JP2012055230A - Cutting blade of bush cutter - Google Patents

Cutting blade of bush cutter Download PDF

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JP2012055230A
JP2012055230A JP2010201794A JP2010201794A JP2012055230A JP 2012055230 A JP2012055230 A JP 2012055230A JP 2010201794 A JP2010201794 A JP 2010201794A JP 2010201794 A JP2010201794 A JP 2010201794A JP 2012055230 A JP2012055230 A JP 2012055230A
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cutting blade
ring
annular body
fixed
blade
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JP4947478B2 (en
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Norio Wanami
憲雄 和波
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Abstract

PROBLEM TO BE SOLVED: To solve a problem that a chip is damaged and scattered when hit by an obstacle such as a stone in a bush-cutting operation, in consideration of that a cutting blade of a bush cutter obtained by forming a ring-shaped grounding body that is made of a metal disc having a diameter a little smaller than that of a bush-cutting blade arranged close to a peripheral part to form a ring-shaped protruding ridge as a countermeasure for the chip damage and forming a cutting blade peripheral protecting surface of horizontal plane in close contact with the lower surface of the cutting blade peripheral part at the peripheral edge side of the ring-shaped grounding body is proposed, however, there is still a risk of causing damage and scattering of chip when the chip is hit by an obstacle such as a stone, in a bush-cutting operation.SOLUTION: The use of the cutting blade of bush cutter in which a ring-shaped body of prescribed width composed of a ring-shaped protruding ridge having an outer diameter a little smaller than that of the cutting blade is fixed on at least one surface among the lower surface and upper surface of the cutting blade prevents the cutting blade from being damaged by distributed absorption of a shock of an obstacle such as a stone, by the ring-shaped body even when the cutting blade is hit by the obstacle. Further, since the cutting blade is fixed to the ring-shaped body, even when damaged, scattering of the cutting blade is prevented.

Description

本発明は、刈払機の刈払刃に関するものである。   The present invention relates to a brush cutter blade of a brush cutter.

刈払機の刈払刃として、刈刃周縁部に刈刃切欠を形成するとともに、チップを溶接したチップソーが知られている。該チップソーは、刈払作業時に石などの障害物が当たるとチップが破損して飛散することがあり、刈払作業の安全確保の点で問題点がある。   As a brush cutter of a brush cutter, there is known a tip saw in which a cutting blade notch is formed in a peripheral portion of a cutting blade and a tip is welded. The tip saw has a problem in terms of ensuring the safety of the mowing operation because the tip may be broken and scattered when an obstacle such as a stone hits the mowing operation.

この対策として刈払刃よりもやや小さい径の金属円板で製作して刈払刃の周縁部寄りに環状凸条により形成した環状接地体を形成し、該環状接地体の外周縁側に刈刃周縁部の下面に密接する水平面からなる刈刃周縁保護面が形成された刈払機の刈取刃体が特開２００１−２８９２３号公報にて提案されてはいるが、このものは、環状接地体の外周縁側に刈刃周縁部の下面に密接する水平面の刈刃周縁保護面が形成されただけのものであり、固着されていないので、刈払刃の強度を上げる工夫は実質的にはなされておらず、刈払作業時に石などの障害物が当たるとチップが破損して飛散する怖れが従来と同様にあるものであった。また、刈刃と接地体との間に草等が入り込むとその都度、エンジンを停止して草等を除去しなければならないものであった。   As a countermeasure, a ring-shaped grounding body formed by an annular ridge is formed near the peripheral edge of the brush cutting blade, and a cutting blade is formed on the outer peripheral edge of the circular grounding body. Japanese Patent Application Laid-Open No. 2001-28923 proposes a cutting blade body of a brush cutter in which a cutting blade peripheral protection surface formed of a horizontal surface closely contacting a lower surface of a peripheral portion is formed. A horizontal cutting edge protection surface that is in close contact with the lower surface of the peripheral edge of the cutting blade is formed on the outer peripheral edge and is not fixed. In the past, there was a fear that chips would be broken and scattered when hit by an obstacle such as a stone during cutting. Further, every time grass or the like enters between the cutting blade and the grounding body, the engine must be stopped to remove the grass or the like.

特開２００１−２８９２３号公報JP 2001-28923 A

本発明が解決しようとする問題点は、刈払作業時に石などの障害物がチップに当たるとチップが破損して飛散することにある。   The problem to be solved by the present invention is that when an obstacle such as a stone hits the chip during the cutting operation, the chip is broken and scattered.

本発明は、刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着したことを特徴とする。   The present invention is characterized in that an annular body having a predetermined width composed of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutting blade is fixed to at least one of the lower surface and the upper surface of the cutting blade.

本発明の刈払機の刈払刃は、刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着したことを特徴とするものであるから、刈刃に石などの障害物が当たってもその衝撃を環状体で分散吸収して刈刃が損傷するのを防止することができるという利点がある。更に、例え、刈刃が破損しても刈刃は環状体に固着されているので、刈刃が飛散するのを防止できるという効果がある。   In the brush cutter of the brush cutter of the present invention, an annular body having a predetermined width composed of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutter blade is fixed to at least one surface of the lower or upper surface of the cutting blade. Since it is a characteristic, there is an advantage that even when an obstacle such as a stone hits the cutting blade, the impact can be dispersed and absorbed by the annular body to prevent the cutting blade from being damaged. Furthermore, even if the cutting blade is broken, the cutting blade is fixed to the annular body, so that the cutting blade can be prevented from scattering.

図１は本発明の刈込刃を設けた刈込機の要部断面図である。FIG. 1 is a sectional view of an essential part of a trimming machine provided with a trimming blade of the present invention. 図２は同上の刈込刃の断面図である。FIG. 2 is a cross-sectional view of the above cutting blade. 図３は同上の刈込刃の平面図である。FIG. 3 is a plan view of the above cutting blade. 図４は同上の刈込刃に固着する環状体の平面図である。FIG. 4 is a plan view of an annular body fixed to the cutting blade. 図５は同上の刈込刃の他の実施例の平面図である。FIG. 5 is a plan view of another embodiment of the above cutting blade. 図６は同上の刈込刃の他の実施例の側面図である。FIG. 6 is a side view of another embodiment of the above cutting blade.

以下、本発明の実施例の図示例とともに説明する。 Hereinafter, it will be described together with illustrated examples of embodiments of the present invention.

図１は、本発明を実施した刈払機Kの刈払刃１を示し、刈刃２の下面及び上面の両面には刈刃２下面に刈払刃１の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着している。環状体３は、刈刃２の外径よりもやや小さい外径であり、実施例では１センチメートル小さくしているが、できる限り大きくして刈刃２の外周縁部に形成された刈刃切欠４に近付けて刈刃２の損傷を防止するのが望ましい。尚、環状体３は刈刃切欠４の周囲に達するものでも構わない。環状体３の材質が合成樹脂やゴム質材の場合は、接着剤により環状体３の少なくとも全端縁が刈刃２に固着され、環状体２の材質が金属の場合は、溶接により環状体３の少なくとも全端縁が刈刃２に固着されている。環状体３の材質が合成樹脂やゴム質材のものは、接着剤は、シアノアクリレート系モノマーを主成分とする瞬間接着剤（例えば、高圧ガス工業(株)のシアノン（登録商標））が望ましい。   FIG. 1 shows a brush blade 1 of a brush cutter K embodying the present invention. The lower surface and upper surface of the blade 2 have an outer diameter slightly smaller than the outer diameter of the brush blade 1 on the lower surface of the blade 2. An annular body 3 having a predetermined width made of an annular ridge is fixed. The annular body 3 has an outer diameter that is slightly smaller than the outer diameter of the cutting blade 2 and is 1 centimeter smaller in the embodiment, but is made as large as possible and formed on the outer peripheral edge of the cutting blade 2. It is desirable to prevent the cutting blade 2 from being damaged close to the notch 4. The annular body 3 may reach the periphery of the cutting blade notch 4. When the material of the annular body 3 is a synthetic resin or a rubber material, at least all the edges of the annular body 3 are fixed to the cutting blade 2 with an adhesive, and when the material of the annular body 2 is a metal, the annular body 3 is welded. At least all the edges of 3 are fixed to the cutting blade 2. When the material of the annular body 3 is a synthetic resin or rubber material, the adhesive is preferably an instantaneous adhesive mainly composed of a cyanoacrylate monomer (for example, Cyanone (registered trademark) of High Pressure Gas Industry Co., Ltd.). .

環状体３は、厚みを５ミリメートルに設定しているので、草を確実に短く刈れるようになっている。実施例では５ミリメートルに設定したが、多少厚くなっても、薄くなっても構わない。 Since the annular body 3 is set to have a thickness of 5 millimeters, the grass can be surely cut short. In the embodiment, it is set to 5 millimeters, but it may be a little thicker or thinner.

環状体３は、断面形状を円弧形状にしているが、半円形、半楕円形に形成して曲線形状にしても構わないし、頂点を平面とし外周側斜面、内周側斜面からなる断面山形としても構わない。 The annular body 3 has an arc shape in cross section, but may be formed in a semicircular shape or a semi-elliptical shape so as to have a curved shape. It doesn't matter.

刈刃２は、外周縁部に刈刃切欠４が形成され、チップ５を溶着したチップ刈刃６が形成されている。 The cutting blade 2 has a cutting blade notch 4 formed at the outer peripheral edge portion, and a chip cutting blade 6 to which a chip 5 is welded.

刈刃２が金属で出来ているために刈込機は重たく作業に適さないものであり、軽量化のために、多数の穴７が開けられている。 Since the cutting blade 2 is made of metal, the trimming machine is heavy and not suitable for work, and a large number of holes 7 are opened for weight reduction.

環状体３の材質が塩化ビニールのような合成樹脂やゴム質材のものは、弾性がありチップ刈刃６に加わった衝撃力を吸収できるので、チップ刈刃６の損傷Sを更に防止できる。   Since the material of the annular body 3 is a synthetic resin such as vinyl chloride or a rubber material, it is elastic and can absorb the impact force applied to the chip cutting blade 6, so that the damage S of the chip cutting blade 6 can be further prevented.

刈刃２下面に刈払刃１の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着しているものは、接地面積が少なく、環状体３を地面等にスムーズに摺接させることができ、操行性が良い。また、腰への負担が軽く作業が容易である。 In the case where an annular body 3 having a predetermined width made of an annular ridge having an outer diameter slightly smaller than the outer diameter of the cutting blade 1 is fixed to the lower surface of the cutting blade 2, the ground contact area is small, and the annular body 3 is attached to the ground or the like. Smooth sliding contact and good maneuverability. In addition, the burden on the waist is light and the work is easy.

刈払刃１は、先端駆動軸８にワッシャ９を介してねじ１０で連結されている。先端駆動軸８は、駆動軸（図示せず）にベベルギア（図示せず）を介して連結されている。 The brush cutting blade 1 is connected to the tip drive shaft 8 with a screw 10 via a washer 9. The tip drive shaft 8 is connected to a drive shaft (not shown) via a bevel gear (not shown).

刈刃２の下面及び上面の両面には刈払刃１の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着しているが、刈刃２の下面にのみ刈払刃１の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着しても構わない。環状体３は、同じ材質、同じ大きさのものを使用しているが、異なっていても構わない。刈刃２の下面及び上面の両面に環状体３を固着する実施例として、溶接や接着について説明したが、刈刃２に環状体３を同時成形により固着しても構わない。この場合、刈刃２に多数の貫通口を形成し、刈刃２を固定した金型内に樹脂を充填するだけで簡単に精度良く、安定した固着性能を保有した状態で環状体３を固着することができる。この場合、刈刃２への環状体３の固着強度を上げる工夫として刈刃２に小さな貫通口を多数形成して個々のチップ刈刃６を環状体３に固着するようにすることや、表面に小さな凹凸を形成するなど適宜実施すれば良い。環状体３は刈刃切欠４の周囲に達するものでも構わない。環状体３の摩耗を防止する工夫として環状体３の表面に金属材を設けることも有効であり、同時成形により固着しても構わない。 An annular body 3 having a predetermined width made of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutting blade 1 is fixed to both the lower surface and the upper surface of the cutting blade 2, but only on the lower surface of the cutting blade 2. An annular body 3 having a predetermined width made of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutting blade 1 may be fixed. Although the same material and the same magnitude | size are used for the annular body 3, you may differ. As an example of fixing the annular body 3 to both the lower surface and the upper surface of the cutting blade 2, welding and adhesion have been described. However, the annular body 3 may be fixed to the cutting blade 2 by simultaneous molding. In this case, a large number of through-holes are formed in the cutting blade 2, and the annular body 3 is fixed in a state where it is simply and accurately filled with a resin in a mold in which the cutting blade 2 is fixed, while maintaining stable fixing performance. can do. In this case, as a device for increasing the fixing strength of the annular body 3 to the cutting blade 2, a large number of small through holes are formed in the cutting blade 2 so that the individual chip cutting blades 6 are fixed to the annular body 3, For example, small irregularities may be formed on the surface. The annular body 3 may reach the periphery of the cutting blade notch 4. It is also effective to provide a metal material on the surface of the annular body 3 as a device for preventing the abrasion of the annular body 3, and it may be fixed by simultaneous molding.

図５及び図６は、本発明の他の実施形態の刈払機Kの刈払刃１を示し、刈刃２の上面には刈刃２の径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着している。刈刃２の下面には、作業時に地面に摺接される円状の接地体１１をプレスにより複数個同心円上に点在して設けて接地体１１の摩耗防止と刈刃２の強度アップを図っている。尚、接地体１１を合成樹脂で構成する場合は、刈刃２の下面に接地体１１を固着する方法として、刈刃２に接地体１１を同時成形により固着しても構わない。この場合、刈刃２に同心円上に複数の貫通口（図示せず）を形成し、刈刃２を固定した金型内に樹脂を充填するだけで刈刃２の下面には接地体１１を固着することができる。尚、環状体３は刈刃切欠４の周囲に達するものでも構わない。実施例では、円状の接地体１１をプレスにより複数個同心円上に点在して設けたが、プレスにより接地体１１を環状に形成しても構わない。   5 and 6 show a cutting blade 1 of a brush cutter K according to another embodiment of the present invention, and an upper surface of the cutting blade 2 is formed by an annular ridge having an outer diameter slightly smaller than the diameter of the cutting blade 2. An annular body 3 having a predetermined width is fixed. On the lower surface of the cutting blade 2, a plurality of circular grounding bodies 11 that are slidably contacted with the ground during work are provided on a concentric circle by pressing to prevent wear of the grounding body 11 and increase the strength of the cutting blade 2. I am trying. When the grounding body 11 is made of synthetic resin, the grounding body 11 may be fixed to the cutting blade 2 by simultaneous molding as a method of fixing the grounding body 11 to the lower surface of the cutting blade 2. In this case, a plurality of through holes (not shown) are formed concentrically on the cutting blade 2, and a grounding body 11 is attached to the lower surface of the cutting blade 2 simply by filling a mold in which the cutting blade 2 is fixed with resin. It can be fixed. The annular body 3 may reach the periphery of the cutting blade notch 4. In the embodiment, a plurality of circular grounding bodies 11 are provided on a concentric circle by pressing, but the grounding bodies 11 may be formed in an annular shape by pressing.

本発明の刈払刃は、手に持って草刈りする刈払機以外に、人が乗用する大形の刈払機にも適用できる。 The brush cutter of the present invention can be applied to a large brush cutter that a person rides in addition to a brush cutter that is held by hand and mowing.

１ 刈払刃
２ 刈刃
３ 環状体 1 Cutting blade 2 Cutting blade 3 Ring

図６は同上の刈込刃の他の実施例の断面図である。
図７は同上の刈込刃の他の実施例の断面図である。 FIG. 6 is a cross-sectional view of another embodiment of the above cutting blade.
FIG. 7 is a cross-sectional view of another embodiment of the above cutting blade.

図５及び図６は、本発明の他の実施形態の刈払機Kの刈払刃１を示し、刈刃２の上面には刈刃２の径よりもやや小さい外径の環状凸条からなる所定幅の環状体３を固着している。刈刃２の下面には、作業時に地面に摺接される接地体１１をプレスにより複数個同心円上に点在して設けて接地体１１の摩耗防止と刈刃２の強度アップを図っている。尚、接地体１１を合成樹脂で構成する場合は、刈刃２の下面に接地体１１を固着する方法として、刈刃２に接地体１１を同時成形により固着しても構わない。この場合、刈刃２に同心円上に複数の貫通口（図示せず）を形成し、刈刃２を固定した金型内に樹脂を充填するだけで刈刃２の下面には接地体１１を固着することができる。尚、環状体３は刈刃切欠４の周囲に達するものでも構わない。実施例では、円状の接地体１１をプレスにより複数個同心円上に点在して設けたが、図７に示すように、プレスにより接地体１１を環状に形成しても構わない。 5 and 6 show a cutting blade 1 of a brush cutter K according to another embodiment of the present invention, and an upper surface of the cutting blade 2 is formed by an annular ridge having an outer diameter slightly smaller than the diameter of the cutting blade 2. An annular body 3 having a predetermined width is fixed. On the lower surface of the cutting blade 2, a plurality of grounding bodies 11 that are in sliding contact with the ground during work are provided on a concentric circle by pressing to prevent wear of the grounding body 11 and increase the strength of the cutting blade 2. . When the grounding body 11 is made of synthetic resin, the grounding body 11 may be fixed to the cutting blade 2 by simultaneous molding as a method of fixing the grounding body 11 to the lower surface of the cutting blade 2. In this case, a plurality of through holes (not shown) are formed concentrically on the cutting blade 2, and a grounding body 11 is attached to the lower surface of the cutting blade 2 simply by filling a mold in which the cutting blade 2 is fixed with resin. It can be fixed. The annular body 3 may reach the periphery of the cutting blade notch 4. In the embodiment, a plurality of circular grounding bodies 11 are provided on the concentric circles by pressing, but the grounding bodies 11 may be formed in an annular shape by pressing as shown in FIG .

図１は本発明の刈込刃を設けた刈込機の要部断面図である。FIG. 1 is a sectional view of an essential part of a trimming machine provided with a trimming blade of the present invention. 図２は同上の刈込刃の断面図である。FIG. 2 is a cross-sectional view of the above cutting blade. 図３は同上の刈込刃の平面図である。FIG. 3 is a plan view of the above cutting blade. 図４は同上の刈込刃に固着する環状体の平面図である。FIG. 4 is a plan view of an annular body fixed to the cutting blade. 図５は同上の刈込刃の他の実施例の平面図である。FIG. 5 is a plan view of another embodiment of the above cutting blade. 図６は同上の刈込刃の他の実施例の断面図である。FIG. 6 is a cross-sectional view of another embodiment of the above cutting blade. 図７は同上の刈込刃の他の実施例の断面図である。FIG. 7 is a cross-sectional view of another embodiment of the above cutting blade.

本発明の刈払機の刈払刃は、刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着した刈払機の刈払刃であって、環状体は弾性を有する材質でできていることを特徴とする。 Mowing blade of the bush cutter of the present invention, a brush cutter which is fixed an annular member of a predetermined width formed of annular convex slightly smaller outer diameter than the outer diameter of the mowing blade on at least one surface of the cutting blade lower surface or upper surface The cutting blade is characterized in that the annular body is made of an elastic material .

本発明の刈払機の刈払刃は、刈刃下面又は上面の少なくとも片方の面に刈払
刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着した刈払機の刈払刃であって、環状体は弾性を有する材質でできていることを特徴とするものであるから、刈刃に石などの障害物が当たってもその衝撃を環状体で分散吸収して刈刃が損傷するのを防止することができるという利点がある。更に、例え、刈刃が破損しても刈刃は環状体に固着されているので、刈刃が飛散するのを防止できるという効果があり、更に、弾性を有する材質でできた環状体でチップ刈刃に加わった衝撃力を吸収できるので、チップ刈刃の損傷を更に防止できるという効果がある。 The brush cutter of the brush cutter of the present invention has a brush cutter on at least one of the lower surface and the upper surface of the cutter blade.
A brush cutter blade of a brush cutter to which an annular body having a predetermined width composed of an annular ridge having an outer diameter slightly smaller than the outer diameter of the blade is fixed , wherein the annular body is made of an elastic material. Therefore, even when an obstacle such as a stone hits the cutting blade, there is an advantage that the cutting blade can be dispersed and absorbed by the annular body to prevent the cutting blade from being damaged. Furthermore, even if the cutting blade is broken, the cutting blade is fixed to the annular body, so that the cutting blade can be prevented from scattering , and the tip is made of an annular body made of an elastic material. Since the impact force applied to the cutting blade can be absorbed, the chip cutting blade can be further prevented from being damaged .

本発明の刈払機の刈払刃は、刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着した刈払機の刈払刃であって、環状体は弾性を有する材質でできている刈払機の刈払刃であり、環状体は刈刃の外周縁部に形成された刈刃切刃の周囲に達することを特徴とする。
The brush cutter of the brush cutter of the present invention is a brush cutter in which an annular body having a predetermined width composed of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutter blade is fixed to at least one surface of the lower or upper surface of the cutter blade. The annular body is a brush cutter blade made of an elastic material , and the annular body reaches the periphery of the cutting blade cutting edge formed on the outer peripheral edge of the cutting blade. It is characterized by.

本発明の刈払機の刈払刃は、刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着した刈払機の刈払刃であって、環状体は弾性を有する材質でできている刈払機の刈払刃であり、環状体は刈刃の外周縁部に形成された刈刃切刃の周囲に達することを特徴とするものであるから、刈刃に石などの障害物が当たってもその衝撃を環状体で分散吸収して刈刃が損傷するのを防止することができるという利点がある。更に、例え、刈刃が破損しても刈刃は環状体に固着されているので、刈刃が飛散するのを防止できるという効果があり、更に、弾性を有する材質でできた環状体でチップ刈刃に加わった衝撃力を吸収できるので、チップ刈刃の損傷を更に防止できるという効果がある。 The brush cutter of the brush cutter of the present invention is a brush cutter in which an annular body having a predetermined width composed of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutter blade is fixed to at least one surface of the lower or upper surface of the cutter blade. The annular body is a brush cutter blade made of an elastic material , and the annular body reaches the periphery of the cutting blade cutting edge formed on the outer peripheral edge of the cutting blade. Therefore, even if an obstacle such as a stone hits the cutting blade, the impact can be dispersed and absorbed by the annular body to prevent the cutting blade from being damaged. Furthermore, even if the cutting blade is broken, the cutting blade is fixed to the annular body, so that the cutting blade can be prevented from scattering, and the tip is made of an annular body made of an elastic material. Since the impact force applied to the cutting blade can be absorbed, the chip cutting blade can be further prevented from being damaged.

Claims (2)

刈刃下面又は上面の少なくとも片方の面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着したことを特徴とする刈払機の刈払刃。   A brush cutter for a brush cutter, characterized in that an annular body having a predetermined width made of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutter blade is fixed to at least one of the lower and upper surfaces of the cutter blade. 刈刃の下面及び上面の両面に刈払刃の外径よりもやや小さい外径の環状凸条からなる所定幅の環状体を固着したことを特徴とする請求項１記載の刈払機の刈払刃。 2. A brush cutter for a brush cutter according to claim 1, wherein an annular body having a predetermined width made of an annular ridge having an outer diameter slightly smaller than the outer diameter of the brush cutter blade is fixed to both the lower surface and the upper surface of the cutter blade. blade.
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JP2014000050A (en) * 2012-06-20 2014-01-09 Heart Full Japan:Kk Entanglement prevention sheet and chip saw for bush cutter to which the entanglement prevention sheet is attached
JP2016140316A (en) * 2015-02-03 2016-08-08 伊藤レーシングサービス株式会社 Grass mower blade and grass mower
JP2016182053A (en) * 2015-03-25 2016-10-20 株式会社マキタ Bush cutter
JP2018074921A (en) * 2016-11-08 2018-05-17 有限会社高芝ギムネ製作所 Rotary blade for bush cutter
JP2023504950A (en) * 2020-11-12 2023-02-08 江▲蘇▼▲匯▼▲鴻▼畜▲産▼嘉瑞机▲電▼有限公司 Mowing blades and applications

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JP2014000050A (en) * 2012-06-20 2014-01-09 Heart Full Japan:Kk Entanglement prevention sheet and chip saw for bush cutter to which the entanglement prevention sheet is attached
JP2016140316A (en) * 2015-02-03 2016-08-08 伊藤レーシングサービス株式会社 Grass mower blade and grass mower
JP2016182053A (en) * 2015-03-25 2016-10-20 株式会社マキタ Bush cutter
JP2018074921A (en) * 2016-11-08 2018-05-17 有限会社高芝ギムネ製作所 Rotary blade for bush cutter
JP2023504950A (en) * 2020-11-12 2023-02-08 江▲蘇▼▲匯▼▲鴻▼畜▲産▼嘉瑞机▲電▼有限公司 Mowing blades and applications
JP7453250B2 (en) 2020-11-12 2024-03-19 江▲蘇▼▲匯▼▲鴻▼畜▲産▼嘉瑞机▲電▼有限公司 Lawn mowing blades and applications

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