JP2005137316A - Working vehicle - Google Patents

Working vehicle Download PDF

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Publication number
JP2005137316A
JP2005137316A JP2003379348A JP2003379348A JP2005137316A JP 2005137316 A JP2005137316 A JP 2005137316A JP 2003379348 A JP2003379348 A JP 2003379348A JP 2003379348 A JP2003379348 A JP 2003379348A JP 2005137316 A JP2005137316 A JP 2005137316A
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steering
operation tool
operator
turning
steering operation
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JP2003379348A
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JP4126356B2 (en
Inventor
Fumio Yoshimura
文夫 吉邨
Hiromasa Kikuzawa
尋正 菊澤
Takahiko Kamimura
孝彦 上村
Mikiya Shirakata
幹也 白方
Takafumi Akiyama
尚文 秋山
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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  • Harvester Elements (AREA)
  • Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a working vehicle capable of ensuring a forward visual field including a low position in addition to securement of operability of a steering operating tool. <P>SOLUTION: This working vehicle 1 is equipped with a steering operating tool 11a for carrying out at least right and left turning motion of a machine body, an operation panel 13 arranged in front of an operator, a handle bar 14 extended in a vehicle width direction and held by the operator or used for supporting and receiving the operator's body and a front frame 15 for supporting these devices, and a supporting member 16 is arranged in a standing condition on one side end of the front frame 15 and the supporting member 16 supports one side end of the steering operating tool 11a above the operation panel 13 through the supporting member 16 and further supports the handle bar 14 in a state connecting to the other end of the steering operating tool 11a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、作業車に関するものである。   The present invention relates to a work vehicle.

左右旋回走行可能な機体と、機体を操縦するための操作機器を配した運転部とを備えた作業車においては、一般に、特許文献１に示すように、運転台内の前部に、操向操作具、操作パネル、車幅方向に延びるハンドルバー等を備え、これらの機器がフロントフレーム上に構成される。   In a work vehicle including a vehicle body capable of turning left and right and a driving unit provided with an operation device for maneuvering the vehicle body, in general, as shown in Patent Document 1, steering is performed at a front portion in a driver's cab. An operation tool, an operation panel, a handlebar extending in the vehicle width direction, and the like are provided, and these devices are configured on the front frame.

上記操向操作具はパワステレバーと略称され、機体の左右旋回を単一レバーによって行ない、操作パネルは、各種の機器を操縦でき、ハンドルバーは、オペレータが掴むことにより機体の揺れに対してオペレータの身体の安定を確保することができる。   The steering operation tool is abbreviated as a power steering lever, and the aircraft can be turned left and right with a single lever. The operation panel can control various devices, and the handlebar can be operated by the operator against the shaking of the aircraft. Can ensure the stability of the body.

しかし、上記操向操作具は、運転台の前部位置で操作性に優れる一方、前方視界の妨げとなり、特に、前方の低い視野の障害となるので、操作パネルの操作性を損ない、また、機体直前位置の見通し等の支障となることがあった。
特開２０００−２７９０２１号公報 However, the steering operation tool is excellent in operability at the front position of the driver's cab, while hindering the front field of view, and in particular, hindering the low visual field in the front, impairing the operability of the operation panel, This could hinder the prospects of the position just before the aircraft.
JP 2000-279021 A

解決しようとする問題点は、操向操作具の操作性を確保した上で、低い位置を含む前方視野を確保することができる作業車を得ることにある。   The problem to be solved is to obtain a work vehicle that can secure a front view including a low position while ensuring the operability of the steering operation tool.

請求項１に係る発明は、少なくとも機体の左右旋回動作を行う操向操作具と、オペレータの前方に配置する操作パネルと、車幅方向に延びてオペレータが把持したり、オペレータの身体を支え受けるためのハンドルバーと、これらの機器を支えるフロントフレームとを備える作業車において、上記フロントフレームの一側端に支持部材を立設し、この支持部材を介して操作パネルの上方に前記操向操作具の一側端を支持するとともに、前記ハンドルバーを操向操作具の他端に連結して支持するようにしたことを特徴とする。   The invention according to claim 1 is a steering operation tool that performs at least a left-right turning operation of the aircraft, an operation panel disposed in front of the operator, and extends in the vehicle width direction to be gripped by the operator or support the operator's body. In a work vehicle comprising a handlebar for driving and a front frame that supports these devices, a support member is erected on one side end of the front frame, and the steering operation is performed above the operation panel via the support member. One end of the tool is supported, and the handle bar is connected to and supported by the other end of the steering operation tool.

請求項２に係る発明は、請求項１の構成において、前記操向操作具の頂部高さの範囲内で前記支持部材と前記ハンドルバーを設けたことを特徴とする。   According to a second aspect of the present invention, in the configuration of the first aspect, the support member and the handle bar are provided within a range of a top height of the steering operation tool.

請求項３に係る発明は、請求項１または請求項２の構成において、前記操向操作具の後方に近接する位置に、操向操作具を操作時に操作腕や操作手を置くための受台を備えたことを特徴とする。   According to a third aspect of the present invention, in the configuration of the first or second aspect, the pedestal for placing the operating arm or the operating hand when operating the steering operation tool at a position close to the rear of the steering operation tool. It is provided with.

上記構成の発明は、以下の効果を奏する。
上記構成の作業車は、フロントフレームの一側端の支持部材を介して剛性の高い操向操作具を操作パネルの上方に保持したことから、同操向操作具の下方の空間を通して低い位置の前方視界が確保されるとともに、フロントフレームの他側端に及ぶハンドルバーにより、その支持剛性および低い位置の全幅の前方視界を確保することができる。したがって、上記構成の作業車は、操向操作具の操作性とハンドルバーによる安定保持を損なうことなく、フロントフレームの全幅に及ぶ低い位置から運転台直前の前方の見透しが良くなる（請求項１）。 The invention with the above configuration has the following effects.
The work vehicle having the above configuration holds the steering operation tool having high rigidity above the operation panel via the support member at one side end of the front frame. The front field of view can be secured, and the handle bar extending to the other side end of the front frame can secure the support rigidity and the front field of full width at a low position. Therefore, the work vehicle having the above-described configuration improves the front view immediately before the cab from a low position extending over the entire width of the front frame without impairing the operability of the steering operation tool and the stable holding by the handlebar. Item 1).

前記操向操作具のレバーの頂部高さの範囲内で支持部材とハンドルバーを設けた場合は、操向操作具のレバーが周囲の機器に干渉することなく傾動操作することができるので、十分な操作性を確保することができる（請求項２）。   When the support member and the handle bar are provided within the range of the height of the top of the lever of the steering operation tool, the lever of the steering operation tool can be tilted and operated without interfering with surrounding devices. Operability can be ensured (claim 2).

前記操向操作具の後方に近接する位置に、レバー操作時に操作腕や操作手を置くための受台を備えた場合は、受台に腕や手を置いてレバー操作することにより、低い視界を確保しつつ、オペレータの操作腕の負担を軽減することができる（請求項３）。   When a cradle for placing an operating arm or hand during lever operation is provided at a position close to the rear of the steering operation tool, placing the arm or hand on the cradle to operate the lever results in low visibility. It is possible to reduce the burden on the operator's operating arm while securing the above (claim 3).

本発明の実施の形態について、以下に図面に基づいて詳細に説明する。
図１には、本発明を具現化した農業機械であるコンバインの側面図を示している。コンバイン１は、機体を左右旋回走行可能に支持する左右のクローラ２，２を有する機体フレーム２ａ、この機体フレーム２ａの機体前部で昇降可能に刈取動作する刈取装置３、この刈取装置３の後方で機体を操縦するための操作機器を配した運転台４のほか、図示せぬ脱穀部、グレンタンク６、排出オーガ７等を備えて構成される。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a side view of a combine which is an agricultural machine embodying the present invention. The combine 1 includes a machine body frame 2a having left and right crawlers 2 and 2 that support the machine body so as to be able to turn left and right, a reaping device 3 that performs a reaping operation at a front part of the machine body frame 2a so as to be lifted and lowered, In addition to the cab 4 provided with operating devices for maneuvering the aircraft, the threshing unit (not shown), the glen tank 6, the discharge auger 7 and the like are provided.

図２は、本発明の運転台前部の操縦部透視拡大斜視図である。運転台前部の操縦部には、機体の左右旋回と刈取昇降を単一レバーによって操作するためのパワステレバーと略称される操向操作具１１ａ、その後方に近接する位置に、レバー操作時に操作腕や操作手を置くための受台１２、各種の刈取走行機器を操縦するための操作パネル１３、機体の揺れに対してオペレータの身体の安定を確保するために車幅方向に延びるハンドルバー１４、これらの機器を支えるフロントフレーム１５等を備えて構成される。また、操向操作具１１ａの基部には、複合入力装置１１が設けられている。複合入力装置１１内には、操向操作具１１ａを前後方向に傾斜したことを検出するスイッチやポテンショ、左右方向に傾斜したことを検出するスイッチやポテンショが設けられている。   FIG. 2 is a perspective enlarged perspective view of the control unit at the front of the cab according to the present invention. A steering unit 11a, abbreviated as a power steering lever, is used to operate the airframe to the left and right, and to move up and down the mowing with a single lever. A cradle 12 for placing arms and operating hands, an operation panel 13 for maneuvering various cutting and traveling devices, and a handle bar 14 extending in the vehicle width direction to ensure the stability of the operator's body against shaking of the aircraft A front frame 15 that supports these devices is provided. A composite input device 11 is provided at the base of the steering operation tool 11a. In the composite input device 11, there are provided a switch and a potentiometer for detecting that the steering operation tool 11a is tilted in the front-rear direction, and a switch and a potentiometer for detecting that the steering operation tool 11a is tilted in the left-right direction.

詳細には、運転台前部の操縦部の透視正面図と透視側面図をそれぞれ、図３、図４に示すように、機体フレーム２ａからフロントフレーム１５を起設し、このフロントフレーム１５の一側端（図例は右側端）に支持部材１６を立設し、この支持部材１６介して操作パネル１３の上方に見通しのための一定の空間を確保して操向操作具１１ａを保持している。具体的には、操向操作具１１ａの基部側に配置している複合入力装置１１を支持している。この複合入力装置１１とフロントフレーム１５の他側端（図例は左側端）との間にハンドルバー１４を架設する。受台１２は、支持部材１６から延設する。   Specifically, as shown in FIGS. 3 and 4, respectively, a front frame 15 is erected from the fuselage frame 2a, and a front frame 15 is erected. A support member 16 is erected on the side end (right end in the figure), and a steering space 11a is held via the support member 16 by securing a certain space for viewing above the operation panel 13. Yes. Specifically, the composite input device 11 arranged on the base side of the steering operation tool 11a is supported. A handlebar 14 is installed between the composite input device 11 and the other side end (the left side in the illustrated example) of the front frame 15. The cradle 12 extends from the support member 16.

上記構成の運転台は、複合入力装置１１がフロントフレーム１５の一側部の上方に支持部材１６を介して固定され、同複合入力装置１１の下方の空間を通して低い位置の前方視界が確保されるとともに、ハンドルバー１４の支持剛性を確保することができる。したがって、上記構成の運転台は、複合入力装置１１の操作性とハンドルバー１４による安定保持を損なうことなく、フロントフレーム１５の全幅に及ぶ低位視界により運転台直前の前方圃場の見透しが良くなるので、刈取状況を調整しつつ、能率良く刈取り作業を進めることができる。   In the cab of the above configuration, the composite input device 11 is fixed above one side portion of the front frame 15 via a support member 16, and a low front view is secured through a space below the composite input device 11. In addition, the support rigidity of the handle bar 14 can be ensured. Therefore, the cab of the above configuration has a good view of the front field just before the cab due to the low visibility over the entire width of the front frame 15 without impairing the operability of the composite input device 11 and the stable holding by the handlebar 14. Therefore, the cutting operation can be efficiently performed while adjusting the cutting state.

この場合において、複合入力装置１１上部の操向操作具１１ａの頂部高さの範囲内で支持部材１６とハンドルバー１４を設けて高さ寸法Ｈを確保することにより、操向操作具１１ａが周囲の機器に干渉することなく傾動操作することができるので、十分な操作性を確保することができる。また、複合入力装置１１は、その後方位置の受台１２により、低位視界を確保しつつ、オペレータの操作腕の負担を軽減することができる。   In this case, by providing the support member 16 and the handle bar 14 within the range of the top height of the steering operation tool 11a at the top of the composite input device 11, the steering operation tool 11a can be Since the tilting operation can be performed without interfering with the device, sufficient operability can be ensured. Further, the composite input device 11 can reduce the burden on the operator's operating arm while securing a low field of view by the cradle 12 at the rear position.

つぎに、コンバインの旋回走行制御について説明する。コンバインの走行伝動装置２１は、図５の伝動軸展開図に示すように、左右の出力軸２７，２７を介してクローラ２，２に到る左右の伝動系に同速伝動する左右のサイドクラッチ２３，２３をスライド可能に備えたサイドクラッチ軸２２、左右の出力軸２７，２７の間に備えた差動機構２６のデフケースギヤ２６ａを減速する２連クラッチ軸２４を中心に、エンジン動力をプーリ２５ｃに受ける可変油圧ポンプ２５ａと定量油圧モータ２５ｂとによる油圧式無段変速装置、その変速動力を複数段に変速する副変速部２８、この副変速部２８の入力側から作業機出力を分岐する出力プーリ２３ａ等を備えて構成される。２連クラッチ軸２４は、直進用２４ａと旋回用２４ｂのクラッチを備えることにより、副変速部２８の出力側から受ける２速の範囲で速度調節される。   Next, the turning traveling control of the combine will be described. As shown in the transmission shaft development view of FIG. 5, the combined traveling transmission device 21 includes left and right side clutches that transmit at the same speed to the left and right transmission systems reaching the crawlers 2 and 2 via the left and right output shafts 27 and 27. The engine power is driven by pulleys with a side clutch shaft 22 slidably provided on the left and right output shafts 27 and 27 and a differential clutch gear 26a of the differential mechanism 26 provided between the left and right output shafts 27. 25c, a hydraulic continuously variable transmission using a variable hydraulic pump 25a and a fixed hydraulic motor 25b, a sub-transmission unit 28 for shifting the transmission power to a plurality of stages, and an output of the work implement is branched from the input side of the sub-transmission unit 28. An output pulley 23a and the like are provided. The double clutch shaft 24 is adjusted in speed within the range of the second speed received from the output side of the sub-transmission unit 28 by including a clutch for straight traveling 24a and a clutch for turning 24b.

機体を旋回する際は、操向操作具を左または右の旋回側に傾動することにより、旋回内側のサイドクラッチ２３の伝動が遮断されるとともに、２連クラッチ軸２４の直進用クラッチ２４ａが切れ、傾動角に応じて旋回用クラッチ２４ｂが押圧されて２連クラッチ軸２４が減速調節される。その結果、操向操作具の傾動角に応じてデフケースギヤ２６ａが減速調節され、旋回内側の出力軸２７のスプロケット２７ａから動力を受けるクローラ２の回転が調節されることにより、機体が緩旋回、ブレーキ旋回、スピン旋回の動作をする。   When turning the airframe, by tilting the steering operation tool to the left or right turning side, the transmission of the side clutch 23 inside the turning is cut off, and the straight clutch 24a of the double clutch shaft 24 is cut off. The turning clutch 24b is pressed according to the tilt angle, and the double clutch shaft 24 is decelerated and adjusted. As a result, the differential case gear 26a is decelerated and adjusted according to the tilt angle of the steering operation tool, and the rotation of the crawler 2 that receives power from the sprocket 27a of the output shaft 27 on the inside of the turn is adjusted, so that the body turns slowly. Performs brake turning and spin turning.

制御部は、図６の入出力信号系統図（第１例）に示すように、機体を左右旋回させる操向操作具（以下、パワステレバーという）のレバーポジションを検知するパワステレバーポジションセンサ３２、左右の回転センサ３３ａ，３３ｂ、スピンスイッチ３４の信号を入力し、また、左右のサイドクラッチソレノイド３５ａ，３５ｂ、比例圧力ソレノイド３６の駆動指令を出力するようにそれぞれ接続する。パワステレバーポジションセンサ３２は、左右の傾動位置に応じて旋回動作信号を送出する。左右の回転センサ３３ａ，３３ｂは、対応するクローラの速度信号を送出する。スピンスイッチ３４は、旋回内側を逆行するいわゆるスピンターンの旋回動作信号を送出する。左右のサイドクラッチソレノイド３５ａ，３５ｂは、対応する側のサイドクラッチを遮断動作させる。比例圧力ソレノイド３６は、クラッチの油圧調節により２連クラッチ軸２４を減速調節する。   As shown in the input / output signal system diagram (first example) in FIG. 6, the control unit includes a power steering lever position sensor 32 that detects a lever position of a steering operation tool (hereinafter referred to as a power steering lever) that turns the aircraft from side to side. The left and right rotation sensors 33a and 33b and the spin switch 34 are input, and the left and right side clutch solenoids 35a and 35b and the proportional pressure solenoid 36 are driven so as to output driving commands. The power steering lever position sensor 32 sends a turning motion signal in accordance with the left and right tilt positions. The left and right rotation sensors 33a and 33b send the corresponding crawler speed signals. The spin switch 34 sends a so-called spin-turn turning operation signal that reverses the inside of the turn. The left and right side clutch solenoids 35a and 35b operate to cut off the corresponding side clutch. The proportional pressure solenoid 36 decelerates and adjusts the double clutch shaft 24 by adjusting the hydraulic pressure of the clutch.

制御部３１の詳細な旋回制御処理は、図７の動作信号のタイミングチャート（第１例）に示すように、左（または右）のスピン旋回の際に、本実施例では、パワステレバーを倒してスピン以外で旋回中において、スピンスイッチを押した時Ｔ１から一定時間Δ１で徐々にスピン圧Ｐｓまで昇圧する。このように制御することにより、一気にスピン圧Ｐｓまで操舵圧を昇圧することによるショックが抑えられる。また、左（または右）のスピン旋回後にパワステレバーを急速に中立に戻した時Ｔ２は、一定時間Δ２を遅らせてサイドクラッチ２３を接続し、その間の操舵圧をほぼ直進可能な低圧Ｐ２とするように構成する。このように制御することにより、スピンから急速に中立に戻してもサイドクラッチ２３の接続が遅れるので、クローラ２が逆転から一気に直進に戻るショックが低減されるとともに、低圧Ｐ２の操舵圧により機体のふらつきを防止することができる。これは、スピンに限らず、旋回操作の後に急速に中立に戻した場合に共通して適用することができ、そのような旋回操作後のオペレータへのショックが抑えられて安定した運転環境を確保することができる。   As shown in the timing chart (first example) of the operation signal in FIG. 7, the detailed turning control process of the control unit 31 is performed by tilting the power steering lever in the present embodiment during the left (or right) spin turning. During a turn other than spin, when the spin switch is pressed, the pressure is gradually increased to the spin pressure Ps in a certain time Δ1 from T1. By controlling in this way, a shock caused by increasing the steering pressure to the spin pressure Ps at a stretch can be suppressed. Further, when the power steering lever is rapidly returned to neutral after the left (or right) spin turn, the side clutch 23 is connected with a delay of Δ2 for a certain period of time, and the steering pressure during that time is set to a low pressure P2 capable of traveling substantially straight. Configure as follows. By controlling in this way, the connection of the side clutch 23 is delayed even if the neutral state is rapidly returned from the spin, so that the shock that the crawler 2 returns straight forward from the reverse rotation is reduced and the steering pressure of the low pressure P2 reduces the airframe. It is possible to prevent wobbling. This is not limited to spin, but can be applied in common when turning neutral quickly after a turning operation, and the shock to the operator after such a turning operation is suppressed to ensure a stable operating environment. can do.

また、旋回内側のクローラを前進低速に回転させる緩旋回モード（湿田モード）の旋回制御処理は、図８の動作信号のタイミングチャート（第２例）に示すように、モード切換スイッチ信号を緩旋回モードに切替えてパワステレバーを左（または右）に倒して旋回後、再び中立に戻した時Ｔに、一定時間Δを遅らせてサイドクラッチ２３を接続し、その間の操舵圧をほぼ直進可能な低圧Ｐとするように構成する。このように制御することにより、小刻みにパワステレバーを操作して旋回する場合に、サイドクラッチ２３を切ったままで直進駆動力を保つことから、パワステレバーが中立になる度にサイドクラッチ２３を接続することによるショックを抑えることができる。   In addition, in the slow turning mode (wet paddy mode) turning control process in which the crawler inside the turning is rotated forward and at a low speed, the mode changeover switch signal is turned slowly as shown in the timing chart of the operation signal (second example) in FIG. After switching to the mode and turning the power steering lever to the left (or right) and turning it back to neutral again, the side clutch 23 is connected with a delay of Δ for a certain period of time, and the steering pressure during that time can be almost straight P is configured. By controlling in this way, when turning by turning the power steering lever in small increments, the straight clutch driving force is maintained with the side clutch 23 disconnected, so the side clutch 23 is connected each time the power steering lever becomes neutral. Can reduce the shock.

また、旋回操作後に続けて反対側へ旋回する際の制御処理は、図９の動作信号のタイミングチャート（第３例）に示すように、左（または右）の旋回操作した後で反対方向に旋回操作した時Ｔから一定時間Δを遅らせて反対側の操舵圧を昇圧するように構成する。もちろん、この場合、右側のサイドクラッチが切れた後から操舵圧を昇圧するように、一定時間Δを設定しておかなくてはならない。このように制御することにより、サイドクラッチ２３が切れないまま昇圧した時のメカロックによるエンジン停止を防止することができる。   Further, the control processing when turning to the opposite side after the turning operation is performed in the opposite direction after the left (or right) turning operation, as shown in the timing chart of the operation signal (third example) in FIG. The steering pressure on the opposite side is increased by delaying a certain time Δ from the time T when the turning operation is performed. Of course, in this case, a certain time Δ must be set so that the steering pressure is increased after the right side clutch is disengaged. By controlling in this way, it is possible to prevent the engine from being stopped due to a mechanical lock when the pressure is increased without disengaging the side clutch 23.

また、刈取昇降操作中の旋回制御処理は、図１０の動作信号のタイミングチャート（第４例）に示すように、パワステレバーを前後に動かして刈取部を昇降させる信号が入力されると、この刈取上昇（または下降）スイッチのオンＴ１（Ｔ３）からオフＴ２（Ｔ４）までの間について、パワステレバーの旋回側（左右方向）のニュートラル幅を「標準」から「広」に拡大するように構成する。このように制御することにより、刈取昇降操作中に間違ってパワステレバーを左右に倒すことがあっても、不感帯の拡大によってその範囲内の旋回操作を検出しないので、不用意に機体が左右に動く事態を防止できる。特に、未刈穀稈部への進入の際の刈取下降時においては、細かい条合わせを精度よく行うことができる。   In addition, as shown in the timing chart of the operation signal in FIG. 10 (fourth example), the turning control process during the lifting and lowering operation is performed when a signal for moving the power steering lever back and forth to raise and lower the cutting unit is input. It is configured so that the neutral width on the turning side (left and right direction) of the power steering lever is expanded from “standard” to “wide” between the cutting up (or down) switch on T1 (T3) and off T2 (T4). To do. By controlling in this way, even if the power steering lever is accidentally tilted to the left or right during the cutting lift operation, the turning operation within that range is not detected due to the expansion of the dead zone, so the aircraft moves inadvertently. The situation can be prevented. In particular, fine alignment can be performed with high precision when the cutting is lowered when entering the uncut grain ridge.

本発明のコンバインの運転台は、操向操作具の操作性を確保した上で、低い位置を含む前方視野を確保して能率良く刈取り作業を進めることができる。   The cab of the combine according to the present invention can ensure the operability of the steering operation tool, and can ensure a forward visual field including a low position and efficiently perform the cutting operation.

本発明を具現化したコンバインの側面図である。It is a side view of a combine which embodies the present invention. 本発明の運転台前部の操縦部透視拡大斜視図である。It is a steering part see-through | perspective expansion perspective view of the cab front part of this invention. 運転台前部の操縦部の透視正面図である。It is a see-through | perspective front view of the control part of a cab front part. 運転台前部の操縦部の透視側面図である。It is a see-through | perspective side view of the control part of a cab front part. コンバインの走行伝動装置の伝動軸展開図である。It is a transmission shaft expansion | deployment figure of the traveling drive device of a combine. 制御部の入出力信号系統図（第１例）である。It is an input-output signal system diagram (1st example) of a control part. 制御部の動作信号のタイミングチャート（第１例）である。It is a timing chart (1st example) of the operation signal of a control part. 制御部の動作信号のタイミングチャート（第２例）である。It is a timing chart (2nd example) of the operation signal of a control part. 制御部の動作信号のタイミングチャート（第３例）である。It is a timing chart (3rd example) of the operation signal of a control part. 制御部の動作信号のタイミングチャート（第４例）である。It is a timing chart (4th example) of the operation signal of a control part.

符号の説明Explanation of symbols

１ コンバイン（作業車）
２ クローラ
３ 刈取装置
４ 運転台
１１ 複合入力装置
１１ａ 操向操作具
１２ 受台
１３ 操作パネル
１４ ハンドルバー
１５ フロントフレーム
１６ 支持部材
２１ 走行伝動装置
２２ サイドクラッチ軸
２３ サイドクラッチ
２４ ２連クラッチ軸
２５ デフケースギヤ
２６ 差動機構
２７ 出力軸
３１ 制御部
３２ パワステレバーポジションセンサ
３３ａ，３３ｂ 回転センサ
３４ スピンスイッチ
３５ａ，３５ｂ サイドクラッチソレノイド
３６ 比例圧力ソレノイド
Ｈ 差寸法
Ｐｓ スピン圧
Δ，Δ１，Δ２ 一定時間 1 Combine (work vehicle)
2 crawler 3 reaping device 4 cab 11 composite input device 11a steering operation tool 12 cradle 13 operation panel 14 handlebar 15 front frame 16 support member 21 travel transmission device 22 side clutch shaft 23 side clutch 24 double clutch shaft 25 differential case Gear 26 Differential mechanism 27 Output shaft 31 Control unit 32 Power steering lever position sensor 33a, 33b Rotation sensor 34 Spin switch 35a, 35b Side clutch solenoid 36 Proportional pressure solenoid H Differential dimension Ps Spin pressure Δ, Δ1, Δ2 Fixed time

Claims (3)

少なくとも機体の左右旋回動作を行う操向操作具１１ａと、オペレータの前方に配置する操作パネル１３と、車幅方向に延びてオペレータが把持したり、オペレータの身体を支え受けるためのハンドルバー１４と、これらの機器を支えるフロントフレーム１５とを備える作業車において、
上記フロントフレーム１５の一側端に支持部材１６を立設し、この支持部材１６を介して操作パネル１３の上方に前記操向操作具１１ａの一側端を支持するとともに、前記ハンドルバー１４を操向操作具１１ａの他端に連結して支持するようにしたことを特徴とする作業車。 A steering operation tool 11a that performs at least a left-right turning operation of the aircraft, an operation panel 13 disposed in front of the operator, a handle bar 14 that extends in the vehicle width direction and is gripped by the operator or supports the operator's body In a work vehicle equipped with a front frame 15 that supports these devices,
A support member 16 is erected on one side end of the front frame 15, and the one side end of the steering operation tool 11 a is supported above the operation panel 13 via the support member 16, and the handle bar 14 is A work vehicle characterized by being connected to and supported by the other end of the steering operation tool 11a. 前記操向操作具１１ａの頂部高さの範囲内で前記支持部材と前記ハンドルバーを設けたことを特徴とする請求項１記載の作業車。   The work vehicle according to claim 1, wherein the support member and the handle bar are provided within a range of a top height of the steering operation tool 11a. 前記操向操作具の後方に近接する位置に、操向操作具を操作時に操作腕や操作手を置くための受台を備えたことを特徴とする請求項１または請求項２記載の作業車。
The work vehicle according to claim 1 or 2, further comprising a cradle for placing an operating arm or an operating hand when operating the steering operation tool at a position close to the rear of the steering operation tool. .
JP2003379348A 2003-11-10 2003-11-10 Combine Expired - Fee Related JP4126356B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007143532A (en) * 2005-11-30 2007-06-14 Iseki & Co Ltd Working vehicle
JP2008182946A (en) * 2007-01-30 2008-08-14 Iseki & Co Ltd Combine harvester
KR101131818B1 (en) 2010-03-12 2012-03-30 이세키노우키가부시키가이샤 Combine

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JPS4921135Y1 (en) * 1970-09-07 1974-06-06
JPH09156533A (en) * 1995-12-05 1997-06-17 Iseki & Co Ltd Traveling and turning device for combine
JP2000037139A (en) * 1998-07-22 2000-02-08 Mieko Sato Planter supporter
JP2000279021A (en) * 1999-03-30 2000-10-10 Kubota Corp Structure of operating part of harvester
JP2001251937A (en) * 2000-03-15 2001-09-18 Kubota Corp Combine harvester
JP2003267255A (en) * 2002-03-15 2003-09-25 Iseki & Co Ltd Traveling and transmission device of combine
JP2003274707A (en) * 2002-03-25 2003-09-30 Iseki & Co Ltd Directional control device of combine harvester, etc.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4921135Y1 (en) * 1970-09-07 1974-06-06
JPH09156533A (en) * 1995-12-05 1997-06-17 Iseki & Co Ltd Traveling and turning device for combine
JP2000037139A (en) * 1998-07-22 2000-02-08 Mieko Sato Planter supporter
JP2000279021A (en) * 1999-03-30 2000-10-10 Kubota Corp Structure of operating part of harvester
JP2001251937A (en) * 2000-03-15 2001-09-18 Kubota Corp Combine harvester
JP2003267255A (en) * 2002-03-15 2003-09-25 Iseki & Co Ltd Traveling and transmission device of combine
JP2003274707A (en) * 2002-03-25 2003-09-30 Iseki & Co Ltd Directional control device of combine harvester, etc.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007143532A (en) * 2005-11-30 2007-06-14 Iseki & Co Ltd Working vehicle
JP2008182946A (en) * 2007-01-30 2008-08-14 Iseki & Co Ltd Combine harvester
KR101131818B1 (en) 2010-03-12 2012-03-30 이세키노우키가부시키가이샤 Combine

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