JP2008099575A - Furrow opener also working as paddy weeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new agricultural machine designed to be usable both in weeding and furrow-opening activities in a farm, through detachably and appropriately mounting a weeding mechanism and a furrow opening mechanism to the traveling apparatus according to the purpose of service. <P>SOLUTION: The new furrow opener also working as a paddy weeder 1 includes a traveling apparatus 2 in which a self-traveling wheel 4 is pivotedly attached to an appropriate position on the front end side of the main frame 3, steering bars 5 and 5 are provided at appropriate positions above the wheel 4, and a driving source 6 for the wheel 4 is provided on the rear end side of the main frame 3. In the traveling apparatus 2, a bracket 31 for weeding mechanism attachment provided near the self-traveling wheel 4 pivotedly attached part is detachably provided, via connective arms 8 and 8, with a weeding mechanism 7 having a horizontal rod 71 arranged with downward weeding agitating blades 76 on respective rows ranging over the multiple seedling rows, and another bracket 33 for furrow-opening mechanism attachment provided at an appropriate position midway of the main frame 3 is detachably provided, via a connective arm 92 extended upward from the end side, with a boat-tip-shaped furrow-opening mechanism 9. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

    The present invention has all fields related to agricultural machinery as its technical field, and is necessary not only for the field of manufacturing weeding machines and grooving machines for paddy fields, but also for their production and use. From the field of providing and selling equipment and appliances, the field of providing materials, machinery, and parts necessary for materials, such as wood, stone, various fibers, plastic, various metal materials, etc. General fields such as the field of electronic components and control-related equipment that integrates them, the field of various measuring instruments, the field of power equipment that moves the equipment and instruments, the field of electricity and energy that are energy sources, and the field of oil Fields generally referred to as industrial machinery, and further, testing and researching those facilities and equipment, fields related to display, sales, import / export, Assumed at the present time, other than the fields related to the collection and transportation of waste debris generated by the operation of the results of use, the equipment for making it, and the equipment, and the recycling field where these waste debris can be reused efficiently There is no technical field that is not related to new fields that cannot be done.

(Points of interest)
Along with the farming season such as rice planting and harvesting for rice farmers, weeding of weeds such as cocoons generated in paddy fields, water supply and drainage, and water management are smooth and uniform throughout the field. Irrigation for irrigation, etc. that can be carried out in a short time, neglecting such steady work will greatly reduce the yield and deteriorate the quality of the harvested rice. In particular, it is necessary to remove each weed one by one by hand and cut the groove on the soil surface using a paddle or other self-made grooving tools. It was a burdensome work for farmers.

(Conventional technology)
Therefore, as a measure to overcome the problem, for example, as disclosed in Japanese Patent Application Laid-Open No. 2001-178202 “Groove Cutting Field”, a groove forming portion is provided. In the groove cutting blade for agricultural fields, which is advanced while being partially buried in the ground, and forms a groove corresponding to the cross-sectional profile of the groove forming portion, the overhanging portion of the groove formed by the groove forming portion is Along with the formation, the soil discharged to the surface part on both sides of the groove is diffused outward in the left-right direction, and pressed from above to suppress the formation of the raised part, so that A grooving blade for agricultural fields that is projected outward in the direction and formed by integral molding with the groove forming part is mounted on a single-wheeled self-propelled vehicle, and buried in the soil as the single-wheeled self-propelled vehicle travels. As the part moves forward in the soil, a groove is formed in the soil It has been proposed those.

    Furthermore, as in the “weeding device and rotary weeding mechanism” invention disclosed in Japanese Patent Application Laid-Open No. 2002-204603, a self-propelled part that self-propels by rotating a wheel by driving a drive source, and the self-propelled part A rotary weeding mechanism provided on the front side and provided with a plurality of wing plate portions radially on the outer periphery of a rotation base portion that is pivotally supported so as to rotate in an inclined state with respect to the soil surface. The scraped surface side is formed in a concave shape, and the lower piece of the slat is formed in a convex shape so as to be in contact with the soil surface, and the lower side portion is grounded to the soil surface. And a weeding part having a rotating weeding mechanism configured to rotate and rotate the rotating base part and stir and scrape the soil with the slats, and perform the weeding work by the weeding part while the self-running part is self-propelled. A weeding device to perform, tow the self-propelled part to the rear side of the self-propelled part In this way, the weeding device provided with a riding part, the rotary weeding mechanism cuts the roots of the weeds, digs up the weeds from the roots, stirs the weeds with the soil, and performs reliable weeding, and the worker stands on the riding part Therefore, it is not necessary to walk in accordance with the traveling of the self-propelled portion, and the labor burden can be reduced or realized, or disclosed in the "paddy field weeding machine" invention of JP-A-2006-6240 The inter-plant weeding mechanism for weeding between the planted seedlings is mounted on the traveling aircraft, and the inter-strain weeding mechanism is provided with a plate blade radially provided on a rotating shaft having a slope that is spaced downward from above the planted seedling. It is equipped with a non-driven rotor blade that rotates by ground resistance between the stocks, and the inter-weed weeding mechanism is for paddy fields that are attached to the traveling machine body through an intrusion amount adjusting mechanism that adjusts the intrusion amount of the rotor blades between stocks. Installation position like a weeder The leveling mechanism adjusts the amount of intrusion between the rotor blades of the interstitial weeding mechanism in response to the varieties and growth conditions of the planted seedlings, and prevents the rotating rotor blades from contacting the stems of the planted seedlings, etc. For this reason, there are some cases where an effect of preventing damage to the planted seedlings by weeding work is obtained.

However, each of the inventions disclosed in these “field grooved blades”, “weeding device and rotary weeding mechanism” and “paddy field weeding machine” employs single-wheeled or two-wheeled self-propelled vehicles. Nevertheless, it is used exclusively for either grooving machines for fields or as weeding machines for fields, and rice farmers prepare both machines. In addition, a large amount of money is required, and the frequency of their use remains at most several times throughout the year. Each storage location is indispensable, and maintenance and management must be performed for each individual machine. In other words, it had the major drawback of increasing the burden on farmers.
(1) Japanese Patent Laid-Open No. 2001-178202 (2) Japanese Patent Laid-Open No. 2002-204603 (3) Japanese Patent Laid-Open No. 2006-6240

(Awareness of problems)
As described above, the previously proposed “groove grooving blade” has a predetermined angle on a stay suspended at a suitable position in the middle of the transmission shaft pipe that connects the engine and wheels of a single-wheeled self-propelled vehicle. The single-wheel self-propelled vehicle is basically used exclusively for grooving in the field, and the following “weeding device and rotary weeding mechanism” In this case, a weeding part with a rotating weeding mechanism is provided in front of the left and right two-wheeled self-propelled part equipped with a drive source, and the riding part is connected to the rear of the self-propelled part so as to pull the paddy field. The latter “paddy weeder” is used exclusively for work, and the driving handle is extended to the rear upper part of the single-wheeled self-propelled aircraft with the engine mounted on the front upper part. The inter-weeding mechanism was established in the It is exclusively for weeding work, and it cannot be used for any other purpose. It abandons the purchase of these machines because of the economic burden and returns to work that relies on human resources as before. Or a self-propelled vehicle dedicated to grooving for the field and a self-propelled weeder can be selected individually, and if it is purchased to reduce labor, For rice farmers who have introduced various agricultural machines such as rice transplanters, tractors, and combine harvesters, this has caused a problem of further increasing the economic burden.

(Object of invention)
Therefore, the present invention attaches a weeding device and a grooving device to a single self-propelled traveling device in accordance with the purpose of use, so that it can be used as both a weeding operation and a grooving operation in a field. Judging whether it is possible to develop a new agricultural machine that can be made possible, we started development and research very quickly, and repeated trial and error over many years and many trials and experiments, this time finally new The present invention succeeds in realizing a rice field weeding and grooving machine having a simple structure, and the configuration thereof will be described in detail below together with an embodiment representing the present invention shown in the drawings.

(Structure of the invention)
As can be clearly understood from the embodiments representing the present invention shown in the drawings, the paddy weed and grooving machine of the present invention basically has the following configuration.
That is, a self-propelled wheel having an axial center oriented in the horizontal direction is attached to the front end of the main body frame, which is inclined upward from the front in the traveling direction to the rear in the traveling direction. A steering handle is provided at one of the appropriate positions, either midway or rear end, and a driving force transmission mechanism to the self-propelled wheel is provided at the other appropriate position, either rear end or midway. It consists of a traveling device provided with a drive source having a self-propelled wheel of the main body frame, a bracket for attaching a weeding device in the vicinity of the shaft attachment portion, and the bracket for mounting the weeding device straddling a plurality of shoots, A weeding device having a horizontal rod with a downward weeding blade for each weed between each strip is detachably mounted via a connecting arm extending backward from the center to the middle, and the midway of the main body frame is Grooving in the right place A grooving device provided with a mounting bracket, the grooving device mounting bracket having a hook-shaped outer shape, and having a grooving bottom portion that is inserted into the field ground behind the self-propelled wheel. However, this is a paddy weeding and grooving machine having a configuration in which the tip is detachably mounted via a connecting arm extending upward from the end.

    In other words, a self-propelled wheel having an axial center oriented in the horizontal direction is attached to the front end of the main body frame that is inclined upward from the front in the traveling direction to the rear in the traveling direction. In addition, a steering handle is provided at an appropriate position in either the middle or the rear end of the same, and the driving force to the self-propelled wheel in the other proper position of the rear end or the intermediate end. It consists of a traveling device provided with a drive source having a transmission mechanism, a self-propelled wheel of the main body frame, a bracket for attaching a weeding device in the vicinity of the axially attached portion, and a bracket for mounting the weeding device in a plurality of shoots A weeding device having a horizontal rod with a weeding blade for herbicidal downward facing each of the strips is detachably mounted via a connecting arm extending backward from the vicinity of the center of the main frame. Halfway A grooving device mounting bracket is provided at the location, and the grooving device mounting bracket has a tip-shaped outer shape, and has a grooving bottom portion that is inserted into the field ground behind the self-propelled wheel. The grooving device is detachably mounted via a connecting arm whose tip extends upward from the end. During the weeding operation, the grooving device is detached from the grooving device mounting bracket. The paddy field weeding and grooving machine has a configuration in which the weeding device can be used by being removed from the weeding device mounting bracket.

    When the paddy weed and grooving machine according to the present invention having the above-described basic configuration is shown as a more specific one, a pipe-shaped main body frame that is inclined upward from the front in the traveling direction to the rear in the traveling direction A self-propelled wheel with an axial center pointed horizontally on the left and right is mounted on the right end of the wing, and left and right steering handles are installed in the middle of the wing. The driving force transmission mechanism to the self-propelled wheels is made up of a traveling device provided with a drive source arranged in the pipe-shaped main body frame, and the weeding device mounting bracket is located near the self-propelled wheels and the axially attached portion of the main body frame. The weeding device mounting bracket is provided with a weeding device having a horizontal rod having a weeding blade for downward weeding across each of the shoots. Connecting door extending backward from A grooving device mounting bracket is provided at an appropriate position in the middle of the main body frame, and the grooving device mounting bracket has a pointed outer shape and is self-propelled. Paddy field weeding, in which a grooving device having a grooving bottom that is pierced into the field ground behind the wheels for use is detachably mounted through a connecting arm extending upward from the end It can be called a dual-purpose grooving machine.

    As described above, according to the paddy field weeding and grooving machine of the present invention, the front end of the main body frame that is inclined upward from the front in the traveling direction toward the rear in the traveling direction is directed to the right and left horizontal directions at the right position. A self-propelled wheel with a fixed axis is attached to the wheel, and a steering handle is provided at one of the appropriate positions on the middle or rear end, either on the middle or on the middle. It consists of a traveling device provided with a drive source having a driving force transmission mechanism to the self-propelled wheel at the other appropriate position, and provided with a weeding device mounting bracket in the vicinity of the self-propelled wheel and the axially attached portion of the main body frame, and The weeding device mounting bracket has a weeding device that has a horizontal rod that spans between several shoots and has a downward weeding stirring blade between each row, and a connecting arm that extends backward from the vicinity of the center. Detachable through A groove mounting device mounting bracket is provided at an appropriate position in the middle of the main body frame, and the groove mounting device mounting bracket has a hook-shaped outer shape and is located behind the self-propelled wheel. Since the grooving device having the grooving bottom portion that is pierced into the detachable attachment through the connecting arm extending upward from the end, one traveling device, In addition to being used as a weeding machine for paddy fields, it can also be used as a grooving machine for paddy fields, making it possible to realize rice farming that is much more economical than conventional cases where each dedicated machine was purchased. In the past, it required storage space for two traveling devices, but it can be stored in a space equivalent to one traveling device, and maintenance and inspection can be performed for one unit. stop Bets can be, in which Su features is obtained that the labor burden of the farmers can be greatly reduced.

    In addition, the paddy weed combined grooving machine has a shaft oriented in the horizontal direction at the front end of the pipe-shaped body frame that is inclined upward from the front in the traveling direction to the rear in the traveling direction. A self-propelled wheel with a heart is attached to the shaft, left and right steering handles are installed in the middle of the middle of the wing, and a driving force transmission mechanism for the self-propelled wheel is installed in the pipe at the rear end of the middle. It is made up of a traveling device with a drive source arranged in the main body frame, and the main body frame can be reduced in weight and the driving force can be reduced to realize a smaller and lighter drive source and the entire traveling device. The drive source and the drive force transmission mechanism are provided at appropriate locations in the middle of the main body frame, the self-propelled wheels of the main body frame, the bracket for attaching the weeding device detachably provided near the shaft attachment portion, and the main body frame. Grooved device mounting Bracket mounting and placement are prevented from becoming an obstacle, the structure is prevented from becoming complicated, and it has a relatively simple mechanism. It is compact and lightweight, and is easy to handle during weeding, grooving work and transportation work to the field. It is possible to improve the durability, strength, and the effect of extending the service life with few failures and making the agricultural machine excellent in economic efficiency.

    Furthermore, the weeding device has a tip facing upwards and a rear end facing downwards through legs that can be set to a height exceeding the seedling height at each of the locations corresponding to each shoot of the horizontal ridge. A slightly bent guide rod is provided, and a downward weeding stirring blade and / or a wheel blade that can automatically rotate by receiving a resistance force due to grounding are set behind each leg. It is possible to control the grounding state of the weeding blade and / or the wheel blade for weeding by operating the steering handle so that the guide rod is grounded, and it is possible to realize simple and reliable weeding work. Benefits are gained.

    A weeding device is attached to each part corresponding to each shoot of the horizontal paddle with a leg that can be set to a height exceeding the seedling height, with the tip slightly facing upward and the trailing edge slightly facing downward. In the left-right direction, the thickness direction is substantially perpendicular to the traveling direction so that the bottom of the field including the left and right edges or its surroundings can be inserted into the field ground and the left-right deflection can be controlled. A guide rod having a straight guide blade directed downward is provided, and behind each leg is a downward weeding stirring blade and / or a wheel blade that can automatically rotate under the resistance of the ground. In the case where it is appropriately arranged and is supported so that the height can be adjusted substantially at an appropriate position on the horizontal rod, the straight guide blades provided on the bottom surface of each guide rod guide the weeding device in a straight line. Easy and stable driving even when a beginner steers It can be, advantageously herbicidal stirring blade or wheel blades can be reliably prevented from being damaged by contact with the rice comes out.

    The weeding device forms its connecting arm in a pair of upper and lower parallel links set to a predetermined length, and the upper and lower parts within the predetermined range of the horizontal rod are between the bracket for mounting the weeding device and the vicinity of the center of the horizontal rod. In the case where an impact absorbing mechanism that allows movement is formed, the weeding blades and wheel blades for weeding can follow the unevenness of the ground of the field to enable more reliable weeding. There is no need to move the steering handle up and down in accordance with the unevenness of the ground, and it is possible to realize a lighter driving operation and reduce the labor burden on the worker.

In implementing the present invention having the configuration as described above, the best or desirable mode will be described.
The traveling device uses a self-propelled wheel whose front end of the main body frame is pivotally attached to a proper position to drive the paddy field by a drive source provided at an appropriate position, either the rear end of the main body frame or midway. It is possible to generate a driving force so that it can run and to rotate the self-propelled wheel accordingly, and turn right or left by the steering handle provided at the appropriate position on the middle or rear end of the body frame. And the rear end of the body frame performs the function of allowing the vertical movement of the wrinkles, and forms the main body of the paddy weeding and grooving machine according to the present invention. Equipment mounting brackets must be provided so that weeding equipment and grooving equipment can be detachably attached to their appropriate locations, making them as small, light and durable as possible. And the Ki, when the operator grips the steering handle, it is desirable to those of the easily set to maintain a good balance.

    The main body frame is supported by the self-propelled wheels so that it can run freely, can change direction upon receiving steering force from the steering handle, supports the drive source, and attaches the weeding device mounting bracket and the grooving device mounting bracket to them. It is placed in the right place and functions so that the weeding device and the grooving device can be detachably mounted at appropriate positions. The driving operation is supported by the driving source and the steering handle, and the weeding device and the grooving device are mounted. As shown in the examples to be described later, it is formed in a pipe shape having an upwardly inclined posture from the front in the traveling direction to the rear in the traveling direction, as shown in the examples described later. In addition, a built-in driving force transmission mechanism that connects a self-propelled wheel that is axially attached to the front end and a drive source that is provided at an appropriate position, either the rear end or midway. It is possible to things.

    The self-propelled wheel has a function that enables a traveling device equipped with a weeding device and a grooving device to be able to self-propelled without sinking in the paddy field, and to drive forward lightly. It should be set to such an extent that it does not sink into the ground, and it should have a plurality of scraping wings that can run in the mud along the periphery of the wheel, as shown in the examples described later Thus, from the viewpoint of weight reduction, it is desirable that only one wheel is arranged on either side of the main body frame.

    The steering handle is gripped by an operator located behind the traveling device in the traveling direction, and can be tilted up and down with the rear end of the main body frame equipped with the drive source and the pivot point of the self-propelled wheel as a fulcrum. In addition, it must function to enable left and right steering of the traveling device, and must have sufficient strength to withstand the steering operation force of the traveling device. Or an endless loop shape, etc., as shown in the embodiments described later, an output operation portion and an accelerator operation portion of the drive source, an operation portion for the transmission gear, A clutch operation part or a brake operation part may be provided.

    The drive source must have a driving force transmission mechanism that supplies a rotational driving force to the self-propelled wheel, enables the traveling device to be self-propelled, and transmits the driving force to the self-propelled wheel. When the operator grips and lifts the steering handle, the rear end of the main body frame is arranged so that the rear end of the main body frame can be held in an inclined posture, and sufficient driving force is provided as a relatively light weight. In addition to being able to be a drive motor having a battery, it should have a power to be exerted, as well as a diesel engine or a two-stroke cycle or four-stroke with a fuel tank as shown in the examples described later It can be a gasoline engine of a cycle, and is provided with an automatic transmission mechanism that operates according to the accelerator operation of the worker or a transmission mechanism that can be directly operated by the worker. It is possible to be.

    The drive force transmission mechanism fulfills the function of allowing the drive force generated by the drive source to be transmitted to the rotational force of the self-propelled wheel, and can efficiently transmit the output of the drive source to the self-propelled wheel. More specifically, it is possible to select from various power transmission mechanisms such as a chain, a belt, a shaft, a flexible shaft, and a gear, and as shown in the embodiments described later, It can be a combination of a shaft or flexible shaft built in a pipe-shaped main body frame and a bevel gear, hypoid gear, worm gear or screw gear, etc., with a reduction gear or transmission as required Is possible.

    The bracket for mounting the weeding device fulfills the function of allowing the connecting arm of the weeding device to be detachably mounted at a proper position near the self-propelled wheel of the main body frame and the shaft mounting part, and is sufficient to support the weeding device. It must be strong enough to be able to easily temporarily fix and remove the connecting arm of the weeding device using bolts, nuts, butterfly screws, screw holes, or buckles, It can be detachably incorporated in the main body frame.

    The grooving device mounting bracket has a function that allows the connecting arm of the grooving device to be detachably mounted at an appropriate position in the middle of the main body frame, and can support the grooving device to be cut into the field ground without any trouble. In the same way as the bracket for attaching the weeding device, the connecting arm of the grooving device can be easily temporarily mounted using bolts / nuts, butterfly screws / screw holes, buckles, etc. It should be able to be fixed and easily removed.

    The weeding device is detachably attached to the traveling device, and fulfills the function of weeding the weeds generated between the rice shoots of the paddy field as the traveling device self-runs, in a rooting and stirring manner. To the bracket for attaching the weeding device provided near the front end of the main body frame of the main body frame through a connecting arm so that it can be freely attached and detached. The right side of the horizontal ridge across the right side of the horizontal ridge is connected to a suitable place, and a plurality of weeding blades and / or wheel wings are drooped along the left and right sides of the horizontal ridge so that they can contact the field ground. A leg that can be set to a height exceeding the seedling height at each front part of each weeding stirring blade and / or wheel blade of the horizontal paddle as shown in the examples described later. The tip is facing upward through the section , It is desirable to those provided with a guide sled which is slightly curved to the rear end side downward.

    The connecting arm allows the weeding device to be detachably connected to the vicinity of the front end of the main body frame of the traveling device, and has sufficient strength to stably support the weeding device. It must be able to support so as not to interfere with the frame, etc., and is formed in a pair of upper and lower parallel links that are set to a predetermined length. The shock absorbing mechanism that allows the vertical movement within the predetermined range is set to be formed.

    The shock absorption mechanism is not affected by fluctuations in the forward / backward tilt posture of the traveling device while traveling, and functions so that the ground contact posture of the weeding device can be kept stable and the weeding device can flexibly follow the unevenness of the paddy field surface. Elasticity such as a spring or elastic resin incorporated in the connecting arm itself, the bracket for attaching the weeding device, or the attaching part of the horizontal rod, leg, guide rod, weeding blade for weeding, wheel blade, etc. In addition to being able to consist of members, as shown in the examples described later, without forming an elastic member, the connecting arm for the weeding device is formed into a pair of upper and lower parallel links set to a predetermined length, It is possible to allow the vertical movement within a predetermined range of the horizontal rod.

    The horizontal dredge performs a function of allowing the tip of the weeding device connecting arm to be able to support the alligator so that each weeding blade and / or wheel blade corresponds to each of a plurality of adjacent rice strips. The tip of the connecting arm shall be connected with sufficient strength to the hook, and shall have rigidity capable of supporting each weeding blade and / or wheel blade without weaving. Each of the weeding agitation blades and / or the wheel blades may be provided with a guide rod mounting leg projecting downward at various locations corresponding to the front of the wheel blades.

    The weeding blades for weeding are automatically driven to rotate around the vertical axis in response to the contact resistance to the ground when they are in contact with the field ground or in a downward piercing state as the traveling device travels. The soil is forced to agitate and weeds are rooted and weeded, and a plurality of wings are placed in a downward position so that either the left or right direction of travel is relative to the virtual vertical line. It is supported so that it can rotate around a slightly tilted axis, and the wings that are in contact with the ground receive resistance and can automatically generate rotational force, and are relatively light and have sufficient rigidity. Except for one piece placed at the left and right ends of the horizontal cocoon, between the left and right ends of the horizontal cocoon, two pieces should be placed between each shoot, and the single shoot should be sandwiched between the left and right sides. Although it is desirable that one be placed between each shoot, It is also possible to assume that was.

    The wheel wings are automatically driven to rotate around the horizontal axis when receiving contact resistance to the ground when they are in contact with the field ground or in a downward piercing state as the traveling device travels. , Which functions to forcibly remove the weeds by forcing the soil into agitation, and consists of rolling wheels that are rotatably mounted around a horizontal axis that is perpendicular to the traveling direction of the traveling device. The outer peripheral wall should be provided with a plurality of claws that can stir the surface of the paddy field in a scattered manner. It is also possible to have a plurality of needles or swords protruding, etc., and the other outer peripheral wall is formed so as to be rolled into a rolling shape by its weight from the top of the soil surface. It is desirable to do.

    The guide rod can be slidably grounded on the ground of the field and can be guided so as to properly maintain the contact state of each weeding stirring blade and / or wheel blade of the weeding device to the ground surface and the state of being stuck in the soil. In order to make the mud dredging smooth, it must be set to a size and shape that allows the left and right width dimensions to be set shorter than the width between the rice strips and to be arranged with sufficient margin between the rice strips. The tip must be formed into a bowl shape with the wings curved upward, and it is desirable that the trailing edge bend the wings slightly downward to prevent the trailing edge from sinking, One piece oriented in the left-right direction with the thickness direction being approximately perpendicular to the traveling direction so that it can be stabbed into the field ground at any appropriate place on the bottom surface including the left and right edges or in the vicinity thereof, and the left-right deflection can be regulated Or down multiple straight guide wings It can be assumed that projected to.

    The legs serve to connect the appropriate upper portions of the guide rods corresponding to the horizontal ridges of the rice bran individually. It must be able to be connected with sufficient strength to support a predetermined posture, be able to be set to a height that exceeds the seedling height, and the height can be adjusted according to the growing situation of the rice, It is desirable to have a height adjustment function having an expansion / contraction mechanism portion and a temporary fixing mechanism portion made of a screw or a pin that can be temporarily fixed to an appropriate height.

    The grooving device can be detachably attached to an appropriate position of the main body frame, and fulfills the function of enabling excavation and formation of a groove having a predetermined width and depth on the field ground as the traveling device travels. It must be detachably attached to the grooving device mounting bracket provided in the middle of the middle through a connecting arm that is integrally provided, and has a tip-shaped outer shape. None, shall have a grooving bottom that will be pierced into the field ground behind the self-propelled wheels, and shall be strong enough to be pierced into the mud-shaped field ground. It should be formed with a certain weight so as to facilitate subsidence to irrigated mud soil.

The bottom for grooving functions to set the shape of the incision part of the grooving device into the ground so that the depth and width of the kerf can be gradually increased from the front to the back as the traveling device advances, The center of the front is formed to be gradually narrowed upward toward the direction of travel, and the rear part of the direction of travel is gradually widened toward the rear and inclined downward. It is desirable that the regular cross-sectional shape from the traveling direction is an inverted regular triangle, an inverted isosceles triangle, an upside down inverted trapezoid, a semicircular shape, and the like.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

    1 is a perspective view of a paddy field weeding and grooving machine equipped with the weeding device of FIG. 1, a perspective view of a paddy field weeding and grooving machine equipped with the grooving device of FIG. 2, and FIG. The example shown in the side view and the side view of the paddy field weeding / grooving machine in the weeding operation shown in FIG. 4 shows that the front end of the main body frame 3 is inclined upward from the front in the traveling direction to the rear in the traveling direction. A self-propelled wheel 4 having an axial center oriented in the horizontal direction is attached to the right position, and the left and right steering handles 5 and 5 are positioned at either the middle position or the rear end position. And a traveling device 2 provided with a drive source 6 having a driving force transmission mechanism 61 for the self-propelled wheels 4 at the other appropriate position, either the rear end or the middle. Self-propelled wheel 4, a weeding device mounting bracket 31 near the shaft attachment part The weeding device mounting bracket 31 is provided with a weeding device 7 having a horizontal rod 71 straddling a plurality of shoots and provided with a weeding blade 76 for downward weeding on each of the strips. Are attached detachably through connecting arms 8 and 8 extending rearward from each other, and a grooving device mounting bracket 33 is provided at an appropriate position in the middle of the main body frame 3 to be attached to the grooving device mounting bracket 33. Is a connecting arm whose grooving device 9 has a grooving bottom 91 and has a grooved bottom 91 that is inserted into the field ground behind the self-propelled wheel 4 and has a tip that extends upward. 1 shows a typical embodiment of the paddy weed and groove cutter according to the present invention, which is detachably mounted through 92.

    As shown in FIG. 1, the paddy weed and grooving machine 1 is integrated with the rear end of a pipe-shaped main body frame 3 in the vicinity of the output portion of a gasoline engine 6 of a four-stroke cycle or a two-stroke cycle serving as a drive source 6. The rotating shaft 62 for driving force transmission having a bevel gear 63 provided at the front end is concentrically rotatable in the middle of the pipe cavity where the rear end of the pipe-shaped main body frame 3 extends from the end to the end. The rotary shaft 62 is mounted, and the rear end of the rotary shaft 62 is connected to an output shaft 64 having an automatic transmission mechanism 65 of the gasoline engine 6 to form a driving force transmission mechanism 61.

    The front end of the main body frame 3 with the front end tilted downward and the rear end tilted upward, and the portion where the bevel gear 63 of the driving force transmission mechanism 61 is disposed, is a self-propelled wheel 4. The bevel gear 42 integrated with the bevel gear is pivotally attached to the pipe-shaped main body frame 3 so as to be rotatable about a horizontal axis that is perpendicular to the pipe-shaped main body frame 3. And the gear 63, the shaft 62, etc. are fitted with a collar lid 45 so that they are not exposed to the outside. A ring in which the radii 43, 43,... Are radially extended and a plurality of scraping blades 44, 44,. 41 is integrated.

    The front end of the left and right steering handles 5, 5 branched to the left and right bifurcated and extended rearwardly from the engine 6 to the middle part of the main body frame 3 are connected via a mounting bracket 51. A throttle lever 67 of a throttle cable 66 extended from the gasoline engine 6 is attached in the vicinity of the grip 52 of the steering handle 5 on the right side, so that the traveling device 2 is formed. ing.

    Further, a weeding device formed in a frame shape of an upside down U-shape or a roll-over U-shape on the upper side in the vicinity of the front end of the main body frame 3 where the self-propelled wheel 4 is pivotally attached. The mounting bracket 31 is bolted so as to be detachable via the base portion 32, and the middle subordinate located between the self-propelled wheel 4 and the engine 6 of the main body frame 3 Is composed of a pair of front and rear downward tongue pieces or downward square plates, and grooving device mounting brackets 33, 33 each having a mounting hole 34 penetrating in the left-right direction (plate thickness direction) in the vicinity of each lower end are integrally formed. It has become fixed to.

    The weeding device 7 detachably mounted on the weeding device mounting bracket 31 has a horizontal rod-shaped horizontal rod 71 set to a length dimension straddling the adjacent five shoots, and at the center upper portion between the left and right ends. A connecting rod 72 is integrated, and a vertical rod-like leg portion 73 slightly higher than the height of the seedling is connected in a vertically downward manner from each of the lower surfaces corresponding to each rice row of the horizontal rod 71. , 73,... Are projectingly provided at the lower ends of the leg portions 73, 73,... Alternatively, as shown in FIG. 4, the thickness direction is directed in the left-right direction that is substantially perpendicular to the traveling direction so that it can be stabbed in the field ground GL and regulated in the left-right direction as shown in FIG. One or more straight guide vanes 75 project downward .. Are combined with appropriate positions on the upper surfaces of the inner collars 74, 74,..., And the leg portions 73, 73,. The height can be adjusted by attaching a fixing mechanism.

    From the vicinity of the rear upper end of each leg portion 73, 73,..., Support rods 77, 77,. The weeding stirring blade 76 having a plurality of blades directed downward is slightly placed on the lower surface near the rear end of each of the support rods 77, 77,. The lower end of the blades, which are inclined downwardly, are arranged so as to be rotatable about the inclined longitudinal axis, and the lower end of the blades which are inclined downward on these weeding stirring blades 76, 76,. , 74,... Are set in an arrangement relationship so as to be stabbed into the ground GL when grounded on the field ground GL.

    As shown in FIGS. 3 and 4, the front ends of the indirect bars 78, 78,... Capable of adjusting the rearward downward angle are advanced at the rear ends of the support bars 77, 77,. Wheel wings that are connected by bolts and nuts that pass through in the horizontal direction perpendicular to the direction, and that are inclined downward, with a plurality of claws for soil stirring on the outer peripheral wall. 79, 79,... Are pivotally mounted so as to be rotatable around a horizontal axis that is perpendicular to the direction of travel, and the lower ends of the wheel blades 79, 79,. When 74, 74,... Are grounded on the field ground GL, they can be set so as to have a stabbed layout relationship with the field ground GL.

    The weeding device 7 has a pair of upper and lower connecting arms 72 formed in the form of a pair of upper and lower parallel arms, connected to the upper and lower sides of the horizontal rod 71 connecting seat 72 so as to be swingable up and down, and extended backward in the traveling direction. The connecting arms 8, 8 have butterfly bolts whose rear ends are oriented horizontally on the left and right with respect to the direction of travel, respectively, on the top and bottom of the vertical frame portion of the front end of the bracket 31 for attaching the weeding device. It is assumed that a parallel link-type shock absorbing mechanism 81 is formed by being connected to a nut or a hexagon bolt / nut so as to be swingable up and down and detachable.

    As shown in FIG. 2, the grooving device 9 attached to the grooving device mounting brackets 33, 33 of the main body frame 3 from which the weeding device 7 has been removed has a hook-shaped outer shape, and is obliquely upper front. The front end is narrow, the rear end facing diagonally downward and rearward is wide, and has a bottom 91 for grooving whose front-rear cross section is formed in an inverted isosceles triangle shape. The upper ends of the front and rear connecting arms 92 and 92 extending upward from the two upper surfaces are arranged so as to overlap the mounting holes 34 and 34 of the groove mounting brackets 33 and 33, respectively. Through the mounting holes 93, 93 drilled in the end portions of the 92, 92, it is securely fixed temporarily by a butterfly bolt / nut or a hexagon bolt / nut.

(Operation of Example)
The paddy weed and grooving machine 1 according to the present invention having the above-described configuration removes the grooving device 9 from the grooving device mounting brackets 33 and 33 as shown in FIGS. 1, 3 and 4. When the weeding device 7 is attached to the bracket 31 for attaching the weeding device, it can be used as the self-propelled weeding device 7. When the weeding operation is carried in the paddy field, the engine 6 is started and the throttle lever 67 is activated. Is adjusted by adjusting the travel speed, and as shown by the white arrows in FIG. 3, the operator operates to grip and push down the left and right steering handles 5 and 5, so that the self-propelled wheels 4 are operated. The weeding device 7 in the front is raised with the fulcrum as a fulcrum, and the guide rods 74, 74,..., The weeding stirring blades 76, 76,. , Move So it becomes possible.

    After moving the paddy weed and grooving machine 1 into the paddy paddy field and placing it at the weeding start position, as shown by the white arrows in FIG. It is operated to pull up, and the posture of the guide rods 74, 74,... Of the weeding device 7 is changed so as to come into contact with the field ground GL peeking between the adjacent shoots with the self-propelled wheel 4 as a fulcrum. As shown by the wavy line and the solid line in FIG. 4, the connecting arms 8 and 8 allow the horizontal rod 71 to move to some extent with respect to the weeding device mounting bracket 31. The guide rods 74, 74,..., The weeding agitation blades 76, 76,... And the wheel blades 79, 79,. Start weeding In addition, the guide rods 74, 74, ..., the weeding stirring blades 76, 76, ... and the wheel blades 79, 79, ... are flexible so as to follow the uneven shape of the field ground GL. It will be supported so that it can move up and down.

    When the traveling device 2 is self-propelled and moved in a direction parallel to the shoots, the guide rods 74, 74,... Joined to the ground surface GL between the adjacent shoots are respectively straight guide wings 75, 75,. However, it becomes possible to reliably avoid contact with the shoots by guiding the traveling direction of the weeding device 7 linearly in the form of a stab in the soil. Each of the weeding agitation blades 76, 76,... Arranged at the rear of the slab is pierced into the soil, and the wing subjected to resistance is automatically rotated around the slightly inclined vertical axis, The surface is agitated, and weeds growing between the shoots are weeded in agitation.

    Further, as shown in FIGS. 3 and 4, when the wheel blades 79, 79,... Are provided behind the respective weeding stirring blades 76, 76,. ...... However, the peripheral wall underneath is brought into contact with the mud-like ground surface GL in a stab-like manner, and automatically rotates around the horizontal axis that is perpendicular to the traveling direction of the traveling device 2 due to the resistance. The weeds remaining between the shoots are weeded in a stirring manner, and a telescope-type telescopic mechanism and a temporary fixing mechanism that can be temporarily fixed to a desired height on the legs 73, 73,. Can be appropriately adjusted and temporarily fixed according to the height of the worker and the hardness of the field ground GL (the amount of sinking of the self-propelled wheels 4). It becomes.

    When cutting grooves at important points in the paddy field, either remove the weeding device 7 from the weeding device mounting bracket 31 of the paddy field weeding and grooving machine 1 traveling device 2 or the base unit 32 various weeding device mounting brackets. 31 and removing the weeding device 7, and as shown in FIG. 2, the upper ends of the connecting arms 92, 92 of the grooving device 9 with respect to the grooving device mounting brackets 33, 33, as shown in FIG. And detachably connect them using butterfly bolts / nuts or hex bolts / nuts, ground the grooving bottom 91 of the grooving device 9 between the shoots for grooving, The end edge is made to be pierced into the soil, and the throttle lever 67 is appropriately opened to control the traveling device 2 to be self-propelled, and a lateral groove-like groove is formed behind the traveling grooving bottom 91. After finishing the grooving, the left and right steering handles 5, 5 are lifted upward to leave the grooving bottom 91 of the grooving device 9 floating above the ground. It will be moved to the outside of the paddy field.

(Effect of Example)
In the paddy field weed and groove cutter 1 of the embodiment having the above-described configuration, the impact absorbing mechanism 81 of the weeding device 7 is connected in a parallel link shape in addition to the features described in the section of the effect of the present invention. When moving up and down by the connecting arms 8 and 8 as shown by solid and wavy lines in FIG. 4, guide rods 74, 74,... Provided on the horizontal rod 71, weeding blades 76, 76,. And / or wheel wings 79, 79,... Can be moved up and down while maintaining a proper posture for weeding, and even if there are irregularities on the ground of the field, it can be prevented from being lifted or pierced. There is an effect that weeding can realize weeding without unevenness.

    In the weeding device 7, the wheel blades 79, 79,... Are arranged behind the respective weeding stirring blades 76, 76,. 79 stirs with the claws and simultaneously presses and hardens the peripheral wall from the top to prevent roughening of the field ground and to reliably prevent regeneration of the weeds that have been stirred. Advantages can be obtained, and the front ends of the indirect rods 78, 78,... That support the wheel blades 79, 79,... Can be adjusted vertically at the rear ends of the support rods 77, 77,. In the connected structure, the effect that the ground contact height can be freely adjusted according to the hardness of the field ground is exhibited.

    In addition, when the telescopic type telescopic mechanism and the temporary fixing mechanism that can be temporarily fixed to a desired height are attached to the legs 73, 73,... Depending on various conditions such as hardness, etc., the vertical position of the guide rods 74, 74,..., The weeding stirring blades 76, 76,. It is possible to realize more efficient weeding, and furthermore, a bracket 31 for attaching a weeding device is detachably attached to a proper position of the main body frame 3 via the base portion 32. When the weeding operation is not performed, the weeding device mounting bracket 31 itself can be easily removed, the traveling device 2 can be further reduced in weight, and lighter driving and operation can be realized. The paddy field weed can be used for weeding by attaching a base part 32 at a suitable position in front of a conventional traveling device 2 dedicated to grooving for paddy fields and attaching the weeding device mounting bracket 31 and the weeding device 7 detachably. It is also possible to change to the dual-use grooving machine 1.

    In addition, the grooving device mounting brackets 33, 33 are formed so as to project downward from the middle part of the main body frame 3 provided with the engine 6 at the rear end, and each grooving device mounting bracket 33, 33 serves as an engine guard that protects the engine 6 when the grooving device 9 is removed, and it is possible to prevent the occurrence of engine trouble due to inadvertent grounding or contact. Will be.

(Conclusion)
As described above, the paddy weeding and grooving machine according to the present invention can achieve the intended purpose evenly by its novel configuration, and is easy to manufacture, and has been used for conventional paddy weeding machines and paddy fields. Compared to other grooving machines, etc., it is possible to use one traveling device for both weeding and grooving machines, making it far more economical than purchasing them individually. In addition, the storage space is reduced, the weeding device and the grooving device can be attached and detached easily and quickly by a small number of people, and the traveling device is also relatively light, which has been a heavy burden in the past. The paddy field weeding and grooving workability can be greatly improved, and not only for rice farmers who are suffering from labor shortages, aging, and increased economic burden due to the purchase of agricultural machinery, but also for the entire agricultural equipment industry. Appreciated It is, available over a wide range, is expected to be the ones that continue to spread.

The drawings show a typical embodiment that embodies the technical idea of the paddy weed and groove cutter according to the present invention.
It is a perspective view which shows the paddy field weed combined use grooving machine which removed the grooving apparatus. It is a perspective view which shows the paddy field weed combined grooving machine which removed the weeding apparatus. It is a side view which shows the paddy field weed combined use grooving machine made into the attitude | position for driving | running | working movement. It is a side view which shows the paddy field weed combined use groove cutting machine during the weeding work.

Explanation of symbols

1 Paddy weeding and grooving machine 2 Traveling device 3 Body frame
31 Weeding device mounting bracket
32 Same base part
33 Brackets for mounting the grooving device
34 Same mounting hole 4 Self-propelled wheel
41 Same wheel
42
43
44 The same wing
45 Same lid cover 5 Steering handle
51 Same mounting bracket
52 Same grip 6 Gasoline engine (drive source)
61 Same driving force transmission mechanism
62 Same rotating shaft
63 Same Bevel Gear
64 Same output shaft
65 Automatic transmission mechanism
66 Throttle cable
67 Throttle lever 7 Weeding device
71 Same horizontal fence
72 Same connection seat
73 Same leg
74 Same guide
75 Straight guide wing
76 Stirring blade for weeding
77 Support rod
78 Indirect bar
79 Same wheel wing 8 Connecting arm
81 Same shock absorbing mechanism 9 Grooving device
91 Same bottom for grooving
92 Same connecting arm
93 Same mounting hole GL Field ground

Claims (6)

    A self-propelled wheel with a shaft centered in the horizontal direction is attached to the front end of the main body frame, which is inclined upward from the front in the direction of travel to the rear in the direction of travel. A drive having a steering handle at an appropriate position in either the rear or the rear end, and a drive force transmission mechanism to the self-propelled wheel in the other proper position at the rear end or in the middle A self-propelled wheel of the main body frame and a bracket for attaching a weeding device in the vicinity of the axially attached portion, and the bracket for attaching the weeding device spans a plurality of shoots. A weeding device having a horizontal rod with a weeding blade for weeding downward in the middle is detachably mounted via a connecting arm extending backward from the vicinity of the center, and the middle frame of the main body frame Remove the grooving device in place The grooving device mounting bracket includes a grooving device having a grooving-shaped outer shape and having a grooving bottom portion that is inserted into the field ground behind the self-propelled wheel. The paddy weeding and grooving machine is characterized in that its tip is detachably mounted via a connecting arm extending upward from the bottom.     A self-propelled wheel with a shaft centered in the horizontal direction is attached to the front end of the main body frame, which is inclined upward from the front in the direction of travel to the rear in the direction of travel. A drive having a steering handle at an appropriate position in either the rear or the rear end, and a drive force transmission mechanism to the self-propelled wheel in the other proper position at the rear end or in the middle A self-propelled wheel of the main body frame and a bracket for attaching a weeding device in the vicinity of the axially attached portion, and the bracket for attaching the weeding device spans a plurality of shoots. A weeding device having a horizontal rod with a weeding blade for weeding downward in the middle is detachably mounted via a connecting arm extending backward from the vicinity of the center, and the middle frame of the main body frame Remove the grooving device in place The grooving device mounting bracket includes a grooving device having a grooving-shaped outer shape and having a grooving bottom portion that is inserted into the field ground behind the self-propelled wheel. The tip of the grooving device is detachably mounted through a connecting arm extending upward from the end. The grooving device is removed from the grooving device mounting bracket during the weeding operation, and the weeding device is removed from the weed during the grooving operation. A paddy weeding and grooving machine characterized in that it can be used by removing it from the device mounting bracket.     A self-propelled wheel having an axial center oriented in the horizontal direction is attached to the right end of the front end of the pipe-shaped body frame that is inclined upward from the front in the traveling direction to the rear in the traveling direction. Driving with left and right steering handles in the middle of the middle part of the wing, and driving force transmission mechanism for the self-propelled wheels in the right part of the rear wing in the pipe-shaped body frame It is composed of a device, and a weeding device mounting bracket is detachably provided in the vicinity of the self-propelled wheel of the main body frame and the shaft attachment part, and the weeding device mounting bracket spans a plurality of shoots. A weeding device with a horizontal rod, each with a downward weeding blade for weeding, is detachably attached via a connecting arm extending backward from the center to the middle of the main body frame in the middle Grooving device mounting bracket The grooving device mounting bracket is provided with a grooving device having a gutter-shaped outer shape and having a grooving bottom portion that is inserted into the field ground behind the self-propelled wheel. A paddy weeding / grooving machine characterized in that the tip is detachably mounted via a connecting arm extending upward from the end.     A weeding device is attached to each part corresponding to each shoot of the horizontal paddle with a leg that can be set to a height exceeding the seedling height, with the tip slightly facing upward and the trailing edge slightly facing downward. A downwardly-turning stirring blade and / or a wheel blade that can automatically rotate in response to a resistance force due to grounding are appropriately disposed behind each leg portion. The paddy weed combined use grooving machine according to any one of claims 1 to 3. A weeding device is attached to each part corresponding to each shoot of the horizontal paddle with a leg that can be set to a height exceeding the seedling height, with the tip slightly facing upward and the trailing edge slightly facing downward. In the left-right direction, the thickness direction is substantially perpendicular to the traveling direction so that the bottom of the field including the left and right edges or its surroundings can be inserted into the field ground and the left-right deflection can be controlled. A guide rod having a straight guide blade directed downward is provided, and behind each leg is a downward weeding stirring blade and / or a wheel blade that can automatically rotate under the resistance of the ground. The paddy weed combined use grooving machine according to any one of claims 1 to 3, wherein the paddy weeding / grooving machine is arranged as appropriate and is supported so as to be adjustable in height substantially at an appropriate position of a horizontal ridge.
(Explaining the straight guide wing of the guide rod)     The weeding device forms its connecting arm in a pair of upper and lower parallel links set to a predetermined length, and the upper and lower parts within the predetermined range of the horizontal rod are between the bracket for mounting the weeding device and the vicinity of the center of the horizontal rod. 6. The paddy weeding and grooving machine according to any one of claims 1 to 5, wherein an impact absorbing mechanism that allows movement is formed.

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