JP3575711B2 - Mower - Google Patents

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JP3575711B2
JP3575711B2 JP13065395A JP13065395A JP3575711B2 JP 3575711 B2 JP3575711 B2 JP 3575711B2 JP 13065395 A JP13065395 A JP 13065395A JP 13065395 A JP13065395 A JP 13065395A JP 3575711 B2 JP3575711 B2 JP 3575711B2
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Prior art keywords
blade
ridge
slope
wheel
mowing machine
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JPH08322361A (en
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実美 花房
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Description

【0001】
【産業上の利用分野】
本発明は草刈機の改良に関する。
【0002】
【従来の技術】
稲作の労働軽減の一策として、畦の草刈りを人力から機械力に置き換える試みがなされ、例えば特開平6−276825号公報「草刈機及び角度調整装置及び揺動制御装置」があり、その公報の図1及び図5によれば、フレームF(車体フレームに相当)にカッター基台2を取付け、このカッター基台2に可変カッター基台3をヒンジ連結した二面刈り草刈機であって、カッター基台2に畦の上面を刈る回転刃43(平面刃に相当)を収納し、可変カッター基台3に畦の斜面を刈る回転刃43a(斜面刃に相当)を収納した構成である。
すなわち、フレームFにはガイド車輪21(前輪に相当)及び走行車輪10(後輪に相当)と、ガイド車輪21と走行車輪10との間の回転刃43,43aとを備え、フレームFの走行方向軸心から一方に回転刃43aをオフセットした構成である。なお、可変カッター基台3にはガイド車輪31を備えている。
【0003】
【発明が解決しようとする課題】
一般に、草刈機で畦の上面と斜面とを同時に草刈りをする場合、刈り残しをなくするには、畦の斜面と回転刃43aとの間隔を一定にすればよい。そのためには、草刈機を畦の角に沿って走行させる必要があり、作業者は操縦の目安となるガイド車輪21と畦の角との間隔が一定になるように操縦するが、ガイド車輪21を畦の角にできるだけ近づける方が間隔を一定にしやすい。しかし、ガイド車輪21を畦の角に近づけると走行車輪10も近づくことになるので、畦の上面から脱輪する恐れが大きくなる。そうならぬように操縦しなければならないので、作業者の負担は極めて大きくなる。
特に、上記従来の技術のように、フレームFの走行方向軸心から畦の斜面側に回転刃43aをオフセットした構成では、草刈機の左右の重量バランスが偏った場合に直進走行をさせることが容易でなく、作業者の負担が一層増す。
一方、一面刈り草刈機、二面刈り草刈機共に刈刃が車体フレームの走行方向軸心からオフセットしている場合には、直進走行性を高めるために草刈機の左右の重量バランスを十分にとるなどの配慮が必要である。
【0004】
本発明の目的は、▲1▼草刈機を畦の角に沿って走行する場合に、前・後輪が畦の上面から踏み外すことがなく作業者の負担を軽減できること、▲2▼草刈機の左右の重量バランスをとるのに特別の部材を設けることなく、直進走行性を高めることにある。
【0005】
【課題を解決するための手段】
上記目的を達成するために本発明は、畦の上面の草を刈る平面刃及び畦の斜面の草を刈る斜面刃を左右に離間して配置した二面刈り草刈機であって、車体フレームに前輪と後輪との2輪と前・後輪の間の上記平面刃とを備え、後輪を通る車体フレームの走行方向軸心から一方に上記平面刃及び上記斜面刃をオフセットさせた草刈機において、
上記走行方向軸心に対して、上記平面刃よりも上記斜面刃を大きくオフセットさせ、上記前輪を上記斜面刃と同方向にオフセットさせることで、畦の上面において前輪を畦の上面と斜面との角に近づけて走行させるように構成したことを特徴とする。
【0006】
好ましくは、上記草刈機の後輪側を前輪側よりも重くする。
【0007】
【作用】
草刈機を畦の角に沿って走行する場合に、ハンドル操作のガイドとなる前輪だけを畦の角に近づけることができるので、前・後輪が畦の上面から脱輪する恐れがなく作業者の負担が軽減される。また、直進走行性が高まる。
【0008】
草刈機の後輪側を前輪側よりも重くしたことで、ハンドル操作のガイドとなる前輪が軽くなり、操縦性が良くなる。
【0009】
【実施例】
本発明の実施例を添付図に基づいて以下に説明する。なお、「前」、「後」、「左」、「右」、「上」、「下」は草刈機の作業者から見た方向に従う。また、図面は符号の向きに見るものとする。
図1は本発明に係る草刈機の平面図であり、草刈機1は、パイプ状の車体フレーム2の前部に前輪3、後部に後輪4を備え、前記車体フレーム2に、より大径の揺動管5を嵌合し、この揺動管5にエンジン7を載置するとともにカッタハウジング10を吊り下げ、カッタハウジング10内部に平面刃21と斜面刃22とを前後及び左右に離間して配置した二面刈り草刈機の構成である。
【0010】
カッタハウジング10は、車体フレーム2に取付けられた固定側ハウジングとしての第1ハウジング11と揺動側ハウジングとしての第2ハウジング12とをヒンジ13にて連結したものであり、第1ハウジング11は平面刃21を収納し、第2ハウジング12は斜面刃22を収納する。14はヒンジ13を通る揺動軸線である。
すなわち、草刈機1は後輪4の輪幅中心を通る車体フレーム2の走行方向軸心Aから一方(この実施例では左側)に平面刃21及び斜面刃22をオフセットし、同方向にオフセット寸法Lだけ前輪3の輪幅中心Bもオフセットし、他方(この実施例では右側)にエンジン7をオフセットしたものである。平面刃21は走行方向軸心Aからわずかにオフセットしている。
【0011】
この場合、前輪3は草刈機1を走行する際の操縦の目安となるガイド車輪であって細幅タイヤからなり、後輪4は草刈機1を自走するための走行車輪であって広幅タイヤからなる。
具体的には、後輪4は前輪3よりも輪幅が広く設定され、例えば、前輪3の輪幅(約35mm)と後輪4の輪幅(約100mm)の比率は約1:3である。また、前輪3のオフセット寸法Lは約35〜40mmである。このため、前輪3の左側面と後輪4の左側面とは概ね一致する。
更に、草刈機1は後輪4側を前輪3側よりも重く設定され、例えば、草刈機1の重量配分は、前輪3で受ける重量と後輪4で受ける重量との比率を約1:4に設定される。
【0012】
前輪3は、車体フレーム2の前部から延出した前輪用アーム23に取付けられる。また、第2ハウジング12の左側前部から補助輪用アーム24が延出され、補助輪用アーム24の前部に第2ハウジング12の高さを規定するための補助輪25が取付けられる。
【0013】
エンジン7は出力軸7aが下向きであり、ベルト伝動機構30を介して前記平面刃21及び斜面刃22を回動するものである。
ベルト伝動機構30は上下2段に張られた第1ベルト31、第2ベルト32及びプーリ類からなり、第1ベルト31で平面刃21を駆動し、第2ベルト32で斜面刃22を駆動するものである。
すなわち、第1ベルト31は、エンジン7の出力軸7aに取付けられた第1プーリ33と、平面刃軸21aを駆動するための第2プーリ34とに巻回されている。
【0014】
42は第1ハウジング11に係止された揺動レバーであり、この揺動レバー42の一端にテンショナーロール43、他端にブレーキシュー44を形成し、作業者が図示せぬ操作レバー及びワイヤで揺動レバー42を図反時計方向へ揺動すれば、第1ベルト31は緊張して、第1プーリ33の動力を第2プーリ34に伝達し、平面刃軸21aを駆動する構成となっている。逆に、揺動レバー42を図時計方向へ揺動すれば、第1ベルト31は弛み、動力の伝達が弱まり、ブレーキシュー42で第1ベルト31を制動することができる。
以上の要領で、エンジン運転中並びに走行中に、任意に平面刃21の運転/停止をなせる。
【0015】
第2ベルト32は、第2プーリ34の下方に一体形成されたアイドラープーリ35(以下「第3プーリ35」と言う)、斜面刃軸22aを駆動するための第4プーリ36、揺動軸線14の近傍に概ね前後1列に配列された3つのアイドラープーリ37〜39(以下「第5・第6・第7プーリ37〜39」と言う)、第5プーリ37の下方に一体形成されたアイドラープーリ41(以下「第8プーリ41」と言う)に巻回されている。
配置的には、後側の第5プーリ37(第8プーリ41を含む)を第1ハウジング11に軸支し、前側の傾斜した第6プーリ38及び中央の第7プーリ39を第2ハウジング12に軸支している。従って、第2ベルト32は第3プーリ35・第5プーリ37・第6プーリ38・第4プーリ36・第7プーリ39・第8プーリ41・第3プーリ35のループで巻回される。
【0016】
図2は本発明に係る草刈機の側面図(要部)であり、車体フレーム2に揺動管5が取付けられ、この揺動管5にマウントプレート6を介してエンジン7がマウントされ、一方、揺動管5にハンガブラケット8,8を介して第1ハウジング11が吊り下げられていることを示す。
エンジン7は上記2つの刈刃(平面刃21及び斜面刃22)の他に、ユニバーサル軸26を介して無段変速機27を駆動し、この無段変速機27でチェーン28を介して後輪4を駆動するものである。
【0017】
前輪用アーム23はピン51で車体フレーム2側に取付けられているとともに、差込みピン52を差し替えることにより取付け角を変更できる機構となっている。53…(…は複数を示す。以下同じ。)はピン孔であり、54はプレートである。
同様に、補助輪用アーム24はピン55で第2ハウジング12側に取付けられているとともに、差込みピン56を差し替えることにより取付け角を変更できる機構となっている。57はプレートである。
また、ハンドル61は車体フレーム2の後部にピン62で揺動可能に取付けられ、差込みピン63を差し替えることにより取付け角を変更できる機構となっている。64…はピン孔であり、65はサポートである。
【0018】
なお、上記揺動管5を廃止し、車体フレーム2にブラケットを介して第1ハウジング11を直接的に取付けもよいが、本実施例では第1ハウジング11もある程度揺動可能にした。また、カッタハウジング10は車体フレーム2に取付けられる構成であればよく、吊り下げる構成に限らず、例えば載置するものでもよい。
【0019】
図3は本発明に係る草刈機の揺動姿勢を示す図(正面視)であり、第1ハウジング11にヒンジ13を介して第2ハウジング12が揺動自在に連結されていることを示す。
なお、67は前輪3を跨ぐパイプ状の前輪ガード部材である。
【0020】
以上に述べた草刈機の作用を図2及び図3に基づき説明する。
図2に示す姿勢の草刈機1は、斜面刃22が平面刃21と平行(面一)であるところの非揺動姿勢をしており、農道走行及び広い平坦面の草刈に適している。この際、図示しないチェーン等を使用して第2ハウジング12を持上げることにより、補助輪25を地面から浮せることもできる。
【0021】
図3に示す姿勢の草刈機1は、畦70の上面71に平面刃21が平行とされ、斜面72に倣って第2ハウジング12並びに斜面刃22が傾斜した姿勢であり、この姿勢で、平面刃21で畦70の上面71の草を刈り、斜面刃22で斜面72の草を刈る。
【0022】
ところで、上述したように、斜面72の草の刈り残しをなくするには、畦70の斜面72と斜面刃22との間隔を一定にすればよい。そのためには、草刈機1を畦70の角73に沿って走行させる必要があり、作業者は操縦の目安となる前輪3と畦70の角73との間隔が一定になるように操縦するが、この図に示すように前輪3を角73にできるだけ近づける方が間隔を一定にしやすい。
この場合、前輪3を畦70の角73に近づけても、走行車輪としての後輪4は角73から離れた位置を通る。このため、ガイド車輪としての前輪3だけを畦70の上面71から脱輪しないように操縦すればよく、作業者の負担が軽減される。
【0023】
また、前輪3で受ける重量と後輪4で受ける重量との比率が約1:4であり、前輪3で受ける重量が大幅に軽いので操縦性が高まり、前輪3を畦70の角73に沿って走行させることが容易である。
更に、斜面刃22が車体フレーム2の走行方向軸心Aから畦70の斜面72側に大きくオフセットし、且つ傾斜した姿勢であり、草刈機1の左右の重量バランスが偏りがちであるが、前輪3も同方向にオフセットしているので重量バランスが偏らず、直進走行性が高まる。
【0024】
なお、上記実施例において草刈機1は、2つの刈刃(平面刃21及び斜面刃22)を配置した二面刈り草刈機の構成に限定されず、例えば、単一の刈刃を配置した一面刈り草刈機の構成にも適用できる。
また、刈刃は少なくとも1つが、後輪4を通る車体フレーム2の走行方向軸心Aからオフセットした構成であればよい。
【0025】
【発明の効果】
本発明は上記構成により次の効果を発揮する。
請求項1の草刈機は、後輪を通る車体フレームの走行方向軸心から一方に平面刃及び斜面刃をオフセットさせた草刈機において、走行方向軸心に対して、平面刃よりも斜面刃を大きくオフセットさせ、前輪を斜面刃と同方向にオフセットさせたことにより、草刈機を畦の角に沿って走行する場合に、ハンドル操作のガイドとなる前輪だけを、畦の上面において畦の角に近づけることができるので、前・後輪が畦の上面から脱輪する恐れがなく作業者の負担を軽減できる。また、草刈機の左右の重量バランスをとるのに特別の部材を設けることなく、直進走行性を高めることができる。
【0026】
請求項2の草刈機は、草刈機の後輪側を前輪側よりも重くしたことにより、ハンドル操作のガイドとなる前輪が軽くなり、操縦性が良い。
【図面の簡単な説明】
【図1】本発明に係る草刈機の平面図
【図2】本発明に係る草刈機の側面図(要部)
【図3】本発明に係る草刈機の揺動姿勢を示す図(正面視)
【符号の説明】
1…草刈機、2…車体フレーム、3…前輪、4…後輪、7…エンジン、10…カッタハウジング、11…第1ハウジング、12…第2ハウジング、13…ヒンジ、21…刈刃(平面刃)、22…刈刃(斜面刃)、25…補助輪、70…畦、71…上面、72…斜面、73…角、A…車体フレームの走行方向軸心、B…、前輪の輪幅中心、L…オフセット寸法。
[0001]
[Industrial applications]
The present invention relates to an improvement of a mower.
[0002]
[Prior art]
As a measure to reduce the labor for rice cultivation, attempts have been made to replace mowing of ridges with human power instead of mechanical power. For example, there is Japanese Patent Application Laid-Open No. Hei 6-276825, entitled "Mowing Machine and Angle Adjuster and Swing Controller". According to FIGS. 1 and 5, there is provided a double-side mowing mower in which a cutter base 2 is mounted on a frame F (corresponding to a body frame), and a variable cutter base 3 is hingedly connected to the cutter base 2. A rotary blade 43 (corresponding to a plane blade) for cutting the upper surface of a ridge is stored in the base 2, and a rotary blade 43a (corresponding to a slope blade) for cutting the slope of the ridge is stored in the variable cutter base 3.
That is, the frame F includes guide wheels 21 (corresponding to front wheels) and traveling wheels 10 (corresponding to rear wheels), and rotating blades 43 and 43a between the guide wheels 21 and the traveling wheels 10. In this configuration, the rotary blade 43a is offset to one side from the direction axis. The variable cutter base 3 is provided with guide wheels 31.
[0003]
[Problems to be solved by the invention]
In general, when mowing the upper surface of the ridge and the slope at the same time with a mowing machine, the gap between the slope of the ridge and the rotary blade 43a may be made constant in order to eliminate uncut leaves. For this purpose, it is necessary to make the mower run along the corner of the ridge, and the operator operates the guide wheel 21 as a guide for operation so that the distance between the corner of the ridge and the guide wheel 21 is constant. It is easier to make the distance constant as close as possible to the corner of the ridge. However, when the guide wheel 21 is brought closer to the corner of the furrow, the traveling wheel 10 also comes closer, so that there is a greater danger of falling off from the upper surface of the furrow. Since the driver must operate the vehicle in such a way, the burden on the operator becomes extremely large.
In particular, in the configuration in which the rotary blade 43a is offset from the axis of the traveling direction of the frame F to the slope side of the ridge as in the above-described conventional technique, it is possible to cause the mower to travel straight when the left and right weight balance is uneven. It is not easy, and the burden on the operator is further increased.
On the other hand, when the cutting blade is offset from the running direction axis of the vehicle body frame in both the single-sided mowing machine and the double-sided mowing machine, a sufficient left and right weight balance of the mowing machine is provided to improve the straight traveling performance. Consideration such as is necessary.
[0004]
SUMMARY OF THE INVENTION It is an object of the present invention to: (1) reduce the burden on a worker when a mower is run along a corner of a ridge without the front and rear wheels stepping off the upper surface of the ridge; It is an object of the present invention to improve the straight running performance without providing a special member for maintaining the right and left weight balance.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a double-sided mowing machine in which a plane blade for cutting grass on the upper surface of a ridge and a slope blade for cutting grass on a slope of a ridge are arranged at right and left distances, and the body frame is provided. A mowing machine comprising two front and rear wheels and the flat blade between the front and rear wheels, wherein the flat blade and the slope blade are offset to one side from the running direction axis of the body frame passing through the rear wheel. At
With respect to the running direction axis, than the planar blade is largely offset the slope edge, the front wheel Rukoto is offset in the same direction as the slope edge, the front wheels in the upper surface of the ridge top surface and a slope of the ridge Characterized in that the vehicle is run close to the corner of the vehicle.
[0006]
Preferably, the rear wheel side of the mower is heavier than the front wheel side.
[0007]
[Action]
When the mower is running along the corner of the ridge, only the front wheel, which guides the steering wheel, can be close to the corner of the ridge, so there is no risk of the front and rear wheels coming off the upper surface of the ridge. Burden is reduced. In addition, straight running performance is improved.
[0008]
By making the rear wheel side of the mower heavier than the front wheel side, the front wheels serving as guides for steering operation become lighter, and the maneuverability is improved.
[0009]
【Example】
An embodiment of the present invention will be described below with reference to the accompanying drawings. Note that “front”, “rear”, “left”, “right”, “up”, and “down” follow directions viewed from a mower operator. Also, the drawings should be viewed in the direction of reference numerals.
FIG. 1 is a plan view of a mower according to the present invention. The mower 1 has a front wheel 3 at a front part and a rear wheel 4 at a rear part of a pipe-shaped body frame 2. The swinging tube 5 is fitted, the engine 7 is mounted on the swinging tube 5 and the cutter housing 10 is suspended, and the plane blade 21 and the inclined blade 22 are separated in the cutter housing 10 in the front-back and left-right directions. This is a configuration of a two-side mowing mower arranged in a vertical direction.
[0010]
The cutter housing 10 is formed by connecting a first housing 11 as a fixed housing attached to the vehicle body frame 2 and a second housing 12 as a swinging housing by a hinge 13, and the first housing 11 is flat. The second housing 12 houses the bevel blade 22. Reference numeral 14 denotes a swing axis passing through the hinge 13.
That is, the mower 1 offsets the plane blade 21 and the slope blade 22 to one side (in this embodiment, the left side) from the traveling direction axis A of the body frame 2 passing through the center of the width of the rear wheel 4, and the offset dimension in the same direction. The wheel width center B of the front wheel 3 is also offset by L, and the engine 7 is offset to the other (right side in this embodiment). The plane blade 21 is slightly offset from the axis A in the traveling direction.
[0011]
In this case, the front wheel 3 is a guide wheel serving as a guide for operation when the mower 1 is driven, and is composed of a narrow tire. The rear wheel 4 is a traveling wheel for self-propelling the mower 1 and is a wide tire. Consists of
Specifically, the wheel width of the rear wheel 4 is set to be wider than the front wheel 3. For example, the ratio of the wheel width of the front wheel 3 (about 35 mm) to the wheel width of the rear wheel 4 (about 100 mm) is about 1: 3. is there. The offset dimension L of the front wheel 3 is about 35 to 40 mm. For this reason, the left side surface of the front wheel 3 and the left side surface of the rear wheel 4 substantially match.
Further, the mower 1 is set so that the rear wheel 4 side is heavier than the front wheel 3 side. For example, the weight distribution of the mower 1 is such that the ratio of the weight received by the front wheel 3 to the weight received by the rear wheel 4 is about 1: 4. Is set to
[0012]
The front wheel 3 is attached to a front wheel arm 23 extending from a front portion of the body frame 2. An auxiliary wheel arm 24 extends from a left front portion of the second housing 12, and an auxiliary wheel 25 for defining the height of the second housing 12 is attached to a front portion of the auxiliary wheel arm 24.
[0013]
The output shaft 7 a of the engine 7 is directed downward, and the flat blade 21 and the inclined blade 22 are rotated via a belt transmission mechanism 30.
The belt transmission mechanism 30 includes a first belt 31, a second belt 32, and pulleys stretched up and down two steps. The first belt 31 drives the flat blade 21, and the second belt 32 drives the inclined blade 22. Things.
That is, the first belt 31 is wound around the first pulley 33 attached to the output shaft 7a of the engine 7 and the second pulley 34 for driving the flat blade shaft 21a.
[0014]
Reference numeral 42 denotes a swinging lever locked to the first housing 11. The swinging lever 42 has a tensioner roll 43 formed at one end and a brake shoe 44 formed at the other end. When the swing lever 42 swings counterclockwise in the figure, the first belt 31 is tightened, transmitting the power of the first pulley 33 to the second pulley 34, and driving the flat blade shaft 21a. I have. Conversely, if the swing lever 42 is swung clockwise in the figure, the first belt 31 is slackened, the power transmission is weakened, and the brake shoe 42 can brake the first belt 31.
In the above manner, the operation / stop of the plane blade 21 can be arbitrarily performed during the operation of the engine and the traveling.
[0015]
The second belt 32 includes an idler pulley 35 (hereinafter, referred to as a “third pulley 35”) integrally formed below the second pulley 34, a fourth pulley 36 for driving the inclined blade shaft 22 a, and the swing axis 14. , Three idler pulleys 37 to 39 (hereinafter, referred to as “fifth, sixth, and seventh pulleys 37 to 39”) arranged substantially in a row in front and rear, and an idler integrally formed below the fifth pulley 37. It is wound around a pulley 41 (hereinafter referred to as an “eighth pulley 41”).
In terms of arrangement, the rear fifth pulley 37 (including the eighth pulley 41) is pivotally supported by the first housing 11, and the front inclined sixth pulley 38 and the central seventh pulley 39 are connected to the second housing 12 It is pivoted. Accordingly, the second belt 32 is wound around the third pulley 35, the fifth pulley 37, the sixth pulley 38, the fourth pulley 36, the seventh pulley 39, the eighth pulley 41, and the third pulley 35.
[0016]
FIG. 2 is a side view (principal part) of the mower according to the present invention, in which an oscillating tube 5 is mounted on a body frame 2, and an engine 7 is mounted on the oscillating tube 5 via a mount plate 6. Shows that the first housing 11 is suspended from the swing tube 5 via the hanger brackets 8, 8.
The engine 7 drives a continuously variable transmission 27 via a universal shaft 26 in addition to the two cutting blades (the plane blade 21 and the sloped blade 22). 4 is driven.
[0017]
The front wheel arm 23 is mounted on the vehicle body frame 2 side with a pin 51 and has a mechanism that can change the mounting angle by replacing the insertion pin 52. Numerals 53 (... indicate plural numbers, the same applies hereinafter) are pin holes, and 54 is a plate.
Similarly, the auxiliary wheel arm 24 is mounted on the second housing 12 side with a pin 55, and has a mechanism that can change the mounting angle by replacing the insertion pin 56. 57 is a plate.
The handle 61 is swingably attached to the rear portion of the vehicle body frame 2 with a pin 62, and has a mechanism capable of changing an attachment angle by replacing the insertion pin 63. 64 are pin holes, and 65 is a support.
[0018]
Note that the swing tube 5 may be omitted and the first housing 11 may be directly attached to the vehicle body frame 2 via a bracket, but in the present embodiment, the first housing 11 is also allowed to swing to some extent. Further, the cutter housing 10 may have any configuration as long as it can be attached to the vehicle body frame 2, and is not limited to a configuration in which the cutter housing 10 is hung, and may be, for example, mounted.
[0019]
FIG. 3 is a view (a front view) showing a swing posture of the mower according to the present invention, and shows that the second housing 12 is swingably connected to the first housing 11 via the hinge 13.
Reference numeral 67 denotes a pipe-shaped front wheel guard member that straddles the front wheel 3.
[0020]
The operation of the mower described above will be described with reference to FIGS.
The mowing machine 1 in the posture shown in FIG. 2 has a non-swinging posture in which the slope blade 22 is parallel to the plane blade 21 (flat), and is suitable for running on an agricultural road and mowing a wide flat surface. At this time, by lifting the second housing 12 using a chain or the like (not shown), the auxiliary wheels 25 can be lifted from the ground.
[0021]
The mowing machine 1 in the posture shown in FIG. 3 is a posture in which the flat blade 21 is parallel to the upper surface 71 of the ridge 70, and the second housing 12 and the inclined blade 22 are inclined along the inclined surface 72. The blade 21 cuts the grass on the upper surface 71 of the ridge 70, and the slope blade 22 cuts the grass on the slope 72.
[0022]
By the way, as described above, in order to eliminate uncut grass on the slope 72, the interval between the slope 72 of the ridge 70 and the slope blade 22 may be made constant. For this purpose, it is necessary to drive the mowing machine 1 along the corner 73 of the ridge 70, and the operator operates such that the distance between the front wheel 3 and the corner 73 of the ridge 70, which is a guide for the operation, is constant. However, as shown in this figure, it is easier to make the interval constant if the front wheel 3 is as close to the corner 73 as possible.
In this case, even if the front wheel 3 approaches the corner 73 of the ridge 70, the rear wheel 4 as a running wheel passes through a position far from the corner 73. Therefore, only the front wheel 3 as a guide wheel needs to be operated so as not to be removed from the upper surface 71 of the ridge 70, and the burden on the operator is reduced.
[0023]
In addition, the ratio of the weight received by the front wheel 3 to the weight received by the rear wheel 4 is about 1: 4, and the weight received by the front wheel 3 is significantly light, so that the maneuverability is enhanced and the front wheel 3 is formed along the corner 73 of the ridge 70. It is easy to run.
Furthermore, the slope blade 22 is largely offset from the axis A in the traveling direction of the body frame 2 toward the slope 72 of the ridge 70 and is inclined, and the right and left weight balance of the mower 1 tends to be biased. 3 is also offset in the same direction, so that the weight balance is not biased and the straight running performance is enhanced.
[0024]
In addition, in the said Example, the mower 1 is not limited to the structure of the double-side mowing machine in which two cutting blades (the plane blade 21 and the slope blade 22) are arrange | positioned, For example, one surface in which the single cutting blade was arrange | positioned. It can also be applied to the configuration of a mower.
Further, at least one of the cutting blades may be configured to be offset from the traveling direction axis A of the vehicle body frame 2 passing through the rear wheel 4.
[0025]
【The invention's effect】
The present invention has the following effects by the above configuration.
Mowing machine according to claim 1, in mowing machine is offset plane blade and slopes blades in one of the travel direction axis of the body frame through the rear wheels, the running direction axis, a slope edge than flat blade When the mower is running along the corner of the ridge, only the front wheel, which guides the steering wheel , is placed at the corner of the ridge on the upper surface of the ridge by offsetting the front wheel in the same direction as the slope blade. Since it can be approached, there is no possibility that the front and rear wheels will come off from the upper surface of the ridge, and the burden on the operator can be reduced. Further, without providing a special member for taking the weight balance between the left and right of the mower, high Mel is Ru can a straight traveling property.
[0026]
According to the mowing machine of the second aspect, the rear wheel side of the mowing machine is made heavier than the front wheel side, so that the front wheel serving as a guide for operating the steering wheel is lightened and the maneuverability is good.
[Brief description of the drawings]
FIG. 1 is a plan view of a mower according to the present invention. FIG. 2 is a side view (main part) of a mower according to the present invention.
FIG. 3 is a view showing a swinging posture of the mower according to the present invention (front view).
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... mowing machine, 2 ... body frame, 3 ... front wheel, 4 ... rear wheel, 7 ... engine, 10 ... cutter housing, 11 ... 1st housing, 12 ... 2nd housing, 13 ... hinge, 21 ... cutting blade (plane Blades), 22 ... cutting blades (slope blades), 25 ... auxiliary wheels, 70 ... ridges, 71 ... top surface, 72 ... slopes, 73 ... corners, A ... axis of the body frame traveling direction, B ..., front wheel width Center, L ... Offset dimensions.

Claims (2)

畦の上面の草を刈る平面刃及び畦の斜面の草を刈る斜面刃を左右に離間して配置した二面刈り草刈機であって、車体フレームに前輪と後輪との2輪と前・後輪の間の上記平面刃とを備え、後輪を通る車体フレームの走行方向軸心から一方に上記平面刃及び上記斜面刃をオフセットさせた草刈機において、
上記走行方向軸心に対して、上記平面刃よりも上記斜面刃を大きくオフセットさせ、上記前輪を上記斜面刃と同方向にオフセットさせることで、畦の上面において前輪を畦の上面と斜面との角に近づけて走行させるように構成したことを特徴とする草刈機。
A two-sided mowing machine in which a flat blade for cutting grass on the upper surface of a ridge and a slope blade for cutting grass on a slope of a ridge are arranged at right and left sides, and two wheels, a front wheel and a rear wheel , are mounted on a body frame. A mowing machine comprising the flat blade between the rear wheels and offsetting the flat blade and the slope blade to one side from the running direction axis of the body frame passing through the rear wheel;
With respect to the running direction axis, than the planar blade is largely offset the slope edge, the front wheel Rukoto is offset in the same direction as the slope edge, the front wheels in the upper surface of the ridge top surface and a slope of the ridge A mowing machine characterized in that the mowing machine is configured to run close to a corner of the mowing machine.
上記草刈機は後輪側を前輪側よりも重くしたことを特徴とする請求項1記載の草刈機。The mowing machine according to claim 1, wherein the mowing machine has a rear wheel side heavier than a front wheel side.
JP13065395A 1995-05-29 1995-05-29 Mower Expired - Lifetime JP3575711B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13065395A JP3575711B2 (en) 1995-05-29 1995-05-29 Mower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13065395A JP3575711B2 (en) 1995-05-29 1995-05-29 Mower

Publications (2)

Publication Number Publication Date
JPH08322361A JPH08322361A (en) 1996-12-10
JP3575711B2 true JP3575711B2 (en) 2004-10-13

Family

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Publication number Priority date Publication date Assignee Title
JP4567384B2 (en) * 2004-06-25 2010-10-20 株式会社オーレック Walking type mower and power transmission unit used therefor
JP6247101B2 (en) * 2014-01-10 2017-12-13 株式会社クボタ Walking mower

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