JP2002034305A - Weeder for paddy - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paddy weeder which can suitably and repeatedly weed from an early period after rice transplantation. SOLUTION: This paddy weeder is obtained by connecting a plurality of float weeding mechanisms 9 to frames 2 and frame distance-adjusting tools 3 and loading an engine 4 on the connected assembly to transmit the power to weed in paces between rows. Each float weeding mechanism 9 is obtained by integrally disposing a weeding device 7 using a soft weeding rotor 8 on the rear portion of a floating float 5 in a structure which can vertically be adjusted in response to the level of water. A detachable auxiliary weeding device 17 for pressurizing and discharging water or air with a mission and a pump to weed in spaces between rows is further preferably disposed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paddy field weeding machine capable of initial weeding and medium-tillage weeding immediately after planting.

[0002]

2. Description of the Related Art Conventional paddy field weeding machines are for use in fields with a low weed occurrence density cultivated using herbicides.
In addition, there is a power type for walking, a rotation type around a horizontal axis in which a plurality of stirring rotors are arranged in a single axis in parallel, and a weeding work structure almost the same as that described above has been changed to a riding type traveling specification, and There is known an auxiliary rotor in which a stirrer is combined with a vertical axis rotation as an auxiliary rotor obtained by adding inter-plant weeding to a structure.

[0003]

In a conventional weeding machine, a medium-cultivated weeder that uses a weeding machine only once during the cultivation period in a normal rice cultivation field using a herbicide and a chemical fertilizer, which are one of the pesticides. In addition to the effect, the synergistic effect of oxygen supply to the roots and the promotion of tillering by cutting off roots, and the increase of the yield by the soundness of rice stocks, the role of paddy weeding machines is sufficient, and the early stage of rice planting can be used immediately after planting. No paddy weeder was needed for weeding.

However, in recent years, the production of the organic rice system based on the guidelines of the Ministry of Agriculture, Forestry and Fisheries is based on the prerequisite that continuous cultivation of herbicides, chemical fertilizers, and the like is performed without use for three years or more. In contrast, the conventional method of weed generation was extremely vigorous and the germinated and grown weed was agitated, inverted, and buried, and after several days, it re-emerged repeatedly, and the herbicidal effect of the paddy weeding machine was insufficient.

The period of weeding using a paddy field weeding machine based on the cultivation of the organic rice system is from immediately after the rice transplanting to the time when the leaves prosper and lightly cover the rice field. Days before and after.

[0006] From the above-mentioned organic rice system, cultivation without using a herbicide requires a paddy field weeding machine to be used about 4 to 6 times during a rice cultivation cycle, approximately once a week.
The frequency of weeding will be very high. Therefore, the hand-push type cannot increase efficiency and can only perform a small area. Immediately after rice planting, which has not yet been scraped, the sedimentation and hardening of the surface soil has not progressed yet. Burial of neighboring rice plants.

[0007] The above-mentioned power type for walking requires that the human body must walk for a long time and long distance on muddy paddy soil together with the airframe, and the airframe must be lifted when the headland changes direction. Extremely severe heavy labor is required because the work is very heavy. In addition, due to the rotation of the weeding rotor due to the rotation around the axis of the horizontal axis, there is a problem that small and incompletely cultivated rice plants immediately after planting are buried under the influence of earth pressure and water pressure.

In the riding type traveling specification, since narrow wheels are required for traveling in a space between rice strips at the time of work, a roadbed breakage in a paddy field occurs, and when the traveling is attempted again, a steering wheel operation is performed. At the same time, it loses straightness, and at the same time, the surrounding rice plant is buried due to the effect of lifting and falling of the soil attached to the wheel, and the wheel stomps on the rice plant at the time of turning, the occurrence of missing plants increases, resulting in a decrease in revenue. thing.

[0009] Generally, paddy field weeding machines that are commercially available are mainly used for weeding between strips, and the weeding between studs using the above-mentioned vertical-rotation rotor can be performed only when the rice stock does not grow to 7 to 8 leaves. May be entangled in the vertical rotating rotor and buried, and generally cannot be used very much for early and middle weeding. Therefore, the actual weeding and stirring area of a commercially available paddy weeding machine is about 65% of the field area, and the other untreated parts must rely on manual weeding and the remaining 35% untreated. If you take the part,
The total number of days required for manual weeding per 0 ares depends on the growth degree of the weeds, but 3 to 4 days for 3 to 4 leaf growth, and about 1 week for 5 to 6 leaves.

[0010] The growth of weeds after rice transplanting without using herbicides (excluding the effect of controlling weed germination by deep water management and application of undecomposed organic matter) depends on regional differences. In the rice field, weeds grow around 2 leaves 1 to 2 weeks after rice planting, and grow around 3 to 5 leaves 3 to 4 weeks after weeding, the weed density is extremely high, and it becomes a lawn state that is difficult for manual weeding .

Therefore, unless the untreated portion of the horizontal inter-line weeding is started immediately after planting the rice, the cultivation of the organic rice system requires:
Practically difficult.

In the early rice transplanting season, the temperature is low,
Cultivation using 100% organic fertilizers has a slower fertilizing effect than rice fields using chemical fertilizers and tends to delay rice growth. Therefore, the early use of the paddy field weeding machine, which is an effective weeding means, becomes even slower and more difficult than the fields using chemical fertilizers.

The present invention has been made in such a production site of the organic rice system, focusing on the poor situation of the conventional paddy weeding machine specifications, and has been freed from the labor of human weeding. It is an object of the present invention to provide a paddy field weeding machine that can expand the business scale in a favorable environment and contribute to reducing production costs.

[0014]

According to a first aspect of the present invention, there is provided a paddy field weeding machine comprising an engine mounted on a weeding machine body, and a weeding device which also serves as a traveling float, which is equipped with an engine output and swims. In a paddy field weeding machine, the weeding device includes a removable weeding device in addition to a hard-shaped weeding rotor specification, and a soft-shaped weeding rotor specification in addition to a removable weeding device. The auxiliary weeding device uses water or air to add a jet weeding operation in which each is pressurized and discharged by a pump,
It is characterized in that a plurality of discharge ports for spraying are provided on a frame constituting a weeding machine body, each of which can be fixed or movable, and a discharge angle can be freely set.

According to the above construction, in the case of weeding work immediately after rice planting, since the rice plant is still small and the rooting is not complete, the stirring plate of the weeding rotor is attached to the strip with a soft weeding rotor specification for initial weeding. Weeding is carried out, and at the same time, the above-mentioned auxiliary weeding device is used, if necessary, to press the water or air between plants with a pump, and the water is blown out from the discharge port through the conductive pipe. The identification sensor installed in the sensor detects the rice plant, and the free arm interlocking with the rice plant repeats the parallel movement quickly, thereby avoiding the rice plant and vigorously intermittently spraying from the discharge port. When not in use, the auxiliary weeding device can be removed.

In a field where rice is planted in a row between the plants at the time of rice planting as in the case of the rice field, the above-mentioned weeding machine is equipped with a float type weeding mechanism of a narrow type for use between plants by replacing the same. In addition to weeding, inter-strain weeding works with the same weeding machine.

The paddy field weeding machine according to the second aspect of the present invention is characterized in that a replaceable structural material of the weeding rotor section is a soft-shaped weeding rotor specification, and is made of a metal, vinyl, rubber, or other elastic or variable plate. A rod-shaped or chain-shaped one having a plurality of holes in the stirring plate surface is installed in the weeding device in order to buffer water pressure and earth pressure generated when the weeding rotor rotates. Characterized by its herbicidal action.

According to the above configuration, when a stirring plate having a soft-shaped weeding rotor specification is used at the time of initial weeding, the rotation of the weeding rotor is set to a low speed as a standard, and a stirring plate rotating cradle is provided beside the stirring plate. When affected by water pressure and earth pressure, the stirrer plate bends at that point, so that the stirrer plate reliably catches the uneven soil surface and weeds, and at the same time, the stable running action of the float weeding mechanism I will. Further, it acts to buffer unnecessary water pressure and earth pressure from the plurality of holes provided on the stirring plate surface.

When the weeds are to grow to three or more leaves and become hard, the working purpose of the middle weeding or the synergistic effect of the middle weeding, that is, the oxygen supply and the root-cutting purpose, that is, the stimulating effect of tillering by rooting, are required. It is standard to replace the stirrer plate with the specified specifications to perform weeding.

According to a third aspect of the present invention, there is provided a paddy field weeding machine in which a swimming float is formed in an integral shape which also serves to prevent weeding of rice plants by weeding and rotation of a weeding rotor, and a weeding device is provided at a rear portion of the float. Using a plurality of structures in which the weeding device and the agitating rotor mounting part can be adjusted up and down according to the field water level, and using a plurality of frames integrally connected to a frame and a frame spacing adjuster connected in parallel according to the distance between strips and plants. It is characterized by being.

According to the above configuration, when working with a weeding machine, it is standard to work on a field with a water depth of about 5 cm in a water-rich state. Then, the required number of float weeding mechanisms is selected and connected to the frame to perform weeding in an integrated structure.
At the same time, it is provided that a float weeding mechanism can be selected from either between the strips or between the stocks.

According to a fourth aspect of the present invention, there is provided a paddy field weeding machine having a device for performing a weeding operation by receiving a command transmitted from a transmitter by a remote control of a person and receiving the command from the transmitter. In order to maintain the running stability of the float, a plurality of convex running wings are provided at the bottom of the float for swimming.

According to the above construction, the float and the mounting portion of the weeding device can be stably operated by adjusting the mounting portion of the float and the weeding device so that the traveling auxiliary wing at the bottom of the float of the weeding machine body comes into contact with the soil at an appropriate depth.

A paddy field weeding machine according to a fifth aspect is characterized in that a plurality of steerings for adjusting the direction and the speed with respect to the traveling of the weeding machine are provided at an end of the weeding device.

According to the above configuration, the steering installed on the body is
The traveling direction is controlled by receiving a command from the receiver and extending and retracting the resistance bar extending / contracting arm up and down, and the resistance bar connected thereto applies an adjustable resistance to the soil. In addition, a plurality of resistance rods simultaneously act on the soil in a well-balanced manner, thereby controlling the traveling speed of the weeding machine and also controlling the direction.

In the paddy field weeding machine according to the sixth aspect, as a method of turning the headland on the field, cable posts are installed at both corners at both ends of the field, wire cables are installed between the posts, and the suspension is mounted on the weeding machine. The structure is such that the pulley hook is hooked on the ring, and the hoisting and suspending device installed on the upper part of the weeding fuselage can be used to move and turn with the pulley.

According to the above construction, the machine body is lifted and lowered by the suspending operation of the hoisting and suspending device, and the pulley on the wire cable stretched between the columns is slid by human power to move.

[0028]

FIG. 1 is a side view of a paddy weeder according to the present invention. In this paddy field weeding machine, a float 5 for swimming and a plurality of float weeding mechanisms 9 integrally formed with a weeding device 7 at the rear of the float are connected to a frame 2 by a frame spacing adjuster 3, and an engine 4 is mounted on the upper portion of the frame 2. In addition to being mounted, it has a structure including a mission and pump 16, an operation receiver and transmission device 21, a rice identification sensor 20, an auxiliary weeding device 17, and the like. It is an opportunity.

As shown in FIGS. 1 and 2, the weeding machine 1 is driven by an output of an engine 4 mounted on an upper portion of a frame 2 to a transmission and a pump 16 and is driven by a belt from a pulley 14 attached to an output shaft of a mission. 15 drive the weeding rotor 8 constituting the weeding device 7.

As shown in FIGS. 2 and 3, the frame 2 has a float 5 for swimming and a weeding device 7 at the rear of the float.
Float weeding mechanism 9 having an integral structure with frame 2
And the frame interval adjuster 3 are connected in parallel to form a mother set.

The frame spacing adjuster 3 functions to connect the float weeding mechanism 9 by adjusting the spacing of the frames 2 for use between strips and between stocks.

The float 5 is a lightweight buoyant structure made of a lightweight material. As shown in FIGS. 1, 2 and 3, a weeding device 7 provided at the rear of the main part of the running is screwed at two places on both sides. so,
The float weeding mechanism 9 is configured by vertically adjusting the connection in accordance with the water level field conditions and connecting them. In addition, two convex running assist wings 6 are provided below the float 5.

The weeding device 7 has a structure in which the weeding rotor 8 rotates by the transmission of the belt 15, and has a structure in which the weeding rotor portion can be replaced with a hard-shaped weeding rotor specification and a soft-shaped weeding rotor specification, as shown in FIG. The thing is a soft shape weeding rotor specification.

As shown in FIG. 4, a plurality of the stirring plates 10 are alternately attached to the weeding rotor 8. Further, the stirring plate (hole) 12 is formed so as to buffer the water pressure and the earth pressure from the plate surface, and has a structure in which four holes are provided. Further, the stirring plate 10 is moved in the direction of the arrow f.
FIG. 5 shows a shape in which the root portion of the stirring plate (load) 11 is bent at the rotary cradle 13 under the earth pressure of the paddy soil b.

The auxiliary weeding device 17 is driven by the output of the engine 4, and air or water pressurized by the transmission and the pump 16 is injected from the discharge port 19 through the transmission pipe 17.

The rice identification sensor 20 reacts by sensing a rice plant, and the free arm support 18 which operates by air pressure and moves in parallel supports the conductive pipe 17 through which high-pressure air or water passes, and at the same time, the right and left. Movement reciprocation is repeated avoiding the rice plant between the plants, and air or water is injected from the discharge port 19 to cultivate the soil together with the water in the paddy field e.

The operation receiver and transmission 21 shown in FIG. 3 are arranged at the rear of the frame 2 and receive commands from a transmitter (not shown) to adjust the output of the engine 4 and to operate the transmission and pump 16. The output is adjusted, and the steering of the steering 23 shown in FIG. 3 is adjusted.

As shown in FIG. 1, FIG. 3, and FIG. 6, the steering wheel 23 moves up and down by hydraulic pressure when the resistance bar telescopic arm 25 receives the transmission from the driving receiver and the transmission device 21. , The connected resistance bar 24 moves.

The hoisting and suspending device 27 uses the rotational force from the drive shaft of the mission to hoist the built-in wire rope 28 connected to the suspension ring 26 to thereby operate the weeding machine 1.
, And works to move up and down by a manual clutch operation (not shown). As shown in FIG. 8, the built-in wire rope 28 can be freely extended by disengaging the manual clutch, and can be hooked on the hook of the pulley 31.

The pulley 31 shown in FIG. 7 has a structure in which the pulley 31 is hooked on the suspension ring 26 installed on the weeding machine body 1 and moves on the wire cable 30 in the section of the cable support 29.

[0041]

【Example】

FIG. 2 shows the weeding operation of the weeding between the streaks and the weeds between the plants using the weeding machine 1 of the four-row specification when the water level is a in the water-rich state.

FIG. 5 shows that the agitating plate (load) 11 attached to the weeding rotor 8 is moved in the traveling direction f.
The operation of bending from the location of the rotary receiving table 13 under the earth pressure of b is shown.

FIG. 6 shows the steering 23, and shows a state in which the resistance bar 24 connected thereto is affected by the earth pressure of the paddy soil b when the resistance bar telescopic arm 25 moves up and down.
Therefore, while there are two steerings 23, the aircraft performs an operation to face the side where the earth pressure is large.

FIG. 7 shows a field headland turning operation of a paddy weeder having a four-section specification. The above-described turning method is a turning method that uses a weeding machine having five or more specifications as a standard. In the case of the front and rear weeding machines, a lightweight and compact design is sufficiently possible, and in addition to the headland turning method described above, it is possible to cope with headland turning by manual lifting.

[0046]

According to the first aspect of the present invention, the running method using the weeding machine body is a float system without wheels, so that there is no fear of stock removal due to headland turning in the field and lifting of the soil attached to the wheels. In addition, there was no fear of the inability to run due to field roadbed destruction, so that weeding could be repeated about 4 to 6 times in the same field during the weeding period.

Also, as a removable auxiliary weeding device, introduction of spraying weeding utilizing air and water allows simultaneous weeding to work and has the effect of reducing the unprocessed portion of the weeding rotor. Accuracy could be further improved.

Also, by setting up a plurality of float weeding mechanisms for strips and stumps with the same type of weeding machine according to the management scale or the target operation rate, the mounting and setting of the frame adjusting tool of the weeding machine can be simplified. In addition, it is possible to quickly select between weeds and between-plant weeds, and there is no need to have two weeding machines for both between-row and between-stock, and the cost of paddy weeding machines can be reduced.

According to the invention as set forth in claim 2, the use of the soft-shaped weeding rotor specification allows the weeding rotor to be affected by the rotational reaction of the weeding rotor regardless of the depth of water and the hardness of the soil. However, since there is an effect of stable straight running and weeding without being transmitted to the airframe, an unmanned weeding work method by remote control can be easily introduced.

Further, by using a soft-shaped weeding rotor specification for the weeding rotor, a large stirring rotational force is not required, the float and frame structure can be reduced, and the engine output can be reduced. A paddy weeder with a design is created.

The use of a structure having a plurality of holes on the stirring plate surface has an effect of buffering water pressure and earth pressure. Therefore, even a small rice plant which is still small and has insufficient rooting can be used. The impact of burial is small and initial weeding with paddy weeding machines is possible.

According to the third aspect of the present invention, the herbicidal body has an integral structure of a float weeding mechanism, whereby the buoyancy in the field can be improved. At the time of work, there is no ups and downs of the weeding machine, and no pushing soil is generated by the weeding machine, so that initial weeding can be easily introduced.

According to the invention as set forth in claim 4, the traveling auxiliary wing has an important effect of supplementing autonomous traveling due to the unmanned weeding machine body, and performs sufficient weeding by maintaining the straight running stability of the paddy weeding machine. It can be carried out.

According to the fifth aspect of the present invention, by adjusting the steering, by adjusting the steering and the speed of the direction, the weeding operation adapted to the soil condition or the paddy weeding machine adapted to the weed overgrowth situation. The weeding effect was improved.

According to the invention as set forth in claim 6, the weeding machine body is equipped with a traveling weeding part and a turning part that are both compatible.
By simplifying the headland turning in the field, the effect of improving the operation efficiency of the paddy weeding machine is very large, and by releasing the heavy lifting and moving operation of the heavy weeding machine by hand, large area Weeding work is possible, and the scale of management can be greatly expanded.

As described above, the paddy weeder of the present invention makes it possible to spread cultivation based on the organic rice system to general producers.

[Brief description of the drawings]

FIG. 1 is a side view showing a rice paddy weeder of a 4-row specification.

FIG. 2 is a front view showing a rice paddy weeder of a 4-row specification.

FIG. 3 is a plan view showing a rice paddy weeder of a 4-row specification.

FIG. 4 is a perspective view showing a weeding rotor.

FIG. 5 is an embodiment diagram showing a state in which the weeding rotor receives earth pressure.

FIG. 6 is a partial view showing steering.

FIG. 7 is a diagram of a site situation regarding a headland turning in a field.

FIG. 8 is a partial view related to a pulley and a hoisting suspension device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weeding body 2 Frame 3 Frame spacing adjuster 4 Engine 5 Float 6 Auxiliary wing 7 Weeding device 8 Weeding rotor 9 Float weeding mechanism 10 Stirring plate 11 Stirring plate (load) 12 Stirring plate (hole) 13 Rotating pedestal 14 Drive pulley Reference Signs List 15 conduction belt 16 transmission and pump 17 auxiliary weeding device 18 universal arm support 19 discharge port 20 rice identification sensor 21 operation receiver and transmission device 22 conduction pipe 23 steering 24 resistance rod 25 resistance rod telescopic arm 26 suspension ring 27 hoisting suspension 28 Built-in wire rope 29 Cable prop 30 Wire cable 31 Pulley a Water level b Paddy soil c Rice plant d Field headland e Paddy field f Traveling direction

Claims (6)

[Claims] 1. A paddy field weeding machine comprising an engine mounted on a weeding machine body and a weeding device that also serves as a running float that receives an engine output and swims. In addition to the hard-shaped weeding rotor specification for the rotor unit, a soft-shaped weeding rotor specification is added and the structure is replaceable, and the detachable auxiliary weeding device is also provided. The auxiliary weeding device uses water or air. , Each of which adds injection weeding to be pressurized and discharged by a pump, and has a plurality of discharge outlets for injection, which are installed on a frame constituting a weeding machine body, each of which can be fixed or movable,
The paddy field weeding machine is characterized by a variable discharge angle. 2. The replaceable structural material of the weeding rotor section is a soft weeding rotor specification, such as metal, vinyl, rubber, or other elastic or variable plate-like, rod-like, or chain-like shapes. Any one having a plurality of holes in the stirring plate surface in the weeding device for buffering water pressure and earth pressure generated during rotation of the weeding rotor, and having a weeding action. Paddy weeding machine. 3. A swimming float is formed into an integral shape which also serves to prevent weeding by rotation of a weeding rotor and grass weeding of a rice plant, and a weeding device is arranged at the rear of the float, and the weeding device and stirring are performed according to the field water level. It is characterized in that a plurality of rotor mounting parts having a structure that can be adjusted up and down are used, and are integrally connected to a frame by a frame interval adjusting tool in parallel according to a strip and a stock. Paddy weeding machine. 4. A device mounted on a weeding machine that receives a command transmitted from a transmitter by remote control of a person and is equipped with a device for performing weeding work, so as to maintain unmanned running stability. A paddy field weeder, characterized in that a plurality of running auxiliary wings are provided at the bottom of the float for swimming. 5. A paddy field weeding machine comprising: a plurality of steerings for adjusting a direction and a speed with respect to traveling of the weeding body; 6. As a method of turning a headland on a field, a cable support is installed at both corners of both ends of a field, a wire cable is installed between the supports, and a pulley using a hoisting and suspending device installed on a weeding fuselage is used. Paddy field weeding machine characterized by a structure that can move and turn.