JP4646820B2 - Weaver - Google Patents

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JP4646820B2
JP4646820B2 JP2006036142A JP2006036142A JP4646820B2 JP 4646820 B2 JP4646820 B2 JP 4646820B2 JP 2006036142 A JP2006036142 A JP 2006036142A JP 2006036142 A JP2006036142 A JP 2006036142A JP 4646820 B2 JP4646820 B2 JP 4646820B2
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plate
side plate
front blade
blade
blade plate
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JP2007215411A (en
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正造 岡島
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株式会社ドウカン
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この発明は、農園芸作業における除草手段としての草削り具、特に田畑などの除草作業など、狭い場所で使用するのに適した草削り具に関するものである。   The present invention relates to a weed cutting tool suitable for use in a narrow place such as a weed cutting tool as a weeding means in agricultural and horticultural work, particularly a weeding work such as a field.

除草手段として、地表面を削るようにして雑草を根元から取り除く、草削り具そのものは特許文献1や特許文献2に示すように、横幅方向に配置した刃板によって地面を削る形態のものが知られている。また、特許文献3に示すように、略三角形の鍬の側縁で雑草を削り取る除草用三角鍬も知られている。
特開平09―121601号公報 特開2003―325001号公報 特開平2004―73018号公報
As the weeding means, weeds are removed from the roots by cutting the ground surface. As shown in Patent Document 1 and Patent Document 2, the grass cutting tool itself has a form in which the ground is cut by a blade plate arranged in the width direction. It has been. Moreover, as shown in Patent Document 3, a weeding triangular scissor is also known in which weeds are scraped off at the side edges of a substantially triangular coral.
Japanese Patent Application Laid-Open No. 09-121601 JP 2003-325001 A Japanese Patent Laid-Open No. 2004-73018

一般的な草削り具は、特許文献2や図8に示すように、横幅方向に配置される刃板Aの略中央部分に、柄BのシャンクCを固定したものである。そのため、図8に示すように刃板Aによって地表面を削るように移動させ、除草作業を行う場合に、刃板Aの左右先端部分で、移動方向にある作物Dや植えてある草花などを傷付けてしまうトラブルが発生し易い欠点があった。特許文献1に開示される草削り機は、刃板の先端が側方に突出しないものではあるが草刈り刃の着脱構造が側方に突出するため、これが作物にぶつかり傷付けるとともに、構造が複雑となる欠点があった。また、特許文献3に開示される三角鍬は、側縁削り刃であるため、削り刃で作物に傷を付け易い欠点がある。作物などに傷を付けるトラブルは、例えば畝の上に一定の間隔で作物が植えられている場合に、作物の列と列の間の除草を行う場合などに発生する可能性が大きい。   As shown in Patent Document 2 and FIG. 8, a general weaving tool is obtained by fixing a shank C of a handle B to a substantially central portion of a blade plate A arranged in the width direction. Therefore, as shown in FIG. 8, when the weeding operation is performed by cutting the ground surface with the blade plate A, the crop D in the moving direction, the planted flower, etc. are moved at the left and right tip portions of the blade plate A. There was a drawback that the trouble of damaging was likely to occur. In the weeding machine disclosed in Patent Document 1, although the tip of the blade plate does not protrude sideways, the mowing blade attaching / detaching structure protrudes sideways, so that this hits the crop and damages the structure. There was a drawback. Moreover, since the triangular scissors disclosed in Patent Document 3 are side edge cutting blades, there is a drawback that the cutting blades can easily damage the crop. A trouble that damages a crop or the like is likely to occur when weeding between rows of crops when crops are planted on a fence at regular intervals.

上記従来技術の欠点に鑑み、本発明は狭い場所での除草作業に際し農作物や植えてある植物に傷付けることなく作業を進めることができるとともに、簡単な構造で安価に提供することができ、作業性に優れた草削り具を提供することを目的とするものである。
また、本発明の別の目的は、除草のための正面刃板に上下方向に突出する角部分を形成し、細かな作業が行えるようにすることである。
In view of the above disadvantages of the prior art, the present invention can proceed without damaging crops and planted plants during weeding work in a narrow place, can be provided at a low cost with a simple structure, and is easy to work with. The purpose is to provide an excellent cutting tool.
Another object of the present invention is to form a corner portion protruding in the vertical direction on the front blade plate for weeding so that a fine work can be performed.

上記目的を達成するため、請求項1記載の発明は、柄体1の左右両側面に固定する固定部2,2と、先方に向けて広がる側面板3,3と、側面板3,3に対して折曲状態で連続する正面刃板4を一枚の鋼板によって形成する。そして、側面板3,3と正面刃板4との折れ線を側面板3の長手方向と直交する方向に対して傾斜させることによって正面刃板4を下向きに傾斜させるとともに、正面刃板4を前方に向けて突出する突弧状に形成する。
In order to achieve the above object, the invention described in claim 1 includes fixing portions 2 and 2 fixed to the left and right side surfaces of the handle 1, side plates 3 and 3 spreading toward the front, and side plates 3 and 3. On the other hand, the front blade 4 that is continuous in a bent state is formed by a single steel plate. The front blade plate 4 is tilted downward by tilting the fold line between the side plates 3 and 3 and the front blade plate 4 with respect to the direction orthogonal to the longitudinal direction of the side plate 3, and the front blade plate 4 is moved forward. It forms in the shape of a projecting arc that protrudes toward the surface.

請求項2記載の発明は、側面板3と正面刃板4の折曲角度が直角もしくは鈍角とし、側面板3を円弧状に湾曲させること、請求項3記載の発明は、側面板3と正面刃板4の折曲角度を直角もしくは鋭角とし、側面板3を正面刃板4から柄体1に向けて傾斜、すなわち直線的に形成するものである。
請求項4記載の発明は、正面刃板に上下方向に突出する角部分である。すなわち、側面板3は前端部において正面刃板4よりも細幅とし、正面刃板4の四隅が側面板3よりも上下方向に突出する突出部を形成したものである。
The invention according to claim 2 is such that the side plate 3 and the front blade plate 4 are bent at a right angle or an obtuse angle, and the side plate 3 is curved in an arc shape. The bending angle of the blade plate 4 is a right angle or an acute angle, and the side plate 3 is inclined from the front blade plate 4 toward the handle 1, that is, linearly formed.
The invention according to claim 4 is a corner portion protruding in the vertical direction on the front blade. That is, the side plate 3 has a narrower width than the front blade 4 at the front end, and has four corners of the front blade 4 that protrude in the vertical direction from the side plate 3.

請求項1記載の本発明草削り具によれば、一枚の鋼板から打ち抜き、折曲することによって簡単に製造することができる。そして、側面板3と正面刃板4が連続しているため、正面刃板4に形成した削り刃5が、側面板3よりも側方に突出しないとともに、傾斜方向に形成される側面板3がガイド板として機能し、作業中に作物に当たって傷を付けるのを効果的に防止することができる。
さらに、正面刃板4を、前方に向けて突出する突弧状に形成することによって、湾曲の程度に比例して、正面刃板4の中央部が下方に位置し、効果的に地表面を削って除草作業を行うことができる効果がある。
According to the cutting tool of the present invention described in claim 1, it can be easily manufactured by punching and bending from a single steel plate. And since the side plate 3 and the front blade plate 4 are continuous, the cutting blade 5 formed on the front blade plate 4 does not protrude sideways than the side plate 3 and the side plate 3 formed in the inclined direction. Functions as a guide plate and can effectively prevent damage to the crops during work.
Further, by forming the front blade plate 4 in a projecting arc shape protruding forward, the center portion of the front blade plate 4 is positioned downward in proportion to the degree of curvature, and the ground surface is effectively shaved. This has the effect that weeding work can be performed.

請求項2記載の発明によれば、ガイド板として機能する側面板3の形状が、正面刃板4に近づくに従って移動方向に対して鋭角となるとともに、正面刃板4の側方への突出を確実に無くし、作物を傷付けるのを防止する効果が一層確実なものとなる。請求項3記載の発明によれば、側面板3の出っ張りがなく、狭い場所での作業を支障なく行うことができる。
請求項4記載の発明によれば、上面刃板4の四隅に側面板よりも突出する突出部11を利用して、例えば深く根が張っている雑草を掘り起こす場合などに利用し、効率的に除草作業を進めることができる効果がある。
According to invention of Claim 2, while the shape of the side plate 3 which functions as a guide plate becomes an acute angle with respect to a moving direction as it approaches the front blade plate 4, the protrusion to the side of the front blade plate 4 is made. The effect of reliably eliminating and preventing damaging the crops is even more certain. According to invention of Claim 3, there is no protrusion of the side surface board 3, and the operation | work in a narrow place can be performed without trouble.
According to the fourth aspect of the present invention, the protrusions 11 protruding from the side plates at the four corners of the upper face blade plate 4 are used, for example, when digging up deeply rooted weeds. There is an effect that weeding work can be advanced.

以下、本発明に係る草削り具の実施形態を添付の図面に基づいて説明する。
図1は、本発明の実施形態を示す草削り具の平面図、図2は、一部を切断して示す正面図、図3は、使用状態を示す略図、図4は、刃体全体の展開図、図5は、一部を切断して示す別の実施形態の正面図、図6は、図5の実施形態を示す刃体全体の展開図、図7は、図5に示す実施形態の平面図である。
Hereinafter, embodiments of the weeding tool according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a plan view of a weed cutting tool showing an embodiment of the present invention, FIG. 2 is a front view showing a part of the cutting tool, FIG. 3 is a schematic view showing a use state, and FIG. FIG. 5 is a front view of another embodiment shown by cutting a part thereof, FIG. 6 is a development view of the entire blade body showing the embodiment of FIG. 5, and FIG. 7 is an embodiment shown in FIG. FIG.

図示実施形態の草削り具は、短い柄体1を備え、片手で持って作業をするものを示しているが、長い柄体のものであってもよい。
柄体1は、握り易い太さ及び形状とした把持部1aの先端部分に、広幅に形成した取付部1bを形成し、取付部1bに草削り具の刃体6を固定している。
Although the weeding tool of the illustrated embodiment includes a short pattern body 1 and is operated with one hand, it may be a long pattern body.
The handle 1 is formed with a wide attachment portion 1b at the tip of the grip portion 1a having a thickness and shape that is easy to grip, and a blade 6 of a weeding tool is fixed to the attachment portion 1b.

刃体6は、全体を一体に形成し、例えば鋼板の打ち抜き加工によって成型することができる。すなわち、刃体6は図4に示すように、中央に幅の広い正面刃板4を配置し、左右両側方に側面板3と固定部2を連続させる。側面板3,3と正面刃板4は、直線方向ではなく、角度αで傾斜させ、固定部2と側面板は直線的に形成する。
すなわち、固定部2と側面板3は折れ線7で、側面板3と正面刃板4は折れ線8でそれぞれ折曲するが、折れ線8は、正面刃板4の長手方向に対して直交する方向、換言すれば側面板の長手方向と直交する方向に対して角度αの方向に傾斜させている。
The blade body 6 is integrally formed as a whole, and can be formed, for example, by punching a steel plate. That is, as shown in FIG. 4, the blade body 6 has a wide front blade plate 4 disposed at the center, and the side plate 3 and the fixing portion 2 are connected to the left and right sides. The side plates 3 and 3 and the front blade plate 4 are not inclined in a linear direction but at an angle α, so that the fixed portion 2 and the side plate are formed linearly.
That is, the fixing portion 2 and the side plate 3 are bent at a fold line 7, and the side plate 3 and the front blade plate 4 are bent at a fold line 8, respectively, but the fold line 8 is a direction orthogonal to the longitudinal direction of the front blade plate 4, In other words, it is inclined in the direction of the angle α with respect to the direction orthogonal to the longitudinal direction of the side plate.

正面刃板4の下端縁は、刃付けを行って削り刃5とするとともに、側面板3の下端縁3aは、凹弧状に切除して側面板3をやや細幅として面方向に湾曲し易い形状としている。その他、固定部2には、柄体1の取付部1aの側面にビス止めするための取付孔10,10が穿設してある。   The lower edge of the front blade plate 4 is sharpened to form a cutting blade 5, and the lower edge 3a of the side plate 3 is cut into a concave arc shape so that the side plate 3 is slightly narrow and is easily curved in the surface direction. It has a shape. In addition, the fixing portion 2 is provided with mounting holes 10 and 10 for screwing to the side surface of the mounting portion 1a of the handle 1.

上記、刃体6を柄体1に固定し、草削り具として完成させた状態を図1及び図2に基づいて説明する。図1に示すように、柄体1の取付部1bは、把持部1aよりも広幅、具体的には幅W1を、正面刃板4の横幅Wに対して60%程度の広幅、実寸で略60mmとし、この取付部1bの側面に刃体の両端部に位置する固定部2,2を、それぞれビス9,9によって固定している。正面刃板4の幅Wが、取付部1bの幅W1よりも広幅であることから、側面板3は前方に向けて広がるように傾斜することになるが、図示実施形態では平面視で外側方に突出する円弧状に湾曲させている。側面板の長さは、正面刃板4の幅Wよりもやや短く、実寸で略80mm程度としている。 The state in which the blade body 6 is fixed to the handle body 1 and completed as a cutting tool will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the attachment portion 1b of the handle body 1 is wider than the grip portion 1a, the width W 1 in particular, wide about 60% the width W of the front blade plate 4, in actual size The fixing portions 2 and 2 positioned at both ends of the blade body are fixed to the side surfaces of the mounting portion 1b by screws 9 and 9, respectively. Since the width W of the front blade plate 4 is wider than the width W 1 of the mounting portion 1b, the side plate 3 is inclined so as to spread forward, but in the illustrated embodiment, it is outside in plan view. It is curved in an arc shape protruding in the direction. The length of the side plate is slightly shorter than the width W of the front blade 4 and is about 80 mm in actual size.

図2からも理解されるように、下端縁に削り刃を形成する正面刃板4は、前方に向けて突出する突弧状に形成する。また、側面板3と正面板4の折曲角度、すなわち、折れ線8による折曲角度を略直角とし、正面刃板4の両端部分ができるだけ作物などに当たらないように工夫している。   As can be understood from FIG. 2, the front blade plate 4 forming the cutting blade at the lower end edge is formed in a projecting arc shape protruding forward. Further, the bending angle of the side plate 3 and the front plate 4, that is, the bending angle by the broken line 8 is set to be substantially right angle so that both end portions of the front blade plate 4 do not hit the crop as much as possible.

前記側面板3と正面刃板4の寸法関係や湾曲形状とすることによって、削り刃5が形成される正面刃板4と把持部との間に適度な空間が形成され、図3に示す草削り作業に際して雑草を目視するのに都合がよく、柄部を握った手の把持力が削り刃に適度に作用する使い勝手の良い形状に完成させることができる。   By making the dimensional relationship and the curved shape of the side plate 3 and the front blade plate 4, an appropriate space is formed between the front blade plate 4 on which the cutting blade 5 is formed and the gripping portion, and the grass shown in FIG. It is convenient for visually checking weeds during the shaving operation, and it is possible to complete a user-friendly shape in which the gripping force of the hand gripping the handle is appropriately applied to the shaving blade.

先に述べたように、正面刃板を前方に突出するように湾曲させ、かつ下向きに傾斜させることによって、図2に示すように削り刃5のセンター位置が最も下方に位置することになる。正確には、湾曲による正面刃板中央部の突出寸法をYとすると、該部分における下方への突出寸法Xは、Ysinαとなる。前方に突出する如く湾曲する正面刃板4の中央部分が下方に位置することによって、図3に示すように、使用状態において除草しようとする雑草部分を深く抉るように、効果的に使用することができる。   As described above, by curving the front blade plate so as to protrude forward and inclining downward, the center position of the cutting blade 5 is positioned at the lowest position as shown in FIG. Precisely, if the protrusion dimension at the center portion of the front blade plate due to the curvature is Y, the downward protrusion dimension X at this part is Ysinα. The center portion of the front blade 4 that curves so as to protrude forward is positioned below, so that it effectively uses the weed portion to be weeded in the use state as shown in FIG. Can do.

図示、実施形態の本考案に係る草削り具は、例えば作物が二列に植え付けられている間の除草や、狭い間隔で植物が植え付けられている花壇の除草などに利用すると便利であるが、柄体を長寸法のものとすれば、立ち姿勢で使用する草削り具に応用することも可能である。また、各部の具体的な寸法は、使用する場所の条件や使用目的によって変更することができるのは勿論である。   The grass cutting tool according to the present invention of the illustrated embodiment is convenient to use for weeding, for example, while crops are planted in two rows, or for weeding a flower bed in which plants are planted at narrow intervals, etc. If the handle has a long dimension, it can be applied to a cutting tool used in a standing posture. Of course, the specific dimensions of each part can be changed according to the conditions of the place of use and the purpose of use.

図5に示す実施形態の草削り具は、正面刃板4の上下幅を側面板3の上下幅より大きく形成し、正面刃板4の四隅が側面板3よりも上下方向に突出する突出部11,11を形成したものである。突出部11は、正面刃板4の四隅が側面板3から突出するものであるため、側面刃板3に邪魔されることなく、突出部11を使って土を掘り起こすような作業を行うことができ、深く根を張った雑草を取り除く場合などに便利である。   The grass cutting tool of the embodiment shown in FIG. 5 is formed so that the vertical width of the front blade plate 4 is larger than the vertical width of the side plate 3, and the four corners of the front blade plate 4 protrude in the vertical direction from the side plate 3. 11 and 11 are formed. Since the projecting portion 11 has four corners of the front blade plate 4 projecting from the side plate 3, the projecting portion 11 can be used to dig up the soil without being disturbed by the side blade plate 3. This is useful for removing deep-rooted weeds.

図5に示す実施形態の場合、正面刃板4の上下両端縁に削り刃5が形成してあり、正面刃板4の上下両端縁が、側面板よりも大きく突出している。そのため、下縁の削り刃5を使用する場合において削り刃の突出量が多く、側面板3が邪魔になることなく、円滑にし除草作業作業を進めることができる。すなわち、図1ないし図4に示す実施形態の草削り具よりも、地表面を深く削り込んで除草作業を行うことが可能となる。また、上下反転させて、上縁の削り刃も使用することができる。   In the case of the embodiment shown in FIG. 5, the cutting blades 5 are formed on the upper and lower end edges of the front blade plate 4, and the upper and lower end edges of the front blade plate 4 protrude larger than the side plate. For this reason, when the lower edge cutting blade 5 is used, the amount of protrusion of the cutting blade is large, and the side plate 3 can be smoothly obstructed so that the weeding operation can proceed smoothly. That is, it is possible to perform the weeding work by deeply cutting the ground surface as compared with the grass cutting tool of the embodiment shown in FIGS. Further, it is possible to use an upper edge shaving blade by turning it upside down.

さらに、図5に示す実施形態の場合、図7に示すように、側面板3と正面刃板4の折曲角度を鋭角とし、正面刃板4から柄体1に向けて直線的に傾斜させている。このように、側面板3の膨らみをなくし、直線的に形成するものでは、草削り具を動かして作業をする場合に、側面の膨らみが植物やそれ以外のものにぶつかる可能性が少なくなり、より狭い場所での作業が可能となるものである。   Further, in the case of the embodiment shown in FIG. 5, as shown in FIG. 7, the bending angle between the side plate 3 and the front blade plate 4 is an acute angle, and is inclined linearly from the front blade plate 4 toward the handle 1. ing. Thus, in the case of eliminating the bulge of the side plate 3 and forming it in a straight line, the possibility of the bulge of the side surface colliding with plants or other things when moving the grass cutter is reduced, Work in a narrower space is possible.

本発明に係る草削り具の製造に際しては、図4や図6に展開図として示すように、一枚の板材で成型することができるものであり、図1ないし図4に示す第一の実施形態の商品と、図5及び図6に示す第二の実施形態の商品との違いは、鋼板の打ち抜き加工に際して、打ち抜きの形状を変更するもので、同じ工程で製造することができるものである。   In the production of the cutting tool according to the present invention, as shown in the developed view in FIG. 4 or FIG. 6, it can be molded with a single plate material, and the first embodiment shown in FIG. 1 to FIG. The difference between the product of the form and the product of the second embodiment shown in FIG. 5 and FIG. 6 is that the shape of the punching is changed at the time of punching the steel sheet, and can be manufactured in the same process. .

図1は、本発明の実施形態を示す草削り具全体の平面図、FIG. 1 is a plan view of the entire cutting tool showing an embodiment of the present invention, 図2は、図1に示す草刈り具の、一部を切断して示す正面図、FIG. 2 is a front view of the mowing tool shown in FIG. 図3は、図1に示す草刈り具の、使用状態を示す略図、FIG. 3 is a schematic diagram showing a use state of the mowing tool shown in FIG. 図4は、図1に示す草刈具の刃体全体の展開図、4 is a development view of the entire blade of the grass cutter shown in FIG. 図5は、本発明の別の実施形態を示す草刈り具の、一部を切断して示す正面図、FIG. 5 is a front view of the mowing tool showing another embodiment of the present invention, with a part cut away; 図6は、図5に示す草刈り具の、刃体全体の展開図、FIG. 6 is a development view of the entire blade body of the mowing tool shown in FIG. 図7は、図5に示す実施形態の草刈り具全体の平面図、FIG. 7 is a plan view of the entire mowing tool of the embodiment shown in FIG. 図8は、従来の草刈り具の一例を示す平面図である。FIG. 8 is a plan view showing an example of a conventional mowing tool.

符号の説明Explanation of symbols

1…柄体、 1a…把持部、 1b…取付部、 2…固定部、 3…側面板、 3a…下端縁、4…正面刃板、 5…削り刃、 6…刃体、 7,8…折れ線、 9…ビス、 10…取付孔、 11…突出部。 DESCRIPTION OF SYMBOLS 1 ... Pattern body, 1a ... Grip part, 1b ... Mounting part, 2 ... Fixed part, 3 ... Side plate, 3a ... Bottom edge, 4 ... Front blade board, 5 ... Shaving blade, 6 ... Blade body, 7, 8 ... Broken line, 9 ... screw, 10 ... mounting hole, 11 ... projecting part.

Claims (4)

柄体の左右両側面に固定する固定部と、先方に向けて広がる側面板と、側面板に対して折曲状態で連続する正面刃板を一枚の鋼板によって形成し、側面板と正面刃板との折れ線を側面板の長手方向と直交する方向に対して傾斜させることによって正面刃板を下向きに傾斜させるとともに、正面刃板を前方に向けて突出する突弧状に形成したことを特徴とする草削り具。 A fixed part that fixes to the left and right side surfaces of the handle, a side plate that spreads toward the front, and a front blade that continues in a bent state with respect to the side plate are formed from a single steel plate. The front blade plate is inclined downward by inclining the fold line with the plate with respect to the direction perpendicular to the longitudinal direction of the side plate, and the front blade plate is formed in a projecting arc shape protruding forward. Mowing tool to be used. 側面板と正面刃板の折曲角度が直角もしくは鈍角であって、側面板を円弧状に湾曲させたことを特徴とする請求項1記載の草削り具。   The cutting tool according to claim 1, wherein the bending angle between the side plate and the front blade plate is a right angle or an obtuse angle, and the side plate is curved in an arc shape. 側面板と正面刃板の折曲角度が直角もしくは鋭角であって、側面板を正面刃板から柄体に向けて直線的に傾斜させたことを特徴とする請求項1記載の草削り具。 The cutting tool according to claim 1, wherein the bending angle between the side plate and the front blade plate is a right angle or an acute angle, and the side plate is linearly inclined from the front blade plate toward the handle. 側面板は前端部において正面刃板よりも細幅とし、正面刃板の四隅が側面板よりも上下方向に突出する突出部を形成したことを特徴とする請求項1ないし3のいずれかに記載の草削り具。
The side plate is narrower than the front blade at the front end portion, and four corners of the front blade are formed with protrusions that protrude in the vertical direction from the side plate. Grass cutting tool.
JP2006036142A 2006-02-14 2006-02-14 Weaver Expired - Fee Related JP4646820B2 (en)

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TWI689243B (en) * 2018-12-25 2020-04-01 杜佳晉 Weeding tools

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715101U (en) * 1980-06-30 1982-01-26
JPH0342547U (en) * 1989-09-01 1991-04-22
JPH0724001U (en) * 1993-10-09 1995-05-09 求 永井 Weeder

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Publication number Priority date Publication date Assignee Title
JP3042547U (en) * 1997-04-15 1997-10-21 茂雄 増島 Field rectifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5715101U (en) * 1980-06-30 1982-01-26
JPH0342547U (en) * 1989-09-01 1991-04-22
JPH0724001U (en) * 1993-10-09 1995-05-09 求 永井 Weeder

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