JPH07119710A - Traveling operation device - Google Patents
Traveling operation deviceInfo
- Publication number
- JPH07119710A JPH07119710A JP29123493A JP29123493A JPH07119710A JP H07119710 A JPH07119710 A JP H07119710A JP 29123493 A JP29123493 A JP 29123493A JP 29123493 A JP29123493 A JP 29123493A JP H07119710 A JPH07119710 A JP H07119710A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- pilot
- operating
- lever
- working machine
- 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
- Operation Control Of Excavators (AREA)
- Component Parts Of Construction Machinery (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は主として油圧ショベルに
おける走行操作装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention mainly relates to a traveling operating device for a hydraulic excavator.
【０００２】[0002]
【従来の技術】図８は従来の油圧ショベルの運転席の斜
視図であり、１はシート、２は右作業機操作レバー、３
は左作業機操作レバー、４はブレード操作レバー、７は
右走行レバー、８は左走行レバーである。作業時には左
右の作業機操作レバー２、３を操作することによりブー
ム、アーム、バケット等の作業機の操作、および上部旋
回体の旋回操作が可能であり、ブレード操作レバー４を
操作することによりブレードの昇降が制御できる。走行
時には左右の走行レバー７、８を操作する。すなわち、
右走行レバー７を前傾すると右履帯は前進し、後傾する
と右履帯は後進する。左走行レバーも同様に左側履帯を
制御可能であり、左右の走行レバー７、８を操作するこ
とにより車両の前後進、旋回操作を行う。2. Description of the Related Art FIG. 8 is a perspective view of a driver's seat of a conventional hydraulic excavator, where 1 is a seat, 2 is a right working machine operating lever, and 3
Is a left work implement operating lever, 4 is a blade operating lever, 7 is a right traveling lever, and 8 is a left traveling lever. At the time of work, it is possible to operate a work machine such as a boom, an arm, or a bucket, and a swing operation of an upper swing body by operating the left and right work machine operation levers 2 and 3. By operating the blade operation lever 4, the blade is operated. You can control the up and down of. When traveling, the left and right traveling levers 7 and 8 are operated. That is,
When the right running lever 7 is tilted forward, the right crawler belt moves forward, and when tilted backward, the right crawler belt moves backward. Similarly, the left travel lever can control the left crawler belt, and the left and right travel levers 7 and 8 are operated to perform forward / backward movement and turning operation of the vehicle.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、レバー
の位置の関係から、作業機操作レバー２、３を操作する
場合にはオペレータはシート１の背当てに背中をもたせ
た楽な姿勢で操作が可能であるが、走行レバー７、８を
操作する場合には走行レバー７、８が前方にあるため、
オペレータはやや前傾姿勢で操作するようになる。その
ため、たとえば、ブレードによる土工作業等で長時間走
行操作を行うと、オペレータは長時間前傾姿勢で作業す
ることとなり、オペレータにとって重労働となり、疲労
するという問題がある。However, due to the positional relationship of the levers, the operator can operate the working machine operating levers 2 and 3 in a comfortable posture with the back resting on the seat 1. However, when operating the traveling levers 7 and 8, since the traveling levers 7 and 8 are at the front,
The operator will operate in a slightly forward leaning posture. Therefore, for example, when a long-time traveling operation is performed by earthworking with a blade or the like, the operator must work in a forward leaning posture for a long time, which causes heavy labor and fatigue for the operator.
【０００４】本発明は上記の問題点に着目してなされた
もので、オペレータの作業姿勢が悪くなることなく、疲
労しないような走行操作装置を提供することを目的とし
ている。The present invention has been made in view of the above problems, and it is an object of the present invention to provide a traveling operation device which does not cause the operator's work posture to deteriorate and does not cause fatigue.
【０００５】[0005]
【課題を解決するための手段】上記の目的達成のため、
本発明に係る走行操作装置においては、油圧により作業
機操作および走行操作を行う作業車両において、オペレ
ータの手元に配設された作業機操作レバーにより操作さ
れるパイロット弁と、前記パイロット弁からのパイロッ
ト圧により操作される作業機操作弁とを接続するパイロ
ット回路上に、前記パイロット回路を前記パイロット弁
と走行操作弁とを接続する回路に切り換える切換弁を介
装せることを特徴としている。[Means for Solving the Problems] To achieve the above object,
In a travel operating device according to the present invention, in a work vehicle for operating and operating a work machine by hydraulic pressure, a pilot valve operated by a work machine operation lever arranged at the operator's hand, and a pilot valve from the pilot valve It is characterized in that a switching valve for switching the pilot circuit to a circuit connecting the pilot valve and the traveling operation valve is interposed on a pilot circuit connecting the working machine operation valve operated by pressure.
【０００６】さらに、本発明に係る走行操作装置の第２
は、オペレータの手元に配設された作業機操作レバー
と、作業機操作レバーのストロークを示す電気信号を演
算出力する手段とを設け、前記演算出力する手段によ
り、作業機操作弁か走行操作弁かのいずれかを制御する
選択手段を設けたことを特徴とする走行操作装置。Furthermore, the second aspect of the traveling operation device according to the present invention.
Is equipped with a working machine operating lever arranged at the operator's hand and means for calculating and outputting an electric signal indicating the stroke of the working machine operating lever, and the working machine operating valve or the traveling operating valve is operated by the calculating and outputting means. A travel operation device comprising a selection means for controlling either of the above.
【０００７】[0007]
【作用】上記構成によれば、油圧作動式の作業車両の、
作業機操作レバーにより操作されるパイロット弁と作業
機操作弁とを接続するパイロット回路上に、パイロット
弁と走行操作弁とを接続する回路に切り換える切換弁を
設けたため、切換弁を切り換えることにより、作業機操
作弁により作業機操作、および走行操作の両方を任意に
選択して行うことができる。According to the above construction, the hydraulically operated work vehicle is
On the pilot circuit that connects the pilot valve operated by the work machine operation lever and the work machine operation valve, a switching valve that switches to a circuit that connects the pilot valve and the travel operation valve is provided. Both the work machine operation and the traveling operation can be arbitrarily selected and performed by the work machine operation valve.
【０００８】また、オペレータの手元に配設された作業
機操作レバーと、作業機操作レバーのストロークを示す
電気信号を演算出力する手段とを設け、前記演算出力す
る手段により、作業機操作弁か走行操作弁かのいずれか
を制御する選択手段を設けたので、選択手段により作業
機操作弁か走行操作弁かを選択して制御することができ
る。Further, a working machine operating lever disposed at the operator's hand and means for calculating and outputting an electric signal indicating the stroke of the working machine operating lever are provided, and the means for calculating and outputting the working machine control valve Since the selection means for controlling either the travel operation valve is provided, it is possible to select and control the working machine operation valve or the travel operation valve by the selection means.
【０００９】[0009]
【実施例】以下に、本発明に係る走行操作装置の実施例
について、図面を参照して説明する。図１は走行操作装
置の回路図であり、左作業機操作レバー３に連動するレ
バー装置１０は４個のパイロット弁１１、１２、１３、
１４を有している。レバー装置１０はモノレバー方式と
なっており、左作業機操作レバー３を前傾すればパイロ
ット弁１１が作用し、後傾すればパイロット弁１２が作
用し、右傾すればパイロット弁１３が、左傾すればパイ
ロット弁１４が作用する。また、左作業機操作レバー３
を斜め方向に傾ければ２つのパイロット弁が同時に作用
するようになっている。パイロット弁１１、１２はアー
ム操作弁２０とそれぞれパイロット回路２２、２３によ
り接続しており、パイロット弁１３、１４は旋回操作弁
２１とそれぞれパイロット回路２４、２５により接続し
ている。パイロット回路２２、２３上には電磁切換弁３
０が介装されており、パイロット回路２４、２５上には
電磁切換弁３１が介装されている。電磁切換弁３０およ
び３１は切換スイッチ３７によりＡ、Ｂの位置に切り換
えられるようになっている。電磁切換弁３０と右走行操
作弁４０とは回路３２、３３によりセンタスイベルジョ
イント３６を介して接続しており、電磁操作弁３１は左
走行操作弁４１とは回路３４、３５によりセンタスイベ
ルジョイント３６を介して接続している。左右の走行操
作弁４０、４１は油圧ポンプ４４と右側履帯４５を駆動
する右油圧モータ４２、および左側履帯４６を駆動する
左油圧モータ４３との回路の正逆転の切り換えを行う。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of a traveling operation device according to the present invention will be described below with reference to the drawings. FIG. 1 is a circuit diagram of the travel operating device. A lever device 10 that interlocks with the left work implement operating lever 3 includes four pilot valves 11, 12, 13,
Have fourteen. The lever device 10 is a mono-lever system, and the pilot valve 11 acts when the left work implement operating lever 3 is tilted forward, the pilot valve 12 acts when tilted backward, and the pilot valve 13 tilts left when tilted right. For example, the pilot valve 14 operates. In addition, the left work implement control lever 3
If you incline diagonally, two pilot valves will act simultaneously. The pilot valves 11 and 12 are connected to the arm operation valve 20 by pilot circuits 22 and 23, respectively, and the pilot valves 13 and 14 are connected to the swing operation valve 21 by pilot circuits 24 and 25, respectively. An electromagnetic switching valve 3 is provided on the pilot circuits 22 and 23.
0 is installed, and an electromagnetic switching valve 31 is installed on the pilot circuits 24 and 25. The electromagnetic switching valves 30 and 31 can be switched to positions A and B by a switching switch 37. The electromagnetic switching valve 30 and the right traveling operation valve 40 are connected by the circuits 32 and 33 via the center swivel joint 36, and the electromagnetic operation valve 31 is connected to the left traveling operation valve 41 by the circuits 34 and 35 by the center swivel joint 36. Connected through. The left and right traveling operation valves 40, 41 switch the circuit between a hydraulic pump 44, a right hydraulic motor 42 that drives the right crawler belt 45, and a left hydraulic motor 43 that drives the left crawler belt 46 between forward and reverse rotation.
【００１０】図２（ａ）は運転席の第１実施例の斜視図
であり、シート１の右側には右作業機操作レバー２が、
左側には左作業機操作レバー３が装着されている。４は
ブレード操作レバーである。左作業機操作レバー３のノ
ブ５の先端には切換スイッチ３７が設けられている。図
２（ｂ）は運転席の第２実施例の左作業機レバー３部分
の斜視図であり、左作業機レバー３の下方に設けられて
いるスイッチパネル６には切換スイッチ３７が装着され
ている。FIG. 2A is a perspective view of the first embodiment of the driver's seat, in which the right working machine operating lever 2 is provided on the right side of the seat 1.
A left work implement operating lever 3 is mounted on the left side. Reference numeral 4 is a blade operating lever. A changeover switch 37 is provided at the tip of the knob 5 of the left work implement operating lever 3. FIG. 2B is a perspective view of the left work implement lever 3 portion of the second embodiment of the driver's seat, and the changeover switch 37 is attached to the switch panel 6 provided below the left work implement lever 3. There is.
【００１１】つぎに作用について説明する。図１におい
て切換スイッチ３７がＯＦＦのときには電磁切換弁３
０、３１はＡの位置にあり、左作業機操作レバー３のレ
バー装置１０のパイロット回路２２、２３および２４、
２５はアーム操作弁２０および旋回操作弁２１と接続し
ている。したがって、図３に示すように、左作業機操作
レバー３を前に倒すとアームダンプ、後に倒すとアーム
掘削、右に倒すと右旋回、左に倒すと左旋回となる。切
換スイッチ３７をＯＮにすると電磁切換弁３０、３１は
Ｂの位置になり、レバー装置１０のパイロット回路２
２、２３および２４、２５は回路３２、３３および３
４、３５と接続し、左右の走行操作弁４０、４１と接続
する。したがって、図４に示すように、左作業機レバー
３を前に倒すと右側履帯４５が前進して車両は左曲がり
となり、後に倒すと左側履帯４６が前進して車両は右曲
がりとなる。左作業機レバー３を右に倒すと車両は右曲
がりとなり、左に倒すと左曲がりとなる。左作業機操作
レバー３を右斜め前に倒すと両側の履帯４５、４６は前
進して車両は前進し、左斜め後ろに倒すと車両は後進す
る。左作業機操作レバー３を左斜め前に倒すと、右側履
帯４５は前進し、左側履帯４６は後進して車両は左スピ
ンターンし、右斜め後に倒すと車両は右スピンターンす
る。Next, the operation will be described. In FIG. 1, when the selector switch 37 is OFF, the solenoid selector valve 3
0 and 31 are in the position A, and the pilot circuits 22, 23 and 24 of the lever device 10 of the left work implement operating lever 3 are
25 is connected to the arm operation valve 20 and the swing operation valve 21. Therefore, as shown in FIG. 3, when the left work implement operating lever 3 is tilted forward, arm dump is performed, when tilted backward, arm excavation is performed, when tilted right, right rotation is performed, and when left, left rotation is performed. When the changeover switch 37 is turned on, the electromagnetic changeover valves 30, 31 are set to the B position, and the pilot circuit 2 of the lever device 10 is
2, 23 and 24, 25 are circuits 32, 33 and 3
4, 35, and the left and right traveling operation valves 40, 41. Therefore, as shown in FIG. 4, when the left work implement lever 3 is tilted forward, the right crawler belt 45 moves forward and the vehicle turns left, and when it is tilted backward, the left crawler belt 46 moves forward and the vehicle turns right. When the left work implement lever 3 is tilted to the right, the vehicle turns to the right, and when it is tilted to the left, it turns to the left. When the left work implement operating lever 3 is tilted forward diagonally to the right, the crawler belts 45 and 46 on both sides move forward and the vehicle moves forward, and when tilted diagonally left backward, the vehicle moves backward. When the left work implement control lever 3 is tilted diagonally forward left, the right crawler belt 45 moves forward, the left crawler belt 46 reverses, the vehicle spins left, and when tilted diagonally right backward, the vehicle spins right.
【００１２】次に、本発明に係る走行操作装置の他の実
施例として、電気レバーを用いた例について説明する。
図５は走行操作装置の回路図であり、図中、図１から図
４に示す符号と同じ符号は同じ装置、部品等を示す。左
作業機操作レバー３に連動するレバー装置５０は２個の
ポテンショメータ５１、５２を有している。レバー装置
６０はモノレバー方式となっており、左作業機操作レバ
ー３を前斜、後斜すればポテンショメータ５１はその操
作量に比例した電気信号を発生させ、右斜、左斜すれば
ポテンショメータ５２はその操作量に比例した電気信号
を発生させる。また、左操作レバー３を斜め方向に傾け
れば２つのポテンショメータ５１，５２がその操作量に
比例した電気信号を発生させる。ポテンショメータ５
１，５２が発生する電気信号は演算装置６０に入力さ
れ、切換スイッチ３７のＯＮ、ＯＦＦ信号も演算装置６
０に入力される。切換スイッチ３７がＯＦＦのとき、演
算装置６０は回路６１、６２により電磁比例式ソレノイ
ド弁であるアーム操作弁７０に、回路６３、６４により
電磁比例式ソレノイド弁である旋回操作弁７１にそれぞ
れ接続される。切換スイッチ３７がＯＮのとき、演算装
置６０は回路６５、６６によりセンタスイベルジョイン
ト７３を介して電磁比例式ソレノイド弁である右走行操
作弁８０に、回路６７、６８によりセンタスイベルジョ
イント７３を介して電磁比例式ソレノイド弁である左走
行操作弁８１にそれぞれ接続される。Next, an example using an electric lever will be described as another embodiment of the traveling operation device according to the present invention.
FIG. 5 is a circuit diagram of the traveling operation device, in which the same reference numerals as those shown in FIGS. 1 to 4 denote the same devices, parts and the like. The lever device 50 that interlocks with the left work implement operating lever 3 has two potentiometers 51 and 52. The lever device 60 is of a mono-lever type, and if the left work implement operating lever 3 is tilted forward or backward, the potentiometer 51 generates an electric signal proportional to the operation amount, and if tilted right or left, the potentiometer 52 is changed. An electric signal proportional to the manipulated variable is generated. If the left operation lever 3 is tilted in an oblique direction, the two potentiometers 51 and 52 generate an electric signal proportional to the operation amount. Potentiometer 5
The electric signals generated by 1, 52 are input to the arithmetic unit 60, and the ON / OFF signals of the changeover switch 37 are also input to the arithmetic unit 6.
Input to 0. When the changeover switch 37 is OFF, the arithmetic unit 60 is connected to the arm operation valve 70, which is an electromagnetic proportional solenoid valve, by the circuits 61 and 62, and to the swing operation valve 71, which is an electromagnetic proportional solenoid valve, by the circuits 63 and 64, respectively. It When the changeover switch 37 is ON, the arithmetic unit 60 uses the circuits 65 and 66 through the center swivel joint 73 to the right traveling operation valve 80 which is an electromagnetic proportional solenoid valve, and the circuits 67 and 68 through the center swivel joint 73. The left traveling operation valve 81, which is an electromagnetic proportional solenoid valve, is connected to each.
【００１３】つぎに本実施例の作用について説明する。
図５において切換スイッチ３７がＯＦＦのとき左作業機
操作レバー３を例えば前に倒すかまたは後に倒すと演算
装置６０は図６に示すように作業機操作レバー３の操作
量をレバー入力（横軸）として、演算出力電圧ｅs （又
は演算出力電流ｉs ）（縦軸）を回路６１、６２を介し
てアーム操作弁７０に出力する。出力に不感帯を設けて
いるが、場合によっては設けなくても良い。演算出力電
圧ｅまたは演算出力電流ｉでアーム操作弁７０のスプー
ルが作動してアームダンプまたはアーム掘削となる。左
作業機操作レバー３を例えば右に倒すかまたは左に倒す
と演算装置６０は図７に示すように左作業機操作レバー
３の操作量をレバー入力（横軸）として、演算出力電圧
ｅb （又は演算出力電流ｉb ）（縦軸）を回路６３、６
４を介して旋回操作弁７１に出力する。出力に不感帯を
設けているが、場合によっては設けなくても良い。演算
出力電圧ｅまたは演算出力電流ｉで電磁比例ソレノイド
弁である旋回操作弁７１のスプールが作動して右旋回か
または左旋回となる。Next, the operation of this embodiment will be described.
In FIG. 5, when the changeover switch 37 is OFF, if the left work implement control lever 3 is tilted forward or backward, for example, the arithmetic unit 60 inputs the operation amount of the work implement control lever 3 to the lever input (horizontal axis) as shown in FIG. ), The calculation output voltage e s (or the calculation output current i s ) (vertical axis) is output to the arm operation valve 70 via the circuits 61 and 62. The dead zone is provided in the output, but it may not be provided in some cases. The spool of the arm operation valve 70 is actuated by the operation output voltage e or the operation output current i to perform arm dumping or arm excavation. As defeat left working machine operating lever 3 on or left tilted example to the right and the arithmetic unit 60 is a lever input an operation amount of the left working machine operating lever 3 as shown in FIG. 7 (horizontal axis), calculated output voltage e b (Or the calculation output current i b ) (vertical axis) as the circuits 63, 6
4 to the turning operation valve 71. The dead zone is provided in the output, but it may not be provided in some cases. With the calculated output voltage e or the calculated output current i, the spool of the swing operation valve 71, which is an electromagnetic proportional solenoid valve, operates to turn right or left.
【００１４】つぎに図５において切換スイッチ３７がＯ
Ｎのときは演算装置６０は回路６５、６６および回路６
７、６８を介して左右の走行操作８０、８１と接続す
る。したがって、図４に示すように、左作業機操作レバ
ー３を前に倒すと右履帶４５が前進して車両は左曲がり
となり、後に倒すと左履帶４６が前進して車両は右曲が
りとなる。左作業機レバー３を右に倒すと車両は右曲が
りとなり、左に倒すと左曲がりとなる。左作業機操作レ
バー３を右斜め前に倒すと両側の履帶４５、４６は前進
して車両は前進し、左斜め後ろに倒すと車両は後進す
る。左作業機操作レバー３を左斜め前に倒すと、右側履
帶４５は前進し、左側履帶４６は後進して車両は左スピ
ンターンする。Next, in FIG. 5, the changeover switch 37 is turned on.
When it is N, the arithmetic unit 60 has the circuits 65 and 66 and the circuit 6
The left and right traveling operations 80, 81 are connected via 7, 68. Therefore, as shown in FIG. 4, when the left work implement operating lever 3 is tilted forward, the right shoe 45 moves forward and the vehicle turns left, and when it is pushed backward, the left shoe 46 moves forward and the vehicle turns right. When the left work implement lever 3 is tilted to the right, the vehicle turns to the right, and when it is tilted to the left, it turns to the left. When the left work implement control lever 3 is tilted forward to the right, the shoes 45 and 46 on both sides move forward and the vehicle moves forward, and when tilted backward to the left, the vehicle moves backward. When the left work implement control lever 3 is tilted diagonally to the left, the right shoe 45 moves forward, the left shoe 46 moves backward, and the vehicle spins left.
【００１５】[0015]
【発明の効果】以上説明したごとく、本発明は油圧によ
り作業機操作および走行操作を行う作業車両の、オペレ
ータの手元に配設された作業機操作レバーで操作される
パイロット弁と、パイロット圧で操作される作業機操作
弁とを接続する回路上に、パイロット弁と走行操作弁と
を接続する回路に切り換える切換弁を介装したため、切
換弁を切り換えることによりオペレータは作業機操作レ
バーを作業機操作と走行操作とのどちらかに任意に選択
できる。そのため、作業機操作も、走行操作も手元に配
設された作業機操作レバーで操作可能となり、楽な姿勢
で疲労することなく走行操作が行える走行操作装置が得
られる。さらに、本発明に係る走行操作装置の第２は、
オペレータの手元に配設された作業機操作レバーと、作
業機操作レバーのストロークを示す電気信号を演算出力
する手段とを設け、前記演算出力する手段により、作業
機操作弁か走行操作弁かのいずれかを制御する選択手段
を設けたため、オペレータは作業機操作レバーを作業機
操作と走行操作とのどちらかに任意に選択できる。その
ため、作業機操作も、走行操作も手元に配設された作業
機操作レバーで操作可能となり、楽な姿勢で疲労するこ
となく走行操作が行える走行操作装置が得られる。As described above, according to the present invention, the pilot valve operated by the working machine operating lever arranged at the operator's hand and the pilot pressure of the working vehicle for operating the working machine and the traveling operation by hydraulic pressure are used. Since a switching valve for switching to a circuit connecting the pilot valve and the traveling operation valve is provided on the circuit connecting the operating machine operating valve to be operated, the operator switches the operating machine operating lever to the operating machine by switching the switching valve. Either operation or traveling operation can be selected arbitrarily. Therefore, both the working machine operation and the traveling operation can be performed by the working machine operating lever arranged at the hand, and the traveling operation device capable of performing the traveling operation in a comfortable posture without fatigue can be obtained. Furthermore, the second of the traveling operation device according to the present invention is
A working machine operating lever disposed at the operator's hand and means for calculating and outputting an electric signal indicating the stroke of the working machine operating lever are provided, and the means for calculating and outputting determines whether the working machine operating valve or the traveling operating valve. Since the selection means for controlling either one is provided, the operator can arbitrarily select the work implement operating lever for either the work implement operation or the traveling operation. Therefore, both the working machine operation and the traveling operation can be performed by the working machine operating lever arranged at the hand, and the traveling operation device capable of performing the traveling operation in a comfortable posture without fatigue can be obtained.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明の走行操作装置の回路図である。FIG. 1 is a circuit diagram of a traveling operation device of the present invention.
【図２】本発明の走行操作装置を装着した運転席の斜視
図である。FIG. 2 is a perspective view of a driver's seat equipped with the traveling operation device of the present invention.
【図３】作業機操作装置の操作パターンを示す図であ
る。FIG. 3 is a diagram showing an operation pattern of a work machine operation device.
【図４】走行操作装置の操作パターンを示す図である。FIG. 4 is a diagram showing an operation pattern of the traveling operation device.
【図５】本発明の走行操作装置の他の実施例の回路図で
ある。FIG. 5 is a circuit diagram of another embodiment of the traveling operation device of the present invention.
【図６】本発明の演算装置の入力対出力特性図である。FIG. 6 is an input versus output characteristic diagram of the arithmetic unit of the present invention.
【図７】本発明の演算装置の入力対出力特性図である。FIG. 7 is an input versus output characteristic diagram of the arithmetic unit of the present invention.
【図８】従来の運転席の斜視図である。FIG. 8 is a perspective view of a conventional driver's seat.
１…シート、２…右作業機操作レバー、３…左作業機操
作レバー、１０…レバー装置、１１、１２、１３、１４
…パイロット弁、２０…アーム操作弁、２１…旋回操作
弁、３０、３１…電磁切換弁、３６…センタスイベルジ
ョイント、３７…切換スイッチ、４０…右走行操作弁、
４１…左走行操作弁、６０…演算装置。1 ... Seat, 2 ... Right work machine operating lever, 3 ... Left work machine operating lever, 10 ... Lever device, 11, 12, 13, 14
... Pilot valve, 20 ... Arm operation valve, 21 ... Swing operation valve, 30, 31 ... Electromagnetic switching valve, 36 ... Center swivel joint, 37 ... Changeover switch, 40 ... Right traveling operation valve,
41 ... Left traveling operation valve, 60 ... Calculation device.
Claims (2)
行う作業車両において、オペレータの手元に配設された
作業機操作レバーにより操作されるパイロット弁と、前
記パイロット弁からのパイロット圧により操作される作
業機操作弁とを接続するパイロット回路上に、前記パイ
ロット回路を前記パイロット弁と走行操作弁とを接続す
る回路に切り換える切換弁を介装せることを特徴とする
走行操作装置。1. In a work vehicle for hydraulically operating and operating a working machine, a pilot valve operated by a working machine operating lever disposed near an operator, and a pilot pressure from the pilot valve. A travel operating device, wherein a switching valve that switches the pilot circuit to a circuit that connects the pilot valve and the travel operating valve is provided on a pilot circuit that connects to the work implement operating valve.
行う産業車両において、オペレータの手元に配設された
作業機操作レバーと、作業機操作レバーのストロークを
示す電気信号を演算出力する手段とを設け、前記演算出
力する手段が、作業機操作弁か走行操作弁かのいずれか
を制御する選択手段を設けたことを特徴とする走行操作
装置。2. In an industrial vehicle for operating and traveling a working machine by hydraulic pressure, a working machine operating lever arranged at an operator's hand and a means for calculating and outputting an electric signal indicating a stroke of the working machine operating lever. A travel operating device, wherein the means for outputting the calculation includes a selecting means for controlling either the working machine operating valve or the travel operating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29123493A JP3534350B2 (en) | 1993-10-27 | 1993-10-27 | Travel operating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29123493A JP3534350B2 (en) | 1993-10-27 | 1993-10-27 | Travel operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07119710A true JPH07119710A (en) | 1995-05-09 |
| JP3534350B2 JP3534350B2 (en) | 2004-06-07 |
Family
ID=17766218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29123493A Expired - Fee Related JP3534350B2 (en) | 1993-10-27 | 1993-10-27 | Travel operating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3534350B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040094186A (en) * | 2003-05-02 | 2004-11-09 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | construction equipment travel control device and its method |
| EP1580334A1 (en) * | 2004-03-22 | 2005-09-28 | Volvo Construction Equipment Holding Sweden AB | Method of controlling travel of construction heavy equipment with electronic joysticks |
| WO2007063634A1 (en) | 2005-12-02 | 2007-06-07 | Shin Caterpillar Mitsubishi Ltd. | Working machine |
| WO2007069375A1 (en) | 2005-12-12 | 2007-06-21 | Shin Caterpillar Mitsubishi Ltd. | Work machine |
| EP1818460A1 (en) * | 2006-02-14 | 2007-08-15 | Groupe Mecalac | Electro-hydraulic circuit for driving a construction machine |
| WO2008129345A1 (en) * | 2007-04-19 | 2008-10-30 | Volvo Compact Equipment Sas | Controller of a skid steered machine |
-
1993
- 1993-10-27 JP JP29123493A patent/JP3534350B2/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040094186A (en) * | 2003-05-02 | 2004-11-09 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | construction equipment travel control device and its method |
| EP1580334A1 (en) * | 2004-03-22 | 2005-09-28 | Volvo Construction Equipment Holding Sweden AB | Method of controlling travel of construction heavy equipment with electronic joysticks |
| KR100621980B1 (en) * | 2004-03-22 | 2006-09-14 | 볼보 컨스트럭션 이키프먼트 홀딩 스웨덴 에이비 | Travel control method of construction vehicle with electronic joystick |
| US7379806B2 (en) | 2004-03-22 | 2008-05-27 | Volvo Construction Equipment Holding Sweden Ab | Method of controlling travel of construction heavy equipment with electronic joysticks |
| CN100400896C (en) * | 2004-03-22 | 2008-07-09 | 沃尔沃建造设备控股（瑞典）有限公司 | Method of controlling travel of construction heavy equipment with electronic joysticks |
| WO2007063634A1 (en) | 2005-12-02 | 2007-06-07 | Shin Caterpillar Mitsubishi Ltd. | Working machine |
| US7854291B2 (en) | 2005-12-02 | 2010-12-21 | Caterpillar S.A.R.L. | Work machine |
| WO2007069375A1 (en) | 2005-12-12 | 2007-06-21 | Shin Caterpillar Mitsubishi Ltd. | Work machine |
| US8028787B2 (en) | 2005-12-12 | 2011-10-04 | Caterpillar S.A.R.L. | Work machine |
| EP1818460A1 (en) * | 2006-02-14 | 2007-08-15 | Groupe Mecalac | Electro-hydraulic circuit for driving a construction machine |
| WO2008129345A1 (en) * | 2007-04-19 | 2008-10-30 | Volvo Compact Equipment Sas | Controller of a skid steered machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3534350B2 (en) | 2004-06-07 |
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