JP2012000040A - Weeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weeder enabling weeds near the roots of farm products to also be easily removed without damaging the farm products.SOLUTION: The weeder (10) includes: a basal piece (12); and at least one pair of tines (14 and 16) with the top end attached to the basal piece so as to be symmetric left and right around the longitudinal axis as the center. In the weeder, it is characterized in that each of the tines is formed of a steel wire material so as to be of gently and outwardly curved shape; and the tip parts (14b and 16b) of the tines are provided with a plurality of wavy parts (14b1 and 16b1) so as to be extended nearly vertically. Preferably, in this weeder, each of the tip parts of the tines is bent so as to make an obtuse angle when viewed sideways.

Description

  The present invention relates to a weeding device that enables weeding to the root without damaging crops. The weeding device of the present invention can be used for either paddy field or field action. In addition, the weeding device of the present invention can be used by being pulled by an agricultural machine such as a tractor, or can be used manually.

  Conventionally, various types of weeding devices are known. For example, as a weeding device for manual work, there are a weeding wrinkle and a ho, and as a weeding device to be attached to a cultivator, there are a weeding blade such as a spring tine, a triangle, and an L shape.

  However, with conventional weeding devices, crops may be damaged if they are used too close during weeding operations, and weeds at the roots cannot be sufficiently removed if used away from crops so as not to damage the crops. was there.

  The present invention has been developed in view of such a situation, and an object of the present invention is to provide a weeding device that can easily remove root weeds without damaging crops.

  The weeding device according to claim 1 includes a base piece and at least a pair of tines whose upper ends are attached to the base piece so as to be bilaterally symmetric about a longitudinal axis, the tine being It is formed of a steel wire so as to have a gently curved shape outward, and a plurality of corrugated portions are provided at the tip portion of the tine so as to extend in a substantially vertical direction. is there.

  The weeding device according to claim 2 of the present invention is characterized in that, in the device of claim 1, the tip portion of the tine is bent so as to form an obtuse angle in a side view.

  The weeding device according to claim 3 includes a base piece and at least a pair of tines whose upper ends are attached to the base piece so as to be bilaterally symmetric about a longitudinal axis, and the tine is The tip portion is formed of a steel wire bent in a direction approaching each other and downward, and a plurality of corrugated portions are provided at the tip portion of the tine so as to extend in a substantially vertical direction. It is.

  The weeding device according to claim 4 of the present invention is the device according to any one of claims 1 to 3, wherein the corrugated portion is sinusoidal, continuous triangular, continuous trapezoidal, or continuous. It is characterized by being formed into a rectangular shape.

  A weeding device according to a fifth aspect of the present invention is characterized in that, in the device according to any one of the first to fourth aspects, the weeding device is connected to a cultivator via an attachment member.

  The weeding device according to claim 6 of the present application is the device according to any one of claims 1 to 4, further comprising a handle attached to the base piece. .

  According to the present invention, weeding work can be carried out efficiently. In the apparatus of the present invention, since the corrugated portion is provided at the tip portion of the weeding tine, the weeding tine can easily enter the ground during the weeding operation, and weeds in the ground can be removed with the roots. Further, in the apparatus of the present invention, since the corrugated portion is formed so as to extend in a substantially vertical direction, the space in which the corrugated portion moves in the ground becomes narrow, and it is possible to perform weeding at the root without damaging the crops. The effect that it can be obtained. Furthermore, since the structure of the present invention is relatively simple, the manufacturing cost is low and there is little risk of failure, so that the maintenance cost can be kept low.

  Next, a weeding apparatus according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings. 1 is a perspective view of the weeding device according to the first embodiment of the present invention, FIG. 2 is a side view of the weeding device of FIG. 1, and FIG. 3A is a plan view of the weeding device of FIG. FIG. 3B is an enlarged view of the portion 3b of FIG. A weeding apparatus according to a preferred embodiment of the present invention generally indicated by reference numeral 10 in FIGS. 1 and 2 includes a base piece 12 having a mounting portion 12a and a pair of outer sides with an upper end 14a attached to the base piece 12. The tine 14 includes a pair of inner tines 16 having upper ends 16 a attached to the base piece 12 so as to be located inside the outer tine 14.

  The pair of outer tines 14 are arranged so as to be bilaterally symmetric about the longitudinal axis xx (see FIG. 3A), and each outer tine 14 is curved gently bulging outward. It has a shape. Preferably, the tip portion 14b of each outer tine 14 is bent so as to form an obtuse angle α in side view, as best shown in FIG. A plurality (five in FIG. 2) of corrugated portions 14b1 are provided on the distal end portion 14b so as to extend in a substantially vertical direction. Here, “to extend substantially vertically” means that the top portion 14b1-t and the bottom portion 14b1-b of the corrugated portion 14b1 can be identified in a side view (see FIG. 2), but the top portion 14b1-t in a plan view. This means that it is almost difficult to identify the bottom 14b1-b (see FIG. 3A).

  Similarly to the outer tine 14, the pair of inner tines 16 are also arranged so as to be bilaterally symmetric about the longitudinal axis xx (see FIG. 3A). It has a curved shape that bulges gently in the direction. Preferably, the tip portion 16b of each inner tine 16 is bent so as to form an obtuse angle α in a side view. A plurality (two in FIG. 2) of corrugated portions 16b1 are provided on the distal end portion 16b so as to extend in a substantially vertical direction.

  The outer tine 14 and the inner tine 16 have the required elasticity (for example, a spring constant of about 7 g / mm to 15 g / mm when loaded on the tip of the cantilever) so that weeding can be performed without damaging the crops. Spring tine with The outer tine 14 and the inner tine 16 are usually formed of a steel wire having a wire diameter of 2 mm to 6 mm, but the wire diameter of the steel wire is not limited to this.

  In FIGS. 1 to 3, each inner tine 16 is illustrated as being formed of two steel wires (the steel wire positioned below is added to the steel wire positioned above). However, each inner tine 16 may be formed of one steel wire.

  Further, the outer tine 14 and the inner tine 16 shown in FIG. 1 are formed by being slightly bent so that the tip portions are substantially in contact with each other, but may be formed so that the tip portions intersect. Alternatively, a gap may be formed between the opposed tip portions.

  Moreover, in the weeding apparatus 10 shown by FIGS. 1-3, although the tines 14 and 16 are attached to the single base piece 12, as shown in FIG. You may comprise so that 16 may be attached. Also, two types of tines, the outer tine 14 and the inner tine 16, are attached to the base piece 12, but the tine attached to the base piece 12 may be one type or three types (both are Not shown).

  Next, the attachment method at the time of attaching the weeding apparatus 10 to a cultivator is demonstrated. FIG. 5A is a perspective view illustrating an example of an attachment state of the weeding device 10, and FIG. 5B is a side view illustrating an example of an attachment state of the weeding device 10. The weeding device 10 is attached to the rear end of the attachment member 18 extending in the traveling direction F of the cultivator (not shown) via the attachment portion 12 a of the base piece 12. The mounting member 18 is bolted to a tool bar 20 having a mast (not shown) connected to the hydraulic three-point support device of the tractor via a clamp 22 at the front. The weeding device 10 can fix a desired radix at a desired location on the tool bar 20 by loosening a bolt and adjusting the position of the clamp 22. Normally, a load is applied to the tines 14 and 16 using a weight or a spring so that the tines 14 and 16 can easily enter the ground during the weeding operation.

  With reference to FIG. 6, the operation | movement of the weeding apparatus 10 comprised as mentioned above is demonstrated. The weeding work is performed by connecting the weeding device 10 to the cultivator and pulling the cultivator with the tractor. In the weeding work, the weeding device 10 is moved so that the center lines of the outer tine 14 and the inner tine 16 of the weeding device 10 follow the crop row (see FIG. 6C). Then, the tip portions 14b and 16b of the outer tine 14 and the inner tine 16 enter the ground (FIG. 6A schematically shows a state in which the tip portion 14b of the outer tine 14 is in the ground. ). At this time, since the corrugated portion 14b1 is formed at the distal end portion 14b, the corrugated portion 14b1 is easily penetrated into the ground (the ground portion is cut by the corrugated portion 14b1), and the weeds in the ground are completely removed. (Weeds are shredded by the waveform portion 14b1). Moreover, since the corrugated portion 14b1 is formed so as to extend in the vertical direction, the space in which the corrugated portion 14b1 moves in the ground is substantially the same as the steel wire having the width W of 14 and 16, and the depth is D. It becomes a narrow space (illustrated by a broken line in FIG. 6A), which makes it difficult to damage the crops.

  FIG. 7 is a series of views showing a weeding device 30 according to the second embodiment of the present invention. The weeding device 30 has substantially the same configuration as the weeding device 10 except that the weeding device 30 is formed of a straight steel wire instead of a curved steel wire. That is, the weeding device 30 includes a base piece 32 and a pair of tines 34 having upper ends 34 a attached to the base piece 32. The tine 34 formed of a straight steel wire rod is arranged so as to be symmetrical with respect to the longitudinal axis. The tine 34 is bent downward in a direction in which the distal end portions 34b approach each other, and a plurality of corrugated portions 34b1 (a top portion 34b1-t and a bottom portion 34b1-b) extend in a substantially vertical direction in the bent distal end portion 34b. It is provided as follows.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the invention described in the claims, and these are also included in the scope of the present invention. Needless to say, it is something.

  For example, the waveform portions 14b1 and 16b1 illustrated in the above embodiment are formed in a sine curve (sine curve) shape, but a continuous triangle (see FIG. 8A) and a continuous trapezoid (see FIG. b)) or a continuous rectangle (see FIG. 8 (c)).

  Furthermore, as shown in FIG. 9, the handle 24 may be attached to the attachment portion 12 a of the base piece 12 by bolting or the like so that the weeding operation can be performed manually.

It is the perspective view which showed the weeding apparatus based on the 1st Embodiment of this invention. It is a side view of the weeding apparatus of FIG. 3A is a plan view of the weeding device of FIG. 1, and FIG. 3B is an enlarged view of a portion 3b of FIG. It is the perspective view which showed the modification of the weeding apparatus of FIG. FIG. 5A is a perspective view showing an example of the attachment state of the weeding device of FIG. 1, and FIG. 5B is a side view of FIG. 5A. It is a series of figures for demonstrating the action | operation of the weeding apparatus of FIG. FIG. 7 (a) is a perspective view showing a weeding device according to a second embodiment of the present invention, FIG. 7 (b) is a plan view of the weeding device of FIG. 7 (a), and FIG. 7 (c). These are the side views of the weeding apparatus of Fig.7 (a). It is a series of figures which showed the modification of the waveform part of a weeding device. It is the perspective view which showed an example of the human-powered weeding apparatus.

DESCRIPTION OF SYMBOLS 10 Weeding apparatus based on 1st Embodiment 12 Base piece 12a Attachment part 14 Outer tine 14a Upper end 14b Tip part 14b1 Corrugated part 14b1-t Top part 14b1-b Bottom part 16 Inner tine 16a Upper end 16b Tip part 16b1 Corrugated part 16b1-t Top portion 16b1-b Bottom portion 18 Mounting member 20 Toolbar 22 Clamp 24 Handle 30 Weeding device according to the second embodiment 32 Base piece 34 Tine 34a Upper end 34b Tip portion 34b1 Waveform portion 34b1-t Top portion 34b1-b Bottom portion

Claims (6)

Paddy field or field weeding device,
A base piece,
An upper end having at least a pair of tines attached to the base piece so as to be bilaterally symmetric about a longitudinal axis;
The tine is formed of a steel wire rod so as to be gently curved outward.
An apparatus according to claim 1, wherein a plurality of corrugated portions are provided at a distal end portion of the tine so as to extend in a substantially vertical direction. The apparatus according to claim 1, wherein the tip portion of the tine is bent so as to form an obtuse angle in a side view. Paddy field or field weeding device,
A base piece,
An upper end having at least a pair of tines attached to the base piece so as to be bilaterally symmetric about a longitudinal axis;
The tine is formed of a steel wire bent in a direction in which the tip portions approach each other and downward,
An apparatus according to claim 1, wherein a plurality of corrugated portions are provided at a distal end portion of the tine so as to extend in a substantially vertical direction. The corrugated portion is formed in a sinusoidal shape, a continuous triangular shape, a continuous trapezoidal shape, or a continuous rectangular shape, and is described in any one of claims 1 to 3. Equipment. The apparatus according to claim 1, wherein the apparatus is connected to the cultivator via an attachment member. The apparatus according to claim 1, further comprising a handle attached to the base piece.

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