JP2012244977A - Cutting blade for bush cutter - Google Patents

Cutting blade for bush cutter Download PDF

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JP2012244977A
JP2012244977A JP2011121680A JP2011121680A JP2012244977A JP 2012244977 A JP2012244977 A JP 2012244977A JP 2011121680 A JP2011121680 A JP 2011121680A JP 2011121680 A JP2011121680 A JP 2011121680A JP 2012244977 A JP2012244977 A JP 2012244977A
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blade
fixed
rotary
cutting
brush cutter
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JP5670257B2 (en
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Koji Sakata
光司 坂田
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D34/00—Mowers; Mowing apparatus of harvesters
    • A01D34/01—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus
    • A01D34/412—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters
    • A01D34/63—Mowers; Mowing apparatus of harvesters characterised by features relating to the type of cutting apparatus having rotating cutters having cutters rotating about a vertical axis
    • A01D34/73—Cutting apparatus

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvester Elements (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a cutting blade for a bush cutter obtaining a higher cutting effect than a conventional two-blade cutting blade and mountable to a bush cutter on the market.SOLUTION: The cutting blade of double structure is provided by placing a cutting blade of the same shape over the board surface of a disk-like cutting blade. One cutting blade is formed as a rotary blade 10 connected to a rotating shaft Q, and the other cutting blade is formed as a fixed blade 20 fixed so as not to rotate. The fixed blade 20 is rotatably connected to the upper face of the rotary blade 10. The upper face of the fixed blade 20 is provided with a fixed blade locking implement 21 so as to be locked to the tip part of the bush cutter 1. The cutting blade is constituted to rotate only the rotary blade 10 along the board surface of the fixed blade 20.

Description

本発明は、二枚重ねの刈刃によって、芝や雑草、立木や竹などを刈り取るのに好適な刈払機用刈刃に係り、市販の刈払機にも装着することができる刈払機用刈刃に関するものである。   The present invention relates to a cutting blade for a brush cutter suitable for cutting grass, weeds, standing trees, bamboo, and the like with a two-layered cutting blade, and relates to a cutting blade for a brush cutter that can be mounted on a commercial brush cutter. It is.

従来、二枚重ねの刈刃を同時に正逆転させる刈払機として、特許文献１に記載された草刈機や、特許文献２に記載された刈払機が提案されている。   2. Description of the Related Art Conventionally, as a brush cutter that simultaneously forwards and reverses two stacked blades, a grass cutter described in Patent Document 1 and a brush cutter described in Patent Document 2 have been proposed.

特許文献１に記載の草刈機は、一方の刈刃の駆動軸と他方の刈刃の駆動軸との間にベベルギヤ式逆転駆動機構を介装したものである。   The mower described in Patent Document 1 has a bevel gear type reverse drive mechanism interposed between a drive shaft of one cutting blade and a drive shaft of the other cutting blade.

また、特許文献２の刈払機は、当発明者が提案したもので、略三角柱状の切刃にリード片を延長した切刃を使用するもので、駆動源に連結する回転シャフトにベベルギヤを介し、上下に重なった２枚の切刃を正逆方向へ水平回転させるものである。   Further, the brush cutter of Patent Document 2 is proposed by the present inventor and uses a cutting blade obtained by extending a lead piece on a substantially triangular prism-shaped cutting blade. A bevel gear is connected to a rotating shaft connected to a driving source. The two cutting blades overlapped vertically are rotated horizontally in the forward and reverse directions.

実開平２−１４９２３号公報Japanese Utility Model Publication No. 2-14923 特許第２７９４５０７号公報Japanese Patent No. 2794507

特許文献１及び特許文献２の刈払機は、いずれも回転シャフトにベベルギヤを介し、２枚の刈刃を同時に正逆回転させるものである。そのため、刈払機の構成を駆動軸から改良する必要があり、１枚の刈刃を交換自在に装着する市販の刈払機に、正逆回転する２枚の刈刃を装着することは不可能であった。   The brush cutters of Patent Literature 1 and Patent Literature 2 both rotate the two blades simultaneously forward and backward through a bevel gear on a rotating shaft. Therefore, it is necessary to improve the structure of the brush cutter from the drive shaft, and it is impossible to mount two blades that rotate forward and backward on a commercially available brush cutter that mounts one blade blade interchangeably. there were.

また、いずれの刈払機も上下二枚の刈刃を正逆方向へ同時に水平回転させることで、一枚の刈刃よりも切削効果を高めようとするものである。ところが、当発明者の研究によると、上下二枚の刈刃を同時に正逆回転させるよりも、いずれか一方の刈刃を固定し、他方の刈刃のみを回転させることで、より高い切削効果が得られることが実験で明らかになった。   Each brush cutter attempts to enhance the cutting effect more than a single cutting blade by simultaneously rotating the two upper and lower cutting blades horizontally in the forward and reverse directions. However, according to the research of the present inventors, it is possible to obtain a higher cutting effect by fixing either one of the cutting blades and rotating only the other cutting blade, rather than simultaneously rotating the two upper and lower cutting blades simultaneously. It became clear through experiments that

そこで本発明は、従来の課題を解消すべく創出されたもので、従来の二枚重ねの刈刃よりも高い切削効果が得られ、しかも、市販の刈払機にも装着することが可能な刈払機用刈刃の提供を目的とするものである。   Therefore, the present invention was created to solve the conventional problems, and has a higher cutting effect than a conventional two-layered cutting blade, and for a brush cutter that can be mounted on a commercially available brush cutter. The purpose is to provide a cutting blade.

上述の目的を達成すべく本発明における第１の手段は、刈払機１に装着された回転シャフトＱの先端に連結される刈払機用刈刃において、円板状の刈刃の盤面に同じ形状の刈刃を重ねて二重構造の刈刃を設け、一方の刈刃を回転シャフトＱに連結する回転刃１０とし、他方の刈刃を刈払機１の先端に固定する固定刃２０とし、該固定刃２０の盤面に沿って回転刃１０のみが回転するように構成したことにある。   In order to achieve the above object, the first means in the present invention is a brush cutter blade connected to the tip of the rotary shaft Q attached to the brush cutter 1 and has the same shape as the disk surface of the disc-shaped cutter blade. A pair of cutting blades are provided to form a rotary blade 10 that connects one of the cutting blades to the rotary shaft Q, and a stationary blade 20 that fixes the other cutting blade to the tip of the brush cutter 1; That is, only the rotary blade 10 is configured to rotate along the surface of the fixed blade 20.

第２の手段の前記固定刃２０は、前記回転刃１０の上面に回転自在に連結され、固定刃２０の上面に固定刃係止具２１を設け、該固定刃係止具２１が刈払機１の先端部分に係止して回転刃１０の回転時に固定刃２０のみが固定されるように構成している。   The fixed blade 20 of the second means is rotatably connected to the upper surface of the rotary blade 10, and a fixed blade locking tool 21 is provided on the upper surface of the fixed blade 20, and the fixed blade locking tool 21 is the brush cutter 1. The stationary blade 20 is locked so that only the fixed blade 20 is fixed when the rotary blade 10 is rotated.

第３の手段は、前記回転刃１０の上面に前記回転シャフトＱの先端を覆うヘッドカバーＳを囲むようにドーナツ形状の固定基板１１を固定し、該固定基板１１の周囲に前記固定刃２０を回転自在に装着したものである。   The third means fixes the doughnut-shaped fixed substrate 11 on the upper surface of the rotary blade 10 so as to surround the head cover S covering the tip of the rotary shaft Q, and rotates the fixed blade 20 around the fixed substrate 11. It is attached freely.

第４の手段は、前記固定刃２０の上面に該固定刃２０の強度を高める補強板２２を固定し、該補強板２２に前記固定刃係止具２１を設けたことにある。   The fourth means is that a reinforcing plate 22 for increasing the strength of the fixed blade 20 is fixed to the upper surface of the fixed blade 20, and the fixed blade locking tool 21 is provided on the reinforcing plate 22.

本発明の請求項１によると、固定刃２０の盤面に沿って回転刃１０のみが回転するように構成したことにより、バリカンと同じ原理で切削することが可能になった。すなわち、被切削物を固定刃２０で安定させた状態で、回転刃１０が効果的に切削できるようになったものである。   According to the first aspect of the present invention, since only the rotary blade 10 is rotated along the surface of the fixed blade 20, cutting can be performed on the same principle as the clipper. That is, the rotary blade 10 can be effectively cut in a state where the workpiece is stabilized by the fixed blade 20.

また、請求項２のごとく、固定刃２０の構成を、回転刃１０の上面に回転自在に連結し、固定刃２０の上面に固定刃係止具２１を設け、該固定刃係止具２１が刈払機１の先端部分に係止して回転刃１０の回転時に固定刃２０のみが固定されるように構成したことにより、回転刃１０を回転シャフトＱに連結するだけで、固定刃２０の固定刃係止具２１が刈払機１の先端に係止する。この結果、市販の刈払機１に装着することが可能になったものである。   Further, as in claim 2, the configuration of the fixed blade 20 is rotatably connected to the upper surface of the rotary blade 10, and the fixed blade locking tool 21 is provided on the upper surface of the fixed blade 20. The fixed blade 20 can be fixed simply by connecting the rotary blade 10 to the rotary shaft Q by engaging with the tip portion of the brush cutter 1 so that only the fixed blade 20 is fixed when the rotary blade 10 rotates. The blade locking tool 21 is locked to the tip of the brush cutter 1. As a result, it can be mounted on a commercially available brush cutter 1.

更に、請求項３では、回転刃１０の上面に前記回転シャフトＱの先端を覆うヘッドカバーＳを囲むようにドーナツ形状の固定基板１１を固定し、該固定基板１１の周囲に前記固定刃２０を回転自在に装着しているので、回転刃１０と固定刃２０をコンパクトに一体化することができた。この結果、市販の一枚タイプの刈刃を交換するように、本発明刈刃を簡単に装着することができる。   Further, in claim 3, the doughnut-shaped fixed substrate 11 is fixed to the upper surface of the rotary blade 10 so as to surround the head cover S covering the tip of the rotary shaft Q, and the fixed blade 20 is rotated around the fixed substrate 11. Since it was freely mounted, the rotary blade 10 and the fixed blade 20 could be integrated in a compact manner. As a result, the cutting blade of the present invention can be easily mounted so as to replace a commercially available single blade.

請求項４によると、固定刃２０の上面に該固定刃２０の強度を高める補強板２２を固定し、該補強板２２に前記固定刃係止具２１を設けたことで、固定刃２０がより安定するものになる。この結果、被切削物の安定性も高まり、より効果的な切削効果を得ることができる。   According to the fourth aspect of the present invention, the reinforcing plate 22 that increases the strength of the fixed blade 20 is fixed to the upper surface of the fixed blade 20, and the fixed blade locking tool 21 is provided on the reinforcing plate 22. It will be stable. As a result, the stability of the workpiece is increased and a more effective cutting effect can be obtained.

本発明で使用する刈払機の一実施例を示す斜視図である。It is a perspective view which shows one Example of the brush cutter used by this invention. 本発明刈刃の一実施例を示す斜視図である。It is a perspective view which shows one Example of this invention cutting blade. 本発明刈刃の使用状態を示す斜視図である。It is a perspective view which shows the use condition of this invention cutting blade. 本発明の装着状態を示す要部断面図である。It is principal part sectional drawing which shows the mounting state of this invention.

本発明によると、従来の二枚重ねの刈刃よりも高い切削効果が得られ、しかも、市販の刈刃と同じように、市販の刈払機にも装着することが可能になるなどといった当初の目的を達成した。   According to the present invention, it is possible to obtain a higher cutting effect than a conventional two-layered cutting blade, and it is possible to mount it on a commercially available brush cutter like a commercially available cutting blade. Achieved.

以下、本発明の実施例を説明する。本発明刈刃の特徴は、高い切削効果が得られるようにするために、回転刃１０と固定刃２０とを重ねて固定刃２０を固定した構成にある（図２参照）。   Examples of the present invention will be described below. The feature of the cutting blade of the present invention is that the fixed blade 20 is fixed by overlapping the rotary blade 10 and the fixed blade 20 in order to obtain a high cutting effect (see FIG. 2).

すなわち、回転刃１０は、回転シャフトＱに連結され回転シャフトＱの駆動力で回転する。一方、固定刃２０は、回転しないように固定するもので、該固定刃２０の盤面に沿って回転刃１０のみが回転するように構成している（図４参照）。   That is, the rotary blade 10 is connected to the rotary shaft Q and rotates with the driving force of the rotary shaft Q. On the other hand, the fixed blade 20 is fixed so as not to rotate, and is configured such that only the rotary blade 10 rotates along the surface of the fixed blade 20 (see FIG. 4).

この固定刃２０は、回転刃１０の上面に回転自在に連結されている（図２参照）。そして、固定刃２０の上面に固定刃係止具２１を設け、該固定刃係止具２１が刈払機１の先端部分に係止して回転刃１０の回転時に固定刃２０のみが固定されるように構成している（図３参照）。   The fixed blade 20 is rotatably connected to the upper surface of the rotary blade 10 (see FIG. 2). A fixed blade locking tool 21 is provided on the upper surface of the fixed blade 20, and the fixed blade locking tool 21 is locked to the tip portion of the brush cutter 1, and only the fixed blade 20 is fixed when the rotary blade 10 rotates. (See FIG. 3).

図示の刈払機１は、駆動源Ｐに連結する回転シャフトＱを保護管Ｒ内に収納し、回転シャフトＱ先端と刈刃とを連結する部分にヘッドカバーＳを設けたもので、このヘッドカバーＳの下面に刈刃を着脱自在に装着せしめる刈払機１である（図１参照）。したがって、固定刃２０の固定刃係止具２１が係止する刈払機１の先端とは、図示例によると保護管Ｒ側面になっている（図３参照）。そして、この固定刃係止具２１を保護管Ｒの側面に係止させることで、固定刃２０が回転しないように固定するものである。   The illustrated brush cutter 1 stores a rotating shaft Q connected to a drive source P in a protective tube R, and is provided with a head cover S at a portion connecting the tip of the rotating shaft Q and a cutting blade. A brush cutter 1 in which a cutting blade is detachably attached to a lower surface (see FIG. 1). Therefore, the tip of the brush cutter 1 that the fixed blade locking tool 21 of the fixed blade 20 locks is the side surface of the protective tube R according to the illustrated example (see FIG. 3). And by fixing this fixed blade locking tool 21 to the side surface of the protective tube R, the fixed blade 20 is fixed so as not to rotate.

また、図示の固定刃係止具２１は平面Ｌ字状を成した金属柱で形成しているが、材質や形状、数などは任意に変更することができる。そして、固定刃係止具２１の形状に応じて係止するだけの構成から、たとえば回転シャフトＱやヘッドカバーＳを挟着して固定する構成に変更することも可能である。要は、刈払機１の先端を利用して固定刃２０が回転しないようする構成であれば良い。   Moreover, although the illustrated fixed blade locking tool 21 is formed of a metal column having a planar L shape, the material, shape, number, and the like can be arbitrarily changed. And it is also possible to change from the structure which only latches according to the shape of the fixed blade locking tool 21 to the structure which clamps and fixes the rotating shaft Q and the head cover S, for example. In short, any configuration that prevents the fixed blade 20 from rotating using the tip of the brush cutter 1 may be used.

回転刃１０と固定刃２０との連結構造は、例えば次のような構成である。すなわち、回転刃１０の上面にヘッドカバーＳを囲む固定基板１１を固定する。そして、この固定基板１１の周囲に前記固定刃２０を回転自在に連結する。このように固定刃２０を連結した状態で回転刃１０を回転シャフトＱで回転させると、固定刃２０が固定刃係止具２１で固定されるので、固定刃２０の片面に沿って回転刃１０が回転するものである。   The connection structure of the rotary blade 10 and the fixed blade 20 has the following configuration, for example. That is, the fixed substrate 11 surrounding the head cover S is fixed to the upper surface of the rotary blade 10. Then, the fixed blade 20 is rotatably connected around the fixed substrate 11. When the rotary blade 10 is rotated by the rotary shaft Q in a state where the fixed blade 20 is connected in this way, the fixed blade 20 is fixed by the fixed blade locking tool 21, so that the rotary blade 10 is moved along one surface of the fixed blade 20. Is what rotates.

図示例の回転刃１０は、回転刃１０の上面に固定基板１１をスポット溶接にて溶着したものである（図４参照）。この回転刃１０を、回転シャフトＱに連結するには、回転刃１０の中心に開穿された軸孔１２に回転シャフトＱを挿通し、固定板１３と固定ナット１４で固定する。   The rotary blade 10 in the illustrated example has a fixed substrate 11 welded to the upper surface of the rotary blade 10 by spot welding (see FIG. 4). In order to connect the rotary blade 10 to the rotary shaft Q, the rotary shaft Q is inserted into the shaft hole 12 opened at the center of the rotary blade 10 and fixed by the fixing plate 13 and the fixing nut 14.

一方、固定刃２０は、固定基板１１の周囲にボールベアリング２３を介して回転自在に連結する。このとき、固定刃２０の上面に補強板２２をスポット溶接にて接合し、固定刃２０と補強板２２とで厚くなった端部にボールベアリング２３が当るように形成している（図４参照）。図示の補強板２２は矩形状をなしているが、円形状など他の形状に変更することも可能である。   On the other hand, the fixed blade 20 is rotatably connected to the periphery of the fixed substrate 11 via a ball bearing 23. At this time, the reinforcing plate 22 is joined to the upper surface of the fixed blade 20 by spot welding, and the ball bearing 23 is formed so as to contact the thickened end portion of the fixed blade 20 and the reinforcing plate 22 (see FIG. 4). ). Although the illustrated reinforcing plate 22 has a rectangular shape, it can be changed to other shapes such as a circular shape.

更に、このボールベアリング２３の回転部分に切り枝等が侵入しないようにするため、蓋体１５を設けている（図４参照）。図示例の蓋体１５は矩形状を成し、固定基板１１の上面にスポット溶接にて溶着したものである（図３参照）。また、蓋体１５を補強板２２に固定してもよく、この場合、蓋体１５と固定刃係止具２１とを一体に構成することも可能である。   Further, a lid 15 is provided to prevent the cut branches and the like from entering the rotating portion of the ball bearing 23 (see FIG. 4). The illustrated lid 15 has a rectangular shape and is welded to the upper surface of the fixed substrate 11 by spot welding (see FIG. 3). In addition, the lid 15 may be fixed to the reinforcing plate 22, and in this case, the lid 15 and the fixed blade locking tool 21 can be configured integrally.

このように、回転刃１０と固定刃２０とが一体化されると、回転シャフトＱに連結する前の状態では、固定刃２０上面の固定基板１１周囲を回転刃１０が回転する状態の二重刃構造になっている（図２参照）。そして、回転刃１０を市販の刈刃と同じ手順で回転シャフトＱに連結し、回転シャフトＱを駆動させると、回転刃１０が回転すると共に、この回転刃１０に伴って固定刃２０も回転する。その後、すぐに固定刃係止具２１が保護管Ｒに係止するので、固定刃２０のみが固定される。その後は、固定刃２０の下面に沿って回転刃１０のみが回転することになる（図３、図４参照）。   As described above, when the rotary blade 10 and the fixed blade 20 are integrated, in a state before being connected to the rotary shaft Q, the rotary blade 10 rotates around the fixed substrate 11 on the upper surface of the fixed blade 20. It has a blade structure (see FIG. 2). When the rotary blade 10 is connected to the rotary shaft Q in the same procedure as a commercially available cutting blade and the rotary shaft Q is driven, the rotary blade 10 rotates and the fixed blade 20 also rotates with the rotary blade 10. . Then, since the fixed blade locking tool 21 is immediately locked to the protective tube R, only the fixed blade 20 is fixed. Thereafter, only the rotary blade 10 rotates along the lower surface of the fixed blade 20 (see FIGS. 3 and 4).

回転刃１０と固定刃２０は、いずれも市販の刈刃と同じ形状を成すものである。したがって、円板の周囲に４枚の刃を設けた４枚刃や、刃を８枚設けた８枚刃、あるいは多数の刃を設けた丸鋸刃などの刈刃が使用される。このように回転刃１０や固定刃２０の形状は、従来使用されている円盤状の刈刃であればどのようなものでも使用可能である。また、回転刃１０と固定刃２０の刃の向きは、同一方向を向けて重ねても良いし、逆向きで重ねてもよい。   Both the rotary blade 10 and the fixed blade 20 have the same shape as a commercially available cutting blade. Accordingly, a cutting blade such as a four-blade having four blades around the disk, an eight-blade having eight blades, or a circular saw blade having a large number of blades is used. As described above, any shape of the rotary blade 10 and the fixed blade 20 can be used as long as it is a disc-shaped cutting blade conventionally used. Moreover, the direction of the blades of the rotary blade 10 and the fixed blade 20 may be overlapped in the same direction or in opposite directions.

尚、図示例では、回転刃１０と固定基板１１、あるいは固定刃２０と補強板２２など、各部材の連結手段としてスポット溶接を選択しているが、連結手段はこれに限定されるものではなく、ボルトやナット等を利用したネジ止め手段等に変えることも可能である。   In the illustrated example, spot welding is selected as a connecting means for each member such as the rotary blade 10 and the fixed substrate 11, or the fixed blade 20 and the reinforcing plate 22, but the connecting means is not limited to this. It is also possible to change to screwing means using bolts or nuts.

本発明で使用する刈払機１の駆動源Ｐは、エンジン式又は電動式を問わないものである。また、本発明の回転刃１０と固定刃２０との連結手段や固定刃２０の固定手段は図示例に限られるものではなく、本発明の要旨を変更しない範囲内において自由に設計変更できるものである。   The drive source P of the brush cutter 1 used in the present invention may be an engine type or an electric type. Further, the means for connecting the rotary blade 10 and the fixed blade 20 and the means for fixing the fixed blade 20 according to the present invention are not limited to the illustrated examples, and the design can be freely changed within a range not changing the gist of the present invention. is there.

Ｐ 駆動源
Ｑ 回転シャフト
Ｒ 保護管
Ｓ ヘッドカバー
１ 刈払機
１０ 回転刃
１１ 固定基板
１２ 軸孔
１３ 固定板
１４ 固定ナット
１５ 蓋体
２０ 固定刃
２１ 係止突起
２２ 補強板
２３ ボールベアリング
２４ 蓋体 P Drive source Q Rotating shaft R Protective tube S Head cover 1 Brush cutter 10 Rotating blade 11 Fixed substrate 12 Shaft hole 13 Fixed plate 14 Fixed nut 15 Lid body 20 Fixed blade 21 Locking projection 22 Reinforcement plate 23 Ball bearing 24 Lid

Claims (4)

刈払機に装着された回転シャフトの先端に連結される刈払機用刈刃において、円板状の刈刃の盤面に同じ形状の刈刃を重ねて二重構造の刈刃を設け、一方の刈刃を回転シャフトに連結する回転刃とし、他方の刈刃を刈払機の先端に固定する固定刃とし、該固定刃の盤面に沿って回転刃のみが回転するように構成したことを特徴とする刈払機用刈刃。   A brush cutter for a brush cutter connected to the tip of a rotary shaft attached to the brush cutter is provided with a double-structured cutter blade by overlapping the same shape of the blade with a disk-shaped cutter blade surface. The blade is a rotary blade that is connected to the rotary shaft, and the other cutting blade is a fixed blade that is fixed to the tip of the brush cutter, and only the rotary blade rotates along the surface of the fixed blade. Cutting blade for brush cutter. 前記固定刃は、前記回転刃の上面に回転自在に連結され、固定刃の上面に固定刃係止具を設け、該固定刃係止具が刈払機の先端部分に係止して回転刃の回転時に固定刃のみが固定されるように構成した請求項１記載の刈払機用刈刃。   The fixed blade is rotatably connected to the upper surface of the rotary blade, and a fixed blade locking tool is provided on the upper surface of the fixed blade. The brush blade for a brush cutter according to claim 1, wherein only the fixed blade is fixed during rotation. 前記回転刃の上面に前記回転シャフトの先端を覆うヘッドカバーを囲むようにドーナツ形状の固定基板を固定し、該固定基板の周囲に前記固定刃を回転自在に装着した請求項２記載の刈払機用刈刃。   The brush cutter according to claim 2, wherein a donut-shaped fixed substrate is fixed to an upper surface of the rotary blade so as to surround a head cover that covers a tip of the rotary shaft, and the fixed blade is rotatably mounted around the fixed substrate. Cutting blade. 前記固定刃の上面に該固定刃の強度を高める補強板を固定し、該補強板に前記固定刃係止具を設けた請求項２記載の刈払機用刈刃。   The cutting blade for a brush cutter according to claim 2, wherein a reinforcing plate for increasing the strength of the fixed blade is fixed to an upper surface of the fixed blade, and the fixed blade locking tool is provided on the reinforcing plate.
JP2011121680A 2011-05-31 2011-05-31 Brush cutter for brush cutter Expired - Fee Related JP5670257B2 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111201893A (en) * 2020-01-19 2020-05-29 陕西科技大学 Portable cherry picking device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219437U (en) * 1975-07-30 1977-02-10
JPH0553427U (en) * 1991-12-27 1993-07-20 株式会社アーレスティ Cutting blade unit for mower
JP2002153113A (en) * 2000-11-21 2002-05-28 Yozo Date Rotary reaping knife with bed knife and fixation apparatus equipped with the same
JP2008182919A (en) * 2007-01-29 2008-08-14 Tenryu Saw Mfg Co Ltd Bush cutter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5219437U (en) * 1975-07-30 1977-02-10
JPH0553427U (en) * 1991-12-27 1993-07-20 株式会社アーレスティ Cutting blade unit for mower
JP2002153113A (en) * 2000-11-21 2002-05-28 Yozo Date Rotary reaping knife with bed knife and fixation apparatus equipped with the same
JP2008182919A (en) * 2007-01-29 2008-08-14 Tenryu Saw Mfg Co Ltd Bush cutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111201893A (en) * 2020-01-19 2020-05-29 陕西科技大学 Portable cherry picking device

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