JP2002084813A - Paddy field weeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paddy field weeder enabling proper and repeated weeding operations from the early stage of rice transplanting activity. SOLUTION: This paddy field weeder has such a construction and scheme that weeding devices 10 are set up respectively between a floating center float 8 and two side floats 9, a plurality of float weeding mechanisms 14 integrally constructed with a weeder body frame 7 are put to distance adjustment fixation through a machine body connective frame 6, and an engine is mounted on the machine body connective frame 6 so as to effect power transmission to afford interrow weeding; furthermore there is provided a detachable auxiliary weeding device 18 and water or air is pressurized and issued by the action of a transmission and a pump 3 to effect jet weeding between stocks; besides, there is equipped an auxiliary travel lift mechanism 27 to conduct a farming field butt movement conversion.

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 precondition that pesticides and chemical fertilizers are continuously used without the use of herbicides and chemical fertilizers for a period of three years or more. Unlike ordinary cultivation fields that use fertilizers, weeds are extremely vigorous, and the conventional method of stirring, inverting, and burying germinated weeds re-grows several days later, and the herbicidal effect of paddy weeding machines is not high. It was enough.

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 the rice planting, which has not yet been scraped, the sedimentation and hardening of the surface soil has not yet progressed. If weeding is carried out at the initial stage, mud (soft soil) tends to flow into the bottom of the planing boat during running, and the condition of floating and sinking Burying surrounding rice plants under the influence of pressing soil.

[0007] The above-mentioned power type for walking requires the human to walk on the muddy paddy soil for a long time and a long distance by the driving force of the person, and also to lift and move the aircraft at the time of turning the headland on the field. Is very heavy and requires very heavy labor. 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.

[0008] In the riding type traveling specification, a narrow wheel is required for traveling in a space between rice streaks at the time of work. At the same time, the operation becomes impossible and the straightness is lost, 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 tramples on the rice plant at the time of turning, and the occurrence of missing plants increases, resulting in a decrease in sales. To do.

[0009] Generally, paddy field weeding machines which are commercially available are mainly used for weeding between strips, and the weeding between plants using the above-mentioned rotary shaft rotor is immature unless the rice plant grows to 7 to 8 leaves. There is a risk that the rice plant may be entangled in the vertical rotating rotor and be buried, and generally cannot be used much for initial 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. By taking part, the total number of days required for human weeding per 10 ares depends on the degree of weed growth, but 3-4 days for 3-4 leaf growth,
About 5 to 6 leaves require about one week.

The degree of growth of weeds after rice transplanting without using herbicides (excluding the effect of controlling weed germination by deepwater management and application of undecomposed organic matter) depends on regional differences, but the sustainability of organic rice cultivation for more than 3 years In the rice field, weeds grow around 2 leaves 1 to 2 weeks after planting, and around 3 to 5 leaves 3 to 4 weeks, 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 soft weeding rotor specification for initial weeding, and the strip is installed. Weeding is carried out, and at the same time, the above-mentioned auxiliary weeding device is used, if necessary, with water or air being pressurized by a pump, which is jetted from a discharge port through a conductive pipe. The identification sensor installed in the system 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 the field where rice was planted between the stocks at the time of rice planting in the same manner as in the case of the streaks, the weeding machine was replaced with a float weeding mechanism of a narrow type for use between plants and equipped with a weeding machine frame. In addition to inter-row weeding, between-strain weeding also 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. Rod-shaped and chain-shaped. Further, a paddy field weeding machine characterized in that any one having a plurality of holes in the stirring plate surface is installed in the weeding device to perform a weeding 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. The standard practice is to replace the stir plate with the specified specifications and perform weeding work.

A paddy field weeding machine according to a third aspect of the present invention is a float weeding mechanism having a structure in which a weeding device is provided on a swimming float, and the mounting portion of the weeding device and the stirring rotor can be adjusted up and down by a weeding rotor adjusting screw depending on the field water level. The paddy field weeding machine is characterized in that it is constituted by a plurality of body-connecting frames in parallel with each other between streaks and stocks on a weeding machine frame integrally formed by using a plurality of weeds.

According to the above configuration, when weeding is performed,
It is the standard to work floating on a field with a water depth of about 5 cm, and the required number of float weeding mechanisms is selected according to the target operation rate or management scale of weeding work, and the aircraft connection frame and Make up and work on weeding. At the same time, it is provided that the float weeding mechanism can be selected for either between the strips or between the stocks.

A paddy field weeding machine according to a fourth aspect of the present invention is provided with 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 a transmitter mounted on the body of the weeding machine. It is characterized in that a plurality of convex running assist wings are provided at the bottom of the float.

According to the above construction, the mounting part of the weeding device is adjusted up and down with the weeding rotor adjusting screw so that the traveling auxiliary wing at the bottom of the float of the weeding mechanism contacts the soil at an appropriate depth. Runs.

The paddy field weeding machine according to the fifth aspect is characterized in that a plurality of steerings for adjusting the direction and speed of the running of the weeding machine are provided at both ends of the weeding machine or at the bottom of the float.

According to the above configuration, the steering installed on the body is
By receiving a command from the receiver and adjusting the steering telescopic arm up and down, a traveling direction is controlled by applying an adjustable resistance to the soil. In addition, a plurality of steerings are simultaneously applied to the soil in a well-balanced manner, thereby controlling the traveling speed of the weeding body and also controlling the direction.

In the paddy field weeding machine according to the sixth aspect, an auxiliary running lifting mechanism is connected to the weeding body so as to be able to move up and down, and the autonomous running movement is performed by a crawler or wheels, and its legs are extended, shortened, and folded and rotatable. A paddy field weeding machine characterized by a structure that allows the weeding machine to be lifted and moved to a headland in a field by operation.

According to the above construction, the traveling leg folding rotating portion of the auxiliary traveling lifting mechanism is rotated to extend the traveling leg extending / contracting arm perpendicular to the paddy field and ground on the field ground to support the auxiliary traveling lifting mechanism and the weeding machine. After climbing the connected frame by the lifting and lowering adjustment transmission, drive the crawler or wheels to traverse and move between adjacent streaks or stocks, immediately descend the weeding body in the reverse procedure, and then run After shortening the leg-folding rotating part and isolating it from the paddy field, the running leg is rotated and stored, and the weeding rotor is rotated in the reverse direction to the previous direction to advance, and the weeding operation is continuously repeated.

[0028]

FIG. 1 is a side view showing a weeding machine, which is a paddy field weeding machine according to the present invention, and a storage of traveling legs of an auxiliary traveling lifting mechanism. The weeding machine 1 is provided with two weeding devices 10 between the center float 8 and the side floats 9 for swimming, and a plurality of float weeding mechanisms 14 formed integrally with the weeding machine frame 7 are spaced by the body connecting frame 6. In addition to adjusting and fixing, the engine 2 is mounted on the upper part of the body connection frame 6, the transmission and the pump 3, the operation receiver and the transmission 5, the steering 24, the auxiliary weeding device 18, the auxiliary traveling lifting mechanism 27 and the like are configured. This weeding machine 1 is a paddy weeding machine with a seven-section specification.

As shown in FIGS. 1, 2, 3, 4, and 5, the engine 2 is mounted at the upper center of the body connection frame 6, and the transmission pulley 4 is driven by the transmission belt by the output of the engine 2. , Transmission and transmission 3 and transmission and transmission 5.

The mission and the pump 3 function to transmit the weeding device 10, send compressed air to the auxiliary weeding device 18, move the universal arm support 19, and transmit the auxiliary traveling lifting mechanism 27.

The operation receiver and transmission device 5 are arranged at the center of the body connection frame and at the rear of the transmission and pump 3.
In response to a command from a transmitter (not shown), the output of the engine 2 and the power of the transmission and the pump 3 are adjusted, and the steering of the steering 24 shown in FIG. 8 is adjusted.

The body connecting frame 6 is shown in FIGS.
, The engine 2, the transmission and the pump 3,
A float mounting wedging mechanism 14, which is a unit on which the operation receiver and the transmission device 5 are mounted, is integrally formed, is connected in parallel by adjusting the spacing between the strips and the stocks, and forms a mother set.

The weeding machine frame 7 is shown in FIGS.
As shown in (1), a float weeding mechanism 14, which comprises a swimming center float 8, a side float 9, and a weeding device 10 in an integrated structure, is supported.

The center float 8, as shown in FIGS. 1, 2, and 7, is a structural buoyant body made of a lightweight material and is a main part of traveling, and constitutes a float weeding mechanism 14. In addition, two convex running assist wings 23 are provided at the lower part.

As shown in FIGS. 1, 2 and 8, the side float 9 is a structural buoyant body made of a lightweight material and is a main part of traveling and constitutes a float weeding mechanism 14, and has a front part and a rear part. Be deployed. Further, steering is built in and provided below the side float 9 as necessary.

The weeding device 10 has a structure in which the weeding rotor 12 rotates by the transmission of the weeding rotor drive pulley and the belt 11, 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. The thing shown in FIG. 6 is a soft-shaped weeding rotor specification.

The stirring plate 15 shown in FIG.
A plurality of them are alternately attached to the weeding rotor 12. In addition, it is formed so that water pressure and earth pressure are buffered from the plate surface,
The stirring plate (hole) 17 has a structure provided with a plurality of holes. The stirring plate 15 receives the earth pressure of the paddy soil a in the case of the arrow traveling direction b, and shows a state in which the stirring plate bends from the root portion of the stirring plate rotation receiving base 16 in the stirring plate bending direction c.
FIG. 6 shows a shape in which the stirring plate is bent in the bending direction e as in the case of the arrow traveling direction d.

In the auxiliary weeding device 18 shown in FIGS. 1, 3, 4 and 5, etc., air or water pressurized by the transmission and the pump 3 is supported by a universal arm support 19. The water is sprayed from the discharge port 21 through the conduction pipe 20 and the soil is produced together with the water in the paddy field.

The rice identification sensor 22 reacts by sensing a rice plant, and the free arm support 19, which operates by air pressure and moves in parallel, supports the conductive pipe 20 through which high-pressure air or water passes. Repeat the reciprocating movement avoiding the rice plant between plants.

As shown in FIG. 1, FIG. 2, FIG. 3, and FIG. 8, the steering telescopic arm 25 receives transmission from the driving receiver and the transmission device 5 and receives hydraulic pressure (not shown). In this structure, the cylinder 26 moves up and down, and the connected steering wheel 24 moves. In addition, the steering 24 is integrated with the side float 9 and is disposed at the front and rear of the fuselage. Therefore, when working, the front side steering 24 of the side float 9 is closed with respect to the traveling direction, and the rear of the side float 9 is closed. The side steering 24 is opened for operation.

The auxiliary traveling lifting mechanism 27 is shown in FIG.
As shown in FIGS. 2, 3 and 4, the extension and storage of the traveling leg folding rotating unit 30 and the traveling leg telescopic arm 29 are performed manually, and the auxiliary traveling crawler 28 is provided with a transmission and a pump (not shown). 3 is a structure for driving and receiving a power supply.

Each of the worm gear 31, bevel gear 32 and rack & pinion gear 33 shown in FIGS. 1, 2, 3, 4 and 5 conducts power transmission from the transmission and the pump 3, The auxiliary traveling lifting mechanism 27
And the function of conducting the power of the weeding machine 1 and adjusting the vertical movement.

[0043]

【Example】

FIG. 1 shows a state in which the traveling legs of the weeding machine body 1 and the auxiliary traveling lifting mechanism 27 during the weeding operation are stored.

FIG. 2 shows the state of the auxiliary traveling lifting mechanism 27 at the time of headland conversion in a paddy field.

FIG. 6 shows a state where a work load is applied to the paddy soil a when the stirring plate 15 attached to the weeding rotor 12 is in the direction of arrow b or d, respectively.

FIG. 8 shows the steering 24, and shows the states of the front and rear steering 24 in the direction of arrow b. The more the steering telescopic arm 25 is extended, the more the earth pressure is increased or decreased, and the aircraft is directed toward that direction.

[0048]

According to the invention as set forth in claim 1, the running method using the weeding machine body is a float system without wheels, so that the stock removal due to the lifting and dropping of the soil attached to the wheels during the work traveling does not occur, and During the weeding period, weeding can be repeated about 4 to 6 times in the same field because there is no fear of the inability to run due to the field roadbed destruction.

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

Further, by preparing a plurality of float weeding mechanisms for strips and stocks with the same type of weeding machine in accordance with the management scale or the target operation rate, the setting of the body connection frame of the weeding machine can be simplified and It is possible to quickly select between weeds and between-plant weeds, and it is not necessary to have two weeding machines for both between-row and between-stock, reducing the cost of paddy weeding machines.

According to the second aspect of the present invention, by adopting a soft-shaped weeding rotor specification, the water pressure and the earth pressure generated when the weeding rotor is rotated can be buffered, and the water depth and the soil hardness can be reduced. Irrespective of the condition and the effect of the rotation reaction by the weeding rotor is not transmitted to the machine body even in the uneven state of the soil, there is an effect of stable straight running and weeding, so that an unmanned weeding work method by remote control can be easily introduced.

Also, by using a soft-shaped weeding rotor specification for the weeding rotor, it is possible to reduce the float and the frame structure and the effect of reducing the engine output without the need for a large agitation torque. A paddy weeder with a design is created

The use of a structure having a plurality of holes on the stirring plate surface has the effect of buffering water pressure and earth pressure. 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 weeding machine is provided with an integrated float weeding mechanism to prevent weeding of the rice plant and entrainment of the rice plant due to rotation of the weeding rotor, and also to increase the buoyancy in the field. It is easy to introduce the initial weeding because there is no ups and downs of the weeding machine during the weeding work in which the soil has not yet settled and hardened immediately after the rice planting, and there is no generation of pushing soil by the weeding machine.

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 ensures 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, 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 float weeding mechanism and the auxiliary traveling lifting mechanism which constitute the weeding machine are integrally provided, and the conversion of the headland to the field is simplified, so that the paddy field weeding is simplified. The effect of improving the operation efficiency of the machine is very large, and by removing the labor of lifting and moving the heavy weeding machine manually, weeding work of a large area can be done, and a large amount based on the organic rice system Management scale can be expanded.

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

[Brief description of the drawings]

FIG. 1 is a side view showing storage of a traveling leg of a weeding body and an auxiliary traveling lifting mechanism.

FIG. 2 is a side view showing the crawler traveling of the weeding machine body and the auxiliary traveling lifting mechanism.

FIG. 3 is a front view showing a paddy weeder of a 7-row specification.

FIG. 4 is a plan view showing a paddy field weeding machine with a seven-row specification.

FIG. 5 is a partial view of a transmission device.

FIG. 6 is a partial detailed view showing a work load state of the weeding rotor.

FIG. 7 is a partial detailed view of a float and an auxiliary traveling wing.

FIG. 8 is a partial view showing front and rear steering built in the side float.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Weeding body 2 Engine 3 Transmission and pump 4 Mission pulley 5 Driving receiver and transmission device 6 Airframe connection frame 7 Weeding body frame 8 Center float 9 Side float 10 Weeding apparatus 11 Weeding rotor drive pulley and belt 12 Weeding rotor 13 Weeding rotor adjustment Screw 14 Float weeding mechanism 15 Stirring plate 16 Stirring plate rotation cradle 17 Stirring plate (hole) 18 Auxiliary weeding device 19 Flexible arm support 20 Conductive pipe 21 Discharge port 22 Rice identification sensor 23 Traveling auxiliary wing 24 Steering 25 Steering telescopic arm 26 Hydraulic cylinder 27 auxiliary traveling lifting mechanism 28 traveling crawler 29 traveling leg telescopic arm 30 traveling leg folding rotating part 31 worm gear 32 bevel gear 33 rack & pinion gear a paddy soil b arrow traveling direction c stirring Plate bending direction d arrow traveling direction e stir plate bending direction f level

 ────────────────────────────────────────────────── ─── Continued on the front page F term (reference) 2B034 AA07 BA01 BA02 BA05 BA07 BB01 BB08 BC03 BE05 HA16 HB14 2B041 AA08 AB03 AC07 BA02 2B043 AA03 AB17 BA07 BB07 DB30 DC01

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. Stuff. Further, a paddy field weeding machine characterized in that any one having a plurality of holes in the stirring plate surface is installed in the weeding device to perform a weeding action. 3. A weeding device is provided on a float for swimming, and the weeding device and the agitating rotor mounting portion are integrally configured using a plurality of float weeding mechanisms having a structure that can be adjusted up and down by a weeding rotor adjusting screw according to the field water level. A paddy weeder comprising: a body connecting frame in parallel with a weeding machine frame according to a row and a stock. 4. A receiver mounted on a weeding body receives a command transmitted from a transmitter by remote control of a person, and is equipped with a device for weeding work. Paddy field weeding machine characterized by a structure provided with a plurality of driving assist wings. 5. A paddy field weeding machine characterized in that a plurality of steerings for adjusting the direction and speed with respect to traveling of the weeding body are provided at both ends of the weeding body or at the bottom of the float. 6. An auxiliary traveling lifting mechanism is connected to the weeding machine so as to be able to move up and down, and the autonomous traveling movement is performed by a crawler or a wheel, and its legs are extended, shortened, and folded. Paddy field weeding machine characterized by a structure that allows headland transfer.