JPS6131532A - Shovel working vehicle - Google Patents
Shovel working vehicleInfo
- Publication number
- JPS6131532A JPS6131532A JP15490484A JP15490484A JPS6131532A JP S6131532 A JPS6131532 A JP S6131532A JP 15490484 A JP15490484 A JP 15490484A JP 15490484 A JP15490484 A JP 15490484A JP S6131532 A JPS6131532 A JP S6131532A
- Authority
- JP
- Japan
- Prior art keywords
- control
- levers
- electromagnetic proportional
- swing
- operating
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2004—Control mechanisms, e.g. control levers
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、左右一対の操作レバーを、夫々前後及び左右
揺動自在に設け、それら操作レバー夫々の前後揺動及び
左右揺動に各別に連動して、旋回台操作用、ブーム操作
用、アーム操作用、及びバケット操作用の、夫々の油圧
アクチュエータに対する電磁比例弁を操作するように構
成したショベル作業車に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a pair of left and right operating levers that are swingable back and forth and left and right, respectively, and that each of the operating levers is separately controlled for back and forth swinging and left and right swinging. The present invention relates to an excavator vehicle configured to operate electromagnetic proportional valves for respective hydraulic actuators for operating a swivel base, for boom operation, for arm operation, and for bucket operation in conjunction with each other.
さらに詳述すると、パックホウやパワーショベル等のシ
ョベル作業車において、上述の、操作レバーと各油圧ア
クチュエータに対する電磁比例弁との連動関係を、操縦
者が最も使い易い連動関係に適宜変更するだめの技術の
改良に関する。More specifically, in excavator work vehicles such as pack hoes and power shovels, the technology is used to appropriately change the interlocking relationship between the operating lever and the electromagnetic proportional valve for each hydraulic actuator to the interlocking relationship that is easiest for the operator to use. Regarding improvements.
従来、上記ショベル作業車において、操作しパーと電磁
比例弁との連動関係を変更するための構成については、
例えば、第４図に示すようなものがある。即ち、左右一
対の操作レバーＨ９αη各別の前後及び左右揺動に連動
して、横向き軸芯周りでＬ下揺動するレバー側操作アー
ム（２７ａ ）〜（２７ｄ）に、４本の中継回転軸（２
８ａ）〜（２８ｄ）を夫々ロッド（２９ａ）〜（２９ｄ
）によシ連動連結し、各中継回転軸（２８ａ）〜（２８
ｄ）の提手方向適宜位置に、それを上下に貫通するよう
に４個宛合計１６個のネジ孔（ｎ）を形成し、もって、
各アクチュエータに対する電磁比例弁（ＰＶ１）〜（Ｐ
Ｖ４）にロッド（８０ａ ）〜（８０ｄ）によシ連動連
結した弁側操作アーム（８１ａ）〜（８１ｄ）を、それ
らネジ孔（ｎ）の内から適宜選択したネジ孔（ｎ）の上
側或は下側に螺着することによって、各操作レバーＱｆ
９ 、αηと各電磁比例弁（ＰＶ１）〜（ＰＶ４）との
連動関係を適宜変更できるようにしたものである（実開
昭５８−１２０２７２号公報参照）。Conventionally, in the excavator work vehicle mentioned above, the configuration for changing the interlocking relationship between the par and the electromagnetic proportional valve is as follows.
For example, there is one shown in FIG. That is, four relay rotation shafts are attached to the lever side operating arms (27a) to (27d) that swing downward L around the horizontal axis in conjunction with the longitudinal and horizontal swinging of the pair of left and right operating levers H9αη. (2
8a) to (28d) are connected to rods (29a) to (29d), respectively.
), and each relay rotating shaft (28a) to (28
A total of 16 screw holes (n) of 4 screw holes (n) are formed at appropriate positions in the hand direction of d) so as to pass through them vertically, and thereby,
Solenoid proportional valves (PV1) to (P
Valve side operating arms (81a) to (81d) interlockingly connected to V4) by rods (80a) to (80d) are connected to the upper side of the screw hole (n) appropriately selected from among the screw holes (n). By screwing on the lower side, each operating lever Qf
9. The interlocking relationship between αη and each of the electromagnetic proportional valves (PV1) to (PV4) can be changed as appropriate (see Japanese Utility Model Publication No. 120272/1983).
しかし、上記従来構成は、各操作レバーα・。 However, in the above conventional configuration, each operating lever α.
α力と各電磁比例弁（ｐｖｔ）〜（ＰＶ１）〜（ＰＶ４
）とを機械的に連動させるものであシ、連動関係変更の
だめの構造が複雑になるとともに、ロッド（８０ａ）〜
（８０ｄ）及び弁側操作アーム（８１ａ ）〜（８１ｄ
）の付替えによる連動関係変更操作が煩く、改良の余地
があった。α force and each electromagnetic proportional valve (PVT) ~ (PV1) ~ (PV4
), the structure of the mechanism for changing the interlocking relationship becomes complicated, and the rods (80a) to
(80d) and valve side operating arms (81a) to (81d)
) was cumbersome to change interlocking relationships by replacing them, and there was room for improvement.
本発明の目的は、上記実情に鑑み、操作レバーと電磁比
例弁との連動関係を適宜変更するための構成を、構造が
簡単で変更操作を容易に行なえるものにすることにある
。In view of the above circumstances, an object of the present invention is to provide a structure for appropriately changing the interlocking relationship between the operating lever and the electromagnetic proportional valve, which has a simple structure and can be easily changed.
（Ｉｌ、’５Ｍ点を解決するための手段〕本発明による
ショベル作業車の特徴構成は、左右一対の操作レバーに
その前後及び左右揺動に各別に連動するポテンショメー
タを付設し、その４個のポテンショメータからの状報に
基づいて各電磁比例弁を操作する制御器、及び、両操作
レバーと各電磁比例弁との連動関係を選択指示する入力
手段を設け、制御器に、両操作レバーと各電磁比例弁と
の連動関係の複数種類を記憶する手段、並びに、ポテン
ショメータ及び入力手段からの指令に基づいて、各電磁
比例弁のうち記憶手段から指示されるものに操作用電圧
を付与する出力手段を備えたことにあシ、その作用効果
は次のとおりである。(Il, Means for solving the '5M point) The characteristic structure of the excavator work vehicle according to the present invention is that a pair of left and right operation levers is provided with potentiometers that are individually linked to the longitudinal and lateral swinging of the levers. A controller for operating each electromagnetic proportional valve based on the status information from the potentiometer, and an input means for selecting and instructing the interlocking relationship between both operating levers and each electromagnetic proportional valve, are provided in the controller. Means for storing a plurality of types of interlocking relationships with the electromagnetic proportional valve, and output means for applying an operating voltage to one of the electromagnetic proportional valves specified by the storage means based on commands from the potentiometer and the input means. The functions and effects of this system are as follows.
つまシ、操作レバーと電磁比例弁とを電気的に連繋し、
両者の中間に介装した制御器内の記憶手段に予め記憶し
である、操作レバーと電磁ａ４列弁との複数種類の連動
関係の中から、適宜必要な連動関係を入力手段により指
示するだけで、操縦者が最も使い易い連動関係への変更
操作が完了するようにしである。Electrically connects the knob, operating lever, and electromagnetic proportional valve,
All you have to do is to use the input means to instruct the appropriate interlocking relationship from among the multiple types of interlocking relationships between the operating lever and the electromagnetic A4 valve, which are pre-stored in the storage means in the controller interposed between the two. This is done so that the operation for changing the interlocking relationship to the one that is easiest for the operator to use is completed.
その結果、従来に比べて、操作レバーと電磁比例弁との
連動関係変更のための構造を簡単にでき、しかも、機械
的連動構成部材の付替操作をしなくてもよいから、著し
く容易迅速に連動関係変更操作を行なえるようになった
。As a result, the structure for changing the interlocking relationship between the operating lever and the electromagnetic proportional valve can be simplified compared to the conventional method, and there is no need to replace mechanical interlocking components, making it extremely easy and quick. It is now possible to perform operations to change interlock relationships.
さらに、操作レバーの揺動に連動するポテンショメータ
と各電磁比例弁とを電気的に連繋しその連繋回路に連動
関係変更操作のためにロータリースイッチ等を設ける場
合に比して、結線上のトラブルを少なくすることができ
るとともに、種々の外乱による悪影響を抑制することが
でき、全体として、操作レバーと電磁比例弁との連動関
係の変更操作を容易迅速に行なえ、かつ、その操作を、
長期間に亘って安定した状態で行々うことができるよう
になった。Furthermore, compared to the case where a potentiometer that is linked to the swinging of the operating lever and each electromagnetic proportional valve are electrically linked and a rotary switch or the like is provided in the linkage circuit to change the interlocking relationship, troubles related to wiring can be avoided. In addition, it is possible to suppress the adverse effects caused by various disturbances, and as a whole, it is possible to easily and quickly change the interlocking relationship between the operating lever and the electromagnetic proportional valve.
It has become possible to operate in a stable state for a long period of time.
以下に、図面に基づいて、本発明の詳細な説明する。 The present invention will be described in detail below based on the drawings.
第２図に示すように、左右一対のクローラ走行装置（１
）を備えた機台（２）に、搭乗運転部（３）及びエンジ
ン（４）等を設けた旋回台（５）を、油圧モータ（６）
により縦軸芯（Ｐ、）周りで回動自在に取付けである。As shown in Figure 2, a pair of left and right crawler traveling devices (1
) is equipped with a swivel base (5) equipped with a boarding unit (3), an engine (4), etc., and a hydraulic motor (6).
It is mounted so that it can rotate freely around the vertical axis (P,).
そして、夫々油圧シリンダ（７） 、 （８） 、 （
９）によシ横向き軸芯（Ｐ２）、（Ｐ３）、（Ｐ４）周
シで駆動揺動自在なプームＣ１Ｏ、アーム（ロ）、及び
バケット（２）からなる掘削作業装置（Ｓ）を、油圧シ
リンダ（至）により左右揺動自在なスイングブラケット
Ｑ→を介して旋回台（５）に取付け、ドーザ装置■）を
油圧シリンダαｅによシ昇降自在に機台（２）に取付け
、もって、排土作業も可能なパックホウを構成しておる
。Then, the hydraulic cylinders (7), (8), (
9) An excavation work device (S) consisting of a poom C1O, an arm (B), and a bucket (2), which can be driven and oscillated around the horizontal axis (P2), (P3), and (P4), It is attached to the swivel base (5) via the swing bracket Q→ which can be swung left and right by a hydraulic cylinder (to), and the dozer device (■) is attached to the machine base (2) so that it can be raised and lowered by the hydraulic cylinder αe. It is configured as a pack hoe that can also perform soil removal work.
第１図に示すように、運転部（３）に夫々前後及び左右
揺動自在な左右一対の操作レバー（１・、Ｑηを立設し
、それら両操作レバーｅｔ＞ 、 （１７）夫々に、そ
の前後揺動及び左右揺動に各別に連動し、かつ、夫々の
操作レバーＨ、（１７）の揺動操作量に応じた電圧（Ｐ
ＭＶ（１））〜（ＰＭＶ（４））を出力する４個のポテ
ンショメータ（ＰＭ１）〜（ＰＭ４）を付設しである。As shown in FIG. 1, a pair of left and right operation levers (1, Qη) that can swing back and forth and left and right are installed in the driving part (3), and these two operation levers et>, (17), respectively, The voltage (P
Four potentiometers (PM1) to (PM4) that output MV(1) to (PMV(4)) are attached.
そして、それら４個のポテンショメータ（ＰＭ１）〜（
ＰＭ４）と、旋回台駆動用油圧モータ（６）、並びに、
ブームα０．アームαυ、バケット（至）及びスイング
プラケツ） ０４１の駆動用油圧シリンダ（７）〜（９
）、 Ｃ３に対する電磁比例弁（ＰＶ１）〜（ＰＭ４）
とに亘る電気回路に、制御器（ト）を介装し、もって、
制御器（ト）により、各ポテンショメータ（ＰＭ１）〜
（ＰＭ４）からの情報に基いて、各電磁比例弁（ＰＶ１
）〜（ＰＭ４ ）に操作用電圧（ｃｖｔ ）〜（ＣＶ４
）を付与するように構成しておる。 旋回台駆動用油
圧モータ（６）とスイングブラケット駆動用油圧シリン
ダα葎とは、運転部（３）に設けたレバー（ハ）に連動
する切替弁（財）の操作で、１つの電磁比例弁（ＰＶＩ
）によυ各別に作動可能に構成しである。And those four potentiometers (PM1) ~ (
PM4), a hydraulic motor for driving the swivel table (6), and
Boom α0. Arm αυ, bucket (to) and swing bracket) 041 drive hydraulic cylinders (7) to (9)
), solenoid proportional valves (PV1) to (PM4) for C3
A controller (G) is inserted in the electric circuit spanning
Each potentiometer (PM1) ~
Based on the information from (PM4), each electromagnetic proportional valve (PV1)
) to (PM4) to operating voltage (cvt) to (CV4
). The hydraulic motor for driving the swivel table (6) and the hydraulic cylinder for driving the swing bracket are connected to one electromagnetic proportional valve by operating a switching valve linked to a lever (c) provided in the driving part (3). (PVI
), each can be configured to operate separately.
制御器（ト）は、その主要部をマイクロコンピュータか
ら構成してあυ、各ポテンショメータ（ＰＭ１）〜（Ｐ
Ｍ４）からの出力電圧（Ｐ四１））〜（ｐａｖ（４））
をＡＤ変換器Ｏｎを介して、中央処理装置−に入力する
とともに、記憶手段の一例であるメモリーＣ２１１内に
、予め記憶した各ポテンショメータ（ＰＭ１）〜（ＰＭ
４）と各電磁比例弁（ＰＶＩ ）〜（ＰＭ４ ）との複
数種類の連動関係の内から、運転部（３）に設けたボタ
ン又はキーボード等の入力手段（２）により、必要な連
動関係を選択して中央処理装置（ホ）に指示入力するよ
うに構成しである。 つまり、第１図及び第８図のフロ
ーチャートに示すように、入力手段＠によシ符号化され
たあるパターン顛が選択入力されると、メモリー１２１
１内のそのパターン輌の連動関係を記憶した番地（Ａ輪
）にアクセスし、予め記憶した連動関係に基づいて、各
電磁比例弁（Ｐｖｌ）〜（ＰＭ４）に対する操作用電圧
（ＣＶＩ）〜（ＣＶ４ ）として、各ポテンショメータ
（ＰＭ １ ）〜（ＰＭ４ ）の出力電圧ＣＰＭＶ（１
））〜（ＰＭＶ（４））を割当て設定するように構成し
である。 そして出力手段の一例であるＤＡ変換器（２
）を介して、各電磁比例弁（ＰＶ１）〜（ＰＭ４） （
７） ：Ｉ ｙドロー−７（ＣＩ）〜（Ｃ４）に、操作
用電圧（ＣＶＩ ）〜（ＣＶ４ ）を出力するように構
成しである。The main part of the controller (G) is composed of a microcomputer, and each potentiometer (PM1) to (P
Output voltage from M4) (P41)) ~ (pav(4))
is input to the central processing unit through the AD converter On, and each potentiometer (PM1) to (PM
4) and each electromagnetic proportional valve (PVI) to (PM4), select the necessary interlocking relationship using the input means (2) such as a button or keyboard provided on the operating section (3). It is configured to select and input instructions to the central processing unit (e). That is, as shown in the flowcharts of FIGS. 1 and 8, when a certain coded pattern is selectively inputted by the input means @, the memory
Access the address (A wheel) where the interlocking relationship of that pattern vehicle in No. 1 is stored, and calculate the operating voltage (CVI) ~( CV4) is the output voltage CPMV(1) of each potentiometer (PM1) to (PM4).
)) to (PMV(4)) are configured to be allocated and set. And a DA converter (2
), each electromagnetic proportional valve (PV1) to (PM4) (
7): It is configured to output operating voltages (CVI) to (CV4) to Iy draw-7 (CI) to (C4).
る連動関係を表示して操縦者に報知するように構成しで
ある。The system is configured to display and notify the operator of the interlocking relationship.
記憶手段因）に記憶するべき各操作レバー＜ｔ６ 。 Each operation lever <t6 to be stored in the storage means).
αηと各電磁比例弁（ＰＶ１）〜（ＰＭ４）との連動関
係は、一般的に８種類か４種類あれば足シるが、ユーザ
ーサイドでの必要に応じてそれ以上の種類を記憶させて
もよく、少なくとも２種類以上であれば、その数は不問
である。−！、た、その連動関係として、単に操作レバ
ーａ６．αのに対する各電磁比例弁（Ｐｖｌ）〜（ＰＭ
４）の割当てだけでなく、操作レバーα４．Ｃ７１の揺
動方向に対する被操作系の作動の正逆方向及び、操作用
電圧（ｃｖｉ）〜（ＣＶ４ ”）の増幅率等も含めて記
憶させておき、コントローラ（Ｃ１）〜（Ｃ４）を省略
するように構成する等、種々の変更が可能である。The interlocking relationship between αη and each electromagnetic proportional valve (PV1) to (PM4) is generally sufficient if there are 8 or 4 types, but more types can be memorized depending on the user's needs. The number is not critical as long as there are at least two types. -! , and the interlocking relationship is simply the operation lever a6. Each electromagnetic proportional valve (Pvl) to (PM
4) as well as the assignment of operation lever α4. The forward and reverse directions of operation of the operated system with respect to the swing direction of C71 and the amplification factors of the operating voltages (cvi) to (CV4'') are also stored, and controllers (C1) to (C4) are omitted. Various changes can be made, such as configuring it to do so.
本発明は、パックホウの他、種々の形式のショベル作業
車に適用することができる。The present invention can be applied to various types of excavator vehicles in addition to pack hoes.
第１図乃至第８図は本発明に係るショベル作業車の実施
例を示し、第１図は操作レバーと電磁比例弁との連動関
係選択のための構成の概略図、第２図はパックホウの全
体側面図、第８図は連動関係選択のためのフローチャー
トである。
第４図は従来例を示す第１図に相当する概略図である。
α＊、ｃ’ｉ・・・・・・操作レバー、（ト）・・・・
・・制御器、ρＢ・・・・・・記憶手段、（２）・・・
・・・入力手段、霞・・・・・・出力手段、（ＰＭＩ
）〜（ＰＭ４ ） −−−−・・ポテンショメータ、（
ＰＶＩ）〜（ＰＶ４）・・・・・・電磁比例弁、（ＣＶ
Ｉ）〜（ＣＶ４）・川・・操作用電圧。
代理人 弁理士 北 村 修
第 ４ 図1 to 8 show an embodiment of the excavator work vehicle according to the present invention, FIG. 1 is a schematic diagram of the configuration for selecting the interlocking relationship between the operating lever and the electromagnetic proportional valve, and FIG. 2 is a diagram of the structure of the pack hoe. The overall side view, FIG. 8, is a flowchart for selecting interlocking relationships. FIG. 4 is a schematic diagram corresponding to FIG. 1 showing a conventional example. α*, c'i... operation lever, (g)...
...Controller, ρB...Storage means, (2)...
... Input means, Kasumi ... Output means, (PMI
) ~ (PM4) -----... Potentiometer, (
PVI) ~ (PV4)... Solenoid proportional valve, (CV
I) ~ (CV4)・River...Operating voltage. Agent Patent Attorney Shudai Kitamura Figure 4
Claims (1)
及び左右揺動自在に設け、それら操作レバー（１６）、
（１７）夫々に、その前後揺動及び左右揺動に各別に連
動するポテンショメータ（ＰＭ１）〜（ＰＭ４）を付設
し、旋回台操作用、ブーム操作用、アーム操作用及びバ
ケット操作用電磁比例弁（ＰＶ１）〜（ＰＶ４）を前記
４個のポテンショメータ（ＰＭ１）〜（ＰＭ４）からの
情報に基いて操作する制御器（１８）を設けたショベル
作業車であつて、前記操作レバー（１６）、（１７）と
電磁比例弁（ＰＶ１）〜（ＰＶ４）の連動関係を選択指
示する入力手段（２２）を設け、前記制御器（１８）に
、前記操作レバー（１６）、（１７）と電磁比例弁（Ｐ
Ｖ１）〜（ＰＶ４）の連動関係の複数種類を記憶する手
段（２１）並びに、前記ポテンショメータ（ＰＭ１）〜
（ＰＭ４）及び入力手段（２２）からの指令に基いて、
前記電磁比例弁（ＰＶ１）〜（ＰＶ４）のうち前記記憶
手段（２１）から指示されるものに操作用電圧（ＣＶ１
）〜（ＣＶ４）を付与する出力手段（２５）を備えてあ
るショベル作業車。A pair of left and right operation levers (16) and (17) are provided so as to be able to swing back and forth and left and right, respectively, and these operation levers (16),
(17) Equipped with potentiometers (PM1) to (PM4) that are individually linked to the forward and backward rocking and left and right rocking, respectively, and electromagnetic proportional valves for swivel platform operation, boom operation, arm operation, and bucket operation. The excavator vehicle is equipped with a controller (18) for operating (PV1) to (PV4) based on information from the four potentiometers (PM1) to (PM4), the operating lever (16); (17) and an input means (22) for selecting and instructing the interlocking relationship between the electromagnetic proportional valves (PV1) to (PV4), Valve (P
Means (21) for storing multiple types of interlocking relationships of V1) to (PV4) and the potentiometers (PM1) to
(PM4) and the command from the input means (22),
Among the electromagnetic proportional valves (PV1) to (PV4), the operating voltage (CV1) is applied to the proportional valves (PV1) to (PV4) specified by the storage means (21).
) to (CV4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15490484A JPS6131532A (en) | 1984-07-24 | 1984-07-24 | Shovel working vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15490484A JPS6131532A (en) | 1984-07-24 | 1984-07-24 | Shovel working vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6131532A true JPS6131532A (en) | 1986-02-14 |
| JPH0361811B2 JPH0361811B2 (en) | 1991-09-24 |
Family
ID=15594498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15490484A Granted JPS6131532A (en) | 1984-07-24 | 1984-07-24 | Shovel working vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6131532A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62291338A (en) * | 1986-06-11 | 1987-12-18 | Seirei Ind Co Ltd | Operator for excavating working part of back-hoe |
| JPS63130805A (en) * | 1986-11-21 | 1988-06-03 | 防衛庁技術研究本部長 | Control apparatus of moving type bridge temporary construction apparatus |
| JPS63130804A (en) * | 1986-11-21 | 1988-06-03 | 防衛庁技術研究本部長 | Control device of moving type bridge temporary construction apparatus |
| JPS63116565U (en) * | 1987-01-21 | 1988-07-27 | ||
| JPS63312431A (en) * | 1987-06-13 | 1988-12-20 | Hitachi Constr Mach Co Ltd | Selector for combination of operating lever and actuator |
| JPS63312430A (en) * | 1987-06-13 | 1988-12-20 | Hitachi Constr Mach Co Ltd | Combination changer for operating lever and actuator |
| JPS6431153U (en) * | 1987-08-19 | 1989-02-27 | ||
| JPH0270224U (en) * | 1988-11-18 | 1990-05-29 | ||
| JPH0289043U (en) * | 1988-12-23 | 1990-07-13 | ||
| WO1991000397A1 (en) * | 1989-06-30 | 1991-01-10 | Kabushiki Kaisha Komatsu Seisakusho | Device for displaying operation pattern of hydraulic excavator |
| US5810046A (en) * | 1996-04-30 | 1998-09-22 | Samsung Heavy Industries Co., Ltd. | Device and method for selecting control mode in power construction vehicle |
| WO2005088018A1 (en) * | 2004-03-12 | 2005-09-22 | Hitachi Construction Machinery Co., Ltd | System for setting and managing work execution area |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059745A (en) * | 1973-09-27 | 1975-05-23 | ||
| JPS54121722A (en) * | 1978-03-14 | 1979-09-21 | Casio Comput Co Ltd | Musical tone assignment system in electronic musical instruments |
| JPS5552436A (en) * | 1978-10-06 | 1980-04-16 | Kubota Ltd | Back hoe working vehicle |
| US4266749A (en) * | 1978-04-11 | 1981-05-12 | Atlas Copco Aktiebolag | Drill boom arrangement |
| JPS5680510A (en) * | 1979-12-07 | 1981-07-01 | Komatsu Ltd | Electric oil hydraulic control device for construction vehicle |
| JPS56141402A (en) * | 1980-04-03 | 1981-11-05 | Hitachi Constr Mach Co Ltd | Control method for hydraulic system |
| JPS5727503U (en) * | 1980-07-23 | 1982-02-13 | ||
| JPS57197334A (en) * | 1981-05-26 | 1982-12-03 | Komatsu Ltd | Electric oil pressure controller for construction vehicle |
| JPS58120272U (en) * | 1982-02-09 | 1983-08-16 | 株式会社クボタ | Valve operation structure of excavator work vehicle |
| JPS5976669U (en) * | 1982-11-16 | 1984-05-24 | 株式会社小松製作所 | Work equipment operating device for hydraulically driven vehicles |
| JPS60168904A (en) * | 1984-02-09 | 1985-09-02 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of pilot control system |
| JPS60135362U (en) * | 1984-02-20 | 1985-09-09 | 株式会社小松製作所 | Hydraulic working equipment operating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52150099A (en) * | 1976-07-09 | 1977-12-13 | Shimada Rika Kogyo Kk | Sheet hopper |
-
1984
- 1984-07-24 JP JP15490484A patent/JPS6131532A/en active Granted
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5059745A (en) * | 1973-09-27 | 1975-05-23 | ||
| JPS54121722A (en) * | 1978-03-14 | 1979-09-21 | Casio Comput Co Ltd | Musical tone assignment system in electronic musical instruments |
| US4266749A (en) * | 1978-04-11 | 1981-05-12 | Atlas Copco Aktiebolag | Drill boom arrangement |
| JPS5552436A (en) * | 1978-10-06 | 1980-04-16 | Kubota Ltd | Back hoe working vehicle |
| JPS5680510A (en) * | 1979-12-07 | 1981-07-01 | Komatsu Ltd | Electric oil hydraulic control device for construction vehicle |
| JPS56141402A (en) * | 1980-04-03 | 1981-11-05 | Hitachi Constr Mach Co Ltd | Control method for hydraulic system |
| JPS5727503U (en) * | 1980-07-23 | 1982-02-13 | ||
| JPS57197334A (en) * | 1981-05-26 | 1982-12-03 | Komatsu Ltd | Electric oil pressure controller for construction vehicle |
| JPS58120272U (en) * | 1982-02-09 | 1983-08-16 | 株式会社クボタ | Valve operation structure of excavator work vehicle |
| JPS5976669U (en) * | 1982-11-16 | 1984-05-24 | 株式会社小松製作所 | Work equipment operating device for hydraulically driven vehicles |
| JPS60168904A (en) * | 1984-02-09 | 1985-09-02 | Hitachi Constr Mach Co Ltd | Hydraulic circuit of pilot control system |
| JPS60135362U (en) * | 1984-02-20 | 1985-09-09 | 株式会社小松製作所 | Hydraulic working equipment operating device |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62291338A (en) * | 1986-06-11 | 1987-12-18 | Seirei Ind Co Ltd | Operator for excavating working part of back-hoe |
| JPS63130805A (en) * | 1986-11-21 | 1988-06-03 | 防衛庁技術研究本部長 | Control apparatus of moving type bridge temporary construction apparatus |
| JPS63130804A (en) * | 1986-11-21 | 1988-06-03 | 防衛庁技術研究本部長 | Control device of moving type bridge temporary construction apparatus |
| JPS63116565U (en) * | 1987-01-21 | 1988-07-27 | ||
| JPH0745746B2 (en) * | 1987-06-13 | 1995-05-17 | 日立建機株式会社 | Device for changing the combination of operating lever and actuator |
| JPS63312431A (en) * | 1987-06-13 | 1988-12-20 | Hitachi Constr Mach Co Ltd | Selector for combination of operating lever and actuator |
| JPS63312430A (en) * | 1987-06-13 | 1988-12-20 | Hitachi Constr Mach Co Ltd | Combination changer for operating lever and actuator |
| JPS6431153U (en) * | 1987-08-19 | 1989-02-27 | ||
| JPH0270224U (en) * | 1988-11-18 | 1990-05-29 | ||
| JPH0289043U (en) * | 1988-12-23 | 1990-07-13 | ||
| WO1991000397A1 (en) * | 1989-06-30 | 1991-01-10 | Kabushiki Kaisha Komatsu Seisakusho | Device for displaying operation pattern of hydraulic excavator |
| JPH0336334A (en) * | 1989-06-30 | 1991-02-18 | Komatsu Ltd | Operation pattern conversion monitor device for hydraulically-operated excavator |
| US5810046A (en) * | 1996-04-30 | 1998-09-22 | Samsung Heavy Industries Co., Ltd. | Device and method for selecting control mode in power construction vehicle |
| WO2005088018A1 (en) * | 2004-03-12 | 2005-09-22 | Hitachi Construction Machinery Co., Ltd | System for setting and managing work execution area |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0361811B2 (en) | 1991-09-24 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |