JP2006014616A - Tine structure of rotary weeding wheel attached to cultivator and weeding wheel furnished with said tine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a weeding tine and a rotary weeding wheel to weed by stirring the surface of hardened and highly viscous ridged field. <P>SOLUTION: The arm of a weeding tine rotating according to the motion of a rotary base is concavely curved toward the rotating direction to form a protrusion having a sharp tip edge along the curved longitudinal direction of the back face to contact with a ridged field. A plurality of weeding tines concavely curved in the rotating direction are radially placed slantly upward on the circumferential edge of the rotary base and a plurality of ground-contacting rotary driving legs are radially formed slantly downward on the circumferential edge. One or more protrusions having sharp tip end are formed along the longitudinal direction of the ground-contacting face of the weeding tine to disintegrate and stir the ridge surface with the protrusions of the frame according to the rotation and traveling of the weeding wheel. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a weeding tine of a rotary weeding device attached to an agricultural working machine such as a cultivator and an improvement of a weeding wheel to which this tine is attached.

  As shown in FIG. 5, weeding work in a wide field is generally performed by attaching a weeding device 2 to a working machine such as a cultivator 1 towed by a tractor or the like. As these weeding devices 2, a plurality of arm-shaped weeding tines 4 are attached radially from the edge of the rotating base 3 obliquely upward, and a plurality of rotary drive legs 5 are radially formed downward from the edge of the rotating base 3. It is known that a pair of left and right weed wheels 6, 6 are arranged in a downwardly inclined manner symmetrically with respect to the reed using an attached weed wheel 6.

  As shown in FIG. 6, the weeding wheels 6 and 6 of this type of rotary weeding device 2 are attached to the lower end of the attachment frame 7 so as to be rotatable in an inclined manner, and through a balance lower link 9 having a counterweight 8. The weed tine 4 connected to the cultivator main body frame and rotated downward follows the uneven surface of the ground surface so as to come into contact with the ridge at a predetermined pressure. Thus, as the rotary drive leg 5 of the weeding wheel 6 towed together with the cultivator 1 rotates with grounding resistance, the tine 4 that rotates downward stirs the ground surface 1 to 3 cm of the reed, thereby the weed ground. Soil is removed from the middle root to suppress the active root action.

  The tine of the conventional rotary weeding wheel uses a curved metal rod and improves the stirring effect by bending the tip of the tine rod into a circle as seen in the attached FIG. 5, FIG. 6 or Japanese Patent No. 3532875. However, when the ground surface dries and hardens after rain or the like, the tine does not slide on the ground and is not stirred.

  Accordingly, the object of the present invention is to easily cut into the ground surface even when the surface is hardened by drying after rain, or to the ground surface which is originally clay-like and hard, to break up the soil and separate weeds. It is to provide a weeding wheel tine that can be used.

  Another object of the present invention is to provide a rotary weeding wheel having the tine attached thereto.

  In order to achieve the above object, the tine structure of the present invention is a weeding tine that is arranged radially from the edge of the rotating base of the rotating weeding wheel obliquely upward, and that weeds that rotate with the rotating base. The tine arm is curved in a concave shape in the direction of rotation, and has one or more protrusions formed with an acute blade shape along the longitudinal direction of the curved arm on the back surface that contacts the collar surface. It is characterized by that.

  In the tine structure, a ridge-facing concave surface other than the projecting portion of the arm may be formed in a cross-sectional mountain shape or an acute angle blade shape along the longitudinal direction.

  In order to achieve the above-mentioned object, the rotary weeding wheel of the present invention has a plurality of weeding tines curved in a concave shape in the turning direction at an edge of the rotating base attached to the frame of the cultivator. In the rotary weeding wheel, which is arranged radially, and a plurality of ground rotating drive legs are arranged radially from the edge of the rotating base toward the lower side, and are attached in a downwardly inclined manner toward the farm surface. The weeding tine forms one or a plurality of protrusions having a sharp-edged tip at the bottom surface longitudinal direction of the curved arm that contacts the ridge surface, and the frame of the weeding ring rotates as the weeding wheel rotates. The projection is characterized by crushing and stirring the surface of the ridge.

  Since the weeding tine of the present invention and the rotating weeding wheel using the same are integrally provided with a protrusion whose tip is formed in an acute-angled blade shape on the surface (back surface) that comes into contact with the reed as it rotates downward, the surface of the reed The blade-shaped projections of the weeding tine that descends and rotates with the rotation of the rotating base, even when hardened or clayey, easily bite into the ground surface of the reed, preferably 1 to 3 cm deep Stir the ground with. Therefore, the herbicidal tine reliably shakes the soil from the roots of the weeds to improve the weeding effect.

  By forming the recesses between the projections of the weeding tine in the same acute-angled blade shape or cross-sectional ridge shape, the heel surface contacting the back surface of the tine is evenly stirred, and the weeding is performed slowly.

  The arm body of each weeding tine of the weeding wheel is concavely curved in the rotation direction, and the blade edge ridge of the protrusion is formed in the curved longitudinal direction of the arm body, so that the soil stirred by the weeding tine is on the outside Without being pushed out, it is brought closer to the inside of the curve and separated from the weeds by the blade-shaped projections, so that weeding efficiency is improved.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
The rotary weeding wheel 6 of the present invention fixes a plurality of weeding tines 4 (or arms) that are curved and extended upward to an edge 3 ′ of a rotating base 3 that is rotatably connected to the weeding device 2 and is rotated. A plurality of rotary drive legs 5 extending downward from the edge 3 'of the base 3 are radially attached, and this basic structure is the same as that of the prior art.

  As shown in FIGS. 1 and 2, the herbicidal tine 4 of the present invention has an elongated shape that extends obliquely upward and outward from an attachment base 10 to an edge 3 ′ of the rotating base 3 and rotates integrally with the rotating base 3. The arm body 11 has an arm body 11 that extends linearly from the mounting base 10 obliquely upward, and is formed into an arm that is curved in a concave shape in the turning direction. In other words, the projection 13 is integrally provided with the tip formed into an acute blade shape 12 along the longitudinal direction of the back surface that comes into contact with the flange surface during the downward rotation.

In the embodiment shown in FIGS. 1 and 2, the two blade-shaped protrusions 13a and 13b are formed at predetermined intervals along the curved longitudinal direction of the arm body 11. However, the height and length of the protrusions, the distance, etc. The length can be appropriately set according to the length of the arm body 11 or the situation of the heel.
When the arm main body 11 of the weeding tine 4 is provided with a plurality of protrusions 13a, 13b,..., The stirring can be changed by changing the protrusion height. In this case, the leg height of the distal protrusion 13b is preferably shorter than the proximal protrusion 13a as in the illustrated embodiment so as not to damage the roots of the crop.

  The tip blades 12 of the projections 13a and 13b according to the illustrated embodiment are formed in a chevron shape with both sides inclined. Therefore, the blade-shaped ridge lines of the protrusions 13a and 13b have different grounding directions along the curve of the arm main body 11, and the weeding tine 4 rotates in contact with the curved structure of the arm main body 11. The weeding agitation is activated when the soil of the straw is moved inward.

  In the embodiment of FIGS. 1 and 2, as a preferred example, the concave longitudinal direction between the projections 13a and 13b of the arm body 11 is also formed in a mountain-shaped ridge line 14 inclined on both sides, and here again the shallow stirring and weeding of the weed surface Separation is made.

The weeding tine 4 of the embodiment of FIGS. 1 and 2 is integrally provided with a mounting base 10 extending inward of the arm body 11 at the base, and downward from the edge 3 ′ of the rotating base 3 toward the outside. The extending rotation drive leg 5 is formed integrally with the arm main body 11 of the weeding tine 4, thereby reducing the manufacturing cost and simplifying the attaching / detaching operation to the rotating base 3.
In this case, it is desirable that the rotary drive leg 5 is also formed with a sharp edge or a square shape at each edge to improve the ground contact of the rotary drive.

FIG. 3 shows a rotary weed wheel using the weed tine 4 of the present invention. The tine member of FIG. 1 and FIG. 2 in which the arm main body 11, the mounting base 10 and the rotary drive leg 5 of the weed tine 4 are integrated. A large number of weeding tines 4 extend radially upward from the edge 3 ′ of the rotating base 3 with the concave curved side directed in the direction of rotation, and the rotary drive leg 5 radiates downward from the edge 3 ′ of the rotating base 3. It is being fixed to the edge of the rotation base 3 through the attachment base 10 so that it may be arrange | positioned.
The present invention is not limited to this configuration, and the rotating base, the weeding tine frame, the mounting portion, and the driving leg portion may be formed into an integral structure, or the respective members may be assembled and integrated.

  The pair of rotary weeding wheels 6 and 6 are attached to the lower end frame 7 of the left and right lower links 9 of the weeding device 2 so as to be inclined downwardly toward the left and right sides of the rod as in the conventional example of FIG. The projections 13a and 13b of the weeding wheel 6 that is turned downward are bitten into the ground surface of the reed at a predetermined depth (about 1 to 3 cm) and turned.

FIG. 4 is an operation comparison diagram of the conventional example and the weeding wheel according to the present invention. The left half of the figure shows the operation of the conventional example, and the right half shows the operation of the present invention.
In the figure, reference numeral 15 is a ridge, reference numeral 16 is a crop, and reference numeral 17 is a crack caused by the ground contact of the weeding tine 4. As is apparent from this explanatory diagram, in the conventional example, the weeding tine slips on the ridge surface. In contrast, in the present invention, the blade shape 12 of the projections 13a and 13b bites into a predetermined depth of the ridge surface 15 to generate many complicated cracks, and the soil surface is stirred to remove soil from the weed root. Efficient weeding is performed by shaking the

  Thus, the present invention improves the herbicidal effect by contributing to the cultivation of crops by reliably agitating the soil even if the weeds are difficult to weed with a rotating weed wheel.

It is a side view of the weeding tine by this invention. It is a top view of the weeding tine by this invention. 1 is an overall configuration diagram of a rotary weeding wheel according to the present invention. It is an operation | movement comparison figure of the weeding ring of a prior art example, and the weeding ring of this invention. It is general use explanatory drawing of the weeding wheel attached to the cultivator, and a circle shows a principal part. It is general installation explanatory drawing of a weeding wheel, and a circle shows a principal part.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Cultivator 2 ... Weeding device 3 ... Rotation base 3 '... Edge 4 ... Weeding tine 5 ... Rotation drive leg 6 ... Weeding wheel 7 ... Mounting frame 8 ... Counterweight 9 ... Balance lower link 10 ... Mounting base 11 ... Arm main body DESCRIPTION OF SYMBOLS 12 ... Blade shape 13 ... Protrusion 13a ... Base end side protrusion 13b ... Tip side protrusion 14 ... Ridge line 15 ... Spear 16 ... Crop 17 ... Crack

Claims (3)

  In the weeding tine arranged radially from the edge of the rotating base of the rotating weeding wheel obliquely upward, the arm of the weeding tine that rotates with the rotating base is bent concavely in the rotating direction, A tine structure of a rotary weeding wheel attached to a cultivator characterized by integrally having one or a plurality of protrusions having a tip formed in an acute blade shape along the curved longitudinal direction of the back surface contacting the surface   2. A tine structure of a rotary weeding wheel attached to a cultivator according to claim 1, wherein the ridge-facing concave surface other than the projecting portion of the arm is formed in a cross-sectional mountain shape or an acute angle blade shape along the longitudinal direction.   A plurality of weeding tines that are concavely curved in the rotational direction are arranged radially on the edge of the rotating base attached to the cultivator frame, and a plurality of herbic tines are arranged obliquely downward from the edge of the rotating base. In the rotary weeding wheel which is arranged in a descending slope toward the ridge surface of the field, the weeding tine is arranged along the lower surface longitudinal direction of the curved arm which contacts the ridge surface. A cultivator characterized in that one or a plurality of protrusions having a sharp edge at the tip are formed and the protrusions of the frame crush and agitate the surface of the reed as the weeding wheel rotates. Rotating weeding wheel installed on

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