JP2007082503A - Cutting blade for bush cutter - Google Patents

Cutting blade for bush cutter Download PDF

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JP2007082503A
JP2007082503A JP2005278029A JP2005278029A JP2007082503A JP 2007082503 A JP2007082503 A JP 2007082503A JP 2005278029 A JP2005278029 A JP 2005278029A JP 2005278029 A JP2005278029 A JP 2005278029A JP 2007082503 A JP2007082503 A JP 2007082503A
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blade
blades
cutting
polishing
continuous
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Hidesada Kobayashi
秀禎 小林
Masayuki Kobayashi
正幸 小林
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KOBAYASHI TEKKOSHO KK
Kobayashi Iron Works Co Ltd
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KOBAYASHI TEKKOSHO KK
Kobayashi Iron Works Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a cutting blade for a bush cutter, which cuts small-diameter trees, soft weeds, etc. <P>SOLUTION: The cutting blade for a bush cutter has a constitution that a plurality of blade parts 3 are formed on the outer peripheral edge of a disklike base metal 2 and the blade parts 3 comprise a plurality of chip blades 5 which have shallow blade bottoms 4 and are continued at short pitches p1 in the peripheral direction and grinding blades 8 which have deep blade bottoms 6, are positioned between a plurality of the successive chip blades 5 and formed at long pitches p2 in the peripheral direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、山林下刈時における小径木や潅木を含む雑草の刈払いや、草刈時におけるすすきや雑草の刈払いに用いる刈払機用刈刃に関する。   The present invention relates to a cutting blade for a brush cutter used for cutting out weeds including small-diameter trees and shrubs when cutting down a forest, and for cutting out plows and weeds during cutting.

従来より、小径木や潅木を含む雑草を刈る山林下刈や、細い立木や笹、すすき等を刈る草刈、畦草や雑草等を刈る草刈には、刈刃（チップソー）が設けられたエンジン式刈払機が一般的に使用されている。一般的な刈払機は、内部に回転軸が支持された長尺の操作杆を有し、この操作杆の後端に駆動エンジンを備え、先端に刈刃が取付けられている。このような刈払機は、作業者が肩に掛け、刈刃を数千回転で回転させて操作杆を左右に移動させることにより、回転する刈刃で前記小径木や雑草等の刈払い操作を行う。刈刃は、操作杆の内部に設けられた回転軸によって回転駆動され、種々の刈刃に交換できるように構成されている。この刈払機に使用される刈刃としては、円盤状の台金の外周縁に複数の切断刃を形成したものが一般的に使用されている。   Conventionally, engine-type cutting with a cutting blade (tip saw) has been provided for cutting down weeds including small-diameter trees and shrubs, for cutting down thin trees, bushes, and plows, and for cutting down grass and weeds. Payment machines are commonly used. A general brush cutter has a long operation rod with a rotating shaft supported therein, a drive engine at the rear end of the operation rod, and a cutting blade attached to the tip. In such a brush cutter, an operator hangs on the shoulder, rotates the cutting blade by several thousand rotations, and moves the operation rod to the left and right, thereby performing the cutting operation of the small-diameter trees and weeds with the rotating cutting blade. Do. The cutting blade is configured to be rotationally driven by a rotary shaft provided inside the operation rod and exchangeable with various cutting blades. As a cutting blade used for this brush cutter, what formed the some cutting blade in the outer periphery of the disk-shaped base metal is generally used.

一方、前記したように、刈る対象物には種々の物があるため、刈払機に取付ける刈刃としては、刈る対象物の主たる種類に応じて刈刃を選択している。一般的に、前記山林下刈には刃数が多い刈刃が用いられ、前記草刈には刃数が少ない刈刃が用いられている。これは、小径木や硬い草等は、刃のピッチが長い少ない刃で刈ろうとすると刃の間に小径木等を噛み込んで刈り難いので、刃のピッチが短い多くの刃で少しずつ切った方が１刃当りの負荷が少なく効率的に刈払い作業を行うことができる、という考えに基づき、畦草のように柔らかい草は、刃のピッチが短い多くの刃で刈ろうとすると草が刈刃から逃げて刈り難いので、刃のピッチが長い少ない刃で刃の間に草が入り易いようにすれば効率良く刈払い作業を行うことができる、という考えに基いている。このように、刈払機用刈刃は用途に応じて使い分けなければ効率を悪化させるため、一般的に、前記したように刈る対象物に応じて好ましい刃数の刈刃が用いられている。   On the other hand, as described above, since there are various objects to be cut, a cutting blade is selected as the cutting blade to be attached to the brush cutter according to the main type of the cutting object. In general, a cutting blade with a large number of blades is used for the cutting under the forest, and a cutting blade with a small number of blades is used for the mowing. This is because small diameter trees and hard grass are difficult to cut by biting small diameter trees between the blades when cutting with a small blade with a long blade pitch. Based on the idea that it is possible to carry out the mowing work efficiently with less load per blade, soft grass like cocoon grass cuts the grass when trying to cut with many blades with a short blade pitch. Since it is difficult to cut away from the blade, it is based on the idea that if the blade is easy to enter between the blades with a small blade having a long pitch, the cutting operation can be performed efficiently. As described above, since the cutting blade for a brush cutter deteriorates the efficiency unless it is properly used according to the application, a cutting blade having a preferable number of blades is generally used according to the object to be cut as described above.

この種の刈刃に関する従来技術として、例えば、作業面にある小石などの障害物によって超硬チップが破損することを防止するために、台金の外周縁に形成する多数の歯形を、通常歯形と、超硬チップの後方に、この超硬チップ先端の回転軌跡よりも外方に突出するガード突起を設けたガード歯形とで構成するようにしたものがある（例えば、特許文献１参照。）。しかし、この特許文献１は、小径木等から柔らかい雑草等まで刈ることができるものではない。
特開２００１−１２８５３０号公報（第２−３頁、図１） As a conventional technique related to this type of cutting blade, for example, in order to prevent the cemented carbide tip from being damaged by obstacles such as pebbles on the work surface, many tooth forms formed on the outer peripheral edge of the base metal are usually tooth forms. And a guard tooth profile provided with a guard projection protruding outward from the rotation trajectory of the tip of the cemented carbide tip (see, for example, Patent Document 1). . However, this patent document 1 cannot cut from small-diameter trees to soft weeds.
JP 2001-128530 A (page 2-3, FIG. 1)

ところで、刈払機によって刈る対象物には前記したように種々の対象物があるが、これらは必ずしもまとまって群生しているとは限らない。例えば、同種の対象物がある程度はまとまった範囲に群生しているとしても、小径木や灌木が多い場所でも雑草は生えており、雑草が多い場所でも小径木が生えている場所もある。しかも、小径木や灌木が多い場所からすすき等の多い場所、雑草のみの場所へと連続的に刈りたい場合もある。また、小径木の多い場所を刈った後、雑草のみの場所を刈り、その後、小径木の多い場所へと連続的に刈りたい場合もある。   By the way, as described above, there are various objects to be cut by the brush cutter, but these are not necessarily clustered together. For example, even if objects of the same kind are clustered to a certain extent, weeds grow even in places where there are many small-diameter trees and shrubs, and there are places where small-diameter trees grow even in places where there are many weeds. Moreover, there is a case where it is desired to continuously cut from a place where there are many small diameter trees and shrubs to a place where there are many plows or a place where only weeds are present. In some cases, after cutting a place with many small-diameter trees, a place with only weeds is cut, and then it is desired to continuously cut to a place with many small-diameter trees.

しかしながら、前記したように、刈刃は、その刈る対象物に応じて好ましい刃数等があるため、前記したように刈る対象物が変化する場合には、例えば、小径木等が多い場所では刃数の多い刈刃を用いて刈払い作業を行い、雑草のみ場所に移る前に刃数の少ない刈刃に取り換えて雑草等の刈払い作業を行い、また小径木等の多い場所に戻る前に刃数の多い刈刃に取り換えてから小径木等の刈払い作業を行う、というような煩雑な作業を行わなければならない場合がある。   However, as described above, since the cutting blade has a preferable number of blades or the like according to the object to be cut, when the object to be cut changes as described above, for example, the blade is used in a place where there are many small diameter trees or the like. Perform cutting work using a large number of cutting blades, replace the cutting blade with a small number of blades before moving to the place where only weeds move, perform cutting work such as weeds, and before returning to a place where there are many small diameter trees etc. In some cases, it is necessary to perform a complicated operation such as cutting a small diameter tree after replacing the cutting blade with a large number of blades.

そして、このように複数回の刈刃の交換を行う場合、その作業に時間と労力を要するので、作業効率を低下させてしまう。その上、刈る場所によっては足場が悪い等の理由でその場で刈刃の交換ができない場合もあり、刈刃の交換ができる場所への移動等にも時間と労力を要する場合もある。そのため、種々の対象物が群生している場所で刈払い作業を行う場合、作業性を大幅に悪化させてしまうことがある。   And when exchanging a cutting blade several times in this way, since the work requires time and labor, work efficiency will be reduced. In addition, depending on the place to cut, the cutting blade may not be exchanged on the spot because the scaffold is bad, and it may take time and effort to move to a place where the cutting blade can be exchanged. For this reason, when the brushing work is performed in a place where various objects are clustered, the workability may be greatly deteriorated.

そこで、本発明は、小径木等から柔らかい雑草等まで刈ることができる刈払機用刈刃を提供することを目的とする。   Then, an object of this invention is to provide the cutting blade for brush cutters which can cut from a small diameter tree etc. to soft weeds.

前記目的を達成するために、本発明は、円盤状の台金の外周縁に複数の刃部を形成し、該刃部を、浅い刃底で、周方向に短いピッチで連続する複数のチップ刃と、該連続する複数のチップ刃の間に位置し、周方向に長いピッチで深い刃底に刃を形成した研磨刃とで構成している。これにより、小径木等は連続する複数のチップ刃で効率良く刈ることができ、雑草等は連続するチップ刃の間に位置する長いピッチの深い刃底に形成された研磨刃に絡めて効率良く刈ることができる。   In order to achieve the above-mentioned object, the present invention forms a plurality of blade portions on the outer peripheral edge of a disk-shaped base metal, and a plurality of chips that are continuous at a short pitch in the circumferential direction with a shallow blade bottom. The blade is composed of a blade and a polishing blade which is located between the plurality of continuous chip blades and has a blade formed on a deep blade bottom at a long pitch in the circumferential direction. As a result, small-diameter trees and the like can be efficiently cut with a plurality of continuous tip blades, and weeds and the like are efficiently entangled with a long-pitch deep blade bottom located between successive tip blades. I can mow.

また、前記連続する複数のチップ刃と、該複数のチップ刃の間に位置する研磨刃とを、台金の外周縁に均等間隔で配置すれば、小径木等の刈払い時の感覚を一定にすることができる。   Further, if the plurality of continuous chip blades and the polishing blade located between the plurality of chip blades are arranged at equal intervals on the outer peripheral edge of the base metal, the feeling at the time of trimming a small diameter tree or the like is constant. Can be.

さらに、前記連続する複数のチップ刃の数に対する研磨刃の数を、３対１から５対１の範囲に設定すれば、連続するチップ刃の間の深い刃底に形成した研磨刃が小径木を刈払う時に噛み込むのを効果的に抑止しつつ、この研磨刃で柔らかい草等を効率良く刈ることができる。   Further, if the number of polishing blades with respect to the number of the plurality of continuous cutting blades is set in a range of 3: 1 to 5: 1, the polishing blade formed on the deep blade bottom between the continuous cutting blades is a small diameter tree. It is possible to efficiently cut soft grass and the like with this polishing blade while effectively inhibiting biting when cutting.

本発明は、以上説明したような手段により、小径木から柔らかい雑草等まで、効率良く刈れる刈刃を提供することが可能となる。   According to the present invention, it is possible to provide a cutting blade that can be efficiently cut from small-diameter trees to soft weeds by the means described above.

以下、本発明の一実施形態を図面に基づいて説明する。図１は、本発明の一実施形態を示す刈払機用刈刃の正面図であり、図２は、図１に示す刈払機用刈刃の一部の刃部を示す拡大斜視図である。   Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a brush cutter for a brush cutter showing an embodiment of the present invention, and FIG. 2 is an enlarged perspective view showing a part of the blade of the cutter blade for a brush cutter shown in FIG.

図１に示すように、刈払機用刈刃１は、円盤状の台金２の外周縁に複数の刃部３が形成されている。そして、この刃部３が、浅い刃底４で周方向に所定の短いピッチｐ１で連続する複数のチップ刃５と、この連続する複数のチップ刃５の間に位置し、周方向に所定の長いピッチｐ２で、深い刃底６に刃７を形成した研磨刃８とで構成されている。図中の矢印は、刈払機用刈刃１の回転方向を示しており、中央の取付穴１０で刈払機に取付けられる。   As shown in FIG. 1, the brush cutter blade 1 has a plurality of blade portions 3 formed on the outer peripheral edge of a disk-shaped base metal 2. The blade portion 3 is positioned between a plurality of chip blades 5 that are continuous at a predetermined short pitch p1 in the circumferential direction with a shallow blade bottom 4, and a plurality of chip blades 5 that are continuous in the circumferential direction. The polishing blade 8 is formed by forming a blade 7 on a deep blade bottom 6 with a long pitch p2. The arrows in the figure indicate the direction of rotation of the brush cutter 1 and are attached to the brush cutter through the central mounting hole 10.

前記チップ刃５は、図では４枚が連続するように設けられている。このチップ刃５の間は浅い刃底４で形成され、回転方向前側にチップ９が埋め込まれている。これらチップ刃５は、短いピッチｐ１で設けられている。そして、この連続する複数のチップ刃５の間に設けられた前記研磨刃８は、深い刃底６に刃７が形成されたものである（図２）。この刃７は、深い刃底６の回転方向後側に形成されており、研磨刃８の回転方向後側に位置するチップ刃５の台金部分にかけて形成されている。この例では、研磨刃８の長いピッチｐ２を、前記チップ刃５の２枚分のピッチｐ１としている。   The chip blades 5 are provided so that four of them are continuous in the figure. A space between the tip blades 5 is formed with a shallow blade bottom 4, and a tip 9 is embedded on the front side in the rotational direction. These tip blades 5 are provided with a short pitch p1. The polishing blade 8 provided between the plurality of continuous chip blades 5 is formed by forming a blade 7 on a deep blade bottom 6 (FIG. 2). The blade 7 is formed on the rear side in the rotational direction of the deep blade bottom 6, and is formed over the base metal portion of the tip blade 5 located on the rear side in the rotational direction of the polishing blade 8. In this example, the long pitch p <b> 2 of the polishing blade 8 is set to the pitch p <b> 1 of the two chip blades 5.

さらに、この例では、これら連続するチップ刃５と研磨刃８とが、台金２の外周縁に等間隔で配置されている。図示する例では、短いピッチｐ１で設けられた４枚のチップ刃５と、このチップ刃５の２枚分の長いピッチｐ２で設けられた研磨刃８とが、台金２の外周縁を１２等分した等間隔で配置されている。このようにチップ刃５と研磨刃８とを等間隔で配置することにより、小径木等を刈るときに長いピッチｐ２の部分が小径木等を通過する周期が一定となって、操作感を一定にすることができる。   Further, in this example, the continuous tip blade 5 and polishing blade 8 are arranged at equal intervals on the outer peripheral edge of the base metal 2. In the example shown in the figure, four chip blades 5 provided with a short pitch p1 and a polishing blade 8 provided with a long pitch p2 corresponding to two of the chip blades 5 serve as the outer peripheral edge of the base metal 2. Arranged at equal intervals. By arranging the tip blade 5 and the polishing blade 8 at equal intervals in this way, the period in which the portion of the long pitch p2 passes through the small-diameter tree, etc. when cutting the small-diameter tree, etc. becomes constant, and the operational feeling is constant. Can be.

また、この実施の形態では、前記したように４枚のチップ刃５と１枚の研磨刃８とによって４対１の数でチップ刃５と研磨刃８とを配置することにより、小径木等は連続する複数のチップ刃５で効率良く刈ることができ、雑草等は深い刃底６の研磨刃８に絡ませて効率良く刈ることができる刈払機用刈刃１を構成している。この連続するチップ刃５と研磨刃８とを設ける数としては、同一刃数の刈払機用刈刃１であれば、連続するチップ刃５を少なくして研磨刃８を多くすると柔らかい雑草等を刈りやすい刈刃となり、連続するチップ刃５を多くして研磨刃８を少なくすると小径木等を刈りやすい刈刃となるが、３対１から５対１であれば同様の作用効果を得ることができる。   In this embodiment, as described above, by arranging the chip blades 5 and the polishing blades 8 in a 4-to-1 number by the four chip blades 5 and the single polishing blade 8, a small diameter tree or the like is provided. Constitutes a cutting blade 1 for a brush cutter that can be efficiently cut by a plurality of continuous tip blades 5 and weeds can be efficiently cut by being entangled with a polishing blade 8 of a deep blade bottom 6. As for the number of the continuous cutting blades 5 and the polishing blades 8, if the number of cutting blades 1 for a brush cutter is the same, the number of continuous cutting blades 5 is reduced and the number of polishing blades 8 is increased. If the number of continuous cutting blades 5 is increased and the number of polishing blades 8 is decreased, a cutting blade that can easily cut small-diameter wood or the like is obtained. Can do.

図３は、図１に示す刈払機用刈刃の使用状態を示す平面図である。図示するように、前記刈払機用刈刃１は、中央の取付穴１０で刈払機に設けられた操作杆１１の先端に取付けられる。この刈払機用刈刃１は、前記したように操作杆１１の内部に設けられた回転軸（図示省略）により、矢印の方向に回転駆動されるように構成されている。   FIG. 3 is a plan view showing a use state of the brush cutter for a brush cutter shown in FIG. As shown in the drawing, the brush cutter blade 1 is attached to the tip of an operating rod 11 provided in the brush cutter through a central attachment hole 10. The brush cutter blade 1 is configured to be rotationally driven in the direction of the arrow by the rotation shaft (not shown) provided inside the operation rod 11 as described above.

このように設けられた刈払機用刈刃１によれば、台金２の外周縁に形成された短いピッチで連続する複数のチップ刃５により、小径木ｔ等に大きく噛み込むことなく、これら小径木ｔを効率良く刈ることができる。また、前記したように連続する複数のチップ刃５の間に設けられた深い刃底６の研磨刃８により、雑草等の柔らかい草ｗはこの深い刃底６に絡ませて研磨刃８で効率良く刈ることができる。このように、短いピッチｐ１で連続する複数のチップ刃５の間に長いピッチｐ２で深い刃底６に形成した研磨刃８を設けることにより、チップ刃５では硬い小径木ｔ等を、研磨刃８では柔らかい雑草ｗ等をそれぞれ分担して刈るようにし、これら小径木と雑草との中間に位置するような硬さの笹やすすき等は、チップ刃５と研磨刃８とによって効率良く刈ることができるようにしている。   According to the brush cutter 1 provided in this way, the plurality of tip blades 5 formed on the outer peripheral edge of the base metal 2 are continuous at a short pitch, and these are not greatly bitten by the small diameter tree t or the like. The small diameter tree t can be cut efficiently. Also, as described above, the soft blade w such as weed is entangled with the deep blade bottom 6 by the polishing blade 8 of the deep blade bottom 6 provided between the plurality of continuous chip blades 5, and the polishing blade 8 efficiently. I can mow. Thus, by providing the polishing blade 8 formed on the deep blade bottom 6 with the long pitch p2 between the plurality of chip blades 5 continuous with the short pitch p1, the chip blade 5 can remove the hard small-diameter tree t or the like. In FIG. 8, soft weeds w, etc. are shared and mowed, and the heels and plows that are located between the small diameter trees and the weeds are mowed efficiently with the tip blade 5 and the polishing blade 8. To be able to.

以上のように、連続する複数のチップ刃５と、この連続する複数のチップ刃５と次の連続する複数のチップ刃５との間に設けられた研磨刃８とを、それぞれ刈る対象物に応じて好ましい配置と個数で設けることにより、１枚の刈払機用刈刃１によって山林下刈や草刈という異なる作業を効率良く行うことができるようにして、１枚の刈払機用刈刃１の用途範囲を広げている。   As described above, the plurality of continuous chip blades 5 and the polishing blade 8 provided between the plurality of continuous chip blades 5 and the next continuous plurality of chip blades 5 are respectively cut objects. Accordingly, by providing a preferable arrangement and number, it is possible to efficiently perform different operations such as forest cutting and mowing with one cutting blade 1 for use in a bush cutter, and the use of one cutting blade 1 for a brush cutter. The range is expanding.

しかも、１枚の刈払機用刈刃１で刈れる用途を広げることにより、作業によっては刈刃の交換時間や移動時間等を大幅に削減することができるので、大幅な作業時間の短縮と労力の軽減を図ることができる。   In addition, by expanding the use that can be cut with a single blade 1 for a brush cutter, it is possible to greatly reduce the time for exchanging and moving the cutting blades depending on the work. Can be reduced.

なお、前記実施形態では、４枚のチップ刃５の間に１枚の研磨刃８を設け、この研磨刃８を台金２の周囲に１２枚設けているが、この研磨刃８の数は前記実施の形態に限定されるものではない。また、前記実施形態では、複数枚のチップ刃５と研磨刃８とを台金２の外周縁に等間隔で配置しているが、この配置も一例であり、取付穴１０を中心とした対向位置に研磨刃８を設けるような構成であってもよく、この実施形態に限定されるものではない。   In the above embodiment, one polishing blade 8 is provided between the four chip blades 5 and 12 polishing blades 8 are provided around the base metal 2. The number of polishing blades 8 is as follows. The present invention is not limited to the above embodiment. Moreover, in the said embodiment, although the several chip blade 5 and the grinding | polishing blade 8 are arrange | positioned at equal intervals on the outer periphery of the base metal 2, this arrangement | positioning is also an example and it opposes centering on the attachment hole 10. The configuration may be such that the polishing blade 8 is provided at a position, and is not limited to this embodiment.

さらに、前述した実施形態は一例を示しており、本発明の要旨を損なわない範囲での種々の変更は可能であり、本発明は前述した実施形態に限定されるものではない。   Furthermore, the above-described embodiment shows an example, and various modifications can be made without departing from the gist of the present invention, and the present invention is not limited to the above-described embodiment.

本発明に係る刈払機用刈刃は、硬い小径木等を含む山林下刈や、すすきや畦草、雑草等の柔らかい草刈を含む刈払い作業を行う刈払機において利用できる。   The brush cutter for a brush cutter according to the present invention can be used in a brush cutter for performing a brush cutting operation including a forest cutting including a hard small-diameter tree and a soft grass cutting such as a plowing grass, a weed and a weed.

本発明の一実施形態を示す刈払機用刈刃の正面図である。It is a front view of the cutting blade for brush cutters showing one embodiment of the present invention. 図１に示す刈払機用刈刃の一部の刃部を示す拡大斜視図である。It is an expansion perspective view which shows a part of blade part of the cutting blade for brush cutters shown in FIG. 図１に示す刈払機用刈刃の使用状態を示す平面図である。It is a top view which shows the use condition of the cutting blade for brush cutters shown in FIG.

符号の説明Explanation of symbols

１…刈払機用刈刃
２…台金
３…刃部
４…浅い刃底
５…チップ刃
６…深い刃底
７…刃
８…研磨刃
９…チップ
１０…取付穴
１１…操作杆
ｔ…小径木
ｗ…草
ｐ１…短いピッチ
ｐ２…長いピッチ

1 ... Mowing blade for brush cutter
2 ... Base metal
3 ... Blade
4 ... Shallow blade bottom
5 ... Tip blade
6 ... Deep blade bottom
7 ... Blade
8 ... Polishing blade
9 ... Chip 10 ... Mounting hole 11 ... Operation rod
t ... small diameter tree
w ... grass p1 ... short pitch p2 ... long pitch

Claims (3)

円盤状の台金の外周縁に複数の刃部を形成し、
該刃部を、浅い刃底で、周方向に短いピッチで連続する複数のチップ刃と、
該連続する複数のチップ刃の間に位置し、周方向に長いピッチで深い刃底に刃を形成した研磨刃とで構成した刈払機用刈刃。 A plurality of blade portions are formed on the outer peripheral edge of the disk-shaped base metal,
A plurality of insert blades that are continuous at a short pitch in the circumferential direction with a shallow blade bottom;
A cutting blade for a brush cutter comprising a polishing blade positioned between the plurality of continuous tip blades and having a blade formed on a deep blade bottom at a long pitch in the circumferential direction. 前記連続する複数のチップ刃と、該複数のチップ刃の間に位置する研磨刃とを、台金の外周縁に等間隔で配置したことを特徴とする請求項１記載の刈払機用刈刃。   2. The cutting blade for a brush cutter according to claim 1, wherein the plurality of continuous cutting blades and the polishing blade positioned between the plurality of cutting blades are arranged at equal intervals on the outer peripheral edge of the base metal. . 前記連続するチップ刃の数に対する研磨刃の数を、３対１から５対１の範囲に設定したことを特徴とする請求項１又は請求項２記載の刈払機用刈刃。

3. The cutting blade for a brush cutter according to claim 1, wherein the number of polishing blades with respect to the number of continuous chip blades is set in a range of 3: 1 to 5: 1.

JP2005278029A 2005-09-26 2005-09-26 Cutting blade for bush cutter Pending JP2007082503A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010099027A (en) * 2008-10-24 2010-05-06 Kubota Corp Cutting blade of stalk shredding machine
KR20180117406A (en) * 2017-04-19 2018-10-29 정태근 Double-sided cutter for lawn trimmer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5464726U (en) * 1977-10-17 1979-05-08
JPS5492928U (en) * 1977-11-10 1979-06-30
JPS59186028U (en) * 1983-05-30 1984-12-10 三宅　広志 Rotary blade for brush cutter
JPS6057933U (en) * 1983-09-29 1985-04-23 津村鋼業株式会社 rotating blade

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5464726U (en) * 1977-10-17 1979-05-08
JPS5492928U (en) * 1977-11-10 1979-06-30
JPS59186028U (en) * 1983-05-30 1984-12-10 三宅　広志 Rotary blade for brush cutter
JPS6057933U (en) * 1983-09-29 1985-04-23 津村鋼業株式会社 rotating blade

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010099027A (en) * 2008-10-24 2010-05-06 Kubota Corp Cutting blade of stalk shredding machine
KR20180117406A (en) * 2017-04-19 2018-10-29 정태근 Double-sided cutter for lawn trimmer
KR101998830B1 (en) * 2017-04-19 2019-07-10 정태근 Double-sided cutter for lawn trimmer

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