JPH11239404A - Compost scattering machine - Google Patents
Compost scattering machineInfo
- Publication number
- JPH11239404A JPH11239404A JP4568698A JP4568698A JPH11239404A JP H11239404 A JPH11239404 A JP H11239404A JP 4568698 A JP4568698 A JP 4568698A JP 4568698 A JP4568698 A JP 4568698A JP H11239404 A JPH11239404 A JP H11239404A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- compost
- hydraulic cylinder
- hydraulic
- packing box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Fertilizing (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、荷箱内に積載され
た堆肥を圃場まで運搬し、圃場内で打ちほぐしながら均
一に薄く散布する堆肥散布機に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compost dispersing machine which transports compost loaded in a packing box to a field and spreads it uniformly and thinly in the field.
【０００２】[0002]
【従来の技術】従来の堆肥散布機としては、実公平７−
１１号公報に記載されたものがある。2. Description of the Related Art As a conventional compost spreader, there is a real composting machine.
There is one described in Jpn.
【０００３】実公平７−１１号公報に記載された堆肥散
布機は、走行輪を有しトラクターにより牽引される機枠
上に設けられた荷箱と、当該荷箱の床面に設置されたス
ラットコンベアと、当該スラットコンベアー及び荷箱の
後方に設けられた散布装置と、散布装置から堆肥がこぼ
れ落ちることを防止するために設けられ、上記散布装置
の前方で荷箱の後方に設けられた遮蔽板とを備えて概略
構成されている。The compost spreader described in Japanese Utility Model Publication No. 7-11 has a packing box provided on a machine frame having running wheels and towed by a tractor, and a packing box provided on the floor of the packing box. A slat conveyor, a spraying device provided behind the slat conveyor and the packing box, and provided to prevent compost from spilling from the spreading device, and provided in front of the spreading device and behind the packing box. And a shielding plate.
【０００４】このものにおいて、荷箱に積載された堆肥
を圃場に散布する場合には上記遮蔽板を油圧シリンダを
伸長させて上方に移動させトラクターの回転動力をＰＴ
Ｏ軸を介して散布装置に伝達し、散布装置を回転駆動
し、次いでトラクターの回転動力をスラットコンベアー
に伝達してスラットコンベアを走行駆動させ、スラット
コンベアー上に積載された荷箱内の堆肥を散布装置側に
搬送させ、散布装置により圃場に均一にかる薄く散布す
る。そして、荷箱内の堆肥がすべて散布し終えたら、上
記油圧シリンダを縮退駆動して上記遮蔽板を下降させ、
荷箱内に堆肥を積載可能な状態とする。[0004] In this apparatus, when the compost loaded in the packing box is sprayed on the field, the shield plate is moved upward by extending the hydraulic cylinder to increase the rotational power of the tractor by PT.
It is transmitted to the spreading device via the O-axis, the driving device is rotated, and then the rotational power of the tractor is transmitted to the slat conveyor to drive the slat conveyor to travel, and the compost in the packing box loaded on the slat conveyor is removed. It is conveyed to the spraying device side and sprayed uniformly and thinly on the field by the spraying device. Then, when all the compost in the packing box has been sprayed, the hydraulic cylinder is retracted to lower the shielding plate,
Compost can be loaded in the packing box.
【０００５】一方、本願出願人は、堆肥散布機に関し以
下のような発明をなし、本願出願よりも前に特許出願し
ている（特願平９−１７９６１０号参照）。[0005] On the other hand, the present applicant has made the following invention regarding a compost spreader and has filed a patent application before the present application (see Japanese Patent Application No. 9-179610).
【０００６】この特願平９−１７９６１０号に記載され
た堆肥散布機は、台車に設けられた荷箱と、荷箱の後端
に設けれた散布装置と、上記荷箱の前端に設けられた堆
肥押出装置（油圧シリンダー）と、この堆肥押出装置に
より移動駆動される押出板とを主たる構成とするもので
ある。The compost spreader described in Japanese Patent Application No. Hei 9-179610 is provided with a packing box provided on a truck, a spreading device provided at a rear end of the packing box, and a front end of the packing box. The main configuration is a compost extruder (hydraulic cylinder) and an extruded plate that is moved and driven by the compost extruder.
【０００７】このものにおいて、荷箱内に積載された堆
肥を圃場に散布する場合にはトラクターの回転動力をＰ
ＴＯ軸を介して上記散布装置に伝達し散布装置を回転駆
動させ、次いでトラクターに搭載された油圧発生装置か
らの油圧を堆肥押出装置の油圧シリンダに供給し、これ
により堆肥押出装置の一部である押出板を荷箱の前方か
ら後方に向けて押出駆動し堆肥を押出し、上記散布装置
により圃場に均一にかつ薄く散布する。そして、荷箱内
の堆肥がすべて散布し終えたら、油圧発生装置の切換弁
を操作して供給方向を反転して上記油圧シリンダを縮退
駆動して、押出板を荷箱前方に引き戻すと、荷箱内に堆
肥を積載可能な状態となる。[0007] In this case, when the compost loaded in the packing box is sprayed on the field, the rotation power of the tractor is increased by P.
It is transmitted to the spraying device via the TO shaft to rotate the spraying device, and then the hydraulic pressure from the hydraulic pressure generator mounted on the tractor is supplied to the hydraulic cylinder of the compost extrusion device. A certain extruded plate is extruded and driven from the front to the rear of the packing box to extrude compost, and is uniformly and thinly sprayed on the field by the above-described spraying device. Then, when all the compost in the packing box has been sprayed, the switching valve of the hydraulic pressure generating device is operated to reverse the supply direction and the hydraulic cylinder is driven to retract, and the extruded plate is pulled back to the front of the packing box. The box is ready to be loaded with compost.
【０００８】[0008]
【発明が解決しようとする課題】ところで、特願平９−
１７９６１０号に記載された堆肥散布機に、実公平７−
１１のような堆肥のこぼれ落ち防止用の油圧駆動される
遮蔽板を設けようとすると以下のような解決すべき課題
が生ずる。The problem to be solved by the present invention is disclosed in Japanese Patent Application No. Hei.
179610 No. 7-composter
If an attempt is made to provide a hydraulically driven shield plate 11 for preventing compost from falling off, the following problems must be solved.
【０００９】（１）トラクターに２系統の油圧取出口が
装備されているものにおいては、１系統を堆肥押出装置
の油圧シリンダに連結し、残りの１系統を遮蔽板の昇降
用のシリンダに連結し、堆肥押出装置の連結系統に装備
された切換弁を操作することにより堆肥押出装置の押出
板を後方に向けて押し出したり、前方に引き戻したりす
ることができるとともに、遮蔽板の昇降装置の連結系に
装備された切換弁を操作することにより遮蔽板を昇降さ
せることができる。(1) In the case where the tractor is equipped with two hydraulic outlets, one hydraulic system is connected to the hydraulic cylinder of the compost extruder, and the other hydraulic system is connected to the cylinder for raising and lowering the shielding plate. By operating the switching valve provided in the connection system of the compost extruder, the extruded plate of the compost extruder can be pushed backward or pulled back forward, and the shield plate elevating device can be connected. By operating the switching valve provided in the system, the shield plate can be raised and lowered.
【００１０】しかしながら、遮蔽板を上昇させる前に堆
肥押出装置の切換弁を操作すると、押出板により押し出
される堆肥によって遮蔽板が後方に無理に押されて遮蔽
板を破損してしまうおそれがある。However, if the switching valve of the compost extruder is operated before raising the shielding plate, the shielding plate may be forcibly pushed backward by the compost pushed out by the extruding plate and the shielding plate may be damaged.
【００１１】さらに、押出板が最も押し出された位置に
あるときに遮蔽板の昇降装置の切換弁を操作して遮蔽板
を下降させると、遮蔽板が押出板に衝突して、これらを
破損するおそれがある。Further, when the shield plate is lowered by operating the switching valve of the lifting / lowering device of the shield plate when the push plate is at the position where the push plate is most pushed out, the shield plate collides with the push plate and breaks them. There is a risk.
【００１２】このように、堆肥押出装置と遮蔽板の昇降
装置とに設けられた２つの切換弁を操作する操作手順を
適正に行わないと部品の破損事故につながるので、操作
手順について注意を払わなければならないとともに、切
換弁を操作する際に押出板及び遮蔽板の位置を確認する
必要があり、切換弁の操作が繁雑になる。As described above, if the operation procedure for operating the two switching valves provided on the compost extruder and the elevating / lowering device of the shielding plate is not performed properly, it may lead to damage to parts, and therefore, attention should be paid to the operation procedure. In addition, it is necessary to confirm the positions of the push plate and the shielding plate when operating the switching valve, which complicates the operation of the switching valve.
【００１３】（２）トラクタに１系統の油圧取出口が装
備されているものにおいては、油圧取出口から堆肥押出
装置と遮蔽板の昇降装置とに油圧を分配して供給するこ
とになるが、この場合、切換弁を操作すると堆肥押出装
置及び遮蔽板の昇降装置の油圧シリンダのいずれにも油
圧が供給され、荷箱内の堆肥による抵抗が大きい堆肥押
出装置が作動する前に、堆肥を押し出す作動力よりも小
さな作動力で作動する遮蔽板の昇降装置の油圧シリンダ
に向けて作動油が流れ、当該油圧シリンダが最大伸長状
態となってから堆肥押出装置の油圧シリンダに作動油が
供給されて押出板が後方に向けて押し出されることにな
る。(2) In the case where the tractor is provided with one hydraulic outlet, the hydraulic pressure is distributed and supplied from the hydraulic outlet to the compost extrusion device and the elevating device of the shielding plate. In this case, when the switching valve is operated, the hydraulic pressure is supplied to both the compost extruder and the hydraulic cylinder of the elevating device of the shielding plate, and the compost is extruded before the compost extruder having a large resistance due to the compost in the packing box operates. Hydraulic oil flows toward the hydraulic cylinder of the elevating device of the shielding plate, which operates with an operating force smaller than the operating force, and the hydraulic oil is supplied to the hydraulic cylinder of the compost extruder after the hydraulic cylinder reaches the maximum extension state. The extruded plate will be extruded backward.
【００１４】また、荷箱内の堆肥をすべて散布し押出板
を引き戻すべく切換弁を操作すると堆肥による抵抗がな
くなった押出板の操作力が遮蔽板の下降力よりも小さく
なるので、押出板が遮蔽板の回動領域に入っているにも
かかわらず、遮蔽板は下降し、押出板に当接して、これ
らを破損するおそれがある。Further, when the switching valve is operated to spray all the compost in the packing box and pull back the extruded plate, the operating force of the extruded plate which has no resistance due to the compost becomes smaller than the descending force of the shielding plate. Despite being in the pivot region of the shield plate, the shield plate may descend and come into contact with the extruded plate, damaging them.
【００１５】このような押出板と遮蔽板との当接を防止
するためには、遮蔽板の昇降装置の油圧回路内に停止弁
を介在させ、遮蔽板の昇降装置の油圧シリンダが最大伸
長状態に達した時点で停止弁を切換作動させて当該油圧
シリンダへの油圧回路を閉塞し、これにより遮蔽板の昇
降装置の油圧シリンダをロックして遮蔽板の下降を防止
する方法がある。このものでは押出板が散布装置に最も
近接し堆肥散布が完了し時点で、堆肥押出装置の切換弁
を操作して堆肥押出装置の油圧シリンダへの作動油の供
給を反転切り換えて押出板を前方に引き戻し、引戻終了
後に上記停止弁を操作して遮蔽板の昇降装置の油圧シリ
ンダへの油圧回路を開放し遮蔽板を下降させることとな
る。In order to prevent such contact between the push plate and the shield plate, a stop valve is interposed in the hydraulic circuit of the lift device of the shield plate, and the hydraulic cylinder of the lift device of the shield plate is in the maximum extended state. At this point, the stop valve is switched to operate to close the hydraulic circuit to the hydraulic cylinder, thereby locking the hydraulic cylinder of the lifting / lowering device of the shielding plate to prevent the shielding plate from lowering. In this method, when the extruding plate is closest to the spraying device and compost spreading is completed, the switching valve of the compost extruding device is operated to reversely switch the supply of hydraulic oil to the hydraulic cylinder of the compost extruding device, and the extruding plate is moved forward. After the retraction is completed, the stop valve is operated to open the hydraulic circuit to the hydraulic cylinder of the lifting / lowering device of the shielding plate to lower the shielding plate.
【００１６】しかしながら、遮蔽板の昇降装置の油圧シ
リンダが最も伸長した時点で当該油圧シリンダへの油圧
回路を閉塞するように上記停止弁を操作することを忘れ
ると、部品の破損事故を防止することができない。However, if the operator stops forgetting to operate the stop valve so as to close the hydraulic circuit to the hydraulic cylinder when the hydraulic cylinder of the raising and lowering device of the shielding plate is extended most, it is possible to prevent a component damage accident. Can not.
【００１７】また、遮蔽板を下降させ荷箱内に堆肥を積
載している状態で、停止弁が操作されて遮蔽板の昇降装
置の油圧シリンダへの油圧回路が閉塞された状態におい
て、堆肥押出装置の切換弁が操作されて堆肥押出装置の
油圧シリンダにより押出板が押し出されると、押出力が
積載された堆肥を介して遮蔽板に作用し、遮蔽板又は押
出板を破損するおそれがある。Further, in a state where the compost is loaded in the packing box by lowering the shielding plate and the stop valve is operated and the hydraulic circuit to the hydraulic cylinder of the elevating device of the shielding plate is closed, When the switching valve of the apparatus is operated and the extruded plate is pushed out by the hydraulic cylinder of the compost extruder, the pushing force acts on the shield plate via the loaded compost, and there is a possibility that the shield plate or the extruded plate may be damaged.
【００１８】このように、上記停止弁や切換弁を操作す
る操作手順を適正に行わないと破損事故等につながるの
で、操作手順について注意を払わなければならないとと
もに、上記停止弁及び切換弁を操作する際に押出板及び
遮蔽板の位置を確認する必要があり、切換弁の操作が繁
雑になる。As described above, if the operation procedure for operating the stop valve or the switching valve is not properly performed, a damage accident or the like may be caused. Therefore, attention must be paid to the operation procedure, and the stop valve and the switching valve must be operated. In doing so, it is necessary to check the positions of the push plate and the shield plate, and the operation of the switching valve becomes complicated.
【００１９】本発明は、上記事情に鑑みてなされたもの
で、操作が簡単であり操作手順に注意を払わなくても、
遮蔽板や押出板の破損を未然に防止することができる堆
肥散布機を提供することを目的とする。The present invention has been made in view of the above circumstances, and is simple in operation and can be performed without paying attention to the operation procedure.
An object of the present invention is to provide a compost spreader capable of preventing breakage of a shielding plate and an extruded plate beforehand.
【００２０】[0020]
【課題を解決するための手段】本発明の堆肥散布機は、
トラクター等の牽引車により牽引される機枠上に設けら
れた荷箱と、この荷箱の後方に設けられた散布装置と、
上記散布装置の前方で荷箱の後方に設けられた堆肥のこ
ぼれ落ち防止用の遮蔽板と、遮蔽板を昇降させる昇降装
置と、上記荷箱内の堆肥を後方に押し出すための押出板
と、この押出板を後方に押出駆動する移動装置とを備え
た堆肥散布機であって、上記昇降装置と上記移動装置と
を連動して駆動する連動駆動手段と、上記昇降装置によ
り上記遮蔽板が上昇させられた状態を維持する維持手段
と、上記押出板が上記遮蔽板の可動範囲に侵入している
間において上記維持手段を作動させる切換手段とを備え
た。The compost spreader of the present invention comprises:
A packing box provided on a machine frame towed by a towing vehicle such as a tractor, and a spraying device provided behind the packing box,
A shielding plate for preventing compost spillage provided in front of the spraying device and behind the packing box, an elevating device for lifting and lowering the shielding plate, and an extruding plate for pushing out the compost in the packing box to the rear, A compost disperser having a moving device for driving the pushing plate to move backward, wherein the interlocking drive means drives the moving device in conjunction with the lifting device, and the shielding plate is raised by the lifting device. And a switching means for operating the maintaining means while the extruded plate is in the movable range of the shielding plate.
【００２１】上記堆肥散布機において、上記昇降装置が
油圧シリンダを含み、上記移動装置が油圧シリンダを含
み、上記連動駆動手段が上記各油圧シリンダを連通する
油圧回路を含み、上記維持手段が上記昇降装置の油圧シ
リンダに連通する油圧回路に介装された開閉弁からな
り、上記切換手段が、上記開閉弁の弁手段に連結され開
閉弁を開閉するレバーと、上記押出板側に取り付けられ
上記レバーに当接して上記開閉弁を閉じる方向に回動さ
せる係合板とを有しているものが好ましい。In the above compost spreader, the elevating device includes a hydraulic cylinder, the moving device includes a hydraulic cylinder, the interlocking drive unit includes a hydraulic circuit communicating the hydraulic cylinders, and the maintaining unit includes the elevating device. An on-off valve interposed in a hydraulic circuit communicating with a hydraulic cylinder of the device, wherein the switching means is connected to valve means of the on-off valve to open and close the on-off valve; And an engagement plate for rotating the opening / closing valve in the closing direction by contacting the opening / closing valve.
【００２２】[0022]
【発明の実施の形態】以下、本発明の実施の一形態にか
かる堆肥散布機Ｔについて添付図面に基づいて説明す
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a compost spreader T according to an embodiment of the present invention will be described with reference to the accompanying drawings.
【００２３】本堆肥散布機Ｔは、図１に示すように、機
枠１と、この機枠１に固定された牽引杆２と、上記機枠
１に回動自在に取り付けられた車軸受け部材３と、この
車軸受部材３に取り付けられた車軸に支持される車輪４
と、上記機枠１の両側に固定された側板５，６と、両側
板５，６の内側に前方から後方に移動可能に取り付けら
れた押出板７と、この押出板７を側板５，６に沿って移
動させる移動装置８と、両側板５，６の後端部付近に設
けられた散布装置９と、この散布装置９の直前に昇降自
在に取り付けられ昇降装置１１を有する遮蔽装置１０
と、上記散布装置９を駆動する駆動装置（図示せず）と
を備えて概略構成される。As shown in FIG. 1, the present compost spreader T includes a machine frame 1, a tow rod 2 fixed to the machine frame 1, and a wheel bearing member rotatably mounted on the machine frame 1. 3 and a wheel 4 supported on an axle mounted on the wheel bearing member 3
Side plates 5 and 6 fixed to both sides of the machine frame 1; an extruding plate 7 movably mounted inside the side plates 5 and 6 from the front to the rear; , A spreading device 9 provided near the rear end of both side plates 5, 6, and a shielding device 10 having a lifting device 11 movably mounted immediately before and after the spreading device 9.
And a driving device (not shown) for driving the spraying device 9.
【００２４】上記機枠１は、図５に示すように、横枠１
２，１３と、横枠１２，１３を連結する複数の横杆１４
とを備えている。横杆１４の上面には床板１５が載置状
態で取り付けられている。左右の横枠１２，１３には上
記側板５，６が取り付けられており、左右の側板５，６
と上記押出板７とにより荷箱が形成されている。 図２
に示すように、機枠１の下面であってその中央部よりも
後方寄りに横部材１６が固定され、この横部材１６には
支軸１７が固定されており、この支軸１７には揺動範囲
を制限された上記車軸受部材３が取り付けられている。
車軸受部材３の前方及び後方に突設された車軸に上記車
輪４が支持されている。The machine frame 1 has a horizontal frame 1 as shown in FIG.
2, 13 and a plurality of horizontal rods 14 connecting the horizontal frames 12, 13.
And A floor plate 15 is mounted on the upper surface of the horizontal rod 14 in a mounted state. The side plates 5 and 6 are attached to the left and right horizontal frames 12 and 13, respectively.
And the extruded plate 7 form a packing box. FIG.
As shown in FIG. 1, a horizontal member 16 is fixed to the lower surface of the machine frame 1 and closer to the rear than the center thereof, and a support shaft 17 is fixed to the horizontal member 16. The wheel bearing member 3 whose movement range is restricted is attached.
The wheels 4 are supported on axles projecting forward and rearward of the wheel bearing member 3.
【００２５】上記散布装置９は、側板５，６の後端に固
定された後部側板１８と、この後部側板１８に回転自在
に支持された下方の散布軸２０及び上方の散布補助軸１
９と、散布軸２０に取り付けられた散布羽根２１及び散
布補助軸１９に取り付けられた散布羽根（図示せず）と
を備えている。上記散布軸２０及び散布補助軸１９は上
記機枠１の下面に軸受部材（図示せず）に支持された入
力軸（図示せず）に通常の伝達機構（図示せず）を介し
て連結されている。The spraying device 9 includes a rear side plate 18 fixed to the rear ends of the side plates 5 and 6, a lower spreading shaft 20 rotatably supported by the rear side plate 18, and an upper spreading auxiliary shaft 1.
9, a dispersion blade 21 attached to the dispersion shaft 20 and a dispersion blade (not shown) attached to the dispersion auxiliary shaft 19. The spraying shaft 20 and the spreading assist shaft 19 are connected to an input shaft (not shown) supported on a bearing member (not shown) on the lower surface of the machine frame 1 via a normal transmission mechanism (not shown). ing.
【００２６】上記遮蔽装置１０は、側板５，６の外側に
軸部材２７を中心として揺動自在に取り付けられた左右
のアーム部材２２，２３と、両アーム部材２２，２３の
上端部間に固定された遮蔽板２４とを備えている。具体
的には、側板５，６には支柱２５がボルト止めされてお
り、この支柱２５にはＵ字形のブラケット２６が取り付
けられ、このブラケット２６に上記軸部材２７が取り付
けられている。The shielding device 10 is fixed between left and right arm members 22 and 23 mounted on the outside of the side plates 5 and 6 so as to be swingable about a shaft member 27, and upper end portions of both arm members 22 and 23. And a shielding plate 24 provided. Specifically, a column 25 is bolted to the side plates 5 and 6, and a U-shaped bracket 26 is attached to the column 25, and the shaft member 27 is attached to the bracket 26.
【００２７】上記支柱２５の後方には支柱３０が配置さ
れ、当該支柱３０は上記支柱２５と同様に側板５，６に
ボルト止めされており、支柱３０にはＵ字形のブラケッ
ト３１が取り付けられている。このブラケット３１には
油圧シリンダ２８のチューブ２９がピンにより回動自在
に取り付けられている。油圧シリンダ２８のピストンロ
ッド３２は上記アーム部材２２，２３の中間部に固定さ
れた取付板３３にピンにより回動自在に取り付けられて
いる。なお、上記油圧シリンダ２８は遮蔽装置１０の遮
蔽板２４の昇降装置１１として作用する。A column 30 is disposed behind the column 25, and the column 30 is bolted to the side plates 5 and 6 similarly to the column 25, and a U-shaped bracket 31 is attached to the column 30. I have. A tube 29 of a hydraulic cylinder 28 is rotatably attached to the bracket 31 by a pin. The piston rod 32 of the hydraulic cylinder 28 is rotatably mounted on a mounting plate 33 fixed to an intermediate portion between the arm members 22 and 23 by a pin. The hydraulic cylinder 28 functions as the elevating device 11 for the shielding plate 24 of the shielding device 10.
【００２８】上記押出板７は移動装置８によりトラクタ
ーの進行方向反対方向に移動可能に設けられている。上
記移動装置８は、図１に示すように、上記床板１５の上
面に進行方向に向けて固定され、その先端が牽引杆２の
近傍まで延出する断面Ｈ形の案内レール３５（図５参
照）と、この案内レール３５を牽引杆２に固定する突部
材３４と、上記案内レール３５に摺動自在に取り付けら
れた第１、第２及び第３の摺動部材３６，３７，３８
と、第１の摺動部材３６及び第２の摺動部材３７に固定
された第１のアクチュエータとしての第１の油圧シリン
ダ３９及び第２のアクチュエータとしての第２の油圧シ
リンダ４０と、上記第１の油圧シリンダ３９及び第２の
油圧シリンダ４０の間にこれらとほぼ平行に配置された
第３のアクチュエータとしての第３の油圧シリンダ４２
と、第１及び第２の油圧シリンダ３９，４０のチューブ
の外周に摺動可能に接し、上記第３の油圧シリンダ４２
に固定された第４の摺動部材４１とを備えている。The pushing plate 7 is provided so as to be movable by a moving device 8 in a direction opposite to the traveling direction of the tractor. As shown in FIG. 1, the moving device 8 is fixed to the upper surface of the floor plate 15 in the traveling direction, and has a guide rail 35 (see FIG. 5) having an H-shaped cross section whose tip extends to the vicinity of the towing rod 2. ), A projecting member 34 for fixing the guide rail 35 to the towing rod 2, and first, second and third sliding members 36, 37, 38 slidably mounted on the guide rail 35.
A first hydraulic cylinder 39 as a first actuator fixed to the first sliding member 36 and the second sliding member 37, a second hydraulic cylinder 40 as a second actuator, A third hydraulic cylinder 42 as a third actuator disposed between and parallel to the first hydraulic cylinder 39 and the second hydraulic cylinder 40.
And slidably contact the outer circumferences of the tubes of the first and second hydraulic cylinders 39 and 40, and
And a fourth sliding member 41 fixed to the second sliding member 41.
【００２９】第１の油圧シリンダ３９はそのピストンロ
ッドを進行方向に向けた状態で配置され、ピストンロッ
ドの先端が上記案内レール３５の先端に突設された突片
４３に軸支され、チューブの先端側と中央部とが第１の
摺動部材３６及び第２の摺動部材３７に固定されてい
る。The first hydraulic cylinder 39 is disposed with its piston rod directed in the traveling direction. The tip of the piston rod is supported by a projecting piece 43 projecting from the tip of the guide rail 35, and the first hydraulic cylinder 39 is provided with a tube. The distal end and the center are fixed to the first sliding member 36 and the second sliding member 37.
【００３０】第２の油圧シリンダ４０はピストンロッド
を進行方向とは逆方向に向けて配置され、チューブの基
端部と中間部とが第１の摺動部材３６及び第２の摺動部
材３７に固定され、そのピストンロッドの先端部が第３
の油圧シリンダ４２のチューブの先端側に固定された突
片（図示せず）に軸支されている。The second hydraulic cylinder 40 is disposed with the piston rod directed in the direction opposite to the traveling direction, and the base end and the middle of the tube are connected to the first sliding member 36 and the second sliding member 37. And the tip of the piston rod is
The hydraulic cylinder 42 is pivotally supported by a projecting piece (not shown) fixed to the distal end side of the tube.
【００３１】第３の油圧シリンダ４２はピストンロッド
を進行方向とは逆方向に向けて配置され、そのチューブ
の基端部には第１の油圧シリンダ３９及び第２の油圧シ
リンダ４０のチューブの外周に摺接する第４の摺動部材
４１が固定されている。第３の油圧シリンダ４２のチュ
ーブの先端には、前述のとおり第２の油圧シリンダ４０
のピストンロッドの先端部を軸支する突片（図示せず）
が固定され、第３の油圧シリンダ４２のピストンロッド
の先端は上記押出板７に軸支されている。The third hydraulic cylinder 42 is arranged with the piston rod directed in the direction opposite to the direction of travel, and the base end of the tube has the outer periphery of the tubes of the first hydraulic cylinder 39 and the second hydraulic cylinder 40. A fourth sliding member 41 that slides on the second member is fixed. At the end of the tube of the third hydraulic cylinder 42, as described above, the second hydraulic cylinder 40
Projection piece (not shown) that supports the tip of the piston rod
Is fixed, and the tip of the piston rod of the third hydraulic cylinder 42 is supported by the pushing plate 7.
【００３２】図６に示すように、第１の油圧シリンダ３
９、第２の油圧シリンダ４０、第３の油圧シリンダ４２
は各チューブの基端部側の油室同士が連通され、第１の
油圧シリンダ３９の基端側の油室３９Ａ及び先端側の油
室３９Ｂが切換弁（図示せず）を介して油圧発生装置
（図示せず）と連通させられている。As shown in FIG. 6, the first hydraulic cylinder 3
9, the second hydraulic cylinder 40, the third hydraulic cylinder 42
The oil chambers on the base end side of each tube communicate with each other, and the oil chamber 39A on the base end side and the oil chamber 39B on the front end side of the first hydraulic cylinder 39 generate hydraulic pressure via a switching valve (not shown). It is in communication with a device (not shown).
【００３３】押出板７は、図５に示すように、左右の側
板５，６との間に適宜の間隔が形成されるような幅寸法
に形成され、その上方部には左右の側板の上端部からさ
らに上方に延出するとともに、左右の側板５，６の上端
部との間に適宜の間隔を有して側方に延出する張出部４
４が形成されている。さらに、押出板７は、幅方向の中
央部の下端に上記案内レール３５との当接を回避するた
めの切欠４５を有する押板４６と、押板４６前側の裏面
の中央近傍に上下方向に延びて固定される一対の平行な
第１の補強板４７と、第１の補強板４７の下方で水平方
向に延びて固定される第２の補強板４８と、第２の補強
板４８の下端に隣接するとともに切欠４５の側縁に沿っ
て配置される左右一対のＬ字部材４９と、このＬ字部材
４９の上記案内レール３５に臨む側に締結され案内レー
ル３５の案内溝に摺動可能に挿入される第５の摺動部材
５０とを備えている。As shown in FIG. 5, the extruded plate 7 is formed to have a width such that an appropriate space is formed between the left and right side plates 5 and 6, and the upper end thereof has upper ends of the left and right side plates. Projecting portion 4 extending further upward from the portion and extending laterally with an appropriate interval between the upper end portions of the left and right side plates 5 and 6.
4 are formed. Further, the push plate 7 has a push plate 46 having a notch 45 at a lower end of a center portion in the width direction for avoiding contact with the guide rail 35, and a push plate 46 in a vertical direction near the center of the back surface in front of the push plate 46. A pair of parallel first reinforcing plates 47 extending and fixed; a second reinforcing plate 48 extending horizontally and fixed below the first reinforcing plate 47; and a lower end of the second reinforcing plate 48 And a pair of left and right L-shaped members 49 arranged along the side edge of the notch 45 and fastened to the side of the L-shaped member 49 facing the guide rail 35 so as to be slidable in the guide groove of the guide rail 35. And a fifth sliding member 50 to be inserted into the second sliding member 50.
【００３４】図５に示すように、押板４６の側面には、
押板４６と側板６，７内壁と間の隙間を塞ぐように、弾
性体（例えばゴム板）８１が取り付けられている。同様
に押板４６の下面には、押板４６と底板１５内壁と間の
隙間を塞ぐように、弾性体（例えばゴム板）８２が取り
付けられている。As shown in FIG. 5, on the side of the pressing plate 46,
An elastic body (for example, a rubber plate) 81 is attached so as to close the gap between the push plate 46 and the inner walls of the side plates 6 and 7. Similarly, an elastic body (for example, a rubber plate) 82 is attached to the lower surface of the push plate 46 so as to close a gap between the push plate 46 and the inner wall of the bottom plate 15.
【００３５】図６に基づいて、上記遮蔽装置１０の昇降
装置１１を構成する油圧シリンダ２８と、押出板７の移
動装置８の油圧シリンダ３９，４０，４１とを作動させ
る油圧回路について説明する。With reference to FIG. 6, a hydraulic circuit for operating the hydraulic cylinder 28 constituting the lifting / lowering device 11 of the shielding device 10 and the hydraulic cylinders 39, 40, 41 of the moving device 8 of the pushing plate 7 will be described.
【００３６】昇降装置の左右の油圧シリンダ２８の基端
部側の油室２８Ａは油圧ホース５１により連通され、こ
の油圧ホース５１はストップバルブ５２、パイロットチ
ェック弁５３、クイックカプラ５４を介してトラクタ
（図示せず）に設けられた切換弁（図示せず）に接続さ
れている。先端側の油室２８Ｂは油圧ホース６２により
連通され、この油圧ホース６２はクイックカプラ６３を
介して上記切換弁（図示せず）の接続されている。An oil chamber 28A on the base end side of the left and right hydraulic cylinders 28 of the lifting device is communicated by a hydraulic hose 51. The hydraulic hose 51 is connected via a stop valve 52, a pilot check valve 53 and a quick coupler 54 to a tractor ( (Not shown) is connected to a switching valve (not shown). The oil chamber 28 </ b> B on the distal end side is communicated with a hydraulic hose 62, and the hydraulic hose 62 is connected to the switching valve (not shown) via a quick coupler 63.
【００３７】一方、移動装置８を構成する第１の油圧シ
リンダ３９、第２の油圧シリンダ４０、第３の油圧シリ
ンダ４２のチューブの基端側の油室３９Ａ，４０Ａ，４
２Ａは油圧ホース５５，５６によりそれぞれ連通されて
いる。また、第１の油圧シリンダ３９Ａのチューブの基
端側の油室３９Ａは別の１本の油圧ホース５８により流
量制御弁５７、パイロットチェック弁５３、クイックカ
プラ５４Ａ，５４Ｂを介して切換弁（図示せず）に接続
されている。On the other hand, the first hydraulic cylinder 39, the second hydraulic cylinder 40, and the third hydraulic cylinder 42, which constitute the moving device 8, have oil chambers 39A, 40A, 4 on the base end side of the tube.
2A is connected by hydraulic hoses 55 and 56, respectively. The oil chamber 39A on the base end side of the tube of the first hydraulic cylinder 39A is switched by another hydraulic hose 58 via a flow control valve 57, a pilot check valve 53, and quick couplers 54A and 54B to a switching valve (FIG. (Not shown).
【００３８】第１の油圧シリンダ３９、第２の油圧シリ
ンダ４０、第３の油圧シリンダ４２のチューブの先端側
の油室３９Ｂ，４０Ｂ，４２Ｂは油圧ホース５９、油圧
ホース６０によりそれぞれ連通させられている。第１の
油圧シリンダ３９の先端側の油室３９Ｂは別の油圧ホー
ス６１によりクイックカプラ６３Ａ，６３Ｂを介して上
記切換弁（図示せず）に接続されている。The first hydraulic cylinder 39, the second hydraulic cylinder 40, and the third hydraulic cylinder 42 are connected to the oil chambers 39B, 40B, 42B at the distal ends of the tubes by a hydraulic hose 59 and a hydraulic hose 60, respectively. I have. The oil chamber 39B on the distal end side of the first hydraulic cylinder 39 is connected to the switching valve (not shown) by another hydraulic hose 61 via quick couplers 63A and 63B.
【００３９】上記ストップバルブ５２を作動する作動装
置について説明する。An operating device for operating the stop valve 52 will be described.
【００４０】図３、図４に示すように、上記支柱２５と
支柱３０との間に位置し、側板６の側方側に突出した張
出部６４に取り付けられた支持部材に６５に、上記スト
ップバルブ５２が固定されている。上記支持部材６５は
底板６５Ａと、前方側折曲部６５Ｂと、側方折曲６５Ｃ
とを有し、前方折曲部６５Ｂには貫通孔が貫通形成さ
れ、この貫通孔内には、中央に油を通過させる貫通孔が
貫通形成され、外周にネジ部が形成された金具６６が挿
入され、上記前方折曲部６５Ｂを挟んでねじ込まれた２
個のナット６６Ａにより上記支持部材６５に上記金具６
６が締結されている。上記金具６６の後方側に突出した
ネジ部にはストップバルブ５２の一端がねじ込まれて固
定され、前方側に突出したネジ部には油圧ホースの金具
がねじ込まれて固定されている。As shown in FIGS. 3 and 4, the support member 65 is attached between the support 25 and the support 30 and is attached to a projecting portion 64 protruding to the side of the side plate 6. The stop valve 52 is fixed. The support member 65 includes a bottom plate 65A, a front bent portion 65B, and a side bent 65C.
A through-hole is formed through the front bent portion 65B, and a through-hole through which oil passes is formed in the center of the through-hole, and a metal fitting 66 having a threaded portion formed on the outer periphery. 2 that is inserted and screwed across the front bent portion 65B
The bracket 6 is attached to the support member 65 by the nuts 66A.
6 are concluded. One end of the stop valve 52 is screwed into and fixed to a screw portion projecting rearward of the fitting 66, and a fitting of a hydraulic hose is screwed and fixed to the screw portion projecting forward.
【００４１】上記側方折曲部６５Ｃには後述するブラケ
ット６７の軸受ボス６９との当接を回避するためのＵ字
形の溝（図示せず）が形成されるとともに、上記ブラケ
ット６７を締め付けて取り付けるためのボルト挿通孔が
貫通形成されている。A U-shaped groove (not shown) is formed in the side bent portion 65C to prevent the bracket 67, which will be described later, from contacting a bearing boss 69, and the bracket 67 is tightened. A bolt insertion hole for attachment is formed through.
【００４２】上記ブラケット６７は、板状部６８と、板
状部６８に貫通形成された貫通孔に挿通されて係止され
た軸受ボス６９とを備え、上記側方折曲部６５Ｃにボル
トにより固定されている。The bracket 67 has a plate-shaped portion 68 and a bearing boss 69 which is inserted and locked in a through hole formed through the plate-shaped portion 68, and is bolted to the side bent portion 65C. Fixed.
【００４３】ストップバルブ５２の矩形の切換軸７０
は、上記側方折曲部６５Ｃに向けて突出し、回動レバー
（本発明のレバーに相当する。）７１を固定する軸部材
７２に挿通されている。この軸部材７２は、ブラケット
６７に固定された軸受ボス６９に回動自在に挿通される
回動軸部７２Ａと、回動軸部７２Ａのストップバルブ５
２側に位置するとともにストップバルブ５２側の端部の
軸心にキリ穴が形成された大径軸部７２Ｂと、中心部に
形成された矩形孔の中心が上記大径軸部７２Ｂのキリ穴
の中心と一致するように上記大径軸部７２Ｂの端部に固
定された円板７３と、回動軸部の７２Ａの外側に形成さ
れた係止軸部７２Ｃと、この係止軸部７２Ｃの外側に形
成されたネジ軸部７２Ｄとを備えている。そして、上記
軸部材７２の回動軸部７２Ａを軸受ボス６９に挿通し、
係止軸部７２Ｃに後述する回動レバー７１を挿通し、ナ
ット７４をネジ軸部７２Ｄにねじ込んで上記回動レバー
７１を固定し、ブラケット６７に回動自在に支持された
軸部材７２の円板７３の矩形孔にストップバルブ５２の
切換軸７０を挿通し、上記ブラケット６７を支持部材６
５の側方折曲部６５Ｃにボルト締めして固定してストッ
プバルブ５２の切換軸７０と軸部材７２とを連結する。The rectangular switching shaft 70 of the stop valve 52
Are protruded toward the side bent portion 65C, and are inserted through a shaft member 72 for fixing a rotating lever (corresponding to a lever of the present invention) 71. The shaft member 72 includes a rotation shaft 72A rotatably inserted into a bearing boss 69 fixed to the bracket 67, and a stop valve 5 of the rotation shaft 72A.
The large-diameter shaft portion 72B, which is located on the second side and has a drill hole in the axial center of the end portion on the side of the stop valve 52, and the center of the rectangular hole formed in the center portion is the drill hole of the large-diameter shaft portion 72B. A disk 73 fixed to the end of the large-diameter shaft portion 72B so as to coincide with the center of the rotation shaft portion, a locking shaft portion 72C formed outside the rotating shaft portion 72A, and the locking shaft portion 72C And a screw shaft portion 72 </ b> D formed on the outside. Then, the rotating shaft portion 72A of the shaft member 72 is inserted through the bearing boss 69,
A rotation lever 71, which will be described later, is inserted through the locking shaft portion 72C, and a nut 74 is screwed into the screw shaft portion 72D to fix the rotation lever 71, and the circle of the shaft member 72 rotatably supported by the bracket 67. The switching shaft 70 of the stop valve 52 is inserted into the rectangular hole of the plate 73, and the bracket 67 is
Then, the switching shaft 70 of the stop valve 52 and the shaft member 72 are connected to each other by being bolted and fixed to the side bent portion 65C.
【００４４】上記回動レバー７１は、図４に示すよう
に、ほぼＴ字形に形成され、Ｔ字の交点には軸部材７２
の係止軸部７２Ｃが挿通される係止孔が形成されてい
る。回動レバー７１の第１長辺７１Ａと第２長辺７１Ｂ
とは同一長さとなっており、上記係止孔の中心から同一
距離にそれぞれ第１支軸７５及び第２支軸７６が固定さ
れ、第１支軸７５、第２支軸７６には第１ローラ７７、
第２ローラ７８が回転自在に取り付けられている。As shown in FIG. 4, the rotary lever 71 is formed substantially in a T-shape, and a shaft member 72 is provided at the intersection of the T-shape.
A locking hole through which the locking shaft portion 72C is inserted is formed. First long side 71A and second long side 71B of rotating lever 71
The first support shaft 75 and the second support shaft 76 are respectively fixed at the same distance from the center of the locking hole, and the first support shaft 75 and the second support shaft 76 Roller 77,
A second roller 78 is rotatably mounted.
【００４５】回動レバー７１の短辺７１Ｃには小径の孔
が貫通形成され、この小径の孔とブラケット６７の板状
部６８に貫通形成された小径の孔とにはねじりコイルバ
ネ７９の端部が挿通されている。A small-diameter hole is formed through the short side 71C of the rotating lever 71, and the small-diameter hole and the small-diameter hole formed through the plate-shaped portion 68 of the bracket 67 are connected to the end of a torsion coil spring 79. Is inserted.
【００４６】ストップバルブ５２は通常用いられるロー
タリタイプのものであり、切換軸７０は、ストッパ（図
示せず）により９０゜の範囲でのみ回動ができるように
回転角度が規制されている。上記切換軸７０に軸部材７
２を介して連結されている回動レバー７１の回動角度も
同様に９０゜の範囲で回転が可能となっている。The stop valve 52 is of a commonly used rotary type, and the rotation angle of the switching shaft 70 is regulated by a stopper (not shown) so that it can rotate only within a range of 90 °. The shaft member 7 is attached to the switching shaft 70.
Similarly, the rotation angle of the rotation lever 71 connected through the rotation lever 2 can be rotated within a range of 90 °.
【００４７】したがって、ブラケット６７の板状部６８
と回動レバー７１の短辺７１Ｃにその端部を挿通して係
止したねじりコイルバネ７９により、上記回動レバー７
１はその長辺７１Ａが垂直又は水平状態となるように付
勢されている。長辺７１Ａが垂直方向にあるときはスト
ップバルブ５２は全開状態となり、水平方向にあるとき
には全閉状態となっている。Therefore, the plate-like portion 68 of the bracket 67
And the torsion coil spring 79 whose end is inserted into the short side 71 </ b> C of the rotating lever 71 so as to be locked.
1 is urged so that its long side 71A is in a vertical or horizontal state. When the long side 71A is in the vertical direction, the stop valve 52 is in the fully open state, and when in the horizontal direction, the stop valve 52 is in the fully closed state.
【００４８】上記押出板４６の右側に張出部４４の側面
には下方に向けた状態で係合板８０がボルト止めされて
いる。係合板８０の下端部は鋭角に形成されており、押
出板７を後方に押出移動させた際に、その鋭角部の傾斜
面８０Ａ，８０Ｂが上記回動レバー７１のいずれかの長
辺７１Ａ又は７１Ｂが垂直になっている状態で、当該長
辺７１Ａ又は７１Ｂの第１支軸７５又は第２支軸７６に
支持された第１ローラ７７又は第２ローラ７８の周面に
当接するような位置関係で係合板８０が取り付けられて
いる。An engaging plate 80 is bolted to the right side of the push-out plate 46 on the side surface of the projecting portion 44 in a downward direction. The lower end of the engaging plate 80 is formed at an acute angle, and when the extruding plate 7 is pushed backward, the inclined surfaces 80A and 80B of the acute angle portion are either the long side 71A or the long side 71A of the rotating lever 71. A position where the peripheral surface of the first roller 77 or the second roller 78 supported by the first support shaft 75 or the second support shaft 76 of the long side 71A or 71B in a state in which the first roller 71B is vertical. The engagement plate 80 is attached in this relation.
【００４９】上記回動レバー７１の第２長辺７１Ｂが水
平方向に付勢された時点では押出板７は遮蔽板２４の回
動軌跡を越えて前方に移動しているように上記ストップ
バルブ５２及び回動レバー７１が取り付けられている。When the second long side 71B of the rotary lever 71 is urged in the horizontal direction, the push plate 7 moves forward beyond the rotation locus of the shielding plate 24 so that the stop valve 52 moves forward. And a rotation lever 71 are attached.
【００５０】なお、本実施の形態の堆肥散布機Ｔでは、
係止軸部７２Ｃに回動レバー７１を挿通しナット７４の
締付力でこれらを相互に係止しているが、係止軸部７２
Ｃと回動レバー７１とをスプライン嵌合等の嵌合手段を
用いるようにすれば、係止状態をナット７４の締付力に
依存する必要はない。In the present embodiment, the compost spreader T has
The rotation lever 71 is inserted into the locking shaft portion 72C, and these are locked to each other by the tightening force of the nut 74.
If the fitting means such as spline fitting is used between C and the rotating lever 71, the locked state does not need to depend on the tightening force of the nut 74.
【００５１】次に、上記実施の一形態にかかる堆肥散布
機Ｔの作用について説明する。Next, the operation of the compost spreader T according to the embodiment will be described.
【００５２】堆肥を散布する場合には、トラクタの連結
部に堆肥散布機Ｔの牽引杆２の先端部を連結し、堆肥散
布機Ｔ側のクイックカプラ５４Ａ，６３Ａをトラクタ側
のクイックカプラ５４Ｂ，６３Ｂに接続する。次いで、
側板５，６と押出板７とにより形成される荷箱内に堆肥
を積載し、堆肥散布機Ｔを堆肥を散布する圃場にトラク
タを牽引して移動させる。圃場に到着したら、トラクタ
のＰＴＯクラッチを接続し堆肥散布機Ｔの散布装置９に
回転動力を伝達して散布装置９を駆動する。When dispersing compost, the tip of the tow rod 2 of the compost spreader T is connected to the connecting portion of the tractor, and the quick couplers 54A and 63A on the compost spreader T are connected to the quick couplers 54B and 54B on the tractor side. 63B. Then
The compost is loaded in the packing box formed by the side plates 5 and 6 and the extruding plate 7, and the tractor is moved by pulling the compost spreader T to the field where the compost is sprayed. Upon arriving at the field, the PTO clutch of the tractor is connected, and rotational power is transmitted to the spraying device 9 of the compost spreader T to drive the spraying device 9.
【００５３】次に、トラクタ側の油圧切換弁を操作して
遮蔽装置１０の昇降装置１１の油圧シリンダ２８の基端
部側の油室２８Ａに作動油を供給するとともに、押出板
７の移動装置８の第１、第２及び第３の油圧シリンダ３
９，４０，４２の基端部側の油室３９Ａ，４０Ａ，４２
Ａに作動油を供給する。この際、パイロットチェック弁
５３の作用により低圧状態においては遮蔽装置１０の昇
降装置１１の油圧シリンダ２８の基端部側の油室２８Ａ
に作動油が供給され遮蔽板２４が上昇する。Next, the hydraulic switching valve on the tractor side is operated to supply hydraulic oil to the oil chamber 28A on the base end side of the hydraulic cylinder 28 of the lifting / lowering device 11 of the shielding device 10, and to move the pushing plate 7 8, first, second and third hydraulic cylinders 3
Oil chambers 39A, 40A, 42 on the base end side of 9, 40, 42
Supply hydraulic oil to A. At this time, in the low pressure state due to the action of the pilot check valve 53, the oil chamber 28A on the base end side of the hydraulic cylinder 28 of the lifting device 11 of the shielding device 10
And the shielding plate 24 rises.
【００５４】遮蔽板２４が最上位まで上昇すると、油圧
回路内の油圧が高圧状態となり、所定の高圧状態になっ
た時点でパイロットチェック弁５３の作用により作動油
は上記第１、第２及び第３の油圧シリンダ３９，４０，
４２の基端部側の油室３９Ａ，４０Ａ，４２Ａに供給さ
れ、第１、第２及び第３の油圧シリンダ３９，４０，４
２が伸長する。When the shielding plate 24 rises to the highest position, the hydraulic pressure in the hydraulic circuit becomes a high pressure state, and when the predetermined high pressure state is reached, the hydraulic oil is released by the operation of the pilot check valve 53 to the first, second, and second hydraulic pressures. 3, hydraulic cylinders 39, 40,
The first, second, and third hydraulic cylinders 39, 40, and 4 are supplied to oil chambers 39A, 40A, and 42A on the base end side of
2 elongates.
【００５５】これにより、ピストンロッドの先端が牽引
杆２に固定された第１の油圧シリンダ３９のチューブ側
が後方に移動する。第１の油圧シリンダ３９のチューブ
と第２の油圧シリンダ４０のチューブとが連結されてい
るので、第１の油圧シリンダ３９の伸長に伴ない第２の
油圧シリンダ４０の全体が後方に移動する。As a result, the tube side of the first hydraulic cylinder 39 in which the tip of the piston rod is fixed to the towing rod 2 moves rearward. Since the tube of the first hydraulic cylinder 39 and the tube of the second hydraulic cylinder 40 are connected, the entire second hydraulic cylinder 40 moves rearward with the extension of the first hydraulic cylinder 39.
【００５６】第１の油圧シリンダ３９とチューブ同士が
連結されている第２の油圧シリンダ４０はピストンロッ
ドが後方に向けて伸長し、ピストンロッドの伸長に伴な
い第２の油圧シリンダ４０のピストンロッドにチューブ
が連結されている第３の油圧シリンダ４２の全体が後方
に移動する。第２の油圧シリンダ４０のピストンロッド
にチューブが連結されている第３の油圧シリンダ４２は
そのピストンロッドが後方に向けて伸長する。The second hydraulic cylinder 40 in which the first hydraulic cylinder 39 and the tube are connected to each other has a piston rod extending rearward, and the piston rod of the second hydraulic cylinder 40 is extended with the extension of the piston rod. The entire third hydraulic cylinder 42 connected to the tube moves rearward. The third hydraulic cylinder 42 whose tube is connected to the piston rod of the second hydraulic cylinder 40 has its piston rod extending rearward.
【００５７】すなわち、第１、第２及び第３の油圧シリ
ンダ３９，４０，４２のすべてが伸長すると、その伸長
の総和の距離分押出板７が後方に向けて移動し、その移
動に伴ない堆肥が後方に移送され、散布装置９により圃
場に散布される。That is, when all of the first, second, and third hydraulic cylinders 39, 40, and 42 extend, the pushing plate 7 moves rearward by the total distance of the extension, and accompanying the movement. The compost is transported backward and is sprayed on the field by the spraying device 9.
【００５８】ここで、押出板７が後方に移動し押出板７
の張出部４４に固定されている係合板８０の傾斜面８０
Ａが起立状態にある回動レバー７１の長辺７１Ａに支持
された第１ローラ７７に当接すると、回動レバー７１が
ねじりコイルばね７９の付勢力に抗して反時計方向に回
動させられる。そして、ねじりコイルバネ７９の回動レ
バー７１への係止部が回動レバー７１の係止孔の中心と
ブラケット６７側のねじりコイルばね７９の係止部とを
結ぶ直線上を越えると、回動レバー７１はねじりコイル
ばね７９の付勢力により反時計方向に付勢され、長辺７
１Ａがストップバルブ５２の切換軸７０の回動範囲の限
界である９０゜回動した位置（長辺７１Ａがほぼ水平位
置）で停止する。Here, the extruding plate 7 moves backward, and the extruding plate 7
Inclined surface 80 of the engagement plate 80 fixed to the overhang portion 44 of
When A comes into contact with the first roller 77 supported on the long side 71A of the rotating lever 71 in the upright state, the rotating lever 71 rotates counterclockwise against the urging force of the torsion coil spring 79. Can be When the locking portion of the torsion coil spring 79 to the rotation lever 71 exceeds the straight line connecting the center of the locking hole of the rotation lever 71 and the locking portion of the torsion coil spring 79 on the bracket 67 side, the rotation is performed. The lever 71 is urged counterclockwise by the urging force of the torsion coil spring 79, and
1A stops at a position rotated by 90 ° (the long side 71A is substantially horizontal), which is the limit of the rotation range of the switching shaft 70 of the stop valve 52.
【００５９】この状態で、ストップバルブ５２内の回路
は閉塞される。上記遮蔽板２４は第１、第２及び第３の
シリンダ３９，４０，４２が最大まで伸長するまで、上
方に移動させられた状態が維持され、荷箱内の堆肥が散
布装置９によりすべて散布される。In this state, the circuit in the stop valve 52 is closed. The shield plate 24 is maintained in a state of being moved upward until the first, second and third cylinders 39, 40 and 42 extend to the maximum, and the compost in the packing box is all sprayed by the spraying device 9. Is done.
【００６０】そして、堆肥の散布が完了したら、トラク
タの切換弁を切り換えて昇降装置１１の油圧シリンダ２
８及び移動装置８の油圧シリンダ３９，４０，４２の先
端側の油室２８Ｂ，３９Ｂ，４０Ｂ，４２Ｂに向けて作
動油を供給する。When the application of the compost is completed, the switching valve of the tractor is switched to switch the hydraulic cylinder 2
Hydraulic oil is supplied to the oil chambers 28B, 39B, 40B, 42B on the tip side of the hydraulic cylinders 8, 40, 42 of the moving device 8 and the moving device 8.
【００６１】この時は上記したようにストップバルブ５
２内の回路は閉塞されているので、作動油は、油圧シリ
ンダ２８の先端側の油室２８Ｂには供給されず、移動装
置８の油圧シリンダ３９，４０，４２のチューブの先端
側の油室３９Ｂ，４０Ｂ，４２Ｂにのみに供給され、第
１、第２及び第３の油圧シリンダ３９，４０，４２が縮
退し、縮退に伴なって押出板７が前方に引き戻される。At this time, as described above, the stop valve 5
2 is closed, the hydraulic oil is not supplied to the oil chamber 28B on the tip side of the hydraulic cylinder 28, but the oil chamber on the tip side of the tube of the hydraulic cylinders 39, 40, 42 of the moving device 8. The first, second, and third hydraulic cylinders 39, 40, and 42 are supplied only to 39B, 40B, and 42B, and the extruded plate 7 is pulled forward along with the contraction.
【００６２】上記押出板７が前方に引き戻されると、押
出板７の張出部４４に取り付けられた係合板８０の傾斜
部８０Ｂが回動レバー７１の第２長辺７１Ｂに支持され
る第２ローラ７８に当接し、回動レバー７１が時計方向
に回動される。そして、ねじりコイルばね７９の回動レ
バー７１への係止部が、回動レバー７１の係止孔の中心
とブラケット６８側のねじりコイルばね７９の係止部と
を結ぶ直線上を越えると、回動レバー７１はねじりコイ
ルばね７９の付勢力により時計方向に付勢され、長辺７
１Ｂがストップバルブ５２の切換軸７０の回動範囲の限
界である９０゜回動した位置（長辺７１Ａがほぼ水平位
置）で停止する。これにより回動レバー７１の回動によ
りストッパバルブ５２の回路が開放され、油圧シリンダ
２８の油室２８Ｂに作動油が供給され、これにより遮蔽
板２４の下降が開始される。When the pushing plate 7 is pulled forward, the inclined portion 80B of the engaging plate 80 attached to the projecting portion 44 of the pushing plate 7 is supported by the second long side 71B of the rotating lever 71. The rotating lever 71 is rotated clockwise by contacting the roller 78. When the locking portion of the torsion coil spring 79 to the rotation lever 71 crosses over a straight line connecting the center of the locking hole of the rotation lever 71 and the locking portion of the torsion coil spring 79 on the bracket 68 side, The rotating lever 71 is urged clockwise by the urging force of the torsion coil spring 79,
1B stops at a position rotated by 90 ° (the long side 71A is substantially horizontal), which is the limit of the rotation range of the switching shaft 70 of the stop valve 52. Thus, the circuit of the stopper valve 52 is opened by the rotation of the rotation lever 71, and the hydraulic oil is supplied to the oil chamber 28B of the hydraulic cylinder 28, whereby the lowering of the shielding plate 24 is started.
【００６３】回動レバー７１の第２長辺７１Ｂが水平方
向に付勢された時点では押出板７は遮蔽板２４の回動軌
跡を越えて前方に移動しているように上記ストップバル
ブ５２及び回動レバー７１が取り付けられているので、
遮蔽板２４を下降させても遮蔽板２４が押出板２４に当
接することなく遮蔽板２４は漸次最下降位置に向け下降
する。同時に、押出板７も最先端位置に向けて前進す
る。At the time when the second long side 71B of the rotating lever 71 is urged in the horizontal direction, the push plate 7 is moved forward beyond the turning trajectory of the shielding plate 24 and the stop valve 52 Since the rotating lever 71 is attached,
Even when the shielding plate 24 is lowered, the shielding plate 24 gradually descends to the lowest position without the abutting of the shielding plate 24 on the pushing plate 24. At the same time, the extruded plate 7 also advances toward the most advanced position.
【００６４】遮蔽板２４が最下降位置に到達する到達す
るとともに、押出板７が最前方位置に到達した時点でト
ラクタの切換弁を中立位置に操作すると、堆肥を積載で
きる状態となる。When the switch plate of the tractor is operated to the neutral position when the shield plate 24 reaches the lowermost position and the push plate 7 reaches the forward position, the compost can be loaded.
【００６５】なお、上記実施の形態では、ストップバル
ブ５２と回動レバー７１とを支柱２５と支柱３０との間
に設けたが、ストップバルブ５２の取付位置はストップ
バルブ５２の切換軸７０に取り付けられた回動レバー７
１が、後方に移動する係合板８０により回動させられス
トップバルブ５２の回路が閉塞された時点、及び、回動
レバー７１が、前方に移動する係合板８０により回動さ
れストップバルブ５２の回路が開放された時点のいずれ
の時点においても、押出板７が遮蔽板２４の回動軌跡よ
り前方に位置していればよく、上記実施の形態に限定さ
れることはなく、例えば支柱２５よりも前方に設けるよ
うにしてもよい。In the above embodiment, the stop valve 52 and the rotary lever 71 are provided between the support 25 and the support 30. However, the stop valve 52 is mounted on the switching shaft 70 of the stop valve 52. Rotating lever 7
1 is rotated by the engagement plate 80 moving rearward to close the circuit of the stop valve 52, and the rotation lever 71 is rotated by the engagement plate 80 moving forward and the circuit of the stop valve 52 is closed. It is sufficient that the pushing plate 7 is located forward of the turning trajectory of the shielding plate 24 at any time when the is opened, and is not limited to the above embodiment. It may be provided in front.
【００６６】[0066]
【発明の効果】以上説明したように、本発明の堆肥散布
機では、操作が簡単であり操作手順に注意を払わなくて
も、遮蔽板や押出板の破損を未然に防止することができ
る。As described above, with the compost disperser of the present invention, the operation is simple, and it is possible to prevent breakage of the shielding plate and the extruded plate without paying attention to the operation procedure.
【図１】本発明の実施の一形態の堆肥散布機の全体構成
を示す図である。FIG. 1 is a diagram illustrating an entire configuration of a compost spreader according to an embodiment of the present invention.
【図２】図１の堆肥散布機の後部を示す図である。FIG. 2 is a view showing the rear part of the compost spreader of FIG. 1;
【図３】図１の堆肥散布機の要部を示す断面図である。FIG. 3 is a sectional view showing a main part of the compost spreader of FIG. 1;
【図４】図１の堆肥散布機の要部を示す側面図である。FIG. 4 is a side view showing a main part of the compost spreader of FIG. 1;
【図５】図１の堆肥散布機の横断面を示す断面図であ
る。FIG. 5 is a sectional view showing a cross section of the compost spreader of FIG. 1;
【図６】図１の堆肥散布機の油圧回路を示す図である。FIG. 6 is a diagram showing a hydraulic circuit of the compost spreader of FIG. 1;
１ 機枠 ７ 押出板 ８ 移動装置 ９ 散布装置 １１ 昇降装置 ２４ 遮蔽板 ２８ 油圧シリンダ（昇降装置） ３９ 第１の油圧シリンダ（移動装置） ４０ 第２の油圧シリンダ（移動装置） ４１ 第３の油圧シリンダ（移動装置） ５２ 開閉弁（維持手段） ７１ 回動レバー（切換手段） ８０ 係合板（切換手段） DESCRIPTION OF SYMBOLS 1 Machine frame 7 Extruding plate 8 Moving device 9 Spraying device 11 Elevating device 24 Shielding plate 28 Hydraulic cylinder (elevating device) 39 1st hydraulic cylinder (moving device) 40 2nd hydraulic cylinder (moving device) 41 3rd hydraulic pressure Cylinder (moving device) 52 Open / close valve (maintaining means) 71 Rotating lever (switching means) 80 Engagement plate (switching means)
Claims (2)
機枠上に設けられた荷箱と、この荷箱の後方に設けられ
た散布装置と、上記散布装置の前方で荷箱の後方に設け
られた堆肥のこぼれ落ち防止用の遮蔽板と、遮蔽板を昇
降させる昇降装置と、上記荷箱内の堆肥を後方に押し出
すための押出板と、この押出板を後方に押出駆動する移
動装置とを備えた堆肥散布機であって、上記昇降装置と
上記移動装置とを連動して駆動する連動駆動手段と、上
記昇降装置により上記遮蔽板が上昇させられた状態を維
持する維持手段と、上記押出板が上記遮蔽板の可動範囲
に侵入している間において上記維持手段を作動させる切
換手段とを備えたことを特徴とする堆肥散布機。1. A packing box provided on a machine frame towed by a towing vehicle such as a tractor, a spreading device provided behind the packing box, and a packing device provided in front of the spreading device and behind the packing box. A shielding plate for preventing falling of the compost, a lifting device for lifting and lowering the shielding plate, an extruding plate for pushing out the compost in the packing box backward, and a moving device for pushing and driving the extruding plate backward. A compost sprayer comprising: interlocking driving means for driving the lifting device and the moving device in conjunction with each other; maintenance means for maintaining the state in which the shielding plate is raised by the lifting device; and Switching means for activating the maintaining means while the board is in the movable range of the shielding plate.
記移動装置が油圧シリンダを含み、上記連動駆動手段が
上記各油圧シリンダを連通する油圧回路を含み、上記維
持手段が上記昇降装置の油圧シリンダに連通する油圧回
路に介装された開閉弁からなり、上記切換手段が、上記
開閉弁の弁手段に連結され開閉弁を開閉するレバーと、
上記押出板側に取り付けられ上記レバーに当接して上記
開閉弁を閉じる方向に回動させる係合板とを有している
請求項１記載の堆肥散布機。2. The lifting device includes a hydraulic cylinder, the moving device includes a hydraulic cylinder, the interlocking drive unit includes a hydraulic circuit communicating the hydraulic cylinders, and the maintaining unit includes a hydraulic cylinder of the lifting device. A switching circuit interposed in a hydraulic circuit communicating with the switching valve, wherein the switching means is connected to valve means of the switching valve to open and close the switching valve;
2. The compost spreader according to claim 1, further comprising: an engaging plate attached to the pushing plate side, the engaging plate being in contact with the lever and rotating the open / close valve in a closing direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04568698A JP3878738B2 (en) | 1998-02-26 | 1998-02-26 | Compost spreader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04568698A JP3878738B2 (en) | 1998-02-26 | 1998-02-26 | Compost spreader |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11239404A true JPH11239404A (en) | 1999-09-07 |
| JP3878738B2 JP3878738B2 (en) | 2007-02-07 |
Family
ID=12726281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04568698A Expired - Fee Related JP3878738B2 (en) | 1998-02-26 | 1998-02-26 | Compost spreader |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3878738B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104541717A (en) * | 2013-10-18 | 2015-04-29 | 定州四方诚信畜牧科技有限公司 | Hydraulic fertilizer pushing device |
| CN111587649A (en) * | 2020-07-07 | 2020-08-28 | 黑龙江省农业机械工程科学研究院 | Double-layer bottom plate hydraulic fertilizer pushing mechanism |
-
1998
- 1998-02-26 JP JP04568698A patent/JP3878738B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104541717A (en) * | 2013-10-18 | 2015-04-29 | 定州四方诚信畜牧科技有限公司 | Hydraulic fertilizer pushing device |
| CN111587649A (en) * | 2020-07-07 | 2020-08-28 | 黑龙江省农业机械工程科学研究院 | Double-layer bottom plate hydraulic fertilizer pushing mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3878738B2 (en) | 2007-02-07 |
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