JP6048454B2 - Passenger control machine - Google Patents
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- JP6048454B2 JP6048454B2 JP2014131805A JP2014131805A JP6048454B2 JP 6048454 B2 JP6048454 B2 JP 6048454B2 JP 2014131805 A JP2014131805 A JP 2014131805A JP 2014131805 A JP2014131805 A JP 2014131805A JP 6048454 B2 JP6048454 B2 JP 6048454B2
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Description
本発明は、圃場走行車速と連動して薬液を散布する乗用型防除機に関するものである。 The present invention relates to a riding type control machine that sprays a chemical solution in conjunction with a field traveling vehicle speed.
特許文献１に記載の乗用型防除機は、散布スイッチをオンにして薬液散布装置を起動した状態で圃場走行すると、走行車速と連動して散布量を所定量に制御する制御部により薬液を所定の散布密度で連動散布走行することができる。 In the riding type control apparatus described in Patent Document 1, when traveling on the field in a state where the spray switch is turned on and the chemical spraying device is activated, the chemical is predetermined by the control unit that controls the spraying amount to a predetermined amount in conjunction with the traveling vehicle speed. It is possible to run in conjunction with the spray density.
しかしながら、散布態様が、前進走行時に薬液を散布し、後進走行時に散布を停止する場合は、前進走行と後進走行の走行毎に散布スイッチを操作し、すなわち、散布スイッチを入れて前進走行し、続く後進走行時に散布スイッチを切り、この繰り返しによる煩わしい操作を強いられるという問題が避けられなかった。 However, when the spraying mode sprays the chemicals during forward travel and stops spraying during reverse travel, the spray switch is operated for each forward travel and reverse travel, i.e., the spray switch is turned on to travel forward, The problem was that the spray switch was turned off during the subsequent reverse travel, and the troublesome operation due to this repetition was forced.
本発明は、前後進の圃場走行について薬液を連動散布するとともに、必要により、後進走行時の散布停止を可能とする乗用型防除機を提供することにある。 It is an object of the present invention to provide a riding-type control machine that can spray a chemical solution in conjunction with forward and backward traveling in a field and, if necessary, can stop spraying during backward traveling.
請求項１に係る発明は、薬液散布量を前後進の走行車速に対応して制御する制御部（３５）を備える乗用型防除機において、上記制御部（３５）は、後進走行の検出に応じて薬液散布を停止する限定散布制御と、この限定散布制御による散布規制を解除して後進走行時に薬液散布可能に切替えるための後進散布スイッチ（６３）とを備えること特徴とする。 According to a first aspect of the present invention, in the riding type control machine including a control unit (35) for controlling the chemical spray amount in accordance with the traveling vehicle speed of the forward / reverse travel, the control unit (35) responds to the detection of the reverse travel. And a reverse spraying switch (63) for canceling the spraying restriction by the limited spraying control and switching to allow spraying of the chemical liquid during reverse travel.
請求項２に係る発明は、請求項１に係る発明において、上記制御部（３５）は、上記後進散布スイッチ（６３）の切替えによって後進走行時の薬液散布の場合に報知手段（６３ａ）によって発報する報知制御を備えることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the invention, the control unit (35) generates the notification means (63a) when the chemical solution is sprayed during reverse travel by switching the reverse spray switch (63). It is provided with the alerting | reporting control which reports.
請求項１に係る発明により、制御部（３５）は、走行時の薬液散布量を前後進の走行車速に対応して制御し、この場合において、制御部（３５）は、限定散布制御により、後進走行の検出に応じて薬液散布を停止し、また、後進散布スイッチ（６３）の切替えにより、限定散布制御による散布規制を解除して後進走行時に薬液散布が可能となる。したがって、前進走行時の連動散布を可能とするとともに、後進散布スイッチ（６３）の切替え操作のみで、後進走行毎の煩わしい散布停止操作を要することなく、後進走行時の散布停止が可能となる。 According to the first aspect of the present invention, the control unit (35) controls the amount of the chemical solution at the time of traveling corresponding to the traveling vehicle speed in the forward / rearward direction. In this case, the control unit (35) is controlled by the limited spraying control, In response to the detection of the reverse travel, the chemical spraying is stopped, and the spraying restriction by the limited spray control is canceled by switching the reverse spray switch (63), so that the chemical spray can be performed during the reverse travel. Accordingly, it is possible to perform the interlocking spraying at the time of forward travel, and it is possible to stop the spraying at the reverse travel without requiring a troublesome spray stop operation for each reverse travel only by the switching operation of the reverse travel switch (63).
請求項２に係る発明により、請求項１に係る発明の効果に加え、報知手段（６３ａ）が上記後進散布スイッチ（６３）による後進走行散布の設定を発報することから、薬液散布作業における後進散布スイッチ（６３）の設定について、作業者が容易に確認することができる。 According to the invention according to claim 2, in addition to the effect of the invention according to claim 1, the notifying means (63a) reports the setting of the reverse traveling spraying by the reverse spraying switch (63). The operator can easily confirm the setting of the spray switch (63).
上記技術思想に基づいて具体的に構成された実施の形態について以下に図面を参照しつつ説明する。なお、本実施の形態では、走行車両の前進行方向を基準に、前後、左右と云う。 Embodiments specifically configured based on the above technical idea will be described below with reference to the drawings. In the present embodiment, it is referred to as front and rear and left and right with reference to the forward traveling direction of the traveling vehicle.
本実施形態の防除用作業車両である乗用型防除機は、前輪１と後輪２を設けた走行車体の前部にボンネット３を設け、エンジン９を覆っている。ボンネット３の後方にはステアリングハンドル４を設け、さらにその後方には運転座席５を設けている。運転座席５はステップフロワ６の上方に設け、前輪１と後輪２との間には燃料タンク７及び乗降用のステップ８を設けている。 The riding type control machine, which is a control work vehicle of this embodiment, is provided with a bonnet 3 at the front part of a traveling vehicle body provided with front wheels 1 and rear wheels 2 and covers an engine 9. A steering handle 4 is provided behind the bonnet 3, and a driver seat 5 is provided behind the steering handle 4. The driver's seat 5 is provided above the step floor 6, and a fuel tank 7 and a step 8 for getting on and off are provided between the front wheel 1 and the rear wheel 2.
運転座席５の後方に薬液を収容する樹脂製の薬液タンク１８を搭載し、ボンネット３の前方には薬液を散布するブーム１０を設け、ブーム１０を昇降リンク取り付け体１１に取り付ける構成である。昇降リンク取り付け体１１は、左右一対の昇降リンク１２側と連結して昇降リンク１２と共に昇降可能とする構成とし、昇降リンク１２及びブーム取り付け体１１の昇降動作は走行車体の左右中央部に設ける昇降シリンダ１３の伸縮動作で行う。昇降シリンダ１３の一端を左右の昇降リンク１２を連結する連結軸１４に取り付けることで、昇降シリンダ１３が伸縮すると連結軸１４及び昇降リンク１２がボンネット３側の本体車両側に固定する回動軸１２ａを支点にして昇降する構成である。 A resin chemical tank 18 for storing a chemical solution is mounted behind the driver seat 5, a boom 10 for spraying the chemical solution is provided in front of the bonnet 3, and the boom 10 is attached to the lifting link attachment body 11. The lifting link attachment body 11 is connected to the pair of left and right lifting links 12 so that it can be lifted and lowered together with the lifting link 12. The lifting link 12 and the boom attachment body 11 are lifted and lowered at the center of the left and right of the traveling vehicle body. This is performed by the expansion and contraction operation of the cylinder 13. By attaching one end of the elevating cylinder 13 to a connecting shaft 14 that connects the left and right elevating links 12, when the elevating cylinder 13 expands and contracts, the connecting shaft 14 and the elevating link 12 are fixed to the main body vehicle side on the bonnet 3 side. It is the structure which goes up and down by using as a fulcrum.
図１から図３のブーム１０の姿勢は非散布状態の収納姿勢を示し、ブーム１０を走行車体の左右両側に設けるブーム受け１５で受けることで、斜め後ろ上がり姿勢としている。図５はブーム１０を走行車両の左右両側に水平姿勢に伸びる姿勢にして多数のノズル１６（左ブーム１０ａのノズル１６ａ，右ブーム１０ｂのノズル１６ｂ，中央ブーム１０ｃのノズル１６ｃ）から噴霧状の薬液を散布する薬液散布状態を示している。左右のブーム１０それぞれを個別に左右両側に伸びる姿勢にしたり収納位置にするためのブーム散布収納切換用シリンダ１７（左ブーム用シリンダ１７ａ，右ブーム用シリンダ１７ｂ）を設けている。 The posture of the boom 10 shown in FIGS. 1 to 3 indicates a non-sprayed storage posture, and the boom 10 is received by the boom receivers 15 provided on the left and right sides of the traveling vehicle body so as to be inclined obliquely upward. FIG. 5 shows a state in which the boom 10 is horizontally extended to the left and right sides of the traveling vehicle, and sprayed chemicals from a number of nozzles 16 (the nozzle 16a of the left boom 10a, the nozzle 16b of the right boom 10b, and the nozzle 16c of the central boom 10c). The chemical solution spraying state is shown. Boom spraying and storage switching cylinders 17 (the left boom cylinder 17a and the right boom cylinder 17b) are provided for individually extending the left and right booms 10 to the left and right sides and setting them to the storage positions.
薬液散布の経路及び動力伝動機構について図７に基づいて説明する。
薬液タンク１８内の薬液をブーム１０に供給する防除ポンプ２１を設け、薬液タンク１８と防除ポンプ２１の入力側とを防除用第一管２０ａで連結し、防除ポンプの出力側と薬液タンク１８とを防除用第二管２０ｂを連結している。防除用第一管２０ａは、薬液タンク１８内の薬液を防除ポンプ２１で吸引されるときに薬液が通過する管であり、防除用第二管２０ｂは、防除ポンプ２１から薬液タンク１８内の薬液を撹拌するための空気や、後述する取水装置４０に供給する空気又は水が通過する管である。
The route of chemical solution spraying and the power transmission mechanism will be described with reference to FIG.
A control pump 21 for supplying the chemical solution in the chemical solution tank 18 to the boom 10 is provided, the chemical solution tank 18 and the input side of the control pump 21 are connected by a first control pipe 20a, and the output side of the control pump and the chemical solution tank 18 are connected to each other. The second pipe 20b for controlling is connected. The first control tube 20a is a tube through which the chemical solution passes when the chemical solution in the chemical solution tank 18 is sucked by the control pump 21, and the second control tube 20b is the chemical solution in the chemical solution tank 18 from the control pump 21. Is a tube through which air or water supplied to the water intake device 40 described later passes.
防除ポンプ２１とブーム１０とを防除用第三管２０ｃで連結する。防除用第三管２０ｃの途中には、流量を調節する流量調節弁３６や、左ブーム１０ａ，右ブーム１０ｂ，中央ブーム１０ｃそれぞれに薬液を供給するか否かを選択する手動の噴霧コック２２（左ブーム用噴霧コック２２ａ，右ブーム用噴霧コック２２ｂ，中央ブーム用噴霧コック２２ｃを設けている。エンジン９の動力は入力軸２３からミッション機構２４を経て走行系出力軸２５と、防除ポンプ用出力軸２６に出力される。 The control pump 21 and the boom 10 are connected by a control third pipe 20c. In the middle of the third control pipe 20c, a flow control valve 36 for adjusting the flow rate, and a manual spray cock 22 (selecting whether or not to supply the chemical to each of the left boom 10a, the right boom 10b, and the central boom 10c) A left-boom spray cock 22a, a right-boom spray cock 22b, and a central-boom spray cock 22c are provided.The power of the engine 9 is transmitted from the input shaft 23 through the transmission mechanism 24 to the traveling system output shaft 25 and the control pump output. It is output to the shaft 26.
防除用第二管２０ｂの一端は、薬液タンク１８の外側面の下部に連結されており、防除用第二管２０ｂの終端部には切り換えバルブ２８と、後述する取水装置４０とを連結する連結部２９を設けている。 One end of the second pipe for control 20b is connected to the lower part of the outer surface of the chemical liquid tank 18, and a connection for connecting the switching valve 28 and a water intake device 40, which will be described later, to the end of the second pipe for control 20b. A portion 29 is provided.
操作盤３０について図７に基づいて説明する。
操作盤３０は運転座席５の一側より前方に突出して設け、盤面には薬液の散布及びブーム１０の操作用の各種操作具を備えている。ブーム１０の左右方向動作及び上下方向動作を操作するブーム用操作レバー３１（左ブーム用操作レバー３１ａ及び右ブーム用操作レバー３１ｂ）を設ける。また、左ブーム１０ａの収納姿勢と散布姿勢を切り換える左ブーム用姿勢変更レバー３２ａ、同様に右ブーム用姿勢変更レバー３２ｂ、左ブーム１０ａ及び右ブーム１０ｂを共に姿勢を切り換えるブーム姿勢変更レバー３２ｃを設ける。操作盤３０の内部には薬液の散布量やブーム１０の動作等を制御する制御部３５を設けている。
The operation panel 30 will be described with reference to FIG.
The operation panel 30 is provided so as to protrude forward from one side of the driver seat 5, and various operation tools for spraying the chemical solution and operating the boom 10 are provided on the panel surface. A boom operation lever 31 (a left boom operation lever 31a and a right boom operation lever 31b) for operating the left and right movements and the vertical movement of the boom 10 is provided. Further, a left boom posture changing lever 32a for switching the storage posture and the spraying posture of the left boom 10a, and a boom posture changing lever 32c for switching the postures of the right boom posture changing lever 32b, the left boom 10a and the right boom 10b together are provided. . Inside the operation panel 30 is provided a control unit 35 for controlling the spraying amount of the chemical solution, the operation of the boom 10 and the like.
また、薬液をブーム１０から散布するか停止するかを操作する噴霧コック２２（左ブーム用噴霧コック２２ａと中央ブーム用噴霧コック２２ｃと右ブーム用噴霧コック２２ｂ）を設ける。また、散布量を表示する表示計５３と散布量の増減を設定する散布量設定スイッチ５４を設ける。また、防除ポンプ２１をＯＮ・ＯＦＦするポンプスイッチ３３を設けている。また、昇降シリンダ１３の伸縮操作する操作盤側昇降用レバー３４を設ける。操作盤側昇降用レバー３４はブーム１０の散布高さ位置を調節することで、農作物の高さに合わせた薬液の散布ができる。 Further, a spray cock 22 (left boom spray cock 22a, central boom spray cock 22c, and right boom spray cock 22b) for operating whether the chemical solution is sprayed from the boom 10 or stopped is provided. In addition, a display meter 53 for displaying the spray amount and a spray amount setting switch 54 for setting increase / decrease of the spray amount are provided. Further, a pump switch 33 for turning on / off the control pump 21 is provided. Further, an operation panel side elevating lever 34 for extending and retracting the elevating cylinder 13 is provided. The operation panel side elevating lever 34 adjusts the spraying height position of the boom 10 so that the chemical solution can be sprayed according to the height of the crop.
薬液タンク１８の構成について説明する。
薬液タンクは、背面視又は正面視で車体の左右方向の中心から左右方向に構成し、薬液タンク１８は略左右対称形状に構成している。薬液タンク１８の前部は運転座席５の左右両側に突出する突出部１８ａ及び１８ｂを形成している。薬液タンク１８の後部の上面には、水や薬液を供給するための開閉蓋１９を設けている。薬液タンクの１８の後部の底面には第一開口部１８ｃと第二開口部１８ｄを形成し、第一開口部１８ｃと第二開口部１８ｄは背面視で薬液タンク１８の左右中心位置からそれぞれ左右両側に形成している。操作盤側の薬液タンク１８の外側面の下部には第三開口部１８ｅを形成し、防除用第二管２０ｂの一端を取り付ける構成である。
The configuration of the chemical liquid tank 18 will be described.
The chemical liquid tank is configured from the center in the left-right direction of the vehicle body in the left-right direction in the rear view or the front view, and the chemical tank 18 is configured in a substantially bilaterally symmetric shape. The front portion of the chemical liquid tank 18 forms projecting portions 18 a and 18 b that project to the left and right sides of the driver seat 5. On the upper surface of the rear part of the chemical liquid tank 18, an opening / closing lid 19 for supplying water and chemical liquid is provided. A first opening 18c and a second opening 18d are formed on the bottom surface of the rear part of the chemical liquid tank 18, and the first opening 18c and the second opening 18d are respectively left and right from the left and right center position of the chemical liquid tank 18 in a rear view. It is formed on both sides. A third opening 18e is formed in the lower part of the outer surface of the chemical tank 18 on the operation panel side, and one end of the second pipe 20b for control is attached.
第一開口部１８ｃには防除用第一管２０ａの一端を取り付け、着脱自在に構成している。防除用第一管２０ａの途中部には、薬液から不純物をろ過するフィルタ３７を設けている。第二開口部１８ｄは薬液タンク１８内の薬液を排水するドレンとし、ドレン用開閉蓋２７を設けている。 One end of the first control tube 20a is attached to the first opening 18c, and is configured to be detachable. A filter 37 for filtering impurities from the chemical solution is provided in the middle of the first control tube 20a. The second opening 18d is a drain for draining the chemical liquid in the chemical liquid tank 18, and a drain opening / closing lid 27 is provided.
操作盤３０と反対側の薬液タンク１８の突出部１８ａの前面に沿って薬液タンク１８内の液量を検出する第一液面計４４を設けている。第一液面計４４は上下方向に延びる管の形状とし、薬液タンク１８内の液面と同じ水位まで管内を薬液が上昇することで、車体外側からオペレータが薬液タンク１８内の液量を視認できる。 A first liquid level gauge 44 that detects the amount of liquid in the chemical liquid tank 18 is provided along the front surface of the protruding portion 18 a of the chemical liquid tank 18 on the side opposite to the operation panel 30. The first liquid level gauge 44 has a shape of a pipe extending in the vertical direction, and the liquid level in the chemical liquid tank 18 can be visually recognized by the operator from the outside of the vehicle body as the chemical liquid rises in the pipe to the same water level as the liquid level in the chemical liquid tank 18. it can.
薬液タンク１８の背面の操作盤３０側の一側に第二液面計４５を設け、第二液面計４５とドレン用開閉蓋２７と切換バルブ２８と連結部２９は互いに接近する位置に設けている。 A second liquid level gauge 45 is provided on one side of the back of the chemical liquid tank 18 on the operation panel 30 side, and the second liquid level gauge 45, the drain opening / closing lid 27, the switching valve 28, and the connecting portion 29 are provided at positions close to each other. ing.
取水装置４０は水源から取水するタービンを内蔵する取水部４１と、防除用第二管２０ｂの連結部２９と連結する取水用第一管４２と、取水部４１から取水した水が通過する取水用第二管４３から構成している。 The water intake device 40 includes a water intake part 41 that contains a turbine that takes water from a water source, a water intake first pipe 42 that is connected to the connection part 29 of the second control pipe 20b, and a water intake part through which water taken from the water intake part 41 passes. A second pipe 43 is used.
薬液を散布するときには、エンジン９を駆動し、ブーム姿勢変更レバー３２ｃを散布位置側に操作すると、制御部３５が、まず昇降シリンダ１３を伸張させて左右のブーム１０をブーム受け１５から離間させ、次いで、ブーム散布収納切換用シリンダ１７が伸張させて、左右のブーム１０を走行車体の外側に水平状に伸びて散布姿勢となるよう制御する。ポンプスイッチ３３をＯＮして噴霧コック２２を散布するほうに操作して操作盤側昇降用レバー３４でブーム１０の高さを調節しながら前進走行することで、ノズル１６から農作物に噴霧状の薬液が散布される。薬液の散布を終了してブーム１０を収納位置に戻す場合には、ブーム姿勢変更レバー３２ｃを収納位置側に操作すると、制御部３５が前述の収納位置から散布姿勢までの制御とは反対の順序でブーム１０を収納位置まで制御する。 When spraying the chemical, when the engine 9 is driven and the boom posture changing lever 32c is operated to the spray position side, the control unit 35 first extends the lifting cylinder 13 to separate the left and right booms 10 from the boom receiver 15, Next, the boom spraying / accommodating switching cylinder 17 is extended, and the left and right booms 10 are controlled to extend horizontally to the outer side of the traveling vehicle body so as to have a spraying posture. By operating the pump switch 33 to spray the spray cock 22 and moving forward while adjusting the height of the boom 10 with the operation panel side elevating lever 34, the sprayed chemical solution from the nozzle 16 to the crops Is sprayed. When the spraying of the chemical liquid is finished and the boom 10 is returned to the storage position, when the boom posture changing lever 32c is operated to the storage position side, the control unit 35 reverses the order from the control from the storage position to the spraying posture. Then, the boom 10 is controlled to the storage position.
薬液タンク１８内に取水装置４０で薬液用の水を水源Ｇから汲み上げる取水作業について説明する。
取水用第一管４２を連結部２９に連結し、取水部４１を水源Ｇに投入し、取水用第二管４３を薬液タンク１８の開閉蓋１９を開けて薬液タンク１８内に挿入する。そして、防除ポンプ２１を駆動し、切換バルブ２８を開けると、防除ポンプ２１の空気が防除用第二管２０ｂを経て取水用第一管４２を経て取水部４１に供給され、取水部４１のタービンが駆動する。すると、水源Ｇから汲み上げられた水が取水用第二管４３を通過し、薬液タンク１８内に供給される。
The water intake operation for drawing up the chemical liquid from the water source G by the water intake device 40 in the chemical liquid tank 18 will be described.
The water intake first pipe 42 is connected to the connection part 29, the water intake part 41 is put into the water source G, and the water intake second pipe 43 is inserted into the chemical liquid tank 18 by opening the opening / closing lid 19 of the chemical liquid tank 18. Then, when the control pump 21 is driven and the switching valve 28 is opened, the air of the control pump 21 is supplied to the water intake section 41 through the control second pipe 20 b and the water intake first pipe 42, and the turbine of the water intake section 41. Drive. Then, the water pumped up from the water source G passes through the second water intake pipe 43 and is supplied into the chemical liquid tank 18.
薬液タンク１８内にオペレータが必要な水量が供給されるのを第二液面計４５で確認すると、切換バルブ２８を閉じて取水作業を終了させる。そして、オペレータは薬液タンク１８内に収容した水に薬液の原液を投入して希釈させることで、圃場に散布する薬液に生成する。取水作業時、オペレータは、第二液面計４５を視認しながら水を薬液タンク１８内に供給し、切換弁２８の閉操作で水の供給の停止を行うことができる。 When the second liquid level gauge 45 confirms that the amount of water required by the operator is supplied into the chemical liquid tank 18, the switching valve 28 is closed and the water intake operation is terminated. And an operator produces | generates in the chemical | medical solution spread | dispersed in a farm field by throwing the stock solution of chemical | medical solution into the water accommodated in the chemical | medical solution tank 18, and diluting it. At the time of water intake operation, the operator can supply water into the chemical tank 18 while visually checking the second liquid level gauge 45, and can stop the supply of water by closing the switching valve 28.
（前後進散布）
上記乗用防除機は、走行散布用のポンプスイッチ３３によって起動される防除ポンプ２１と、前後進の走行車速に比例して流量調節弁３６を制御することにより薬液散布量を調節する制御部３５とを備え、防除ポンプ２１を起動して走行した場合に、前後進の機体走行と連動して薬液を各ノズル１６…から散布可能に構成する。制御部３５は、散布量設定スイッチ５４によって設定した面積当たりの散布量となるように前後進の走行車速に比例して流量調節弁３６を制御する。
(Forward and backward spraying)
The riding control machine includes a control pump 21 that is activated by a pump switch 33 for spraying traveling, a control unit 35 that adjusts a chemical spraying amount by controlling a flow rate adjusting valve 36 in proportion to the traveling vehicle speed of forward and backward travel, and When the control pump 21 is activated and travels, the chemical liquid can be sprayed from the nozzles 16 in conjunction with forward and backward traveling of the body. The control unit 35 controls the flow rate adjusting valve 36 in proportion to the traveling vehicle speed in the forward / rearward direction so that the spray amount per area set by the spray amount setting switch 54 is obtained.
また、制御部３５は、後進走行時の薬液散布を停止して散布走行を前進時に限定可能に構成する。すなわち、変速レバー６１のポジション構成図を図１２に示すように、変速レバー６１の後進ポジションを検出するリミットスイッチ６２等による後進検出手段を設け、その後進走行検出に応じて薬液散布を停止する限定散布制御と、この限定散布制御を停止して薬液を前後進走行に連動して散布する前後進連動散布制御とを切換え可能に構成する。 Moreover, the control part 35 is comprised so that a chemical | medical solution dispersion | distribution at the time of reverse travel can be stopped, and spraying travel can be limited at the time of advance. That is, as shown in FIG. 12, the position configuration diagram of the speed change lever 61 is provided with reverse detection means such as a limit switch 62 for detecting the reverse position of the speed change lever 61, and the chemical solution spraying is stopped in response to the detection of the reverse travel. The spraying control and the forward / backward interlocking spraying control for stopping the limited spraying control and spraying the chemical liquid in conjunction with the forward / reverse travel are configured to be switchable.
具体的には、散布制御のシーケンス図を図１３に示すように、後進検出手段であるリミットスイッチ６２のＢ接点をポンプスイッチ３３による散布作動系に直列接続して限定散布制御を構成し、この後進検出リミットスイッチ６２と並列してシーソースイッチ等による後進散布スイッチ６３を接続する。 Specifically, as shown in the sequence diagram of the spray control in FIG. 13, the limited spray control is configured by connecting the B contact of the limit switch 62 as the reverse detection means in series to the spray operating system by the pump switch 33. A reverse spray switch 63 such as a seesaw switch is connected in parallel with the reverse detection limit switch 62.
この後進散布スイッチ６３によって上記限定散布制御による散布規制の解除が可能となることから、ポンプスイッチ３３がオンの場合は、前進走行について薬液が連動散布され、また、後進走行の際は、後進散布スイッチ６３の切替えにより後進散布のオンとオフを随時選択することができる。 Since the reverse spraying switch 63 can release the spraying restriction by the limited spraying control, when the pump switch 33 is on, the chemical solution is sprayed in conjunction with the forward travel, and the reverse spraying is performed during the reverse travel. By switching the switch 63, it is possible to select on / off of reverse spraying at any time.
上記制御部３５は、操作盤構成の斜視図を図１４に示すように、操作盤３０に設けた後進散布スイッチ６３が後進散布オンの場合に点灯するランプ６３ａ等の暗中識別が容易な報知手段を設けることにより、後進散布スイッチ６３の設定を作業者が容易に確認することができる。 As shown in FIG. 14, the control unit 35 is a notifying means for easily identifying in the dark such as a lamp 63 a that is turned on when the reverse spray switch 63 provided on the operation panel 30 is turned on. By providing, the operator can easily confirm the setting of the reverse spray switch 63.
また、ＨＳＴ変速レバーを備える無段変速式の乗用型防除機については、変速レバーの構成図を図１５（ａ）に示すように、変速レバー６４の基部にレバー角度位置を検出するアングルセンサ６４ａによる後進検出手段を設けて前進走行と後進走行とを判定可能に構成する。 Further, for a continuously variable transmission type pest control machine equipped with an HST shift lever, an angle sensor 64a for detecting a lever angular position at the base of the shift lever 64 is shown in FIG. The reverse detection means is provided so that forward travel and reverse travel can be determined.
後進散布の制御は、フローチャートを図１５（ｂ）に示すように、後進散布スイッチ６３の判定が「後進散布」であって、かつ、アングルセンサ６４ａの角度判定が「後進走行」の両条件を満たす場合に限って散布のためにポンプを作動する。なお、アングルセンサ６４ａの後進走行の判定は、所定のしきい値以下の角度条件を満たす場合を「後進走行」として判定する。 As shown in the flow chart of FIG. 15B, the reverse spray control is performed under the conditions that the determination of the reverse spray switch 63 is “reverse spray” and the angle determination of the angle sensor 64a is “reverse travel”. Operate the pump for spraying only when filling. In the determination of reverse travel of the angle sensor 64a, a case where an angle condition equal to or smaller than a predetermined threshold is satisfied is determined as “reverse travel”.
（ブーム開閉）
次に、薬液散布装置のサイドブームの開閉操作について説明すると、ブームの開閉シーケンス図を図１６に示すように、左ブーム１０ａの収納姿勢と散布姿勢を切換える開閉制御系に姿勢変更レバー３２ａの操作と連動して機体の両側端部配置の左のウィンカ６５を点灯可能に構成する。右ブーム１０ｂについても同様に、姿勢変更レバー３２ｂによって右ウィンカ６５を点灯可能に、さらに、左右同時動作の姿勢変更レバー３２ｃによって左右ウィンカ６５，６５を点灯可能に構成する。
(Boom open / close)
Next, the opening and closing operation of the side boom of the chemical spraying device will be described. As shown in the boom opening and closing sequence diagram in FIG. The left blinker 65 arranged on both side end portions of the airframe is configured so as to be lit. Similarly, the right boom 10b is configured such that the right blinker 65 can be turned on by the posture changing lever 32b, and the left and right turners 65, 65 can be turned on by the posture changing lever 32c that operates simultaneously in the left and right directions.
上記制御構成により、作業者が左右のブーム１０ａ，１０ｂをレバー操作している場合に、対応する側の左右のウィンカ６５，６５の点灯によってそれぞれの動作状況を暗い場合であっても認識できるので、操作性を向上することができる。また、防除機の周辺においても、路上走行用のウィンカ６５，６５の点灯により、左右のブーム１０ａ，１０ｂの動作を知覚することができるので、安全性の向上が可能となる。 With the above control structure, when the operator is operating the levers on the left and right booms 10a and 10b, it is possible to recognize the respective operating conditions even when the operation status is dark by lighting the left and right blinkers 65 and 65 on the corresponding side. The operability can be improved. In addition, since the operation of the left and right booms 10a and 10b can be perceived by lighting the winkers 65 and 65 for traveling on the road, the safety can be improved.
（ブーム昇降）
次に、昇降シリンダによるブーム昇降支持構成について説明する。
機体前部に配置されるブーム昇降用の昇降シリンダは、運転者の目前に位置しており、その結果、前方視界が遮られて丈の高い作物への防除作業では、視認性の悪化によって散布制度の低下を招くとともに、走行安全性にも影響が及んでいた。
(Boom up and down)
Next, the boom raising / lowering support structure by a raising / lowering cylinder is demonstrated.
The lifting cylinder for raising and lowering the boom located in the front of the aircraft is located in front of the driver, and as a result, in the control work on tall crops with the front view blocked, it is scattered due to poor visibility. In addition to causing a decline in the system, driving safety was also affected.
このような問題を解消するために、ブーム支持構成の正面図、平面図、および側面図を図１７から図１９に示すように、ブームフレーム７１と昇降リンク（アンダー）１２間を左右配置の昇降シリンダ１３，１３でそれぞれ連結して３分割構成のブーム１０ａ，１０ｂ，１０ｃを昇降可能に構成し、これら昇降シリンダ１３，１３を機体中心（オペレータ席５センター）Ｃよりオフセットして構成することにより、防除作業時の前方視認性が改善され、作業精度の向上と安全走行性の向上が可能となる。 In order to solve such a problem, as shown in FIGS. 17 to 19 in front view, plan view, and side view of the boom support structure, the boom frame 71 and the lift link (under) 12 are lifted left and right. The booms 10a, 10b, 10c having a three-part configuration are connected to each other by cylinders 13 and 13 so as to be movable up and down, and these lift cylinders 13 and 13 are configured to be offset from the machine body center (center of operator seat 5) C. The forward visibility at the time of control work is improved, and it is possible to improve work accuracy and safe driving.
また、昇降リンクセンターに昇降シリンダを設けた従来の構成では薬液ノズル１６…を装着したブームランスが大きく揺れ、散布精度が悪くなる問題があり、また、センター一本化した電動油圧式シリンダでは推力不足が発生し、特に、リフトスピードが経年変化によって低下する問題があったことから、機体中心線Ｃより相対して、昇降リンク１２の内方に昇降シリンダ１３を左右それぞれ配置することにより、それぞれの昇降リンク１２の捩れ剛性を確保することができ、その結果、作業の高速化が可能となる。 In addition, in the conventional configuration in which the lifting / lowering link center is provided in the lifting / lowering link center, there is a problem that the boom lance with the chemical solution nozzles 16 is greatly shaken and the spraying accuracy is deteriorated. Since the shortage occurred, and in particular, there was a problem that the lift speed decreased due to secular change, by placing the lifting cylinders 13 on the left and right sides of the lifting link 12 relative to the center line C, respectively, The torsional rigidity of the lifting link 12 can be ensured, and as a result, the operation speed can be increased.
また、左右の昇降シリンダ１３，１３は、昇降リンク１２の内部で、その外フレーム寄りに配置することで、オペレータからの前方視認性の確保および、走行時の昇降リンク１２の捩れ低減効果を更に高めることができる。 Further, the left and right elevating cylinders 13 and 13 are arranged inside the elevating link 12 and closer to the outer frame, thereby ensuring forward visibility from the operator and reducing the twist of the elevating link 12 during traveling. Can be increased.
また、上記左右の昇降シリンダ１３，１３は、機体正面視で鉛直方向にブームフレーム７１と昇降リンク（アンダー）１２間を連結することにより、シリンダの作動効率が最大となるので、小型で消費電流の小さい電動油圧シリンダの適用によって低コストの防除機提供が可能となる。 The left and right elevating cylinders 13 and 13 are small in size and current consumption since the operating efficiency of the cylinder is maximized by connecting the boom frame 71 and the elevating link (under) 12 in the vertical direction when the body is viewed from the front. By applying an electric hydraulic cylinder with a small size, a low-cost control machine can be provided.
また、上記昇降シリンダ１３，１３は、シリンダの本体側を上、ロッド側を下として配置することにより、農薬散布によってもシリンダ本体のオイルシール面に農薬が溜まることがないので、農薬によるオイルシールの劣化を抑えることができる。 Further, the elevating cylinders 13 and 13 are arranged with the main body side of the cylinder facing up and the rod side facing down, so that pesticides do not collect on the oil seal surface of the cylinder body even when spraying agricultural chemicals. Can be prevented.
２１ 防除ポンプ
３３ ポンプスイッチ
３５ 制御部
３６ 流量調節弁
６１ 変速レバー
６２ 後進検出リミットスイッチ（後進検出手段）
６３ 後進散布スイッチ
６３ａ ランプ（報知手段）
６４ ＨＳＴ変速レバー
６４ａ アングルセンサ（後進検出手段）
21 Control Pump 33 Pump Switch 35 Control Unit 36 Flow Control Valve 61 Shifting Lever 62 Reverse Detection Limit Switch (Reverse Detection Means)
63 Reverse spray switch 63a Lamp (notification means)
64 HST shift lever 64a Angle sensor (reverse detection means)
Claims (2)
上記制御部（３５）は、後進走行の検出に応じて薬液散布を停止する限定散布制御と、この限定散布制御による散布規制を解除して後進走行時に薬液散布可能に切替えるための後進散布スイッチ（６３）とを備えること特徴とする乗用型防除機。 In a passenger-type control machine provided with a control unit (35) that controls the amount of sprayed chemicals corresponding to the traveling vehicle speed of forward and backward travel,
The control unit (35) includes a limited spray control for stopping chemical spraying in response to detection of reverse travel, and a reverse spray switch for canceling spray control by the limited spray control and switching to allow chemical spray during reverse travel. 63).
The said control part (35) is provided with the alerting | reporting control which alert | reports by an alerting | reporting means (63a) in the case of chemical | medical solution dispersion | distribution at the time of reverse drive by switching the said reverse spraying switch (63). Riding type control machine.
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