JP4542487B2 - Grass mower - Google Patents

Grass mower Download PDF

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JP4542487B2
JP4542487B2 JP2005265337A JP2005265337A JP4542487B2 JP 4542487 B2 JP4542487 B2 JP 4542487B2 JP 2005265337 A JP2005265337 A JP 2005265337A JP 2005265337 A JP2005265337 A JP 2005265337A JP 4542487 B2 JP4542487 B2 JP 4542487B2
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grass
bottom plate
mower
container
container portion
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JP2007074957A (en
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宏樹 永井
一明 黒原
勝彦 上村
信行 山下
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Kubota Corp
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Kubota Corp
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Priority to US11/508,122 priority patent/US7565790B2/en
Priority to FR0653692A priority patent/FR2890525B1/en
Priority to FR0752961A priority patent/FR2894429B1/en
Publication of JP2007074957A publication Critical patent/JP2007074957A/en
Priority to US12/493,327 priority patent/US7905080B2/en
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Description

本発明は、乗用走行機体に装備したモーアからの刈草をダクトで案内して、機体後部に配備した集草容器に投入回収するよう構成した草刈機の集草装置に関する。   The present invention relates to a grass collecting apparatus for a grass mower configured to guide mowing grass from a mower equipped on a passenger traveling machine body with a duct and to input and collect the grass in a grass collection container provided at the rear part of the machine body.

草刈機の集草装置としては、集草容器を後向きに開放された前側容器部と前向きに開放された後側容器部とで構成し、前側容器部を機体側に固定するとともに、後側容器部を前側容器部の後方上部に設けた支点周りに振り上げ揺動自在に支持したものが知られている(例えば、特許文献1参照)。   As the grass collecting device of the mower, the grass collecting container is composed of a front container part opened rearward and a rear container part opened forward, the front container part is fixed to the machine body side, and the rear container There is known a device in which the portion is supported so as to swing up and swing around a fulcrum provided at the upper rear portion of the front container portion (see, for example, Patent Document 1).

特開平5−15224号公報JP-A-5-15224

集草容器を前後2分割構造にして後側容器部だけを振り上げ開放する構造は、集草容器全体を振り上げ開放する構造に比べて、振り上げ操作荷重が小さくてすむ特徴を有するものである。   The structure in which the grass collecting container is divided into two front and rear parts and the rear container part is swung up and opened has a feature that the swinging operation load is smaller than the structure in which the whole grass collecting container is swung up and opened.

その反面、固定される前側容器部の容量が制約される問題がある。つまり、前側容器部を単純な矩形の箱状に構成すると、満杯になった集草容器から刈草を排出する場合、後側容器部を振り上げ開放することで、後方に大きき開放された前側容器部に収容された刈草の多くは崩れ落ちて排出されるが、前側容器部の底部には刈草が残されることになる。そこで、特許文献1に示される集草装置においては、前側容器部の底板を前上がりに大きく傾斜させ、前側容器部に収容された刈草を残らず落下排出できるようにしている。
従って、前側容器部は底部が斜めに切り上げられた形状となって、その分、前側容器部の容量が小さくなってしまう。
On the other hand, there is a problem that the capacity of the front container portion to be fixed is restricted. In other words, when the front container part is configured in a simple rectangular box shape, when cutting grass from a full grass collection container, the rear container part is swung open to open a large rear container. Most of the cut grass accommodated in the section collapses and is discharged, but the cut grass remains at the bottom of the front container portion. Therefore, in the grass collecting apparatus shown in Patent Document 1, the bottom plate of the front container portion is greatly inclined forwardly upward so that all the cut grass stored in the front container portion can be dropped and discharged.
Accordingly, the front container portion has a shape with the bottom portion being obliquely rounded up, and the capacity of the front container portion is reduced accordingly.

本発明は、このような点に着目してなされたものであって、前後2分割構造の特徴を活かしながら、集草容量を大きくできるようにすることを主たる目的としている。
ている。
The present invention has been made paying attention to such points, and has as its main purpose to increase the grass collection capacity while making use of the characteristics of the front and rear divided structure.
ing.

第1の発明は、乗用走行機体に装備したモーアからの刈草をダクトで案内して、機体後部に配備した集草容器に投入回収するよう構成するとともに、前記集草容器を後向きに開放された前側容器部と前向きに開放された後側容器部とで構成し、前側容器部を機体側に固定するとともに、後側容器部を前側容器部の後方上部に設けた支点周りに振り上げ揺動自在に支持した草刈機の集草装置において、
前記ダクトの後部底面を形成する幅狭の底板と前記前側容器部の底面を形成する幅広の底板とを一体化した平面形状T形の底板部材を設け、この底板部材を、前記前側容器部の底面側に位置する左右向きの支点周りに上下揺動操作可能に構成してあることを特徴とする。
The first invention is configured to guide the mowing grass from the mower equipped on the passenger traveling aircraft with a duct and to collect and collect the grass in the grass collection container provided at the rear of the aircraft, and the grass collection container is opened rearward. Consists of a front container part and a rear container part opened forward. The front container part is fixed to the fuselage, and the rear container part can be swung up and swung around a fulcrum provided at the rear upper part of the front container part. In the grass collector of the mower supported by
A flat T-shaped bottom plate member is provided in which a narrow bottom plate that forms the rear bottom surface of the duct and a wide bottom plate that forms the bottom surface of the front container portion are provided, and the bottom plate member is connected to the front container portion. It is configured to be capable of swinging up and down around a left and right fulcrum located on the bottom side .

上記構成によると、満杯になった集草容器から刈草を排出する場合、後側容器部を振り上げ開放することによって前側容器部に収容された刈草の多くも崩れ落ちて排出されるが、前側容器部の底板が集草姿勢のままであると、刈草の一部が底板で受け止められて残留する。そこで、底板部材を前上がり方向に揺動して前側容器部の底板を傾斜させることで前側容器部に収容された刈草を残らず落下排出することができる。また、底板部材の前上がり揺動に伴ってダクトの底板も傾斜して、ダクト後部に溜まった刈草が底板部材に沿って流下排出される。つまり、集草容器の容積のみならずダクト後部の容積までも回収容積とすることができる。   According to the above configuration, when discharging grass from a full grass collection container, most of the cut grass accommodated in the front container part is collapsed and discharged by swinging up and opening the rear container part. If the bottom plate remains in the grass collecting position, a part of the mowing grass is received by the bottom plate and remains. Therefore, by swinging the bottom plate member in the forward upward direction and tilting the bottom plate of the front container portion, it is possible to drop and discharge all the cut grass accommodated in the front container portion. In addition, the bottom plate of the duct is inclined as the bottom plate member swings upward, and the cut grass collected at the rear of the duct flows down and is discharged along the bottom plate member. That is, not only the volume of the grass collection container but also the volume at the rear of the duct can be set as the collection volume.

従って、第1の発明によると、後側容器部を軽快に振り上げて刈草の排出を行うことができる前後2分割構造の特徴を活かしながら、集草容量を大きくすることができる。   Therefore, according to 1st invention, grass collection capacity | capacitance can be enlarged, making use of the characteristic of the front-and-rear 2-part dividing structure which can swing up a back side container part lightly and can discharge a mowing grass.

第2の発明は、上記第1の発明において、前記底板部材の、前記前側容器部の底面側に位置する左右向きの支点を前記前側容器部の底板における前端付近に設けてあるものである。
According to a second invention, in the first invention, a left and right fulcrum of the bottom plate member located on the bottom surface side of the front container portion is provided near the front end of the bottom plate of the front container portion.

上記構成によると、底板部材の揺動支点を左右に長く構成することができ、底板部材を左右に振れることなく精度良く揺動させることができる。   According to the said structure, the rocking | fluctuation fulcrum of a baseplate member can be comprised long left and right, and a baseplate member can be rock | fluctuated accurately, without swinging right and left.

第3の発明は、上記第1または2の発明において、前記モーアの刈草排出口と前記ダクトとの接続部位近傍に、前記刈草排出口の底面側に位置する左右向きの支点周り上下揺動操作可能な底板を設けてあるものである。
According to a third aspect of the present invention, in the first or second aspect of the present invention, in the vicinity of a connection portion between the mower's mowing grass outlet and the duct, it swings up and down around a left and right fulcrum located on the bottom side of the mowing grass outlet. An operable bottom plate is provided.

上記構成によると、モーアの刈草排出口とダクトとの接続部位で刈草の詰まりが発生した場合、底板を揺動することで刈草を崩して短時間で排出することができ、濡れた草地での作業のように、詰まりが発生しやすい条件下でも詰まり除去に多くの時間をとられることなく能率よく草刈作業を行うことができる。   According to the above configuration, when clogging of mowing grass occurs at the connection site between the mower's mowing grass outlet and the duct, the mowing grass can be broken and discharged in a short time by swinging the bottom plate. As in the work, even under conditions where clogging is likely to occur, the mowing work can be performed efficiently without taking much time for clogging removal.

第4の発明は、上記第3の発明において、
前記ダクトの前部における横側部に刈草押出し排出用の切欠き部を形成してあるものである。
According to a fourth invention, in the third invention,
A cut-out portion for extruding cut grass is formed on the lateral side of the front portion of the duct.

上記構成によると、刈草が多量に詰まった場合、底板の揺動によって押された刈草の一部が切欠き部から強制的に押し出されて詰まりが崩されることになり、何回か揺動操作することで底板が大きく揺動操作できるようになり、詰まった刈草を短時間で残らず排出することができる。   According to the above configuration, if a large amount of mowing grass is jammed, a part of the mowing grass pushed by the rocking of the bottom plate will be forced out of the notch and the clogging will be broken. By doing so, the bottom plate can be greatly swung, and the clogged grass can be discharged in a short time.

図1に、本発明に係る集草装置を備えた草刈機の左側面が、また、図2に、その平面がそれぞれ示されている。この草刈機は、前輪1および後輪2を備えた四輪駆動型の乗用走行機体3の下部に、前リンク4aと後リンク4bからなる平行四連リンク構造の昇降リンク機構4を介してモーア5が昇降自在に連結された構造となっており、モーア5で刈り取った刈草をダクト6を介して機体後方に案内して集草容器7に投入回収する集草装置Aが機体後部に装備されている。   FIG. 1 shows a left side surface of a mower equipped with a grass collecting apparatus according to the present invention, and FIG. 2 shows a plane surface thereof. This mower is mowered at the lower part of a four-wheel drive type riding traveling machine body 3 having a front wheel 1 and a rear wheel 2 via a lifting link mechanism 4 having a parallel four-link structure composed of a front link 4a and a rear link 4b. 5 is connected to be movable up and down, and a grass collecting device A for guiding the cut grass cut by the mower 5 to the rear of the machine through the duct 6 and charging and collecting it in the grass collection container 7 is provided at the rear of the machine. ing.

乗用走行機体3における主フレーム8の前部上方にエンジン9が連結されるとともに、左右の前輪1を操向自在に装備した前車軸ケース10が主フレーム8の前部下方に連結され、後輪2を備えたミッションケース11が主フレーム8の後部に連結されている。エンジン9からの動力はミッションケース11に軸伝達された後、ミッションケース11の背面に連結された油圧式無段変速装置13に伝達される。油圧式無段変速装置13の変速操作部は、乗用走行機体3の運転部足元に配備された変速ペダル14にリンク連係されており、変速ペダル14の前方への踏み込み操作によって前進での無段変速がなされ、変速ペダル14の後方への踏み込み操作によって後進での無段変速がなされる。油圧式無段変速装置13の変速動力は一旦ミッションケース11に入力されて2系統に分岐され、その一方の分岐動力が後輪2に伝達されるとともに、他方の分岐動力が伝動軸15を介して前車軸ケース10に伝達される。   An engine 9 is connected to the upper part of the front portion of the main frame 8 in the passenger traveling body 3, and a front axle case 10 equipped with left and right front wheels 1 is steerably connected to the lower portion of the front portion of the main frame 8. 2 is connected to the rear portion of the main frame 8. Power from the engine 9 is transmitted to the transmission case 11 and then transmitted to the hydraulic continuously variable transmission 13 connected to the rear surface of the transmission case 11. The speed change operation part of the hydraulic continuously variable transmission 13 is linked to a speed change pedal 14 provided at the foot of the driving part of the riding traveling machine body 3, and the stepless operation in the forward direction is performed by depressing the speed change pedal 14 forward. A speed change is performed, and a stepless shift in the reverse direction is performed by an operation of depressing the speed change pedal 14 backward. The transmission power of the hydraulic continuously variable transmission 13 is temporarily input to the mission case 11 and branched into two systems. One branch power is transmitted to the rear wheel 2 and the other branch power is transmitted via the transmission shaft 15. Is transmitted to the front axle case 10.

モーア5は、デッキ16の中央および左右に縦軸駆動される3枚のバーブレード17を装着して構成されたものであり、切断された刈草が各バーブレード17で生起された風によって搬送合流され、デッキ16における後部上面の左右中間部位にトンネル状に突設された刈草排出口18から後方上方に案内送出されるようになっている。デッキ16の上面中央には入力ケース19が設けられており、ミッションケース11の前面から取り出された作業用動力が伝動軸20を介して入力ケース19に伝達された後、各バーブレート17にベルト伝達されるようになっている。   The mower 5 is configured by mounting three bar blades 17 that are driven vertically on the center and left and right of the deck 16, and the cut grass is conveyed and joined by the wind generated by each bar blade 17. In addition, the deck 16 is guided and sent rearward and upward from a mowing grass discharge port 18 projecting in a tunnel shape at the left and right intermediate portions on the upper surface of the rear portion. An input case 19 is provided in the center of the top surface of the deck 16, and the working power taken out from the front surface of the transmission case 11 is transmitted to the input case 19 via the transmission shaft 20, and then belted to each barbrate 17. It is to be transmitted.

図11に示すように、ダクト6は下向きに開放されたトンネル状に形成されて機体下部に連結固定されており、ダクト6の前部がモーア5の昇降を許容するように刈草排出口18に連通接続されるとともに、ダクト6の後端が集草容器7の前面に連通接続されている。なお、モーア5から後方上方に向けて勢いよく送出された刈草は刈草排出口18およびダクト6の天井部に沿って後方に流動する。   As shown in FIG. 11, the duct 6 is formed in a tunnel shape opened downward and is connected and fixed to the lower part of the fuselage, and the front part of the duct 6 is provided in the grass cutting outlet 18 so as to allow the mower 5 to move up and down. In addition to the communication connection, the rear end of the duct 6 is connected to the front surface of the grass collection container 7. Note that the mowing grass sent out from the mower 5 toward the upper rear side flows backward along the mowing grass outlet 18 and the ceiling of the duct 6.

図3に示すように、集草容器7は、前側容器部7Aと後側容器部7Bとからなる前後2分割構造に構成されており、前側容器部7Aが主フレーム8の後端部に連結固定されるのに対して、後側容器部7Bは、前側容器部7Aにおける上部後端近くに左右向きの支点p周りに上下揺動可能に連結されている。   As shown in FIG. 3, the grass collection container 7 is configured in a front-and-rear split structure composed of a front container part 7A and a rear container part 7B, and the front container part 7A is connected to the rear end part of the main frame 8. On the other hand, the rear container part 7B is connected to the vicinity of the upper rear end of the front container part 7A so as to be swingable up and down around a left and right fulcrum p.

図8に示すように、前側容器部7Aは板金構造で後向きに開放された箱状に構成されており、その前壁面の中央下部に、ダクト6の後端部に連通接続される矩形の刈草投入口21が形成されている。前側容器部7Aの左右側壁面には打抜き鋼板あるいは金網などを貼り付けた通気部22が形成されており、刈草投入口21から吹き込まれた搬送風が通気部22から抜け出ることで刈草が前側容器部7A内の左右にまで充填されるようになっている。   As shown in FIG. 8, the front container portion 7 </ b> A has a sheet metal structure and is configured in a box shape opened rearward, and a rectangular mowing grass connected to the rear end portion of the duct 6 at the center lower portion of the front wall surface thereof. An inlet 21 is formed. Ventilation portions 22 are formed on the left and right side wall surfaces of the front side container portion 7A, and a punched steel plate or a wire mesh is attached to the front container portion 7A. The portion 7A is filled to the left and right.

前側容器部7Aの底面を形成する前後に短く左右に幅広い底板23と、ダクト6の底面を形成する前後に長く左右に幅狭の底板24とが鋼板からなる平面形状T形の底板部材25で一体形成されるとともに、この底板部材25が、前側容器部7Aの底板23における前端付近に設定された左右向きの支点q周りに上下揺動可能に前側容器部7Aの下部に軸支されている。   A bottom plate member 25 having a planar shape T formed of a steel plate having a bottom plate 23 that is short before and after forming the bottom surface of the front container portion 7A and wide at the left and right and a bottom plate 24 that is long and narrow before and after forming the bottom surface of the duct 6 The bottom plate member 25 is integrally formed, and is pivotally supported by the lower portion of the front container portion 7A so as to be swingable up and down around a left and right fulcrum q set near the front end of the bottom plate 23 of the front container portion 7A. .

この底板部材25は、前後方向に略水平となる集草姿勢と前上がり傾斜する排出姿勢とに切換え揺動可能であり、図6に示すように、底板部材25が集草姿勢にある時は、後部の底板23の後端が後側容器部7Bにおける底面前端に近接するとともに、前部の底板24がダクト6の下部に沿って位置し、ダクト後部から集草容器7に亘る前後に長い底面が一連に形成される。図7に示すように、底板部材25が排出姿勢になると、前部の底板24がダクト6の内部において天井まで大きく振り上げられるとともに、後部の底板23が大きく後下がり傾斜される。   The bottom plate member 25 can be switched and swung between a grass collection posture that is substantially horizontal in the front-rear direction and a discharge posture that is inclined forward and tilted, and when the bottom plate member 25 is in the grass collection posture as shown in FIG. In addition, the rear end of the rear bottom plate 23 is close to the front end of the bottom surface of the rear container portion 7B, and the front bottom plate 24 is located along the lower portion of the duct 6 and is long before and after the duct rear portion and the grass collection container 7. A bottom surface is formed in series. As shown in FIG. 7, when the bottom plate member 25 is in the discharging posture, the front bottom plate 24 is greatly swung up to the ceiling inside the duct 6, and the rear bottom plate 23 is greatly lowered and inclined downward.

前側容器部7Aにおける右外側面には支点a周りに揺動可能な操作レバー26が備えられており、この操作レバー26と一体揺動する操作アーム27と、底板部材25と一体揺動する作動アーム28とがロッド29を介して連動連結されている。操作レバー26は乗用走行機体3における運転座席30の右脇に延出されており、運転座席30に着座した作業者が操作レバー26を揺動操作することで底板部材25を上下揺動させることができるようになっている。   An operation lever 26 that can swing around a fulcrum a is provided on the right outer surface of the front container portion 7A. An operation arm 27 that swings integrally with the operation lever 26 and an operation that swings integrally with the bottom plate member 25. The arm 28 is linked and connected via a rod 29. The operation lever 26 extends to the right side of the driver seat 30 in the passenger traveling body 3, and the operator seated on the driver seat 30 swings the bottom plate member 25 by swinging the operation lever 26. Can be done.

図6に示すように、後側容器部7Bは、金属丸パイプ材を箱形に組み立ててなる支持枠31の下面に鋼板からなる底板32を連結するとともに、上壁面、左右の側壁面、および、後壁面とを適度の大きさの目合いに織上げられた樹脂あるいは布製のシート材33を張り付けて、前面が開放された箱状に構成されている。後側容器部7Bの上部には、上壁面と適当間隔をもって上部カバー34が配備されており、刈草投入口21から刈草と共に吹き込まれた搬送風が通気可能なシート材33からなる上壁面、左右側壁面、および、後壁面から抜け出てゆくとともに、上壁面を通過した搬送風は上部カバー34で案内されて後壁面の上部から下方に向けて流動するようになっている。
As shown in FIG. 6, the rear container portion 7B connects a bottom plate 32 made of a steel plate to the lower surface of a support frame 31 formed by assembling a metal round pipe material into a box shape, and includes an upper wall surface, left and right side wall surfaces, and The rear wall is pasted with a sheet material 33 made of resin or cloth woven to an appropriate size, and is configured in a box shape with the front open. An upper cover 34 is provided at an upper portion of the rear container portion 7B with an appropriate distance from the upper wall surface, and an upper wall surface made of a sheet material 33 through which the conveying air blown together with the cut grass from the cut grass insertion port 21 can be vented. The conveying air that has passed through the upper wall surface and flows out from the side wall surface and the rear wall surface is guided by the upper cover 34 and flows downward from the upper portion of the rear wall surface.

後側容器部7Bは前側容器部7Aに対して支点p周りに上下揺動可能、かつ、脱着自在に支持されており、その揺動操作構造および脱着構造を以下に説明する。   The rear container portion 7B is supported so as to be swingable up and down around the fulcrum p with respect to the front container portion 7A, and is detachably supported. The swing operation structure and the detachment structure will be described below.

図8に示すように、前側容器部7Aにおける右側壁の後部上方箇所には後側容器部7Bの揺動支点pを構成する支点軸35が左右に貫通して固着されるとともに、前側容器部7Aにおける左側壁の後部上方箇所に、前記支点軸35と同芯に支点軸36が内向きに突設されている。他方、後側容器部7Bにおける支持枠31の左右前端上部には連結金具37がそれぞれ固定され、各連結金具37に形成された係合凹部38が右側の支点軸35の内向き突出部位、および、左側の支点軸36にそれぞれ上方から係合され、後側容器部7Bが左右方向に位置決めされた状態で支点軸35,36周り(支点p周り)に上下揺動可能に支持されている。   As shown in FIG. 8, a fulcrum shaft 35 that constitutes the swing fulcrum p of the rear container part 7B is fixed to the front container part 7A through the left and right at a position above the rear part of the right side wall. A fulcrum shaft 36 is provided so as to protrude inward and concentrically with the fulcrum shaft 35 at a position above the rear portion of the left side wall in 7A. On the other hand, connecting fittings 37 are respectively fixed to the upper portions of the left and right front ends of the support frame 31 in the rear container portion 7B, and the engaging recesses 38 formed in each connecting fitting 37 are inwardly protruding portions of the right fulcrum shaft 35, and The left fulcrum shaft 36 is engaged from above, and the rear container part 7B is supported so as to be swingable up and down around the fulcrum shafts 35 and 36 (around the fulcrum p) while being positioned in the left-right direction.

後側容器部7Bにおける前端下部には、横架された支持枠31の左右両端を横外方に延長してなる位置決めピン部31aが突設されるとともに、前側容器部7Aにおける左右側壁面の後端下部には前記位置決めピン部31aを接当支持する受止め段部39が形成されており、位置決めピン部31aが受止め段部39に接当支持されることで後側容器部7Bの前方開口端が前側容器部7Aの後方開口端に適正に接続された集草姿勢に安定保持されるようになっている。   Positioning pin portions 31a formed by extending the left and right ends of the horizontally supported support frame 31 laterally outward project from the lower portion of the front end of the rear container portion 7B, and the left and right side wall surfaces of the front container portion 7A A receiving step portion 39 that contacts and supports the positioning pin portion 31a is formed at the lower end of the rear end, and the positioning pin portion 31a is contacted and supported by the receiving step portion 39 so that the rear container portion 7B The front opening end is stably held in the grass collection posture appropriately connected to the rear opening end of the front container portion 7A.

前側容器部7Aにおける右側壁の外側においては、前記支点軸35の外向き突出部位に揺動可能に遊嵌支持された操作アーム41が配備されるとともに、この操作アーム41の遊端部には後向きの係合凹部42が形成されている。後側容器部7Bにおける支持枠31の左右前端部には、操作アーム41の係合凹部42に係脱可能な係合ピン43が横外方に向けて突設されている。   On the outer side of the right side wall of the front container portion 7A, an operation arm 41 that is swingably supported by an outward projecting portion of the fulcrum shaft 35 is provided, and a free end portion of the operation arm 41 is provided at the free end portion. A rearward engagement recess 42 is formed. Engagement pins 43 that can be engaged with and disengaged from the engagement recesses 42 of the operation arm 41 project from the left and right front ends of the support frame 31 in the rear container portion 7B.

操作アーム41には操作レバー44が装備されており、図4に示すように、操作レバー44を前方に揺動操作して操作アーム41を後方に振り上げ揺動することで、この操作アーム41に係合凹部42および係合ピン43を介して係合支持された後側容器部7Bが、下向きに開放された排出姿勢にまで振り上げ揺動されるのである。なお、操作アーム41と前側容器部7Aとの間には、操作アーム41を振り上げ方向に付勢するガススプリング45が架設されて、操作レバー44を操作する際の振り上げ操作荷重の軽減が図られている。
The operation arm 41 is equipped with an operation lever 44. As shown in FIG. 4, the operation lever 41 is swung forward and the operation arm 41 is swung back to swing. The rear container portion 7B engaged and supported via the engagement concave portion 42 and the engagement pin 43 is swung up and swung to a discharge posture opened downward. A gas spring 45 that urges the operation arm 41 in the swing-up direction is installed between the operation arm 41 and the front container portion 7A, so that the swing-up operation load when the operation lever 44 is operated can be reduced. ing.

前記操作レバー44は操作アーム41に対して伸縮自在に支持されている。つまり、操作アーム41の外側には上下方向に向かうボス部41aが固設され、このボス部41aに操作レバー44が上下にスライド伸縮自在に挿通保持されている。自由状態の操作レバー44は自重で下方スライド限界までスライド短縮され、このスライド短縮状態では、操作レバー44の握り部44aは運転座席15の背もたれ上端よりも低い位置にあり、機体操縦や後方監視の邪魔にならない高さに保持される。後側容器部7Bを振り上げ揺動して回収した刈草を排出する際には、握り部44aが運転座席30の背もたれ上端よりも高い位置となるように操作レバー44を上方にスライドさせて、長い操作レバー44にして使用する。なお、操作レバー44の上部に設けたストッパピン44cがボス部41aの上端に受止められて操作レバー44の下方スライドが制限され、操作レバー44の下端部に備えた大径ストッパ部44bがボス部41aの下端に接当することで操作レバー44の上方スライドが制限されるようになっている。また、前記操作アーム41の基部およびボス部41aは化粧カバー50で覆い隠されるようになっている。
The operation lever 44 is supported so as to be extendable with respect to the operation arm 41. In other words, a boss portion 41a extending in the vertical direction is fixed to the outside of the operation arm 41, and the operation lever 44 is inserted and held in the boss portion 41a so as to be slidable up and down. The operation lever 44 in the free state is slid and shortened to the lower slide limit by its own weight. In this slide shortened state, the grip 44a of the operation lever 44 is located at a position lower than the backrest upper end of the driver seat 15, and It is kept at an unobtrusive height. When discharging the cut grass by swinging up and swinging the rear container part 7B, the operating lever 44 is slid upward so that the grip part 44a is positioned higher than the upper end of the backrest of the driver seat 30. The operation lever 44 is used. The stopper pin 44c provided on the upper portion of the operation lever 44 is received by the upper end of the boss portion 41a to restrict the downward sliding of the operation lever 44, and the large diameter stopper portion 44b provided at the lower end portion of the operation lever 44 is the boss portion. The upper slide of the operation lever 44 is restricted by contacting the lower end of the portion 41a. The base of the operation arm 41 and the boss 41 a are covered with a decorative cover 50.

図7に示すように、後側容器部7Bを振り上げ揺動して容器内に回収した刈草を排出する場合、後側容器部7Bの振り上げによって前側容器部7Aが後方に大きく開放され、前側容器部7A内の刈草の多くは崩れ落ちて排出されるが、ダクト6の後部に溜まった刈草や前側容器部7Aの底部に溜まった刈草が残るので、操作レバー26を操作して底板部材25を大きく前上がり傾斜した排出姿勢に切換え揺動することで、ダクト6の後部に溜まった刈草や前側容器部7Aの底部に溜まった刈草を残らず落下排出することができる。   As shown in FIG. 7, when the rear container portion 7B is swung up and swung to discharge the cut grass collected in the container, the front container portion 7A is largely opened backward by swinging up the rear container portion 7B. Most of the cut grass in the portion 7A collapses and is discharged, but since the cut grass collected at the rear of the duct 6 and the cut grass collected at the bottom of the front container portion 7A remain, the operation lever 26 is operated to enlarge the bottom plate member 25. By switching and swinging to the discharging posture inclined upward, it is possible to drop and discharge all of the mowing grass collected at the rear portion of the duct 6 and the mowing grass accumulated at the bottom portion of the front container portion 7A.

前側容器部7Aの前端下部には、集草姿勢にある後側容器部7Bの前記位置決めピン部31aに上方から係合するフック部材46が設けられている。このフック部材46は支点b周りに上下揺動可能に枢支連結されるとともに、バネ47によって係合方向に揺動付勢されており、後側容器部7Bが後側容器部7Bを集草姿勢に振り下げて刈草回収作業を行う際、走行に伴う機体のバウンド、等によって後側容器部7Bが不用意に揺動して前側容器部7Aと後側容器部7Bとの接続部に隙間ができるのを抑制し、回収した刈草が洩れ落ちることを防止している。ただし、操作レバー44を操作して後側容器部7Bを強制的に振り上げ作動させた際には、後側容器部7Bの位置決めピン部31aで強く押されたフック部材46がバネ47に抗して後退揺動されるように、フック形状およびバネ47の強さが設定されている。   A hook member 46 that engages with the positioning pin portion 31a of the rear container portion 7B in the grass collecting posture from above is provided at the lower front end of the front container portion 7A. The hook member 46 is pivotally connected to the fulcrum b so as to swing up and down, and is urged to swing in the engagement direction by a spring 47, so that the rear container part 7B collects grass on the rear container part 7B. When performing the grass cutting collection operation by swinging down to the posture, the rear container part 7B is inadvertently swung due to the bouncing of the airframe accompanying traveling, etc., and there is a gap in the connection part between the front container part 7A and the rear container part 7B. This prevents the collected grass from leaking out. However, when the operation lever 44 is operated to forcibly raise the rear container part 7B, the hook member 46 strongly pressed by the positioning pin part 31a of the rear container part 7B resists the spring 47. Thus, the hook shape and the strength of the spring 47 are set so as to swing backward.

前側容器部7Aにおける左右内面には支点軸35,36から離れて牽制ピン51および牽制突起57が突設されるとともに、後側容器部7Bの連結金具37には前記係合凹部38に連通するガイド溝52が支点pを中心とする円弧状に形成されており、図6に示すように、後側容器部7Bが振り下げ揺動されて集草姿勢にある時には、ガイド溝52が牽制ピン51から外れた位置にあり、この状態では、後側容器部7Bを上方に持ち上げて連結金具37を支点軸35,36から外すことで、後側容器部7Bを前側容器部7Aから離脱することができる。   A check pin 51 and a check projection 57 are provided on the left and right inner surfaces of the front container portion 7A apart from the fulcrum shafts 35 and 36, and the connection fitting 37 of the rear container portion 7B communicates with the engagement recess 38. The guide groove 52 is formed in an arc shape centered on the fulcrum p, and as shown in FIG. 6, when the rear container part 7B is swung down and is in a grass collecting position, the guide groove 52 is a check pin. 51. In this state, the rear container part 7B is lifted upward and the connecting bracket 37 is detached from the fulcrum shafts 35, 36, so that the rear container part 7B is detached from the front container part 7A. Can do.

図7に示すように、後側容器部7Bを集草姿勢から振り上げ揺動すると、牽制ピン51がガイド溝52に係合されるとともに、牽制突起57が連結金具37の前側に近接することになって、連結金具37を支点軸35,36から上方および前方に動かすことが不能となる。つまり、後側容器部7Bが振り下げ揺動された低い集草姿勢にある時にのみ後側容器部7Bの脱着が許容される脱着牽制構造が構成されているのである。なお、後側容器部7Bにおける上面の前後には支持枠31に連結された門形の取っ手53が備えられており、後側容器部7Bの脱着時に利用される。   As shown in FIG. 7, when the rear container part 7 </ b> B is swung up and swung from the grass collecting posture, the check pin 51 is engaged with the guide groove 52, and the check projection 57 is close to the front side of the connection fitting 37. Thus, the connection fitting 37 cannot be moved upward and forward from the fulcrum shafts 35 and 36. In other words, a desorption check structure is configured in which the rear container portion 7B is allowed to be attached and detached only when the rear container portion 7B is in a low grass collection posture swinging down. A portal handle 53 connected to the support frame 31 is provided before and after the upper surface of the rear container part 7B, and is used when the rear container part 7B is detached.

なお、後側容器部7Bを取外しに先立って、引き伸ばした操作レバー44をガススプリング45に抗して少し後方に操作した後、前側容器部7Aの側面に突設したピン58に短縮させた操作レバー44を係止し、操作アーム41を係合ピン43から外れた位置に保持しておく。このように操作レバー44を係止固定しておくことで、後側容器部7Bを取外した状態で、後側容器部7Bの重量負荷から開放された操作アーム41がガススプリング45によって大きく振り上げられてしまうことを阻止する機能を発揮する。   Prior to removing the rear container portion 7B, the extended operation lever 44 is operated slightly backward against the gas spring 45 and then shortened to a pin 58 projecting from the side surface of the front container portion 7A. The lever 44 is locked and the operation arm 41 is held at a position disengaged from the engagement pin 43. By locking the operation lever 44 in this way, the operation arm 41 released from the weight load of the rear container part 7B is greatly swung up by the gas spring 45 with the rear container part 7B removed. Demonstrate the function to prevent it.

図11に示すように、モーア5におけるデッキ16の後方下部には刈草排出口18の底面を構成する底板54が設けられている。この底板54は支点c周りに上下揺動可能、かつ、操作レバー55によって手動で揺動操作可能となっており、刈草排出口18およびダクト6との接続部付近での刈草詰まりが発生した場合、底板54を揺動操作することで詰まった刈草を、この底板54とダクト6の底板24との間に形成された空隙dから排出することができるようになっている。この場合、刈草がブリッジ状に多量に詰まると底板54を大きく動かせなくなるが、ダクト6の側面前部に切欠き部56を形成して、この部位におけるダクト6の側壁高さを小さくしておくことで、底板54の揺動によって押された刈草の一部が切欠き部56から強制的に押し出されて詰まりが崩されやすくなり、何回か揺動操作することで底板54が大きく揺動操作できるようになり、詰まった刈草を空隙dから残らず排出することができる。   As shown in FIG. 11, a bottom plate 54 that constitutes the bottom surface of the grass cutting outlet 18 is provided at the lower rear portion of the deck 16 in the mower 5. The bottom plate 54 can be swung up and down around the fulcrum c, and can be swung manually by the operation lever 55. When the grass cutting clogging occurs near the connection portion between the cut grass outlet 18 and the duct 6. The mowing grass that is clogged by swinging the bottom plate 54 can be discharged from the gap d formed between the bottom plate 54 and the bottom plate 24 of the duct 6. In this case, the bottom plate 54 cannot be moved greatly if the grass is clogged in a bridge shape, but a notch 56 is formed in the front side of the duct 6 to reduce the height of the side wall of the duct 6 at this portion. As a result, a part of the cut grass pushed by the swing of the bottom plate 54 is forced out of the notch 56 and the clogging is easily broken, and the bottom plate 54 swings greatly by swinging several times. It becomes possible to operate, and the clogged cut grass can be discharged from the gap d.

〔他の実施例〕   [Other Examples]

前記底板部材25の揺動支点cを、前側容器部7Aにおける底板23の前端よりも前方に片寄った箇所、つまり、ダクト6における底板24の後部に設置することもできる。   The rocking fulcrum c of the bottom plate member 25 can also be installed at a position offset forward from the front end of the bottom plate 23 in the front container portion 7A, that is, at the rear portion of the bottom plate 24 in the duct 6.

草刈機の全体側面図Overall side view of mower 草刈機の全体平面図Overall plan view of mower 集草状態の集草装置を示す右側面図Right side view showing the grass collecting device 排出状態の集草装置を示す右側面図Right side view showing the grass collector in the discharged state 集草容器分離状態の側面図Side view of the separation container 集草状態の集草装置を示す縦断側面図Longitudinal side view showing the grass collecting device 排出状態の集草装置を示す縦断側面図Longitudinal side view showing the grass collector in the discharged state 集草装置の縦断背面図Vertical rear view of the grass collector 集草容器の縦断背面図Vertical rear view of grass collection container 集草容器連結部の分解斜視図Exploded perspective view of grass container connection モーアとダクトの接続部位を示す縦断側面図Longitudinal side view showing the connection part of mower and duct

符号の説明Explanation of symbols

3 乗用走行機体
5 モーア
6 ダクト
7 集草容器
7A 前側容器部
7B 後側容器部
18 刈草排出口
23 底板
24 底板
25 底板部材
54 底板
56 切欠き部
c 支点
p 支点
q 支点
DESCRIPTION OF SYMBOLS 3 Passenger traveling machine body 5 Moor 6 Duct 7 Grass collection container 7A Front side container part 7B Rear side container part 18 Mowing grass discharge port 23 Bottom plate 24 Bottom plate 25 Bottom plate member 54 Bottom plate 56 Notch part c Support point p Support point q Support point

Claims (4)

乗用走行機体に装備したモーアからの刈草をダクトで案内して、機体後部に配備した集草容器に投入回収するよう構成するとともに、前記集草容器を後向きに開放された前側容器部と前向きに開放された後側容器部とで構成し、前側容器部を機体側に固定するとともに、後側容器部を前側容器部の後方上部に設けた支点周りに振り上げ揺動自在に支持した草刈機の集草装置において、
前記ダクトの後部底面を形成する幅狭の底板と前記前側容器部の底面を形成する幅広の底板とを一体化した平面形状T形の底板部材を設け、この底板部材を、前記前側容器部の底面側に位置する左右向きの支点周りに上下揺動操作可能に構成してあることを特徴とする草刈機の集草装置。
The mower from the mower equipped on the passenger traveling body is guided by a duct, and it is configured to be charged and collected in a collection container arranged at the rear of the aircraft, and the collection container is opened forward with the front container part opened rearward. A grass mower configured with an open rear container portion, fixing the front container portion to the machine body side, and swinging the rear container portion around a fulcrum provided at the upper rear portion of the front container portion so as to be swingable. In the grass collector,
A flat T-shaped bottom plate member is provided in which a narrow bottom plate that forms the rear bottom surface of the duct and a wide bottom plate that forms the bottom surface of the front container portion are provided, and the bottom plate member is connected to the front container portion. A grass collecting apparatus for a mower characterized by being configured to be capable of swinging up and down around a fulcrum in the left-right direction located on the bottom side .
前記底板部材の、前記前側容器部の底面側に位置する左右向きの支点を前記前側容器部の底板における前端付近に設けてある請求項1記載の草刈機の集草装置。 The grass collecting apparatus for a mower according to claim 1, wherein a left and right fulcrum of the bottom plate member located on the bottom surface side of the front container portion is provided near the front end of the bottom plate of the front container portion. 前記モーアの刈草排出口と前記ダクトとの接続部位近傍に、前記刈草排出口の底面側に位置する左右向きの支点周り上下揺動操作可能な底板を設けてある請求項1または2記載の草刈機の集草装置。 The bottom plate which can be swung up and down around the left and right fulcrum located on the bottom surface side of the mowing grass discharge port is provided in the vicinity of the connection portion between the mower grass discharge port and the duct. Grass mower collecting device. 前記ダクトの前部における横側部に刈草押出し排出用の切欠き部を形成してある請求項3記載の草刈機の集草装置。   The grass collecting device for a mower according to claim 3, wherein a cutout portion for extruding the mowing grass is formed in a lateral side portion at a front portion of the duct.
JP2005265337A 2005-09-13 2005-09-13 Grass mower Active JP4542487B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP2005265337A JP4542487B2 (en) 2005-09-13 2005-09-13 Grass mower
US11/508,122 US7565790B2 (en) 2005-09-13 2006-08-22 Grass collector for a mower
FR0653692A FR2890525B1 (en) 2005-09-13 2006-09-12 GRASS COLLECTOR FOR A MOWER
FR0752961A FR2894429B1 (en) 2005-09-13 2007-01-30 GRASS COLLECTOR FOR A MOWER
US12/493,327 US7905080B2 (en) 2005-09-13 2009-06-29 Grass collector for a mower

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JP2007074957A JP2007074957A (en) 2007-03-29
JP4542487B2 true JP4542487B2 (en) 2010-09-15

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JP5060466B2 (en) * 2008-12-24 2012-10-31 株式会社クボタ Mower collecting equipment
JP5347501B2 (en) * 2008-12-27 2013-11-20 井関農機株式会社 Mower collector
JP5187205B2 (en) * 2009-01-20 2013-04-24 井関農機株式会社 Lawn mower
JP5562668B2 (en) * 2010-01-29 2014-07-30 ヤンマー株式会社 Traveling lawn mower

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JP2005151840A (en) * 2003-11-21 2005-06-16 Kubota Corp Grass collector

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JP2000262124A (en) * 1999-03-17 2000-09-26 Kubota Corp Mower
JP2003189717A (en) * 2001-12-28 2003-07-08 Kubota Corp Grass-collecting structure for working machine
JP2005151840A (en) * 2003-11-21 2005-06-16 Kubota Corp Grass collector

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