JP2005287366A - Rice paddy weeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice paddy weeder obtained by mounting various spring tine weeding bodies as exchangeable on a machine frame mounted at the rear part of a riding type traveling machine body as freely ascendable and descendable and weeding between rows as well as between roots. <P>SOLUTION: This rice paddy weeder is provided by joining the machine frame 9 through a three points-linking hitch mechanism equipped at the rear part of the riding type traveling machine body 1 as freely ascendable and descendable and installing a boat-shaped sliding plate 13 capable of adjusting its height at the front end part of lengthwise beams 12. The machine frame 9 is constituted by the lengthwise beams 12 installed as extended from the left and right of a central part to rear direction along with its advancing direction and by mounting a plurality of crossing beams 18 crossing at right angle to the advancing direction on the lengthwise beams 12 as capable of adjusting front and rear distances. At the crossing beams 18, weeding body shank holder 19 is mounted as left and right distance adjustable, and shanks consisting of various spring tines are mounted at the weeding body shank holder 19 to constitute a weeding body group 20. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  TECHNICAL FIELD The present invention relates to a paddy weeding machine in which a weeding body composed of a steel bar spring tine is replaceably mounted on a machine frame connected to a rear part of a riding traveling machine body so as to be able to move up and down, so that weeding can be performed between rice lines and between lines. .

  As weeding paddy weeds, there are known human-powered rotating paddy field weeders, paddy field herbicide use, and passenger-running towing paddy field weeders. Paddy field herbicides are used less to prevent environmental pollution, and the use of human-powered paddy field weeders imposes harsh labor. Therefore, to reduce labor, paddy field weeders capable of mechanical weeding have been considered and many proposals have been made.

  Conventionally, in the mechanical weeding of paddy rice, a streak weeding mechanism can be obtained relatively easily, but it has been difficult to obtain a mechanism capable of weeding between strains without damaging rice. Therefore, paddy weeders have many attempts on the inter-plant weeding mechanism.

  For example, the paddy field weeding machine disclosed in Japanese Patent Application Laid-Open No. 10-243703 is provided with a row weeding section and an interstitial weeding part in a machine frame for removing weeds grown in paddy fields having a large number of rice lines. The weeding part is detachable from the machine frame, and further includes a weeding pushing part that pushes the weeds weeded by the inter-row weeding part into the ground, and the weeding pushing part is exchangeable with the inter-strain weeding part. Yes.

Moreover, the paddy field weeding machine of Unexamined-Japanese-Patent No. 2003-204708 connects the weeding apparatus which consists of a streak weeding mechanism and an inter-strain weeding mechanism to the rear part of a riding traveling body so that raising / lowering is possible. In particular, the interweed weeding mechanism has a horizontally long movable frame that is driven back and forth to the left and right, and multiple weeding tines are installed vertically corresponding to the planting shoots, and this weeding tine can be attached to and detached from the machine frame together with the movable frame. ing.
JP 10-243703 A JP 2003-204708 A

  In general, the growth of rice stocks is divided into young seedlings, middle seedlings, and adult seedlings according to the degree of growth. When rice seedlings were young seedlings, the roots were not yet sufficiently stretched in the ground, so if weeding between the streak and the stock at the same time, there was no problem with the streak, but between the stocks, the seedlings were mixed with weeds. Will be taken. Therefore, it is desirable that the paddy weeder can only perform inter-row weeding at the time of young seedling, and can simultaneously perform weeding between the streak and the strain if it becomes a middle seedling or an adult seedling.

  The inter-row weeding mechanism in the paddy field weeding machine disclosed in Japanese Patent Application Laid-Open No. 2003-204708 horizontally supports a plurality of herbicidal rotors arranged in parallel at the same pitch as the inter-row pitch so as to be located between the streak of planted seedlings. The entire weeding rotor is configured to be rotationally driven integrally in the down cut direction. Moreover, the inter-strain weeding mechanism is attached to a movable frame that reciprocally moves a weeding tine in which a wire rod is suspended downward.

  On the other hand, the thing of Unexamined-Japanese-Patent No. 10-243703 is weeded by the inter-row weeding part provided in the machine frame, the inter-strain weeding part provided in the machine frame so that attachment or detachment is possible, and left between the lines. It has a weeding intrusion section that pushes weeds into the ground. The inter-weeding portion includes a plurality of fingers that are provided on a shaft extending in the width direction of the machine frame, the tip portions of which are positioned on both sides of the rice stock, and scrape the weeds by rotation. A plurality of arm sets are provided on the shaft. Further, the weeding push-in portion has an axis in the machine frame width direction, and is provided with a drum for pushing the weed remaining between the strips by rotation into the ground.

  The paddy weeding machine described above has a rotating mechanism for rotating the weeding rotor for streak weeding, a driving mechanism for reciprocating the movable frame of interstitial weeding, or a finger that scrapes weeds between the strains by rotating the rotating rod. The construction is complicated and the production cost is increased.

  In view of this, the present invention attaches a machine frame to the rear part of a riding traveling machine body capable of traveling between strips of paddy fields, and attaches various weeding bodies made of spring tines to the machine frame in a replaceable manner. The object is to provide a paddy weeding machine that can push weeds that have been weeded between the streak, between the stocks, and between the streak without using a frame.

  In order to achieve the above object, the machine frame was attached to a passenger traveling body that can travel between planting strips of paddy fields. The machine frame is provided with a vertical girder extending rearward along the forward direction from the left and right at the center of the front part, and a plurality of horizontal beams are mounted on the vertical girder so as to be adjustable in the front-rear direction. In addition, a boat-shaped planing plate that touches the paddle surface is provided at the front end of the stringer so as to be adjustable in height, so that the height of the machine frame from the paddy surface can be maintained. A variety of herbicidal bodies made of spring tine were attached to the cross beams so as to be replaceable, and a group of herbicidal bodies was formed to constitute a paddy field weeder.

  In particular, for inter-strain weeding, the end tips of the left and right weeding tines with the middle part bent outward and the terminal part bent inward were crossed. That is, if the intersection of the spring tine terminal is arranged on the rice stock, the intersection touches the side surface of the rice stock and advances against the spring force of the tine due to advance, and the rice stock is not damaged. As we move further forward, the crossing part leaves the rice plant and automatically closes with a spring force, and we can weed between the plants up to the previous rice plant.

  For weeding between the strips, the tip of the left and right spring tine consisting of the filaments is fixed with a sickle blade in the reverse direction with the blade edge facing forward, and the tip of the filament spring tine is bent inward The one that can be weeded by stirring the rice field was used. Further, a bar spring tine was arranged in parallel on the lower bar of the inverted T-shaped shank, and a bear hand spring tine was used as a herbicidal body.

  At the both ends of the inverted T-shaped shank, spring tines with the upper part bent in a square outward and the lower part bent inward and the tip crossed are attached to the outside and inside, and a square outward bent double spring tine weeding body is attached. Using. Moreover, the square outward bending single spring tine weeding body which used the same structure was used.

  Similarly, the coil spring tine weeding body in which the start end of the coil spring is attached to both ends of the lower bar of the inverted T-shaped shank, the end of the coil spring is suspended, and the tip is bent inward and intersected is used. .

  In addition, a portal herbicide was used as a herbicide in the herbicide group. That is, the ends of the left and right coils having one end fixed to the upper surface of the horizontal bar are extended and provided side by side to form a coil spring shank. Then, left and right bent L-shaped flat steel column upper ends were respectively attached to both ends of the horizontal bar. The short coil spring tine and the long coil spring tine, which extend the coil end at the base end on the outer surface of the left and right pillars and bend outward with respect to the forward direction, can be swung up and down around the coil mounting axis. An attached portal-type weeding body.

  Further, as a herbicidal body, a steel plate tine upper end portion binding body projecting a shank at the upper end is fixed to the upper ends of a plurality of tines, and is formed into a sector-shaped sector spring tine, and the upper end shank is formed. A herbicidal body in which a cylindrical body is inserted into the lower end portion of the vertical shank diagonally downward in the forward direction, a set screw is provided on the upper surface of the cylindrical body, and the vertical shank is inserted and fixed to the herbicidal shank holder. A connecting part is attached to the cross girder of the machine frame, and the fan-shaped spring tine shank is attached and fixed to the herbicidal connecting part. It was possible to attach to.

  The fan-shaped spring tine is formed with a plastic upper end bundle, and a shank bent obliquely upward from the base end is projected at the upper end of the plastic upper-bound bundle, and the fan-shaped spring tine is projected side-by-side. Alternatively, the shank is turned into a concave arc shape, and the shank is attached to a herbicidal shank holder attached to a cross beam of the aircraft.

  The paddy weeder according to claim 1 is configured such that a machine frame is connected to a rear part of a riding traveling machine body that travels between the paddy fields, and various herbicidal bodies are attached to the machine frame in a replaceable manner to form a herbicidal body group. did. Therefore, since it does not walk, labor can be reduced significantly. Then, by replacing the herbicidal body in the herbicidal body group with an appropriate one, accurate weeding can be performed corresponding to the paddy field condition.

  According to the invention of claim 2, the machine frame is mounted on the left and right vertical girders so that the horizontal girders can be adjusted in the front-to-back direction and the forward and backward tilts in a direction orthogonal to the forward direction. Appropriate inclination can be given to the direction. Also. Since a boat-shaped planing board that contacts the surface of the stringer so that the height can be adjusted is attached to the front end of the stringer, the ground height of the machine frame can be maintained appropriately and a good weeding action can be obtained.

  The invention according to claim 3 is a vertical position of the herbicidal body by attaching a weed body shank holder having an insertion hole in the vertical direction to the cross beam and inserting a shank protruding from the top of the weeding body into the insertion hole. Can be adjusted.

  The outer curved spring tine weeding body including the sickle blade according to claim 4 is formed by fixing the sickle blade between the left and right stripes of the rice stock in the forward direction, and fixing the left and right outer sides to the lower end of the spring tine in a reverse C shape. A curved spring tine is formed. Then, the left and right short spring tines and the long spring tines whose middle portions are curved outwardly are installed at the rear of the left and right outer curved spring tines. The part is bent inward and crossed. In this weeding body, the sickle blade weeds the streak, and at the same time, the intersection of the tip of the long spring tine weeds the strain. And the short spring tine and the long spring tine can be made to act integrally by bundling the short spring tine and the long spring tine with the rubber band. Further, when the binding position of the rubber band is set upward, the length of the long spring tine becomes long, and the elasticity can be weakened.

  The plastic tine fixing body according to claim 5 can be a tine fixing body that is resistant to corrosion by water in paddy fields. The plastic fixing body according to claim 6 can be attached without swinging the weeding body from side to side by inserting the shank of the weeding body into the shank insertion groove of the weeding body on the back surface.

  The outwardly curved spring tine according to claim 7 is capable of weeding between the stocks by the left and right outer curved inner spring tines whose ends are bent inward and intersected, and the left and right outer curved intermediate spring tine and the left and right outer spring tines are The inner bending tip can stir the streak and weed. That is, this herbicidal body can be weeded simultaneously between the streak and the strain.

  When the bear hand spring tine weeding body according to claim 8 is arranged above the rice line, the left and right outer spring tines and the left and right intermediate spring tines of the inner end of the tip end weed the streak and simultaneously contact the inner bent end portion. The inner spring tine can weed the strains.

  Moreover, since the crossing part of the tine front-end | tip part is arrange | positioned forward and backward, the square outward bending double spring tine of Claim 9 has the effect of weeding the weed between strains double and reducing the weed leftover. . The square outwardly bent single spring tine weeding body according to claim 10 is suitable for a case where there are few weeds between strains because the tine terminal portion has one intersection, and has an effect of reducing traction resistance. The herbicidal bodies of claims 9 and 10 are exclusively for inter-strain weeding, but in the herbicidal group, for example, by using together with the outward curved spring tine of claim 7, weeding between the streak and the strain can be performed simultaneously. it can.

  The coil spring tine weeding body of claim 11 can simplify the configuration. Moreover, since the left and right tine tips are crossed, it can be made suitable for weeding between strains. In the portal-type weeding body according to claim 12, left-turned and right-turned inverted L-shaped flat steel columns are attached to the upper horizontal bar so as to be pivotally fixed around the vertical axis, so that the angle of the column body with respect to the forward direction can be simplified. Can be changed to The short spring tine and the long spring tine of the coil are attached to the outside and the inside of the lower end of the left and right pillars so that the short spring tine and long spring tine of the coil can be swung up and down, and the ends of the long spring tine are mutually connected I made contact. Therefore, it is possible to weed the streak with the short spring tine and simultaneously weed the strain with the long spring tine.

  A weeding body according to a thirteenth aspect is a sector spring tine in a side-view arcuate shape in which upper ends of a plurality of tines are fixed to a steel plate tine upper end binding body having a shank protruding at the upper end. This fan-shaped spring tine has a top shank attached to a herbicidal body connecting portion in which a cylindrical body with a set screw is fixed to the bottom end of the vertical shank in a diagonally downward and downward direction. Therefore, if the fan-shaped spring tine is attached to the cylindrical body in a salient shape, the tine tip can scratch the surface of the streak and weed. If the salient arc-shaped spring tine is turned over and attached to the cylindrical body, it becomes a concave arc-shaped spring tine, and weeds that have been weeded and floated between the strips can be pushed into the mud and killed.

  The weeding body according to claim 14, wherein the upper ends of a plurality of tines are fixed to a plastic tine upper bound body projecting a shank that is bent obliquely upward from the base end at the upper end, and a sector-shaped sector spring tine having a side-view arcuate shape Is formed. This salient arc-shaped spring tine is salient, or turned over, and the upper end shank is attached to the weed body shank holder that is attached to the cross beam of the fuselage. And weeding, weeding the weeds that are floating in the form of concave arcs into the mud. Also in the case of this weeding body, simultaneous weeding between streaks and strains can be achieved by using, for example, the outer curved spring tine weeding body including the sickle blade of claim 4 and the outward bending spring tine weeding body of claim 7.

  The machine frame on which the weeding body is arranged is attached to the left and right vertical girders so that the distance between the front and rear can be adjusted, and is connected to the rear part of the riding traveling machine so as to be raised and lowered. On the left and right sides of the front of the aircraft, a boat-type planing board that glides on the rice field between the rice stock strips is provided to be adjustable. A herbicidal shank holder that can be fixed by changing the position to the left and right is attached to the cross beam. The weeding body has a shank projecting from its upper end, and the shank is inserted into the weeding body shank insertion vertical hole of the weeding body shank holder, and the height is fixed in an adjustable manner.

  The herbicidal body is formed using spring steel, and the width is made narrower than that between the streaks so that the streaks can be moved along the rice paddy field without any hindrance. The herbicidal body that weeds between the strains extends left and right tines with the middle portion outwardly curved diagonally downward and rearward, and bends the end portion into an intersection, and weeds the strain at this intersection.

  Also, for herbicides that can be weeded simultaneously between the streak and between the stocks, the upper edge of the tine is fixed with a plastic tine fixing body with good corrosion resistance, and the edge of the blade in the forward direction is fixed to the lower ends of the left and right tines with the middle part curved outward The left and right sickle blades are fixed in reverse C shape, and the streak is cut with a sickle blade. The left and right spring tines with the sickle blades and the left and right short spring tines and long spring tines Are attached together with a rubber band, and the long spring tine is extended downward and rearward, and an outer curved spring tine weeding body including a sickle blade for weeding between the stocks by crossing the tip is formed. Similarly, as a herbicidal body capable of simultaneously weeding between streaks and strains, a bear hand spring tine herbicidal body is formed that fixes the upper end of the tine to the inverted T-shaped shank.

  In addition, as a herbicidal body capable of simultaneously weeding between the streak and the stock, an inverted T-shaped coil shank was erected on the upper horizontal bar, and the head was attached to the left and right of the horizontal bar so that the head could be swung around the vertical axis. A short coil spring tine and a long coil spring tine with the coil ends folded outward in the forward direction are fixed to the right and left inverted L-shaped flat steel columns with left and right turns. Mounted and formed into a portal herbicide.

  For inter-strain weeding, a square bent double spring tine weed body and a square bent single spring tine weed body that fix the upper end of the tine to an inverted T-shaped shank are formed. Further, the upper ends of the coil spring tines are attached to the left and right sides of the inverted T-shaped shank, respectively, and the coil spring tine weeding body is formed by extending the coil end downward and bending the tip end inwardly.

  For the weeding of the streak, the upper end of the tine is fixed with a tine upper end portion binding body, and is formed into a sector spring tine weeding body that is formed in a projecting shape in a side view. Then, the salient arc-shaped spring tine is turned upside down to form a concave arc-shaped spring tine in a side view, and is formed into a streak weed body that weeds and floats between the streaks in the mud.

  In the present invention, a herbicidal body shank holder that can be weeded between the streak and the strain at the same time, a herbicidal body that can be weeded only between the streak and the strain according to the state of the paddy field, and attached to the cross beam of the machine frame A shank at the upper end of the weeding body is attached to the machine frame, and a herbicidal body group is formed on the machine frame.

  Next, examples will be described with reference to the drawings. In the figure, the arrow F indicates the forward direction, and in the following description, the left and right are displayed from the rear unless otherwise noted. FIG. 1 is an overall side view of a paddy weeder according to the present invention, FIG. 2 is a plan view of the main part of the paddy field, FIG. 3 is a front view of the main part, and FIG. 4 is a rear perspective view of the main part.

  In FIG. 1, 1 is a passenger traveling machine body, 2 is a steering wheel, and 3 is a rear wheel. Traveling wheels 2 and 3 are narrow wheels that can travel between rice paddies in paddy fields. Reference numeral 4 denotes a three-point link hitch mechanism provided at the rear of the passenger traveling body 1, which includes left and right lower links 7 and upper links 8, and left and right lower links 7 by lift rods 6 connected to left and right lift arms 5. The hydraulic pressure is raised and lowered. The hydraulic mechanism is built in the riding vehicle 1.

  In FIG. 2, P is a rice stock, R is a row of rice stocks, D is a size between rice stocks, and e is a size between stocks. When seedling transplantation is performed by a rice transplanter, the inter-strip dimension D is 30 cm, and the inter-strain e is 18 cm. The passenger traveling machine 1 travels between the strips across the four row of rice stocks R. Although FIG. 2 showed the form which weeds 6 rice stock row | line | column R, in order to increase a weeding row row | line, the width of a paddy field weeding machine is expanded.

  1, 2, 3, and 4, reference numeral 9 denotes a machine frame, which is provided with a mast 10 connected to the upper link 8 at the front, and a square steel pipe at the lower rear of the mast 10. A main cross beam 11 is provided. Reference numeral 10a denotes an upper link connecting portion, which stands vertically at the center portion of the mast 10, and has an upper link pin 27 detachably provided at the upper end portion so as to penetrate laterally as shown in FIG. The mast 10 is made of flat steel bent in a chevron shape at the center, and has lower link pins 26 protruding laterally at both left and right ends (see FIG. 3).

  Reference numeral 12 denotes a vertical girder, which is attached to both left and right ends of the main cross beam 11 using a flat steel plate and extends rearward along the forward direction. A shank mounting portion 15 having a hole having a rectangular cross section is fixed to the front end of the stringer 12 vertically. The shank mounting portion 15 is screwed with a set screw 15a on its side surface, and a flat steel plate shank 14 is inserted into the hole of the rectangular cross section and fixed with the set screw 15a.

  A boat-shaped planing board 13 that is in contact with the rice field is fixed to the lower end of the shank 14. The boat-shaped planing plate 13 is made of a plastic plate, and as shown in FIG. 3, a plate 28 is fixed to the center portion with a countersunk bolt 29, and the lower end portion of the shank 14 is fixed to the plate 28 and provided horizontally. The countersunk head bolt 29 has a counter part on the back side of the boat-shaped planing plate so that there is no protrusion from the back side. The boat-shaped planing board 13 has a standard position 40 cm below the stringer 12.

 Referring also to FIG. 10, reference numeral 16 denotes a slide fitting, which is fitted to the stringer 12 so as to be movable back and forth, and is fixed by a set screw 40 after adjusting the position. A horizontal girder holder 17 is attached to the slide fitting 16 with its vertical position adjusted, and a cylindrical portion 17 a is fixed to the upper part of the horizontal girder holder 17 with the advancing direction and the horizontal axis orthogonal to each other. A horizontal girder 18 is inserted into the cylindrical portion 17, and a herbicidal shank holder 19 is adjusted to the horizontal girder 18 by adjusting the position to the left and right. 16a is a vertical shank fitting hole of the cross beam holder 17 formed vertically, and 16b is formed horizontally by the cross beam fitting hole. Reference numeral 40 denotes set screws provided on the left and right sides of the slide fitting 16, and the right one is fixed to the stringer 12. On the left side, the vertical shank 17b of the cross beam holder 17 is fixed.

11 is a cross-sectional view taken along the line CC in FIG. In FIG. 11, a horizontal girder holder 17 has a vertical shank 17b using a flat steel plate fixed to the central portion of the lower surface of a cylindrical portion 17a with its head fixed in parallel to the cylindrical horizontal axis, and the horizontal shaft 18 is inserted into the cylindrical portion 17a. And it fixes with the set screw 22 provided in the upper part and the right side part. The cross girder 18 can be fixed in a forward or backward tilted state by moving a set screw 22 in and out. Reference numeral 46 denotes a lock nut of the set screw 22.

In FIG. 2, the cross beam 18 is connected by a cross beam connecting bolt 23 so that the length can be extended. In the embodiment, the vertical beam 12 is arranged on the left and right, and four horizontal beams 18 are inserted through the horizontal beam holder 17 in parallel in the front and rear. A total of 18 herbicidal shank holders 19 are arranged above the row of rice stocks in the three front beams 18 in total, and five herbicidal shank holders 19 are arranged on the fourth horizontal beam 18 respectively. Arranged between stocks. In FIG. 1 and FIG. 4, reference numeral 20 denotes a herbicidal body group. A herbicidal shank is attached to the herbicidal shank holder 19, and the herbicidal body is disposed in the machine frame 9.

5 is a front perspective view of the right end portion of FIG. 3, FIG. 6 is a front view of the main part of FIG. 3, and FIG. 7 is a plan view of FIG. 5 to 7, reference numeral 24 denotes a mast coupling plate, and 25 denotes a stringer coupling plate, which is attached to the main beam 11 so as to be detachable with bolts 31 across the main beam 11. A lower support 30 is in contact with the lower surface of the main cross beam 11 below the mast coupling plate 24 and communicates with the through bolt 31 to the mast coupling plate 24 and is fixed to the main cross beam 11. Similarly, reference numeral 32 denotes a lower support, which is in contact with the lower surface of the main cross beam 11 outside the lower support 30. The through bolt 31 communicates with the vertical beam connecting plate 25 and is fixed to the main cross beam 11. ing.

In FIG. 8, which is a cross-sectional view taken along the line AA, the lower support 30 is provided with brackets 33 and 34 sandwiching the main cross beam 11 before and after the upper surface middle portion, and welded to the end portion of the mast 10 at the front end. The welding piece 30a to stand is set up. Then, the mast 10 is coupled to the front portion of the main cross beam 11 by tightening the lower support 30 and the mast coupling plate 24 with a bolt 31 (see FIG. 7).

  9 is a cross-sectional view taken along line BB in FIG. Referring to FIGS. 9 and 10, the lower support 35 described above has brackets 36 and 37 that sandwich the main cross beam 11 in front of and behind the upper surface middle portion, and a flange portion 35a at a right angle on the inner side. It protrudes to. The main cross beam 11 is placed between the brackets 36, 37 on the upper surface of the lower support 35, and the vertical beam coupling plate 25 and the lower support 35 are attached with the through bolts 31, and the lower support 35 is fixed to the main cross beam 11. ing. 35b is a bolt hole which is provided before and after the upper surface of the lower support 35 and through which the through bolt 31 is inserted.

The vertical girder 12 is provided with bolt holes 45 in front and rear of the front end portion, the vertical girder fixing bolt 38 is communicated with the flange portion 35a of the lower support 35 and the bolt hole 45 and tightened with the nut 39, and both ends of the main cross beam 11 are tightened. The portion extends rearward along the forward direction.

  In FIGS. 12 and 13, reference numeral 19 denotes a cast iron herbicidal shank holder, in which a set screw 45 a provided with a lock nut 46 is screwed to the center of the front surface of the cylindrical portion 43. The cylindrical part 43 forms a herbicidal shank insertion vertical hole 44 in the center. Reference numeral 41 denotes a cross beam insertion portion, which is integrally formed at the rear portion of the cylindrical portion 43 and has a horizontal beam insertion angle hole 42 formed horizontally.

Next, the herbicidal body in the herbicidal body group 20 will be described. Reference numeral 47 in FIG. 14 denotes an outer curved spring tine weeding body including a sickle blade. 57 is a plastic tine fixing body formed by pouring a plastic material with a spring tine disposed at a predetermined position, and outer curved tines 50, 48 with left and right sickle blades and outer curved short spring tines 55, 54 on the left and right sides; The upper ends of the outer curved long spring tines 52, 53 on the left-right side are fixed to a plastic tine fixing body 57.

The outer curved spring tine 48 with a right sickle blade and the outer curved spring tine 50 with a left sickle blade curve outwardly a spring steel with a wire diameter of 5.5 mm and a length of 305 mm, and the maximum width between the two is 230 mm. The base edges of the left sickle blade 51 and the right sickle blade 49 are fixed to the lower ends of the blades in the forward direction, respectively, and arranged in a reverse C shape with respect to the forward direction. FIG. 15 is a plan view of the sickle blade portion, in which the tip gap C between the right sickle blade 49 and the left sickle blade 51 is 60 mm, the sandwich angle θ between them is 90 °, and the sickle blade length L is 11 cm. FIG. 16 is a front view taken along the line DD in FIG. 14, and the root height h of the left sickle blade 51 is 15 mm, and the radius of curvature R is 500 mm. The right sickle blade 49 is the same as the left sickle blade 51.

FIG. 17 is a longitudinal sectional view taken along line E-E in FIG. In the drawing, the width w of the left sickle blade 51 is 12 mm, the thickness t is 2 mm, and the penetration angle α with respect to the horizontal plane HL is 7 °. In FIG. 14, a left outer curved long spring tine 53 and a right outer curved long spring tine 52 have a spring steel having a wire diameter of 3.5 mm bent outward and bent at the lower portion, and the tip portion is set as an intersection 60. . The length to the lower bent portion is 340 mm, the inner bent portion is 145 mm in length, and the downward height is 50 mm. The intersection 60 has a length of 19 mm.

  The left outer bending short spring tine 55 and the left outer bending long spring tine 53 are in contact with each other, and the right outer bending short spring tine 54 and the right outer bending long spring tine 52 are in contact with each other, and are bound by rubber bands 56, respectively. . In this configuration, the short spring tine reinforces the long spring tine. When the position of the rubber band is set upward, the action length of the long spring tine becomes long and the elasticity becomes weak. In FIG. 14, the rubber band 56 is located at the end of the short spring tine. The rubber band 56 has a pipe shape with a length of 15 mm, a thickness of 1.5 mm, and an inner diameter of 6.5 mm.

  18 is an exploded perspective view of the spring tine upper end fixing member 57 of FIG. FIG. 19 is a perspective view of the back surface. Reference numeral 59 in FIG. 18 denotes a herbicidal shank using a flat steel plate, which is provided with a screw hole 62 at the lower end portion and bent upward slightly from the middle portion. 58 is a set bolt and 61 is a set bolt hole. The set bolt 58 passes through the bolt hole 61 and is screwed into the screw hole 62 to fix the weeding body shank 59 to the back surface of the plastic tine fixing body 57. Reference numeral 63 in FIG. 19 denotes a weeding body shank insertion groove into which the weeding body shank 59 is fitted, and the above-described retaining bolt hole 61 is opened at an intermediate portion. The weeding body shank 59 fitted in the weeding body shank fitting groove 63 does not swing left and right.

  FIG. 20 is a rear perspective view of the outer curved spring herbicide body 47 including the sickle blade shown in FIG. 14 when used, and the herbicidal plant is advanced along the rice row R at an angle of about 60 ° with the horizontal plane. A herbicidal shank 59 is inserted into the body shank holder 19 and fixed with a set screw 45a. The right sickle blade 49 advances through the right streak of the rice strain, and the left sickle blade 51 advances through the left streak of the rice stock, and weeds the weed while cutting the streak. The left outer curved long spring tine 53 and the right outer curved long spring tine 52 weed the weeds between the strains at the intersection 60 as described later. In the figure, P is a rice plant and Q is a weed.

  FIG. 21 is a main portion rear perspective view for explaining the herbicidal action of the herbicidal body 47 described above. The right sickle blade 49 and the left sickle blade 51 located on the left and right sides of the rice row R move outward as indicated by an arrow f by forward resistance. In response to this outward movement, the outer curved spring tine 50 with the left sickle blade and the outer curved spring tine 48 with the right sickle blade have an inward return action due to their elasticity. Accordingly, the left and right sickle blades 51 and 49 repeat outward movement and inward return as they advance, and vibrate finely inward and outward, effectively cutting the striations and performing herbicidal action as well as plowing action.

  On the other hand, the right outer curved long spring tine 52 and the left outer curved long spring tine 53 open to the left and right as shown by the right arrow a and the left arrow a when the intersecting portion 60 is in contact with the outer surface of the rice plant P, and damage the rice plant. There is nothing. After passing through the rice plant P, the intersection 60 closes to the left and right inward arrows b by the elasticity of the spring tine, and weeds the next rice plant P until weeding. As described above, the outer curved spring weeding body 47 including the sickle blade is a weeding body capable of simultaneously weeding between the streaks and the strains.

Next, FIG. 22 shows an outward curved spring tine weeding body 64. The weeding body 64 uses spring steel having a wire diameter of 3.5 mm, has a maximum width of 230 mm, and an intersection length of the tip of the inner tine is 18 mm. A shank 65 protrudes from the upper end portion, and a right outer curved outer spring tine 70, a left outer curved outer spring tine 71, a right outer curved intermediate spring tine 68, and a left outer curved portion which are fixed to the plastic tine fixing body 73. An intermediate spring tine 69, a right outer curved inner spring tine 66, and a left outer curved inner spring tine 67 are configured. The inner bending tip portion 66a of the inner spring tine 66 and the inner bending tip portion 67a of the inner spring tine 67 form a tip crossing portion 72 for weeding between the stocks, and the intermediate spring tines 68 and 69, and the outer spring tines 70 and 71. The front end portions are bent at an obtuse angle to form inner bent front end portions 68a, 69a, 70a, 71a.

FIG. 23 is a rear perspective view of the herbicidal body 64 in use. The herbicidal body 64 is fixed by inserting the upper shank 65 through the herbicidal shank holder 19 and directly above the row of rice lines R. . The left and right intermediate spring tines 68 and 69 and the left and right outer spring tines 70 and 71 perform inter-row weeding at the tip, and the inter-plant weeding at the tip intersection 72 of the left and right inner spring tines 66 and 67. The inter-strain weeding action of the tip intersection 72 is the same as described in FIG. The outward curved spring tine weeding body 64 is a weeding body capable of simultaneous weeding between streaks and strains.

FIG. 24 is a rear front view of the bear hand spring tine weeding body 74. The weeding body 74 is configured to have a wire diameter of 3.5 mm, a total width of 270 mm, and a tine length of 420 mm, and the upright bar 75 b of the inverted T-shaped shank 75 is attached to the weeding body shank holder 19. At the left and right of the center of the lower bar 75a (width 22mm, length 200mm, thickness 9mm) of the inverted T-shaped shank 75, the heads of the inner bending right inner spring tine 76 and the inner bending left inner spring tine 77 are stopped respectively. The front end bending portion 76a and the front end bending portion 77a are brought into contact with each other by fixing with bolts 82. This herbicidal body 74 is provided immediately above the row of rice stocks, the left and right inner spring tines 76, 77 perform inter-weeding, and the left and right middle and outer spring tines 78, 80, 79, 81 are inter-weeding. Is to do.

  At both ends of the lower side bar 75a, the heads of the tip inner bending right intermediate spring tine 78 and the tip inner bending right outer spring tine 80 are overlapped, respectively, and the tip inner bending left intermediate spring tine 79 and tip inner bending left outer spring are respectively overlapped. The heads of the tines 81 are overlapped and fixed with set bolts 82, respectively. Reference numerals 78a, 79a, 80a, and 81a denote 55 mm-long inner end bent portions bent at an obtuse angle.

  FIG. 25 is a right side view of the herbicidal body 74 in use. At the time of use, it attaches to the cross beam 18 through the weeding body shank holder 19 at an angle of about 60 ° with respect to the horizontal plane HL. FIG. 26 is an exploded perspective view of the right end portion of the bear hand spring tine weeding body 74, wherein the annular heads of the inner bending right middle spring tine 78 and the inner bending right outer spring tine 80 are overlapped, and the set bolt 82 is communicated. The lower side bar 75a is screwed into the screw hole 83 at the right end and tightened. In the figure, 85 is a round washer and 84 is a spring washer. In the same way, a left inner spring tine 79 at the front end bending and a left outer spring tine 81 at the front end bending are also attached to the left end portion of the lower bar 75a.

  FIG. 27 is a rear perspective view of the square outward bent double spring tine weeding body 86. In the figure, reference numeral 91 denotes an inverted T-shaped shank, which is inserted through the herbicidal shank holder 19 and the weeding body 86 is attached to the cross beam 18. This herbicidal body 86 is a spring steel having a wire diameter of 5 mm, a height of 350 mm, and the outer distance between the square bent right outer spring tine 87 and the square bent left outer spring tine 89 is 300 mm. The outer spacing between the square bent right inner spring tine 88 and the left inner spring tine 90 is 225 mm.

  The left and right outer spring tines 87 and 89 are bent 135 degrees downward 135 mm from the upper end and further bent 133 degrees inside at a position 158 mm below to form a lower inner bent portion 94. The lower inner bent portion 94 has a length of 130 mm, and its end is formed at the crossing lower end portion 93. The left and right bolts 92 are inserted into both end portions of the lower side portion 91a of the inverted T-shaped shank 91 through the upper end mounting ring portions 105 of the left and right outer spring tines 89 and 87, and are fixed at a left-right interval of 195 mm.

  Reference numeral 88 denotes a square bent right inner spring tine, and 90 denotes a square bent left inner spring tine. The upper end mounting ring portion 105 is attached to the lower side portion 91a with a bolt 92 at a left / right interval of 85 mm. Is formed in a reduced shape in a similar shape, and the end portion of the lower inner bent portion 95 is the crossing lower end portion 96 (see FIG. 29). FIG. 28 is a right side view of the square outward bent double spring tine weeding body 86 in use. As shown in the figure, the lower inner folded portion 95 is positioned in front of the lower inner folded portion 94, and after performing inter-weeding at the cross lower end portion 96, the cross lower end portion 93 again weeds the stock. Double weeding. FIG. 29 is a plan view taken along the line FF in FIG. 28, and shows that the intersection lower end portions 96 and 93 are positioned on a straight line.

  FIG. 30 is a rear perspective view of the square outwardly bent single spring tine weeding body 97. The square bent right spring tine 100 and the square bent left spring tine 101 have their heads fixed to the opposite ends of the lower bar 99 of the inverted T-shaped shank 98 with mounting bolts 104 and 104, respectively. The right spring tine 100 and the left spring tine 101 have the same configuration as the right outer spring tine 87 and the left outer spring tine 89 of the double spring tine weed body 86, respectively. Reference numerals 102 and 103 denote a right lower inward bent portion and a left lower inward bent portion, respectively, and the terminal portion forms an intersecting portion 102a. The alternate long and short dash line in the figure can change the position of the intersection 102 a by turning the square bent right spring tine 100 and the square bent left spring tine 101 inwardly around the mounting bolt 104.

  The square outward bent double spring tine weeding body 86 and the square outward bent single spring tine weeding body 97 described above are herbicidal bodies that perform inter-strain weeding at the lower ends 93, 96 and 102a. The herbicidal body 86 is effective when there are many weeds, and the herbicidal body 97 is suitable when there are relatively few weeds. And it is used together with the outer curved spring tine weeding body 47 including a sickle blade, for example, which can weed the streak.

  FIG. 31 is a rear front view of the coil spring tine weeding body 106. In FIG. 31, 114 is an inverted T-shaped shank and 115 is a lower bar. The right coil spring tine 107 and the left spring tine 110 are made of spring steel having a length of 430 mm and a wire diameter of 3.5 mm, and coil portions 109 and 112 having an inner diameter of 30 mm are formed in the middle. Reference numeral 108 denotes a lower left inner bending curve portion, and 111 denotes a lower right inner bending curve portion. The intersection part 113 is a part which weeds between strains.

The right coil spring tine 107 and the left spring tine 110 have heads formed at the upper end mounting ring portion 117, which are fixed to both ends of the lower side bar 115 with mounting bolts 116, respectively. The lower bar 115 is a flat steel plate having a thickness of 6 mm, a width of 26 mm, and a length of 235 mm. The left-right distance between the right coil spring tine 107 and the left coil spring tine 110 is 200 mm.

  FIG. 32 is a right side view of the coil spring tine weeding body 106 in use, and a dimension L between the center of the coil portion 109 and the center of the mounting bolt 116 is 90 mm. The lower end portion of the inverted T-shaped shank 114 is bent so that the weeding body 106 moves forward at an angle of 60 degrees with respect to the horizontal plane HL. The coil spring tine weeding body 106 is for inter-strain weeding, and can be used for interstitial weeding, for example, in combination with the bear hand spring tine weeding body 74.

  FIG. 33 is a rear perspective view of the gate-shaped weeding body. In the figure, reference numeral 119 denotes an inverted T-shaped coil spring shank. A left coil portion 120 and a right coil portion 121 having a wire diameter of 9 mm and an outer diameter of 60 mm are arranged side by side at the center of the upper surface of the horizontal bar 122, and the coil start end is the upper surface of the horizontal bar 122. The end portion is vertically raised upward to form a shank 119a. The shank 119a is inserted into the herbicidal shank holder 19 and is fixed by adjusting the vertical position. The horizontal bar 122 is a flat steel plate having a length of 280 mm, a width of 25 mm, and a thickness of 6 mm.

  Reference numeral 123 denotes a left-handed inverted L-shaped right flat steel column body, and 124 a right-turned inverted L-shaped left flat steel column body, using a flat steel plate having a thickness of 6 mm and a width of 22 mm, and the height to the coil mounting screw rod 128 Is 300 mm. Reference numeral 125 denotes a mounting bolt, which fixes the heads of the left bent inverted L-shaped flat steel column body 123 and the right bent inverted L-shaped flat steel column body 124 to the horizontal bar 122. When the mounting bolt 125 is loosened, the left-turned inverted L-shaped right flat steel column body 123 and the right-turned inverted L-shaped flat steel column body 124 can turn left and right around the longitudinal axis of the mounting bolt 125 (FIG. 35). reference).

  126 is a right outer bending short coil spring tine, 127 is a right outer bending long coil spring tine, 131 is a left outer bending short coil spring tine, 132 is a left outer bending long coil spring tine, and the short coil spring tine has a wire diameter of 5 .5mm, long coil spring tine has a wire diameter of 5mm, both are spring steel. The reason why the short coil spring tine has been changed to a long spring coil spring tine with a wire diameter of 5.5 mm is to allow the medium tillage. 129 and 133 are short tine coil portions (outer diameter 65 mm), and 130 and 134 are long tine coil portions (outer diameter 55 mm). FIG. 34 is a side view of the left portion of the portal-type herbicide. In FIG. 34, the left outer bent short coil spring tine 131 and the left outer bent long coil spring tine 132 attached to the lower end of the right bent inverted L-shaped left flat steel column 124 are bent at the left end in the forward direction F. It has been.

  FIG. 35 is an exploded perspective view of the main part of FIG. As shown in FIG. 35, two bolt through holes 136 are provided at both ends of the horizontal bar 122 for adjustment. A screw hole 137 is provided in the head portion bent at a right angle of the left bent inverted L-shaped right flat steel column body 123 and the right bent inverted L-shaped left flat steel column body 124, and the mounting bolt 125 described above penetrates the spring washer 135 and the bolt. It passes through the hole 136 and is screwed into the screw hole 137 to fix the left-turned inverted L-shaped right flat steel column body 123 and the right-turned inverted L-shaped left flat steel column body 124 to the horizontal bar 122. The coil mounting screw rod 128 passes through the lower ends of the left-turned inverted L-shaped right flat steel column body 123 and the right-turned inverted L-shaped left flat steel column body 124, and is screwed so that both ends protrude from the inner and outer surfaces. ing.

  FIG. 36 is an exploded perspective view showing the attachment of the coil spring tine on the right side of the portal herbicidal body 118, and the coil part mounting screw rod 128 is provided at the lower end portion of the left bent inverted L-shaped right flat steel column 123 as described above. Both end portions are provided so as to protrude from the inner and outer surfaces. A round washer 139, a spring washer 140, and a nut 140 are sequentially attached to the right side on the right side, and a ring attachment part at the center of the short tine coil part 129 is externally fitted to the coil part attaching screw rod 128, and then the round washer is sequentially outward. 142 and a spring washer 143 are externally fitted and fixed with a nut 144. When the nut 144 is loosened, the right outer bent short coil spring tine 126 can be swung up and down to adjust the mounting angle with respect to the forward direction.

  Similarly, the ring attachment portion at the center of the coil portion 130 of the long tine is externally fitted to the coil portion attachment screw rod 128 protruding to the left side of the lower end portion of the left bent reverse L-shaped right flat steel column 123, and sequentially outward. A round washer 142 and a spring washer 143 are externally fitted, and a nut 144 is fastened to the coil portion mounting screw rod 128, and a right outer bent long coil spring tine 127 is attached to the lower end portion of the left bent inverted L-shaped right flat steel column 123. It is designed to be fixed.

  FIG. 37 is a side view of the right outer bending short coil spring tine 126 in FIG. 33, and FIG. 38 is a plan view of the same. 37 and 38, L1 is a dimension of 143 mm from the point O of the short tine coil portion 129 to the bending point, and L2 is a dimension of 230 mm from the outer end of the short tine coil portion 129 to the right bending point. The bending angle β is 67 degrees, and the right bending width w1 is 110 mm.

  39 is a side view of the right outer bent long coil spring tine 127 on the right side in FIG. 33, and FIG. 40 is a plan view of the same. In FIG. 39, reference numeral 130 denotes a long tine coil portion having an outer diameter of 55 mm. L3 is a total length 34 cm in side view of the right outer bent long coil spring tine. L4 is a distance of 29 cm from the coil attachment portion O point to the right folding point, and L5 is a distance of 205 mm from the O point to the first folding point. a is a downward dimension of 12 mm from the first folding point to the left folding point, and b is a downward dimension of 34 mm to the folding tip left of the first folding point. In FIG. 40, the bending angle γ of the long tine right-bending portion 145a is 67 degrees, and the right-bending width w2 is 120 mm.

  The left outer bent short coil spring tine 131 and the left outer bent long coil spring tine 132 on the left side of FIG. 33 are respectively connected to the right outer bent short coil spring tine 126 of FIG. 37 and the right outer bent long coil spring tine 127 of FIG. The part is formed in the same shape except that it is bent to the left.

FIG. 41 is a rear perspective view of the sector spring tine weeding body 146. Reference numeral 147 denotes a steel plate tine upper end bundle, which wraps and tightens the right straight tines 148, 148a, 148b, the outer curved right central tine 149 and the outer curved left central tine 150, and the upper end of the left straight tine. Yes. Although the reference numerals are omitted, a straight tine is disposed on the left side symmetrically with the right side. These tines are spring steel with a wire diameter of 4 mm. The left and right outer curved central tines 149 and 150 are 325 mm downward from the lower edge of the upper bound body 147, and the straight tine is sequentially shortened by about 10 mm outward. Reference numeral 151 denotes a weeding body shank projecting from the upper end of the upper end bundle 147. Reference numeral 152 denotes a herbicidal body connecting portion that detachably connects the herbicidal shank 147.

  42 is a right side view of the sector spring tine weeding body 146. FIG. The fan-shaped spring tine weeding body 146 is formed in a projecting arc having a central portion projecting about 65 mm, and is inclined about 60 degrees with respect to the horizontal plane HL when used. Reference numeral 153 denotes a cylindrical body, and a set screw 154 for fixing the inserted weeding body shank 151 is screwed to the upper surface. The lower end of the weeding body mounting shank 155 is fixed at an angle of 40 degrees with the upper extension line of the front end surface of the cylindrical body 154. The herbicidal body attaching shank 155 is inserted and fixed to the herbicidal body shank holder 19 and the fan-shaped spring tine weeding body 146 is attached to the cross beam 18 and arranged between the strips.

  FIG. 43 is a right side view in which the fan-shaped spring weeding body 146 is attached to the weeding body connecting portion 152 in an inverted concave arc shape. The fan-shaped spring tine weeding body 146 in the shape of a concave arc works to suppress weeds that have been weeded and floated between the strips, and sink them in the mud to kill them. In order to switch the fan-shaped spring weeding body 146 to a projecting arc shape or a concave arc shape, the weeding body shank 151 may be inserted into the cylindrical body 153 with the front or back side and fixed with a set screw 154, which can be performed with a simple operation. In FIG. 4, the state which has arrange | positioned the fan-shaped spring tine weeding body 146 to the horizontal beam 18 of the last row via the weeding body connection part 152 was shown. Further, FIG. 4 shows an outer curved spring tine weeding body 64 in the front row of horizontal beams 18, an outer curved spring tine 47 including a sickle blade in the second row of horizontal beams 18, and the third row of horizontal beams in the front row. The aspect which arrange | positioned the outward curved spring tine weeding body 64 between the strips is shown.

  FIG. 44 is a rear front view of a fan-shaped spring tine weeding body 156 having a different tine upper end bundle. The fan-shaped spring tine weeding body 156 is different from the fan-shaped spring tine weeding body 146 in that the tine upper bound body is made of plastic and does not use the weeding body connecting portion 152. The other configuration is the same as that of the sector spring tine weeding body 146.

  FIG. 45 is an enlarged front perspective view of the upper part of FIG. Reference numeral 157 denotes a plastic tine upper bound body, which is formed by wrapping the upper ends of the straight tine 148 and the left and right outer curved central tines 149 and 150. Reference numeral 158 denotes a set bolt that fixes the lower end of the lower diagonally downward shank 159 (see FIG. 46), and 161 denotes a bolt hole. Reference numeral 160 denotes a shank fitting groove, which is formed into a rectangular groove having the same shape on the front and back surfaces, and the lower part of the lower diagonally downward shank 159 is just fitted (see FIGS. 46 and 47).

  FIG. 46 is a right side view of FIG. 44, in which the sector spring tine 156 is used in a projecting shape and weeds the streak. 46, when the fan-shaped spring tine 156 is attached to the inside of the lower end portion of the diagonally downward shank 159 so that the weeds floating between the strips are pushed into the mud and killed in the same manner as the fan-shaped spring tine weeding body 146 described in FIG. It is a right view.

  FIG. 48 is a perspective view of the shank shank 159 at the lower end diagonally downward in FIG. In the drawing, the upward inclination angle δ of the shank is 43 degrees, which is an appropriate angle for changing the sector spring tine 156 into a projecting arc shape or a concave arc shape.

  The weeding body group is arranged on the machine frame that is connected to the rear part of the passenger traveling body that travels between the streaks of paddy fields, and the weeding body in the herbicidal body group is weeded between the streak and the stock at the same time. Various herbicidal bodies, such as those that weed and those between plants, are provided, so that they can be used for accurate weeding according to the state of the paddy field. In addition, since the weeding body is formed by bending the spring steel, it is possible to realize a configuration that does not use a rotating mechanism or the like and reduce the manufacturing cost. Therefore, the herbicidal body is highly likely to be used for manufacturing paddy field weeding machines.

The whole side view of the paddy weeder concerning this invention. The principal part top view in the paddy field of the paddy weeder concerning this invention. The principal part front view of this invention paddy weeder. The principal part back perspective view similarly. FIG. 3 is a front perspective view of the right end portion of FIG. 3 is a front view of the main part. The top view of FIG. FIG. 7 is a cross-sectional view taken along line AA in FIG. 6. BB sectional drawing of FIG. 3 is an exploded perspective view of the main part. Sectional drawing of the CC arrow of FIG. The side view of the weeding body attachment part in FIG. FIG. The rear front view of the spring tine weeding body with a sickle blade. The top view of the sickle blade part in FIG. FIG. 15 is a front view taken along line D-D in FIG. 14. The longitudinal cross-sectional view of the EE line arrow of FIG. The disassembled perspective view of the spring tine upper end part fixing body of FIG. FIG. The rear perspective view at the time of use of the weeding body shown in FIG. FIG. 15 is a main portion rear perspective view for explaining the herbicidal action of the herbicide shown in FIG. The rear front view of an outward curved spring tine weeding body. The rear perspective view at the time of use of the weeding body shown in FIG. The rear front view of a bear hand spring tine weeding body. The right side view at the time of use similarly. The exploded perspective view of a right end part similarly. The rear perspective view of a square outward bending double spring tine weeding body. The right side view at the time of use similarly. FIG. 28F is a plan view taken along line F-F. The rear front view of a square outward bending single spring tine weeding body. The rear front view of a coil spring tine weeding body. The right side view at the time of use similarly. The rear perspective view of a gate-shaped weeding body. Similarly, the left side view. FIG. 34 is an exploded perspective view of the main part of FIG. The disassembled perspective view which shows the attachment of the coiled spring tine on the right side of a portal-type weeding body. The side view of the short coiled spring tine on the right side in FIG. FIG. The side view of the long coiled spring tine on the right side in FIG. FIG. The rear perspective view of a fan-shaped spring tine weeding body. Similarly right side view. The right view which used the weeding body of FIG. 41 for turning over. The rear front view of the fan-shaped spring tine weeding body from which a tine upper end binding body is different. The upper expansion front perspective view of FIG. The right view of FIG. The left side view which used the fan-shaped spring tine weeding body of FIG. 44 for the inside out. The perspective view of the upper shank in FIG.

Explanation of symbols

1 Passenger aircraft 4 Three-point link hitch mechanism
9 Airframe
12 column
13 Boat-shaped planing board 16 Slide bracket
16a Cross girder holder vertical shank fitting hole
16b Cross beam fitting hole 17 Cross beam holder
17a Cylindrical part
17b Vertical shank
18 Cross beam 19 Weed body shank holder 20 Weed body group 43 Cylindrical part
44 Weeding body shank insertion vertical hole 47 Outer curved spring tine weeding body including sickle blade 48 Outer curved spring tine with right sickle blade 49 Right sickle blade
50 Curved spring tine with left sickle blade
51 Right sickle blade
52 Right outer curved long spring tine 53 Left outer curved long spring tine 54 Right outer curved short spring tine 55 Left outer curved short spring tine 56 Rubber band 57 Plastic tine fixing body 59 Weeding body shank 60 Crossing point 61 Stop bolt hole 63 Shank insertion groove of the weeding body 64 outward curved spring tine weeding body 66 right outer curved inner spring tine 67 left outer curved inner spring tine 68 right outer curved intermediate spring tine 69 left outer curved intermediate spring tine 70 right outer curved outer spring tine 71 Left outer curved outer spring tine 72 Tip intersection 73 Plastic tine fixing body
74 Bear Hand Spring Tine Weeding Body 75 Reverse T-Shank Shank 75a Lower Bar 75b Upright Bar 76 Inward Bend Right Inner Spring Tine 76a End Bend
77 Bend left inner spring tine 77a Bend left inner spring tine 77a Bend right end intermediate spring tine 78a Bend right inner spring tine 78a Bend left end 79b Bend left inner spring tine
80 Inward bending right outer spring tine 81 Inward bending left outer spring tine 81a Inward bending portion 86 Square outward bent double spring tine weeding body 87 Square bent right outer spring tine 88 Square bent right inner spring tine 89 Square Bending left outer spring tine 90 Square bending left inner spring tine 91 Reverse T-shaped shank 93 Crossing lower end 96 Crossing lower end 97 Square outward bending single spring tine weeding body 102a Crossing
106 Coil Spring Tine Weeding Body 109 Coil Part 112 Coil Part 113 Crossing Part 118 Portal Weeding Body 119 Inverted T-Shaped Coil Spring Shank 120 Left Coil Part 121 Right Coil Part 122 Horizontal Bar 123 Left-curved Inverted L-shaped Right Flat Steel Column 124 Right-handed reverse L-shaped left flat steel column 126 Right outer bent short coil spring tine 127 Right outer bent long coil spring tine 128 Coil mounting screw rod 131 Left outer bent short coil spring tine 132 Left outer bent long coil spring tine 146 Fan-shaped spring Tyne Weeding Body 152 Weeding Body Connecting Portion 153 Cylindrical Body 154 Set Screw 156 Fan-shaped Spring Tine Weeding Body 157 Plastic Tine Upper Bundled Body 160 Shank Inserting Groove P Rice Plant
Q Weed D Width of rice streak
e Width between rice stocks
R Rice line
F Forward direction

Claims (14)

Connected to the rear part of the passenger traveling machine that runs between the rice strips of the paddy field, it is connected to the rear part of the front center from the left and right along the forward direction, and a plurality of cross girders perpendicular to the forward direction. Is mounted on the front edge of the left and right vertical girders, and left and right boat-shaped planing boards that touch the surface of the rice pad so that the height can be adjusted, and on the row of rice and between the rows. A paddy field weeding machine comprising a group of herbicidal bodies made of spring tine of steel bars to be installed. The machine frame has a slide bracket having a fitting hole in the vertical direction through which the vertical girder is inserted, and a vertical shank that is inserted through the fitting hole of the slide fitting so that the vertical position can be adjusted. A cross girder holder having a cylindrical part fixed at right angles to the advancing direction at the upper end of the girder, and the transverse girder is inserted into the cylindrical part of the cross girder holder and fixed so as to tilt forward and backward with respect to the advancing direction. The paddy weeder according to claim 1, wherein The herbicidal body in the herbicidal body group is attached to the cross beam with a herbicidal shank holder so that the left and right positions can be adjusted, and a shank projecting from the top of the herbicidal body is inserted through the shank insertion hole of the herbicidal body shank holder, The paddy weeding machine according to claim 1 or 2, wherein the paddy weeding machine is attached and fixed obliquely downward rearward. A herbicidal body in the group of herbicidal bodies has an upper end fixed to a tine fixing body, and an intermediate portion is outwardly bent at the lower ends of the left and right spring tines, with the blade edges facing forward and reverse in the forward direction. An outer curved spring tine including left and right sickle blades, which is shaped like a letter and has a penetration angle with respect to a horizontal plane to fix the sickle blades, and is located behind the outer curved spring tine including the left and right sickle blades, and the tine fixing body The left and right short spring tines, each of which has a base end fixed to each other and the middle part curved outward, and extend downward and rearward from the lower end of the short spring tine along the short spring tine. A sickle blade comprising: a long spring tine bent and crossed; a rubber band externally fitted to a joint portion of the short spring tine and the long spring tine; and a shank projecting from an upper end of the tine fixing body. The paddy field according to claim 1, 2 or 3, wherein the paddy field is an outer curved spring tine weeding body. Weeding machine. The paddy field weeding machine according to claim 4, wherein the tine fixing body is a plastic tine fixing body formed by placing an upper end portion of a spring tine at a desired position and pouring plastic. 6. The plastic tine fixing body is formed by forming a shank insertion groove of a herbicidal body in a vertical center portion on the back surface and providing a stop bolt hole on a vertical center line of the shank insertion groove. The paddy weeding machine described. The herbicidal body in the herbicidal body group has left and right outer curved inner spring tines that are fixed to the tine fixing body with the upper end fixed, the intermediate part bent outward and the tip bent inward, and the intermediate part The left and right outer curved intermediate spring tines that are bent outward and the tip is bent inward, and the left and right outer spring tines that are bent outward and the tip is bent inward are sequentially arranged forward from the rear. 4. A paddy weeder according to claim 1, wherein the paddy weeder is an outwardly curved spring tine weeding body that is attached to a transverse girder of the machine frame with a rearward downward inclination in contact with a horizontal plane. The herbicidal body in the group of herbicidal bodies detachably fixes the upper ends of the left and right outer spring tines and the left and right intermediate spring tines, which are bent in the tip, to both ends of the lower side bar of the inverted T-shaped shank. At the middle part of the lower bar of the shank, attach the upper ends of the left and right inner spring tines that are in contact with the inner bending tips, and insert the upright bar of the inverted T-shaped shank into the weed body shank holder attached to the cross beam. The paddy weeder according to claim 1, 2 or 3, which is a bear hand spring tine weeding body that is fixed to the rear obliquely downward slope. The herbicidal body in the herbicidal body group is a square bent right outer spring tine having an upper part bent outwardly at each end of the lower bar of the inverted T-shaped shank and a distal end bent into a square inward. The head of the square bent left outer spring tine is detachably attached, the upper part is bent outwardly from the opposite side of the lower bar of the inverted T-shaped shank, and the tip is bent inwardly. A square outward bent double spring tine weeding body that attaches the heads of the right and left inner spring tines to the right and left sides of the square bent and detachable, and intersects the tips of the left and right outer and inner spring tines. The paddy field weeding machine according to claim 1, 2 or 3. The herbicides in the group of herbicides are square bent right spring tine and square bent with the top bent at the opposite ends of the bottom bar of the inverted T-shaped shank and the top bent at the square inward, respectively. 4. A paddy weeding machine according to claim 1, which is a square outwardly bent single spring tine weeding body in which the head of the left spring tine is detachably attached and the tip ends of the left and right spring tines are crossed. The herbicidal body in the group of herbicidal bodies detachably attaches heads to both ends of the lower bar of the inverted T-shaped shank, forms a coil in the middle part along the forward direction, and hangs the tip part inside The paddy field weeding machine according to claim 1, which is a coil spring tine weeding body curved and intersected with each other. The herbicidal body in the group of herbicidal bodies has left and right coil start ends fixed to the upper surface of a horizontal bar, and the coil end portions are extended upward and arranged side by side to form an inverted T-shaped coil spring shank. The left and right ends of the left-hand and right-hand bent L-shaped flat steel columns with the upper ends bent at right angles to the left and right sides are pivotally fixed around the vertical axis, respectively. Left and right short coil spring tines and long coil spring tines that extend the terminal ends of the coils at the base end portions and bend the terminal portions outward with respect to the advancing direction on the outer and inner sides of the lower end portions of the left and right column bodies, respectively. The paddy weeder according to claim 1, 2 or 3, wherein the paddy weeder is mounted around a coil mounting shaft so as to be fixed in a vertically swingable manner and formed into a gate-shaped weeding body. The herbicidal body in the herbicidal body group is fixed to a steel plate tine upper end portion binding body having a shank projecting from the upper end, and the upper ends of a plurality of tines are fixed to form a sector-shaped sector spring tine, and the upper end A cylindrical body through which the shank is inserted is fixed to a lower end portion of the vertical shank in a slanting downward downward direction along the forward direction, and a herbicidal body connection body for inserting and fixing the vertical shank to the herbicidal shank holder is attached to the machine frame. The paddy field according to claim 1, 2 or 3, wherein the paddle is attached to a transverse beam, and the upper end shank is attached to a cylindrical body of the herbicidal body connection body in a concave arc shape by projecting or turning over the salient arc-shaped spring tine. Weeding machine. The herbicides in the group of herbicides are fixed at the upper end of a plurality of tines to a plastic tine upper bound body projecting a shank bent obliquely upward from the base end at the upper end, and the side view has a projecting arc shape. It is formed into a sector spring tine, and this sector spring tine is struck or turned over to form a concave arc, and the upper end shank is disposed between the mounting strips on a herbicidal shank holder attached to the cross beam of the machine body. The paddy weeder according to claim 1, 2, or 3.

Images