JPH0771401B2 - Operating device for control unit of riding agricultural machine - Google Patents
Operating device for control unit of riding agricultural machineInfo
- Publication number
- JPH0771401B2 JPH0771401B2 JP4307032A JP30703292A JPH0771401B2 JP H0771401 B2 JPH0771401 B2 JP H0771401B2 JP 4307032 A JP4307032 A JP 4307032A JP 30703292 A JP30703292 A JP 30703292A JP H0771401 B2 JPH0771401 B2 JP H0771401B2
- Authority
- JP
- Japan
- Prior art keywords
- control
- switch group
- agricultural machine
- hydraulic
- riding agricultural
- 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.)
- Expired - Lifetime
Links
- 230000003028 elevating effect Effects 0.000 claims description 6
- 230000001174 ascending effect Effects 0.000 description 5
- 238000005096 rolling process Methods 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Control Of Position, Course, Altitude, Or Attitude Of Moving Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、例えばトラクタの如
き乗用農機の制御部の操作装置に関するもので、操作性
を向上させることを目的とする。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating device for a control section of a riding agricultural machine such as a tractor, and an object thereof is to improve operability.
【０００２】[0002]
【従来技術】近年、トラクタ等の乗用農機では、マイク
ロコンピュ−タを搭載し、このマイクロコンピュ−タか
らの指令によって油圧昇降制御弁をコントロ−ルしてリ
フトア−ムを回動させたり、左右姿勢制御用の制御弁を
コントロ−ルしてリフトア−ムとロワ−リンクとの間に
介装された姿勢制御用のロ−リングシリンダを伸縮制御
させるものが知られている。2. Description of the Related Art In recent years, a riding agricultural machine such as a tractor is equipped with a micro computer, and a hydraulic raising / lowering control valve is controlled by a command from the micro computer to rotate the lift arm, It is known to control a posture control valve to extend and contract a posture control rolling cylinder interposed between a lift arm and a lower link.
【０００３】前記油圧制御弁は油圧操作レバ−にて操作
され、この油圧操作レバ−を前後方向に回動させること
によってリフトア−ムが上下方向に回動するように構成
されている。又、この油圧操作レバ−とは別に、操作ボ
ックス部にリフトア−ムの昇降位置を設定したり、作業
機のロ−リング角度を設定する各種設定ダイヤルやスイ
ッチ類が設けられている。The hydraulic control valve is operated by a hydraulic operation lever, and by rotating the hydraulic operation lever in the front-back direction, the lift arm is configured to rotate in the vertical direction. In addition to the hydraulic operation lever, various setting dials and switches for setting the lifting position of the lift arm and the rolling angle of the working machine are provided in the operation box portion.
【０００４】[0004]
【発明が解決しようとする課題】ところで、各種設定ダ
イヤルやスイッチ類が多くなると、操作ボックス部のケ
−ス盤面に数多くのダイヤルやスイッチ類が並ぶことに
なって、実際の作業時や、枕地での機体回向時等にスイ
ッチ類を見間違い、操作に戸惑ったり、誤操作につなが
る危険性がある。また、各種設定器やスイッチ類の中に
は、感度設定器のように使用頻度の低いものがあり、こ
れらが使用頻度の高いスイッチ類と共にいつも露出して
いると、迅速且つ的確な制御操作ができない欠点があ
る。By the way, when various setting dials and switches are increased, many dials and switches are lined up on the case board surface of the operation box section, which may cause a problem in actual work or in pillows. There is a risk that the switches will be misidentified when turning the aircraft on the ground, leading to confusion or misoperation. Also, among the various setting devices and switches, there are some that are used less frequently like the sensitivity setting device, and if these are exposed with the frequently used switches, quick and accurate control operation is possible. There is a drawback that cannot be done.
【０００５】[0005]
【課題を解決するための手段】この発明は前記の課題に
鑑みて提案するものであり、操作性に優れ、誤操作の恐
れがない油圧昇降用制御部の操作装置を提供せんとする
ものである。このため、次のような技術的手段を講じ
た。即ち、油圧昇降機構の昇降位置を設定指示する油圧
操作レバ−１６の回動基部にポテンショメ−タ１８を配
設し、このポテンショメ−タ１８の設定値に応じてリフ
トア−ム９の昇降位置が制御されるように構成された乗
用農機において、油圧操作レバ−１６の後方に、昇降制
御用あるいは姿勢制御用の第１調整スイッチ群Ｘと第２
調整スイッチ群Ｙとを設け、第１調整スイッチ群Ｘは、
その操作部をケ−ス外に露出状に設け、一方、第２調整
用スイッチ類Ｙは開閉自在な蓋３２、３４で覆い、且つ
この蓋３２、３４は第１調整スイッチ群Ｘから離れた側
のヒンジ３１、３３を中心に回動可能に構成されている
ことを特徴とする乗用農機の制御部操作装置の構成とす
る。SUMMARY OF THE INVENTION The present invention is proposed in view of the above-mentioned problems, and an object thereof is to provide an operating device for a hydraulic lifting / lowering control unit which is excellent in operability and free from the risk of erroneous operation. . Therefore, the following technical measures were taken. That is, the potentiometer 18 is arranged at the rotating base of the hydraulic operation lever 16 for instructing the setting of the ascending / descending position of the hydraulic elevating mechanism, and the lift arm 9 is ascended / descended according to the set value of the potentiometer 18. In a riding agricultural machine configured to be controlled in position, a first adjusting switch group X and a second adjusting switch group X for lifting control or posture control are provided behind the hydraulic operation lever 16.
The adjustment switch group Y is provided, and the first adjustment switch group X is
The operating portion is provided outside the case, while the second adjusting switches Y are covered with openable and closable lids 32 and 34, and the lids 32 and 34 are separated from the first adjusting switch group X. The control unit operating device for a riding agricultural machine is configured to be rotatable around the side hinges 31 and 33.
【０００６】[0006]
【実施例】以下、図面に示す実施例に基づいて、この発
明の実施例を説明する。図１に乗用農機１の一例として
のトラクタの要部斜視を、図２に図１のＡ−Ａ線断面視
を、図３に図１のＢ矢視を夫々示したように、対地作業
機２を左右のロワ−リンク３、４と中央のトップリンク
５とからなる作業機連結リンク機構６にて連結できるよ
うに設けてあり、油圧昇降機構７のリフトシリンダ８の
リフトピストンの出入動作によって昇降回動する左右の
リフトア−ム９、９を、左右のリフトロッド１０、１１
を介してロワ−リンク３、４に連結し、図示を省略して
いる昇降制御弁が操作されると、リフトシリンダ８への
圧力油の給排制御が行われてリフトアーム９，９と共に
対地作業機２が昇降動作をすることになり、一方のリフ
トロッド１０がリフトロッドシリンダにて形成されてい
て姿勢制御機構１２となっているので、図示を省略して
いる姿勢制御弁が操作されると、リフトロッドシリンダ
への圧力油の給排制御が行われて対地作業機２は、非伸
縮側のリフトロッド１１と同側のロワーリンク４の後部
付近を中心としてローリングするように構成されてい
る。Embodiments of the present invention will be described below based on the embodiments shown in the drawings. 1 is a perspective view of a main part of a tractor as an example of the riding agricultural machine 1, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a view taken along the arrow B of FIG. 2 is provided so that it can be connected by a working machine connection link mechanism 6 composed of left and right lower links 3 and 4 and a central top link 5, and the lift piston of a lift cylinder 8 of a hydraulic lifting mechanism 7 moves in and out. The left and right lift arms 9 and 9 that rotate up and down are replaced by the left and right lift rods 10 and 11.
When a raising / lowering control valve (not shown) is connected to the lower links 3 and 4 via a valve, pressure oil is supplied to and discharged from the lift cylinder 8, and the lift arms 9 and 9 are grounded together. Since the working machine 2 moves up and down, and one lift rod 10 is formed of a lift rod cylinder and serves as the posture control mechanism 12, a posture control valve (not shown) is operated. With the control of supply and discharge of pressure oil to the lift rod cylinder, the ground work machine 2 is configured to roll around the rear portion of the lower link 4 on the same side as the lift rod 11 on the non-extend side. There is.
【０００７】乗用農機１の例えば右側のフェンダ１３の
内側に配置されて薄板で箱状に形成したレバーガイド１
４を機体に取付け、レバ−ガイド１４の上面部に、例え
ば合成樹脂で作られているケース１５を取付けて、昇降
位置を設定指示するための油圧操作レバー１６の回動基
部をケース１５内にて軸受１７に軸支し、この回動基部
を、ポテンショメータ１８の検出軸１９に取付けて、油
圧操作レバー１６の回動角に応じて昇降制御弁が昇降制
御回路部２２の指令によって動作して、リフトアーム９
の昇降位置が制御されるように構成してあり、レバーガ
イド４に設けた後部開口部２０に蓋２１を取付け、この
蓋２１の下面に上記の昇降制御回路部２２を取付けてい
る。For example, the lever guide 1 is arranged inside the fender 13 on the right side of the riding agricultural machine 1 and is formed in a box shape with a thin plate.
4 is attached to the machine body, a case 15 made of, for example, a synthetic resin is attached to the upper surface of the lever guide 14, and a rotation base of a hydraulic operation lever 16 for instructing the setting of the ascending / descending position is provided in the case 15. Is pivotally supported on the bearing 17, and this rotation base is attached to the detection shaft 19 of the potentiometer 18, and the lift control valve operates according to the command of the lift control circuit unit 22 in accordance with the rotation angle of the hydraulic operation lever 16. , Lift arm 9
The lid 21 is attached to the rear opening 20 provided in the lever guide 4, and the above-described elevation control circuit 22 is attached to the lower surface of the lid 21.
【０００８】ケース１５の後部（図２の左部）は、この
ケース１５に仕切壁２３を設けて前部室２４には油圧操
作レバー１６の回動基部、ポテンショメータ１８などが
収納されるようにし、後部室２５には、比較的頻繁に使
用する第１調整スイッチ群Ｘとして昇降制御関係スイッ
チＳＷ1，ＳＷ2，…を収納して、昇降制御関係スイッチ
ＳＷ1，ＳＷ2，…の夫々のつまみ部Ｗ1，Ｗ2をケース１
５の天井板から上方へ突設し、コード２６を介して昇降
制御関係スイッチＳＷ1，ＳＷ2，…を、昇降制御回路部
２２に接続している。At the rear part of the case 15 (the left part in FIG. 2), a partition wall 23 is provided on the case 15 so that the rotation chamber of the hydraulic operating lever 16 and the potentiometer 18 can be housed in the front chamber 24. In the rear chamber 25, ascending / descending control related switches SW 1 , SW 2 , ... Are accommodated as a first adjusting switch group X that is used relatively frequently, and the knobs of the ascending / descending control related switches SW 1 , SW 2 ,. Parts W 1 and W 2 are case 1
5 is provided so as to project upward from the ceiling plate, and the raising / lowering control related switches SW 1 , SW 2 , ... Are connected to the raising / lowering control circuit unit 22 via a cord 26.
【０００９】又、合成樹脂で作ったコントロールボック
ス２７を、その前縁部２７ａがケース１５の後縁部１５
ａに重ねてレバーガイド１４の上面部へ取外し自在に取
付け、第１調整スイッチ群Ｘを形成する姿勢制御関係ス
イッチＳＨ1，ＳＨ2，…をコントロールボックス２７に
収納して、これらの姿勢制御関係スイッチＳＨ1，Ｓ
Ｈ2，…の夫々のつまみ部Ｈ1，Ｈ2，…をコントロール
ボックス２７の天井板から上方へと突設し、姿勢制御回
路部２８を、レバーガイド１４内にて底板２９に取付
け、姿勢制御回路部２８に姿勢制御関係スイッチＳ
Ｈ1，ＳＨ2，…を、コード３０を介して取付け、姿勢制
御に用いるための左右傾斜センサＳ1を、姿勢制御回路
部２８に接近させて底板２９に取付けている。Further, the control box 27 made of synthetic resin has a front edge 27a whose rear edge 15 is the case 15.
The attitude control-related switches SH 1 , SH 2 , ... Forming the first adjustment switch group X are housed in the control box 27 so as to be removably attached to the upper surface of the lever guide 14 in a. Switches SH 1 , S
H 2, ... knob H 1 each, H 2, ... a projecting from the ceiling plate of the control box 27 upward of the attitude control circuit unit 28, mounted on the bottom plate 29 at the lever guide 14, the attitude Attitude control related switch S is provided in the control circuit unit 28.
, H 1 , SH 2 , ... Are attached via a cord 30, and a horizontal inclination sensor S 1 used for attitude control is attached to a bottom plate 29 close to the attitude control circuit unit 28.
【００１０】一方、ケース１５の内側（フェンダ１３か
ら遠い側）には、使用頻度の低い第２調整スイッチ群Ｙ
としての昇降制御感度調整スイッチＳａ，Ｓｂ，…を前
部室２５内に収納して、夫々のつまみ部ａ，ｂを、天井
板から上方へ突設し、ヒンジ３１，３１にて蝶着した蓋
３２が、つまみ部ａ，ｂ，…を覆うように設け、同じく
第２調整スイッチ群Ｙとしての姿勢制御感度調整スイッ
チＳｍ，Ｓｎ，…をコントロールボックス２７内に収納
して、夫々のつまみｍ，ｎ，…をコントロールボックス
２７の天井板から上方へて突設し、ヒンジ３３，３３に
て蝶着した蓋３４がつまみ部ｍ，ｎ，…を覆うように設
けている。ヒンジ３３、３３は第１調整スイッチ群Ｘか
ら離れた側にあり、これを中心として蓋３２、３４を開
けると、関連する全てのスイッチ類が露出するように構
成している。On the other hand, inside the case 15 (on the side far from the fender 13), the second adjustment switch group Y which is rarely used is used.
, The lift control sensitivity adjustment switches Sa, Sb, ... Are housed in the front chamber 25, the respective knob portions a, b are projected upward from the ceiling plate, and the lids are hinged by the hinges 31, 31. 32 are provided so as to cover the knob portions a, b, ..., Similarly, the attitude control sensitivity adjustment switches Sm, Sn, ... As the second adjustment switch group Y are housed in the control box 27, and the respective knobs m, , are projected upward from the ceiling plate of the control box 27, and lids 34 hinged by hinges 33, 33 are provided so as to cover the knobs m, n ,. The hinges 33, 33 are located on the side away from the first adjustment switch group X, and when the lids 32, 34 are opened with this hinge as the center, all the related switches are exposed.
【００１１】そして、左右傾斜センサＳ1と姿勢制御回
路部２８を、同一の底板２９に設けて互に接近させてい
るので、配線が短くなってコストも安くなるものであ
る。レバーガイド１４の前部には、乗用農機１に装着さ
れるローダ等の油圧操作レバー３５，３５，…を設けて
いる。符号３６はモニタランプであり、符号３７は昇降
スイッチである。この昇降スイッチ３７を操作すると対
地作業機２は上昇し、あるいは下降する。Since the left and right inclination sensor S 1 and the attitude control circuit section 28 are provided close to each other on the same bottom plate 29, the wiring is short and the cost is low. At the front part of the lever guide 14, hydraulic operating levers 35, 35, ... Of a loader or the like mounted on the riding agricultural machine 1 are provided. Reference numeral 36 is a monitor lamp, and reference numeral 37 is an elevating switch. When the elevating switch 37 is operated, the ground work implement 2 moves up or down.
【００１２】対地作業機２のローリング制御は、左右傾
斜センサＳ1によって算出された乗用農機１の対地左右
傾斜角に、リフトロッドセンサＳ2にて検出したリフト
ロッド１０の長さにもとづいて姿勢制御回路部２８にて
算出した対地作業機２の対乗用農機左右傾斜角を加えて
対地作業機２の対地左右傾斜角を左右傾斜検出値として
算出し、ボリュームの如きものにて構成している左右傾
斜設定器にて指定した左右傾斜設定値に、上記算出され
た左右傾斜検出値が一致するように、姿勢制御回路部２
８が姿勢制御弁を動作させてリフトロッド１０を伸縮制
御することによって行われるものである。The rolling control of the ground work implement 2 is based on the horizontal tilt angle to the ground of the riding agricultural machine 1 calculated by the left and right tilt sensor S 1 and the posture based on the length of the lift rod 10 detected by the lift rod sensor S 2 . The horizontal inclination angle of the ground work machine 2 is calculated as a horizontal inclination detection value by adding the left and right inclination angles of the ground work machine 2 calculated by the control circuit unit 28, and is configured by a volume. The attitude control circuit unit 2 is configured so that the calculated left / right tilt detection value matches the left / right tilt set value designated by the left / right tilt setter.
8 is performed by operating the attitude control valve to control the extension and contraction of the lift rod 10.
【００１３】この実施例における油圧制御部の操作装置
は、上述のように構成しているので、作業開始前には蓋
３２、３４を開けて昇降制御用、あるいは姿勢制御用の
スイッチ類、例えば普段あまり使用しない感度調整スイ
ッチを操作してきめ細かな調整を行い、調整終了後は蓋
３２、３４をしておく。そして、作業中や枕地での回向
時には油圧操作レバ−１６を用いるか、あるいは蓋３
２、３４で覆われていない第１調整スイッチ群Ｘの中の
該当するスイッチを選択して使用し、リフトア−ム９を
昇降させたり、ロ−リング角度の調節を行う。Since the operating device of the hydraulic control unit in this embodiment is constructed as described above, the lids 32 and 34 are opened before starting the work, and the switches for raising and lowering control or the posture control, for example, The sensitivity adjustment switch, which is not often used, is operated to make fine adjustments, and the lids 32 and 34 are kept after the adjustment is completed. Then, when working or turning in the headland, use the hydraulic operation lever 16 or use the lid 3
A corresponding switch in the first adjustment switch group X which is not covered with 2, 34 is selected and used to raise and lower the lift arm 9 or adjust the rolling angle.
【００１４】[0014]
【発明の効果】この発明は前記の如く、油圧昇降機構の
昇降位置を設定指示する油圧操作レバ−の回動基部にポ
テンショメ−タを配設し、このポテンショメ−タの設定
値に応じてリフトア−ムの昇降位置が制御されるように
構成された乗用農機において、油圧操作レバ−の後方
に、昇降制御用あるいは姿勢制御用の第１調整スイッチ
群と第２調整スイッチ群とを設け、第１調整スイッチ群
は、その操作部をケ−ス外に露出状に設け、一方、第２
調整用スイッチ群は開閉自在な蓋で覆い、且つこの蓋は
第１調整スイッチ群から離れた側のヒンジを中心に回動
可能に構成されているものであるから、ケ−ス外に露出
しているスイッチ類のつまみの数が減少することにな
り、目的のスイッチを見誤る恐れがなくなるから不慣れ
な者でも迅速且つ的確に操作でき操作性が著しく向上す
る。また、蓋のヒンジは、露出している第１調整スイッ
チ群から離れた側に設けられているので、この蓋を開け
たときには、全てのスイッチが見える状態になり、作業
開始前の初期設定が容易になる。As described above, according to the present invention, a potentiometer is provided on the rotating base of the hydraulic operation lever for instructing the setting of the ascending / descending position of the hydraulic elevating mechanism, and the potentiometer is set according to the set value of the potentiometer. In a riding agricultural machine configured to control the lifting position of a lift arm, a first adjusting switch group and a second adjusting switch group for lifting control or attitude control are provided behind a hydraulic operation lever. , The first adjustment switch group has its operation portion exposed outside the case, while the second adjustment switch group
The adjustment switch group is covered with a lid that can be opened and closed, and since this lid is configured to be rotatable around a hinge on the side away from the first adjustment switch group, it is exposed to the outside of the case. Since the number of knobs of the switches that are used is reduced and there is no risk of mistaking the target switch, even an inexperienced person can quickly and accurately operate and the operability is significantly improved. Further, since the hinge of the lid is provided on the side away from the exposed first adjustment switch group, when the lid is opened, all the switches are visible, and the initial settings before the start of work are set. It will be easier.
【図１】乗用農機の要部斜視図である。FIG. 1 is a perspective view of a main part of a riding agricultural machine.
【図２】図１のＡ−Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA of FIG.
【図３】図１のＢ矢視図である。FIG. 3 is a view on arrow B of FIG.
【図４】図２のＣ−Ｃ線断面図である。4 is a cross-sectional view taken along the line CC of FIG.
【図５】図２のＤ−Ｄ線断面図である。5 is a cross-sectional view taken along the line DD of FIG.
【図６】図２のＥ−Ｅ線断面図である。6 is a cross-sectional view taken along the line EE of FIG.
１ 乗用農機 ２ 対地作業機 ３、４ ロワ−リンク ５ トップリンク ６ 作業機連結リンク機構 ７ 油圧昇降機構 １２ 姿勢制御機構 １６ 油圧操作レバ− １８ ポテンショメ−タ ２７ コントロ−ルボックス 1 riding agricultural machine 2 ground working machine 3, 4 lower link 5 top link 6 working machine connecting link mechanism 7 hydraulic lifting mechanism 12 attitude control mechanism 16 hydraulic operating lever 18 potentiometer 27 control box
Claims (1)
圧操作レバ−の回動基部にポテンショメ−タを配設し、
このポテンショメ−タの設定値に応じてリフトア−ムの
昇降位置が制御されるように構成された乗用農機におい
て、油圧操作レバ−の後方に、昇降制御用あるいは姿勢
制御用の第１調整スイッチ群と第２調整スイッチ群とを
設け、第１調整スイッチ群は、その操作部をケ−ス外に
露出状に設け、一方、第２調整用スイッチ群は開閉自在
な蓋で覆い、且つこの蓋は第１調整スイッチ群から離れ
た側のヒンジを中心に回動可能に構成されていることを
特徴とする乗用農機の制御部操作装置。1. A potentiometer is provided on a rotating base of a hydraulic operation lever for instructing a setting of an elevating position of a hydraulic elevating mechanism.
In a riding agricultural machine configured to control the lifting position of a lift arm according to the set value of the potentiometer, a first adjustment switch for lifting control or attitude control is provided behind a hydraulic operation lever. Group and a second adjusting switch group are provided, and the operating portion of the first adjusting switch group is exposed outside the case, while the second adjusting switch group is covered with a lid that can be opened and closed. The control device operating device for a riding agricultural machine, wherein the lid is configured to be rotatable around a hinge on the side away from the first adjustment switch group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4307032A JPH0771401B2 (en) | 1992-11-17 | 1992-11-17 | Operating device for control unit of riding agricultural machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4307032A JPH0771401B2 (en) | 1992-11-17 | 1992-11-17 | Operating device for control unit of riding agricultural machine |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60260662A Division JP2550312B2 (en) | 1985-11-20 | 1985-11-20 | Tractor control unit operating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05199803A JPH05199803A (en) | 1993-08-10 |
| JPH0771401B2 true JPH0771401B2 (en) | 1995-08-02 |
Family
ID=17964219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4307032A Expired - Lifetime JPH0771401B2 (en) | 1992-11-17 | 1992-11-17 | Operating device for control unit of riding agricultural machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0771401B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103412570A (en) * | 2013-07-16 | 2013-11-27 | 山河智能装备股份有限公司 | Operation control system for engineering mechanical arm |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS592720Y2 (en) * | 1977-05-23 | 1984-01-25 | 斎藤 博 | Ultrasonic spray bottle washer |
| JPS5842198Y2 (en) * | 1978-06-13 | 1983-09-24 | 株式会社クボタ | Tractor drive structure |
| JPS563034U (en) * | 1979-06-22 | 1981-01-12 | ||
| JPS5626986U (en) * | 1979-08-03 | 1981-03-12 | ||
| JPS6121898Y2 (en) * | 1980-02-18 | 1986-07-01 | ||
| JPS5720805U (en) * | 1980-07-10 | 1982-02-03 | ||
| JPS57122973U (en) * | 1981-01-23 | 1982-07-31 | ||
| JPS5842198U (en) * | 1981-09-17 | 1983-03-19 | 三星産業株式会社 | Asphalt sheet with synthetic resin net as core material |
| JPS6029402Y2 (en) * | 1981-09-22 | 1985-09-05 | 株式会社小松製作所 | Work discrimination device in pallet magazine |
| JPS5853884A (en) * | 1981-09-26 | 1983-03-30 | 富士通株式会社 | Inspecting device |
| JPS5995811U (en) * | 1982-12-16 | 1984-06-29 | 株式会社クボタ | Agricultural tractor with rolling control mechanism |
| JPS59182108U (en) * | 1983-05-25 | 1984-12-05 | 株式会社クボタ | Structure of control operation part in work vehicle |
| JPS59186005U (en) * | 1983-05-26 | 1984-12-10 | 株式会社クボタ | Structure of control operation part in work vehicle |
| JPS6083505A (en) * | 1983-10-17 | 1985-05-11 | 三菱農機株式会社 | Lifting controller of working machine for tractor |
| JPS6077309U (en) * | 1983-11-04 | 1985-05-30 | 三菱農機株式会社 | Lifting safety device in the lifting control mechanism of work equipment |
| JPS6098220U (en) * | 1983-12-13 | 1985-07-04 | スズキ株式会社 | Malfunction prevention device for vehicle panel switches |
| JPS60155649U (en) * | 1984-03-27 | 1985-10-17 | 株式会社クボタ | vehicle seating equipment |
-
1992
- 1992-11-17 JP JP4307032A patent/JPH0771401B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05199803A (en) | 1993-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |