excavated portion of the excavated bottom C of the shallow seeding groove B formed by the excavating blade 32 and landed. Then, preparations are made for germination of various seeds seeded in each shallow seeding groove B.

Next, in the above embodiment, the seed groove forming body 26
Although the case where the excavating blade body 32 is formed in a wavy shape in a series in the peripheral edge of the groove forming part 31 has been described, the invention is not limited to this.
For example, as shown in FIG. 7 and FIG.
A large number of independent digging blades 49 may be provided at predetermined intervals on the peripheral edge of the groove forming portion 31, and the digging blade bodies 32 may be configured as a whole by these digging blades 49. . That is, in the embodiment shown in FIG. 7, the groove forming part 31 of the seeding groove forming body 26 is used.
A large number of excavating blades 49 formed in a rectangular shape with respect to the peripheral edge of the are intermittently and integrally projected in a state of being inclined at a predetermined inclination angle with respect to the axial direction. And this each drilling blade 49
At the bottom C of the seeding groove B is sequentially excavated and crushed, and this excavated soil is discharged laterally by the inclined surface of the excavating blade 49.

The embodiment shown in FIG. 8 is a seed groove forming body.
A large number of excavating blades 49 formed in a block shape having a triangular shape in a plan view are intermittently and integrally protruded from the peripheral portion of the groove forming portion 31 of 26. In this case, each digging blade 49 is arranged and fixed with its sharp corner portion 49a directed in the direction of rotation of the seed groove forming body 26. Then, the bottom portion C of the seeding groove B is sequentially excavated by each of the excavating blades 49 and crushed, and the excavated soil is discharged laterally by the inclined surfaces 49b on both sides of the excavating blade 49.

[0025]

According to the present invention, a ridge molding, which is rotationally driven by the output from the mission, is provided at the rear part of the rotary tiller, and the ridge molding is provided with a plurality of gaps in the axial direction of the rotary shaft. A large-diameter drainage groove molded body is fixed to each of the drainage groove molded bodies, and a small diameter seeding groove molded body is fixed to the rotary shaft between the drainage groove molded bodies. A groove-forming portion having a substantially V-shaped cross-section is formed on the outer peripheral portion, and an excavating blade is projectingly provided on a peripheral portion of the groove-forming portion, so that a seeding groove is formed in the groove-forming portion of the seeding groove-forming body. When doing so, it is possible to reliably excavate the bottom of the seeding groove with an excavating blade and crush the soil, and it is possible to reliably prevent the bottom of the seeding groove from being firmly soiled. The seeds that have been planted can be reliably landed on the bottom of the excavated and crushed soil in the seed ditch. Good tension rate and roots, it is possible to provide a seeding device can be seeded to form a highly preferred ridges on to promote the development and growth of the crop.

[Brief description of drawings]

FIG. 1 is a side view of a seeding device showing an embodiment of the present invention.

FIG. 2 is a plan view in which a part of the cultivating mechanism part and the ridge molding is cut away.

FIG. 3 is a rear view of the same.

FIG. 4 is a front view of the same seed groove forming body.

FIG. 5 is an enlarged sectional view of a part of the same.

FIG. 6 is a cross-sectional view showing a molding state of the seeding groove and the drain groove of the same as above.

FIG. 7 is a front view of a seed groove forming body according to another embodiment.

FIG. 8 is a front view of a seed groove forming body according to still another embodiment.

[Explanation of symbols]

 1 Machine frame 3 Input shaft 4 Mission 13 Rotary tiller 23 Ridge molding 24 Rotation shaft 25 Drain groove molding 26 Seeding groove molding 30 Main body 31 Groove molding 32 Excavation blade 44 Seed hopper 47 Seeding mouth A Drain groove B Seeding groove C bottom

Claims (1)

[Claims] 1. A machine frame provided with a mission having an input shaft, a rotary cultivator body provided on the machine frame and driven to rotate by an output from the mission, and a rotary cultivator body located at a rear portion of the rotary cultivator body. A ridge molding provided in the machine frame and driven to rotate by the output from the mission, and a seed hopper having a seeding port for seeding in a seeding groove formed in the ridge molding provided in the machine frame, The ridge molded body has a rotary shaft that is rotationally driven by the output from the mission, and a plurality of large diameter drainage groove molded bodies are respectively fixed at intervals in the axial direction of the rotary shaft. A small diameter seeding groove formed body is fixed to the rotary shaft between the drainage groove formed bodies, and the seeding groove formed body has a disc-shaped main body. The seed groove is provided on the outer periphery. The cross-section substantially V-shaped groove forming portion for forming formed, this is in the periphery of the groove forming portion sowing apparatus characterized by projecting from the digging edge body to excavate the bottom of the sowing grooves.