JP2006333752A - Weeding tool - Google Patents

Weeding tool Download PDF

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JP2006333752A
JP2006333752A JP2005160931A JP2005160931A JP2006333752A JP 2006333752 A JP2006333752 A JP 2006333752A JP 2005160931 A JP2005160931 A JP 2005160931A JP 2005160931 A JP2005160931 A JP 2005160931A JP 2006333752 A JP2006333752 A JP 2006333752A
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blade
annular blade
pin
radial direction
weeding tool
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JP4223025B2 (en
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Shigeru Kishida
茂 岸田
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a weeding tool for pulling out weeds with roots, with which an operation is simply and surely carried out by power. <P>SOLUTION: The weeding tool is attached to a driving shaft to be rotated and driven by an engine or a motor as a bush cutter and used. The weeding tool has an annular blade 1 to be rotated and driven as a main part, a scraping blade 3 in the radial direction of the annular blade 1 and a pin roller 4 in another radial direction, which is freely rotated in the radial direction as a rotation center. Pins 6 are projected from the outer peripheral surface of the pin roller 4 and a center pin 7 is downward projected at the rotation center of the annular blade 1. When the center pin 7 is supported on the desired position on a ground surface on which weeds grow and the whole annular blade 1 is downward pressed, the center pin 7 is forced into soil, the pins 6 of the pin roller 4 are brought into contact with a ground surface to loosen the hard ground surface. The ground surface loosened by the pins 6 is dug up by the scraping blade 3 and soil and the weed roots are scraped off. In the operation, sideways grown roots are cut by the annular blade 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、刈払機の先端などに装着し、雑草の根を残さず引き抜いて取り除くために利用する草取り具に関する発明である。   The present invention relates to a weed cutting tool that is attached to the tip of a brush cutter and is used to pull out and remove all the roots of weeds.

雑草は、地上部を刈取るだけではすぐに成長するため、雑草を完全に取り除くためには、根を残さずに取り除く必要がある。従来、広い範囲全体の除草や草引きを行うには除草剤などの薬品を利用するほか、大掛かりな管理機やカルチベータなどを利用している。しかしながら、耕作地などで部分的に雑草を根から取り除くためには、移植ごてやテコ式の草取り具を用いて、あるいは手指で一本ずつ取り除くのが一般的な方法であった。このように、雑草を一本ずつ手作業で取り除くのは非常に手間がかかるため、特許文献１ないし３のように、動力的な手段によって雑草を取り除くものも工夫されている。   Since weeds grow quickly when only the above-ground part is cut, it is necessary to remove them without leaving roots in order to completely remove the weeds. Conventionally, in order to perform weeding and weeding over a wide area, in addition to using chemicals such as herbicides, large management machines and cultivators are used. However, in order to partially remove weeds from the roots in cultivated land, etc., it was a common method to remove them one by one using a transplanting iron, a lever-type weeding tool, or with fingers. As described above, it is very troublesome to manually remove the weeds one by one. Therefore, as described in Patent Documents 1 to 3, the one that removes the weeds by dynamic means has been devised.

特許文献１に開示されている電動草取り機は、回転軸の先端に翼状の切り刃を設けておき、雑草を粉々にくだいて取り除くもの、特許文献２に開示される装置は、回転する除草盤の下方に刃を突出させておき地面をかきとるようにして雑草を取り除くもの、特許文献３に開示されている草取り機は、主として水田の草取りに利用するために、支柱の先端にフロート板を設け、フロート板の接地面側に回転駆動される草取刃を設けたものである。
特開平８−１０号公報 特開昭６３−２１９３１１号公報 特開昭５６−３２９４５号公報 The electric weeding machine disclosed in Patent Document 1 is provided with a wing-shaped cutting blade at the tip of a rotating shaft and shreds the weeds. The apparatus disclosed in Patent Document 2 is a rotating weeding board. The weeding machine disclosed in Patent Document 3 removes weeds by scraping the ground below the blade and scraping the ground. The float plate is mainly used for weeding paddy fields. Provided is a weeding blade that is rotationally driven on the ground contact surface side of the float plate.
JP-A-8-10 Japanese Patent Laid-Open No. Sho 63-219311 JP 56-32945

特許文献１や２に開示される草取り機は、いずれも回転駆動される切り刃によって地面を攪拌して雑草の根を取り除くものであるため、雑草の断片や土が四方に飛散し、雑草の根などを回収できない欠点がある。また、雑草が生育する地表面の状況は千差万別であって、乾燥したかたい地面では、大きな回転駆動力が必要であって、現実に作業が困難であるとともに切り刃が、簡単に摩滅してしまう欠点があった。
上記従来技術の欠点に鑑み、本発明は作業が容易であって、雑草を根から確実に取り除いて回収し、雑草や土を周囲に飛散させない草取り具を実現することを目的とするものである。 Since the weeding machines disclosed in Patent Documents 1 and 2 both remove the weed root by stirring the ground with a cutting blade that is driven to rotate, the weed fragments and soil are scattered in all directions, the weed root, etc. There is a disadvantage that cannot be recovered. In addition, the conditions of the surface of the ground where weeds grow vary greatly. On dry, hard ground, a large rotational driving force is required, making it difficult to work in practice and making the cutting blade easy. There was a fault that would wear out.
In view of the above-mentioned drawbacks of the prior art, the present invention aims to realize a weeding tool that is easy to work, reliably removes weeds from the roots, collects the weeds and soil, and does not splash around. .

上記目的を達成するため、本発明に係る草取り具では、回転駆動される環状刃１を用いる。そして、環状刃１の半径方向にすくい刃３を、別の半径方向に半径方向を回転中心として自由に回転し、外周面にピン６を突出させたピンローラ４を配置する。また、環状刃１の回転中心には下方に突出するセンターピン７を設ける。   In order to achieve the above object, the weeding tool according to the present invention uses an annular blade 1 that is rotationally driven. Then, the rake blade 3 in the radial direction of the annular blade 1 is freely rotated with the radial direction as the rotation center in another radial direction, and a pin roller 4 having a pin 6 protruding on the outer peripheral surface is disposed. Further, a center pin 7 protruding downward is provided at the center of rotation of the annular blade 1.

環状刃１の刃先とすくい刃３の刃先位置はほぼ同じ高さとし、ピンローラ４に突出させたピン６は、その先端が回転の下方位置において、すくい刃３の先端よりも下方に突出し、センターピン７が最も下方に突出する態様とするのが好ましい。また、環状刃１は円筒状の環状刃本体の先端部を刃先とし、この刃先は環状に連続するものではなく一定ピッチごとに複数の刃部８を形成することによって、環状刃１によって切り込みを行う場合の作業性が向上する。   The cutting edge position of the annular blade 1 and the cutting edge position of the rake blade 3 are substantially the same height, and the pin 6 protruded from the pin roller 4 protrudes below the leading edge of the rake blade 3 at the lower position of rotation. It is preferable that 7 protrudes downward most. The annular blade 1 has a tip of a cylindrical annular blade body as a cutting edge, and the cutting edge is not continuous in an annular shape, and a plurality of blade portions 8 are formed at a constant pitch, so that the annular blade 1 cuts. Workability when performing is improved.

請求項１記載の本発明草取り具によれば、回転駆動される環状刃１による作業位置をセンターピン７によって正確に位置決めし、環状刃１の内方の草を確実に取り除くことができる。すなわち、センターピン７によって位置決めされた環状刃１を先方に押し出して行くと、環状刃１によって円形の作業範囲が特定される。このとき、ピンローラ４のピン６によってかたい地面を掘り起こして柔らかくし、雑草の根も緩める。この柔らかくされた地面を、すくい刃３によって、環状刃１の内方の土をすくい取ることによって雑草の根が確実に引き抜かれる。引き抜かれた雑草の根やすくい取られた土は、環状刃１の内方に留まり、周囲に飛散することがない。そして、すくい刃３がかたい地面をすくうのを回避するため、それだけすくい刃３の摩滅を回避し、雑草の根をより確実に引き抜くことができる。   According to the first aspect of the present invention, the working position of the rotary blade 1 that is rotationally driven can be accurately positioned by the center pin 7 and the grass inside the annular blade 1 can be reliably removed. That is, when the annular blade 1 positioned by the center pin 7 is pushed forward, the circular working range is specified by the annular blade 1. At this time, the hard ground is dug up and softened by the pins 6 of the pin rollers 4, and the roots of the weeds are also loosened. The weed root is reliably pulled out by scooping out the soil inside the annular blade 1 with the scooping blade 3 from the softened ground. The soil that has been taken out easily by the roots of the extracted weeds stays inside the annular blade 1 and does not scatter around. And since the scooping blade 3 avoids scooping the hard ground, the scooping blade 3 can be avoided to that extent, and the root of the weed can be pulled out more reliably.

請求項２記載の発明によれば、ピンローラ４のピン６によるかたい土の掘り起こしが確実に行われ、請求項１記載の発明の効果を確実なものとすることができる。   According to the second aspect of the present invention, the hard soil is dug by the pin 6 of the pin roller 4 with certainty, and the effect of the first aspect of the invention can be ensured.

請求項３記載の発明によれば、草取りの領域を区画する環状刃１による切込みを、効果的かつ確実に行うことができる。   According to the third aspect of the present invention, it is possible to effectively and reliably perform the cutting with the annular blade 1 that partitions the weeding area.

以下、本発明に係る草取り具の、好ましい実施形態を添付の図面に基づいて説明する。
図１は草取り具の下方斜視図、図２は草取り具の縦断面図、図３は草取り具の底面図、図４は使用状態を示す側面図である。 Hereinafter, preferred embodiments of a weeding tool according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a lower perspective view of the weeding tool, FIG. 2 is a longitudinal sectional view of the weeding tool, FIG. 3 is a bottom view of the weeding tool, and FIG. 4 is a side view showing a use state.

本発明に係る草取り具は、刈払機のようにエンジンやモータによって回転駆動される駆動軸に装着して使用する。したがって、環状刃１を主体部分とする草取り具は、駆動軸に装着するためのシャンク２を備えている。すなわち、シャンク２の先端部分に円筒状の環状刃１を固定し、環状刃１の内方部分にすくい刃３とピンローラ４を装着する。円筒状の環状刃１をシャンク２の先端部に固定するには、環状刃１の半径方向に配置したすくい刃３の一端を環状刃１の内面に、他端をシャンク２にそれぞれ溶接によって固定するとともに、すくい刃３とは別の半径方向に支持軸５を配置し、支持軸５の一端を環状刃１の内面に、他端をシャンク２の先端部に固定する。   The weeding tool according to the present invention is used by being mounted on a drive shaft that is rotationally driven by an engine or a motor like a brush cutter. Therefore, the weeding tool having the annular blade 1 as a main portion includes the shank 2 for mounting on the drive shaft. That is, the cylindrical annular blade 1 is fixed to the tip portion of the shank 2, and the rake blade 3 and the pin roller 4 are attached to the inner portion of the annular blade 1. In order to fix the cylindrical annular blade 1 to the tip of the shank 2, one end of the rake blade 3 arranged in the radial direction of the annular blade 1 is fixed to the inner surface of the annular blade 1 and the other end is fixed to the shank 2 by welding. At the same time, the support shaft 5 is arranged in a radial direction different from that of the rake blade 3, and one end of the support shaft 5 is fixed to the inner surface of the annular blade 1 and the other end is fixed to the tip of the shank 2.

支持軸５にはピンローラ４を回転自在に装着する。すなわち、円柱状のピンローラ４の外表面に複数のピン６，６を植設しておく。ピンローラ４の外表面に植設するピン６の長さは、回転の下方位置において、先端が環状刃１の先端よりも下方に突出するようにしておく。また、シャンク２の先端には、最も大きく下方に突出するセンターピン７が配置してある。図示実施形態においては、環状刃１の内方に一つのすくい刃３と一本の支持軸５を直径方向に配置しているが、複数のすくい刃３及び/又は支持軸５を放射方向に配置することもできる。このとき、支持軸５はピンローラ４の支持軸とするだけでなく、環状刃１の支持構造としての支持軸を配置することができる。環状刃１の直径は特に限定されるものではないが、前記放射方向に支持軸を配置する構造は、環状刃１をある程度大きな直径とする場合に、環状刃１とシャンク２を安定よく固定する上において有効である。   A pin roller 4 is rotatably mounted on the support shaft 5. That is, a plurality of pins 6 and 6 are planted on the outer surface of the cylindrical pin roller 4. The length of the pin 6 to be implanted on the outer surface of the pin roller 4 is set so that the tip protrudes below the tip of the annular blade 1 at the lower position of the rotation. Further, a center pin 7 that protrudes most downward is disposed at the tip of the shank 2. In the illustrated embodiment, one rake blade 3 and one support shaft 5 are arranged radially inward of the annular blade 1, but a plurality of rake blades 3 and / or support shafts 5 are arranged in the radial direction. It can also be arranged. At this time, the support shaft 5 can be used not only as a support shaft for the pin roller 4 but also as a support structure for the annular blade 1. The diameter of the annular blade 1 is not particularly limited, but the structure in which the support shaft is arranged in the radial direction stably fixes the annular blade 1 and the shank 2 when the annular blade 1 has a certain large diameter. Effective above.

円筒状に形成する環状刃１の先端は、地表面を区画する如く切り込むための掘削刃となる。すなわち、一定の厚みである鋼材の外周端もしくは内周端を研磨することによって、環状に連続する刃先とすることができるが、環状に連続する刃先の場合は地表面を掘削する効果が少ない。図示実施形態においては、環状刃１の先端部に、一定ピッチごとに上方に向けて切込み９，９を設けている。これにより、環状刃１の先端に複数の刃部８，８が一定ピッチで形成され、円筒状の掘削刃として機能するように工夫している。なお、円筒状の環状刃１の先端面に、一定ピッチでチップを突出させて耐磨耗性に優れたものとすることもできる。   The tip of the annular blade 1 formed in a cylindrical shape becomes a digging blade for cutting so as to partition the ground surface. That is, by polishing the outer peripheral end or inner peripheral end of a steel material having a constant thickness, it is possible to obtain an annular continuous cutting edge. However, in the case of an annular continuous cutting edge, the effect of excavating the ground surface is small. In the illustrated embodiment, incisions 9 and 9 are provided at the tip portion of the annular blade 1 upward at every constant pitch. Thereby, the some blade parts 8 and 8 are formed in the front-end | tip of the annular blade 1 with a fixed pitch, and it is devised so that it may function as a cylindrical excavation blade. In addition, it is also possible to make the tip protrude from the tip surface of the cylindrical annular blade 1 at a constant pitch and have excellent wear resistance.

上記構造の本発明に係る草取り具は、モータやエンジンによって回転駆動される駆動軸に装着して使用する。具体的には、図４に示すように支持杆11の基端にモータ10もしくはエンジンといった回転駆動手段を備え、ハンドル12を持って操作する草刈機、刈払機のヘッド13に装着して利用することができる。勿論、回転駆動手段を備えた専用の草取り機として実施することもできる。   The weeding tool according to the present invention having the above structure is used by being mounted on a drive shaft that is rotationally driven by a motor or an engine. Specifically, as shown in FIG. 4, the base end of the support rod 11 is provided with a rotational drive means such as a motor 10 or an engine, and is used by being attached to a head 13 of a mower or brush cutter operated with a handle 12. be able to. Of course, it can also be implemented as a dedicated weeding machine equipped with a rotation drive means.

本発明に係る草取り具を使用するには、図２に示すように、回転駆動されている環状刃１のセンターピン７を、雑草が生えている地面の所望位置に支持させて、環状刃１全体を下方に押し出す。センターピン７が土中に侵入していくと、ピンローラ４のピン６が地面に接触し、かたい地面をほぐす。すなわち、ピンローラ４自体は環状刃１とともに回転しているため、地面14を円形軌跡で転がるように作用する。ピンローラ４が地面14を転がると、図５に示すように、ａ位置においてピンローラの表面に突出させているピン６が斜め方向に地面に接し、地面に対して斜めから垂直方向に姿勢を変えながらｂ位置のように地面に押し込まれ、逆方向の傾斜に変位しながらｃ位置において地面から抜け出る。したがって、攪拌翼による掘削のように地面を強制的に掘り上げるものではなく、地面を柔らかくほぐすように作用する。   In order to use the weeding tool according to the present invention, as shown in FIG. 2, the center pin 7 of the annular blade 1 that is rotationally driven is supported at a desired position on the ground where weeds grow, and the annular blade 1 is used. Push the whole down. As the center pin 7 enters the soil, the pin 6 of the pin roller 4 comes into contact with the ground and loosens the hard ground. That is, since the pin roller 4 itself rotates together with the annular blade 1, the pin roller 4 acts so as to roll on the ground 14 with a circular locus. When the pin roller 4 rolls on the ground 14, as shown in FIG. 5, the pin 6 protruding from the surface of the pin roller at the position “a” contacts the ground in an oblique direction, and changes its posture from oblique to perpendicular to the ground. It is pushed into the ground as in the b position and exits from the ground at the c position while displacing in the reverse direction. Therefore, it does not forcibly dig up the ground like excavation with a stirring blade, but acts to loosen the ground softly.

ピン６によって柔らかくほぐされた地面は別位置のすくい刃によって掘り起こされ、雑草Ａの根と土をすくい取り分離させる。雑草の根が、広い範囲に広がっている場合は、環状刃１によって横へ延びている根が切断される。横方向に延びている雑草の根を切断することによって遠方まで張っている根の力を断ち切り、環状刃１の内方部分の根が、比較的小さな力で確実に除去される。一方で環状刃１は、必要以上に地中深く押し込まれることがない。すなわち、環状刃１の内部において半径方向に配置されるピンローラ４が地中侵入のストッパーとして機能し、必要以上に深く土を崩さないとともに回転手段の過負荷を防止することになる。   The ground softly loosened by the pins 6 is dug up by a scooping blade in another position, and the root and soil of the weed A are scooped up and separated. When the roots of weeds are spread over a wide range, the roots extending laterally are cut by the annular blade 1. By cutting the weed root extending in the lateral direction, the force of the root extending far is cut off, and the root of the inner portion of the annular blade 1 is reliably removed with a relatively small force. On the other hand, the annular blade 1 is not pushed deeper than necessary. That is, the pin roller 4 disposed in the radial direction inside the annular blade 1 functions as a stopper for intrusion into the ground, so that the soil is not broken deeper than necessary and the overload of the rotating means is prevented.

環状刃１によって、雑草の根を切断し、雑草を除去する範囲を限定することは、草取り作業中に取り除いた草が回転部分に巻き付く可能性を少なくするとともに、耕作地において作物と作物の間の雑草を草取りするような場合に、作物が植わっている地面の土を崩す弊害を無くし、作物に悪影響を及ぼさないばかりでなく、作物から少し離れた特定の位置の土をほぐし、作物の生長を助けることができるという実益を有する。   Cutting the weed roots with the annular blade 1 and limiting the range of weed removal reduces the possibility that the grass removed during the weeding operation will wind around the rotating part, and between crops on the cultivated land. When weeding weeds, it will not only harm the soil on the ground where the crops are planted, it will not adversely affect the crops, but also loosen the soil at a certain distance from the crops, Has the benefit of being able to help.

なお、すくい刃３によって掘り起こされた雑草の根は、周囲に飛散することなく環状刃１の内方に留まるため、草取り具全体を作業位置から持ち上げることによって、その表面に残っている、引き抜かれた雑草を拾うことによって容易に回収することができる。   In addition, since the roots of the weeds dug up by the rake blade 3 remain inside the annular blade 1 without being scattered around, the entire weeding tool is lifted from the working position, and is pulled out. It can be easily recovered by picking up weeds.

図１は、草取り具の下方斜視図、FIG. 1 is a lower perspective view of a weeding tool, 図２は、草取り具の縦断面図、FIG. 2 is a longitudinal sectional view of the weeding tool, 図３は、草取り具の底面図、3 is a bottom view of the weeding tool, 図４は、刈払機などに装着して使用する状態を示す側面図、FIG. 4 is a side view showing a state in which the brush cutter is installed and used. 図５は、ピンローラの動きを示す略図。FIG. 5 is a schematic diagram showing the movement of the pin roller.

符号の説明Explanation of symbols

１…環状刃、 ２…シャンク、 ３…すくい刃、 ４…ピンローラ、 ５…支持軸、 ６…ピン、 ７…センターピン、 ８…刃部、 ９…切り込み、 10…モータ、 11…支持杆、 12…ハンドル、 13…ヘッド、 14…地面、 Ａ…雑草。 DESCRIPTION OF SYMBOLS 1 ... Annular blade, 2 ... Shank, 3 ... Rake blade, 4 ... Pin roller, 5 ... Support shaft, 6 ... Pin, 7 ... Center pin, 8 ... Blade part, 9 ... Cutting, 10 ... Motor, 11 ... Support rod, 12 ... handle, 13 ... head, 14 ... ground, A ... weed.

Claims (3)

回転駆動される環状刃の半径方向にすくい刃を、別の半径方向に半径方向を回転中心として自由に回転し、外周面にピンを突出させたピンローラを配置するとともに、環状刃の回転中心に下方に突出するセンターピンを設けたことを特徴とする草取り具。   Rotate the rake blade in the radial direction of the annular blade that is driven to rotate, freely rotate around the radial direction in another radial direction, and place a pin roller with a pin protruding on the outer peripheral surface. A weeding tool provided with a center pin protruding downward. 環状刃の刃先とすくい刃の刃先位置がほぼ同じ高さであって、ピンローラに突出させたピンは、その先端が回転の下方位置において、前記すくい刃の先端よりも下方に突出し、センターピンが最も下方に突出する請求項１記載の草取り具。   The edge of the annular blade and the edge of the rake blade are substantially the same height, and the pin protruded from the pin roller protrudes below the tip of the rake blade at the lower position of rotation, and the center pin is The weeding tool according to claim 1, which protrudes downward most. 環状刃は円筒状の環状刃本体の先端部を刃先とし、該刃先は環状に連続するものではなく一定ピッチごとに複数の刃部を形成したことを特徴とする請求項１又は２記載の草取り具。   The weeding according to claim 1 or 2, wherein the annular blade has a tip of a cylindrical annular blade body as a cutting edge, and the cutting edge is not continuous in an annular shape, and a plurality of blades are formed at a constant pitch. Ingredients.
JP2005160931A 2005-06-01 2005-06-01 Weeding tool Expired - Fee Related JP4223025B2 (en)

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Publication number Priority date Publication date Assignee Title
CN104206056A (en) * 2014-07-24 2014-12-17 昆明理工大学 Potted plant soil loosening device
CN104885688A (en) * 2015-05-13 2015-09-09 成都佳美嘉科技有限公司 Simple hay mower
CN104938065A (en) * 2014-03-28 2015-09-30 牛连壁 Root pruning and soil loosening machine for fruit trees
CN105144879A (en) * 2015-09-14 2015-12-16 宁德师范学院 Plant soil loosening device
WO2019231124A1 (en) * 2018-05-28 2019-12-05 Shin Yun Cheol Rotary hoe including multiple hoe blades and powered hoe device using same
CN111788927A (en) * 2020-07-17 2020-10-20 温州大学瓯江学院 Agricultural farmland weeder
CN113141790A (en) * 2021-02-22 2021-07-23 成都农业科技职业学院 Intelligent weeding robot

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104938065A (en) * 2014-03-28 2015-09-30 牛连壁 Root pruning and soil loosening machine for fruit trees
CN104206056A (en) * 2014-07-24 2014-12-17 昆明理工大学 Potted plant soil loosening device
CN104885688A (en) * 2015-05-13 2015-09-09 成都佳美嘉科技有限公司 Simple hay mower
CN104885688B (en) * 2015-05-13 2016-08-24 湖南银杉机电制造有限公司 Simple hay mover
CN105144879A (en) * 2015-09-14 2015-12-16 宁德师范学院 Plant soil loosening device
WO2019231124A1 (en) * 2018-05-28 2019-12-05 Shin Yun Cheol Rotary hoe including multiple hoe blades and powered hoe device using same
KR20190002988U (en) * 2018-05-28 2019-12-06 신연철 Portable weeder having mechanically driven weeding hoe
KR200490943Y1 (en) * 2018-05-28 2020-01-28 신연철 Portable weeder having mechanically driven weeding hoe
CN111788927A (en) * 2020-07-17 2020-10-20 温州大学瓯江学院 Agricultural farmland weeder
CN113141790A (en) * 2021-02-22 2021-07-23 成都农业科技职业学院 Intelligent weeding robot
CN113141790B (en) * 2021-02-22 2023-10-13 成都农业科技职业学院 Intelligent weeding robot

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