JP2010041945A - Scattering prevention device for mowing machine, and mowing machine - Google Patents

Scattering prevention device for mowing machine, and mowing machine Download PDF

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JP2010041945A
JP2010041945A JP2008206974A JP2008206974A JP2010041945A JP 2010041945 A JP2010041945 A JP 2010041945A JP 2008206974 A JP2008206974 A JP 2008206974A JP 2008206974 A JP2008206974 A JP 2008206974A JP 2010041945 A JP2010041945 A JP 2010041945A
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scattering
rotary blade
grass
mower
shaft
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JP4209934B1 (en
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Tsugio Asaishi
次男 浅石
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Abstract

<P>PROBLEM TO BE SOLVED: To prevent scattering of cut grass cut by a rotary blade to enhance a collection rate of grass and improve workability. <P>SOLUTION: A scattering prevention device S for mowing machines, mounted to a mowing machine K equipped with a circular rotary blade 2 for cutting grass installed to the top end of a shaft 1 is provided. The device is equipped with: a scattering prevention member 10 which is formed to be cyclic by surrounding the shaft 1 with a flexible belt-like member 10a and bringing the lower edge 11 to be slidably contactable with the upper face 3 of the rotary blade 2 and the outer side face 12 to be formed as a grass receiving face 12a for receiving cut grass cut by the rotary cutter 2; a rod 20 which supports a part 13 of the scattering prevention member 10 on the tip 21 to be swingable around the rotary shaft 22 as a center in a direction in which the lower edge 11 of the scattering prevention member 10 approaches to and parts from the upper face 3 of the rotary blade 2; a cylindrical body 30 which holds the rod 20 to be freely slidable in the direction in which the lower edge 11 of the scattering prevention member 10 approaches to or parts from the upper face 3 of the rotary blade 2; and a fixing member 40 which fixes the cylindrical body 30 to the shaft 1. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、草刈機に取り付けられ草刈機で切断された切断草の飛散を防止する草刈機用飛散防止具及びこの草刈機用飛散防止具を備えた草刈機に関する。   TECHNICAL FIELD The present invention relates to a scattering preventer for a mower that prevents scattering of cut grass that is attached to the mower and cut by the mower, and to a mower equipped with the anti-scattering tool for the mower.

一般に、草刈機は、シャフトの先端に円板状の回転刃が設けられており、シャフトに設けられたエンジンによって回転刃が回転させられる。
回転刃によって切断された切断草は飛散されるので集草率が低く、草刈り後に切断草を集草させなければならず、それだけ、作業が煩雑になっていた。 Generally, in a mower, a disc-shaped rotary blade is provided at the tip of a shaft, and the rotary blade is rotated by an engine provided on the shaft.
Since the cut grass cut by the rotary blade is scattered, the grass collection rate is low, and the cut grass has to be collected after mowing, so that the work is complicated.

そこで、従来においては、草刈機に、切断草の飛散を防止する草刈機用飛散防止具を取り付けたものが知られている（例えば、特許第３５６９５０８号公報に掲載）。図１１に示すように、この草刈機用飛散防止具Ｓａは、シャフト１の先端に円板状の回転刃２が設けられる草刈機Ｋａの回転刃２の上方において横架する金属製の棒状体１００を備え、この棒状体１００に異なる方向に突出する棒状又は粒状の小突起からなる草かけ部１０１を形成してなる。
草刈り作業を行なう際は、この草刈機用飛散防止具Ｓａを、棒状体１００が草刈機Ｋａの回転刃２の上方に位置するように取付金具１０２を介してシャフト１に取り付けた状態で行なう。草刈機Ｋａの回転刃２を回転駆動させて草を切断していくと、回転刃２によって切断された切断草は、回転刃２の回転方向に遠心力を与えられて飛散しようとするが、飛散しようとした切断草は、棒状体１００に当たって下に落ちて溜まるようになり、これにより、集草率を向上させている。また、草刈り後に切断草を集草させる手間を省くことができるので、それだけ、作業性を向上させることができる。このとき、棒状体１００から突出した草かけ部１０１に切断草が引っ掛かるので、この点でも、集草率を向上させている。 In view of this, conventionally, there is known a mowing machine provided with an anti-scattering tool for a mowing machine that prevents scattering of cut grass (for example, published in Japanese Patent No. 3569508). As shown in FIG. 11, the grass cutter anti-scattering tool Sa is a metal rod-like body that lies horizontally above the rotary blade 2 of the mower Ka in which a disc-shaped rotary blade 2 is provided at the tip of the shaft 1. 100, and the rod-like body 100 is formed with a grass portion 101 made of rod-like or granular small protrusions protruding in different directions.
When the mowing operation is performed, the mower scattering prevention tool Sa is attached to the shaft 1 via the mounting bracket 102 so that the rod-like body 100 is positioned above the rotary blade 2 of the mower Ka. When the rotary blade 2 of the mower Ka is driven to rotate and the grass is cut, the cut grass cut by the rotary blade 2 is scattered by being given centrifugal force in the rotational direction of the rotary blade 2. The cut grass to be scattered hits the rod-like body 100 and falls down and accumulates, thereby improving the grass collection rate. Moreover, since it is possible to save the trouble of collecting the cut grass after mowing, the workability can be improved accordingly. At this time, since the cut grass is caught on the grass hanging portion 101 protruding from the rod-like body 100, the grass collection rate is also improved in this respect.

特許第３５６９５０８号公報Japanese Patent No. 3569508

しかしながら、この従来の草刈機用飛散防止具Ｓａにおいては、棒状体１００が金属で構成されており、棒状体１００と回転刃２とが接触すると回転刃２の回転を妨げるので、これを防止するために、棒状体１００を回転刃２の上面から一定距離離間させて上方に設け、棒状体１００と回転刃２とが接触しないようにしているため、棒状体１００と回転刃２との隙間から切断草が侵入し、そのため、切断草の飛散防止が確実に行なわれず、それだけ、集草率の向上が十分でなく、作業性の向上が十分でないという問題があった。また、草刈りを行なっていくと、棒状体１００と回転刃２との隙間に徐々に切断草が入り込んで溜まっていくようになるので、切断草が棒状体１００と回転刃２との隙間に詰まって、回転刃２の回転を妨げてしまうことがあり、この場合、回転刃２に過負荷が掛かって、草刈機Ｋａの故障の原因となるため、草刈り作業を中断して棒状体１００と回転刃２との隙間に詰まった切断草を排除しなければならず、それだけ、作業が煩雑になるという問題もあった。   However, in this conventional grass cutter anti-scattering tool Sa, the rod-shaped body 100 is made of metal, and when the rod-shaped body 100 and the rotary blade 2 come into contact with each other, the rotation of the rotary blade 2 is hindered. For this reason, the rod-shaped body 100 is provided at a certain distance from the upper surface of the rotary blade 2 so as to avoid contact between the rod-shaped body 100 and the rotary blade 2. There was a problem that the cut grass invaded and therefore the cut grass was not surely prevented from scattering, and the grass collection rate was not sufficiently improved, and the workability was not sufficiently improved. Further, as the mowing is performed, the cut grass gradually enters and accumulates in the gap between the rod-shaped body 100 and the rotary blade 2, so that the cut grass is clogged in the gap between the rod-shaped body 100 and the rotary blade 2. The rotation of the rotary blade 2 may be obstructed. In this case, the rotary blade 2 is overloaded and may cause a malfunction of the mower Ka. Therefore, the mowing operation is interrupted and the rod 100 is rotated. There was a problem that the cut grass clogged in the gap with the blade 2 had to be eliminated, and the work was complicated accordingly.

本発明は、このような問題点に鑑みてなされたもので、回転刃に過負荷が掛からないようにして回転刃によって切断された切断草の飛散を確実に防止し、集草率を向上させて作業性の向上を図った草刈機用飛散防止具及び草刈機を提供することを目的とする。   The present invention has been made in view of such problems, and reliably prevents scattering of the cut grass cut by the rotary blade so as not to overload the rotary blade, thereby improving the grass collection rate. An object of the present invention is to provide an anti-scattering tool for a mower and a mower that improve workability.

このような目的を達成するため、本発明の草刈機用飛散防止具は、シャフトの先端に回転可能に設けられ草を切断する円板状の回転刃を備えた草刈機に取り付けられる草刈機用飛散防止具において、可撓性の帯状部材で上記シャフトの先端を囲繞して環状に形成され下縁が上記回転刃の上面に摺接可能且つ外側面が上記回転刃で切断された切断草を受ける草受け面として形成される飛散防止部材と、先端部に上記飛散防止部材の一部を該飛散防止部材の下縁が上記回転刃の上面に対して近接離間する方向に回動軸を中心に回動可能に支持するロッドと、該ロッドを上記飛散防止部材の下縁が上記回転刃の上面に対して近接離間する方向に摺動自在に保持する筒状体と、該筒状体を上記シャフトに固定する固定部材とを備えて構成している。   In order to achieve such an object, the anti-scattering device for a mower of the present invention is for a mower attached to a mower having a disk-shaped rotary blade that is rotatably provided at the tip of a shaft and cuts the grass. In the anti-scattering device, cut grass with a flexible belt-like member surrounding the tip of the shaft and formed in an annular shape, whose lower edge can be slidably contacted with the upper surface of the rotary blade and whose outer surface is cut by the rotary blade. An anti-scattering member formed as a grass receiving surface, and a part of the anti-scattering member at a tip portion of the anti-scattering member, the lower edge of the anti-scattering member being close to and away from the upper surface of the rotary blade. A rod that is rotatably supported, a cylindrical body that slidably holds the rod in a direction in which the lower edge of the anti-scattering member approaches and separates from the upper surface of the rotary blade, and the cylindrical body And a fixing member that is fixed to the shaft.

これにより、この草刈機用飛散防止具をシャフトに固定して、飛散防止部材を草刈機の回転刃の上面に取り付け、草刈機を駆動させて草刈り作業を行なうと、回転刃によって切断された切断草は、回転刃の回転方向に遠心力を与えられて飛散しようとする。飛散しようとした切断草は、飛散防止部材の草受け面に当たって飛散防止部材の下に落ちて溜まるようになり、そのため、集草率を向上させて、作業性を向上させることができる。この場合、飛散防止部材の下縁を回転刃の上面に摺接させることにより、飛散防止部材と回転刃の上面との間に隙間が生じず、飛散しようとする切断草が隙間から侵入することが抑止されるので、切断草の飛散を確実に防止することができる。また、飛散防止部材を可撓性の帯状部材で構成したので、飛散防止部材と回転刃の上面とを摺接させても回転刃の回転を妨げることがない。更に、飛散防止部材は、シャフトを囲繞して設けられているので、確実に飛散防止部材がシャフトよりも回転刃の回転方向前位に設けられることになり、そのため、切断草を確実に草受け面で受けて、切断草の飛散を防止することができる。更にまた、飛散防止部材を環状に設けることにより、飛散防止部材がある程度の強度を持つようになるので、確実に飛散防止部材の草受け面で切断草を受けることができる。   As a result, when the mowing cutter is fixed to the shaft, the anti-scattering member is attached to the upper surface of the rotary blade of the mower, and the mower is driven by the mowing machine, the cutting cut by the rotary blade The grass tries to scatter by being given centrifugal force in the direction of rotation of the rotary blade. The cut grass to be scattered hits the grass receiving surface of the anti-scattering member and falls under the anti-scattering member and accumulates. Therefore, the grass collection rate can be improved and workability can be improved. In this case, when the lower edge of the scattering prevention member is brought into sliding contact with the upper surface of the rotary blade, there is no gap between the scattering prevention member and the upper surface of the rotary blade, and the cut grass to be scattered enters from the gap. Therefore, it is possible to reliably prevent the cutting grass from scattering. In addition, since the scattering prevention member is composed of a flexible belt-like member, even if the scattering prevention member and the upper surface of the rotary blade are brought into sliding contact, the rotation of the rotary blade is not hindered. Furthermore, since the anti-scattering member is provided so as to surround the shaft, the anti-scattering member is surely provided in front of the shaft in the rotational direction of the rotary blade, so that the cut grass is reliably received. It can be received on the surface to prevent scattering of cut grass. Furthermore, since the scattering preventing member has a certain strength by providing the scattering preventing member in an annular shape, the cut grass can be reliably received by the grass receiving surface of the scattering preventing member.

また、草刈り作業を行なっていくと、飛散防止部材の下に落ちた切断草が、回転刃の回転により、回転刃の上面と飛散防止部材の下縁との間に入り込んでしまう場合がある。この場合、切断草が回転刃の上面と飛散防止部材の下縁との間に入り込んで詰まろうとしても、入り込んだ切断草が飛散防止部材の下縁を押し上げる押圧力が掛かり、この押圧力によって、ロッドが筒状体を上方に摺動する。このロッドの摺動によって、飛散防止部材の一部が持ち上げられ、飛散防止部材の下縁が回転刃の上面に対して離間する。このとき、飛散防止部材は、その一部が回動軸を中心に回動するので、飛散防止部材の一部の下縁のみが回転刃の上面から離間するようになる。これにより、回転刃の上面と飛散防止部材の一部の下縁との間に隙間が形成され、この隙間から切断草が排除される。即ち、切断草が飛散防止部材の下縁と回転刃の上面との間に詰まって、回転刃の回転を妨げ、回転刃に過負荷が掛かって、草刈機が故障する事態を防止できるので、草刈り作業を中断する必要がなく、そのため、作業性を向上させることができる。   Further, when the mowing operation is performed, cut grass that has fallen under the scattering prevention member may enter between the upper surface of the rotary blade and the lower edge of the scattering prevention member due to the rotation of the rotary blade. In this case, even if the cutting grass enters between the upper surface of the rotary blade and the lower edge of the anti-scattering member and is clogged, a pressing force that pushes the lower edge of the anti-scattering member is applied. The rod slides up the cylindrical body. By the sliding of the rod, a part of the scattering prevention member is lifted, and the lower edge of the scattering prevention member is separated from the upper surface of the rotary blade. At this time, since a part of the scattering prevention member rotates about the rotation shaft, only a part of the lower edge of the scattering prevention member is separated from the upper surface of the rotary blade. Thereby, a clearance gap is formed between the upper surface of a rotary blade and the lower edge of a part of scattering prevention member, and cut grass is excluded from this clearance gap. That is, since the cut grass is clogged between the lower edge of the anti-scattering member and the upper surface of the rotary blade, the rotation of the rotary blade can be prevented, the rotary blade is overloaded, and the mower can be prevented from being broken. There is no need to interrupt the mowing operation, and therefore workability can be improved.

そして、必要に応じ、上記飛散防止部材を、一端部及び他端部を有した帯状部材を該一端部及び他端部が揃うように湾曲させて環状に形成し、該飛散防止部材の一端部及び他端部を上記ロッドの先端部を挟んで配置し、上記回動軸を上記飛散防止部材の一端部及び他端部を貫通させて上記ロッドの先端部に設けた構成としている。これにより、飛散防止部材を一本の帯状部材を湾曲させるだけで形成できるので、比較的容易に形成することができる。また、回動軸で飛散防止部材とロッドとを貫通して取り付けているので、簡易且つ確実に飛散防止部材とロッドとを取り付けることができる。   Then, if necessary, the scattering prevention member is formed into an annular shape by curving a band-like member having one end and the other end so that the one end and the other end are aligned, and one end of the scattering prevention member And the other end of the rod is disposed across the tip of the rod, and the rotation shaft is provided at the tip of the rod through the one end and the other end of the anti-scattering member. Thereby, since the scattering prevention member can be formed only by curving one strip-like member, it can be formed relatively easily. Further, since the anti-scattering member and the rod are attached through the rotating shaft, the anti-scattering member and the rod can be attached easily and reliably.

また、必要に応じ、上記回動軸を頭部を有したボルトで構成し、該ボルトにナットを螺合した構成としている。これにより、ボルトにナットを螺合させるだけで良いので、飛散防止部材とロッドとの取り付けを容易にすることができる。また、回動軸の頭部が、ロッドの外側に突出するようになるので、ロッドが筒状体を摺動したとき、筒状体の下端に頭部が衝止され、そのため、ロッドの上方への摺動を規制することができる。   Further, if necessary, the rotating shaft is constituted by a bolt having a head, and a nut is screwed into the bolt. Thereby, since it is only necessary to screw the nut onto the bolt, it is possible to easily attach the anti-scattering member and the rod. In addition, since the head of the rotating shaft comes to protrude outside the rod, when the rod slides on the cylindrical body, the head is stopped at the lower end of the cylindrical body, so that the top of the rod Can be regulated.

更に、必要に応じ、上記ロッドの基端部に上記筒状体の上端に衝止するストッパを設けた構成としている。これにより、ロッドが筒状体を摺動したとき、筒状体の上端にストッパが衝止され、そのため、ロッドの下方への摺動を規制することができる。   Furthermore, it is set as the structure which provided the stopper which stops at the upper end of the said cylindrical body at the base end part of the said rod as needed. Thereby, when a rod slides a cylindrical body, a stopper is stopped by the upper end of a cylindrical body, Therefore, the sliding to the downward direction of a rod can be controlled.

更にまた、必要に応じ、上記飛散防止部材の回動軸を、平面から見て上記回転刃の外周よりも突出して設けた構成としている。これにより、飛散防止部材を一本の帯状部材を用いて形成した場合等、飛散防止部材の一部が切断されていても、飛散防止部材の草受け面に当たって下に落ちた切断草が、回転刃の回転運動等により移動して、飛散防止部材の内側面側に入り込むことを防止することができる。   Furthermore, the rotation shaft of the scattering prevention member is provided so as to protrude from the outer periphery of the rotary blade when seen from the plane, if necessary. Thereby, even when a part of the anti-scattering member is cut, such as when the anti-scattering member is formed using a single belt-like member, the cut grass that falls below the grass receiving surface of the anti-scattering member is rotated. It is possible to prevent the blade from moving by the rotational movement of the blade and entering the inner surface side of the anti-scattering member.

そして、また、必要に応じ、上記固定部材を、上記シャフトに着脱可能にした構成としている。これにより、どのようなシャフトの草刈機にも取り付けることができるので、汎用性が向上する。   In addition, the fixing member is configured to be detachable from the shaft as necessary. Thereby, since it can attach to the mower of what kind of shaft, versatility improves.

そして、上記目的を達成するための本発明の技術的手段は、上記何れかに記載の草刈機用飛散防止具を備えた草刈機にある。汎用の草刈機であっても、草刈機用飛散防止具を取り付けるだけで、切断草の飛散を防止することができるので、汎用性が向上する。   And the technical means of this invention for achieving the said objective exists in the mower provided with the scattering prevention tool for mowers in any one of the said. Even if it is a general-purpose mower, it is possible to prevent scattering of cut grass by simply attaching the anti-scattering tool for the mower, so that versatility is improved.

本発明の草刈機用飛散防止具によれば、飛散しようとした切断草は、飛散防止部材の草受け面に当たって飛散防止部材の下に落ちて溜まるようになり、そのため、集草率を向上させて、作業性を向上させることができる。この場合、飛散防止部材の下縁を回転刃の上面に摺接させることにより、飛散防止部材と回転刃の上面との間に隙間が生じず、飛散しようとする切断草が隙間から侵入することが抑止されるので、切断草の飛散を確実に防止することができる。また、飛散防止部材を可撓性の帯状部材で構成したので、飛散防止部材と回転刃の上面とを摺接させても回転刃の回転を妨げることがない。更に、飛散防止部材は、シャフトの先端を囲繞して設けられているので、確実に飛散防止部材がシャフトよりも回転刃の回転方向前位に設けられることになり、そのため、切断草を確実に草受け面で受けて、切断草の飛散を防止することができる。更にまた、飛散防止部材を環状に設けることにより、飛散防止部材がある程度の強度を持つようになるので、確実に飛散防止部材の草受け面で切断草を受けることができる。   According to the anti-scattering device for a mower of the present invention, the cut grass to be scattered comes into contact with the grass receiving surface of the anti-scattering member and falls under the anti-scattering member, so that the grass collection rate is improved. Workability can be improved. In this case, when the lower edge of the scattering prevention member is brought into sliding contact with the upper surface of the rotary blade, there is no gap between the scattering prevention member and the upper surface of the rotary blade, and the cut grass to be scattered enters from the gap. Therefore, it is possible to reliably prevent the cutting grass from scattering. In addition, since the scattering prevention member is composed of a flexible belt-like member, even if the scattering prevention member and the upper surface of the rotary blade are brought into sliding contact, the rotation of the rotary blade is not hindered. In addition, since the anti-scattering member is provided so as to surround the tip of the shaft, the anti-scattering member is surely provided at the front of the rotating blade in the rotational direction rather than the shaft, so that the cut grass can be securely attached. It can be received on the grass receiving surface to prevent scattering of cut grass. Furthermore, since the scattering preventing member has a certain strength by providing the scattering preventing member in an annular shape, the cut grass can be reliably received by the grass receiving surface of the scattering preventing member.

また、切断草が回転刃の上面と飛散防止部材の下縁との間に入り込んで詰まろうとしても、入り込んだ切断草が飛散防止部材の下縁を押し上げる押圧力が掛かり、この押圧力によって、ロッドが筒状体を上方に摺動して、飛散防止部材の一部が持ち上げられるので、回転刃の上面と飛散防止部材の一部の下縁との間に隙間が形成され、この隙間から切断草を排除することができる。そのため、切断草が飛散防止部材の下縁と回転刃の上面との間に詰まって、回転刃の回転を妨げ、回転刃に過負荷が掛かって、草刈機が故障する事態を防止できるので、草刈り作業を中断する必要がなくなることから、作業性を向上させることができる。   In addition, even if the cutting grass enters between the upper surface of the rotary blade and the lower edge of the anti-scattering member and is clogged, a pressing force that pushes the lower edge of the anti-scattering member is applied, and by this pressing force, Since the rod slides up the cylindrical body and a part of the scattering prevention member is lifted, a gap is formed between the upper surface of the rotary blade and the lower edge of a part of the scattering prevention member. Cutting grass can be eliminated. Therefore, the cut grass is clogged between the lower edge of the anti-scattering member and the upper surface of the rotary blade, preventing the rotary blade from rotating, overloading the rotary blade, and preventing the grass mower from breaking down. Since it is not necessary to interrupt the mowing work, workability can be improved.

以下、添付図面に基づいて本発明の実施の形態に係る草刈機用飛散防止具を説明する。
図１乃至図１０には、本発明の実施の形態に係る草刈機用飛散防止具Ｓを示している。これは、シャフト１の先端に回転可能に設けられ草を切断する円板状の回転刃２を備えた草刈機Ｋに取り付けられるもので、可撓性の帯状部材１０ａでシャフト１の先端を囲繞して環状に形成され下縁１１が回転刃２の上面３に摺接可能且つ外側面１２が回転刃２で切断された切断草を受ける草受け面１２ａとして形成される飛散防止部材１０と、先端部２１に飛散防止部材１０の一部１３を飛散防止部材１０の下縁１１が回転刃２の上面３に対して近接離間する方向に回動軸２２を中心に回動可能に支持するロッド２０と、ロッド２０を飛散防止部材１０の下縁１１が回転刃２の上面３に対して近接離間する方向に摺動自在に保持する筒状体３０と、筒状体３０をシャフト１に固定する固定部材４０とを備えて構成されている。 Hereinafter, a scattering preventer for a mower according to an embodiment of the present invention will be described based on the accompanying drawings.
FIG. 1 to FIG. 10 show a grass cutter anti-scattering tool S according to an embodiment of the present invention. This is attached to a mower K provided with a disk-shaped rotary blade 2 that is rotatably provided at the tip of the shaft 1 and cuts grass, and surrounds the tip of the shaft 1 with a flexible belt-like member 10a. And an anti-scattering member 10 formed as a grass receiving surface 12a that is formed in an annular shape so that the lower edge 11 can be slidably contacted with the upper surface 3 of the rotary blade 2 and the outer surface 12 receives the cut grass cut by the rotary blade 2. A rod that supports a part 13 of the anti-scattering member 10 at the distal end portion 21 so as to be rotatable about a rotary shaft 22 in a direction in which the lower edge 11 of the anti-scattering member 10 approaches and separates from the upper surface 3 of the rotary blade 2. 20, a cylindrical body 30 that holds the rod 20 slidably in a direction in which the lower edge 11 of the scattering prevention member 10 approaches and separates from the upper surface 3 of the rotary blade 2, and the cylindrical body 30 is fixed to the shaft 1. And a fixing member 40 to be configured.

飛散防止部材１０は、比較的剛性のある可撓性部材で環状に形成されている。この飛散防止部材１０の一部１３は回動軸２２が挿通される挿通孔１４が形成されている。実施の形態では、例えば、合成樹脂等を用いて、長さ４５０ｍｍ〜５００ｍｍ、幅２０ｍｍ〜３０ｍｍ、厚さ２ｍｍ〜３ｍｍに形成され、一端部１３ａ及び他端部１３ｂを有した一本の帯状部材１０ａを、一端部１３ａ及び他端部１３ｂが揃うように湾曲させて環状に形成し、一端部１３ａ及び他端部１３ｂに、夫々挿通孔１４を形成している。取り付け時には、飛散防止部材１０は、その弾性により楕円状に膨らみ、外側面に外力が加わると多少撓み、外力がなくなると弾性で元の楕円状に戻る。   The scattering prevention member 10 is formed in an annular shape with a relatively rigid flexible member. A part 13 of the scattering prevention member 10 is formed with an insertion hole 14 through which the rotation shaft 22 is inserted. In the embodiment, for example, a synthetic belt or the like is used to form a single band-shaped member having a length of 450 mm to 500 mm, a width of 20 mm to 30 mm, and a thickness of 2 mm to 3 mm, and having one end 13a and the other end 13b. 10a is curved and formed in an annular shape so that the one end 13a and the other end 13b are aligned, and an insertion hole 14 is formed in each of the one end 13a and the other end 13b. At the time of attachment, the anti-scattering member 10 swells in an elliptical shape due to its elasticity, and slightly bends when an external force is applied to the outer surface, and returns to the original elliptical shape when elastic is lost.

ロッド２０は、先端部２１に回動軸２２が挿通される軸挿通孔２３が形成され、基端部２４に筒状体３０の上端３１に衝止するストッパ２５が挿通されるストッパ挿通孔２６が形成されている。このロッド２０の先端部２１を挟んで、飛散防止部材１０の一端部１３ａ及び他端部１３ｂを揃えて配置している。
回動軸２２は、頭部２２ａを有したボルト２２ｂで構成されている。このボルト２２ｂは、ロッド２０の先端部２１の軸挿通孔２３と、飛散防止部材１０の一端部１３ａ及び他端部１３ｂの挿通孔１４とを貫通して設けられている。また、ボルト２２ｂの挿通後、このボルト２２ｂにナット２２ｃを螺合させ、このナット２２ｃによってボルト２２ｂが固定されている。この回動軸２２は、草刈機Ｋに取り付けた状態のとき、平面から見て草刈機Ｋの回転刃２の外周よりも突出して設けられている。
ストッパ２５は、ピン状の金具で構成されている。このストッパ２５は、ロッド２０のストッパ挿通孔２６に挿通され、中間部を湾曲させ、これによってロッド２０に固定されている。このストッパ２５には、ロッド２０が摺動して筒状体３０の上端３１に衝止したとき、その衝撃に耐えうるために補強リング２７が設けられている。 In the rod 20, a shaft insertion hole 23 through which the rotation shaft 22 is inserted is formed at the distal end portion 21, and a stopper insertion hole 26 through which a stopper 25 that stops against the upper end 31 of the cylindrical body 30 is inserted in the base end portion 24. Is formed. One end portion 13a and the other end portion 13b of the anti-scattering member 10 are arranged so as to sandwich the tip portion 21 of the rod 20.
The rotating shaft 22 is constituted by a bolt 22b having a head portion 22a. The bolt 22 b is provided through the shaft insertion hole 23 at the tip end portion 21 of the rod 20 and the insertion hole 14 at the one end portion 13 a and the other end portion 13 b of the scattering prevention member 10. Further, after inserting the bolt 22b, a nut 22c is screwed into the bolt 22b, and the bolt 22b is fixed by the nut 22c. The rotating shaft 22 is provided so as to protrude from the outer periphery of the rotary blade 2 of the mower K when viewed from the top when attached to the mower K.
The stopper 25 is composed of a pin-shaped metal fitting. The stopper 25 is inserted into the stopper insertion hole 26 of the rod 20, and the middle portion is curved, thereby being fixed to the rod 20. The stopper 25 is provided with a reinforcing ring 27 in order to withstand the impact when the rod 20 slides and stops at the upper end 31 of the cylindrical body 30.

筒状体３０は、ロッド２０が摺動自在に挿通される径の筒状に形成され、固定部材４０に取り付け固定されている。実施の形態では、溶接等により一体形成されている。この筒状体３０は、その軸線が、飛散防止部材１０の下縁１１が回転刃２の上面３に対して近接離間する方向にロッド２０を摺動させる方向に沿って設けられている。   The cylindrical body 30 is formed in a cylindrical shape having a diameter through which the rod 20 is slidably inserted, and is fixed to the fixing member 40. In the embodiment, they are integrally formed by welding or the like. The cylindrical body 30 is provided such that its axis is along the direction in which the rod 20 is slid in a direction in which the lower edge 11 of the anti-scattering member 10 approaches and separates from the upper surface 3 of the rotary blade 2.

固定部材４０は、草刈機Ｋのシャフト１に着脱可能に取り付けられている。実施の形態では、シャフト１を挾持する一対の挾持体４１と、この一対の挾持体４１を接続する頭部４２ａを有した接続ボルト４２と、接続ボルト４２に螺合される接続ナット４３とを備えて構成されている。
挾持体４１は、平板を、その中間部を湾曲させて凹部４４を形成し、両側端部に接続ボルト４２が挿通されるボルト挿通孔４５が一対形成されている。また、一方の挾持体４１には、筒状体３０が溶接等により一体に取り付け固定されている。この一対の挾持体４１は、凹部４４同士が対向するように位置されている。この一対の挾持体４１をシャフト１を挟んで対向させ、接続ボルト４２を一対のボルト挿通孔４５に挿通し、接続ナット４３を螺合させて取り付けている。 The fixing member 40 is detachably attached to the shaft 1 of the mower K. In the embodiment, a pair of holding bodies 41 that hold the shaft 1, a connection bolt 42 having a head 42 a that connects the pair of holding bodies 41, and a connection nut 43 that is screwed to the connection bolt 42. It is prepared for.
The holding body 41 has a flat plate curved at its middle portion to form a recess 44, and a pair of bolt insertion holes 45 through which the connection bolts 42 are inserted at both side ends. Further, the cylindrical body 30 is integrally attached and fixed to one holding body 41 by welding or the like. The pair of holding bodies 41 are positioned so that the recesses 44 face each other. The pair of holding bodies 41 are opposed to each other with the shaft 1 interposed therebetween, the connection bolt 42 is inserted into the pair of bolt insertion holes 45, and the connection nut 43 is screwed together.

従って、この実施の形態に係る草刈機用飛散防止具Ｓを草刈機Ｋに取り付けて草刈り作業を行なうときは、以下のようにする。
先ず、草刈機Ｋに、本発明の草刈機用飛散防止具Ｓを取り付ける。取り付けは、草刈機Ｋのシャフト１が挾持体４１の凹部４４に入り込むように、挾持体４１をシャフト１に当接させて挟んで対向させ、挾持体４１の一対のボルト挿通孔４５に接続ボルト４２を夫々挿通し、その後、接続ボルト４２の頭部４２ａとは反対側から、接続ナット４３を螺合して、一対の挾持体４１をシャフト１に取り付け固定する。このとき、飛散防止部材１０の下縁１１が、回転刃２の上面３に当接する位置に取り付け固定する。この状態では、筒状体３０の上端３１に、ストッパ２５及び補強リング２７が衝止されている。 Therefore, when the mowing machine anti-scattering tool S according to this embodiment is attached to the mower K and the mowing operation is performed, the following is performed.
First, the anti-scattering tool S for mower of the present invention is attached to the mower K. For attachment, the holding body 41 is brought into contact with the shaft 1 so as to be opposed to the shaft 1 so that the shaft 1 of the mower K enters the recess 44 of the holding body 41, and is connected to the pair of bolt insertion holes 45 of the holding body 41. 42 is inserted, and then the connection nut 43 is screwed in from the opposite side of the head 42a of the connection bolt 42 to attach and fix the pair of holding bodies 41 to the shaft 1. At this time, the lower edge 11 of the anti-scattering member 10 is attached and fixed at a position where it contacts the upper surface 3 of the rotary blade 2. In this state, the stopper 25 and the reinforcing ring 27 are stopped at the upper end 31 of the cylindrical body 30.

この状態で、草刈機Ｋを駆動し、草刈り作業を行なう。ここでは、回転刃２を左右に振りながら作業者から見て左側にある草を草刈りする場合について説明する。先ず、両手で図示外のハンドルを把持する。そして、図示外のエンジンを駆動させて回転刃２を回転させる。このとき、回転刃２は作業者から見て反時計回りに回転する。   In this state, the mower K is driven to perform mowing work. Here, a case will be described in which grass on the left side as viewed from the operator is mowed while the rotary blade 2 is swung left and right. First, a handle (not shown) is grasped with both hands. Then, the rotary blade 2 is rotated by driving an engine (not shown). At this time, the rotary blade 2 rotates counterclockwise as viewed from the operator.

そして、回転刃２を左右に振りながら作業者から見て左側にある草を草刈りしていく。切断したい草の根元に回転刃２を接触させ、草を切断しながら回転刃２の位置を作業者から見て左へ移動させていく。このとき、回転刃２によって切断された切断草は、回転刃２の回転方向に遠心力を与えられて飛散しようとする。飛散しようとした切断草は、図８に示すように、飛散防止部材１０の草受け面１２ａに当たって飛散防止部材１０の下に落ちて溜まるようになり、そのため、集草率を向上させて、作業性を向上させることができる。この場合、飛散防止部材１０の下縁１１を回転刃２の上面３に摺接させることにより、飛散防止部材１０と回転刃２の上面３との間に隙間が生じず、飛散しようとする切断草が隙間から侵入することが抑止されるので、切断草の飛散を確実に防止することができる。また、飛散防止部材１０を可撓性の帯状部材１０ａで構成したので、飛散防止部材１０と回転刃２の上面３とを摺接させても回転刃２の回転を妨げることがない。   Then, the grass on the left side as seen from the operator is mowed while swinging the rotary blade 2 to the left and right. The rotary blade 2 is brought into contact with the root of the grass to be cut, and the position of the rotary blade 2 is moved to the left as viewed from the operator while cutting the grass. At this time, the cutting grass cut by the rotary blade 2 is given a centrifugal force in the rotation direction of the rotary blade 2 and tends to scatter. As shown in FIG. 8, the cut grass to be scattered hits the grass receiving surface 12 a of the scattering prevention member 10 and falls and accumulates under the scattering prevention member 10, thereby improving the grass collection rate and improving workability. Can be improved. In this case, the lower edge 11 of the anti-scattering member 10 is brought into sliding contact with the upper surface 3 of the rotary blade 2 so that no gap is formed between the anti-scattering member 10 and the upper surface 3 of the rotary blade 2 and the cutting is about to be performed. Since the grass is prevented from entering through the gap, it is possible to reliably prevent the cut grass from scattering. Further, since the scattering prevention member 10 is composed of the flexible belt-like member 10a, the rotation of the rotary blade 2 is not hindered even if the scattering prevention member 10 and the upper surface 3 of the rotary blade 2 are brought into sliding contact.

また、飛散防止部材１０は、シャフト１を囲繞して設けられているので、確実に飛散防止部材１０がシャフト１よりも回転刃２の回転方向前位に設けられることになり、そのため、切断草を確実に草受け面１２ａで受けて、切断草の飛散を防止することができる。更に、飛散防止部材１０を環状に設けることにより、飛散防止部材１０がある程度の強度を持つようになるので、確実に飛散防止部材１０の草受け面１２ａで切断草を受けることができる。本実施の形態では、飛散防止部材１０を一本の帯状部材１０ａを用いて形成しているが、回動軸２２が平面から見て草刈機Ｋの回転刃２の外周よりも突出して設けられているので、飛散防止部材１０の一部１３が切断されていても、飛散防止部材１０の草受け面１２ａに当たって下に落ちた切断草が、回転刃２の回転運動等により移動して、切断されている一端部１３ａ及び他端部１３ｂから、飛散防止部材１０の内側面１５側に入り込むことを防止することができる。   In addition, since the scattering prevention member 10 is provided so as to surround the shaft 1, the scattering prevention member 10 is surely provided in front of the shaft 1 in the rotation direction of the rotary blade 2. Can be reliably received by the grass receiving surface 12a, and scattering of the cut grass can be prevented. Furthermore, since the scattering prevention member 10 has a certain level of strength by providing the scattering prevention member 10 in an annular shape, the cut grass can be reliably received by the grass receiving surface 12a of the scattering prevention member 10. In the present embodiment, the scattering prevention member 10 is formed by using a single belt-like member 10a, but the rotation shaft 22 is provided so as to protrude from the outer periphery of the rotary blade 2 of the mower K as seen from the plane. Therefore, even if a part 13 of the anti-scattering member 10 is cut, the cut grass that has fallen down on the grass receiving surface 12a of the anti-scattering member 10 moves by the rotational movement of the rotary blade 2 and cuts. It is possible to prevent the scattering preventing member 10 from entering the inner surface 15 side from the one end portion 13a and the other end portion 13b.

そして、回転刃２の上面３に一定量の切断草が溜まった状態で草刈り作業を続けていくと、飛散防止部材１０の下に落ちた切断草が、回転刃２の回転により、回転刃２の上面３と飛散防止部材１０の下縁１１との間に入り込んでしまう場合がある。この場合、図９及び図１０に示すように、切断草が回転刃２の上面３と飛散防止部材１０の下縁１１との間に入り込んで詰まろうとしても、入り込んだ切断草が飛散防止部材１０の下縁１１を押し上げる押圧力が掛かり、この押圧力によって、ロッド２０が筒状体３０を上方に摺動する。このロッド２０の摺動によって、飛散防止部材１０の一部１３が持ち上げられ、飛散防止部材１０の下縁１１が回転刃２の上面３に対して離間する。このとき、飛散防止部材１０は、その一部１３が回動軸２２を中心に回動するので、飛散防止部材１０の一部１３の下縁１１のみが回転刃２の上面３から離間するようになる。これにより、図１０に示すように、回転刃２の上面３と飛散防止部材１０の一部１３の下縁１１との間に隙間が形成され、この隙間から切断草が排除される。即ち、切断草が飛散防止部材１０の下縁１１と回転刃２の上面３との間に詰まって、回転刃２の回転を妨げ、回転刃２に過負荷が掛かって、草刈機Ｋが故障する事態を防止できるので、草刈り作業を中断する必要がなく、そのため、作業性を向上させることができる。   When the mowing operation is continued in a state where a certain amount of cut grass is accumulated on the upper surface 3 of the rotary blade 2, the cut grass that has fallen under the scattering prevention member 10 is rotated by the rotary blade 2. Between the upper surface 3 and the lower edge 11 of the anti-scattering member 10 in some cases. In this case, as shown in FIGS. 9 and 10, even if the cut grass enters between the upper surface 3 of the rotary blade 2 and the lower edge 11 of the anti-scattering member 10, the cut grass that has entered enters the anti-scattering member. A pressing force that pushes up the lower edge 11 of 10 is applied, and the rod 20 slides upward on the cylindrical body 30 by this pressing force. By the sliding of the rod 20, a part 13 of the scattering prevention member 10 is lifted, and the lower edge 11 of the scattering prevention member 10 is separated from the upper surface 3 of the rotary blade 2. At this time, since the part 13 of the scattering prevention member 10 rotates about the rotation shaft 22, only the lower edge 11 of the part 13 of the scattering prevention member 10 is separated from the upper surface 3 of the rotary blade 2. become. Thereby, as shown in FIG. 10, a clearance gap is formed between the upper surface 3 of the rotary blade 2 and the lower edge 11 of the part 13 of the scattering prevention member 10, and cut grass is excluded from this clearance. That is, the cut grass is clogged between the lower edge 11 of the anti-scattering member 10 and the upper surface 3 of the rotary blade 2, preventing the rotary blade 2 from rotating, overloading the rotary blade 2, and causing the mower K to malfunction. Therefore, it is not necessary to interrupt the mowing operation, and therefore the workability can be improved.

また、回転刃２の上面３と飛散防止部材１０の下縁１１との間に大量の切断草が入り込むと、ロッド２０が上方に摺動する摺動距離が長くなるが、ロッド２０の先端部２１に、回動軸２２の頭部２２ａが突出しているので、ロッド２０が筒状体３０を上方に摺動したとき、筒状体３０の下端３２に頭部２２ａが衝止され、そのため、ロッド２０の上方への摺動を規制することができる。   Further, when a large amount of cut grass enters between the upper surface 3 of the rotary blade 2 and the lower edge 11 of the anti-scattering member 10, the sliding distance over which the rod 20 slides upward becomes longer. 21, the head 22 a of the rotating shaft 22 protrudes, so when the rod 20 slides upward on the cylindrical body 30, the head 22 a is bumped to the lower end 32 of the cylindrical body 30. The upward sliding of the rod 20 can be restricted.

そして、回転刃２の上面３と飛散防止部材１０の下縁１１との間に入り込んだ切断草が排除されると、ロッド２０は自重により、筒状体３０を下方に摺動していく。このとき、筒状体３０の上端３１にストッパ２５が衝止され、そのため、ロッド２０の下方への摺動を規制することができる。
即ち、ロッド２０は、回動軸２２の頭部２２ａとストッパ２５とによって、その摺動を規制されるので、ロッド２０が筒状体３０から抜け出る事態を防止することができる。 When the cut grass that has entered between the upper surface 3 of the rotary blade 2 and the lower edge 11 of the anti-scattering member 10 is eliminated, the rod 20 slides down the cylindrical body 30 by its own weight. At this time, the stopper 25 is stopped by the upper end 31 of the cylindrical body 30, and therefore, the downward sliding of the rod 20 can be restricted.
That is, the rod 20 is restricted from sliding by the head portion 22 a of the rotating shaft 22 and the stopper 25, so that the rod 20 can be prevented from coming out of the cylindrical body 30.

ある程度草刈り作業を行ない、回転刃２の上面３に一定量の切断草が溜まったら、溜まった切断草を地面に落とす。こうすることで、作業終了後に、例えば、箒などで切断草を集草する手間を省くことができる。   After mowing to some extent, when a certain amount of cut grass accumulates on the upper surface 3 of the rotary blade 2, the accumulated cut grass is dropped onto the ground. By doing so, it is possible to save the trouble of collecting the cut grass with, for example, a scissors after the work is completed.

そして、ある程度草刈り作業を行ない、溜まった切断草を地面に落としたら、次の切断したい草の根元に回転刃２を接触させ、草を切断しながら回転刃２の位置を作業者から見て左へ移動させていく。   After mowing to some extent and dropping the accumulated cut grass onto the ground, the rotary blade 2 is brought into contact with the root of the next grass to be cut, and the position of the rotary blade 2 is viewed from the operator while cutting the grass to the left. I will move it.

また、本発明の草刈機用飛散防止具Ｓは、固定部材４０を、草刈機Ｋのシャフト１に取り付け，取り外しを行なうことで、どのような草刈機Ｋにも取り付けることができ、汎用の草刈機Ｋであっても、本発明の草刈機用飛散防止具Ｓを取り付けるだけで、切断草の飛散を防止することができるので、それだけ、汎用性が向上する。
この場合、固定部材４０の取り付け，取り外しを、接続ボルト４２と接続ナット４３との螺合及び螺合解除によって行なうことができるので、比較的容易に行なうことができる。 Further, the scattering preventive tool S for a mower according to the present invention can be attached to any mower K by attaching and detaching the fixing member 40 to / from the shaft 1 of the mower K. Even with the machine K, it is possible to prevent the cut grass from scattering only by attaching the grass cutter anti-scattering tool S of the present invention, so that versatility is improved accordingly.
In this case, the attachment and detachment of the fixing member 40 can be performed by screwing and releasing the connection bolt 42 and the connection nut 43, so that it can be performed relatively easily.

尚、本発明の草刈機用飛散防止具Ｓは、どのような草刈機Ｋにも設けることが可能であるので、上記実施の形態に係る草刈機Ｋに限定されないのは勿論である。   In addition, since the scattering prevention tool S for mowers of this invention can be provided in any mower K, it is needless to say that it is not limited to the mower K which concerns on the said embodiment.

尚また、上記実施の形態において、回転刃２が作業者から見て反時計回りに回転する草刈機Ｋを使用したが、必ずしもこれに限定されるものではなく、回転刃２が作業者から見て時計回りに回転する草刈機Ｋであっても良く、適宜変更して差支えない。この場合も、上記と同様の作用，効果を奏する。   In the above embodiment, the mowing machine K in which the rotary blade 2 rotates counterclockwise when viewed from the operator is used. However, the present invention is not necessarily limited to this, and the rotary blade 2 is viewed from the operator. The mower K rotating clockwise can be changed as appropriate. Also in this case, the same operations and effects as described above are achieved.

本発明の実施の形態に係る草刈機用飛散防止具を草刈機に取り付けた状態で示す斜視図である。It is a perspective view shown in the state where the scattering prevention tool for mowers concerning an embodiment of the invention was attached to the mower. 本発明の実施の形態に係る草刈機用飛散防止具を示す正面図である。It is a front view which shows the scattering prevention tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を示す平面図である。It is a top view which shows the scattering prevention tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を示すＡ−Ａ線断面図である。It is an AA line sectional view showing the scattering prevention tool for mowers concerning an embodiment of the invention. 本発明の実施の形態に係る草刈機用飛散防止具を示す底面図である。It is a bottom view which shows the scattering prevention tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を示す左側面図である。It is a left view which shows the scattering prevention tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を示す右側面図である。It is a right view which shows the scattering prevention tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を草刈機に取り付けた状態及びその使用状態で示す（ａ）は側面図、（ｂ）は平面図である。BRIEF DESCRIPTION OF THE DRAWINGS (a) is a side view, (b) is a top view which shows the state which attached to the mower, and the use condition of the anti-scattering tool for mowers concerning embodiment of this invention. 本発明の実施の形態に係る草刈機用飛散防止具を草刈機に取り付けた状態でロッドが上方に摺動した状態を示す斜視図である。It is a perspective view which shows the state which the rod slid upwards in the state which attached the scattering prevention tool for mowers concerning embodiment of this invention to the mower. 本発明の実施の形態に係る草刈機用飛散防止具を草刈機に取り付けた状態でロッドが上方に摺動した状態及びその使用状態で示す（ａ）は側面図、（ｂ）は平面図である。(A) is a side view and (b) is a plan view showing a state in which the rod slides upward in a state where the anti-scattering device for mowers according to the embodiment of the present invention is attached to the mower, and its use state. is there. 従来の草刈機用飛散防止具及び草刈機の一例を示す図である。It is a figure which shows an example of the scattering prevention tool for conventional mowers, and a mower.

符号の説明Explanation of symbols

Ｓ 草刈機用飛散防止具
Ｋ 草刈機
１ シャフト
２ 回転刃
３ 上面
１０ 飛散防止部材
１０ａ 帯状部材
１１ 下縁
１２ 外側面
１２ａ 草受け面
１３ 一部
１３ａ 一端部
１３ｂ 他端部
１４ 挿通孔
１５ 内側面
２０ ロッド
２１ 先端部
２２ 回動軸
２２ａ 頭部
２２ｂ ボルト
２２ｃ ナット
２３ 軸挿通孔
２４ 基端部
２５ ストッパ
２６ ストッパ挿通孔
２７ 補強リング
３０ 筒状体
３１ 上端
３２ 下端
４０ 固定部材
４１ 挾持体
４２ 接続ボルト
４２ａ 頭部
４３ 接続ナット
４４ 凹部
４５ ボルト挿通孔 S Scattering prevention tool K for mower 1 Mower 1 Shaft 2 Rotating blade 3 Upper surface 10 Scattering prevention member 10a Strip member 11 Lower edge 12 Outer side surface 12a Grass receiving surface 13 Part 13a One end portion 13b Other end portion 14 Insertion hole 15 Inner side surface 20 Rod 21 Tip 22 Rotating shaft 22a Head 22b Bolt 22c Nut 23 Shaft insertion hole 24 Base end 25 Stopper 26 Stopper insertion hole 27 Reinforcement ring 30 Cylindrical body 31 Upper end 32 Lower end 40 Fixing member 41 Holding body 42 Connection bolt 42a Head 43 Connection nut 44 Recess 45 Bolt insertion hole

Claims (7)

シャフトの先端に回転可能に設けられ草を切断する円板状の回転刃を備えた草刈機に取り付けられる草刈機用飛散防止具において、
可撓性の帯状部材で上記シャフトの先端を囲繞して環状に形成され下縁が上記回転刃の上面に摺接可能且つ外側面が上記回転刃で切断された切断草を受ける草受け面として形成される飛散防止部材と、先端部に上記飛散防止部材の一部を該飛散防止部材の下縁が上記回転刃の上面に対して近接離間する方向に回動軸を中心に回動可能に支持するロッドと、該ロッドを上記飛散防止部材の下縁が上記回転刃の上面に対して近接離間する方向に摺動自在に保持する筒状体と、該筒状体を上記シャフトに固定する固定部材とを備えて構成したことを特徴とする草刈機用飛散防止具。 In the anti-scattering tool for a mower attached to a mower equipped with a disk-shaped rotary blade that is provided rotatably at the tip of a shaft and cuts grass,
As a grass receiving surface that receives a cut grass in which a flexible belt-like member surrounds the tip of the shaft and is formed in an annular shape, the lower edge is slidable on the upper surface of the rotary blade, and the outer surface is cut by the rotary blade The formed anti-scattering member and a part of the anti-scattering member at the tip can be rotated around a rotation axis in a direction in which the lower edge of the anti-scattering member is close to and away from the upper surface of the rotary blade. A rod to be supported, a cylindrical body that slidably holds the rod in a direction in which the lower edge of the anti-scattering member approaches and separates from the upper surface of the rotary blade, and the cylindrical body is fixed to the shaft An anti-scattering device for a mower characterized by comprising a fixing member. 上記飛散防止部材を、一端部及び他端部を有した帯状部材を該一端部及び他端部が揃うように湾曲させて環状に形成し、該飛散防止部材の一端部及び他端部を上記ロッドの先端部を挟んで配置し、上記回動軸を上記飛散防止部材の一端部及び他端部を貫通させて上記ロッドの先端部に設けたことを特徴とする請求項１記載の草刈機用飛散防止具。   The anti-scattering member is formed into an annular shape by bending a band-like member having one end and the other end so that the one end and the other end are aligned, and the one end and the other end of the anti-scattering member are 2. The mower according to claim 1, wherein the mower is disposed at a tip end portion of the rod, and is disposed at a tip end portion of the rod through the one end portion and the other end portion of the scattering prevention member. Anti-scattering device. 上記回動軸を頭部を有したボルトで構成し、該ボルトにナットを螺合したことを特徴とする請求項２記載の草刈機用飛散防止具。   The scattering prevention tool for a mower according to claim 2, wherein the rotating shaft is constituted by a bolt having a head, and a nut is screwed onto the bolt. 上記ロッドの基端部に上記筒状体の上端に衝止するストッパを設けたことを特徴とする請求項１乃至３何れかに記載の草刈機用飛散防止具。   The scattering prevention tool for a mower according to any one of claims 1 to 3, wherein a stopper that stops at an upper end of the cylindrical body is provided at a base end portion of the rod. 上記飛散防止部材の回動軸を、平面から見て上記回転刃の外周よりも突出して設けたことを特徴とする請求項１乃至４何れかに記載の草刈機用飛散防止具。   The scattering prevention tool for a mower according to any one of claims 1 to 4, wherein the rotation shaft of the scattering prevention member is provided so as to protrude from the outer periphery of the rotary blade as viewed from above. 上記固定部材を、上記シャフトに着脱可能にしたことを特徴とする請求項１乃至５何れかに記載の草刈機用飛散防止具。   The scattering prevention tool for a mower according to any one of claims 1 to 5, wherein the fixing member is detachable from the shaft. 上記請求項１乃至６何れかに記載の草刈機用飛散防止具を備えたことを特徴とする草刈機。   A mowing machine comprising the anti-scattering device for a mowing machine according to any one of claims 1 to 6.
JP2008206974A 2008-08-11 2008-08-11 Scatter preventer for mower and mower Expired - Fee Related JP4209934B1 (en)

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CN107750579A (en) * 2017-10-18 2018-03-06 惠州市洛玛科技有限公司 Cut careless device and its cut careless method
CN107580855A (en) * 2017-10-18 2018-01-16 惠州市洛玛科技有限公司 Mowing-apparatus
CN107801473A (en) * 2017-10-18 2018-03-16 惠州市洛玛科技有限公司 Hay mover and its mowing method

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